epan/dissectors/packet-rtcp.h

   1 /* packet-rtcp.h
   2  *
   3  * Routines for RTCP dissection
   4  * RTCP = Real-time Transport Control Protocol
   5  *
   6  * Copyright 2000, Philips Electronics N.V.
   7  * Written by Andreas Sikkema <andreas.sikkema@philips.com>
   8  *
   9  * Wireshark - Network traffic analyzer
  10  * By Gerald Combs <gerald@wireshark.org>
  11  * Copyright 1998 Gerald Combs
  12  *
  13  * SPDX-License-Identifier: GPL-2.0-or-later
  14  */
  15
  16 #include "ws_symbol_export.h"
  17
  18 /* Info to save in RTCP conversation / packet-info.
  19    Note that this structure applies to the destination end of
  20    an RTP session */
  21 #define MAX_RTCP_SETUP_METHOD_SIZE 10
  22 struct _rtcp_conversation_info
  23 {
  24     /* Setup info is relevant to traffic whose dest is the conversation address */
  25     unsigned char  setup_method_set;
  26     char    setup_method[MAX_RTCP_SETUP_METHOD_SIZE + 1];
  27     uint32_t setup_frame_number;
  28
  29     /* Info used for roundtrip calculations */
  30     unsigned char   last_received_set;
  31     uint32_t last_received_frame_number;
  32     nstime_t last_received_timestamp;
  33     uint32_t last_received_ts;
  34
  35     /* Stored result of calculation */
  36     unsigned char  lsr_matched;
  37     uint32_t calculated_delay_used_frame;
  38     int     calculated_delay_report_gap;
  39     int32_t calculated_delay;
  40
  41     /* SRTCP context */
  42     struct srtp_info *srtcp_info;
  43 };
  44
  45
  46 /* Add an RTCP conversation with the given details */
  47 WS_DLL_PUBLIC
  48 void rtcp_add_address(packet_info *pinfo,
  49                       address *addr, int port,
  50                       int other_port,
  51                       const char *setup_method, uint32_t setup_frame_number);
  52
  53 /* Add an SRTP conversation with the given details */
  54 WS_DLL_PUBLIC
  55 void srtcp_add_address(packet_info *pinfo,
  56                       address *addr, int port,
  57                       int other_port,
  58                       const char *setup_method, uint32_t setup_frame_number,
  59                       struct srtp_info *srtcp_info);