2493 lines
133 KiB
C
2493 lines
133 KiB
C
/* packet-sua.c
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* Routines for SS7 SCCP-User Adaptation Layer (SUA) dissection
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* It is hopefully (needs testing) compliant to
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* https://tools.ietf.org/html/draft-ietf-sigtran-sua-08
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* https://tools.ietf.org/html/rfc3868
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*
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* Copyright 2002, 2003, 2004 Michael Tuexen <tuexen [AT] fh-muenster.de>
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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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* Copied from README.developer
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/address_types.h>
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#include <epan/prefs.h>
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#include <epan/sctpppids.h>
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#include <epan/tap.h>
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#include <epan/to_str.h>
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#include <wsutil/str_util.h>
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#include <wsutil/ws_roundup.h>
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#include "packet-mtp3.h"
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#include "packet-sccp.h"
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void proto_register_sua(void);
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void proto_reg_handoff_sua(void);
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#define SCTP_PORT_SUA 14001
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#define RESERVED_1_LENGTH 1
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#define RESERVED_2_LENGTH 2
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#define RESERVED_3_LENGTH 3
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#define VERSION_LENGTH 1
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#define RESERVED_LENGTH 1
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#define MESSAGE_CLASS_LENGTH 1
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#define MESSAGE_TYPE_LENGTH 1
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#define MESSAGE_LENGTH_LENGTH 4
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#define COMMON_HEADER_LENGTH (VERSION_LENGTH + RESERVED_LENGTH + MESSAGE_CLASS_LENGTH + \
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MESSAGE_TYPE_LENGTH + MESSAGE_LENGTH_LENGTH)
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#define COMMON_HEADER_OFFSET 0
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#define VERSION_OFFSET COMMON_HEADER_OFFSET
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#define RESERVED_OFFSET (VERSION_OFFSET + VERSION_LENGTH)
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#define MESSAGE_CLASS_OFFSET (RESERVED_OFFSET + RESERVED_LENGTH)
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#define MESSAGE_TYPE_OFFSET (MESSAGE_CLASS_OFFSET + MESSAGE_CLASS_LENGTH)
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#define MESSAGE_LENGTH_OFFSET (MESSAGE_TYPE_OFFSET + MESSAGE_TYPE_LENGTH)
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#define PARAMETER_TAG_LENGTH 2
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#define PARAMETER_LENGTH_LENGTH 2
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#define PARAMETER_HEADER_LENGTH (PARAMETER_TAG_LENGTH + PARAMETER_LENGTH_LENGTH)
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#define PARAMETER_TAG_OFFSET 0
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#define PARAMETER_LENGTH_OFFSET (PARAMETER_TAG_OFFSET + PARAMETER_TAG_LENGTH)
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#define PARAMETER_VALUE_OFFSET (PARAMETER_LENGTH_OFFSET + PARAMETER_LENGTH_LENGTH)
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#define PARAMETER_HEADER_OFFSET PARAMETER_TAG_OFFSET
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#define PROTOCOL_VERSION_RELEASE_1 1
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static const value_string protocol_version_values[] = {
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{ PROTOCOL_VERSION_RELEASE_1, "Release 1" },
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{ 0, NULL } };
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#define MESSAGE_CLASS_MGMT_MESSAGE 0
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#define MESSAGE_CLASS_TFER_MESSAGE 1
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#define MESSAGE_CLASS_SSNM_MESSAGE 2
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#define MESSAGE_CLASS_ASPSM_MESSAGE 3
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#define MESSAGE_CLASS_ASPTM_MESSAGE 4
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#define MESSAGE_CLASS_CL_MESSAGE 7
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#define MESSAGE_CLASS_CO_MESSAGE 8
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#define MESSAGE_CLASS_RKM_MESSAGE 9
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static const value_string message_class_values[] = {
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{ MESSAGE_CLASS_MGMT_MESSAGE, "Management messages" },
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{ MESSAGE_CLASS_SSNM_MESSAGE, "SS7 signalling network management messages" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE, "ASP state maintenance messages" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE, "ASP traffic maintenance messages" },
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{ MESSAGE_CLASS_CL_MESSAGE, "Connectionless messages" },
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{ MESSAGE_CLASS_CO_MESSAGE, "Connection-Oriented messages" },
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{ MESSAGE_CLASS_RKM_MESSAGE, "Routing key management Messages" },
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{ 0, NULL } };
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#define MESSAGE_TYPE_ERR 0
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#define MESSAGE_TYPE_NTFY 1
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#define MESSAGE_TYPE_DUNA 1
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#define MESSAGE_TYPE_DAVA 2
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#define MESSAGE_TYPE_DAUD 3
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#define MESSAGE_TYPE_SCON 4
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#define MESSAGE_TYPE_DUPU 5
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#define MESSAGE_TYPE_DRST 6
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#define MESSAGE_TYPE_UP 1
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#define MESSAGE_TYPE_DOWN 2
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#define MESSAGE_TYPE_BEAT 3
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#define MESSAGE_TYPE_UP_ACK 4
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#define MESSAGE_TYPE_DOWN_ACK 5
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#define MESSAGE_TYPE_BEAT_ACK 6
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#define MESSAGE_TYPE_ACTIVE 1
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#define MESSAGE_TYPE_INACTIVE 2
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#define MESSAGE_TYPE_ACTIVE_ACK 3
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#define MESSAGE_TYPE_INACTIVE_ACK 4
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#define MESSAGE_TYPE_CLDT 1
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#define MESSAGE_TYPE_CLDR 2
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#define MESSAGE_TYPE_CORE 1
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#define MESSAGE_TYPE_COAK 2
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#define MESSAGE_TYPE_COREF 3
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#define MESSAGE_TYPE_RELRE 4
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#define MESSAGE_TYPE_RELCO 5
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#define MESSAGE_TYPE_RESCO 6
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#define MESSAGE_TYPE_RESRE 7
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#define MESSAGE_TYPE_CODT 8
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#define MESSAGE_TYPE_CODA 9
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#define MESSAGE_TYPE_COERR 10
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#define MESSAGE_TYPE_COIT 11
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#define MESSAGE_TYPE_REG_REQ 1
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#define MESSAGE_TYPE_REG_RSP 2
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#define MESSAGE_TYPE_DEREG_REQ 3
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#define MESSAGE_TYPE_DEREG_RSP 4
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static const value_string message_class_type_values[] = {
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{ MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_ERR, "Error (ERR)" },
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{ MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_NTFY, "Notify (NTFY)" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUNA, "Destination unavailable (DUNA)" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAVA, "Destination available (DAVA)" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAUD, "Destination state audit (DAUD)" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_SCON, "SS7 Network congestion state (SCON)" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUPU, "Destination userpart unavailable (DUPU)" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DRST, "Destination Restricted (DRST)" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP, "ASP up (UP)" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN, "ASP down (DOWN)" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT, "Heartbeat (BEAT)" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP_ACK, "ASP up ack (UP ACK)" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN_ACK, "ASP down ack (DOWN ACK)" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT_ACK, "Heartbeat ack (BEAT ACK)" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE , "ASP active (ACTIVE)" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE , "ASP inactive (INACTIVE)" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE_ACK , "ASP active ack (ACTIVE ACK)" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE_ACK , "ASP inactive ack (INACTIVE ACK)" },
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{ MESSAGE_CLASS_CL_MESSAGE * 256 + MESSAGE_TYPE_CLDR , "Connectionless Data Response (CLDR)" },
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{ MESSAGE_CLASS_CL_MESSAGE * 256 + MESSAGE_TYPE_CLDT , "Connectionless Data Transfer (CLDT)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_CORE , "Connection Request (CORE)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_COAK , "Connection Acknowledge (COAK)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_COREF , "Connection Refused (COREF)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_RELRE , "Release Request (RELRE)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_RELCO , "Release Complete (RELCO)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_RESCO , "Reset Confirm (RESCO)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_RESRE , "Reset Request (RESRE)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_CODT , "Connection Oriented Data Transfer (CODT)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_CODA , "Connection Oriented Data Acknowledge (CODA)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_COERR , "Connection Oriented Error (COERR)" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_COIT , "Inactivity Test (COIT)" },
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{ MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_REG_REQ , "Registration Request (REG_REQ)" },
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{ MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_REG_RSP , "Registration Response (REG_RSP)" },
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{ MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_REQ , "Deregistration Request (DEREG_REQ)" },
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{ MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_RSP , "Deregistration Response (DEREG_RSP)" },
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{ 0, NULL } };
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static const value_string message_class_type_acro_values[] = {
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{ MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_ERR, "ERR" },
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{ MESSAGE_CLASS_MGMT_MESSAGE * 256 + MESSAGE_TYPE_NTFY, "NTFY" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUNA, "DUNA" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAVA, "DAVA" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DAUD, "DAUD" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_SCON, "SCON" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DUPU, "DUPU" },
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{ MESSAGE_CLASS_SSNM_MESSAGE * 256 + MESSAGE_TYPE_DRST, "DRST" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP, "ASP_UP" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN, "ASP_DOWN" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT, "BEAT" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_UP_ACK, "ASP_UP_ACK" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_DOWN_ACK, "ASP_DOWN_ACK" },
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{ MESSAGE_CLASS_ASPSM_MESSAGE * 256 + MESSAGE_TYPE_BEAT_ACK, "BEAT_ACK" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE , "ASP_ACTIVE" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE , "ASP_INACTIVE" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_ACTIVE_ACK , "ASP_ACTIVE_ACK" },
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{ MESSAGE_CLASS_ASPTM_MESSAGE * 256 + MESSAGE_TYPE_INACTIVE_ACK , "ASP_INACTIVE_ACK" },
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{ MESSAGE_CLASS_CL_MESSAGE * 256 + MESSAGE_TYPE_CLDR , "CLDR" },
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{ MESSAGE_CLASS_CL_MESSAGE * 256 + MESSAGE_TYPE_CLDT , "CLDT" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_CORE , "CORE" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_COAK , "COAK" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_COREF , "COREF" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_RELRE , "RELRE" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_RELCO , "RELCO" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_RESCO , "RESCO" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_RESRE , "RESRE" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_CODT , "CODT" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_CODA , "CODA" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_COERR , "COERR" },
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{ MESSAGE_CLASS_CO_MESSAGE * 256 + MESSAGE_TYPE_COIT , "COIT" },
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{ MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_REG_REQ , "REG_REQ" },
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{ MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_REG_RSP , "REG_RSP" },
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{ MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_REQ , "DEREG_REQ" },
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{ MESSAGE_CLASS_RKM_MESSAGE * 256 + MESSAGE_TYPE_DEREG_RSP , "DEREG_RSP" },
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{ 0, NULL } };
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const value_string sua_co_class_type_acro_values[] = {
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{ MESSAGE_TYPE_CORE , "CORE" },
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{ MESSAGE_TYPE_COAK , "COAK" },
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{ MESSAGE_TYPE_COREF , "COREF" },
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{ MESSAGE_TYPE_RELRE , "RELRE" },
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{ MESSAGE_TYPE_RELCO , "RELCO" },
