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Code Issues Releases Wiki Activity

feat(core): update NRF application from firmware

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This commit is contained in:
tychovrahe 2025-05-25 18:45:25 +02:00 committed by TychoVrahe
parent deac4dc099
commit 01465aac7c
45 changed files with 1503 additions and 54 deletions
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10
core/SConscript.firmware
View File

@ -831,6 +831,7 @@ protobuf_blobs = env.Command(
)
env.Depends(protobuf_blobs, qstr_generated)
#
# Rust library
#
@ -891,7 +892,14 @@ tools.embed_raw_binary(
f'build/kernel/kernel.bin',
)
if 'nrf' in FEATURES_AVAILABLE:
tools.embed_raw_binary(
obj_program,
env,
'nrf_app',
'build/firmware/nrf_app.o',
f'embed/models/{TREZOR_MODEL}/trezor-ble.bin',
)
env.Depends(obj_program, qstr_generated)

4
core/SConscript.kernel
View File

@ -263,6 +263,10 @@ env = Environment(
FEATURES_AVAILABLE = models.configure_board(TREZOR_MODEL, HW_REVISION, FEATURES_WANTED, env, CPPDEFINES_HAL, SOURCE_HAL, PATH_HAL)
if 'nrf' in FEATURES_AVAILABLE:
FEATURES_AVAILABLE.append('smp')
CPPDEFINES_HAL.append('USE_SMP')
FEATURE_FLAGS["AES_GCM"] = FEATURE_FLAGS["AES_GCM"] or "tropic" in FEATURES_AVAILABLE
if not 'secmon_layout' in FEATURES_AVAILABLE:

179
core/embed/io/nrf/inc/io/nrf.h
View File

@ -23,7 +23,6 @@
#include <sha2.h>
// maximum data size allowed to be sent
#define NRF_MAX_TX_DATA_SIZE (244)
@ -58,66 +57,170 @@ typedef struct {
uint8_t hash[SHA256_DIGEST_LENGTH];
} nrf_info_t;
/** Callback type invoked when data is received on a registered service */
typedef void (*nrf_rx_callback_t)(const uint8_t *data, uint32_t len);
/** Callback type invoked when a message transmission completes */
typedef void (*nrf_tx_callback_t)(nrf_status_t status, void *context);
// Initialize the NRF driver
/**
* @brief Initialize the NRF driver.
*/
void nrf_init(void);
// Deinitialize the NRF driver
/**
* @brief Deinitialize the NRF driver.
*/
void nrf_deinit(void);
// Suspend NRF driver
/**
* @brief Suspend the NRF driver.
*/
void nrf_suspend(void);
// Check that NRF is running
/**
* @brief Check if the NRF communication is currently running.
*
* @return true if running, false otherwise
*/
bool nrf_is_running(void);
// Register listener for a service
// The listener will be called when a message is received for the service
// The listener will be called from an interrupt context
// Returns false if a listener for the service is already registered
/**
* @brief Register a listener for a specific NRF service.
*
* The listener callback will be invoked from an interrupt context when a
* message is received for the specified service.
*
* @param service Service identifier to register for
* @param callback Function to call when data arrives
* @return false if a listener for the service is already registered, true
* otherwise
*/
bool nrf_register_listener(nrf_service_id_t service,
nrf_rx_callback_t callback);
// Unregister listener for a service
/**
* @brief Unregister the listener for a specific NRF service.
*
* @param service Service identifier to unregister
*/
void nrf_unregister_listener(nrf_service_id_t service);
// Send a message to a service
// The message will be queued and sent as soon as possible
// If the queue is full, the message will be dropped
// returns ID of the message if it was successfully queued, otherwise -1
/**
* @brief Send a message to a specific NRF service.
*
* The message will be queued and sent as soon as possible. If the queue is
* full, the message will be dropped.
*
* @param service Service identifier to send to
* @param data Pointer to the data buffer to send
* @param len Length of the data buffer
* @param callback Function to call upon transmission completion
* @param context Context pointer passed to the callback
* @return ID of the message if successfully queued; -1 otherwise
*/
int32_t nrf_send_msg(nrf_service_id_t service, const uint8_t *data,
uint32_t len, nrf_tx_callback_t callback, void *context);
// Abort a message by ID
// If the message is already sent or the id is not found, it does nothing and
// returns false If the message is queued, it will be removed from the queue If
// the message is being sent, it will be sent. The callback will not be called.
/**
* @brief Abort a queued message by its ID.
*
* If the message is already sent or the ID is not found, this function does
* nothing and returns false. If the message is queued, it will be removed from
* the queue. If the message is in the process of being sent, it will complete,
* but its callback will not be invoked.
*
* @param id Identifier of the message to abort
* @return false if the message was already sent or not found, true if aborted
*/
bool nrf_abort_msg(int32_t id);
// Reads version and other info from NRF application.
// Blocking function.
/**
* @brief Read version and other information from the NRF application.
*
* Blocking function that fills the provided nrf_info_t structure.
*
* @param info Pointer to an nrf_info_t structure to populate
* @return true on success; false on communication error
*/
bool nrf_get_info(nrf_info_t *info);
///////////////////////////////////////////////////////////////////////////////
// TEST only functions
// Test SPI communication with NRF
bool nrf_test_spi_comm(void);
// Test UART communication with NRF
bool nrf_test_uart_comm(void);
// Test reset pin
bool nrf_test_reset(void);
// Test GPIO stay in bootloader
bool nrf_test_gpio_stay_in_bld(void);
// Test GPIO reserved
bool nrf_test_gpio_reserved(void);
/**
* @brief Place the NRF device into system-off (deep sleep) mode.
*
* @return true if the command was acknowledged; false otherwise
*/
bool nrf_system_off(void);
/**
* @brief Reboot the NRF device immediately.
*/
void nrf_reboot(void);
/**
* @brief Send raw UART data to the NRF device (for debugging purposes).
*
* @param data Pointer to the data buffer
* @param len Length of the data buffer
*/
void nrf_send_uart_data(const uint8_t *data, uint32_t len);
/**
* @brief Check if an nRF device firmware update is required by comparing SHA256
* hashes.
*
* @param image_ptr Pointer to the firmware image in memory
* @param image_len Length of the firmware image in bytes
* @return true if an update is required (e.g., corrupted image detected or hash
* mismatch), false if the device already has the same firmware version
*/
bool nrf_update_required(const uint8_t *image_ptr, size_t image_len);
/**
* @brief Perform a firmware update on the nRF device via DFU (Device Firmware
* Update).
*
* @param image_ptr Pointer to the firmware image in memory
* @param image_len Length of the firmware image in bytes
* @return true always (indicates that the update process was initiated)
*/
bool nrf_update(const uint8_t *image_ptr, size_t image_len);
///////////////////////////////////////////////////////////////////////////////
// TEST-only functions
/**
* @brief Test SPI communication with the NRF device.
*
* @return true if SPI communication succeeds; false otherwise
*/
bool nrf_test_spi_comm(void);
/**
* @brief Test UART communication with the NRF device.
*
* @return true if UART communication succeeds; false otherwise
*/
bool nrf_test_uart_comm(void);
/**
* @brief Test the NRF reset pin functionality.
*
* @return true if reset behavior is correct; false otherwise
*/
bool nrf_test_reset(void);
/**
* @brief Test the GPIO pin that forces the device to stay in bootloader.
*
* @return true if the GPIO behaves correctly; false otherwise
*/
bool nrf_test_gpio_stay_in_bld(void);
/**
* @brief Test a reserved GPIO pin on the NRF device.
*
* @return true if the GPIO behavior is correct; false otherwise
*/
bool nrf_test_gpio_reserved(void);
///////////////////////////////////////////////////////////////////////////////

3
core/embed/io/nrf/nrf_internal.h
View File

@ -52,3 +52,6 @@ bool nrf_in_reserved(void);
void nrf_uart_send(uint8_t data);
uint8_t nrf_uart_get_received(void);
void nrf_set_dfu_mode(bool set);
bool nrf_is_dfu_mode(void);

