def datagram_received(self, data, addr):
try:
reply = Packet(packet=data, dict=self.client.dict)
if reply and reply.id in self.pending_requests:
req = self.pending_requests[reply.id]
packet = req['packet']
reply.dict = packet.dict
reply.secret = packet.secret
if packet.VerifyReply(reply, data):
req['future'].set_result(reply)
# Remove request for map
del self.pending_requests[reply.id]
else:
self.logger.warn(
'[%s:%d] Ignore invalid reply for id %d. %s',
self.server, self.port, reply.id)
else:
self.logger.warn('[%s:%d] Ignore invalid reply: %d',
self.server, self.port, data)
except Exception as exc:
self.logger.error('[%s:%d] Error on decode packet: %s',
self.server, self.port, exc)
def datagram_received(self, data, addr):
try:
reply = Packet(packet=data, dict=self.client.dict)
self.logger.info(reply)
if reply and reply.id in self.pending_requests:
self.logger.info('Request found')
req = self.pending_requests[reply.id]
packet = req['packet']
reply.dict = packet.dict
reply.secret = packet.secret
if packet.VerifyReply(reply, data):
req['future'].set_result(reply)
# Remove request for map
del self.pending_requests[reply.id]
else:
self.logger.warn(
'[{}:{}] Ignore invalid reply for id {}'.format(
self.server, self.port, reply.id))
else:
self.logger.info('Request was not found')
try:
self.logger.warn('[{}:{}] Ignore invalid reply: {}'.format(
self.server, self.port, data.decode('utf-8')))
except:
self.logger.warn('[{}:{}] Ignore invalid reply: {}'.format(
self.server, self.port, data))
except Exception as exc:
self.logger.error('[{}:{}] Error on decode packet: {}'.format(
self.server, self.port, exc))
def parse_packet(filename):
with PcapReader(filename) as file_capture:
global start_parse, end_parse, count, totaltime
for packet in file_capture:
try:
if (
len(packet) > 400 and packet.dport == 1813
): # We only need pcakets whose length is greater than 400 bytes
# Capturing the RAW data from packet (the index value for raw data is 3)
start_parse = time()
radius_packet = str(packet[Radius])
# Pyrad has a dictionary with the RADIUS attributes defined, It'll help in decoding the RAW Packet
pkt = Packet(packet=radius_packet,
dict=Dictionary("dictionary"))
attr1 = pkt._DecodeKey(8)
value1 = pkt.__getitem__(attr1)
attr2 = pkt._DecodeKey(31)
value2 = pkt.__getitem__(attr2)
end_parse = time()
print("Time Taken to parse RADIUS packet: %s seconds" %
(end_parse - start_parse))
count += 1
totaltime += (end_parse - start_parse)
print("%d Private IP: %s and MSISDN: %s" %
(count, value1, value2))
except AttributeError:
print(
"Port attribute not available in the packet, skipping the parsing on the packet... "
)
def datagram_received(self, data, addr):
socket = self.transport.get_extra_info('socket') \
if self.transport else None
try:
received_date = datetime.now()
reply = Packet(packet=data,
dict=self.client.dict,
creation_date=received_date)
if reply is not None and reply.id in self.pending_requests:
req = self.pending_requests[reply.id]
packet = req['packet']
reply.secret = packet.secret
if packet.VerifyReply(reply, data):
if reply.message_authenticator and not \
reply.verify_message_authenticator(
original_authenticator=packet.authenticator):
self.logger.warn(
'[%s:%d:%d] Received invalid reply for id %d. %s' %
(self.server, self.port, socket.getsockname()[1]
if socket else '', reply.id,
'Invalid Message-Authenticator. Ignoring it.'))
self.errors += 1
else:
req['future'].set_result(reply)
# Remove request for map
del self.pending_requests[reply.id]
else:
self.logger.warn(
'[%s:%d:%d] Received invalid reply for id %d. %s' %
(self.server, self.port, socket.getsockname()[1]
if socket else '', reply.id, 'Ignoring it.'))
self.errors += 1
else:
self.logger.warn(
'[%s:%d:%d] Received invalid reply with id %d: %s.\nIgnoring it.'
