/*

* Copyright (c) 2008-2009 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:  VPN PFKEY socket interface

*

*/

#ifndef C_PFKEYSOCKET_H

#define C_PFKEYSOCKET_H

#include <es_sock.h>

#include <in_sock.h>

#include <lib_pfkey.h>

#include "pfkeymsg.h"

// FORWARD DECLARATIONS

class TIpsecSAData;

class RSocketServ;

class MIkeDebug;

class MPFKeyMessageListener

    {

public:

    virtual void PfkeyMessageReceived( const TPfkeyMessage& aReq ) = 0;

    };

class TPendingSpiRequest

    {

public:

    TPendingSpiRequest(TUint32& aSpi, TRequestStatus& aClientStatus): 

                       iSpi(aSpi), iClientStatus(aClientStatus){}

    TUint32& iSpi;

    TRequestStatus& iClientStatus;   

    };

//

// Register for ESP

// and stay listening the PFKEY socket

//

class CPFKeySocketIf : public CActive

    {

public:

    IMPORT_C static CPFKeySocketIf* NewL( MPFKeyMessageListener* aListener,

                                          MIkeDebug& aDebug );

	~CPFKeySocketIf() ;

    //PFKEY related functions

	void GetSpi( const TUint8 aType,

                 const TUint32 aSeq,

                 const TInetAddr& aSrc,

                 const TInetAddr& aDst,

                 TUint32& aSpi,

                 TRequestStatus& aClientStatus);

	void CancelGetSpi(TRequestStatus& aClientStatus);

	IMPORT_C void AcquireSAError( const TIpsecSAData& aSAData,

                                  const TInt aError );

	IMPORT_C void UpdateSAL( const TIpsecSAData& aSAData );

	IMPORT_C void AddSAL( const TIpsecSAData& aSAData );

	IMPORT_C void DeleteSA( const TUint32 aSPI,

                            const TInetAddr& aSrc,

                            const TInetAddr& aDst,

                            const TUint8 aProtocol );

	IMPORT_C void FlushSAs();    

private:

    CPFKeySocketIf( MPFKeyMessageListener* aListener,

                    MIkeDebug& aDebug );

    void ConstructL();        

    void AddUpdateSAL( const TUint8 aType,

                       const TIpsecSAData& aSAData );

    TUint32 NewSpi();

#ifdef _DEBUG           

    void ShowMessageL( TPfkeyRecvMsg& aMsg );

#endif  

// from base class CActive    

    void RunL();

    void DoCancel();

    TInt RunError( TInt aError );     

protected: // data

    MPFKeyMessageListener*  iListener;

private: // data

    RSocketServ             iSocketServer;

    RSADB                   iSadb;    

    TPfkeyRecvMsg           iMsg;

    TUint32                 iSeq;    

    TUint32                 iSpiBase;        

    MIkeDebug&              iDebug;

    RArray<TPendingSpiRequest> iPendingSpiRequests;

    };

#endif // C_PFKEYSOCKET_H