mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-24 07:18:09 +00:00
b0e0280465
[no changelog]
685 lines
22 KiB
C
685 lines
22 KiB
C
/*
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* This file is part of the Trezor project, https://trezor.io/
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*
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* Copyright (c) SatoshiLabs
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <string.h>
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#include <pb.h>
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#include <pb_decode.h>
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#include <pb_encode.h>
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#include "messages.pb.h"
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#include "common.h"
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#include "flash.h"
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#include "image.h"
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#include "secbool.h"
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#include "usb.h"
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#include "version.h"
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#include "bootui.h"
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#include "messages.h"
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#include "memzero.h"
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#define MSG_HEADER1_LEN 9
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#define MSG_HEADER2_LEN 1
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secbool msg_parse_header(const uint8_t *buf, uint16_t *msg_id,
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uint32_t *msg_size) {
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if (buf[0] != '?' || buf[1] != '#' || buf[2] != '#') {
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return secfalse;
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}
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*msg_id = (buf[3] << 8) + buf[4];
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*msg_size = (buf[5] << 24) + (buf[6] << 16) + (buf[7] << 8) + buf[8];
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return sectrue;
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}
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typedef struct {
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uint8_t iface_num;
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uint8_t packet_index;
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uint8_t packet_pos;
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uint8_t buf[USB_PACKET_SIZE];
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} usb_write_state;
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/* we don't use secbool/sectrue/secfalse here as it is a nanopb api */
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static bool _usb_write(pb_ostream_t *stream, const pb_byte_t *buf,
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size_t count) {
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usb_write_state *state = (usb_write_state *)(stream->state);
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size_t written = 0;
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// while we have data left
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while (written < count) {
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size_t remaining = count - written;
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// if all remaining data fit into our packet
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if (state->packet_pos + remaining <= USB_PACKET_SIZE) {
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// append data from buf to state->buf
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memcpy(state->buf + state->packet_pos, buf + written, remaining);
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// advance position
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state->packet_pos += remaining;
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// and return
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return true;
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} else {
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// append data that fits
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memcpy(state->buf + state->packet_pos, buf + written,
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USB_PACKET_SIZE - state->packet_pos);
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written += USB_PACKET_SIZE - state->packet_pos;
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// send packet
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int r = usb_webusb_write_blocking(state->iface_num, state->buf,
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USB_PACKET_SIZE, USB_TIMEOUT);
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ensure(sectrue * (r == USB_PACKET_SIZE), NULL);
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// prepare new packet
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state->packet_index++;
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memzero(state->buf, USB_PACKET_SIZE);
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state->buf[0] = '?';
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state->packet_pos = MSG_HEADER2_LEN;
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}
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}
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return true;
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}
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static void _usb_write_flush(usb_write_state *state) {
