mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-14 03:30:02 +00:00
49 lines
1.6 KiB
C
49 lines
1.6 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/>.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include "version_check.h"
|
||
|
|
|
||
|
|
#include "error_handling.h"
|
||
|
|
#include "model_version.h"
|
||
|
|
#include "monoctr.h"
|
||
|
|
|
||
|
|
void ensure_bootloader_min_version(void) {
|
||
|
|
monoctr_write(MONOCTR_BOOTLOADER_VERSION, BOOTLOADER_MONOTONIC_VERSION);
|
||
|
|
uint8_t val = 0;
|
||
|
|
ensure(monoctr_read(MONOCTR_BOOTLOADER_VERSION, &val), NULL);
|
||
|
|
ensure(sectrue * (val == BOOTLOADER_MONOTONIC_VERSION),
|
||
|
|
"Bootloader downgrade protection");
|
||
|
|
}
|
||
|
|
|
||
|
|
secbool check_firmware_min_version(uint8_t check_version) {
|
||
|
|
uint8_t min_version = 0;
|
||
|
|
ensure(monoctr_read(MONOCTR_FIRMWARE_VERSION, &min_version), "monoctr read");
|
||
|
|
|
||
|
|
return (check_version >= min_version) * sectrue;
|
||
|
|
}
|
||
|
|
|
||
|
|
void ensure_firmware_min_version(uint8_t version) {
|
||
|
|
monoctr_write(MONOCTR_FIRMWARE_VERSION, version);
|
||
|
|
uint8_t val = 0;
|
||
|
|
ensure(monoctr_read(MONOCTR_FIRMWARE_VERSION, &val), NULL);
|
||
|
|
ensure(sectrue * (val == version), "Firmware downgrade protection");
|
||
|
|
}
|