forked from osmocom/wireshark
f331077a60
while this should improve performance by unmeasurably little it does have the sideeffect that once we finish the rewrite tcp analysis might actually work and work well even for tcp over tcp tunnelling. this also means that if you include packet-tcp.h you also need to include emem.h . svn path=/trunk/; revision=17681
1296 lines
47 KiB
C
1296 lines
47 KiB
C
/* packet-s5066.c
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* Routines for STANAG 5066 SIS layer packet disassembly
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*
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* $Id$
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*
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* Copyright (c) 2005 by Menno Andriesse <s5066 [AT] nc3a.nato.int>
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*
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* Ethereal - Network traffic analyzer
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* By Gerald Combs <gerald@ethereal.com>
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* Copyright 1999 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#include <gmodule.h>
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#include <epan/packet.h>
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#include <epan/prefs.h>
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#include <epan/emem.h>
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#include <epan/dissectors/packet-tcp.h> /* For tcp_dissect_pdus() */
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/* Forward reference */
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/* Register functions */
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void proto_register_s5066(void);
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void proto_reg_handoff_s5066(void);
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/* Main dissectors */
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static void dissect_s5066_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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static guint get_s5066_pdu_len(tvbuff_t *tvb, int offset);
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static void dissect_s5066_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree);
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/* Service type and address dissectors */
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static guint dissect_s5066_servicetype(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_address(tvbuff_t *tvb, guint offset, proto_tree *tree, gint source);
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/* S-Primitive dissectors */
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static guint dissect_s5066_01(tvbuff_t *tvb, guint offset, proto_tree *tree);
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/* static guint dissect_s5066_02(tvbuff_t *tvb, guint offset, proto_tree *tree); */
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static guint dissect_s5066_03(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_04(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_05(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_06(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_07(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_08(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_09(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_10(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_11(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_12(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_13(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_14(tvbuff_t *tvb, guint offset, proto_tree *tree);
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/* static guint dissect_s5066_15(tvbuff_t *tvb, guint offset, proto_tree *tree); */
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/* static guint dissect_s5066_16(tvbuff_t *tvb, guint offset, proto_tree *tree); */
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/* static guint dissect_s5066_17(tvbuff_t *tvb, guint offset, proto_tree *tree); */
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static guint dissect_s5066_18(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size);
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static guint dissect_s5066_19(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size);
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static guint dissect_s5066_20(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_21(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size);
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static guint dissect_s5066_22(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_23(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_24(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_25(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size);
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static guint dissect_s5066_26(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static guint dissect_s5066_27(tvbuff_t *tvb, guint offset, proto_tree *tree);
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static gint proto_s5066 = -1;
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static dissector_handle_t s5066_tcp_handle;
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static dissector_handle_t data_handle;
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/* Enable desegmentation of S5066 over TCP */
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static gboolean s5066_desegment = TRUE;
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/* Dissect old 'edition 1' of STANAG 5066 (It lacks the 'version' field.) */
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static gboolean s5066_edition_one = FALSE;
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/* This port is registered with IANA */
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static gint global_s5066_port = 5066;
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/* Size of header outside 'size' field */
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static gint s5066_header_size = 5;
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/* Offset of 'size' field */
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static gint s5066_size_offset = 3;
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/* Sync should be 0x90EB */
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static gint hf_s5066_sync_word = -1;
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/* Version should be 0x00 */
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static gint hf_s5066_version = -1;
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/* Total size of the PDU, excluding this size and previous fields */
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/* So total size is this + 5 bytes (s5066_header_size) */
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static gint hf_s5066_size = -1;
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/* Th type of PDU */
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static gint hf_s5066_type = -1;
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static const value_string s5066_pdu_type[] = {
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{ 1, "S_BIND_REQUEST"},
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{ 2, "S_UNBIND_REQUEST"},
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{ 3, "S_BIND_ACCEPTED"},
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{ 4, "S_BIND_REJECTED"},
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{ 5, "S_UNBIND_INDICATION"},
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{ 6, "S_HARD_LINK_ESTABLISH"},
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{ 7, "S_HARD_LINK_TERMINATE"},
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{ 8, "S_HARD_LINK_ESTABLISHED"},
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{ 9, "S_HARD_LINK_REJECTED"},
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{10, "S_HARD_LINK_TERMINATED"},
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{11, "S_HARD_LINK_INDICATION"},
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{12, "S_HARD_LINK_ACCEPT"},
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{13, "S_HARD_LINK_REJECT"},
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{14, "S_SUBNET_AVAILABILITY"},
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{15, "S_DATAFLOW_ON"},
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{16, "S_DATAFLOW_OFF"},
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{17, "S_KEEP_ALIVE"},
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{18, "S_MANAGEMENT_MESSAGE_REQUEST"},
