Network Working Group                                          A. Newton
Internet-Draft                                            VeriSign, Inc.
Expires: August 20, 2002                               February 19, 2002


                      IRIS Address Registry Schema
                       draft-newton-iris-areg-00

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
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   Internet-Drafts.

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   at any time. It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

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   http://www.ietf.org/ietf/1id-abstracts.txt.

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   http://www.ietf.org/shadow.html.

   This Internet-Draft will expire on August 20, 2002.

Copyright Notice

   Copyright (C) The Internet Society (2002). All Rights Reserved.

Abstract

   This document describes an IRIS registry namespace and schema for
   registered Internet address information.  The schema extends the
   necessary query and result operations of IRIS
   (draft-newton-iris-00.txt) to provide the functional information
   service needs for syntaxes and results used by Internet address
   registries. 









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Table of Contents

   1.    Introduction . . . . . . . . . . . . . . . . . . . . . . . .  3
   2.    Document Terminology . . . . . . . . . . . . . . . . . . . .  4
   3.    Schema Description . . . . . . . . . . . . . . . . . . . . .  5
   3.1   Query Derivatives  . . . . . . . . . . . . . . . . . . . . .  5
   3.1.1 <lookupContact> Query  . . . . . . . . . . . . . . . . . . .  5
   3.1.2 <findContacts> Query . . . . . . . . . . . . . . . . . . . .  5
   3.1.3 <lookupHost> Query . . . . . . . . . . . . . . . . . . . . .  5
   3.1.4 <lookupNetwork> Query  . . . . . . . . . . . . . . . . . . .  5
   3.1.5 <lookupAutonomousSystem> Query . . . . . . . . . . . . . . .  6
   3.2   Result Derivatives . . . . . . . . . . . . . . . . . . . . .  6
   3.2.1 <hostInfo> Result  . . . . . . . . . . . . . . . . . . . . .  6
   3.2.2 <networkInfo> Result . . . . . . . . . . . . . . . . . . . .  6
   3.2.3 <autonomousSystemInfo> Result  . . . . . . . . . . . . . . .  6
   3.2.4 <contactInfo> Result . . . . . . . . . . . . . . . . . . . .  7
   3.2.5 <contacts> Result  . . . . . . . . . . . . . . . . . . . . .  7
   3.3   Global Types . . . . . . . . . . . . . . . . . . . . . . . .  7
   3.4   Support for <iris:lookupEntity>  . . . . . . . . . . . . . .  7
   4.    Formal XML Syntax  . . . . . . . . . . . . . . . . . . . . .  9
   5.    Internationalization Considerations  . . . . . . . . . . . . 17
   6.    IANA Considerations  . . . . . . . . . . . . . . . . . . . . 18
   7.    Security Considerations  . . . . . . . . . . . . . . . . . . 19
         References . . . . . . . . . . . . . . . . . . . . . . . . . 20
         Author's Address . . . . . . . . . . . . . . . . . . . . . . 20
   A.    An Example Request and Response  . . . . . . . . . . . . . . 21
   B.    Outstanding Issues . . . . . . . . . . . . . . . . . . . . . 23
         Full Copyright Statement . . . . . . . . . . . . . . . . . . 24























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1. Introduction

   This document describes an IRIS namespace for Internet address
   registries using an XML Schema[4] derived from and using the IRIS[8]
   schema.  The query and result types outlined in this document are
   based on the functional requirements described in [9]. 

   The schema given is this document is specified using the Extensible
   Markup Language (XML) 1.0 as described in [1], XML Schema notation
   as described in [3] and [4], and XML Namespaces as described in [2]. 

   It is important to note that XML is case sensitive.  XML
   specifications and examples provided in this document MUST be
   interpreted in the exact character case presented to develop a
   conforming implementation. 




































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2. Document Terminology

   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[7]. 














































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3. Schema Description

   The schema for this registry namespace defines no
   <complexAuthentication> derivative.  Applications of this namespace
   should rely on either the IRIS transport or <simpleAuthentication>
   for client authentication. 

   IRIS requires the derivation of both query and result elements by a
   registry namespace.  These descriptions follow. 

