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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,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 35A68C433DF for ; Tue, 30 Jun 2020 16:43:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1BEE8206B6 for ; Tue, 30 Jun 2020 16:43:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389333AbgF3Qn4 (ORCPT ); Tue, 30 Jun 2020 12:43:56 -0400 Received: from correo.us.es ([193.147.175.20]:56144 "EHLO mail.us.es" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1733117AbgF3Qn4 (ORCPT ); Tue, 30 Jun 2020 12:43:56 -0400 Received: from antivirus1-rhel7.int (unknown [192.168.2.11]) by mail.us.es (Postfix) with ESMTP id C153AF2588 for ; Tue, 30 Jun 2020 18:43:54 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id B1FFADA8E8 for ; Tue, 30 Jun 2020 18:43:54 +0200 (CEST) Received: by antivirus1-rhel7.int (Postfix, from userid 99) id A79ECDA722; Tue, 30 Jun 2020 18:43:54 +0200 (CEST) Received: from antivirus1-rhel7.int (localhost [127.0.0.1]) by antivirus1-rhel7.int (Postfix) with ESMTP id A628ADA8E8; Tue, 30 Jun 2020 18:43:52 +0200 (CEST) Received: from 192.168.1.97 (192.168.1.97) by antivirus1-rhel7.int (F-Secure/fsigk_smtp/550/antivirus1-rhel7.int); Tue, 30 Jun 2020 18:43:52 +0200 (CEST) X-Virus-Status: clean(F-Secure/fsigk_smtp/550/antivirus1-rhel7.int) Received: from us.es (unknown [90.77.255.23]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: 1984lsi) by entrada.int (Postfix) with ESMTPSA id 891BB4265A2F; Tue, 30 Jun 2020 18:43:52 +0200 (CEST) Date: Tue, 30 Jun 2020 18:43:52 +0200 X-SMTPAUTHUS: auth mail.us.es From: Pablo Neira Ayuso To: Laura Garcia Liebana Cc: netfilter-devel@vger.kernel.org, devel@zevenet.com Subject: Re: [PATCH v3 nf-next] netfilter: introduce support for reject at prerouting stage Message-ID: <20200630164352.GA25902@salvia> References: <20200531202623.GA27861@nevthink> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20200531202623.GA27861@nevthink> User-Agent: Mutt/1.10.1 (2018-07-13) X-Virus-Scanned: ClamAV using ClamSMTP Sender: netfilter-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org On Sun, May 31, 2020 at 10:26:23PM +0200, Laura Garcia Liebana wrote: > REJECT statement can be only used in INPUT, FORWARD and OUTPUT > chains. This patch adds support of REJECT, both icmp and tcp > reset, at PREROUTING stage. > > The need for this patch comes from the requirement of some > forwarding devices to reject traffic before the natting and > routing decisions. > > The main use case is to be able to send a graceful termination > to legitimate clients that, under any circumstances, the NATed > endpoints are not available. This option allows clients to > decide either to perform a reconnection or manage the error in > their side, instead of just dropping the connection and let > them die due to timeout. > > It is supported ipv4, ipv6 and inet families for nft > infrastructure. Applied, thanks Laura.