route.h
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 /*
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  * Copyright (C) 2001-2003 FhG Fokus
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  *
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  * This file is part of Kamailio, a free SIP server.
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  *
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  * Kamailio is free software; you can redistribute it and/or modify
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  * 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
  *
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  * Kamailio is distributed in the hope that it will be useful,
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  * 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 
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  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
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  */
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 /*!
 * \file
 * \brief Kamailio core :: Message routing
 * \ingroup core
 * Module: \ref core
 */
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 #ifndef route_h
 #define route_h
 
 #include <sys/types.h>
 #include <regex.h>
 #include <netdb.h>
 
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 #include "config.h"
 #include "error.h"
 #include "route_struct.h"
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 #include "action.h"
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 #include "parser/msg_parser.h"
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 #include "str_hash.h"
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 /*#include "cfg_parser.h" */
 
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 /* Various types of route sections, make sure that the values defined in the
  * macros below occupy disjunct bits so that they can also be used as flags
  */
 #define REQUEST_ROUTE (1 << 0)
 #define FAILURE_ROUTE (1 << 1)
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 #define TM_ONREPLY_ROUTE (1 << 2)
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 #define BRANCH_ROUTE  (1 << 3)
 #define ONSEND_ROUTE  (1 << 4)
 #define ERROR_ROUTE   (1 << 5)
 #define LOCAL_ROUTE   (1 << 6)
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 #define CORE_ONREPLY_ROUTE (1 << 7)
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 #define BRANCH_FAILURE_ROUTE (1 << 8)
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 #define ONREPLY_ROUTE (TM_ONREPLY_ROUTE|CORE_ONREPLY_ROUTE)
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 #define EVENT_ROUTE   REQUEST_ROUTE
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 #define ANY_ROUTE     (0xFFFFFFFF)
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 /* The value of this variable is one of the route types defined above and it
  * determines the type of the route being executed, module functions can use
  * this value to determine the type of the route they are being executed in
  */
 extern int route_type;
 
 #define set_route_type(type) \
 	do {					 \
 		route_type = (type); \
 	} while(0)
 
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 #define get_route_type()	route_type
 
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 #define is_route_type(type) (route_type & (type))
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 struct route_list{
 	struct action** rlist;
 	int idx; /* first empty entry */ 
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 	int entries; /* total number of entries */
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 	struct str_hash_table names; /* name to route index mappings */
 };
 
 
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 /* main "script table" */
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 extern struct route_list main_rt;
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 /* main reply route table */
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 extern struct route_list onreply_rt;
 extern struct route_list failure_rt;
 extern struct route_list branch_rt;
 extern struct route_list onsend_rt;
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 extern struct route_list event_rt;
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 /* script optimization level */
 extern int scr_opt_lev;
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 int init_routes(void);
 void destroy_routes(void);
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 int route_get(struct route_list* rt, char* name);
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 int route_lookup(struct route_list* rt, char* name);
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 void push(struct action* a, struct action** head);
 int add_actions(struct action* a, struct action** head);
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 void print_rls(void);
 int fix_rls(void);
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 int eval_expr(struct run_act_ctx* h, struct expr* e, struct sip_msg* msg);
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 /* fixup functions*/
 int fix_actions(struct action* a);
 int fix_expr(struct expr* exp);
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 #endif