aboutsummaryrefslogtreecommitdiffstats
path: root/pySim/cards.py
blob: 046766ef8f514c2e923aeb741b963e8d6ed2d687 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
#!/usr/bin/env python
# -*- coding: utf-8 -*-

""" pySim: Card programmation logic
"""

#
# Copyright (C) 2009-2010  Sylvain Munaut <tnt@246tNt.com>
# Copyright (C) 2011  Harald Welte <laforge@gnumonks.org>
# Copyright (C) 2017 Alexander.Chemeris <Alexander.Chemeris@gmail.com>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.
#

from pySim.ts_51_011 import EF, DF
from pySim.utils import *
from smartcard.util import toBytes

class Card(object):

	def __init__(self, scc):
		self._scc = scc
		self._adm_chv_num = 4

	def reset(self):
		self._scc.reset_card()

	def verify_adm(self, key):
		'''
		Authenticate with ADM key
		'''
		(res, sw) = self._scc.verify_chv(self._adm_chv_num, key)
		return sw

	def read_iccid(self):
		(res, sw) = self._scc.read_binary(EF['ICCID'])
		if sw == '9000':
			return (dec_iccid(res), sw)
		else:
			return (None, sw)

	def read_imsi(self):
		(res, sw) = self._scc.read_binary(EF['IMSI'])
		if sw == '9000':
			return (dec_imsi(res), sw)
		else:
			return (None, sw)

	def update_imsi(self, imsi):
		data, sw = self._scc.update_binary(EF['IMSI'], enc_imsi(imsi))
		return sw

	def update_acc(self, acc):
		data, sw = self._scc.update_binary(EF['ACC'], lpad(acc, 4))
		return sw

	def update_hplmn_act(self, mcc, mnc, access_tech='FFFF'):
		"""
		Update Home PLMN with access technology bit-field

		See Section "10.3.37 EFHPLMNwAcT (HPLMN Selector with Access Technology)"
		in ETSI TS 151 011 for the details of the access_tech field coding.
		Some common values:
		access_tech = '0080' # Only GSM is selected
		access_tech = 'FFFF' # All technologues selected, even Reserved for Future Use ones
		"""
		# get size and write EF.HPLMNwAcT
		r = self._scc.select_file(EF['HPLMNwAcT'])
		size = int(r[-1][4:8], 16)
		hplmn = enc_plmn(mcc, mnc)
		content = hplmn + access_tech
		data, sw = self._scc.update_binary(EF['HPLMNwAcT'], content + 'ffffff0000' * (size/5-1))
		return sw

	def update_smsp(self, smsp):
		data, sw = self._scc.update_record(EF['SMSP'], 1, rpad(smsp, 84))
		return sw

	def read_spn(self):
		(spn, sw) = self._scc.read_binary(EF['SPN'])
		if sw == '9000':
			return (dec_spn(spn), sw)
		else:
			return (None, sw)

	def update_spn(self, name, hplmn_disp=False, oplmn_disp=False):
		content = enc_spn(name, hplmn_disp, oplmn_disp)
		data, sw = self._scc.update_binary(EF['SPN'], rpad(content, 32))
		return sw


class _MagicSimBase(Card):
	"""
	Theses cards uses several record based EFs to store the provider infos,
	each possible provider uses a specific record number in each EF. The
	indexes used are ( where N is the number of providers supported ) :
	 - [2 .. N+1] for the operator name
     - [1 .. N] for the programable EFs

	* 3f00/7f4d/8f0c : Operator Name

	bytes 0-15 : provider name, padded with 0xff
	byte  16   : length of the provider name
	byte  17   : 01 for valid records, 00 otherwise

	* 3f00/7f4d/8f0d : Programmable Binary EFs

	* 3f00/7f4d/8f0e : Programmable Record EFs

	"""

	@classmethod
	def autodetect(kls, scc):
		try:
			for p, l, t in kls._files.values():
				if not t:
					continue
				if scc.record_size(['3f00', '7f4d', p]) != l:
					return None
		except:
			return None

		return kls(scc)

	def _get_count(self):
		"""
		Selects the file and returns the total number of entries
		and entry size
		"""
		f = self._files['name']

		r = self._scc.select_file(['3f00', '7f4d', f[0]])
		rec_len = int(r[-1][28:30], 16)
		tlen = int(r[-1][4:8],16)
		rec_cnt = (tlen / rec_len) - 1;

		if (rec_cnt < 1) or (rec_len != f[1]):
			raise RuntimeError('Bad card type')

		return rec_cnt

	def program(self, p):
		# Go to dir
		self._scc.select_file(['3f00', '7f4d'])

