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trezor-firmware/core/embed/prodtest/main.c

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/*
* 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 <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include STM32_HAL_H
#include "button.h"
#include "common.h"
#include "display.h"
#include "display_utils.h"
#include "fault_handlers.h"
#include "flash.h"
#include "flash_otp.h"
#include "i2c.h"
#include "model.h"
#include "mpu.h"
#include "prodtest_common.h"
#include "random_delays.h"
#include "sbu.h"
#include "sdcard.h"
#include "secbool.h"
#include "supervise.h"
#include "touch.h"
#include "usb.h"
#include "version.h"
#ifdef USE_OPTIGA
#include "optiga_commands.h"
#include "optiga_prodtest.h"
#include "optiga_transport.h"
#endif
#ifdef USE_HAPTIC
#include "haptic.h"
#endif
#ifdef USE_HASH_PROCESSOR
#include "hash_processor.h"
#endif
#include "memzero.h"
#ifdef STM32U5
#include "secure_aes.h"
#include "stm32u5xx_ll_utils.h"
#else
#include "stm32f4xx_ll_utils.h"
#endif
#ifdef TREZOR_MODEL_T
#define MODEL_IDENTIFIER "TREZOR2-"
#else
#define MODEL_IDENTIFIER MODEL_INTERNAL_NAME "-"
#endif
static secbool startswith(const char *s, const char *prefix) {
return sectrue * (0 == strncmp(s, prefix, strlen(prefix)));
}
static void vcp_intr(void) {
display_clear();
ensure(secfalse, "vcp_intr");
}
static char vcp_getchar(void) {
uint8_t c = 0;
int r = usb_vcp_read_blocking(VCP_IFACE, &c, 1, -1);
(void)r;
return (char)c;
}
static void vcp_readline(char *buf, size_t len) {
for (;;) {
char c = vcp_getchar();
if (c == '\r') {
vcp_puts("\r\n", 2);
break;
}
if (c < 32 || c > 126) { // not printable
continue;
}
if (len > 1) { // leave space for \0
*buf = c;
buf++;
len--;
vcp_puts(&c, 1);
}
}
if (len > 0) {
*buf = '\0';
}
}
static void usb_init_all(void) {
enum {
VCP_PACKET_LEN = 64,
VCP_BUFFER_LEN = 1024,
};
static const usb_dev_info_t dev_info = {
.device_class = 0xEF, // Composite Device Class
.device_subclass = 0x02, // Common Class
.device_protocol = 0x01, // Interface Association Descriptor
.vendor_id = 0x1209,
.product_id = 0x53C1,
.release_num = 0x0400,
.manufacturer = "SatoshiLabs",
.product = "TREZOR",
.serial_number = "000000000000",
.interface = "TREZOR Interface",
.usb21_enabled = secfalse,
.usb21_landing = secfalse,
};
static uint8_t tx_packet[VCP_PACKET_LEN];
static uint8_t tx_buffer[VCP_BUFFER_LEN];
static uint8_t rx_packet[VCP_PACKET_LEN];
static uint8_t rx_buffer[VCP_BUFFER_LEN];
static const usb_vcp_info_t vcp_info = {
.tx_packet = tx_packet,
.tx_buffer = tx_buffer,
.rx_packet = rx_packet,
.rx_buffer = rx_buffer,
.tx_buffer_len = VCP_BUFFER_LEN,
.rx_buffer_len = VCP_BUFFER_LEN,
.rx_intr_fn = vcp_intr,
.rx_intr_byte = 3, // Ctrl-C
.iface_num = VCP_IFACE,
.data_iface_num = 0x01,
.ep_cmd = 0x82,
.ep_in = 0x81,
.ep_out = 0x01,
.polling_interval = 10,
.max_packet_len = VCP_PACKET_LEN,
};
usb_init(&dev_info);
ensure(usb_vcp_add(&vcp_info), "usb_vcp_add");
usb_start();
}
static void draw_border(int width, int padding) {
const int W = width, P = padding, RX = DISPLAY_RESX, RY = DISPLAY_RESY;
display_clear();
display_bar(P, P, RX - 2 * P, RY - 2 * P, 0xFFFF);
