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INTERNET-DRAFT                                                  Michael P. Armijo
Status: Informational                                           Microsoft Corporation
January 1999
Expires July 1999


                             Active Directory Syntaxes
                        draft-armijo-ldap-syntax-00.txt


1. Status of this Memo


This memo provides information for the Internet community. It does not specify
an Internet standard of any kind. Distribution of this memo is unlimited.

This document is an Internet-Draft. 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."

To view the entire list of current Internet-Drafts, please check the "1id-
abstracts.txt" listing contained in the Internet-Drafts Shadow Directories on
ftp.is.co.za (Africa), ftp.nordu.net (Northern Europe), ftp.nis.garr.it
(Southern Europe), munnari.oz.au (Pacific Rim), ftp.ietf.org (US East Coast), or
ftp.isi.edu (US West Coast).

2. Abstract

The purpose of this document is to inform the Internet community of LDAP
syntaxes available in the Windows NT Active Directory.  These syntaxes provide
additional functionality to the Active Directory.


3. RFC Key Words

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 RFC 2119.


4. LDAP Syntaxes

CaseIgnoreString: 1.2.840.113556.1.4.905
        Encoded as a Printable String (OID 1.3.6.1.4.1.1466.115.121.1.44)


OR-Name: 1.2.840.113556.1.4.1221
        Encoded as:
        ORName = DN | "X400:" ORaddress "#X500:" DN | "X400:"ORaddress
        DN = normally encoded rfc 1779 name
        ORaddress = some string encoding for OR addresses.

Note that an unescaped # character must not be legal in this encoding.
This is necessary to be able to identify where the #X500 starts if the
middle choice of the encoding is chosen.


DNWithOctetString: 1.2.840.113556.1.4.903
        Encoded as a :
        DNWithOctetString  = OctetTag ':' Count ':' OctetString ':' DN
        OctetTag = 'B' | 'b'
        Count = positive decimal number, counting number of encoded characters
                in OctetString
        OctetString = [EncodedByte]*  // Note: the number of characters in the
                string encoding of the OctetString is Count.
        EncodedByte = [0-9 | a-f | A-F] [0-9 | a-f | A-F]
        DN = <normal string encoding of a DN>

        As an example, the string encoding of the combination of 0x74 0x65 0x73
        0x74 and DC=Microsoft,DC=Com is

        B:8:74657374:DC=Microsoft,DC=Com


DNWithString: 1.2.840.113556.1.4.904
        Encoded as a :
        DNWithString  = StringTag ':' Count ':' String ':' DN
        OctetTag = 'S' | 's'
        Count = positive decimal number, counting number of bytes in String
        String = <normally encoded (i.e. UTF8 for V3) string>  // Note: the number
        of bytes in the string encoding of the String is Count.

        DN = <normal string encoding of a DN>

        As an example, the string encoding of the combination of "test" and
        DC=Microsoft,DC=Com is

        B:4:test:DC=Microsoft,DC=Com

        As an example, the string encoding of the combination of XYZ (where X, Y,
        and Z all have two byte UTF-8 encodings) and DC=Microsoft,DC=Com is

        B:6:XYZ:DC=Microsoft,DC=Com

Note: Characters with multibyte UTF-8 encodings contribute more than one to the count


Large-Integer: 1.2.840.113556.1.4.906
        Encoded as an Integer (OID 1.3.6.1.4.1.1466.115.121.1.27), but guaranteed
        to support 64 bit numbers.


Object-Security-Descriptor: 1.2.840.113556.1.4.907
        Encoded as an Octet-String (OID 1.3.6.1.4.1.1466.115.121.1.40)


5. References

[RFC 2251]
    M. Wahl, T. Howes, S. Kille, "Lightweight Directory Access Protocol
    (v3)", RFC 2251, December 1997.  1997.

[RFC 2119]
    Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels,"
    RFC 2119, Harvard University, March 1997.


6. Authors Address

 Michael P. Armijo
 One Microsoft Way
 Redmond, WA
 98052
 USA

 (425)882-8080
 micharm@microsoft.com


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