1655 lines
78 KiB
C
1655 lines
78 KiB
C
/* packet-v5ua.c
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*
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* Extension of all V5.2-User Adaptation Layer dissection elements
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* References:
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* RFC 3807
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* RFC 4233
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* RFC 5133
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*
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* Copyright 2009
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*
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* ISKRATEL d.o.o. | 4S d.o.o.
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* http://www.iskratel.si/ | http://www.4es.si/
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* <info@iskratel.si> | <projects@4es.si>
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* Vladimir Smrekar <vladimir.smrekar@gmail.com>
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*
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* Routines for V5.2-User Adaptation Layer dissection
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*
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* Extension of ISDN Q.921-User Adaptation Layer dissection
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* Copyright 2002, Michael Tuexen <Michael.Tuexen[AT]siemens.com>
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*
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* Christoph Neusch <christoph.neusch@nortelnetworks.com>
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "config.h"
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#include <epan/packet.h>
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#include <epan/sctpppids.h> /* include V5UA payload protocol ID */
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#include <wsutil/str_util.h>
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#include <wsutil/ws_roundup.h>
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void proto_register_v5ua(void);
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void proto_reg_handoff_v5ua(void);
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static int paddingl = 0;
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static int dlci_efa = -1;
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/* Initialize the protocol and registered fields */
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static int proto_v5ua = -1;
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static dissector_handle_t q931_handle;
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static dissector_handle_t v52_handle;
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/* common msg-header */
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static int hf_version = -1;
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static int hf_reserved = -1;
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static int hf_msg_class = -1;
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static int hf_msg_type = -1;
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/* static int hf_msg_type_id = -1; */
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static int hf_msg_length = -1;
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/* V5UA message header */
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static int hf_link_id = -1;
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static int hf_chnl_id = -1;
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static int hf_adaptation_layer_id = -1;
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static int hf_text_if_id = -1;
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static int hf_scn_protocol_id = -1;
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static int hf_info_string = -1;
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static int hf_asp_identifier = -1;
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static int hf_dlci_zero_bit = -1;
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static int hf_dlci_spare_bit = -1;
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static int hf_dlci_sapi = -1;
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static int hf_dlci_one_bit = -1;
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static int hf_dlci_tei = -1;
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static int hf_efa = -1;
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/* static int hf_spare_efa = -1; */
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/* variable length parameter (msg) */
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static int hf_parameter_tag = -1;
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static int hf_parameter_tag_draft = -1;
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static int hf_parameter_length = -1;
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static int hf_parameter_value = -1;
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static int hf_parameter_padding = -1;
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/* parameter fields */
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static int hf_link_status = -1;
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static int hf_sa_bit_id = -1;
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static int hf_sa_bit_value = -1;
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static int hf_diagnostic_info = -1;
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static int hf_if_range_start = -1;
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static int hf_if_range_end = -1;
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static int hf_heartbeat_data = -1;
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static int hf_traffic_mode_type = -1;
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static int hf_error_code = -1;
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static int hf_draft_error_code = -1;
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static int hf_status_type = -1;
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static int hf_status_id = -1;
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static int hf_error_reason = -1;
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static int hf_asp_reason = -1;
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static int hf_tei_status = -1;
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static int hf_tei_draft_status = -1;
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static int hf_release_reason = -1;
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/* Initialize the subtree pointers */
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static gint ett_v5ua = -1;
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static gint ett_v5ua_common_header= -1;
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static gint ett_v5ua_parameter = -1;
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static gint ett_v5ua_layer3 = -1;
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#define RFC 0x1
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#define DRAFT 0x2
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/* Version of IUA */
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static int iua_version = RFC;
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/* Variables necessary for dissection of draft messages */
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static int msg_class = -1;
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static int msg_type = -1;
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static int msg_length = -1;
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static int messageclassCopy = -1;
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static int sa_bit_id = -1;
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static int link_status_operational = -1;
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/* Code to actually dissect the packets */
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/* define the parameters for the Tags: Tag-Type,Tag-Length,Tag-Value (Payload) */
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#define PARAMETER_TAG_OFFSET 0
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#define PARAMETER_TAG_LENGTH 2
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#define PARAMETER_LENGTH_OFFSET (PARAMETER_TAG_OFFSET + PARAMETER_TAG_LENGTH)
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#define PARAMETER_LENGTH_LENGTH 2
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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 PARAMETER_HEADER_LENGTH (PARAMETER_TAG_LENGTH + PARAMETER_LENGTH_LENGTH)
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/*----------------------V5UA Interface Identifier (int) (Draft,RFC)------------*/
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/* define parameter for the format of the integer formatted Interface Identifier */
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#define INT_IF_ID_LINK_OFFSET PARAMETER_VALUE_OFFSET
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#define INT_IF_ID_LINK_LENGTH 4
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#define INT_IF_ID_CHNL_OFFSET INT_IF_ID_LINK_OFFSET
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#define INT_IF_ID_CHNL_LENGTH 1
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#define INT_INTERFACE_ID_LENGTH 4
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static int linkIdentifier = -1;
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static void
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dissect_int_interface_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
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{
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guint32 identifier;
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guint16 number_of_ids, id_number;
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gint offset;
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number_of_ids= (tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH) / INT_INTERFACE_ID_LENGTH;
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offset = INT_IF_ID_LINK_OFFSET;
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proto_item_append_text(parameter_item, "(");
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for (id_number = 0; id_number < number_of_ids; id_number++) {
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proto_tree_add_item(parameter_tree, hf_link_id, parameter_tvb, offset, INT_IF_ID_LINK_LENGTH, ENC_BIG_ENDIAN);
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identifier = tvb_get_ntohl(parameter_tvb,offset)>>5;
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if (id_number < 1) {
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proto_item_append_text(parameter_item, "L:%d",identifier);
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} else {
