From nobody Mon Dec 06 12:25:50 2021 X-Original-To: dev-commits-src-all@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 848F818CA82E; Mon, 6 Dec 2021 12:25:52 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from mxrelay.nyi.freebsd.org (mxrelay.nyi.freebsd.org [IPv6:2610:1c1:1:606c::19:3]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256 client-signature RSA-PSS (4096 bits) client-digest SHA256) (Client CN "mxrelay.nyi.freebsd.org", Issuer "R3" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 4J72hb0rjCz3Ghq; Mon, 6 Dec 2021 12:25:50 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org (gitrepo.freebsd.org [IPv6:2610:1c1:1:6068::e6a:5]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (Client did not present a certificate) by mxrelay.nyi.freebsd.org (Postfix) with ESMTPS id 7573B3A21; Mon, 6 Dec 2021 12:25:50 +0000 (UTC) (envelope-from git@FreeBSD.org) Received: from gitrepo.freebsd.org ([127.0.1.44]) by gitrepo.freebsd.org (8.16.1/8.16.1) with ESMTP id 1B6CPoHQ048237; Mon, 6 Dec 2021 12:25:50 GMT (envelope-from git@gitrepo.freebsd.org) Received: (from git@localhost) by gitrepo.freebsd.org (8.16.1/8.16.1/Submit) id 1B6CPoVL048236; Mon, 6 Dec 2021 12:25:50 GMT (envelope-from git) Date: Mon, 6 Dec 2021 12:25:50 GMT Message-Id: <202112061225.1B6CPoVL048236@gitrepo.freebsd.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-main@FreeBSD.org From: Kristof Provost Subject: git: 60a3a371afa7 - main - pf tests: more thorough pfsync defer test List-Id: Commit messages for all branches of the src repository List-Archive: https://lists.freebsd.org/archives/dev-commits-src-all List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-dev-commits-src-all@freebsd.org X-BeenThere: dev-commits-src-all@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 8bit X-Git-Committer: kp X-Git-Repository: src X-Git-Refname: refs/heads/main X-Git-Reftype: branch X-Git-Commit: 60a3a371afa73ddbc085a7af044a4a860a998c57 Auto-Submitted: auto-generated ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=freebsd.org; s=dkim; t=1638793551; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=i4ttOf8HYj1wEldF2uQFlpLgq7+R32Xd9EkL44nuMMs=; b=vJMX7iQlB5FRi7FKtKwgCcPsdL4o/B0r1ic/YIhanQ9DSciDqu04SfkSo9jgb6M1klMNtD XyjZgvgl9nlaJcUB2FbaQJ2oiZ1aJzJliILsijuyLBgp1JH0ZUm7uQZa1Px8LgwQhS+Vl3 FtkIPPanZRN3nDTMSoaN49G8mzY+vhmnSJysuWz7/CyN7jgewbA5/TYDmXeu6rWFhqzr8a NMx2AbsswLhD1Tl7AnbKFApcsp4IrMW8pSs8YCQB7/OMKFpYzyS3Fh3Klx0QsnHqfwoZcm kz5HdoED8uQaufbIB/D5Ido4ARz6uYY2p84OfipGWOpTjdh0XSx2sDyLn6Os7w== ARC-Seal: i=1; s=dkim; d=freebsd.org; t=1638793551; a=rsa-sha256; cv=none; b=eIyi5dRnfp0g48M6eBVagIuKL7yG7apU5RqPJHxbsQZ8higXAxVkzdPpRzQqCeGzoDzfW8 WM2IQvB8LfvLtJlk2BlJrGCLM0tOAVIZ9o8EnKFrjpF1oMtzW5YzGEFD5miYRuBlUDJ09X NXy2ff1GsvIiNczP+9bo/xQs22Soyj+gB7VdJLrMQ385w4sMnXfH9QY6Ok2LTlRlmeGSOz Eps7uaBtapp7jEE1OhjFE/K37TtHfEwFuIS6gkHX5zWpRHWO/Tsrv6QYg/civb+95fSudx ft/nzFAzQThe/TOzkAB93wFRYHkoI6K6F92YmwYMq24T9+rhzxL5T0FRjzYhDQ== ARC-Authentication-Results: i=1; mx1.freebsd.org; none X-ThisMailContainsUnwantedMimeParts: N The branch main has been updated by kp: URL: https://cgit.FreeBSD.org/src/commit/?id=60a3a371afa73ddbc085a7af044a4a860a998c57 commit 60a3a371afa73ddbc085a7af044a4a860a998c57 Author: Kristof Provost AuthorDate: 2021-12-02 17:47:40 +0000 Commit: Kristof Provost CommitDate: 2021-12-06 12:25:14 +0000 pf tests: more thorough pfsync defer test Add a somewhat more extensive pfsync defer mode test. Ensure that pfsync actually delays the state creating packet until after it has sent the pfsync update and given the peer time to create the state. Ideally the test should validate the pfsync state update and generate an ack message, but to keep the test simple we rely on the timeout of the deferred packet instead. MFC after: 1 week Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D33245 --- tests/sys/netpfil/pf/Makefile | 2 + tests/sys/netpfil/pf/pfsync.sh | 71 ++++++++++++++++++- tests/sys/netpfil/pf/pfsync_defer.py | 131 +++++++++++++++++++++++++++++++++++ 3 files changed, 203 insertions(+), 1 deletion(-) diff --git a/tests/sys/netpfil/pf/Makefile b/tests/sys/netpfil/pf/Makefile index e62f3485d26d..a5d3e30ca22e 100644 --- a/tests/sys/netpfil/pf/Makefile +++ b/tests/sys/netpfil/pf/Makefile @@ -40,6 +40,7 @@ ${PACKAGE}FILES+= CVE-2019-5597.py \ frag-overindex.py \ frag-overlimit.py \ frag-overreplace.py \ + pfsync_defer.py \ utils.subr ${PACKAGE}FILESMODE_CVE-2019-5597.py= 0555 @@ -48,5 +49,6 @@ ${PACKAGE}FILESMODE_fragcommon.py= 0555 ${PACKAGE}FILESMODE_frag-overindex.py= 0555 ${PACKAGE}FILESMODE_frag-overlimit.py= 0555 ${PACKAGE}FILESMODE_frag-overreplace.py= 0555 +${PACKAGE}FILESMODE_pfsync_defer.py= 0555 .include diff --git a/tests/sys/netpfil/pf/pfsync.sh b/tests/sys/netpfil/pf/pfsync.sh index a6fc7ec9f7e9..1422c0b47c49 100644 --- a/tests/sys/netpfil/pf/pfsync.sh +++ b/tests/sys/netpfil/pf/pfsync.sh @@ -27,6 +27,8 @@ . $(atf_get_srcdir)/utils.subr +common_dir=$(atf_get_srcdir)/../common + atf_test_case "basic" "cleanup" basic_head() { @@ -95,6 +97,23 @@ basic_cleanup() pfsynct_cleanup } +atf_test_case "basic_defer" "cleanup" +basic_defer_head() +{ + atf_set descr 'Basic defer mode pfsync test' + atf_set require.user root +} + +basic_defer_body() +{ + common_body defer +} + +basic_defer_cleanup() +{ + pfsynct_cleanup +} + atf_test_case "defer" "cleanup" defer_head() { @@ -104,7 +123,56 @@ defer_head() defer_body() { - common_body defer + pfsynct_init + + epair_sync=$(vnet_mkepair) + epair_in=$(vnet_mkepair) + epair_out=$(vnet_mkepair) + + vnet_mkjail alcatraz ${epair_sync}a ${epair_in}a ${epair_out}a + + jexec alcatraz ifconfig ${epair_sync}a 192.0.2.1/24 up + jexec alcatraz ifconfig ${epair_out}a 198.51.100.1/24 up + jexec alcatraz ifconfig ${epair_in}a 203.0.113.1/24 up + jexec alcatraz arp -s 203.0.113.2 00:01:02:03:04:05 + jexec alcatraz sysctl net.inet.ip.forwarding=1 + + jexec alcatraz ifconfig pfsync0 \ + syncdev ${epair_sync}a \ + maxupd 1 \ + defer \ + up + + ifconfig ${epair_sync}b 192.0.2.2/24 up + ifconfig ${epair_out}b 198.51.100.2/24 up + ifconfig ${epair_in}b up + route add -net 203.0.113.0/24 198.51.100.1 + + # Enable pf + jexec alcatraz pfctl -e + pft_set_rules alcatraz \ + "set skip on ${epair_sync}a" \ + "pass keep state" + + atf_check -s exit:0 env PYTHONPATH=${common_dir} \ + $(atf_get_srcdir)/pfsync_defer.py \ + --syncdev ${epair_sync}b \ + --indev ${epair_in}b \ + --outdev ${epair_out}b + + # Now disable defer mode and expect failure. + jexec alcatraz ifconfig pfsync0 -defer + + # Flush state + pft_set_rules alcatraz \ + "set skip on ${epair_sync}a" \ + "pass keep state" + + atf_check -s exit:1 env PYTHONPATH=${common_dir} \ + $(atf_get_srcdir)/pfsync_defer.py \ + --syncdev ${epair_sync}b \ + --indev ${epair_in}b \ + --outdev ${epair_out}b } defer_cleanup() @@ -182,6 +250,7 @@ bulk_cleanup() atf_init_test_cases() { atf_add_test_case "basic" + atf_add_test_case "basic_defer" atf_add_test_case "defer" atf_add_test_case "bulk" } diff --git a/tests/sys/netpfil/pf/pfsync_defer.py b/tests/sys/netpfil/pf/pfsync_defer.py new file mode 100644 index 000000000000..4a691240b466 --- /dev/null +++ b/tests/sys/netpfil/pf/pfsync_defer.py @@ -0,0 +1,131 @@ +#!/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 socket +import sys +import time +from sniffer import Sniffer + +got_pfsync = False +got_ping = False +sent_ping = False + +def check_pfsync(args, packet): + global got_pfsync + global got_ping + + ip = packet.getlayer(sp.IP) + if not ip: + return False + + if ip.proto != 240: + return False + + # Only look at the first packet + if got_pfsync: + return False + + got_pfsync = time.time() + + return False + +def check_reply(args, packet): + global got_pfsync + global got_ping + + if not packet.getlayer(sp.ICMP): + return False + + # Only look at the first packet + if got_ping: + return False + + got_ping = time.time() + + return False + +def ping(intf): + global sent_ping + + ether = sp.Ether() + ip = sp.IP(dst="203.0.113.2", src="198.51.100.2") + icmp = sp.ICMP(type='echo-request') + raw = sp.raw(bytes.fromhex('00010203')) + + req = ether / ip / icmp / raw + sp.sendp(req, iface=intf, verbose=False) + sent_ping = time.time() + +def main(): + global got_pfsync + global got_ping + global sent_ping + + parser = argparse.ArgumentParser("pfsync_defer.py", + description="pfsync defer mode test") + parser.add_argument('--syncdev', nargs=1, + required=True, + help='The pfsync interface') + parser.add_argument('--outdev', nargs=1, + required=True, + help='The interface we will send packets on') + parser.add_argument('--indev', nargs=1, + required=True, + help='The interface we will receive packets on') + + args = parser.parse_args() + + syncmon = Sniffer(args, check_pfsync, args.syncdev[0]) + datamon = Sniffer(args, check_reply, args.indev[0]) + + # Send traffic on datadev, which should create state and produce a pfsync message + ping(args.outdev[0]) + + syncmon.join() + datamon.join() + + if not got_pfsync: + sys.exit(1) + + if not got_ping: + sys.exit(1) + + if got_pfsync > got_ping: + sys.exit(1) + + # Deferred packets are delayed up to 20ms (unless the pfsync peer, which we + # don't have here, acks their state update earlier) + if (sent_ping + 0.020) > got_ping: + sys.exit(1) + +if __name__ == '__main__': + main()