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158 lines
4.6 KiB
158 lines
4.6 KiB
/*
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* $Id$
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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 ser, a free SIP server.
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*
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* ser 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
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version
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*
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* For a license to use the ser software under conditions
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* other than those described here, or to purchase support for this
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* software, please contact iptel.org by e-mail at the following addresses:
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* info@iptel.org
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*
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* ser is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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/*
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* History:
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* --------
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* 2003-02-24 s/T_NULL/T_NULL_CELL/ to avoid redefinition conflict w/
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* nameser_compat.h (andrei)
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* 2004-02-11 FIFO/CANCEL + alignments (hash=f(callid,cseq)) (uli+jiri)
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* 2005-12-09 added t_set_fr() (andrei)
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* 2009-06-24 changed set_t() to take also a branch parameter (andrei)
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*/
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#ifndef _T_LOOKUP_H
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#define _T_LOOKUP_H
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#include "defs.h"
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#include "config.h"
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#include "t_funcs.h"
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#define T_UNDEFINED ( (struct cell*) -1 )
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#define T_NULL_CELL ( (struct cell*) 0 )
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#define T_BR_UNDEFINED (-1)
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extern unsigned int global_msg_id;
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void init_t(void);
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int init_rb( struct retr_buf *rb, struct sip_msg *msg );
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typedef struct cell* (*tlookup_original_f)( struct sip_msg* p_msg );
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struct cell* t_lookupOriginalT( struct sip_msg* p_msg );
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int t_reply_matching( struct sip_msg* , int* );
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typedef int (*tlookup_request_f)(struct sip_msg*, int, int*);
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int t_lookup_request( struct sip_msg* p_msg, int leave_new_locked,
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int* canceled);
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int t_newtran( struct sip_msg* p_msg );
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int _add_branch_label( struct cell *trans,
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char *str, int *len, int branch );
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int add_branch_label( struct cell *trans,
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struct sip_msg *p_msg, int branch );
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/* releases T-context */
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int t_unref( struct sip_msg *p_msg);
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typedef int (*tunref_f)( struct sip_msg *p_msg);
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typedef int (*tcheck_f)(struct sip_msg*, int*);
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/* old t_check version (no e2eack support) */
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int t_check(struct sip_msg* , int *branch );
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/* new version, e2eack and different return convention */
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int t_check_msg(struct sip_msg* , int *branch );
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typedef struct cell * (*tgett_f)(void);
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struct cell *get_t(void);
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int get_t_branch(void);
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/* use carefully or better not at all -- current transaction is
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* primarily set by lookup functions */
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void set_t(struct cell *t, int branch);
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#define T_GET_TI "t_get_trans_ident"
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#define T_LOOKUP_IDENT "t_lookup_ident"
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#define T_IS_LOCAL "t_is_local"
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typedef int (*tislocal_f)(struct sip_msg*);
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typedef int (*tnewtran_f)(struct sip_msg*);
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typedef int (*tget_ti_f)(struct sip_msg*, unsigned int*, unsigned int*);
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typedef int (*tlookup_ident_f)(struct cell**, unsigned int, unsigned int);
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typedef int (*trelease_f)(struct sip_msg*);
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typedef int (*tlookup_callid_f)(struct cell **, str, str);
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int t_is_local(struct sip_msg*);
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int t_get_trans_ident(struct sip_msg* p_msg, unsigned int* hash_index, unsigned int* label);
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int t_lookup_ident(struct cell** trans, unsigned int hash_index, unsigned int label);
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/* lookup a transaction by callid and cseq */
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int t_lookup_callid(struct cell** trans, str callid, str cseq);
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int t_set_fr(struct sip_msg* msg, unsigned int fr_inv_to, unsigned int fr_to );
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int t_reset_fr(void);
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#ifdef TM_DIFF_RT_TIMEOUT
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int t_set_retr(struct sip_msg* msg, unsigned int t1_to, unsigned int t2_to);
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int t_reset_retr(void);
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#endif
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int t_set_max_lifetime(struct sip_msg* msg, unsigned int eol_inv,
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unsigned int eol_noninv);
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int t_reset_max_lifetime(void);
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#ifdef WITH_AS_SUPPORT
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/**
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* Returns the hash coordinates of the transaction current CANCEL is targeting.
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*/
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int t_get_canceled_ident(struct sip_msg *msg, unsigned int *hash_index,
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unsigned int *label);
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typedef int (*t_get_canceled_ident_f)(struct sip_msg *msg,
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unsigned int *hash_index, unsigned int *label);
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#endif /* WITH_AS_SUPPORT */
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/**
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* required by TMX (K/O extensions)
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*/
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#define WITH_TM_CTX
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#ifdef WITH_TM_CTX
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typedef struct _tm_ctx {
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int branch_index;
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} tm_ctx_t;
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typedef tm_ctx_t* (*tm_ctx_get_f)(void);
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tm_ctx_t* tm_ctx_get(void);
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void tm_ctx_init(void);
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void tm_ctx_set_branch_index(int v);
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#else
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#define tm_ctx_get() NULL
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#define tm_ctx_init()
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#define tm_ctx_set_branch_index(v)
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#endif /* WITH_TM_CTX */
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#endif
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