Re: [quicwg/base-drafts] Server sends a PING-only packet if it's limited (#3162)

martinduke <notifications@github.com> Wed, 05 February 2020 13:42 UTC

Return-Path: <noreply@github.com>
X-Original-To: quic-issues@ietfa.amsl.com
Delivered-To: quic-issues@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id BD53C120805 for <quic-issues@ietfa.amsl.com>; Wed, 5 Feb 2020 05:42:24 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -3.754
X-Spam-Level:
X-Spam-Status: No, score=-3.754 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_IMAGE_ONLY_20=1.546, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_MED=-2.3, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (1024-bit key) header.d=github.com
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id t5qE7L_JWhpE for <quic-issues@ietfa.amsl.com>; Wed, 5 Feb 2020 05:42:22 -0800 (PST)
Received: from out-28.smtp.github.com (out-28.smtp.github.com [192.30.252.211]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 16DB6120026 for <quic-issues@ietf.org>; Wed, 5 Feb 2020 05:42:22 -0800 (PST)
Received: from github-lowworker-39ac79b.ac4-iad.github.net (github-lowworker-39ac79b.ac4-iad.github.net [10.52.18.15]) by smtp.github.com (Postfix) with ESMTP id 63D0C8C0061 for <quic-issues@ietf.org>; Wed, 5 Feb 2020 05:42:20 -0800 (PST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1580910140; bh=a81Rr7UopnjDS/V0AReOMyxij4mHv7nZOg6kmzzhMtk=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=edeDDlg3hPonTppbGdI9RlhExT0dVVqkw3VzbQ2SHGkk7r6KAgz3pfTt0acSB1Y5A 3bS+qSMzBw9vyksg3I5T3F4qzDjiCSKqtwQle+AjodwyMACyVM0ILI8Dz2lDSnEaOq 1AZi5hjZX8iTpiAJueQ6V/6QfjSR0pgJMBN6e75g=
Date: Wed, 05 Feb 2020 05:42:20 -0800
From: martinduke <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+AFTOJK347NYJEDXNKOPCZ3V4I74LZEVBNHHB5GXGIA@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/3162/c582412573@github.com>
In-Reply-To: <quicwg/base-drafts/pull/3162@github.com>
References: <quicwg/base-drafts/pull/3162@github.com>
Subject: Re: [quicwg/base-drafts] Server sends a PING-only packet if it's limited (#3162)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5e3ac63c563a3_57e13fabb56cd96414143d"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: martinduke
X-GitHub-Recipient: quic-issues
X-GitHub-Reason: subscribed
X-Auto-Response-Suppress: All
X-GitHub-Recipient-Address: quic-issues@ietf.org
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/vfFbOTYDAiEbR27cFxRkW1lL6MQ>
X-BeenThere: quic-issues@ietf.org
X-Mailman-Version: 2.1.29
List-Id: Notification list for GitHub issues related to the QUIC WG <quic-issues.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/quic-issues/>
List-Post: <mailto:quic-issues@ietf.org>
List-Help: <mailto:quic-issues-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/quic-issues>, <mailto:quic-issues-request@ietf.org?subject=subscribe>
X-List-Received-Date: Wed, 05 Feb 2020 13:42:25 -0000

It looks like this isn't going anywhere, but I want to record that this PR will result in a deadlock. If all the client's handshake packets are lost, it will already have discarded the Initial Keys and it therefore can't process an Initial PING. The server needs to send a Handshake PING as well.

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/quicwg/base-drafts/pull/3162#issuecomment-582412573