1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4# This test is for checking IPv4 and IPv6 FIB behavior in response to 5# different events. 6 7ret=0 8# Kselftest framework requirement - SKIP code is 4. 9ksft_skip=4 10 11# all tests in this script. Can be overridden with -t option 12TESTS="unregister down carrier nexthop suppress ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr" 13 14VERBOSE=0 15PAUSE_ON_FAIL=no 16PAUSE=no 17IP="ip -netns ns1" 18NS_EXEC="ip netns exec ns1" 19 20which ping6 > /dev/null 2>&1 && ping6=$(which ping6) || ping6=$(which ping) 21 22log_test() 23{ 24 local rc=$1 25 local expected=$2 26 local msg="$3" 27 28 if [ ${rc} -eq ${expected} ]; then 29 printf " TEST: %-60s [ OK ]\n" "${msg}" 30 nsuccess=$((nsuccess+1)) 31 else 32 ret=1 33 nfail=$((nfail+1)) 34 printf " TEST: %-60s [FAIL]\n" "${msg}" 35 if [ "${PAUSE_ON_FAIL}" = "yes" ]; then 36 echo 37 echo "hit enter to continue, 'q' to quit" 38 read a 39 [ "$a" = "q" ] && exit 1 40 fi 41 fi 42 43 if [ "${PAUSE}" = "yes" ]; then 44 echo 45 echo "hit enter to continue, 'q' to quit" 46 read a 47 [ "$a" = "q" ] && exit 1 48 fi 49} 50 51setup() 52{ 53 set -e 54 ip netns add ns1 55 ip netns set ns1 auto 56 $IP link set dev lo up 57 ip netns exec ns1 sysctl -qw net.ipv4.ip_forward=1 58 ip netns exec ns1 sysctl -qw net.ipv6.conf.all.forwarding=1 59 60 $IP link add dummy0 type dummy 61 $IP link set dev dummy0 up 62 $IP address add 198.51.100.1/24 dev dummy0 63 $IP -6 address add 2001:db8:1::1/64 dev dummy0 64 set +e 65 66} 67 68cleanup() 69{ 70 $IP link del dev dummy0 &> /dev/null 71 ip netns del ns1 72 ip netns del ns2 &> /dev/null 73} 74 75get_linklocal() 76{ 77 local dev=$1 78 local addr 79 80 addr=$($IP -6 -br addr show dev ${dev} | \ 81 awk '{ 82 for (i = 3; i <= NF; ++i) { 83 if ($i ~ /^fe80/) 84 print $i 85 } 86 }' 87 ) 88 addr=${addr/\/*} 89 90 [ -z "$addr" ] && return 1 91 92 echo $addr 93 94 return 0 95} 96 97fib_unreg_unicast_test() 98{ 99 echo 100 echo "Single path route test" 101 102 setup 103 104 echo " Start point" 105 $IP route get fibmatch 198.51.100.2 &> /dev/null 106 log_test $? 0 "IPv4 fibmatch" 107 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 108 log_test $? 0 "IPv6 fibmatch" 109 110 set -e 111 $IP link del dev dummy0 112 set +e 113 114 echo " Nexthop device deleted" 115 $IP route get fibmatch 198.51.100.2 &> /dev/null 116 log_test $? 2 "IPv4 fibmatch - no route" 117 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 118 log_test $? 2 "IPv6 fibmatch - no route" 119 120 cleanup 121} 122 123fib_unreg_multipath_test() 124{ 125 126 echo 127 echo "Multipath route test" 128 129 setup 130 131 set -e 132 $IP link add dummy1 type dummy 133 $IP link set dev dummy1 up 134 $IP address add 192.0.2.1/24 dev dummy1 135 $IP -6 address add 2001:db8:2::1/64 dev dummy1 136 137 $IP route add 203.0.113.0/24 \ 138 nexthop via 198.51.100.2 dev dummy0 \ 139 nexthop via 192.0.2.2 dev dummy1 140 $IP -6 route add 2001:db8:3::/64 \ 141 nexthop via 2001:db8:1::2 dev dummy0 \ 142 nexthop via 2001:db8:2::2 dev dummy1 143 set +e 144 145 echo " Start point" 146 $IP route get fibmatch 203.0.113.1 &> /dev/null 147 log_test $? 0 "IPv4 fibmatch" 148 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 149 log_test $? 0 "IPv6 fibmatch" 150 151 set -e 152 $IP link del dev dummy0 153 set +e 154 155 echo " One nexthop device deleted" 156 $IP route get fibmatch 203.0.113.1 &> /dev/null 157 log_test $? 2 "IPv4 - multipath route removed on delete" 158 159 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 160 # In IPv6 we do not flush the entire multipath route. 161 log_test $? 0 "IPv6 - multipath down to single path" 162 163 set -e 164 $IP link del dev dummy1 165 set +e 166 167 echo " Second nexthop device deleted" 168 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 169 log_test $? 2 "IPv6 - no route" 170 171 cleanup 172} 173 174fib_unreg_test() 175{ 176 fib_unreg_unicast_test 177 fib_unreg_multipath_test 178} 179 180fib_down_unicast_test() 181{ 182 echo 183 echo "Single path, admin down" 184 185 setup 186 187 echo " Start point" 188 $IP route get fibmatch 198.51.100.2 &> /dev/null 189 log_test $? 0 "IPv4 fibmatch" 190 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 191 log_test $? 0 "IPv6 fibmatch" 192 193 set -e 194 $IP link set dev dummy0 down 195 set +e 196 197 echo " Route deleted on down" 198 $IP route get fibmatch 198.51.100.2 &> /dev/null 199 log_test $? 2 "IPv4 fibmatch" 200 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 201 log_test $? 2 "IPv6 fibmatch" 202 203 cleanup 204} 205 206fib_down_multipath_test_do() 207{ 208 local down_dev=$1 209 local up_dev=$2 210 211 $IP route get fibmatch 203.0.113.1 \ 212 oif $down_dev &> /dev/null 213 log_test $? 2 "IPv4 fibmatch on down device" 214 $IP -6 route get fibmatch 2001:db8:3::1 \ 215 oif $down_dev &> /dev/null 216 log_test $? 2 "IPv6 fibmatch on down device" 217 218 $IP route get fibmatch 203.0.113.1 \ 219 oif $up_dev &> /dev/null 220 log_test $? 0 "IPv4 fibmatch on up device" 221 $IP -6 route get fibmatch 2001:db8:3::1 \ 222 oif $up_dev &> /dev/null 223 log_test $? 0 "IPv6 fibmatch on up device" 224 225 $IP route get fibmatch 203.0.113.1 | \ 226 grep $down_dev | grep -q "dead linkdown" 227 log_test $? 0 "IPv4 flags on down device" 228 $IP -6 route get fibmatch 2001:db8:3::1 | \ 229 grep $down_dev | grep -q "dead linkdown" 230 log_test $? 0 "IPv6 flags on down device" 231 232 $IP route get fibmatch 203.0.113.1 | \ 233 grep $up_dev | grep -q "dead linkdown" 234 log_test $? 1 "IPv4 flags on up device" 235 $IP -6 route get fibmatch 2001:db8:3::1 | \ 236 grep $up_dev | grep -q "dead linkdown" 237 log_test $? 1 "IPv6 flags on up device" 238} 239 240fib_down_multipath_test() 241{ 242 echo 243 echo "Admin down multipath" 244 245 setup 246 247 set -e 248 $IP link add dummy1 type dummy 249 $IP link set dev dummy1 up 250 251 $IP address add 192.0.2.1/24 dev dummy1 252 $IP -6 address add 2001:db8:2::1/64 dev dummy1 253 254 $IP route add 203.0.113.0/24 \ 255 nexthop via 198.51.100.2 dev dummy0 \ 256 nexthop via 192.0.2.2 dev dummy1 257 $IP -6 route add 2001:db8:3::/64 \ 258 nexthop via 2001:db8:1::2 dev dummy0 \ 259 nexthop via 2001:db8:2::2 dev dummy1 260 set +e 261 262 echo " Verify start point" 263 $IP route get fibmatch 203.0.113.1 &> /dev/null 264 log_test $? 0 "IPv4 fibmatch" 265 266 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 267 log_test $? 