mirror of
https://github.com/reactos/reactos.git
synced 2024-12-28 18:15:11 +00:00
- Finally fix IoCreateStreamFileObject. I had fixed it a long time ago but back then it was causing regressions. It now properly creates a handle for the FO and sets the right flags.
svn path=/trunk/; revision=22854
This commit is contained in:
Alex Ionescu
parent
ef41fc2623
commit
b450016579
1 changed files with 137 additions and 160 deletions
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@ -24,7 +24,7 @@ SeSetWorldSecurityDescriptor(SECURITY_INFORMATION SecurityInformation,
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PSECURITY_DESCRIPTOR SecurityDescriptor,
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PULONG BufferLength);
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/* INTERNAL FUNCTIONS ********************************************************/
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/* PRIVATE FUNCTIONS *********************************************************/
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NTSTATUS
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NTAPI
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@ -619,6 +619,118 @@ IopCloseFile(IN PEPROCESS Process OPTIONAL,
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IoFreeIrp(Irp);
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}
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NTSTATUS
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NTAPI
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IopQueryAttributesFile(IN POBJECT_ATTRIBUTES ObjectAttributes,
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IN FILE_INFORMATION_CLASS FileInformationClass,
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OUT PVOID FileInformation)
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{
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IO_STATUS_BLOCK IoStatusBlock;
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HANDLE FileHandle;
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NTSTATUS Status;
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KPROCESSOR_MODE AccessMode;
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UNICODE_STRING ObjectName;
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OBJECT_CREATE_INFORMATION ObjectCreateInfo;
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OBJECT_ATTRIBUTES LocalObjectAttributes;
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ULONG BufferSize;
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union
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{
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FILE_BASIC_INFORMATION BasicInformation;
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FILE_NETWORK_OPEN_INFORMATION NetworkOpenInformation;
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}LocalFileInformation;
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if (FileInformationClass == FileBasicInformation)
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{
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BufferSize = sizeof(FILE_BASIC_INFORMATION);
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}
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else if (FileInformationClass == FileNetworkOpenInformation)
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{
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BufferSize = sizeof(FILE_NETWORK_OPEN_INFORMATION);
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}
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else
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{
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return STATUS_INVALID_PARAMETER;
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}
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AccessMode = ExGetPreviousMode();
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if (AccessMode != KernelMode)
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{
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Status = STATUS_SUCCESS;
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_SEH_TRY
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{
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ProbeForWrite(FileInformation,
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BufferSize,
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sizeof(ULONG));
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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if (NT_SUCCESS(Status))
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{
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Status = ObpCaptureObjectAttributes(ObjectAttributes,
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AccessMode,
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FALSE,
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&ObjectCreateInfo,
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&ObjectName);
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}
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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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InitializeObjectAttributes(&LocalObjectAttributes,
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&ObjectName,
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ObjectCreateInfo.Attributes,
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ObjectCreateInfo.RootDirectory,
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ObjectCreateInfo.SecurityDescriptor);
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}
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/* Open the file */
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Status = ZwOpenFile(&FileHandle,
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SYNCHRONIZE | FILE_READ_ATTRIBUTES,
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AccessMode == KernelMode ? ObjectAttributes : &LocalObjectAttributes,
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&IoStatusBlock,
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0,
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FILE_SYNCHRONOUS_IO_NONALERT);
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if (AccessMode != KernelMode)
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{
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ObpReleaseCapturedAttributes(&ObjectCreateInfo);
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if (ObjectName.Buffer) ObpReleaseCapturedName(&ObjectName);
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}
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if (!NT_SUCCESS (Status))
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{
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DPRINT ("ZwOpenFile() failed (Status %lx)\n", Status);
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return Status;
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}
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/* Get file attributes */
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Status = ZwQueryInformationFile(FileHandle,
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&IoStatusBlock,
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AccessMode == KernelMode ? FileInformation : &LocalFileInformation,
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BufferSize,
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FileInformationClass);
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if (!NT_SUCCESS (Status))
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{
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DPRINT ("ZwQueryInformationFile() failed (Status %lx)\n", Status);
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}
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ZwClose(FileHandle);
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if (NT_SUCCESS(Status) && AccessMode != KernelMode)
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{
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_SEH_TRY
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{
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memcpy(FileInformation, &LocalFileInformation, BufferSize);
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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}
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return Status;
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}
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/* FUNCTIONS *****************************************************************/
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@ -1022,41 +1134,16 @@ IoCreateFileSpecifyDeviceObjectHint(OUT PHANDLE FileHandle,
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}
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/*
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* NAME EXPORTED
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* IoCreateStreamFileObject@8
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*
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* DESCRIPTION
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*
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* ARGUMENTS
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* FileObject
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* ?
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*
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* DeviceObject
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* ?
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*
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* RETURN VALUE
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*
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* NOTE
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*
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* REVISIONS
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*
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* @implemented
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*/
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PFILE_OBJECT
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STDCALL
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IoCreateStreamFileObject(PFILE_OBJECT FileObject,
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PDEVICE_OBJECT DeviceObject)
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PFILE_OBJECT
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NTAPI
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IoCreateStreamFileObject(IN PFILE_OBJECT FileObject,
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IN PDEVICE_OBJECT DeviceObject)
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{
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PFILE_OBJECT CreatedFileObject;
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NTSTATUS Status;
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/* FIXME: This function should call ObInsertObject. The "Lite" version
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doesnt. This function is also called from IoCreateFile for some
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reason. These hacks need to be removed.
