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rfc:rfc3808

Network Working Group I. McDonald Request for Comments: 3808 High North Category: Informational June 2004

                          IANA Charset MIB

Status of this Memo

 This memo provides information for the Internet community.  It does
 not specify an Internet standard of any kind.  Distribution of this
 memo is unlimited.

Copyright Notice

 Copyright (C) The Internet Society (2004).

Abstract

 This memo defines a portion of the Management Information Base (MIB)
 for use with network management protocols in the Internet community.
 This IANA Charset MIB is now an IANA registry.  In particular, a
 single textual convention 'IANACharset' is defined that may be used
 to specify charset labels in MIB objects.  'IANACharset' was
 extracted from Printer MIB v2 (RFC 3805).  'IANACharset' was
 originally defined (and mis-named) as 'CodedCharSet' in Printer MIB
 v1 (RFC 1759).  A tool has been written in C, that may be used by
 IANA to regenerate this IANA Charset MIB, when future charsets are
 registered in accordance with the IANA Charset Registration
 Procedures (RFC 2978).

Table of Contents

 1.  Introduction. . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Conformance Terminology . . . . . . . . . . . . . . . .   2
     1.2.  Charset Terminology . . . . . . . . . . . . . . . . . .   2
 2.  The Internet-Standard Management Framework. . . . . . . . . .   2
 3.  Generation of IANA Charset MIB. . . . . . . . . . . . . . . .   3
 4.  Definition of IANA Charset MIB. . . . . . . . . . . . . . . .   3
 5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
 6.  Internationalization Considerations . . . . . . . . . . . . .  10
 7.  Security Considerations . . . . . . . . . . . . . . . . . . .  11
 8.  Acknowledgements. . . . . . . . . . . . . . . . . . . . . . .  11
 9.  References. . . . . . . . . . . . . . . . . . . . . . . . . .  11
     9.1.  Normative References. . . . . . . . . . . . . . . . . .  11
     9.2.  Informative References. . . . . . . . . . . . . . . . .  12
 10. Authors' Addresses. . . . . . . . . . . . . . . . . . . . . .  13
 11. Full Copyright Statement. . . . . . . . . . . . . . . . . . .  14

McDonald Informational [Page 1] RFC 3808 IANA Charset MIB June 2004

1. Introduction

 This IANA Charset MIB [CHARMIB] module defines the single textual
 convention 'IANACharset'.  Once adopted, all future versions of the
 IANA Charset MIB [CHARMIB] may be machine-generated whenever the IANA
 Charset Registry [CHARSET] is updated by IANA staff according to the
 procedures defined in [RFC2978], using the utility [CHARGEN]
 described in section 3 of this document or any other machine-
 generation method.
 It is strongly recommended that future updates to the IANA Charset
 MIB [CHARMIB] be machine-generated (rather than hand-edited) to avoid
 asynchrony between the IANA Charset Registry [CHARSET] and the IANA
 Charset MIB [CHARMIB].
 Note:  Questions and comments on this IANA Charset MIB [CHARMIB]
 should be sent to the editor (imcdonald@sharplabs.com) and IANA
 (iana@iana.org) with a copy to the IETF Charsets mailing list (ietf-
 charset@iana.org).

1.1. Conformance Terminology

 The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
 "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
 document are to be interpreted as described in BCP 14, RFC 2119
 [RFC2119].

1.2. Charset Terminology

 The following terms are used in this specification, exactly as
 defined in section 1 'Definitions and Notation' of the IANA Charset
 Registration Procedures [RFC2978]:  "character", "charset", "coded
 character set (CCS)", and "character encoding scheme (CES)".

2. The Internet-Standard Management Framework

 For a detailed overview of the documents that describe the current
 Internet-Standard Management Framework, please refer to section 7 of
 RFC 3410 [RFC3410].
 Managed objects are accessed via a virtual information store, termed
 the Management Information Base or MIB.  MIB objects are generally
 accessed through the Simple Network Management Protocol (SNMP).
 Objects in the MIB are defined using the mechanisms defined in the
 Structure of Management Information (SMI).  This memo specifies a MIB
 module that is compliant to the SMIv2, which is described in STD 58,
 RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579], and STD 58, RFC 2580
 [RFC2580].