0 "IPv6 fibmatch" 268 269 set -e 270 $IP link set dev dummy0 down 271 set +e 272 273 echo " One device down, one up" 274 fib_down_multipath_test_do "dummy0" "dummy1" 275 276 set -e 277 $IP link set dev dummy0 up 278 $IP link set dev dummy1 down 279 set +e 280 281 echo " Other device down and up" 282 fib_down_multipath_test_do "dummy1" "dummy0" 283 284 set -e 285 $IP link set dev dummy0 down 286 set +e 287 288 echo " Both devices down" 289 $IP route get fibmatch 203.0.113.1 &> /dev/null 290 log_test $? 2 "IPv4 fibmatch" 291 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 292 log_test $? 2 "IPv6 fibmatch" 293 294 $IP link del dev dummy1 295 cleanup 296} 297 298fib_down_test() 299{ 300 fib_down_unicast_test 301 fib_down_multipath_test 302} 303 304# Local routes should not be affected when carrier changes. 305fib_carrier_local_test() 306{ 307 echo 308 echo "Local carrier tests - single path" 309 310 setup 311 312 set -e 313 $IP link set dev dummy0 carrier on 314 set +e 315 316 echo " Start point" 317 $IP route get fibmatch 198.51.100.1 &> /dev/null 318 log_test $? 0 "IPv4 fibmatch" 319 $IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null 320 log_test $? 0 "IPv6 fibmatch" 321 322 $IP route get fibmatch 198.51.100.1 | \ 323 grep -q "linkdown" 324 log_test $? 1 "IPv4 - no linkdown flag" 325 $IP -6 route get fibmatch 2001:db8:1::1 | \ 326 grep -q "linkdown" 327 log_test $? 1 "IPv6 - no linkdown flag" 328 329 set -e 330 $IP link set dev dummy0 carrier off 331 sleep 1 332 set +e 333 334 echo " Carrier off on nexthop" 335 $IP route get fibmatch 198.51.100.1 &> /dev/null 336 log_test $? 0 "IPv4 fibmatch" 337 $IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null 338 log_test $? 0 "IPv6 fibmatch" 339 340 $IP route get fibmatch 198.51.100.1 | \ 341 grep -q "linkdown" 342 log_test $? 1 "IPv4 - linkdown flag set" 343 $IP -6 route get fibmatch 2001:db8:1::1 | \ 344 grep -q "linkdown" 345 log_test $? 1 "IPv6 - linkdown flag set" 346 347 set -e 348 $IP address add 192.0.2.1/24 dev dummy0 349 $IP -6 address add 2001:db8:2::1/64 dev dummy0 350 set +e 351 352 echo " Route to local address with carrier down" 353 $IP route get fibmatch 192.0.2.1 &> /dev/null 354 log_test $? 0 "IPv4 fibmatch" 355 $IP -6 route get fibmatch 2001:db8:2::1 &> /dev/null 356 log_test $? 0 "IPv6 fibmatch" 357 358 $IP route get fibmatch 192.0.2.1 | \ 359 grep -q "linkdown" 360 log_test $? 1 "IPv4 linkdown flag set" 361 $IP -6 route get fibmatch 2001:db8:2::1 | \ 362 grep -q "linkdown" 363 log_test $? 1 "IPv6 linkdown flag set" 364 365 cleanup 366} 367 368fib_carrier_unicast_test() 369{ 370 ret=0 371 372 echo 373 echo "Single path route carrier test" 374 375 setup 376 377 set -e 378 $IP link set dev dummy0 carrier on 379 set +e 380 381 echo " Start point" 382 $IP route get fibmatch 198.51.100.2 &> /dev/null 383 log_test $? 0 "IPv4 fibmatch" 384 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 385 log_test $? 0 "IPv6 fibmatch" 386 387 $IP route get fibmatch 198.51.100.2 | \ 388 grep -q "linkdown" 389 log_test $? 1 "IPv4 no linkdown flag" 390 $IP -6 route get fibmatch 2001:db8:1::2 | \ 391 grep -q "linkdown" 392 log_test $? 1 "IPv6 no linkdown flag" 393 394 set -e 395 $IP link set dev dummy0 carrier off 396 sleep 1 397 set +e 398 399 echo " Carrier down" 400 $IP route get fibmatch 198.51.100.2 &> /dev/null 401 log_test $? 0 "IPv4 fibmatch" 402 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 403 log_test $? 0 "IPv6 fibmatch" 404 405 $IP route get fibmatch 198.51.100.2 | \ 406 grep -q "linkdown" 407 log_test $? 0 "IPv4 linkdown flag set" 408 $IP -6 route get fibmatch 2001:db8:1::2 | \ 409 grep -q "linkdown" 410 log_test $? 0 "IPv6 linkdown flag set" 411 412 set -e 413 $IP address add 192.0.2.1/24 dev dummy0 414 $IP -6 address add 2001:db8:2::1/64 dev dummy0 415 set +e 416 417 echo " Second address added with carrier down" 418 $IP route get fibmatch 192.0.2.2 &> /dev/null 419 log_test $? 0 "IPv4 fibmatch" 420 $IP -6 route get fibmatch 2001:db8:2::2 &> /dev/null 421 log_test $? 0 "IPv6 fibmatch" 422 423 $IP route get fibmatch 192.0.2.2 | \ 424 grep -q "linkdown" 425 log_test $? 0 "IPv4 linkdown flag set" 426 $IP -6 route get fibmatch 2001:db8:2::2 | \ 427 grep -q "linkdown" 428 log_test $? 0 "IPv6 linkdown flag set" 429 430 cleanup 431} 432 433fib_carrier_test() 434{ 435 fib_carrier_local_test 436 fib_carrier_unicast_test 437} 438 439fib_rp_filter_test() 440{ 441 echo 442 echo "IPv4 rp_filter tests" 443 444 setup 445 446 set -e 447 $IP link set dev lo address 52:54:00:6a:c7:5e 448 $IP link set dummy0 address 52:54:00:6a:c7:5e 449 $IP link add dummy1 type dummy 450 $IP link set dummy1 address 52:54:00:6a:c7:5e 451 $IP link set dev dummy1 up 452 $NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1 453 $NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1 454 $NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1 455 456 $NS_EXEC tc qd add dev dummy1 parent root handle 1: fq_codel 457 $NS_EXEC tc filter add dev dummy1 parent 1: protocol arp basic action mirred egress redirect dev lo 458 $NS_EXEC tc filter add dev dummy1 parent 1: protocol ip basic action mirred egress redirect dev lo 459 set +e 460 461 run_cmd "ip netns exec ns1 ping -I dummy1 -w1 -c1 198.51.100.1" 462 log_test $? 0 "rp_filter passes local packets" 463 464 run_cmd "ip netns exec ns1 ping -I dummy1 -w1 -c1 127.0.0.1" 465 log_test $? 0 "rp_filter passes loopback packets" 466 467 cleanup 468} 469 470################################################################################ 471# Tests on nexthop spec 472 473# run 'ip route add' with given spec 474add_rt() 475{ 476 local desc="$1" 477 local erc=$2 478 local vrf=$3 479 local pfx=$4 480 local gw=$5 481 local dev=$6 482 local cmd out rc 483 484 [ "$vrf" = "-" ] && vrf="default" 485 [ -n "$gw" ] && gw="via $gw" 486 [ -n "$dev" ] && dev="dev $dev" 487 488 cmd="$IP route add vrf $vrf $pfx $gw $dev" 489 if [ "$VERBOSE" = "1" ]; then 490 printf "\n COMMAND: $cmd\n" 491 fi 492 493 out=$(eval $cmd 2>&1) 494 rc=$? 