mirror of
https://github.com/reactos/reactos.git
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Preliminary fix for NtQueryObject().
svn path=/trunk/; revision=4808
This commit is contained in:
Eric Kohl
parent
05a9cdcf10
commit
813549499b
1 changed files with 225 additions and 136 deletions
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@ -1,4 +1,4 @@
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/* $Id: ntobj.c,v 1.11 2002/09/08 10:23:39 chorns Exp $
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/* $Id: ntobj.c,v 1.12 2003/06/01 15:09:34 ekohl Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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@ -18,58 +18,66 @@
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#define NDEBUG
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#include <internal/debug.h>
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/* FUNCTIONS ************************************************************/
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NTSTATUS
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STDCALL
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NtSetInformationObject (
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IN HANDLE ObjectHandle,
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/**********************************************************************
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* NAME EXPORTED
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* NtSetInformationObject
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*
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* DESCRIPTION
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*
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* ARGUMENTS
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*
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* RETURN VALUE
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*
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* REVISIONS
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*/
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NTSTATUS STDCALL
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NtSetInformationObject (IN HANDLE ObjectHandle,
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IN CINT ObjectInformationClass,
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IN PVOID ObjectInformation,
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IN ULONG Length
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)
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IN ULONG Length)
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{
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UNIMPLEMENTED;
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}
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NTSTATUS
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internalNameBuilder
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(
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POBJECT_HEADER ObjectHeader,
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PUNICODE_STRING string)
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internalNameBuilder(POBJECT_HEADER ObjectHeader,
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PUNICODE_STRING String)
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/* So, what's the purpose of this function?
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It will take any OBJECT_HEADER and traverse the Parent structure up to the root
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and form the name, i.e. this will only work on objects where the Parent/Name fields
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have any meaning (not files) */
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{
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NTSTATUS status;
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NTSTATUS Status;
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if (ObjectHeader->Parent)
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{
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status = internalNameBuilder(BODY_TO_HEADER(ObjectHeader->Parent),string);
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if (status != STATUS_SUCCESS)
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Status = internalNameBuilder(BODY_TO_HEADER(ObjectHeader->Parent),
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String);
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if (Status != STATUS_SUCCESS)
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{
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return status;
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return Status;
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}
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}
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if (ObjectHeader->Name.Buffer)
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{
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status = RtlAppendUnicodeToString(string, L"\\");
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if (status != STATUS_SUCCESS) return status;
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return RtlAppendUnicodeStringToString(string, &ObjectHeader->Name);
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Status = RtlAppendUnicodeToString(String,
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L"\\");
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if (Status != STATUS_SUCCESS)
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return Status;
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return RtlAppendUnicodeStringToString(String,
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&ObjectHeader->Name);
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}
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return STATUS_SUCCESS;
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}
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NTSTATUS
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STDCALL
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NtQueryObject (
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IN HANDLE ObjectHandle,
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IN CINT ObjectInformationClass,
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OUT PVOID ObjectInformation,
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IN ULONG Length,
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OUT PULONG ResultLength
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)
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/*Very, very, very new implementation. Test it!
