NETWORK WORKING GROUP                                        N. Williams
Internet-Draft                                                       Sun
Expires: August 28, 2008                               February 25, 2008


     Namespace Considerations and Registries for GSS-API Extensions
            draft-ietf-kitten-gssapi-extensions-iana-02.txt

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Copyright Notice

   Copyright (C) The IETF Trust (2008).

Abstract

   This document describes the ways in which the GSS-API may be extended
   and directs the creation of IANA registries for various GSS-API
   namespaces.









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Table of Contents

   1.  Conventions used in this document . . . . . . . . . . . . . . . 3
   2.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . . . 3
   3.  Extensions to the GSS-API . . . . . . . . . . . . . . . . . . . 3
   4.  Generic GSS-API Namespaces  . . . . . . . . . . . . . . . . . . 3
   5.  Language Binding-Specific GSS-API Namespaces  . . . . . . . . . 4
   6.  Extension-Specific GSS-API Namespaces . . . . . . . . . . . . . 4
   7.  Registration Form(s)  . . . . . . . . . . . . . . . . . . . . . 4
   8.  Initial Namespace Registrations . . . . . . . . . . . . . . . . 6
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 6
   10. Security Considerations . . . . . . . . . . . . . . . . . . . . 7
   11. Normative References  . . . . . . . . . . . . . . . . . . . . . 7
       Author's Address  . . . . . . . . . . . . . . . . . . . . . . . 7
       Intellectual Property and Copyright Statements  . . . . . . . . 8




































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1.  Conventions used in this document

   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.  Introduction

   There is a need for generic and mechanism-specific extensions to the
   Generic Security Services Application Programming Interface (GSS-
   API).  As such extensions are designed and standardized, both at the
   IETF and elsewhere, there is a non-trivial risk of namespace
   pollution and conflicts.  To avoid this we set out guidelines for
   extending the GSS-API and create IANA registries of GSS-API
   namespaces.

   Registrations of individual items and sub-namespaces are allowed.
   Each sub-namespace may provide different rules for registration,
   e.g., for mechanism-specific and private-use extensions.  All
   Standards-Track uses of the GSS-API namespaces will be registered
   directly with the IANA subsequent to the create of the registries or
   when the document is published.


3.  Extensions to the GSS-API

   Extensions to the GSS-API can be categorized as follows:
   o  Abstract API extensions
   o  Implementation-specific
   o  Mechanism-specific
   o  Language binding-specific

   Extensions to the GSS-API may be purely semantic, without effect on
   the GSS-API's namespaces.  Or they may introduce new functions,
   constants, types, etc...; these clearly affect the GSS-API
   namespaces.

   Extensions that affect the GSS-API namespaces should be registered
   with the IANA as described herein.


4.  Generic GSS-API Namespaces

   The abstract API namespaces for the GSS-API are:
   o  Type names
   o  Function names
   o  Constant names for each type



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   o  Constant values for each type
   o  Name types (OID, type name and syntaxes)

   Additionally we have namespaces associates with the OBJECT IDENTIFIER
   (OID) type:
   o  Mechanism OIDs
   o  Name Type OIDs


5.  Language Binding-Specific GSS-API Namespaces

   Language binding specific namespaces include:
   o  Header/interface module names
   o  Object classes and/or types
   o  Methods and/or functions
   o  Constant names
   o  Constant values


6.  Extension-Specific GSS-API Namespaces

   Extensions to the GSS-API may create additional namespaces.
   Instructions to the IANA should included for the handling of such
   namespaces.


7.  Registration Form(s)

   Registrations for GSS-API namespaces SHALL take the following form:

   +----------------+----------------------------+---------------------+
   | Registration   | Possible Values            | Description         |
   | Field          |                            |                     |
   +----------------+----------------------------+---------------------+
   | Registration   | 'Instance',                | Indicates whether   |
   | type           | 'Sub-Namespace'            | this entry reserves |
   |                |                            | a given symbol name |
   |                |                            | or constant value   |
   |                |                            | or whether it       |
   |                |                            | reserves an entire  |
   |                |                            | sub-namespace (the  |
   |                |                            | name is a "prefix") |
   |                |                            | or constant value   |
   |                |                            | range.              |
   +----------------+----------------------------+---------------------+
   | Bindings       | 'Generic', 'C-bindings',   | Indicates the       |
   |                | 'Java', 'C#', <programming | language bindings   |
   |                | language name>             | that this           |