495 if [ "$VERBOSE" = "1" -a -n "$out" ]; then 496 echo " $out" 497 fi 498 log_test $rc $erc "$desc" 499} 500 501fib4_nexthop() 502{ 503 echo 504 echo "IPv4 nexthop tests" 505 506 echo "<<< write me >>>" 507} 508 509fib6_nexthop() 510{ 511 local lldummy=$(get_linklocal dummy0) 512 local llv1=$(get_linklocal dummy0) 513 514 if [ -z "$lldummy" ]; then 515 echo "Failed to get linklocal address for dummy0" 516 return 1 517 fi 518 if [ -z "$llv1" ]; then 519 echo "Failed to get linklocal address for veth1" 520 return 1 521 fi 522 523 echo 524 echo "IPv6 nexthop tests" 525 526 add_rt "Directly connected nexthop, unicast address" 0 \ 527 - 2001:db8:101::/64 2001:db8:1::2 528 add_rt "Directly connected nexthop, unicast address with device" 0 \ 529 - 2001:db8:102::/64 2001:db8:1::2 "dummy0" 530 add_rt "Gateway is linklocal address" 0 \ 531 - 2001:db8:103::1/64 $llv1 "veth0" 532 533 # fails because LL address requires a device 534 add_rt "Gateway is linklocal address, no device" 2 \ 535 - 2001:db8:104::1/64 $llv1 536 537 # local address can not be a gateway 538 add_rt "Gateway can not be local unicast address" 2 \ 539 - 2001:db8:105::/64 2001:db8:1::1 540 add_rt "Gateway can not be local unicast address, with device" 2 \ 541 - 2001:db8:106::/64 2001:db8:1::1 "dummy0" 542 add_rt "Gateway can not be a local linklocal address" 2 \ 543 - 2001:db8:107::1/64 $lldummy "dummy0" 544 545 # VRF tests 546 add_rt "Gateway can be local address in a VRF" 0 \ 547 - 2001:db8:108::/64 2001:db8:51::2 548 add_rt "Gateway can be local address in a VRF, with device" 0 \ 549 - 2001:db8:109::/64 2001:db8:51::2 "veth0" 550 add_rt "Gateway can be local linklocal address in a VRF" 0 \ 551 - 2001:db8:110::1/64 $llv1 "veth0" 552 553 add_rt "Redirect to VRF lookup" 0 \ 554 - 2001:db8:111::/64 "" "red" 555 556 add_rt "VRF route, gateway can be local address in default VRF" 0 \ 557 red 2001:db8:112::/64 2001:db8:51::1 558 559 # local address in same VRF fails 560 add_rt "VRF route, gateway can not be a local address" 2 \ 561 red 2001:db8:113::1/64 2001:db8:2::1 562 add_rt "VRF route, gateway can not be a local addr with device" 2 \ 563 red 2001:db8:114::1/64 2001:db8:2::1 "dummy1" 564} 565 566# Default VRF: 567# dummy0 - 198.51.100.1/24 2001:db8:1::1/64 568# veth0 - 192.0.2.1/24 2001:db8:51::1/64 569# 570# VRF red: 571# dummy1 - 192.168.2.1/24 2001:db8:2::1/64 572# veth1 - 192.0.2.2/24 2001:db8:51::2/64 573# 574# [ dummy0 veth0 ]--[ veth1 dummy1 ] 575 576fib_nexthop_test() 577{ 578 setup 579 580 set -e 581 582 $IP -4 rule add pref 32765 table local 583 $IP -4 rule del pref 0 584 $IP -6 rule add pref 32765 table local 585 $IP -6 rule del pref 0 586 587 $IP link add red type vrf table 1 588 $IP link set red up 589 $IP -4 route add vrf red unreachable default metric 4278198272 590 $IP -6 route add vrf red unreachable default metric 4278198272 591 592 $IP link add veth0 type veth peer name veth1 593 $IP link set dev veth0 up 594 $IP address add 192.0.2.1/24 dev veth0 595 $IP -6 address add 2001:db8:51::1/64 dev veth0 596 597 $IP link set dev veth1 vrf red up 598 $IP address add 192.0.2.2/24 dev veth1 599 $IP -6 address add 2001:db8:51::2/64 dev veth1 600 601 $IP link add dummy1 type dummy 602 $IP link set dev dummy1 vrf red up 603 $IP address add 192.168.2.1/24 dev dummy1 604 $IP -6 address add 2001:db8:2::1/64 dev dummy1 605 set +e 606 607 sleep 1 608 fib4_nexthop 609 fib6_nexthop 610 611 ( 612 $IP link del dev dummy1 613 $IP link del veth0 614 $IP link del red 615 ) 2>/dev/null 616 cleanup 617} 618 619fib_suppress_test() 620{ 621 $IP link add dummy1 type dummy 622 $IP link set dummy1 up 623 $IP -6 route add default dev dummy1 624 $IP -6 rule add table main suppress_prefixlength 0 625 ping -f -c 1000 -W 1 1234::1 || true 626 $IP -6 rule del table main suppress_prefixlength 0 627 $IP link del dummy1 628 629 # If we got here without crashing, we're good. 630 return 0 631} 632 633################################################################################ 634# Tests on route add and replace 635 636run_cmd() 637{ 638 local cmd="$1" 639 local out 640 local stderr="2>/dev/null" 641 642 if [ "$VERBOSE" = "1" ]; then 643 printf " COMMAND: $cmd\n" 644 stderr= 645 fi 646 647 out=$(eval $cmd $stderr) 648 rc=$? 649 if [ "$VERBOSE" = "1" -a -n "$out" ]; then 650 echo " $out" 651 fi 652 653 [ "$VERBOSE" = "1" ] && echo 654 655 return $rc 656} 657 658check_expected() 659{ 660 local out="$1" 661 local expected="$2" 662 local rc=0 663 664 [ "${out}" = "${expected}" ] && return 0 665 666 if [ -z "${out}" ]; then 667 if [ "$VERBOSE" = "1" ]; then 668 printf "\nNo route entry found\n" 669 printf "Expected:\n" 670 printf " ${expected}\n" 671 fi 672 return 1 673 fi 674 675 # tricky way to convert output to 1-line without ip's 676 # messy '\'; this drops all extra white space 677 out=$(echo ${out}) 678 if [ "${out}" != "${expected}" ]; then 679 rc=1 680 if [ "${VERBOSE}" = "1" ]; then 681 printf " Unexpected route entry. Have:\n" 682 printf " ${out}\n" 683 printf " Expected:\n" 684 printf " ${expected}\n\n" 685 fi 686 fi 687 688 return $rc 689} 690 691# add route for a prefix, flushing any existing routes first 692# expected to be the first step of a test 693add_route6() 694{ 695 local pfx="$1" 696 local nh="$2" 697 local out 698 699 if [ "$VERBOSE" = "1" ]; then 700 echo 701 echo " ##################################################" 702 echo 703 fi 704 705 run_cmd "$IP -6 ro flush ${pfx}" 706 [ $? -ne 0 ] && exit 1 707 708 out=$($IP -6 ro ls match ${pfx}) 709 if [ -n "$out" ]; then 710 echo "Failed to flush routes for prefix used for tests." 711 exit 1 712 fi 713 714 run_cmd "$IP -6 ro add ${pfx} ${nh}" 715 if [ $? -ne 0 ]; then 716 echo "Failed to add initial route for test." 717 exit 1 718 fi 719} 720 721# add initial route - used in replace route tests 722add_initial_route6() 723{ 724 add_route6 "2001:db8:104::/64" "$1" 725} 726 727check_route6() 728{ 729 local pfx 730 local expected="$1" 731 local out 732 local rc=0 733 734 set -- $expected 735 pfx=$1 736 737 out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//') 738 check_expected "${out}" "${expected}" 739} 740 741route_cleanup() 742{ 743 $IP li del red 2>/dev/null 744 $IP li del dummy1 2>/dev/null 745 $IP li del veth1 2>/dev/null 746 $IP li del veth3 2>/dev/null 747 748 cleanup &> /dev/null 749} 750 751route_setup() 752{ 753 route_cleanup 754 setup 755 756 [ "${VERBOSE}" = "1" ] && set -x 757 set -e 758 759 ip netns add ns2 760 ip netns set ns2 auto 761 ip -netns ns2 link set dev lo up 762 ip netns exec ns2 sysctl -qw net.ipv4.ip_forward=1 763 ip netns exec ns2 sysctl -qw net.ipv6.conf.all.forwarding=1 764 765 $IP li add veth1 type veth peer name veth2 766 $IP li add veth3 type veth peer name veth4 767 768 $IP li set veth1 up 769 $IP li set veth3 up 770 $IP li set veth2 netns ns2 up 771 $IP li set veth4 netns ns2 up 772 ip -netns ns2 li add dummy1 type dummy 773 ip -netns ns2 li set dummy1 up 774 775 $IP -6 addr add 2001:db8:101::1/64 dev veth1 nodad 776 $IP -6 addr add 2001:db8:103::1/64 dev veth3 nodad 777 $IP addr add 172.16.101.1/24 dev veth1 778 $IP addr add 172.16.103.1/24 dev veth3 779 780 ip -netns ns2 -6 addr add 2001:db8:101::2/64 dev veth2 nodad 781 ip -netns ns2 -6 addr add 2001:db8:103::2/64 dev veth4 nodad 782 ip -netns ns2 -6 addr add 2001:db8:104::1/64 dev dummy1 nodad 783 784 ip -netns ns2 addr add 172.16.101.2/24 dev veth2 785 ip -netns ns2 addr add 172.16.103.2/24 dev veth4 786 ip -netns ns2 addr add 172.16.104.1/24 dev dummy1 787 788 set +e 789} 790 791# assumption is that basic add of a single path route works 792# otherwise just adding an address on an interface is broken 793ipv6_rt_add() 794{ 795 local rc 796 797 echo 798 echo "IPv6 route add / append tests" 799 800 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 801 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 802 run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2" 803 log_test $? 