[PATCH mptcp-next v2 0/4] cleanups for pm listener event tests

[PATCH mptcp-next v2 0/4] cleanups for pm listener event tests

[Geliang Tang]

Order of these patches:
  selftests: mptcp: listener test for in-kernel PM
  selftests: mptcp: make evts global in mptcp_join
  selftests: mptcp: listener test for userspace PM
  selftests: mptcp: make evts global in userspace_pm
  selftests: mptcp: enhance userspace pm tests
  mptcp: add pm listener events

Geliang Tang (4):
  selftests: mptcp: make evts global in userspace_pm
  Squash to "selftests: mptcp: listener test for userspace PM"
  selftests: mptcp: make evts global in mptcp_join
  Squash to "selftests: mptcp: listener test for in-kernel PM"

 .../testing/selftests/net/mptcp/mptcp_join.sh |  95 +++----
 .../selftests/net/mptcp/userspace_pm.sh       | 233 ++++++++----------
 2 files changed, 149 insertions(+), 179 deletions(-)

-- 
2.35.3

[PATCH mptcp-next v2 1/4] selftests: mptcp: make evts global in userspace_pm

[Geliang Tang]

This patch makes server_evts and client_evts global in userspace_pm.sh,
then these two variables could be used in test_announce(), test_remove()
and test_subflows(). The local variable 'evts' in these three functions
then could be dropped.

Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 .../selftests/net/mptcp/userspace_pm.sh       | 209 ++++++++----------
 1 file changed, 90 insertions(+), 119 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index 40801279ebdf..a1b7592621b7 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -17,7 +17,10 @@ LISTENER_CLOSED=16  #MPTCP_EVENT_LISTENER_CLOSED
 AF_INET=2
 AF_INET6=10
 
-evts_pid=0
+server_evts=""
+client_evts=""
+server_evts_pid=0
+client_evts_pid=0
 client4_pid=0
 server4_pid=0
 client6_pid=0
@@ -49,7 +52,7 @@ cleanup()
 {
 	echo "cleanup"
 
-	rm -rf $file
+	rm -f "$client_evts" "$server_evts" "$file"
 
 	# Terminate the MPTCP connection and related processes
 	if [ $client4_pid -ne 0 ]; then
@@ -64,8 +67,11 @@ cleanup()
 	if [ $server6_pid -ne 0 ]; then
 		kill_wait $server6_pid
 	fi
-	if [ $evts_pid -ne 0 ]; then
-		kill_wait $evts_pid
+	if [ $server_evts_pid -ne 0 ]; then
+		kill_wait $server_evts_pid
+	fi
+	if [ $client_evts_pid -ne 0 ]; then
+		kill_wait $client_evts_pid
 	fi
 	local netns
 	for netns in "$ns1" "$ns2" ;do
@@ -134,18 +140,25 @@ make_connection()
 
 	# Capture netlink events over the two network namespaces running
 	# the MPTCP client and server
-	local client_evts
-	client_evts=$(mktemp)
+	if [ -z "$client_evts" ]; then
+		client_evts=$(mktemp)
+	fi
 	:>"$client_evts"
+	if [ $client_evts_pid -ne 0 ]; then
+		kill_wait $client_evts_pid
+	fi
 	ip netns exec "$ns2" ./pm_nl_ctl events >> "$client_evts" 2>&1 &
-	local client_evts_pid=$!
-	local server_evts
-	server_evts=$(mktemp)
+	client_evts_pid=$!
+	if [ -z "$server_evts" ]; then
+		server_evts=$(mktemp)
+	fi
 	:>"$server_evts"
+	if [ $server_evts_pid -ne 0 ]; then
+		kill_wait $server_evts_pid
+	fi
 	ip netns exec "$ns1" ./pm_nl_ctl events >> "$server_evts" 2>&1 &
-	local server_evts_pid=$!
+	server_evts_pid=$!
 	sleep 0.5
-
 	# Run the server
 	ip netns exec "$ns1" \
 	   ./mptcp_connect -s MPTCP -w 300 -p $app_port -l $listen_addr > /dev/null 2>&1 &
@@ -161,7 +174,6 @@ make_connection()
 	sleep 1
 
 	# Capture client/server attributes from MPTCP connection netlink events
-	kill_wait $client_evts_pid
 
 	local client_token
 	local client_port
@@ -173,12 +185,11 @@ make_connection()
 	client_port=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
 	client_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\
 				      "$client_evts")
-	kill_wait $server_evts_pid
 	server_token=$(grep "type:1," "$server_evts" |
 		       sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q')
 	server_serverside=$(grep "type:1," "$server_evts" |
 			    sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q')
-	rm -f "$client_evts" "$server_evts" "$file"
+	rm -f "$file"
 
 	if [ "$client_token" != "" ] && [ "$server_token" != "" ] && [ "$client_serverside" = 0 ] &&
 		   [ "$server_serverside" = 1 ]
@@ -242,13 +253,8 @@ verify_announce_event()
 
 test_announce()
 {
-	local evts
-	evts=$(mktemp)
 	# Capture events on the network namespace running the server
-	:>"$evts"
-	ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 &
-	evts_pid=$!
-	sleep 0.5
+	:>"$server_evts"
 
