/* packet-btbnep.c

 * Routines for Bluetooth BNEP dissection

 *

 * Copyright 2012, Michal Labedzki for Tieto Corporation

 *

 * Wireshark - Network traffic analyzer

 * By Gerald Combs <gerald@wireshark.org>

 * Copyright 1998 Gerald Combs

 *

 * SPDX-License-Identifier: GPL-2.0-or-later

 */

#include "config.h"

#include <epan/packet.h>

#include <epan/prefs.h>

#include <epan/etypes.h>

#include <epan/expert.h>

#include "packet-bluetooth.h"

#include "packet-btl2cap.h"

#include "packet-btsdp.h"

#define BNEP_TYPE_GENERAL_ETHERNET                                          0x00

#define BNEP_TYPE_CONTROL                                                   0x01

#define BNEP_TYPE_COMPRESSED_ETHERNET                                       0x02

#define BNEP_TYPE_COMPRESSED_ETHERNET_SOURCE_ONLY                           0x03

#define BNEP_TYPE_COMPRESSED_ETHERNET_DESTINATION_ONLY                      0x04

#define RESERVED_802                                                        0x7F

static int proto_btbnep;

static int hf_btbnep_bnep_type;

static int hf_btbnep_extension_flag;

static int hf_btbnep_extension_type;

static int hf_btbnep_extension_length;

static int hf_btbnep_dst;

static int hf_btbnep_src;

static int hf_btbnep_len;

static int hf_btbnep_invalid_lentype;

static int hf_btbnep_type;

static int hf_btbnep_addr;

static int hf_btbnep_lg;

static int hf_btbnep_ig;

static int hf_btbnep_control_type;

static int hf_btbnep_unknown_control_type;

static int hf_btbnep_uuid_size;

static int hf_btbnep_destination_service_uuid;

static int hf_btbnep_source_service_uuid;

static int hf_btbnep_setup_connection_response_message;

static int hf_btbnep_filter_net_type_response_message;

static int hf_btbnep_filter_multi_addr_response_message;

static int hf_btbnep_list_length;

static int hf_btbnep_network_type_start;

static int hf_btbnep_network_type_end;

static int hf_btbnep_multicast_address_start;

static int hf_btbnep_multicast_address_end;

static int ett_btbnep;

static int ett_addr;

static expert_field ei_btbnep_src_not_group_address;

static expert_field ei_btbnep_invalid_lentype;

static expert_field ei_btbnep_len_past_end;

static dissector_handle_t btbnep_handle;

static bool top_dissect                                              = true;

static dissector_handle_t llc_handle;

static dissector_handle_t ipx_handle;

static dissector_handle_t ethertype_handle;

static const true_false_string ig_tfs = {

    "Group address (multicast/broadcast)",

    "Individual address (unicast)"

};

static const true_false_string lg_tfs = {

    "Locally administered address (this is NOT the factory default)",

    "Globally unique address (factory default)"

};

static const value_string bnep_type_vals[] = {

    { 0x00,   "General Ethernet" },

    { 0x01,   "Control" },

    { 0x02,   "Compressed Ethernet" },

    { 0x03,   "Compressed Ethernet Source Only" },

    { 0x04,   "Compressed Ethernet Destination Only" },

    { 0x7F,   "Reserved for 802.2 LLC Packets for IEEE 802.15.1 WG" },

    { 0, NULL }

};

static const value_string control_type_vals[] = {

    { 0x00,   "Command Not Understood" },

    { 0x01,   "Setup Connection Request" },

    { 0x02,   "Setup Connection Response" },

    { 0x03,   "Filter Net Type Set" },

    { 0x04,   "Filter Net Type Response" },

    { 0x05,   "Filter Multi Addr Set" },

    { 0x06,   "Filter Multi Addr Response" },

    { 0, NULL }

};

static const value_string extension_type_vals[] = {

    { 0x00,   "Extension Control" },

    { 0, NULL }

};

