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bootloader: refactor calculate fingerprint part (not issue button request if brand new firmware)

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This commit is contained in:
Pavol Rusnak 2017-07-25 17:24:40 +02:00
parent 4e58befe5d
commit cb020cb1d8
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 11 additions and 10 deletions
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15
bootloader/usb.c
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@ -314,7 +314,6 @@ static void hid_rx_callback(usbd_device *dev, uint8_t ep)
static uint8_t buf[64] __attribute__((aligned(4)));
static uint8_t towrite[4] __attribute__((aligned(4)));
static int wi;
static SHA256_CTX ctx;
if ( usbd_ep_read_packet(dev, ENDPOINT_ADDRESS_OUT, buf, 64) != 64) return;
@ -477,7 +476,6 @@ static void hid_rx_callback(usbd_device *dev, uint8_t ep)
layoutDialog(&bmp_icon_error, NULL, NULL, NULL, "Firmware is too big.", NULL, "Get official firmware", "from trezor.io/start", NULL, NULL);
return;
}
sha256_Init(&ctx);
flash_state = STATE_FLASHING;
flash_pos = 0;
wi = 0;
@ -530,21 +528,24 @@ static void hid_rx_callback(usbd_device *dev, uint8_t ep)
flash_lock();
// flashing done
if (flash_pos == flash_len) {
sha256_Update(&ctx, (unsigned char *)FLASH_APP_START, flash_len - FLASH_META_DESC_LEN);
flash_state = STATE_CHECK;
if (!brand_new_firmware) {
send_msg_buttonrequest_firmwarecheck(dev);
}
return;
}
} else {
return;
}
}
if (flash_state == STATE_CHECK) {
if (!brand_new_firmware) {
if (msg_id != 0x001B) { // ButtonAck message (id 27)
return;
}
uint8_t hash[32];
sha256_Final(&ctx, hash);
if (!brand_new_firmware) {
sha256_Raw((unsigned char *)FLASH_APP_START, flash_len - FLASH_META_DESC_LEN, hash);
layoutFirmwareHash(hash);
do {
delay(100000);