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Organization Extension for the Extensible Provisioning Protocol (EPP)
draft-ietf-regext-org-ext-06

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft that was ultimately published as RFC 8544.
Authors Linlin Zhou , Ning Kong , Junkai Wei , XiaoDong Lee , James Gould
Last updated 2018-05-11 (Latest revision 2018-05-08)
Replaces draft-ietf-regext-reseller-ext
RFC stream Internet Engineering Task Force (IETF)
Formats
Reviews
Additional resources Mailing list discussion
Stream WG state WG Consensus: Waiting for Write-Up
Document shepherd Pieter Vandepitte
IESG IESG state Became RFC 8544 (Proposed Standard)
Consensus boilerplate Yes
Telechat date (None)
Responsible AD (None)
Send notices to Pieter Vandepitte <pieter.vandepitte@dnsbelgium.be>
draft-ietf-regext-org-ext-06
Internet Engineering Task Force                                  L. Zhou
Internet-Draft                                                   N. Kong
Intended status: Standards Track                                  J. Wei
Expires: November 10, 2018                                        X. Lee
                                                                   CNNIC
                                                                J. Gould
                                                          Verisign, Inc.
                                                             May 9, 2018

 Organization Extension for the Extensible Provisioning Protocol (EPP)
                      draft-ietf-regext-org-ext-06

Abstract

   This mapping which is an extension to EPP object mappings, is
   designed to support assigning an organization to any existing object
   (domain, host, contact) as well as any future objects.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at https://datatracker.ietf.org/drafts/current/.

   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."

   This Internet-Draft will expire on November 10, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of

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   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
   2.  Conventions Used in This Document . . . . . . . . . . . . . .   3
   3.  Object Attributes . . . . . . . . . . . . . . . . . . . . . .   4
     3.1.  Organization Identifier . . . . . . . . . . . . . . . . .   4
   4.  EPP Command Mapping . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  EPP Query Commands  . . . . . . . . . . . . . . . . . . .   4
       4.1.1.  EPP <check> Command . . . . . . . . . . . . . . . . .   4
       4.1.2.  EPP <info> Command  . . . . . . . . . . . . . . . . .   4
       4.1.3.  EPP <transfer> Query Command  . . . . . . . . . . . .   7
     4.2.  EPP Transform Commands  . . . . . . . . . . . . . . . . .   8
       4.2.1.  EPP <create> Command  . . . . . . . . . . . . . . . .   8
       4.2.2.  EPP <delete> Command  . . . . . . . . . . . . . . . .  10
       4.2.3.  EPP <renew> Command . . . . . . . . . . . . . . . . .  10
       4.2.4.  EPP <transfer> Command  . . . . . . . . . . . . . . .  11
       4.2.5.  EPP <update> Command  . . . . . . . . . . . . . . . .  11
   5.  Formal Syntax . . . . . . . . . . . . . . . . . . . . . . . .  15
   6.  Internationalization Considerations . . . . . . . . . . . . .  17
   7.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  17
     7.1.  XML Namespace . . . . . . . . . . . . . . . . . . . . . .  17
     7.2.  EPP Extension Registry  . . . . . . . . . . . . . . . . .  18
   8.  Implementation Status . . . . . . . . . . . . . . . . . . . .  18
     8.1.  Verisign EPP SDK  . . . . . . . . . . . . . . . . . . . .  19
     8.2.  CNNIC Implementation  . . . . . . . . . . . . . . . . . .  19
   9.  Security Considerations . . . . . . . . . . . . . . . . . . .  19
   10. Acknowledgment  . . . . . . . . . . . . . . . . . . . . . . .  20
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  20
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  20
     11.2.  Informative References . . . . . . . . . . . . . . . . .  21
   Appendix A.  Change Log . . . . . . . . . . . . . . . . . . . . .  21
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  23

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1.  Introduction

   In the business model of domain registration, we usually have 3 roles
   of entities, a registrant, a registrar and a registry.  There may be
   other roles of entities involved in the domain registration process
   which are not formally defined, such as resellers, DNS service
   operators, privacy proxy, etc.

