Date: Wed, 16 Sep 2009 20:30:56 +0100 From: Matthew Seaman <m.seaman@infracaninophile.co.uk> To: Artis Caune <artis.caune@gmail.com> Cc: freebsd-questions@freebsd.org Subject: Re: /tmp sticky bit differences on FreeBSD 8 Message-ID: <4AB13CF0.2060508@infracaninophile.co.uk> In-Reply-To: <9e20d71e0909161221i432edd65s9dac7e0da7c2fdc9@mail.gmail.com> References: <9e20d71e0909161221i432edd65s9dac7e0da7c2fdc9@mail.gmail.com>
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Artis Caune wrote:
> Hi,
>
> can someone point me to what has changed in file creation modes in
> /tmp directory?
>
> # FreeBSD 6, 7:
> $ cd /tmp; id; touch testfile; mkdir testdir; ls -la
> uid=65534(nobody) gid=65534(nobody) groups=65534(nobody)
> drwxr-xr-x 2 nobody wheel 2 Sep 16 22:10 testdir
> -rw-r--r-- 1 nobody wheel 0 Sep 16 22:10 testfile
>
>
> # FreeBSD 8:
> $ cd /tmp; id; touch test; ls -la test
> uid=65534(nobody) gid=65534(nobody) groups=65534(nobody)
> drwxr-xr-x 2 nobody nobody 2 Sep 16 22:12 testdir
> -rw-r--r-- 1 nobody nobody 0 Sep 16 22:12 testfile
>
>
> On FreeBSD 6,7 files are created with wheel group, but on 8 - with `gid`.
It seems that ZFS uses SysV group semantics (new files get the 1ary group of
the user unless the directory is set to SGID). UFS filesystems on 8.x
still behave in the expected BSD way (new files get the same group as the
directory unless the user is not a member of that group, when they get the
users' 1ary group).
There's a thread 'ZFS Group ownership' on this topic in freebsd-hackers@...
at the moment.
Cheers,
Matthew
--
Dr Matthew J Seaman MA, D.Phil. 7 Priory Courtyard
Flat 3
PGP: http://www.infracaninophile.co.uk/pgpkey Ramsgate
Kent, CT11 9PW
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