51
core/embed/io/nrf/stm32u5/nrf.c
View File

@ -32,6 +32,7 @@
#include "../crc8.h"
#include "../nrf_internal.h"
#include "rust_smp.h"
#define MAX_SPI_DATA_SIZE (244)
@ -91,6 +92,9 @@ typedef struct {
systimer_t *timer;
bool pending_spi_transaction;
bool dfu_mode;
bool dfu_tx_pending;
} nrf_driver_t;
static nrf_driver_t g_nrf_driver = {0};
@ -645,6 +649,14 @@ uint8_t nrf_uart_get_received(void) {
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *urt) {
nrf_driver_t *drv = &g_nrf_driver;
if (drv->initialized && urt == &drv->urt) {
#ifdef USE_SMP
if (nrf_is_dfu_mode()) {
smp_process_rx_byte(drv->urt_rx_byte);
HAL_UART_Receive_IT(&drv->urt, &drv->urt_rx_byte, 1);
return;
}
#endif
drv->urt_rx_complete = true;
}
}
@ -652,6 +664,7 @@ void HAL_UART_RxCpltCallback(UART_HandleTypeDef *urt) {
void HAL_UART_ErrorCallback(UART_HandleTypeDef *urt) {
nrf_driver_t *drv = &g_nrf_driver;
if (drv->initialized && urt == &drv->urt) {
drv->dfu_tx_pending = false;
HAL_UART_Receive_IT(&drv->urt, &drv->urt_rx_byte, 1);
}
}
@ -659,6 +672,7 @@ void HAL_UART_ErrorCallback(UART_HandleTypeDef *urt) {
void HAL_UART_TxCpltCallback(UART_HandleTypeDef *urt) {
nrf_driver_t *drv = &g_nrf_driver;
if (drv->initialized && urt == &drv->urt) {
drv->dfu_tx_pending = false;
drv->urt_tx_complete = true;
}
}
@ -938,19 +952,19 @@ bool nrf_system_off(void) {
return true;
}
void nrf_set_dfu_mode(void) {
#ifdef USE_SMP
void nrf_set_dfu_mode(bool set) {
nrf_driver_t *drv = &g_nrf_driver;
if (!drv->initialized) {
return;
}
// TODO
// if (nrf_reboot_to_bootloader()) {
// drv->mode_current = BLE_MODE_DFU;
// } else {
// drv->status_valid = false;
// }
drv->dfu_mode = set;
if (set) {
HAL_UART_Receive_IT(&drv->urt, &drv->urt_rx_byte, 1);
}
}
bool nrf_is_dfu_mode(void) {
@ -960,8 +974,27 @@ bool nrf_is_dfu_mode(void) {
return false;
}
return true;
// TODO
return drv->dfu_mode;
}
#endif
void nrf_send_uart_data(const uint8_t *data, uint32_t len) {
nrf_driver_t *drv = &g_nrf_driver;
if (drv->initialized) {
while (drv->dfu_tx_pending) {
irq_key_t key = irq_lock();
irq_unlock(key);
}
drv->dfu_tx_pending = true;
HAL_UART_Transmit_IT(&drv->urt, data, len);
while (drv->dfu_tx_pending) {
irq_key_t key = irq_lock();
irq_unlock(key);
}
}
}
#endif

147
core/embed/io/nrf/stm32u5/nrf_update.c Normal file
View File

@ -0,0 +1,147 @@
/*
* 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/>.
*/
#ifdef KERNEL_MODE
#ifdef USE_SMP
#include <trezor_bsp.h>
#include <trezor_rtl.h>
#include <io/nrf.h>
#include "../nrf_internal.h"
#include "rust_smp.h"
#include "sec/hash_processor.h"
#include "sys/systick.h"
#define IMAGE_HASH_LEN 32
#define IMAGE_TLV_SHA256 0x10
struct image_version {
uint8_t iv_major;
uint8_t iv_minor;
uint16_t iv_revision;
uint32_t iv_build_num;
} __packed;
struct image_header {
uint32_t ih_magic;
uint32_t ih_load_addr;
uint16_t ih_hdr_size; /* Size of image header (bytes). */
uint16_t ih_protect_tlv_size; /* Size of protected TLV area (bytes). */
uint32_t ih_img_size; /* Does not include header. */
uint32_t ih_flags; /* IMAGE_F_[...]. */
struct image_version ih_ver;
uint32_t _pad1;
} __packed;
/**
* Read the SHA-256 image hash from the TLV trailer of the given flash slot.
*
* @param binary_ptr pointer to the binary image
* @param out_hash Buffer of at least IMAGE_HASH_LEN bytes to receive the hash
* @return 0 on success, or a negative errno on failure
*/
static int read_image_sha256(const uint8_t *binary_ptr, size_t binary_size,
uint8_t out_hash[IMAGE_HASH_LEN]) {
int rc;
/* Read header to get image_size and hdr_size */
struct image_header *hdr = (struct image_header *)binary_ptr;
uint32_t img_size = hdr->ih_img_size;
uint32_t hdr_size = hdr->ih_hdr_size;
uint32_t tvl1_size = hdr->ih_protect_tlv_size;
/* Compute start of TLV trailer */
off_t off = 0 + hdr_size + img_size + tvl1_size + 4;
/* Scan TLVs until we find the SHA-256 entry */
while (true) {
uint16_t tlv_hdr[2];
if (off + sizeof(tlv_hdr) > binary_size) {
rc = -1; // Not enough data for TLV header
break;
}
memcpy(tlv_hdr, binary_ptr + off, sizeof(tlv_hdr));
uint16_t type = tlv_hdr[0];
uint16_t len = tlv_hdr[1];
if (off + sizeof(tlv_hdr) + len > binary_size) {
rc = -1; // Not enough data for TLV value
break;
}
if (type == IMAGE_TLV_SHA256) {
if (len != IMAGE_HASH_LEN) {
rc = -1;
} else {
memcpy(out_hash, binary_ptr + off + sizeof(tlv_hdr), IMAGE_HASH_LEN);
rc = 0;
}
break;
}
off += sizeof(tlv_hdr) + len;
}
return rc;
}
bool nrf_update_required(const uint8_t *image_ptr, size_t image_len) {
nrf_info_t info = {0};
uint16_t try_cntr = 0;
while (!nrf_get_info(&info)) {
nrf_reboot();
systick_delay_ms(500);
try_cntr++;
if (try_cntr > 3) {
// Assuming corrupted image, but we could also check comm with MCUboot
return true;
}
}
uint8_t expected_hash[SHA256_DIGEST_LENGTH] = {0};
read_image_sha256(image_ptr, image_len, expected_hash);
return memcmp(info.hash, expected_hash, SHA256_DIGEST_LENGTH) != 0;
}
bool nrf_update(const uint8_t *image_ptr, size_t image_len) {
nrf_reboot_to_bootloader();
nrf_set_dfu_mode(true);
uint8_t sha256[SHA256_DIGEST_LENGTH] = {0};
hash_processor_sha256_calc(image_ptr, image_len, sha256);
smp_upload_app_image(image_ptr, image_len, sha256, SHA256_DIGEST_LENGTH);
smp_reset();
return true;
}
#endif
#endif

BIN
core/embed/models/T3W1/trezor-ble.bin Normal file
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Binary file not shown.

