/* packet-bthcrp.c

 * Routines for Bluetooth HCRP dissection

 *

 * Copyright 2013, 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/expert.h>

#include "packet-btl2cap.h"

#include "packet-btsdp.h"

enum {

    FORCE_CLIENT_DEFAULT  = 0,

    FORCE_CLIENT_YES      = 1,

    FORCE_CLIENT_NO       = 2

};

static int proto_bthcrp;

static int hf_bthcrp_notification_pdu_id;

static int hf_bthcrp_control_pdu_id;

static int hf_bthcrp_control_transaction_id;

static int hf_bthcrp_control_parameter_length;

static int hf_bthcrp_control_status;

static int hf_bthcrp_callback_context_id;

static int hf_bthcrp_control_callback_timeout;

static int hf_bthcrp_control_timeout;

static int hf_bthcrp_control_1284_id;

static int hf_bthcrp_control_register;

static int hf_bthcrp_control_start_byte;

static int hf_bthcrp_control_number_of_bytes;

static int hf_bthcrp_control_client_credit_granted;

static int hf_bthcrp_control_server_credit_granted;

static int hf_bthcrp_control_client_credit_return;

static int hf_bthcrp_control_server_credit_return;

static int hf_bthcrp_control_client_credit_query;

static int hf_bthcrp_control_server_credit_query;

static int hf_bthcrp_control_status_reserved_76;

static int hf_bthcrp_control_status_paper_empty;

static int hf_bthcrp_control_status_select;

static int hf_bthcrp_control_status_not_error;

static int hf_bthcrp_control_status_reserved_20;

static int hf_bthcrp_data;

static int ett_bthcrp;

static expert_field ei_bthcrp_control_parameter_length;

static expert_field ei_bthcrp_unexpected_data;

static dissector_handle_t bthcrp_handle;

static int      force_client     = FORCE_CLIENT_DEFAULT;

static int      psm_control;

static int      psm_data_stream;

static int      psm_notification;

static const value_string control_pdu_id_vals[] = {

    { 0x0001,   "CR_DataChannelCreditGrant" },

    { 0x0002,   "CR_DataChannelCreditRequest" },

    { 0x0003,   "CR_DataChannelCreditReturn" },

    { 0x0004,   "CR_DataChannelCreditQuery" },

    { 0x0005,   "CR_GetLPTStatus" },

    { 0x0006,   "CR_Get1284ID" },

    { 0x0007,   "CR_SoftReset" },

    { 0x0008,   "CR_HardReset" },

    { 0x0009,   "CR_RegisterNotification" },

    { 0x000A,   "CR_NotificationConnectionAlive" },

    { 0, NULL }

};

static const value_string status_vals[] = {

    { 0x0000,   "Feature Unsupported" },

    { 0x0001,   "Success" },

    { 0x0002,   "Credit Synchronization Error" },

    { 0xFFFF,   "Generic Failure" },

    { 0, NULL }

};

static const value_string notification_pdu_id_vals[] = {

    { 0x0001,   "N_Notification" },

    { 0, NULL }

};

static const value_string register_vals[] = {

    { 0x00,   "Remove Client From Receiver Notification" },

    { 0x01,   "Add Client To Receiver Notification" },

    { 0, NULL }

};

static const enum_val_t force_client_enum[] = {

    { "default",  "Default",  FORCE_CLIENT_DEFAULT },

    { "yes",      "Yes",      FORCE_CLIENT_YES },

    { "no",       "No",       FORCE_CLIENT_NO },

    { NULL, NULL, 0 }

};

void proto_register_bthcrp(void);

void proto_reg_handoff_bthcrp(void);

static int

dissect_control(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,

        int offset,  bool is_client_message)

{

    /* flow: requests: only client -> server; responses: only server ->  */

    proto_item   *pitem;

    uint16_t      control_pdu_id;

    unsigned      credits;

    unsigned      timeout;

    unsigned      context_id;

    unsigned      notification_register;

    unsigned      number;

    int           parameter_length;

    pitem = proto_tree_add_item(tree, hf_bthcrp_control_pdu_id, tvb, offset, 2, ENC_BIG_ENDIAN);

    control_pdu_id = tvb_get_ntohs(tvb, offset);

    offset += 2;

