1# 2# SPDX-License-Identifier: BSD-2-Clause 3# 4# Copyright (c) 2017 Kristof Provost <kp@FreeBSD.org> 5# 6# Copyright (c) 2021 Samuel Robinette 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28 29. $(atf_get_srcdir)/utils.subr 30 31common_dir=$(atf_get_srcdir)/../common 32 33atf_test_case "v4" "cleanup" 34v4_head() 35{ 36 atf_set descr 'set-tos test' 37 atf_set require.user root 38 39 # We need scapy to be installed for out test scripts to work 40 atf_set require.progs scapy 41} 42 43v4_body() 44{ 45 pft_init 46 47 epair_send=$(vnet_mkepair) 48 ifconfig ${epair_send}a 192.0.2.1/24 up 49 50 epair_recv=$(vnet_mkepair) 51 ifconfig ${epair_recv}a up 52 53 vnet_mkjail alcatraz ${epair_send}b ${epair_recv}b 54 jexec alcatraz ifconfig ${epair_send}b 192.0.2.2/24 up 55 jexec alcatraz ifconfig ${epair_recv}b 198.51.100.2/24 up 56 jexec alcatraz sysctl net.inet.ip.forwarding=1 57 jexec alcatraz arp -s 198.51.100.3 00:01:02:03:04:05 58 route add -net 198.51.100.0/24 192.0.2.2 59 60 jexec alcatraz pfctl -e 61 62 # No change is done if not requested 63 pft_set_rules alcatraz "scrub out proto icmp" 64 atf_check -s exit:1 -o ignore ${common_dir}/pft_ping.py \ 65 --sendif ${epair_send}a \ 66 --to 198.51.100.3 \ 67 --recvif ${epair_recv}a \ 68 --expect-tc 42 69 70 # The requested ToS is set 71 pft_set_rules alcatraz "scrub out proto icmp set-tos 42" 72 atf_check -s exit:0 ${common_dir}/pft_ping.py \ 73 --sendif ${epair_send}a \ 74 --to 198.51.100.3 \ 75 --recvif ${epair_recv}a \ 76 --expect-tc 42 77 78 # ToS is not changed if the scrub rule does not match 79 pft_set_rules alcatraz "scrub out proto tcp set-tos 42" 80 atf_check -s exit:1 -o ignore ${common_dir}/pft_ping.py \ 81 --sendif ${epair_send}a \ 82 --to 198.51.100.3 \ 83 --recvif ${epair_recv}a \ 84 --expect-tc 42 85 86 # Multiple scrub rules match as expected 87 pft_set_rules alcatraz "scrub out proto tcp set-tos 13" \ 88 "scrub out proto icmp set-tos 14" 89 atf_check -s exit:0 ${common_dir}/pft_ping.py \ 90 --sendif ${epair_send}a \ 91 --to 198.51.100.3 \ 92 --recvif ${epair_recv}a \ 93 --expect-tc 14 94 95 # And this works even if the packet already has ToS values set 96 atf_check -s exit:0 ${common_dir}/pft_ping.py \ 97 --sendif ${epair_send}a \ 98 --to 198.51.100.3 \ 99 --recvif ${epair_recv}a \ 100 --send-tc 42 \ 101 --expect-tc 14 102 103 # ToS values are unmolested if the packets do not match a scrub rule 104 pft_set_rules alcatraz "scrub out proto tcp set-tos 13" 105 atf_check -s exit:0 ${common_dir}/pft_ping.py \ 106 --sendif ${epair_send}a \ 107 --to 198.51.100.3 \ 108 --recvif ${epair_recv}a \ 109 --send-tc 42 \ 110 --expect-tc 42 111} 112 113v4_cleanup() 114{ 115 pft_cleanup 116} 117 118atf_test_case "v6" "cleanup" 119v6_head() 120{ 121 atf_set descr 'set-tos6 test' 122 atf_set require.user root 123 124 # We need scapy to be installed for out test scripts to work 125 atf_set require.progs scapy 126} 127 128v6_body() 129{ 130 pft_init 131 132 if [ "$(atf_config_get ci false)" = "true" ]; then 133 atf_skip "https://bugs.freebsd.org/260459" 134 fi 135 136 epair=$(vnet_mkepair) 137 ifconfig ${epair}a inet6 add 2001:db8:192::1 138 vnet_mkjail alcatraz ${epair}b 139 jexec alcatraz ifconfig ${epair}b inet6 add 2001:db8:192::2 140 141 route -6 add 2001:db8:192::2 2001:db8:192::1 142 jexec alcatraz route -6 add 2001:db8:192::1 2001:db8:192::2 143 144 jexec alcatraz pfctl -e 145 146 # No change is done if not requested 147 pft_set_rules alcatraz "scrub out proto ipv6-icmp" 148 atf_check -s exit:1 -o ignore -e ignore ${common_dir}/pft_ping.py \ 149 --sendif ${epair}a \ 150 --to 2001:db8:192::2 \ 151 --replyif ${epair}a \ 152 --expect-tc 42 153 154 # The requested ToS is set 155 pft_set_rules alcatraz "scrub out proto ipv6-icmp set-tos 42" 156 atf_check -s exit:0 -o ignore -e ignore ${common_dir}/pft_ping.py \ 157 --sendif ${epair}a \ 158 --to 2001:db8:192::2 \ 159 --replyif ${epair}a \ 160 --expect-tc 42 161 162 # ToS is not changed if the scrub rule does not match 163 pft_set_rules alcatraz "scrub out from 2001:db8:192::3 set-tos 42" 164 atf_check -s exit:1 -o ignore -e ignore ${common_dir}/pft_ping.py \ 165 --sendif ${epair}a \ 166 --to 2001:db8:192::2 \ 167 --replyif ${epair}a \ 168 --expect-tc 42 169 170 # Multiple scrub rules match as expected 171 pft_set_rules alcatraz "scrub out from 2001:db8:192::3 set-tos 13" \ 172 "scrub out proto ipv6-icmp set-tos 14" 173 atf_check -s exit:0 -o ignore -e ignore ${common_dir}/pft_ping.py \ 174 --sendif ${epair}a \ 175 --to 2001:db8:192::2 \ 176 --replyif ${epair}a \ 177 --expect-tc 14 178 179 # And this works even if the packet already has ToS values set 180 atf_check -s exit:0 -o ignore -e ignore ${common_dir}/pft_ping.py \ 181 --sendif ${epair}a \ 182 --to 2001:db8:192::2 \ 183 --replyif ${epair}a \ 184 --send-tc 42 \ 185 --expect-tc 14 186 187 # ToS values are unmolested if the packets do not match a scrub rule 188 pft_set_rules alcatraz "scrub out from 2001:db8:192::3 set-tos 13" 189 atf_check -s exit:0 -o ignore -e ignore ${common_dir}/pft_ping.py \ 190 --sendif ${epair}a \ 191 --to 2001:db8:192::2 \ 192 --replyif ${epair}a \ 193 --expect-tc 0 194} 195 196v6_cleanup() 197{ 198 pft_cleanup 199} 200 201atf_init_test_cases() 202{ 203 atf_add_test_case "v4" 204 atf_add_test_case "v6" 205} 206