diff --git a/hook.sh b/hook.sh
index e8f65b8..ad20d3e 100755
--- a/hook.sh
+++ b/hook.sh
@@ -4,6 +4,9 @@
 if [ -n $OPENVPN_DBFILE ]; then
 	OPENVPN_DBFILE="ovpn_session.db"
 fi
+if [ -n $OPENVPN_MAXCONN_PER_USER ]; then
+	OPENVPN_MAXCONN_PER_USER=3
+fi
 
 db_query(){
 	result=$($SQLITE $OPENVPN_DBFILE "$1" 2>&1)
@@ -17,4 +20,20 @@
 	return 0
 }
 
+create_table(){
+
+}
+
 # db_query 'insert into a123 (number) values (1);'
+case $script_type in
+	up)
+		create_table
+		;;
+	client-connect)
+		;;
+	learn-address)
+		;;
+	client-disconnect)
+		;;
+	down)
+