netdev - [PATCH net-next 14/16] selftests: net: bridge: add test for igmpv3 exc -> block report

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Date:   Tue, 27 Oct 2020 20:59:32 +0200
From:   Nikolay Aleksandrov <razor@...ckwall.org>
To:     netdev@...r.kernel.org
Cc:     roopa@...dia.com, kuba@...nel.org,
        bridge@...ts.linux-foundation.org,
        Nikolay Aleksandrov <nikolay@...dia.com>
Subject: [PATCH net-next 14/16] selftests: net: bridge: add test for igmpv3 exc -> block report

From: Nikolay Aleksandrov <nikolay@...dia.com>

The test checks for the following case:
   state          report        result                  action
 EXCLUDE (X,Y)  BLOCK (A)     EXCLUDE (X+(A-Y),Y)      (A-X-Y)=Group Timer
                                                       Send Q(G,A-Y)

Signed-off-by: Nikolay Aleksandrov <nikolay@...dia.com>
---
 .../selftests/net/forwarding/bridge_igmp.sh   | 30 ++++++++++++++++++-
 1 file changed, 29 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/forwarding/bridge_igmp.sh b/tools/testing/selftests/net/forwarding/bridge_igmp.sh
index 3772c7a066c9..45c5619666d8 100755
--- a/tools/testing/selftests/net/forwarding/bridge_igmp.sh
+++ b/tools/testing/selftests/net/forwarding/bridge_igmp.sh
@@ -3,7 +3,7 @@
 
 ALL_TESTS="v2reportleave_test v3include_test v3inc_allow_test v3inc_is_include_test \
 	   v3inc_is_exclude_test v3inc_to_exclude_test v3exc_allow_test v3exc_is_include_test \
-	   v3exc_is_exclude_test v3exc_to_exclude_test v3inc_block_test"
+	   v3exc_is_exclude_test v3exc_to_exclude_test v3inc_block_test v3exc_block_test"
 NUM_NETIFS=4
 CHECK_TC="yes"
 TEST_GROUP="239.10.10.10"
@@ -546,6 +546,34 @@ v3inc_block_test()
 	v3cleanup $swp1 $TEST_GROUP
 }
 
+v3exc_block_test()
+{
+	RET=0
+	local X=("192.0.2.1" "192.0.2.2" "192.0.2.30")
+	local Y=("192.0.2.20" "192.0.2.21")
+
+	v3exclude_prepare $h1 $ALL_MAC $ALL_GROUP
+
+	ip link set dev br0 type bridge mcast_last_member_interval 500
+	check_err $? "Could not change mcast_last_member_interval to 5s"
+
+	$MZ $h1 -c 1 -b $ALL_MAC -B $ALL_GROUP -t ip "proto=2,p=$MZPKT_BLOCK" -q
+	sleep 1
+	check_sg_entries "block" "${X[@]}" "${Y[@]}"
+
+	check_sg_state 0 "${X[@]}"
+	check_sg_state 1 "${Y[@]}"
+
+	check_sg_fwding 1 "${X[@]}" 192.0.2.100
+	check_sg_fwding 0 "${Y[@]}"
+
+	log_test "IGMPv3 report $TEST_GROUP exclude -> block"
+
+	ip link set dev br0 type bridge mcast_last_member_interval 100
+
+	v3cleanup $swp1 $TEST_GROUP
+}
+
 trap cleanup EXIT
 
 setup_prepare
-- 
2.25.4