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$KSFT_MACHINE_SLOW" == "Xyes"; then 17 WAIT_TIMEOUT=10 18fi 19 20tests=" 21 arp_ping eth-arp: Basic arp ping between two NS 22 ct_connect_v4 ip4-ct-xon: Basic ipv4 tcp connection using ct 23 connect_v4 ip4-xon: Basic ipv4 ping between two NS 24 nat_connect_v4 ip4-nat-xon: Basic ipv4 tcp connection via NAT 25 nat_related_v4 ip4-nat-related: ICMP related matches work with SNAT 26 netlink_checks ovsnl: validate netlink attrs and settings 27 upcall_interfaces ovs: test the upcall interfaces 28 tunnel_metadata ovs: test extraction of tunnel metadata 29 tunnel_refcount ovs: test tunnel vport reference cleanup 30 drop_reason drop: test drop reasons are emitted 31 pop_vlan vlan: POP_VLAN action strips tag 32 dec_ttl ttl: dec_ttl decrements IP TTL 33 flow_set flow-set: Flow modify 34 action_set set: SET action rewrites fields 35 trunc trunc: output truncation 36 icmpv6 icmpv6: ICMPv6 echo type match 37 psample psample: Sampling packets with psample" 38 39info() { 40 [ "${ovs_dir}" != "" ] && 41 echo "`date +"[%m-%d %H:%M:%S]"` $*" >> ${ovs_dir}/debug.log 42 [ $VERBOSE = 0 ] || echo $* 43} 44 45ovs_wait() { 46 info "waiting $WAIT_TIMEOUT s for: $@" 47 48 if "$@" ; then 49 info "wait succeeded immediately" 50 return 0 51 fi 52 53 # A quick re-check helps speed up small races in fast systems. 54 # However, fractional sleeps might not necessarily work. 55 local start=0 56 sleep 0.1 || { sleep 1; start=1; } 57 58 for (( i=start; i<WAIT_TIMEOUT; i++ )); do 59 if "$@" ; then 60 info "wait succeeded after $i seconds" 61 return 0 62 fi 63 sleep 1 64 done 65 info "wait failed after $i seconds" 66 return 1 67} 68 69ovs_base=`pwd` 70sbxs= 71sbx_add () { 72 info "adding sandbox '$1'" 73 74 sbxs="$sbxs $1" 75 76 NO_BIN=0 77 78 # Create sandbox. 79 local d="$ovs_base"/$1 80 if [ -e $d ]; then 81 info "removing $d" 82 rm -rf "$d" 83 fi 84 mkdir "$d" || return 1 85 ovs_setenv $1 86} 87 88ovs_exit_sig() { 89 [ -e ${ovs_dir}/cleanup ] && . "$ovs_dir/cleanup" 90} 91 92on_exit() { 93 echo "$1" > ${ovs_dir}/cleanup.tmp 94 cat ${ovs_dir}/cleanup >> ${ovs_dir}/cleanup.tmp 95 mv ${ovs_dir}/cleanup.tmp ${ovs_dir}/cleanup 96} 97 98ovs_setenv() { 99 sandbox=$1 100 101 ovs_dir=$ovs_base${1:+/$1}; export ovs_dir 102 103 test -e ${ovs_dir}/cleanup || : > ${ovs_dir}/cleanup 104} 105 106ovs_sbx() { 107 if test "X$2" != X; then 108 (ovs_setenv $1; shift; 109 info "run cmd: $@"; "$@" >> ${ovs_dir}/debug.log) 110 else 111 ovs_setenv $1 112 fi 113} 114 115ovs_add_dp () { 116 info "Adding DP/Bridge IF: sbx:$1 dp:$2 {$3, $4, $5}" 117 sbxname="$1" 118 shift 119 ovs_sbx "$sbxname" python3 $ovs_base/ovs-dpctl.py add-dp $* 120 on_exit "ovs_sbx $sbxname python3 $ovs_base/ovs-dpctl.py del-dp $1;" 121} 122 123ovs_add_if () { 124 info "Adding IF to DP: br:$3 if:$4 ($2)" 125 if [ "$5" != "-u" ]; then 126 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if \ 127 -t "$2" "$3" "$4" || return 1 128 else 129 python3 $ovs_base/ovs-dpctl.py add-if \ 130 -u -t "$2" "$3" "$4" >$ovs_dir/$4.out 2>$ovs_dir/$4.err & 131 pid=$! 132 on_exit "ovs_sbx $1 kill -TERM $pid 2>/dev/null" 133 fi 134} 135 136ovs_del_if () { 137 info "Deleting IF from DP: br:$2 if:$3" 138 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-if "$2" "$3" || return 1 139} 140 141ovs_netns_spawn_daemon() { 142 sbx=$1 143 shift 144 netns=$1 145 shift 146 if [ "$netns" == "_default" ]; then 147 $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & 148 else 149 ip netns exec $netns $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & 150 fi 151 pid=$! 152 ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null" 153} 154 155ovs_spawn_daemon() { 156 sbx=$1 157 shift 158 ovs_netns_spawn_daemon $sbx "_default" $* 159} 160 161ovs_add_netns_and_veths () { 162 info "Adding netns attached: sbx:$1 dp:$2 {$3, $4, $5}" 163 ovs_sbx "$1" ip netns add "$3" || return 1 164 on_exit "ovs_sbx $1 ip netns del $3" 165 ovs_sbx "$1" ip link add "$4" type veth peer name "$5" || return 1 166 on_exit "ovs_sbx $1 ip link del $4 >/dev/null 2>&1" 167 ovs_sbx "$1" ip link set "$4" up || return 1 168 ovs_sbx "$1" ip link set "$5" netns "$3" || return 1 169 ovs_sbx "$1" ip netns exec "$3" ip link set "$5" up || return 1 170 171 if [ "$6" != "" ]; then 172 ovs_sbx "$1" ip netns exec "$3" ip addr add "$6" dev "$5" \ 173 || return 1 174 fi 175 176 if [ "$7" != "-u" ]; then 177 ovs_add_if "$1" "netdev" "$2" "$4" || return 1 178 else 179 ovs_add_if "$1" "netdev" "$2" "$4" -u || return 1 180 fi 181 182 if [ $TRACING -eq 1 ]; then 183 ovs_netns_spawn_daemon "$1" "$3" tcpdump -l -i any -s 6553 184 ovs_wait grep -q "listening on any" ${ovs_dir}/stderr 185 fi 186 187 return 0 188} 189 190ovs_add_flow () { 191 info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4" 192 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4" 193 if [ $? -ne 0 ]; then 194 info "Flow [ $3 : $4 ] failed" 195 return 1 196 fi 197 return 0 198} 199 200ovs_mod_flow () { 201 if [ -n "$4" ]; then 202 info "Modifying flow: sbx:$1 br:$2 flow:$3 act:$4" 203 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py \ 204 mod-flow "$2" "$3" "$4" 205 else 206 info "Modifying flow (no actions): sbx:$1 br:$2 flow:$3" 207 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py \ 208 mod-flow "$2" "$3" 209 fi 210 if [ $? -ne 0 ]; then 211 info "Flow modify [ $3 ] failed" 212 return 1 213 fi 214 return 0 215} 216 217ovs_del_flows () { 218 info "Deleting all flows from DP: sbx:$1 br:$2" 219 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-flows "$2" 220 return 0 221} 222 223ovs_drop_record_and_run () { 224 local sbx=$1 225 shift 226 227 perf record -a -q -e skb:kfree_skb -o ${ovs_dir}/perf.data $* \ 228 >> ${ovs_dir}/stdout 2>> ${ovs_dir}/stderr 229 return $? 230} 231 232ovs_drop_reason_count() 233{ 234 local reason=$1 235 236 local perf_output=`perf script -i ${ovs_dir}/perf.data -F trace:event,trace` 237 local pattern="skb:kfree_skb:.