linux-kernel - Re: [PATCH 3/3] SELinux: return -ECONNREFUSED from ip

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Message-ID: <4CE3BFC4.1010706@trash.net>
Date:	Wed, 17 Nov 2010 12:43:00 +0100
From:	Patrick McHardy <kaber@...sh.net>
To:	Eric Paris <eparis@...hat.com>
CC:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	selinux@...ho.nsa.gov, netfilter-devel@...r.kernel.org,
	equinox@...c24.net, eric.dumazet@...il.com, davem@...emloft.net,
	hzhong@...il.com, jmorris@...ei.org, kuznet@....inr.ac.ru,
	paul.moore@...com, pekkas@...core.fi, sds@...ho.nsa.gov,
	yoshfuji@...ux-ipv6.org
Subject: Re: [PATCH 3/3] SELinux: return -ECONNREFUSED from ip_postroute to
 signal	fatal error

On 16.11.2010 22:52, Eric Paris wrote:
> The SELinux netfilter hooks just return NF_DROP if they drop a packet.  We
> want to signal that a drop in this hook is a permanant fatal error and is not
> transient.  If we do this the error will be passed back up the stack in some
> places and applications will get a faster interaction that something went
> wrong.

Looks good to me. I'd suggest to have these patches go through Dave's
tree since I want to make use of the netfilter error propagation
mechanism to return proper errno codes for netfilter re-routing
failures.
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