--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/ikev2lib/inc/ikev2receiver.h	Thu Dec 17 09:14:51 2009 +0200
@@ -0,0 +1,154 @@
+/*
+* Copyright (c) 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:  Receiver of UDP datagrams
+*
+*/
+
+
+#ifndef C_IKEV2RECEIVER_H
+#define C_IKEV2RECEIVER_H
+
+#include <e32base.h>
+#include <in_sock.h>
+
+// FORWARD DECLARATIONS
+class MIkeDataInterface;
+class ThdrISAKMP;
+
+/**
+ *  IKEv2 receiver callback interface.
+ *  Callback interface which is used by CIkev2Receiver object to notify
+ *  about received IKE message.
+ * 
+ *  @lib internal (ikev2lib.lib)
+  */
+NONSHARABLE_CLASS(MIkev2ReceiverCallback)
+    {
+public:        
+    /**
+     * Notifies about received IKE message.
+     *
+     * @param aIkeMsg IKE message
+     * @param aSrcAddr Source IP address/port
+     * @param aLocalPort Local port
+     */
+    virtual void IkeMsgReceived( const ThdrISAKMP& aIkeMsg,
+                                 const TInetAddr& aSrcAddr,
+                                 TInt aLocalPort ) = 0;
+    
+    /**
+     * Notifies about receive error.
+     * @param aStatus Error value
+     */
+    virtual void ReceiveError( TInt aError ) = 0;    
+    };
+
+/**
+ *  IKEv2 receiver.
+ *  Active object provides functionality for receiving UDP datagrams.
+ *
+ *  @lib internal (ikev2lib.lib)
+  */
+NONSHARABLE_CLASS(CIkev2Receiver) : public CActive
+    {
+public:
+    /**
+     * Two-phased constructor.
+     * @param aDataInterface IKE data interface
+     * @param aCallback Callback interface
+     */
+    static CIkev2Receiver* NewL( MIkeDataInterface& aDataInterface,
+                                 MIkev2ReceiverCallback& aCallback );
+
+    /**
+    * Destructor.
+    */
+    ~CIkev2Receiver();
+
+    /**
+    * Starts receiving.
+    */
+    void StartReceive();
+    
+    /**
+    * Stops receiving.
+    */
+    void StopReceive();
+    
+private:
+    
+    CIkev2Receiver( MIkeDataInterface& aDataInterface,
+                    MIkev2ReceiverCallback& aCallback );
+
+    void ConstructL();
+    
+    /**
+     * Receives UDP data.
+     */    
+    void DoReceive();
+    
+// from base class CActive            
+    
+    /**
+     * From CActive
+     * Handles completion of receive.
+     */    
+    void RunL();
+
+    /**
+     * From CActive
+     * Handles cancellation of receive.
+     */    
+    void DoCancel();
+        
+private: // data
+    
+    /**
+     * UDP data.
+     * Own.
+     */
+    HBufC8*                     iUdpData;
+    
+    /**
+     * Source IP address/port.
+     * Own.
+     */
+    TInetAddr                   iSrcAddr;
+    
+    /**
+     * Local port.
+     * Own.
+     */
+    TInt                        iLocalPort;
+    
+    /**
+     * Informs if data is received.
+     * Own.
+     */
+    TBool                       iReceivingData;
+    
+    /**
+     * IKE data interface.
+     * Not own.
+     */
+    MIkeDataInterface&          iDataInterface;
+    
+    /**
+     * Callback interface.
+     * Not own.
+     */
+    MIkev2ReceiverCallback&     iCallback;
+    };
+
+#endif // C_Ikev2Receiver_H