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proto_item_append_text(parameter_item, " | L:%d",identifier);
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}
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linkIdentifier = identifier;
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proto_tree_add_item(parameter_tree, hf_chnl_id, parameter_tvb, offset+3, INT_IF_ID_CHNL_LENGTH, ENC_BIG_ENDIAN);
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identifier = tvb_get_guint8(parameter_tvb,offset+3)&0x1f;
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proto_item_append_text(parameter_item, " C:%d", identifier);
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offset += INT_INTERFACE_ID_LENGTH;
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}
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proto_item_append_text(parameter_item, ")");
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}
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/*----------------------V5UA Interface Identifier (int) (Draft,RFC)------------*/
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/*----------------------Text Interface Identifier (RFC)------------------------*/
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#define TEXT_IF_ID_LENGTH_OFFSET PARAMETER_LENGTH_OFFSET
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#define TEXT_IF_ID_VALUE_OFFSET PARAMETER_VALUE_OFFSET
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#define TEXT_IF_ID_HEADER_LENGTH PARAMETER_HEADER_LENGTH
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static void
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dissect_text_interface_identifier_parameter(packet_info *pinfo, tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
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{
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guint16 if_id_length;
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const guint8* str;
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if_id_length = tvb_get_ntohs(parameter_tvb, TEXT_IF_ID_LENGTH_OFFSET) - TEXT_IF_ID_HEADER_LENGTH;
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proto_tree_add_item_ret_string(parameter_tree, hf_text_if_id, parameter_tvb, TEXT_IF_ID_VALUE_OFFSET, if_id_length, ENC_ASCII, pinfo->pool, &str);
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proto_item_append_text(parameter_item, " (0x%s)", str);
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}
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/*----------------------Text Interface Identifier (RFC)------------------------*/
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/*----------------------DLCI & Envelope Function Address------------------------*/
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/* interpretation of EFA-values */
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static const value_string efa_values[] = {
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{ 8175, "ISDN Protocol" },
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{ 8176, "PSTN Protocol" },
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{ 8177, "CONTROL Protocol" },
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{ 8178, "BCC Protocol" },
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{ 8179, "PROT Protocol" },
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{ 8180, "Link Control Protocol" },
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{ 8191, "VALUE RESERVED" },
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{ 0, NULL } };
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#define DLCI_LENGTH_OFFSET PARAMETER_LENGTH_OFFSET
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#define DLCI_SAPI_OFFSET PARAMETER_VALUE_OFFSET
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#define DLCI_HEADER_LENGTH PARAMETER_HEADER_LENGTH
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#define DLCI_SAPI_LENGTH 1
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#define DLCI_TEI_LENGTH 1
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#define EFA_LENGTH 2
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static void
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dissect_dlci_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item, packet_info *pinfo)
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{
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guint16 efa = 0, offset = 0;
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guint8 sapi = -1;
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guint8 tei = -1;
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if (iua_version == RFC) offset = DLCI_SAPI_OFFSET;
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else if(iua_version == DRAFT) offset = DLCI_HEADER_LENGTH + tvb_get_ntohs(parameter_tvb, DLCI_LENGTH_OFFSET);
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proto_tree_add_item(parameter_tree, hf_dlci_zero_bit, parameter_tvb, offset, DLCI_SAPI_LENGTH, ENC_BIG_ENDIAN);
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proto_tree_add_item(parameter_tree, hf_dlci_spare_bit, parameter_tvb, offset, DLCI_SAPI_LENGTH, ENC_BIG_ENDIAN);
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proto_tree_add_item(parameter_tree, hf_dlci_sapi, parameter_tvb, offset, DLCI_SAPI_LENGTH, ENC_BIG_ENDIAN);
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offset += DLCI_SAPI_LENGTH;
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proto_tree_add_item(parameter_tree, hf_dlci_one_bit, parameter_tvb, offset, DLCI_TEI_LENGTH, ENC_BIG_ENDIAN);
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proto_tree_add_item(parameter_tree, hf_dlci_tei, parameter_tvb, offset, DLCI_TEI_LENGTH, ENC_BIG_ENDIAN);
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sapi = tvb_get_ntohs(parameter_tvb, offset-DLCI_TEI_LENGTH-DLCI_SAPI_LENGTH)>>2;
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tei = tvb_get_ntohs(parameter_tvb, offset-DLCI_TEI_LENGTH)>>1;
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offset += DLCI_TEI_LENGTH;
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efa = tvb_get_ntohs(parameter_tvb, offset);
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dlci_efa = tvb_get_ntohs(parameter_tvb, offset);
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if (dlci_efa >= 0 && dlci_efa <= 8175) { col_append_fstr(pinfo->cinfo, COL_INFO, " | ISDN: %u", dlci_efa); }
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else if (dlci_efa == 8176) { col_append_str(pinfo->cinfo, COL_INFO, " | PSTN"); }
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else if (dlci_efa == 8177) { col_append_str(pinfo->cinfo, COL_INFO, " | Ctrl"); }
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else if (dlci_efa == 8178) { col_append_str(pinfo->cinfo, COL_INFO, " | BCC"); }
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else if (dlci_efa == 8179) { col_append_str(pinfo->cinfo, COL_INFO, " | ProtProt"); }
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else if (dlci_efa == 8180) { col_append_str(pinfo->cinfo, COL_INFO, " | LinkCtrl"); }
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if(efa <= 8175) {
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proto_tree_add_uint_format_value(parameter_tree, hf_efa, parameter_tvb, offset, EFA_LENGTH, efa,
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"ISDN (%u)", efa);
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proto_item_append_text(parameter_item, " (SAPI:%u TEI:%u EFA:ISDN (%u))",sapi,tei,efa);
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}
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else if (efa <= 8180){
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proto_tree_add_uint_format_value(parameter_tree, hf_efa, parameter_tvb, offset, EFA_LENGTH, efa,
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"%s (%u)", val_to_str_const(efa, efa_values, "unknown EFA"),tvb_get_ntohs(parameter_tvb, offset));
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proto_item_append_text(parameter_item, " (SAPI:%u TEI:%u EFA:%s (%u))",sapi,tei,val_to_str_const(efa, efa_values, "unknown EFA-value"),efa);
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}
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else {
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proto_tree_add_uint_format_value(parameter_tree, hf_efa, parameter_tvb, offset, EFA_LENGTH, efa,
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"RESERVED (%u)", efa);
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proto_item_append_text(parameter_item, " (SAPI:%u TEI:%u EFA:RESERVED (%u))",sapi,tei,efa);
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}
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}
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/*----------------------DLCI & Envelope Function Address------------------------*/
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/*----------------------Error Indication (Draft)-------------------------------*/
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/* define Error Code Parameter for Layer Management (MGMT) Messages */
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#define MGMT_ERROR_INVALID_TEI_DRAFT 0x00
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#define MGMT_ERROR_INVALID_IFID_DRAFT 0x01
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#define MGMT_ERROR_UNDEFINIED_MSG_DRAFT 0x02
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#define MGMT_ERROR_VERSION_ERR_DRAFT 0x03
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#define MGMT_ERROR_INVALID_STID_DRAFT 0x04
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#define MGMT_ERROR_INVALID_SCNV_DRAFT 0x05
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#define MGMT_ERROR_INVALID_ALI_DRAFT 0x06
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static const value_string draft_error_code_values[] = {
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{ MGMT_ERROR_INVALID_TEI_DRAFT, "Invalid TEI" },
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{ MGMT_ERROR_INVALID_IFID_DRAFT, "Invalid interface ID" },
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{ MGMT_ERROR_UNDEFINIED_MSG_DRAFT, "An unexpected message was received" },
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{ MGMT_ERROR_VERSION_ERR_DRAFT, "The IUA layers are of different version" },
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{ MGMT_ERROR_INVALID_STID_DRAFT, "Invalid SCTP stream identifier" },
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{ MGMT_ERROR_INVALID_SCNV_DRAFT, "Invalid SCN version" },
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{ MGMT_ERROR_INVALID_ALI_DRAFT, "Invalid Adaptation Layer Identifier" },
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{ 0, NULL } };
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#define MGMT_ERROR_MSG_LENGTH_OFFSET PARAMETER_LENGTH_OFFSET
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#define MGMT_ERROR_MSG_HEADER_LENGTH PARAMETER_HEADER_LENGTH
