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eNB_LOCAL.py
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import random
import socket
import struct
import time
import select
from optparse import OptionParser
from pycrate_asn1dir import S1AP
from pycrate_asn1rt.utils import *
from binascii import hexlify, unhexlify
from CryptoMobile.CM import *
from CryptoMobile.Milenage import Milenage
from Crypto.Hash import HMAC
from Crypto.Hash import SHA256
import sys
import fcntl
import os
import subprocess
from threading import Thread
import datetime
import eNAS, eMENU
#tries to import all options for retrieving IMSI, and RES, CK and IK from USIM.
#if all fails, return_imsi and return_res_ck_ik will return None, so local values will be used.
try:
import serial
except:
pass
try:
from smartcard.System import readers
from smartcard.util import toHexString,toBytes
try:
from card.USIM import *
except:
pass
except:
pass
try:
import requests
requests.packages.urllib3.disable_warnings()
except:
pass
PLMN = '12345'
IMSI = PLMN + '1234567890'
IMEISV = '1234567890123456'
IMEI = '123456789012347'
APN = 'internet'
#Examples. Customize at your needs
NON_IP_PACKET_1 = '0102030405060708090a'
NON_IP_PACKET_2 = '0102030405060708090a0102030405060708090a'
NON_IP_PACKET_3 = '0102030405060708090a0102030405060708090a0102030405060708090a'
NON_IP_PACKET_4 = '0102030405060708090a0102030405060708090a0102030405060708090a0102030405060708090a'
# session_dict structure
#
# session_dict['STATE'] = 0
#
# enb info:
# session_dict['ENB-UE-S1AP-ID']
# session_dict['ENB-NAME'] = string with enb nasme
# session_dict['ENB-PLMN'] = plmn
# session_dict['ENB-TAC'] = tac
# session_dict['ENB-ID'] = enb_id
# session_dict['ENB-CELLID'] = enb cellid
# session_dict['ENB-GTP-ADDRESS-INT'] = ip address in integer format to use directly in s1ap
#
# security:
# session_dict['ENC-ALG'] = encryption algorithm 0 to 3
# session_dict['INT-ALG'] = integrity algorithm 1 to 3
# session_dict['ENC-KEY'] = encryption key
# session_dict['INT-KEY'] = integrity key
# session_dict['XRES'] = xres
# session_dict['KASME'] = kasme
# session_dict['NAS-KEY-EEA1']
# session_dict['NAS-KEY-EEA2']
# session_dict['NAS-KEY-EEA3']
# session_dict['NAS-KEY-EIA1']
# session_dict['NAS-KEY-EIA2']
# session_dict['NAS-KEY-EIA3']
# mme info:
# session_dict['MME-NAME'] = mme_name
# session_dict['MME-PLMN'] = servedPLMNs
# session_dict['MME-GROUP-ID'] = servedGroupIDs
# session_dict['MME-CODE'] = servedMMECs
# session_dict['MME-RELATIVE-CAPACITY'] 0 relative capacity
# session_dict['MME-UE-S1AP-ID'] = mme_ue_s1ap_id
#
# nas:
# session_dict['NAS'] = full nas_pdu (either received or to ber sent, header, mac, sqn, and nas ecnrypted or not)
# session_dict['NAS-ENC'] = nas_pdu encrypted (either received or to ber sent, and can be ecnrypted)
# session_dict['UP-COUNT'] = count (integer) . sqn is the last byte %256
# session_dict['DOWN-COUNT'] = count (integer) . sqn is the last byte %256. from the received
# session_dict['DIR'] = 0 or 1 direction 0 uplink, 1 downlink
#
# session_dict['NAS-SMS-MT'] = nas for Answering to SMS-MT
######################################################################################################################################
# GENERAL PROCEDURES: #
######################################################################################################################################
def session_dict_initialization(session_dict):
session_dict['STATE'] = 0
session_dict['ENB-UE-S1AP-ID'] = 1000
session_dict['ENB-NAME'] = 'Fabricio-eNB'
session_dict['ENB-PLMN'] = return_plmn_s1ap(session_dict['PLMN'])
session_dict['XRES'] = b'xresxres'
session_dict['KASME'] = b'kasme kasme kasme kasme '
# hex: 6b61736d652020206b61736d652020206b61736d652020206b61736d65202020
session_dict['ENB-GTP-ADDRESS-INT'] = ''
session_dict['RAB-ID'] = []
session_dict['SGW-GTP-ADDRESS'] = []
session_dict['SGW-TEID'] = []
session_dict['EPS-BEARER-IDENTITY'] = []
session_dict['EPS-BEARER-TYPE'] = [] # default 0, dedicated 1
session_dict['EPS-BEARER-STATE'] = [] # active 1, inactive 0
