/*

* Copyright (c) 2003-2009 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:   "intermediate" class between

*       CIkev2Negotiation class of ikev2plugin and ECOM plug-in

*

*/

#ifndef __IKEV2EAPINTERFACE_H_

#define __IKEV2EAPINTERFACE_H_

#include <e32base.h>

#include <abs_eap_vpn_if.h> // MAbsEapVpnInterface

class CIkeData;

class TPayloadIkev2;

class CEapVpnInterface;

class MIkeDebug;

class MIkev2EapIfObserver

    {

public:

    virtual void SendEapDataL(HBufC8* aEapData) = 0;

    virtual void EapEventL(TInt aEvent) = 0;

    };

/**

 *  CIkev2EapIf

 *

 *  CIkev2EapIf is an "intermediate" class between

 *  CIkev2Negotiation class of ikev2plugin and ECOM plug-in (eapplugin)

 *  which provides access into general EAP protocol implementation in

 *  system. CIkev2EapIf implements also the callback functions required

 *  by the EAP ECOM plug-in.

 *

 *  @lib internal ikev2lib.lib

 *  @since S60 3.0

 */

NONSHARABLE_CLASS(CIkev2EapIf) : public CBase, public MAbsEapVpnInterface

    {

public:

    /**

     * NewL

     *

     * @since S60 3.0

     * @param aNeg IKE negotiation. Must be != NULL. Ownership not taken.

     * @param aEapType EAP type.

     * @param aIkeData Ref to IKE data. Ownership not taken.

     * @param aDebug Debug trace interface 

     * @return self

     */

    static CIkev2EapIf* NewL(MIkev2EapIfObserver& aEapIfObserver, 

                             TUint8 aEapType, 

                             CIkeData* aIkeData, 

                             MIkeDebug& aDebug);

    ~CIkev2EapIf();

    inline TInt Status() {return iErrorStatus;}

    inline HBufC8* Identity()

        {

        HBufC8* Id = (HBufC8*)iIdentity;

        iIdentity  = 0;

        return Id;

        }

    inline HBufC8* MSK()

        {

        HBufC8* msk = (HBufC8*)iMSK;

        iMSK = NULL;

        return msk;

        }

    void ErrorStopL() {};

    void EapDataInbound(TPayloadIkev2* aEapPayload);

    void QueryIdentity();       

    /**

     * From MAbsEapVpnInterface.

     * Implementation of pure virtual methods

     */   

    void EapOutboundL(HBufC8* aResponse);

    void EapIdentityResponseL(HBufC8* aIdentity);

    void EapSharedKeyL(HBufC8* aSharedKey);

    void EapIndication(TNotification aNotification);    

private: // implementation

    CIkev2EapIf(MIkev2EapIfObserver& aEapIfObserver, TUint8 aEapType, MIkeDebug& aDebug);

    void ConstructL(CIkeData* aIkeData);

private: // data

    MIkev2EapIfObserver& iEapIfObserver;   

    CEapVpnInterface* 	 iEapPlugin;     // Own: ECOM plug-in

    HBufC8*              iIdentity;      // Identity buffer

    HBufC8*              iMSK;           // Preshared key

    TInt                 iErrorStatus;   // Error status, if construct fails

    TUint8               iEapType;

    TUint8               iReserved[3];   // Dummy for alignment

    /**

     * Debug trace interface.

     * Not own.

     */    

    MIkeDebug&                          iDebug;    

};

//

//  Internal EAP event codes used in IKEv2 plug-in EapEventL() calls

//

const TInt KEapEventSuccess          = 0;

const TInt KEapEventGetIdentity      = 1;

const TInt KEapEventGetPSK           = 2;

const TInt KEapEventFailed           = 3;

#endif // __IKEV2EAPINTERFACE_H_