64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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//#include <zephyr.h>
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#include "sbl.h"
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#include <string.h>
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#include "mcuboot_config.h"
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//#include "os/os_heap.h"
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//#ifdef CONFIG_BOOT_USE_MBEDTLS
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#ifdef MCUBOOT_USE_MBED_TLS
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#include <mbedtls/platform.h>
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#include <mbedtls/memory_buffer_alloc.h>
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/*
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* This is the heap for mbed TLS. The value needed depends on the key
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* size and algorithm used. For RSA-2048 signing, 8192 bytes seems to be
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* enough. When using RSA-2048-OAEP encryption + RSA-2048 signing, 10240
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* bytes seem to be enough.
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*/
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//#if !defined(CONFIG_BOOT_ENCRYPT_RSA)
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#if !defined(MCUBOOT_ENCRYPT_RSA)
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#define CRYPTO_HEAP_SIZE 8192
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#else
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#define CRYPTO_HEAP_SIZE 10240
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#endif
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#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
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static unsigned char mempool[CRYPTO_HEAP_SIZE];
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#endif
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/*
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* Initialize mbedtls to be able to use the local heap.
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*/
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void os_heap_init(void)
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{
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#if defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
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mbedtls_memory_buffer_alloc_init(mempool, sizeof(mempool));
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#endif
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}
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#else
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void os_heap_init(void)
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{
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}
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#endif
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