text: /*********************************************************************************************************
  * 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.								 *
  *********************************************************************************************************/
  
  /* 
   * Configurable routing of messages for freeDiameter.
   */
  
  #include "app_redir.h"
  
  static struct fd_rt_fwd_hdl * ard_fwd_cb = NULL;
  
  /* entry point */
  static int ard_entry(char * conffile)
  {
  	TRACE_ENTRY("%p", conffile);
  	
  	/* Parse the configuration file */
  	CHECK_FCT( ard_conf_handle(conffile) );
  	
  	/* Resolve the dictionary objects we use */
  	CHECK_FCT( fd_dict_search ( fd_g_config->cnf_dict, DICT_AVP, AVP_BY_NAME, "Redirect-Host", &avp_Redirect_Host, ENOENT ));
  	CHECK_FCT( fd_dict_search ( fd_g_config->cnf_dict, DICT_AVP, AVP_BY_NAME, "Redirect-Host-Usage", &avp_Redirect_Host_Usage, ENOENT ));
  	CHECK_FCT( fd_dict_search ( fd_g_config->cnf_dict, DICT_AVP, AVP_BY_NAME, "Redirect-Max-Cache-Time", &avp_Redirect_Max_Cache_Time, ENOENT ));
  	
  	/* Register the proxy callback */
  	CHECK_FCT( fd_rt_fwd_register(ard_rule_apply, NULL, RT_FWD_REQ, &ard_fwd_cb) );
  	
  	/* We're done */
  	return 0;
  }
  
  /* Unload */
  void fd_ext_fini(void)
  {
  	TRACE_ENTRY();
  	
  	/* Unregister the proxy callback */
  	if (ard_fwd_cb) {
  		CHECK_FCT_DO( fd_rt_fwd_unregister(ard_fwd_cb, NULL), );
  	}
  	
  	/* Destroy all rules */
  	while (!FD_IS_LIST_EMPTY(&ard_conf->rules)) {
  		struct ard_rule * r = ard_conf->rules.next->o;
  		fd_list_unlink(&r->chain);
  		while (!FD_IS_LIST_EMPTY(&r->criteria)) {
  			struct ard_criteria * c = r->criteria.next->o;
  			fd_list_unlink(&c->chain);
  			if (c->is_regex) {
  				regfree(&c->preg);
  			}
  			free(c->s);
  			free(c);
  		}
  		while (!FD_IS_LIST_EMPTY(&r->targets)) {
  			struct ard_target * t = r->targets.next->o;
  			fd_list_unlink(&t->chain);
  			free(t->s);
  			free(t);
  		}
  		free(r);
  	}
  	
  	/* Done */
  	return ;
  }
  
  EXTENSION_ENTRY("app_redirect", ard_entry);
  