1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# 4# OVS kernel module self tests 5 6trap ovs_exit_sig EXIT TERM INT ERR 7 8# Kselftest framework requirement - SKIP code is 4. 9ksft_skip=4 10 11PAUSE_ON_FAIL=no 12VERBOSE=0 13TRACING=0 14WAIT_TIMEOUT=5 15 16if test "X$KSFT_MACHINE_SLOW" == "Xyes"; then 17 WAIT_TIMEOUT=10 18fi 19 20tests=" 21 arp_ping eth-arp: Basic arp ping between two NS 22 ct_connect_v4 ip4-ct-xon: Basic ipv4 tcp connection using ct 23 connect_v4 ip4-xon: Basic ipv4 ping between two NS 24 nat_connect_v4 ip4-nat-xon: Basic ipv4 tcp connection via NAT 25 nat_related_v4 ip4-nat-related: ICMP related matches work with SNAT 26 netlink_checks ovsnl: validate netlink attrs and settings 27 upcall_interfaces ovs: test the upcall interfaces 28 drop_reason drop: test drop reasons are emitted 29 psample psample: Sampling packets with psample" 30 31info() { 32 [ "${ovs_dir}" != "" ] && 33 echo "`date +"[%m-%d %H:%M:%S]"` $*" >> ${ovs_dir}/debug.log 34 [ $VERBOSE = 0 ] || echo $* 35} 36 37ovs_wait() { 38 info "waiting $WAIT_TIMEOUT s for: $@" 39 40 if "$@" ; then 41 info "wait succeeded immediately" 42 return 0 43 fi 44 45 # A quick re-check helps speed up small races in fast systems. 46 # However, fractional sleeps might not necessarily work. 47 local start=0 48 sleep 0.1 || { sleep 1; start=1; } 49 50 for (( i=start; i<WAIT_TIMEOUT; i++ )); do 51 if "$@" ; then 52 info "wait succeeded after $i seconds" 53 return 0 54 fi 55 sleep 1 56 done 57 info "wait failed after $i seconds" 58 return 1 59} 60 61ovs_base=`pwd` 62sbxs= 63sbx_add () { 64 info "adding sandbox '$1'" 65 66 sbxs="$sbxs $1" 67 68 NO_BIN=0 69 70 # Create sandbox. 71 local d="$ovs_base"/$1 72 if [ -e $d ]; then 73 info "removing $d" 74 rm -rf "$d" 75 fi 76 mkdir "$d" || return 1 77 ovs_setenv $1 78} 79 80ovs_exit_sig() { 81 [ -e ${ovs_dir}/cleanup ] && . "$ovs_dir/cleanup" 82} 83 84on_exit() { 85 echo "$1" > ${ovs_dir}/cleanup.tmp 86 cat ${ovs_dir}/cleanup >> ${ovs_dir}/cleanup.tmp 87 mv ${ovs_dir}/cleanup.tmp ${ovs_dir}/cleanup 88} 89 90ovs_setenv() { 91 sandbox=$1 92 93 ovs_dir=$ovs_base${1:+/$1}; export ovs_dir 94 95 test -e ${ovs_dir}/cleanup || : > ${ovs_dir}/cleanup 96} 97 98ovs_sbx() { 99 if test "X$2" != X; then 100 (ovs_setenv $1; shift; 101 info "run cmd: $@"; "$@" >> ${ovs_dir}/debug.log) 102 else 103 ovs_setenv $1 104 fi 105} 106 107ovs_add_dp () { 108 info "Adding DP/Bridge IF: sbx:$1 dp:$2 {$3, $4, $5}" 109 sbxname="$1" 110 shift 111 ovs_sbx "$sbxname" python3 $ovs_base/ovs-dpctl.py add-dp $* 112 on_exit "ovs_sbx $sbxname python3 $ovs_base/ovs-dpctl.py del-dp $1;" 113} 114 115ovs_add_if () { 116 info "Adding IF to DP: br:$2 if:$3" 117 if [ "$4" != "-u" ]; then 118 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if "$2" "$3" \ 119 || return 1 120 else 121 python3 $ovs_base/ovs-dpctl.py add-if \ 122 -u "$2" "$3" >$ovs_dir/$3.out 2>$ovs_dir/$3.err & 123 pid=$! 124 on_exit "ovs_sbx $1 kill -TERM $pid 2>/dev/null" 125 fi 126} 127 128ovs_del_if () { 129 info "Deleting IF from DP: br:$2 if:$3" 130 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-if "$2" "$3" || return 1 131} 132 133ovs_netns_spawn_daemon() { 134 sbx=$1 135 shift 136 netns=$1 137 shift 138 if [ "$netns" == "_default" ]; then 139 $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & 140 else 141 ip netns exec $netns $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & 142 fi 143 pid=$! 