[PATCH RESEND mptcp-next v2 3/9] selftests: mptcp: implement pm_nl_set_limits

Geliang Tang posted 9 patches 4 years, 1 month ago
Maintainers: Jakub Kicinski <kuba@kernel.org>, Shuah Khan <shuah@kernel.org>, Matthieu Baerts <matthieu.baerts@tessares.net>, "David S. Miller" <davem@davemloft.net>, Mat Martineau <mathew.j.martineau@linux.intel.com>
There is a newer version of this series
[PATCH RESEND mptcp-next v2 3/9] selftests: mptcp: implement pm_nl_set_limits
Posted by Geliang Tang 4 years, 1 month ago
This patch implemented a new function named pm_nl_set_limits(), wraped
the PM netlink commands 'ip mptcp' and 'pm_nl_ctl' in it, and used a new
argument 'ip_mptcp' to choose which one to use for the PM limits
setting.

Used this wrapper in all the selftests in mptcp_join.sh instead of using
the pm_nl_ctl commands directly.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 .../testing/selftests/net/mptcp/mptcp_join.sh | 378 +++++++++---------
 1 file changed, 196 insertions(+), 182 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index b8c21d0b8919..d9142ad820e4 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -15,6 +15,7 @@ timeout_test=$((timeout_poll * 2 + 1))
 mptcp_connect=""
 capture=0
 checksum=0
+ip_mptcp=0
 do_all_tests=1
 
 TEST_COUNT=0
@@ -278,6 +279,19 @@ wait_rm_addr()
 	done
 }
 
+pm_nl_set_limits()
+{
+	local ns=$1
+	local nr_addrs=$2
+	local nr_subflows=$3
+
+	if [ $ip_mptcp -eq 1 ]; then
+		ip -n $ns mptcp limits set add_addr_accepted $nr_addrs subflows $nr_subflows
+	else
+		ip netns exec $ns ./pm_nl_ctl limits $nr_addrs $nr_subflows
+	fi
+}
+
 do_transfer()
 {
 	listener_ns="$1"
@@ -1024,32 +1038,32 @@ subflows_tests()
 
 	# subflow limited by client
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 0
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 0
+	pm_nl_set_limits $ns1 0 0
+	pm_nl_set_limits $ns2 0 0
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "single subflow, limited by client" 0 0 0
 
 	# subflow limited by server
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 0
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 0
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "single subflow, limited by server" 1 1 0
 
 	# subflow
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "single subflow" 1 1 1
 
 	# multiple subflows
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
@@ -1057,8 +1071,8 @@ subflows_tests()
 
 	# multiple subflows limited by server
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
@@ -1066,8 +1080,8 @@ subflows_tests()
 
 	# single subflow, dev
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow dev ns2eth3
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "single subflow, dev" 1 1 1
@@ -1078,16 +1092,16 @@ subflows_error_tests()
 	# If a single subflow is configured, and matches the MPC src
 	# address, no additional subflow should be created
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.1.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow
 	chk_join_nr "no MPC reuse with single endpoint" 0 0 0
 
 	# multiple subflows, with subflow creation error
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
 	ip netns exec $ns1 iptables -A INPUT -s 10.0.3.2 -p tcp -j REJECT
@@ -1096,8 +1110,8 @@ subflows_error_tests()
 
 	# multiple subflows, with subflow timeout on MPJ
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
 	ip netns exec $ns1 iptables -A INPUT -s 10.0.3.2 -p tcp -j DROP
@@ -1108,8 +1122,8 @@ subflows_error_tests()
 	# closed subflow (due to reset) is not reused if additional
 	# subflows are added later
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns1 iptables -A INPUT -s 10.0.3.2 -p tcp -j REJECT
 	run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow &
@@ -1139,8 +1153,8 @@ signal_address_tests()
 
 	# accept and use add_addr
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "signal address" 1 1 1
@@ -1152,8 +1166,8 @@ signal_address_tests()
 	# used for 'add_addr' subflow
 	reset
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 1 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "subflow and signal" 2 2 2
@@ -1161,9 +1175,9 @@ signal_address_tests()
 
