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. 6source lib.sh 7ret=0 8 9# all tests in this script. Can be overridden with -t option 10TESTS="unregister down carrier nexthop suppress ipv6_notify ipv4_notify \ 11 ipv6_rt ipv4_rt ipv6_addr_metric ipv4_addr_metric ipv6_route_metrics \ 12 ipv4_route_metrics ipv4_route_v6_gw rp_filter ipv4_del_addr \ 13 ipv6_del_addr ipv4_mangle ipv6_mangle ipv4_bcast_neigh fib6_gc_test \ 14 ipv4_mpath_list ipv6_mpath_list" 15 16VERBOSE=0 17PAUSE_ON_FAIL=no 18PAUSE=no 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 [ "$a" = "q" ] && exit 1 48 fi 49} 50 51setup() 52{ 53 set -e 54 setup_ns ns1 55 IP="$(which ip) -netns $ns1" 56 NS_EXEC="$(which ip) netns exec $ns1" 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 cleanup_ns $ns1 $ns2 72} 73 74get_linklocal() 75{ 76 local dev=$1 77 local addr 78 79 addr=$($IP -6 -br addr show dev ${dev} | \ 80 awk '{ 81 for (i = 3; i <= NF; ++i) { 82 if ($i ~ /^fe80/) 83 print $i 84 } 85 }' 86 ) 87 addr=${addr/\/*} 88 89 [ -z "$addr" ] && return 1 90 91 echo $addr 92 93 return 0 94} 95 96fib_unreg_unicast_test() 97{ 98 echo 99 echo "Single path route test" 100 101 setup 102 103 echo " Start point" 104 $IP route get fibmatch 198.51.100.2 &> /dev/null 105 log_test $? 0 "IPv4 fibmatch" 106 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 107 log_test $? 0 "IPv6 fibmatch" 108 109 set -e 110 $IP link del dev dummy0 111 set +e 112 113 echo " Nexthop device deleted" 114 $IP route get fibmatch 198.51.100.2 &> /dev/null 115 log_test $? 2 "IPv4 fibmatch - no route" 116 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 117 log_test $? 2 "IPv6 fibmatch - no route" 118 119 cleanup 120} 121 122fib_unreg_multipath_test() 123{ 124 125 echo 126 echo "Multipath route test" 127 128 setup 129 130 set -e 131 $IP link add dummy1 type dummy 132 $IP link set dev dummy1 up 133 $IP address add 192.0.2.1/24 dev dummy1 134 $IP -6 address add 2001:db8:2::1/64 dev dummy1 135 136 $IP route add 203.0.113.0/24 \ 137 nexthop via 198.51.100.2 dev dummy0 \ 138 nexthop via 192.0.2.2 dev dummy1 139 $IP -6 route add 2001:db8:3::/64 \ 140 nexthop via 2001:db8:1::2 dev dummy0 \ 141 nexthop via 2001:db8:2::2 dev dummy1 142 set +e 143 144 echo " Start point" 145 $IP route get fibmatch 203.0.113.1 &> /dev/null 146 log_test $? 0 "IPv4 fibmatch" 147 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 148 log_test $? 0 "IPv6 fibmatch" 149 150 set -e 151 $IP link del dev dummy0 152 set +e 153 154 echo " One nexthop device deleted" 155 $IP route get fibmatch 203.0.113.1 &> /dev/null 156 log_test $? 2 "IPv4 - multipath route removed on delete" 157 158 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 159 # In IPv6 we do not flush the entire multipath route. 160 log_test $? 0 "IPv6 - multipath down to single path" 161 162 set -e 163 $IP link del dev dummy1 164 set +e 165 166 echo " Second nexthop device deleted" 167 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 168 log_test $? 2 "IPv6 - no route" 169 170 cleanup 171} 172 173fib_unreg_test() 174{ 175 fib_unreg_unicast_test 176 fib_unreg_multipath_test 177} 178 179fib_down_unicast_test() 180{ 181 echo 182 echo "Single path, admin down" 183 184 setup 185 186 echo " Start point" 187 $IP route get fibmatch 198.51.100.2 &> /dev/null 188 log_test $? 0 "IPv4 fibmatch" 189 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 190 log_test $? 0 "IPv6 fibmatch" 191 192 set -e 193 $IP link set dev dummy0 down 194 set +e 195 196 echo " Route deleted on down" 197 $IP route get fibmatch 198.51.100.2 &> /dev/null 198 log_test $? 2 "IPv4 fibmatch" 199 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 200 log_test $? 2 "IPv6 fibmatch" 201 202 cleanup 203} 204 205fib_down_multipath_test_do() 206{ 207 local down_dev=$1 208 local up_dev=$2 209 210 $IP route get fibmatch 203.0.113.1 \ 211 oif $down_dev &> /dev/null 212 log_test $? 2 "IPv4 fibmatch on down device" 213 $IP -6 route get fibmatch 2001:db8:3::1 \ 214 oif $down_dev &> /dev/null 215 log_test $? 2 "IPv6 fibmatch on down device" 216 217 $IP route get fibmatch 203.0.113.1 \ 218 oif $up_dev &> /dev/null 219 log_test $? 0 "IPv4 fibmatch on up device" 220 $IP -6 route get fibmatch 2001:db8:3::1 \ 221 oif $up_dev &> /dev/null 222 log_test $? 0 "IPv6 fibmatch on up device" 223 224 $IP route get fibmatch 203.0.113.1 | \ 225 grep $down_dev | grep -q "dead linkdown" 226 log_test $? 0 "IPv4 flags on down device" 227 $IP -6 route get fibmatch 2001:db8:3::1 | \ 228 grep $down_dev | grep -q "dead linkdown" 229 log_test $? 0 "IPv6 flags on down device" 230 231 $IP route get fibmatch 203.0.113.1 | \ 232 grep $up_dev | grep -q "dead linkdown" 233 log_test $? 1 "IPv4 flags on up device" 234 $IP -6 route get fibmatch 2001:db8:3::1 | \ 235 grep $up_dev | grep -q "dead linkdown" 236 log_test $? 1 "IPv6 flags on up device" 237} 238 239fib_down_multipath_test() 240{ 241 echo 242 echo "Admin down multipath" 243 244 setup 245 246 set -e 247 $IP link add dummy1 type dummy 248 $IP link set dev dummy1 up 249 250 $IP address add 192.0.2.1/24 dev dummy1 251 $IP -6 address add 2001:db8:2::1/64 dev dummy1 252 253 $IP route add 203.0.113.0/24 \ 254 nexthop via 198.51.100.2 dev dummy0 \ 255 nexthop via 192.0.2.2 dev dummy1 256 $IP -6 route add 2001:db8:3::/64 \ 257 nexthop via 2001:db8:1::2 dev dummy0 \ 258 nexthop via 2001:db8:2::2 dev dummy1 259 set +e 260 261 echo " Verify start point" 262 $IP route get fibmatch 203.0.113.1 &> /dev/null 263 log_test $? 0 "IPv4 fibmatch" 264 265 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 266 log_test $? 0 "IPv6 fibmatch" 267 268 set -e 269 $IP link set dev dummy0 down 270 set +e 271 272 echo " One device down, one up" 273 fib_down_multipath_test_do "dummy0" "dummy1" 274 275 set -e 276 $IP link set dev dummy0 up 277 $IP link set dev dummy1 down 278 set +e 279 280 echo " Other device down and up" 281 fib_down_multipath_test_do "dummy1" "dummy0" 282 283 set -e 284 $IP link set dev dummy0 down 285 set +e 286 287 echo " Both devices down" 288 $IP route get fibmatch 203.0.113.1 &> /dev/null 289 log_test $? 2 "IPv4 fibmatch" 290 $IP -6 route get fibmatch 2001:db8:3::1 &> /dev/null 291 log_test $? 2 "IPv6 fibmatch" 292 293 $IP link del dev dummy1 294 cleanup 295} 296 297fib_down_test() 298{ 299 fib_down_unicast_test 300 fib_down_multipath_test 301} 302 303# Local routes should not be affected when carrier changes. 304fib_carrier_local_test() 305{ 306 echo 307 echo "Local carrier tests - single path" 308 309 setup 310 311 set -e 312 $IP link set dev dummy0 carrier on 313 set +e 314 315 echo " Start point" 316 $IP route get fibmatch 198.51.100.1 &> /dev/null 317 log_test $? 0 "IPv4 fibmatch" 318 $IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null 319 log_test $? 0 "IPv6 fibmatch" 320 321 $IP route get fibmatch 198.51.100.1 | \ 322 grep -q "linkdown" 323 log_test $? 1 "IPv4 - no linkdown flag" 324 $IP -6 route get fibmatch 2001:db8:1::1 | \ 325 grep -q "linkdown" 326 log_test $? 1 "IPv6 - no linkdown flag" 327 328 set -e 329 $IP link set dev dummy0 carrier off 330 sleep 1 331 set +e 332 333 echo " Carrier off on nexthop" 334 $IP route get fibmatch 198.51.100.1 &> /dev/null 335 log_test $? 0 "IPv4 fibmatch" 336 $IP -6 route get fibmatch 2001:db8:1::1 &> /dev/null 337 log_test $? 0 "IPv6 fibmatch" 338 339 $IP route get fibmatch 198.51.100.1 | \ 340 grep -q "linkdown" 341 log_test $? 1 "IPv4 - linkdown flag set" 342 $IP -6 route get fibmatch 2001:db8:1::1 | \ 343 grep -q "linkdown" 344 log_test $? 1 "IPv6 - linkdown flag set" 345 346 set -e 347 $IP address add 192.0.2.1/24 dev dummy0 348 $IP -6 address add 2001:db8:2::1/64 dev dummy0 349 set +e 350 351 echo " Route to local address with carrier down" 352 $IP route get fibmatch 192.0.2.1 &> /dev/null 353 log_test $? 0 "IPv4 fibmatch" 354 $IP -6 route get fibmatch 2001:db8:2::1 &> /dev/null 355 log_test $? 0 "IPv6 fibmatch" 356 357 $IP route get fibmatch 192.0.2.1 | \ 358 grep -q "linkdown" 359 log_test $? 1 "IPv4 linkdown flag set" 360 $IP -6 route get fibmatch 2001:db8:2::1 | \ 361 grep -q "linkdown" 362 log_test $? 1 "IPv6 linkdown flag set" 363 364 cleanup 365} 366 367fib_carrier_unicast_test() 368{ 369 ret=0 370 371 echo 372 echo "Single path route carrier test" 373 374 setup 375 376 set -e 377 $IP link set dev dummy0 carrier on 378 set +e 379 380 echo " Start point" 381 $IP route get fibmatch 198.51.100.2 &> /dev/null 382 log_test $? 0 "IPv4 fibmatch" 383 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 384 log_test $? 0 "IPv6 fibmatch" 385 386 $IP route get fibmatch 198.51.100.2 | \ 387 grep -q "linkdown" 388 log_test $? 1 "IPv4 no linkdown flag" 389 $IP -6 route get fibmatch 2001:db8:1::2 | \ 390 grep -q "linkdown" 391 log_test $? 1 "IPv6 no linkdown flag" 392 393 set -e 394 $IP link set dev dummy0 carrier off 395 sleep 1 396 set +e 397 398 echo " Carrier down" 399 $IP route get fibmatch 198.51.100.2 &> /dev/null 400 log_test $? 0 "IPv4 fibmatch" 401 $IP -6 route get fibmatch 2001:db8:1::2 &> /dev/null 402 log_test $? 0 "IPv6 fibmatch" 403 404 $IP route get fibmatch 198.51.100.2 | \ 405 grep -q "linkdown" 406 log_test $? 0 "IPv4 linkdown flag set" 407 $IP -6 route get fibmatch 2001:db8:1::2 | \ 408 grep -q "linkdown" 409 log_test $? 0 "IPv6 linkdown flag set" 410 411 set -e 412 $IP address add 192.0.2.1/24 dev dummy0 413 $IP -6 address add 2001:db8:2::1/64 dev dummy0 414 set +e 415 416 echo " Second address added with carrier down" 417 $IP route get fibmatch 192.0.2.2 &> /dev/null 418 log_test $? 0 "IPv4 fibmatch" 419 $IP -6 route get fibmatch 2001:db8:2::2 &> /dev/null 420 log_test $? 0 "IPv6 fibmatch" 421 422 $IP route get fibmatch 192.0.2.2 | \ 423 grep -q "linkdown" 424 log_test $? 0 "IPv4 linkdown flag set" 425 $IP -6 route get fibmatch 2001:db8:2::2 | \ 426 grep -q "linkdown" 427 log_test $? 