mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-14 03:30:02 +00:00
133 lines
4.0 KiB
C
133 lines
4.0 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 "blake2s.h"
|
|
#include "flash.h"
|
|
#include "image_hash_conf.h"
|
|
#include "model.h"
|
|
#include "secbool.h"
|
|
|
|
#define IMAGE_HEADER_SIZE 0x400 // size of the bootloader or firmware header
|
|
#define IMAGE_SIG_SIZE 65
|
|
#define IMAGE_INIT_CHUNK_SIZE (16 * 1024)
|
|
|
|
#define BOOTLOADER_IMAGE_MAGIC 0x425A5254 // TRZB
|
|
|
|
#define FIRMWARE_IMAGE_MAGIC 0x465A5254 // TRZF
|
|
|
|
typedef struct {
|
|
uint32_t magic;
|
|
uint32_t hdrlen;
|
|
uint32_t expiry;
|
|
uint32_t codelen;
|
|
uint32_t version;
|
|
uint32_t fix_version;
|
|
uint32_t hw_model;
|
|
uint8_t hw_revision;
|
|
uint8_t monotonic;
|
|
uint8_t reserved_0[2];
|
|
uint8_t hashes[512];
|
|
uint8_t reserved_1[415];
|
|
uint8_t sigmask;
|
|
uint8_t sig[64];
|
|
} 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_SECRET \
|
|
0x0080 // inverse logic, if set, don't allow to run with secret present
|
|
#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];
|
|
const uint8_t *origin; // pointer to the underlying data
|
|
} vendor_header;
|
|
|
|
typedef struct {
|
|
// vendor string
|
|
uint8_t vstr[64];
|
|
// vendor string length
|
|
size_t vstr_len;
|
|
// firmware version
|
|
uint8_t ver_major;
|
|
uint8_t ver_minor;
|
|
uint8_t ver_patch;
|
|
uint8_t ver_build;
|
|
// firmware fingerprint
|
|
uint8_t fingerprint[IMAGE_HASH_DIGEST_LENGTH];
|
|
// hash of vendor and image header
|
|
uint8_t hash[IMAGE_HASH_DIGEST_LENGTH];
|
|
} firmware_header_info_t;
|
|
|
|
const image_header *read_image_header(const uint8_t *const data,
|
|
const uint32_t magic,
|
|
const uint32_t maxsize);
|
|
|
|
secbool __wur check_image_model(const image_header *const hdr);
|
|
|
|
secbool __wur check_image_header_sig(const image_header *const hdr,
|
|
uint8_t key_m, uint8_t key_n,
|
|
const uint8_t *const *keys);
|
|
|
|
secbool __wur read_vendor_header(const uint8_t *const data,
|
|
vendor_header *const vhdr);
|
|
|
|
secbool __wur check_vendor_header_sig(const vendor_header *const vhdr,
|
|
uint8_t key_m, uint8_t key_n,
|
|
const uint8_t *const *keys);
|
|
|
|
secbool check_vendor_header_keys(const vendor_header *const vhdr);
|
|
|
|
void vendor_header_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 flash_area_t *area);
|
|
|
|
void get_image_fingerprint(const image_header *const hdr, uint8_t *const out);
|
|
|
|
secbool check_firmware_header(const uint8_t *header, size_t header_size,
|
|
firmware_header_info_t *info);
|
|
|
|
#endif
|