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authorThomas Voss <mail@thomasvoss.com> 2024-11-27 20:54:24 +0100
committerThomas Voss <mail@thomasvoss.com> 2024-11-27 20:54:24 +0100
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+
+
+Independent Submission P. Fleming
+Request for Comments: 7612 Independent
+Obsoletes: 3712 I. McDonald
+Category: Informational High North
+ISSN: 2070-1721 June 2015
+
+
+ Lightweight Directory Access Protocol (LDAP):
+ Schema for Printer Services
+
+Abstract
+
+ This document defines a schema, object classes, and attributes, for
+ Printers and print services, for use with directories that support
+ the Lightweight Directory Access Protocol (RFC 4510). This document
+ is based on the Printer attributes listed in Appendix E of "Internet
+ Printing Protocol/1.1: Model and Semantics" (RFC 2911). Additional
+ Printer attributes are based on definitions in "Printer MIB v2" (RFC
+ 3805), "PWG Command Set Format for IEEE 1284 Device ID v1.0" (PWG
+ 5107.2), "IPP Job and Printer Extensions - Set 3 (JPS3)" (PWG
+ 5100.13), and "IPP Everywhere" (PWG 5100.14).
+
+ This memo is an Independent Submission to the RFC Editor by the
+ Internet Printing Protocol (IPP) Working Group of the IEEE-ISTO
+ Printer Working Group (PWG), as part of their PWG "IPP Everywhere"
+ (PWG 5100.14) project for secure mobile printing with vendor-neutral
+ Client software.
+
+ This document obsoletes RFC 3712.
+
+Status of This Memo
+
+ This document is not an Internet Standards Track specification; it is
+ published for informational purposes.
+
+ This is a contribution to the RFC Series, independently of any other
+ RFC stream. The RFC Editor has chosen to publish this document at
+ its discretion and makes no statement about its value for
+ implementation or deployment. Documents approved for publication by
+ the RFC Editor are not a candidate for any level of Internet
+ Standard; see Section 2 of RFC 5741.
+
+ Information about the current status of this document, any errata,
+ and how to provide feedback on it may be obtained at
+ http://www.rfc-editor.org/info/rfc7612.
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 1]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+Copyright Notice
+
+ Copyright (c) 2015 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.
+
+Table of Contents
+
+ 1. Introduction ....................................................4
+ 1.1. Relationship to SLP Printer Service ........................4
+ 1.2. Source of LDAP Printer Attributes ..........................4
+ 1.3. Source of LDAP Printer Schema OIDs .........................5
+ 1.3.1. IBM Assignments for RFC 3712 ........................5
+ 1.3.2. IEEE-ISTO PWG Assignments ...........................5
+ 1.4. Rationale for Design Choices ...............................5
+ 1.4.1. Rationale for Using DirectoryString Syntax ..........5
+ 1.4.2. Rationale for Using caseIgnoreMatch .................6
+ 1.4.3. Rationale for Using caseIgnoreSubstringsMatch .......7
+ 2. Conventions Used in This Document ...............................8
+ 2.1. Requirements Language ......................................8
+ 2.2. LDAP Schema Descriptions ...................................8
+ 2.3. Abbreviations ..............................................8
+ 3. Definition of Object Classes ....................................9
+ 3.1. slpServicePrinter .........................................10
+ 3.2. printerAbstract ...........................................10
+ 3.3. printerService ............................................11
+ 3.4. printerServiceAuxClass ....................................12
+ 3.5. printerIPP ................................................12
+ 3.6. printerLPR ................................................12
+ 4. Definition of Attribute Types ..................................13
+ 4.1. printer-uri ...............................................15
+ 4.2. printer-xri-supported .....................................16
+ 4.3. printer-name ..............................................18
+ 4.4. printer-natural-language-configured .......................19
+ 4.5. printer-location ..........................................19
+ 4.6. printer-info ..............................................20
+ 4.7. printer-more-info .........................................21
+ 4.8. printer-make-and-model ....................................21
+ 4.9. printer-ipp-versions-supported ............................22
+ 4.10. printer-multiple-document-jobs-supported .................23
+ 4.11. printer-charset-configured ...............................23
+ 4.12. printer-charset-supported ................................24
+
+
+
+Fleming & McDonald Informational [Page 2]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ 4.13. printer-generated-natural-language-supported .............24
+ 4.14. printer-document-format-supported ........................25
+ 4.15. printer-color-supported ..................................25
+ 4.16. printer-compression-supported ............................26
+ 4.17. printer-pages-per-minute .................................26
+ 4.18. printer-pages-per-minute-color ...........................27
+ 4.19. printer-finishings-supported .............................27
+ 4.20. printer-number-up-supported ..............................28
+ 4.21. printer-sides-supported ..................................28
+ 4.22. printer-media-supported ..................................29
+ 4.23. printer-media-local-supported ............................30
+ 4.24. printer-resolution-supported .............................30
+ 4.25. printer-print-quality-supported ..........................31
+ 4.26. printer-job-priority-supported ...........................32
+ 4.27. printer-copies-supported .................................32
+ 4.28. printer-job-k-octets-supported ...........................33
+ 4.29. printer-current-operator .................................33
+ 4.30. printer-service-person ...................................34
+ 4.31. printer-delivery-orientation-supported ...................34
+ 4.32. printer-stacking-order-supported .........................35
+ 4.33. printer-output-features-supported ........................36
+ 4.34. printer-aliases ..........................................37
+ 4.35. printer-device-id ........................................37
+ 4.36. printer-device-service-count .............................38
+ 4.37. printer-uuid .............................................38
+ 4.38. printer-charge-info ......................................39
+ 4.39. printer-charge-info-uri ..................................39
+ 4.40. printer-geo-location .....................................40
+ 4.41. printer-ipp-features-supported ...........................41
+ 5. Definition of Syntaxes .........................................42
+ 6. Definition of Matching Rules ...................................42
+ 7. IANA Considerations ............................................42
+ 7.1. Registration of Attribute Types ...........................43
+ 7.2. Object Classes and Attribute Types from RFC 3712 ..........44
+ 8. Internationalization Considerations ............................45
+ 9. Security Considerations ........................................45
+ 10. References ....................................................46
+ 10.1. Normative References .....................................46
+ 10.2. Informative References ...................................50
+ Appendix A. Changes since RFC 3712 ................................52
+ Acknowledgments ...................................................54
+ Authors' Addresses ................................................54
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 3]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+1. Introduction
+
+ This document defines several object classes to provide Lightweight
+ Directory Access Protocol (LDAP) [RFC4510] applications with flexible
+ options in defining Printer information using an LDAP schema.
+ Classes are provided for defining directory entries with common
+ Printer information as well as for extending existing directory
+ entries with Service Location Protocol Version 2 (SLPv2) [RFC2608],
+ Internet Printing Protocol/1.1 (IPP/1.1) [RFC2911], and lineprinter
+ (LPR) [RFC1179] protocol-specific information.
+
+ This memo is an Independent Submission to the RFC Editor by the
+ Internet Printing Protocol Working Group of the IEEE-ISTO Printer
+ Working Group, as part of their Printer Working Group (PWG) "IPP
+ Everywhere" (PWG 5100.14) project for secure mobile printing with
+ vendor-neutral Client software.
+
+1.1. Relationship to SLP Printer Service
+
+ The schema defined in this document is technically aligned with the
+ stable IANA-registered 'service:printer:' v2.0 template [SLPPRT20],
+ for compatibility with already-deployed SLPv2 [RFC2608] service
+ advertising and discovery infrastructure. The attribute syntaxes are
+ technically aligned with the 'service:printer:' v2.0 template;
+ therefore, simpler types are sometimes used (for example,
+ 'DirectoryString' [RFC4517] rather than 'labeledURI' [RFC2079] for
+ the 'printer-uri' attribute).
+
+1.2. Source of LDAP Printer Attributes
+
+ The schema defined in this document is based on:
+
+ o all of the Printer attributes listed in Appendix E ("Generic
+ Directory Schema") of "Internet Printing Protocol/1.1: Model and
+ Semantics" [RFC2911] that are defined in Section 4.4 ("Printer
+ Description Attributes") of [RFC2911]
+
+ o selected Printer attributes defined in "Printer MIB v2" [RFC3805],
+ "PWG Command Set for IEEE 1284 Device ID v1.0" [PWG5107.2], "IPP
+ Job and Printer Extensions - Set 3 (JPS3)" [PWG5100.13], and "IPP
+ Everywhere" [PWG5100.14]
+
+ See the table of Printer attributes and source documents in Section 4
+ ("Definition of Attribute Types") of this document.
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 4]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+1.3. Source of LDAP Printer Schema OIDs
+
+1.3.1. IBM Assignments for RFC 3712
+
+ In March 2000, IBM permanently assigned ASN.1 OIDs to all of the
+ object classes and attribute types that were defined in the original
+ LDAP Printer Schema [RFC3712] (see Section 7.2).
+
+1.3.2. IEEE-ISTO PWG Assignments
+
+ In October 2011, IBM permanently delegated the base ASN.1 OID
+ "1.3.18.0.2.24.46" to the IEEE-ISTO PWG for use in any PWG project.
+ In October 2011, the IEEE-ISTO PWG permanently assigned subordinate
+ ASN.1 OIDs for all of the new attribute types defined in this updated
+ LDAP Printer Schema (see Section 7.1).
+
+1.4. Rationale for Design Choices
+
+1.4.1. Rationale for Using DirectoryString Syntax
+
+ The attribute syntax 'DirectoryString' (UTF-8 [STD63]) defined in
+ [RFC4517] is specified for several groups of string attributes that
+ are defined in this document:
+
+ 1) URI
+
+ - printer-uri, printer-xri-supported, printer-more-info,
+ printer-charge-info-uri, printer-uuid
+
+ The UTF-8 encoding is compatible with deployment of (UTF-8
+ based) Internationalized Resource Identifiers (IRIs) [RFC3987].
+
+ 2) Description
+
+ - printer-name, printer-location, printer-info,
+ printer-make-and-model
+
+ The UTF-8 encoding supports descriptions in any language,
+ conformant with the IETF Policy on Character Sets and Languages
+ [BCP18].
+
+ Note: The printer-natural-language-configured attribute contains
+ a language tag [BCP47] for these description attributes (for
+ example, to support text-to-speech conversions).
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 5]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ 3) Keyword
+
+ - printer-compression-supported, printer-finishings-supported,
+ printer-media-supported, printer-media-local-supported,
+ printer-print-quality-supported
+
+ The UTF-8 encoding is compatible with the current IPP/1.1
+ [RFC2911] definition of the equivalent attributes, most of which
+ have the IPP/1.1 union syntax 'keyword' or 'name'. The keyword
+ attributes defined in this document are extensible by site-
+ specific or vendor-specific 'names' that behave like new
+ 'keywords'.
