forked from osmocom/wireshark
99 lines
2.5 KiB
C
99 lines
2.5 KiB
C
/** @file
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*
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* IAX2 analysis addition for Wireshark
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*
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* based on rtp_analysis.c
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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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* based on tap_rtp.c
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* Copyright 2003, Iskratel, Ltd, Kranj
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* By Miha Jemec <m.jemec@iskratel.si>
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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 __TAP_IAX2_ANALYSIS_H__
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#define __TAP_IAX2_ANALYSIS_H__
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#include <epan/address.h>
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#include <epan/packet_info.h>
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/** @file
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* ???
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* @todo what's this?
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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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/****************************************************************************/
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/* structure that holds the information about the forward and reversed direction */
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typedef struct _iax2_bw_history_item {
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double time;
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guint32 bytes;
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} iax2_bw_history_item;
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#define BUFF_BW 300
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typedef struct _tap_iax2_stat_t {
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gboolean first_packet; /* do not use in code that is called after iax2_packet_analyse */
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/* use (flags & STAT_FLAG_FIRST) instead */
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/* all of the following fields will be initialized after
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iax2_packet_analyse has been called */
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guint32 flags; /* see STAT_FLAG-defines below */
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guint16 seq_num;
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guint32 timestamp;
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guint32 delta_timestamp;
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double bandwidth;
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iax2_bw_history_item bw_history[BUFF_BW];
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guint16 bw_start_index;
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guint16 bw_index;
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guint32 total_bytes;
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double delta;
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double jitter;
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double diff;
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double time;
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double start_time;
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double max_delta;
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double max_jitter;
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double mean_jitter;
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guint32 max_nr;
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guint16 start_seq_nr;
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guint16 stop_seq_nr;
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guint32 total_nr;
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guint32 sequence;
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gboolean under; /* Unused? */
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gint cycles; /* Unused? */
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guint16 pt;
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int reg_pt;
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} tap_iax2_stat_t;
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#define PT_UNDEFINED -1
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/* status flags for the flags parameter in tap_iax2_stat_t */
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#define STAT_FLAG_FIRST 0x001
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#define STAT_FLAG_MARKER 0x002
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#define STAT_FLAG_WRONG_SEQ 0x004
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#define STAT_FLAG_PT_CHANGE 0x008
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#define STAT_FLAG_PT_CN 0x010
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#define STAT_FLAG_FOLLOW_PT_CN 0x020
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#define STAT_FLAG_REG_PT_CHANGE 0x040
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#define STAT_FLAG_WRONG_TIMESTAMP 0x080
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/* function for analysing an IAX2 packet. Called from iax2_analysis. */
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extern void iax2_packet_analyse(tap_iax2_stat_t *statinfo,
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packet_info *pinfo,
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const struct _iax2_info_t *iax2info);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __TAP_IAX2_ANALYSIS_H__ */
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