3 # SPDX-License-Identifier: BSD-2-Clause
5 # Copyright (c) 2019 Netflix, Inc.
7 # Redistribution and use in source and binary forms, with or without
8 # modification, are permitted provided that the following conditions
10 # 1. Redistributions of source code must retain the above copyright
11 # notice, this list of conditions and the following disclaimer.
12 # 2. Redistributions in binary form must reproduce the above copyright
13 # notice, this list of conditions and the following disclaimer in the
14 # documentation and/or other materials provided with the distribution.
16 # THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 # ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 # IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 # ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 # FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 # DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 # OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 # HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 # LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 # OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 import random as random
34 logging.getLogger("scapy").setLevel(logging.CRITICAL)
35 import scapy.all as sp
40 parser = argparse.ArgumentParser("frag6.py",
41 description="IPv6 fragementation test tool")
42 parser.add_argument('--sendif', nargs=1,
44 help='The interface through which the packet will be sent')
45 parser.add_argument('--recvif', nargs=1,
47 help='The interface on which to check for the packet')
48 parser.add_argument('--src', nargs=1,
50 help='The source IP address')
51 parser.add_argument('--to', nargs=1,
53 help='The destination IP address')
54 parser.add_argument('--debug',
55 required=False, action='store_true',
56 help='Enable test debugging')
58 args = parser.parse_args()
61 ########################################################################
63 # Send a sample of pseudo-random fragments into the system in order
64 # to test vnet teardown.
66 # A: Cleaned up and freed
67 # R: No panic (ignoring everything else)
73 for i in range(0,127):
74 fid=random.randint(0,0xffff)
75 foffset=random.randint(0,0xffff)
76 fm=random.randint(0,1)
78 ip6f01 = sp.Ether() / \
79 sp.IPv6(src=fsrc, dst=args.to[0]) / \
80 sp.IPv6ExtHdrFragment(offset=foffset, m=fm, id=fid) / \
81 sp.UDP(dport=3456, sport=6543)
84 packets.append(ip6f01)
87 sp.sendp(p, iface=args.sendif[0], verbose=False)
91 if __name__ == '__main__':