+
+ Note: In IPP/1.1, each value is strongly typed over-the-wire as
+ either 'keyword' or 'name'. This union selector is not
+ preserved in the definitions of these equivalent LDAP
+ attributes.
+
+1.4.2. Rationale for Using caseIgnoreMatch
+
+ The EQUALITY matching rule 'caseIgnoreMatch' defined in [RFC4517] is
+ specified for several groups of string attributes that are defined in
+ this document:
+
+ 1) URI
+
+ These URI attributes specify EQUALITY matching with
+ 'caseIgnoreMatch' (rather than with 'caseExactMatch') in order to
+ conform to the spirit of [STD66], which requires case-insensitive
+ matching on the host part of a URI versus case-sensitive matching
+ on the remainder of a URI.
+
+ These URI attributes follow existing practice of supporting
+ case-insensitive equality matching for host names in the
+ associatedDomain attribute defined in [RFC4524].
+
+ Either equality matching rule choice would be a compromise:
+
+ a) case-sensitive whole URI matching can lead to false negative
+ matches and has been shown to be fragile (given deployed client
+ applications that 'pretty up' host names displayed and
+ transferred in URI);
+
+ b) case-insensitive whole URI matching can lead to false positive
+ matches, although it is a dangerous practice to publish URI
+ that differ only by case (for example, in the path elements).
+
+
+
+
+
+Fleming & McDonald Informational [Page 6]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ 2) Description
+
+ Case-insensitive equality matching is more user-friendly for
+ description attributes.
+
+ 3) Keyword
+
+ Case-insensitive equality matching is more user-friendly for
+ keyword attributes.
+
+ 4) IEEE 1284 Device ID
+
+ Case-insensitive equality matching is mandatory for IEEE 1284
+ Device ID attributes.
+
+1.4.3. Rationale for Using caseIgnoreSubstringsMatch
+
+ The SUBSTR matching rule 'caseIgnoreSubstringsMatch' defined in
+ [RFC4517] is specified for several groups of string attributes that
+ are defined in this document:
+
+ 1) URI
+
+ These URI attributes follow existing practice of supporting
+ case-insensitive equality matching for host names in the
+ associatedDomain attribute defined in [RFC4524].
+
+ 2) Description
+
+ Support for case-insensitive substring matching is more
+ user-friendly for description attributes.
+
+ 3) Keyword
+
+ Support for case-insensitive substring matching is more
+ user-friendly for keyword attributes.
+
+ 4) IEEE 1284 Device ID
+
+ Support for case-insensitive substring matching is mandatory for
+ IEEE 1284 Device ID attributes.
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 7]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+2. Conventions Used in This Document
+
+2.1. Requirements Language
+
+ 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 [RFC2119].
+
+2.2. LDAP Schema Descriptions
+
+ Schema definitions are provided using LDAP [RFC4510] description
+ formats. Definitions provided here are formatted (line wrapped) for
+ readability.
+
+2.3. Abbreviations
+
+ This document makes use of the following abbreviations (given with
+ their expanded forms and references for further reading):
+
+ IANA - Internet Assigned Numbers Authority
+ <http://www.iana.org>
+
+ IEEE - Institute of Electrical and Electronics Engineers
+ <http://www.ieee.org>
+
+ IPP - Internet Printing Protocol [RFC2911] [PWG5100.12]
+ <http://www.pwg.org/ipp/>
+
+ ISTO - IEEE Industry Standards and Technology Organization
+ <http://www.ieee-isto.org/>
+
+ PWG - IEEE-ISTO Printer Working Group
+ <http://www.pwg.org>
+
+ RFC - Request for Comments
+ <http://www.rfc-editor.org>
+
+ TLS - Transport Layer Security [RFC5246]
+
+ URI - Uniform Resource Identifier [STD66]
+
+ URL - Uniform Resource Locator [STD66]
+
+ UTF-8 - Unicode Transformation Format - 8-bit [STD63]
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 8]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+3. Definition of Object Classes
+
+ We define the following LDAP object classes for use with both generic
+ Printer-related information and services specific to SLPv2 [RFC2608],
+ IPP/1.1 [RFC2911], and LPR [RFC1179].
+
+ slpServicePrinter - auxiliary class for SLP-registered Printers
+ printerAbstract - abstract class for all Printer classes
+ printerService - structural class for Printers
+ printerServiceAuxClass - auxiliary class for Printers
+ printerIPP - auxiliary class for IPP Printers
+ printerLPR - auxiliary class for LPR Printers
+
+ The following are some examples of how applications could choose to
+ use these classes when creating directory entries:
+
+ 1) Use printerService for directory entries containing common Printer
+ information.
+
+ 2) Use both printerService and slpServicePrinter for directory
+ entries containing common Printer information for SLP-registered
+ Printers.
+
+ 3) Use printerService, printerLPR, and printerIPP for directory
+ entries containing common Printer information for Printers that
+ support both LPR and IPP.
+
+ 4) Use printerServiceAuxClass and object classes not defined by this
+ document for directory entries containing common Printer
+ information. In this example, printerServiceAuxClass is used for
+ extending other structural classes defining Printer information
+ with common Printer information defined in this document.
+
+ Refer to Section 4 for the definition of attribute types referenced
+ by these object classes. We use attribute names instead of OIDs in
+ object class definitions for clarity. Some attribute names described
+ in [RFC2911] have been prefixed with 'printer-' as recommended in
+ [RFC2926] and [SLPPRT20].
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 9]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+3.1. slpServicePrinter
+
+ ( 1.3.18.0.2.6.254
+ NAME 'slpServicePrinter'
+ DESC 'Service Location Protocol (SLP) information.'
+ AUXILIARY
+ SUP slpService
+ )
+
+ This auxiliary class defines information specific to the Service
+ Location Protocol (SLPv2) [RFC2608]. It MAY be used to create new,
+ or extend existing, directory entries with SLP 'service:printer'
+ abstract service type information as defined in [SLPPRT20]. This
+ object class is derived from 'slpService', the parent class for all
+ SLP services, defined in [RFC2926].
+
+3.2. printerAbstract
+
+ ( 1.3.18.0.2.6.258
+ NAME 'printerAbstract'
+ DESC 'Printer-related information.'
+ ABSTRACT
+ SUP top
+ MAY ( printer-name $
+ printer-natural-language-configured $
+ printer-location $
+ printer-info $
+ printer-more-info $
+ printer-make-and-model $
+ printer-multiple-document-jobs-supported $
+ printer-charset-configured $
+ printer-charset-supported $
+ printer-generated-natural-language-supported $
+ printer-document-format-supported $
+ printer-color-supported $
+ printer-compression-supported $
+ printer-pages-per-minute $
+ printer-pages-per-minute-color $
+ printer-finishings-supported $
+ printer-number-up-supported $
+ printer-sides-supported $
+ printer-media-supported $
+ printer-media-local-supported $
+ printer-resolution-supported $
+ printer-print-quality-supported $
+ printer-job-priority-supported $
+ printer-copies-supported $
+ printer-job-k-octets-supported $
+
+
+
+Fleming & McDonald Informational [Page 10]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ printer-current-operator $
+ printer-service-person $
+ printer-delivery-orientation-supported $
+ printer-stacking-order-supported $
+ printer-output-features-supported $
+ printer-device-id $
+ printer-device-service-count $
+ printer-uuid $
+ printer-charge-info $
+ printer-charge-info-uri $
+ printer-geo-location )
+ )
+
+ This abstract class defines Printer information. It is a base class
+ for deriving other Printer-related classes, such as, but not limited
+ to, classes defined in this document. It defines a common set of
+ Printer attributes that are not specific to any one type of service,
+ protocol, or operating system.
+
+3.3. printerService
+
+ ( 1.3.18.0.2.6.255
+ NAME 'printerService'
+ DESC 'Printer information.'
+ STRUCTURAL
+ SUP printerAbstract
+ MAY ( printer-uri $
+ printer-xri-supported )
+ )
+
+ This structural class defines Printer information. It is derived
+ from class printerAbstract and thus inherits common Printer
+ attributes. This class can be used with or without auxiliary classes
+ to define Printer information. Auxiliary classes can be used to
+ extend the common Printer information with information specific to
+ the protocol, service, or operating system.
+
+ Note: When extending other structural classes with auxiliary classes,
+ printerService SHOULD NOT be used.
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 11]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+3.4. printerServiceAuxClass
+
+ ( 1.3.18.0.2.6.257
+ NAME 'printerServiceAuxClass'
+ DESC 'Printer information.'
+ AUXILIARY
+ SUP printerAbstract
+ MAY ( printer-uri $
+ printer-xri-supported )
+ )
+
+ This auxiliary class defines Printer information. It is derived from
+ class printerAbstract and thus inherits common Printer attributes.
+
+3.5. printerIPP
+
+ ( 1.3.18.0.2.6.256
+ NAME 'printerIPP'
+ DESC 'Internet Printing Protocol (IPP) information.'
+ AUXILIARY
+ SUP top
+ MAY ( printer-ipp-versions-supported $
+ printer-ipp-features-supported $
+ printer-multiple-document-jobs-supported )
+ )
+
+ This auxiliary class defines Internet Printing Protocol (IPP/1.1)
+ [RFC2911] information. It is used to extend structural classes with
+ IPP-specific Printer information.
+
+ Note: See "Internet Printing Protocol/1.1: IPP URL Scheme" [RFC3510]
+ and "Internet Printing Protocol (IPP) over HTTPS Transport Binding
+ and the 'ipps' URI Scheme" [RFC7472] for conforming URI for IPP
+ Printers.
+
+3.6. printerLPR
+
+ ( 1.3.18.0.2.6.253
+ NAME 'printerLPR'
+ DESC 'LPR information.'
+ AUXILIARY
+ SUP top
+ MUST ( printer-name )
+ MAY ( printer-aliases )
+ )
+
+ This auxiliary class defines LPR [RFC1179] information. It is used
+ to identify directory entries that support LPR.
+
+
+
+Fleming & McDonald Informational [Page 12]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4. Definition of Attribute Types
+
+ The following attribute types are referenced by the object classes
+ defined in Section 3.
+
+ The following attribute types reference syntax OIDs defined in
+ Section 3 of [RFC4517] (see Section 5 ("Definition of Syntaxes")
+ below).
+
+ The following attribute types reference matching rule names (instead
+ of OIDs) for clarity (see Section 6 below). For optional attributes,
+ if the Printer information is not known, the attribute value
+ SHOULD NOT be set. In the following definitions, referenced matching
+ rules are defined in Section 4 of [RFC4517] and discussed in
+ Section 6 ("Definition of Matching Rules") later in this document.
+
+ Note: For compatibility with existing implementations of [RFC3712]
+ and underlying string length limits in [RFC2707], [RFC2911],
+ [RFC3805], [PWG5107.2], [PWG5100.13], and [PWG5100.14],
+ implementations of the attributes defined in this document SHOULD NOT
+ exceed those underlying string length limits (to avoid truncation and
+ false matches).
