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[MOUNTMGR] Introduce MountMgrSendSyncDeviceIoCtl() to replace repeated code (#6960)

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See https://www.osr.com/blog/2018/02/14/beware-iobuilddeviceiocontrolrequest/
for some details about IRQL requirements.
This commit is contained in:
Hermès Bélusca-Maïto 2024-05-26 22:18:46 +02:00
parent 50271949e7
commit ab0e04c81d
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5 changed files with 234 additions and 448 deletions
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35
drivers/storage/mountmgr/notify.c
View file

@ -37,13 +37,9 @@
VOID
SendOnlineNotification(IN PUNICODE_STRING SymbolicName)
{
PIRP Irp;
KEVENT Event;
NTSTATUS Status;
PFILE_OBJECT FileObject;
PIO_STACK_LOCATION Stack;
PDEVICE_OBJECT DeviceObject;
IO_STATUS_BLOCK IoStatusBlock;
/* Get device object */
Status = IoGetDeviceObjectPointer(SymbolicName,
@ -51,40 +47,21 @@ SendOnlineNotification(IN PUNICODE_STRING SymbolicName)
&FileObject,
&DeviceObject);
if (!NT_SUCCESS(Status))
{
return;
}
/* And attached device object */
DeviceObject = IoGetAttachedDeviceReference(FileObject->DeviceObject);
/* And send VOLUME_ONLINE */
KeInitializeEvent(&Event, NotificationEvent, FALSE);
Irp = IoBuildDeviceIoControlRequest(IOCTL_VOLUME_ONLINE,
DeviceObject,
NULL, 0,
NULL, 0,
FALSE,
&Event,
&IoStatusBlock);
if (!Irp)
{
goto Cleanup;
}
Status = MountMgrSendSyncDeviceIoCtl(IOCTL_VOLUME_ONLINE,
DeviceObject,
NULL, 0,
NULL, 0,
FileObject);
UNREFERENCED_PARAMETER(Status);
Stack = IoGetNextIrpStackLocation(Irp);
Stack->FileObject = FileObject;
Status = IoCallDriver(DeviceObject, Irp);
if (Status == STATUS_PENDING)
{
KeWaitForSingleObject(&Event, Executive, KernelMode, FALSE, NULL);
}
Cleanup:
ObDereferenceObject(DeviceObject);
ObDereferenceObject(FileObject);
return;
}