1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0 3# 4# OVS kernel module self tests 5 6# Kselftest framework requirement - SKIP code is 4. 7ksft_skip=4 8 9PAUSE_ON_FAIL=no 10VERBOSE=0 11TRACING=0 12 13tests=" 14 arp_ping eth-arp: Basic arp ping between two NS 15 ct_connect_v4 ip4-ct-xon: Basic ipv4 tcp connection using ct 16 connect_v4 ip4-xon: Basic ipv4 ping between two NS 17 nat_connect_v4 ip4-nat-xon: Basic ipv4 tcp connection via NAT 18 netlink_checks ovsnl: validate netlink attrs and settings 19 upcall_interfaces ovs: test the upcall interfaces 20 drop_reason drop: test drop reasons are emitted" 21 22info() { 23 [ $VERBOSE = 0 ] || echo $* 24} 25 26ovs_base=`pwd` 27sbxs= 28sbx_add () { 29 info "adding sandbox '$1'" 30 31 sbxs="$sbxs $1" 32 33 NO_BIN=0 34 35 # Create sandbox. 36 local d="$ovs_base"/$1 37 if [ -e $d ]; then 38 info "removing $d" 39 rm -rf "$d" 40 fi 41 mkdir "$d" || return 1 42 ovs_setenv $1 43} 44 45ovs_exit_sig() { 46 [ -e ${ovs_dir}/cleanup ] && . "$ovs_dir/cleanup" 47} 48 49on_exit() { 50 echo "$1" > ${ovs_dir}/cleanup.tmp 51 cat ${ovs_dir}/cleanup >> ${ovs_dir}/cleanup.tmp 52 mv ${ovs_dir}/cleanup.tmp ${ovs_dir}/cleanup 53} 54 55ovs_setenv() { 56 sandbox=$1 57 58 ovs_dir=$ovs_base${1:+/$1}; export ovs_dir 59 60 test -e ${ovs_dir}/cleanup || : > ${ovs_dir}/cleanup 61} 62 63ovs_sbx() { 64 if test "X$2" != X; then 65 (ovs_setenv $1; shift; "$@" >> ${ovs_dir}/debug.log) 66 else 67 ovs_setenv $1 68 fi 69} 70 71ovs_add_dp () { 72 info "Adding DP/Bridge IF: sbx:$1 dp:$2 {$3, $4, $5}" 73 sbxname="$1" 74 shift 75 ovs_sbx "$sbxname" python3 $ovs_base/ovs-dpctl.py add-dp $* 76 on_exit "ovs_sbx $sbxname python3 $ovs_base/ovs-dpctl.py del-dp $1;" 77} 78 79ovs_add_if () { 80 info "Adding IF to DP: br:$2 if:$3" 81 if [ "$4" != "-u" ]; then 82 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-if "$2" "$3" \ 83 || return 1 84 else 85 python3 $ovs_base/ovs-dpctl.py add-if \ 86 -u "$2" "$3" >$ovs_dir/$3.out 2>$ovs_dir/$3.err & 87 pid=$! 88 on_exit "ovs_sbx $1 kill -TERM $pid 2>/dev/null" 89 fi 90} 91 92ovs_del_if () { 93 info "Deleting IF from DP: br:$2 if:$3" 94 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py del-if "$2" "$3" || return 1 95} 96 97ovs_netns_spawn_daemon() { 98 sbx=$1 99 shift 100 netns=$1 101 shift 102 info "spawning cmd: $*" 103 ip netns exec $netns $* >> $ovs_dir/stdout 2>> $ovs_dir/stderr & 104 pid=$! 105 ovs_sbx "$sbx" on_exit "kill -TERM $pid 2>/dev/null" 106} 107 108ovs_add_netns_and_veths () { 109 info "Adding netns attached: sbx:$1 dp:$2 {$3, $4, $5}" 110 ovs_sbx "$1" ip netns add "$3" || return 1 111 on_exit "ovs_sbx $1 ip netns del $3" 112 ovs_sbx "$1" ip link add "$4" type veth peer name "$5" || return 1 113 on_exit "ovs_sbx $1 ip link del $4 >/dev/null 2>&1" 114 ovs_sbx "$1" ip link set "$4" up || return 1 115 ovs_sbx "$1" ip link set "$5" netns "$3" || return 1 116 ovs_sbx "$1" ip netns exec "$3" ip link set "$5" up || return 1 117 118 if [ "$6" != "" ]; then 119 ovs_sbx "$1" ip netns exec "$3" ip addr add "$6" dev "$5" \ 120 || return 1 121 fi 122 123 if [ "$7" != "-u" ]; then 124 ovs_add_if "$1" "$2" "$4" || return 1 125 else 126 