3.1 Query Derivatives

3.1.1 <lookupContact> Query

   This is a simple named look up of a single contact. The contact is
   specified by the <handle> element. 

3.1.2 <findContacts> Query

   <findContacts> searches for contacts given search constraints.  The
   <beginsWith> element MUST be present and specifies the beginning of
   the common name of the contact. The <endsWith> element is OPTIONAL
   and MUST contain the end of the common name of the contact. 

   The <type> element is OPTIONAL and SHOULD contain a recognized type
   of contact.  Typically the values for this element denote
   multiplicity of the contact, such as "organization" or "person". 

3.1.3 <lookupHost> Query

   This is a simple named look up of a name server host. The host MUST
   be specified by one of the following elements: 

   o  <handle> - a registry assigned unique identifier. 

   o  <hostName> - the fully-qualified name of the host. 

   o  <ipV4Address> - the IP version 4 address of the host. 

   o  <ipV6Address> - the IP version 6 address of the host. 

3.1.4 <lookupNetwork> Query

   This is a simple named look up of an IP network. The network MUST be
   specified by one of the following elements: 

   o  <ipV4Address> - the IP version 4 network address of the network. 

   o  <ipV6Address> - the IP version 6 network address of the network. 


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3.1.5 <lookupAutonomousSystem> Query

   This is a simple named look up of an autonomous system. The system
   MUST be specified by one of the following elements: 

   o  <handle> - a registry assigned unique identifier. 

   o  <number> - the autonomous system number. 

3.2 Result Derivatives

3.2.1 <hostInfo> Result

   The <hostInfo> element is the expected result of a <lookupHost>
   query.  It contains elements for the fully qualified host name of
   the host, the IP address of the host, and a reference to the host
   contact. 

   The address elements contain the IP address of the name server,
   either IP v4 or IP v6, and an OPTIONAL reference to the network
   which contains the given address. 

3.2.2 <networkInfo> Result

   The <networkInfo> element is the expected result of a
   <lookupNetwork> query.  It has the following child elements: 

   o  <holderReference> is an entity reference to the holder of the
      network.  This element is OPTIONAL. 

   o  <contactReference> is an entity reference to the technical
      contact of the network.  The element is OPTIONAL. 

   o  Either <ipV4> or <ipV6> MUST be present.  Each element contains
      children representing the start and end of the network in the
      appropriate format. 

3.2.3 <autonomousSystemInfo> Result

   The <autonomousSystemInfo> element is the expected result of a
   <lookupAutonomousSystem> query.  It has the following children: 

   o  <holderReference> is an entity reference to the holder of the
      autonomous system.  This is an OPTIONAL element. 

   o  <contactReference> is an entity reference to the technical
      contact of the autonomous system.  This is an OPTIONAL element. 

   o  <handle> is a registry assigned unique identifier.  This element


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      MUST be present. 

   o  <startNumber> is a positive integer representing the starting
      number of the autonomous system.  This element MUST be present. 

   o  <endNumber> is a positive integer representing the final number
      of the autonomous system.  This element MUST be present. 

3.2.4 <contactInfo> Result

   The <contactInfo> element is the expected result of a
   <lookupContact> query.  The children that MUST be present are
   <handle>, containing a registry assigned unique identifier, and
   <commonName>, which holds the common name of the contact.  The other
   children of this element are OPTIONAL and contain Internet, phone,
   and postal address information. 

3.2.5 <contacts> Result

   The <contacts> element is the expected result of a <findContacts>
   query.  This element MAY have no children, if it is not empty the
   children MUST be <contactInfo> elements. 

3.3 Global Types

   Some of the global types defined by the schema specified in this
   document are expressed using regular expressions.  The regular
   expressions used for these definitions do not fully represent every
   allowable syntax for the intended type, but meet a standard of
   reasonableness for the expression of the types. 

