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trezor-firmware
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trezorhal: refactor erasing sectors

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pull/25/head
Pavol Rusnak 5 years ago
parent cbe8320d96
commit 3d82cca381
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
8 changed files with 59 additions and 42 deletions
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8
embed/boardloader/main.c
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@ -105,9 +105,9 @@ static secbool copy_sdcard(void)
// erase all flash (except boardloader)
static const uint8_t sectors[] = {
3,
FLASH_SECTOR_STORAGE_1,
FLASH_SECTOR_STORAGE_2,
3,
FLASH_SECTOR_BOOTLOADER,
FLASH_SECTOR_FIRMWARE_START,
7,
@ -168,12 +168,8 @@ int main(void)
periph_init();
if (sectrue != flash_configure_option_bytes()) {
static const uint8_t sectors[] = {
FLASH_SECTOR_STORAGE_1,
FLASH_SECTOR_STORAGE_2,
};
// display is not initialized so don't call ensure
secbool r = flash_erase_sectors(sectors, sizeof(sectors), NULL);
secbool r = flash_erase_sectors(STORAGE_SECTORS, STORAGE_SECTORS_COUNT, NULL);
(void)r;
return 2;
}

10
embed/bootloader/main.c
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@ -262,7 +262,7 @@ main_start:
firmware_present = load_image_header((const uint8_t *)(FIRMWARE_START + vhdr.hdrlen), FIRMWARE_IMAGE_MAGIC, FIRMWARE_IMAGE_MAXSIZE, vhdr.vsig_m, vhdr.vsig_n, vhdr.vpub, &hdr);
}
if (sectrue == firmware_present) {
firmware_present = check_image_contents(&hdr, IMAGE_HEADER_SIZE + vhdr.hdrlen, firmware_sectors, FIRMWARE_SECTORS_COUNT);
firmware_present = check_image_contents(&hdr, IMAGE_HEADER_SIZE + vhdr.hdrlen, FIRMWARE_SECTORS, FIRMWARE_SECTORS_COUNT);
}
// start the bootloader if no or broken firmware found ...
@ -286,11 +286,7 @@ main_start:
ui_fadein();
// erase storage
static const uint8_t sectors_storage[] = {
FLASH_SECTOR_STORAGE_1,
FLASH_SECTOR_STORAGE_2,
};
ensure(flash_erase_sectors(sectors_storage, sizeof(sectors_storage), NULL), NULL);
ensure(flash_erase_sectors(STORAGE_SECTORS, STORAGE_SECTORS_COUNT, NULL), NULL);
// and start the usb loop
if (bootloader_usb_loop(NULL, NULL) != sectrue) {
@ -353,7 +349,7 @@ main_start:
"invalid firmware header");
ensure(
check_image_contents(&hdr, IMAGE_HEADER_SIZE + vhdr.hdrlen, firmware_sectors, FIRMWARE_SECTORS_COUNT),
check_image_contents(&hdr, IMAGE_HEADER_SIZE + vhdr.hdrlen, FIRMWARE_SECTORS, FIRMWARE_SECTORS_COUNT),
"invalid firmware hash");
// if all VTRUST flags are unset = ultimate trust => skip the procedure

30
embed/bootloader/messages.c
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@ -39,22 +39,6 @@
#define MSG_HEADER1_LEN 9
#define MSG_HEADER2_LEN 1
const uint8_t firmware_sectors[FIRMWARE_SECTORS_COUNT] = {
FLASH_SECTOR_FIRMWARE_START,
7,
8,
9,
10,
FLASH_SECTOR_FIRMWARE_END,
FLASH_SECTOR_FIRMWARE_EXTRA_START,
18,
19,
20,
21,
22,
FLASH_SECTOR_FIRMWARE_EXTRA_END,
};
secbool msg_parse_header(const uint8_t *buf, uint16_t *msg_id, uint32_t *msg_size)
{
if (buf[0] != '?' || buf[1] != '#' || buf[2] != '#') {
@ -479,13 +463,9 @@ int process_msg_FirmwareUpload(uint8_t iface_num, uint32_t msg_size, uint8_t *bu
// if firmware is not upgrade, erase storage
if (sectrue != is_upgrade) {
static const uint8_t sectors_storage[] = {
FLASH_SECTOR_STORAGE_1,
FLASH_SECTOR_STORAGE_2,
};
ensure(flash_erase_sectors(sectors_storage, sizeof(sectors_storage), NULL), NULL);
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);
ensure(flash_erase_sectors(FIRMWARE_SECTORS, FIRMWARE_SECTORS_COUNT, ui_screen_install_progress_erase), NULL);
firstskip = IMAGE_HEADER_SIZE + vhdr.hdrlen;
}
@ -521,7 +501,7 @@ int process_msg_FirmwareUpload(uint8_t iface_num, uint32_t msg_size, uint8_t *bu
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_write_word(FIRMWARE_SECTORS[firmware_block], i * sizeof(uint32_t), src[i]), NULL);
}
ensure(flash_lock_write(), NULL);
@ -546,9 +526,9 @@ int process_msg_FirmwareUpload(uint8_t iface_num, uint32_t msg_size, uint8_t *bu
int process_msg_WipeDevice(uint8_t iface_num, uint32_t msg_size, uint8_t *buf)
{
static const uint8_t sectors[] = {
3,
FLASH_SECTOR_STORAGE_1,
FLASH_SECTOR_STORAGE_2,
// 3, // skip because of MPU protection
FLASH_SECTOR_FIRMWARE_START,
7,
8,
@ -558,7 +538,7 @@ int process_msg_WipeDevice(uint8_t iface_num, uint32_t msg_size, uint8_t *buf)
FLASH_SECTOR_UNUSED_START,
13,
14,
FLASH_SECTOR_UNUSED_END,
// FLASH_SECTOR_UNUSED_END, // skip because of MPU protection
FLASH_SECTOR_FIRMWARE_EXTRA_START,
18,
19,

