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 IPv6 sweep ping."""
21 logging.getLogger("scapy.runtime").setLevel(logging.ERROR)
22 from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
23 from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
24 from scapy.layers.inet6 import IPv6, ICMPv6ND_NA, ICMPv6NDOptDstLLAddr
25 from scapy.layers.inet6 import ICMPv6EchoRequest, ICMPv6EchoReply
26 from scapy.all import Ether
30 # start_size - start size of the ICMPv6 echo data
31 # end_size - end size of the ICMPv6 echo data
32 # step - increment step
33 args = TrafficScriptArg(['src_mac', 'dst_mac', 'src_ip', 'dst_ip',
34 'start_size', 'end_size', 'step'])
36 rxq = RxQueue(args.get_arg('rx_if'))
37 txq = TxQueue(args.get_arg('tx_if'))
39 src_mac = args.get_arg('src_mac')
40 dst_mac = args.get_arg('dst_mac')
41 src_ip = args.get_arg('src_ip')
42 dst_ip = args.get_arg('dst_ip')
43 start_size = int(args.get_arg('start_size'))
44 end_size = int(args.get_arg('end_size'))
45 step = int(args.get_arg('step'))
47 # generate some random data buffer
48 data = bytearray(os.urandom(end_size))
50 # send ICMPv6 neighbor advertisement message
52 pkt_send = (Ether(src=src_mac, dst=dst_mac) /
53 IPv6(src=src_ip, dst=dst_ip) /
54 ICMPv6ND_NA(tgt=src_ip, R=0) /
55 ICMPv6NDOptDstLLAddr(lladdr=src_mac))
56 sent_packets.append(pkt_send)
59 # send ICMPv6 echo request with incremented data length and receive ICMPv6
61 for echo_seq in range(start_size, end_size+1, step):
62 pkt_send = (Ether(src=src_mac, dst=dst_mac) /
63 IPv6(src=src_ip, dst=dst_ip) /
64 ICMPv6EchoRequest(id=echo_id, seq=echo_seq,
65 data=data[0:echo_seq]))
66 sent_packets.append(pkt_send)
69 ether = rxq.recv(ignore=sent_packets)
72 'ICMPv6 echo reply seq {0} Rx timeout'.format(echo_seq))
74 if not ether.haslayer(IPv6):
76 'Unexpected packet with no IPv6 received {0}'.format(
81 if not ipv6.haslayer(ICMPv6EchoReply):
83 'Unexpected packet with no IPv6 ICMP received {0}'.format(
86 icmpv6 = ipv6['ICMPv6 Echo Reply']
88 if icmpv6.id != echo_id or icmpv6.seq != echo_seq:
90 'Invalid ICMPv6 echo reply received ID {0} seq {1} should be ' +
91 'ID {2} seq {3}, {0}'.format(icmpv6.id, icmpv6.seq, echo_id,
96 tmp = ICMPv6EchoReply(str(icmpv6))
97 if tmp.cksum != cksum:
99 'Invalid checksum {0} should be {1}'.format(cksum, tmp.cksum))
103 if __name__ == "__main__":