mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 18:15:11 +00:00
- [FORMATTING]:
- Get rid of ObpGetHandleCountByHandleTable and ObpGetNextHandleByProcessCount. - Add some function comment headers. - Move ObMakeTemporaryObject, NtMakeTemporaryObject, NtMakePermanentObject to oblife.c - Move ObpDeleteNameCheck to obname.c svn path=/trunk/; revision=22285
This commit is contained in:
Alex Ionescu
parent
1f896561d9
commit
1891e7787c
4 changed files with 274 additions and 266 deletions
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@ -34,6 +34,8 @@ typedef struct _OBP_CLOSE_HANDLE_CONTEXT
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(HANDLE)((ULONG_PTR)(Handle) & ~KERNEL_HANDLE_FLAG)
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(HANDLE)((ULONG_PTR)(Handle) & ~KERNEL_HANDLE_FLAG)
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#define ObMarkHandleAsKernelHandle(Handle) \
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#define ObMarkHandleAsKernelHandle(Handle) \
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(HANDLE)((ULONG_PTR)(Handle) | KERNEL_HANDLE_FLAG)
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(HANDLE)((ULONG_PTR)(Handle) | KERNEL_HANDLE_FLAG)
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#define ObpGetHandleCountByHandleTable(HandleTable) \
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((PHANDLE_TABLE)HandleTable)->HandleCount
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extern KEVENT ObpDefaultObject;
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extern KEVENT ObpDefaultObject;
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extern POBJECT_TYPE ObpTypeObjectType;
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extern POBJECT_TYPE ObpTypeObjectType;
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@ -131,10 +133,6 @@ ObDuplicateObject(
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ULONG Options
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ULONG Options
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);
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);
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ULONG
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NTAPI
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ObpGetHandleCountByHandleTable(PHANDLE_TABLE HandleTable);
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VOID
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VOID
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NTAPI
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NTAPI
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ObQueryDeviceMapInformation(
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ObQueryDeviceMapInformation(
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@ -25,170 +25,8 @@ PHANDLE_TABLE ObpKernelHandleTable = NULL;
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#define OBTRACE DPRINT
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#define OBTRACE DPRINT
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#endif
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#endif
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/* UGLY FUNCTIONS ************************************************************/
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ULONG
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NTAPI
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ObpGetHandleCountByHandleTable(PHANDLE_TABLE HandleTable)
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{
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return HandleTable->HandleCount;
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}
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VOID
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ObpGetNextHandleByProcessCount(PSYSTEM_HANDLE_TABLE_ENTRY_INFO pshi,
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PEPROCESS Process,
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int Count)
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{
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ULONG P;
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// KIRQL oldIrql;
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// pshi->HandleValue;
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/*
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This will never work with ROS! M$, I guess uses 0 -> 65535.
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Ros uses 0 -> 4294967295!
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*/
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P = (ULONG) Process->UniqueProcessId;
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pshi->UniqueProcessId = (USHORT) P;
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// KeAcquireSpinLock( &Process->HandleTable.ListLock, &oldIrql );
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// pshi->GrantedAccess;
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// pshi->Object;
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// pshi->TypeIndex;
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// pshi->HandleAttributes;
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// KeReleaseSpinLock( &Process->HandleTable.ListLock, oldIrql );
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return;
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}
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/* PRIVATE FUNCTIONS *********************************************************/
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/* PRIVATE FUNCTIONS *********************************************************/
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/*++
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* @name ObpDeleteNameCheck
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*
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* The ObpDeleteNameCheck routine checks if a named object should be
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* removed from the object directory namespace.
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*
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* @param Object
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* Pointer to the object to check for possible removal.
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*
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* @return None.
