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455 lines
19 KiB
Python
455 lines
19 KiB
Python
# Benjamin DELPY `gentilkiwi`
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# https://blog.gentilkiwi.com/
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# benjamin@gentilkiwi.com
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#
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# Basic script to try to interpret Intertic data on ST25TB / SRT512 in french transports
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# For Proxmark3 with love <3
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#
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# This program is free software: you can redistribute it and/or modify
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# it 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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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# See LICENSE.txt for the text of the license.
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import sys, os
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from datetime import datetime, timedelta
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from bitarray import bitarray
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from bitarray.util import ba2int
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from typing import NamedTuple
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class BitMe:
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def __init__(self):
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self.data = bitarray(endian = 'big')
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self.idx = 0
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def reset(self):
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self.idx = 0
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def addBits(self, bits):
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self.data += bits
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def addBytes(self, bytes):
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self.data.frombytes(bytes)
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def nom_bits(self, cb):
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ret = self.data[self.idx:self.idx + cb]
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self.idx += cb
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return ret
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def nom(self, cb):
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return ba2int(self.nom_bits(cb))
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def nom_bits_left(self):
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return self.data[self.idx:None]
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def isEmpty(self):
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return (len(self.data) == 0)
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'''
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A generic Describe_Usage function with variable number of bits between stamps will be more optimal
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At this time I want to keep more places/functions to try to parse other fields in 'unk1' and 'left'
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'''
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TYPE_EventCode_Nature = {
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0x1: 'urban bus',
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0x2: 'interurban bus',
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0x3: 'metro',
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0x4: 'tramway',
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0x5: 'train',
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0x8: 'parking',
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}
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TYPE_EventCode_Type = {
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0x1: 'entry validation',
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0x2: 'exit validation',
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0x4: 'ticket inspecting',
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0x6: 'connection entry validation',
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0x14: 'test validation',
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0x15: 'connection exit validation',
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0x16: 'canceled validation',
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0x17: 'invalidation',
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0x18: 'distribution',
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}
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TYPE_EventGeoRoute_Direction = {
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0: 'undefined',
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1: 'outward',
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2: 'inward',
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3: 'circular',
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}
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def Describe_Usage_1(Usage, ContractMediumEndDate, Certificate):
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EventDateStamp = Usage.nom(10)
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EventTimeStamp = Usage.nom(11)
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unk = Usage.nom_bits(65)
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EventValidityTimeFirstStamp = Usage.nom(11)
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print(' EventDateStamp : {} ({})'.format(EventDateStamp, (datetime(1997, 1, 1) + timedelta(days = ContractMediumEndDate - EventDateStamp)).strftime('%Y-%m-%d')));
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print(' EventTimeStamp : {} ({:02d}:{:02d})'. format(EventTimeStamp, EventTimeStamp // 60, EventTimeStamp % 60))
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print(' unk1... :', unk);
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print(' EventValidityTimeFirstStamp: {} ({:02d}:{:02d})'. format(EventValidityTimeFirstStamp, EventValidityTimeFirstStamp // 60, EventValidityTimeFirstStamp % 60))
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print(' left... :', Usage.nom_bits_left());
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print(' [CER] Usage : {:04x}'.format(Certificate.nom(16)))
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def Describe_Usage_1_1(Usage, ContractMediumEndDate, Certificate):
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EventDateStamp = Usage.nom(10)
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EventTimeStamp = Usage.nom(11)
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unk0 = Usage.nom_bits(8)
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EventCode_Nature = Usage.nom(5)
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EventCode_Type = Usage.nom(5)
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unk1 = Usage.nom_bits(11)
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EventGeoVehicleId = Usage.nom(16)
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EventGeoRouteId = Usage.nom(14)
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EventGeoRoute_Direction = Usage.nom(2)
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EventCountPassengers_mb = Usage.nom(4)
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EventValidityTimeFirstStamp = Usage.nom(11)
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print(' DateStamp : {} ({})'.format(EventDateStamp, (datetime(1997, 1, 1) + timedelta(days = ContractMediumEndDate - EventDateStamp)).strftime('%Y-%m-%d')));
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print(' TimeStamp : {} ({:02d}:{:02d})'. format(EventTimeStamp, EventTimeStamp // 60, EventTimeStamp % 60))
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print(' unk0... :', unk0);
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print(' Code/Nature : 0x{:x} ({})'.format(EventCode_Nature, TYPE_EventCode_Nature.get(EventCode_Nature, '?')))
