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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 */
43typedef 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 */
71WS_DLL_PUBLIC
72void 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
78extern const value_string t38_T30_indicator_vals[];
79extern const value_string t38_T30_data_vals[];
80
81
82
_address
Definition address.h:58
_packet_info
Definition packet_info.h:43
_t38_conv_info
Definition packet-t38.h:45
_t38_conv
Definition packet-t38.h:63
_t38_packet_info
Definition packet-t38.h:24
_value_string
Mapping between a 32-bit integer value and its string representation.
Definition value_string.h:33