2013-09-05 05:26:04 +00:00
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/* Do not modify this file. Changes will be overwritten. */
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/* Generated automatically by the ASN.1 to Wireshark dissector compiler */
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/* packet-atn-ulcs.c */
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2016-03-09 03:17:51 +00:00
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/* asn2wrs.py -u -L -p atn-ulcs -c ./atn-ulcs.cnf -s ./packet-atn-ulcs-template -D . -O ../.. atn-ulcs.asn */
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2013-09-05 05:26:04 +00:00
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/* Input file: packet-atn-ulcs-template.c */
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2016-03-09 03:17:51 +00:00
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#line 1 "./asn1/atn-ulcs/packet-atn-ulcs-template.c"
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2013-09-05 05:26:04 +00:00
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/* packet-atn-ulcs.c
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* By Mathias Guettler <guettler@web.de>
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* Copyright 2013
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*
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* Routines for ATN upper layer
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* protocol packet disassembly
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* ATN upper layers are embedded within OSI Layer 4 (COTP).
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*
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* ATN upper layers contain:
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* Session Layer (NUL protocol option)
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* Presentation Layer (NUL protocol option)
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* ATN upper Layer/Application (ACSE PDU or PDV-list PDU)
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* ATN applications protocols (i.e. CM or CPDLC) are contained within
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* ACSE user-information or PDV presentation data.
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* details see:
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* http://en.wikipedia.org/wiki/CPDLC
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* http://members.optusnet.com.au/~cjr/introduction.htm
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2013-09-07 22:12:24 +00:00
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2013-09-05 05:26:04 +00:00
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* standards:
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* http://legacy.icao.int/anb/panels/acp/repository.cfm
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* note:
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* We are dealing with ATN/ULCS aka ICAO Doc 9705 Ed2 here
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* (don't think there is an ULCS equivalent for "FANS-1/A ").
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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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2018-02-12 11:23:27 +00:00
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* SPDX-License-Identifier: GPL-2.0-or-later
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2013-09-05 05:26:04 +00:00
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*/
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/*
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2015-08-09 16:20:54 +00:00
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developer comments:
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2013-09-05 05:26:04 +00:00
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why not using existing ses, pres and acse dissectors ?
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2015-08-09 16:20:54 +00:00
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ATN upper layers are derived from OSI standards for session,
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presentation and application but the encoding differs
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(it's PER instead of BER encoding to save bandwith).
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Session and presentation use the "null" encoding option,
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meaning that they are only present at connection establishment
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and ommitted otherwise.
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Instead of adapting existing dissectors it seemed simpler and cleaner
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to implement everything the new atn-ulcs dissector.
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2014-02-26 19:29:17 +00:00
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2013-09-05 05:26:04 +00:00
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why using conversations ?
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2015-08-09 16:20:54 +00:00
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PER encoded user data is ambigous; the same encoding may apply to a CM or
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CPDLC PDU. The workaround is to decode on a transport connection basis.
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I use my own version of conversations to identify
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the transport connection the PDU belongs to for the standard functions
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from "conversation.h" didn't work out.
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2013-09-05 05:26:04 +00:00
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what is the use of AARQ/AARE data ?
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2015-08-09 16:20:54 +00:00
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Converstions should be maintained on the COTP layer in a standard way
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for there are usually more packets available than in the layers above.
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In the worst case my dissector is called from a DT packet which
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has destination references but no source reference.
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I have to guess the reference used the other way round
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(curently I am using ACSE PDU'S used during OSI connection establishment for that).
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The idea is that each ACSE AARQ is answered by ACSE AARE and having this sequence
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I have all the source/destination references for this transport connection.
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I use AARQ/AARE data to store the source/destination reference of AARQ as well
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as the optional ae-qualifier which tells me the application and
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the dissector I have to use.
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This approach donesn't work well when there are interleaving AARQ/AARE sequences for
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the same aircraft.
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2013-09-05 05:26:04 +00:00
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which ATN standard is supported ?
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2015-08-09 16:20:54 +00:00
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The dissector has been tested with ICAO doc9705 Edition2 compliant traffic.
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No ATN Secutity is supported.
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note:
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The ATN upper layers are derived from OSI standards (ICAO DOC 9705)
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while ATN/IPS (ICAO DOC 9896) which is entirely based on IPV6.
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2014-02-26 19:29:17 +00:00
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2013-09-05 05:26:04 +00:00
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*/
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/*
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known defects/deficiencies:
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2015-08-09 16:20:54 +00:00
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- user-information within AARE is sometines not decoded due to an unset flag
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(the field is optional). As far as I can tell asn2wrs is right here,
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but on the other hand I know that in all of this cases user-information
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is present and is processed by the ATN end system.
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Maybe a true ATN expert may help me out here.
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2013-09-05 05:26:04 +00:00
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2015-08-09 16:20:54 +00:00
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- The conversation handling is based on src/dst addresses as well as
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source or destination references depending on the TP4 packet type.
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This means that after some time these references get reused for
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new conversations. This almost certain happens for traces longer
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than one day rendering this dissector unsuitable for captures exceeding
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this one day.
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2014-02-26 19:29:17 +00:00
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2013-09-05 05:26:04 +00:00
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*/
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#include "config.h"
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2014-05-27 11:13:37 +00:00
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#ifndef _MSC_VER
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2014-03-17 09:39:42 +00:00
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#include <stdint.h>
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2014-05-27 11:13:37 +00:00
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#endif
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2013-09-05 05:26:04 +00:00
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2014-12-23 05:32:58 +00:00
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#include <epan/packet.h>
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#include <epan/address.h>
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#include <epan/conversation.h>
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2015-02-08 03:15:55 +00:00
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#include <epan/osi-utils.h>
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2014-12-23 05:32:58 +00:00
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#include "packet-ber.h"
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#include "packet-per.h"
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2013-09-05 05:26:04 +00:00
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#include "packet-atn-ulcs.h"
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#define ATN_ACSE_PROTO "ICAO Doc9705 ULCS ACSE (ISO 8649/8650-1:1996)"
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#define ATN_ULCS_PROTO "ICAO Doc9705 ULCS"
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2013-12-10 06:01:16 +00:00
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void proto_register_atn_ulcs(void);
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void proto_reg_handoff_atn_ulcs(void);
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2013-09-05 05:26:04 +00:00
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static heur_dissector_list_t atn_ulcs_heur_subdissector_list;
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/* presentation subdissectors i.e. CM, CPDLC */
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static dissector_handle_t atn_cm_handle = NULL;
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static dissector_handle_t atn_cpdlc_handle = NULL;
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static int proto_atn_ulcs = -1;
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static guint32 ulcs_context_value = 0;
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static const char *object_identifier_id;
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2013-09-05 12:13:00 +00:00
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static wmem_tree_t *aarq_data_tree = NULL;
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static wmem_tree_t *atn_conversation_tree = NULL;
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2013-09-05 05:26:04 +00:00
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static proto_tree *root_tree = NULL;
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/* forward declarations for functions generated from asn1 */
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static int dissect_atn_ulcs_T_externalt_encoding_single_asn1_type(
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2015-08-09 16:20:54 +00:00
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tvbuff_t *tvb _U_,
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int offset _U_,
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asn1_ctx_t *actx _U_,
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proto_tree *tree _U_,