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{ MESSAGE_TYPE_RESCO , "RESCO" },
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{ MESSAGE_TYPE_RESRE , "RESRE" },
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{ MESSAGE_TYPE_CODT , "CODT" },
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{ MESSAGE_TYPE_CODA , "CODA" },
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{ MESSAGE_TYPE_COERR , "COERR" },
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{ MESSAGE_TYPE_COIT , "COIT" },
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{ 0, NULL }
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};
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/* Initialize the protocol and registered fields */
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static int proto_sua = -1;
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static int hf_sua_version = -1;
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static int hf_sua_reserved = -1;
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static int hf_sua_message_class = -1;
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static int hf_sua_message_type = -1;
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static int hf_sua_message_length = -1;
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static int hf_sua_parameter_tag = -1;
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static int hf_sua_v8_parameter_tag = -1;
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static int hf_sua_parameter_length = -1;
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static int hf_sua_parameter_value = -1;
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static int hf_sua_parameter_padding = -1;
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static int hf_sua_info_string = -1;
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static int hf_sua_routing_context = -1;
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static int hf_sua_diagnostic_information_info = -1;
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static int hf_sua_heartbeat_data = -1;
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static int hf_sua_traffic_mode_type = -1;
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static int hf_sua_error_code = -1;
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static int hf_sua_v8_error_code = -1;
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static int hf_sua_status_type = -1;
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static int hf_sua_status_info = -1;
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static int hf_sua_congestion_level = -1;
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static int hf_sua_asp_identifier = -1;
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static int hf_sua_mask = -1;
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static int hf_sua_dpc = -1;
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static int hf_sua_registration_status = -1;
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static int hf_sua_deregistration_status = -1;
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static int hf_sua_local_routing_key_identifier = -1;
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static int hf_sua_source_address_routing_indicator = -1;
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static int hf_sua_source_address_reserved_bits = -1;
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static int hf_sua_source_address_gt_bit = -1;
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static int hf_sua_source_address_pc_bit = -1;
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static int hf_sua_source_address_ssn_bit = -1;
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static int hf_sua_source_gt_reserved = -1;
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static int hf_sua_source_gti = -1;
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static int hf_sua_source_number_of_digits = -1;
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static int hf_sua_source_translation_type = -1;
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static int hf_sua_source_numbering_plan = -1;
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static int hf_sua_source_nature_of_address = -1;
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static int hf_sua_source_global_title_digits = -1;
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static int hf_sua_source_point_code = -1;
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static int hf_sua_source_ssn_reserved = -1;
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static int hf_sua_source_ssn_number = -1;
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static int hf_sua_source_ipv4 = -1;
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static int hf_sua_source_hostname = -1;
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static int hf_sua_source_ipv6 = -1;
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static int hf_sua_destination_address_routing_indicator = -1;
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static int hf_sua_destination_address_reserved_bits = -1;
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static int hf_sua_destination_address_gt_bit = -1;
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static int hf_sua_destination_address_pc_bit = -1;
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static int hf_sua_destination_address_ssn_bit = -1;
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static int hf_sua_dest_gt_reserved = -1;
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static int hf_sua_dest_gti = -1;
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static int hf_sua_dest_number_of_digits = -1;
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static int hf_sua_dest_translation_type = -1;
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static int hf_sua_dest_numbering_plan = -1;
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static int hf_sua_dest_nature_of_address = -1;
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static int hf_sua_dest_global_title_digits = -1;
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static int hf_sua_dest_point_code = -1;
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static int hf_sua_dest_ssn_reserved = -1;
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static int hf_sua_dest_ssn_number = -1;
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static int hf_sua_dest_ipv4 = -1;
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static int hf_sua_dest_hostname = -1;
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static int hf_sua_dest_ipv6 = -1;
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static int hf_sua_ss7_hop_counter_counter = -1;
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static int hf_sua_ss7_hop_counter_reserved = -1;
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static int hf_sua_destination_reference_number = -1;
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static int hf_sua_source_reference_number = -1;
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static int hf_sua_cause_reserved = -1;
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static int hf_sua_cause_type = -1;
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static int hf_sua_cause_value = -1;
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static int hf_sua_sequence_number_reserved = -1;
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static int hf_sua_sequence_number_rec_number = -1;
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static int hf_sua_sequence_number_spare_bit = -1;
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static int hf_sua_sequence_number_sent_number = -1;
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static int hf_sua_sequence_number_more_data_bit = -1;
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static int hf_sua_receive_sequence_number_reserved = -1;
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static int hf_sua_receive_sequence_number_number = -1;
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static int hf_sua_receive_sequence_number_spare_bit = -1;
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static int hf_sua_protocol_classes = -1;
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static int hf_sua_protocol_class_flags = -1;
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static int hf_sua_asp_capabilities_reserved = -1;
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static int hf_sua_asp_capabilities_reserved_bits = -1;
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static int hf_sua_asp_capabilities_a_bit =-1;
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static int hf_sua_asp_capabilities_b_bit =-1;
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static int hf_sua_asp_capabilities_c_bit =-1;
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static int hf_sua_asp_capabilities_d_bit =-1;
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static int hf_sua_asp_capabilities_interworking = -1;
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static int hf_sua_credit = -1;
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static int hf_sua_data = -1;
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static int hf_sua_cause = -1;
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static int hf_sua_user = -1;
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static int hf_sua_network_appearance = -1;
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static int hf_sua_correlation_id = -1;
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static int hf_sua_importance_reserved = -1;
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static int hf_sua_importance = -1;
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static int hf_sua_message_priority_reserved = -1;
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static int hf_sua_message_priority = -1;
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static int hf_sua_protocol_class_reserved = -1;
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static int hf_sua_return_on_error_bit = -1;
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static int hf_sua_protocol_class = -1;
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static int hf_sua_sequence_control = -1;
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static int hf_sua_first_remaining = -1;
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static int hf_sua_first_bit = -1;
|
|
static int hf_sua_number_of_remaining_segments = -1;
|
|
static int hf_sua_segmentation_reference = -1;
|
|
static int hf_sua_smi = -1;
|
|
static int hf_sua_smi_reserved = -1;
|
|
static int hf_sua_tid_label_start = -1;
|
|
static int hf_sua_tid_label_end = -1;
|
|
static int hf_sua_tid_label_value = -1;
|
|
static int hf_sua_drn_label_start = -1;
|
|
static int hf_sua_drn_label_end = -1;
|
|
static int hf_sua_drn_label_value = -1;
|
|
|
|
static int hf_sua_assoc_id = -1;
|
|
|
|
/* Initialize the subtree pointers */
|
|
static gint ett_sua = -1;
|
|
static gint ett_sua_parameter = -1;
|
|
static gint ett_sua_source_address_indicator = -1;
|
|
static gint ett_sua_destination_address_indicator = -1;
|
|
static gint ett_sua_affected_destination = -1;
|
|
static gint ett_sua_first_remaining = -1;
|
|
static gint ett_sua_sequence_number_rec_number = -1;
|
|
static gint ett_sua_sequence_number_sent_number = -1;
|
|
static gint ett_sua_receive_sequence_number_number = -1;
|
|
static gint ett_sua_return_on_error_bit_and_protocol_class = -1;
|
|
static gint ett_sua_protocol_classes = -1;
|
|
static gint ett_sua_assoc = -1;
|
|
|
|
static int sua_tap = -1;
|
|
|
|
static mtp3_addr_pc_t *sua_dpc;
|
|
static mtp3_addr_pc_t *sua_opc;
|
|
static guint16 sua_ri;
|
|
static gchar *sua_source_gt;
|
|
static gchar *sua_destination_gt;
|
|
|
|
static dissector_handle_t sua_handle;
|
|
static dissector_handle_t sua_info_str_handle;
|
|
static dissector_table_t sua_parameter_table;
|
|
static dissector_table_t sccp_ssn_dissector_table;
|
|
static heur_dissector_list_t heur_subdissector_list;
|
|
|
|
static guint32 message_class, message_type, drn, srn;
|
|
|
|
static int ss7pc_address_type = -1;
|
|
|
|
#define INVALID_SSN 0xff
|
|
static guint next_assoc_id = 1;
|
|
|
|
/* Based om association tracking in the SCCP dissector */
|
|
typedef struct _sua_assoc_info_t {
|
|
guint assoc_id;
|
|
guint32 calling_routing_ind;
|
|
guint32 called_routing_ind;
|
|
guint32 calling_dpc;
|
|
guint32 called_dpc;
|
|
guint8 calling_ssn;
|
|
guint8 called_ssn;
|
|
gboolean has_bw_key;
|
|
gboolean has_fw_key;
|
|
} sua_assoc_info_t;
|
|
|
|
static wmem_tree_t* assocs = NULL;
|
|
static sua_assoc_info_t* assoc;
|
|
static sua_assoc_info_t no_sua_assoc = {
|
|
0, /* assoc_id */
|
|
0, /* calling_routing_ind */
|
|
0, /* called_routing_ind */
|
|
0, /* calling_dpc */
|
|
0, /* called_dpc */
|
|
INVALID_SSN, /* calling_ssn */
|
|
INVALID_SSN, /* called_ssn */
|
|
FALSE, /* has_bw_key */
|
|
FALSE /* has_fw_key */
|
|
};
|
|
|
|
static sua_assoc_info_t *
|
|
new_assoc(guint32 calling, guint32 called)
|
|
{
|
|
sua_assoc_info_t *a = wmem_new0(wmem_file_scope(), sua_assoc_info_t);
|
|
|
|
a->assoc_id = next_assoc_id++;
|
|
a->calling_routing_ind = 0;
|
|
a->called_routing_ind = 0;
|
|
a->calling_dpc = calling;
|
|
a->called_dpc = called;
|
|
a->calling_ssn = INVALID_SSN;
|
|
a->called_ssn = INVALID_SSN;
|
|
|
|
return a;
|
|
}
|
|
|
|
static sua_assoc_info_t*
|
|
sua_assoc(packet_info* pinfo, address* opc, address* dpc, guint src_rn, guint dst_rn)
|
|
{
|
|
guint32 opck, dpck;
|
|
|
|
if (!src_rn && !dst_rn) {
|
|
return &no_sua_assoc;
|
|
}
|
|
|
|
opck = opc->type == ss7pc_address_type ? mtp3_pc_hash((const mtp3_addr_pc_t *)opc->data) : g_str_hash(address_to_str(wmem_packet_scope(), opc));
|
|
dpck = dpc->type == ss7pc_address_type ? mtp3_pc_hash((const mtp3_addr_pc_t *)dpc->data) : g_str_hash(address_to_str(wmem_packet_scope(), dpc));
|
|
|
|
switch (message_type) {
|
|
case MESSAGE_TYPE_CORE:
|
|
{
|
|
/* Calling and called is seen from initiator of CORE */
|
|
wmem_tree_key_t bw_key[4];
|
|
|
|
bw_key[0].length = 1;
|
|
bw_key[0].key = &dpck;
|
|
|
|
bw_key[1].length = 1;
|
|
bw_key[1].key = &opck;
|
|
|
|
bw_key[2].length = 1;
|
|
bw_key[2].key = &src_rn;
|
|
|
|
bw_key[3].length = 0;
|
|
bw_key[3].key = NULL;
|
|
|
|
|
|
if ( !(assoc = (sua_assoc_info_t *)wmem_tree_lookup32_array(assocs,bw_key)) && ! pinfo->fd->visited) {
|
|
assoc = new_assoc(opck, dpck);
|
|
wmem_tree_insert32_array(assocs,bw_key,assoc);
|
|
assoc->has_bw_key = TRUE;
|
|
/*ws_warning("CORE dpck %u,opck %u,src_rn %u",dpck,opck,src_rn);*/
|
|
}
|
|
break;
|
|
|
|
}
|
|
|
|
case MESSAGE_TYPE_COAK:
|
|
{
|
|
wmem_tree_key_t fw_key[4];
|
|
wmem_tree_key_t bw_key[4];
|
|
|
|
fw_key[0].length = 1;
|
|
fw_key[0].key = &dpck;
|
|
|
|
fw_key[1].length = 1;
|
|
fw_key[1].key = &opck;
|
|
|
|
fw_key[2].length = 1;
|
|
fw_key[2].key = &src_rn;
|
|
|
|
fw_key[3].length = 0;
|
|
fw_key[3].key = NULL;
|
|
|
|
|
|
bw_key[0].length = 1;
|
|
bw_key[0].key = &opck;
|
|
|
|
bw_key[1].length = 1;
|
|
bw_key[1].key = &dpck;
|
|
|
|
bw_key[2].length = 1;
|
|
bw_key[2].key = &dst_rn;
|
|
|
|
bw_key[3].length = 0;
|
|
bw_key[3].key = NULL;
|
|
/*ws_warning("MESSAGE_TYPE_COAK dst_rn %u,src_rn %u ",dst_rn,src_rn);*/
|
|
if ( ( assoc = (sua_assoc_info_t *)wmem_tree_lookup32_array(assocs, bw_key) ) ) {
|
|
goto got_assoc;
|
|
}
|
|
if ( (assoc = (sua_assoc_info_t *)wmem_tree_lookup32_array(assocs, fw_key) ) ) {
|
|
goto got_assoc;
|
|
}
|
|
|
|
assoc = new_assoc(dpck,opck);
|
|
|
|
got_assoc:
|
|
|
|
pinfo->p2p_dir = P2P_DIR_RECV;
|
|
|
|
if ( ! pinfo->fd->visited && ! assoc->has_bw_key ) {
|
|
wmem_tree_insert32_array(assocs, bw_key, assoc);
|
|
assoc->has_bw_key = TRUE;
|
|
}
|
|
|
|
if ( ! pinfo->fd->visited && ! assoc->has_fw_key ) {
|
|
wmem_tree_insert32_array(assocs, fw_key, assoc);
|
|
assoc->has_fw_key = TRUE;
|
|
}
|
|
|
|
break;
|
|
}
|
|
|
|
default:
|
|
{
|
|
wmem_tree_key_t key[4];
|
|
|
|
key[0].length = 1;
|
|
key[0].key = &opck;
|
|
|
|
key[1].length = 1;
|
|
key[1].key = &dpck;
|
|
|
|
key[2].length = 1;
|
|
key[2].key = &dst_rn;
|
|
|
|
key[3].length = 0;
|
|
key[3].key = NULL;
|
|
|
|
assoc = (sua_assoc_info_t *)wmem_tree_lookup32_array(assocs,key);
|
|
/* Should a check be made on pinfo->p2p_dir ??? */
|
|
break;
|
|
}
|
|
}
|
|
|
|
return assoc ? assoc : &no_sua_assoc;
