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author | Kristof Provost <kp@FreeBSD.org> | 2021-07-22 12:50:27 +0000 |
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committer | Kristof Provost <kp@FreeBSD.org> | 2021-08-02 14:50:32 +0000 |
commit | 60c9798db74d0b04dcbb4162d155ecd6b38c0e52 (patch) | |
tree | 4272be62118d6f0acfb058b85ee2196b901a8cb9 /tests/sys/net | |
parent | c9ef3984a1a73cf0d5b0922383d85b0f36ea4ee3 (diff) | |
download | src-60c9798db74d0b04dcbb4162d155ecd6b38c0e52.tar.gz src-60c9798db74d0b04dcbb4162d155ecd6b38c0e52.zip |
net tests: basic test case for bpf(4)'s ability to set vlan pcp
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
(cherry picked from commit 3e87f800f01b6d2cbe49924a01038379889d8b3b)
Diffstat (limited to 'tests/sys/net')
-rw-r--r-- | tests/sys/net/Makefile | 3 | ||||
-rw-r--r-- | tests/sys/net/dhclient_pcp.conf | 1 | ||||
-rwxr-xr-x | tests/sys/net/if_vlan.sh | 47 | ||||
-rw-r--r-- | tests/sys/net/pcp.py | 74 |
4 files changed, 125 insertions, 0 deletions
diff --git a/tests/sys/net/Makefile b/tests/sys/net/Makefile index 40b3a5e5fff6..4771040816b7 100644 --- a/tests/sys/net/Makefile +++ b/tests/sys/net/Makefile @@ -21,8 +21,11 @@ TESTS_SUBDIRS+= routing TEST_METADATA+= is_exclusive=true ${PACKAGE}FILES+= \ + dhclient_pcp.conf \ + pcp.py \ stp.py +${PACKAGE}FILESMODE_pcp.py= 0555 ${PACKAGE}FILESMODE_stp.py= 0555 MAN= diff --git a/tests/sys/net/dhclient_pcp.conf b/tests/sys/net/dhclient_pcp.conf new file mode 100644 index 000000000000..fbd86e5bd0f8 --- /dev/null +++ b/tests/sys/net/dhclient_pcp.conf @@ -0,0 +1 @@ +vlan-pcp 6; diff --git a/tests/sys/net/if_vlan.sh b/tests/sys/net/if_vlan.sh index 2edcb16eab88..517206cb55c7 100755 --- a/tests/sys/net/if_vlan.sh +++ b/tests/sys/net/if_vlan.sh @@ -210,6 +210,52 @@ qinq_dot_cleanup() vnet_cleanup } +atf_test_case "bpf_pcp" "cleanup" +bpf_pcp_head() +{ + atf_set descr 'Set VLAN PCP through BPF' + atf_set require.config 'allow_sysctl_side_effects' + atf_set require.user root + atf_set require.progs scapy +} + +bpf_pcp_body() +{ + vnet_init + + epair=$(vnet_mkepair) + + ifconfig ${epair}a up + + vnet_mkjail alcatraz ${epair}b + vlan=$(jexec alcatraz ifconfig vlan create) + jexec alcatraz ifconfig ${vlan} vlan 42 vlandev ${epair}b + jexec alcatraz ifconfig ${vlan} up + jexec alcatraz ifconfig ${epair}b up + + sysctl net.link.vlan.mtag_pcp=1 + + jexec alcatraz dhclient ${vlan} & + atf_check -s exit:1 -o ignore -e ignore $(atf_get_srcdir)/pcp.py \ + --expect-pcp 6 \ + --recvif ${epair}a + + jexec alcatraz killall dhclient + sleep 1 + + jexec alcatraz dhclient -c $(atf_get_srcdir)/dhclient_pcp.conf ${vlan} & + atf_check -s exit:0 -o ignore -e ignore $(atf_get_srcdir)/pcp.py \ + --expect-pcp 6 \ + --recvif ${epair}a +} + +bpf_pcp_cleanup() +{ + sysctl net.link.vlan.mtag_pcp=0 + jexec alcatraz killall dhclient + vnet_cleanup +} + atf_init_test_cases() { atf_add_test_case "basic" @@ -217,4 +263,5 @@ atf_init_test_cases() atf_add_test_case "qinq_deep" atf_add_test_case "qinq_legacy" atf_add_test_case "qinq_dot" + atf_add_test_case "bpf_pcp" } diff --git a/tests/sys/net/pcp.py b/tests/sys/net/pcp.py new file mode 100644 index 000000000000..cea88faaf438 --- /dev/null +++ b/tests/sys/net/pcp.py @@ -0,0 +1,74 @@ +#!/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() |