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Probably we should add meaning to QueryName in POBJECT_TYPE, no matter if we know
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@ -79,8 +87,27 @@ NtQueryObject (
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If we don't do it this way, we should anyway add switches and separate functions to handle
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the different object types*/
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/**********************************************************************
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* NAME EXPORTED
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* NtQueryObject
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*
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* DESCRIPTION
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*
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* ARGUMENTS
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*
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* RETURN VALUE
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*
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* REVISIONS
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*/
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NTSTATUS STDCALL
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NtQueryObject (IN HANDLE ObjectHandle,
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IN CINT ObjectInformationClass,
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OUT PVOID ObjectInformation,
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IN ULONG Length,
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OUT PULONG ReturnLength)
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{
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POBJECT_NAME_INFORMATION nameinfo;
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POBJECT_NAME_INFORMATION NameInfo;
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POBJECT_TYPE_INFORMATION typeinfo;
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PFILE_NAME_INFORMATION filenameinfo;
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PVOID Object;
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@ -91,10 +118,10 @@ NtQueryObject (
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Status = ObReferenceObjectByHandle (ObjectHandle,
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0,
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NULL,
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KernelMode,
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KeGetPreviousMode(),
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&Object,
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NULL);
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if (Status != STATUS_SUCCESS)
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if (!NT_SUCCESS (Status))
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{
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return Status;
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}
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@ -104,41 +131,93 @@ NtQueryObject (
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switch (ObjectInformationClass)
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{
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case ObjectNameInformation:
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if (Length!=sizeof(OBJECT_NAME_INFORMATION)) return STATUS_INVALID_BUFFER_SIZE;
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nameinfo = (POBJECT_NAME_INFORMATION)ObjectInformation;
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(*ResultLength)=Length;
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#if 0
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Status = ObQueryNameString (Object,
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(POBJECT_NAME_INFORMATION)ObjectInformation,
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Length,
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ReturnLength);
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break;
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#endif
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if (ObjectHeader->Type==InternalFileType) // FIXME: Temporary QueryName implementation, or at least separate functions
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if (Length < sizeof(OBJECT_NAME_INFORMATION) + sizeof(WCHAR))
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return STATUS_INVALID_BUFFER_SIZE;
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NameInfo = (POBJECT_NAME_INFORMATION)ObjectInformation;
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*ReturnLength = 0;
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NameInfo->Name.MaximumLength = sizeof(WCHAR);
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NameInfo->Name.Length = 0;
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NameInfo->Name.Buffer = (PWCHAR)((ULONG_PTR)NameInfo + sizeof(OBJECT_NAME_INFORMATION));
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NameInfo->Name.Buffer[0] = 0;
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// FIXME: Temporary QueryName implementation, or at least separate functions
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if (ObjectHeader->Type==InternalFileType)
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{
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NameInfo->Name.MaximumLength = Length - sizeof(OBJECT_NAME_INFORMATION);
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fileob = (PFILE_OBJECT) Object;
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Status = internalNameBuilder(BODY_TO_HEADER(fileob->DeviceObject->Vpb->RealDevice), &nameinfo->Name);
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Status = internalNameBuilder(BODY_TO_HEADER(fileob->DeviceObject->Vpb->RealDevice),
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&NameInfo->Name);
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if (Status != STATUS_SUCCESS)
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{
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ObDereferenceObject(Object);
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return Status;
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NameInfo->Name.MaximumLength = 0;
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break;
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}
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filenameinfo = ExAllocatePool(NonPagedPool,MAX_PATH*sizeof(WCHAR)+sizeof(ULONG));
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IoQueryFileInformation(fileob,FileNameInformation,MAX_PATH*sizeof(WCHAR)+sizeof(ULONG), filenameinfo,NULL);
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Status = RtlAppendUnicodeToString(&(nameinfo->Name), filenameinfo->FileName);
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filenameinfo = ExAllocatePool (NonPagedPool,
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MAX_PATH * sizeof(WCHAR) + sizeof(ULONG));
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if (filenameinfo == NULL)
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{
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NameInfo->Name.MaximumLength = 0;
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Status = STATUS_INSUFFICIENT_RESOURCES;
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break;
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}
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Status = IoQueryFileInformation (fileob,
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FileNameInformation,
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MAX_PATH * sizeof(WCHAR) + sizeof(ULONG),
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filenameinfo,
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NULL);
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if (Status != STATUS_SUCCESS)
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{
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NameInfo->Name.MaximumLength = 0;
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ExFreePool (filenameinfo);
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break;
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}
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Status = RtlAppendUnicodeToString (&(NameInfo->Name),
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filenameinfo->FileName);
