IKEv1 XAuth: Added plugin support for XAuth, which allows us to have plugins to talk to servers with different quirks for XAuth authentication.

src/libcharon/daemon.h

@@ -149,6 +149,7 @@ typedef struct daemon_t daemon_t;
 #include <sa/shunt_manager.h>
 #include <config/backend_manager.h>
 #include <sa/authenticators/eap/eap_manager.h>
+#include <sa/authenticators/xauth/xauth_manager.h>
 
 #ifdef ME
 #include <sa/connect_manager.h>
@@ -235,6 +236,11 @@ struct daemon_t {
 	 */
 	eap_manager_t *eap;
 
+	/**
+	 * XAuth manager to maintain registered XAuth methods
+	 */
+	xauth_manager_t *xauth;
+
 #ifdef ME
 	/**
 	 * Connect manager