[PATCH mptcp-net 08/10] selftests: mptcp: join: validate event numbers

Matthieu Baerts (NGI0) posted 10 patches 3 months, 1 week ago
There is a newer version of this series
[PATCH mptcp-net 08/10] selftests: mptcp: join: validate event numbers
Posted by Matthieu Baerts (NGI0) 3 months, 1 week ago
This test extends "delete and re-add" to validate the previous commit:
the number of MPTCP events are checked to make sure there are no
duplicated or unexpected ones.

A new helper has been introduced to easily check these events. The
missing events have been added to the lib.

The 'Fixes' tag here below is the same as the one from the previous
commit: this patch here is not fixing anything wrong in the selftests,
but it validates the previous fix for an issue introduced by this commit
ID.

Fixes: b911c97c7dc7 ("mptcp: add netlink event support")
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh | 74 ++++++++++++++++++++++++-
 tools/testing/selftests/net/mptcp/mptcp_lib.sh  |  4 ++
 2 files changed, 75 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index af722227b9cd..9e064c518fb8 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -446,12 +446,17 @@ reset_with_fail()
 	fi
 }
 
+start_events()
+{
+	mptcp_lib_events "${ns1}" "${evts_ns1}" evts_ns1_pid
+	mptcp_lib_events "${ns2}" "${evts_ns2}" evts_ns2_pid
+}
+
 reset_with_events()
 {
 	reset "${1}" || return 1
 
-	mptcp_lib_events "${ns1}" "${evts_ns1}" evts_ns1_pid
-	mptcp_lib_events "${ns2}" "${evts_ns2}" evts_ns2_pid
+	start_events
 }
 
 reset_with_tcp_filter()
@@ -3406,6 +3411,36 @@ userspace_pm_chk_get_addr()
 	fi
 }
 
+# $1: ns ; $2: event type ; $3: count
+chk_evt_nr()
+{
+	local ns=${1}
+	local evt_name="${2}"
+	local exp="${3}"
+
+	local evts="${evts_ns1}"
+	local evt="${!evt_name}"
+	local count
+
+	evt_name="${evt_name:16}" # without MPTCP_LIB_EVENT_
+	[ "${ns}" == "ns2" ] && evts="${evts_ns2}"
+
+	print_check "event ${ns} ${evt_name} (${exp})"
+
+	if [[ "${evt_name}" = "LISTENER_"* ]] &&
+	   ! mptcp_lib_kallsyms_has "mptcp_event_pm_listener$"; then
+		print_skip "event not supported"
+		return
+	fi
+
+	count=$(grep -cw "type:${evt}" "${evts}")
+	if [ "${count}" != "${exp}" ]; then
+		fail_test "got ${count} events, expected ${exp}"
+	else
+		print_ok
+	fi
+}
+
 userspace_tests()
 {
 	# userspace pm type prevents add_addr
@@ -3648,6 +3683,7 @@ endpoint_tests()
 
 	if reset_with_tcp_filter "delete and re-add" ns2 10.0.3.2 REJECT OUTPUT &&
 	   mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
+		start_events
 		pm_nl_set_limits $ns1 0 3
 		pm_nl_set_limits $ns2 0 3
 		pm_nl_add_endpoint $ns2 10.0.1.2 id 1 dev ns2eth1 flags subflow
@@ -3706,13 +3742,29 @@ endpoint_tests()
 
 		mptcp_lib_kill_wait $tests_pid
 
+		kill_events_pids
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_CREATED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 3
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 3
+
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 0
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 0
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 4 # one has been closed before estab
+
 		join_syn_tx=6 \
 			chk_join_nr 5 5 5
 		chk_rm_nr 3 3
 	fi
 
 	# remove and re-add
-	if reset "delete re-add signal" &&
+	if reset_with_events "delete re-add signal" &&
 	   mptcp_lib_kallsyms_has "subflow_rebuild_header$"; then
 		pm_nl_set_limits $ns1 0 3
 		pm_nl_set_limits $ns2 3 3
@@ -3753,6 +3805,22 @@ endpoint_tests()
 		chk_mptcp_info subflows 3 subflows 3
 		mptcp_lib_kill_wait $tests_pid
 
+		kill_events_pids
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_LISTENER_CREATED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_CREATED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 0
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 4
+		chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 2
+
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 5
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 3
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 4
+		chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 2
+
 		join_connect_err=1 \
 			chk_join_nr 4 4 4
 		chk_add_nr 5 5
diff --git a/tools/testing/selftests/net/mptcp/mptcp_lib.sh b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
index 438280e68434..4578a331041e 100644
--- a/tools/testing/selftests/net/mptcp/mptcp_lib.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_lib.sh
@@ -12,10 +12,14 @@ readonly KSFT_SKIP=4
 readonly KSFT_TEST="${MPTCP_LIB_KSFT_TEST:-$(basename "${0}" .sh)}"
 
 # These variables are used in some selftests, read-only
+declare -rx MPTCP_LIB_EVENT_CREATED=1           # MPTCP_EVENT_CREATED
+declare -rx MPTCP_LIB_EVENT_ESTABLISHED=2       # MPTCP_EVENT_ESTABLISHED
+declare -rx MPTCP_LIB_EVENT_CLOSED=3            # MPTCP_EVENT_CLOSED
 declare -rx MPTCP_LIB_EVENT_ANNOUNCED=6         # MPTCP_EVENT_ANNOUNCED
 declare -rx MPTCP_LIB_EVENT_REMOVED=7           # MPTCP_EVENT_REMOVED
 declare -rx MPTCP_LIB_EVENT_SUB_ESTABLISHED=10  # MPTCP_EVENT_SUB_ESTABLISHED
 declare -rx MPTCP_LIB_EVENT_SUB_CLOSED=11       # MPTCP_EVENT_SUB_CLOSED
+declare -rx MPTCP_LIB_EVENT_SUB_PRIORITY=13     # MPTCP_EVENT_SUB_PRIORITY
 declare -rx MPTCP_LIB_EVENT_LISTENER_CREATED=15 # MPTCP_EVENT_LISTENER_CREATED
 declare -rx MPTCP_LIB_EVENT_LISTENER_CLOSED=16  # MPTCP_EVENT_LISTENER_CLOSED
 

-- 
2.45.2