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// if packet is not filled up completely
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if (state->packet_pos < USB_PACKET_SIZE) {
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// pad it with zeroes
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memzero(state->buf + state->packet_pos,
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USB_PACKET_SIZE - state->packet_pos);
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}
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// send packet
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int r = usb_webusb_write_blocking(state->iface_num, state->buf,
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USB_PACKET_SIZE, USB_TIMEOUT);
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ensure(sectrue * (r == USB_PACKET_SIZE), NULL);
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}
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static secbool _send_msg(uint8_t iface_num, uint16_t msg_id,
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const pb_msgdesc_t *fields, const void *msg) {
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// determine message size by serializing it into a dummy stream
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pb_ostream_t sizestream = {.callback = NULL,
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.state = NULL,
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.max_size = SIZE_MAX,
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.bytes_written = 0,
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.errmsg = NULL};
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if (false == pb_encode(&sizestream, fields, msg)) {
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return secfalse;
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}
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const uint32_t msg_size = sizestream.bytes_written;
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usb_write_state state = {
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.iface_num = iface_num,
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.packet_index = 0,
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.packet_pos = MSG_HEADER1_LEN,
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.buf =
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{
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'?',
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'#',
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'#',
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(msg_id >> 8) & 0xFF,
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msg_id & 0xFF,
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(msg_size >> 24) & 0xFF,
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(msg_size >> 16) & 0xFF,
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(msg_size >> 8) & 0xFF,
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msg_size & 0xFF,
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},
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};
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pb_ostream_t stream = {.callback = &_usb_write,
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.state = &state,
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.max_size = SIZE_MAX,
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.bytes_written = 0,
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.errmsg = NULL};
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if (false == pb_encode(&stream, fields, msg)) {
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return secfalse;
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}
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_usb_write_flush(&state);
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return sectrue;
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}
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#define MSG_SEND_INIT(TYPE) TYPE msg_send = TYPE##_init_default
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#define MSG_SEND_ASSIGN_REQUIRED_VALUE(FIELD, VALUE) \
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{ msg_send.FIELD = VALUE; }
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#define MSG_SEND_ASSIGN_VALUE(FIELD, VALUE) \
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{ \
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msg_send.has_##FIELD = true; \
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msg_send.FIELD = VALUE; \
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}
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#define MSG_SEND_ASSIGN_STRING(FIELD, VALUE) \
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{ \
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msg_send.has_##FIELD = true; \
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memzero(msg_send.FIELD, sizeof(msg_send.FIELD)); \
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strncpy(msg_send.FIELD, VALUE, sizeof(msg_send.FIELD) - 1); \
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}
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#define MSG_SEND_ASSIGN_STRING_LEN(FIELD, VALUE, LEN) \
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{ \
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msg_send.has_##FIELD = true; \
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memzero(msg_send.FIELD, sizeof(msg_send.FIELD)); \
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strncpy(msg_send.FIELD, VALUE, MIN(LEN, sizeof(msg_send.FIELD) - 1)); \
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}