		# Home PLMN in PLMN_Sel format
		hplmn = enc_plmn(p['mcc'], p['mnc'])

		# Operator name ( 3f00/7f4d/8f0c )
		self._scc.update_record(self._files['name'][0], 2,
			rpad(b2h(p['name']), 32)  + ('%02x' % len(p['name'])) + '01'
		)

		# ICCID/IMSI/Ki/HPLMN ( 3f00/7f4d/8f0d )
		v = ''

			# inline Ki
		if self._ki_file is None:
			v += p['ki']

			# ICCID
		v += '3f00' + '2fe2' + '0a' + enc_iccid(p['iccid'])

			# IMSI
		v += '7f20' + '6f07' + '09' + enc_imsi(p['imsi'])

			# Ki
		if self._ki_file:
			v += self._ki_file + '10' + p['ki']

			# PLMN_Sel
		v+= '6f30' + '18' +  rpad(hplmn, 36)

			# ACC
			# This doesn't work with "fake" SuperSIM cards,
			# but will hopefully work with real SuperSIMs.
		if p.get('acc') is not None:
			v+= '6f78' + '02' + lpad(p['acc'], 4)

		self._scc.update_record(self._files['b_ef'][0], 1,
			rpad(v, self._files['b_ef'][1]*2)
		)

		# SMSP ( 3f00/7f4d/8f0e )
			# FIXME

		# Write PLMN_Sel forcefully as well
		r = self._scc.select_file(['3f00', '7f20', '6f30'])
		tl = int(r[-1][4:8], 16)

		hplmn = enc_plmn(p['mcc'], p['mnc'])
		self._scc.update_binary('6f30', hplmn + 'ff' * (tl-3))

	def erase(self):
		# Dummy
		df = {}
		for k, v in self._files.iteritems():
			ofs = 1
			fv = v[1] * 'ff'
			if k == 'name':
				ofs = 2
				fv = fv[0:-4] + '0000'
			df[v[0]] = (fv, ofs)

		# Write
		for n in range(0,self._get_count()):
			for k, (msg, ofs) in df.iteritems():
				self._scc.update_record(['3f00', '7f4d', k], n + ofs, msg)


class SuperSim(_MagicSimBase):

	name = 'supersim'

	_files = {
		'name' : ('8f0c', 18, True),
		'b_ef' : ('8f0d', 74, True),
		'r_ef' : ('8f0e', 50, True),
	}

	_ki_file = None


class MagicSim(_MagicSimBase):

	name = 'magicsim'

	_files = {
		'name' : ('8f0c', 18, True),
		'b_ef' : ('8f0d', 130, True),
		'r_ef' : ('8f0e', 102, False),
	}

	_ki_file = '6f1b'


class FakeMagicSim(Card):
	"""
	Theses cards have a record based EF 3f00/000c that contains the provider
	informations. See the program method for its format. The records go from
	1 to N.
	"""

	name = 'fakemagicsim'

	@classmethod
	def autodetect(kls, scc):
		try:
			if scc.record_size(['3f00', '000c']) != 0x5a:
				return None
		except:
			return None

		return kls(scc)

	def _get_infos(self):
		"""
		Selects the file and returns the total number of entries
		and entry size
		"""

		r = self._scc.select_file(['3f00', '000c'])
		rec_len = int(r[-1][28:30], 16)
		tlen = int(r[-1][4:8],16)
		rec_cnt = (tlen / rec_len) - 1;

		if (rec_cnt < 1) or (rec_len != 0x5a):
			raise RuntimeError('Bad card type')

		return rec_cnt, rec_len

	def program(self, p):
		# Home PLMN
		r = self._scc.select_file(['3f00', '7f20', '6f30'])
		tl = int(r[-1][4:8], 16)

		hplmn = enc_plmn(p['mcc'], p['mnc'])
		self._scc.update_binary('6f30', hplmn + 'ff' * (tl-3))

