[WIP] Remove confusing --use-xattrs option from samba-tool domain provision

[Alexander Bokovoy]

On Sun, 04 Sep 2016, Rowland Penny wrote:
> On Sun, 04 Sep 2016 22:32:46 +1200
> Andrew Bartlett <abartlet at samba.org> wrote:
> 
> > We keep it if built with NTVFS support, but it should cause less
> > confusion once most users stop seeing it. 
> > 
> > I realise this may break some scripts, but in this case I think it is
> > worth it for the simplification. 
> > 
> > This isn't for 4.5 (we don't change this kind of thing during an RC),
> > but should help simplify things for 4.6, and make it clear to others
> > that the default of --use-xattr is and has always been perfectly
> > correct. 
> > 
> > I'm running an autobuild to confirm I haven't broken anything else. 
> > 
> > Comment welcome.
> > 
> > Andrew Bartlett
> 
> Hi Andrew, there is this in the patch header:
> 
> The only reasonable use --use-xattrs=no should be used is in selftest,
> and there is no need for that or --use-xattrs=auto without
> --use-ntvfs, all systems we support in production for the AD DC have
> xattrs, as using smbd needs posix ACLs.
> 
> I take it we are no longer supporting UNIX OS's, because from my
> testing on Freebsd, you cannot provision an AD DC on that OS, this is
> because '--use-ntvfs' has been removed from the options and Freebsd
> uses ntvfs4 ACLs.
> 
> Can I also ask why, now that we only seem to support OS's that also
> support posix ACLs, why we are still using ntvfs, wouldn't this be a
> good time to get rid of it. I mean, what is the point of keeping code
> around that will never be used except for testing against.
Rowland, FreeBSD has support for POSIX ACLs and extended attributes for
years. See http://zewaren.net/site/node/154 for example how to enable
them in UFS volumes.

-- 
/ Alexander Bokovoy