display_bar(P + W, P + W, RX - 2 * (P + W), RY - 2 * (P + W), 0x0000);
display_refresh();
}
static void draw_welcome_screen(void) {
#if TREZOR_MODEL_R
display_bar(0, 0, DISPLAY_RESX, DISPLAY_RESY, 0xFFFF);
display_refresh();
#else
draw_border(1, 3);
#endif
}
static void test_border(void) {
draw_border(2, 0);
vcp_println("OK");
}
static void test_display(const char *colors) {
display_clear();
size_t l = strlen(colors);
size_t w = DISPLAY_RESX / l;
for (size_t i = 0; i < l; i++) {
uint16_t c = 0x0000; // black
switch (colors[i]) {
case 'R':
c = 0xF800;
break;
case 'G':
c = 0x07E0;
break;
case 'B':
c = 0x001F;
break;
case 'W':
c = 0xFFFF;
break;
}
display_bar(i * w, 0, i * w + w, DISPLAY_RESY, c);
}
display_refresh();
vcp_println("OK");
}
#ifdef USE_BUTTON
static secbool test_btn_press(uint32_t deadline, uint32_t btn) {
while (button_read() != (btn | BTN_EVT_DOWN)) {
if (HAL_GetTick() > deadline) {
vcp_println("ERROR TIMEOUT");
return secfalse;
}
}
while (button_read() != (btn | BTN_EVT_UP)) {
if (HAL_GetTick() > deadline) {
vcp_println("ERROR TIMEOUT");
return secfalse;
}
}
return sectrue;
}
static secbool test_btn_all(uint32_t deadline) {
bool left_pressed = 0;
bool right_pressed = 0;
while (true) {
uint32_t buttons = button_read();
if (buttons == (BTN_LEFT | BTN_EVT_DOWN)) {
left_pressed = 1;
}
if (buttons == (BTN_RIGHT | BTN_EVT_DOWN)) {
right_pressed = 1;
}
if (buttons == (BTN_LEFT | BTN_EVT_UP)) {
left_pressed = 0;
}
if (buttons == (BTN_RIGHT | BTN_EVT_UP)) {
right_pressed = 0;
}
if (left_pressed && right_pressed) {
break;
}
if (HAL_GetTick() > deadline) {
vcp_println("ERROR TIMEOUT");
return secfalse;
}
}
while (true) {
uint32_t buttons = button_read();
if (buttons == (BTN_LEFT | BTN_EVT_DOWN)) {
left_pressed = 1;
}
if (buttons == (BTN_RIGHT | BTN_EVT_DOWN)) {
right_pressed = 1;
}
if (buttons == (BTN_LEFT | BTN_EVT_UP)) {
left_pressed = 0;
}
if (buttons == (BTN_RIGHT | BTN_EVT_UP)) {
right_pressed = 0;
}
if (!left_pressed && !right_pressed) {
break;
}
if (HAL_GetTick() > deadline) {
vcp_println("ERROR TIMEOUT");
return secfalse;
}
}
return sectrue;
}
static void test_button(const char *args) {
int timeout = 0;
if (startswith(args, "LEFT ")) {
timeout = args[5] - '0';
uint32_t deadline = HAL_GetTick() + timeout * 1000;
secbool r = test_btn_press(deadline, BTN_LEFT);
if (r == sectrue) vcp_println("OK");
}
if (startswith(args, "RIGHT ")) {
timeout = args[6] - '0';
uint32_t deadline = HAL_GetTick() + timeout * 1000;
secbool r = test_btn_press(deadline, BTN_RIGHT);
if (r == sectrue) vcp_println("OK");
}
if (startswith(args, "BOTH ")) {
timeout = args[5] - '0';
uint32_t deadline = HAL_GetTick() + timeout * 1000;
secbool r = test_btn_all(deadline);
if (r == sectrue) vcp_println("OK");
}
}
#endif
#ifdef USE_TOUCH
static secbool touch_click_timeout(uint32_t *touch, uint32_t timeout_ms) {
uint32_t deadline = HAL_GetTick() + timeout_ms;
uint32_t r = 0;
while (touch_read())
;
while ((touch_read() & TOUCH_START) == 0) {
if (HAL_GetTick() > deadline) return secfalse;
}
while (((r = touch_read()) & TOUCH_END) == 0) {
if (HAL_GetTick() > deadline) return secfalse;
}
while (touch_read())
;
*touch = r;
