forked from osmocom/wireshark
153 lines
5.2 KiB
C
153 lines
5.2 KiB
C
/* mcast_stream.h
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*
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* Copyright 2006, Iskratel , Slovenia
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* By Jakob Bratkovic <j.bratkovic@iskratel.si> and
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* Miha Jemec <m.jemec@iskratel.si>
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*
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* based on rtp_stream.h
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* Copyright 2003, Alcatel Business Systems
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* By Lars Ruoff <lars.ruoff@gmx.net>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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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#ifndef __MCAST_STREAM_H__
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#define __MCAST_STREAM_H__
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include <epan/tap.h>
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#define MAX_SPEED 200000
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/* typedefs for sliding window and buffer size */
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typedef struct buffer{
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struct timeval *buff; /* packet times */
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gint32 first; /* pointer to the first element */
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gint32 last; /* pointer to the last element */
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gint32 burstsize; /* current burst */
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gint32 topburstsize; /* maximum burst in the refresh interval*/
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gint32 count; /* packet counter */
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gint32 burststatus; /* burst status */
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gint32 numbursts; /* number of bursts */
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gint32 buffusage; /* buffer usage */
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gint32 buffstatus; /* buffer status */
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gint32 numbuffalarms; /* number of alarms triggered by buffer underruns */
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gint32 topbuffusage; /* top buffer usage in refresh interval */
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float maxbw; /* maximum bandwidth usage */
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} t_buffer;
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/* defines an mcast stream */
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typedef struct _mcast_stream_info {
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address src_addr;
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guint16 src_port;
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address dest_addr;
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guint16 dest_port;
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guint32 npackets;
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guint32 apackets;
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guint32 total_bytes;
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float average_bw;
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guint32 first_frame_num; /* frame number of first frame */
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/* start of recording (GMT) of this stream */
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guint32 start_sec; /* seconds */
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guint32 start_usec; /* microseconds */
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guint32 start_rel_sec; /* start stream rel seconds */
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guint32 start_rel_usec; /* start stream rel microseconds */
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guint32 stop_rel_sec; /* stop stream rel seconds */
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guint32 stop_rel_usec; /* stop stream rel microseconds */
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guint16 vlan_id;
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/*for the sliding window */
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t_buffer element;
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} mcast_stream_info_t;
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/* structure that holds the information about all detected streams */
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/* struct holding all information of the tap */
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typedef struct _mcaststream_tapinfo {
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tap_draw_cb tap_draw; /**< tap draw callback */
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int nstreams; /* number of streams in the list */
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GList* strinfo_list; /* list with all streams */
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guint32 npackets; /* total number of mcast packets of all streams */
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mcast_stream_info_t* allstreams; /* structure holding information common for all streams */
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guint32 launch_count; /* number of times the tap has been run */
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gboolean is_registered; /* if the tap listener is currently registered or not */
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} mcaststream_tapinfo_t;
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extern gint32 mcast_stream_trigger;
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extern gint32 mcast_stream_bufferalarm;
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extern guint16 mcast_stream_burstint;
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extern gint32 mcast_stream_emptyspeed;
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extern gint32 mcast_stream_cumulemptyspeed;
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/****************************************************************************/
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/* INTERFACE */
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/*
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* Registers the mcast_streams tap listener (if not already done).
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* From that point on, the Mcast streams list will be updated with every redissection.
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* This function is also the entry point for the initialization routine of the tap system.
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* So whenever mcast_stream.c is added to the list of WIRESHARK_TAP_SRCs, the tap will be registered on startup.
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* If not, it will be registered on demand by the mcast_streams and mcast_analysis functions that need it.
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*/
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void register_tap_listener_mcast_stream(mcaststream_tapinfo_t *tapinfo);
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/*
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* Removes the mcast_streams tap listener (if not already done)
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* From that point on, the Mcast streams list won't be updated any more.
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*/
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void remove_tap_listener_mcast_stream(mcaststream_tapinfo_t *tapinfo);
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/*
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* Cleans up memory of mcast streams tap.
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*/
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void mcaststream_reset(mcaststream_tapinfo_t *tapinfo);
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/*
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* Scans all packets for Mcast streams and updates the Mcast streams list.
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* (redissects all packets)
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*/
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void mcaststream_scan(mcaststream_tapinfo_t *tapinfo, capture_file *cap_file);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __MCAST_STREAM_H__ */
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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