From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Hemminger Subject: Re: Proposed interface for per-packet mesh-ttl Date: Sat, 28 Jul 2007 07:31:45 +0100 Message-ID: <20070728073145.57155e03@oldman> References: <445f43ac0707031149o2b50fc0en48aef4130b4b60ec@mail.gmail.com> <445f43ac0707031229m4ed60e0cg7960437c3e373c8e@mail.gmail.com> <20070727195616.GA31510@infradead.org> <1185574942.17934.9.camel@xo-13-A4-25.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Cc: Christoph Hellwig , Javier Cardona , netdev@vger.kernel.org To: Dan Williams Return-path: Received: from smtp2.linux-foundation.org ([207.189.120.14]:49158 "EHLO smtp2.linux-foundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751879AbXG1Gbv (ORCPT ); Sat, 28 Jul 2007 02:31:51 -0400 In-Reply-To: <1185574942.17934.9.camel@xo-13-A4-25.localdomain> Sender: netdev-owner@vger.kernel.org List-Id: netdev.vger.kernel.org On Fri, 27 Jul 2007 18:22:22 -0400 Dan Williams wrote: > On Fri, 2007-07-27 at 20:56 +0100, Christoph Hellwig wrote: > > On Tue, Jul 03, 2007 at 12:29:24PM -0700, Javier Cardona wrote: > > > I'm currently working on per-packet mesh ttl. My plan is to register > > > new mesh sockopts through netfilter. The user interface will be: > > > > NACK. Drivers should never add sockopt, and drivers should not abuse > > netfilter hooks. > > Do you have a suggestion for a better way to approach per-packet options > that userspace programs can set? > > Thanks, > Dan In this case perhaps you can have a table that maps skb->priority to mesh ttl? priorty can already by handled by existing setsockopt calls, and modified by netfilter and QoS managements.