return sectrue;
}
static void test_touch(const char *args) {
int column = args[0] - '0';
int timeout = args[1] - '0';
display_clear();
switch (column) {
case 1:
display_bar(0, 0, 120, 120, 0xFFFF);
break;
case 2:
display_bar(120, 0, 120, 120, 0xFFFF);
break;
case 3:
display_bar(120, 120, 120, 120, 0xFFFF);
break;
default:
display_bar(0, 120, 120, 120, 0xFFFF);
break;
}
display_refresh();
touch_power_on();
uint32_t evt = 0;
if (touch_click_timeout(&evt, timeout * 1000)) {
uint16_t x = touch_unpack_x(evt);
uint16_t y = touch_unpack_y(evt);
vcp_println("OK %d %d", x, y);
} else {
vcp_println("ERROR TIMEOUT");
}
display_clear();
display_refresh();
touch_power_off();
}
static void test_sensitivity(const char *args) {
int v = atoi(args);
touch_power_on();
touch_sensitivity(v & 0xFF);
display_clear();
display_refresh();
for (;;) {
uint32_t evt = touch_read();
if (evt & TOUCH_START || evt & TOUCH_MOVE) {
int x = touch_unpack_x(evt);
int y = touch_unpack_y(evt);
display_clear();
display_bar(x - 48, y - 48, 96, 96, 0xFFFF);
display_refresh();
} else if (evt & TOUCH_END) {
display_clear();
display_refresh();
}
}
touch_power_off();
}
static void touch_version(void) {
uint8_t version = touch_get_version();
vcp_println("OK %d", version);
}
#endif
static void test_pwm(const char *args) {
int v = atoi(args);
display_backlight(v);
display_refresh();
vcp_println("OK");
}
#ifdef USE_SD_CARD
static void test_sd(void) {
#define BLOCK_SIZE (32 * 1024)
static uint32_t buf1[BLOCK_SIZE / sizeof(uint32_t)];
static uint32_t buf2[BLOCK_SIZE / sizeof(uint32_t)];
bool low_speed = false;
#ifndef TREZOR_MODEL_T3T1
if (sectrue != sdcard_is_present()) {
vcp_println("ERROR NOCARD");
return;
}
#else
low_speed = true;
#endif
if (sectrue != sdcard_power_on_unchecked(low_speed)) {
vcp_println("ERROR POWER ON");
return;
}
if (sectrue != sdcard_read_blocks(buf1, 0, BLOCK_SIZE / SDCARD_BLOCK_SIZE)) {
vcp_println("ERROR sdcard_read_blocks (0)");
goto power_off;
}
for (int j = 1; j <= 2; j++) {
for (int i = 0; i < BLOCK_SIZE / sizeof(uint32_t); i++) {
buf1[i] ^= 0xFFFFFFFF;
}
if (sectrue !=
sdcard_write_blocks(buf1, 0, BLOCK_SIZE / SDCARD_BLOCK_SIZE)) {
vcp_println("ERROR sdcard_write_blocks (%d)", j);
goto power_off;
}
HAL_Delay(1000);
if (sectrue !=
sdcard_read_blocks(buf2, 0, BLOCK_SIZE / SDCARD_BLOCK_SIZE)) {
vcp_println("ERROR sdcard_read_blocks (%d)", j);
goto power_off;
}
if (0 != memcmp(buf1, buf2, sizeof(buf1))) {
vcp_println("ERROR DATA MISMATCH");
goto power_off;
}
}
vcp_println("OK");
power_off:
sdcard_power_off();
}
#endif
static void test_firmware_version(void) {
vcp_println("OK %d.%d.%d", VERSION_MAJOR, VERSION_MINOR, VERSION_PATCH);
}
static void test_wipe(void) {
// erase start of the firmware (metadata) -> invalidate FW
ensure(flash_unlock_write(), NULL);
for (int i = 0; i < (1024 / FLASH_BLOCK_SIZE); i += FLASH_BLOCK_SIZE) {
flash_block_t data = {0};
ensure(flash_area_write_block(&FIRMWARE_AREA, i * FLASH_BLOCK_SIZE, data),
NULL);
}
ensure(flash_lock_write(), NULL);
display_clear();
display_text_center(DISPLAY_RESX / 2, DISPLAY_RESY / 2 + 10, "WIPED", -1,
FONT_BOLD, COLOR_WHITE, COLOR_BLACK);
display_refresh();
vcp_println("OK");