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

            ((is_client_message) ? "Request" : "Response"),

            val_to_str_const(control_pdu_id, control_pdu_id_vals,  "Unknown PDU ID"));

    if (control_pdu_id >= 0x8000) {

        proto_item_append_text(pitem, " (Vendor Specific)");

        col_append_str(pinfo->cinfo, COL_INFO, " (Vendor Specific)");

    } else if (control_pdu_id == 0x0000 || control_pdu_id >= 0x000B ) {

        proto_item_append_text(pitem, " (Reserved)");

        col_append_str(pinfo->cinfo, COL_INFO, " (Reserved)");

    }

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

    offset += 2;

    pitem = proto_tree_add_item(tree, hf_bthcrp_control_parameter_length, tvb, offset, 2, ENC_BIG_ENDIAN);

    parameter_length = tvb_get_ntohs(tvb, offset);

    offset += 2;

    if (!is_client_message && parameter_length < 2) {

        expert_add_info_format(pinfo, pitem, &ei_bthcrp_control_parameter_length,

                "Parameter length is shorter than 2 in response");

    }

    if (parameter_length < tvb_reported_length_remaining(tvb, offset)) {

        expert_add_info_format(pinfo, pitem, &ei_bthcrp_control_parameter_length,

                "Parameter length is shorter than payload length");

    } else if (parameter_length > tvb_reported_length_remaining(tvb, offset)) {

        expert_add_info_format(pinfo, pitem, &ei_bthcrp_control_parameter_length,

                "Parameter length is larger than payload length");

    }

    if (!is_client_message) {

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

        offset += 2;

    }

    if (control_pdu_id >= 0x8000) {

        if (tvb_reported_length_remaining(tvb, offset)) {

            proto_tree_add_item(tree, hf_bthcrp_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA);

            offset += tvb_reported_length_remaining(tvb, offset);

        }

    } else switch(control_pdu_id) {

        case 0x0001: /* CR_DataChannelCreditGrant */

            if (is_client_message) {

                proto_tree_add_item(tree, hf_bthcrp_control_client_credit_granted, tvb, offset, 4, ENC_BIG_ENDIAN);

                credits = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - CreditGranted: %u", credits);

                offset += 4;

            }

            break;

        case 0x0002: /* CR_DataChannelCreditRequest */

            if (!is_client_message) {

                proto_tree_add_item(tree, hf_bthcrp_control_server_credit_granted, tvb, offset, 4, ENC_BIG_ENDIAN);

                credits = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - CreditGranted: %u", credits);

                offset += 4;

            }

            break;

        case 0x0003: /* CR_DataChannelCreditReturn */

            if (is_client_message) {

                proto_tree_add_item(tree, hf_bthcrp_control_client_credit_return, tvb, offset, 4, ENC_BIG_ENDIAN);

                credits = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - Client Credit Return: %u", credits);

                offset += 4;

            } else {

                proto_tree_add_item(tree, hf_bthcrp_control_server_credit_return, tvb, offset, 4, ENC_BIG_ENDIAN);

                credits = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - Server Credit Return: %u", credits);

                offset += 4;

            }

            break;

        case 0x0004: /* CR_DataChannelCreditQuery */

            if (is_client_message) {

                proto_tree_add_item(tree, hf_bthcrp_control_client_credit_query, tvb, offset, 4, ENC_BIG_ENDIAN);

                credits = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - Client Credit: %u", credits);

                offset += 4;

            } else {

                proto_tree_add_item(tree, hf_bthcrp_control_server_credit_query, tvb, offset, 4, ENC_BIG_ENDIAN);

                credits = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - Server Credit: %u", credits);

                offset += 4;

            }

            break;

        case 0x0005: /* CR_GetLPTStatus */

            if (!is_client_message) {

                proto_tree_add_item(tree, hf_bthcrp_control_status_reserved_76, tvb, offset, 1, ENC_BIG_ENDIAN);

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

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

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

                proto_tree_add_item(tree, hf_bthcrp_control_status_reserved_20, tvb, offset, 1, ENC_BIG_ENDIAN);

                offset += 1;

