-/* $Id: ntobj.c,v 1.13 2003/06/02 10:03:52 ekohl Exp $
- *
- * COPYRIGHT: See COPYING in the top level directory
- * PROJECT: ReactOS kernel
- * FILE: ntoskrnl/ob/ntobj.c
- * PURPOSE: User mode interface to object manager
- * PROGRAMMER: David Welch (welch@cwcom.net)
- * UPDATE HISTORY:
- * 10/06/98: Created
+/* $Id$
+ *
+ * COPYRIGHT: See COPYING in the top level directory
+ * PROJECT: ReactOS kernel
+ * FILE: ntoskrnl/ob/ntobj.c
+ * PURPOSE: User mode interface to object manager
+ *
+ * PROGRAMMERS: David Welch (welch@cwcom.net)
*/
/* INCLUDES *****************************************************************/
-#include <ddk/ntddk.h>
-#include <internal/ob.h>
-#include <internal/id.h>
-
+#include <ntoskrnl.h>
#define NDEBUG
#include <internal/debug.h>
/**********************************************************************
* NAME EXPORTED
* NtSetInformationObject
- *
+ *
* DESCRIPTION
*
* ARGUMENTS
*/
NTSTATUS STDCALL
NtSetInformationObject (IN HANDLE ObjectHandle,
- IN CINT ObjectInformationClass,
+ IN OBJECT_INFORMATION_CLASS ObjectInformationClass,
IN PVOID ObjectInformation,
IN ULONG Length)
{
- UNIMPLEMENTED;
-}
+ PVOID Object;
+ NTSTATUS Status;
+ PAGED_CODE();
-/*Very, very, very new implementation. Test it!
+ if (ObjectInformationClass != ObjectHandleInformation)
+ return STATUS_INVALID_INFO_CLASS;
- Probably we should add meaning to QueryName in POBJECT_TYPE, no matter if we know
- the correct parameters or not. For FILE_OBJECTs, it would probably look like the code
- for ObjectNameInformation below. You give it a POBJECT and a PUNICODE_STRING, and it
- returns the full path in the PUNICODE_STRING
+ if (Length != sizeof (OBJECT_HANDLE_ATTRIBUTE_INFORMATION))
+ return STATUS_INFO_LENGTH_MISMATCH;
+
+ Status = ObReferenceObjectByHandle (ObjectHandle,
+ 0,
+ NULL,
+ (KPROCESSOR_MODE)KeGetPreviousMode (),
+ &Object,
+ NULL);
+ if (!NT_SUCCESS (Status))
+ {
+ return Status;
+ }
+
+ Status = ObpSetHandleAttributes (ObjectHandle,
+ (POBJECT_HANDLE_ATTRIBUTE_INFORMATION)ObjectInformation);
+
+ ObDereferenceObject (Object);
+
+ return Status;
+}
- If we don't do it this way, we should anyway add switches and separate functions to handle
- the different object types*/
/**********************************************************************
* NAME EXPORTED
* NtQueryObject
- *
+ *
* DESCRIPTION
*
* ARGUMENTS
*/
NTSTATUS STDCALL
NtQueryObject (IN HANDLE ObjectHandle,
- IN CINT ObjectInformationClass,
+ IN OBJECT_INFORMATION_CLASS ObjectInformationClass,
OUT PVOID ObjectInformation,
IN ULONG Length,
- OUT PULONG ReturnLength)
+ OUT PULONG ResultLength OPTIONAL)
{
- POBJECT_TYPE_INFORMATION typeinfo;
+ OBJECT_HANDLE_INFORMATION HandleInfo;
POBJECT_HEADER ObjectHeader;
+ ULONG InfoLength;
PVOID Object;
NTSTATUS Status;
+ PAGED_CODE();
+
Status = ObReferenceObjectByHandle (ObjectHandle,
0,
NULL,
- KeGetPreviousMode(),
+ (KPROCESSOR_MODE)KeGetPreviousMode(),
&Object,
- NULL);
+ &HandleInfo);
if (!NT_SUCCESS (Status))
{
return Status;
switch (ObjectInformationClass)
{
+ case ObjectBasicInformation:
