snmp-view-based-acm-mib.txt

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SNMP-VIEW-BASED-ACM-MIB DEFINITIONS ::= BEGIN

IMPORTS
    MODULE-COMPLIANCE, OBJECT-GROUP       FROM SNMPv2-CONF
    MODULE-IDENTITY, OBJECT-TYPE,
    snmpModules                           FROM SNMPv2-SMI
    TestAndIncr,
    RowStatus, StorageType                FROM SNMPv2-TC
    SnmpAdminString,
    SnmpSecurityLevel,
    SnmpSecurityModel                     FROM SNMP-FRAMEWORK-MIB;

snmpVacmMIB       MODULE-IDENTITY
    LAST-UPDATED "9901200000Z"            -- 20 Jan 1999, midnight
    ORGANIZATION "SNMPv3 Working Group"
    CONTACT-INFO "WG-email:   [e-mail]
                  Subscribe:  [e-mail]
                              In message body:  subscribe snmpv3

                  Chair:      Russ Mundy
                              Trusted Information Systems
                  postal:     3060 Washington Rd
                              Glenwood MD 21738
                              USA
                  email:      [e-mail]
                  phone:      [phone]

                  Co-editor:  Bert Wijnen
                              IBM T.J. Watson Research
                  postal:     Schagen 33
                              3461 GL Linschoten
                              Netherlands
                  email:      [e-mail]
                  phone:      [phone]

                  Co-editor:  Randy Presuhn
                              BMC Software, Inc
                  postal:     965 Stewart Drive
                              Sunnyvale, CA 94086
                              USA
                  email:      [e-mail]
                  phone:      [phone]

                  Co-editor:  Keith McCloghrie
                              Cisco Systems, Inc.
                  postal:     170 West Tasman Drive
                              San Jose, CA  95134-1706
                              USA
                  email:      [e-mail]
                  phone:      [phone]
                 "
    DESCRIPTION  "The management information definitions for the
                  View-based Access Control Model for SNMP.
                 "
--  Revision history
    REVISION     "9901200000Z"            -- 20 Jan 1999, midnight
    DESCRIPTION  "Clarifications, published as RFC2575"

    REVISION     "9711200000Z"            -- 20 Nov 1997, midnight
    DESCRIPTION  "Initial version, published as RFC2275"
    ::= { snmpModules 16 }

-- Administrative assignments ****************************************

vacmMIBObjects      OBJECT IDENTIFIER ::= { snmpVacmMIB 1 }
vacmMIBConformance  OBJECT IDENTIFIER ::= { snmpVacmMIB 2 }

-- Information about Local Contexts **********************************

vacmContextTable OBJECT-TYPE
    SYNTAX       SEQUENCE OF VacmContextEntry
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION "The table of locally available contexts.

                 This table provides information to SNMP Command
                 Generator applications so that they can properly
                 configure the vacmAccessTable to control access to
                 all contexts at the SNMP entity.

                 This table may change dynamically if the SNMP entity
                 allows that contexts are added/deleted dynamically
                 (for instance when its configuration changes). Such
                 changes would happen only if the management
                 instrumentation at that SNMP entity recognizes more
                 (or fewer) contexts.

                 The presence of entries in this table and of entries
                 in the vacmAccessTable are independent.  That is, a
                 context identified by an entry in this table is not
                 necessarily referenced by any entries in the
                 vacmAccessTable; and the context(s) referenced by an
                 entry in the vacmAccessTable does not necessarily
                 currently exist and thus need not be identified by an
                 entry in this table.

                 This table must be made accessible via the default
                 context so that Command Responder applications have
                 a standard way of retrieving the information.

                 This table is read-only. It cannot be configured via
                 SNMP.
                "
    ::= { vacmMIBObjects 1 }

vacmContextEntry OBJECT-TYPE
    SYNTAX       VacmContextEntry
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION "Information about a particular context."
    INDEX       {
                  vacmContextName
                }
    ::= { vacmContextTable 1 }

VacmContextEntry ::= SEQUENCE
    {
        vacmContextName SnmpAdminString
    }

vacmContextName  OBJECT-TYPE
    SYNTAX       SnmpAdminString (SIZE(0..32))
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION "A human readable name identifying a particular
                 context at a particular SNMP entity.

