--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natplugins/natptraversalcontroller/inc/cnattraversalsession.h	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,183 @@
+/*
+* Copyright (c) 2007 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 CNATTRAVERSALSESSION_H
+#define CNATTRAVERSALSESSION_H
+
+//  INCLUDES
+#include <e32base.h>
+#include <es_sock.h>
+#include <in_sock.h>
+#include <securesocket.h>
+#include <uri8.h>
+#include <stringpool.h>
+#include "natfwstunclient.h"
+#include "natfwstunbinding.h"
+
+// FORWARD DECLARATIONS
+//class CSIPHeaderBase;
+class MSTUNClientObserver;
+class MSIPNATBindingObserver;
+class MSIPNATTraversalRequestObserver;
+class MNATTraversalSocketManager;
+class CNATTraversalConfig;
+class CNATBinding;
+class CNATBindingRefresher;
+
+// CLASS DECLARATION
+/**
+* NAT Traversal session
+*/
+class CNATTraversalSession : public CBase
+    {
+    public:  // Constructors and destructor
+
+        static CNATTraversalSession* NewL(
+            CDeltaTimer& aDeltaTimer,
+            RSocketServ& aSocketServ,
+            RConnection& aConnection,
+            const TInetAddr& aLocalAddr,
+            const TInetAddr& aNextHopAddr,
+            CNATTraversalConfig* aConfig,
+            MSTUNClientObserver& aObserver,
+            MNATTraversalSocketManager& aSocketManager );
+
+        static CNATTraversalSession* NewLC(
+            CDeltaTimer& aDeltaTimer,
+            RSocketServ& aSocketServ,
+            RConnection& aConnection,
+            const TInetAddr& aLocalAddr,
+            const TInetAddr& aNextHopAddr,
+            CNATTraversalConfig* aConfig,
+            MSTUNClientObserver& aObserver,
+            MNATTraversalSocketManager& aSocketManager );
+
+        ~CNATTraversalSession();
+
+    public: // New functions
+
+        TBool HasSTUNClient(const CSTUNClient& aClient) const;
+
+        const TDesC8& Domain() const;
+
+        TUint32 IapId() const;
+
+        void UpdateNextHop(const TInetAddr& aNextHopAddr);
+
+        TBool HasBindings() const;
+
+        TBool HasBinding(const MSIPNATBindingObserver* aObserver) const;
+
+        void InitCompletedL();
+
+        void InitFailed( TInt aError );
+
+        TBool AddressResolvedL( const CBinding& aBinding );
+
+        TBool BindingFailed(
+            const CBinding& aBinding,
+            TInt aError );
+
+        CNATBinding& CreateNATBindingL(
+            TUint32 aRequestId,
+            RSocket& aSocket,
+            MSIPNATBindingObserver& aBindingObserver,
+            MSIPNATTraversalRequestObserver& aRequestObserver,
+            TBool& aAsyncCallInitiated );
+
+        void RefreshNATBindingL(
+            RSocket& aSocket,
+            const MSIPNATBindingObserver* aBindingObserver,
+            TBool& aMaintainPersistentConnection,
+            TBool& aHandled );
+
+        void RefreshNATBindingL(
+            CSecureSocket& aSecureSocket,
+            const MSIPNATBindingObserver* aBindingObserver,
+            TBool& aMaintainPersistentConnection,
+            TBool& aHandled );
+
+        void SocketIdle(
+            TBool aIdle,
+            RSocket& aSocket );
+
+        void SocketIdle(
+            TBool aIdle,
+            CSecureSocket& aSocket );
+
+        void DataReceivedL(
+            const TDesC8& aData,
+            const RSocket& aSocket,
+            TBool& aHandled );
+
+        TBool RemoveBinding( TUint32 aRequestId );
+
+        TBool RemoveBinding( const MSIPNATBindingObserver& aObserver );
+
+        void DetachConfig();
+
+    private: // Second phase constructors
+
+        CNATTraversalSession(
+            const TInetAddr& aLocalAddr,
+            const TInetAddr& aNextHopAddr,
+            CDeltaTimer& aDeltaTimer,
+            MNATTraversalSocketManager& aSocketManager );
+
+        void ConstructL(
+            RSocketServ& aSocketServ,
+            RConnection& aConnection,
+            CNATTraversalConfig* aConfig,
+            MSTUNClientObserver& aObserver );
+
+    private: // New functions
+
+        TUint Protocol( RSocket& aSocket ) const;
+
+        TInt RefreshInterval( TUint aProtocol ) const;
+
+        TInt FindBindingIndex(
+            const MSIPNATBindingObserver* aBindingObserver ) const;
+
+        void CreateRefresherL(
+            CNATBinding& aBinding,
+            RSocket& aSocket,
+            TBool& aMaintainPersistentConnection );
+
+        template<class T> void SocketIdleImpl( TBool aIdle, T& aSocket );
+
+        TBool IsBehindNAT(const CNATBinding& aBinding) const;
+
+        TBool IsPrivateAddress(const TInetAddr& aAddr) const;
+
+    private: // Data
+
+        TInetAddr iLocalAddr;
+        TInetAddr iNextHopAddr;
+        CDeltaTimer& iDeltaTimer;
+        CNATTraversalConfig* iConfig;
+        CSTUNClient* iSTUNClient;
+        MNATTraversalSocketManager& iSocketManager;
+        RPointerArray<CNATBinding> iBindings;
+
+    friend class UT_CNATTraversalSession;
+    friend class UT_CNATTraversalController;
+    };
+
+#endif // CNATTRAVERSALSESSION_H
+
+// End of File