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print(' Code/Type : 0x{:x} ({})'.format(EventCode_Type, TYPE_EventCode_Type.get(EventCode_Type, '?')))
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print(' unk1... :', unk1);
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print(' GeoVehicleId : {}'. format(EventGeoVehicleId))
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print(' GeoRouteId : {}'. format(EventGeoRouteId))
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print(' Direction : {} ({})'. format(EventGeoRoute_Direction, TYPE_EventGeoRoute_Direction.get(EventGeoRoute_Direction, '?')))
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print(' Passengers(?) : {}'. format(EventCountPassengers_mb))
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print(' ValidityTimeFirstStamp: {} ({:02d}:{:02d})'. format(EventValidityTimeFirstStamp, EventValidityTimeFirstStamp // 60, EventValidityTimeFirstStamp % 60))
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print(' left... :', Usage.nom_bits_left());
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print(' [CER] Usage : {:04x}'.format(Certificate.nom(16)))
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def Describe_Usage_1_2(Usage, ContractMediumEndDate, Certificate):
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EventDateStamp = Usage.nom(10)
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EventTimeStamp = Usage.nom(11)
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EventCount_mb = Usage.nom(6)
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unk0 = Usage.nom_bits(4)
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EventCode_Nature_mb = Usage.nom(4)
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EventCode_Type_mb = Usage.nom(4)
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unk1 = Usage.nom_bits(11)
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EventGeoVehicleId = Usage.nom(16)
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EventGeoRouteId = Usage.nom(14)
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EventGeoRoute_Direction = Usage.nom(2)
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EventCountPassengers_mb = Usage.nom(4)
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EventValidityTimeFirstStamp = Usage.nom(11)
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TYPE_EventCode_Nature_Reims = { # usually it's the opposite, but ... ?
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0x4: 'urban bus',
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0x1: 'tramway',
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}
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print(' DateStamp : {} ({})'.format(EventDateStamp, (datetime(1997, 1, 1) + timedelta(days = ContractMediumEndDate - EventDateStamp)).strftime('%Y-%m-%d')));
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print(' TimeStamp : {} ({:02d}:{:02d})'. format(EventTimeStamp, EventTimeStamp // 60, EventTimeStamp % 60))
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print(' Count(?) : {}'. format(EventCount_mb))
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print(' unk0... :', unk0);
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print(' Code/Nature(?) : 0x{:x} ({})'.format(EventCode_Nature_mb, TYPE_EventCode_Nature_Reims.get(EventCode_Nature_mb, '?')))
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print(' Code/Type(?) : 0x{:x} ({})'.format(EventCode_Type_mb, TYPE_EventCode_Type.get(EventCode_Type_mb, '?')))
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print(' unk1... :', unk1);
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print(' GeoVehicleId : {}'. format(EventGeoVehicleId))
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print(' GeoRouteId : {}'. format(EventGeoRouteId))
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print(' Direction : {} ({})'. format(EventGeoRoute_Direction, TYPE_EventGeoRoute_Direction.get(EventGeoRoute_Direction, '?')))
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print(' Passengers(?) : {}'. format(EventCountPassengers_mb))
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print(' ValidityTimeFirstStamp: {} ({:02d}:{:02d})'. format(EventValidityTimeFirstStamp, EventValidityTimeFirstStamp // 60, EventValidityTimeFirstStamp % 60))
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print(' left... :', Usage.nom_bits_left());
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print(' [CER] Usage : {:04x}'.format(Certificate.nom(16)))
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def Describe_Usage_2(Usage, ContractMediumEndDate, Certificate):
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EventDateStamp = Usage.nom(10)
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EventTimeStamp = Usage.nom(11)
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unk0 = Usage.nom_bits(8)
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EventCode_Nature = Usage.nom(5)
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EventCode_Type = Usage.nom(5)
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unk1 = Usage.nom_bits(11)
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EventGeoRouteId = Usage.nom(14)
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EventGeoRoute_Direction = Usage.nom(2)
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EventCountPassengers_mb = Usage.nom(4)
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EventValidityTimeFirstStamp = Usage.nom(11)
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print(' DateStamp : {} ({})'.format(EventDateStamp, (datetime(1997, 1, 1) + timedelta(days = ContractMediumEndDate - EventDateStamp)).strftime('%Y-%m-%d')));
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print(' TimeStamp : {} ({:02d}:{:02d})'. format(EventTimeStamp, EventTimeStamp // 60, EventTimeStamp % 60))
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print(' unk0... :', unk0);
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print(' Code/Nature : 0x{:x} ({})'.format(EventCode_Nature, TYPE_EventCode_Nature.get(EventCode_Nature, '?')))
