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INTERNET-DRAFT                                   Kurt D. Zeilenga
Intended Category: Standard Track                OpenLDAP Foundation
Expires in six months                            5 March 2006



                     The LDAP Don't Use Copy Control
                 <draft-zeilenga-ldap-dontusecopy-02.txt>


Status of this Memo

  This document is intended to be, after appropriate review and
  revision, submitted to the IESG for consideration as a Standard Track
  document.  Distribution of this memo is unlimited.  Technical
  discussion of this document will take place on the IETF LDAP
  Extensions mailing list <ldapext@ietf.org>.  Please send editorial
  comments directly to the author <Kurt@OpenLDAP.org>.

  By submitting this Internet-Draft, each author represents that any
  applicable patent or other IPR claims of which he or she is aware have
  been or will be disclosed, and any of which he or she becomes aware
  will be disclosed, in accordance with Section 6 of BCP 79.

  Internet-Drafts are working documents of the Internet Engineering Task
  Force (IETF), its areas, and its working groups. Note that other
  groups may also distribute working documents as Internet-Drafts.

  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."

  The list of current Internet-Drafts can be accessed at
  http://www.ietf.org/1id-abstracts.html

  The list of Internet-Draft Shadow Directories can be accessed at
  http://www.ietf.org/shadow.html


  Copyright (C) The Internet Society (2006).  All Rights Reserved.

  Please see the Full Copyright section near the end of this document
  for more information.







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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.


1.  Background and Intended Usage

  This document defines the Lightweight Directory Access Protocol (LDAP)
  [Roadmap] Don't Use Copy control extension.  The control may be
  attached to request messages to indicate that copied (replicated or
  cached) information [X.500] should 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].


2. Terminology

  DSA stands for Directory System Agent (or server).
  DSE stands for DSA-specific Entry.

  The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
  "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
  document are to be interpreted as described in BCP 14 [RFC2119].


3.  The Don't Use Copy Control

  The Don't Use Copy control is an LDAP Control [Protocol] whose
  controlType is IANA-ASSIGNED-OID and controlValue is absent.  The
  criticality MUST be TRUE.  There is no corresponding response control.

  The control is appropriate for both LDAP interrogation operations,
  including Compare and Search operations [Protocol].  It is
  inappropriate for all other operations, including Abandon, Bind,
  Delete, Modify, ModifyDN, StartTLS, and Unbind operations [Protocol].

  When the control is attached to an LDAP request, the requested
  operation MUST NOT be performed on copied information.  That is, the
  requested operation MUST be performed on original information.

  If original information for the target or base object of the operation



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  is not available (either locally or through chaining), the server MUST
  either return a referral directing the client to a server believed to
  be better able to service the request or return an appropriate result
  code (e.g., unwillingToPerform).


4.  Security Considerations

  This control is intended to be provided where providing service using
  copied information might lead to unexpected application behavior.
  Designers of directory applications should consider where it is
  appropriate for clients to provide this control.  Designers should
  consider whether use of copied information, in particular security and
  policy information, may result insecure behavior.

  Security considerations for the base operations [Protocol] extended by
  this control, as well as general LDAP security considerations
  [Roadmap], generally apply to implementation and use of this
  extension.


5.  IANA Considerations

5.1.  Object Identifier

  It is requested that IANA assign upon Standards Action an LDAP Object
  Identifier [BCP64bis] to identify the LDAP Don't Use Copy Control
  defined in this document.

      Subject: Request for LDAP Object Identifier Registration
      Person & email address to contact for further information:
          Kurt Zeilenga <kurt@OpenLDAP.org>
      Specification: RFC XXXX
      Author/Change Controller: IESG
      Comments:
          Identifies the LDAP Don't Use Copy Control

5.2  LDAP Protocol Mechanism

  Registration of this protocol mechanism [BCP64bis] is requested.

      Subject: Request for LDAP Protocol Mechanism Registration
      Object Identifier: IANA-ASSIGNED-OID
      Description: Don't Use Copy Control
      Person & email address to contact for further information:
          Kurt Zeilenga <kurt@openldap.org>
      Usage: Control
      Specification: RFC XXXX



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      Author/Change Controller: IESG
      Comments: none



6.  Author's Address

  Kurt D. Zeilenga
  OpenLDAP Foundation

  Email: Kurt@OpenLDAP.org


7. References

  [[Note to the RFC Editor: please replace the citation tags used in
  referencing Internet-Drafts with tags of the form RFCnnnn where
  possible.]]


7.1. Normative References

  [RFC2119]     Bradner, S., "Key words for use in RFCs to Indicate
                Requirement Levels", BCP 14 (also RFC 2119), March 1997.

  [Roadmap]     Zeilenga, K. (editor), "LDAP: Technical Specification
                Road Map", draft-ietf-ldapbis-roadmap-xx.txt, a work in
                progress.

  [Protocol]    Sermersheim, J. (editor), "LDAP: The Protocol",
                draft-ietf-ldapbis-protocol-xx.txt, a work in progress.


7.2. Informative References

  [X.500]       International Telecommunication Union -
                Telecommunication Standardization Sector, "The Directory
                -- Overview of concepts, models and services,"
                X.500(1993) (also ISO/IEC 9594-1:1994).

  [X.511]       International Telecommunication Union -
                Telecommunication Standardization Sector, "The
                Directory: Abstract Service Definition", X.511(1993)
                (also ISO/IEC 9594-3:1993).

  [BCP64bis]    Zeilenga, K., "IANA Considerations for LDAP",
                draft-ietf-ldapbis-bcp64-xx.txt, a work in progress.




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Full Copyright

  Copyright (C) The Internet Society (2006).

  This document is subject to the rights, licenses and restrictions
  contained in BCP 78, and except as set forth therein, the authors
  retain all their rights.

  This document and the information contained herein are provided on an
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  OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
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  INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
  INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
  WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.










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