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kamailio/usr_avp.h

235 lines
7.2 KiB

/*
* $Id$
*
* Copyright (C) 2001-2003 FhG Fokus
*
* This file is part of ser, a free SIP server.
*
* ser 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
*
* For a license to use the ser software under conditions
* other than those described here, or to purchase support for this
* software, please contact iptel.org by e-mail at the following addresses:
* info@iptel.org
*
* ser 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:
* ---------
* 2004-07-21 created (bogdan)
* 2004-11-14 global aliases support added
* 2005-02-14 list with FLAGS USAGE added (bogdan)
*/
#ifndef _SER_USR_AVP_H_
#define _SER_USR_AVP_H_
#include <sys/types.h>
#include <regex.h>
/*
* LIST with the allocated flags, their meaning and owner
* flag no. owner description
* -------------------------------------------------------
* 0 avp_core avp has a string name
* 1 avp_core avp has a string value
* 2 avp_core regex search in progress
* 3 avpops module avp was loaded from DB
* 4 lcr module contact avp qvalue change
* 5 core avp is in user list
* 6 core avp is in domain list
* 7 core avp is in global list
* 8 core avp is in the from avp list
* 9 core avp is in the to avp list
* 10 core avp name with positive index
* 11 core avp name with negative index
*/
#include "str.h"
#define AVP_UID "uid" /* Unique user identifier */
#define AVP_DID "did" /* Unique domain identifier */
#define AVP_REALM "digest_realm" /* Digest realm */
#define AVP_FR_TIMER "fr_timer" /* Value of final response timer */
#define AVP_FR_INV_TIMER "fr_inv_timer" /* Value of final response invite timer */
#define AVP_RPID "rpid" /* Remote-Party-ID */
#define AVP_GFLAGS "gflags" /* global flags */
struct str_int_data {
str name;
int val;
};
struct str_str_data {
str name;
str val;
};
typedef union {
int n;
str s;
regex_t* re;
} int_str;
#define avp_id_t unsigned short
#define avp_flags_t unsigned int
#define avp_name_t int_str
#define avp_value_t int_str
#define avp_index_t unsigned short
union usr_avp_data{
void *p; /* forces alignment */
long l;
char data[sizeof(void*)]; /* used to access other types, var length */
};
typedef struct usr_avp {
avp_id_t id;
/* Flags that are kept for the AVP lifetime */
avp_flags_t flags;
struct usr_avp *next;
union usr_avp_data d; /* var length */
} avp_t;
typedef avp_t* avp_list_t;
/* AVP identification */
typedef struct avp_ident {
avp_flags_t flags;
avp_name_t name;
avp_index_t index;
} avp_ident_t;
/*
* AVP search state
*/
struct search_state {
avp_flags_t flags; /* Type of search and additional flags */
avp_id_t id;
avp_name_t name;
avp_t* avp; /* Current AVP */
// regex_t* search_re; /* Compiled regular expression */
};
/* avp aliases structs*/
typedef struct avp_spec {
avp_flags_t type;
avp_name_t name;
avp_index_t index;
} avp_spec_t;
/* AVP types */
#define AVP_NAME_STR (1<<0)
#define AVP_VAL_STR (1<<1)
#define AVP_NAME_RE (1<<2)
/* AVP classes */
#define AVP_CLASS_URI (1<<4)
#define AVP_CLASS_USER (1<<5)
#define AVP_CLASS_DOMAIN (1<<6)
#define AVP_CLASS_GLOBAL (1<<7)
/* AVP track (either from or to) */
#define AVP_TRACK_FROM (1<<8)
