Re: [ros-dev] Re:[ros-svn] [ion] 12748: Fix incorrect LPC Object export...we export pointers not the object itself! Also remove more TIME stuf

[Emanuele Aliberti]

Hi Hartmut:

>   I've add some code to my test driver:
>
>   Status = ZwCreateEvent(&hEvent, EVENT_ALL_ACCESS, NULL, 
>  NotificationEvent, FALSE);
>   DPRINT1("%x\n", Status);
>   if (NT_SUCCESS(Status))
>   {
>      Status = ObReferenceObjectByHandle(hEvent, EVENT_ALL_ACCESS, 
>  (POBJECT_TYPE)ExEventObjectType, KernelMode, (PVOID*)&Event, NULL);
>      DPRINT1("%x\n", Status);
>      if (NT_SUCCESS(Status))
>      {
>         ObDereferenceObject((PVOID)Event);
>      }
>      Status = ObReferenceObjectByHandle(hEvent, EVENT_ALL_ACCESS, 
>  (POBJECT_TYPE)&ExEventObjectType, KernelMode, (PVOID*)&Event, NULL);
>      DPRINT1("%x\n", Status);
>      if (NT_SUCCESS(Status))
>      {
>         ObDereferenceObject((PVOID)Event);
>      }
>      ZwClose(hEvent);
>   }
>
>  The result on W2K is:
>
>  (memtest.c:185) 0
>  (memtest.c:189) 0
>  (memtest.c: 195) c0000024 -> STATUS_OBJECT_TYPE_MISMATCH
>
>  This means Alex's changes and the other object type initialisations 
>  are correct.
>  
Compiled with DDK headers or w32api's ones?

Before making LpcPortObjectType static, which you and Filip show is 
actually wrong with respect to DDK headers, my first try was allocating 
the *OBJECT_TYPE calling

ExAllocatePoolWithTag(NonPagedPool,sizeof(OBJECT_TYPE),TAG_OBJECT_TYPE);

which should be fine.


Emanuele