0 "IPv6 linkdown flag set" 428 429 cleanup 430} 431 432fib_carrier_test() 433{ 434 fib_carrier_local_test 435 fib_carrier_unicast_test 436} 437 438fib_rp_filter_test() 439{ 440 echo 441 echo "IPv4 rp_filter tests" 442 443 setup 444 445 set -e 446 setup_ns ns2 447 448 $IP link add name veth1 type veth peer name veth2 449 $IP link set dev veth2 netns $ns2 450 $IP address add 192.0.2.1/24 dev veth1 451 ip -netns $ns2 address add 192.0.2.1/24 dev veth2 452 $IP link set dev veth1 up 453 ip -netns $ns2 link set dev veth2 up 454 455 $IP link set dev lo address 52:54:00:6a:c7:5e 456 $IP link set dev veth1 address 52:54:00:6a:c7:5e 457 ip -netns $ns2 link set dev lo address 52:54:00:6a:c7:5e 458 ip -netns $ns2 link set dev veth2 address 52:54:00:6a:c7:5e 459 460 # 1. (ns2) redirect lo's egress to veth2's egress 461 ip netns exec $ns2 tc qdisc add dev lo parent root handle 1: fq_codel 462 ip netns exec $ns2 tc filter add dev lo parent 1: protocol arp basic \ 463 action mirred egress redirect dev veth2 464 ip netns exec $ns2 tc filter add dev lo parent 1: protocol ip basic \ 465 action mirred egress redirect dev veth2 466 467 # 2. (ns1) redirect veth1's ingress to lo's ingress 468 $NS_EXEC tc qdisc add dev veth1 ingress 469 $NS_EXEC tc filter add dev veth1 ingress protocol arp basic \ 470 action mirred ingress redirect dev lo 471 $NS_EXEC tc filter add dev veth1 ingress protocol ip basic \ 472 action mirred ingress redirect dev lo 473 474 # 3. (ns1) redirect lo's egress to veth1's egress 475 $NS_EXEC tc qdisc add dev lo parent root handle 1: fq_codel 476 $NS_EXEC tc filter add dev lo parent 1: protocol arp basic \ 477 action mirred egress redirect dev veth1 478 $NS_EXEC tc filter add dev lo parent 1: protocol ip basic \ 479 action mirred egress redirect dev veth1 480 481 # 4. (ns2) redirect veth2's ingress to lo's ingress 482 ip netns exec $ns2 tc qdisc add dev veth2 ingress 483 ip netns exec $ns2 tc filter add dev veth2 ingress protocol arp basic \ 484 action mirred ingress redirect dev lo 485 ip netns exec $ns2 tc filter add dev veth2 ingress protocol ip basic \ 486 action mirred ingress redirect dev lo 487 488 $NS_EXEC sysctl -qw net.ipv4.conf.all.rp_filter=1 489 $NS_EXEC sysctl -qw net.ipv4.conf.all.accept_local=1 490 $NS_EXEC sysctl -qw net.ipv4.conf.all.route_localnet=1 491 ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.rp_filter=1 492 ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.accept_local=1 493 ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.route_localnet=1 494 set +e 495 496 run_cmd "ip netns exec $ns2 ping -w1 -c1 192.0.2.1" 497 log_test $? 0 "rp_filter passes local packets" 498 499 run_cmd "ip netns exec $ns2 ping -w1 -c1 127.0.0.1" 500 log_test $? 0 "rp_filter passes loopback packets" 501 502 cleanup 503} 504 505################################################################################ 506# Tests on nexthop spec 507 508# run 'ip route add' with given spec 509add_rt() 510{ 511 local desc="$1" 512 local erc=$2 513 local vrf=$3 514 local pfx=$4 515 local gw=$5 516 local dev=$6 517 local cmd out rc 518 519 [ "$vrf" = "-" ] && vrf="default" 520 [ -n "$gw" ] && gw="via $gw" 521 [ -n "$dev" ] && dev="dev $dev" 522 523 cmd="$IP route add vrf $vrf $pfx $gw $dev" 524 if [ "$VERBOSE" = "1" ]; then 525 printf "\n COMMAND: $cmd\n" 526 fi 527 528 out=$(eval $cmd 2>&1) 529 rc=$? 530 if [ "$VERBOSE" = "1" -a -n "$out" ]; then 531 echo " $out" 532 fi 533 log_test $rc $erc "$desc" 534} 535 536fib4_nexthop() 537{ 538 echo 539 echo "IPv4 nexthop tests" 540 541 echo "<<< write me >>>" 542} 543 544fib6_nexthop() 545{ 546 local lldummy=$(get_linklocal dummy0) 547 local llv1=$(get_linklocal dummy0) 548 549 if [ -z "$lldummy" ]; then 550 echo "Failed to get linklocal address for dummy0" 551 return 1 552 fi 553 if [ -z "$llv1" ]; then 554 echo "Failed to get linklocal address for veth1" 555 return 1 556 fi 557 558 echo 559 echo "IPv6 nexthop tests" 560 561 add_rt "Directly connected nexthop, unicast address" 0 \ 562 - 2001:db8:101::/64 2001:db8:1::2 563 add_rt "Directly connected nexthop, unicast address with device" 0 \ 564 - 2001:db8:102::/64 2001:db8:1::2 "dummy0" 565 add_rt "Gateway is linklocal address" 0 \ 566 - 2001:db8:103::1/64 $llv1 "veth0" 567 568 # fails because LL address requires a device 569 add_rt "Gateway is linklocal address, no device" 2 \ 570 - 2001:db8:104::1/64 $llv1 571 572 # local address can not be a gateway 573 add_rt "Gateway can not be local unicast address" 2 \ 574 - 2001:db8:105::/64 2001:db8:1::1 575 add_rt "Gateway can not be local unicast address, with device" 2 \ 576 - 2001:db8:106::/64 2001:db8:1::1 "dummy0" 577 add_rt "Gateway can not be a local linklocal address" 2 \ 578 - 2001:db8:107::1/64 $lldummy "dummy0" 579 580 # VRF tests 581 add_rt "Gateway can be local address in a VRF" 0 \ 582 - 2001:db8:108::/64 2001:db8:51::2 583 add_rt "Gateway can be local address in a VRF, with device" 0 \ 584 - 2001:db8:109::/64 2001:db8:51::2 "veth0" 585 add_rt "Gateway can be local linklocal address in a VRF" 0 \ 586 - 2001:db8:110::1/64 $llv1 "veth0" 587 588 add_rt "Redirect to VRF lookup" 0 \ 589 - 2001:db8:111::/64 "" "red" 590 591 add_rt "VRF route, gateway can be local address in default VRF" 0 \ 592 red 2001:db8:112::/64 2001:db8:51::1 593 594 # local address in same VRF fails 595 add_rt "VRF route, gateway can not be a local address" 2 \ 596 red 2001:db8:113::1/64 2001:db8:2::1 597 add_rt "VRF route, gateway can not be a local addr with device" 2 \ 598 red 2001:db8:114::1/64 2001:db8:2::1 "dummy1" 599} 600 601# Default VRF: 602# dummy0 - 198.51.100.1/24 2001:db8:1::1/64 603# veth0 - 192.0.2.1/24 2001:db8:51::1/64 604# 605# VRF red: 606# dummy1 - 192.168.2.1/24 2001:db8:2::1/64 607# veth1 - 192.0.2.2/24 2001:db8:51::2/64 608# 609# [ dummy0 veth0 ]--[ veth1 dummy1 ] 610 611fib_nexthop_test() 612{ 613 setup 614 615 set -e 616 617 $IP -4 rule add pref 32765 table local 618 $IP -4 rule del pref 0 619 $IP -6 rule add pref 32765 table local 620 $IP -6 rule del pref 0 621 622 $IP link add red type vrf table 1 623 $IP link set red up 624 $IP -4 route add vrf red unreachable default metric 4278198272 625 $IP -6 route add vrf red unreachable default metric 4278198272 626 627 $IP link add veth0 type veth peer name veth1 628 $IP link set dev veth0 up 629 $IP address add 192.0.2.1/24 dev veth0 630 $IP -6 address add 2001:db8:51::1/64 dev veth0 631 632 $IP link set dev veth1 vrf red up 633 $IP address add 192.0.2.2/24 dev veth1 634 $IP -6 address add 2001:db8:51::2/64 dev veth1 635 636 $IP link add dummy1 type dummy 637 $IP link set dev dummy1 vrf red up 638 $IP address add 192.168.2.1/24 dev dummy1 639 $IP -6 address add 2001:db8:2::1/64 dev dummy1 640 set +e 641 642 sleep 1 643 fib4_nexthop 644 fib6_nexthop 645 646 ( 647 $IP link del dev dummy1 648 $IP link del veth0 649 $IP link del red 650 ) 2>/dev/null 651 cleanup 652} 653 654fib6_notify_test() 655{ 656 setup 657 658 echo 659 echo "Fib6 info length calculation in route notify test" 660 set -e 661 662 for i in 10 20 30 40 50 60 70; 663 do 664 $IP link add dummy_$i type dummy 665 $IP link set dev dummy_$i up 666 $IP -6 address add 2001:$i::1/64 dev dummy_$i 667 done 668 669 $NS_EXEC ip monitor route &> errors.txt & 670 sleep 2 671 672 $IP -6 route add 2001::/64 \ 673 nexthop via 2001:10::2 dev dummy_10 \ 674 nexthop encap ip6 dst 2002::20 via 2001:20::2 dev dummy_20 \ 675 nexthop encap ip6 dst 2002::30 via 2001:30::2 dev dummy_30 \ 676 nexthop encap ip6 dst 2002::40 via 2001:40::2 dev dummy_40 \ 677 nexthop encap ip6 dst 2002::50 via 2001:50::2 dev dummy_50 \ 678 nexthop encap ip6 dst 2002::60 via 2001:60::2 dev dummy_60 \ 679 nexthop encap ip6 dst 2002::70 via 2001:70::2 dev dummy_70 680 681 set +e 682 683 err=`cat errors.txt |grep "Message too long"` 684 if [ -z "$err" ];then 685 ret=0 686 else 687 ret=1 688 fi 689 690 log_test $ret 0 "ipv6 route add notify" 691 692 { kill %% && wait %%; } 2>/dev/null 693 694 #rm errors.txt 695 696 cleanup &> /dev/null 697} 698 699 700fib_notify_test() 701{ 702 setup 703 704 echo 705 echo "Fib4 info length calculation in route notify test" 706 707 set -e 708 709 for i in 10 20 30 40 50 60 70; 710 do 711 $IP link add dummy_$i type dummy 712 $IP link set dev dummy_$i up 713 $IP address add 20.20.$i.2/24 dev dummy_$i 714 done 715 716 $NS_EXEC ip monitor route &> errors.txt & 717 sleep 2 718 719 $IP route add 10.0.0.0/24 \ 720 nexthop via 20.20.10.1 dev dummy_10 \ 721 nexthop encap ip dst 192.168.10.20 via 20.20.20.1 dev dummy_20 \ 722 nexthop encap ip dst 192.168.10.30 via 20.20.30.1 dev dummy_30 \ 723 nexthop encap ip dst 192.168.10.40 via 20.20.40.1 dev dummy_40 \ 724 nexthop encap ip dst 192.168.10.50 via 20.20.50.1 dev dummy_50 \ 725 nexthop encap ip dst 192.168.10.60 via 20.20.60.1 dev dummy_60 \ 726 nexthop encap ip dst 192.168.10.70 via 20.20.70.1 dev dummy_70 727 728 set +e 729 730 err=`cat errors.txt |grep "Message too long"` 731 if [ -z "$err" ];then 732 ret=0 733 else 734 ret=1 735 fi 736 737 log_test $ret 0 "ipv4 route add notify" 738 739 { kill %% && wait %%; } 2>/dev/null 740 741 rm errors.txt 742 743 cleanup &> /dev/null 744} 745 746# Create a new dummy_10 to remove all associated routes. 747reset_dummy_10() 748{ 749 $IP link del dev dummy_10 750 751 $IP link add dummy_10 type dummy 752 $IP link set dev dummy_10 up 753 $IP -6 address add 2001:10::1/64 dev dummy_10 754} 755 756check_rt_num() 757{ 758 local expected=$1 759 local num=$2 760 761 if [ $num -ne $expected ]; then 762 echo "FAIL: Expected $expected routes, got $num" 763 ret=1 764 else 765 ret=0 766 fi 767} 768 769check_rt_num_clean() 770{ 771 local expected=$1 772 local num=$2 773 774 if [ $num -ne $expected ]; then 775 log_test 1 0 "expected $expected routes, got $num" 776 set +e 777 cleanup &> /dev/null 778 return 1 779 fi 780 return 0 781} 782 783fib6_gc_test() 784{ 785 setup 786 787 echo 788 echo "Fib6 garbage collection test" 789 set -e 790 791 EXPIRE=5 792 GC_WAIT_TIME=$((EXPIRE * 2 + 2)) 793 794 # Check expiration of routes every $EXPIRE seconds (GC) 795 $NS_EXEC sysctl -wq net.ipv6.route.gc_interval=$EXPIRE 796 797 $IP link add dummy_10 type dummy 798 $IP link set dev dummy_10 up 799 $IP -6 address add 2001:10::1/64 dev dummy_10 800 801 $NS_EXEC sysctl -wq net.ipv6.route.flush=1 802 803 # Temporary routes 804 for i in $(seq 1 5); do 805 # Expire route after $EXPIRE seconds 806 $IP -6 route add 2001:20::$i \ 807 via 2001:10::2 dev dummy_10 expires $EXPIRE 808 done 809 sleep $GC_WAIT_TIME 810 $NS_EXEC sysctl -wq net.ipv6.route.flush=1 811 check_rt_num 0 $($IP -6 route list |grep expires|wc -l) 812 log_test $ret 0 "ipv6 route garbage collection" 813 814 reset_dummy_10 815 816 # Permanent routes 817 for i in $(seq 1 5); do 818 $IP -6 route add 2001:30::$i \ 819 via 2001:10::2 dev dummy_10 820 done 821 # Temporary routes 822 for i in $(seq 1 5); do 823 # Expire route after $EXPIRE seconds 824 $IP -6 route add 2001:20::$i \ 825 via 2001:10::2 dev dummy_10 expires $EXPIRE 826 done 827 # Wait for GC 828 sleep $GC_WAIT_TIME 829 check_rt_num 0 $($IP -6 route list |grep expires|wc -l) 830 log_test $ret 0 "ipv6 route garbage collection (with permanent routes)" 831 832 reset_dummy_10 833 834 # Permanent routes 835 for i in $(seq 1 5); do 836 $IP -6 route add 2001:20::$i \ 837 via 2001:10::2 dev dummy_10 838 done 839 # Replace with temporary routes 840 for i in $(seq 1 5); do 841 # Expire route after $EXPIRE seconds 842 $IP -6 route replace 2001:20::$i \ 843 via 2001:10::2 dev dummy_10 expires $EXPIRE 844 done 845 # Wait for GC 846 sleep $GC_WAIT_TIME 847 check_rt_num 0 $($IP -6 route list |grep expires|wc -l) 848 log_test $ret 0 "ipv6 route garbage collection (replace with expires)" 849 850 reset_dummy_10 851 852 # Temporary routes 853 for i in $(seq 1 5); do 854 # Expire route after $EXPIRE seconds 855 $IP -6 route add 2001:20::$i \ 856 via 2001:10::2 dev dummy_10 expires $EXPIRE 857 done 858 # Replace with permanent routes 859 for i in $(seq 1 5); do 860 $IP -6 route replace 2001:20::$i \ 861 via 2001:10::2 dev dummy_10 862 done 863 check_rt_num_clean 0 $($IP -6 route list |grep expires|wc -l) || return 864 865 # Wait for GC 866 sleep $GC_WAIT_TIME 867 check_rt_num 5 $($IP -6 route list |grep -v expires|grep 2001:20::|wc -l) 868 log_test $ret 0 "ipv6 route garbage collection (replace with permanent)" 869 870 # ra6 is required for the next test. (ipv6toolkit) 871 if [ ! -x "$(command -v ra6)" ]; then 872 echo "SKIP: ra6 not found." 