[Ecrit] Objet : [Technical Errata Reported] RFC8147 (7752)

[Guy Caron <[e-mail]>]

Any reason as to why RFC 8147 did not request the registration of its XML schema in the https://www.iana.org/assignments/xml-registry/xml-registry.xhtml" rel="nofollow">IETF XML Registry maintained by IANA as per RFC 3688, while it did for the namespace?

 

Thanks,

 

Guy

 

De : Randall Gellens
Envoyé le :9 janvier 2024 11:13
À : RFC Errata System; "Murray S. Kucherawy"
Cc : [e-mail]; [e-mail]; [e-mail]; [e-mail]; [e-mail]
Objet :Re: [Ecrit] [Technical Errata Reported] RFC8147 (7752)

 

This looks correct to me. I'd suggest, just for convenience of the reader, adding a summary of the changes above the full changes, as follows:

Replace all four occurrences of:

<xs:any namespace="##any" processContents="lax"

with:

<xs:any namespace="##other" processContents="lax"

I do not have a login at rfc-editor.org to change the state. Perhaps Murray or the RFC Editor can accept the errata and add the summary?

--Randall

On 9 Jan 2024, at 7:13, RFC Errata System wrote:

The following errata report has been submitted for RFC8147,
"Next-Generation Pan-European eCall".

You may review the report below and at:
https://www.rfc-editor.org/errata/eid7752" rel="nofollow">https://www.rfc-editor.org/errata/eid7752

Type: Technical
Reported by: Andreas Wehrmann [e-mail]

Section: 13

Original Text

<?xml version="1.0"?>

<xs:schema
targetNamespace="urn:ietf:params:xml:ns:EmergencyCallData:control"
xmlns:xs="http://www.w3.org/2001/XMLSchema" rel="nofollow">http://www.w3.org/2001/XMLSchema"
xmlns:pi="urn:ietf:params:xml:ns:EmergencyCallData:control"
xmlns:xml="http://www.w3.org/XML/1998/namespace" rel="nofollow">http://www.w3.org/XML/1998/namespace"
elementFormDefault="qualified"
attributeFormDefault="unqualified">

<xs:import namespace="http://www.w3.org/XML/1998/namespace"/>

<xs:element name="EmergencyCallData.Control"

    type="pi:controlType"/>

<xs:complexType name="controlType">

    <xs:complexContent>

        <xs:restriction base="xs:anyType">

            <xs:choice>

                <xs:element name="capabilities"

                    type="pi:capabilitiesType"/>

                <xs:element name="request" type="pi:requestType"/>

                <xs:element name="ack" type="pi:ackType"/>

                <xs:any namespace="##any" processContents="lax"

                    minOccurs="0"

                    maxOccurs="unbounded"/>

            </xs:choice>

            <xs:anyAttribute/>

        </xs:restriction>

    </xs:complexContent>

</xs:complexType>

<xs:complexType name="ackType">

    <xs:complexContent>

        <xs:restriction base="xs:anyType">

            <xs:sequence minOccurs="1" maxOccurs="unbounded">

                <xs:element name="actionResult" minOccurs="0"

                    maxOccurs="unbounded">

                    <xs:complexType>

                        <xs:attribute name="action"

                            type="xs:token"

                            use="required"/>

                        <xs:attribute name="success"

                            type="xs:boolean"

                            use="required"/>

                        <xs:attribute name="reason"

                            type="xs:token">

                            <xs:annotation>

                                <xs:documentation>

                                    conditionally mandatory

                                    when @success="false"

                                    to indicate reason code

                                    for a failure

                                </xs:documentation>

                            </xs:annotation>

                        </xs:attribute>

                        <xs:attribute name="details"