+
+ Note: For interoperability and consistent text display, values of
+ attributes defined in this document (a) SHOULD be normalized as
+ recommended in "Unicode Format for Network Interchange" [RFC5198];
+ (b) SHOULD NOT contain DEL or any C0 or C1 control characters except
+ for HT, CR, and LF; (c) SHOULD only contain CR and LF characters
+ together (not as singletons); and (d) SHOULD NOT contain HT, CR, or
+ LF characters in names, e.g., printer-name and printer-aliases.
+
+ Note: Some of the following attributes are described as 'List of xxx'
+ (using a comma as the member delimiter). Some other attributes are
+ described as 'One of xxx' (single-valued). In all cases, any
+ attribute can have multiple values represented as multiple instances,
+ except where explicitly restricted in syntax to be single-valued.
+
+ Note: Values of the string attributes printer-xri-supported and
+ printer-resolution-supported use different field delimiters ('<' and
+ '>', respectively). These two field delimiters are different for
+ compatibility with the corresponding attributes in the IANA-
+ registered SLP 'service:printer:' v2.0 template [SLPPRT20], which was
+ defined before the original LDAP Printer Schema [RFC3712] was
+ written.
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 13]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ The following table is a summary of the attribute names defined by
+ this document and their corresponding source document names as
+ defined in [RFC2911], [RFC3805], [PWG5107.2], or [PWG5100.13]. Some
+ source attribute names have been prefixed with 'printer-' as
+ recommended in [RFC2926], to address the flat namespace for LDAP
+ identifiers.
+
+ LDAP and SLP Printer Schema Source Document and Attribute Name
+ ------------------------------ -------------------------------------
+ *** IPP/1.1 and Semantics Model [RFC2911]
+ printer-uri
+ printer-xri-supported
+ [printer-uri-supported]
+ [uri-authentication-supported]
+ [uri-security-supported]
+ printer-name printer-name
+ printer-natural-language-configured
+ natural-language-configured
+ printer-location printer-location
+ printer-info printer-info
+ printer-more-info printer-more-info
+ printer-make-and-model printer-make-and-model
+ printer-ipp-versions-supported ipp-versions-supported
+ printer-multiple-document-jobs-supported
+ multiple-document-jobs-supported
+ printer-charset-configured charset-configured
+ printer-charset-supported charset-supported
+ printer-generated-natural-language-supported
+ generated-natural-language-supported
+ printer-document-format-supported
+ document-format-supported
+ printer-color-supported color-supported
+ printer-compression-supported compression-supported
+ printer-pages-per-minute pages-per-minute
+ printer-pages-per-minute-color pages-per-minute-color
+ printer-finishings-supported finishings-supported
+ printer-number-up-supported number-up-supported
+ printer-sides-supported sides-supported
+ printer-media-supported media-supported
+ printer-media-local-supported [site names from IPP media-supported]
+ printer-resolution-supported printer-resolution-supported
+ printer-print-quality-supported print-quality-supported
+ printer-job-priority-supported job-priority-supported
+ printer-copies-supported copies-supported
+ printer-job-k-octets-supported job-k-octets-supported
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 14]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ *** Printer MIB v2 [RFC3805]
+ printer-current-operator prtGeneralCurrentOperator
+ printer-service-person prtGeneralServicePerson
+ printer-delivery-orientation-supported
+ prtOutputPageDeliveryOrientation
+ printer-stacking-order-supported
+ prtOutputStackingOrder
+ printer-output-features-supported
+ [prtOutputBursting]
+ [prtOutputDecollating]
+ [prtOutputPageCollated]
+ [prtOutputOffsetStacking]
+ printer-aliases prtGeneralPrinterName
+
+ *** Cmd Set 1284 Device ID [PWG5107.2]
+ printer-device-id printer-device-id
+
+ *** IPP Job/Printer Ext Set3 [PWG5100.13]
+ printer-device-service-count device-service-count
+ printer-uuid printer-uuid
+ printer-charge-info printer-charge-info
+ printer-charge-info-uri printer-charge-info-uri
+ printer-geo-location printer-geo-location
+ printer-ipp-features-supported ipp-features-supported
+
+4.1. printer-uri
+
+ ( 1.3.18.0.2.4.1140
+ NAME 'printer-uri'
+ DESC 'A URI supported by this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ If the printer-xri-supported LDAP attribute is implemented, then this
+ printer-uri value MUST be listed in printer-xri-supported.
+
+ See [STD66] for details of URI syntax.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 1023 octets in length.
+
+ Note: LDAP application clients SHOULD NOT attempt to use malformed
+ URI values read from this attribute. LDAP administrative clients
+ SHOULD NOT write malformed URI values into this attribute.
+
+
+
+
+Fleming & McDonald Informational [Page 15]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: See "Internet Printing Protocol/1.1: IPP URL Scheme" [RFC3510]
+ and "Internet Printing Protocol (IPP) over HTTPS Transport Binding
+ and the 'ipps' URI Scheme" [RFC7472] for conforming URI for IPP
+ Printers.
+
+ Note: For SLP-registered Printers, the LDAP printer-uri attribute
+ SHOULD be set to the value of the SLP-registered URL of the Printer,
+ for interworking with SLPv2 [RFC2608] service discovery.
+
+ Note: See Sections 1.4.1, 1.4.2, and 1.4.3 for rationale for design
+ choices.
+
+4.2. printer-xri-supported
+
+ ( 1.3.18.0.2.4.1107
+ NAME 'printer-xri-supported'
+ DESC 'An XRI (extended resource identifier) supported by
+ this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ Each value of this attribute MUST consist of a URI (uniform resource
+ identifier) followed by (optional) authentication and security
+ fields.
+
+ Each XRI field MUST be delimited by '<', with optional trailing
+ whitespace. For example:
+
+ 'uri=ipp://example.com/ipp< auth=digest< sec=tls<'
+ 'uri=ipps://example.com/ipp< auth=digest< sec=tls<'
+ 'uri=lpr://example.com/lpr< auth=none< sec=none<'
+ 'uri=mailto:printer@example.com< auth=none< sec=none<'
+
+ Note: See the note in Section 4 about the different field delimiters
+ used in the printer-xri-supported and printer-resolution-supported
+ attributes ('<' and '>', respectively), chosen for compatibility with
+ the IANA-registered SLP 'service:printer:' v2.0 template [SLPPRT20].
+
+ Note: Multiple values for this attribute are represented as multiple
+ instances of this attribute.
+
+ See [STD66] for details of URI syntax.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 1023 octets in length.
+
+
+
+
+Fleming & McDonald Informational [Page 16]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: LDAP application clients SHOULD NOT attempt to use malformed
+ URI values read from this attribute. LDAP administrative clients
+ SHOULD NOT write malformed URI values into this attribute.
+
+ Note: This attribute is based on the IPP/1.1 [RFC2911] attributes
+ 'printer-uri-supported', 'uri-authentication-supported', and
+ 'uri-security-supported' (called the 'Three Musketeers' because they
+ are parallel, ordered attributes). This attribute unfolds those
+ IPP/1.1 attributes and thus avoids the ordering (and same number of
+ values) constraints of the IPP/1.1 separate attributes.
+
+ Defined keywords for fields include:
+
+ 'uri' (IPP 'printer-uri-supported')
+ 'auth' (IPP 'uri-authentication-supported')
+ 'sec' (IPP 'uri-security-supported')
+
+ A missing 'auth' field SHOULD be interpreted to mean 'none'. Per
+ IPP/1.1 [RFC2911], "IPP Job and Printer Extensions - Set 3 (JPS3)"
+ [PWG5100.13], and the IANA IPP registry [IANAIPP], defined values of
+ the 'auth' field include:
+
+ 'none' (no authentication for this URI)
+ 'requesting-user-name' (from operation request)
+ 'basic' (HTTP/1.1 Basic [RFC2617] and [RFC7235])
+ 'digest' (HTTP/1.1 Digest [RFC2617] and [RFC7235])
+ 'certificate' (X.509 Certificate [RFC5280] and [RFC6818])
+ 'negotiate' (HTTP/1.1 Negotiate [RFC4559])
+
+ The 'certificate' value refers to the IPP Client certificate
+ extracted from the TLS session.
+
+ A missing 'sec' field SHOULD be interpreted to mean 'none'. Per
+ IPP/1.1 [RFC2911] and the IANA IPP registry [IANAIPP], defined values
+ of the 'sec' field include:
+
+ 'none' (no security for this URI)
+ 'ssl3' (Netscape's Secure Socket Layer protocol (SSL3))
+ 'tls' (IETF TLS, [RFC5246])
+
+ Note: The syntax and delimiter for this attribute are aligned with
+ the equivalent attribute in the 'service:printer:' v2.0 template
+ [SLPPRT20]. Whitespace is permitted after (but not before) the
+ delimiter '<'.
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 17]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: See "Internet Printing Protocol/1.1: IPP URL Scheme" [RFC3510]
+ and "Internet Printing Protocol (IPP) over HTTPS Transport Binding
+ and the 'ipps' URI Scheme" [RFC7472] for conforming URI for IPP
+ Printers.
+
+ Note: See Sections 1.4.1, 1.4.2, and 1.4.3 for rationale for design
+ choices.
+
+4.3. printer-name
+
+ ( 1.3.18.0.2.4.1135
+ NAME 'printer-name'
+ DESC 'The site-specific administrative name of this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ Values of this attribute SHOULD be specified in the language
+ specified in printer-natural-language-configured (for example, to
+ support text-to-speech conversions), although the Printer's name MAY
+ be specified in any language.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 255 octets in length.
+
+ Note: This name can be the last part of the Printer's URI, or it can
+ be completely unrelated. This name can contain characters that are
+ not allowed in a conventional URI (see [STD66]).
+
+ Note: For interoperability, values of this attribute (a) SHOULD be
+ normalized as recommended in "Unicode Format for Network Interchange"
+ [RFC5198]; and (b) SHOULD NOT contain DEL or any C0 or C1 control
+ characters.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 18]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.4. printer-natural-language-configured
+
+ ( 1.3.18.0.2.4.1119
+ NAME 'printer-natural-language-configured'
+ DESC 'The configured natural language for LDAP attributes of
+ syntax DirectoryString (UTF-8) in this directory entry.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ Also, a possible natural language for IPP protocol string attributes
+ set by operator, system administrator, or manufacturer. Also, the
+ (declared) natural language of the printer-name, printer-location,
+ printer-info, and printer-make-and-model attributes of this Printer.
+
+ Values of language tags MUST conform to "Tags for Identifying
+ Languages" [BCP47]. For example:
+
+ 'en-us' (English as spoken in the US)
+ 'fr-fr' (French as spoken in France)
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 63 octets in length.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], language tags in this
+ attribute SHOULD be lowercase normalized.
