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RFC 3383

Internet Assigned Numbers Authority (IANA) Considerations for the Lightweight Directory Access Protocol (LDAP)

Pages: 23
Obsoleted by:  4520

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Network Working Group                                        K. Zeilenga
Request for Comments: 3383                           OpenLDAP Foundation
BCP: 64                                                   September 2002
Category: Best Current Practice


       Internet Assigned Numbers Authority (IANA) Considerations
          for the Lightweight Directory Access Protocol (LDAP)

Status of this Memo

   This document specifies an Internet Best Current Practices for the
   Internet Community, and requests discussion and suggestions for
   improvements.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

Abstract

This document provides procedures for registering extensible elements of the Lightweight Directory Access Protocol (LDAP). This document also provides guidelines to the Internet Assigned Numbers Authority (IANA) describing conditions under which new values can be assigned.

1. Introduction

The Lightweight Directory Access Protocol (LDAP) [RFC3377] is an extensible protocol. LDAP supports: - addition of new operations, - extension of existing operations, and - extensible schema. This document details procedures for registering values of used to unambiguously identify extensible elements of the protocol including: - LDAP message types; - LDAP extended operations and controls; - LDAP result codes; - LDAP authentication methods; - LDAP attribute description options; and - Object Identifier descriptors. These registries are maintained by the Internet Assigned Numbers Authority (IANA).
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   In addition, this document provides guidelines to IANA describing the
   conditions under which new values can be assigned.

2. Terminology and Conventions

This section details terms and conventions used in this document.

2.1. Policy Terminology

The terms "IESG Approval", "Standards Action", "IETF Consensus", "Specification Required", "First Come First Served", "Expert Review", and "Private Use" are used as defined in BCP 26 [RFC2434].

2.2. Requirement Terminology

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]. In this case, "the specification" as used by BCP 14 refers to the processing of protocols being submitted to the IETF standards process.

2.3. Common ABNF Productions

A number of syntaxes in this document are described using ABNF [RFC2234]. These syntaxes rely on the following common productions: ALPHA = %x41-5A / %x61-7A ; A-Z / a-z LDIGIT = %x31-39 ; 1-9 DIGIT = %x30 / LDIGIT ; 0-9 HYPHEN = %x2D ; "-" DOT = %x2E ; "." number = DIGIT / ( LDIGIT 1*DIGIT ) keychar = ALPHA / DIGIT / HYPHEN leadkeychar = ALPHA keystring = leadkeychar *keychar A keyword is a case-insensitive string of UTF-8 [RFC2279] encoded characters from the Universal Character Set (UCS) [ISO10646] restricted to the <keystring> production.
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3. IANA Considerations for LDAP

This section details each kind of protocol value which can be registered and provides IANA guidelines on how to assign new values. IANA may reject obviously bogus registration requests.

3.1. Object Identifiers

Numerous LDAP schema and protocol elements are identified by Object Identifiers. Specifications which assign OIDs to elements SHOULD state who delegated the OIDs for its use. For IETF developed elements, specifications SHOULD use OIDs under "Internet Directory Numbers" (1.3.6.1.1.x). Numbers under this OID arc will be assigned upon Expert Review with Specification Required. Only one OID per specification will be assigned. The specification MAY then assign any number of OIDs within this arc without further coordination with IANA. For elements developed by others, any properly delegated OID can be used, including those under "Internet Private Enterprise Numbers" (1.3.6.1.4.1.x) assigned by IANA <http://www.iana.org/cgi-bin/enterprise.pl>. To avoid interoperability problems between early implementations of "works in progress" and implementations of the published specification (e.g., the RFC), experimental OIDs SHOULD be used in "works in progress" and early implementations. OIDs under the Internet Experimental OID arc (1.3.6.1.3.x) may be used for this purpose. Experimental OIDs are not to used in published specifications (e.g., RFCs). Practices for IANA assignment of Internet Enterprise and Experimental OIDs are detailed in STD 16 [RFC1155].

3.2 Protocol Mechanisms

LDAP provides a number of Root DSE attributes for discovery of protocol mechanisms identified by OIDs, including: - supportedControl [RFC2252] and - supportedExtension [RFC2252].
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   A registry of OIDs used for discover of protocol mechanisms is
   provided to allow implementors and others to locate the technical
   specification for these protocol mechanisms.  Future specifications
   of additional Root DSE attributes holding values identifying protocol
   mechanisms MAY extend this registry for their values.

   OIDs associated with discoverable protocol mechanisms SHOULD be
   registered.  These are be considered on a First Come First Served
   with Specification Required basis.

   OIDs associated with Standard Track mechanisms MUST be registered and
   require Standards Action.