            }

            break;

        case 0x0006: /* CR_Get1284ID */

            if (is_client_message) {

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

                number = tvb_get_ntohs(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - Start Byte: %u", number);

                offset += 2;

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

                number = tvb_get_ntohs(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, ", Number Of Bytes: %u", number);

                offset += 2;

            } else {

                const uint8_t *id;

                proto_tree_add_item_ret_string(tree, hf_bthcrp_control_1284_id, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_ASCII | ENC_NA, pinfo->pool, &id);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - 1284 ID: %s", id);

                offset += tvb_reported_length_remaining(tvb, offset);

            }

            break;

        case 0x0007: /* CR_SoftReset */

        case 0x0008: /* CR_HardReset */

            break;

        case 0x0009: /* CR_RegisterNotification */

            if (is_client_message) {

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

                notification_register = tvb_get_uint8(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " -  Register: %s", val_to_str_const(notification_register, register_vals, "unknown register"));

                offset += 1;

                proto_tree_add_item(tree, hf_bthcrp_callback_context_id, tvb, offset, 4, ENC_BIG_ENDIAN);

                context_id = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, ", Callback ContextID: %u", context_id);

                offset += 4;

                proto_tree_add_item(tree, hf_bthcrp_control_callback_timeout, tvb, offset, 4, ENC_BIG_ENDIAN);

                timeout = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, ", Callback Timeout: %u", timeout);

                offset += 4;

            } else {

                proto_tree_add_item(tree, hf_bthcrp_control_timeout, tvb, offset, 4, ENC_BIG_ENDIAN);

                timeout = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - Timeout: %u", timeout);

                offset += 4;

                proto_tree_add_item(tree, hf_bthcrp_control_callback_timeout, tvb, offset, 4, ENC_BIG_ENDIAN);

                timeout = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, ", Callback Timeout: %u", timeout);

                offset += 4;

            }

            break;

        case 0x000A: /* CR_NotificationConnectionAlive */

            if (!is_client_message) {

                proto_tree_add_item(tree, hf_bthcrp_control_timeout, tvb, offset, 4, ENC_BIG_ENDIAN);

                timeout = tvb_get_ntohl(tvb, offset);

                col_append_fstr(pinfo->cinfo, COL_INFO, " - Timeout: %u", timeout);

                offset += 4;

            }

            break;

    }

    return offset;

}

static int

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

{

    /* flow: server <-> client */

    tvbuff_t *next_tvb;

    col_append_str(pinfo->cinfo, COL_INFO, "HCRP data stream");

    next_tvb = tvb_new_subset_remaining(tvb, offset);

    call_data_dissector(next_tvb, pinfo, tree);

    offset += tvb_reported_length_remaining(tvb, offset);

    return offset;

}

static int

dissect_notification(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree,

        int offset, bool is_client_message)

{

    /* flow: only server -> client */

    uint16_t      notification_pdu_id;

    proto_item   *pitem;

    if (is_client_message) {

        col_append_str(pinfo->cinfo, COL_INFO, "Notification: unexpected notification stream");

        return offset;

    }

    pitem = proto_tree_add_item(tree, hf_bthcrp_notification_pdu_id, tvb, offset, 2, ENC_BIG_ENDIAN);

    notification_pdu_id = tvb_get_ntohs(tvb, offset);

    offset += 2;

    col_append_fstr(pinfo->cinfo, COL_INFO, "Notification: %s", val_to_str_const(notification_pdu_id, notification_pdu_id_vals,  "Unknown PDU ID"));

    if (notification_pdu_id >= 0x8000) {

        proto_item_append_text(pitem, " (Vendor Specific)");

        col_append_str(pinfo->cinfo, COL_INFO, " (Vendor Specific)");

        if (tvb_reported_length_remaining(tvb, offset)) {

            proto_tree_add_item(tree, hf_bthcrp_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA);

            offset += tvb_reported_length_remaining(tvb, offset);

        }

    } else if (notification_pdu_id != 0x001) {

        proto_item_append_text(pitem, " (Reserved)");

        col_append_str(pinfo->cinfo, COL_INFO, " (Reserved)");

