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

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3
   4 #   +---------------------+                             +---------------------+
   5 #   | H1                  |                             |                  H2 |
   6 #   |     + $h1           |                             |           $h2 +     |
   7 #   |     | 192.0.2.1/28  |                             |  192.0.2.2/28 |     |
   8 #   +-----|---------------+                             +---------------|-----+
   9 #         |                                                             |
  10 #   +-----|-------------------------------------------------------------|-----+
  11 #   | SW  o--> mirror                                                   |     |
  12 #   | +---|-------------------------------------------------------------|---+ |
  13 #   | |   + $swp1                    BR                           $swp2 +   | |
  14 #   | +---------------------------------------------------------------------+ |
  15 #   |                                                                         |
  16 #   | +---------------------------------------------------------------------+ |
  17 #   | | OL                      + gt6 (ip6gretap)      + gt4 (gretap)       | |
  18 #   | |                         : loc=2001:db8:2::1    : loc=192.0.2.129    | |
  19 #   | |                         : rem=2001:db8:2::2    : rem=192.0.2.130    | |
  20 #   | |                         : ttl=100              : ttl=100            | |
  21 #   | |                         : tos=inherit          : tos=inherit        | |
  22 #   | +-------------------------:--|-------------------:--|-----------------+ |
  23 #   |                           :  |                   :  |                   |
  24 #   | +-------------------------:--|-------------------:--|-----------------+ |
  25 #   | | UL                      :  |,---------------------'                 | |
  26 #   | |   + $swp3               :  ||                  :                    | |
  27 #   | |   | 192.0.2.129/28      :  vv                  :                    | |
  28 #   | |   | 2001:db8:2::1/64    :  + ul (dummy)        :                    | |
  29 #   | +---|---------------------:----------------------:--------------------+ |
  30 #   +-----|---------------------:----------------------:----------------------+
  31 #         |                     :                      :
  32 #   +-----|---------------------:----------------------:----------------------+
  33 #   | H3  + $h3                 + h3-gt6 (ip6gretap)   + h3-gt4 (gretap)      |
  34 #   |       192.0.2.130/28        loc=2001:db8:2::2      loc=192.0.2.130      |
  35 #   |       2001:db8:2::2/64      rem=2001:db8:2::1      rem=192.0.2.129      |
  36 #   |                             ttl=100                ttl=100              |
  37 #   |                             tos=inherit            tos=inherit          |
  38 #   |                                                                         |
  39 #   +-------------------------------------------------------------------------+
  40 #
  41 # This tests mirroring to gretap and ip6gretap configured in an overlay /
  42 # underlay manner, i.e. with a bound dummy device that marks underlay VRF where
  43 # the encapsulated packed should be routed.
  44
  45 ALL_TESTS="
  46         test_gretap
  47         test_ip6gretap
  48 "
  49
  50 NUM_NETIFS=6
  51 source lib.sh
  52 source mirror_lib.sh
  53 source mirror_gre_lib.sh
  54
  55 h1_create()
  56 {
  57         simple_if_init $h1 192.0.2.1/28
  58 }
  59
  60 h1_destroy()
  61 {
  62         simple_if_fini $h1 192.0.2.1/28
  63 }
  64
  65 h2_create()
  66 {
  67         simple_if_init $h2 192.0.2.2/28
  68 }
  69
  70 h2_destroy()
  71 {
  72         simple_if_fini $h2 192.0.2.2/28
  73 }
  74
  75 h3_create()
  76 {
  77         simple_if_init $h3 192.0.2.130/28 2001:db8:2::2/64
  78
  79         tunnel_create h3-gt4 gretap 192.0.2.130 192.0.2.129
  80         ip link set h3-gt4 vrf v$h3
  81         matchall_sink_create h3-gt4
  82
  83         tunnel_create h3-gt6 ip6gretap 2001:db8:2::2 2001:db8:2::1
  84         ip link set h3-gt6 vrf v$h3
  85         matchall_sink_create h3-gt6
  86 }
  87
  88 h3_destroy()
  89 {
  90         tunnel_destroy h3-gt6
  91         tunnel_destroy h3-gt4
  92
  93         simple_if_fini $h3 192.0.2.130/28 2001:db8:2::2/64
  94 }
  95
  96 switch_create()
  97 {
  98         # Bridge between H1 and H2.
