slapo-dynlist man page on Peanut

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SLAPO-DYNLIST(5)					      SLAPO-DYNLIST(5)

NAME
       slapo-dynlist - Dynamic List overlay

SYNOPSIS
       /etc/openldap/slapd.conf

DESCRIPTION
       The  dynlist overlay to slapd(8) allows expansion of dynamic groups and
       more.  Any time an entry with a specific objectClass is being returned,
       the  LDAP  URI-valued  occurrences of a specific attribute are expanded
       into the corresponding entries, and the values of the attributes listed
       in  the	URI are added to the original entry.  No recursion is allowed,
       to avoid potential infinite loops.  The	resulting  entry  must	comply
       with the LDAP data model, so constraints are enforced.  For example, if
       a SINGLE-VALUE attribute is listed, only the first value results in the
       final entry.

CONFIGURATION
       The  config directives that are specific to the dynlist overlay must be
       prefixed by dynlist-, to avoid potential conflicts with directives spe‐
       cific to the underlying database or to other stacked overlays.

       overlay dynlist
	      This directive adds the dynlist overlay to the current database,
	      or to the frontend, if used before any  database	instantiation;
	      see slapd.conf(5) for details.

       This slapd.conf configuration option is define for the dynlist overlay.
       It may have multiple occurrences, and it must appear after the  overlay
       directive.

       dynlist-attrset <group-oc> <URL-ad> [<member-ad>]
	      The  value  <group-oc> is the name of the objectClass that trig‐
	      gers the dynamic expansion of the data.

	      The value <URL-ad> is the name of the attributeDescription  that
	      cointains	 the  URI  that is expanded by the overlay; if none is
	      present, no  expansion  occurs.	If  the	 intersection  of  the
	      attributes  requested  by	 the search operation (or the asserted
	      attribute for compares) and the attributes listed in the URI  is
	      empty,  no expansion occurs for that specific URI.  It must be a
	      subtype of labeledURI.

	      The value <member-ad>  is	 optional;  if	present,  the  overlay
	      behaves  as  a dynamic group: this attribute will list the DN of
	      the entries resulting from the internal search.  In  this	 case,
	      the  <attrs>  portion  of the URI must be absent, and the DNs of
	      all the entries resulting from the  expansion  of	 the  URI  are
	      listed  as  values  of this attribute.  Compares that assert the
	      value of the <member-ad> attribute of  entries  with  <group-oc>
	      objectClass apply as if the DN of the entries resulting from the
	      expansion of the URI were present in  the	 <group-oc>  entry  as
	      values of the <member-ad> attribute.

       The  dynlist  overlay  may  be  used with any backend, but it is mainly
       intended for use with local storage backends.  In case the  URI	expan‐
       sion is very resource-intensive and occurs frequently with well-defined
       patterns, one should consider adding a proxycache later on in the over‐
       lay stack.

EXAMPLE
       This example collects all the email addresses of a database into a sin‐
       gle entry; first of all, make sure that slapd.conf contains the	direc‐
       tives:

	   include /path/to/dyngroup.schema
	   # ...

	   database <database>
	   # ...

	   overlay dynlist
	   dynlist-attrset groupOfURLs memberURL

       and that slapd loads dynlist.la, if compiled as a run-time module; then
       add to the database an entry like

	   dn: cn=Dynamic List,ou=Groups,dc=example,dc=com
	   objectClass: groupOfURLs
	   cn: Dynamic List
	   memberURL: ldap:///ou=People,dc=example,dc=com?mail?sub?(objectClass=person)

       If no <attrs> are provided in the URI, all (non-operational) attributes
       are collected.

       This  example  implements  the  dynamic	group  feature	on  the member
       attribute:

	   include /path/to/dyngroup.schema
	   # ...

	   database <database>
	   # ...

	   overlay dynlist
	   dynlist-attrset groupOfURLs memberURL member

FILES
       /etc/openldap/slapd.conf
	      default slapd configuration file

SEE ALSO
       slapd.conf(5), slapd(8).	 The slapo-dynlist(5) overlay supports dynamic
       configuration via back-config.

ACKNOWLEDGEMENTS
       This  module  was  written  in  2004  by Pierangelo Masarati for SysNet
       s.n.c.

OpenLDAP 2.3.24			  2006/05/30		      SLAPO-DYNLIST(5)
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