session_dict['EPS-BEARER-APN'] = []
session_dict['PDN-ADDRESS'] = []
session_dict['PDN-ADDRESS-IPV4'] = None
session_dict['PDN-ADDRESS-IPV6'] = None
if session_dict['ENB-TAC1'] is None:
session_dict['ENB-TAC1'] = b'\x00\x01'
if session_dict['ENB-TAC2'] is None:
session_dict['ENB-TAC2'] = b'\x00\x03'
session_dict['ENB-TAC'] = session_dict['ENB-TAC1']
session_dict['ENB-TAC-NBIOT'] = b'\x00\x02'
session_dict['ENB-ID'] = 1
session_dict['ENB-CELLID'] = 1000000
session_dict['NAS-KEY-EEA1'] = return_key(session_dict['KASME'],1,'NAS-ENC')
session_dict['NAS-KEY-EEA2'] = return_key(session_dict['KASME'],2,'NAS-ENC')
session_dict['NAS-KEY-EEA3'] = return_key(session_dict['KASME'],3,'NAS-ENC')
session_dict['NAS-KEY-EIA1'] = return_key(session_dict['KASME'],1,'NAS-INT')
session_dict['NAS-KEY-EIA2'] = return_key(session_dict['KASME'],2,'NAS-INT')
session_dict['NAS-KEY-EIA3'] = return_key(session_dict['KASME'],3,'NAS-INT')
session_dict['UP-COUNT'] = -1
session_dict['DOWN-COUNT'] = -1
session_dict['ENC-ALG'] = 0
session_dict['INT-ALG'] = 0
session_dict['ENC-KEY'] = None
session_dict['INT-KEY'] = None
session_dict['NAS-SMS-MT'] = None
if session_dict['LOCAL_KEYS'] == True:
if session_dict['IMSI'] == None:
session_dict['IMSI'] = IMSI
else:
if session_dict['IMSI'] == None:
try:
session_dict['IMSI'] = return_imsi(session_dict['SERIAL-INTERFACE'])
if session_dict['IMSI'] == None:
session_dict['LOCAL_KEYS'] = True
session_dict['IMSI'] = IMSI
except:
if session_dict['LOCAL_MILENAGE'] == False:
session_dict['LOCAL_KEYS'] = True
session_dict['IMSI'] = IMSI
if session_dict['IMEISV'] == None:
session_dict['IMEISV'] = IMEISV
session_dict['ENCODED-IMSI'] = eNAS.encode_imsi(session_dict['IMSI'])
session_dict['ENCODED-IMEI'] = eNAS.encode_imei(IMEISV)
if session_dict['ENCODED-GUTI'] == None:
session_dict['ENCODED-GUTI'] = eNAS.encode_guti(session_dict['PLMN'],32769,1,12345678)
session_dict['S-TMSI'] = None
session_dict['TMSI'] = None
session_dict['LAI'] = None
session_dict['CPSR-TYPE'] = 0
session_dict['S1-TYPE'] = "4G"
session_dict['MOBILE-IDENTITY'] = session_dict['ENCODED-IMSI']
session_dict['MOBILE-IDENTITY-TYPE'] = "IMSI"
session_dict['SESSION-SESSION-TYPE'] = "NONE"
session_dict['SESSION-TYPE'] = "4G"
session_dict['SESSION-TYPE-TUN'] = 1
session_dict['PDP-TYPE'] = 1
session_dict['ATTACH-PDN'] = None
session_dict['ATTACH-TYPE'] = 1
session_dict['TAU-TYPE'] = 0
session_dict['SMS-UPDATE-TYPE'] = False
session_dict['NBIOT-SESSION-TYPE'] = "NONE"
session_dict['CPSR-TYPE'] = 0
session_dict['UECONTEXTRELEASE-CSFB'] = False
session_dict['PROCESS-PAGING'] = True
session_dict['PCSCF-RESTORATION'] = False
session_dict['NAS-DELIVERY-INDICATION'] = 0
session_dict['NAS-KEY-SET-IDENTIFIER'] = 0
session_dict['LOG'] = []
session_dict['NON-IP-PACKET'] = 1
session_dict['NON-IP-PACKETS'] = [NON_IP_PACKET_1, NON_IP_PACKET_2, NON_IP_PACKET_3, NON_IP_PACKET_4]
session_dict['PDN-CONNECTIVITY-REQUEST-TYPE'] = 1
return session_dict
def ip2int(addr):
return struct.unpack("!I", socket.inet_aton(addr))[0]
def bytes2hex(byteArray):
return ''.join(hex(i).replace("0x", "0x0")[-2:] for i in byteArray)
def hex2bytes(hex_str):
return bytearray.fromhex(hex_str)
def bcd(chars):
bcd_string = ""
for i in range(len(chars) // 2):
bcd_string += chars[1+2*i] + chars[2*i]
bcd_bytes = bytes(bytearray.fromhex(bcd_string))
return bcd_bytes
def return_plmn_s1ap(mccmnc):
mccmnc = str(mccmnc)
print("Returning PLMN from: " + str(mccmnc))
if len(mccmnc)==5:
return bcd(mccmnc[0] + mccmnc[1] + mccmnc[2] + 'f' + mccmnc[3] + mccmnc[4])
elif len(mccmnc)==6:
return bcd(mccmnc[0] + mccmnc[1] + mccmnc[2] + mccmnc[3] + mccmnc[4] + mccmnc[5])
else:
return b''
def return_plmn(mccmnc):
mccmnc = str(mccmnc)
print("Returning PLMN from: " + str(mccmnc))
if len(mccmnc)==5:
return bcd(mccmnc[0] + mccmnc[1] + mccmnc[2] + 'f' + mccmnc[3] + mccmnc[4])
elif len(mccmnc)==6:
return bcd(mccmnc[0] + mccmnc[1] + mccmnc[2] + mccmnc[5] + mccmnc[3] + mccmnc[4])
else:
return b''
def return_apn(apn):
apn_bytes = bytes()
apn_l = apn.split(".")