3.4 Support for <iris:lookupEntity>

   The following types of named entities are recognized by the
   <lookupEntity> query of IRIS: 

   o  handles - unique identifiers assigned the IP address registry. 
      These handles are defined to have their type as the first part of
      the handle. A query with a type "host" will yield a <hostInfo>
      result. A query with a type "net" will yield a <networkInfo>
      result. A query with a type "as" will yield a
      <autonomousSystemInfo> result. The other types, "org", "person",
      and "role" will yield a <contactInfo> result. 

   o  host names - the fully qualified host names of nameservers. 
      Queries with these names will yield a <hostInfo> result.  A host
      may be multi-homed and therefore known by many host names. 

   o  IP addresses - the address, either IP v4 or IP v6, of a


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      nameserver or a network.  Because both name servers and networks
      are known by IP addresses, an entity lookup using an address will
      result in either <hostInfo> or <networkInfo> results.  In rare
      cases where this may present a problem, a <hostOrNetwork> result
      may be returned.  The children of this element are entity
      references, one to a name server and the other to a network. 

   o  autonomous system numbers - yields a result of
      <autonomousSystemInfo>. 










































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4. Formal XML Syntax

   This IP address registry is specified in the XML Schema notation.
   The formal syntax presented here is a complete schema representation
   suitable for automated validation of an XML instance when combined
   with the formal schema syntax of IRIS.  Due to document formatting
   restrictions, readers should note that the regular expressions
   expressed in this schema DO NOT contain whitespace within the quotes
   containing the regular expression. 


   <?xml version="1.0"?>
   <schema xmlns="http://www.w3.org/2001/XMLSchema"
           xmlns:areg="urn:iana:xmlns:areg1"
           xmlns:iris="urn:iana:xmlns:iris1"
           targetNamespace="urn:iana:xmlns:areg1"
           elementFormDefault="qualified" >

     <annotation>
       <documentation>
         IP address registry schema
         derived from IRIS schema
       </documentation>
     </annotation>

     <!--             -->
     <!-- Query types -->
     <!--             -->

     <complexType name="lookupContactType">
       <complexContent>
         <extension base="iris:queryType">
           <sequence>
             <element name="handle"
               type="areg:handleType" />
           </sequence>
         </extension>
       </complexContent>
     </complexType>

     <element name="lookupContact"
       type="areg:lookupContactType"
       substitutionGroup="iris:query" />

     <complexType name="findContactsType">
       <complexContent>
         <extension base="iris:queryType">
           <sequence>
             <element name="beginsWith"


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               minOccurs="1" maxOccurs="1">
               <simpleType>
                 <restriction base="token">
                   <minLength value="3"/>
                 </restriction>
               </simpleType>
             </element>
             <element name="endsWith"
               minOccurs="0" maxOccurs="1" >
               <simpleType>
                 <restriction base="token">
                   <minLength value="2"/>
                 </restriction>
               </simpleType>
             </element>
             <element name="type"
               type="token"
               minOccurs="0" maxOccurs="1" />
           </sequence>
         </extension>
       </complexContent>
     </complexType>

     <element name="findContacts"
       type="areg:findContactsType"
       substitutionGroup="iris:query" />

     <complexType name="lookupHostType">
       <complexContent>
         <extension base="iris:queryType">
           <choice>
             <element name="handle"
               type="areg:handleType" />
             <element name="hostName"
               type="areg:domainNameType" />
             <element name="ipV4Address"
               type="areg:dotQuadIPv4Type" />
             <element name="ipV6Address"
               type="areg:textIPv6AddressType" />
           </choice>
         </extension>
       </complexContent>
     </complexType>

     <element name="lookupHost"
       type="areg:lookupHostType"
       substitutionGroup="iris:query" />

     <complexType name="lookupNetworkType">


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       <complexContent>
         <extension base="iris:queryType">
           <choice>
             <element name="ipV4Address"
               type="areg:dotQuadIPv4Type" />
             <element name="ipV6Address"
               type="areg:textIPv6AddressType" />
           </choice>
         </extension>
       </complexContent>
     </complexType>

     <element name="lookupNetwork"
       type="areg:lookupNetworkType"
       substitutionGroup="iris:query" />

