Data Types in RADIUS
RFC 8044

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Internet Engineering Task Force (IETF)                          A. DeKok
Request for Comments: 8044                                    FreeRADIUS
Updates: 2865, 3162, 4072, 6158, 6572, 7268                 January 2017
Category: Standards Track
ISSN: 2070-1721

                          Data Types in RADIUS

Abstract

   RADIUS specifications have used data types for two decades without
   defining them as managed entities.  During this time, RADIUS
   implementations have named the data types and have used them in
   attribute definitions.  This document updates the specifications to
   better follow established practice.  We do this by naming the data
   types defined in RFC 6158, which have been used since at least the
   publication of RFC 2865.  We provide an IANA registry for the data
   types and update the "RADIUS Attribute Types" registry to include a
   Data Type field for each attribute.  Finally, we recommend that
   authors of RADIUS specifications use these types in preference to
   existing practice.  This document updates RFCs 2865, 3162, 4072,
   6158, 6572, and 7268.

Status of This Memo

   This is an Internet Standards Track document.

   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).  Further information on
   Internet Standards is available in Section 2 of RFC 7841.

   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/rfc8044.

DeKok                        Standards Track                    [Page 1]
RFC 8044                  Data Types in RADIUS              January 2017

Copyright Notice

   Copyright (c) 2017 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
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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.

DeKok                        Standards Track                    [Page 2]
RFC 8044                  Data Types in RADIUS              January 2017

Table of Contents

   1. Introduction ....................................................4
      1.1. Specification Problems with Data Types .....................4
      1.2. Implementation Problems with Data Types ....................5
      1.3. No Mandated Changes ........................................5
      1.4. Requirements Language ......................................5
   2. Use of Data Types ...............................................6
      2.1. Specification Use of Data Types ............................6
           2.1.1. Field Names for Attribute Values ....................6
           2.1.2. Attribute Definitions Using Data Types ..............7
           2.1.3. Format of Attribute Definitions .....................8
           2.1.4. Defining a New Data Type ............................9
      2.2. Implementation Use of Data Types ...........................9
   3. Data Type Definitions ..........................................10
      3.1. integer ...................................................12
      3.2. enum ......................................................12
      3.3. time ......................................................13
      3.4. text ......................................................14
      3.5. string ....................................................15
      3.6. concat ....................................................16
      3.7. ifid ......................................................17
      3.8. ipv4addr ..................................................18
      3.9. ipv6addr ..................................................18
      3.10. ipv6prefix ...............................................19
      3.11. ipv4prefix ...............................................20
      3.12. integer64 ................................................22
      3.13. tlv ......................................................23
      3.14. vsa ......................................................24
      3.15. extended .................................................26
      3.16. long-extended ............................................27
      3.17. evs ......................................................30
   4. Updated Registries .............................................31