    }

    switch(notification_pdu_id) {

        case 0x01: /* N_NOTIFICATION */

            proto_tree_add_item(tree, hf_bthcrp_callback_context_id, tvb, offset, 4, ENC_BIG_ENDIAN);

            offset += 4;

            break;

    }

    return offset;

}

static int

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

{

    proto_item      *main_item;

    proto_tree      *main_tree;

    int              offset = 0;

    int              protocol = -1;

    bool             is_client_message = false;

    int              previous_proto;

    previous_proto = (GPOINTER_TO_INT(wmem_list_frame_data(wmem_list_frame_prev(wmem_list_tail(pinfo->layers)))));

    if (previous_proto == proto_btl2cap) {

        btl2cap_data_t  *l2cap_data;

        wmem_tree_key_t  key[10];

        uint32_t         interface_id;

        uint32_t         adapter_id;

        uint32_t         sdp_psm = SDP_PSM_DEFAULT;

        uint32_t         direction;

        uint32_t         bd_addr_oui;

        uint32_t         bd_addr_id;

        uint32_t         service_type;

        uint32_t         service_channel;

        uint32_t         frame_number;

        service_info_t  *service_info;

        l2cap_data = (btl2cap_data_t *) data;

        interface_id       = l2cap_data->interface_id;

        adapter_id         = l2cap_data->adapter_id;

        direction       = (l2cap_data->is_local_psm) ? P2P_DIR_SENT : P2P_DIR_RECV;

        if (direction == P2P_DIR_RECV) {

            bd_addr_oui = l2cap_data->remote_bd_addr_oui;

            bd_addr_id  = l2cap_data->remote_bd_addr_id;

        } else {

            bd_addr_oui = 0;

            bd_addr_id  = 0;

        }

        service_type    = BTSDP_L2CAP_PROTOCOL_UUID;

        service_channel = l2cap_data->psm;

        frame_number    = pinfo->num;

        key[0].length = 1;

        key[0].key = &interface_id;

        key[1].length = 1;

        key[1].key = &adapter_id;

        key[2].length = 1;

        key[2].key = &sdp_psm;

        key[3].length = 1;

        key[3].key = &direction;

        key[4].length = 1;

        key[4].key = &bd_addr_oui;

        key[5].length = 1;

        key[5].key = &bd_addr_id;

        key[6].length = 1;

        key[6].key = &service_type;

        key[7].length = 1;

        key[7].key = &service_channel;

        key[8].length = 1;

        key[8].key = &frame_number;

        key[9].length = 0;

        key[9].key = NULL;

        service_info = btsdp_get_service_info(key);

        if (service_info && service_info->interface_id == interface_id &&

                service_info->adapter_id == adapter_id &&

                service_info->sdp_psm == SDP_PSM_DEFAULT &&

                ((service_info->direction == P2P_DIR_RECV &&

                service_info->bd_addr_oui == bd_addr_oui &&

                service_info->bd_addr_id == bd_addr_id) ||

                (service_info->direction != P2P_DIR_RECV &&

                service_info->bd_addr_oui == 0 &&

                service_info->bd_addr_id == 0)) &&

                service_info->type == BTSDP_L2CAP_PROTOCOL_UUID &&

                service_info->channel == l2cap_data->psm) {

            if ((service_info->protocol == BTSDP_HARDCOPY_CONTROL_CHANNEL_PROTOCOL_UUID ||

                    service_info->protocol == BTSDP_HARDCOPY_DATA_CHANNEL_PROTOCOL_UUID) &&

                    ((!l2cap_data->is_local_psm && pinfo->p2p_dir == P2P_DIR_SENT) ||

                    (l2cap_data->is_local_psm && pinfo->p2p_dir == P2P_DIR_RECV))) {

                is_client_message = true;

            } else if (service_info->protocol == BTSDP_HARDCOPY_NOTIFICATION_PROTOCOL_UUID &&

                    ((l2cap_data->is_local_psm && pinfo->p2p_dir == P2P_DIR_SENT) ||

                    (!l2cap_data->is_local_psm && pinfo->p2p_dir == P2P_DIR_RECV))) {

                is_client_message = true;

            }

            protocol = service_info->protocol;