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*
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* @remarks An object is removed if the following 4 criteria are met:
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* 1) The object has 0 handles open
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* 2) The object is in the directory namespace and has a name
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* 3) The object is not permanent
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*
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*--*/
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VOID
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NTAPI
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ObpDeleteNameCheck(IN PVOID Object)
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{
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POBJECT_HEADER ObjectHeader;
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OBP_LOOKUP_CONTEXT Context;
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POBJECT_HEADER_NAME_INFO ObjectNameInfo;
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POBJECT_TYPE ObjectType;
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/* Get object structures */
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ObjectHeader = OBJECT_TO_OBJECT_HEADER(Object);
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ObjectNameInfo = OBJECT_HEADER_TO_NAME_INFO(ObjectHeader);
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ObjectType = ObjectHeader->Type;
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/*
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* Check if the handle count is 0, if the object is named,
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* and if the object isn't a permanent object.
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*/
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if (!(ObjectHeader->HandleCount) &&
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(ObjectNameInfo) &&
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(ObjectNameInfo->Name.Length) &&
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!(ObjectHeader->Flags & OB_FLAG_PERMANENT))
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{
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/* Make sure it's still inserted */
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Context.Directory = ObjectNameInfo->Directory;
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Context.DirectoryLocked = TRUE;
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Object = ObpLookupEntryDirectory(ObjectNameInfo->Directory,
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&ObjectNameInfo->Name,
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0,
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FALSE,
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&Context);
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if (Object)
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{
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/* First delete it from the directory */
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ObpDeleteEntryDirectory(&Context);
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/* Now check if we have a security callback */
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if (ObjectType->TypeInfo.SecurityRequired)
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{
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/* Call it */
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ObjectType->TypeInfo.SecurityProcedure(Object,
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DeleteSecurityDescriptor,
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0,
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NULL,
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NULL,
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&ObjectHeader->
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SecurityDescriptor,
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ObjectType->
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TypeInfo.PoolType,
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NULL);
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}
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/* Free the name */
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ExFreePool(ObjectNameInfo->Name.Buffer);
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RtlInitEmptyUnicodeString(&ObjectNameInfo->Name, NULL, 0);
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/* Clear the current directory and de-reference it */
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ObDereferenceObject(ObjectNameInfo->Directory);
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ObDereferenceObject(Object);
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ObjectNameInfo->Directory = NULL;
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}
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}
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}
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/*++
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* @name ObpSetPermanentObject
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*
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* The ObpSetPermanentObject routine makes an sets or clears the permanent
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* flag of an object, thus making it either permanent or temporary.
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*
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* @param ObjectBody
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* Pointer to the object to make permanent or temporary.
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*
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* @param Permanent
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* Flag specifying which operation to perform.
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*
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* @return None.
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*
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* @remarks If the object is being made temporary, then it will be checked
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* as a candidate for immediate removal from the namespace.
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*
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*--*/
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VOID
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FASTCALL
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ObpSetPermanentObject(IN PVOID ObjectBody,
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IN BOOLEAN Permanent)
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{
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POBJECT_HEADER ObjectHeader;
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/* Get the header */
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ObjectHeader = OBJECT_TO_OBJECT_HEADER(ObjectBody);
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if (Permanent)
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{
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/* Set it to permanent */
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ObjectHeader->Flags |= OB_FLAG_PERMANENT;
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}
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else
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{
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/* Remove the flag */
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ObjectHeader->Flags &= ~OB_FLAG_PERMANENT;
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/* Check if we should delete the object now */
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ObpDeleteNameCheck(ObjectBody);
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}
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}
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/*++
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/*++
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* @name ObpDecrementHandleCount
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* @name ObpDecrementHandleCount
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*
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*
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@ -680,6 +518,22 @@ ObpCreateHandle(IN OB_OPEN_REASON OpenReason,
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return STATUS_INSUFFICIENT_RESOURCES;
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return STATUS_INSUFFICIENT_RESOURCES;
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}
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}
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/*++
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* @name ObpCloseHandle
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*
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* The ObpCloseHandle routine <FILLMEIN>
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*
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* @param Handle
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* <FILLMEIN>.
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*
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* @param AccessMode
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* <FILLMEIN>.
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*
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* @return <FILLMEIN>.
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*
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* @remarks None.
