Adding upstream version 4.2.2.upstream/4.2.2

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 686 insertions, 0 deletions

diff --git a/epan/dissectors/packet-simple.c b/epan/dissectors/packet-simple.c
new file mode 100644
index 00000000..822b9491
--- /dev/null
+++ b/epan/dissectors/packet-simple.c
@@ -0,0 +1,686 @@
+/* packet-simple.c
+ * Routines for SIMPLE dissection
+ * Copyright 2015 Peter Ross
+ *
+ * SPDX-License-Identifier: GPL-2.0-or-later
+ */
+
+/* SIMPLE (Standard Interface for Multiple Platform Link Evaluation)
+ * is a protocol for exchanging tactical data link messages, such as Link 16,
+ * over Internet Protocols.
+ *
+ * The protocol is described in STANAG 5602. See:
+ * http://assistdoc1.dla.mil/qsDocDetails.aspx?ident_number=213042
+ */
+
+#include "config.h"
+
+#include <epan/packet.h>
+#include <epan/prefs.h>
+#include <epan/expert.h>
+#include "packet-link16.h"
+
+void proto_reg_handoff_simple(void);
+
+void proto_register_simple(void);
+
+static const range_string Node_Strings[] = {
+    { 1, 128, "Unicast" },
+    { 129, 129, "Broadcast" },
+    { 160, 168, "Multicast" },
+    { 169, 169, "Adjacent" },
+    { 0, 0, NULL },
+};
+
+static const value_string Subnode_Strings[] = {
+    { 1, "RTT" },
+    { 2, "Terminal-Host Interface" },
+    { 4, "File & Mail Transfers" },
+    { 5, "Open" },
+    { 6, "Status & Control" },
+    { 7, "Time Synchronisation" },
+    { 202, "Scenario (Script)" },
+    { 203, "IJMS" },
+    { 204, "Link 4" },
+    { 205, "Link 11" },
+    { 206, "Link 16" },
+    { 207, "Link 22" },
+    { 208, "DIS" },
+    { 209, "Voice Group A" },
+    { 210, "Voice Group B" },
+    { 211, "Link 11B" },
+    { 0, NULL },
+};
+
+enum {
+    SIMPLE_LINK16 = 1,
+    SIMPLE_STATUS = 61
+};
+
+static const value_string PacketType_Strings[] = {
+    { SIMPLE_LINK16, "Link 16" },
+    { 2, "Link 11" },
+    { 3, "Link 4" },
+    { 4, "Link 22" },
+    { 5, "Interim JTIDS Message Standard (IJMS)" },
+    { 8, "Variable Message Format (VMF)" },
+    { 10, "MIDS Terminal Specific Messages (MTSM)" },
+    { 13, "MIDS/JTIDS Voice" },
+    { 20, "Link 11B" },
+    { 32, "DIS Protocol Data Unit (PDU)" },
+    { SIMPLE_STATUS, "Status/Configuration" },
+    { 62, "E-mail/File Transfer Protocol (FTP)" },
+    { 63, "Round Trip Timing (RTT)" },
+    { 65, "Time Synchronisation" },
+    { 66, "TSA Status" },
+    { 100, "National Message" },
+    { 0, NULL },
+};
+
+enum {
+    SIMPLE_LINK16_FIXED_FORMAT = 2
+};
+
+static const value_string Link16_Subtype_Strings[] = {
+    { 0, "Uncoded Free Text" },
+    { 1, "Coded Free Text" },
+    { SIMPLE_LINK16_FIXED_FORMAT, "Fixed Format" },
+    { 0, NULL },
+};
+
+static const value_string Status_Subtype_Strings[] = {
+    { 1, "Node Status" },
+    { 0, NULL },
+};
+
+static const value_string Security_Level_Strings[] = {
+    { 0, "Unclassified" },
+    { 1, "NATO Unclassified" },
+    { 2, "Confidential" },
+    { 3, "NATO Confidential" },
+    { 4, "Secret" },
+    { 5, "NATO Secret" },
+    { 6, "National Only" },
+    { 7, "Level 7" },
+    { 8, "Level 8" },
+    { 9, "Level 9" },
+    { 0, NULL },
+};
+
+static const value_string Link16_Terminal_Type[] = {
+    { 0, "None" },
+    { 1, "US Navy Air (JTIDS)" },
+    { 2, "US Navy Ship (JTIDS)" },
+    { 3, "US F-15 (JTIDS)" },
+    { 4, "US F/A-18 (MIDS)" },
+    { 5, "US Army Class 2M (JTIDS)" },
+    { 6, "US MCE (JTIDS)" },
+    { 7, "E-3 (JTIDS)" },
+    { 8, "UK Tornado F3 (JTIDS)" },
+    { 9, "UK UKADGE (JTIDS)" },
+    { 10, "Low Volume Terminal - Generic (MIDS)" },
+    { 11, "Low Volume Terminal - Platform Type A (MIDS)" },
+    { 12, "Low Volume Terminal - Platform Type B (MIDS)" },
+    { 13, "Low Volume Terminal - Platform Type C (MIDS)" },
+    { 14, "Low Volume Terminal - Platform Type D (MIDS)" },
