implementation of an CFG attribute framework, currently supporting virtual IPs

updated ipsec.conf sourceip parameter to support
	CIDR notatation to serve from a pool
	%poolname to query a separate (database?) pool

src/charon/daemon.h

@@ -30,6 +30,9 @@
  * @defgroup config config
  * @ingroup charon
  *
+ * @defgroup attributes attributes
+ * @ingroup config
+ *
  * @defgroup control control
  * @ingroup charon
  *
@@ -157,6 +160,7 @@ typedef struct daemon_t daemon_t;
 #include <bus/listeners/sys_logger.h>
 #include <sa/ike_sa_manager.h>
 #include <config/backend_manager.h>
+#include <config/attributes/attribute_manager.h>
 #include <credentials/credential_manager.h>
 #include <sa/authenticators/eap/eap_manager.h>
 #include <plugins/plugin_loader.h>
@@ -212,6 +216,11 @@ struct daemon_t {
 	 */
 	backend_manager_t *backends;
 	
+	/**
+	 * Manager IKEv2 cfg payload attributes
+	 */
+	attribute_manager_t *attributes;
+	
 	/**
 	 * Manager for the credential backends
 	 */