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trezor-firmware/embed/trezorhal/image.h
2018-02-26 14:07:37 +01:00

91 lines
2.8 KiB
C

/*
* This file is part of the TREZOR project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __TREZORHAL_IMAGE_H__
#define __TREZORHAL_IMAGE_H__
#include <stdint.h>
#include "secbool.h"
#define BOARDLOADER_START 0x08000000
#define BOOTLOADER_START 0x08020000
#define FIRMWARE_START 0x08040000
#define IMAGE_HEADER_SIZE 0x400
#define IMAGE_SIG_SIZE 65
#define IMAGE_CHUNK_SIZE (128 * 1024)
#define BOOTLOADER_IMAGE_MAGIC 0x425A5254 // TRZB
#define BOOTLOADER_IMAGE_MAXSIZE (1 * IMAGE_CHUNK_SIZE)
#define FIRMWARE_IMAGE_MAGIC 0x465A5254 // TRZF
#define FIRMWARE_IMAGE_MAXSIZE (13 * IMAGE_CHUNK_SIZE)
typedef struct {
uint32_t magic;
uint32_t hdrlen;
uint32_t expiry;
uint32_t codelen;
uint32_t version;
uint32_t fix_version;
// uint8_t reserved[8];
uint8_t hashes[512];
// uint8_t reserved[415];
uint8_t sigmask;
uint8_t sig[64];
uint8_t fingerprint[32];
} image_header;
#define MAX_VENDOR_PUBLIC_KEYS 8
#define VTRUST_WAIT 0x000F
#define VTRUST_RED 0x0010
#define VTRUST_CLICK 0x0020
#define VTRUST_STRING 0x0040
#define VTRUST_ALL (VTRUST_WAIT | VTRUST_RED | VTRUST_CLICK | VTRUST_STRING)
typedef struct {
uint32_t magic;
uint32_t hdrlen;
uint32_t expiry;
uint16_t version;
uint8_t vsig_m;
uint8_t vsig_n;
uint16_t vtrust;
// uint8_t reserved[14];
const uint8_t *vpub[MAX_VENDOR_PUBLIC_KEYS];
uint8_t vstr_len;
const char *vstr;
const uint8_t *vimg;
uint8_t sigmask;
uint8_t sig[64];
} vendor_header;
secbool __wur load_image_header(const uint8_t * const data, const uint32_t magic, const uint32_t maxsize, uint8_t key_m, uint8_t key_n, const uint8_t * const *keys, image_header * const hdr);
secbool __wur load_vendor_header(const uint8_t * const data, uint8_t key_m, uint8_t key_n, const uint8_t * const *keys, vendor_header * const vhdr);
void vendor_keys_hash(const vendor_header * const vhdr, uint8_t *hash);
secbool __wur check_single_hash(const uint8_t * const hash, const uint8_t * const data, int len);
secbool __wur check_image_contents(const image_header * const hdr, uint32_t firstskip, const uint8_t *sectors, int blocks);
#endif