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=-2.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_SANE_1 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 834FAC35673 for ; Sun, 23 Feb 2020 22:34:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 618A320675 for ; Sun, 23 Feb 2020 22:34:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727033AbgBWWe1 (ORCPT ); Sun, 23 Feb 2020 17:34:27 -0500 Received: from Chamillionaire.breakpoint.cc ([193.142.43.52]:45768 "EHLO Chamillionaire.breakpoint.cc" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726302AbgBWWe1 (ORCPT ); Sun, 23 Feb 2020 17:34:27 -0500 Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1j5zpQ-0004Fa-Kj; Sun, 23 Feb 2020 23:34:24 +0100 Date: Sun, 23 Feb 2020 23:34:24 +0100 From: Florian Westphal To: Pablo Neira Ayuso Cc: Jeremy Sowden , Netfilter Devel Subject: Re: [PATCH nft] evaluate: don't eval unary arguments. Message-ID: <20200223223424.GZ19559@breakpoint.cc> References: <20200128184918.d663llqkrmaxyusl@salvia> <20200223221411.GA121279@azazel.net> <20200223222321.kjfsxjl6ftbcrink@salvia> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200223222321.kjfsxjl6ftbcrink@salvia> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org Pablo Neira Ayuso wrote: > On Sun, Feb 23, 2020 at 10:14:11PM +0000, Jeremy Sowden wrote: > > After giving this some thought, it occurred to me that this could be > > fixed by extending bitwise boolean operations to support a variable > > righthand operand (IIRC, before Christmas Florian suggested something > > along these lines to me in another, related context), so I've gone down > > that route. Patches to follow shortly. > > Would this require a new kernel extensions? What's the idea behind > this? Something like this: nft ... ct mark set ct mark & 0xffff0000 | meta mark & 0xffff