|
|
}
|
|
|
|
/* stuff for supporting multiple versions */
|
|
typedef enum {
|
|
SUA_V08,
|
|
SUA_RFC
|
|
} Version_Type;
|
|
|
|
static gint version = SUA_RFC;
|
|
static gboolean set_addresses = FALSE;
|
|
|
|
static void
|
|
dissect_parameters(tvbuff_t *tlv_tvb, packet_info *pinfo, proto_tree *tree, tvbuff_t **data_tvb, guint8 *source_ssn, guint8 *dest_ssn);
|
|
|
|
static void
|
|
dissect_common_header(tvbuff_t *common_header_tvb, packet_info *pinfo, proto_tree *sua_tree)
|
|
{
|
|
|
|
message_class = tvb_get_guint8(common_header_tvb, MESSAGE_CLASS_OFFSET);
|
|
message_type = tvb_get_guint8(common_header_tvb, MESSAGE_TYPE_OFFSET);
|
|
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "%s ", val_to_str_const(message_class * 256 + message_type, message_class_type_acro_values, "reserved"));
|
|
|
|
if (sua_tree) {
|
|
/* add the components of the common header to the protocol tree */
|
|
proto_tree_add_item(sua_tree, hf_sua_version, common_header_tvb, VERSION_OFFSET, VERSION_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(sua_tree, hf_sua_reserved, common_header_tvb, RESERVED_OFFSET, RESERVED_LENGTH, ENC_NA);
|
|
proto_tree_add_item(sua_tree, hf_sua_message_class, common_header_tvb, MESSAGE_CLASS_OFFSET, MESSAGE_CLASS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_uint_format_value(sua_tree, hf_sua_message_type, common_header_tvb, MESSAGE_TYPE_OFFSET, MESSAGE_TYPE_LENGTH, message_type, "%s (%u)",
|
|
val_to_str_const(message_class * 256 + message_type, message_class_type_values, "reserved"), message_type);
|
|
proto_tree_add_item(sua_tree, hf_sua_message_length, common_header_tvb, MESSAGE_LENGTH_OFFSET, MESSAGE_LENGTH_LENGTH, ENC_BIG_ENDIAN);
|
|
};
|
|
}
|
|
|
|
#define INFO_STRING_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_info_string_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 info_string_length;
|
|
tvbuff_t *next_tvb;
|
|
|
|
|
|
info_string_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
|
|
/* If we have a SUA Info String sub dissector call it */
|
|
if(sua_info_str_handle) {
|
|
next_tvb = tvb_new_subset_length(parameter_tvb, INFO_STRING_OFFSET, info_string_length);
|
|
call_dissector(sua_info_str_handle, next_tvb, pinfo, parameter_tree);
|
|
return;
|
|
}
|
|
|
|
proto_tree_add_item(parameter_tree, hf_sua_info_string, parameter_tvb, INFO_STRING_OFFSET, info_string_length, ENC_UTF_8);
|
|
proto_item_append_text(parameter_item, " (%s)",
|
|
tvb_format_text(pinfo->pool, parameter_tvb, INFO_STRING_OFFSET, info_string_length));
|
|
}
|
|
|
|
#define ROUTING_CONTEXT_LENGTH 4
|
|
|
|
static void
|
|
dissect_routing_context_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 number_of_contexts, context_number;
|
|
gint context_offset;
|
|
|
|
number_of_contexts = (tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH) / 4;
|
|
context_offset = PARAMETER_VALUE_OFFSET;
|
|
for(context_number=0; context_number < number_of_contexts; context_number++) {
|
|
proto_tree_add_item(parameter_tree, hf_sua_routing_context, parameter_tvb, context_offset, ROUTING_CONTEXT_LENGTH, ENC_BIG_ENDIAN);
|
|
context_offset += ROUTING_CONTEXT_LENGTH;
|
|
};
|
|
proto_item_append_text(parameter_item, " (%u context%s)", number_of_contexts, plurality(number_of_contexts, "", "s"));
|
|
}
|
|
|
|
#define DIAGNOSTIC_INFO_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_diagnostic_information_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 diag_info_length;
|
|
|
|
diag_info_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
|
|
proto_tree_add_item(parameter_tree, hf_sua_diagnostic_information_info, parameter_tvb, DIAGNOSTIC_INFO_OFFSET, diag_info_length, ENC_NA);
|
|
proto_item_append_text(parameter_item, " (%u byte%s)", diag_info_length, plurality(diag_info_length, "", "s"));
|
|
}
|
|
|
|
#define HEARTBEAT_DATA_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_heartbeat_data_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 heartbeat_data_length;
|
|
|
|
heartbeat_data_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
|
|
proto_tree_add_item(parameter_tree, hf_sua_heartbeat_data, parameter_tvb, HEARTBEAT_DATA_OFFSET, heartbeat_data_length, ENC_NA);
|
|
proto_item_append_text(parameter_item, " (%u byte%s)", heartbeat_data_length, plurality(heartbeat_data_length, "", "s"));
|
|
}
|
|
|
|
#define TRAFFIC_MODE_TYPE_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define TRAFFIC_MODE_TYPE_LENGTH 4
|
|
|
|
static const value_string traffic_mode_type_values[] = {
|
|
{ 1, "Over-ride" },
|
|
{ 2, "Load-share" },
|
|
{ 3, "Broadcast" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_traffic_mode_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_traffic_mode_type, parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET, TRAFFIC_MODE_TYPE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, TRAFFIC_MODE_TYPE_OFFSET), traffic_mode_type_values, "unknown"));
|
|
}
|
|
|
|
#define ERROR_CODE_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define ERROR_CODE_LENGTH 4
|
|
|
|
static const value_string v8_error_code_values[] = {
|
|
{ 0x01, "Invalid version" },
|
|
{ 0x02, "Invalid interface identifier" },
|
|
{ 0x03, "Unsupported message class" },
|
|
{ 0x04, "Unsupported message type" },
|
|
{ 0x05, "Unsupported traffic handling mode" },
|
|
{ 0x06, "Unexpected message" },
|
|
{ 0x07, "Protocol error" },
|
|
{ 0x09, "Invalid stream identifier" },
|
|
{ 0x0d, "Refused - management blocking" },
|
|
{ 0x0e, "ASP identifier required" },
|
|
{ 0x0f, "Invalid ASP identifier" },
|
|
{ 0x11, "Invalid parameter value" },
|
|
{ 0x12, "Parameter field error" },
|
|
{ 0x13, "Unexpected parameter" },
|
|
{ 0x14, "Destination status unknown" },
|
|
{ 0x15, "Invalid network appearance" },
|
|
{ 0x16, "Missing parameter" },
|
|
{ 0x17, "Routing key change refused" },
|
|
{ 0x18, "Invalid loadsharing label" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_v8_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_v8_error_code, parameter_tvb, ERROR_CODE_OFFSET, ERROR_CODE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, ERROR_CODE_OFFSET), v8_error_code_values, "unknown"));
|
|
}
|
|
|
|
static const value_string error_code_values[] = {
|
|
{ 0x01, "Invalid version" },
|
|
{ 0x03, "Unsupported message class" },
|
|
{ 0x04, "Unsupported message type" },
|
|
{ 0x05, "Unsupported traffic handling mode" },
|
|
{ 0x06, "Unexpected message" },
|
|
{ 0x07, "Protocol error" },
|
|
{ 0x09, "Invalid stream identifier" },
|
|
{ 0x0d, "Refused - management blocking" },
|
|
{ 0x0e, "ASP identifier required" },
|
|
{ 0x0f, "Invalid ASP identifier" },
|
|
{ 0x11, "Invalid parameter value" },
|
|
{ 0x12, "Parameter field error" },
|
|
{ 0x13, "Unexpected parameter" },
|
|
{ 0x14, "Destination status unknown" },
|
|
{ 0x15, "Invalid network appearance" },
|
|
{ 0x16, "Missing parameter" },
|
|
{ 0x19, "Invalid routing context" },
|
|
{ 0x1a, "No configured AS for ASP" },
|
|
{ 0x1b, "Subsystem status unknown" },
|
|
{ 0x1c, "Invalid loadsharing label" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_error_code, parameter_tvb, ERROR_CODE_OFFSET, ERROR_CODE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, ERROR_CODE_OFFSET), error_code_values, "unknown"));
|
|
}
|
|
|
|
#define STATUS_TYPE_LENGTH 2
|
|
#define STATUS_INFO_LENGTH 2
|
|
#define STATUS_TYPE_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define STATUS_INFO_OFFSET (STATUS_TYPE_OFFSET + STATUS_TYPE_LENGTH)
|
|
|
|
#define AS_STATE_CHANGE_TYPE 1
|
|
#define OTHER_TYPE 2
|
|
|
|
static const value_string status_type_values[] = {
|
|
{ AS_STATE_CHANGE_TYPE, "Application server state change" },
|
|
{ OTHER_TYPE, "Other" },
|
|
{ 0, NULL } };
|
|
|
|
#define RESERVED_INFO 1
|
|
#define AS_INACTIVE_INFO 2
|
|
#define AS_ACTIVE_INFO 3
|
|
#define AS_PENDING_INFO 4
|
|
|
|
#define INSUFFICIENT_ASP_RES_INFO 1
|
|
#define ALTERNATE_ASP_ACTIVE_INFO 2
|
|
#define ASP_FAILURE 3
|
|
|
|
static const value_string status_type_info_values[] = {
|
|
{ AS_STATE_CHANGE_TYPE * 256 * 256 + RESERVED_INFO, "Reserved" },
|
|
{ AS_STATE_CHANGE_TYPE * 256 * 256 + AS_INACTIVE_INFO, "Application server inactive" },
|
|
{ AS_STATE_CHANGE_TYPE * 256 * 256 + AS_ACTIVE_INFO, "Application server active" },
|
|
{ AS_STATE_CHANGE_TYPE * 256 * 256 + AS_PENDING_INFO, "Application server pending" },
|
|
{ OTHER_TYPE * 256 * 256 + INSUFFICIENT_ASP_RES_INFO, "Insufficient ASP resources active in AS" },
|
|
{ OTHER_TYPE * 256 * 256 + ALTERNATE_ASP_ACTIVE_INFO, "Alternate ASP active" },
|
|
{ OTHER_TYPE * 256 * 256 + ASP_FAILURE, "ASP Failure" },
|
|
{0, NULL } };
|
|
|
|
static void
|
|
dissect_status_type_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 status_type, status_info;
|
|
|
|
status_type = tvb_get_ntohs(parameter_tvb, STATUS_TYPE_OFFSET);
|
|
status_info = tvb_get_ntohs(parameter_tvb, STATUS_INFO_OFFSET);
|
|
|
|
proto_tree_add_item(parameter_tree, hf_sua_status_type, parameter_tvb, STATUS_TYPE_OFFSET, STATUS_TYPE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_uint_format_value(parameter_tree, hf_sua_status_info, parameter_tvb, STATUS_INFO_OFFSET, STATUS_INFO_LENGTH,
|
|
status_info, "%s (%u)", val_to_str_const(status_type * 256 * 256 + status_info, status_type_info_values, "unknown"), status_info);
|
|
|
|
proto_item_append_text(parameter_item, " (%s)", val_to_str_const(status_type * 256 * 256 + status_info, status_type_info_values, "unknown"));
|
|
}
|
|
|
|
#define ASP_IDENTIFIER_LENGTH 4
|
|
#define ASP_IDENTIFIER_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_asp_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_asp_identifier, parameter_tvb, ASP_IDENTIFIER_OFFSET, ASP_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, ASP_IDENTIFIER_OFFSET));
|
|
}
|
|
|
|
#define AFFECTED_MASK_LENGTH 1
|
|
#define AFFECTED_DPC_LENGTH 3
|
|
#define AFFECTED_DESTINATION_LENGTH (AFFECTED_MASK_LENGTH + AFFECTED_DPC_LENGTH)
|
|
|
|
#define AFFECTED_MASK_OFFSET 0
|
|
#define AFFECTED_DPC_OFFSET 1
|
|
|
|
static void
|
|
dissect_affected_destinations_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 number_of_destinations, destination_number;
|
|
gint destination_offset;
|
|
proto_item *dpc_item;
|
|
|
|
number_of_destinations= (tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH) / 4;
|
|
destination_offset = PARAMETER_VALUE_OFFSET;
|
|
for(destination_number=0; destination_number < number_of_destinations; destination_number++) {
|
|
proto_tree_add_item(parameter_tree, hf_sua_mask, parameter_tvb, destination_offset + AFFECTED_MASK_OFFSET, AFFECTED_MASK_LENGTH, ENC_BIG_ENDIAN);
|
|
dpc_item = proto_tree_add_item(parameter_tree, hf_sua_dpc, parameter_tvb, destination_offset + AFFECTED_DPC_OFFSET, AFFECTED_DPC_LENGTH, ENC_BIG_ENDIAN);
|
|
if (mtp3_pc_structured())
|
|
proto_item_append_text(dpc_item, " (%s)", mtp3_pc_to_str(tvb_get_ntoh24(parameter_tvb, destination_offset + AFFECTED_DPC_OFFSET)));
|
|
destination_offset += AFFECTED_DESTINATION_LENGTH;
|
|
}
|
|
proto_item_append_text(parameter_item, " (%u destination%s)", number_of_destinations, plurality(number_of_destinations, "", "s"));
|
|
}
|
|
|
|
#define CORRELATION_ID_LENGTH 4
|
|
#define CORRELATION_ID_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_correlation_id_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_correlation_id, parameter_tvb, CORRELATION_ID_OFFSET, CORRELATION_ID_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, CORRELATION_ID_OFFSET));
|
|
}
|
|
|
|
static void
|
|
dissect_registration_result_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree)
|
|
{
|
|
tvbuff_t *parameters_tvb;
|
|
|
|
parameters_tvb = tvb_new_subset_remaining(parameter_tvb, PARAMETER_VALUE_OFFSET);
|
|
dissect_parameters(parameters_tvb, pinfo, parameter_tree, NULL, NULL, NULL);
|
|
}
|
|
|
|
static void
|
|
dissect_deregistration_result_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree)
|
|
{
|
|
tvbuff_t *parameters_tvb;
|
|
|
|
parameters_tvb = tvb_new_subset_remaining(parameter_tvb, PARAMETER_VALUE_OFFSET);
|
|
dissect_parameters(parameters_tvb, pinfo, parameter_tree, NULL, NULL, NULL);
|
|
}
|
|
|
|
#define REGISTRATION_STATUS_LENGTH 4
|
|
#define REGISTRATION_STATUS_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static const value_string registration_status_values[] = {
|
|
{ 0, "Successfully registered" },
|
|
{ 1, "Error - unknown" },
|
|
{ 2, "Error - invalid destination address" },
|
|
{ 3, "Error - invalid network appearance" },
|
|
{ 4, "Error - invalid routing key" },
|
|
{ 5, "Error - permission denied" },
|
|
{ 6, "Error - cannot support unique routing" },
|
|
{ 7, "Error - routing key not currently provisioned" },
|
|
{ 8, "Error - insufficient resources" },
|
|
{ 9, "Error - unsupported RK parameter field" },
|
|
{ 10, "Error - unsupported/invalid traffic mode type" },
|
|
{ 11, "Error - routing key change refused" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_registration_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_registration_status, parameter_tvb, REGISTRATION_STATUS_OFFSET, REGISTRATION_STATUS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, REGISTRATION_STATUS_OFFSET), registration_status_values, "unknown"));
|
|
}
|
|
|
|
#define DEREGISTRATION_STATUS_LENGTH 4
|
|
#define DEREGISTRATION_STATUS_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static const value_string deregistration_status_values[] = {
|
|
{ 0, "Successfully deregistered" },
|
|
{ 1, "Error - unknown" },
|
|
{ 2, "Error - invalid routing context" },
|
|
{ 3, "Error - permission denied" },
|
|
{ 4, "Error - not registered" },
|
|
{ 5, "Error - ASP currently active for routing context" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_deregistration_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_deregistration_status, parameter_tvb, DEREGISTRATION_STATUS_OFFSET, DEREGISTRATION_STATUS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, DEREGISTRATION_STATUS_OFFSET), deregistration_status_values, "unknown"));
|
|
}
|
|
|
|
#define LOCAL_ROUTING_KEY_IDENTIFIER_LENGTH 4
|
|
#define LOCAL_ROUTING_KEY_IDENTIFIER_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_local_routing_key_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_local_routing_key_identifier, parameter_tvb, LOCAL_ROUTING_KEY_IDENTIFIER_OFFSET, LOCAL_ROUTING_KEY_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%d)", tvb_get_ntohl(parameter_tvb, LOCAL_ROUTING_KEY_IDENTIFIER_OFFSET));
|
|
}
|
|
|
|
#define SS7_HOP_COUNTER_LENGTH 1
|
|
#define SS7_HOP_COUNTER_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_3_LENGTH)
|
|
|
|
static void
|
|
dissect_ss7_hop_counter_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_ss7_hop_counter_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_3_LENGTH, ENC_NA);
|
|
proto_tree_add_item(parameter_tree, hf_sua_ss7_hop_counter_counter, parameter_tvb, SS7_HOP_COUNTER_OFFSET, SS7_HOP_COUNTER_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_guint8(parameter_tvb, SS7_HOP_COUNTER_OFFSET));
|
|
}
|
|
|
|
#define ROUTING_INDICATOR_LENGTH 2
|
|
#define ADDRESS_INDICATOR_LENGTH 2
|
|
|
|
#define ROUTING_INDICATOR_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define ADDRESS_INDICATOR_OFFSET (ROUTING_INDICATOR_OFFSET + ROUTING_INDICATOR_LENGTH)
|
|
#define ADDRESS_PARAMETERS_OFFSET (ADDRESS_INDICATOR_OFFSET + ADDRESS_INDICATOR_LENGTH)
|
|
|
|
#define RESERVED_ROUTING_INDICATOR 0
|
|
#define ROUTE_ON_GT_ROUTING_INDICATOR 1
|
|
#define ROUTE_ON_SSN_PC_ROUTING_INDICATOR 2
|
|
#define ROUTE_ON_HOSTNAMEROUTING_INDICATOR 3
|
|
#define ROUTE_ON_SSN_IP_ROUTING_INDICATOR 4
|
|
|
|
static const value_string routing_indicator_values[] = {
|
|
{ RESERVED_ROUTING_INDICATOR, "Reserved" },
|
|
{ ROUTE_ON_GT_ROUTING_INDICATOR, "Route on Global Title" },
|
|
{ ROUTE_ON_SSN_PC_ROUTING_INDICATOR, "Route on SSN + PC" },
|
|
{ ROUTE_ON_HOSTNAMEROUTING_INDICATOR, "Route on Hostname" },
|
|
{ ROUTE_ON_SSN_IP_ROUTING_INDICATOR, "Route on SSN + IP Address" },
|
|
{ 0, NULL } };
|
|
|
|
#define ADDRESS_RESERVED_BITMASK 0xfff8
|
|
#define ADDRESS_GT_BITMASK 0x0004
|
|
#define ADDRESS_PC_BITMASK 0x0002
|
|
#define ADDRESS_SSN_BITMASK 0x0001
|
|
|
|
static void
|
|
dissect_source_address_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree, guint8 *ssn)
|
|
{
|
|
proto_tree *address_indicator_tree;
|
|
tvbuff_t *parameters_tvb;
|
|
|
|
sua_ri = tvb_get_ntohs(parameter_tvb, ROUTING_INDICATOR_OFFSET);
|
|
|
|
if(parameter_tree) {
|
|
proto_tree_add_item(parameter_tree, hf_sua_source_address_routing_indicator, parameter_tvb, ROUTING_INDICATOR_OFFSET, ROUTING_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
