def register(self, eid, na):
icn_packet = ICNPacket()
icn_packet.setHeader("c11e70000000000000000000000c11e7",
"92500000000000000000000000000925", "00")
cmd_type = binascii.a2b_hex("01")
eid_hex = binascii.a2b_hex(eid)
na_hex = binascii.a2b_hex(na)
icn_packet.setPayload(cmd_type + eid_hex + na_hex)
icn_packet.fill_packet()
icn_packet.print_packet()
reply = self.send(icn_packet)
cmd_type = int(binascii.b2a_hex(reply.payload[:1]), 16)
ack = int(binascii.b2a_hex(reply.payload[17:18]), 16)
if cmd_type == 2 and ack == 1:
return True
else:
return False
def register(self, hrn):
icn_packet = ICNPacket()
icn_packet.setHeader("226cf119b78825f1720cf2ca485c2d85",
"00000000000000000000000000000000", "00")
cmd_type = binascii.a2b_hex("01")
hrn_hex = hrn.encode("utf-8")
print(hrn_hex)
hrn_len = len(hrn_hex)
icn_packet.setPayload(cmd_type +
binascii.a2b_hex(int2byte(hrn_len, 8)) + hrn_hex)
icn_packet.fill_packet()
icn_packet.print_packet()
reply = self.send(icn_packet)
cmd_type = binascii.b2a_hex(reply.payload[:1])
ack = binascii.b2a_hex(reply.payload[1:2])
cmd_type = int(binascii.b2a_hex(reply.payload[:1]), 16)
ack = int(binascii.b2a_hex(reply.payload[1:2]), 16)
if cmd_type == 2 and ack == 1:
eid = binascii.b2a_hex(reply.payload[2:18])
return eid.decode("utf-8")
else:
return None
def query_na(self, eid):
icn_packet = ICNPacket()
icn_packet.setHeader("c11e70000000000000000000000c11e7",
"92500000000000000000000000000925", "00")
cmd_type = binascii.a2b_hex("03")
eid_hex = binascii.a2b_hex(eid)
icn_packet.setPayload(cmd_type + eid_hex)
icn_packet.fill_packet()
reply = self.send(icn_packet)
cmd_type = int(binascii.b2a_hex(reply.payload[:1]), 16)
na = binascii.b2a_hex(reply.payload[17:21]).decode("utf-8")
if cmd_type == 4:
return na
else:
return None
def query_hrn(self, eid):
icn_packet = ICNPacket()
icn_packet.setHeader("226cf119b78825f1720cf2ca485c2d85",
"00000000000000000000000000000000", "00")
cmd_type = binascii.a2b_hex("05")
hrn_hex = binascii.a2b_hex(eid)
icn_packet.setPayload(cmd_type + hrn_hex)
icn_packet.fill_packet()
reply = self.send(icn_packet)
cmd_type = int(binascii.b2a_hex(reply.payload[:1]), 16)
ack = int(binascii.b2a_hex(reply.payload[1:2]), 16)
if cmd_type == 6 and ack == 1:
hrn_len = int(binascii.b2a_hex(reply.payload[2:3]), 16)
hrn = reply.payload[3:3 + hrn_len].decode("utf-8")
return hrn
else:
return None
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
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)