selftests: net: bridge: add vlan mcast_router tests

Add tests for the new per-port/vlan mcast_router option, verify that
unknown multicast packets are flooded only to router ports.

TEST: Port vlan 10 option mcast_router default value                [ OK ]
TEST: Port vlan 10 mcast_router option changed to 2                 [ OK ]
TEST: Flood unknown vlan multicast packets to router port only      [ OK ]

Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

diff --git a/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh b/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
index fbc7f5045b260116588a161a453478dede7b346f..898a70f4d2266cf2da90c3c8ad52e2e03191ed4e 100755 (executable)
--- a/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
+++ b/tools/testing/selftests/net/forwarding/bridge_vlan_mcast.sh
@@ -3,7 +3,8 @@
 
 ALL_TESTS="vlmc_control_test vlmc_querier_test vlmc_igmp_mld_version_test \
           vlmc_last_member_test vlmc_startup_query_test vlmc_membership_test \
-          vlmc_querier_intvl_test vlmc_query_intvl_test vlmc_query_response_intvl_test"
+          vlmc_querier_intvl_test vlmc_query_intvl_test vlmc_query_response_intvl_test \
+          vlmc_router_port_test"
 NUM_NETIFS=4
 CHECK_TC="yes"
 TEST_GROUP="239.10.10.10"
@@ -471,6 +472,57 @@ vlmc_query_response_intvl_test()
        bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 1000
 }
 
+vlmc_router_port_test()
+{
+       RET=0
+       local goutput=`bridge -j -d vlan show`
+       echo -n $goutput |
+               jq -e ".[] | select(.ifname == \"$swp1\" and \
+                                   .vlans[].vlan == 10)" &>/dev/null
+       check_err $? "Could not find port vlan 10's options"
+
+       echo -n $goutput |
+               jq -e ".[] | select(.ifname == \"$swp1\" and \
+                                   .vlans[].vlan == 10 and \
+                                   .vlans[].mcast_router == 1)" &>/dev/null
+       check_err $? "Wrong default port mcast_router option value"
+       log_test "Port vlan 10 option mcast_router default value"
+
+       RET=0
+       bridge vlan set vid 10 dev $swp1 mcast_router 2
+       check_err $? "Could not set port vlan 10's mcast_router option"
+       log_test "Port vlan 10 mcast_router option changed to 2"
+
+       RET=0
+       tc filter add dev $swp1 egress pref 10 prot 802.1Q \
+               flower vlan_id 10 vlan_ethtype ipv4 dst_ip 239.1.1.1 ip_proto udp action pass
+       tc filter add dev $swp2 egress pref 10 prot 802.1Q \
+               flower vlan_id 10 vlan_ethtype ipv4 dst_ip 239.1.1.1 ip_proto udp action pass
+       bridge vlan set vid 10 dev $swp2 mcast_router 0
+       # we need to enable querier and disable query response interval to
+       # make sure packets are flooded only to router ports
+       bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_querier 1 \
+                                             mcast_query_response_interval 0
+       bridge vlan add vid 10 dev br0 self
+       sleep 1
+       mausezahn br0 -Q 10 -c 10 -p 128 -b 01:00:5e:01:01:01 -B 239.1.1.1 \
+                       -t udp "dp=1024" &>/dev/null
+       local swp1_tcstats=$(tc_rule_stats_get $swp1 10 egress)
+       if [[ $swp1_tcstats != 10 ]]; then
+               check_err 1 "Wrong number of vlan 10 multicast packets flooded"
+       fi
+       local swp2_tcstats=$(tc_rule_stats_get $swp2 10 egress)
+       check_err $swp2_tcstats "Vlan 10 multicast packets flooded to non-router port"
+       log_test "Flood unknown vlan multicast packets to router port only"
+
+       tc filter del dev $swp2 egress pref 10
+       tc filter del dev $swp1 egress pref 10
+       bridge vlan del vid 10 dev br0 self
+       bridge vlan global set vid 10 dev br0 mcast_snooping 1 mcast_query_response_interval 1000
+       bridge vlan set vid 10 dev $swp2 mcast_router 1
+       bridge vlan set vid 10 dev $swp1 mcast_router 1
+}
+
 trap cleanup EXIT
 
 setup_prepare