def request_handler(self, data, address):
packet = ICNPacket()
packet.byte2icn(data)
packet.print_packet()
payload = packet.payload
cmd_type = int(binascii.b2a_hex(payload[:1]), 16)
reply = ICNPacket()
reply.setHeader("92500000000000000000000000000925",
"c11e70000000000000000000000c11e7", "00")
if cmd_type == 1:
reply.setPayload(self.register(payload))
elif cmd_type == 3:
reply.setPayload(self.query_na(payload))
reply.fill_packet()
reply.print_packet()
self.send(reply, address)
def send(self, packet):
data = packet.icn2byte()
if len(data) > self.UDP_MTU:
return None
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
sock.sendto(data, (self.ncs_address, self.ncs_port))
sock.settimeout(1)
reply = None
try:
ack, remote_address = sock.recvfrom(self.UDP_MTU)
print(ack)
reply = ICNPacket()
reply.byte2icn(ack)
reply.print_packet()
except socket.timeout:
logger.error("Timeout")
finally:
sock.close()
return reply