}
#ifdef USE_SBU
static void test_sbu(const char *args) {
secbool sbu1 = sectrue * (args[0] == '1');
secbool sbu2 = sectrue * (args[1] == '1');
sbu_set(sbu1, sbu2);
vcp_println("OK");
}
#endif
#ifdef USE_HAPTIC
static void test_haptic(const char *args) {
int duration_ms = atoi(args);
if (duration_ms <= 0) {
vcp_println("ERROR HAPTIC DURATION");
return;
}
if (haptic_test(duration_ms)) {
vcp_println("OK");
} else {
vcp_println("ERROR HAPTIC");
}
}
#endif
static void test_otp_read(void) {
uint8_t data[FLASH_OTP_BLOCK_SIZE + 1];
memzero(data, sizeof(data));
ensure(flash_otp_read(FLASH_OTP_BLOCK_BATCH, 0, data, FLASH_OTP_BLOCK_SIZE),
NULL);
// strip trailing 0xFF
for (size_t i = 0; i < sizeof(data); i++) {
if (data[i] == 0xFF) {
data[i] = 0x00;
break;
}
}
// use (null) for empty data
if (data[0] == 0x00) {
vcp_println("OK (null)");
} else {
vcp_println("OK %s", (const char *)data);
}
}
static void test_otp_write(const char *args) {
if (sectrue == flash_otp_is_locked(FLASH_OTP_BLOCK_BATCH)) {
vcp_println("ERROR ALREADY WRITTEN");
return;
}
char data[FLASH_OTP_BLOCK_SIZE];
memzero(data, sizeof(data));
strncpy(data, args, sizeof(data) - 1);
ensure(flash_otp_write(FLASH_OTP_BLOCK_BATCH, 0, (const uint8_t *)data,
sizeof(data)),
NULL);
ensure(flash_otp_lock(FLASH_OTP_BLOCK_BATCH), NULL);
vcp_println("OK");
}
static void test_otp_read_device_variant() {
uint8_t data[FLASH_OTP_BLOCK_SIZE] = {0};
if (sectrue !=
flash_otp_read(FLASH_OTP_BLOCK_DEVICE_VARIANT, 0, data, sizeof(data))) {
vcp_println("ERROR");
return;
}
vcp_print("OK ");
for (int i = 0; i < sizeof(data); i++) {
vcp_print("%d ", data[i]);
}
vcp_println("");
}
static void test_otp_write_device_variant(const char *args) {
#ifdef USE_OPTIGA
optiga_locked_status status = get_optiga_locked_status();
if (status == OPTIGA_LOCKED_FALSE) {
vcp_println("ERROR NOT LOCKED");
return;
}
if (status != OPTIGA_LOCKED_TRUE) {
// Error reported by get_optiga_locked_status().
return;
}
#endif
if (sectrue == flash_otp_is_locked(FLASH_OTP_BLOCK_DEVICE_VARIANT)) {
vcp_println("ERROR ALREADY WRITTEN");
return;
}
volatile char data[FLASH_OTP_BLOCK_SIZE];
memzero((char *)data, sizeof(data));
data[0] = 1;
int arg_start = 0;
int arg_num = 1;
int arg_len = 0;
int n = 0;
while (args[n] != 0) {
if (args[n] == ' ') {
if (arg_len != 0) {
if (arg_num < sizeof(data)) {
data[arg_num] = (uint8_t)atoi(&args[arg_start]);
}
arg_num++;
}
arg_start = n + 1;
arg_len = 0;
} else {
arg_len++;
}
n++;
}
if (arg_len != 0 && arg_num < sizeof(data)) {
data[arg_num] = (uint8_t)atoi(&args[arg_start]);
}
ensure(flash_otp_write(FLASH_OTP_BLOCK_DEVICE_VARIANT, 0,
(const uint8_t *)data, sizeof(data)),
NULL);
ensure(flash_otp_lock(FLASH_OTP_BLOCK_DEVICE_VARIANT), NULL);
vcp_println("OK");
}
void cpuid_read(void) {
uint32_t cpuid[3];
cpuid[0] = LL_GetUID_Word0();
cpuid[1] = LL_GetUID_Word1();
cpuid[2] = LL_GetUID_Word2();
vcp_print("OK ");
vcp_println_hex((uint8_t *)cpuid, sizeof(cpuid));
}
#define BACKLIGHT_NORMAL 150
int main(void) {
display_reinit();
display_orientation(0);
random_delays_init();
#ifdef STM32U5
secure_aes_init();
#endif
#ifdef USE_HASH_PROCESSOR
hash_processor_init();
#endif
#ifdef USE_SD_CARD
