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Change-Id: I6a4444e3c193dae437cd7929f4c39aba7b749efa
diff --git a/extensions/app_radgw/rgwx_echodrop.h b/extensions/app_radgw/rgwx_echodrop.h
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+/*********************************************************************************************************
+* 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.								 *
+*********************************************************************************************************/
+
+/*  RADIUS translation plugin, to handle specific RADIUS attributes by either caching them and 
+adding them to a corresponding RADIUS reply, or just dropping the attributes (no conversion to Diameter) */
+/* This extension is a kind of swiss army-knife for interoperability, must be used with care. 
+  All attribute behaviors are specified through the configuration file of the extension
+ */
+
+#include "rgw_common.h"
+
+/* Action associated with an attribute */
+#define ACT_ECHO 1
+#define ACT_DROP 2
+
+/* Result of configuration parsing */
+struct rgwp_config {
+	/* list of attributes and associated actions */
+	struct fd_list attributes;
+	
+	/* Handler to store the echo'ed attributes values */
+	struct session_handler * sess_hdl;
+};
+
+/* An item of the attribute list */
+struct ed_conf_attribute {
+	struct fd_list 	chain;	/* link in the list */
+	
+	struct {
+		unsigned	action 	:2;	/* ACT_ECHO or ACT_DROP */
+		unsigned	vsa	:1;	/* Interpret as Vendor-Specific, and match the vendor id in addition to the code */
+		unsigned	tlv	:1;	/* Interpret as Vendor-Specific with TLV format, and match the type also */
+		unsigned	ext	:1;	/* Interpret as radius extended attribute, and match the ext-type also */
+	};
+	
+	uint32_t	vendor_id; /* vendor id to match when vsa = 1 */
+	uint16_t	extype; /* Ext-Type value to match if ext = 1 */
+	uint8_t		type; /* Type value to match if tlv = 1; */
+	
+	uint8_t		code; /* The attribute code, the list is ordered by this value */
+};
+
+/* For ECHO items, we save a list of these in the session */
+struct ed_saved_attribute {
+	struct fd_list		chain;
+	struct radius_attr_hdr  attr; /* copy of the attribute */
+	/* The data of the attribute follows ... */
+};
+
+
+/* The yacc parser */
+int ed_conffile_parse(char * conffile, struct rgwp_config *cs);