[Samba] Do Unix extensions still work with SMB3?

[Jeremy Allison]

On Sun, Oct 15, 2017 at 10:45:02AM +1000, Adam Nielsen via samba wrote:
> > > Quick question - does Samba server still support Unix extensions when
> > > connecting over SMB3?
> > 
> > FYI, when we do finalize the UNIX extensions, at least for
> > the Samba implementation, we're not going to allow clients
> > to create "real" symlinks on the server - only SMB-followable
> > symlinks. Allowing clients to create real server symlinks as
> > in SMB1 UNIX extensions has been a long-term security disaster.
> 
> Thanks for the info.  Will there be a utility to convert existing
> server-side symlinks into SMB-style symlinks, so that upgrading the
> server won't break existing symlinks?  Or at least a server-side command
> to create SMB symlinks so you can script the change with `find -type l`?

Hmmm. That's a good idea. "Probably" :-), now you've given
me the idea !