873 set +e 874 cleanup &> /dev/null 875 return 876 fi 877 878 # Delete dummy_10 and remove all routes 879 $IP link del dev dummy_10 880 881 # Create a pair of veth devices to send a RA message from one 882 # device to another. 883 $IP link add veth1 type veth peer name veth2 884 $IP link set dev veth1 up 885 $IP link set dev veth2 up 886 $IP -6 address add 2001:10::1/64 dev veth1 nodad 887 $IP -6 address add 2001:10::2/64 dev veth2 nodad 888 889 # Make veth1 ready to receive RA messages. 890 $NS_EXEC sysctl -wq net.ipv6.conf.veth1.accept_ra=2 891 892 # Send a RA message with a route from veth2 to veth1. 893 $NS_EXEC ra6 -i veth2 -d 2001:10::1 -t $EXPIRE 894 895 # Wait for the RA message. 896 sleep 1 897 898 # systemd may mess up the test. You syould make sure that 899 # systemd-networkd.service and systemd-networkd.socket are stopped. 900 check_rt_num_clean 1 $($IP -6 route list|grep expires|wc -l) || return 901 902 # Wait for GC 903 sleep $GC_WAIT_TIME 904 check_rt_num 0 $($IP -6 route list |grep expires|wc -l) 905 log_test $ret 0 "ipv6 route garbage collection (RA message)" 906 907 set +e 908 909 cleanup &> /dev/null 910} 911 912fib_suppress_test() 913{ 914 echo 915 echo "FIB rule with suppress_prefixlength" 916 setup 917 918 $IP link add dummy1 type dummy 919 $IP link set dummy1 up 920 $IP -6 route add default dev dummy1 921 $IP -6 rule add table main suppress_prefixlength 0 922 ping -f -c 1000 -W 1 1234::1 >/dev/null 2>&1 923 $IP -6 rule del table main suppress_prefixlength 0 924 $IP link del dummy1 925 926 # If we got here without crashing, we're good. 927 log_test 0 0 "FIB rule suppress test" 928 929 cleanup 930} 931 932################################################################################ 933# Tests on route add and replace 934 935run_cmd() 936{ 937 local cmd="$1" 938 local out 939 local stderr="2>/dev/null" 940 941 if [ "$VERBOSE" = "1" ]; then 942 printf " COMMAND: $cmd\n" 943 stderr= 944 fi 945 946 out=$(eval $cmd $stderr) 947 rc=$? 948 if [ "$VERBOSE" = "1" -a -n "$out" ]; then 949 echo " $out" 950 fi 951 952 [ "$VERBOSE" = "1" ] && echo 953 954 return $rc 955} 956 957check_expected() 958{ 959 local out="$1" 960 local expected="$2" 961 local rc=0 962 963 [ "${out}" = "${expected}" ] && return 0 964 965 if [ -z "${out}" ]; then 966 if [ "$VERBOSE" = "1" ]; then 967 printf "\nNo route entry found\n" 968 printf "Expected:\n" 969 printf " ${expected}\n" 970 fi 971 return 1 972 fi 973 974 # tricky way to convert output to 1-line without ip's 975 # messy '\'; this drops all extra white space 976 out=$(echo ${out}) 977 if [ "${out}" != "${expected}" ]; then 978 rc=1 979 if [ "${VERBOSE}" = "1" ]; then 980 printf " Unexpected route entry. Have:\n" 981 printf " ${out}\n" 982 printf " Expected:\n" 983 printf " ${expected}\n\n" 984 fi 985 fi 986 987 return $rc 988} 989 990# add route for a prefix, flushing any existing routes first 991# expected to be the first step of a test 992add_route6() 993{ 994 local pfx="$1" 995 local nh="$2" 996 local out 997 998 if [ "$VERBOSE" = "1" ]; then 999 echo 1000 echo " ##################################################" 1001 echo 1002 fi 1003 1004 run_cmd "$IP -6 ro flush ${pfx}" 1005 [ $? -ne 0 ] && exit 1 1006 1007 out=$($IP -6 ro ls match ${pfx}) 1008 if [ -n "$out" ]; then 1009 echo "Failed to flush routes for prefix used for tests." 1010 exit 1 1011 fi 1012 1013 run_cmd "$IP -6 ro add ${pfx} ${nh}" 1014 if [ $? -ne 0 ]; then 1015 echo "Failed to add initial route for test." 1016 exit 1 1017 fi 1018} 1019 1020# add initial route - used in replace route tests 1021add_initial_route6() 1022{ 1023 add_route6 "2001:db8:104::/64" "$1" 1024} 1025 1026check_route6() 1027{ 1028 local pfx 1029 local expected="$1" 1030 local out 1031 local rc=0 1032 1033 set -- $expected 1034 pfx=$1 1035 1036 out=$($IP -6 ro ls match ${pfx} | sed -e 's/ pref medium//') 1037 check_expected "${out}" "${expected}" 1038} 1039 1040route_cleanup() 1041{ 1042 $IP li del red 2>/dev/null 1043 $IP li del dummy1 2>/dev/null 1044 $IP li del veth1 2>/dev/null 1045 $IP li del veth3 2>/dev/null 1046 1047 cleanup &> /dev/null 1048} 1049 1050route_setup() 1051{ 1052 route_cleanup 1053 setup 1054 1055 [ "${VERBOSE}" = "1" ] && set -x 1056 set -e 1057 1058 setup_ns ns2 1059 ip netns exec $ns2 sysctl -qw net.ipv4.ip_forward=1 1060 ip netns exec $ns2 sysctl -qw net.ipv6.conf.all.forwarding=1 1061 1062 $IP li add veth1 type veth peer name veth2 1063 $IP li add veth3 type veth peer name veth4 1064 1065 $IP li set veth1 up 1066 $IP li set veth3 up 1067 $IP li set veth2 netns $ns2 up 1068 $IP li set veth4 netns $ns2 up 1069 ip -netns $ns2 li add dummy1 type dummy 1070 ip -netns $ns2 li set dummy1 up 1071 1072 $IP -6 addr add 2001:db8:101::1/64 dev veth1 nodad 1073 $IP -6 addr add 2001:db8:103::1/64 dev veth3 nodad 1074 $IP addr add 172.16.101.1/24 dev veth1 1075 $IP addr add 172.16.103.1/24 dev veth3 1076 1077 ip -netns $ns2 -6 addr add 2001:db8:101::2/64 dev veth2 nodad 1078 ip -netns $ns2 -6 addr add 2001:db8:103::2/64 dev veth4 nodad 1079 ip -netns $ns2 -6 addr add 2001:db8:104::1/64 dev dummy1 nodad 1080 1081 ip -netns $ns2 addr add 172.16.101.2/24 dev veth2 1082 ip -netns $ns2 addr add 172.16.103.2/24 dev veth4 1083 ip -netns $ns2 addr add 172.16.104.1/24 dev dummy1 1084 1085 set +e 1086} 1087 1088# assumption is that basic add of a single path route works 1089# otherwise just adding an address on an interface is broken 1090ipv6_rt_add() 1091{ 1092 local rc 1093 1094 echo 1095 echo "IPv6 route add / append tests" 1096 1097 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1098 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 1099 run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2" 1100 log_test $? 2 "Attempt to add duplicate route - gw" 1101 1102 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1103 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 1104 run_cmd "$IP -6 ro add 2001:db8:104::/64 dev veth3" 1105 log_test $? 2 "Attempt to add duplicate route - dev only" 1106 1107 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1108 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 1109 run_cmd "$IP -6 ro add unreachable 2001:db8:104::/64" 1110 log_test $? 2 "Attempt to add duplicate route - reject route" 1111 1112 # route append with same prefix adds a new route 1113 # - iproute2 sets NLM_F_CREATE | NLM_F_APPEND 1114 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 1115 run_cmd "$IP -6 ro append 2001:db8:104::/64 via 2001:db8:103::2" 1116 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" 1117 log_test $? 0 "Append nexthop to existing route - gw" 1118 1119 # insert mpath directly 1120 add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1121 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" 1122 log_test $? 0 "Add multipath route" 1123 1124 add_route6 "2001:db8:104::/64" "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1125 run_cmd "$IP -6 ro add 2001:db8:104::/64 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1126 log_test $? 2 "Attempt to add duplicate multipath route" 1127 1128 # insert of a second route without append but different metric 1129 add_route6 "2001:db8:104::/64" "via 2001:db8:101::2" 1130 run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::2 metric 512" 1131 rc=$? 1132 if [ $rc -eq 0 ]; then 1133 run_cmd "$IP -6 ro add 2001:db8:104::/64 via 2001:db8:103::3 metric 256" 1134 rc=$? 1135 fi 1136 log_test $rc 0 "Route add with different metrics" 1137 1138 run_cmd "$IP -6 ro del 2001:db8:104::/64 metric 512" 1139 rc=$? 1140 if [ $rc -eq 0 ]; then 1141 check_route6 "2001:db8:104::/64 via 2001:db8:103::3 dev veth3 metric 256 2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024" 1142 rc=$? 1143 fi 1144 log_test $rc 0 "Route delete with metric" 1145} 1146 1147ipv6_rt_replace_single() 1148{ 1149 # single path with single path 1150 # 1151 add_initial_route6 "via 2001:db8:101::2" 1152 run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:103::2" 1153 check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024" 1154 log_test $? 0 "Single path with single path" 1155 1156 # single path with multipath 1157 # 1158 add_initial_route6 "nexthop via 2001:db8:101::2" 1159 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::2" 1160 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" 1161 log_test $? 0 "Single path with multipath" 1162 1163 # single path with single path using MULTIPATH attribute 1164 # 1165 add_initial_route6 "via 2001:db8:101::2" 1166 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:103::2" 1167 check_route6 "2001:db8:104::/64 via 2001:db8:103::2 dev veth3 metric 1024" 1168 log_test $? 0 "Single path with single path via multipath attribute" 1169 1170 # route replace fails - invalid nexthop 1171 add_initial_route6 "via 2001:db8:101::2" 1172 run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:104::2" 1173 if [ $? -eq 0 ]; then 1174 # previous command is expected to fail so if it returns 0 1175 # that means the test failed. 1176 log_test 0 1 "Invalid nexthop" 1177 else 1178 check_route6 "2001:db8:104::/64 via 2001:db8:101::2 dev veth1 metric 1024" 1179 log_test $? 0 "Invalid nexthop" 1180 fi 1181 1182 # replace non-existent route 1183 # - note use of change versus replace since ip adds NLM_F_CREATE 1184 # for replace 1185 add_initial_route6 "via 2001:db8:101::2" 1186 run_cmd "$IP -6 ro change 2001:db8:105::/64 via 2001:db8:101::2" 1187 log_test $? 