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int hf_index
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_U_);
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2013-09-05 05:26:04 +00:00
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static int dissect_atn_ulcs_T_externalt_encoding_octet_aligned(
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2015-08-09 16:20:54 +00:00
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tvbuff_t *tvb _U_,
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int offset _U_,
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asn1_ctx_t *actx _U_,
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proto_tree *tree _U_,
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int hf_index _U_);
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2013-09-05 05:26:04 +00:00
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static int dissect_atn_ulcs_T_externalt_encoding_arbitrary(
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2015-08-09 16:20:54 +00:00
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tvbuff_t *tvb _U_,
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int offset _U_,
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asn1_ctx_t *actx _U_,
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proto_tree *tree _U_,
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int hf_index _U_);
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2014-02-26 19:29:17 +00:00
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2014-10-06 13:31:47 +00:00
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static int dissect_ACSE_apdu_PDU(
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2015-08-09 16:20:54 +00:00
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tvbuff_t *tvb _U_,
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packet_info *pinfo _U_,
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proto_tree *tree _U_,
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void *data _U_);
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2014-02-26 19:29:17 +00:00
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2013-09-05 05:26:04 +00:00
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guint32 dissect_per_object_descriptor_t(
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2015-08-09 16:20:54 +00:00
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tvbuff_t *tvb,
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guint32 offset,
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asn1_ctx_t *actx,
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proto_tree *tree,
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int hf_index,
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tvbuff_t **value_tvb);
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2013-09-05 05:26:04 +00:00
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2015-08-09 16:20:54 +00:00
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static gint dissect_atn_ulcs(
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tvbuff_t *tvb,
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packet_info *pinfo,
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proto_tree *tree,
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void *data _U_);
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2013-09-05 05:26:04 +00:00
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/*--- Included file: packet-atn-ulcs-hf.c ---*/
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2016-03-09 03:17:51 +00:00
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#line 1 "./asn1/atn-ulcs/packet-atn-ulcs-hf.c"
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2013-09-05 05:26:04 +00:00
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static int hf_atn_ulcs_Fully_encoded_data_PDU = -1; /* Fully_encoded_data */
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static int hf_atn_ulcs_ACSE_apdu_PDU = -1; /* ACSE_apdu */
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static int hf_atn_ulcs_Fully_encoded_data_item = -1; /* PDV_list */
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static int hf_atn_ulcs_transfer_syntax_name = -1; /* Transfer_syntax_name */
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static int hf_atn_ulcs_presentation_context_identifier = -1; /* Presentation_context_identifier */
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static int hf_atn_ulcs_presentation_data_values = -1; /* T_presentation_data_values */
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static int hf_atn_ulcs_pdv_list_presentation_data_values_single_asn1_type = -1; /* T_pdv_list_presentation_data_values_single_asn1_type */
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static int hf_atn_ulcs_octet_aligned = -1; /* OCTET_STRING */
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static int hf_atn_ulcs_pdv_list_presentation_data_values_arbitrary = -1; /* T_pdv_list_presentation_data_values_arbitrary */
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static int hf_atn_ulcs_direct_reference = -1; /* OBJECT_IDENTIFIER */
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static int hf_atn_ulcs_indirect_reference = -1; /* INTEGER */
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static int hf_atn_ulcs_data_value_descriptor = -1; /* T_data_value_descriptor */
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static int hf_atn_ulcs_encoding = -1; /* T_encoding */
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static int hf_atn_ulcs_externalt_encoding_single_asn1_type = -1; /* T_externalt_encoding_single_asn1_type */
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static int hf_atn_ulcs_externalt_encoding_octet_aligned = -1; /* T_externalt_encoding_octet_aligned */
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static int hf_atn_ulcs_externalt_encoding_arbitrary = -1; /* T_externalt_encoding_arbitrary */
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static int hf_atn_ulcs_aarq = -1; /* AARQ_apdu */
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static int hf_atn_ulcs_aare = -1; /* AARE_apdu */
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static int hf_atn_ulcs_rlrq = -1; /* RLRQ_apdu */
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static int hf_atn_ulcs_rlre = -1; /* RLRE_apdu */
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static int hf_atn_ulcs_abrt = -1; /* ABRT_apdu */
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static int hf_atn_ulcs_aarq_apdu_protocol_version = -1; /* T_aarq_apdu_protocol_version */
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static int hf_atn_ulcs_application_context_name = -1; /* Application_context_name */
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static int hf_atn_ulcs_called_AP_title = -1; /* AP_title */
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static int hf_atn_ulcs_called_AE_qualifier = -1; /* AE_qualifier */
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static int hf_atn_ulcs_called_AP_invocation_identifier = -1; /* AP_invocation_identifier */
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static int hf_atn_ulcs_called_AE_invocation_identifier = -1; /* AE_invocation_identifier */
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static int hf_atn_ulcs_calling_AP_title = -1; /* AP_title */
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static int hf_atn_ulcs_calling_AE_qualifier = -1; /* AE_qualifier */
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static int hf_atn_ulcs_calling_AP_invocation_identifier = -1; /* AP_invocation_identifier */
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static int hf_atn_ulcs_calling_AE_invocation_identifier = -1; /* AE_invocation_identifier */
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static int hf_atn_ulcs_sender_acse_requirements = -1; /* ACSE_requirements */
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static int hf_atn_ulcs_mechanism_name = -1; /* Mechanism_name */
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static int hf_atn_ulcs_calling_authentication_value = -1; /* Authentication_value */
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static int hf_atn_ulcs_application_context_name_list = -1; /* Application_context_name_list */
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static int hf_atn_ulcs_implementation_information = -1; /* Implementation_data */
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static int hf_atn_ulcs_user_information = -1; /* Association_information */
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static int hf_atn_ulcs_aare_apdu_protocol_version = -1; /* T_aare_apdu_protocol_version */
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static int hf_atn_ulcs_result = -1; /* Associate_result */
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static int hf_atn_ulcs_result_source_diagnostic = -1; /* Associate_source_diagnostic */
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static int hf_atn_ulcs_responding_AP_title = -1; /* AP_title */
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static int hf_atn_ulcs_responding_AE_qualifier = -1; /* AE_qualifier */
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static int hf_atn_ulcs_responding_AP_invocation_identifier = -1; /* AP_invocation_identifier */
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static int hf_atn_ulcs_responding_AE_invocation_identifier = -1; /* AE_invocation_identifier */
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static int hf_atn_ulcs_responder_acse_requirements = -1; /* ACSE_requirements */
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static int hf_atn_ulcs_responding_authentication_value = -1; /* Authentication_value */
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static int hf_atn_ulcs_rlrq_apdu_request_reason = -1; /* Release_request_reason */
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static int hf_atn_ulcs_rlre_apdu_response_reason = -1; /* Release_response_reason */
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static int hf_atn_ulcs_abort_source = -1; /* ABRT_source */
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static int hf_atn_ulcs_abort_diagnostic = -1; /* ABRT_diagnostic */
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static int hf_atn_ulcs_Application_context_name_list_item = -1; /* Application_context_name */
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static int hf_atn_ulcs_ap_title_form2 = -1; /* AP_title_form2 */
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static int hf_atn_ulcs_ap_title_form1 = -1; /* AP_title_form1 */
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static int hf_atn_ulcs_ae_qualifier_form2 = -1; /* AE_qualifier_form2 */
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static int hf_atn_ulcs_ae_qualifier_form1 = -1; /* AE_qualifier_form1 */
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static int hf_atn_ulcs_acse_service_user = -1; /* T_acse_service_user */
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static int hf_atn_ulcs_acse_service_provider = -1; /* T_acse_service_provider */
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static int hf_atn_ulcs_Association_information_item = -1; /* EXTERNALt */
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static int hf_atn_ulcs_charstring = -1; /* OCTET_STRING */
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static int hf_atn_ulcs_bitstring = -1; /* BIT_STRING */
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static int hf_atn_ulcs_external = -1; /* EXTERNAL */
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static int hf_atn_ulcs_other = -1; /* T_other */
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static int hf_atn_ulcs_other_mechanism_name = -1; /* OBJECT_IDENTIFIER */
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static int hf_atn_ulcs_other_mechanism_value = -1; /* T_other_mechanism_value */
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static int hf_atn_ulcs_rdnSequence = -1; /* RDNSequence */
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static int hf_atn_ulcs_RDNSequence_item = -1; /* RelativeDistinguishedName */
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static int hf_atn_ulcs_RelativeDistinguishedName_item = -1; /* AttributeTypeAndValue */
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static int hf_atn_ulcs_null = -1; /* NULL */
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/* named bits */
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static int hf_atn_ulcs_T_aarq_apdu_protocol_version_version1 = -1;
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static int hf_atn_ulcs_T_aare_apdu_protocol_version_version1 = -1;
|
|
|
|
static int hf_atn_ulcs_ACSE_requirements_authentication = -1;
|
|
|
|
static int hf_atn_ulcs_ACSE_requirements_application_context_negotiation = -1;
|
|
|
|
|
|
|
|
/*--- End of included file: packet-atn-ulcs-hf.c ---*/
|
2018-02-18 14:19:48 +00:00
|
|
|
#line 178 "./asn1/atn-ulcs/packet-atn-ulcs-template.c"
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
/*--- Included file: packet-atn-ulcs-ett.c ---*/
|
2016-03-09 03:17:51 +00:00
|
|
|
#line 1 "./asn1/atn-ulcs/packet-atn-ulcs-ett.c"
|
2013-09-05 05:26:04 +00:00
|
|
|
static gint ett_atn_ulcs_Fully_encoded_data = -1;
|
|
|
|
static gint ett_atn_ulcs_PDV_list = -1;
|
|
|
|
static gint ett_atn_ulcs_T_presentation_data_values = -1;
|
|
|
|
static gint ett_atn_ulcs_EXTERNALt = -1;
|
|
|
|
static gint ett_atn_ulcs_T_encoding = -1;
|
|
|
|
static gint ett_atn_ulcs_ACSE_apdu = -1;
|
|
|
|
static gint ett_atn_ulcs_AARQ_apdu = -1;
|
|
|
|
static gint ett_atn_ulcs_T_aarq_apdu_protocol_version = -1;
|
|
|
|
static gint ett_atn_ulcs_AARE_apdu = -1;
|
|
|
|
static gint ett_atn_ulcs_T_aare_apdu_protocol_version = -1;
|
|
|
|
static gint ett_atn_ulcs_RLRQ_apdu = -1;
|
|
|
|
static gint ett_atn_ulcs_RLRE_apdu = -1;
|
|
|
|
static gint ett_atn_ulcs_ABRT_apdu = -1;
|
|
|
|
static gint ett_atn_ulcs_ACSE_requirements = -1;
