forked from osmocom/wireshark
93b30edbb5
I forgot to check in changes to these files yesterday svn path=/trunk/; revision=13575
160 lines
5.1 KiB
C
160 lines
5.1 KiB
C
/* rtp_stream.h
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* RTP streams summary addition for ethereal
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*
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* $Id$
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*
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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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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifndef RTP_STREAM_H_INCLUDED
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#define RTP_STREAM_H_INCLUDED
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#include "rtp_analysis.h"
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#include <glib.h>
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#include <stdio.h>
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#include <epan/address.h>
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/** @file
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* ???
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* @ingroup dialog_group
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* @todo what's this?
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*/
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/****************************************************************************/
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/* type for storing rtp frame information */
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typedef struct st_rtp_sample_header {
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guint32 rec_time; /* miliseconds since start of recording */
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guint16 frame_length; /* number of bytes in *frame */
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} rtp_sample_header_t;
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/* type for storing rtp frame information */
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typedef struct st_rtp_sample {
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rtp_sample_header_t header; /* date and size */
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const guint8 *frame; /* data bytes */
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} rtp_sample_t;
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typedef rtp_sample_t* rtp_sample_p;
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/* defines an rtp stream */
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typedef struct _rtp_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 ssrc;
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guint8 pt;
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guint32 npackets;
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guint32 first_frame_num; /* frame number of first frame */
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guint32 setup_frame_number; /* frame number of setup message */
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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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gboolean tag_vlan_error;
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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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gboolean tag_diffserv_error;
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guint16 vlan_id;
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tap_rtp_stat_t rtp_stats; /* here goes the RTP statistics info */
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gboolean problem; /* if the streams had wrong sequence numbers or wrong timerstamps */
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} rtp_stream_info_t;
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/* tapping modes */
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typedef enum
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{
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TAP_ANALYSE,
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TAP_SAVE,
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TAP_MARK
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} tap_mode_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 _rtpstream_tapinfo {
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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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int npackets; /* total number of rtp packets of all streams */
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/* used while tapping. user shouldnt modify these */
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tap_mode_t mode;
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rtp_stream_info_t* filter_stream_fwd; /* used as filter in some tap modes */
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rtp_stream_info_t* filter_stream_rev; /* used as filter in some tap modes */
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FILE* save_file;
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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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} rtpstream_tapinfo_t;
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/****************************************************************************/
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/* INTERFACE */
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/*
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* Registers the rtp_streams tap listener (if not already done).
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* From that point on, the RTP 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 rtp_stream.c is added to the list of ETHEREAL_TAP_SRCs, the tap will be registered on startup.
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* If not, it will be registered on demand by the rtp_streams and rtp_analysis functions that need it.
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*/
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void register_tap_listener_rtp_stream(void);
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/*
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* Removes the rtp_streams tap listener (if not already done)
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* From that point on, the RTP streams list won't be updated any more.
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*/
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void remove_tap_listener_rtp_stream(void);
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/*
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* Retrieves a constant reference to the unique info structure of the rtp_streams tap listener.
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* The user should not modify the data pointed to.
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*/
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const rtpstream_tapinfo_t* rtpstream_get_info(void);
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/*
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* Cleans up memory of rtp streams tap.
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*/
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void rtpstream_reset(rtpstream_tapinfo_t *tapinfo);
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/*
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* Scans all packets for RTP streams and updates the RTP streams list.
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* (redissects all packets)
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*/
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void rtpstream_scan(void);
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/*
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* Saves an RTP stream as raw data stream with timestamp information for later RTP playback.
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* (redissects all packets)
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*/
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gboolean rtpstream_save(rtp_stream_info_t* stream, const gchar *filename);
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/*
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* Marks all packets belonging to either of stream_fwd or stream_rev.
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* (both can be NULL)
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* (redissects all packets)
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*/
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void rtpstream_mark(rtp_stream_info_t* stream_fwd, rtp_stream_info_t* stream_rev);
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#endif /*RTP_STREAM_H_INCLUDED*/
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