McDonald Informational [Page 2] RFC 3808 IANA Charset MIB June 2004

3. Generation of IANA Charset MIB

 Intellectual Property:  The C language utility 'ianachar.c' [CHARGEN]
 and the IANA Charset MIB template file [CHARTEMP] are hereby donated
 by the author (Ira McDonald) to IANA, in perpetuity, free of license
 or any other restraint.
 The [CHARGEN] utility may be used to generate an updated version of
 the 'IANACharset' textual convention by reading and parsing the
 (currently plaintext) IANA Charset Registry [CHARSET].
 This utility parses each charset registration, finding (in order):
 1) The 'Name' field (which is saved for a fallback - see below);
 2) The 'MIBenum' field (which contains the IANA-assigned positive
    decimal enum value); and
 3) The (usually present) 'Alias' field that begins with 'cs' (that
    contains the IANA-assigned enum label).  If an 'Alias' field is
    not found, the utility constructs one from the 'Name' field by:
  1. Beginning the enum label with a lowercase 'cs' prefix;
  1. Copying _only_ alpha/numeric characters from the 'Name' field

to the enum label (ignoring punctuation, whitespace, etc.).

4. Definition of IANA Charset MIB

IANA-CHARSET-MIB DEFINITIONS ::= BEGIN – http://www.iana.org/assignments/ianacharset-mib

IMPORTS

  MODULE-IDENTITY,
      mib-2
          FROM SNMPv2-SMI                              -- [RFC2578]
  TEXTUAL-CONVENTION
          FROM SNMPv2-TC;                              -- [RFC2579]

ianaCharsetMIB MODULE-IDENTITY

  LAST-UPDATED    "200406080000Z"
  ORGANIZATION    "IANA"
  CONTACT-INFO    "       Internet Assigned Numbers Authority
                  Postal: ICANN
                          4676 Admiralty Way, Suite 330
                          Marina del Rey, CA 90292

McDonald Informational [Page 3] RFC 3808 IANA Charset MIB June 2004

                  Tel:    +1 310 823 9358
                  E-Mail: iana@iana.org"
  DESCRIPTION     "This MIB module defines the IANACharset
                  TEXTUAL-CONVENTION.  The IANACharset TC is used to
                  specify the encoding of string objects defined in
                  a MIB.
                  Each version of this MIB will be released based on
                  the IANA Charset Registry file (see RFC 2978) at
                  http://www.iana.org/assignments/character-sets.
                  Note:  The IANACharset TC, originally defined in
                  RFC 1759, was inaccurately named CodedCharSet.
                  Note:  Best practice is to define new MIB string
                  objects with invariant UTF-8 (RFC 3629) syntax
                  using the SnmpAdminString TC (defined in RFC 3411)
                  in accordance with IETF Policy on Character Sets and
                  Languages (RFC 2277).
                  Copyright (C) The Internet Society (2004).  The
                  initial version of this MIB module was published
                  in RFC 3808; for full legal notices see the RFC
                  itself.  Supplementary information may be
                  available on
                  http://www.ietf.org/copyrights/ianamib.html."
  1. - revision history
  REVISION        "200406080000Z"
  DESCRIPTION     "Original version transferred from Printer MIB,
                  generated from the IANA maintained assignments
                  http://www.iana.org/assignments/character-sets."
  ::= { mib-2 106 }

IANACharset ::= TEXTUAL-CONVENTION

  STATUS  current
  DESCRIPTION
      "Specifies an IANA registered 'charset' - coded character set
      (CCS) plus optional character encoding scheme (CES) - terms
      defined in 'IANA Charset Registration Procedures' (RFC 2978).
      Objects of this syntax are used to specify the encoding for
      string objects defined in one or more MIBs.  For example, the
      prtLocalizationCharacterSet, prtInterpreterDefaultCharSetIn, and
      prtInterpreterDefaultCharSetOut objects defined in Printer MIB.

