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=-3.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SIGNED_OFF_BY,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 5D4D6C433E0 for ; Thu, 28 May 2020 18:03:05 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 491DC20829 for ; Thu, 28 May 2020 18:03:05 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391398AbgE1SDC (ORCPT ); Thu, 28 May 2020 14:03:02 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47096 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2391390AbgE1SDA (ORCPT ); Thu, 28 May 2020 14:03:00 -0400 Received: from shards.monkeyblade.net (shards.monkeyblade.net [IPv6:2620:137:e000::1:9]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 130B4C08C5C7 for ; Thu, 28 May 2020 11:03:00 -0700 (PDT) Received: from localhost (unknown [IPv6:2601:601:9f00:477::3d5]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (Client did not present a certificate) (Authenticated sender: davem-davemloft) by shards.monkeyblade.net (Postfix) with ESMTPSA id B976E12959D58; Thu, 28 May 2020 11:02:59 -0700 (PDT) Date: Thu, 28 May 2020 11:02:59 -0700 (PDT) Message-Id: <20200528.110259.1344103793250434137.davem@davemloft.net> To: edumazet@google.com Cc: netdev@vger.kernel.org, eric.dumazet@gmail.com, ncardwell@google.com, ycheng@google.com Subject: Re: [PATCH net-next] tcp: ipv6: support RFC 6069 (TCP-LD) From: David Miller In-Reply-To: <20200528003458.90435-1-edumazet@google.com> References: <20200528003458.90435-1-edumazet@google.com> X-Mailer: Mew version 6.8 on Emacs 26.3 Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Thu, 28 May 2020 11:02:59 -0700 (PDT) Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Eric Dumazet Date: Wed, 27 May 2020 17:34:58 -0700 > Make tcp_ld_RTO_revert() helper available to IPv6, and > implement RFC 6069 : > > Quoting this RFC : > > 3. Connectivity Disruption Indication > > For Internet Protocol version 6 (IPv6) [RFC2460], the counterpart of > the ICMP destination unreachable message of code 0 (net unreachable) > and of code 1 (host unreachable) is the ICMPv6 destination > unreachable message of code 0 (no route to destination) [RFC4443]. > As with IPv4, a router should generate an ICMPv6 destination > unreachable message of code 0 in response to a packet that cannot be > delivered to its destination address because it lacks a matching > entry in its routing table. > > Signed-off-by: Eric Dumazet Applied, thanks Eric.