[dmarc-ietf] Fwd: [Technical Errata Reported] RFC7489 (7865)

["Murray S. Kucherawy" <[e-mail]>]

This seems like it's probably legitimate.  Does it need to be fixed in the
-bis document?

-MSK

---------- Forwarded message ---------
From: RFC Errata System <[e-mail]>
Date: Sat, Mar 23, 2024 at 8:04 AM
Subject: [Technical Errata Reported] RFC7489 (7865)
To: <[e-mail]>, <[e-mail]>, <[e-mail]>
Cc: <[e-mail]>, <[e-mail]>


The following errata report has been submitted for RFC7489,
"Domain-based Message Authentication, Reporting, and Conformance (DMARC)".

--------------------------------------
You may review the report below and at:
https://www.rfc-editor.org/errata/eid7865

--------------------------------------
Type: Technical
Reported by: Fränz Friederes <[e-mail]>

Section: Appendix C

Original Text
-------------
<!-- Credit to Roger L. Costello for IPv4 regex
    http://mailman.ic.ac.uk/pipermail/xml-dev/1999-December/
          018018.html -->
<!-- Credit to java2s.com for IPv6 regex
    http://www.java2s.com/Code/XML/XML-Schema/
          IPv6addressesareeasiertodescribeusingasimpleregex.htm -->
<xs:simpleType name="IPAddress">
  <xs:restriction base="xs:string">
    <xs:pattern value="((1?[0-9]?[0-9]|2[0-4][0-9]|25[0-5]).){3}
                (1?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])|
                ([A-Fa-f0-9]{1,4}:){7}[A-Fa-f0-9]{1,4}"/>
  </xs:restriction>
</xs:simpleType>

Corrected Text
--------------
<!-- Credit to Roger L. Costello for IPv4 regex
    http://mailman.ic.ac.uk/pipermail/xml-dev/1999-December/
          018050.html -->
<!-- Credit to java2s.com for IPv6 regex
    http://www.java2s.com/Code/XML/XML-Schema/
          IPv6addressesareeasiertodescribeusingasimpleregex.htm -->
<xs:simpleType name="IPAddress">
  <xs:restriction base="xs:string">
    <xs:pattern value="((1?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])\.){3}
                (1?[0-9]?[0-9]|2[0-4][0-9]|25[0-5])|
                ([A-Fa-f0-9]{1,4}:){7}[A-Fa-f0-9]{1,4}"/>
  </xs:restriction>
</xs:simpleType>

Notes
-----
The IPv4 regex contains a period "." that should be corrected to an escaped
period "\." As stated in the follow up message of the one referenced in the
IPv4 regex credit: "I just realized that there is a bug [...] The period
(.) is a special character meaning 'any character'. To indicate that we
want a period and not 'any character' the period must be escaped with a
backslash, i.e., \." Following the XML schema provided in the original
Appendix C, strings like "1a1a1a1" and "1111111" are considered valid IPv4
addresses, although they are not usable.

Instructions:
-------------
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--------------------------------------
RFC7489 (draft-kucherawy-dmarc-base-12)
--------------------------------------
Title               : Domain-based Message Authentication, Reporting, and
Conformance (DMARC)
Publication Date    : March 2015
Author(s)           : M. Kucherawy, Ed., E. Zwicky, Ed.
Category            : INFORMATIONAL
Source              : INDEPENDENT
Stream              : INDEPENDENT
Verifying Party     : ISE & Editorial Board