2008-08-27 05:48:17 +08:00
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/* compare.cpp - ndb 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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2015-02-12 05:36:57 +08:00
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* Copyright 2008-2015 The OpenLDAP Foundation.
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2008-08-27 05:48:17 +08:00
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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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/* ACKNOWLEDGEMENTS:
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* This work was initially developed by Howard Chu for inclusion
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* in OpenLDAP Software. This work was sponsored by MySQL.
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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-ndb.h"
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int
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ndb_back_compare( Operation *op, SlapReply *rs )
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{
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struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
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Entry e = {0};
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Attribute *a;
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int manageDSAit = get_manageDSAit( op );
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NdbArgs NA;
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NdbRdns rdns;
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struct berval matched;
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/* Get our NDB handle */
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rs->sr_err = ndb_thread_handle( op, &NA.ndb );
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rdns.nr_num = 0;
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NA.rdns = &rdns;
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e.e_name = op->o_req_dn;
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e.e_nname = op->o_req_ndn;
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NA.e = &e;
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dn2entry_retry:
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NA.txn = NA.ndb->startTransaction();
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rs->sr_text = NULL;
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if( !NA.txn ) {
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Debug( LDAP_DEBUG_TRACE,
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LDAP_XSTRING(ndb_compare) ": startTransaction failed: %s (%d)\n",
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NA.ndb->getNdbError().message, NA.ndb->getNdbError().code, 0 );
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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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NA.ocs = NULL;
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/* get entry */
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rs->sr_err = ndb_entry_get_info( op, &NA, 0, &matched );
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switch( rs->sr_err ) {
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case 0:
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break;
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case LDAP_NO_SUCH_OBJECT:
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rs->sr_matched = matched.bv_val;
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if ( NA.ocs )
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ndb_check_referral( op, rs, &NA );
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goto return_results;
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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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#if 0
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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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#endif
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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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rs->sr_err = ndb_entry_get_data( op, &NA, 0 );
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ber_bvarray_free_x( NA.ocs, op->o_tmpmemctx );
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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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rs->sr_flags |= REP_REF_MUSTBEFREED;
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}
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0, 0, 0 );
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goto return_results;
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}
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if ( get_assert( op ) &&
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( test_filter( op, &e, (Filter *)get_assertion( op )) != LDAP_COMPARE_TRUE ))
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{
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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_err = LDAP_ASSERTION_FAILED;
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}
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goto return_results;
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}
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if ( !access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
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&op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL ) )
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{
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/* return error only if "disclose"
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* 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_err = LDAP_INSUFFICIENT_ACCESS;
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}
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goto return_results;
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}
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rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
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for ( a = attrs_find( e.e_attrs, op->oq_compare.rs_ava->aa_desc );
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a != NULL;
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a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc ) )
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{
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rs->sr_err = LDAP_COMPARE_FALSE;
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if ( attr_valfind( a,
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SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
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SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
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&op->oq_compare.rs_ava->aa_value, NULL,
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op->o_tmpmemctx ) == 0 )
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{
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rs->sr_err = LDAP_COMPARE_TRUE;
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break;
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}
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}
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return_results:
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NA.txn->close();
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if ( e.e_attrs ) {
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attrs_free( e.e_attrs );
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e.e_attrs = NULL;
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}
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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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return rs->sr_err;
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}
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