                            type="xs:string"/>

                        <xs:anyAttribute

                            processContents="skip"/>

                    </xs:complexType>

                </xs:element>

                <xs:any namespace="##any" processContents="lax"

                    minOccurs="0"

                    maxOccurs="unbounded"/>

            </xs:sequence>

            <xs:attribute name="ref"

                type="xs:anyURI"

                use="required"/>

            <xs:attribute name="received"

                type="xs:boolean"/>

            <xs:anyAttribute/>

        </xs:restriction>

    </xs:complexContent>

</xs:complexType>

<xs:complexType name="capabilitiesType">

    <xs:complexContent>

        <xs:restriction base="xs:anyType">

            <xs:sequence minOccurs="1" maxOccurs="unbounded">

                <xs:element name="request"

                    type="pi:requestType"

                    minOccurs="1"

                    maxOccurs="unbounded"/>

                <xs:any namespace="##any" processContents="lax"

                    minOccurs="0"

                    maxOccurs="unbounded"/>

            </xs:sequence>

            <xs:anyAttribute/>

        </xs:restriction>

    </xs:complexContent>

</xs:complexType>

<xs:complexType name="requestType">

    <xs:complexContent>

        <xs:restriction base="xs:anyType">

            <xs:choice minOccurs="1" maxOccurs="unbounded">

                <xs:element name="text" minOccurs="0"

                    maxOccurs="unbounded">

                    <xs:complexType>

                        <xs:simpleContent>

                            <xs:extension base="xs:string">

                                <xs:anyAttribute

                                    namespace="##any"

                                    processContents="skip"/>

                            </xs:extension>

                        </xs:simpleContent>

                    </xs:complexType>

                </xs:element>

                <xs:any namespace="##any" processContents="lax"

                    minOccurs="0"

                    maxOccurs="unbounded"/>

            </xs:choice>

            <xs:attribute name="action" type="xs:token"

                use="required"/>

            <xs:attribute name="int-id" type="xs:unsignedInt"/>

            <xs:attribute name="persistence"

                type="xs:duration"/>

            <xs:attribute name="datatype" type="xs:token"/>

            <xs:attribute name="supported-values"

                type="xs:string"/>

            <xs:attribute name="element-id" type="xs:token"/>

            <xs:attribute name="requested-state"

                type="xs:token"/>

            <xs:anyAttribute/>

        </xs:restriction>

    </xs:complexContent>

</xs:complexType>

</xs:schema>

Corrected Text

<?xml version="1.0"?>

<xs:schema
targetNamespace="urn:ietf:params:xml:ns:EmergencyCallData:control"
xmlns:xs="http://www.w3.org/2001/XMLSchema" rel="nofollow">http://www.w3.org/2001/XMLSchema"
xmlns:pi="urn:ietf:params:xml:ns:EmergencyCallData:control"
xmlns:xml="http://www.w3.org/XML/1998/namespace" rel="nofollow">http://www.w3.org/XML/1998/namespace"
elementFormDefault="qualified"
attributeFormDefault="unqualified">

<xs:import namespace="http://www.w3.org/XML/1998/namespace"/>

<xs:element name="EmergencyCallData.Control"

    type="pi:controlType"/>

<xs:complexType name="controlType">

    <xs:complexContent>

        <xs:restriction base="xs:anyType">

            <xs:choice>

                <xs:element name="capabilities"

                    type="pi:capabilitiesType"/>

                <xs:element name="request" type="pi:requestType"/>

                <xs:element name="ack" type="pi:ackType"/>

                <xs:any namespace="##other" processContents="lax"

                    minOccurs="0"

                    maxOccurs="unbounded"/>

            </xs:choice>

            <xs:anyAttribute/>

        </xs:restriction>

    </xs:complexContent>

</xs:complexType>

<xs:complexType name="ackType">

    <xs:complexContent>

        <xs:restriction base="xs:anyType">

            <xs:sequence minOccurs="1" maxOccurs="unbounded">

                <xs:element name="actionResult" minOccurs="0"

                    maxOccurs="unbounded">

                    <xs:complexType>

                        <xs:attribute name="action"

                            type="xs:token"