		# Get total number of entries and entry size
		rec_cnt, rec_len = self._get_infos()

		# Set first entry
		entry = (
			'81' +								#  1b  Status: Valid & Active
			rpad(b2h(p['name'][0:14]), 28) +	# 14b  Entry Name
			enc_iccid(p['iccid']) +				# 10b  ICCID
			enc_imsi(p['imsi']) +				#  9b  IMSI_len + id_type(9) + IMSI
			p['ki'] +							# 16b  Ki
			lpad(p['smsp'], 80)					# 40b  SMSP (padded with ff if needed)
		)
		self._scc.update_record('000c', 1, entry)

	def erase(self):
		# Get total number of entries and entry size
		rec_cnt, rec_len = self._get_infos()

		# Erase all entries
		entry = 'ff' * rec_len
		for i in range(0, rec_cnt):
			self._scc.update_record('000c', 1+i, entry)


class GrcardSim(Card):
	"""
	Greencard (grcard.cn) HZCOS GSM SIM
	These cards have a much more regular ISO 7816-4 / TS 11.11 structure,
	and use standard UPDATE RECORD / UPDATE BINARY commands except for Ki.
	"""

	name = 'grcardsim'

	@classmethod
	def autodetect(kls, scc):
		return None

	def program(self, p):
		# We don't really know yet what ADM PIN 4 is about
		#self._scc.verify_chv(4, h2b("4444444444444444"))

		# Authenticate using ADM PIN 5
		if p['pin_adm']:
			pin = p['pin_adm']
		else:
			pin = h2b("4444444444444444")
		self._scc.verify_chv(5, pin)

		# EF.ICCID
		r = self._scc.select_file(['3f00', '2fe2'])
		data, sw = self._scc.update_binary('2fe2', enc_iccid(p['iccid']))

		# EF.IMSI
		r = self._scc.select_file(['3f00', '7f20', '6f07'])
		data, sw = self._scc.update_binary('6f07', enc_imsi(p['imsi']))

		# EF.ACC
		if p.get('acc') is not None:
			data, sw = self._scc.update_binary('6f78', lpad(p['acc'], 4))

		# EF.SMSP
		r = self._scc.select_file(['3f00', '7f10', '6f42'])
		data, sw = self._scc.update_record('6f42', 1, lpad(p['smsp'], 80))

		# Set the Ki using proprietary command
		pdu = '80d4020010' + p['ki']
		data, sw = self._scc._tp.send_apdu(pdu)

		# EF.HPLMN
		r = self._scc.select_file(['3f00', '7f20', '6f30'])
		size = int(r[-1][4:8], 16)
		hplmn = enc_plmn(p['mcc'], p['mnc'])
		self._scc.update_binary('6f30', hplmn + 'ff' * (size-3))

		# EF.SPN (Service Provider Name)
		r = self._scc.select_file(['3f00', '7f20', '6f30'])
		size = int(r[-1][4:8], 16)
		# FIXME

		# FIXME: EF.MSISDN

	def erase(self):
		return

class SysmoSIMgr1(GrcardSim):
	"""
	sysmocom sysmoSIM-GR1
	These cards have a much more regular ISO 7816-4 / TS 11.11 structure,
	and use standard UPDATE RECORD / UPDATE BINARY commands except for Ki.
	"""
	name = 'sysmosim-gr1'


class SysmoUSIMgr1(Card):
	"""
	sysmocom sysmoUSIM-GR1
	"""
	name = 'sysmoUSIM-GR1'

	@classmethod
	def autodetect(kls, scc):
		# TODO: Access the ATR
		return None

	def program(self, p):
		# TODO: check if verify_chv could be used or what it needs
		# self._scc.verify_chv(0x0A, [0x33,0x32,0x32,0x31,0x33,0x32,0x33,0x32])
		# Unlock the card..
		data, sw = self._scc._tp.send_apdu_checksw("0020000A083332323133323332")

		# TODO: move into SimCardCommands
		par = ( p['ki'] +			# 16b  K
			p['opc'] +				# 32b  OPC
			enc_iccid(p['iccid']) +	# 10b  ICCID
			enc_imsi(p['imsi'])		#  9b  IMSI_len + id_type(9) + IMSI
			)
		data, sw = self._scc._tp.send_apdu_checksw("0099000033" + par)

	def erase(self):
		return


class SysmoSIMgr2(Card):
	"""
	sysmocom sysmoSIM-GR2
	"""

	name = 'sysmoSIM-GR2'