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#define MGMT_ERROR_CODE_LENGTH 4
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static void
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dissect_draft_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree)
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{
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guint16 offset = MGMT_ERROR_MSG_HEADER_LENGTH + tvb_get_ntohs(parameter_tvb, MGMT_ERROR_MSG_LENGTH_OFFSET) + 4;
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proto_tree_add_item(parameter_tree, hf_draft_error_code, parameter_tvb, offset, MGMT_ERROR_CODE_LENGTH, ENC_BIG_ENDIAN);
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offset += MGMT_ERROR_CODE_LENGTH ;
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if( tvb_reported_length_remaining(parameter_tvb,offset) > 0 )
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proto_tree_add_item(parameter_tree, hf_info_string, parameter_tvb, offset, msg_length - offset,ENC_ASCII);
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}
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/*----------------------Error Indication (Draft)-------------------------------*/
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/*----------------------Error Indication (RFC)---------------------------------*/
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/* define Error Code Parameter for Layer Management (MGMT) Messages */
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#define MGMT_ERROR_INVALID_VERSION 0x01
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#define MGMT_ERROR_INVALID_IF_ID 0x02
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#define MGMT_ERROR_UNSUPPORTED_MSG_CLASS 0x03
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#define MGMT_ERROR_UNSUPPORTED_MSG_TYPE 0x04
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#define MGMT_ERROR_UNSUPPORTED_TRAFFIC_HANDLING_MODE 0x05
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#define MGMT_ERROR_UNEXPECTED_MSG 0x06
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#define MGMT_ERROR_PROTOCOL_ERROR 0x07
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#define MGMT_ERROR_UNSUPPORTED_IF_ID_TYPE 0x08
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#define MGMT_ERROR_INVALID_STREAM_ID 0x09
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#define MGMT_ERROR_UNASSIGNED_TEI 0x0a
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#define MGMT_ERROR_UNRECOGNIZED_SAPI 0x0b
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#define MGMT_ERROR_INVALID_TEI_SAPI_COMBINATION 0x0c
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static const value_string error_code_values[] = {
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{ MGMT_ERROR_INVALID_VERSION, "Invalid version" },
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{ MGMT_ERROR_INVALID_IF_ID, "Invalid interface identifier" },
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{ MGMT_ERROR_UNSUPPORTED_MSG_CLASS, "Unsupported message class" },
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{ MGMT_ERROR_UNSUPPORTED_MSG_TYPE, "Unsupported message type" },
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{ MGMT_ERROR_UNSUPPORTED_TRAFFIC_HANDLING_MODE, "Unsupported traffic handling mode" },
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{ MGMT_ERROR_UNEXPECTED_MSG, "Unexpected message" },
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{ MGMT_ERROR_PROTOCOL_ERROR, "Protocol error" },
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{ MGMT_ERROR_UNSUPPORTED_IF_ID_TYPE, "Unsupported interface identifier type" },
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{ MGMT_ERROR_INVALID_STREAM_ID, "Invalid stream identifier" },
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{ MGMT_ERROR_UNASSIGNED_TEI, "Unassigned TEI" },
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{ MGMT_ERROR_UNRECOGNIZED_SAPI, "Unrecognized SAPI" },
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{ MGMT_ERROR_INVALID_TEI_SAPI_COMBINATION, "Invalid TEI/SAPI combination" },
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{ 0, NULL } };
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#define MGMT_ERROR_CODE_OFFSET PARAMETER_VALUE_OFFSET
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static void
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dissect_error_code_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
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{
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proto_tree_add_item(parameter_tree, hf_error_code, parameter_tvb, MGMT_ERROR_CODE_OFFSET, MGMT_ERROR_CODE_LENGTH, ENC_BIG_ENDIAN);
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proto_item_append_text(parameter_item, " (%s)",
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val_to_str_const(tvb_get_ntohl(parameter_tvb, MGMT_ERROR_CODE_OFFSET), error_code_values, "Unknown error code"));
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}
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static void
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dissect_diagnostic_information_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
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{
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guint16 diag_info_length;
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diag_info_length = tvb_get_ntohs(parameter_tvb, MGMT_ERROR_MSG_LENGTH_OFFSET) - MGMT_ERROR_MSG_HEADER_LENGTH;
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proto_tree_add_item(parameter_tree, hf_diagnostic_info, parameter_tvb, PARAMETER_VALUE_OFFSET, diag_info_length, ENC_NA);
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proto_item_append_text(parameter_item, " (%u byte%s)", diag_info_length, plurality(diag_info_length, "", "s"));
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}
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/*----------------------Error Indication (RFC)---------------------------------*/
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/*----------------------Notify (RFC)-------------------------------------------*/
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/* define Status Type parameters for Notify (NTFY) Messages */
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#define NTFY_STATUS_TYPE_AS_STATE_CHANGE 0x01
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#define NTFY_STATUS_TYPE_OTHER 0x02
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static const value_string status_type_values[] = {
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{ NTFY_STATUS_TYPE_AS_STATE_CHANGE, "Application server state change" },
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{ NTFY_STATUS_TYPE_OTHER, "Other" },
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{ 0, NULL } };
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/* define Status Identification parameters for NTFY Messages (AS state change)*/
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#define NTFY_STATUS_IDENT_AS_DOWN 0x01
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#define NTFY_STATUS_IDENT_AS_INACTIVE 0x02
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#define NTFY_STATUS_IDENT_AS_ACTIVE 0x03
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#define NTFY_STATUS_IDENT_AS_PENDING 0x04
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/* define Status Identification parameters for NTFY Messages (Other)*/
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#define NTFY_STATUS_INSUFFICIENT_ASP_RES_ACTIVE 0x01
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#define NTFY_STATUS_ALTERNATE_ASP_ACTIVE 0x02
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static const value_string status_type_id_values[] = {
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{ NTFY_STATUS_TYPE_AS_STATE_CHANGE * 256 * 256 + NTFY_STATUS_IDENT_AS_DOWN, "Application server down" },
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{ NTFY_STATUS_TYPE_AS_STATE_CHANGE * 256 * 256 + NTFY_STATUS_IDENT_AS_INACTIVE, "Application server inactive" },
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{ NTFY_STATUS_TYPE_AS_STATE_CHANGE * 256 * 256 + NTFY_STATUS_IDENT_AS_ACTIVE, "Application server active" },
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{ NTFY_STATUS_TYPE_AS_STATE_CHANGE * 256 * 256 + NTFY_STATUS_IDENT_AS_PENDING, "Application server pending" },
|
|
{ NTFY_STATUS_TYPE_OTHER * 256 * 256 + NTFY_STATUS_INSUFFICIENT_ASP_RES_ACTIVE, "Insufficient ASP resources active in AS" },
|
|
{ NTFY_STATUS_TYPE_OTHER * 256 * 256 + NTFY_STATUS_ALTERNATE_ASP_ACTIVE, "Alternate ASP active" },
|
|
{ 0, NULL } };
|
|
|
|
#define NTFY_STATUS_TYPE_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define NTFY_STATUS_TYPE_LENGTH 2
|
|
#define NTFY_STATUS_IDENT_OFFSET (NTFY_STATUS_TYPE_OFFSET + NTFY_STATUS_TYPE_LENGTH)
|
|
#define NTFY_STATUS_IDENT_LENGTH 2
|
|
|
|
static void
|
|
dissect_status_type_identification_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 status_type, status_id;
|
|
|
|
status_type = tvb_get_ntohs(parameter_tvb, NTFY_STATUS_TYPE_OFFSET);
|
|
status_id = tvb_get_ntohs(parameter_tvb, NTFY_STATUS_IDENT_OFFSET);
|
|
|
|
proto_tree_add_item(parameter_tree, hf_status_type, parameter_tvb, NTFY_STATUS_TYPE_OFFSET, NTFY_STATUS_TYPE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_uint_format_value(parameter_tree, hf_status_id, parameter_tvb, NTFY_STATUS_IDENT_OFFSET, NTFY_STATUS_IDENT_LENGTH,
|
|
status_id, "%u (%s)", status_id,
|
|
val_to_str_const(status_type * 256 * 256 + status_id, status_type_id_values, "unknown"));
|
|
|
|
proto_item_append_text(parameter_item, " (%s)",
|
|
val_to_str_const(status_type * 256 * 256 + status_id, status_type_id_values, "Unknown status information"));
|
|
}
|
|
/*----------------------Notify (RFC)-------------------------------------------*/
|
|
|
|
/*----------------------TEI Status Indication,Confirm (RFC)--------------------*/
|
|
|
|
/* define parameters for TEI Status (Indication,Confirm) Messages */
|
|
#define TEI_STATUS_ASSIGNED 0x0
|
|
#define TEI_STATUS_UNASSIGNED 0x1
|
|
|
|
static const value_string tei_status_values[] = {
|
|
{ TEI_STATUS_ASSIGNED, "TEI is considered assigned by Q.921" },
|
|
{ TEI_STATUS_UNASSIGNED, "TEI is considered unassigned by Q.921" },
|
|
{ 0, NULL } };
|
|
|
|
#define TEI_STATUS_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define TEI_STATUS_LENGTH 4
|
|
|
|
static void
|
|
dissect_tei_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_tei_status, parameter_tvb, TEI_STATUS_OFFSET, TEI_STATUS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)",
|
|
val_to_str_const(tvb_get_ntohl(parameter_tvb, TEI_STATUS_OFFSET), tei_status_values, "Unknown TEI status"));
|
|
}
|
|
/*----------------------TEI Status (RFC)---------------------------------------*/
|
|
|
|
/*----------------------TEI Status Indication,Confirm (Draft)------------------*/
|
|
#define TEI_DRAFT_IN_SERVICE 0x0
|
|
#define TEI_DRAFT_OUT_OF_SERVICE 0x1
