DNS Stateful Operations
draft-ietf-dnsop-session-signal-15
| The information below is for an old version of the document | |||
|---|---|---|---|
| Document | Type | Active Internet-Draft (dnsop WG) | |
| Last updated | 2018-09-12 (latest revision 2018-08-02) | ||
| Replaces | draft-bellis-dnsop-session-signal | ||
| Stream | IETF | ||
| Intended RFC status | Proposed Standard | ||
| Formats | plain text pdf html bibtex | ||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Tim Wicinski | ||
| Shepherd write-up | Show (last changed 2018-05-15) | ||
| IESG | IESG state | IESG Evaluation::AD Followup | |
| Consensus Boilerplate | Yes | ||
| Telechat date |
Has enough positions to pass. |
||
| Responsible AD | Warren Kumari | ||
| Send notices to | "Tim Wicinski" <tjw.ietf@gmail.com> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | None | ||
DNSOP Working Group R. Bellis
Internet-Draft ISC
Updates: 1035, 7766 (if approved) S. Cheshire
Intended status: Standards Track Apple Inc.
Expires: March 16, 2019 J. Dickinson
S. Dickinson
Sinodun
T. Lemon
Nibbhaya Consulting
T. Pusateri
Unaffiliated
September 12, 2018
DNS Stateful Operations
draft-ietf-dnsop-session-signal-15
Abstract
This document defines a new DNS OPCODE for DNS Stateful Operations
(DSO). DSO messages communicate operations within persistent
stateful sessions, using type-length-value (TLV) syntax. Three TLVs
are defined that manage session timeouts, termination, and encryption
padding, and a framework is defined for extensions to enable new
stateful operations. This document updates RFC 1035 by adding a new
DNS header opcode which has different message semantics, and a new
result code. This document updates RFC 7766 by redefining a session,
providing new guidance on connection re-use, and providing a new
mechanism for handling session idle timeouts.
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 March 16, 2019.
Bellis, et al. Expires March 16, 2019 [Page 1]
Internet-Draft DNS Stateful Operations September 2018
Copyright Notice
Copyright (c) 2018 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
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described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 5
3. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 6
4. Applicability . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1. Use Cases . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1.1. Session Management . . . . . . . . . . . . . . . . . 9
4.1.2. Long-lived Subscriptions . . . . . . . . . . . . . . 9
4.2. Applicable Transports . . . . . . . . . . . . . . . . . . 10
5. Protocol Details . . . . . . . . . . . . . . . . . . . . . . 11
5.1. DSO Session Establishment . . . . . . . . . . . . . . . . 12
5.1.1. Session Establishment Failure . . . . . . . . . . . . 12
5.1.2. Session Establishment Success . . . . . . . . . . . . 13
5.2. Operations After Session Establishment . . . . . . . . . 14
5.3. Session Termination . . . . . . . . . . . . . . . . . . . 15
5.3.1. Handling Protocol Errors . . . . . . . . . . . . . . 15
5.4. Message Format . . . . . . . . . . . . . . . . . . . . . 16
5.4.1. DNS Header Fields in DSO Messages . . . . . . . . . . 17
5.4.2. DSO Data . . . . . . . . . . . . . . . . . . . . . . 19
5.4.3. TLV Syntax . . . . . . . . . . . . . . . . . . . . . 21
5.4.4. EDNS(0) and TSIG . . . . . . . . . . . . . . . . . . 24
5.5. Message Handling . . . . . . . . . . . . . . . . . . . . 25
5.5.1. Delayed Acknowledgement Management . . . . . . . . . 26
5.5.2. MESSAGE ID Namespaces . . . . . . . . . . . . . . . . 27
5.5.3. Error Responses . . . . . . . . . . . . . . . . . . . 28
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