/*

* Copyright (c) 2005-2009 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:  IKEv1 SA

*

*/

#ifndef C_IKEV1SA_H

#define C_IKEV1SA_H

#include "ikev1SAdata.h"

#include "ikev1keepalive.h"

#define SECOND 1000000  // One second is 1000000 us. (1 us. per tick)

#define ISAKMP_DELETE_TIME 2*SECOND    //Expiration time for a ISAKMP SA after it's erased

class CIkev1PluginSession;

class CIkev1NokiaNattKeepAlive;

class MIkeDebug;

//List of the IPSEC SAs negotiated by the ISAKMP SA

NONSHARABLE_CLASS(CIpsecSPIList) : public CArrayPtrFlat<TIpsecSPI>

{

	public:

		CIpsecSPIList(TInt aGranularity);

		~CIpsecSPIList();

};

NONSHARABLE_CLASS(CIkev1SA) : public CTimer, public MDpdHeartBeatEventHandler

{

	public:

		static CIkev1SA* NewL( CIkev1PluginSession& aPluginSession,

		                       TIkev1SAData& aIkev1SAdata,

		                       CSARekeyInfo* aSaRekey,

		                       MIkeDebug& aDebug );	

		~CIkev1SA();	

		void UpdateSAL( TBool aExpired,

		                TIkev1SAData* aIkev1SAdata );

		void ExpireSA();

		void AddIpsecSPIL( TIpsecSPI& aIpsecSpi );

        TBool FindIpsecSPI( TUint32 aSPI,

                            TBool aInbound );

		TBool DeleteIpsecSPI( TUint32 aSPI,

		                      TBool aInbound );

		/**

		 * Deletes IPsec SAs and sends delete payload to the GW.

		 */

		void DeleteIpsecSAs();

		/**

		 * Deletes IPsec SAs without sending delete payload to the GW.

		 * Used when connection is lost.

		 */

		void DeleteIpsecSAsForced();	

		void SetExpired();

		inline TBool IsExpired() {return iExpired;}

		void EventHandlerL();

		inline void SetDeactivating( TBool aDeactivating ) { iDeactivating = aDeactivating; }

		inline TBool IsDeactivating() { return iDeactivating; }

		void CancelRekey();

	protected:

	//

	// CActive methods

	//

		void DoCancel();

		void RunL();

		TInt RunError(TInt aError);

	private:

		CIkev1SA( CIkev1PluginSession& aPluginSession,

		          MIkeDebug& aDebug );

		void ConstructL( TIkev1SAData& aIkev1SAdata,

		                 CSARekeyInfo* aSaRekey );

		void StartTimer();

	public:	

		TIkev1SAData iHdr;      // Common negotiation info

	    CIpsecSPIList* iSPIList;    //Contains a SPIs List to know the direction when a delete received

	private:	

	    CIkev1PluginSession&  iPluginSession;

		TUint32 iRemainingTime;     //Timer remaining

		TUint32 iRemainingKB;       //KB life remaining

		TUint32 iCurrentBytes;      //Bytes life currently added

		TUint32 iLeftOverTime;      //Time remaining after rekey started

		TBool   iRekeyed;           //Rekeyed SA

		CIkeV1KeepAlive* iIkeKeepAlive; // Pointer to common IKE keepalive object

		TBool iExpired;     //The ISAKMP SA may be expired but waiting possible delete IPSEC SA msgs that arrive after

		CIkev1NokiaNattKeepAlive *iNokiaNatt; // Pointer to Nokia NAT-T keepalive object

		TBool iDeactivating;

		MIkeDebug& iDebug;		

};

#endif // C_IKEV1SA_H