Commit 6c73008a authored by Geliang Tang's avatar Geliang Tang Committed by Jakub Kicinski
Browse files

selftests: mptcp: listener test for userspace PM 



This patch adds test coverage for listening sockets created by userspace
processes.

It adds a new test named test_listener() and a new verifying helper
verify_listener_events(). The new output looks like this:

 CREATE_SUBFLOW 10.0.2.2 (ns2) => 10.0.2.1 (ns1)              [OK]
 DESTROY_SUBFLOW 10.0.2.2 (ns2) => 10.0.2.1 (ns1)             [OK]
 MP_PRIO TX                                                   [OK]
 MP_PRIO RX                                                   [OK]
 CREATE_LISTENER 10.0.2.2:37106				      [OK]
 CLOSE_LISTENER 10.0.2.2:37106				      [OK]

Signed-off-by: default avatarGeliang Tang <geliang.tang@suse.com>
Reviewed-by: default avatarMat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: default avatarMatthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 1cc94ac1

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

+76 −0
Original line number Diff line number Diff line
@@ -11,6 +11,8 @@ ANNOUNCED=6 # MPTCP_EVENT_ANNOUNCED 
REMOVED=7          # MPTCP_EVENT_REMOVED

SUB_ESTABLISHED=10 # MPTCP_EVENT_SUB_ESTABLISHED

SUB_CLOSED=11      # MPTCP_EVENT_SUB_CLOSED

LISTENER_CREATED=15 #MPTCP_EVENT_LISTENER_CREATED

LISTENER_CLOSED=16  #MPTCP_EVENT_LISTENER_CLOSED



AF_INET=2

AF_INET6=10
@@ -781,11 +783,85 @@ test_prio() 
	fi

}



verify_listener_events()

{

	local evt=$1

	local e_type=$2

	local e_family=$3

	local e_saddr=$4

	local e_sport=$5

	local type

	local family

	local saddr

	local sport



	if [ $e_type = $LISTENER_CREATED ]; then

		stdbuf -o0 -e0 printf "CREATE_LISTENER %s:%s\t\t\t\t\t"\

			$e_saddr $e_sport

	elif [ $e_type = $LISTENER_CLOSED ]; then

		stdbuf -o0 -e0 printf "CLOSE_LISTENER %s:%s\t\t\t\t\t"\

			$e_saddr $e_sport

	fi



	type=$(grep "type:$e_type," $evt |

	       sed --unbuffered -n 's/.*\(type:\)\([[:digit:]]*\).*$/\2/p;q')

	family=$(grep "type:$e_type," $evt |

		 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 ] && [ $family = $AF_INET6 ]; then

		saddr=$(grep "type:$e_type," $evt |

			sed --unbuffered -n 's/.*\(saddr6:\)\([0-9a-f:.]*\).*$/\2/p;q')

	else

		saddr=$(grep "type:$e_type," $evt |

			sed --unbuffered -n 's/.*\(saddr4:\)\([0-9.]*\).*$/\2/p;q')

	fi



	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

	stdbuf -o0 -e0 printf "[FAIL]\n"

	exit 1

}



test_listener()

{

	# 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 $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\

		$client_addr_id > /dev/null 2>&1

	sleep 0.5



	# CREATE_SUBFLOW from server to client machine

	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



	# Delete the listener from the client ns, if one was created

	kill_wait $listener_pid



	verify_listener_events $client_evts $LISTENER_CLOSED $AF_INET 10.0.2.2 $client4_port

}



make_connection

make_connection "v6"

test_announce

test_remove

test_subflows

test_prio

test_listener



exit 0