reactos/ntoskrnl/se/access.c

   1 /* $Id: access.c,v 1.2 2002/09/07 15:13:06 chorns 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 <ntoskrnl.h>
  15
  16 #define NDEBUG
  17 #include <internal/debug.h>
  18
  19
  20 /* FUNCTIONS ***************************************************************/
  21
  22 BOOLEAN
  23 STDCALL
  24 RtlAreAllAccessesGranted (
  25         ACCESS_MASK     GrantedAccess,
  26         ACCESS_MASK     DesiredAccess
  27         )
  28 {
  29         return ((GrantedAccess & DesiredAccess) == DesiredAccess);
  30 }
  31
  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 VOID
  45 STDCALL
  46 RtlMapGenericMask (
  47         PACCESS_MASK            AccessMask,
  48         PGENERIC_MAPPING        GenericMapping
  49         )
  50 {
  51         if (*AccessMask & GENERIC_READ)
  52                 *AccessMask |= GenericMapping->GenericRead;
  53
  54         if (*AccessMask & GENERIC_WRITE)
  55                 *AccessMask |= GenericMapping->GenericWrite;
  56
  57         if (*AccessMask & GENERIC_EXECUTE)
  58                 *AccessMask |= GenericMapping->GenericExecute;
  59
  60         if (*AccessMask & GENERIC_ALL)
  61                 *AccessMask |= GenericMapping->GenericAll;
  62
  63         *AccessMask &= 0x0FFFFFFF;
  64 }
  65
  66 /* EOF */