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=-5.2 required=3.0 tests=BAYES_00, 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 40373C433B4 for ; Tue, 13 Apr 2021 13:45:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 10DBB611F0 for ; Tue, 13 Apr 2021 13:45:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1345168AbhDMNpk (ORCPT ); Tue, 13 Apr 2021 09:45:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49608 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1344847AbhDMNpk (ORCPT ); Tue, 13 Apr 2021 09:45:40 -0400 Received: from Chamillionaire.breakpoint.cc (Chamillionaire.breakpoint.cc [IPv6:2a0a:51c0:0:12e:520::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6BB91C061574 for ; Tue, 13 Apr 2021 06:45:20 -0700 (PDT) Received: from fw by Chamillionaire.breakpoint.cc with local (Exim 4.92) (envelope-from ) id 1lWJLx-00067R-Qs; Tue, 13 Apr 2021 15:45:17 +0200 Date: Tue, 13 Apr 2021 15:45:17 +0200 From: Florian Westphal To: Ali Abdallah Cc: Florian Westphal , netfilter-devel@vger.kernel.org Subject: Re: [PATCH] conntrack_tcp: Reset the max ACK flag on SYN in ignore state Message-ID: <20210413134517.GC14932@breakpoint.cc> References: <20210408061203.35kbl44elgz4resh@Fryzen495> <20210408090459.GQ13699@breakpoint.cc> <20210413122436.aejo4pwaafwrlzsh@Fryzen495> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20210413122436.aejo4pwaafwrlzsh@Fryzen495> User-Agent: Mutt/1.10.1 (2018-07-13) Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org Ali Abdallah wrote: > Hi, > > Please find out the updated patch with the fixed comment. > > PS: I'm just wondering if isn't better to just reset the MAXACK_SET on > both directions once an RST is observed on the tracked connection, what > do you think? Mhh, can you share a patch? Your patch clears it when a SYN is observed, so I am not sure what you mean. I think the patch is good; we only need to handle the case where we let a SYN through, and might be out of state. So, we only need to handle the reply dir, no?