for word in apn_l:
apn_bytes += struct.pack("!B", len(word)) + word.encode()
return apn_bytes
def set_stream(client, stream):
sctp_default_send_param = bytearray(client.getsockopt(132,10,32))
sctp_default_send_param[0]= stream
client.setsockopt(132, 10, sctp_default_send_param)
return client
def return_key(kasme, algo, type): # 33.401 Annex A.7
if type == 'NAS-ENC':
type = '01'
elif type == 'NAS-INT':
type = '02'
algo = '0'+str(algo)
key = kasme
message = unhexlify('15'+type+'0001'+algo+'0001')
h = HMAC.new(key, msg=message, digestmod=SHA256)
return h.digest()[-16:]
def return_kasme(plmn, autn, ck, ik):
key = unhexlify(ck + ik)
sqn_xor_ak = autn[0:12]
message = unhexlify('10') + return_plmn(plmn) + unhexlify('0003' + sqn_xor_ak + '0006')
h = HMAC.new(key, msg=message, digestmod=SHA256)
return h.digest()[-32:]
def set_key(dic):
if dic['INT-ALG'] == 0:
dic['INT-KEY'] = None
elif dic['INT-ALG'] == 1:
dic['INT-KEY'] = dic['NAS-KEY-EIA1']
elif dic['INT-ALG'] == 2:
dic['INT-KEY'] = dic['NAS-KEY-EIA2']
elif dic['INT-ALG'] == 3:
dic['INT-KEY'] = dic['NAS-KEY-EIA3']
if dic['ENC-ALG'] == 0:
dic['ENC-KEY'] = None
elif dic['ENC-ALG'] == 1:
dic['ENC-KEY'] = dic['NAS-KEY-EEA1']
elif dic['ENC-ALG'] == 2:
dic['ENC-KEY'] = dic['NAS-KEY-EEA2']
elif dic['ENC-ALG'] == 3:
dic['ENC-KEY'] = dic['NAS-KEY-EEA3']
return dic
def nas_hash(dic):
if dic['DIR'] == 0:
return nas_hash_func(dic['NAS-ENC'], dic['UP-COUNT'], dic['DIR'], dic['INT-KEY'], dic['INT-ALG'])
else:
return nas_hash_func(dic['NAS-ENC'], dic['DOWN-COUNT'], dic['DIR'], dic['INT-KEY'], dic['INT-ALG'])
def nas_hash_func(nas, count, dir, key, algo):
sqn=bytes([count%256]) #last byte
if algo == 1:
return EIA1(key, count, 0, dir, sqn+nas)
elif algo ==2:
return EIA2(key, count, 0, dir, sqn+nas)
elif algo ==3:
return EIA3(key, count, 0, dir, sqn+nas)
else:
return b'\x00\x00\x00\x00'
def nas_hash_service_request(dic):
if dic['DIR'] == 0:
return nas_hash_service_request_func(dic['NAS-ENC'], dic['UP-COUNT'], dic['DIR'], dic['INT-KEY'], dic['INT-ALG'])
else:
return nas_hash_service_request_func(dic['NAS-ENC'], dic['DOWN-COUNT'], dic['DIR'], dic['INT-KEY'], dic['INT-ALG'])
def nas_hash_service_request_func(nas, count, dir, key, algo):
if algo == 1:
return EIA1(key, count, 0, dir, nas)
elif algo ==2:
return EIA2(key, count, 0, dir, nas)
elif algo ==3:
return EIA3(key, count, 0, dir, nas)
else:
return b'\x00\x00\x00\x00'
def nas_encrypt(dic):
if dic['DIR'] == 0:
return nas_encrypt_func(dic['NAS-ENC'], dic['UP-COUNT'], dic['DIR'], dic['ENC-KEY'], dic['ENC-ALG'])
else:
return nas_encrypt_func(dic['NAS-ENC'], dic['DOWN-COUNT'], dic['DIR'], dic['ENC-KEY'], dic['ENC-ALG'])
def nas_encrypt_func(nas, count, dir, key, algo):
if algo == 1:
return EEA1(key, count, 0, dir, nas)
elif algo ==2:
return EEA2(key, count, 0, dir, nas)
elif algo ==3:
return EEA3(key, count, 0, dir, nas)
else:
return nas
def get_default_gateway_linux():
"""Read the default gateway directly from /proc."""