*reason: $reason" 238 239 return `echo "$perf_output" | grep "$pattern" | wc -l` 240} 241 242ovs_test_flow_fails () { 243 ERR_MSG="Flow actions may not be safe on all matching packets" 244 245 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 246 ovs_add_flow $@ &> /dev/null $@ && return 1 247 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 248 249 if [ "$PRE_TEST" == "$POST_TEST" ]; then 250 return 1 251 fi 252 return 0 253} 254 255usage() { 256 echo 257 echo "$0 [OPTIONS] [TEST]..." 258 echo "If no TEST argument is given, all tests will be run." 259 echo 260 echo "Options" 261 echo " -t: capture traffic via tcpdump" 262 echo " -v: verbose" 263 echo " -p: pause on failure" 264 echo 265 echo "Available tests${tests}" 266 exit 1 267} 268 269 270test_dec_ttl() { 271 sbx_add "test_dec_ttl" || return $? 272 ovs_add_dp "test_dec_ttl" decttl || return 1 273 274 info "create namespaces" 275 for ns in client server; do 276 ovs_add_netns_and_veths "test_dec_ttl" "decttl" "$ns" \ 277 "${ns:0:1}0" "${ns:0:1}1" || return 1 278 done 279 280 ip netns exec client ip addr add 10.0.0.1/24 dev c1 281 ip netns exec client ip link set c1 up 282 ip netns exec server ip addr add 10.0.0.2/24 dev s1 283 ip netns exec server ip link set s1 up 284 285 # Probe: check if kernel supports dec_ttl action. 286 ovs_add_flow "test_dec_ttl" decttl \ 287 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ 288 'dec_ttl(le_1())' &>/dev/null 289 if [ $? -ne 0 ]; then 290 info "no support for dec_ttl - skipping" 291 ovs_exit_sig 292 return $ksft_skip 293 fi 294 295 ovs_del_flows "test_dec_ttl" decttl 296 297 # ARP flows (bidirectional) 298 ovs_add_flow "test_dec_ttl" decttl \ 299 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 300 ovs_add_flow "test_dec_ttl" decttl \ 301 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 302 303 # IP flows with dec_ttl action 304 ovs_add_flow "test_dec_ttl" decttl \ 305 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ 306 'dec_ttl(le_1()),2' || return 1 307 ovs_add_flow "test_dec_ttl" decttl \ 308 'in_port(2),eth(),eth_type(0x0800),ipv4()' \ 309 'dec_ttl(le_1()),1' || return 1 310 311 info "verify connectivity with dec_ttl" 312 ovs_sbx "test_dec_ttl" ip netns exec client ping -c 1 -W 2 \ 313 10.0.0.2 || return 1 314 315 info "verify TTL=1 is dropped by dec_ttl" 316 ovs_sbx "test_dec_ttl" ip netns exec client ping -c 1 -W 2 \ 317 -t 1 10.0.0.2 >/dev/null 2>&1 \ 318 && { info "FAIL: ping should fail with TTL=1 and dec_ttl" 319 return 1; } 320 321 return 0 322} 323 324test_flow_set() { 325 sbx_add "test_flow_set" || return $? 326 ovs_add_dp "test_flow_set" flowset || return 1 327 328 info "create namespaces" 329 for ns in client server; do 330 ovs_add_netns_and_veths "test_flow_set" "flowset" "$ns" \ 331 "${ns:0:1}0" "${ns:0:1}1" || return 1 332 done 333 334 ip netns exec client ip addr add 10.0.0.1/24 dev c1 335 ip netns exec client ip link set c1 up 336 ip netns exec server ip addr add 10.0.0.2/24 dev s1 337 ip netns exec server ip link set s1 up 338 339 ovs_add_flow "test_flow_set" flowset \ 340 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 341 ovs_add_flow "test_flow_set" flowset \ 342 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 343 344 local fwd_flow="ufid:00000001-0002-0003-0004-000500060007" 345 fwd_flow="$fwd_flow,in_port(1),eth(),eth_type(0x0800),ipv4()" 346 347 ovs_add_flow "test_flow_set" flowset "$fwd_flow" '2' \ 348 || return 1 349 ovs_add_flow "test_flow_set" flowset \ 350 'in_port(2),eth(),eth_type(0x0800),ipv4()' '1' || return 1 351 352 info "verify initial forwarding" 353 ovs_sbx "test_flow_set" ip netns exec client ping -c 1 -W 2 \ 354 10.0.0.2 || return 1 355 356 info "mod-flow with new actions (change to drop)" 357 ovs_mod_flow "test_flow_set" flowset "$fwd_flow" 'drop' \ 358 || return 1 359 360 info "verify traffic is now dropped" 361 ovs_sbx "test_flow_set" ip netns exec client ping -c 1 -W 2 \ 362 10.0.0.2 >/dev/null 2>&1 \ 363 && { info "FAIL: ping should fail after mod-flow to drop" 364 return 1; } 365 366 info "mod-flow without actions" 367 ovs_mod_flow "test_flow_set" flowset "$fwd_flow" || return 1 368 369 info "verify flow retained drop action via dump" 370 python3 "$ovs_base/ovs-dpctl.py" dump-flows flowset \ 371 | grep -q "actions:drop" || \ 372 { info "FAIL: flow not showing drop action"; return 1; } 373 374 info "verify drop actions unchanged" 375 ovs_sbx "test_flow_set" ip netns exec client ping -c 1 -W 2 \ 376 10.0.0.2 >/dev/null 2>&1 \ 377 && { info "FAIL: ping should still fail after no-actions set" 378 return 1; } 379 380 return 0 381} 382 383test_action_set() { 384 sbx_add "test_action_set" || return $? 385 ovs_add_dp "test_action_set" settest || return 1 386 387 info "create namespaces" 388 for ns in client server; do 389 ovs_add_netns_and_veths "test_action_set" "settest" "$ns" \ 390 "${ns:0:1}0" "${ns:0:1}1" || return 1 391 done 392 393 ip netns exec client ip addr add 10.0.0.1/24 dev c1 394 ip netns exec client ip link set c1 up 395 ip netns exec server ip addr add 10.0.0.2/24 dev s1 396 ip netns exec server ip link set s1 up 397 398 ovs_add_flow "test_action_set" settest \ 399 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 400 ovs_add_flow "test_action_set" settest \ 401 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 402 403 ovs_add_flow "test_action_set" settest \ 404 'in_port(1),eth(),eth_type(0x0800),ipv4()' '2' || return 1 405 ovs_add_flow "test_action_set" settest \ 406 'in_port(2),eth(),eth_type(0x0800),ipv4()' '1' || return 1 407 408 info "verify connectivity without SET" 409 ovs_sbx "test_action_set" ip netns exec client ping -c 1 -W 2 \ 410 10.0.0.2 || return 1 411 412 ovs_del_flows "test_action_set" settest 413 ovs_add_flow "test_action_set" settest \ 414 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 415 ovs_add_flow "test_action_set" settest \ 416 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 417 418 info "set ipv4 dst to unreachable