   A domain reseller is an individual or a company that acts as a agent
   for accredited registrars.  A third-party DNS service operator is
   responsible for a zone where the operator is neither the registrant
   nor the registrar of record for the delegation.  A privacy proxy is
   an entity used for domain registrations to protect the private
   information of the individuals and organizations.  These kind of
   entities are defined as "organizations" with different role types in
   this document.

   In order to facilitate provisioning and management of organization
   information in a shared central repository, this document proposes an
   organization extension mapping for any EPP object like domain names
   in [RFC5731], hosts in [RFC5732] and contacts in [RFC5733].  The
   examples provided in this document are used for the domain object for
   illustration purpose.  The host and contact object could be extended
   in the same way with the domain object.

   An organization mapping object defined in [ID.draft-ietf-regext-org]
   SHOULD be created first.  The organization information specified in
   this document MUST reference the existing organization identifier.

   This document is specified using the XML 1.0 as described in
   [W3C.REC-xml-20040204] and XML Schema notation as described in
   [W3C.REC-xmlschema-1-20041028] and [W3C.REC-xmlschema-2-20041028].

2.  Conventions Used in This Document

   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 [RFC2119].

   In examples, "C:" represents lines sent by a protocol client and "S:"
   represents lines returned by a protocol server.  Indentation and
   white space in examples are provided only to illustrate element
   relationships and are not a REQUIRED feature of this specification.

   XML is case sensitive.  Unless stated otherwise, XML specifications
   and examples provided in this document MUST be interpreted in the
   character case presented to develop a conforming implementation.

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   orgext-1.0 in this document is used as an abbreviation for
   urn:ietf:params:xml:ns:orgext-1.0.

3.  Object Attributes

   This extension adds additional elements to EPP object mappings like
   the EPP domain name mapping [RFC5731].  Only the new elements are
   described here.

3.1.  Organization Identifier

   Organization identifier provides the ID of an organization.  Its
   corresponding element is <orgext:id> which refers to the
   <organization:id> element defined in [ID.draft-ietf-regext-org].  All
   organization objects are identified by a server-unique identifier.

4.  EPP Command Mapping

   A detailed description of the EPP syntax and semantics can be found
   in the EPP core protocol specification [RFC5730].  The command
   mappings described here are specifically for use in provisioning and
   managing organization information via EPP.

4.1.  EPP Query Commands

   EPP provides three commands to retrieve domain information: <check>
   to determine if a domain object can be provisioned within a
   repository, <info> to retrieve detailed information associated with a
   domain object, and <transfer> to retrieve domain-object transfer
   status information.

4.1.1.  EPP <check> Command

   This extension does not add any elements to the EPP <check> command
   or <check> response described in the EPP domain name mapping
   [RFC5731], host mapping [RFC5732] and contact mapping [RFC5733].

4.1.2.  EPP <info> Command

   This extension does not add any element to the EPP <info> command
   described in the EPP domain mapping [RFC5731], host mapping [RFC5732]
   and contact mapping [RFC5733].  However, additional elements are
   defined for the <info> response in the EPP domain mapping [RFC5731],
   host mapping [RFC5732] and contact mapping [RFC5733].

   When an <info> command has been processed successfully, the EPP
   <resData> element MUST contain child elements as described in the EPP
   object extensions.  In addition, the EPP <extension> element SHOULD

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   contain a child <orgext:infData> element that identifies the
   extension namespace if the object has data associated with this
   extension and based on server policy.  The <orgext:infData> element
   contains the following child elements:

   o  Zero or more <orgext:id> elements are allowed that contains the
      identifier of the organization.  The "role" attribute is used to
      represent the relationship that the organization has to the
      object.  See Section 7.3 in [ID.draft-ietf-regext-org] for a list
      of values.