144 ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null" 145} 146 147ovs_spawn_daemon() { 148 sbx=$1 149 shift 150 ovs_netns_spawn_daemon $sbx "_default" $* 151} 152 153ovs_add_netns_and_veths () { 154 info "Adding netns attached: sbx:$1 dp:$2 {$3, $4, $5}" 155 ovs_sbx "$1" ip netns add "$3" || return 1 156 on_exit "ovs_sbx $1 ip netns del $3" 157 ovs_sbx "$1" ip link add "$4" type veth peer name "$5" || return 1 158 on_exit "ovs_sbx $1 ip link del $4 >/dev/null 2>&1" 159 ovs_sbx "$1" ip link set "$4" up || return 1 160 ovs_sbx "$1" ip link set "$5" netns "$3" || return 1 161 ovs_sbx "$1" ip netns exec "$3" ip link set "$5" up || return 1 162 163 if [ "$6" != "" ]; then 164 ovs_sbx "$1" ip netns exec "$3" ip addr add "$6" dev "$5" \ 165 || return 1 166 fi 167 168 if [ "$7" != "-u" ]; then 169 ovs_add_if "$1" "$2" "$4" || return 1 170 else 171 ovs_add_if "$1" "$2" "$4" -u || return 1 172 fi 173 174 if [ $TRACING -eq 1 ]; then 175 ovs_netns_spawn_daemon "$1" "$3" tcpdump -l -i any -s 6553 176 ovs_wait grep -q "listening on any" ${ovs_dir}/stderr 177 fi 178 179 return 0 180} 181 182ovs_add_flow () { 183 info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4" 184 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4" 185 if [ $? -ne 0 ]; then 186 info "Flow [ $3 : $4 ] failed" 187 return 1 188 fi 189 return 0 190} 191 192ovs_del_flows () { 193 info "Deleting all flows from DP: sbx:$1 br:$2" 194 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-flows "$2" 195 return 0 196} 197 198ovs_drop_record_and_run () { 199 local sbx=$1 200 shift 201 202 perf record -a -q -e skb:kfree_skb -o ${ovs_dir}/perf.data $* \ 203 >> ${ovs_dir}/stdout 2>> ${ovs_dir}/stderr 204 return $? 205} 206 207ovs_drop_reason_count() 208{ 209 local reason=$1 210 211 local perf_output=`perf script -i ${ovs_dir}/perf.data -F trace:event,trace` 212 local pattern="skb:kfree_skb:.*reason: $reason" 213 214 return `echo "$perf_output" | grep "$pattern" | wc -l` 215} 216 217ovs_test_flow_fails () { 218 ERR_MSG="Flow actions may not be safe on all matching packets" 219 220 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 221 ovs_add_flow $@ &> /dev/null $@ && return 1 222 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 223 224 if [ "$PRE_TEST" == "$POST_TEST" ]; then 225 return 1 226 fi 227 return 0 228} 229 230usage() { 231 echo 232 echo "$0 [OPTIONS] [TEST]..." 233 echo "If no TEST argument is given, all tests will be run." 234 echo 235 echo "Options" 236 echo " -t: capture traffic via tcpdump" 237 echo " -v: verbose" 238 echo " -p: pause on failure" 239 echo 240 echo "Available tests${tests}" 241 exit 1 242} 243 244 245# psample test 246# - use psample to observe packets 247test_psample() { 248 sbx_add "test_psample" || return $? 249 250 # Add a datapath with per-vport dispatching. 251 ovs_add_dp "test_psample" psample -V 2:1 || return 1 252 253 info "create namespaces" 254 ovs_add_netns_and_veths "test_psample" "psample" \ 255 client c0 c1 172.31.110.10/24 -u || return 1 256 ovs_add_netns_and_veths "test_psample" "psample" \ 257 server s0 s1 172.31.110.20/24 -u || return 1 258 259 # Check if psample actions can be configured. 260 ovs_add_flow "test_psample" psample \ 261 'in_port(1),eth(),eth_type(0x0806),arp()' 'psample(group=1)' &> /dev/null 262 if [ $? == 1 ]; then 263 info "no support for psample - skipping" 264 ovs_exit_sig 265 return $ksft_skip 266 fi 267 268 ovs_del_flows "test_psample" psample 269 270 # Test action verification. 