Date: Fri, 04 May 2018 17:39:05 +0000 (UTC)
From: Lars Eggert <notifications@github.com>
Reply-To: quicwg/base-drafts
 <reply+0166e4abac213d3ffdd8256788d9ca100d94ec18e97cb03b92cf0000000117045cb992a169ce13186634@reply.github.com>
To: quicwg/base-drafts <base-drafts@noreply.github.com>
Cc: Subscribed <subscribed@noreply.github.com>
Message-ID: <quicwg/base-drafts/issues/1338@github.com>
Subject: [quicwg/base-drafts] Payload length zero = "to end of UDP packet"
 (#1338)
Mime-Version: 1.0
Content-Type: multipart/alternative;
 boundary="--==_mimepart_5aec9ab9723f1_1514b3fb6f7430f8810141d";
 charset=UTF-8
Content-Transfer-Encoding: 7bit
Precedence: list
categories: subscribed
Archived-At: <https://mailarchive.ietf.org/arch/msg/quic-issues/JqrF3XRDv6T5cvlPkvZGst--8UQ>

----==_mimepart_5aec9ab9723f1_1514b3fb6f7430f8810141d
Content-Type: text/plain;
 charset=UTF-8
Content-Transfer-Encoding: 7bit

Is there any reason why an encoding for the payload length wasn't chosen that would allow something like setting it to zero mean "QUIC packet extends to end of UDP packet"? 

That would make it more straightforward to encode non-coalesced long-header packets, where the payload length may not be known by the time the packet header is being encoded.

-- 
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/1338
----==_mimepart_5aec9ab9723f1_1514b3fb6f7430f8810141d
Content-Type: text/html;
 charset=UTF-8
Content-Transfer-Encoding: 7bit

<p>Is there any reason why an encoding for the payload length wasn't chosen that would allow something like setting it to zero mean "QUIC packet extends to end of UDP packet"?</p>
<p>That would make it more straightforward to encode non-coalesced long-header packets, where the payload length may not be known by the time the packet header is being encoded.</p>

<p style="font-size:small;-webkit-text-size-adjust:none;color:#666;">&mdash;<br />You are receiving this because you are subscribed to this thread.<br />Reply to this email directly, <a href="https://github.com/quicwg/base-drafts/issues/1338">view it on GitHub</a>, or <a href="https://github.com/notifications/unsubscribe-auth/AWbkqye8eCU2LGsCeLK7R2irYo0UOkTIks5tvJI5gaJpZM4TzBGA">mute the thread</a>.<img src="https://github.com/notifications/beacon/AWbkq5MvrRBGXnc5sAPWFssmJqei41Mvks5tvJI5gaJpZM4TzBGA.gif" height="1" width="1" alt="" /></p>
<div itemscope itemtype="http://schema.org/EmailMessage">
<div itemprop="action" itemscope itemtype="http://schema.org/ViewAction">
  <link itemprop="url" href="https://github.com/quicwg/base-drafts/issues/1338"></link>
  <meta itemprop="name" content="View Issue"></meta>
</div>
<meta itemprop="description" content="View this Issue on GitHub"></meta>
</div>

<script type="application/json" data-scope="inboxmarkup">{"api_version":"1.0","publisher":{"api_key":"05dde50f1d1a384dd78767c55493e4bb","name":"GitHub"},"entity":{"external_key":"github/quicwg/base-drafts","title":"quicwg/base-drafts","subtitle":"GitHub repository","main_image_url":"https://cloud.githubusercontent.com/assets/143418/17495839/a5054eac-5d88-11e6-95fc-7290892c7bb5.png","avatar_image_url":"https://cloud.githubusercontent.com/assets/143418/15842166/7c72db34-2c0b-11e6-9aed-b52498112777.png","action":{"name":"Open in GitHub","url":"https://github.com/quicwg/base-drafts"}},"updates":{"snippets":[{"icon":"DESCRIPTION","message":"Payload length zero = \"to end of UDP packet\" (#1338)"}],"action":{"name":"View Issue","url":"https://github.com/quicwg/base-drafts/issues/1338"}}}</script>
----==_mimepart_5aec9ab9723f1_1514b3fb6f7430f8810141d--