|
|
|
|
static const value_string tei_draft_status_values[] = {
|
|
{ TEI_DRAFT_IN_SERVICE, "TEI is in service" },
|
|
{ TEI_DRAFT_OUT_OF_SERVICE,"TEI is out of service" },
|
|
{ 0, NULL } };
|
|
|
|
#define TEI_STATUS_LENGTH_OFFSET PARAMETER_LENGTH_OFFSET
|
|
|
|
static void
|
|
dissect_draft_tei_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
gint offset;
|
|
offset = tvb_get_ntohs(parameter_tvb, TEI_STATUS_LENGTH_OFFSET) + 8;
|
|
if(tvb_reported_length_remaining(parameter_tvb, offset) > 0 ){
|
|
proto_tree_add_item(parameter_tree, hf_tei_draft_status, parameter_tvb, offset, TEI_STATUS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)",
|
|
val_to_str_const(tvb_get_ntohl(parameter_tvb, offset), tei_draft_status_values, "Unknown TEI Status"));
|
|
}
|
|
}
|
|
/*----------------------TEI Status (Draft)-------------------------------------*/
|
|
|
|
/*----------------------ASP Up,Down,Active,Inactive (Draft)--------------------*/
|
|
|
|
static void
|
|
dissect_asp_msg_parameter(packet_info *pinfo, tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
const guint8* str;
|
|
guint16 adaptation_layer_id_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
|
|
|
|
proto_tree_add_item_ret_string(parameter_tree, hf_adaptation_layer_id, parameter_tvb, PARAMETER_VALUE_OFFSET, adaptation_layer_id_length, ENC_ASCII, pinfo->pool, &str);
|
|
proto_item_append_text(parameter_item, " (%s)", str);
|
|
}
|
|
|
|
static void
|
|
dissect_scn_protocol_id_parameter(packet_info *pinfo, tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
const guint8* str;
|
|
guint16 id_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
|
|
proto_tree_add_item_ret_string(parameter_tree, hf_scn_protocol_id, parameter_tvb, PARAMETER_VALUE_OFFSET, id_length, ENC_ASCII, pinfo->pool, &str);
|
|
proto_item_append_text(parameter_item, " (%s)", str);
|
|
}
|
|
|
|
/*----------------------ASP (Draft)--------------------------------------------*/
|
|
|
|
/*----------------------ASP Down + Ack (RFC)--------------------------------*/
|
|
/* define reason parameter for Application Server Process Maintenance (ASPM) Messages */
|
|
#define ASP_REASON_MGMT 1
|
|
|
|
static const value_string asp_reason_values[] = {
|
|
{ ASP_REASON_MGMT, "Management inhibit" },
|
|
{ 0, NULL } };
|
|
|
|
#define ASP_REASON_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define ASP_REASON_LENGTH 4
|
|
|
|
static void
|
|
dissect_asp_reason_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_asp_reason, parameter_tvb, ASP_REASON_OFFSET, ASP_REASON_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)", val_to_str_const(tvb_get_ntohl(parameter_tvb, ASP_REASON_OFFSET), asp_reason_values, "Unknown ASP down reason"));
|
|
}
|
|
|
|
|
|
/*----------------------ASP (RFC)----------------------------------------------*/
|
|
|
|
/*----------------------Heartbeat Data + Ack (RFC)-----------------------------*/
|
|
|
|
#define HEARTBEAT_MSG_LENGTH_OFFSET PARAMETER_LENGTH_OFFSET
|
|
#define HEARTBEAT_DATA_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define HEARTBEAT_MSG_HEADER_LENGTH PARAMETER_HEADER_LENGTH
|
|
|
|
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, HEARTBEAT_MSG_LENGTH_OFFSET) - HEARTBEAT_MSG_HEADER_LENGTH;
|
|
proto_tree_add_item(parameter_tree, hf_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"));
|
|
}
|
|
/*----------------------Heartbeat Data (RFC)-----------------------------------*/
|
|
|
|
|
|
/*----------------------ASP Active,Inactive + Ack (RFC)------------------------*/
|
|
#define OVER_RIDE_TRAFFIC_MODE_TYPE 1
|
|
#define LOAD_SHARE_TRAFFIC_MODE_TYPE 2
|
|
|
|
static const value_string traffic_mode_type_values[] = {
|
|
{ OVER_RIDE_TRAFFIC_MODE_TYPE, "Over-ride" },
|
|
{ LOAD_SHARE_TRAFFIC_MODE_TYPE, "Load-share" },
|
|
{ 0, NULL } };
|
|
|
|
#define TRAFFIC_MODE_TYPE_LENGTH 4
|
|
#define TRAFFIC_MODE_TYPE_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
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_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 traffic mode type"));
|
|
}
|
|
|
|
#define INT_RANGE_START_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define INT_RANGE_LENGTH_OFFSET PARAMETER_LENGTH_OFFSET
|
|
#define INT_RANGE_HEADER_LENGTH PARAMETER_HEADER_LENGTH
|
|
|
|
#define IF_ID_START_OFFSET 0
|
|
#define IF_ID_START_LENGTH 4
|
|
#define IF_ID_END_OFFSET (IF_ID_START_OFFSET + IF_ID_START_LENGTH)
|
|
#define IF_ID_END_LENGTH 4
|
|
#define IF_ID_INTERVAL_LENGTH (IF_ID_START_LENGTH + IF_ID_END_LENGTH)
|
|
|
|
|
|
static void
|
|
dissect_integer_range_interface_identifier_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 number_of_ranges, range_number, offset;
|
|
|
|
number_of_ranges = (tvb_get_ntohs(parameter_tvb, INT_RANGE_LENGTH_OFFSET) - INT_RANGE_HEADER_LENGTH) / IF_ID_INTERVAL_LENGTH;
|
|
offset = INT_RANGE_START_OFFSET;
|
|
for(range_number = 0; range_number < number_of_ranges; range_number++) {
|
|
proto_tree_add_item(parameter_tree, hf_if_range_start, parameter_tvb, offset + IF_ID_START_OFFSET, IF_ID_START_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_if_range_end, parameter_tvb, offset + IF_ID_END_OFFSET, IF_ID_END_LENGTH, ENC_BIG_ENDIAN);
|
|
offset += IF_ID_INTERVAL_LENGTH;
|
|
};
|
|
|
|
proto_item_append_text(parameter_item, " (%u range%s)", number_of_ranges, plurality(number_of_ranges, "", "s"));
|
|
}
|
|
/*----------------------ASP Active,Inactive (RFC)------------------------------*/
|
|
|
|
/*----------------------Data Request,Indication (Draft,RFC)--------------------*/
|
|
|
|
#define DISCRIMINATOR_OFFSET 0
|
|
#define DISCRIMINATOR_LENGTH 1
|
|
#define ADDRESS_OFFSET 1
|
|
#define ADDRESS_LENGTH 1
|
|
#define LOW_ADDRESS_OFFSET 2
|
|
#define LOW_ADDRESS_LENGTH 1
|
|
|
|
#define ALL_ADDRESS_OFFSET 1
|
|
#define ALL_ADDRESS_LENGTH 2
|
|
|
|
#define MSG_TYPE_OFFSET 3
|
|
#define MSG_TYPE_LENGTH 1
|
|
#define MSG_HEADER_LENGTH 4
|
|
#define INFO_ELEMENT_OFFSET 4
|
|
#define INFO_ELEMENT_LENGTH 1
|
|
|
|
static void
|
|
dissect_layer3_message(tvbuff_t *layer3_data_tvb, proto_tree *v5ua_tree,proto_item *parameter_item, packet_info *pinfo)
|
|
{
|
|
guint16 discriminator_offset;
|
|
|
|
if(iua_version == DRAFT){
|
|
discriminator_offset = DISCRIMINATOR_OFFSET;
|
|
}
|
|
else{
|
|
discriminator_offset = DISCRIMINATOR_OFFSET + PARAMETER_HEADER_LENGTH;
|
|
}
|
|
|
|
if (tvb_get_guint8(layer3_data_tvb, discriminator_offset) == 0x48){
|
|
guint16 protocol_data_length;
|
|
tvbuff_t *protocol_data_tvb;
|
|
|
|
protocol_data_length = tvb_get_ntohs(layer3_data_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
|
|
protocol_data_tvb = tvb_new_subset_length(layer3_data_tvb, PARAMETER_VALUE_OFFSET, protocol_data_length);
|
|
|
|
call_dissector(v52_handle, protocol_data_tvb, pinfo, v5ua_tree);
|
|
|
|
proto_item_append_text(parameter_item, " (%u byte%s)", protocol_data_length, plurality(protocol_data_length, "", "s"));
|
|
|
|
}
|
|
else{
|
|
guint16 protocol_data_length;
|
|
tvbuff_t *protocol_data_tvb;
|
|
|
|
protocol_data_length = tvb_get_ntohs(layer3_data_tvb, PARAMETER_LENGTH_OFFSET) - PARAMETER_HEADER_LENGTH;
|
|
protocol_data_tvb = tvb_new_subset_length(layer3_data_tvb, PARAMETER_VALUE_OFFSET, protocol_data_length);
|
|
call_dissector(q931_handle, protocol_data_tvb, pinfo, v5ua_tree);
|
|
|
|
proto_item_append_text(parameter_item, " (%u byte%s)", protocol_data_length, plurality(protocol_data_length, "", "s"));
|
|
}
|
|
}
|
|
|
|
/*----------------------Data Request,Indication (Draft,RFC)------------------------*/
|
|
|
|
/*----------------------Establish Request,Confirm,Indication (Draft,RFC)-------*/
|
|
/*
|
|
* no additional parameter
|
|
*/
|
|
/*----------------------Establish Request,Confirm,Indication (Draft,RFC)-------*/
|
|
|
|
/*----------------------Release Indication, Request (Draft,RFC)----------------*/
|
|
|
|
/* define parameters for Release Request and Indication Messages */
|
|
#define RELEASE_MGMT 0x0
|
|
#define RELEASE_PHYS 0x1
|
|
#define RELEASE_DM 0x2
|
|
#define RELEASE_OTHER 0x3
|
|
|
|
static const value_string release_reason_values[] = {
|
|
{ RELEASE_MGMT, "Management layer generated release" },
|
|
{ RELEASE_PHYS, "Physical layer alarm generated release" },
|
|
{ RELEASE_DM, "Specific to a request" },
|
|
{ RELEASE_OTHER, "Other reason" },
|
|
{ 0, NULL } };
|
|
|
|
#define RELEASE_REASON_LENGTH_OFFSET PARAMETER_LENGTH_OFFSET
|
|
#define RELEASE_REASON_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define RELEASE_REASON_LENGTH 4
|
|
|
|
static void
|
|
dissect_release_reason_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
gint offset = RELEASE_REASON_OFFSET;
|
|
if(iua_version == DRAFT) offset = tvb_get_ntohs(parameter_tvb, RELEASE_REASON_LENGTH_OFFSET)+8;
|
|
proto_tree_add_item(parameter_tree, hf_release_reason, parameter_tvb, offset, RELEASE_REASON_LENGTH, ENC_BIG_ENDIAN);
|
|
if(iua_version != DRAFT)
|
|
proto_item_append_text(parameter_item, " (%s)",
|
|
val_to_str_const(tvb_get_ntohl(parameter_tvb, offset), release_reason_values, "Unknown release reason"));
|
|
}
|
|
/*----------------------Release Indication,Request (Draft,RFC)-----------------*/
|
|
|
|
/*----------------------Link Status Start,Stop Report (Draft,RFC)--------------*/
|
|
/*
|
|
* No additional Parameter
|
|
*/
|
|
/*----------------------Link Status Start,Stop Report (Draft,RFC)--------------*/
|
|
|
|
/*----------------------Link Status Indication (Draft,RFC)---------------------*/
|
|
|
|
/* define parameters for Link Status Indication */
|
|
#define LINK_STATUS_OPERTIONAL 0x0
|
|
#define LINK_STATUS_NON_OPERTIONAL 0x1
|
|
|
|
static const value_string link_status_values[] = {
|
|
{ LINK_STATUS_OPERTIONAL, "Link operational" },
|
|
{ LINK_STATUS_NON_OPERTIONAL, "Link not operational" },
|
|
{ 0, NULL } };
|
|
|
|
#define LINK_STATUS_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define LINK_STATUS_LENGTH 4
|
|
|
|
static void
|
|
dissect_link_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_link_status, parameter_tvb, LINK_STATUS_OFFSET, LINK_STATUS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)",
|
|
val_to_str_const(tvb_get_ntohl(parameter_tvb, LINK_STATUS_OFFSET),link_status_values, "Unknown Link status"));
|
|
|
|
link_status_operational = tvb_get_ntohl(parameter_tvb, LINK_STATUS_OFFSET);
|
|
}
|
|
/*----------------------Link Status Indication (Draft,RFC)---------------------*/
|
|
|
|
/*----------------------Sa-Bit (Draft,RFC)-------------------------------------*/
|
|
|
|
/* define parameter for sa-bit message */
|
|
#define SA_BIT_ID_ZERO 0x0
|
|
#define SA_BIT_ID_ONE 0x1
|
|
#define SA_BIT_VALUE_SA7 0x7
|
|
|
|
static const value_string sa_bit_values[] = {
|
|
{ SA_BIT_ID_ZERO, "set value ZERO" },
|
|
{ SA_BIT_ID_ONE, "set value ONE" },
|
|
{ SA_BIT_VALUE_SA7, "Addresses the Sa7 Bit" },
|
|
{ 0, NULL } };
|
|
|
|
#define SA_BIT_ID_OFFSET PARAMETER_VALUE_OFFSET
|
|
#define SA_BIT_ID_LENGTH 2
|
|
#define SA_BIT_VALUE_OFFSET (SA_BIT_ID_OFFSET + SA_BIT_ID_LENGTH)
|
|
#define SA_BIT_VALUE_LENGTH 2
|
|
|
|
static void
|
|