with open("/proc/net/route") as fh:
for line in fh:
fields = line.strip().split()
if fields[1] != '00000000' or not int(fields[3], 16) & 2:
continue
return socket.inet_ntoa(struct.pack("<L", int(fields[2], 16))), fields[0]
#abstraction functions
def milenage_res_ck_ik(ki, op, opc, rand):
print(ki, op, opc ,rand)
rand = unhexlify(rand)
if op == None:
op = 16*b'\x00' #dummy since we will set opc directly
m = Milenage(op)
m.set_opc(opc)
else:
m = Milenage(op)
res, ck, ik, ak = m.f2345(ki, rand)
return hexlify(res), hexlify(ck), hexlify(ik)
def return_imsi(serial_interface_or_reader_index):
try:
return read_imsi_2(serial_interface_or_reader_index)
except:
try:
return read_imsi(serial_interface_or_reader_index)
except:
try:
return get_imsi(serial_interface_or_reader_index)
except:
try:
return https_imsi(serial_interface_or_reader_index)
except:
return None
def return_res_ck_ik(serial_interface_or_reader_index, rand, autn):
try:
return read_res_ck_ik_2(serial_interface_or_reader_index, rand, autn)
except:
try:
return read_res_ck_ik(serial_interface_or_reader_index, rand, autn)
except:
try:
return get_res_ck_ik(serial_interface_or_reader_index, rand, autn)
except:
try:
return https_res_ck_ik(serial_interface_or_reader_index, rand, autn)
except:
return None, None, None
def get_imsi(serial_interface):
imsi = None
ser = serial.Serial(serial_interface,38400, timeout=0.5,xonxoff=True, rtscts=True, dsrdtr=True, exclusive =True)
CLI = []
CLI.append('AT+CIMI\r\n')
a = time.time()
for i in range(len(CLI)):
ser.write(CLI[i].encode())
buffer = ''
while "OK\r\n" not in buffer and "ERROR\r\n" not in buffer:
buffer += ser.read().decode("utf-8")
if time.time()-a > 0.5:
ser.write(CLI[i].encode())
a = time.time() +1
if i==0:
for m in buffer.split('\r\n'):
if len(m) == 15:
imsi = m
ser.close()
return imsi
def get_res_ck_ik(serial_interface, rand, autn):
res = None
ck = None
ik = None
ser = serial.Serial(serial_interface,38400, timeout=0.5,xonxoff=True, rtscts=True, dsrdtr=True, exclusive =True)
CLI = []
#CLI.append('AT+CRSM=178,12032,1,4,0\r\n')
CLI.append('AT+CSIM=14,"00A40000023F00"\r\n')
CLI.append('AT+CSIM=14,"00A40000022F00"\r\n')
CLI.append('AT+CSIM=42,"00A4040010A0000000871002FFFFFFFF8903050001"\r\n')
CLI.append('AT+CSIM=78,\"008800812210' + rand.upper() + '10' + autn.upper() + '\"\r\n')
a = time.time()
for i in CLI:
ser.write(i.encode())
buffer = ''
while "OK" not in buffer and "ERROR" not in buffer:
buffer += ser.read().decode("utf-8")
if time.time()-a > 0.5:
ser.write(i.encode())
a = time.time() + 1
for i in buffer.split('"'):
if len(i)==4:
if i[0:2] == '61':
len_result = i[-2:]
LAST_CLI = 'AT+CSIM=10,"00C00000' + len_result + '\"\r\n'
ser.write(LAST_CLI.encode())
buffer = ''
while "OK\r\n" not in buffer and "ERROR\r\n" not in buffer:
buffer += ser.read().decode("utf-8")
for result in buffer.split('"'):
if len(result) > 10:
res = result[4:20]
ck = result[22:54]
ik = result[56:88]
ser.close()
return res, ck, ik
#reader functions
def bcd_str(chars):
bcd_string = ""
for i in range(len(chars) // 2):
bcd_string += chars[1+2*i] + chars[2*i]
return bcd_string
def read_imsi(reader_index):
imsi = None
r = readers()
connection = r[int(reader_index)].createConnection()
connection.connect()
data, sw1, sw2 = connection.transmit(toBytes('00A40000023F00'))
data, sw1, sw2 = connection.transmit(toBytes('00A40000027F20'))
data, sw1, sw2 = connection.transmit(toBytes('00A40000026F07'))
data, sw1, sw2 = connection.transmit(toBytes('00B0000009'))
result = toHexString(data).replace(" ","")
imsi = bcd_str(result)[-15:]
return imsi
def read_res_ck_ik(reader_index, rand, autn):
res = None
ck = None
ik = None
r = readers()
connection = r[int(reader_index)].createConnection()
connection.connect()
data, sw1, sw2 = connection.transmit(toBytes('00A40000023F00'))
data, sw1, sw2 = connection.transmit(toBytes('00A40000022F00'))
data, sw1, sw2 = connection.transmit(toBytes('00A4040010A0000000871002FFFFFFFF8903050001'))
data, sw1, sw2 = connection.transmit(toBytes('008800812210' + rand.upper() + '10' + autn.upper()))
if sw1 == 97:
data, sw1, sw2 = connection.transmit(toBytes('00C00000') + [sw2])
result = toHexString(data).replace(" ", "")
res = result[4:20]
ck = result[22:54]
ik = result[56:88]
return res, ck, ik
#reader functions - more generic using card module