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{19, "S_MANAGEMENT_MESSAGE_INDICATION"},
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{20, "S_UNIDATA_REQUEST"},
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{21, "S_UNIDATA_INDICATION"},
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{22, "S_UNIDATA_REQUEST_CONFIRM"},
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{23, "S_UNIDATA_REQUEST_REJECTED"},
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{24, "S_EXPEDITED_UNIDATA_REQUEST"},
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{25, "S_EXPEDITED_UNIDATA_INDICATION"},
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{26, "S_EXPEDITED_UNIDATA_REQUEST_CONFIRM"},
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{27, "S_EXPEDITED_UNIDATA_REQUEST_REJECTED"},
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{ 0, NULL },
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};
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/* STANAG 5066 Address */
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/* Size is defined in nibbles (4 bits) */
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static gint hf_s5066_ad_size = -1;
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/* Group flag: 0 = false, 1 = true */
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static gint hf_s5066_ad_group = -1;
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/* The remainder of the 4 bytes form the address */
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static gint hf_s5066_ad_address = -1;
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/* Service type */
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/* Transmission mode: */
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static gint hf_s5066_st_txmode = -1;
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static const value_string s5066_st_txmode[] = {
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{ 0, "Ignore service type field"},
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{ 1, "ARQ"},
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{ 2, "Non-ARQ (Broacast)"},
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{ 3, "Other non-ARQ types"},
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{ 4, "Other non-ARQ types"},
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{ 5, "Other non-ARQ types"},
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{ 6, "Other non-ARQ types"},
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{ 7, "Other non-ARQ types"},
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{ 8, "Other non-ARQ types"},
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{ 9, "Other non-ARQ types"},
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{10, "Other non-ARQ types"},
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{11, "Other non-ARQ types"},
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{12, "Other non-ARQ types"},
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{13, "Other non-ARQ types"},
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{14, "Other non-ARQ types"},
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{15, "Other non-ARQ types"},
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{ 0, NULL },
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};
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/* Delivery confirmation: */
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static gint hf_s5066_st_delivery_confirmation = -1;
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static const value_string s5066_st_delivery_confirmation[] = {
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{ 0, "No confirmation"},
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{ 1, "Node delivery confirmation"},
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{ 2, "Client delivery confirmation"},
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{ 3, "-- Not defined --"},
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{ 0, NULL },
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};
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/* Delivery order: */
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static gint hf_s5066_st_delivery_order = -1;
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static const value_string s5066_st_delivery_order[] = {
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{ 0, "In-order delivery"},
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{ 1, "As-they-arrive"},
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{ 0, NULL },
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};
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/* Extended field present: (Never in the current version.) */
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static gint hf_s5066_st_extended = -1;
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static const value_string s5066_st_extended[] = {
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{ 0, "No extended field"},
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{ 1, "Extended field follows"},
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{ 0, NULL },
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};
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/* Number of retransmissions when in Non-ARQ: */
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static gint hf_s5066_st_retries = -1;
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/* Type 1: S_BIND_REQUEST */
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static gint hf_s5066_01_sapid = -1;
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static gint hf_s5066_01_rank = -1;
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static gint hf_s5066_01_unused = -1;
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/* Type 2: S_UNBIND_REQUEST */
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/* --- no subfields --- */
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/* Type 3: S_BIND_ACCEPTED */
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static gint hf_s5066_03_sapid = -1;
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static gint hf_s5066_03_unused = -1;
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static gint hf_s5066_03_mtu = -1;
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/* Type 4: S_BIND_REJECTED */
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static gint hf_s5066_04_reason = -1;
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static const value_string s5066_04_reason[] = {
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{ 0, "Unknown reason"},
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{ 1, "Not enough resources"},
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{ 2, "Invalid Sap ID"},
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{ 3, "Sap ID already allocated"},
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{ 4, "ARQ mode unsupportable during broadcast session"},
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{ 0, NULL },
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};
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/* Type 5: S_UNBIND_INDICATION */
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static gint hf_s5066_05_reason = -1;
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static const value_string s5066_05_reason[] = {
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{ 0, "Unknown reason"},
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{ 1, "Connection pre-empted by higher ranking client"},
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{ 2, "Inactivity (failure to respond to 'Keep-alive')"},
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{ 3, "Too many invalid primitives"},
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{ 4, "Too many expedited data request primitives"},
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{ 5, "ARQ mode unsupportable during broadcast session"},
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{ 0, NULL },
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};
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/* Hard links: hardlinktype value string array. */
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static const value_string s5066_hard_link_type[] = {
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{ 0, "Link reservation"},
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{ 1, "Partial Bandwidth reservation"},
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{ 2, "Full Bandwidth reservation"},
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{ 3, "--- undefined ---"},
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{ 0, NULL },
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};
