tools/testing/selftests/net/forwarding/vxlan_asymmetric_ipv6.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # +--------------------------------+            +-----------------------------+
   5 # |                         vrf-h1 |            |                      vrf-h2 |
   6 # |    + $h1                       |            | + $h2                       |
   7 # |    | 2001:db8:1::1/64          |            | | 2001:db8:2::1/64          |
   8 # |    | default via 2001:db8:1::3 |            | | default via 2001:db8:2::3 |
   9 # +----|---------------------------+            +-|---------------------------+
  10 #      |                                          |
  11 # +----|------------------------------------------|---------------------------+
  12 # | SW |                                          |                           |
  13 # | +--|------------------------------------------|-------------------------+ |
  14 # | |  + $swp1                         br1        + $swp2                   | |
  15 # | |     vid 10 pvid untagged                       vid 20 pvid untagged   | |
  16 # | |                                                                       | |
  17 # | |  + vx10                                     + vx20                    | |
  18 # | |    local 2001:db8:3::1                        local 2001:db8:3::1     | |
  19 # | |    remote 2001:db8:3::2                       remote 2001:db8:3::2    | |
  20 # | |    id 1000                                    id 2000                 | |
  21 # | |    dstport 4789                               dstport 4789            | |
  22 # | |    vid 10 pvid untagged                       vid 20 pvid untagged    | |
  23 # | |                                                                       | |
  24 # | +-----------------------------------+-----------------------------------+ |
  25 # |                                     |                                     |
  26 # | +-----------------------------------|-----------------------------------+ |
  27 # | |                                   |                                   | |
  28 # | |  +--------------------------------+--------------------------------+  | |
  29 # | |  |                                                                 |  | |
  30 # | |  + vlan10                                                   vlan20 +  | |
  31 # | |  | 2001:db8:1::2/64                               2001:db8:2::2/64 |  | |
  32 # | |  |                                                                 |  | |
  33 # | |  + vlan10-v (macvlan)                           vlan20-v (macvlan) +  | |
  34 # | |    2001:db8:1::3/64                               2001:db8:2::3/64    | |
  35 # | |    00:00:5e:00:01:01                             00:00:5e:00:01:01    | |
  36 # | |                               vrf-green                               | |
  37 # | +-----------------------------------------------------------------------+ |
  38 # |                                                                           |
  39 # |    + $rp1                                       +lo                       |
  40 # |    | 2001:db8:4::1/64                            2001:db8:3::1/128        |
  41 # +----|----------------------------------------------------------------------+
  42 #      |
  43 # +----|--------------------------------------------------------+
  44 # |    |                            vrf-spine                   |
  45 # |    + $rp2                                                   |
  46 # |      2001:db8:4::2/64                                       |
  47 # |                                                             |   (maybe) HW
  48 # =============================================================================
  49 # |                                                             |  (likely) SW
  50 # |                                                             |
  51 # |    + v1 (veth)                                              |
  52 # |    | 2001:db8:5::2/64                                       |
  53 # +----|--------------------------------------------------------+
  54 #      |
  55 # +----|----------------------------------------------------------------------+
  56 # |    + v2 (veth)                                  +lo           NS1 (netns) |
  57 # |      2001:db8:5::1/64                            2001:db8:3::2/128        |
  58 # |                                                                           |
  59 # | +-----------------------------------------------------------------------+ |
  60 # | |                               vrf-green                               | |