def read_imsi_2(reader_index): #prepared for AUTS
a = USIM(int(reader_index))
return a.get_imsi()
def read_res_ck_ik_2(reader_index,rand,autn):
a = USIM(int(reader_index))
x = a.authenticate(RAND=toBytes(rand), AUTN=toBytes(autn))
if len(x) == 1: #AUTS goes in RES position
return toHexString(x[0]).replace(" ", ""), None, None
elif len(x) > 2:
return toHexString(x[0]).replace(" ", ""),toHexString(x[1]).replace(" ", ""),toHexString(x[2]).replace(" ", "")
else:
return None, None, None
#https functions
def https_imsi(server):
r = requests.get('https://' + server + '/?type=imsi', verify=False)
return r.json()['imsi']
def https_res_ck_ik(server, rand, autn):
r = requests.get('https://' + server + '/?type=rand-autn&rand=' + rand + '&autn=' + autn, verify=False)
return r.json()['res'], r.json()['ck'], r.json()['ik']
######################################################################################################################################
######################################################################################################################################
#------------------------------------------------------------------------------------------------------------------------------------#
######################################################################################################################################
# NON UE RELATED PROCEDURES: #
######################################################################################################################################
def S1SetupRequest(dic):
IEs = []
IEs.append({'id': 59, 'value': ('Global-ENB-ID', {'pLMNidentity': dic['ENB-PLMN'], 'eNB-ID' : ('macroENB-ID', (dic['ENB-ID'], 20))}), 'criticality': 'reject'})
IEs.append({'id': 60, 'value': ('ENBname', dic['ENB-NAME']), 'criticality': 'ignore'})
if dic['S1-TYPE'] == "4G" :
IEs.append({'id': 64, 'value': ('SupportedTAs', [{'tAC': dic['ENB-TAC1'], 'broadcastPLMNs': [dic['ENB-PLMN']]}, {'tAC': dic['ENB-TAC2'], 'broadcastPLMNs': [dic['ENB-PLMN']]}]), 'criticality': 'reject'})
elif dic['S1-TYPE'] == "NBIOT":
IEs.append({'id': 64, 'value': ('SupportedTAs', [{'tAC': dic['ENB-TAC-NBIOT'], 'broadcastPLMNs': [dic['ENB-PLMN']], 'iE-Extensions': [{'id':232, 'criticality': 'reject', 'extensionValue':('RAT-Type','nbiot')}]}]), 'criticality': 'reject'})
elif dic['S1-TYPE'] == "BOTH":
IEs.append({'id': 64, 'value': ('SupportedTAs', [{'tAC': dic['ENB-TAC'], 'broadcastPLMNs': [dic['ENB-PLMN']]}, {'tAC': dic['ENB-TAC-NBIOT'], 'broadcastPLMNs': [dic['ENB-PLMN']], 'iE-Extensions': [{'id':232, 'criticality': 'reject', 'extensionValue':('RAT-Type','nbiot')}]}]), 'criticality': 'reject'})
IEs.append({'id': 137, 'value': ('PagingDRX', 'v128'), 'criticality': 'ignore'})
if dic['S1-TYPE'] == "NBIOT" or dic['S1-TYPE'] == "BOTH":
IEs.append({'id': 234, 'value': ('NB-IoT-DefaultPagingDRX', 'v256'), 'criticality': 'ignore'})
val = ('initiatingMessage', {'procedureCode': 17, 'value': ('S1SetupRequest', {'protocolIEs': IEs}), 'criticality': 'ignore'})
dic = eMENU.print_log(dic, "S1AP: sending S1SetupRequest")
return val
def S1SetupResponseProcessing(IEs, dic):
mme_name = ''
servedPLMNs = b''
servedGroupIDs = b''
servedMMECs = b''
RelativeMMECapacity = 0
for i in IEs:
if i['id'] == 61:
mme_name = i['value'][1]
elif i['id'] == 105:
servedPLMNs = i['value'][1][0]['servedPLMNs'][0]
servedGroupIDs = i['value'][1][0]['servedGroupIDs'][0]
servedMMECs = i['value'][1][0]['servedMMECs'][0]
elif i['id'] == 87:
RelativeMMECapacity = i['value'][1]
dic['MME-NAME'] = mme_name
dic['MME-PLMN'] = servedPLMNs
dic['MME-GROUP-ID'] = servedGroupIDs
dic['MME-CODE'] = servedMMECs
dic['MME-RELATIVE-CAPACITY'] = RelativeMMECapacity
dic['STATE'] = 1
return dic
# improve when MME supports more than on network
def MMEConfigurationUpdateAcknowledge(IEs, dic):
for i in IEs:
if i['id'] == 61:
mme_name = i['value'][1]
dic['MME-NAME'] = mme_name
elif i['id'] == 105:
servedPLMNs = i['value'][1][0]['servedPLMNs']
servedGroupIDs = i['value'][1][0]['servedGroupIDs']
servedMMECs = i['value'][1][0]['servedMMECs']
dic['MME-PLMN'] = servedPLMNs
dic['MME-GROUP-ID'] = servedGroupIDs
dic['MME-CODE'] = servedMMECs
elif i['id'] == 87:
RelativeMMECapacity = i['value'][1]
dic['MME-RELATIVE-CAPACITY'] = RelativeMMECapacity
