1# 2# SPDX-License-Identifier: BSD-2-Clause 3# 4# Copyright (c) 2018 Kristof Provost <kp@FreeBSD.org> 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 "v4" "cleanup" 32v4_head() 33{ 34 atf_set descr 'Basic route-to test' 35 atf_set require.user root 36} 37 38v4_body() 39{ 40 pft_init 41 42 epair_send=$(vnet_mkepair) 43 ifconfig ${epair_send}a 192.0.2.1/24 up 44 epair_route=$(vnet_mkepair) 45 ifconfig ${epair_route}a 203.0.113.1/24 up 46 47 vnet_mkjail alcatraz ${epair_send}b ${epair_route}b 48 jexec alcatraz ifconfig ${epair_send}b 192.0.2.2/24 up 49 jexec alcatraz ifconfig ${epair_route}b 203.0.113.2/24 up 50 jexec alcatraz route add -net 198.51.100.0/24 192.0.2.1 51 jexec alcatraz pfctl -e 52 53 # Attempt to provoke PR 228782 54 pft_set_rules alcatraz "block all" "pass user 2" \ 55 "pass out route-to (${epair_route}b 203.0.113.1) from 192.0.2.2 to 198.51.100.1 no state" 56 jexec alcatraz nc -w 3 -s 192.0.2.2 198.51.100.1 22 57 58 # atf wants us to not return an error, but our netcat will fail 59 true 60} 61 62v4_cleanup() 63{ 64 pft_cleanup 65} 66 67atf_test_case "v6" "cleanup" 68v6_head() 69{ 70 atf_set descr 'Basic route-to test (IPv6)' 71 atf_set require.user root 72} 73 74v6_body() 75{ 76 pft_init 77 78 epair_send=$(vnet_mkepair) 79 ifconfig ${epair_send}a inet6 2001:db8:42::1/64 up no_dad -ifdisabled 80 epair_route=$(vnet_mkepair) 81 ifconfig ${epair_route}a inet6 2001:db8:43::1/64 up no_dad -ifdisabled 82 83 vnet_mkjail alcatraz ${epair_send}b ${epair_route}b 84 jexec alcatraz ifconfig ${epair_send}b inet6 2001:db8:42::2/64 up no_dad 85 jexec alcatraz ifconfig ${epair_route}b inet6 2001:db8:43::2/64 up no_dad 86 jexec alcatraz route add -6 2001:db8:666::/64 2001:db8:42::2 87 jexec alcatraz pfctl -e 88 89 # Attempt to provoke PR 228782 90 pft_set_rules alcatraz "block all" "pass user 2" \ 91 "pass out route-to (${epair_route}b 2001:db8:43::1) from 2001:db8:42::2 to 2001:db8:666::1 no state" 92 jexec alcatraz nc -6 -w 3 -s 2001:db8:42::2 2001:db8:666::1 22 93 94 # atf wants us to not return an error, but our netcat will fail 95 true 96} 97 98v6_cleanup() 99{ 100 pft_cleanup 101} 102 103atf_test_case "multiwan" "cleanup" 104multiwan_head() 105{ 106 atf_set descr 'Multi-WAN redirection / reply-to test' 107 atf_set require.user root 108} 109 110multiwan_body() 111{ 112 pft_init 113 114 epair_one=$(vnet_mkepair) 115 epair_two=$(vnet_mkepair) 116 epair_cl_one=$(vnet_mkepair) 117 epair_cl_two=$(vnet_mkepair) 118 119 vnet_mkjail srv ${epair_one}b ${epair_two}b 120 vnet_mkjail wan_one ${epair_one}a ${epair_cl_one}b 121 vnet_mkjail wan_two ${epair_two}a ${epair_cl_two}b 122 vnet_mkjail client ${epair_cl_one}a ${epair_cl_two}a 123 124 jexec client ifconfig ${epair_cl_one}a 203.0.113.1/25 125 jexec wan_one ifconfig ${epair_cl_one}b 203.0.113.2/25 