+    { 15, "Low Volume Terminal - Platform Type E (MIDS)" },
+    { 16, "Low Volume Terminal - Platform Type F (MIDS)" },
+    { 17, "Low Volume Terminal - Platform Type G (MIDS)" },
+    { 18, "Low Volume Terminal 2, US Army (MIDS)" },
+    { 19, "Low Volume Terminal MIDS on Ship (MOS) (MIDS)" },
+    { 20, "US Fighter Data Link (FDL) (MIDS)" },
+    { 21, "AN/URC-138" },
+    { 22, "Low Volume Terminal Platform Type H (MIDS)" },
+    { 23, "Low Volume Terminal Platform Type I (MIDS)" },
+    { 0, NULL },
+};
+
+static const value_string Link16_Role[] = {
+    { 0, "None" },
+    { 1, "SIMPLE Host (SH)" },
+    { 2, "SIMPLE Terminal Emulator (STE)" },
+    { 3, "SIMPLE Network Monitor (SNM)" },
+    { 4, "SIMPLE Virtual Host (SVH)" },
+    { 5, "SIMPLE Virtual Terminal (SVT)" },
+    { 0, NULL },
+};
+
+static const value_string Link16_Sync_Status[] = {
+    { 0, "None" },
+    { 1, "Net Entry in Progress" },
+    { 2, "Coarse Sync" },
+    { 3, "Fine Sync" },
+    { 0, NULL },
+};
+
+static const value_string Link_Terminal_Host_Status[] = {
+    { 0, "Inactive" },
+    { 1, "Active" },
+    { 0, NULL },
+};
+
+static const value_string Link11_DTS_Type[] = {
+    { 0, "None" },
+    { 1, "MIL-STD-1397 parallel" },
+    { 2, "MIL-STD-188-203-1A serial" },
+    { 0, NULL },
+};
+
+static const value_string Link11_Role[] = {
+    { 0, "None"},
+    { 1, "SIMPLE DTS EMULATOR (SDE) Picket"},
+    { 2, "SDE Net Control Station (NCS)" },
+    { 3, "SIMPLE Participating Unit (PU) Emulator (SPE)" },
+    { 0, NULL },
+};
+
+static int proto_simple = -1;
+
+static dissector_handle_t simple_dissector_handle;
+static dissector_handle_t link16_handle;
+
+static gint hf_simple_sync_byte_1 = -1;
+static gint hf_simple_sync_byte_2 = -1;
+static gint hf_simple_length = -1;
+static gint hf_simple_sequence_number = -1;
+static gint hf_simple_src_node = -1;
+static gint hf_simple_src_subnode = -1;
+static gint hf_simple_dst_node = -1;
+static gint hf_simple_dst_subnode = -1;
+static gint hf_simple_packet_size = -1;
+static gint hf_simple_packet_type = -1;
+static gint hf_simple_transit_time = -1;
+static gint hf_simple_link16_subtype = -1;
+static gint hf_simple_link16_rc = -1;
+static gint hf_simple_link16_network = -1;
+static gint hf_simple_link16_ssc2 = -1;
+static gint hf_simple_link16_npg = -1;
+static gint hf_simple_link16_ssc1 = -1;
+static gint hf_simple_link16_stn = -1;
+static gint hf_simple_link16_word_count = -1;
+static gint hf_simple_link16_loopback_id = -1;
+static gint hf_simple_status_subtype = -1;
+static gint hf_simple_status_word_count = -1;
+static gint hf_simple_status_name = -1;
+static gint hf_simple_status_time_hours = -1;
+static gint hf_simple_status_node_id = -1;
+static gint hf_simple_status_time_seconds = -1;
+static gint hf_simple_status_time_minutes = -1;
+static gint hf_simple_status_security_level = -1;
+static gint hf_simple_status_node_entry_flag = -1;
+static gint hf_simple_status_relay_hop = -1;
+static gint hf_simple_status_dx_flag_system_messages = -1;
+static gint hf_simple_status_dx_flag_common_tims_bims = -1;
+static gint hf_simple_status_dx_flag_common_toms_boms = -1;
+static gint hf_simple_status_dx_flag_simple_receive = -1;
+static gint hf_simple_status_dx_flag_simple_transmit = -1;
+static gint hf_simple_status_dx_flag_all_tims_bims = -1;
+static gint hf_simple_status_dx_flag_all_toms_boms = -1;
+static gint hf_simple_status_dx_file_id = -1;
+static gint hf_simple_status_spare_1 = -1;
+static gint hf_simple_status_link16_terminal_type = -1;
+static gint hf_simple_status_link16_role = -1;
+static gint hf_simple_status_link16_sync_status = -1;
+static gint hf_simple_status_link16_terminal_host_status = -1;
+static gint hf_simple_status_link16_stn = -1;
+static gint hf_simple_status_spare_2 = -1;
