Requirements for Labeled NFS
draft-ietf-nfsv4-labreqs-04

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Last updated 2013-11-21 (latest revision 2013-08-04)
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NFSv4                                                          T. Haynes
Internet-Draft                                                    NetApp
Intended status: Informational                           August 04, 2013
Expires: February 5, 2014

                      Requirements for Labeled NFS
                    draft-ietf-nfsv4-labreqs-04.txt

Abstract

   This memo outlines high-level requirements for the integration of
   flexible Mandatory Access Control (MAC) functionality into the
   Network File System (NFS) version 4.2 (NFSv4.2).  It describes the
   level of protections that should be provided over protocol components
   and the basic structure of the proposed system.  The intent here is
   not to present the protocol changes, but to describe the environment
   in which they reside.

Status of this Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on February 5, 2014.

Copyright Notice

   Copyright (c) 2013 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
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   include Simplified BSD License text as described in Section 4.e of

Haynes                  Expires February 5, 2014                [Page 1]
Internet-Draft                ReqLabledNFS                   August 2013

   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction . . . . . . . . . . . . . . . . . . . . . . . . .  4
   2.  Definitions  . . . . . . . . . . . . . . . . . . . . . . . . .  4
     2.1.  Requirements Language  . . . . . . . . . . . . . . . . . .  5
   3.  Requirements . . . . . . . . . . . . . . . . . . . . . . . . .  5
     3.1.  General  . . . . . . . . . . . . . . . . . . . . . . . . .  5
     3.2.  Security Services  . . . . . . . . . . . . . . . . . . . .  6
     3.3.  Label Encoding, Label Format Specifiers, and Label
           Checking Authorities . . . . . . . . . . . . . . . . . . .  6
     3.4.  Labeling . . . . . . . . . . . . . . . . . . . . . . . . .  7
       3.4.1.  Client Labeling  . . . . . . . . . . . . . . . . . . .  7
       3.4.2.  Server Labeling  . . . . . . . . . . . . . . . . . . .  8
     3.5.  Policy Enforcement . . . . . . . . . . . . . . . . . . . .  8
       3.5.1.  Client Enforcement . . . . . . . . . . . . . . . . . .  8
       3.5.2.  Server Enforcement . . . . . . . . . . . . . . . . . .  9
     3.6.  Namespace Access . . . . . . . . . . . . . . . . . . . . .  9
     3.7.  Upgrading Existing Server  . . . . . . . . . . . . . . . .  9
   4.  Modes of Operation . . . . . . . . . . . . . . . . . . . . . . 10
     4.1.  Full Mode  . . . . . . . . . . . . . . . . . . . . . . . . 10
     4.2.  Limited Server Mode  . . . . . . . . . . . . . . . . . . . 11
     4.3.  Guest Mode . . . . . . . . . . . . . . . . . . . . . . . . 11
   5.  Use Cases  . . . . . . . . . . . . . . . . . . . . . . . . . . 11
     5.1.  Full MAC labeling support for remotely mounted
           filesystems  . . . . . . . . . . . . . . . . . . . . . . . 12
     5.2.  MAC labeling of virtual machine images stored on the
           network  . . . . . . . . . . . . . . . . . . . . . . . . . 12
     5.3.  International Traffic in Arms Regulations (ITAR) . . . . . 12
     5.4.  Legal Hold/eDiscovery  . . . . . . . . . . . . . . . . . . 13
     5.5.  Simple security label storage  . . . . . . . . . . . . . . 13
     5.6.  Diskless Linux . . . . . . . . . . . . . . . . . . . . . . 14
     5.7.  Multi-Level Security . . . . . . . . . . . . . . . . . . . 14
       5.7.1.  Full Mode - MAC-functional Client and Server . . . . . 15
       5.7.2.  MAC-Functional Client  . . . . . . . . . . . . . . . . 15
       5.7.3.  MAC-Functional Server  . . . . . . . . . . . . . . . . 16
   6.  Security Considerations  . . . . . . . . . . . . . . . . . . . 16
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