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158 lines
4.1 KiB
158 lines
4.1 KiB
/*
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* $Id$
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*
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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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* History:
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* ----------
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* 2003-02-28 protocolization of t_uac_dlg completed (jiri)
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*/
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#ifndef _UAC_H
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#define _UAC_H
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#include <stdio.h>
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#include "../../str.h"
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#include "dlg.h"
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#include "t_hooks.h"
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#include "h_table.h"
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#define DEFAULT_CSEQ 10 /* Default CSeq number */
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/* structure for UAC interface
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*
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* You can free the memory allocated
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* for the callback parameter if necessary:
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* - when the function is unable to create the UAC
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* and returns failure
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* - when TMCB_DESTROY callback is called -- you must
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* register it explicitly!
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*/
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typedef struct uac_req {
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str *method;
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str *headers;
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str *body;
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dlg_t *dialog;
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int cb_flags;
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transaction_cb *cb;
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void *cbp;
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} uac_req_t;
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/* macro for setting the values of uac_req_t struct */
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#define set_uac_req(_req, \
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_m, _h, _b, _dlg, _cb_flags, _cb, _cbp) \
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do { \
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(_req)->method = (_m); \
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(_req)->headers = (_h); \
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(_req)->body = (_b); \
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(_req)->dialog = (_dlg); \
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(_req)->cb_flags = (_cb_flags); \
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(_req)->cb = (_cb); \
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(_req)->cbp = (_cbp); \
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} while (0)
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#ifdef WITH_EVENT_LOCAL_REQUEST
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/* where to go for the local request route ("tm:local-request") */
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extern int goto_on_local_req;
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#endif /* WITH_EVEN_LOCAL_REQuEST */
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/*
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* Function prototypes
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*/
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typedef int (*reqwith_t)(uac_req_t *uac_r);
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typedef int (*reqout_t)(uac_req_t *uac_r, str* ruri, str* to, str* from, str *next_hop);
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typedef int (*req_t)(uac_req_t *uac_r, str* ruri, str* to, str* from, str *next_hop);
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typedef int (*t_uac_t)(uac_req_t *uac_r);
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typedef int (*t_uac_with_ids_t)(uac_req_t *uac_r,
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unsigned int *ret_index, unsigned int *ret_label);
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#ifdef WITH_AS_SUPPORT
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typedef int (*ack_local_uac_f)(struct cell *trans, str *hdrs, str *body);
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#endif
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typedef int (*prepare_request_within_f)(uac_req_t *uac_r,
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struct retr_buf **dst_req);
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typedef void (*send_prepared_request_f)(struct retr_buf *request_dst);
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typedef void (*generate_fromtag_f)(str*, str*);
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/*
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* Generate a fromtag based on given Call-ID
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*/
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void generate_fromtag(str* tag, str* callid);
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/*
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* Initialization function
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*/
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int uac_init(void);
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/*
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* Send a request
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*/
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int t_uac(uac_req_t *uac_r);
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/*
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* Send a request
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* ret_index and ret_label will identify the new cell
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*/
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int t_uac_with_ids(uac_req_t *uac_r,
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unsigned int *ret_index, unsigned int *ret_label);
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/*
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* Send a message within a dialog
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*/
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int req_within(uac_req_t *uac_r);
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/*
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* Send an initial request that will start a dialog
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*/
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int req_outside(uac_req_t *uac_r, str* ruri, str* to, str* from, str* next_hop);
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#ifdef WITH_AS_SUPPORT
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struct retr_buf *local_ack_rb(sip_msg_t *rpl_2xx, struct cell *trans,
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unsigned int branch, str *hdrs, str *body);
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void free_local_ack(struct retr_buf *lack);
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void free_local_ack_unsafe(struct retr_buf *lack);
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/**
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* ACK an existing local INVITE transaction...
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*/
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int ack_local_uac(struct cell *trans, str *hdrs, str *body);
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#endif
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/*
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* Send a transactional request, no dialogs involved
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*/
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int request(uac_req_t *uac_r, str* ruri, str* to, str* from, str *next_hop);
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int prepare_req_within(uac_req_t *uac_r,
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struct retr_buf **dst_req);
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void send_prepared_request(struct retr_buf *request);
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#endif
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