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2000-06-09 10:09:11 +08:00
Extended Operations for Framing LDAP Operations
Internet-Draft
Intended Category: Standards Track
Expires: September 10, 2000
Ellen Stokes
IBM Corporation
Roger Harrison
Novell, Inc.
Gordon Good
Netscape Communications Corp.
March 10, 2000
Extended Operations for Framing LDAP Operations
Filename: draft-ietf-ldup-framing-00.txt
Table of Contents
1. Status of this Memo.............................................2
2. Abstract........................................................2
3. Overview........................................................2
4. Protocol element definitions....................................3
4.1 StartFramedProtocolRequest Extended Operation...................3
4.2 StartFramedProtocolResponse Extended Operation..................3
4.3 EndFramedProtocolRequest Extended Operation.....................4
4.4 EndFramedProtocolResponse Extended Operation....................4
5. Acknowledgments.................................................5
6. References......................................................5
7. Author's Addresses..............................................5
Stokes, Harrison and Good [Page 1]
Internet-Draft LDUP Workgroup March 10, 2000
1. Status of this Memo
This document is an Internet-Draft and is in full conformance with
all provisions of Section 10 of RFC2026.
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/ietf/1id-abstracts.txt
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html.
.
This Internet Draft expires September 10, 2000.
2. Abstract
Certain types of LDAP applications can benefit from the ability to
specify the beginning and end of a related group of operations. For
example, the LDUP multimaster update protocol [ARCHITECTURE] requires
that two servers agree to begin a session to transfer pending
replication updates. This document provides a framework for
constructing protocols that feature a framed set of related
operations. It defines a pair of LDAPv3 extended operations that
provide begin-end framing, and a pair of extended operations used to
respond the begin-end framing operations. The nature of the actual
LDAP operations carried inside these framing operations is not
specified in this document.
All protocol elements described here are LDAP Version 3 extended
operations. LDAP Version 3 is described in RFC 2251 [LDAPv3].
Certain terms used in this document are defined in the document "LDAP
Replication Architecture" [ARCHITECTURE].
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", and "MAY" in this document are
to be interpreted as described in RFC 2119 [KEYWORDS].
3. Overview
This document describes two LDAPv3 Extended Operations that are used
to signal the beginning and end of a set of grouped operations, and
Stokes, Harrison and Good [Page 2]
Internet-Draft LDUP Workgroup March 10, 2000
two LDAPv3 extended operations that are used to respond to these
operations. These extended operations provide a framework that may be
used when developing a protocol that requires begin-end framing.
4. Protocol element definitions
4.1 StartFramedProtocolRequest Extended Operation
The StartFramedProtocolRequest extended operation indicates that the
initiator wishes to begin transmission of a set of related LDAP
operations. The requestValue of the StartFramedProtocolRequest
extended operation contains an OID that describes the specific framed
protocol being initiated, and a protocol-specific payload.
An LDAPv3 Extended Request is defined in [LDAPv3] as follows:
ExtendedRequest ::= [APPLICATION 23] SEQUENCE {
requestName [0] LDAPOID,
requestValue [1] OCTET STRING OPTIONAL
}
The requestName portion of the StartFramedProtocolRequest must be the
OID "2.16.840.1.113719.1.142.100.1".
The requestValue of the StartFramedProtocolRequest must be set to the
BER-encoding of the following:
StartFramedProtocolRequestValue ::= SEQUENCE {
framedProtocolOID LDAPOID,
framedProtocolPayload OPTIONAL OCTET STRING
}
The parameters in the requestValue of the StartFramedProtocolRequest
are:
- framedProtocolOID: An OID that uniquely identifies the protocol
framed by this operation. - framedProtocolPayload: An octet
string that contains protocol-specific
information.
4.2 StartFramedProtocolResponse Extended Operation
The StartFramedProtocolResponse extended operation is sent in
response to a StartFramedProtocolResponse extended operation.
An LDAPv3 Extended Response is defined in [LDAPv3] as follows:
Stokes, Harrison and Good [Page 3]
Internet-Draft LDUP Workgroup March 10, 2000
ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
COMPONENTS of LDAPResult,
responseName [10] LDAPOID OPTIONAL,
response [11] OCTET STRING OPTIONAL
}
The responseName of the StartFramedProtocolResponse must be the OID
"2.16.840.1.113719.1.142.100.2".
