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109 lines
3.3 KiB
Python
Executable File
109 lines
3.3 KiB
Python
Executable File
#! /usr/bin/python3
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"""
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gnuk_upgrade.py - a tool to upgrade firmware of Gnuk Token
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Copyright (C) 2012, 2015, 2021, 2022
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Free Software Initiative of Japan
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Author: NIIBE Yutaka <gniibe@fsij.org>
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This file is a part of Gnuk, a GnuPG USB Token implementation.
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Gnuk is free software: you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Gnuk is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
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License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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from struct import *
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import sys, time, os, binascii
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# INPUT: binary files (regnual_image, upgrade_firmware_image)
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# Assume only single CCID device is attached to computer, and it's Gnuk Token
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import usb
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from gnuk_token import *
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from subprocess import check_output
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def main(data_regnual, data_upgrade):
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l = len(data_regnual)
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if (l & 0x03) != 0:
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data_regnual = data_regnual.ljust(l + 4 - (l & 0x03), b'\x00')
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crc32code = crc32(data_regnual)
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print("CRC32: %04x\n" % crc32code)
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data_regnual += pack('<I', crc32code)
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for (dev, config, intf) in gnuk_devices():
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try:
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icc = gnuk_token(dev, config, intf)
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print("Device: %s" % dev.filename)
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print("Configuration: %d" % config.value)
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print("Interface: %d" % intf.interfaceNumber)
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break
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except:
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icc = None
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if icc.icc_get_status() == 2:
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raise ValueError("No ICC present")
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elif icc.icc_get_status() == 1:
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icc.icc_power_on()
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icc.cmd_select_openpgp()
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icc.cmd_external_authenticate()
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icc.stop_gnuk()
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mem_info = icc.mem_info()
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print("%08x:%08x" % mem_info)
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print("Downloading flash upgrade program...")
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icc.download(mem_info[0], data_regnual)
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print("Run flash upgrade program...")
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icc.execute(mem_info[0] + len(data_regnual) - 4)
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#
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time.sleep(3)
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icc.reset_device()
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del icc
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icc = None
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#
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reg = None
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print("Waiting for device to appear:")
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while reg == None:
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print(" Wait {} second{}...".format(wait_e, 's' if wait_e > 1 else ''))
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time.sleep(wait_e)
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for dev in gnuk_devices_by_vidpid():
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try:
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reg = regnual(dev)
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print("Device: %s" % dev.filename)
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break
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except:
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pass
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# Then, send upgrade program...
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mem_info = reg.mem_info()
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print("%08x:%08x" % mem_info)
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print("Downloading the program")
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reg.download(mem_info[0], data_upgrade)
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reg.protect()
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reg.finish()
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reg.reset_device()
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return 0
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if __name__ == '__main__':
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filename_regnual = sys.argv[1]
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filename_upgrade = sys.argv[2]
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f = open(filename_regnual, "rb")
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data_regnual = f.read()
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f.close()
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print("%s: %d" % (filename_regnual, len(data_regnual)))
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f = open(filename_upgrade, "rb")
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data_upgrade = f.read()
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f.close()
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print("%s: %d" % (filename_upgrade, len(data_upgrade)))
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main(data_regnual, data_upgrade[4096:])
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