dissect_sa_bit_status_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_sa_bit_id, parameter_tvb, SA_BIT_ID_OFFSET, SA_BIT_ID_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(parameter_tree, hf_sa_bit_value, parameter_tvb, SA_BIT_VALUE_OFFSET, SA_BIT_VALUE_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s %s)",
|
|
val_to_str_const(tvb_get_ntohs(parameter_tvb, SA_BIT_ID_OFFSET), sa_bit_values, "unknown"),
|
|
val_to_str_const(tvb_get_ntohs(parameter_tvb, SA_BIT_VALUE_OFFSET), sa_bit_values, "unknown Bit"));
|
|
|
|
sa_bit_id = tvb_get_ntohs(parameter_tvb, SA_BIT_VALUE_OFFSET);
|
|
}
|
|
/*----------------------Sa-Bit (Draft,RFC)-------------------------------------*/
|
|
|
|
/*----------------------Error Indication (RFC)---------------------------------*/
|
|
|
|
#define ERROR_REASON_OVERLOAD 0x1
|
|
|
|
static const value_string error_reason_values[] = {
|
|
{ ERROR_REASON_OVERLOAD, "C-Channel is in overload state" },
|
|
{ 0, NULL } };
|
|
|
|
#define ERROR_REASON_LENGTH 4
|
|
#define ERROR_REASON_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_error_indication_parameter(tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
proto_tree_add_item(parameter_tree, hf_error_reason, parameter_tvb, ERROR_REASON_OFFSET, ERROR_REASON_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%s)",
|
|
val_to_str_const(tvb_get_ntohl(parameter_tvb, ERROR_REASON_OFFSET), error_reason_values, "unknown"));
|
|
}
|
|
/*----------------------Error Indication (RFC)---------------------------------*/
|
|
|
|
/*--------------------------ASP identifier-------------------------------------*/
|
|
#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_asp_identifier, parameter_tvb, ASP_IDENTIFIER_OFFSET, ASP_IDENTIFIER_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_item_append_text(parameter_item, " (%d) ",tvb_get_ntohl(parameter_tvb,ASP_IDENTIFIER_OFFSET));
|
|
}
|
|
/*--------------------------ASP identifier-------------------------------------*/
|
|
|
|
#define INFO_STRING_OFFSET PARAMETER_VALUE_OFFSET
|
|
|
|
static void
|
|
dissect_info_string_parameter(packet_info *pinfo, tvbuff_t *parameter_tvb, proto_tree *parameter_tree, proto_item *parameter_item)
|
|
{
|
|
guint16 info_string_length;
|
|
const guint8* str;
|
|
|
|
info_string_length = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET);
|
|
if(iua_version == DRAFT) info_string_length += 4;
|
|
if(info_string_length > 4){
|
|
info_string_length -= PARAMETER_HEADER_LENGTH;
|
|
proto_tree_add_item_ret_string(parameter_tree, hf_info_string, parameter_tvb, INFO_STRING_OFFSET, info_string_length, ENC_ASCII, pinfo->pool, &str);
|
|
proto_item_append_text(parameter_item, " (%s)", str);
|
|
}
|
|
}
|
|
|
|
|
|
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;
|
|
if (parameter_value_length > 0)
|
|
proto_tree_add_item(parameter_tree, hf_parameter_value, parameter_tvb, PARAMETER_VALUE_OFFSET, parameter_value_length, ENC_NA);
|
|
|
|
proto_item_append_text(parameter_item, " with tag %u and %u byte%s value",
|
|
tvb_get_ntohs(parameter_tvb, PARAMETER_TAG_OFFSET), parameter_value_length, plurality(parameter_value_length, "", "s"));
|
|
}
|
|
|
|
#define Reserved_TAG 0x00
|
|
#define INT_INTERFACE_IDENTIFIER_PARAMETER_TAG 0x01
|
|
#define ASP_MSG_PARAMETER_TAG 0x02
|
|
#define TEXT_INTERFACE_IDENTIFIER_PARAMETER_TAG 0x03
|
|
#define INFO_PARAMETER_TAG 0x04
|
|
#define DLCI_PARAMETER_TAG 0x81
|
|
#define DIAGNOSTIC_INFORMATION_PARAMETER_TAG 0x07
|
|
#define INTEGER_RANGE_INTERFACE_IDENTIFIER_PARAMETER_TAG 0x08
|
|
#define HEARTBEAT_DATA_PARAMETER_TAG 0x09
|
|
#define ASP_DOWN_REASON_PARAMETER_TAG 0x0a
|
|
#define TRAFFIC_MODE_TYPE_PARAMETER_TAG 0x0b
|
|
#define ERROR_CODE_PARAMETER_TAG 0x0c
|
|
#define STATUS_TYPE_INDENTIFICATION_PARAMETER_TAG 0x0d
|
|
#define PROTOCOL_DATA_PARAMETER_TAG 0x0e
|
|
#define RELEASE_REASON_PARAMETER_TAG 0x0f
|
|
#define TEI_STATUS_PARAMETER_TAG 0x10
|
|
#define ASP_IDENTIFIER_PARAMETER_TAG 0x11
|
|
#define NOT_USED_IN_IUA_PARAMETER_TAG 0x12
|
|
#define LINK_STATUS_PARAMETER_TAG 0x82
|
|
#define SA_BIT_STATUS_PARAMETER_TAG 0x83
|
|
#define ERROR_INDICATION_PARAMETER_TAG 0x84
|
|
|
|
static const value_string parameter_tag_values[] = {
|
|
{ Reserved_TAG, "Reserved" },
|
|
{ INT_INTERFACE_IDENTIFIER_PARAMETER_TAG, "Interface Identifier (integer)" },
|
|
{ TEXT_INTERFACE_IDENTIFIER_PARAMETER_TAG, "Interface Identifier (text)" },
|
|
{ INFO_PARAMETER_TAG, "Info string" },
|
|
{ DLCI_PARAMETER_TAG, "DLCI" },
|
|
{ DIAGNOSTIC_INFORMATION_PARAMETER_TAG, "Diagnostic information" },
|
|
{ INTEGER_RANGE_INTERFACE_IDENTIFIER_PARAMETER_TAG, "Interface Identifier Range" },
|
|
{ HEARTBEAT_DATA_PARAMETER_TAG, "Hearbeat data" },
|
|
{ ASP_DOWN_REASON_PARAMETER_TAG, "ASP DOWN Reason" },
|
|
{ TRAFFIC_MODE_TYPE_PARAMETER_TAG, "Traffic mode type" },
|
|
{ ERROR_CODE_PARAMETER_TAG, "Error code" },
|
|
{ STATUS_TYPE_INDENTIFICATION_PARAMETER_TAG, "Status type/identification" },
|
|
{ PROTOCOL_DATA_PARAMETER_TAG, "Protocol Data" },
|
|
{ RELEASE_REASON_PARAMETER_TAG, "Release Reason" },
|
|
{ TEI_STATUS_PARAMETER_TAG, "TEI status" },
|
|
{ ASP_IDENTIFIER_PARAMETER_TAG, "ASP Identifier" },
|
|
{ NOT_USED_IN_IUA_PARAMETER_TAG, "Not used in IUA" },
|
|
{ LINK_STATUS_PARAMETER_TAG, "Link status" },
|
|
{ SA_BIT_STATUS_PARAMETER_TAG, "SA-Bit status" },
|
|
{ ERROR_INDICATION_PARAMETER_TAG, "Error reason" },
|
|
{ 0, NULL } };
|
|
|
|
static const value_string parameter_tag_draft_values[] = {
|
|
{ INT_INTERFACE_IDENTIFIER_PARAMETER_TAG, "V5UA Interface Identifier (int)" },
|
|
{ ASP_MSG_PARAMETER_TAG, "ASP Adaption Layer ID" },
|
|
{ TEXT_INTERFACE_IDENTIFIER_PARAMETER_TAG, "SCN Protocol Identifier" },
|
|
{ INFO_PARAMETER_TAG, "Info" },
|
|
{ PROTOCOL_DATA_PARAMETER_TAG, "Protocol Data" },
|
|
{ LINK_STATUS_PARAMETER_TAG, "Link status" },
|
|
{ SA_BIT_STATUS_PARAMETER_TAG, "SA-Bit status" },
|
|
{ ERROR_INDICATION_PARAMETER_TAG, "Error reason" },
|
|
{ 0, NULL } };
|
|
|
|
static void
|
|
dissect_parameter(tvbuff_t *parameter_tvb, packet_info *pinfo, proto_tree *v5ua_tree)
|
|
{
|
|
guint16 tag, length, padding_length;
|
|
proto_item *parameter_item;
|
|
proto_tree *parameter_tree;
|
|
|
|
/* 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);
|
|
/* on IUA-Draft messages the message length not including the message header */
|
|
if((iua_version==DRAFT)&&(tag<=0x4)){
|
|
/* at V5UA Header, length of header and length of DLCI+EFA must be added */
|
|
if(tag==0x1) length += 8;
|
|
/* at ASP message tags only length of header must be added */
|
|
else if(tag<=0x4) length += PARAMETER_HEADER_LENGTH;
|
|
/* for following message-tags are no length information available. Only in common msg header */
|
|
if((msg_class==0 || msg_class==1 || msg_class==9) && msg_type<=10)
|
|
length = msg_length;
|
|
}
|
|
padding_length = tvb_reported_length(parameter_tvb) - length;
|
|
paddingl = padding_length;
|
|
|
|
/* create proto_tree stuff */
|
|
switch(iua_version){
|
|
case RFC:
|
|
parameter_tree = proto_tree_add_subtree(v5ua_tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1, ett_v5ua_parameter, ¶meter_item,
|
|
val_to_str_const(tag, parameter_tag_values, "Unknown parameter"));
|
|
/* add tag to the v5ua tree */
|
|
proto_tree_add_item(parameter_tree, hf_parameter_tag, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, ENC_BIG_ENDIAN);
|
|
break;
|
|
case DRAFT:
|
|
default:
|
|
parameter_tree = proto_tree_add_subtree(v5ua_tree, parameter_tvb, PARAMETER_HEADER_OFFSET, -1, ett_v5ua_parameter, ¶meter_item,
|
|
val_to_str_const(tag, parameter_tag_draft_values, "Unknown parameter"));
|
|
|
|
/* add tag to the v5ua tree */
|
|
proto_tree_add_item(parameter_tree, hf_parameter_tag_draft, parameter_tvb, PARAMETER_TAG_OFFSET, PARAMETER_TAG_LENGTH, ENC_BIG_ENDIAN);
|
|
break;
|
|
};
|
|
|
|
/* add length to the v5ua tree */
|
|
proto_tree_add_item(parameter_tree, hf_parameter_length, parameter_tvb, PARAMETER_LENGTH_OFFSET, PARAMETER_LENGTH_LENGTH, ENC_BIG_ENDIAN);
|
|
|
|
switch(tag) {
|
|
case INT_INTERFACE_IDENTIFIER_PARAMETER_TAG:
|
|
if(iua_version == RFC) dissect_int_interface_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
if(iua_version == DRAFT){
|
|
dissect_int_interface_identifier_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
dissect_dlci_parameter(parameter_tvb, parameter_tree, parameter_item, pinfo);
|
|
|
|
/* for the following parameters no tag- and length-informations available. Parameters must be dissect with info from common msg header */
|
|
if(msg_class==0 && msg_type==0) dissect_draft_error_code_parameter(parameter_tvb, parameter_tree);
|
|
if(msg_class==1) dissect_draft_tei_status_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
if(msg_class==9){
|
|
if(msg_type==1||msg_type==2||msg_type==3||msg_type==4){
|
|
guint16 length_2, offset;
|
|
tvbuff_t *layer3_data_tvb;
|
|
offset = tvb_get_ntohs(parameter_tvb, PARAMETER_LENGTH_OFFSET) + 8;
|
|
length_2 = msg_length - offset;
|
|
if(length_2 > 0){
|
|
if(tvb_get_guint8(parameter_tvb, offset) == 0x48){
|
|
layer3_data_tvb = tvb_new_subset_length(parameter_tvb, offset, length_2);
|
|
dissect_layer3_message(layer3_data_tvb, v5ua_tree, parameter_item, pinfo);
|
|
}
|
|
}
|
|
}
|
|
else if(msg_type==8||msg_type==10) dissect_release_reason_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
}
|
|
}
|
|
break;
|
|
case ASP_MSG_PARAMETER_TAG:
|
|
dissect_asp_msg_parameter(pinfo, parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case TEXT_INTERFACE_IDENTIFIER_PARAMETER_TAG:
|
|
if(iua_version == RFC)
|
|
dissect_text_interface_identifier_parameter(pinfo, parameter_tvb, parameter_tree, parameter_item);
|
|
if(iua_version == DRAFT)
|
|
dissect_scn_protocol_id_parameter(pinfo, parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case INFO_PARAMETER_TAG:
|
|
dissect_info_string_parameter(pinfo, parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case DLCI_PARAMETER_TAG:
|
|
dissect_dlci_parameter(parameter_tvb, parameter_tree, parameter_item, pinfo);
|
|
break;
|
|
case DIAGNOSTIC_INFORMATION_PARAMETER_TAG:
|
|
dissect_diagnostic_information_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case INTEGER_RANGE_INTERFACE_IDENTIFIER_PARAMETER_TAG:
|
|
dissect_integer_range_interface_identifier_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 ASP_DOWN_REASON_PARAMETER_TAG:
|
|
dissect_asp_reason_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_TYPE_INDENTIFICATION_PARAMETER_TAG:
|
|
dissect_status_type_identification_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case PROTOCOL_DATA_PARAMETER_TAG:
|
|
dissect_layer3_message(parameter_tvb, v5ua_tree, parameter_item, pinfo);
|
|
break;
|
|
case RELEASE_REASON_PARAMETER_TAG:
|
|
dissect_release_reason_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case TEI_STATUS_PARAMETER_TAG:
|
|
dissect_tei_status_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 LINK_STATUS_PARAMETER_TAG:
|
|
dissect_link_status_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case SA_BIT_STATUS_PARAMETER_TAG:
|
|
dissect_sa_bit_status_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
case ERROR_INDICATION_PARAMETER_TAG:
|
|
dissect_error_indication_parameter( parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
default:
|
