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 [ $TRACING -eq 1 ] && ovs_netns_spawn_daemon "$1" "$ns" \ 175 tcpdump -i any -s 65535 176 177 return 0 178} 179 180ovs_add_flow () { 181 info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4" 182 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4" 183 if [ $? -ne 0 ]; then 184 info "Flow [ $3 : $4 ] failed" 185 return 1 186 fi 187 return 0 188} 189 190ovs_del_flows () { 191 info "Deleting all flows from DP: sbx:$1 br:$2" 192 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-flows "$2" 193 return 0 194} 195 196ovs_drop_record_and_run () { 197 local sbx=$1 198 shift 199 200 perf record -a -q -e skb:kfree_skb -o ${ovs_dir}/perf.data $* \ 201 >> ${ovs_dir}/stdout 2>> ${ovs_dir}/stderr 202 return $? 203} 204 205ovs_drop_reason_count() 206{ 207 local reason=$1 208 209 local perf_output=`perf script -i ${ovs_dir}/perf.data -F trace:event,trace` 210 local pattern="skb:kfree_skb:.*reason: $reason" 211 212 return `echo "$perf_output" | grep "$pattern" | wc -l` 213} 214 215ovs_test_flow_fails () { 216 ERR_MSG="Flow actions may not be safe on all matching packets" 217 218 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 219 ovs_add_flow $@ &> /dev/null $@ && return 1 220 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 221 222 if [ "$PRE_TEST" == "$POST_TEST" ]; then 223 return 1 224 fi 225 return 0 226} 227 228usage() { 229 echo 230 echo "$0 [OPTIONS] [TEST]..." 231 echo "If no TEST argument is given, all tests will be run." 232 echo 233 echo "Options" 234 echo " -t: capture traffic via tcpdump" 235 echo " -v: verbose" 236 echo " -p: pause on failure" 237 echo 238 echo "Available tests${tests}" 239 exit 1 240} 241 242 243# psample test 244# - use psample to observe packets 245test_psample() { 246 sbx_add "test_psample" || return $? 247 248 # Add a datapath with per-vport dispatching. 249 ovs_add_dp "test_psample" psample -V 2:1 || return 1 250 251 info "create namespaces" 252 ovs_add_netns_and_veths "test_psample" "psample" \ 253 client c0 c1 172.31.110.10/24 -u || return 1 254 ovs_add_netns_and_veths "test_psample" "psample" \ 255 server s0 s1 172.31.110.20/24 -u || return 1 256 257 # Check if psample actions can be configured. 258 ovs_add_flow "test_psample" psample \ 259 'in_port(1),eth(),eth_type(0x0806),arp()' 'psample(group=1)' &> /dev/null 260 if [ $? == 1 ]; then 261 info "no support for psample - skipping" 262 ovs_exit_sig 263 return $ksft_skip 264 fi 265 266 ovs_del_flows "test_psample" psample 267 268 # Test action verification. 269 OLDIFS=$IFS 270 IFS='*' 271 min_key='in_port(1),eth(),eth_type(0x0800),ipv4()' 272 for testcase in \ 273 "cookie to large"*"psample(group=1,cookie=1615141312111009080706050403020100)" \ 274 "no group with cookie"*"psample(cookie=abcd)" \ 275 "no group"*"psample()"; 276 do 277 set -- $testcase; 278 ovs_test_flow_fails "test_psample" psample $min_key $2 279 if [ $? == 1 ]; then 280 info "failed - $1" 281 return 1 282 fi 283 done 284 IFS=$OLDIFS 285 286 ovs_del_flows "test_psample" psample 287 # Allow ARP 288 ovs_add_flow "test_psample" psample \ 289 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 290 ovs_add_flow "test_psample" psample \ 291 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 292 293 # Sample first 14 bytes of all traffic. 294 ovs_add_flow "test_psample" psample \ 295 "in_port(1),eth(),eth_type(0x0800),ipv4()" \ 296 "trunc(14),psample(group=1,cookie=c0ffee),2" 297 298 # Sample all traffic. In this case, use a sample() action with both 299 # psample and an upcall emulating simultaneous local sampling and 300 # sFlow / IPFIX. 