 	# accept and use add_addr with additional subflows
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+	pm_nl_set_limits $ns1 0 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	pm_nl_set_limits $ns2 1 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
@@ -1172,30 +1186,30 @@ signal_address_tests()
 
 	# signal addresses
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns1 3 3
 	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 $ns1 ./pm_nl_ctl add 10.0.4.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns2 3 3
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "signal addresses" 3 3 3
 	chk_add_nr 3 3
 
 	# signal invalid addresses
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns1 3 3
 	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 $ns1 ./pm_nl_ctl add 10.0.14.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns2 3 3
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "signal invalid addresses" 1 1 1
 	chk_add_nr 3 3
 
 	# signal addresses race test
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 4 4
-	ip netns exec $ns2 ./pm_nl_ctl limits 4 4
+	pm_nl_set_limits $ns1 4 4
+	pm_nl_set_limits $ns2 4 4
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.1.1 flags signal
 	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
@@ -1223,9 +1237,9 @@ link_failure_tests()
 	# active backup and link switch-over.
 	# Let's set some arbitrary (low) virtual link limits.
 	init_shapers
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+	pm_nl_set_limits $ns1 0 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	pm_nl_set_limits $ns2 1 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 dev ns2eth4 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 1
@@ -1237,9 +1251,9 @@ link_failure_tests()
 	# for bidirectional transfer
 	reset
 	init_shapers
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+	pm_nl_set_limits $ns1 0 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	pm_nl_set_limits $ns2 1 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 dev ns2eth4 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 2
@@ -1251,9 +1265,9 @@ link_failure_tests()
 	# will never be used
 	reset
 	init_shapers
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+	pm_nl_set_limits $ns2 1 2
 	export FAILING_LINKS="1"
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow,backup
 	run_tests $ns1 $ns2 10.0.1.1 1
@@ -1265,9 +1279,9 @@ link_failure_tests()
 	# the traffic
 	reset
 	init_shapers
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+	pm_nl_set_limits $ns2 1 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow,backup
 	export FAILING_LINKS="1 2"
 	run_tests $ns1 $ns2 10.0.1.1 1
@@ -1280,9 +1294,9 @@ link_failure_tests()
 	# for bidirectional transfer
 	reset
 	init_shapers
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 dev ns1eth2 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	pm_nl_set_limits $ns2 1 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 dev ns2eth3 flags subflow,backup
 	run_tests $ns1 $ns2 10.0.1.1 2
 	chk_join_nr "backup flow used, bidi, link failure" 2 2 2
@@ -1295,8 +1309,8 @@ add_addr_timeout_tests()
 {
 	# add_addr timeout
 	reset_with_add_addr_timeout
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow
 	chk_join_nr "signal address, ADD_ADDR timeout" 1 1 1
@@ -1304,8 +1318,8 @@ add_addr_timeout_tests()
 
 	# add_addr timeout IPv6
 	reset_with_add_addr_timeout 6
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add dead:beef:2::1 flags signal
 	run_tests $ns1 $ns2 dead:beef:1::1 0 0 0 slow
 	chk_join_nr "signal address, ADD_ADDR6 timeout" 1 1 1
@@ -1313,20 +1327,20 @@ add_addr_timeout_tests()
 
 	# signal addresses timeout
 	reset_with_add_addr_timeout
-	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
+	pm_nl_set_limits $ns1 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
+	pm_nl_set_limits $ns2 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
+	pm_nl_set_limits $ns1 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
+	pm_nl_set_limits $ns2 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
@@ -1336,8 +1350,8 @@ remove_tests()
 {
 	# single subflow, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 0 -1 slow
 	chk_join_nr "remove single subflow" 1 1 1
@@ -1345,8 +1359,8 @@ remove_tests()
 
 	# multiple subflows, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 0 -2 slow
@@ -1355,9 +1369,9 @@ remove_tests()
 
 	# single address, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 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
+	pm_nl_set_limits $ns2 1 1
 	run_tests $ns1 $ns2 10.0.1.1 0 -1 0 slow
 	chk_join_nr "remove single address" 1 1 1
 	chk_add_nr 1 1
@@ -1365,9 +1379,9 @@ remove_tests()
 
