1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3# 4# ns: me | ns: peer | ns: remote 5# 2001:db8:91::1 | 2001:db8:91::2 | 6# 172.16.1.1 | 172.16.1.2 | 7# veth1 <---|---> veth2 | 8# | veth5 <--|--> veth6 172.16.101.1 9# veth3 <---|---> veth4 | 2001:db8:101::1 10# 172.16.2.1 | 172.16.2.2 | 11# 2001:db8:92::1 | 2001:db8:92::2 | 12# 13# This test is for checking IPv4 and IPv6 FIB behavior with nexthop 14# objects. Device reference counts and network namespace cleanup tested 15# by use of network namespace for peer. 16 17ret=0 18# Kselftest framework requirement - SKIP code is 4. 19ksft_skip=4 20 21# all tests in this script. Can be overridden with -t option 22IPV4_TESTS="ipv4_fcnal ipv4_grp_fcnal ipv4_withv6_fcnal ipv4_fcnal_runtime ipv4_large_grp ipv4_compat_mode ipv4_fdb_grp_fcnal ipv4_torture" 23IPV6_TESTS="ipv6_fcnal ipv6_grp_fcnal ipv6_fcnal_runtime ipv6_large_grp ipv6_compat_mode ipv6_fdb_grp_fcnal ipv6_torture" 24 25ALL_TESTS="basic ${IPV4_TESTS} ${IPV6_TESTS}" 26TESTS="${ALL_TESTS}" 27VERBOSE=0 28PAUSE_ON_FAIL=no 29PAUSE=no 30 31nsid=100 32 33################################################################################ 34# utilities 35 36log_test() 37{ 38 local rc=$1 39 local expected=$2 40 local msg="$3" 41 42 if [ ${rc} -eq ${expected} ]; then 43 printf "TEST: %-60s [ OK ]\n" "${msg}" 44 nsuccess=$((nsuccess+1)) 45 else 46 ret=1 47 nfail=$((nfail+1)) 48 printf "TEST: %-60s [FAIL]\n" "${msg}" 49 if [ "$VERBOSE" = "1" ]; then 50 echo " rc=$rc, expected $expected" 51 fi 52 53 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then 54 echo 55 echo "hit enter to continue, 'q' to quit" 56 read a 57 [ "$a" = "q" ] && exit 1 58 fi 59 fi 60 61 if [ "${PAUSE}" = "yes" ]; then 62 echo 63 echo "hit enter to continue, 'q' to quit" 64 read a 65 [ "$a" = "q" ] && exit 1 66 fi 67 68 [ "$VERBOSE" = "1" ] && echo 69} 70 71run_cmd() 72{ 73 local cmd="$1" 74 local out 75 local stderr="2>/dev/null" 76 77 if [ "$VERBOSE" = "1" ]; then 78 printf "COMMAND: $cmd\n" 79 stderr= 80 fi 81 82 out=$(eval $cmd $stderr) 83 rc=$? 84 if [ "$VERBOSE" = "1" -a -n "$out" ]; then 85 echo " $out" 86 fi 87 88 return $rc 89} 90 91get_linklocal() 92{ 93 local dev=$1 94 local ns 95 local addr 96 97 [ -n "$2" ] && ns="-netns $2" 98 addr=$(ip $ns -6 -br addr show dev ${dev} | \ 99 awk '{ 100 for (i = 3; i <= NF; ++i) { 101 if ($i ~ /^fe80/) 102 print $i 103 } 104 }' 105 ) 106 addr=${addr/\/*} 107 108 [ -z "$addr" ] && return 1 109 110 echo $addr 111 112 return 0 113} 114 115create_ns() 116{ 117 local n=${1} 118 119 ip netns del ${n} 2>/dev/null 120 121 set -e 122 ip netns add ${n} 123 ip netns set ${n} $((nsid++)) 124 ip -netns ${n} addr add 127.0.0.1/8 dev lo 125 ip -netns ${n} link set lo up 126 127 ip netns exec ${n} sysctl -qw net.ipv4.ip_forward=1 128 ip netns exec ${n} sysctl -qw net.ipv4.fib_multipath_use_neigh=1 129 ip netns exec ${n} sysctl -qw net.ipv4.conf.default.ignore_routes_with_linkdown=1 130 ip netns exec ${n} sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1 131 ip netns exec ${n} sysctl -qw net.ipv6.conf.all.forwarding=1 132 ip netns exec ${n} sysctl -qw net.ipv6.conf.default.forwarding=1 133 ip netns exec ${n} sysctl -qw net.ipv6.conf.default.ignore_routes_with_linkdown=1 134 ip netns exec ${n} sysctl -qw net.ipv6.conf.all.accept_dad=0 135 ip netns exec ${n} sysctl -qw net.ipv6.conf.default.accept_dad=0 136 137 set +e 138} 139 140setup() 141{ 142 cleanup 143 144 create_ns me 145 create_ns peer 146 create_ns remote 147 148 IP="ip -netns me" 149 BRIDGE="bridge -netns me" 150 set -e 151 $IP li add veth1 type veth peer name veth2 152 $IP li set veth1 up 153 $IP addr add 172.16.1.1/24 dev veth1 154 $IP -6 addr add 2001:db8:91::1/64 dev veth1 nodad 155 156 $IP li add veth3 type veth peer name veth4 157 $IP li set veth3 up 158 $IP addr add 172.16.2.1/24 dev veth3 159 $IP -6 addr add 2001:db8:92::1/64 dev veth3 nodad 160 161 $IP li set veth2 netns peer up 162 ip -netns peer addr add 172.16.1.2/24 dev veth2 163 ip -netns peer -6 addr add 2001:db8:91::2/64 dev veth2 nodad 164 165 $IP li set veth4 netns peer up 166 ip -netns peer addr add 172.16.2.2/24 dev veth4 167 ip -netns peer -6 addr add 2001:db8:92::2/64 dev veth4 nodad 168 169 ip -netns remote li add veth5 type veth peer name veth6 170 ip -netns remote li set veth5 up 171 ip -netns remote addr add dev veth5 172.16.101.1/24 172 ip -netns remote -6 addr add dev veth5 2001:db8:101::1/64 nodad 173 ip -netns remote ro add 172.16.0.0/22 via 172.16.101.2 174 ip -netns remote -6 ro add 2001:db8:90::/40 via 2001:db8:101::2 175 176 ip -netns remote li set veth6 netns peer up 177 ip -netns peer addr add dev veth6 172.16.101.2/24 178 ip -netns peer -6 addr add dev veth6 2001:db8:101::2/64 nodad 179 set +e 180} 181 182cleanup() 183{ 184 local ns 185 186 for ns in me peer remote; do 187 ip netns del ${ns} 2>/dev/null 188 done 189} 190 191check_output() 192{ 193 local out="$1" 194 local expected="$2" 195 local rc=0 196 197 [ "${out}" = "${expected}" ] && return 0 198 199 if [ -z "${out}" ]; then 200 if [ "$VERBOSE" = "1" ]; then 201 printf "\nNo entry found\n" 202 printf "Expected:\n" 203 printf " ${expected}\n" 204 fi 205 return 1 206 fi 207 208 out=$(echo ${out}) 209 if [ "${out}" != "${expected}" ]; then 210 rc=1 211 if [ "${VERBOSE}" = "1" ]; then 212 printf " Unexpected entry. Have:\n" 213 printf " ${out}\n" 214 printf " Expected:\n" 215 printf " ${expected}\n\n" 216 else 217 echo " WARNING: Unexpected route entry" 218 fi 219 fi 220 221 return $rc 222} 223 224check_nexthop() 225{ 226 local nharg="$1" 227 local expected="$2" 228 local out 229 230 out=$($IP nexthop ls ${nharg} 2>/dev/null) 231 232 check_output "${out}" "${expected}" 233} 234 235check_route() 236{ 237 local pfx="$1" 238 local expected="$2" 239 local out 240 241 out=$($IP route ls match ${pfx} 2>/dev/null) 242 243 check_output "${out}" "${expected}" 244} 245 246check_route6() 247{ 248 local pfx="$1" 249 local expected="$2" 250 local out 251 252 out=$($IP -6 route ls match ${pfx} 2>/dev/null | sed -e 's/pref medium//') 253 254 check_output "${out}" "${expected}" 255} 256 257check_large_grp() 258{ 259 local ipv=$1 260 local ecmp=$2 261 local grpnum=100 262 local nhidstart=100 263 local grpidstart=1000 264 local iter=0 265 local nhidstr="" 266 local grpidstr="" 267 local grpstr="" 268 local ipstr="" 269 270 if [ $ipv -eq 4 ]; then 271 ipstr="172.16.1." 