laforge has uploaded this change for review. ( https://gerrit.osmocom.org/c/pysim/+/34957?usp=email ) Change subject: Use construct 'Flag' instead of 'Bit' for type descriptions ...................................................................... Use construct 'Flag' instead of 'Bit' for type descriptions It's better for the human reader (and more obvious that it's a boolean value) if we decode single Bits as True/False instead of 1/0. Change-Id: Ib025f9c4551af7cf57090a0678ab0f66a6684fa4 --- M pySim/sysmocom_sja2.py M pySim/ts_31_102.py 2 files changed, 32 insertions(+), 19 deletions(-) git pull ssh://gerrit.osmocom.org:29418/pysim refs/changes/57/34957/1 diff --git a/pySim/sysmocom_sja2.py b/pySim/sysmocom_sja2.py index bd9e8a8..8073e74 100644 --- a/pySim/sysmocom_sja2.py +++ b/pySim/sysmocom_sja2.py @@ -140,14 +140,14 @@ class EF_SIM_AUTH_KEY(TransparentEF): _test_de_encode = [ ( '14000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f', - {"cfg": {"use_sres_deriv_func_2": 0, "use_opc_instead_of_op": 1, "algorithm": "milenage"}, "key": + {"cfg": {"use_sres_deriv_func_2": False, "use_opc_instead_of_op": True, "algorithm": "milenage"}, "key": "000102030405060708090a0b0c0d0e0f", "op_opc": "101112131415161718191a1b1c1d1e1f"} ), ] def __init__(self, fid='6f20', name='EF.SIM_AUTH_KEY'): super().__init__(fid, name=name, desc='USIM authentication key') CfgByte = BitStruct(Padding(2), - 'use_sres_deriv_func_2'/Bit, - 'use_opc_instead_of_op'/Bit, + 'use_sres_deriv_func_2'/Flag, + 'use_opc_instead_of_op'/Flag, 'algorithm'/Enum(Nibble, milenage=4, comp128v1=1, comp128v2=2, comp128v3=3)) self._construct = Struct('cfg'/CfgByte, 'key'/HexAdapter(Bytes(16)), @@ -181,19 +181,19 @@ class EF_USIM_SQN(TransparentEF): _test_de_encode = [ ( 'd503000200000000000200000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000', - {"flag1": {"skip_next_sqn_check": 1, "delta_max_check": 1, "age_limit_check": 0, "sqn_check": 1, - "ind_len": 5}, "flag2": {"rfu": 0, "dont_clear_amf_for_macs": 0, "aus_concealed": 1, - "autn_concealed": 1}, "delta_max": 8589934592, "age_limit": + {"flag1": {"skip_next_sqn_check": True, "delta_max_check": True, "age_limit_check": False, "sqn_check": True, + "ind_len": 5}, "flag2": {"rfu": 0, "dont_clear_amf_for_macs": False, "aus_concealed": True, + "autn_concealed": True}, "delta_max": 8589934592, "age_limit": 8589934592, "freshness": [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0]} ), ] def __init__(self, fid='af30', name='EF.USIM_SQN'): super().__init__(fid, name=name, desc='SQN parameters for AKA') - Flag1 = BitStruct('skip_next_sqn_check'/Bit, 'delta_max_check'/Bit, - 'age_limit_check'/Bit, 'sqn_check'/Bit, + Flag1 = BitStruct('skip_next_sqn_check'/Flag, 'delta_max_check'/Flag, + 'age_limit_check'/Flag, 'sqn_check'/Flag, 'ind_len'/BitsInteger(4)) - Flag2 = BitStruct('rfu'/BitsRFU(5), 'dont_clear_amf_for_macs'/Bit, - 'aus_concealed'/Bit, 'autn_concealed'/Bit) + Flag2 = BitStruct('rfu'/BitsRFU(5), 'dont_clear_amf_for_macs'/Flag, + 'aus_concealed'/Flag, 'autn_concealed'/Flag) self._construct = Struct('flag1'/Flag1, 'flag2'/Flag2, 'delta_max' / BytesInteger(6), 'age_limit'/BytesInteger(6), @@ -204,8 +204,8 @@ def __init__(self, fid='af20', name='EF.USIM_AUTH_KEY'): super().