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*/
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DPRINT("IoCreateStreamFileObject(FileObject 0x%p, DeviceObject 0x%p)\n",
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FileObject, DeviceObject);
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HANDLE FileHandle;
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PAGED_CODE();
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/* Create the File Object */
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@ -1066,33 +1153,35 @@ IoCreateStreamFileObject(PFILE_OBJECT FileObject,
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KernelMode,
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NULL,
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sizeof(FILE_OBJECT),
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0,
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sizeof(FILE_OBJECT),
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0,
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(PVOID*)&CreatedFileObject);
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if (!NT_SUCCESS(Status))
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{
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DPRINT1("Could not create FileObject\n");
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return (NULL);
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}
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if (!NT_SUCCESS(Status)) return (NULL);
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/* Choose Device Object */
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if (FileObject) DeviceObject = FileObject->DeviceObject;
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DPRINT("DeviceObject 0x%p\n", DeviceObject);
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/* HACK */
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DeviceObject = IoGetAttachedDevice(DeviceObject);
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/* Set File Object Data */
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RtlZeroMemory(CreatedFileObject, sizeof(FILE_OBJECT));
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CreatedFileObject->DeviceObject = DeviceObject;
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CreatedFileObject->Vpb = DeviceObject->Vpb;
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CreatedFileObject->Type = IO_TYPE_FILE;
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CreatedFileObject->Flags |= FO_STREAM_FILE;
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CreatedFileObject->Size = sizeof(FILE_OBJECT);
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CreatedFileObject->Flags = FO_STREAM_FILE;
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/* Initialize Lock and Event */
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KeInitializeEvent(&CreatedFileObject->Event, NotificationEvent, FALSE);
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KeInitializeEvent(&CreatedFileObject->Lock, SynchronizationEvent, TRUE);
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/* Initialize the wait event */
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KeInitializeEvent(&CreatedFileObject->Event, SynchronizationEvent, FALSE);
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/* Return file */
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/* Insert it to create a handle for it */
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Status = ObInsertObject(CreatedFileObject,
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NULL,
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FILE_READ_DATA,
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1,
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(PVOID*)&CreatedFileObject,
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&FileHandle);
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CreatedFileObject->Flags |= FO_HANDLE_CREATED;
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/* Close the extra handle and return file */
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NtClose(FileHandle);
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return CreatedFileObject;
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}
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@ -1440,118 +1529,6 @@ NtOpenFile(PHANDLE FileHandle,
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0);
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}
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NTSTATUS
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IopQueryAttributesFile(IN POBJECT_ATTRIBUTES ObjectAttributes,
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IN FILE_INFORMATION_CLASS FileInformationClass,
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OUT PVOID FileInformation)
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{
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IO_STATUS_BLOCK IoStatusBlock;
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HANDLE FileHandle;
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NTSTATUS Status;
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KPROCESSOR_MODE AccessMode;
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UNICODE_STRING ObjectName;
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OBJECT_CREATE_INFORMATION ObjectCreateInfo;
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OBJECT_ATTRIBUTES LocalObjectAttributes;
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ULONG BufferSize;
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union
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{
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FILE_BASIC_INFORMATION BasicInformation;
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FILE_NETWORK_OPEN_INFORMATION NetworkOpenInformation;
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}LocalFileInformation;
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if (FileInformationClass == FileBasicInformation)
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{
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BufferSize = sizeof(FILE_BASIC_INFORMATION);
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}
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else if (FileInformationClass == FileNetworkOpenInformation)
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{
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BufferSize = sizeof(FILE_NETWORK_OPEN_INFORMATION);
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}
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else
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{
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return STATUS_INVALID_PARAMETER;
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}
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AccessMode = ExGetPreviousMode();
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if (AccessMode != KernelMode)
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{
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Status = STATUS_SUCCESS;
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_SEH_TRY
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{
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ProbeForWrite(FileInformation,
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BufferSize,
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sizeof(ULONG));
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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if (NT_SUCCESS(Status))
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{
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Status = ObpCaptureObjectAttributes(ObjectAttributes,
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AccessMode,
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FALSE,
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&ObjectCreateInfo,
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&ObjectName);
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}
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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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InitializeObjectAttributes(&LocalObjectAttributes,
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&ObjectName,
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ObjectCreateInfo.Attributes,
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ObjectCreateInfo.RootDirectory,
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ObjectCreateInfo.SecurityDescriptor);
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}
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/* Open the file */
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Status = ZwOpenFile(&FileHandle,
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SYNCHRONIZE | FILE_READ_ATTRIBUTES,
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AccessMode == KernelMode ? ObjectAttributes : &LocalObjectAttributes,
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&IoStatusBlock,
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0,
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FILE_SYNCHRONOUS_IO_NONALERT);
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if (AccessMode != KernelMode)
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{
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ObpReleaseCapturedAttributes(&ObjectCreateInfo);
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if (ObjectName.Buffer) ObpReleaseCapturedName(&ObjectName);
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}
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if (!NT_SUCCESS (Status))
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{
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DPRINT ("ZwOpenFile() failed (Status %lx)\n", Status);
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return Status;
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}
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/* Get file attributes */
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Status = ZwQueryInformationFile(FileHandle,
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&IoStatusBlock,
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AccessMode == KernelMode ? FileInformation : &LocalFileInformation,
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BufferSize,
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FileInformationClass);
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if (!NT_SUCCESS (Status))
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{
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DPRINT ("ZwQueryInformationFile() failed (Status %lx)\n", Status);
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}
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ZwClose(FileHandle);
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if (NT_SUCCESS(Status) && AccessMode != KernelMode)
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{
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_SEH_TRY
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{
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memcpy(FileInformation, &LocalFileInformation, BufferSize);
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}
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_SEH_HANDLE
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{
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Status = _SEH_GetExceptionCode();
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}
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_SEH_END;
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}
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return Status;
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}
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NTSTATUS
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STDCALL
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NtQueryAttributesFile(IN POBJECT_ATTRIBUTES ObjectAttributes,
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