[Samba] Prevent ReadOnly DOS attribute from being set

simo idra at samba.org
Wed Jul 5 20:45:51 GMT 2006

On Wed, 2006-07-05 at 13:30 -0700, Jeremy Allison wrote:
> On Wed, Jul 05, 2006 at 04:07:54PM -0400, Steven Cardinal wrote:
> > We have a third party application that tracks its own licensing through a
> > special file it creates. We just recently moved this application (along with
> > all of our other user data) from a Win2K server to a Samba 3.0.20 server.
> > This application no longer works correctly. What the application is doing is
> > creating the lock file when first lauched by a user and then setting the DOS
> > ReadOnly attribute. As other instances of the application get launched (by
> > other users) it appears that the app tries to unset the ReadOnly attribute,
> > add its info to the license file, and then sets it back to readonly.
> > 
> > 
> > Now that we're on Samba, this isn't working. The first set to ReadOnly sets
> > the owner bits to read (and the file is owned by the initial user). At that
> > point, new users are unable to remove this flag. The group setting is
> > correctly set for rwx, but it seems that is insufficient to permit the other
> > users to change the RO attribute. (I think I read that Samba will enforce
> > the ReadOnly so that only the owner can remove it).
> > 
> > Can anyone suggest a work-around? I'm willing to move this application to
> > its own share with special settings if that will help, although I'd rather
> > not have to. The vendor isn't willing to investigate it further (they say
> > it's our problem since we aren't on Windows).
> Try setting "dos filemode = yes", and also "store dos attributes = yes" on
> a filesystem that supports EA's.

You also need to set map readonly, map archive, map system and map
hidden to no


Simo Sorce
Samba Team GPL Compliance Officer
email: idra at samba.org

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