forked from osmocom/wireshark
31a54708f4
Change-Id: Ie39ef054a4a942687bd079f3a4d8c2cc55d5f22c Reviewed-on: https://code.wireshark.org/review/12485 Petri-Dish: Michael Mann <mmann78@netscape.net> Reviewed-by: Michael Mann <mmann78@netscape.net>
302 lines
11 KiB
C
302 lines
11 KiB
C
/* packet-link16.c
|
|
* Routines for Link 16 message dissection (MIL-STD-6016)
|
|
* William Robertson <aliask@gmail.com>
|
|
* Peter Ross <peter.ross@dsto.defence.gov.au>
|
|
*
|
|
* 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 <epan/packet.h>
|
|
#include "packet-link16.h"
|
|
|
|
void proto_register_link16(void);
|
|
|
|
/* Elmasry, G., (2012), Tactical Wireless Communications and Networks: Design Concepts and Challenges, Wiley, ISBN 9781119951766. */
|
|
enum {
|
|
WORDFORMAT_INITIAL = 0,
|
|
WORDFORMAT_CONTINUATION,
|
|
WORDFORMAT_EXTENSION
|
|
};
|
|
|
|
static const value_string WordFormat_Strings[] = {
|
|
{ WORDFORMAT_INITIAL, "Initial Word" },
|
|
{ WORDFORMAT_CONTINUATION, "Continuation Word" },
|
|
{ WORDFORMAT_EXTENSION, "Extension Word" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
/* Viasat, Inc., (2012), Link 16 Network Participant Group and Message Card, accessed from <http://www.viasat.com/files/assets/assets/Link16_NPG_Message_Card_100112a.pdf> on 15 April 2013. */
|
|
static const value_string Link16_Label_Strings[] = {
|
|
{ 0, "Network Management" },
|
|
{ 1, "Network Management" },
|
|
{ 2, "Precise Participant Location and Identification" },
|
|
{ 3, "Surveillance" },
|
|
{ 5, "Anti-submarine Warfare" },
|
|
{ 6, "Intelligence" },
|
|
{ 7, "Information Management" },
|
|
{ 8, "Information Management" },
|
|
{ 9, "Weapons Coordination and Management" },
|
|
{ 10, "Weapons Coordination and Management" },
|
|
{ 11, "Weapons Coordination and Management" },
|
|
{ 12, "Control" },
|
|
{ 13, "Platform and System Status" },
|
|
{ 14, "Electronic Warfare" },
|
|
{ 15, "Threat Warning" },
|
|
{ 16, "Imagery" },
|
|
{ 17, "Weather" },
|
|
{ 28, "National Use" },
|
|
{ 29, "National Use" },
|
|
{ 30, "National Use" },
|
|
{ 31, "Miscellaneous" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
/* Viasat, Inc., (2012), Link 16 Network Participant Group and Message Card, accessed from <http://www.viasat.com/files/assets/assets/Link16_NPG_Message_Card_100112a.pdf> on 15 April 2013. */
|
|
#define MKPAIR(a, b) (((b) << 5) | (a))
|
|
static const value_string Link16_Message_Strings[] = {
|
|
{ MKPAIR(0, 0), "Initial Entry" },
|
|
{ MKPAIR(0, 1), "Test" },
|
|
{ MKPAIR(0, 2), "Network Time Update" },
|
|
{ MKPAIR(0, 3), "Time Slot Assignment" },
|
|
{ MKPAIR(0, 4), "Radio Relay Control" },
|
|
{ MKPAIR(0, 5), "Repromulgation Relay" },
|
|
{ MKPAIR(0, 6), "Communication Control" },
|
|
{ MKPAIR(0, 7), "Time Slot Reallocation" },