 	# ADD_ADDR using an invalid token should result in no action
 	local invalid_token=$(( client4_token - 1))
@@ -256,7 +262,7 @@ test_announce()
 	   $client_addr_id dev ns2eth1 > /dev/null 2>&1
 
 	local type
-	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 	stdbuf -o0 -e0 printf "ADD_ADDR 10.0.2.2 (ns2) => ns1, invalid token    \t\t"
 	if [ "$type" = "" ]
 	then
@@ -267,71 +273,63 @@ test_announce()
 	fi
 
 	# ADD_ADDR from the client to server machine reusing the subflow port
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns2"\
 	   ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id $client_addr_id dev\
 	   ns2eth1 > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.2 (ns2) => ns1, reuse port \t\t" $client_addr_id
 	sleep 0.5
-	verify_announce_event "$evts" "$ANNOUNCED" "$server4_token" "10.0.2.2" "$client_addr_id"\
+	verify_announce_event $server_evts $ANNOUNCED $server4_token "10.0.2.2" $client_addr_id \
 			      "$client4_port"
 
 	# ADD_ADDR6 from the client to server machine reusing the subflow port
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl ann\
 	   dead:beef:2::2 token "$client6_token" id $client_addr_id dev ns2eth1 > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "ADD_ADDR6 id:%d dead:beef:2::2 (ns2) => ns1, reuse port\t\t" $client_addr_id
 	sleep 0.5
-	verify_announce_event "$evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\
+	verify_announce_event "$server_evts" "$ANNOUNCED" "$server6_token" "dead:beef:2::2"\
 			      "$client_addr_id" "$client6_port" "v6"
 
 	# ADD_ADDR from the client to server machine using a new port
-	:>"$evts"
+	:>"$server_evts"
 	client_addr_id=$((client_addr_id+1))
 	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
 	   $client_addr_id dev ns2eth1 port $new4_port > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.2 (ns2) => ns1, new port \t\t\t" $client_addr_id
 	sleep 0.5
-	verify_announce_event "$evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
+	verify_announce_event "$server_evts" "$ANNOUNCED" "$server4_token" "10.0.2.2"\
 			      "$client_addr_id" "$new4_port"
 
-	kill_wait $evts_pid
-
 	# Capture events on the network namespace running the client
-	:>"$evts"
-	ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 &
-	evts_pid=$!
-	sleep 0.5
+	:>"$client_evts"
 
 	# ADD_ADDR from the server to client machine reusing the subflow port
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
 	   $server_addr_id dev ns1eth2 > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.1 (ns1) => ns2, reuse port \t\t" $server_addr_id
 	sleep 0.5
-	verify_announce_event "$evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
+	verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
 			      "$server_addr_id" "$app4_port"
 
 	# ADD_ADDR6 from the server to client machine reusing the subflow port
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
 	   $server_addr_id dev ns1eth2 > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "ADD_ADDR6 id:%d dead:beef:2::1 (ns1) => ns2, reuse port\t\t" $server_addr_id
 	sleep 0.5
-	verify_announce_event "$evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\
+	verify_announce_event "$client_evts" "$ANNOUNCED" "$client6_token" "dead:beef:2::1"\
 			      "$server_addr_id" "$app6_port" "v6"
 
 	# ADD_ADDR from the server to client machine using a new port
-	:>"$evts"
+	:>"$client_evts"
 	server_addr_id=$((server_addr_id+1))
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
 	   $server_addr_id dev ns1eth2 port $new4_port > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "ADD_ADDR id:%d 10.0.2.1 (ns1) => ns2, new port \t\t\t" $server_addr_id
 	sleep 0.5
-	verify_announce_event "$evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
+	verify_announce_event "$client_evts" "$ANNOUNCED" "$client4_token" "10.0.2.1"\
 			      "$server_addr_id" "$new4_port"
-
-	kill_wait $evts_pid
-	rm -f "$evts"
 }
 
 verify_remove_event()
@@ -359,14 +357,8 @@ verify_remove_event()
 
 test_remove()
 {
-	local evts
-	evts=$(mktemp)
-
 	# Capture events on the network namespace running the server
-	:>"$evts"
-	ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 &
-	evts_pid=$!
-	sleep 0.5
+	:>"$server_evts"
 
 	# RM_ADDR using an invalid token should result in no action
 	local invalid_token=$(( client4_token - 1 ))
@@ -375,7 +367,7 @@ test_remove()
 	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1, invalid token                    \t"\
 	       $client_addr_id
 	local type
-	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 	if [ "$type" = "" ]
 	then
 		stdbuf -o0 -e0 printf "[OK]\n"
@@ -389,7 +381,7 @@ test_remove()
 	   $invalid_id > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1, invalid id                    \t"\
 	       $invalid_id
-	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	type=$(sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 	if [ "$type" = "" ]
 	then
 		stdbuf -o0 -e0 printf "[OK]\n"
@@ -398,40 +390,35 @@ test_remove()
 	fi
 
 	# RM_ADDR from the client to server machine
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
 	   $client_addr_id > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1                                \t"\
 	       $client_addr_id
 	sleep 0.5
-	verify_remove_event "$evts" "$REMOVED" "$server4_token" "$client_addr_id"
+	verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
 
 	# RM_ADDR from the client to server machine
-	:>"$evts"
+	:>"$server_evts"
 	client_addr_id=$(( client_addr_id - 1 ))
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client4_token" id\
 	   $client_addr_id > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns2 => ns1                                \t"\
 	       $client_addr_id
 	sleep 0.5
-	verify_remove_event "$evts" "$REMOVED" "$server4_token" "$client_addr_id"
+	verify_remove_event "$server_evts" "$REMOVED" "$server4_token" "$client_addr_id"
 
