reactos/ntoskrnl/include/internal/ob.h

   1 /*
   2  * COPYRIGHT:         See COPYING in the top level directory
   3  * PROJECT:           ReactOS kernel
   4  * FILE:              include/internal/objmgr.h
   5  * PURPOSE:           Object manager definitions
   6  * PROGRAMMER:        David Welch (welch@mcmail.com)
   7  */
   8
   9 #ifndef __INCLUDE_INTERNAL_OBJMGR_H
  10 #define __INCLUDE_INTERNAL_OBJMGR_H
  11
  12 #define NTOS_MODE_KERNEL
  13 #include <ntos.h>
  14
  15 struct _EPROCESS;
  16
  17 typedef struct
  18 {
  19    CSHORT Type;
  20    CSHORT Size;
  21 } COMMON_BODY_HEADER, *PCOMMON_BODY_HEADER;
  22
  23 typedef PVOID POBJECT;
  24
  25 typedef struct _DIRECTORY_OBJECT
  26 {
  27    CSHORT Type;
  28    CSHORT Size;
  29
  30    /*
  31     * PURPOSE: Head of the list of our subdirectories
  32     */
  33    LIST_ENTRY head;
  34    KSPIN_LOCK Lock;
  35 } DIRECTORY_OBJECT, *PDIRECTORY_OBJECT;
  36
  37
  38 typedef struct _SYMLINK_OBJECT
  39 {
  40   CSHORT Type;
  41   CSHORT Size;
  42   UNICODE_STRING TargetName;
  43   LARGE_INTEGER CreateTime;
  44 } SYMLINK_OBJECT, *PSYMLINK_OBJECT;
  45
  46
  47 typedef struct _TYPE_OBJECT
  48 {
  49   CSHORT Type;
  50   CSHORT Size;
  51
  52   /* pointer to object type data */
  53   POBJECT_TYPE ObjectType;
  54 } TYPE_OBJECT, *PTYPE_OBJECT;
  55
  56
  57 /*
  58  * Enumeration of object types
  59  */
  60 enum
  61 {
  62    OBJTYP_INVALID,
  63    OBJTYP_TYPE,
  64    OBJTYP_DIRECTORY,
  65    OBJTYP_SYMLNK,
  66    OBJTYP_DEVICE,
  67    OBJTYP_THREAD,
  68    OBJTYP_FILE,
  69    OBJTYP_PROCESS,
  70    OBJTYP_SECTION,
  71    OBJTYP_MAX,
  72 };
  73
  74
  75 #define OBJECT_ALLOC_SIZE(ObjectSize) ((ObjectSize)+sizeof(OBJECT_HEADER)-sizeof(COMMON_BODY_HEADER))
  76
  77
  78 extern PDIRECTORY_OBJECT NameSpaceRoot;
  79 extern POBJECT_TYPE ObSymbolicLinkType;
  80
  81
  82 POBJECT_HEADER BODY_TO_HEADER(PVOID body);
  83 PVOID HEADER_TO_BODY(POBJECT_HEADER obj);
  84
  85 VOID ObpAddEntryDirectory(PDIRECTORY_OBJECT Parent,
  86                           POBJECT_HEADER Header,
  87                           PWSTR Name);
  88 VOID ObpRemoveEntryDirectory(POBJECT_HEADER Header);
  89
  90 VOID
  91 ObInitSymbolicLinkImplementation(VOID);
  92
  93
  94 NTSTATUS ObCreateHandle(struct _EPROCESS* Process,
  95                         PVOID ObjectBody,
  96                         ACCESS_MASK GrantedAccess,
  97                         BOOLEAN Inherit,
  98                         PHANDLE Handle);
  99 VOID ObCreateHandleTable(struct _EPROCESS* Parent,
 100                          BOOLEAN Inherit,
 101                          struct _EPROCESS* Process);
 102 NTSTATUS ObFindObject(POBJECT_ATTRIBUTES ObjectAttributes,
 103                       PVOID* ReturnedObject,
 104                       PUNICODE_STRING RemainingPath,
 105                       POBJECT_TYPE ObjectType);
 106 VOID ObCloseAllHandles(struct _EPROCESS* Process);
 107 VOID ObDeleteHandleTable(struct _EPROCESS* Process);
 108
 109 NTSTATUS
 110 ObDeleteHandle(PEPROCESS Process,
 111                HANDLE Handle,
 112                PVOID *ObjectBody);
 113
 114 NTSTATUS
 115 ObpQueryHandleAttributes(HANDLE Handle,
 116                          POBJECT_HANDLE_ATTRIBUTE_INFORMATION HandleInfo);
 117
 118 NTSTATUS
 119 ObpSetHandleAttributes(HANDLE Handle,
 120                        POBJECT_HANDLE_ATTRIBUTE_INFORMATION HandleInfo);
 121
 122 NTSTATUS
 123 ObpCreateTypeObject(POBJECT_TYPE ObjectType);
 124
 125 ULONG
 126 ObGetObjectHandleCount(PVOID Object);
 127 NTSTATUS
 128 ObDuplicateObject(PEPROCESS SourceProcess,
 129                   PEPROCESS TargetProcess,
 130                   HANDLE SourceHandle,
 131                   PHANDLE TargetHandle,
 132                   ACCESS_MASK DesiredAccess,
 133                   BOOLEAN InheritHandle,
 134                   ULONG Options);
 135
 136 ULONG
 137 ObpGetHandleCountbyHandleTable(PHANDLE_TABLE HandleTable);
 138
 139
 140 #endif /* __INCLUDE_INTERNAL_OBJMGR_H */