ovs_add_if "$1" "$2" "$4" -u || return 1 127 fi 128 129 [ $TRACING -eq 1 ] && ovs_netns_spawn_daemon "$1" "$ns" \ 130 tcpdump -i any -s 65535 131 132 return 0 133} 134 135ovs_add_flow () { 136 info "Adding flow to DP: sbx:$1 br:$2 flow:$3 act:$4" 137 ovs_sbx "$1" python3 $ovs_base/ovs-dpctl.py add-flow "$2" "$3" "$4" 138 if [ $? -ne 0 ]; then 139 echo "Flow [ $3 : $4 ] failed" >> ${ovs_dir}/debug.log 140 return 1 141 fi 142 return 0 143} 144 145ovs_drop_record_and_run () { 146 local sbx=$1 147 shift 148 149 perf record -a -q -e skb:kfree_skb -o ${ovs_dir}/perf.data $* \ 150 >> ${ovs_dir}/stdout 2>> ${ovs_dir}/stderr 151 return $? 152} 153 154ovs_drop_reason_count() 155{ 156 local reason=$1 157 158 local perf_output=`perf script -i ${ovs_dir}/perf.data -F trace:event,trace` 159 local pattern="skb:kfree_skb:.*reason: $reason" 160 161 return `echo "$perf_output" | grep "$pattern" | wc -l` 162} 163 164usage() { 165 echo 166 echo "$0 [OPTIONS] [TEST]..." 167 echo "If no TEST argument is given, all tests will be run." 168 echo 169 echo "Options" 170 echo " -t: capture traffic via tcpdump" 171 echo " -v: verbose" 172 echo " -p: pause on failure" 173 echo 174 echo "Available tests${tests}" 175 exit 1 176} 177 178# drop_reason test 179# - drop packets and verify the right drop reason is reported 180test_drop_reason() { 181 which perf >/dev/null 2>&1 || return $ksft_skip 182 183 sbx_add "test_drop_reason" || return $? 184 185 ovs_add_dp "test_drop_reason" dropreason || return 1 186 187 info "create namespaces" 188 for ns in client server; do 189 ovs_add_netns_and_veths "test_drop_reason" "dropreason" "$ns" \ 190 "${ns:0:1}0" "${ns:0:1}1" || return 1 191 done 192 193 # Setup client namespace 194 ip netns exec client ip addr add 172.31.110.10/24 dev c1 195 ip netns exec client ip link set c1 up 196 197 # Setup server namespace 198 ip netns exec server ip addr add 172.31.110.20/24 dev s1 199 ip netns exec server ip link set s1 up 200 201 # Allow ARP 202 ovs_add_flow "test_drop_reason" dropreason \ 203 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 204 ovs_add_flow "test_drop_reason" dropreason \ 205 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 206 207 # Allow client ICMP traffic but drop return path 208 ovs_add_flow "test_drop_reason" dropreason \ 209 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=1),icmp()" '2' 210 ovs_add_flow "test_drop_reason" dropreason \ 211 "in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20,proto=1),icmp()" 'drop' 212 213 ovs_drop_record_and_run "test_drop_reason" ip netns exec client ping -c 2 172.31.110.20 214 ovs_drop_reason_count 0x30001 # OVS_DROP_FLOW_ACTION 215 if [[ "$?" -ne "2" ]]; then 216 info "Did not detect expected drops: $?" 217 return 1 218 fi 219 220 # Drop UDP 6000 traffic with an explicit action and an error code. 221 ovs_add_flow "test_drop_reason" dropreason \ 222 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=6000)" \ 223 'drop(42)' 224 # Drop UDP 7000 traffic with an explicit action with no error code. 225 ovs_add_flow "test_drop_reason" dropreason \ 226 "in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10,proto=17),udp(dst=7000)" \ 227 'drop(0)' 228 229 ovs_drop_record_and_run \ 230 "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 6000 231 ovs_drop_reason_count 0x30004 # OVS_DROP_EXPLICIT_ACTION_ERROR 232 if [[ "$?" -ne "1" ]]; then 233 info "Did not detect expected explicit error drops: $?" 