1# 2# SPDX-License-Identifier: BSD-2-Clause 3# 4# Copyright (c) 2024 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 "zero_id" "cleanup" 32zero_id_head() 33{ 34 atf_set descr 'Test ICMPv6 echo with ID 0 keep being blocked' 35 atf_set require.user root 36 atf_set require.progs scapy 37} 38 39zero_id_body() 40{ 41 pft_init 42 43 epair=$(vnet_mkepair) 44 ifconfig ${epair}a inet6 2001:db8::2/64 up no_dad 45 46 vnet_mkjail alcatraz ${epair}b 47 jexec alcatraz ifconfig ${epair}b inet6 2001:db8::1/64 up no_dad 48 49 # Sanity check 50 atf_check -s exit:0 -o ignore \ 51 ping -c 1 2001:db8::1 52 53 jexec alcatraz pfctl -e 54 pft_set_rules alcatraz \ 55 "set block-policy drop" \ 56 "antispoof quick for { egress ${epair}b }" \ 57 "block all" \ 58 "pass out" \ 59 "pass in quick inet6 proto IPV6-ICMP icmp6-type 135" \ 60 "pass in quick inet6 proto IPV6-ICMP icmp6-type 136" \ 61 "pass out quick inet6 proto IPV6 from self to any" 62 63 # Now we can't ping 64 atf_check -s exit:2 -o ignore \ 65 ping -c 1 2001:db8::1 66 67 # Force neighbour discovery 68 ndp -d 2001:db8::1 69 70 # Verify that we don't confuse echo request with ID 0 for neighbour discovery 71 atf_check -s exit:1 -o ignore \ 72 ${common_dir}/pft_ping.py \ 73 --sendif ${epair}a \ 74 --to 2001:db8::1 \ 75 --replyif ${epair}a 76 77 jexec alcatraz pfctl -ss -vv 78 jexec alcatraz pfctl -sr -vv 79} 80 81zero_id_cleanup() 82{ 83 pft_cleanup 84} 85 86atf_test_case "ttl_exceeded" "cleanup" 87ttl_exceeded_head() 88{ 89 atf_set descr 'Test that we correctly translate TTL exceeded back' 90 atf_set require.user root 91} 92 93ttl_exceeded_body() 94{ 95 pft_init 96 97 epair_srv=$(vnet_mkepair) 98 epair_int=$(vnet_mkepair) 99 epair_cl=$(vnet_mkepair) 100 101 vnet_mkjail srv ${epair_srv}a 102 jexec srv ifconfig ${epair_srv}a inet6 2001:db8:1::1/64 no_dad up 103 jexec srv route add -6 default 2001:db8:1::2 104 105 vnet_mkjail int ${epair_srv}b ${epair_int}a 106 jexec int sysctl net.inet6.ip6.forwarding=1 107 jexec int ifconfig ${epair_srv}b inet6 2001:db8:1::2/64 no_dad up 108 jexec int ifconfig ${epair_int}a inet6 2001:db8:2::2/64 no_dad up 109 110 vnet_mkjail nat ${epair_int}b ${epair_cl}b 111 jexec nat ifconfig ${epair_int}b inet6 2001:db8:2::1 no_dad up 112 jexec nat ifconfig ${epair_cl}b inet6 2001:db8:3::2/64 no_dad up 113 jexec nat sysctl net.inet6.ip6.forwarding=1 114 jexec nat route add -6 default 2001:db8:2::2 115 116 vnet_mkjail cl ${epair_cl}a 117 jexec cl ifconfig ${epair_cl}a inet6 2001:db8:3::1/64 no_dad up 118 jexec cl route add -6 default 2001:db8:3::2 119 120 jexec nat pfctl -e 121 pft_set_rules nat \ 122 "nat on ${epair_int}b from 2001:db8:3::/64 -> (${epair_int}b:0)" \ 123 "block" \ 124 "pass inet6 proto udp" \ 125 "pass inet6 proto icmp6 icmp6-type { neighbrsol, neighbradv, echoreq }" 126 127 # Sanity checks 128 atf_check -s exit:0 -o ignore \ 129 jexec cl ping -c 1 2001:db8:3::2 130 atf_check -s exit:0 -o ignore \ 131 jexec cl ping -c 1 2001:db8:2::1 132 atf_check -s exit:0 -o ignore \ 133 jexec cl ping -c 1 2001:db8:2::2 134 atf_check -s exit:0 -o ignore \ 135 jexec cl ping -c 1 2001:db8:1::1 136 137 echo "UDP" 138 atf_check -s exit:0 -e ignore -o match:".*2001:db8:2::2.*" \ 139 jexec cl traceroute6 2001:db8:1::1 140 jexec nat pfctl -Fs 141 142 echo "ICMP" 143 atf_check -s exit:0 -e ignore -o match:".*2001:db8:2::2.*" \ 144 jexec cl traceroute6 -I 2001:db8:1::1 145} 146 147ttl_exceeded_cleanup() 148{ 149 pft_cleanup 150} 151 152atf_test_case "repeat" "cleanup" 153repeat_head() 154{ 155 atf_set descr 'Ensure that repeated NDs work' 156 atf_set require.user root 157 atf_set require.progs ndisc6 158} 159 160repeat_body() 161{ 162 pft_init 163 164 epair=$(vnet_mkepair) 165 ifconfig ${epair}a inet6 2001:db8::2/64 up no_dad 166 167 vnet_mkjail alcatraz ${epair}b 168 jexec alcatraz ifconfig ${epair}b inet6 2001:db8::1/64 up no_dad 169 170 # Sanity check 171 atf_check -s exit:0 -o ignore \ 172 ping -c 1 2001:db8::1 173 174 jexec alcatraz pfctl -e 175 pft_set_rules alcatraz \ 176 "block all" \ 177 "pass quick inet6 proto ipv6-icmp all icmp6-type neighbrsol keep state (if-bound) ridentifier 1000000107" 178 179 jexec alcatraz pfctl -x loud 180 ndisc6 -m -n -r 1 2001:db8::1 ${epair}a 181 jexec alcatraz pfctl -ss -vv 182 183 atf_check -s exit:0 -o ignore \ 184 ndisc6 -m -n -r 1 2001:db8::1 ${epair}a 185 jexec alcatraz pfctl -ss -vv 186 atf_check -s exit:0 -o ignore \ 187 ndisc6 -m -n -r 1 2001:db8::1 ${epair}a 188 jexec alcatraz pfctl -ss -vv 189 atf_check -s exit:0 -o ignore \ 190 ndisc6 -m -n -r 1 2001:db8::1 ${epair}a 191 jexec alcatraz pfctl -ss -vv 192} 193 194repeat_cleanup() 195{ 196 pft_cleanup 197} 198 199atf_init_test_cases() 200{ 201 atf_add_test_case "zero_id" 202 atf_add_test_case "ttl_exceeded" 203 atf_add_test_case "repeat" 204} 205