/*

* Copyright (c) 2005-2008 Nokia Corporation and/or its subsidiary(-ies).

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of the License "Eclipse Public License v1.0"

* which accompanies this distribution, and is available

* at the URL "http://www.eclipse.org/legal/epl-v10.html".

*

* Initial Contributors:

* Nokia Corporation - initial contribution.

*

* Contributors:

*

* Description:  Statemachine for connecting to a WPA network

*

*/

#ifndef CORE_SUB_OPERATION_WPA_CONNECT_H

#define CORE_SUB_OPERATION_WPA_CONNECT_H

#include "core_operation_base.h"

#include "core_ap_data.h"

#include "abs_core_event_handler.h"

#include "core_type_list.h"

#include "abs_wlan_eapol_callback_interface.h"

/** The maximum length of a PMKID. */

const u32_t CORE_EAPOL_PMKID_MAX_LENGTH  = 256;

class core_server_c;

class abs_core_driverif_c;

class core_frame_dot11_ie_c;

class core_frame_assoc_resp_c;

/**

 * Statemachine for connecting to a WPA network

 *

 * @lib wlmserversrv.lib

 * @since S60 v3.1

 */

NONSHARABLE_CLASS( core_sub_operation_wpa_connect_c ) :

    public core_operation_base_c,

    public abs_wlan_eapol_callback_interface_c,

    public abs_core_event_handler_c

    {

public:

    /**

     * The possible states of the state machine.

     */

    enum core_state_e

        {

        core_state_init = core_base_state_next,

        core_state_start_authentication_needed,

        core_state_do_connect,

        core_state_req_connect,

        core_state_req_connect_failed,

        core_state_req_association_failed,

        core_state_process_eapol_frame,

        core_state_req_state_notification,

        core_state_bss_lost,

        core_state_user_cancel,

        core_state_MAX

        };

    /**

     * Constructor.

     */

    core_sub_operation_wpa_connect_c(

        u32_t request_id,

        core_server_c* server,

        abs_core_driverif_c* drivers,

        abs_core_server_callback_c* adaptation,

        bool_t& is_connected,

        core_management_status_e& connect_status,

        const core_ssid_s& ssid,

        core_ap_data_c& ap_data,

        bool_t& is_cached_sa_used,

        core_type_list_c<core_frame_dot11_ie_c>& assoc_ie_list,

        core_frame_assoc_resp_c** assoc_resp );

    /**

     * Destructor.

     */

    virtual ~core_sub_operation_wpa_connect_c();

protected:

    /**

     * This method is called when a pending request has been completed

     * and so sub-operations are pending.

     *

     * @since S60 v3.1

     * @return status of the operation:

     *     core_error_request_pending if the operation is not finished,

     *     otherwise the status code of the finished operation

     */

    core_error_e next_state();

    /**

     * This method is called when the operation needs to be canceled.     

     *

     * @since S60 v3.1

     * @return status of the operation:

     *     core_error_request_pending if the operation is not finished,

     *     otherwise the status code of the finished operation

     */

    core_error_e cancel();

    /**

     * This method is called when the operation is cancelled from the outside.

     *

     * @since S60 v3.2

     * @param do_graceful_cancel Whether cancel should be graceful or forced.

     */

    void user_cancel(

        bool_t do_graceful_cancel );

// from base class abs_wlan_eapol_callback_interface_c  

    /**

     * From abs_wlan_eapol_callback_interface_c

     */

    core_error_e packet_send(

        network_id_c * send_network_id,

        u8_t * packet_data,

        u32_t packet_data_length,

        bool_t send_unencrypted );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */

    core_error_e associate(

        wlan_eapol_if_eapol_key_authentication_mode_e authentication_mode );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */

    core_error_e disassociate(

        network_id_c * receive_network_id,

	    const bool_t self_disassociation );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */        

    core_error_e packet_data_session_key(

        network_id_c * send_network_id,

        session_key_c * key );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */        

    void state_notification(

        state_notification_c * state );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */

    core_error_e reassociate(

        network_id_c * send_network_id,

        const wlan_eapol_if_eapol_key_authentication_type_e authentication_type,

        u8_t * PMKID,

        u32_t PMKID_length );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */

    core_error_e complete_check_pmksa_cache(

        core_type_list_c<network_id_c> & network_id_list );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */

    core_error_e complete_start_wpx_fast_roam_reassociation(

        network_id_c * receive_network_id,

        u8_t * reassociation_request_ie,

        u32_t reassociation_request_ie_length );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */

    core_error_e new_protected_setup_credentials(

        core_type_list_c< protected_setup_credential_c > & credential_list );

    /**

     * From abs_wlan_eapol_callback_interface_c

     */

    void handle_error(

        wlan_eapol_if_error_e errorcode,

        wlan_eapol_if_message_type_function_e function );

// from base class abs_core_event_handler_c  

    bool_t notify(

        core_am_indication_e indication );

private: // data

    /**

     * Whether we are still connected to an AP.

     */

    bool_t& is_connected_m;

    /**

     * Whether the connection attempt uses a cached security association.

     */

    bool_t& is_cached_sa_used_m;

    /**

     * Status of connection attempt.

     */

    core_management_status_e& connect_status_m;

    /**

     * SSID to connect to.

     */

    const core_ssid_s& ssid_m;

    /**

     * AP to connect to.

     */

    core_ap_data_c& ap_data_m;

    /**

     * BSSID currently tried.

     */

    core_mac_address_s current_bssid_m;

    /**

     * Length of PMKID data.

     */

    u16_t pmkid_length_m;

    /**

     * PMKID data.

     */

    u8_t pmkid_data_m[CORE_EAPOL_PMKID_MAX_LENGTH];

    /**

     * Sent WPA/RSN/WAPI IE data.

     */

    core_frame_dot11_ie_c* sent_ie_m;

    /**

     * Authentication algorithm used for the connection.

     */

    u16_t auth_algorithm_m;

    /**

     * Authentication type for EAPOL.

     */

    wlan_eapol_if_eapol_key_authentication_type_e eapol_auth_type_m;

    /**

     * List of IEs that will be added to the (re-)association request.

     */

    core_type_list_c<core_frame_dot11_ie_c>& assoc_ie_list_m;

    /**

     * The (re-)association response frame is stored here if received.

     * Not owned by this class.

     */

    core_frame_assoc_resp_c** assoc_resp_m;

    /**

     * Whether the connection attempt uses a proactive key caching.

     */

    bool_t is_key_caching_used_m;

    };

#endif // CORE_SUB_OPERATION_WPA_CONNECT_H