tools/testing/selftests/net/forwarding/mirror_gre_bridge_1q.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).
   6 #
   7 # This test uses standard topology for testing mirror-to-gretap. See
   8 # mirror_gre_topo_lib.sh for more details. The full topology is as follows:
   9 #
  10 #  +---------------------+                               +---------------------+
  11 #  | H1                  |                               |                  H2 |
  12 #  |     + $h1           |                               |           $h2 +     |
  13 #  |     | 192.0.2.1/28  |                               |  192.0.2.2/28 |     |
  14 #  +-----|---------------+                               +---------------|-----+
  15 #        |                                                               |
  16 #  +-----|---------------------------------------------------------------|-----+
  17 #  | SW  o---> mirror                                                    |     |
  18 #  | +---|---------------------------------------------------------------|---+ |
  19 #  | |   + $swp1                  + br1 (802.1q bridge)            $swp2 +   | |
  20 #  | |                              192.0.2.129/28                           | |
  21 #  | |   + $swp3                    2001:db8:2::1/64                         | |
  22 #  | |   | vid555                   vid555[pvid,untagged]                    | |
  23 #  | +---|-------------------------------------------------------------------+ |
  24 #  |     |                                          ^                      ^   |
  25 #  |     |                     + gt6 (ip6gretap)    |   + gt4 (gretap)     |   |
  26 #  |     |                     : loc=2001:db8:2::1  |   : loc=192.0.2.129  |   |
  27 #  |     |                     : rem=2001:db8:2::2 -+   : rem=192.0.2.130 -+   |
  28 #  |     |                     : ttl=100                : ttl=100              |
  29 #  |     |                     : tos=inherit            : tos=inherit          |
  30 #  +-----|---------------------:------------------------:----------------------+
  31 #        |                     :                        :
  32 #  +-----|---------------------:------------------------:----------------------+
  33 #  | H3  + $h3                 + h3-gt6(ip6gretap)      + h3-gt4 (gretap)      |
  34 #  |     |                       loc=2001:db8:2::2        loc=192.0.2.130      |
  35 #  |     + $h3.555               rem=2001:db8:2::1        rem=192.0.2.129      |
  36 #  |       192.0.2.130/28        ttl=100                  ttl=100              |
  37 #  |       2001:db8:2::2/64      tos=inherit              tos=inherit          |
  38 #  +---------------------------------------------------------------------------+
  39
  40 ALL_TESTS="
  41         test_gretap
  42         test_ip6gretap
  43 "
  44
  45 NUM_NETIFS=6
  46 source lib.sh
  47 source mirror_lib.sh
  48 source mirror_gre_lib.sh
  49 source mirror_gre_topo_lib.sh
  50
  51 setup_prepare()
  52 {
  53         h1=${NETIFS[p1]}
  54         swp1=${NETIFS[p2]}
  55
  56         swp2=${NETIFS[p3]}
  57         h2=${NETIFS[p4]}
  58
  59         swp3=${NETIFS[p5]}
  60         h3=${NETIFS[p6]}
  61
  62         vrf_prepare
  63         mirror_gre_topo_create
  64         # Avoid changing br1's PVID while it is operational as a L3 interface.
  65         ip link set dev br1 down
  66
  67         ip link set dev $swp3 master br1
  68         bridge vlan add dev br1 vid 555 pvid untagged self
  69         ip link set dev br1 up
  70         ip address add dev br1 192.0.2.129/28
  71         ip address add dev br1 2001:db8:2::1/64
  72
  73         ip -4 route add 192.0.2.130/32 dev br1
  74         ip -6 route add 2001:db8:2::2/128 dev br1
  75
  76         vlan_create $h3 555 v$h3 192.0.2.130/28 2001:db8:2::2/64
  77         bridge vlan add dev $swp3 vid 555
  78 }
  79
  80 cleanup()
  81 {
  82         pre_cleanup
  83
  84         ip link set dev $swp3 nomaster
  85         vlan_destroy $h3 555
  86
  87         mirror_gre_topo_destroy
  88         vrf_cleanup
  89 }
  90
  91 test_gretap()
  92 {
  93         full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
  94         full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
  95 }
  96
  97 test_ip6gretap()
  98 {
  99         full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
 100         full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
 101 }
 102
 103 tests()
 104 {
 105         slow_path_trap_install $swp1 ingress
 106         slow_path_trap_install $swp1 egress
 107
 108         tests_run
 109
 110         slow_path_trap_uninstall $swp1 egress
 111         slow_path_trap_uninstall $swp1 ingress
 112 }
 113
 114 trap cleanup EXIT
 115
 116 setup_prepare
 117 setup_wait
 118
 119 tcflags="skip_hw"
 120 tests
 121
 122 if ! tc_offload_check; then
 123         echo "WARN: Could not test offloaded functionality"
 124 else
 125         tcflags="skip_sw"
 126         tests
 127 fi
 128
 129 exit $EXIT_STATUS