Network Working Group J. Gould Internet-Draft VeriSign, Inc. Intended status: Standards Track S. Wodjenski Expires: November 24, 2016 Neustar May 23, 2016 Allocation Token Extension for the Extensible Provisioning Protocol (EPP) draft-gould-allocation-token-04 Abstract This document describes an Extensible Provisioning Protocol (EPP) extension for including an allocation token or code for allocating an object like a domain name to the client. The allocation token MAY be transferred out-of-band to a client to give them authorization to allocate an object using one of the EPP transform commands including create, update, and transfer. 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 http://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 24, 2016. Copyright Notice Copyright (c) 2016 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 (http://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 Gould & Wodjenski Expires November 24, 2016 [Page 1] Internet-Draft allocationToken May 2016 include Simplified BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Simplified BSD License. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Conventions Used in This Document . . . . . . . . . . . . 3 2. Object Attributes . . . . . . . . . . . . . . . . . . . . . . 3 2.1. Allocation Token . . . . . . . . . . . . . . . . . . . . 3 3. EPP Command Mapping . . . . . . . . . . . . . . . . . . . . . 4 3.1. EPP Query Commands . . . . . . . . . . . . . . . . . . . 4 3.1.1. EPP Command . . . . . . . . . . . . . . . . . 4 3.1.2. EPP Command . . . . . . . . . . . . . . . . . 8 3.1.3. EPP Command . . . . . . . . . . . . . . . 10 3.2. EPP Transform Commands . . . . . . . . . . . . . . . . . 11 3.2.1. EPP Command . . . . . . . . . . . . . . . . 11 3.2.2. EPP Command . . . . . . . . . . . . . . . . 12 3.2.3. EPP Command . . . . . . . . . . . . . . . . . 12 3.2.4. EPP Command . . . . . . . . . . . . . . . 12 3.2.5. EPP Command . . . . . . . . . . . . . . . . 13 4. Formal Syntax . . . . . . . . . . . . . . . . . . . . . . . . 14 4.1. Allocation Token Extension Schema . . . . . . . . . . . . 15 5. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 15 5.1. XML Namespace . . . . . . . . . . . . . . . . . . . . . . 15 5.2. EPP Extension Registry . . . . . . . . . . . . . . . . . 16 6. Security Considerations . . . . . . . . . . . . . . . . . . . 16 7. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . 16 8. Normative References . . . . . . . . . . . . . . . . . . . . 16 Appendix A. Change History . . . . . . . . . . . . . . . . . . . 17 A.1. Change from 00 to 01 . . . . . . . . . . . . . . . . . . 17 A.2. Change from 01 to 02 . . . . . . . . . . . . . . . . . . 17 A.3. Change from 02 to 03 . . . . . . . . . . . . . . . . . . 17 A.4. Change from 03 to 04 . . . . . . . . . . . . . . . . . . 17 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 17 1. Introduction This document describes an extension mapping for version 1.0 of the Extensible Provisioning Protocol (EPP) [RFC5730]. This mapping, an extension to EPP object mappings like the EPP domain name mapping [RFC5731], for passing an allocation token one of the EPP transform commands including create, update, and transfer. The allocation token is known to the server to authorize a client that passes a matching allocation token with one of the supported EPP transform commands. It is up to server policy which EPP transform commands and which objects support the allocation token. The allocation token MAY Gould & Wodjenski Expires November 24, 2016 [Page 2] Internet-Draft allocationToken May 2016 be returned to an authorized client for passing out-of-band to a client that uses it with an EPP transform command. 1.1. 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 RFC 2119 [RFC2119]. XML is case sensitive. Unless stated otherwise, XML specifications and examples provided in this document MUST be interpreted in the character case presented in order to develop a conforming implementation. 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 protocol. "allocationToken-1.0" is used as an abbreviation for "urn:ietf:params:xml:ns:allocationToken-1.0". The XML namespace prefix "allocationToken" is used, but implementations MUST NOT depend on it and instead employ a proper namespace-aware XML parser and serializer to interpret and output the XML documents. 2. Object Attributes This extension adds additional elements to EPP object mappings like the EPP domain name mapping [RFC5731]. Only those new elements are described here. 2.1. Allocation Token The Allocation Token is a simple XML "token" type. The exact format of the Allocation Token is up to server policy. The server MUST have the allocation token for each object to match against the allocation token passed by the client to authorize the allocation of the object. The same element is used for all of the supported EPP transform commands as well as the info response. If an invalid allocation token is passed the server MUST return an EPP error result code of 2201. Gould & Wodjenski Expires November 24, 2016 [Page 3] Internet-Draft allocationToken May 2016 An example element with value of "abc123": abc123 3. EPP Command Mapping A detailed description of the EPP syntax and semantics can be found in the EPP core protocol specification [RFC5730]. 