address_indicator_tree = proto_tree_add_subtree(parameter_tree, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ett_sua_source_address_indicator, NULL, "Address Indicator");
|
|
proto_tree_add_item(address_indicator_tree, hf_sua_source_address_reserved_bits, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(address_indicator_tree, hf_sua_source_address_gt_bit, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(address_indicator_tree, hf_sua_source_address_pc_bit, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(address_indicator_tree, hf_sua_source_address_ssn_bit, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
parameters_tvb = tvb_new_subset_remaining(parameter_tvb, ADDRESS_PARAMETERS_OFFSET);
|
|
dissect_parameters(parameters_tvb, pinfo, parameter_tree, NULL, ssn, NULL);
|
|
}
|
|
|
|
static void
|
|
dissect_destination_address_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree, guint8 *ssn)
|
|
{
|
|
proto_tree *address_indicator_tree;
|
|
tvbuff_t *parameters_tvb;
|
|
|
|
sua_ri = tvb_get_ntohs(parameter_tvb, ROUTING_INDICATOR_OFFSET);
|
|
|
|
if(parameter_tree) {
|
|
proto_tree_add_item(parameter_tree, hf_sua_destination_address_routing_indicator, parameter_tvb, ROUTING_INDICATOR_OFFSET, ROUTING_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
address_indicator_tree = proto_tree_add_subtree(parameter_tree, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ett_sua_destination_address_indicator, NULL, "Address Indicator");
|
|
proto_tree_add_item(address_indicator_tree, hf_sua_destination_address_reserved_bits, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(address_indicator_tree, hf_sua_destination_address_gt_bit, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(address_indicator_tree, hf_sua_destination_address_pc_bit, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(address_indicator_tree, hf_sua_destination_address_ssn_bit, parameter_tvb, ADDRESS_INDICATOR_OFFSET, ADDRESS_INDICATOR_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
parameters_tvb = tvb_new_subset_remaining(parameter_tvb, ADDRESS_PARAMETERS_OFFSET);
|
|
dissect_parameters(parameters_tvb, pinfo, parameter_tree, NULL, NULL, ssn);
|
|
}
|
|
|
|
#define SOURCE_REFERENCE_NUMBER_LENGTH 4
|
|
#define SOURCE_REFERENCE_NUMBER_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_source_reference_number_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
srn = tvb_get_ntohl(parameter_tvb, SOURCE_REFERENCE_NUMBER_OFFSET);
|
|
proto_tree_add_item(parameter_tree, hf_sua_source_reference_number, parameter_tvb, SOURCE_REFERENCE_NUMBER_OFFSET, SOURCE_REFERENCE_NUMBER_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, SOURCE_REFERENCE_NUMBER_OFFSET));
|
|
}
|
|
|
|
#define DESTINATION_REFERENCE_NUMBER_LENGTH 4
|
|
#define DESTINATION_REFERENCE_NUMBER_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_destination_reference_number_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
drn = tvb_get_ntohl(parameter_tvb, DESTINATION_REFERENCE_NUMBER_OFFSET);
|
|
proto_tree_add_item(parameter_tree, hf_sua_destination_reference_number, parameter_tvb, DESTINATION_REFERENCE_NUMBER_OFFSET, DESTINATION_REFERENCE_NUMBER_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, DESTINATION_REFERENCE_NUMBER_OFFSET));
|
|
}
|
|
|
|
#define CAUSE_TYPE_LENGTH 1
|
|
#define CAUSE_VALUE_LENGTH 1
|
|
|
|
#define CAUSE_TYPE_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_2_LENGTH)
|
|
#define CAUSE_VALUE_OFFSET (CAUSE_TYPE_OFFSET + CAUSE_TYPE_LENGTH)
|
|
|
|
#define CAUSE_TYPE_RETURN 0x1
|
|
#define CAUSE_TYPE_REFUSAL 0x2
|
|
#define CAUSE_TYPE_RELEASE 0x3
|
|
#define CAUSE_TYPE_RESET 0x4
|
|
#define CAUSE_TYPE_ERROR 0x5
|
|
static const value_string cause_type_values[] = {
|
|
{ CAUSE_TYPE_RETURN, "Return Cause" },
|
|
{ CAUSE_TYPE_REFUSAL, "Refusal Cause" },
|
|
{ CAUSE_TYPE_RELEASE, "Release Cause" },
|
|
{ CAUSE_TYPE_RESET, "Reset Cause" },
|
|
{ CAUSE_TYPE_ERROR, "Error cause" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_sccp_cause_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint8 cause_type, cause;
|
|
proto_item *pi;
|
|
const gchar *cause_string;
|
|
|
|
proto_tree_add_item(parameter_tree, hf_sua_cause_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_2_LENGTH, ENC_NA);
|
|
proto_tree_add_item(parameter_tree, hf_sua_cause_type, parameter_tvb, CAUSE_TYPE_OFFSET, CAUSE_TYPE_LENGTH, ENC_BIG_ENDIAN);
|
|
cause_type = tvb_get_guint8(parameter_tvb, CAUSE_TYPE_OFFSET);
|
|
pi = proto_tree_add_item(parameter_tree, hf_sua_cause_value, parameter_tvb, CAUSE_VALUE_OFFSET, CAUSE_VALUE_LENGTH, ENC_BIG_ENDIAN);
|
|
cause = tvb_get_guint8(parameter_tvb, CAUSE_VALUE_OFFSET);
|
|
|
|
switch (cause_type) {
|
|
case CAUSE_TYPE_RETURN:
|
|
cause_string = val_to_str_const(cause, sccp_return_cause_values, "unknown");
|
|
break;
|
|
case CAUSE_TYPE_REFUSAL:
|
|
cause_string = val_to_str_const(cause, sccp_refusal_cause_values, "unknown");
|
|
break;
|
|
case CAUSE_TYPE_RELEASE:
|
|
cause_string = val_to_str_const(cause, sccp_release_cause_values, "unknown");
|
|
break;
|
|
case CAUSE_TYPE_RESET:
|
|
cause_string = val_to_str_const(cause, sccp_reset_cause_values, "unknown");
|
|
break;
|
|
case CAUSE_TYPE_ERROR:
|
|
cause_string = val_to_str_const(cause, sccp_error_cause_values, "unknown");
|
|
break;
|
|
default:
|
|
cause_string = "unknown";
|
|
}
|
|
|
|
proto_item_append_text(pi, " (%s)", cause_string);
|
|
proto_item_append_text(parameter_item, " (%s: %s)", val_to_str_const(cause_type, cause_type_values, "unknown"), cause_string);
|
|
}
|
|
|
|
#define SEQUENCE_NUMBER_REC_SEQ_LENGTH 1
|
|
#define SEQUENCE_NUMBER_SENT_SEQ_LENGTH 1
|
|
#define SEQUENCE_NUMBER_REC_SEQ_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_2_LENGTH)
|
|
#define SEQUENCE_NUMBER_SENT_SEQ_OFFSET (SEQUENCE_NUMBER_REC_SEQ_OFFSET + SEQUENCE_NUMBER_REC_SEQ_LENGTH)
|
|
|
|
#define SEQ_NUM_MASK 0xFE
|
|
#define SPARE_BIT_MASK 0x01
|
|
#define MORE_DATA_BIT_MASK 0x01
|
|
|
|
static const true_false_string more_data_bit_value = {
|
|
"More Data",
|
|
"Not More Data"
|
|
};
|
|
|
|
static void
|
|
dissect_sequence_number_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
|
|
{
|
|
proto_tree *sent_sequence_number_tree;
|
|
proto_tree *receive_sequence_number_tree;
|
|
|
|
proto_tree_add_item(parameter_tree, hf_sua_sequence_number_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_2_LENGTH, ENC_NA);
|
|
|
|
receive_sequence_number_tree = proto_tree_add_subtree(parameter_tree, parameter_tvb, SEQUENCE_NUMBER_REC_SEQ_OFFSET, SEQUENCE_NUMBER_REC_SEQ_LENGTH,
|
|
ett_sua_sequence_number_rec_number, NULL, "Receive Sequence Number");
|
|
proto_tree_add_item(receive_sequence_number_tree, hf_sua_sequence_number_rec_number, parameter_tvb, SEQUENCE_NUMBER_REC_SEQ_OFFSET, SEQUENCE_NUMBER_REC_SEQ_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(receive_sequence_number_tree, hf_sua_sequence_number_more_data_bit, parameter_tvb, SEQUENCE_NUMBER_REC_SEQ_OFFSET, SEQUENCE_NUMBER_REC_SEQ_LENGTH, ENC_BIG_ENDIAN);
|
|
|
|
sent_sequence_number_tree = proto_tree_add_subtree(parameter_tree, parameter_tvb, SEQUENCE_NUMBER_SENT_SEQ_OFFSET, SEQUENCE_NUMBER_SENT_SEQ_LENGTH,
|
|
ett_sua_sequence_number_sent_number, NULL, "Sent Sequence Number");
|
|
proto_tree_add_item(sent_sequence_number_tree, hf_sua_sequence_number_sent_number, parameter_tvb, SEQUENCE_NUMBER_SENT_SEQ_OFFSET, SEQUENCE_NUMBER_SENT_SEQ_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(sent_sequence_number_tree, hf_sua_sequence_number_spare_bit, parameter_tvb, SEQUENCE_NUMBER_SENT_SEQ_OFFSET, SEQUENCE_NUMBER_SENT_SEQ_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
#define RECEIVE_SEQUENCE_NUMBER_REC_SEQ_LENGTH 1
|
|
#define RECEIVE_SEQUENCE_NUMBER_REC_SEQ_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_3_LENGTH)
|
|
|
|
static void
|
|
dissect_receive_sequence_number_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
|
|
{
|
|
proto_tree *receive_sequence_number_tree;
|
|
|
|
proto_tree_add_item(parameter_tree, hf_sua_receive_sequence_number_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_3_LENGTH, ENC_NA);
|
|
receive_sequence_number_tree = proto_tree_add_subtree(parameter_tree, parameter_tvb, RECEIVE_SEQUENCE_NUMBER_REC_SEQ_OFFSET, RECEIVE_SEQUENCE_NUMBER_REC_SEQ_LENGTH,
|
|
ett_sua_receive_sequence_number_number, NULL, "Receive Sequence Number");
|
|
proto_tree_add_item(receive_sequence_number_tree, hf_sua_receive_sequence_number_number, parameter_tvb, RECEIVE_SEQUENCE_NUMBER_REC_SEQ_OFFSET, RECEIVE_SEQUENCE_NUMBER_REC_SEQ_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(receive_sequence_number_tree, hf_sua_receive_sequence_number_spare_bit, parameter_tvb, RECEIVE_SEQUENCE_NUMBER_REC_SEQ_OFFSET, RECEIVE_SEQUENCE_NUMBER_REC_SEQ_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
#define PROTOCOL_CLASSES_LENGTH 1
|
|
#define INTERWORKING_LENGTH 1
|
|
#define PROTOCOL_CLASSES_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_2_LENGTH)
|
|
#define INTERWORKING_OFFSET (PROTOCOL_CLASSES_OFFSET + PROTOCOL_CLASSES_LENGTH)
|
|
|
|
#define A_BIT_MASK 0x08
|
|
#define B_BIT_MASK 0x04
|
|
#define C_BIT_MASK 0x02
|
|
#define D_BIT_MASK 0x01
|
|
#define RESERVED_BITS_MASK 0xF0
|
|
|
|
static const value_string interworking_values[] = {
|
|
{ 0x0, "No Interworking with SS7 Networks" },
|
|
{ 0x1, "IP-Signalling Endpoint interworking with SS7 networks" },
|
|
{ 0x2, "Signalling Gateway" },
|
|
{ 0x3, "Relay Node Support" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_asp_capabilities_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
|
|
{
|
|
static int * const capabilities[] = {
|
|
&hf_sua_asp_capabilities_reserved_bits,
|
|
&hf_sua_asp_capabilities_a_bit,
|
|
&hf_sua_asp_capabilities_b_bit,
|
|
&hf_sua_asp_capabilities_c_bit,
|
|
&hf_sua_asp_capabilities_d_bit,
|
|
NULL
|
|
};
|
|
|
|
proto_tree_add_item(parameter_tree, hf_sua_asp_capabilities_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_2_LENGTH, ENC_NA);
|
|
proto_tree_add_bitmask(parameter_tree, parameter_tvb, PROTOCOL_CLASSES_OFFSET, hf_sua_protocol_classes, ett_sua_protocol_classes, capabilities, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_asp_capabilities_interworking, parameter_tvb, INTERWORKING_OFFSET, INTERWORKING_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
#define CREDIT_LENGTH 4
|
|
#define CREDIT_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_credit_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_credit, parameter_tvb, CREDIT_OFFSET, CREDIT_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, CREDIT_OFFSET));
|
|
}
|
|
|
|
#define DATA_PARAMETER_DATA_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_data_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item, tvbuff_t **data_tvb)
|
|
{
|
|
guint16 data_length;
|
|
|
|
data_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
|
|
|
|
if(parameter_tree) {
|
|
proto_tree_add_item(parameter_tree, hf_sua_data, parameter_tvb, DATA_PARAMETER_DATA_OFFSET, data_length, ENC_NA);
|
|
proto_item_append_text(parameter_item, " (SS7 message of %u byte%s)", data_length, plurality(data_length, "", "s"));
|
|
}
|
|
|
|
if(data_tvb)
|
|
{
|
|
*data_tvb = tvb_new_subset_length(parameter_tvb, PARAMETER_VALUE_OFFSET, data_length);
|
|
}
|
|
}
|
|
|
|
|
|
#define CAUSE_LENGTH 2
|
|
#define USER_LENGTH 2
|
|
#define CAUSE_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define USER_OFFSET (CAUSE_OFFSET + CAUSE_LENGTH)
|
|
|
|
static const value_string cause_values[] = {
|
|
{ 0x0, "Remote SCCP unavailable, Reason unknown" },
|
|
{ 0x2, "Remote SCCP unequipped" },
|
|
{ 0x3, "Remote SCCP inaccessible" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_user_cause_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_cause, parameter_tvb, CAUSE_OFFSET, CAUSE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_user, parameter_tvb, USER_OFFSET, USER_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
#define NETWORK_APPEARANCE_LENGTH 4
|
|
#define NETWORK_APPEARANCE_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_network_appearance_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_network_appearance, parameter_tvb, NETWORK_APPEARANCE_OFFSET, NETWORK_APPEARANCE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, NETWORK_APPEARANCE_OFFSET));
|
|
}
|
|
|
|
static void
|
|
dissect_routing_key_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree)
|
|
{
|
|
tvbuff_t *parameters_tvb;
|
|
|
|
parameters_tvb = tvb_new_subset_remaining(parameter_tvb, PARAMETER_VALUE_OFFSET);
|
|
dissect_parameters(parameters_tvb, pinfo, parameter_tree, NULL, NULL, NULL);
|
|
}
|
|
#define DRN_START_LENGTH 1
|
|
#define DRN_END_LENGTH 1
|
|
#define DRN_VALUE_LENGTH 2
|
|
|
|
#define DRN_START_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define DRN_END_OFFSET (DRN_START_OFFSET + DRN_START_LENGTH)
|
|
#define DRN_VALUE_OFFSET (DRN_END_OFFSET + DRN_END_LENGTH)
|
|
|
|
static void
|
|
dissect_drn_label_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_drn_label_start, parameter_tvb, DRN_START_OFFSET, DRN_START_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_drn_label_end, parameter_tvb, DRN_END_OFFSET, DRN_END_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_drn_label_value, parameter_tvb, DRN_VALUE_OFFSET, DRN_VALUE_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
#define TID_START_LENGTH 1
|
|
#define TID_END_LENGTH 1
|
|
#define TID_VALUE_LENGTH 2
|
|
|
|
#define TID_START_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define TID_END_OFFSET (TID_START_OFFSET + TID_START_LENGTH)
|
|
#define TID_VALUE_OFFSET (TID_END_OFFSET + TID_END_LENGTH)
|
|
|
|
static void
|
|
dissect_tid_label_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_tid_label_start, parameter_tvb, TID_START_OFFSET, TID_START_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_tid_label_end, parameter_tvb, TID_END_OFFSET, TID_END_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_tid_label_value, parameter_tvb, TID_VALUE_OFFSET, TID_VALUE_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
#define ADDRESS_RANGE_ADDRESS_PARAMETERS_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_address_range_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *parameter_tree)
|
|
{
|
|
tvbuff_t *parameters_tvb;
|
|
|
|
parameters_tvb = tvb_new_subset_remaining(parameter_tvb, PARAMETER_VALUE_OFFSET);
|
|
dissect_parameters(parameters_tvb, pinfo, parameter_tree, NULL, NULL, NULL);
|
|
}
|
|
|
|
#define SMI_LENGTH 1
|
|
#define SMI_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_3_LENGTH)
|
|
|
|
static void
|
|
dissect_smi_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_smi_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_3_LENGTH, ENC_NA);
|
|
proto_tree_add_item(parameter_tree, hf_sua_smi, parameter_tvb, SMI_OFFSET, SMI_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_guint8(parameter_tvb, SMI_OFFSET));
|
|
}
|
|
|
|
#define IMPORTANCE_LENGTH 1
|
|
#define IMPORTANCE_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_3_LENGTH)
|
|
|
|
static void
|
|
dissect_importance_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_importance_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_3_LENGTH, ENC_NA);
|
|
proto_tree_add_item(parameter_tree, hf_sua_importance, parameter_tvb, IMPORTANCE_OFFSET, IMPORTANCE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_guint8(parameter_tvb, IMPORTANCE_OFFSET));
|
|
}
|
|
|
|
#define MESSAGE_PRIORITY_LENGTH 1
|
|
#define MESSAGE_PRIORITY_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_3_LENGTH)
|
|
|
|
static void
|
|
dissect_message_priority_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_message_priority_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_3_LENGTH, ENC_NA);
|
|
proto_tree_add_item(parameter_tree, hf_sua_message_priority, parameter_tvb, MESSAGE_PRIORITY_OFFSET, MESSAGE_PRIORITY_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_guint8(parameter_tvb, MESSAGE_PRIORITY_OFFSET));
|
|
}
|
|
|
|
#define PROTOCOL_CLASS_LENGTH 1
|
|
#define PROTOCOL_CLASS_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_3_LENGTH)
|
|
|
|
#define RETURN_ON_ERROR_BIT_MASK 0x80
|
|
#define PROTOCOL_CLASS_MASK 0x7f
|
|
|
|
|
|
static const true_false_string return_on_error_bit_value = {
|
|
"Return Message On Error",
|
|
"No Special Options"
|
|
};
|
|
|
|
static void
|
|
dissect_protocol_class_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
static int * const capabilities[] = {
|
|
&hf_sua_return_on_error_bit,
|
|