271 OLDIFS=$IFS 272 IFS='*' 273 min_key='in_port(1),eth(),eth_type(0x0800),ipv4()' 274 for testcase in \ 275 "cookie to large"*"psample(group=1,cookie=1615141312111009080706050403020100)" \ 276 "no group with cookie"*"psample(cookie=abcd)" \ 277 "no group"*"psample()"; 278 do 279 set -- $testcase; 280 ovs_test_flow_fails "test_psample" psample $min_key $2 281 if [ $? == 1 ]; then 282 info "failed - $1" 283 return 1 284 fi 285 done 286 IFS=$OLDIFS 287 288 ovs_del_flows "test_psample" psample 289 # Allow ARP 290 ovs_add_flow "test_psample" psample \ 291 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 292 ovs_add_flow "test_psample" psample \ 293 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 294 295 # Sample first 14 bytes of all traffic. 296 ovs_add_flow "test_psample" psample \ 297 "in_port(1),eth(),eth_type(0x0800),ipv4()" \ 298 "trunc(14),psample(group=1,cookie=c0ffee),2" 299 300 # Sample all traffic. In this case, use a sample() action with both 301 # psample and an upcall emulating simultaneous local sampling and 302 # sFlow / IPFIX. 303 nlpid=$(grep -E "listening on upcall packet handler" \ 304 $ovs_dir/s0.out | cut -d ":" -f 2 | tr -d ' ') 305 306 ovs_add_flow "test_psample" psample \ 307 "in_port(2),eth(),eth_type(0x0800),ipv4()" \ 308 "sample(sample=100%,actions(psample(group=2,cookie=eeff0c),userspace(pid=${nlpid},userdata=eeff0c))),1" 309 310 # Record psample data. 311 ovs_spawn_daemon "test_psample" python3 $ovs_base/ovs-dpctl.py psample-events 312 ovs_wait grep -q "listening for psample events" ${ovs_dir}/stdout 313 314 # Send a single ping. 315 ovs_sbx "test_psample" ip netns exec client ping -I c1 172.31.110.20 -c 1 || return 1 316 317 # We should have received one userspace action upcall and 2 psample packets. 318 ovs_wait grep -q "userspace action command" $ovs_dir/s0.out || return 1 319 320 # client -> server samples should only contain the first 14 bytes of the packet. 321 ovs_wait grep -qE "rate:4294967295,group:1,cookie:c0ffee data:[0-9a-f]{28}$" \ 322 $ovs_dir/stdout || return 1 323 324 ovs_wait grep -q "rate:4294967295,group:2,cookie:eeff0c" $ovs_dir/stdout || return 1 325 326 return 0 327} 328 329# drop_reason test 330# - drop packets and verify the right drop reason is reported 331test_drop_reason() { 332 which perf >/dev/null 2>&1 || return $ksft_skip 333 334 sbx_add "test_drop_reason" || return $? 335 336 ovs_add_dp "test_drop_reason" dropreason || return 1 337 338 info "create namespaces" 339 for ns in client server; do 340 ovs_add_netns_and_veths "test_drop_reason" "dropreason" "$ns" \ 341 "${ns:0:1}0" "${ns:0:1}1" || return 1 342 done 343 344 # Setup client namespace 345 ip netns exec client ip addr add 172.31.110.10/24 dev c1 346 ip netns exec client ip link set c1 up 347 348 # Setup server namespace 349 ip netns exec server ip addr add 172.31.110.20/24 dev s1 350 ip netns exec server ip link set s1 up 351 352 # Check if drop reasons can be sent 353 ovs_add_flow "test_drop_reason" dropreason \ 354 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(10)' 2>/dev/null 355 if [ $? == 1 ]; then 356 info "no support for drop reasons - skipping" 357 ovs_exit_sig 358 return $ksft_skip 359 fi 360 361 ovs_del_flows "test_drop_reason" dropreason 362 363 # Allow ARP 364 ovs_add_flow "test_drop_reason" dropreason \ 365 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 366 ovs_add_flow "test_drop_reason" dropreason \ 367 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 368 369 # Allow client ICMP traffic but drop return path 370 ovs_add_flow "test_drop_reason" dropreason \ 371 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=1),icmp()" '2' 372 ovs_add_flow "test_drop_reason" dropreason \ 373 "in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,proto=1),icmp()" 'drop' 374 375 ovs_drop_record_and_run "test_drop_reason" ip netns exec client ping -c 2 172.31.110.20 376 ovs_drop_reason_count 0x30001 # OVS_DROP_FLOW_ACTION 377 if [[ "$?" -ne "2" ]]; then 378 info "Did not detect expected drops: $?" 379 return 1 380 fi 381 382 # Drop UDP 6000 traffic with an explicit action and an error code. 383 ovs_add_flow "test_drop_reason" dropreason \ 384 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=6000)" \ 385 'drop(42)' 386 # Drop UDP 7000 traffic with an explicit action with no error code. 387 ovs_add_flow "test_drop_reason" dropreason \ 388 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=7000)" \ 389 'drop(0)' 390 391 ovs_drop_record_and_run \ 392 "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000 393 ovs_drop_reason_count 0x30004 # OVS_DROP_EXPLICIT_ACTION_ERROR 394 if [[ "$?" -ne "1" ]]; then 395 info "Did not detect expected explicit error drops: $?" 396 return 1 397 fi 398 399 ovs_drop_record_and_run \ 400 "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000 401 ovs_drop_reason_count 0x30003 # OVS_DROP_EXPLICIT_ACTION 402 if [[ "$?" -ne "1" ]]; then 403 info "Did not detect expected explicit drops: $?" 404 return 1 405 fi 406 407 return 0 408} 409 410# arp_ping test 411# - client has 1500 byte MTU 412# - server has 1500 byte MTU 413# - send ARP ping between two ns 414test_arp_ping () { 415 416 which arping >/dev/null 2>&1 || return $ksft_skip 417 418 sbx_add "test_arp_ping" || return $? 419 420 ovs_add_dp "test_arp_ping" arpping || return 1 421 422 info "create namespaces" 423 for ns in client server; do 424 ovs_add_netns_and_veths "test_arp_ping" "arpping" "$ns" \ 425 "${ns:0:1}0" "${ns:0:1}1" || return 1 426 done 427 428 # Setup client namespace 429 ip netns exec client ip addr add 172.31.110.10/24 dev c1 430 ip netns exec client ip link set c1 up 431 HW_CLIENT=`ip netns exec client ip link show dev c1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'` 432 info "Client hwaddr: $HW_CLIENT" 433 434 # Setup server namespace 435 ip netns exec server ip addr add 172.31.110.20/24 dev s1 436 ip netns exec server ip link set s1 up 437 HW_SERVER=`ip netns exec server ip link show dev s1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'` 438 info "Server hwaddr: $HW_SERVER" 439 440 ovs_add_flow "test_arp_ping" arpping \ 441 "in_port(1),eth(),eth_type(0x0806),arp(sip=172.31.110.10,tip=172.31.110.20,sha=$HW_CLIENT,tha=ff:ff:ff:ff:ff:ff)" '2' || return 1 442 ovs_add_flow "test_arp_ping" arpping \ 443 "in_port(2),eth(),eth_type(0x0806),arp()" '1' || return 1 444 445 ovs_sbx "test_arp_ping" ip netns exec client arping -I c1 172.31.110.20 -c 1 || return 1 446 447 return 0 448} 449 450# ct_connect_v4 test 451# - client has 1500 byte MTU 452# - server has 1500 byte MTU 453# - use ICMP to ping in each direction 454# - only allow CT state stuff to pass through new in c -> s 455test_ct_connect_v4 () { 456 457 which nc >/dev/null 2>/dev/null || return $ksft_skip 458 459 sbx_add "test_ct_connect_v4" || return $? 