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print(' Code/Type : 0x{:x} ({})'.format(EventCode_Type, TYPE_EventCode_Type.get(EventCode_Type, '?')))
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print(' unk1... :', unk1);
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print(' GeoRouteId : {}'. format(EventGeoRouteId))
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print(' Direction : {} ({})'. format(EventGeoRoute_Direction, TYPE_EventGeoRoute_Direction.get(EventGeoRoute_Direction, '?')))
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print(' Passengers(?) : {}'. format(EventCountPassengers_mb))
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print(' ValidityTimeFirstStamp: {} ({:02d}:{:02d})'. format(EventValidityTimeFirstStamp, EventValidityTimeFirstStamp // 60, EventValidityTimeFirstStamp % 60))
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print(' left... :', Usage.nom_bits_left());
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print(' [CER] Usage : {:04x}'.format(Certificate.nom(16)))
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def Describe_Usage_3(Usage, ContractMediumEndDate, Certificate):
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EventDateStamp = Usage.nom(10)
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EventTimeStamp = Usage.nom(11)
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unk = Usage.nom_bits(27)
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EventValidityTimeFirstStamp = Usage.nom(11)
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print(' EventDateStamp : {} ({})'.format(EventDateStamp, (datetime(1997, 1, 1) + timedelta(days = ContractMediumEndDate - EventDateStamp)).strftime('%Y-%m-%d')));
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print(' EventTimeStamp : {} ({:02d}:{:02d})'. format(EventTimeStamp, EventTimeStamp // 60, EventTimeStamp % 60))
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print(' unk1... :', unk);
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print(' EventValidityTimeFirstStamp: {} ({:02d}:{:02d})'. format(EventValidityTimeFirstStamp, EventValidityTimeFirstStamp // 60, EventValidityTimeFirstStamp % 60))
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print(' left... :', Usage.nom_bits_left());
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print(' [CER] Usage : {:04x}'.format(Certificate.nom(16)))
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def Describe_Usage_4(Usage, ContractMediumEndDate, Certificate):
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EventDateStamp = Usage.nom(10)
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EventTimeStamp = Usage.nom(11)
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unk = Usage.nom_bits(63)
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EventValidityTimeFirstStamp = Usage.nom(11)
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print(' EventDateStamp : {} ({})'.format(EventDateStamp, (datetime(1997, 1, 1) + timedelta(days = ContractMediumEndDate - EventDateStamp)).strftime('%Y-%m-%d')));
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print(' EventTimeStamp : {} ({:02d}:{:02d})'. format(EventTimeStamp, EventTimeStamp // 60, EventTimeStamp % 60))
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print(' unk1... :', unk);
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print(' EventValidityTimeFirstStamp: {} ({:02d}:{:02d})'. format(EventValidityTimeFirstStamp, EventValidityTimeFirstStamp // 60, EventValidityTimeFirstStamp % 60))
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print(' left... :', Usage.nom_bits_left());
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print(' [CER] Usage : {:04x}'.format(Certificate.nom(16)))
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def Describe_Usage_Generic(Usage, ContractMediumEndDate, Certificate):
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print(' !!! GENERIC DUMP - please provide full file dump to benjamin@gentilkiwi.com - especially if NOT empty !!!')
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print(' left... :', Usage.nom_bits_left());
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print(' [CER] Usage : {:04x}'.format(Certificate.nom(16)))
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print(' !!! Trying Usage_1 (the most common) !!!')
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Usage.reset()
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Certificate.reset()
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Describe_Usage_1(Usage, ContractMediumEndDate, Certificate)
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class InterticHelper(NamedTuple):
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OrganizationalAuthority: str
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ContractProvider: str
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UsageDescribeFunction: callable = None
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ISO_Countries = {
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0x250: 'France',
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}
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FRA_OrganizationalAuthority_Contract_Provider = {
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0x000: {
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5: InterticHelper('Lille', 'Ilévia / Keolis', Describe_Usage_1_1),
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7: InterticHelper('Lens-Béthune', 'Tadao / Transdev', Describe_Usage_1_1),
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},
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0x006: {
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1: InterticHelper('Amiens', 'Ametis / Keolis'),
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},
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0x008: {
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15: InterticHelper('Angoulême', 'STGA', Describe_Usage_1_1), # May have a problem with date ?