 	# RM_ADDR6 from the client to server machine
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl rem token "$client6_token" id\
 	   $client_addr_id > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "RM_ADDR6 id:%d ns2 => ns1                               \t"\
 	       $client_addr_id
 	sleep 0.5
-	verify_remove_event "$evts" "$REMOVED" "$server6_token" "$client_addr_id"
-
-	kill_wait $evts_pid
+	verify_remove_event "$server_evts" "$REMOVED" "$server6_token" "$client_addr_id"
 
 	# Capture events on the network namespace running the client
-	:>"$evts"
-	ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 &
-	evts_pid=$!
-	sleep 0.5
+	:>"$client_evts"
 
 	# RM_ADDR from the server to client machine
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
@@ -439,27 +426,24 @@ test_remove()
 	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns1 => ns2                                \t"\
 	       $server_addr_id
 	sleep 0.5
-	verify_remove_event "$evts" "$REMOVED" "$client4_token" "$server_addr_id"
+	verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
 
 	# RM_ADDR from the server to client machine
-	:>"$evts"
+	:>"$client_evts"
 	server_addr_id=$(( server_addr_id - 1 ))
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server4_token" id\
 	   $server_addr_id > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "RM_ADDR id:%d ns1 => ns2                                \t" $server_addr_id
 	sleep 0.5
-	verify_remove_event "$evts" "$REMOVED" "$client4_token" "$server_addr_id"
+	verify_remove_event "$client_evts" "$REMOVED" "$client4_token" "$server_addr_id"
 
 	# RM_ADDR6 from the server to client machine
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl rem token "$server6_token" id\
 	   $server_addr_id > /dev/null 2>&1
 	stdbuf -o0 -e0 printf "RM_ADDR6 id:%d ns1 => ns2                               \t" $server_addr_id
 	sleep 0.5
-	verify_remove_event "$evts" "$REMOVED" "$client6_token" "$server_addr_id"
-
-	kill_wait $evts_pid
-	rm -f "$evts"
+	verify_remove_event "$client_evts" "$REMOVED" "$client6_token" "$server_addr_id"
 }
 
 verify_subflow_events()
@@ -535,13 +519,8 @@ verify_subflow_events()
 
 test_subflows()
 {
-	local evts
-	evts=$(mktemp)
 	# Capture events on the network namespace running the server
-	:>"$evts"
-	ip netns exec "$ns1" ./pm_nl_ctl events >> "$evts" 2>&1 &
-	evts_pid=$!
-	sleep 0.5
+	:>"$server_evts"
 
 	# Attempt to add a listener at 10.0.2.2:<subflow-port>
 	ip netns exec "$ns2" ./pm_nl_ctl listen 10.0.2.2\
@@ -554,25 +533,25 @@ test_subflows()
 	sleep 0.5
 
 	# CREATE_SUBFLOW from server to client machine
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2\
 	   rport "$client4_port" token "$server4_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET" "10.0.2.1"\
+	verify_subflow_events $server_evts $SUB_ESTABLISHED $server4_token $AF_INET "10.0.2.1" \
 			      "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
 
 	# Delete the listener from the client ns, if one was created
 	kill_wait $listener_pid
 
 	local sport
-	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 
 	# DESTROY_SUBFLOW from server to client machine
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
 	   "$client4_port" token "$server4_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
+	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
 			      "10.0.2.2" "$client4_port" "23" "$client_addr_id" "ns1" "ns2"
 
 	# RM_ADDR from client to server machine
@@ -586,31 +565,31 @@ test_subflows()
 	listener_pid=$!
 
 	# ADD_ADDR6 from client to server machine reusing the subflow port
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl ann dead:beef:2::2 token "$client6_token" id\
 	   $client_addr_id > /dev/null 2>&1
 	sleep 0.5
 
 	# CREATE_SUBFLOW6 from server to client machine
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl csf lip dead:beef:2::1 lid 23 rip\
 	   dead:beef:2::2 rport "$client6_port" token "$server6_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$server6_token" "$AF_INET6"\
+	verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server6_token" "$AF_INET6"\
 			      "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
 			      "$client_addr_id" "ns1" "ns2"
 
 	# Delete the listener from the client ns, if one was created
 	kill_wait $listener_pid
 
-	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 
 	# DESTROY_SUBFLOW6 from server to client machine
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl dsf lip dead:beef:2::1 lport "$sport" rip\
 	   dead:beef:2::2 rport "$client6_port" token "$server6_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_CLOSED" "$server6_token" "$AF_INET6"\
+	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server6_token" "$AF_INET6"\
 			      "dead:beef:2::1" "dead:beef:2::2" "$client6_port" "23"\
 			      "$client_addr_id" "ns1" "ns2"
 
@@ -625,44 +604,39 @@ test_subflows()
 	listener_pid=$!
 