#define AVP_TRACK_TO (1<<9)
#define AVP_TRACK_ALL (AVP_TRACK_FROM|AVP_TRACK_TO)
#define AVP_CLASS_ALL (AVP_CLASS_URI|AVP_CLASS_USER|AVP_CLASS_DOMAIN|AVP_CLASS_GLOBAL)
/* AVP name index */
#define AVP_INDEX_FORWARD (1<<10)
#define AVP_INDEX_BACKWARD (1<<11)
#define AVP_INDEX_ALL (AVP_INDEX_FORWARD | AVP_INDEX_BACKWARD)
/* AVP DB flag used by avpops module - defined in avpops
* - kept here for reference */
// #define AVP_IS_IN_DB (1<<12)
#define AVP_CUSTOM_FLAGS 13
#define GALIAS_CHAR_MARKER '$'
#define AVP_NAME_VALUE_MASK 0x0007
#define AVP_CORE_MASK 0x00ff
#define AVP_SCRIPT_MASK 0xff00
#define avp_core_flags(f) ((f)&0x00ff)
#define avp_script_flags(f) (((f)<<8)&0xff00)
#define avp_get_script_flags(f) (((f)&0xff00)>>8)
#define is_avp_str_name(a) ((a)->flags&AVP_NAME_STR)
#define is_avp_str_val(a) ((a)->flags&AVP_VAL_STR)
#define AVP_IS_ASSIGNABLE(ident) ( ((ident).flags & AVP_NAME_RE) == 0 && (((ident).flags & AVP_NAME) == 0 || (((ident)->flags & AVP_NAME) && (ident).name.s.len)) )
/* Initialize memory structures */
int init_avps(void);
/* add avp to the list of avps */
int add_avp(avp_flags_t flags, avp_name_t name, avp_value_t val);
int add_avp_before(avp_t *avp, avp_flags_t flags, avp_name_t name, avp_value_t val);
int add_avp_list(avp_list_t* list, avp_flags_t flags, avp_name_t name, avp_value_t val);
/* Delete avps with given type and name */
void delete_avp(avp_flags_t flags, avp_name_t name);
int destroy_avps(avp_flags_t flags, avp_name_t name, int all);
/* search functions */
avp_t *search_first_avp( avp_flags_t flags, avp_name_t name,
avp_value_t *val, struct search_state* state);
avp_t *search_avp_by_index( avp_flags_t flags, avp_name_t name,
avp_value_t *val, avp_index_t index);
avp_t *search_avp (avp_ident_t ident, avp_value_t* val, struct search_state* state);
avp_t *search_next_avp(struct search_state* state, avp_value_t *val);
/* Reset one avp list */
int reset_avp_list(int flags);
/* free functions */
void reset_avps(void);
void destroy_avp(avp_t *avp);
void destroy_avp_list(avp_list_t *list );
void destroy_avp_list_unsafe(avp_list_t *list );
/* get func */
void get_avp_val(avp_t *avp, avp_value_t *val );
str* get_avp_name(avp_t *avp);
avp_list_t get_avp_list(avp_flags_t flags);
avp_list_t* set_avp_list(avp_flags_t flags, avp_list_t* list);
/* global alias functions (manipulation and parsing)*/
int add_avp_galias_str(char *alias_definition);
int lookup_avp_galias(str *alias, int *type, int_str *avp_name);
int add_avp_galias(str *alias, int type, int_str avp_name);
int parse_avp_ident( str *name, avp_ident_t* attr);
int parse_avp_name( str *name, int *type, int_str *avp_name, int *index);
int parse_avp_spec( str *name, int *type, int_str *avp_name, int *index);
int km_parse_avp_spec( str *name, int *type, int_str *avp_name);
void free_avp_name( avp_flags_t *type, int_str *avp_name);
/* Free an ident obtained with parse_avp_ident() */
void free_avp_ident(avp_ident_t* attr);
/* AVP flags functions */
#define MAX_AVPFLAG ((unsigned int)( sizeof(avp_flags_t) * CHAR_BIT - 1 - AVP_CUSTOM_FLAGS))
avp_flags_t register_avpflag(char* name);
avp_flags_t get_avpflag_no(char* name);
#endif