From: "Rémi Denis-Courmont" <remi@remlab.net>
To: netdev@vger.kernel.org
Subject: Re: RFC: New BPF 'LOOP' instruction
Date: Tue, 3 Aug 2010 18:17:40 +0300 [thread overview]
Message-ID: <201008031817.40664.remi@remlab.net> (raw)
In-Reply-To: <20100803141924.GV11110@cel.leo>
Le mardi 3 août 2010 17:19:24 Paul LeoNerd Evans, vous avez écrit :
> On Tue, Aug 03, 2010 at 04:16:02PM +0200, Rémi Denis-Courmont wrote:
> > > Is there any way it could be done lazily, at the moment that filter.c
> > > knows it has to provide either SKF_TRANS_OFF or SKF_AD_TRANSPROTO?
> >
> > You would essentially need to implement dedicated parsing for each
> > protocols family.
> > So you might as well add an opcode dedicated to IPv6...
>
> And what happens when IPv8 comes along?
> Or we want to parse IPX/SPX or
> any of those thousands of other network protocols?
It does not work. That's why your SKB_TRANS_OFF proposal sucks totally because
it is not implementable. On the other hand, n IPv6-specific opcode sucks only
a little due to its ugliness and lack of forward compatibility.
--
Rémi Denis-Courmont
http://www.remlab.net/
http://fi.linkedin.com/in/remidenis
next prev parent reply other threads:[~2010-08-03 15:17 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-08-02 11:03 RFC: New BGF 'LOOP' instruction Paul LeoNerd Evans
2010-08-02 11:13 ` RFC: New BPF " Paul LeoNerd Evans
2010-08-02 20:16 ` RFC: New BGF " Hagen Paul Pfeifer
2010-08-03 5:18 ` David Miller
2010-08-03 7:07 ` Paul LeoNerd Evans
2010-08-03 7:19 ` David Miller
2010-08-03 9:10 ` Hagen Paul Pfeifer
2010-08-03 13:40 ` Paul LeoNerd Evans
2010-08-03 9:03 ` Hagen Paul Pfeifer
2010-08-03 7:18 ` RFC: New BPF " Paul LeoNerd Evans
2010-08-03 5:13 ` RFC: New BGF " David Miller
2010-08-03 7:04 ` Paul LeoNerd Evans
2010-08-03 7:18 ` David Miller
2010-08-03 12:58 ` Andi Kleen
2010-08-03 13:07 ` David Miller
2010-08-03 13:34 ` RFC: New BPF " Paul LeoNerd Evans
2010-08-03 13:42 ` Paul LeoNerd Evans
2010-08-03 14:09 ` Rémi Denis-Courmont
2010-08-03 14:13 ` Paul LeoNerd Evans
2010-08-03 14:16 ` Rémi Denis-Courmont
2010-08-03 14:19 ` Paul LeoNerd Evans
2010-08-03 15:17 ` Rémi Denis-Courmont [this message]
2010-08-03 15:27 ` Paul LeoNerd Evans
2010-08-03 14:05 ` RFC: New BGF " Andi Kleen
2010-08-03 14:11 ` Paul LeoNerd Evans
2010-08-03 14:34 ` Paul LeoNerd Evans
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