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scripts: add support for Sercomm PID
This scripts creates Sercomm PID file. PID is necessary for the factory images creation of variuos Sercomm-based devices (Beeline, Netgear, Etisalat). Size: 0x70 +-------+------+---------------+------------------+ | Start | Size | Value* (ASCII)| Description | +=======+======+===============+==================+ | 0x0 | 0x8 | 10100 | Hardware version | +-------+------+---------------+------------------+ | 0x8 | 0x8 | 444245 (DBE) | Hardware ID | +-------+------+---------------+------------------+ | 0x64 | 0x4 | 1002 | Software version | +-------+------+---------------+------------------+ *for Beeline Smartbox GIGA Signed-off-by: Mikhail Zhilkin <csharper2005@gmail.com>
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#!/usr/bin/env python3 | ||
""" | ||
# SPDX-License-Identifier: GPL-2.0-or-later | ||
# | ||
# sercomm-pid.py: Creates Sercomm device PID | ||
# | ||
# Copyright © 2022 Mikhail Zhilkin | ||
""" | ||
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import argparse | ||
import binascii | ||
import struct | ||
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PID_SIZE = 0x70 | ||
PADDING = 0x30 | ||
PADDING_TAIL = 0x0 | ||
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def auto_int(x): | ||
return int(x, 0) | ||
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def create_pid_file(args): | ||
pid_file = open(args.pid_file, "wb") | ||
buf = get_pid(args) | ||
pid_file.write(buf) | ||
pid_file.close() | ||
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def get_pid(args): | ||
buf = bytearray([PADDING] * PID_SIZE) | ||
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enc = args.hw_version.rjust(8, '0').encode('ascii') | ||
struct.pack_into('>8s', buf, 0x0, enc) | ||
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enc = binascii.hexlify(args.hw_id.encode()) | ||
struct.pack_into('>6s', buf, 0x8, enc) | ||
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enc = args.sw_version.rjust(4, '0').encode('ascii') | ||
struct.pack_into('>4s', buf, 0x64, enc) | ||
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if (args.extra_padd_size): | ||
tail = bytearray([PADDING_TAIL] * args.extra_padd_size) | ||
if (args.extra_padd_byte): | ||
struct.pack_into ('<i', tail, 0x0, | ||
args.extra_padd_byte) | ||
buf += tail | ||
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return buf | ||
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def main(): | ||
global args | ||
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parser = argparse.ArgumentParser(description='This script \ | ||
generates firmware PID for the Sercomm-based devices') | ||
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parser.add_argument('--hw-version', | ||
dest='hw_version', | ||
action='store', | ||
type=str, | ||
help='Sercomm hardware version') | ||
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parser.add_argument('--hw-id', | ||
dest='hw_id', | ||
action='store', | ||
type=str, | ||
help='Sercomm hardware ID') | ||
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parser.add_argument('--sw-version', | ||
dest='sw_version', | ||
action='store', | ||
type=str, | ||
help='Sercomm software version') | ||
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parser.add_argument('--pid-file', | ||
dest='pid_file', | ||
action='store', | ||
type=str, | ||
help='Output PID file') | ||
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parser.add_argument('--extra-padding-size', | ||
dest='extra_padd_size', | ||
action='store', | ||
type=auto_int, | ||
help='Size of extra NULL padding at the end of the file \ | ||
(optional)') | ||
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parser.add_argument('--extra-padding-first-byte', | ||
dest='extra_padd_byte', | ||
action='store', | ||
type=auto_int, | ||
help='First byte of extra padding (optional)') | ||
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args = parser.parse_args() | ||
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if ((not args.hw_version) or | ||
(not args.hw_id) or | ||
(not args.sw_version) or | ||
(not args.pid_file)): | ||
parser.print_help() | ||
exit() | ||
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create_pid_file(args) | ||
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main() |