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Message-Id: <20210109004802.341602-9-mathew.j.martineau@linux.intel.com>
Date:   Fri,  8 Jan 2021 16:48:02 -0800
From:   Mat Martineau <mathew.j.martineau@...ux.intel.com>
To:     netdev@...r.kernel.org
Cc:     Geliang Tang <geliangtang@...il.com>, davem@...emloft.net,
        kuba@...nel.org, mptcp@...ts.01.org,
        Mat Martineau <mathew.j.martineau@...ux.intel.com>
Subject: [PATCH net-next 8/8] selftests: mptcp: add the MP_PRIO testcases

From: Geliang Tang <geliangtang@...il.com>

This patch added the MP_PRIO testcases:

Add a new argument bkup for run_tests and do_transfer, it can be set as
"backup" or "nobackup", the default value is "".

Add a new function chk_prio_nr to check the MP_PRIO related MIB counters.

The output looks like this:

29 single subflow, backup      syn[ ok ] - synack[ ok ] - ack[ ok ]
                               ptx[ ok ] - prx   [ ok ]
30 single address, backup      syn[ ok ] - synack[ ok ] - ack[ ok ]
                               add[ ok ] - echo  [ ok ]
                               ptx[ ok ] - prx   [ ok ]

Signed-off-by: Geliang Tang <geliangtang@...il.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@...ux.intel.com>
---
 .../testing/selftests/net/mptcp/mptcp_join.sh | 72 ++++++++++++++++++-
 1 file changed, 71 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 9aa9624cff97..f74cd993b168 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -212,6 +212,7 @@ do_transfer()
 	rm_nr_ns1="$7"
 	rm_nr_ns2="$8"
 	speed="$9"
+	bkup="${10}"
 
 	port=$((10000+$TEST_COUNT))
 	TEST_COUNT=$((TEST_COUNT+1))
@@ -297,6 +298,18 @@ do_transfer()
 		fi
 	fi
 
+	if [ ! -z $bkup ]; then
+		sleep 1
+		for netns in "$ns1" "$ns2"; do
+			dump=(`ip netns exec $netns ./pm_nl_ctl dump`)
+			if [ ${#dump[@]} -gt 0 ]; then
+				addr=${dump[${#dump[@]} - 1]}
+				backup="ip netns exec $netns ./pm_nl_ctl set $addr flags $bkup"
+				$backup
+			fi
+		done
+	fi
+
 	wait $cpid
 	retc=$?
 	wait $spid
@@ -358,6 +371,7 @@ run_tests()
 	rm_nr_ns1="${5:-0}"
 	rm_nr_ns2="${6:-0}"
 	speed="${7:-fast}"
+	bkup="${8:-""}"
 	lret=0
 	oldin=""
 
@@ -372,7 +386,7 @@ run_tests()
 	fi
 
 	do_transfer ${listener_ns} ${connector_ns} MPTCP MPTCP ${connect_addr} \
-		${test_linkfail} ${rm_nr_ns1} ${rm_nr_ns2} ${speed}
+		${test_linkfail} ${rm_nr_ns1} ${rm_nr_ns2} ${speed} ${bkup}
 	lret=$?
 
 	if [ "$test_linkfail" -eq 1 ];then
@@ -509,6 +523,43 @@ chk_rm_nr()
 	fi
 }
 
+chk_prio_nr()
+{
+	local mp_prio_nr_tx=$1
+	local mp_prio_nr_rx=$2
+	local count
+	local dump_stats
+
+	printf "%-39s %s" " " "ptx"
+	count=`ip netns exec $ns1 nstat -as | grep MPTcpExtMPPrioTx | awk '{print $2}'`
+	[ -z "$count" ] && count=0
+	if [ "$count" != "$mp_prio_nr_tx" ]; then
+		echo "[fail] got $count MP_PRIO[s] TX expected $mp_prio_nr_tx"
+		ret=1
+		dump_stats=1
+	else
+		echo -n "[ ok ]"
+	fi
+
+	echo -n " - prx   "
+	count=`ip netns exec $ns1 nstat -as | grep MPTcpExtMPPrioRx | awk '{print $2}'`
+	[ -z "$count" ] && count=0
+	if [ "$count" != "$mp_prio_nr_rx" ]; then
+		echo "[fail] got $count MP_PRIO[s] RX expected $mp_prio_nr_rx"
+		ret=1
+		dump_stats=1
+	else
+		echo "[ ok ]"
+	fi
+
+	if [ "${dump_stats}" = 1 ]; then
+		echo Server ns stats
+		ip netns exec $ns1 nstat -as | grep MPTcp
+		echo Client ns stats
+		ip netns exec $ns2 nstat -as | grep MPTcp
+	fi
+}
+
 sin=$(mktemp)
 sout=$(mktemp)
 cin=$(mktemp)
@@ -739,6 +790,25 @@ chk_join_nr "remove subflow and signal IPv6" 2 2 2
 chk_add_nr 1 1
 chk_rm_nr 1 1
 
+# single subflow, backup
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow,backup
+run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow nobackup
+chk_join_nr "single subflow, backup" 1 1 1
+chk_prio_nr 0 1
+
+# single address, backup
+reset
+ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
+chk_join_nr "single address, backup" 1 1 1
+chk_add_nr 1 1
+chk_prio_nr 1 0
+
 # single subflow, syncookies
 reset_with_cookies
 ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-- 
2.30.0

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