2 "Attempt to add duplicate route - gw" 804 805 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 806 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 807 run_cmd "$IP -6 ro add 2001:db8:104::/64 dev veth3" 808 log_test $? 2 "Attempt to add duplicate route - dev only" 809 810 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 811 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 812 run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64" 813 log_test $? 2 "Attempt to add duplicate route - reject route" 814 815 # route append with same prefix adds a new route 816 # - iproute2 sets NLM_F_CREATE | NLM_F_APPEND 817 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 818 run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2" 819 check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 820 log_test $? 0 "Append nexthop to existing route - gw" 821 822 # insert mpath directly 823 add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 824 check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 825 log_test $? 0 "Add multipath route" 826 827 add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 828 run_cmd "$IP -6 ro add 2001:db8:104::/64 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 829 log_test $? 2 "Attempt to add duplicate multipath route" 830 831 # insert of a second route without append but different metric 832 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 833 run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2 metric 512" 834 rc=$? 835 if [ $rc -eq 0 ]; then 836 run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::3 metric 256" 837 rc=$? 838 fi 839 log_test $rc 0 "Route add with different metrics" 840 841 run_cmd "$IP -6 ro del 2001:db8:104::/64 metric 512" 842 rc=$? 843 if [ $rc -eq 0 ]; then 844 check_route6 "2001:db8:104::/64 via 2001:db8:103::3 dev veth3 metric 256 2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024" 845 rc=$? 846 fi 847 log_test $rc 0 "Route delete with metric" 848} 849 850ipv6_rt_replace_single() 851{ 852 # single path with single path 853 # 854 add_initial_route6 "via 2001:db8:101::2" 855 run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:103::2" 856 check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024" 857 log_test $? 0 "Single path with single path" 858 859 # single path with multipath 860 # 861 add_initial_route6 "nexthop via 2001:db8:101::2" 862 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::2" 863 check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 864 log_test $? 0 "Single path with multipath" 865 866 # single path with single path using MULTIPATH attribute 867 # 868 add_initial_route6 "via 2001:db8:101::2" 869 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:103::2" 870 check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024" 871 log_test $? 0 "Single path with single path via multipath attribute" 872 873 # route replace fails - invalid nexthop 874 add_initial_route6 "via 2001:db8:101::2" 875 run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:104::2" 876 if [ $? -eq 0 ]; then 877 # previous command is expected to fail so if it returns 0 878 # that means the test failed. 879 log_test 0 1 "Invalid nexthop" 880 else 881 check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024" 882 log_test $? 0 "Invalid nexthop" 883 fi 884 885 # replace non-existent route 886 # - note use of change versus replace since ip adds NLM_F_CREATE 887 # for replace 888 add_initial_route6 "via 2001:db8:101::2" 889 run_cmd "$IP -6 ro change 2001:db8:105::/64 via 2001:db8:101::2" 890 log_test $? 2 "Single path - replace of non-existent route" 891} 892 893ipv6_rt_replace_mpath() 894{ 895 # multipath with multipath 896 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 897 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3" 898 check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::3 dev veth1 weight 1 nexthop via 2001:db8:103::3 dev veth3 weight 1" 899 log_test $? 0 "Multipath with multipath" 900 901 # multipath with single 902 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 903 run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:101::3" 904 check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024" 905 log_test $? 0 "Multipath with single path" 906 907 # multipath with single 908 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 909 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3" 910 check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024" 911 log_test $? 0 "Multipath with single path via multipath attribute" 912 913 # multipath with dev-only 914 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 915 run_cmd "$IP -6 ro replace 2001:db8:104::/64 dev veth1" 916 check_route6 "2001:db8:104::/64 dev veth1 metric 1024" 917 log_test $? 0 "Multipath with dev-only" 918 919 # route replace fails - invalid nexthop 1 920 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 921 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:111::3 nexthop via 2001:db8:103::3" 922 check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 923 log_test $? 0 "Multipath - invalid first nexthop" 924 925 # route replace fails - invalid nexthop 2 926 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 927 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:113::3" 928 check_route6 "2001:db8:104::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 929 log_test $? 0 "Multipath - invalid second nexthop" 930 931 # multipath non-existent route 932 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 933 run_cmd "$IP -6 ro change 2001:db8:105::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3" 934 log_test $? 