selftests: net: bridge: add test for mldv2 exclude timeout

Test that when a group in exclude mode expires it changes mode to
include and the blocked entries are deleted.
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

tools/testing/selftests/net/forwarding/bridge_mld.sh

@@ -4,7 +4,7 @@
 ALL_TESTS="mldv2include_test mldv2inc_allow_test mldv2inc_is_include_test mldv2inc_is_exclude_test \
 	   mldv2inc_to_exclude_test mldv2exc_allow_test mldv2exc_is_include_test \
 	   mldv2exc_is_exclude_test mldv2exc_to_exclude_test mldv2inc_block_test \
-	   mldv2exc_block_test"
+	   mldv2exc_block_test mldv2exc_timeout_test"
 NUM_NETIFS=4
 CHECK_TC="yes"
 TEST_GROUP="ff02::cc"
@@ -473,6 +473,52 @@ mldv2exc_block_test()
 	mldv2cleanup $swp1
 }
 
+mldv2exc_timeout_test()
+{
+	RET=0
+	local X=("2001:db8:1::20" "2001:db8:1::30")
+
+	# GMI should be 3 seconds
+	ip link set dev br0 type bridge mcast_query_interval 100 mcast_query_response_interval 100
+
+	mldv2exclude_prepare $h1
+	ip link set dev br0 type bridge mcast_query_interval 500 mcast_query_response_interval 500
+	$MZ $h1 -c 1 $MZPKT_ALLOW2 -q
+	sleep 3
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and .filter_mode == \"include\")" &>/dev/null
+	check_err $? "Wrong *,G entry filter mode"
+
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"2001:db8:1::1\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 2001:db8:1::1 entry still exists"
+	bridge -j -d -s mdb show dev br0 \
+		| jq -e ".[].mdb[] | \
+			 select(.grp == \"$TEST_GROUP\" and \
+				.source_list != null and
+				.source_list[].address == \"2001:db8:1::2\")" &>/dev/null
+	check_fail $? "Wrong *,G entry source list, 2001:db8:1::2 entry still exists"
+
+	brmcast_check_sg_entries "allow" "${X[@]}"
+
+	brmcast_check_sg_state 0 "${X[@]}"
+
+	brmcast_check_sg_fwding 1 "${X[@]}"
+	brmcast_check_sg_fwding 0 2001:db8:1::100
+
+	log_test "MLDv2 group $TEST_GROUP exclude timeout"
+
+	ip link set dev br0 type bridge mcast_query_interval 12500 \
+					mcast_query_response_interval 1000
+
+	mldv2cleanup $swp1
+}
+
 trap cleanup EXIT
 
 setup_prepare