netdev - Re: + smack-unlabeled-outgoing-ambient-packets.patch added to -mm tree

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Date:	Fri, 8 Feb 2008 12:43:52 -0500
From:	Paul Moore <paul.moore@...com>
To:	casey@...aufler-ca.com
Cc:	Andrew Morton <akpm@...ux-foundation.org>, davem@...emloft.net,
	jmorris@...ei.org, mingo@...e.hu, sds@...ho.nsa.gov,
	linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: + smack-unlabeled-outgoing-ambient-packets.patch added to -mm tree

> > > ------------------------------------------------------
> > > Subject: Smack: unlabeled outgoing ambient packets
> > > From: Casey Schaufler <casey@...aufler-ca.com>
> > >
> > > Smack uses CIPSO labeling, but allows for unlabeled packets by
> > > specifying an "ambient" label that is applied to incoming
> > > unlabeled packets.  Because the other end of the connection may
> > > dislike IP options, and ssh is one know application that behaves
> > > thus ...

I forgot to mention this earlier, but RHEL/Fedora/Rawhide has a patched 
version of SSH (see RH bugzilla #202856 for the discussion/patch) that 
fixes the problem of IPv4 options causing SSH to reject the connection.  
It turns out that SSH is being a bit overzealous (rejecting all IPv4 
options) in trying to reject source-routed packets.

-- 
paul moore
linux security @ hp
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