   Example <info> response for an authorized client with multiple
   organizations:

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   S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:  <response>
   S:   <result code="1000">
   S:      <msg lang="en-US">Command completed successfully</msg>
   S:    </result>
   S:    <resData>
   S:      <domain:infData
   S:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:        <domain:name>example.com</domain:name>
   S:        <domain:roid>EXAMPLE1-REP</domain:roid>
   S:        <domain:status s="ok"/>
   S:        <domain:registrant>jd1234</domain:registrant>
   S:        <domain:contact type="admin">sh8013</domain:contact>
   S:        <domain:contact type="billing">sh8013</domain:contact>
   S:        <domain:contact type="tech">sh8013</domain:contact>
   S:        <domain:ns>
   S:          <domain:hostObj>ns1.example.com</domain:hostObj>
   S:        </domain:ns>
   S:        <domain:clID>ClientX</domain:clID>
   S:        <domain:crID>ClientY</domain:crID>
   S:        <domain:crDate>2015-02-06T04:01:21.0Z</domain:crDate>
   S:        <domain:exDate>2018-02-06T04:01:21.0Z</domain:exDate>
   S:        <domain:authInfo>
   S:          <domain:pw>2fooBAR</domain:pw>
   S:        </domain:authInfo>
   S:      </domain:infData>
   S:    </resData>
   S:    <extension>
   S:      <orgext:infData
   S:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   S:        <orgext:id role="reseller">myreseller</orgext:id>
   S:        <orgext:id role="privacyproxy">myproxy</orgext:id>
   S:      </orgext:infData>
   S:    </extension>
   S:    <trID>
   S:      <clTRID>ngcl-IvJjzMZc</clTRID>
   S:      <svTRID>test142AWQONJZ</svTRID>
   S:    </trID>
   S:  </response>
   S:</epp>

   Example <info> response for an authorized client with no
   organization:

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   S:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   S:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   S:  <response>
   S:   <result code="1000">
   S:      <msg lang="en-US">Command completed successfully</msg>
   S:    </result>
   S:    <resData>
   S:      <domain:infData
   S:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   S:        <domain:name>example.com</domain:name>
   S:        <domain:roid>EXAMPLE1-REP</domain:roid>
   S:        <domain:status s="ok"/>
   S:        <domain:registrant>jd1234</domain:registrant>
   S:        <domain:contact type="admin">sh8013</domain:contact>
   S:        <domain:contact type="billing">sh8013</domain:contact>
   S:        <domain:contact type="tech">sh8013</domain:contact>
   S:        <domain:ns>
   S:          <domain:hostObj>ns1.example.com</domain:hostObj>
   S:        </domain:ns>
   S:        <domain:clID>ClientX</domain:clID>
   S:        <domain:crID>ClientY</domain:crID>
   S:        <domain:crDate>2015-02-06T04:01:21.0Z</domain:crDate>
   S:        <domain:exDate>2018-02-06T04:01:21.0Z</domain:exDate>
   S:        <domain:authInfo>
   S:          <domain:pw>2fooBAR</domain:pw>
   S:        </domain:authInfo>
   S:      </domain:infData>
   S:    </resData>
   S:    <extension>
   S:      <orgext:infData
   S:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0"/>
   S:    </extension>
   S:    <trID>
   S:      <clTRID>ngcl-IvJjzMZc</clTRID>
   S:      <svTRID>test142AWQONJZ</svTRID>
   S:    </trID>
   S:  </response>
   S:</epp>

   An EPP error response MUST be returned if an <info> command cannot be
   processed for any reason.

4.1.3.  EPP <transfer> Query Command

   This extension does not add any elements to the EPP <transfer> query
   command or <transfer> query response described in the EPP domain name
   mapping [RFC5731], host mapping [RFC5732] and contact mapping
   [RFC5733].

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4.2.  EPP Transform Commands

   EPP provides five commands to transform domain objects: <create> to
   create an instance of a domain object, <delete> to delete an instance
   of a domain object, <renew> to extend the validity period of a domain
   object, <transfer> to manage domain object sponsorship changes, and
   <update> to change information associated with a domain object.

4.2.1.  EPP <create> Command

   This extension defines additional elements for the EPP <create>
   command described in the EPP object extensions.  No additional
   elements are defined for the EPP <create> response.