3.1. EPP Query Commands EPP provides three commands to retrieve object information: to determine if an object is known to the server, to retrieve detailed information associated with an object, and to retrieve object transfer status information. 3.1.1. EPP Command This extension defines additional elements to extend the EPP command of an object mapping like [RFC5731]. This extension allow clients to check the availability of an object with an allocation token, as described in Section 2.1. Clients can check if an object can be created using the allocation token. The allocation token is applied to all object names included in the EPP command. Gould & Wodjenski Expires November 24, 2016 [Page 4] Internet-Draft allocationToken May 2016 Example command for the example.tld domain name using the extension with the allocation token of 'abc123': C: C: C: C: C: C: example.tld C: C: C: C: C: abc123 C: C: C: ABC-12345 C: C: If the query was successful, the server replies with an response providing availability status of queried object. Gould & Wodjenski Expires November 24, 2016 [Page 5] Internet-Draft allocationToken May 2016 Example domain response for a command using the extension: S: S: S: S: S: Command completed successfully S: S: S: S: S: example.tld S: Invalid domain-token pair S: S: S: S: S: ABC-DEF-12345 S: 54321-XYZ S: S: S: Gould & Wodjenski Expires November 24, 2016 [Page 6] Internet-Draft allocationToken May 2016 Example command with the extension for the example.tld and example2.tld domain names. Availability of example.tld and example2.tld domain names are based on the allocation token 'abc123': C: C: C: C: C: C: example.tld C: example2.tld C: C: C: C: C: abc123 C: C: C: ABC-DEF-12345 C: C: Gould & Wodjenski Expires November 24, 2016 [Page 7] Internet-Draft allocationToken May 2016 Example domain response for multiple domain names in the command using the extension: S: S: S: S: S: Command completed successfully S: S: S: S: S: example.tld S: Invalid domain-token pair S: S: S: example2.tld S: S: S: S: S: ABC-DEF-12345 S: 54321-XYZ S: S: S: This extension does not add any elements to the EPP response described in the [RFC5730]. 3.1.2. EPP Command This extension defines additional elements to extend the EPP command of an object mapping like [RFC5731]. The EPP command allows a client to request information on an existing object. Authorized clients MAY retrieve the allocation token (Section 2.1) along with the other object information using the element that identifies the extension namespace. The element is an empty element that serves as a marker to the server to return the element, defined in Section 2.1, in the info response. If the client is not authorized to receive the allocation token (Section 2.1), the server MUST return an EPP error result code of 2201. If the client is authorized to receive the Gould & Wodjenski Expires November 24, 2016 [Page 8] Internet-Draft allocationToken May 2016 allocation token (Section 2.1), but there is no allocation token (Section 2.1) associated with the object, the server MUST return an EPP error result code of 2303 object referencing the element. Example command with the allocationToken:info extension for the example.tld domain name: C: C: C: C: C: C: example.tld C: C: C: C: C: C: ABC-12345 C: C: If the query was successful, the server replies with an element, as described in Section 2.1. Gould & Wodjenski Expires November 24, 2016 [Page 9] Internet-Draft allocationToken May 2016 Example domain response using the extension: S: S: S: S: S: Command completed successfully S: S: S: S: example.tld S: EXAMPLE1-REP S: S: jd1234 S: sh8013 S: sh8013 S: ClientX S: ClientY S: 2012-04-03T22:00:00.0Z S: S: 2fooBAR S: S: S: S: S: S: abc123 S: S: S: S: ABC-12345 S: 54321-XYZ S: S: S: 3.1.3. EPP Command This extension does not add any elements to the EPP query command or response described in the [RFC5730]. Gould & Wodjenski Expires November 24, 2016 [Page 10] Internet-Draft allocationToken May 2016 3.2. EPP Transform Commands EPP provides five commands to transform objects: to create an instance of an object, to delete an instance of an object, to extend the validity period of an object, to manage object sponsorship changes, and to change information associated with an object. 3.2.1. EPP Command This extension defines additional elements to extend the EPP command of an object mapping like [RFC5731]. The EPP command provides a transform operation that allows a client to create an object. In addition to the EPP command elements described in an object mapping like [RFC5731], the command MUST contain a child element, as defined in Section 2.1, that identifies the extension namespace for the client to be authorized to create and allocate the object. If the allocation token (Section 2.1) does not match the object's allocation token (Section 2.1), the server MUST return an EPP error result code of 2201.: Gould & Wodjenski Expires November 24, 2016 [Page 11] Internet-Draft allocationToken May 2016 Example command to create a domain object with an allocation token: C: C: C: C: C: C: example.tld C: jd1234 C: sh8013 C: sh8013 C: C: 2fooBAR C: C: C: C: C: C: abc123 C: C: C: ABC-12345 C: C: This extension does not add any elements to the EPP response described in the [RFC5730]. 3.2.2. EPP Command This extension does not add any elements to the EPP command or response described in the [RFC5730]. 