  61 # | |  + vlan10-v (macvlan)                           vlan20-v (macvlan) +  | |
  62 # | |  | 2001:db8:1::3/64                               2001:db8:2::3/64 |  | |
  63 # | |  | 00:00:5e:00:01:01                             00:00:5e:00:01:01 |  | |
  64 # | |  |                                                                 |  | |
  65 # | |  + vlan10                                                   vlan20 +  | |
  66 # | |  | 2001:db8:1::3/64                               2001:db8:2::3/64 |  | |
  67 # | |  |                                                                 |  | |
  68 # | |  +--------------------------------+--------------------------------+  | |
  69 # | |                                   |                                   | |
  70 # | +-----------------------------------|-----------------------------------+ |
  71 # |                                     |                                     |
  72 # | +-----------------------------------+-----------------------------------+ |
  73 # | |                                                                       | |
  74 # | |  + vx10                                     + vx20                    | |
  75 # | |    local 2001:db8:3::2                        local 2001:db8:3::2     | |
  76 # | |    remote 2001:db8:3::1                       remote 2001:db8:3::1    | |
  77 # | |    id 1000                                    id 2000                 | |
  78 # | |    dstport 4789                               dstport 4789            | |
  79 # | |    vid 10 pvid untagged                       vid 20 pvid untagged    | |
  80 # | |                                                                       | |
  81 # | |  + w1 (veth)                                + w3 (veth)               | |
  82 # | |  | vid 10 pvid untagged          br1        | vid 20 pvid untagged    | |
  83 # | +--|------------------------------------------|-------------------------+ |
  84 # |    |                                          |                           |
  85 # |    |                                          |                           |
  86 # | +--|----------------------+                +--|-------------------------+ |
  87 # | |  |               vrf-h1 |                |  |                  vrf-h2 | |
  88 # | |  + w2 (veth)            |                |  + w4 (veth)               | |
  89 # | |    2001:db8:1::4/64     |                |    2001:db8:2::4/64        | |
  90 # | |    default via          |                |    default via             | |
  91 # | |    2001:db8:1::3/64     |                |    2001:db8:2::3/64        | |
  92 # | +-------------------------+                +----------------------------+ |
  93 # +---------------------------------------------------------------------------+
  94
  95 ALL_TESTS="
  96         ping_ipv6
  97         arp_decap
  98 "
  99 NUM_NETIFS=6
 100 source lib.sh
 101
 102 require_command $ARPING
 103
 104 hx_create()
 105 {
 106         local vrf_name=$1; shift
 107         local if_name=$1; shift
 108         local ip_addr=$1; shift
 109         local gw_ip=$1; shift
 110
 111         vrf_create $vrf_name
 112         ip link set dev $if_name master $vrf_name
 113         ip link set dev $vrf_name up
 114         ip link set dev $if_name up
 115
 116         ip address add $ip_addr/64 dev $if_name
 117         ip neigh replace $gw_ip lladdr 00:00:5e:00:01:01 nud permanent \
 118                 dev $if_name
 119         ip route add default vrf $vrf_name nexthop via $gw_ip
 120 }
 121 export -f hx_create
 122
 123 hx_destroy()
 124 {
 125         local vrf_name=$1; shift
 126         local if_name=$1; shift
 127         local ip_addr=$1; shift
 128         local gw_ip=$1; shift
 129
 130         ip route del default vrf $vrf_name nexthop via $gw_ip
 131         ip neigh del $gw_ip dev $if_name
 132         ip address del $ip_addr/64 dev $if_name
 133
 134         ip link set dev $if_name down
 135         vrf_destroy $vrf_name
 136 }
 137
 138 h1_create()
 139 {
 140         hx_create "vrf-h1" $h1 2001:db8:1::1 2001:db8:1::3
 141 }
 142
 143 h1_destroy()
 144 {
 145         hx_destroy "vrf-h1" $h1 2001:db8:1::1 2001:db8:1::3
 146 }
 147
 148 h2_create()
 149 {
 150         hx_create "vrf-h2" $h2 2001:db8:2::1 2001:db8:2::3
 151 }
 152
 153 h2_destroy()
 154 {
 155         hx_destroy "vrf-h2" $h2 2001:db8:2::1 2001:db8:2::3
 156 }
 157
 158 switch_create()
 159 {
 160         ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
 161                 mcast_snooping 0
 162         # Make sure the bridge uses the MAC address of the local port and not
 163         # that of the VxLAN's device.