 	# subflow and signal, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+	pm_nl_set_limits $ns2 1 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 -1 -1 slow
 	chk_join_nr "remove subflow and signal" 2 2 2
@@ -1376,9 +1390,9 @@ remove_tests()
 
 	# subflows and signal, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+	pm_nl_set_limits $ns1 0 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	pm_nl_set_limits $ns2 1 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 -1 -2 slow
@@ -1388,11 +1402,11 @@ remove_tests()
 
 	# addresses remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns1 3 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal id 250
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.3.1 flags signal
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.4.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns2 3 3
 	run_tests $ns1 $ns2 10.0.1.1 0 -3 0 slow
 	chk_join_nr "remove addresses" 3 3 3
 	chk_add_nr 3 3
@@ -1400,11 +1414,11 @@ remove_tests()
 
 	# invalid addresses remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns1 3 3
 	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 $ns1 ./pm_nl_ctl add 10.0.14.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns2 3 3
 	run_tests $ns1 $ns2 10.0.1.1 0 -3 0 slow
 	chk_join_nr "remove invalid addresses" 1 1 1
 	chk_add_nr 3 3
@@ -1412,9 +1426,9 @@ remove_tests()
 
 	# subflows and signal, flush
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+	pm_nl_set_limits $ns1 0 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	pm_nl_set_limits $ns2 1 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 -8 -8 slow
@@ -1424,8 +1438,8 @@ remove_tests()
 
 	# subflows flush
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 3 3
-	ip netns exec $ns2 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns1 3 3
+	pm_nl_set_limits $ns2 3 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow id 150
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
@@ -1435,11 +1449,11 @@ remove_tests()
 
 	# addresses flush
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns1 3 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal id 250
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.3.1 flags signal
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.4.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns2 3 3
 	run_tests $ns1 $ns2 10.0.1.1 0 -8 -8 slow
 	chk_join_nr "flush addresses" 3 3 3
 	chk_add_nr 3 3
@@ -1447,11 +1461,11 @@ remove_tests()
 
 	# invalid addresses flush
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns1 3 3
 	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 $ns1 ./pm_nl_ctl add 10.0.14.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 3 3
+	pm_nl_set_limits $ns2 3 3
 	run_tests $ns1 $ns2 10.0.1.1 0 -8 0 slow
 	chk_join_nr "flush invalid addresses" 1 1 1
 	chk_add_nr 3 3
@@ -1459,8 +1473,8 @@ remove_tests()
 
 	# remove id 0 subflow
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 0 -9 slow
 	chk_join_nr "remove id 0 subflow" 1 1 1
@@ -1468,9 +1482,9 @@ remove_tests()
 
 	# remove id 0 address
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 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
+	pm_nl_set_limits $ns2 1 1
 	run_tests $ns1 $ns2 10.0.1.1 0 -9 0 slow
 	chk_join_nr "remove id 0 address" 1 1 1
 	chk_add_nr 1 1
@@ -1481,37 +1495,37 @@ add_tests()
 {
 	# add single subflow
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	run_tests $ns1 $ns2 10.0.1.1 0 0 1 slow
 	chk_join_nr "add single subflow" 1 1 1
 
 	# add signal address
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	run_tests $ns1 $ns2 10.0.1.1 0 1 0 slow
 	chk_join_nr "add signal address" 1 1 1
 	chk_add_nr 1 1
 
 	# add multiple subflows
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	run_tests $ns1 $ns2 10.0.1.1 0 0 2 slow
 	chk_join_nr "add multiple subflows" 2 2 2
 
 	# add multiple subflows IPv6
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	run_tests $ns1 $ns2 dead:beef:1::1 0 0 2 slow
 	chk_join_nr "add multiple subflows IPv6" 2 2 2
 
 	# add multiple addresses IPv6
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 2 2
 	run_tests $ns1 $ns2 dead:beef:1::1 0 2 0 slow
 	chk_join_nr "add multiple addresses IPv6" 2 2 2
 	chk_add_nr 2 2
@@ -1521,8 +1535,8 @@ ipv6_tests()
 {
 	# subflow IPv6
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add dead:beef:3::2 flags subflow
 	run_tests $ns1 $ns2 dead:beef:1::1 0 0 0 slow
 	chk_join_nr "single subflow IPv6" 1 1 1
@@ -1536,18 +1550,18 @@ ipv6_tests()
 