static const value_string setup_connection_response_message_vals[] = {

    { 0x0000,   "Operation Successful" },

    { 0x0001,   "Operation FAIL: Invalid Destination Service UUID" },

    { 0x0002,   "Operation FAIL: Invalid Source Service UUID" },

    { 0x0003,   "Operation FAIL: Invalid Service UUID Size" },

    { 0x0004,   "Operation FAIL: Connection Not Allowed" },

    { 0, NULL }

};

static const value_string filter_net_type_response_message_vals[] = {

    { 0x0000,   "Operation Successful" },

    { 0x0001,   "Unsupported Request" },

    { 0x0002,   "Operation FAIL: Invalid Networking Protocol Type Range" },

    { 0x0003,   "Operation FAIL: Too many filters" },

    { 0x0004,   "Operation FAIL: Unable to fulfill request due to security reasons" },

    { 0, NULL }

};

static const value_string filter_multi_addr_response_message_vals[] = {

    { 0x0000,   "Operation Successful" },

    { 0x0001,   "Unsupported Request" },

    { 0x0002,   "Operation FAIL: Invalid Multicast Address" },

    { 0x0003,   "Operation FAIL: Too many filters" },

    { 0x0004,   "Operation FAIL: Unable to fulfill request due to security reasons" },

    { 0, NULL }

};

void proto_register_btbnep(void);

void proto_reg_handoff_btbnep(void);

static int

dissect_control(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)

{

    proto_item  *pitem = NULL;

    unsigned     control_type;

    uint8_t      unknown_control_type;

    uint8_t      uuid_size;

    uint16_t     uuid_dst;

    uint16_t     uuid_src;

    uint16_t     response_message;

    uint16_t     list_length;

    unsigned     i_item;

    proto_tree_add_item(tree, hf_btbnep_control_type, tvb, offset, 1, ENC_BIG_ENDIAN);

    control_type = tvb_get_uint8(tvb, offset);

    offset += 1;

    col_append_fstr(pinfo->cinfo, COL_INFO, " - %s", val_to_str_const(control_type, control_type_vals,  "Unknown type"));

    switch(control_type) {

        case 0x00: /* Command Not Understood */

            proto_tree_add_item(tree, hf_btbnep_unknown_control_type, tvb, offset, 1, ENC_BIG_ENDIAN);

            unknown_control_type = tvb_get_uint8(tvb, offset);

            offset += 1;

            col_append_fstr(pinfo->cinfo, COL_INFO, " - Unknown(%s)", val_to_str_const(unknown_control_type, control_type_vals,  "Unknown type"));

            break;

        case 0x01: /* Setup Connection Request */

            proto_tree_add_item(tree, hf_btbnep_uuid_size, tvb, offset, 1, ENC_BIG_ENDIAN);

            uuid_size = tvb_get_uint8(tvb, offset);

            offset += 1;

            pitem = proto_tree_add_item(tree, hf_btbnep_destination_service_uuid, tvb, offset, uuid_size, ENC_NA);

            uuid_dst = tvb_get_ntohs(tvb, offset);

            proto_item_append_text(pitem, " (%s)", val_to_str_ext_const(uuid_dst, &bluetooth_uuid_vals_ext,  "Unknown uuid"));

            offset += uuid_size;

            pitem = proto_tree_add_item(tree, hf_btbnep_source_service_uuid, tvb, offset, uuid_size, ENC_NA);

            uuid_src = tvb_get_ntohs(tvb, offset);

            proto_item_append_text(pitem, " (%s)", val_to_str_ext_const(uuid_src, &bluetooth_uuid_vals_ext,  "Unknown uuid"));

            offset += uuid_size;

            col_append_fstr(pinfo->cinfo, COL_INFO, " - dst: <%s>, src: <%s>",

                    val_to_str_ext_const(uuid_dst, &bluetooth_uuid_vals_ext,  "Unknown uuid"),

                    val_to_str_ext_const(uuid_src, &bluetooth_uuid_vals_ext,  "Unknown uuid"));

            break;

        case 0x02: /* Setup Connection Response */

            proto_tree_add_item(tree, hf_btbnep_setup_connection_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);