        }

        if (psm_control != 0 && l2cap_data->psm == psm_control) {

            protocol = BTSDP_HARDCOPY_CONTROL_CHANNEL_PROTOCOL_UUID;

        } else if (psm_data_stream != 0 && l2cap_data->psm == psm_data_stream) {

            protocol = BTSDP_HARDCOPY_DATA_CHANNEL_PROTOCOL_UUID;

        } else if (psm_notification != 0 && l2cap_data->psm == psm_notification) {

            protocol = BTSDP_HARDCOPY_NOTIFICATION_PROTOCOL_UUID;

        }

    }

    main_item = proto_tree_add_item(tree, proto_bthcrp, tvb, offset, -1, ENC_NA);

    main_tree = proto_item_add_subtree(main_item, ett_bthcrp);

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

    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;

    }

    if (force_client != FORCE_CLIENT_DEFAULT) {

        is_client_message = (force_client == FORCE_CLIENT_YES && pinfo->p2p_dir == P2P_DIR_SENT) ||

                (force_client != FORCE_CLIENT_YES && pinfo->p2p_dir == P2P_DIR_RECV);

    }

    if (protocol == BTSDP_HARDCOPY_CONTROL_CHANNEL_PROTOCOL_UUID) {

        offset = dissect_control(tvb, pinfo, main_tree, offset, is_client_message);

    } else if (protocol == BTSDP_HARDCOPY_DATA_CHANNEL_PROTOCOL_UUID) {

        offset = dissect_data(tvb, pinfo, main_tree, offset);

    } else if (protocol == BTSDP_HARDCOPY_NOTIFICATION_PROTOCOL_UUID) {

        offset = dissect_notification(tvb, pinfo, main_tree, offset, is_client_message);

    } else {

        col_append_str(pinfo->cinfo, COL_INFO, "HCRP stream");

    }

    if (tvb_reported_length_remaining(tvb, offset)) {

        proto_item *pitem;

        pitem = proto_tree_add_item(main_tree, hf_bthcrp_data, tvb, offset, tvb_reported_length_remaining(tvb, offset), ENC_NA);

        expert_add_info(pinfo, pitem, &ei_bthcrp_unexpected_data);

    }

    return offset;

}

void

proto_register_bthcrp(void)

{

    module_t *module;

    expert_module_t* expert_bthcrp;

    static hf_register_info hf[] = {

        { &hf_bthcrp_control_pdu_id,

            { "Control PDU ID",                  "bthcrp.control.pdu_id",

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

            NULL, HFILL }

        },

        { &hf_bthcrp_control_transaction_id,

            { "Transaction ID",                  "bthcrp.control.transaction_id",

            FT_UINT16, BASE_HEX, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_parameter_length,

            { "Parameter Length",                "bthcrp.control.parameter_length",

            FT_UINT16, BASE_HEX, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_status,

            { "Status",                          "bthcrp.control.status",

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

            NULL, HFILL }

        },

        { &hf_bthcrp_notification_pdu_id,

            { "Notification PDU ID",             "bthcrp.notification.pdu_id",

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

            NULL, HFILL }

        },

        { &hf_bthcrp_callback_context_id,

            { "Callback Context ID",             "bthcrp.callback.context_id",

            FT_UINT32, BASE_HEX, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_callback_timeout,

            { "Callback Timeout",                "bthcrp.callback.timeout",

            FT_UINT32, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_timeout,

            { "Timeout",                         "bthcrp.timeout",

            FT_UINT32, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_register,

            { "Register",                        "bthcrp.register",

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

            NULL, HFILL }

        },

        { &hf_bthcrp_control_1284_id,

            { "1284 ID",                         "bthcrp.1284_id",

            FT_STRING, BASE_NONE, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_start_byte,

            { "Start Byte",                      "bthcrp.start_byte",

            FT_UINT16, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_number_of_bytes,

            { "Number Of Bytes",                 "bthcrp.number_of_bytes",

            FT_UINT16, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_client_credit_granted,

            { "Client Credit Granted",           "bthcrp.client_credit_granted",

            FT_UINT32, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_server_credit_granted,

            { "Server Credit Granted",           "bthcrp.server_credit_granted",

            FT_UINT32, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_client_credit_return,

