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[CDFS] Delete the old CDFS driver.

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This commit is contained in:
Pierre Schweitzer 2018-08-21 12:27:35 +02:00
parent a4554c07b0
commit 5795254933
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297
drivers/filesystems/cdfs/create.c
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@ -1,297 +0,0 @@
/*
* ReactOS kernel
* Copyright (C) 2002, 2003, 2004 ReactOS Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: drivers/filesystems/cdfs/cdfs.c
* PURPOSE: CDROM (ISO 9660) filesystem driver
* PROGRAMMER: Art Yerkes
* Eric Kohl
*/
/* INCLUDES *****************************************************************/
#include "cdfs.h"
#define NDEBUG
#include <debug.h>
/* FUNCTIONS ****************************************************************/
static NTSTATUS
CdfsMakeAbsoluteFilename(PFILE_OBJECT FileObject,
PUNICODE_STRING RelativeFileName,
PUNICODE_STRING AbsoluteFileName)
{
USHORT Length;
PFCB Fcb;
NTSTATUS Status;
DPRINT("try related for %wZ\n", RelativeFileName);
Fcb = FileObject->FsContext;
ASSERT(Fcb);
/* verify related object is a directory and target name
don't start with \. */
if ((Fcb->Entry.FileFlags & FILE_FLAG_DIRECTORY) == 0 ||
(RelativeFileName->Length >= sizeof(WCHAR) &&
RelativeFileName->Buffer[0] == L'\\'))
{
return STATUS_INVALID_PARAMETER;
}
/* construct absolute path name */
Length = Fcb->PathName.Length +
sizeof(WCHAR) +
RelativeFileName->Length +
sizeof(WCHAR);
AbsoluteFileName->Length = 0;
AbsoluteFileName->MaximumLength = Length;
AbsoluteFileName->Buffer = ExAllocatePoolWithTag(NonPagedPool, Length, CDFS_FILENAME_TAG);
if (AbsoluteFileName->Buffer == NULL)
{
return STATUS_INSUFFICIENT_RESOURCES;
}
Status = RtlAppendUnicodeStringToString(AbsoluteFileName,
&Fcb->PathName);
if (!NT_SUCCESS(Status))
{
RtlFreeUnicodeString(AbsoluteFileName);
return Status;
}
if (!CdfsFCBIsRoot(Fcb))
{
Status = RtlAppendUnicodeToString(AbsoluteFileName,
L"\\");
if (!NT_SUCCESS(Status))
{
RtlFreeUnicodeString(AbsoluteFileName);
return Status;
}
}
Status = RtlAppendUnicodeStringToString(AbsoluteFileName,
RelativeFileName);
if (!NT_SUCCESS(Status))
{
RtlFreeUnicodeString(AbsoluteFileName);
return Status;
}
return STATUS_SUCCESS;
}
/*
* FUNCTION: Opens a file
*/
static NTSTATUS
CdfsOpenFile(PDEVICE_EXTENSION DeviceExt,
PFILE_OBJECT FileObject,
PUNICODE_STRING FileName)
{
PFCB ParentFcb;
PFCB Fcb;
NTSTATUS Status;
UNICODE_STRING AbsFileName;
DPRINT("CdfsOpenFile(%p, %p, %wZ)\n", DeviceExt, FileObject, FileName);
if (FileObject->RelatedFileObject)
{
DPRINT("Converting relative filename to absolute filename\n");
Status = CdfsMakeAbsoluteFilename(FileObject->RelatedFileObject,
FileName,
&AbsFileName);
if (!NT_SUCCESS(Status))
{
return Status;
}
FileName = &AbsFileName;
}
Status = CdfsDeviceIoControl (DeviceExt->StorageDevice,
IOCTL_CDROM_CHECK_VERIFY,
NULL,
0,
NULL,
0,
FALSE);
DPRINT ("Status %lx\n", Status);
if (!NT_SUCCESS(Status))
{
DPRINT1 ("Status %lx\n", Status);
return Status;
}
DPRINT("PathName to open: %wZ\n", FileName);
/* try first to find an existing FCB in memory */
DPRINT("Checking for existing FCB in memory\n");
