diff options
author | Guy Harris <guy@alum.mit.edu> | 2013-10-04 01:55:16 +0000 |
---|---|---|
committer | Guy Harris <guy@alum.mit.edu> | 2013-10-04 01:55:16 +0000 |
commit | 58e2773f1d582d7ea3738f66547a84c43ec20dc8 (patch) | |
tree | ff2005d3a0d6e56d562168edca11640c5fad40e9 /epan/dissectors/packet-s5066sis.c | |
parent | e0cb13c13c5fb68e5cd74cda6bfd8d8d0cdde3b0 (diff) |
Rename epan/dissectors/packet-s5066.c to
epan/dissectors/packet-s5066sis.c, to clarify that it's not for STANAG
5066 as a whole, but just for the Subnetwork Interface Sublayer.
There's currently an enhancement to support the Data Transport Sublayer,
which adds a epan/dissectors/packet-s5066dts.c file.
svn path=/trunk/; revision=52348
Diffstat (limited to 'epan/dissectors/packet-s5066sis.c')
-rw-r--r-- | epan/dissectors/packet-s5066sis.c | 1361 |
1 files changed, 1361 insertions, 0 deletions
diff --git a/epan/dissectors/packet-s5066sis.c b/epan/dissectors/packet-s5066sis.c new file mode 100644 index 0000000000..9bcdddf236 --- /dev/null +++ b/epan/dissectors/packet-s5066sis.c @@ -0,0 +1,1361 @@ +/* packet-s5066sis.c + * Routines to dissect STANAG 5066 Subnetwork Interface Sublayer (SIS) + * packets, as described in Annex A of STANAG 5066. + * + * $Id$ + * + * Copyright (c) 2005 by Menno Andriesse <s5066 [AT] nc3a.nato.int> + * + * Wireshark - Network traffic analyzer + * By Gerald Combs <gerald@wireshark.org> + * Copyright 1999 Gerald Combs + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. + */ + +#include "config.h" + +#include <glib.h> +#include <epan/packet.h> +#include <epan/prefs.h> +#include <epan/dissectors/packet-tcp.h> /* For tcp_dissect_pdus() */ + +/* Forward reference */ +/* Register functions */ +void proto_reg_handoff_s5066(void); +/* Main dissectors */ +static void dissect_s5066_tcp(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); +static guint get_s5066_pdu_len(packet_info *pinfo, tvbuff_t *tvb, int offset); +static void dissect_s5066_common(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree); +/* Service type and address dissectors */ +static guint dissect_s5066_servicetype(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_address(tvbuff_t *tvb, guint offset, proto_tree *tree, gint source); +/* S-Primitive dissectors */ +static guint dissect_s5066_01(tvbuff_t *tvb, guint offset, proto_tree *tree); +/* static guint dissect_s5066_02(tvbuff_t *tvb, guint offset, proto_tree *tree); */ +static guint dissect_s5066_03(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_04(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_05(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_06(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_07(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_08(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_09(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_10(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_11(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_12(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_13(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_14(tvbuff_t *tvb, guint offset, proto_tree *tree); +/* static guint dissect_s5066_15(tvbuff_t *tvb, guint offset, proto_tree *tree); */ +/* static guint dissect_s5066_16(tvbuff_t *tvb, guint offset, proto_tree *tree); */ +/* static guint dissect_s5066_17(tvbuff_t *tvb, guint offset, proto_tree *tree); */ +static guint dissect_s5066_18(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size); +static guint dissect_s5066_19(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size); +static guint dissect_s5066_20(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_21(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size); +static guint dissect_s5066_22(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_23(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_24(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_25(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size); +static guint dissect_s5066_26(tvbuff_t *tvb, guint offset, proto_tree *tree); +static guint dissect_s5066_27(tvbuff_t *tvb, guint offset, proto_tree *tree); + +static gint proto_s5066 = -1; +static dissector_handle_t data_handle; + +/* Enable desegmentation of S5066 over TCP */ +static gboolean s5066_desegment = TRUE; +/* Dissect old 'edition 1' of STANAG 5066 (It lacks the 'version' field.) */ +static gboolean s5066_edition_one = FALSE; +/* This port is registered with IANA */ +static guint global_s5066_port = 5066; +/* Size of header outside 'size' field */ +static gint s5066_header_size = 5; +/* Offset of 'size' field */ +static gint s5066_size_offset = 3; + +/* Sync should be 0x90EB */ +static gint hf_s5066_sync_word = -1; +/* Version should be 0x00 */ +static gint hf_s5066_version = -1; +/* Total size of the PDU, excluding this size and previous fields */ +/* So total size is this + 5 bytes (s5066_header_size) */ +static gint hf_s5066_size = -1; +/* Th type of PDU */ +static gint hf_s5066_type = -1; +static const value_string s5066_pdu_type[] = { + { 1, "S_BIND_REQUEST"}, + { 2, "S_UNBIND_REQUEST"}, + { 3, "S_BIND_ACCEPTED"}, + { 4, "S_BIND_REJECTED"}, + { 5, "S_UNBIND_INDICATION"}, + { 6, "S_HARD_LINK_ESTABLISH"}, + { 7, "S_HARD_LINK_TERMINATE"}, + { 8, "S_HARD_LINK_ESTABLISHED"}, + { 9, "S_HARD_LINK_REJECTED"}, + {10, "S_HARD_LINK_TERMINATED"}, + {11, "S_HARD_LINK_INDICATION"}, + {12, "S_HARD_LINK_ACCEPT"}, + {13, "S_HARD_LINK_REJECT"}, + {14, "S_SUBNET_AVAILABILITY"}, + {15, "S_DATAFLOW_ON"}, + {16, "S_DATAFLOW_OFF"}, + {17, "S_KEEP_ALIVE"}, + {18, "S_MANAGEMENT_MESSAGE_REQUEST"}, + {19, "S_MANAGEMENT_MESSAGE_INDICATION"}, + {20, "S_UNIDATA_REQUEST"}, + {21, "S_UNIDATA_INDICATION"}, + {22, "S_UNIDATA_REQUEST_CONFIRM"}, + {23, "S_UNIDATA_REQUEST_REJECTED"}, + {24, "S_EXPEDITED_UNIDATA_REQUEST"}, + {25, "S_EXPEDITED_UNIDATA_INDICATION"}, + {26, "S_EXPEDITED_UNIDATA_REQUEST_CONFIRM"}, + {27, "S_EXPEDITED_UNIDATA_REQUEST_REJECTED"}, + { 0, NULL }, +}; + +/* STANAG 5066 Address */ +/* Size is defined in nibbles (4 bits) */ +static gint hf_s5066_ad_size = -1; +/* Group flag: 0 = false, 1 = true */ +static gint hf_s5066_ad_group = -1; +/* The remainder of the 4 bytes form the address */ +static gint hf_s5066_ad_address = -1; + +/* Service type */ +/* Transmission mode: */ +static gint hf_s5066_st_txmode = -1; +static const value_string s5066_st_txmode[] = { + { 0, "Ignore service type field"}, + { 1, "ARQ"}, + { 2, "Non-ARQ (Broadcast)"}, + { 3, "Non-ARQ (with errors)"}, + { 4, "Other non-ARQ types"}, + { 5, "Other non-ARQ types"}, + { 6, "Other non-ARQ types"}, + { 7, "Other non-ARQ types"}, + { 8, "Other non-ARQ types"}, + { 9, "Other non-ARQ types"}, + {10, "Other non-ARQ types"}, + {11, "Other non-ARQ types"}, + {12, "Other non-ARQ types"}, + {13, "Other non-ARQ types"}, + {14, "Other non-ARQ types"}, + {15, "Other non-ARQ types"}, + { 0, NULL }, +}; +/* Delivery confirmation: */ +static gint hf_s5066_st_delivery_confirmation = -1; +static const value_string s5066_st_delivery_confirmation[] = { + { 0, "No confirmation"}, + { 1, "Node delivery confirmation"}, + { 2, "Client delivery confirmation"}, + { 3, "-- Not defined --"}, + { 0, NULL }, +}; +/* Delivery order: */ +static gint hf_s5066_st_delivery_order = -1; +static const value_string s5066_st_delivery_order[] = { + { 0, "In-order delivery"}, + { 1, "As-they-arrive"}, + { 0, NULL }, +}; +/* Extended field present: (Never in the current version.) */ +static gint hf_s5066_st_extended = -1; +static const value_string s5066_st_extended[] = { + { 0, "No extended field"}, + { 1, "Extended field follows"}, + { 0, NULL }, +}; +/* Number of retransmissions when in Non-ARQ: */ +static gint hf_s5066_st_retries = -1; + +/* Type 1: S_BIND_REQUEST */ +static gint hf_s5066_01_sapid = -1; +static gint hf_s5066_01_rank = -1; +static gint hf_s5066_01_unused = -1; + +/* Type 2: S_UNBIND_REQUEST */ +/* --- no subfields --- */ + +/* Type 3: S_BIND_ACCEPTED */ +static gint hf_s5066_03_sapid = -1; +static gint hf_s5066_03_unused = -1; +static gint hf_s5066_03_mtu = -1; + +/* Type 4: S_BIND_REJECTED */ +static gint hf_s5066_04_reason = -1; +static const value_string s5066_04_reason[] = { + { 0, "Unknown reason"}, + { 1, "Not enough resources"}, + { 2, "Invalid Sap ID"}, + { 3, "Sap ID already allocated"}, + { 4, "ARQ mode unsupportable during broadcast session"}, + { 0, NULL }, +}; + +/* Type 5: S_UNBIND_INDICATION */ +static gint hf_s5066_05_reason = -1; +static const value_string s5066_05_reason[] = { + { 0, "Unknown reason"}, + { 1, "Connection pre-empted by higher ranking client"}, + { 2, "Inactivity (failure to respond to 'Keep-alive')"}, + { 3, "Too many invalid primitives"}, + { 4, "Too many expedited data request primitives"}, + { 5, "ARQ mode unsupportable during broadcast session"}, + { 0, NULL }, +}; + +/* Hard links: hardlinktype value string array. */ +static const value_string s5066_hard_link_type[] = { + { 0, "Link reservation"}, + { 1, "Partial Bandwidth reservation"}, + { 2, "Full Bandwidth reservation"}, + { 3, "--- undefined ---"}, + { 0, NULL }, +}; + +/* Type 6: S_HARD_LINK_ESTABLISH */ +static gint hf_s5066_06_link_type = -1; +static gint hf_s5066_06_link_priority = -1; +static gint hf_s5066_06_sapid = -1; + +/* Type 7: S_HARD_LINK_TERMINATE */ +/* Only remote node address */ + +/* Type 8: S_HARD_LINK_ESTABLISHED */ +static gint hf_s5066_08_remote_status = -1; +static const value_string s5066_08_remote_status[] = { + { 0, "ERROR"}, + { 1, "OK"}, + { 0, NULL }, +}; +static gint hf_s5066_08_link_type = -1; +static gint hf_s5066_08_link_priority = -1; +static gint hf_s5066_08_sapid = -1; + +/* Type 9: S_HARD_LINK_REJECTED */ +static gint hf_s5066_09_reason = -1; +static const value_string s5066_09_reason[] = { + { 0, "--- undefined ---"}, + { 1, "Remote node busy"}, + { 2, "Higher priority link exists"}, + { 3, "Remote node not responding"}, + { 4, "Destination Sap ID not bound"}, + { 5, "Requested Type-0 link exists"}, + { 0, NULL }, +}; +static gint hf_s5066_09_link_type = -1; +static gint hf_s5066_09_link_priority = -1; +static gint hf_s5066_09_sapid = -1; + +/* Type 10: S_HARD_LINK_TERMINATED */ +static gint hf_s5066_10_reason = -1; +static const value_string s5066_10_reason[] = { + { 0, "--- undefined ---"}, + { 1, "Link terminated by remote node"}, + { 2, "Higher priority link requested"}, + { 3, "Remote node not responding"}, + { 4, "Destination Sap ID not bound"}, + { 5, "Physical link broken"}, + { 0, NULL }, +}; +static gint hf_s5066_10_link_type = -1; +static gint hf_s5066_10_link_priority = -1; +static gint hf_s5066_10_sapid = -1; + +/* Type 11: S_HARD_LINK_INDICATION */ +static gint hf_s5066_11_remote_status = -1; +static const value_string s5066_11_remote_status[] = { + { 0, "ERROR"}, + { 1, "OK"}, + { 0, NULL }, +}; +static gint hf_s5066_11_link_type = -1; +static gint hf_s5066_11_link_priority = -1; +static gint hf_s5066_11_sapid = -1; + +/* Type 12: S_HARD_LINK_ACCEPT */ +static gint hf_s5066_12_link_type = -1; +static gint hf_s5066_12_link_priority = -1; +static gint hf_s5066_12_sapid = -1; + +/* Type 13: S_HARD_LINK_REJECT */ +static gint hf_s5066_13_reason = -1; +static const value_string s5066_13_reason[] = { + { 0, "--- undefined ---"}, + { 0, NULL }, +}; +static gint hf_s5066_13_link_type = -1; +static gint hf_s5066_13_link_priority = -1; +static gint hf_s5066_13_sapid = -1; + +/* Type 14: S_SUBNET_AVAILABILITY */ +static gint hf_s5066_14_status= -1; +static const value_string s5066_14_status[] = { + { 0, "Off"}, + { 1, "On"}, + { 2, "Receive only"}, + { 3, "Half-duplex"}, + { 4, "Full-duplex"}, + { 0, NULL }, +}; +static gint hf_s5066_14_reason= -1; +static const value_string s5066_14_reason[] = { + { 0, "Unknown reason"}, + { 1, "Local node in EMCON"}, + { 2, "Higher priority link requested"}, + { 0, NULL }, +}; + +/* 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 */ +static gint hf_s5066_18_type = -1; +static gint hf_s5066_18_body = -1; + +/* Type 19: S_MANAGEMENT_MESSAGE_INDICATION */ +static gint hf_s5066_19_type = -1; +static gint hf_s5066_19_body = -1; + +/* Type 20: S_UNIDATA_REQUEST */ +static gint hf_s5066_20_priority = -1; +static gint hf_s5066_20_sapid = -1; +static gint hf_s5066_20_ttl = -1; +static gint hf_s5066_20_size = -1; + +/* Type 21: S_UNIDATA_INDICATION */ +static gint hf_s5066_21_priority = -1; +static gint hf_s5066_21_dest_sapid = -1; +static gint hf_s5066_21_tx_mode = -1; +static gint hf_s5066_21_src_sapid = -1; +static gint hf_s5066_21_size = -1; +static gint hf_s5066_21_err_blocks = -1; +static gint hf_s5066_21_err_ptr = -1; +static gint hf_s5066_21_err_size = -1; +static gint hf_s5066_21_nrx_blocks = -1; +static gint hf_s5066_21_nrx_ptr = -1; +static gint hf_s5066_21_nrx_size = -1; + + +/* Type 22: S_UNIDATA_REQUEST_CONFIRM */ +static gint hf_s5066_22_unused = -1; +static gint hf_s5066_22_sapid = -1; +static gint hf_s5066_22_size = -1; +static gint hf_s5066_22_data = -1; + +/* Type 23: S_UNIDATA_REQUEST_REJECTED */ +static gint hf_s5066_23_reason = -1; +static const value_string s5066_23_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_23_sapid = -1; +static gint hf_s5066_23_size = -1; +static gint hf_s5066_23_data = -1; + +/* Type 24: S_EXPEDITED_UNIDATA_REQUEST */ +static gint hf_s5066_24_unused = -1; +static gint hf_s5066_24_sapid = -1; +static gint hf_s5066_24_ttl = -1; +static gint hf_s5066_24_size = -1; + +/* Type 25: S_EXPEDITED_UNIDATA_INDICATION */ +static gint hf_s5066_25_unused = -1; +static gint hf_s5066_25_dest_sapid = -1; +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_err_ptr = -1; +static gint hf_s5066_25_err_size = -1; +static gint hf_s5066_25_nrx_blocks = -1; +static gint hf_s5066_25_nrx_ptr = -1; +static gint hf_s5066_25_nrx_size = -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 preamble", "s5066sis.sync", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_version, + { "S5066 version", "s5066sis.version", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_size, + { "S_Primitive size", "s5066sis.