mirror of
https://git.openldap.org/openldap/openldap.git
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144 lines
3.2 KiB
C
144 lines
3.2 KiB
C
/* compare.c - bdb backend compare routine */
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/* $OpenLDAP$ */
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/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
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*
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* Copyright 2000-2015 The OpenLDAP Foundation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted only as authorized by the OpenLDAP
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* Public License.
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*
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* A copy of this license is available in the file LICENSE in the
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* top-level directory of the distribution or, alternatively, at
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* <http://www.OpenLDAP.org/license.html>.
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*/
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#include "portable.h"
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#include <stdio.h>
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#include <ac/string.h>
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#include "back-bdb.h"
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int
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bdb_compare( Operation *op, SlapReply *rs )
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{
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struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
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Entry *e = NULL;
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EntryInfo *ei;
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int manageDSAit = get_manageDSAit( op );
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DB_TXN *rtxn;
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DB_LOCK lock;
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rs->sr_err = bdb_reader_get(op, bdb->bi_dbenv, &rtxn);
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switch(rs->sr_err) {
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case 0:
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break;
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default:
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send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
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return rs->sr_err;
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}
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dn2entry_retry:
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/* get entry */
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rs->sr_err = bdb_dn2entry( op, rtxn, &op->o_req_ndn, &ei, 1,
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&lock );
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switch( rs->sr_err ) {
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case DB_NOTFOUND:
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case 0:
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break;
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case LDAP_BUSY:
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rs->sr_text = "ldap server busy";
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goto return_results;
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case DB_LOCK_DEADLOCK:
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case DB_LOCK_NOTGRANTED:
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goto dn2entry_retry;
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default:
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rs->sr_err = LDAP_OTHER;
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rs->sr_text = "internal error";
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goto return_results;
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}
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e = ei->bei_e;
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if ( rs->sr_err == DB_NOTFOUND ) {
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if ( e != NULL ) {
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/* return referral only if "disclose" is granted on the object */
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if ( ! access_allowed( op, e, slap_schema.si_ad_entry,
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NULL, ACL_DISCLOSE, NULL ) )
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{
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rs->sr_err = LDAP_NO_SUCH_OBJECT;
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} else {
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rs->sr_matched = ch_strdup( e->e_dn );
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rs->sr_ref = is_entry_referral( e )
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? get_entry_referrals( op, e )
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: NULL;
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rs->sr_err = LDAP_REFERRAL;
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}
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bdb_cache_return_entry_r( bdb, e, &lock );
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e = NULL;
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} else {
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rs->sr_ref = referral_rewrite( default_referral,
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NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
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rs->sr_err = rs->sr_ref ? LDAP_REFERRAL : LDAP_NO_SUCH_OBJECT;
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}
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send_ldap_result( op, rs );
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ber_bvarray_free( rs->sr_ref );
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free( (char *)rs->sr_matched );
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rs->sr_ref = NULL;
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rs->sr_matched = NULL;
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goto done;
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}
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if (!manageDSAit && is_entry_referral( e ) ) {
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/* return referral only if "disclose" is granted on the object */
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if ( !access_allowed( op, e, slap_schema.si_ad_entry,
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NULL, ACL_DISCLOSE, NULL ) )
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{
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rs->sr_err = LDAP_NO_SUCH_OBJECT;
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} else {
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/* entry is a referral, don't allow compare */
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rs->sr_ref = get_entry_referrals( op, e );
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rs->sr_err = LDAP_REFERRAL;
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rs->sr_matched = e->e_name.bv_val;
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}
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0, 0, 0 );
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send_ldap_result( op, rs );
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ber_bvarray_free( rs->sr_ref );
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rs->sr_ref = NULL;
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rs->sr_matched = NULL;
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goto done;
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}
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rs->sr_err = slap_compare_entry( op, e, op->orc_ava );
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return_results:
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send_ldap_result( op, rs );
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switch ( rs->sr_err ) {
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case LDAP_COMPARE_FALSE:
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case LDAP_COMPARE_TRUE:
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rs->sr_err = LDAP_SUCCESS;
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break;
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}
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done:
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/* free entry */
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if ( e != NULL ) {
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bdb_cache_return_entry_r( bdb, e, &lock );
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}
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return rs->sr_err;
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}
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