Internationalization for the NFSv4 Protocols
draft-ietf-nfsv4-internationalization-00
NFSv4 D. Noveck
Internet-Draft NetApp
Updates: 8881, 7530 (if approved) March 26, 2021
Intended status: Standards Track
Expires: September 27, 2021
Internationalization for the NFSv4 Protocols
draft-ietf-nfsv4-internationalization-00
Abstract
This document describes the handling of internationalization for all
NFSv4 protocols, including NFSv4.0, NFSv4.1, NFSv4.2 and extensions
thereof, and future minor versions.
It updates RFC7530 and RFC8881.
Status of This Memo
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This Internet-Draft will expire on September 27, 2021.
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Noveck Expires September 27, 2021 [Page 1]
Internet-Draft NFSv4 Internationalization March 2021
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Requirements Language . . . . . . . . . . . . . . . . . . . . 4
2.1. Requirements Language Definition . . . . . . . . . . . . 4
2.2. Requirements Language Derivation . . . . . . . . . . . . 4
3. Internationalization and Minor Versioning . . . . . . . . . . 6
4. Changes Relative to RFC7530 . . . . . . . . . . . . . . . . . 7
5. Limitations on Internationalization-Related Processing in the
NFSv4 Context . . . . . . . . . . . . . . . . . . . . . . . . 7
6. Summary of Server Behavior Types . . . . . . . . . . . . . . 8
7. The Attribute Fs_charset_cap . . . . . . . . . . . . . . . . 9
7.1. The Attribute Fs_charset_cap in Published NFSv4.1
Specifications . . . . . . . . . . . . . . . . . . . . . 10
7.2. The Attribute Fs_charset_cap in Future NFSv4.1
Specifications . . . . . . . . . . . . . . . . . . . . . 12
8. String Encoding . . . . . . . . . . . . . . . . . . . . . . . 14
9. Normalization . . . . . . . . . . . . . . . . . . . . . . . . 15
10. Case-Insensitive Processing of File Names . . . . . . . . . . 15
10.1. Implementing Case-Insensitive Comparison of File Names . 19
10.2. Important Examples of Case-insensitive Handling of File
Names . . . . . . . . . . . . . . . . . . . . . . . . . 21
11. Internationalization-related Processing of File Names by
Clients . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
11.1. Server Restrictions to Deal with Lack of Client
Knowledge . . . . . . . . . . . . . . . . . . . . . . . 25
11.2. Client Processing of File Names for Current NFSv4
Protocols . . . . . . . . . . . . . . . . . . . . . . . 26
11.3. Client Processing of File Names for Future NFSv4
Protocols . . . . . . . . . . . . . . . . . . . . . . . 30
12. String Types with Processing Defined by Other Internet Areas 31
12.1. Effect of IDNA Changes . . . . . . . . . . . . . . . . . 33
12.2. Potential Compatibility Issues Related to IDNA Changes . 34
13. Errors Related to UTF-8 . . . . . . . . . . . . . . . . . . . 36
14. Servers That Accept File Component Names That Are Not Valid
UTF-8 Strings . . . . . . . . . . . . . . . . . . . . . . . . 37
15. Future Minor Versions and Extensions . . . . . . . . . . . . 38
16. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 39
17. Security Considerations . . . . . . . . . . . . . . . . . . . 39
18. References . . . . . . . . . . . . . . . . . . . . . . . . . 40
18.1. Normative References . . . . . . . . . . . . . . . . . . 40
18.2. Informative References . . . . . . . . . . . . . . . . . 41
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