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_type, + { "PDU Type", "s5066sis.type", FT_UINT8, BASE_DEC, VALS(s5066_pdu_type), 0x0, NULL, HFILL } + }, + /* STANAG 5066 Address */ + { &hf_s5066_ad_size, + { "Address size (1/2 Bytes)", "s5066sis.address.size", FT_UINT8, BASE_HEX, NULL, 0xE0, NULL, HFILL } + }, + { &hf_s5066_ad_group, + { "Group address", "s5066sis.address.group", FT_UINT8, BASE_HEX, NULL, 0x10, NULL, HFILL } + }, + { &hf_s5066_ad_address, + { "Address", "s5066sis.address.address", FT_IPv4, BASE_NONE, NULL, 0, NULL, HFILL } + }, + /* Service type */ + { &hf_s5066_st_txmode, + { "Transmission mode", "s5066sis.st.txmode", FT_UINT8, BASE_HEX, VALS(s5066_st_txmode), 0xF0, NULL, HFILL } + }, + { &hf_s5066_st_delivery_confirmation, + { "Delivery confirmation", "s5066sis.st.confirm", FT_UINT8, BASE_HEX, VALS(s5066_st_delivery_confirmation), 0x0C, NULL, HFILL } + }, + { &hf_s5066_st_delivery_order, + { "Delivery order", "s5066sis.st.order", FT_UINT8, BASE_HEX, VALS(s5066_st_delivery_order), 0x02, NULL, HFILL } + }, + { &hf_s5066_st_extended, + { "Extended field", "s5066sis.st.extended", FT_UINT8, BASE_HEX, VALS(s5066_st_extended), 0x01, NULL, HFILL } + }, + { &hf_s5066_st_retries, + { "Minimum number of retransmissions", "s5066sis.st.retries", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + /* PDU Type 01: S_BIND_REQUEST */ + { &hf_s5066_01_sapid, + { "Sap ID", "s5066sis.01.sapid", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066_01_rank, + { "Rank", "s5066sis.01.rank", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_01_unused, + { "(Unused)", "s5066sis.01.unused", FT_UINT8, BASE_HEX, NULL, 0x0F, NULL, HFILL } + }, + /* PDU Type 02: S_UNBIND_REQUEST */ + /* --- no subfields --- */ + /* PDU Type 03: S_BIND_ACCEPTED */ + { &hf_s5066_03_sapid, + { "Sap ID", "s5066sis.03.sapid", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066_03_unused, + { "(Unused)", "s5066sis.03.unused", FT_UINT8, BASE_HEX, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_03_mtu, + { "MTU", "s5066sis.03.mtu", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + /* PDU Type 04: S_BIND_REJECTED */ + { &hf_s5066_04_reason, + { "Reason", "s5066sis.04.reason", FT_UINT8, BASE_DEC, VALS(s5066_04_reason), 0x0, NULL, HFILL } + }, + /* PDU Type 05: S_UNBIND_INDICATION */ + { &hf_s5066_05_reason, + { "Reason", "s5066sis.05.reason", FT_UINT8, BASE_DEC, VALS(s5066_05_reason), 0x0, NULL, HFILL } + }, + /* Type 6: S_HARD_LINK_ESTABLISH */ + { &hf_s5066_06_link_type, + { "Hardlink type", "s5066sis.06.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, NULL, HFILL } + }, + { &hf_s5066_06_link_priority, + { "Priority", "s5066sis.06.priority", FT_UINT8, BASE_DEC, NULL, 0x30, NULL, HFILL } + }, + { &hf_s5066_06_sapid, + { "Remote Sap ID", "s5066sis.06.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, 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", "s5066sis.08.status", FT_UINT8, BASE_DEC, VALS(s5066_08_remote_status), 0x0, NULL, HFILL } + }, + { &hf_s5066_08_link_type, + { "Hardlink type", "s5066sis.08.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, NULL, HFILL } + }, + { &hf_s5066_08_link_priority, + { "Priority", "s5066sis.08.priority", FT_UINT8, BASE_DEC, NULL, 0x30, NULL, HFILL } + }, + { &hf_s5066_08_sapid, + { "Remote Sap ID", "s5066sis.08.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + /* Type 9: S_HARD_LINK_REJECTED */ + { &hf_s5066_09_reason, + { "Reason", "s5066sis.09.reason", FT_UINT8, BASE_DEC, VALS(s5066_09_reason), 0x0, NULL, HFILL } + }, + { &hf_s5066_09_link_type, + { "Hardlink type", "s5066sis.09.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, NULL, HFILL } + }, + { &hf_s5066_09_link_priority, + { "Priority", "s5066sis.09.priority", FT_UINT8, BASE_DEC, NULL, 0x30, NULL, HFILL } + }, + { &hf_s5066_09_sapid, + { "Remote Sap ID", "s5066sis.09.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + /* Type 10: S_HARD_LINK_TERMINATED */ + { &hf_s5066_10_reason, + { "Reason", "s5066sis.10.reason", FT_UINT8, BASE_DEC, VALS(s5066_10_reason), 0x0, NULL, HFILL } + }, + { &hf_s5066_10_link_type, + { "Hardlink type", "s5066sis.10.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, NULL, HFILL } + }, + { &hf_s5066_10_link_priority, + { "Priority", "s5066sis.10.priority", FT_UINT8, BASE_DEC, NULL, 0x30, NULL, HFILL } + }, + { &hf_s5066_10_sapid, + { "Remote Sap ID", "s5066sis.10.