mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-11-23 07:58:09 +00:00
61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
|
import io
|
||
|
|
import sys
|
||
|
|
from pathlib import Path
|
||
|
|
from trezorlib._internal import firmware_headers
|
||
|
|
from trezorlib.firmware.core import FirmwareHeader, HeaderType
|
||
|
|
|
||
|
|
INFILE = Path(sys.argv[1])
|
||
|
|
DATA = INFILE.read_bytes()
|
||
|
|
|
||
|
|
READER = io.BytesIO(DATA)
|
||
|
|
|
||
|
|
# boardloader is first 3 16kB sectors
|
||
|
|
BOARDLOADER = READER.read(3 * 16 * 1024)
|
||
|
|
|
||
|
|
# following 16kB is unused
|
||
|
|
UNUSED = READER.read(16 * 1024)
|
||
|
|
if all(b == 0 for b in UNUSED):
|
||
|
|
print("Unused space is all zero")
|
||
|
|
elif all(b == 0xFF for b in UNUSED):
|
||
|
|
print("Unused space is all 0xFF")
|
||
|
|
else:
|
||
|
|
print("WARNING: Unused space is noise!!")
|
||
|
|
|
||
|
|
# following 64kB is storage area 1, should be empty
|
||
|
|
STORAGE1 = READER.read(64 * 1024)
|
||
|
|
if all(b == 0 for b in STORAGE1):
|
||
|
|
print("Storage area 1 is all zero")
|
||
|
|
elif all(b == 0xFF for b in STORAGE1):
|
||
|
|
print("Storage area 1 is all 0xFF")
|
||
|
|
else:
|
||
|
|
print("WARNING: Storage area 1 is noise!!")
|
||
|
|
|
||
|
|
# following 128 kB is bootloader
|
||
|
|
BOOTLOADER_SECTOR = READER.read(128 * 1024)
|
||
|
|
BOOTLOADER_HEADER = FirmwareHeader.parse(BOOTLOADER_SECTOR)
|
||
|
|
assert BOOTLOADER_HEADER.magic == HeaderType.BOOTLOADER
|
||
|
|
length = BOOTLOADER_HEADER.header_len + BOOTLOADER_HEADER.code_length
|
||
|
|
BOOTLOADER = BOOTLOADER_SECTOR[:length]
|
||
|
|
BOOTLOADER_AFTER = BOOTLOADER_SECTOR[length:]
|
||
|
|
|
||
|
|
BOOTLOADER_PARSED = firmware_headers.parse_image(BOOTLOADER)
|
||
|
|
print("Bootloader parses OK:")
|
||
|
|
print(BOOTLOADER_PARSED.format())
|
||
|
|
if all(b == 0 for b in BOOTLOADER_AFTER):
|
||
|
|
print("Bootloader padding is all zero")
|
||
|
|
elif all(b == 0xFF for b in BOOTLOADER_AFTER):
|
||
|
|
print("Bootloader padding is all 0xFF")
|
||
|
|
else:
|
||
|
|
print("WARNING: Bootloader padding is noise!!")
|
||
|
|
|
||
|
|
# rest of the image is prodtest
|
||
|
|
PRODTEST = READER.read()
|
||
|
|
PRODTEST_PARSED = firmware_headers.parse_image(PRODTEST)
|
||
|
|
print("Prodtest parses OK:")
|
||
|
|
print(PRODTEST_PARSED.format())
|
||
|
|
|
||
|
|
# save results:
|
||
|
|
Path("boardloader.bin").write_bytes(BOARDLOADER)
|
||
|
|
Path("bootloader.bin").write_bytes(BOOTLOADER)
|
||
|
|
Path("prodtest.bin").write_bytes(PRODTEST)
|