reactos/ntoskrnl/se/access.c

   1 /* $Id: access.c,v 1.4 2003/07/11 01:23:16 royce Exp $
   2  *
   3  * COPYRIGHT:         See COPYING in the top level directory
   4  * PROJECT:           ReactOS kernel
   5  * PURPOSE:           Access rights handling functions
   6  * FILE:              ntoskrnl/se/access.c
   7  * PROGRAMER:         Eric Kohl <ekohl@rz-online.de>
   8  * REVISION HISTORY:
   9  *                    07/04/2000: Created
  10  */
  11
  12 /* INCLUDES *****************************************************************/
  13
  14 #include <ddk/ntddk.h>
  15
  16
  17 /* FUNCTIONS ***************************************************************/
  18
  19 BOOLEAN
  20 STDCALL
  21 RtlAreAllAccessesGranted (
  22         ACCESS_MASK     GrantedAccess,
  23         ACCESS_MASK     DesiredAccess
  24         )
  25 {
  26         return ((GrantedAccess & DesiredAccess) == DesiredAccess);
  27 }
  28
  29
  30 /*
  31  * @implemented
  32  */
  33 BOOLEAN
  34 STDCALL
  35 RtlAreAnyAccessesGranted (
  36         ACCESS_MASK     GrantedAccess,
  37         ACCESS_MASK     DesiredAccess
  38         )
  39 {
  40         return ((GrantedAccess & DesiredAccess) != 0);
  41 }
  42
  43
  44 /*
  45  * @implemented
  46  */
  47 VOID
  48 STDCALL
  49 RtlMapGenericMask (
  50         PACCESS_MASK            AccessMask,
  51         PGENERIC_MAPPING        GenericMapping
  52         )
  53 {
  54         if (*AccessMask & GENERIC_READ)
  55                 *AccessMask |= GenericMapping->GenericRead;
  56
  57         if (*AccessMask & GENERIC_WRITE)
  58                 *AccessMask |= GenericMapping->GenericWrite;
  59
  60         if (*AccessMask & GENERIC_EXECUTE)
  61                 *AccessMask |= GenericMapping->GenericExecute;
  62
  63         if (*AccessMask & GENERIC_ALL)
  64                 *AccessMask |= GenericMapping->GenericAll;
  65
  66         *AccessMask &= 0x0FFFFFFF;
  67 }
  68
  69 /* EOF */