Re: [quicwg/base-drafts] allow dropping of Initial packets with invalid reserved bits (#2053)

Martin Thomson <notifications@github.com> Mon, 26 November 2018 23:25 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 6CA99131065 for <quic-issues@ietfa.amsl.com>; Mon, 26 Nov 2018 15:25:45 -0800 (PST)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -9.46
X-Spam-Level:
X-Spam-Status: No, score=-9.46 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.46, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, 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 csK5-lMsxDcm for <quic-issues@ietfa.amsl.com>; Mon, 26 Nov 2018 15:25:44 -0800 (PST)
Received: from out-2.smtp.github.com (out-2.smtp.github.com [192.30.252.193]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id E5025131058 for <quic-issues@ietf.org>; Mon, 26 Nov 2018 15:25:43 -0800 (PST)
Date: Mon, 26 Nov 2018 15:25:43 -0800
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1543274743; bh=5cpmMqyT9Ss6ci4A5MnLAQejiBDHz4gizAt9Z4zMCyI=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=Tbehl3ffH8koEMMBWL6PRIVdiGTbIJWxHd7hAsheO1EN7t7JbvOjBLsWqGlTS7ltq dVN2TXj49qnH2hR1D/1uzwqhbknLu3E8JUQiP265CTYd6KY/8AAXdCohqopuFp3EjP EdLX++gL9GmRohYZNvgi/RtilwD0pMaoklqmyW38=
From: Martin Thomson <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+0166e4ab16c6fb44702b8615cf2f55400ac830a3c0f66ae592cf00000001181442f792a169ce16e78b2d@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/pull/2053/c441839303@github.com>
In-Reply-To: <quicwg/base-drafts/pull/2053@github.com>
References: <quicwg/base-drafts/pull/2053@github.com>
Subject: Re: [quicwg/base-drafts] allow dropping of Initial packets with invalid reserved bits (#2053)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5bfc80f72adaf_238e3fc6488d45c05963c"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: martinthomson
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/nS3wpIrUptLbhzFEsQmKaJDB2sE>
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: Mon, 26 Nov 2018 23:25:45 -0000

If this is the position we take, then we should apply the rules more broadly.  Namely, allow an endpoint to drop any unauthenticated packet (Initial, VN, and Retry) that is invalid, provided that they haven't already committed changes to their state that cannot be reversed.  Patching changes in piecemeal are problematic.

-- 
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/2053#issuecomment-441839303