reactos/ntoskrnl/ex/win32k.c

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