3 # Copyright (c) 2016 Cisco and/or its affiliates.
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at:
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
16 """Traffic script for ICMPv6 echo test."""
20 logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
21 from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
22 from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
23 from scapy.layers.inet6 import IPv6, ICMPv6ND_NA, ICMPv6NDOptDstLLAddr
24 from scapy.layers.inet6 import ICMPv6EchoRequest, ICMPv6EchoReply
25 from scapy.all import Ether
29 args = TrafficScriptArg(['src_mac', 'dst_mac', 'src_ip', 'dst_ip'])
31 rxq = RxQueue(args.get_arg('rx_if'))
32 txq = TxQueue(args.get_arg('tx_if'))
34 src_mac = args.get_arg('src_mac')
35 dst_mac = args.get_arg('dst_mac')
36 src_ip = args.get_arg('src_ip')
37 dst_ip = args.get_arg('dst_ip')
43 # send ICMPv6 neighbor advertisement message
44 pkt_send = (Ether(src=src_mac, dst='ff:ff:ff:ff:ff:ff') /
45 IPv6(src=src_ip, dst='ff02::1:ff00:2') /
46 ICMPv6ND_NA(tgt=src_ip, R=0) /
47 ICMPv6NDOptDstLLAddr(lladdr=src_mac))
48 sent_packets.append(pkt_send)
51 # send ICMPv6 echo request
52 pkt_send = (Ether(src=src_mac, dst=dst_mac) /
53 IPv6(src=src_ip, dst=dst_ip) /
54 ICMPv6EchoRequest(id=echo_id, seq=echo_seq))
55 sent_packets.append(pkt_send)
58 # receive ICMPv6 echo reply
59 ether = rxq.recv(2, sent_packets)
61 raise RuntimeError('ICMPv6 echo reply Rx timeout')
63 if not ether.haslayer(IPv6):
64 raise RuntimeError('Unexpected packet with no IPv6 received {0}'.format(
69 if not ipv6.haslayer(ICMPv6EchoReply):
71 'Unexpected packet with no IPv6 ICMP received {0}'.format(
74 icmpv6 = ipv6['ICMPv6 Echo Reply']
76 # check identifier and sequence number
77 if icmpv6.id != echo_id or icmpv6.seq != echo_seq:
79 'Invalid ICMPv6 echo reply received ID {0} seq {1} should be ' +
80 'ID {2} seq {3}'.format(icmpv6.id, icmpv6.seq, echo_id, echo_seq))
85 tmp = ICMPv6EchoReply(str(icmpv6))
86 if tmp.cksum != cksum:
88 'Invalid checksum {0} should be {1}'.format(cksum, tmp.cksum))
92 if __name__ == "__main__":