ntoskrnl/se/luid.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:         See COPYING in the top level directory
   4  * PROJECT:           ReactOS kernel
   5  * PURPOSE:           Security manager
   6  * FILE:              ntoskrnl/se/luid.c
   7  * PROGRAMER:         ?
   8  * REVISION HISTORY:
   9  *                 26/07/98: Added stubs for security functions
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ddk/ntddk.h>
  15
  16 #include <internal/debug.h>
  17
  18 /* GLOBALS *******************************************************************/
  19
  20 static KSPIN_LOCK LuidLock;
  21 static LARGE_INTEGER LuidIncrement;
  22 static LUID Luid;
  23
  24 /* FUNCTIONS *****************************************************************/
  25
  26 VOID
  27 SepInitLuid(VOID)
  28 {
  29   KeInitializeSpinLock(&LuidLock);
  30   Luid.QuadPart = 999;   /* SYSTEM_LUID */
  31   LuidIncrement.QuadPart = 1;
  32 }
  33
  34
  35 NTSTATUS STDCALL
  36 NtAllocateLocallyUniqueId(OUT LUID* LocallyUniqueId)
  37 {
  38   KIRQL oldIrql;
  39   LUID ReturnedLuid;
  40
  41   KeAcquireSpinLock(&LuidLock,
  42                     &oldIrql);
  43   ReturnedLuid = Luid;
  44   Luid = RtlLargeIntegerAdd(Luid,
  45                             LuidIncrement);
  46   KeReleaseSpinLock(&LuidLock,
  47                     oldIrql);
  48   *LocallyUniqueId = ReturnedLuid;
  49
  50   return(STATUS_SUCCESS);
  51 }
  52
  53 #ifndef LIBCAPTIVE
  54
  55 VOID STDCALL
  56 RtlCopyLuid(IN PLUID LuidDest,
  57             IN PLUID LuidSrc)
  58 {
  59   LuidDest->QuadPart = LuidSrc->QuadPart;
  60 }
  61
  62
  63 BOOLEAN STDCALL
  64 RtlEqualLuid(IN PLUID Luid1,
  65              IN PLUID Luid2)
  66 {
  67   return((Luid1->QuadPart == Luid2->QuadPart) ? TRUE : FALSE);
  68 }
  69
  70 #endif /* LIBCAPTIVE */
  71
  72 /* EOF */