[Samba] create QFID request

[Jeremy Allison]

On Mon, Jul 30, 2018 at 12:36:50AM -0400, rac8006 via samba wrote:
> 
> What is the function of the create QFID request.  Looking at the request
> it does not seem to have any name or other discernible information.  I've
> searched the web for information on how to decode the request.  The
> monitor breaks down most of the block.  But the file name seems to be null.
> The response to the request also does not have a file name.  But it does
> show lastaccesstime creationtime lastwritetime and changedtime.  But 
> 
> for what file?  Also why would this request be made every 30 seconds or
> so?

QFID is a request for file ID and volume index. It's essentially
a request for a device/inode pair. If there's no name sent then
it's done on the root of the share.