OpenLDAP 2.4 - Problem with rewrite overlay

[KISTER RAPHAEL <kraph@yahoo.com>]

Hello,

I have to configure an OpenLDAP directory that store some informations about users and groups  and that is a proxy with Active Directory.
To do this, i configure two suffix on my openldap server : the first one is to store informations about users and groups and the second is for the Active Directory proxy (second suffix is embedded in the first one.

To configure the Active Directory proxy, i use an ldap backend with rwm overlay to rewrite some attributes and objectclass.

When i test my configuration with slaptest binary, i get this error :
config error processing olcOverlay={0}rwm,olcDatabase={2}ldap,cn=config: <olcRwmMap> handler exited with 1
slaptest: bad configuration directory!

I am on a CentOS 5.4 server with OpenLDAP 2.4.20 (compile from sources) and Berkeley DB 4.6.21.

I'll give you my slapd.conf file :

 #
# See slapd.conf(5) for details on configuration options.
# This file should NOT be world readable.
#
serverid 001
# Inclusion des schemas
include         /opt/openldap/etc/openldap/schema/core.schema
include         /opt/openldap/etc/openldap/schema/cosine.schema
include         /opt/openldap/etc/openldap/schema/inetorgperson.schema
include         /opt/openldap/etc/openldap/schema/nis.schema
include         /opt/donnees/etc/openldap/schema/microsoft.schema
# Log level
loglevel -1
# The maximum number of entries that is returned for a search operation
sizelimit unlimited
# The tool-threads parameter sets the actual amount of cpu's that is used
# for indexing.
tool-threads 1
# PID File
pidfile         /opt/donnees/var/run/slapd.pid
argsfile        /opt/donnees/var/run/slapd.args
# Load dynamic backend modules:
#modulepath      /opt/openldap/lib
#moduleload      back_hdb
#moduleload      back_monitor
moduleload      rwm
# Access control policy:          
access to attrs=userPassword
  by self write
  by anonymous auth
  by * none
access to dn.base="" by * read
access to dn.subtree="cn=Monitor"
        by dn.exact="cn=admin,cn=config" write
        by users read
        by * none
access to *
        by self write
        by dn="cn=admin,cn=config" write
        by * none
# Configuration du backend
backend         hdb
#######################################################################
# BDB database definitions
#######################################################################
database monitor
# Dynamic Config 
database config 
rootdn "cn=admin,cn=config"
rootpw secret
#######################################################################
# Configuration Proxy Active Directory
database ldap
suffix ou=proxy,dc=my-company,dc=meta
rootdn     "cn=admin,cn=config"
subordinate
uri ldap://192.168.44.88:389
lastmod  off
acl-authcDN cn=admin,cn=config
acl-passwd secret
idassert-bind bindmethod="simple"
 binddn="CN=srv_ldap,OU=Services-account,OU=Administration,dc=my-company,dc=local"
 credentials="Azerty00"
 mode="legacy"
overlay rwm
rwm-suffixmassage   dc=my-company,dc=local
rwm-map attribute uid sAMAccountName
rwm-map     attribute       cn      cn
rwm-map     attribute       displayName      displayName
rwm-map     attribute       givenName      givenName
rwm-map     attribute       sn      sn
rwm-map     attribute       mail    mail
rwm-map     attribute       userPassword      userPassword
rwm-map attribute  *
rwm-map objectclass inetOrgPerson user
#######################################################################
# Configuration Annuaire technique (habilitations, partenaires, internautes)
database   hdb
suffix     "dc=my-company,dc=meta"
rootdn     "cn=admin,cn=config"
directory  "/opt/donnees/var/openldap-data"
checkpoint    512 30
dbconfig set_cachesize 0 128000000 0
dbconfig set_lk_max_objects 1500
dbconfig set_lk_max_locks 1500
dbconfig set_lk_max_lockers 1500
index     objectClass,entryCSN,entryUUID eq
index     uid pres,eq,sub
index     sn pres,eq,sub
index     mail pres,eq,sub
index     cn pres,eq,sub
lastmod   on

When i install OpenLDAP on my server, i execute this commands :
CPPFLAGS="-I/usr/local/BerkeleyDB.4.6/include" LDFLAGS="-L/usr/local/BerkeleyDB.4.6/lib"
 ./configure --prefix=/opt/openldap --enable-shared --enable-crypt=yes --enable-rewrite=yes
 --enable-bdb=yes --enable-hdb=yes --enable-ldap=mod --enable-meta=mod --enable-monitor=yes
 --enable-relay=mod --enable-overlays=yes --with-cyrus-sasl --with-threads=posix
 --with-tls=openssl
make depend
make
make test
make install

What's wrong with my installation or my config file ? Is this error is an OpenLDAP bug ?

Thank you for your help,
Raphaël KISTER