            response_message = tvb_get_ntohs(tvb, offset);

            offset += 2;

            col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",

                    val_to_str_const(response_message, setup_connection_response_message_vals,  "Unknown response message"));

            break;

        case 0x03: /* Filter Net Type Set */

            proto_tree_add_item(tree, hf_btbnep_list_length, tvb, offset, 2, ENC_BIG_ENDIAN);

            list_length = tvb_get_ntohs(tvb, offset);

            offset += 2;

            for (i_item = 0; i_item + 4 > i_item && i_item < list_length; i_item += 4) {

                proto_tree_add_item(tree, hf_btbnep_network_type_start, tvb, offset, 2, ENC_BIG_ENDIAN);

                offset += 2;

                proto_tree_add_item(tree, hf_btbnep_network_type_end, tvb, offset, 2, ENC_BIG_ENDIAN);

                offset += 2;

            }

            break;

        case 0x04: /* Filter Net Type Response */

            proto_tree_add_item(tree, hf_btbnep_filter_net_type_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);

            response_message = tvb_get_ntohs(tvb, offset);

            offset += 2;

            col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",

                    val_to_str_const(response_message, filter_net_type_response_message_vals,  "Unknown response message"));

            break;

        case 0x05: /*Filter Multi Addr Set*/

            proto_tree_add_item(tree, hf_btbnep_list_length, tvb, offset, 2, ENC_BIG_ENDIAN);

            list_length = tvb_get_ntohs(tvb, offset);

            offset += 2;

            for (i_item = 0; i_item + 12 > i_item && i_item < list_length; i_item += 12) {

                proto_tree_add_item(tree, hf_btbnep_multicast_address_start, tvb, offset, FT_ETHER_LEN, ENC_NA);

                offset += FT_ETHER_LEN;

                proto_tree_add_item(tree, hf_btbnep_multicast_address_end, tvb, offset, FT_ETHER_LEN, ENC_NA);

                offset += FT_ETHER_LEN;

            }

            break;

        case 0x06: /* Filter Multi Addr Response */

            proto_tree_add_item(tree, hf_btbnep_filter_multi_addr_response_message, tvb, offset, 2, ENC_BIG_ENDIAN);

            response_message = tvb_get_ntohs(tvb, offset);

            offset += 2;

            col_append_fstr(pinfo->cinfo, COL_INFO, " - %s",

                    val_to_str_const(response_message, filter_multi_addr_response_message_vals,  "Unknown response message"));

            break;

    };

    return offset;

}

static int

// NOLINTNEXTLINE(misc-no-recursion)

dissect_extension(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, int offset)

{

    uint8_t extension_flag;

    uint8_t extension_type;

    uint16_t extension_length;

    uint8_t type;

    proto_tree_add_item(tree, hf_btbnep_extension_type, tvb, offset, 1, ENC_BIG_ENDIAN);

    proto_tree_add_item(tree, hf_btbnep_extension_flag, tvb, offset, 1, ENC_BIG_ENDIAN);

    type = tvb_get_uint8(tvb, offset);

    extension_flag = type & 0x01;

    extension_type = type >> 1;

    offset += 1;

    proto_tree_add_item(tree, hf_btbnep_extension_length, tvb, offset, 1, ENC_BIG_ENDIAN);

    extension_length = tvb_get_ntohs(tvb, offset);

    offset += 2;

    if (extension_type == 0x00) {

        /* Extension Control */

        offset = dissect_control(tvb, pinfo, tree, offset);

    } else {

        offset += extension_length;

    }

    increment_dissection_depth(pinfo);

    if (extension_flag) offset = dissect_extension(tvb, pinfo, tree, offset);

    decrement_dissection_depth(pinfo);

    return offset;

}

static int

dissect_btbnep(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree, void *data _U_)