 	# ADD_ADDR from client to server machine using a new port
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl ann 10.0.2.2 token "$client4_token" id\
 	   $client_addr_id port $new4_port > /dev/null 2>&1
 	sleep 0.5
 
 	# CREATE_SUBFLOW from server to client machine
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl csf lip 10.0.2.1 lid 23 rip 10.0.2.2 rport\
 	   $new4_port token "$server4_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET"\
+	verify_subflow_events "$server_evts" "$SUB_ESTABLISHED" "$server4_token" "$AF_INET"\
 			      "10.0.2.1" "10.0.2.2" "$new4_port" "23"\
 			      "$client_addr_id" "ns1" "ns2"
 
 	# Delete the listener from the client ns, if one was created
 	kill_wait $listener_pid
 
-	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$server_evts")
 
 	# DESTROY_SUBFLOW from server to client machine
-	:>"$evts"
+	:>"$server_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl dsf lip 10.0.2.1 lport "$sport" rip 10.0.2.2 rport\
 	   $new4_port token "$server4_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
+	verify_subflow_events "$server_evts" "$SUB_CLOSED" "$server4_token" "$AF_INET" "10.0.2.1"\
 			      "10.0.2.2" "$new4_port" "23" "$client_addr_id" "ns1" "ns2"
 
 	# RM_ADDR from client to server machine
 	ip netns exec "$ns2" ./pm_nl_ctl rem id $client_addr_id token\
 	   "$client4_token" > /dev/null 2>&1
 
-	kill_wait $evts_pid
-
 	# Capture events on the network namespace running the client
-	:>"$evts"
-	ip netns exec "$ns2" ./pm_nl_ctl events >> "$evts" 2>&1 &
-	evts_pid=$!
-	sleep 0.5
+	:>"$client_evts"
 
 	# Attempt to add a listener at 10.0.2.1:<subflow-port>
 	ip netns exec "$ns1" ./pm_nl_ctl listen 10.0.2.1\
@@ -675,24 +649,24 @@ test_subflows()
 	sleep 0.5
 
 	# CREATE_SUBFLOW from client to server machine
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
 	   $app4_port token "$client4_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET" "10.0.2.2"\
+	verify_subflow_events $client_evts $SUB_ESTABLISHED $client4_token $AF_INET "10.0.2.2"\
 			      "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# Delete the listener from the server ns, if one was created
 	kill_wait $listener_pid
 
-	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
 
 	# DESTROY_SUBFLOW from client to server machine
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
 	   $app4_port token "$client4_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
+	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
 			      "10.0.2.1" "$app4_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# RM_ADDR from server to client machine
@@ -706,17 +680,17 @@ test_subflows()
 	listener_pid=$!
 
 	# ADD_ADDR6 from server to client machine reusing the subflow port
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann dead:beef:2::1 token "$server6_token" id\
 	   $server_addr_id > /dev/null 2>&1
 	sleep 0.5
 
 	# CREATE_SUBFLOW6 from client to server machine
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl csf lip dead:beef:2::2 lid 23 rip\
 	   dead:beef:2::1 rport $app6_port token "$client6_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$client6_token"\
+	verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client6_token"\
 			      "$AF_INET6" "dead:beef:2::2"\
 			      "dead:beef:2::1" "$app6_port" "23"\
 			      "$server_addr_id" "ns2" "ns1"
@@ -724,14 +698,14 @@ test_subflows()
 	# Delete the listener from the server ns, if one was created
 	kill_wait $listener_pid
 
-	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
 
 	# DESTROY_SUBFLOW6 from client to server machine
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip dead:beef:2::2 lport "$sport" rip\
 	   dead:beef:2::1 rport $app6_port token "$client6_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_CLOSED" "$client6_token" "$AF_INET6" "dead:beef:2::2"\
+	verify_subflow_events $client_evts $SUB_CLOSED $client6_token $AF_INET6 "dead:beef:2::2"\
 			      "dead:beef:2::1" "$app6_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# RM_ADDR6 from server to client machine
@@ -745,38 +719,35 @@ test_subflows()
 	listener_pid=$!
 
 	# ADD_ADDR from server to client machine using a new port
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns1" ./pm_nl_ctl ann 10.0.2.1 token "$server4_token" id\
 	   $server_addr_id port $new4_port > /dev/null 2>&1
 	sleep 0.5
 
 	# CREATE_SUBFLOW from client to server machine
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl csf lip 10.0.2.2 lid 23 rip 10.0.2.1 rport\
 	   $new4_port token "$client4_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET"\
+	verify_subflow_events "$client_evts" "$SUB_ESTABLISHED" "$client4_token" "$AF_INET"\
 			      "10.0.2.2" "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# Delete the listener from the server ns, if one was created
 	kill_wait $listener_pid
 
-	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$evts")
+	sport=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
 
 	# DESTROY_SUBFLOW from client to server machine
-	:>"$evts"
+	:>"$client_evts"
 	ip netns exec "$ns2" ./pm_nl_ctl dsf lip 10.0.2.2 lport "$sport" rip 10.0.2.1 rport\
 	   $new4_port token "$client4_token" > /dev/null 2>&1
 	sleep 0.5
-	verify_subflow_events "$evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
+	verify_subflow_events "$client_evts" "$SUB_CLOSED" "$client4_token" "$AF_INET" "10.0.2.2"\
 			      "10.0.2.1" "$new4_port" "23" "$server_addr_id" "ns2" "ns1"
 
 	# RM_ADDR from server to client machine
 	ip netns exec "$ns1" ./pm_nl_ctl rem id $server_addr_id token\
 	   "$server4_token" > /dev/null 2>&1
-
-	kill_wait $evts_pid
-	rm -f "$evts"
 }
 
 test_prio()
-- 
2.35.3

[PATCH mptcp-next v2 2/4] Squash to "selftests: mptcp: listener test for userspace PM"