126 jexec wan_one ifconfig ${epair_one}a 192.0.2.1/24 up 127 jexec wan_one sysctl net.inet.ip.forwarding=1 128 jexec srv ifconfig ${epair_one}b 192.0.2.2/24 up 129 jexec client route add 192.0.2.0/24 203.0.113.2 130 131 jexec client ifconfig ${epair_cl_two}a 203.0.113.128/25 132 jexec wan_two ifconfig ${epair_cl_two}b 203.0.113.129/25 133 jexec wan_two ifconfig ${epair_two}a 198.51.100.1/24 up 134 jexec wan_two sysctl net.inet.ip.forwarding=1 135 jexec srv ifconfig ${epair_two}b 198.51.100.2/24 up 136 jexec client route add 198.51.100.0/24 203.0.113.129 137 138 jexec srv ifconfig lo0 127.0.0.1/8 up 139 jexec srv route add default 192.0.2.1 140 jexec srv sysctl net.inet.ip.forwarding=1 141 142 # Run echo server in srv jail 143 jexec srv /usr/sbin/inetd -p multiwan.pid $(atf_get_srcdir)/echo_inetd.conf 144 145 jexec srv pfctl -e 146 pft_set_rules srv \ 147 "nat on ${epair_one}b inet from 127.0.0.0/8 to any -> (${epair_one}b)" \ 148 "nat on ${epair_two}b inet from 127.0.0.0/8 to any -> (${epair_two}b)" \ 149 "rdr on ${epair_one}b inet proto tcp from any to 192.0.2.2 port 7 -> 127.0.0.1 port 7" \ 150 "rdr on ${epair_two}b inet proto tcp from any to 198.51.100.2 port 7 -> 127.0.0.1 port 7" \ 151 "block in" \ 152 "block out" \ 153 "pass in quick on ${epair_one}b reply-to (${epair_one}b 192.0.2.1) inet proto tcp from any to 127.0.0.1 port 7" \ 154 "pass in quick on ${epair_two}b reply-to (${epair_two}b 198.51.100.1) inet proto tcp from any to 127.0.0.1 port 7" 155 156 # These will always succeed, because we don't change interface to route 157 # correctly here. 158 result=$(echo "one" | jexec wan_one nc -N -w 3 192.0.2.2 7) 159 if [ "${result}" != "one" ]; then 160 atf_fail "Redirect on one failed" 161 fi 162 result=$(echo "two" | jexec wan_two nc -N -w 3 198.51.100.2 7) 163 if [ "${result}" != "two" ]; then 164 atf_fail "Redirect on two failed" 165 fi 166 167 result=$(echo "one" | jexec client nc -N -w 3 192.0.2.2 7) 168 if [ "${result}" != "one" ]; then 169 atf_fail "Redirect from client on one failed" 170 fi 171 172 # This should trigger the issue fixed in 829a69db855b48ff7e8242b95e193a0783c489d9 173 result=$(echo "two" | jexec client nc -N -w 3 198.51.100.2 7) 174 if [ "${result}" != "two" ]; then 175 atf_fail "Redirect from client on two failed" 176 fi 177} 178 179multiwan_cleanup() 180{ 181 rm -f multiwan.pid 182 pft_cleanup 183} 184 185atf_test_case "multiwanlocal" "cleanup" 186multiwanlocal_head() 187{ 188 atf_set descr 'Multi-WAN local origin source-based redirection / route-to test' 189 atf_set require.user root 190} 191 192multiwanlocal_body() 193{ 194 pft_init 195 196 epair_one=$(vnet_mkepair) 197 epair_two=$(vnet_mkepair) 198 epair_cl_one=$(vnet_mkepair) 199 epair_cl_two=$(vnet_mkepair) 200 201 vnet_mkjail srv1 ${epair_one}b 202 vnet_mkjail