234 return 1 235 fi 236 237 ovs_drop_record_and_run \ 238 "test_drop_reason" ip netns exec client nc -i 1 -zuv 172.31.110.20 7000 239 ovs_drop_reason_count 0x30003 # OVS_DROP_EXPLICIT_ACTION 240 if [[ "$?" -ne "1" ]]; then 241 info "Did not detect expected explicit drops: $?" 242 return 1 243 fi 244 245 return 0 246} 247 248# arp_ping test 249# - client has 1500 byte MTU 250# - server has 1500 byte MTU 251# - send ARP ping between two ns 252test_arp_ping () { 253 254 which arping >/dev/null 2>&1 || return $ksft_skip 255 256 sbx_add "test_arp_ping" || return $? 257 258 ovs_add_dp "test_arp_ping" arpping || return 1 259 260 info "create namespaces" 261 for ns in client server; do 262 ovs_add_netns_and_veths "test_arp_ping" "arpping" "$ns" \ 263 "${ns:0:1}0" "${ns:0:1}1" || return 1 264 done 265 266 # Setup client namespace 267 ip netns exec client ip addr add 172.31.110.10/24 dev c1 268 ip netns exec client ip link set c1 up 269 HW_CLIENT=`ip netns exec client ip link show dev c1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'` 270 info "Client hwaddr: $HW_CLIENT" 271 272 # Setup server namespace 273 ip netns exec server ip addr add 172.31.110.20/24 dev s1 274 ip netns exec server ip link set s1 up 275 HW_SERVER=`ip netns exec server ip link show dev s1 | grep -E 'link/ether [0-9a-f:]+' | awk '{print $2;}'` 276 info "Server hwaddr: $HW_SERVER" 277 278 ovs_add_flow "test_arp_ping" arpping \ 279 "in_port(1),eth(),eth_type(0x0806),arp(sip=172.31.110.10,tip=172.31.110.20,sha=$HW_CLIENT,tha=ff:ff:ff:ff:ff:ff)" '2' || return 1 280 ovs_add_flow "test_arp_ping" arpping \ 281 "in_port(2),eth(),eth_type(0x0806),arp()" '1' || return 1 282 283 ovs_sbx "test_arp_ping" ip netns exec client arping -I c1 172.31.110.20 -c 1 || return 1 284 285 return 0 286} 287 288# ct_connect_v4 test 289# - client has 1500 byte MTU 290# - server has 1500 byte MTU 291# - use ICMP to ping in each direction 292# - only allow CT state stuff to pass through new in c -> s 293test_ct_connect_v4 () { 294 295 which nc >/dev/null 2>/dev/null || return $ksft_skip 296 297 sbx_add "test_ct_connect_v4" || return $? 298 299 ovs_add_dp "test_ct_connect_v4" ct4 || return 1 300 info "create namespaces" 301 for ns in client server; do 302 ovs_add_netns_and_veths "test_ct_connect_v4" "ct4" "$ns" \ 303 "${ns:0:1}0" "${ns:0:1}1" || return 1 304 done 305 306 ip netns exec client ip addr add 172.31.110.10/24 dev c1 307 ip netns exec client ip link set c1 up 308 ip netns exec server ip addr add 172.31.110.20/24 dev s1 309 ip netns exec server ip link set s1 up 310 311 # Add forwarding for ARP and ip packets - completely wildcarded 312 ovs_add_flow "test_ct_connect_v4" ct4 \ 313 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 314 ovs_add_flow "test_ct_connect_v4" ct4 \ 315 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 316 ovs_add_flow "test_ct_connect_v4" ct4 \ 317 'ct_state(-trk),eth(),eth_type(0x0800),ipv4()' \ 318 'ct(commit),recirc(0x1)' || return 1 319 ovs_add_flow "test_ct_connect_v4" ct4 \ 320 'recirc_id(0x1),ct_state(+trk+new),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \ 321 '2' || return 1 322 ovs_add_flow "test_ct_connect_v4" ct4 \ 323 'recirc_id(0x1),ct_state(+trk+est),in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' \ 324 '2' || return 1 325 ovs_add_flow "test_ct_connect_v4" ct4 \ 326 'recirc_id(0x1),ct_state(+trk+est),in_port(2),eth(),eth_type(0x0800),ipv4(dst=172.31.110.10)' \ 327 '1' || return 1 328 ovs_add_flow "test_ct_connect_v4" ct4 \ 329 'recirc_id(0x1),ct_state(+trk+inv),eth(),eth_type(0x0800),ipv4()' 'drop' || \ 330 return 1 331 332 # do a ping 333 ovs_sbx "test_ct_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1 334 335 # create an echo server in 'server' 336 echo "server" | \ 337 ovs_netns_spawn_daemon "test_ct_connect_v4" "server" \ 338 nc -lvnp 4443 339 ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.20 4443 || return 1 340 341 # Now test in the other direction (should fail) 342 echo "client" | \ 343 ovs_netns_spawn_daemon "test_ct_connect_v4" "client" \ 344 nc -lvnp 4443 345 ovs_sbx "test_ct_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443 346 if [ $? == 0 ]; then 347 info "ct connect to client was successful" 348 return 1 349 fi 350 351 info "done..." 352 return 0 353} 354 355# connect_v4 test 356# - client has 1500 byte MTU 357# - server has 1500 byte MTU 358# - use ICMP to ping in each direction 359test_connect_v4 () { 360 361 sbx_add "test_connect_v4" || return $? 362 363 ovs_add_dp "test_connect_v4" cv4 || return 1 364 365 info "create namespaces" 366 for ns in client server; do 367 ovs_add_netns_and_veths "test_connect_v4" "cv4" "$ns" \ 368 "${ns:0:1}0" "${ns:0:1}1" || return 1 369 done 370 371 372 ip netns exec client ip addr add 172.31.110.10/24 dev c1 373 ip netns exec client ip link set c1 up 374 ip netns exec server ip addr add 172.31.110.20/24 dev s1 375 ip netns exec server ip link set s1 up 376 377 # Add forwarding for ARP and ip packets - completely wildcarded 378 ovs_add_flow "test_connect_v4" cv4 \ 379 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 380 ovs_add_flow "test_connect_v4" cv4 \ 381 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 382 ovs_add_flow "test_connect_v4" cv4 \ 383 'in_port(1),eth(),eth_type(0x0800),ipv4(src=172.31.110.10)' '2' || return 1 384 ovs_add_flow "test_connect_v4" cv4 \ 385 'in_port(2),eth(),eth_type(0x0800),ipv4(src=172.31.110.20)' '1' || return 1 386 387 # do a ping 388 ovs_sbx "test_connect_v4" ip netns exec client ping 172.31.110.20 -c 3 || return 1 389 390 info "done..." 391 return 0 392} 393 394# nat_connect_v4 test 395# - client has 1500 byte MTU 396# - server has 1500 byte MTU 397# - use ICMP to ping in each direction 398# - only allow CT state stuff to pass through new in c -> s 399test_nat_connect_v4 () { 400 which nc >/dev/null 2>/dev/null || return $ksft_skip 401 402 sbx_add "test_nat_connect_v4" || return $? 