mirror of
https://git.openldap.org/openldap/openldap.git
synced 2024-12-21 03:10:25 +08:00
186 lines
4.8 KiB
Groff
186 lines
4.8 KiB
Groff
.\" Copyright 2004-2005 The OpenLDAP Foundation All Rights Reserved.
|
|
.\" Copying restrictions apply. See COPYRIGHT/LICENSE.
|
|
.TH SLAPO_LASTMOD 5 "RELEASEDATE" "OpenLDAP LDVERSION"
|
|
.SH NAME
|
|
slapo-lastmod \- Last Modification overlay
|
|
.SH SYNOPSIS
|
|
ETCDIR/slapd.conf
|
|
.SH DESCRIPTION
|
|
.LP
|
|
The
|
|
.B lastmod
|
|
overlay creates aa service entry rooted at the suffix of the database
|
|
it's stacked onto, which holds the DN, the modification type,
|
|
the modifiersName and the modifyTimestamp of the last write operation
|
|
performed on that database.
|
|
The lastmod overlay cannot be used when the "lastmod" feature
|
|
is disabled, i.e. "lastmod off" is used.
|
|
.P
|
|
All operations targeted at the DN of the lastmod entry are rejected,
|
|
except reads, i.e. searches with
|
|
.B base
|
|
scope.
|
|
Regular operations are ignored, unless they result in writing; then,
|
|
in case of success, the lastmod entry is updated accordingly,
|
|
if possible.
|
|
|
|
.SH CONFIGURATION
|
|
These
|
|
.B slapd.conf
|
|
configuration options apply to the lastmod overlay. They must appear
|
|
after the
|
|
.B overlay
|
|
directive.
|
|
.TP
|
|
.B lastmod-rdnvalue <RDN value>
|
|
Specify the value of the RDN used for the service entry. By default
|
|
.I Lastmod
|
|
is used.
|
|
.TP
|
|
.B lastmod-enabled {yes|no}
|
|
Specify whether the overlay must be enabled or not at startup.
|
|
By default, the overlay is enabled; however, by changing the boolean
|
|
value of the attribute
|
|
.IR lastmodEnabled ,
|
|
one can affect the status of the overlay.
|
|
This is useful, for instance, to inhibit the overlay from keeping track
|
|
of large bulk loads or deletions.
|
|
|
|
.SH OBJECT CLASS
|
|
The
|
|
.B lastmod
|
|
overlay depends on the
|
|
.B lastmod
|
|
objectClass. The definition of that class is as follows:
|
|
.LP
|
|
.RS 4
|
|
( 1.3.6.1.4.1.4203.666.3.13 "
|
|
NAME 'lastmod'
|
|
DESC 'OpenLDAP per-database last modification monitoring'
|
|
STRUCTURAL
|
|
SUP top
|
|
MUST ( cn $ lastmodDN $ lastmodType )
|
|
MAY ( description $ seeAlso ) )
|
|
.RE
|
|
|
|
.SH ATTRIBUTES
|
|
.P
|
|
Each one of the sections below details the meaning and use of a particular
|
|
attribute of this
|
|
.B lastmod
|
|
objectClass.
|
|
Most of the attributes that are specific to the lastmod objectClass are
|
|
operational, since they can logically be altered only by the DSA.
|
|
The most notable exception is the
|
|
.I lastmodEnabled
|
|
attributeType, which can be altered via protocol to change the status
|
|
of the overlay.
|
|
.P
|
|
|
|
.B lastmodEnabled
|
|
.P
|
|
This attribute contains a boolean flag that determines the status
|
|
of the overlay. It can be latered via protocol by issuing a modify
|
|
operation that replaces the value of the attribute.
|
|
.LP
|
|
.RS 4
|
|
( 1.3.6.1.4.1.4203.666.1.30
|
|
NAME 'lastmodEnabled'
|
|
DESC 'Lastmod overlay state'
|
|
SYNTAX 1.3.6.1.4.1.1466.115.121.1.7
|
|
EQUALITY booleanMatch
|
|
SINGLE-VALUE )
|
|
.RE
|
|
|
|
.SH OPERATIONAL ATTRIBUTES
|
|
.P
|
|
Each one of the sections below details the meaning and use of a particular
|
|
attribute of this
|
|
.B lastmod
|
|
objectClass.
|
|
Most of the attributes that are specific to the lastmod objectClass are
|
|
operational, since they can logically be altered only by the DSA.
|
|
.P
|
|
|
|
.B lastmodDN
|
|
.P
|
|
This attribute contains the distingyished name of the entry
|
|
that was last modified within the naming context of a database.
|
|
.LP
|
|
.RS 4
|
|
( 1.3.6.1.4.1.4203.666.1.28
|
|
NAME 'lastmodDN'
|
|
DESC 'DN of last modification'
|
|
EQUALITY distinguishedNameMatch
|
|
SYNTAX 1.3.6.1.4.1.1466.115.121.1.12
|
|
NO-USER-MODIFICATION
|
|
USAGE directoryOperation )
|
|
.RE
|
|
|
|
.B lastmodType
|
|
.P
|
|
This attribute contains the type of the modification that occurred
|
|
to the last modified entry. Legal values are
|
|
.BR add ,
|
|
.BR delete ,
|
|
.BR exop ,
|
|
.BR modify ,
|
|
.B modrdn
|
|
and
|
|
.BR unknown .
|
|
The latter should only be used as a fall-thru in case of unhandled
|
|
request types that are considered equivalent to a write operation.
|
|
.LP
|
|
.RS 4
|
|
( 1.3.6.1.4.1.4203.666.1.29
|
|
NAME 'lastmodType'
|
|
DESC 'Type of last modification'
|
|
SYNTAX 1.3.6.1.4.1.1466.115.121.1.15
|
|
EQUALITY caseIgnoreMatch
|
|
SINGLE-VALUE
|
|
NO-USER-MODIFICATION
|
|
USAGE directoryOperation )
|
|
.RE
|
|
|
|
|
|
.SH EXAMPLES
|
|
.LP
|
|
.RS
|
|
.nf
|
|
database bdb
|
|
suffix dc=example,dc=com
|
|
\...
|
|
overlay lastmod
|
|
lastmod-rdnvalue "Last Modification"
|
|
.fi
|
|
.RE
|
|
|
|
.SH SEE ALSO
|
|
.BR ldap (3),
|
|
.BR slapd.conf (5),
|
|
.LP
|
|
"OpenLDAP Administrator's Guide" (http://www.OpenLDAP.org/doc/admin/)
|
|
.LP
|
|
|
|
.SH BUGS
|
|
It is unclear whether this overlay can safely interoperate
|
|
with other overlays.
|
|
If the underlying backend does not implement entry_get/entry_release
|
|
handlers, modrdn update can become tricky.
|
|
The code needs some cleanup and more consistent error handling.
|
|
So far, the OIDs for the schema haven't been assigned yet.
|
|
|
|
.SH ACKNOWLEDGEMENTS
|
|
.P
|
|
This module was written in 2004 by Pierangelo Masarati in fulfilment
|
|
of requirements from SysNet s.n.c.; this man page has been copied
|
|
from
|
|
.BR slapo-ppolicy (5),
|
|
and most of the overlays ever written are copied from Howard Chu's
|
|
first overlays.
|
|
.P
|
|
.B OpenLDAP
|
|
is developed and maintained by The OpenLDAP Project (http://www.openldap.org/).
|
|
.B OpenLDAP
|
|
is derived from University of Michigan LDAP 3.3 Release.
|