Fcb = CdfsGrabFCBFromTable(DeviceExt,
FileName);
if (Fcb == NULL)
{
DPRINT("No existing FCB found, making a new one if file exists.\n");
Status = CdfsGetFCBForFile(DeviceExt,
&ParentFcb,
&Fcb,
FileName);
if (ParentFcb != NULL)
{
CdfsReleaseFCB(DeviceExt,
ParentFcb);
}
if (!NT_SUCCESS (Status))
{
DPRINT("Could not make a new FCB, status: %x\n", Status);
if (FileName == &AbsFileName)
RtlFreeUnicodeString(&AbsFileName);
return Status;
}
}
DPRINT("Attaching FCB to fileObject\n");
Status = CdfsAttachFCBToFileObject(DeviceExt,
Fcb,
FileObject);
if ((FileName == &AbsFileName) && AbsFileName.Buffer)
ExFreePoolWithTag(AbsFileName.Buffer, CDFS_FILENAME_TAG);
return Status;
}
/*
* FUNCTION: Opens a file
*/
static NTSTATUS
CdfsCreateFile(PDEVICE_OBJECT DeviceObject,
PIRP Irp)
{
PDEVICE_EXTENSION DeviceExt;
PIO_STACK_LOCATION Stack;
PFILE_OBJECT FileObject;
ULONG RequestedDisposition;
ULONG RequestedOptions;
PFCB Fcb;
NTSTATUS Status;
DPRINT("CdfsCreateFile() called\n");
DeviceExt = DeviceObject->DeviceExtension;
ASSERT(DeviceExt);
Stack = IoGetCurrentIrpStackLocation (Irp);
ASSERT(Stack);
RequestedDisposition = ((Stack->Parameters.Create.Options >> 24) & 0xff);
RequestedOptions = Stack->Parameters.Create.Options & FILE_VALID_OPTION_FLAGS;
DPRINT("RequestedDisposition %x, RequestedOptions %x\n",
RequestedDisposition, RequestedOptions);
FileObject = Stack->FileObject;
if (RequestedDisposition == FILE_CREATE ||
RequestedDisposition == FILE_OVERWRITE_IF ||
RequestedDisposition == FILE_SUPERSEDE)
{
return STATUS_ACCESS_DENIED;
}
Status = CdfsOpenFile(DeviceExt,
FileObject,
&FileObject->FileName);
if (NT_SUCCESS(Status))
{
Fcb = FileObject->FsContext;
/* Check whether the file has the requested attributes */
if (RequestedOptions & FILE_NON_DIRECTORY_FILE && CdfsFCBIsDirectory(Fcb))
{
CdfsCloseFile (DeviceExt, FileObject);
return STATUS_FILE_IS_A_DIRECTORY;
}
if (RequestedOptions & FILE_DIRECTORY_FILE && !CdfsFCBIsDirectory(Fcb))
{
CdfsCloseFile (DeviceExt, FileObject);
return STATUS_NOT_A_DIRECTORY;
}
DeviceExt->OpenHandleCount++;
}
/*
* If the directory containing the file to open doesn't exist then
* fail immediately
*/
Irp->IoStatus.Information = (NT_SUCCESS(Status)) ? FILE_OPENED : 0;
return Status;
}
NTSTATUS NTAPI
CdfsCreate(
PCDFS_IRP_CONTEXT IrpContext)
{
PDEVICE_OBJECT DeviceObject;
PDEVICE_EXTENSION DeviceExt;
NTSTATUS Status;
DPRINT("CdfsCreate()\n");
ASSERT(IrpContext);
DeviceObject = IrpContext->DeviceObject;
DeviceExt = DeviceObject->DeviceExtension;
if (BooleanFlagOn(DeviceExt->Flags, VCB_VOLUME_LOCKED))
{
return STATUS_ACCESS_DENIED;
}
if (DeviceObject == CdfsGlobalData->CdFsDeviceObject || DeviceObject == CdfsGlobalData->HddFsDeviceObject)
{
/* DeviceObject represents FileSystem instead of logical volume */
DPRINT("Opening file system\n");
IrpContext->Irp->IoStatus.Information = FILE_OPENED;
DeviceExt->OpenHandleCount++;
return STATUS_SUCCESS;
}
KeEnterCriticalRegion();
ExAcquireResourceExclusiveLite(&DeviceExt->DirResource,
TRUE);
Status = CdfsCreateFile(DeviceObject,
IrpContext->Irp);
ExReleaseResourceLite(&DeviceExt->DirResource);
KeLeaveCriticalRegion();
return Status;
}
/* EOF */