   The EPP <create> command provides a transform operation that allows a
   client to create an object.  In addition to the EPP command elements
   described in the EPP object extensions, the command MUST contain an
   <extension> element, and the <extension> element MUST contain a child
   <orgext:create> element that identifies the extension namespace if
   the client wants to associate data defined in this extension to the
   object.  The <orgext:create> element contains the following child
   elements:

   o  One or more <orgext:id> elements that contains the identifier of
      the organization.  The "role" attribute is used to represent the
      relationship that the organization has to the object.  See
      Section 7.3 in [ID.draft-ietf-regext-org] for a list of values.

   Example <create> Command with only one organization:

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   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <create>
   C:      <domain:create
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.com</domain:name>
   C:        <domain:period unit="y">3</domain:period>
   C:        <domain:ns>
   C:          <domain:hostObj>ns1.example.com</domain:hostObj>
   C:        </domain:ns>
   C:        <domain:registrant>jd1234</domain:registrant>
   C:        <domain:contact type="tech">sh8013</domain:contact>
   C:        <domain:contact type="billing">sh8013</domain:contact>
   C:        <domain:contact type="admin">sh8013</domain:contact>
   C:        <domain:authInfo>
   C:          <domain:pw>fooBAR</domain:pw>
   C:        </domain:authInfo>
   C:      </domain:create>
   C:    </create>
   C:    <extension>
   C:      <orgext:create
   C:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   C:        <orgext:id role="reseller">myreseller</orgext:id>
   C:      </orgext:create>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   Example <create> Command with multiple organizations:

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   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <create>
   C:      <domain:create
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.com</domain:name>
   C:        <domain:period unit="y">3</domain:period>
   C:        <domain:ns>
   C:          <domain:hostObj>ns1.example.com</domain:hostObj>
   C:        </domain:ns>
   C:        <domain:registrant>jd1234</domain:registrant>
   C:        <domain:contact type="tech">sh8013</domain:contact>
   C:        <domain:contact type="billing">sh8013</domain:contact>
   C:        <domain:contact type="admin">sh8013</domain:contact>
   C:        <domain:authInfo>
   C:          <domain:pw>fooBAR</domain:pw>
   C:        </domain:authInfo>
   C:      </domain:create>
   C:    </create>
   C:    <extension>
   C:      <orgext:create
   C:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   C:        <orgext:id role="reseller">myreseller</orgext:id>
   C:        <orgext:id role="privacyproxy">myproxy</orgext:id>
   C:      </orgext:create>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   When a <create> command has been processed successfully, the EPP
   response is as described in the EPP object extension.

   An EPP error response MUST be returned if a <create> command cannot
   be processed for any reason.

4.2.2.  EPP <delete> Command

   This extension does not add any elements to the EPP <delete> command
   or <delete> response described in the EPP domain mapping [RFC5731],
   host mapping [RFC5732] and contact mapping [RFC5733].

4.2.3.  EPP <renew> Command

   This extension does not add any elements to the EPP <renew> command
   or <renew> response described in the EPP domain mapping [RFC5731],
   host mapping [RFC5732] and contact mapping [RFC5733].

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4.2.4.  EPP <transfer> Command

   This extension does not add any elements to the EPP <transfer>
   command or <transfer> response described in the EPP domain mapping
   [RFC5731], host mapping [RFC5732] and contact mapping [RFC5733], but
   after a successful transfer of an object with an assigned
   organization, the handling of the assigned organization is dependent
   on the organization roles and server policy.

4.2.5.  EPP <update> Command

   This extension defines additional elements for the EPP <update>
   command described in the EPP domain mapping [RFC5731], host mapping
   [RFC5732] and contact mapping [RFC5733].  No additional elements are
   defined for the EPP <update> response.

   The EPP <update> command provides a transform operation that allows a
   client to modify the attribute of an object.  In addition to the EPP
   <update> command elements, the command MUST contain an <extension>
   element, and the <extension> element MUST contain a child
   <orgext:update> element that identifies the extension namespace if
   the client wants to update the object with data defined in this
   extension.  The <orgext:update> element contains the following child
   elements:

   o  An OPTIONAL <orgext:add> element that contains attribute values to
      be added to the object.

   o  An OPTIONAL <orgext:rem> element that contains attribute values to
      be removed from the object.

   o  An OPTIONAL <orgext:chg> element that contains attribute values to
      be changed.

