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Date: Thu, 1 Nov 2001 20:28:45 +0100
From: Andi Kleen <ak@suse.de>
To: kuznet@ms2.inr.ac.ru
Cc: Andi Kleen <ak@suse.de>, joris@deadlock.et.tudelft.nl,
        linux-kernel@vger.kernel.org
Subject: Re: Bind to protocol with AF_PACKET doesn't work for outgoing packets
Message-ID: <20011101202845.A10648@wotan.suse.de>
In-Reply-To: <20011101192153.A30903@wotan.suse.de> <200111011856.VAA27068@ms2.inr.ac.ru>
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In-Reply-To: <200111011856.VAA27068@ms2.inr.ac.ru>; from kuznet@ms2.inr.ac.ru on Thu, Nov 01, 2001 at 09:56:34PM +0300
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On Thu, Nov 01, 2001 at 09:56:34PM +0300, A.N.Kuznetsov wrote:
> Hello!
> 
> > When you e.g. have a TCP sniffer it makes sense to only bind it to ETH_P_IP.
> 
> For what purpose? To add a small underdeveloped copy of BPF?

Just to have an symmetric API. Everything else is too ugly to explain 
in manpages ;)

> To summarize: I wanted to see a patch allowing to detect that
> nobody listens on outpu (or even splitting input and output ptype_all.)

That would require changing/breaking PF_PACKET, no? 

-Andi
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