{

    proto_item   *pi;

    proto_tree   *btbnep_tree;

    int           offset = 0;

    unsigned      bnep_type;

    unsigned      extension_flag;

    unsigned      len_type = 0;

    proto_item   *addr_item;

    proto_tree   *addr_tree = NULL;

    proto_item   *length_ti = NULL;

    pi = proto_tree_add_item(tree, proto_btbnep, tvb, offset, -1, ENC_NA);

    btbnep_tree = proto_item_add_subtree(pi, ett_btbnep);

    col_set_str(pinfo->cinfo, COL_PROTOCOL, "BNEP");

    col_clear(pinfo->cinfo, COL_INFO);

    switch (pinfo->p2p_dir) {

        case P2P_DIR_SENT:

            col_set_str(pinfo->cinfo, COL_INFO, "Sent ");

            break;

        case P2P_DIR_RECV:

            col_set_str(pinfo->cinfo, COL_INFO, "Rcvd ");

            break;

        default:

            col_set_str(pinfo->cinfo, COL_INFO, "UnknownDirection ");

            break;

    }

    proto_tree_add_item(btbnep_tree, hf_btbnep_extension_flag, tvb, offset, 1, ENC_BIG_ENDIAN);

    proto_tree_add_item(btbnep_tree, hf_btbnep_bnep_type, tvb, offset, 1, ENC_BIG_ENDIAN);

    bnep_type = tvb_get_uint8(tvb, offset);

    extension_flag = bnep_type & 0x80;

    bnep_type = bnep_type & 0x7F;

    offset += 1;

    col_append_str(pinfo->cinfo, COL_INFO, val_to_str_const(bnep_type, bnep_type_vals,  "Unknown type"));

    if (extension_flag) col_append_str(pinfo->cinfo, COL_INFO, "+E");

    if (bnep_type == BNEP_TYPE_GENERAL_ETHERNET || bnep_type == BNEP_TYPE_COMPRESSED_ETHERNET_DESTINATION_ONLY) {

        set_address_tvb(&pinfo->dl_dst, AT_ETHER, 6, tvb, offset);

        copy_address_shallow(&pinfo->dst, &pinfo->dl_dst);

        addr_item = proto_tree_add_item(btbnep_tree, hf_btbnep_dst, tvb, offset, FT_ETHER_LEN, ENC_NA);

        addr_tree = proto_item_add_subtree(addr_item, ett_addr);

        proto_tree_add_item(addr_tree, hf_btbnep_addr, tvb, offset, FT_ETHER_LEN, ENC_NA);

        proto_tree_add_item(addr_tree, hf_btbnep_lg, tvb, offset, 3, ENC_BIG_ENDIAN);

        proto_tree_add_item(addr_tree, hf_btbnep_ig, tvb, offset, 3, ENC_BIG_ENDIAN);

        offset += FT_ETHER_LEN;

    }

    if (bnep_type == BNEP_TYPE_GENERAL_ETHERNET || bnep_type == BNEP_TYPE_COMPRESSED_ETHERNET_SOURCE_ONLY) {

        set_address_tvb(&pinfo->dl_src, AT_ETHER, 6, tvb, offset);

        copy_address_shallow(&pinfo->src, &pinfo->dl_src);

        addr_item = proto_tree_add_item(btbnep_tree, hf_btbnep_src, tvb, offset, FT_ETHER_LEN, ENC_NA);

        addr_tree = proto_item_add_subtree(addr_item, ett_addr);

        if (tvb_get_uint8(tvb, offset) & 0x01) {

            expert_add_info(pinfo, addr_item, &ei_btbnep_src_not_group_address);

        }

        proto_tree_add_item(addr_tree, hf_btbnep_addr, tvb, offset, FT_ETHER_LEN, ENC_NA);

        proto_tree_add_item(addr_tree, hf_btbnep_lg, tvb, offset, 3, ENC_BIG_ENDIAN);

        proto_tree_add_item(addr_tree, hf_btbnep_ig, tvb, offset, 3, ENC_BIG_ENDIAN);

        offset += FT_ETHER_LEN;

    }

    if (bnep_type != BNEP_TYPE_CONTROL) {

        len_type = tvb_get_ntohs(tvb, offset);

        if (len_type <= IEEE_802_3_MAX_LEN) {

            /*

             * The BNEP Version 1.0 spec says, for BNEP_GENERAL_ETHERNET

             * packets, "Note: Networking Protocol Types as used in this

             * specification SHALL be taken to include values in the range

             * 0x0000-0x05dc, used to represent the IEEE802.3 length

             * interpretation of the IEEE802.3 length/type field.",

             * although it says that it's not mandatory to process

             * those packets.

