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890e1951fef767dd1699a66624a895e930d86d15
pysim-local/tests/test_utils.py
Harald Welte 1f7a9bd5b4 TLV: Add DGI encoding of "GP Scripting Language Annex B" 
The DGI encoding is specified in Annex B of the
"GlobalPlatform Systems Scripting Language Specification v1.1.0"

which is an "archived" specification that is no longer published
by GlobalPlatform, despite it being referenced from the GlobalPlatform
Card Specification v2.3, which is the basis of the GSMA eSIM
specifications.

For some reason it was the belief of the specification authors that
yet another format of TLV encoding is needed, in addition to the BER-TLV
and COMPREHENSION-TLV used by the very same specifications.

The encoding of the tag is not really specified anywhere, but I've only
seen 16-bit examples.  The encoding of the length is specified and
implemented here accordingly.

Change-Id: Ie29ab7eb39f3165f3d695fcc1f02051338095697
2024-01-14 17:42:01 +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
# 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 = utils.enc_msisdn("+4916012345678", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "0891946110325476f8ffffffffff")
msisdn_encoded = utils.enc_msisdn("123456", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "04b1214365ffffffffffffffffff")
msisdn_encoded = utils.enc_msisdn("12345678901234567890", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "0bb121436587092143658709ffff")
msisdn_encoded = utils.enc_msisdn("+12345678901234567890", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "0b9121436587092143658709ffff")
msisdn_encoded = utils.enc_msisdn("", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "ffffffffffffffffffffffffffff")
msisdn_encoded = utils.enc_msisdn("+", npi=0x01, ton=0x03)
self.assertEqual(msisdn_encoded, "ffffffffffffffffffffffffffff")
def testDec_msisdn(self):
msisdn_decoded = utils.dec_msisdn("0891946110325476f8ffffffffff")
self.assertEqual(msisdn_decoded, (1, 1, "+4916012345678"))
msisdn_decoded = utils.dec_msisdn("04b1214365ffffffffffffffffff")
self.assertEqual(msisdn_decoded, (1, 3, "123456"))
msisdn_decoded = utils.dec_msisdn("0bb121436587092143658709ffff")
self.assertEqual(msisdn_decoded, (1, 3, "12345678901234567890"))
msisdn_decoded = utils.dec_msisdn("ffffffffffffffffffffffffffff")
self.assertEqual(msisdn_decoded, None)
msisdn_decoded = utils.dec_msisdn("00112233445566778899AABBCCDDEEFF001122330bb121436587092143658709ffff")
self.assertEqual(msisdn_decoded, (1, 3, "12345678901234567890"))
msisdn_decoded = utils.dec_msisdn("ffffffffffffffffffffffffffffffffffffffff0bb121436587092143658709ffff")
self.assertEqual(msisdn_decoded, (1, 3, "12345678901234567890"))
class TestBerTlv(unittest.TestCase):
def test_BerTlvTagDec(self):
res = utils.bertlv_parse_tag(b'\x01')
self.assertEqual(res, ({'tag':1, 'constructed':False, 'class': 0}, b''))
res = utils.bertlv_parse_tag(b'\x21')
self.assertEqual(res, ({'tag':1, 'constructed':True, 'class': 0}, b''))
res = utils.bertlv_parse_tag(b'\x81\x23')
self.assertEqual(res, ({'tag':1, 'constructed':False, 'class': 2}, b'\x23'))
res = utils.bertlv_parse_tag(b'\x1f\x8f\x00\x23')
self.assertEqual(res, ({'tag':0xf<<7, 'constructed':False, 'class': 0}, b'\x23'))
def test_BerTlvLenDec(self):
self.assertEqual(utils.bertlv_encode_len(1), b'\x01')
self.assertEqual(utils.bertlv_encode_len(127), b'\x7f')
self.assertEqual(utils.bertlv_encode_len(128), b'\x81\x80')
self.assertEqual(utils.bertlv_encode_len(0x123456), b'\x83\x12\x34\x56')
def test_BerTlvLenEnc(self):
self.assertEqual(utils.bertlv_parse_len(b'\x01\x23'), (1, b'\x23'))
self.assertEqual(utils.bertlv_parse_len(b'\x7f'), (127, b''))
self.assertEqual(utils.bertlv_parse_len(b'\x81\x80'), (128, b''))
self.assertEqual(utils.bertlv_parse_len(b'\x83\x12\x34\x56\x78'), (0x123456, b'\x78'))
def test_BerTlvParseOne(self):
res = utils.bertlv_parse_one(b'\x81\x01\x01');
self.assertEqual(res, ({'tag':1, 'constructed':False, 'class':2}, 1, b'\x01', b''))
class TestComprTlv(unittest.TestCase):
def test_ComprTlvTagDec(self):
res = utils.comprehensiontlv_parse_tag(b'\x12\x23')
self.assertEqual(res, ({'tag': 0x12, 'comprehension': False}, b'\x23'))
res = utils.comprehensiontlv_parse_tag(b'\x92')
self.assertEqual(res, ({'tag': 0x12, 'comprehension': True}, b''))
res = utils.comprehensiontlv_parse_tag(b'\x7f\x12\x34')
self.assertEqual(res, ({'tag': 0x1234, 'comprehension': False}, b''))
res = utils.comprehensiontlv_parse_tag(b'\x7f\x82\x34\x56')
self.assertEqual(res, ({'tag': 0x234, 'comprehension': True}, b'\x56'))
def test_ComprTlvTagEnc(self):
res = utils.comprehensiontlv_encode_tag(0x12)
self.assertEqual(res, b'\x12')
res = utils.comprehensiontlv_encode_tag({'tag': 0x12})
self.assertEqual(res, b'\x12')
res = utils.comprehensiontlv_encode_tag({'tag': 0x12, 'comprehension':True})
self.assertEqual(res, b'\x92')
res = utils.comprehensiontlv_encode_tag(0x1234)
self.assertEqual(res, b'\x7f\x12\x34')
res = utils.comprehensiontlv_encode_tag({'tag': 0x1234, 'comprehension':True})
self.assertEqual(res, b'\x7f\x92\x34')
class TestDgiTlv(unittest.TestCase):
def test_DgiTlvLenEnc(self):
self.assertEqual(utils.dgi_encode_len(10), b'\x0a')
self.assertEqual(utils.dgi_encode_len(254), b'\xfe')
self.assertEqual(utils.dgi_encode_len(255), b'\xff\x00\xff')
self.assertEqual(utils.dgi_encode_len(65535), b'\xff\xff\xff')
with self.assertRaises(ValueError):
utils.dgi_encode_len(65536)
def testDgiTlvLenDec(self):
self.assertEqual(utils.dgi_parse_len(b'\x0a\x0b'), (10, b'\x0b'))
self.assertEqual(utils.dgi_parse_len(b'\xfe\x0b'), (254, b'\x0b'))
self.assertEqual(utils.dgi_parse_len(b'\xff\x00\xff\x0b'), (255, b'\x0b'))
if __name__ == "__main__":
unittest.main()
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