WebTransport over HTTP/3
draft-ietf-webtrans-http3-00
Network Working Group V. Vasiliev
Internet-Draft Google
Intended status: Standards Track 17 February 2021
Expires: 21 August 2021
WebTransport over HTTP/3
draft-ietf-webtrans-http3-00
Abstract
WebTransport [OVERVIEW] is a protocol framework that enables clients
constrained by the Web security model to communicate with a remote
server using a secure multiplexed transport. This document describes
a WebTransport protocol that is based on HTTP/3 [HTTP3] and provides
support for unidirectional streams, bidirectional streams and
datagrams, all multiplexed within the same HTTP/3 connection.
Note to Readers
Discussion of this draft takes place on the WebTransport mailing list
(webtransport@ietf.org), which is archived at
<https://mailarchive.ietf.org/arch/search/?email_list=webtransport>.
The repository tracking the issues for this draft can be found at
<https://github.com/ietf-wg-webtrans/draft-ietf-webtrans-http3/
issues>. The web API draft corresponding to this document can be
found at <https://w3c.github.io/webtransport/>.
Status of This Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on 21 August 2021.
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Copyright Notice
Copyright (c) 2021 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents (https://trustee.ietf.org/
license-info) in effect on the date of publication of this document.
Please review these documents carefully, as they describe your rights
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Terminology . . . . . . . . . . . . . . . . . . . . . . . 3
2. Protocol Overview . . . . . . . . . . . . . . . . . . . . . . 3
3. Session Establishment . . . . . . . . . . . . . . . . . . . . 4
3.1. Establishing a Transport-Capable HTTP/3 Connection . . . 4
3.2. Extended CONNECT in HTTP/3 . . . . . . . . . . . . . . . 4
3.3. Creating a New Session . . . . . . . . . . . . . . . . . 5
3.4. Limiting the Number of Simultaneous Sessions . . . . . . 5
4. WebTransport Features . . . . . . . . . . . . . . . . . . . . 6
4.1. Unidirectional streams . . . . . . . . . . . . . . . . . 6
4.2. Client-Initiated Bidirectional Streams . . . . . . . . . 6
4.3. Server-Initiated Bidirectional Streams . . . . . . . . . 7
4.4. Datagrams . . . . . . . . . . . . . . . . . . . . . . . . 7
5. Session Termination . . . . . . . . . . . . . . . . . . . . . 8
6. Security Considerations . . . . . . . . . . . . . . . . . . . 8
7. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 9
7.1. Upgrade Token Registration . . . . . . . . . . . . . . . 9
7.2. HTTP/3 SETTINGS Parameter Registration . . . . . . . . . 9
7.3. Frame Type Registration . . . . . . . . . . . . . . . . . 9
7.4. Stream Type Registration . . . . . . . . . . . . . . . . 10
8. References . . . . . . . . . . . . . . . . . . . . . . . . . 10
8.1. Normative References . . . . . . . . . . . . . . . . . . 10
8.2. Informative References . . . . . . . . . . . . . . . . . 12
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 12
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1. Introduction
HTTP/3 [HTTP3] is a protocol defined on top of QUIC [QUIC-TRANSPORT]
that can multiplex HTTP requests over a QUIC connection. This
document defines a mechanism for multiplexing non-HTTP data with
HTTP/3 in a manner that conforms with the WebTransport protocol
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