             */

            length_ti = proto_tree_add_item(btbnep_tree, hf_btbnep_len, tvb, offset, 2, ENC_BIG_ENDIAN);

        } else if (len_type < ETHERNET_II_MIN_LEN) {

            /*

             * Not a valid Ethernet length, not a valid Ethernet type.

             */

            proto_item *ti;

            ti = proto_tree_add_item(btbnep_tree, hf_btbnep_invalid_lentype, tvb, offset, 2, ENC_BIG_ENDIAN);

            expert_add_info_format(pinfo, ti, &ei_btbnep_invalid_lentype,

                                   "Invalid length/type: 0x%04x (%u)",

                                   len_type, len_type);

        } else {

            /*

             * Ethernet type.

             */

            if (!top_dissect)

                proto_tree_add_item(btbnep_tree, hf_btbnep_type, tvb, offset, 2, ENC_BIG_ENDIAN);

            col_append_fstr(pinfo->cinfo, COL_INFO, " - Type: %s", val_to_str_const(len_type, etype_vals, "unknown"));

        }

        offset += 2;

    } else {

        offset = dissect_control(tvb, pinfo, btbnep_tree, offset);

    }

    if (extension_flag) {

        offset = dissect_extension(tvb, pinfo, btbnep_tree, offset);

    }

    if (bnep_type != BNEP_TYPE_CONTROL) {

        /* dissect normal network */

        if (top_dissect) {

            if (len_type <= IEEE_802_3_MAX_LEN) {

                bool is_802_2;

                int reported_length;

                tvbuff_t  *next_tvb;

                /*

                 * The BNEP Version 1.0 spec says, for BNEP_GENERAL_ETHERNET

                 * packets, "Note: Networking Protocol Types as used in this

                 * specification SHALL be taken to include values in the range

                 * 0x0000-0x05dc, used to represent the IEEE802.3 length

                 * interpretation of the IEEE802.3 length/type field.",

                 * although it says that it's not mandatory to process

                 * those packets.

                 */

                /*

                 * Is there an 802.2 layer? I can tell by looking at the

                 * first 2 bytes of the payload. If they are 0xffff, then

                 * the payload is IPX.

                 *

                 * (Probably won't happen, but we might as well do this

                 * anyway.)

                 */

                is_802_2 = true;

                /* Don't throw an exception for this check (even a BoundsError) */

                if (tvb_bytes_exist(tvb, offset, 2)) {

                    if (tvb_get_ntohs(tvb, offset) == 0xffff) {

                        is_802_2 = false;

                    }

                }

                reported_length = tvb_reported_length_remaining(tvb, offset);

                /*

                 * Make sure the length doesn't go past the end of the

                 * payload.

                 */

                if (reported_length >= 0 && len_type > (unsigned)reported_length) {

                    len_type = reported_length;

                    expert_add_info(pinfo, length_ti, &ei_btbnep_len_past_end);

                }

                /* Give the next dissector only 'len_type' number of bytes. */

                next_tvb = tvb_new_subset_length(tvb, offset, len_type);

                if (is_802_2) {

                    call_dissector(llc_handle, next_tvb, pinfo, tree);

                } else {

                    call_dissector(ipx_handle, next_tvb, pinfo, tree);

                }

            } else if (len_type < ETHERNET_II_MIN_LEN) {

                /*

                 * Not a valid packet.

                 */

                tvbuff_t  *next_tvb;

                next_tvb = tvb_new_subset_remaining(tvb, offset);

                call_data_dissector(next_tvb, pinfo, tree);

            } else {

                /*

                 * Valid Ethertype.