|
|
{ MKPAIR(1, 0), "Connectivity Interrogation" },
|
|
{ MKPAIR(1, 1), "Connectivity Status" },
|
|
{ MKPAIR(1, 2), "Route Establishment" },
|
|
{ MKPAIR(1, 3), "Acknowledgment" },
|
|
{ MKPAIR(1, 4), "Communication Status" },
|
|
{ MKPAIR(1, 5), "Net Control Initialization" },
|
|
{ MKPAIR(1, 6), "Needline Participation Group Assignment" },
|
|
{ MKPAIR(2, 0), "Indirect Interface Unit PPLI" },
|
|
{ MKPAIR(2, 2), "Air PPLI" },
|
|
{ MKPAIR(2, 3), "Surface PPLI" },
|
|
{ MKPAIR(2, 4), "Subsurface PPLI" },
|
|
{ MKPAIR(2, 5), "Land Point PPLI" },
|
|
{ MKPAIR(2, 6), "Land Track PPLI" },
|
|
{ MKPAIR(3, 0), "Reference Point" },
|
|
{ MKPAIR(3, 1), "Emergency Point" },
|
|
{ MKPAIR(3, 2), "Air Track" },
|
|
{ MKPAIR(3, 3), "Surface Track" },
|
|
{ MKPAIR(3, 4), "Subsurface Track" },
|
|
{ MKPAIR(3, 5), "Land Point or Track" },
|
|
{ MKPAIR(3, 6), "Space Track" },
|
|
{ MKPAIR(3, 7), "Electronic Warfare Product Information" },
|
|
{ MKPAIR(5, 4), "Acoustic Bearing and Range" },
|
|
{ MKPAIR(6, 0), "Amplification" },
|
|
{ MKPAIR(7, 0), "Track Management" },
|
|
{ MKPAIR(7, 1), "Data Update Request" },
|
|
{ MKPAIR(7, 2), "Correlation" },
|
|
{ MKPAIR(7, 3), "Pointer" },
|
|
{ MKPAIR(7, 4), "Track Identifier" },
|
|
{ MKPAIR(7, 5), "IFF/SIF Management" },
|
|
{ MKPAIR(7, 6), "Filter Management" },
|
|
{ MKPAIR(7, 7), "Association" },
|
|
{ MKPAIR(8, 0), "Unit Designator" },
|
|
{ MKPAIR(8, 1), "Mission Correlator Change" },
|
|
{ MKPAIR(9, 0), "Command" },
|
|
{ MKPAIR(10, 2), "Engagement Status" },
|
|
{ MKPAIR(10, 3), "Handover" },
|
|
{ MKPAIR(10, 5), "Controlling Unit Report" },
|
|
{ MKPAIR(10, 6), "Pairing" },
|
|
{ MKPAIR(11, 0), "From the Weapon" },
|
|
{ MKPAIR(11, 1), "To the Weapon" },
|
|
{ MKPAIR(11, 2), "Weapon Coordination" },
|
|
{ MKPAIR(12, 0), "Mission Assignment" },
|
|
{ MKPAIR(12, 1), "Vector" },
|
|
{ MKPAIR(12, 2), "Precision Aircraft Direction" },
|
|
{ MKPAIR(12, 3), "Flight Path" },
|
|
{ MKPAIR(12, 4), "Controlling Unit Change" },
|
|
{ MKPAIR(12, 5), "Target/Track Correlation" },
|
|
{ MKPAIR(12, 6), "Target Sorting" },
|
|
{ MKPAIR(12, 7), "Target Bearing" },
|
|
{ MKPAIR(13, 0), "Airfield Status" },
|
|
{ MKPAIR(13, 2), "Air Platform and System Status" },
|
|
{ MKPAIR(13, 3), "Surface Platform and System Status" },
|
|
{ MKPAIR(13, 4), "Subsurface Platform and System Status" },
|
|
{ MKPAIR(13, 5), "Land Platform and System Status" },
|
|
{ MKPAIR(14, 0), "Parametric Information" },
|
|
{ MKPAIR(14, 2), "Electronic Warfare Control / Coordination" },
|
|
{ MKPAIR(15, 0), "Threat Warning" },
|
|
{ MKPAIR(16, 0), "Imagery" },
|
|
{ MKPAIR(17, 0), "Weather Over target" },
|
|
{ MKPAIR(28, 0), "U.S. National 1 (Army)" },
|
|
{ MKPAIR(28, 1), "U.S. National 2 (Navy)" },
|
|
{ MKPAIR(28, 2), "U.S. National 3 (Air Force)" },
