Target device name

NTFSD
1

Hi, All!

I’m writting FS filter driver. My driver intercepts IRP_MJ_CREATE
requests. While processng this request I want to know name
of device , that file system is mounted on.
In other words given pFSDevice is file system device object for
mounted volume, I want to know name of device pFSDevice
is mounted on, like \Device\Harddisk0\Partition1

Any help will be great.

Regards, Dennis

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2

You must use the ObQueryNameString routine on
the physical device object (Vpb->RealDevice).

Paul

-----P?vodn? zpr?va-----
Od: Dennis [SMTP:xxxxx@yahoo.com]
Odesl?no: 6. ?ervence 2000 14:52
Komu: File Systems Developers
P?edm?t: [ntfsd] Target device name

Hi, All!

I’m writting FS filter driver. My driver intercepts IRP_MJ_CREATE
requests. While processng this request I want to know name
of device , that file system is mounted on.
In other words given pFSDevice is file system device object for
mounted volume, I want to know name of device pFSDevice
is mounted on, like \Device\Harddisk0\Partition1

Any help will be great.

Regards, Dennis

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3

> I’m writting FS filter driver. My driver intercepts IRP_MJ_CREATE

requests. While processng this request I want to know name
of device , that file system is mounted on.
In other words given pFSDevice is file system device object for
mounted volume, I want to know name of device pFSDevice
is mounted on, like \Device\Harddisk0\Partition1

Try ObQueryNameString. Allocate a large enough temporary buffer and pass it
to ObQueryNameString.

Max