mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-21 18:27:22 +00:00
3e87f800f0
Use dhclient with its 'vlan-pcp' option to set a VLAN PCP value and
verify that it actually gets set.
MFC after: 1 week
Sponsored by: Rubicon Communications, LLC ("Netgate")
Differential Revision: https://reviews.freebsd.org/D31276
75 lines
2.4 KiB
Python
75 lines
2.4 KiB
Python
#!/usr/bin/env python3
|
|
#
|
|
# SPDX-License-Identifier: BSD-2-Clause
|
|
#
|
|
# Copyright (c) 2021 Rubicon Communications, LLC (Netgate).
|
|
#
|
|
# 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 sys
|
|
import os
|
|
curdir = os.path.dirname(os.path.realpath(__file__))
|
|
netpfil_common = curdir + "/../netpfil/common"
|
|
sys.path.append(netpfil_common)
|
|
from sniffer import Sniffer
|
|
|
|
def check_pcp(args, packet):
|
|
vlan = packet.getlayer(sp.Dot1Q)
|
|
|
|
if vlan is None:
|
|
return False
|
|
|
|
if not packet.getlayer(sp.BOOTP):
|
|
return False
|
|
|
|
if vlan.prio == int(args.expect_pcp[0]):
|
|
return True
|
|
|
|
return False
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser("pcp.py",
|
|
description="PCP test tool")
|
|
parser.add_argument('--recvif', nargs=1,
|
|
required=True,
|
|
help='The interface where to look for packets to check')
|
|
parser.add_argument('--expect-pcp', nargs=1,
|
|
help='The expected PCP value on VLAN packets')
|
|
|
|
args = parser.parse_args()
|
|
|
|
sniffer = Sniffer(args, check_pcp, recvif=args.recvif[0], timeout=20)
|
|
|
|
sniffer.join()
|
|
|
|
if sniffer.foundCorrectPacket:
|
|
sys.exit(0)
|
|
|
|
sys.exit(1)
|
|
|
|
if __name__ == '__main__':
|
|
main()
|