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#define MSG_SEND_ASSIGN_BYTES(FIELD, VALUE, LEN) \
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{ \
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msg_send.has_##FIELD = true; \
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memzero(msg_send.FIELD.bytes, sizeof(msg_send.FIELD.bytes)); \
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memcpy(msg_send.FIELD.bytes, VALUE, \
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MIN(LEN, sizeof(msg_send.FIELD.bytes))); \
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msg_send.FIELD.size = MIN(LEN, sizeof(msg_send.FIELD.bytes)); \
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}
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#define MSG_SEND(TYPE) \
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_send_msg(iface_num, MessageType_MessageType_##TYPE, TYPE##_fields, &msg_send)
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typedef struct {
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uint8_t iface_num;
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uint8_t packet_index;
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uint8_t packet_pos;
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uint8_t *buf;
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} usb_read_state;
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static void _usb_webusb_read_retry(uint8_t iface_num, uint8_t *buf) {
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for (int retry = 0;; retry++) {
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int r =
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usb_webusb_read_blocking(iface_num, buf, USB_PACKET_SIZE, USB_TIMEOUT);
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if (r != USB_PACKET_SIZE) { // reading failed
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if (r == 0 && retry < 10) {
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// only timeout => let's try again
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} else {
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// error
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error_shutdown("Error reading", "from USB.", "Try different",
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"USB cable.");
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}
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}
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return; // success
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}
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}
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/* we don't use secbool/sectrue/secfalse here as it is a nanopb api */
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static bool _usb_read(pb_istream_t *stream, uint8_t *buf, size_t count) {
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usb_read_state *state = (usb_read_state *)(stream->state);
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size_t read = 0;
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// while we have data left
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while (read < count) {
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size_t remaining = count - read;
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// if all remaining data fit into our packet
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if (state->packet_pos + remaining <= USB_PACKET_SIZE) {
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// append data from buf to state->buf
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memcpy(buf + read, state->buf + state->packet_pos, remaining);
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// advance position
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state->packet_pos += remaining;
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// and return
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return true;
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} else {
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// append data that fits
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memcpy(buf + read, state->buf + state->packet_pos,
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USB_PACKET_SIZE - state->packet_pos);
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read += USB_PACKET_SIZE - state->packet_pos;
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// read next packet (with retry)
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_usb_webusb_read_retry(state->iface_num, state->buf);
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// prepare next packet
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state->packet_index++;
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state->packet_pos = MSG_HEADER2_LEN;
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}
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}
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return true;
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}
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static void _usb_read_flush(usb_read_state *state) { (void)state; }
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static secbool _recv_msg(uint8_t iface_num, uint32_t msg_size, uint8_t *buf,
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const pb_msgdesc_t *fields, void *msg) {
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usb_read_state state = {.iface_num = iface_num,
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.packet_index = 0,
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.packet_pos = MSG_HEADER1_LEN,
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.buf = buf};
