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,\
24 from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
25 from scapy.layers.inet6 import IPv6, ICMPv6ND_NA, ICMPv6NDOptDstLLAddr
26 from scapy.layers.inet6 import ICMPv6EchoRequest, ICMPv6EchoReply
27 from scapy.all import Ether
31 # start_size - start size of the ICMPv6 echo data
32 # end_size - end size of the ICMPv6 echo data
33 # step - increment step
34 args = TrafficScriptArg(['src_mac', 'dst_mac', 'src_ip', 'dst_ip',
35 'start_size', 'end_size', 'step'])
37 rxq = RxQueue(args.get_arg('rx_if'))
38 txq = TxQueue(args.get_arg('tx_if'))
40 src_mac = args.get_arg('src_mac')
41 dst_mac = args.get_arg('dst_mac')
42 src_ip = args.get_arg('src_ip')
43 dst_ip = args.get_arg('dst_ip')
44 start_size = int(args.get_arg('start_size'))
45 end_size = int(args.get_arg('end_size'))
46 step = int(args.get_arg('step'))
48 # generate some random data buffer
49 data = bytearray(os.urandom(end_size))
51 # send ICMPv6 neighbor advertisement message
53 pkt_send = (Ether(src=src_mac, dst=dst_mac) /
54 IPv6(src=src_ip, dst=dst_ip) /
55 ICMPv6ND_NA(tgt=src_ip, R=0) /
56 ICMPv6NDOptDstLLAddr(lladdr=src_mac))
57 sent_packets.append(pkt_send)
60 # send ICMPv6 echo request with incremented data length and receive ICMPv6
62 for echo_seq in range(start_size, end_size+1, step):
63 pkt_send = (Ether(src=src_mac, dst=dst_mac) /
64 IPv6(src=src_ip, dst=dst_ip) /
65 ICMPv6EchoRequest(id=echo_id, seq=echo_seq,
66 data=data[0:echo_seq]))
67 sent_packets.append(pkt_send)
70 ether = rxq.recv(ignore=sent_packets)
73 'ICMPv6 echo reply seq {0} Rx timeout'.format(echo_seq))
75 if not ether.haslayer(IPv6):
77 'Unexpected packet with no IPv6 received {0}'.format(
82 if not ipv6.haslayer(ICMPv6EchoReply):
84 'Unexpected packet with no IPv6 ICMP received {0}'.format(
87 icmpv6 = ipv6['ICMPv6 Echo Reply']
89 if icmpv6.id != echo_id or icmpv6.seq != echo_seq:
91 'Invalid ICMPv6 echo reply received ID {0} seq {1} should be ' \
92 'ID {2} seq {3}, {0}'.format(icmpv6.id, icmpv6.seq, echo_id,
97 tmp = ICMPv6EchoReply(str(icmpv6))
98 if not checksum_equal(tmp.cksum, cksum):
100 'Invalid checksum {0} should be {1}'.format(cksum, tmp.cksum))
104 if __name__ == "__main__":