460 461 ovs_add_dp "test_ct_connect_v4" ct4 || return 1 462 info "create namespaces" 463 for ns in client server; do 464 ovs_add_netns_and_veths "test_ct_connect_v4" "ct4" "$ns" \ 465 "${ns:0:1}0" "${ns:0:1}1" || return 1 466 done 467 468 ip netns exec client ip addr add 172.31.110.10/24 dev c1 469 ip netns exec client ip link set c1 up 470 ip netns exec server ip addr add 172.31.110.20/24 dev s1 471 ip netns exec server ip link set s1 up 472 473 # Add forwarding for ARP and ip packets - completely wildcarded 474 ovs_add_flow "test_ct_connect_v4" ct4 \ 475 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 476 ovs_add_flow "test_ct_connect_v4" ct4 \ 477 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 478 ovs_add_flow "test_ct_connect_v4" ct4 \ 479 'ct_state(-trk),eth(),eth_type(0x0800),ipv4()' \ 480 'ct(commit),recirc(0x1)' || return 1 481 ovs_add_flow "test_ct_connect_v4" ct4 \ 482 'recirc_id(0x1),ct_state(+trk+new),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \ 483 '2' || return 1 484 ovs_add_flow "test_ct_connect_v4" ct4 \ 485 'recirc_id(0x1),ct_state(+trk+est),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \ 486 '2' || return 1 487 ovs_add_flow "test_ct_connect_v4" ct4 \ 488 'recirc_id(0x1),ct_state(+trk+est),in_port(2),eth(),eth_type(0x0800),ipv4(dst=172.31.110.10)' \ 489 '1' || return 1 490 ovs_add_flow "test_ct_connect_v4" ct4 \ 491 'recirc_id(0x1),ct_state(+trk+inv),eth(),eth_type(0x0800),ipv4()' 'drop' || \ 492 return 1 493 494 # do a ping 495 ovs_sbx "test_ct_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1 496 497 # create an echo server in 'server' 498 echo "server" | \ 499 ovs_netns_spawn_daemon "test_ct_connect_v4" "server" \ 500 nc -lvnp 4443 501 ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.20 4443 || return 1 502 503 # Now test in the other direction (should fail) 504 echo "client" | \ 505 ovs_netns_spawn_daemon "test_ct_connect_v4" "client" \ 506 nc -lvnp 4443 507 ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443 508 if [ $? == 0 ]; then 509 info "ct connect to client was successful" 510 return 1 511 fi 512 513 info "done..." 514 return 0 515} 516 517# connect_v4 test 518# - client has 1500 byte MTU 519# - server has 1500 byte MTU 520# - use ICMP to ping in each direction 521test_connect_v4 () { 522 523 sbx_add "test_connect_v4" || return $? 524 525 ovs_add_dp "test_connect_v4" cv4 || return 1 526 527 info "create namespaces" 528 for ns in client server; do 529 ovs_add_netns_and_veths "test_connect_v4" "cv4" "$ns" \ 530 "${ns:0:1}0" "${ns:0:1}1" || return 1 531 done 532 533 534 ip netns exec client ip addr add 172.31.110.10/24 dev c1 535 ip netns exec client ip link set c1 up 536 ip netns exec server ip addr add 172.31.110.20/24 dev s1 537 ip netns exec server ip link set s1 up 538 539 # Add forwarding for ARP and ip packets - completely wildcarded 540 ovs_add_flow "test_connect_v4" cv4 \ 541 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 542 ovs_add_flow "test_connect_v4" cv4 \ 543 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 544 ovs_add_flow "test_connect_v4" cv4 \ 545 'in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' '2' || return 1 546 ovs_add_flow "test_connect_v4" cv4 \ 547 'in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20)' '1' || return 1 548 549 # do a ping 550 ovs_sbx "test_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1 551 552 info "done..." 553 return 0 554} 555 556# nat_connect_v4 test 557# - client has 1500 byte MTU 558# - server has 1500 byte MTU 559# - use ICMP to ping in each direction 560# - only allow CT state stuff to pass through new in c -> s 561test_nat_connect_v4 () { 562 which nc >/dev/null 2>/dev/null || return $ksft_skip 563 564 sbx_add "test_nat_connect_v4" || return $? 