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#  |     + $h3.555               rem=2001:db8:2::1        rem=192.0.2.129      |
 36#  |       192.0.2.130/28        ttl=100                  ttl=100              |
 37#  |       2001:db8:2::2/64      tos=inherit              tos=inherit          |
 38#  +---------------------------------------------------------------------------+
 39
 40ALL_TESTS="
 41	test_gretap
 42	test_ip6gretap
 43"
 44
 45NUM_NETIFS=6
 46source lib.sh
 47source mirror_lib.sh
 48source mirror_gre_lib.sh
 49source mirror_gre_topo_lib.sh
 50
 51setup_prepare()
 52{
 53	h1=${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
 80cleanup()
 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
 91test_gretap()
 92{
 93	ip neigh replace 192.0.2.130 lladdr $(mac_get $h3) \
 94		 nud permanent dev br1
 95	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
 96	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
 97}
 98
 99test_ip6gretap()
100{
101	ip neigh replace 2001:db8:2::2 lladdr $(mac_get $h3) \
102		nud permanent dev br1
103	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
104	full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
105}
106
107trap cleanup EXIT
108
109setup_prepare
110setup_wait
111
112tests_run
113
114exit $EXIT_STATUS