mirror of
https://github.com/reactos/reactos.git
synced 2024-08-19 18:02:55 +00:00
118 lines
3.1 KiB
C
118 lines
3.1 KiB
C
/*
|
|
* PROJECT: ReactOS Kernel
|
|
* LICENSE: GPL - See COPYING in the top level directory
|
|
* FILE: ntoskrnl/fsrtl/pnp.c
|
|
* PURPOSE: Manages PnP support routines for file system drivers.
|
|
* PROGRAMMERS: Pierre Schweitzer
|
|
*/
|
|
|
|
/* INCLUDES ******************************************************************/
|
|
|
|
#include <ntoskrnl.h>
|
|
#include <ioevent.h>
|
|
#define NDEBUG
|
|
#include <debug.h>
|
|
|
|
/* PUBLIC FUNCTIONS **********************************************************/
|
|
|
|
/*++
|
|
* @name FsRtlNotifyVolumeEvent
|
|
* @implemented
|
|
*
|
|
* Notifies system (and applications) that something changed on volume.
|
|
* FSD should call it each time volume status changes.
|
|
*
|
|
* @param FileObject
|
|
* FileObject for the volume
|
|
*
|
|
* @param EventCode
|
|
* Event that occurs one the volume
|
|
*
|
|
* @return STATUS_SUCCESS if notification went well
|
|
*
|
|
* @remarks Only present in NT 5+.
|
|
*
|
|
*--*/
|
|
NTSTATUS
|
|
NTAPI
|
|
FsRtlNotifyVolumeEvent(IN PFILE_OBJECT FileObject,
|
|
IN ULONG EventCode)
|
|
{
|
|
NTSTATUS Status;
|
|
LPGUID Guid = NULL;
|
|
PDEVICE_OBJECT DeviceObject = NULL;
|
|
TARGET_DEVICE_CUSTOM_NOTIFICATION Notification;
|
|
|
|
Status = IoGetRelatedTargetDevice(FileObject, &DeviceObject);
|
|
if (!NT_SUCCESS(Status))
|
|
{
|
|
return Status;
|
|
}
|
|
|
|
Status = STATUS_INVALID_PARAMETER;
|
|
|
|
Notification.Version = 1;
|
|
Notification.Size = sizeof(TARGET_DEVICE_CUSTOM_NOTIFICATION);
|
|
/* MSDN says that FileObject must be null
|
|
when calling IoReportTargetDeviceChangeAsynchronous */
|
|
Notification.FileObject = NULL;
|
|
Notification.NameBufferOffset = -1;
|
|
/* Find the good GUID associated with the event */
|
|
switch (EventCode)
|
|
{
|
|
case FSRTL_VOLUME_DISMOUNT:
|
|
{
|
|
Guid = (LPGUID)&GUID_IO_VOLUME_DISMOUNT;
|
|
break;
|
|
}
|
|
case FSRTL_VOLUME_DISMOUNT_FAILED:
|
|
{
|
|
Guid = (LPGUID)&GUID_IO_VOLUME_DISMOUNT_FAILED;
|
|
break;
|
|
}
|
|
case FSRTL_VOLUME_LOCK:
|
|
{
|
|
Guid = (LPGUID)&GUID_IO_VOLUME_LOCK;
|
|
break;
|
|
}
|
|
case FSRTL_VOLUME_LOCK_FAILED:
|
|
{
|
|
Guid = (LPGUID)&GUID_IO_VOLUME_LOCK_FAILED;
|
|
break;
|
|
}
|
|
case FSRTL_VOLUME_MOUNT:
|
|
{
|
|
Guid = (LPGUID)&GUID_IO_VOLUME_MOUNT;
|
|
break;
|
|
}
|
|
case FSRTL_VOLUME_UNLOCK:
|
|
{
|
|
Guid = (LPGUID)&GUID_IO_VOLUME_UNLOCK;
|
|
break;
|
|
}
|
|
}
|
|
if (Guid)
|
|
{
|
|
/* Copy GUID to notification structure and then report the change */
|
|
RtlCopyMemory(&(Notification.Event), Guid, sizeof(GUID));
|
|
|
|
if (EventCode == FSRTL_VOLUME_MOUNT)
|
|
{
|
|
IoReportTargetDeviceChangeAsynchronous(DeviceObject,
|
|
&Notification,
|
|
NULL,
|
|
NULL);
|
|
}
|
|
else
|
|
{
|
|
IoReportTargetDeviceChange(DeviceObject,
|
|
&Notification);
|
|
}
|
|
|
|
Status = STATUS_SUCCESS;
|
|
}
|
|
ObDereferenceObject(DeviceObject);
|
|
|
|
return Status;
|
|
}
|