1 /*

     2 * Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).

     3 * All rights reserved.

     4 * This component and the accompanying materials are made available

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

     6 * which accompanies this distribution, and is available

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

     8 *

     9 * Initial Contributors:

    10 * Nokia Corporation - initial contribution.

    11 *

    12 * Contributors:

    13 *

    14 * Description:  Keepalive object for Nokia IPsec over NAT

    15 *

    16 */

    17 

    18 

    19 #ifndef C_IKEV1NOKIANATTKEEPALIVE_H

    20 #define C_IKEV1NOKIANATTKEEPALIVE_H

    21 

    22 #include <in_sock.h> // TInetAddr

    23 

    24 class CIkev1PluginSession;

    25 class MIkeDebug;

    26 

    27 /**

    28  * Nokia IPsec over NAT keepalive object. Sends

    29  * UDP packets to specified host with specified

    30  * interval to keep NAT mapping alive. Constructing

    31  * the object starts sending and sending is stopped

    32  * when destruction happens.

    33  * @internalComponent

    34  */

    35 NONSHARABLE_CLASS(CIkev1NokiaNattKeepAlive) : public CBase

    36 	{

    37 	

    38 public: // Public constructor and destructor

    39 	static CIkev1NokiaNattKeepAlive* NewL( CIkev1PluginSession&  aPluginSession, 

    40 			                          TInetAddr& aDestAddr,

    41 			                          TUint16 aPort,

    42 			                          TUint aInterval,

    43 			                          MIkeDebug& aDebug );

    44 	virtual ~CIkev1NokiaNattKeepAlive();

    45 

    46 private: // Private constructors

    47 

    48 	CIkev1NokiaNattKeepAlive( CIkev1PluginSession&  aPluginSession,

    49 	                          TInetAddr& aDestAddr, 

    50 	                          TUint16 aPort,

    51 	                          MIkeDebug& aDebug );

    52 	void ConstructL( TUint aInterval );

    53 	

    54 private:

    55 	

    56 	/**

    57 	 * Send

    58 	 * Sends keepalive packet

    59 	 */

    60 	void Send();

    61 

    62 	/**

    63 	 * PeriodicCallback

    64 	 * Callback function which is called everytime

    65 	 * the interval is reached.

    66 	 */

    67 	static TInt PeriodicCallback(TAny *aPtr);

    68 

    69 private:

    70     CIkev1PluginSession&  iPluginSession;

    71 

    72 	TInetAddr iDestAddr;

    73 	TUint iPort;

    74 	

    75 	/** Data to send in keepalive packet */

    76 	TBuf8<1> iMsg;

    77 	

    78 	CPeriodic *iTimer;

    79 	

    80 	MIkeDebug& iDebug;

    81 	

    82 	};

    83 

    84 #endif // C_IKEV1NOKIANATTKEEPALIVE_H