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},
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0x013: {
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1: InterticHelper('Avignon', 'Orizo'),
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}
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0x021: {
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1: InterticHelper('Bordeaux', 'TBM / Keolis', Describe_Usage_1_1),
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},
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0x057: {
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1: InterticHelper('Lyon', 'TCL / Keolis', Describe_Usage_1), # Strange usage ?, kept on generic 1
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},
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0x072: {
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1: InterticHelper('Tours', 'filbleu / Keolis', Describe_Usage_1_1),
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},
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0x078: {
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4: InterticHelper('Reims', 'Citura / Transdev', Describe_Usage_1_2),
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},
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0x091: {
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1: InterticHelper('Strasbourg', 'CTS', Describe_Usage_4), # More dump needed, not only tram !
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},
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0x502: {
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83: InterticHelper('Annecy', 'Sibra', Describe_Usage_2),
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84: InterticHelper('Bourg-en-Bresse', 'Rubis / Keolis'),
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10: InterticHelper('Clermont-Ferrand', 'T2C'),
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},
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0x907: {
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1: InterticHelper('Dijon', 'Divia / Keolis'),
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},
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0x908: {
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1: InterticHelper('Rennes', 'STAR / Keolis', Describe_Usage_2),
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8: InterticHelper('Saint-Malo', 'MAT / RATP', Describe_Usage_1_1),
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},
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0x911: {
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5: InterticHelper('Besançon', 'Ginko / Keolis'),
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},
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0x912: {
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3: InterticHelper('Le Havre', 'Lia / Transdev', Describe_Usage_1_1),
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35: InterticHelper('Cherbourg-en-Cotentin', 'Cap Cotentin / Transdev'),
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},
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0x913: {
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3: InterticHelper('Nîmes', 'Tango / Transdev', Describe_Usage_3),
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},
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0x915: {
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1: InterticHelper('Metz', 'Le Met\' / TAMM'),
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},
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0x917: {
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4: InterticHelper('Angers', 'Irigo / RATP', Describe_Usage_1_2),
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7: InterticHelper('Saint-Nazaire', 'Stran'),
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},
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}
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def main():
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print('Basic script to try to interpret Intertic data on ST25TB / SRT512 in french transports')
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print('--------------------------------------------------------------------------------------\n')
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if(len(sys.argv) != 2):
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print('\tUsage : {0} <dumpfile.bin>\n\tExample: {0} hf-14b-D00233787DFBB4D5-dump.bin\n'.format(sys.argv[0]))
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return 1
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binaryDumpFileName = sys.argv[1]
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data = BitMe()
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print('Using \'{}\' as binary dump file...'.format(binaryDumpFileName))
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file = open(binaryDumpFileName, mode='rb')
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file.seek(0, os.SEEK_END)
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size = file.tell()
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file.seek(0, os.SEEK_SET)
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if (size != 68):
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print('\'{}\' file size is not 68 bytes'.format(binaryDumpFileName))
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return 2
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while True:
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chunk = file.read(4)
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if not chunk:
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break
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data.addBytes(chunk[::-1])
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file.close()
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Distribution_Data = BitMe()
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Block0Left = BitMe()
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# Usage_DAT = BitMe()
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# Usage_CER = BitMe()
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Usage_A_DAT = BitMe()
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Usage_A_CER = BitMe()
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Usage_B_DAT = BitMe()
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Usage_B_CER = BitMe()
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Distribution_Cer = BitMe()
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SWAP = None
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RELOADING1 = None
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COUNTER1 = None
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# RELOADING2 = None
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# COUNTER2 = None
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Describe_Usage = None