address" 419 ovs_add_flow "test_action_set" settest \ 420 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ 421 'set(ipv4(dst=10.0.0.99)),2' || return 1 422 ovs_add_flow "test_action_set" settest \ 423 'in_port(2),eth(),eth_type(0x0800),ipv4()' '1' || return 1 424 425 info "verify ping fails with rewritten dst" 426 ovs_sbx "test_action_set" ip netns exec client ping -c 1 -W 2 \ 427 10.0.0.2 >/dev/null 2>&1 \ 428 && { info "FAIL: ping should fail with dst rewritten" 429 return 1; } 430 431 ovs_del_flows "test_action_set" settest 432 ovs_add_flow "test_action_set" settest \ 433 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 434 ovs_add_flow "test_action_set" settest \ 435 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 436 ovs_add_flow "test_action_set" settest \ 437 'in_port(1),eth(),eth_type(0x0800),ipv4()' '2' || return 1 438 ovs_add_flow "test_action_set" settest \ 439 'in_port(2),eth(),eth_type(0x0800),ipv4()' '1' || return 1 440 441 info "verify connectivity restored without SET" 442 ovs_sbx "test_action_set" ip netns exec client ping -c 1 -W 2 \ 443 10.0.0.2 || return 1 444 445 return 0 446} 447 448# trunc test 449# - trunc(14): truncate to ETH_HLEN, strips IP payload, ping fails 450# - trunc(1) and trunc(13): kernel rejects below ETH_HLEN (EINVAL) 451# - restore normal forwarding and verify recovery 452test_trunc() { 453 sbx_add "test_trunc" || return $? 454 ovs_add_dp "test_trunc" trunctest || return 1 455 456 info "create namespaces" 457 for ns in client server; do 458 ovs_add_netns_and_veths "test_trunc" "trunctest" \ 459 "$ns" "${ns:0:1}0" "${ns:0:1}1" || return 1 460 done 461 462 ip netns exec client ip addr add 10.0.0.1/24 dev c1 463 ip netns exec client ip link set c1 up 464 ip netns exec server ip addr add 10.0.0.2/24 dev s1 465 ip netns exec server ip link set s1 up 466 467 ovs_add_flow "test_trunc" trunctest \ 468 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 469 ovs_add_flow "test_trunc" trunctest \ 470 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 471 ovs_add_flow "test_trunc" trunctest \ 472 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ 473 '2' || return 1 474 ovs_add_flow "test_trunc" trunctest \ 475 'in_port(2),eth(),eth_type(0x0800),ipv4()' \ 476 '1' || return 1 477 478 info "verify connectivity without truncation" 479 ovs_sbx "test_trunc" ip netns exec client \ 480 ping -c 1 -W 2 10.0.0.2 || return 1 481 482 # trunc below ETH_HLEN must be rejected by the kernel 483 info "verify trunc(1) is rejected" 484 ovs_add_flow "test_trunc" trunctest \ 485 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ 486 'trunc(1),2' &> /dev/null \ 487 && { info "trunc(1) should be rejected"; return 1; } 488 489 info "verify trunc(13) is rejected" 490 ovs_add_flow "test_trunc" trunctest \ 491 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ 492 'trunc(13),2' &> /dev/null \ 493 && { info "trunc(13) should be rejected"; return 1; } 494 495 ovs_del_flows "test_trunc" trunctest 496 ovs_add_flow "test_trunc" trunctest \ 497 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 498 ovs_add_flow "test_trunc" trunctest \ 499 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 500 501 info "add trunc(14) forwarding flow" 502 ovs_add_flow "test_trunc" trunctest \ 503 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ 504 'trunc(14),2' || return 1 505 ovs_add_flow "test_trunc" trunctest \ 506 'in_port(2),eth(),eth_type(0x0800),ipv4()' \ 507 '1' || return 1 508 509 info "verify ping fails with trunc(14)" 510 ovs_sbx "test_trunc" ip netns exec client \ 511 ping -c 1 -W 2 10.0.0.2 >/dev/null 2>&1 \ 512 && { info "ping should fail with trunc(14)" 513 return 1; } 514 515 ovs_del_flows "test_trunc" trunctest 516 ovs_add_flow "test_trunc" trunctest \ 517 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 518 ovs_add_flow "test_trunc" trunctest \ 519 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 520 ovs_add_flow "test_trunc" trunctest \ 521 'in_port(1),eth(),eth_type(0x0800),ipv4()' \ 522 '2' || return 1 523 ovs_add_flow "test_trunc" trunctest \ 524 'in_port(2),eth(),eth_type(0x0800),ipv4()' \ 525 '1' || return 1 526 527 info "verify connectivity restored" 528 ovs_sbx "test_trunc" ip netns exec client \ 529 ping -c 1 -W 2 10.0.0.2 || return 1 530 531 return 0 532} 533 534# icmpv6 test 535# - static neighbours to bypass NDP (nud permanent) 536# - icmpv6(type=128) echo request, icmpv6(type=129) echo reply 537# - remove flows and verify ping fails, reinstall and recover 538test_icmpv6() { 539 local t="test_icmpv6" 540 local v6="eth_type(0x86dd),ipv6(proto=58)" 541 542 sbx_add "$t" || return $? 543 ovs_add_dp "$t" icmpv6 || return 1 544 545 info "create namespaces" 546 for ns in client server; do 547 ovs_add_netns_and_veths "$t" "icmpv6" \ 548 "$ns" "${ns:0:1}0" "${ns:0:1}1" || return 1 549 done 550 551 ip netns exec client ip addr add fd00::1/64 dev c1 nodad 552 ip netns exec client ip link set c1 up 553 ip netns exec server ip addr add fd00::2/64 dev s1 nodad 554 ip netns exec server ip link set s1 up 555 556 local cl_mac sl_mac 557 cl_mac=$(ip netns exec client ip link show c1 \ 558 | awk '/link\/ether/ {print $2}') 559 [ -z "$cl_mac" ] && \ 560 { info "failed to get c1 hwaddr"; return 1; } 561 sl_mac=$(ip netns exec server ip link show s1 \ 562 | awk '/link\/ether/ {print $2}') 563 [ -z "$sl_mac" ] && \ 564 { info "failed to get s1 hwaddr"; return 1; } 565 ip netns exec client ip -6 neigh add fd00::2 \ 566 lladdr "$sl_mac" nud permanent dev c1 || return 1 567 ip netns exec server ip -6 neigh add fd00::1 \ 568 lladdr "$cl_mac" nud permanent dev s1 || return 1 569 570 # Probe: check if kernel supports icmpv6 flow key. 571 ovs_add_flow "$t" icmpv6 \ 572 "in_port(1),eth(),$v6,icmpv6(type=128)" \ 573 '2' &>/dev/null 574 if [ $? -ne 0 ]; then 575 info "no support for icmpv6 key - skipping" 576 ovs_exit_sig 577 return $ksft_skip 578 fi 579 ovs_del_flows "$t" icmpv6 580 581 ovs_add_flow "$t" icmpv6 \ 582 "in_port(1),eth(),$v6,icmpv6(type=128)" \ 583 '2' || return 1 584 ovs_add_flow "$t" icmpv6 \ 585 "in_port(2),eth(),$v6,icmpv6(type=129)" \ 586 '1' || return 1 587 588 info "verify ICMPv6 echo with type-specific flows" 589 ovs_sbx "$t" ip netns exec client \ 590 ping -6 -c 1 -W 2 fd00::2 || return 1 591 592 ovs_del_flows "$t" icmpv6 593 594 info "verify ping fails without echo flows" 595 ovs_sbx "$t" ip netns exec client \ 596 ping -6 -c 1 -W 2 fd00::2 >/dev/null 2>&1 \ 597 && { info "ping should fail without flows" 598 return 1; } 599 600 ovs_add_flow "$t" icmpv6 \ 601 "in_port(1),eth(),$v6,icmpv6(type=128)" \ 602 '2' || return 1 603 ovs_add_flow "$t" icmpv6 \ 604 "in_port(2),eth(),$v6,icmpv6(type=129)" \ 605 '1' || return 1 606 607 info "verify connectivity restored" 608 ovs_sbx "$t" ip netns exec client \ 609 ping -6 -c 1 -W 2 fd00::2 || return 1 610 611 return 0 612} 613 614# psample test 615# - use psample to observe packets 616test_psample() { 617 sbx_add "test_psample" || return $? 618 619 # Add a datapath with per-vport dispatching. 620 ovs_add_dp "test_psample" psample -V 2:1 || return 1 621 622 info "create namespaces" 623 ovs_add_netns_and_veths "test_psample" "psample" \ 624 client c0 c1 172.31.110.10/24 -u || return 1 625 ovs_add_netns_and_veths "test_psample" "psample" \ 626 server s0 s1 172.31.110.20/24 -u || return 1 627 628 # Check if psample actions can be configured. 629 ovs_add_flow "test_psample" psample \ 630 'in_port(1),eth(),eth_type(0x0806),arp()' 'psample(group=1)' &> /dev/null 631 if [ $? == 1 ]; then 632 info "no support for psample - skipping" 633 ovs_exit_sig 634 return $ksft_skip 635 fi 636 637 ovs_del_flows "test_psample" psample 638 639 # Test action verification. 640 OLDIFS=$IFS 641 IFS='*' 642 min_key='in_port(1),eth(),eth_type(0x0800),ipv4()' 643 for testcase in \ 644 "cookie to large"*"psample(group=1,cookie=1615141312111009080706050403020100)" \ 645 "no group with cookie"*"psample(cookie=abcd)" \ 646 "no group"*"psample()"; 647 do 648 set -- $testcase; 649 ovs_test_flow_fails "test_psample" psample $min_key $2 650 if [ $? == 1 ]; then 651 info "failed - $1" 652 return 1 653 fi 654 done 655 IFS=$OLDIFS 656 657 ovs_del_flows "test_psample" psample 658 # Allow ARP 659 ovs_add_flow "test_psample" psample \ 660 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 661 ovs_add_flow "test_psample" psample \ 662 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 663 664 # Sample first 14 bytes of all traffic. 665 ovs_add_flow "test_psample" psample \ 666 "in_port(1),eth(),eth_type(0x0800),ipv4()" \ 667 "trunc(14),psample(group=1,cookie=c0ffee),2" 668 669 # Sample all traffic. In this case, use a sample() action with both 670 # psample and an upcall emulating simultaneous local sampling and 671 # sFlow / IPFIX. 672 nlpid=$(grep -E "listening on upcall packet handler" \ 673 $ovs_dir/s0.out | cut -d ":" -f 2 | tr -d ' ') 674 [ -z "$nlpid" ] && \ 675 { info "failed to get upcall PID"; return 1; } 676 677 ovs_add_flow "test_psample" psample \ 678 "in_port(2),eth(),eth_type(0x0800),ipv4()" \ 679 "sample(sample=100%,actions(psample(group=2,cookie=eeff0c),userspace(pid=${nlpid},userdata=eeff0c))),1" 680 681 # Record psample data. 682 ovs_spawn_daemon "test_psample" python3 $ovs_base/ovs-dpctl.py psample-events 683 ovs_wait grep -q "listening for psample events" ${ovs_dir}/stdout 684 685 # Send a single ping. 686 ovs_sbx "test_psample" ip netns exec client ping -I c1 172.31.110.20 -c 1 || return 1 687 688 # We should have received one userspace action upcall and 2 psample packets. 689 ovs_wait grep -q "userspace action command" $ovs_dir/s0.out || return 1 690 691 # client -> server samples should only contain the first 14 bytes of the packet. 692 ovs_wait grep -qE "rate:4294967295,group:1,cookie:c0ffee data:[0-9a-f]{28}$" \ 693 $ovs_dir/stdout || return 1 694 695 ovs_wait grep -q "rate:4294967295,group:2,cookie:eeff0c" $ovs_dir/stdout || return 1 696 697 return 0 698} 699 700# drop_reason test 701# - drop packets and verify the right drop reason is reported 702test_drop_reason() { 703 which perf >/dev/null 2>&1 || return $ksft_skip 704 which pahole >/dev/null 2>&1 || return $ksft_skip 705 706 ovs_drop_subsys=$(pahole -C skb_drop_reason_subsys | 707 awk '/OPENVSWITCH/ { print $3; }' | 708 tr -d ,) 709 if [ -z "$ovs_drop_subsys" ]; then 710 info "failed to get OVS drop subsys ID" 711 return $ksft_skip 712 fi 713 714 sbx_add "test_drop_reason" || return $? 715 716 ovs_add_dp "test_drop_reason" dropreason || return 1 717 718 info "create namespaces" 719 for ns in client server; do 720 ovs_add_netns_and_veths "test_drop_reason" "dropreason" "$ns" \ 721 "${ns:0:1}0" "${ns:0:1}1" || return 1 722 done 723 724 # Setup client namespace 725 ip netns exec client ip addr add 172.31.110.10/24 dev c1 726 ip netns exec client ip link set c1 up 727 728 # Setup server namespace 729 ip netns exec server ip addr add 172.31.110.20/24 dev s1 730 ip netns exec server ip link set s1 up 731 732 # Check if drop reasons can be sent 733 ovs_add_flow "test_drop_reason" dropreason \ 734 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(10)' 2>/dev/null 735 if [ $? == 1 ]; then 736 info "no support for drop reasons - skipping" 737 ovs_exit_sig 738 return $ksft_skip 739 fi 740 741 ovs_del_flows "test_drop_reason" dropreason 742 743 # Allow ARP 744 ovs_add_flow "test_drop_reason" dropreason \ 745 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 746 ovs_add_flow "test_drop_reason" dropreason \ 747 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 748 749 # Allow client ICMP traffic but drop return path 750 ovs_add_flow "test_drop_reason" dropreason \ 751 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=1),icmp()" '2' 752 ovs_add_flow "test_drop_reason" dropreason \ 753 "in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,proto=1),icmp()" 'drop' 754 755 ovs_drop_record_and_run "test_drop_reason" ip netns exec client ping -c 2 172.31.110.20 756 ovs_drop_reason_count 0x${ovs_drop_subsys}0001 # OVS_DROP_FLOW_ACTION 757 if [[ "$?" -ne "2" ]]; then 758 info "Did not detect expected drops: $?" 