272 else 273 ipstr="2001:db8:91::" 274 fi 275 276 # 277 # Create $grpnum groups with specified $ecmp and dump them 278 # 279 280 # create nexthops with different gateways 281 iter=2 282 while [ $iter -le $(($ecmp + 1)) ] 283 do 284 nhidstr="$(($nhidstart + $iter))" 285 run_cmd "$IP nexthop add id $nhidstr via $ipstr$iter dev veth1" 286 check_nexthop "id $nhidstr" "id $nhidstr via $ipstr$iter dev veth1 scope link" 287 288 if [ $iter -le $ecmp ]; then 289 grpstr+="$nhidstr/" 290 else 291 grpstr+="$nhidstr" 292 fi 293 ((iter++)) 294 done 295 296 # create duplicate large ecmp groups 297 iter=0 298 while [ $iter -le $grpnum ] 299 do 300 grpidstr="$(($grpidstart + $iter))" 301 run_cmd "$IP nexthop add id $grpidstr group $grpstr" 302 check_nexthop "id $grpidstr" "id $grpidstr group $grpstr" 303 ((iter++)) 304 done 305 306 # dump large groups 307 run_cmd "$IP nexthop list" 308 log_test $? 0 "Dump large (x$ecmp) ecmp groups" 309} 310 311start_ip_monitor() 312{ 313 local mtype=$1 314 315 # start the monitor in the background 316 tmpfile=`mktemp /var/run/nexthoptestXXX` 317 mpid=`($IP monitor $mtype > $tmpfile & echo $!) 2>/dev/null` 318 sleep 0.2 319 echo "$mpid $tmpfile" 320} 321 322stop_ip_monitor() 323{ 324 local mpid=$1 325 local tmpfile=$2 326 local el=$3 327 328 # check the monitor results 329 kill $mpid 330 lines=`wc -l $tmpfile | cut "-d " -f1` 331 test $lines -eq $el 332 rc=$? 333 rm -rf $tmpfile 334 335 return $rc 336} 337 338check_nexthop_fdb_support() 339{ 340 $IP nexthop help 2>&1 | grep -q fdb 341 if [ $? -ne 0 ]; then 342 echo "SKIP: iproute2 too old, missing fdb nexthop support" 343 return $ksft_skip 344 fi 345} 346 347ipv6_fdb_grp_fcnal() 348{ 349 local rc 350 351 echo 352 echo "IPv6 fdb groups functional" 353 echo "--------------------------" 354 355 check_nexthop_fdb_support 356 if [ $? -eq $ksft_skip ]; then 357 return $ksft_skip 358 fi 359 360 # create group with multiple nexthops 361 run_cmd "$IP nexthop add id 61 via 2001:db8:91::2 fdb" 362 run_cmd "$IP nexthop add id 62 via 2001:db8:91::3 fdb" 363 run_cmd "$IP nexthop add id 102 group 61/62 fdb" 364 check_nexthop "id 102" "id 102 group 61/62 fdb" 365 log_test $? 0 "Fdb Nexthop group with multiple nexthops" 366 367 ## get nexthop group 368 run_cmd "$IP nexthop get id 102" 369 check_nexthop "id 102" "id 102 group 61/62 fdb" 370 log_test $? 0 "Get Fdb nexthop group by id" 371 372 # fdb nexthop group can only contain fdb nexthops 373 run_cmd "$IP nexthop add id 63 via 2001:db8:91::4" 374 run_cmd "$IP nexthop add id 64 via 2001:db8:91::5" 375 run_cmd "$IP nexthop add id 103 group 63/64 fdb" 376 log_test $? 2 "Fdb Nexthop group with non-fdb nexthops" 377 378 # Non fdb nexthop group can not contain fdb nexthops 379 run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 fdb" 380 run_cmd "$IP nexthop add id 66 via 2001:db8:91::6 fdb" 381 run_cmd "$IP nexthop add id 104 group 65/66" 382 log_test $? 2 "Non-Fdb Nexthop group with fdb nexthops" 383 384 # fdb nexthop cannot have blackhole 385 run_cmd "$IP nexthop add id 67 blackhole fdb" 386 log_test $? 2 "Fdb Nexthop with blackhole" 387 388 # fdb nexthop with oif 389 run_cmd "$IP nexthop add id 68 via 2001:db8:91::7 dev veth1 fdb" 390 log_test $? 2 "Fdb Nexthop with oif" 391 392 # fdb nexthop with onlink 393 run_cmd "$IP nexthop add id 68 via 2001:db8:91::7 onlink fdb" 394 log_test $? 2 "Fdb Nexthop with onlink" 395 396 # fdb nexthop with encap 397 run_cmd "$IP nexthop add id 69 encap mpls 101 via 2001:db8:91::8 dev veth1 fdb" 398 log_test $? 2 "Fdb Nexthop with encap" 399 400 run_cmd "$IP link add name vx10 type vxlan id 1010 local 2001:db8:91::9 remote 2001:db8:91::10 dstport 4789 nolearning noudpcsum tos inherit ttl 100" 401 run_cmd "$BRIDGE fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self" 402 log_test $? 0 "Fdb mac add with nexthop group" 403 404 ## fdb nexthops can only reference nexthop groups and not nexthops 405 run_cmd "$BRIDGE fdb add 02:02:00:00:00:14 dev vx10 nhid 61 self" 406 log_test $? 255 "Fdb mac add with nexthop" 407 408 run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 66" 409 log_test $? 2 "Route add with fdb nexthop" 410 411 run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 103" 412 log_test $? 2 "Route add with fdb nexthop group" 413 414 run_cmd "$IP nexthop del id 102" 415 log_test $? 0 "Fdb nexthop delete" 416 417 $IP link del dev vx10 418} 419 420ipv4_fdb_grp_fcnal() 421{ 422 local rc 423 424 echo 425 echo "IPv4 fdb groups functional" 426 echo "--------------------------" 427 428 check_nexthop_fdb_support 429 if [ $? -eq $ksft_skip ]; then 430 return $ksft_skip 431 fi 432 433 # create group with multiple nexthops 434 run_cmd "$IP nexthop add id 12 via 172.16.1.2 fdb" 435 run_cmd "$IP nexthop add id 13 via 172.16.1.3 fdb" 436 run_cmd "$IP nexthop add id 102 group 12/13 fdb" 437 check_nexthop "id 102" "id 102 group 12/13 fdb" 438 log_test $? 0 "Fdb Nexthop group with multiple nexthops" 439 440 # get nexthop group 441 run_cmd "$IP nexthop get id 102" 442 check_nexthop "id 102" "id 102 group 12/13 fdb" 443 log_test $? 0 "Get Fdb nexthop group by id" 444 445 # fdb nexthop group can only contain fdb nexthops 446 run_cmd "$IP nexthop add id 14 via 172.16.1.2" 447 run_cmd "$IP nexthop add id 15 via 172.16.1.3" 448 run_cmd "$IP nexthop add id 103 group 14/15 fdb" 449 log_test $? 2 "Fdb Nexthop group with non-fdb nexthops" 450 451 # Non fdb nexthop group can not contain fdb nexthops 452 run_cmd "$IP nexthop add id 16 via 172.16.1.2 fdb" 453 run_cmd "$IP nexthop add id 17 via 172.16.1.3 fdb" 454 run_cmd "$IP nexthop add id 104 group 14/15" 455 log_test $? 2 "Non-Fdb Nexthop group with fdb nexthops" 456 457 # fdb nexthop cannot have blackhole 458 run_cmd "$IP nexthop add id 18 blackhole fdb" 459 log_test $? 2 "Fdb Nexthop with blackhole" 460 461 # fdb nexthop with oif 462 run_cmd "$IP nexthop add id 16 via 172.16.1.2 dev veth1 fdb" 463 log_test $? 2 "Fdb Nexthop with oif" 464 465 # fdb nexthop with onlink 466 run_cmd "$IP nexthop add id 16 via 172.16.1.2 onlink fdb" 467 log_test $? 2 "Fdb Nexthop with onlink" 468 469 # fdb nexthop with encap 470 run_cmd "$IP nexthop add id 17 encap mpls 101 via 172.16.1.2 dev veth1 fdb" 471 log_test $? 2 "Fdb Nexthop with encap" 472 473 run_cmd "$IP link add name vx10 type vxlan id 1010 local 10.0.0.1 remote 10.0.0.2 dstport 4789 nolearning noudpcsum tos inherit ttl 100" 474 run_cmd "$BRIDGE fdb add 02:02:00:00:00:13 dev vx10 nhid 102 self" 475 log_test $? 