21
core/embed/projects/firmware/main.c
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@ -44,6 +44,15 @@
#include "zkp_context.h"
#endif
#ifdef USE_NRF
#include <io/nrf.h>
extern const void nrf_app_start;
extern const void nrf_app_end;
extern const void nrf_app_size;
#endif
int main_func(uint32_t cmd, void *arg) {
if (cmd == 1) {
systask_postmortem_t *info = (systask_postmortem_t *)arg;
@ -51,7 +60,17 @@ int main_func(uint32_t cmd, void *arg) {
system_exit(0);
}
screen_boot_stage_2(DISPLAY_JUMP_BEHAVIOR == DISPLAY_RESET_CONTENT);
bool fading = DISPLAY_JUMP_BEHAVIOR == DISPLAY_RESET_CONTENT;
#ifdef USE_NRF
if (nrf_update_required(&nrf_app_start, (size_t)&nrf_app_size)) {
screen_update();
nrf_update(&nrf_app_start, (size_t)&nrf_app_size);
fading = true;
}
#endif
screen_boot_stage_2(fading);
#ifdef USE_SECP256K1_ZKP
ensure(sectrue * (zkp_context_init() == 0), NULL);

7
core/embed/rust/Cargo.lock generated
View File

@ -165,6 +165,12 @@ version = "2.4.1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "308cc39be01b73d0d18f82a0e7b2a3df85245f84af96fdddc5d202d27e47b86a"
[[package]]
name = "minicbor"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "50699691433ccd88fbe1f11e9155691d71fc363595109f35a92b77be2e0158f6"
[[package]]
name = "minimal-lexical"
version = "0.2.1"
@ -346,6 +352,7 @@ dependencies = [
"easer",
"glob",
"heapless",
"minicbor",
"num-derive",
"num-traits",
"pareen",

8
core/embed/rust/Cargo.toml
View File

@ -46,6 +46,8 @@ backlight = []
usb = []
optiga = []
ble = []
nrf = []
smp = []
tropic = []
translations = ["crypto"]
secmon_layout = []
@ -58,8 +60,10 @@ test = [
"debug",
"glob",
"micropython",
"nrf",
"optiga",
"protobuf",
"smp",
"touch",
"translations",
"ui",
@ -141,6 +145,10 @@ version = "0.3.0"
default-features = false
features = ["libm"]
[dependencies.minicbor]
version = "1.0.0"
default-features = false
# Build dependencies

8
core/embed/rust/build.rs
View File

@ -39,6 +39,7 @@ const DEFAULT_BINDGEN_MACROS_COMMON: &[&str] = &[
"-I../io/button/inc",
"-I../io/display/inc",
"-I../io/haptic/inc",
"-I../io/nrf/inc",
"-I../io/touch/inc",
"-I../io/rgb_led/inc",
"-I../io/usb/inc",
@ -46,6 +47,7 @@ const DEFAULT_BINDGEN_MACROS_COMMON: &[&str] = &[
"-I../sys/time/inc",
"-I../sys/task/inc",
"-I../sys/power_manager/inc",
"-I../sys/irq/inc",
"-I../util/flash/inc",
"-I../util/translations/inc",
"-I../models",
@ -56,6 +58,7 @@ const DEFAULT_BINDGEN_MACROS_COMMON: &[&str] = &[
"-DUSE_RGB_LED",
"-DUSE_BLE",
"-DUSE_POWER_MANAGER",
"-DUSE_NRF",
"-DUSE_HW_JPEG_DECODER",
];
@ -449,6 +452,11 @@ fn generate_trezorhal_bindings() {
.allowlist_type("pm_event_t")
.allowlist_function("pm_get_events")
.allowlist_function("pm_get_state")
// irq
.allowlist_function("irq_lock_fn")
.allowlist_function("irq_unlock_fn")
// nrf
.allowlist_function("nrf_send_uart_data")
// c_layout
.allowlist_type("c_layout_t");

12
core/embed/rust/rust_smp.h Normal file
View File

@ -0,0 +1,12 @@
#pragma once
#include <trezor_types.h>
bool smp_echo(const char* text, uint8_t text_len);
void smp_reset(void);
void smp_process_rx_byte(uint8_t byte);
bool smp_upload_app_image(const uint8_t* data, size_t len,
const uint8_t* image_hash, size_t image_hash_len);

2
core/embed/rust/rust_ui_common.h
View File

@ -5,6 +5,8 @@ void display_rsod_rust(const char* title, const char* message,
void screen_boot_stage_2(bool fade_in);
void screen_update(void);
void display_image(int16_t x, int16_t y, const uint8_t* data, uint32_t datalen);
void display_icon(int16_t x, int16_t y, const uint8_t* data, uint32_t datalen,
uint16_t fg_color, uint16_t bg_color);

2
core/embed/rust/src/lib.rs
View File

@ -44,6 +44,8 @@ mod trezorhal;
#[cfg(feature = "ui")]
pub mod ui;
#[cfg(feature = "smp")]
pub mod smp;
pub mod util;

33
core/embed/rust/src/smp/api.rs Normal file
View File

@ -0,0 +1,33 @@
use super::{echo, process_rx_byte, reset, upload};
use crate::util::from_c_array;
#[no_mangle]
extern "C" fn smp_echo(text: *const cty::c_char, text_len: u8) -> bool {
let text = unwrap!(unsafe { from_c_array(text, text_len as usize) });
echo::send(text)
}
#[no_mangle]
extern "C" fn smp_reset() {
reset::send();
}
#[no_mangle]
extern "C" fn smp_upload_app_image(
data: *const cty::uint8_t,
len: cty::size_t,
image_hash: *const cty::uint8_t,
image_hash_len: cty::size_t,
) -> bool {
let data_slice = unsafe { core::slice::from_raw_parts(data, len) };
let hash_slice = unsafe { core::slice::from_raw_parts(image_hash, image_hash_len) };
upload::upload_image(data_slice, hash_slice)
}
#[no_mangle]
extern "C" fn smp_process_rx_byte(byte: u8) {
process_rx_byte(byte)
}