+static gint hf_simple_status_link11_dts_type = -1;
+static gint hf_simple_status_link11_role = -1;
+static gint hf_simple_status_link11_pu = -1;
+static gint hf_simple_status_link11_dts_host_status = -1;
+static gint hf_simple_status_spare_3 = -1;
+static gint hf_simple_checksum = -1;
+static gint hf_simple_checksum_status = -1;
+
+static gint ett_simple = -1;
+static gint ett_packet = -1;
+static gint ett_simple_status_dx_flag = -1;
+
+static expert_field ei_simple_sync_bytes_bad = EI_INIT;
+static expert_field ei_simple_length_bad = EI_INIT;
+static expert_field ei_simple_packet_size_bad = EI_INIT;
+static expert_field ei_simple_checksum_bad = EI_INIT;
+
+static void dissect_simple_link16(tvbuff_t *tvb, packet_info *pinfo _U_, proto_tree *tree, gint offset)
+{
+    guint subtype, stn, word_count, i;
+    Link16State state;
+    tvbuff_t *newtvb;
+
+    proto_tree_add_item(tree, hf_simple_link16_subtype, tvb, offset, 1, ENC_NA);
+    subtype = tvb_get_guint8(tvb, offset);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_link16_rc, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_link16_network, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_link16_ssc2, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_link16_npg, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    offset += 2;
+
+    proto_tree_add_item(tree, hf_simple_link16_ssc1, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    offset += 2;
+
+    proto_tree_add_item(tree, hf_simple_link16_stn, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    stn = tvb_get_letohs(tvb, offset);
+    offset += 2;
+
+    proto_tree_add_item(tree, hf_simple_link16_word_count, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    word_count = tvb_get_guint8(tvb, offset);
+    offset += 2;
+
+    proto_tree_add_item(tree, hf_simple_link16_loopback_id, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    offset += 2;
+
+    col_append_fstr(pinfo->cinfo, COL_INFO, ", STN: %05o, Words:", stn);
+
+    switch(subtype) {
+    case SIMPLE_LINK16_FIXED_FORMAT:
+        memset(&state, 0, sizeof(state));
+        for (i = 0; i < word_count; i += 5) {
+            newtvb = tvb_new_subset_length_caplen(tvb, offset, 10, -1);
+            add_new_data_source(pinfo, newtvb, "Link 16 Word");
+            call_dissector_with_data(link16_handle, newtvb, pinfo, tree, &state);
+            offset += 10;
+        }
+        break;
+    }
+}
+
+static int * const simple_status_dx_flag_fields[] = {
+    &hf_simple_status_dx_flag_system_messages,
+    &hf_simple_status_dx_flag_common_tims_bims,
+    &hf_simple_status_dx_flag_common_toms_boms,
+    &hf_simple_status_dx_flag_simple_receive,
+    &hf_simple_status_dx_flag_simple_transmit,
+    &hf_simple_status_dx_flag_all_tims_bims,
+    &hf_simple_status_dx_flag_all_toms_boms,
+    NULL
+};
+
+#define SIMPLE_STATUS_NAME_LEN 10
+
+static void dissect_simple_status(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, gint offset)
+{
+    char *name;
+    int link16_status, pu;
+
+    proto_tree_add_item(tree, hf_simple_status_subtype, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_word_count, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    name = tvb_get_stringzpad(pinfo->pool, tvb, offset, SIMPLE_STATUS_NAME_LEN, ENC_ASCII|ENC_NA);
+    col_append_fstr(pinfo->cinfo, COL_INFO, ", Name: %s", name);
+    proto_tree_add_item(tree, hf_simple_status_name, tvb, offset, SIMPLE_STATUS_NAME_LEN, ENC_ASCII);
+    offset += SIMPLE_STATUS_NAME_LEN;
+
+    proto_tree_add_item(tree, hf_simple_status_time_hours, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_node_id, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_time_seconds, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_time_minutes, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_security_level, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_node_entry_flag, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_relay_hop, tvb, offset, 16, ENC_NA);
