[Samba] zfs permissions

Ryan Bair ryandbair at gmail.com
Wed Mar 12 07:42:22 MDT 2014

Hi Tom,

The current release of zfsonlinux does not support ACLs, I'm guessing this
is what you are running into. There is support in trunk however so hope is
on the horizon (or right now if you're feeling dangerous and keep good

I know there used to be a Samba option to store ACLs in an xattr (which is
supported with current ZFS), however I couldn't find the config option in
the manual.

On Mar 11, 2014 10:47 PM, "Tom Jermy" <tomjermy at gmail.com> wrote:

> Hello,
> I'm using Samba Version 4.0.15-SerNet-RedHat-7.el6 (AD DC)
> and zfs-0.6.2-1.el6.x86_64.
> I cannot change permissions on files from either Windows ('Access Denied')
> or the samba-tool on shares from local zfs mounts:
> # samba-tool ntacl set 'O:LAG:S-1-22-2-0D:PAI(A;OICI;0x001301bf;;;WD)'
> CompanyName/ Company/
> fset_nt_acl_no_snum: fset_nt_acl returned NT_STATUS_ACCESS_DENIED.
> ERROR(runtime): uncaught exception - (-1073741790, 'Access denied')
>   File "/usr/lib64/python2.6/site-packages/samba/netcmd/__init__.py", line
> 175, in _run
>     return self.run(*args, **kwargs)
>   File "/usr/lib64/python2.6/site-packages/samba/netcmd/ntacl.py", line 90,
> in run
>     setntacl(lp, file, acl, str(domain_sid), xattr_backend, eadb_file,
> use_ntvfs=use_ntvfs)
>   File "/usr/lib64/python2.6/site-packages/samba/ntacls.py", line 154, in
> setntacl
>     smbd.set_nt_acl(file, security.SECINFO_OWNER | security.SECINFO_GROUP |
> security.SECINFO_DACL | security.SECINFO_SACL, sd)
> I cannot see where I am going wrong. I have zfs set
> aclinheritance=passthrough-x, tried xattr on/off/sa/dir ...
> Perhaps this belongs on the zfs list but would appreciate any feedback if
> there are folk out there who have encountered this / not encountered this.
> Thank you
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