166
core/embed/rust/src/smp/base64.rs Normal file
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@ -0,0 +1,166 @@
/// Provides Base64 encoding and decoding in a `no_std` environment.
///
/// # Errors
/// - `OutputBufferTooSmall` if the provided output buffer is too short.
/// - `InvalidLength` if the input length is not a multiple of 4 for decoding.
/// - `InvalidCharacter` if an invalid Base64 character is encountered during
/// decoding.
#[derive(Debug)]
pub enum Base64Error {
OutputBufferTooSmall,
InvalidLength,
InvalidCharacter,
}
/// Base64 encoding table
static B64_TABLE: [u8; 64] = *b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
/// Table for calculating padding bytes (0, 2, 1) based on input length mod 3
static MOD_TABLE: [usize; 3] = [0, 2, 1];
/// Encodes `input` bytes into Base64, writing into `output`.
/// Returns the number of bytes written on success.
pub fn base64_encode(input: &[u8], output: &mut [u8]) -> Result<usize, Base64Error> {
let len = input.len();
let output_len = 4 * len.div_ceil(3);
if output.len() < output_len {
return Err(Base64Error::OutputBufferTooSmall);
}
let mut i = 0;
let mut j = 0;
while i < len {
let a = input[i];
let b = if i + 1 < len { input[i + 1] } else { 0 };
let c = if i + 2 < len { input[i + 2] } else { 0 };
i += 3;
let triple = ((a as u32) << 16) | ((b as u32) << 8) | (c as u32);
output[j] = B64_TABLE[((triple >> 18) & 0x3F) as usize];
output[j + 1] = B64_TABLE[((triple >> 12) & 0x3F) as usize];
output[j + 2] = B64_TABLE[((triple >> 6) & 0x3F) as usize];
output[j + 3] = B64_TABLE[(triple & 0x3F) as usize];
j += 4;
}
// Apply padding
for pad in 0..MOD_TABLE[len % 3] {
output[output_len - 1 - pad] = b'=';
}
Ok(output_len)
}
/// Maps a Base64 character to its 6-bit value.
fn base64_char_value(c: u8) -> Option<u8> {
match c {
b'A'..=b'Z' => Some(c - b'A'),
b'a'..=b'z' => Some(c - b'a' + 26),
b'0'..=b'9' => Some(c - b'0' + 52),
b'+' => Some(62),
b'/' => Some(63),
_ => None,
}
}
/// Decodes Base64 `input` bytes into raw bytes, writing into `output`.
/// Returns the number of bytes written on success.
pub fn base64_decode(input: &[u8], output: &mut [u8]) -> Result<usize, Base64Error> {
let len = input.len();
if len % 4 != 0 {
return Err(Base64Error::InvalidLength);
}
// Count padding '=' bytes
let mut padding = 0;
if len >= 2 {
if input[len - 1] == b'=' {
padding += 1;
}
if input[len - 2] == b'=' {
padding += 1;
}
}
let decoded_len = (len / 4) * 3 - padding;
if output.len() < decoded_len {
return Err(Base64Error::OutputBufferTooSmall);
}
let mut i = 0;
let mut j = 0;
while i < len {
let v1 = base64_char_value(input[i]).ok_or(Base64Error::InvalidCharacter)? as u32;
let v2 = base64_char_value(input[i + 1]).ok_or(Base64Error::InvalidCharacter)? as u32;
let v3 = if input[i + 2] == b'=' {
0
} else {
base64_char_value(input[i + 2]).ok_or(Base64Error::InvalidCharacter)? as u32
};
let v4 = if input[i + 3] == b'=' {
0
} else {
base64_char_value(input[i + 3]).ok_or(Base64Error::InvalidCharacter)? as u32
};
i += 4;
let triple = (v1 << 18) | (v2 << 12) | (v3 << 6) | v4;
output[j] = ((triple >> 16) & 0xFF) as u8;
j += 1;
if input[i - 2] != b'=' {
output[j] = ((triple >> 8) & 0xFF) as u8;
j += 1;
}
if input[i - 1] != b'=' {
output[j] = (triple & 0xFF) as u8;
j += 1;
}
}
Ok(decoded_len)
}
// Testing uses std; keeps `no_std` for library code.
#[cfg(test)]
extern crate std;
#[cfg(test)]
mod tests {
use super::*;
use std::vec::Vec;
#[test]
fn test_encode_decode() {
let tests: [(&[u8], &[u8]); 7] = [
(b"", b""),
(b"f", b"Zg=="),
(b"fo", b"Zm8="),
(b"foo", b"Zm9v"),
(b"foob", b"Zm9vYg=="),
(b"fooba", b"Zm9vYmE="),
(b"foobar", b"Zm9vYmFy"),
];
for &(input, expected) in &tests {
let mut enc_buf = [0u8; 16];
let len = base64_encode(input, &mut enc_buf).unwrap();
assert_eq!(&enc_buf[..len], expected);
let mut dec_buf = [0u8; 16];
let dec_len = base64_decode(&enc_buf[..len], &mut dec_buf).unwrap();
assert_eq!(&dec_buf[..dec_len], input);
}
}
#[test]
fn test_invalid_decode() {
let mut buf = [0u8; 16];
assert!(matches!(
base64_decode(b"abc", &mut buf),
Err(Base64Error::InvalidLength)
));
assert!(matches!(
base64_decode(b"!!!!", &mut buf),
Err(Base64Error::InvalidCharacter)
));
}
}

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/// Compute CRC-16-ITU-T over `data`, starting from `seed`.
pub fn crc16_itu_t(mut seed: u16, data: &[u8]) -> u16 {
for &byte in data {
// swap high/low byte:
seed = seed.rotate_left(8);
// mix in next input byte
seed ^= byte as u16;
// apply the ITU-T polynomial bitwise mix
seed ^= (seed & 0x00FF) >> 4;
seed ^= seed << 12;
seed ^= (seed & 0x00FF) << 5;
}
seed
}

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use super::{
receiver_acquire, send_request, wait_for_response, MsgType, SmpBuffer, SmpHeader,
SMP_CMD_ID_ECHO, SMP_GROUP_OS, SMP_HEADER_SIZE, SMP_OP_READ,
};
use crate::time::Duration;
use minicbor::{data::Type, decode, Decoder, Encoder};
pub fn send(text: &str) -> bool {
let mut cbor_data = [0u8; 64];
let mut data = [0u8; 64];
let mut buffer = [0u8; 64];
let mut writer = SmpBuffer::new(&mut cbor_data);
let mut enc = Encoder::new(&mut writer);
unwrap!(enc.map(1));
unwrap!(enc.str("d"));
unwrap!(enc.str(text));
unwrap!(receiver_acquire());
let data_len = writer.bytes_written();
let header = SmpHeader::new(SMP_OP_READ, data_len, SMP_GROUP_OS, 0, SMP_CMD_ID_ECHO).to_bytes();
data[..SMP_HEADER_SIZE].copy_from_slice(&header);
data[SMP_HEADER_SIZE..SMP_HEADER_SIZE + data_len].copy_from_slice(&cbor_data[..data_len]);
send_request(&mut data[..SMP_HEADER_SIZE + data_len], &mut buffer);
let mut resp_buffer = [0u8; 64];
if wait_for_response(MsgType::Echo, &mut resp_buffer, Duration::from_millis(100)).is_ok() {
let echo_msg = process_msg(&resp_buffer);
return if let Ok(msg) = echo_msg {
msg == text
} else {
false
};
}
false
}
pub fn process_msg(buf: &[u8]) -> Result<&str, decode::Error> {
let mut dec = Decoder::new(buf);
match dec.map()? {
Some(n) => {
// definite-length: iterate exactly n times
for _ in 0..n {
let key = dec.str()?;
let val = dec.str()?;
if key == "r" {
return Ok(val);
}
}
}
None => {
// indefinite-length: keep reading until we hit the "break"
loop {
// peek at the next major type
if let Type::Break = dec.datatype()? {
dec.skip()?; // consume the break
break;
}
let key = dec.str()?;
let val = dec.str()?;
if key == "r" {
return Ok(val);
}
}
}
}
Err(decode::Error::message("key \"r\" not found"))
}