[Geliang Tang]

Do some cleanups.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 .../selftests/net/mptcp/userspace_pm.sh       | 24 +++++++------------
 1 file changed, 9 insertions(+), 15 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/userspace_pm.sh b/tools/testing/selftests/net/mptcp/userspace_pm.sh
index a1b7592621b7..2cebb20552b8 100755
--- a/tools/testing/selftests/net/mptcp/userspace_pm.sh
+++ b/tools/testing/selftests/net/mptcp/userspace_pm.sh
@@ -807,7 +807,7 @@ verify_listener_events()
 		 sed --unbuffered -n 's/.*\(family:\)\([[:digit:]]*\).*$/\2/p;q')
 	sport=$(grep "type:$e_type," $evt |
 		sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q')
-	if [ $family = $AF_INET6 ]; then
+	if [ $family ] && [ $family = $AF_INET6 ]; then
 		saddr=$(grep "type:$e_type," $evt |
 			sed --unbuffered -n 's/.*\(saddr6:\)\([0-9a-f:.]*\).*$/\2/p;q')
 	else
@@ -815,8 +815,10 @@ verify_listener_events()
 			sed --unbuffered -n 's/.*\(saddr4:\)\([0-9.]*\).*$/\2/p;q')
 	fi
 
-	if [ $type = $e_type ] && [ $family = $e_family ] &&
-	   [ $saddr = $e_saddr ] && [ $sport = $e_sport ]; then
+	if [ $type ] && [ $type = $e_type ] &&
+	   [ $family ] && [ $family = $e_family ] &&
+	   [ $saddr ] && [ $saddr = $e_saddr ] &&
+	   [ $sport ] && [ $sport = $e_sport ]; then
 		stdbuf -o0 -e0 printf "[OK]\n"
 		return 0
 	fi
@@ -826,20 +828,15 @@ verify_listener_events()
 
 test_listener()
 {
-	local evts
-	evts=$(mktemp)
-	# Capture events on the network namespace running the server
-	:>$evts
-	ip netns exec $ns2 ./pm_nl_ctl events >> $evts 2>&1 &
-	evts_pid=$!
-	sleep 0.5
+	# Capture events on the network namespace running the client
+	:>$client_evts
 
 	# Attempt to add a listener at 10.0.2.2:<subflow-port>
 	ip netns exec $ns2 ./pm_nl_ctl listen 10.0.2.2\
 		$client4_port > /dev/null 2>&1 &
 	local listener_pid=$!
 
-	verify_listener_events $evts 15 $AF_INET 10.0.2.2 $client4_port
+	verify_listener_events $client_evts $LISTENER_CREATED $AF_INET 10.0.2.2 $client4_port
 
 	# ADD_ADDR from client to server machine reusing the subflow port
 	ip netns exec $ns2 ./pm_nl_ctl ann 10.0.2.2 token $client4_token id\
@@ -854,10 +851,7 @@ test_listener()
 	# Delete the listener from the client ns, if one was created
 	kill_wait $listener_pid
 
-	verify_listener_events $evts 16 $AF_INET 10.0.2.2 $client4_port
-
-	kill_wait $evts_pid
-	rm -f $evts
+	verify_listener_events $client_evts $LISTENER_CLOSED $AF_INET 10.0.2.2 $client4_port
 }
 
 make_connection
-- 
2.35.3

[PATCH mptcp-next v2 3/4] selftests: mptcp: make evts global in mptcp_join

[Geliang Tang]

This patch moves evts_ns1 and evts_ns2 out of do_transfer() as two global
variables in mptcp_join.sh. Init them in init() and remove them in
cleanup(). Add a new helper reset_with_events() to save the outputs of
'pm_nl_ctl events' in them.

Suggested-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 .../testing/selftests/net/mptcp/mptcp_join.sh | 70 +++++++++++--------
 1 file changed, 41 insertions(+), 29 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 89a30225bbd7..f568c71884c7 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -26,6 +26,10 @@ ip_mptcp=0
 check_invert=0
 validate_checksum=0
 init=0
+evts_ns1=""
+evts_ns2=""
+evts_ns1_pid=0
+evts_ns2_pid=0
 
 declare -A all_tests
 declare -a only_tests_ids
@@ -154,6 +158,8 @@ init() {
 	cin=$(mktemp)
 	cinsent=$(mktemp)
 	cout=$(mktemp)
+	evts_ns1=$(mktemp)
+	evts_ns2=$(mktemp)
 
 	trap cleanup EXIT
 
@@ -161,10 +167,23 @@ init() {
 	make_file "$sin" "server" 1
 }
 
+kill_wait()
+{
+	kill $1 > /dev/null 2>&1
+	wait $1 2>/dev/null
+}
+
 cleanup()
 {
 	rm -f "$cin" "$cout" "$sinfail"
 	rm -f "$sin" "$sout" "$cinsent" "$cinfail"
+	if [ $evts_ns1_pid -gt 0 ]; then
+		kill_wait $evts_ns1_pid
+	fi
+	if [ $evts_ns2_pid -gt 0 ]; then
+		kill_wait $evts_ns2_pid
+	fi
+	rm -rf $evts_ns1 $evts_ns2
 	cleanup_partial
 }
 