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/* Type 6: S_HARD_LINK_ESTABLISH */
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static gint hf_s5066_06_link_type = -1;
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static gint hf_s5066_06_link_priority = -1;
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static gint hf_s5066_06_sapid = -1;
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/* Type 7: S_HARD_LINK_TERMINATE */
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/* Only remote node address */
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/* Type 8: S_HARD_LINK_ESTABLISHED */
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static gint hf_s5066_08_remote_status = -1;
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static const value_string s5066_08_remote_status[] = {
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{ 0, "ERROR"},
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{ 1, "OK"},
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{ 0, NULL },
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};
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static gint hf_s5066_08_link_type = -1;
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static gint hf_s5066_08_link_priority = -1;
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static gint hf_s5066_08_sapid = -1;
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/* Type 9: S_HARD_LINK_REJECTED */
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static gint hf_s5066_09_reason = -1;
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static const value_string s5066_09_reason[] = {
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{ 0, "--- undefined ---"},
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{ 1, "Remote node busy"},
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{ 2, "Higher priority link exists"},
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{ 3, "Remote node not responding"},
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{ 4, "Destination Sap ID not bound"},
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{ 5, "Requested Type-0 link exists"},
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{ 0, NULL },
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};
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static gint hf_s5066_09_link_type = -1;
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static gint hf_s5066_09_link_priority = -1;
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static gint hf_s5066_09_sapid = -1;
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/* Type 10: S_HARD_LINK_TERMINATED */
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static gint hf_s5066_10_reason = -1;
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static const value_string s5066_10_reason[] = {
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{ 0, "--- undefined ---"},
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{ 1, "Link terminated by remote node"},
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{ 2, "Higher priority link requested"},
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{ 3, "Remote node not responding"},
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{ 4, "Destination Sap ID not bound"},
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{ 5, "Physical link broken"},
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{ 0, NULL },
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};
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static gint hf_s5066_10_link_type = -1;
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static gint hf_s5066_10_link_priority = -1;
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static gint hf_s5066_10_sapid = -1;
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/* Type 11: S_HARD_LINK_INDICATION */
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static gint hf_s5066_11_remote_status = -1;
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static const value_string s5066_11_remote_status[] = {
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{ 0, "ERROR"},
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{ 1, "OK"},
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{ 0, NULL },
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};
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static gint hf_s5066_11_link_type = -1;
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static gint hf_s5066_11_link_priority = -1;
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static gint hf_s5066_11_sapid = -1;
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/* Type 12: S_HARD_LINK_ACCEPT */
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static gint hf_s5066_12_link_type = -1;
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static gint hf_s5066_12_link_priority = -1;
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static gint hf_s5066_12_sapid = -1;
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/* Type 13: S_HARD_LINK_REJECT */
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static gint hf_s5066_13_reason = -1;
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static const value_string s5066_13_reason[] = {
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{ 0, "--- undefined ---"},
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{ 0, NULL },
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};
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static gint hf_s5066_13_link_type = -1;
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static gint hf_s5066_13_link_priority = -1;
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static gint hf_s5066_13_sapid = -1;
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/* Type 14: S_SUBNET_AVAILABILITY */
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static gint hf_s5066_14_status= -1;
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static const value_string s5066_14_status[] = {
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{ 0, "Off"},
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{ 1, "On"},
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{ 2, "Receive only"},
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{ 3, "Half-duplex"},
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{ 4, "Full-duplex"},
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{ 0, NULL },
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};
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static gint hf_s5066_14_reason= -1;
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static const value_string s5066_14_reason[] = {
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{ 0, "Unknown reason"},
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{ 1, "Local node in EMCON"},
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{ 2, "Higher priority link requested"},
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{ 0, NULL },
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};
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/* Type 15: S_DATAFLOW_ON */
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/* --- no subfields --- */
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/* Type 16: S_DATAFLOW_OFF */
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/* --- no subfields --- */
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/* Type 17: S_KEEP_ALIVE */
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/* --- no subfields --- */
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/* Type 18: S_MANAGEMENT_MESSAGE_REQUEST */
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static gint hf_s5066_18_type = -1;
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static gint hf_s5066_18_body = -1;
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/* Type 19: S_MANAGEMENT_MESSAGE_INDICATION */
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static gint hf_s5066_19_type = -1;
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static gint hf_s5066_19_body = -1;
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/* Type 20: S_UNIDATA_REQUEST */
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static gint hf_s5066_20_priority = -1;
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static gint hf_s5066_20_sapid = -1;
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static gint hf_s5066_20_ttl = -1;
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static gint hf_s5066_20_size = -1;
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/* Type 21: S_UNIDATA_INDICATION */
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/* TODO: handle RockwellCollins (v2.1 and earlier) 4-byte offset. */
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/* TODO: handle NON-ARQ With Errors case. */
