Test that when a mirror to gretap or ip6gretap netdevice is configured,
changes to neighbors are reflected.
Signed-off-by: Petr Machata <pe...@mellanox.com>
Reviewed-by: Jiri Pirko <j...@mellanox.com>
---
.../selftests/net/forwarding/mirror_gre_neigh.sh | 101 +++++++++++++++++++++
1 file changed, 101 insertions(+)
create mode 100755 tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
diff --git a/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
b/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
new file mode 100755
index 0000000..1ca29ba
--- /dev/null
+++ b/tools/testing/selftests/net/forwarding/mirror_gre_neigh.sh
@@ -0,0 +1,101 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+# This test uses standard topology for testing gretap. See
+# mirror_gre_topo_lib.sh for more details.
+#
+# Test for mirroring to gretap and ip6gretap, such that the neighbor entry for
+# the tunnel remote address has invalid address at the time that the mirroring
+# is set up. Later on, the neighbor is deleted and it is expected to be
+# reinitialized using the usual ARP process, and the mirroring offload updated.
+
+NUM_NETIFS=6
+source lib.sh
+source mirror_lib.sh
+source mirror_gre_lib.sh
+source mirror_gre_topo_lib.sh
+
+setup_prepare()
+{
+ h1=${NETIFS[p1]}
+ swp1=${NETIFS[p2]}
+
+ swp2=${NETIFS[p3]}
+ h2=${NETIFS[p4]}
+
+ swp3=${NETIFS[p5]}
+ h3=${NETIFS[p6]}
+
+ vrf_prepare
+ mirror_gre_topo_create
+
+ ip address add dev $swp3 192.0.2.129/28
+ ip address add dev $h3 192.0.2.130/28
+
+ ip address add dev $swp3 2001:db8:2::1/64
+ ip address add dev $h3 2001:db8:2::2/64
+}
+
+cleanup()
+{
+ pre_cleanup
+
+ ip address del dev $h3 2001:db8:2::2/64
+ ip address del dev $swp3 2001:db8:2::1/64
+
+ ip address del dev $h3 192.0.2.130/28
+ ip address del dev $swp3 192.0.2.129/28
+
+ mirror_gre_topo_destroy
+ vrf_cleanup
+}
+
+test_span_gre_neigh()
+{
+ local addr=$1; shift
+ local tundev=$1; shift
+ local direction=$1; shift
+ local what=$1; shift
+
+ RET=0
+
+ ip neigh replace dev $swp3 $addr lladdr 00:11:22:33:44:55
+ mirror_install $swp1 $direction $tundev "matchall $tcflags"
+ fail_test_span_gre_dir $tundev ingress
+ ip neigh del dev $swp3 $addr
+ quick_test_span_gre_dir $tundev ingress
+ mirror_uninstall $swp1 $direction
+
+ log_test "$direction $what: neighbor change ($tcflags)"
+}
+
+test_all()
+{
+ slow_path_trap_install $swp1 ingress
+ slow_path_trap_install $swp1 egress
+
+ test_span_gre_neigh 192.0.2.130 gt4 ingress "mirror to gretap"
+ test_span_gre_neigh 192.0.2.130 gt4 egress "mirror to gretap"
+ test_span_gre_neigh 2001:db8:2::2 gt6 ingress "mirror to ip6gretap"
+ test_span_gre_neigh 2001:db8:2::2 gt6 egress "mirror to ip6gretap"
+
+ slow_path_trap_uninstall $swp1 egress
+ slow_path_trap_uninstall $swp1 ingress
+}
+
+trap cleanup EXIT
+
+setup_prepare
+setup_wait
+
+tcflags="skip_hw"
+test_all
+
+if ! tc_offload_check; then
+ echo "WARN: Could not test offloaded functionality"
+else
+ tcflags="skip_sw"
+ test_all
+fi
+
+exit $EXIT_STATUS
--
2.4.11