answer = ('successfulOutcome', {'procedureCode': 30, 'value': ('MMEConfigurationUpdateAcknowledge', {'protocolIEs': []}), 'criticality': 'ignore'})
dic = eMENU.print_log(dic, "S1AP: sending MMEConfigurationUpdateAcknowledge")
return answer, dic
def Reset(dic):
#assumes only one session so no need to check MME-UE-S1AP-ID and ENB-UE-S1AP-ID
IEs = []
IEs.append({'id': 2, 'value': ('Cause', ('misc', 'om-intervention')), 'criticality': 'ignore'})
IEs.append({'id': 92, 'value': ('ResetType', ('s1-Interface', 'reset-all')), 'criticality': 'ignore'})
val = ('initiatingMessage', {'procedureCode': 14, 'value': ('Reset', {'protocolIEs': IEs}), 'criticality': 'ignore'})
dic = eMENU.print_log(dic, "S1AP: sending Reset")
return val
######################################################################################################################################
######################################################################################################################################
#------------------------------------------------------------------------------------------------------------------------------------#
######################################################################################################################################
# UE RELATED PROCEDURES: #
######################################################################################################################################
###############
# NAS Msg #
###############
def nas_pco(pdp_type,pcscf_restoration):
if pdp_type == 1:
len_pco = struct.pack("!H", 32)
if pcscf_restoration == False:
return b'\x80\x80\x21\x1c\x01\x00\x00\x1c\x81\x06\x00\x00\x00\x00\x82\x06\x00\x00\x00\x00\x83\x06\x00\x00\x00\x00\x84\x06\x00\x00\x00\x00\x00\x0c\x00\x00\x0e\x00'
else:
return b'\x80\x80\x21\x1c\x01\x00\x00\x1c\x81\x06\x00\x00\x00\x00\x82\x06\x00\x00\x00\x00\x83\x06\x00\x00\x00\x00\x84\x06\x00\x00\x00\x00\x00\x0c\x00\x00\x12\x00\x00\x0e\x00'
elif pdp_type == 2:
len_pco = struct.pack("!H", 4)
if pcscf_restoration == False:
return b'\x80\x00\x03\x00\x00\x01\x00\x00\x0e\x00'
else:
return b'\x80\x00\x03\x00\x00\x01\x00\x00\x12\x00\x00\x0e\x00'
elif pdp_type == 3:
len_pco = struct.pack("!H", 33)
if pcscf_restoration == False:
return b'\x80\x80\x21\x1c\x01\x00\x00\x1c\x81\x06\x00\x00\x00\x00\x82\x06\x00\x00\x00\x00\x83\x06\x00\x00\x00\x00\x84\x06\x00\x00\x00\x00\x00\x03\x00\x00\x0c\x00\x00\x01\x00\x00\x0e\x00'
else:
return b'\x80\x80\x21\x1c\x01\x00\x00\x1c\x81\x06\x00\x00\x00\x00\x82\x06\x00\x00\x00\x00\x83\x06\x00\x00\x00\x00\x84\x06\x00\x00\x00\x00\x00\x03\x00\x00\x0c\x00\x00\x01\x00\x00\x12\x00\x00\x0e\x00'
#-------------------------------------------------------------------#
### ESM ### :
def nas_pdn_connectivity(eps_bearer_identity, pti, pdp_type, apn, pco, esm_information_transfer_flag, request_type=1):
esm_list = []
esm_list.append((2,eps_bearer_identity)) # protocol discriminator / eps bearer identity
esm_list.append((0,'V',bytes([pti]))) # procedure trnasaction identity
esm_list.append((0,'V',bytes([208]))) # message type: pdn connectivity request
esm_list.append((0,'V',bytes([(pdp_type<<4) + request_type])))
if esm_information_transfer_flag != None:
esm_list.append((0xD,'TV',esm_information_transfer_flag))
if apn != None:
esm_list.append((0x28,'TLV',apn))
if pco != None:
esm_list.append((0x27,'TLV',pco))
return eNAS.nas_encode(esm_list)
def nas_pdn_disconnect(eps_bearer_identity, pti, linked_eps_bearer_id, pco):
esm_list = []
esm_list.append((2,eps_bearer_identity)) # protocol discriminator / eps bearer identity
esm_list.append((0,'V',bytes([pti]))) # procedure trnasaction identity
esm_list.append((0,'V',bytes([210]))) # message type: pdn disconnectrequest
esm_list.append((0,'V',bytes([linked_eps_bearer_id]))) # pdn type / request type (ipv4, initial request)
if pco != None:
esm_list.append((0x27,'TLV',pco))
return eNAS.nas_encode(esm_list)
def nas_activate_default_eps_bearer_context_accept(eps_bearer_identity, pco):
esm_list = []
pti = 0
esm_list.append((2,eps_bearer_identity)) # protocol discriminator / eps bearer identity
esm_list.append((0,'V',bytes([pti]))) # procedure trnasaction identity
esm_list.append((0,'V',bytes([194]))) # message type: activate_default_eps_bearer_context_accept
if pco != None:
esm_list.append((0x27,'TLV',pco))
return eNAS.nas_encode(esm_list)
def nas_activate_dedicated_eps_bearer_context_accept(eps_bearer_identity, pco):
