--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/natfw/natfwunsaf_protocols/unsaf_codec/src/natfwunsaftcprelaypacketfactory.cpp	Tue Feb 02 01:04:58 2010 +0200
@@ -0,0 +1,136 @@
+/*
+* Copyright (c) 2006-2007 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:   
+*
+*/
+
+
+
+
+#include <es_sock.h>
+#include "natfwunsaftcprelaypacketfactory.h"
+#include "natfwunsafutils.h"
+
+// -----------------------------------------------------------------------------
+// CNATFWUNSAFTcpRelayPacketFactory::NewL
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CNATFWUNSAFTcpRelayPacketFactory*
+    CNATFWUNSAFTcpRelayPacketFactory::NewL()
+    {
+    CNATFWUNSAFTcpRelayPacketFactory* self =
+        CNATFWUNSAFTcpRelayPacketFactory::NewLC();
+    CleanupStack::Pop(self);
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CNATFWUNSAFTcpRelayPacketFactory::NewLC
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CNATFWUNSAFTcpRelayPacketFactory*
+    CNATFWUNSAFTcpRelayPacketFactory::NewLC()
+    {
+    CNATFWUNSAFTcpRelayPacketFactory* self =
+        new (ELeave) CNATFWUNSAFTcpRelayPacketFactory();
+    CleanupStack::PushL(self);
+    return self;
+    }
+
+// -----------------------------------------------------------------------------
+// CNATFWUNSAFTcpRelayPacketFactory::CNATFWUNSAFTcpRelayPacketFactory
+// -----------------------------------------------------------------------------
+//
+CNATFWUNSAFTcpRelayPacketFactory::CNATFWUNSAFTcpRelayPacketFactory()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CNATFWUNSAFTcpRelayPacketFactory::~CNATFWUNSAFTcpRelayPacketFactory
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CNATFWUNSAFTcpRelayPacketFactory::~CNATFWUNSAFTcpRelayPacketFactory()
+    {
+    }
+
+// -----------------------------------------------------------------------------
+// CNATFWUNSAFTcpRelayPacketFactory::MessageLength
+// -----------------------------------------------------------------------------
+//
+TInt CNATFWUNSAFTcpRelayPacketFactory::MessageLength(
+    const TDesC8& aNATFWUNSAFTcpRelayPacket) const
+    {
+    return CNATFWUNSAFTcpRelayPacket::RelayLength(aNATFWUNSAFTcpRelayPacket);
+    }
+
+// -----------------------------------------------------------------------------
+// CNATFWUNSAFTcpRelayPacketFactory::DecodeHeaderLC
+// Check that the first byte is 0x02 or 0x03. Otherwise this is not a relay
+// packet.
+// -----------------------------------------------------------------------------
+//
+CNATFWUNSAFTcpRelayPacket* CNATFWUNSAFTcpRelayPacketFactory::DecodeHeaderLC(
+    const TDesC8& aNATFWUNSAFTcpRelayPacket) const
+    {
+    __ASSERT_ALWAYS(
+        aNATFWUNSAFTcpRelayPacket.Length() >=
+            CNATFWUNSAFTcpRelayPacket::EFrameSize,
+                User::Leave(KErrArgument));
+    //Last 8 bits are reserved as zeros
+    TUint8 relayType = NATFWUNSAFUtils::HighByte( BigEndian::Get16(
+        aNATFWUNSAFTcpRelayPacket.Mid(
+            CNATFWUNSAFTcpRelayPacket::EFrameTypeOffset).Ptr()));
+
+    __ASSERT_ALWAYS(relayType == CNATFWUNSAFTcpRelayPacket::EFrameTypeStun ||
+        relayType == CNATFWUNSAFTcpRelayPacket::EFrameTypeData,
+            User::Leave(KErrArgument));
+
+    TUint16 dataLength = BigEndian::Get16(aNATFWUNSAFTcpRelayPacket.Mid(
+        CNATFWUNSAFTcpRelayPacket::EFrameLengthOffset).Ptr());
+
+
+    CNATFWUNSAFTcpRelayPacket* relay = CNATFWUNSAFTcpRelayPacket::CreateL(
+        aNATFWUNSAFTcpRelayPacket.Mid(CNATFWUNSAFTcpRelayPacket::EFrameSize,
+             dataLength),static_cast<CNATFWUNSAFTcpRelayPacket::TRelayType>
+                (relayType));
+
+    CleanupStack::PushL(relay);
+    return relay;
+    }
+
+// -----------------------------------------------------------------------------
+// CNATFWUNSAFTcpRelayPacketFactory::DecodeL
+// -----------------------------------------------------------------------------
+//
+EXPORT_C CNATFWUNSAFTcpRelayPacket* CNATFWUNSAFTcpRelayPacketFactory::DecodeL(
+    const TDesC8& aNATFWUNSAFTcpRelayPacket) const
+    {
+    //Decoding the header is all that is needed
+    CNATFWUNSAFTcpRelayPacket* relay =
+        DecodeHeaderLC(aNATFWUNSAFTcpRelayPacket);
+    CleanupStack::Pop(relay);
+    return relay;
+    }
+
+// -----------------------------------------------------------------------------
+// CNATFWUNSAFTcpRelayPacketFactory::CreateL
+// -----------------------------------------------------------------------------
+//
+CNATFWUNSAFTcpRelayPacket* CNATFWUNSAFTcpRelayPacketFactory::CreateL(
+    const CNATFWUNSAFTcpRelayPacket::TRelayType& aType,
+    const TDesC8& aData) const
+    {
+    return CNATFWUNSAFTcpRelayPacket::CreateL(aData, aType);
+    }
+