tools/testing/selftests/net/fib_tests.sh

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