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mod api;
mod base64;
mod crc16;
mod echo;
mod reset;
mod upload;
use crate::{
time::{Duration, Instant},
trezorhal::{
irq::{irq_lock, irq_unlock},
nrf::send_data,
},
};
use base64::{base64_decode, base64_encode};
use core::{cell::UnsafeCell, convert::Infallible};
use crc16::crc16_itu_t;
use minicbor::encode::write::Write;
pub const SMP_HEADER_SIZE: usize = 8;
pub const SMP_GROUP_OS: u16 = 0;
pub const SMP_GROUP_IMAGE: u16 = 1;
pub const SMP_CMD_ID_ECHO: u8 = 0;
pub const SMP_CMD_ID_RESET: u8 = 5;
pub const SMP_CMD_ID_IMAGE_UPLOAD: u8 = 1;
pub const SMP_OP_READ: u8 = 0;
pub const SMP_OP_READ_RSP: u8 = 1;
pub const SMP_OP_WRITE: u8 = 2;
pub const SMP_OP_WRITE_RSP: u8 = 3;
const MSG_HEADER_SIZE: usize = 2;
const MSG_FOOTER_SIZE: usize = 2;
const FRAME_HEADER_SIZE: usize = 2;
const FRAME_FOOTER_SIZE: usize = 1; // newline
// Frame sizing
const BOOT_SERIAL_FRAME_MTU_BIN: usize = 93;
const BOOT_SERIAL_FRAME_MTU: usize = 124;
const BOOT_SERIAL_MAX_MSG_SIZE: usize = 512;
// Frame start bytes
const START_INIT_FRAME_BYTE_0: u8 = 6;
const START_INIT_FRAME_BYTE_1: u8 = 9;
const START_CONT_FRAME_BYTE_0: u8 = 4;
const START_CONT_FRAME_BYTE_1: u8 = 20;
/// ReceiverStorage wraps an UnsafeCell<Option<SmpReceiver>> in a static.
/// SAFETY: We need manual synchronization (irq_lock/irq_unlock) whenever
/// accessing this static. UnsafeCell allows interior mutability, but we must
/// ensure only one context writes at a time.
struct ReceiverStorage(UnsafeCell<Option<SmpReceiver>>);
static SMP_RECEIVER: ReceiverStorage = ReceiverStorage(UnsafeCell::new(None));
/// We assert that it is safe to share `ReceiverStorage` across
/// threads/interrupt contexts because we manually lock interrupts
/// (irq_lock/irq_unlock) around all accesses. SAFETY: If any code touches
/// SMP_RECEIVER without locking IRQ, data races could occur.
unsafe impl Sync for ReceiverStorage {}
#[derive(Debug)]
pub enum SmpError {
Timeout,
WrongMessage,
Busy,
}
pub struct SmpHeader {
op: u8,
_reserved: u8,
len: usize,
group: u16,
seq: u8,
cmd_id: u8,
}
impl SmpHeader {
pub fn new(op: u8, len: usize, group: u16, seq: u8, cmd_id: u8) -> Self {
SmpHeader {
op,
_reserved: 0,
len,
group,
seq,
cmd_id,
}
}
pub fn from_bytes(b: &[u8]) -> Self {
// we assume b.len() >= HEADER_SIZE
let len: u16 = u16::from_be_bytes([b[2], b[3]]);
let group: u16 = u16::from_be_bytes([b[4], b[5]]); // [hi, lo]
SmpHeader {
op: b[0],
_reserved: b[1],
len: len as usize,
group,
seq: b[6],
cmd_id: b[7],
}
}
pub fn to_bytes(&self) -> [u8; SMP_HEADER_SIZE] {
let len_be = (self.len as u16).to_be_bytes(); // [hi, lo]
let group_be = self.group.to_be_bytes(); // [hi, lo]
[
self.op,
self._reserved,
len_be[0],
len_be[1],
group_be[0],
group_be[1],
self.seq,
self.cmd_id,
]
}
}
pub fn encode_request(data: &[u8], out: &mut [u8]) {
let len = data.len();
if out.len() < len + MSG_HEADER_SIZE + MSG_FOOTER_SIZE {
return;
}
// length including CRC (2 bytes) and length field itself
let length_field = (len + MSG_HEADER_SIZE) as u16;
out[0] = (length_field >> 8) as u8;
out[1] = (length_field & 0xFF) as u8;
// copy the payload
out[MSG_HEADER_SIZE..MSG_HEADER_SIZE + len].copy_from_slice(data);
// compute CRC
let crc = crc16_itu_t(0, data);
// append CRC hi/lo
out[len + MSG_HEADER_SIZE] = (crc >> 8) as u8;
out[len + MSG_HEADER_SIZE + 1] = (crc & 0xFF) as u8;
}
pub fn send_request(data: &mut [u8], buffer: &mut [u8]) {
encode_request(data, buffer);
let total = data.len() + MSG_HEADER_SIZE + MSG_FOOTER_SIZE;
let data = &buffer[..total];
// One buffer big enough for header + max‐encoded data + newline
// header = 2 bytes
// base64 of BOOT_SERIAL_FRAME_MTU_BIN fits in BOOT_SERIAL_FRAME_MTU
// newline = 1 byte
let mut buf = [0u8; FRAME_HEADER_SIZE + BOOT_SERIAL_FRAME_MTU + FRAME_FOOTER_SIZE];
let mut init_frame = true;
for chunk in data.chunks(BOOT_SERIAL_FRAME_MTU_BIN) {
// 1) write the two‐byte header
let (b0, b1) = if init_frame {
(START_INIT_FRAME_BYTE_0, START_INIT_FRAME_BYTE_1)
} else {
(START_CONT_FRAME_BYTE_0, START_CONT_FRAME_BYTE_1)
};
buf[0] = b0;
buf[1] = b1;
let enc_len = unwrap!(base64_encode(chunk, &mut buf[FRAME_HEADER_SIZE..]));
// 3) append newline
let total_len = FRAME_HEADER_SIZE + enc_len;
buf[total_len] = b'\n';
// 4) send it out
send_data(&buf[..total_len + FRAME_FOOTER_SIZE]);
init_frame = false;
}
}
/// A simple writer that copies into a `&mut [u8]` and counts bytes written.
pub struct SmpBuffer<'a> {
buf: &'a mut [u8],
written: usize,
}
impl<'a> SmpBuffer<'a> {
/// Wrap your buffer:
pub fn new(buf: &'a mut [u8]) -> Self {
SmpBuffer { buf, written: 0 }
}
/// How many bytes have been written so far?
pub fn bytes_written(&self) -> usize {
self.written
}
/// Get the filled portion of the buffer.
pub fn filled(&self) -> &[u8] {
&self.buf[..self.written]
}
}
impl<'a> Write for SmpBuffer<'a> {
type Error = Infallible;
fn write_all(&mut self, data: &[u8]) -> Result<(), Self::Error> {
let end = self.written + data.len();
// In production you might guard against overflow:
// if end > self.buf.len() { return Err(...); }
self.buf[self.written..end].copy_from_slice(data);
self.written = end;
Ok(())
}
}
#[derive(Copy, Clone, PartialEq)]
pub enum MsgType {
Echo,
ImageUploadResponse,
Unknown,
}
#[derive(Copy, Clone)]
pub struct SmpReceiver {
rx_frame: [u8; BOOT_SERIAL_FRAME_MTU + FRAME_HEADER_SIZE + FRAME_FOOTER_SIZE],
rx_frame_len: usize,
rx_frame_dec: [u8; BOOT_SERIAL_FRAME_MTU + FRAME_HEADER_SIZE + FRAME_FOOTER_SIZE],
rx_msg: [u8; BOOT_SERIAL_MAX_MSG_SIZE],
rx_msg_len: usize,
msg_type: Option<MsgType>,
}
impl SmpReceiver {
pub fn new() -> Self {
Self {
rx_frame: [0; BOOT_SERIAL_FRAME_MTU + FRAME_HEADER_SIZE + FRAME_FOOTER_SIZE],
rx_frame_len: 0,
rx_frame_dec: [0; BOOT_SERIAL_FRAME_MTU + FRAME_HEADER_SIZE + FRAME_FOOTER_SIZE],
rx_msg: [0; BOOT_SERIAL_MAX_MSG_SIZE],
rx_msg_len: 0,
msg_type: None,
}
}
/// Call this for each incoming byte
pub fn process_byte(&mut self, byte: u8) {
if self.msg_type.is_some() {
return;
}
if byte == b'\n' {
// end of a frame
if self.rx_frame_len > 0 {
let frame = &self.rx_frame[..self.rx_frame_len];
// init or continuation?
if frame[0] == START_INIT_FRAME_BYTE_0 && frame[1] == START_INIT_FRAME_BYTE_1 {
self.rx_msg_len = 0;
self.process_frame();
} else if frame[0] == START_CONT_FRAME_BYTE_0
&& frame[1] == START_CONT_FRAME_BYTE_1
&& self.rx_msg_len != 0
{
self.process_frame();
}
}
// reset for next frame
self.rx_frame_len = 0;
} else {
// accumulate into smp_rx_frame[]
if self.rx_frame_len < self.rx_frame.len() {
self.rx_frame[self.rx_frame_len] = byte;
self.rx_frame_len += 1;
}
}
}
/// Handle one decoded frame chunk
fn process_frame(&mut self) {
// Base64‐decode into rx_frame_dec[]
let decode_res =
base64_decode(&self.rx_frame[2..self.rx_frame_len], &mut self.rx_frame_dec);
if let Ok(len) = decode_res {
if len > 0 {
// copy into rx_msg at current offset
let remaining = self.rx_msg.len().saturating_sub(self.rx_msg_len);
let copy_len = len.min(remaining);
self.rx_msg[self.rx_msg_len..self.rx_msg_len + copy_len]
.copy_from_slice(&self.rx_frame_dec[..copy_len]);
let received_len = self.rx_msg_len + len;
// the first two bytes of rx_msg are the length field
let msg_len = ((self.rx_msg[0] as u16) << 8) | (self.rx_msg[1] as u16);
// too long? (received_len - 2) > msg_len
if received_len.saturating_sub(2) > msg_len as usize {
self.rx_msg_len = 0;
return;
}
// advance offset by the *full* decoded length
self.rx_msg_len = received_len;
// complete?
if received_len.saturating_sub(2) == msg_len as usize {
// TODO: CRC check here
self.process_msg(msg_len as _);
}
}
}
}
fn process_msg(self: &mut SmpReceiver, msg_len: usize) {
// hand off [2..2+msg_len] as header+payload
let start = MSG_HEADER_SIZE;
let end = start + msg_len;
let msg = &self.rx_msg[start..end];
// too short?
if msg.len() < SMP_HEADER_SIZE {
return;
}
let hdr = SmpHeader::from_bytes(&msg[..SMP_HEADER_SIZE]);
let group = hdr.group;
let cmd_id = hdr.cmd_id;
match (group, cmd_id) {
(SMP_GROUP_OS, SMP_CMD_ID_ECHO) => {
self.msg_type = Some(MsgType::Echo);
}
(SMP_GROUP_IMAGE, SMP_CMD_ID_IMAGE_UPLOAD) => {
self.msg_type = Some(MsgType::ImageUploadResponse);
}
_ => self.msg_type = Some(MsgType::Unknown),
}
}
}
/// Called from interrupt context.
pub fn process_rx_byte(byte: u8) {
// SAFETY: Called from interrupt context so no concurrency
unsafe {
let opt_ref: &mut Option<SmpReceiver> = &mut *SMP_RECEIVER.0.get();
if let Some(receiver) = opt_ref.as_mut() {
receiver.process_byte(byte);
}
}
}
pub fn receiver_release() {
let key = irq_lock();
// SAFETY: Protected by IRQ lock. Resets Option<SmpReceiver> → None
unsafe {
let opt_ref: &mut Option<SmpReceiver> = &mut *SMP_RECEIVER.0.get();
*opt_ref = None;
}
irq_unlock(key);
}
pub fn receiver_acquire() -> Result<(), SmpError> {
let key = irq_lock();
// SAFETY: Protected by IRQ lock
let already_acquired = unsafe {
let opt_ref: &Option<SmpReceiver> = &*SMP_RECEIVER.0.get();
opt_ref.is_some()
};
if already_acquired {
irq_unlock(key);
return Err(SmpError::Busy);
}
let new_rcv = SmpReceiver::new();
// SAFETY: Protected by IRQ lock
unsafe {
let opt_mut: &mut Option<SmpReceiver> = &mut *SMP_RECEIVER.0.get();
*opt_mut = Some(new_rcv);
}
irq_unlock(key);
Ok(())
}
/// Read message type without removing it.
/// SAFETY: Unsafe because we access static mutable without compile-time borrow
/// checks. Must always be called with IRQ lock held.
unsafe fn receiver_read_msg_type() -> Option<MsgType> {
// SAFETY: Caller must hold lock to avoid races.
let msg_type = unsafe {
let opt_ref: &Option<SmpReceiver> = &*SMP_RECEIVER.0.get();
unwrap!(opt_ref.as_ref().map(|r| r.msg_type))
};
msg_type
}
/// Copy received message payload (excluding header/footer) into `buf`.
/// Returns the payload length on success.
/// SAFETY: Caller must hold IRQ lock, and `buf` must be large enough.
/// Also, `unwrap!` will panic if `opt_ref` is None (i.e., no receiver
/// acquired).
unsafe fn received_read_msg(buf: &mut [u8]) -> Result<usize, SmpError> {
// SAFETY: Caller held lock, so safe to read.
let receiver_ref = unsafe {
let opt_ref: &Option<SmpReceiver> = &*SMP_RECEIVER.0.get();
unwrap!(opt_ref.as_ref(), "Receiver is not initialized")
};
if receiver_ref.rx_msg_len == 0 {
return Err(SmpError::WrongMessage);
}
let data_start = MSG_HEADER_SIZE + SMP_HEADER_SIZE;
let data_end = receiver_ref.rx_msg_len - MSG_FOOTER_SIZE;
let data = &receiver_ref.rx_msg[data_start..data_end];
let data_len = data.len();
if data_len > buf.len() {
fatal_error!("Buffer too small");
}
buf[..data_len].copy_from_slice(data);
Ok(data_len)
}
pub fn wait_for_response(
expected_msg_type: MsgType,
buf: &mut [u8],
timeout: Duration,
) -> Result<usize, SmpError> {
let start = Instant::now();
loop {
let key = irq_lock();
// SAFETY: IRQ locked
let msg_type = unsafe { receiver_read_msg_type() };
irq_unlock(key);
if let Some(msg_type) = msg_type {
if msg_type != expected_msg_type {
return Err(SmpError::WrongMessage);
}
let key = irq_lock();
// SAFETY: IRQ locked, safe to read and clear receiver
let len = unsafe { unwrap!(received_read_msg(buf)) };
irq_unlock(key);
receiver_release();
return Ok(len);
}
if Instant::now().checked_duration_since(start) > Some(timeout) {
// timeout reached
receiver_release();
return Err(SmpError::Timeout);
}
}
}