2 "Multipath - replace of non-existent route" 935} 936 937ipv6_rt_replace() 938{ 939 echo 940 echo "IPv6 route replace tests" 941 942 ipv6_rt_replace_single 943 ipv6_rt_replace_mpath 944} 945 946ipv6_route_test() 947{ 948 route_setup 949 950 ipv6_rt_add 951 ipv6_rt_replace 952 953 route_cleanup 954} 955 956ip_addr_metric_check() 957{ 958 ip addr help 2>&1 | grep -q metric 959 if [ $? -ne 0 ]; then 960 echo "iproute2 command does not support metric for addresses. Skipping test" 961 return 1 962 fi 963 964 return 0 965} 966 967ipv6_addr_metric_test() 968{ 969 local rc 970 971 echo 972 echo "IPv6 prefix route tests" 973 974 ip_addr_metric_check || return 1 975 976 setup 977 978 set -e 979 $IP li add dummy1 type dummy 980 $IP li add dummy2 type dummy 981 $IP li set dummy1 up 982 $IP li set dummy2 up 983 984 # default entry is metric 256 985 run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64" 986 run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64" 987 set +e 988 989 check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 256 2001:db8:104::/64 dev dummy2 proto kernel metric 256" 990 log_test $? 0 "Default metric" 991 992 set -e 993 run_cmd "$IP -6 addr flush dev dummy1" 994 run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64 metric 257" 995 set +e 996 997 check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 256 2001:db8:104::/64 dev dummy1 proto kernel metric 257" 998 log_test $? 0 "User specified metric on first device" 999 1000 set -e 1001 run_cmd "$IP -6 addr flush dev dummy2" 1002 run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64 metric 258" 1003 set +e 1004 1005 check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 257 2001:db8:104::/64 dev dummy2 proto kernel metric 258" 1006 log_test $? 0 "User specified metric on second device" 1007 1008 run_cmd "$IP -6 addr del dev dummy1 2001:db8:104::1/64 metric 257" 1009 rc=$? 1010 if [ $rc -eq 0 ]; then 1011 check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 258" 1012 rc=$? 1013 fi 1014 log_test $rc 0 "Delete of address on first device" 1015 1016 run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::2/64 metric 259" 1017 rc=$? 1018 if [ $rc -eq 0 ]; then 1019 check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259" 1020 rc=$? 1021 fi 1022 log_test $rc 0 "Modify metric of address" 1023 1024 # verify prefix route removed on down 1025 run_cmd "ip netns exec ns1 sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1" 1026 run_cmd "$IP li set dev dummy2 down" 1027 rc=$? 1028 if [ $rc -eq 0 ]; then 1029 out=$($IP -6 ro ls match 2001:db8:104::/64) 1030 check_expected "${out}" "" 1031 rc=$? 1032 fi 1033 log_test $rc 0 "Prefix route removed on link down" 1034 1035 # verify prefix route re-inserted with assigned metric 1036 run_cmd "$IP li set dev dummy2 up" 1037 rc=$? 1038 if [ $rc -eq 0 ]; then 1039 check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259" 1040 rc=$? 1041 fi 1042 log_test $rc 0 "Prefix route with metric on link up" 1043 1044 # verify peer metric added correctly 1045 set -e 1046 run_cmd "$IP -6 addr flush dev dummy2" 1047 run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::1 peer 2001:db8:104::2 metric 260" 1048 set +e 1049 1050 check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 260" 1051 log_test $? 0 "Set metric with peer route on local side" 1052 log_test $? 0 "User specified metric on local address" 1053 check_route6 "2001:db8:104::2 dev dummy2 proto kernel metric 260" 1054 log_test $? 0 "Set metric with peer route on peer side" 1055 1056 set -e 1057 run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::1 peer 2001:db8:104::3 metric 261" 1058 set +e 1059 1060 check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 261" 1061 log_test $? 0 "Modify metric and peer address on local side" 1062 check_route6 "2001:db8:104::3 dev dummy2 proto kernel metric 261" 1063 log_test $? 0 "Modify metric and peer address on peer side" 1064 1065 $IP li del dummy1 1066 $IP li del dummy2 1067 cleanup 1068} 1069 1070ipv6_route_metrics_test() 1071{ 1072 local rc 1073 1074 echo 1075 echo "IPv6 routes with metrics" 1076 1077 route_setup 1078 1079 # 1080 # single path with metrics 1081 # 1082 run_cmd "$IP -6 ro add 2001:db8:111::/64 via 2001:db8:101::2 mtu 1400" 1083 rc=$? 1084 if [ $rc -eq 0 ]; then 1085 check_route6 "2001:db8:111::/64 via 2001:db8:101::2 dev veth1 metric 1024 mtu 1400" 1086 rc=$? 1087 fi 1088 log_test $rc 0 "Single path route with mtu metric" 1089 1090 1091 # 1092 # multipath via separate routes with metrics 1093 # 1094 run_cmd "$IP -6 ro add 2001:db8:112::/64 via 2001:db8:101::2 mtu 1400" 1095 run_cmd "$IP -6 ro append 2001:db8:112::/64 via 2001:db8:103::2" 1096 rc=$? 1097 if [ $rc -eq 0 ]; then 1098 check_route6 "2001:db8:112::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 1099 rc=$? 1100 fi 1101 log_test $rc 0 "Multipath route via 2 single routes with mtu metric on first" 1102 1103 # second route is coalesced to first to make a multipath route. 1104 # MTU of the second path is hidden from display! 1105 run_cmd "$IP -6 ro add 2001:db8:113::/64 via 2001:db8:101::2" 1106 run_cmd "$IP -6 ro append 2001:db8:113::/64 via 2001:db8:103::2 mtu 1400" 1107 rc=$? 1108 if [ $rc -eq 0 ]; then 1109 check_route6 "2001:db8:113::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 1110 rc=$? 1111 fi 1112 log_test $rc 0 "Multipath route via 2 single routes with mtu metric on 2nd" 1113 1114 run_cmd "$IP -6 ro del 2001:db8:113::/64 via 2001:db8:101::2" 1115 if [ $? -eq 0 ]; then 1116 check_route6 "2001:db8:113::/64 via 2001:db8:103::2 dev veth3 metric 1024 mtu 1400" 1117 log_test $? 0 " MTU of second leg" 1118 fi 1119 1120 # 1121 # multipath with metrics 1122 # 1123 run_cmd "$IP -6 ro add 2001:db8:115::/64 mtu 1400 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1124 rc=$? 1125 if [ $rc -eq 0 ]; then 1126 check_route6 "2001:db8:115::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 1127 rc=$? 1128 fi 1129 log_test $rc 0 "Multipath route with mtu metric" 1130 1131 $IP -6 ro add 2001:db8:104::/64 via 2001:db8:101::2 mtu 1300 1132 run_cmd "ip netns exec ns1 ${ping6} -w1 -c1 -s 1500 2001:db8:104::1" 1133 log_test $? 0 "Using route with mtu metric" 1134 1135 run_cmd "$IP -6 ro add 2001:db8:114::/64 via 2001:db8:101::2 congctl lock foo" 1136 log_test $? 