|
dissect_unknown_parameter(parameter_tvb, parameter_tree, parameter_item);
|
|
break;
|
|
};
|
|
|
|
if (padding_length > 0){
|
|
proto_tree_add_item(parameter_tree, hf_parameter_padding, parameter_tvb, PARAMETER_HEADER_OFFSET + length, padding_length, ENC_NA);
|
|
}
|
|
}
|
|
/* dissect the V5UA-Parameters into subsets which are separated by Tag-Length-Header and call up the dissector for the subsets */
|
|
static void
|
|
dissect_parameters(tvbuff_t *parameters_tvb, packet_info *pinfo, proto_tree *tree _U_, proto_tree *v5ua_tree)
|
|
{
|
|
gint tag, offset, length, total_length, remaining_length;
|
|
tvbuff_t *parameter_tvb;
|
|
|
|
|
|
offset = 0;
|
|
while((remaining_length = tvb_reported_length_remaining(parameters_tvb, offset))) {
|
|
tag = tvb_get_ntohs(parameters_tvb, offset + PARAMETER_TAG_OFFSET);
|
|
length = tvb_get_ntohs(parameters_tvb, offset + PARAMETER_LENGTH_OFFSET);
|
|
if(iua_version==DRAFT){
|
|
if(tag==0x1) length += 8; /* V5UA Header */
|
|
else if(tag<=0x4) length += PARAMETER_HEADER_LENGTH; /* ASP MSGs */
|
|
|
|
/* add the parameters which are not separated by tag-length-header to the V5UA header */
|
|
if((msg_class==0 || msg_class==1 || msg_class==9)&&msg_type<=10)
|
|
length = msg_length;
|
|
}
|
|
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);
|
|
dissect_parameter(parameter_tvb, pinfo, v5ua_tree);
|
|
/* get rid of the handled parameter */
|
|
offset += total_length;
|
|
}
|
|
}
|
|
|
|
|
|
/* define the common header fields of V5UA MSG */
|
|
#define COMMON_HEADER_VERSION_LENGTH 1
|
|
#define COMMON_HEADER_RESERVED_LENGTH 1
|
|
#define COMMON_HEADER_MSG_CLASS_LENGTH 1
|
|
#define COMMON_HEADER_MSG_TYPE_LENGTH 1
|
|
#define COMMON_HEADER_MSG_LENGTH_LENGTH 4
|
|
#define COMMON_HEADER_LENGTH (COMMON_HEADER_VERSION_LENGTH + COMMON_HEADER_RESERVED_LENGTH +\
|
|
COMMON_HEADER_MSG_CLASS_LENGTH + COMMON_HEADER_MSG_TYPE_LENGTH +\
|
|
COMMON_HEADER_MSG_LENGTH_LENGTH)
|
|
|
|
/* define the offsets of common header */
|
|
#define COMMON_HEADER_OFFSET 0
|
|
#define COMMON_HEADER_VERSION_OFFSET COMMON_HEADER_OFFSET
|
|
#define COMMON_HEADER_RESERVED_OFFSET (COMMON_HEADER_VERSION_OFFSET + COMMON_HEADER_VERSION_LENGTH)
|
|
#define COMMON_HEADER_MSG_CLASS_OFFSET (COMMON_HEADER_RESERVED_OFFSET + COMMON_HEADER_RESERVED_LENGTH)
|
|
#define COMMON_HEADER_MSG_TYPE_OFFSET (COMMON_HEADER_MSG_CLASS_OFFSET + COMMON_HEADER_MSG_CLASS_LENGTH)
|
|
#define COMMON_HEADER_MSG_LENGTH_OFFSET (COMMON_HEADER_MSG_TYPE_OFFSET + COMMON_HEADER_MSG_TYPE_LENGTH)
|
|
#define COMMON_HEADER_PARAMETERS_OFFSET (COMMON_HEADER_OFFSET + COMMON_HEADER_LENGTH)
|
|
|
|
/* version of V5UA protocol */
|
|
#define V5UA_PROTOCOL_VERSION_RELEASE_1 1
|
|
|
|
static const value_string v5ua_protocol_version_values[] = {
|
|
{ V5UA_PROTOCOL_VERSION_RELEASE_1, "Release 1.0" },
|
|
{ 0, NULL } };
|
|
|
|
/* define V5UA MSGs */
|
|
#define MSG_CLASS_MGMT_MSG 0
|
|
#define MSG_CLASS_MGMT_MSG_DRAFT 1
|
|
#define MSG_CLASS_ASPSM_MSG 3
|
|
#define MSG_CLASS_ASPTM_MSG 4
|
|
#define MSG_CLASS_V5PTM_MSG_DRAFT 9
|
|
#define MSG_CLASS_V5PTM_MSG 14
|
|
|
|
static const value_string msg_class_values[] = {
|
|
{ MSG_CLASS_MGMT_MSG, "Management Messages" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT,"Management Messages"},
|
|
{ MSG_CLASS_ASPSM_MSG, "ASP State Maintenance Message" },
|
|
{ MSG_CLASS_ASPTM_MSG, "ASP Traffic Maintenance Message" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT, "V5 Boundary Primitives Transport Message" },
|
|
{ MSG_CLASS_V5PTM_MSG, "V5 Boundary Primitives Transport Message" },
|
|
{ 0, NULL } };
|
|
|
|
/* message types for MGMT messages */
|
|
#define MGMT_MSG_TYPE_ERR 0
|
|
#define MGMT_MSG_TYPE_NTFY 1
|
|
#define MGMT_MSG_TYPE_TEI_STATUS_REQ 2
|
|
#define MGMT_MSG_TYPE_TEI_STATUS_CON 3
|
|
#define MGMT_MSG_TYPE_TEI_STATUS_IND 4
|
|
#define MGMT_MSG_TYPE_TEI_QUERY_REQUEST5 5
|
|
#define MGMT_MSG_TYPE_TEI_QUERY_REQUEST 8
|
|
/* end */
|
|
|
|
/* MGMT messages for Nortel draft version*/
|
|
#define MGMT_MSG_DRAFT_TYPE_TEI_STATUS_REQ 1
|
|
#define MGMT_MSG_DRAFT_TYPE_TEI_STATUS_CON 2
|
|
#define MGMT_MSG_DRAFT_TYPE_TEI_STATUS_IND 3
|
|
#define MGMT_MSG_DRAFT_TYPE_TEI_QUERY_REQUEST5 5
|
|
#define MGMT_MSG_DRAFT_TYPE_TEI_QUERY_REQUEST 8
|
|
/* end */
|
|
|
|
/* message types for ASPSM messages */
|
|
#define ASPSM_MSG_TYPE_Reserved 0
|
|
#define ASPSM_MSG_TYPE_UP 1
|
|
#define ASPSM_MSG_TYPE_DOWN 2
|
|
#define ASPSM_MSG_TYPE_BEAT 3
|
|
#define ASPSM_MSG_TYPE_UP_ACK 4
|
|
#define ASPSM_MSG_TYPE_DOWN_ACK 5
|
|
#define ASPSM_MSG_TYPE_BEAT_ACK 6
|
|
|
|
/* message types for ASPTM messages */
|
|
#define ASPTM_MSG_TYPE_Reserved 0
|
|
#define ASPTM_MSG_TYPE_ACTIVE 1
|
|
#define ASPTM_MSG_TYPE_INACTIVE 2
|
|
#define ASPTM_MSG_TYPE_ACTIVE_ACK 3
|
|
#define ASPTM_MSG_TYPE_INACTIVE_ACK 4
|
|
|
|
/* message types for V5PTM messages */
|
|
#define V5PTM_MSG_TYPE_Reserved 0
|
|
#define V5PTM_MSG_TYPE_DATA_REQUEST 1
|
|
#define V5PTM_MSG_TYPE_DATA_INDICATION 2
|
|
#define V5PTM_MSG_TYPE_UNIT_DATA_REQUEST 3
|
|
#define V5PTM_MSG_TYPE_UNIT_DATA_INDICATION 4
|
|
#define V5PTM_MSG_TYPE_ESTABLISH_REQUEST 5
|
|
#define V5PTM_MSG_TYPE_ESTABLISH_CONFIRM 6
|
|
#define V5PTM_MSG_TYPE_ESTABLISH_INDICATION 7
|
|
#define V5PTM_MSG_TYPE_RELEASE_REQUEST 8
|
|
#define V5PTM_MSG_TYPE_RELEASE_CONFIRM 9
|
|
#define V5PTM_MSG_TYPE_RELEASE_INDICATION 10
|
|
#define V5PTM_MSG_TYPE_LINK_STATUS_START_REPORTING 11
|
|
#define V5PTM_MSG_TYPE_LINK_STATUS_STOP_REPORTING 12
|
|
#define V5PTM_MSG_TYPE_LINK_STATUS_INDICATION 13
|
|
#define V5PTM_MSG_TYPE_SA_BIT_SET_REQUEST 14
|
|
#define V5PTM_MSG_TYPE_SA_BIT_SET_CONFIRM 15
|
|
#define V5PTM_MSG_TYPE_SA_BIT_STATUS_REQUEST 16
|
|
#define V5PTM_MSG_TYPE_SA_BIT_STATUS_INDICATION 17
|
|
#define V5PTM_MSG_TYPE_ERROR_INDICATION 18
|
|
|
|
#define MGMT_MSG_TYPE_TEI_STATUS_REQUEST5 5
|
|
#define MGMT_MSG_TYPE_TEI_STATUS_REQUEST 8
|
|
|
|
static const value_string msg_class_type_values[] = {
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_ERR, "Error" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_NTFY, "Notify" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_STATUS_REQ, "TEI status request" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_STATUS_CON, "TEI status confirmation" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_STATUS_IND, "TEI status indication" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_QUERY_REQUEST, "TEI query request" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_QUERY_REQUEST5, "TEI query request" },
|
|
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_STATUS_REQ, "TEI status request" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_STATUS_CON, "TEI status confirmation" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_STATUS_IND, "TEI status indication" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_QUERY_REQUEST, "TEI query request" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_QUERY_REQUEST5, "TEI query request" },
|
|
|
|
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_Reserved, "Reserved" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_UP, "ASP up" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_DOWN, "ASP down" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_BEAT, "Heartbeat" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_UP_ACK, "ASP up ack" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_DOWN_ACK, "ASP down ack" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_BEAT_ACK, "Heartbeat ack" },
|
|
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_Reserved , "Reserved" },
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_ACTIVE , "ASP active" },
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_INACTIVE , "ASP inactive" },
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_ACTIVE_ACK , "ASP active ack" },
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_INACTIVE_ACK , "ASP inactive ack" },
|
|
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_Reserved, "Reserved" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_DATA_REQUEST, "Data request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_DATA_INDICATION, "Data indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_UNIT_DATA_REQUEST, "Unit data request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_UNIT_DATA_INDICATION, "Unit data indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_ESTABLISH_REQUEST, "Establish request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_ESTABLISH_CONFIRM, "Establish confirmation" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_ESTABLISH_INDICATION, "Establish indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_RELEASE_REQUEST, "Release request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_RELEASE_CONFIRM, "Release confirmation" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_RELEASE_INDICATION, "Release indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_LINK_STATUS_START_REPORTING,"Link status start reporting" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_LINK_STATUS_STOP_REPORTING, "Link status stop reporting" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_LINK_STATUS_INDICATION, "Link status indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_SA_BIT_SET_REQUEST, "Sa-Bit set request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_SA_BIT_SET_CONFIRM, "Sa-Bit set confirm" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_SA_BIT_STATUS_REQUEST, "Sa-Bit status request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_SA_BIT_STATUS_INDICATION, "Sa-Bit status indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_ERROR_INDICATION, "Error indication" },
|
|
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_Reserved, "Reserved" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_DATA_REQUEST, "Data request" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_DATA_INDICATION, "Data indication" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_UNIT_DATA_REQUEST, "Unit data request" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_UNIT_DATA_INDICATION, "Unit data indication" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_ESTABLISH_REQUEST, "Establish request" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_ESTABLISH_CONFIRM, "Establish confirmation" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_ESTABLISH_INDICATION, "Establish indication" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_RELEASE_REQUEST, "Release request" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_RELEASE_CONFIRM, "Release confirmation" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_RELEASE_INDICATION, "Release indication" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_LINK_STATUS_START_REPORTING,"Link status start reporting" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_LINK_STATUS_STOP_REPORTING, "Link status stop reporting" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_LINK_STATUS_INDICATION, "Link status indication" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_SA_BIT_SET_REQUEST, "Sa-Bit set request" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_SA_BIT_SET_CONFIRM, "Sa-Bit set confirm" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_SA_BIT_STATUS_REQUEST, "Sa-Bit status request" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_SA_BIT_STATUS_INDICATION, "Sa-Bit status indication" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_ERROR_INDICATION, "Error indication" },
