[MPTCP][PATCH v7 mptcp-next 5/6] selftests: mptcp: add fullmesh testcases

[Geliang Tang <geliangtang@gmail.com>]

From: Geliang Tang <geliangtang@xiaomi.com>

This patch added the testcases for the fullmesh address flag of the path
manager.

Reuse the above 10 address numbers for the fullmesh test.

Signed-off-by: Geliang Tang <geliangtang@xiaomi.com>
---
 .../testing/selftests/net/mptcp/mptcp_join.sh | 66 ++++++++++++++++++-
 1 file changed, 63 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 937e861e9490..cb5f9a43baa1 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -367,7 +367,13 @@ do_transfer()
 	fi
 
 	if [ $addr_nr_ns2 -gt 0 ]; then
-		let add_nr_ns2=addr_nr_ns2
+		if [ $addr_nr_ns2 -gt 10 ]; then
+			let add_nr_ns2=addr_nr_ns2-10
+			flags=subflow,fullmesh
+		else
+			let add_nr_ns2=addr_nr_ns2
+			flags=subflow
+		fi
 		counter=3
 		sleep 1
 		while [ $add_nr_ns2 -gt 0 ]; do
@@ -377,7 +383,7 @@ do_transfer()
 			else
 				addr="10.0.$counter.2"
 			fi
-			ip netns exec $ns2 ./pm_nl_ctl add $addr flags subflow
+			ip netns exec $ns2 ./pm_nl_ctl add $addr flags $flags
 			let counter+=1
 			let add_nr_ns2-=1
 		done
@@ -1697,6 +1703,55 @@ deny_join_id0_tests()
 	chk_join_nr "subflow and address allow join id0 2" 1 1 1
 }
 
+fullmesh_tests()
+{
+	# fullmesh 1
+	# 2 fullmesh addrs in ns2, added before the connection,
+	# 1 non-fullmesh addr in ns1, added during the connection.
+	reset
+	ip netns exec $ns1 ./pm_nl_ctl limits 0 4
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 4
+	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow,fullmesh
+	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow,fullmesh
+	run_tests $ns1 $ns2 10.0.1.1 0 1 0 slow
+	chk_join_nr "fullmesh test 2x1" 4 4 4
+	chk_add_nr 1 1
+
+	# fullmesh 2
+	# 1 non-fullmesh addr in ns1, added before the connection,
+	# 1 fullmesh addr in ns2, added during the connection.
+	reset
+	ip netns exec $ns1 ./pm_nl_ctl limits 1 3
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	run_tests $ns1 $ns2 10.0.1.1 0 0 11 slow # 11 here meams creating 1 fullmesh subflow
+	chk_join_nr "fullmesh test 1x1" 3 3 3
+	chk_add_nr 1 1
+
+	# fullmesh 3
+	# 1 non-fullmesh addr in ns1, added before the connection,
+	# 2 fullmesh addrs in ns2, added during the connection.
+	reset
+	ip netns exec $ns1 ./pm_nl_ctl limits 2 5
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 5
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	run_tests $ns1 $ns2 10.0.1.1 0 0 12 slow # 12 here meams creating 2 fullmesh subflows
+	chk_join_nr "fullmesh test 1x2" 5 5 5
+	chk_add_nr 1 1
+
+	# fullmesh 4
+	# 1 non-fullmesh addr in ns1, added before the connection,
+	# 2 fullmesh addrs in ns2, added during the connection,
+	# limit max_subflows to 4.
+	reset
+	ip netns exec $ns1 ./pm_nl_ctl limits 2 4
+	ip netns exec $ns2 ./pm_nl_ctl limits 1 4
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	run_tests $ns1 $ns2 10.0.1.1 0 0 12 slow
+	chk_join_nr "fullmesh test 1x2, limited" 4 4 4
+	chk_add_nr 1 1
+}
+
 all_tests()
 {
 	subflows_tests
@@ -1712,6 +1767,7 @@ all_tests()
 	syncookies_tests
 	checksum_tests
 	deny_join_id0_tests
+	fullmesh_tests
 }
 
 usage()
@@ -1730,6 +1786,7 @@ usage()
 	echo "  -k syncookies_tests"
 	echo "  -S checksum_tests"
 	echo "  -d deny_join_id0_tests"
+	echo "  -m fullmesh_tests"
 	echo "  -c capture pcap files"
 	echo "  -C enable data checksum"
 	echo "  -h help"
@@ -1765,7 +1822,7 @@ if [ $do_all_tests -eq 1 ]; then
 	exit $ret
 fi
 
-while getopts 'fsltra64bpkdchCS' opt; do
+while getopts 'fsltra64bpkdmchCS' opt; do
 	case $opt in
 		f)
 			subflows_tests
@@ -1806,6 +1863,9 @@ while getopts 'fsltra64bpkdchCS' opt; do
 		d)
 			deny_join_id0_tests
 			;;
+		m)
+			fullmesh_tests
+			;;
 		c)
 			;;
 		C)
-- 
2.31.1