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Added ability to open a file using a handle to a directory file and a relative path name.

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Tested on NT4.

svn path=/trunk/; revision=4677
This commit is contained in:
Eric Kohl 2003-05-12 10:00:46 +00:00
parent 64ca9e3c34
commit c0f1cf6933
2 changed files with 72 additions and 47 deletions
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113
reactos/ntoskrnl/io/create.c
View file

@ -1,4 +1,4 @@
/* $Id: create.c,v 1.62 2002/11/05 20:24:33 hbirr Exp $
/* $Id: create.c,v 1.63 2003/05/12 10:00:46 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -67,8 +67,9 @@ IopCreateFile(PVOID ObjectBody,
PWSTR RemainingPath,
POBJECT_ATTRIBUTES ObjectAttributes)
{
PDEVICE_OBJECT DeviceObject = (PDEVICE_OBJECT) Parent;
PDEVICE_OBJECT DeviceObject;
PFILE_OBJECT FileObject = (PFILE_OBJECT) ObjectBody;
POBJECT_TYPE ParentObjectType;
NTSTATUS Status;
DPRINT("IopCreateFile(ObjectBody %x, Parent %x, RemainingPath %S)\n",
@ -76,73 +77,97 @@ IopCreateFile(PVOID ObjectBody,
Parent,
RemainingPath);
if (NULL == DeviceObject)
if (NULL == Parent)
{
/* This is probably an attempt to create a meta fileobject (eg. for FAT)
for the cache manager, so return STATUS_SUCCESS */
DPRINT("DeviceObject was NULL\n");
DPRINT("Parent object was NULL\n");
return(STATUS_SUCCESS);
}
if (IoDeviceObjectType != BODY_TO_HEADER(Parent)->ObjectType)
ParentObjectType = BODY_TO_HEADER(Parent)->ObjectType;
if (ParentObjectType != IoDeviceObjectType &&
ParentObjectType != IoFileObjectType)
{
CPRINT("Parent is a %S which is not a device type\n",
CPRINT("Parent is a %S which is neither a file type nor a device type\n",
BODY_TO_HEADER(Parent)->ObjectType->TypeName.Buffer);
return(STATUS_UNSUCCESSFUL);
}
Status = ObReferenceObjectByPointer(DeviceObject,
Status = ObReferenceObjectByPointer(Parent,
STANDARD_RIGHTS_REQUIRED,
IoDeviceObjectType,
ParentObjectType,
UserMode);
if (!NT_SUCCESS(Status))
{
CPRINT("Failed to reference device object %x\n", DeviceObject);
CPRINT("Failed to reference parent object %x\n", Parent);
return(Status);
}
DeviceObject = IoGetAttachedDevice(DeviceObject);
DPRINT("DeviceObject %x\n", DeviceObject);
if (NULL == RemainingPath)
if (ParentObjectType == IoDeviceObjectType)
{
FileObject->Flags = FileObject->Flags | FO_DIRECT_DEVICE_OPEN;
FileObject->FileName.Buffer = 0;
FileObject->FileName.Length = FileObject->FileName.MaximumLength = 0;
/* Parent is a devce object */
DeviceObject = IoGetAttachedDevice((PDEVICE_OBJECT)Parent);
DPRINT("DeviceObject %x\n", DeviceObject);
if (RemainingPath == NULL)
{
FileObject->Flags = FileObject->Flags | FO_DIRECT_DEVICE_OPEN;
FileObject->FileName.Buffer = 0;
FileObject->FileName.Length = FileObject->FileName.MaximumLength = 0;
}
else
{
if ((DeviceObject->DeviceType != FILE_DEVICE_FILE_SYSTEM)
&& (DeviceObject->DeviceType != FILE_DEVICE_DISK)
&& (DeviceObject->DeviceType != FILE_DEVICE_CD_ROM)