+
+4.5. printer-location
+
+ ( 1.3.18.0.2.4.1136
+ NAME 'printer-location'
+ DESC 'The physical location of this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ For example:
+
+ 'Room 123A'
+ 'Second floor of building XYZ'
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 127 octets in length.
+
+
+
+
+Fleming & McDonald Informational [Page 19]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: For interoperability and consistent text display, values of
+ this attribute (a) SHOULD be normalized as recommended in "Unicode
+ Format for Network Interchange" [RFC5198]; (b) SHOULD NOT contain DEL
+ or any C0 or C1 control characters except for HT, CR, and LF; and
+ (c) SHOULD only contain CR and LF characters together (not as
+ singletons).
+
+4.6. printer-info
+
+ ( 1.3.18.0.2.4.1139
+ NAME 'printer-info'
+ DESC 'Descriptive information about this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ For example:
+
+ 'This Printer can be used for printing color transparencies for
+ HR presentations'
+
+ 'Out of courtesy for others, please print only small (1-5 page)
+ jobs at this Printer'
+
+ 'This Printer is going away on July 1, 1997; please find a new
+ Printer'
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 127 octets in length.
+
+ Note: For interoperability and consistent text display, values of
+ this attribute (a) SHOULD be normalized as recommended in "Unicode
+ Format for Network Interchange" [RFC5198]; (b) SHOULD NOT contain DEL
+ or any C0 or C1 control characters except for HT, CR, and LF; and
+ (c) SHOULD only contain CR and LF characters together (not as
+ singletons).
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 20]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.7. printer-more-info
+
+ ( 1.3.18.0.2.4.1134
+ NAME 'printer-more-info'
+ DESC 'A URI for more information about this specific Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ For example, this could be an HTTP URI referencing an HTML page
+ accessible to a Web Browser. The information obtained from this URI
+ is intended for end user consumption.
+
+ See [STD66] for details of URI syntax.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 1023 octets in length.
+
+ Note: LDAP application clients SHOULD NOT attempt to use malformed
+ URI values read from this attribute. LDAP administrative clients
+ SHOULD NOT write malformed URI values into this attribute.
+
+ Note: See Sections 1.4.1, 1.4.2, and 1.4.3 for rationale for design
+ choices.
+
+4.8. printer-make-and-model
+
+ ( 1.3.18.0.2.4.1138
+ NAME 'printer-make-and-model'
+ DESC 'Make and model of this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 127 octets in length.
+
+ Note: The Printer manufacturer MAY initially populate this attribute.
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 21]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: For interoperability and consistent text display, values of
+ this attribute (a) SHOULD be normalized as recommended in "Unicode
+ Format for Network Interchange" [RFC5198]; (b) SHOULD NOT contain DEL
+ or any C0 or C1 control characters except for HT, CR, and LF; and
+ (c) SHOULD only contain CR and LF characters together (not as
+ singletons).
+
+4.9. printer-ipp-versions-supported
+
+ ( 1.3.18.0.2.4.1133
+ NAME 'printer-ipp-versions-supported'
+ DESC 'Comma-delimited list of IPP versions supported by
+ this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ '1.1,2.0'
+
+ Note: Length overflow in values of this attribute MUST be handled by
+ multiple instances of this attribute, i.e., individual
+ comma-delimited list members MUST NOT be truncated.
+
+ The IPP protocol version(s) MUST include major and minor versions,
+ i.e., the exact version numbers for which this Printer implementation
+ meets the IPP version-specific conformance requirements as registered
+ in the IANA IPP registry [IANAIPP].
+
+ IANA-registered versions of IPP currently are:
+
+ '1.0' (IPP/1.0 [RFC2566], OBSOLETE)
+ '1.1' (IPP/1.1 [RFC2911])
+ '2.0' (IPP/2.0 [PWG5100.12])
+ '2.1' (IPP/2.1 [PWG5100.12])
+ '2.2' (IPP/2.2 [PWG5100.12])
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 22]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.10. printer-multiple-document-jobs-supported
+
+ ( 1.3.18.0.2.4.1132
+ NAME 'printer-multiple-document-jobs-supported'
+ DESC 'Indicates whether or not this Printer supports more than one
+ document per job.'
+ EQUALITY booleanMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.7
+ SINGLE-VALUE
+ )
+
+4.11. printer-charset-configured
+
+ ( 1.3.18.0.2.4.1109
+ NAME 'printer-charset-configured'
+ DESC 'The configured charset for IPP protocol values of error
+ and status messages generated by this Printer.'
+ EQUALITY caseIgnoreMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ Also, a possible charset for IPP protocol string attributes set by
+ operator, system administrator, or manufacturer. For example:
+
+ 'utf-8' (ISO 10646/Unicode in UTF-8 transform [STD63])
+ 'iso-8859-1' (ISO Latin1)
+
+ Values of charset tags SHOULD be defined in the IANA registry of
+ Character Sets [IANACHAR] (see also [BCP19]), and the '(preferred
+ MIME name)' SHOULD be used as the charset tag in this attribute.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 63 octets in length.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], charset tags in this
+ attribute SHOULD be lowercase normalized.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 23]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.12. printer-charset-supported
+
+ ( 1.3.18.0.2.4.1131
+ NAME 'printer-charset-supported'
+ DESC 'One of the charsets supported for IPP protocol values of
+ IPP string attributes that correspond to attributes of
+ syntax DirectoryString (UTF-8) for this directory entry.'
+ EQUALITY caseIgnoreMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'utf-8' (ISO 10646/Unicode in UTF-8 transform [STD63])
+ 'iso-8859-1' (ISO Latin1)
+
+ Note: Multiple values for this attribute are represented as multiple
+ instances of this attribute.
+
+ Values of charset tags SHOULD be defined in the IANA registry of
+ Character Sets [IANACHAR] (see also [BCP19]), and the '(preferred
+ MIME name)' SHOULD be used as the charset tag in this attribute.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 63 octets in length.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], charset tags in this
+ attribute SHOULD be lowercase normalized.
+
+4.13. printer-generated-natural-language-supported
+
+ ( 1.3.18.0.2.4.1137
+ NAME 'printer-generated-natural-language-supported'
+ DESC 'One of the natural languages supported for LDAP attributes of
+ syntax DirectoryString (UTF-8) in this directory entry.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ Values of language tags SHOULD conform to "Tags for Identifying
+ Languages" [BCP47]. For example:
+
+ 'en-us' (English as spoken in the US)
+ 'fr-ca' (French as spoken in Canada)
+
+ Note: Multiple values for this attribute are represented as multiple
+ instances of this attribute.
+
+
+
+Fleming & McDonald Informational [Page 24]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 63 octets in length.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], language tags in this
+ attribute SHOULD be lowercase normalized.
+
+4.14. printer-document-format-supported
+
+ ( 1.3.18.0.2.4.1130
+ NAME 'printer-document-format-supported'
+ DESC 'One of the source document formats that can be interpreted
+ and printed by this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ Values of document formats SHOULD be MIME media types defined in the
+ IANA registry of MIME Media Types [IANAMIME] (see also [BCP13]).
+
+ For example:
+
+ 'application/postscript' (Adobe PostScript)
+ 'text/plain' (plain text)
+
+ Note: Multiple values for this attribute are represented as multiple
+ instances of this attribute.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 255 octets in length.
+
+4.15. printer-color-supported
+
+ ( 1.3.18.0.2.4.1129
+ NAME 'printer-color-supported'
+ DESC 'Indicates whether or not this Printer is capable of any type of
+ color printing at all, including highlight color.'
+ EQUALITY booleanMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.7
+ SINGLE-VALUE
+ )
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 25]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.16. printer-compression-supported
+
+ ( 1.3.18.0.2.4.1128
+ NAME 'printer-compression-supported'
+ DESC 'Comma-delimited list of compression algorithms supported by
+ this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'none'
+ 'deflate,gzip'
+
+ Note: Length overflow in values of this attribute MUST be handled by
+ multiple instances of this attribute, i.e., individual
+ comma-delimited list members MUST NOT be truncated.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 255 octets in length.
+
+ Values defined in IPP/1.1 [RFC2911] and recorded in the IANA IPP
+ registry [IANAIPP] include:
+
+ 'none' (no compression is used)
+ 'deflate' (public domain ZIP described in [RFC1951])
+ 'gzip' (GNU ZIP described in [RFC1952])
+ 'compress' (UNIX compression described in [RFC1977])
+
+4.17. printer-pages-per-minute
+
+ ( 1.3.18.0.2.4.1127
+ NAME 'printer-pages-per-minute'
+ DESC 'The nominal number of pages per minute that can be output by
+ this Printer.'
+ EQUALITY integerMatch
+ ORDERING integerOrderingMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.27
+ SINGLE-VALUE
+ )
+
+ This attribute is informative, not a service guarantee. Typically,
+ it is the value used in marketing literature to describe this Printer
+ -- for example, the value for a simplex or black-and-white print
+ mode.
+
+
+
+
+Fleming & McDonald Informational [Page 26]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.18. printer-pages-per-minute-color
+
+ ( 1.3.18.0.2.4.1126
+ NAME 'printer-pages-per-minute-color'
+ DESC 'The nominal number of color pages per minute that can be
+ output by this Printer.'
+ EQUALITY integerMatch
+ ORDERING integerOrderingMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.27
+ SINGLE-VALUE
+ )
+
+ This attribute is informative, not a service guarantee. Typically,
+ it is the value used in marketing literature to describe this
+ Printer.
+
+4.19. printer-finishings-supported
+
+ ( 1.3.18.0.2.4.1125
+ NAME 'printer-finishings-supported'
+ DESC 'Comma-delimited list of finishing operations supported by
+ this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'staple'
+ 'staple,punch,bind'
+
+ Note: Length overflow in values of this attribute MUST be handled by
+ multiple instances of this attribute, i.e., individual
+ comma-delimited list members MUST NOT be truncated.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 255 octets in length.
+
+ Values defined in IPP/1.1 [RFC2911] and recorded in the IANA IPP
+ registry [IANAIPP] include:
+
+ 'none', 'staple', 'punch', 'cover', 'bind', 'saddle-stitch',
+ 'edge-stitch', 'staple-top-left', 'staple-bottom-left',
+ 'staple-top-right', 'staple-bottom-right', 'edge-stitch-left',
+ 'edge-stitch-top', 'edge-stitch-right', 'edge-stitch-bottom',
+ 'staple-dual-left', 'staple-dual-top', 'staple-dual-right',
+ 'staple-dual-bottom'.
+
+
+
+Fleming & McDonald Informational [Page 27]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: Implementations MAY support other values.
+
+4.20. printer-number-up-supported
+
+ ( 1.3.18.0.2.4.1124
+ NAME 'printer-number-up-supported'
+ DESC 'Maximum number of print-stream pages that can be imposed upon
+ a single side of an instance of a selected medium by this
+ Printer.'