403 404 ovs_add_dp "test_nat_connect_v4" nat4 || return 1 405 info "create namespaces" 406 for ns in client server; do 407 ovs_add_netns_and_veths "test_nat_connect_v4" "nat4" "$ns" \ 408 "${ns:0:1}0" "${ns:0:1}1" || return 1 409 done 410 411 ip netns exec client ip addr add 172.31.110.10/24 dev c1 412 ip netns exec client ip link set c1 up 413 ip netns exec server ip addr add 172.31.110.20/24 dev s1 414 ip netns exec server ip link set s1 up 415 416 ip netns exec client ip route add default via 172.31.110.20 417 418 ovs_add_flow "test_nat_connect_v4" nat4 \ 419 'in_port(1),eth(),eth_type(0x0806),arp()' '2' || return 1 420 ovs_add_flow "test_nat_connect_v4" nat4 \ 421 'in_port(2),eth(),eth_type(0x0806),arp()' '1' || return 1 422 ovs_add_flow "test_nat_connect_v4" nat4 \ 423 "ct_state(-trk),in_port(1),eth(),eth_type(0x0800),ipv4(dst=192.168.0.20)" \ 424 "ct(commit,nat(dst=172.31.110.20)),recirc(0x1)" 425 ovs_add_flow "test_nat_connect_v4" nat4 \ 426 "ct_state(-trk),in_port(2),eth(),eth_type(0x0800),ipv4()" \ 427 "ct(commit,nat),recirc(0x2)" 428 429 ovs_add_flow "test_nat_connect_v4" nat4 \ 430 "recirc_id(0x1),ct_state(+trk-inv),in_port(1),eth(),eth_type(0x0800),ipv4()" "2" 431 ovs_add_flow "test_nat_connect_v4" nat4 \ 432 "recirc_id(0x2),ct_state(+trk-inv),in_port(2),eth(),eth_type(0x0800),ipv4()" "1" 433 434 # do a ping 435 ovs_sbx "test_nat_connect_v4" ip netns exec client ping 192.168.0.20 -c 3 || return 1 436 437 # create an echo server in 'server' 438 echo "server" | \ 439 ovs_netns_spawn_daemon "test_nat_connect_v4" "server" \ 440 nc -lvnp 4443 441 ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 192.168.0.20 4443 || return 1 442 443 # Now test in the other direction (should fail) 444 echo "client" | \ 445 ovs_netns_spawn_daemon "test_nat_connect_v4" "client" \ 446 nc -lvnp 4443 447 ovs_sbx "test_nat_connect_v4" ip netns exec client nc -i 1 -zv 172.31.110.10 4443 448 if [ $? == 0 ]; then 449 info "connect to client was successful" 450 return 1 451 fi 452 453 info "done..." 454 return 0 455} 456 457# netlink_validation 458# - Create a dp 459# - check no warning with "old version" simulation 460test_netlink_checks () { 461 sbx_add "test_netlink_checks" || return 1 462 463 info "setting up new DP" 464 ovs_add_dp "test_netlink_checks" nv0 || return 1 465 # now try again 466 PRE_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+") 467 ovs_add_dp "test_netlink_checks" nv0 -V 0 || return 1 468 POST_TEST=$(dmesg | grep -E "RIP: [0-9a-fA-Fx]+:ovs_dp_cmd_new\+") 469 if [ "$PRE_TEST" != "$POST_TEST" ]; then 470 info "failed - gen warning" 471 return 1 472 fi 473 474 ovs_add_netns_and_veths "test_netlink_checks" nv0 left left0 l0 || \ 475 return 1 476 ovs_add_netns_and_veths "test_netlink_checks" nv0 right right0 r0 || \ 477 return 1 478 [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ 479 wc -l) == 3 ] || \ 480 return 1 481 ovs_del_if "test_netlink_checks" nv0 right0 || return 1 482 [ $(python3 $ovs_base/ovs-dpctl.py show nv0 | grep port | \ 483 wc -l) == 2 ] || \ 484 return 1 485 486 ERR_MSG="Flow actions may not be safe on all matching packets" 487 PRE_TEST=$(dmesg | grep -c "${ERR_MSG}") 488 ovs_add_flow "test_netlink_checks" nv0 \ 489 