2 "Single path - replace of non-existent route" 1188} 1189 1190ipv6_rt_replace_mpath() 1191{ 1192 # multipath with multipath 1193 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1194 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3" 1195 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" 1196 log_test $? 0 "Multipath with multipath" 1197 1198 # multipath with single 1199 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1200 run_cmd "$IP -6 ro replace 2001:db8:104::/64 via 2001:db8:101::3" 1201 check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024" 1202 log_test $? 0 "Multipath with single path" 1203 1204 # multipath with single 1205 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1206 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3" 1207 check_route6 "2001:db8:104::/64 via 2001:db8:101::3 dev veth1 metric 1024" 1208 log_test $? 0 "Multipath with single path via multipath attribute" 1209 1210 # multipath with dev-only 1211 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1212 run_cmd "$IP -6 ro replace 2001:db8:104::/64 dev veth1" 1213 check_route6 "2001:db8:104::/64 dev veth1 metric 1024" 1214 log_test $? 0 "Multipath with dev-only" 1215 1216 # route replace fails - invalid nexthop 1 1217 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1218 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:111::3 nexthop via 2001:db8:103::3" 1219 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" 1220 log_test $? 0 "Multipath - invalid first nexthop" 1221 1222 # route replace fails - invalid nexthop 2 1223 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1224 run_cmd "$IP -6 ro replace 2001:db8:104::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:113::3" 1225 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" 1226 log_test $? 0 "Multipath - invalid second nexthop" 1227 1228 # multipath non-existent route 1229 add_initial_route6 "nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1230 run_cmd "$IP -6 ro change 2001:db8:105::/64 nexthop via 2001:db8:101::3 nexthop via 2001:db8:103::3" 1231 log_test $? 2 "Multipath - replace of non-existent route" 1232} 1233 1234ipv6_rt_replace() 1235{ 1236 echo 1237 echo "IPv6 route replace tests" 1238 1239 ipv6_rt_replace_single 1240 ipv6_rt_replace_mpath 1241} 1242 1243ipv6_rt_dsfield() 1244{ 1245 echo 1246 echo "IPv6 route with dsfield tests" 1247 1248 run_cmd "$IP -6 route flush 2001:db8:102::/64" 1249 1250 # IPv6 doesn't support routing based on dsfield 1251 run_cmd "$IP -6 route add 2001:db8:102::/64 dsfield 0x04 via 2001:db8:101::2" 1252 log_test $? 2 "Reject route with dsfield" 1253} 1254 1255ipv6_route_test() 1256{ 1257 route_setup 1258 1259 ipv6_rt_add 1260 ipv6_rt_replace 1261 ipv6_rt_dsfield 1262 1263 route_cleanup 1264} 1265 1266ip_addr_metric_check() 1267{ 1268 ip addr help 2>&1 | grep -q metric 1269 if [ $? -ne 0 ]; then 1270 echo "iproute2 command does not support metric for addresses. Skipping test" 1271 return 1 1272 fi 1273 1274 return 0 1275} 1276 1277ipv6_addr_metric_test() 1278{ 1279 local rc 1280 1281 echo 1282 echo "IPv6 prefix route tests" 1283 1284 ip_addr_metric_check || return 1 1285 1286 setup 1287 1288 set -e 1289 $IP li add dummy1 type dummy 1290 $IP li add dummy2 type dummy 1291 $IP li set dummy1 up 1292 $IP li set dummy2 up 1293 1294 # default entry is metric 256 1295 run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64" 1296 run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64" 1297 set +e 1298 1299 check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 256 2001:db8:104::/64 dev dummy2 proto kernel metric 256" 1300 log_test $? 0 "Default metric" 1301 1302 set -e 1303 run_cmd "$IP -6 addr flush dev dummy1" 1304 run_cmd "$IP -6 addr add dev dummy1 2001:db8:104::1/64 metric 257" 1305 set +e 1306 1307 check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 256 2001:db8:104::/64 dev dummy1 proto kernel metric 257" 1308 log_test $? 0 "User specified metric on first device" 1309 1310 set -e 1311 run_cmd "$IP -6 addr flush dev dummy2" 1312 run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::2/64 metric 258" 1313 set +e 1314 1315 check_route6 "2001:db8:104::/64 dev dummy1 proto kernel metric 257 2001:db8:104::/64 dev dummy2 proto kernel metric 258" 1316 log_test $? 0 "User specified metric on second device" 1317 1318 run_cmd "$IP -6 addr del dev dummy1 2001:db8:104::1/64 metric 257" 1319 rc=$? 1320 if [ $rc -eq 0 ]; then 1321 check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 258" 1322 rc=$? 1323 fi 1324 log_test $rc 0 "Delete of address on first device" 1325 1326 run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::2/64 metric 259" 1327 rc=$? 1328 if [ $rc -eq 0 ]; then 1329 check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259" 1330 rc=$? 1331 fi 1332 log_test $rc 0 "Modify metric of address" 1333 1334 # verify prefix route removed on down 1335 run_cmd "ip netns exec $ns1 sysctl -qw net.ipv6.conf.all.keep_addr_on_down=1" 1336 run_cmd "$IP li set dev dummy2 down" 1337 rc=$? 1338 if [ $rc -eq 0 ]; then 1339 out=$($IP -6 ro ls match 2001:db8:104::/64) 1340 check_expected "${out}" "" 1341 rc=$? 1342 fi 1343 log_test $rc 0 "Prefix route removed on link down" 1344 1345 # verify prefix route re-inserted with assigned metric 1346 run_cmd "$IP li set dev dummy2 up" 1347 rc=$? 1348 if [ $rc -eq 0 ]; then 1349 check_route6 "2001:db8:104::/64 dev dummy2 proto kernel metric 259" 1350 rc=$? 1351 fi 1352 log_test $rc 0 "Prefix route with metric on link up" 1353 1354 # verify peer metric added correctly 1355 set -e 1356 run_cmd "$IP -6 addr flush dev dummy2" 1357 run_cmd "$IP -6 addr add dev dummy2 2001:db8:104::1 peer 2001:db8:104::2 metric 260" 1358 set +e 1359 1360 check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 260" 1361 log_test $? 0 "Set metric with peer route on local side" 1362 check_route6 "2001:db8:104::2 dev dummy2 proto kernel metric 260" 1363 log_test $? 0 "Set metric with peer route on peer side" 1364 1365 set -e 1366 run_cmd "$IP -6 addr change dev dummy2 2001:db8:104::1 peer 2001:db8:104::3 metric 261" 1367 set +e 1368 1369 check_route6 "2001:db8:104::1 dev dummy2 proto kernel metric 261" 1370 log_test $? 0 "Modify metric and peer address on local side" 1371 check_route6 "2001:db8:104::3 dev dummy2 proto kernel metric 261" 1372 log_test $? 0 "Modify metric and peer address on peer side" 1373 1374 $IP li del dummy1 1375 $IP li del dummy2 1376 cleanup 1377} 1378 1379ipv6_route_metrics_test() 1380{ 1381 local rc 1382 1383 echo 1384 echo "IPv6 routes with metrics" 1385 1386 route_setup 1387 1388 # 1389 # single path with metrics 1390 # 1391 run_cmd "$IP -6 ro add 2001:db8:111::/64 via 2001:db8:101::2 mtu 1400" 1392 rc=$? 1393 if [ $rc -eq 0 ]; then 1394 check_route6 "2001:db8:111::/64 via 2001:db8:101::2 dev veth1 metric 1024 mtu 1400" 1395 rc=$? 1396 fi 1397 log_test $rc 0 "Single path route with mtu metric" 1398 1399 1400 # 1401 # multipath via separate routes with metrics 1402 # 1403 run_cmd "$IP -6 ro add 2001:db8:112::/64 via 2001:db8:101::2 mtu 1400" 1404 run_cmd "$IP -6 ro append 2001:db8:112::/64 via 2001:db8:103::2" 1405 rc=$? 1406 if [ $rc -eq 0 ]; then 1407 check_route6 "2001:db8:112::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 1408 rc=$? 1409 fi 1410 log_test $rc 0 "Multipath route via 2 single routes with mtu metric on first" 1411 1412 # second route is coalesced to first to make a multipath route. 1413 # MTU of the second path is hidden from display! 1414 run_cmd "$IP -6 ro add 2001:db8:113::/64 via 2001:db8:101::2" 1415 run_cmd "$IP -6 ro append 2001:db8:113::/64 via 2001:db8:103::2 mtu 1400" 1416 rc=$? 1417 if [ $rc -eq 0 ]; then 1418 check_route6 "2001:db8:113::/64 metric 1024 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 1419 rc=$? 1420 fi 1421 log_test $rc 0 "Multipath route via 2 single routes with mtu metric on 2nd" 1422 1423 run_cmd "$IP -6 ro del 2001:db8:113::/64 via 2001:db8:101::2" 1424 if [ $? -eq 0 ]; then 1425 check_route6 "2001:db8:113::/64 via 2001:db8:103::2 dev veth3 metric 1024 mtu 1400" 1426 log_test $? 0 " MTU of second leg" 1427 fi 1428 1429 # 1430 # multipath with metrics 1431 # 1432 run_cmd "$IP -6 ro add 2001:db8:115::/64 mtu 1400 nexthop via 2001:db8:101::2 nexthop via 2001:db8:103::2" 1433 rc=$? 1434 if [ $rc -eq 0 ]; then 1435 check_route6 "2001:db8:115::/64 metric 1024 mtu 1400 nexthop via 2001:db8:101::2 dev veth1 weight 1 nexthop via 2001:db8:103::2 dev veth3 weight 1" 1436 rc=$? 1437 fi 1438 log_test $rc 0 "Multipath route with mtu metric" 1439 1440 $IP -6 ro add 2001:db8:104::/64 via 2001:db8:101::2 mtu 1300 1441 run_cmd "ip netns exec $ns1 ${ping6} -w1 -c1 -s 1500 2001:db8:104::1" 1442 log_test $? 0 "Using route with mtu metric" 1443 1444 run_cmd "$IP -6 ro add 2001:db8:114::/64 via 2001:db8:101::2 congctl lock foo" 1445 log_test $? 2 "Invalid metric (fails metric_convert)" 1446 1447 route_cleanup 1448} 1449 1450# add route for a prefix, flushing any existing routes first 1451# expected to be the first step of a test 1452add_route() 1453{ 1454 local pfx="$1" 1455 local nh="$2" 1456 local out 1457 1458 if [ "$VERBOSE" = "1" ]; then 1459 echo 1460 echo " ##################################################" 1461 echo 1462 fi 1463 1464 run_cmd "$IP ro flush ${pfx}" 1465 [ $? -ne 0 ] && exit 1 1466 1467 out=$($IP ro ls match ${pfx}) 1468 if [ -n "$out" ]; then 1469 echo "Failed to flush routes for prefix used for tests." 1470 exit 1 1471 fi 1472 1473 run_cmd "$IP ro add ${pfx} ${nh}" 1474 if [ $? -ne 0 ]; then 1475 echo "Failed to add initial route for test." 1476 exit 1 1477 fi 1478} 1479 1480# add initial route - used in replace route tests 1481add_initial_route() 1482{ 1483 add_route "172.16.104.0/24" "$1" 1484} 1485 1486check_route() 1487{ 1488 local pfx 1489 local expected="$1" 1490 local out 1491 1492 set -- $expected 1493 pfx=$1 1494 [ "${pfx}" = "unreachable" ] && pfx=$2 1495 1496 out=$($IP ro ls match ${pfx}) 1497 check_expected "${out}" "${expected}" 1498} 1499 1500# assumption is that basic add of a single path route works 1501# otherwise just adding an address on an interface is broken 1502ipv4_rt_add() 1503{ 1504 local rc 1505 1506 echo 1507 echo "IPv4 route add / append tests" 1508 1509 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1510 add_route "172.16.104.0/24" "via 172.16.101.2" 1511 run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2" 1512 log_test $? 2 "Attempt to add duplicate route - gw" 1513 1514 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1515 add_route "172.16.104.0/24" "via 172.16.101.2" 1516 run_cmd "$IP ro add 172.16.104.0/24 dev veth3" 1517 log_test $? 