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trezor-firmware/tools/mem_read.py
matejcik 967d479a19 update tools to use the new transport API
also drop some python2 compatibility things
2018-03-05 17:30:44 +01:00

50 lines
1.3 KiB
Python
Executable File

#!/usr/bin/env python3
from trezorlib.debuglink import DebugLink
from trezorlib.client import TrezorClient
from trezorlib.transport import enumerate_devices
import sys
# usage examples
# read entire bootloader: ./mem_read.py 8000000 8000
# read initial stack pointer: ./mem_read.py 8000000 4
# an entire bootloader can be later disassembled with:
# arm-none-eabi-objdump -D -b binary -m arm -M force-thumb memory.dat
# note that in order for this to work, your trezor device must
# be running a firmware that was built with debug link enabled
def main():
# List all debuggable TREZORs
devices = [device for device in enumerate_devices() if hasattr(device, 'find_debug')]
# Check whether we found any
if len(devices) == 0:
print('No TREZOR found')
return
# Use first connected device
transport = devices[0]
debug_transport = devices[0].find_debug()
# Creates object for manipulating TREZOR
client = TrezorClient(transport)
debug = DebugLink(debug_transport)
arg1 = int(sys.argv[1], 16)
arg2 = int(sys.argv[2], 16)
step = 0x400 if arg2 >= 0x400 else arg2
f = open('memory.dat', 'wb')
for addr in range(arg1, arg1 + arg2, step):
mem = debug.memory_read(addr, step)
f.write(mem)
f.close()
client.close()
if __name__ == '__main__':
main()