McDonald Informational [Page 4] RFC 3808 IANA Charset MIB June 2004

      The current list of 'charset' names and enumerated values
      is contained in the IANA Character Set Registry at:
         http://www.iana.org/assignments/character-sets
      Enum names are derived from the IANA Charset Registry 'Alias'
      fields that begin with 'cs' (for character set).
      Enum values are derived from the parallel 'MIBenum' fields."
  SYNTAX  INTEGER {
      other(1),   -- used if the designated
                  -- character set is not currently
                  -- registered by IANA
      unknown(2), -- used as a default value
      csASCII(3),
      csISOLatin1(4),
      csISOLatin2(5),
      csISOLatin3(6),
      csISOLatin4(7),
      csISOLatinCyrillic(8),
      csISOLatinArabic(9),
      csISOLatinGreek(10),
      csISOLatinHebrew(11),
      csISOLatin5(12),
      csISOLatin6(13),
      csISOTextComm(14),
      csHalfWidthKatakana(15),
      csJISEncoding(16),
      csShiftJIS(17),
      csEUCPkdFmtJapanese(18),
      csEUCFixWidJapanese(19),
      csISO4UnitedKingdom(20),
      csISO11SwedishForNames(21),
      csISO15Italian(22),
      csISO17Spanish(23),
      csISO21German(24),
      csISO60DanishNorwegian(25),
      csISO69French(26),
      csISO10646UTF1(27),
      csISO646basic1983(28),
      csINVARIANT(29),
      csISO2IntlRefVersion(30),
      csNATSSEFI(31),
      csNATSSEFIADD(32),
      csNATSDANO(33),
      csNATSDANOADD(34),
      csISO10Swedish(35),
      csKSC56011987(36),
      csISO2022KR(37),

McDonald Informational [Page 5] RFC 3808 IANA Charset MIB June 2004

      csEUCKR(38),
      csISO2022JP(39),
      csISO2022JP2(40),
      csISO13JISC6220jp(41),
      csISO14JISC6220ro(42),
      csISO16Portuguese(43),
      csISO18Greek7Old(44),
      csISO19LatinGreek(45),
      csISO25French(46),
      csISO27LatinGreek1(47),
      csISO5427Cyrillic(48),
      csISO42JISC62261978(49),
      csISO47BSViewdata(50),
      csISO49INIS(51),
      csISO50INIS8(52),
      csISO51INISCyrillic(53),
      csISO54271981(54),
      csISO5428Greek(55),
      csISO57GB1988(56),
      csISO58GB231280(57),
      csISO61Norwegian2(58),
      csISO70VideotexSupp1(59),
      csISO84Portuguese2(60),
      csISO85Spanish2(61),
      csISO86Hungarian(62),
      csISO87JISX0208(63),
      csISO88Greek7(64),
      csISO89ASMO449(65),
      csISO90(66),
      csISO91JISC62291984a(67),
      csISO92JISC62991984b(68),
      csISO93JIS62291984badd(69),
      csISO94JIS62291984hand(70),
      csISO95JIS62291984handadd(71),
      csISO96JISC62291984kana(72),
      csISO2033(73),
      csISO99NAPLPS(74),
      csISO102T617bit(75),
      csISO103T618bit(76),
      csISO111ECMACyrillic(77),
      csa71(78),
      csa72(79),
      csISO123CSAZ24341985gr(80),
      csISO88596E(81),
      csISO88596I(82),
      csISO128T101G2(83),
      csISO88598E(84),
      csISO88598I(85),