 164         ip link set dev br1 address $(mac_get $swp1)
 165         ip link set dev br1 up
 166
 167         ip link set dev $rp1 up
 168         ip address add dev $rp1 2001:db8:4::1/64
 169         ip route add 2001:db8:3::2/128 nexthop via 2001:db8:4::2
 170
 171         ip link add name vx10 type vxlan id 1000                \
 172                 local 2001:db8:3::1 remote 2001:db8:3::2 dstport 4789   \
 173                 nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
 174         ip link set dev vx10 up
 175
 176         ip link set dev vx10 master br1
 177         bridge vlan add vid 10 dev vx10 pvid untagged
 178
 179         ip link add name vx20 type vxlan id 2000                \
 180                 local 2001:db8:3::1 remote 2001:db8:3::2 dstport 4789   \
 181                 nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
 182         ip link set dev vx20 up
 183
 184         ip link set dev vx20 master br1
 185         bridge vlan add vid 20 dev vx20 pvid untagged
 186
 187         ip link set dev $swp1 master br1
 188         ip link set dev $swp1 up
 189         bridge vlan add vid 10 dev $swp1 pvid untagged
 190
 191         ip link set dev $swp2 master br1
 192         ip link set dev $swp2 up
 193         bridge vlan add vid 20 dev $swp2 pvid untagged
 194
 195         ip address add 2001:db8:3::1/128 dev lo
 196
 197         # Create SVIs
 198         vrf_create "vrf-green"
 199         ip link set dev vrf-green up
 200
 201         ip link add link br1 name vlan10 up master vrf-green type vlan id 10
 202         ip address add 2001:db8:1::2/64 dev vlan10
 203         ip link add link vlan10 name vlan10-v up master vrf-green \
 204                 address 00:00:5e:00:01:01 type macvlan mode private
 205         ip address add 2001:db8:1::3/64 dev vlan10-v
 206
 207         ip link add link br1 name vlan20 up master vrf-green type vlan id 20
 208         ip address add 2001:db8:2::2/64 dev vlan20
 209         ip link add link vlan20 name vlan20-v up master vrf-green \
 210                 address 00:00:5e:00:01:01 type macvlan mode private
 211         ip address add 2001:db8:2::3/64 dev vlan20-v
 212
 213         bridge vlan add vid 10 dev br1 self
 214         bridge vlan add vid 20 dev br1 self
 215
 216         bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
 217         bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
 218
 219 }
 220
 221 switch_destroy()
 222 {
 223         bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 20
 224         bridge fdb del 00:00:5e:00:01:01 dev br1 self local vlan 10
 225
 226         bridge vlan del vid 20 dev br1 self
 227         bridge vlan del vid 10 dev br1 self
 228
 229         ip link del dev vlan20
 230
 231         ip link del dev vlan10
 232
 233         vrf_destroy "vrf-green"
 234
 235         ip address del 2001:db8:3::1/128 dev lo
 236
 237         bridge vlan del vid 20 dev $swp2
 238         ip link set dev $swp2 down
 239         ip link set dev $swp2 nomaster
 240
 241         bridge vlan del vid 10 dev $swp1
 242         ip link set dev $swp1 down
 243         ip link set dev $swp1 nomaster
 244
 245         bridge vlan del vid 20 dev vx20
 246         ip link set dev vx20 nomaster
 247
 248         ip link set dev vx20 down
 249         ip link del dev vx20
 250
 251         bridge vlan del vid 10 dev vx10
 252         ip link set dev vx10 nomaster
 253
 254         ip link set dev vx10 down
 255         ip link del dev vx10
 256
 257         ip route del 2001:db8:3::2 nexthop via 2001:db8:4::2
 258         ip address del dev $rp1 2001:db8:4::1/64
 259         ip link set dev $rp1 down
 260
 261         ip link set dev br1 down
 262         ip link del dev br1
 263 }
 264
 265 spine_create()
 266 {
