selftests: mlxsw: vxlan: Add test for error path
Test that when two VXLAN tunnels with conflicting configurations (i.e.,
different TTL) are enslaved to the same VLAN-aware bridge, then the
enslavement of a port to the bridge is denied.
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
index 56b95fd..15eb0dc 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
@@ -854,6 +854,26 @@
bridge vlan del vid 10 dev vxlan20
bridge vlan add vid 20 dev vxlan20 pvid untagged
+ # Test that when two VXLAN tunnels with conflicting configurations
+ # (i.e., different TTL) are enslaved to the same VLAN-aware bridge,
+ # then the enslavement of a port to the bridge is denied.
+
+ # Use the offload indication of the local route to ensure the VXLAN
+ # configuration was correctly rollbacked.
+ ip address add 198.51.100.1/32 dev lo
+
+ ip link set dev vxlan10 type vxlan ttl 10
+ ip link set dev $swp1 master br0 &> /dev/null
+ check_fail $?
+
+ ip route show table local | grep 198.51.100.1 | grep -q offload
+ check_fail $?
+
+ log_test "vlan-aware - failed enslavement to bridge due to conflict"
+
+ ip link set dev vxlan10 type vxlan ttl 20
+ ip address del 198.51.100.1/32 dev lo
+
ip link del dev vxlan20
ip link del dev vxlan10
ip link del dev br0
