bf81b42e1e
(COPYING will be updated in next commit) svn path=/trunk/; revision=43536
49 lines
2.1 KiB
C
49 lines
2.1 KiB
C
/* conv_id.h
|
|
* conv_id 2011 Robert Bullen
|
|
*
|
|
* $Id$
|
|
*
|
|
* Wireshark - Network traffic analyzer
|
|
* By Gerald Combs <gerald@wireshark.org>
|
|
* Copyright 1998 Gerald Combs
|
|
*
|
|
* This program 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.
|
|
*
|
|
* This program 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef __CONV_ID_H__
|
|
#define __CONV_ID_H__
|
|
|
|
/** conv_id_t is a type that can aid in conversation identification. When
|
|
* included in a "conversation key", whatever that may be, in addition to the
|
|
* typical { address, port, address, port } quadruple, it helps differentiate
|
|
* in case the quadruple is not sufficiently unique. For example, it is not
|
|
* uncommon to see a TCP quadruple reused these days, and employing a
|
|
* conv_id_t field ensures that each instance of a reused TCP conversation is
|
|
* tracked independently. Currently this type is used in both Wireshark's and
|
|
* tshark's conversation tables implementations (they are different, hence
|
|
* the need for a whole header file for this one silly type alias).
|
|
*
|
|
* The "protocol" or "statistic" code responsible for instantiating the
|
|
* "conversation key" is also responsible for assigning its conv_id_t, and
|
|
* therefore its interpretation is specific to its assignor. For example, the
|
|
* TCP conversations tables in Wireshark and tshark assign the value of
|
|
* tcp.stream. If a conv_id_t field is not used, it should be assigned the
|
|
* value CONV_ID_UNSET.
|
|
*/
|
|
typedef guint32 conv_id_t;
|
|
#define CONV_ID_UNSET G_MAXUINT32
|
|
|
|
#endif /* __CONV_ID_H__ */
|