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ExFreePool (filenameinfo);
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ObDereferenceObject(Object);
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return Status;
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if (NT_SUCCESS(Status))
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{
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NameInfo->Name.MaximumLength = NameInfo->Name.Length + sizeof(WCHAR);
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*ReturnLength = sizeof(OBJECT_NAME_INFORMATION) + NameInfo->Name.MaximumLength;
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}
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}
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else if (ObjectHeader->Name.Buffer)
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{
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// If it's got a name there, we can probably just make the full path through Name and Parent
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NameInfo->Name.MaximumLength = Length - sizeof(OBJECT_NAME_INFORMATION);
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Status = internalNameBuilder (ObjectHeader,
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&NameInfo->Name);
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if (NT_SUCCESS(Status))
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{
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NameInfo->Name.MaximumLength = NameInfo->Name.Length + sizeof(WCHAR);
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*ReturnLength = sizeof(OBJECT_NAME_INFORMATION) + NameInfo->Name.MaximumLength;
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}
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}
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else
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if (ObjectHeader->Name.Buffer) // If it's got a name there, we can probably just make the full path through Name and Parent
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{
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Status = internalNameBuilder(ObjectHeader, &nameinfo->Name);
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ObDereferenceObject(Object);
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return Status;
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Status = STATUS_NOT_IMPLEMENTED;
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}
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ObDereferenceObject(Object);
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return STATUS_NOT_IMPLEMENTED;
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break;
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case ObjectTypeInformation:
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typeinfo = (POBJECT_TYPE_INFORMATION)ObjectInformation;
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if (Length!=sizeof(OBJECT_TYPE_INFORMATION)) return STATUS_INVALID_BUFFER_SIZE;
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if (Length!=sizeof(OBJECT_TYPE_INFORMATION))
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return STATUS_INVALID_BUFFER_SIZE;
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// FIXME: Is this supposed to only be the header's Name field?
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// Can somebody check/verify this?
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@ -146,25 +225,40 @@ NtQueryObject (
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if (Status != STATUS_SUCCESS)
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{
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ObDereferenceObject(Object);
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return Status;
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break;
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}
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RtlCopyUnicodeString(&typeinfo->Type,&ObjectHeader->ObjectType->TypeName);
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//This should be info from the object header, not the object type, right?
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typeinfo->TotalHandles = ObjectHeader-> HandleCount;
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typeinfo->ReferenceCount = ObjectHeader -> RefCount;
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break;
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ObDereferenceObject(Object);
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return Status;
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default:
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ObDereferenceObject(Object);
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return STATUS_NOT_IMPLEMENTED;
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}
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Status = STATUS_NOT_IMPLEMENTED;
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break;
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}
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ObDereferenceObject(Object);
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return Status;
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}
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/**********************************************************************
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* NAME EXPORTED
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* ObMakeTemporaryObject
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*
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* DESCRIPTION
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*
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* ARGUMENTS
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*
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* RETURN VALUE
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*
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* REVISIONS
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*/
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VOID STDCALL
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ObMakeTemporaryObject (PVOID ObjectBody)
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ObMakeTemporaryObject (IN PVOID ObjectBody)
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{
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POBJECT_HEADER ObjectHeader;
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@ -187,22 +281,18 @@ ObMakeTemporaryObject (PVOID ObjectBody)
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*/
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NTSTATUS
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STDCALL
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NtMakeTemporaryObject (
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HANDLE Handle
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)
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NtMakeTemporaryObject (IN HANDLE Handle)
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{
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POBJECT_HEADER ObjectHeader;
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PVOID Object;
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NTSTATUS Status;
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POBJECT_HEADER ObjectHeader;
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Status = ObReferenceObjectByHandle(
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Handle,
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Status = ObReferenceObjectByHandle(Handle,
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0,
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NULL,
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KernelMode,
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& Object,
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NULL
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);
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NULL);
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if (Status != STATUS_SUCCESS)
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{
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return Status;
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@ -216,5 +306,4 @@ NtMakeTemporaryObject (
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return STATUS_SUCCESS;
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}
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/* EOF */
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