	@classmethod
	def autodetect(kls, scc):
		try:
			# Look for ATR
			if scc.get_atr() == toBytes("3B 7D 94 00 00 55 55 53 0A 74 86 93 0B 24 7C 4D 54 68"):
				return kls(scc)
		except:
			return None
		return None

	def program(self, p):

		# select MF 
		r = self._scc.select_file(['3f00'])
		
		# authenticate as SUPER ADM using default key
		self._scc.verify_chv(0x0b, h2b("3838383838383838"))

		# set ADM pin using proprietary command
		# INS: D4
		# P1: 3A for PIN, 3B for PUK
		# P2: CHV number, as in VERIFY CHV for PIN, and as in UNBLOCK CHV for PUK
		# P3: 08, CHV length (curiously the PUK is also 08 length, instead of 10)
		if p['pin_adm']:
			pin = p['pin_adm']
		else:
			pin = h2b("4444444444444444")

		pdu = 'A0D43A0508' + b2h(pin)
		data, sw = self._scc._tp.send_apdu(pdu)
		
		# authenticate as ADM (enough to write file, and can set PINs)

		self._scc.verify_chv(0x05, pin)

		# write EF.ICCID
		data, sw = self._scc.update_binary('2fe2', enc_iccid(p['iccid']))

		# select DF_GSM
		r = self._scc.select_file(['7f20'])
		
		# write EF.IMSI
		data, sw = self._scc.update_binary('6f07', enc_imsi(p['imsi']))

		# write EF.ACC
		if p.get('acc') is not None:
			data, sw = self._scc.update_binary('6f78', lpad(p['acc'], 4))

		# get size and write EF.HPLMN
		r = self._scc.select_file(['6f30'])
		size = int(r[-1][4:8], 16)
		hplmn = enc_plmn(p['mcc'], p['mnc'])
		self._scc.update_binary('6f30', hplmn + 'ff' * (size-3))

		# set COMP128 version 0 in proprietary file
		data, sw = self._scc.update_binary('0001', '001000')

		# set Ki in proprietary file
		data, sw = self._scc.update_binary('0001', p['ki'], 3)

		# select DF_TELECOM
		r = self._scc.select_file(['3f00', '7f10'])
		
		# write EF.SMSP
		data, sw = self._scc.update_record('6f42', 1, lpad(p['smsp'], 80))

	def erase(self):
		return

class SysmoUSIMSJS1(Card):
	"""
	sysmocom sysmoUSIM-SJS1
	"""

	name = 'sysmoUSIM-SJS1'

	def __init__(self, ssc):
		super(SysmoUSIMSJS1, self).__init__(ssc)
		self._scc.cla_byte = "00"
		self._scc.sel_ctrl = "000C"

	@classmethod
	def autodetect(kls, scc):
		try:
			# Look for ATR
			if scc.get_atr() == toBytes("3B 9F 96 80 1F C7 80 31 A0 73 BE 21 13 67 43 20 07 18 00 00 01 A5"):
				return kls(scc)
		except:
			return None
		return None

	def program(self, p):

		# authenticate as ADM using default key (written on the card..)
		if not p['pin_adm']:
			raise ValueError("Please provide a PIN-ADM as there is no default one")
		self._scc.verify_chv(0x0A, h2b(p['pin_adm']))

		# select MF
		r = self._scc.select_file(['3f00'])

		# write EF.ICCID
		data, sw = self._scc.update_binary('2fe2', enc_iccid(p['iccid']))

		# select DF_GSM
		r = self._scc.select_file(['7f20'])

		# set Ki in proprietary file
		data, sw = self._scc.update_binary('00FF', p['ki'])

		# set Ki in proprietary file
		content = "01" + p['opc']
		data, sw = self._scc.update_binary('00F7', content)


		# write EF.IMSI
		data, sw = self._scc.update_binary('6f07', enc_imsi(p['imsi']))

		# EF.SMSP
		r = self._scc.select_file(['3f00', '7f10'])
		data, sw = self._scc.update_record('6f42', 1, lpad(p['smsp'], 104), force_len=True)


	def erase(self):
		return



	# In order for autodetection ...
_cards_classes = [ FakeMagicSim, SuperSim, MagicSim, GrcardSim,
		   SysmoSIMgr1, SysmoSIMgr2, SysmoUSIMgr1, SysmoUSIMSJS1 ]

def card_autodetect(scc):
	for kls in _cards_classes:
		card = kls.autodetect(scc)
		if card is not None:
			card.reset()
			return card
	return None