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/*
* $Id: parse_allow.c,v 1.7 2006/03/02 15:56:12 bogdan_iancu Exp $
*
* Copyright (c) 2004 Juha Heinanen
*
* This file is part of openser, a free SIP server.
*
* openser 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
*
* openser 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:
* -------
* 2006-03-02 parse_allow() parses and cumulates all ALLOW headers (bogdan)
*/
#include <stdlib.h>
#include <string.h>
#include "../dprint.h"
#include "../mem/mem.h"
#include "parse_allow.h"
#include "parse_methods.h"
#include "msg_parser.h"
/*
* This method is used to parse all Allow HF body.
*
* params: msg : sip msg
* returns 0 on success,
* -1 on failure.
*/
int parse_allow(struct sip_msg *msg)
{
unsigned int allow;
struct hdr_field *hdr;
struct allow_body *ab;
/* maybe the header is already parsed! */
if (msg->allow && msg->allow->parsed)
return 0;
/* parse to the end in order to get all ALLOW headers */
if (parse_headers(msg,HDR_EOH_F,0)==-1 || !msg->allow)
return -1;
/* bad luck! :-( - we have to parse them */
allow = 0;
for( hdr=msg->allow ; hdr ; hdr=hdr->sibling) {
if (hdr->parsed) {
allow |= ((struct allow_body*)hdr->parsed)->allow;
continue;
}
ab = (struct allow_body*)pkg_malloc(sizeof(struct allow_body));
if (ab == 0) {
LOG(L_ERR, "ERROR:parse_allow: Out of pkg_memory\n");
return -1;
}
if (parse_methods(&(hdr->body), &(ab->allow))!=0) {
LOG(L_ERR, "ERROR:parse_allow: Bad allow body header\n");
return -1;
}
ab->allow_all = 0;
hdr->parsed = (void*)ab;
allow |= ab->allow;
}
((struct allow_body*)msg->allow->parsed)->allow_all = allow;
return 0;
}
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