2 "Attempt to add duplicate route - dev only" 1518 1519 # route add same prefix - fails with EEXISTS b/c ip adds NLM_F_EXCL 1520 add_route "172.16.104.0/24" "via 172.16.101.2" 1521 run_cmd "$IP ro add unreachable 172.16.104.0/24" 1522 log_test $? 2 "Attempt to add duplicate route - reject route" 1523 1524 # iproute2 prepend only sets NLM_F_CREATE 1525 # - adds a new route; does NOT convert existing route to ECMP 1526 add_route "172.16.104.0/24" "via 172.16.101.2" 1527 run_cmd "$IP ro prepend 172.16.104.0/24 via 172.16.103.2" 1528 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" 1529 log_test $? 0 "Add new nexthop for existing prefix" 1530 1531 # route append with same prefix adds a new route 1532 # - iproute2 sets NLM_F_CREATE | NLM_F_APPEND 1533 add_route "172.16.104.0/24" "via 172.16.101.2" 1534 run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2" 1535 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" 1536 log_test $? 0 "Append nexthop to existing route - gw" 1537 1538 add_route "172.16.104.0/24" "via 172.16.101.2" 1539 run_cmd "$IP ro append 172.16.104.0/24 dev veth3" 1540 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 dev veth3 scope link" 1541 log_test $? 0 "Append nexthop to existing route - dev only" 1542 1543 add_route "172.16.104.0/24" "via 172.16.101.2" 1544 run_cmd "$IP ro append unreachable 172.16.104.0/24" 1545 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 unreachable 172.16.104.0/24" 1546 log_test $? 0 "Append nexthop to existing route - reject route" 1547 1548 run_cmd "$IP ro flush 172.16.104.0/24" 1549 run_cmd "$IP ro add unreachable 172.16.104.0/24" 1550 run_cmd "$IP ro append 172.16.104.0/24 via 172.16.103.2" 1551 check_route "unreachable 172.16.104.0/24 172.16.104.0/24 via 172.16.103.2 dev veth3" 1552 log_test $? 0 "Append nexthop to existing reject route - gw" 1553 1554 run_cmd "$IP ro flush 172.16.104.0/24" 1555 run_cmd "$IP ro add unreachable 172.16.104.0/24" 1556 run_cmd "$IP ro append 172.16.104.0/24 dev veth3" 1557 check_route "unreachable 172.16.104.0/24 172.16.104.0/24 dev veth3 scope link" 1558 log_test $? 0 "Append nexthop to existing reject route - dev only" 1559 1560 # insert mpath directly 1561 add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1562 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" 1563 log_test $? 0 "add multipath route" 1564 1565 add_route "172.16.104.0/24" "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1566 run_cmd "$IP ro add 172.16.104.0/24 nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1567 log_test $? 2 "Attempt to add duplicate multipath route" 1568 1569 # insert of a second route without append but different metric 1570 add_route "172.16.104.0/24" "via 172.16.101.2" 1571 run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.2 metric 512" 1572 rc=$? 1573 if [ $rc -eq 0 ]; then 1574 run_cmd "$IP ro add 172.16.104.0/24 via 172.16.103.3 metric 256" 1575 rc=$? 1576 fi 1577 log_test $rc 0 "Route add with different metrics" 1578 1579 run_cmd "$IP ro del 172.16.104.0/24 metric 512" 1580 rc=$? 1581 if [ $rc -eq 0 ]; then 1582 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1 172.16.104.0/24 via 172.16.103.3 dev veth3 metric 256" 1583 rc=$? 1584 fi 1585 log_test $rc 0 "Route delete with metric" 1586} 1587 1588ipv4_rt_replace_single() 1589{ 1590 # single path with single path 1591 # 1592 add_initial_route "via 172.16.101.2" 1593 run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.103.2" 1594 check_route "172.16.104.0/24 via 172.16.103.2 dev veth3" 1595 log_test $? 0 "Single path with single path" 1596 1597 # single path with multipath 1598 # 1599 add_initial_route "nexthop via 172.16.101.2" 1600 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.2" 1601 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" 1602 log_test $? 0 "Single path with multipath" 1603 1604 # single path with reject 1605 # 1606 add_initial_route "nexthop via 172.16.101.2" 1607 run_cmd "$IP ro replace unreachable 172.16.104.0/24" 1608 check_route "unreachable 172.16.104.0/24" 1609 log_test $? 0 "Single path with reject route" 1610 1611 # single path with single path using MULTIPATH attribute 1612 # 1613 add_initial_route "via 172.16.101.2" 1614 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.103.2" 1615 check_route "172.16.104.0/24 via 172.16.103.2 dev veth3" 1616 log_test $? 0 "Single path with single path via multipath attribute" 1617 1618 # route replace fails - invalid nexthop 1619 add_initial_route "via 172.16.101.2" 1620 run_cmd "$IP ro replace 172.16.104.0/24 via 2001:db8:104::2" 1621 if [ $? -eq 0 ]; then 1622 # previous command is expected to fail so if it returns 0 1623 # that means the test failed. 1624 log_test 0 1 "Invalid nexthop" 1625 else 1626 check_route "172.16.104.0/24 via 172.16.101.2 dev veth1" 1627 log_test $? 0 "Invalid nexthop" 1628 fi 1629 1630 # replace non-existent route 1631 # - note use of change versus replace since ip adds NLM_F_CREATE 1632 # for replace 1633 add_initial_route "via 172.16.101.2" 1634 run_cmd "$IP ro change 172.16.105.0/24 via 172.16.101.2" 1635 log_test $? 2 "Single path - replace of non-existent route" 1636} 1637 1638ipv4_rt_replace_mpath() 1639{ 1640 # multipath with multipath 1641 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1642 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3" 1643 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" 1644 log_test $? 0 "Multipath with multipath" 1645 1646 # multipath with single 1647 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1648 run_cmd "$IP ro replace 172.16.104.0/24 via 172.16.101.3" 1649 check_route "172.16.104.0/24 via 172.16.101.3 dev veth1" 1650 log_test $? 0 "Multipath with single path" 1651 1652 # multipath with single 1653 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1654 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3" 1655 check_route "172.16.104.0/24 via 172.16.101.3 dev veth1" 1656 log_test $? 0 "Multipath with single path via multipath attribute" 1657 1658 # multipath with reject 1659 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1660 run_cmd "$IP ro replace unreachable 172.16.104.0/24" 1661 check_route "unreachable 172.16.104.0/24" 1662 log_test $? 0 "Multipath with reject route" 1663 1664 # route replace fails - invalid nexthop 1 1665 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1666 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.111.3 nexthop via 172.16.103.3" 1667 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" 1668 log_test $? 0 "Multipath - invalid first nexthop" 1669 1670 # route replace fails - invalid nexthop 2 1671 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1672 run_cmd "$IP ro replace 172.16.104.0/24 nexthop via 172.16.101.3 nexthop via 172.16.113.3" 1673 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" 1674 log_test $? 0 "Multipath - invalid second nexthop" 1675 1676 # multipath non-existent route 1677 add_initial_route "nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1678 run_cmd "$IP ro change 172.16.105.0/24 nexthop via 172.16.101.3 nexthop via 172.16.103.3" 1679 log_test $? 2 "Multipath - replace of non-existent route" 1680} 1681 1682ipv4_rt_replace() 1683{ 1684 echo 1685 echo "IPv4 route replace tests" 1686 1687 ipv4_rt_replace_single 1688 ipv4_rt_replace_mpath 1689} 1690 1691# checks that cached input route on VRF port is deleted 1692# when VRF is deleted 1693ipv4_local_rt_cache() 1694{ 1695 run_cmd "ip addr add 10.0.0.1/32 dev lo" 1696 run_cmd "setup_ns test-ns" 1697 run_cmd "ip link add veth-outside type veth peer name veth-inside" 1698 run_cmd "ip link add vrf-100 type vrf table 1100" 1699 run_cmd "ip link set veth-outside master vrf-100" 1700 run_cmd "ip link set veth-inside netns $test-ns" 1701 run_cmd "ip link set veth-outside up" 1702 run_cmd "ip link set vrf-100 up" 1703 run_cmd "ip route add 10.1.1.1/32 dev veth-outside table 1100" 1704 run_cmd "ip netns exec $test-ns ip link set veth-inside up" 1705 run_cmd "ip netns exec $test-ns ip addr add 10.1.1.1/32 dev veth-inside" 1706 run_cmd "ip netns exec $test-ns ip route add 10.0.0.1/32 dev veth-inside" 1707 run_cmd "ip netns exec $test-ns ip route add default via 10.0.0.1" 1708 run_cmd "ip netns exec $test-ns ping 10.0.0.1 -c 1 -i 1" 1709 run_cmd "ip link delete vrf-100" 1710 1711 # if we do not hang test is a success 1712 log_test $? 0 "Cached route removed from VRF port device" 1713} 1714 1715ipv4_rt_dsfield() 1716{ 1717 echo 1718 echo "IPv4 route with dsfield tests" 1719 1720 run_cmd "$IP route flush 172.16.102.0/24" 1721 1722 # New routes should reject dsfield options that interfere with ECN 1723 run_cmd "$IP route add 172.16.102.0/24 dsfield 0x01 via 172.16.101.2" 1724 log_test $? 2 "Reject route with dsfield 0x01" 1725 1726 run_cmd "$IP route add 172.16.102.0/24 dsfield 0x02 via 172.16.101.2" 1727 log_test $? 2 "Reject route with dsfield 0x02" 1728 1729 run_cmd "$IP route add 172.16.102.0/24 dsfield 0x03 via 172.16.101.2" 1730 log_test $? 2 "Reject route with dsfield 0x03" 1731 1732 # A generic route that doesn't take DSCP into account 1733 run_cmd "$IP route add 172.16.102.0/24 via 172.16.101.2" 1734 1735 # A more specific route for DSCP 0x10 1736 run_cmd "$IP route add 172.16.102.0/24 dsfield 0x10 via 172.16.103.2" 1737 1738 # DSCP 0x10 should match the specific route, no matter the ECN bits 1739 $IP route get fibmatch 172.16.102.1 dsfield 0x10 | \ 1740 grep -q "via 172.16.103.2" 1741 log_test $? 0 "IPv4 route with DSCP and ECN:Not-ECT" 1742 1743 $IP route get fibmatch 172.16.102.1 dsfield 0x11 | \ 1744 grep -q "via 172.16.103.2" 1745 log_test $? 0 "IPv4 route with DSCP and ECN:ECT(1)" 1746 1747 $IP route get fibmatch 172.16.102.1 dsfield 0x12 | \ 1748 grep -q "via 172.16.103.2" 1749 log_test $? 0 "IPv4 route with DSCP and ECN:ECT(0)" 1750 1751 $IP route get fibmatch 172.16.102.1 dsfield 0x13 | \ 1752 grep -q "via 172.16.103.2" 1753 log_test $? 0 "IPv4 route with DSCP and ECN:CE" 1754 1755 # Unknown DSCP should match the generic route, no matter the ECN bits 1756 $IP route get fibmatch 172.16.102.1 dsfield 0x14 | \ 1757 grep -q "via 172.16.101.2" 1758 log_test $? 0 "IPv4 route with unknown DSCP and ECN:Not-ECT" 1759 1760 $IP route get fibmatch 172.16.102.1 dsfield 0x15 | \ 1761 grep -q "via 172.16.101.2" 1762 log_test $? 0 "IPv4 route with unknown DSCP and ECN:ECT(1)" 1763 1764 $IP route get fibmatch 172.16.102.1 dsfield 0x16 | \ 1765 grep -q "via 172.16.101.2" 1766 log_test $? 0 "IPv4 route with unknown DSCP and ECN:ECT(0)" 1767 1768 $IP route get fibmatch 172.16.102.1 dsfield 0x17 | \ 1769 grep -q "via 172.16.101.2" 1770 log_test $? 