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130 lines
2.8 KiB
130 lines
2.8 KiB
/*
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* Copyright (c) 2004 Juha Heinanen
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*
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* This file is part of Kamailio, a free SIP server.
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*
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* Kamailio 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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* Kamailio 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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/*! \file
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* \brief Parser :: Allow header
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*
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* \ingroup parser
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "../dprint.h"
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#include "../mem/mem.h"
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#include "parse_allow.h"
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#include "parse_methods.h"
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#include "msg_parser.h"
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/*! \brief
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* This method is used to parse Allow header.
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*
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* \param _hf message header field
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* \return 0 on success, -1 on failure.
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*/
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int parse_allow_header(struct hdr_field* _hf)
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{
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struct allow_body* ab = 0;
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if (!_hf) {
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LOG(L_ERR, "parse_allow_header: Invalid parameter value\n");
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return -1;
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}
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/* maybe the header is already parsed! */
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if (_hf->parsed) {
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return 0;
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}
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ab = (struct allow_body*)pkg_malloc(sizeof(struct allow_body));
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if (ab == 0) {
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LOG(L_ERR, "ERROR:parse_allow_header: out of pkg_memory\n");
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return -1;
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}
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memset(ab,'\0', sizeof(struct allow_body));
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if (parse_methods(&(_hf->body), &(ab->allow)) !=0 ) {
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LOG(L_ERR, "ERROR:parse_allow_header: bad allow body header\n");
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goto error;
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}
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ab->allow_all = 0;
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_hf->parsed = (void*)ab;
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return 0;
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error:
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if (ab) pkg_free(ab);
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return -1;
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}
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/*!
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* \brief This method is used to parse all Allow HF body.
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* \param msg sip msg
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* \return 0 on success,-1 on failure.
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*/
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int parse_allow(struct sip_msg *msg)
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{
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unsigned int allow;
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struct hdr_field *hdr;
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/* maybe the header is already parsed! */
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if (msg->allow && msg->allow->parsed) {
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return 0;
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}
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/* parse to the end in order to get all ALLOW headers */
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if (parse_headers(msg,HDR_EOH_F,0)==-1 || !msg->allow) {
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return -1;
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}
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allow = 0;
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for(hdr = msg->allow ; hdr ; hdr = next_sibling_hdr(hdr)) {
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if (hdr->parsed == 0) {
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if(parse_allow_header(hdr) < 0) {
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return -1;
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}
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}
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allow |= ((struct allow_body*)hdr->parsed)->allow;
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}
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((struct allow_body*)msg->allow->parsed)->allow_all = allow;
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return 0;
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}
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/*
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* Release memory
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*/
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void free_allow_body(struct allow_body **ab)
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{
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if (ab && *ab) {
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pkg_free(*ab);
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*ab = 0;
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}
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}
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void free_allow_header(struct hdr_field* hf)
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{
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free_allow_body((struct allow_body**)(void*)(&(hf->parsed)));
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}
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