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + /* Type 11: S_HARD_LINK_INDICATION */ + { &hf_s5066_11_remote_status, + { "Remote node status", "s5066sis.11.status", FT_UINT8, BASE_DEC, VALS(s5066_11_remote_status), 0x0, NULL, HFILL } + }, + { &hf_s5066_11_link_type, + { "Hardlink type", "s5066sis.11.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, NULL, HFILL } + }, + { &hf_s5066_11_link_priority, + { "Priority", "s5066sis.11.priority", FT_UINT8, BASE_DEC, NULL, 0x30, NULL, HFILL } + }, + { &hf_s5066_11_sapid, + { "Remote Sap ID", "s5066sis.11.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + /* Type 12: S_HARD_LINK_ACCEPT */ + { &hf_s5066_12_link_type, + { "Hardlink type", "s5066sis.12.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, NULL, HFILL } + }, + { &hf_s5066_12_link_priority, + { "Priority", "s5066sis.12.priority", FT_UINT8, BASE_DEC, NULL, 0x30, NULL, HFILL } + }, + { &hf_s5066_12_sapid, + { "Remote Sap ID", "s5066sis.12.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + /* Type 13: S_HARD_LINK_REJECT */ + { &hf_s5066_13_reason, + { "Reason", "s5066sis.13.reason", FT_UINT8, BASE_DEC, VALS(s5066_13_reason), 0x0, NULL, HFILL } + }, + { &hf_s5066_13_link_type, + { "Hardlink type", "s5066sis.13.type", FT_UINT8, BASE_DEC, VALS(s5066_hard_link_type), 0xC0, NULL, HFILL } + }, + { &hf_s5066_13_link_priority, + { "Priority", "s5066sis.13.priority", FT_UINT8, BASE_DEC, NULL, 0x30, NULL, HFILL } + }, + { &hf_s5066_13_sapid, + { "Remote Sap ID", "s5066sis.13.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + /* Type 14: S_SUBNET_AVAILABILITY */ + { &hf_s5066_14_status, + { "Status", "s5066sis.14.status", FT_UINT8, BASE_DEC, VALS(s5066_14_status), 0x0, NULL, HFILL } + }, + { &hf_s5066_14_reason, + { "Reason", "s5066sis.14.reason", FT_UINT8, BASE_DEC, VALS(s5066_14_reason), 0x0, NULL, 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", "s5066sis.18.type", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_18_body, + { "Message Body", "s5066sis.18.body", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + /* Type 19: S_MANAGEMENT_MESSAGE_INDICATION */ + { &hf_s5066_19_type, + { "Message Type", "s5066sis.19.type", FT_UINT8, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_19_body, + { "Message Body", "s5066sis.19.body", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + /* Type 20: S_UNIDATA_REQUEST */ + { &hf_s5066_20_priority, + { "Priority", "s5066sis.20.priority", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066_20_sapid, + { "Destination Sap ID", "s5066sis.20.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_20_ttl, + { "Time-To-Live (x2 seconds)", "s5066sis.20.ttl", FT_UINT24, BASE_DEC, NULL, 0x0FFFFF, NULL, HFILL } + }, + { &hf_s5066_20_size, + { "U_PDU Size", "s5066sis.20.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + /* Type 21: S_UNIDATA_INDICATION */ + { &hf_s5066_21_priority, + { "Priority", "s5066sis.21.priority", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066_21_dest_sapid, + { "Destination Sap ID", "s5066sis.21.dest_sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_21_tx_mode, + { "Transmission Mode", "s5066sis.21.txmode", FT_UINT8, BASE_HEX, VALS(s5066_st_txmode), 0xF0, NULL, HFILL } + }, + { &hf_s5066_21_src_sapid, + { "Source Sap ID", "s5066sis.21.src_sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_21_size, + { "U_PDU Size", "s5066sis.21.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_21_err_blocks, + { "Number of errored blocks", "s5066sis.21.err_blocks", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_21_err_ptr, + { "Pointer to error block", "s5066sis.21.err_ptr", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_21_err_size, + { "Size of error block", "s5066sis.21.err_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_21_nrx_blocks, + { "Number of non-received blocks", "s5066sis.21.nrx_blocks", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_21_nrx_ptr, + { "Pointer to non-received block", "s5066sis.21.nrx_ptr", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_21_nrx_size, + { "Size of non-received block", "s5066sis.21.nrx_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + /* Type 22: S_UNIDATA_REQUEST_CONFIRM */ + { &hf_s5066_22_unused, + { "(Unused)", "s5066sis.22.unused", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066_22_sapid, + { "Destination Sap ID", "s5066sis.22.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_22_size, + { "U_PDU Size", "s5066sis.22.