ntoskrnl.exe: Add partial ObReferenceObjectByHandle implementation.
Signed-off-by: Jacek Caban <jacek@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>
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@ -275,6 +275,13 @@ void *alloc_kernel_object( POBJECT_TYPE type, SIZE_T size, LONG ref )
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return header + 1;
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}
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/* FIXME: Use ObReferenceObject instead. */
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static void reference_kernel_object( void *obj )
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{
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struct object_header *header = (struct object_header*)obj - 1;
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InterlockedIncrement( &header->ref );
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}
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/* FIXME: Use ObDereferenceObject instead. */
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static void dereference_kernel_object( void *obj )
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{
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@ -288,11 +295,66 @@ static void ObReferenceObject( void *obj )
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TRACE( "(%p): stub\n", obj );
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}
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static NTSTATUS kernel_object_from_handle( HANDLE handle, POBJECT_TYPE type, void **ret )
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{
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char buf[256];
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OBJECT_TYPE_INFORMATION *type_info = (OBJECT_TYPE_INFORMATION *)buf;
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ULONG size;
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void *obj;
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NTSTATUS status;
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status = NtQueryObject(handle, ObjectTypeInformation, buf, sizeof(buf), &size);
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if (status) return status;
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if (!!RtlCompareUnicodeStrings(type->name, strlenW(type->name), type_info->TypeName.Buffer,
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type_info->TypeName.Length / sizeof(WCHAR), FALSE))
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return STATUS_OBJECT_TYPE_MISMATCH;
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FIXME( "semi-stub: returning new %s object instance\n", debugstr_w(type->name) );
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if (type->constructor)
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obj = type->constructor( handle );
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else
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{
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obj = alloc_kernel_object( type, 0, 0 );
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FIXME( "No constructor for type %s returning empty %p object\n", debugstr_w(type->name), obj );
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}
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if (!obj) return STATUS_NO_MEMORY;
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TRACE( "%p -> %p\n", handle, obj );
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*ret = obj;
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* ObReferenceObjectByHandle (NTOSKRNL.EXE.@)
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*/
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NTSTATUS WINAPI ObReferenceObjectByHandle( HANDLE handle, ACCESS_MASK access,
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POBJECT_TYPE type,
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KPROCESSOR_MODE mode, void **ptr,
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POBJECT_HANDLE_INFORMATION info )
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{
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NTSTATUS status;
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TRACE( "%p %x %p %d %p %p\n", handle, access, type, mode, ptr, info );
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if (mode != KernelMode)
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{
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FIXME("UserMode access not implemented\n");
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return STATUS_NOT_IMPLEMENTED;
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}
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status = kernel_object_from_handle( handle, type, ptr );
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if (!status) reference_kernel_object( *ptr );
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return status;
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}
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static const WCHAR file_type_name[] = {'F','i','l','e',0};
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static struct _OBJECT_TYPE file_type = {
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file_type_name,
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NULL,
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free_kernel_object
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};
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@ -1151,6 +1213,7 @@ static const WCHAR driver_type_name[] = {'D','r','i','v','e','r',0};
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static struct _OBJECT_TYPE driver_type =
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{
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driver_type_name,
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NULL,
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free_driver_object
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};
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@ -1226,6 +1289,7 @@ static const WCHAR device_type_name[] = {'D','e','v','i','c','e',0};
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static struct _OBJECT_TYPE device_type =
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{
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device_type_name,
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NULL,
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free_kernel_object
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};
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@ -2582,22 +2646,6 @@ VOID WINAPI MmUnmapIoSpace( PVOID BaseAddress, SIZE_T NumberOfBytes )
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}
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/***********************************************************************
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* ObReferenceObjectByHandle (NTOSKRNL.EXE.@)
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*/
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NTSTATUS WINAPI ObReferenceObjectByHandle( HANDLE obj, ACCESS_MASK access,
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POBJECT_TYPE type,
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KPROCESSOR_MODE mode, PVOID* ptr,
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POBJECT_HANDLE_INFORMATION info)
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{
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FIXME( "stub: %p %x %p %d %p %p\n", obj, access, type, mode, ptr, info);
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if(ptr)
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*ptr = UlongToHandle(0xdeadbeaf);
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return STATUS_SUCCESS;
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}
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/***********************************************************************
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* ObReferenceObjectByName (NTOSKRNL.EXE.@)
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*/
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@ -23,6 +23,7 @@
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struct _OBJECT_TYPE {
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const WCHAR *name; /* object type name used for type validation */
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void *(*constructor)(HANDLE); /* used for creating an object from server handle */
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void (*release)(void*); /* called when the last reference is released */
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};
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@ -699,14 +699,10 @@ static void test_ob_reference(const WCHAR *test_path)
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ok(!status, "PsCreateSystemThread returned: %#x\n", status);
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status = ObReferenceObjectByHandle(NULL, SYNCHRONIZE, *pExEventObjectType, KernelMode, &obj1, NULL);
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todo_wine
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ok(status == STATUS_INVALID_HANDLE, "ObReferenceObjectByHandle failed: %#x\n", status);
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if (!status) ObDereferenceObject(obj1);
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status = ObReferenceObjectByHandle(event_handle, SYNCHRONIZE, *pIoFileObjectType, KernelMode, &obj1, NULL);
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todo_wine
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ok(status == STATUS_OBJECT_TYPE_MISMATCH, "ObReferenceObjectByHandle returned: %#x\n", status);
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if (!status) ObDereferenceObject(obj1);
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status = ObReferenceObjectByHandle(event_handle, SYNCHRONIZE, *pExEventObjectType, KernelMode, &obj1, NULL);
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ok(!status, "ObReferenceObjectByHandle failed: %#x\n", status);
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@ -718,12 +714,11 @@ static void test_ob_reference(const WCHAR *test_path)
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}
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status = ObReferenceObjectByHandle(event_handle, SYNCHRONIZE, *pIoFileObjectType, KernelMode, &obj2, NULL);
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todo_wine
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ok(status == STATUS_OBJECT_TYPE_MISMATCH, "ObReferenceObjectByHandle returned: %#x\n", status);
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if (!status) ObDereferenceObject(obj2);
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status = ObReferenceObjectByHandle(event_handle, SYNCHRONIZE, *pExEventObjectType, KernelMode, &obj2, NULL);
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ok(!status, "ObReferenceObjectByHandle failed: %#x\n", status);
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todo_wine
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ok(obj1 == obj2, "obj1 != obj2\n");
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ObDereferenceObject(obj1);
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@ -734,6 +729,7 @@ static void test_ob_reference(const WCHAR *test_path)
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status = ObReferenceObjectByHandle(file_handle2, SYNCHRONIZE, *pIoFileObjectType, KernelMode, &obj2, NULL);
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ok(!status, "ObReferenceObjectByHandle failed: %#x\n", status);
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todo_wine
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ok(obj1 == obj2, "obj1 != obj2\n");
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ObDereferenceObject(obj1);
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@ -744,6 +740,7 @@ static void test_ob_reference(const WCHAR *test_path)
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status = ObReferenceObjectByHandle(thread_handle, SYNCHRONIZE, *pPsThreadType, KernelMode, &obj2, NULL);
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ok(!status, "ObReferenceObjectByHandle failed: %#x\n", status);
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todo_wine
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ok(obj1 == obj2, "obj1 != obj2\n");
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ObDereferenceObject(obj1);
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