selftests: mptcp: declare event macros in mptcp_lib

MPTCP event macros (SUB_ESTABLISHED, LISTENER_CREATED, LISTENER_CLOSED),
and the protocol family macros (AF_INET, AF_INET6) are defined in both
mptcp_join.sh and userspace_pm.sh. In order not to duplicate code, this
patch declares them all in mptcp_lib.sh with MPTCP_LIB_ prefixs.

Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://lore.kernel.org/r/20240308-upstream-net-next-20240308-selftests-mptcp-unification-v1-14-4f42c347b653@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

Author: Geliang Tang

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

@@ -2785,23 +2785,16 @@ backup_tests()
 	fi
 }
 
-SUB_ESTABLISHED=10 # MPTCP_EVENT_SUB_ESTABLISHED
-LISTENER_CREATED=15 #MPTCP_EVENT_LISTENER_CREATED
-LISTENER_CLOSED=16  #MPTCP_EVENT_LISTENER_CLOSED
-
-AF_INET=2
-AF_INET6=10
-
 verify_listener_events()
 {
 	local e_type=$2
 	local e_saddr=$4
 	local e_sport=$5
 	local name
 
-	if [ $e_type = $LISTENER_CREATED ]; then
+	if [ $e_type = $MPTCP_LIB_EVENT_LISTENER_CREATED ]; then
 		name="LISTENER_CREATED"
-	elif [ $e_type = $LISTENER_CLOSED ]; then
+	elif [ $e_type = $MPTCP_LIB_EVENT_LISTENER_CLOSED ]; then
 		name="LISTENER_CLOSED "
 	else
 		name="$e_type"
@@ -2856,8 +2849,10 @@ add_addr_ports_tests()
 		chk_add_nr 1 1 1
 		chk_rm_nr 1 1 invert
 
-		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
+		verify_listener_events $evts_ns1 $MPTCP_LIB_EVENT_LISTENER_CREATED \
+				       $MPTCP_LIB_AF_INET 10.0.2.1 10100
+		verify_listener_events $evts_ns1 $MPTCP_LIB_EVENT_LISTENER_CLOSED \
+				       $MPTCP_LIB_AF_INET 10.0.2.1 10100
 		kill_events_pids
 	fi
 
@@ -3463,11 +3458,11 @@ userspace_tests()
 		userspace_pm_chk_get_addr "${ns1}" "10" "id 10 flags signal 10.0.2.1"
 		userspace_pm_chk_get_addr "${ns1}" "20" "id 20 flags signal 10.0.3.1"
 		userspace_pm_rm_addr $ns1 10
-		userspace_pm_rm_sf $ns1 "::ffff:10.0.2.1" $SUB_ESTABLISHED
+		userspace_pm_rm_sf $ns1 "::ffff:10.0.2.1" $MPTCP_LIB_EVENT_SUB_ESTABLISHED
 		userspace_pm_chk_dump_addr "${ns1}" \
 			"id 20 flags signal 10.0.3.1" "after rm_addr 10"
 		userspace_pm_rm_addr $ns1 20
-		userspace_pm_rm_sf $ns1 10.0.3.1 $SUB_ESTABLISHED
+		userspace_pm_rm_sf $ns1 10.0.3.1 $MPTCP_LIB_EVENT_SUB_ESTABLISHED
 		userspace_pm_chk_dump_addr "${ns1}" "" "after rm_addr 20"
 		chk_rm_nr 2 2 invert
 		chk_mptcp_info subflows 0 subflows 0
@@ -3494,7 +3489,7 @@ userspace_tests()
 			"subflow"
 		userspace_pm_chk_get_addr "${ns2}" "20" "id 20 flags subflow 10.0.3.2"
 		userspace_pm_rm_addr $ns2 20
-		userspace_pm_rm_sf $ns2 10.0.3.2 $SUB_ESTABLISHED
+		userspace_pm_rm_sf $ns2 10.0.3.2 $MPTCP_LIB_EVENT_SUB_ESTABLISHED
 		userspace_pm_chk_dump_addr "${ns2}" \
 			"" \
 			"after rm_addr 20"

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

@@ -8,6 +8,17 @@ readonly KSFT_SKIP=4
 # shellcheck disable=SC2155 # declare and assign separately
 readonly KSFT_TEST="${MPTCP_LIB_KSFT_TEST:-$(basename "${0}" .sh)}"
 
+# These variables are used in some selftests, read-only
+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_LISTENER_CREATED=15 # MPTCP_EVENT_LISTENER_CREATED
+declare -rx MPTCP_LIB_EVENT_LISTENER_CLOSED=16  # MPTCP_EVENT_LISTENER_CLOSED
+
+declare -rx MPTCP_LIB_AF_INET=2
+declare -rx MPTCP_LIB_AF_INET6=10
+
 MPTCP_LIB_SUBTESTS=()
 MPTCP_LIB_SUBTESTS_DUPLICATED=0
 MPTCP_LIB_TEST_COUNTER=0

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

@@ -19,15 +19,15 @@ if ! mptcp_lib_has_file '/proc/sys/net/mptcp/pm_type'; then
 fi
 mptcp_lib_check_tools ip
 
-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
+ANNOUNCED=${MPTCP_LIB_EVENT_ANNOUNCED}
+REMOVED=${MPTCP_LIB_EVENT_REMOVED}
+SUB_ESTABLISHED=${MPTCP_LIB_EVENT_SUB_ESTABLISHED}
+SUB_CLOSED=${MPTCP_LIB_EVENT_SUB_CLOSED}
+LISTENER_CREATED=${MPTCP_LIB_EVENT_LISTENER_CREATED}
+LISTENER_CLOSED=${MPTCP_LIB_EVENT_LISTENER_CLOSED}
+
+AF_INET=${MPTCP_LIB_AF_INET}
+AF_INET6=${MPTCP_LIB_AF_INET6}
 
 file=""
 server_evts=""