esm_list = []
pti = 0
esm_list.append((2,eps_bearer_identity)) # protocol discriminator / eps bearer identity
esm_list.append((0,'V',bytes([pti]))) # procedure trnasaction identity
esm_list.append((0,'V',bytes([198]))) # message type: activate_dedicated_eps_bearer_context_accept
if pco != None:
esm_list.append((0x27,'TLV',pco))
return eNAS.nas_encode(esm_list)
def nas_modify_eps_bearer_context_accept(eps_bearer_identity, pco):
esm_list = []
pti = 0
esm_list.append((2,eps_bearer_identity)) # protocol discriminator / eps bearer identity
esm_list.append((0,'V',bytes([pti]))) # procedure trnasaction identity
esm_list.append((0,'V',bytes([202]))) # message type: activate_dedicated_eps_bearer_context_accept
if pco != None:
esm_list.append((0x27,'TLV',pco))
return eNAS.nas_encode(esm_list)
def nas_esm_information_response(eps_bearer_identity, pti, apn, pco):
esm_list = []
esm_list.append((2,eps_bearer_identity)) # protocol discriminator / eps bearer identity
esm_list.append((0,'V',bytes([pti]))) # procedure trnasaction identity
esm_list.append((0,'V',bytes([218]))) # message type: eesm information response
if apn != None:
esm_list.append((0x28,'TLV',apn))
if pco != None:
esm_list.append((0x27,'TLV',pco))
return eNAS.nas_encode(esm_list)
def nas_deactivate_eps_bearer_context_accept(eps_bearer_identity, pti, pco):
esm_list = []
esm_list.append((2,eps_bearer_identity)) # protocol discriminator / eps bearer identity
esm_list.append((0,'V',bytes([pti]))) # procedure trnasaction identity
esm_list.append((0,'V',bytes([206]))) # message type: deactivate eps bearer context accept
if pco != None:
esm_list.append((0x27,'TLV',pco))
return eNAS.nas_encode(esm_list)
def nas_esm_data_transport(eps_bearer_identity, pti, user_data_container):
esm_list = []
esm_list.append((2,eps_bearer_identity)) # protocol discriminator / eps bearer identity
esm_list.append((0,'V',bytes([pti]))) # procedure trnasaction identity
esm_list.append((0,'V',bytes([235]))) # message type: esm data transport
esm_list.append((0,'LV-E',user_data_container))
return eNAS.nas_encode(esm_list)
#-------------------------------------------------------------#
### EMM ### :
def nas_attach_request(type, esm_information_transfer_flag, eps_identity, pdp_type, attach_type, tmsi, lai, sms_update, pcscf_restoration, pdn_request_type, ksi=0):
emm_list = []
emm_list.append((7,0)) # protocol discriminator /
emm_list.append((0,'V',bytes([65]))) # message type: attach request
emm_list.append((0,'V',bytes([(ksi<<4) + attach_type]))) # eps attach type/ nas key set identifier (EPS Attach /Keyset 0)
emm_list.append((0,'LV',eps_identity)) # eps mobile identity (imsi/odd number:9) + imsi. all in bcd)
if type[0] == "4G":
emm_list.append((0,'LV',unhexlify('f0f0c04009')))
elif type[0] == "NBIOT":
emm_list.append((0,'LV',unhexlify('f0f0000008a4')))
elif type[0] == "5G":
emm_list.append((0,'LV',unhexlify('f0f0c0c0000010')))
pco = nas_pco(pdp_type,pcscf_restoration)
if attach_type == 6: #EPS Emergency Attach
emm_list.append((0,'LV-E',nas_pdn_connectivity(0,1,pdp_type,None,pco,esm_information_transfer_flag,4)))
else:
emm_list.append((0,'LV-E',nas_pdn_connectivity(0,1,pdp_type,None,pco,esm_information_transfer_flag, pdn_request_type)))
if type[0] == "4G":
if attach_type == 2 and lai != None:
emm_list.append((0x13, 'TV', lai))
if attach_type == 2 and tmsi == None:
emm_list.append((0x9, 'TV', 0))
if sms_update == True:
emm_list.append((0xF, 'TV', 1))
emm_list.append((0xC, 'TV', 1))
if attach_type == 2 and tmsi != None:
emm_list.append((0x10, 'TLV', tmsi[-3:-2] + bytes([(tmsi[-2]//64)*64])))
if type[1] == "PSM" or type[1] == "BOTH":
emm_list.append((0x6A, 'TLV', b'\x0f')) # 15*2=30 sec.
emm_list.append((0x5E, 'TLV', b'\x41'))
if type[1] == "EDRX" or type[1] == "BOTH":
emm_list.append((0x6E, 'TLV', b'\x75'))
elif type[0] == "NBIOT":
if attach_type == 2 and lai != None:
emm_list.append((0x13, 'TV', lai))
if attach_type == 2 and tmsi == None:
emm_list.append((0x9, 'TV', 0))
if sms_update == True:
emm_list.append((0xF, 'TV', 5))
else:
emm_list.append((0xF, 'TV', 4))
emm_list.append((0xC, 'TV', 1))
if attach_type == 2 and tmsi != None:
emm_list.append((0x10, 'TLV', tmsi[-3:-2] + bytes([(tmsi[-2]//64)*64])))
if type[1] == "PSM" or type[1] == "BOTH":
emm_list.append((0x6A, 'TLV', b'\x0f')) # 15*2=30 sec.