2 "Invalid metric (fails metric_convert)" 1137 1138 route_cleanup 1139} 1140 1141# add route for a prefix, flushing any existing routes first 1142# expected to be the first step of a test 1143add_route() 1144{ 1145 local pfx="$1" 1146 local nh="$2" 1147 local out 1148 1149 if [ "$VERBOSE" = "1" ]; then 1150 echo 1151 echo " ##################################################" 1152 echo 1153 fi 1154 1155 run_cmd "$IP ro flush ${pfx}" 1156 [ $? -ne 0 ] && exit 1 1157 1158 out=$($IP ro ls match ${pfx}) 1159 if [ -n "$out" ]; then 1160 echo "Failed to flush routes for prefix used for tests." 1161 exit 1 1162 fi 1163 1164 run_cmd "$IP ro add ${pfx} ${nh}" 1165 if [ $? -ne 0 ]; then 1166 echo "Failed to add initial route for test." 1167 exit 1 1168 fi 1169} 1170 1171# add initial route - used in replace route tests 1172add_initial_route() 1173{ 1174 add_route "172.16.104.0/24" "$1" 1175} 1176 1177check_route() 1178{ 1179 local pfx 1180 local expected="$1" 1181 local out 1182 1183 set -- $expected 1184 pfx=$1 1185 [ "${pfx}" = "unreachable" ] && pfx=$2 1186 1187 out=$($IP ro ls match ${pfx}) 1188 check_expected "${out}" "${expected}" 1189} 1190 1191# assumption is that basic add of a single path route works 1192# otherwise just adding an address on an interface is broken 1193ipv4_rt_add() 1194{ 1195 local rc 1196 1197 echo 1198 echo "IPv4 route add / append tests" 1199 1200 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1201 add_route "172.16.104.0/24" "via 172.16.101.2" 1202 run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2" 1203 log_test $? 2 "Attempt to add duplicate route - gw" 1204 1205 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1206 add_route "172.16.104.0/24" "via 172.16.101.2" 1207 run_cmd "$IP ro add 172.16.104.0/24 dev veth3" 1208 log_test $? 2 "Attempt to add duplicate route - dev only" 1209 1210 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1211 add_route "172.16.104.0/24" "via 172.16.101.2" 1212 run_cmd "$IP ro add unreachable 172.16.104.0/24" 1213 log_test $? 2 "Attempt to add duplicate route - reject route" 1214 1215 # iproute2 prepend only sets NLM_F_CREATE 1216 # - adds a new route; does NOT convert existing route to ECMP 1217 add_route "172.16.104.0/24" "via 172.16.101.2" 1218 run_cmd "$IP ro prepend 172.16.104.0/24 via 172.16.103.2" 1219 check_route "172.16.104.0/24 via 172.16.103.2 dev veth3 172.16.104.0/24 via 172.16.101.2 dev veth1" 1220 log_test $? 0 "Add new nexthop for existing prefix" 1221 1222 # route append with same prefix adds a new route 1223 # - iproute2 sets NLM_F_CREATE | NLM_F_APPEND 1224 add_route "172.16.104.0/24" "via 172.16.101.2" 1225 run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2" 1226 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.2 dev veth3" 1227 log_test $? 0 "Append nexthop to existing route - gw" 1228 1229 add_route "172.16.104.0/24" "via 172.16.101.2" 1230 run_cmd "$IP ro append 172.16.104.0/24 dev veth3" 1231 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 dev veth3 scope link" 1232 log_test $? 0 "Append nexthop to existing route - dev only" 1233 1234 add_route "172.16.104.0/24" "via 172.16.101.2" 1235 run_cmd "$IP ro append unreachable 172.16.104.0/24" 1236 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 unreachable 172.16.104.0/24" 1237 log_test $? 0 "Append nexthop to existing route - reject route" 1238 1239 run_cmd "$IP ro flush 172.16.104.0/24" 1240 run_cmd "$IP ro add unreachable 172.16.104.0/24" 1241 run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2" 1242 check_route "unreachable 172.16.104.0/24 172.16.104.0/24 via 172.16.103.2 dev veth3" 1243 log_test $? 0 "Append nexthop to existing reject route - gw" 1244 1245 run_cmd "$IP ro flush 172.16.104.0/24" 1246 run_cmd "$IP ro add unreachable 172.16.104.0/24" 1247 run_cmd "$IP ro append 172.16.104.0/24 dev veth3" 1248 check_route "unreachable 172.16.104.0/24 172.16.104.0/24 dev veth3 scope link" 1249 log_test $? 0 "Append nexthop to existing reject route - dev only" 1250 1251 # insert mpath directly 1252 add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1253 check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1" 1254 log_test $? 0 "add multipath route" 1255 1256 add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1257 run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1258 log_test $? 2 "Attempt to add duplicate multipath route" 1259 1260 # insert of a second route without append but different metric 1261 add_route "172.16.104.0/24" "via 172.16.101.2" 1262 run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2 metric 512" 1263 rc=$? 1264 if [ $rc -eq 0 ]; then 1265 run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.3 metric 256" 1266 rc=$? 1267 fi 1268 log_test $rc 0 "Route add with different metrics" 1269 1270 run_cmd "$IP ro del 172.16.104.0/24 metric 512" 1271 rc=$? 1272 if [ $rc -eq 0 ]; then 1273 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.3 dev veth3 metric 256" 1274 rc=$? 1275 fi 1276 log_test $rc 0 "Route delete with metric" 1277} 1278 1279ipv4_rt_replace_single() 1280{ 1281 # single path with single path 1282 # 1283 add_initial_route "via 172.16.101.2" 1284 run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.103.2" 1285 check_route "172.16.104.0/24 via 172.16.103.2 dev veth3" 1286 log_test $? 0 "Single path with single path" 1287 1288 # single path with multipath 1289 # 1290 add_initial_route "nexthop via 172.16.101.2" 1291 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.2" 1292 check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1" 1293 log_test $? 0 "Single path with multipath" 1294 1295 # single path with reject 1296 # 1297 add_initial_route "nexthop via 172.16.101.2" 1298 run_cmd "$IP ro replace unreachable 172.16.104.0/24" 1299 check_route "unreachable 172.16.104.0/24" 1300 log_test $? 0 "Single path with reject route" 1301 1302 # single path with single path using MULTIPATH attribute 1303 # 1304 add_initial_route "via 172.16.101.2" 1305 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.103.2" 1306 check_route "172.16.104.0/24 via 172.16.103.2 dev veth3" 1307 log_test $? 0 "Single path with single path via multipath attribute" 1308 1309 # route replace fails - invalid nexthop 1310 add_initial_route "via 172.16.101.2" 1311 run_cmd "$IP ro replace 172.16.104.0/24 via 2001:db8:104::2" 1312 if [ $? -eq 0 ]; then 1313 # previous command is expected to fail so if it returns 0 1314 # that means the test failed. 1315 log_test 0 1 "Invalid nexthop" 1316 else 1317 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1" 1318 log_test $? 