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<div dir="ltr"><div>Hi Gerhard,</div><div><br></div><div>I'm copying in Mike Sweet, who generates all the IANA IPP Registry updates for PWG</div><div>(and has some tools for helping with this process). Mike and I are the IETF Designated</div><div>Experts for the IANA IPP Registry.</div><div><br></div><div>Looking at RFC 8011 and its predecessor RFC 2911, it indeed looks like there's a</div><div>missing wrapper of '1setOf' - which is unfortunate, because this would be a change</div><div>that was *not* backward compatible in ipptool scripts for IPP Everywhere Self-Cert.</div><div><br></div><div>Mike - can you shed some light on these two issues?</div><div><br></div><div>Cheers,</div><div>- Ira<br></div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Ira McDonald (Musician / Software Architect)<br>Co-Chair - TCG Trusted Mobility Solutions WG</div><div>Co-Chair - TCG Metadata Access Protocol SG<br></div><div dir="ltr">Chair - Linux Foundation Open Printing WG<br>Secretary - IEEE-ISTO Printer Working Group<br>Co-Chair - IEEE-ISTO PWG Internet Printing Protocol WG<br>IETF Designated Expert - IPP & Printer MIB<br>Blue Roof Music / High North Inc<br><a style="color:rgb(51,51,255)" href="http://sites.google.com/site/blueroofmusic" target="_blank">http://sites.google.com/site/blueroofmusic</a><br><a style="color:rgb(102,0,204)" href="http://sites.google.com/site/highnorthinc" target="_blank">http://sites.google.com/site/highnorthinc</a><br>mailto: <a href="mailto:blueroofmusic@gmail.com" target="_blank">blueroofmusic@gmail.com</a><br>(permanent) PO Box 221 Grand Marais, MI 49839 906-494-2434</div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Apr 16, 2020 at 4:17 PM Gerhard Muth <<a href="mailto:gerhard.muth@gmx.de">gerhard.muth@gmx.de</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div style="overflow-wrap: break-word;"><div style="overflow-wrap: break-word;"><div style="overflow-wrap: break-word;">Dear IPP experts,<div><br></div><div>my own ipp implementation (<a href="https://github.com/gmuth/ipp-client-kotlin" target="_blank">https://github.com/gmuth/ipp-client-kotlin</a>) warned me about spec violations in live ipp connections:</div><div><br></div><div><div>WARN: 'number-up-supported' is not registered as '1setOf'</div><div>WARN: 'printer-resolution-supported' is not registered as '1setOf'</div></div><div><br></div><div>So I looked into it:</div><div><br></div><div>Page 109 of RFC 8011 (pdf)</div><div><img id="gmail-m_625899947711856514184211E38-A8E1-4F9A-921F-E918EC030BFD" src="cid:17184a8e497c537a3491" width="244" height="81"><img id="gmail-m_62589994771185651416E45DBD1-5B07-4DCD-AC6D-E57C7B6984CD" src="cid:17184a8e498831eb4142" width="250" height="98"></div><div><br></div><div><a href="https://www.iana.org/assignments/ipp-registrations/ipp-registrations.xhtml#ipp-registrations-2" target="_blank">https://www.iana.org/assignments/ipp-registrations/ipp-registrations.xhtml#ipp-registrations-2</a> says:</div><div><br></div><div><img id="gmail-m_625899947711856514149AD18CA-D838-4F84-ADFE-E06071ED44E7" src="cid:17184a8e498ebf7f5303" width="640" height="25"></div><div><img id="gmail-m_62589994771185651412A1B6B70-84F0-4B44-AA2D-1E37C8681103" src="cid:17184a8e49a886784744" width="640" height="25"></div><div><br></div><div>For both attributes „1setOf“ is missing.</div><div><br></div><div>If this is a valid issue could you please forward a request for correction to the iana organisation?</div><div><br></div><div>My ipp validation code is based on the iana csv file</div><div><a href="https://github.com/gmuth/ipp-client-kotlin/blob/master/src/main/kotlin/de/gmuth/ipp/iana/IppRegistrationsSection2.kt" target="_blank">https://github.com/gmuth/ipp-client-kotlin/blob/master/src/main/kotlin/de/gmuth/ipp/iana/IppRegistrationsSection2.kt</a></div><div><br></div><div>Best regards,</div><div>Gerhard</div><div><br></div></div></div></div></blockquote></div>