Sockets API Extensions for the Stream Control Transmission Protocol (SCTP)
RFC 6458

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Internet Engineering Task Force (IETF)                        R. Stewart
Request for Comments: 6458                                Adara Networks
Category: Informational                                        M. Tuexen
ISSN: 2070-1721                         Muenster Univ. of Appl. Sciences
                                                                 K. Poon
                                                      Oracle Corporation
                                                                  P. Lei
                                                     Cisco Systems, Inc.
                                                             V. Yasevich
                                                                      HP
                                                           December 2011

                         Sockets API Extensions
          for the Stream Control Transmission Protocol (SCTP)

Abstract

   This document describes a mapping of the Stream Control Transmission
   Protocol (SCTP) into a sockets API.  The benefits of this mapping
   include compatibility for TCP applications, access to new SCTP
   features, and a consolidated error and event notification scheme.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   This document is a product of the Internet Engineering Task Force
   (IETF).  It represents the consensus of the IETF community.  It has
   received public review and has been approved for publication by the
   Internet Engineering Steering Group (IESG).  Not all documents
   approved by the IESG are a candidate for any level of Internet
   Standard; see Section 2 of RFC 5741.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   http://www.rfc-editor.org/info/rfc6458.

Stewart, et al.               Informational                     [Page 1]
RFC 6458                    SCTP Sockets API               December 2011

Copyright Notice

   Copyright (c) 2011 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
   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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Stewart, et al.               Informational                     [Page 2]
RFC 6458                    SCTP Sockets API               December 2011

Table of Contents

   1. Introduction ....................................................6
   2. Data Types ......................................................8
   3. One-to-Many Style Interface .....................................8
      3.1. Basic Operation ............................................8
           3.1.1. socket() ............................................9
           3.1.2. bind() .............................................10
           3.1.3. listen() ...........................................11
           3.1.4. sendmsg() and recvmsg() ............................12
           3.1.5. close() ............................................14
           3.1.6. connect() ..........................................14
      3.2. Non-Blocking Mode .........................................15
      3.3. Special Considerations ....................................16
   4. One-to-One Style Interface .....................................18
      4.1. Basic Operation ...........................................18
           4.1.1. socket() ...........................................19
           4.1.2. bind() .............................................19
           4.1.3. listen() ...........................................21
           4.1.4. accept() ...........................................21
           4.1.5. connect() ..........................................22