   At least one and only one <orgext:add>, <orgext:rem> or <orgext:chg>
   element MUST be provided.  The <orgext:add>, <orgext:rem> and
   <orgext:chg> elements contain the following child element:

   o  One or more <orgext:id> elements that contains the identifier of
      the organization.  The "role" attribute is used to represent the
      relationship that the organization has to the object.  See
      Section 7.3 in [ID.draft-ietf-regext-org] for a list of values.

   Example <update> command, adding a reseller:

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   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <update>
   C:      <domain:update
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.com</domain:name>
   C:      </domain:update>
   C:    </update>
   C:    <extension>
   C:      <orgext:update
   C:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   C:        <orgext:add>
   C:          <orgext:id role="reseller">myreseller</orgext:id>
   C:        </orgext:add>
   C:      </orgext:update>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   Example <update> command, adding multiple organizations:

   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <update>
   C:      <domain:update
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.com</domain:name>
   C:      </domain:update>
   C:    </update>
   C:    <extension>
   C:      <orgext:update
   C:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   C:        <orgext:add>
   C:          <orgext:id role="reseller">myreseller</orgext:id>
   C:          <orgext:id role="privacyproxy">myproxy</orgext:id>
   C:        </orgext:add>
   C:      </orgext:update>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   Example <update> command, removing a reseller:

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   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <update>
   C:      <domain:update
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.com</domain:name>
   C:      </domain:update>
   C:    </update>
   C:    <extension>
   C:      <orgext:update
   C:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   C:        <orgext:rem>
   C:          <orgext:id role="reseller"/>
   C:        </orgext:rem>
   C:      </orgext:update>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   Example <update> command, removing multiple organizations:

   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <update>
   C:      <domain:update
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.com</domain:name>
   C:      </domain:update>
   C:    </update>
   C:    <extension>
   C:      <orgext:update
   C:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   C:        <orgext:rem>
   C:          <orgext:id role="reseller"/>
   C:          <orgext:id role="privacyproxy"/>
   C:        </orgext:rem>
   C:      </orgext:update>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   Example <update> command, updating reseller identifier:

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   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <update>
   C:      <domain:update
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.com</domain:name>
   C:      </domain:update>
   C:    </update>
   C:    <extension>
   C:      <orgext:update
   C:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   C:        <orgext:chg>
   C:          <orgext:id role="reseller">myreseller</orgext:id>
   C:        </orgext:chg>
   C:      </orgext:update>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   Example <update> command, updating multiple organization identifiers:

   C:<?xml version="1.0" encoding="UTF-8" standalone="no"?>
   C:<epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
   C:  <command>
   C:    <update>
   C:      <domain:update
   C:        xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
   C:        <domain:name>example.com</domain:name>
   C:      </domain:update>
   C:    </update>
   C:    <extension>
   C:      <orgext:update
   C:        xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0">
   C:        <orgext:chg>
   C:          <orgext:id role="reseller">myreseller</orgext:id>
   C:          <orgext:id role="privacyproxy">myproxy</orgext:id>
   C:        </orgext:chg>
   C:     </orgext:update>
   C:    </extension>
   C:    <clTRID>ABC-12345</clTRID>
   C:  </command>
   C:</epp>

   When an extended <update> command has been processed successfully,
   the EPP response is as described in the EPP object extension.

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5.  Formal Syntax

   An EPP object mapping is specified in XML Schema notation.  The
   formal syntax presented here is a complete schema representation of
   the object mapping suitable for automated validation of EPP XML
   instances.  The BEGIN and END tags are not part of the schema; they
   are used to note the beginning and ending of the schema for URI
   registration purposes.

