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a8eadc51a3
Currently we include MBEDTLS_CONFIG_FILE directly and if a custom config file is used it will included. However from mbedtls-3.x onwards it discourages usage of MBEDTLS_CONFIG_FILE include directly, so to resolve this and keep 2.28 compatibility include version.h which would include the custom config file if present and also would expose us with mbedtls-major-version number which could be used for selecting features and functions for mbedtls 2.28 or 3.3 Change-Id: I029992311be2a38b588ebbb350875b03ea29acdb Signed-off-by: Govindraj Raja <govindraj.raja@arm.com>
73 lines
1.4 KiB
C
73 lines
1.4 KiB
C
/*
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* Copyright (c) 2015-2023, Arm Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <assert.h>
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#include <stddef.h>
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/* mbed TLS headers */
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#include <mbedtls/memory_buffer_alloc.h>
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#include <mbedtls/platform.h>
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#include <mbedtls/version.h>
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#include <common/debug.h>
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#include <drivers/auth/mbedtls/mbedtls_common.h>
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#include <plat/common/platform.h>
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static void cleanup(void)
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{
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ERROR("EXIT from BL2\n");
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panic();
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}
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/*
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* mbed TLS initialization function
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*/
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void mbedtls_init(void)
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{
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static int ready;
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void *heap_addr;
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size_t heap_size = 0;
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int err;
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if (!ready) {
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if (atexit(cleanup))
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panic();
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err = plat_get_mbedtls_heap(&heap_addr, &heap_size);
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/* Ensure heap setup is proper */
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if (err < 0) {
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ERROR("Mbed TLS failed to get a heap\n");
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panic();
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}
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assert(heap_size >= TF_MBEDTLS_HEAP_SIZE);
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/* Initialize the mbed TLS heap */
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mbedtls_memory_buffer_alloc_init(heap_addr, heap_size);
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#ifdef MBEDTLS_PLATFORM_SNPRINTF_ALT
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mbedtls_platform_set_snprintf(snprintf);
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#endif
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ready = 1;
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}
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}
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/*
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* The following helper function simply returns the default allocated heap.
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* It can be used by platforms for their plat_get_mbedtls_heap() implementation.
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*/
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int get_mbedtls_heap_helper(void **heap_addr, size_t *heap_size)
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{
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static unsigned char heap[TF_MBEDTLS_HEAP_SIZE];
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assert(heap_addr != NULL);
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assert(heap_size != NULL);
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*heap_addr = heap;
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*heap_size = sizeof(heap);
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return 0;
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}
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