76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
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/*
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* Copyright (c) 2020, STMicroelectronics - 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 <errno.h>
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#include <platform_def.h>
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#include <common/debug.h>
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#include <drivers/auth/img_parser_mod.h>
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#include <plat/common/platform.h>
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static void img_lib_init(void)
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{
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}
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static int img_check_integrity(void *img, unsigned int img_len)
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{
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return stm32mp_check_header(stm32mp_get_loaded_header(),
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(uintptr_t)img);
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}
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static int img_get_auth_param(const auth_param_type_desc_t *type_desc,
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void *img, unsigned int img_len, void **param,
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unsigned int *param_len)
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{
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boot_api_image_header_t *image_header = stm32mp_get_loaded_header();
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switch (type_desc->type) {
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case AUTH_PARAM_SIG:
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*param_len = sizeof(image_header->image_signature);
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*param = &image_header->image_signature;
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break;
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case AUTH_PARAM_SIG_ALG:
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*param_len = sizeof(image_header->option_flags) +
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sizeof(image_header->ecc_algo_type);
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*param = &image_header->option_flags;
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/*
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* Store option_flags and ecc_alog_type in same param
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* structure because they both have the same header fields.
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*/
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break;
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case AUTH_PARAM_PUB_KEY:
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*param_len = sizeof(image_header->ecc_pubk);
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*param = &image_header->ecc_pubk;
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break;
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case AUTH_PARAM_RAW_DATA:
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if (type_desc->cookie == NULL) {
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*param_len = image_header->image_length;
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*param = img;
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} else {
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return -EINVAL;
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}
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break;
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case AUTH_PARAM_NV_CTR:
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if (type_desc->cookie == NULL) {
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*param_len = sizeof(image_header->image_version);
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*param = &image_header->image_version;
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} else {
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return -EINVAL;
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}
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break;
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default:
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return -EINVAL;
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}
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return 0;
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}
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REGISTER_IMG_PARSER_LIB(IMG_PLAT, "stm32_img_parser_lib",
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img_lib_init,
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img_check_integrity,
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img_get_auth_param);
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