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static gint hf_s5066_21_priority = -1;
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static gint hf_s5066_21_dest_sapid = -1;
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static gint hf_s5066_21_tx_mode = -1;
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static gint hf_s5066_21_src_sapid = -1;
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static gint hf_s5066_21_size = -1;
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static gint hf_s5066_21_err_blocks = -1;
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static gint hf_s5066_21_nrx_blocks = -1;
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|
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/* Type 22: S_UNIDATA_REQUEST_CONFIRM */
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static gint hf_s5066_22_unused = -1;
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static gint hf_s5066_22_sapid = -1;
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static gint hf_s5066_22_size = -1;
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static gint hf_s5066_22_data = -1;
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/* Type 23: S_UNIDATA_REQUEST_REJECTED */
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static gint hf_s5066_23_reason = -1;
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static const value_string s5066_23_reason[] = {
|
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{ 0, "Unknown reason"},
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{ 1, "Time-To-Live expired"},
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{ 2, "Destination SapID not bound"},
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{ 3, "Destination node not responding"},
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{ 4, "U_PDU larger than MTU"},
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{ 5, "Transmission Mode not specified"},
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{ 0, NULL },
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};
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static gint hf_s5066_23_sapid = -1;
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static gint hf_s5066_23_size = -1;
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static gint hf_s5066_23_data = -1;
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/* Type 24: S_EXPEDITED_UNIDATA_REQUEST */
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static gint hf_s5066_24_unused = -1;
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static gint hf_s5066_24_sapid = -1;
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static gint hf_s5066_24_ttl = -1;
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static gint hf_s5066_24_size = -1;
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/* Type 25: S_EXPEDITED_UNIDATA_INDICATION */
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/* TODO: handle RockwellCollins (v2.1 and earlier) 4-byte offset. */
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/* TODO: handle NON-ARQ With Errors case. */
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static gint hf_s5066_25_unused = -1;
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static gint hf_s5066_25_dest_sapid = -1;
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static gint hf_s5066_25_tx_mode = -1;
|
|
static gint hf_s5066_25_src_sapid = -1;
|
|
static gint hf_s5066_25_size = -1;
|
|
static gint hf_s5066_25_err_blocks = -1;
|
|
static gint hf_s5066_25_nrx_blocks = -1;
|
|
|
|
/* Type 26: S_EXPEDITED_UNIDATA_REQUEST_CONFIRM */
|
|
static gint hf_s5066_26_unused = -1;
|
|
static gint hf_s5066_26_sapid = -1;
|
|
static gint hf_s5066_26_size = -1;
|
|
static gint hf_s5066_26_data = -1;
|
|
|
|
/* Type 27: S_EXPEDITED_UNIDATA_REQUEST_REJECTED */
|
|
static gint hf_s5066_27_reason = -1;
|
|
static const value_string s5066_27_reason[] = {
|
|
{ 0, "Unknown reason"},
|
|
{ 1, "Time-To-Live expired"},
|
|
{ 2, "Destination SapID not bound"},
|
|
{ 3, "Destination node not responding"},
|
|
{ 4, "U_PDU larger than MTU"},
|
|
{ 5, "Transmission Mode not specified"},
|
|
{ 0, NULL },
|
|
};
|
|
static gint hf_s5066_27_sapid = -1;
|
|
static gint hf_s5066_27_size = -1;
|
|
static gint hf_s5066_27_data = -1;
|
|
|
|
|
|
static gint ett_s5066 = -1;
|
|
static gint ett_s5066_pdu = -1;
|
|
static gint ett_s5066_servicetype = -1;
|
|
static gint ett_s5066_address = -1;
|
|
|
|
void
|
|
proto_register_s5066(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_s5066_sync_word,
|
|
{ "Sync preample", "s5066.sync", FT_UINT16, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_version,
|
|
{ "S5066 version", "s5066.version", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_size,
|
|
{ "S_Primitive size", "s5066.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_type,
|
|
{ "PDU Type", "s5066.type", FT_UINT8, BASE_DEC, VALS(s5066_pdu_type), 0x0, "", HFILL }
|
|
},
|
|
/* STANAG 5066 Address */
|
|
{ &hf_s5066_ad_size,
|
|
{ "Address size (1/2 Bytes)", "s5066.address.size", FT_UINT8, BASE_HEX, NULL, 0xE0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_ad_group,
|
|
{ "Group address", "s5066.address.group", FT_UINT8, BASE_HEX, NULL, 0x10, "", HFILL }
|
|
},
|
|
{ &hf_s5066_ad_address,
|
|
{ "Address", "s5066.address.address", FT_IPv4, BASE_NONE, NULL, 0, "", HFILL }
|
|
},
|
|
/* Service type */
|
|
{ &hf_s5066_st_txmode,
|
|
{ "Transmission mode", "s5066.st.txmode", FT_UINT8, BASE_HEX, VALS(s5066_st_txmode), 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_st_delivery_confirmation,
|
|
{ "Delivery confirmation", "s5066.st.confirm", FT_UINT8, BASE_HEX, VALS(s5066_st_delivery_confirmation), 0x0C, "", HFILL }
|
|
},
|
|
{ &hf_s5066_st_delivery_order,
|
|
{ "Delivery order", "s5066.st.order", FT_UINT8, BASE_HEX, VALS(s5066_st_delivery_order), 0x02, "", HFILL }
|
|
},
|
|
{ &hf_s5066_st_extended,
|
|
{ "Extended field", "s5066.st.extended", FT_UINT8, BASE_HEX, VALS(s5066_st_extended), 0x01, "", HFILL }
|
|
},
|
|
{ &hf_s5066_st_retries,
|
|
{ "Minimum number of retransmissions", "s5066.st.retries", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
/* PDU Type 01: S_BIND_REQUEST */
|
|
{ &hf_s5066_01_sapid,
|
|
{ "Sap ID", "s5066.01.sapid", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_01_rank,
|
|
{ "Rank", "s5066.01.rank", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_01_unused,
|
|
{ "(Unused)", "s5066.01.unused", FT_UINT8, BASE_HEX, NULL, 0x0F, "", HFILL }
|
|
},
|
|
/* PDU Type 02: S_UNBIND_REQUEST */
|
|
/* --- no subfields --- */
|
|
/* PDU Type 03: S_BIND_ACCEPTED */
|
|
{ &hf_s5066_03_sapid,
|
|
{ "Sap ID", "s5066.03.sapid", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_03_unused,
|
|
{ "(Unused)", "s5066.03.unused", FT_UINT8, BASE_HEX, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_03_mtu,
|
|
{ "MTU", "s5066.03.mtu", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* PDU Type 04: S_BIND_REJECTED */
|
|
{ &hf_s5066_04_reason,
|
|
{ "Reason", "s5066.04.reason", FT_UINT8, BASE_DEC, VALS(s5066_04_reason), 0x0, "", HFILL }
|
|
},
|
|
/* PDU Type 05: S_UNBIND_INDICATION */
|
|
{ &hf_s5066_05_reason,
|
|
{ "Reason", "s5066.05.reason", FT_UINT8, BASE_DEC, VALS(s5066_05_reason), 0x0, "", HFILL }
|
|
},
|
|
/* Type 6: S_HARD_LINK_ESTABLISH */
|
|
{ &hf_s5066_06_link_type,
|
|
{ "Hardlink type", "s5066.06.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_06_link_priority,
|
|
{ "Priority", "s5066.06.priority", FT_UINT8, BASE_DEC, NULL, 0x30, "", HFILL }
|
|
},
|
|
{ &hf_s5066_06_sapid,
|
|
{ "Remote Sap ID", "s5066.06.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
/* Type 7: S_HARD_LINK_TERMINATE */
|
|
/* --- Only remote node address --- */
|
|
/* Type 8: S_HARD_LINK_ESTABLISHED */
|
|
{ &hf_s5066_08_remote_status,
|
|
{ "Remote node status", "s5066.08.status", FT_UINT8, BASE_DEC, VALS(s5066_08_remote_status), 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_08_link_type,
|
|
{ "Hardlink type", "s5066.08.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_08_link_priority,
|
|
{ "Priority", "s5066.08.priority", FT_UINT8, BASE_DEC, NULL, 0x30, "", HFILL }
|
|
},
|
|
{ &hf_s5066_08_sapid,
|
|
{ "Remote Sap ID", "s5066.08.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
/* Type 9: S_HARD_LINK_REJECTED */
|
|
{ &hf_s5066_09_reason,
|
|
{ "Reason", "s5066.09.reason", FT_UINT8, BASE_DEC, VALS(s5066_09_reason), 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_09_link_type,
|
|
{ "Hardlink type", "s5066.09.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_09_link_priority,
|
|
{ "Priority", "s5066.09.priority", FT_UINT8, BASE_DEC, NULL, 0x30, "", HFILL }
|
|
},
|
|
{ &hf_s5066_09_sapid,
|
|
{ "Remote Sap ID", "s5066.09.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