|
|
|
|
{ 0, NULL } };
|
|
|
|
static const value_string msg_class_type_values_short[] = {
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_ERR, "Error" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_NTFY, "Notify" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_STATUS_REQ, "TEI status request" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_STATUS_CON, "TEI status confirmation" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_STATUS_IND, "TEI status indication" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_QUERY_REQUEST, "TEI query request" },
|
|
{ MSG_CLASS_MGMT_MSG * 256 + MGMT_MSG_TYPE_TEI_QUERY_REQUEST5, "TEI query request" },
|
|
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_STATUS_REQ, "TEI status request" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_STATUS_CON, "TEI status confirmation" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_STATUS_IND, "TEI status indication" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_QUERY_REQUEST, "TEI query request" },
|
|
{ MSG_CLASS_MGMT_MSG_DRAFT * 256 + MGMT_MSG_DRAFT_TYPE_TEI_QUERY_REQUEST5, "TEI query request" },
|
|
|
|
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_Reserved, "Reserved" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_UP, "ASP up" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_DOWN, "ASP down" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_BEAT, "Heartbeat" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_UP_ACK, "ASP up ack" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_DOWN_ACK, "ASP down ack" },
|
|
{ MSG_CLASS_ASPSM_MSG * 256 + ASPSM_MSG_TYPE_BEAT_ACK, "Heartbeat ack" },
|
|
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_Reserved , "Reserved" },
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_ACTIVE , "ASP active" },
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_INACTIVE , "ASP inactive" },
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_ACTIVE_ACK , "ASP active ack" },
|
|
{ MSG_CLASS_ASPTM_MSG * 256 + ASPTM_MSG_TYPE_INACTIVE_ACK , "ASP inactive ack" },
|
|
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_Reserved, "Reserved" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_DATA_REQUEST, "Data request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_DATA_INDICATION, "Data indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_UNIT_DATA_REQUEST, "Unit data request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_UNIT_DATA_INDICATION, "Unit data indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_ESTABLISH_REQUEST, "Establish request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_ESTABLISH_CONFIRM, "Establish confirmation" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_ESTABLISH_INDICATION, "Establish indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_RELEASE_REQUEST, "Release request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_RELEASE_CONFIRM, "Release confirmation" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_RELEASE_INDICATION, "Release indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_LINK_STATUS_START_REPORTING,"Link status start reporting" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_LINK_STATUS_STOP_REPORTING, "Link status stop reporting" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_LINK_STATUS_INDICATION, "Link status indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_SA_BIT_SET_REQUEST, "Sa-Bit set request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_SA_BIT_SET_CONFIRM, "Sa-Bit set confirm" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_SA_BIT_STATUS_REQUEST, "Sa-Bit status request" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_SA_BIT_STATUS_INDICATION, "Sa-Bit status indication" },
|
|
{ MSG_CLASS_V5PTM_MSG_DRAFT * 256 + V5PTM_MSG_TYPE_ERROR_INDICATION, "Error indication" },
|
|
|
|
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_Reserved, "Reserved" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_DATA_REQUEST, "Data Req" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_DATA_INDICATION, "Data Ind" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_UNIT_DATA_REQUEST, "U Data Req" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_UNIT_DATA_INDICATION, "U Data Ind" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_ESTABLISH_REQUEST, "Est Req" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_ESTABLISH_CONFIRM, "Est Conf" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_ESTABLISH_INDICATION, "Est Ind" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_RELEASE_REQUEST, "Rel Req" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_RELEASE_CONFIRM, "Rel Con" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_RELEASE_INDICATION, "Rel Ind" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_LINK_STATUS_START_REPORTING,"Link Status Start Rep" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_LINK_STATUS_STOP_REPORTING, "Link Status Stop Rep" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_LINK_STATUS_INDICATION, "Link Status Ind" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_SA_BIT_SET_REQUEST, "Sa-Bit Set Req" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_SA_BIT_SET_CONFIRM, "Sa-Bit set Conf" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_SA_BIT_STATUS_REQUEST, "Sa-Bit Status Req" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_SA_BIT_STATUS_INDICATION, "Sa-Bit Status Ind" },
|
|
{ MSG_CLASS_V5PTM_MSG * 256 + V5PTM_MSG_TYPE_ERROR_INDICATION, "Error Ind" },
|
|
{ 0, NULL } };
|
|
|
|
|
|
static void
|
|
dissect_common_header(tvbuff_t *common_header_tvb, packet_info *pinfo, proto_tree *v5ua_tree)
|
|
{
|
|
proto_item *common_header_item;
|
|
proto_tree *common_header_tree;
|
|
|
|
guint8 message_class, message_type;
|
|
|
|
message_class = tvb_get_guint8(common_header_tvb, COMMON_HEADER_MSG_CLASS_OFFSET);
|
|
message_type = tvb_get_guint8(common_header_tvb, COMMON_HEADER_MSG_TYPE_OFFSET);
|
|
|
|
/* Add message type into info column */
|
|
col_set_str(pinfo->cinfo, COL_INFO, val_to_str_const(message_class * 256 + message_type, msg_class_type_values_short, "UNKNOWN"));
|
|
|
|
|
|
if (v5ua_tree) {
|
|
|
|
/* create proto_tree stuff */
|
|
common_header_tree = proto_tree_add_subtree(v5ua_tree, common_header_tvb, COMMON_HEADER_OFFSET, -1,
|
|
ett_v5ua_common_header, &common_header_item, "Common Msg-Header");
|
|
|
|
/* add the components of the common header to the protocol tree */
|
|
proto_tree_add_item(common_header_tree, hf_version, common_header_tvb, COMMON_HEADER_VERSION_OFFSET, COMMON_HEADER_VERSION_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(common_header_tree, hf_reserved, common_header_tvb, COMMON_HEADER_RESERVED_OFFSET, COMMON_HEADER_RESERVED_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_item(common_header_tree, hf_msg_class, common_header_tvb, COMMON_HEADER_MSG_CLASS_OFFSET, COMMON_HEADER_MSG_CLASS_LENGTH, ENC_BIG_ENDIAN);
|
|
proto_tree_add_uint_format_value(common_header_tree, hf_msg_type,
|
|
common_header_tvb, COMMON_HEADER_MSG_TYPE_OFFSET, COMMON_HEADER_MSG_TYPE_LENGTH,
|
|
message_type, "%s ( %u )",
|
|
val_to_str_const(message_class * 256 + message_type, msg_class_type_values, "reserved"), message_type);
|
|
proto_tree_add_item(common_header_tree, hf_msg_length, common_header_tvb, COMMON_HEADER_MSG_LENGTH_OFFSET, COMMON_HEADER_MSG_LENGTH_LENGTH, ENC_BIG_ENDIAN);
|
|
|
|
/* Add message type to the Common Msg-Header line */
|
|
proto_item_append_text(common_header_item, " (%s)",val_to_str_const(message_class * 256 + message_type, msg_class_type_values, "Unknown Msg-Type"));
|
|
messageclassCopy = message_class;
|
|
}
|
|
|
|
/* the following info are required to dissect IUA-Draft messages.
|
|
In the DRAFT-Specification V5UA-Parameters are not separated by Tag-Length-Header (as defined in RFC-Spec) */
|
|
if (iua_version == DRAFT){
|
|
msg_class = message_class;
|
|
msg_type = message_type;
|
|
msg_length = tvb_get_ntohl (common_header_tvb, COMMON_HEADER_MSG_LENGTH_OFFSET);
|
|
}
|
|
}
|
|
|
|
/* dissect the V5UA-packet in two subsets: Common Msg-Header (used by all msgs) and V5UA-parameter */
|
|
static void
|
|
dissect_v5ua_message(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, proto_tree *v5ua_tree)
|
|
{
|
|
tvbuff_t *common_header_tvb, *parameters_tvb;
|
|
|
|
common_header_tvb = tvb_new_subset_length(tvb, COMMON_HEADER_OFFSET, COMMON_HEADER_LENGTH);
|
|
dissect_common_header(common_header_tvb, pinfo, v5ua_tree);
|
|
|
|
parameters_tvb = tvb_new_subset_remaining(tvb, COMMON_HEADER_LENGTH);
|
|
dissect_parameters(parameters_tvb, pinfo, tree, v5ua_tree);
|
|
if (dlci_efa >= 0 && dlci_efa <= 8175) {
|
|
if ((messageclassCopy == 0) || (messageclassCopy == 3) || (messageclassCopy == 4)) {
|
|
messageclassCopy = -1;
|
|
}
|
|
else {
|
|
col_append_str(pinfo->cinfo, COL_INFO, " | ");
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "LinkId: %u", linkIdentifier);
|
|
}
|
|
}
|
|
|
|
if (sa_bit_id > -1) {
|
|
col_append_str(pinfo->cinfo, COL_INFO, " | ");
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, "SA7bit: %u", sa_bit_id);
|
|
sa_bit_id = -1;
|
|
}
|
|
|
|
if (link_status_operational > -1) {
|
|
if (link_status_operational == 0) {
|
|
col_append_str(pinfo->cinfo, COL_INFO, " | operational");
|
|
}
|
|
else if (link_status_operational == 1) {
|
|
col_append_str(pinfo->cinfo, COL_INFO, " | non-operational");
|
|
}
|
|
link_status_operational = -1;
|
|
}
|
|
|
|
}
|
|
|
|
static int
|
|
dissect_v5ua(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void* data _U_)
|
|
{
|
|
gint offset, remaining_length, length, tag, one_bit;
|
|
|
|
|
|
/* Set up structures needed to add the protocol subtree and manage it */
|
|
proto_tree *v5ua_tree;
|
|
proto_item *ti;
|
|
|
|
/* Make entries in Protocol column and Info column on summary display */
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "V5UA");
|
|
/* end */
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
|
|
/* create display subtree for the protocol */
|
|
ti = proto_tree_add_item(tree, proto_v5ua, tvb, 0, -1, ENC_NA);
|
|
v5ua_tree = proto_item_add_subtree(ti, ett_v5ua);
|
|
|
|
/* detect version of IUA */
|
|
iua_version = RFC;
|
|
offset = COMMON_HEADER_LENGTH;
|
|
|
|
remaining_length = tvb_reported_length_remaining(tvb, offset);
|
|
|
|
while(remaining_length) {
|
|
tag = tvb_get_ntohs(tvb, offset);
|
|
/*0x01,0x03: Inerface Id (draft&RFC)*/
|
|
if(tag==0x1){
|
|
length = tvb_get_ntohs(tvb, offset+2);
|
|
tag = tvb_get_ntohs(tvb, offset+length);
|
|
/* tag 0x5 indicates the DLCI in the V5UA-Header accoriding to RFC spec */
|
|
if(tag==0x81){
|
|
remaining_length = FALSE;
|
|
}
|
|
else{
|
|
one_bit = tvb_get_guint8(tvb, offset+4+length+1);
|
|
/* no indication from DLCI by tag (in the V5UA-Header according DRAFT).