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*
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*--*/
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NTSTATUS
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NTSTATUS
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NTAPI
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NTAPI
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ObpCloseHandle(IN HANDLE Handle,
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ObpCloseHandle(IN HANDLE Handle,
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@ -1448,27 +1302,6 @@ ObFindHandleForObject(IN PEPROCESS Process,
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return STATUS_UNSUCCESSFUL;
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return STATUS_UNSUCCESSFUL;
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}
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}
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/*++
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* @name ObMakeTemporaryObject
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* @implemented NT4
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*
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* The ObMakeTemporaryObject routine <FILLMEIN>
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*
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* @param ObjectBody
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* <FILLMEIN>
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*
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* @return None.
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*
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* @remarks None.
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*
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*--*/
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VOID
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NTAPI
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ObMakeTemporaryObject(IN PVOID ObjectBody)
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{
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ObpSetPermanentObject (ObjectBody, FALSE);
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}
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/*++
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/*++
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* @name ObInsertObject
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* @name ObInsertObject
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* @implemented NT4
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* @implemented NT4
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@ -1753,6 +1586,23 @@ ObInsertObject(IN PVOID Object,
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return Status;
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return Status;
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}
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}
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/*++
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* @name ObCloseHandle
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* @implemented NT5.1
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*
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* The ObCloseHandle routine <FILLMEIN>
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*
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* @param Handle
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* <FILLMEIN>.
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*
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* @param AccessMode
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* <FILLMEIN>.
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*
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* @return <FILLMEIN>.
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*
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* @remarks None.
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*
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*--*/
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NTSTATUS
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NTSTATUS
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NTAPI
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NTAPI
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ObCloseHandle(IN HANDLE Handle,
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ObCloseHandle(IN HANDLE Handle,
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@ -1764,6 +1614,20 @@ ObCloseHandle(IN HANDLE Handle,
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return ObpCloseHandle(Handle, AccessMode);
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return ObpCloseHandle(Handle, AccessMode);
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}
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}
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/*++
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* @name NtClose
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* @implemented NT4
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*
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* The NtClose routine <FILLMEIN>
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*
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* @param Handle
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* <FILLMEIN>.
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*
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* @return <FILLMEIN>.
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*
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* @remarks None.
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*
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*--*/
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NTSTATUS
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NTSTATUS
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NTAPI
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NTAPI
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NtClose(IN HANDLE Handle)
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NtClose(IN HANDLE Handle)
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@ -1954,83 +1818,4 @@ NtDuplicateObject (IN HANDLE SourceProcessHandle,
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return Status;
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return Status;
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}
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}
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/*++
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* @name NtMakeTemporaryObject
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* @implemented NT4
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*
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* The NtMakeTemporaryObject routine <FILLMEIN>
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*
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* @param ObjectHandle
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* <FILLMEIN>
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*
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* @return STATUS_SUCCESS or appropriate error value.
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*
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* @remarks None.
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*
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*--*/
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NTSTATUS
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NTAPI
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NtMakeTemporaryObject(IN HANDLE ObjectHandle)
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{
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PVOID ObjectBody;
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NTSTATUS Status;
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PAGED_CODE();
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/* Reference the object for DELETE access */
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Status = ObReferenceObjectByHandle(ObjectHandle,
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DELETE,
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NULL,
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KeGetPreviousMode(),
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&ObjectBody,
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NULL);
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if (Status != STATUS_SUCCESS) return Status;
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/* Set it as temporary and dereference it */
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ObpSetPermanentObject(ObjectBody, FALSE);
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ObDereferenceObject(ObjectBody);
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return STATUS_SUCCESS;
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}
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/*++
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* @name NtMakePermanentObject
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* @implemented NT4
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*
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* The NtMakePermanentObject routine <FILLMEIN>
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*
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* @param ObjectHandle
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* <FILLMEIN>
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*
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* @return STATUS_SUCCESS or appropriate error value.
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*
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* @remarks None.
