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

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # +--------------------+                               +----------------------+
   5 # | H1 (vrf)           |                               |             H2 (vrf) |
   6 # |    + h1.10         |                               |  + h2.20             |
   7 # |    | 192.0.2.1/28  |                               |  | 192.0.2.2/28      |
   8 # |    |               |                               |  |                   |
   9 # |    + $h1           |                               |  + $h2               |
  10 # |    |               |                               |  |                   |
  11 # +----|---------------+                               +--|-------------------+
  12 #      |                                                  |
  13 # +----|--------------------------------------------------|--------------------+
  14 # | SW |                                                  |                    |
  15 # | +--|-------------------------------+ +----------------|------------------+ |
  16 # | |  + $swp1         BR1 (802.1ad)   | | BR2 (802.1d)   + $swp2            | |
  17 # | |    vid 100 pvid untagged         | |                |                  | |
  18 # | |                                  | |                + $swp2.20         | |
  19 # | |                                  | |                                   | |
  20 # | |  + vx100 (vxlan)                 | |  + vx200 (vxlan)                  | |
  21 # | |    local 192.0.2.17              | |    local 192.0.2.17               | |
  22 # | |    remote 192.0.2.34             | |    remote 192.0.2.50              | |
  23 # | |    id 1000 dstport $VXPORT       | |    id 2000 dstport $VXPORT        | |
  24 # | |    vid 100 pvid untagged         | |                                   | |
  25 # | +--------------------------------- + +-----------------------------------+ |
  26 # |                                                                            |
  27 # |  192.0.2.32/28 via 192.0.2.18                                              |
  28 # |  192.0.2.48/28 via 192.0.2.18                                              |
  29 # |                                                                            |
  30 # |    + $rp1                                                                  |
  31 # |    | 192.0.2.17/28                                                         |
  32 # +----|-----------------------------------------------------------------------+
  33 #      |
  34 # +----|--------------------------------------------------------+
  35 # |    |                                             VRP2 (vrf) |
  36 # |    + $rp2                                                   |
  37 # |      192.0.2.18/28                                          |
  38 # |                                                             |   (maybe) HW
  39 # =============================================================================
  40 # |                                                             |  (likely) SW
  41 # |    + v1 (veth)                             + v3 (veth)      |
  42 # |    | 192.0.2.33/28                         | 192.0.2.49/28  |
  43 # +----|---------------------------------------|----------------+
  44 #      |                                       |
  45 # +----|------------------------------+   +----|------------------------------+
  46 # |    + v2 (veth)        NS1 (netns) |   |    + v4 (veth)        NS2 (netns) |
  47 # |      192.0.2.34/28                |   |      192.0.2.50/28                |
  48 # |                                   |   |                                   |
  49 # |   192.0.2.16/28 via 192.0.2.33    |   |   192.0.2.16/28 via 192.0.2.49    |
  50 # |   192.0.2.50/32 via 192.0.2.33    |   |   192.0.2.34/32 via 192.0.2.49    |
  51 # |                                   |   |                                   |
  52 # | +-------------------------------+ |   | +-------------------------------+ |
  53 # | |                 BR3 (802.1ad) | |   | |                  BR3 (802.1d) | |
  54 # | |  + vx100 (vxlan)              | |   | |  + vx200 (vxlan)              | |
  55 # | |    local 192.0.2.34           | |   | |    local 192.0.2.50           | |
  56 # | |    remote 192.0.2.17          | |   | |    remote 192.0.2.17          | |
  57 # | |    remote 192.0.2.50          | |   | |    remote 192.0.2.34          | |
  58 # | |    id 1000 dstport $VXPORT    | |   | |    id 2000 dstport $VXPORT    | |
  59 # | |    vid 100 pvid untagged      | |   | |                               | |
  60 # | |                               | |   | |  + w1.20                      | |
  61 # | |                               | |   | |  |                            | |