&hf_sua_protocol_class,
|
|
NULL
|
|
};
|
|
|
|
proto_tree_add_item(parameter_tree, hf_sua_protocol_class_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_3_LENGTH, ENC_NA);
|
|
proto_tree_add_bitmask(parameter_tree, parameter_tvb, PROTOCOL_CLASS_OFFSET, hf_sua_protocol_class_flags, ett_sua_return_on_error_bit_and_protocol_class, capabilities, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%d)", tvb_get_guint8(parameter_tvb, PROTOCOL_CLASS_OFFSET) & PROTOCOL_CLASS_MASK);
|
|
}
|
|
|
|
#define SEQUENCE_CONTROL_LENGTH 4
|
|
#define SEQUENCE_CONTROL_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_sequence_control_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_sequence_control, parameter_tvb, SEQUENCE_CONTROL_OFFSET, SEQUENCE_CONTROL_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, SEQUENCE_CONTROL_OFFSET));
|
|
}
|
|
|
|
#define FIRST_REMAINING_LENGTH 1
|
|
#define SEGMENTATION_REFERENCE_LENGTH 3
|
|
#define FIRST_REMAINING_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define SEGMENTATION_REFERENCE_OFFSET (FIRST_REMAINING_OFFSET + FIRST_REMAINING_LENGTH)
|
|
|
|
#define FIRST_BIT_MASK 0x80
|
|
#define NUMBER_OF_SEGMENTS_MASK 0x7f
|
|
|
|
static const true_false_string first_bit_value = {
|
|
"First segment",
|
|
"Subsequent segment"
|
|
};
|
|
|
|
static void
|
|
dissect_segmentation_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
|
|
{
|
|
static int * const first_remaining[] = {
|
|
&hf_sua_first_bit,
|
|
&hf_sua_number_of_remaining_segments,
|
|
NULL
|
|
};
|
|
|
|
proto_tree_add_bitmask(parameter_tree, parameter_tvb, FIRST_REMAINING_OFFSET, hf_sua_first_remaining, ett_sua_first_remaining, first_remaining, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_segmentation_reference, parameter_tvb, SEGMENTATION_REFERENCE_OFFSET, SEGMENTATION_REFERENCE_LENGTH, ENC_BIG_ENDIAN);
|
|
}
|
|
|
|
#define CONGESTION_LEVEL_LENGTH 4
|
|
#define CONGESTION_LEVEL_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_congestion_level_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sua_congestion_level, parameter_tvb, CONGESTION_LEVEL_OFFSET, CONGESTION_LEVEL_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", tvb_get_ntohl(parameter_tvb, CONGESTION_LEVEL_OFFSET));
|
|
}
|
|
|
|
#define GTI_LENGTH 1
|
|
#define NO_OF_DIGITS_LENGTH 1
|
|
#define TRANSLATION_TYPE_LENGTH 1
|
|
#define NUMBERING_PLAN_LENGTH 1
|
|
#define NATURE_OF_ADDRESS_LENGTH 1
|
|
|
|
#define GTI_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_3_LENGTH)
|
|
#define NO_OF_DIGITS_OFFSET (GTI_OFFSET + GTI_LENGTH)
|
|
#define TRANSLATION_TYPE_OFFSET (NO_OF_DIGITS_OFFSET + NO_OF_DIGITS_LENGTH)
|
|
#define NUMBERING_PLAN_OFFSET (TRANSLATION_TYPE_OFFSET + TRANSLATION_TYPE_LENGTH)
|
|
#define NATURE_OF_ADDRESS_OFFSET (NUMBERING_PLAN_OFFSET + NUMBERING_PLAN_LENGTH)
|
|
#define GLOBAL_TITLE_OFFSET (NATURE_OF_ADDRESS_OFFSET + NATURE_OF_ADDRESS_LENGTH)
|
|
|
|
#define ISDN_TELEPHONY_NUMBERING_PLAN 1
|
|
#define GENERIC_NUMBERING_PLAN 2
|
|
#define DATA_NUMBERING_PLAN 3
|
|
#define TELEX_NUMBERING_PLAN 4
|
|
#define MARITIME_MOBILE_NUMBERING_PLAN 5
|
|
#define LAND_MOBILE_NUMBERING_PLAN 6
|
|
#define ISDN_MOBILE_NUMBERING_PLAN 7
|
|
#define PRIVATE_NETWORK_NUMBERING_PLAN 14
|
|
|
|
static const value_string numbering_plan_values[] = {
|
|
{ ISDN_TELEPHONY_NUMBERING_PLAN, "ISDN/Telephony Numbering Plan (Rec. E.161 and E.164)" },
|
|
{ GENERIC_NUMBERING_PLAN, "Generic Numbering Plan" },
|
|
{ DATA_NUMBERING_PLAN, "Data Numbering Plan (Rec. X.121)" },
|
|
{ TELEX_NUMBERING_PLAN, "Telex Numbering Plan (Rec. F.69)" },
|
|
{ MARITIME_MOBILE_NUMBERING_PLAN, "Maritime Mobile Numbering Plan (Rec. E.210 and E.211)" },
|
|
{ LAND_MOBILE_NUMBERING_PLAN, "Land Mobile Numbering Plan (Rec. E.212)" },
|
|
{ ISDN_MOBILE_NUMBERING_PLAN, "ISDN/Mobile Numbering Plan (Rec. E.214)" },
|
|
{ PRIVATE_NETWORK_NUMBERING_PLAN, "Private Network Or Network-Specific Numbering Plan" },
|
|
{ 0, NULL } };
|
|
|
|
#define UNKNOWN_NATURE_OF_ADDRESS 0
|
|
#define SUBSCRIBER_NUMBER_NATURE_OF_ADDRESS 1
|
|
#define RESERVED_FOR_NATIONAL_USE_NATURE_OF_ADDRESS 2
|
|
#define NATIONAL_SIGNIFICANT_NUMBER_NATURE_OF_ADDRESS 3
|
|
#define INTERNATION_NUMBER_NATURE_OF_ADDRESS 4
|
|
|
|
static const value_string nature_of_address_values[] = {
|
|
{ UNKNOWN_NATURE_OF_ADDRESS, "Unknown" },
|
|
{ SUBSCRIBER_NUMBER_NATURE_OF_ADDRESS, "Subscriber Number" },
|
|
{ RESERVED_FOR_NATIONAL_USE_NATURE_OF_ADDRESS, "Reserved For National Use" },
|
|
{ NATIONAL_SIGNIFICANT_NUMBER_NATURE_OF_ADDRESS, "National Significant Number" },
|
|
{ INTERNATION_NUMBER_NATURE_OF_ADDRESS, "International Number" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_global_title_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, gboolean source)
|
|
{
|
|
guint16 global_title_length;
|
|
guint16 offset;
|
|
gboolean even_length;
|
|
guint8 odd_signal, even_signal;
|
|
guint8 number_of_digits;
|
|
char *gt_digits;
|
|
|
|
gt_digits = (char *)wmem_alloc0(wmem_packet_scope(), GT_MAX_SIGNALS+1);
|
|
|
|
global_title_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) -
|
|
(PARAMETER_HEADER_LENGTH + RESERVED_3_LENGTH + GTI_LENGTH + NO_OF_DIGITS_LENGTH + TRANSLATION_TYPE_LENGTH + NUMBERING_PLAN_LENGTH + NATURE_OF_ADDRESS_LENGTH);
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_gt_reserved : hf_sua_dest_gt_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_3_LENGTH, ENC_NA);
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_gti : hf_sua_dest_gti, parameter_tvb, GTI_OFFSET, GTI_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_number_of_digits : hf_sua_dest_number_of_digits, parameter_tvb, NO_OF_DIGITS_OFFSET, NO_OF_DIGITS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_translation_type : hf_sua_dest_translation_type, parameter_tvb, TRANSLATION_TYPE_OFFSET, TRANSLATION_TYPE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_numbering_plan : hf_sua_dest_numbering_plan, parameter_tvb, NUMBERING_PLAN_OFFSET, NUMBERING_PLAN_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_nature_of_address : hf_sua_dest_nature_of_address, parameter_tvb, NATURE_OF_ADDRESS_OFFSET, NATURE_OF_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
|
|
|
|
number_of_digits = tvb_get_guint8(parameter_tvb, NO_OF_DIGITS_OFFSET);
|
|
even_length = !(number_of_digits % 2);
|
|
offset = GLOBAL_TITLE_OFFSET;
|
|
|
|
while(offset < GLOBAL_TITLE_OFFSET + global_title_length) {
|
|
odd_signal = tvb_get_guint8(parameter_tvb, offset) & GT_ODD_SIGNAL_MASK;
|
|
even_signal = tvb_get_guint8(parameter_tvb, offset) & GT_EVEN_SIGNAL_MASK;
|
|
even_signal >>= GT_EVEN_SIGNAL_SHIFT;
|
|
|
|
(void) g_strlcat(gt_digits, val_to_str_const(odd_signal, sccp_address_signal_values,
|
|
"Unknown"), GT_MAX_SIGNALS+1);
|
|
|
|
/* If the last signal is NOT filler */
|
|
if (offset != (GLOBAL_TITLE_OFFSET + global_title_length - 1) || even_length == TRUE)
|
|
(void) g_strlcat(gt_digits, val_to_str_const(even_signal, sccp_address_signal_values,
|
|
"Unknown"), GT_MAX_SIGNALS+1);
|
|
|
|
offset += GT_SIGNAL_LENGTH;
|
|
}
|
|
|
|
proto_tree_add_string_format(parameter_tree, source ? hf_sua_source_global_title_digits : hf_sua_dest_global_title_digits,
|
|
parameter_tvb, GLOBAL_TITLE_OFFSET,
|
|
global_title_length, gt_digits,
|
|
"Address information (digits): %s", gt_digits);
|
|
|
|
if (sua_ri == ROUTE_ON_GT_ROUTING_INDICATOR) {
|
|
if (source) {
|
|
sua_source_gt = gt_digits;
|
|
} else {
|
|
sua_destination_gt = gt_digits;
|
|
}
|
|
}
|
|
}
|
|
|
|
#define POINT_CODE_LENGTH 4
|
|
#define POINT_CODE_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_point_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item, gboolean source)
|
|
{
|
|
guint32 pc;
|
|
|
|
pc = tvb_get_ntohl(parameter_tvb, POINT_CODE_OFFSET);
|
|
|
|
if (sua_ri == ROUTE_ON_SSN_PC_ROUTING_INDICATOR) {
|
|
if (source) {
|
|
sua_opc->type = (Standard_Type)mtp3_standard;
|
|
sua_opc->pc = pc;
|
|
} else {
|
|
sua_dpc->type = (Standard_Type)mtp3_standard;
|
|
sua_dpc->pc = pc;
|
|
}
|
|
}
|
|
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_point_code : hf_sua_dest_point_code, parameter_tvb, POINT_CODE_OFFSET, POINT_CODE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)", mtp3_pc_to_str(pc));
|
|
}
|
|
|
|
#define SSN_LENGTH 1
|
|
#define SSN_OFFSET (PARAMETER_VALUE_OFFSET + RESERVED_3_LENGTH)
|
|
#define INVALID_SSN 0xff
|
|
|
|
static void
|
|
dissect_ssn_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item, guint8 *ssn, gboolean source)
|
|
{
|
|
*ssn = tvb_get_guint8(parameter_tvb, SSN_OFFSET);
|
|
|
|
if(parameter_tree) {
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_ssn_reserved : hf_sua_dest_ssn_reserved, parameter_tvb, PARAMETER_VALUE_OFFSET, RESERVED_3_LENGTH, ENC_NA);
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_ssn_number : hf_sua_dest_ssn_number, parameter_tvb, SSN_OFFSET, SSN_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%u)", *ssn);
|
|
}
|
|
}
|
|
|
|
#define IPV4_ADDRESS_LENGTH 4
|
|
#define IPV4_ADDRESS_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_ipv4_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item, gboolean source)
|
|
{
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_ipv4 : hf_sua_dest_ipv4, parameter_tvb, IPV4_ADDRESS_OFFSET, IPV4_ADDRESS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)", tvb_ip_to_str(wmem_packet_scope(), parameter_tvb, IPV4_ADDRESS_OFFSET));
|
|
}
|
|
|
|
#define HOSTNAME_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_hostname_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item, gboolean source)
|
|
{
|
|
guint16 hostname_length;
|
|
|
|
hostname_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_hostname : hf_sua_dest_hostname, parameter_tvb, HOSTNAME_OFFSET, hostname_length, ENC_ASCII);
|
|
proto_item_append_text(parameter_item, " (%s)",
|
|
tvb_format_text(wmem_packet_scope(), parameter_tvb, HOSTNAME_OFFSET, hostname_length));
|
|
}
|
|
|
|
#define IPV6_ADDRESS_LENGTH 16
|
|
#define IPV6_ADDRESS_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_ipv6_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item, gboolean source)
|
|
{
|
|
proto_tree_add_item(parameter_tree, source ? hf_sua_source_ipv6 : hf_sua_dest_ipv6, parameter_tvb, IPV6_ADDRESS_OFFSET, IPV6_ADDRESS_LENGTH, ENC_NA);
|
|
proto_item_append_text(parameter_item, " (%s)", tvb_ip6_to_str(wmem_packet_scope(), parameter_tvb, IPV6_ADDRESS_OFFSET));
|
|
}
|
|
|
|
static void
|
|
dissect_unknown_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 parameter_value_length;
|
|
|
|
parameter_value_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
|
|
proto_tree_add_item(parameter_tree, hf_sua_parameter_value, parameter_tvb, PARAMETER_VALUE_OFFSET, parameter_value_length, ENC_NA);
|
|
proto_item_append_text(parameter_item, "(tag %u and %u byte%s value)", tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET), parameter_value_length, plurality(parameter_value_length, "", "s"));
|
|
}
|
|
|
|
#define V8_DATA_PARAMETER_TAG 0x0003
|
|
#define V8_INFO_STRING_PARAMETER_TAG 0x0004
|
|
#define V8_ROUTING_CONTEXT_PARAMETER_TAG 0x0006
|
|
#define V8_DIAGNOSTIC_INFO_PARAMETER_TAG 0x0007
|
|
#define V8_HEARTBEAT_DATA_PARAMETER_TAG 0x0009
|
|
#define V8_TRAFFIC_MODE_TYPE_PARAMETER_TAG 0x000b
|
|
#define V8_ERROR_CODE_PARAMETER_TAG 0x000c
|
|
#define V8_STATUS_PARAMETER_TAG 0x000d
|
|
#define V8_CONGESTION_LEVEL_PARAMETER_TAG 0x000f
|
|
#define V8_ASP_IDENTIFIER_PARAMETER_TAG 0x0011
|
|
#define V8_AFFECTED_POINT_CODE_PARAMETER_TAG 0x0012
|
|
|
|
#define V8_SS7_HOP_COUNTER_PARAMETER_TAG 0x0101
|
|
#define V8_SOURCE_ADDRESS_PARAMETER_TAG 0x0102
|
|
#define V8_DESTINATION_ADDRESS_PARAMETER_TAG 0x0103
|
|
#define V8_SOURCE_REFERENCE_NUMBER_PARAMETER_TAG 0x0104
|
|
#define V8_DESTINATION_REFERENCE_NUMBER_PARAMETER_TAG 0x0105
|
|
#define V8_SCCP_CAUSE_PARAMETER_TAG 0x0106
|
|
#define V8_SEQUENCE_NUMBER_PARAMETER_TAG 0x0107
|
|
#define V8_RECEIVE_SEQUENCE_NUMBER_PARAMETER_TAG 0x0108
|
|
#define V8_ASP_CAPABILITIES_PARAMETER_TAG 0x0109
|
|
#define V8_CREDIT_PARAMETER_TAG 0x010a
|
|
#define V8_USER_CAUSE_PARAMETER_TAG 0x010c
|
|
#define V8_NETWORK_APPEARANCE_PARAMETER_TAG 0x010d
|
|
#define V8_ROUTING_KEY_PARAMETER_TAG 0x010e
|
|
#define V8_REGISTRATION_RESULT_PARAMETER_TAG 0x010f
|
|
#define V8_DEREGISTRATION_RESULT_PARAMETER_TAG 0x0110
|
|
#define V8_ADDRESS_RANGE_PARAMETER_TAG 0x0111
|
|
#define V8_CORRELATION_ID_PARAMETER_TAG 0x0112
|
|
#define V8_IMPORTANCE_PARAMETER_TAG 0x0113
|
|
#define V8_MESSAGE_PRIORITY_PARAMETER_TAG 0x0114
|
|
#define V8_PROTOCOL_CLASS_PARAMETER_TAG 0x0115
|
|
#define V8_SEQUENCE_CONTROL_PARAMETER_TAG 0x0116
|
|
#define V8_SEGMENTATION_PARAMETER_TAG 0x0117
|
|
#define V8_SMI_PARAMETER_TAG 0x0118
|
|
#define V8_TID_LABEL_PARAMETER_TAG 0x0119
|
|
#define V8_DRN_LABEL_PARAMETER_TAG 0x011a
|
|
|
|
#define V8_GLOBAL_TITLE_PARAMETER_TAG 0x8001
|
|
#define V8_POINT_CODE_PARAMETER_TAG 0x8002
|
|
#define V8_SUBSYSTEM_NUMBER_PARAMETER_TAG 0x8003
|
|
#define V8_IPV4_ADDRESS_PARAMETER_TAG 0x8004
|
|
#define V8_HOSTNAME_PARAMETER_TAG 0x8005
|
|
#define V8_IPV6_ADDRESS_PARAMETER_TAG 0x8006
|
|
|
|
static const value_string v8_parameter_tag_values[] = {
|
|
{ V8_DATA_PARAMETER_TAG, "Data" },
|
|
{ V8_INFO_STRING_PARAMETER_TAG, "Info String" },
|
|
{ V8_ROUTING_CONTEXT_PARAMETER_TAG, "Routing context" },
|
|
{ V8_DIAGNOSTIC_INFO_PARAMETER_TAG, "Diagnostic info" },
|
|
{ V8_HEARTBEAT_DATA_PARAMETER_TAG, "Heartbeat data" },
|
|
{ V8_TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" },
|
|
{ V8_ERROR_CODE_PARAMETER_TAG, "Error code" },
|
|
{ V8_STATUS_PARAMETER_TAG, "Status" },
|
|
{ V8_CONGESTION_LEVEL_PARAMETER_TAG, "Congestion level" },
|
|
{ V8_ASP_IDENTIFIER_PARAMETER_TAG, "ASP identifier" },
|
|
{ V8_AFFECTED_POINT_CODE_PARAMETER_TAG, "Affected point code" },
|
|
{ V8_SS7_HOP_COUNTER_PARAMETER_TAG, "SS7 hop counter" },
|
|
{ V8_SOURCE_ADDRESS_PARAMETER_TAG, "Source address" },
|
|
{ V8_DESTINATION_ADDRESS_PARAMETER_TAG, "Destination address" },
|
|
{ V8_SOURCE_REFERENCE_NUMBER_PARAMETER_TAG, "Source reference number" },
|
|
{ V8_DESTINATION_REFERENCE_NUMBER_PARAMETER_TAG, "Destination reference number" },
|
|
{ V8_SCCP_CAUSE_PARAMETER_TAG, "SCCP cause" },
|
|
{ V8_SEQUENCE_NUMBER_PARAMETER_TAG, "Sequence number" },
|
|
{ V8_RECEIVE_SEQUENCE_NUMBER_PARAMETER_TAG, "Receive sequence number" },
|
|
{ V8_ASP_CAPABILITIES_PARAMETER_TAG, "ASP capabilities" },
|
|
{ V8_CREDIT_PARAMETER_TAG, "Credit" },
|
|
{ V8_USER_CAUSE_PARAMETER_TAG, "User/Cause" },
|
|
{ V8_NETWORK_APPEARANCE_PARAMETER_TAG, "Network appearance" },
|
|
{ V8_ROUTING_KEY_PARAMETER_TAG, "Routing key" },
|
|
{ V8_REGISTRATION_RESULT_PARAMETER_TAG, "Registration result" },
|
|
{ V8_DEREGISTRATION_RESULT_PARAMETER_TAG, "Deregistration result" },
|
|
{ V8_ADDRESS_RANGE_PARAMETER_TAG, "Address range" },
|
|
{ V8_CORRELATION_ID_PARAMETER_TAG, "Correlation ID" },
|
|
{ V8_IMPORTANCE_PARAMETER_TAG, "Importance" },
|
|
{ V8_MESSAGE_PRIORITY_PARAMETER_TAG, "Message priority" },
|
|
{ V8_PROTOCOL_CLASS_PARAMETER_TAG, "Protocol class" },
|
|
{ V8_SEQUENCE_CONTROL_PARAMETER_TAG, "Sequence control" },
|
|
{ V8_SEGMENTATION_PARAMETER_TAG, "Segmentation" },
|
|
{ V8_SMI_PARAMETER_TAG, "SMI" },
|
|
{ V8_TID_LABEL_PARAMETER_TAG, "TID label" },
|
|
{ V8_DRN_LABEL_PARAMETER_TAG, "DRN label" },
|
|
{ V8_GLOBAL_TITLE_PARAMETER_TAG, "Global title" },
|
|
{ V8_POINT_CODE_PARAMETER_TAG, "Point code" },
|
|
{ V8_SUBSYSTEM_NUMBER_PARAMETER_TAG, "Subsystem number" },
|
|
{ V8_IPV4_ADDRESS_PARAMETER_TAG, "IPv4 address" },
|
|
{ V8_HOSTNAME_PARAMETER_TAG, "Hostname" },
|
|
{ V8_IPV6_ADDRESS_PARAMETER_TAG, "IPv6 address" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_v8_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, tvbuff_t **data_tvb, guint8 *source_ssn, guint8 *dest_ssn)
|
|
{
|
|
guint16 tag, length, padding_length;
|
|
proto_item *parameter_item;
|
|
proto_tree *parameter_tree;
|
|
guint8 ssn = INVALID_SSN;
|
|
|
|
/* extract tag and length from the parameter */
|
|
tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET);
|
|
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
|
|
padding_length = tvb_reported_length(parameter_tvb) - length;
|
|
|
|
/* create proto_tree stuff */
|
|
parameter_tree = proto_tree_add_subtree(tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1, ett_sua_parameter, ¶meter_item, val_to_str_const(tag, v8_parameter_tag_values, "Unknown parameter"));
|
|
|
|
/* add tag and length to the sua tree */
|
|
proto_tree_add_item(parameter_tree, hf_sua_v8_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, ENC_BIG_ENDIAN);
