diff options
Diffstat (limited to 'tests/sys/netinet6/frag6/frag6_15.py')
| -rw-r--r-- | tests/sys/netinet6/frag6/frag6_15.py | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/tests/sys/netinet6/frag6/frag6_15.py b/tests/sys/netinet6/frag6/frag6_15.py new file mode 100644 index 000000000000..6b27122a33d5 --- /dev/null +++ b/tests/sys/netinet6/frag6/frag6_15.py @@ -0,0 +1,106 @@ +#!/usr/bin/env python +#- +# SPDX-License-Identifier: BSD-2-Clause +# +# Copyright (c) 2019 Netflix, Inc. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# +# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# + +import argparse +import logging +logging.getLogger("scapy").setLevel(logging.CRITICAL) +import scapy.all as sp +import socket +import sys +from time import sleep + +def main(): + parser = argparse.ArgumentParser("frag6.py", + description="IPv6 fragementation test tool") + parser.add_argument('--sendif', nargs=1, + required=True, + help='The interface through which the packet will be sent') + parser.add_argument('--recvif', nargs=1, + required=True, + help='The interface on which to check for the packet') + parser.add_argument('--src', nargs=1, + required=True, + help='The source IP address') + parser.add_argument('--to', nargs=1, + required=True, + help='The destination IP address') + parser.add_argument('--debug', + required=False, action='store_true', + help='Enable test debugging') + + args = parser.parse_args() + + + ######################################################################## + # + # Sysctl set to accept maximum 3 segments on a fragmented packet. + # The 4th packet will flush the entire q6. + # + # A: 4 Discarded. + # R: Silence (statistics only) no ICMPv6 as we skip the off=0 segment. + # + data = "66666666" + for i in range(4): + foffset=16 + (i * (0x100 + (int)(16 / 8))) + ip6f01 = sp.Ether() / \ + sp.IPv6(src=args.src[0], dst=args.to[0]) / \ + sp.IPv6ExtHdrFragment(offset=foffset, m=1, id=15) / \ + sp.UDP(dport=3456, sport=6543) / \ + data + if args.debug : + ip6f01.display() + sp.sendp(ip6f01, iface=args.sendif[0], verbose=False) + + + # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # ## + # + # Sysctl set to accept maximum 3 segments on a fragmented packet. + # The 4th packet will flush the entire q6. + # This time we play proper offset/length games on the packets in order + # to trigger the 2nd test case, with the last packet still having m=1. + # + # A: 4 Discarded. + # R: ICMPv6 timeout expired. + # + data = "66666666" + for i in range(4): + foffset=(i * (int)(16 / 8)) + ip6f01 = sp.Ether() / \ + sp.IPv6(src=args.src[0], dst=args.to[0]) / \ + sp.IPv6ExtHdrFragment(offset=foffset, m=1, id=0x1501) / \ + sp.UDP(dport=3456, sport=6543) / \ + data + if args.debug : + ip6f01.display() + sp.sendp(ip6f01, iface=args.sendif[0], verbose=False) + + sys.exit(0) + +if __name__ == '__main__': + main() |