Updates to SIPREC correcting Metadata Media Type
draft-ietf-sipcore-siprec-fix-mediatype-03

sipcore                                                      D. Mongrain
Internet-Draft                                        Motorola Solutions
Updates: 7866 (if approved)                                26 March 2025
Intended status: Standards Track                                        
Expires: 27 September 2025

            Updates to SIPREC correcting Metadata Media Type
               draft-ietf-sipcore-siprec-fix-mediatype-03

Abstract

   SIP-based Media Recording (SIPREC) protocol is defined by both RFC
   7865 and RFC 7866.  Unfortunately, both RFCs contradict each other
   regarding how recording metadata is to be labeled.  In addition,
   neither RFCs registered the new media type.  This document updates
   RFC 7866 to align with RFC 7865 when labeling recording metadata and
   registers the new media type.

About This Document

   This note is to be removed before publishing as an RFC.

   Status information for this document may be found at
   https://datatracker.ietf.org/doc/draft-ietf-sipcore-siprec-fix-
   mediatype/.

   Discussion of this document takes place on the WG Working Group
   mailing list (mailto:sipcore@ietf.org), which is archived at
   https://mailarchive.ietf.org/arch/browse/sipcore/.  Subscribe at
   https://www.ietf.org/mailman/listinfo/sipcore/.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on 27 September 2025.

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Copyright Notice

   Copyright (c) 2025 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents (https://trustee.ietf.org/
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   Please review these documents carefully, as they describe your rights
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   provided without warranty as described in the Revised BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions and Definitions . . . . . . . . . . . . . . . . .   2
   3.  Updates to RFC 7866 . . . . . . . . . . . . . . . . . . . . .   3
   4.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
     5.1.  Media Type Registration . . . . . . . . . . . . . . . . .   3
   6.  Normative References  . . . . . . . . . . . . . . . . . . . .   4
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .   5
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   5

1.  Introduction

   SIPREC is defined by [RFC7865] and [RFC7866].  The former specifies
   the use of 'application/rs-metadata+xml' when identifying metadata
   content, whereas the latter uses "application/rs-metadata".  Since
   [RFC7865] defines SIPREC metadata, it was identified as normative,
   and errata 7987 (https://www.rfc-editor.org/errata/eid7987) was
   created against [RFC7865] to report the issue.  This document
   resolves the errata.

   In addition, as neither document registered the media type with IANA,
   this document rectifies this gap.

2.  Conventions and Definitions

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

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3.  Updates to RFC 7866

   Everywhere the following text occurs:

      application/rs-metadata

   Replace with:

      application/rs-metadata+xml

4.  Security Considerations

   The updates specified in this memo clarify inconsistencies in
   published documents with regards to identifying recording metadata.
   They do not introduce new security considerations beyond those listed
   in [RFC7866].

5.  IANA Considerations

5.1.  Media Type Registration

   [RFC7865] defined a MIME media type for use with specifying recording
   metadata in XML data.  This media type MUST be used when specifying
   recording metadata in SIPREC.

   Type name: application

   Subtype name: rs-metadata+xml

   Required parameters: N/A

   Optional parameters: N/A

   Encoding considerations: Same as encoding considerations of
   application/xml as specified in [RFC7303].

   Security considerations: See Section 4.

   Interoperability considerations: Please note that [RFC7866] specified
   the use of "application/rs-metadata", which this document corrects.

   Published specification: [RFC7865]

   Applications which use this media type: SIPREC Clients (SRC) and
   Servers (SRS).

   Fragment identifier considerations: N/A

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   Additional information:

      Deprecated alias names for this type: N/A

      Magic number(s): N/A

      File extension(s): N/A

      Macintosh file type code(s): N/A

   Person & email address to contact for further information: IETF
   SIPCORE Working Group (sipcore@ietf.org)

   Intended usage: COMMON

   Restrictions on usage: There are no restrictions on where this media
   type can be used.

   Author: IETF SIPCORE Working Group (sipcore@ietf.org)

   Change controller: IETF

6.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/rfc/rfc2119>.

   [RFC7303]  Thompson, H. and C. Lilley, "XML Media Types", RFC 7303,
              DOI 10.17487/RFC7303, July 2014,
              <https://www.rfc-editor.org/rfc/rfc7303>.

   [RFC7865]  Ravindranath, R., Ravindran, P., and P. Kyzivat, "Session
              Initiation Protocol (SIP) Recording Metadata", RFC 7865,
              DOI 10.17487/RFC7865, May 2016,
              <https://www.rfc-editor.org/rfc/rfc7865>.

   [RFC7866]  Portman, L., Lum, H., Ed., Eckel, C., Johnston, A., and A.
              Hutton, "Session Recording Protocol", RFC 7866,
              DOI 10.17487/RFC7866, May 2016,
              <https://www.rfc-editor.org/rfc/rfc7866>.

   [RFC8174]  Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
              2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
              May 2017, <https://www.rfc-editor.org/rfc/rfc8174>.

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Acknowledgments

   Acknowledgments to Brian Rosen for his guidance with writing my first
   internet draft using the new tools and for his review.

Author's Address

   Dan Mongrain
   Motorola Solutions
   Email: Dan.Mongrain@MotorolaSolutions.com

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