Wireshark  4.3.0
The Wireshark network protocol analyzer
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  guint16 seq_num; /* UDPTLPacket sequence number */
26  gint32 type_msg; /* 0=t30-indicator 1=data */
27  guint32 t30ind_value;
28  guint32 data_value; /* standard and speed */
29  guint32 setup_frame_number;
30  guint32 Data_Field_field_type_value;
31  guint8 t30_Facsimile_Control;
32  gchar desc[MAX_T38_DESC]; /* Description used to be displayed in the frame label Graph Analysis */
33  gchar desc_comment[MAX_T38_DESC]; /* Description used to be displayed in the Comment Graph Analysis */
34  double time_first_t4_data;
35  guint32 frame_num_first_t4_data;
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 
46 
47  guint32 reass_ID;
48  int reass_start_seqnum;
49  guint32 reass_start_data_field;
50  guint32 reass_data_type;
51  gint32 last_seqnum; /* used to avoid duplicated seq num shown in the Graph Analysis */
52  guint32 packet_lost;
53  guint32 burst_lost;
54  double time_first_t4_data;
55  guint32 additional_hdlc_data_field_counter;
56  gint32 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  gchar setup_method[MAX_T38_SETUP_METHOD_SIZE + 1];
65  guint32 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 gchar *setup_method, guint32 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 
Definition: address.h:56
Definition: packet_info.h:44
Definition: packet-t38.h:45
Definition: packet-t38.h:63
Definition: packet-t38.h:24
Definition: value_string.h:26