def testBuildMatch(self):
pkt = Ethernet(src="11:22:33:44:55:66", dst="aa:bb:cc:dd:ee:ff") + \
IPv4(src="1.2.3.4", dst="5.6.7.8", protocol=6) + \
TCP(srcport=4000, dstport=10000)
m = OpenflowMatch.build_from_packet(pkt)
self.assertEqual(m.dl_src, "11:22:33:44:55:66")
self.assertEqual(m.dl_dst, "aa:bb:cc:dd:ee:ff")
self.assertEqual(m.dl_vlan, 0)
self.assertEqual(m.dl_vlan_pcp, 0)
self.assertEqual(m.nw_proto.value, 6)
self.assertEqual(m.nw_tos, 0)
self.assertEqual(str(m.nw_src), "1.2.3.4")
self.assertEqual(str(m.nw_dst), "5.6.7.8")
self.assertEqual(m.tp_src, 4000)
self.assertEqual(m.tp_dst, 10000)
def testPacketMatch(self):
pkt = Ethernet(src="11:22:33:44:55:66", dst="aa:bb:cc:dd:ee:ff") + \
IPv4(src="1.2.3.4", dst="5.6.7.8", protocol=6) + \
TCP(srcport=4000, dstport=10000)
m = OpenflowMatch.build_from_packet(pkt)
self.assertTrue(m.matches_packet(pkt))
pkt[TCP].srcport = 42
self.assertFalse(m.matches_packet(pkt))
m.add_wildcard(OpenflowWildcard.TpSrc)
self.assertTrue(m.matches_packet(pkt))
pkt[IPv4].src = "1.2.3.0"
self.assertFalse(m.matches_packet(pkt))
m.nwsrc_wildcard = 8
self.assertTrue(m.matches_packet(pkt))
def _storePkt(self, ofhdr, dstport=6633):
# comment the return to save pcap packets for analysis
return
pkt = (Ethernet(src="11:22:33:44:55:66") + IPv4() + TCP()) + ofhdr
xname = pkt[OpenflowHeader].type.name
dumper = PcapDumper("oftests_{}.pcap".format(xname))
pkt[Ethernet].dst = ''.join(list(reversed("11:22:33:44:55:66")))
pkt[IPv4].protocol = 6
pkt[IPv4].src = "149.43.80.25"
pkt[IPv4].dst = "149.43.80.25"
pkt[IPv4].ttl = 5
pkt[IPv4].ipid = 42
pkt[TCP].dstport = dstport
pkt[TCP].srcport = 5555
pkt[TCP].window = 1000
pkt[TCP].seq = 42
pkt[TCP].ack = 500
pkt[TCP].PSH = 1
pkt[TCP].ACK = 1
dumper.write_packet(pkt.to_bytes(), time())
dumper.close()