/* Type 10: S_HARD_LINK_TERMINATED */
|
|
{ &hf_s5066_10_reason,
|
|
{ "Reason", "s5066.10.reason", FT_UINT8, BASE_DEC, VALS(s5066_10_reason), 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_10_link_type,
|
|
{ "Hardlink type", "s5066.10.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_10_link_priority,
|
|
{ "Priority", "s5066.10.priority", FT_UINT8, BASE_DEC, NULL, 0x30, "", HFILL }
|
|
},
|
|
{ &hf_s5066_10_sapid,
|
|
{ "Remote Sap ID", "s5066.10.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
/* Type 11: S_HARD_LINK_INDICATION */
|
|
{ &hf_s5066_11_remote_status,
|
|
{ "Remote node status", "s5066.11.status", FT_UINT8, BASE_DEC, VALS(s5066_11_remote_status), 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_11_link_type,
|
|
{ "Hardlink type", "s5066.11.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_11_link_priority,
|
|
{ "Priority", "s5066.11.priority", FT_UINT8, BASE_DEC, NULL, 0x30, "", HFILL }
|
|
},
|
|
{ &hf_s5066_11_sapid,
|
|
{ "Remote Sap ID", "s5066.11.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
/* Type 12: S_HARD_LINK_ACCEPT */
|
|
{ &hf_s5066_12_link_type,
|
|
{ "Hardlink type", "s5066.12.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_12_link_priority,
|
|
{ "Priority", "s5066.12.priority", FT_UINT8, BASE_DEC, NULL, 0x30, "", HFILL }
|
|
},
|
|
{ &hf_s5066_12_sapid,
|
|
{ "Remote Sap ID", "s5066.12.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
/* Type 13: S_HARD_LINK_REJECT */
|
|
{ &hf_s5066_13_reason,
|
|
{ "Reason", "s5066.13.reason", FT_UINT8, BASE_DEC, VALS(s5066_13_reason), 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_13_link_type,
|
|
{ "Hardlink type", "s5066.13.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_13_link_priority,
|
|
{ "Priority", "s5066.13.priority", FT_UINT8, BASE_DEC, NULL, 0x30, "", HFILL }
|
|
},
|
|
{ &hf_s5066_13_sapid,
|
|
{ "Remote Sap ID", "s5066.13.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
/* Type 14: S_SUBNET_AVAILABILITY */
|
|
{ &hf_s5066_14_status,
|
|
{ "Status", "s5066.14.status", FT_UINT8, BASE_DEC, VALS(s5066_14_status), 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_14_reason,
|
|
{ "Reason", "s5066.14.reason", FT_UINT8, BASE_DEC, VALS(s5066_14_reason), 0x0, "", HFILL }
|
|
},
|
|
/* Type 15: S_DATAFLOW_ON */
|
|
/* --- no subfields --- */
|
|
/* Type 16: S_DATAFLOW_OFF */
|
|
/* --- no subfields --- */
|
|
/* Type 17: S_KEEP_ALIVE */
|
|
/* --- no subfields --- */
|
|
/* Type 18: S_MANAGEMENT_MESSAGE_REQUEST */
|
|
{ &hf_s5066_18_type,
|
|
{ "Message Type", "s5066.18.type", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_18_body,
|
|
{ "Message Body", "s5066.18.body", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 19: S_MANAGEMENT_MESSAGE_INDICATION */
|
|
{ &hf_s5066_19_type,
|
|
{ "Message Type", "s5066.19.type", FT_UINT8, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_19_body,
|
|
{ "Message Body", "s5066.19.body", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 20: S_UNIDATA_REQUEST */
|
|
{ &hf_s5066_20_priority,
|
|
{ "Priority", "s5066.20.priority", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_20_sapid,
|
|
{ "Destination Sap ID", "s5066.20.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_20_ttl,
|
|
{ "Time-To-Live (x2 seconds)", "s5066.20.ttl", FT_UINT24, BASE_DEC, NULL, 0x0FFFFF, "", HFILL }
|
|
},
|
|
{ &hf_s5066_20_size,
|
|
{ "U_PDU Size", "s5066.20.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 21: S_UNIDATA_INDICATION */
|
|
{ &hf_s5066_21_priority,
|
|
{ "Priority", "s5066.21.priority", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_21_dest_sapid,
|
|
{ "Destination Sap ID", "s5066.21.dest_sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_21_tx_mode,
|
|
{ "Transmission Mode", "s5066.21.txmode", FT_UINT8, BASE_HEX, VALS(s5066_st_txmode), 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_21_src_sapid,
|
|
{ "Source Sap ID", "s5066.21.src_sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_21_size,
|
|
{ "U_PDU Size", "s5066.21.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_21_err_blocks,
|
|
{ "Number of errored blocks", "s5066.21.err_blocks", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_21_nrx_blocks,
|
|
{ "Number of non-received blocks", "s5066.21.nrx_blocks", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 22: S_UNIDATA_REQUEST_CONFIRM */
|
|
{ &hf_s5066_22_unused,
|
|
{ "(Unused)", "s5066.22.unused", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_22_sapid,
|
|
{ "Destination Sap ID", "s5066.22.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_22_size,
|
|
{ "U_PDU Size", "s5066.22.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_22_data,
|
|
{ "(Part of) Confirmed data", "s5066.22.data", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 23: S_UNIDATA_REQUEST_REJECTED */
|
|
{ &hf_s5066_23_reason,
|
|
{ "Reason", "s5066.23.reason", FT_UINT8, BASE_DEC, VALS(s5066_23_reason), 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_23_sapid,
|
|
{ "Destination Sap ID", "s5066.23.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_23_size,
|
|
{ "U_PDU Size", "s5066.23.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_23_data,
|
|
{ "(Part of) Rejected data", "s5066.23.data", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 24: S_EXPEDITED_UNIDATA_REQUEST */
|
|
{ &hf_s5066_24_unused,
|
|
{ "(Unused)", "s5066.24.unused", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_24_sapid,
|
|
{ "Destination Sap ID", "s5066.24.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_24_ttl,
|
|
{ "Time-To-Live (x2 seconds)", "s5066.24.ttl", FT_UINT24, BASE_DEC, NULL, 0x0FFFFF, "", HFILL }
|
|
},
|
|
{ &hf_s5066_24_size,
|
|
{ "U_PDU Size", "s5066.24.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 25: S_EXPEDITED_UNIDATA_INDICATION */
|
|
{ &hf_s5066_25_unused,
|
|
{ "(Unused)", "s5066.25.unused", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_25_dest_sapid,
|
|
{ "Destination Sap ID", "s5066.25.dest_sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_25_tx_mode,
|
|
{ "Transmission Mode", "s5066.25.txmode", FT_UINT8, BASE_HEX, VALS(s5066_st_txmode), 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_25_src_sapid,
|
|
{ "Source Sap ID", "s5066.25.src_sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_25_size,
|
|
{ "U_PDU Size", "s5066.25.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_25_err_blocks,
|
|
{ "Number of errored blocks", "s5066.25.err_blocks", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_25_nrx_blocks,
|
|
{ "Number of non-received blocks", "s5066.25.nrx_blocks", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 26: S_EXPEDITED_UNIDATA_REQUEST_CONFIRM */
|
|
{ &hf_s5066_26_unused,
|
|
{ "(Unused)", "s5066.26.unused", FT_UINT8, BASE_DEC, NULL, 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_26_sapid,
|
|
{ "Destination Sap ID", "s5066.26.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_26_size,
|
|
{ "U_PDU Size", "s5066.26.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_26_data,
|
|
{ "(Part of) Confirmed data", "s5066.26.data", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
/* Type 27: S_EXPEDITED_UNIDATA_REQUEST_REJECTED */
|
|
{ &hf_s5066_27_reason,
|
|
{ "Reason", "s5066.27.reason", FT_UINT8, BASE_DEC, VALS(s5066_27_reason), 0xF0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_27_sapid,
|
|
{ "Destination Sap ID", "s5066.27.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, "", HFILL }
|
|
},
|
|
{ &hf_s5066_27_size,
|
|
{ "U_PDU Size", "s5066.27.size", FT_UINT16, BASE_DEC, NULL, 0x0, "", HFILL }
|
|
},
|
|
{ &hf_s5066_27_data,
|
|
{ "(Part of) Rejected data", "s5066.27.data", FT_BYTES, BASE_HEX, NULL, 0x0, "", HFILL }
|
|
},
|
|
|
|
};
|
|
|
|
/* Setup protocol subtree array */
|
|
static gint *ett[] = {
|
|
&ett_s5066,
|
|
&ett_s5066_pdu,
|
|
&ett_s5066_servicetype,
|
|
&ett_s5066_address,
|
|
};
|
|
|
|
module_t *s5066_module;
|
|
|
|
if (proto_s5066 == -1) {
|
|
proto_s5066 = proto_register_protocol (
|
|
"STANAG 5066 (SIS layer)", /* name */
|
|
"STANAG 5066", /* short name*/
|
|
"s5066" /* abbrev */
|
|
);
|
|
proto_register_field_array(proto_s5066, hf, array_length(hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
}
|
|
|
|
s5066_module = prefs_register_protocol(proto_s5066, proto_reg_handoff_s5066);
|
|
prefs_register_bool_preference(s5066_module, "desegment_pdus",
|
|
"Reassemble S5066 PDUs spanning multiple TCP segments",
|
|
"Whether the S5066 dissector should reassemble PDUs spanning multiple TCP segments."
|
|
" The default is to use reassembly.",
|
|
&s5066_desegment);
|
|
prefs_register_bool_preference(s5066_module, "edition_one",
|
|
"Dissect edition 1.0 of STANAG 5066",
|
|
"Whether the S5066 dissector should dissect editon 1 of the STANAG."