@@ -320,6 +339,26 @@ reset_with_fail()
 		index 100 || exit 1
 }
 
+reset_with_events()
+{
+	reset "${1}" || return 1
+
+	:> "$evts_ns1"
+	:> "$evts_ns2"
+
+	if [ $evts_ns1_pid -gt 0 ]; then
+		kill_wait $evts_ns1_pid
+	fi
+	if [ $evts_ns2_pid -gt 0 ]; then
+		kill_wait $evts_ns2_pid
+	fi
+
+	ip netns exec $ns1 ./pm_nl_ctl events >> "$evts_ns1" 2>&1 &
+	evts_ns1_pid=$!
+	ip netns exec $ns2 ./pm_nl_ctl events >> "$evts_ns2" 2>&1 &
+	evts_ns2_pid=$!
+}
+
 fail_test()
 {
 	ret=1
@@ -467,12 +506,6 @@ wait_mpj()
 	done
 }
 
-kill_wait()
-{
-	kill $1 > /dev/null 2>&1
-	wait $1 2>/dev/null
-}
-
 pm_nl_set_limits()
 {
 	local ns=$1
@@ -673,10 +706,6 @@ do_transfer()
 	local port=$((10000 + TEST_COUNT - 1))
 	local cappid
 	local userspace_pm=0
-	local evts_ns1
-	local evts_ns1_pid
-	local evts_ns2
-	local evts_ns2_pid
 
 	:> "$cout"
 	:> "$sout"
@@ -753,17 +782,6 @@ do_transfer()
 		addr_nr_ns2=${addr_nr_ns2:9}
 	fi
 
-	if [ $userspace_pm -eq 1 ]; then
-		evts_ns1=$(mktemp)
-		evts_ns2=$(mktemp)
-		:> "$evts_ns1"
-		:> "$evts_ns2"
-		ip netns exec ${listener_ns} ./pm_nl_ctl events >> "$evts_ns1" 2>&1 &
-		evts_ns1_pid=$!
-		ip netns exec ${connector_ns} ./pm_nl_ctl events >> "$evts_ns2" 2>&1 &
-		evts_ns2_pid=$!
-	fi
-
 	local local_addr
 	if is_v6 "${connect_addr}"; then
 		local_addr="::"
@@ -982,12 +1000,6 @@ do_transfer()
 	    kill $cappid
 	fi
 
-	if [ $userspace_pm -eq 1 ]; then
-		kill_wait $evts_ns1_pid
-		kill_wait $evts_ns2_pid
-		rm -rf $evts_ns1 $evts_ns2
-	fi
-
 	NSTAT_HISTORY=/tmp/${listener_ns}.nstat ip netns exec ${listener_ns} \
 		nstat | grep Tcp > /tmp/${listener_ns}.out
 	NSTAT_HISTORY=/tmp/${connector_ns}.nstat ip netns exec ${connector_ns} \
@@ -3023,7 +3035,7 @@ userspace_tests()
 	fi
 
 	# userspace pm add & remove address
-	if reset "userspace pm add & remove address"; then
+	if reset_with_events "userspace pm add & remove address"; then
 		set_userspace_pm $ns1
 		pm_nl_set_limits $ns2 1 1
 		run_tests $ns1 $ns2 10.0.1.1 0 userspace_1 0 slow
@@ -3033,7 +3045,7 @@ userspace_tests()
 	fi
 
 	# userspace pm create destroy subflow
-	if reset "userspace pm create destroy subflow"; then
+	if reset_with_events "userspace pm create destroy subflow"; then
 		set_userspace_pm $ns2
 		pm_nl_set_limits $ns1 0 1
 		run_tests $ns1 $ns2 10.0.1.1 0 0 userspace_1 slow
-- 
2.35.3

[PATCH mptcp-next v2 4/4] Squash to "selftests: mptcp: listener test for in-kernel PM"

[Geliang Tang]

Do some cleanups.

Signed-off-by: Geliang Tang <geliang.tang@suse.com>
---
 .../testing/selftests/net/mptcp/mptcp_join.sh | 25 +++++++------------
 1 file changed, 9 insertions(+), 16 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index f568c71884c7..168426798971 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -2553,7 +2553,7 @@ verify_listener_events()
 		 sed --unbuffered -n 's/.*\(family:\)\([[:digit:]]*\).*$/\2/p;q')
 	sport=$(grep "type:$e_type," $evt |
 		sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q')
-	if [ $family = $AF_INET6 ]; then
+	if [ $family ] && [ $family = $AF_INET6 ]; then
 		saddr=$(grep "type:$e_type," $evt |
 			sed --unbuffered -n 's/.*\(saddr6:\)\([0-9a-f:.]*\).*$/\2/p;q')
 	else
@@ -2561,11 +2561,14 @@ verify_listener_events()
 			sed --unbuffered -n 's/.*\(saddr4:\)\([0-9.]*\).*$/\2/p;q')
 	fi
 
-	if [ $type = $e_type ] && [ $family = $e_family ] &&
-	   [ $saddr = $e_saddr ] && [ $sport = $e_sport ]; then
+	if [ $type ] && [ $type = $e_type ] &&
+	   [ $family ] && [ $family = $e_family ] &&
+	   [ $saddr ] && [ $saddr = $e_saddr ] &&
+	   [ $sport ] && [ $sport = $e_sport ]; then
 		stdbuf -o0 -e0 printf "[ ok ]\n"
 		return 0
 	fi
+	fail_test
 	stdbuf -o0 -e0 printf "[fail]\n"
 }
 
