reactos/ntoskrnl/ex/win32k.c

   1 /* $Id$
   2  *
   3  * COPYRIGHT:       See COPYING in the top level directory
   4  * PROJECT:         ReactOS kernel
   5  * FILE:            ntoskrnl/ex/win32k.c
   6  * PURPOSE:         Executive Win32 subsystem support
   7  *
   8  * PROGRAMMERS:     Alex Ionescu (alex@relsoft.net) - Moved callbacks to win32k and cleanup.
   9  *                  Casper S. Hornstrup (chorns@users.sourceforge.net)
  10  */
  11
  12 #include <ntoskrnl.h>
  13 #define NDEBUG
  14 #include <internal/debug.h>
  15
  16 #if defined (ALLOC_PRAGMA)
  17 #pragma alloc_text(INIT, ExpWin32kInit)
  18 #endif
  19
  20 /* DATA **********************************************************************/
  21
  22 POBJECT_TYPE ExWindowStationObjectType = NULL;
  23 POBJECT_TYPE ExDesktopObjectType = NULL;
  24
  25 static GENERIC_MAPPING ExpWindowStationMapping =
  26 {
  27     STANDARD_RIGHTS_READ,
  28     STANDARD_RIGHTS_WRITE,
  29     STANDARD_RIGHTS_EXECUTE,
  30     STANDARD_RIGHTS_REQUIRED
  31 };
  32
  33 static GENERIC_MAPPING ExpDesktopMapping =
  34 {
  35     STANDARD_RIGHTS_READ,
  36     STANDARD_RIGHTS_WRITE,
  37     STANDARD_RIGHTS_EXECUTE,
  38     STANDARD_RIGHTS_REQUIRED
  39 };
  40
  41 OB_OPEN_METHOD ExpWindowStationObjectOpen = NULL;
  42 OB_PARSE_METHOD ExpWindowStationObjectParse = NULL;
  43 OB_DELETE_METHOD ExpWindowStationObjectDelete = NULL;
  44 OB_FIND_METHOD ExpWindowStationObjectFind = NULL;
  45 OB_CREATE_METHOD ExpDesktopObjectCreate = NULL;
  46 OB_DELETE_METHOD ExpDesktopObjectDelete = NULL;
  47
  48 /* FUNCTIONS ****************************************************************/
  49
  50 NTSTATUS
  51 STDCALL
  52 ExpWinStaObjectOpen(OB_OPEN_REASON Reason,
  53                     PVOID ObjectBody,
  54                     PEPROCESS Process,
  55                     ULONG HandleCount,
  56                     ACCESS_MASK GrantedAccess)
  57 {
  58     /* Call the Registered Callback */
  59     return ExpWindowStationObjectOpen(Reason,
  60                                       ObjectBody,
  61                                       Process,
  62                                       HandleCount,
  63                                       GrantedAccess);
  64 }
  65
  66 VOID
  67 STDCALL
  68 ExpWinStaObjectDelete(PVOID DeletedObject)
  69 {
  70     /* Call the Registered Callback */
  71     ExpWindowStationObjectDelete(DeletedObject);
  72 }
  73
  74 PVOID
  75 STDCALL
  76 ExpWinStaObjectFind(PVOID WinStaObject,
  77                     PWSTR Name,
  78                     ULONG Attributes)
  79 {
  80     /* Call the Registered Callback */
  81     return ExpWindowStationObjectFind(WinStaObject,
  82                                       Name,
  83                                       Attributes);
  84 }
  85
  86 NTSTATUS
  87 STDCALL
  88 ExpWinStaObjectParse(PVOID Object,
  89                      PVOID *NextObject,
  90                      PUNICODE_STRING FullPath,
  91                      PWSTR *Path,
  92                      ULONG Attributes)
  93 {
  94     /* Call the Registered Callback */
  95     return ExpWindowStationObjectParse(Object,
  96                                        NextObject,
  97                                        FullPath,
  98                                        Path,
  99                                        Attributes);
 100 }
 101
 102 NTSTATUS
 103 STDCALL
 104 ExpDesktopCreate(PVOID ObjectBody,
 105                  PVOID Parent,
 106                  PWSTR RemainingPath,
 107                  struct _OBJECT_ATTRIBUTES* ObjectAttributes)
 108 {
 109     /* Call the Registered Callback */
 110     return ExpDesktopObjectCreate(ObjectBody,
 111                                   Parent,
 112                                   RemainingPath,
 113                                   ObjectAttributes);
 114 }
 115
 116 VOID
 117 STDCALL
 118 ExpDesktopDelete(PVOID DeletedObject)
 119 {
 120     /* Call the Registered Callback */
 121     ExpDesktopObjectDelete(DeletedObject);
 122 }
 123
 124 VOID
 125 INIT_FUNCTION
 126 STDCALL
 127 ExpWin32kInit(VOID)
 128 {
 129     OBJECT_TYPE_INITIALIZER ObjectTypeInitializer;
 130     UNICODE_STRING Name;
 131
 132     DPRINT("Creating window station  Object Type\n");
 133
 134     /* Create the window station Object Type */
 135     RtlZeroMemory(&ObjectTypeInitializer, sizeof(ObjectTypeInitializer));
 136     RtlInitUnicodeString(&Name, L"WindowStation");
 137     ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
 138     ObjectTypeInitializer.GenericMapping = ExpWindowStationMapping;
 139     ObjectTypeInitializer.PoolType = NonPagedPool;
 140     ObjectTypeInitializer.OpenProcedure = ExpWinStaObjectOpen;
 141     ObjectTypeInitializer.DeleteProcedure = ExpWinStaObjectDelete;
 142     ObjectTypeInitializer.ParseProcedure = ExpWinStaObjectParse;
 143     ObpCreateTypeObject(&ObjectTypeInitializer, &Name, &ExWindowStationObjectType);
 144
 145     /* Create desktop object type */
 146     RtlInitUnicodeString(&Name, L"Desktop");
 147     ObjectTypeInitializer.GenericMapping = ExpDesktopMapping;
 148     ObjectTypeInitializer.OpenProcedure = NULL;
 149     ObjectTypeInitializer.DeleteProcedure = ExpDesktopDelete;
 150     ObjectTypeInitializer.ParseProcedure = NULL;
 151
 152     ObpCreateTypeObject(&ObjectTypeInitializer, &Name, &ExDesktopObjectType);
 153 }
 154
 155 /* EOF */