0 "Invalid nexthop" 1319 fi 1320 1321 # replace non-existent route 1322 # - note use of change versus replace since ip adds NLM_F_CREATE 1323 # for replace 1324 add_initial_route "via 172.16.101.2" 1325 run_cmd "$IP ro change 172.16.105.0/24 via 172.16.101.2" 1326 log_test $? 2 "Single path - replace of non-existent route" 1327} 1328 1329ipv4_rt_replace_mpath() 1330{ 1331 # multipath with multipath 1332 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1333 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3" 1334 check_route "172.16.104.0/24 nexthop via 172.16.101.3 dev veth1 weight 1 nexthop via 172.16.103.3 dev veth3 weight 1" 1335 log_test $? 0 "Multipath with multipath" 1336 1337 # multipath with single 1338 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1339 run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.101.3" 1340 check_route "172.16.104.0/24 via 172.16.101.3 dev veth1" 1341 log_test $? 0 "Multipath with single path" 1342 1343 # multipath with single 1344 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1345 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3" 1346 check_route "172.16.104.0/24 via 172.16.101.3 dev veth1" 1347 log_test $? 0 "Multipath with single path via multipath attribute" 1348 1349 # multipath with reject 1350 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1351 run_cmd "$IP ro replace unreachable 172.16.104.0/24" 1352 check_route "unreachable 172.16.104.0/24" 1353 log_test $? 0 "Multipath with reject route" 1354 1355 # route replace fails - invalid nexthop 1 1356 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1357 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.111.3 nexthop via 172.16.103.3" 1358 check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1" 1359 log_test $? 0 "Multipath - invalid first nexthop" 1360 1361 # route replace fails - invalid nexthop 2 1362 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1363 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.113.3" 1364 check_route "172.16.104.0/24 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1" 1365 log_test $? 0 "Multipath - invalid second nexthop" 1366 1367 # multipath non-existent route 1368 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1369 run_cmd "$IP ro change 172.16.105.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3" 1370 log_test $? 2 "Multipath - replace of non-existent route" 1371} 1372 1373ipv4_rt_replace() 1374{ 1375 echo 1376 echo "IPv4 route replace tests" 1377 1378 ipv4_rt_replace_single 1379 ipv4_rt_replace_mpath 1380} 1381 1382ipv4_route_test() 1383{ 1384 route_setup 1385 1386 ipv4_rt_add 1387 ipv4_rt_replace 1388 1389 route_cleanup 1390} 1391 1392ipv4_addr_metric_test() 1393{ 1394 local rc 1395 1396 echo 1397 echo "IPv4 prefix route tests" 1398 1399 ip_addr_metric_check || return 1 1400 1401 setup 1402 1403 set -e 1404 $IP li add dummy1 type dummy 1405 $IP li add dummy2 type dummy 1406 $IP li set dummy1 up 1407 $IP li set dummy2 up 1408 1409 # default entry is metric 256 1410 run_cmd "$IP addr add dev dummy1 172.16.104.1/24" 1411 run_cmd "$IP addr add dev dummy2 172.16.104.2/24" 1412 set +e 1413 1414 check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2" 1415 log_test $? 0 "Default metric" 1416 1417 set -e 1418 run_cmd "$IP addr flush dev dummy1" 1419 run_cmd "$IP addr add dev dummy1 172.16.104.1/24 metric 257" 1420 set +e 1421 1422 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257" 1423 log_test $? 0 "User specified metric on first device" 1424 1425 set -e 1426 run_cmd "$IP addr flush dev dummy2" 1427 run_cmd "$IP addr add dev dummy2 172.16.104.2/24 metric 258" 1428 set +e 1429 1430 check_route "172.16.104.0/24 dev dummy1 proto kernel scope link src 172.16.104.1 metric 257 172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258" 1431 log_test $? 0 "User specified metric on second device" 1432 1433 run_cmd "$IP addr del dev dummy1 172.16.104.1/24 metric 257" 1434 rc=$? 1435 if [ $rc -eq 0 ]; then 1436 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258" 1437 rc=$? 1438 fi 1439 log_test $rc 0 "Delete of address on first device" 1440 1441 run_cmd "$IP addr change dev dummy2 172.16.104.2/24 metric 259" 1442 rc=$? 1443 if [ $rc -eq 0 ]; then 1444 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259" 1445 rc=$? 1446 fi 1447 log_test $rc 0 "Modify metric of address" 1448 1449 # verify prefix route removed on down 1450 run_cmd "$IP li set dev dummy2 down" 1451 rc=$? 1452 if [ $rc -eq 0 ]; then 1453 out=$($IP ro ls match 172.16.104.0/24) 1454 check_expected "${out}" "" 1455 rc=$? 1456 fi 1457 log_test $rc 0 "Prefix route removed on link down" 1458 1459 # verify prefix route re-inserted with assigned metric 1460 run_cmd "$IP li set dev dummy2 up" 1461 rc=$? 1462 if [ $rc -eq 0 ]; then 1463 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259" 1464 rc=$? 1465 fi 1466 log_test $rc 0 "Prefix route with metric on link up" 1467 1468 # explicitly check for metric changes on edge scenarios 1469 run_cmd "$IP addr flush dev dummy2" 1470 run_cmd "$IP addr add dev dummy2 172.16.104.0/24 metric 259" 1471 run_cmd "$IP addr change dev dummy2 172.16.104.0/24 metric 260" 1472 rc=$? 1473 if [ $rc -eq 0 ]; then 1474 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.0 metric 260" 1475 rc=$? 1476 fi 1477 log_test $rc 0 "Modify metric of .0/24 address" 1478 1479 run_cmd "$IP addr flush dev dummy2" 1480 run_cmd "$IP addr add dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 260" 1481 rc=$? 1482 if [ $rc -eq 0 ]; then 1483 check_route "172.16.104.2 dev dummy2 proto kernel scope link src 172.16.104.1 metric 260" 1484 rc=$? 1485 fi 1486 log_test $rc 0 "Set metric of address with peer route" 1487 1488 run_cmd "$IP addr change dev dummy2 172.16.104.1/32 peer 172.16.104.3 metric 261" 1489 rc=$? 1490 if [ $rc -eq 0 ]; then 1491 check_route "172.16.104.3 dev dummy2 proto kernel scope link src 172.16.104.1 metric 261" 1492 rc=$? 1493 fi 1494 log_test $rc 0 "Modify metric and peer address for peer route" 1495 1496 $IP li del dummy1 1497 $IP li del dummy2 1498 cleanup 1499} 1500 1501ipv4_route_metrics_test() 1502{ 1503 local rc 1504 1505 echo 1506 echo "IPv4 route add / append tests" 1507 1508 route_setup 1509 1510 run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 mtu 1400" 1511 rc=$? 1512 if [ $rc -eq 0 ]; then 1513 check_route "172.16.111.0/24 via 172.16.101.2 dev veth1 mtu 1400" 1514 rc=$? 1515 fi 1516 log_test $rc 0 "Single path route with mtu metric" 1517 1518 1519 run_cmd "$IP ro add 172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1520 rc=$? 