Provided by: slapd_2.4.18-0ubuntu1_i386 bug

NAME

       slapd-perl - Perl backend to slapd

SYNOPSIS

       /etc/ldap/slapd.conf

DESCRIPTION

       The  Perl  backend to slapd(8) works by embedding a perl(1) interpreter
       into slapd(8).  Any perl database section  of  the  configuration  file
       slapd.conf(5)  must  then  specify what Perl module to use.  Slapd then
       creates a new Perl object  that  handles  all  the  requests  for  that
       particular instance of the backend.

       You will need to create a method for each one of the following actions:

         * new        # creates a new object,
         * search     # performs the ldap search,
         * compare    # does a compare,
         * modify     # modifies an entry,
         * add        # adds an entry to backend,
         * modrdn     # modifies an entry’s rdn,
         * delete     # deletes an ldap entry,
         * config     # process unknown config file lines,
         * init       # called after backend is initialized.

       Unless otherwise specified, the methods return the  result  code  which
       will  be returned to the client.  Unimplemented actions can just return
       unwillingToPerform (53).

       new    This method is called when the configuration file  encounters  a
              perlmod  line.   The  module  in  that  line is then effectively
              ‘use’d into the perl interpreter, then the new method is  called
              to  create  a  new object.  Note that multiple instances of that
              object may be instantiated, as with any perl  object.   The  new
              method receives the class name as argument.

       search This method is called when a search request comes from a client.
              It arguments are as follows:
                * object reference
                * base DN
                * scope
                * alias dereferencing policy
                * size limit
                * time limit
                * filter string
                * attributes only flag (1 for yes)
                * list of attributes to return (may be empty)

       Return value: (resultcode, ldif-entry, ldif-entry, ...)

       compare
              This method is called  when  a  compare  request  comes  from  a
              client.  Its arguments are as follows.
                * object reference
                * dn
                * attribute assertion string

       modify This method is called when a modify request comes from a client.
              Its arguments are as follows.
                * object reference
                * dn
                * a list formatted as follows
                  ({ "ADD" | "DELETE" | "REPLACE" },
                   attributetype, value...)...

       add    This method is called when a add request comes  from  a  client.
              Its arguments are as follows.
                * object reference
                * entry in string format

       modrdn This method is called when a modrdn request comes from a client.
              Its arguments are as follows.
                * object reference
                * dn
                * new rdn
                * delete old dn flag (1 means yes)

       delete This method is called when a delete request comes from a client.
              Its arguments are as follows.
                * object reference
                * dn

       config This  method  is called with unknown slapd.conf(5) configuration
              file lines.  Its arguments are as follows.
                * object reference
                * array of arguments on line

       Return value: nonzero if this is not a valid option.

       init   This  method  is  called  after  backend  is  initialized.   Its
              argument is as follows.
                * object reference

       Return value: nonzero if initialization failed.

CONFIGURATION

       These  slapd.conf options apply to the PERL backend database.  That is,
       they must follow a "database perl" line and come before any  subsequent
       "backend" or "database" lines.  Other database options are described in
       the slapd.conf(5) manual page.

       perlModulePath /path/to/libs
              Add the path to the @INC variable.

       perlModule ModName
              ‘Use’ the module name ModName from ModName.pm

       filterSearchResults
              Search results are candidates that need to be filtered (with the
              filter  in the search request), rather than search results to be
              returned directly to the client.

EXAMPLE

       There is an example Perl module ‘SampleLDAP’  in  the  slapd/back-perl/
       directory in the OpenLDAP source tree.

ACCESS CONTROL

       The  passwd  backend does not honor any of the access control semantics
       described in slapd.access(5); all access control is  delegated  to  the
       underlying  PERL scripting.  Only read (=r) access to the entry pseudo-
       attribute and to the other attribute values of the entries returned  by
       the search operation is honored, which is performed by the frontend.

WARNING

       The  interface  of  this  backend  to  the perl module MAY change.  Any
       suggestions would greatly be appreciated.

FILES

       /etc/ldap/slapd.conf
              default slapd configuration file

SEE ALSO

       slapd.conf(5), slapd(8), perl(1).