&& (DeviceObject->DeviceType != FILE_DEVICE_TAPE)
&& (DeviceObject->DeviceType != FILE_DEVICE_NETWORK)
&& (DeviceObject->DeviceType != FILE_DEVICE_NAMED_PIPE)
&& (DeviceObject->DeviceType != FILE_DEVICE_MAILSLOT))
{
CPRINT("Device was wrong type\n");
return(STATUS_UNSUCCESSFUL);
}
if (DeviceObject->DeviceType != FILE_DEVICE_NETWORK
&& (DeviceObject->DeviceType != FILE_DEVICE_NAMED_PIPE)
&& (DeviceObject->DeviceType != FILE_DEVICE_MAILSLOT))
{
if (!(DeviceObject->Vpb->Flags & VPB_MOUNTED))
{
DPRINT("Mount the logical volume\n");
Status = IoMountVolume(DeviceObject, FALSE);
DPRINT("Status %x\n", Status);
if (!NT_SUCCESS(Status))
{
CPRINT("Failed to mount logical volume (Status %x)\n",
Status);
return(Status);
}
}
DeviceObject = DeviceObject->Vpb->DeviceObject;
DPRINT("FsDeviceObject %lx\n", DeviceObject);
}
RtlCreateUnicodeString(&(FileObject->FileName),
RemainingPath);
}
}
else
{
if ((DeviceObject->DeviceType != FILE_DEVICE_FILE_SYSTEM)
&& (DeviceObject->DeviceType != FILE_DEVICE_DISK)
&& (DeviceObject->DeviceType != FILE_DEVICE_CD_ROM)
&& (DeviceObject->DeviceType != FILE_DEVICE_TAPE)
&& (DeviceObject->DeviceType != FILE_DEVICE_NETWORK)
&& (DeviceObject->DeviceType != FILE_DEVICE_NAMED_PIPE)
&& (DeviceObject->DeviceType != FILE_DEVICE_MAILSLOT))
/* Parent is a file object */
if (RemainingPath == NULL)
{
CPRINT("Device was wrong type\n");
return(STATUS_UNSUCCESSFUL);
CPRINT("Device is unnamed\n");
return STATUS_UNSUCCESSFUL;
}
if (DeviceObject->DeviceType != FILE_DEVICE_NETWORK
&& (DeviceObject->DeviceType != FILE_DEVICE_NAMED_PIPE)
&& (DeviceObject->DeviceType != FILE_DEVICE_MAILSLOT))
{
if (!(DeviceObject->Vpb->Flags & VPB_MOUNTED))
{
DPRINT("Mount the logical volume\n");
Status = IoMountVolume(DeviceObject, FALSE);
DPRINT("Status %x\n", Status);
if (!NT_SUCCESS(Status))
{
CPRINT("Failed to mount logical volume (Status %x)\n",
Status);
return(Status);
}
}
DeviceObject = DeviceObject->Vpb->DeviceObject;
DPRINT("FsDeviceObject %lx\n", DeviceObject);
}
DeviceObject = ((PFILE_OBJECT)Parent)->DeviceObject;
DPRINT("DeviceObject %x\n", DeviceObject);
FileObject->RelatedFileObject = (PFILE_OBJECT)Parent;
RtlCreateUnicodeString(&(FileObject->FileName),
RemainingPath);
}

6
reactos/ntoskrnl/io/device.c
View file

@ -1,4 +1,4 @@
/* $Id: device.c,v 1.50 2003/02/19 00:05:07 gvg Exp $
/* $Id: device.c,v 1.51 2003/05/12 10:00:46 ekohl Exp $
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
@ -262,14 +262,14 @@ IopCreateDriverObject(PDRIVER_OBJECT *DriverObject,
DPRINT("Driver name: '%wZ'\n", &DriverName);
}
/* Initialize ObjectAttributes for ModuleObject */
/* Initialize ObjectAttributes for driver object */
InitializeObjectAttributes(&ObjectAttributes,
(ServiceName != NULL)? &DriverName : NULL,
OBJ_PERMANENT,
NULL,
NULL);
/* Create module object */
/* Create module object */
Status = ObCreateObject(&DriverHandle,
STANDARD_RIGHTS_REQUIRED,
&ObjectAttributes,