0 "IPv4 route with unknown DSCP and ECN:CE" 1771 1772 # Null DSCP should match the generic route, no matter the ECN bits 1773 $IP route get fibmatch 172.16.102.1 dsfield 0x00 | \ 1774 grep -q "via 172.16.101.2" 1775 log_test $? 0 "IPv4 route with no DSCP and ECN:Not-ECT" 1776 1777 $IP route get fibmatch 172.16.102.1 dsfield 0x01 | \ 1778 grep -q "via 172.16.101.2" 1779 log_test $? 0 "IPv4 route with no DSCP and ECN:ECT(1)" 1780 1781 $IP route get fibmatch 172.16.102.1 dsfield 0x02 | \ 1782 grep -q "via 172.16.101.2" 1783 log_test $? 0 "IPv4 route with no DSCP and ECN:ECT(0)" 1784 1785 $IP route get fibmatch 172.16.102.1 dsfield 0x03 | \ 1786 grep -q "via 172.16.101.2" 1787 log_test $? 0 "IPv4 route with no DSCP and ECN:CE" 1788} 1789 1790ipv4_route_test() 1791{ 1792 route_setup 1793 1794 ipv4_rt_add 1795 ipv4_rt_replace 1796 ipv4_local_rt_cache 1797 ipv4_rt_dsfield 1798 1799 route_cleanup 1800} 1801 1802ipv4_addr_metric_test() 1803{ 1804 local rc 1805 1806 echo 1807 echo "IPv4 prefix route tests" 1808 1809 ip_addr_metric_check || return 1 1810 1811 setup 1812 1813 set -e 1814 $IP li add dummy1 type dummy 1815 $IP li add dummy2 type dummy 1816 $IP li set dummy1 up 1817 $IP li set dummy2 up 1818 1819 # default entry is metric 256 1820 run_cmd "$IP addr add dev dummy1 172.16.104.1/24" 1821 run_cmd "$IP addr add dev dummy2 172.16.104.2/24" 1822 set +e 1823 1824 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" 1825 log_test $? 0 "Default metric" 1826 1827 set -e 1828 run_cmd "$IP addr flush dev dummy1" 1829 run_cmd "$IP addr add dev dummy1 172.16.104.1/24 metric 257" 1830 set +e 1831 1832 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" 1833 log_test $? 0 "User specified metric on first device" 1834 1835 set -e 1836 run_cmd "$IP addr flush dev dummy2" 1837 run_cmd "$IP addr add dev dummy2 172.16.104.2/24 metric 258" 1838 set +e 1839 1840 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" 1841 log_test $? 0 "User specified metric on second device" 1842 1843 run_cmd "$IP addr del dev dummy1 172.16.104.1/24 metric 257" 1844 rc=$? 1845 if [ $rc -eq 0 ]; then 1846 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 258" 1847 rc=$? 1848 fi 1849 log_test $rc 0 "Delete of address on first device" 1850 1851 run_cmd "$IP addr change dev dummy2 172.16.104.2/24 metric 259" 1852 rc=$? 1853 if [ $rc -eq 0 ]; then 1854 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259" 1855 rc=$? 1856 fi 1857 log_test $rc 0 "Modify metric of address" 1858 1859 # verify prefix route removed on down 1860 run_cmd "$IP li set dev dummy2 down" 1861 rc=$? 1862 if [ $rc -eq 0 ]; then 1863 out=$($IP ro ls match 172.16.104.0/24) 1864 check_expected "${out}" "" 1865 rc=$? 1866 fi 1867 log_test $rc 0 "Prefix route removed on link down" 1868 1869 # verify prefix route re-inserted with assigned metric 1870 run_cmd "$IP li set dev dummy2 up" 1871 rc=$? 1872 if [ $rc -eq 0 ]; then 1873 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.2 metric 259" 1874 rc=$? 1875 fi 1876 log_test $rc 0 "Prefix route with metric on link up" 1877 1878 # explicitly check for metric changes on edge scenarios 1879 run_cmd "$IP addr flush dev dummy2" 1880 run_cmd "$IP addr add dev dummy2 172.16.104.0/24 metric 259" 1881 run_cmd "$IP addr change dev dummy2 172.16.104.0/24 metric 260" 1882 rc=$? 1883 if [ $rc -eq 0 ]; then 1884 check_route "172.16.104.0/24 dev dummy2 proto kernel scope link src 172.16.104.0 metric 260" 1885 rc=$? 1886 fi 1887 log_test $rc 0 "Modify metric of .0/24 address" 1888 1889 run_cmd "$IP addr flush dev dummy2" 1890 run_cmd "$IP addr add dev dummy2 172.16.104.1/32 peer 172.16.104.2 metric 260" 1891 rc=$? 1892 if [ $rc -eq 0 ]; then 1893 check_route "172.16.104.2 dev dummy2 proto kernel scope link src 172.16.104.1 metric 260" 1894 rc=$? 1895 fi 1896 log_test $rc 0 "Set metric of address with peer route" 1897 1898 run_cmd "$IP addr change dev dummy2 172.16.104.1/32 peer 172.16.104.3 metric 261" 1899 rc=$? 1900 if [ $rc -eq 0 ]; then 1901 check_route "172.16.104.3 dev dummy2 proto kernel scope link src 172.16.104.1 metric 261" 1902 rc=$? 1903 fi 1904 log_test $rc 0 "Modify metric and peer address for peer route" 1905 1906 $IP li del dummy1 1907 $IP li del dummy2 1908 cleanup 1909} 1910 1911ipv4_route_metrics_test() 1912{ 1913 local rc 1914 1915 echo 1916 echo "IPv4 route add / append tests" 1917 1918 route_setup 1919 1920 run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 mtu 1400" 1921 rc=$? 1922 if [ $rc -eq 0 ]; then 1923 check_route "172.16.111.0/24 via 172.16.101.2 dev veth1 mtu 1400" 1924 rc=$? 1925 fi 1926 log_test $rc 0 "Single path route with mtu metric" 1927 1928 1929 run_cmd "$IP ro add 172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 nexthop via 172.16.103.2" 1930 rc=$? 1931 if [ $rc -eq 0 ]; then 1932 check_route "172.16.112.0/24 mtu 1400 nexthop via 172.16.101.2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1" 1933 rc=$? 1934 fi 1935 log_test $rc 0 "Multipath route with mtu metric" 1936 1937 $IP ro add 172.16.104.0/24 via 172.16.101.2 mtu 1300 1938 run_cmd "ip netns exec $ns1 ping -w1 -c1 -s 1500 172.16.104.1" 1939 log_test $? 0 "Using route with mtu metric" 1940 1941 run_cmd "$IP ro add 172.16.111.0/24 via 172.16.101.2 congctl lock foo" 1942 log_test $? 2 "Invalid metric (fails metric_convert)" 1943 1944 route_cleanup 1945} 1946 1947ipv4_del_addr_test() 1948{ 1949 echo 1950 echo "IPv4 delete address route tests" 1951 1952 setup 1953 1954 set -e 1955 $IP li add dummy1 type dummy 1956 $IP li set dummy1 up 1957 $IP li add dummy2 type dummy 1958 $IP li set dummy2 up 1959 $IP li add red type vrf table 1111 1960 $IP li set red up 1961 $IP ro add vrf red unreachable default 1962 $IP li set dummy2 vrf red 1963 1964 $IP addr add dev dummy1 172.16.104.1/24 1965 $IP addr add dev dummy1 172.16.104.11/24 1966 $IP addr add dev dummy1 172.16.104.12/24 1967 $IP addr add dev dummy1 172.16.104.13/24 1968 $IP addr add dev dummy2 172.16.104.1/24 1969 $IP addr add dev dummy2 172.16.104.11/24 1970 $IP addr add dev dummy2 172.16.104.12/24 1971 $IP route add 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11 1972 $IP route add 172.16.106.0/24 dev lo src 172.16.104.12 1973 $IP route add table 0 172.16.107.0/24 via 172.16.104.2 src 172.16.104.13 1974 $IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11 1975 $IP route add vrf red 172.16.106.0/24 dev lo src 172.16.104.12 1976 set +e 1977 1978 # removing address from device in vrf should only remove route from vrf table 1979 echo " Regular FIB info" 1980 1981 $IP addr del dev dummy2 172.16.104.11/24 1982 $IP ro ls vrf red | grep -q 172.16.105.0/24 1983 log_test $? 1 "Route removed from VRF when source address deleted" 1984 1985 $IP ro ls | grep -q 172.16.105.0/24 1986 log_test $? 0 "Route in default VRF not removed" 1987 1988 $IP addr add dev dummy2 172.16.104.11/24 1989 $IP route add vrf red 172.16.105.0/24 via 172.16.104.2 src 172.16.104.11 1990 1991 $IP addr del dev dummy1 172.16.104.11/24 1992 $IP ro ls | grep -q 172.16.105.0/24 1993 log_test $? 1 "Route removed in default VRF when source address deleted" 1994 1995 $IP ro ls vrf red | grep -q 172.16.105.0/24 1996 log_test $? 0 "Route in VRF is not removed by address delete" 1997 1998 # removing address from device in vrf should only remove route from vrf 1999 # table even when the associated fib info only differs in table ID 2000 echo " Identical FIB info with different table ID" 2001 2002 $IP addr del dev dummy2 172.16.104.12/24 2003 $IP ro ls vrf red | grep -q 172.16.106.0/24 2004 log_test $? 1 "Route removed from VRF when source address deleted" 2005 2006 $IP ro ls | grep -q 172.16.106.0/24 2007 log_test $? 0 "Route in default VRF not removed" 2008 2009 $IP addr add dev dummy2 172.16.104.12/24 2010 $IP route add vrf red 172.16.106.0/24 dev lo src 172.16.104.12 2011 2012 $IP addr del dev dummy1 172.16.104.12/24 2013 $IP ro ls | grep -q 172.16.106.0/24 2014 log_test $? 1 "Route removed in default VRF when source address deleted" 2015 2016 $IP ro ls vrf red | grep -q 172.16.106.0/24 2017 log_test $? 0 "Route in VRF is not removed by address delete" 2018 2019 # removing address from device in default vrf should remove route from 2020 # the default vrf even when route was inserted with a table ID of 0. 2021 echo " Table ID 0" 2022 2023 $IP addr del dev dummy1 172.16.104.13/24 2024 $IP ro ls | grep -q 172.16.107.0/24 2025 log_test $? 1 "Route removed in default VRF when source address deleted" 2026 2027 $IP li del dummy1 2028 $IP li del dummy2 2029 cleanup 2030} 2031 2032ipv6_del_addr_test() 2033{ 2034 echo 2035 echo "IPv6 delete address route tests" 2036 2037 setup 2038 2039 set -e 2040 for i in $(seq 6); do 2041 $IP li add dummy${i} up type dummy 2042 done 2043 2044 $IP li add red up type vrf table 1111 2045 $IP ro add vrf red unreachable default 2046 for i in $(seq 4 6); do 2047 $IP li set dummy${i} vrf red 2048 done 2049 2050 $IP addr add dev dummy1 fe80::1/128 2051 $IP addr add dev dummy1 2001:db8:101::1/64 2052 $IP addr add dev dummy1 2001:db8:101::10/64 2053 $IP addr add dev dummy1 2001:db8:101::11/64 2054 $IP addr add dev dummy1 2001:db8:101::12/64 2055 $IP addr add dev dummy1 2001:db8:101::13/64 2056 $IP addr add dev dummy1 2001:db8:101::14/64 2057 $IP addr add dev dummy1 2001:db8:101::15/64 2058 $IP addr add dev dummy2 fe80::1/128 2059 $IP addr add dev dummy2 2001:db8:101::1/64 2060 $IP addr add dev dummy2 2001:db8:101::11/64 2061 $IP addr add dev dummy3 fe80::1/128 2062 2063 $IP addr add dev dummy4 2001:db8:101::1/64 2064 $IP addr add dev dummy4 2001:db8:101::10/64 2065 $IP addr add dev dummy4 2001:db8:101::11/64 2066 $IP addr add dev dummy4 2001:db8:101::12/64 2067 $IP addr add dev dummy4 2001:db8:101::13/64 2068 $IP addr add dev dummy4 2001:db8:101::14/64 2069 $IP addr add dev dummy5 2001:db8:101::1/64 2070 $IP addr add dev dummy5 2001:db8:101::11/64 2071 2072 # Single device using src address 2073 $IP route add 2001:db8:110::/64 dev dummy3 src 2001:db8:101::10 2074 # Two devices with the same source address 2075 $IP route add 2001:db8:111::/64 dev dummy3 src 2001:db8:101::11 2076 # VRF with single device using src address 2077 $IP route add vrf red 2001:db8:110::/64 dev dummy6 src 2001:db8:101::10 2078 # VRF with two devices using src address 2079 $IP route add vrf red 2001:db8:111::/64 dev dummy6 src 2001:db8:101::11 2080 # src address and nexthop dev in same VRF 2081 $IP route add 2001:db8:112::/64 dev dummy3 src 2001:db8:101::12 2082 $IP route add vrf red 2001:db8:112::/64 dev dummy6 src 2001:db8:101::12 2083 # src address and nexthop device in different VRF 2084 $IP route add 2001:db8:113::/64 dev lo src 2001:db8:101::13 2085 $IP route add vrf red 2001:db8:113::/64 dev lo src 2001:db8:101::13 2086 # table ID 0 2087 $IP route add table 0 2001:db8:115::/64 via 2001:db8:101::2 src 2001:db8:101::15 2088 # Link local source route 2089 $IP route add 2001:db8:116::/64 dev dummy2 src fe80::1 2090 $IP route add 2001:db8:117::/64 dev dummy3 src fe80::1 2091 set +e 2092 2093 echo " Single device using src address" 2094 2095 $IP addr del dev dummy1 2001:db8:101::10/64 2096 $IP -6 route show | grep -q "src 2001:db8:101::10 " 2097 log_test $? 