The response of the StartFramedProtocolResponse is set to the BER-
encoding of a protocol-specific response.
4.3 EndFramedProtocolRequest Extended Operation
The EndFramedProtocolRequest extended operation indicates the end a
set of related LDAP operations. The requestValue of the
EndFramedProtocolRequest extended operation contains a protocol-
specific payload.
An LDAPv3 Extended Request is defined in [LDAPv3] as follows:
ExtendedRequest ::= [APPLICATION 23] SEQUENCE {
requestName [0] LDAPOID,
requestValue [1] OCTET STRING OPTIONAL
}
The requestName of the EndFramedProtocolRequest must be the OID
"2.16.840.1.113719.1.142.100.4".
The requestValue of the EndFramedProtocolRequest is set to the BER-
encoding of a protocol-specific response.
4.4 EndFramedProtocolResponse Extended Operation
The EndFramedProtocolResponse extended operation is sent in response
to an EndFramedProtocolRequest.
An LDAPv3 Extended Response is defined in [LDAPv3] as follows:
ExtendedResponse ::= [APPLICATION 24] SEQUENCE {
COMPONENTS of LDAPResult,
responseName [10] LDAPOID OPTIONAL,
response [11] OCTET STRING OPTIONAL
}
The responseName of the EndFramedProtocolResponse must be the OID
"2.16.840.1.113719.1.142.100.5".
Stokes, Harrison and Good [Page 4]
Internet-Draft LDUP Workgroup March 10, 2000
The response of the EndFramedProtocolResponse is set to the BER-
encoding of a protocol-specific response.
5. Acknowledgments
The authors gratefully acknowledge the contributions of the IETF LDUP
working group.
6. References
[KEYWORDS]
S. Bradner, "Key Words for use in RFCs to Indicate Requirement Lev-
els", Harvard University, RFC 2119, March 1997.
[ARCHITECTURE]
J. Merrells, E. Reed, U. Srinivasan, "LDAP Replication Architec-
ture", Internet-Draft, draft-ietf-ldup-model-02.txt, October 1999.
[LDAPv3]
M. Wahl, S. Kille, T. Howes, "Lightweight Directory Access Protocol
(v3)", RFC 2251, December 1997.
7. Author's Addresses
Ellen Stokes
IBM
11400 Burnet Rd
Austin, TX 78758
USA
EMail: stokes@austin.ibm.com
phone: +1 512 838 3725
fax: +1 512 838 0156
Roger Harrison
Novell, Inc.
122 E. 1700 S.
Provo, UT 84606
USA
EMail: roger_harrison@novell.com
Phone: +1 801 861 2642
Gordon Good
Netscape Communications Corp.
501 E. Middlefield Rd.
Mailstop MV068
Stokes, Harrison and Good [Page 5]
Internet-Draft LDUP Workgroup March 10, 2000
Mountain View, CA 94043
USA
EMail: ggood@netscape.com
Phone: +1 650 937-3825
Appendix A - Complete ASN.1 Definition
StartFramedProtocolRequest ::= ExtendedRequest
StartFramedProtocolRequestValue ::= SEQUENCE {
framedProtocolOID LDAPOID,
framedProtocolPayload OPTIONAL OCTET STRING
}
StartFramedProtocolResponse ::= ExtendedResponse
EndFramedProtocolRequest ::= ExtendedRequest
EndFramedProtocolResponse ::= ExtendedResponse
Full Copyright Statement
Copyright (C) The Internet Society (1999). All Rights Reserved.
This document and translations of it may be copied and furnished to oth-
ers, and derivative works that comment on or otherwise explain it or
assist in its implementation may be prepared, copied, published and dis-
tributed, in whole or in part, without restriction of any kind, provided
that the above copyright notice and this paragraph are included on all
such copies and derivative works. However, this document itself may not
be modified in any way, such as by removing the copyright notice or
references to the Internet Society or other Internet organizations,
except as needed for the purpose of developing Internet standards in
which case the procedures for copyrights defined in the Internet Stan-
dards process must be followed, or as required to translate it into
languages other than English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an "AS
IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK
FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, 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 FIT-
NESS FOR A PARTICULAR PURPOSE.
Stokes, Harrison and Good [Page 6]
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