0 "Fdb mac add with nexthop group" 476 477 # fdb nexthops can only reference nexthop groups and not nexthops 478 run_cmd "$BRIDGE fdb add 02:02:00:00:00:14 dev vx10 nhid 12 self" 479 log_test $? 255 "Fdb mac add with nexthop" 480 481 run_cmd "$IP ro add 172.16.0.0/22 nhid 15" 482 log_test $? 2 "Route add with fdb nexthop" 483 484 run_cmd "$IP ro add 172.16.0.0/22 nhid 103" 485 log_test $? 2 "Route add with fdb nexthop group" 486 487 run_cmd "$IP nexthop del id 102" 488 log_test $? 0 "Fdb nexthop delete" 489 490 $IP link del dev vx10 491} 492 493################################################################################ 494# basic operations (add, delete, replace) on nexthops and nexthop groups 495# 496# IPv6 497 498ipv6_fcnal() 499{ 500 local rc 501 502 echo 503 echo "IPv6" 504 echo "----------------------" 505 506 run_cmd "$IP nexthop add id 52 via 2001:db8:91::2 dev veth1" 507 rc=$? 508 log_test $rc 0 "Create nexthop with id, gw, dev" 509 if [ $rc -ne 0 ]; then 510 echo "Basic IPv6 create fails; can not continue" 511 return 1 512 fi 513 514 run_cmd "$IP nexthop get id 52" 515 log_test $? 0 "Get nexthop by id" 516 check_nexthop "id 52" "id 52 via 2001:db8:91::2 dev veth1 scope link" 517 518 run_cmd "$IP nexthop del id 52" 519 log_test $? 0 "Delete nexthop by id" 520 check_nexthop "id 52" "" 521 522 # 523 # gw, device spec 524 # 525 # gw validation, no device - fails since dev required 526 run_cmd "$IP nexthop add id 52 via 2001:db8:92::3" 527 log_test $? 2 "Create nexthop - gw only" 528 529 # gw is not reachable throught given dev 530 run_cmd "$IP nexthop add id 53 via 2001:db8:3::3 dev veth1" 531 log_test $? 2 "Create nexthop - invalid gw+dev combination" 532 533 # onlink arg overrides gw+dev lookup 534 run_cmd "$IP nexthop add id 53 via 2001:db8:3::3 dev veth1 onlink" 535 log_test $? 0 "Create nexthop - gw+dev and onlink" 536 537 # admin down should delete nexthops 538 set -e 539 run_cmd "$IP -6 nexthop add id 55 via 2001:db8:91::3 dev veth1" 540 run_cmd "$IP nexthop add id 56 via 2001:db8:91::4 dev veth1" 541 run_cmd "$IP nexthop add id 57 via 2001:db8:91::5 dev veth1" 542 run_cmd "$IP li set dev veth1 down" 543 set +e 544 check_nexthop "dev veth1" "" 545 log_test $? 0 "Nexthops removed on admin down" 546} 547 548ipv6_grp_fcnal() 549{ 550 local rc 551 552 echo 553 echo "IPv6 groups functional" 554 echo "----------------------" 555 556 # basic functionality: create a nexthop group, default weight 557 run_cmd "$IP nexthop add id 61 via 2001:db8:91::2 dev veth1" 558 run_cmd "$IP nexthop add id 101 group 61" 559 log_test $? 0 "Create nexthop group with single nexthop" 560 561 # get nexthop group 562 run_cmd "$IP nexthop get id 101" 563 log_test $? 0 "Get nexthop group by id" 564 check_nexthop "id 101" "id 101 group 61" 565 566 # delete nexthop group 567 run_cmd "$IP nexthop del id 101" 568 log_test $? 0 "Delete nexthop group by id" 569 check_nexthop "id 101" "" 570 571 $IP nexthop flush >/dev/null 2>&1 572 check_nexthop "id 101" "" 573 574 # 575 # create group with multiple nexthops - mix of gw and dev only 576 # 577 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1" 578 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1" 579 run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1" 580 run_cmd "$IP nexthop add id 65 dev veth1" 581 run_cmd "$IP nexthop add id 102 group 62/63/64/65" 582 log_test $? 0 "Nexthop group with multiple nexthops" 583 check_nexthop "id 102" "id 102 group 62/63/64/65" 584 585 # Delete nexthop in a group and group is updated 586 run_cmd "$IP nexthop del id 63" 587 check_nexthop "id 102" "id 102 group 62/64/65" 588 log_test $? 0 "Nexthop group updated when entry is deleted" 589 590 # create group with multiple weighted nexthops 591 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1" 592 run_cmd "$IP nexthop add id 103 group 62/63,2/64,3/65,4" 593 log_test $? 0 "Nexthop group with weighted nexthops" 594 check_nexthop "id 103" "id 103 group 62/63,2/64,3/65,4" 595 596 # Delete nexthop in a weighted group and group is updated 597 run_cmd "$IP nexthop del id 63" 598 check_nexthop "id 103" "id 103 group 62/64,3/65,4" 599 log_test $? 0 "Weighted nexthop group updated when entry is deleted" 600 601 # admin down - nexthop is removed from group 602 run_cmd "$IP li set dev veth1 down" 603 check_nexthop "dev veth1" "" 604 log_test $? 0 "Nexthops in groups removed on admin down" 605 606 # expect groups to have been deleted as well 607 check_nexthop "" "" 608 609 run_cmd "$IP li set dev veth1 up" 610 611 $IP nexthop flush >/dev/null 2>&1 612 613 # group with nexthops using different devices 614 set -e 615 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1" 616 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1" 617 run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1" 618 run_cmd "$IP nexthop add id 65 via 2001:db8:91::5 dev veth1" 619 620 run_cmd "$IP nexthop add id 72 via 2001:db8:92::2 dev veth3" 621 run_cmd "$IP nexthop add id 73 via 2001:db8:92::3 dev veth3" 622 run_cmd "$IP nexthop add id 74 via 2001:db8:92::4 dev veth3" 623 run_cmd "$IP nexthop add id 75 via 2001:db8:92::5 dev veth3" 624 set +e 625 626 # multiple groups with same nexthop 627 run_cmd "$IP nexthop add id 104 group 62" 628 run_cmd "$IP nexthop add id 105 group 62" 629 check_nexthop "group" "id 104 group 62 id 105 group 62" 630 log_test $? 0 "Multiple groups with same nexthop" 631 632 run_cmd "$IP nexthop flush groups" 633 [ $? -ne 0 ] && return 1 634 635 # on admin down of veth1, it should be removed from the group 636 run_cmd "$IP nexthop add id 105 group 62/63/72/73/64" 637 run_cmd "$IP li set veth1 down" 638 check_nexthop "id 105" "id 105 group 72/73" 639 log_test $? 0 "Nexthops in group removed on admin down - mixed group" 640 641 run_cmd "$IP nexthop add id 106 group 105/74" 642 log_test $? 2 "Nexthop group can not have a group as an entry" 643 644 # a group can have a blackhole entry only if it is the only 645 # nexthop in the group. Needed for atomic replace with an 646 # actual nexthop group 647 run_cmd "$IP -6 nexthop add id 31 blackhole" 648 run_cmd "$IP nexthop add id 107 group 31" 649 log_test $? 0 "Nexthop group with a blackhole entry" 650 651 run_cmd "$IP nexthop add id 108 group 31/24" 652 log_test $? 