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,
>=20
> can someone point me to what has changed in file creation modes in
> /tmp directory?
>=20
> # FreeBSD 6, 7:
> $ cd /tmp; id; touch testfile; mkdir testdir; ls -la
> uid=3D65534(nobody) gid=3D65534(nobody) groups=3D65534(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
>=20
>=20
> # FreeBSD 8:
> $ cd /tmp; id; touch test; ls -la test
> uid=3D65534(nobody) gid=3D65534(nobody) groups=3D65534(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
>=20
>=20
> 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=20
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 th=
e
users' 1ary group).
There's a thread 'ZFS Group ownership' on this topic in freebsd-hackers@=
=2E..
at the moment.
Cheers,
Matthew
--=20
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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