|
|
{ MKPAIR(28, 3), "U.S. National 4 (Marine Corps)" },
|
|
{ MKPAIR(28, 4), "French National 1" },
|
|
{ MKPAIR(28, 5), "French National 2" },
|
|
{ MKPAIR(28, 6), "U.S. National 5 (NSA)" },
|
|
{ MKPAIR(28, 7), "UK National" },
|
|
{ MKPAIR(31, 0), "Over-the-Air Rekeying Management" },
|
|
{ MKPAIR(31, 1), "Over-the-Air Rekeying" },
|
|
{ MKPAIR(31, 7), "No Statement" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
/* Viasat, Inc., (2012), Link 16 Network Participant Group and Message Card, accessed from <http://www.viasat.com/files/assets/assets/Link16_NPG_Message_Card_100112a.pdf> on 15 April 2013. */
|
|
const value_string Link16_NPG_Strings[] = {
|
|
{ 1, "Initial Entry" },
|
|
{ 2, "RTT-A" },
|
|
{ 3, "RTT-B" },
|
|
{ 4, "Network Management" },
|
|
{ 5, "PPLI and Status" },
|
|
{ 6, "PPLI and Status" },
|
|
{ 7, "Surveillance" },
|
|
{ 8, "Mission Management/Weapons Coordination" },
|
|
{ 9, "Control" },
|
|
{ 11, "Image Transfer" },
|
|
{ 12, "Voice A" },
|
|
{ 13, "Voice B" },
|
|
{ 18, "Network Enabled Weapons" },
|
|
{ 19, "Fighter-to-Fighter A" },
|
|
{ 20, "Fighter-to-Fighter B" },
|
|
{ 21, "Engagement Coordination" },
|
|
{ 27, "Joint Net PPLI" },
|
|
{ 28, "Distributed Network Management" },
|
|
{ 0, NULL },
|
|
};
|
|
|
|
static int proto_link16 = -1;
|
|
|
|
static gint hf_link16_wordformat = -1;
|
|
static gint hf_link16_label = -1;
|
|
static gint hf_link16_sublabel = -1;
|
|
static gint hf_link16_mli = -1;
|
|
static gint hf_link16_contlabel = -1;
|
|
|
|
static gint ett_link16 = -1;
|
|
|
|
static const int *link16_initial_word_fields[] = {
|
|
&hf_link16_wordformat,
|
|
&hf_link16_label,
|
|
&hf_link16_sublabel,
|
|
&hf_link16_mli,
|
|
NULL
|
|
};
|
|
|
|
static const int * link16_continuation_word_fields[] = {
|
|
&hf_link16_wordformat,
|
|
&hf_link16_contlabel,
|
|
NULL
|
|
};
|
|
|
|
static const int * link16_extension_or_other_word_fields[] = {
|
|
&hf_link16_wordformat,
|
|
NULL
|
|
};
|
|
|
|
static const int ** link16_fields[4] = {
|
|
link16_initial_word_fields,
|
|
link16_continuation_word_fields,
|
|
link16_extension_or_other_word_fields,
|
|
link16_extension_or_other_word_fields
|
|
};
|
|
|
|
static int dissect_link16(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data)
|
|
{
|
|
Link16State *state = (Link16State *)data;
|
|
proto_item *link16_item = NULL;
|
|
proto_tree *link16_tree = NULL;
|
|
guint16 cache;
|
|
guint8 wordformat, contlabel;
|
|
|
|
if (!state)
|
|
REPORT_DISSECTOR_BUG("Link 16 dissector state missing");
|
|
|
|
cache = tvb_get_letohs(tvb, 0);
|
|
wordformat = cache & 0x3;
|
|
|
|
col_set_str(pinfo->cinfo, COL_PROTOCOL, "Link 16");
|
|
|
|
if (tree) {
|
|
link16_item = proto_tree_add_item(tree, proto_link16, tvb, 0, -1, ENC_NA);
|
|
