1 /*
2  * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
3  *
4  * SPDX-License-Identifier: BSD-3-Clause
5  */
6 
7 #ifndef __AUTH_MOD_H__
8 #define __AUTH_MOD_H__
9 
10 #if TRUSTED_BOARD_BOOT
11 
12 #include <auth_common.h>
13 #include <cot_def.h>
14 #include <img_parser_mod.h>
15 
16 /*
17  * Image flags
18  */
19 #define IMG_FLAG_AUTHENTICATED		(1 << 0)
20 
21 
22 /*
23  * Authentication image descriptor
24  */
25 typedef struct auth_img_desc_s {
26 	unsigned int img_id;
27 	img_type_t img_type;
28 	const struct auth_img_desc_s *parent;
29 	auth_method_desc_t img_auth_methods[AUTH_METHOD_NUM];
30 	auth_param_desc_t authenticated_data[COT_MAX_VERIFIED_PARAMS];
31 } auth_img_desc_t;
32 
33 /* Public functions */
34 void auth_mod_init(void);
35 int auth_mod_get_parent_id(unsigned int img_id, unsigned int *parent_id);
36 int auth_mod_verify_img(unsigned int img_id,
37 			void *img_ptr,
38 			unsigned int img_len);
39 
40 /* Macro to register a CoT defined as an array of auth_img_desc_t */
41 #define REGISTER_COT(_cot) \
42 	const auth_img_desc_t *const cot_desc_ptr = \
43 			(const auth_img_desc_t *const)&_cot[0]; \
44 	unsigned int auth_img_flags[sizeof(_cot)/sizeof(_cot[0])]
45 
46 #endif /* TRUSTED_BOARD_BOOT */
47 
48 #endif /* __AUTH_MOD_H__ */
49