+ EQUALITY integerMatch
+ ORDERING integerOrderingMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.27
+ SINGLE-VALUE
+ )
+
+ For example:
+
+ '1'
+ '4'
+
+ Note: Values of this attribute differ from the corresponding IPP
+ attribute, in that only the maximum number-up is mapped from the
+ corresponding IPP attribute 'number-up-supported' defined in
+ [RFC2911].
+
+4.21. printer-sides-supported
+
+ ( 1.3.18.0.2.4.1123
+ NAME 'printer-sides-supported'
+ DESC 'Comma-delimited list of impression sides (one or two) and the
+ two-sided impression rotations supported by this Printer.'
+ EQUALITY caseIgnoreMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'one-sided'
+ 'one-sided,two-sided-short-edge'
+
+ Note: Length overflow in values of this attribute MUST be handled by
+ multiple instances of this attribute, i.e., individual
+ comma-delimited list members MUST NOT be truncated.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 255 octets in length.
+
+
+
+
+
+Fleming & McDonald Informational [Page 28]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Values defined in IPP/1.1 [RFC2911] and recorded in the IANA IPP
+ registry [IANAIPP] are:
+
+ 'one-sided'
+ 'two-sided-long-edge'
+ 'two-sided-short-edge'
+
+4.22. printer-media-supported
+
+ ( 1.3.18.0.2.4.1122
+ NAME 'printer-media-supported'
+ DESC 'One of the names/sizes/types/colors of the media supported by
+ this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ Values SHOULD conform to "PWG Media Standardized Names 2.0 (MSN2)"
+ [PWG5101.1].
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 255 octets in length.
+
+ Values of standardized media size names defined in [PWG5101.1] and
+ recorded in the IANA IPP registry [IANAIPP] include:
+
+ 'na_letter_8.5x11in'
+ 'iso_a4_210x297mm'
+
+ Values of standardized media types defined in [PWG5101.1] and
+ recorded in the IANA IPP registry [IANAIPP] include:
+
+ 'envelope'
+ 'stationery'
+
+ Values of standardized media colors defined in [PWG5101.1] and
+ recorded in the IANA IPP registry [IANAIPP] include:
+
+ 'white'
+ 'blue'
+
+ Note: Multiple values for this attribute are represented as multiple
+ instances of this attribute.
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 29]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.23. printer-media-local-supported
+
+ ( 1.3.18.0.2.4.1117
+ NAME 'printer-media-local-supported'
+ DESC 'One of the site-specific media supported by this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ Values SHOULD conform to "PWG Media Standardized Names 2.0 (MSN2)"
+ [PWG5101.1].
+
+ For example:
+
+ 'custom_purchasing-form_8.5x11in' (site-specific name)
+
+ Note: Multiple values for this attribute are represented as multiple
+ instances of this attribute.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 255 octets in length.
+
+4.24. printer-resolution-supported
+
+ ( 1.3.18.0.2.4.1121
+ NAME 'printer-resolution-supported'
+ DESC 'One of the resolutions supported for printing documents by
+ this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ Each resolution value MUST be a string containing three fields:
+
+ 1) Cross-feed direction resolution (positive integer);
+
+ 2) Feed direction resolution (positive integer);
+
+ 3) Unit -- 'dpi' (dots per inch) or 'dpcm' (dots per centimeter).
+
+ Each resolution field MUST be delimited by '>', with optional
+ trailing whitespace. For example:
+
+ '300> 300> dpi>'
+ '600> 600> dpi>'
+
+
+
+
+Fleming & McDonald Informational [Page 30]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: See the note in Section 4 about the different field delimiters
+ used in the printer-xri-supported and printer-resolution-supported
+ attributes ('<' and '>', respectively), chosen for compatibility with
+ the IANA-registered SLP 'service:printer:' v2.0 template [SLPPRT20].
+
+ Note: Multiple values for this attribute are represented as multiple
+ instances of this attribute.
+
+ Note: This attribute is based on 'printer-resolution-supported'
+ defined in IPP/1.1 [RFC2911] with a complex encoding derived from
+ 'prtMarkerAddressabilityFeedDir', 'prtMarkerAddressabilityXFeedDir',
+ and 'prtMarkerAddressabilityUnit' defined in "Printer MIB v2"
+ [RFC3805] (which have integer encodings).
+
+ Note: The syntax and delimiter for this attribute are aligned with
+ the equivalent attribute in the 'service:printer:' v2.0 template
+ [SLPPRT20]. Whitespace is permitted after (but not before) the
+ delimiter '>'.
+
+4.25. printer-print-quality-supported
+
+ ( 1.3.18.0.2.4.1120
+ NAME 'printer-print-quality-supported'
+ DESC 'Comma-delimited list of print qualities supported
+ for printing documents on this Printer.'
+ EQUALITY caseIgnoreMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'unknown'
+ 'draft,normal,high'
+
+ Note: Length overflow in values of this attribute MUST be handled by
+ multiple instances of this attribute, i.e., individual
+ comma-delimited list members MUST NOT be truncated.
+
+ Values defined in IPP/1.1 [RFC2911] and recorded in the IANA IPP
+ registry [IANAIPP] include:
+
+ 'draft'
+ 'normal'
+ 'high'
+
+ Note: The value 'unknown' MUST only be reported if the corresponding
+ IPP attribute is not present, i.e., the value 'unknown' is an
+ artifact of this LDAP mapping.
+
+
+
+Fleming & McDonald Informational [Page 31]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.26. printer-job-priority-supported
+
+ ( 1.3.18.0.2.4.1110
+ NAME 'printer-job-priority-supported'
+ DESC 'Indicates the number of job priority levels supported by
+ this Printer.'
+ EQUALITY integerMatch
+ ORDERING integerOrderingMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.27
+ SINGLE-VALUE
+ )
+
+ An IPP/1.1 [RFC2911] conformant Printer, which supports job priority,
+ always supports a full range of priorities from '1' to '100' (to
+ ensure consistent behavior); therefore, this attribute describes the
+ 'granularity' of priority supported. Values of this attribute are
+ from '1' to '100'.
+
+4.27. printer-copies-supported
+
+ ( 1.3.18.0.2.4.1118
+ NAME 'printer-copies-supported'
+ DESC 'The maximum number of copies of a document that can be printed
+ as a single job on this Printer.'
+ EQUALITY integerMatch
+ ORDERING integerOrderingMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.27
+ SINGLE-VALUE
+ )
+
+ A positive value indicates the maximum supported copies. A value of
+ '0' indicates no maximum limit. A value of '-1' indicates 'unknown'.
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent attribute in the 'service:printer:' v2.0 template
+ [SLPPRT20].
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 32]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.28. printer-job-k-octets-supported
+
+ ( 1.3.18.0.2.4.1111
+ NAME 'printer-job-k-octets-supported'
+ DESC 'The maximum size of an incoming print job that this Printer
+ will accept, in kilobytes (1,024 octets).'
+ EQUALITY integerMatch
+ ORDERING integerOrderingMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.27
+ SINGLE-VALUE
+ )
+
+ A positive value indicates the maximum supported job size. A value
+ of '0' indicates no maximum limit. A value of '-1' indicates
+ 'unknown'.
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent attribute in the 'service:printer:' v2.0 template
+ [SLPPRT20].
+
+4.29. printer-current-operator
+
+ ( 1.3.18.0.2.4.1112
+ NAME 'printer-current-operator'
+ DESC 'The identity of the current human operator responsible for
+ operating this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ The value of this attribute SHOULD include information that would
+ enable other humans to reach the operator, such as a telephone
+ number.
+
+ Note: For interoperability and consistent text display, values of
+ this attribute (a) SHOULD be normalized as recommended in "Unicode
+ Format for Network Interchange" [RFC5198]; (b) SHOULD NOT contain DEL
+ or any C0 or C1 control characters except for HT, CR, and LF; and
+ (c) SHOULD only contain CR and LF characters together (not as
+ singletons).
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 33]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.30. printer-service-person
+
+ ( 1.3.18.0.2.4.1113
+ NAME 'printer-service-person'
+ DESC 'The identity of the current human service person responsible
+ for servicing this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ The value of this attribute SHOULD include information that would
+ enable other humans to reach the service person, such as a telephone
+ number.
+
+ Note: For interoperability and consistent text display, values of
+ this attribute (a) SHOULD be normalized as recommended in "Unicode
+ Format for Network Interchange" [RFC5198]; (b) SHOULD NOT contain DEL
+ or any C0 or C1 control characters except for HT, CR, and LF; and
+ (c) SHOULD only contain CR and LF characters together (not as
+ singletons).
+
+4.31. printer-delivery-orientation-supported
+
+ ( 1.3.18.0.2.4.1114
+ NAME 'printer-delivery-orientation-supported'
+ DESC 'Comma-delimited list of delivery orientations of pages as they
+ are printed and ejected supported by this Printer.'
+ EQUALITY caseIgnoreMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'unknown'
+ 'face-up,face-down'
+
+ Values defined in "Printer MIB v2" [RFC3805] for
+ prtOutputPageDeliveryOrientation are:
+
+ 'face-up'
+ 'face-down'
+
+ Note: The value 'unknown' MUST only be reported if the corresponding
+ Printer MIB attribute is not present, i.e., the value 'unknown' is an
+ artifact of this LDAP mapping.
+
+
+
+
+Fleming & McDonald Informational [Page 34]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent attribute in the 'service:printer:' v2.0 template
+ [SLPPRT20].
+
+4.32. printer-stacking-order-supported
+
+ ( 1.3.18.0.2.4.1115
+ NAME 'printer-stacking-order-supported'
+ DESC 'Comma-delimited list of stacking orders of pages as they are
+ printed and ejected supported by this Printer.'
+ EQUALITY caseIgnoreMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'unknown'
+ 'first-to-last'
+ 'first-to-last,last-to-first'
+
+ Values defined in "Printer MIB v2" [RFC3805] for
+ prtOutputStackingOrder are:
+
+ 'first-to-last'
+ 'last-to-first'
+
+ Note: The value 'unknown' MUST only be reported if the corresponding
+ Printer MIB attribute is not present, i.e., the value 'unknown' is an
+ artifact of this LDAP mapping.
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent attribute in the 'service:printer:' v2.0 template
+ [SLPPRT20].
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 35]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.33. printer-output-features-supported
+
+ ( 1.3.18.0.2.4.1116
+ NAME 'printer-output-features-supported'
+ DESC 'Comma-delimited list of output features supported by
+ this Printer.'
+ EQUALITY caseIgnoreMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'unknown'
+ 'bursting,decollating'
+ 'offset-stacking'
+
+ Note: Length overflow in values of this attribute MUST be handled by
+ multiple instances of this attribute, i.e., individual
+ comma-delimited list members MUST NOT be truncated.
+
+ Values defined in "Printer MIB v2" [RFC3805] for prtOutputBursting,
+ prtOutputDecollating, prtOutputPageCollated, and
+ prtOutputOffsetStacking are:
+
+ 'bursting'
+ 'decollating'
+ 'page-collating'
+ 'offset-stacking'
+
+ Note: The value 'unknown' MUST only be reported if the corresponding
+ Printer MIB attributes are not present, i.e., the value 'unknown' is
+ an artifact of this LDAP mapping.