|
|
Thus the ONE-Bit within DLCI have to compare */
|
|
if((one_bit & 0x01) == 0x01){
|
|
iua_version = DRAFT;
|
|
remaining_length = FALSE;
|
|
}
|
|
/* an indication to incorrect bit in DLCI.
|
|
Must be include to decode an incorrect implemented message on Nortels PVG*/
|
|
else{
|
|
proto_item_append_text(v5ua_tree, " !! DLCI INCORRECT !!");
|
|
|
|
iua_version = DRAFT;
|
|
remaining_length = FALSE;
|
|
}
|
|
}
|
|
}
|
|
/*0x02: AL Id (draft) following after common msg header without V5UA header*/
|
|
else if(tag==0x02){
|
|
iua_version = DRAFT;
|
|
remaining_length = FALSE;
|
|
}
|
|
/*0x03: Text formatted IId SHALL not be supported by draft*/
|
|
else if(tag==0x03){
|
|
iua_version = RFC;
|
|
remaining_length = FALSE;
|
|
}
|
|
else if(tag==0x11){
|
|
remaining_length = FALSE;
|
|
}
|
|
/*ASP, Notify and Error messages (RFC) only contain common msg header followed by parameter*/
|
|
else if(tag==0x04 || tag == 0x0a || tag == 0x0b || tag == 0x0c || tag == 0x0d){
|
|
remaining_length = FALSE;
|
|
}
|
|
else{
|
|
offset+=2;
|
|
remaining_length = tvb_reported_length_remaining(tvb, offset);
|
|
}
|
|
/* add a notice for the draft version */
|
|
if(iua_version == DRAFT){
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "V5UA (draft)");
|
|
}
|
|
}
|
|
|
|
/* dissect the message */
|
|
dissect_v5ua_message(tvb, pinfo, tree, v5ua_tree);
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
|
|
/* Register the protocol with Wireshark */
|
|
|
|
/* this format is require because a script is used to build the C function
|
|
that calls all the protocol registration. */
|
|
|
|
void
|
|
proto_register_v5ua(void)
|
|
{
|
|
|
|
/* Setup list of header fields */
|
|
static hf_register_info hf[] = {
|
|
{ &hf_version,
|
|
{ "Version", "v5ua.version",
|
|
FT_UINT8, BASE_DEC, VALS(v5ua_protocol_version_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_reserved,
|
|
{ "Reserved", "v5ua.reserved",
|
|
FT_UINT8, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_msg_class,
|
|
{ "Message class", "v5ua.msg_class",
|
|
FT_UINT8, BASE_DEC, VALS(msg_class_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_msg_type,
|
|
{ "Message Type", "v5ua.msg_type",
|
|
FT_UINT8, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL } },
|
|
#if 0
|
|
{ &hf_msg_type_id,
|
|
{ "Message Type ID", "v5ua.msg_type_id",
|
|
FT_UINT8, BASE_DEC, VALS(msg_class_type_values), 0x0,
|
|
NULL, HFILL } },
|
|
#endif
|
|
{ &hf_msg_length,
|
|
{ "Message length", "v5ua.msg_length",
|
|
FT_UINT32, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_link_id,
|
|
{ "Link Identifier", "v5ua.link_id",
|
|
FT_UINT32, BASE_DEC, NULL, 0xffffffe0,
|
|
NULL, HFILL } },
|
|
{ &hf_chnl_id,
|
|
{ "Channel Identifier", "v5ua.channel_id",
|
|
FT_UINT8, BASE_DEC, NULL, 0x1f,
|
|
NULL, HFILL } },
|
|
|
|
{ &hf_adaptation_layer_id,
|
|
{ "Adaptation Layer ID", "v5ua.adaptation_layer_id",
|
|
FT_STRING, BASE_NONE,NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_text_if_id,
|
|
{ "Text interface identifier","v5ua.text_interface_id",
|
|
FT_STRING, BASE_NONE,NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_scn_protocol_id,
|
|
{ "SCN Protocol Identifier","v5ua.scn_protocol_id",
|
|
FT_STRING, BASE_NONE,NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_info_string,
|
|
{ "Info String", "v5ua.info_string",
|
|
FT_STRING, BASE_NONE,NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_asp_identifier,
|
|
{ "ASP Identifier", "v5ua.asp_identifier",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_dlci_zero_bit,
|
|
{ "Zero bit", "v5ua.dlci_zero_bit",
|
|
FT_BOOLEAN, 8, NULL, 0x01,
|
|
NULL, HFILL } },
|
|
{ &hf_dlci_spare_bit,
|
|
{ "Spare bit", "v5ua.dlci_spare_bit",
|
|
FT_BOOLEAN, 8, NULL, 0x02,
|
|
NULL, HFILL } },
|
|
{ &hf_dlci_sapi,
|
|
{ "SAPI", "v5ua.dlci_sapi",
|
|
FT_UINT8, BASE_HEX, NULL, 0xfc,
|
|
NULL, HFILL } },
|
|
{ &hf_dlci_one_bit,
|
|
{ "One bit", "v5ua.dlci_one_bit",
|
|
FT_BOOLEAN, 8, NULL, 0x01,
|
|
NULL, HFILL } },
|
|
{ &hf_dlci_tei,
|
|
{ "TEI", "v5ua.dlci_tei",
|
|
FT_UINT8, BASE_HEX, NULL, 0xfe,
|
|
NULL, HFILL } },
|
|
{ &hf_efa,
|
|
{ "Envelope Function Address","v5ua.efa",
|
|
FT_UINT16, BASE_DEC, VALS(efa_values), 0x0,
|
|
NULL, HFILL } },
|
|
#if 0
|
|
{ &hf_spare_efa,
|
|
{ "Envelope Function Address (spare)","v5ua.efa",
|
|
FT_UINT16, BASE_DEC, NULL, ~7,
|
|
NULL, HFILL } },
|
|
#endif
|
|
{ &hf_asp_reason,
|
|
{ "Reason", "v5ua.asp_reason",
|
|
FT_UINT32, BASE_HEX, VALS(asp_reason_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_release_reason,
|
|
{ "Release Reason", "v5ua.release_reason",
|
|
FT_UINT32, BASE_HEX, VALS(release_reason_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_tei_status,
|
|
{ "TEI status", "v5ua.tei_status",
|
|
FT_UINT32, BASE_HEX, VALS(tei_status_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_tei_draft_status,
|
|
{ "TEI status", "v5ua.tei_draft_status",
|
|
FT_UINT32, BASE_HEX, VALS(tei_draft_status_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_link_status,
|
|
{ "Link Status", "v5ua.link_status",
|
|
FT_UINT32, BASE_HEX, VALS(link_status_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_sa_bit_id,
|
|
{ "BIT ID", "v5ua.sa_bit_id",
|
|
FT_UINT16, BASE_HEX, VALS(sa_bit_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_sa_bit_value,
|
|
{ "Bit Value", "v5ua.sa_bit_value",
|
|
FT_UINT16, BASE_HEX, VALS(sa_bit_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_parameter_tag,
|
|
{ "Parameter Tag", "v5ua.parameter_tag",
|
|
FT_UINT16, BASE_HEX, VALS(parameter_tag_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_parameter_tag_draft,
|
|
{ "Parameter Tag", "v5ua.parameter_tag",
|
|
FT_UINT16, BASE_HEX, VALS(parameter_tag_draft_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_parameter_length,
|
|
{ "Parameter length", "v5ua.parameter_length",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_parameter_value,
|
|
{ "Parameter value", "v5ua.parameter_value",
|
|
FT_BYTES, BASE_NONE,NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_parameter_padding,
|
|
{ "Parameter padding", "v5ua.parameter_padding",
|
|
FT_BYTES, BASE_NONE,NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_diagnostic_info,
|
|
{ "Diagnostic Information", "v5ua.diagnostic_info",
|
|
FT_BYTES, BASE_NONE,NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_if_range_start,
|
|
{ "Interface range Start", "v5ua.interface_range_start",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_if_range_end,
|
|
{ "Interface range End", "v5ua.interface_range_end",
|
|
FT_UINT32, BASE_HEX, NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_heartbeat_data,
|
|
{ "Heartbeat data", "v5ua.heartbeat_data",
|
|
FT_BYTES, BASE_NONE,NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_traffic_mode_type,
|
|
{ "Traffic mode type", "v5ua.traffic_mode_type",
|
|
FT_UINT32, BASE_HEX, VALS(traffic_mode_type_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_error_code,
|
|
{ "Error code", "v5ua.error_code",
|
|
FT_UINT32, BASE_HEX, VALS(error_code_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_draft_error_code,
|
|
{ "Error code (draft)", "v5ua.draft_error_code",
|
|
FT_UINT32, BASE_HEX, VALS(draft_error_code_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_status_type,
|
|
{ "Status type", "v5ua.status_type",
|
|
FT_UINT16, BASE_DEC, VALS(status_type_values), 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_status_id,
|
|
{ "Status identification", "v5ua.status_id",
|
|
FT_UINT16, BASE_DEC, NULL, 0x0,
|
|
NULL, HFILL } },
|
|
{ &hf_error_reason,
|
|
{ "Error Reason", "v5ua.error_reason",
|
|
FT_UINT32, BASE_HEX, VALS(error_reason_values), 0x0,
|
|
NULL, HFILL } }
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_v5ua,
|
|
&ett_v5ua_common_header,
|
|
&ett_v5ua_parameter,
|
|
&ett_v5ua_layer3
|
|
};
|
|
|
|
/* Register the protocol name and description */
|
|
proto_v5ua = proto_register_protocol("V5.2-User Adaptation Layer", "V5UA", "v5ua");
|
|
|
|
/* Required function calls to register the header fields and subtrees used */
|
|
proto_register_field_array(proto_v5ua, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
|
|
/* In RFC specification the SCTP registered User Port Number Assignment for V5UA is 5675 */
|
|
#define SCTP_PORT_V5UA_RFC 5675
|
|
#define SCTP_PORT_V5UA_DRAFT 10001
|
|
|
|
void
|
|
proto_reg_handoff_v5ua(void)
|
|
{
|
|
dissector_handle_t v5ua_handle;
|
|
|
|
v5ua_handle = create_dissector_handle(dissect_v5ua, proto_v5ua);
|
|
q931_handle = find_dissector_add_dependency("q931", proto_v5ua);
|
|
v52_handle = find_dissector_add_dependency("v52", proto_v5ua);
|
|
|
|
dissector_add_uint("sctp.port", SCTP_PORT_V5UA_DRAFT, v5ua_handle);
|
|
dissector_add_uint("sctp.port", SCTP_PORT_V5UA_RFC, v5ua_handle);
|
|
dissector_add_uint("sctp.ppi", V5UA_PAYLOAD_PROTOCOL_ID, v5ua_handle);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
|
*
|
|
* Local variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|