 	# signal address IPv6
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
 	ip netns exec $ns1 ./pm_nl_ctl add dead:beef:2::1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns2 1 1
 	run_tests $ns1 $ns2 dead:beef:1::1 0 0 0 slow
 	chk_join_nr "single address IPv6" 1 1 1
 	chk_add_nr 1 1
 
 	# single address IPv6, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
 	ip netns exec $ns1 ./pm_nl_ctl add dead:beef:2::1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns2 1 1
 	run_tests $ns1 $ns2 dead:beef:1::1 0 -1 0 slow
 	chk_join_nr "remove single address IPv6" 1 1 1
 	chk_add_nr 1 1
@@ -1555,9 +1569,9 @@ ipv6_tests()
 
 	# subflow and signal IPv6, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
 	ip netns exec $ns1 ./pm_nl_ctl add dead:beef:2::1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+	pm_nl_set_limits $ns2 1 2
 	ip netns exec $ns2 ./pm_nl_ctl add dead:beef:3::2 flags subflow
 	run_tests $ns1 $ns2 dead:beef:1::1 0 -1 -1 slow
 	chk_join_nr "remove subflow and signal IPv6" 2 2 2
@@ -1569,16 +1583,16 @@ v4mapped_tests()
 {
 	# subflow IPv4-mapped to IPv4-mapped
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add "::ffff:10.0.3.2" flags subflow
 	run_tests $ns1 $ns2 "::ffff:10.0.1.1"
 	chk_join_nr "single subflow IPv4-mapped" 1 1 1
 
 	# signal address IPv4-mapped with IPv4-mapped sk
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add "::ffff:10.0.2.1" flags signal
 	run_tests $ns1 $ns2 "::ffff:10.0.1.1"
 	chk_join_nr "signal address IPv4-mapped" 1 1 1
@@ -1586,16 +1600,16 @@ v4mapped_tests()
 
 	# subflow v4-map-v6
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 "::ffff:10.0.1.1"
 	chk_join_nr "single subflow v4-map-v6" 1 1 1
 
 	# signal address v4-map-v6
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	run_tests $ns1 $ns2 "::ffff:10.0.1.1"
 	chk_join_nr "signal address v4-map-v6" 1 1 1
@@ -1603,16 +1617,16 @@ v4mapped_tests()
 
 	# subflow v6-map-v4
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add "::ffff:10.0.3.2" flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "single subflow v6-map-v4" 1 1 1
 
 	# signal address v6-map-v4
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add "::ffff:10.0.2.1" flags signal
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "signal address v6-map-v4" 1 1 1
@@ -1620,24 +1634,24 @@ v4mapped_tests()
 
 	# no subflow IPv6 to v4 address
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add dead:beef:2::2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "no JOIN with diff families v4-v6" 0 0 0
 
 	# no subflow IPv6 to v4 address even if v6 has a valid v4 at the end
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add dead:beef:2::10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "no JOIN with diff families v4-v6-2" 0 0 0
 
 	# no subflow IPv4 to v6 address, no need to slow down too then
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 dead:beef:1::1
 	chk_join_nr "no JOIN with diff families v6-v4" 0 0 0
@@ -1647,8 +1661,8 @@ backup_tests()
 {
 	# single subflow, backup
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 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
@@ -1656,9 +1670,9 @@ backup_tests()
 
 	# single address, backup
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 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
+	pm_nl_set_limits $ns2 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
@@ -1669,8 +1683,8 @@ add_addr_ports_tests()
 {
 	# signal address with port
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal port 10100
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "signal address with port" 1 1 1
@@ -1679,8 +1693,8 @@ add_addr_ports_tests()
 	# subflow and signal with port
 	reset
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal port 10100
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 1 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "subflow and signal with port" 2 2 2
@@ -1688,9 +1702,9 @@ add_addr_ports_tests()
 