|
|
|
|
static gint ett_atn_ulcs_Application_context_name_list = -1;
|
|
|
|
static gint ett_atn_ulcs_AP_title = -1;
|
|
|
|
static gint ett_atn_ulcs_AE_qualifier = -1;
|
|
|
|
static gint ett_atn_ulcs_Associate_source_diagnostic = -1;
|
|
|
|
static gint ett_atn_ulcs_Association_information = -1;
|
|
|
|
static gint ett_atn_ulcs_Authentication_value = -1;
|
|
|
|
static gint ett_atn_ulcs_T_other = -1;
|
|
|
|
static gint ett_atn_ulcs_Name = -1;
|
|
|
|
static gint ett_atn_ulcs_RDNSequence = -1;
|
|
|
|
static gint ett_atn_ulcs_RelativeDistinguishedName = -1;
|
|
|
|
static gint ett_atn_ulcs_AttributeTypeAndValue = -1;
|
|
|
|
|
|
|
|
/*--- End of included file: packet-atn-ulcs-ett.c ---*/
|
2018-02-18 14:19:48 +00:00
|
|
|
#line 180 "./asn1/atn-ulcs/packet-atn-ulcs-template.c"
|
2013-09-05 05:26:04 +00:00
|
|
|
static gint ett_atn_ulcs = -1;
|
|
|
|
static gint ett_atn_acse = -1;
|
|
|
|
|
|
|
|
|
|
|
|
/*--- Included file: packet-atn-ulcs-fn.c ---*/
|
2016-03-09 03:17:51 +00:00
|
|
|
#line 1 "./asn1/atn-ulcs/packet-atn-ulcs-fn.c"
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Transfer_syntax_name(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_object_identifier(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_Presentation_context_identifier_vals[] = {
|
|
|
|
{ 1, "acse-apdu" },
|
|
|
|
{ 2, "reserved" },
|
|
|
|
{ 3, "user-ase-apdu" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Presentation_context_identifier(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
offset = dissect_per_constrained_integer(
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index,
|
|
|
|
1U,
|
|
|
|
127U,
|
|
|
|
&ulcs_context_value,
|
|
|
|
TRUE);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_pdv_list_presentation_data_values_single_asn1_type(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_open_type(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_OCTET_STRING(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_octet_string(tvb, offset, actx, tree, hf_index,
|
|
|
|
NO_BOUND, NO_BOUND, FALSE, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_pdv_list_presentation_data_values_arbitrary(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
packet_info * pinfo = actx->pinfo;
|
|
|
|
tvbuff_t *tvb_usr = NULL;
|
|
|
|
proto_tree *atn_ulcs_tree = NULL;
|
|
|
|
atn_conversation_t *atn_cv = NULL;
|
|
|
|
heur_dtbl_entry_t *hdtbl_entry;
|
|
|
|
|
|
|
|
/* extract bitstring into new tvb buffer */
|
|
|
|
offset = dissect_per_bit_string(
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index,
|
|
|
|
NO_BOUND,
|
|
|
|
NO_BOUND,
|
|
|
|
FALSE,
|
2019-04-04 11:00:35 +00:00
|
|
|
NULL,
|
|
|
|
0,
|
2015-08-09 16:20:54 +00:00
|
|
|
&tvb_usr,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
if (tvb_usr) {
|
|
|
|
/* call appropiate dissector for bitstring data */
|
|
|
|
switch(ulcs_context_value){
|
|
|
|
case 1: /* ACSE PDU*/
|
|
|
|
atn_ulcs_tree = proto_tree_add_subtree(
|
|
|
|
root_tree, tvb, offset, 0,
|
|
|
|
ett_atn_acse, NULL, ATN_ACSE_PROTO );
|
|
|
|
|
|
|
|
dissect_ACSE_apdu_PDU(
|
|
|
|
tvb_new_subset_remaining(tvb_usr, 0),
|
|
|
|
pinfo,
|
|
|
|
atn_ulcs_tree, NULL);
|
|
|
|
break;
|
|
|
|
case 3: /* USER data; call subdissector for CM, CPDLC ... */
|
|
|
|
|
|
|
|
/* using dstref for PDV-list only occurrs in DT */
|
|
|
|
atn_cv = find_atn_conversation(
|
|
|
|
&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src);
|
|
|
|
|
|
|
|
if(atn_cv) {
|
|
|
|
switch(atn_cv->ae_qualifier){
|
|
|
|
case cma: /* contact management */
|
|
|
|
call_dissector_with_data(
|
|
|
|
atn_cm_handle,
|
|
|
|
tvb_new_subset_remaining(tvb_usr, 0),
|
|
|
|
pinfo,
|
|
|
|
root_tree,
|
|
|
|
NULL);
|
|
|
|
break;
|
|
|
|
case cpdlc: /* plain old cpdlc */
|
|
|
|
case pmcpdlc: /* protected mode cpdlc */
|
|
|
|
call_dissector_with_data(
|
|
|
|
atn_cpdlc_handle,
|
|
|
|
tvb_new_subset_remaining(tvb_usr, 0),
|
|
|
|
pinfo,
|
|
|
|
root_tree,
|
|
|
|
NULL);
|
|
|
|
break;
|
|
|
|
default: /* unknown or unhandled datalink application */
|
|
|
|
dissector_try_heuristic(
|
|
|
|
atn_ulcs_heur_subdissector_list,
|
|
|
|
tvb_new_subset_remaining(tvb_usr,0),
|
|
|
|
actx->pinfo,
|
|
|
|
root_tree,
|
|
|
|
&hdtbl_entry,
|
|
|
|
NULL);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else{
|
|
|
|
dissector_try_heuristic(
|
|
|
|
atn_ulcs_heur_subdissector_list,
|
|
|
|
tvb_new_subset_remaining(tvb_usr,0),
|
|
|
|
actx->pinfo,
|
|
|
|
root_tree,
|
|
|
|
&hdtbl_entry,
|
|
|
|
NULL);
|
|
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
} /* switch(ulcs_context_value) */
|
|
|
|
}
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_T_presentation_data_values_vals[] = {
|
|
|
|
{ 0, "single-ASN1-type" },
|
|
|
|
{ 1, "octet-aligned" },
|
|
|
|
{ 2, "arbitrary" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const per_choice_t T_presentation_data_values_choice[] = {
|
|
|
|
{ 0, &hf_atn_ulcs_pdv_list_presentation_data_values_single_asn1_type, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_T_pdv_list_presentation_data_values_single_asn1_type },
|
|
|
|
{ 1, &hf_atn_ulcs_octet_aligned, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_OCTET_STRING },
|
|
|
|
{ 2, &hf_atn_ulcs_pdv_list_presentation_data_values_arbitrary, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_T_pdv_list_presentation_data_values_arbitrary },
|
|
|
|
{ 0, NULL, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_presentation_data_values(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_T_presentation_data_values, T_presentation_data_values_choice,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t PDV_list_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_transfer_syntax_name, ASN1_NO_EXTENSIONS , ASN1_OPTIONAL , dissect_atn_ulcs_Transfer_syntax_name },
|
|
|
|
{ &hf_atn_ulcs_presentation_context_identifier, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_Presentation_context_identifier },
|
|
|
|
{ &hf_atn_ulcs_presentation_data_values, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_T_presentation_data_values },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_PDV_list(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_PDV_list, PDV_list_sequence);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t Fully_encoded_data_sequence_of[1] = {
|
|
|
|
{ &hf_atn_ulcs_Fully_encoded_data_item, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_PDV_list },
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Fully_encoded_data(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_constrained_sequence_of(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_Fully_encoded_data, Fully_encoded_data_sequence_of,
|
|
|
|
1, 1, TRUE);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_OBJECT_IDENTIFIER(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_object_identifier(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_INTEGER(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_integer(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_data_value_descriptor(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
offset = dissect_per_octet_string(
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index,
|
|
|
|
-1,
|
|
|
|
-1,
|
|
|
|
FALSE,
|
|
|
|
&actx->external.data_value_descriptor);
|
2013-09-05 05:26:04 +00:00
|
|
|
actx->external.data_value_descr_present = TRUE;
|
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_externalt_encoding_single_asn1_type(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
offset = dissect_per_open_type(tvb, offset, actx, tree, hf_index, NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_externalt_encoding_octet_aligned(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
offset = dissect_per_octet_string(tvb, offset, actx, tree, hf_index,
|
2013-09-05 05:26:04 +00:00
|
|
|
NO_BOUND, NO_BOUND, FALSE, NULL);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_externalt_encoding_arbitrary(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
2015-08-09 16:20:54 +00:00
|
|
|
tvbuff_t *tvb_usr = NULL;
|
|
|
|
packet_info * pinfo = actx->pinfo;
|
|
|
|
atn_conversation_t *atn_cv = NULL;
|
|
|
|
heur_dtbl_entry_t *hdtbl_entry;
|
|
|
|
|
|
|
|
/* decode bit-string user data within ACSE */
|
|
|
|
offset = dissect_per_bit_string(
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree, hf_index,
|
|
|
|
NO_BOUND,
|
|
|
|
NO_BOUND,
|
|
|
|
FALSE,
|
2019-04-04 11:00:35 +00:00
|
|
|
NULL,
|
|
|
|
0,
|
2015-08-09 16:20:54 +00:00
|
|
|
&tvb_usr,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
if (tvb_usr) {
|
|
|
|
/* DT: dstref present, srcref is always zero */
|
|
|
|
if((pinfo->clnp_dstref) && (!pinfo->clnp_srcref)){
|
|
|
|
|
|
|
|
atn_cv = find_atn_conversation(
|
|
|
|
&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src);
|
|
|
|
}
|
|
|
|
/* CR: srcref present, dstref always zero */
|
|
|
|
if((pinfo->clnp_srcref) && (!pinfo->clnp_dstref)){
|
|
|
|
|
|
|
|
atn_cv = find_atn_conversation(
|
|
|
|
&pinfo->src,
|
|
|
|
pinfo->clnp_srcref,
|
|
|
|
&pinfo->dst);
|
|
|
|
}
|
|
|
|
/* CC: srcref and dstref present */
|
|
|
|
if((pinfo->clnp_srcref) && (pinfo->clnp_dstref)){
|
|
|
|
|
|
|
|
atn_cv = find_atn_conversation(
|
|
|
|
&pinfo->src,
|
|
|
|
pinfo->clnp_srcref,
|
|
|
|
&pinfo->dst);
|
|
|
|
}
|
|
|
|
|
|
|
|
if(atn_cv) {
|
|
|
|
switch(atn_cv->ae_qualifier){
|
|
|
|
case cma: /* contact management */
|
|
|
|
|
|
|
|
call_dissector_with_data(
|
|
|
|
atn_cm_handle,
|
|
|
|
tvb_new_subset_remaining(tvb_usr, 0),
|
|
|
|
pinfo,
|
|
|
|
root_tree,
|
|
|
|
NULL);
|
|
|
|
break;
|
|
|
|
case cpdlc: /* plain old cpdlc */
|
|
|
|
case pmcpdlc: /* protected mode cpdlc */
|
|
|
|
|
|
|
|
call_dissector_with_data(
|
|
|
|
atn_cpdlc_handle,
|
|
|
|
tvb_new_subset_remaining(tvb_usr, 0),
|
|
|
|
pinfo,
|
|
|
|
root_tree,
|
|
|
|
NULL);
|
|
|
|
break;
|
|
|
|
default: /* unknown or unhandled datalink application */
|
|
|
|
|
|
|
|
dissector_try_heuristic(
|
|
|
|
atn_ulcs_heur_subdissector_list,
|
|
|
|
tvb_new_subset_remaining(tvb_usr,0),
|
|
|
|
actx->pinfo,
|
|
|
|
root_tree,
|
|
|
|
&hdtbl_entry,
|
|
|
|
NULL);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}else {
|
|
|
|
|
|
|
|
dissector_try_heuristic(
|
|
|
|
atn_ulcs_heur_subdissector_list,
|
|
|
|
tvb_new_subset_remaining(tvb_usr,0),
|
|
|
|
actx->pinfo,
|
|
|
|
root_tree,
|
|
|
|
&hdtbl_entry,
|
|
|
|
NULL);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
offset += tvb_reported_length_remaining(tvb, offset);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_T_encoding_vals[] = {
|
|
|
|
{ 0, "single-ASN1-type" },
|
|
|
|
{ 1, "octet-aligned" },
|
|
|
|
{ 2, "arbitrary" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const per_choice_t T_encoding_choice[] = {
|
|
|
|
{ 0, &hf_atn_ulcs_externalt_encoding_single_asn1_type, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_T_externalt_encoding_single_asn1_type },
|
|
|
|
{ 1, &hf_atn_ulcs_externalt_encoding_octet_aligned, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_T_externalt_encoding_octet_aligned },
|
|
|
|
{ 2, &hf_atn_ulcs_externalt_encoding_arbitrary, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_T_externalt_encoding_arbitrary },
|
|
|
|
{ 0, NULL, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_encoding(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_T_encoding, T_encoding_choice,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t EXTERNALt_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_direct_reference, ASN1_NO_EXTENSIONS , ASN1_OPTIONAL , dissect_atn_ulcs_OBJECT_IDENTIFIER },
|
|
|
|
{ &hf_atn_ulcs_indirect_reference, ASN1_NO_EXTENSIONS , ASN1_OPTIONAL , dissect_atn_ulcs_INTEGER },
|
|
|
|
{ &hf_atn_ulcs_data_value_descriptor, ASN1_NO_EXTENSIONS , ASN1_OPTIONAL , dissect_atn_ulcs_T_data_value_descriptor },
|
|
|
|
{ &hf_atn_ulcs_encoding , ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_T_encoding },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_EXTERNALt(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_EXTERNALt, EXTERNALt_sequence);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-06-19 01:14:46 +00:00
|
|
|
static int * const T_aarq_apdu_protocol_version_bits[] = {
|
2019-04-04 11:00:35 +00:00
|
|
|
&hf_atn_ulcs_T_aarq_apdu_protocol_version_version1,
|
|
|
|
NULL
|
|
|
|
};
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_aarq_apdu_protocol_version(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_bit_string(tvb, offset, actx, tree, hf_index,
|
2019-04-04 11:00:35 +00:00
|
|
|
NO_BOUND, NO_BOUND, FALSE, T_aarq_apdu_protocol_version_bits, 1, NULL, NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Application_context_name(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_object_identifier(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AP_title_form2(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_object_identifier(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_NULL(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_null(tvb, offset, actx, tree, hf_index);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t AttributeTypeAndValue_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_null , ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_NULL },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AttributeTypeAndValue(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_AttributeTypeAndValue, AttributeTypeAndValue_sequence);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t RelativeDistinguishedName_set_of[1] = {
|
|
|
|
{ &hf_atn_ulcs_RelativeDistinguishedName_item, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_AttributeTypeAndValue },
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_RelativeDistinguishedName(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_constrained_set_of(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_RelativeDistinguishedName, RelativeDistinguishedName_set_of,
|
|
|
|
1, NO_BOUND, FALSE);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t RDNSequence_sequence_of[1] = {
|
|
|
|
{ &hf_atn_ulcs_RDNSequence_item, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_RelativeDistinguishedName },
