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pysim/tests/unittests/test_utils.py
Philipp Maier 852eff54df pySim/transport add support for T=1 protocol and fix APDU/TPDU layer conflicts 
ETSI TS 102 221, section 7.3 specifies that UICCs (and eUICCs) may support two
different transport protocols: T=0 or T=1 or both. The spec also says that the
terminal must support both protocols.

This patch adds the necessary functionality to support the T=1 protocol
alongside the T=0 protocol. However, this also means that we have to sharpen
the lines between APDUs and TPDUs.

As this patch also touches the low level interface to readers it was also
manually tested with a classic serial reader. Calypso and AT command readers
were not tested.

Change-Id: I8b56d7804a2b4c392f43f8540e0b6e70001a8970
Related: OS#6367
2024-11-19 10:56:26 +01:00

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#!/usr/bin/env python3
import unittest
from pySim import utils
from pySim.legacy import utils as legacy_utils
from pySim.ts_31_102 import EF_SUCI_Calc_Info
from osmocom.utils import h2b
# we don't really want to thest TS 102 221, but the underlying DataObject codebase
from pySim.ts_102_221 import AM_DO_EF, AM_DO_DF, SC_DO
class DoTestCase(unittest.TestCase):
def testSeqOfChoices(self):
"""A sequence of two choices with each a variety of DO/TLVs"""
arr_seq = utils.DataObjectSequence('arr', sequence=[AM_DO_EF, SC_DO])
# input data
dec_in = [{'access_mode': ['update_erase', 'read_search_compare']}, {'control_reference_template':'PIN1'}]
# encode it once
encoded = arr_seq.encode(dec_in)
# decode again
re_decoded = arr_seq.decode(encoded)
self.assertEqual(dec_in, re_decoded[0])
class DecTestCase(unittest.TestCase):
# TS33.501 Annex C.4 test keys
hnet_pubkey_profile_b = "0272DA71976234CE833A6907425867B82E074D44EF907DFB4B3E21C1C2256EBCD1" # ID 27 in test file
hnet_pubkey_profile_a = "5A8D38864820197C3394B92613B20B91633CBD897119273BF8E4A6F4EEC0A650" # ID 30 in test file
# TS31.121 4.9.4 EF_SUCI_Calc_Info test file
testfile_suci_calc_info = "A006020101020000A14B80011B8121" +hnet_pubkey_profile_b +"80011E8120" +hnet_pubkey_profile_a
decoded_testfile_suci = {
'prot_scheme_id_list': [
{'priority': 0, 'identifier': 2, 'key_index': 1},
{'priority': 1, 'identifier': 1, 'key_index': 2},
{'priority': 2, 'identifier': 0, 'key_index': 0}],
'hnet_pubkey_list': [
{'hnet_pubkey_identifier': 27, 'hnet_pubkey': hnet_pubkey_profile_b.lower()}, # because h2b/b2h returns all lower-case
{'hnet_pubkey_identifier': 30, 'hnet_pubkey': hnet_pubkey_profile_a.lower()}]
}
def testSplitHexStringToListOf5ByteEntries(self):
input_str = "ffffff0003ffffff0002ffffff0001"
expected = [
"ffffff0003",
"ffffff0002",
"ffffff0001",
]
self.assertEqual(legacy_utils.hexstr_to_Nbytearr(input_str, 5), expected)
def testDecMCCfromPLMN(self):
self.assertEqual(utils.dec_mcc_from_plmn("92f501"), 295)
def testDecMCCfromPLMN_unused(self):
self.assertEqual(utils.dec_mcc_from_plmn("ff0f00"), 4095)
def testDecMCCfromPLMN_str(self):
self.assertEqual(utils.dec_mcc_from_plmn_str("92f501"), "295")
def testDecMCCfromPLMN_unused_str(self):
self.assertEqual(utils.dec_mcc_from_plmn_str("ff0f00"), "")
def testDecMNCfromPLMN_twoDigitMNC(self):
