ntoskrnl/se/access.c

   1 /* $Id$
   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 BOOLEAN
  31 STDCALL
  32 RtlAreAnyAccessesGranted (
  33         ACCESS_MASK     GrantedAccess,
  34         ACCESS_MASK     DesiredAccess
  35         )
  36 {
  37         return ((GrantedAccess & DesiredAccess) != 0);
  38 }
  39
  40
  41 VOID
  42 STDCALL
  43 RtlMapGenericMask (
  44         PACCESS_MASK            AccessMask,
  45         PGENERIC_MAPPING        GenericMapping
  46         )
  47 {
  48         if (*AccessMask & GENERIC_READ)
  49                 *AccessMask |= GenericMapping->GenericRead;
  50
  51         if (*AccessMask & GENERIC_WRITE)
  52                 *AccessMask |= GenericMapping->GenericWrite;
  53
  54         if (*AccessMask & GENERIC_EXECUTE)
  55                 *AccessMask |= GenericMapping->GenericExecute;
  56
  57         if (*AccessMask & GENERIC_ALL)
  58                 *AccessMask |= GenericMapping->GenericAll;
  59
  60         *AccessMask &= 0x0FFFFFFF;
  61 }
  62
  63 /* EOF */