parse_sst.h

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/*
 * $Id$
 *
 * Copyright (c) 2006 SOMA Networks, Inc. <http://www.somanetworks.com/>
 *
 * 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:
 * --------
 * 2006-02-17 Initial revision (dhsueh@somanetworks.com)
 */

#ifndef PARSE_SST_H
#define PARSE_SST_H 1


#include "../../parser/msg_parser.h"
#include "../../parser/hf.h"


enum sst_refresher {
        sst_refresher_unspecified,
        sst_refresher_uac,
        sst_refresher_uas,
};


struct session_expires {
        hf_parsed_free_f hfree;       /* function to free the content */
        unsigned            interval; /* in seconds */
        enum sst_refresher  refresher;
};


enum parse_sst_result {
        parse_sst_success,
        parse_sst_header_not_found,     /* no header */
        parse_sst_no_value,                     /* no interval specified */
#if NOT_IMPLEMENTED_YET
        parse_sst_duplicate,            /* multiple s-e / x / min-se headers found */
#endif
        parse_sst_out_of_mem,
        parse_sst_parse_error,          /* something puked */
};


struct session_expires *
malloc_session_expires( void );


void
free_session_expires( struct session_expires * );


enum parse_sst_result
parse_session_expires( struct sip_msg *msg, struct session_expires *se );


enum parse_sst_result
parse_min_se( struct sip_msg *msg, unsigned *min_se );


#endif /* ! PARSE_SST_H */