IETF Logo Mail Archive

Re: [quicwg/base-drafts] Small clarification in 12.2 Coalescing Packets (#2900)

Nick Banks <notifications@github.com> Tue, 16 July 2019 01:08 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 5D36312014A for <quic-issues@ietfa.amsl.com>; Mon, 15 Jul 2019 18:08:46 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -6.381
X-Spam-Level:
X-Spam-Status: No, score=-6.381 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_24=1.618, HTML_MESSAGE=0.001, MAILING_LIST_MULTI=-1, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, URIBL_BLOCKED=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 9yROpcIOXRSO for <quic-issues@ietfa.amsl.com>; Mon, 15 Jul 2019 18:08:44 -0700 (PDT)
Received: from out-17.smtp.github.com (out-17.smtp.github.com [192.30.252.200]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 1196912015D for <quic-issues@ietf.org>; Mon, 15 Jul 2019 18:08:44 -0700 (PDT)
Date: Mon, 15 Jul 2019 18:08:43 -0700
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=github.com; s=pf2014; t=1563239323; bh=lLK6kxBJ+4x4kkSKI0oETsW2FWz6kHxybQvOZPrO8OY=; h=Date:From:Reply-To:To:Cc:In-Reply-To:References:Subject:List-ID: List-Archive:List-Post:List-Unsubscribe:From; b=SLs1B2jLxtd2yzy5j9CAvz8Q95KxKhvVj+Ca5c1cO7Cn/LohHqi1qz6PfIAqEwKM8 3lSCSQeDUAbvF4CR+EQAdlVzT2ZMX3M7qeIW0Q0cxd5DcjMIVS032eeo4k6U6GlZVY H7uSAYj3mh7QkYIdBlBdeASdueDzcG8m9jnrMwXs=
From: Nick Banks <notifications@github.com>
Reply-To: quicwg/base-drafts <reply+AFTOJK7P3O3VHIKHJZEBJDV3HJLBXEVBNHHBX2UGWQ@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/2900/511624594@github.com>
In-Reply-To: <quicwg/base-drafts/issues/2900@github.com>
References: <quicwg/base-drafts/issues/2900@github.com>
Subject: Re: [quicwg/base-drafts] Small clarification in 12.2 Coalescing Packets (#2900)
Mime-Version: 1.0
Content-Type: multipart/alternative; boundary="--==_mimepart_5d2d239b1f780_599e3f8ae92cd964396877"; charset="UTF-8"
Content-Transfer-Encoding: 7bit
Precedence: list
X-GitHub-Sender: nibanks
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/3D1kl5f99q6HUe8U0F0GdXY9C4Y>
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: Tue, 16 Jul 2019 01:08:47 -0000

https://tools.ietf.org/html/draft-ietf-quic-transport-22#section-12.2 states:

> The length of the Payload field is learned once header protection is removed.

If you can't remove header protection, then you can't process any additional coalesced packets in the datagram because you don't know the length of the current packet.

-- 
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/issues/2900#issuecomment-511624594

v2.30.2 | Report a Bug | By Email | System Status