Re: [PATCH] sysctl selinux: Don't look at table->de

[Russell Coker <russell@coker.com.au>]

On Tuesday 30 January 2007 05:43, Stephen Smalley <sds@tycho.nsa.gov> wrote:
> True, but a system that disables proc is likely a system with a custom
> policy anyway,

In practice we have to extensively customise policy long before getting to the 
non-proc stage of optimising for small hardware.  The Familiar distribution 
(used on the iPaQ) has /proc but needs significant policy changes when 
compared to a typical Fedora workstation.  Not only is there the issue that 
embedded distributions have different daemons and path names to workstations, 
but the memory constraints mean that even a modular targeted policy is not as 
small as you desire.

> and dependency on proc is fairly basic to selinux these 
> days (due to reliance on /proc/self/attr for process attribute
> manipulation in place of the old selinux syscalls).  Possibly we should
> just make selinux depend on proc and drop the #ifdef there.

I think that is the correct thing to do.  Someone who is prepared to do all 
the work needed to get a recent SE Linux system operating without /proc will 
have no problem changing the kernel config scripts and everyone else would be 
better off not being confused by being offered sets of options that are not 
viable.

-- 
russell@coker.com.au
http://etbe.blogspot.com/          My Blog

http://www.coker.com.au/sponsorship.html Sponsoring Free Software development