3.3. Object Identifier Descriptors

LDAP allows short descriptive names (or descriptors) to be used instead of a numeric Object Identifier to identify protocol extensions [RFC2251], schema elements [RFC2252], LDAP URL [RFC2255] extensions, and other objects. Descriptors are restricted to strings of UTF-8 encoded UCS characters restricted by the following ABNF: name = keystring Descriptors are case-insensitive. Multiple names may be assigned to a given OID. For purposes of registration, an OID is to be represented in numeric OID form conforming to the ABNF: numericoid = number *( DOT number ) ; e.g., 1.1.0.23.40 While the protocol places no maximum length restriction upon descriptors, they should be short. Descriptors longer than 48 characters may be viewed as too long to register. A values ending with a hyphen ("-") reserve all descriptors which start with the value. For example, the registration of the option "descrFamily-" reserves all options which start with "descrFamily-" for some related purpose. Descriptors beginning with "x-" are for Private Use and cannot be registered. Descriptors beginning with "e-" are reserved for experiments and will be registered on a First Come First Served basis. All other descriptors require Expert Review to be registered.
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   The registrant need not "own" the OID being named.

   The OID namespace is managed by The ISO/IEC Joint Technical Committee
   1 - Subcommittee 6.

3.4. AttributeDescription Options

An AttributeDescription [RFC2251, Section 4.1.5] can contain zero or more options specifying additional semantics. An option SHALL be restricted to a string UTF-8 encoded UCS characters limited by the following ABNF: option = keystring Options are case-insensitive. While the protocol places no maximum length restriction upon option strings, they should be short. Options longer than 24 characters may be viewed as too long to register. Values ending with a hyphen ("-") reserve all option names which start with the name. For example, the registration of the option "optionFamily-" reserves all options which start with "optionFamily-" for some related purpose. Options beginning with "x-" are for Private Use and cannot be registered. Options beginning with "e-" are reserved for experiments and will be registered on a First Come First Served basis. All other options require Standards Action or Expert Review with Specification Required to be registered.

3.5. LDAP Message Types

Each protocol message is encapsulated in an LDAPMessage envelope [RFC2251, Section 4.1.1]. The protocolOp CHOICE indicates the type of message encapsulated. Each message type consists of a keyword and a non-negative choice number is combined with the class (APPLICATION) and data type (CONSTRUCTED or PRIMITIVE) to construct the BER tag in the message's encoding. The choice numbers for existing protocol messages are implicit in the protocol's ASN.1 defined in [RFC2251]. New values will be registered upon Standards Action. Note: LDAP provides extensible messages which reduces, but does not eliminate, the need to add new message types.
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3.6. LDAP Result Codes

LDAP result messages carry an resultCode enumerated value to indicate the outcome of the operation [RFC2251, Section 4.1.10]. Each result code consists of a keyword and a non-negative integer. New resultCodes integers in the range 0-1023 require Standards Action to be registered. New resultCode integers in the range 1024-4095 require Expert Review with Specification Required. New resultCode integers in the range 4096-16383 will be registered on a First Come First Served basis. Keywords associated with integers in the range 0-4095 SHALL NOT start with "e-" or "x-". Keywords associated with integers in the range 4096-16383 SHALL start with "e-". Values greater than or equal to 16384 and keywords starting with "x-" are for Private Use and cannot be registered.

3.7. LDAP Authentication Method

The LDAP Bind operation supports multiple authentication methods [RFC2251, Section 4.2]. Each authentication choice consists of a keyword and a non-negative integer. The registrant SHALL classify the authentication method usage using one of the following terms: COMMON - method is appropriate for common use on the Internet, LIMITED USE - method is appropriate for limited use, OBSOLETE - method has been deprecated or otherwise found to be inappropriate for any use. Methods without publicly available specifications SHALL NOT be classified as COMMON. New registrations of class OBSOLETE cannot be registered. New authentication method integers in the range 0-1023 require Standards Action to be registered. New authentication method integers in the range 1024-4095 require Expert Review with Specification Required. New authentication method integers in the range 4096-16383 will be registered on a First Come First Served basis. Keywords associated with integers in the range 0-4095 SHALL NOT start with "e-" or "x-". Keywords associated with integers in the range 4096-16383 SHALL start with "e-". Values greater than or equal to 16384 and keywords starting with "x-" are for Private Use and cannot be registered. Note: LDAP supports SASL [RFC2222] as an Authentication CHOICE. SASL is an extensible LDAP authentication method.
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3.8. Directory Systems Names

The IANA-maintained "Directory Systems Names" registry [IANADSN] of valid keywords for well known attributes used in the LDAPv2 string representation of a distinguished name [RFC1779]. RFC 1779 was obsoleted by RFC 2253. Directory systems names are not known to be used in any other context. LDAPv3 uses Object Identifier Descriptors [Section 3.2] (which have a different syntax than directory system names). New Directory System Names will no longer be accepted. For historical purposes, the current list of registered names should remain publicly available.