emm_list.append((0x5E, 'TLV', b'\x41'))
if type[1] == "EDRX" or type[1] == "BOTH":
emm_list.append((0x6E, 'TLV', b'\x75'))
elif type[0] == "5G":
if attach_type == 2 and lai != None:
emm_list.append((0x13, 'TV', lai))
if attach_type == 2 and tmsi == None:
emm_list.append((0x9, 'TV', 0))
if sms_update == True:
emm_list.append((0xF, 'TV', 1))
if attach_type == 2 and tmsi != None:
emm_list.append((0x10, 'TLV', tmsi[-3:-2] + bytes([(tmsi[-2]//64)*64])))
emm_list.append((0x6F, 'TLV', b'\xf0\x00\xf0\x00'))
return eNAS.nas_encode(emm_list)
def nas_tracking_area_update_request(ksi, eps_update_type, eps_identity, type, tmsi, lai, sms_update):
emm_list = []
emm_list.append((7,0)) # protocol discriminator /
emm_list.append((0,'V',bytes([72]))) # message type: tracking area update request
emm_list.append((0,'V',bytes([(ksi<<4) + eps_update_type]))) # ksi=6, update type: TA
emm_list.append((0,'LV',eps_identity)) # eps mobile identity (imsi/odd number:9) + imsi. all in bcd)
if type[0] == "4G":
emm_list.append((0x58,'TLV',unhexlify('f0f0c04009')))
if eps_update_type > 0 and lai != None:
emm_list.append((0x13, 'TV', lai))
if eps_update_type > 0 and tmsi == None:
emm_list.append((0x9, 'TV', 0))
if sms_update == True:
emm_list.append((0xF, 'TV', 1))
emm_list.append((0xC, 'TV', 1))
if eps_update_type > 0 and tmsi != None:
emm_list.append((0x10, 'TLV', tmsi[-3:-2] + bytes([(tmsi[-2]//64)*64])))
if type[1] == "PSM" or type[1] == "BOTH":
emm_list.append((0x6A, 'TLV', b'\x05'))
emm_list.append((0x5E, 'TLV', b'\x41'))
if type[1] == "EDRX" or type[1] == "BOTH":
emm_list.append((0x6E, 'TLV', b'\x75'))
elif type[0] == "NBIOT":
emm_list.append((0x58,'TLV',unhexlify('f0f0000008a4')))
elif type[0] == "5G":
emm_list.append((0x58,'TLV',unhexlify('f0f0c0c0000010')))
if type[0] == "NBIOT":
if eps_update_type > 0 and lai != None:
emm_list.append((0x13, 'TV', lai))
if eps_update_type > 0 and tmsi == None:
emm_list.append((0x9, 'TV', 0))
if sms_update == True:
emm_list.append((0xF, 'TV', 5))
else:
emm_list.append((0xF, 'TV', 4))
emm_list.append((0xC, 'TV', 1))
if eps_update_type > 0 and tmsi != None:
emm_list.append((0x10, 'TLV', tmsi[-3:-2] + bytes([(tmsi[-2]//64)*64])))
if type[1] == "PSM" or type[1] == "BOTH":
emm_list.append((0x6A, 'TLV', b'\x05'))
emm_list.append((0x5E, 'TLV', b'\x41'))
if type[1] == "EDRX" or type[1] == "BOTH":
emm_list.append((0x6E, 'TLV', b'\x75'))
elif type[0] == "5G":
if eps_update_type > 0 and lai != None:
emm_list.append((0x13, 'TV', lai))
if eps_update_type > 0 and tmsi == None:
emm_list.append((0x9, 'TV', 0))
if sms_update == True:
emm_list.append((0xF, 'TV', 1))
if eps_update_type > 0 and tmsi != None:
emm_list.append((0x10, 'TLV', tmsi[-3:-2] + bytes([(tmsi[-2]//64)*64])))
emm_list.append((0x6F, 'TLV', b'\xf0\x00\xf0\x00'))
return eNAS.nas_encode(emm_list)
def nas_extended_service_request(ksi, mobile_identity):
emm_list = []
emm_list.append((7,0)) # protocol discriminator /
emm_list.append((0,'V',bytes([76]))) # message type: extende service request
emm_list.append((0,'V',bytes([(ksi<<4) + 1]))) #mobile terminating cs fallback
emm_list.append((0,'LV',b'\xf4' + mobile_identity))
emm_list.append((0xB,'TV',1))
return eNAS.nas_encode(emm_list)
def nas_detach_request(ksi, detach_type, eps_identity):
emm_list = []
emm_list.append((7,0)) # protocol discriminator /
emm_list.append((0,'V',bytes([69]))) # message type: detach request
emm_list.append((0,'V',bytes([(ksi<<4) + detach_type]))) # ksi=6, update type: TA
emm_list.append((0,'LV',eps_identity)) # eps mobile identity (imsi/odd number:9) + imsi. all in bcd)
return eNAS.nas_encode(emm_list)
def nas_authentication_response(xres):
emm_list = []
emm_list.append((7,0)) # protocol discriminator /
emm_list.append((0,'V',bytes([83]))) # message type: authentication response
emm_list.append((0,'LV',xres))
return eNAS.nas_encode(emm_list)
def nas_identity_response(imsi_or_imeisv):
emm_list = []
emm_list.append((7,0)) # protocol discriminator /
emm_list.append((0,'V',bytes([86]))) # message type: identity response
emm_list.append((0,'LV',bcd(imsi_or_imeisv ))) # eps mobile identity (imsi/odd number:9) + imsi. all in bcd)
return eNAS.nas_encode(emm_list)
def nas_security_mode_complete(imeisv):
emm_list = []
emm_list.append((7,0)) # protocol discriminator /
emm_list.append((0,'V',bytes([94]))) # message type: security mode complete
if imeisv != None:
emm_list.append((0x23,'TLV',bcd('3' + imeisv + 'f')))
return eNAS.nas_encode(emm_list)
def nas_attach_complete(eps_bearer_identity):
emm_list = []
emm_list.append((7,0)) # protocol discriminator /