87 lines
3.1 KiB
Python
Executable File
87 lines
3.1 KiB
Python
Executable File
#!/usr/bin/env python
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# -
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# SPDX-License-Identifier: BSD-2-Clause
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#
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# Copyright (c) 2020 Alexander V. Chernikov
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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# $FreeBSD$
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#
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import socket
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import logging
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logging.getLogger("scapy").setLevel(logging.CRITICAL)
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import scapy.all as sc
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import argparse
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IPPROTO_DIVERT = 258
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def parse_args():
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parser = argparse.ArgumentParser(description='divert socket tester')
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parser.add_argument('--dip', type=str, help='destination packet IP')
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parser.add_argument('--sip', type=str, help='source packet IP')
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parser.add_argument('--divert_port', type=int, default=6668,
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help='divert port to use')
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parser.add_argument('--test_name', type=str, required=True,
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help='test name to run')
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return parser.parse_args()
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def ipdivert_ip_output_remote_success(args):
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packet = sc.IP(dst=args.dip) / sc.ICMP(type='echo-request')
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with socket.socket(socket.AF_INET, socket.SOCK_RAW, IPPROTO_DIVERT) as s:
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s.bind(('0.0.0.0', args.divert_port))
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s.sendto(bytes(packet), ('0.0.0.0', 0))
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def ipdivert_ip6_output_remote_success(args):
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packet = sc.IPv6(dst=args.dip) / sc.ICMPv6EchoRequest()
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with socket.socket(socket.AF_INET, socket.SOCK_RAW, IPPROTO_DIVERT) as s:
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s.bind(('0.0.0.0', args.divert_port))
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s.sendto(bytes(packet), ('0.0.0.0', 0))
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def ipdivert_ip_input_local_success(args):
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"""Sends IPv4 packet to OS stack as inbound local packet."""
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packet = sc.IP(dst=args.dip,src=args.sip) / sc.ICMP(type='echo-request')
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with socket.socket(socket.AF_INET, socket.SOCK_RAW, IPPROTO_DIVERT) as s:
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s.bind(('0.0.0.0', args.divert_port))
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s.sendto(bytes(packet), (args.dip, 0))
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# XXX: IPv6 local divert is currently not supported
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# TODO: add IPv4 ifname output verification
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def main():
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args = parse_args()
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test_ptr = globals()[args.test_name]
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test_ptr(args)
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if __name__ == '__main__':
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main()
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