2 "Nexthop group can not have a blackhole and another nexthop" 653} 654 655ipv6_fcnal_runtime() 656{ 657 local rc 658 659 echo 660 echo "IPv6 functional runtime" 661 echo "-----------------------" 662 663 # 664 # IPv6 - the basics 665 # 666 run_cmd "$IP nexthop add id 81 via 2001:db8:91::2 dev veth1" 667 run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81" 668 log_test $? 0 "Route add" 669 670 run_cmd "$IP ro delete 2001:db8:101::1/128 nhid 81" 671 log_test $? 0 "Route delete" 672 673 run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81" 674 run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1" 675 log_test $? 0 "Ping with nexthop" 676 677 run_cmd "$IP nexthop add id 82 via 2001:db8:92::2 dev veth3" 678 run_cmd "$IP nexthop add id 122 group 81/82" 679 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122" 680 run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1" 681 log_test $? 0 "Ping - multipath" 682 683 # 684 # IPv6 with blackhole nexthops 685 # 686 run_cmd "$IP -6 nexthop add id 83 blackhole" 687 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 83" 688 run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1" 689 log_test $? 2 "Ping - blackhole" 690 691 run_cmd "$IP nexthop replace id 83 via 2001:db8:91::2 dev veth1" 692 run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1" 693 log_test $? 0 "Ping - blackhole replaced with gateway" 694 695 run_cmd "$IP -6 nexthop replace id 83 blackhole" 696 run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1" 697 log_test $? 2 "Ping - gateway replaced by blackhole" 698 699 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122" 700 run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1" 701 if [ $? -eq 0 ]; then 702 run_cmd "$IP nexthop replace id 122 group 83" 703 run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1" 704 log_test $? 2 "Ping - group with blackhole" 705 706 run_cmd "$IP nexthop replace id 122 group 81/82" 707 run_cmd "ip netns exec me ping -c1 -w1 2001:db8:101::1" 708 log_test $? 0 "Ping - group blackhole replaced with gateways" 709 else 710 log_test 2 0 "Ping - multipath failed" 711 fi 712 713 # 714 # device only and gw + dev only mix 715 # 716 run_cmd "$IP -6 nexthop add id 85 dev veth1" 717 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 85" 718 log_test $? 0 "IPv6 route with device only nexthop" 719 check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 85 dev veth1 metric 1024" 720 721 run_cmd "$IP nexthop add id 123 group 81/85" 722 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 123" 723 log_test $? 0 "IPv6 multipath route with nexthop mix - dev only + gw" 724 check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 123 metric 1024 nexthop via 2001:db8:91::2 dev veth1 weight 1 nexthop dev veth1 weight 1" 725 726 # 727 # IPv6 route with v4 nexthop - not allowed 728 # 729 run_cmd "$IP ro delete 2001:db8:101::1/128" 730 run_cmd "$IP nexthop add id 84 via 172.16.1.1 dev veth1" 731 run_cmd "$IP ro add 2001:db8:101::1/128 nhid 84" 732 log_test $? 2 "IPv6 route can not have a v4 gateway" 733 734 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 81" 735 run_cmd "$IP nexthop replace id 81 via 172.16.1.1 dev veth1" 736 log_test $? 2 "Nexthop replace - v6 route, v4 nexthop" 737 738 run_cmd "$IP ro replace 2001:db8:101::1/128 nhid 122" 739 run_cmd "$IP nexthop replace id 81 via 172.16.1.1 dev veth1" 740 log_test $? 2 "Nexthop replace of group entry - v6 route, v4 nexthop" 741 742 $IP nexthop flush >/dev/null 2>&1 743 744 # 745 # weird IPv6 cases 746 # 747 run_cmd "$IP nexthop add id 86 via 2001:db8:91::2 dev veth1" 748 run_cmd "$IP ro add 2001:db8:101::1/128 nhid 81" 749 750 # TO-DO: 751 # existing route with old nexthop; append route with new nexthop 752 # existing route with old nexthop; replace route with new 753 # existing route with new nexthop; replace route with old 754 # route with src address and using nexthop - not allowed 755} 756 757ipv6_large_grp() 758{ 759 local ecmp=32 760 761 echo 762 echo "IPv6 large groups (x$ecmp)" 763 echo "---------------------" 764 765 check_large_grp 6 $ecmp 766 767 $IP nexthop flush >/dev/null 2>&1 768} 769 770ipv6_del_add_loop1() 771{ 772 while :; do 773 $IP nexthop del id 100 774 $IP nexthop add id 100 via 2001:db8:91::2 dev veth1 775 done >/dev/null 2>&1 776} 777 778ipv6_grp_replace_loop() 779{ 780 while :; do 781 $IP nexthop replace id 102 group 100/101 782 done >/dev/null 2>&1 783} 784 785ipv6_torture() 786{ 787 local pid1 788 local pid2 789 local pid3 790 local pid4 791 local pid5 792 793 echo 794 echo "IPv6 runtime torture" 795 echo "--------------------" 796 if [ ! -x "$(command -v mausezahn)" ]; then 797 echo "SKIP: Could not run test; need mausezahn tool" 798 return 799 fi 800 801 run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1" 802 run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth3" 803 run_cmd "$IP nexthop add id 102 group 100/101" 804 run_cmd "$IP route add 2001:db8:101::1 nhid 102" 805 run_cmd "$IP route add 2001:db8:101::2 nhid 102" 806 807 ipv6_del_add_loop1 & 808 pid1=$! 809 ipv6_grp_replace_loop & 810 pid2=$! 811 ip netns exec me ping -f 2001:db8:101::1 >/dev/null 2>&1 & 812 pid3=$! 813 ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 & 814 pid4=$! 815 ip netns exec me mausezahn veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 & 816 pid5=$! 817 818 sleep 300 819 kill -9 $pid1 $pid2 $pid3 $pid4 $pid5 820 821 # if we did not crash, success 822 log_test 0 0 "IPv6 torture test" 823} 824 825 826ipv4_fcnal() 827{ 828 local rc 829 830 echo 831 echo "IPv4 functional" 832 echo "----------------------" 833 834 # 835 # basic IPv4 ops - add, get, delete 836 # 837 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1" 838 rc=$? 839 log_test $rc 0 "Create nexthop with id, gw, dev" 840 if [ $rc -ne 0 ]; then 841 echo "Basic IPv4 create fails; can not continue" 842 return 1 843 fi 844 845 run_cmd "$IP nexthop get id 12" 846 log_test $? 0 "Get nexthop by id" 847 check_nexthop "id 12" "id 12 via 172.16.1.2 dev veth1 scope link" 848 849 run_cmd "$IP nexthop del id 12" 850 log_test $? 0 "Delete nexthop by id" 851 check_nexthop "id 52" "" 852 853 # 854 # gw, device spec 855 # 856 # gw validation, no device - fails since dev is required 857 run_cmd "$IP nexthop add id 12 via 172.16.2.3" 858 log_test $? 2 "Create nexthop - gw only" 859 860 # gw not reachable through given dev 861 run_cmd "$IP nexthop add id 13 via 172.16.3.2 dev veth1" 862 log_test $? 