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_22_data, + { "(Part of) Confirmed data", "s5066sis.22.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + /* Type 23: S_UNIDATA_REQUEST_REJECTED */ + { &hf_s5066_23_reason, + { "Reason", "s5066sis.23.reason", FT_UINT8, BASE_DEC, VALS(s5066_23_reason), 0xF0, NULL, HFILL } + }, + { &hf_s5066_23_sapid, + { "Destination Sap ID", "s5066sis.23.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_23_size, + { "U_PDU Size", "s5066sis.23.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_23_data, + { "(Part of) Rejected data", "s5066sis.23.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + /* Type 24: S_EXPEDITED_UNIDATA_REQUEST */ + { &hf_s5066_24_unused, + { "(Unused)", "s5066sis.24.unused", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066_24_sapid, + { "Destination Sap ID", "s5066sis.24.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_24_ttl, + { "Time-To-Live (x2 seconds)", "s5066sis.24.ttl", FT_UINT24, BASE_DEC, NULL, 0x0FFFFF, NULL, HFILL } + }, + { &hf_s5066_24_size, + { "U_PDU Size", "s5066sis.24.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + /* Type 25: S_EXPEDITED_UNIDATA_INDICATION */ + { &hf_s5066_25_unused, + { "(Unused)", "s5066sis.25.unused", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066_25_dest_sapid, + { "Destination Sap ID", "s5066sis.25.dest_sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_25_tx_mode, + { "Transmission Mode", "s5066sis.25.txmode", FT_UINT8, BASE_HEX, VALS(s5066_st_txmode), 0xF0, NULL, HFILL } + }, + { &hf_s5066_25_src_sapid, + { "Source Sap ID", "s5066sis.25.src_sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_25_size, + { "U_PDU Size", "s5066sis.25.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_25_err_blocks, + { "Number of errored blocks", "s5066sis.25.err_blocks", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_25_err_ptr, + { "Pointer to error block", "s5066sis.25.err_ptr", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_25_err_size, + { "Size of error block", "s5066sis.25.err_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_25_nrx_blocks, + { "Number of non-received blocks", "s5066sis.25.nrx_blocks", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_25_nrx_ptr, + { "Pointer to non-received block", "s5066sis.25.nrx_ptr", FT_UINT16, BASE_HEX, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_25_nrx_size, + { "Size of non-received block", "s5066sis.25.nrx_size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + /* Type 26: S_EXPEDITED_UNIDATA_REQUEST_CONFIRM */ + { &hf_s5066_26_unused, + { "(Unused)", "s5066sis.26.unused", FT_UINT8, BASE_DEC, NULL, 0xF0, NULL, HFILL } + }, + { &hf_s5066_26_sapid, + { "Destination Sap ID", "s5066sis.26.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_26_size, + { "U_PDU Size", "s5066sis.26.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_26_data, + { "(Part of) Confirmed data", "s5066sis.26.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + /* Type 27: S_EXPEDITED_UNIDATA_REQUEST_REJECTED */ + { &hf_s5066_27_reason, + { "Reason", "s5066sis.27.reason", FT_UINT8, BASE_DEC, VALS(s5066_27_reason), 0xF0, NULL, HFILL } + }, + { &hf_s5066_27_sapid, + { "Destination Sap ID", "s5066sis.27.sapid", FT_UINT8, BASE_DEC, NULL, 0x0F, NULL, HFILL } + }, + { &hf_s5066_27_size, + { "U_PDU Size", "s5066sis.27.size", FT_UINT16, BASE_DEC, NULL, 0x0, NULL, HFILL } + }, + { &hf_s5066_27_data, + { "(Part of) Rejected data", "s5066sis.27.data", FT_BYTES, BASE_NONE, NULL, 0x0, NULL, HFILL } + }, + + }; + + /* Setup protocol subtree array */ + static gint *ett[] = { + &ett_s5066, + &ett_s5066_pdu, + &ett_s5066_servicetype, + &ett_s5066_address, + }; + + module_t *s5066_module; + + proto_s5066 = proto_register_protocol ( + "STANAG 5066 (SIS layer)", /* name */ + "STANAG 5066 SIS", /* short name*/ + "s5066sis" /* 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 SIS PDUs spanning multiple TCP segments", + "Whether the S5066 SIS 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 SIS dissector should dissect this edition of the STANAG." + " This edition was never formally approved and is very rare. The common edition is edition 1.2.", + &s5066_edition_one); + prefs_register_uint_preference(s5066_module, "tcp.port", + "STANAG 5066 SIS TCP Port", + "Set the port for STANAG 5066 SIS. (If other than the default 5066." + " This number is registered with IANA.)", + 10, &global_s5066_port); +} + +void +proto_reg_handoff_s5066(void) +{ + static gboolean Initialized = FALSE; + static