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pb_istream_t stream = {.callback = &_usb_read,
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.state = &state,
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.bytes_left = msg_size,
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.errmsg = NULL};
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if (false == pb_decode_noinit(&stream, fields, msg)) {
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return secfalse;
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}
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_usb_read_flush(&state);
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return sectrue;
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}
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#define MSG_RECV_INIT(TYPE) TYPE msg_recv = TYPE##_init_default
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#define MSG_RECV_CALLBACK(FIELD, CALLBACK, ARGUMENT) \
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{ \
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msg_recv.FIELD.funcs.decode = &CALLBACK; \
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msg_recv.FIELD.arg = (void *)ARGUMENT; \
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}
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#define MSG_RECV(TYPE) \
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_recv_msg(iface_num, msg_size, buf, TYPE##_fields, &msg_recv)
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void send_user_abort(uint8_t iface_num, const char *msg) {
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MSG_SEND_INIT(Failure);
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MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_ActionCancelled);
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MSG_SEND_ASSIGN_STRING(message, msg);
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MSG_SEND(Failure);
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}
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static void send_msg_features(uint8_t iface_num,
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const vendor_header *const vhdr,
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const image_header *const hdr) {
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MSG_SEND_INIT(Features);
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MSG_SEND_ASSIGN_STRING(vendor, "trezor.io");
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MSG_SEND_ASSIGN_REQUIRED_VALUE(major_version, VERSION_MAJOR);
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MSG_SEND_ASSIGN_REQUIRED_VALUE(minor_version, VERSION_MINOR);
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MSG_SEND_ASSIGN_REQUIRED_VALUE(patch_version, VERSION_PATCH);
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MSG_SEND_ASSIGN_VALUE(bootloader_mode, true);
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MSG_SEND_ASSIGN_STRING(model, "T");
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if (vhdr && hdr) {
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MSG_SEND_ASSIGN_VALUE(firmware_present, true);
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MSG_SEND_ASSIGN_VALUE(fw_major, (hdr->version & 0xFF));
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MSG_SEND_ASSIGN_VALUE(fw_minor, ((hdr->version >> 8) & 0xFF));
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MSG_SEND_ASSIGN_VALUE(fw_patch, ((hdr->version >> 16) & 0xFF));
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MSG_SEND_ASSIGN_STRING_LEN(fw_vendor, vhdr->vstr, vhdr->vstr_len);
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} else {
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MSG_SEND_ASSIGN_VALUE(firmware_present, false);
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}
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MSG_SEND(Features);
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}
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void process_msg_Initialize(uint8_t iface_num, uint32_t msg_size, uint8_t *buf,
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const vendor_header *const vhdr,
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const image_header *const hdr) {
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MSG_RECV_INIT(Initialize);
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MSG_RECV(Initialize);
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send_msg_features(iface_num, vhdr, hdr);
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}
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void process_msg_GetFeatures(uint8_t iface_num, uint32_t msg_size, uint8_t *buf,
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const vendor_header *const vhdr,
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const image_header *const hdr) {
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MSG_RECV_INIT(GetFeatures);
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MSG_RECV(GetFeatures);
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send_msg_features(iface_num, vhdr, hdr);
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}
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void process_msg_Ping(uint8_t iface_num, uint32_t msg_size, uint8_t *buf) {
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MSG_RECV_INIT(Ping);
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MSG_RECV(Ping);
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MSG_SEND_INIT(Success);
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MSG_SEND_ASSIGN_STRING(message, msg_recv.message);
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MSG_SEND(Success);