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent attribute in the 'service:printer:' v2.0 template
+ [SLPPRT20].
+
+ Note: Implementations MAY support other values.
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 36]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.34. printer-aliases
+
+ ( 1.3.18.0.2.4.1108
+ NAME 'printer-aliases'
+ DESC 'One of the site-specific administrative names of this Printer
+ in addition to the value specified for printer-name.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ Values of this attribute SHOULD be specified in the language
+ specified in printer-natural-language-configured (for example, to
+ support text-to-speech conversions), although the Printer's alias MAY
+ be specified in any language.
+
+ Note: Multiple values for this attribute are represented as multiple
+ instances of this attribute.
+
+ Note: For compatibility with IPP/1.1 [RFC2911], values of this
+ attribute SHOULD NOT exceed 255 octets in length.
+
+ Note: For interoperability, values of this attribute (a) SHOULD be
+ normalized as recommended in "Unicode Format for Network Interchange"
+ [RFC5198]; and (b) SHOULD NOT contain DEL or any C0 or C1 control
+ characters.
+
+4.35. printer-device-id
+
+ ( 1.3.18.0.2.24.46.1.101
+ NAME 'printer-device-id'
+ DESC 'The IEEE 1284 Device ID for this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ Values of this attribute SHOULD conform to "PWG Command Set Format
+ for IEEE 1284 Device ID v1.0" [PWG5107.2].
+
+ Note: For compatibility with [PWG5100.14] and [PWG5107.2], values of
+ this attribute SHOULD NOT exceed 1023 octets in length.
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 37]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.36. printer-device-service-count
+
+ ( 1.3.18.0.2.24.46.1.102
+ NAME 'printer-device-service-count'
+ DESC 'The number of Printer (print service) instances configured on
+ this Imaging Device (host system).'
+ EQUALITY integerMatch
+ ORDERING integerOrderingMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.27
+ SINGLE-VALUE
+ )
+
+ A positive value indicates the number of Printer (print service)
+ instances. A value of '-1' indicates 'unknown'. A value of '0' is
+ not meaningful (because this attribute must be reported by some
+ Printer instance).
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent 'device-service-count' attribute defined in [PWG5100.13].
+
+4.37. printer-uuid
+
+ ( 1.3.18.0.2.24.46.1.104
+ NAME 'printer-uuid'
+ DESC 'A URN specifying the UUID of this Printer (print service)
+ instance on this Imaging Device (host system).'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ For example:
+
+ 'urn:uuid:f81d4fae-7dec-11d0-a765-00a0c91e6bf6'
+
+ Values of this attribute MUST conform to the Universally Unique
+ Identifier (UUID) URN namespace [RFC4122].
+
+ Note: For compatibility with [PWG5100.13] and [RFC4122], values of
+ this attribute SHOULD NOT exceed 45 octets in length.
+
+ Note: LDAP application clients SHOULD NOT attempt to use malformed
+ URN values read from this attribute. LDAP administrative clients
+ SHOULD NOT write malformed URN values into this attribute.
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent 'printer-uuid' attribute defined in [PWG5100.13].
+
+
+
+Fleming & McDonald Informational [Page 38]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.38. printer-charge-info
+
+ ( 1.3.18.0.2.24.46.1.105
+ NAME 'printer-charge-info'
+ DESC 'Descriptive information about paid printing services for this
+ Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ For example:
+
+ 'This Printer can be used for paid printing at 2 cents/page.'
+
+ Note: For compatibility with [PWG5100.13], values of this attribute
+ SHOULD NOT exceed 1023 octets in length.
+
+ Note: For interoperability and consistent text display, values of
+ this attribute (a) SHOULD be normalized as recommended in "Unicode
+ Format for Network Interchange" [RFC5198]; (b) SHOULD NOT contain any
+ C0 or C1 control characters except for HT, CR, and LF; and (c) SHOULD
+ only contain CR and LF characters together (not as singletons).
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent 'printer-charge-info' attribute defined in [PWG5100.13].
+
+4.39. printer-charge-info-uri
+
+ ( 1.3.18.0.2.24.46.1.106
+ NAME 'printer-charge-info-uri'
+ DESC 'A URI for a human-readable Web page for paid printing services
+ for this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ For example:
+
+ 'http://example.com/charges'
+
+ See [STD66] for details of URI syntax.
+
+ Note: For compatibility with IPP/1.1 [RFC2911] and [PWG5100.13],
+ values of this attribute SHOULD NOT exceed 1023 octets in length.
+
+
+
+Fleming & McDonald Informational [Page 39]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: LDAP application clients SHOULD NOT attempt to use malformed
+ URI values read from this attribute. LDAP administrative clients
+ SHOULD NOT write malformed URI values into this attribute.
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent 'printer-charge-info-uri' attribute defined in
+ [PWG5100.13].
+
+4.40. printer-geo-location
+
+ ( 1.3.18.0.2.24.46.1.107
+ NAME 'printer-geo-location'
+ DESC 'A geo: URI specifying the geographic location of this Printer.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ SINGLE-VALUE
+ )
+
+ For example:
+
+ 'geo:13.4125,103.8667'
+
+ Values of this attribute MUST conform to the 'geo' URI scheme
+ [RFC5870].
+
+ Note: For compatibility with IPP/1.1 [RFC2911] and [PWG5100.13],
+ values of this attribute SHOULD NOT exceed 1023 octets in length.
+
+ Note: LDAP application clients SHOULD NOT attempt to use malformed
+ URI values read from this attribute. LDAP administrative clients
+ SHOULD NOT write malformed URI values into this attribute.
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent 'printer-geo-location' attribute defined in [PWG5100.13].
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 40]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+4.41. printer-ipp-features-supported
+
+ ( 1.3.18.0.2.24.46.1.108
+ NAME 'printer-ipp-features-supported'
+ DESC 'Comma-delimited list of IPP protocol features that
+ this Printer supports.'
+ EQUALITY caseIgnoreMatch
+ SUBSTR caseIgnoreSubstringsMatch
+ SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
+ )
+
+ For example:
+
+ 'none'
+ 'unknown'
+ 'proof-print'
+ 'ipp-everywhere,proof-print,job-save'
+
+ Note: Length overflow in values of this attribute MUST be handled by
+ multiple instances of this attribute, i.e., individual
+ comma-delimited list members MUST NOT be truncated.
+
+ Values of this attribute SHOULD specify only IANA-registered keywords
+ for the 'ipp-features-supported' attribute defined in [PWG5100.13] or
+ other Standards Track IETF or IEEE-ISTO PWG specifications if this
+ Printer implementation meets all of the IPP feature-specific
+ conformance requirements.
+
+ IANA-registered values include:
+
+ 'none' (No extension features are supported)
+ 'document-object' (Document object defined in [PWG5100.5])
+ 'job-save' (Job save defined in [PWG5100.11])
+ 'ipp-everywhere' ("IPP Everywhere" defined in [PWG5100.14])
+ 'page-overrides' (Page overrides defined in [PWG5100.6])
+ 'proof-print' (Proof print defined in [PWG5100.11])
+ 'subscription-object' (Subscription object defined in [RFC3995])
+
+ Note: The value 'unknown' MUST only be reported if the corresponding
+ IPP Printer attribute is not present, i.e., the value 'unknown' is an
+ artifact of this LDAP mapping.
+
+ Note: The syntax and values for this attribute are aligned with the
+ equivalent 'ipp-features-supported' attribute defined in
+ [PWG5100.13].
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 41]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+5. Definition of Syntaxes
+
+ No new attribute syntaxes are defined by this document.
+
+ The attribute types defined in Section 4 of this document reference
+ syntax OIDs defined in Section 3 of [RFC4517], which are summarized
+ below:
+
+ Syntax OID Syntax Description
+ ------------------------------ -------------------------------
+ 1.3.6.1.4.1.1466.115.121.1.7 Boolean
+ 1.3.6.1.4.1.1466.115.121.1.15 DirectoryString (UTF-8 [STD63])
+ 1.3.6.1.4.1.1466.115.121.1.27 Integer
+
+6. Definition of Matching Rules
+
+ No new matching rules are defined by this document.
+
+ The attribute types defined in Section 4 of this document reference
+ matching rules defined in Section 4 of [RFC4517], which are
+ summarized below:
+
+ Matching Rule OID Matching Rule Name Usage
+ ----------------------------- ------------------ --------
+ 2.5.13.13 booleanMatch EQUALITY
+ 2.5.13.2 caseIgnoreMatch EQUALITY
+ 2.5.13.14 integerMatch EQUALITY
+ 2.5.13.15 integerOrderingMatch ORDERING
+ 2.5.13.4 caseIgnoreSubstringsMatch SUBSTR
+
+7. IANA Considerations
+
+ This document does not define any new syntaxes or matching rules.
+
+ This document defines a few new attribute types that have been
+ registered by IANA per this document (see Section 7.1 below).
+
+ All of the object classes and most of the attribute types described
+ in this document were registered by IANA when RFC 3712 was published
+ (see Section 7.2 below).
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 42]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+7.1. Registration of Attribute Types
+
+ The following Attribute Type OIDs have been assigned by the IEEE-ISTO
+ PWG (see Section 1.3.2) and have been registered by IANA.
+
+ Subject: Request for Object Identifier Descriptor Registration
+
+ Descriptor (short name): see table below
+
+ Object Identifier: see table below
+
+ Person & email address to contact for further information: see below
+
+ Usage: attribute type
+
+ Specification: RFC 7612 (this document)
+
+ Author/Change Controller:
+
+ Ira McDonald
+ High North Inc.
+ 221 Ridge Ave.
+ Grand Marais, MI 49839
+ United States
+ Phone: +1 906-494-2434
+ Email: blueroofmusic@gmail.com
+
+ Comments:
+
+ Attribute Type OID
+ ------------------------------------ ----------------------
+ printer-device-id 1.3.18.0.2.24.46.1.101
+ printer-device-service-count 1.3.18.0.2.24.46.1.102
+ printer-uuid 1.3.18.0.2.24.46.1.104
+ printer-charge-info 1.3.18.0.2.24.46.1.105
+ printer-charge-info-uri 1.3.18.0.2.24.46.1.106
+ printer-geo-location 1.3.18.0.2.24.46.1.107
+ printer-ipp-features-supported 1.3.18.0.2.24.46.1.108
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 43]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+7.2. Object Classes and Attribute Types from RFC 3712
+
+ This section is strictly informative. None of the LDAP OIDs listed
+ in this section have been re-registered by IANA.
+
+ The following Object Class OIDs were assigned by IBM (see
+ Section 1.3.1) and were already registered by IANA when RFC 3712 was
+ published.
