From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.1 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06EADC433DF for ; Thu, 15 Oct 2020 19:47:55 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9FAA7206DD for ; Thu, 15 Oct 2020 19:47:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602791274; bh=OKj5OghpJrPlsoA9aCuGSDcJqT/RXPzJFqtejR5rWx0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:List-ID:From; b=utbt/y0vU4+NIrGgELhh2KfC1Nv7ItsxHlXniuabMOlS8AX9ZJFp+O4gYr9flaGbW 5Kfah0LWGSaf8sMseiMCC75wDXC6PFW3c3Bz+EJR78Eo3ZSAQP1z4OPF3HToYBFOer 1XOtu118Tg0LvsdIG4uqFBcWW3gjNTmyGUSfMjIo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391894AbgJOTrw (ORCPT ); Thu, 15 Oct 2020 15:47:52 -0400 Received: from mail.kernel.org ([198.145.29.99]:33634 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391890AbgJOTrv (ORCPT ); Thu, 15 Oct 2020 15:47:51 -0400 Received: from kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com (unknown [163.114.132.5]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 79571206DD; Thu, 15 Oct 2020 19:47:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1602791270; bh=OKj5OghpJrPlsoA9aCuGSDcJqT/RXPzJFqtejR5rWx0=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=pjUMw+Ysxlpi9c+zVluPvSvHulTuNDWb3rDmUpG7CdiEDvOrJhRp4FvbWlb3suRoE UIxvUSpJqbF9RRWuuLCCDpVJpdnPVAcR6sykUgrzytDisRGkdVTL9I2U+f3XvoRLZE PTEt4BCNJ68zSpvnaWM2Uy1h1oy6KqEbtx3yaZXE= Date: Thu, 15 Oct 2020 12:47:48 -0700 From: Jakub Kicinski To: Pablo Neira Ayuso Cc: netfilter-devel@vger.kernel.org, davem@davemloft.net, netdev@vger.kernel.org Subject: Re: [PATCH net-next,v2 0/9] netfilter: flowtable bridge and vlan enhancements Message-ID: <20201015124748.7793cbda@kicinski-fedora-pc1c0hjn.dhcp.thefacebook.com> In-Reply-To: <20201015163038.26992-1-pablo@netfilter.org> References: <20201015163038.26992-1-pablo@netfilter.org> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org On Thu, 15 Oct 2020 18:30:29 +0200 Pablo Neira Ayuso wrote: > The following patchset adds infrastructure to augment the Netfilter > flowtable fastpath [1] to support for local network topologies that > combine IP forwarding, bridge and vlan devices. > > A typical scenario that can benefit from this infrastructure is composed > of several VMs connected to bridge ports where the bridge master device > 'br0' has an IP address. A DHCP server is also assumed to be running to > provide connectivity to the VMs. The VMs reach the Internet through > 'br0' as default gateway, which makes the packet enter the IP forwarding > path. Then, netfilter is used to NAT the packets before they leave to > through the wan device. Hi Pablo, I should have looked at this closer yesterday, but I think it warrants a little more review than we can afford right now. Let's take it after the merge window, sorry!