'in_port(1),eth(),eth_type(0x0806),arp()' 'drop(0),2' \ 490 &> /dev/null && return 1 491 POST_TEST=$(dmesg | grep -c "${ERR_MSG}") 492 if [ "$PRE_TEST" == "$POST_TEST" ]; then 493 info "failed - error not generated" 494 return 1 495 fi 496 return 0 497} 498 499test_upcall_interfaces() { 500 sbx_add "test_upcall_interfaces" || return 1 501 502 info "setting up new DP" 503 ovs_add_dp "test_upcall_interfaces" ui0 -V 2:1 || return 1 504 505 ovs_add_netns_and_veths "test_upcall_interfaces" ui0 upc left0 l0 \ 506 172.31.110.1/24 -u || return 1 507 508 sleep 1 509 info "sending arping" 510 ip netns exec upc arping -I l0 172.31.110.20 -c 1 \ 511 >$ovs_dir/arping.stdout 2>$ovs_dir/arping.stderr 512 513 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 1 514 return 0 515} 516 517run_test() { 518 ( 519 tname="$1" 520 tdesc="$2" 521 522 if ! lsmod | grep openvswitch >/dev/null 2>&1; then 523 stdbuf -o0 printf "TEST: %-60s [NOMOD]\n" "${tdesc}" 524 return $ksft_skip 525 fi 526 527 if python3 ovs-dpctl.py -h 2>&1 | \ 528 grep "Need to install the python" >/dev/null 2>&1; then 529 stdbuf -o0 printf "TEST: %-60s [PYLIB]\n" "${tdesc}" 530 return $ksft_skip 531 fi 532 printf "TEST: %-60s [START]\n" "${tname}" 533 534 unset IFS 535 536 eval test_${tname} 537 ret=$? 538 539 if [ $ret -eq 0 ]; then 540 printf "TEST: %-60s [ OK ]\n" "${tdesc}" 541 ovs_exit_sig 542 rm -rf "$ovs_dir" 543 elif [ $ret -eq 1 ]; then 544 printf "TEST: %-60s [FAIL]\n" "${tdesc}" 545 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then 546 echo 547 echo "Pausing. Logs in $ovs_dir/. Hit enter to continue" 548 read a 549 fi 550 ovs_exit_sig 551 [ "${PAUSE_ON_FAIL}" = "yes" ] || rm -rf "$ovs_dir" 552 exit 1 553 elif [ $ret -eq $ksft_skip ]; then 554 printf "TEST: %-60s [SKIP]\n" "${tdesc}" 555 elif [ $ret -eq 2 ]; then 556 rm -rf test_${tname} 557 run_test "$1" "$2" 558 fi 559 560 return $ret 561 ) 562 ret=$? 563 case $ret in 564 0) 565 [ $all_skipped = true ] && [ $exitcode=$ksft_skip ] && exitcode=0 566 all_skipped=false 567 ;; 568 $ksft_skip) 569 [ $all_skipped = true ] && exitcode=$ksft_skip 570 ;; 571 *) 572 all_skipped=false 573 exitcode=1 574 ;; 575 esac 576 577 return $ret 578} 579 580 581exitcode=0 582desc=0 583all_skipped=true 584 585while getopts :pvt o 586do 587 case $o in 588 p) PAUSE_ON_FAIL=yes;; 589 v) VERBOSE=1;; 590 t) if which tcpdump > /dev/null 2>&1; then 591 TRACING=1 592 else 593 echo "=== tcpdump not available, tracing disabled" 594 fi 595 ;; 596 *) usage;; 597 esac 598done 599shift $(($OPTIND-1)) 600 601IFS=" 602" 603 604for arg do 605 # Check first that all requested tests are available before running any 606 command -v > /dev/null "test_${arg}" || { echo "=== Test ${arg} not found"; usage; } 607done 608 609name="" 610desc="" 611for t in ${tests}; do 612 [ "${name}" = "" ] && name="${t}" && continue 613 [ "${desc}" = "" ] && desc="${t}" 614 615 run_this=1 616 for arg do 617 [ "${arg}" != "${arg#--*}" ] && continue 618 [ "${arg}" = "${name}" ] && run_this=1 && break 619 run_this=0 620 done 621 if [ $run_this -eq 1 ]; then 622 run_test "${name}" "${desc}" 623 fi 624 name="" 625 desc="" 626done 627 628exit ${exitcode} 629