|
|
|
|
/*
|
|
** If no tree, only the data and ssn parameters in the source and destination
|
|
** address need to be dissected. This in order to make dissection of the data
|
|
** possible when there is no tree.
|
|
*/
|
|
if (!tree && tag != V8_DATA_PARAMETER_TAG
|
|
&& tag != V8_SOURCE_ADDRESS_PARAMETER_TAG
|
|
&& tag != V8_DESTINATION_ADDRESS_PARAMETER_TAG
|
|
&& tag != V8_DESTINATION_REFERENCE_NUMBER_PARAMETER_TAG
|
|
&& tag != V8_SOURCE_REFERENCE_NUMBER_PARAMETER_TAG
|
|
&& tag != V8_SUBSYSTEM_NUMBER_PARAMETER_TAG)
|
|
return;
|
|
|
|
switch(tag) {
|
|
case V8_DATA_PARAMETER_TAG:
|
|
dissect_data_parameter(parameter_tvb, parameter_tree, parameter_item, data_tvb);
|
|
break;
|
|
case V8_INFO_STRING_PARAMETER_TAG:
|
|
dissect_info_string_parameter(parameter_tvb, pinfo, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_ROUTING_CONTEXT_PARAMETER_TAG:
|
|
dissect_routing_context_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_DIAGNOSTIC_INFO_PARAMETER_TAG:
|
|
dissect_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_HEARTBEAT_DATA_PARAMETER_TAG:
|
|
dissect_heartbeat_data_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_TRAFFIC_MODE_TYPE_PARAMETER_TAG:
|
|
dissect_traffic_mode_type_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_ERROR_CODE_PARAMETER_TAG:
|
|
dissect_v8_error_code_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_STATUS_PARAMETER_TAG:
|
|
dissect_status_type_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_CONGESTION_LEVEL_PARAMETER_TAG:
|
|
dissect_congestion_level_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_ASP_IDENTIFIER_PARAMETER_TAG:
|
|
dissect_asp_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_AFFECTED_POINT_CODE_PARAMETER_TAG:
|
|
dissect_affected_destinations_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_SS7_HOP_COUNTER_PARAMETER_TAG:
|
|
dissect_ss7_hop_counter_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_SOURCE_ADDRESS_PARAMETER_TAG:
|
|
dissect_source_address_parameter(parameter_tvb, pinfo, parameter_tree, source_ssn);
|
|
break;
|
|
case V8_DESTINATION_ADDRESS_PARAMETER_TAG:
|
|
dissect_destination_address_parameter(parameter_tvb, pinfo, parameter_tree, dest_ssn);
|
|
break;
|
|
case V8_SOURCE_REFERENCE_NUMBER_PARAMETER_TAG:
|
|
dissect_source_reference_number_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_DESTINATION_REFERENCE_NUMBER_PARAMETER_TAG:
|
|
dissect_destination_reference_number_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_SCCP_CAUSE_PARAMETER_TAG:
|
|
dissect_sccp_cause_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_SEQUENCE_NUMBER_PARAMETER_TAG:
|
|
dissect_sequence_number_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case V8_RECEIVE_SEQUENCE_NUMBER_PARAMETER_TAG:
|
|
dissect_receive_sequence_number_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case V8_ASP_CAPABILITIES_PARAMETER_TAG:
|
|
dissect_asp_capabilities_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case V8_CREDIT_PARAMETER_TAG:
|
|
dissect_credit_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_USER_CAUSE_PARAMETER_TAG:
|
|
dissect_user_cause_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case V8_NETWORK_APPEARANCE_PARAMETER_TAG:
|
|
dissect_network_appearance_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_ROUTING_KEY_PARAMETER_TAG:
|
|
dissect_routing_key_parameter(parameter_tvb, pinfo, parameter_tree);
|
|
break;
|
|
case V8_REGISTRATION_RESULT_PARAMETER_TAG:
|
|
dissect_registration_result_parameter(parameter_tvb, pinfo, parameter_tree);
|
|
break;
|
|
case V8_DEREGISTRATION_RESULT_PARAMETER_TAG:
|
|
dissect_deregistration_result_parameter(parameter_tvb, pinfo, parameter_tree);
|
|
break;
|
|
case V8_ADDRESS_RANGE_PARAMETER_TAG:
|
|
dissect_address_range_parameter(parameter_tvb, pinfo, parameter_tree);
|
|
break;
|
|
case V8_CORRELATION_ID_PARAMETER_TAG:
|
|
dissect_correlation_id_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_IMPORTANCE_PARAMETER_TAG:
|
|
dissect_importance_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_MESSAGE_PRIORITY_PARAMETER_TAG:
|
|
dissect_message_priority_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_PROTOCOL_CLASS_PARAMETER_TAG:
|
|
dissect_protocol_class_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_SEQUENCE_CONTROL_PARAMETER_TAG:
|
|
dissect_sequence_control_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_SEGMENTATION_PARAMETER_TAG:
|
|
dissect_segmentation_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case V8_SMI_PARAMETER_TAG:
|
|
dissect_smi_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case V8_TID_LABEL_PARAMETER_TAG:
|
|
dissect_tid_label_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case V8_DRN_LABEL_PARAMETER_TAG:
|
|
dissect_drn_label_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case V8_GLOBAL_TITLE_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_global_title_parameter(parameter_tvb, parameter_tree, (source_ssn != NULL));
|
|
break;
|
|
case V8_POINT_CODE_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_point_code_parameter(parameter_tvb, parameter_tree, parameter_item, (source_ssn != NULL));
|
|
break;
|
|
case V8_SUBSYSTEM_NUMBER_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_ssn_parameter(parameter_tvb, parameter_tree, parameter_item, &ssn, (source_ssn != NULL));
|
|
if(source_ssn)
|
|
{
|
|
*source_ssn = ssn;
|
|
}
|
|
if(dest_ssn)
|
|
{
|
|
*dest_ssn = ssn;
|
|
}
|
|
break;
|
|
case V8_IPV4_ADDRESS_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_ipv4_parameter(parameter_tvb, parameter_tree, parameter_item, (source_ssn != NULL));
|
|
break;
|
|
case V8_HOSTNAME_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_hostname_parameter(parameter_tvb, parameter_tree, parameter_item, (source_ssn != NULL));
|
|
break;
|
|
case V8_IPV6_ADDRESS_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_ipv6_parameter(parameter_tvb, parameter_tree, parameter_item, (source_ssn != NULL));
|
|
break;
|
|
default:
|
|
dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
};
|
|
if (parameter_tree && (padding_length > 0))
|
|
proto_tree_add_item(parameter_tree, hf_sua_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, ENC_NA);
|
|
}
|
|
|
|
#define INFO_STRING_PARAMETER_TAG 0x0004
|
|
#define ROUTING_CONTEXT_PARAMETER_TAG 0x0006
|
|
#define DIAGNOSTIC_INFO_PARAMETER_TAG 0x0007
|
|
#define HEARTBEAT_DATA_PARAMETER_TAG 0x0009
|
|
#define TRAFFIC_MODE_TYPE_PARAMETER_TAG 0x000b
|
|
#define ERROR_CODE_PARAMETER_TAG 0x000c
|
|
#define STATUS_PARAMETER_TAG 0x000d
|
|
#define ASP_IDENTIFIER_PARAMETER_TAG 0x0011
|
|
#define AFFECTED_POINT_CODE_PARAMETER_TAG 0x0012
|
|
#define CORRELATION_ID_PARAMETER_TAG 0x0013
|
|
#define REGISTRATION_RESULT_PARAMETER_TAG 0x0014
|
|
#define DEREGISTRATION_RESULT_PARAMETER_TAG 0x0015
|
|
#define REGISTRATION_STATUS_PARAMETER_TAG 0x0016
|
|
#define DEREGISTRATION_STATUS_PARAMETER_TAG 0x0017
|
|
#define LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG 0x0018
|
|
|
|
#define SS7_HOP_COUNTER_PARAMETER_TAG 0x0101
|
|
#define SOURCE_ADDRESS_PARAMETER_TAG 0x0102
|
|
#define DESTINATION_ADDRESS_PARAMETER_TAG 0x0103
|
|
#define SOURCE_REFERENCE_NUMBER_PARAMETER_TAG 0x0104
|
|
#define DESTINATION_REFERENCE_NUMBER_PARAMETER_TAG 0x0105
|
|
#define SCCP_CAUSE_PARAMETER_TAG 0x0106
|
|
#define SEQUENCE_NUMBER_PARAMETER_TAG 0x0107
|
|
#define RECEIVE_SEQUENCE_NUMBER_PARAMETER_TAG 0x0108
|
|
#define ASP_CAPABILITIES_PARAMETER_TAG 0x0109
|
|
#define CREDIT_PARAMETER_TAG 0x010a
|
|
#define DATA_PARAMETER_TAG 0x010b
|
|
#define USER_CAUSE_PARAMETER_TAG 0x010c
|
|
#define NETWORK_APPEARANCE_PARAMETER_TAG 0x010d
|
|
#define ROUTING_KEY_PARAMETER_TAG 0x010e
|
|
#define DRN_LABEL_PARAMETER_TAG 0x010f
|
|
#define TID_LABEL_PARAMETER_TAG 0x0110
|
|
#define ADDRESS_RANGE_PARAMETER_TAG 0x0111
|
|
#define SMI_PARAMETER_TAG 0x0112
|
|
#define IMPORTANCE_PARAMETER_TAG 0x0113
|
|
#define MESSAGE_PRIORITY_PARAMETER_TAG 0x0114
|
|
#define PROTOCOL_CLASS_PARAMETER_TAG 0x0115
|
|
#define SEQUENCE_CONTROL_PARAMETER_TAG 0x0116
|
|
#define SEGMENTATION_PARAMETER_TAG 0x0117
|
|
#define CONGESTION_LEVEL_PARAMETER_TAG 0x0118
|
|
|
|
#define GLOBAL_TITLE_PARAMETER_TAG 0x8001
|
|
#define POINT_CODE_PARAMETER_TAG 0x8002
|
|
#define SUBSYSTEM_NUMBER_PARAMETER_TAG 0x8003
|
|
#define IPV4_ADDRESS_PARAMETER_TAG 0x8004
|
|
#define HOSTNAME_PARAMETER_TAG 0x8005
|
|
#define IPV6_ADDRESS_PARAMETER_TAG 0x8006
|
|
|
|
static const value_string parameter_tag_values[] = {
|
|
{ INFO_STRING_PARAMETER_TAG, "Info String" },
|
|
{ ROUTING_CONTEXT_PARAMETER_TAG, "Routing context" },
|
|
{ DIAGNOSTIC_INFO_PARAMETER_TAG, "Diagnostic info" },
|
|
{ HEARTBEAT_DATA_PARAMETER_TAG, "Heartbeat data" },
|
|
{ TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" },
|
|
{ ERROR_CODE_PARAMETER_TAG, "Error code" },
|
|
{ STATUS_PARAMETER_TAG, "Status" },
|
|
{ ASP_IDENTIFIER_PARAMETER_TAG, "ASP identifier" },
|
|
{ AFFECTED_POINT_CODE_PARAMETER_TAG, "Affected point code" },
|
|
{ CORRELATION_ID_PARAMETER_TAG, "Correlation ID" },
|
|
{ REGISTRATION_RESULT_PARAMETER_TAG, "Registration result" },
|
|
{ DEREGISTRATION_RESULT_PARAMETER_TAG, "Deregistration result" },
|
|
{ REGISTRATION_STATUS_PARAMETER_TAG, "Registration status" },
|
|
{ DEREGISTRATION_STATUS_PARAMETER_TAG, "Deregistration status" },
|
|
{ LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG, "Local routing key identifier" },
|
|
{ SS7_HOP_COUNTER_PARAMETER_TAG, "SS7 hop counter" },
|
|
{ SOURCE_ADDRESS_PARAMETER_TAG, "Source address" },
|
|
{ DESTINATION_ADDRESS_PARAMETER_TAG, "Destination address" },
|
|
{ SOURCE_REFERENCE_NUMBER_PARAMETER_TAG, "Source reference number" },
|
|
{ DESTINATION_REFERENCE_NUMBER_PARAMETER_TAG, "Destination reference number" },
|
|
{ SCCP_CAUSE_PARAMETER_TAG, "SCCP cause" },
|
|
{ SEQUENCE_NUMBER_PARAMETER_TAG, "Sequence number" },
|
|
{ RECEIVE_SEQUENCE_NUMBER_PARAMETER_TAG, "Receive sequence number" },
|
|
{ ASP_CAPABILITIES_PARAMETER_TAG, "ASP capabilities" },
|
|
{ CREDIT_PARAMETER_TAG, "Credit" },
|
|
{ DATA_PARAMETER_TAG, "Data" },
|
|
{ USER_CAUSE_PARAMETER_TAG, "User/Cause" },
|
|
{ NETWORK_APPEARANCE_PARAMETER_TAG, "Network appearance" },
|
|
{ ROUTING_KEY_PARAMETER_TAG, "Routing key" },
|
|
{ DRN_LABEL_PARAMETER_TAG, "DRN label" },
|
|
{ TID_LABEL_PARAMETER_TAG, "TID label" },
|
|
{ ADDRESS_RANGE_PARAMETER_TAG, "Address range" },
|
|
{ SMI_PARAMETER_TAG, "SMI" },
|
|
{ IMPORTANCE_PARAMETER_TAG, "Importance" },
|
|
{ MESSAGE_PRIORITY_PARAMETER_TAG, "Message priority" },
|
|
{ PROTOCOL_CLASS_PARAMETER_TAG, "Protocol class" },
|
|
{ SEQUENCE_CONTROL_PARAMETER_TAG, "Sequence control" },
|
|
{ SEGMENTATION_PARAMETER_TAG, "Segmentation" },
|
|
{ CONGESTION_LEVEL_PARAMETER_TAG, "Congestion level" },
|
|
{ GLOBAL_TITLE_PARAMETER_TAG, "Global title" },
|
|
{ POINT_CODE_PARAMETER_TAG, "Point code" },
|
|
{ SUBSYSTEM_NUMBER_PARAMETER_TAG, "Subsystem number" },
|
|
{ IPV4_ADDRESS_PARAMETER_TAG, "IPv4 address" },
|
|
{ HOSTNAME_PARAMETER_TAG, "Hostname" },
|
|
{ IPV6_ADDRESS_PARAMETER_TAG, "IPv6 address" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *tree, tvbuff_t **data_tvb, guint8 *source_ssn, guint8 *dest_ssn)
|
|
{
|
|
guint16 tag, length, padding_length;
|
|
proto_item *parameter_item;
|
|
proto_tree *parameter_tree;
|
|
guint8 ssn = INVALID_SSN;
|
|
const gchar *param_tag_str = NULL;
|
|
|
|
/* Extract tag and length from the parameter */
|
|
tag = tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET);
|
|
length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
|
|
padding_length = tvb_reported_length(parameter_tvb) - length;
|
|
|
|
/* Create proto_tree stuff */
|
|
/* If it's a known parameter it's present in the value_string.