McDonald Informational [Page 6] RFC 3808 IANA Charset MIB June 2004

      csISO139CSN369103(86),
      csISO141JUSIB1002(87),
      csISO143IECP271(88),
      csISO146Serbian(89),
      csISO147Macedonian(90),
      csISO150(91),
      csISO151Cuba(92),
      csISO6937Add(93),
      csISO153GOST1976874(94),
      csISO8859Supp(95),
      csISO10367Box(96),
      csISO158Lap(97),
      csISO159JISX02121990(98),
      csISO646Danish(99),
      csUSDK(100),
      csDKUS(101),
      csKSC5636(102),
      csUnicode11UTF7(103),
      csISO2022CN(104),
      csISO2022CNEXT(105),
      csUTF8(106),
      csISO885913(109),
      csISO885914(110),
      csISO885915(111),
      csISO885916(112),
      csGBK(113),
      csGB18030(114),
      csOSDEBCDICDF0415(115),
      csOSDEBCDICDF03IRV(116),
      csOSDEBCDICDF041(117),
      csUnicode(1000),
      csUCS4(1001),
      csUnicodeASCII(1002),
      csUnicodeLatin1(1003),
      csUnicodeIBM1261(1005),
      csUnicodeIBM1268(1006),
      csUnicodeIBM1276(1007),
      csUnicodeIBM1264(1008),
      csUnicodeIBM1265(1009),
      csUnicode11(1010),
      csSCSU(1011),
      csUTF7(1012),
      csUTF16BE(1013),
      csUTF16LE(1014),
      csUTF16(1015),
      csCESU8(1016),
      csUTF32(1017),
      csUTF32BE(1018),

McDonald Informational [Page 7] RFC 3808 IANA Charset MIB June 2004

      csUTF32LE(1019),
      csBOCU1(1020),
      csWindows30Latin1(2000),
      csWindows31Latin1(2001),
      csWindows31Latin2(2002),
      csWindows31Latin5(2003),
      csHPRoman8(2004),
      csAdobeStandardEncoding(2005),
      csVenturaUS(2006),
      csVenturaInternational(2007),
      csDECMCS(2008),
      csPC850Multilingual(2009),
      csPCp852(2010),
      csPC8CodePage437(2011),
      csPC8DanishNorwegian(2012),
      csPC862LatinHebrew(2013),
      csPC8Turkish(2014),
      csIBMSymbols(2015),
      csIBMThai(2016),
      csHPLegal(2017),
      csHPPiFont(2018),
      csHPMath8(2019),
      csHPPSMath(2020),
      csHPDesktop(2021),
      csVenturaMath(2022),
      csMicrosoftPublishing(2023),
      csWindows31J(2024),
      csGB2312(2025),
      csBig5(2026),
      csMacintosh(2027),
      csIBM037(2028),
      csIBM038(2029),
      csIBM273(2030),
      csIBM274(2031),
      csIBM275(2032),
      csIBM277(2033),
      csIBM278(2034),
      csIBM280(2035),
      csIBM281(2036),
      csIBM284(2037),
      csIBM285(2038),
      csIBM290(2039),
      csIBM297(2040),
      csIBM420(2041),
      csIBM423(2042),
      csIBM424(2043),
      csIBM500(2044),
      csIBM851(2045),

McDonald Informational [Page 8] RFC 3808 IANA Charset MIB June 2004

      csIBM855(2046),
      csIBM857(2047),
      csIBM860(2048),
      csIBM861(2049),
      csIBM863(2050),
      csIBM864(2051),
      csIBM865(2052),
      csIBM868(2053),
      csIBM869(2054),
      csIBM870(2055),
      csIBM871(2056),
      csIBM880(2057),
      csIBM891(2058),
      csIBM903(2059),
      csIBBM904(2060),
      csIBM905(2061),
      csIBM918(2062),
      csIBM1026(2063),
      csIBMEBCDICATDE(2064),
      csEBCDICATDEA(2065),
      csEBCDICCAFR(2066),
      csEBCDICDKNO(2067),
      csEBCDICDKNOA(2068),
      csEBCDICFISE(2069),
      csEBCDICFISEA(2070),
      csEBCDICFR(2071),
      csEBCDICIT(2072),
      csEBCDICPT(2073),
      csEBCDICES(2074),
      csEBCDICESA(2075),
      csEBCDICESS(2076),
      csEBCDICUK(2077),
      csEBCDICUS(2078),
      csUnknown8BiT(2079),
      csMnemonic(2080),
      csMnem(2081),
      csVISCII(2082),
      csVIQR(2083),
      csKOI8R(2084),
      csHZGB2312(2085),
      csIBM866(2086),
      csPC775Baltic(2087),
      csKOI8U(2088),
      csIBM00858(2089),
      csIBM00924(2090),
      csIBM01140(2091),
      csIBM01141(2092),
      csIBM01142(2093),