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Block0Left.addBits(data.nom_bits(23))
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KeyId = data.nom(4)
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PID = data.nom(5)
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match PID:
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case 0x10:
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Distribution_Data.addBits(data.nom_bits(2 * 32))
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Distribution_Data.addBits(Block0Left.nom_bits_left())
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Usage_A_DAT.addBits(data.nom_bits(2 * 32))
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RELOADING1 = data.nom(8)
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COUNTER1 = data.nom(24)
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SWAP = data.nom(32)
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Usage_A_DAT.addBits(data.nom_bits(2 * 32))
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Usage_A_DAT.addBits(data.nom_bits(16))
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Usage_A_CER.addBits(data.nom_bits(16))
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Usage_B_DAT.addBits(data.nom_bits(4 * 32))
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Usage_B_DAT.addBits(data.nom_bits(16))
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Usage_B_CER.addBits(data.nom_bits(16))
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Distribution_Cer.addBits(data.nom_bits(32))
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case 0x11 | 0x19:
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Distribution_Data.addBits(data.nom_bits(4 * 32))
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Distribution_Data.addBits(Block0Left.nom_bits_left())
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RELOADING1 = data.nom(8)
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COUNTER1 = data.nom(24)
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SWAP = data.nom(32)
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Usage_A_DAT.addBits(data.nom_bits(3 * 32))
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Usage_A_DAT.addBits(data.nom_bits(16))
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Usage_A_CER.addBits(data.nom_bits(16))
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Usage_B_DAT.addBits(data.nom_bits(3 * 32))
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Usage_B_DAT.addBits(data.nom_bits(16))
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Usage_B_CER.addBits(data.nom_bits(16))
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Distribution_Cer.addBits(data.nom_bits(32))
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case _:
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print('PID not (yet?) supported: 0x{:02x}'.format(PID))
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return 3
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print('PID (product): 0x{:02x} (flipflop?: {})'.format(PID, (PID & 0x10) != 0));
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print('KeyId : 0x{:1x}'.format(KeyId))
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print()
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'''
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DISTRIBUTION
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------------
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Not very well documented but seems standard for this part
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'''
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if not Distribution_Data.isEmpty():
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ContractNetworkId = Distribution_Data.nom_bits(24)
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CountryCode = ba2int(ContractNetworkId[0:0+12])
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OrganizationalAuthority = ba2int(ContractNetworkId[12:12+12])
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ContractApplicationVersionNumber = Distribution_Data.nom(6)
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ContractProvider = Distribution_Data.nom(8)
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ContractTariff = Distribution_Data.nom(16)
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ContractMediumEndDate = Distribution_Data.nom(14)
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Distribution_left = Distribution_Data.nom_bits_left()
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print('DISTRIBUTION')
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print(' CountryCode : {:03x} - {}'.format(CountryCode, ISO_Countries.get(CountryCode, '?')));
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print(' OrganizationalAuthority : {:03x}'.format(OrganizationalAuthority));
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print(' ContractApplicationVersionNumber:', ContractApplicationVersionNumber);
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print(' ContractProvider :', ContractProvider);
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if (CountryCode == 0x250):
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oa = FRA_OrganizationalAuthority_Contract_Provider.get(OrganizationalAuthority)
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if (oa is not None):
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s = oa.get(ContractProvider)
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|
if (s is not None):
|
|
print(' ~ Authority & Provider ~ : {} ({})'.format(s.OrganizationalAuthority, s.ContractProvider))
|
|
Describe_Usage = s.UsageDescribeFunction
|
|
print(' ContractTariff :', ContractTariff);
|
|
print(' ContractMediumEndDate : {} ({})'.format(ContractMediumEndDate, (datetime(1997, 1, 1) + timedelta(days = ContractMediumEndDate)).strftime('%Y-%m-%d')));
|
|
print(' left... :', Distribution_left);
|
|
print(' [CER] Distribution : {:08x}'.format(Distribution_Cer.nom(32)))
|
|
print()
|
|
|
|
if(Describe_Usage is None):
|
|
Describe_Usage = Describe_Usage_Generic
|
|
|
|
if COUNTER1 is not None:
|
|
print('[1] Counter: 0x{:06x} - Reloading available: 0x{:02x}'.format(COUNTER1, RELOADING1))
|
|
# if COUNTER2 is not None:
|
|
# print('[2] Counter: 0x{:06x} - Reloading available: 0x{:02x}'.format(COUNTER2, RELOADING2))
|
|
if SWAP is not None:
|
|
print('[S] SWAP : 0x{:08x} - last usage on USAGE_{}'.format(SWAP, 'B' if SWAP & 0b1 else 'A'))
|
|
|
|
|
|
'''
|
|
USAGE
|
|
-----
|
|
No real documentation about Usage
|
|
Nearly all is left... - did not seen implementation with 2 counters or 1 Usage
|
|
'''
|
|
|
|
if not Usage_A_DAT.isEmpty():
|
|
print()
|
|
print('USAGE_A')
|
|
Describe_Usage(Usage_A_DAT, ContractMediumEndDate, Usage_A_CER)
|
|
|
|
if not Usage_B_DAT.isEmpty():
|
|
print()
|
|
print('USAGE_B')
|
|
Describe_Usage(Usage_B_DAT, ContractMediumEndDate, Usage_B_CER)
|
|
|
|
|
|
return 0
|
|
|
|
|
|
if __name__ == '__main__':
|
|
sys.exit(main())
|