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_RDNSequence(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence_of(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_RDNSequence, RDNSequence_sequence_of);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_Name_vals[] = {
|
|
|
|
{ 0, "rdnSequence" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const per_choice_t Name_choice[] = {
|
|
|
|
{ 0, &hf_atn_ulcs_rdnSequence, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_RDNSequence },
|
|
|
|
{ 0, NULL, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Name(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_Name, Name_choice,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AP_title_form1(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_atn_ulcs_Name(tvb, offset, actx, tree, hf_index);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_AP_title_vals[] = {
|
|
|
|
{ 0, "ap-title-form2" },
|
|
|
|
{ 1, "ap-title-form1" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const per_choice_t AP_title_choice[] = {
|
|
|
|
{ 0, &hf_atn_ulcs_ap_title_form2, ASN1_EXTENSION_ROOT , dissect_atn_ulcs_AP_title_form2 },
|
|
|
|
{ 1, &hf_atn_ulcs_ap_title_form1, ASN1_EXTENSION_ROOT , dissect_atn_ulcs_AP_title_form1 },
|
|
|
|
{ 0, NULL, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AP_title(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_AP_title, AP_title_choice,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AE_qualifier_form2(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
2015-08-09 16:20:54 +00:00
|
|
|
packet_info * pinfo = actx->pinfo;
|
|
|
|
atn_conversation_t *atn_cv = NULL;
|
|
|
|
guint32 ae_qualifier = 0;
|
|
|
|
|
|
|
|
/* dissect ae-qualifier */
|
|
|
|
offset = dissect_per_integer(
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index,
|
|
|
|
&ae_qualifier);
|
|
|
|
|
|
|
|
|
|
|
|
/*note: */
|
|
|
|
/* the field "calling-AE-qualifier" is optional, */
|
|
|
|
/* which means that we can exploit it only if it is present. */
|
|
|
|
/* We still depend on heuristical decoding of CM, CPDLC PDU's otherwise. */
|
|
|
|
|
|
|
|
/* AARQ/DT: dstref present, srcref is always zero */
|
|
|
|
if((pinfo->clnp_dstref) && (!pinfo->clnp_srcref)){
|
|
|
|
atn_cv = find_atn_conversation(&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src );
|
|
|
|
}
|
|
|
|
|
|
|
|
/* AARQ/CR: srcref present, dstref is always zero */
|
|
|
|
if((!pinfo->clnp_dstref) && (pinfo->clnp_srcref)){
|
|
|
|
atn_cv = find_atn_conversation(&pinfo->src,
|
|
|
|
pinfo->clnp_srcref,
|
|
|
|
&pinfo->dst );
|
|
|
|
}
|
|
|
|
|
|
|
|
if(atn_cv){
|
|
|
|
atn_cv->ae_qualifier = ae_qualifier;
|
|
|
|
}
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AE_qualifier_form1(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_atn_ulcs_RelativeDistinguishedName(tvb, offset, actx, tree, hf_index);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_AE_qualifier_vals[] = {
|
|
|
|
{ 0, "ae-qualifier-form2" },
|
|
|
|
{ 1, "ae-qualifier-form1" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const per_choice_t AE_qualifier_choice[] = {
|
|
|
|
{ 0, &hf_atn_ulcs_ae_qualifier_form2, ASN1_EXTENSION_ROOT , dissect_atn_ulcs_AE_qualifier_form2 },
|
|
|
|
{ 1, &hf_atn_ulcs_ae_qualifier_form1, ASN1_EXTENSION_ROOT , dissect_atn_ulcs_AE_qualifier_form1 },
|
|
|
|
{ 0, NULL, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AE_qualifier(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_AE_qualifier, AE_qualifier_choice,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AP_invocation_identifier(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_integer(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AE_invocation_identifier(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_integer(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-06-19 01:14:46 +00:00
|
|
|
static int * const ACSE_requirements_bits[] = {
|
2019-04-04 11:00:35 +00:00
|
|
|
&hf_atn_ulcs_ACSE_requirements_authentication,
|
|
|
|
&hf_atn_ulcs_ACSE_requirements_application_context_negotiation,
|
|
|
|
NULL
|
|
|
|
};
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_ACSE_requirements(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_bit_string(tvb, offset, actx, tree, hf_index,
|
2019-04-04 11:00:35 +00:00
|
|
|
NO_BOUND, NO_BOUND, FALSE, ACSE_requirements_bits, 2, NULL, NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Mechanism_name(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
offset = dissect_per_object_identifier(
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index,
|
|
|
|
NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
offset = dissect_per_object_identifier(
|
2015-08-09 16:20:54 +00:00
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index,
|
|
|
|
NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_BIT_STRING(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_bit_string(tvb, offset, actx, tree, hf_index,
|
2019-04-04 11:00:35 +00:00
|
|
|
NO_BOUND, NO_BOUND, FALSE, NULL, 0, NULL, NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_EXTERNAL(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_external_type(tvb, offset, actx, tree, hf_index, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_other_mechanism_value(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
offset=call_ber_oid_callback(
|
|
|
|
object_identifier_id,
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx->pinfo,
|
|
|
|
tree, NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
offset=call_ber_oid_callback(
|
|
|
|
object_identifier_id,
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx->pinfo,
|
|
|
|
tree, NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t T_other_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_other_mechanism_name, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_OBJECT_IDENTIFIER },
|
|
|
|
{ &hf_atn_ulcs_other_mechanism_value, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_T_other_mechanism_value },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_other(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_T_other, T_other_sequence);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_Authentication_value_vals[] = {
|
|
|
|
{ 0, "charstring" },
|
|
|
|
{ 1, "bitstring" },
|
|
|
|
{ 2, "external" },
|
|
|
|
{ 3, "other" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const per_choice_t Authentication_value_choice[] = {
|
|
|
|
{ 0, &hf_atn_ulcs_charstring , ASN1_NO_EXTENSIONS , dissect_atn_ulcs_OCTET_STRING },
|
|
|
|
{ 1, &hf_atn_ulcs_bitstring , ASN1_NO_EXTENSIONS , dissect_atn_ulcs_BIT_STRING },
|
|
|
|
{ 2, &hf_atn_ulcs_external , ASN1_NO_EXTENSIONS , dissect_atn_ulcs_EXTERNAL },
|
|
|
|
{ 3, &hf_atn_ulcs_other , ASN1_NO_EXTENSIONS , dissect_atn_ulcs_T_other },
|
|
|
|
{ 0, NULL, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Authentication_value(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_Authentication_value, Authentication_value_choice,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t Application_context_name_list_sequence_of[1] = {
|
|
|
|
{ &hf_atn_ulcs_Application_context_name_list_item, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_Application_context_name },
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Application_context_name_list(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence_of(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_Application_context_name_list, Application_context_name_list_sequence_of);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Implementation_data(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_octet_string(tvb, offset, actx, tree, hf_index,
|
|
|
|
NO_BOUND, NO_BOUND, FALSE, NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t Association_information_sequence_of[1] = {
|
|
|
|
{ &hf_atn_ulcs_Association_information_item, ASN1_NO_EXTENSIONS , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_EXTERNALt },
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Association_information(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_constrained_sequence_of(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_Association_information, Association_information_sequence_of,
|
|
|
|
1, 1, TRUE);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t AARQ_apdu_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_aarq_apdu_protocol_version, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_T_aarq_apdu_protocol_version },
|
|
|
|
{ &hf_atn_ulcs_application_context_name, ASN1_EXTENSION_ROOT , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_Application_context_name },
|
|
|
|
{ &hf_atn_ulcs_called_AP_title, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AP_title },
|
|
|
|
{ &hf_atn_ulcs_called_AE_qualifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AE_qualifier },
|
|
|
|
{ &hf_atn_ulcs_called_AP_invocation_identifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AP_invocation_identifier },
|
|
|
|
{ &hf_atn_ulcs_called_AE_invocation_identifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AE_invocation_identifier },
|
|
|
|
{ &hf_atn_ulcs_calling_AP_title, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AP_title },
|
|
|
|
{ &hf_atn_ulcs_calling_AE_qualifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AE_qualifier },
|
|
|
|
{ &hf_atn_ulcs_calling_AP_invocation_identifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AP_invocation_identifier },
|
|
|
|
{ &hf_atn_ulcs_calling_AE_invocation_identifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AE_invocation_identifier },
|
|
|
|
{ &hf_atn_ulcs_sender_acse_requirements, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_ACSE_requirements },
|
|
|
|
{ &hf_atn_ulcs_mechanism_name, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Mechanism_name },
|
|
|
|
{ &hf_atn_ulcs_calling_authentication_value, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Authentication_value },
|
|
|
|
{ &hf_atn_ulcs_application_context_name_list, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Application_context_name_list },
|
|
|
|
{ &hf_atn_ulcs_implementation_information, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Implementation_data },
|
|
|
|
{ &hf_atn_ulcs_user_information, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Association_information },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AARQ_apdu(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
2015-08-09 16:20:54 +00:00
|
|
|
packet_info * pinfo = actx->pinfo;
|
|
|
|
aarq_data_t *aarq_data = NULL;
|
|
|
|
atn_conversation_t *atn_cv = NULL;
|
|
|
|
guint32 aircraft_24_bit_address = 0;
|
|
|
|
|
|
|
|
/* AARQ/DT: dstref present, srcref is always zero */
|
|
|
|
if((pinfo->clnp_dstref) && (!pinfo->clnp_srcref)){
|
|
|
|
|
|
|
|
atn_cv = find_atn_conversation(
|
|
|
|
&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src );
|
|
|
|
if(!atn_cv){
|
|
|
|
atn_cv = wmem_new(wmem_file_scope(), atn_conversation_t);
|
|
|
|
atn_cv->ae_qualifier = unknown;
|
|
|
|
create_atn_conversation(&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src ,
|
|
|
|
atn_cv);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* AARQ/CR: srcref present, dstref is always zero */
|
|
|
|
if((!pinfo->clnp_dstref) && (pinfo->clnp_srcref)){
|
|
|
|
atn_cv = find_atn_conversation(&pinfo->src,
|
|
|
|
pinfo->clnp_srcref,
|
|
|
|
&pinfo->dst );
|
|
|
|
if(!atn_cv){
|
|
|
|
atn_cv = wmem_new(wmem_file_scope(), atn_conversation_t);
|
|
|
|
atn_cv->ae_qualifier = unknown;
|
|
|
|
create_atn_conversation(&pinfo->src,
|
|
|
|
pinfo->clnp_srcref,
|
|
|
|
&pinfo->dst ,
|
|
|
|
atn_cv);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* conversation is to be created prior to decoding */
|
|
|
|
/* of "AE-qualifier-form2" which takes place here: */
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
2013-09-05 05:26:04 +00:00
|
|
|
ett_atn_ulcs_AARQ_apdu, AARQ_apdu_sequence);
|
|
|
|
|
|
|
|
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* save AARQ packet data to create a conversation */
|
|
|
|
/* when decoding the following AARE PDU */
|
|
|
|
/* ATN applications CM and CPDLC are air/ground applications */
|
|
|
|
/* so there is always an aircraft (with its 24-bit address) */
|
|
|
|
/* and a ground facility. */
|
|
|
|
/* the assumption is that there is only one open AARQ/AARE */
|
|
|
|
/* dialog per aircraft at a time. */
|
|
|
|
/* the aircraft's 24-bit address is used as a key to each AARQ */
|
|
|
|
/* data. AARQ data is used to create a conversation with */
|
|
|
|
/* air and ground endpoints (based on NSAP's and transport references) */
|
|
|
|
/* when decoding AARE.*/
|
|
|
|
/* note: */
|
|
|
|
/* it may be more robust to create the conversation */
|
|
|
|
/* in the "ositp" dissector an to merely use the conversation here */
|
|
|
|
aircraft_24_bit_address =
|
|
|
|
get_aircraft_24_bit_address_from_nsap(pinfo);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* search for aarq entry */
|
|
|
|
aarq_data = (aarq_data_t *) wmem_tree_lookup32(
|
|
|
|
aarq_data_tree,
|
|
|
|
aircraft_24_bit_address);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
if(!aarq_data){ /* aarq data not found, create new record */
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* alloc aarq data */
|
|
|
|
aarq_data = wmem_new(wmem_file_scope(), aarq_data_t);
|
|
|
|
aarq_data-> aarq_pending = FALSE;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* insert aarq data */
|
|
|
|
wmem_tree_insert32(aarq_data_tree ,aircraft_24_bit_address,(void*)aarq_data);
|
|
|
|
}
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* check for pending AARQ/AARE sequences */
|
|
|
|
/* if "aarq_data-> aarq_pending" is set this means that there is already one */
|
|
|
|
/* AARQ/AARE sequence pending (is unwise to overwrite AARE/AARQ) */
|
|
|
|
if (aarq_data-> aarq_pending == FALSE ) {
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* init aarq data */
|
|
|
|
memset(aarq_data,0,sizeof(aarq_data_t));
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
aarq_data->cv = atn_cv;
|
|
|
|
aarq_data-> aarq_pending = TRUE;
|
|
|
|
}
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2020-06-19 01:14:46 +00:00