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use minicbor::Encoder;
use super::{
send_request, SmpBuffer, SmpHeader, SMP_CMD_ID_RESET, SMP_GROUP_OS, SMP_HEADER_SIZE,
SMP_OP_READ,
};
pub fn send() {
let mut cbor_data = [0u8; 64];
let mut data = [0u8; 64];
let mut buffer = [0u8; 64];
let mut writer = SmpBuffer::new(&mut cbor_data);
let mut enc = Encoder::new(&mut writer);
unwrap!(enc.map(0));
let data_len = writer.bytes_written();
let header =
SmpHeader::new(SMP_OP_READ, data_len, SMP_GROUP_OS, 0, SMP_CMD_ID_RESET).to_bytes();
data[..SMP_HEADER_SIZE].copy_from_slice(&header);
data[SMP_HEADER_SIZE..SMP_HEADER_SIZE + data_len].copy_from_slice(&cbor_data[..data_len]);
send_request(&mut data[..SMP_HEADER_SIZE + data_len], &mut buffer);
}

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use super::{
receiver_acquire, send_request, wait_for_response, MsgType, SmpBuffer, SmpHeader,
SMP_CMD_ID_IMAGE_UPLOAD, SMP_GROUP_IMAGE, SMP_HEADER_SIZE, SMP_OP_WRITE,
};
use crate::time::Duration;
use minicbor::Encoder;
const CHUNK_SIZE: usize = 256;
const MAX_PACKET_SIZE: usize = 512;
pub fn upload_image(image_data: &[u8], image_hash: &[u8]) -> bool {
let mut cbor_data = [0u8; MAX_PACKET_SIZE];
let mut data = [0u8; MAX_PACKET_SIZE];
let mut buffer = [0u8; MAX_PACKET_SIZE];
let mut writer = SmpBuffer::new(&mut cbor_data);
let mut enc = Encoder::new(&mut writer);
unwrap!(enc.map(5));
unwrap!(enc.str("image"));
unwrap!(enc.u8(0));
unwrap!(enc.str("len"));
unwrap!(enc.u64(image_data.len() as _));
unwrap!(enc.str("off"));
unwrap!(enc.u8(0));
unwrap!(enc.str("hash"));
unwrap!(enc.bytes(image_hash));
unwrap!(enc.str("data"));
unwrap!(enc.bytes(&image_data[..CHUNK_SIZE]));
let data_len = writer.bytes_written();
unwrap!(receiver_acquire());
let header = SmpHeader::new(
SMP_OP_WRITE,
data_len,
SMP_GROUP_IMAGE,
0,
SMP_CMD_ID_IMAGE_UPLOAD,
)
.to_bytes();
data[..SMP_HEADER_SIZE].copy_from_slice(&header);
data[SMP_HEADER_SIZE..SMP_HEADER_SIZE + data_len].copy_from_slice(&cbor_data[..data_len]);
send_request(&mut data[..SMP_HEADER_SIZE + data_len], &mut buffer);
let mut resp_buffer = [0u8; 64];
if wait_for_response(
MsgType::ImageUploadResponse,
&mut resp_buffer,
Duration::from_millis(100),
)
.is_err()
{
return false;
}
let mut offset = CHUNK_SIZE;
for chunk in image_data.chunks(CHUNK_SIZE).skip(1) {
let mut cbor_data = [0u8; MAX_PACKET_SIZE];
let mut data = [0u8; MAX_PACKET_SIZE];
let mut buffer = [0u8; MAX_PACKET_SIZE];
let mut writer = SmpBuffer::new(&mut cbor_data);
let mut enc = Encoder::new(&mut writer);
unwrap!(enc.map(2));
unwrap!(enc.str("off"));
unwrap!(enc.u32(offset as _));
unwrap!(enc.str("data"));
unwrap!(enc.bytes(chunk));
let data_len = writer.bytes_written();
unwrap!(receiver_acquire());
let header = SmpHeader::new(SMP_OP_WRITE, data_len, SMP_GROUP_IMAGE, 0, 1).to_bytes();
data[..SMP_HEADER_SIZE].copy_from_slice(&header);
data[SMP_HEADER_SIZE..SMP_HEADER_SIZE + data_len].copy_from_slice(&cbor_data[..data_len]);
send_request(&mut data[..SMP_HEADER_SIZE + data_len], &mut buffer);
let mut resp_buffer = [0u8; 64];
if wait_for_response(
MsgType::ImageUploadResponse,
&mut resp_buffer,
Duration::from_millis(100),
)
.is_err()
{
return false;
}
offset += CHUNK_SIZE;
}
true
}