 	# single address with port, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal port 10100
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns2 1 1
 	run_tests $ns1 $ns2 10.0.1.1 0 -1 0 slow
 	chk_join_nr "remove single address with port" 1 1 1
 	chk_add_nr 1 1 1
@@ -1698,9 +1712,9 @@ add_addr_ports_tests()
 
 	# subflow and signal with port, remove
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal port 10100
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+	pm_nl_set_limits $ns2 1 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 -1 -1 slow
 	chk_join_nr "remove subflow and signal with port" 2 2 2
@@ -1709,9 +1723,9 @@ add_addr_ports_tests()
 
 	# subflows and signal with port, flush
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+	pm_nl_set_limits $ns1 0 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal port 10100
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	pm_nl_set_limits $ns2 1 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 -8 -2 slow
@@ -1721,20 +1735,20 @@ add_addr_ports_tests()
 
 	# multiple addresses with port
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
+	pm_nl_set_limits $ns1 2 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal port 10100
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.3.1 flags signal port 10100
-	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	pm_nl_set_limits $ns2 2 2
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "multiple addresses with port" 2 2 2
 	chk_add_nr 2 2 2
 
 	# multiple addresses with ports
 	reset
-	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
+	pm_nl_set_limits $ns1 2 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal port 10100
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.3.1 flags signal port 10101
-	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	pm_nl_set_limits $ns2 2 2
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "multiple addresses with ports" 2 2 2
 	chk_add_nr 2 2 2
@@ -1744,16 +1758,16 @@ syncookies_tests()
 {
 	# single subflow, syncookies
 	reset_with_cookies
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "single subflow with syn cookies" 1 1 1
 
 	# multiple subflows with syn cookies
 	reset_with_cookies
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
@@ -1761,8 +1775,8 @@ syncookies_tests()
 
 	# multiple subflows limited by server
 	reset_with_cookies
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.2.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
@@ -1770,8 +1784,8 @@ syncookies_tests()
 
 	# test signal address with cookies
 	reset_with_cookies
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "signal address with syn cookies" 1 1 1
@@ -1780,8 +1794,8 @@ syncookies_tests()
 	# test cookie with subflow and signal
 	reset_with_cookies
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 1 2
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "subflow and signal w cookies" 2 2 2
@@ -1789,9 +1803,9 @@ syncookies_tests()
 
 	# accept and use add_addr with additional subflows
 	reset_with_cookies
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 3
+	pm_nl_set_limits $ns1 0 3
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 3
+	pm_nl_set_limits $ns2 1 3
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.4.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
@@ -1803,29 +1817,29 @@ checksum_tests()
 {
 	# checksum test 0 0
 	reset_with_checksum 0 0
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_csum_nr "checksum test 0 0"
 
 	# checksum test 1 1
 	reset_with_checksum 1 1
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_csum_nr "checksum test 1 1"
 
 	# checksum test 0 1
 	reset_with_checksum 0 1
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_csum_nr "checksum test 0 1"
 
 	# checksum test 1 0
 	reset_with_checksum 1 0
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_csum_nr "checksum test 1 0"
 }
@@ -1834,16 +1848,16 @@ deny_join_id0_tests()
 {
 	# subflow allow join id0 ns1
 	reset_with_allow_join_id0 1 0
-	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 1 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "single subflow allow join id0 ns1" 1 1 1
 
 	# subflow allow join id0 ns2
 	reset_with_allow_join_id0 0 1
-	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 1 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "single subflow allow join id0 ns2" 0 0 0
@@ -1851,8 +1865,8 @@ deny_join_id0_tests()
 	# signal address allow join id0 ns1
 	# ADD_ADDRs are not affected by allow_join_id0 value.
 	reset_with_allow_join_id0 1 0
-	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 1 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "signal address allow join id0 ns1" 1 1 1
@@ -1861,8 +1875,8 @@ deny_join_id0_tests()
 	# signal address allow join id0 ns2
 	# ADD_ADDRs are not affected by allow_join_id0 value.
 	reset_with_allow_join_id0 0 1
-	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 1 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "signal address allow join id0 ns2" 1 1 1
@@ -1870,8 +1884,8 @@ deny_join_id0_tests()
 