self.assertEqual(utils.dec_mnc_from_plmn("92f501"), 10)
def testDecMNCfromPLMN_threeDigitMNC(self):
self.assertEqual(utils.dec_mnc_from_plmn("031263"), 361)
def testDecMNCfromPLMN_unused(self):
self.assertEqual(utils.dec_mnc_from_plmn("00f0ff"), 4095)
def testDecMNCfromPLMN_twoDigitMNC_str(self):
self.assertEqual(utils.dec_mnc_from_plmn_str("92f501"), "10")
def testDecMNCfromPLMN_threeDigitMNC_str(self):
self.assertEqual(utils.dec_mnc_from_plmn_str("031263"), "361")
def testDecMNCfromPLMN_unused_str(self):
self.assertEqual(utils.dec_mnc_from_plmn_str("00f0ff"), "")
def test_enc_plmn(self):
with self.subTest("2-digit MCC"):
self.assertEqual(utils.enc_plmn("001", "01F"), "00F110")
self.assertEqual(utils.enc_plmn("001", "01"), "00F110")
self.assertEqual(utils.enc_plmn("295", "10"), "92F501")
with self.subTest("3-digit MCC"):
self.assertEqual(utils.enc_plmn("001", "001"), "001100")
self.assertEqual(utils.enc_plmn("302", "361"), "031263")
def testDecAct_noneSet(self):
self.assertEqual(utils.dec_act("0000"), [])
def testDecAct_onlyUtran(self):
self.assertEqual(utils.dec_act("8000"), ["UTRAN"])
def testDecAct_onlyEUtran(self):
self.assertEqual(utils.dec_act("4000"), ["E-UTRAN NB-S1", "E-UTRAN WB-S1"])
def testDecAct_onlyNgRan(self):
self.assertEqual(utils.dec_act("0800"), ["NG-RAN"])
def testDecAct_onlyGsm(self):
self.assertEqual(utils.dec_act("0084"), ["GSM"])
def testDecAct_onlyGsmCompact(self):
self.assertEqual(utils.dec_act("0040"), ["GSM COMPACT"])
def testDecAct_onlyCdma2000HRPD(self):
self.assertEqual(utils.dec_act("0020"), ["cdma2000 HRPD"])
def testDecAct_onlyCdma20001xRTT(self):
self.assertEqual(utils.dec_act("0010"), ["cdma2000 1xRTT"])
def testDecAct_allSet(self):
self.assertEqual(utils.dec_act("ffff"), ['E-UTRAN NB-S1', 'E-UTRAN WB-S1', 'EC-GSM-IoT', 'GSM', 'GSM COMPACT', 'NG-RAN', 'UTRAN', 'cdma2000 1xRTT', 'cdma2000 HRPD'])
def testDecxPlmn_w_act(self):
expected = {'mcc': '295', 'mnc': '10', 'act': ["UTRAN"]}
self.assertEqual(utils.dec_xplmn_w_act("92f5018000"), expected)
def testFormatxPlmn_w_act(self):
input_str = "92f501800092f5508000ffffff0000ffffff0000ffffff0000ffffff0000ffffff0000ffffff0000ffffff0000ffffff0000"
expected = "\t92f5018000 # MCC: 295 MNC: 10 AcT: UTRAN\n"
expected += "\t92f5508000 # MCC: 295 MNC: 05 AcT: UTRAN\n"
expected += "\tffffff0000 # unused\n"
expected += "\tffffff0000 # unused\n"
expected += "\tffffff0000 # unused\n"
expected += "\tffffff0000 # unused\n"
expected += "\tffffff0000 # unused\n"
expected += "\tffffff0000 # unused\n"
expected += "\tffffff0000 # unused\n"
expected += "\tffffff0000 # unused\n"
self.assertEqual(legacy_utils.format_xplmn_w_act(input_str), expected)
def testDecodeSuciCalcInfo(self):
suci_calc_info = EF_SUCI_Calc_Info()
decoded = suci_calc_info.decode_hex(self.testfile_suci_calc_info)
self.assertDictEqual(self.decoded_testfile_suci, decoded)
def testEncodeSuciCalcInfo(self):
suci_calc_info = EF_SUCI_Calc_Info()
encoded = suci_calc_info.encode_hex(self.decoded_testfile_suci)
self.assertEqual(encoded.lower(), self.testfile_suci_calc_info.lower())
def testEnc_msisdn(self):
msisdn_encoded = legacy_utils.enc_msisdn("+4916012345678", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "0891946110325476f8ffffffffff")
