One document matched: draft-zeilenga-ldap-user-schema-mr-00.txt
INTERNET-DRAFT Editor: Kurt D. Zeilenga
Intended Category: Standard Track OpenLDAP Foundation
Expires in six months 5 June 2003
Updates: RFC 2798
LDAP: Additional Matching Rules
<draft-zeilenga-ldap-user-schema-mr-00.txt>
Status of this Memo
This document is an Internet-Draft and is in full conformance with all
provisions of Section 10 of RFC2026.
This document is a subset of technical specification offered in
draft-zeilenga-ldap-user-schema-xx.txt.
This document is intended to be, after appropriate review and
revision, submitted to the RFC Editor as a Standard Track document.
Distribution of this memo is unlimited. Technical discussion of this
document will take place on the IETF Directory Interest mailing list
<directory@apps.ietf.org>. Please send editorial comments directly to
the author <Kurt@OpenLDAP.org>.
Internet-Drafts are working documents of the Internet Engineering Task
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Copyright (C) The Internet Society (2003). 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 provides a collection of matching rules for use with the
Lightweight Directory Access Protocol (LDAP). As these matching rules
are simple adaptations of matching rules specified for use with the
X.500 Directory, most are already in wide use.
Table of Contents (to be expanded by editor)
Status of this Memo 1
Abstract 2
Table of Contents
1. Background and Intended Use
2. Matching Rules 3
2.1. booleanMatch
2.2. caseExactMatch
2.3. caseExactOrderingMatch
2.4. caseExactSubstringsMatch 4
2.5. caseIgnoreListSubstringsMatch
2.6. directoryStringFirstComponentMatch
2.7. integerOrderingMatch 5
2.8. keywordMatch
2.9. numericStringOrderingMatch
2.10. octetStringOrderingMatch 6
2.11. storedPrefixMatch
2.12. wordMatch
3. Security Considerations 7
4. IANA Considerations
5. Acknowledgments 8
6. Author's Address
7. Normative References
8. Informative References
Intellectual Property Rights 9
Full Copyright
1. Background and Intended Use
This document adapts additional X.500 Directory [X.500] matching rules
[X.520] for use with the Lightweight Directory Access Protocol (LDAP)
[RFC3377]. Most of these rules are widely used today on the Internet,
such as in support of the inetOrgPerson [RFC2798] and Policy Core
Information Model [PCIM] LDAP schemas. The rules are applicable to
many other applications.
This document supersedes the informational matching rules descriptions
provided in RFC 2798 that are now provided in this document.
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Specifically, section 2 of this document replaces section 9.3.3 of RFC
2798.
Schema definitions are provided using LDAP description formats
[RFC2252]. Definitions provided here are formatted (line wrapped) for
readability.
2. Matching Rules
2.1. booleanMatch
The booleanMatch rule compares for equality a asserted Boolean value
with an attribute value of BOOLEAN syntax. The rule returns TRUE if
and only if the values are the same, i.e. both are TRUE or both are
FALSE. (Source: X.520)
( 2.5.13.13 NAME 'booleanMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.7 )
The BOOLEAN (1.3.6.1.4.1.1466.115.121.1.7) syntax is described in
[RFC2252].
2.2. caseExactMatch
The caseExactMatch rule compares for equality the asserted value with
an attribute value of DirectoryString syntax. The rule is identical
to the caseIgnoreMatch [RFC2252] rule except that case is not ignored.
(Source: X.520)
( 2.5.13.5 NAME 'caseExactMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
The DirectoryString (1.3.6.1.4.1.1466.115.121.1.15) syntax is
described in [RFC2252].
2.3. caseExactOrderingMatch
The caseExactOrderingMatch rule compares the collation order of the
asserted string with an attribute value of DirectoryString syntax.
The rule is identical to the caseIgnoreOrderingMatch [RFC2252] rule
except that letters are not folded. (Source: X.520)
( 2.5.13.6 NAME 'caseExactOrderingMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
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The DirectoryString (1.3.6.1.4.1.1466.115.121.1.15) syntax is
described in [RFC2252].