+ InfoLength = sizeof(OBJECT_BASIC_INFORMATION);
+ if (Length != sizeof(OBJECT_BASIC_INFORMATION))
+ {
+ Status = STATUS_INFO_LENGTH_MISMATCH;
+ }
+ else
+ {
+ POBJECT_BASIC_INFORMATION BasicInfo;
+
+ BasicInfo = (POBJECT_BASIC_INFORMATION)ObjectInformation;
+ BasicInfo->Attributes = HandleInfo.HandleAttributes;
+ BasicInfo->GrantedAccess = HandleInfo.GrantedAccess;
+ BasicInfo->HandleCount = ObjectHeader->HandleCount;
+ BasicInfo->PointerCount = ObjectHeader->PointerCount;
+ BasicInfo->PagedPoolUsage = 0; /* FIXME*/
+ BasicInfo->NonPagedPoolUsage = 0; /* FIXME*/
+ BasicInfo->NameInformationLength = 0; /* FIXME*/
+ BasicInfo->TypeInformationLength = 0; /* FIXME*/
+ BasicInfo->SecurityDescriptorLength = 0; /* FIXME*/
+ if (ObjectHeader->Type == ObSymbolicLinkType)
+ {
+ BasicInfo->CreateTime.QuadPart =
+ ((PSYMLINK_OBJECT)Object)->CreateTime.QuadPart;
+ }
+ else
+ {
+ BasicInfo->CreateTime.QuadPart = (ULONGLONG)0;
+ }
+ Status = STATUS_SUCCESS;
+ }
+ break;
+
case ObjectNameInformation:
Status = ObQueryNameString (Object,
(POBJECT_NAME_INFORMATION)ObjectInformation,
Length,
- ReturnLength);
+ &InfoLength);
break;
case ObjectTypeInformation:
- typeinfo = (POBJECT_TYPE_INFORMATION)ObjectInformation;
- if (Length!=sizeof(OBJECT_TYPE_INFORMATION))
- return STATUS_INVALID_BUFFER_SIZE;
+#if 0
+// InfoLength =
+ if (Length != sizeof(OBJECT_TYPE_INFORMATION))
+ {
+ Status = STATUS_INVALID_BUFFER_SIZE;
+ }
+ else
+ {
+ POBJECT_TYPE_INFORMATION TypeInfo;
+ TypeInfo = (POBJECT_TYPE_INFORMATION)ObjectInformation;
// FIXME: Is this supposed to only be the header's Name field?
// Can somebody check/verify this?
RtlCopyUnicodeString(&typeinfo->Name,&ObjectHeader->Name);
break;
}
- RtlCopyUnicodeString(&typeinfo->Type,&ObjectHeader->ObjectType->TypeName);
+ RtlCopyUnicodeString(&typeinfo->Type,&ObjectHeader->Type->TypeName);
//This should be info from the object header, not the object type, right?
typeinfo->TotalHandles = ObjectHeader-> HandleCount;
- typeinfo->ReferenceCount = ObjectHeader -> RefCount;
+ typeinfo->ReferenceCount = ObjectHeader -> PointerCount;
+ }
+#endif
+ Status = STATUS_NOT_IMPLEMENTED;
break;
- default:
+ case ObjectAllTypesInformation:
Status = STATUS_NOT_IMPLEMENTED;
break;
+
+ case ObjectHandleInformation:
+ InfoLength = sizeof (OBJECT_HANDLE_ATTRIBUTE_INFORMATION);
+ if (Length != sizeof (OBJECT_HANDLE_ATTRIBUTE_INFORMATION))
+ {
+ Status = STATUS_INFO_LENGTH_MISMATCH;
+ }
+ else
+ {
+ Status = ObpQueryHandleAttributes (ObjectHandle,
+ (POBJECT_HANDLE_ATTRIBUTE_INFORMATION)ObjectInformation);
+ }
+ break;
+
+ default:
+ Status = STATUS_INVALID_INFO_CLASS;
+ break;
}
- ObDereferenceObject(Object);
+ ObDereferenceObject (Object);
+
+ if (ResultLength != NULL)
+ *ResultLength = InfoLength;
return Status;
}
+/**********************************************************************
+ * NAME PRIVATE
+ * ObpSetPermanentObject/2
+ *
+ * DESCRIPTION
+ * Fast general purpose routine to set an object's permanent
+ * attribute, given a pointer to the object's body.
