mirror_gre.sh

  1#!/bin/bash
  2# SPDX-License-Identifier: GPL-2.0
  3
  4# This test uses standard topology for testing gretap. See
  5# mirror_gre_topo_lib.sh for more details.
  6#
  7# Test for "tc action mirred egress mirror" when the device to mirror to is a
  8# gretap or ip6gretap netdevice. Expect that the packets come out encapsulated,
  9# and another gretap / ip6gretap netdevice is then capable of decapsulating the
 10# traffic. Test that the payload is what is expected (ICMP ping request or
 11# reply, depending on test).
 12
 13ALL_TESTS="
 14	test_gretap
 15	test_ip6gretap
 16	test_gretap_mac
 17	test_ip6gretap_mac
 18	test_two_spans
 19"
 20
 21NUM_NETIFS=6
 22source lib.sh
 23source mirror_lib.sh
 24source mirror_gre_lib.sh
 25source mirror_gre_topo_lib.sh
 26
 27setup_prepare()
 28{
 29	h1=${NETIFS[p1]}
 30	swp1=${NETIFS[p2]}
 31
 32	swp2=${NETIFS[p3]}
 33	h2=${NETIFS[p4]}
 34
 35	swp3=${NETIFS[p5]}
 36	h3=${NETIFS[p6]}
 37
 38	vrf_prepare
 39	mirror_gre_topo_create
 40
 41	ip address add dev $swp3 192.0.2.129/28
 42	ip address add dev $h3 192.0.2.130/28
 43
 44	ip address add dev $swp3 2001:db8:2::1/64
 45	ip address add dev $h3 2001:db8:2::2/64
 46}
 47
 48cleanup()
 49{
 50	pre_cleanup
 51
 52	ip address del dev $h3 2001:db8:2::2/64
 53	ip address del dev $swp3 2001:db8:2::1/64
 54
 55	ip address del dev $h3 192.0.2.130/28
 56	ip address del dev $swp3 192.0.2.129/28
 57
 58	mirror_gre_topo_destroy
 59	vrf_cleanup
 60}
 61
 62test_span_gre_mac()
 63{
 64	local tundev=$1; shift
 65	local direction=$1; shift
 66	local what=$1; shift
 67
 68	case "$direction" in
 69	ingress) local src_mac=$(mac_get $h1); local dst_mac=$(mac_get $h2)
 70		;;
 71	egress) local src_mac=$(mac_get $h2); local dst_mac=$(mac_get $h1)
 72		;;
 73	esac
 74
 75	RET=0
 76
 77	mirror_install $swp1 $direction $tundev "matchall"
 78	icmp_capture_install h3-${tundev} "src_mac $src_mac dst_mac $dst_mac"
 79
 80	mirror_test v$h1 192.0.2.1 192.0.2.2 h3-${tundev} 100 10
 81
 82	icmp_capture_uninstall h3-${tundev}
 83	mirror_uninstall $swp1 $direction
 84
 85	log_test "$direction $what: envelope MAC"
 86}
 87
 88test_two_spans()
 89{
 90	RET=0
 91
 92	mirror_install $swp1 ingress gt4 "matchall"
 93	mirror_install $swp1 egress gt6 "matchall"
 94	quick_test_span_gre_dir gt4 8 0
 95	quick_test_span_gre_dir gt6 0 8
 96
 97	mirror_uninstall $swp1 ingress
 98	fail_test_span_gre_dir gt4 8 0
 99	quick_test_span_gre_dir gt6 0 8
100
101	mirror_install $swp1 ingress gt4 "matchall"
102	mirror_uninstall $swp1 egress
103	quick_test_span_gre_dir gt4 8 0
104	fail_test_span_gre_dir gt6 0 8
105
106	mirror_uninstall $swp1 ingress
107	log_test "two simultaneously configured mirrors"
108}
109
110test_gretap()
111{
112	full_test_span_gre_dir gt4 ingress 8 0 "mirror to gretap"
113	full_test_span_gre_dir gt4 egress 0 8 "mirror to gretap"
114}
115
116test_ip6gretap()
117{
118	full_test_span_gre_dir gt6 ingress 8 0 "mirror to ip6gretap"
119	full_test_span_gre_dir gt6 egress 0 8 "mirror to ip6gretap"
120}
121
122test_gretap_mac()
123{
124	test_span_gre_mac gt4 ingress "mirror to gretap"
125	test_span_gre_mac gt4 egress "mirror to gretap"
126}
127
128test_ip6gretap_mac()
129{
130	test_span_gre_mac gt6 ingress "mirror to ip6gretap"
131	test_span_gre_mac gt6 egress "mirror to ip6gretap"
132}
133
134trap cleanup EXIT
135
136setup_prepare
137setup_wait
138
139tests_run
140
141exit $EXIT_STATUS