|
|
|
static int * const T_aare_apdu_protocol_version_bits[] = {
|
2019-04-04 11:00:35 +00:00
|
|
|
&hf_atn_ulcs_T_aare_apdu_protocol_version_version1,
|
|
|
|
NULL
|
|
|
|
};
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_aare_apdu_protocol_version(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_bit_string(tvb, offset, actx, tree, hf_index,
|
2019-04-04 11:00:35 +00:00
|
|
|
NO_BOUND, NO_BOUND, FALSE, T_aare_apdu_protocol_version_bits, 1, NULL, NULL);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_Associate_result_vals[] = {
|
|
|
|
{ 0, "accepted" },
|
|
|
|
{ 1, "rejected-permanent" },
|
|
|
|
{ 2, "rejected-transient" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Associate_result(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
/* extension present: last param set to true. asn2wrs didn't take notice of that */
|
|
|
|
offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,
|
|
|
|
0U, 2U, NULL, TRUE);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_T_acse_service_user_vals[] = {
|
|
|
|
{ 0, "null" },
|
|
|
|
{ 1, "no-reason-given" },
|
|
|
|
{ 2, "application-context-name-not-supported" },
|
|
|
|
{ 3, "calling-AP-title-not-recognized" },
|
|
|
|
{ 4, "calling-AP-invocation-identifier-not-recognized" },
|
|
|
|
{ 5, "calling-AE-qualifier-not-recognized" },
|
|
|
|
{ 6, "calling-AE-invocation-identifier-not-recognized" },
|
|
|
|
{ 7, "called-AP-title-not-recognized" },
|
|
|
|
{ 8, "called-AP-invocation-identifier-not-recognized" },
|
|
|
|
{ 9, "called-AE-qualifier-not-recognized" },
|
|
|
|
{ 10, "called-AE-invocation-identifier-not-recognized" },
|
|
|
|
{ 11, "authentication-mechanism-name-not-recognized" },
|
|
|
|
{ 12, "authentication-mechanism-name-required" },
|
|
|
|
{ 13, "authentication-failure" },
|
|
|
|
{ 14, "authentication-required" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_acse_service_user(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,
|
|
|
|
0U, 14U, NULL, TRUE);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_T_acse_service_provider_vals[] = {
|
|
|
|
{ 0, "null" },
|
|
|
|
{ 1, "no-reason-given" },
|
|
|
|
{ 2, "no-common-acse-version" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_T_acse_service_provider(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,
|
|
|
|
0U, 2U, NULL, TRUE);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_Associate_source_diagnostic_vals[] = {
|
|
|
|
{ 1, "acse-service-user" },
|
|
|
|
{ 2, "acse-service-provider" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const per_choice_t Associate_source_diagnostic_choice[] = {
|
|
|
|
{ 1, &hf_atn_ulcs_acse_service_user, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_T_acse_service_user },
|
|
|
|
{ 2, &hf_atn_ulcs_acse_service_provider, ASN1_NO_EXTENSIONS , dissect_atn_ulcs_T_acse_service_provider },
|
|
|
|
{ 0, NULL, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Associate_source_diagnostic(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_Associate_source_diagnostic, Associate_source_diagnostic_choice,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t AARE_apdu_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_aare_apdu_protocol_version, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_T_aare_apdu_protocol_version },
|
|
|
|
{ &hf_atn_ulcs_application_context_name, ASN1_EXTENSION_ROOT , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_Application_context_name },
|
|
|
|
{ &hf_atn_ulcs_result , ASN1_EXTENSION_ROOT , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_Associate_result },
|
|
|
|
{ &hf_atn_ulcs_result_source_diagnostic, ASN1_EXTENSION_ROOT , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_Associate_source_diagnostic },
|
|
|
|
{ &hf_atn_ulcs_responding_AP_title, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AP_title },
|
|
|
|
{ &hf_atn_ulcs_responding_AE_qualifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AE_qualifier },
|
|
|
|
{ &hf_atn_ulcs_responding_AP_invocation_identifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AP_invocation_identifier },
|
|
|
|
{ &hf_atn_ulcs_responding_AE_invocation_identifier, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_AE_invocation_identifier },
|
|
|
|
{ &hf_atn_ulcs_responder_acse_requirements, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_ACSE_requirements },
|
|
|
|
{ &hf_atn_ulcs_mechanism_name, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Mechanism_name },
|
|
|
|
{ &hf_atn_ulcs_responding_authentication_value, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Authentication_value },
|
|
|
|
{ &hf_atn_ulcs_application_context_name_list, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Application_context_name_list },
|
|
|
|
{ &hf_atn_ulcs_implementation_information, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Implementation_data },
|
|
|
|
{ &hf_atn_ulcs_user_information, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Association_information },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_AARE_apdu(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
2015-08-09 16:20:54 +00:00
|
|
|
packet_info * pinfo = actx->pinfo;
|
|
|
|
guint32 aircraft_24_bit_address = 0 ;
|
|
|
|
atn_conversation_t *atn_cv = NULL;
|
|
|
|
aarq_data_t *aarq_data = NULL;
|
|
|
|
|
|
|
|
/* get AARQ data and use it to create a new conversation, */
|
|
|
|
/* the conversation is used along with */
|
|
|
|
/* AARQ's "calling ae qualifier" to determine the */
|
|
|
|
/* type of air/ground application of each subsequent frame.*/
|
|
|
|
/* we use this information to invoke the correct application dissector. */
|
|
|
|
/* note: */
|
|
|
|
/* heuristical decoding of ASN1 will not work for all cases, */
|
|
|
|
/* for there may be CM PDU's which will exactly look like CPDLC PDU'S */
|
|
|
|
|
|
|
|
/* get 24-bit icao address */
|
|
|
|
aircraft_24_bit_address = get_aircraft_24_bit_address_from_nsap(pinfo);
|
|
|
|
|
|
|
|
/* search for aarq entry */
|
|
|
|
aarq_data = (aarq_data_t *) wmem_tree_lookup32(
|
|
|
|
aarq_data_tree,
|
|
|
|
aircraft_24_bit_address);
|
|
|
|
|
|
|
|
/* no aarq data present, do nothing */
|
|
|
|
/* without both ends of the conversation and without */
|
|
|
|
/* the "calling ae-qualifier there is no point in setting up "*/
|
|
|
|
/* a conversation */
|
|
|
|
if(!aarq_data) {
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* AARE/DT: dstref present, srcref is always zero */
|
|
|
|
if((pinfo->clnp_dstref) && (!pinfo->clnp_srcref)){
|
|
|
|
|
|
|
|
atn_cv = find_atn_conversation(&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src );
|
|
|
|
|
|
|
|
if(!atn_cv){ /* conversation not fond */
|
|
|
|
|
|
|
|
/* DT has only dstref - create new conversation */
|
|
|
|
create_atn_conversation(&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src ,
|
|
|
|
aarq_data->cv);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* AARE/CC: srcref and dstref present */
|
|
|
|
if((pinfo->clnp_dstref) && (pinfo->clnp_srcref)){
|
|
|
|
|
|
|
|
atn_cv = find_atn_conversation(
|
|
|
|
&pinfo->src,
|
|
|
|
pinfo->clnp_srcref,
|
2013-09-05 05:26:04 +00:00
|
|
|
&pinfo->dst);
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
if(atn_cv){ /* conversation found. */
|
|
|
|
|
|
|
|
/* create new conversation for dstref */
|
|
|
|
create_atn_conversation(&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src ,
|
|
|
|
aarq_data->cv);
|
|
|
|
|
|
|
|
}else { /* no conversation found */
|
|
|
|
/* as CC contains srcref *and* dstref we use both to create new records */
|
|
|
|
create_atn_conversation(&pinfo->src,
|
|
|
|
pinfo->clnp_srcref,
|
|
|
|
&pinfo->dst ,
|
|
|
|
aarq_data->cv);
|
|
|
|
create_atn_conversation(&pinfo->dst,
|
|
|
|
pinfo->clnp_dstref,
|
|
|
|
&pinfo->src ,
|
|
|
|
aarq_data->cv);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* clear aarq data */
|
|
|
|
memset(aarq_data,0,sizeof(aarq_data_t));
|
|
|
|
aarq_data-> aarq_pending = FALSE;
|
|
|
|
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
2013-09-05 05:26:04 +00:00
|
|
|
ett_atn_ulcs_AARE_apdu, AARE_apdu_sequence);
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_Release_request_reason_vals[] = {
|
|
|
|
{ 0, "normal" },
|
|
|
|
{ 1, "urgent" },
|
|
|
|
{ 30, "user-defined" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Release_request_reason(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
/* extension present: last param set to true. asn2wrs didn't take notice of that */
|
|
|
|
offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,
|
|
|
|
0U, 30U, NULL, TRUE);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t RLRQ_apdu_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_rlrq_apdu_request_reason, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Release_request_reason },
|
|
|
|
{ &hf_atn_ulcs_user_information, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Association_information },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_RLRQ_apdu(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_RLRQ_apdu, RLRQ_apdu_sequence);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_Release_response_reason_vals[] = {
|
|
|
|
{ 0, "normal" },
|
|
|
|
{ 1, "not-finished" },
|
|
|
|
{ 30, "user-defined" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_Release_response_reason(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
|
|
|
|
/* extension present: last param set to true. asn2wrs didn't take notice of that */
|
|
|
|
offset = dissect_per_constrained_integer(
|
2015-08-09 16:20:54 +00:00
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index,
|
|
|
|
0U,
|
|
|
|
30U,
|
|
|
|
NULL,
|
|
|
|
TRUE);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t RLRE_apdu_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_rlre_apdu_response_reason, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Release_response_reason },
|
|
|
|
{ &hf_atn_ulcs_user_information, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Association_information },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_RLRE_apdu(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_RLRE_apdu, RLRE_apdu_sequence);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_ABRT_source_vals[] = {
|
|
|
|
{ 0, "acse-service-user" },
|
|
|
|
{ 1, "acse-service-provider" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_ABRT_source(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_constrained_integer(tvb, offset, actx, tree, hf_index,
|
|
|
|
0U, 1U, NULL, TRUE);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_ABRT_diagnostic_vals[] = {
|
|
|
|
{ 1, "no-reason-given" },
|
|
|
|
{ 2, "protocol-error" },
|
|
|
|
{ 3, "authentication-mechanism-name-not-recognized" },
|
|
|
|
{ 4, "authentication-mechanism-name-required" },
|
|
|
|
{ 5, "authentication-failure" },
|
|
|
|
{ 6, "authentication-required" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static guint32 ABRT_diagnostic_value_map[6+0] = {1, 2, 3, 4, 5, 6};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_ABRT_diagnostic(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_enumerated(tvb, offset, actx, tree, hf_index,
|
|
|
|
6, NULL, TRUE, 0, ABRT_diagnostic_value_map);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const per_sequence_t ABRT_apdu_sequence[] = {
|
|
|
|
{ &hf_atn_ulcs_abort_source, ASN1_EXTENSION_ROOT , ASN1_NOT_OPTIONAL, dissect_atn_ulcs_ABRT_source },
|
|
|
|
{ &hf_atn_ulcs_abort_diagnostic, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_ABRT_diagnostic },
|
|
|
|
{ &hf_atn_ulcs_user_information, ASN1_EXTENSION_ROOT , ASN1_OPTIONAL , dissect_atn_ulcs_Association_information },
|
|
|
|
{ NULL, 0, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_ABRT_apdu(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_sequence(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_ABRT_apdu, ABRT_apdu_sequence);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static const value_string atn_ulcs_ACSE_apdu_vals[] = {
|
|
|
|
{ 0, "aarq" },
|
|
|
|
{ 1, "aare" },
|
|
|
|
{ 2, "rlrq" },
|
|
|
|
{ 3, "rlre" },
|
|
|
|
{ 4, "abrt" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static const per_choice_t ACSE_apdu_choice[] = {
|
|
|
|
{ 0, &hf_atn_ulcs_aarq , ASN1_EXTENSION_ROOT , dissect_atn_ulcs_AARQ_apdu },
|
|
|
|
{ 1, &hf_atn_ulcs_aare , ASN1_EXTENSION_ROOT , dissect_atn_ulcs_AARE_apdu },
|
|
|
|
{ 2, &hf_atn_ulcs_rlrq , ASN1_EXTENSION_ROOT , dissect_atn_ulcs_RLRQ_apdu },
|
|
|
|
{ 3, &hf_atn_ulcs_rlre , ASN1_EXTENSION_ROOT , dissect_atn_ulcs_RLRE_apdu },
|
|
|
|
{ 4, &hf_atn_ulcs_abrt , ASN1_EXTENSION_ROOT , dissect_atn_ulcs_ABRT_apdu },
|
|
|
|
{ 0, NULL, 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs_ACSE_apdu(tvbuff_t *tvb _U_, int offset _U_, asn1_ctx_t *actx _U_, proto_tree *tree _U_, int hf_index _U_) {
|
|
|
|
offset = dissect_per_choice(tvb, offset, actx, tree, hf_index,
|
|
|
|
ett_atn_ulcs_ACSE_apdu, ACSE_apdu_choice,
|
|
|
|
NULL);
|
|
|
|
|
|
|
|
return offset;
|
|
|
|
}
|
|
|
|
|
|
|
|
/*--- PDUs ---*/
|
|
|
|
|
2014-10-06 13:31:47 +00:00
|
|
|
static int dissect_Fully_encoded_data_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, void *data _U_) {
|
|
|
|
int offset = 0;
|
2013-09-05 05:26:04 +00:00
|
|
|
asn1_ctx_t asn1_ctx;
|
|
|
|
asn1_ctx_init(&asn1_ctx, ASN1_ENC_PER, FALSE, pinfo);
|
2014-10-06 13:31:47 +00:00
|
|
|
offset = dissect_atn_ulcs_Fully_encoded_data(tvb, offset, &asn1_ctx, tree, hf_atn_ulcs_Fully_encoded_data_PDU);
|
|
|
|
offset += 7; offset >>= 3;
|
|
|
|
return offset;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
2014-10-06 13:31:47 +00:00
|
|
|
static int dissect_ACSE_apdu_PDU(tvbuff_t *tvb _U_, packet_info *pinfo _U_, proto_tree *tree _U_, void *data _U_) {
|
|
|
|
int offset = 0;
|
2013-09-05 05:26:04 +00:00
|
|
|
asn1_ctx_t asn1_ctx;
|
|
|
|
asn1_ctx_init(&asn1_ctx, ASN1_ENC_PER, FALSE, pinfo);
|
2014-10-06 13:31:47 +00:00
|
|
|
offset = dissect_atn_ulcs_ACSE_apdu(tvb, offset, &asn1_ctx, tree, hf_atn_ulcs_ACSE_apdu_PDU);
|
|
|
|
offset += 7; offset >>= 3;
|
|
|
|
return offset;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/*--- End of included file: packet-atn-ulcs-fn.c ---*/