4. Registration Procedure

The procedure given here MUST be used by anyone who wishes to use a new value of a type described in Section 3 of this document. The first step is for the requester to fill out the appropriate form. Templates are provided in Appendix A. If the policy is Standards Action, the completed form SHOULD be provided to the IESG with the request for Standards Action. Upon approval of the Standards Action, the IESG SHALL forward the request (possibly revised) to IANA. The IESG SHALL be viewed as the owner of all values requiring Standards Action. If the policy is Expert Review, the requester SHALL post the completed form to the <directory@apps.ietf.org> mailing list for public review. The review period is two (2) weeks. If a revised form is later submitted, the review period is restarted. Anyone may subscribe to this list by sending a request to <directory-request@apps.ietf.org>. During the review, objections may be raised by anyone (including the Expert) on the list. After completion of the review, the Expert, based upon public comments, SHALL either approve the request and forward it to the IESG OR deny the request. In either case, the Expert SHALL promptly notify the requester of the action. Actions of the Expert may be appealed [RFC2026]. The Expert is appointed by Applications Area Director(s). The requester is viewed as the owner of values registered under Expert Review. If the policy is First Come First Served, the requester SHALL submit the completed form directly to the IANA: <iana@iana.org>. The requester is viewed as the owner of values registered under First Come First Served.
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   Neither the Expert nor IANA will take position on the claims of
   copyright or trademarks issues regarding completed forms.

   Prior to submission of the Internet Draft (I-D) to the RFC Editor but
   after IESG review and tentative approval, the document editor SHOULD
   revise the I-D to use registered values.

5. Registration Maintenance

This section discusses maintenance of registrations.

5.1. Lists of Registered Values

IANA makes lists of registered values readily available to the Internet community on their web site: <http://www.iana.org/>.

5.2. Change Control

The registration owner MAY update the registration subject to the same constraints and review as with new registrations. In cases where the owner is not unable or unwilling to make necessary updates, the IESG MAY assert ownership in order to update the registration.

5.3. Comments

For cases where others (anyone other than the owner) have significant objections to the claims in a registration and the owner does not agree to change the registration, comments MAY be attached to a registration upon Expert Review. For registrations owned by the IESG, the objections SHOULD be addressed by initiating a request for Expert Review. The form of these requests is ad hoc, but MUST include the specific objections to be reviewed and SHOULD contain (directly or by reference) materials supporting the objections.

6. Security Considerations

The security considerations detailed in [RFC2434] are generally applicable to this document. Additional security considerations specific to each namespace are discussed in Section 3 where appropriate. Security considerations for LDAP are discussed in documents comprising the technical specification [RFC3377].
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7. Acknowledgment

This document is a product of the IETF LDAP Revision (LDAPbis) Working Group. Some text was borrowed from "Guidelines for Writing an IANA Considerations Section in RFCs" [RFC2434] by Thomas Narten and Harald Alvestrand.

8. Normative References

[RFC1155] Rose, M. and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", STD 16, RFC 1155, May 1990. [RFC2026] Bradner, S., "The Internet Standards Process -- Revision 3", BCP 9, RFC 2026, October 1996. [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC2234] Crocker, D. and P. Overell, "Augmented BNF for Syntax Specifications: ABNF", RFC 2234, November 1997. [RFC2251] Wahl, M., Howes, T. and S. Kille, "Lightweight Directory Access Protocol (v3)", RFC 2251, December 1997. [RFC2252] Wahl, M., Coulbeck, A., Howes, T. and S. Kille, "Lightweight Directory Access Protocol (v3): Attribute Syntax Definitions", RFC 2252, December 1997. [RFC2255] Howes, T. and M. Smith, "The LDAP URL Format", RFC 2255, December, 1997. [RFC2256] Wahl, M., "A Summary of the X.500(96) User Schema for use with LDAPv3", RFC 2256, December 1997. [RFC2279] Yergeau, F., "UTF-8, a transformation format of ISO 10646", RFC 2279, January 1998. [RFC2434] Narten, T. and H. Alvestrand, "Guidelines for Writing an IANA Considerations Section in RFCs", BCP 26, RFC 2434, October 1998. [RFC3377] Hodges, J. and R. Morgan, "Lightweight Directory Access Protocol (v3): Technical Specification", RFC 3377, September 2002. [IANADSN] IANA, "Directory Systems Names", http://www.iana.org/assignments/directory-system-names
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   [ISO10646] Universal Multiple-Octet Coded Character Set (UCS) -
              Architecture and Basic Multilingual Plane, ISO/IEC
              10646-1: 1993.

10. Informative References

[RFC1779] Kille, S., "A String Representation of Distinguished Names", RFC 1779, March 1995. [RFC2222] Myers, J., "Simple Authentication and Security Layer (SASL)", RFC 2222, October 1997.
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Appendix A. Registration Templates

This appendix provides registration templates for registering new LDAP values.

A.1. LDAP Object Identifier Registration Template

Subject: Request for LDAP OID Registration Person & email address to contact for further information: Specification: (I-D) Author/Change Controller: Comments: (Any comments that the requester deems relevant to the request)

A.2. LDAP Protocol Mechanism Registration Template

Subject: Request for LDAP Protocol Mechanism Registration Object Identifier: Description: Person & email address to contact for further information: Usage: (One of Control or Extension) Specification: (I-D) Author/Change Controller: Comments: (Any comments that the requester deems relevant to the request)
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A.3. LDAP Descriptor Registration Template

Subject: Request for LDAP Descriptor Registration Descriptor (short name): Object Identifier: Person & email address to contact for further information: Usage: (One of attribute type, URL extension, object class, or other) Specification: (RFC, I-D, URI) Author/Change Controller: Comments: (Any comments that the requester deems relevant to the request)