sdcard_init();
#endif
#ifdef USE_BUTTON
button_init();
#endif
#ifdef USE_I2C
i2c_init();
#endif
#ifdef USE_TOUCH
touch_init();
#endif
#ifdef USE_SBU
sbu_init();
#endif
#ifdef USE_HAPTIC
haptic_init();
#endif
usb_init_all();
mpu_config_prodtest_initial();
#ifdef USE_OPTIGA
optiga_init();
optiga_open_application();
pair_optiga();
#endif
mpu_config_prodtest();
fault_handlers_init();
drop_privileges();
display_clear();
draw_welcome_screen();
char dom[32];
// format: {MODEL_IDENTIFIER}-YYMMDD
if (sectrue == flash_otp_read(FLASH_OTP_BLOCK_BATCH, 0, (uint8_t *)dom, 32) &&
sectrue == startswith(dom, MODEL_IDENTIFIER) && dom[31] == 0) {
display_qrcode(DISPLAY_RESX / 2, DISPLAY_RESY / 2, dom, 4);
display_text_center(DISPLAY_RESX / 2, DISPLAY_RESY - 30, dom + 8, -1,
FONT_BOLD, COLOR_WHITE, COLOR_BLACK);
}
display_fade(0, BACKLIGHT_NORMAL, 1000);
char line[2048]; // expecting hundreds of bytes represented as hexadecimal
// characters
for (;;) {
vcp_readline(line, sizeof(line));
if (startswith(line, "PING")) {
vcp_println("OK");
} else if (startswith(line, "CPUID READ")) {
cpuid_read();
} else if (startswith(line, "BORDER")) {
test_border();
} else if (startswith(line, "DISP ")) {
test_display(line + 5);
#ifdef USE_BUTTON
} else if (startswith(line, "BUTTON ")) {
test_button(line + 7);
#endif
#ifdef USE_TOUCH
} else if (startswith(line, "TOUCH VERSION")) {
touch_version();
} else if (startswith(line, "TOUCH ")) {
test_touch(line + 6);
} else if (startswith(line, "SENS ")) {
test_sensitivity(line + 5);
#endif
} else if (startswith(line, "PWM ")) {
test_pwm(line + 4);
#ifdef USE_SD_CARD
} else if (startswith(line, "SD")) {
test_sd();
#endif
#ifdef USE_SBU
} else if (startswith(line, "SBU ")) {
test_sbu(line + 4);
#endif
#ifdef USE_HAPTIC
} else if (startswith(line, "HAPTIC ")) {
test_haptic(line + 7);
#endif
#ifdef USE_OPTIGA
} else if (startswith(line, "OPTIGAID READ")) {
optigaid_read();
} else if (startswith(line, "CERTINF READ")) {
cert_read(OID_CERT_INF);
} else if (startswith(line, "CERTDEV WRITE ")) {
cert_write(OID_CERT_DEV, line + 14);
} else if (startswith(line, "CERTDEV READ")) {
cert_read(OID_CERT_DEV);
} else if (startswith(line, "CERTFIDO WRITE ")) {
cert_write(OID_CERT_FIDO, line + 15);
} else if (startswith(line, "CERTFIDO READ")) {
cert_read(OID_CERT_FIDO);
} else if (startswith(line, "KEYFIDO WRITE ")) {
keyfido_write(line + 14);
} else if (startswith(line, "KEYFIDO READ")) {
pubkey_read(OID_KEY_FIDO);
} else if (startswith(line, "LOCK")) {
optiga_lock();
} else if (startswith(line, "CHECK LOCKED")) {
check_locked();
} else if (startswith(line, "SEC READ")) {
sec_read();
#endif
} else if (startswith(line, "OTP READ")) {
test_otp_read();
} else if (startswith(line, "OTP WRITE ")) {
test_otp_write(line + 10);
} else if (startswith(line, "VARIANT READ")) {
test_otp_read_device_variant();
} else if (startswith(line, "VARIANT ")) {
test_otp_write_device_variant(line + 8);
} else if (startswith(line, "FIRMWARE VERSION")) {
test_firmware_version();
} else if (startswith(line, "WIPE")) {
test_wipe();
} else {
vcp_println("UNKNOWN");
}
}
return 0;
}
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