1 "Prefsrc removed when src address removed on other device" 2098 2099 echo " Two devices with the same source address" 2100 2101 $IP addr del dev dummy1 2001:db8:101::11/64 2102 $IP -6 route show | grep -q "src 2001:db8:101::11 " 2103 log_test $? 0 "Prefsrc not removed when src address exist on other device" 2104 2105 $IP addr del dev dummy2 2001:db8:101::11/64 2106 $IP -6 route show | grep -q "src 2001:db8:101::11 " 2107 log_test $? 1 "Prefsrc removed when src address removed on all devices" 2108 2109 echo " VRF with single device using src address" 2110 2111 $IP addr del dev dummy4 2001:db8:101::10/64 2112 $IP -6 route show vrf red | grep -q "src 2001:db8:101::10 " 2113 log_test $? 1 "Prefsrc removed when src address removed on other device" 2114 2115 echo " VRF with two devices using src address" 2116 2117 $IP addr del dev dummy4 2001:db8:101::11/64 2118 $IP -6 route show vrf red | grep -q "src 2001:db8:101::11 " 2119 log_test $? 0 "Prefsrc not removed when src address exist on other device" 2120 2121 $IP addr del dev dummy5 2001:db8:101::11/64 2122 $IP -6 route show vrf red | grep -q "src 2001:db8:101::11 " 2123 log_test $? 1 "Prefsrc removed when src address removed on all devices" 2124 2125 echo " src address and nexthop dev in same VRF" 2126 2127 $IP addr del dev dummy4 2001:db8:101::12/64 2128 $IP -6 route show vrf red | grep -q "src 2001:db8:101::12 " 2129 log_test $? 1 "Prefsrc removed from VRF when source address deleted" 2130 $IP -6 route show | grep -q " src 2001:db8:101::12 " 2131 log_test $? 0 "Prefsrc in default VRF not removed" 2132 2133 $IP addr add dev dummy4 2001:db8:101::12/64 2134 $IP route replace vrf red 2001:db8:112::/64 dev dummy6 src 2001:db8:101::12 2135 $IP addr del dev dummy1 2001:db8:101::12/64 2136 $IP -6 route show vrf red | grep -q "src 2001:db8:101::12 " 2137 log_test $? 0 "Prefsrc not removed from VRF when source address exist" 2138 $IP -6 route show | grep -q " src 2001:db8:101::12 " 2139 log_test $? 1 "Prefsrc in default VRF removed" 2140 2141 echo " src address and nexthop device in different VRF" 2142 2143 $IP addr del dev dummy4 2001:db8:101::13/64 2144 $IP -6 route show vrf red | grep -q "src 2001:db8:101::13 " 2145 log_test $? 0 "Prefsrc not removed from VRF when nexthop dev in diff VRF" 2146 $IP -6 route show | grep -q "src 2001:db8:101::13 " 2147 log_test $? 0 "Prefsrc not removed in default VRF" 2148 2149 $IP addr add dev dummy4 2001:db8:101::13/64 2150 $IP addr del dev dummy1 2001:db8:101::13/64 2151 $IP -6 route show vrf red | grep -q "src 2001:db8:101::13 " 2152 log_test $? 1 "Prefsrc removed from VRF when nexthop dev in diff VRF" 2153 $IP -6 route show | grep -q "src 2001:db8:101::13 " 2154 log_test $? 1 "Prefsrc removed in default VRF" 2155 2156 echo " Table ID 0" 2157 2158 $IP addr del dev dummy1 2001:db8:101::15/64 2159 $IP -6 route show | grep -q "src 2001:db8:101::15" 2160 log_test $? 1 "Prefsrc removed from default VRF when source address deleted" 2161 2162 echo " Link local source route" 2163 $IP addr del dev dummy1 fe80::1/128 2164 $IP -6 route show | grep -q "2001:db8:116::/64 dev dummy2 src fe80::1" 2165 log_test $? 0 "Prefsrc not removed when delete ll addr from other dev" 2166 $IP addr del dev dummy2 fe80::1/128 2167 $IP -6 route show | grep -q "2001:db8:116::/64 dev dummy2 src fe80::1" 2168 log_test $? 1 "Prefsrc removed when delete ll addr" 2169 $IP -6 route show | grep -q "2001:db8:117::/64 dev dummy3 src fe80::1" 2170 log_test $? 0 "Prefsrc not removed when delete ll addr from other dev" 2171 $IP addr add dev dummy1 fe80::1/128 2172 $IP addr del dev dummy3 fe80::1/128 2173 $IP -6 route show | grep -q "2001:db8:117::/64 dev dummy3 src fe80::1" 2174 log_test $? 1 "Prefsrc removed even ll addr still exist on other dev" 2175 2176 for i in $(seq 6); do 2177 $IP li del dummy${i} 2178 done 2179 cleanup 2180} 2181 2182ipv4_route_v6_gw_test() 2183{ 2184 local rc 2185 2186 echo 2187 echo "IPv4 route with IPv6 gateway tests" 2188 2189 route_setup 2190 sleep 2 2191 2192 # 2193 # single path route 2194 # 2195 run_cmd "$IP ro add 172.16.104.0/24 via inet6 2001:db8:101::2" 2196 rc=$? 2197 log_test $rc 0 "Single path route with IPv6 gateway" 2198 if [ $rc -eq 0 ]; then 2199 check_route "172.16.104.0/24 via inet6 2001:db8:101::2 dev veth1" 2200 fi 2201 2202 run_cmd "ip netns exec $ns1 ping -w1 -c1 172.16.104.1" 2203 log_test $rc 0 "Single path route with IPv6 gateway - ping" 2204 2205 run_cmd "$IP ro del 172.16.104.0/24 via inet6 2001:db8:101::2" 2206 rc=$? 2207 log_test $rc 0 "Single path route delete" 2208 if [ $rc -eq 0 ]; then 2209 check_route "172.16.112.0/24" 2210 fi 2211 2212 # 2213 # multipath - v6 then v4 2214 # 2215 run_cmd "$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" 2216 rc=$? 2217 log_test $rc 0 "Multipath route add - v6 nexthop then v4" 2218 if [ $rc -eq 0 ]; then 2219 check_route "172.16.104.0/24 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1 nexthop via 172.16.103.2 dev veth3 weight 1" 2220 fi 2221 2222 run_cmd "$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" 2223 log_test $? 2 " Multipath route delete - nexthops in wrong order" 2224 2225 run_cmd "$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" 2226 log_test $? 0 " Multipath route delete exact match" 2227 2228 # 2229 # multipath - v4 then v6 2230 # 2231 run_cmd "$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" 2232 rc=$? 2233 log_test $rc 0 "Multipath route add - v4 nexthop then v6" 2234 if [ $rc -eq 0 ]; then 2235 check_route "172.16.104.0/24 nexthop via 172.16.103.2 dev veth3 weight 1 nexthop via inet6 2001:db8:101::2 dev veth1 weight 1" 2236 fi 2237 2238 run_cmd "$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" 2239 log_test $? 2 " Multipath route delete - nexthops in wrong order" 2240 2241 run_cmd "$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" 2242 log_test $? 0 " Multipath route delete exact match" 2243 2244 route_cleanup 2245} 2246 2247socat_check() 2248{ 2249 if [ ! -x "$(command -v socat)" ]; then 2250 echo "socat command not found. Skipping test" 2251 return 1 2252 fi 2253 2254 return 0 2255} 2256 2257iptables_check() 2258{ 2259 iptables -t mangle -L OUTPUT &> /dev/null 2260 if [ $? -ne 0 ]; then 2261 echo "iptables configuration not supported. Skipping test" 2262 return 1 2263 fi 2264 2265 return 0 2266} 2267 2268ip6tables_check() 2269{ 2270 ip6tables -t mangle -L OUTPUT &> /dev/null 2271 if [ $? -ne 0 ]; then 2272 echo "ip6tables configuration not supported. Skipping test" 2273 return 1 2274 fi 2275 2276 return 0 2277} 2278 2279ipv4_mangle_test() 2280{ 2281 local rc 2282 2283 echo 2284 echo "IPv4 mangling tests" 2285 2286 socat_check || return 1 2287 iptables_check || return 1 2288 2289 route_setup 2290 sleep 2 2291 2292 local tmp_file=$(mktemp) 2293 ip netns exec $ns2 socat UDP4-LISTEN:54321,fork $tmp_file & 2294 2295 # Add a FIB rule and a route that will direct our connection to the 2296 # listening server. 2297 $IP rule add pref 100 ipproto udp sport 12345 dport 54321 table 123 2298 $IP route add table 123 172.16.101.0/24 dev veth1 2299 2300 # Add an unreachable route to the main table that will block our 2301 # connection in case the FIB rule is not hit. 2302 $IP route add unreachable 172.16.101.2/32 2303 2304 run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345" 2305 log_test $? 0 " Connection with correct parameters" 2306 2307 run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=11111" 2308 log_test $? 1 " Connection with incorrect parameters" 2309 2310 # Add a mangling rule and make sure connection is still successful. 2311 $NS_EXEC iptables -t mangle -A OUTPUT -j MARK --set-mark 1 2312 2313 run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345" 2314 log_test $? 0 " Connection with correct parameters - mangling" 2315 2316 # Delete the mangling rule and make sure connection is still 2317 # successful. 2318 $NS_EXEC iptables -t mangle -D OUTPUT -j MARK --set-mark 1 2319 2320 run_cmd "echo a | $NS_EXEC socat STDIN UDP4:172.16.101.2:54321,sourceport=12345" 2321 log_test $? 0 " Connection with correct parameters - no mangling" 2322 2323 # Verify connections were indeed successful on server side. 2324 [[ $(cat $tmp_file | wc -l) -eq 3 ]] 2325 log_test $? 0 " Connection check - server side" 2326 2327 $IP route del unreachable 172.16.101.2/32 2328 $IP route del table 123 172.16.101.0/24 dev veth1 2329 $IP rule del pref 100 2330 2331 { kill %% && wait %%; } 2>/dev/null 2332 rm $tmp_file 2333 2334 route_cleanup 2335} 2336 2337ipv6_mangle_test() 2338{ 2339 local rc 2340 2341 echo 2342 echo "IPv6 mangling tests" 2343 2344 socat_check || return 1 2345 ip6tables_check || return 1 2346 2347 route_setup 2348 sleep 2 2349 2350 local tmp_file=$(mktemp) 2351 ip netns exec $ns2 socat UDP6-LISTEN:54321,fork $tmp_file & 2352 2353 # Add a FIB rule and a route that will direct our connection to the 2354 # listening server. 2355 $IP -6 rule add pref 100 ipproto udp sport 12345 dport 54321 table 123 2356 $IP -6 route add table 123 2001:db8:101::/64 dev veth1 2357 2358 # Add an unreachable route to the main table that will block our 2359 # connection in case the FIB rule is not hit. 2360 $IP -6 route add unreachable 2001:db8:101::2/128 2361 2362 run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345" 2363 log_test $? 0 " Connection with correct parameters" 2364 2365 run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=11111" 2366 log_test $? 1 " Connection with incorrect parameters" 2367 2368 # Add a mangling rule and make sure connection is still successful. 2369 $NS_EXEC ip6tables -t mangle -A OUTPUT -j MARK --set-mark 1 2370 2371 run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345" 2372 log_test $? 0 " Connection with correct parameters - mangling" 2373 2374 # Delete the mangling rule and make sure connection is still 2375 # successful. 2376 $NS_EXEC ip6tables -t mangle -D OUTPUT -j MARK --set-mark 1 2377 2378 run_cmd "echo a | $NS_EXEC socat STDIN UDP6:[2001:db8:101::2]:54321,sourceport=12345" 2379 log_test $? 