Date: Fri, 9 Jul 2021 13:24:24 GMT From: Kristof Provost <kp@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 36c08263b74d - stable/13 - pf tests: Stress state retrieval Message-ID: <202107091324.169DOOav063345@gitrepo.freebsd.org>
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The branch stable/13 has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=36c08263b74db894722c952612a22c6f21c23c8c commit 36c08263b74db894722c952612a22c6f21c23c8c Author: Kristof Provost <kp@FreeBSD.org> AuthorDate: 2021-06-28 10:48:20 +0000 Commit: Kristof Provost <kp@FreeBSD.org> CommitDate: 2021-07-09 08:07:10 +0000 pf tests: Stress state retrieval Create and retrieve 20.000 states. There have been issues with nvlists causing very slow state retrieval. We don't impose a specific limit on the time required to retrieve the states, but do log it. In excessive cases the Kyua timeout will fail this test. Reviewed by: donner MFC after: 1 week Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D30943 (cherry picked from commit d8d43b2de1fa679179f7089cb3c31e6780ec82af) --- tests/sys/netpfil/common/Makefile | 2 + tests/sys/netpfil/common/pft_synflood.py | 62 ++++++++++++++++++++++++ tests/sys/netpfil/pf/Makefile | 1 + tests/sys/netpfil/pf/get_state.sh | 81 ++++++++++++++++++++++++++++++++ 4 files changed, 146 insertions(+) diff --git a/tests/sys/netpfil/common/Makefile b/tests/sys/netpfil/common/Makefile index e63a23b59687..915c19ba590c 100644 --- a/tests/sys/netpfil/common/Makefile +++ b/tests/sys/netpfil/common/Makefile @@ -16,8 +16,10 @@ ${PACKAGE}FILES+= \ utils.subr \ runner.subr \ pft_ping.py \ + pft_synflood.py \ sniffer.py ${PACKAGE}FILESMODE_pft_ping.py= 0555 +${PACKAGE}FILESMODE_pft_synflood.py= 0555 .include <bsd.test.mk> diff --git a/tests/sys/netpfil/common/pft_synflood.py b/tests/sys/netpfil/common/pft_synflood.py new file mode 100644 index 000000000000..3d37724593e2 --- /dev/null +++ b/tests/sys/netpfil/common/pft_synflood.py @@ -0,0 +1,62 @@ +#!/usr/bin/env python3 +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# 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 + +def syn_flood(args): + s = sp.conf.L2socket(iface=args.sendif[0]) + + # Set a src mac, to avoid doing lookups which really slow us down. + ether = sp.Ether(src='01:02:03:04:05') + ip = sp.IP(dst=args.to[0]) + for i in range(int(args.count[0])): + tcp = sp.TCP(flags='S', sport=1+i, dport=22, seq=500+i) + pkt = ether / ip / tcp + s.send(pkt) + +def main(): + parser = argparse.ArgumentParser("pft_synflood.py", + description="SYN flooding tool") + parser.add_argument('--sendif', nargs=1, + required=True, + help='The interface through which the packet(s) will be sent') + parser.add_argument('--to', nargs=1, + required=True, + help='The destination IP address for the SYN packets') + parser.add_argument('--count', nargs=1, + required=True, + help='The number of packets to send') + + args = parser.parse_args() + + syn_flood(args) + +if __name__ == '__main__': + main() diff --git a/tests/sys/netpfil/pf/Makefile b/tests/sys/netpfil/pf/Makefile index b693ca63adcb..e5139b4262e1 100644 --- a/tests/sys/netpfil/pf/Makefile +++ b/tests/sys/netpfil/pf/Makefile @@ -10,6 +10,7 @@ ATF_TESTS_SH+= anchor \ dup \ forward \ fragmentation \ + get_state \ icmp \ killstate \ map_e \ diff --git a/tests/sys/netpfil/pf/get_state.sh b/tests/sys/netpfil/pf/get_state.sh new file mode 100644 index 000000000000..5e6a9040e016 --- /dev/null +++ b/tests/sys/netpfil/pf/get_state.sh @@ -0,0 +1,81 @@ +# $FreeBSD$ +# +# SPDX-License-Identifier: BSD-2-Clause-FreeBSD +# +# 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. + +. $(atf_get_srcdir)/utils.subr + +common_dir=$(atf_get_srcdir)/../common + +atf_test_case "many" "cleanup" +many_head() +{ + atf_set descr 'Test retrieving many states' + atf_set require.user root + atf_set require.progs scapy +} + +many_body() +{ + pft_init + + epair=$(vnet_mkepair) + ifconfig ${epair}a 192.0.2.1/24 up + + vnet_mkjail alcatraz ${epair}b + jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up + jexec alcatraz pfctl -e + + pft_set_rules alcatraz "set timeout tcp.closed 60000" \ + "pass in proto icmp" \ + "pass in proto tcp" + + # Sanity check + atf_check -s exit:0 -o ignore ping -c 1 -W 1 192.0.2.2 + + # Now syn flood to create many states + ${common_dir}/pft_synflood.py \ + --sendif ${epair}a \ + --to 192.0.2.2 \ + --count 20000 + + count=$(time jexec alcatraz pfctl -ss | wc -l 2>time.txt) + echo "Found $count states in `cat time.txt`" + if [ $count -lt 20000 ]; + then + atf_fail "Fail to retrieve states" + fi +} + +many_cleanup() +{ + rm -f time.txt + pft_cleanup +} + +atf_init_test_cases() +{ + atf_add_test_case "many" +}
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