selftests: net: bridge: add test for mldv2 inc -> is_include report

The test checks for the following case:
   Router State  Report Received  New Router State     Actions
   INCLUDE (A)       IS_IN (B)     INCLUDE (A+B)       (B)=MALI
Signed-off-by: Nikolay Aleksandrov <nikolay@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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

 #!/bin/bash
 # SPDX-License-Identifier: GPL-2.0
 
-ALL_TESTS="mldv2include_test mldv2inc_allow_test"
+ALL_TESTS="mldv2include_test mldv2inc_allow_test mldv2inc_is_include_test"
 NUM_NETIFS=4
 CHECK_TC="yes"
 TEST_GROUP="ff02::cc"
@@ -13,6 +13,12 @@ MZPKT_IS_INC="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:54:00:01:
 00:05:02:00:00:00:00:8f:00:8e:d9:00:00:00:01:01:00:00:03:ff:02:00:00:00:00:00:00:00:00:00:\
 00:00:00:00:cc:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:01:20:01:0d:b8:00:01:00:00:00:\
 00:00:00:00:00:00:02:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:03"
+# MLDv2 is_in report: grp ff02::cc is_include 2001:db8:1::10,2001:db8:1::11,2001:db8:1::12
+MZPKT_IS_INC2="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:54:00:01:fe:80:00:\
+00:00:00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:\
+05:02:00:00:00:00:8f:00:8e:ac:00:00:00:01:01:00:00:03:ff:02:00:00:00:00:00:00:00:00:00:00:00:\
+00:00:cc:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:10:20:01:0d:b8:00:01:00:00:00:00:00:00:\
+00:00:00:11:20:01:0d:b8:00:01:00:00:00:00:00:00:00:00:00:12"
 # MLDv2 allow report: grp ff02::cc allow 2001:db8:1::10,2001:db8:1::11,2001:db8:1::12
 MZPKT_ALLOW="33:33:00:00:00:01:fe:54:00:04:5e:ba:86:dd:60:0a:2d:ae:00:54:00:01:fe:80:00:00:\
 00:00:00:00:fc:54:00:ff:fe:04:5e:ba:ff:02:00:00:00:00:00:00:00:00:00:00:00:00:00:01:3a:00:05:\
@@ -163,6 +169,27 @@ mldv2inc_allow_test()
 	mldv2cleanup $swp1
 }
 
+mldv2inc_is_include_test()
+{
+	RET=0
+	local X=("2001:db8:1::10" "2001:db8:1::11" "2001:db8:1::12")
+
+	mldv2include_prepare $h1
+
+	$MZ $h1 -c 1 $MZPKT_IS_INC2 -q
+	sleep 1
+	brmcast_check_sg_entries "is_include" "${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 report $TEST_GROUP include -> is_include"
+
+	mldv2cleanup $swp1
+}
+
 trap cleanup EXIT
 
 setup_prepare