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