diff --git a/extensions/app_diameap/plugins.h b/extensions/app_diameap/plugins.h
new file mode 100644
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+++ b/extensions/app_diameap/plugins.h
@@ -0,0 +1,82 @@
+/*****************************************************************************************************
+ * Software License Agreement (BSD License)
+ * Author : Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>
+ *
+ * Copyright (c) 2009-2010, Souheil Ben Ayed, Teraoka Laboratory of Keio University, and the WIDE Project
+ * All rights reserved.
+ *
+ * Redistribution and use of this software in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *    This product includes software developed by Souheil Ben Ayed <souheil@tera.ics.keio.ac.jp>.
+ *
+ * 4. Neither the name of Souheil Ben Ayed, Teraoka Laboratory of Keio University or the WIDE Project nor the
+ *    names of its contributors may be used to endorse or promote products
+ *    derived from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************************************/
+
+
+#ifndef _PLUGINS_H
+#define _PLUGINS_H
+
+#include "libdiameap.h"
+#include "libcrypt.h"
+
+
+
+
+/* Macro that define the register functions of an EAP method */
+#define REGISTER_METHOD(_methodName, _configFunction, _initFunction, _initPickUpFunction, _buildReqFunction, _getTimeoutFunction, _checkFunction, _processFunction, _isDoneFunction, _getKeyFunction, _unregisterFunction, _datafreeFunction  ) \
+static struct register_plugin *registerplugin = NULL;	\
+static int isregistered = 0;	\
+int diameap_plugin_register() {	\
+		if (!isregistered){	\
+			registerplugin = malloc (sizeof(struct register_plugin)); \
+			if(registerplugin==NULL) \
+				fprintf(stderr,"[DiamEAP extension] Error in registering plug-in\t%s\n",strerror(errno)); \
+			memset(registerplugin, 0, sizeof(struct register_plugin)); \
+			if(_configFunction) registerplugin->configure=_configFunction;	\
+			if(_initFunction) registerplugin->init=_initFunction;	\
+			if(_initPickUpFunction) registerplugin->initPickUp=_initPickUpFunction;	\
+			if(_buildReqFunction) registerplugin->buildReq=_buildReqFunction;	\
+			if(_getTimeoutFunction) registerplugin->getTimeout=_getTimeoutFunction;	\
+			if(_checkFunction) registerplugin->check=_checkFunction;	\
+			if(_processFunction) registerplugin->process=_processFunction;	\
+			if(_isDoneFunction) registerplugin->isDone=_isDoneFunction;	\
+			if(_getKeyFunction) registerplugin->getKey=_getKeyFunction;	\
+			if(_unregisterFunction) registerplugin->unregister=_unregisterFunction;	\
+			if(_datafreeFunction) registerplugin->datafree=_datafreeFunction;	\
+			isregistered++; \
+		}else{ \
+			 fprintf(stderr, "Cannot register the " _methodName " plugin twice\n");	\
+			return EINVAL; \
+		} \
+		return 0; \
+	}	\
+int diameap_plugin_objects(struct register_plugin ** rplugin){ \
+*rplugin=registerplugin; \
+return 0; \
+} \
+
+
+#endif /*_PLUGINS_H*/