301 nlpid=$(grep -E "listening on upcall packet handler" \ 302 $ovs_dir/s0.out | cut -d ":" -f 2 | tr -d ' ') 303 304 ovs_add_flow "test_psample" psample \ 305 "in_port(2),eth(),eth_type(0x0800),ipv4()" \ 306 "sample(sample=100%,actions(psample(group=2,cookie=eeff0c),userspace(pid=${nlpid},userdata=eeff0c))),1" 307 308 # Record psample data. 309 ovs_spawn_daemon "test_psample" python3 $ovs_base/ovs-dpctl.py psample-events 310 ovs_wait grep -q "listening for psample events" ${ovs_dir}/stdout 311 312 # Send a single ping. 313 ovs_sbx "test_psample" ip netns exec client ping -I c1 172.31.110.20 -c 1 || return 1 314 315 # We should have received one userspace action upcall and 2 psample packets. 316 ovs_wait grep -q "userspace action command" $ovs_dir/s0.out || return 1 317 318 # client -> server samples should only contain the first 14 bytes of the packet. 319 ovs_wait grep -qE "rate:4294967295,group:1,cookie:c0ffee data:[0-9a-f]{28}$" \ 320 $ovs_dir/stdout || return 1 321 322 ovs_wait grep -q "rate:4294967295,group:2,cookie:eeff0c" $ovs_dir/stdout || return 1 323 324 return 0 325} 326 327# drop_reason test 328# - drop packets and verify the right drop reason is reported 329test_drop_reason() { 330 which perf >/dev/null 2>&1 || return $ksft_skip 331 332 sbx_add "test_drop_reason" || return $? 333 334 ovs_add_dp "test_drop_reason" dropreason || return 1 335 336 info "create namespaces" 337 for ns in client server; do 338 ovs_add_netns_and_veths "test_drop_reason" "dropreason" "$ns" \ 339 "${ns:0:1}0" "${ns:0:1}1" || return 1 340 done 341 342 # Setup client namespace 343 ip netns exec client ip addr add 172.31.110.10/24 dev c1 344 ip netns exec client ip link set c1 up 345 346 # Setup server namespace 347 ip netns exec server ip addr add 172.31.110.20/24 dev s1 348 ip netns exec server ip link set s1 up 349 350 # Check if drop reasons can be sent 351 ovs_add_flow "test_drop_reason" dropreason \ 352 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(10)' 2>/dev/null 353 if [ $? == 1 ]; then 354 info "no support for drop reasons - skipping" 355 ovs_exit_sig 356 return $ksft_skip 357 fi 358 359 ovs_del_flows "test_drop_reason" dropreason 360 361 # Allow ARP 362 ovs_add_flow "test_drop_reason" dropreason \ 363 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 364 ovs_add_flow "test_drop_reason" dropreason \ 365 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 366 367 # Allow client ICMP traffic but drop return path 368 ovs_add_flow "test_drop_reason" dropreason \ 369 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=1),icmp()" '2' 370 ovs_add_flow "test_drop_reason" dropreason \ 371 "in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,proto=1),icmp()" 'drop' 372 373 ovs_drop_record_and_run "test_drop_reason" ip netns exec client ping -c 2 172.31.110.20 374 ovs_drop_reason_count 0x30001 # OVS_DROP_FLOW_ACTION 375 if [[ "$?" -ne "2" ]]; then 376 info "Did not detect expected drops: $?" 377 return 1 378 fi 379 380 # Drop UDP 6000 traffic with an explicit action and an error code. 381 ovs_add_flow "test_drop_reason" dropreason \ 382 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=6000)" \ 383 'drop(42)' 384 # Drop UDP 7000 traffic with an explicit action with no error code. 385 ovs_add_flow "test_drop_reason" dropreason \ 386 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=7000)" \ 387 'drop(0)' 388 389 ovs_drop_record_and_run \ 390 "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000 391 ovs_drop_reason_count 0x30004 # OVS_DROP_EXPLICIT_ACTION_ERROR 392 if [[ "$?" -ne "1" ]]; then 393 info "Did not detect expected explicit error drops: $?" 394 return 1 395 fi 396 397 ovs_drop_record_and_run \ 398 "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000 399 ovs_drop_reason_count 0x30003 # OVS_DROP_EXPLICIT_ACTION 400 if [[ "$?" -ne "1" ]]; then 401 info "Did not detect expected explicit drops: $?" 