759 return 1 760 fi 761 762 # Drop UDP 6000 traffic with an explicit action and an error code. 763 ovs_add_flow "test_drop_reason" dropreason \ 764 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=6000)" \ 765 'drop(42)' 766 # Drop UDP 7000 traffic with an explicit action with no error code. 767 ovs_add_flow "test_drop_reason" dropreason \ 768 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=7000)" \ 769 'drop(0)' 770 771 ovs_drop_record_and_run \ 772 "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000 773 ovs_drop_reason_count 0x${ovs_drop_subsys}0004 # OVS_DROP_EXPLICIT_ACTION_ERROR 774 if [[ "$?" -ne "1" ]]; then 775 info "Did not detect expected explicit error drops: $?" 776 return 1 777 fi 778 779 ovs_drop_record_and_run \ 780 "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000 781 ovs_drop_reason_count 0x${ovs_drop_subsys}0003 # OVS_DROP_EXPLICIT_ACTION 782 if [[ "$?" -ne "1" ]]; then 783 info "Did not detect expected explicit drops: $?" 784 return 1 785 fi 786 787 return 0 788} 789 790# arp_ping test 791# - client has 1500 byte MTU 792# - server has 1500 byte MTU 793# - send ARP ping between two ns 794test_arp_ping () { 795 796 which arping >/dev/null 2>&1 || return $ksft_skip 797 798 sbx_add "test_arp_ping" || return $? 799 800 ovs_add_dp "test_arp_ping" arpping || return 1 801 802 info "create namespaces" 803 for ns in client server; do 804 ovs_add_netns_and_veths "test_arp_ping" "arpping" "$ns" \ 805 "${ns:0:1}0" "${ns:0:1}1" || return 1 806 done 807 808 # Setup client namespace 809 ip netns exec client ip addr add 172.31.110.10/24 dev c1 810 ip netns exec client ip link set c1 up 811 HW_CLIENT=$(ip netns exec client ip link show dev c1 \ 812 | awk '/link\/ether/ {print $2}') 813 [ -z "$HW_CLIENT" ] && \ 814 { info "failed to get client hwaddr"; return 1; } 815 info "Client hwaddr: $HW_CLIENT" 816 817 # Setup server namespace 818 ip netns exec server ip addr add 172.31.110.20/24 dev s1 819 ip netns exec server ip link set s1 up 820 HW_SERVER=$(ip netns exec server ip link show dev s1 \ 821 | awk '/link\/ether/ {print $2}') 822 [ -z "$HW_SERVER" ] && \ 823 { info "failed to get server hwaddr"; return 1; } 824 info "Server hwaddr: $HW_SERVER" 825 826 ovs_add_flow "test_arp_ping" arpping \ 827 "in_port(1),eth(),eth_type(0x0806),arp(sip=172.31.110.10,tip=172.31.110.20,sha=$HW_CLIENT,tha=ff:ff:ff:ff:ff:ff)" '2' || return 1 828 ovs_add_flow "test_arp_ping" arpping \ 829 "in_port(2),eth(),eth_type(0x0806),arp()" '1' || return 1 830 831 ovs_sbx "test_arp_ping" ip netns exec client arping -I c1 172.31.110.20 -c 1 || return 1 832 833 return 0 834} 835 836# ct_connect_v4 test 837# - client has 1500 byte MTU 838# - server has 1500 byte MTU 839# - use ICMP to ping in each direction 840# - only allow CT state stuff to pass through new in c -> s 841test_ct_connect_v4 () { 842 843 which nc >/dev/null 2>/dev/null || return $ksft_skip 844 845 sbx_add "test_ct_connect_v4" || return $? 846 847 ovs_add_dp "test_ct_connect_v4" ct4 || return 1 848 info "create namespaces" 849 for ns in client server; do 850 ovs_add_netns_and_veths "test_ct_connect_v4" "ct4" "$ns" \ 851 "${ns:0:1}0" "${ns:0:1}1" || return 1 852 done 853 854 ip netns exec client ip addr add 172.31.110.10/24 dev c1 855 ip netns exec client ip link set c1 up 856 ip netns exec server ip addr add 172.31.110.20/24 dev s1 857 ip netns exec server ip link set s1 up 858 859 # Add forwarding for ARP and ip packets - completely wildcarded 860 ovs_add_flow "test_ct_connect_v4" ct4 \ 861 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 862 ovs_add_flow "test_ct_connect_v4" ct4 \ 863 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 864 ovs_add_flow "test_ct_connect_v4" ct4 \ 865 'ct_state(-trk),eth(),eth_type(0x0800),ipv4()' \ 866 'ct(commit),recirc(0x1)' || return 1 867 ovs_add_flow "test_ct_connect_v4" ct4 \ 868 'recirc_id(0x1),ct_state(+trk+new),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \ 869 '2' || return 1 870 ovs_add_flow "test_ct_connect_v4" ct4 \ 871 'recirc_id(0x1),ct_state(+trk+est),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \ 872 '2' || return 1 873 ovs_add_flow "test_ct_connect_v4" ct4 \ 874 'recirc_id(0x1),ct_state(+trk+est),in_port(2),eth(),eth_type(0x0800),ipv4(dst=172.31.110.10)' \ 875 '1' || return 1 876 ovs_add_flow "test_ct_connect_v4" ct4 \ 877 'recirc_id(0x1),ct_state(+trk+inv),eth(),eth_type(0x0800),ipv4()' 'drop' || \ 878 return 1 879 880 # do a ping 881 ovs_sbx "test_ct_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1 882 883 # create an echo server in 'server' 884 echo "server" | \ 885 ovs_netns_spawn_daemon "test_ct_connect_v4" "server" \ 886 nc -lvnp 4443 887 ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.20 4443 || return 1 888 889 # Now test in the other direction (should fail) 890 echo "client" | \ 891 ovs_netns_spawn_daemon "test_ct_connect_v4" "client" \ 892 nc -lvnp 4443 893 ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443 894 if [ $? == 0 ]; then 895 info "ct connect to client was successful" 896 return 1 897 fi 898 899 info "done..." 900 return 0 901} 902 903# connect_v4 test 904# - client has 1500 byte MTU 905# - server has 1500 byte MTU 906# - use ICMP to ping in each direction 907test_connect_v4 () { 908 909 sbx_add "test_connect_v4" || return $? 