                 */

                ethertype_data_t ethertype_data;

                proto_tree_add_uint(btbnep_tree, hf_btbnep_type, tvb,

                                    offset - 2, 2, len_type);

                ethertype_data.etype = len_type;

                ethertype_data.payload_offset = offset;

                ethertype_data.fh_tree = btbnep_tree;

                ethertype_data.trailer_id = 0;

                ethertype_data.fcs_len = 0;

                call_dissector_with_data(ethertype_handle, tvb, pinfo, tree, &ethertype_data);

            }

        } else {

            tvbuff_t  *next_tvb;

            next_tvb = tvb_new_subset_remaining(tvb, offset);

            call_data_dissector(next_tvb, pinfo, tree);

        }

    }

    return offset;

}

void

proto_register_btbnep(void)

{

    module_t *module;

    expert_module_t* expert_btbnep;

    static hf_register_info hf[] = {

        { &hf_btbnep_bnep_type,

            { "BNEP Type",                         "btbnep.bnep_type",

            FT_UINT8, BASE_HEX, VALS(bnep_type_vals), 0x7F,

            NULL, HFILL }

        },

        { &hf_btbnep_extension_flag,

            { "Extension Flag",                    "btbnep.extension_flag",

            FT_BOOLEAN, 8, NULL, 0x80,

            NULL, HFILL }

        },

        { &hf_btbnep_control_type,

            { "Control Type",                      "btbnep.control_type",

            FT_UINT8, BASE_HEX, VALS(control_type_vals), 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_extension_type,

            { "Extension Type",                    "btbnep.extension_type",

            FT_UINT8, BASE_HEX, VALS(extension_type_vals), 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_extension_length,

            { "Extension Length",                  "btbnep.extension_length",

            FT_UINT16, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_unknown_control_type,

            { "Unknown Control Type",              "btbnep.unknown_control_type",

            FT_UINT8, BASE_HEX, VALS(control_type_vals), 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_uuid_size,

            { "UIDD Size",                         "btbnep.uuid_size",

            FT_UINT8, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_destination_service_uuid,

            { "Destination Service UUID",          "btbnep.destination_service_uuid",

            FT_NONE, BASE_NONE, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_source_service_uuid,

            { "Source Service UUID",               "btbnep.source_service_uuid",

            FT_NONE, BASE_NONE, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_setup_connection_response_message,

            { "Response Message",                  "btbnep.setup_connection_response_message",

            FT_UINT16, BASE_HEX, VALS(setup_connection_response_message_vals), 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_filter_net_type_response_message,

            { "Response Message",                  "btbnep.filter_net_type_response_message",

            FT_UINT16, BASE_HEX, VALS(filter_net_type_response_message_vals), 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_filter_multi_addr_response_message,

            { "Response Message",                  "btbnep.filter_multi_addr_response_message",

            FT_UINT16, BASE_HEX, VALS(filter_multi_addr_response_message_vals), 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_list_length,

            { "List Length",                       "btbnep.list_length",

            FT_UINT16, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        /* http://www.iana.org/assignments/ethernet-numbers */

        { &hf_btbnep_network_type_start,

            { "Network Protocol Type Range Start", "btbnep.network_type_start",

            FT_UINT16, BASE_HEX, VALS(etype_vals), 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_network_type_end,

            { "Network Protocol Type Range End",   "btbnep.network_type_end",

            FT_UINT16, BASE_HEX, VALS(etype_vals), 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_multicast_address_start,

            { "Multicast Address Start",           "btbnep.multicast_address_start",

            FT_ETHER, BASE_NONE, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_multicast_address_end,

            { "Multicast Address End",             "btbnep.multicast_address_end",

            FT_ETHER, BASE_NONE, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_btbnep_dst,

