tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q_lag.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 # Test for "tc action mirred egress mirror" when the underlay route points at a
   5 # bridge device with vlan filtering (802.1q), and the egress device is a team
   6 # device.
   7 #
   8 # +----------------------+                             +----------------------+
   9 # | H1                   |                             |                   H2 |
  10 # |     + $h1.333        |                             |        $h1.555 +     |
  11 # |     | 192.0.2.1/28   |                             |  192.0.2.18/28 |     |
  12 # +-----|----------------+                             +----------------|-----+
  13 #       |                               $h1                             |
  14 #       +--------------------------------+------------------------------+
  15 #                                        |
  16 # +--------------------------------------|------------------------------------+
  17 # | SW                                   o---> mirror                         |
  18 # |                                      |                                    |
  19 # |     +--------------------------------+------------------------------+     |
  20 # |     |                              $swp1                            |     |
  21 # |     + $swp1.333                                           $swp1.555 +     |
  22 # |       192.0.2.2/28                                    192.0.2.17/28       |
  23 # |                                                                           |
  24 # | +-----------------------------------------------------------------------+ |
  25 # | |                        BR1 (802.1q)                                   | |
  26 # | |     + lag (team)       192.0.2.129/28                                 | |
  27 # | |    / \                 2001:db8:2::1/64                               | |
  28 # | +---/---\---------------------------------------------------------------+ |
  29 # |    /     \                                                            ^   |
  30 # |   |       \                                        + gt4 (gretap)     |   |
  31 # |   |        \                                         loc=192.0.2.129  |   |
  32 # |   |         \                                        rem=192.0.2.130 -+   |
  33 # |   |          \                                       ttl=100              |
  34 # |   |           \                                      tos=inherit          |
  35 # |   |            \                                                          |
  36 # |   |             \_________________________________                        |
  37 # |   |                                               \                       |
  38 # |   + $swp3                                          + $swp4                |
  39 # +---|------------------------------------------------|----------------------+
  40 #     |                                                |
  41 # +---|----------------------+                     +---|----------------------+
  42 # |   + $h3               H3 |                     |   + $h4               H4 |
  43 # |     192.0.2.130/28       |                     |     192.0.2.130/28       |
  44 # |     2001:db8:2::2/64     |                     |     2001:db8:2::2/64     |
  45 # +--------------------------+                     +--------------------------+
  46
  47 ALL_TESTS="
  48         test_mirror_gretap_first
  49         test_mirror_gretap_second
  50 "
  51
  52 NUM_NETIFS=6
  53 source lib.sh
  54 source mirror_lib.sh
  55 source mirror_gre_lib.sh
  56
  57 require_command $ARPING
  58
  59 vlan_host_create()
  60 {
  61         local if_name=$1; shift
  62         local vid=$1; shift
  63         local vrf_name=$1; shift
  64         local ips=("${@}")
  65
  66         vrf_create $vrf_name
  67         ip link set dev $vrf_name up
  68         vlan_create $if_name $vid $vrf_name "${ips[@]}"
  69 }
  70
  71 vlan_host_destroy()
  72 {
  73         local if_name=$1; shift
  74         local vid=$1; shift
  75         local vrf_name=$1; shift
  76
  77         vlan_destroy $if_name $vid
  78         ip link set dev $vrf_name down
  79         vrf_destroy $vrf_name
  80 }
  81
  82 h1_create()
  83 {
  84         vlan_host_create $h1 333 vrf-h1 192.0.2.1/28
  85         ip -4 route add 192.0.2.16/28 vrf vrf-h1 nexthop via 192.0.2.2
  86 }
  87
  88 h1_destroy()
  89 {
  90         ip -4 route del 192.0.2.16/28 vrf vrf-h1
  91         vlan_host_destroy $h1 333 vrf-h1
  92 }
  93
  94 h2_create()
  95 {
  96         vlan_host_create $h1 555 vrf-h2 192.0.2.18/28
  97         ip -4 route add 192.0.2.0/28 vrf vrf-h2 nexthop via 192.0.2.17
  98 }
  99
 100 h2_destroy()
 101 {
 102         ip -4 route del 192.0.2.0/28 vrf vrf-h2
 103         vlan_host_destroy $h1 555 vrf-h2
 104 }
 105