+
+ Object Class OID
+ ------------------------------------ ----------------
+ slpServicePrinter 1.3.18.0.2.6.254
+ printerAbstract 1.3.18.0.2.6.258
+ printerService 1.3.18.0.2.6.255
+ printerServiceAuxClass 1.3.18.0.2.6.257
+ printerIPP 1.3.18.0.2.6.256
+ printerLPR 1.3.18.0.2.6.253
+
+ The following Attribute Type OIDs were assigned by IBM (see
+ Section 1.3.1) and were already registered by IANA when RFC 3712 was
+ published.
+
+ Attribute Type OID
+ ------------------------------------ -----------------
+ printer-uri 1.3.18.0.2.4.1140
+ printer-xri-supported 1.3.18.0.2.4.1107
+ printer-name 1.3.18.0.2.4.1135
+ printer-natural-language-configured 1.3.18.0.2.4.1119
+ printer-location 1.3.18.0.2.4.1136
+ printer-info 1.3.18.0.2.4.1139
+ printer-more-info 1.3.18.0.2.4.1134
+ printer-make-and-model 1.3.18.0.2.4.1138
+ printer-ipp-versions-supported 1.3.18.0.2.4.1133
+ printer-multiple-document-jobs-supported 1.3.18.0.2.4.1132
+ printer-charset-configured 1.3.18.0.2.4.1109
+ printer-charset-supported 1.3.18.0.2.4.1131
+ printer-generated-natural-language-supported 1.3.18.0.2.4.1137
+ printer-document-format-supported 1.3.18.0.2.4.1130
+ printer-color-supported 1.3.18.0.2.4.1129
+ printer-compression-supported 1.3.18.0.2.4.1128
+ printer-pages-per-minute 1.3.18.0.2.4.1127
+ printer-pages-per-minute-color 1.3.18.0.2.4.1126
+ printer-finishings-supported 1.3.18.0.2.4.1125
+ printer-number-up-supported 1.3.18.0.2.4.1124
+ printer-sides-supported 1.3.18.0.2.4.1123
+ printer-media-supported 1.3.18.0.2.4.1122
+ printer-media-local-supported 1.3.18.0.2.4.1117
+ printer-resolution-supported 1.3.18.0.2.4.1121
+
+
+
+Fleming & McDonald Informational [Page 44]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ printer-print-quality-supported 1.3.18.0.2.4.1120
+ printer-job-priority-supported 1.3.18.0.2.4.1110
+ printer-copies-supported 1.3.18.0.2.4.1118
+ printer-job-k-octets-supported 1.3.18.0.2.4.1111
+ printer-current-operator 1.3.18.0.2.4.1112
+ printer-service-person 1.3.18.0.2.4.1113
+ printer-delivery-orientation-supported 1.3.18.0.2.4.1114
+ printer-stacking-order-supported 1.3.18.0.2.4.1115
+ printer-output-features-supported 1.3.18.0.2.4.1116
+ printer-aliases 1.3.18.0.2.4.1108
+
+8. Internationalization Considerations
+
+ All text string attributes defined in this document of syntax
+ 'DirectoryString' [RFC4517] have values that are encoded in UTF-8
+ [STD63], as required by [RFC4517].
+
+ A language tag [BCP47] for all of the text string attributes defined
+ in this document is contained in the
+ printer-natural-language-configured attribute.
+
+ Therefore, all object classes defined in this document conform to the
+ IETF Policy on Character Sets and Languages [BCP18].
+
+ Note: For interoperability and consistent text display, values of
+ attributes defined in this document (a) SHOULD be normalized as
+ recommended in "Unicode Format for Network Interchange" [RFC5198];
+ (b) SHOULD NOT contain DEL or any C0 or C1 control characters except
+ for HT, CR, and LF; (c) SHOULD only contain CR and LF characters
+ together (not as singletons); and (d) SHOULD NOT contain HT, CR, or
+ LF characters in names, e.g., printer-name and printer-aliases.
+
+9. Security Considerations
+
+ See [RFC4513] for detailed guidance on authentication methods for
+ LDAP and the use of TLS/1.2 [RFC5246] to supply connection
+ confidentiality and data integrity for LDAP sessions.
+
+ As with any LDAP schema, it is important to protect specific entries
+ and attributes with the appropriate access control. It is
+ particularly important that only administrators can modify entries
+ defined in this LDAP Printer schema. Otherwise, an LDAP client might
+ be fooled into diverting print service requests from the original
+ Printer (or spooler) to a malicious intruder's host system, thus
+ exposing the information in printed documents.
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 45]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ Note: Security vulnerabilities can arise if DEL or any C0 or C1
+ control characters are included in names, e.g., printer-name or
+ printer-aliases.
+
+ For additional security considerations regarding deploying Printers
+ in an IPP environment, see Section 8 of [RFC2911].
+
+10. References
+
+10.1. Normative References
+
+ [BCP47] Phillips, A. and M. Davis, "Matching of Language Tags",
+ BCP 47, RFC 4647, September 2006.
+
+ Phillips, A., Ed., and M. Davis, Ed., "Tags for
+ Identifying Languages", BCP 47, RFC 5646,
+ September 2009.
+
+ <http://www.rfc-editor.org/info/bcp47>
+
+ [IANACHAR] Internet Assigned Numbers Authority (IANA) registry
+ "Character Sets",
+ <http://www.iana.org/assignments/character-sets>.
+
+ [IANAIPP] Internet Assigned Numbers Authority (IANA) registry
+ "Internet Printing Protocol (IPP) Registrations",
+ <http://www.iana.org/assignments/ipp-registrations>.
+
+ [IANAMIME] Internet Assigned Numbers Authority (IANA) registry
+ "Media Types", <http://www.iana.org/assignments/
+ media-types/index.html>.
+
+ [PWG5100.5] Carney, D., Hastings, T., and P. Zehler, "IPP Document
+ Object", PWG 5100.5-2003, October 2003,
+ <http://www.pwg.org/standards.html>.
+
+ [PWG5100.6] Zehler, P., Herriot, R., and K. Ocke, "IPP Page
+ Overrides", PWG 5100.6-2003, October 2003,
+ <http://www.pwg.org/standards.html>.
+
+ [PWG5100.11] Hastings, T. and D. Fullman, "IPP Job and Printer
+ Extensions - Set 2 (JPS2)", PWG 5100.11-2010,
+ October 2010, <http://www.pwg.org/standards.html>.
+
+ [PWG5100.12] Bergman, R., Lewis, H., McDonald, I., and M. Sweet, "IPP
+ Version 2.0 Second Edition (IPP/2.0 SE)",
+ PWG 5100.12-2011, February 2011,
+ <http://www.pwg.org/standards.html>.
+
+
+
+Fleming & McDonald Informational [Page 46]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ [PWG5100.13] Sweet, M., McDonald, I., and P. Zehler, "IPP Job and
+ Printer Extensions - Set 3 (JPS3)", PWG 5100.13-2012,
+ July 2012, <http://www.pwg.org/standards.html>.
+
+ [PWG5100.14] Sweet, M., McDonald, I., Mitchell, A., and J. Hutchings,
+ "IPP Everywhere", PWG 5100.14-2013, January 2013,
+ <http://www.pwg.org/standards.html>.
+
+ [PWG5101.1] Sweet, M., Bergman, R., and T. Hastings, "PWG Media
+ Standardized Names 2.0 (MSN2)", PWG 5101.1-2013,
+ March 2013, <http://www.pwg.org/standards.html>.
+
+ [PWG5107.2] McDonald, I., "PWG Command Set Format for IEEE 1284
+ Device ID v1.0", PWG 5107.2-2010, May 2010,
+ <http://www.pwg.org/standards.html>.
+
+ [RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
+ Requirement Levels", BCP 14, RFC 2119,
+ DOI 10.17487/RFC2119, March 1997,
+ <http://www.rfc-editor.org/info/rfc2119>.
+
+ [RFC2617] Franks, J., Hallam-Baker, P., Hostetler, J., Lawrence,
+ S., Leach, P., Luotonen, A., and L. Stewart, "HTTP
+ Authentication: Basic and Digest Access Authentication",
+ RFC 2617, DOI 10.17487/RFC2617, June 1999,
+ <http://www.rfc-editor.org/info/rfc2617>.
+
+ [RFC2707] Bergman, R., Hastings, T., Isaacson, S., and H. Lewis,
+ "Job Monitoring MIB - V1.0", RFC 2707,
+ DOI 10.17487/RFC2707, November 1999,
+ <http://www.rfc-editor.org/info/rfc2707>.
+
+ [RFC2911] Hastings, T., Ed., Herriot, R., deBry, R., Isaacson, S.,
+ and P. Powell, "Internet Printing Protocol/1.1: Model
+ and Semantics", RFC 2911, DOI 10.17487/RFC2911,
+ September 2000,
+ <http://www.rfc-editor.org/info/rfc2911>.
+
+ [RFC2926] Kempf, J., Moats, R., and P. St. Pierre, "Conversion of
+ LDAP Schemas to and from SLP Templates", RFC 2926,
+ DOI 10.17487/RFC2926, September 2000,
+ <http://www.rfc-editor.org/info/rfc2926>.
+
+ [RFC3510] Herriot, R. and I. McDonald, "Internet Printing
+ Protocol/1.1: IPP URL Scheme", RFC 3510,
+ DOI 10.17487/RFC3510, April 2003,
+ <http://www.rfc-editor.org/info/rfc3510>.
+
+
+
+
+Fleming & McDonald Informational [Page 47]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ [RFC3805] Bergman, R., Lewis, H., and I. McDonald, "Printer
+ MIB v2", RFC 3805, DOI 10.17487/RFC3805, June 2004,
+ <http://www.rfc-editor.org/info/rfc3805>.
+
+ [RFC3987] Duerst, M. and M. Suignard, "Internationalized Resource
+ Identifiers (IRIs)", RFC 3987, DOI 10.17487/RFC3987,
+ January 2005, <http://www.rfc-editor.org/info/rfc3987>.
+
+ [RFC3995] Herriot, R. and T. Hastings, "Internet Printing Protocol
+ (IPP): Event Notifications and Subscriptions", RFC 3995,
+ DOI 10.17487/RFC3995, March 2005,
+ <http://www.rfc-editor.org/info/rfc3995>.
+
+ [RFC4122] Leach, P., Mealling, M., and R. Salz, "A Universally
+ Unique IDentifier (UUID) URN Namespace", RFC 4122,
+ DOI 10.17487/RFC4122, July 2005,
+ <http://www.rfc-editor.org/info/rfc4122>.
+
+ [RFC4510] Zeilenga, K., Ed., "Lightweight Directory Access
+ Protocol (LDAP): Technical Specification Road Map",
+ RFC 4510, DOI 10.17487/RFC4510, June 2006,
+ <http://www.rfc-editor.org/info/rfc4510>.
