--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/random/t_entropysources.cpp	Fri Mar 12 15:50:11 2010 +0200
@@ -0,0 +1,131 @@
+// Copyright (c) 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:
+// Test suite to check whether the device has good enough entropy sources or not.
+// More the no. of sources, high the quality of the random numbers (least predictable).
+// 
+//
+
+/**
+ @file
+ @internalTechnology
+*/
+
+#define __E32TEST_EXTENSION__
+#include <e32test.h>
+#include <hal.h>
+#include <e32math.h>
+#include "d_entropysources.h"
+
+//---------------------------------------------------------------------------------------------------------------------
+//! @SYMTestCaseID				KBASE-entropysources-2703
+//! @SYMTestType				UT
+//! @SYMTestCaseDesc			Verifies that entropy is contributed to the Secure RNG
+//! @SYMPREQ					PREQ211
+//! @SYMTestPriority			High
+//! @SYMTestActions				
+//! 	1. 	TestReseed: tests that the interval between RNG reseeds is less than KMaxReseedTime, unless the platform is 
+//!         known not to have a viable entropy source.
+//! 		
+//! 
+//! @SYMTestExpectedResults
+//! 	1.	Properties checked:
+//! 		1) checks that there is a valid entropy source contrbuting entropy data.
+//!         2) checks that the entropy collection framework is functioning correctly..
+//! 	
+//---------------------------------------------------------------------------------------------------------------------
+
+// In a worst case scenario, we expect the reseed to happen within ten minutes.
+// This is approximately 1/10 of the actual reseed intervel time (97.8 rounded to => 98).
+// ((2^24 (reseed intervel) * 350 (micro seconds per request)) / 1000000) / 60 => 97.8 minutes.
+//
+const TTimeIntervalMicroSeconds32 KMaxReseedTime = 10 * 60 * 1000000;
+
+REntropySources Ldd;
+
+LOCAL_D RTest test(_L("T_ENTROPYSOURCES"));
+
+LOCAL_C void TestReseed()
+    {    
+    test.Next(_L("Loading test driver"));
+    TInt r = User::LoadLogicalDevice(KEntropySourcesName);
+    test(r==KErrNone || r==KErrAlreadyExists);
+    
+    test.Next(_L("Opening the logical channel"));
+    test_KErrNone(Ldd.Open());
+    
+	RTimer timer;
+	test_KErrNone(timer.CreateLocal());
+
+	test.Next(_L("Testing reseed interval"));
+	// Wait for two reseeds, so we can prove the interval between them is ok
+	for (TInt i=0; i<2; ++i)
+		{
+		// Request notification of the next reseed, with a timeout
+		test.Next(_L("Requesting reseed notification"));
+		TRequestStatus reseed, timeout;
+		Ldd.ReseedTest(reseed);
+		timer.After(timeout, KMaxReseedTime);
+
+		// Prod the RNG to make sure it's not idle, then wait for an event
+		test.Next(_L("Prod RNG and wait"));
+		Math::Random();
+		User::WaitForRequest(reseed, timeout);
+
+		// Check we didn't time out and cancel the timer
+		test_Equal(KRequestPending, timeout.Int());
+		timer.Cancel();
+		User::WaitForRequest(timeout);
+		test_Equal(KErrCancel, timeout.Int());
+		test_KErrNone(reseed.Int());
+		}
+	
+	Ldd.Close();
+
+	User::FreeLogicalDevice(KEntropySourcesName);
+    }
+
+LOCAL_C TBool HardwareRNGPresent()
+    {
+    TInt muid = 0;
+    const TInt r = HAL::Get(HAL::EMachineUid, muid);
+    if (r != KErrNone) return EFalse;;
+    return ((muid != HAL::EMachineUid_X86PC) &&
+            (muid != HAL::EMachineUid_NE1_TB) &&
+            (muid != HAL::EMachineUid_OmapH6) &&
+            (muid != HAL::EMachineUid_OmapZoom) &&
+            (muid != HAL::EMachineUid_Win32Emulator));
+    }
+
+GLDEF_C TInt E32Main()
+	{
+	test.Title();
+	test.Start(_L("Test periodic entropy source"));
+
+	if(HardwareRNGPresent())	
+	    {
+	    __UHEAP_MARK;
+        
+		TestReseed();
+
+        __UHEAP_MARKEND;	    
+	    }
+	else
+	    {
+	    test.Printf(_L("Test skipped, platform is known not to have a periodic entropy source\n"));
+	    }
+	test.End();
+	test.Close();
+	
+	return 0;
+	}