2.4. caseExactSubstringsMatch
The caseExactSubstringsMatch rule determines whether the asserted
value(s) are substrings of an attribute value of DirectoryString
syntax. The rule is identical to the caseIgnoreSubstringsMatch
[RFC2252] rule except that case is not ignored. (Source: X.520)
( 2.5.13.7 NAME 'caseExactSubstringsMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.58 )
The SubstringsAssertion (1.3.6.1.4.1.1466.115.121.1.58) syntax is
described in [RFC2252].
2.5. caseIgnoreListSubstringsMatch
The caseIgnoreListSubstringMatch rule compares the asserted substring
with an attribute value which is a sequence of DirectoryStrings, but
where the case (upper or lower) is not significant for comparison
purposes. The asserted value matches a stored value if and only if
the asserted value matches the string formed by concatenating the
strings of the stored value. This matching is done according to the
caseIgnoreSubstringsMatch [RFC2252] rule; however, none of the
initial, any, or final values of the asserted value are considered to
match a substring of the concatenated string which spans more than one
of the strings of the stored value. (Source: X.520)
( 2.5.13.12 NAME 'caseIgnoreListSubstringsMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.58 )
The SubstringsAssertion (1.3.6.1.4.1.1466.115.121.1.58) syntax is
described in [RFC2252].
2.6. directoryStringFirstComponentMatch
The directoryStringFirstComponentMatch rule compares for equality the
asserted DirectoryString value with an attribute value of type
SEQUENCE whose first component is mandatory and of type
DirectoryString. The rule returns TRUE if and only if the attribute
value has a first component whose value matches the asserted
DirectoryString using the rules of caseIgnoreMatch [RFC2252]. A value
of the assertion syntax is derived from a value of the attribute
syntax by using the value of the first component of the SEQUENCE.
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(Source: X.520)
( 2.5.13.31 NAME 'directoryStringFirstComponentMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
The DirectoryString (1.3.6.1.4.1.1466.115.121.1.15) syntax is
described in [RFC2252].
2.7. integerOrderingMatch
The integerOrderingMatch rule compares the ordering of the asserted
integer with an attribute value of INTEGER syntax. The rule returns
True if the attribute value is less than the asserted value. (Source:
X.520)
( 2.5.13.15 NAME 'integerOrderingMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.27 )
The INTEGER (1.3.6.1.4.1.1466.115.121.1.27) syntax is described in
[RFC2252].
2.8. keywordMatch
The keywordMatch rule compares the asserted string with keywords in an
attribute value of DirectoryString syntax. The rule returns TRUE if
and only if the asserted value matches any keyword in the attribute
value. The identification of keywords in an attribute value and of
the exactness of match are both implementation specific. (Source:
X.520)
( 2.5.13.32 NAME 'keywordMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
The DirectoryString (1.3.6.1.4.1.1466.115.121.1.15) syntax is
described in [RFC2252].
2.9. numericStringOrderingMatch
The numericStringOrderingMatch rule compares the collation order of
the asserted string with an attribute value of NumericString syntax.
The rule is identical to the caseIgnoreOrderingMatch [RFC2252] rule
except that all space characters are skipped during comparison (case
is irrelevant as characters are numeric). (Source: X.520)
( 2.5.13.9 NAME 'numericStringOrderingMatch'
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SYNTAX 1.3.6.1.4.1.1466.115.121.1.36 )
The NumericString (1.3.6.1.4.1.1466.115.121.1.36) syntax is described
in [RFC2252].
2.10. octetStringOrderingMatch
The octetStringOrderingMatch rule compares the collation order of the
asserted octet string with an attribute value of OCTET STRING syntax.
The rule compares octet strings from first octet to last octet, and
from the most significant bit to the least significant bit within the
octet. The first occurrence of a different bit determines the ordering
of the strings. A zero bit precedes a one bit. If the strings are
identical but contain different numbers of octets, the shorter string
precedes the longer string. (Source: X.520)
( 2.5.13.18 NAME 'octetStringOrderingMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.40 )
The OCTET STRING (1.3.6.1.4.1.1466.115.121.1.40) syntax is described
in [RFC2252].
