epan/dissectors/packet-t38.h

   1 /* Do not modify this file. Changes will be overwritten.                      */
   2 /* Generated automatically by the ASN.1 to Wireshark dissector compiler       */
   3 /* packet-t38.h                                                               */
   4 /* asn2wrs.py -q -L -p t38 -c ./t38.cnf -s ./packet-t38-template -D . -O ../.. T38_2002.asn */
   5
   6 /* packet-t38.h
   7  *
   8  * Routines for T38 dissection
   9  * 2003 Hans Viens
  10  * 2004 Alejandro Vaquero, add support to conversation
  11  *
  12  * Wireshark - Network traffic analyzer
  13  * By Gerald Combs <gerald@wireshark.org>
  14  * Copyright 1998 Gerald Combs
  15  *
  16  * SPDX-License-Identifier: GPL-2.0-or-later
  17  */
  18
  19 #include "ws_symbol_export.h"
  20
  21 #define MAX_T38_DATA_ITEMS 4
  22 #define MAX_T38_DESC 128
  23
  24 typedef struct _t38_packet_info {
  25         uint16_t seq_num;       /* UDPTLPacket sequence number */
  26         int32_t type_msg;       /* 0=t30-indicator    1=data */
  27         uint32_t t30ind_value;
  28         uint32_t data_value;    /* standard and speed */
  29         uint32_t setup_frame_number;
  30         uint32_t Data_Field_field_type_value;
  31         uint8_t t30_Facsimile_Control;
  32         char    desc[MAX_T38_DESC]; /* Description used to be displayed in the frame label Graph Analysis */
  33         char    desc_comment[MAX_T38_DESC]; /* Description used to be displayed in the Comment Graph Analysis */
  34         double time_first_t4_data;
  35         uint32_t frame_num_first_t4_data;
  36 } t38_packet_info;
  37
  38
  39 #define MAX_T38_SETUP_METHOD_SIZE 7
  40
  41
  42 /* Info to save the State to reassemble Data (e.g. HDLC) and the Setup (e.g. SDP) in T38 conversations */
  43 typedef struct _t38_conv_info t38_conv_info;
  44
  45 struct _t38_conv_info {
  46
  47         uint32_t reass_ID;
  48         int reass_start_seqnum;
  49         uint32_t reass_start_data_field;
  50         uint32_t reass_data_type;
  51         int32_t last_seqnum; /* used to avoid duplicated seq num shown in the Graph Analysis */
  52         uint32_t packet_lost;
  53         uint32_t burst_lost;
  54         double time_first_t4_data;
  55         uint32_t additional_hdlc_data_field_counter;
  56         int32_t seqnum_prev_data_field;
  57         t38_conv_info *next;
  58
  59 };
  60
  61 /* Info to save the State to reassemble Data (e.g. HDLC) and the Setup (e.g. SDP) in T38 conversations */
  62 typedef struct _t38_conv
  63 {
  64         char    setup_method[MAX_T38_SETUP_METHOD_SIZE + 1];
  65         uint32_t setup_frame_number;
  66         t38_conv_info src_t38_info;
  67         t38_conv_info dst_t38_info;
  68 } t38_conv;
  69
  70 /* Add an T38 conversation with the given details */
  71 WS_DLL_PUBLIC
  72 void t38_add_address(packet_info *pinfo,
  73                      address *addr, int port,
  74                      int other_port,
  75                      const char *setup_method, uint32_t setup_frame_number);
  76
  77
  78 WS_DLL_PUBLIC const value_string t38_T30_indicator_vals[];
  79 WS_DLL_PUBLIC const value_string t38_T30_data_vals[];
  80
  81
  82