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*
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*--*/
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NTSTATUS
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NTAPI
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NtMakePermanentObject(IN HANDLE ObjectHandle)
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{
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PVOID ObjectBody;
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NTSTATUS Status;
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KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
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PAGED_CODE();
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/* Make sure that the caller has SeCreatePermanentPrivilege */
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Status = SeSinglePrivilegeCheck(SeCreatePermanentPrivilege,
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PreviousMode);
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if (!NT_SUCCESS(Status)) return STATUS_PRIVILEGE_NOT_HELD;
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/* Reference the object */
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Status = ObReferenceObjectByHandle(ObjectHandle,
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0,
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NULL,
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PreviousMode,
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&ObjectBody,
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NULL);
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if (Status != STATUS_SUCCESS) return Status;
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/* Set it as permanent and dereference it */
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ObpSetPermanentObject(ObjectBody, TRUE);
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ObDereferenceObject(ObjectBody);
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return STATUS_SUCCESS;
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}
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/* EOF */
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/* EOF */
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@ -180,6 +180,48 @@ ObpReapObject(IN PVOID Parameter)
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}
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}
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}
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}
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/*++
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* @name ObpSetPermanentObject
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*
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* The ObpSetPermanentObject routine makes an sets or clears the permanent
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* flag of an object, thus making it either permanent or temporary.
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*
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* @param ObjectBody
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* Pointer to the object to make permanent or temporary.
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*
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* @param Permanent
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* Flag specifying which operation to perform.
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*
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* @return None.
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*
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* @remarks If the object is being made temporary, then it will be checked
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* as a candidate for immediate removal from the namespace.
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*
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*--*/
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VOID
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FASTCALL
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ObpSetPermanentObject(IN PVOID ObjectBody,
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IN BOOLEAN Permanent)
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{
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POBJECT_HEADER ObjectHeader;
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/* Get the header */
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ObjectHeader = OBJECT_TO_OBJECT_HEADER(ObjectBody);
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if (Permanent)
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{
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/* Set it to permanent */
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ObjectHeader->Flags |= OB_FLAG_PERMANENT;
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}
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else
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{
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/* Remove the flag */
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ObjectHeader->Flags &= ~OB_FLAG_PERMANENT;
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/* Check if we should delete the object now */
|
||||||
|
ObpDeleteNameCheck(ObjectBody);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
NTSTATUS
|
NTSTATUS
|
||||||
NTAPI
|
NTAPI
|
||||||
ObpCaptureObjectName(IN OUT PUNICODE_STRING CapturedName,
|
ObpCaptureObjectName(IN OUT PUNICODE_STRING CapturedName,
|
||||||
|
|
@ -762,6 +804,108 @@ ObCreateObjectType(IN PUNICODE_STRING TypeName,
|
||||||
return Status;
|
return Status;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/*++
|
||||||
|
* @name ObMakeTemporaryObject
|
||||||
|
* @implemented NT4
|
||||||
|
*
|
||||||
|
* The ObMakeTemporaryObject routine <FILLMEIN>
|
||||||
|
*
|
||||||
|
* @param ObjectBody
|
||||||
|
* <FILLMEIN>
|
||||||
|
*
|
||||||
|
* @return None.
|
||||||
|
*
|
||||||
|
* @remarks None.
|
||||||
|
*
|
||||||
|
*--*/
|
||||||
|
VOID
|
||||||
|
NTAPI
|
||||||
|
ObMakeTemporaryObject(IN PVOID ObjectBody)
|
||||||
|
{
|
||||||
|
/* Call the internal API */
|
||||||
|
ObpSetPermanentObject (ObjectBody, FALSE);
|
||||||
|
}
|
||||||
|
|
||||||
|
/*++
|
||||||
|
* @name NtMakeTemporaryObject
|
||||||
|
* @implemented NT4
|
||||||
|
*
|
||||||
|
* The NtMakeTemporaryObject routine <FILLMEIN>
|
||||||
|
*
|
||||||
|
* @param ObjectHandle
|
||||||
|
* <FILLMEIN>
|
||||||
|
*
|
||||||
|
* @return STATUS_SUCCESS or appropriate error value.
