selftests: mptcp: timeout testcases for multi addresses

This patch added the timeout testcases for multi addresses, valid and
invalid.

These testcases need to transmit 8 ADD_ADDRs, so add a new speed level
'least' to set 10 to mptcp_connect to slow down the transmitting process.
The original speed level 'slow' still uses 50.

Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Geliang Tang <geliangtang@gmail.com>

tools/testing/selftests/net/mptcp/mptcp_join.sh

@@ -239,8 +239,10 @@ do_transfer()
 
 	if [ $speed = "fast" ]; then
 		mptcp_connect="./mptcp_connect -j"
-	else
-		mptcp_connect="./mptcp_connect -r"
+	elif [ $speed = "slow" ]; then
+		mptcp_connect="./mptcp_connect -r 50"
+	elif [ $speed = "least" ]; then
+		mptcp_connect="./mptcp_connect -r 10"
 	fi
 
 	local local_addr
@@ -802,6 +804,26 @@ add_addr_timeout_tests()
 	run_tests $ns1 $ns2 dead:beef:1::1 0 0 0 slow
 	chk_join_nr "signal address, ADD_ADDR6 timeout" 1 1 1
 	chk_add_nr 4 0
+
+	# signal addresses timeout
+	reset_with_add_addr_timeout
+	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.3.1 flags signal
+	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	run_tests $ns1 $ns2 10.0.1.1 0 0 0 least
+	chk_join_nr "signal addresses, ADD_ADDR timeout" 2 2 2
+	chk_add_nr 8 0
+
+	# signal invalid addresses timeout
+	reset_with_add_addr_timeout
+	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.12.1 flags signal
+	ip netns exec $ns1 ./pm_nl_ctl add 10.0.3.1 flags signal
+	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	run_tests $ns1 $ns2 10.0.1.1 0 0 0 least
+	chk_join_nr "invalid address, ADD_ADDR timeout" 1 1 1
+	chk_add_nr 8 0
 }
 
 remove_tests()