The Blocks Extensible Exchange Protocol Core

By Rose, M.

Book Id: WPLBN0000693376
Format Type: PDF eBook:
File Size: 0.1 MB
Reproduction Date: 2005

Title:	The Blocks Extensible Exchange Protocol Core
Author:	Rose, M.
Volume:
Language:	English
Subject:	Sociolinguistics, Management, Finance
Collections:	Technical eBooks and Manuals Collection, Technical eBooks Collection
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Citation APA MLA Chicago Rose, B. M. (n.d.). The Blocks Extensible Exchange Protocol Core. Retrieved from http://self.gutenberg.org/

Description
Technical Reference Publication

Excerpt
Introduction: This memo describes a generic application protocol kernel for connection-oriented, asynchronous interactions called BEEP. At BEEP's core is a framing mechanism that permits simultaneous and independent exchanges of messages between peers. Messages are arbitrary MIME [1] content, but are usually textual (structured using XML [2]). All exchanges occur in the context of a channel -- a binding to a well-defined aspect of the application, such as transport security, user authentication, or data exchange. Each channel has an associated profile that defines the syntax and semantics of the messages exchanged. Implicit in the operation of BEEP is the notion of channel management. In addition to defining BEEP's channel management profile, this document defines...

Table of Contents
Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . 4 2. The BEEP Core . . . . . . . . . . . . . . . . . . . . . . 5 2.1 Roles . . . . . . . . . . . . . . . . . . . . . . . . . . 6 2.1.1 Exchange Styles . . . . . . . . . . . . . . . . . . . . . 6 2.2 Messages and Frames . . . . . . . . . . . . . . . . . . . 7 2.2.1 Frame Syntax . . . . . . . . . . . . . . . . . . . . . . . 8 2.2.1.1 Frame Header . . . . . . . . . . . . . . . . . . . . . . . 9 2.2.1.2 Frame Payload . . . . . . . . . . . . . . . . . . . . . . 12 2.2.1.3 Frame Trailer . . . . . . . . . . . . . . . . . . . . . . 13 2.2.2 Frame Semantics . . . . . . . . . . . . . . . . . . . . . 14 2.2.2.1 Poorly-formed Messages . . . . . . . . . . . . . . . . . . 14 2.3 Channel Management . . . . . . . . . . . . . . . . . . . . 15 2.3.1 Message Semantics . . . . . . . . . . . . . . . . . . . . 16 2.3.1.1 The Greeting Message . . . . . . . . . . . . . . . . . . . 16 2.3.1.2 The Start Message . . . . . . . . . . . . . . . . . . . . 17 2.3.1.3 The Close Message . . . . . . . . . . . . . . . . . . . . 20 2.3.1.4 The OK Message . . . . . . . . . . . . . . . . . . . . . . 23 2.3.1.5 The Error Message . . . . . . . . . . . . . . . . . . . . 23 2.4 Session Establishment and Release . . . . . . . . . . . . 25 2.5 Transport Mappings . . . . . . . . . . . . . . . . . . . . 27 2.5.1 Session Management . . . . . . . . . . . . . . . . . . . . 27 2.5.2 Message Exchange . . . . . . . . . . . . . . . . . . . . . 27 2.6 Asynchrony . . . . . . . . . . . . . . . . . . . . . . . . 28 2.6.1 Within a Single Channel . . . . . . . . . . . . . . . . . 28 2.6.2 Between Different Channels . . . . . . . . . . . . . . . . 28 2.6.3 Pre-emptive Replies . . . . . . . . . . . . . . . . . . . 29 2.6.4 Interference . . . . . . . . . . . . . . . . . . . . . . . 29 2.7 Peer-to-Peer Behavior . . . . . . . . . . . . . . . . . . 30 3. Transport Security . . . . . . . . . . . . . . . . . . . . 31 3.1 The TLS Transport Security Profile . . . . . . . . . . . . 34 3.1.1 Profile Identification and Initialization . . . . . . . . 34 3.1.2 Message Syntax . . . . . . . . . . . . . . . . . . . . . . 35 3.1.3 Message Semantics . . . . . . . . . . . . . . . . . . . . 36 3.1.3.1 The Ready Message . . . . . . . . . . . . . . . . . . . . 36 3.1.3.2 The Proceed Message . . . . . . . . . . . . . . . . . . . 36 4. User Authentication . . . . . . . . . . . . . . . . . . . 37 4.1 The SASL Family of Profiles . . . . . . . . . . . . . . . 38 4.1.1 Profile Identification and Initialization . . . . . . . . 39 4.1.2 Message Syntax . . . . . . . . . . . . . . . . . . . . . . 42 4.1.3 Message Semantics . . . . . . . . . . . . . . . . . . . . 43 5. Registration Templates . . . . . . . . . . . . . . . . . . 44 5.1 Profile Registration Template . . . . . . . . . . . . . . 44 5.2 Feature Registration Template . . . . . . . . . . . . . . 44 6. Initial Registrations . . . . . . . . . . . . . . . . . . 45 6.1 Registration: BEEP Channel Management . . . . . . . . . . 45 6.2 Registration: TLS Transport Security Profile . . . . . . . 45 3