 106 h3_create()
 107 {
 108         simple_if_init $h3 192.0.2.130/28
 109         tc qdisc add dev $h3 clsact
 110 }
 111
 112 h3_destroy()
 113 {
 114         tc qdisc del dev $h3 clsact
 115         simple_if_fini $h3 192.0.2.130/28
 116 }
 117
 118 h4_create()
 119 {
 120         simple_if_init $h4 192.0.2.130/28
 121         tc qdisc add dev $h4 clsact
 122 }
 123
 124 h4_destroy()
 125 {
 126         tc qdisc del dev $h4 clsact
 127         simple_if_fini $h4 192.0.2.130/28
 128 }
 129
 130 switch_create()
 131 {
 132         ip link set dev $swp1 up
 133         tc qdisc add dev $swp1 clsact
 134         vlan_create $swp1 333 "" 192.0.2.2/28
 135         vlan_create $swp1 555 "" 192.0.2.17/28
 136
 137         tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
 138                       ttl 100 tos inherit
 139
 140         ip link set dev $swp3 up
 141         ip link set dev $swp4 up
 142
 143         ip link add name br1 type bridge vlan_filtering 1
 144         ip link set dev br1 up
 145         __addr_add_del br1 add 192.0.2.129/32
 146         ip -4 route add 192.0.2.130/32 dev br1
 147
 148         team_create lag loadbalance $swp3 $swp4
 149         ip link set dev lag master br1
 150 }
 151
 152 switch_destroy()
 153 {
 154         ip link set dev lag nomaster
 155         team_destroy lag
 156
 157         ip -4 route del 192.0.2.130/32 dev br1
 158         __addr_add_del br1 del 192.0.2.129/32
 159         ip link set dev br1 down
 160         ip link del dev br1
 161
 162         ip link set dev $swp4 down
 163         ip link set dev $swp3 down
 164
 165         tunnel_destroy gt4
 166
 167         vlan_destroy $swp1 555
 168         vlan_destroy $swp1 333
 169         tc qdisc del dev $swp1 clsact
 170         ip link set dev $swp1 down
 171 }
 172
 173 setup_prepare()
 174 {
 175         h1=${NETIFS[p1]}
 176         swp1=${NETIFS[p2]}
 177
 178         swp3=${NETIFS[p3]}
 179         h3=${NETIFS[p4]}
 180
 181         swp4=${NETIFS[p5]}
 182         h4=${NETIFS[p6]}
 183
 184         vrf_prepare
 185
 186         ip link set dev $h1 up
 187         h1_create
 188         h2_create
 189         h3_create
 190         h4_create
 191         switch_create
 192
 193         forwarding_enable
 194
 195         trap_install $h3 ingress
 196         trap_install $h4 ingress
 197 }
 198
 199 cleanup()
 200 {
 201         pre_cleanup
 202
 203         trap_uninstall $h4 ingress
 204         trap_uninstall $h3 ingress
 205
 206         forwarding_restore
 207
 208         switch_destroy
 209         h4_destroy
 210         h3_destroy
 211         h2_destroy
 212         h1_destroy
 213         ip link set dev $h1 down
 214
 215         vrf_cleanup
 216 }
 217
 218 test_lag_slave()
 219 {
 220         local host_dev=$1; shift
 221         local up_dev=$1; shift
 222         local down_dev=$1; shift
 223         local what=$1; shift
 224
 225         RET=0
 226
 227         tc filter add dev $swp1 ingress pref 999 \
 228                 proto 802.1q flower vlan_ethtype arp $tcflags \
 229                 action pass
 230         mirror_install $swp1 ingress gt4 \
 231                 "proto 802.1q flower vlan_id 333 $tcflags"
 232
 233         # Test connectivity through $up_dev when $down_dev is set down.
 234         ip link set dev $down_dev down
 235         ip neigh flush dev br1
 236         setup_wait_dev $up_dev
 237         setup_wait_dev $host_dev
 238         $ARPING -I br1 192.0.2.130 -qfc 1
 239         sleep 2
 240         mirror_test vrf-h1 192.0.2.1 192.0.2.18 $host_dev 1 10
 241
 242         # Test lack of connectivity when both slaves are down.
 243         ip link set dev $up_dev down
 244         sleep 2
 245         mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h3 1 0
 246         mirror_test vrf-h1 192.0.2.1 192.0.2.18 $h4 1 0
 247
 248         ip link set dev $up_dev up
 249         ip link set dev $down_dev up
 250         mirror_uninstall $swp1 ingress
 251         tc filter del dev $swp1 ingress pref 999
 252
 253         log_test "$what ($tcflags)"
 254 }
 255
 256 test_mirror_gretap_first()
 257 {
 258         test_lag_slave $h3 $swp3 $swp4 "mirror to gretap: LAG first slave"
 259 }
 260
 261 test_mirror_gretap_second()
 262 {
 263         test_lag_slave $h4 $swp4 $swp3 "mirror to gretap: LAG second slave"
 264 }
 265
 266 test_all()
 267 {
 268         slow_path_trap_install $swp1 ingress
 269         slow_path_trap_install $swp1 egress
 270
 271         tests_run
 272
 273         slow_path_trap_uninstall $swp1 egress
 274         slow_path_trap_uninstall $swp1 ingress
 275 }
 276
 277 trap cleanup EXIT
 278
 279 setup_prepare
 280 setup_wait
 281
 282 tcflags="skip_hw"
 283 test_all
 284
 285 if ! tc_offload_check; then
 286         echo "WARN: Could not test offloaded functionality"
 287 else
 288         tcflags="skip_sw"
 289         test_all
 290 fi
 291
 292 exit $EXIT_STATUS