|
2018-02-18 14:19:48 +00:00
|
|
|
#line 184 "./asn1/atn-ulcs/packet-atn-ulcs-template.c"
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2013-11-22 14:51:52 +00:00
|
|
|
#if 0
|
2013-09-05 05:26:04 +00:00
|
|
|
/* re-implementing external data: packet-per.c */
|
|
|
|
static const value_string per_External_encoding_vals[] = {
|
|
|
|
{ 0, "single-ASN1-type" },
|
|
|
|
{ 1, "octet-aligned" },
|
|
|
|
{ 2, "arbitrary" },
|
|
|
|
{ 0, NULL }
|
|
|
|
};
|
|
|
|
|
|
|
|
/* re-implementing external data: packet-per.c */
|
|
|
|
static const per_choice_t External_encoding_choice[] =
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
{ 0,
|
|
|
|
&hf_atn_ulcs_externalt_encoding_single_asn1_type,
|
|
|
|
ASN1_NO_EXTENSIONS,
|
|
|
|
dissect_atn_ulcs_T_externalt_encoding_single_asn1_type
|
|
|
|
},
|
|
|
|
{ 1,
|
|
|
|
&hf_atn_ulcs_externalt_encoding_octet_aligned,
|
|
|
|
ASN1_NO_EXTENSIONS,
|
|
|
|
dissect_atn_ulcs_T_externalt_encoding_octet_aligned
|
|
|
|
},
|
|
|
|
{ 2,
|
|
|
|
&hf_atn_ulcs_externalt_encoding_arbitrary,
|
|
|
|
ASN1_NO_EXTENSIONS,
|
|
|
|
dissect_atn_ulcs_T_externalt_encoding_arbitrary
|
|
|
|
},
|
|
|
|
{ 0,
|
|
|
|
NULL,
|
|
|
|
0,
|
|
|
|
NULL
|
|
|
|
}
|
2013-09-05 05:26:04 +00:00
|
|
|
};
|
2013-12-11 13:14:00 +00:00
|
|
|
#endif
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
/* ATN Session layer */
|
2015-08-09 16:20:54 +00:00
|
|
|
#define SES_PDU_TYPE_MASK 0xf8
|
|
|
|
#define SES_PARAM_IND_MASK 0x04
|
|
|
|
#define SES_PARAM_B2_MASK 0x02
|
|
|
|
#define SES_PARAM_B1_MASK 0x01
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
static int hf_atn_ses_type = -1;
|
|
|
|
static int hf_atn_ses_param_ind = -1;
|
|
|
|
static int hf_atn_ses_param_b1 = -1;
|
|
|
|
static int hf_atn_ses_param_b2 = -1;
|
|
|
|
|
|
|
|
static gint ett_atn_ses = -1;
|
|
|
|
|
|
|
|
#define ATN_SES_PROTO "ICAO Doc9705 ULCS Session (ISO 8326/8327-1:1994)"
|
|
|
|
|
|
|
|
const value_string atn_ses_param_ind[] =
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
{0, "No Parameter Indication "},
|
|
|
|
{1, "Parameter Indication "},
|
|
|
|
{0, NULL }
|
2013-09-05 05:26:04 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
const value_string srf_b2[] =
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
{0, "Transport Connection is kept"},
|
|
|
|
{1, "Transport Connection is released" },
|
|
|
|
{0, NULL }
|
2013-09-05 05:26:04 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
const value_string srf_b1[] =
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
{0, "Transport Connection is transient"},
|
|
|
|
{1, "Transport Connection is persistent"},
|
|
|
|
{0, NULL }
|
2013-09-05 05:26:04 +00:00
|
|
|
};
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
#define SES_ATN_SCN 0xe8
|
|
|
|
#define SES_ATN_SCNC 0xf8
|
|
|
|
#define SES_ATN_SAC 0xf0
|
|
|
|
#define SES_ATN_SACC 0xd8
|
|
|
|
#define SES_ATN_SRF 0xe0
|
|
|
|
#define SES_ATN_SRFC 0xa0
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
const value_string atn_ses_type[] =
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
{ 0x1d, "Short Connect (SCN) SPDU" },
|
|
|
|
{ 0x1f, "Short Connect Accept (SAC) SPDU" },
|
|
|
|
{ 0x1e, "Short Connect Accept Continue (SACC) SPDU" },
|
|
|
|
{ 0x1c, "Short Refuse (SRF) SPDU" },
|
|
|
|
{ 0x14, "Short Refuse Continue (SRFC) SPDU" },
|
|
|
|
{0, NULL }
|
2013-09-05 05:26:04 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* ATN Presentation layer */
|
|
|
|
#define ATN_PRES_PROTO "ICAO Doc9705 ULCS Presentation (ISO 8822/8823-1:1994)"
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
static int hf_atn_pres_err = -1;
|
2014-08-08 13:19:29 +00:00
|
|
|
static int hf_atn_pres_pdu_type = -1;
|
2015-08-09 16:20:54 +00:00
|
|
|
static gint ett_atn_pres = -1;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
#define ATN_SES_PRES_MASK 0xf803
|
2015-08-09 16:20:54 +00:00
|
|
|
#define PRES_CPR_ER_MASK 0x70
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
/* type determined by SPDU and PPDU */
|
|
|
|
const value_string atn_pres_vals[] =
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
{ 0xe802, "Short Presentation Connect PPDU (CP) " },
|
|
|
|
{ 0xf802, "Short Presentation Connect PPDU (CP) " },
|
|
|
|
{ 0xf002, "Short Presentation Connect Accept PPDU (CPA)" },
|
|
|
|
{ 0xd802, "Short Presentation Connect Accept PPDU (CPA)" },
|
|
|
|
{ 0xe002, "Short Presentation Connect Reject PPDU (CPR)" },
|
|
|
|
{ 0xa002, "Short Presentation Connect Reject PPDU (CPR)" },
|
|
|
|
{0, NULL }
|
2013-09-05 05:26:04 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* Short Presentation Connect Reject PPDU's 0yyy 00zz */
|
|
|
|
const value_string atn_pres_err[] =
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
{ 0x00, "Presentation-user" },
|
|
|
|
{ 0x01, "Reason not specified (transient)"},
|
|
|
|
{ 0x02, "Temporary congestion (transient)"},
|
|
|
|
{ 0x03, "Local limit exceeded (transient)"},
|
|
|
|
{ 0x04, "Called presentation-address unknown (permanent)"},
|
|
|
|
{ 0x05, "Protocol version not supported (permanent)"},
|
|
|
|
{ 0x06, "Default context not supported (permanent)"},
|
|
|
|
{ 0x07, "User data not readable (permanent)"},
|
|
|
|
{ 0, NULL }
|
2013-09-05 05:26:04 +00:00
|
|
|
};
|
|
|
|
|
2013-12-10 10:52:29 +00:00
|
|
|
#if 0
|
2013-09-05 05:26:04 +00:00
|
|
|
/* re-implementing external data: packet-per.c */
|
2015-08-09 16:20:54 +00:00
|
|
|
static int atn_ulcs_Externalt_encoding(
|
|
|
|
tvbuff_t *tvb _U_,
|
|
|
|
int offset _U_,
|
|
|
|
asn1_ctx_t *actx _U_,
|
|
|
|
proto_tree *tree _U_,
|
|
|
|
int hf_index _U_)
|
2013-09-05 05:26:04 +00:00
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
offset = dissect_per_choice(
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index,
|
|
|
|
ett_atn_ulcs_EXTERNALt,
|
|
|
|
External_encoding_choice,
|
|
|
|
&actx->external.encoding);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
return offset;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* re-implementing external data: packet-per.c */
|
2015-08-09 16:20:54 +00:00
|
|
|
static guint32 atn_per_external_type(
|
|
|
|
tvbuff_t *tvb _U_,
|
|
|
|
guint32 offset,
|
|
|
|
asn1_ctx_t *actx,
|
|
|
|
proto_tree *tree _U_,
|
|
|
|
int hf_index _U_,
|
|
|
|
per_type_fn type_cb)
|
2013-09-05 05:26:04 +00:00
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
memset(&actx->external, '\0', sizeof(actx->external));
|
|
|
|
actx->external.hf_index = -1;
|
|
|
|
actx->external.encoding = -1;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
actx->external.u.per.type_cb = type_cb;
|
|
|
|
offset = atn_ulcs_Externalt_encoding(
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
actx,
|
|
|
|
tree,
|
|
|
|
hf_index);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
memset(
|
|
|
|
&actx->external,
|
|
|
|
'\0',
|
|
|
|
sizeof(actx->external));
|
2014-02-26 19:29:17 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
actx->external.hf_index = -1;
|
|
|
|
actx->external.encoding = -1;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
return offset;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
2013-12-10 10:52:29 +00:00
|
|
|
#endif
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
/* determine 24-bit aircraft address(ARS) */
|
|
|
|
/* from 20-byte ATN NSAP. */
|
|
|
|
guint32 get_aircraft_24_bit_address_from_nsap(
|
2015-08-09 16:20:54 +00:00
|
|
|
packet_info *pinfo)
|
2013-09-05 05:26:04 +00:00
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
const guint8* addr = NULL;
|
|
|
|
guint32 ars =0;
|
|
|
|
guint32 adr_prefix =0;
|
|
|
|
|
|
|
|
/* check NSAP address type*/
|
|
|
|
if( (pinfo->src.type != get_osi_address_type()) ||
|
|
|
|
(pinfo->dst.type != get_osi_address_type())) {
|
|
|
|
return ars; }
|
|
|
|
|
|
|
|
/* 20 octets address length required */
|
|
|
|
/* for ATN */
|
|
|
|
if( (pinfo->src.len != 20) ||
|
|
|
|
(pinfo->dst.len != 20)) {
|
|
|
|
return ars; }
|
|
|
|
|
|
|
|
/* first try source address */
|
|
|
|
/* if the src address originates */
|
|
|
|
/* from an aircraft it's downlink */
|
|
|
|
|
|
|
|
/* convert addr into 32-bit integer */
|
|
|
|
addr = (const guint8 *)pinfo->src.data;
|
|
|
|
adr_prefix =
|
|
|
|
((addr[0]<<24) |
|
|
|
|
(addr[1]<<16) |
|
|
|
|
(addr[2]<<8) |
|
|
|
|
addr[3] );
|
|
|
|
|
|
|
|
/* according to ICAO doc9507 Ed2 SV5 */
|
|
|
|
/* clause 5.4.3.8.1.5 and 5.4.3.8.1.3 */
|
|
|
|
/* mobile addresses contain "c1" of "41" */
|
|
|
|
/* in the VER subfield of the NSAP */
|
|
|
|
if((adr_prefix == 0x470027c1) ||
|
|
|
|
(adr_prefix == 0x47002741)) {
|
|
|
|
/* ICAO doc9507 Ed2 SV5 5.4.3.8.4.4 */
|
|
|
|
/* states that the ARS subfield containes */
|
|
|
|
/* the 24-bitaddress of the aircraft */
|
|
|
|
ars = ((addr[8])<<16) |
|
|
|
|
((addr[9])<<8) |
|
|
|
|
(addr[10]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* try destination address */
|
|
|
|
/* if the src address originates */
|
|
|
|
/* from an aircraft it's downlink */
|
|
|
|
|
|
|
|
/* convert addr into 32-bit integer */
|
|
|
|
addr = (const guint8 *)pinfo->dst.data;
|
|
|
|
adr_prefix = ((addr[0]<<24) |
|
|
|
|
(addr[1]<<16) |
|
|
|
|
(addr[2]<<8) |
|
|
|
|
addr[3] );
|
|
|
|
|
|
|
|
/* according to ICAO doc9507 Ed2 SV5 */
|
|
|
|
/* clause 5.4.3.8.1.5 and 5.4.3.8.1.3 */
|
|
|
|
/* mobile addresses contain "c1" of "41" */
|
|
|
|
/* in the VER subfield of the NSAP */
|
|
|
|
if((adr_prefix == 0x470027c1) ||
|
|
|
|
(adr_prefix == 0x47002741)) {
|
|
|
|
/* ICAO doc9507 Ed2 SV5 5.4.3.8.4.4 */
|
|
|
|
/* states that the ARS subfield containes */
|
|
|
|
/* the 24-bitaddress of the aircraft */
|
|
|
|
ars = ((addr[8])<<16) |
|
|
|
|
((addr[9])<<8) |
|
|
|
|
(addr[10]);
|
|
|
|
}
|
|
|
|
return ars;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* determine whether a PDU is uplink or downlink */
|
|
|
|
/* by checking for known aircraft address prefices*/
|
|
|
|
int check_heur_msg_type(packet_info *pinfo _U_)
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
int t = no_msg;
|
|
|
|
const guint8* addr = NULL;
|
|
|
|
guint32 adr_prefix =0;
|
2013-09-05 12:13:00 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* check NSAP address type*/
|
|
|
|
if( (pinfo->src.type != get_osi_address_type()) || (pinfo->dst.type != get_osi_address_type())) {
|
|
|
|
return t; }
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* check NSAP address length; 20 octets address length required */
|
|
|
|
if( (pinfo->src.len != 20) || (pinfo->dst.len != 20)) {
|
|
|
|
return t; }
|
2013-09-05 12:13:00 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
addr = (const guint8 *)pinfo->src.data;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* convert address to 32-bit integer */
|
|
|
|
adr_prefix = ((addr[0]<<24) | (addr[1]<<16) | (addr[2]<<8) | addr[3] );
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* According to the published ATN NSAP adddressing scheme */
|
|
|
|
/* in ICAO doc9705 Ed2 SV5 5.4.3.8.1.3 and 5.4.3.8.1.5 */
|
|
|
|
/* the "VER" field shall be 0x41 ("all Mobile AINSC") or */
|
|
|
|
/* 0xc1 ("all Mobile ATSC") for mobile stations (aka aircraft).*/
|
|
|
|
if((adr_prefix == 0x470027c1) || (adr_prefix == 0x47002741)) {
|
|
|
|
t = dm; /* source is an aircraft: it's a downlink PDU */
|
|
|
|
}
|
2013-09-05 12:13:00 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
addr = (const guint8 *)pinfo->dst.data;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* convert address to 32-bit integer */
|
|
|
|
adr_prefix = ((addr[0]<<24) | (addr[1]<<16) | (addr[2]<<8) | addr[3] );
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* According to the published ATN NSAP adddressing scheme */
|
|
|
|
/* in ICAO doc9705 Ed2 SV5 5.4.3.8.1.3 and 5.4.3.8.1.5 */
|
|
|
|
/* the "VER" field shall be 0x41 ("all Mobile AINSC") or */
|
|
|
|
/* 0xc1 ("all Mobile ATSC") for mobile stations (aka aircraft).*/
|
|
|
|
if((adr_prefix == 0x470027c1) || (adr_prefix == 0x47002741)) {
|
|
|
|
t = um; /* destination is aircraft: uplink PDU */
|
|
|
|
}
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
return t;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* conversation may be used by other dissectors */
|
2013-09-05 12:13:00 +00:00
|
|
|
wmem_tree_t *get_atn_conversation_tree(void){
|
2015-08-09 16:20:54 +00:00
|
|
|
return atn_conversation_tree;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/* find a atn conversation tree node by an endpoint */
|
|
|
|
/* an endpoint is identified by atn src and dst addresses */
|
|
|
|
/* and srcref or dstref (depends on the transport packet type) */
|
|
|
|
/* IMHO it's a hack - conversations should be maintained */
|
|
|
|
/* at transport layer (cotp) but this isn't working yet. */
|
|
|
|
atn_conversation_t * find_atn_conversation(
|
2015-08-09 16:20:54 +00:00
|
|
|
address *address1,
|
|
|
|
guint16 clnp_ref1,
|
|
|
|
address *address2 )
|
2013-09-05 05:26:04 +00:00
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
atn_conversation_t *cv = NULL;
|
|
|
|
guint32 key = 0;
|
|
|
|
guint32 tmp = 0;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-12-02 21:52:35 +00:00
|
|
|
tmp = add_address_to_hash( tmp, address1);
|
2015-08-09 16:20:54 +00:00
|
|
|
key = (tmp << 16) | clnp_ref1 ;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-12-02 21:52:35 +00:00
|
|
|
tmp = add_address_to_hash( tmp, address2);
|
2015-08-09 16:20:54 +00:00
|
|
|
key = (tmp << 24) | key ;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* search for atn conversation */
|
|
|
|
cv = (atn_conversation_t *)
|
|
|
|
wmem_tree_lookup32(get_atn_conversation_tree(),key);
|
2013-09-05 12:13:00 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
return cv;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/* create a atn conversation tree node */
|
|
|
|
/* conversation data is to be allocated externally */
|
|
|
|
/* a conversation may be referenced from both endpoints */
|
|
|
|
atn_conversation_t * create_atn_conversation(
|
2015-08-09 16:20:54 +00:00
|
|
|
address *address1,
|
|
|
|
guint16 clnp_ref1,
|
|
|
|
address *address2,
|
|
|
|
atn_conversation_t *conversation)
|
2013-09-05 05:26:04 +00:00
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