565 566 ovs_add_dp "test_nat_connect_v4" nat4 || return 1 567 info "create namespaces" 568 for ns in client server; do 569 ovs_add_netns_and_veths "test_nat_connect_v4" "nat4" "$ns" \ 570 "${ns:0:1}0" "${ns:0:1}1" || return 1 571 done 572 573 ip netns exec client ip addr add 172.31.110.10/24 dev c1 574 ip netns exec client ip link set c1 up 575 ip netns exec server ip addr add 172.31.110.20/24 dev s1 576 ip netns exec server ip link set s1 up 577 578 ip netns exec client ip route add default via 172.31.110.20 579 580 ovs_add_flow "test_nat_connect_v4" nat4 \ 581 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 582 ovs_add_flow "test_nat_connect_v4" nat4 \ 583 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 584 ovs_add_flow "test_nat_connect_v4" nat4 \ 585 "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20)" \ 586 "ct(commit,nat(dst=172.31.110.20)),recirc(0x1)" 587 ovs_add_flow "test_nat_connect_v4" nat4 \ 588 "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \ 589 "ct(commit,nat),recirc(0x2)" 590 591 ovs_add_flow "test_nat_connect_v4" nat4 \ 592 "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" "2" 593 ovs_add_flow "test_nat_connect_v4" nat4 \ 594 "recirc_id(0x2),ct_state(+trk-inv),in_port(2),eth(),eth_type(0x0800),ipv4()" "1" 595 596 # do a ping 597 ovs_sbx "test_nat_connect_v4" ip netns exec client ping 192.168.0.20 -c 3 || return 1 598 599 # create an echo server in 'server' 600 echo "server" | \ 601 ovs_netns_spawn_daemon "test_nat_connect_v4" "server" \ 602 nc -lvnp 4443 603 ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 192.168.0.20 4443 || return 1 604 605 # Now test in the other direction (should fail) 606 echo "client" | \ 607 ovs_netns_spawn_daemon "test_nat_connect_v4" "client" \ 608 nc -lvnp 4443 609 ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443 610 if [ $? == 0 ]; then 611 info "connect to client was successful" 612 return 1 613 fi 614 615 info "done..." 616 return 0 617} 618 619# nat_related_v4 test 620# - client->server ip packets go via SNAT 621# - client solicits ICMP destination unreachable packet from server 622# - undo NAT for ICMP reply and test dst ip has been updated 623test_nat_related_v4 () { 624 which nc >/dev/null 2>/dev/null || return $ksft_skip 625 626 sbx_add "test_nat_related_v4" || return $? 627 628 ovs_add_dp "test_nat_related_v4" natrelated4 || return 1 629 info "create namespaces" 630 for ns in client server; do 631 ovs_add_netns_and_veths "test_nat_related_v4" "natrelated4" "$ns" \ 632 "${ns:0:1}0" "${ns:0:1}1" || return 1 633 done 634 635 ip netns exec client ip addr add 172.31.110.10/24 dev c1 636 ip netns exec client ip link set c1 up 637 ip netns exec server ip addr add 172.31.110.20/24 dev s1 638 ip netns exec server ip link set s1 up 639 640 ip netns exec server ip route add 192.168.0.20/32 via 172.31.110.10 641 642 # Allow ARP 643 ovs_add_flow "test_nat_related_v4" natrelated4 \ 644 "in_port(1),eth(),eth_type(0x0806),arp()" "2" || return 1 645 ovs_add_flow "test_nat_related_v4" natrelated4 \ 646 "in_port(2),eth(),eth_type(0x0806),arp()" "1" || return 1 647 648 # Allow IP traffic from client->server, rewrite source IP with SNAT to 192.168.0.20 649 ovs_add_flow "test_nat_related_v4" natrelated4 \ 650 "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=172.31.110.20)" \ 651 "ct(commit,nat(src=192.168.0.20)),recirc(0x1)" || return 1 652 ovs_add_flow "test_nat_related_v4" natrelated4 \ 653 "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" \ 654 "2" || return 1 655 656 # Allow related ICMP responses back from server and undo NAT to restore original IP 657 # Drop any ICMP related packets where dst ip hasn't been restored back to original IP 658 ovs_add_flow "test_nat_related_v4" natrelated4 \ 659 "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \ 660 "ct(commit,nat),recirc(0x2)" || return 1 661 ovs_add_flow "test_nat_related_v4" natrelated4 \ 662 "recirc_id(0x2),ct_state(+rel+trk),in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,dst=172.31.110.10,proto=1),icmp()" \ 663 "1" || return 1 664 ovs_add_flow "test_nat_related_v4" natrelated4 \ 665 "recirc_id(0x2),ct_state(+rel+trk),in_port(2),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20,proto=1),icmp()" \ 666 "drop" || return 1 667 668 # Solicit destination unreachable response from server 669 ovs_sbx "test_nat_related_v4" ip netns exec client \ 670 bash -c "echo a | nc -u -w 1 172.31.110.20 10000" 671 672 # Check to make sure no packets matched the drop rule with incorrect dst ip 673 python3 "$ovs_base/ovs-dpctl.py" dump-flows natrelated4 \ 674 | grep "drop" | grep "packets:0" >/dev/null || return 1 675 676 info "done..." 677 return 0 678} 679 680# netlink_validation 681# - Create a dp 682# - check no warning with "old version" simulation 683test_netlink_checks () { 684 sbx_add "test_netlink_checks" || return 1 685 686 info "setting up new DP" 687 ovs_add_dp "test_netlink_checks" nv0 || return 1 688 # now try again 689 PRE_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+") 690 ovs_add_dp "test_netlink_checks" nv0 -V 0 || return 1 691 POST_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+") 692 if [ "$PRE_TEST" != "$POST_TEST" ]; then 693 info "failed - gen warning" 694 return 1 695 fi 696 697 ovs_add_netns_and_veths "test_netlink_checks" nv0 left left0 l0 || \ 698 return 1 699 ovs_add_netns_and_veths "test_netlink_checks" nv0 right right0 r0 || \ 700 return 1 701 [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ 702 wc -l) == 3 ] || \ 703 return 1 704 ovs_del_if "test_netlink_checks" nv0 right0 || return 1 705 [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ 706 wc -l) == 2 ] || \ 707 return 1 708 709 info "Checking clone depth" 710 ERR_MSG="Flow actions may not be safe on all matching packets" 711 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 712 ovs_add_flow "test_netlink_checks" nv0 \ 713 'in_port(1),eth(),eth_type(0x800),ipv4()' \ 714 'clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(drop)))))))))))))))))' \ 715 >/dev/null 2>&1 && return 1 716 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 717 718 if [ "$PRE_TEST" == "$POST_TEST" ]; then 719 info "failed - clone depth too large" 720 return 1 721 fi 722 723 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 724 ovs_add_flow "test_netlink_checks" nv0 \ 725 