From owner-freebsd-hackers@FreeBSD.ORG Tue Jan 27 18:46:12 2004 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 9AFB416A4CE; Tue, 27 Jan 2004 18:46:12 -0800 (PST) Received: from arginine.spc.org (arginine.spc.org [195.206.69.236]) by mx1.FreeBSD.org (Postfix) with ESMTP id B922A43D46; Tue, 27 Jan 2004 18:46:10 -0800 (PST) (envelope-from bms@spc.org) Received: from localhost (localhost [127.0.0.1]) by arginine.spc.org (Postfix) with ESMTP id F323C6549E; Wed, 28 Jan 2004 02:46:08 +0000 (GMT) Received: from arginine.spc.org ([127.0.0.1]) by localhost (arginine.spc.org [127.0.0.1]) (amavisd-new, port 10024) with LMTP id 60062-04-3; Wed, 28 Jan 2004 02:46:08 +0000 (GMT) Received: from saboteur.dek.spc.org (82-147-17-88.dsl.uk.rapidplay.com [82.147.17.88]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by arginine.spc.org (Postfix) with ESMTP id E9852654D5; Wed, 28 Jan 2004 02:46:07 +0000 (GMT) Received: by saboteur.dek.spc.org (Postfix, from userid 1001) id 227DED0; Wed, 28 Jan 2004 02:46:07 +0000 (GMT) Date: Wed, 28 Jan 2004 02:46:07 +0000 From: Bruce M Simpson To: Mike Silbersack Message-ID: <20040128024606.GB707@saboteur.dek.spc.org> References: <20040125131053.X873@odysseus.silby.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20040125131053.X873@odysseus.silby.com> cc: Max Laier cc: hackers@freebsd.org cc: Robert Watson Subject: Re: XL driver checksum producing corrupted but checksum-correct packets X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 28 Jan 2004 02:46:12 -0000 On Sun, Jan 25, 2004 at 01:13:28PM -0600, Mike Silbersack wrote: > I suppose that one thing we could do in the long run to help detect this > sort of corruption would be to import OpenBSD's TCP MD5 support and ensure > that packets which fail the md5 or fail the checksum are logged so that > they can be investigated. > > Of course, that's adding data to the packet, and heisenberg wouldn't be > too happy about that. :) I'm porting this right now. It's a bit different for us... BMS