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}
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static uint32_t firmware_remaining, firmware_block, chunk_requested;
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void process_msg_FirmwareErase(uint8_t iface_num, uint32_t msg_size,
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uint8_t *buf) {
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firmware_remaining = 0;
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firmware_block = 0;
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chunk_requested = 0;
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MSG_RECV_INIT(FirmwareErase);
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MSG_RECV(FirmwareErase);
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firmware_remaining = msg_recv.has_length ? msg_recv.length : 0;
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if ((firmware_remaining > 0) &&
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((firmware_remaining % sizeof(uint32_t)) == 0) &&
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(firmware_remaining <= (FIRMWARE_SECTORS_COUNT * IMAGE_CHUNK_SIZE))) {
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// request new firmware
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chunk_requested = (firmware_remaining > IMAGE_INIT_CHUNK_SIZE)
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? IMAGE_INIT_CHUNK_SIZE
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: firmware_remaining;
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MSG_SEND_INIT(FirmwareRequest);
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MSG_SEND_ASSIGN_VALUE(offset, 0);
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MSG_SEND_ASSIGN_VALUE(length, chunk_requested);
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MSG_SEND(FirmwareRequest);
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} else {
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// invalid firmware size
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MSG_SEND_INIT(Failure);
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MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_ProcessError);
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MSG_SEND_ASSIGN_STRING(message, "Wrong firmware size");
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MSG_SEND(Failure);
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}
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}
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static uint32_t chunk_size = 0;
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// SRAM is unused, so we can use it for chunk buffer
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uint8_t *const chunk_buffer = (uint8_t *const)0x20000000;
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/* we don't use secbool/sectrue/secfalse here as it is a nanopb api */
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static bool _read_payload(pb_istream_t *stream, const pb_field_t *field,
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void **arg) {
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#define BUFSIZE 32768
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uint32_t offset = (uint32_t)(*arg);
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if (stream->bytes_left > IMAGE_CHUNK_SIZE) {
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chunk_size = 0;
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return false;
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}
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if (offset == 0) {
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// clear chunk buffer
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memset(chunk_buffer, 0xFF, IMAGE_CHUNK_SIZE);
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}
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uint32_t chunk_written = offset;
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chunk_size = offset + stream->bytes_left;
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while (stream->bytes_left) {
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// update loader but skip first block
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if (firmware_block > 0) {
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ui_screen_install_progress_upload(
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250 + 750 * (firmware_block * IMAGE_CHUNK_SIZE + chunk_written) /
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(firmware_block * IMAGE_CHUNK_SIZE + firmware_remaining));
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}
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// read data
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if (!pb_read(
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stream, (pb_byte_t *)(chunk_buffer + chunk_written),
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(stream->bytes_left > BUFSIZE) ? BUFSIZE : stream->bytes_left)) {
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chunk_size = 0;
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return false;
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}
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chunk_written += BUFSIZE;
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}
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return true;
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}
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secbool load_vendor_header_keys(const uint8_t *const data,
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vendor_header *const vhdr);
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static int version_compare(uint32_t vera, uint32_t verb) {