910 911 ovs_add_dp "test_connect_v4" cv4 || return 1 912 913 info "create namespaces" 914 for ns in client server; do 915 ovs_add_netns_and_veths "test_connect_v4" "cv4" "$ns" \ 916 "${ns:0:1}0" "${ns:0:1}1" || return 1 917 done 918 919 920 ip netns exec client ip addr add 172.31.110.10/24 dev c1 921 ip netns exec client ip link set c1 up 922 ip netns exec server ip addr add 172.31.110.20/24 dev s1 923 ip netns exec server ip link set s1 up 924 925 # Add forwarding for ARP and ip packets - completely wildcarded 926 ovs_add_flow "test_connect_v4" cv4 \ 927 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 928 ovs_add_flow "test_connect_v4" cv4 \ 929 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 930 ovs_add_flow "test_connect_v4" cv4 \ 931 'in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' '2' || return 1 932 ovs_add_flow "test_connect_v4" cv4 \ 933 'in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20)' '1' || return 1 934 935 # do a ping 936 ovs_sbx "test_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1 937 938 info "done..." 939 return 0 940} 941 942# nat_connect_v4 test 943# - client has 1500 byte MTU 944# - server has 1500 byte MTU 945# - use ICMP to ping in each direction 946# - only allow CT state stuff to pass through new in c -> s 947test_nat_connect_v4 () { 948 which nc >/dev/null 2>/dev/null || return $ksft_skip 949 950 sbx_add "test_nat_connect_v4" || return $? 951 952 ovs_add_dp "test_nat_connect_v4" nat4 || return 1 953 info "create namespaces" 954 for ns in client server; do 955 ovs_add_netns_and_veths "test_nat_connect_v4" "nat4" "$ns" \ 956 "${ns:0:1}0" "${ns:0:1}1" || return 1 957 done 958 959 ip netns exec client ip addr add 172.31.110.10/24 dev c1 960 ip netns exec client ip link set c1 up 961 ip netns exec server ip addr add 172.31.110.20/24 dev s1 962 ip netns exec server ip link set s1 up 963 964 ip netns exec client ip route add default via 172.31.110.20 965 966 ovs_add_flow "test_nat_connect_v4" nat4 \ 967 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 968 ovs_add_flow "test_nat_connect_v4" nat4 \ 969 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 970 ovs_add_flow "test_nat_connect_v4" nat4 \ 971 "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20)" \ 972 "ct(commit,nat(dst=172.31.110.20)),recirc(0x1)" 973 ovs_add_flow "test_nat_connect_v4" nat4 \ 974 "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \ 975 "ct(commit,nat),recirc(0x2)" 976 977 ovs_add_flow "test_nat_connect_v4" nat4 \ 978 "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" "2" 979 ovs_add_flow "test_nat_connect_v4" nat4 \ 980 "recirc_id(0x2),ct_state(+trk-inv),in_port(2),eth(),eth_type(0x0800),ipv4()" "1" 981 982 # do a ping 983 ovs_sbx "test_nat_connect_v4" ip netns exec client ping 192.168.0.20 -c 3 || return 1 984 985 # create an echo server in 'server' 986 echo "server" | \ 987 ovs_netns_spawn_daemon "test_nat_connect_v4" "server" \ 988 nc -lvnp 4443 989 ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 192.168.0.20 4443 || return 1 990 991 # Now test in the other direction (should fail) 992 echo "client" | \ 993 ovs_netns_spawn_daemon "test_nat_connect_v4" "client" \ 994 nc -lvnp 4443 995 ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443 996 if [ $? == 0 ]; then 997 info "connect to client was successful" 998 return 1 999 fi 1000 1001 info "done..." 1002 return 0 1003} 1004 1005# nat_related_v4 test 1006# - client->server ip packets go via SNAT 1007# - client solicits ICMP destination unreachable packet from server 1008# - undo NAT for ICMP reply and test dst ip has been updated 1009test_nat_related_v4 () { 1010 which nc >/dev/null 2>/dev/null || return $ksft_skip 1011 1012 sbx_add "test_nat_related_v4" || return $? 1013 1014 ovs_add_dp "test_nat_related_v4" natrelated4 || return 1 1015 info "create namespaces" 1016 for ns in client server; do 1017 ovs_add_netns_and_veths "test_nat_related_v4" "natrelated4" "$ns" \ 1018 "${ns:0:1}0" "${ns:0:1}1" || return 1 1019 done 1020 1021 ip netns exec client ip addr add 172.31.110.10/24 dev c1 1022 ip netns exec client ip link set c1 up 1023 ip netns exec server ip addr add 172.31.110.20/24 dev s1 1024 ip netns exec server ip link set s1 up 1025 1026 ip netns exec server ip route add 192.168.0.20/32 via 172.31.110.10 1027 1028 # Allow ARP 1029 ovs_add_flow "test_nat_related_v4" natrelated4 \ 1030 "in_port(1),eth(),eth_type(0x0806),arp()" "2" || return 1 1031 ovs_add_flow "test_nat_related_v4" natrelated4 \ 1032 "in_port(2),eth(),eth_type(0x0806),arp()" "1" || return 1 1033 1034 # Allow IP traffic from client->server, rewrite source IP with SNAT to 192.168.0.20 1035 ovs_add_flow "test_nat_related_v4" natrelated4 \ 1036 "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=172.31.110.20)" \ 1037 "ct(commit,nat(src=192.168.0.20)),recirc(0x1)" || return 1 1038 ovs_add_flow "test_nat_related_v4" natrelated4 \ 1039 "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" \ 1040 "2" || return 1 1041 1042 # Allow related ICMP responses back from server and undo NAT to restore original IP 1043 # Drop any ICMP related packets where dst ip hasn't been restored back to original IP 1044 ovs_add_flow "test_nat_related_v4" natrelated4 \ 1045 "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \ 1046 "ct(commit,nat),recirc(0x2)" || return 1 1047 ovs_add_flow "test_nat_related_v4" natrelated4 \ 1048 "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()" \ 1049 "1" || return 1 1050 ovs_add_flow "test_nat_related_v4" natrelated4 \ 1051 "recirc_id(0x2),ct_state(+rel+trk),in_port(2),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20,proto=1),icmp()" \ 1052 "drop" || return 1 1053 1054 # Solicit destination unreachable response from server 1055 ovs_sbx "test_nat_related_v4" ip netns exec client \ 1056 bash -c "echo a | nc -u -w 1 172.31.110.20 10000" 1057 1058 # Check to make sure no packets matched the drop rule with incorrect dst ip 1059 python3 "$ovs_base/ovs-dpctl.py" dump-flows natrelated4 \ 1060 | grep "drop" | grep "packets:0" >/dev/null || return 1 1061 1062 info "done..." 1063 return 0 1064} 1065 1066# netlink_validation 1067# - Create a dp 1068# - check no warning with "old version" simulation 1069test_netlink_checks () { 1070 sbx_add "test_netlink_checks" || return 1 1071 1072 info "setting up new DP" 1073 ovs_add_dp "test_netlink_checks" nv0 || return 1 1074 # now try again 1075 