mirror of https://github.com/sipwise/kamailio.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
113 lines
3.4 KiB
113 lines
3.4 KiB
/*
|
|
* $Id$
|
|
*
|
|
* Copyright (C) 2010 iptelorg GmbH
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
|
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
|
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
|
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
/*
|
|
* char_msg_val.h
|
|
*/
|
|
/*
|
|
* History:
|
|
* --------
|
|
* 2010-02-10 moved from parser/msg_parser.h and added tag only mode
|
|
* by default (andrei)
|
|
*/
|
|
/** compute the characteristic value of a message.
|
|
* @file
|
|
* @ingroup core
|
|
*/
|
|
/* Defines:
|
|
* BRANCH_INCLUDE_FROMTO_BODY - if defined the old (pre 3.1) mode of
|
|
* including the full from & to bodies will be used (instead of only the
|
|
* tags).
|
|
* BRANCH_IGNORE_3261_VIA - if defined, no check and special/simpler handling
|
|
* of messages with 3261 cookies in the via branch will be made (same
|
|
* behaviour as in pre 3.1 versions).
|
|
*/
|
|
|
|
#ifndef __char_msg_val_h
|
|
#define __char_msg_val_h
|
|
|
|
#include "comp_defs.h"
|
|
#include "compiler_opt.h"
|
|
#include "str.h"
|
|
#include "parser/msg_parser.h"
|
|
#include "parser/parse_to.h"
|
|
#include "parser/parse_from.h"
|
|
#include "md5utils.h"
|
|
|
|
/*! \brief calculate characteristic value of a message -- this value
|
|
is used to identify a transaction during the process of
|
|
reply matching
|
|
*/
|
|
inline static int char_msg_val( struct sip_msg *msg, char *cv )
|
|
{
|
|
str src[8];
|
|
|
|
if (unlikely(!check_transaction_quadruple(msg))) {
|
|
LOG(L_ERR, "ERROR: can't calculate char_value due "
|
|
"to a parsing error\n");
|
|
memset( cv, '0', MD5_LEN );
|
|
return 0;
|
|
}
|
|
#ifndef BRANCH_IGNORE_3261_VIA
|
|
if (likely(msg->via1->branch && msg->via1->branch->value.len>MCOOKIE_LEN &&
|
|
memcmp(msg->via1->branch->value.s, MCOOKIE, MCOOKIE_LEN)==0)){
|
|
/* 3261 branch cookie present => hash only the received branch ID */
|
|
src[0]=msg->via1->branch->value;
|
|
MD5StringArray ( cv, src, 1 );
|
|
return 1; /* success */
|
|
}
|
|
#endif /* BRANCH_IGNORE_3261_VIA */
|
|
#ifdef BRANCH_INCLUDE_FROMTO_BODY
|
|
/* use the from & to full bodies */
|
|
src[0]= msg->from->body;
|
|
src[1]= msg->to->body;
|
|
#else
|
|
/* to body is automatically parsed (via check_transactionquadruple /
|
|
parse_header), but the from body has to be parsed manually */
|
|
if (msg->from->parsed==0){
|
|
/* parse from body */
|
|
if (unlikely(parse_from_header(msg) == -1)){
|
|
LOG(L_ERR, "error while parsing From header\n");
|
|
return 0;
|
|
}
|
|
}
|
|
/* use only the from & to tags */
|
|
src[0]=get_from(msg)->tag_value;
|
|
src[1]=get_to(msg)->tag_value;
|
|
#endif /* BRANCH_INCLUDE_FROMTO_BODY */
|
|
src[2]= msg->callid->body;
|
|
src[3]= msg->first_line.u.request.uri;
|
|
src[4]= get_cseq( msg )->number;
|
|
|
|
/* topmost Via is part of transaction key as well ! */
|
|
src[5]= msg->via1->host;
|
|
src[6]= msg->via1->port_str;
|
|
if (likely(msg->via1->branch)) {
|
|
src[7]= msg->via1->branch->value;
|
|
MD5StringArray ( cv, src, 8 );
|
|
} else {
|
|
MD5StringArray( cv, src, 7 );
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
|
|
|
|
#endif /*__char_msg_val_h*/
|
|
|
|
/* vi: set ts=4 sw=4 tw=79:ai:cindent: */
|