2 "Create nexthop - invalid gw+dev combination" 863 864 # onlink flag overrides gw+dev lookup 865 run_cmd "$IP nexthop add id 13 via 172.16.3.2 dev veth1 onlink" 866 log_test $? 0 "Create nexthop - gw+dev and onlink" 867 868 # admin down should delete nexthops 869 set -e 870 run_cmd "$IP nexthop add id 15 via 172.16.1.3 dev veth1" 871 run_cmd "$IP nexthop add id 16 via 172.16.1.4 dev veth1" 872 run_cmd "$IP nexthop add id 17 via 172.16.1.5 dev veth1" 873 run_cmd "$IP li set dev veth1 down" 874 set +e 875 check_nexthop "dev veth1" "" 876 log_test $? 0 "Nexthops removed on admin down" 877} 878 879ipv4_grp_fcnal() 880{ 881 local rc 882 883 echo 884 echo "IPv4 groups functional" 885 echo "----------------------" 886 887 # basic functionality: create a nexthop group, default weight 888 run_cmd "$IP nexthop add id 11 via 172.16.1.2 dev veth1" 889 run_cmd "$IP nexthop add id 101 group 11" 890 log_test $? 0 "Create nexthop group with single nexthop" 891 892 # get nexthop group 893 run_cmd "$IP nexthop get id 101" 894 log_test $? 0 "Get nexthop group by id" 895 check_nexthop "id 101" "id 101 group 11" 896 897 # delete nexthop group 898 run_cmd "$IP nexthop del id 101" 899 log_test $? 0 "Delete nexthop group by id" 900 check_nexthop "id 101" "" 901 902 $IP nexthop flush >/dev/null 2>&1 903 904 # 905 # create group with multiple nexthops 906 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1" 907 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1" 908 run_cmd "$IP nexthop add id 14 via 172.16.1.4 dev veth1" 909 run_cmd "$IP nexthop add id 15 via 172.16.1.5 dev veth1" 910 run_cmd "$IP nexthop add id 102 group 12/13/14/15" 911 log_test $? 0 "Nexthop group with multiple nexthops" 912 check_nexthop "id 102" "id 102 group 12/13/14/15" 913 914 # Delete nexthop in a group and group is updated 915 run_cmd "$IP nexthop del id 13" 916 check_nexthop "id 102" "id 102 group 12/14/15" 917 log_test $? 0 "Nexthop group updated when entry is deleted" 918 919 # create group with multiple weighted nexthops 920 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1" 921 run_cmd "$IP nexthop add id 103 group 12/13,2/14,3/15,4" 922 log_test $? 0 "Nexthop group with weighted nexthops" 923 check_nexthop "id 103" "id 103 group 12/13,2/14,3/15,4" 924 925 # Delete nexthop in a weighted group and group is updated 926 run_cmd "$IP nexthop del id 13" 927 check_nexthop "id 103" "id 103 group 12/14,3/15,4" 928 log_test $? 0 "Weighted nexthop group updated when entry is deleted" 929 930 # admin down - nexthop is removed from group 931 run_cmd "$IP li set dev veth1 down" 932 check_nexthop "dev veth1" "" 933 log_test $? 0 "Nexthops in groups removed on admin down" 934 935 # expect groups to have been deleted as well 936 check_nexthop "" "" 937 938 run_cmd "$IP li set dev veth1 up" 939 940 $IP nexthop flush >/dev/null 2>&1 941 942 # group with nexthops using different devices 943 set -e 944 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1" 945 run_cmd "$IP nexthop add id 13 via 172.16.1.3 dev veth1" 946 run_cmd "$IP nexthop add id 14 via 172.16.1.4 dev veth1" 947 run_cmd "$IP nexthop add id 15 via 172.16.1.5 dev veth1" 948 949 run_cmd "$IP nexthop add id 22 via 172.16.2.2 dev veth3" 950 run_cmd "$IP nexthop add id 23 via 172.16.2.3 dev veth3" 951 run_cmd "$IP nexthop add id 24 via 172.16.2.4 dev veth3" 952 run_cmd "$IP nexthop add id 25 via 172.16.2.5 dev veth3" 953 set +e 954 955 # multiple groups with same nexthop 956 run_cmd "$IP nexthop add id 104 group 12" 957 run_cmd "$IP nexthop add id 105 group 12" 958 check_nexthop "group" "id 104 group 12 id 105 group 12" 959 log_test $? 0 "Multiple groups with same nexthop" 960 961 run_cmd "$IP nexthop flush groups" 962 [ $? -ne 0 ] && return 1 963 964 # on admin down of veth1, it should be removed from the group 965 run_cmd "$IP nexthop add id 105 group 12/13/22/23/14" 966 run_cmd "$IP li set veth1 down" 967 check_nexthop "id 105" "id 105 group 22/23" 968 log_test $? 0 "Nexthops in group removed on admin down - mixed group" 969 970 run_cmd "$IP nexthop add id 106 group 105/24" 971 log_test $? 2 "Nexthop group can not have a group as an entry" 972 973 # a group can have a blackhole entry only if it is the only 974 # nexthop in the group. Needed for atomic replace with an 975 # actual nexthop group 976 run_cmd "$IP nexthop add id 31 blackhole" 977 run_cmd "$IP nexthop add id 107 group 31" 978 log_test $? 0 "Nexthop group with a blackhole entry" 979 980 run_cmd "$IP nexthop add id 108 group 31/24" 981 log_test $? 2 "Nexthop group can not have a blackhole and another nexthop" 982} 983 984ipv4_withv6_fcnal() 985{ 986 local lladdr 987 988 set -e 989 lladdr=$(get_linklocal veth2 peer) 990 run_cmd "$IP nexthop add id 11 via ${lladdr} dev veth1" 991 set +e 992 run_cmd "$IP ro add 172.16.101.1/32 nhid 11" 993 log_test $? 0 "IPv6 nexthop with IPv4 route" 994 check_route "172.16.101.1" "172.16.101.1 nhid 11 via inet6 ${lladdr} dev veth1" 995 996 set -e 997 run_cmd "$IP nexthop add id 12 via 172.16.1.2 dev veth1" 998 run_cmd "$IP nexthop add id 101 group 11/12" 999 set +e 1000 run_cmd "$IP ro replace 172.16.101.1/32 nhid 101" 1001 log_test $? 0 "IPv6 nexthop with IPv4 route" 1002 1003 check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1" 1004 1005 run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1" 1006 log_test $? 0 "IPv4 route with IPv6 gateway" 1007 check_route "172.16.101.1" "172.16.101.1 via inet6 ${lladdr} dev veth1" 1008 1009 run_cmd "$IP ro replace 172.16.101.1/32 via inet6 2001:db8:50::1 dev veth1" 1010 log_test $? 2 "IPv4 route with invalid IPv6 gateway" 1011} 1012 1013ipv4_fcnal_runtime() 1014{ 1015 local lladdr 1016 local rc 1017 1018 echo 1019 echo "IPv4 functional runtime" 1020 echo "-----------------------" 1021 1022 run_cmd "$IP nexthop add id 21 via 172.16.1.2 dev veth1" 1023 run_cmd "$IP ro add 172.16.101.1/32 nhid 21" 1024 log_test $? 0 "Route add" 1025 check_route "172.16.101.1" "172.16.101.1 nhid 21 via 172.16.1.2 dev veth1" 1026 1027 run_cmd "$IP ro delete 172.16.101.1/32 nhid 21" 1028 log_test $? 0 "Route delete" 1029 1030 # 1031 # scope mismatch 1032 # 1033 run_cmd "$IP nexthop add id 22 via 172.16.1.2 dev veth1" 1034 run_cmd "$IP ro add 172.16.101.1/32 nhid 22 scope host" 1035 log_test $? 2 "Route add - scope conflict with nexthop" 1036 1037 run_cmd "$IP nexthop replace id 22 dev veth3" 1038 run_cmd "$IP ro add 172.16.101.1/32 nhid 22 scope host" 1039 run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3" 1040 log_test $? 