A.4. LDAP Attribute Description Option Registration Template

Subject: Request for LDAP Attribute Description Option Registration Option Name: Family of Options: (YES or NO) Person & email address to contact for further information: Specification: (RFC, I-D, URI) Author/Change Controller: Comments: (Any comments that the requester deems relevant to the request)
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A.5. LDAP Message Type Registration Template

Subject: Request for LDAP Message Type Registration LDAP Message Name: Person & email address to contact for further information: Specification: (Approved I-D) Comments: (Any comments that the requester deems relevant to the request)

A.6. LDAP Result Code Registration Template

Subject: Request for LDAP Result Code Registration Result Code Name: Person & email address to contact for further information: Specification: (RFC, I-D, URI) Author/Change Controller: Comments: (Any comments that the requester deems relevant to the request)

A.7. LDAP Authentication Method Registration Template

Subject: Request for LDAP Authentication Method Registration Authentication Method Name: Person & email address to contact for further information: Specification: (RFC, I-D, URI) Intended Usage: (One of COMMON, LIMITED-USE, OBSOLETE) Author/Change Controller: Comments: (Any comments that the requester deems relevant to the request)
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Appendix B. Assigned Values

The following values are currently assigned.

B.1. Object Identifiers

Currently registered "Internet Private Enterprise Numbers" can be found at <http://www.iana.org/assignments/enterprise-numbers>. Currently registered "Internet Directory Numbers" can be found at <http://www.iana.org/assignments/smi-numbers>.

B.2. Protocol Mechanisms

Object Identifier Type Description Reference -------------------------- ---- -------------- --------- 1.2.840.113556.1.4.473 C Sort Request [RFC2891] 1.2.840.113556.1.4.474 C Sort Response [RFC2891] 1.3.6.1.4.1.1466.101.119.1 E Dynamic Refresh [RFC2589] 1.3.6.1.4.1.1466.20037 E Start TLS [RFC2830] 1.3.6.1.4.1.4203.1.11.1 E Modify Password [RFC3062] 2.16.840.1.113730.3.4.2 C ManageDsaIT [RFC3296] Legend ------------------------ C => supportedControl E => supportedExtension