  62 # | |  + w1 (veth)                  | |   | |  + w1 (veth)                  | |
  63 # | |  | vid 100 pvid untagged      | |   | |  |                            | |
  64 # | +--|----------------------------+ |   | +--|----------------------------+ |
  65 # |    |                              |   |    |                              |
  66 # | +--|----------------------------+ |   | +--|----------------------------+ |
  67 # | |  |                  VW2 (vrf) | |   | |  |                  VW2 (vrf) | |
  68 # | |  + w2 (veth)                  | |   | |  + w2 (veth)                  | |
  69 # | |  |                            | |   | |  |                            | |
  70 # | |  |                            | |   | |  |                            | |
  71 # | |  + w2.10                      | |   | |  + w2.20                      | |
  72 # | |    192.0.2.3/28               | |   | |    192.0.2.4/28               | |
  73 # | +-------------------------------+ |   | +-------------------------------+ |
  74 # +-----------------------------------+   +-----------------------------------+
  75
  76 : ${VXPORT:=4789}
  77 export VXPORT
  78
  79 : ${ALL_TESTS:="
  80         ping_ipv4
  81     "}
  82
  83 NUM_NETIFS=6
  84 source lib.sh
  85
  86 h1_create()
  87 {
  88         simple_if_init $h1
  89         tc qdisc add dev $h1 clsact
  90         vlan_create $h1 10 v$h1 192.0.2.1/28
  91 }
  92
  93 h1_destroy()
  94 {
  95         vlan_destroy $h1 10
  96         tc qdisc del dev $h1 clsact
  97         simple_if_fini $h1
  98 }
  99
 100 h2_create()
 101 {
 102         simple_if_init $h2
 103         tc qdisc add dev $h2 clsact
 104         vlan_create $h2 20 v$h2 192.0.2.2/28
 105 }
 106
 107 h2_destroy()
 108 {
 109         vlan_destroy $h2 20
 110         tc qdisc del dev $h2 clsact
 111         simple_if_fini $h2
 112 }
 113
 114 rp1_set_addr()
 115 {
 116         ip address add dev $rp1 192.0.2.17/28
 117
 118         ip route add 192.0.2.32/28 nexthop via 192.0.2.18
 119         ip route add 192.0.2.48/28 nexthop via 192.0.2.18
 120 }
 121
 122 rp1_unset_addr()
 123 {
 124         ip route del 192.0.2.48/28 nexthop via 192.0.2.18
 125         ip route del 192.0.2.32/28 nexthop via 192.0.2.18
 126
 127         ip address del dev $rp1 192.0.2.17/28
 128 }
 129
 130 switch_create()
 131 {
 132         #### BR1 ####
 133         ip link add name br1 type bridge vlan_filtering 1 \
 134                 vlan_protocol 802.1ad vlan_default_pvid 0 mcast_snooping 0
 135         ip link set dev br1 addrgenmode none
 136         # Make sure the bridge uses the MAC address of the local port and not
 137         # that of the VxLAN's device.
 138         ip link set dev br1 address $(mac_get $swp1)
 139         ip link set dev br1 up
 140
 141         #### BR2 ####
 142         ip link add name br2 type bridge vlan_filtering 0 mcast_snooping 0
 143         # Make sure the bridge uses the MAC address of the local port and not
 144         # that of the VxLAN's device.
 145         ip link set dev br2 address $(mac_get $swp2)
 146         ip link set dev br2 up
 147
 148         ip link set dev $rp1 up
 149         rp1_set_addr
 150
 151         #### VX100 ####
 152         ip link add name vx100 type vxlan id 1000 local 192.0.2.17 \
 153                 dstport "$VXPORT" nolearning noudpcsum tos inherit ttl 100
 154         ip link set dev vx100 up
 155
 156         ip link set dev vx100 master br1
 157         bridge vlan add vid 100 dev vx100 pvid untagged
 158
 159         ip link set dev $swp1 master br1
 160         ip link set dev $swp1 up
 161         bridge vlan add vid 100 dev $swp1 pvid untagged
 162
 163         #### VX200 ####
 164         ip link add name vx200 type vxlan id 2000 local 192.0.2.17 \
 165                 dstport "$VXPORT" nolearning noudpcsum tos inherit ttl 100
 166         ip link set dev vx200 up
 167
 168         ip link set dev vx200 master br2
 169
 170         ip link set dev $swp2 up
 171         ip link add name $swp2.20 link $swp2 type vlan id 20
 172         ip link set dev $swp2.20 master br2
 173         ip link set dev $swp2.20 up
 174
 175         bridge fdb append dev vx100 00:00:00:00:00:00 dst 192.0.2.34 self
 176         bridge fdb append dev vx200 00:00:00:00:00:00 dst 192.0.2.50 self
 177 }
 178
 179 switch_destroy()
 180 {
 181         bridge fdb del dev vx200 00:00:00:00:00:00 dst 192.0.2.50 self
 182         bridge fdb del dev vx100 00:00:00:00:00:00 dst 192.0.2.34 self
 183
 184         ip link set dev vx200 nomaster
 185         ip link set dev vx200 down
 186         ip link del dev vx200
 187
 188         ip link del dev $swp2.20
 189         ip link set dev $swp2 down
 190         ip link set dev $swp2 nomaster
 191
 192         bridge vlan del vid 100 dev $swp1
