# # SPDX-License-Identifier: BSD-2-Clause # # Copyright (c) 2018 Kristof Provost # # 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 "enable_disable" "cleanup" enable_disable_head() { atf_set descr 'Test enable/disable' atf_set require.user root } enable_disable_body() { pft_init j="pass_block:enable_disable" vnet_mkjail ${j} # Disable when disabled fails atf_check -s exit:1 -e ignore \ jexec ${j} pfctl -d # Enable succeeds atf_check -s exit:0 -e ignore \ jexec ${j} pfctl -e # Enable when enabled fails atf_check -s exit:1 -e ignore \ jexec ${j} pfctl -e # Disable succeeds atf_check -s exit:0 -e ignore \ jexec ${j} pfctl -d } enable_disable_cleanup() { pft_cleanup } atf_test_case "v4" "cleanup" v4_head() { atf_set descr 'Basic pass/block test for IPv4' atf_set require.user root } v4_body() { pft_init epair=$(vnet_mkepair) ifconfig ${epair}a 192.0.2.1/24 up # Set up a simple jail with one interface vnet_mkjail alcatraz ${epair}b jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up # Trivial ping to the jail, without pf atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2 # pf without policy will let us ping jexec alcatraz pfctl -e atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2 # Block everything pft_set_rules alcatraz "block in" atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.2 # Block everything but ICMP pft_set_rules alcatraz "block in" "pass in proto icmp" atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2 } v4_cleanup() { pft_cleanup } atf_test_case "v6" "cleanup" v6_head() { atf_set descr 'Basic pass/block test for IPv6' atf_set require.user root } v6_body() { pft_init epair=$(vnet_mkepair) ifconfig ${epair}a inet6 2001:db8:42::1/64 up no_dad # Set up a simple jail with one interface vnet_mkjail alcatraz ${epair}b jexec alcatraz ifconfig ${epair}b inet6 2001:db8:42::2/64 up no_dad # Trivial ping to the jail, without pf atf_check -s exit:0 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2 # pf without policy will let us ping jexec alcatraz pfctl -e atf_check -s exit:0 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2 # Block everything pft_set_rules alcatraz "block in" atf_check -s exit:2 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2 # Block everything but ICMP pft_set_rules alcatraz "block in" "pass in proto icmp6" atf_check -s exit:0 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2 # Allowing ICMPv4 does not allow ICMPv6 pft_set_rules alcatraz "block in" "pass in proto icmp" atf_check -s exit:2 -o ignore ping -6 -c 1 -W 1 2001:db8:42::2 } v6_cleanup() { pft_cleanup } atf_test_case "noalias" "cleanup" noalias_head() { atf_set descr 'Test the :0 noalias option' atf_set require.user root } noalias_body() { pft_init epair=$(vnet_mkepair) ifconfig ${epair}a inet6 2001:db8:42::1/64 up no_dad vnet_mkjail alcatraz ${epair}b jexec alcatraz ifconfig ${epair}b inet6 2001:db8:42::2/64 up no_dad linklocaladdr=$(jexec alcatraz ifconfig ${epair}b inet6 \ | grep %${epair}b \ | awk '{ print $2; }' \ | cut -d % -f 1) # Sanity check atf_check -s exit:0 -o ignore ping -6 -c 3 -W 1 2001:db8:42::2 atf_check -s exit:0 -o ignore ping -6 -c 3 -W 1 ${linklocaladdr}%${epair}a jexec alcatraz pfctl -e pft_set_rules alcatraz "block out inet6 from (${epair}b:0) to any" atf_check -s exit:2 -o ignore ping -6 -c 3 -W 1 2001:db8:42::2 # We should still be able to ping the link-local address atf_check -s exit:0 -o ignore ping -6 -c 3 -W 1 ${linklocaladdr}%${epair}a pft_set_rules alcatraz "block out inet6 from (${epair}b) to any" # We cannot ping to the link-local address atf_check -s exit:2 -o ignore ping -6 -c 3 -W 1 ${linklocaladdr}%${epair}a } noalias_cleanup() { pft_cleanup } atf_test_case "nested_inline" "cleanup" nested_inline_head() { atf_set descr "Test nested inline anchors, PR196314" atf_set require.user root } nested_inline_body() { pft_init epair=$(vnet_mkepair) ifconfig ${epair}a inet 192.0.2.1/24 up vnet_mkjail alcatraz ${epair}b jexec alcatraz ifconfig ${epair}b 192.0.2.2/24 up jexec alcatraz pfctl -e pft_set_rules alcatraz \ "block in" \ "anchor \"an1\" {" \ "pass in quick proto tcp to port time" \ "anchor \"an2\" {" \ "pass in quick proto icmp" \ "}" \ "}" atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.2 } nested_inline_cleanup() { pft_cleanup } atf_test_case "urpf" "cleanup" urpf_head() { atf_set descr "Test unicast reverse path forwarding check" atf_set require.user root atf_set require.progs scapy } urpf_body() { pft_init epair_one=$(vnet_mkepair) epair_two=$(vnet_mkepair) vnet_mkjail alcatraz ${epair_one}b ${epair_two}b ifconfig ${epair_one}a 192.0.2.2/24 up ifconfig ${epair_two}a 198.51.100.2/24 up jexec alcatraz ifconfig ${epair_one}b 192.0.2.1/24 up jexec alcatraz ifconfig ${epair_two}b 198.51.100.1/24 up jexec alcatraz sysctl net.inet.ip.forwarding=1 # Sanity checks atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.1 atf_check -s exit:0 -o ignore ping -c 1 -t 1 198.51.100.1 atf_check -s exit:0 ${common_dir}/pft_ping.py \ --sendif ${epair_one}a \ --to 192.0.2.1 \ --fromaddr 198.51.100.2 \ --replyif ${epair_two}a atf_check -s exit:0 ${common_dir}/pft_ping.py \ --sendif ${epair_two}a \ --to 198.51.100.1 \ --fromaddr 192.0.2.2 \ --replyif ${epair_one}a pft_set_rules alcatraz \ "block quick from urpf-failed" \ "set skip on lo" jexec alcatraz pfctl -e # Correct source still works atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.1 atf_check -s exit:0 -o ignore ping -c 1 -t 1 198.51.100.1 # Unexpected source interface is blocked atf_check -s exit:1 ${common_dir}/pft_ping.py \ --sendif ${epair_one}a \ --to 192.0.2.1 \ --fromaddr 198.51.100.2 \ --replyif ${epair_two}a atf_check -s exit:1 ${common_dir}/pft_ping.py \ --sendif ${epair_two}a \ --to 198.51.100.1 \ --fromaddr 192.0.2.2 \ --replyif ${epair_one}a } urpf_cleanup() { pft_cleanup } atf_init_test_cases() { atf_add_test_case "enable_disable" atf_add_test_case "v4" atf_add_test_case "v6" atf_add_test_case "noalias" atf_add_test_case "nested_inline" atf_add_test_case "urpf" }