McDonald Informational [Page 9] RFC 3808 IANA Charset MIB June 2004

      csIBM01143(2094),
      csIBM01144(2095),
      csIBM01145(2096),
      csIBM01146(2097),
      csIBM01147(2098),
      csIBM01148(2099),
      csIBM01149(2100),
      csBig5HKSCS(2101),
      csIBM1047(2102),
      csPTCP154(2103),
      csAmiga1251(2104),
      csKOI7switched(2105),
      cswindows1250(2250),
      cswindows1251(2251),
      cswindows1252(2252),
      cswindows1253(2253),
      cswindows1254(2254),
      cswindows1255(2255),
      cswindows1256(2256),
      cswindows1257(2257),
      cswindows1258(2258),
      csTIS620(2259),
      reserved(3000)
  }

END

5. IANA Considerations

 IANA has assigned a base arc in the 'mgmt' (standards track) OID tree
 for the 'ianaCharset' MODULE-IDENTITY defined in the IANA Charset MIB
 [CHARMIB].
 Whenever any 'charset' is added to the IANA Charset Registry
 [CHARSET], a new version of the IANA Charset MIB [CHARMIB] may be
 machine-generated using the C language utility [CHARGEN], described
 in section 3 of this document or some other utility.

6. Internationalization Considerations

 The IANA Charset MIB [CHARMIB] defines the 'IANACharset' textual
 convention that may be used in a given MIB module to supply explicit
 character set labels for one or more text string objects defined in
 that MIB module.
 For example, the Printer MIB [RFC1759] defines the three character
 set label objects 'prtLocalizationCharacterSet' (for description and
 console strings), 'prtInterpreterDefaultCharSetIn' (for received

McDonald Informational [Page 10] RFC 3808 IANA Charset MIB June 2004

 print job input data), and 'prtIntpreterDefaultCharSetOut' (for
 processed print job output data).
 The IANA Charset MIB [CHARMIB] supports implementation of the best
 practices specified in "IETF Policy on Character Sets and Languages"
 [RFC2277].
 Note:  The use of the 'SnmpAdminString' textual convention defined in
 [RFC3411], which has a fixed character set of UTF-8 [RFC3629], is
 STRONGLY RECOMMENDED in defining new MIB modules.  The IANA Charset
 MIB [CHARMIB] supports locale-specific MIB objects with variable
 character sets.

7. Security Considerations

 This MIB module does not define any management objects.  Instead, it
 defines a (set of) textual convention(s) which may be used by other
 MIB modules to define management objects.
 Meaningful security considerations can only be written in the MIB
 modules that define management objects.  Therefore, this document has
 no impact on the security of the Internet.

8. Acknowledgements

 The editor would like to thank:  Bert Wijnen (Lucent) for his
 original suggestion that the 'IANACharset' textual convention should
 be extracted from Printer MIB v2 [RFC3805]; Ron Bergman (Hitachi
 Printing Solutions) and Harry Lewis (IBM) for their many years of
 effort as editors of Printer MIB v2 [RFC3805].

9. References

9.1. Normative References

 [RFC2119]    Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.
 [RFC2277]    Alvestrand, H., "IETF Policy on Character Sets and
              Languages", RFC 2277, January 1998.
 [RFC2578]    McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Structure of Management Information Version 2 (SMIv2)",
              STD 58, RFC 2578, April 1999.
 [RFC2579]    McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Textual Conventions for SMIv2", STD 58, RFC 2579, April
              1999.

