/*

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

* All rights reserved.

* This component and the accompanying materials are made available

* under the terms of "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:  Server side session of KMD server

*

*/

#ifndef C_KMDSESSION_H

#define C_KMDSESSION_H

#include <e32base.h>

#include <es_sock.h>

#include "activationstarter.h"

#include "connectionstarter.h"

#include "connectionstopper.h"

#include "fqdnresolver.h"

// FORWARD DECLARATIONS

class CKmdServer;

class CKmdSessionHandler;

class MIkeDebug;

class TVPNAddress;

/**

 *  KMD session.

 *  Server side session of KMD server. Handles client requests.

 *

 *  @lib internal (kmdserver.exe)

 */

class CKmdSession : public CSession2,

                    public MActivationStarterCallback,

                    public MConnectionStarterCallback,

                    public MConnectionStopperCallback,

                    public MFqdnResolverCallback

    {

public: 

    /**

     * Two-phased constructor.

     * @param aServer KMD server

     * @param aDebug Debug trace interface

     */

    static CKmdSession* NewL( CKmdServer& aServer,

                              MIkeDebug& aDebug );    

    /**

     * Destructor.

     */

    ~CKmdSession();

// from base class CSession2

    /**

     * From CSession2

     * Handles client request.

     *

     * @param aMessage Message request

     */

    void ServiceL( const RMessage2& aMessage );

// from base class MConnectionStarterCallback

    /**

     * From MConnectionStarterCallback

     * Notification about completion of real connection starting.

     *

     * @param aStatus Completion status

     * @param aRealIapId IAP Id of started connection

     * @param aRealNetId Net Id of started connection

     */

    void RealConnectionStarted( TInt aStatus,

                                TInt aRealIapId,

                                TInt aRealNetId );

// from base class MConnectionStopperCallback

    /**

     * From MConnectionStopperCallback

     * Notification about completion of VPN connection stopping.

     *

     * @param aStatus Completion status

     */

    void VpnConnectionStopped( TInt aStatus );

// from base class MFqdnResolverCallback

    /**

     * From MFqdnResolverCallback

     * Notifies about completion of FQDN address resolving.

     *

     * @param aStatus Completion status

     * @param aNameEntry Result of name resolution

     */

    void AddressResolveCompleted( TInt aStatus,

                                  TNameEntry aNameEntry );

// from base class MActivationStarterCallback

    /**

     * From MActivationStarterCallback

     * Notification about completion of activation.

     *

     * @param aStatus Completion status

     * @param aVirtualIp Internal address info

     */

    void ActivationCompleted( TInt aStatus,

                              const TVPNAddress& aVirtualIp );

private:

    CKmdSession( CKmdServer& aServer,

                 MIkeDebug& aDebug );      

    /**

     * Cancels real connection starting.

     */

    void DoCancelStartConnection();

    /**

     * Cancels activating

     */

    void DoCancelActivate();

    /**

     * Cancels FQDN address resolving.

     */

    void DoCancelResolveAddress();

private: // data    

    /**

     * KMD server.

     * Not own.

     */

    CKmdServer&         iServer;    

    /**

     * VPN IAP Id.

     * Not own.

     */

    TUint32             iVpnIapId;

    /**

     * Connection starter active object.

     * Own.

     */

    CConnectionStarter* iConnectionStarter;  

    /**

     * Connection stopper active object.

     * Own.

     */

    CConnectionStopper*  iConnectionStopper;

    /**

     * FQDN address resolver active object.

     * Own.

     */

    CFqdnResolver*      iFqdnResolver;

    /**

     * Activation starter active object.

     * Own.

     */

    CActivationStarter* iActivationStarter;

    /**

     * Pending start connection message.

     * Own.

     */

    RMessage2           iPendingStartConnection;

    /**

     * Pending stop connection message.

     * Own.

     */

    RMessage2           iPendingStopConnection;

    /**

     * Pending FQDN resolve message.

     * Own.

     */

    RMessage2           iPendingFqdnResolve;

    /**

     * Pending activate message.

     * Own.

     */

    RMessage2           iPendingActivate;

    /**

     * Debug trace interface.

     * Not own.

     */

    MIkeDebug&          iDebug;

    };

#endif // C_KMDSESSION_H