  99
 100         ip link add name br1 type bridge vlan_filtering 1
 101         ip link set dev br1 up
 102
 103         ip link set dev $swp1 master br1
 104         ip link set dev $swp1 up
 105
 106         ip link set dev $swp2 master br1
 107         ip link set dev $swp2 up
 108
 109         tc qdisc add dev $swp1 clsact
 110
 111         # Underlay.
 112
 113         simple_if_init $swp3 192.0.2.129/28 2001:db8:2::1/64
 114
 115         ip link add name ul type dummy
 116         ip link set dev ul master v$swp3
 117         ip link set dev ul up
 118
 119         # Overlay.
 120
 121         vrf_create vrf-ol
 122         ip link set dev vrf-ol up
 123
 124         tunnel_create gt4 gretap 192.0.2.129 192.0.2.130 \
 125                       ttl 100 tos inherit dev ul
 126         ip link set dev gt4 master vrf-ol
 127         ip link set dev gt4 up
 128
 129         tunnel_create gt6 ip6gretap 2001:db8:2::1 2001:db8:2::2 \
 130                       ttl 100 tos inherit dev ul allow-localremote
 131         ip link set dev gt6 master vrf-ol
 132         ip link set dev gt6 up
 133 }
 134
 135 switch_destroy()
 136 {
 137         vrf_destroy vrf-ol
 138
 139         tunnel_destroy gt6
 140         tunnel_destroy gt4
 141
 142         simple_if_fini $swp3 192.0.2.129/28 2001:db8:2::1/64
 143
 144         ip link del dev ul
 145
 146         tc qdisc del dev $swp1 clsact
 147
 148         ip link set dev $swp1 down
 149         ip link set dev $swp2 down
 150         ip link del dev br1
 151 }
 152
 153 setup_prepare()
 154 {
 155         h1=${NETIFS[p1]}
 156         swp1=${NETIFS[p2]}
 157
 158         swp2=${NETIFS[p3]}
 159         h2=${NETIFS[p4]}
 160
 161         swp3=${NETIFS[p5]}
 162         h3=${NETIFS[p6]}
 163
 164         vrf_prepare
 165
 166         h1_create
 167         h2_create
 168         h3_create
 169
 170         switch_create
 171 }
 172
 173 cleanup()
 174 {
 175         pre_cleanup
 176
 177         switch_destroy
 178
 179         h3_destroy
 180         h2_destroy
 181         h1_destroy
 182
 183         vrf_cleanup
 184 }
 185
 186 test_gretap()
 187 {
 188         full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap w/ UL"
 189         full_test_span_gre_dir gt4 egress  0 8 "mirror to gretap w/ UL"
 190 }
 191
 192 test_ip6gretap()
 193 {
 194         full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap w/ UL"
 195         full_test_span_gre_dir gt6 egress  0 8 "mirror to ip6gretap w/ UL"
 196 }
 197
 198 test_all()
 199 {
 200         RET=0
 201
 202         slow_path_trap_install $swp1 ingress
 203         slow_path_trap_install $swp1 egress
 204
 205         tests_run
 206
 207         slow_path_trap_uninstall $swp1 egress
 208         slow_path_trap_uninstall $swp1 ingress
 209 }
 210
 211 trap cleanup EXIT
 212
 213 setup_prepare
 214 setup_wait
 215
 216 tcflags="skip_hw"
 217 test_all
 218
 219 if ! tc_offload_check; then
 220         echo "WARN: Could not test offloaded functionality"
 221 else
 222         tcflags="skip_sw"
 223         test_all
 224 fi
 225
 226 exit $EXIT_STATUS