Internet Engineering Task Force M. Barbosa Internet-Draft Sine Nomine Associates Intended status: Informational 24 August 2023 Expires: 25 February 2024 Repurpose spares2 Field for Volume Lock Timestamp in nvldbentry and uvldbentry draft-barbosa-afs3-vldb-locktimestamp-00 Abstract This document proposes the repurposing of the currently unused spares2 field within the nvldbentry and uvldbentry structures. The primary objective is to utilize this field for storing the timestamp representing the date and time when a given volume location entry was locked. To make this possible, this memo requests the allocation of a new capability bit, VLDB_CAPABILITY_LOCKTIMESTAMP, to be advertised by the Volume Location Server. When advertised, this bit indicates that the server has the capacity to provide the timestamp in question. Internet Draft Comments Comments regarding this draft are solicited. Please include the AFS-3 protocol standardization mailing list (afs3-standardization@openafs.org) as a recipient of any comments. 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 https://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 25 February 2024. Barbosa Expires 25 February 2024 [Page 1] Internet-Draft VLDB_CAPABILITY_LOCKTIMESTAMP August 2023 Copyright Notice Copyright (c) 2023 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/ 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 Revised BSD License text as described in Section 4.e of the Trust Legal Provisions and are provided without warranty as described in the Revised BSD License. This document may not be modified, and derivative works of it may not be created, and it may not be published except as an Internet-Draft. Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2 1.1. Requirements Language . . . . . . . . . . . . . . . . . . 3 2. Motivation . . . . . . . . . . . . . . . . . . . . . . . . . 3 3. Capability description . . . . . . . . . . . . . . . . . . . 3 4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 3 5. AFS Assigned Numbers Registrar Considerations . . . . . . . . 3 6. Security Considerations . . . . . . . . . . . . . . . . . . . 3 7. References . . . . . . . . . . . . . . . . . . . . . . . . . 3 7.1. Normative References . . . . . . . . . . . . . . . . . . 3 7.2. Informative References . . . . . . . . . . . . . . . . . 4 Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 4 Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 4 1. Introduction The Volume Location Server is a critical component in AFS, responsible for providing a lookup service for volumes, identifying the server or set of servers on which volume instances can be found. Currently, there is a lack of standardized mechanisms to convey whether it can provide the date and time when a volume location entry was locked. This memo seeks to address this limitation by repurposing a currently unused volume location entry field and requesting the allocation of a new capability bit. Barbosa Expires 25 February 2024 [Page 2] Internet-Draft VLDB_CAPABILITY_LOCKTIMESTAMP August 2023 1.1. Requirements Language 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. 2. Motivation Knowing the date and time when a volume location entry was locked can be valuable for various purposes, such as auditing and troubleshooting. It allows administrators and users to track and analyze the history of volume locks, enabling them to understand the sequence of events and take appropriate actions when necessary. 3. Capability description If the VLDB_CAPABILITY_LOCKTIMESTAMP bit is advertised, the Volume Location Server should be able to retrieve and return the lock timestamp for a given volume location entry upon request from clients. The lock timestamp should represent the date and time when a given entry was locked. To make this possible, the spares2 field within the nvldbentry and uvldbentry structures has been designated for the purpose of returning the mentioned timestamp. 4. IANA Considerations This memo includes no request to IANA. 5. AFS Assigned Numbers Registrar Considerations This memo requests the allocation of a new capability bit to be advertised by the Volume Location Server. 6. Security Considerations This memo does not introduce any new security considerations beyond those already inherent in the underlying protocols it relies on. 7. References 7.1. Normative References Barbosa Expires 25 February 2024 [Page 3] Internet-Draft VLDB_CAPABILITY_LOCKTIMESTAMP August 2023 [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, DOI 10.17487/RFC2119, March 1997, . [RFC8174] Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC 2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174, May 2017, . 7.2. Informative References [I-D.keiser-afs3-capabilities-00] Keiser, T., "AFS-3 Protocol Capabilities Query Mechanism", 2012, . Acknowledgements The author would like to thank Thomas Keiser, as the draft authored by him, titled "AFS-3 Protocol Capabilities Query Mechanism" [I-D.keiser-afs3-capabilities-00], served as a reference throughout the development of this draft. Author's Address Marcio Brito Barbosa Sine Nomine Associates Email: mbarbosa@sinenomine.net Barbosa Expires 25 February 2024 [Page 4]