                 The empty contextName (zero length) represents the
                 default context.
                "
    ::= { vacmContextEntry 1 }

-- Information about Groups ******************************************

vacmSecurityToGroupTable OBJECT-TYPE
    SYNTAX       SEQUENCE OF VacmSecurityToGroupEntry
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION "This table maps a combination of securityModel and
                 securityName into a groupName which is used to define
                 an access control policy for a group of principals.
                "
    ::= { vacmMIBObjects 2 }

vacmSecurityToGroupEntry OBJECT-TYPE
    SYNTAX       VacmSecurityToGroupEntry
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION "An entry in this table maps the combination of a
                 securityModel and securityName into a groupName.
                "
    INDEX       {
                  vacmSecurityModel,
                  vacmSecurityName
                }
    ::= { vacmSecurityToGroupTable 1 }

VacmSecurityToGroupEntry ::= SEQUENCE
    {
        vacmSecurityModel               SnmpSecurityModel,
        vacmSecurityName                SnmpAdminString,
        vacmGroupName                   SnmpAdminString,
        vacmSecurityToGroupStorageType  StorageType,
        vacmSecurityToGroupStatus       RowStatus
    }

vacmSecurityModel OBJECT-TYPE
    SYNTAX       SnmpSecurityModel(1..2147483647)
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION "The Security Model, by which the vacmSecurityName
                 referenced by this entry is provided.

                 Note, this object may not take the 'any' (0) value.
                "
    ::= { vacmSecurityToGroupEntry 1 }

vacmSecurityName OBJECT-TYPE
    SYNTAX       SnmpAdminString (SIZE(1..32))
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION "The securityName for the principal, represented in a
                 Security Model independent format, which is mapped by
                 this entry to a groupName.
                "
    ::= { vacmSecurityToGroupEntry 2 }

vacmGroupName    OBJECT-TYPE
    SYNTAX       SnmpAdminString (SIZE(1..32))
    MAX-ACCESS   read-create
    STATUS       current
    DESCRIPTION "The name of the group to which this entry (e.g., the
                 combination of securityModel and securityName)
                 belongs.

                 This groupName is used as index into the
                 vacmAccessTable to select an access control policy.
                 However, a value in this table does not imply that an
                 instance with the value exists in table vacmAccesTable.
                "
    ::= { vacmSecurityToGroupEntry 3 }

vacmSecurityToGroupStorageType OBJECT-TYPE
    SYNTAX       StorageType
    MAX-ACCESS   read-create
    STATUS       current
    DESCRIPTION "The storage type for this conceptual row.
                 Conceptual rows having the value 'permanent' need not
                 allow write-access to any columnar objects in the row.
                "
    DEFVAL      { nonVolatile }
    ::= { vacmSecurityToGroupEntry 4 }

vacmSecurityToGroupStatus OBJECT-TYPE
    SYNTAX       RowStatus
    MAX-ACCESS   read-create
    STATUS       current
    DESCRIPTION "The status of this conceptual row.

                 Until instances of all corresponding columns are
                 appropriately configured, the value of the
                 corresponding instance of the vacmSecurityToGroupStatus
                 column is 'notReady'.

                 In particular, a newly created row cannot be made
                 active until a value has been set for vacmGroupName.

                 The  RowStatus TC [RFC2579] requires that this
                 DESCRIPTION clause states under which circumstances
                 other objects in this row can be modified:

                 The value of this object has no effect on whether
                 other objects in this conceptual row can be modified.
                "
    ::= { vacmSecurityToGroupEntry 5 }

-- Information about Access Rights ***********************************

vacmAccessTable  OBJECT-TYPE
    SYNTAX       SEQUENCE OF VacmAccessEntry
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION "The table of access rights for groups.

                 Each entry is indexed by a groupName, a contextPrefix,
                 a securityModel and a securityLevel.  To determine
                 whether access is allowed, one entry from this table
                 needs to be selected and the proper viewName from that
                 entry must be used for access control checking.

                 To select the proper entry, follow these steps:

                 1) the set of possible matches is formed by the
                    intersection of the following sets of entries:
                      the set of entries with identical vacmGroupName
                      the union of these two sets:
                       - the set with identical vacmAccessContextPrefix
                       - the set of entries with vacmAccessContextMatch
                         value of 'prefix' and matching

                         vacmAccessContextPrefix
                      intersected with the union of these two sets:
                       - the set of entries with identical
                         vacmSecurityModel
                       - the set of entries with vacmSecurityModel
                         value of 'any'
                      intersected with the set of entries with
                      vacmAccessSecurityLevel value less than or equal
                      to the requested securityLevel