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Date: Sun, 5 Jun 2011 22:47:06 +0400
From: Solar Designer <>
Subject: Re: procfs mount options

On Sun, Jun 05, 2011 at 10:36:20PM +0400, Vasiliy Kulikov wrote:
> On Fri, Jun 03, 2011 at 23:11 +0400, Solar Designer wrote:
> > Indeed, we could set some of these perms with chmod post-mount, but as
> > discussed this has drawbacks.  So ideally our preferred configuration
> > (which will be the default on Owl) should be achievable with mount
> > options alone.
> What if implement mode=XXX option to alter root directory permissions
> only, like tmpfs?  Then all non-pid files may be chmod'ed without any
> race due to distro-specific policy and then "chmod a+rx /proc" to allow
> nonroot users to see procfs files.

This makes sense to me, although other mount options that you
implemented appear to be sufficient to implement the desired default
policy for Owl.


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