routing.h

/*
 * $Id$
 *
 * Copyright (C) 2005-2009 Voice Sistem SRL
 *
 * This file is part of Kamailio, a free SIP server.
 *
 * Kamailio is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * Kamailio is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * History:
 * ---------
 *  2005-02-20  first version (cristian)
 *  2005-02-27  ported to 0.9.0 (bogdan)
 */


#ifndef routing_h
#define routing_h

#include "../../str.h"
#include "../../usr_avp.h"
#include "prefix_tree.h"
#include "dr_time.h"

#define RG_HASH_SIZE
#define RG_INIT_LEN 4;

/* the buckets for the rt_data rg_hash */
typedef struct hb_ {
        int rgid;
        ptree_t *pt;
        struct hb_*next;
} hb_t;

/* routing data is comprised of:
        - a list of PSTN gw
        - a hash over routing groups containing 
        pointers to the coresponding prefix trees
*/
typedef struct rt_data_ {
        /* list of PSTN gw */
        pgw_t *pgw_l;
        /* list of IP addr for PSTN gw */
        pgw_addr_t *pgw_addr_l;
        /* default routing list for prefixless rules */
        ptree_node_t noprefix;
        /* hash table with routing prefixes */
        ptree_t *pt;
}rt_data_t;

typedef struct _dr_group {
        /* 0 - use grp ; 1 - use AVP */
        int type;
        union {
                unsigned int grp_id;
                struct _avp_id{
                        int_str name;
                        unsigned short type;
                }avp_id;
        }u;
} dr_group_t;

/* init new rt_data structure */
rt_data_t*
build_rt_data( void );


/* add a PSTN gw in the list */
int
add_dst(
        rt_data_t*,
        /* id */
        int ,
        /* ip address */ 
        char*,
        /* strip len */
        int,
        /* pri prefix */
        char*,
        /* dst type*/
        int,
        /* dst attrs*/
        char*
        );

/* build a routing info list element */
rt_info_t*
build_rt_info(
        int priority,
        tmrec_t* time,
        /* ser routing table id */
        int route_id,
        /* list of destinations indexes */
        char* dstlst,
        pgw_t* pgw_l
);

void
del_pgw_list(
                pgw_t *pgw_l
                );

void 
free_rt_data(
                rt_data_t*,
                int
                );
#endif