1521 if [ $rc -eq 0 ]; then 1522 check_route "172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1" 1523 rc=$? 1524 fi 1525 log_test $rc 0 "Multipath route with mtu metric" 1526 1527 $IP ro add 172.16.104.0/24 via 172.16.101.2 mtu 1300 1528 run_cmd "ip netns exec ns1 ping -w1 -c1 -s 1500 172.16.104.1" 1529 log_test $? 0 "Using route with mtu metric" 1530 1531 run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 congctl lock foo" 1532 log_test $? 2 "Invalid metric (fails metric_convert)" 1533 1534 route_cleanup 1535} 1536 1537ipv4_del_addr_test() 1538{ 1539 echo 1540 echo "IPv4 delete address route tests" 1541 1542 setup 1543 1544 set -e 1545 $IP li add dummy1 type dummy 1546 $IP li set dummy1 up 1547 $IP li add dummy2 type dummy 1548 $IP li set dummy2 up 1549 $IP li add red type vrf table 1111 1550 $IP li set red up 1551 $IP ro add vrf red unreachable default 1552 $IP li set dummy2 vrf red 1553 1554 $IP addr add dev dummy1 172.16.104.1/24 1555 $IP addr add dev dummy1 172.16.104.11/24 1556 $IP addr add dev dummy2 172.16.104.1/24 1557 $IP addr add dev dummy2 172.16.104.11/24 1558 $IP route add 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11 1559 $IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11 1560 set +e 1561 1562 # removing address from device in vrf should only remove route from vrf table 1563 $IP addr del dev dummy2 172.16.104.11/24 1564 $IP ro ls vrf red | grep -q 172.16.105.0/24 1565 log_test $? 1 "Route removed from VRF when source address deleted" 1566 1567 $IP ro ls | grep -q 172.16.105.0/24 1568 log_test $? 0 "Route in default VRF not removed" 1569 1570 $IP addr add dev dummy2 172.16.104.11/24 1571 $IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11 1572 1573 $IP addr del dev dummy1 172.16.104.11/24 1574 $IP ro ls | grep -q 172.16.105.0/24 1575 log_test $? 1 "Route removed in default VRF when source address deleted" 1576 1577 $IP ro ls vrf red | grep -q 172.16.105.0/24 1578 log_test $? 0 "Route in VRF is not removed by address delete" 1579 1580 $IP li del dummy1 1581 $IP li del dummy2 1582 cleanup 1583} 1584 1585 1586ipv4_route_v6_gw_test() 1587{ 1588 local rc 1589 1590 echo 1591 echo "IPv4 route with IPv6 gateway tests" 1592 1593 route_setup 1594 sleep 2 1595 1596 # 1597 # single path route 1598 # 1599 run_cmd "$IP ro add 172.16.104.0/24 via inet6 2001:db8:101::2" 1600 rc=$? 1601 log_test $rc 0 "Single path route with IPv6 gateway" 1602 if [ $rc -eq 0 ]; then 1603 check_route "172.16.104.0/24 via inet6 2001:db8:101::2 dev veth1" 1604 fi 1605 1606 run_cmd "ip netns exec ns1 ping -w1 -c1 172.16.104.1" 1607 log_test $rc 0 "Single path route with IPv6 gateway - ping" 1608 1609 run_cmd "$IP ro del 172.16.104.0/24 via inet6 2001:db8:101::2" 1610 rc=$? 1611 log_test $rc 0 "Single path route delete" 1612 if [ $rc -eq 0 ]; then 1613 check_route "172.16.112.0/24" 1614 fi 1615 1616 # 1617 # multipath - v6 then v4 1618 # 1619 run_cmd "$IP ro add 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3" 1620 rc=$? 1621 log_test $rc 0 "Multipath route add - v6 nexthop then v4" 1622 if [ $rc -eq 0 ]; then 1623 check_route "172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1" 1624 fi 1625 1626 run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1" 1627 log_test $? 2 " Multipath route delete - nexthops in wrong order" 1628 1629 run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3" 1630 log_test $? 0 " Multipath route delete exact match" 1631 1632 # 1633 # multipath - v4 then v6 1634 # 1635 run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1" 1636 rc=$? 1637 log_test $rc 0 "Multipath route add - v4 nexthop then v6" 1638 if [ $rc -eq 0 ]; then 1639 check_route "172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 weight 1 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1" 1640 fi 1641 1642 run_cmd "$IP ro del 172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 nexthop via 172.16.103.2 dev veth3" 1643 log_test $? 2 " Multipath route delete - nexthops in wrong order" 1644 1645 run_cmd "$IP ro del 172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 nexthop via inet6 2001:db8:101::2 dev veth1" 1646 log_test $? 0 " Multipath route delete exact match" 1647 1648 route_cleanup 1649} 1650 1651################################################################################ 1652# usage 1653 1654usage() 1655{ 1656 cat <<EOF 1657usage: ${0##*/} OPTS 1658 1659 -t <test> Test(s) to run (default: all) 1660 (options: $TESTS) 1661 -p Pause on fail 1662 -P Pause after each test before cleanup 1663 -v verbose mode (show commands and output) 1664EOF 1665} 1666 1667################################################################################ 1668# main 1669 1670while getopts :t:pPhv o 1671do 1672 case $o in 1673 t) TESTS=$OPTARG;; 1674 p) PAUSE_ON_FAIL=yes;; 1675 P) PAUSE=yes;; 1676 v) VERBOSE=$(($VERBOSE + 1));; 1677 h) usage; exit 0;; 1678 *) usage; exit 1;; 1679 esac 1680done 1681 1682PEER_CMD="ip netns exec ${PEER_NS}" 1683 1684# make sure we don't pause twice 1685[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no 1686 1687if [ "$(id -u)" -ne 0 ];then 1688 echo "SKIP: Need root privileges" 1689 exit $ksft_skip; 1690fi 1691 1692if [ ! -x "$(command -v ip)" ]; then 1693 echo "SKIP: Could not run test without ip tool" 1694 exit $ksft_skip 1695fi 1696 1697ip route help 2>&1 | grep -q fibmatch 1698if [ $? -ne 0 ]; then 1699 echo "SKIP: iproute2 too old, missing fibmatch" 1700 exit $ksft_skip 1701fi 1702 1703# start clean 1704cleanup &> /dev/null 1705 1706for t in $TESTS 1707do 1708 case $t in 1709 fib_unreg_test|unregister) fib_unreg_test;; 1710 fib_down_test|down) fib_down_test;; 1711 fib_carrier_test|carrier) fib_carrier_test;; 1712 fib_rp_filter_test|rp_filter) fib_rp_filter_test;; 1713 fib_nexthop_test|nexthop) fib_nexthop_test;; 1714 fib_suppress_test|suppress) fib_suppress_test;; 1715 ipv6_route_test|ipv6_rt) ipv6_route_test;; 1716 ipv4_route_test|ipv4_rt) ipv4_route_test;; 1717 ipv6_addr_metric) ipv6_addr_metric_test;; 1718 ipv4_addr_metric) ipv4_addr_metric_test;; 1719 ipv4_del_addr) ipv4_del_addr_test;; 1720 ipv6_route_metrics) ipv6_route_metrics_test;; 1721 ipv4_route_metrics) ipv4_route_metrics_test;; 1722 ipv4_route_v6_gw) ipv4_route_v6_gw_test;; 1723 1724 help) echo "Test names: $TESTS"; exit 0;; 1725 esac 1726done 1727 1728if [ "$TESTS" != "none" ]; then 1729 printf "\nTests passed: %3d\n" ${nsuccess} 1730 printf "Tests failed: %3d\n" ${nfail} 1731fi 1732 1733exit $ret 1734