 193         ip link set dev $swp1 down
 194         ip link set dev $swp1 nomaster
 195
 196         ip link set dev vx100 nomaster
 197         ip link set dev vx100 down
 198         ip link del dev vx100
 199
 200         rp1_unset_addr
 201         ip link set dev $rp1 down
 202
 203         ip link set dev br2 down
 204         ip link del dev br2
 205
 206         ip link set dev br1 down
 207         ip link del dev br1
 208 }
 209
 210 vrp2_create()
 211 {
 212         simple_if_init $rp2 192.0.2.18/28
 213         __simple_if_init v1 v$rp2 192.0.2.33/28
 214         __simple_if_init v3 v$rp2 192.0.2.49/28
 215         tc qdisc add dev v1 clsact
 216 }
 217
 218 vrp2_destroy()
 219 {
 220         tc qdisc del dev v1 clsact
 221         __simple_if_fini v3 192.0.2.49/28
 222         __simple_if_fini v1 192.0.2.33/28
 223         simple_if_fini $rp2 192.0.2.18/28
 224 }
 225
 226 ns_init_common()
 227 {
 228         local in_if=$1; shift
 229         local in_addr=$1; shift
 230         local other_in_addr=$1; shift
 231         local vxlan_name=$1; shift
 232         local vxlan_id=$1; shift
 233         local vlan_id=$1; shift
 234         local host_addr=$1; shift
 235         local nh_addr=$1; shift
 236
 237         ip link set dev $in_if up
 238         ip address add dev $in_if $in_addr/28
 239         tc qdisc add dev $in_if clsact
 240
 241         ip link add name br3 type bridge vlan_filtering 0
 242         ip link set dev br3 up
 243
 244         ip link add name w1 type veth peer name w2
 245
 246         ip link set dev w1 master br3
 247         ip link set dev w1 up
 248
 249         ip link add name $vxlan_name type vxlan id $vxlan_id local $in_addr \
 250                 dstport "$VXPORT"
 251         ip link set dev $vxlan_name up
 252         bridge fdb append dev $vxlan_name 00:00:00:00:00:00 dst 192.0.2.17 self
 253         bridge fdb append dev $vxlan_name 00:00:00:00:00:00 dst $other_in_addr self
 254
 255         ip link set dev $vxlan_name master br3
 256         tc qdisc add dev $vxlan_name clsact
 257
 258         simple_if_init w2
 259         vlan_create w2 $vlan_id vw2 $host_addr/28
 260
 261         ip route add 192.0.2.16/28 nexthop via $nh_addr
 262         ip route add $other_in_addr/32 nexthop via $nh_addr
 263 }
 264 export -f ns_init_common
 265
 266 ns1_create()
 267 {
 268         ip netns add ns1
 269         ip link set dev v2 netns ns1
 270         in_ns ns1 \
 271               ns_init_common v2 192.0.2.34 192.0.2.50 vx100 1000 10 192.0.2.3 \
 272               192.0.2.33
 273
 274         in_ns ns1 bridge vlan add vid 100 dev vx100 pvid untagged
 275 }
 276
 277 ns1_destroy()
 278 {
 279         ip netns exec ns1 ip link set dev v2 netns 1
 280         ip netns del ns1
 281 }
 282
 283 ns2_create()
 284 {
 285         ip netns add ns2
 286         ip link set dev v4 netns ns2
 287         in_ns ns2 \
 288               ns_init_common v4 192.0.2.50 192.0.2.34 vx200 2000 20 192.0.2.4 \
 289               192.0.2.49
 290
 291         in_ns ns2 ip link add name w1.20 link w1 type vlan id 20
 292         in_ns ns2 ip link set dev w1.20 master br3
 293         in_ns ns2 ip link set dev w1.20 up
 294 }
 295
 296 ns2_destroy()
 297 {
 298         ip netns exec ns2 ip link set dev v4 netns 1
 299         ip netns del ns2
 300 }
 301
 302 setup_prepare()
 303 {
 304         h1=${NETIFS[p1]}
 305         swp1=${NETIFS[p2]}
 306
 307         swp2=${NETIFS[p3]}
 308         h2=${NETIFS[p4]}
 309
 310         rp1=${NETIFS[p5]}
 311         rp2=${NETIFS[p6]}
 312
 313         vrf_prepare
 314         forwarding_enable
 315
 316         h1_create
 317         h2_create
 318         switch_create
 319
 320         ip link add name v1 type veth peer name v2
 321         ip link add name v3 type veth peer name v4
 322         vrp2_create
 323         ns1_create
 324         ns2_create
 325
 326         r1_mac=$(in_ns ns1 mac_get w2)
 327         r2_mac=$(in_ns ns2 mac_get w2)
 328         h2_mac=$(mac_get $h2)
 329 }
 330
 331 cleanup()
 332 {
 333         pre_cleanup
 334
 335         ns2_destroy
 336         ns1_destroy
 337         vrp2_destroy
 338         ip link del dev v3
 339         ip link del dev v1
 340
 341         switch_destroy
 342         h2_destroy
 343         h1_destroy
 344
 345         forwarding_restore
 346         vrf_cleanup
 347 }
 348
 349 ping_ipv4()
 350 {
 351         ping_test $h1 192.0.2.3 ": local->remote 1 through VxLAN with an 802.1ad bridge"
 352         ping_test $h2 192.0.2.4 ": local->remote 2 through VxLAN with an 802.1d bridge"
 353 }
 354
 355 test_all()
 356 {
 357         echo "Running tests with UDP port $VXPORT"
 358         tests_run
 359 }
 360
 361 trap cleanup EXIT
 362
 363 setup_prepare
 364 setup_wait
 365 test_all
 366
 367 exit $EXIT_STATUS