0 " Connection with correct parameters - no mangling" 2380 2381 # Verify connections were indeed successful on server side. 2382 [[ $(cat $tmp_file | wc -l) -eq 3 ]] 2383 log_test $? 0 " Connection check - server side" 2384 2385 $IP -6 route del unreachable 2001:db8:101::2/128 2386 $IP -6 route del table 123 2001:db8:101::/64 dev veth1 2387 $IP -6 rule del pref 100 2388 2389 { kill %% && wait %%; } 2>/dev/null 2390 rm $tmp_file 2391 2392 route_cleanup 2393} 2394 2395ip_neigh_get_check() 2396{ 2397 ip neigh help 2>&1 | grep -q 'ip neigh get' 2398 if [ $? -ne 0 ]; then 2399 echo "iproute2 command does not support neigh get. Skipping test" 2400 return 1 2401 fi 2402 2403 return 0 2404} 2405 2406ipv4_bcast_neigh_test() 2407{ 2408 local rc 2409 2410 echo 2411 echo "IPv4 broadcast neighbour tests" 2412 2413 ip_neigh_get_check || return 1 2414 2415 setup 2416 2417 set -e 2418 run_cmd "$IP neigh add 192.0.2.111 lladdr 00:11:22:33:44:55 nud perm dev dummy0" 2419 run_cmd "$IP neigh add 192.0.2.255 lladdr 00:11:22:33:44:55 nud perm dev dummy0" 2420 2421 run_cmd "$IP neigh get 192.0.2.111 dev dummy0" 2422 run_cmd "$IP neigh get 192.0.2.255 dev dummy0" 2423 2424 run_cmd "$IP address add 192.0.2.1/24 broadcast 192.0.2.111 dev dummy0" 2425 2426 run_cmd "$IP neigh add 203.0.113.111 nud failed dev dummy0" 2427 run_cmd "$IP neigh add 203.0.113.255 nud failed dev dummy0" 2428 2429 run_cmd "$IP neigh get 203.0.113.111 dev dummy0" 2430 run_cmd "$IP neigh get 203.0.113.255 dev dummy0" 2431 2432 run_cmd "$IP address add 203.0.113.1/24 broadcast 203.0.113.111 dev dummy0" 2433 set +e 2434 2435 run_cmd "$IP neigh get 192.0.2.111 dev dummy0" 2436 log_test $? 0 "Resolved neighbour for broadcast address" 2437 2438 run_cmd "$IP neigh get 192.0.2.255 dev dummy0" 2439 log_test $? 0 "Resolved neighbour for network broadcast address" 2440 2441 run_cmd "$IP neigh get 203.0.113.111 dev dummy0" 2442 log_test $? 2 "Unresolved neighbour for broadcast address" 2443 2444 run_cmd "$IP neigh get 203.0.113.255 dev dummy0" 2445 log_test $? 2 "Unresolved neighbour for network broadcast address" 2446 2447 cleanup 2448} 2449 2450mpath_dep_check() 2451{ 2452 if [ ! -x "$(command -v mausezahn)" ]; then 2453 echo "mausezahn command not found. Skipping test" 2454 return 1 2455 fi 2456 2457 if [ ! -x "$(command -v jq)" ]; then 2458 echo "jq command not found. Skipping test" 2459 return 1 2460 fi 2461 2462 if [ ! -x "$(command -v bc)" ]; then 2463 echo "bc command not found. Skipping test" 2464 return 1 2465 fi 2466 2467 if [ ! -x "$(command -v perf)" ]; then 2468 echo "perf command not found. Skipping test" 2469 return 1 2470 fi 2471 2472 perf list fib:* | grep -q fib_table_lookup 2473 if [ $? -ne 0 ]; then 2474 echo "IPv4 FIB tracepoint not found. Skipping test" 2475 return 1 2476 fi 2477 2478 perf list fib6:* | grep -q fib6_table_lookup 2479 if [ $? -ne 0 ]; then 2480 echo "IPv6 FIB tracepoint not found. Skipping test" 2481 return 1 2482 fi 2483 2484 return 0 2485} 2486 2487link_stats_get() 2488{ 2489 local ns=$1; shift 2490 local dev=$1; shift 2491 local dir=$1; shift 2492 local stat=$1; shift 2493 2494 ip -n $ns -j -s link show dev $dev \ 2495 | jq '.[]["stats64"]["'$dir'"]["'$stat'"]' 2496} 2497 2498list_rcv_eval() 2499{ 2500 local file=$1; shift 2501 local expected=$1; shift 2502 2503 local count=$(tail -n 1 $file | jq '.["counter-value"] | tonumber | floor') 2504 local ratio=$(echo "scale=2; $count / $expected" | bc -l) 2505 local res=$(echo "$ratio >= 0.95" | bc) 2506 [[ $res -eq 1 ]] 2507 log_test $? 0 "Multipath route hit ratio ($ratio)" 2508} 2509 2510ipv4_mpath_list_test() 2511{ 2512 echo 2513 echo "IPv4 multipath list receive tests" 2514 2515 mpath_dep_check || return 1 2516 2517 route_setup 2518 2519 set -e 2520 run_cmd "ip netns exec $ns1 ethtool -K veth1 tcp-segmentation-offload off" 2521 2522 run_cmd "ip netns exec $ns2 bash -c \"echo 20000 > /sys/class/net/veth2/gro_flush_timeout\"" 2523 run_cmd "ip netns exec $ns2 bash -c \"echo 1 > /sys/class/net/veth2/napi_defer_hard_irqs\"" 2524 run_cmd "ip netns exec $ns2 ethtool -K veth2 generic-receive-offload on" 2525 run_cmd "ip -n $ns2 link add name nh1 up type dummy" 2526 run_cmd "ip -n $ns2 link add name nh2 up type dummy" 2527 run_cmd "ip -n $ns2 address add 172.16.201.1/24 dev nh1" 2528 run_cmd "ip -n $ns2 address add 172.16.202.1/24 dev nh2" 2529 run_cmd "ip -n $ns2 neigh add 172.16.201.2 lladdr 00:11:22:33:44:55 nud perm dev nh1" 2530 run_cmd "ip -n $ns2 neigh add 172.16.202.2 lladdr 00:aa:bb:cc:dd:ee nud perm dev nh2" 2531 run_cmd "ip -n $ns2 route add 203.0.113.0/24 2532 nexthop via 172.16.201.2 nexthop via 172.16.202.2" 2533 run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.fib_multipath_hash_policy=1" 2534 run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.conf.veth2.rp_filter=0" 2535 run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.conf.all.rp_filter=0" 2536 run_cmd "ip netns exec $ns2 sysctl -qw net.ipv4.conf.default.rp_filter=0" 2537 set +e 2538 2539 local dmac=$(ip -n $ns2 -j link show dev veth2 | jq -r '.[]["address"]') 2540 local tmp_file=$(mktemp) 2541 local cmd="ip netns exec $ns1 mausezahn veth1 -a own -b $dmac 2542 -A 172.16.101.1 -B 203.0.113.1 -t udp 'sp=12345,dp=0-65535' -q" 2543 2544 # Packets forwarded in a list using a multipath route must not reuse a 2545 # cached result so that a flow always hits the same nexthop. In other 2546 # words, the FIB lookup tracepoint needs to be triggered for every 2547 # packet. 2548 local t0_rx_pkts=$(link_stats_get $ns2 veth2 rx packets) 2549 run_cmd "perf stat -a -e fib:fib_table_lookup --filter 'err == 0' -j -o $tmp_file -- $cmd" 2550 local t1_rx_pkts=$(link_stats_get $ns2 veth2 rx packets) 2551 local diff=$(echo $t1_rx_pkts - $t0_rx_pkts | bc -l) 2552 list_rcv_eval $tmp_file $diff 2553 2554 rm $tmp_file 2555 route_cleanup 2556} 2557 2558ipv6_mpath_list_test() 2559{ 2560 echo 2561 echo "IPv6 multipath list receive tests" 2562 2563 mpath_dep_check || return 1 2564 2565 route_setup 2566 2567 set -e 2568 run_cmd "ip netns exec $ns1 ethtool -K veth1 tcp-segmentation-offload off" 2569 2570 run_cmd "ip netns exec $ns2 bash -c \"echo 20000 > /sys/class/net/veth2/gro_flush_timeout\"" 2571 run_cmd "ip netns exec $ns2 bash -c \"echo 1 > /sys/class/net/veth2/napi_defer_hard_irqs\"" 2572 run_cmd "ip netns exec $ns2 ethtool -K veth2 generic-receive-offload on" 2573 run_cmd "ip -n $ns2 link add name nh1 up type dummy" 2574 run_cmd "ip -n $ns2 link add name nh2 up type dummy" 2575 run_cmd "ip -n $ns2 -6 address add 2001:db8:201::1/64 dev nh1" 2576 run_cmd "ip -n $ns2 -6 address add 2001:db8:202::1/64 dev nh2" 2577 run_cmd "ip -n $ns2 -6 neigh add 2001:db8:201::2 lladdr 00:11:22:33:44:55 nud perm dev nh1" 2578 run_cmd "ip -n $ns2 -6 neigh add 2001:db8:202::2 lladdr 00:aa:bb:cc:dd:ee nud perm dev nh2" 2579 run_cmd "ip -n $ns2 -6 route add 2001:db8:301::/64 2580 nexthop via 2001:db8:201::2 nexthop via 2001:db8:202::2" 2581 run_cmd "ip netns exec $ns2 sysctl -qw net.ipv6.fib_multipath_hash_policy=1" 2582 set +e 2583 2584 local dmac=$(ip -n $ns2 -j link show dev veth2 | jq -r '.[]["address"]') 2585 local tmp_file=$(mktemp) 2586 local cmd="ip netns exec $ns1 mausezahn -6 veth1 -a own -b $dmac 2587 -A 2001:db8:101::1 -B 2001:db8:301::1 -t udp 'sp=12345,dp=0-65535' -q" 2588 2589 # Packets forwarded in a list using a multipath route must not reuse a 2590 # cached result so that a flow always hits the same nexthop. In other 2591 # words, the FIB lookup tracepoint needs to be triggered for every 2592 # packet. 2593 local t0_rx_pkts=$(link_stats_get $ns2 veth2 rx packets) 2594 run_cmd "perf stat -a -e fib6:fib6_table_lookup --filter 'err == 0' -j -o $tmp_file -- $cmd" 2595 local t1_rx_pkts=$(link_stats_get $ns2 veth2 rx packets) 2596 local diff=$(echo $t1_rx_pkts - $t0_rx_pkts | bc -l) 2597 list_rcv_eval $tmp_file $diff 2598 2599 rm $tmp_file 2600 route_cleanup 2601} 2602 2603################################################################################ 2604# usage 2605 2606usage() 2607{ 2608 cat <<EOF 2609usage: ${0##*/} OPTS 2610 2611 -t <test> Test(s) to run (default: all) 2612 (options: $TESTS) 2613 -p Pause on fail 2614 -P Pause after each test before cleanup 2615 -v verbose mode (show commands and output) 2616EOF 2617} 2618 2619################################################################################ 2620# main 2621 2622trap cleanup EXIT 2623 2624while getopts :t:pPhv o 2625do 2626 case $o in 2627 t) TESTS=$OPTARG;; 2628 p) PAUSE_ON_FAIL=yes;; 2629 P) PAUSE=yes;; 2630 v) VERBOSE=$(($VERBOSE + 1));; 2631 h) usage; exit 0;; 2632 *) usage; exit 1;; 2633 esac 2634done 2635 2636PEER_CMD="ip netns exec ${PEER_NS}" 2637 2638# make sure we don't pause twice 2639[ "${PAUSE}" = "yes" ] && PAUSE_ON_FAIL=no 2640 2641if [ "$(id -u)" -ne 0 ];then 2642 echo "SKIP: Need root privileges" 2643 exit $ksft_skip; 2644fi 2645 2646if [ ! -x "$(command -v ip)" ]; then 2647 echo "SKIP: Could not run test without ip tool" 2648 exit $ksft_skip 2649fi 2650 2651ip route help 2>&1 | grep -q fibmatch 2652if [ $? -ne 0 ]; then 2653 echo "SKIP: iproute2 too old, missing fibmatch" 2654 exit $ksft_skip 2655fi 2656 2657# start clean 2658cleanup &> /dev/null 2659 2660for t in $TESTS 2661do 2662 case $t in 2663 fib_unreg_test|unregister) fib_unreg_test;; 2664 fib_down_test|down) fib_down_test;; 2665 fib_carrier_test|carrier) fib_carrier_test;; 2666 fib_rp_filter_test|rp_filter) fib_rp_filter_test;; 2667 fib_nexthop_test|nexthop) fib_nexthop_test;; 2668 fib_notify_test|ipv4_notify) fib_notify_test;; 2669 fib6_notify_test|ipv6_notify) fib6_notify_test;; 2670 fib_suppress_test|suppress) fib_suppress_test;; 2671 ipv6_route_test|ipv6_rt) ipv6_route_test;; 2672 ipv4_route_test|ipv4_rt) ipv4_route_test;; 2673 ipv6_addr_metric) ipv6_addr_metric_test;; 2674 ipv4_addr_metric) ipv4_addr_metric_test;; 2675 ipv4_del_addr) ipv4_del_addr_test;; 2676 ipv6_del_addr) ipv6_del_addr_test;; 2677 ipv6_route_metrics) ipv6_route_metrics_test;; 2678 ipv4_route_metrics) ipv4_route_metrics_test;; 2679 ipv4_route_v6_gw) ipv4_route_v6_gw_test;; 2680 ipv4_mangle) ipv4_mangle_test;; 2681 ipv6_mangle) ipv6_mangle_test;; 2682 ipv4_bcast_neigh) ipv4_bcast_neigh_test;; 2683 fib6_gc_test|ipv6_gc) fib6_gc_test;; 2684 ipv4_mpath_list) ipv4_mpath_list_test;; 2685 ipv6_mpath_list) ipv6_mpath_list_test;; 2686 2687 help) echo "Test names: $TESTS"; exit 0;; 2688 esac 2689done 2690 2691if [ "$TESTS" != "none" ]; then 2692 printf "\nTests passed: %3d\n" ${nsuccess} 2693 printf "Tests failed: %3d\n" ${nfail} 2694fi 2695 2696exit $ret 2697