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

   1 # SPDX-License-Identifier: GPL-2.0
   2
   3 # This is the standard topology for testing mirroring to gretap and ip6gretap
   4 # netdevices. The tests that use it tweak it in one way or another--importantly,
   5 # $swp3 and $h3 need to have addresses set up.
   6 #
   7 #   +---------------------+                             +---------------------+
   8 #   | H1                  |                             |                  H2 |
   9 #   |     + $h1           |                             |           $h2 +     |
  10 #   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
  11 #   +-----|---------------+                             +---------------|-----+
  12 #         |                                                             |
  13 #   +-----|-------------------------------------------------------------|-----+
  14 #   | SW  o--> mirror                                                   |     |
  15 #   | +---|-------------------------------------------------------------|---+ |
  16 #   | |   + $swp1                    BR                           $swp2 +   | |
  17 #   | +---------------------------------------------------------------------+ |
  18 #   |                                                                         |
  19 #   |     + $swp3               + gt6 (ip6gretap)      + gt4 (gretap)         |
  20 #   |     |                     : loc=2001:db8:2::1    : loc=192.0.2.129      |
  21 #   |     |                     : rem=2001:db8:2::2    : rem=192.0.2.130      |
  22 #   |     |                     : ttl=100              : ttl=100              |
  23 #   |     |                     : tos=inherit          : tos=inherit          |
  24 #   |     |                     :                      :                      |
  25 #   +-----|---------------------:----------------------:----------------------+
  26 #         |                     :                      :
  27 #   +-----|---------------------:----------------------:----------------------+
  28 #   | H3  + $h3                 + h3-gt6 (ip6gretap)   + h3-gt4 (gretap)      |
  29 #   |                             loc=2001:db8:2::2      loc=192.0.2.130      |
  30 #   |                             rem=2001:db8:2::1      rem=192.0.2.129      |
  31 #   |                             ttl=100                ttl=100              |
  32 #   |                             tos=inherit            tos=inherit          |
  33 #   |                                                                         |
  34 #   +-------------------------------------------------------------------------+
  35
  36 source "$relative_path/mirror_topo_lib.sh"
  37
  38 mirror_gre_topo_h3_create()
  39 {
  40         mirror_topo_h3_create
  41
  42         tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
  43         ip link set h3-gt4 vrf v$h3
  44         matchall_sink_create h3-gt4
  45
  46         tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
  47         ip link set h3-gt6 vrf v$h3
  48         matchall_sink_create h3-gt6
  49 }
  50
  51 mirror_gre_topo_h3_destroy()
  52 {
  53         tunnel_destroy h3-gt6
  54         tunnel_destroy h3-gt4
  55
  56         mirror_topo_h3_destroy
  57 }
  58
  59 mirror_gre_topo_switch_create()
  60 {
  61         mirror_topo_switch_create
  62
  63         tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
  64                       ttl 100 tos inherit
  65
  66         tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
  67                       ttl 100 tos inherit allow-localremote
  68 }
  69
  70 mirror_gre_topo_switch_destroy()
  71 {
  72         tunnel_destroy gt6
  73         tunnel_destroy gt4
  74
  75         mirror_topo_switch_destroy
  76 }
  77
  78 mirror_gre_topo_create()
  79 {
  80         mirror_topo_h1_create
  81         mirror_topo_h2_create
  82         mirror_gre_topo_h3_create
  83
  84         mirror_gre_topo_switch_create
  85 }
  86
  87 mirror_gre_topo_destroy()
  88 {
  89         mirror_gre_topo_switch_destroy
  90
  91         mirror_gre_topo_h3_destroy
  92         mirror_topo_h2_destroy
  93         mirror_topo_h1_destroy
  94 }