PRE_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+") 1076 ovs_add_dp "test_netlink_checks" nv0 -V 0 || return 1 1077 POST_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+") 1078 if [ "$PRE_TEST" != "$POST_TEST" ]; then 1079 info "failed - gen warning" 1080 return 1 1081 fi 1082 1083 ovs_add_netns_and_veths "test_netlink_checks" nv0 left left0 l0 || \ 1084 return 1 1085 ovs_add_netns_and_veths "test_netlink_checks" nv0 right right0 r0 || \ 1086 return 1 1087 [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ 1088 wc -l) == 3 ] || \ 1089 return 1 1090 ovs_del_if "test_netlink_checks" nv0 right0 || return 1 1091 [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ 1092 wc -l) == 2 ] || \ 1093 return 1 1094 1095 info "Checking clone depth" 1096 ERR_MSG="Flow actions may not be safe on all matching packets" 1097 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 1098 ovs_add_flow "test_netlink_checks" nv0 \ 1099 'in_port(1),eth(),eth_type(0x800),ipv4()' \ 1100 'clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(clone(drop)))))))))))))))))' \ 1101 >/dev/null 2>&1 && return 1 1102 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 1103 1104 if [ "$PRE_TEST" == "$POST_TEST" ]; then 1105 info "failed - clone depth too large" 1106 return 1 1107 fi 1108 1109 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 1110 ovs_add_flow "test_netlink_checks" nv0 \ 1111 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \ 1112 &> /dev/null && return 1 1113 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 1114 if [ "$PRE_TEST" == "$POST_TEST" ]; then 1115 info "failed - error not generated" 1116 return 1 1117 fi 1118 return 0 1119} 1120 1121test_upcall_interfaces() { 1122 sbx_add "test_upcall_interfaces" || return 1 1123 1124 info "setting up new DP" 1125 ovs_add_dp "test_upcall_interfaces" ui0 -V 2:1 || return 1 1126 1127 ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \ 1128 172.31.110.1/24 -u || return 1 1129 1130 ovs_wait grep -q "listening on upcall packet handler" ${ovs_dir}/left0.out 1131 1132 info "sending arping" 1133 ip netns exec upc arping -I l0 172.31.110.20 -c 1 \ 1134 >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr 1135 1136 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 1137 return 0 1138} 1139 1140ovs_add_kernel_tunnel() { 1141 local sbxname=$1; shift 1142 local ns=$1; shift 1143 local tnl_type=$1; shift 1144 local name=$1; shift 1145 local addr=$1; shift 1146 1147 info "setting up kernel ${tnl_type} tunnel ${name}" 1148 ovs_sbx "${sbxname}" ip -netns ${ns} link add dev ${name} type ${tnl_type} $* || return 1 1149 on_exit "ovs_sbx ${sbxname} ip -netns ${ns} link del ${name} >/dev/null 2>&1" 1150 ovs_sbx "${sbxname}" ip -netns ${ns} addr add dev ${name} ${addr} || return 1 1151 ovs_sbx "${sbxname}" ip -netns ${ns} link set dev ${name} mtu 1450 up || return 1 1152} 1153 1154test_tunnel_metadata() { 1155 which arping >/dev/null 2>&1 || return $ksft_skip 1156 1157 sbxname="test_tunnel_metadata" 1158 sbx_add "${sbxname}" || return 1 1159 1160 info "setting up new DP" 1161 ovs_add_dp "${sbxname}" tdp0 -V 2:1 || return 1 1162 1163 ovs_add_netns_and_veths "${sbxname}" tdp0 tns left0 l0 \ 1164 172.31.110.1/24 || return 1 1165 1166 info "removing veth interface from openvswitch and setting IP" 1167 ovs_del_if "${sbxname}" tdp0 left0 || return 1 1168 ovs_sbx "${sbxname}" ip addr add 172.31.110.2/24 dev left0 || return 1 1169 ovs_sbx "${sbxname}" ip link set left0 up || return 1 1170 1171 info "setting up tunnel port in openvswitch" 1172 ovs_add_if "${sbxname}" "vxlan" tdp0 ovs-vxlan0 -u || return 1 1173 on_exit "ovs_sbx ${sbxname} ip link del ovs-vxlan0" 1174 ovs_wait ip link show ovs-vxlan0 &>/dev/null || return 1 1175 ovs_sbx "${sbxname}" ip link set ovs-vxlan0 up || return 1 1176 1177 configs=$(echo ' 1178 1 172.31.221.1/24 1155332 32 set udpcsum flags\(df\|csum\) 1179 2 172.31.222.1/24 1234567 45 set noudpcsum flags\(df\) 1180 3 172.31.223.1/24 1020304 23 unset udpcsum flags\(csum\) 1181 4 172.31.224.1/24 1357986 15 unset noudpcsum' | sed '/^$/d') 1182 1183 while read -r i addr id ttl df csum flags; do 1184 ovs_add_kernel_tunnel "${sbxname}" tns vxlan vxlan${i} ${addr} \ 1185 remote 172.31.110.2 id ${id} dstport 4789 \ 1186 ttl ${ttl} df ${df} ${csum} || return 1 1187 done <<< "${configs}" 1188 1189 ovs_wait grep -q 'listening on upcall packet handler' \ 1190 ${ovs_dir}/ovs-vxlan0.out || return 1 1191 1192 info "sending arping" 1193 for i in 1 2 3 4; do 1194 ovs_sbx "${sbxname}" ip netns exec tns \ 1195 arping -I vxlan${i} 172.31.22${i}.2 -c 1 \ 1196 >${ovs_dir}/arping.stdout 2>${ovs_dir}/arping.stderr 1197 done 1198 1199 info "checking that received decapsulated packets carry correct metadata" 1200 while read -r i addr id ttl df csum flags; do 1201 arp_hdr="arp\\(sip=172.31.22${i}.1,tip=172.31.22${i}.2,op=1,sha=" 1202 addrs="src=172.31.110.1,dst=172.31.110.2" 1203 ports="tp_src=[0-9]*,tp_dst=4789" 1204 tnl_md="tunnel\\(tun_id=${id},${addrs},ttl=${ttl},${ports},${flags}\\)" 1205 1206 ovs_sbx "${sbxname}" grep -qE "MISS upcall.*${tnl_md}.*${arp_hdr}" \ 1207 ${ovs_dir}/ovs-vxlan0.out || return 1 1208 done <<< "${configs}" 1209 1210 return 0 1211} 1212 1213test_tunnel_refcount() { 1214 sbxname="test_tunnel_refcount" 1215 sbx_add "${sbxname}" || return 1 1216 1217 ovs_sbx "${sbxname}" ip netns add trefns || return 1 1218 on_exit "ovs_sbx ${sbxname} ip netns del trefns" 1219 1220 for tun_type in gre vxlan geneve; do 1221 info "testing ${tun_type} tunnel vport refcount" 1222 1223 ovs_sbx "${sbxname}" ip netns exec trefns \ 1224 python3 $ovs_base/ovs-dpctl.py \ 1225 add-dp dp-${tun_type} || return 1 1226 1227 ovs_sbx "${sbxname}" ip netns exec trefns \ 1228 python3 $ovs_base/ovs-dpctl.py \ 1229 add-if --no-lwt -t ${tun_type} \ 1230 dp-${tun_type} ovs-${tun_type}0 || return 1 1231 1232 ovs_wait ip -netns trefns link show \ 1233 ovs-${tun_type}0 >/dev/null 2>&1 || return 1 1234 1235 info "deleting dp - may hang if reference counting is broken" 1236 ovs_sbx "${sbxname}" ip netns exec trefns \ 1237 python3 $ovs_base/ovs-dpctl.py \ 1238 del-dp dp-${tun_type} & 1239 1240 dev_removed() { 1241 ! ip -netns trefns link show "$1" >/dev/null 2>&1 1242 } 1243 ovs_wait dev_removed dp-${tun_type} || return 1 1244 ovs_wait dev_removed ovs-${tun_type}0 || return 1 1245 done 1246 1247 return 0 1248} 1249 1250test_pop_vlan() { 1251 local sbx="test_pop_vlan" 1252 sbx_add "$sbx" || return $? 