mbirth/gcd-parser
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Various new TLV field types found in various firmwares.

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This commit is contained in:
Markus Birth 2019-06-28 20:33:25 +02:00
parent 8038182736
commit d47f21475e
Signed by: mbirth
GPG Key ID: A9928D7A098C3A9A
2 changed files with 24 additions and 6 deletions
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1
grmn/gcd.py
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@ -5,6 +5,7 @@ from .chksum import ChkSum
from .tlv import TLV, TLV6, TLV7, TLVbinary from .tlv import TLV, TLV6, TLV7, TLVbinary
from struct import unpack from struct import unpack
import configparser import configparser
import sys
GCD_SIG = b"G\x41RM\x49Nd\00" GCD_SIG = b"G\x41RM\x49Nd\00"
DEFAULT_COPYRIGHT = b"Copyright 1996-2017 by G\x61rm\x69n Ltd. or its subsidiaries." DEFAULT_COPYRIGHT = b"Copyright 1996-2017 by G\x61rm\x69n Ltd. or its subsidiaries."

29
grmn/tlv.py
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@ -3,6 +3,7 @@
from . import devices from . import devices
from binascii import hexlify, unhexlify from binascii import hexlify, unhexlify
from struct import pack, unpack from struct import pack, unpack
import sys
TLV_TYPES = { TLV_TYPES = {
0x0001: "Checksum rectifier", 0x0001: "Checksum rectifier",
@ -17,28 +18,44 @@ TLV_TYPES = {
0x0505: "Binary Region 05 (main firmware)", 0x0505: "Binary Region 05 (main firmware)",
0x0510: "Binary Region 10 (logo)", 0x0510: "Binary Region 10 (logo)",
0x051b: "Binary Region 1b", 0x051b: "Binary Region 1b",
0x052b: "Binary Region 2b",
0x0533: "Binary Region 33 (dskimg)", 0x0533: "Binary Region 33 (dskimg)",
0x0549: "Binary Region 49",
0x0555: "Binary Region 55 (fw)", 0x0555: "Binary Region 55 (fw)",
0x0556: "Binary Region 56",
0x0557: "Binary Region 57", 0x0557: "Binary Region 57",
0x0566: "Binary Region 66 (files.bin)", 0x0566: "Binary Region 66 (files.bin)",
0x057f: "Binary Region 7f (resources)", 0x057f: "Binary Region 7f (resources)",
0x0588: "Binary Region 88",
0x0590: "Binary Region 90",
0x0595: "Binary Region 95", 0x0595: "Binary Region 95",
0x0599: "Binary Region 99", 0x0599: "Binary Region 99",
0x059e: "Binary Region 9e (resources)", 0x059e: "Binary Region 9e (resources)",
0x07d1: "Binary ???", 0x05a2: "Binary Region a2",
0x07d2: "Binary ???", 0x05ab: "Binary Region ab",
0x07d3: "Binary ???", 0x05f5: "Binary Region f5",
0x05f9: "Binary Region f9",
0x05fa: "Binary Region fa",
0x05fb: "Binary Region fb",
0x05fc: "Binary Region fc",
0x05fd: "Binary Region fd",
0x05fe: "Binary Region fe",
0x07d1: "Binary 07d1",
0x07d2: "Binary 07d2",
0x07d3: "Binary 07d3",
0xffff: "EOF marker", 0xffff: "EOF marker",
} }
BINARY_TLVS = [0x0008, 0x02bd, 0x0505, 0x0510, 0x0533, 0x0555, 0x0557, 0x0566, 0x057f, 0x059e, 0x07d1, 0x07d2, 0x07d3] BINARY_TLVS = [ 0x0008, 0x02bd, 0x0505, 0x0510, 0x051b, 0x052b, 0x0533, 0x0549, 0x0555, 0x0556,
0x0557, 0x0566, 0x057f, 0x0588, 0x0590, 0x0595, 0x0599, 0x059e, 0x05a2, 0x05ab,
0x05f5, 0x05f9, 0x05fa, 0x05fb, 0x05fc, 0x05fd, 0x05fe, 0x07d1, 0x07d2, 0x07d3 ]
class TLV: class TLV:
def __init__(self, type_id: int, expected_length: int, value=None, offset: int=None): def __init__(self, type_id: int, expected_length: int, value=None, offset: int=None):
self.type_id = type_id self.type_id = type_id
self.is_binary = False self.is_binary = False
self.offset = offset self.offset = offset
self.comment = TLV_TYPES.get(type_id, "Type {:04x} / {:d}".format(type_id, type_id)) self.comment = TLV_TYPES.get(type_id, RED + "Type {:04x} / {:d}".format(type_id, type_id) + RESET)
self.length = expected_length self.length = expected_length
self.value = None self.value = None
self.is_parsed = False self.is_parsed = False
@ -387,7 +404,7 @@ class TLVbinary0401(TLVbinary):
txt += "\n - hw_id: 0x{:04x} / {:d} ({})".format(hwid, hwid, devices.DEVICES.get(hwid, "Unknown device")) txt += "\n - hw_id: 0x{:04x} / {:d} ({})".format(hwid, hwid, devices.DEVICES.get(hwid, "Unknown device"))
txt += "\n - Version: 0x{:04x} / {:d}".format(version, version) txt += "\n - Version: 0x{:04x} / {:d}".format(version, version)
else: else:
txt = "Unknown header format (0x{:04x} / 0x{:04x})".format(hdr1, hdr2) txt += "\n - Unknown header format (0x{:04x} / 0x{:04x})".format(hdr1, hdr2)
#if not self.is_parsed: #if not self.is_parsed:
# self.parse() # self.parse()
return txt return txt