B.3. Object Identifier Descriptors

NAME Type OID [REF] ------------------------ ---- ----------------- account O 0.9.2342.19200300.100.4.5 [RFC1274] alias O 2.5.6.1 [RFC2256] aliasedEntryName A 2.5.4.1 [X.501] aliasedObjectName A 2.5.4.1 [RFC2256] altServer A 1.3.6.1.4.1.1466.101.120.6 [RFC2252] applicationEntity O 2.5.6.12 [RFC2256] applicationProcess O 2.5.6.11 [RFC2256] aRecord A 0.9.2342.19200300.100.1.26 [RFC1274] associatedDomain A 0.9.2342.19200300.100.1.37 [RFC1274] associatedInternetGateway A 1.3.6.1.4.1.453.7.2.8 [RFC2164] associatedName A 0.9.2342.19200300.100.1.38 [RFC1274] associatedORAddress A 1.3.6.1.4.1.453.7.2.6 [RFC2164] associatedX400Gateway A 1.3.6.1.4.1.453.7.2.3 [RFC2164] attributeTypes A 2.5.21.5 [RFC2252] audio A 0.9.2342.19200300.100.1.55 [RFC1274] authorityRevocationList A 2.5.4.38 [RFC2256]
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bitStringMatch                  M 2.5.13.16 [RFC2252]
buildingName                    A 0.9.2342.19200300.100.1.48 [RFC1274]
businessCategory                A 2.5.4.15 [RFC2256]
C                               A 2.5.4.6 [RFC2256]
cACertificate                   A 2.5.4.37 [RFC2256]
calCalAdrURI                    A 1.2.840.113556.1.4.481 [RFC2739]
calCalURI                       A 1.2.840.113556.1.4.478 [RFC2739]
calCAPURI                       A 1.2.840.113556.1.4.480 [RFC2739]
calEntry                        O 1.2.840.113556.1.5.87 [RFC2739]
calFBURL                        A 1.2.840.113556.1.4.479 [RFC2739]
calOtherCalAdrURIs              A 1.2.840.113556.1.4.485 [RFC2739]
calOtherCalURIs                 A 1.2.840.113556.1.4.482 [RFC2739]
calOtherCAPURIs                 A 1.2.840.113556.1.4.484 [RFC2739]
calOtherFBURLs                  A 1.2.840.113556.1.4.483 [RFC2739]
caseExactIA5Match               M 1.3.6.1.4.1.1466.109.114.1 [RFC2252]
caseIgnoreIA5Match              M 1.3.6.1.4.1.1466.109.114.2 [RFC2252]
caseIgnoreListMatch             M 2.5.13.11 [RFC2252]
caseIgnoreMatch                 M 2.5.13.2 [RFC2252]
caseIgnoreOrderingMatch         M 2.5.13.3 [RFC2252]
caseIgnoreSubstringsMatch       M 2.5.13.4 [RFC2252]
certificateRevocationList       A 2.5.4.39 [RFC2256]
certificationAuthority          O 2.5.6.16 [RFC2256]
certificationAuthority-V2       O 2.5.6.16.2 [RFC2256]
CN                              A 2.5.4.3 [RFC2256]
cNAMERecord                     A 0.9.2342.19200300.100.1.31 [RFC1274]
co                              A 0.9.2342.19200300.100.1.43 [RFC1274]
commonName                      A 2.5.4.3 [RFC2256]
country                         O 2.5.6.2 [RFC2256]
countryName                     A 2.5.4.6 [RFC2256]
createTimestamp                 A 2.5.18.1 [RFC2252]
creatorsName                    A 2.5.18.3 [RFC2252]
cRLDistributionPoint            O 2.5.6.19 [RFC2256]
crossCertificatePair            A 2.5.4.40 [RFC2256]
DC                              A 0.9.2342.19200300.100.1.25 [RFC2247]
dcObject                        O 1.3.6.1.4.1.1466.344 [RFC2247]
deltaCRL                        O 2.5.6.23 [RFC2587]
deltaRevocationList             A 2.5.4.53 [RFC2256]
description                     A 2.5.4.13 [RFC2256]
destinationIndicator            A 2.5.4.27 [RFC2256]
device                          O 2.5.6.14 [RFC2256]
distinguishedName               A 2.5.4.49 [RFC2256]
distinguishedNameMatch          M 2.5.13.1 [RFC2252]
distinguishedNameTableEntry     O 1.3.6.1.4.1.453.7.1.5 [RFC2293]
distinguishedNameTableKey       A 1.3.6.1.4.1.453.7.2.3 [RFC2293]
dITContentRules                 A 2.5.21.2 [RFC2252]
dITRedirect                     A 0.9.2342.19200300.100.1.54 [RFC1274]
dITStructureRules               A 2.5.21.1 [RFC2252]
dmd                             O 2.5.6.20 [RFC2256]
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dmdName                         A 2.5.4.54 [RFC2256]
dnQualifier                     A 2.5.4.46 [RFC2256]
dNSDomain                       O 0.9.2342.19200300.100.4.15 [RFC1274]
document                        O 0.9.2342.19200300.100.4.6 [RFC1274]
documentAuthor                  A 0.9.2342.19200300.100.1.14 [RFC1274]
documentIdentifier              A 0.9.2342.19200300.100.1.11 [RFC1274]
documentLocation                A 0.9.2342.19200300.100.1.15 [RFC1274]
documentPublisher               A 0.9.2342.19200300.100.1.56 [RFC1274]
documentSeries                  O 0.9.2342.19200300.100.4.8 [RFC1274]
documentTitle                   A 0.9.2342.19200300.100.1.12 [RFC1274]
documentVersion                 A 0.9.2342.19200300.100.1.13 [RFC1274]
domain                          O 0.9.2342.19200300.100.4.13 [RFC2247]
domainComponent                 A 0.9.2342.19200300.100.1.25 [RFC2247]
domainNameForm                  N 1.3.6.1.4.1.1466.345 [RFC2247]
domainRelatedObject             O 0.9.2342.19200300.100.4.17 [RFC1274]
drink                           A 0.9.2342.19200300.100.1.5 [RFC1274]
