RTCWeb Working Group R. Jesup
Internet-Draft Mozilla
Intended status: Standards Track S. Loreto
Expires: August 30, 2013 Ericsson
M. Tuexen
Muenster Univ. of Appl. Sciences
February 26, 2013
WebRTC Data Channel Protocol
draft-jesup-rtcweb-data-protocol-04.txt
Abstract
The Web Real-Time Communication (WebRTC) working group is charged to
provide protocols to support for direct interactive rich
communication using audio, video, and data between two peers' web-
browsers. This document specifies an actual (minor) protocol for how
the JS-layer DataChannel objects provide the data channels between
the peers.
Status of this Memo
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This Internet-Draft will expire on August 30, 2013.
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . . 3
4. Protocol Overview . . . . . . . . . . . . . . . . . . . . . . . 3
5. Opening Handshake . . . . . . . . . . . . . . . . . . . . . . . 4
6. Control Messages . . . . . . . . . . . . . . . . . . . . . . . 4
6.1. DATA_CHANNEL_OPEN Message . . . . . . . . . . . . . . . . . 4
7. Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . 6
7.1. Adding a Channel . . . . . . . . . . . . . . . . . . . . . 6
7.2. Closing a Channel . . . . . . . . . . . . . . . . . . . . . 7
7.3. Sending and Receiving Data . . . . . . . . . . . . . . . . 7
8. Security Considerations . . . . . . . . . . . . . . . . . . . . 7
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 7
10. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . 8
11. References . . . . . . . . . . . . . . . . . . . . . . . . . . 8
11.1. Normative References . . . . . . . . . . . . . . . . . . . 8
11.2. Informational References . . . . . . . . . . . . . . . . . 9
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 9
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1. Introduction
The DataChannel Protocol is designed to provide, in the WebRTC
context [I-D.ietf-rtcweb-overview], a generic transport service
allowing Web Browser to exchange generic data in a bidirectional peer
to peer fashion. As discussed in [I-D.ietf-rtcweb-data-channel] the
protocol uses Stream Control Transmission Protocol (SCTP) [RFC4960]
encapsulated on Datagram Transport Layer Security (DTLS) [RFC6347] as
described in [I-D.tuexen-tsvwg-sctp-dtls-encaps] to benefit from
their already standardized transport and security features.
2. Conventions
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
datatracker.ietf.org