2 "Nexthop replace with invalid scope for existing route" 1041 1042 # 1043 # add route with nexthop and check traffic 1044 # 1045 run_cmd "$IP nexthop replace id 21 via 172.16.1.2 dev veth1" 1046 run_cmd "$IP ro replace 172.16.101.1/32 nhid 21" 1047 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1048 log_test $? 0 "Basic ping" 1049 1050 run_cmd "$IP nexthop replace id 22 via 172.16.2.2 dev veth3" 1051 run_cmd "$IP nexthop add id 122 group 21/22" 1052 run_cmd "$IP ro replace 172.16.101.1/32 nhid 122" 1053 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1054 log_test $? 0 "Ping - multipath" 1055 1056 run_cmd "$IP ro delete 172.16.101.1/32 nhid 122" 1057 1058 # 1059 # multiple default routes 1060 # - tests fib_select_default 1061 run_cmd "$IP nexthop add id 501 via 172.16.1.2 dev veth1" 1062 run_cmd "$IP ro add default nhid 501" 1063 run_cmd "$IP ro add default via 172.16.1.3 dev veth1 metric 20" 1064 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1065 log_test $? 0 "Ping - multiple default routes, nh first" 1066 1067 # flip the order 1068 run_cmd "$IP ro del default nhid 501" 1069 run_cmd "$IP ro del default via 172.16.1.3 dev veth1 metric 20" 1070 run_cmd "$IP ro add default via 172.16.1.2 dev veth1 metric 20" 1071 run_cmd "$IP nexthop replace id 501 via 172.16.1.3 dev veth1" 1072 run_cmd "$IP ro add default nhid 501 metric 20" 1073 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1074 log_test $? 0 "Ping - multiple default routes, nh second" 1075 1076 run_cmd "$IP nexthop delete nhid 501" 1077 run_cmd "$IP ro del default" 1078 1079 # 1080 # IPv4 with blackhole nexthops 1081 # 1082 run_cmd "$IP nexthop add id 23 blackhole" 1083 run_cmd "$IP ro replace 172.16.101.1/32 nhid 23" 1084 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1085 log_test $? 2 "Ping - blackhole" 1086 1087 run_cmd "$IP nexthop replace id 23 via 172.16.1.2 dev veth1" 1088 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1089 log_test $? 0 "Ping - blackhole replaced with gateway" 1090 1091 run_cmd "$IP nexthop replace id 23 blackhole" 1092 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1093 log_test $? 2 "Ping - gateway replaced by blackhole" 1094 1095 run_cmd "$IP ro replace 172.16.101.1/32 nhid 122" 1096 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1097 if [ $? -eq 0 ]; then 1098 run_cmd "$IP nexthop replace id 122 group 23" 1099 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1100 log_test $? 2 "Ping - group with blackhole" 1101 1102 run_cmd "$IP nexthop replace id 122 group 21/22" 1103 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1104 log_test $? 0 "Ping - group blackhole replaced with gateways" 1105 else 1106 log_test 2 0 "Ping - multipath failed" 1107 fi 1108 1109 # 1110 # device only and gw + dev only mix 1111 # 1112 run_cmd "$IP nexthop add id 85 dev veth1" 1113 run_cmd "$IP ro replace 172.16.101.1/32 nhid 85" 1114 log_test $? 0 "IPv4 route with device only nexthop" 1115 check_route "172.16.101.1" "172.16.101.1 nhid 85 dev veth1" 1116 1117 run_cmd "$IP nexthop add id 123 group 21/85" 1118 run_cmd "$IP ro replace 172.16.101.1/32 nhid 123" 1119 log_test $? 0 "IPv4 multipath route with nexthop mix - dev only + gw" 1120 check_route "172.16.101.1" "172.16.101.1 nhid 123 nexthop via 172.16.1.2 dev veth1 weight 1 nexthop dev veth1 weight 1" 1121 1122 # 1123 # IPv4 with IPv6 1124 # 1125 set -e 1126 lladdr=$(get_linklocal veth2 peer) 1127 run_cmd "$IP nexthop add id 24 via ${lladdr} dev veth1" 1128 set +e 1129 run_cmd "$IP ro replace 172.16.101.1/32 nhid 24" 1130 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1131 log_test $? 0 "IPv6 nexthop with IPv4 route" 1132 1133 $IP neigh sh | grep -q "${lladdr} dev veth1" 1134 if [ $? -eq 1 ]; then 1135 echo " WARNING: Neigh entry missing for ${lladdr}" 1136 $IP neigh sh | grep 'dev veth1' 1137 fi 1138 1139 $IP neigh sh | grep -q "172.16.101.1 dev eth1" 1140 if [ $? -eq 0 ]; then 1141 echo " WARNING: Neigh entry exists for 172.16.101.1" 1142 $IP neigh sh | grep 'dev veth1' 1143 fi 1144 1145 set -e 1146 run_cmd "$IP nexthop add id 25 via 172.16.1.2 dev veth1" 1147 run_cmd "$IP nexthop add id 101 group 24/25" 1148 set +e 1149 run_cmd "$IP ro replace 172.16.101.1/32 nhid 101" 1150 log_test $? 0 "IPv4 route with mixed v4-v6 multipath route" 1151 1152 check_route "172.16.101.1" "172.16.101.1 nhid 101 nexthop via inet6 ${lladdr} dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1" 1153 1154 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1155 log_test $? 0 "IPv6 nexthop with IPv4 route" 1156 1157 run_cmd "$IP ro replace 172.16.101.1/32 via inet6 ${lladdr} dev veth1" 1158 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1159 log_test $? 0 "IPv4 route with IPv6 gateway" 1160 1161 $IP neigh sh | grep -q "${lladdr} dev veth1" 1162 if [ $? -eq 1 ]; then 1163 echo " WARNING: Neigh entry missing for ${lladdr}" 1164 $IP neigh sh | grep 'dev veth1' 1165 fi 1166 1167 $IP neigh sh | grep -q "172.16.101.1 dev eth1" 1168 if [ $? -eq 0 ]; then 1169 echo " WARNING: Neigh entry exists for 172.16.101.1" 1170 $IP neigh sh | grep 'dev veth1' 1171 fi 1172 1173 run_cmd "$IP ro del 172.16.101.1/32 via inet6 ${lladdr} dev veth1" 1174 run_cmd "$IP -4 ro add default via inet6 ${lladdr} dev veth1" 1175 run_cmd "ip netns exec me ping -c1 -w1 172.16.101.1" 1176 log_test $? 0 "IPv4 default route with IPv6 gateway" 1177 1178 # 1179 # MPLS as an example of LWT encap 1180 # 1181 run_cmd "$IP nexthop add id 51 encap mpls 101 via 172.16.1.2 dev veth1" 1182 log_test $? 0 "IPv4 route with MPLS encap" 1183 check_nexthop "id 51" "id 51 encap mpls 101 via 172.16.1.2 dev veth1 scope link" 1184 log_test $? 0 "IPv4 route with MPLS encap - check" 1185 1186 run_cmd "$IP nexthop add id 52 encap mpls 102 via inet6 2001:db8:91::2 dev veth1" 1187 log_test $? 0 "IPv4 route with MPLS encap and v6 gateway" 1188 check_nexthop "id 52" "id 52 encap mpls 102 via 2001:db8:91::2 dev veth1 scope link" 1189 log_test $? 0 "IPv4 route with MPLS encap, v6 gw - check" 1190} 1191 1192ipv4_large_grp() 1193{ 1194 local ecmp=32 1195 1196 echo 1197 echo "IPv4 large groups (x$ecmp)" 1198 echo "---------------------" 1199 1200 check_large_grp 4 $ecmp 1201 1202 $IP nexthop flush >/dev/null 2>&1 1203} 1204 1205sysctl_nexthop_compat_mode_check() 1206{ 1207 local sysctlname="net.ipv4.nexthop_compat_mode" 1208 local lprefix=$1 1209 1210 IPE="ip netns exec me" 1211 1212 $IPE sysctl -q $sysctlname 2>&1 >/dev/null 1213 if [ $? -ne 0 ]; then 1214 echo "SKIP: kernel lacks nexthop compat mode sysctl control" 1215 return $ksft_skip 1216 fi 1217 1218 out=$($IPE sysctl $sysctlname 2>/dev/null) 1219 log_test $? 