   BEGIN
   <?xml version="1.0" encoding="UTF-8"?>

   <schema
     targetNamespace="urn:ietf:params:xml:ns:orgext-1.0"
     xmlns:orgext="urn:ietf:params:xml:ns:orgext-1.0"
     xmlns="http://www.w3.org/2001/XMLSchema"
     elementFormDefault="qualified"
   >

     <annotation>
       <documentation>
         Extensible Provisioning Protocol v1.0
         Organization Extension Schema v1.0
       </documentation>
     </annotation>

     <!-- Child elements found in EPP commands. -->
     <element
       name="create"
       type="orgext:createType"/>
     <element
       name="update"
       type="orgext:updateType"/>

     <!--
       Organization identifier with required role
     -->
     <complexType name="orgIdType">
       <simpleContent>
         <extension base="token">
           <attribute
             name="role"
             type="token"
             use="required"/>
         </extension>
       </simpleContent>
     </complexType>

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     <!--
       Child elements of the <orgext:create> command
       All elements must be present at time of creation
     -->
     <complexType name="createType">
       <sequence>
         <!-- agent identifier or the organization,
           e.g. registrar, reseller, privacy proxy, etc. -->
         <element
           name="id"
           type="orgext:orgIdType"
           maxOccurs="unbounded"/>
       </sequence>
     </complexType>

     <!--
       Child elements of <orgext:update> command
     -->
     <complexType name="updateType">
       <sequence>
         <element
           name="add"
           type="orgext:addRemChgType"
           minOccurs="0"
         />
         <element
           name="rem"
           type="orgext:addRemChgType"
           minOccurs="0"
         />
         <element
           name="chg"
           type="orgext:addRemChgType"
           minOccurs="0"
         />
       </sequence>
     </complexType>

     <complexType name="addRemChgType">
       <sequence>
         <!-- agent identifier of the organization,
           e.g. registrar, reseller, privacy proxy, etc. -->
         <element
           name="id"
           type="orgext:orgIdType"
           maxOccurs="unbounded"/>
       </sequence>
     </complexType>

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     <!-- Child response element -->
     <element
       name="infData"
       type="orgext:infDataType"/>

     <!-- <orgext:infData> response elements -->
     <complexType name="infDataType">
       <sequence>
         <!-- agent identifier the organization,
           e.g. registrar, reseller, privacy proxy, etc. -->
         <element
           name="id"
           type="orgext:orgIdType"
           minOccurs="0"
           maxOccurs="unbounded"/>
       </sequence>
     </complexType>

     <!-- End of schema. -->
   </schema>
   END

6.  Internationalization Considerations

   EPP is represented in XML, which provides native support for encoding
   information using the Unicode character set and its more compact
   representations including UTF-8.  Conformant XML processors recognize
   both UTF-8 and UTF-16.  Though XML includes provisions to identify
   and use other character encodings through use of an "encoding"
   attribute in an <?xml?> declaration, use of UTF-8 is RECOMMENDED.

   As an extension of the EPP domain name mapping, the elements, element
   content described in this document MUST inherit the
   internationalization conventions used to represent higher-layer
   domain and core protocol structures present in an XML instance that
   includes this extension.

7.  IANA Considerations

7.1.  XML Namespace

   This document uses URNs to describe XML namespaces and XML schemas
   conforming to a registry mechanism described in [RFC3688].  IANA is
   requested to assignment the following URI.

   Registration request for the organization namespace:

      URI: urn:ietf:params:xml:ns:orgext-1.0

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      Registrant Contact: IESG

      XML: See the "Formal Syntax" section of this document.

7.2.  EPP Extension Registry

   The EPP extension described in this document should be registered by
   the IANA in the EPP Extension Registry described in [RFC7451].  The
   details of the registration are as follows:

   Name of Extension: Organization Extension for the Extensible
   Provisioning Protocol (EPP)

   Registrant Name and Email Address: IESG, iesg@ietf.org

   TLDs: Any

   IPR Disclosure: None

   Status: Active

   Notes: None

8.  Implementation Status

   Note to RFC Editor: Please remove this section and the reference to
   [RFC7942] before publication.  This section records the status of
   known implementations of the protocol defined by this specification
   at the time of posting of this Internet-Draft, and is based on a
   proposal described in [RFC7942].  The description of implementations
   in this section is intended to assist the IETF in its decision
   processes in progressing drafts to RFCs.  Please note that the
   listing of any individual implementation here does not imply
   endorsement by the IETF.  Furthermore, no effort has been spent to
   verify the information presented here that was supplied by IETF
   contributors.  This is not intended as, and must not be construed to
   be, a catalog of available implementations or their features.
   Readers are advised to note that other implementations may exist.