|
||||||
|
*
|
||||||
|
* @remarks None.
|
||||||
|
*
|
||||||
|
*--*/
|
||||||
|
NTSTATUS
|
||||||
|
NTAPI
|
||||||
|
NtMakeTemporaryObject(IN HANDLE ObjectHandle)
|
||||||
|
{
|
||||||
|
PVOID ObjectBody;
|
||||||
|
NTSTATUS Status;
|
||||||
|
PAGED_CODE();
|
||||||
|
|
||||||
|
/* Reference the object for DELETE access */
|
||||||
|
Status = ObReferenceObjectByHandle(ObjectHandle,
|
||||||
|
DELETE,
|
||||||
|
NULL,
|
||||||
|
KeGetPreviousMode(),
|
||||||
|
&ObjectBody,
|
||||||
|
NULL);
|
||||||
|
if (Status != STATUS_SUCCESS) return Status;
|
||||||
|
|
||||||
|
/* Set it as temporary and dereference it */
|
||||||
|
ObpSetPermanentObject(ObjectBody, FALSE);
|
||||||
|
ObDereferenceObject(ObjectBody);
|
||||||
|
return STATUS_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*++
|
||||||
|
* @name NtMakePermanentObject
|
||||||
|
* @implemented NT4
|
||||||
|
*
|
||||||
|
* The NtMakePermanentObject routine <FILLMEIN>
|
||||||
|
*
|
||||||
|
* @param ObjectHandle
|
||||||
|
* <FILLMEIN>
|
||||||
|
*
|
||||||
|
* @return STATUS_SUCCESS or appropriate error value.
|
||||||
|
*
|
||||||
|
* @remarks None.
|
||||||
|
*
|
||||||
|
*--*/
|
||||||
|
NTSTATUS
|
||||||
|
NTAPI
|
||||||
|
NtMakePermanentObject(IN HANDLE ObjectHandle)
|
||||||
|
{
|
||||||
|
PVOID ObjectBody;
|
||||||
|
NTSTATUS Status;
|
||||||
|
KPROCESSOR_MODE PreviousMode = ExGetPreviousMode();
|
||||||
|
PAGED_CODE();
|
||||||
|
|
||||||
|
/* Make sure that the caller has SeCreatePermanentPrivilege */
|
||||||
|
Status = SeSinglePrivilegeCheck(SeCreatePermanentPrivilege,
|
||||||
|
PreviousMode);
|
||||||
|
if (!NT_SUCCESS(Status)) return STATUS_PRIVILEGE_NOT_HELD;
|
||||||
|
|
||||||
|
/* Reference the object */
|
||||||
|
Status = ObReferenceObjectByHandle(ObjectHandle,
|
||||||
|
0,
|
||||||
|
NULL,
|
||||||
|
PreviousMode,
|
||||||
|
&ObjectBody,
|
||||||
|
NULL);
|
||||||
|
if (Status != STATUS_SUCCESS) return Status;
|
||||||
|
|
||||||
|
/* Set it as permanent and dereference it */
|
||||||
|
ObpSetPermanentObject(ObjectBody, TRUE);
|
||||||
|
ObDereferenceObject(ObjectBody);
|
||||||
|
return STATUS_SUCCESS;
|
||||||
|
}
|
||||||
|
|
||||||
/*++
|
/*++
|
||||||
* @name NtQueryObject
|
* @name NtQueryObject
|
||||||
* @implemented NT4
|
* @implemented NT4
|
||||||
|
|
|
||||||
|
|
@ -20,6 +20,87 @@ POBJECT_DIRECTORY ObpTypeDirectoryObject = NULL;
|
||||||
|
|
||||||
/* PRIVATE FUNCTIONS *********************************************************/
|
/* PRIVATE FUNCTIONS *********************************************************/
|
||||||
|
|
||||||
|
/*++
|
||||||
|
* @name ObpDeleteNameCheck
|
||||||
|
*
|
||||||
|
* The ObpDeleteNameCheck routine checks if a named object should be
|
||||||
|
* removed from the object directory namespace.