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int a, b;
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a = vera & 0xFF;
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b = verb & 0xFF;
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if (a != b) return a - b;
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a = (vera >> 8) & 0xFF;
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b = (verb >> 8) & 0xFF;
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if (a != b) return a - b;
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a = (vera >> 16) & 0xFF;
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b = (verb >> 16) & 0xFF;
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if (a != b) return a - b;
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a = (vera >> 24) & 0xFF;
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b = (verb >> 24) & 0xFF;
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return a - b;
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}
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static void detect_installation(vendor_header *current_vhdr,
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image_header *current_hdr,
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const vendor_header *const new_vhdr,
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const image_header *const new_hdr,
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secbool *is_new, secbool *is_upgrade,
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secbool *is_downgrade_wipe) {
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*is_new = secfalse;
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*is_upgrade = secfalse;
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*is_downgrade_wipe = secfalse;
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if (sectrue !=
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load_vendor_header_keys((const uint8_t *)FIRMWARE_START, current_vhdr)) {
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*is_new = sectrue;
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return;
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}
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if (sectrue !=
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load_image_header((const uint8_t *)FIRMWARE_START + current_vhdr->hdrlen,
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FIRMWARE_IMAGE_MAGIC, FIRMWARE_IMAGE_MAXSIZE,
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current_vhdr->vsig_m, current_vhdr->vsig_n,
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current_vhdr->vpub, current_hdr)) {
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*is_new = sectrue;
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return;
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}
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uint8_t hash1[32], hash2[32];
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vendor_header_hash(new_vhdr, hash1);
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vendor_header_hash(current_vhdr, hash2);
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if (0 != memcmp(hash1, hash2, 32)) {
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return;
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}
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if (version_compare(new_hdr->version, current_hdr->fix_version) < 0) {
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*is_downgrade_wipe = sectrue;
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return;
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}
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*is_upgrade = sectrue;
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}
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static int firmware_upload_chunk_retry = FIRMWARE_UPLOAD_CHUNK_RETRY_COUNT;
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static uint32_t headers_offset = 0;
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static uint32_t read_offset = 0;
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int process_msg_FirmwareUpload(uint8_t iface_num, uint32_t msg_size,
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uint8_t *buf) {
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MSG_RECV_INIT(FirmwareUpload);
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MSG_RECV_CALLBACK(payload, _read_payload, read_offset);
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const secbool r = MSG_RECV(FirmwareUpload);
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if (sectrue != r || chunk_size != (chunk_requested + read_offset)) {
|
|
MSG_SEND_INIT(Failure);
|
|
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_ProcessError);
|
|
MSG_SEND_ASSIGN_STRING(message, "Invalid chunk size");
|
|
MSG_SEND(Failure);
|
|
return -1;
|
|
}
|
|
|
|
static image_header hdr;
|
|
secbool is_upgrade = secfalse;
|
|
secbool is_downgrade_wipe = secfalse;
|
|
|
|
if (firmware_block == 0) {
|
|
if (headers_offset == 0) {
|
|
// first block and headers are not yet parsed
|
|
vendor_header vhdr;
|
|
if (sectrue != load_vendor_header_keys(chunk_buffer, &vhdr)) {
|
|
MSG_SEND_INIT(Failure);
|
|
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_ProcessError);
|
|
MSG_SEND_ASSIGN_STRING(message, "Invalid vendor header");
|
|
MSG_SEND(Failure);
|
|
return -2;
|
|
}
|
|
if (sectrue != load_image_header(chunk_buffer + vhdr.hdrlen,
|
|
FIRMWARE_IMAGE_MAGIC,
|
|
FIRMWARE_IMAGE_MAXSIZE, vhdr.vsig_m,
|
|
vhdr.vsig_n, vhdr.vpub, &hdr)) {
|
|
MSG_SEND_INIT(Failure);
|
|
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_ProcessError);
|
|
