1#!/usr/bin/env python3 2# 3# SPDX-License-Identifier: BSD-2-Clause 4# 5# Copyright (c) 2021 Rubicon Communications, LLC (Netgate). All Rights Reserved. 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 argparse 29import os 30import logging 31logging.getLogger("scapy").setLevel(logging.CRITICAL) 32import scapy.all as sp 33import sys 34import time 35 36def main(send): 37 parser = argparse.ArgumentParser("frag-overindex.py", 38 description="Fragmentation test tool") 39 parser.add_argument('--to', nargs=1, 40 required=True, 41 help='The address to send the fragmented packets to') 42 parser.add_argument('--fromaddr', nargs=1, 43 required=True, 44 help='The source address for the generated packets') 45 parser.add_argument('--sendif', nargs=1, 46 required=True, 47 help='The interface through which the packet(s) will be sent') 48 parser.add_argument('--recvif', nargs=1, 49 required=True, 50 help='The interface to expect the reply on') 51 52 args = parser.parse_args() 53 54 send(args.fromaddr[0], args.to[0], args.sendif[0], args.recvif[0]) 55