            { "Client Credit Return",            "bthcrp.client_credit_return",

            FT_UINT32, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_server_credit_return,

            { "Server Credit Return",            "bthcrp.server_credit_return",

            FT_UINT32, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_client_credit_query,

            { "Client Credit Query",             "bthcrp.client_credit_query",

            FT_UINT32, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_server_credit_query,

            { "Server Credit Query",             "bthcrp.server_credit_query",

            FT_UINT32, BASE_DEC, NULL, 0x00,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_status_reserved_76,

            { "Reserved",                        "bthcrp.status.reserved76",

            FT_UINT8, BASE_DEC, NULL, 0xC0,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_status_paper_empty,

            { "Paper Empty",                     "bthcrp.status.paper_empty",

            FT_BOOLEAN, 8, NULL, 0x20,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_status_select,

            { "Select",                          "bthcrp.status.select",

            FT_BOOLEAN, 8, NULL, 0x10,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_status_not_error,

            { "Not Error",                       "bthcrp.status.not_error",

            FT_BOOLEAN, 8, NULL, 0x08,

            NULL, HFILL }

        },

        { &hf_bthcrp_control_status_reserved_20,

            { "Reserved",                        "bthcrp.status.reserved210",

            FT_UINT8, BASE_HEX, NULL, 0x07,

            NULL, HFILL }

        },

        { &hf_bthcrp_data,

            { "Data",                            "bthcrp.data",

            FT_NONE, BASE_NONE, NULL, 0x00,

            NULL, HFILL }

        }

    };

    static int *ett[] = {

        &ett_bthcrp

    };

    static ei_register_info ei[] = {

        { &ei_bthcrp_control_parameter_length, { "bthcrp.control_parameter_length.bad", PI_PROTOCOL, PI_WARN, "Length bad", EXPFILL }},

        { &ei_bthcrp_unexpected_data, { "bthcrp.unexpected_data", PI_PROTOCOL, PI_WARN, "Unexpected data", EXPFILL }},

    };

    proto_bthcrp = proto_register_protocol("Bluetooth HCRP Profile", "BT HCRP", "bthcrp");

    bthcrp_handle = register_dissector("bthcrp", dissect_bthcrp, proto_bthcrp);

    proto_register_field_array(proto_bthcrp, hf, array_length(hf));

    proto_register_subtree_array(ett, array_length(ett));

    expert_bthcrp = expert_register_protocol(proto_bthcrp);

    expert_register_field_array(expert_bthcrp, ei, array_length(ei));

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

    prefs_register_static_text_preference(module, "hcrp.version",

            "Bluetooth Profile HCRP version: 1.2",

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

    prefs_register_obsolete_preference(module, "hcrp.is_client");

    prefs_register_enum_preference(module, "hcrp.force_client", "Force Client",

         "If \"yes\" localhost will be treat as Client, \"no\" as Server",

         &force_client, force_client_enum, false);

    prefs_register_uint_preference(module, "hcrp.control.psm", "L2CAP PSM for Control",

         "L2CAP PSM for Control",

         10, &psm_control);

    prefs_register_uint_preference(module, "hcrp.data.psm", "L2CAP PSM for Data",

         "L2CAP PSM for Data",

         10, &psm_data_stream);

    prefs_register_uint_preference(module, "hcrp.notification.psm", "L2CAP PSM for Notification",

         "L2CAP PSM for Notification",

         10, &psm_notification);

}

void

proto_reg_handoff_bthcrp(void)

{

    dissector_add_string("bluetooth.uuid", "12", bthcrp_handle);

    dissector_add_string("bluetooth.uuid", "14", bthcrp_handle);

    dissector_add_string("bluetooth.uuid", "16", bthcrp_handle);

    dissector_add_string("bluetooth.uuid", "1125", bthcrp_handle);

    dissector_add_string("bluetooth.uuid", "1126", bthcrp_handle);

    dissector_add_string("bluetooth.uuid", "1127", bthcrp_handle);

    dissector_add_for_decode_as("btl2cap.psm", bthcrp_handle);

    dissector_add_for_decode_as("btl2cap.cid", bthcrp_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:

 */