2.11. storedPrefixMatch
The storedPrefixMatch rule determines whether an attribute value,
whose syntax is DirectoryString is a prefix (i.e. initial substring)
of the asserted value, without regard to the case (upper or lower) of
the strings. The rule returns TRUE if and only if the attribute value
is an initial substring of the asserted value with corresponding
characters identical except possibly with regard to case. (Source:
X.520)
( 2.5.13.41 NAME 'storedPrefixMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
Note: This rule can be used, for example, to compare values in the
Directory which are telephone area codes with a purported value
which is a telephone number.
The DirectoryString (1.3.6.1.4.1.1466.115.121.1.15) syntax is
described in [RFC2252].
2.12. wordMatch
The wordMatch rule compares the asserted string with words in an
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attribute value of DirectoryString syntax. The rule returns TRUE if
and only if the asserted word matches any word in the attribute value.
Individual word matching is as for the caseIgnoreMatch [RFC2252]
matching rule. The precise definition of a "word" is implementation
specific. (Source: X.520)
( 2.5.13.32 NAME 'wordMatch'
SYNTAX 1.3.6.1.4.1.1466.115.121.1.15 )
The DirectoryString (1.3.6.1.4.1.1466.115.121.1.15) syntax is
described in [RFC2252].
3. Security Considerations
General LDAP security considerations [RFC3377] is applicable to the
use of this schema. Additional considerations are noted above where
appropriate.
4. IANA Considerations
It is requested that the Internet Assigned Numbers Authority (IANA)
update upon Standard Action the LDAP descriptors registry [RFC3383] as
indicated the following template:
Subject: Request for LDAP Descriptor Registration Update
Descriptor (short name): see comment
Object Identifier: see comments
Person & email address to contact for further information:
Kurt Zeilenga <kurt@OpenLDAP.org>
Usage: see comments
Specification: RFC XXXX
Author/Change Controller: IESG
Comments:
The following descriptors should be added:
NAME Type OID
------------------------ ---- ---------
booleanMatch M 2.5.13.13
caseExactMatch M 2.5.13.5
caseExactOrderingMatch M 2.5.13.6
caseExactSubstringsMatch M 2.5.13.7
caseIgnoreListSubstringsMatch M 2.5.13.12
directoryStringFirstComponentMatch M 2.5.13.31
integerOrderingMatch M 2.5.13.15
keywordMatch M 2.5.13.32
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numericStringOrderingMatch M 2.5.13.9
octetStringOrderingMatch M 2.5.13.18
storedPrefixMatch M 2.5.13.41
wordMatch M 2.5.13.32
where Type M is Matching Rule.
This document make no new OID assignments. It only associates LDAP
matching rule descriptions with existing X.500 matching rules.
5. Acknowledgments
This document borrows from [X.520], an ITU-T Recommendation.
6. Author's Address
Kurt D. Zeilenga
OpenLDAP Foundation
<Kurt@OpenLDAP.org>
7. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14 (also RFC 2119), March 1997.
[RFC2252] Wahl, M., A. Coulbeck, T. Howes, and S. Kille,
"Lightweight Directory Access Protocol (v3): Attribute
Syntax Definitions", RFC 2252, December 1997.
[RFC3377] Hodges, J. and R. Morgan, "Lightweight Directory Access
Protocol (v3): Technical Specification", RFC 3377,
September 2002.
8. Informative References
[RFC2798] Smith, M., "The LDAP inetOrgPerson Object Class", RFC
2798, April 2000.
[RFC3383] Zeilenga, K., "IANA Considerations for LDAP", BCP 64
(also RFC 3383), September 2002.
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[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.520] International Telecommunication Union -
Telecommunication Standardization Sector, "The
Directory: Selected Attribute Types", X.520(1997).
[PCIM] Strassner, J., B. Moore, R. Moats, E. Ellesson, "Policy
Core LDAP Schema", a work in progress.
Intellectual Property Rights
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Full Copyright
Copyright (C) The Internet Society (2003). All Rights Reserved.
This document and translations of it may be copied and furnished to
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distributed, in whole or in part, without restriction of any kind,
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the copyright notice or references to the Internet Society or other
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developing Internet standards in which case the procedures for
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or as required to translate it into languages other than English.
Zeilenga draft-zeilenga-ldap-user-schema-mr-00 [Page 10]
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