HTTP-initiated Network Tunnelling (HiNT)
draft-pardue-httpbis-http-network-tunnelling-00

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httpbis                                                        L. Pardue
Internet-Draft                                BBC Research & Development
Intended status: Informational                             July 02, 2018
Expires: January 3, 2019

                HTTP-initiated Network Tunnelling (HiNT)
            draft-pardue-httpbis-http-network-tunnelling-00

Abstract

   The HTTP CONNECT method allows an HTTP client to initiate, via a
   proxy, a TCP-based tunnel to a single destination origin.  This memo
   explores options for expanding HTTP-initiated Network Tunnelling
   (HiNT) to cater for diverse UDP and IP associations.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on January 3, 2019.

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   Copyright (c) 2018 IETF Trust and the persons identified as the
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Pardue                   Expires January 3, 2019                [Page 1]
Internet-Draft  HTTP-initiated Network Tunnelling (HiNT)       July 2018

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Notational Conventions  . . . . . . . . . . . . . . . . . . .   5
     2.1.  Definitions . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  Design Consideration Aspects  . . . . . . . . . . . . . . . .   6
     3.1.  HTTP Version  . . . . . . . . . . . . . . . . . . . . . .   6
     3.2.  HTTP Forward Proxying . . . . . . . . . . . . . . . . . .   6
     3.3.  Message Destination Agility . . . . . . . . . . . . . . .   6
     3.4.  Path MTU Discovery  . . . . . . . . . . . . . . . . . . .   7
     3.5.  Blind forwarding vs. in-the-loop Processing . . . . . . .   7
     3.6.  Head-of-line Blocking . . . . . . . . . . . . . . . . . .   7
   4.  Candidate Solutions . . . . . . . . . . . . . . . . . . . . .   8
     4.1.  CONNECT Method Augmentation . . . . . . . . . . . . . . .   8
     4.2.  UDPASSOCIATE with HINT Frames for HTTP/2 and HTTP/QUIC  .   8
     4.3.  HELIUM over WebSockets for all HTTP Versions  . . . . . .   8
     4.4.  HELIUM over WebSockets for HTTP/1.1, Native Framing for
           HTTP/2 or HTTP/QUIC . . . . . . . . . . . . . . . . . . .   8
   5.  Technical Specification for HiNT Requests . . . . . . . . . .   9
     5.1.  The UDPASSOCIATE Method for HTTP/1.1x . . . . . . . . . .   9
     5.2.  The UDPASSOCIATE Method for HTTP/2 and HTTP/QUIC  . . . .  10
     5.3.  The IPASSOCIATE Method  . . . . . . . . . . . . . . . . .  11
   6.  Technical Specification for HiNT Message Transfer . . . . . .  11
     6.1.  HiNT Message Framing  . . . . . . . . . . . . . . . . . .  11
       6.1.1.  The HINT HTTP/2 Frame . . . . . . . . . . . . . . . .  12
       6.1.2.  The HINT HTTP/QUIC Frame  . . . . . . . . . . . . . .  13
     6.2.  Light HIP HTTP/2 Framing  . . . . . . . . . . . . . . . .  13
     6.3.  Full HIP HTTP/2 Framing . . . . . . . . . . . . . . . . .  14
       6.3.1.  The OHIP HTTP/2 Frame . . . . . . . . . . . . . . . .  15
       6.3.2.  The IHIP HTTP/2 Frame . . . . . . . . . . . . . . . .  16
       6.3.3.  The MHIP HTTP/2 Frame . . . . . . . . . . . . . . . .  17
   7.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   8.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  20
     8.1.  UDPASSOCIATE Method Registration  . . . . . . . . . . . .  20
     8.2.  IPASSOCIATE Method Registration . . . . . . . . . . . . .  20
     8.3.  The HINT HTTP/2 Frame Type  . . . . . . . . . . . . . . .  20
     8.4.  The HINT HTTP/QUIC Frame Type . . . . . . . . . . . . . .  20
     8.5.  The HIP HTTP/2 Frame Type . . . . . . . . . . . . . . . .  21
     8.6.  The OHIP HTTP/2 Frame Type  . . . . . . . . . . . . . . .  21
     8.7.  The IHIP HTTP/2 Frame Type  . . . . . . . . . . . . . . .  21
     8.8.  The MHIP HTTP/2 Frame Type  . . . . . . . . . . . . . . .  21