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \ 726 &> /dev/null && return 1 727 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 728 if [ "$PRE_TEST" == "$POST_TEST" ]; then 729 info "failed - error not generated" 730 return 1 731 fi 732 return 0 733} 734 735test_upcall_interfaces() { 736 sbx_add "test_upcall_interfaces" || return 1 737 738 info "setting up new DP" 739 ovs_add_dp "test_upcall_interfaces" ui0 -V 2:1 || return 1 740 741 ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \ 742 172.31.110.1/24 -u || return 1 743 744 ovs_wait grep -q "listening on upcall packet handler" ${ovs_dir}/left0.out 745 746 info "sending arping" 747 ip netns exec upc arping -I l0 172.31.110.20 -c 1 \ 748 >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr 749 750 grep -E "MISS upcall\[0/yes\]: .*arp\(sip=172.31.110.1,tip=172.31.110.20,op=1,sha=" $ovs_dir/left0.out >/dev/null 2>&1 || return 1 751 return 0 752} 753 754run_test() { 755 ( 756 tname="$1" 757 tdesc="$2" 758 759 if python3 ovs-dpctl.py -h 2>&1 | \ 760 grep -E "Need to (install|upgrade) the python" >/dev/null 2>&1; then 761 stdbuf -o0 printf "TEST: %-60s [PYLIB]\n" "${tdesc}" 762 return $ksft_skip 763 fi 764 765 python3 ovs-dpctl.py show >/dev/null 2>&1 || \ 766 echo "[DPCTL] show exception." 767 768 if ! lsmod | grep openvswitch >/dev/null 2>&1; then 769 stdbuf -o0 printf "TEST: %-60s [NOMOD]\n" "${tdesc}" 770 return $ksft_skip 771 fi 772 773 printf "TEST: %-60s [START]\n" "${tname}" 774 775 unset IFS 776 777 eval test_${tname} 778 ret=$? 779 780 if [ $ret -eq 0 ]; then 781 printf "TEST: %-60s [ OK ]\n" "${tdesc}" 782 ovs_exit_sig 783 rm -rf "$ovs_dir" 784 elif [ $ret -eq 1 ]; then 785 printf "TEST: %-60s [FAIL]\n" "${tdesc}" 786 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then 787 echo 788 echo "Pausing. Logs in $ovs_dir/. Hit enter to continue" 789 read a 790 fi 791 ovs_exit_sig 792 [ "${PAUSE_ON_FAIL}" = "yes" ] || rm -rf "$ovs_dir" 793 exit 1 794 elif [ $ret -eq $ksft_skip ]; then 795 printf "TEST: %-60s [SKIP]\n" "${tdesc}" 796 elif [ $ret -eq 2 ]; then 797 rm -rf test_${tname} 798 run_test "$1" "$2" 799 fi 800 801 return $ret 802 ) 803 ret=$? 804 case $ret in 805 0) 806 [ $all_skipped = true ] && [ $exitcode=$ksft_skip ] && exitcode=0 807 all_skipped=false 808 ;; 809 $ksft_skip) 810 [ $all_skipped = true ] && exitcode=$ksft_skip 811 ;; 812 *) 813 all_skipped=false 814 exitcode=1 815 ;; 816 esac 817 818 return $ret 819} 820 821 822exitcode=0 823desc=0 824all_skipped=true 825 826while getopts :pvt o 827do 828 case $o in 829 p) PAUSE_ON_FAIL=yes;; 830 v) VERBOSE=1;; 831 t) if which tcpdump > /dev/null 2>&1; then 832 TRACING=1 833 else 834 echo "=== tcpdump not available, tracing disabled" 835 fi 836 ;; 837 *) usage;; 838 esac 839done 840shift $(($OPTIND-1)) 841 842IFS=" 843" 844 845for arg do 846 # Check first that all requested tests are available before running any 847 command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; } 848done 849 850name="" 851desc="" 852for t in ${tests}; do 853 [ "${name}" = "" ] && name="${t}" && continue 854 [ "${desc}" = "" ] && desc="${t}" 855 856 run_this=1 857 for arg do 858 [ "${arg}" != "${arg#--*}" ] && continue 859 [ "${arg}" = "${name}" ] && run_this=1 && break 860 run_this=0 861 done 862 if [ $run_this -eq 1 ]; then 863 run_test "${name}" "${desc}" 864 fi 865 name="" 866 desc="" 867done 868 869exit ${exitcode} 870