# # SPDX-License-Identifier: BSD-2-Clause # # Copyright (c) 2017 Kristof Provost # # Copyright (c) 2021 Samuel Robinette # # 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 "v4" "cleanup" v4_head() { atf_set descr 'set-tos test' atf_set require.user root # We need scapy to be installed for out test scripts to work atf_set require.progs scapy } v4_body() { pft_init epair_send=$(vnet_mkepair) ifconfig ${epair_send}a 192.0.2.1/24 up epair_recv=$(vnet_mkepair) ifconfig ${epair_recv}a up vnet_mkjail alcatraz ${epair_send}b ${epair_recv}b jexec alcatraz ifconfig ${epair_send}b 192.0.2.2/24 up jexec alcatraz ifconfig ${epair_recv}b 198.51.100.2/24 up jexec alcatraz sysctl net.inet.ip.forwarding=1 jexec alcatraz arp -s 198.51.100.3 00:01:02:03:04:05 route add -net 198.51.100.0/24 192.0.2.2 jexec alcatraz pfctl -e # No change is done if not requested pft_set_rules alcatraz "scrub out proto icmp" atf_check -s exit:1 -o ignore ${common_dir}/pft_ping.py \ --sendif ${epair_send}a \ --to 198.51.100.3 \ --recvif ${epair_recv}a \ --expect-tc 42 # The requested ToS is set pft_set_rules alcatraz "scrub out proto icmp set-tos 42" atf_check -s exit:0 ${common_dir}/pft_ping.py \ --sendif ${epair_send}a \ --to 198.51.100.3 \ --recvif ${epair_recv}a \ --expect-tc 42 # ToS is not changed if the scrub rule does not match pft_set_rules alcatraz "scrub out proto tcp set-tos 42" atf_check -s exit:1 -o ignore ${common_dir}/pft_ping.py \ --sendif ${epair_send}a \ --to 198.51.100.3 \ --recvif ${epair_recv}a \ --expect-tc 42 # Multiple scrub rules match as expected pft_set_rules alcatraz "scrub out proto tcp set-tos 13" \ "scrub out proto icmp set-tos 14" atf_check -s exit:0 ${common_dir}/pft_ping.py \ --sendif ${epair_send}a \ --to 198.51.100.3 \ --recvif ${epair_recv}a \ --expect-tc 14 # And this works even if the packet already has ToS values set atf_check -s exit:0 ${common_dir}/pft_ping.py \ --sendif ${epair_send}a \ --to 198.51.100.3 \ --recvif ${epair_recv}a \ --send-tc 42 \ --expect-tc 14 # ToS values are unmolested if the packets do not match a scrub rule pft_set_rules alcatraz "scrub out proto tcp set-tos 13" atf_check -s exit:0 ${common_dir}/pft_ping.py \ --sendif ${epair_send}a \ --to 198.51.100.3 \ --recvif ${epair_recv}a \ --send-tc 42 \ --expect-tc 42 } v4_cleanup() { pft_cleanup } atf_test_case "v6" "cleanup" v6_head() { atf_set descr 'set-tos6 test' atf_set require.user root # We need scapy to be installed for out test scripts to work atf_set require.progs scapy } v6_body() { pft_init if [ "$(atf_config_get ci false)" = "true" ]; then atf_skip "https://bugs.freebsd.org/260459" fi epair=$(vnet_mkepair) ifconfig ${epair}a inet6 add 2001:db8:192::1 vnet_mkjail alcatraz ${epair}b jexec alcatraz ifconfig ${epair}b inet6 add 2001:db8:192::2 route -6 add 2001:db8:192::2 2001:db8:192::1 jexec alcatraz route -6 add 2001:db8:192::1 2001:db8:192::2 jexec alcatraz pfctl -e # No change is done if not requested pft_set_rules alcatraz "scrub out proto ipv6-icmp" atf_check -s exit:1 -o ignore -e ignore ${common_dir}/pft_ping.py \ --sendif ${epair}a \ --to 2001:db8:192::2 \ --replyif ${epair}a \ --expect-tc 42 # The requested ToS is set pft_set_rules alcatraz "scrub out proto ipv6-icmp set-tos 42" atf_check -s exit:0 -o ignore -e ignore ${common_dir}/pft_ping.py \ --sendif ${epair}a \ --to 2001:db8:192::2 \ --replyif ${epair}a \ --expect-tc 42 # ToS is not changed if the scrub rule does not match pft_set_rules alcatraz "scrub out from 2001:db8:192::3 set-tos 42" atf_check -s exit:1 -o ignore -e ignore ${common_dir}/pft_ping.py \ --sendif ${epair}a \ --to 2001:db8:192::2 \ --replyif ${epair}a \ --expect-tc 42 # Multiple scrub rules match as expected pft_set_rules alcatraz "scrub out from 2001:db8:192::3 set-tos 13" \ "scrub out proto ipv6-icmp set-tos 14" atf_check -s exit:0 -o ignore -e ignore ${common_dir}/pft_ping.py \ --sendif ${epair}a \ --to 2001:db8:192::2 \ --replyif ${epair}a \ --expect-tc 14 # And this works even if the packet already has ToS values set atf_check -s exit:0 -o ignore -e ignore ${common_dir}/pft_ping.py \ --sendif ${epair}a \ --to 2001:db8:192::2 \ --replyif ${epair}a \ --send-tc 42 \ --expect-tc 14 # ToS values are unmolested if the packets do not match a scrub rule pft_set_rules alcatraz "scrub out from 2001:db8:192::3 set-tos 13" atf_check -s exit:0 -o ignore -e ignore ${common_dir}/pft_ping.py \ --sendif ${epair}a \ --to 2001:db8:192::2 \ --replyif ${epair}a \ --expect-tc 0 } v6_cleanup() { pft_cleanup } atf_init_test_cases() { atf_add_test_case "v4" atf_add_test_case "v6" }