Add a function to allow actions to be used from extension scripts

git-svn-id: https://shorewall.svn.sourceforge.net/svnroot/shorewall/trunk@4682 fbd18981-670d-0410-9b5c-8dc0c1a9a2bb

Shorewall/lib.actions

@@ -25,6 +25,22 @@
 # (either explicitly specified or defaulted).
 #
 
+#
+# Function to create/find appropriate action chain -- callable in user scripts
+# that want to invoke an action.
+#
+get_actionchain() # $1 = Action from a rule, including log level and tag if any
+{
+    if list_search ${1%%:*} $ACTIONS; then
+	if ! list_search $1 $USEDACTIONS; then
+	    createactionchain $1
+	    USEDACTIONS="$USEDACTIONS $1"
+	fi
+
+	echo $(find_logactionchain $1)
+    fi
+}
+
 #
 # Add one Filter Rule from an action -- Helper function for the action file processor
 #
@@ -716,8 +732,8 @@ process_actions2() {
 }
 
 #
-# process_action3() is in the compiler. What follows is called from that function when the action
+# process_actions3() is in the compiler. What follows is called from that function when the action
-#                   being processed is not a builtin.
+#                    being processed is not a builtin.
 
 process_action3() {