     <complexType name="lookupAutonomousSystemType">
       <complexContent>
         <extension base="iris:queryType">
           <choice>
             <element name="number"
               type="positiveInteger" />
             <element name="handle"
               type="areg:handleType" />
           </choice>
         </extension>
       </complexContent>
     </complexType>

     <element name="lookupAutonomousSystem"
       type="areg:lookupAutonomousSystemType"
       substitutionGroup="iris:query"      />

     <!--              -->
     <!-- Result types -->
     <!--              -->

     <complexType name="hostInfoType">
       <complexContent>
         <extension base="iris:resultType">
           <sequence>
             <element name="hostName"
               type="areg:domainNameType" />
             <choice
               minOccurs="1" maxOccurs="unbounded" >
               <element name="ipV4">
                 <complexType>
                   <sequence>
                     <element name="ipV4Address"


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                       type="areg:dotQuadIPv4Type" />
                     <element name="networkReference"
                       type="anyURI"
                       minOccurs="0" maxOccurs="1" />
                   </sequence>
                 </complexType>
               </element>
               <element name="ipV6">
                 <complexType>
                   <sequence>
                     <element name="ipV6Address"
                       type="areg:textIPv6AddressType" />
                     <element name="networkReference"
                       type="anyURI"
                       minOccurs="0" maxOccurs="1" />
                   </sequence>
                 </complexType>
               </element>
             </choice>
             <element name="contactReference"
               type="anyURI" />
           </sequence>
         </extension>
       </complexContent>
     </complexType>

     <element name="hostInfo"
       type="areg:hostInfoType"
       substitutionGroup="iris:result" />

     <complexType name="networkInfoType">
       <complexContent>
         <extension base="iris:resultType">
           <sequence>
             <element name="holderReference"
               type="anyURI"
               minOccurs="0" maxOccurs="1" />
             <element name="contactReference"
               type="anyURI"
               minOccurs="0" maxOccurs="1" />
             <element name="handle"
               type="areg:handleType" />
             <choice>
               <element name="ipV4">
                 <complexType>
                   <sequence>
                     <element name="startIPv4"
                       type="areg:dotQuadIPv4Type" />
                     <element name="endIPv4"


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                       type="areg:dotQuadIPv4Type" />
                   </sequence>
                 </complexType>
               </element>
               <element name="ipV6">
                 <complexType>
                   <sequence>
                     <element name="startIPv6"
                       type="areg:textIPv6AddressType" />
                     <element name="endIPv6"
                       type="areg:textIPv6AddressType" />
                   </sequence>
                 </complexType>
               </element>
             </choice>
           </sequence>
         </extension>
       </complexContent>
     </complexType>

     <element name="networkInfo"
       type="areg:networkInfoType"
       substitutionGroup="iris:result" />

     <complexType name="hostOrNetworkType">
       <complexContent>
         <extension base="iris:resultType">
           <sequence>
             <element name="nameServerReference"
               type="anyURI" />
             <element name="networkReference"
               type="anyURI" />
           </sequence>
         </extension>
       </complexContent>
     </complexType>

     <element name="hostOrNetwork"
       type="areg:hostOrNetworkType"
       substitutionGroup="iris:result" />

     <complexType name="autonomousSystemInfoType">
       <complexContent>
         <extension base="iris:resultType">
           <sequence>
             <element name="holderReference"
               type="anyURI"
               minOccurs="0" maxOccurs="1" />
             <element name="contactReference"


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               type="anyURI"
               minOccurs="0" maxOccurs="1" />
             <element name="handle"
               type="areg:handleType" />
             <element name="startNumber"
               type="positiveInteger" />
             <element name="endNumber"
               type="positiveInteger" />
           </sequence>
         </extension>
       </complexContent>
     </complexType>

     <element name="autonomousSystemInfo"
       type="areg:autonomousSystemInfoType"
       substitutionGroup="iris:result" />