   According to [RFC7942], "this will allow reviewers and working groups
   to assign due consideration to documents that have the benefit of
   running code, which may serve as evidence of valuable experimentation
   and feedback that have made the implemented protocols more mature.
   It is up to the individual working groups to use this information as
   they see fit".

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8.1.  Verisign EPP SDK

   Organization: Verisign Inc.

   Name: Verisign EPP SDK

   Description: The Verisign EPP SDK includes both a full client
   implementation and a full server stub implementation of draft-ietf-
   regext-org-ext.

   Level of maturity: Development

   Coverage: All aspects of the protocol are implemented.

   Licensing: GNU Lesser General Public License

   Contact: jgould@verisign.com

   URL: https://www.verisign.com/en_US/channel-resources/domain-
   registry-products/epp-sdks

8.2.  CNNIC Implementation

   Organization: CNNIC

   Name: Organization Extension for EPP

   Description: CNNIC is trying to update organization extension from
   previous reseller extension according to this document.

   Level of maturity: Development

   Coverage: Organization extension for EPP

   Contact: zhouguiqing@cnnic.cn

9.  Security Considerations

   The object mapping extension described in this document does not
   provide any other security services or introduce any additional
   considerations beyond those described by [RFC5730], [RFC5731],
   [RFC5732] and [RFC5733] or those caused by the protocol layers used
   by EPP.

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10.  Acknowledgment

   The authors would like to thank Rik Ribbers, Marc Groeneweg, Patrick
   Mevzek, Antoin Verschuren and Scott Hollenbeck for their careful
   review and valuable comments.

11.  References

11.1.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/info/rfc2119>.

   [RFC3688]  Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688,
              DOI 10.17487/RFC3688, January 2004,
              <https://www.rfc-editor.org/info/rfc3688>.

   [RFC5730]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)",
              STD 69, RFC 5730, DOI 10.17487/RFC5730, August 2009,
              <https://www.rfc-editor.org/info/rfc5730>.

   [RFC5731]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)
              Domain Name Mapping", STD 69, RFC 5731,
              DOI 10.17487/RFC5731, August 2009,
              <https://www.rfc-editor.org/info/rfc5731>.

   [RFC5732]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)
              Host Mapping", STD 69, RFC 5732, DOI 10.17487/RFC5732,
              August 2009, <https://www.rfc-editor.org/info/rfc5732>.

   [RFC5733]  Hollenbeck, S., "Extensible Provisioning Protocol (EPP)
              Contact Mapping", STD 69, RFC 5733, DOI 10.17487/RFC5733,
              August 2009, <https://www.rfc-editor.org/info/rfc5733>.

   [RFC7942]  Sheffer, Y. and A. Farrel, "Improving Awareness of Running
              Code: The Implementation Status Section", BCP 205,
              RFC 7942, DOI 10.17487/RFC7942, July 2016,
              <https://www.rfc-editor.org/info/rfc7942>.

   [W3C.REC-xml-20040204]
              Bray, T., Paoli, J., Sperberg-McQueen, C., Maler, E., and
              F. Yergeau, ""Extensible Markup Language (XML) 1.0 (Third
              Edition)", World Wide Web Consortium FirstEdition REC-xml-
              20040204", February 2004,
              <http://www.w3.org/TR/2004/REC-xml-20040204>.

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   [W3C.REC-xmlschema-1-20041028]
              Thompson, H., Beech, D., Maloney, M., and N. Mendelsohn,
              ""XML Schema Part 1: Structures Second Edition", World
              Wide Web Consortium Recommendation REC-xmlschema-
              1-20041028", October 2004,
              <http://www.w3.org/TR/2004/REC-xmlschema-1-20041028>.

