// Copyright (c) 2007-2009 Nokia Corporation and/or its subsidiary(-ies).+
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// All rights reserved.+
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// This component and the accompanying materials are made available+
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// under the terms of "Eclipse Public License v1.0"+
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// which accompanies this distribution, and is available+
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// at the URL "http://www.eclipse.org/legal/epl-v10.html".+
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//+
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// Initial Contributors:+
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// Nokia Corporation - initial contribution.+
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//+
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// Contributors:+
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//+
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// Description:+
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//+
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+
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#include <f32file.h>+
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#include <ssm/ssmutility.h>+
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#include <ssm/ssmsuscli.h>+
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#include "suspluginloader.h"+
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#include "suspluginframe.h"+
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#include "ssmdebug.h"+
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#include "suspanic.h"+
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+
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_LIT(KRomDriveLetter, "Z:");+
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+
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/**+
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 Loads the specified DLL into an RLibrary. DLL is typechecked and optionally its uid3 can be verified.+
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 If the RLibrariy::iHandle was opened pushed onto and left on the CleanupStack.+
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 */+
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void SusPluginLoader::LoadDllFileLC(RLibrary& aLibrary, const TSsmSupInfo& aSupInfo)+
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	{+
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	//Enforce that plugins can only be loaded from ROM+
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	TBuf<KMaxFileName + 2> filename = aSupInfo.FileName(); //KMaxFileName + KRomDriveLetter().Length()+
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	if( filename.Left(2).CompareF(KRomDriveLetter) )+
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		{+
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		filename.Insert(0, KRomDriveLetter);+
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		}+
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	+
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	const TUid expectedUid3 = aSupInfo.Identity();+
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	DoLoadDllFileLC(aLibrary, filename, expectedUid3);+
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	}+
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+
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/**+
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 */+
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CSusPluginFrame* SusPluginLoader::CreatePluginLC(RLibrary& aLibrary, TInt aNewLOrdinal)+
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	{+
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	+
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	CSusPluginFrame* plugin = SusPluginLoader::DoCreatePluginL(aLibrary, aNewLOrdinal);+
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	CleanupStack::PushL(plugin);+
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#ifdef _DEBUG +
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	TFileName name = aLibrary.FileName(); +
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#endif+
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	DEBUGPRINT2(_L("Utility Plugin [%S] loaded."), &name);	+
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	+
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	plugin->InitializeL();+
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	DEBUGPRINT2(_L("Utility Plugin [%S] initialized."), &name);	+
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	+
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	plugin->StartL();+
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	DEBUGPRINT2(_L("Utility Plugin [%S] started."), &name);	+
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	+
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	return plugin;+
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	}+
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+
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/**+
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 Load the DLL file from the file system.+
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 @leave KErrNotSupported If UID2 of the DLL is not KSsmUtilityPluginDllTypeUid+
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 @leave KErrNotFound If the requested policy DLL file is missing.+
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 @leave KErrBadName If @c aSupInfo contains an Identity different from UID3 of the DLL.+
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 @leave KErrCorrupt Or any other system wide error code that the fileserver can rise.+
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 */+
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void SusPluginLoader::DoLoadDllFileLC(RLibrary& aLibrary, const TDesC& aFileName, TUid aExpectedUid3)+
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	{+
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	const TInt fileErr = aLibrary.Load(aFileName);+
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	CleanupClosePushL(aLibrary);+
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	+
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	//Leave if we couldn't open aLibrary+
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	if (fileErr != KErrNone)+
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		{+
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		DEBUGPRINT3(_L("Failed to load utility plugin DLL named %S, file error: %d"), &aFileName, fileErr);+
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		User::Leave(fileErr);+
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		}+
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	+
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	//Check that the DLL is the SUP type+
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	if (aLibrary.Type()[1] != KSsmUtilityPluginDllTypeUid)+
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		{+
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		DEBUGPRINT4(_L("Wrong type (uid2) in the utility plugin DLL %S. Expected %x found %x"), +
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				&aFileName, KSsmUtilityPluginDllTypeUid, aLibrary.Type()[1]);;+
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		User::Leave(KErrNotSupported);+
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		}+
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	+
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	//If we were given a identity, check that the loaded file conforms+
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	if ( (aExpectedUid3 != KNullUid) && (aExpectedUid3 != aLibrary.Type()[2]) )+
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		{+
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		DEBUGPRINT4(_L("Wrong identity (uid3) in the utility plugin DLL %S. Expected %x found %x"), +
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				&aFileName, aExpectedUid3, aLibrary.Type()[2]);+
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		User::Leave(KErrBadName);+
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		}+
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	} //lint !e1746 suppress parameter 'aExpectedUid3' could be made const reference+
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+
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/**+
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 */+
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CSusPluginFrame* SusPluginLoader::DoCreatePluginL(const RLibrary& aLibrary, TInt aNewLOrdinal)+
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	{+
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	__ASSERT_DEBUG(KNullHandle != aLibrary.Handle(), User::Panic(KPanicSsmSus, EPluginLoaderError1));+
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	+
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	CSusPluginFrame* frame = NULL;+
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	TRAPD(err, frame = CSusPluginFrame::NewL(aLibrary.Lookup(aNewLOrdinal), aNewLOrdinal));+
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#ifdef _DEBUG+
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	if(KErrNone != err)+
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		{+
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		TFileName name = aLibrary.FileName();+
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		DEBUGPRINT4(_L("Specified ordinal function (%d) in DLL %S didn't create a new instance, err=%d."), aNewLOrdinal, &name, err);+
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		}+
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#endif	+
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	SSMLOGLEAVEIFERROR(err);+
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	return frame;+
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	}+
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+
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