forked from osmocom/wireshark
118 lines
3.2 KiB
C
118 lines
3.2 KiB
C
/* packet-sccp.h
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* Definitions for Signalling Connection Control Part (SCCP) dissection
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef __PACKET_SCCP_H
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#define __PACKET_SCCP_H
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#include "ws_symbol_export.h"
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#define SCCP_MSG_TYPE_CR 0x01
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#define SCCP_MSG_TYPE_CC 0x02
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#define SCCP_MSG_TYPE_CREF 0x03
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#define SCCP_MSG_TYPE_RLSD 0x04
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#define SCCP_MSG_TYPE_RLC 0x05
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#define SCCP_MSG_TYPE_DT1 0x06
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#define SCCP_MSG_TYPE_DT2 0x07
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#define SCCP_MSG_TYPE_AK 0x08
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#define SCCP_MSG_TYPE_UDT 0x09
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#define SCCP_MSG_TYPE_UDTS 0x0a
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#define SCCP_MSG_TYPE_ED 0x0b
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#define SCCP_MSG_TYPE_EA 0x0c
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#define SCCP_MSG_TYPE_RSR 0x0d
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#define SCCP_MSG_TYPE_RSC 0x0e
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#define SCCP_MSG_TYPE_ERR 0x0f
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#define SCCP_MSG_TYPE_IT 0x10
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#define SCCP_MSG_TYPE_XUDT 0x11
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#define SCCP_MSG_TYPE_XUDTS 0x12
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#define SCCP_MSG_TYPE_LUDT 0x13
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#define SCCP_MSG_TYPE_LUDTS 0x14
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WS_DLL_PUBLIC const value_string sccp_message_type_acro_values[];
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WS_DLL_PUBLIC const value_string sccp_release_cause_values[];
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WS_DLL_PUBLIC const value_string sccp_return_cause_values[];
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WS_DLL_PUBLIC const value_string sccp_reset_cause_values[];
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WS_DLL_PUBLIC const value_string sccp_error_cause_values[];
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WS_DLL_PUBLIC const value_string sccp_refusal_cause_values[];
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/* from packet-sua.c */
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WS_DLL_PUBLIC const value_string sua_co_class_type_acro_values[];
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typedef enum _sccp_payload_t {
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SCCP_PLOAD_NONE,
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SCCP_PLOAD_BSSAP,
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SCCP_PLOAD_RANAP,
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SCCP_PLOAD_NUM_PLOADS
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} sccp_payload_t;
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typedef struct _sccp_msg_info_t {
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guint framenum;
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guint offset;
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guint type;
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union {
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struct {
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gchar* label;
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gchar* comment;
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gchar* imsi;
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struct _sccp_assoc_info_t* assoc;
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struct _sccp_msg_info_t* next;
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} co;
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struct {
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guint8* calling_gt;
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guint calling_ssn;
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guint8* called_gt;
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guint called_ssn;
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} ud;
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} data;
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} sccp_msg_info_t;
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typedef struct _sccp_assoc_info_t {
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guint32 id;
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guint32 calling_dpc;
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guint32 called_dpc;
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guint8 calling_ssn;
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guint8 called_ssn;
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gboolean has_fw_key;
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gboolean has_bw_key;
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sccp_msg_info_t* msgs;
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sccp_msg_info_t* curr_msg;
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sccp_payload_t payload;
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gchar* calling_party;
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gchar* called_party;
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gchar* extra_info;
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gchar* imsi;
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guint32 app_info; /* used only by dissectors of protocols above SCCP */
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} sccp_assoc_info_t;
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typedef struct _sccp_decode_context_t {
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guint8 message_type;
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guint dlr;
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guint slr;
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sccp_assoc_info_t* assoc;
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sccp_msg_info_t* sccp_msg;
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} sccp_decode_context_t;
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extern sccp_assoc_info_t* get_sccp_assoc(packet_info* pinfo, guint offset, sccp_decode_context_t* value);
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extern gboolean looks_like_valid_sccp(guint32 frame_num, tvbuff_t *tvb, guint8 my_mtp3_standard);
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#define INVALID_LR 0xffffff /* a reserved value */
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#define GT_SIGNAL_LENGTH 1
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#define GT_ODD_SIGNAL_MASK 0x0f
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#define GT_EVEN_SIGNAL_MASK 0xf0
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#define GT_EVEN_SIGNAL_SHIFT 4
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#define GT_MAX_SIGNALS (32*7) /* it's a bit big, but it allows for adding a lot of "(spare)" and "Unknown" values (7 chars) if there are errors - e.g. ANSI vs ITU wrongly selected */
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WS_DLL_PUBLIC const value_string sccp_address_signal_values[];
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#endif
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