def sendLLDPInOF_PACKET_IN_OPENFLOWV1(self, ethernet_data, in_port):
# create OF_PACKET_IN message
packed_data = pI()
packed_data.header.xid = 0
packed_data.buffer_id = 4294967295
packed_data.in_port = in_port
packed_data.reason = pIR.OFPR_ACTION
packed_data.data = ethernet_data
packed_data.total_len = packed_data.get_size() - 8
packed_data = packed_data.pack()
self.s.send(packed_data)
def sendLLDPInOF_PACKET_IN_OPENFLOWV1(self, data):
try:
# ethernet header of lldp
ethernetH = data.data.value
ethernetH = lldp.unpack_ethernet_frame(ethernetH)
# check paket is lldp
if ethernetH[3] != 35020:
return True
# get Src from ethernet header
temp = ethernetH[2] # tuple
temp = list(map(str, temp)) # tuple to list
srcEthernet = ""
hexNumberTemp = ""
for i in temp:
hexNumberTemp = hex(
int(i))[2:] # change number to Hex cut 0x out
if (len(hexNumberTemp) == 1):
srcEthernet += "0" + hexNumberTemp
else:
srcEthernet += hexNumberTemp
srcEthernet += ":"
srcEthernet = srcEthernet[0:len(srcEthernet) - 1] # src ethernet
#data.actions[0].port is output_field
print("output port : " + str(data.actions[0].port))
snmpPosition, tempPort = self.searchSnmpPosition(
data.actions[0].port)
"""
for key , port in self.listActivePort.items():
print("snmp poisition : " + key + " port : " + port.hw_addr)
"""
"""
if snmpPosition == "5" :
print("snmpposition : " + snmpPosition + " port : " + str(tempPort.hw_addr))
"""
# init value
chassis_id = None
port_id = None
if self.dictRemoteSwitchDataFromPort[snmpPosition][2]:
# send Packet_IN contain lldp frame
chassis_id = self.dictRemoteSwitchDataFromPort[snmpPosition][0]
port_id = self.dictRemoteSwitchDataFromPort[snmpPosition][1]
in_port = tempPort.port_no
print("port : " + str(port_id))
else:
tempHwAddr = self.dictRemoteSwitchDataFromPort[snmpPosition][
0][2:]
tempHwAddr = tempHwAddr[0:2] + ":" + tempHwAddr[
2:4] + ":" + tempHwAddr[4:6] + ":" + tempHwAddr[
6:8] + ":" + tempHwAddr[8:10] + ":" + tempHwAddr[10:12]
try:
self.lock.acquire_read()
chassis_id = self.dictAllActivePortInTDA[(
tempHwAddr,
self.dictRemoteSwitchDataFromPort[snmpPosition][1])][0]
port_id = self.dictAllActivePortInTDA[(
tempHwAddr,
self.dictRemoteSwitchDataFromPort[snmpPosition][1])][1]
self.lock.release()
if chassis_id == None:
return False
except Exception as err:
self.lock.release()
in_port = tempPort.port_no
print("612 error : " + chassis_id)
ethernet_data = self.createLLDPPacket(
srcEthernet, bytes(chassis_id, encoding='utf-8'), port_id)
# create OF_PACKET_IN message
packed_data = pI()
packed_data.header.xid = 0
packed_data.buffer_id = 4294967295
packed_data.in_port = in_port
packed_data.reason = pIR.OFPR_ACTION
packed_data.data = ethernet_data
packed_data.total_len = packed_data.get_size() - 8
packed_data = packed_data.pack()
# OF_PACKET_IN -> controller
self.s.send(packed_data)
return True
except Exception as err:
print(" 514 Switch ip " + self.switchIp +
" handling run-time error : " + str(err))
return False
def sendLLDPInOF_PACKET_IN_OPENFLOWV1( self, data ):
try :
# ethernet header of lldp
ethernetH = data.data.value
ethernetH = lldp.unpack_ethernet_frame(ethernetH)
# check paket is lldp
if ethernetH[3] != 35020 :
return True
# get Src from ethernet header
temp = ethernetH[2] # tuple
temp = list(map(str, temp)) # tuple to list
srcEthernet = ""
hexNumberTemp = ""
for i in temp:
hexNumberTemp = hex(int(i))[2:] # change number to Hex cut 0x out
if(len(hexNumberTemp) == 1):
srcEthernet += "0" + hexNumberTemp
else:
srcEthernet += hexNumberTemp
srcEthernet += ":"
srcEthernet = srcEthernet[0: len(srcEthernet)-1] # src ethernet
#print(srcEthernet)
#print(data.actions[0].port)
snmpPosition, tempPort = self.searchSnmpPosition(data.actions[0].port)
#print(dir(tempPort))
"""
for key , port in self.listActivePort.items():
print("snmp poisition : " + key + " port : " + port.hw_addr)
"""
"""
if snmpPosition == "5" :
print("snmpposition : " + snmpPosition + " port : " + str(tempPort.hw_addr))
"""
# send Packet_IN contain lldp frame
chassis_id = self.listRemoteDataFromPort[snmpPosition][0]
port_id = self.listRemoteDataFromPort[snmpPosition][1]
in_port = tempPort.port_no
ethernet_data = self.createLLDPPacket( srcEthernet , bytes(chassis_id, encoding='utf-8') , port_id )
# create OF_PACKET_IN message
packed_data = pI()
packed_data.header.xid = 0
packed_data.buffer_id = 4294967295
packed_data.in_port = in_port
packed_data.reason = pIR.OFPR_ACTION
packed_data.data = ethernet_data
packed_data.total_len = packed_data.get_size()-8
packed_data = packed_data.pack()
# OF_PACKET_IN -> controller
self.s.send( packed_data )
except Exception as err:
print( " 514 Switch ip " + self.switchIp + " handling run-time error : " + str( err ) )
