+ qpw->rs_old.bv_len = 0;
+ qpw->rs_old.bv_val = NULL;
+ qpw->rs_new.bv_len = 0;
+ qpw->rs_new.bv_val = NULL;
+ qpw->rs_mods = NULL;
+ qpw->rs_modtail = NULL;
+
+ rs->sr_err = slap_passwd_parse( op->ore_reqdata, &id,
+ &qpw->rs_old, &qpw->rs_new, &rs->sr_text );
+
+ if ( rs->sr_err == LDAP_SUCCESS && !BER_BVISEMPTY( &id ) ) {
+ Statslog( LDAP_DEBUG_STATS, "%s PASSMOD id=\"%s\"%s%s\n",
+ op->o_log_prefix, id.bv_val,
+ qpw->rs_old.bv_val ? " old" : "",
+ qpw->rs_new.bv_val ? " new" : "", 0 );
+ } else {
+ Statslog( LDAP_DEBUG_STATS, "%s PASSMOD%s%s\n",
+ op->o_log_prefix,
+ qpw->rs_old.bv_val ? " old" : "",
+ qpw->rs_new.bv_val ? " new" : "", 0, 0 );
+ }
+
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ return rs->sr_err;
+ }
+
+ if ( !BER_BVISEMPTY( &id ) ) {
+ rs->sr_err = dnPrettyNormal( NULL, &id, &op->o_req_dn,
+ &op->o_req_ndn, op->o_tmpmemctx );
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ rs->sr_text = "Invalid DN";
+ rc = rs->sr_err;
+ goto error_return;
+ }
+ op->o_bd = select_backend( &op->o_req_ndn, 0, 1 );
+
+ } else {
+ ber_dupbv_x( &op->o_req_dn, &op->o_dn, op->o_tmpmemctx );
+ ber_dupbv_x( &op->o_req_ndn, &op->o_ndn, op->o_tmpmemctx );
+ ldap_pvt_thread_mutex_lock( &op->o_conn->c_mutex );
+ op->o_bd = op->o_conn->c_authz_backend;
+ ldap_pvt_thread_mutex_unlock( &op->o_conn->c_mutex );
+ }
+
+ if( op->o_bd == NULL ) {
+ if ( qpw->rs_old.bv_val != NULL ) {
+ rs->sr_text = "unwilling to verify old password";