dSA                             O 2.5.6.13 [RFC2256]
dSAQuality                      A 0.9.2342.19200300.100.1.49 [RFC1274]
dynamicObject                   O 1.3.6.1.4.1.1466.101.119.2 [RFC2589]
dynamicSubtrees                 A 1.3.6.1.4.1.1466.101.119.4 [RFC2589]
enhancedSearchGuide             A 2.5.4.47 [RFC2256]
entryTtl                        A 1.3.6.1.4.1.1466.101.119.3 [RFC2589]
extensibleObject                O 1.3.6.1.4.1.1466.101.120.111 [RFC2252]
facsimileTelephoneNumber        A 2.5.4.23 [RFC2256]
favouriteDrink                  A 0.9.2342.19200300.100.1.5 [RFC1274]
friendlyCountry                 O 0.9.2342.19200300.100.4.18 [RFC1274]
friendlyCountryName             A 0.9.2342.19200300.100.1.43 [RFC1274]
generalizedTimeMatch            M 2.5.13.27 [RFC2252]
generalizedTimeOrderingMatch    M 2.5.13.28 [RFC2252]
generationQualifier             A 2.5.4.44 [RFC2256]
givenName                       A 2.5.4.42 [RFC2256]
GN                              A 2.5.4.42 [RFC2256]
groupOfNames                    O 2.5.6.9 [RFC2256]
groupOfUniqueNames              O 2.5.6.17 [RFC2256]
homePhone                       A 0.9.2342.19200300.100.1.20 [RFC1274]
homePostalAddress               A 0.9.2342.19200300.100.1.39 [RFC1274]
homeTelephone                   A 0.9.2342.19200300.100.1.20 [RFC1274]
host                            A 0.9.2342.19200300.100.1.9 [RFC1274]
houseIdentifier                 A 2.5.4.51 [RFC2256]
info                            A 0.9.2342.19200300.100.1.4 [RFC1274]
initials                        A 2.5.4.43 [RFC2256]
integerFirstComponentMatch      M 2.5.13.29 [RFC2252]
integerMatch                    M 2.5.13.14 [RFC2252]
internationaliSDNNumber         A 2.5.4.25 [RFC2256]
janetMailbox                    A 0.9.2342.19200300.100.1.46 [RFC1274]
jpegPhoto                       A 0.9.2342.19200300.100.1.60 [RFC1488]
knowledgeInformation            A 2.5.4.2 [RFC2256]
L                               A 2.5.4.7 [RFC2256]
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labeledURI                      A 1.3.6.1.4.1.250.1.57 [RFC2079]
labeledURIObject                A 1.3.6.1.4.1.250.3.15 [RFC2079]
lastModifiedBy                  A 0.9.2342.19200300.100.1.24 [RFC1274]
lastModifiedTime                A 0.9.2342.19200300.100.1.23 [RFC1274]
ldapSyntaxes                    A 1.3.6.1.4.1.1466.101.120.16 [RFC2252]
locality                        O 2.5.6.3 [RFC2256]
localityName                    A 2.5.4.7 [RFC2256]
mail                            A 0.9.2342.19200300.100.1.3 [RFC2798]
mailPreferenceOption            A 0.9.2342.19200300.100.1.47 [RFC1274]
manager                         A 0.9.2342.19200300.100.1.10 [RFC1274]
matchingRules                   A 2.5.21.4 [RFC2252]
matchingRuleUse                 A 2.5.21.8 [RFC2252]
mcgamTables                     A 1.3.6.1.4.1.453.7.2.9 [RFC2164]
mDRecord                        A 0.9.2342.19200300.100.1.27 [RFC1274]
member                          A 2.5.4.31 [RFC2256]
mixerGateway                    O 1.3.6.1.4.1.453.7.1.4 [RFC2164]
mobile                          A 0.9.2342.19200300.100.1.41 [RFC1274]
mobileTelephoneNumber           A 0.9.2342.19200300.100.1.41 [RFC1274]
modifiersName                   A 2.5.18.4 [RFC2252]
modifyTimestamp                 A 2.5.18.2 [RFC2252]
mXRecord                        A 0.9.2342.19200300.100.1.28 [RFC1274]
name                            A 2.5.4.41 [RFC2256]
nameForms                       A 2.5.21.7 [RFC2252]
namingContexts                  A 1.3.6.1.4.1.1466.101.120.5 [RFC2252]
nSRecord                        A 0.9.2342.19200300.100.1.29 [RFC1274]
numericStringMatch              M 2.5.13.8 [RFC2252]
numericStringSubstringsMatch    M 2.5.13.10 [RFC2252]
O                               A 2.5.4.10 [RFC2256]
objectClass                     A 2.5.4.0 [RFC2256]
objectClasses                   A 2.5.21.6 [RFC2252]
objectIdentifierFirstComponentMatch M 2.5.13.30 [RFC2252]
objectIdentifiersMatch          M 2.5.13.0 [RFC2252]
octetStringMatch                M 2.5.13.17 [RFC2252]
omittedORAddressComponent       O 1.3.6.1.4.1.453.7.1.3 [RFC2164]
oRAddressComponentType          A 1.3.6.1.4.1.453.7.2.7 [RFC2164]
organization                    O 2.5.6.4 [RFC2256]
organizationalPerson            O 2.5.6.7 [RFC2256]
organizationalRole              O 2.5.6.8 [RFC2256]
organizationalStatus            A 0.9.2342.19200300.100.1.45 [RFC1274]
organizationalUnit              O 2.5.6.5 [RFC2256]
organizationalUnitName          A 2.5.4.11 [RFC2256]
organizationName                A 2.5.4.10 [RFC2256]
otherMailbox                    A 0.9.2342.19200300.100.1.22 [RFC1274]
OU                              A 2.5.4.11 [RFC2256]
owner                           A 2.5.4.32 [RFC2256]
pager                           A 0.9.2342.19200300.100.1.42 [RFC1274]
pagerTelephoneNumber            A 0.9.2342.19200300.100.1.42 [RFC1274]
person                          O 2.5.6.6 [RFC2256]
