1# 2# SPDX-License-Identifier: BSD-2-Clause 3# 4# Copyright (c) 2023 Rubicon Communications, LLC (Netgate) 5# 6# Redistribution and use in source and binary forms, with or without 7# modification, are permitted provided that the following conditions 8# are met: 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 16# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 17# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 18# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 19# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 20# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 21# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 23# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 24# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 25# SUCH DAMAGE. 26 27. $(atf_get_srcdir)/utils.subr 28 29common_dir=$(atf_get_srcdir)/../common 30 31atf_test_case "malformed" "cleanup" 32malformed_head() 33{ 34 atf_set descr 'Test that we do not log malformed packets as passing' 35 atf_set require.user root 36 atf_set require.progs scapy 37} 38 39malformed_body() 40{ 41 pflog_init 42 43 epair=$(vnet_mkepair) 44 45 vnet_mkjail srv ${epair}b 46 jexec srv ifconfig ${epair}b 192.0.2.1/24 up 47 48 vnet_mkjail cl ${epair}a 49 jexec cl ifconfig ${epair}a 192.0.2.2/24 up 50 51 jexec cl pfctl -e 52 jexec cl ifconfig pflog0 up 53 pft_set_rules cl \ 54 "pass log keep state" 55 56 # Not required, but the 'pf: dropping packet with ip options' kernel log can 57 # help when debugging the test. 58 jexec cl pfctl -x loud 59 60 jexec cl tcpdump -n -e -ttt --immediate-mode -l -U -i pflog0 >> pflog.txt & 61 sleep 1 # Wait for tcpdump to start 62 63 # Sanity check 64 atf_check -s exit:0 -o ignore \ 65 jexec srv ping -c 1 192.0.2.2 66 67 jexec srv ${common_dir}/pft_ping.py \ 68 --sendif ${epair}b \ 69 --to 192.0.2.2 \ 70 --send-nop \ 71 --recvif ${epair}b 72 73 atf_check -o match:".*rule 0/8\(ip-option\): block in on ${epair}a: 192.0.2.1 > 192.0.2.2: ICMP echo request.*" \ 74 cat pflog.txt 75} 76 77malformed_cleanup() 78{ 79 pft_cleanup 80} 81 82atf_init_test_cases() 83{ 84 atf_add_test_case "malformed" 85} 86