|
|
* If param_tag_str = NULL then this is an unknown parameter
|
|
*/
|
|
param_tag_str = try_val_to_str(tag, parameter_tag_values);
|
|
if(param_tag_str) {
|
|
/* The parameter exists */
|
|
parameter_tree = proto_tree_add_subtree(tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1, ett_sua_parameter, ¶meter_item, param_tag_str);
|
|
} else {
|
|
if(dissector_try_uint(sua_parameter_table, tag, parameter_tvb, pinfo,tree)) {
|
|
return;
|
|
}
|
|
|
|
parameter_tree = proto_tree_add_subtree(tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1, ett_sua_parameter, ¶meter_item, "Unknown parameter");
|
|
}
|
|
|
|
/* Add tag and length to the sua tree */
|
|
proto_tree_add_item(parameter_tree, hf_sua_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sua_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, ENC_BIG_ENDIAN);
|
|
|
|
/*
|
|
** If no tree, only the data, ssn, PC, and GT parameters in the source and destination
|
|
** addresses need to be dissected. This in order to make dissection of the data
|
|
** possible and to allow us to set the source and destination addresses when there is
|
|
** no tree.
|
|
*/
|
|
if (!tree && tag != DATA_PARAMETER_TAG
|
|
&& tag != SOURCE_ADDRESS_PARAMETER_TAG
|
|
&& tag != DESTINATION_ADDRESS_PARAMETER_TAG
|
|
&& tag != POINT_CODE_PARAMETER_TAG
|
|
&& tag != GLOBAL_TITLE_PARAMETER_TAG
|
|
&& tag != DESTINATION_REFERENCE_NUMBER_PARAMETER_TAG
|
|
&& tag != SOURCE_REFERENCE_NUMBER_PARAMETER_TAG
|
|
&& tag != SUBSYSTEM_NUMBER_PARAMETER_TAG)
|
|
return; /* Nothing to do here */
|
|
|
|
switch(tag) {
|
|
case DATA_PARAMETER_TAG:
|
|
dissect_data_parameter(parameter_tvb, parameter_tree, parameter_item, data_tvb);
|
|
break;
|
|
case INFO_STRING_PARAMETER_TAG:
|
|
dissect_info_string_parameter(parameter_tvb, pinfo, parameter_tree, parameter_item);
|
|
break;
|
|
case ROUTING_CONTEXT_PARAMETER_TAG:
|
|
dissect_routing_context_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case DIAGNOSTIC_INFO_PARAMETER_TAG:
|
|
dissect_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case HEARTBEAT_DATA_PARAMETER_TAG:
|
|
dissect_heartbeat_data_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case TRAFFIC_MODE_TYPE_PARAMETER_TAG:
|
|
dissect_traffic_mode_type_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case ERROR_CODE_PARAMETER_TAG:
|
|
dissect_error_code_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case STATUS_PARAMETER_TAG:
|
|
dissect_status_type_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case CONGESTION_LEVEL_PARAMETER_TAG:
|
|
dissect_congestion_level_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case ASP_IDENTIFIER_PARAMETER_TAG:
|
|
dissect_asp_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case AFFECTED_POINT_CODE_PARAMETER_TAG:
|
|
dissect_affected_destinations_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case REGISTRATION_STATUS_PARAMETER_TAG:
|
|
dissect_registration_status_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case DEREGISTRATION_STATUS_PARAMETER_TAG:
|
|
dissect_deregistration_status_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case LOCAL_ROUTING_KEY_IDENTIFIER_PARAMETER_TAG:
|
|
dissect_local_routing_key_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case SS7_HOP_COUNTER_PARAMETER_TAG:
|
|
dissect_ss7_hop_counter_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case SOURCE_ADDRESS_PARAMETER_TAG:
|
|
dissect_source_address_parameter(parameter_tvb, pinfo, parameter_tree, source_ssn);
|
|
break;
|
|
case DESTINATION_ADDRESS_PARAMETER_TAG:
|
|
dissect_destination_address_parameter(parameter_tvb, pinfo, parameter_tree, dest_ssn);
|
|
break;
|
|
case SOURCE_REFERENCE_NUMBER_PARAMETER_TAG:
|
|
dissect_source_reference_number_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case DESTINATION_REFERENCE_NUMBER_PARAMETER_TAG:
|
|
dissect_destination_reference_number_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case SCCP_CAUSE_PARAMETER_TAG:
|
|
dissect_sccp_cause_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case SEQUENCE_NUMBER_PARAMETER_TAG:
|
|
dissect_sequence_number_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case RECEIVE_SEQUENCE_NUMBER_PARAMETER_TAG:
|
|
dissect_receive_sequence_number_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case ASP_CAPABILITIES_PARAMETER_TAG:
|
|
dissect_asp_capabilities_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case CREDIT_PARAMETER_TAG:
|
|
dissect_credit_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case USER_CAUSE_PARAMETER_TAG:
|
|
dissect_user_cause_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case NETWORK_APPEARANCE_PARAMETER_TAG:
|
|
dissect_network_appearance_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case ROUTING_KEY_PARAMETER_TAG:
|
|
dissect_routing_key_parameter(parameter_tvb, pinfo, parameter_tree);
|
|
break;
|
|
case REGISTRATION_RESULT_PARAMETER_TAG:
|
|
dissect_registration_result_parameter(parameter_tvb, pinfo, parameter_tree);
|
|
break;
|
|
case DEREGISTRATION_RESULT_PARAMETER_TAG:
|
|
dissect_deregistration_result_parameter(parameter_tvb, pinfo, parameter_tree);
|
|
break;
|
|
case ADDRESS_RANGE_PARAMETER_TAG:
|
|
dissect_address_range_parameter(parameter_tvb, pinfo, parameter_tree);
|
|
break;
|
|
case CORRELATION_ID_PARAMETER_TAG:
|
|
dissect_correlation_id_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case IMPORTANCE_PARAMETER_TAG:
|
|
dissect_importance_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case MESSAGE_PRIORITY_PARAMETER_TAG:
|
|
dissect_message_priority_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case PROTOCOL_CLASS_PARAMETER_TAG:
|
|
dissect_protocol_class_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case SEQUENCE_CONTROL_PARAMETER_TAG:
|
|
dissect_sequence_control_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case SEGMENTATION_PARAMETER_TAG:
|
|
dissect_segmentation_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case SMI_PARAMETER_TAG:
|
|
dissect_smi_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case TID_LABEL_PARAMETER_TAG:
|
|
dissect_tid_label_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case DRN_LABEL_PARAMETER_TAG:
|
|
dissect_drn_label_parameter(parameter_tvb, parameter_tree);
|
|
break;
|
|
case GLOBAL_TITLE_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_global_title_parameter(parameter_tvb, parameter_tree, (source_ssn != NULL));
|
|
break;
|
|
case POINT_CODE_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_point_code_parameter(parameter_tvb, parameter_tree, parameter_item, (source_ssn != NULL));
|
|
break;
|
|
case SUBSYSTEM_NUMBER_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_ssn_parameter(parameter_tvb, parameter_tree, parameter_item, &ssn, (source_ssn != NULL));
|
|
if(source_ssn)
|
|
{
|
|
*source_ssn = ssn;
|
|
}
|
|
if(dest_ssn)
|
|
{
|
|
*dest_ssn = ssn;
|
|
}
|
|
break;
|
|
case IPV4_ADDRESS_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_ipv4_parameter(parameter_tvb, parameter_tree, parameter_item, (source_ssn != NULL));
|
|
break;
|
|
case HOSTNAME_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_hostname_parameter(parameter_tvb, parameter_tree, parameter_item, (source_ssn != NULL));
|
|
break;
|
|
case IPV6_ADDRESS_PARAMETER_TAG:
|
|
/* Reuse whether we have source_ssn or not to determine which address we're looking at */
|
|
dissect_ipv6_parameter(parameter_tvb, parameter_tree, parameter_item, (source_ssn != NULL));
|
|
break;
|
|
default:
|
|
dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
};
|
|
if (parameter_tree && (padding_length > 0))
|
|
proto_tree_add_item(parameter_tree, hf_sua_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, ENC_NA);
|
|
}
|
|
|
|
static void
|
|
dissect_parameters(tvbuff_t *parameters_tvb, packet_info *pinfo, proto_tree *tree, tvbuff_t **data_tvb, guint8 *source_ssn, guint8 *dest_ssn)
|
|
{
|
|
gint offset, length, total_length, remaining_length;
|
|
tvbuff_t *parameter_tvb;
|
|
|
|
offset = 0;
|
|
while((remaining_length = tvb_reported_length_remaining(parameters_tvb, offset))) {
|
|
length = tvb_get_ntohs(parameters_tvb, offset + PARAMETER_LENGTH_OFFSET);
|
|
total_length = WS_ROUNDUP_4(length);
|
|
if (remaining_length >= length)
|
|
total_length = MIN(total_length, remaining_length);
|
|
/* create a tvb for the parameter including the padding bytes */
|
|
parameter_tvb = tvb_new_subset_length(parameters_tvb, offset, total_length);
|
|
switch(version) {
|
|
case SUA_V08:
|
|
dissect_v8_parameter(parameter_tvb, pinfo, tree, data_tvb, source_ssn, dest_ssn);
|
|
break;
|
|
case SUA_RFC:
|
|
dissect_parameter(parameter_tvb, pinfo, tree, data_tvb, source_ssn, dest_ssn);
|
|
break;
|
|
}
|
|
/* get rid of the handled parameter */
|
|
offset += total_length;
|
|
}
|
|
}
|
|
|
|
static void
|
|
dissect_sua_message(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *sua_tree, proto_tree *tree)
|
|
{
|
|
tvbuff_t *common_header_tvb;
|
|
tvbuff_t *parameters_tvb;
|
|
tvbuff_t *data_tvb = NULL;
|
|
|
|
heur_dtbl_entry_t *hdtbl_entry;
|
|
#if 0
|
|
proto_tree *assoc_tree;
|
|
#endif
|
|
guint8 source_ssn = INVALID_SSN;
|
|
guint8 dest_ssn = INVALID_SSN;
|
|
proto_item *assoc_item;
|
|
struct _sccp_msg_info_t* sccp_info = NULL;
|
|
|
|
message_class = 0;
|
|
message_type = 0;
|
|
drn = 0;
|
|
srn = 0;
|
|
|
|
assoc = NULL;
|
|
no_sua_assoc.calling_dpc = 0;
|
|
no_sua_assoc.called_dpc = 0;
|
|
no_sua_assoc.calling_ssn = INVALID_SSN;
|
|
no_sua_assoc.called_ssn = INVALID_SSN;
|
|
no_sua_assoc.has_bw_key = FALSE;
|
|
no_sua_assoc.has_fw_key = FALSE;
|
|
|
|
sua_opc = wmem_new0(pinfo->pool, mtp3_addr_pc_t);
|
|
sua_dpc = wmem_new0(pinfo->pool, mtp3_addr_pc_t);
|
|
sua_source_gt = NULL;
|
|
sua_destination_gt = NULL;
|
|
|
|
common_header_tvb = tvb_new_subset_length(message_tvb, COMMON_HEADER_OFFSET, COMMON_HEADER_LENGTH);
|
|
dissect_common_header(common_header_tvb, pinfo, sua_tree);
|
|
|
|
parameters_tvb = tvb_new_subset_remaining(message_tvb, COMMON_HEADER_LENGTH);
|
|
dissect_parameters(parameters_tvb, pinfo, sua_tree, &data_tvb, &source_ssn, &dest_ssn);
|
|
|
|
|
|
|
|
if (message_class == MESSAGE_CLASS_CO_MESSAGE) {
|
|
/* XXX: this might fail with multihomed SCTP (on a path failure during a call)
|
|
* or with "load sharing"?
|
|
*/
|
|
sccp_assoc_info_t* sccp_assoc;
|
|
sccp_decode_context_t sccp_decode;
|
|
/* sua assoc */
|
|
|
|
switch (message_type) {
|
|
case MESSAGE_TYPE_CORE:
|
|
assoc = sua_assoc(pinfo,&(pinfo->src),&(pinfo->dst), srn , drn);
|
|
if(assoc) {
|
|
assoc->calling_routing_ind = sua_ri;
|
|
assoc->calling_ssn = source_ssn;
|
|
assoc->called_ssn = dest_ssn;
|
|
}
|
|
break;
|
|
case MESSAGE_TYPE_COAK:
|
|
assoc = sua_assoc(pinfo,&(pinfo->src),&(pinfo->dst), srn , drn);
|
|
if(assoc) {
|
|
assoc->called_routing_ind = sua_ri;
|
|
if( (assoc->called_ssn != INVALID_SSN)&& (dest_ssn != INVALID_SSN)) {
|
|
assoc->called_ssn = dest_ssn;
|
|
}
|
|
}
|
|
break;
|
|
default :
|
|
assoc = sua_assoc(pinfo,&(pinfo->src),&(pinfo->dst), srn , drn);
|
|
}
|
|
|
|
switch (message_type) {
|
|
case MESSAGE_TYPE_CORE:
|
|
case MESSAGE_TYPE_COAK:
|
|
break;
|
|
default:
|
|
if((assoc && assoc->called_ssn != INVALID_SSN)&& (dest_ssn != INVALID_SSN)) {
|
|
dest_ssn = assoc->called_ssn;
|
|
}
|
|
if((assoc && assoc->calling_ssn != INVALID_SSN)&& (source_ssn != INVALID_SSN)) {
|
|
source_ssn = assoc->calling_ssn;
|
|
}
|
|
|
|
}
|
|
if (assoc && assoc->assoc_id !=0) {
|
|
assoc_item = proto_tree_add_uint(tree, hf_sua_assoc_id, message_tvb, 0, 0, assoc->assoc_id);
|
|
proto_item_set_generated(assoc_item);
|
|
#if 0
|
|
assoc_tree = proto_item_add_subtree(assoc_item, ett_sua_assoc);
|
|
proto_tree_add_debug_text(assoc_tree, message_tvb, 0, 0, "routing_ind %u", assoc->calling_routing_ind);
|
|
proto_tree_add_debug_text(assoc_tree, message_tvb, 0, 0, "routing_ind %u", assoc->called_routing_ind);
|
|
proto_tree_add_debug_text(assoc_tree, message_tvb, 0, 0, "calling_ssn %u", assoc->calling_ssn);
|
|
proto_tree_add_debug_text(assoc_tree, message_tvb, 0, 0, "called_ssn %u", assoc->called_ssn);
|
|
#endif /* 0 */
|
|
}
|
|
|
|
sccp_decode.message_type = message_type;
|
|
sccp_decode.dlr = drn;
|
|
sccp_decode.slr = srn;
|
|
sccp_decode.assoc = NULL;
|
|
sccp_decode.sccp_msg = NULL; /* Unused, but initialized */
|
|
|
|
sccp_assoc = get_sccp_assoc(pinfo, tvb_offset_from_real_beginning(message_tvb), &sccp_decode);
|
|
if (sccp_assoc && sccp_assoc->curr_msg) {
|
|
sccp_info = sccp_assoc->curr_msg;
|
|
tap_queue_packet(sua_tap,pinfo,sccp_assoc->curr_msg);
|
|
}
|
|
}
|
|
|
|
if (set_addresses) {
|
|
if (sua_opc->type)
|
|
set_address(&pinfo->src, ss7pc_address_type, sizeof(mtp3_addr_pc_t), (guint8 *) sua_opc);
|
|
if (sua_dpc->type)
|
|
set_address(&pinfo->dst, ss7pc_address_type, sizeof(mtp3_addr_pc_t), (guint8 *) sua_dpc);
|
|
|
|
if (sua_source_gt)
|
|
set_address(&pinfo->src, AT_STRINGZ, 1+(int)strlen(sua_source_gt), wmem_strdup(pinfo->pool, sua_source_gt));
|
|
if (sua_destination_gt)
|
|
set_address(&pinfo->dst, AT_STRINGZ, 1+(int)strlen(sua_destination_gt), wmem_strdup(pinfo->pool, sua_destination_gt));
|
|
}
|
|
|
|
/* If there was SUA data it could be dissected */
|
|
if(data_tvb)
|
|
{
|
|
/* Try subdissectors (if we found a valid SSN on the current message) */
|
|
if ((dest_ssn == INVALID_SSN ||
|
|
!dissector_try_uint_new(sccp_ssn_dissector_table, dest_ssn, data_tvb, pinfo, tree, TRUE, sccp_info))
|
|
&& (source_ssn == INVALID_SSN ||
|
|
!dissector_try_uint_new(sccp_ssn_dissector_table, source_ssn, data_tvb, pinfo, tree, TRUE, sccp_info)))
|
|
{
|
|
/* try heuristic subdissector list to see if there are any takers */
|
|
if (dissector_try_heuristic(heur_subdissector_list, data_tvb, pinfo, tree, &hdtbl_entry, sccp_info)) {
|
|
return;
|
|
}
|
|
/* No sub-dissection occurred, treat it as raw data */
|
|
call_data_dissector(data_tvb, pinfo, tree);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int
|
|
dissect_sua(tvbuff_t *message_tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
|
|
{
|
|
proto_item *sua_item;
|
|
proto_tree *sua_tree;
|
|
|
|
/* make entry in the Protocol column on summary display */
|
|
|
|
switch (version) {
|
|
case SUA_V08:
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "SUA (ID 08)");
|
|
break;
|
|
case SUA_RFC:
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "SUA (RFC 3868)");
|
|
break;
|
|
}
|
|
|
|
/* Clear entries in Info column on summary display */
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
/* create the sua protocol tree */
|
|
sua_item = proto_tree_add_item(tree, proto_sua, message_tvb, 0, -1, ENC_NA);
|
|
sua_tree = proto_item_add_subtree(sua_item, ett_sua);
|
|
|
|
/* dissect the message */
|
|
dissect_sua_message(message_tvb, pinfo, sua_tree, tree);
|
|
return tvb_captured_length(message_tvb);
|
|
}
|
|
|
|
/* Register the protocol with Wireshark */
|
|
void
|
|
proto_register_sua(void)
|
|
{
|
|
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] = {
|
|
{ &hf_sua_version, { "Version", "sua.version", FT_UINT8, BASE_DEC, VALS(protocol_version_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_reserved, { "Reserved", "sua.reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_message_class, { "Message Class", "sua.message_class", FT_UINT8, BASE_DEC, VALS(message_class_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_message_type, { "Message Type", "sua.message_type", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_message_length, { "Message Length", "sua.message_length", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_parameter_tag, { "Parameter Tag", "sua.parameter_tag", FT_UINT16, BASE_HEX, VALS(parameter_tag_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_v8_parameter_tag, { "Parameter Tag", "sua.parameter_tag", FT_UINT16, BASE_HEX, VALS(v8_parameter_tag_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_parameter_length, { "Parameter Length", "sua.parameter_length", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_parameter_value, { "Parameter Value", "sua.parameter_value", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_parameter_padding, { "Padding", "sua.parameter_padding", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_info_string, { "Info string", "sua.info_string", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_routing_context, { "Routing context", "sua.routing_context", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_diagnostic_information_info, { "Diagnostic Information", "sua.diagnostic_information", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_heartbeat_data, { "Heartbeat Data", "sua.heartbeat_data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_traffic_mode_type, { "Traffic mode Type", "sua.traffic_mode_type", FT_UINT32, BASE_DEC, VALS(traffic_mode_type_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_error_code, { "Error code", "sua.error_code", FT_UINT32, BASE_DEC, VALS(error_code_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_v8_error_code, { "Error code", "sua.error_code", FT_UINT32, BASE_DEC, VALS(v8_error_code_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_status_type, { "Status type", "sua.status_type", FT_UINT16, BASE_DEC, VALS(status_type_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_status_info, { "Status info", "sua.status_info", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_congestion_level, { "Congestion Level", "sua.congestion_level", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_asp_identifier, { "ASP Identifier", "sua.asp_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_mask, { "Mask", "sua.affected_point_code_mask", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dpc, { "Affected DPC", "sua.affected_pointcode_dpc", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_registration_status, { "Registration status", "sua.registration_status", FT_UINT32, BASE_DEC, VALS(registration_status_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_deregistration_status, { "Deregistration status", "sua.deregistration_status", FT_UINT32, BASE_DEC, VALS(deregistration_status_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_local_routing_key_identifier, { "Local routing key identifier", "sua.local_routing_key_identifier", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
