oplock breaks

jra at dp.samba.org jra at dp.samba.org
Fri Jan 10 00:49:39 GMT 2003

On Thu, Jan 09, 2003 at 06:08:01PM -0600, Steven French wrote:
> In implementing oplock code in the Linux cifs vfs I noticed that Win2K
> sends a UID of zero (but non-zero FID and TID) on the oplock break from the
> server ... this implies that the space of valid fids is not related to the
> UID.   Thus if I thought that it were possible to do more than 64K open
> instances to a particular Windows server the fids it generates are either
> unique across a particular tid or unique across a particular tid across a
> particular TCP connection? and the tids that the server generates are also
> unrelated to the UID ...

I'm not sure you can infer that. Surely it just means that
the only thing the Windows client checks on an oplock break
request is the FID and TID.


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