Port range constraints re-written to eliminate the error documented in #2023 and oscal-cli/#290

[iMichaela]

Correcting the port-range constraints to properly implement the intent for the defined constraints.

Committer Notes

Current port-range constraints are generating warnings that port-range start or end must be defined even when they are.

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Changes to Core Features:

• Have you added an explanation of what your changes do and why you'd like us to include them?
• Have you written new tests for your core changes, as applicable?
  The following schematron file can be used. If deemed necessary, it can be uploaded to the repo. Example sip file can also be uploaded to oscal-content repo.

<?xml version="1.0" encoding="UTF-8"?>
<sch:schema xmlns:sch="http://purl.oclc.org/dsdl/schematron" queryBinding="xslt2"
  xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
  xmlns:sqf="http://www.schematron-quickfix.com/validator/process"> 
  <sch:ns prefix="o" uri="http://csrc.nist.gov/ns/oscal/1.0"/>
     
  <sch:pattern id="proposed">      
     <!-- Schema constrains to non-negative integer so we do not do that here. -->
     <sch:rule context="o:port-range">
        <sch:assert test="exists(@start)" id="start-port-does-not-exist">id port-range-has-start</sch:assert>
        <sch:assert test="exists(@end)" id="end-port-does-not-exist">id port-range-has-end</sch:assert>
        <sch:assert test="not(@start > @end)" id="start-is-before-end">id port-range-end-date-is-before-start-date</sch:assert>
     </sch:rule>         
  </sch:pattern>
 
</sch:schema>

• Have you included examples of how to use your new feature(s)?
• Have you updated all OSCAL website and readme documentation affected by the changes you made? Changes to the OSCAL website can be made in the docs/content directory of your branch.

[JustKuzya]

The reasonable change for the ports

[brian-ruf]

@iMichaela I have also encountered this and am glad to see it was resolved and merged to develop. Is there an ETA on merging to main?