/* packet-q931.h
 * Declarations of exported routines and tables for Q.931 and Q.2931 frame
 * disassembly
 * Guy Harris <guy@alum.mit.edu>
 *
 * Wireshark - Network traffic analyzer
 * By Gerald Combs <gerald@wireshark.org>
 * Copyright 1998
 *
 * SPDX-License-Identifier: GPL-2.0-or-later
 */

#ifndef __PACKET_Q931_H__
#define __PACKET_Q931_H__

#include "ws_symbol_export.h"

WS_DLL_PUBLIC void dissect_q931_bearer_capability_ie(tvbuff_t *, int, int,
    proto_tree *);

extern void dissect_q931_cause_ie(tvbuff_t *, int, int,
    proto_tree *, int, uint8_t *,const value_string *);

extern void dissect_q931_progress_indicator_ie(tvbuff_t *, int, int,
    proto_tree *);

WS_DLL_PUBLIC void dissect_q931_high_layer_compat_ie(tvbuff_t *, int, int,
    proto_tree *);

extern void dissect_q931_user_user_ie(tvbuff_t *tvb, packet_info *pinfo, int offset, int len,
    proto_tree *tree);

extern value_string_ext q931_cause_location_vals_ext;

typedef struct _q931_packet_info {
       char *calling_number;
       char *called_number;
       uint8_t cause_value;
       int32_t crv;
       uint8_t message_type;
} q931_packet_info;

/*
 * the following allows TAP code access to the messages
 * without having to duplicate it. With MSVC and a
 * libwireshark.dll, we need a special declaration.
 */
WS_DLL_PUBLIC value_string_ext q931_cause_code_vals_ext;
WS_DLL_PUBLIC const value_string q931_message_type_vals[];

extern value_string_ext q931_protocol_discriminator_vals_ext;
extern value_string_ext q931_progress_description_vals_ext;
extern value_string_ext q931_call_state_vals_ext;

/*
 * Q.931 message types.
 */
#define Q931_ESCAPE               0x00
#define Q931_ALERTING             0x01
#define Q931_CALL_PROCEEDING      0x02
#define Q931_PROGRESS             0x03
#define Q931_SETUP                0x05
#define Q931_GROUIP_SERVICE       0x06
#define Q931_CONNECT              0x07
#define Q931_RESYNC_REQ           0x08
#define Q931_RESYNC_RESP          0x09
#define Q931_VERSION              0x0A
#define Q931_GROUIP_SERVICE_ACK   0x0B
#define Q931_SETUP_ACK            0x0D
#define Q931_CONNECT_ACK          0x0F
#define Q931_USER_INFORMATION     0x20
#define Q931_SUSPEND_REJECT       0x21
#define Q931_RESUME_REJECT        0x22
#define Q931_HOLD                 0x24
#define Q931_SUSPEND              0x25
#define Q931_RESUME               0x26
#define Q931_HOLD_ACK             0x28
#define Q931_SUSPEND_ACK          0x2D
#define Q931_RESUME_ACK           0x2E
#define Q931_HOLD_REJECT          0x30
#define Q931_RETRIEVE             0x31
#define Q931_RETRIEVE_ACK         0x33
#define Q931_RETRIEVE_REJECT      0x37
#define Q931_DETACH               0x40
#define Q931_DISCONNECT           0x45
#define Q931_RESTART              0x46
#define Q931_DETACH_ACKNOWLEDGE   0x48
#define Q931_RELEASE              0x4D
#define Q931_RESTART_ACK          0x4E
#define Q931_RELEASE_COMPLETE     0x5A
#define Q931_SEGMENT              0x60
#define Q931_FACILITY             0x62
#define Q931_REGISTER             0x64
#define Q931_FACILITY_ACKNOWLEDGE 0x6A
#define Q931_NOTIFY               0x6E
#define Q931_FACILITY_REJECT      0x72
#define Q931_STATUS_ENQUIRY       0x75
#define Q931_CONGESTION_CONTROL   0x79
#define Q931_INFORMATION          0x7B
#define Q931_STATUS               0x7D

/*
 * Maintenance message types.
 * AT&T TR41459, Nortel NIS A211-1, Telcordia SR-4994, ...
 */
#define DMS_SERVICE_ACKNOWLEDGE     0x07
#define DMS_SERVICE     0x0F

#endif