msisdn_encoded = legacy_utils.enc_msisdn("123456", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "04b1214365ffffffffffffffffff")
msisdn_encoded = legacy_utils.enc_msisdn("12345678901234567890", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "0bb121436587092143658709ffff")
msisdn_encoded = legacy_utils.enc_msisdn("+12345678901234567890", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "0b9121436587092143658709ffff")
msisdn_encoded = legacy_utils.enc_msisdn("", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "ffffffffffffffffffffffffffff")
msisdn_encoded = legacy_utils.enc_msisdn("+", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "ffffffffffffffffffffffffffff")
def testDec_msisdn(self):
msisdn_decoded = legacy_utils.dec_msisdn("0891946110325476f8ffffffffff")
self.assertEqual(msisdn_decoded, (1, 1, "+4916012345678"))
msisdn_decoded = legacy_utils.dec_msisdn("04b1214365ffffffffffffffffff")
self.assertEqual(msisdn_decoded, (1, 3, "123456"))
msisdn_decoded = legacy_utils.dec_msisdn("0bb121436587092143658709ffff")
self.assertEqual(msisdn_decoded, (1, 3, "12345678901234567890"))
msisdn_decoded = legacy_utils.dec_msisdn("ffffffffffffffffffffffffffff")
self.assertEqual(msisdn_decoded, None)
msisdn_decoded = legacy_utils.dec_msisdn("00112233445566778899AABBCCDDEEFF001122330bb121436587092143658709ffff")
self.assertEqual(msisdn_decoded, (1, 3, "12345678901234567890"))
msisdn_decoded = legacy_utils.dec_msisdn("ffffffffffffffffffffffffffffffffffffffff0bb121436587092143658709ffff")
self.assertEqual(msisdn_decoded, (1, 3, "12345678901234567890"))
class TestLuhn(unittest.TestCase):
def test_verify(self):
utils.verify_luhn('8988211000000530082')
def test_encode(self):
self.assertEqual(utils.calculate_luhn('898821100000053008'), 2)
def test_sanitize_iccid(self):
# 19 digits with correct luhn; we expect no change
self.assertEqual(utils.sanitize_iccid('8988211000000530082'), '8988211000000530082')
# 20 digits with correct luhn; we expect no change
self.assertEqual(utils.sanitize_iccid('89882110000005300811'), '89882110000005300811')
# 19 digits without correct luhn; we expect check digit to be added
self.assertEqual(utils.sanitize_iccid('8988211000000530081'), '89882110000005300811')
# 18 digits; we expect luhn check digit to be added
self.assertEqual(utils.sanitize_iccid('898821100000053008'), '8988211000000530082')
class TestUtils(unittest.TestCase):
def test_parse_command_apdu(self):
# Case #1 APDU:
self.assertEqual(utils.parse_command_apdu(h2b('41414141')), (1,0,0,h2b('')))
# Case #2 APDU:
self.assertEqual(utils.parse_command_apdu(h2b('414141410F')), (2,0,15,h2b('')))
self.assertEqual(utils.parse_command_apdu(h2b('4141414100')), (2,0,256,h2b('')))
# Case #3 APDU:
self.assertEqual(utils.parse_command_apdu(h2b('41414141081122334455667788')), (3,8,0,h2b('1122334455667788')))
self.assertEqual(utils.parse_command_apdu(h2b('4141414100' + 256 * '42')), (3,256,0,h2b(256 * '42')))
# Case #4 APDU:
self.assertEqual(utils.parse_command_apdu(h2b('4141414108112233445566778804')), (4,8,4,h2b('1122334455667788')))
self.assertEqual(utils.parse_command_apdu(h2b('4141414100' + 256 * '42' + '00')), (4,256,256,h2b(256 * '42')))
if __name__ == "__main__":
unittest.main()
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