Samba POSIX ACL behavior

[Jeremy Allison]

On Thu, Nov 14, 2013 at 12:13:35PM -0600, Steve French wrote:
> > I recently encountered the following strange behavior as mentioned in
> > this post from several years ago:
> >
> > https://lists.samba.org/archive/linux-cifs-client/2009-February/004079.html
> >
> > I'm currently running Ubuntu 12.04 LTS on desktop and server, so
> > I took some time to try the latest packaged versions of Samba and
> > the kernel to make sure that the issue had not yet been fixed.
> >
> > Client:  Ubuntu 12.04 LTS with Kernel 3.11.0-13-generic
> > Server:  Ubuntu 12.04 LTS with Samba 3.6.20 and Kernel 3.5.0-43-generic
> >
> > I tried many other combinations and the behavior is the same.  It
> > looks like setting default ACLs somehow interacts with the
> > non-default ACLs and vice versa.
> 
> I tried this here to Samba 3.6 with slightly different results:
> 1) If I set both a default and non-default ACL that seems to work
> 2) but as you and Rob saw, if I setfacl a default ACL it removes the non-
> default ACL
> 3) and if I setfacl a non-default ACL it removes the default ACL
> 
> So for case 2 and 3 the behavior is different than for a local file system. 
> This may be a server bug.

Can you send me a wireshark trace ?

> For Samba 4 and Samba 4.2-pre (master) - I get an error not supported on this
> infolevel 512 (Set POSIX ACL).

You're running the wrong server :-). You need smbd running, not the source4
server.

Jeremy.