            { "Destination",                       "btbnep.dst",

            FT_ETHER, BASE_NONE, NULL, 0x0,

            "Destination Hardware Address", HFILL }

        },

        { &hf_btbnep_src,

            { "Source",                            "btbnep.src",

            FT_ETHER, BASE_NONE, NULL, 0x0,

            "Source Hardware Address", HFILL }

        },

        { &hf_btbnep_len,

            { "Length",                            "btbnep.len",

            FT_UINT16, BASE_DEC, NULL, 0x0,

            NULL, HFILL }

        },

        { &hf_btbnep_invalid_lentype,

            { "Invalid length/type",               "btbnep.invalid_lentype",

            FT_UINT16, BASE_HEX_DEC, NULL, 0x0,

            NULL, HFILL }

        },

        { &hf_btbnep_type,

            { "Type",                              "btbnep.type",

            FT_UINT16, BASE_HEX, VALS(etype_vals), 0x0,

            NULL, HFILL }

        },

        { &hf_btbnep_addr,

            { "Address",                           "btbnep.addr",

            FT_ETHER, BASE_NONE, NULL, 0x0,

            "Source or Destination Hardware Address", HFILL }

        },

        { &hf_btbnep_lg,

            { "LG bit",                            "btbnep.lg",

            FT_BOOLEAN, 24, TFS(&lg_tfs), 0x020000,

            "Specifies if this is a locally administered or globally unique (IEEE assigned) address", HFILL }

        },

        { &hf_btbnep_ig,

            { "IG bit",                            "btbnep.ig",

            FT_BOOLEAN, 24, TFS(&ig_tfs), 0x010000,

            "Specifies if this is an individual (unicast) or group (broadcast/multicast) address", HFILL }

        }

    };

    static int *ett[] = {

        &ett_btbnep,

        &ett_addr

    };

    static ei_register_info ei[] = {

        { &ei_btbnep_src_not_group_address, { "btbnep.src.not_group_address", PI_PROTOCOL, PI_WARN, "Source MAC must not be a group address: IEEE 802.3-2002, Section 3.2.3(b)", EXPFILL }},

        { &ei_btbnep_invalid_lentype, { "btbnep.invalid_lentype.expert", PI_PROTOCOL, PI_WARN, "Invalid length/type", EXPFILL }},

        { &ei_btbnep_len_past_end, { "btbnep.len.past_end", PI_MALFORMED, PI_ERROR, "Length field value goes past the end of the payload", EXPFILL }},

    };

    proto_btbnep = proto_register_protocol("Bluetooth BNEP Protocol", "BT BNEP", "btbnep");

    btbnep_handle = register_dissector("btbnep", dissect_btbnep, proto_btbnep);

    proto_register_field_array(proto_btbnep, hf, array_length(hf));

    proto_register_subtree_array(ett, array_length(ett));

    expert_btbnep = expert_register_protocol(proto_btbnep);

    expert_register_field_array(expert_btbnep, ei, array_length(ei));

    module = prefs_register_protocol_subtree("Bluetooth", proto_btbnep, NULL);

    prefs_register_static_text_preference(module, "bnep.version",

            "Bluetooth Protocol BNEP version: 1.0",

            "Version of protocol supported by this dissector.");

    prefs_register_bool_preference(module, "bnep.top_dissect",

            "Dissecting the top protocols", "Dissecting the top protocols",

            &top_dissect);

}

void

proto_reg_handoff_btbnep(void)

{

    ipx_handle    = find_dissector_add_dependency("ipx", proto_btbnep);

    llc_handle    = find_dissector_add_dependency("llc", proto_btbnep);

    ethertype_handle = find_dissector_add_dependency("ethertype", proto_btbnep);

    dissector_add_string("bluetooth.uuid", "1115", btbnep_handle);

    dissector_add_string("bluetooth.uuid", "1116", btbnep_handle);

    dissector_add_string("bluetooth.uuid", "1117", btbnep_handle);

    dissector_add_uint("btl2cap.psm", BTL2CAP_PSM_BNEP, btbnep_handle);

    dissector_add_for_decode_as("btl2cap.cid", btbnep_handle);

}

/*

 * 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:

 */