% Tests for OpenFlow v1.0 with Scapy

+ Preparation
= Be sure we have loaded OpenFlow v1
load_contrib("openflow")

+ Usual OFv1.0 messages

= OFPTHello(), simple hello message
ofm = OFPTHello()
raw(ofm) == b'\x01\x00\x00\x08\x00\x00\x00\x00'

= OFPTEchoRequest(), echo request
ofm = OFPTEchoRequest()
raw(ofm) == b'\x01\x02\x00\x08\x00\x00\x00\x00'

= OFPMatch(), check wildcard completion
ofm = OFPMatch(in_port=1, nw_tos=8)
ofm = OFPMatch(raw(ofm))
assert(ofm.wildcards1 == 0x1)
ofm.wildcards2 == 0xee

= OpenFlow(), generic method test with OFPTEchoRequest()
ofm = OFPTEchoRequest()
s = raw(ofm)
isinstance(OpenFlow(s), OFPTEchoRequest)

= OFPTFlowMod(), check codes and defaults values
ofm = OFPTFlowMod(cmd='OFPFC_DELETE', out_port='CONTROLLER', flags='CHECK_OVERLAP+EMERG')
assert(ofm.cmd == 3)
assert(ofm.buffer_id == 0xffffffff)
assert(ofm.out_port == 0xfffd)
ofm.flags == 6

+ Complex OFv1.0 messages

= OFPTFlowMod(), complex flow_mod
mtc = OFPMatch(dl_vlan=10, nw_src='192.168.42.0', nw_src_mask=8)
act1 = OFPATSetNwSrc(nw_addr='192.168.42.1')
act2 = OFPATOutput(port='CONTROLLER')
act3 = OFPATSetDlSrc(dl_addr='1a:d5:cb:4e:3c:64')
ofm = OFPTFlowMod(priority=1000, match=mtc, flags='CHECK_OVERLAP', actions=[act1,act2,act3])
raw(ofm)
s = b'\x01\x0e\x00h\x00\x00\x00\x00\x00?\xc8\xed\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\n\x00\x00\x08\x00\x00\x00\x00\x00\xc0\xa8*\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x03\xe8\xff\xff\xff\xff\xff\xff\x00\x02\x00\x06\x00\x08\xc0\xa8*\x01\x00\x00\x00\x08\xff\xfd\xff\xff\x00\x04\x00\x10\x1a\xd5\xcbN<d\x00\x00\x00\x00\x00\x00'
raw(ofm) == s

= OFPETBadRequest() containing a flow_mod with wrong table_id
flowmod = OFPTFlowMod(actions=OFPATOutput(port='LOCAL'))
ofm = OFPETBadRequest(errcode='OFPBRC_EPERM', data=raw(flowmod))
hexdump(ofm)
s = b'\x01\x01\x00\\\x00\x00\x00\x00\x00\x01\x00\x05\x01\x0e\x00P\x00\x00\x00\x00\x00?\xff\xff\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\xff\xff\x00\x00\x00\x00\x00\x08\xff\xfe\xff\xff'
raw(ofm) == s

= OFPTPacketIn() containing an Ethernet frame
ofm = OFPTPacketIn(data=Ether()/IP()/ICMP())
p = OFPTPacketIn(raw(ofm))
dat = p.data
assert(isinstance(dat, Ether))
assert(isinstance(dat.payload, IP))
isinstance(dat.payload.payload, ICMP)

= OFPTStatsReplyFlow()
pkt = TCP()/OFPTStatsReplyFlow(flow_stats=[OFPFlowStats(actions=[OFPATSetTpSrc()])])
pkt = TCP(raw(pkt))
assert isinstance(pkt.flow_stats[0].actions[0], OFPATSetTpSrc)

= OFPTQueueGetConfigReply()
pkt = TCP()/OFPTQueueGetConfigReply(queues=[OFPPacketQueue(properties=[OFPQTMinRate(rate=123)])])
pkt = TCP(raw(pkt))
assert pkt.queues[0].properties[0].rate == 123

= OFPETHelloFailed()
pkt = OFPETHelloFailed(data=OFPTEchoRequest())
pkt = OFPETHelloFailed(raw(pkt))
assert isinstance(pkt.data, OFPTEchoRequest)

+ Layer bindings

= TCP()/OFPTStatsRequestDesc(), check default sport
p = TCP()/OFPTStatsRequestDesc()
p[TCP].sport == 6653

= TCP()/OFPETHelloFailed(), check default dport
p = TCP()/OFPETHelloFailed()
p[TCP].dport == 6653

= TCP()/OFPTHello() dissection, check new TCP.guess_payload_class
o = TCP(dport=6653)/OFPTHello()
p = TCP(raw(o))
p[TCP].sport == 6653
isinstance(p[TCP].payload, OFPTHello)

= complete Ether()/IP()/TCP()/OFPTFeaturesRequest()
ofm = Ether(src='00:11:22:33:44:55',dst='01:23:45:67:89:ab')/IP(src='10.0.0.7',dst='192.168.0.42')/TCP(sport=6633, dport=6633)/OFPTFeaturesRequest(xid=23)
s = b'\x01#Eg\x89\xab\x00\x11"3DU\x08\x00E\x00\x000\x00\x01\x00\x00@\x06\xaf\xee\n\x00\x00\x07\xc0\xa8\x00*\x19\xe9\x19\xe9\x00\x00\x00\x00\x00\x00\x00\x00P\x02 \x00\x90\x0b\x00\x00\x01\x05\x00\x08\x00\x00\x00\x17'
assert(raw(ofm) == s)
e = Ether(s)
e.show2()
e[OFPTFeaturesRequest].xid == 23