168 lines
5.4 KiB
Python
168 lines
5.4 KiB
Python
# -*- coding: UTF-8 -*-
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#/**
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# * Software Name : pycrate
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# * Version : 0.2
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# *
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# * Copyright 2017. Benoit Michau. ANSSI.
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# *
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# * This program is free software; you can redistribute it and/or
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# * modify it under the terms of the GNU General Public License
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# * as published by the Free Software Foundation; either version 2
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# * of the License, or (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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# * You should have received a copy of the GNU General Public License
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# * along with this program; if not, write to the Free Software
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# * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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# * 02110-1301, USA.
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# *
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# *--------------------------------------------------------
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# * File Name : pycrate_mobile/TS24301_IE.py
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# * Created : 2017-06-08
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# * Authors : Benoit Michau
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# *--------------------------------------------------------
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#*/
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#------------------------------------------------------------------------------#
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# 3GPP TS 24.301: NAS protocol for EPS
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# release 13 (da0)
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#------------------------------------------------------------------------------#
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from binascii import unhexlify
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from pycrate_core.utils import *
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from pycrate_core.elt import Envelope, Array, REPR_RAW, REPR_HEX, REPR_BIN, REPR_HD, REPR_HUM
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from pycrate_core.base import *
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from pycrate_core.repr import *
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from pycrate_core.charpy import Charpy
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from pycrate_mobile.MCC_MNC import MNC_dict
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#------------------------------------------------------------------------------#
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# Additional update type
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# TS 24.301, 9.9.3.0B
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#------------------------------------------------------------------------------#
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_PNBCIoT_dict = {
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0 : 'no additional information',
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1 : 'control plane CIoT EPS optimization',
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2 : 'user plane CIoT EPS optimization',
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3 : 'reserved'
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}
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_SAF_dict = {
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0: 'NAS signalling not required after completion of TAU',
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1: 'NAS signalling required after completion of TAU'
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}
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_AUTV_dict = {
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1 : 'SMS only'
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}
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class AddUpdateType(Envelope):
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_GEN = (
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Uint('PNB_CIoT', val=0, bl=2, dic=_PNBCIoT_dict),
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Uint('SAF', val=0, bl=1, dic=_SAF_dict),
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Uint('AUTV', val=0, bl=1, dic=_AUTV_dict)
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)
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#------------------------------------------------------------------------------#
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# UE network capability
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# TS 24.301, 9.9.3.34
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#------------------------------------------------------------------------------#
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class UENetCap(Envelope):
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ENV_SEL_TRANS = False
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_GEN = (
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Uint('EEA0', bl=1),
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Uint('EEA1_128', bl=1),
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Uint('EEA2_128', bl=1),
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Uint('EEA3_128', bl=1),
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Uint('EEA4', bl=1),
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Uint('EEA5', bl=1),
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Uint('EEA6', bl=1),
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Uint('EEA7', bl=1),
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Uint('EIA0', bl=1),
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Uint('EIA1_128', bl=1),
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Uint('EIA2_128', bl=1),
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Uint('EIA3_128', bl=1),
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Uint('EIA4', bl=1),
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Uint('EIA5', bl=1),
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Uint('EIA6', bl=1),
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Uint('EIA7', bl=1), # end of octet 2 (mandatory part)
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Uint('UEA0', bl=1),
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Uint('UEA1', bl=1),
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Uint('UEA2', bl=1),
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Uint('UEA3', bl=1),
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Uint('UEA4', bl=1),
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Uint('UEA5', bl=1),
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Uint('UEA6', bl=1),
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Uint('UEA7', bl=1), # end of octet 3
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Uint('UCS2', bl=1),
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Uint('UIA1', bl=1),
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Uint('UIA2', bl=1),
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Uint('UIA3', bl=1),
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Uint('UIA4', bl=1),
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Uint('UIA5', bl=1),
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Uint('UIA6', bl=1),
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Uint('UIA7', bl=1), # end of octet 4
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Uint('ProSe_dd', bl=1),
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Uint('ProSe', bl=1),
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Uint('H245_ASH', bl=1),
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Uint('ACC_CSFB', bl=1),
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Uint('LPP', bl=1),
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Uint('LCS', bl=1),
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Uint('X1_SRVCC', bl=1),
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Uint('NF', bl=1), # end of octet 5
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Uint('ePCO', bl=1),
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Uint('HC_CP_CIoT', bl=1),
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Uint('ERw_oPDN', bl=1),
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Uint('S1U_data', bl=1),
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Uint('UP_CIoT', bl=1),
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Uint('CP_CIoT', bl=1),
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Uint('ProSe_relay', bl=1),
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Uint('ProSe_dc', bl=1), # end of octet 6
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Uint('spare', bl=1),
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Uint('spare', bl=1),
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Uint('spare', bl=1),
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Uint('spare', bl=1),
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Uint('spare', bl=1),
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Uint('spare', bl=1),
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Uint('spare', bl=1),
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Uint('MultiDRB', bl=1), # end of octet 7
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Buf('spare', val=b'', rep=REPR_HEX) # from 0 to 6 bytes
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)
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def _from_char(self, char):
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l = char.len_bit()
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if l <= 56:
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# disable all elements after bit l
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self.disable_from(l)
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elif l > 56:
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# enables some spare bits at the end
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self[-1]._bl = l-56
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Envelope._from_char(self, char)
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def disable_from(self, ind):
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"""disables all elements from index `ind' excluded (integer -bit offset-
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or element name)
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"""
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if isinstance(ind, str_types) and ind in self._by_name:
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ind = self._by_name.index(ind)
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[e.set_trans(True) for e in self._content[ind:]]
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def enable_upto(self, ind):
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"""enables all elements up to index `ind' included (integer -bit offset-
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or element name)
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"""
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if isinstance(ind, str_types) and ind in self._by_name:
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ind = 1 + self._by_name.index(ind)
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[e.set_trans(False) for e in self._content[:ind]]
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