Content-ID header field in Session Initiation Protocol (SIP)
draft-ietf-sipcore-content-id-05

Document Type Active Internet-Draft (sipcore WG)
Last updated 2017-05-15 (latest revision 2017-05-08)
Replaces draft-holmberg-sipcore-content-id
Stream IETF
Intended RFC status Proposed Standard
Formats plain text xml pdf html bibtex
Reviews
Stream WG state Submitted to IESG for Publication (wg milestone: May 2017 - Request publication ... )
Document shepherd Jean Mahoney
Shepherd write-up Show (last changed 2017-05-10)
IESG IESG state AD Evaluation
Consensus Boilerplate Yes
Telechat date
Responsible AD Ben Campbell
Send notices to Jean Mahoney <mahoney@nostrum.com>
SIPCORE Working Group                                        C. Holmberg
Internet-Draft                                               I. Sedlacek
Updates: 5621 (if approved)                                     Ericsson
Intended status: Standards Track                             May 9, 2017
Expires: November 10, 2017

      Content-ID header field in Session Initiation Protocol (SIP)
                    draft-ietf-sipcore-content-id-05

Abstract

   This document specifies the Content-ID header field for usage in the
   Session Initiation Protocol (SIP).  The document also updates RFC
   5621, to enable a Content-ID URL to reference a complete message-body
   and metadata provided by some additional SIP header fields.

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
   Task Force (IETF).  Note that other groups may also distribute
   working documents as Internet-Drafts.  The list of current Internet-
   Drafts is at http://datatracker.ietf.org/drafts/current/.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as "work in progress."

   This Internet-Draft will expire on November 10, 2017.

Copyright Notice

   Copyright (c) 2017 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
   (http://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must
   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Holmberg & Sedlacek     Expires November 10, 2017               [Page 1]
Internet-Draft              Content-ID in SIP                   May 2017

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Identifying a body part . . . . . . . . . . . . . . . . .   2
     1.2.  Referencing a body part . . . . . . . . . . . . . . . . .   3
     1.3.  Problem statement . . . . . . . . . . . . . . . . . . . .   3
     1.4.  Consequences  . . . . . . . . . . . . . . . . . . . . . .   3
       1.4.1.  Example 1 . . . . . . . . . . . . . . . . . . . . . .   3
       1.4.2.  Example 2 . . . . . . . . . . . . . . . . . . . . . .   4
     1.5.  Solution  . . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Conventions . . . . . . . . . . . . . . . . . . . . . . . . .   4
   3.  Content-ID header field . . . . . . . . . . . . . . . . . . .   4
     3.1.  Introduction  . . . . . . . . . . . . . . . . . . . . . .   4
     3.2.  Syntax  . . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.3.  Semantics . . . . . . . . . . . . . . . . . . . . . . . .   5
     3.4.  Procedures  . . . . . . . . . . . . . . . . . . . . . . .   5
       3.4.1.  UA procedures . . . . . . . . . . . . . . . . . . . .   5
       3.4.2.  Proxy procedures  . . . . . . . . . . . . . . . . . .   6
   4.  Update to RFC 5621  . . . . . . . . . . . . . . . . . . . . .   6
   5.  Security considerations . . . . . . . . . . . . . . . . . . .   6
   6.  IANA considerations . . . . . . . . . . . . . . . . . . . . .   6
     6.1.  Header field  . . . . . . . . . . . . . . . . . . . . . .   7
   7.  Change log  . . . . . . . . . . . . . . . . . . . . . . . . .   7
   8.  Normative references  . . . . . . . . . . . . . . . . . . . .   7
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

1.1.  Identifying a body part

   A SIP message consists of a start-line, one or more header fields, an
   empty line indicating the end of the header fields, and an optional
   message-body, as specified in [RFC3261].

   The message-body can be a non-multipart message-body or a multipart
   message-body as specified in [RFC3261].

   [RFC5621] defines generic handling of a multipart message-body in a
   SIP message.

   A multipart message-body contains zero, one or several body parts,
   encoded using [RFC2045] format.

   A body part in the multipart message-body is described using header
   fields such as Content-Disposition, Content-Encoding, and Content-
   Type, which provide information on the content of the body part, as
   specified in [RFC5621].  A body part in the multipart message-body
Show full document text