srv2 ${epair_two}b 203 vnet_mkjail wan_one ${epair_one}a ${epair_cl_one}b 204 vnet_mkjail wan_two ${epair_two}a ${epair_cl_two}b 205 vnet_mkjail client ${epair_cl_one}a ${epair_cl_two}a 206 207 jexec client ifconfig ${epair_cl_one}a 203.0.113.1/25 208 jexec wan_one ifconfig ${epair_cl_one}b 203.0.113.2/25 209 jexec wan_one ifconfig ${epair_one}a 192.0.2.1/24 up 210 jexec wan_one sysctl net.inet.ip.forwarding=1 211 jexec srv1 ifconfig ${epair_one}b 192.0.2.2/24 up 212 213 jexec client ifconfig ${epair_cl_two}a 203.0.113.128/25 214 jexec wan_two ifconfig ${epair_cl_two}b 203.0.113.129/25 215 jexec wan_two ifconfig ${epair_two}a 198.51.100.1/24 up 216 jexec wan_two sysctl net.inet.ip.forwarding=1 217 jexec srv2 ifconfig ${epair_two}b 198.51.100.2/24 up 218 219 jexec client route add default 203.0.113.2 220 jexec srv1 route add default 192.0.2.1 221 jexec srv2 route add default 198.51.100.1 222 223 # Run data source in srv1 and srv2 224 jexec srv1 sh -c 'dd if=/dev/zero bs=1024 count=100 | nc -l 7 -w 2 -N &' 225 jexec srv2 sh -c 'dd if=/dev/zero bs=1024 count=100 | nc -l 7 -w 2 -N &' 226 227 jexec client pfctl -e 228 pft_set_rules client \ 229 "block in" \ 230 "block out" \ 231 "pass out quick route-to (${epair_cl_two}a 203.0.113.129) inet proto tcp from 203.0.113.128 to any port 7" \ 232 "pass out on ${epair_cl_one}a inet proto tcp from any to any port 7" \ 233 "set skip on lo" 234 235 # This should work 236 result=$(jexec client nc -N -w 1 192.0.2.2 7 | wc -c) 237 if [ ${result} -ne 102400 ]; then 238 jexec client pfctl -ss 239 atf_fail "Redirect from client on one failed: ${result}" 240 fi 241 242 # This should trigger the issue 243 result=$(jexec client nc -N -w 1 -s 203.0.113.128 198.51.100.2 7 | wc -c) 244 jexec client pfctl -ss 245 if [ ${result} -ne 102400 ]; then 246 atf_fail "Redirect from client on two failed: ${result}" 247 fi 248} 249 250multiwanlocal_cleanup() 251{ 252 pft_cleanup 253} 254 255atf_test_case "icmp_nat" "cleanup" 256icmp_nat_head() 257{ 258 atf_set descr 'Test that ICMP packets are correct for route-to + NAT' 259 atf_set require.user root 260 atf_set require.progs scapy 261} 262 263icmp_nat_body() 264{ 265 pft_init 266 267 epair_one=$(vnet_mkepair) 268 epair_two=$(vnet_mkepair) 269 epair_three=$(vnet_mkepair) 270 271 vnet_mkjail gw ${epair_one}b ${epair_two}a ${epair_three}a 272 vnet_mkjail srv ${epair_two}b 273 vnet_mkjail srv2 ${epair_three}b 274 275 ifconfig ${epair_one}a 192.0.2.2/24 up 276 route add -net 198.51.100.0/24 192.0.2.1 277 jexec gw sysctl net.inet.ip.forwarding=1 278 jexec gw ifconfig ${epair_one}b 192.0.2.1/24 up 279 jexec gw ifconfig ${epair_two}a 198.51.100.1/24 up 280 jexec gw ifconfig ${epair_three}a 203.0.113.1/24 up mtu 500 281 jexec srv ifconfig ${epair_two}b 198.51.100.2/24 up 282 jexec srv