packet-t38.h

/* Do not modify this file. Changes will be overwritten.                      */
/* Generated automatically by the ASN.1 to Wireshark dissector compiler       */
/* packet-t38.h                                                               */
/* asn2wrs.py -q -L -p t38 -c ./t38.cnf -s ./packet-t38-template -D . -O ../.. T38_2002.asn */
 
/* packet-t38.h
 *
 * Routines for T38 dissection
 * 2003 Hans Viens
 * 2004 Alejandro Vaquero, add support to conversation
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <[email protected]>
 * Copyright 1998 Gerald Combs
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */
 
#include "ws_symbol_export.h"
 
#define MAX_T38_DATA_ITEMS 4
#define MAX_T38_DESC 128
 
typedef struct _t38_packet_info {
    uint16_t seq_num;   /* UDPTLPacket sequence number */
    int32_t type_msg;   /* 0=t30-indicator    1=data */
    uint32_t t30ind_value;
    uint32_t data_value;    /* standard and speed */
    uint32_t setup_frame_number;
    uint32_t Data_Field_field_type_value;
    uint8_t t30_Facsimile_Control;
    char    desc[MAX_T38_DESC]; /* Description used to be displayed in the frame label Graph Analysis */
    char    desc_comment[MAX_T38_DESC]; /* Description used to be displayed in the Comment Graph Analysis */
    double time_first_t4_data;
    uint32_t frame_num_first_t4_data;
} t38_packet_info;
 
 
#define MAX_T38_SETUP_METHOD_SIZE 7
 
 
/* Info to save the State to reassemble Data (e.g. HDLC) and the Setup (e.g. SDP) in T38 conversations */
typedef struct _t38_conv_info t38_conv_info;
 
struct _t38_conv_info {
 
    uint32_t reass_ID;
    int reass_start_seqnum;
    uint32_t reass_start_data_field;
    uint32_t reass_data_type;
    int32_t last_seqnum; /* used to avoid duplicated seq num shown in the Graph Analysis */
    uint32_t packet_lost;
    uint32_t burst_lost;
    double time_first_t4_data;
    uint32_t additional_hdlc_data_field_counter;
    int32_t seqnum_prev_data_field;
    t38_conv_info *next;
 
};
 
/* Info to save the State to reassemble Data (e.g. HDLC) and the Setup (e.g. SDP) in T38 conversations */
typedef struct _t38_conv
{
    char    setup_method[MAX_T38_SETUP_METHOD_SIZE + 1];
    uint32_t setup_frame_number;
    t38_conv_info src_t38_info;
    t38_conv_info dst_t38_info;
} t38_conv;
 
/* Add an T38 conversation with the given details */
WS_DLL_PUBLIC
void t38_add_address(packet_info *pinfo,
                     address *addr, int port,
                     int other_port,
                     const char *setup_method, uint32_t setup_frame_number);
 
 
WS_DLL_PUBLIC const value_string t38_T30_indicator_vals[];
WS_DLL_PUBLIC const value_string t38_T30_data_vals[];