+    offset += 16;
+
+    proto_tree_add_bitmask_text(tree, tvb, offset, 2, "Data Extraction Flags", NULL, ett_simple_status_dx_flag, simple_status_dx_flag_fields, ENC_LITTLE_ENDIAN, 0);
+    offset += 2;
+
+    proto_tree_add_item(tree, hf_simple_status_dx_file_id, tvb, offset, 8, ENC_ASCII);
+    offset += 8;
+
+    proto_tree_add_item(tree, hf_simple_status_spare_1, tvb, offset, 2, ENC_NA);
+    offset += 2;
+
+    proto_tree_add_item(tree, hf_simple_status_link16_terminal_type, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_link16_role, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_link16_sync_status, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_link16_terminal_host_status, tvb, offset, 1, ENC_NA);
+    link16_status = tvb_get_guint8(tvb, offset);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_link16_stn, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    if (link16_status)
+        col_append_fstr(pinfo->cinfo, COL_INFO, ", STN: %05o", tvb_get_letohs(tvb, offset));
+    offset += 2;
+
+    proto_tree_add_item(tree, hf_simple_status_spare_2, tvb, offset, 2, ENC_NA);
+    offset += 2;
+
+    proto_tree_add_item(tree, hf_simple_status_link11_dts_type, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_link11_role, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_link11_pu, tvb, offset, 1, ENC_NA);
+    pu = tvb_get_guint8(tvb, offset);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_link11_dts_host_status, tvb, offset, 1, ENC_NA);
+    if (tvb_get_guint8(tvb, offset))
+        col_append_fstr(pinfo->cinfo, COL_INFO, ", PU: %03o", pu);
+    offset++;
+
+    proto_tree_add_item(tree, hf_simple_status_spare_3, tvb, offset, 4, ENC_NA);
+}
+
+static void dissect_checksum(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, gint offset)
+{
+    const guint8 * v = tvb_get_ptr(tvb, 0, offset);
+    guint16 expected_checksum = 0;
+    gint i;
+
+    for (i = 0; i < offset; i++)
+        expected_checksum += v[i];
+
+    proto_tree_add_checksum(tree, tvb, offset, hf_simple_checksum, hf_simple_checksum_status, &ei_simple_checksum_bad, pinfo, expected_checksum,
+                            ENC_LITTLE_ENDIAN, PROTO_CHECKSUM_VERIFY);
+}
+
+static int dissect_simple(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)
+{
+    proto_item *simple_item = NULL, *item;
+    proto_tree *simple_tree = NULL, *packet_tree = NULL;
+    guint offset = 0, length, packet_size, packet_type;
+    const gchar *packet_type_string;
+    guint8 sync_bytes_bad = 0;
+
+    col_set_str(pinfo->cinfo, COL_PROTOCOL, "SIMPLE");
+
+    if (tree) {
+        simple_item = proto_tree_add_item(tree, proto_simple, tvb, 0, -1, ENC_NA);
+        simple_tree = proto_item_add_subtree(simple_item, ett_simple);
+    }
+
+    proto_tree_add_item(simple_tree, hf_simple_sync_byte_1, tvb, offset, 1, ENC_NA);
+    sync_bytes_bad |= tvb_get_guint8(tvb, offset) ^ 0x49;
+    offset++;
+
+    proto_tree_add_item(simple_tree, hf_simple_sync_byte_2, tvb, offset, 1, ENC_NA);
+    sync_bytes_bad |= tvb_get_guint8(tvb, offset) ^ 0x36;
+    offset++;
+
+    if (sync_bytes_bad)
+        expert_add_info(pinfo, simple_item, &ei_simple_sync_bytes_bad);
+
+    item = proto_tree_add_item(simple_tree, hf_simple_length, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    length = tvb_get_letohs(tvb, offset);
+    offset += 2;
+
+    if (length < 16 || length >= 518 || length > tvb_reported_length(tvb))
+        expert_add_info(pinfo, item, &ei_simple_length_bad);
+
+    proto_tree_add_item(simple_tree, hf_simple_sequence_number, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    offset += 2;
+