0 "$lprefix default nexthop compat mode check" 1220 check_output "${out}" "$sysctlname = 1" 1221} 1222 1223sysctl_nexthop_compat_mode_set() 1224{ 1225 local sysctlname="net.ipv4.nexthop_compat_mode" 1226 local mode=$1 1227 local lprefix=$2 1228 1229 IPE="ip netns exec me" 1230 1231 out=$($IPE sysctl -w $sysctlname=$mode) 1232 log_test $? 0 "$lprefix set compat mode - $mode" 1233 check_output "${out}" "net.ipv4.nexthop_compat_mode = $mode" 1234} 1235 1236ipv6_compat_mode() 1237{ 1238 local rc 1239 1240 echo 1241 echo "IPv6 nexthop api compat mode test" 1242 echo "--------------------------------" 1243 1244 sysctl_nexthop_compat_mode_check "IPv6" 1245 if [ $? -eq $ksft_skip ]; then 1246 return $ksft_skip 1247 fi 1248 1249 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1" 1250 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1" 1251 run_cmd "$IP nexthop add id 122 group 62/63" 1252 ipmout=$(start_ip_monitor route) 1253 1254 run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 122" 1255 # route add notification should contain expanded nexthops 1256 stop_ip_monitor $ipmout 3 1257 log_test $? 0 "IPv6 compat mode on - route add notification" 1258 1259 # route dump should contain expanded nexthops 1260 check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 122 metric 1024 nexthop via 2001:db8:91::2 dev veth1 weight 1 nexthop via 2001:db8:91::3 dev veth1 weight 1" 1261 log_test $? 0 "IPv6 compat mode on - route dump" 1262 1263 # change in nexthop group should generate route notification 1264 run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1" 1265 ipmout=$(start_ip_monitor route) 1266 run_cmd "$IP nexthop replace id 122 group 62/64" 1267 stop_ip_monitor $ipmout 3 1268 1269 log_test $? 0 "IPv6 compat mode on - nexthop change" 1270 1271 # set compat mode off 1272 sysctl_nexthop_compat_mode_set 0 "IPv6" 1273 1274 run_cmd "$IP -6 ro del 2001:db8:101::1/128 nhid 122" 1275 1276 run_cmd "$IP nexthop add id 62 via 2001:db8:91::2 dev veth1" 1277 run_cmd "$IP nexthop add id 63 via 2001:db8:91::3 dev veth1" 1278 run_cmd "$IP nexthop add id 122 group 62/63" 1279 ipmout=$(start_ip_monitor route) 1280 1281 run_cmd "$IP -6 ro add 2001:db8:101::1/128 nhid 122" 1282 # route add notification should not contain expanded nexthops 1283 stop_ip_monitor $ipmout 1 1284 log_test $? 0 "IPv6 compat mode off - route add notification" 1285 1286 # route dump should not contain expanded nexthops 1287 check_route6 "2001:db8:101::1" "2001:db8:101::1 nhid 122 metric 1024" 1288 log_test $? 0 "IPv6 compat mode off - route dump" 1289 1290 # change in nexthop group should not generate route notification 1291 run_cmd "$IP nexthop add id 64 via 2001:db8:91::4 dev veth1" 1292 ipmout=$(start_ip_monitor route) 1293 run_cmd "$IP nexthop replace id 122 group 62/64" 1294 stop_ip_monitor $ipmout 0 1295 log_test $? 0 "IPv6 compat mode off - nexthop change" 1296 1297 # nexthop delete should not generate route notification 1298 ipmout=$(start_ip_monitor route) 1299 run_cmd "$IP nexthop del id 122" 1300 stop_ip_monitor $ipmout 0 1301 log_test $? 0 "IPv6 compat mode off - nexthop delete" 1302 1303 # set compat mode back on 1304 sysctl_nexthop_compat_mode_set 1 "IPv6" 1305} 1306 1307ipv4_compat_mode() 1308{ 1309 local rc 1310 1311 echo 1312 echo "IPv4 nexthop api compat mode" 1313 echo "----------------------------" 1314 1315 sysctl_nexthop_compat_mode_check "IPv4" 1316 if [ $? -eq $ksft_skip ]; then 1317 return $ksft_skip 1318 fi 1319 1320 run_cmd "$IP nexthop add id 21 via 172.16.1.2 dev veth1" 1321 run_cmd "$IP nexthop add id 22 via 172.16.1.2 dev veth1" 1322 run_cmd "$IP nexthop add id 122 group 21/22" 1323 ipmout=$(start_ip_monitor route) 1324 1325 run_cmd "$IP ro add 172.16.101.1/32 nhid 122" 1326 stop_ip_monitor $ipmout 3 1327 1328 # route add notification should contain expanded nexthops 1329 log_test $? 0 "IPv4 compat mode on - route add notification" 1330 1331 # route dump should contain expanded nexthops 1332 check_route "172.16.101.1" "172.16.101.1 nhid 122 nexthop via 172.16.1.2 dev veth1 weight 1 nexthop via 172.16.1.2 dev veth1 weight 1" 1333 log_test $? 0 "IPv4 compat mode on - route dump" 1334 1335 # change in nexthop group should generate route notification 1336 run_cmd "$IP nexthop add id 23 via 172.16.1.3 dev veth1" 1337 ipmout=$(start_ip_monitor route) 1338 run_cmd "$IP nexthop replace id 122 group 21/23" 1339 stop_ip_monitor $ipmout 3 1340 log_test $? 0 "IPv4 compat mode on - nexthop change" 1341 1342 sysctl_nexthop_compat_mode_set 0 "IPv4" 1343 1344 # cleanup 1345 run_cmd "$IP ro del 172.16.101.1/32 nhid 122" 1346 1347 ipmout=$(start_ip_monitor route) 1348 run_cmd "$IP ro add 172.16.101.1/32 nhid 122" 1349 stop_ip_monitor $ipmout 1 1350 # route add notification should not contain expanded nexthops 1351 log_test $? 0 "IPv4 compat mode off - route add notification" 1352 1353 # route dump should not contain expanded nexthops 1354 check_route "172.16.101.1" "172.16.101.1 nhid 122" 1355 log_test $? 0 "IPv4 compat mode off - route dump" 1356 1357 # change in nexthop group should not generate route notification 1358 ipmout=$(start_ip_monitor route) 1359 run_cmd "$IP nexthop replace id 122 group 21/22" 1360 stop_ip_monitor $ipmout 0 1361 log_test $? 0 "IPv4 compat mode off - nexthop change" 1362 1363 # nexthop delete should not generate route notification 1364 ipmout=$(start_ip_monitor route) 1365 run_cmd "$IP nexthop del id 122" 1366 stop_ip_monitor $ipmout 0 1367 log_test $? 0 "IPv4 compat mode off - nexthop delete" 1368 1369 sysctl_nexthop_compat_mode_set 1 "IPv4" 1370} 1371 1372ipv4_del_add_loop1() 1373{ 1374 while :; do 1375 $IP nexthop del id 100 1376 $IP nexthop add id 100 via 172.16.1.2 dev veth1 1377 done >/dev/null 2>&1 1378} 1379 1380ipv4_grp_replace_loop() 1381{ 1382 while :; do 1383 $IP nexthop replace id 102 group 100/101 1384 done >/dev/null 2>&1 1385} 1386 1387ipv4_torture() 1388{ 1389 local pid1 1390 local pid2 1391 local pid3 1392 local pid4 1393 local pid5 1394 1395 echo 1396 echo "IPv4 runtime torture" 1397 echo "--------------------" 1398 if [ ! -x "$(command -v mausezahn)" ]; then 1399 echo "SKIP: Could not run test; need mausezahn tool" 1400 return 1401 fi 1402 1403 run_cmd "$IP nexthop add id 100 via 172.16.1.2 dev veth1" 1404 run_cmd "$IP nexthop add id 101 via 172.16.2.2 dev veth3" 1405 run_cmd "$IP nexthop add id 102 group 100/101" 1406 run_cmd "$IP route add 172.16.101.1 nhid 102" 1407 run_cmd "$IP route add 172.16.101.2 nhid 102" 1408 1409 ipv4_del_add_loop1 & 1410 pid1=$! 