McDonald Informational [Page 11] RFC 3808 IANA Charset MIB June 2004

 [RFC2580]    McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Conformance Statements for SMIv2", STD 58, RFC 2580,
              April 1999.
 [RFC2978]    Freed, N. and J. Postel, "IANA Charset Registration
              Procedures", BCP 19, RFC 2978, October 2000.
 [RFC3411]    Harrington, D., Presuhn, R., and B. Wijnen, "An
              Architecture for Describing SNMP Network Management
              Frameworks", STD 62, RFC 3411, December 2002.
 [RFC3629]    Yergeau, F., "UTF-8, a transformation format of ISO
              10646", RFC 3629, November 2003.

9.2. Informative References

 [CHARGEN]    IANA Charset MIB Generation Utility (archived at):
              ftp://www.pwg.org/pub/pwg/pmp/tools/ianachar.c
 [CHARMIB]    IANA Charset MIB (in the future, to be archived at):
              http://www.iana.org/assignments/ianacharset-mib
 [CHARSET]    IANA Charset Registry (archived at):
              http://www.iana.org/assignments/character-sets
 [CHARTEMP]   IANA Charset MIB template file (archived at):
              ftp://www.pwg.org/pub/pwg/pmp/tools/ianachar.dat
 [RFC1759]    Smith, R., Wright, F., Hastings, T., Zilles, S., and J.
              Gyllenskog.  "Printer MIB", RFC 1759, March 1995.
 [RFC3805]    Bergman, R.,  Lewis, H., and I. McDonald, "Printer MIB
              v2", RFC 3805, June 2004.
 [RFC3410]    Case, J., Mundy, P., Partain, D., and B. Stewart,
              "Introduction and Applicability Statements for
              Internet-Standard Network Management Framework", RFC
              3410, December 2002.

McDonald Informational [Page 12] RFC 3808 IANA Charset MIB June 2004

10. Authors' Addresses

 Ira McDonald
 High North Inc
 221 Ridge Ave
 Grand Marais, MI  49839
 USA
 Phone: +1 906 494 2434
 EMail: imcdonald@sharplabs.com
 Internet Assigned Numbers Authority (IANA)
 ICANN
 4676 Admiralty Way, Suite 330
 Marina del Rey, CA  90292
 USA
 Phone: +1 310 823 9358
 EMail: iana@iana.org
 Note:  Questions and comments on this IANA Charset MIB [CHARMIB]
 should be sent to the editor (imcdonald@sharplabs.com) and IANA
 (iana@iana.org) with a copy to the IETF Charsets mailing list
 (ietf-charset@iana.org).

McDonald Informational [Page 13] RFC 3808 IANA Charset MIB June 2004

11. Full Copyright Statement

 Copyright (C) The Internet Society (2004).  This document is subject
 to the rights, licenses and restrictions contained in BCP 78, and
 except as set forth therein, the authors retain all their rights.
 This document and the information contained herein are provided on an
 "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
 OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
 ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
 INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
 INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
 WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Intellectual Property

 The IETF takes no position regarding the validity or scope of any
 Intellectual Property Rights or other rights that might be claimed to
 pertain to the implementation or use of the technology described in
 this document or the extent to which any license under such rights
 might or might not be available; nor does it represent that it has
 made any independent effort to identify any such rights.  Information
 on the procedures with respect to rights in RFC documents can be
 found in BCP 78 and BCP 79.
 Copies of IPR disclosures made to the IETF Secretariat and any
 assurances of licenses to be made available, or the result of an
 attempt made to obtain a general license or permission for the use of
 such proprietary rights by implementers or users of this
 specification can be obtained from the IETF on-line IPR repository at
 http://www.ietf.org/ipr.
 The IETF invites any interested party to bring to its attention any
 copyrights, patents or patent applications, or other proprietary
 rights that may cover technology that may be required to implement
 this standard.  Please address the information to the IETF at ietf-
 ipr@ietf.org.

Acknowledgement

 Funding for the RFC Editor function is currently provided by the
 Internet Society.

McDonald Informational [Page 14]

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