+    proto_tree_add_item(simple_tree, hf_simple_src_node, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(simple_tree, hf_simple_src_subnode, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(simple_tree, hf_simple_dst_node, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    proto_tree_add_item(simple_tree, hf_simple_dst_subnode, tvb, offset, 1, ENC_NA);
+    offset++;
+
+    item = proto_tree_add_item(simple_tree, hf_simple_packet_size, tvb, offset, 1, ENC_NA);
+    packet_size = tvb_get_guint8(tvb, offset) * 2;
+    if (packet_size < 8 || packet_size - 8 > tvb_reported_length(tvb))
+        expert_add_info(pinfo, item, &ei_simple_packet_size_bad);
+    packet_size -= 8;
+    offset++;
+
+    proto_tree_add_item(simple_tree, hf_simple_packet_type, tvb, offset, 1, ENC_NA);
+    packet_type = tvb_get_guint8(tvb, offset);
+    offset++;
+
+    proto_tree_add_item(simple_tree, hf_simple_transit_time, tvb, offset, 2, ENC_LITTLE_ENDIAN);
+    offset += 2;
+
+    packet_type_string = val_to_str_const(packet_type, PacketType_Strings, "Unknown");
+    col_add_fstr(pinfo->cinfo, COL_INFO, "%s", packet_type_string);
+    packet_tree = proto_tree_add_subtree_format(simple_tree, tvb, offset, packet_size, ett_packet, NULL, "%s Packet", packet_type_string);
+
+    switch(packet_type) {
+    case SIMPLE_LINK16:
+        dissect_simple_link16(tvb, pinfo, packet_tree, offset);
+        break;
+    case SIMPLE_STATUS:
+        dissect_simple_status(tvb, pinfo, packet_tree, offset);
+        break;
+    }
+
+    dissect_checksum(tvb, pinfo, simple_tree, length - 2);
+
+    return tvb_captured_length(tvb);
+}
+
+void proto_register_simple(void)
+{
+    static hf_register_info hf[] = {
+        { &hf_simple_sync_byte_1,
+          { "Sync Byte 1", "simple.sync_byte_1", FT_UINT8, BASE_HEX, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_sync_byte_2,
+          { "Sync Byte 2", "simple.sync_byte_2", FT_UINT8, BASE_HEX, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_length,
+          { "Length", "simple.length", FT_UINT16, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_sequence_number,
+          { "Sequence Number", "simple.sequence_number", FT_UINT16, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_src_node,
+          { "Source Node", "simple.src_node", FT_UINT8, BASE_RANGE_STRING | BASE_DEC, RVALS(Node_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_src_subnode,
+          { "Source Subnode", "simple.src_subnode", FT_UINT8, BASE_DEC, VALS(Subnode_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_dst_node,
+          { "Destination Node", "simple.dst_node", FT_UINT8, BASE_RANGE_STRING | BASE_DEC, RVALS(Node_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_dst_subnode,
+          { "Destination Subnode", "simple.dst_subnode", FT_UINT8, BASE_DEC, VALS(Subnode_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_packet_size,
+          { "Packet Size", "simple.packet_size", FT_UINT8, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_packet_type,
+          { "Packet Type", "simple.packet_type", FT_UINT8, BASE_DEC, VALS(PacketType_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_transit_time,
+          { "Transit Time", "simple.transit_time", FT_UINT16, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_subtype,
+          { "Subtype", "simple.link16.subtype", FT_UINT8, BASE_DEC, VALS(Link16_Subtype_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_rc,
+          { "R/C Flag", "simple.link16.rc", FT_BOOLEAN, BASE_DEC, TFS(&tfs_required_not_required), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_network,
+          { "Network", "simple.link16.network", FT_UINT8, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_ssc2,
+          { "Sequential Slot Count 2", "simple.link16.ssc2", FT_UINT8, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_npg,