route add default 198.51.100.1 283 jexec srv2 ifconfig ${epair_three}b 203.0.113.2/24 up mtu 500 284 jexec srv2 route add default 203.0.113.1 285 286 # Sanity check 287 atf_check -s exit:0 -o ignore ping -c 1 198.51.100.2 288 289 jexec gw pfctl -e 290 pft_set_rules gw \ 291 "nat on ${epair_two}a inet from 192.0.2.0/24 to any -> (${epair_two}a)" \ 292 "nat on ${epair_three}a inet from 192.0.2.0/24 to any -> (${epair_three}a)" \ 293 "pass out route-to (${epair_three}a 203.0.113.2) proto icmp icmp-type echoreq" 294 295 # Now ensure that we get an ICMP error with the correct IP addresses in it. 296 atf_check -s exit:0 ${common_dir}/pft_icmp_check.py \ 297 --to 198.51.100.2 \ 298 --fromaddr 192.0.2.2 \ 299 --recvif ${epair_one}a \ 300 --sendif ${epair_one}a 301 302 # ping reports the ICMP error, so check of that too. 303 atf_check -s exit:2 -o match:'frag needed and DF set' \ 304 ping -D -c 1 -s 1000 198.51.100.2 305} 306 307icmp_nat_cleanup() 308{ 309 pft_cleanup 310} 311 312atf_test_case "dummynet" "cleanup" 313dummynet_head() 314{ 315 atf_set descr 'Test that dummynet applies to route-to packets' 316 atf_set require.user root 317} 318 319dummynet_body() 320{ 321 dummynet_init 322 323 epair_srv=$(vnet_mkepair) 324 epair_gw=$(vnet_mkepair) 325 326 vnet_mkjail srv ${epair_srv}a 327 jexec srv ifconfig ${epair_srv}a 192.0.2.1/24 up 328 jexec srv route add default 192.0.2.2 329 330 vnet_mkjail gw ${epair_srv}b ${epair_gw}a 331 jexec gw ifconfig ${epair_srv}b 192.0.2.2/24 up 332 jexec gw ifconfig ${epair_gw}a 198.51.100.1/24 up 333 jexec gw sysctl net.inet.ip.forwarding=1 334 335 ifconfig ${epair_gw}b 198.51.100.2/24 up 336 route add -net 192.0.2.0/24 198.51.100.1 337 338 # Sanity check 339 atf_check -s exit:0 -o ignore ping -c 1 -t 1 192.0.2.1 340 341 jexec gw dnctl pipe 1 config delay 1200 342 pft_set_rules gw \ 343 "pass out route-to (${epair_srv}b 192.0.2.1) to 192.0.2.1 dnpipe 1" 344 jexec gw pfctl -e 345 346 # The ping request will pass, but take 1.2 seconds 347 # So this works: 348 atf_check -s exit:0 -o ignore ping -c 1 192.0.2.1 349 # But this times out: 350 atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.1 351 352 # return path dummynet 353 pft_set_rules gw \ 354 "pass out route-to (${epair_srv}b 192.0.2.1) to 192.0.2.1 dnpipe (0, 1)" 355 356 # The ping request will pass, but take 1.2 seconds 357 # So this works: 358 atf_check -s exit:0 -o ignore ping -c 1 192.0.2.1 359 # But this times out: 360 atf_check -s exit:2 -o ignore ping -c 1 -t 1 192.0.2.1 361} 362 363dummynet_cleanup() 364{ 365 pft_cleanup 366} 367 368atf_init_test_cases() 369{ 370 atf_add_test_case "v4" 371 atf_add_test_case "v6" 372 atf_add_test_case "multiwan" 373 atf_add_test_case "multiwanlocal" 374 atf_add_test_case "icmp_nat" 375 atf_add_test_case "dummynet" 376} 377