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https://github.com/ApfelTeeSaft/reactos.git
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118 lines
2.8 KiB
C
118 lines
2.8 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: include/internal/objmgr.h
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* PURPOSE: Object manager definitions
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* PROGRAMMER: David Welch ([email protected])
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*/
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#ifndef __INCLUDE_INTERNAL_OBJMGR_H
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#define __INCLUDE_INTERNAL_OBJMGR_H
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#include <ddk/types.h>
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typedef struct
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{
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CSHORT Type;
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CSHORT Size;
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} COMMON_BODY_HEADER, *PCOMMON_BODY_HEADER;
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typedef PVOID POBJECT;
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typedef struct _DIRECTORY_OBJECT
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{
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CSHORT Type;
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CSHORT Size;
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/*
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* PURPOSE: Head of the list of our subdirectories
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*/
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LIST_ENTRY head;
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KSPIN_LOCK Lock;
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} DIRECTORY_OBJECT, *PDIRECTORY_OBJECT;
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/*
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* Enumeration of object types
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*/
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enum
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{
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OBJTYP_INVALID,
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OBJTYP_TYPE,
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OBJTYP_DIRECTORY,
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OBJTYP_SYMLNK,
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OBJTYP_DEVICE,
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OBJTYP_THREAD,
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OBJTYP_FILE,
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OBJTYP_PROCESS,
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OBJTYP_SECTION,
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OBJTYP_MAX,
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};
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BOOL ObAddObjectToNameSpace(PUNICODE_STRING path, POBJECT_HEADER Object);
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VOID ObRegisterType(CSHORT id, OBJECT_TYPE* type);
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VOID ObDeleteHandle(HANDLE Handle);
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NTSTATUS ObLookupObject(HANDLE rootdir, PWSTR string, PVOID* Object,
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PWSTR* UnparsedSection, ULONG Attributes);
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PVOID ObCreateObject(PHANDLE Handle,
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ACCESS_MASK DesiredAccess,
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POBJECT_ATTRIBUTES ObjectAttributes,
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POBJECT_TYPE Type);
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VOID ObRemoveEntry(POBJECT_HEADER Header);
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NTSTATUS ObPerformRetentionChecks(POBJECT_HEADER Header);
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/*
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* FUNCTION: Creates an entry within a directory
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* ARGUMENTS:
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* parent = Parent directory
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* object = Header of the object to add
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*/
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VOID ObCreateEntry(PDIRECTORY_OBJECT parent, POBJECT_HEADER object);
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extern inline POBJECT_HEADER BODY_TO_HEADER(PVOID body)
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{
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PCOMMON_BODY_HEADER chdr = (PCOMMON_BODY_HEADER)body;
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return(CONTAINING_RECORD((&(chdr->Type)),OBJECT_HEADER,Type));
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}
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extern inline PVOID HEADER_TO_BODY(POBJECT_HEADER obj)
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{
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return(((void *)obj)+sizeof(OBJECT_HEADER)-sizeof(COMMON_BODY_HEADER));
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}
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#define OBJECT_ALLOC_SIZE(type) (type->NonpagedPoolCharge+sizeof(OBJECT_HEADER)-sizeof(COMMON_BODY_HEADER))
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/*
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* PURPOSE: Defines a handle
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*/
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typedef struct
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{
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PVOID ObjectBody;
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ACCESS_MASK GrantedAccess;
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BOOLEAN Inherit;
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} HANDLE_REP, *PHANDLE_REP;
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PHANDLE_REP ObTranslateHandle(PKPROCESS Process, HANDLE h);
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extern PDIRECTORY_OBJECT NameSpaceRoot;
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VOID ObAddEntryDirectory(PDIRECTORY_OBJECT Parent,
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POBJECT Object,
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PWSTR Name);
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NTSTATUS ObCreateHandle(PEPROCESS Process,
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PVOID ObjectBody,
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ACCESS_MASK GrantedAccess,
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BOOLEAN Inherit,
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PHANDLE Handle);
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VOID ObCreateHandleTable(PEPROCESS Parent,
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BOOLEAN Inherit,
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PEPROCESS Process);
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NTSTATUS ObFindObject(POBJECT_ATTRIBUTES ObjectAttributes,
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PVOID* ReturnedObject,
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PWSTR* RemainingPath);
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ULONG ObGetReferenceCount(PVOID Object);
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ULONG ObGetHandleCount(PVOID Object);
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#endif /* __INCLUDE_INTERNAL_OBJMGR_H */
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