13
core/embed/rust/src/trezorhal/irq.rs Normal file
View File

@ -0,0 +1,13 @@
use super::ffi;
pub use ffi::irq_key_t as IrqKey;
pub fn irq_lock() -> IrqKey {
unsafe { ffi::irq_lock_fn() }
}
pub fn irq_unlock(key: IrqKey) {
unsafe {
ffi::irq_unlock_fn(key);
}
}

7
core/embed/rust/src/trezorhal/nrf.rs Normal file
View File

@ -0,0 +1,7 @@
use super::ffi;
pub fn send_data(data: &[u8]) {
unsafe {
ffi::nrf_send_uart_data(data.as_ptr(), data.len() as _);
}
}

5
core/embed/rust/src/ui/api/common_c.rs
View File

@ -30,3 +30,8 @@ extern "C" fn display_rsod_rust(
extern "C" fn screen_boot_stage_2(fade_in: bool) {
ModelUI::screen_boot_stage_2(fade_in);
}
#[no_mangle]
extern "C" fn screen_update() {
ModelUI::screen_update();
}

9
core/embed/rust/src/ui/layout_bolt/mod.rs
View File

@ -80,6 +80,15 @@ impl CommonUI for UIBolt {
show(&mut frame, fade_in);
}
fn screen_update() {
let mut frame = ErrorScreen::new(
"Update".into(),
"Finishing firmware update".into(),
"Do not turn of your trezor".into(),
);
show(&mut frame, true);
}
#[cfg(feature = "ui_debug_overlay")]
fn render_debug_overlay<'s>(_target: &mut impl shape::Renderer<'s>, _info: DebugOverlay) {
// Not implemented

4
core/embed/rust/src/ui/layout_caesar/mod.rs
View File

@ -35,6 +35,10 @@ impl CommonUI for UICaesar {
screens::screen_boot_stage_2(fade_in);
}
fn screen_update() {
unimplemented!()
}
#[cfg(feature = "ui_debug_overlay")]
fn render_debug_overlay<'s>(_target: &mut impl shape::Renderer<'s>, _info: DebugOverlay) {
// Not implemented

4
core/embed/rust/src/ui/layout_delizia/mod.rs
View File

@ -81,6 +81,10 @@ impl CommonUI for UIDelizia {
screens::screen_boot_stage_2(fade_in);
}
fn screen_update() {
unimplemented!()
}
#[cfg(feature = "ui_debug_overlay")]
fn render_debug_overlay<'s>(target: &mut impl shape::Renderer<'s>, info: DebugOverlay) {
let mut text = ShortString::new();

12
core/embed/rust/src/ui/layout_eckhart/mod.rs
View File

@ -1,4 +1,5 @@
use super::{geometry::Rect, CommonUI};
use crate::ui::layout::simplified::show;
use theme::backlight;
#[cfg(feature = "ui_debug_overlay")]
@ -34,6 +35,8 @@ pub mod ui_firmware;
#[cfg(feature = "prodtest")]
mod prodtest;
use component::ErrorScreen;
pub struct UIEckhart;
impl CommonUI for UIEckhart {
@ -87,6 +90,15 @@ impl CommonUI for UIEckhart {
screens::screen_boot_stage_2(fade_in);
}
fn screen_update() {
let mut frame = ErrorScreen::new(
"Update".into(),
"Finishing firmware update".into(),
"Do not turn of your trezor".into(),
);
show(&mut frame, true);
}
#[cfg(feature = "ui_debug_overlay")]
fn render_debug_overlay<'s>(target: &mut impl shape::Renderer<'s>, info: DebugOverlay) {
let mut text = ShortString::new();

2
core/embed/rust/src/ui/ui_common.rs
View File

@ -44,6 +44,8 @@ pub trait CommonUI {
fn screen_boot_stage_2(fade_in: bool);
fn screen_update();
/// Renders a partially transparent overlay over the screen content
/// using data from the `DebugOverlay` struct.
#[cfg(feature = "ui_debug_overlay")]

5
core/embed/rust/trezorhal.h
View File

@ -7,6 +7,7 @@
#include <io/usb.h>
#include <rtl/secbool.h>
#include <sec/entropy.h>
#include <sys/irq.h>
#include <sys/sysevent.h>
#include <sys/systick.h>
#include <util/flash.h>
@ -22,6 +23,10 @@
#include <io/ble.h>
#endif
#ifdef USE_NRF
#include <io/nrf.h>
#endif
#ifdef USE_BUTTON
#include <io/button.h>
#endif

14
core/embed/sys/irq/inc/sys/irq.h
View File

@ -17,10 +17,8 @@
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef TREZORHAL_IRQ_H
#define TREZORHAL_IRQ_H
#pragma once
#include <trezor_bsp.h>
#include <trezor_types.h>
#ifdef SYSTEM_VIEW
@ -37,6 +35,10 @@
typedef uint32_t irq_key_t;
#ifndef TREZOR_EMULATOR
#include <trezor_bsp.h>
// Checks if interrupts are enabled
#define IS_IRQ_ENABLED(key) (((key) & 1) == 0)
@ -131,4 +133,8 @@ static inline void irq_unlock_ns(irq_key_t key) {
// Lowest priority in the system used by SVC and PENDSV exception handlers
#define IRQ_PRI_LOWEST NVIC_EncodePriority(NVIC_PRIORITYGROUP_4, 15, 0)
#endif // TREZORHAL_IRQ_H
#endif
// functions for rust exposure, same behavior as the macros above
irq_key_t irq_lock_fn(void);
void irq_unlock_fn(irq_key_t key);

26
core/embed/sys/irq/stm32/irq.c Normal file
View File

@ -0,0 +1,26 @@
/*
* 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/>.
*/
#ifdef KERNEL_MODE
#include <sys/irq.h>
irq_key_t irq_lock_fn(void) { return irq_lock(); }
void irq_unlock_fn(irq_key_t key) { irq_unlock(key); }
#endif

3
core/embed/sys/linker/stm32u5g/firmware.ld
View File

@ -46,6 +46,9 @@ SECTIONS {
*(.text*);
. = ALIGN(4);
*(.rodata*);
. = ALIGN(4);
KEEP(*(.nrf_app));
*(.nrf_app*);
. = ALIGN(512);
} >FLASH AT>FLASH