402 return 1 403 fi 404 405 return 0 406} 407 408# arp_ping test 409# - client has 1500 byte MTU 410# - server has 1500 byte MTU 411# - send ARP ping between two ns 412test_arp_ping () { 413 414 which arping >/dev/null 2>&1 || return $ksft_skip 415 416 sbx_add "test_arp_ping" || return $? 417 418 ovs_add_dp "test_arp_ping" arpping || return 1 419 420 info "create namespaces" 421 for ns in client server; do 422 ovs_add_netns_and_veths "test_arp_ping" "arpping" "$ns" \ 423 "${ns:0:1}0" "${ns:0:1}1" || return 1 424 done 425 426 # Setup client namespace 427 ip netns exec client ip addr add 172.31.110.10/24 dev c1 428 ip netns exec client ip link set c1 up 429 HW_CLIENT=`ip netns exec client ip link show dev c1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'` 430 info "Client hwaddr: $HW_CLIENT" 431 432 # Setup server namespace 433 ip netns exec server ip addr add 172.31.110.20/24 dev s1 434 ip netns exec server ip link set s1 up 435 HW_SERVER=`ip netns exec server ip link show dev s1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'` 436 info "Server hwaddr: $HW_SERVER" 437 438 ovs_add_flow "test_arp_ping" arpping \ 439 "in_port(1),eth(),eth_type(0x0806),arp(sip=172.31.110.10,tip=172.31.110.20,sha=$HW_CLIENT,tha=ff:ff:ff:ff:ff:ff)" '2' || return 1 440 ovs_add_flow "test_arp_ping" arpping \ 441 "in_port(2),eth(),eth_type(0x0806),arp()" '1' || return 1 442 443 ovs_sbx "test_arp_ping" ip netns exec client arping -I c1 172.31.110.20 -c 1 || return 1 444 445 return 0 446} 447 448# ct_connect_v4 test 449# - client has 1500 byte MTU 450# - server has 1500 byte MTU 451# - use ICMP to ping in each direction 452# - only allow CT state stuff to pass through new in c -> s 453test_ct_connect_v4 () { 454 455 which nc >/dev/null 2>/dev/null || return $ksft_skip 456 457 sbx_add "test_ct_connect_v4" || return $? 458 459 ovs_add_dp "test_ct_connect_v4" ct4 || return 1 460 info "create namespaces" 461 for ns in client server; do 462 ovs_add_netns_and_veths "test_ct_connect_v4" "ct4" "$ns" \ 463 "${ns:0:1}0" "${ns:0:1}1" || return 1 464 done 465 466 ip netns exec client ip addr add 172.31.110.10/24 dev c1 467 ip netns exec client ip link set c1 up 468 ip netns exec server ip addr add 172.31.110.20/24 dev s1 469 ip netns exec server ip link set s1 up 470 471 # Add forwarding for ARP and ip packets - completely wildcarded 472 ovs_add_flow "test_ct_connect_v4" ct4 \ 473 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 474 ovs_add_flow "test_ct_connect_v4" ct4 \ 475 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 476 ovs_add_flow "test_ct_connect_v4" ct4 \ 477 'ct_state(-trk),eth(),eth_type(0x0800),ipv4()' \ 478 'ct(commit),recirc(0x1)' || return 1 479 ovs_add_flow "test_ct_connect_v4" ct4 \ 480 'recirc_id(0x1),ct_state(+trk+new),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \ 481 '2' || return 1 482 ovs_add_flow "test_ct_connect_v4" ct4 \ 483 'recirc_id(0x1),ct_state(+trk+est),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \ 484 '2' || return 1 485 ovs_add_flow "test_ct_connect_v4" ct4 \ 486 'recirc_id(0x1),ct_state(+trk+est),in_port(2),eth(),eth_type(0x0800),ipv4(dst=172.31.110.10)' \ 487 '1' || return 1 488 ovs_add_flow "test_ct_connect_v4" ct4 \ 489 'recirc_id(0x1),ct_state(+trk+inv),eth(),eth_type(0x0800),ipv4()' 'drop' || \ 490 return 1 491 492 # do a ping 493 ovs_sbx "test_ct_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1 494 495 # create an echo server in 'server' 496 echo "server" | \ 497 ovs_netns_spawn_daemon "test_ct_connect_v4" "server" \ 498 nc -lvnp 4443 499 ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.20 4443 || return 1 500 501 # Now test in the other direction (should fail) 502 echo "client" | \ 503 ovs_netns_spawn_daemon "test_ct_connect_v4" "client" \ 504 nc -lvnp 4443 505 ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443 506 if [ $? == 0 ]; then 507 info "ct connect to client was successful" 508 return 1 509 fi 510 511 info "done..." 512 return 0 513} 514 515# connect_v4 test 516# - client has 1500 byte MTU 517# - server has 1500 byte MTU 518# - use ICMP to ping in each direction 519test_connect_v4 () { 520 521 sbx_add "test_connect_v4" || return $? 