 267         vrf_create "vrf-spine"
 268         ip link set dev $rp2 master vrf-spine
 269         ip link set dev v1 master vrf-spine
 270         ip link set dev vrf-spine up
 271         ip link set dev $rp2 up
 272         ip link set dev v1 up
 273
 274         ip address add 2001:db8:4::2/64 dev $rp2
 275         ip address add 2001:db8:5::2/64 dev v1
 276
 277         ip route add 2001:db8:3::1/128 vrf vrf-spine nexthop via \
 278                 2001:db8:4::1
 279         ip route add 2001:db8:3::2/128 vrf vrf-spine nexthop via \
 280                 2001:db8:5::1
 281 }
 282
 283 spine_destroy()
 284 {
 285         ip route del 2001:db8:3::2/128 vrf vrf-spine nexthop via \
 286                 2001:db8:5::1
 287         ip route del 2001:db8:3::1/128 vrf vrf-spine nexthop via \
 288                 2001:db8:4::1
 289
 290         ip address del 2001:db8:5::2/64 dev v1
 291         ip address del 2001:db8:4::2/64 dev $rp2
 292
 293         ip link set dev v1 down
 294         ip link set dev $rp2 down
 295         vrf_destroy "vrf-spine"
 296 }
 297
 298 ns_h1_create()
 299 {
 300         hx_create "vrf-h1" w2 2001:db8:1::4 2001:db8:1::3
 301 }
 302 export -f ns_h1_create
 303
 304 ns_h2_create()
 305 {
 306         hx_create "vrf-h2" w4 2001:db8:2::4 2001:db8:2::3
 307 }
 308 export -f ns_h2_create
 309
 310 ns_switch_create()
 311 {
 312         ip link add name br1 type bridge vlan_filtering 1 vlan_default_pvid 0 \
 313                 mcast_snooping 0
 314         ip link set dev br1 up
 315
 316         ip link set dev v2 up
 317         ip address add dev v2 2001:db8:5::1/64
 318         ip route add 2001:db8:3::1 nexthop via 2001:db8:5::2
 319
 320         ip link add name vx10 type vxlan id 1000                \
 321                 local 2001:db8:3::2 remote 2001:db8:3::1 dstport 4789   \
 322                 nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
 323         ip link set dev vx10 up
 324
 325         ip link set dev vx10 master br1
 326         bridge vlan add vid 10 dev vx10 pvid untagged
 327
 328         ip link add name vx20 type vxlan id 2000                \
 329                 local 2001:db8:3::2 remote 2001:db8:3::1 dstport 4789   \
 330                 nolearning udp6zerocsumrx udp6zerocsumtx tos inherit ttl 100
 331         ip link set dev vx20 up
 332
 333         ip link set dev vx20 master br1
 334         bridge vlan add vid 20 dev vx20 pvid untagged
 335
 336         ip link set dev w1 master br1
 337         ip link set dev w1 up
 338         bridge vlan add vid 10 dev w1 pvid untagged
 339
 340         ip link set dev w3 master br1
 341         ip link set dev w3 up
 342         bridge vlan add vid 20 dev w3 pvid untagged
 343
 344         ip address add 2001:db8:3::2/128 dev lo
 345
 346         # Create SVIs
 347         vrf_create "vrf-green"
 348         ip link set dev vrf-green up
 349
 350         ip link add link br1 name vlan10 up master vrf-green type vlan id 10
 351         ip address add 2001:db8:1::3/64 dev vlan10
 352         ip link add link vlan10 name vlan10-v up master vrf-green \
 353                 address 00:00:5e:00:01:01 type macvlan mode private
 354         ip address add 2001:db8:1::3/64 dev vlan10-v
 355
 356         ip link add link br1 name vlan20 up master vrf-green type vlan id 20
 357         ip address add 2001:db8:2::3/64 dev vlan20
 358         ip link add link vlan20 name vlan20-v up master vrf-green \
 359                 address 00:00:5e:00:01:01 type macvlan mode private
 360         ip address add 2001:db8:2::3/64 dev vlan20-v
 361
 362         bridge vlan add vid 10 dev br1 self
 363         bridge vlan add vid 20 dev br1 self
 364
 365         bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 10
 366         bridge fdb add 00:00:5e:00:01:01 dev br1 self local vlan 20
