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selftests: mptcp: listener test for userspace PM

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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: Geliang Tang <geliang.tang@suse.com>
Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Geliang Tang 2022-11-30 15:06:31 +01:00 committed by Jakub Kicinski
parent 1cc94ac1af
commit 6c73008aa3
1 changed files with 76 additions and 0 deletions
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76
tools/testing/selftests/net/mptcp/userspace_pm.sh
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@ -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