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/* referral.c - LDBM backend referral handler */
/* $OpenLDAP: pkg/ldap/servers/slapd/back-ldbm/referral.c,v 1.24.2.3 2006/01/06 19:46:16 kurt Exp $ */
/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
* Copyright 1998-2006 The OpenLDAP Foundation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted only as authorized by the OpenLDAP
* Public License.
*
* A copy of this license is available in the file LICENSE in the
* top-level directory of the distribution or, alternatively, at
* <http://www.OpenLDAP.org/license.html>.
*/
#include "portable.h"
#include <stdio.h>
#include <ac/string.h>
#include <ac/socket.h>
#include "slap.h"
#include "back-ldbm.h"
int
ldbm_back_referrals(
Operation *op,
SlapReply *rs )
{
struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
Entry *e, *matched;
int rc = LDAP_SUCCESS;
if( op->o_tag == LDAP_REQ_SEARCH ) {
/* let search take care of itself */
return LDAP_SUCCESS;
}
if( get_manageDSAit( op ) ) {
/* let op take care of DSA management */
return LDAP_SUCCESS;
}
/* grab giant lock for reading */
ldap_pvt_thread_rdwr_rlock(&li->li_giant_rwlock);
/* get entry with reader lock */
e = dn2entry_r( op->o_bd, &op->o_req_ndn, &matched );
if ( e == NULL ) {
if ( matched != NULL ) {
rs->sr_matched = ch_strdup( matched->e_dn );
Debug( LDAP_DEBUG_TRACE,
"ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
op->o_tag, op->o_req_dn.bv_val, rs->sr_matched );
if ( is_entry_referral( matched ) ) {
rc = rs->sr_err = LDAP_OTHER;
rs->sr_ref = get_entry_referrals( op, matched );
}
cache_return_entry_r( &li->li_cache, matched );
} else if ( !be_issuffix( op->o_bd, &op->o_req_ndn ) && default_referral != NULL ) {
rc = rs->sr_err = LDAP_OTHER;
rs->sr_ref = referral_rewrite( default_referral,
NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
}
ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
if ( rs->sr_ref != NULL ) {
/* send referrals */
rc = rs->sr_err = LDAP_REFERRAL;
} else {
rs->sr_text = rs->sr_matched ? "bad referral object" : "bad default referral";
}
if ( rc != LDAP_SUCCESS ) {
send_ldap_result( op, rs );
}
if ( rs->sr_matched ) free( (char *)rs->sr_matched );
if ( rs->sr_ref ) ber_bvarray_free( rs->sr_ref );
rs->sr_text = NULL;
rs->sr_ref = NULL;
rs->sr_matched = NULL;
return rc;
}
if ( is_entry_referral( e ) ) {
/* entry is a referral */
BerVarray refs = get_entry_referrals( op, e );
rs->sr_ref = referral_rewrite(
refs, &e->e_name, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
Debug( LDAP_DEBUG_TRACE,
"ldbm_referrals: op=%ld target=\"%s\" matched=\"%s\"\n",
op->o_tag, op->o_req_dn.bv_val, e->e_dn );
rs->sr_matched = e->e_name.bv_val;
if( rs->sr_ref != NULL ) {
rc = rs->sr_err = LDAP_REFERRAL;
rs->sr_text = NULL;
} else {
rc = rs->sr_err = LDAP_OTHER;
rs->sr_text = "bad referral object";
}
send_ldap_result( op, rs );
if ( refs != NULL ) ber_bvarray_free( refs );
rs->sr_err = rc;
rs->sr_ref = NULL;
rs->sr_text = NULL;
rs->sr_matched = NULL;
}
cache_return_entry_r( &li->li_cache, e );
ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
return rc;
}
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