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NAME | SYNOPSIS | DESCRIPTION | CONFIGURATION | EXAMPLES | FILES | SEE ALSO | ACKNOWLEDGEMENTS | COLOPHON |
SLAPO-CONSTRAINT(5) File Formats Manual SLAPO-CONSTRAINT(5)
slapo-constraint - Attribute Constraint Overlay to slapd
ETCDIR/slapd.conf
The constraint overlay is used to ensure that attribute values match
some constraints beyond basic LDAP syntax. Attributes can have
multiple constraints placed upon them, and all must be satisfied when
modifying an attribute value under constraint.
This overlay is intended to be used to force syntactic regularity
upon certain string represented data which have well known canonical
forms, like telephone numbers, post codes, FQDNs, etc.
It constrains only LDAP add, modify and rename commands and only
seeks to control the add and replace values of modify and rename
requests.
No constraints are applied for operations performed with the relax
control set.
This slapd.conf option applies to the constraint overlay. It should
appear after the overlay directive.
constraint_attribute <attribute_name>[,...] <type> <value> [<extra>
[...]]
Specifies the constraint which should apply to the comma-
separated attribute list named as the first parameter. Five
types of constraint are currently supported - regex, size,
count, uri, and set.
The parameter following the regex type is a Unix style regular
expression (See regex(7) ). The parameter following the uri
type is an LDAP URI. The URI will be evaluated using an
internal search. It must not include a hostname, and it must
include a list of attributes to evaluate.
The parameter following the set type is a string that is
interpreted according to the syntax in use for ACL sets. This
allows one to construct constraints based on the contents of
the entry.
The size type can be used to enforce a limit on an attribute
length, and the count type limits the number of values of an
attribute.
Extra parameters can occur in any order after those described
above.
<extra> : restrict=<uri>
This extra parameter allows one to restrict the application of
the corresponding constraint only to entries that match the
base, scope and filter portions of the LDAP URI. The base, if
present, must be within the naming context of the database.
The scope is only used when the base is present; it defaults
to base. The other parameters of the URI are not allowed.
Any attempt to add or modify an attribute named as part of the
constraint overlay specification which does not fit the constraint
listed will fail with a LDAP_CONSTRAINT_VIOLATION error.
overlay constraint
constraint_attribute jpegPhoto size 131072
constraint_attribute userPassword count 3
constraint_attribute mail regex ^[[:alnum:]]+@mydomain.com$
constraint_attribute title uri
ldap:///dc=catalog,dc=example,dc=com?title?sub?(objectClass=titleCatalog)
constraint_attribute cn,sn,givenName set
"(this/givenName + [ ] + this/sn) & this/cn"
restrict="ldap:///ou=People,dc=example,dc=com??sub?(objectClass=inetOrgPerson)"
A specification like the above would reject any mail attribute which
did not look like <alpha-numeric string>@mydomain.com. It would also
reject any title attribute whose values were not listed in the title
attribute of any titleCatalog entries in the given scope. (Note that
the "dc=catalog,dc=example,dc=com" subtree ought to reside in a
separate database, otherwise the initial set of titleCatalog entries
could not be populated while the constraint is in effect.) Finally,
it requires the values of the attribute cn to be constructed by
pairing values of the attributes sn and givenName, separated by a
space, but only for entries derived from the objectClass
inetOrgPerson.
ETCDIR/slapd.conf
default slapd configuration file
slapd.conf(5), slapd-config(5),
This module was written in 2005 by Neil Dunbar of Hewlett-Packard and
subsequently extended by Howard Chu and Emmanuel Dreyfus. OpenLDAP
Software is developed and maintained by The OpenLDAP Project
<http://www.openldap.org/>. OpenLDAP Software is derived from the
University of Michigan LDAP 3.3 Release.
This page is part of the OpenLDAP (an open source implementation of
the Lightweight Directory Access Protocol) project. Information
about the project can be found at ⟨http://www.openldap.org/⟩. If you
have a bug report for this manual page, see
⟨http://www.openldap.org/its/⟩. This page was obtained from the
project's upstream Git repository
⟨git://git.openldap.org/openldap.git⟩ on 2017-07-05. If you discover
any rendering problems in this HTML version of the page, or you
believe there is a better or more up-to-date source for the page, or
you have corrections or improvements to the information in this
COLOPHON (which is not part of the original manual page), send a mail
to man-pages@man7.org
OpenLDAP LDVERSION RELEASEDATE SLAPO-CONSTRAINT(5)
Pages that refer to this page: slapd.overlays(5)