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   |                |                            | registration is     |
   |                |                            | for, or, if         |
   |                |                            | 'Generic', that     |
   |                |                            | this is an entry    |
   |                |                            | for the generic     |
   |                |                            | GSS-API, not        |
   |                |                            | specific to any     |
   |                |                            | programming         |
   |                |                            | language.           |
   +----------------+----------------------------+---------------------+
   | Object Type    | 'Data-Type', 'Function',   | Indicates the type  |
   |                | 'Method', 'Integer',       | of the object(s)    |
   |                | 'String', 'OID', 'Context  | whose symbolic name |
   |                | Flag', 'Name Type'         | or constant value   |
   |                |                            | this entry          |
   |                |                            | registers.          |
   +----------------+----------------------------+---------------------+
   | Symbol         | <Symbol name or name       | The name(s) of      |
   | Name/Prefix    | prefix>                    | symbols or values   |
   |                |                            | being registered.   |
   +----------------+----------------------------+---------------------+
   | Binding of     | <Name of abstract API      | If the registration |
   |                | element of which this      | is for a specific   |
   |                | object is a binding>       | language binding of |
   |                |                            | the GSS-API, then   |
   |                |                            | this names the      |
   |                |                            | abstract API        |
   |                |                            | element of which it |
   |                |                            | is a binding        |
   |                |                            | (OPTIONAL).         |
   +----------------+----------------------------+---------------------+
   | Constant       | <Constant value> or        | The value(s)        |
   | Value/Range(s) | <constant value range>     | registered          |
   |                |                            | (OPTIONAL).         |
   +----------------+----------------------------+---------------------+
   | Description    | <Text>                     | Description of      |
   |                |                            | object(s) being     |
   |                |                            | registered.         |
   +----------------+----------------------------+---------------------+
   | Registration   | 'Protocol Action', 'Expert | Describes the rules |
   | Rules          | Review',                   | for allocation of   |
   |                | 'First-Come-First-Served', | items that fall in  |
   |                | 'Closed-For-Registrations' | this sub-namespace, |
   |                |                            | if this entry is    |
   |                |                            | for a sub-namespace |
   |                |                            | (OPTIONAL).         |
   +----------------+----------------------------+---------------------+
   | Reference      | <Reference>                | Reference to        |



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   |                |                            | document that       |
   |                |                            | describes the       |
   |                |                            | object(s) being     |
   |                |                            | registered.         |
   +----------------+----------------------------+---------------------+
   | Expert         | <Name of expert reviewers, |                     |
   | Reviewer(s)    | possibly WG names>         |                     |
   +----------------+----------------------------+---------------------+
   | Status         | 'Standards-Track',         | Status of the       |
   |                | 'Informational',           | registration.       |
   |                | 'Experimental',            |                     |
   |                | 'Obsolete', 'Other'        |                     |
   +----------------+----------------------------+---------------------+

   The IANA should create a single GSS-API namespace registry, or
   multiple registries, one for symbolic names and one for constant
   values, or it may create a registry per-programming language, at its
   convenience.

   Entries in these registries should consist of all the fields from
   their corresponding registration entries.

   Entries should be sorted by object type, progamming language, symbol
   name.

   <Add text on guidelines for IANA consideration of registration
   applications, particularly with respect to entries lacking normative
   references, "magic" entries (e.g., special values of 'time' types
   which indicate something other than absolute or relative time, such
   as GSS_C_INDEFINITE), expert review requirements (if any) for
   registrations lacking normative references, etc....>


8.  Initial Namespace Registrations

   <Add registration entries for namespaces (name prefixes) for RFC2743/
   RFC2744/RFC2853.>

   <Add registration entries for private namespaces (name prefixes) for
   implementation- and/or platform-specific extensions.>


9.  IANA Considerations

   This document deals with IANA considerations throughout.
   Specifically it creates a single registry of various kinds of things,
   thought the IANA may instead create multiple registries each for one
   of those kinds of things.  Of particular interest may be that IANA



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   will now be the registration authority for the GSS-API name type OID
   space.


10.  Security Considerations

   This document has no security considerations.


11.  Normative References

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2743]  Linn, J., "Generic Security Service Application Program
              Interface Version 2, Update 1", RFC 2743, January 2000.

   [RFC2744]  Wray, J., "Generic Security Service API Version 2 :
              C-bindings", RFC 2744, January 2000.


Author's Address

   Nicolas Williams
   Sun Microsystems
   5300 Riata Trace Ct
   Austin, TX  78727
   US

   Email: Nicolas.Williams@sun.com





















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