% (
self.server,
self.port,
socket.getsockname()[1] if socket else '',
(-1, reply.id)[reply is not None],
data.hex(),
))
self.errors += 1
except Exception as exc:
self.logger.error(
'[%s:%d:%d] Error on decode packet: %s.' %
(self.server, self.port,
socket.getsockname()[1] if socket else '', (exc, '\n'.join(
traceback.format_exc().splitlines()))[self.client.debug]))
def setUp(self):
self.data_session_id = 'some-id-1234'
self.data_src_ip = '2.3.4.5'
self.path = os.path.join(sys.modules["tests"].__path__[0], 'data')
self.dictionary = Dictionary(os.path.join(self.path, 'dictionary'))
self.pkt = Packet(id=0, secret=b'secret',
authenticator=b'01234567890ABCDEF',
dict=self.dictionary)
self.pkt[b'Acct-Status-Type'] = 'Start'
self.pkt[b'Acct-Session-Id'] = self.data_session_id
self.pkt[b'User-Name'] = 'SomeUser'
self.pkt.source = (self.data_src_ip, 5000)
def parse_packet(packet):
if (packet.haslayer(Radius)):
radius_packet = str(packet[Radius])
pkt = Packet(packet=radius_packet, dict=Dictionary("dictionary"))
for key, value in pkt.iteritems():
attr = pkt._DecodeKey(key)
value = pkt.__getitem__(attr)
#print attr, value
fout.write("%s %s\n" % (attr, str(value)))
else:
#packet.show()
pass
def CreatePacket(self, id, **args):
if not id:
raise Exception('Missing mandatory packet id')
return Packet(id=id, dict=self.dict, secret=self.secret, **args)
def datagram_received(self, data, addr):
self.logger.debug('[%s:%d] Received %d bytes from %s', self.ip,
self.port, len(data), addr)
receive_date = datetime.utcnow()
if addr[0] in self.hosts:
remote_host = self.hosts[addr[0]]
elif '0.0.0.0' in self.hosts:
remote_host = self.hosts['0.0.0.0']
else:
self.logger.warn('[%s:%d] Drop package from unknown source %s',
self.ip, self.port, addr)
return
try:
self.logger.debug('[%s:%d] Received from %s packet: %s', self.ip,
self.port, addr, data.hex())
req = Packet(packet=data, dict=self.server.dict)
except Exception as exc:
self.logger.error('[%s:%d] Error on decode packet: %s', self.ip,
self.port, exc)
return
try:
if req.code in (AccountingResponse, AccessAccept, AccessReject,
CoANAK, CoAACK, DisconnectNAK, DisconnectACK):
raise ServerPacketError('Invalid response packet %d' %
req.code)
elif self.server_type == ServerType.Auth:
if req.code != AccessRequest:
raise ServerPacketError(
'Received non-auth packet on auth port')
req = AuthPacket(secret=remote_host.secret,
dict=self.server.dict,
packet=data)
if self.server.enable_pkt_verify:
if req.VerifyAuthRequest():
raise PacketError('Packet verification failed')
elif self.server_type == ServerType.Coa:
if req.code != DisconnectRequest and req.code != CoARequest:
raise ServerPacketError(
'Received non-coa packet on coa port')
req = CoAPacket(secret=remote_host.secret,
dict=self.server.dict,
packet=data)
if self.server.enable_pkt_verify:
if req.VerifyCoARequest():
raise PacketError('Packet verification failed')
elif self.server_type == ServerType.Acct:
if req.code != AccountingRequest:
raise ServerPacketError(
'Received non-acct packet on acct port')
req = AcctPacket(secret=remote_host.secret,
dict=self.server.dict,
packet=data)
if self.server.enable_pkt_verify:
if req.VerifyAcctRequest():
raise PacketError('Packet verification failed')
# Call request callback
self.request_callback(self, req, addr)
except Exception as exc:
if self.server.debug:
self.logger.exception('[%s:%d] Error for packet from %s',
self.ip, self.port, addr)
else:
self.logger.error('[%s:%d] Error for packet from %s: %s',
self.ip, self.port, addr, exc)
process_date = datetime.utcnow()
self.logger.debug('[%s:%d] Request from %s processed in %d ms',
self.ip, self.port, addr,
(process_date - receive_date).microseconds / 1000)
def datagram_received(self, data, addr):
self.logger.debug('[%s:%d] Received %d bytes from %s', self.ip,
self.port, len(data), addr)
receive_date = datetime.utcnow()
remote_host = self.__get_remote_host__(addr[0])
if remote_host:
try:
if self.server.debug:
self.logger.info('[%s:%d] Received from %s packet: %s.' %
(self.ip, self.port, addr, data.hex()))
req = Packet(packet=data, dict=self.server.dict)
except Exception as exc:
self.logger.error(
'[%s:%d] Error on decode packet: %s. Ignore it.' %
(self.ip, self.port, exc))
req = None
if not req:
return
try:
if req.code in (AccountingResponse, AccessAccept, AccessReject,
CoANAK, CoAACK, DisconnectNAK, DisconnectACK):
raise ServerPacketError('Invalid response packet %d' %
req.code)
elif self.server_type == ServerType.Auth:
if req.code != AccessRequest:
raise ServerPacketError(
'Received not-authentication packet '
'on authentication port')
req = AuthPacket(secret=remote_host.secret,
dict=self.server.dict,
packet=data)
if self.server.enable_pkt_verify and \
req.message_authenticator and \
not req.verify_message_authenticator():
raise PacketError(
'Received invalid Message-Authenticator')
elif self.server_type == ServerType.Coa:
if req.code != DisconnectRequest and \
req.code != CoARequest:
raise ServerPacketError(
'Received not-coa packet on coa port')
req = CoAPacket(secret=remote_host.secret,
dict=self.server.dict,
packet=data)
if self.server.enable_pkt_verify:
if not req.VerifyCoARequest():
raise PacketError('Packet verification failed')
if req.message_authenticator and \
not req.verify_message_authenticator():
raise PacketError(
'Received invalid Message-Authenticator')
elif self.server_type == ServerType.Acct:
if req.code != AccountingRequest:
raise ServerPacketError(
'Received not-accounting packet on '
'accounting port')
req = AcctPacket(secret=remote_host.secret,
dict=self.server.dict,
packet=data)
if self.server.enable_pkt_verify:
if not req.VerifyAcctRequest():
raise PacketError('Packet verification failed')
if req.message_authenticator and not \
req.verify_message_authenticator():
raise PacketError(
'Received invalid Message-Authenticator')
# Call request callback
self.request_callback(self, req, addr)
self.requests += 1
except Exception as e:
self.logger.error(
'[%s:%d] Unexpected error for packet from %s: %s' %
(self.ip, self.port, addr,
(e, '\n'.join(traceback.format_exc().splitlines())
)[self.server.debug]))
else:
self.logger.error('[%s:%d] Drop package from unknown source %s',
self.ip, self.port, addr)
process_date = datetime.utcnow()
self.logger.debug('[%s:%d] Request from %s processed in %d ms',
self.ip, self.port, addr,
(process_date - receive_date).microseconds / 1000)