The WebSocket Protocol as a Transport for the Message Session Relay Protocol (MSRP)
draft-pd-dispatch-msrp-websocket-01

The information below is for an old version of the document
Document Type Active Internet-Draft (individual)
Last updated 2013-01-08
Stream (None)
Intended RFC status (None)
Formats plain text pdf html bibtex
Reviews
Stream Stream state (No stream defined)
Consensus Boilerplate Unknown
RFC Editor Note (None)
IESG IESG state I-D Exists
Telechat date
Responsible AD (None)
Send notices to (None)
Dispatch Working Group                                        P. Dunkley
Internet-Draft                                              G. Llewellyn
Updates: 4975, 4976 (if approved)                      Crocodile RCS Ltd
Intended status: Standards Track                              V. Pascual
Expires: July 12, 2013                                       Acme Packet
                                                         January 8, 2013

  The WebSocket Protocol as a Transport for the Message Session Relay
                            Protocol (MSRP)
                  draft-pd-dispatch-msrp-websocket-01

Abstract

   The WebSocket protocol enables two-way real-time communication
   between clients and servers.  This document specifies a new WebSocket
   sub-protocol as a reliable transport mechanism between MSRP (Message
   Session Relay Protocol) clients and relays to enable usage of MSRP in
   new scenarios.  This document normatively updates RFC 4975 and RFC
   4976.

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 http://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 July 12, 2013.

Copyright Notice

   Copyright (c) 2013 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
   (http://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 and restrictions with respect

Dunkley, et al.           Expires July 12, 2013                 [Page 1]
Internet-Draft      WebSocket as a Transport for MSRP       January 2013

   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.  Terminology  . . . . . . . . . . . . . . . . . . . . . . . . .  3
     2.1.  Definitions  . . . . . . . . . . . . . . . . . . . . . . .  3
   3.  The WebSocket Protocol . . . . . . . . . . . . . . . . . . . .  4
   4.  The WebSocket MSRP Sub-Protocol  . . . . . . . . . . . . . . .  4
     4.1.  Handshake  . . . . . . . . . . . . . . . . . . . . . . . .  5
     4.2.  MSRP encoding  . . . . . . . . . . . . . . . . . . . . . .  5
   5.  MSRP WebSocket Transport . . . . . . . . . . . . . . . . . . .  5
     5.1.  General  . . . . . . . . . . . . . . . . . . . . . . . . .  6
     5.2.  Updates to RFC 4975  . . . . . . . . . . . . . . . . . . .  6
       5.2.1.  MSRP URI Transport Parameter . . . . . . . . . . . . .  6
       5.2.2.  SDP Transport Protocol . . . . . . . . . . . . . . . .  6
     5.3.  Updates to RFC 4976  . . . . . . . . . . . . . . . . . . .  7
       5.3.1.  AUTH Request Authentication  . . . . . . . . . . . . .  7
       5.3.2.  Use of TLS . . . . . . . . . . . . . . . . . . . . . .  7
   6.  Connection Keep Alive  . . . . . . . . . . . . . . . . . . . .  7
   7.  Authentication . . . . . . . . . . . . . . . . . . . . . . . .  8
   8.  Examples . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
     8.1.  AUTH . . . . . . . . . . . . . . . . . . . . . . . . . . .  8
     8.2.  SDP exchange (MSRP WebSocket Client to MSRP Client)  . . . 10
     8.3.  SEND (MSRP WebSocket Client to MSRP Client)  . . . . . . . 11
     8.4.  SEND (MSRP Client to MSRP WebSocket Client)  . . . . . . . 14
     8.5.  SEND (MSRP WebSocket Client to MSRP WebSocket Client)  . . 16
   9.  Security Considerations  . . . . . . . . . . . . . . . . . . . 18
     9.1.  Secure WebSocket Connection  . . . . . . . . . . . . . . . 18
   10. IANA Considerations  . . . . . . . . . . . . . . . . . . . . . 18
     10.1. Registration of the WebSocket MSRP Sub-Protocol  . . . . . 18
   11. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 18
   12. References . . . . . . . . . . . . . . . . . . . . . . . . . . 19
     12.1. Normative References . . . . . . . . . . . . . . . . . . . 19
     12.2. Informative References . . . . . . . . . . . . . . . . . . 19
   Appendix A.  Implementation Guidelines . . . . . . . . . . . . . . 20
     A.1.  MSRP WebSocket Client Considerations . . . . . . . . . . . 20
   Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 20
Show full document text