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=-4.2 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,NICE_REPLY_A,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 689A7C5519F for ; Fri, 20 Nov 2020 03:55:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E3BF421D40 for ; Fri, 20 Nov 2020 03:55:48 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="CIAutkwn" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726593AbgKTDvQ (ORCPT ); Thu, 19 Nov 2020 22:51:16 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46412 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726100AbgKTDvP (ORCPT ); Thu, 19 Nov 2020 22:51:15 -0500 Received: from mail-il1-x143.google.com (mail-il1-x143.google.com [IPv6:2607:f8b0:4864:20::143]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B97C2C0613CF; Thu, 19 Nov 2020 19:51:15 -0800 (PST) Received: by mail-il1-x143.google.com with SMTP id x18so7406010ilq.4; Thu, 19 Nov 2020 19:51:15 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=subject:to:cc:references:from:message-id:date:user-agent :mime-version:in-reply-to:content-language:content-transfer-encoding; bh=kY4x9mQQrH7WfgJTVe8rHex4hcGvcT2R/+KC5btfYtA=; b=CIAutkwn7G6PdBi0RY4HaZ/5mtdSpCrkjsVyicUvywCGw54Alost0yQhE0bjDU+b0B VhwiZBSEooNUCeqYvyDxEuBQVg3/MBlSKglagCRpoDZIyZHum+1pyLIWw8PV8GtvYqcH 9Q6OmpCI15xIfSOtnka6xmTv6ftBBqhtOqh4yoAWuCvVQLQgInOdV3qCnTKWRWxOu1qQ 0Str1PW7Z7ME9qAx3FM109Svwi7nuDIirfBo8Uws4fUT6ZAAP8T84FOHFk4jYMXKaeWL HKU8PGvrBLXwD1Y9E+4ourrwTGdX60avC+X8HsZuMyLygP8BGePoXur6e4yQYBO3ywwC mAow== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:subject:to:cc:references:from:message-id:date :user-agent:mime-version:in-reply-to:content-language :content-transfer-encoding; bh=kY4x9mQQrH7WfgJTVe8rHex4hcGvcT2R/+KC5btfYtA=; b=pbvDIcv3fPZnzldA6Kyy9xCZvKX99jIjlUaqvP5L1N5Z3qQNKrDt4UEW+pzCGXrBoY r49cCPiTFKAIsfqQQn/sFuUkwNjiwzko/Gtwg4fa0y+pnUMmpjMa5MwW/Lcc7tnvXm73 xm27xima5dSl0hqgkuNKCAVFdhvR6qGDLhji5UohGlSkHaiofZWuzwH7qnIa3iubTUmL Jj6S/otPLcZO7SxAtjQ0BoeRVhIlNnTmcM6q2oW9ce7/HwC/F1+9vASDUt6dn9pgcn9Y 6UtxuOaEHf1xFr/2br27JEjc0UPADGjulUlX29kfzDo+XCamrkZg3XxXcmAIvJwd6ApI HKdA== X-Gm-Message-State: AOAM532rimVhY1M4Y7t6BCi1/D9rm19v1Byc/axyylpT7jnOC6w4OsIB gIjcX/am0/iekHW6rfmZrB0ngxx9uis= X-Google-Smtp-Source: ABdhPJxN9gjnttLFHOvRBU7juFTdH57kB1XEDhJN0YrJFPWTUalnx0BrG59/3iExNrh25aqEMocgXQ== X-Received: by 2002:a92:d11:: with SMTP id 17mr24857773iln.84.1605844274782; Thu, 19 Nov 2020 19:51:14 -0800 (PST) Received: from Davids-MacBook-Pro.local ([2601:282:800:dc80:7c5d:d56d:e694:8d47]) by smtp.googlemail.com with ESMTPSA id k26sm699496iom.32.2020.11.19.19.51.13 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 19 Nov 2020 19:51:13 -0800 (PST) Subject: Re: [PATCH v4 net-next 0/3] add support for sending RFC8335 PROBE To: Andreas Roeseler , davem@davemloft.net Cc: kuznet@ms2.inr.ac.ru, yoshfuji@linux-ipv6.org, kuba@kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org References: From: David Ahern Message-ID: Date: Thu, 19 Nov 2020 20:51:12 -0700 User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:78.0) Gecko/20100101 Thunderbird/78.4.3 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/17/20 5:46 PM, Andreas Roeseler wrote: > The popular utility ping has several severe limitations such as the > inability to query specific interfaces on a node and requiring > bidirectional connectivity between the probing and the probed > interfaces. RFC8335 attempts to solve these limitations by creating the > new utility PROBE which is a specialized ICMP message that makes use of > the ICMP Extension Structure outlined in RFC4884. > > This patchset adds definitions for the ICMP Extended Echo Request and > Reply (PROBE) types for both IPv4 and IPv6. It also expands the list of > supported ICMP messages to accommodate PROBEs. > You are updating the send, but what about the response side?