An Abstract Application Layer Interface to Transport Services
draft-ietf-taps-interface-04

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TAPS Working Group                                      B. Trammell, Ed.
Internet-Draft                                                    Google
Intended status: Standards Track                           M. Welzl, Ed.
Expires: January 9, 2020                              University of Oslo
                                                             T. Enghardt
                                                               TU Berlin
                                                            G. Fairhurst
                                                  University of Aberdeen
                                                           M. Kuehlewind
                                                              ETH Zurich
                                                              C. Perkins
                                                   University of Glasgow
                                                               P. Tiesel
                                                               TU Berlin
                                                                 C. Wood
                                                                T. Pauly
                                                              Apple Inc.
                                                           July 08, 2019

     An Abstract Application Layer Interface to Transport Services
                      draft-ietf-taps-interface-04

Abstract

   This document describes an abstract programming interface to the
   transport layer, following the Transport Services Architecture.  It
   supports the asynchronous, atomic transmission of messages over
   transport protocols and network paths dynamically selected at
   runtime.  It is intended to replace the traditional BSD sockets API
   as the lowest common denominator interface to the transport layer, in
   an environment where endpoints have multiple interfaces and potential
   transport protocols to select from.

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."

Trammell, et al.         Expires January 9, 2020                [Page 1]
Internet-Draft               TAPS Interface                    July 2019

   This Internet-Draft will expire on January 9, 2020.

Copyright Notice

   Copyright (c) 2019 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 and restrictions with respect
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   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  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Terminology and Notation  . . . . . . . . . . . . . . . . . .   5
   3.  Interface Design Principles . . . . . . . . . . . . . . . . .   6
   4.  API Summary . . . . . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Usage Examples  . . . . . . . . . . . . . . . . . . . . .   8
       4.1.1.  Server Example  . . . . . . . . . . . . . . . . . . .   8
       4.1.2.  Client Example  . . . . . . . . . . . . . . . . . . .   9
       4.1.3.  Peer Example  . . . . . . . . . . . . . . . . . . . .  10
     4.2.  Transport Properties  . . . . . . . . . . . . . . . . . .  11
       4.2.1.  Transport Property Names  . . . . . . . . . . . . . .  12
       4.2.2.  Transport Property Types  . . . . . . . . . . . . . .  13
     4.3.  Scope of the Interface Definition . . . . . . . . . . . .  13
   5.  Pre-Establishment Phase . . . . . . . . . . . . . . . . . . .  14
     5.1.  Specifying Endpoints  . . . . . . . . . . . . . . . . . .  14
     5.2.  Specifying Transport Properties . . . . . . . . . . . . .  16
       5.2.1.  Reliable Data Transfer (Connection) . . . . . . . . .  18
       5.2.2.  Preservation of Message Boundaries  . . . . . . . . .  18
       5.2.3.  Configure Per-Message Reliability . . . . . . . . . .  18
       5.2.4.  Preservation of Data Ordering . . . . . . . . . . . .  18
       5.2.5.  Use 0-RTT Session Establishment with an Idempotent