+ */
+VOID FASTCALL
+ObpSetPermanentObject (IN PVOID ObjectBody, IN BOOLEAN Permanent)
+{
+ POBJECT_HEADER ObjectHeader;
+
+ ObjectHeader = BODY_TO_HEADER(ObjectBody);
+ ASSERT (ObjectHeader->PointerCount > 0);
+ if (Permanent)
+ {
+ ObjectHeader->Flags |= OB_FLAG_PERMANENT;
+ }
+ else
+ {
+ ObjectHeader->Flags &= ~OB_FLAG_PERMANENT;
+ if (ObjectHeader->HandleCount == 0 && HEADER_TO_OBJECT_NAME(ObjectHeader)->Directory)
+ {
+ /* Remove the object from the namespace */
+ ObpRemoveEntryDirectory(ObjectHeader);
+ }
+ }
+}
+
/**********************************************************************
* NAME EXPORTED
- * ObMakeTemporaryObject
- *
+ * ObMakeTemporaryObject/1
+ *
* DESCRIPTION
*
* ARGUMENTS
* RETURN VALUE
*
* REVISIONS
+ *
+ * @implemented
*/
VOID STDCALL
-ObMakeTemporaryObject (IN PVOID ObjectBody)
+ObMakeTemporaryObject(IN PVOID ObjectBody)
{
- POBJECT_HEADER ObjectHeader;
-
- ObjectHeader = BODY_TO_HEADER(ObjectBody);
- ObjectHeader->Permanent = FALSE;
+ ObpSetPermanentObject (ObjectBody, FALSE);
}
/**********************************************************************
* NAME EXPORTED
* NtMakeTemporaryObject
- *
+ *
* DESCRIPTION
*
* ARGUMENTS
*
* REVISIONS
*/
-NTSTATUS
-STDCALL
-NtMakeTemporaryObject (IN HANDLE Handle)
+NTSTATUS STDCALL
+NtMakeTemporaryObject(IN HANDLE ObjectHandle)
{
- POBJECT_HEADER ObjectHeader;
- PVOID Object;
+ PVOID ObjectBody;
NTSTATUS Status;
- Status = ObReferenceObjectByHandle(Handle,
+ PAGED_CODE();
+
+ Status = ObReferenceObjectByHandle(ObjectHandle,
0,
NULL,
- KernelMode,
- & Object,
+ (KPROCESSOR_MODE)KeGetPreviousMode(),
+ &ObjectBody,
NULL);
if (Status != STATUS_SUCCESS)
{
return Status;
}
- ObjectHeader = BODY_TO_HEADER(Object);
- ObjectHeader->Permanent = FALSE;
+ ObpSetPermanentObject (ObjectBody, FALSE);
+
+ ObDereferenceObject(ObjectBody);
+
+ return STATUS_SUCCESS;
+}
+
+
+/**********************************************************************
+ * NAME EXPORTED
+ * NtMakePermanentObject/1
+ *
+ * DESCRIPTION
+ *
+ * ARGUMENTS
+ *
+ * RETURN VALUE
+ *
+ * REVISIONS
+ *
+ * @implemented
+ */
+NTSTATUS STDCALL
+NtMakePermanentObject(IN HANDLE ObjectHandle)
+{
+ PVOID ObjectBody;
+ NTSTATUS Status;
+
+ PAGED_CODE();
+
+ Status = ObReferenceObjectByHandle(ObjectHandle,
+ 0,
+ NULL,
+ (KPROCESSOR_MODE)KeGetPreviousMode(),
+ &ObjectBody,
+ NULL);
+ if (Status != STATUS_SUCCESS)
+ {
+ return Status;
+ }
+
+ ObpSetPermanentObject (ObjectBody, TRUE);
- ObDereferenceObject(Object);
+ ObDereferenceObject(ObjectBody);
return STATUS_SUCCESS;
}
projects / reactos.git / blobdiff