1#!/usr/bin/env python 2# 3# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 4# 5# Copyright (c) 2019 Synacktiv 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 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. 15# 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 26# SUCH DAMAGE. 27 28import random 29import scapy.all as sp 30import sys 31 32UDP_PROTO = 17 33AH_PROTO = 51 34FRAG_PROTO = 44 35 36def main(): 37 intf = sys.argv[1] 38 ipv6_src = sys.argv[2] 39 ipv6_dst = sys.argv[3] 40 41 ipv6_main = sp.IPv6(dst=ipv6_dst, src=ipv6_src) 42 43 padding = 8 44 fid = random.randint(0,100000) 45 frag_0 = sp.IPv6ExtHdrFragment(id=fid, nh=UDP_PROTO, m=1, offset=0) 46 foff_1 = (int)(padding/8) 47 frag_1 = sp.IPv6ExtHdrFragment(id=fid, nh=UDP_PROTO, m=0, offset=foff_1) 48 49 pkt1_opts = sp.AH(nh=AH_PROTO, payloadlen=200) \ 50 / sp.Raw('XXXX' * 199) \ 51 / sp.AH(nh=FRAG_PROTO, payloadlen=1) \ 52 / frag_1 53 54 pkt0 = sp.Ether() / ipv6_main / frag_0 / sp.Raw('A' * padding) 55 pkt1 = sp.Ether() / ipv6_main / pkt1_opts / sp.Raw('B' * padding) 56 57 sp.sendp(pkt0, iface=intf, verbose=False) 58 sp.sendp(pkt1, iface=intf, verbose=False) 59 60if __name__ == '__main__': 61 main() 62