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 /* DATA **********************************************************************/
  17
  18 POBJECT_TYPE EXPORTED ExWindowStationObjectType = NULL;
  19 POBJECT_TYPE EXPORTED ExDesktopObjectType = NULL;
  20
  21 static GENERIC_MAPPING ExpWindowStationMapping =
  22 {
  23     STANDARD_RIGHTS_READ,
  24     STANDARD_RIGHTS_WRITE,
  25     STANDARD_RIGHTS_EXECUTE,
  26     STANDARD_RIGHTS_REQUIRED
  27 };
  28
  29 static GENERIC_MAPPING ExpDesktopMapping =
  30 {
  31     STANDARD_RIGHTS_READ,
  32     STANDARD_RIGHTS_WRITE,
  33     STANDARD_RIGHTS_EXECUTE,
  34     STANDARD_RIGHTS_REQUIRED
  35 };
  36
  37 OB_OPEN_METHOD ExpWindowStationObjectOpen = NULL;
  38 OB_PARSE_METHOD ExpWindowStationObjectParse = NULL;
  39 OB_DELETE_METHOD ExpWindowStationObjectDelete = NULL;
  40 OB_FIND_METHOD ExpWindowStationObjectFind = NULL;
  41 OB_CREATE_METHOD ExpDesktopObjectCreate = NULL;
  42 OB_DELETE_METHOD ExpDesktopObjectDelete = NULL;
  43
  44 /* FUNCTIONS ****************************************************************/
  45
  46 NTSTATUS
  47 STDCALL
  48 ExpWinStaObjectOpen(OB_OPEN_REASON Reason,
  49                     PVOID ObjectBody,
  50                     PEPROCESS Process,
  51                     ULONG HandleCount,
  52                     ACCESS_MASK GrantedAccess)
  53 {
  54     /* Call the Registered Callback */
  55     return ExpWindowStationObjectOpen(Reason,
  56                                       ObjectBody,
  57                                       Process,
  58                                       HandleCount,
  59                                       GrantedAccess);
  60 }
  61
  62 VOID
  63 STDCALL
  64 ExpWinStaObjectDelete(PVOID DeletedObject)
  65 {
  66     /* Call the Registered Callback */
  67     ExpWindowStationObjectDelete(DeletedObject);
  68 }
  69
  70 PVOID
  71 STDCALL
  72 ExpWinStaObjectFind(PVOID WinStaObject,
  73                     PWSTR Name,
  74                     ULONG Attributes)
  75 {
  76     /* Call the Registered Callback */
  77     return ExpWindowStationObjectFind(WinStaObject,
  78                                       Name,
  79                                       Attributes);
  80 }
  81
  82 NTSTATUS
  83 STDCALL
  84 ExpWinStaObjectParse(PVOID Object,
  85                      PVOID *NextObject,
  86                      PUNICODE_STRING FullPath,
  87                      PWSTR *Path,
  88                      ULONG Attributes)
  89 {
  90     /* Call the Registered Callback */
  91     return ExpWindowStationObjectParse(Object,
  92                                        NextObject,
  93                                        FullPath,
  94                                        Path,
  95                                        Attributes);
  96 }
  97
  98 NTSTATUS
  99 STDCALL
 100 ExpDesktopCreate(PVOID ObjectBody,
 101                  PVOID Parent,
 102                  PWSTR RemainingPath,
 103                  struct _OBJECT_ATTRIBUTES* ObjectAttributes)
 104 {
 105     /* Call the Registered Callback */
 106     return ExpDesktopObjectCreate(ObjectBody,
 107                                   Parent,
 108                                   RemainingPath,
 109                                   ObjectAttributes);
 110 }
 111
 112 VOID
 113 STDCALL
 114 ExpDesktopDelete(PVOID DeletedObject)
 115 {
 116     /* Call the Registered Callback */
 117     ExpDesktopObjectDelete(DeletedObject);
 118 }
 119
 120 VOID
 121 INIT_FUNCTION
 122 STDCALL
 123 ExpWin32kInit(VOID)
 124 {
 125     OBJECT_TYPE_INITIALIZER ObjectTypeInitializer;
 126     UNICODE_STRING Name;
 127
 128     DPRINT("Creating window station  Object Type\n");
 129
 130     /* Create the window station Object Type */
 131     RtlZeroMemory(&ObjectTypeInitializer, sizeof(ObjectTypeInitializer));
 132     RtlInitUnicodeString(&Name, L"WindowStation");
 133     ObjectTypeInitializer.Length = sizeof(ObjectTypeInitializer);
 134     ObjectTypeInitializer.GenericMapping = ExpWindowStationMapping;
 135     ObjectTypeInitializer.PoolType = NonPagedPool;
 136     ObjectTypeInitializer.UseDefaultObject = TRUE;
 137     ObjectTypeInitializer.OpenProcedure = ExpWinStaObjectOpen;
 138     ObjectTypeInitializer.DeleteProcedure = ExpWinStaObjectDelete;
 139     ObjectTypeInitializer.ParseProcedure = ExpWinStaObjectParse;
 140     ObpCreateTypeObject(&ObjectTypeInitializer, &Name, &ExWindowStationObjectType);
 141
 142     /* Create desktop object type */
 143     RtlInitUnicodeString(&Name, L"Desktop");
 144     ObjectTypeInitializer.GenericMapping = ExpDesktopMapping;
 145     ObjectTypeInitializer.OpenProcedure = NULL;
 146     ObjectTypeInitializer.DeleteProcedure = ExpDesktopDelete;
 147     ObjectTypeInitializer.ParseProcedure = NULL;
 148
 149     ObpCreateTypeObject(&ObjectTypeInitializer, &Name, &ExDesktopObjectType);
 150 }
 151
 152 /* EOF */