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