1411 ipv4_grp_replace_loop & 1412 pid2=$! 1413 ip netns exec me ping -f 172.16.101.1 >/dev/null 2>&1 & 1414 pid3=$! 1415 ip netns exec me ping -f 172.16.101.2 >/dev/null 2>&1 & 1416 pid4=$! 1417 ip netns exec me mausezahn veth1 -B 172.16.101.2 -A 172.16.1.1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 & 1418 pid5=$! 1419 1420 sleep 300 1421 kill -9 $pid1 $pid2 $pid3 $pid4 $pid5 1422 1423 # if we did not crash, success 1424 log_test 0 0 "IPv4 torture test" 1425} 1426 1427basic() 1428{ 1429 echo 1430 echo "Basic functional tests" 1431 echo "----------------------" 1432 run_cmd "$IP nexthop ls" 1433 log_test $? 0 "List with nothing defined" 1434 1435 run_cmd "$IP nexthop get id 1" 1436 log_test $? 2 "Nexthop get on non-existent id" 1437 1438 # attempt to create nh without a device or gw - fails 1439 run_cmd "$IP nexthop add id 1" 1440 log_test $? 2 "Nexthop with no device or gateway" 1441 1442 # attempt to create nh with down device - fails 1443 $IP li set veth1 down 1444 run_cmd "$IP nexthop add id 1 dev veth1" 1445 log_test $? 2 "Nexthop with down device" 1446 1447 # create nh with linkdown device - fails 1448 $IP li set veth1 up 1449 ip -netns peer li set veth2 down 1450 run_cmd "$IP nexthop add id 1 dev veth1" 1451 log_test $? 2 "Nexthop with device that is linkdown" 1452 ip -netns peer li set veth2 up 1453 1454 # device only 1455 run_cmd "$IP nexthop add id 1 dev veth1" 1456 log_test $? 0 "Nexthop with device only" 1457 1458 # create nh with duplicate id 1459 run_cmd "$IP nexthop add id 1 dev veth3" 1460 log_test $? 2 "Nexthop with duplicate id" 1461 1462 # blackhole nexthop 1463 run_cmd "$IP nexthop add id 2 blackhole" 1464 log_test $? 0 "Blackhole nexthop" 1465 1466 # blackhole nexthop can not have other specs 1467 run_cmd "$IP nexthop replace id 2 blackhole dev veth1" 1468 log_test $? 2 "Blackhole nexthop with other attributes" 1469 1470 # 1471 # groups 1472 # 1473 1474 run_cmd "$IP nexthop add id 101 group 1" 1475 log_test $? 0 "Create group" 1476 1477 run_cmd "$IP nexthop add id 102 group 2" 1478 log_test $? 0 "Create group with blackhole nexthop" 1479 1480 # multipath group can not have a blackhole as 1 path 1481 run_cmd "$IP nexthop add id 103 group 1/2" 1482 log_test $? 2 "Create multipath group where 1 path is a blackhole" 1483 1484 # multipath group can not have a member replaced by a blackhole 1485 run_cmd "$IP nexthop replace id 2 dev veth3" 1486 run_cmd "$IP nexthop replace id 102 group 1/2" 1487 run_cmd "$IP nexthop replace id 2 blackhole" 1488 log_test $? 2 "Multipath group can not have a member replaced by blackhole" 1489 1490 # attempt to create group with non-existent nexthop 1491 run_cmd "$IP nexthop add id 103 group 12" 1492 log_test $? 2 "Create group with non-existent nexthop" 1493 1494 # attempt to create group with same nexthop 1495 run_cmd "$IP nexthop add id 103 group 1/1" 1496 log_test $? 2 "Create group with same nexthop multiple times" 1497 1498 # replace nexthop with a group - fails 1499 run_cmd "$IP nexthop replace id 2 group 1" 1500 log_test $? 2 "Replace nexthop with nexthop group" 1501 1502 # replace nexthop group with a nexthop - fails 1503 run_cmd "$IP nexthop replace id 101 dev veth1" 1504 log_test $? 2 "Replace nexthop group with nexthop" 1505 1506 # nexthop group with other attributes fail 1507 run_cmd "$IP nexthop add id 104 group 1 dev veth1" 1508 log_test $? 2 "Nexthop group and device" 1509 1510 # Tests to ensure that flushing works as expected. 1511 run_cmd "$IP nexthop add id 105 blackhole proto 99" 1512 run_cmd "$IP nexthop add id 106 blackhole proto 100" 1513 run_cmd "$IP nexthop add id 107 blackhole proto 99" 1514 run_cmd "$IP nexthop flush proto 99" 1515 check_nexthop "id 105" "" 1516 check_nexthop "id 106" "id 106 blackhole proto 100" 1517 check_nexthop "id 107" "" 1518 run_cmd "$IP nexthop flush proto 100" 1519 check_nexthop "id 106" "" 1520 1521 run_cmd "$IP nexthop flush proto 100" 1522 log_test $? 0 "Test proto flush" 1523 1524 run_cmd "$IP nexthop add id 104 group 1 blackhole" 1525 log_test $? 2 "Nexthop group and blackhole" 1526 1527 $IP nexthop flush >/dev/null 2>&1 1528} 1529 1530################################################################################ 1531# usage 1532 1533usage() 1534{ 1535 cat <<EOF 1536usage: ${0##*/} OPTS 1537 1538 -t <test> Test(s) to run (default: all) 1539 (options: $ALL_TESTS) 1540 -4 IPv4 tests only 1541 -6 IPv6 tests only 1542 -p Pause on fail 1543 -P Pause after each test before cleanup 1544 -v verbose mode (show commands and output) 1545 1546 Runtime test 1547 -n num Number of nexthops to target 1548 -N Use new style to install routes in DUT 1549 1550done 1551EOF 1552} 1553 1554################################################################################ 1555# main 1556 1557while getopts :t:pP46hv o 1558do 1559 case $o in 1560 t) TESTS=$OPTARG;; 1561 4) TESTS=${IPV4_TESTS};; 1562 6) TESTS=${IPV6_TESTS};; 1563 p) PAUSE_ON_FAIL=yes;; 1564 P) PAUSE=yes;; 1565 v) VERBOSE=$(($VERBOSE + 1));; 1566 h) usage; exit 0;; 1567 *) usage; exit 1;; 1568 esac 1569done 1570 1571# make sure we don't pause twice 1572[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no 1573 1574if [ "$(id -u)" -ne 0 ];then 1575 echo "SKIP: Need root privileges" 1576 exit $ksft_skip; 1577fi 1578 1579if [ ! -x "$(command -v ip)" ]; then 1580 echo "SKIP: Could not run test without ip tool" 1581 exit $ksft_skip 1582fi 1583 1584ip help 2>&1 | grep -q nexthop 1585if [ $? -ne 0 ]; then 1586 echo "SKIP: iproute2 too old, missing nexthop command" 1587 exit $ksft_skip 1588fi 1589 1590out=$(ip nexthop ls 2>&1 | grep -q "Operation not supported") 1591if [ $? -eq 0 ]; then 1592 echo "SKIP: kernel lacks nexthop support" 1593 exit $ksft_skip 1594fi 1595 1596for t in $TESTS 1597do 1598 case $t in 1599 none) IP="ip -netns peer"; setup; exit 0;; 1600 *) setup; $t; cleanup;; 1601 esac 1602done 1603 1604if [ "$TESTS" != "none" ]; then 1605 printf "\nTests passed: %3d\n" ${nsuccess} 1606 printf "Tests failed: %3d\n" ${nfail} 1607fi 1608 1609exit $ret 1610