1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #ifndef __AUTH_MOD_H__ 32 #define __AUTH_MOD_H__ 33 34 #if TRUSTED_BOARD_BOOT 35 36 #include <auth_common.h> 37 #include <cot_def.h> 38 #include <img_parser_mod.h> 39 40 /* 41 * Image flags 42 */ 43 #define IMG_FLAG_AUTHENTICATED (1 << 0) 44 45 46 /* 47 * Authentication image descriptor 48 */ 49 typedef struct auth_img_desc_s { 50 unsigned int img_id; 51 img_type_t img_type; 52 const struct auth_img_desc_s *parent; 53 auth_method_desc_t img_auth_methods[AUTH_METHOD_NUM]; 54 auth_param_desc_t authenticated_data[COT_MAX_VERIFIED_PARAMS]; 55 } auth_img_desc_t; 56 57 /* Public functions */ 58 void auth_mod_init(void); 59 int auth_mod_get_parent_id(unsigned int img_id, unsigned int *parent_id); 60 int auth_mod_verify_img(unsigned int img_id, 61 void *img_ptr, 62 unsigned int img_len); 63 64 /* Macro to register a CoT defined as an array of auth_img_desc_t */ 65 #define REGISTER_COT(_cot) \ 66 const auth_img_desc_t *const cot_desc_ptr = \ 67 (const auth_img_desc_t *const)&_cot[0]; \ 68 unsigned int auth_img_flags[sizeof(_cot)/sizeof(_cot[0])] 69 70 #endif /* TRUSTED_BOARD_BOOT */ 71 72 #endif /* __AUTH_MOD_H__ */ 73