kerneltest/e32test/random/d_entropysources.cpp
author Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com>
Tue, 25 May 2010 14:09:55 +0300
branchRCL_3
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permissions -rw-r--r--
Revision: 201021 Kit: 2010121
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// Copyright (c) 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 the License "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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// e32test\entropysources\d_entropysources.cpp
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// 
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//
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/**
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 @file
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 @internalComponent
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 @test
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*/
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#include <dfcs.h>
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#include <kernel/kernel.h>
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#include <kernel/kern_priv.h>
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#include "kern_test.h"
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#include "d_entropysources.h"
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//---------------------------------------------------------------------------------------------------------------------
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//! @SYMTestCaseID				KBASE-entropysources-2703
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//! @SYMTestType				UT
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//! @SYMTestCaseDesc			Verifies that entropy is contributed to the Secure RNG
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//! @SYMPREQ					PREQ211
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//! @SYMTestPriority			High
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//! @SYMTestActions				
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//! 	1. 	TestReseed: tests that the interval between RNG reseeds is less than KMaxReseedTime, unless the platform is 
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//!         known not to have a viable entropy source.
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//! 		
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//! 
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//! @SYMTestExpectedResults
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//! 	1.	Properties checked:
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//! 		1) checks that there is a valid entropy source contrbuting entropy data.
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//!         2) checks that the entropy collection framework is functioning correctly..
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//! 	
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//---------------------------------------------------------------------------------------------------------------------
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class DEntropySourcesFactory : public DLogicalDevice
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    {
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public:
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    DEntropySourcesFactory();
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    virtual TInt Install();    
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    virtual void GetCaps(TDes8 &aDes) const;
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    virtual TInt Create(DLogicalChannelBase*& aChannel); 
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    };
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class DEntropySources : public DLogicalChannelBase
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    {
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public:
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 	DEntropySources();
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   ~DEntropySources();    
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    void ReseedHook();
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protected:    
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	virtual TInt DoCreate(TInt aUnit, const TDesC8* anInfo, const TVersion& aVer);
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	virtual TInt Request(TInt aReqNo, TAny* a1, TAny* a2);
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private:
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    DThread*        iClient;
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    TClientRequest* iRequest;    
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    };
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// Function to be called from the kernel side code.
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void ReseedHook(TAny* aPtr)
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    {
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	((DEntropySources*)aPtr)->ReseedHook();
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    }
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DECLARE_STANDARD_LDD()
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    {
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     return new DEntropySourcesFactory;
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    }
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//
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// DEntropySourcesFactory
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//
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DEntropySourcesFactory::DEntropySourcesFactory()
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    {
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    // Set version number for this device
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    iVersion = TVersion(0,1,1);
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    // Indicate we don't support units or a PDD
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    iParseMask = 0;
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    }
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TInt DEntropySourcesFactory::Install()
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    {
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    return(SetName(&KEntropySourcesName));
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    }
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void DEntropySourcesFactory::GetCaps(TDes8& aDes) const
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    {
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    // Create a capabilities object
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    TCapsEntropySources caps;
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    caps.iVersion = iVersion;
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    // Write it back to user memory
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    Kern::InfoCopy(aDes,(TUint8*)&caps,sizeof(caps));
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    }
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TInt DEntropySourcesFactory::Create(DLogicalChannelBase*& aChannel)
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    {
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    aChannel = new DEntropySources;
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    if(!aChannel)
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        return KErrNoMemory;
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    return KErrNone;
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    }
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//
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// DEntropySources
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//
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DEntropySources::DEntropySources()
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	{
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    iClient = &Kern::CurrentThread();
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    iClient->Open();
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	}
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DEntropySources::~DEntropySources()
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    {
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	KernTest::Test(KernTest::ERNGReseedHook, NULL, NULL);
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    Kern::SafeClose((DObject*&)iClient, NULL);
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	Kern::DestroyClientRequest(iRequest);
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    }
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TInt DEntropySources::DoCreate(TInt /*aUnit*/, const TDesC8* /*aInfo*/, const TVersion& /*aVer*/)
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	{
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	return Kern::CreateClientRequest(iRequest);
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	}
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TInt DEntropySources::Request(TInt aReqNo, TAny* a1, TAny* a2)
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    {
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    (void)a2;
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    TInt r = KErrNotSupported;
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    switch(aReqNo)
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        {
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        case ~REntropySources::EReseedTest:
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            r = iRequest->SetStatus((TRequestStatus*)a1);
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			if (r!=KErrNone)
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				return r;
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            KernTest::Test(KernTest::ERNGReseedHook, (TAny*)&::ReseedHook, this);            
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            break;
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        }
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    return r;
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    }
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void DEntropySources::ReseedHook()
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    {
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	KernTest::Test(KernTest::ERNGReseedHook, NULL, NULL);
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    Kern::QueueRequestComplete(iClient, iRequest, KErrNone);
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    }