I will make that both of those changes, thanks a lot!!!
Jeremy
-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Tony Mason
Sent: Thursday, April 14, 2005 12:56 PM
To: Windows File Systems Devs Interest List
Subject: RE: [ntfsd] HELP IRP_MN_MOUNT_VOLUME issues
There are two device objects in the Vpb. RealDevice (the device object
for the media) and DeviceObject (the device object for the mounted file
system instance). Use the DeviceObject.
Also, you should use IoAttachDeviceToDeviceStackSafe in order to avoid a
narrow race condition between attachment and calling (which requires
using some additional serialization to avoid otherwise).
Regards,
Tony
Tony Mason
Consulting Partner
OSR Open Systems Resources, Inc.
http://www.osr.com http:</http:>
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Jeremy Schwartz
Sent: Wednesday, April 13, 2005 4:06 PM
To: ntfsd redirect
Subject: [ntfsd] HELP IRP_MN_MOUNT_VOLUME issues
Hi All,
I need some help with handling IRP_MN_MOUNT_VOLUME.
I hook on \Ntfs and handle all IRP_MJ_FILE_SYSTEM_CONTROL
IRP_MN_MOUNT_VOLUME requests.
I have a function based on FileSpy/Sfilter that does the following.
Create an new device
IoCreateDevice
Save the device object
newDevExt->DiskDeviceObject =
pIrpSp->Parameters.MountVolume.Vpb->RealDevice;
Setup a completion routine and let the irp go through, wait on an event
for the operation to finish.
IoCallDriver
Setup my device extension
vpb = newDevExt->DiskDeviceObject->Vpb;
IoAttachDeviceToDeviceStack( newDeviceObject, vpb->DiskObject );
This works to attach to the volume/disk object but I want to attach to
the filesystem. How can I get the correct device object to attach so I
can see all the file operations that occurs on the filesystem instead of
volume operations???
Thanks A lot,
Jeremy
Questions? First check the IFS FAQ at
https://www.osronline.com/article.cfm?id=17
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