--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/kerneltest/e32test/system/t_prot2.cpp Mon Oct 19 15:55:17 2009 +0100
@@ -0,0 +1,164 @@
+// Copyright (c) 1998-2009 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:
+// e32test\system\t_prot2.cpp
+//
+//
+
+#include <e32test.h>
+#include "u32std.h"
+
+const TInt KHeapSize=0x1000;
+
+_LIT(KSecondProcessName,"T_PROT2A");
+_LIT(KSecondProcessDataChunkName,"T_PROT2A*$DAT");
+
+RTest test(_L("T_PROT2"));
+
+LOCAL_C TInt WatcherThread(TAny* aSemaphoreHandle)
+ {
+ RTest wtest(_L("Watcher Thread"));
+ wtest.Title();
+ RThread().SetPriority(EPriorityMuchMore);
+ wtest.Start(_L("Create undertaker"));
+ RUndertaker u;
+ TInt r=u.Create();
+ if (r!=KErrNone)
+ {
+ RProcess me;
+ me.Panic(_L("UNDERTAKER"),r);
+ }
+ RSemaphore sem;
+ sem.SetHandle((TInt)aSemaphoreHandle);
+ sem.Signal();
+ FOREVER
+ {
+ TRequestStatus s;
+ TInt h;
+ u.Logon(s,h);
+ User::WaitForRequest(s);
+ RThread t;
+ t.SetHandle(h);
+ const TDesC& fn=t.FullName();
+ wtest.Printf(_L("Thread %S exited\n"),&fn);
+ const TDesC& cat=t.ExitCategory();
+ wtest.Printf(_L("Exit type %d,%d,%S\n"),t.ExitType(),t.ExitReason(),&cat);
+ t.Close();
+ }
+ }
+
+LOCAL_C void StartWatcherThread()
+ {
+ test.Next(_L("Start watcher thread"));
+ RSemaphore s;
+ TInt r=s.CreateLocal(0);
+ test(r==KErrNone);
+ RThread t;
+ r=t.Create(_L("WatcherThread"),WatcherThread,KDefaultStackSize,KHeapSize,KHeapSize,(TAny*)s.Handle());
+ test(r==KErrNone);
+ t.Resume();
+ s.Wait();
+ s.Close();
+ }
+
+void ExceptionHandler(TExcType)
+ {
+ User::Leave(KErrAbort);
+ }
+
+LOCAL_C TInt RogueThread1(TAny*)
+ {
+ TInt n;
+ TInt m=0;
+ TUint* p=NULL;
+ RChunk c;
+ User::SetExceptionHandler(ExceptionHandler,KExceptionFault);
+ for (n=0; n<100; n++)
+ {
+ User::AfterHighRes(1000); // wait 1ms
+ if (m==0 && !p)
+ {
+ TFindChunk fc(KSecondProcessDataChunkName);
+ TFullName fn;
+ TInt r=fc.Next(fn);
+ if (r!=KErrNone)
+ continue;
+ r=c.Open(fc);
+ if (r!=KErrNone)
+ continue;
+ p=(TUint*)c.Base(); // second process is fixed
+ continue;
+ }
+ if (m==0 && p)
+ {
+ if (c.Size()==0)
+ continue;
+ m++;
+ c.Close();
+ }
+ TRAPD(r,Mem::Fill(p,0x1000,0xc9));
+ if (r==KErrNone)
+ return KErrNone;
+ }
+ User::Panic(_L("NOTFOUND"),m);
+ return KErrNone;
+ }
+
+LOCAL_C void TestLoaderProtection()
+ {
+ test.Next(_L("Create rogue thread"));
+ RThread t;
+ TInt r=t.Create(_L("RogueThread1"),RogueThread1,KDefaultStackSize,KHeapSize,KHeapSize,NULL);
+ test(r==KErrNone);
+ t.SetPriority(EPriorityRealTime); // this should be above the loader
+ TRequestStatus s;
+ t.Logon(s);
+ test(s==KRequestPending);
+ test.Next(_L("Resume rogue thread"));
+ t.Resume();
+
+ test.Next(_L("Create second process"));
+ RProcess p;
+ r=p.Create(KSecondProcessName,KNullDesC);
+ test(r==KErrNone);
+ TRequestStatus s2;
+ p.Logon(s2);
+ test(s2==KRequestPending);
+ test.Next(_L("Resume second process"));
+ p.Resume();
+
+ test.Next(_L("Wait for second process to exit"));
+ User::WaitForRequest(s2);
+ const TDesC& pcat=p.ExitCategory();
+ test.Printf(_L("Exit type %d,%d,%S\n"),p.ExitType(),p.ExitReason(),&pcat);
+ test.Getch();
+
+ test.Next(_L("Wait for rogue thread to exit"));
+ User::WaitForRequest(s);
+ const TDesC& tcat=t.ExitCategory();
+ test.Printf(_L("Exit type %d,%d,%S\n"),t.ExitType(),t.ExitReason(),&tcat);
+ test.Getch();
+ }
+
+GLDEF_C TInt E32Main()
+ {
+ test.Title();
+ test.Start(_L("Testing protection against errant user threads"));
+ RProcess().SetPriority(EPriorityHigh);
+
+ StartWatcherThread();
+ TestLoaderProtection();
+
+ test.End();
+ return KErrNone;
+ }