--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vpnengine/ikesocket/inc/ikedatainterface.h	Thu Dec 17 09:14:51 2009 +0200
@@ -0,0 +1,104 @@
+/*
+* Copyright (c) 2008 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:  IKE socket data interface
+*
+*/
+
+
+#ifndef M_IKEDATAINTERFACE_H
+#define M_IKEDATAINTERFACE_H
+
+#include <in_sock.h>
+
+/**
+ *  IKE socket data transfer interface.
+ *
+ *  This interface defines functionality for sending and receiving UDP data.
+ *
+ *  After client has started receiving, data is queued to receive queue. Queud
+ *  data will be cleared, when clients stops receiving, or connection has been
+ *  disconnected.
+ *
+ *  @lib ikesocket.lib
+ */
+class MIkeDataInterface
+    {    
+public:
+    
+    /**
+     * Sends UDP data.
+     *
+     * @param aLocalPort Local port
+     * @param aDestAddr Destination IP address/port
+     * @param aUdpData UDP data
+     * @param aDscp DSCP value
+     * @param aStatus Completion status (returned)
+     *                -KErrArgument if local port is neither 500 or 4500, and
+     *                              destination port does not equal local port
+     *                              (equal when Nokia NAT keepalive packet
+     *                              sent)
+     *                -KErrDisconnected if connection is disconnected                                
+     */
+    virtual void SendUdpData( const TInt aLocalPort,
+                              const TInetAddr& aDestAddr,
+                              const TDesC8& aUdpData,
+                              const TUint aDscp,
+                              TRequestStatus& aStatus ) = 0;
+    
+    /**
+     * Cancels sending.
+     */
+    virtual void CancelSend() = 0;
+    
+    /**
+     * Starts to receive UDP data. Completes when data is available or error
+     * has occured. 
+     *
+     * @param aUdpData Received UDP data (returned)
+     * @param aSrcAddr Source IP address/port (returned)
+     * @param aLocalPort Local port (returned)
+     * @param aStatus Completion status (returned)
+     *                  -KErrDisconnected if connection is disconnected
+     */
+    virtual void ReceiveUdpData( HBufC8*& aUdpData,
+                                 TInetAddr& aSrcAddr,
+                                 TInt& aLocalPort,
+                                 TRequestStatus& aStatus  ) = 0;
+    
+    /**
+     * Cancels receive request.
+     */
+    virtual void CancelReceive() = 0;
+
+    /**
+     * Clears data which has been received.
+     */
+    virtual void ClearReceivedData() = 0;
+    
+    /**
+     * Stops receiving. Clears data which has been received.
+     */
+    virtual void StopReceive() = 0;
+    
+    /**
+     * Gets local IP address of interface.
+     *
+     * @param aLocalIp Local IP address (returned)
+     * @return Error status. KErrNotFound if address is not found.
+     */
+    virtual TInt GetLocalAddress( TInetAddr& aLocalIp ) = 0;
+    };
+
+
+#endif // M_IKEDATAINTERFACE_H