53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/** @file
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* @brief mbed TLS initialization
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*
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* Initialize the mbed TLS library like setup the heap etc.
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*/
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/*
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* Copyright (c) 2017 Intel Corporation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <zephyr/init.h>
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#include <zephyr/app_memory/app_memdomain.h>
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#if defined(CONFIG_MBEDTLS)
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#if !defined(CONFIG_MBEDTLS_CFG_FILE)
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#include "mbedtls/config.h"
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#else
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#include CONFIG_MBEDTLS_CFG_FILE
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#endif /* CONFIG_MBEDTLS_CFG_FILE */
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#endif
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#if defined(CONFIG_MBEDTLS_ENABLE_HEAP) && \
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defined(MBEDTLS_MEMORY_BUFFER_ALLOC_C)
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#include <mbedtls/memory_buffer_alloc.h>
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#if !defined(CONFIG_MBEDTLS_HEAP_SIZE)
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#error "Please set heap size to be used. Set value to CONFIG_MBEDTLS_HEAP_SIZE \
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option."
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#endif
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static unsigned char _mbedtls_heap[CONFIG_MBEDTLS_HEAP_SIZE];
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static void init_heap(void)
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{
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mbedtls_memory_buffer_alloc_init(_mbedtls_heap, sizeof(_mbedtls_heap));
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}
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#else
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#define init_heap(...)
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#endif /* CONFIG_MBEDTLS_ENABLE_HEAP && MBEDTLS_MEMORY_BUFFER_ALLOC_C */
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static int _mbedtls_init(const struct device *device)
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{
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ARG_UNUSED(device);
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init_heap();
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return 0;
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}
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SYS_INIT(_mbedtls_init, POST_KERNEL, 0);
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