1# $FreeBSD$ 2# 3# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 4# 5# Copyright (c) 2017 Kristof Provost <kp@FreeBSD.org> 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27 28. $(atf_get_srcdir)/utils.subr 29 30common_dir=$(atf_get_srcdir)/../common 31 32atf_test_case "v4" "cleanup" 33v4_head() 34{ 35 atf_set descr 'set-tos test' 36 atf_set require.user root 37 38 # We need scapy to be installed for out test scripts to work 39 atf_set require.progs scapy 40} 41 42v4_body() 43{ 44 if [ `uname -p` = "i386" ]; then 45 atf_skip "https://bugs.freebsd.org/239380" 46 fi 47 48 pft_init 49 50 epair_send=$(vnet_mkepair) 51 ifconfig ${epair_send}a 192.0.2.1/24 up 52 53 epair_recv=$(vnet_mkepair) 54 ifconfig ${epair_recv}a up 55 56 vnet_mkjail alcatraz ${epair_send}b ${epair_recv}b 57 jexec alcatraz ifconfig ${epair_send}b 192.0.2.2/24 up 58 jexec alcatraz ifconfig ${epair_recv}b 198.51.100.2/24 up 59 jexec alcatraz sysctl net.inet.ip.forwarding=1 60 jexec alcatraz arp -s 198.51.100.3 00:01:02:03:04:05 61 route add -net 198.51.100.0/24 192.0.2.2 62 63 jexec alcatraz pfctl -e 64 65 # No change is done if not requested 66 pft_set_rules alcatraz "scrub out proto icmp" 67 atf_check -s exit:1 -o ignore ${common_dir}/pft_ping.py \ 68 --sendif ${epair_send}a \ 69 --to 198.51.100.3 \ 70 --recvif ${epair_recv}a \ 71 --expect-tos 42 72 73 # The requested ToS is set 74 pft_set_rules alcatraz "scrub out proto icmp set-tos 42" 75 atf_check -s exit:0 ${common_dir}/pft_ping.py \ 76 --sendif ${epair_send}a \ 77 --to 198.51.100.3 \ 78 --recvif ${epair_recv}a \ 79 --expect-tos 42 80 81 # ToS is not changed if the scrub rule does not match 82 pft_set_rules alcatraz "scrub out proto tcp set-tos 42" 83 atf_check -s exit:1 -o ignore ${common_dir}/pft_ping.py \ 84 --sendif ${epair_send}a \ 85 --to 198.51.100.3 \ 86 --recvif ${epair_recv}a \ 87 --expect-tos 42 88 89 # Multiple scrub rules match as expected 90 pft_set_rules alcatraz "scrub out proto tcp set-tos 13" \ 91 "scrub out proto icmp set-tos 14" 92 atf_check -s exit:0 ${common_dir}/pft_ping.py \ 93 --sendif ${epair_send}a \ 94 --to 198.51.100.3 \ 95 --recvif ${epair_recv}a \ 96 --expect-tos 14 97 98 # And this works even if the packet already has ToS values set 99 atf_check -s exit:0 ${common_dir}/pft_ping.py \ 100 --sendif ${epair_send}a \ 101 --to 198.51.100.3 \ 102 --recvif ${epair_recv}a \ 103 --send-tos 42 \ 104 --expect-tos 14 105 106 # ToS values are unmolested if the packets do not match a scrub rule 107 pft_set_rules alcatraz "scrub out proto tcp set-tos 13" 108 atf_check -s exit:0 ${common_dir}/pft_ping.py \ 109 --sendif ${epair_send}a \ 110 --to 198.51.100.3 \ 111 --recvif ${epair_recv}a \ 112 --send-tos 42 \ 113 --expect-tos 42 114} 115 116v4_cleanup() 117{ 118 pft_cleanup 119} 120 121atf_init_test_cases() 122{ 123 atf_add_test_case "v4" 124} 125