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)