 	# subflow and address allow join id0 ns1
 	reset_with_allow_join_id0 1 0
-	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	pm_nl_set_limits $ns1 2 2
+	pm_nl_set_limits $ns2 2 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
@@ -1879,8 +1893,8 @@ deny_join_id0_tests()
 
 	# subflow and address allow join id0 ns2
 	reset_with_allow_join_id0 0 1
-	ip netns exec $ns1 ./pm_nl_ctl limits 2 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 2 2
+	pm_nl_set_limits $ns1 2 2
+	pm_nl_set_limits $ns2 2 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
@@ -1893,8 +1907,8 @@ fullmesh_tests()
 	# 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
+	pm_nl_set_limits $ns1 0 4
+	pm_nl_set_limits $ns2 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
@@ -1905,8 +1919,8 @@ fullmesh_tests()
 	# 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
+	pm_nl_set_limits $ns1 1 3
+	pm_nl_set_limits $ns2 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 fullmesh_1 slow
 	chk_join_nr "fullmesh test 1x1" 3 3 3
@@ -1916,8 +1930,8 @@ fullmesh_tests()
 	# 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
+	pm_nl_set_limits $ns1 2 5
+	pm_nl_set_limits $ns2 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 fullmesh_2 slow
 	chk_join_nr "fullmesh test 1x2" 5 5 5
@@ -1928,8 +1942,8 @@ fullmesh_tests()
 	# 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
+	pm_nl_set_limits $ns1 2 4
+	pm_nl_set_limits $ns2 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 fullmesh_2 slow
 	chk_join_nr "fullmesh test 1x2, limited" 4 4 4
@@ -1941,8 +1955,8 @@ userspace_tests()
 	# userspace pm type prevents add_addr
 	reset
 	ip netns exec $ns1 sysctl -q net.mptcp.pm_type=1
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "userspace pm type prevents add_addr" 0 0 0
@@ -1951,8 +1965,8 @@ userspace_tests()
 	# userspace pm type echoes add_addr
 	reset
 	ip netns exec $ns2 sysctl -q net.mptcp.pm_type=1
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 2
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 2
+	pm_nl_set_limits $ns1 0 2
+	pm_nl_set_limits $ns2 0 2
 	ip netns exec $ns1 ./pm_nl_ctl add 10.0.2.1 flags signal
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "userspace pm type echoes add_addr" 0 0 0
@@ -1961,8 +1975,8 @@ userspace_tests()
 	# userspace pm type rejects join
 	reset
 	ip netns exec $ns1 sysctl -q net.mptcp.pm_type=1
-	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 1 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "userspace pm type rejects join" 1 1 0
@@ -1970,8 +1984,8 @@ userspace_tests()
 	# userspace pm type does not send join
 	reset
 	ip netns exec $ns2 sysctl -q net.mptcp.pm_type=1
-	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 1 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1
 	chk_join_nr "userspace pm type does not send join" 0 0 0
@@ -1979,8 +1993,8 @@ userspace_tests()
 	# userspace pm type prevents mp_prio
 	reset
 	ip netns exec $ns1 sysctl -q net.mptcp.pm_type=1
-	ip netns exec $ns1 ./pm_nl_ctl limits 1 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 1 1
+	pm_nl_set_limits $ns1 1 1
+	pm_nl_set_limits $ns2 1 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
 	chk_join_nr "userspace pm type prevents mp_prio" 1 1 0
@@ -1990,8 +2004,8 @@ userspace_tests()
 	reset
 	ip netns exec $ns1 sysctl -q net.mptcp.pm_type=1
 	ip netns exec $ns2 sysctl -q net.mptcp.pm_type=1
-	ip netns exec $ns1 ./pm_nl_ctl limits 0 1
-	ip netns exec $ns2 ./pm_nl_ctl limits 0 1
+	pm_nl_set_limits $ns1 0 1
+	pm_nl_set_limits $ns2 0 1
 	ip netns exec $ns2 ./pm_nl_ctl add 10.0.3.2 flags subflow
 	run_tests $ns1 $ns2 10.0.1.1 0 0 -1 slow
 	chk_join_nr "userspace pm type prevents rm_addr" 0 0 0
-- 
2.31.1