Re: [RFC] FUSE permission modell (Was: fuse review bits)

From: Bodo Eggert
Date: Tue Apr 19 2005 - 10:03:21 EST


On Tue, 19 Apr 2005, Eric Van Hensbergen wrote:
> On 4/17/05, Bodo Eggert <harvested.in.lkml@xxxxxxxxxxxxxxxxxxxxxxxxxx>

> > > I was thinking about this a while back and thought having a user-mount
> > > permissions file might be the right way to address lots of these
> > > issues. Essentially it would contain information about what
> > > users/groups were allowed to mount what sources to what destinations
> > > and with what mandatory options.
> >
> > Users being able to mount random fs containing suid or device nodes
> > are root whenever they want to. If you want to mount with dev or suid,
> > use sudo and restrict the mount to a limited set of images/devices/whatever.
>
> Well, that would kinda be the intent behind the permissions file --
> it can specify what restricted set of images/devices/whatever the user
> can mount, I suppose the sensible thing would be to always enforce
> nosuid and nsgid, but I'd rather keep these as the default version of
> options (allowing admins to shoot themselves in the foot perhaps, but
> in the single-user workstation case, is seems like there's less reason
> to be so paranoid).

I think you shouldn't help the admins by creating shoes with target marks.

Allowing user mounts with no* should be allways ok (no config needed
besides the ulimit), and mounting specified files to defined locations
is allready supported by fstab.
--
Top 100 things you don't want the sysadmin to say:
6. We prefer not to change the root password, it's an nice easy one
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