link16_tree = proto_item_add_subtree(link16_item, ett_link16);
|
|
proto_tree_add_bitmask_text(link16_tree, tvb, 0, 2, "Header", NULL, ett_link16, link16_fields[wordformat], ENC_LITTLE_ENDIAN, BMT_NO_APPEND);
|
|
}
|
|
|
|
/* Elmasry, G., (2012), Tactical Wireless Communications and Networks: Design Concepts and Challenges, Wiley, ISBN 9781119951766. */
|
|
switch (wordformat) {
|
|
case WORDFORMAT_INITIAL:
|
|
state->label = (cache >> 2) & 0x1F;
|
|
state->sublabel = (cache >> 7) & 0x7;
|
|
state->extension = 0;
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " J%d.%dI", state->label, state->sublabel);
|
|
|
|
proto_item_append_text(link16_item, " J%d.%dI", state->label, state->sublabel);
|
|
break;
|
|
case WORDFORMAT_EXTENSION:
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " J%d.%dE%d", state->label, state->sublabel, state->extension);
|
|
|
|
proto_item_append_text(link16_item, " J%d.%dE%d", state->label, state->sublabel, state->extension);
|
|
state->extension++;
|
|
break;
|
|
case WORDFORMAT_CONTINUATION:
|
|
contlabel = (cache >> 2) & 0x1F;
|
|
col_append_fstr(pinfo->cinfo, COL_INFO, " J%d.%dC%d", state->label, state->sublabel, contlabel);
|
|
|
|
proto_item_append_text(link16_item, " J%d.%dC%d", state->label, state->sublabel, contlabel);
|
|
}
|
|
|
|
proto_item_append_text(link16_item, " %s", val_to_str_const(MKPAIR(state->label, state->sublabel), Link16_Message_Strings, "Unknown"));
|
|
|
|
return tvb_captured_length(tvb);
|
|
}
|
|
|
|
void proto_register_link16(void)
|
|
{
|
|
static hf_register_info hf[] = {
|
|
{ &hf_link16_wordformat,
|
|
{ "Word Format", "link16.wordformat", FT_UINT16, BASE_DEC, VALS(WordFormat_Strings), 0x3,
|
|
NULL, HFILL }},
|
|
{ &hf_link16_label,
|
|
{ "Label", "link16.label", FT_UINT16, BASE_DEC, VALS(Link16_Label_Strings), 0x7C,
|
|
NULL, HFILL }},
|
|
{ &hf_link16_sublabel,
|
|
{ "Sublabel", "link16.sublabel", FT_UINT16, BASE_DEC, NULL, 0x380,
|
|
NULL, HFILL }},
|
|
{ &hf_link16_mli,
|
|
{ "Message Length Indicator", "link16.mli", FT_UINT16, BASE_DEC, NULL, 0x1C00,
|
|
NULL, HFILL }},
|
|
{ &hf_link16_contlabel,
|
|
{ "Continuation Word Label", "link16.contlabel", FT_UINT16, BASE_DEC, NULL, 0x7C,
|
|
NULL, HFILL }}
|
|
};
|
|
static gint *ett[] = {
|
|
&ett_link16,
|
|
};
|
|
|
|
proto_link16 = proto_register_protocol("Link 16", "LINK16", "link16");
|
|
proto_register_field_array(proto_link16, hf, array_length (hf));
|
|
proto_register_subtree_array(ett, array_length(ett));
|
|
register_dissector("link16", dissect_link16, proto_link16);
|
|
}
|
|
|
|
/*
|
|
* Editor modelines
|
|
*
|
|
* Local Variables:
|
|
* c-basic-offset: 4
|
|
* tab-width: 8
|
|
* indent-tabs-mode: nil
|
|
* End:
|
|
*
|
|
* ex: set shiftwidth=4 tabstop=8 expandtab:
|
|
* :indentSize=4:tabSize=8:noTabs=true:
|
|
*/
|