@@ -2594,15 +2597,7 @@ add_addr_ports_tests()
 
 	# single address with port, remove
 	# pm listener events
-	if reset "remove single address with port"; then
-		local evts
-		local pid
-
-		evts=$(mktemp)
-		:> $evts
-		ip netns exec $ns1 ./pm_nl_ctl events >> $evts 2>&1 &
-		pid=$!
-
+	if reset_with_events "remove single address with port"; then
 		pm_nl_set_limits $ns1 0 1
 		pm_nl_add_endpoint $ns1 10.0.2.1 flags signal port 10100
 		pm_nl_set_limits $ns2 1 1
@@ -2611,10 +2606,8 @@ add_addr_ports_tests()
 		chk_add_nr 1 1 1
 		chk_rm_nr 1 1 invert
 
-		verify_listener_events $evts 15 $AF_INET 10.0.2.1 10100
-		verify_listener_events $evts 16 $AF_INET 10.0.2.1 10100
-		kill_wait $pid
-		rm -rf $evts
+		verify_listener_events $evts_ns1 $LISTENER_CREATED $AF_INET 10.0.2.1 10100
+		verify_listener_events $evts_ns1 $LISTENER_CLOSED $AF_INET 10.0.2.1 10100
 	fi
 
 	# subflow and signal with port, remove
-- 
2.35.3

Re: Squash to "selftests: mptcp: listener test for in-kernel PM": Tests Results

[MPTCP CI]

Hi Geliang,

Thank you for your modifications, that's great!

Our CI did some validations and here is its report:

- KVM Validation: normal:
  - Critical: Global Timeout ❌:
  - Task: https://cirrus-ci.com/task/5696994207858688
  - Summary: https://api.cirrus-ci.com/v1/artifact/task/5696994207858688/summary/summary.txt

- KVM Validation: debug:
  - Critical: Global Timeout ❌:
  - Task: https://cirrus-ci.com/task/5134044254437376
  - Summary: https://api.cirrus-ci.com/v1/artifact/task/5134044254437376/summary/summary.txt

Initiator: Patchew Applier
Commits: https://github.com/multipath-tcp/mptcp_net-next/commits/5e713f4d81e0


If there are some issues, you can reproduce them using the same environment as
the one used by the CI thanks to a docker image, e.g.:

    $ cd [kernel source code]
    $ docker run -v "${PWD}:${PWD}:rw" -w "${PWD}" --privileged --rm -it \
        --pull always mptcp/mptcp-upstream-virtme-docker:latest \
        auto-debug

For more details:

    https://github.com/multipath-tcp/mptcp-upstream-virtme-docker


Please note that despite all the efforts that have been already done to have a
stable tests suite when executed on a public CI like here, it is possible some
reported issues are not due to your modifications. Still, do not hesitate to
help us improve that ;-)

Cheers,
MPTCP GH Action bot
Bot operated by Matthieu Baerts (Tessares)

Re: [PATCH mptcp-next v2 1/4] selftests: mptcp: make evts global in userspace_pm

[Paolo Abeni]

Hi,

On Fri, 2022-11-25 at 21:40 +0800, Geliang Tang wrote:
> @@ -134,18 +140,25 @@ make_connection()
>  
>  	# Capture netlink events over the two network namespaces running
>  	# the MPTCP client and server
> -	local client_evts
> -	client_evts=$(mktemp)
> +	if [ -z "$client_evts" ]; then
> +		client_evts=$(mktemp)
> +	fi
>  	:>"$client_evts"
> +	if [ $client_evts_pid -ne 0 ]; then
> +		kill_wait $client_evts_pid
> +	fi
>  	ip netns exec "$ns2" ./pm_nl_ctl events >> "$client_evts" 2>&1 &
> -	local client_evts_pid=$!
> -	local server_evts
> -	server_evts=$(mktemp)
> +	client_evts_pid=$!
> +	if [ -z "$server_evts" ]; then
> +		server_evts=$(mktemp)
> +	fi
>  	:>"$server_evts"
> +	if [ $server_evts_pid -ne 0 ]; then
> +		kill_wait $server_evts_pid
> +	fi
>  	ip netns exec "$ns1" ./pm_nl_ctl events >> "$server_evts" 2>&1 &
> -	local server_evts_pid=$!
> +	server_evts_pid=$!
>  	sleep 0.5
> -

Minor nit: I would not remove this empty line here.

>  	# Run the server
>  	ip netns exec "$ns1" \
>  	   ./mptcp_connect -s MPTCP -w 300 -p $app_port -l $listen_addr > /dev/null 2>&1 &
> @@ -161,7 +174,6 @@ make_connection()
>  	sleep 1
>  
>  	# Capture client/server attributes from MPTCP connection netlink events
> -	kill_wait $client_evts_pid
>  
>  	local client_token
>  	local client_port
> @@ -173,12 +185,11 @@ make_connection()
>  	client_port=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
>  	client_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\
>  				      "$client_evts")
> -	kill_wait $server_evts_pid
>  	server_token=$(grep "type:1," "$server_evts" |
>  		       sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q')
>  	server_serverside=$(grep "type:1," "$server_evts" |
>  			    sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q')
> -	rm -f "$client_evts" "$server_evts" "$file"
> +	rm -f "$file"

At this point is better to move even 'file' as a global variable, for
the same reason as 'evts'

>  
>  	if [ "$client_token" != "" ] && [ "$server_token" != "" ] && [ "$client_serverside" = 0 ] &&
>  		   [ "$server_serverside" = 1 ]

Thanks!

