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/** @file
*
* RTP streams summary addition for Wireshark
*
* Copyright 2003, Alcatel Business Systems
* By Lars Ruoff <lars.ruoff@gmx.net>
*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 1998 Gerald Combs
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#ifndef __RTP_STREAM_H__
#define __RTP_STREAM_H__
#include <glib.h>
#include "tap-rtp-analysis.h"
#include <stdio.h>
#include "cfile.h"
#include <epan/address.h>
#include <epan/tap.h>
#include "ui/rtp_stream_id.h"
/** @file
* "RTP Streams" dialog box common routines.
* @ingroup main_ui_group
*/
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
/** Defines an rtp stream */
typedef struct _rtpstream_info {
rtpstream_id_t id;
guint8 first_payload_type; /**< Numeric payload type */
const gchar *first_payload_type_name; /**< Payload type name */
const gchar *payload_type_names[256]; /**< Seen payload type names. Array index is payload type (byte), filled only during TAP_ANALYSE */
gchar *all_payload_type_names; /**< All seen payload names for a stream in one string */
gboolean is_srtp;
guint32 packet_count;
gboolean end_stream; /**< Used to track streams across payload types */
int rtp_event;
int call_num; /**< Used to match call_num in voip_calls_info_t */
guint32 setup_frame_number; /**< frame number of setup message */
/* Start and stop packets needed for .num and .abs_ts */
frame_data *start_fd;
frame_data *stop_fd;
nstime_t start_rel_time; /**< relative start time from pinfo */
nstime_t stop_rel_time; /**< relative stop time from pinfo */
nstime_t start_abs_time; /**< abs start time from pinfo */
guint16 vlan_id;
gboolean tag_vlan_error;
gboolean tag_diffserv_error;
tap_rtp_stat_t rtp_stats; /**< here goes the RTP statistics info */
gboolean problem; /**< if the streams had wrong sequence numbers or wrong timestamps */
const gchar *ed137_info; /** pointer to static text, no freeing is required */
} rtpstream_info_t;
/** tapping modes */
typedef enum
{
TAP_ANALYSE,
TAP_SAVE,
TAP_MARK
} tap_mode_t;
typedef struct _rtpstream_tapinfo rtpstream_tapinfo_t;
typedef void (*rtpstream_tap_reset_cb)(rtpstream_tapinfo_t *tapinfo);
typedef void (*rtpstream_tap_draw_cb)(rtpstream_tapinfo_t *tapinfo);
typedef void (*tap_mark_packet_cb)(rtpstream_tapinfo_t *tapinfo, frame_data *fd);
typedef void (*rtpstream_tap_error_cb)(GString *error_string);
/* structure that holds the information about all detected streams */
/** struct holding all information of the tap */
struct _rtpstream_tapinfo {
rtpstream_tap_reset_cb tap_reset; /**< tap reset callback */
rtpstream_tap_draw_cb tap_draw; /**< tap draw callback */
tap_mark_packet_cb tap_mark_packet; /**< packet marking callback */
void *tap_data; /**< data for tap callbacks */
int nstreams; /**< number of streams in the list */
GList *strinfo_list; /**< list of rtpstream_info_t* */
GHashTable *strinfo_hash; /**< multihash of rtpstream_info_t **/
/* multihash means that there can be */
/* more values related to one hash key */
int npackets; /**< total number of rtp packets of all streams */
/* used while tapping. user shouldn't modify these */
tap_mode_t mode;
rtpstream_info_t *filter_stream_fwd; /**< used as filter in some tap modes */
rtpstream_info_t *filter_stream_rev; /**< used as filter in some tap modes */
FILE *save_file;
gboolean is_registered; /**< if the tap listener is currently registered or not */
gboolean apply_display_filter; /**< if apply display filter during analyse */
};
#if 0
#define RTP_STREAM_DEBUG(...) { \
char *RTP_STREAM_DEBUG_MSG = ws_strdup_printf(__VA_ARGS__); \
ws_warning("rtp_stream: %s:%d %s", G_STRFUNC, __LINE__, RTP_STREAM_DEBUG_MSG); \
g_free(RTP_STREAM_DEBUG_MSG); \
}
#else
#define RTP_STREAM_DEBUG(...)
#endif
/****************************************************************************/
/* INTERFACE */
void show_tap_registration_error(GString *error_string);
/**
* Scans all packets for RTP streams and updates the RTP streams list.
* (redissects all packets)
*/
void rtpstream_scan(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, const char *fstring);
/**
* Saves an RTP stream as raw data stream with timestamp information for later RTP playback.
* (redissects all packets)
*/
gboolean rtpstream_save(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, rtpstream_info_t* stream, const gchar *filename);
/**
* Marks all packets belonging to either of stream_fwd or stream_rev.
* (both can be NULL)
* (redissects all packets)
*/
void rtpstream_mark(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, rtpstream_info_t* stream_fwd, rtpstream_info_t* stream_rev);
/* Constant based on fix for bug 4119/5902: don't insert too many silence
* frames.
*/
#define MAX_SILENCE_FRAMES 14400000
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* __RTP_STREAM_H__ */
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