wireshark/packet-rtp.h
Guy Harris 9687947b5f From Lars Roland:
- added a pointer to raw rtp data to _rtp_info that can be used by
	  taps;

	- RTP packets are passed to the tap queue only if they are not
	  error packets (so that you don't need to filter out ICMP
	  packets)

	- use that pointer in rtp_stream, so it handles packets with
	  padding, and should handle RTP packets fragmented across
	  lower-level packets

	- moved rtp_stream from tap sources to normal files
	  (prevents on-start-up registration of the rtp_stream tap
	  listener)

	- rtp_stream tap gets registered/unregistered with the "RTP
	  Streams" dialog box
	  i.e. the tap is registered as long as the dialog box is open.
	  Alternatively, it is de-/registered on demand if RTP Analysis is
	  called directly on a packet.

	- rtp_stream tap listener no longer uses a filter in dissection
`	  and does not need to have a proto tree being built.
	  (performance increase)

	- fixed: RTP Streams list will get updated in real time if the
	  dialog box is open while a redissection takes place.

svn path=/trunk/; revision=9051
2003-11-20 23:34:31 +00:00

54 lines
2.1 KiB
C

/* packet-rtp.h
*
* Routines for RTP dissection
* RTP = Real time Transport Protocol
*
* $Id: packet-rtp.h,v 1.10 2003/11/20 23:34:30 guy Exp $
*
* Copyright 2000, Philips Electronics N.V.
* Written by Andreas Sikkema <andreas.sikkema@philips.com>
*
* 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.
*/
struct _rtp_info {
gboolean info_padding_set;
gboolean info_marker_set;
unsigned int info_payload_type;
unsigned int info_padding_count;
guint16 info_seq_num;
guint32 info_timestamp;
guint32 info_sync_src;
guint info_data_len; /* length of raw rtp data as reported */
guint info_payload_offset; /* start of payload relative to info_data */
guint info_payload_len; /* length of payload (incl padding) */
const guint8* info_data; /* pointer to raw rtp data */
/*
* info_data: pointer to raw rtp data = header + payload incl. padding.
* That should be safe because the "epan_dissect_t" constructed for the packet
* has not yet been freed when the taps are called.
* (destroying the "epan_dissect_t" will end up freeing all the tvbuffs
* and hence invalidating pointers to their data).
* See "add_packet_to_packet_list()" for details.
*/
};
void rtp_add_address ( packet_info *pinfo, const unsigned char* ip_addr, int prt );
void proto_register_rtp( void );