|
|
" This editon was never formally approved and is very rare. The common edition is editon 1.2.",
|
|
&s5066_edition_one);
|
|
|
|
}
|
|
|
|
void
|
|
proto_reg_handoff_s5066(void)
|
|
{
|
|
static gint Initialized = FALSE;
|
|
|
|
if (!Initialized) {
|
|
s5066_tcp_handle = create_dissector_handle(dissect_s5066_tcp, proto_s5066);
|
|
dissector_add("tcp.port", global_s5066_port, s5066_tcp_handle);
|
|
|
|
data_handle = find_dissector("data");
|
|
Initialized = TRUE;
|
|
}
|
|
if (!s5066_edition_one) {
|
|
s5066_header_size = 5;
|
|
s5066_size_offset = 3;
|
|
} else {
|
|
s5066_header_size = 4;
|
|
s5066_size_offset = 2;
|
|
}
|
|
}
|
|
|
|
static guint
|
|
dissect_s5066_address(tvbuff_t *tvb, guint offset, proto_tree *tree, gint source)
|
|
{
|
|
proto_item *ti = NULL;
|
|
proto_tree *s5066_tree_address = NULL;
|
|
guint32 address;
|
|
|
|
if (source) {
|
|
ti = proto_tree_add_text(tree, tvb, offset, 4, "Source Address");
|
|
}
|
|
else {
|
|
ti = proto_tree_add_text(tree, tvb, offset, 4, "Destination Address");
|
|
}
|
|
s5066_tree_address = proto_item_add_subtree(ti, ett_s5066_address);
|
|
proto_tree_add_item(s5066_tree_address, hf_s5066_ad_size, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(s5066_tree_address, hf_s5066_ad_group, tvb, offset, 1, FALSE);
|
|
address = tvb_get_ntohl(tvb, offset);
|
|
address = address & 0x1FFFFFFF;
|
|
proto_tree_add_ipv4(s5066_tree_address, hf_s5066_ad_address, tvb, offset, 4, g_htonl(address));
|
|
|
|
return offset += 4;
|
|
}
|
|
|
|
static guint
|
|
dissect_s5066_servicetype(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_item *ti = NULL;
|
|
proto_tree *s5066_tree_servicetype = NULL;
|
|
|
|
ti = proto_tree_add_text(tree, tvb, offset, 2, "Service type");
|
|
s5066_tree_servicetype = proto_item_add_subtree(ti, ett_s5066_servicetype);
|
|
|
|
proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_txmode, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_delivery_confirmation, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_delivery_order, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_extended, tvb, offset, 1, FALSE); offset++;
|
|
proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_retries, tvb, offset, 1, FALSE);
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* S_BIND_REQUEST */
|
|
static guint
|
|
dissect_s5066_01(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_01_sapid, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_01_rank, tvb, offset, 1, FALSE); offset++;
|
|
|
|
offset = dissect_s5066_servicetype(tvb, offset, tree);
|
|
|
|
proto_tree_add_item(tree, hf_s5066_01_unused, tvb, offset, 1, FALSE); offset++;
|
|
return offset;
|
|
}
|
|
|
|
/* S_UNBIND_REQUEST */
|
|
/* Commented out: does nothing and causes <variable not used> messages.
|
|
static guint
|
|
dissect_s5066_02(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
return offset;
|
|
}
|
|
*/
|
|
|
|
/* S_BIND_ACCEPTED */
|
|
static guint
|
|
dissect_s5066_03(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_03_sapid, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_03_unused, tvb, offset, 1, FALSE); offset++;
|
|
proto_tree_add_item(tree, hf_s5066_03_mtu, tvb, offset, 2, FALSE); offset +=2;
|
|
return offset;
|
|
}
|
|
|
|
/* S_BIND_REJECTED */
|
|
static guint
|
|
dissect_s5066_04(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_04_reason, tvb, offset, 1, FALSE); offset++;
|
|
return offset;
|
|
}
|
|
|
|
/* S_UNBIND_INDICATION */
|
|
static guint
|
|
dissect_s5066_05(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_05_reason, tvb, offset, 1, FALSE); offset++;
|
|
return offset;
|
|
}
|
|
|
|
/* S_HARD_LINK_ESTABLISH */
|
|
static guint
|
|
dissect_s5066_06(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_06_link_type, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_06_link_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_06_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
return offset;
|
|
}
|
|
|
|
/* S_HARD_LINK_TERMINATE */
|
|
static guint
|
|
dissect_s5066_07(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
return offset;
|
|
}
|
|
|
|
/* S_HARD_LINK_ESTABLISHED */
|
|
static guint
|
|
dissect_s5066_08(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_08_remote_status, tvb, offset, 1, FALSE); offset++;
|
|
proto_tree_add_item(tree, hf_s5066_08_link_type, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_08_link_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_08_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
return offset;
|
|
}
|
|
|
|
/* S_HARD_LINK_REJECTED */
|
|
static guint
|
|
dissect_s5066_09(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_09_reason, tvb, offset, 1, FALSE); offset++;
|
|
proto_tree_add_item(tree, hf_s5066_09_link_type, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_09_link_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_09_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
return offset;
|
|
}
|
|
|
|
/* S_HARD_LINK_TERMINATED */
|
|
static guint
|
|
dissect_s5066_10(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_10_reason, tvb, offset, 1, FALSE); offset++;
|
|
proto_tree_add_item(tree, hf_s5066_10_link_type, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_10_link_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_10_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
return offset;
|
|
}
|
|
|
|
/* S_HARD_LINK_INDICATION */
|
|
static guint
|
|
dissect_s5066_11(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_11_remote_status, tvb, offset, 1, FALSE); offset++;
|
|
proto_tree_add_item(tree, hf_s5066_11_link_type, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_11_link_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_11_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
return offset;
|
|
}
|
|
|
|
/* S_HARD_LINK_ACCEPT */
|
|
static guint
|
|
dissect_s5066_12(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_12_link_type, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_12_link_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_12_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
return offset;
|
|
}
|
|
|
|
/* S_HARD_LINK_REJECT */
|
|
static guint
|
|
dissect_s5066_13(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_13_reason, tvb, offset, 1, FALSE); offset++;
|
|
proto_tree_add_item(tree, hf_s5066_13_link_type, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_13_link_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_13_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
return offset;
|
|
}
|
|
|
|
/* S_SUBNET_AVAILABILITY */
|
|
static guint
|
|
dissect_s5066_14(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_14_status, tvb, offset, 1, FALSE); offset++;
|
|
proto_tree_add_item(tree, hf_s5066_14_reason, tvb, offset, 1, FALSE); offset++;
|
|
return offset;
|
|
}
|
|
|
|
/* Following three commented out: do nothing and cause <variable not used> messages. */
|
|
/* S_DATA_FLOW_ON */
|
|
/*
|
|
static guint
|
|
dissect_s5066_15(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
return offset;
|
|
}
|
|
*/
|
|
|
|
/* S_DATA_FLOW_OFF */
|
|
/*
|
|
static guint
|
|
dissect_s5066_16(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
return offset;
|
|
}
|
|
*/
|
|
|
|
/* S_KEEP_ALIVE */
|
|
/*
|
|
static guint
|
|
dissect_s5066_17(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
return offset;
|
|
}
|
|
*/
|
|
|
|
/* S_MANAGEMENT_MESSAGE_REQUEST */
|
|
static guint
|
|
dissect_s5066_18(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size)
|
|
{
|
|
guint body_size = 0;
|
|
proto_tree_add_item(tree, hf_s5066_18_type, tvb, offset, 1, FALSE); offset++;
|
|