atn_conversation_t *cv = NULL;
|
|
|
|
guint32 key = 0;
|
|
|
|
guint32 tmp = 0;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-12-02 21:52:35 +00:00
|
|
|
tmp = add_address_to_hash( tmp, address1);
|
2015-08-09 16:20:54 +00:00
|
|
|
key = (tmp << 16) | clnp_ref1 ;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-12-02 21:52:35 +00:00
|
|
|
tmp = add_address_to_hash( tmp, address2);
|
2015-08-09 16:20:54 +00:00
|
|
|
key = (tmp << 24) | key ;
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* search for aircraft entry */
|
|
|
|
cv = (atn_conversation_t *)
|
|
|
|
wmem_tree_lookup32(
|
|
|
|
get_atn_conversation_tree(),
|
|
|
|
key);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* tree node already present */
|
|
|
|
if(cv) {
|
|
|
|
return NULL; }
|
2013-09-05 12:13:00 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* insert conversation data in tree*/
|
|
|
|
wmem_tree_insert32(
|
|
|
|
get_atn_conversation_tree(),
|
|
|
|
key,
|
|
|
|
(void*)conversation);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
return conversation;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static int
|
|
|
|
dissect_atn_ulcs(
|
2015-08-09 16:20:54 +00:00
|
|
|
tvbuff_t *tvb,
|
|
|
|
packet_info *pinfo,
|
|
|
|
proto_tree *tree,
|
|
|
|
void *data _U_)
|
2013-09-05 05:26:04 +00:00
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
int offset = 0;
|
|
|
|
proto_item *ti = NULL;
|
|
|
|
proto_tree *atn_ulcs_tree = NULL;
|
|
|
|
guint8 value_pres = 0;
|
|
|
|
guint8 value_ses = 0;
|
|
|
|
guint16 value_ses_pres = 0;
|
|
|
|
|
|
|
|
root_tree = tree;
|
|
|
|
|
|
|
|
/* data pointer */
|
|
|
|
/* decode as PDV-list */
|
|
|
|
if ( (int)(intptr_t) data == FALSE )
|
|
|
|
{
|
|
|
|
ti = proto_tree_add_item(
|
|
|
|
tree,
|
|
|
|
proto_atn_ulcs,
|
|
|
|
tvb,
|
|
|
|
0,
|
|
|
|
0 ,
|
|
|
|
ENC_NA);
|
|
|
|
|
|
|
|
atn_ulcs_tree = proto_item_add_subtree(
|
|
|
|
ti,
|
|
|
|
ett_atn_ulcs);
|
|
|
|
|
|
|
|
dissect_Fully_encoded_data_PDU(
|
|
|
|
tvb,
|
|
|
|
pinfo,
|
|
|
|
atn_ulcs_tree, NULL);
|
|
|
|
|
|
|
|
return offset +
|
|
|
|
tvb_reported_length_remaining(tvb, offset ) ;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* decode as SPDU, PPDU and ACSE PDU */
|
|
|
|
if ( (int)(intptr_t) data == TRUE )
|
|
|
|
{
|
|
|
|
/* get session and presentation PDU's */
|
|
|
|
value_ses_pres = tvb_get_ntohs(tvb, offset);
|
|
|
|
|
|
|
|
/* SPDU: dissect session layer */
|
|
|
|
atn_ulcs_tree = proto_tree_add_subtree(
|
|
|
|
tree, tvb, offset, 0,
|
|
|
|
ett_atn_ses, NULL, ATN_SES_PROTO );
|
|
|
|
|
|
|
|
/* get SPDU (1 octet) */
|
|
|
|
value_ses = tvb_get_guint8(tvb, offset);
|
|
|
|
|
|
|
|
/* SPDU type/identifier */
|
|
|
|
proto_tree_add_item(atn_ulcs_tree,
|
|
|
|
hf_atn_ses_type,
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
1,
|
|
|
|
ENC_BIG_ENDIAN );
|
|
|
|
|
|
|
|
/* SPDU parameters may be present in Short Refuse */
|
|
|
|
/* or Short Refuse Continue SPDU's */
|
|
|
|
switch(value_ses & SES_PDU_TYPE_MASK){
|
|
|
|
case SES_ATN_SRF:
|
|
|
|
case SES_ATN_SRFC:
|
|
|
|
|
|
|
|
/* SPDU parameter presence */
|
|
|
|
proto_tree_add_item(atn_ulcs_tree,
|
|
|
|
hf_atn_ses_param_ind,
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
1,
|
|
|
|
ENC_BIG_ENDIAN );
|
|
|
|
|
|
|
|
/* parameter B2 */
|
|
|
|
proto_tree_add_item(atn_ulcs_tree,
|
|
|
|
hf_atn_ses_param_b2,
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
1,
|
|
|
|
ENC_BIG_ENDIAN );
|
|
|
|
|
|
|
|
/* parameter B1 */
|
|
|
|
proto_tree_add_item(atn_ulcs_tree,
|
|
|
|
hf_atn_ses_param_b1,
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
1,
|
|
|
|
ENC_BIG_ENDIAN );
|
|
|
|
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
/* PPDU: dissect presentation layer */
|
|
|
|
atn_ulcs_tree = proto_tree_add_subtree(
|
|
|
|
tree, tvb, offset, 0,
|
|
|
|
ett_atn_pres, NULL, ATN_PRES_PROTO );
|
|
|
|
|
|
|
|
value_pres = tvb_get_guint8(tvb, offset);
|
|
|
|
|
|
|
|
/* need session context to identify PPDU type */
|
|
|
|
/* note: */
|
|
|
|
proto_tree_add_uint_format(atn_ulcs_tree, hf_atn_pres_pdu_type,
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
1,
|
|
|
|
value_ses_pres,
|
|
|
|
"%s (0x%02x)",
|
|
|
|
val_to_str( value_ses_pres & ATN_SES_PRES_MASK , atn_pres_vals, "?"),
|
|
|
|
value_pres);
|
|
|
|
|
|
|
|
/* PPDU errorcode in case of SRF/CPR */
|
|
|
|
switch(value_ses & SES_PDU_TYPE_MASK){
|
|
|
|
case SES_ATN_SRF:
|
|
|
|
case SES_ATN_SRFC:
|
|
|
|
proto_tree_add_item(
|
|
|
|
atn_ulcs_tree,
|
|
|
|
hf_atn_pres_err,
|
|
|
|
tvb,
|
|
|
|
offset,
|
|
|
|
1,
|
|
|
|
ENC_BIG_ENDIAN );
|
|
|
|
break;
|
|
|
|
default:
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
offset++;
|
|
|
|
|
|
|
|
/* ACSE PDU: dissect application layer */
|
|
|
|
atn_ulcs_tree = proto_tree_add_subtree(
|
|
|
|
tree, tvb, offset, 0,
|
|
|
|
ett_atn_acse, NULL, ATN_ACSE_PROTO );
|
|
|
|
|
|
|
|
dissect_ACSE_apdu_PDU(
|
|
|
|
tvb_new_subset_remaining(tvb, offset),
|
|
|
|
pinfo,
|
|
|
|
atn_ulcs_tree, NULL);
|
|
|
|
|
|
|
|
return offset +
|
|
|
|
tvb_reported_length_remaining(tvb, offset );
|
|
|
|
}
|
|
|
|
return offset;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
static gboolean dissect_atn_ulcs_heur(
|
2015-08-09 16:20:54 +00:00
|
|
|
tvbuff_t *tvb,
|
|
|
|
packet_info *pinfo,
|
|
|
|
proto_tree *tree,
|
|
|
|
void *data _U_)
|
2014-02-26 19:29:17 +00:00
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
/* do we have enough data*/
|
|
|
|
/* at least session + presentation data or pdv-list */
|
|
|
|
if (tvb_captured_length(tvb) < 2){
|
|
|
|
return FALSE; }
|
|
|
|
|
|
|
|
/* check for session/presentation/ACSE PDU's */
|
|
|
|
/* SPDU and PPDU are one octet each */
|
|
|
|
switch( tvb_get_ntohs(tvb, 0) & 0xf8ff ){
|
|
|
|
case 0xe802: /* SCN + CP*/
|
|
|
|
case 0xf802: /* SCNC + CP */
|
|
|
|
case 0xf002: /* SAC + CPA */
|
|
|
|
case 0xd802: /* SACC + CPA */
|
|
|
|
case 0xe002: /* SRF + CPR + R0 */
|
|
|
|
case 0xe012: /* SRF + CPR + R1 */
|
|
|
|
case 0xe022: /* SRF + CPR + R2 */
|
|
|
|
case 0xe032: /* SRF + CPR + R3 */
|
|
|
|
case 0xe042: /* SRF + CPR + R4 */
|
|
|
|
case 0xe052: /* SRF + CPR + R5 */
|
|
|
|
case 0xe062: /* SRF + CPR + R6 */
|
|
|
|
case 0xe072: /* SRF + CPR + R7 */
|
|
|
|
case 0xa002: /* SRFC + CPR + R0*/
|
|
|
|
case 0xa012: /* SRFC + CPR + R1*/
|
|
|
|
case 0xa022: /* SRFC + CPR + R2*/
|
|
|
|
case 0xa032: /* SRFC + CPR + R3*/
|
|
|
|
case 0xa042: /* SRFC + CPR + R4*/
|
|
|
|
case 0xa052: /* SRFC + CPR + R5*/
|
|
|
|
case 0xa062: /* SRFC + CPR + R6*/
|
|
|
|
case 0xa072: /* SRFC + CPR + R7*/
|
|
|
|
/* indicate to dissector routine */
|
|
|
|
/* that a least SPDU, PPDU and */
|
|
|
|
/* ACSE PDU is present */
|
|
|
|
dissect_atn_ulcs(
|
|
|
|
tvb,
|
|
|
|
pinfo,
|
|
|
|
tree,
|
|
|
|
(void*) TRUE);
|
|
|
|
return TRUE;
|
|
|
|
default: /* no SPDU */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* try to detect "Fully-encoded-data" heuristically */
|
|
|
|
/* the constants listed match the ASN.1 PER encoding */
|
|
|
|
/* of PDV-List */
|
|
|
|
switch( tvb_get_ntohs(tvb, 0) & 0xfff0 ){
|
|
|
|
case 0x0020: /* acse-apdu */
|
|
|
|
case 0x00a0: /* user-ase-apdu */
|
|
|
|
/* indicate to dissector routine */
|
|
|
|
/* that a PDV-list PDU is present */
|
|
|
|
/* */
|
|
|
|
/* PDV-list PDU may contain */
|
|
|
|
/* application protocol data (CM, CPDLC) */
|
|
|
|
/* or an ACSE PDU */
|
|
|
|
dissect_atn_ulcs(tvb, pinfo, tree, (void*) FALSE);
|
|
|
|
return TRUE;
|
|
|
|
break;
|
|
|
|
default: /* no or unsupported PDU */
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
return FALSE;
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void proto_register_atn_ulcs (void)
|
|
|
|
{
|
2015-08-09 16:20:54 +00:00
|
|
|
static hf_register_info hf_atn_ulcs[] = {
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
/*--- Included file: packet-atn-ulcs-hfarr.c ---*/
|
2016-03-09 03:17:51 +00:00
|
|
|
#line 1 "./asn1/atn-ulcs/packet-atn-ulcs-hfarr.c"
|
2013-09-05 05:26:04 +00:00
|
|
|
{ &hf_atn_ulcs_Fully_encoded_data_PDU,
|
|
|
|
{ "Fully-encoded-data", "atn-ulcs.Fully_encoded_data",
|
|
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_ACSE_apdu_PDU,
|
|
|
|
{ "ACSE-apdu", "atn-ulcs.ACSE_apdu",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_ACSE_apdu_vals), 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_Fully_encoded_data_item,
|
|
|
|
{ "PDV-list", "atn-ulcs.PDV_list_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_transfer_syntax_name,
|
|
|
|
{ "transfer-syntax-name", "atn-ulcs.transfer_syntax_name",
|
|
|
|
FT_OID, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_presentation_context_identifier,
|
|
|
|
{ "presentation-context-identifier", "atn-ulcs.presentation_context_identifier",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_Presentation_context_identifier_vals), 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_presentation_data_values,
|
|
|
|
{ "presentation-data-values", "atn-ulcs.presentation_data_values",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_T_presentation_data_values_vals), 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_pdv_list_presentation_data_values_single_asn1_type,
|
|
|
|
{ "single-ASN1-type", "atn-ulcs.single_ASN1_type_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
"T_pdv_list_presentation_data_values_single_asn1_type", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_octet_aligned,
|
|
|
|
{ "octet-aligned", "atn-ulcs.octet_aligned",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"OCTET_STRING", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_pdv_list_presentation_data_values_arbitrary,
|
|
|
|
{ "arbitrary", "atn-ulcs.arbitrary",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"T_pdv_list_presentation_data_values_arbitrary", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_direct_reference,
|
|
|
|
{ "direct-reference", "atn-ulcs.direct_reference",
|
|
|
|
FT_OID, BASE_NONE, NULL, 0,
|
|
|
|
"OBJECT_IDENTIFIER", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_indirect_reference,
|
|
|
|
{ "indirect-reference", "atn-ulcs.indirect_reference",
|
|
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
|
|
"INTEGER", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_data_value_descriptor,
|
|
|
|
{ "data-value-descriptor", "atn-ulcs.data_value_descriptor",
|
|
|
|
FT_STRING, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_encoding,
|
|
|
|
{ "encoding", "atn-ulcs.encoding",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_T_encoding_vals), 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_externalt_encoding_single_asn1_type,
|
|
|
|
{ "single-ASN1-type", "atn-ulcs.single_ASN1_type_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
"T_externalt_encoding_single_asn1_type", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_externalt_encoding_octet_aligned,
|
|
|
|
{ "octet-aligned", "atn-ulcs.octet_aligned",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"T_externalt_encoding_octet_aligned", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_externalt_encoding_arbitrary,
|
|
|
|
{ "arbitrary", "atn-ulcs.arbitrary",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"T_externalt_encoding_arbitrary", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_aarq,
|
|
|
|
{ "aarq", "atn-ulcs.aarq_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
"AARQ_apdu", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_aare,
|
|
|
|
{ "aare", "atn-ulcs.aare_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
"AARE_apdu", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_rlrq,
|
|
|
|
{ "rlrq", "atn-ulcs.rlrq_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
"RLRQ_apdu", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_rlre,
|
|
|
|
{ "rlre", "atn-ulcs.rlre_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
"RLRE_apdu", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_abrt,
|
|
|
|
{ "abrt", "atn-ulcs.abrt_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
"ABRT_apdu", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_aarq_apdu_protocol_version,
|
|
|
|
{ "protocol-version", "atn-ulcs.protocol_version",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"T_aarq_apdu_protocol_version", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_application_context_name,
|
|
|
|
{ "application-context-name", "atn-ulcs.application_context_name",
|
|
|
|
FT_OID, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_called_AP_title,
|
|
|
|
{ "called-AP-title", "atn-ulcs.called_AP_title",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_AP_title_vals), 0,
|
|
|
|
"AP_title", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_called_AE_qualifier,
|
|
|
|
{ "called-AE-qualifier", "atn-ulcs.called_AE_qualifier",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_AE_qualifier_vals), 0,
|
|
|
|
"AE_qualifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_called_AP_invocation_identifier,
|
|
|
|
{ "called-AP-invocation-identifier", "atn-ulcs.called_AP_invocation_identifier",
|
|
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
|
|
"AP_invocation_identifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_called_AE_invocation_identifier,
|
|
|
|
{ "called-AE-invocation-identifier", "atn-ulcs.called_AE_invocation_identifier",
|
|
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
|
|
"AE_invocation_identifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_calling_AP_title,
|
|
|
|
{ "calling-AP-title", "atn-ulcs.calling_AP_title",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_AP_title_vals), 0,
|
|
|
|
"AP_title", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_calling_AE_qualifier,
|
|
|
|
{ "calling-AE-qualifier", "atn-ulcs.calling_AE_qualifier",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_AE_qualifier_vals), 0,
|
|
|
|
"AE_qualifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_calling_AP_invocation_identifier,
|
|
|
|
{ "calling-AP-invocation-identifier", "atn-ulcs.calling_AP_invocation_identifier",
|
|
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
|
|
"AP_invocation_identifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_calling_AE_invocation_identifier,