 367 }
 368 export -f ns_switch_create
 369
 370 ns_init()
 371 {
 372         ip link add name w1 type veth peer name w2
 373         ip link add name w3 type veth peer name w4
 374
 375         ip link set dev lo up
 376
 377         ns_h1_create
 378         ns_h2_create
 379         ns_switch_create
 380 }
 381 export -f ns_init
 382
 383 ns1_create()
 384 {
 385         ip netns add ns1
 386         ip link set dev v2 netns ns1
 387         in_ns ns1 ns_init
 388 }
 389
 390 ns1_destroy()
 391 {
 392         ip netns exec ns1 ip link set dev v2 netns 1
 393         ip netns del ns1
 394 }
 395
 396 macs_populate()
 397 {
 398         local mac1=$1; shift
 399         local mac2=$1; shift
 400         local ip1=$1; shift
 401         local ip2=$1; shift
 402         local dst=$1; shift
 403
 404         bridge fdb add $mac1 dev vx10 self master extern_learn static \
 405                 dst $dst vlan 10
 406         bridge fdb add $mac2 dev vx20 self master extern_learn static \
 407                 dst $dst vlan 20
 408
 409         ip neigh add $ip1 lladdr $mac1 nud noarp dev vlan10 \
 410                 extern_learn
 411         ip neigh add $ip2 lladdr $mac2 nud noarp dev vlan20 \
 412                 extern_learn
 413 }
 414 export -f macs_populate
 415
 416 macs_initialize()
 417 {
 418         local h1_ns_mac=$(in_ns ns1 mac_get w2)
 419         local h2_ns_mac=$(in_ns ns1 mac_get w4)
 420         local h1_mac=$(mac_get $h1)
 421         local h2_mac=$(mac_get $h2)
 422
 423         macs_populate $h1_ns_mac $h2_ns_mac 2001:db8:1::4 2001:db8:2::4 \
 424                 2001:db8:3::2
 425         in_ns ns1 macs_populate $h1_mac $h2_mac 2001:db8:1::1 2001:db8:2::1 \
 426                 2001:db8:3::1
 427 }
 428
 429 setup_prepare()
 430 {
 431         h1=${NETIFS[p1]}
 432         swp1=${NETIFS[p2]}
 433
 434         swp2=${NETIFS[p3]}
 435         h2=${NETIFS[p4]}
 436
 437         rp1=${NETIFS[p5]}
 438         rp2=${NETIFS[p6]}
 439
 440         vrf_prepare
 441         forwarding_enable
 442
 443         h1_create
 444         h2_create
 445         switch_create
 446
 447         ip link add name v1 type veth peer name v2
 448         spine_create
 449         ns1_create
 450         in_ns ns1 forwarding_enable
 451
 452         macs_initialize
 453 }
 454
 455 cleanup()
 456 {
 457         pre_cleanup
 458
 459         ns1_destroy
 460         spine_destroy
 461         ip link del dev v1
 462
 463         switch_destroy
 464         h2_destroy
 465         h1_destroy
 466
 467         forwarding_restore
 468         vrf_cleanup
 469 }
 470
 471 ping_ipv6()
 472 {
 473         ping6_test $h1 2001:db8:2::1 ": local->local vid 10->vid 20"
 474         ping6_test $h1 2001:db8:1::4 ": local->remote vid 10->vid 10"
 475         ping6_test $h2 2001:db8:2::4 ": local->remote vid 20->vid 20"
 476         ping6_test $h1 2001:db8:2::4 ": local->remote vid 10->vid 20"
 477         ping6_test $h2 2001:db8:1::4 ": local->remote vid 20->vid 10"
 478 }
 479
 480 arp_decap()
 481 {
 482         # Repeat the ping tests, but without populating the neighbours. This
 483         # makes sure we correctly decapsulate ARP packets
 484         log_info "deleting neighbours from vlan interfaces"
 485
 486         ip neigh del 2001:db8:1::4 dev vlan10
 487         ip neigh del 2001:db8:2::4 dev vlan20
 488
 489         ping_ipv6
 490
 491         ip neigh replace 2001:db8:1::4 lladdr $(in_ns ns1 mac_get w2) \
 492                 nud noarp dev vlan10 extern_learn
 493         ip neigh replace 2001:db8:2::4 lladdr $(in_ns ns1 mac_get w4) \
 494                 nud noarp dev vlan20 extern_learn
 495 }
 496
 497 trap cleanup EXIT
 498
 499 setup_prepare
 500 setup_wait
 501
 502 tests_run
 503
 504 exit $EXIT_STATUS