epan/dissectors/packet-sccp.h

   1 /* packet-sccp.h
   2  * Definitions for Signalling Connection Control Part (SCCP) dissection
   3  *
   4  * $Id$
   5  *
   6  * Wireshark - Network traffic analyzer
   7  * By Gerald Combs <gerald@wireshark.org>
   8  * Copyright 1998 Gerald Combs
   9  *
  10  * This program is free software; you can redistribute it and/or
  11  * modify it under the terms of the GNU General Public License
  12  * as published by the Free Software Foundation; either version 2
  13  * of the License, or (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  23  */
  24
  25 #ifndef __PACKET_SCCP_H
  26 #define __PACKET_SCCP_H
  27
  28 #include "ws_symbol_export.h"
  29
  30 #define SCCP_MSG_TYPE_CR    0x01
  31 #define SCCP_MSG_TYPE_CC    0x02
  32 #define SCCP_MSG_TYPE_CREF  0x03
  33 #define SCCP_MSG_TYPE_RLSD  0x04
  34 #define SCCP_MSG_TYPE_RLC   0x05
  35 #define SCCP_MSG_TYPE_DT1   0x06
  36 #define SCCP_MSG_TYPE_DT2   0x07
  37 #define SCCP_MSG_TYPE_AK    0x08
  38 #define SCCP_MSG_TYPE_UDT   0x09
  39 #define SCCP_MSG_TYPE_UDTS  0x0a
  40 #define SCCP_MSG_TYPE_ED    0x0b
  41 #define SCCP_MSG_TYPE_EA    0x0c
  42 #define SCCP_MSG_TYPE_RSR   0x0d
  43 #define SCCP_MSG_TYPE_RSC   0x0e
  44 #define SCCP_MSG_TYPE_ERR   0x0f
  45 #define SCCP_MSG_TYPE_IT    0x10
  46 #define SCCP_MSG_TYPE_XUDT  0x11
  47 #define SCCP_MSG_TYPE_XUDTS 0x12
  48 #define SCCP_MSG_TYPE_LUDT  0x13
  49 #define SCCP_MSG_TYPE_LUDTS 0x14
  50
  51 WS_DLL_PUBLIC const value_string sccp_message_type_acro_values[];
  52 WS_DLL_PUBLIC const value_string sccp_release_cause_values[];
  53 WS_DLL_PUBLIC const value_string sccp_return_cause_values[];
  54 WS_DLL_PUBLIC const value_string sccp_reset_cause_values[];
  55 WS_DLL_PUBLIC const value_string sccp_error_cause_values[];
  56 WS_DLL_PUBLIC const value_string sccp_refusal_cause_values[];
  57
  58 /* from packet-sua.c */
  59 WS_DLL_PUBLIC const value_string sua_co_class_type_acro_values[];
  60
  61 typedef enum _sccp_payload_t {
  62     SCCP_PLOAD_NONE,
  63     SCCP_PLOAD_BSSAP,
  64     SCCP_PLOAD_RANAP,
  65     SCCP_PLOAD_NUM_PLOADS
  66 } sccp_payload_t;
  67
  68 typedef struct _sccp_msg_info_t {
  69         guint framenum;
  70         guint offset;
  71         guint type;
  72
  73         union {
  74                 struct {
  75                         gchar* label;
  76                         gchar* comment;
  77                         struct _sccp_assoc_info_t* assoc;
  78                         struct _sccp_msg_info_t* next;
  79                 } co;
  80                 struct {
  81                         guint8* calling_gt;
  82                         guint calling_ssn;
  83                         guint8* called_gt;
  84                         guint called_ssn;
  85                 } ud;
  86         } data;
  87 } sccp_msg_info_t;
  88
  89 typedef struct _sccp_assoc_info_t {
  90     guint32 id;
  91     guint32 calling_dpc;
  92     guint32 called_dpc;
  93     guint8 calling_ssn;
  94     guint8 called_ssn;
  95     gboolean has_fw_key;
  96     gboolean has_bw_key;
  97     sccp_msg_info_t* msgs;
  98     sccp_msg_info_t* curr_msg;
  99
 100     sccp_payload_t payload;
 101     gchar* calling_party;
 102     gchar* called_party;
 103     gchar* extra_info;
 104     guint32 app_info;  /* used only by dissectors of protocols above SCCP */
 105
 106 } sccp_assoc_info_t;
 107
 108 extern void reset_sccp_assoc(void);
 109 extern sccp_assoc_info_t* get_sccp_assoc(packet_info* pinfo, guint offset, guint32 src_lr, guint32 dst_lr, guint msg_type);
 110 extern gboolean looks_like_valid_sccp(guint32 frame_num, tvbuff_t *tvb, guint8 my_mtp3_standard);
 111
 112 #define GT_SIGNAL_LENGTH     1
 113 #define GT_ODD_SIGNAL_MASK   0x0f
 114 #define GT_EVEN_SIGNAL_MASK  0xf0
 115 #define GT_EVEN_SIGNAL_SHIFT 4
 116 #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 */
 117 WS_DLL_PUBLIC const value_string sccp_address_signal_values[];
 118
 119 #endif