|
|
|
|
{ "calling-AE-invocation-identifier", "atn-ulcs.calling_AE_invocation_identifier",
|
|
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
|
|
"AE_invocation_identifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_sender_acse_requirements,
|
|
|
|
{ "sender-acse-requirements", "atn-ulcs.sender_acse_requirements",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"ACSE_requirements", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_mechanism_name,
|
|
|
|
{ "mechanism-name", "atn-ulcs.mechanism_name",
|
|
|
|
FT_OID, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_calling_authentication_value,
|
|
|
|
{ "calling-authentication-value", "atn-ulcs.calling_authentication_value",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_Authentication_value_vals), 0,
|
|
|
|
"Authentication_value", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_application_context_name_list,
|
|
|
|
{ "application-context-name-list", "atn-ulcs.application_context_name_list",
|
|
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_implementation_information,
|
|
|
|
{ "implementation-information", "atn-ulcs.implementation_information",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"Implementation_data", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_user_information,
|
|
|
|
{ "user-information", "atn-ulcs.user_information",
|
|
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
|
|
"Association_information", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_aare_apdu_protocol_version,
|
|
|
|
{ "protocol-version", "atn-ulcs.protocol_version",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"T_aare_apdu_protocol_version", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_result,
|
|
|
|
{ "result", "atn-ulcs.result",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_Associate_result_vals), 0,
|
|
|
|
"Associate_result", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_result_source_diagnostic,
|
|
|
|
{ "result-source-diagnostic", "atn-ulcs.result_source_diagnostic",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_Associate_source_diagnostic_vals), 0,
|
|
|
|
"Associate_source_diagnostic", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_responding_AP_title,
|
|
|
|
{ "responding-AP-title", "atn-ulcs.responding_AP_title",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_AP_title_vals), 0,
|
|
|
|
"AP_title", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_responding_AE_qualifier,
|
|
|
|
{ "responding-AE-qualifier", "atn-ulcs.responding_AE_qualifier",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_AE_qualifier_vals), 0,
|
|
|
|
"AE_qualifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_responding_AP_invocation_identifier,
|
|
|
|
{ "responding-AP-invocation-identifier", "atn-ulcs.responding_AP_invocation_identifier",
|
|
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
|
|
"AP_invocation_identifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_responding_AE_invocation_identifier,
|
|
|
|
{ "responding-AE-invocation-identifier", "atn-ulcs.responding_AE_invocation_identifier",
|
|
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
|
|
"AE_invocation_identifier", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_responder_acse_requirements,
|
|
|
|
{ "responder-acse-requirements", "atn-ulcs.responder_acse_requirements",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"ACSE_requirements", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_responding_authentication_value,
|
|
|
|
{ "responding-authentication-value", "atn-ulcs.responding_authentication_value",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_Authentication_value_vals), 0,
|
|
|
|
"Authentication_value", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_rlrq_apdu_request_reason,
|
|
|
|
{ "reason", "atn-ulcs.reason",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_Release_request_reason_vals), 0,
|
|
|
|
"Release_request_reason", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_rlre_apdu_response_reason,
|
|
|
|
{ "reason", "atn-ulcs.reason",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_Release_response_reason_vals), 0,
|
|
|
|
"Release_response_reason", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_abort_source,
|
|
|
|
{ "abort-source", "atn-ulcs.abort_source",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_ABRT_source_vals), 0,
|
|
|
|
"ABRT_source", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_abort_diagnostic,
|
|
|
|
{ "abort-diagnostic", "atn-ulcs.abort_diagnostic",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_ABRT_diagnostic_vals), 0,
|
|
|
|
"ABRT_diagnostic", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_Application_context_name_list_item,
|
|
|
|
{ "Application-context-name", "atn-ulcs.Application_context_name",
|
|
|
|
FT_OID, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_ap_title_form2,
|
|
|
|
{ "ap-title-form2", "atn-ulcs.ap_title_form2",
|
|
|
|
FT_OID, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_ap_title_form1,
|
|
|
|
{ "ap-title-form1", "atn-ulcs.ap_title_form1",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_Name_vals), 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_ae_qualifier_form2,
|
|
|
|
{ "ae-qualifier-form2", "atn-ulcs.ae_qualifier_form2",
|
|
|
|
FT_INT32, BASE_DEC, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_ae_qualifier_form1,
|
|
|
|
{ "ae-qualifier-form1", "atn-ulcs.ae_qualifier_form1",
|
|
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_acse_service_user,
|
|
|
|
{ "acse-service-user", "atn-ulcs.acse_service_user",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_T_acse_service_user_vals), 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_acse_service_provider,
|
|
|
|
{ "acse-service-provider", "atn-ulcs.acse_service_provider",
|
|
|
|
FT_UINT32, BASE_DEC, VALS(atn_ulcs_T_acse_service_provider_vals), 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_Association_information_item,
|
|
|
|
{ "EXTERNALt", "atn-ulcs.EXTERNALt_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_charstring,
|
|
|
|
{ "charstring", "atn-ulcs.charstring",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"OCTET_STRING", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_bitstring,
|
|
|
|
{ "bitstring", "atn-ulcs.bitstring",
|
|
|
|
FT_BYTES, BASE_NONE, NULL, 0,
|
|
|
|
"BIT_STRING", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_external,
|
|
|
|
{ "external", "atn-ulcs.external_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_other,
|
|
|
|
{ "other", "atn-ulcs.other_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_other_mechanism_name,
|
|
|
|
{ "other-mechanism-name", "atn-ulcs.other_mechanism_name",
|
|
|
|
FT_OID, BASE_NONE, NULL, 0,
|
|
|
|
"OBJECT_IDENTIFIER", HFILL }},
|
|
|
|
{ &hf_atn_ulcs_other_mechanism_value,
|
|
|
|
{ "other-mechanism-value", "atn-ulcs.other_mechanism_value_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_rdnSequence,
|
|
|
|
{ "rdnSequence", "atn-ulcs.rdnSequence",
|
|
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_RDNSequence_item,
|
|
|
|
{ "RelativeDistinguishedName", "atn-ulcs.RelativeDistinguishedName",
|
|
|
|
FT_UINT32, BASE_DEC, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_RelativeDistinguishedName_item,
|
|
|
|
{ "AttributeTypeAndValue", "atn-ulcs.AttributeTypeAndValue_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_null,
|
|
|
|
{ "null", "atn-ulcs.null_element",
|
|
|
|
FT_NONE, BASE_NONE, NULL, 0,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_T_aarq_apdu_protocol_version_version1,
|
2019-04-04 12:49:57 +00:00
|
|
|
{ "version1", "atn.ulcs.T.aarq.apdu.protocol.version.version1",
|
2013-09-05 05:26:04 +00:00
|
|
|
FT_BOOLEAN, 8, NULL, 0x80,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_T_aare_apdu_protocol_version_version1,
|
2019-04-04 12:49:57 +00:00
|
|
|
{ "version1", "atn.ulcs.T.aare.apdu.protocol.version.version1",
|
2013-09-05 05:26:04 +00:00
|
|
|
FT_BOOLEAN, 8, NULL, 0x80,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_ACSE_requirements_authentication,
|
2019-04-04 12:49:57 +00:00
|
|
|
{ "authentication", "atn.ulcs.ACSE.requirements.authentication",
|
2013-09-05 05:26:04 +00:00
|
|
|
FT_BOOLEAN, 8, NULL, 0x80,
|
|
|
|
NULL, HFILL }},
|
|
|
|
{ &hf_atn_ulcs_ACSE_requirements_application_context_negotiation,
|
2019-04-04 12:49:57 +00:00
|
|
|
{ "application-context-negotiation", "atn.ulcs.ACSE.requirements.application.context.negotiation",
|
2013-09-05 05:26:04 +00:00
|
|
|
FT_BOOLEAN, 8, NULL, 0x40,
|
|
|
|
NULL, HFILL }},
|
|
|
|
|
|
|
|
/*--- End of included file: packet-atn-ulcs-hfarr.c ---*/
|
2018-02-18 14:19:48 +00:00
|
|
|
#line 776 "./asn1/atn-ulcs/packet-atn-ulcs-template.c"
|
2015-08-09 16:20:54 +00:00
|
|
|
{&hf_atn_ses_type,
|
|
|
|
{ "SPDU Type",
|
|
|
|
"atn-ulcs.ses.type",
|
|
|
|
FT_UINT8,
|
|
|
|
BASE_HEX,
|
|
|
|
VALS(atn_ses_type),
|
|
|
|
0xf8,
|
|
|
|
"Indicates presence of session parameters",
|
|
|
|
HFILL}},
|
|
|
|
{&hf_atn_ses_param_ind,
|
|
|
|
{ "SPDU Parameter Indication",
|
|
|
|
"atn-ulcs.ses.parameter-indication",
|
|
|
|
FT_UINT8,
|
|
|
|
BASE_HEX,
|
|
|
|
VALS(atn_ses_param_ind),
|
|
|
|
SES_PARAM_IND_MASK,
|
|
|
|
"Indicates presence of session parameters",
|
|
|
|
HFILL}},
|
|
|
|
{&hf_atn_ses_param_b1,
|
|
|
|
{ "SRF Parameter B1",
|
|
|
|
"atn-ulcs.ses.srf-b1",
|
|
|
|
FT_UINT8,
|
|
|
|
BASE_HEX,
|
|
|
|
VALS(srf_b1),
|
|
|
|
0x01,
|
|
|
|
"Determines if transport connection reject is transient or persistent",
|
|
|
|
HFILL}},
|
|
|
|
{&hf_atn_ses_param_b2,
|
|
|
|
{ "SRF Parameter B2",
|
|
|
|
"atn-ulcs.ses.srf-b2",
|
|
|
|
FT_UINT8,
|
|
|
|
BASE_HEX,
|
|
|
|
VALS(srf_b2),
|
|
|
|
0x02,
|
|
|
|
"Determines if transport connection is retained or released",
|
|
|
|
HFILL}},
|
|
|
|
{ &hf_atn_pres_err,
|
|
|
|
{ "Error Code", "atn-ulcs.pres.cpr-error",
|
|
|
|
FT_UINT8,
|
|
|
|
BASE_HEX,
|
|
|
|
VALS(atn_pres_err),
|
|
|
|
PRES_CPR_ER_MASK,
|
|
|
|
NULL,
|
|
|
|
HFILL}},
|
|
|
|
{ &hf_atn_pres_pdu_type,
|
|
|
|
{ "PDU type", "atn-ulcs.pres.pdu_type",
|
|
|
|
FT_UINT8,
|
|
|
|
BASE_HEX,
|
|
|
|
NULL,
|
|
|
|
ATN_SES_PRES_MASK,
|
|
|
|
NULL,
|
|
|
|
HFILL}},
|
|
|
|
};
|
|
|
|
|
|
|
|
static gint *ett[] = {
|
2013-09-05 05:26:04 +00:00
|
|
|
|
|
|
|
/*--- Included file: packet-atn-ulcs-ettarr.c ---*/
|
2016-03-09 03:17:51 +00:00
|
|
|
#line 1 "./asn1/atn-ulcs/packet-atn-ulcs-ettarr.c"
|
2013-09-05 05:26:04 +00:00
|
|
|
&ett_atn_ulcs_Fully_encoded_data,
|
|
|
|
&ett_atn_ulcs_PDV_list,
|
|
|
|
&ett_atn_ulcs_T_presentation_data_values,
|
|
|
|
&ett_atn_ulcs_EXTERNALt,
|
|
|
|
&ett_atn_ulcs_T_encoding,
|
|
|
|
&ett_atn_ulcs_ACSE_apdu,
|
|
|
|
&ett_atn_ulcs_AARQ_apdu,
|
|
|
|
&ett_atn_ulcs_T_aarq_apdu_protocol_version,
|
|
|
|
&ett_atn_ulcs_AARE_apdu,
|
|
|
|
&ett_atn_ulcs_T_aare_apdu_protocol_version,
|
|
|
|
&ett_atn_ulcs_RLRQ_apdu,
|
|
|
|
&ett_atn_ulcs_RLRE_apdu,
|
|
|
|
&ett_atn_ulcs_ABRT_apdu,
|
|
|
|
&ett_atn_ulcs_ACSE_requirements,
|
|
|
|
&ett_atn_ulcs_Application_context_name_list,
|
|
|
|
&ett_atn_ulcs_AP_title,
|
|
|
|
&ett_atn_ulcs_AE_qualifier,
|
|
|
|
&ett_atn_ulcs_Associate_source_diagnostic,
|
|
|
|
&ett_atn_ulcs_Association_information,
|
|
|
|
&ett_atn_ulcs_Authentication_value,
|
|
|
|
&ett_atn_ulcs_T_other,
|
|
|
|
&ett_atn_ulcs_Name,
|
|
|
|
&ett_atn_ulcs_RDNSequence,
|
|
|
|
&ett_atn_ulcs_RelativeDistinguishedName,
|
|
|
|
&ett_atn_ulcs_AttributeTypeAndValue,
|
|
|
|
|
|
|
|
/*--- End of included file: packet-atn-ulcs-ettarr.c ---*/
|
2018-02-18 14:19:48 +00:00
|
|
|
#line 832 "./asn1/atn-ulcs/packet-atn-ulcs-template.c"
|
2015-08-09 16:20:54 +00:00
|
|
|
&ett_atn_ses,
|
|
|
|
&ett_atn_pres,
|
|
|
|
&ett_atn_acse,
|
|
|
|
&ett_atn_ulcs
|
|
|
|
};
|
2013-09-05 12:13:00 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
proto_atn_ulcs = proto_register_protocol (
|
|
|
|
ATN_ULCS_PROTO ,
|
|
|
|
"ATN-ULCS",
|
|
|
|
"atn-ulcs");
|
2013-09-05 12:13:00 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
proto_register_field_array (
|
|
|
|
proto_atn_ulcs,
|
|
|
|
hf_atn_ulcs,
|
|
|
|
array_length(hf_atn_ulcs));
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
proto_register_subtree_array (
|
|
|
|
ett,
|
|
|
|
array_length (ett));
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-12-09 02:06:20 +00:00
|
|
|
register_dissector(
|
2015-08-09 16:20:54 +00:00
|
|
|
"atn-ulcs",
|
|
|
|
dissect_atn_ulcs,
|
|
|
|
proto_atn_ulcs);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* initiate sub dissector list */
|
2016-03-13 11:51:45 +00:00
|
|
|
atn_ulcs_heur_subdissector_list = register_heur_dissector_list("atn-ulcs", proto_atn_ulcs);
|
2013-09-05 05:26:04 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* init aare/aare data */
|
|
|
|
aarq_data_tree = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
|
2013-09-05 12:13:00 +00:00
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
atn_conversation_tree = wmem_tree_new_autoreset(wmem_epan_scope(), wmem_file_scope());
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void proto_reg_handoff_atn_ulcs(void)
|
|
|
|
{
|
2016-03-16 13:02:52 +00:00
|
|
|
atn_cm_handle = find_dissector_add_dependency("atn-cm", proto_atn_ulcs);
|
|
|
|
atn_cpdlc_handle = find_dissector_add_dependency("atn-cpdlc", proto_atn_ulcs);
|
|
|
|
|
2015-08-09 16:20:54 +00:00
|
|
|
/* add session dissector to cotp dissector list dissector list*/
|
|
|
|
heur_dissector_add(
|
|
|
|
"cotp",
|
|
|
|
dissect_atn_ulcs_heur,
|
|
|
|
"ATN-ULCS over COTP",
|
|
|
|
"atn-ucls_cotp",
|
|
|
|
proto_atn_ulcs, HEURISTIC_ENABLE);
|
2013-09-05 05:26:04 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
/*
|
2019-07-26 18:43:17 +00:00
|
|
|
* Editor modelines - https://www.wireshark.org/tools/modelines.html
|
2013-09-05 05:26:04 +00:00
|
|
|
*
|
|
|
|
* Local variables:
|
2015-08-09 16:20:54 +00:00
|
|
|
* c-basic-offset: 4
|
|
|
|
* tab-width: 8
|
|
|
|
* indent-tabs-mode: nil
|
2013-09-05 05:26:04 +00:00
|
|
|
* End:
|
|
|
|
*
|
2015-08-09 16:20:54 +00:00
|
|
|
* vi: set shiftwidth=4 tabstop=8 expandtab:
|
|
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
2013-09-05 05:26:04 +00:00
|
|
|
*/
|