     <complexType name="contactInfoType">
       <complexContent>
         <extension base="iris:resultType">
           <sequence>
             <element name="handle"
               type="areg:handleType"
               minOccurs="0" maxOccurs="1" />
             <element name="commonName"
               type="token" />
             <element name="organization"
               type="normalizedString"
               minOccurs="0" maxOccurs="1" />
             <element name="e-mail"
               type="normalizedString"
               minOccurs="0" maxOccurs="1" />
             <element name="address"
               type="string"
               minOccurs="0" maxOccurs="1" />
             <element name="city"
               type="string"
               minOccurs="0" maxOccurs="1" />
             <element name="region"
               type="string"
               minOccurs="0" maxOccurs="1" />
             <element name="postalCode"
               type="normalizedString"
               minOccurs="0" maxOccurs="1" />
             <element name="country"
               type="token"
               minOccurs="0" maxOccurs="1" />
             <element name="phone"
               type="normalizedString"


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               minOccurs="0" maxOccurs="1" />
             <element name="fax"
               type="normalizedString"
               minOccurs="0" maxOccurs="1" />
           </sequence>
         </extension>
       </complexContent>
     </complexType>

     <element name="contactInfo"
       type="areg:contactInfoType"
       substitutionGroup="iris:result" />

     <complexType name="contactsType">
       <complexContent>
         <extension base="iris:resultType">
           <sequence>
             <element name="contactInfo"
               type="areg:contactInfoType"
               minOccurs="0" maxOccurs="unbounded" />
           </sequence>
         </extension>
       </complexContent>
     </complexType>

     <element name="contacts"
       type="areg:contactsType"
       substitutionGroup="iris:result" />

     <!--              -->
     <!-- Global types -->
     <!--              -->

     <simpleType name="handleType">
       <restriction base="token">
         <pattern value="(host|org|person|role|net|as):[A-zA-Z0-9-]*" />
         <maxLength value="255" />
       </restriction>
     </simpleType>

     <simpleType name="dotQuadIPv4Type">
       <restriction base="string">
         <pattern value="([\d]{1,3}.){3}[\d]{1,3}" />
         <minLength value="7" />
         <maxLength value="15" />
       </restriction>
     </simpleType>

     <!-- does not support '::' -->


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     <simpleType name="textIPv6AddressType">
       <restriction base="string">
         <pattern value="(([\dA-Fa-f]{1,4}:){7}[\dA-Fa-f]{1,4})(:([\d]{1,3}.){3}[\d]{1,3})?"/>
         <minLength value="16"/>
         <maxLength value="39"/>
       </restriction>
     </simpleType>

     <simpleType name="domainNameType">
       <restriction base="token">
         <pattern
           value="([a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9]\.)*([a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])?" />
         <maxLength value="255" />
       </restriction>
     </simpleType>

   </schema>


































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5. Internationalization Considerations

   The defining schema for this registry namespace is represented in
   XML, which provides native support for encoding information using
   the double-byte Unicode character set and its more compact
   representations including UTF-8.  Compliant XML processors are
   required to understand both UTF-8 and raw Unicode character sets;
   XML also includes a provision for identifying other character sets
   through use of an "encoding" attribute in an <?xml?> processing
   instruction. The complete list of character set encoding identifiers
   is maintained by IANA and is described in [10] and [5]. 








































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6. IANA Considerations

   XML schemas require a URI for unique identification.  Schemas MUST
   be registered to ensure URI uniqueness, but the IETF does not
   currently have a recommended repository for the registration of XML
   schemas. This document uses URNs to describe XML namespaces and XML
   schemas. IANA SHOULD maintain a registry of XML namespace and schema
   URI assignments.  Per policies described in [6], URI assignment
   requests SHOULD be reviewed by a designated expert, and values
   SHOULD be assigned only as a result of standards action taken by the
   IESG. 








































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7. Security Considerations

   The schema given in this document describes no
   <complexAuthentication> derivatives nor specifies any authentication
   mechanism beyond that specified by [8]. 














































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References

   [1]  World Wide Web Consortium, "Extensible Markup Language (XML)
        1.0", W3C XML, February 1998, 
        <http://www.w3.org/TR/1998/REC-xml-19980210>.

   [2]  World Wide Web Consortium, "Namespaces in XML", W3C XML
        Namespaces, January 1999, 
        <http://www.w3.org/TR/1999/REC-xml-names-19990114>.