+          { "NPG Number", "simple.link16.npg", FT_UINT16, BASE_DEC, VALS(Link16_NPG_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_ssc1,
+          { "Sequential Slot Count 1", "simple.link16.ssc1", FT_UINT16, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_stn,
+          { "Source Track Number", "simple.link16.stn", FT_UINT16, BASE_OCT, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_word_count,
+          { "Word Count", "simple.link16.word_count", FT_UINT16, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_link16_loopback_id,
+          { "Loopback ID", "simple.link16.loopback_id", FT_UINT16, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_subtype,
+          { "Subtype", "simple.status.subtype", FT_UINT8, BASE_HEX, VALS(Status_Subtype_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_word_count,
+          { "Word Count", "simple.status.word_count", FT_UINT8, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_name,
+          { "Name", "simple.status.name", FT_STRING, BASE_NONE, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_time_hours,
+          { "Time (Hours)", "simple.status.time_hours", FT_UINT8, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_node_id,
+          { "Node Id", "simple.status.node_id", FT_UINT8, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_time_seconds,
+          { "Time (Seconds)", "simple.status.time_seconds", FT_UINT8, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_time_minutes,
+          { "Time (Minutes)", "simple.status.time_minutes", FT_UINT8, BASE_DEC, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_security_level,
+          { "Security Level", "simple.status.security_level", FT_UINT8, BASE_DEC, VALS(Security_Level_Strings), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_node_entry_flag,
+          { "Node Entry Flag", "simple.status.node_entry_flag", FT_BOOLEAN, BASE_NONE, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_relay_hop,
+          { "Relay Hop", "simple.status.relay_hop", FT_BYTES, BASE_NONE, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_dx_flag_system_messages,
+          { "DX System Messages", "simple.status.dx_flag.system_messages", FT_BOOLEAN, 16, NULL, 0x0001,
+            NULL, HFILL }},
+        { &hf_simple_status_dx_flag_common_tims_bims,
+          { "DX Common TIMS/BIMS", "simple.status.dx_flag.common_tims_bims", FT_BOOLEAN, 16, NULL, 0x0002,
+            NULL, HFILL }},
+        { &hf_simple_status_dx_flag_common_toms_boms,
+          { "DX Common TOMS/BOMS", "simple.status.dx_flag.common_toms_boms", FT_BOOLEAN, 16, NULL, 0x0004,
+            NULL, HFILL }},
+        { &hf_simple_status_dx_flag_simple_receive,
+          { "DX SIMPLE Receive", "simple.status.dx_flag.simple_receive", FT_BOOLEAN, 16, NULL, 0x8,
+            NULL, HFILL }},
+        { &hf_simple_status_dx_flag_simple_transmit,
+          { "DX SIMPLE Transmit", "simple.status.dx_flag.simple_transmit", FT_BOOLEAN, 16, NULL, 0x0010,
+            NULL, HFILL }},
+        { &hf_simple_status_dx_flag_all_tims_bims,
+          { "DX All TIMS/BIMS", "simple.status.dx_flag.all_tims_bims", FT_BOOLEAN, 16, NULL, 0x0020,
+            NULL, HFILL }},
+        { &hf_simple_status_dx_flag_all_toms_boms,
+          { "DX All TOMS/BOMS", "simple.status.dx_flag.all_toms_boms", FT_BOOLEAN, 16, NULL, 0x0040,
+            NULL, HFILL }},
+        { &hf_simple_status_dx_file_id,
+          { "DX File Id", "simple.status.dx_file_id", FT_STRING, BASE_NONE, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_spare_1,
+          { "Spare1", "simple.status.spare_1", FT_BYTES, BASE_NONE, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link16_terminal_type,
