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/* mcast_stream.h
*
* Copyright 2006, Iskratel , Slovenia
* By Jakob Bratkovic <j.bratkovic@iskratel.si> and
* Miha Jemec <m.jemec@iskratel.si>
*
* based on rtp_stream.h
* Copyright 2003, Alcatel Business Systems
* By Lars Ruoff <lars.ruoff@gmx.net>
*
* Ethereal - Network traffic analyzer
* By Gerald Combs <gerald@ethereal.com>
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef Mcast_STREAM_H_INCLUDED
#define Mcast_STREAM_H_INCLUDED
#include <glib.h>
#include <stdio.h>
#include <epan/address.h>
/** @file
* ???
* @ingroup dialog_group
* @todo what's this?
*/
#define INTERFACE 2
#define FILTER 3
#define TRIGGER 4
#define TIMER 5
#define REFRESHTIMER 6
#define EMPTYSPEED 7
#define BUFFERALARM 8
#define CUMULEMPTYSPEED 9
#define MAX_SPEED 200000
/* typedefs for sliding window and buffer size */
typedef struct buffer{
struct timeval *buff; /* packet times */
gint32 first; /* pointer to the first element */
gint32 last; /* pointer to the last element */
gint32 burstsize; /* current burst */
gint32 topburstsize; /* maximum burst in the refresh interval*/
gint32 count; /* packet counter */
gint32 burststatus; /* burst status */
gint32 numbursts; /* number of bursts */
gint32 buffusage; /* buffer usage */
gint32 buffstatus; /* buffer status */
gint32 numbuffalarms; /* number of alarms triggered by buffer underruns */
gint32 topbuffusage; /* top buffer usage in refresh interval */
float maxbw; /* maximum bandwidth usage */
} t_buffer;
/* defines an mcast stream */
typedef struct _mcast_stream_info {
address src_addr;
guint16 src_port;
address dest_addr;
guint16 dest_port;
guint32 npackets;
guint32 apackets;
guint32 total_bytes;
float average_bw;
guint32 first_frame_num; /* frame number of first frame */
/* start of recording (GMT) of this stream */
guint32 start_sec; /* seconds */
guint32 start_usec; /* microseconds */
guint32 start_rel_sec; /* start stream rel seconds */
guint32 start_rel_usec; /* start stream rel microseconds */
guint32 stop_rel_sec; /* stop stream rel seconds */
guint32 stop_rel_usec; /* stop stream rel microseconds */
guint16 vlan_id;
/*for the sliding window */
t_buffer element;
} mcast_stream_info_t;
/* structure that holds the information about all detected streams */
/* struct holding all information of the tap */
typedef struct _mcaststream_tapinfo {
int nstreams; /* number of streams in the list */
GList* strinfo_list; /* list with all streams */
guint32 npackets; /* total number of mcast packets of all streams */
mcast_stream_info_t* allstreams; /* structure holding information common for all streams */
guint32 launch_count; /* number of times the tap has been run */
gboolean is_registered; /* if the tap listener is currently registered or not */
} mcaststream_tapinfo_t;
/****************************************************************************/
/* INTERFACE */
/*
* Registers the mcast_streams tap listener (if not already done).
* From that point on, the Mcast streams list will be updated with every redissection.
* This function is also the entry point for the initialization routine of the tap system.
* So whenever mcast_stream.c is added to the list of ETHEREAL_TAP_SRCs, the tap will be registered on startup.
* If not, it will be registered on demand by the mcast_streams and mcast_analysis functions that need it.
*/
void register_tap_listener_mcast_stream(void);
/*
* Removes the mcast_streams tap listener (if not already done)
* From that point on, the Mcast streams list won't be updated any more.
*/
void remove_tap_listener_mcast_stream(void);
/*
* Retrieves a constant reference to the unique info structure of the mcast_streams tap listener.
* The user should not modify the data pointed to.
*/
const mcaststream_tapinfo_t* mcaststream_get_info(void);
/*
* Cleans up memory of mcast streams tap.
*/
void mcaststream_reset(mcaststream_tapinfo_t *tapinfo);
/*
* Scans all packets for Mcast streams and updates the Mcast streams list.
* (redissects all packets)
*/
void mcaststream_scan(void);
#endif /*Mcast_STREAM_H_INCLUDED*/
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