MSG_SEND_ASSIGN_STRING(message, "Invalid firmware header");
|
|
MSG_SEND(Failure);
|
|
return -3;
|
|
}
|
|
|
|
vendor_header current_vhdr;
|
|
image_header current_hdr;
|
|
secbool is_new = secfalse;
|
|
detect_installation(¤t_vhdr, ¤t_hdr, &vhdr, &hdr, &is_new,
|
|
&is_upgrade, &is_downgrade_wipe);
|
|
|
|
int response = INPUT_CANCEL;
|
|
if (sectrue == is_new) {
|
|
// new installation - auto confirm
|
|
response = INPUT_CONFIRM;
|
|
} else if (sectrue == is_upgrade) {
|
|
// firmware upgrade
|
|
ui_fadeout();
|
|
ui_screen_install_confirm_upgrade(&vhdr, &hdr);
|
|
ui_fadein();
|
|
response = ui_user_input(INPUT_CONFIRM | INPUT_CANCEL);
|
|
} else {
|
|
// downgrade with wipe or new firmware vendor
|
|
ui_fadeout();
|
|
ui_screen_install_confirm_newvendor_or_downgrade_wipe(
|
|
&vhdr, &hdr, is_downgrade_wipe);
|
|
ui_fadein();
|
|
response = ui_user_input(INPUT_CONFIRM | INPUT_CANCEL);
|
|
}
|
|
|
|
if (INPUT_CANCEL == response) {
|
|
ui_fadeout();
|
|
ui_screen_firmware_info(¤t_vhdr, ¤t_hdr);
|
|
ui_fadein();
|
|
send_user_abort(iface_num, "Firmware install cancelled");
|
|
return -4;
|
|
}
|
|
|
|
headers_offset = IMAGE_HEADER_SIZE + vhdr.hdrlen;
|
|
read_offset = IMAGE_INIT_CHUNK_SIZE;
|
|
|
|
// request the rest of the first chunk
|
|
MSG_SEND_INIT(FirmwareRequest);
|
|
chunk_requested = IMAGE_CHUNK_SIZE - read_offset;
|
|
MSG_SEND_ASSIGN_VALUE(offset, read_offset);
|
|
MSG_SEND_ASSIGN_VALUE(length, chunk_requested);
|
|
MSG_SEND(FirmwareRequest);
|
|
|
|
firmware_remaining -= read_offset;
|
|
return (int)firmware_remaining;
|
|
} else {
|
|
// first block with the headers parsed -> the first chunk is now complete
|
|
read_offset = 0;
|
|
|
|
ui_fadeout();
|
|
ui_screen_install_start();
|
|
ui_fadein();
|
|
|
|
// if firmware is not upgrade, erase storage
|
|
if (sectrue != is_upgrade) {
|
|
ensure(
|
|
flash_erase_sectors(STORAGE_SECTORS, STORAGE_SECTORS_COUNT, NULL),
|
|
NULL);
|
|
}
|
|
ensure(flash_erase_sectors(FIRMWARE_SECTORS, FIRMWARE_SECTORS_COUNT,
|
|
ui_screen_install_progress_erase),
|
|
NULL);
|
|
}
|
|
}
|
|
|
|
// should not happen, but double-check
|
|
if (firmware_block >= FIRMWARE_SECTORS_COUNT) {
|
|
MSG_SEND_INIT(Failure);
|
|
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_ProcessError);
|
|
MSG_SEND_ASSIGN_STRING(message, "Firmware too big");
|
|
MSG_SEND(Failure);
|
|
return -5;
|
|
}
|
|
|
|
if (sectrue != check_single_hash(hdr.hashes + firmware_block * 32,
|
|
chunk_buffer + headers_offset,
|
|
chunk_size - headers_offset)) {
|
|
if (firmware_upload_chunk_retry > 0) {
|
|
--firmware_upload_chunk_retry;
|
|
MSG_SEND_INIT(FirmwareRequest);
|
|
MSG_SEND_ASSIGN_VALUE(offset, firmware_block * IMAGE_CHUNK_SIZE);
|
|
MSG_SEND_ASSIGN_VALUE(length, chunk_requested);
|
|
MSG_SEND(FirmwareRequest);
|
|
return (int)firmware_remaining;
|
|
}
|
|
|
|
MSG_SEND_INIT(Failure);
|
|
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_ProcessError);
|
|
MSG_SEND_ASSIGN_STRING(message, "Invalid chunk hash");
|
|
MSG_SEND(Failure);
|
|
return -6;
|
|
}
|
|
|
|
ensure(flash_unlock_write(), NULL);
|
|
|
|
const uint32_t *const src = (const uint32_t *const)chunk_buffer;
|
|
for (int i = 0; i < chunk_size / sizeof(uint32_t); i++) {
|
|
ensure(flash_write_word(FIRMWARE_SECTORS[firmware_block],
|
|
i * sizeof(uint32_t), src[i]),
|
|
NULL);
|
|
}
|
|
|
|
ensure(flash_lock_write(), NULL);
|
|
|
|
headers_offset = 0;
|
|
firmware_remaining -= chunk_requested;
|
|
firmware_block++;
|
|
firmware_upload_chunk_retry = FIRMWARE_UPLOAD_CHUNK_RETRY_COUNT;
|
|
|
|
if (firmware_remaining > 0) {
|
|
chunk_requested = (firmware_remaining > IMAGE_CHUNK_SIZE)
|
|
? IMAGE_CHUNK_SIZE
|
|
: firmware_remaining;
|
|
MSG_SEND_INIT(FirmwareRequest);
|
|
MSG_SEND_ASSIGN_VALUE(offset, firmware_block * IMAGE_CHUNK_SIZE);
|
|
MSG_SEND_ASSIGN_VALUE(length, chunk_requested);
|
|
MSG_SEND(FirmwareRequest);
|
|
} else {
|
|
MSG_SEND_INIT(Success);
|
|
MSG_SEND(Success);
|
|
}
|
|
return (int)firmware_remaining;
|
|
}
|
|
|
|
int process_msg_WipeDevice(uint8_t iface_num, uint32_t msg_size, uint8_t *buf) {
|
|
static const uint8_t sectors[] = {
|
|
FLASH_SECTOR_STORAGE_1,
|
|
FLASH_SECTOR_STORAGE_2,
|
|
// 3, // skip because of MPU protection
|
|
FLASH_SECTOR_FIRMWARE_START,
|
|
7,
|
|
8,
|
|
9,
|
|
10,
|
|
FLASH_SECTOR_FIRMWARE_END,
|
|
FLASH_SECTOR_UNUSED_START,
|
|
13,
|
|
14,
|
|
// FLASH_SECTOR_UNUSED_END, // skip because of MPU protection
|
|
FLASH_SECTOR_FIRMWARE_EXTRA_START,
|
|
18,
|
|
19,
|
|
20,
|
|
21,
|
|
22,
|
|
FLASH_SECTOR_FIRMWARE_EXTRA_END,
|
|
};
|
|
if (sectrue !=
|
|
flash_erase_sectors(sectors, sizeof(sectors), ui_screen_wipe_progress)) {
|
|
MSG_SEND_INIT(Failure);
|
|
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_ProcessError);
|
|
MSG_SEND_ASSIGN_STRING(message, "Could not erase flash");
|
|
MSG_SEND(Failure);
|
|
return -1;
|
|
} else {
|
|
MSG_SEND_INIT(Success);
|
|
MSG_SEND(Success);
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void process_msg_unknown(uint8_t iface_num, uint32_t msg_size, uint8_t *buf) {
|
|
// consume remaining message
|
|
int remaining_chunks = 0;
|
|
|
|
if (msg_size > (USB_PACKET_SIZE - MSG_HEADER1_LEN)) {
|
|
// calculate how many blocks need to be read to drain the message (rounded
|
|
// up to not leave any behind)
|
|
remaining_chunks = (msg_size - (USB_PACKET_SIZE - MSG_HEADER1_LEN) +
|
|
((USB_PACKET_SIZE - MSG_HEADER2_LEN) - 1)) /
|
|
(USB_PACKET_SIZE - MSG_HEADER2_LEN);
|
|
}
|
|
|
|
for (int i = 0; i < remaining_chunks; i++) {
|
|
// read next packet (with retry)
|
|
_usb_webusb_read_retry(iface_num, buf);
|
|
}
|
|
|
|
MSG_SEND_INIT(Failure);
|
|
MSG_SEND_ASSIGN_VALUE(code, FailureType_Failure_UnexpectedMessage);
|
|
MSG_SEND_ASSIGN_STRING(message, "Unexpected message");
|
|
MSG_SEND(Failure);
|
|
}
|