body_size = pdu_size - offset;
|
|
proto_tree_add_item(tree, hf_s5066_18_body, tvb, offset, body_size, FALSE); offset += body_size;
|
|
return offset;
|
|
}
|
|
|
|
/* S_MANAGEMENT_MESSAGE_INDICATION */
|
|
static guint
|
|
dissect_s5066_19(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size)
|
|
{
|
|
guint body_size = 0;
|
|
proto_tree_add_item(tree, hf_s5066_19_type, tvb, offset, 1, FALSE); offset++;
|
|
body_size = pdu_size - offset;
|
|
proto_tree_add_item(tree, hf_s5066_19_body, tvb, offset, body_size, FALSE); offset += body_size;
|
|
return offset;
|
|
}
|
|
|
|
/* S_UNIDATA_REQUEST */
|
|
static guint
|
|
dissect_s5066_20(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_20_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_20_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
offset = dissect_s5066_servicetype(tvb, offset, tree);
|
|
proto_tree_add_item(tree, hf_s5066_20_ttl, tvb, offset, 3, FALSE); offset += 3;
|
|
proto_tree_add_item(tree, hf_s5066_20_size, tvb, offset, 2, FALSE); offset += 2;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* S_UNIDATA_INDICATION */
|
|
static guint
|
|
dissect_s5066_21(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size)
|
|
{
|
|
proto_item *ti = NULL;
|
|
guint d_pdu_size = 0;
|
|
proto_tree_add_item(tree, hf_s5066_21_priority, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_21_dest_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_21_tx_mode, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_21_src_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, TRUE);
|
|
|
|
d_pdu_size = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_item(tree, hf_s5066_21_size, tvb, offset, 2, FALSE); offset += 2;
|
|
|
|
/* Handle RockwellCollins (<= v2.1) 4-byte offset */
|
|
if ( (pdu_size - offset) == (d_pdu_size + 4) ) {
|
|
ti = proto_tree_add_item(tree, hf_s5066_21_err_blocks, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_item_append_text(ti, ", (Field should not be present. Rockwell Collins v2.1 or earlier.) ");
|
|
ti = proto_tree_add_item(tree, hf_s5066_21_nrx_blocks, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_item_append_text(ti, ", (Field should not be present. Rockwell Collins v2.1 or earlier.) ");
|
|
}
|
|
/* Handle Non-ARQ with errors */
|
|
if ( FALSE ) {
|
|
proto_tree_add_item(tree, hf_s5066_21_err_blocks, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_tree_add_item(tree, hf_s5066_21_nrx_blocks, tvb, offset, 2, FALSE); offset += 2;
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
/* S_UNIDATA_REQUEST_CONFIRM */
|
|
static guint
|
|
dissect_s5066_22(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
guint pdu_size = 0;
|
|
proto_tree_add_item(tree, hf_s5066_22_unused, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_22_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
pdu_size = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_item(tree, hf_s5066_22_size, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_tree_add_item(tree, hf_s5066_22_data, tvb, offset, pdu_size, FALSE); offset += pdu_size;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* S_UNIDATA_REQUEST_REJECTED */
|
|
static guint
|
|
dissect_s5066_23(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
guint pdu_size = 0;
|
|
proto_tree_add_item(tree, hf_s5066_23_reason, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_23_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
pdu_size = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_item(tree, hf_s5066_23_size, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_tree_add_item(tree, hf_s5066_23_data, tvb, offset, pdu_size, FALSE); offset += pdu_size;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* S_EXPEDITED_UNIDATA_REQUEST */
|
|
static guint
|
|
dissect_s5066_24(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
proto_tree_add_item(tree, hf_s5066_24_unused, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_24_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
offset = dissect_s5066_servicetype(tvb, offset, tree);
|
|
proto_tree_add_item(tree, hf_s5066_24_ttl, tvb, offset, 3, FALSE); offset += 3;
|
|
proto_tree_add_item(tree, hf_s5066_24_size, tvb, offset, 2, FALSE); offset += 2;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* S_EXPEDITED_UNIDATA_INDICATION */
|
|
static guint
|
|
dissect_s5066_25(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size)
|
|
{
|
|
proto_item *ti = NULL;
|
|
guint d_pdu_size = 0;
|
|
|
|
proto_tree_add_item(tree, hf_s5066_25_unused, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_25_dest_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_25_tx_mode, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_25_src_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, TRUE);
|
|
proto_tree_add_item(tree, hf_s5066_25_size, tvb, offset, 2, FALSE); offset += 2;
|
|
|
|
d_pdu_size = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_item(tree, hf_s5066_21_size, tvb, offset, 2, FALSE); offset += 2;
|
|
|
|
/* Handle RockwellCollins (<= v2.1) 4-byte offset */
|
|
if ( (pdu_size - offset) == d_pdu_size + 4 ) {
|
|
ti = proto_tree_add_item(tree, hf_s5066_25_err_blocks, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_item_append_text(ti, ", (Field should not be present. Rockwell Collins v2.1 or earlier.) ");
|
|
ti = proto_tree_add_item(tree, hf_s5066_25_nrx_blocks, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_item_append_text(ti, ", (Field should not be present. Rockwell Collins v2.1 or earlier.) ");
|
|
}
|
|
/* Handle Non-ARQ with errors */
|
|
if ( FALSE ) {
|
|
proto_tree_add_item(tree, hf_s5066_25_err_blocks, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_tree_add_item(tree, hf_s5066_25_nrx_blocks, tvb, offset, 2, FALSE); offset += 2;
|
|
}
|
|
return offset;
|
|
}
|
|
|
|
/* S_EXPEDITED_UNIDATA_REQUEST_CONFIRM */
|
|
static guint
|
|
dissect_s5066_26(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
guint pdu_size = 0;
|
|
proto_tree_add_item(tree, hf_s5066_26_unused, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_26_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
pdu_size = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_item(tree, hf_s5066_26_size, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_tree_add_item(tree, hf_s5066_26_data, tvb, offset, pdu_size, FALSE); offset += pdu_size;
|
|
|
|
return offset;
|
|
}
|
|
|
|
/* S_EXPEDITED_UNIDATA_REQUEST_REJECTED */
|
|
static guint
|
|
dissect_s5066_27(tvbuff_t *tvb, guint offset, proto_tree *tree)
|
|
{
|
|
guint pdu_size = 0;
|
|
proto_tree_add_item(tree, hf_s5066_27_reason, tvb, offset, 1, FALSE);
|
|
proto_tree_add_item(tree, hf_s5066_27_sapid, tvb, offset, 1, FALSE); offset++;
|
|
offset = dissect_s5066_address(tvb, offset, tree, FALSE);
|
|
pdu_size = tvb_get_ntohs(tvb, offset);
|
|
proto_tree_add_item(tree, hf_s5066_27_size, tvb, offset, 2, FALSE); offset += 2;
|
|
proto_tree_add_item(tree, hf_s5066_27_data, tvb, offset, pdu_size, FALSE); offset += pdu_size;
|
|
|
|
return offset;
|
|
}
|
|
|
|
static guint
|
|
get_s5066_pdu_len(tvbuff_t *tvb, int offset)
|
|
{
|
|
guint16 plen;
|
|
|
|
/* Get the length of the S5066 PDU. */
|
|
plen = tvb_get_ntohs(tvb, offset + s5066_size_offset);
|
|
|
|
/* That length doesn't include the sync, version and length fields; add that in. */
|
|
return plen + s5066_header_size;
|
|
}
|
|
|
|
static void
|
|
dissect_s5066_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
/* Make sure there are enough bytes... */
|
|
if (tvb_length(tvb) < 5)
|
|
return;
|
|
/* Check if the first two bytes are 0x90 0xEB: if not,
|
|
then this is not a S5066 PDU or an unreassembled one.