3.2.3. EPP Command This extension does not add any elements to the EPP command or response described in the [RFC5730]. 3.2.4. EPP Command This extension defines additional elements to extend the EPP request command of an object mapping like [RFC5731]. Gould & Wodjenski Expires November 24, 2016 [Page 12] Internet-Draft allocationToken May 2016 The EPP request command provides a transform operation that allows a client to request the transfer of an object. In addition to the EPP command elements described in an object mapping like [RFC5731], the command MUST contain a child element, as defined in Section 2.1, that identifies the extension namespace for the client to be authorized to transfer and allocate the object. If the allocation token (Section 2.1) does not match the object's allocation token (Section 2.1), the server MUST return an EPP error result code of 2201.: Example request command to allocate the domain object with the allocation token: C: C: C: C: C: C: example1.tld C: 1 C: C: 2fooBAR C: C: C: C: C: C: abc123 C: C: C: ABC-12345 C: C: This extension does not add any elements to the EPP response described in the [RFC5730]. 3.2.5. EPP Command This extension defines additional elements to extend an extension of an empty EPP command of an object mapping like [RFC5731]. An example of an extension of an empty EPP command is the definition of the restore command within [RFC3915]. Gould & Wodjenski Expires November 24, 2016 [Page 13] Internet-Draft allocationToken May 2016 An extension of an empty EPP command defines a new verb that transforms an object. In addition to the EPP command elements described in an object mapping like [RFC5731], the command MUST contain a child element, as defined in Section 2.1, that identifies the extension namespace for the client to be authorized to allocate the object. If the allocation token (Section 2.1) does not match the object's allocation token (Section 2.1), the server MUST return an EPP error result code of 2201.: Example use an extension of an empty command to release a domain object with an allocation token: C: C: C: C: C: C: example1.tld C: C: C: C: C: C: abc123 C: C: C: ABC-12345-XYZ C: C: This extension does not add any elements to the EPP response described in the [RFC5730]. 4. Formal Syntax One schema is presented here that is the EPP Allocation Token Extension schema. 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. Gould & Wodjenski Expires November 24, 2016 [Page 14] Internet-Draft allocationToken May 2016 4.1. Allocation Token Extension Schema BEGIN Extensible Provisioning Protocol v1.0 Allocation Token Extension. END 5. IANA Considerations 5.1. XML Namespace This document uses URNs to describe XML namespaces and XML schemas conforming to a registry mechanism described in [RFC3688]. The following URI assignment is requested of IANA: URI: ietf:params:xml:ns:allocationToken-1.0 Registrant Contact: See the "Author's Address" section of this document. Gould & Wodjenski Expires November 24, 2016 [Page 15] Internet-Draft allocationToken May 2016 XML: See the "Formal Syntax" section of this document. 5.2. 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: "Allocation Token Extension for the Extensible Provisioning Protocol (EPP)" Document status: Standards Track Reference: (insert reference to RFC version of this document) Registrant Name and Email Address: IESG, TLDs: Any IPR Disclosure: None Status: Active Notes: None 6. Security Considerations The mapping extensions described in this document do not provide any security services beyond those described by EPP [RFC5730] and protocol layers used by EPP. The security considerations described in these other specifications apply to this specification as well. 7. Acknowledgements The authors wish to acknowledge the original concept for this draft and the efforts in the initial versions of this draft by Trung Tran. 8. Normative References [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC3688] Mealling, M., "The IETF XML Registry", BCP 81, RFC 3688, January 2004. [RFC3915] Hollenbeck, S., "Domain Registry Grace Period Mapping for the Extensible Provisioning Protocol (EPP)", RFC 3915, September 2004. Gould & Wodjenski Expires November 24, 2016 [Page 16] Internet-Draft allocationToken May 2016 [RFC5730] Hollenbeck, S., "Extensible Provisioning Protocol (EPP)", STD 69, RFC 5730, August 2009. [RFC5731] Hollenbeck, S., "Extensible Provisioning Protocol (EPP) Domain Name Mapping", STD 69, RFC 5731, August 2009. [RFC7451] Hollenbeck, S., "Extension Registry for the Extensible Provisioning Protocol", RFC 7451, February 2015. Appendix A. Change History A.1. Change from 00 to 01 1. Amended XML Namespace section of IANA Considerations, added EPP Extension Registry section. 2. Moved Change History to the back section as an Appendix. A.2. Change from 01 to 02 1. Ping update. A.3. Change from 02 to 03 1. Ping update. A.4. Change from 03 to 04 1. Updated the authors for the draft. Authors' Addresses James Gould VeriSign, Inc. 12061 Bluemont Way Reston, VA 20190 US Email: jgould@verisign.com URI: http://www.verisigninc.com Gould & Wodjenski Expires November 24, 2016 [Page 17] Internet-Draft allocationToken May 2016 Sharon Wodjenski Neustar 21575 Ridgetop Circle Sterling, VA 20166 US Email: Sharon.Wodjenski@neustar.biz URI: http://www.neustar.biz Gould & Wodjenski Expires November 24, 2016 [Page 18]