   [W3C.REC-xmlschema-2-20041028]
              Biron, P. and A. Malhotra, ""XML Schema Part 2: Datatypes
              Second Edition", World Wide Web Consortium Recommendation
              REC-xmlschema-2-20041028", October 2004,
              <http://www.w3.org/TR/2004/REC-xmlschema-2-20041028>.

11.2.  Informative References

   [ID.draft-ietf-regext-org]
              Zhou, L., Kong, N., Zhou, G., Lee, X., and J. Gould,
              "Extensible Provisioning Protocol (EPP) Reseller Mapping",
              Apr 2018,
              <http://tools.ietf.org/html/draft-ietf-regext-org>.

   [RFC7451]  Hollenbeck, S., "Extension Registry for the Extensible
              Provisioning Protocol", RFC 7451, DOI 10.17487/RFC7451,
              February 2015, <https://www.rfc-editor.org/info/rfc7451>.

Appendix A.  Change Log

   Initial -00:  Individual document submitted.

   -01:

      *  Updated abstract and introduction.

      *  Revised typos in info response.

      *  Added explanations on how to process reseller extension after
         successful transfer operation.

      *  Modified <update> explanation.

      *  Deleted reseller name element in <create> and <update>
         commands.

      *  Removed some inaccurate comments from xml schema.

      *  Modified the element name of reseller id and reseller name.

   -02:

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      *  Changed author information.

      *  Updated xml typos <reseller:infData> to <resellerext:infData>
         in <info> response.

   -03:

      *  Changed author information.

      *  Updated section 3.1.

      *  Removed reseller name element in <info> response.

      *  Added acknowledgment.

      *  Revised the typo "resellerr" to "resellerext".

   WG document-00:  WG document submitted

   WG document-01:  Keep document alive for further discussion.  The
      requirement of reseller information is clear for both registrar
      and registry.  What we should reach a consensus is whether the
      extension should support only a name or ID and name.

   Organization WG document-00:  Change to a generic organization object
      extension.

   Organization WG document-01:  Added "Implementation Status" section.

   Organization WG document-02:  Accepted some of the feedbacks on the
      mailing list.  Modified the examples in the document.

   Organization WG document-03:

      *  Updated typos.

      *  Changed some descriptions about <orgext:id> and role attribute.

      *  Modified the example of "domain with no organization".

      *  Updated section 8, adding implementation status of Verisign.

   Organization WG document-04:

      *  Updated typos.

      *  Removed the example of <update> command, domain with no
         organization.

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      *  Updated references.

      *  Updated section 8 of implementation status.

   Organization WG document-05:

      *  Removed the minOccurs="0" from the addRemChgType type of the
         XML schema

      *  Removed the third paragraph of "Implementation Status".

      *  Remove the Informative Reference to draft-ietf-regext-reseller-
         ext from the draft.

   Organization WG document-06:

      *  Updated "Abstraction".

      *  Added "Query" for "<Transfer> Query Command".

      *  Change "Registrant Contact" to IESG in section 7.1.

      *  Modified section 7.2.

Authors' Addresses

   Linlin Zhou
   CNNIC
   4 South 4th Street, Zhongguancun, Haidian District
   Beijing, Beijing  100190
   China

   Phone: +86 10 5881 2677
   Email: zhoulinlin@cnnic.cn

   Ning Kong
   CNNIC
   4 South 4th Street, Zhongguancun, Haidian District
   Beijing, Beijing  100190
   China

   Phone: +86 10 5881 3147
   Email: nkong@cnnic.cn

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   Junkai Wei
   CNNIC
   4 South 4th Street, Zhongguancun, Haidian District
   Beijing, Beijing  100190
   China

   Phone: +86 10 5881 3494
   Email: weijunkai@cnnic.cn

   Xiaodong Lee
   CNNIC
   4 South 4th Street, Zhongguancun, Haidian District
   Beijing, Beijing  100190
   China

   Email: xl@cnnic.cn

   James Gould
   Verisign, Inc.
   12061 Bluemont Way
   Reston, VA  20190
   US

   Email: jgould@verisign.com

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