ToP   noToC   RFC3383 - Page 18
personalSignature               A 0.9.2342.19200300.100.1.53 [RFC1274]
personalTitle                   A 0.9.2342.19200300.100.1.40 [RFC1274]
photo                           A 0.9.2342.19200300.100.1.7 [RFC1274]
physicalDeliveryOfficeName      A 2.5.4.19 [RFC2256]
pilotDSA                        O 0.9.2342.19200300.100.4.21 [RFC1274]
pilotObject                     O 0.9.2342.19200300.100.4.3 [RFC1274]
pilotOrganization               O 0.9.2342.19200300.100.4.20 [RFC1274]
pilotPerson                     O 0.9.2342.19200300.100.4.4 [RFC1274]
pkiCA                           O 2.5.6.22 [RFC2587]
pkiUser                         O 2.5.6.21 [RFC2587]
postalAddress                   A 2.5.4.16 [RFC2256]
postalCode                      A 2.5.4.17 [RFC2256]
postOfficeBox                   A 2.5.4.18 [RFC2256]
preferredDeliveryMethod         A 2.5.4.28 [RFC2256]
presentationAddress             A 2.5.4.29 [RFC2256]
presentationAddressMatch        M 2.5.13.22 [RFC2252]
protocolInformation             A 2.5.4.48 [RFC2256]
protocolInformationMatch        M 2.5.13.24 [RFC2252]
qualityLabelledData             O 0.9.2342.19200300.100.4.22 [RFC1274]
ref                             A 2.16.840.1.113730.3.1.34 [RFC3296]
referral                        0 2.16.840.1.113730.3.2.6 [RFC3296]
registeredAddress               A 2.5.4.26 [RFC2256]
residentialPerson               O 2.5.6.10 [RFC2256]
RFC822LocalPart                 O 0.9.2342.19200300.100.4.14 [RFC1274]
RFC822Mailbox                   A 0.9.2342.19200300.100.1.3 [RFC1274]
rFC822ToX400Mapping             O 1.3.6.1.4.1.453.7.1.1 [RFC2164]
roleOccupant                    A 2.5.4.33 [RFC2256]
room                            O 0.9.2342.19200300.100.4.7 [RFC1274]
roomNumber                      A 0.9.2342.19200300.100.1.6 [RFC1274]
searchGuide                     A 2.5.4.14 [RFC2256]
secretary                       A 0.9.2342.19200300.100.1.21 [RFC1274]
seeAlso                         A 2.5.4.34 [RFC2256]
serialNumber                    A 2.5.4.5 [RFC2256]
simpleSecurityObject            O 0.9.2342.19200300.100.4.19 [RFC1274]
singleLevelQuality              A 0.9.2342.19200300.100.1.50 [RFC1274]
SN                              A 2.5.4.4 [RFC2256]
sOARecord                       A 0.9.2342.19200300.100.1.30 [RFC1274]
ST                              A 2.5.4.8 [RFC2256]
stateOrProvinceName             A 2.5.4.8 [RFC2256]
street                          A 2.5.4.9 [RFC2256]
streetAddress                   A 2.5.4.9 [RFC2256]
strongAuthenticationUser        O 2.5.6.15 [RFC2256]
subschema                       O 2.5.20.1 [RFC2252]
subschemaSubentry               A 2.5.18.10 [RFC2252]
subtree                         O 1.3.6.1.4.1.453.7.1.1 [RFC2293]
subtreeMaximumQuality           A 0.9.2342.19200300.100.1.52 [RFC1274]
subtreeMinimumQuality           A 0.9.2342.19200300.100.1.51 [RFC1274]
supportedAlgorithms             A 2.5.4.52 [RFC2256]
ToP   noToC   RFC3383 - Page 19
supportedApplicationContext     A 2.5.4.30 [RFC2256]
supportedControl                A 1.3.6.1.4.1.1466.101.120.13 [RFC2252]
supportedExtension              A 1.3.6.1.4.1.1466.101.120.7 [RFC2252]
supportedLDAPVersion            A 1.3.6.1.4.1.1466.101.120.15 [RFC2252]
supportedSASLMechanisms         A 1.3.6.1.4.1.1466.101.120.14 [RFC2252]
surname                         A 2.5.4.4 [RFC2256]
table                           O 1.3.6.1.4.1.453.7.1.2 [RFC2293]
tableEntry                      O 1.3.6.1.4.1.453.7.1.3 [RFC2293]
telephoneNumber                 A 2.5.4.20 [RFC2256]
telephoneNumberMatch            M 2.5.13.20 [RFC2252]
telephoneNumberSubstringsMatch  M 2.5.13.21 [RFC2252]
teletexTerminalIdentifier       A 2.5.4.22 [RFC2256]
telexNumber                     A 2.5.4.21 [RFC2256]
textEncodedORAddress            A 0.9.2342.19200300.100.1.2 [RFC1274]
textTableEntry                  O 1.3.6.1.4.1.453.7.1.4 [RFC2293]
textTableKey                    A 1.3.6.1.4.1.453.7.2.1 [RFC2293]
textTableValue                  A 1.3.6.1.4.1.453.7.2.2 [RFC2293]
title                           A 2.5.4.12 [RFC2256]
top                             O 2.5.6.0 [RFC2256]
uid                             A 0.9.2342.19200300.100.1.1 [RFC2253]
uniqueIdentifier                A 0.9.2342.19200300.100.1.44 [RFC1274]
uniqueMember                    A 2.5.4.50 [RFC2256]
uniqueMemberMatch               M 2.5.13.23 [RFC2252]
userCertificate                 A 2.5.4.36 [RFC2256]
userClass                       A 0.9.2342.19200300.100.1.8 [RFC1274]
userId                          A 0.9.2342.19200300.100.1.1 [RFC1274]
userPassword                    A 2.5.4.35 [RFC2256]
userSecurityInformation         O 2.5.6.18 [RFC2256]
x121Address                     A 2.5.4.24 [RFC2256]
x400ToRFC822Mapping             O 1.3.6.1.4.1.453.7.1.2 [RFC2164]
x500UniqueIdentifier            A 2.5.4.45 [RFC2256]

