156 lines
5.2 KiB
C
156 lines
5.2 KiB
C
/* rtp_stream.h
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* RTP streams summary addition for Wireshark
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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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* 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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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __RTP_STREAM_H__
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#define __RTP_STREAM_H__
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/** @file
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* "RTP Streams" dialog box common routines.
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* @ingroup main_ui_group
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#include "tap-rtp-analysis.h"
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#include <glib.h>
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#include <stdio.h>
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#include "cfile.h"
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#include <epan/address.h>
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#include <epan/tap.h>
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#include "ui/rtp_stream_id.h"
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/** Defines an rtp stream */
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typedef struct _rtpstream_info {
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rtpstream_id_t id;
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guint8 first_payload_type; /**< Numeric payload type */
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const gchar *first_payload_type_name; /**< Payload type name */
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const gchar *payload_type_names[256]; /**< Seen payload type names. Array index is payload type (byte), filled only during TAP_ANALYSE */
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gchar *all_payload_type_names; /**< All seen payload names for a stream in one string */
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gboolean is_srtp;
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guint32 packet_count;
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gboolean end_stream; /**< Used to track streams across payload types */
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int rtp_event;
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int call_num; /**< Used to match call_num in voip_calls_info_t */
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guint32 setup_frame_number; /**< frame number of setup message */
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/* Start and stop packets needed for .num and .abs_ts */
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frame_data *start_fd;
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frame_data *stop_fd;
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nstime_t start_rel_time; /**< relative start time from pinfo */
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nstime_t stop_rel_time; /**< relative stop time from pinfo */
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nstime_t start_abs_time; /**< abs start time from pinfo */
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guint16 vlan_id;
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gboolean tag_vlan_error;
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gboolean tag_diffserv_error;
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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 timestamps */
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const gchar *ed137_info; /** pointer to static text, no freeing is required */
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} rtpstream_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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typedef struct _rtpstream_tapinfo rtpstream_tapinfo_t;
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typedef void (*rtpstream_tap_reset_cb)(rtpstream_tapinfo_t *tapinfo);
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typedef void (*rtpstream_tap_draw_cb)(rtpstream_tapinfo_t *tapinfo);
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typedef void (*tap_mark_packet_cb)(rtpstream_tapinfo_t *tapinfo, frame_data *fd);
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typedef void (*rtpstream_tap_error_cb)(GString *error_string);
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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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struct _rtpstream_tapinfo {
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rtpstream_tap_reset_cb tap_reset; /**< tap reset callback */
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rtpstream_tap_draw_cb tap_draw; /**< tap draw callback */
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tap_mark_packet_cb tap_mark_packet; /**< packet marking callback */
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void *tap_data; /**< data for tap callbacks */
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int nstreams; /**< number of streams in the list */
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GList *strinfo_list; /**< list of rtpstream_info_t* */
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int npackets; /**< total number of rtp packets of all streams */
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/* used while tapping. user shouldn't modify these */
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tap_mode_t mode;
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rtpstream_info_t *filter_stream_fwd; /**< used as filter in some tap modes */
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rtpstream_info_t *filter_stream_rev; /**< used as filter in some tap modes */
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FILE *save_file;
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gboolean is_registered; /**< if the tap listener is currently registered or not */
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gboolean apply_display_filter; /**< if apply display filter during analyse */
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};
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#if 0
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#define RTP_STREAM_DEBUG(...) { \
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char *RTP_STREAM_DEBUG_MSG = g_strdup_printf(__VA_ARGS__); \
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g_warning("rtp_stream: %s:%d %s", G_STRFUNC, __LINE__, RTP_STREAM_DEBUG_MSG); \
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g_free(RTP_STREAM_DEBUG_MSG); \
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}
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#else
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#define RTP_STREAM_DEBUG(...)
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#endif
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/****************************************************************************/
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/* INTERFACE */
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void show_tap_registration_error(GString *error_string);
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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(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, const char *fstring);
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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(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, rtpstream_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(rtpstream_tapinfo_t *tapinfo, capture_file *cap_file, rtpstream_info_t* stream_fwd, rtpstream_info_t* stream_rev);
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#define MAX_SILENCE_FRAMES 14400000
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __RTP_STREAM_H__ */
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/*
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* Editor modelines - https://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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