diff -r 000000000000 -r bde4ae8d615e os/kernelhwsrv/kerneltest/f32test/plugins/version_2beta/hex/t_hexhook.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/os/kernelhwsrv/kerneltest/f32test/plugins/version_2beta/hex/t_hexhook.cpp	Fri Jun 15 03:10:57 2012 +0200
@@ -0,0 +1,257 @@
+// Copyright (c) 2006-2009 Nokia Corporation and/or its subsidiary(-ies).
+// All rights reserved.
+// This component and the accompanying materials are made available
+// under the terms of the License "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:
+// f32test\plugins\hex\t_hexhook.cpp
+// 
+//
+
+#include "t_hexhook.h"
+#include <f32pluginutils.h>
+#include "hex.h"
+
+_LIT(KHexPluginName, "This is a test plugin which converts binary data to hex");
+
+
+/**
+Leaving New function for the plugin
+@internalComponent
+*/
+CTestHexHook* CTestHexHook::NewL()
+	{
+	return new(ELeave) CTestHexHook;
+	}
+
+
+/**
+Constructor for the plugin
+@internalComponent
+*/
+CTestHexHook::CTestHexHook()
+	{
+	}
+
+
+/**
+The destructor for the test hex plugin hook. 
+@internalComponent
+*/
+CTestHexHook::~CTestHexHook()
+	{
+	iFs.Close();
+	}
+
+/**
+Initialise the hex plugin.
+@internalComponent
+*/
+void CTestHexHook::InitialiseL()
+	{
+	User::LeaveIfError(RegisterIntercept(EFsFileOpen,			EPreIntercept));
+	User::LeaveIfError(RegisterIntercept(EFsFileRead,			EPrePostIntercept));
+//	User::LeaveIfError(RegisterIntercept(EFsFileWrite,			EPreIntercept));
+
+	User::LeaveIfError(iFs.Connect());
+	}
+
+/**
+@internalComponent
+*/
+TInt CTestHexHook::DoRequestL(TFsPluginRequest& aRequest)
+	{
+	TInt err = KErrNotSupported;
+
+	TInt function = aRequest.Function();
+	
+	iDrvNumber = aRequest.DriveNumber();
+
+	switch(function)
+		{
+		case EFsFileOpen:
+			err = HexFileOpen(aRequest);
+			break;
+
+		case EFsFileRead:
+			// Post intercept does nothing except prove that it is possible and that no deadlock occurs.
+			// plugin always calls FileRead() when receiving a EFsFileRead, and so the mesage gets completed
+			// by the plugin and has to be post intercepted by the plugin (if registered to post-intercept the request) 
+			// and any plugins above it.
+
+			if (!(aRequest.IsPostOperation()))
+				err = HexFileRead(aRequest);
+			break;
+
+		default:
+			break;
+		}
+
+	return err;
+	}
+
+
+/**
+@internalComponent
+*/
+TInt CTestHexHook::HexFileOpen(TFsPluginRequest& aRequest)
+	{
+	TFileName fileName;
+
+	
+	
+//	TInt driveNumber = aRequest.DriveNumber();
+	
+	TInt err = GetName(&aRequest, fileName);
+	if(err != KErrNone)
+		return(err);
+	
+//	err = ScanFile(fileName);
+
+	return err;
+	}
+
+
+/**
+@internalComponent
+*/
+TInt CTestHexHook::HexFileRead(TFsPluginRequest& aRequest)
+	{
+	TFileName fileName;
+	
+//	TInt driveNumber = aRequest.DriveNumber();
+	
+	TInt r = GetName(&aRequest, fileName);
+	if(r != KErrNone)
+		return(r);
+
+	TInt len, pos;
+	r = GetFileAccessInfo(&aRequest, len, pos);
+	if (r != KErrNone)
+		return r;
+
+	// if length is ODD, then it can't be hex
+	if (len & 0x01)
+		return KErrCorrupt;
+
+	TInt offset = 0;
+	while(len > 0)
+		{
+		TInt readLen = Min(len<<1, iHexBuf.MaxLength());
+
+		// read from file
+		TPtr8 ptrHex((TUint8*) iHexBuf.Ptr(), readLen, readLen);
+		r = FileRead(aRequest, ptrHex, pos<<1);
+		if (r != KErrNone)
+			return r;
+		readLen = ptrHex.Length();
+		if (readLen == 0)
+			return KErrCompletion;
+
+		TInt binLen = readLen>>1;
+		TPtr8 ptrBin((TUint8*) iBinBuf.Ptr(), binLen, binLen);
+		DeHex(ptrHex, ptrBin);
+
+		// write back to client (may be an app or another plugin)
+		r = ClientWrite(aRequest, ptrBin, offset);
+		offset+= binLen;
+		len-= binLen;
+		pos+= readLen;
+		}
+	
+	return KErrCompletion;
+	}
+
+
+
+/**
+@internalComponent
+*/
+TInt CTestHexHook::HexPluginName(TDes& aName)
+	{
+	aName = KHexPluginName;
+	return KErrNone;
+	}
+
+
+
+
+//factory functions
+
+class CHexHookFactory : public CFsPluginFactory
+	{
+public:
+	CHexHookFactory();
+	virtual TInt Install();			
+	virtual CFsPlugin* NewPluginL();
+	virtual CFsPlugin* NewPluginConnL();
+	virtual TInt UniquePosition();
+	};
+
+/**
+Constructor for the plugin factory
+@internalComponent
+*/
+CHexHookFactory::CHexHookFactory()
+	{
+	}
+
+/**
+Install function for the plugin factory
+@internalComponent
+*/
+TInt CHexHookFactory::Install()
+	{
+	iSupportedDrives = KPluginAutoAttach;
+
+	_LIT(KHexHookName,"HexHook");
+	return(SetName(&KHexHookName));
+	}
+
+/**
+@internalComponent
+*/
+TInt CHexHookFactory::UniquePosition()
+	{
+	return(0x4EC);
+	}
+
+/**
+Plugin factory function
+@internalComponent
+*/
+CFsPlugin* CHexHookFactory::NewPluginL()
+
+	{
+	return CTestHexHook::NewL();
+	}
+
+/**
+Plugin factory function
+@internalComponent
+*/
+CFsPlugin* CHexHookFactory::NewPluginConnL()
+
+	{
+	return CTestHexHook::NewL();
+	}
+
+/**
+Create a new Plugin
+@internalComponent
+*/
+extern "C" {
+
+EXPORT_C CFsPluginFactory* CreateFileSystem()
+	{
+	return(new CHexHookFactory());
+	}
+}
+