Legend
------------------------
A => Attribute Type
C => DIT Content Rule
E => LDAP URL Extension
M => Matching Rule
N => Name Form
O => Object Class
ToP   noToC   RFC3383 - Page 20

B.4. Attribute Description Options

Option Owner Reference ---------------- ----- --------- binary IESG [RFC2251] lang-* IESG [RFC2596] * family of options

B.5. LDAPMessage types

Name Code Owner Reference --------------------------- ---- ----- --------- bindRequest 0 IESG [RFC2251] bindResponse 1 IESG [RFC2251] unbindRequest 2 IESG [RFC2251] searchRequest 3 IESG [RFC2251] searchResEntry 4 IESG [RFC2251] searchResDone 5 IESG [RFC2251] modifyRequest 6 IESG [RFC2251] modifyResponse 7 IESG [RFC2251] addRequest 8 IESG [RFC2251] addResponse 9 IESG [RFC2251] delRequest 10 IESG [RFC2251] delResponse 11 IESG [RFC2251] modDNRequest 12 IESG [RFC2251] modDNResponse 13 IESG [RFC2251] compareRequest 14 IESG [RFC2251] compareResponse 15 IESG [RFC2251] abandonRequest 16 IESG [RFC2251] reserved 17-18 IESG searchResRef 19 IESG [RFC2251] reserved 20-22 IESG extendedReq 23 IESG [RFC2251] extendedResp 24 IESG [RFC2251]

B.6. resultCode values

Name Code Owner Reference --------------------------- ---- ----- --------- success 0 IESG [RFC2251] operationsError 1 IESG [RFC2251] protocolError 2 IESG [RFC2251] timeLimitExceeded 3 IESG [RFC2251] sizeLimitExceeded 4 IESG [RFC2251] compareFalse 5 IESG [RFC2251] compareTrue 6 IESG [RFC2251] authMethodNotSupported 7 IESG [RFC2251]
ToP   noToC   RFC3383 - Page 21
strongAuthRequired              8  IESG  [RFC2251]
reserved (partialResults)       9  IESG  [RFC2251]
referral                       10  IESG  [RFC2251]
adminLimitExceeded             11  IESG  [RFC2251]
unavailableCriticalExtension   12  IESG  [RFC2251]
confidentialityRequired        13  IESG  [RFC2251]
saslBindInProgress             14  IESG  [RFC2251]
noSuchAttribute                16  IESG  [RFC2251]
undefinedAttributeType         17  IESG  [RFC2251]
inappropriateMatching          18  IESG  [RFC2251]
constraintViolation            19  IESG  [RFC2251]
attributeOrValueExists         20  IESG  [RFC2251]
invalidAttributeSyntax         21  IESG  [RFC2251]
noSuchObject                   32  IESG  [RFC2251]
aliasProblem                   33  IESG  [RFC2251]
invalidDNSyntax                34  IESG  [RFC2251]
reserved (isLeaf)              35  IESG  [RFC2251]
aliasDereferencingProblem      36  IESG  [RFC2251]
reserved                    37-47  IESG
inappropriateAuthentication    48  IESG  [RFC2251]
invalidCredentials             49  IESG  [RFC2251]
insufficientAccessRights       50  IESG  [RFC2251]
busy                           51  IESG  [RFC2251]
unavailable                    52  IESG  [RFC2251]
unwillingToPerform             53  IESG  [RFC2251]
loopDetect                     54  IESG  [RFC2251]
reserved                    55-63  IESG
namingViolation                64  IESG  [RFC2251]
objectClassViolation           65  IESG  [RFC2251]
notAllowedOnNonLeaf            66  IESG  [RFC2251]
notAllowedOnRDN                67  IESG  [RFC2251]
entryAlreadyExists             68  IESG  [RFC2251]
objectClassModsProhibited      69  IESG  [RFC2251]
reserved (resultsTooLarge)     70  IESG  [RFC2251]
reserved                    71-79  IESG
other                          80  IESG  [RFC2251]
reserved (APIs)             81-90  IESG  [RFC2251]
ToP   noToC   RFC3383 - Page 22

B.7. Bind Authentication Method

Method Value Owner Usage Reference ------ ----- ----- ----------- ----------------- simple 0 IESG LIMITED USE [RFC2251,RFC2829] krbv42LDAP 1 IESG OBSOLETE* [RFC1777] krbv42DSA 2 IESG OBSOLETE* [RFC1777] sasl 3 IESG COMMON [RFC2251,RFC2829] * These LDAPv2-only mechanisms were deprecated in favor of the LDAPv3 SASL authentication method, specifically the GSSAPI mechanism.

Author's Address

Kurt D. Zeilenga OpenLDAP Foundation EMail: Kurt@OpenLDAP.org
ToP   noToC   RFC3383 - Page 23
Full Copyright Statement

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

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   or assist in its implementation may be prepared, copied, published
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   kind, provided that the above copyright notice and this paragraph are
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