dissector_handle_t s5066_tcp_handle; + static guint saved_s5066_port; + + if (!Initialized) { + s5066_tcp_handle = create_dissector_handle(dissect_s5066_tcp, proto_s5066); + data_handle = find_dissector("data"); + Initialized = TRUE; + } else { + dissector_delete_uint("tcp.port", saved_s5066_port, s5066_tcp_handle); + } + + dissector_add_uint("tcp.port", global_s5066_port, s5066_tcp_handle); + saved_s5066_port = global_s5066_port; + + 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 addr; + + 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, ENC_BIG_ENDIAN); + proto_tree_add_item(s5066_tree_address, hf_s5066_ad_group, tvb, offset, 1, ENC_BIG_ENDIAN); + addr = tvb_get_ntohl(tvb, offset); + addr = addr & 0x1FFFFFFF; + proto_tree_add_ipv4(s5066_tree_address, hf_s5066_ad_address, tvb, offset, 4, g_htonl(addr)); + + 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, ENC_BIG_ENDIAN); + proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_delivery_confirmation, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_delivery_order, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_extended, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(s5066_tree_servicetype, hf_s5066_st_retries, tvb, offset, 1, ENC_BIG_ENDIAN); + + 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_01_rank, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + + offset = dissect_s5066_servicetype(tvb, offset, tree); + + proto_tree_add_item(tree, hf_s5066_01_unused, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_03_unused, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066_03_mtu, tvb, offset, 2, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_06_link_priority, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_06_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066_08_link_type, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_08_link_priority, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_08_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066_09_link_type, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_09_link_priority, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_09_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066_10_link_type, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_10_link_priority, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_10_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066_11_link_type, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_11_link_priority, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_11_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_12_link_priority, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_12_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066_13_link_type, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_13_link_priority, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_13_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset++; + proto_tree_add_item(tree, hf_s5066_14_reason, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset++; + body_size = pdu_size - offset; + proto_tree_add_item(tree, hf_s5066_18_body, tvb, offset, body_size, ENC_NA); 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, ENC_BIG_ENDIAN); offset++; + body_size = pdu_size - offset; + proto_tree_add_item(tree, hf_s5066_19_body, tvb, offset, body_size, ENC_NA); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_20_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset += 3; + proto_tree_add_item(tree, hf_s5066_20_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + + return offset; +} + +/* S_UNIDATA_INDICATION */ +static guint +dissect_s5066_21(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size) +{ + guint i=0; + proto_item *ti = NULL; + guint d_pdu_size = 0; + guint8 tx_mode = 0; + guint16 no_err_blocks = 0; + guint16 no_nrx_blocks = 0; + gboolean non_arq_w_errors = FALSE; + + proto_tree_add_item(tree, hf_s5066_21_priority, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_21_dest_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + offset = dissect_s5066_address(tvb, offset, tree, FALSE); + + tx_mode = tvb_get_guint8(tvb, offset); + tx_mode = (tx_mode & 0xF0) >> 4; + if (tx_mode == 3) { + non_arq_w_errors = TRUE; + } + + proto_tree_add_item(tree, hf_s5066_21_tx_mode, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_21_src_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset += 2; + proto_item_append_text(ti, ", (Field should not be present. Rockwell Collins v2.1 or earlier.) "); + } + /* Handle Non-ARQ with errors */ + if ( non_arq_w_errors ) { + no_err_blocks = tvb_get_ntohs(tvb, offset); + proto_tree_add_item(tree, hf_s5066_21_err_blocks, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + for (i=0; i<no_err_blocks; i++) { + proto_tree_add_item(tree, hf_s5066_21_err_ptr, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(tree, hf_s5066_21_err_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + } + no_nrx_blocks = tvb_get_ntohs(tvb, offset); + proto_tree_add_item(tree, hf_s5066_21_nrx_blocks, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + for (i=0; i<no_nrx_blocks; i++) { + proto_tree_add_item(tree, hf_s5066_21_nrx_ptr, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(tree, hf_s5066_21_nrx_size, tvb, offset, 2, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_22_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(tree, hf_s5066_22_data, tvb, offset, pdu_size, ENC_NA); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_23_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(tree, hf_s5066_23_data, tvb, offset, pdu_size, ENC_NA); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_24_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset += 3; + proto_tree_add_item(tree, hf_s5066_24_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + + return offset; +} + +/* S_EXPEDITED_UNIDATA_INDICATION */ +static guint +dissect_s5066_25(tvbuff_t *tvb, guint offset, proto_tree *tree, guint pdu_size) +{ + guint i=0; + proto_item *ti = NULL; + guint d_pdu_size = 0; + guint8 tx_mode = 0; + guint16 no_err_blocks = 0; + guint16 no_nrx_blocks = 0; + gboolean non_arq_w_errors = FALSE; + + proto_tree_add_item(tree, hf_s5066_25_unused, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_25_dest_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + offset = dissect_s5066_address(tvb, offset, tree, FALSE); + + tx_mode = tvb_get_guint8(tvb, offset); + tx_mode = (tx_mode & 0xF0) >> 4; + if (tx_mode == 3) { + non_arq_w_errors = TRUE; + } + + proto_tree_add_item(tree, hf_s5066_25_tx_mode, tvb, offset, 1, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_25_src_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + offset = dissect_s5066_address(tvb, offset, tree, TRUE); + + d_pdu_size = tvb_get_ntohs(tvb, offset); + proto_tree_add_item(tree, hf_s5066_25_size, tvb, offset, 2, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset += 2; + proto_item_append_text(ti, ", (Field should not be present. Rockwell Collins v2.1 or earlier.) "); + } + /* Handle Non-ARQ with errors */ + if ( non_arq_w_errors ) { + no_err_blocks = tvb_get_ntohs(tvb, offset); + proto_tree_add_item(tree, hf_s5066_25_err_blocks, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + for (i=0; i<no_err_blocks; i++) { + proto_tree_add_item(tree, hf_s5066_25_err_ptr, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(tree, hf_s5066_25_err_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + } + no_nrx_blocks = tvb_get_ntohs(tvb, offset); + proto_tree_add_item(tree, hf_s5066_25_nrx_blocks, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + for (i=0; i<no_nrx_blocks; i++) { + proto_tree_add_item(tree, hf_s5066_25_nrx_ptr, tvb, offset, 2, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(tree, hf_s5066_25_nrx_size, tvb, offset, 2, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_26_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(tree, hf_s5066_26_data, tvb, offset, pdu_size, ENC_NA); 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, ENC_BIG_ENDIAN); + proto_tree_add_item(tree, hf_s5066_27_sapid, tvb, offset, 1, ENC_BIG_ENDIAN); 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, ENC_BIG_ENDIAN); offset += 2; + proto_tree_add_item(tree, hf_s5066_27_data, tvb, offset, pdu_size, ENC_NA); offset += pdu_size; + + return offset; +} + +static guint +get_s5066_pdu_len(packet_info *pinfo _U_, 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); + + col_set_str(pinfo->cinfo, COL_PROTOCOL, "S5066"); + /* Clear out stuff in the info column, the add PDU type */ + 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, ENC_NA); + 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, ENC_BIG_ENDIAN); offset +=2; + if (!s5066_edition_one) { + proto_tree_add_item(s5066_tree, hf_s5066_version, tvb, offset, 1, ENC_BIG_ENDIAN); offset++; + } + proto_tree_add_item(s5066_tree, hf_s5066_size, tvb, offset, 2, ENC_BIG_ENDIAN); offset +=2; + ti_pdu = proto_tree_add_item(s5066_tree, hf_s5066_type, tvb, offset, 1, ENC_BIG_ENDIAN); 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); + + /* 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; +} |