1253 ovs_add_dp "$sbx" vlandp || return 1 1254 1255 ovs_add_netns_and_veths "$sbx" vlandp \ 1256 ns1 veth1 ns1veth 192.0.2.1/24 || return 1 1257 ovs_add_netns_and_veths "$sbx" vlandp \ 1258 ns2 veth2 ns2veth 192.0.2.2/24 || return 1 1259 1260 # Baseline: untagged bidirectional forwarding 1261 ovs_add_flow "$sbx" vlandp \ 1262 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 1263 ovs_add_flow "$sbx" vlandp \ 1264 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 1265 ovs_add_flow "$sbx" vlandp \ 1266 'in_port(1),eth(),eth_type(0x0800),ipv4()' '2' || return 1 1267 ovs_add_flow "$sbx" vlandp \ 1268 'in_port(2),eth(),eth_type(0x0800),ipv4()' '1' || return 1 1269 ovs_sbx "$sbx" ip netns exec ns1 ping -c 3 -W 2 \ 1270 192.0.2.2 || return 1 1271 1272 # VLAN topology: ns1 uses VLAN sub-interface, ns2 is plain 1273 ip -n ns1 link add link ns1veth name ns1veth.10 \ 1274 type vlan id 10 || return 1 1275 on_exit "ip -n ns1 link del ns1veth.10 2>/dev/null" 1276 ip -n ns1 addr add 198.51.100.1/24 dev ns1veth.10 || return 1 1277 ip -n ns1 link set ns1veth.10 up || return 1 1278 ip -n ns2 addr add 198.51.100.2/24 dev ns2veth || return 1 1279 1280 ovs_del_flows "$sbx" vlandp 1281 1282 # Static ARP: avoids VLAN-tagged ARP complexity 1283 local ns1veth10mac ns2mac 1284 ns1veth10mac=$(ip -n ns1 link show ns1veth.10 \ 1285 | awk '/link\/ether/ {print $2}') 1286 [ -z "$ns1veth10mac" ] && \ 1287 { info "failed to get ns1veth10mac"; return 1; } 1288 ns2mac=$(ip -n ns2 link show ns2veth \ 1289 | awk '/link\/ether/ {print $2}') 1290 [ -z "$ns2mac" ] && \ 1291 { info "failed to get ns2mac"; return 1; } 1292 ip -n ns1 neigh replace 198.51.100.2 lladdr "$ns2mac" \ 1293 dev ns1veth.10 nud permanent || return 1 1294 ip -n ns2 neigh replace 198.51.100.1 \ 1295 lladdr "$ns1veth10mac" \ 1296 dev ns2veth nud permanent || return 1 1297 1298 local vlan_match='in_port(1),eth(),eth_type(0x8100),' 1299 vlan_match+='vlan(vid=10),' 1300 vlan_match+='encap(eth_type(0x0800),' 1301 vlan_match+='ipv4(src=198.51.100.1,proto=1),icmp())' 1302 1303 # Negative: forward without pop_vlan -- tagged frame 1304 # is invisible to ns2 (no VLAN sub-interface), ping fails 1305 ovs_add_flow "$sbx" vlandp "$vlan_match" '2' || return 1 1306 ovs_sbx "$sbx" ip netns exec ns1 ping -I ns1veth.10 \ 1307 -c 3 -W 1 198.51.100.2 >/dev/null 2>&1 \ 1308 && { info "FAIL: ping should fail without pop_vlan" 1309 return 1; } 1310 1311 ovs_del_flows "$sbx" vlandp 1312 1313 # Positive: pop_vlan strips tag on forward path, 1314 # push_vlan restores tag on return path -- ping succeeds 1315 ovs_add_flow "$sbx" vlandp \ 1316 "$vlan_match" 'pop_vlan,2' || return 1 1317 ovs_add_flow "$sbx" vlandp \ 1318 'in_port(2),eth(),eth_type(0x0800),ipv4()' \ 1319 'push_vlan(vid=10,pcp=0,tpid=0x8100),1' || return 1 1320 ovs_sbx "$sbx" ip netns exec ns1 ping -I ns1veth.10 \ 1321 -c 3 -W 2 198.51.100.2 || return 1 1322 1323 return 0 1324} 1325 1326run_test() { 1327 ( 1328 tname="$1" 1329 tdesc="$2" 1330 1331 if python3 ovs-dpctl.py -h 2>&1 | \ 1332 grep -E "Need to (install|upgrade) the python" >/dev/null 2>&1; then 1333 stdbuf -o0 printf "TEST: %-60s [PYLIB]\n" "${tdesc}" 1334 return $ksft_skip 1335 fi 1336 1337 python3 ovs-dpctl.py show >/dev/null 2>&1 || \ 1338 echo "[DPCTL] show exception." 1339 1340 if ! lsmod | grep openvswitch >/dev/null 2>&1; then 1341 stdbuf -o0 printf "TEST: %-60s [NOMOD]\n" "${tdesc}" 1342 return $ksft_skip 1343 fi 1344 1345 printf "TEST: %-60s [START]\n" "${tname}" 1346 1347 unset IFS 1348 1349 eval test_${tname} 1350 ret=$? 1351 1352 if [ $ret -eq 0 ]; then 1353 printf "TEST: %-60s [ OK ]\n" "${tdesc}" 1354 ovs_exit_sig 1355 rm -rf "$ovs_dir" 1356 elif [ $ret -eq 1 ]; then 1357 printf "TEST: %-60s [FAIL]\n" "${tdesc}" 1358 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then 1359 echo 1360 echo "Pausing. Logs in $ovs_dir/. Hit enter to continue" 1361 read a 1362 fi 1363 ovs_exit_sig 1364 [ "${PAUSE_ON_FAIL}" = "yes" ] || rm -rf "$ovs_dir" 1365 exit 1 1366 elif [ $ret -eq $ksft_skip ]; then 1367 printf "TEST: %-60s [SKIP]\n" "${tdesc}" 1368 elif [ $ret -eq 2 ]; then 1369 rm -rf test_${tname} 1370 run_test "$1" "$2" 1371 fi 1372 1373 return $ret 1374 ) 1375 ret=$? 1376 case $ret in 1377 0) 1378 [ $all_skipped = true ] && [ $exitcode=$ksft_skip ] && exitcode=0 1379 all_skipped=false 1380 ;; 1381 $ksft_skip) 1382 [ $all_skipped = true ] && exitcode=$ksft_skip 1383 ;; 1384 *) 1385 all_skipped=false 1386 exitcode=1 1387 ;; 1388 esac 1389 1390 return $ret 1391} 1392 1393 1394exitcode=0 1395desc=0 1396all_skipped=true 1397 1398while getopts :pvt o 1399do 1400 case $o in 1401 p) PAUSE_ON_FAIL=yes;; 1402 v) VERBOSE=1;; 1403 t) if which tcpdump > /dev/null 2>&1; then 1404 TRACING=1 1405 else 1406 echo "=== tcpdump not available, tracing disabled" 1407 fi 1408 ;; 1409 *) usage;; 1410 esac 1411done 1412shift $(($OPTIND-1)) 1413 1414IFS=" 1415" 1416 1417for arg do 1418 # Check first that all requested tests are available before running any 1419 command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; } 1420done 1421 1422name="" 1423desc="" 1424for t in ${tests}; do 1425 [ "${name}" = "" ] && name="${t}" && continue 1426 [ "${desc}" = "" ] && desc="${t}" 1427 1428 run_this=1 1429 for arg do 1430 [ "${arg}" != "${arg#--*}" ] && continue 1431 [ "${arg}" = "${name}" ] && run_this=1 && break 1432 run_this=0 1433 done 1434 if [ $run_this -eq 1 ]; then 1435 run_test "${name}" "${desc}" 1436 fi 1437 name="" 1438 desc="" 1439done 1440 1441exit ${exitcode} 1442