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The Lightweight Directory Access Protocol (LDAP) Don't Use Copy Control
RFC 6171

Document type: RFC - Proposed Standard (March 2011)
Was draft-zeilenga-ldap-dontusecopy (individual in app area)
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

IETF State: (None)
Consensus: Unknown
Document shepherd: No shepherd assigned

IESG State: RFC 6171 (Proposed Standard)
Responsible AD: Alexey Melnikov
Send notices to: kurt.zeilenga@isode.com, draft-zeilenga-ldap-dontusecopy@tools.ietf.org

Internet Engineering Task Force (IETF)                       K. Zeilenga
Request for Comments: 6171                                 Isode Limited
Category: Standards Track                                     March 2011
ISSN: 2070-1721

The Lightweight Directory Access Protocol (LDAP) Don't Use Copy Control

Abstract

   This document defines the Lightweight Directory Access Protocol
   (LDAP) Don't Use Copy control extension, which allows a client to
   specify that copied information should not be used in providing
   service.  This control is based upon the X.511 dontUseCopy service
   control option.

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 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/rfc6171.

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.

Zeilenga                     Standards Track                    [Page 1]
RFC 6171               LDAP Don't Use Copy Control            March 2011

   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.

1.  Background and Intended Usage

   This document defines the Lightweight Directory Access Protocol
   (LDAP) [RFC4510] Don't Use Copy control extension.  The control may
   be attached to request messages to indicate that copied (replicated
   or cached) information [X.500] is not be used in providing service.
   This control is based upon the X.511 [X.511] dontUseCopy service
   control option.

   The Don't Use Copy control is intended to be used where the client
   requires the service be provided using original (master) information
   [X.500].  In absence of this control, the server is free to make use
   of copied (i.e., non-authoritative) information in providing the
   requested service.

   For instance, a client might desire to have an authoritative answer
   to a question of whether or not a particular user is a member of a
   group.  To ask this question of a server, the client might issue a
   compare request [RFC4511], with the Don't Use Copy control, where the
   entry parameter is the Distinguished Name (DN) of the group, the
   ava.attributeDesc is 'member', and the ava.assertionValue is the DN
   of the user in question.  If the server has access to the original
   (master) information directly or through chaining, it performs the
   operation against the original (master) information and returns
   compareTrue or compareFalse (or an error).  If the server does not
   have access to the original information, the server is obligated to
   either return a referral or an error.

   It is not intended that this control be used generally (e.g., for all
   LDAP interrogation operations) but only as required to ensure proper
   directory application behavior.  In general, directory applications
   ought to designed to use copied information well.

Zeilenga                     Standards Track                    [Page 2]
RFC 6171               LDAP Don't Use Copy Control            March 2011

2.  Terminology

   DSA stands for Directory System Agent (or server).

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