   [3]  World Wide Web Consortium, "XML Schema Part 2: Datatypes", W3C
        XML Schema, October 2000, 
        <http://www.w3.org/TR/2001/REC-xmlschema-2-20010502/>.

   [4]  World Wide Web Consortium, "XML Schema Part 1: Structures", W3C
        XML Schema, October 2000, 
        <http://www.w3.org/TR/2001/REC-xmlschema-1-20010502/>.

   [5]  Reynolds, J. and J. Postel, "ASSIGNED NUMBERS", RFC 1700, STD
        2, October 1994.

   [6]  Narten, T. and H.T. Alvestrand, "Guidelines for Writing an IANA
        Considerations Section in RFCs", RFC 2434, BCP 26, October 1998.

   [7]  Bradner, S., "Key words for use in RFCs to Indicate Requirement
        Levels", RFC 2119, BCP 14, March 1997.

   [8]  Newton, A, "Internet Registry Information Service", Internet
        Draft, a work in-progress., February 2002.

   [9]  Newton, A and S Kerr, "Internet Registry Directory
        Requirements", Internet Draft, a work in-progress., January
        2002.

   [10]  <ftp://ftp.isi.edu/in-notes/iana/assignments/character-sets>


Author's Address

   Andrew L. Newton
   VeriSign, Inc.
   21345 Ridgetop Circle
   Sterling, VA  20166
   USA

   Phone: +1 703 948 3382
   EMail: anewton@verisignlabs.com
   URI:   http://www.research.netsol.com/



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Appendix A. An Example Request and Response

   The following is an example of an IRIS request and response using
   this registry namespace. 

    This XML instance is a request to find contacts. 

   <?xml version="1.0"?>
   <iris xmlns="urn:iana:xmlns:iris1"
         xmlns:iris="urn:iana:xmlns:iris1"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="urn:iana:xmlns:iris1 iris.xsd" >

     <request>
       <registrySearch>
         <areg:findContacts
           xmlns:areg="urn:iana:xmlns:areg1"
           xsi:schemaLocation="urn:iana:xmlns:areg1 areg.xsd" >
           <areg:beginsWith>
             RIPE
           </areg:beginsWith>
           <areg:type>
             organization
           </areg:type>
         </areg:findContacts>
       </registrySearch>
     </request>

   </iris>

    This XML instance is a response from Figure 2. 

   <?xml version="1.0"?>
   <iris xmlns="urn:iana:xmlns:iris1"
         xmlns:iris="urn:iana:xmlns:iris1"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="urn:iana:xmlns:iris1 iris.xsd" >

     <response>
       <registryResult>
         <areg:contacts
           xmlns="urn:iana:xmlns:areg1"
           xmlns:areg="urn:iana:xmlns:areg1"
           xsi:schemaLocation="urn:iana:xmlns:areg1 areg.xsd" >
           <contactInfo>
             <handle>org:RIPE-NCC-ARIN</handle>
             <commonName>
               RIPE Network Coordination Centre
             </commonName>


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             <organization>
               Reseaux IP European Network
               Co-ordination Centre
             </organization>
             <e-mail>
               nicdb@RIPE.NET
             </e-mail>
             <address>
               Singel 258
             </address>
             <city>
               Amsterdam
             </city>
             <postalCode>
               NL-1016 AB
             </postalCode>
             <country>
               NL
             </country>
             <phone>
               +31 20 535 4444
             </phone>
           </contactInfo>
         </areg:contacts>
       </registryResult>
     </response>

   </iris>























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Appendix B. Outstanding Issues

   The following items will need further investigation for future
   versions of this document.

   o  According to draft-newton-ir-dir-requirements.txt, there needs to
      be a query to find the network for which a contact is associated.

   o  Some of the terminology between the documents needs to be synced.
      For instance, the word "nameserver" should be used instead of
      "host".








































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Full Copyright Statement

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   The limited permissions granted above are perpetual and will not be
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   This document and the information contained herein is provided on an
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Acknowledgement

   Funding for the RFC editor function is currently provided by the
   Internet Society.



















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