3 # SPDX-License-Identifier: BSD-2-Clause
5 # Copyright (c) 2020 Alexander V. Chernikov
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
31 from socket import socket, PF_DIVERT, SOCK_RAW
33 logging.getLogger("scapy").setLevel(logging.CRITICAL)
34 import scapy.all as sc
39 parser = argparse.ArgumentParser(description='divert socket tester')
40 parser.add_argument('--dip', type=str, help='destination packet IP')
41 parser.add_argument('--sip', type=str, help='source packet IP')
42 parser.add_argument('--divert_port', type=int, default=6668,
43 help='divert port to use')
44 parser.add_argument('--test_name', type=str, required=True,
45 help='test name to run')
46 return parser.parse_args()
49 def ipdivert_ip_output_remote_success(args):
50 packet = sc.IP(dst=args.dip) / sc.ICMP(type='echo-request')
51 with socket(PF_DIVERT, SOCK_RAW, 0) as s:
52 s.bind(('0.0.0.0', args.divert_port))
53 s.sendto(bytes(packet), ('0.0.0.0', 0))
56 def ipdivert_ip6_output_remote_success(args):
57 packet = sc.IPv6(dst=args.dip) / sc.ICMPv6EchoRequest()
58 with socket(PF_DIVERT, SOCK_RAW, 0) as s:
59 s.bind(('0.0.0.0', args.divert_port))
60 s.sendto(bytes(packet), ('0.0.0.0', 0))
63 def ipdivert_ip_input_local_success(args):
64 """Sends IPv4 packet to OS stack as inbound local packet."""
65 packet = sc.IP(dst=args.dip,src=args.sip) / sc.ICMP(type='echo-request')
66 with socket(PF_DIVERT, SOCK_RAW, 0) as s:
67 s.bind(('0.0.0.0', args.divert_port))
68 s.sendto(bytes(packet), (args.dip, 0))
71 # XXX: IPv6 local divert is currently not supported
72 # TODO: add IPv4 ifname output verification
77 test_ptr = globals()[args.test_name]
81 if __name__ == '__main__':