1*bc420748SJens Wiklander /* 2*bc420748SJens Wiklander * Copyright (c) 2015, Linaro Limited 3*bc420748SJens Wiklander * All rights reserved. 4*bc420748SJens Wiklander * 5*bc420748SJens Wiklander * Redistribution and use in source and binary forms, with or without 6*bc420748SJens Wiklander * modification, are permitted provided that the following conditions are met: 7*bc420748SJens Wiklander * 8*bc420748SJens Wiklander * 1. Redistributions of source code must retain the above copyright notice, 9*bc420748SJens Wiklander * this list of conditions and the following disclaimer. 10*bc420748SJens Wiklander * 11*bc420748SJens Wiklander * 2. Redistributions in binary form must reproduce the above copyright notice, 12*bc420748SJens Wiklander * this list of conditions and the following disclaimer in the documentation 13*bc420748SJens Wiklander * and/or other materials provided with the distribution. 14*bc420748SJens Wiklander * 15*bc420748SJens Wiklander * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 16*bc420748SJens Wiklander * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17*bc420748SJens Wiklander * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18*bc420748SJens Wiklander * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 19*bc420748SJens Wiklander * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 20*bc420748SJens Wiklander * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 21*bc420748SJens Wiklander * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 22*bc420748SJens Wiklander * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 23*bc420748SJens Wiklander * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 24*bc420748SJens Wiklander * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25*bc420748SJens Wiklander * POSSIBILITY OF SUCH DAMAGE. 26*bc420748SJens Wiklander */ 27*bc420748SJens Wiklander #ifndef SIGNED_HDR_H 28*bc420748SJens Wiklander #define SIGNED_HDR_H 29*bc420748SJens Wiklander 30*bc420748SJens Wiklander #include <types_ext.h> 31*bc420748SJens Wiklander 32*bc420748SJens Wiklander enum shdr_img_type { 33*bc420748SJens Wiklander SHDR_TA = 0, 34*bc420748SJens Wiklander }; 35*bc420748SJens Wiklander 36*bc420748SJens Wiklander #define SHDR_MAGIC 0x4f545348 37*bc420748SJens Wiklander 38*bc420748SJens Wiklander /** 39*bc420748SJens Wiklander * struct shdr - signed header 40*bc420748SJens Wiklander * @magic: magic number must match SHDR_MAGIC 41*bc420748SJens Wiklander * @img_type: image type, values defined by enum shdr_img_type 42*bc420748SJens Wiklander * @img_size: image size in bytes 43*bc420748SJens Wiklander * @algo: algorithm, defined by public key algorithms TEE_ALG_* 44*bc420748SJens Wiklander * from TEE Internal API specification 45*bc420748SJens Wiklander * @hash_size: size of the signed hash 46*bc420748SJens Wiklander * @sig_size: size of the signature 47*bc420748SJens Wiklander * @hash: hash of an image 48*bc420748SJens Wiklander * @sig: signature of @hash 49*bc420748SJens Wiklander */ 50*bc420748SJens Wiklander struct shdr { 51*bc420748SJens Wiklander uint32_t magic; 52*bc420748SJens Wiklander uint32_t img_type; 53*bc420748SJens Wiklander uint32_t img_size; 54*bc420748SJens Wiklander uint32_t algo; 55*bc420748SJens Wiklander uint16_t hash_size; 56*bc420748SJens Wiklander uint16_t sig_size; 57*bc420748SJens Wiklander /* 58*bc420748SJens Wiklander * Commented out element used to visualize the layout dynamic part 59*bc420748SJens Wiklander * of the struct. 60*bc420748SJens Wiklander * 61*bc420748SJens Wiklander * hash is accessed through the macro SHDR_GET_HASH and 62*bc420748SJens Wiklander * signature is accessed through the macro SHDR_GET_SIG 63*bc420748SJens Wiklander * 64*bc420748SJens Wiklander * uint8_t hash[hash_size]; 65*bc420748SJens Wiklander * uint8_t sig[sig_size]; 66*bc420748SJens Wiklander */ 67*bc420748SJens Wiklander }; 68*bc420748SJens Wiklander 69*bc420748SJens Wiklander #define SHDR_GET_SIZE(x) (sizeof(struct shdr) + (x)->hash_size + \ 70*bc420748SJens Wiklander (x)->sig_size) 71*bc420748SJens Wiklander #define SHDR_GET_HASH(x) (uint8_t *)(((struct shdr *)(x)) + 1) 72*bc420748SJens Wiklander #define SHDR_GET_SIG(x) (SHDR_GET_HASH(x) + (x)->hash_size) 73*bc420748SJens Wiklander 74*bc420748SJens Wiklander #endif /*SIGNED_HDR_H*/ 75*bc420748SJens Wiklander 76