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

   1 # SPDX-License-Identifier: GPL-2.0
   2
   3 # This is the standard topology for testing mirroring. The tests that use it
   4 # tweak it in one way or another--typically add more devices to the topology.
   5 #
   6 #   +---------------------+                             +---------------------+
   7 #   | H1                  |                             |                  H2 |
   8 #   |     + $h1           |                             |           $h2 +     |
   9 #   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
  10 #   +-----|---------------+                             +---------------|-----+
  11 #         |                                                             |
  12 #   +-----|-------------------------------------------------------------|-----+
  13 #   | SW  o--> mirror                                                   |     |
  14 #   | +---|-------------------------------------------------------------|---+ |
  15 #   | |   + $swp1                    BR                           $swp2 +   | |
  16 #   | +---------------------------------------------------------------------+ |
  17 #   |                                                                         |
  18 #   |     + $swp3                                                             |
  19 #   +-----|-------------------------------------------------------------------+
  20 #         |
  21 #   +-----|-------------------------------------------------------------------+
  22 #   | H3  + $h3                                                               |
  23 #   |                                                                         |
  24 #   +-------------------------------------------------------------------------+
  25
  26 mirror_topo_h1_create()
  27 {
  28         simple_if_init $h1 192.0.2.1/28
  29 }
  30
  31 mirror_topo_h1_destroy()
  32 {
  33         simple_if_fini $h1 192.0.2.1/28
  34 }
  35
  36 mirror_topo_h2_create()
  37 {
  38         simple_if_init $h2 192.0.2.2/28
  39 }
  40
  41 mirror_topo_h2_destroy()
  42 {
  43         simple_if_fini $h2 192.0.2.2/28
  44 }
  45
  46 mirror_topo_h3_create()
  47 {
  48         simple_if_init $h3
  49         tc qdisc add dev $h3 clsact
  50 }
  51
  52 mirror_topo_h3_destroy()
  53 {
  54         tc qdisc del dev $h3 clsact
  55         simple_if_fini $h3
  56 }
  57
  58 mirror_topo_switch_create()
  59 {
  60         ip link set dev $swp3 up
  61
  62         ip link add name br1 type bridge vlan_filtering 1
  63         ip link set dev br1 up
  64
  65         ip link set dev $swp1 master br1
  66         ip link set dev $swp1 up
  67
  68         ip link set dev $swp2 master br1
  69         ip link set dev $swp2 up
  70
  71         tc qdisc add dev $swp1 clsact
  72 }
  73
  74 mirror_topo_switch_destroy()
  75 {
  76         tc qdisc del dev $swp1 clsact
  77
  78         ip link set dev $swp1 down
  79         ip link set dev $swp2 down
  80         ip link del dev br1
  81
  82         ip link set dev $swp3 down
  83 }
  84
  85 mirror_topo_create()
  86 {
  87         mirror_topo_h1_create
  88         mirror_topo_h2_create
  89         mirror_topo_h3_create
  90
  91         mirror_topo_switch_create
  92 }
  93
  94 mirror_topo_destroy()
  95 {
  96         mirror_topo_switch_destroy
  97
  98         mirror_topo_h3_destroy
  99         mirror_topo_h2_destroy
 100         mirror_topo_h1_destroy
 101 }