1
embed/bootloader/messages.h
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@ -28,7 +28,6 @@
#define USB_PACKET_SIZE 64
#define FIRMWARE_UPLOAD_CHUNK_RETRY_COUNT 2
extern const uint8_t firmware_sectors[FIRMWARE_SECTORS_COUNT];
secbool msg_parse_header(const uint8_t *buf, uint16_t *msg_id, uint32_t *msg_size);

21
embed/trezorhal/flash.c
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@ -54,6 +54,27 @@ static const uint32_t FLASH_SECTOR_TABLE[FLASH_SECTOR_COUNT + 1] = {
[24] = 0x08200000, // last element - not a valid sector
};
const uint8_t FIRMWARE_SECTORS [FIRMWARE_SECTORS_COUNT] = {
FLASH_SECTOR_FIRMWARE_START,
7,
8,
9,
10,
FLASH_SECTOR_FIRMWARE_END,
FLASH_SECTOR_FIRMWARE_EXTRA_START,
18,
19,
20,
21,
22,
FLASH_SECTOR_FIRMWARE_EXTRA_END,
};
const uint8_t STORAGE_SECTORS[STORAGE_SECTORS_COUNT] = {
FLASH_SECTOR_STORAGE_1,
FLASH_SECTOR_STORAGE_2,
};
void flash_init(void)
{
}

7
embed/trezorhal/flash.h
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@ -60,6 +60,13 @@
// 22
#define FLASH_SECTOR_FIRMWARE_EXTRA_END 23
#define BOOTLOADER_SECTORS_COUNT (1)
#define STORAGE_SECTORS_COUNT (2)
#define FIRMWARE_SECTORS_COUNT (6 + 7)
extern const uint8_t STORAGE_SECTORS[STORAGE_SECTORS_COUNT];
extern const uint8_t FIRMWARE_SECTORS[FIRMWARE_SECTORS_COUNT];
// note: FLASH_SR_RDERR is STM32F42xxx and STM32F43xxx specific (STM32F427) (reference RM0090 section 3.7.5)
#ifndef STM32F427xx
#define FLASH_SR_RDERR 0

3
embed/trezorhal/image.h
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@ -27,9 +27,6 @@
#define BOOTLOADER_START 0x08020000
#define FIRMWARE_START 0x08040000
#define BOOTLOADER_SECTORS_COUNT (1)
#define FIRMWARE_SECTORS_COUNT (6 + 7)
#define IMAGE_HEADER_SIZE 0x400
#define IMAGE_SIG_SIZE 65
#define IMAGE_CHUNK_SIZE (128 * 1024)

21
embed/unix/flash.c
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@ -62,6 +62,27 @@ static const uint32_t FLASH_SECTOR_TABLE[FLASH_SECTOR_COUNT + 1] = {
[24] = 0x08200000, // last element - not a valid sector
};
const uint8_t FIRMWARE_SECTORS[FIRMWARE_SECTORS_COUNT] = {
FLASH_SECTOR_FIRMWARE_START,
7,
8,
9,
10,
FLASH_SECTOR_FIRMWARE_END,
FLASH_SECTOR_FIRMWARE_EXTRA_START,
18,
19,
20,
21,
22,
FLASH_SECTOR_FIRMWARE_EXTRA_END,
};
const uint8_t STORAGE_SECTORS[STORAGE_SECTORS_COUNT] = {
FLASH_SECTOR_STORAGE_1,
FLASH_SECTOR_STORAGE_2,
};
static uint8_t *FLASH_BUFFER;
static uint32_t FLASH_SIZE;

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