                            use="required"/>

                        <xs:attribute name="success"

                            type="xs:boolean"

                            use="required"/>

                        <xs:attribute name="reason"

                            type="xs:token">

                            <xs:annotation>

                                <xs:documentation>

                                    conditionally mandatory

                                    when @success="false"

                                    to indicate reason code

                                    for a failure

                                </xs:documentation>

                            </xs:annotation>

                        </xs:attribute>

                        <xs:attribute name="details"

                            type="xs:string"/>

                        <xs:anyAttribute

                            processContents="skip"/>

                    </xs:complexType>

                </xs:element>

                <xs:any namespace="##other" processContents="lax"

                    minOccurs="0"

                    maxOccurs="unbounded"/>

            </xs:sequence>

            <xs:attribute name="ref"

                type="xs:anyURI"

                use="required"/>

            <xs:attribute name="received"

                type="xs:boolean"/>

            <xs:anyAttribute/>

        </xs:restriction>

    </xs:complexContent>

</xs:complexType>

<xs:complexType name="capabilitiesType">

    <xs:complexContent>

        <xs:restriction base="xs:anyType">

            <xs:sequence minOccurs="1" maxOccurs="unbounded">

                <xs:element name="request"

                    type="pi:requestType"

                    minOccurs="1"

                    maxOccurs="unbounded"/>

                <xs:any namespace="##other" processContents="lax"

                    minOccurs="0"

                    maxOccurs="unbounded"/>

            </xs:sequence>

            <xs:anyAttribute/>

        </xs:restriction>

    </xs:complexContent>

</xs:complexType>

<xs:complexType name="requestType">

    <xs:complexContent>

        <xs:restriction base="xs:anyType">

            <xs:choice minOccurs="1" maxOccurs="unbounded">

                <xs:element name="text" minOccurs="0"

                    maxOccurs="unbounded">

                    <xs:complexType>

                        <xs:simpleContent>

                            <xs:extension base="xs:string">

                                <xs:anyAttribute

                                    namespace="##any"

                                    processContents="skip"/>

                            </xs:extension>

                        </xs:simpleContent>

                    </xs:complexType>

                </xs:element>

                <xs:any namespace="##other" processContents="lax"

                    minOccurs="0"

                    maxOccurs="unbounded"/>

            </xs:choice>

            <xs:attribute name="action" type="xs:token"

                use="required"/>

            <xs:attribute name="int-id" type="xs:unsignedInt"/>

            <xs:attribute name="persistence"

                type="xs:duration"/>

            <xs:attribute name="datatype" type="xs:token"/>

            <xs:attribute name="supported-values"

                type="xs:string"/>

            <xs:attribute name="element-id" type="xs:token"/>

            <xs:attribute name="requested-state"

                type="xs:token"/>

            <xs:anyAttribute/>

        </xs:restriction>

    </xs:complexContent>

</xs:complexType>

</xs:schema>

Notes

The complex types "controlType", "ackType", "capabilitiesType" and "requestType" define extension points by using xs:any with namespace ##any. This violates the "Unique Particle Attribution" rule for XSD 1.0 (see: https://www.w3.org/wiki/UniqueParticleAttribution" rel="nofollow">https://www.w3.org/wiki/UniqueParticleAttribution) and shows up as an error in some tools.
I suggest changing the namespace to ##other like it's done in other schemas (for example, RFC7865 defines extension points in this way: https://datatracker.ietf.org/doc/html/rfc7865#section-9" rel="nofollow">https://datatracker.ietf.org/doc/html/rfc7865#section-9 ).

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RFC8147 (draft-ietf-ecrit-ecall-27)

Title : Next-Generation Pan-European eCall
Publication Date : May 2017
Author(s) : R. Gellens, H. Tschofenig
Category : PROPOSED STANDARD
Source : Emergency Context Resolution with Internet Technologies
Area : Applications and Real-Time
Stream : IETF
Verifying Party : IESG