|
|
{ &hf_sua_source_address_routing_indicator, { "Source Routing Indicator", "sua.source.routing_indicator", FT_UINT16, BASE_DEC, VALS(routing_indicator_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_address_reserved_bits, { "Source Reserved Bits", "sua.source.reserved_bits", FT_UINT16, BASE_DEC, NULL, ADDRESS_RESERVED_BITMASK, NULL, HFILL } },
|
|
{ &hf_sua_source_address_gt_bit, { "Source Include GT", "sua.source.gt_bit", FT_BOOLEAN, 16, NULL, ADDRESS_GT_BITMASK, NULL, HFILL } },
|
|
{ &hf_sua_source_address_pc_bit, { "Source Include PC", "sua.source.pc_bit", FT_BOOLEAN, 16, NULL, ADDRESS_PC_BITMASK, NULL, HFILL } },
|
|
{ &hf_sua_source_address_ssn_bit, { "Source Include SSN", "sua.source.ssn_bit", FT_BOOLEAN, 16, NULL, ADDRESS_SSN_BITMASK, NULL, HFILL } },
|
|
{ &hf_sua_source_gt_reserved, { "Source Reserved", "sua.source.gt_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_gti, { "Source GTI", "sua.source.gti", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_number_of_digits, { "Source Number of Digits", "sua.source.global_title_number_of_digits", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_translation_type, { "Source Translation Type", "sua.source.global_title_translation_type", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_numbering_plan, { "Source Numbering Plan", "sua.source.global_title_numbering_plan", FT_UINT8, BASE_HEX, VALS(numbering_plan_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_nature_of_address, { "Source Nature of Address", "sua.source.global_title_nature_of_address", FT_UINT8, BASE_HEX, VALS(nature_of_address_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_global_title_digits, { "Source Global Title Digits", "sua.source.global_title_digits", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_point_code, { "Source Point Code", "sua.source.point_code", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_ssn_reserved, { "Source Reserved", "sua.source.ssn_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_ssn_number, { "Source Subsystem Number", "sua.source.ssn", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_ipv4, { "Source IP Version 4 address", "sua.source.ipv4_address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_hostname, { "Source Hostname", "sua.source.hostname.name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_ipv6, { "Source IP Version 6 address", "sua.source.ipv6_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
|
|
{ &hf_sua_destination_address_routing_indicator, { "Destination Routing Indicator","sua.destination.routing_indicator", FT_UINT16, BASE_DEC, VALS(routing_indicator_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_destination_address_reserved_bits, { "Destination Reserved Bits", "sua.destination.reserved_bits", FT_UINT16, BASE_DEC, NULL, ADDRESS_RESERVED_BITMASK, NULL, HFILL } },
|
|
{ &hf_sua_destination_address_gt_bit, { "Destination Include GT", "sua.destination.gt_bit", FT_BOOLEAN, 16, NULL, ADDRESS_GT_BITMASK, NULL, HFILL } },
|
|
{ &hf_sua_destination_address_pc_bit, { "Destination Include PC", "sua.destination.pc_bit", FT_BOOLEAN, 16, NULL, ADDRESS_PC_BITMASK, NULL, HFILL } },
|
|
{ &hf_sua_destination_address_ssn_bit, { "Destination Include SSN", "sua.destination.ssn_bit", FT_BOOLEAN, 16, NULL, ADDRESS_SSN_BITMASK, NULL, HFILL } },
|
|
{ &hf_sua_dest_gt_reserved, { "Destination Reserved", "sua.destination.gt_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_gti, { "Destination GTI", "sua.destination.gti", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_number_of_digits, { "Destination Number of Digits", "sua.destination.global_title_number_of_digits", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_translation_type, { "Destination Translation Type", "sua.destination.global_title_translation_type", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_numbering_plan, { "Destination Numbering Plan", "sua.destination.global_title_numbering_plan", FT_UINT8, BASE_HEX, VALS(numbering_plan_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_nature_of_address, { "Destination Nature of Address","sua.destination.global_title_nature_of_address",FT_UINT8, BASE_HEX, VALS(nature_of_address_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_global_title_digits, { "Destination Global Title Digits","sua.destination.global_title_digits", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_point_code, { "Destination Point Code", "sua.destination.point_code", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_ssn_reserved, { "Destination Reserved", "sua.destination.ssn_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_ssn_number, { "Destination Subsystem Number", "sua.destination.ssn", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_ipv4, { "Destination IPv4 address", "sua.destination.ipv4_address", FT_IPv4, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_hostname, { "Destination Hostname", "sua.destination.hostname.name", FT_STRING, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_dest_ipv6, { "Destination IPv6 address", "sua.destination.ipv6_address", FT_IPv6, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
|
|
{ &hf_sua_ss7_hop_counter_counter, { "SS7 Hop Counter", "sua.ss7_hop_counter_counter", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_ss7_hop_counter_reserved, { "Reserved", "sua.ss7_hop_counter_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_destination_reference_number, { "Destination Reference Number", "sua.destination_reference_number", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_source_reference_number, { "Source Reference Number", "sua.source_reference_number", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_cause_reserved, { "Reserved", "sua.sccp_cause_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_cause_type, { "Cause Type", "sua.sccp_cause_type", FT_UINT8, BASE_HEX, VALS(cause_type_values), 0x0, NULL, HFILL } },
|
|
{ &hf_sua_cause_value, { "Cause Value", "sua.sccp_cause_value", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_sequence_number_reserved, { "Reserved", "sua.sequence_number_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_sequence_number_rec_number, { "Receive Sequence Number P(R)", "sua.sequence_number_receive_sequence_number", FT_UINT8, BASE_DEC, NULL, SEQ_NUM_MASK, NULL, HFILL } },
|
|
{ &hf_sua_sequence_number_more_data_bit, { "More Data Bit", "sua.sequence_number_more_data_bit", FT_BOOLEAN, 8, TFS(&more_data_bit_value), MORE_DATA_BIT_MASK, NULL, HFILL } },
|
|
{ &hf_sua_sequence_number_sent_number, { "Sent Sequence Number P(S)", "sua.sequence_number_sent_sequence_number", FT_UINT8, BASE_DEC, NULL, SEQ_NUM_MASK, NULL, HFILL } },
|
|
{ &hf_sua_sequence_number_spare_bit, { "Spare Bit", "sua.sequence_number_spare_bit", FT_UINT8, BASE_DEC, NULL, SPARE_BIT_MASK, NULL, HFILL } },
|
|
{ &hf_sua_receive_sequence_number_reserved, { "Reserved", "sua.receive_sequence_number_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_receive_sequence_number_number, { "Receive Sequence Number P(R)", "sua.receive_sequence_number_number", FT_UINT8, BASE_DEC, NULL, SEQ_NUM_MASK, NULL, HFILL } },
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{ &hf_sua_receive_sequence_number_spare_bit, { "Spare Bit", "sua.receive_sequence_number_spare_bit", FT_UINT8, BASE_DEC, NULL, SPARE_BIT_MASK, NULL, HFILL } },
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{ &hf_sua_asp_capabilities_reserved, { "Reserved", "sua.asp_capabilities_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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{ &hf_sua_protocol_classes, { "Protocol classes", "sua.protocol_classes", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
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{ &hf_sua_protocol_class_flags, { "Protocol class", "sua.protocol_class_flags", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
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{ &hf_sua_asp_capabilities_reserved_bits, { "Reserved Bits", "sua.asp_capabilities_reserved_bits", FT_UINT8, BASE_HEX, NULL, RESERVED_BITS_MASK, NULL, HFILL } },
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{ &hf_sua_asp_capabilities_a_bit, { "Protocol Class 3", "sua.asp_capabilities_a_bit", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), A_BIT_MASK, NULL, HFILL } },
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{ &hf_sua_asp_capabilities_b_bit, { "Protocol Class 2", "sua.asp_capabilities_b_bit", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), B_BIT_MASK, NULL, HFILL } },
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{ &hf_sua_asp_capabilities_c_bit, { "Protocol Class 1", "sua.asp_capabilities_c_bit", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), C_BIT_MASK, NULL, HFILL } },
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{ &hf_sua_asp_capabilities_d_bit, { "Protocol Class 0", "sua.asp_capabilities_d_bit", FT_BOOLEAN, 8, TFS(&tfs_supported_not_supported), D_BIT_MASK, NULL, HFILL } },
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{ &hf_sua_asp_capabilities_interworking, { "Interworking", "sua.asp_capabilities_interworking", FT_UINT8, BASE_HEX, VALS(interworking_values), 0x0, NULL, HFILL } },
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{ &hf_sua_credit, { "Credit", "sua.credit", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_sua_cause, { "Cause", "sua.cause_user_cause", FT_UINT16, BASE_DEC, VALS(cause_values), 0x0, NULL, HFILL } },
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{ &hf_sua_user, { "User", "sua.cause_user_user", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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{ &hf_sua_data, { "Data", "sua.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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{ &hf_sua_network_appearance, { "Network Appearance", "sua.network_appearance", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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|
{ &hf_sua_correlation_id, { "Correlation ID", "sua.correlation_id", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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|
{ &hf_sua_importance_reserved, { "Reserved", "sua.importance_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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|
{ &hf_sua_importance, { "Importance", "sua.importance_importance", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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|
{ &hf_sua_message_priority_reserved, { "Reserved", "sua.message_priority_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
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|
{ &hf_sua_message_priority, { "Message Priority", "sua.message_priority_priority", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
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|
{ &hf_sua_protocol_class_reserved, { "Reserved", "sua.protocol_class_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_return_on_error_bit, { "Return On Error Bit", "sua.protocol_class_return_on_error_bit", FT_BOOLEAN, 8, TFS(&return_on_error_bit_value), RETURN_ON_ERROR_BIT_MASK, NULL, HFILL } },
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{ &hf_sua_protocol_class, { "Protocol Class", "sua.protocol_class_class", FT_UINT8, BASE_DEC, NULL, PROTOCOL_CLASS_MASK, NULL, HFILL } },
|
|
{ &hf_sua_sequence_control, { "Sequence Control", "sua.sequence_control_sequence_control", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_first_remaining, { "First / Remaining", "sua.first_remaining", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_first_bit, { "First Segment Bit", "sua.segmentation_first_bit", FT_BOOLEAN, 8, TFS(&first_bit_value), FIRST_BIT_MASK, NULL, HFILL } },
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|
{ &hf_sua_number_of_remaining_segments, { "Number of Remaining Segments", "sua.segmentation_number_of_remaining_segments", FT_UINT8, BASE_DEC, NULL, NUMBER_OF_SEGMENTS_MASK, NULL, HFILL } },
|
|
{ &hf_sua_segmentation_reference, { "Segmentation Reference", "sua.segmentation_reference", FT_UINT24, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_smi_reserved, { "Reserved", "sua.smi_reserved", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_smi, { "SMI", "sua.smi_smi", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_tid_label_start, { "Start", "sua.tid_label_start", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_tid_label_end, { "End", "sua.tid_label_end", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_tid_label_value, { "Label Value", "sua.tid_label_value", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_drn_label_start, { "Start", "sua.drn_label_start", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_drn_label_end, { "End", "sua.drn_label_end", FT_UINT8, BASE_DEC, NULL, 0x0, NULL, HFILL } },
|
|
{ &hf_sua_drn_label_value, { "Label Value", "sua.drn_label_value", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } },
|
|
|
|
{ &hf_sua_assoc_id, { "Association ID", "sua.assoc.id", FT_UINT32, BASE_DEC, NULL, 0x0, NULL, HFILL}},
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_sua,
|
|
&ett_sua_parameter,
|
|
&ett_sua_source_address_indicator,
|
|
&ett_sua_destination_address_indicator,
|
|
&ett_sua_affected_destination,
|
|
&ett_sua_sequence_number_rec_number,
|
|
&ett_sua_sequence_number_sent_number,
|
|
&ett_sua_receive_sequence_number_number,
|
|
&ett_sua_protocol_classes,
|
|
&ett_sua_first_remaining,
|
|
&ett_sua_return_on_error_bit_and_protocol_class,
|
|
&ett_sua_assoc
|
|
|
|
};
|
|
|
|
module_t *sua_module;
|
|
|
|
static const enum_val_t options[] = {
|
|
{ "draft-08", "Internet Draft version 08", SUA_V08 },
|
|
{ "rfc3868", "RFC 3868", SUA_RFC },
|
|
{ NULL, NULL, 0 }
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
proto_sua = proto_register_protocol("SS7 SCCP-User Adaptation Layer", "SUA", "sua");
|
|
sua_handle = register_dissector("sua", dissect_sua, proto_sua);
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_sua, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
|
|
sua_module = prefs_register_protocol(proto_sua, NULL);
|
|
prefs_register_obsolete_preference(sua_module, "sua_version");
|
|
prefs_register_enum_preference(sua_module, "version", "SUA Version", "Version used by Wireshark", &version, options, FALSE);
|
|
prefs_register_bool_preference(sua_module, "set_addresses", "Set source and destination addresses",
|
|
"Set the source and destination addresses to the PC or GT digits, depending on the routing indicator."
|
|
" This may affect TCAP's ability to recognize which messages belong to which TCAP session.", &set_addresses);
|
|
|
|
heur_subdissector_list = register_heur_dissector_list("sua", proto_sua);
|
|
sua_parameter_table = register_dissector_table("sua.prop.tags", "SUA Proprietary Tags", proto_sua, FT_UINT16, BASE_DEC);
|
|
sua_tap = register_tap("sua");
|
|
|
|
assocs = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_sua(void)
|
|
{
|
|
/* Do we have an info string dissector ? */
|
|
sua_info_str_handle = find_dissector("sua.infostring");
|
|
dissector_add_uint("sctp.ppi", SUA_PAYLOAD_PROTOCOL_ID, sua_handle);
|
|
dissector_add_uint("sctp.port", SCTP_PORT_SUA, sua_handle);
|
|
|
|
sccp_ssn_dissector_table = find_dissector_table("sccp.ssn");
|
|
|
|
ss7pc_address_type = address_type_get_by_name("AT_SS7PC");
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 2
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=2 tabstop=8 expandtab:
|
|
* :indentSize=2:tabSize=8:noTabs=true:
|
|
*/
|