|
|
The third byte is the STANAG 5066 version: Right now only 0x00 is defined. */
|
|
if( (tvb_get_guint8(tvb, 0) != 0x90) &&
|
|
(tvb_get_guint8(tvb, 1) != 0xEB) &&
|
|
(tvb_get_guint8(tvb, 2) != 0x00) ) {
|
|
return;
|
|
}
|
|
tcp_dissect_pdus(tvb, pinfo, tree, s5066_desegment, s5066_header_size, get_s5066_pdu_len, dissect_s5066_common);
|
|
}
|
|
|
|
static void
|
|
dissect_s5066_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
|
|
{
|
|
guint offset = 0;
|
|
guint pdu_size = 0;
|
|
proto_item *ti_s5066 = NULL;
|
|
proto_item *ti_pdu = NULL;
|
|
tvbuff_t *next_tvb;
|
|
gint available_length = 0;
|
|
gint reported_length = 0;
|
|
|
|
/* Determine PDU type to display in INFO column */
|
|
guint8 pdu_type = tvb_get_guint8(tvb, s5066_header_size);
|
|
|
|
if (check_col(pinfo->cinfo, COL_PROTOCOL)) {
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "S5066");
|
|
}
|
|
/* Clear out stuff in the info column, the add PDU type */
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_clear(pinfo->cinfo, COL_INFO);
|
|
}
|
|
if (check_col(pinfo->cinfo, COL_INFO)) {
|
|
col_add_fstr(pinfo->cinfo, COL_INFO, "PDU type %s", val_to_str(pdu_type, s5066_pdu_type, "Unknown (0x%02x)"));
|
|
}
|
|
|
|
if (tree) { /* We are being asked for details */
|
|
proto_tree *s5066_tree = NULL;
|
|
proto_tree *s5066_tree_pdu = NULL;
|
|
|
|
pdu_size = tvb_get_ntohs(tvb, s5066_size_offset) + s5066_header_size;
|
|
|
|
ti_s5066 = proto_tree_add_item(tree, proto_s5066, tvb, 0, -1, FALSE);
|
|
proto_item_append_text(ti_s5066, ", PDU type %s", val_to_str(pdu_type, s5066_pdu_type, "Unknown (0x%02x)"));
|
|
s5066_tree = proto_item_add_subtree(ti_s5066, ett_s5066);
|
|
proto_tree_add_item(s5066_tree, hf_s5066_sync_word, tvb, offset, 2, FALSE); offset +=2;
|
|
if (!s5066_edition_one) {
|
|
proto_tree_add_item(s5066_tree, hf_s5066_version, tvb, offset, 1, FALSE); offset++;
|
|
}
|
|
proto_tree_add_item(s5066_tree, hf_s5066_size, tvb, offset, 2, FALSE); offset +=2;
|
|
ti_pdu = proto_tree_add_item(s5066_tree, hf_s5066_type, tvb, offset, 1, FALSE); offset++;
|
|
s5066_tree_pdu = proto_item_add_subtree(ti_pdu, ett_s5066_pdu);
|
|
switch (pdu_type) {
|
|
case 1: offset = dissect_s5066_01(tvb, offset, s5066_tree_pdu); break;
|
|
/* case 2: offset = dissect_s5066_02(tvb, offset, s5066_tree_pdu); break; */
|
|
case 3: offset = dissect_s5066_03(tvb, offset, s5066_tree_pdu); break;
|
|
case 4: offset = dissect_s5066_04(tvb, offset, s5066_tree_pdu); break;
|
|
case 5: offset = dissect_s5066_05(tvb, offset, s5066_tree_pdu); break;
|
|
case 6: offset = dissect_s5066_06(tvb, offset, s5066_tree_pdu); break;
|
|
case 7: offset = dissect_s5066_07(tvb, offset, s5066_tree_pdu); break;
|
|
case 8: offset = dissect_s5066_08(tvb, offset, s5066_tree_pdu); break;
|
|
case 9: offset = dissect_s5066_09(tvb, offset, s5066_tree_pdu); break;
|
|
case 10: offset = dissect_s5066_10(tvb, offset, s5066_tree_pdu); break;
|
|
case 11: offset = dissect_s5066_11(tvb, offset, s5066_tree_pdu); break;
|
|
case 12: offset = dissect_s5066_12(tvb, offset, s5066_tree_pdu); break;
|
|
case 13: offset = dissect_s5066_13(tvb, offset, s5066_tree_pdu); break;
|
|
case 14: offset = dissect_s5066_14(tvb, offset, s5066_tree_pdu); break;
|
|
/* case 15: offset = dissect_s5066_15(tvb, offset, s5066_tree_pdu); break; */
|
|
/* case 16: offset = dissect_s5066_16(tvb, offset, s5066_tree_pdu); break; */
|
|
/* case 17: offset = dissect_s5066_17(tvb, offset, s5066_tree_pdu); break; */
|
|
case 18: offset = dissect_s5066_18(tvb, offset, s5066_tree_pdu, pdu_size); break;
|
|
case 19: offset = dissect_s5066_19(tvb, offset, s5066_tree_pdu, pdu_size); break;
|
|
case 20: offset = dissect_s5066_20(tvb, offset, s5066_tree_pdu); break;
|
|
case 21: offset = dissect_s5066_21(tvb, offset, s5066_tree_pdu, pdu_size); break;
|
|
case 22: offset = dissect_s5066_22(tvb, offset, s5066_tree_pdu); break;
|
|
case 23: offset = dissect_s5066_23(tvb, offset, s5066_tree_pdu); break;
|
|
case 24: offset = dissect_s5066_24(tvb, offset, s5066_tree_pdu); break;
|
|
case 25: offset = dissect_s5066_25(tvb, offset, s5066_tree_pdu, pdu_size); break;
|
|
case 26: offset = dissect_s5066_26(tvb, offset, s5066_tree_pdu); break;
|
|
case 27: offset = dissect_s5066_27(tvb, offset, s5066_tree_pdu); break;
|
|
}
|
|
}
|
|
proto_item_set_len(ti_s5066, offset);
|
|
/* proto_item_set_len(ti_pdu, offset - s5066_header_size); */
|
|
|
|
/* Call sub dissector(s) */
|
|
reported_length = pdu_size - offset;
|
|
available_length = tvb_length(tvb) - offset;
|
|
|
|
next_tvb = tvb_new_subset(tvb, offset, MIN(available_length, reported_length), reported_length);
|
|
call_dissector(data_handle, next_tvb, pinfo, tree);
|
|
|
|
return;
|
|
}
|
|
|
|
|