65 lines
1.8 KiB
C
65 lines
1.8 KiB
C
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/*
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* Copyright (c) 2015-2018, 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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#ifndef IMG_PARSER_MOD_H
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#define IMG_PARSER_MOD_H
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#include <drivers/auth/auth_common.h>
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/*
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* Return values
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*/
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enum img_parser_ret_value {
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IMG_PARSER_OK,
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IMG_PARSER_ERR, /* Parser internal error */
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IMG_PARSER_ERR_FORMAT, /* Malformed image */
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IMG_PARSER_ERR_NOT_FOUND /* Authentication data not found */
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};
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/*
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* Image types. A parser should be instantiated and registered for each type
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*/
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typedef enum img_type_enum {
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IMG_RAW, /* Binary image */
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IMG_PLAT, /* Platform specific format */
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IMG_CERT, /* X509v3 certificate */
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IMG_MAX_TYPES,
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} img_type_t;
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/* Image parser library structure */
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typedef struct img_parser_lib_desc_s {
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img_type_t img_type;
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const char *name;
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void (*init)(void);
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int (*check_integrity)(void *img, unsigned int img_len);
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int (*get_auth_param)(const auth_param_type_desc_t *type_desc,
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void *img, unsigned int img_len,
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void **param, unsigned int *param_len);
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} img_parser_lib_desc_t;
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/* Exported functions */
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void img_parser_init(void);
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int img_parser_check_integrity(img_type_t img_type,
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void *img_ptr, unsigned int img_len);
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int img_parser_get_auth_param(img_type_t img_type,
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const auth_param_type_desc_t *type_desc,
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void *img_ptr, unsigned int img_len,
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void **param_ptr, unsigned int *param_len);
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/* Macro to register an image parser library */
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#define REGISTER_IMG_PARSER_LIB(_type, _name, _init, _check_int, _get_param) \
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static const img_parser_lib_desc_t __img_parser_lib_desc_##_type \
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__section(".img_parser_lib_descs") __used = { \
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.img_type = _type, \
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.name = _name, \
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.init = _init, \
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.check_integrity = _check_int, \
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.get_auth_param = _get_param \
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}
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#endif /* IMG_PARSER_MOD_H */
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