522 523 ovs_add_dp "test_connect_v4" cv4 || return 1 524 525 info "create namespaces" 526 for ns in client server; do 527 ovs_add_netns_and_veths "test_connect_v4" "cv4" "$ns" \ 528 "${ns:0:1}0" "${ns:0:1}1" || return 1 529 done 530 531 532 ip netns exec client ip addr add 172.31.110.10/24 dev c1 533 ip netns exec client ip link set c1 up 534 ip netns exec server ip addr add 172.31.110.20/24 dev s1 535 ip netns exec server ip link set s1 up 536 537 # Add forwarding for ARP and ip packets - completely wildcarded 538 ovs_add_flow "test_connect_v4" cv4 \ 539 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 540 ovs_add_flow "test_connect_v4" cv4 \ 541 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 542 ovs_add_flow "test_connect_v4" cv4 \ 543 'in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' '2' || return 1 544 ovs_add_flow "test_connect_v4" cv4 \ 545 'in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20)' '1' || return 1 546 547 # do a ping 548 ovs_sbx "test_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1 549 550 info "done..." 551 return 0 552} 553 554# nat_connect_v4 test 555# - client has 1500 byte MTU 556# - server has 1500 byte MTU 557# - use ICMP to ping in each direction 558# - only allow CT state stuff to pass through new in c -> s 559test_nat_connect_v4 () { 560 which nc >/dev/null 2>/dev/null || return $ksft_skip 561 562 sbx_add "test_nat_connect_v4" || return $? 563 564 ovs_add_dp "test_nat_connect_v4" nat4 || return 1 565 info "create namespaces" 566 for ns in client server; do 567 ovs_add_netns_and_veths "test_nat_connect_v4" "nat4" "$ns" \ 568 "${ns:0:1}0" "${ns:0:1}1" || return 1 569 done 570 571 ip netns exec client ip addr add 172.31.110.10/24 dev c1 572 ip netns exec client ip link set c1 up 573 ip netns exec server ip addr add 172.31.110.20/24 dev s1 574 ip netns exec server ip link set s1 up 575 576 ip netns exec client ip route add default via 172.31.110.20 577 578 ovs_add_flow "test_nat_connect_v4" nat4 \ 579 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 580 ovs_add_flow "test_nat_connect_v4" nat4 \ 581 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 582 ovs_add_flow "test_nat_connect_v4" nat4 \ 583 "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20)" \ 584 "ct(commit,nat(dst=172.31.110.20)),recirc(0x1)" 585 ovs_add_flow "test_nat_connect_v4" nat4 \ 586 "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \ 587 "ct(commit,nat),recirc(0x2)" 588 589 ovs_add_flow "test_nat_connect_v4" nat4 \ 590 "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" "2" 591 ovs_add_flow "test_nat_connect_v4" nat4 \ 592 "recirc_id(0x2),ct_state(+trk-inv),in_port(2),eth(),eth_type(0x0800),ipv4()" "1" 593 594 # do a ping 595 ovs_sbx "test_nat_connect_v4" ip netns exec client ping 192.168.0.20 -c 3 || return 1 596 597 # create an echo server in 'server' 598 echo "server" | \ 599 ovs_netns_spawn_daemon "test_nat_connect_v4" "server" \ 600 nc -lvnp 4443 601 ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 192.168.0.20 4443 || return 1 602 603 # Now test in the other direction (should fail) 604 echo "client" | \ 605 ovs_netns_spawn_daemon "test_nat_connect_v4" "client" \ 606 nc -lvnp 4443 607 ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443 608 if [ $? == 0 ]; then 609 info "connect to client was successful" 610 return 1 611 fi 612 613 info "done..." 614 return 0 615} 616 617# nat_related_v4 test 618# - client->server ip packets go via SNAT 619# - client solicits ICMP destination unreachable packet from server 620# - undo NAT for ICMP reply and test dst ip has been updated 621test_nat_related_v4 () { 622 which nc >/dev/null 2>/dev/null || return $ksft_skip 623 624 sbx_add "test_nat_related_v4" || return $? 