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
33 logging.getLogger("scapy").setLevel(logging.CRITICAL)
34 import scapy.all as sp
39 parser = argparse.ArgumentParser("scapyi386.py",
40 description="IPv6 Ethernet Dest MAC test")
41 parser.add_argument('--sendif', nargs=1,
43 help='The interface through which the packet will be sent')
44 parser.add_argument('--recvif', nargs=1,
46 help='The interface on which to check for the packet')
47 parser.add_argument('--src', nargs=1,
49 help='The source IP address')
50 parser.add_argument('--to', nargs=1,
52 help='The destination IP address')
53 parser.add_argument('--debug',
54 required=False, action='store_true',
55 help='Enable test debugging')
57 args = parser.parse_args()
59 ########################################################################
61 # A test case to check that IPv6 packets are sent with a proper
62 # (resolved) Ethernet Destination MAC address instead of the BCAST one.
63 # This was needed as test cases did not work properly on i386 due to a
64 # scapy BPF parsing bug. (See PR 239380 and duplicates).
66 bcmac = sp.Ether(dst="ff:ff:ff:ff:ff:ff").dst
69 sp.IPv6(src=args.src[0], dst=args.to[0]) / \
70 sp.UDP(dport=3456, sport=6543) / \
72 sp.sendp(pkt, iface=args.sendif[0], verbose=False)
74 eth = pkt.getlayer(sp.Ether)
76 print("No Ether in packet")
80 print("Broadcast dMAC on packet")
86 if __name__ == '__main__':