Paolo

Re: [PATCH mptcp-next v2 1/4] selftests: mptcp: make evts global in userspace_pm

[Geliang Tang]

On Mon, Nov 28, 2022 at 09:04:44AM +0100, Paolo Abeni wrote:
> Hi,
> 
> On Fri, 2022-11-25 at 21:40 +0800, Geliang Tang wrote:
> > @@ -134,18 +140,25 @@ make_connection()
> >  
> >  	# Capture netlink events over the two network namespaces running
> >  	# the MPTCP client and server
> > -	local client_evts
> > -	client_evts=$(mktemp)
> > +	if [ -z "$client_evts" ]; then
> > +		client_evts=$(mktemp)
> > +	fi
> >  	:>"$client_evts"
> > +	if [ $client_evts_pid -ne 0 ]; then
> > +		kill_wait $client_evts_pid
> > +	fi
> >  	ip netns exec "$ns2" ./pm_nl_ctl events >> "$client_evts" 2>&1 &
> > -	local client_evts_pid=$!
> > -	local server_evts
> > -	server_evts=$(mktemp)
> > +	client_evts_pid=$!
> > +	if [ -z "$server_evts" ]; then
> > +		server_evts=$(mktemp)
> > +	fi
> >  	:>"$server_evts"
> > +	if [ $server_evts_pid -ne 0 ]; then
> > +		kill_wait $server_evts_pid
> > +	fi
> >  	ip netns exec "$ns1" ./pm_nl_ctl events >> "$server_evts" 2>&1 &
> > -	local server_evts_pid=$!
> > +	server_evts_pid=$!
> >  	sleep 0.5
> > -
> 
> Minor nit: I would not remove this empty line here.

This has been removed in v3 in the ML.

> 
> >  	# Run the server
> >  	ip netns exec "$ns1" \
> >  	   ./mptcp_connect -s MPTCP -w 300 -p $app_port -l $listen_addr > /dev/null 2>&1 &
> > @@ -161,7 +174,6 @@ make_connection()
> >  	sleep 1
> >  
> >  	# Capture client/server attributes from MPTCP connection netlink events
> > -	kill_wait $client_evts_pid
> >  
> >  	local client_token
> >  	local client_port
> > @@ -173,12 +185,11 @@ make_connection()
> >  	client_port=$(sed --unbuffered -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q' "$client_evts")
> >  	client_serverside=$(sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q'\
> >  				      "$client_evts")
> > -	kill_wait $server_evts_pid
> >  	server_token=$(grep "type:1," "$server_evts" |
> >  		       sed --unbuffered -n 's/.*\(token:\)\([[:digit:]]*\).*$/\2/p;q')
> >  	server_serverside=$(grep "type:1," "$server_evts" |
> >  			    sed --unbuffered -n 's/.*\(server_side:\)\([[:digit:]]*\).*$/\2/p;q')
> > -	rm -f "$client_evts" "$server_evts" "$file"
> > +	rm -f "$file"
> 
> At this point is better to move even 'file' as a global variable, for
> the same reason as 'evts'

I just sent a squash-to patch against v3 to fix this.

Thanks,
-Geliang

> 
> >  
> >  	if [ "$client_token" != "" ] && [ "$server_token" != "" ] && [ "$client_serverside" = 0 ] &&
> >  		   [ "$server_serverside" = 1 ]
> 
> Thanks!
> 
> Paolo
> 

Re: Squash to "selftests: mptcp: listener test for in-kernel PM": Tests Results

[MPTCP CI]

Hi Geliang,

Thank you for your modifications, that's great!

Our CI did some validations and here is its report:

- KVM Validation: normal:
  - Critical: Global Timeout ❌:
  - Task: https://cirrus-ci.com/task/5572756239024128
  - Summary: https://api.cirrus-ci.com/v1/artifact/task/5572756239024128/summary/summary.txt

- KVM Validation: debug:
  - Critical: Global Timeout ❌:
  - Task: https://cirrus-ci.com/task/6698656145866752
  - Summary: https://api.cirrus-ci.com/v1/artifact/task/6698656145866752/summary/summary.txt

Initiator: Patchew Applier
Commits: https://github.com/multipath-tcp/mptcp_net-next/commits/3855a99bfac5


If there are some issues, you can reproduce them using the same environment as
the one used by the CI thanks to a docker image, e.g.:

    $ cd [kernel source code]
    $ docker run -v "${PWD}:${PWD}:rw" -w "${PWD}" --privileged --rm -it \
        --pull always mptcp/mptcp-upstream-virtme-docker:latest \
        auto-debug

For more details:

    https://github.com/multipath-tcp/mptcp-upstream-virtme-docker


Please note that despite all the efforts that have been already done to have a
stable tests suite when executed on a public CI like here, it is possible some
reported issues are not due to your modifications. Still, do not hesitate to
help us improve that ;-)

Cheers,
MPTCP GH Action bot
Bot operated by Matthieu Baerts (Tessares)