625 626 ovs_add_dp "test_nat_related_v4" natrelated4 || return 1 627 info "create namespaces" 628 for ns in client server; do 629 ovs_add_netns_and_veths "test_nat_related_v4" "natrelated4" "$ns" \ 630 "${ns:0:1}0" "${ns:0:1}1" || return 1 631 done 632 633 ip netns exec client ip addr add 172.31.110.10/24 dev c1 634 ip netns exec client ip link set c1 up 635 ip netns exec server ip addr add 172.31.110.20/24 dev s1 636 ip netns exec server ip link set s1 up 637 638 ip netns exec server ip route add 192.168.0.20/32 via 172.31.110.10 639 640 # Allow ARP 641 ovs_add_flow "test_nat_related_v4" natrelated4 \ 642 "in_port(1),eth(),eth_type(0x0806),arp()" "2" || return 1 643 ovs_add_flow "test_nat_related_v4" natrelated4 \ 644 "in_port(2),eth(),eth_type(0x0806),arp()" "1" || return 1 645 646 # Allow IP traffic from client->server, rewrite source IP with SNAT to 192.168.0.20 647 ovs_add_flow "test_nat_related_v4" natrelated4 \ 648 "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=172.31.110.20)" \ 649 "ct(commit,nat(src=192.168.0.20)),recirc(0x1)" || return 1 650 ovs_add_flow "test_nat_related_v4" natrelated4 \ 651 "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" \ 652 "2" || return 1 653 654 # Allow related ICMP responses back from server and undo NAT to restore original IP 655 # Drop any ICMP related packets where dst ip hasn't been restored back to original IP 656 ovs_add_flow "test_nat_related_v4" natrelated4 \ 657 "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \ 658 "ct(commit,nat),recirc(0x2)" || return 1 659 ovs_add_flow "test_nat_related_v4" natrelated4 \ 660 "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()" \ 661 "1" || return 1 662 ovs_add_flow "test_nat_related_v4" natrelated4 \ 663 "recirc_id(0x2),ct_state(+rel+trk),in_port(2),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20,proto=1),icmp()" \ 664 "drop" || return 1 665 666 # Solicit destination unreachable response from server 667 ovs_sbx "test_nat_related_v4" ip netns exec client \ 668 bash -c "echo a | nc -u -w 1 172.31.110.20 10000" 669 670 # Check to make sure no packets matched the drop rule with incorrect dst ip 671 python3 "$ovs_base/ovs-dpctl.py" dump-flows natrelated4 \ 672 | grep "drop" | grep "packets:0" >/dev/null || return 1 673 674 info "done..." 675 return 0 676} 677 678# netlink_validation 679# - Create a dp 680# - check no warning with "old version" simulation 681test_netlink_checks () { 682 sbx_add "test_netlink_checks" || return 1 683 684 info "setting up new DP" 685 ovs_add_dp "test_netlink_checks" nv0 || return 1 686 # now try again 687 PRE_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+") 688 ovs_add_dp "test_netlink_checks" nv0 -V 0 || return 1 689 POST_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+") 690 if [ "$PRE_TEST" != "$POST_TEST" ]; then 691 info "failed - gen warning" 692 return 1 693 fi 694 695 ovs_add_netns_and_veths "test_netlink_checks" nv0 left left0 l0 || \ 696 return 1 697 ovs_add_netns_and_veths "test_netlink_checks" nv0 right right0 r0 || \ 698 return 1 699 [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ 700 wc -l) == 3 ] || \ 701 return 1 702 ovs_del_if "test_netlink_checks" nv0 right0 || return 1 703 [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ 704 wc -l) == 2 ] || \ 705 return 1 706 707 info "Checking clone depth" 708 ERR_MSG="Flow actions may not be safe on all matching packets" 709 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 710 ovs_add_flow "test_netlink_checks" nv0 \ 711 'in_port(1),eth(),eth_type(0x800),ipv4()' \ 712 'clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(drop)))))))))))))))))' \ 713 >/dev/null 2>&1 && return 1 714 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 715 716 if [ "$PRE_TEST" == "$POST_TEST" ]; then 717 info "failed - clone depth too large" 718 return 1 719 fi 720 721 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 722 ovs_add_flow "test_netlink_checks" nv0 \ 723 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \ 724 &> /dev/null && return 1 725 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 726 if [ "$PRE_TEST" == "$POST_TEST" ]; then 727 info "failed - error not generated" 728 return 1 729 fi 730 return 0 731} 732 733test_upcall_interfaces() { 734 sbx_add "test_upcall_interfaces" || return 1 735 736 info "setting up new DP" 737 ovs_add_dp "test_upcall_interfaces" ui0 -V 2:1 || return 1 738 739 ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \ 740 172.31.110.1/24 -u || return 1 741 742 ovs_wait grep -q "listening on upcall packet handler" ${ovs_dir}/left0.out 743 744 info "sending arping" 745 ip netns exec upc arping -I l0 172.31.110.20 -c 1 \ 746 >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr 747 748 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 1 749 return 0 750} 751 752run_test() { 753 ( 754 tname="$1" 755 tdesc="$2" 756 757 if python3 ovs-dpctl.py -h 2>&1 | \ 758 grep -E "Need to (install|upgrade) the python" >/dev/null 2>&1; then 759 stdbuf -o0 printf "TEST: %-60s [PYLIB]\n" "${tdesc}" 760 return $ksft_skip 761 fi 762 763 python3 ovs-dpctl.py show >/dev/null 2>&1 || \ 764 echo "[DPCTL] show exception." 765 766 if ! lsmod | grep openvswitch >/dev/null 2>&1; then 767 stdbuf -o0 printf "TEST: %-60s [NOMOD]\n" "${tdesc}" 768 return $ksft_skip 769 fi 770 771 printf "TEST: %-60s [START]\n" "${tname}" 772 773 unset IFS 774 775 eval test_${tname} 776 ret=$? 777 778 if [ $ret -eq 0 ]; then 779 printf "TEST: %-60s [ OK ]\n" "${tdesc}" 780 ovs_exit_sig 781 rm -rf "$ovs_dir" 782 elif [ $ret -eq 1 ]; then 783 printf "TEST: %-60s [FAIL]\n" "${tdesc}" 784 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then 785 echo 786 echo "Pausing. Logs in $ovs_dir/. Hit enter to continue" 787 read a 788 fi 789 ovs_exit_sig 790 [ "${PAUSE_ON_FAIL}" = "yes" ] || rm -rf "$ovs_dir" 791 exit 1 792 elif [ $ret -eq $ksft_skip ]; then 793 printf "TEST: %-60s [SKIP]\n" "${tdesc}" 794 elif [ $ret -eq 2 ]; then 795 rm -rf test_${tname} 796 run_test "$1" "$2" 797 fi 798 799 return $ret 800 ) 801 ret=$? 802 case $ret in 803 0) 804 [ $all_skipped = true ] && [ $exitcode=$ksft_skip ] && exitcode=0 805 all_skipped=false 806 ;; 807 $ksft_skip) 808 [ $all_skipped = true ] && exitcode=$ksft_skip 809 ;; 810 *) 811 all_skipped=false 812 exitcode=1 813 ;; 814 esac 815 816 return $ret 817} 818 819 820exitcode=0 821desc=0 822all_skipped=true 823 824while getopts :pvt o 825do 826 case $o in 827 p) PAUSE_ON_FAIL=yes;; 828 v) VERBOSE=1;; 829 t) if which tcpdump > /dev/null 2>&1; then 830 TRACING=1 831 else 832 echo "=== tcpdump not available, tracing disabled" 833 fi 834 ;; 835 *) usage;; 836 esac 837done 838shift $(($OPTIND-1)) 839 840IFS=" 841" 842 843for arg do 844 # Check first that all requested tests are available before running any 845 command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; } 846done 847 848name="" 849desc="" 850for t in ${tests}; do 851 [ "${name}" = "" ] && name="${t}" && continue 852 [ "${desc}" = "" ] && desc="${t}" 853 854 run_this=1 855 for arg do 856 [ "${arg}" != "${arg#--*}" ] && continue 857 [ "${arg}" = "${name}" ] && run_this=1 && break 858 run_this=0 859 done 860 if [ $run_this -eq 1 ]; then 861 run_test "${name}" "${desc}" 862 fi 863 name="" 864 desc="" 865done 866 867exit ${exitcode} 868