3
core/embed/sys/syscall/inc/sys/syscall_numbers.h
View File

@ -139,6 +139,9 @@ typedef enum {
SYSCALL_BLE_CAN_READ,
SYSCALL_BLE_READ,
SYSCALL_NRF_UPDATE_REQUIRED,
SYSCALL_NRF_UPDATE,
SYSCALL_POWER_MANAGER_SUSPEND,
SYSCALL_POWER_MANAGER_HIBERNATE,
SYSCALL_POWER_MANAGER_GET_STATE,

20
core/embed/sys/syscall/stm32/syscall_dispatch.c
View File

@ -45,6 +45,10 @@
#include <io/ble.h>
#endif
#ifdef USE_NRF
#include <io/nrf.h>
#endif
#ifdef USE_BUTTON
#include <io/button.h>
#endif
@ -741,6 +745,22 @@ __attribute((no_stack_protector)) void syscall_handler(uint32_t *args,
} break;
#endif
#ifdef USE_NRF
case SYSCALL_NRF_UPDATE_REQUIRED: {
const uint8_t *data = (const uint8_t *)args[0];
size_t len = args[1];
args[0] = nrf_update_required__verified(data, len);
} break;
case SYSCALL_NRF_UPDATE: {
const uint8_t *data = (const uint8_t *)args[0];
size_t len = args[1];
args[0] = nrf_update__verified(data, len);
} break;
#endif
#ifdef USE_POWER_MANAGER
case SYSCALL_POWER_MANAGER_SUSPEND: {
args[0] = pm_suspend();

18
core/embed/sys/syscall/stm32/syscall_stubs.c
View File

@ -681,6 +681,24 @@ uint32_t ble_read(uint8_t *data, uint16_t len) {
#endif
#ifdef USE_NRF
// =============================================================================
// nrf.h
// =============================================================================
bool nrf_update_required(const uint8_t *data, size_t len) {
return (bool)syscall_invoke2((uint32_t)data, (uint32_t)len,
SYSCALL_NRF_UPDATE_REQUIRED);
}
bool nrf_update(const uint8_t *data, size_t len) {
return (bool)syscall_invoke2((uint32_t)data, (uint32_t)len,
SYSCALL_NRF_UPDATE);
}
#endif
// =============================================================================
// power_manager.h
// =============================================================================

30
core/embed/sys/syscall/stm32/syscall_verifiers.c
View File

@ -817,6 +817,36 @@ access_violation:
// ---------------------------------------------------------------------
#ifdef USE_NRF
bool nrf_update_required__verified(const uint8_t *data, size_t len) {
if (!probe_read_access(data, len)) {
goto access_violation;
}
return nrf_update_required(data, len);
access_violation:
apptask_access_violation();
return false;
}
bool nrf_update__verified(const uint8_t *data, size_t len) {
if (!probe_read_access(data, len)) {
goto access_violation;
}
return nrf_update(data, len);
access_violation:
apptask_access_violation();
return false;
}
#endif
// ---------------------------------------------------------------------
#ifdef USE_POWER_MANAGER
pm_status_t pm_get_state__verified(pm_state_t *status) {

10
core/embed/sys/syscall/stm32/syscall_verifiers.h
View File

@ -207,6 +207,16 @@ secbool ble_read__verified(uint8_t *data, size_t len);
#endif
// ---------------------------------------------------------------------
#ifdef USE_NRF
#include <io/nrf.h>
bool nrf_update_required__verified(const uint8_t *data, size_t len);
bool nrf_update__verified(const uint8_t *data, size_t len);
#endif
// ---------------------------------------------------------------------
#ifdef USE_POWER_MANAGER

3
core/site_scons/models/T3W1/trezor_t3w1_revA.py
View File

@ -109,8 +109,11 @@ def configure(
defines += [("USE_BLE", "1")]
sources += ["embed/io/nrf/stm32u5/nrf.c"]
sources += ["embed/io/nrf/stm32u5/nrf_test.c"]
sources += ["embed/io/nrf/stm32u5/nrf_update.c"]
sources += ["embed/io/nrf/crc8.c"]
paths += ["embed/io/nrf/inc"]
features_available.append("nrf")
defines += [("USE_NRF", "1")]
sources += [
"vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_uart.c",
"vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_uart_ex.c",

3
core/site_scons/models/T3W1/trezor_t3w1_revB.py
View File

@ -109,8 +109,11 @@ def configure(
defines += [("USE_BLE", "1")]
sources += ["embed/io/nrf/stm32u5/nrf.c"]
sources += ["embed/io/nrf/stm32u5/nrf_test.c"]
sources += ["embed/io/nrf/stm32u5/nrf_update.c"]
sources += ["embed/io/nrf/crc8.c"]
paths += ["embed/io/nrf/inc"]
features_available.append("nrf")
defines += [("USE_NRF", "1")]
sources += [
"vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_uart.c",
"vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_uart_ex.c",

3
core/site_scons/models/T3W1/trezor_t3w1_revC.py
View File

@ -109,8 +109,11 @@ def configure(
defines += [("USE_BLE", "1")]
sources += ["embed/io/nrf/stm32u5/nrf.c"]
sources += ["embed/io/nrf/stm32u5/nrf_test.c"]
sources += ["embed/io/nrf/stm32u5/nrf_update.c"]
sources += ["embed/io/nrf/crc8.c"]
paths += ["embed/io/nrf/inc"]
features_available.append("nrf")
defines += [("USE_NRF", "1")]
sources += [
"vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_uart.c",
"vendor/stm32u5xx_hal_driver/Src/stm32u5xx_hal_uart_ex.c",

1
core/site_scons/models/stm32f4_common.py
View File

@ -71,6 +71,7 @@ def stm32f4_common_files(env, defines, sources, paths):
"embed/sec/secret/stm32f4/secret.c",
"embed/sec/time_estimate/stm32/time_estimate.c",
"embed/sys/dbg/stm32/dbg_printf.c",
"embed/sys/irq/stm32/irq.c",
"embed/sys/linker/linker_utils.c",
"embed/sys/mpu/stm32f4/mpu.c",
"embed/sys/pvd/stm32/pvd.c",

1
core/site_scons/models/stm32u5_common.py
View File

@ -91,6 +91,7 @@ def stm32u5_common_files(env, features_wanted, defines, sources, paths):
"embed/sec/secure_aes/stm32u5/secure_aes_unpriv.c",
"embed/sec/time_estimate/stm32/time_estimate.c",
"embed/sys/dbg/stm32/dbg_printf.c",
"embed/sys/irq/stm32/irq.c",
"embed/sys/linker/linker_utils.c",
"embed/sys/mpu/stm32u5/mpu.c",
"embed/sys/pvd/stm32/pvd.c",

1
core/site_scons/models/unix_common.py
View File

@ -18,6 +18,7 @@ def unix_common_files(env, defines, sources, paths):
"embed/sec/rng/inc",
"embed/sec/monoctr/inc",
"embed/sec/secret/inc",
"embed/sys/irq/inc",
"embed/sys/mpu/inc",
"embed/sys/startup/inc",
"embed/sys/task/inc",

17
core/site_scons/tools.py
View File

@ -118,12 +118,27 @@ def embed_compressed_binary(obj_program, env, section, target_, file, build, sym
def embed_raw_binary(obj_program, env, section, target_, file):
def redefine_sym(suffix):
src = (
"_binary_"
+ file.replace("/", "_").replace(".", "_").replace("-", "_")
+ "_"
+ suffix
)
dest = f"{section}_{suffix}"
return f" --redefine-sym {src}={dest}"
obj_program.extend(
env.Command(
target=target_,
source=file,
action="$OBJCOPY -I binary -O elf32-littlearm -B arm"
f" --rename-section .data=.{section}" + " $SOURCE $TARGET",
f" --rename-section .data=.{section}"
+ redefine_sym("start")
+ redefine_sym("end")
+ redefine_sym("size")
+ " $SOURCE $TARGET",
)
)