diff --git a/extensions/rt_default/rt_default.h b/extensions/rt_default/rt_default.h
new file mode 100644
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+++ b/extensions/rt_default/rt_default.h
@@ -0,0 +1,86 @@
+/*********************************************************************************************************
+* Software License Agreement (BSD License)                                                               *
+* Author: Sebastien Decugis <sdecugis@freediameter.net>							 *
+*													 *
+* Copyright (c) 2011, WIDE Project and NICT								 *
+* 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:						 *
+* 													 *
+* * Redistributions of source code must retain the above 						 *
+*   copyright notice, this list of conditions and the 							 *
+*   following disclaimer.										 *
+*    													 *
+* * 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.								 *
+* 													 *
+* * Neither the name of the WIDE Project or NICT nor the 						 *
+*   names of its contributors may be used to endorse or 						 *
+*   promote products derived from this software without 						 *
+*   specific prior written permission of WIDE Project and 						 *
+*   NICT.												 *
+* 													 *
+* 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.								 *
+*********************************************************************************************************/
+
+/* Header file for the rt_default extension. 
+ *
+ *  See the rt_default.conf.sample file for the format of the configuration file.
+ */
+ 
+/* FreeDiameter's common include file */
+#include <freeDiameter/extension.h>
+
+/* Host configuration for this specific extension */
+#include <rt_default-host.h>
+
+/* Parse the configuration file */
+int rtd_conf_handle(char * conffile);
+
+/* Initialize the rules repository */
+int rtd_init(void);
+
+/* Destroy the rules repository */
+void rtd_fini(void);
+
+/* Some constants definitions */
+enum rtd_crit_type {
+	RTD_CRI_ALL	= 0,
+	RTD_CRI_OH,
+	RTD_CRI_OR,
+	RTD_CRI_DH,
+	RTD_CRI_DR,
+	RTD_CRI_UN,
+	RTD_CRI_SI,
+	
+	RTD_CRI_MAX
+};
+
+enum rtd_targ_type {
+	RTD_TAR_ID     = 0,
+	RTD_TAR_REALM,
+	
+	RTD_TAR_MAX
+};
+
+#define RTD_CRIT_REG	0x1
+#define RTD_TARG_REG	0x2
+
+/* Add a rule */
+int rtd_add(enum rtd_crit_type ct, char * criteria, enum rtd_targ_type tt, char * target, int score, int flags);
+
+/* Process a message & peer list through the rules repository, updating the scores */
+int rtd_process( struct msg * msg, struct fd_list * candidates );
+
+/* For debug: dump the rule repository */
+void rtd_dump(void);