__init__(fid, name=name, desc='USIM authentication key') Algorithm = Enum(Nibble, milenage=4, sha1_aka=5, tuak=6, xor=15) - CfgByte = BitStruct(Padding(1), 'only_4bytes_res_in_3g'/Bit, - 'sres_deriv_func_2_in_3g'/Mapping(Bit, {1:0, 2:1}), + CfgByte = BitStruct(Padding(1), 'only_4bytes_res_in_3g'/Flag, + 'sres_deriv_func_2_in_3g'/Mapping(Bit, {1:False, 2:True}), 'use_opc_instead_of_op'/Mapping(Bit, {False:0, True:1}), 'algorithm'/Algorithm) self._construct = Struct('cfg'/CfgByte, @@ -216,7 +216,7 @@ # the TUAK and non-TUAK situation CfgByteTuak = BitStruct(Padding(1), 'key_length'/Mapping(Bit, {128:0, 256:1}), - 'sres_deriv_func_in_3g'/Mapping(Bit, {1:0, 2:1}), + 'sres_deriv_func_in_3g'/Mapping(Bit, {1:False, 2:True}), 'use_opc_instead_of_op'/Mapping(Bit, {False:0, True:1}), 'algorithm'/Algorithm) TuakCfgByte = BitStruct(Padding(1), @@ -245,15 +245,15 @@ class EF_USIM_AUTH_KEY_2G(TransparentEF): _test_de_encode = [ ( '14000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f', - {"cfg": {"only_4bytes_res_in_3g": 0, "use_sres_deriv_func_2_in_3g": 0, "use_opc_instead_of_op": 1, + {"cfg": {"only_4bytes_res_in_3g": False, "use_sres_deriv_func_2_in_3g": False, "use_opc_instead_of_op": True, "algorithm": "milenage"}, "key": "000102030405060708090a0b0c0d0e0f", "op_opc": "101112131415161718191a1b1c1d1e1f"} ), ] def __init__(self, fid='af22', name='EF.USIM_AUTH_KEY_2G'): super().__init__(fid, name=name, desc='USIM authentication key in 2G context') - CfgByte = BitStruct(Padding(1), 'only_4bytes_res_in_3g'/Bit, - 'use_sres_deriv_func_2_in_3g'/Bit, - 'use_opc_instead_of_op'/Bit, + CfgByte = BitStruct(Padding(1), 'only_4bytes_res_in_3g'/Flag, + 'use_sres_deriv_func_2_in_3g'/Flag, + 'use_opc_instead_of_op'/Flag, 'algorithm'/Enum(Nibble, milenage=4, comp128v1=1, comp128v2=2, comp128v3=3, xor=14)) self._construct = Struct('cfg'/CfgByte, 'key'/HexAdapter(Bytes(16)), @@ -322,6 +322,7 @@ rs.mf.add_file(DF_SYSTEM()) # optional USIM application if 'a0000000871002' in rs.mf.applications: + print("#####################") usim_adf = rs.mf.applications['a0000000871002'] files_adf_usim = [ EF_USIM_AUTH_KEY(), diff --git a/pySim/ts_31_102.py b/pySim/ts_31_102.py index cd0d99c..738f107 100644 --- a/pySim/ts_31_102.py +++ b/pySim/ts_31_102.py @@ -889,14 +889,14 @@ def __init__(self, fid='6ff7', sfid=None, name='EF.FromPreferred', size=(1, 1), desc='From Preferred', **kwargs): super().__init__(fid, sfid=sfid, name=name, desc=desc, size=size, **kwargs) - self._construct = BitStruct('rfu'/BitsRFU(7), 'from_preferred'/Bit) + self._construct = BitStruct('rfu'/BitsRFU(7), 'from_preferred'/Flag) # TS 31.102 Section 4.2.114 class EF_eAKA(TransparentEF): def __init__(self, fid='6f01', sfid=None, name='EF.eAKA', size=(1, 1), desc='enhanced AKA support', **kwargs): super().__init__(fid, sfid=sfid, name=name, desc=desc, size=size, **kwargs) - self._construct = BitStruct('rfu'/BitsRFU(7), 'enhanced_sqn_calculation_supported'/Bit) + self._construct = BitStruct('rfu'/BitsRFU(7), 'enhanced_sqn_calculation_supported'/Flag) ###################################################################### -- To view, visit https://gerrit.osmocom.org/c/pysim/+/34957?usp=email To unsubscribe, or for help writing mail filters, visit https://gerrit.osmocom.org/settings Gerrit-Project: pysim Gerrit-Branch: master Gerrit-Change-Id: Ib025f9c4551af7cf57090a0678ab0f66a6684fa4 Gerrit-Change-Number: 34957 Gerrit-PatchSet: 1 Gerrit-Owner: laforge <laforge(a)osmocom.org> Gerrit-MessageType: newchange