diff -r 000000000000 -r 1bce908db942 natfw/natfwstunturnclient/inc/cstunclientstate.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natfw/natfwstunturnclient/inc/cstunclientstate.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,111 @@
+/*
+* Copyright (c) 2005 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:    
+*
+*/
+
+
+
+
+#ifndef C_CSTUNCLIENTSTATE_H
+#define C_CSTUNCLIENTSTATE_H
+
+// INCLUDES
+#include <e32base.h>
+
+// FORWARD DECLARATIONS
+class CSTUNClientImplementation;
+class CBinding;
+
+// CLASS DECLARATION
+
+/**
+ *  Base class for CSTUNClientImplementation's states.
+ *
+ *  @lib ?library
+ *  @since S60 ?S60_version *** for example, S60 v3.0
+ */
+class CSTUNClientState : public CBase
+    {
+    public:
+          /**
+        * Destructor
+        */
+        virtual ~CSTUNClientState();
+
+        /**
+        * Resolving STUN server address has succeeded.
+        * @param aContext STUN client context
+        * @param aObtainSharedSecret ETrue if a shared secret must be obtained
+        *        EFalse otherwise
+        */
+        virtual void
+            ResolvingCompletedL( CSTUNClientImplementation& aContext,
+                                 TBool aObtainSharedSecret ) const;
+
+        /**
+        * Resolving STUN server address has failed.
+        * @param aContext STUN client context
+        * @param aError The reason for the failure.
+        */
+        virtual void ResolvingFailed( CSTUNClientImplementation& aContext,
+                                      TInt aError ) const;        
+        
+        /**
+        * A new shared secret has been succesfully obtained.
+        * @param aContext STUN client context
+        */
+        virtual void
+            SharedSecretReceivedL( CSTUNClientImplementation& aContext ) const;
+        
+        /**
+        * Error occurred when trying to obtain a shared secret.
+        * @param aContext STUN client context
+        * @param aError The reason for the failure.
+        */
+        virtual void SharedSecretErrorL( CSTUNClientImplementation& aContext,
+                                         TInt aError ) const;
+
+        /**
+        * Binding requests a shared secret.
+        * @param aContext STUN client context
+        * @param aBinding Binding asking for the shared secret.
+        */
+        virtual void ObtainSharedSecretL( CSTUNClientImplementation& aContext,
+                                           CBinding& aBinding ) const;
+
+        /**
+         * A STUN server has rejected certain username and password.
+         * @param aBinding Binding that was using the username and password.
+         * @param aUsername Username that was rejected
+         * @param aPassword Password that was rejected
+         * @return ETrue if the Binding should retry, EFalse if binding should
+         *           terminate.
+         */
+        virtual TBool
+            SharedSecretRejectedL( CSTUNClientImplementation& aContext,
+                                   const CBinding& aBinding,
+                                   const TDesC8& aUsername,
+                                      const TDesC8& aPassword ) const;
+
+    protected:
+
+        CSTUNClientState();
+
+    private:
+
+        CSTUNClientState( const CSTUNClientState& aState );
+    };
+
+#endif // C_CSTUNCLIENTSTATE_H