+
+ [RFC4513] Harrison, R., Ed., "Lightweight Directory Access
+ Protocol (LDAP): Authentication Methods and Security
+ Mechanisms", RFC 4513, DOI 10.17487/RFC4513, June 2006,
+ <http://www.rfc-editor.org/info/rfc4513>.
+
+ [RFC4517] Legg, S., Ed., "Lightweight Directory Access Protocol
+ (LDAP): Syntaxes and Matching Rules", RFC 4517,
+ DOI 10.17487/RFC4517, June 2006,
+ <http://www.rfc-editor.org/info/rfc4517>.
+
+ [RFC4524] Zeilenga, K., Ed., "COSINE LDAP/X.500 Schema", RFC 4524,
+ DOI 10.17487/RFC4524, June 2006,
+ <http://www.rfc-editor.org/info/rfc4524>.
+
+ [RFC5198] Klensin, J. and M. Padlipsky, "Unicode Format for
+ Network Interchange", RFC 5198, DOI 10.17487/RFC5198,
+ March 2008, <http://www.rfc-editor.org/info/rfc5198>.
+
+ [RFC5246] Dierks, T. and E. Rescorla, "The Transport Layer
+ Security (TLS) Protocol Version 1.2", RFC 5246,
+ DOI 10.17487/RFC5246, August 2008,
+ <http://www.rfc-editor.org/info/rfc5246>.
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 48]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ [RFC5280] Cooper, D., Santesson, S., Farrell, S., Boeyen, S.,
+ Housley, R., and W. Polk, "Internet X.509 Public Key
+ Infrastructure Certificate and Certificate Revocation
+ List (CRL) Profile", RFC 5280, DOI 10.17487/RFC5280,
+ May 2008, <http://www.rfc-editor.org/info/rfc5280>.
+
+ [RFC5870] Mayrhofer, A. and C. Spanring, "A Uniform Resource
+ Identifier for Geographic Locations ('geo' URI)",
+ RFC 5870, DOI 10.17487/RFC5870, June 2010,
+ <http://www.rfc-editor.org/info/rfc5870>.
+
+ [RFC6818] Yee, P., "Updates to the Internet X.509 Public Key
+ Infrastructure Certificate and Certificate Revocation
+ List (CRL) Profile", RFC 6818, DOI 10.17487/RFC6818,
+ January 2013, <http://www.rfc-editor.org/info/rfc6818>.
+
+ [RFC7235] Fielding, R., Ed., and J. Reschke, Ed., "Hypertext
+ Transfer Protocol (HTTP/1.1): Authentication", RFC 7235,
+ DOI 10.17487/RFC7235, June 2014,
+ <http://www.rfc-editor.org/info/rfc7235>.
+
+ [RFC7472] McDonald, I. and M. Sweet, "Internet Printing Protocol
+ (IPP) over HTTPS Transport Binding and the 'ipps' URI
+ Scheme", RFC 7472, DOI 10.17487/RFC7472, March 2015,
+ <http://www.rfc-editor.org/info/rfc7472>.
+
+ [STD63] Yergeau, F., "UTF-8, a transformation format of ISO
+ 10646", STD 63, RFC 3629, November 2003,
+ <http://www.rfc-editor.org/info/std63>.
+
+ [STD66] Berners-Lee, T., Fielding, R., and L. Masinter, "Uniform
+ Resource Identifier (URI): Generic Syntax", STD 66, RFC
+ 3986, January 2005,
+ <http://www.rfc-editor.org/info/std66>.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 49]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+10.2. Informative References
+
+ [BCP13] Freed, N. and J. Klensin, "Multipurpose Internet Mail
+ Extensions (MIME) Part Four: Registration Procedures",
+ BCP 13, RFC 4289, December 2005.
+
+ Freed, N., Klensin, J., and T. Hansen, "Media Type
+ Specifications and Registration Procedures", BCP 13,
+ RFC 6838, January 2013.
+
+ <http://www.rfc-editor.org/info/bcp13>
+
+ [BCP18] Alvestrand, H., "IETF Policy on Character Sets and
+ Languages", BCP 18, RFC 2277, January 1998,
+ <http://www.rfc-editor.org/info/bcp18>.
+
+ [BCP19] Freed, N. and J. Postel, "IANA Charset Registration
+ Procedures", BCP 19, RFC 2978, October 2000,
+ <http://www.rfc-editor.org/info/bcp19>.
+
+ [RFC1179] McLaughlin, L., "Line printer daemon protocol",
+ RFC 1179, DOI 10.17487/RFC1179, August 1990,
+ <http://www.rfc-editor.org/info/rfc1179>.
+
+ [RFC1951] Deutsch, P., "DEFLATE Compressed Data Format
+ Specification version 1.3", RFC 1951,
+ DOI 10.17487/RFC1951, May 1996,
+ <http://www.rfc-editor.org/info/rfc1951>.
+
+ [RFC1952] Deutsch, P., "GZIP file format specification
+ version 4.3", RFC 1952, DOI 10.17487/RFC1952, May 1996,
+ <http://www.rfc-editor.org/info/rfc1952>.
+
+ [RFC1977] Schryver, V., "PPP BSD Compression Protocol", RFC 1977,
+ DOI 10.17487/RFC1977, August 1996,
+ <http://www.rfc-editor.org/info/rfc1977>.
+
+ [RFC2079] Smith, M., "Definition of an X.500 Attribute Type and an
+ Object Class to Hold Uniform Resource Identifiers
+ (URIs)", RFC 2079, DOI 10.17487/RFC2079, January 1997,
+ <http://www.rfc-editor.org/info/rfc2079>.
+
+ [RFC2566] deBry, R., Hastings, T., Herriot, R., Isaacson, S., and
+ P. Powell, "Internet Printing Protocol/1.0: Model and
+ Semantics", RFC 2566, DOI 10.17487/RFC2566, April 1999,
+ <http://www.rfc-editor.org/info/rfc2566>.
+
+
+
+
+
+Fleming & McDonald Informational [Page 50]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ [RFC2608] Guttman, E., Perkins, C., Veizades, J., and M. Day,
+ "Service Location Protocol, Version 2", RFC 2608,
+ DOI 10.17487/RFC2608, June 1999,
+ <http://www.rfc-editor.org/info/rfc2608>.
+
+ [RFC3712] Fleming, P. and I. McDonald, "Lightweight Directory
+ Access Protocol (LDAP): Schema for Printer Services",
+ RFC 3712, DOI 10.17487/RFC3712, February 2004,
+ <http://www.rfc-editor.org/info/rfc3712>.
+
+ [RFC4559] Jaganathan, K., Zhu, L., and J. Brezak, "SPNEGO-based
+ Kerberos and NTLM HTTP Authentication in Microsoft
+ Windows", RFC 4559, DOI 10.17487/RFC4559, June 2006,
+ <http://www.rfc-editor.org/info/rfc4559>.
+
+ [SLPPRT20] IANA, "Service Location Protocol, Version 2 (SLPv2)
+ Templates",
+ <http://www.iana.org/assignments/svrloc-templates>.
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 51]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+Appendix A. Changes since RFC 3712
+
+ 1) Added many editorial corrections and clarifications
+
+ - corrected typos, missing words, and ambiguous sentences;
+
+ - replaced lowercase 'printer' with titlecase 'Printer' for
+ readability and consistency with IETF and IEEE-ISTO PWG IPP
+ standards usage;
+
+ - added implementation notes;
+
+ - updated and added references.
+
+ 2) Deleted length restrictions from formal definitions of
+ DirectoryString syntax attributes
+
+ - replaced with notes recommending length restrictions for
+ compatibility with existing implementations of [RFC3712] and
+ underlying string length limits in [RFC2707], [RFC2911],
+ [RFC3805], [PWG5107.2], [PWG5100.13], and [PWG5100.14].
+
+ 3) Added new Printer attributes defined in [PWG5107.2], [PWG5100.13],
+ and [PWG5100.14] (see Section 7.1)
+
+ - updated the table of Printer attributes and source documents in
+ Section 4 ("Definition of Attribute Types");
+
+ - added support for IEEE-ISTO PWG "IPP Everywhere" [PWG5100.14]
+ project.
+
+ 4) Added implementation note to Section 4 about string encodings
+
+ - added discussion of 'List of xxx' and 'One of xxx' encodings;
+
+ - stated that any of these attributes can be represented as
+ multiple instances (i.e., to avoid length overflow).
+
+ 5) Improved comma-delimited examples of string attributes
+
+ - added both single-valued and multi-valued examples.
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 52]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+ 6) Clarified use of printer-xri-supported and
+ printer-resolution-supported attributes, and their corresponding
+ field delimiters
+
+ - added note in Section 4 ("Definition of Attribute Types") to
+ explain the origin of the different field delimiters;
+
+ - added examples to show optional *trailing* whitespace after '<'
+ delimiters in printer-xri-supported;
+
+ - added examples to show optional *trailing* whitespace after '>'
+ delimiters in printer-resolution-supported.
+
+ 7) Clarified Section 8 ("Internationalization Considerations")
+
+ - added note about Net-Unicode [RFC5198] and avoiding use of C0
+ and C1 control characters.
+
+ 8) Clarified Section 9 ("Security Considerations")
+
+ - added note about security vulnerabilities caused by use of DEL
+ or any C0 or C1 control characters in names.
+
+ 9) Clarified terms and abbreviations
+
+ - renamed Section 2 ("Conventions Used in This Document");
+
+ - added Section 2.1 ("Requirements Language");
+
+ - added Section 2.2 ("LDAP Schema Descriptions");
+
+ - added Section 2.3 ("Abbreviations").
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+Fleming & McDonald Informational [Page 53]
+
+RFC 7612 LDAP Schema for Printer Services June 2015
+
+
+Acknowledgments
+
+ The authors wish to acknowledge significant contributions from Ken
+ Jones and Harry Lewis and excellent comments from Patrik Faltstrom,
+ Ryan Moats, Robert Moore, Lee Rafalow, Kimberly Reger, and Kurt
+ Zeilenga during the development of the original LDAP Printer schema
+ [RFC3712].
+
+ The authors wish to acknowledge excellent comments from Nevil
+ Brownlee, Barry Leiba, Alexey Melnikov, Tom Petch, and Mike Sweet
+ during the development of this current version of the LDAP Printer
+ schema.
+
+ Thanks to the members of the IEEE-ISTO PWG IPP Working Group, for
+ their review comments and help in preparing this document.
+
+Authors' Addresses
+
+ Pat Fleming
+ Independent
+ 51796 171 Ave.
+ Pine Island, MN 55963
+ United States
+
+ Phone: +1 507-356-8277
+ Email: patfleminghtc@gmail.com
+
+
+ Ira McDonald
+ High North Inc.
+ 221 Ridge Ave.
+ Grand Marais, MI 49839
+ United States
+
+ Phone: +1 906-494-2434
+ Email: blueroofmusic@gmail.com
+
+
+
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+Fleming & McDonald Informational [Page 54]
+