Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S262640AbTIQUfF (ORCPT ); Wed, 17 Sep 2003 16:35:05 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S262676AbTIQUfF (ORCPT ); Wed, 17 Sep 2003 16:35:05 -0400 Received: from mail.jlokier.co.uk ([81.29.64.88]:19861 "EHLO mail.jlokier.co.uk") by vger.kernel.org with ESMTP id S262640AbTIQUfD (ORCPT ); Wed, 17 Sep 2003 16:35:03 -0400 Date: Wed, 17 Sep 2003 21:34:16 +0100 From: Jamie Lokier To: "Richard B. Johnson" Cc: "Raf D'Halleweyn" , Vishwas Raman , Valdis.Kletnieks@vt.edu, Linux kernel Subject: Re: Incremental update of TCP Checksum Message-ID: <20030917203416.GA3252@mail.jlokier.co.uk> References: <3F3C07E2.3000305@eternal-systems.com> <20030821134924.GJ7611@naboo> <3F675B68.8000109@eternal-systems.com> <200309161900.h8GJ0kYe019776@turing-police.cc.vt.edu> <3F67734A.8060804@eternal-systems.com> <1063769305.2801.1.camel@bigboy> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 630 Lines: 15 Richard B. Johnson wrote: > This is all wonderful. This assumes that the stuff being modified > in the packet is on well-defined boundaries, seldom the case when > you are re-writing packet data, but certainly the case if you > are re-writing an IP address. The only important boundary consideration is whether you're modifying at an odd or even byte offset into the packet. -- Jamie - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/