|
||||||
|
*
|
||||||
|
* @param Object
|
||||||
|
* Pointer to the object to check for possible removal.
|
||||||
|
*
|
||||||
|
* @return None.
|
||||||
|
*
|
||||||
|
* @remarks An object is removed if the following 4 criteria are met:
|
||||||
|
* 1) The object has 0 handles open
|
||||||
|
* 2) The object is in the directory namespace and has a name
|
||||||
|
* 3) The object is not permanent
|
||||||
|
*
|
||||||
|
*--*/
|
||||||
|
VOID
|
||||||
|
NTAPI
|
||||||
|
ObpDeleteNameCheck(IN PVOID Object)
|
||||||
|
{
|
||||||
|
POBJECT_HEADER ObjectHeader;
|
||||||
|
OBP_LOOKUP_CONTEXT Context;
|
||||||
|
POBJECT_HEADER_NAME_INFO ObjectNameInfo;
|
||||||
|
POBJECT_TYPE ObjectType;
|
||||||
|
|
||||||
|
/* Get object structures */
|
||||||
|
ObjectHeader = OBJECT_TO_OBJECT_HEADER(Object);
|
||||||
|
ObjectNameInfo = OBJECT_HEADER_TO_NAME_INFO(ObjectHeader);
|
||||||
|
ObjectType = ObjectHeader->Type;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Check if the handle count is 0, if the object is named,
|
||||||
|
* and if the object isn't a permanent object.
|
||||||
|
*/
|
||||||
|
if (!(ObjectHeader->HandleCount) &&
|
||||||
|
(ObjectNameInfo) &&
|
||||||
|
(ObjectNameInfo->Name.Length) &&
|
||||||
|
!(ObjectHeader->Flags & OB_FLAG_PERMANENT))
|
||||||
|
{
|
||||||
|
/* Make sure it's still inserted */
|
||||||
|
Context.Directory = ObjectNameInfo->Directory;
|
||||||
|
Context.DirectoryLocked = TRUE;
|
||||||
|
Object = ObpLookupEntryDirectory(ObjectNameInfo->Directory,
|
||||||
|
&ObjectNameInfo->Name,
|
||||||
|
0,
|
||||||
|
FALSE,
|
||||||
|
&Context);
|
||||||
|
if (Object)
|
||||||
|
{
|
||||||
|
/* First delete it from the directory */
|
||||||
|
ObpDeleteEntryDirectory(&Context);
|
||||||
|
|
||||||
|
/* Now check if we have a security callback */
|
||||||
|
if (ObjectType->TypeInfo.SecurityRequired)
|
||||||
|
{
|
||||||
|
/* Call it */
|
||||||
|
ObjectType->TypeInfo.SecurityProcedure(Object,
|
||||||
|
DeleteSecurityDescriptor,
|
||||||
|
0,
|
||||||
|
NULL,
|
||||||
|
NULL,
|
||||||
|
&ObjectHeader->
|
||||||
|
SecurityDescriptor,
|
||||||
|
ObjectType->
|
||||||
|
TypeInfo.PoolType,
|
||||||
|
NULL);
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Free the name */
|
||||||
|
ExFreePool(ObjectNameInfo->Name.Buffer);
|
||||||
|
RtlInitEmptyUnicodeString(&ObjectNameInfo->Name, NULL, 0);
|
||||||
|
|
||||||
|
/* Clear the current directory and de-reference it */
|
||||||
|
ObDereferenceObject(ObjectNameInfo->Directory);
|
||||||
|
ObDereferenceObject(Object);
|
||||||
|
ObjectNameInfo->Directory = NULL;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
NTSTATUS
|
NTSTATUS
|
||||||
NTAPI
|
NTAPI
|
||||||
ObFindObject(IN HANDLE RootHandle,
|
ObFindObject(IN HANDLE RootHandle,
|
||||||
|
|
|
||||||
Loading…
Reference in a new issue