+          { "Link 16 Type", "simple.status.link16.terminal_type", FT_UINT8, BASE_DEC, VALS(Link16_Terminal_Type), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link16_role,
+          { "Link 16 Role", "simple.status.link16.role", FT_UINT8, BASE_DEC, VALS(Link16_Role), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link16_sync_status,
+          { "Link 16 Sync Status", "simple.status.link16.sync_status", FT_UINT8, BASE_DEC, VALS(Link16_Sync_Status), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link16_terminal_host_status,
+          { "Link 16 Terminal/Host Status", "simple.status.link16.terminal_host_status", FT_UINT8, BASE_DEC, VALS(Link_Terminal_Host_Status), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link16_stn,
+          { "Link 16 STN", "simple.status.link16.stn", FT_UINT16, BASE_OCT, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_spare_2,
+          { "Spare2", "simple.status.spare_2", FT_BYTES, BASE_NONE, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link11_dts_type,
+          { "Link 11 DTS Type", "simple.status.link11.dts_type", FT_UINT8, BASE_DEC, VALS(Link11_DTS_Type), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link11_role,
+          { "Link 11 Role", "simple.status.link11.role", FT_UINT8, BASE_DEC, VALS(Link11_Role), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link11_pu,
+          { "Link 11 PU", "simple.status.link11.pu", FT_UINT8, BASE_OCT, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_link11_dts_host_status,
+          { "Link 11 DTS/Host Status", "simple.status.link11.dts_host_status", FT_UINT8, BASE_DEC, VALS(Link_Terminal_Host_Status), 0x0,
+            NULL, HFILL }},
+        { &hf_simple_status_spare_3,
+          { "Spare3", "simple.status.spare_3", FT_BYTES, BASE_NONE, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_checksum,
+          { "Checksum", "simple.checksum", FT_UINT16, BASE_HEX, NULL, 0x0,
+            NULL, HFILL }},
+        { &hf_simple_checksum_status,
+          { "Checksum Status", "simple.checksum.status", FT_UINT8, BASE_NONE, VALS(proto_checksum_vals), 0x0,
+            NULL, HFILL }}
+    };
+    static gint *ett[] = {
+        &ett_simple,
+        &ett_packet,
+        &ett_simple_status_dx_flag,
+    };
+    static ei_register_info ei[] = {
+        { &ei_simple_sync_bytes_bad, { "simple.sync_bytes.bad", PI_MALFORMED, PI_ERROR, "Bad sync bytes", EXPFILL }},
+        { &ei_simple_length_bad, { "simple.length.bad", PI_MALFORMED, PI_ERROR, "Bad length", EXPFILL }},
+        { &ei_simple_packet_size_bad, { "simple.packet_size.bad", PI_MALFORMED, PI_ERROR, "Bad packet length", EXPFILL }},
+        { &ei_simple_checksum_bad, { "simple.checksum.bad.expert", PI_CHECKSUM, PI_ERROR, "Bad checksum", EXPFILL }},
+    };
+    expert_module_t* expert_simple;
+
+    proto_simple = proto_register_protocol("Standard Interface for Multiple Platform Link Evaluation", "SIMPLE", "simple");
+    proto_register_field_array(proto_simple, hf, array_length(hf));
+    proto_register_subtree_array(ett, array_length(ett));
+    expert_simple = expert_register_protocol(proto_simple);
+    expert_register_field_array(expert_simple, ei, array_length(ei));
+    simple_dissector_handle = register_dissector("simple", dissect_simple, proto_simple);
+}
+
+void proto_reg_handoff_simple(void)
+{
+    dissector_add_for_decode_as_with_preference("udp.port", simple_dissector_handle);
+    dissector_add_for_decode_as_with_preference("tcp.port", simple_dissector_handle);
+
+    link16_handle = find_dissector_add_dependency("link16", proto_simple);
+}
+
+/*
+ * Editor modelines  -  https://www.wireshark.org/tools/modelines.html
+ *
+ * Local variables:
+ * c-basic-offset: 4
+ * tab-width: 8
+ * indent-tabs-mode: nil
+ * End:
+ *
+ * vi: set shiftwidth=4 tabstop=8 expandtab:
+ * :indentSize=4:tabSize=8:noTabs=true:
+ */