arno/trezor-firmware
1
0
Fork 0
mirror of https://github.com/trezor/trezor-firmware.git synced 2025-01-10 15:30:55 +00:00
Code Issues Releases Wiki Activity

embed/bootloader: better detection of broken firmware at start

Browse Source
This commit is contained in:
Pavol Rusnak 2018-02-10 17:52:45 +01:00
parent 77568496da
commit 34c6fb987a
No known key found for this signature in database
GPG Key ID: 91F3B339B9A02A3D
1 changed files with 8 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
embed/bootloader/main.c
View File

@ -227,14 +227,20 @@ main_start:
image_header hdr;
secbool firmware_present;
// detect whether the devices contains a firmware
// detect whether the devices contains a valid firmware
firmware_present = load_vendor_header_keys((const uint8_t *)FIRMWARE_START, &vhdr);
if (sectrue == firmware_present) {
firmware_present = check_vendor_keys_lock(&vhdr);
}
if (sectrue == firmware_present) {
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);
}
// start the bootloader if no firmware found ...
// start the bootloader if no or broken firmware found ...
if (firmware_present != sectrue) {
// show intro animation