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https://git.openldap.org/openldap/openldap.git
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137 lines
3.2 KiB
C
137 lines
3.2 KiB
C
/* compare.c - ldbm 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 1998-2006 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/socket.h>
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#include <ac/string.h>
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#include "slap.h"
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#include "back-ldbm.h"
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#include "proto-back-ldbm.h"
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int
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ldbm_back_compare(
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Operation *op,
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SlapReply *rs )
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{
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struct ldbminfo *li = (struct ldbminfo *) op->o_bd->be_private;
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Entry *matched;
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Entry *e;
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Attribute *a;
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int manageDSAit = get_manageDSAit( op );
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rs->sr_matched = NULL;
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rs->sr_ref = NULL;
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/* grab giant lock for reading */
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ldap_pvt_thread_rdwr_rlock(&li->li_giant_rwlock);
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/* get entry with reader lock */
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e = dn2entry_r( op->o_bd, &op->o_req_ndn, &matched );
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if ( e == NULL ) {
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if ( matched != NULL ) {
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struct berval bv;
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ber_str2bv_x( matched, 0, 1, &bv, op->o_tmpmemctx );
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rs->sr_matched = bv.bv_val;
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rs->sr_ref = is_entry_referral( matched )
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? get_entry_referrals( op, matched )
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: NULL;
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cache_return_entry_r( &li->li_cache, matched );
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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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}
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ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
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rs->sr_err = LDAP_REFERRAL;
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goto return_results;
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}
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if ( !manageDSAit && is_entry_referral( e ) ) {
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struct berval bv;
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/* entry is a referral, don't allow add */
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rs->sr_ref = get_entry_referrals( op, e );
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Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0,
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0, 0 );
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rs->sr_err = LDAP_REFERRAL;
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ber_dupbv_x( &bv, &e->e_name, op->o_tmpmemctx );
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rs->sr_matched = bv.bv_val;
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goto return_results;
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}
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if ( ! access_allowed( op, e,
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op->oq_compare.rs_ava->aa_desc, &op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL ) )
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{
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send_ldap_error( op, rs, LDAP_INSUFFICIENT_ACCESS,
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NULL );
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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 ( value_find_ex( op->oq_compare.rs_ava->aa_desc,
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SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
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SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
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a->a_nvals, &op->oq_compare.rs_ava->aa_value,
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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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cache_return_entry_r( &li->li_cache, e );
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ldap_pvt_thread_rdwr_runlock(&li->li_giant_rwlock);
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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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if ( rs->sr_ref != NULL ) {
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ber_bvarray_free( rs->sr_ref );
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rs->sr_ref = NULL;
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}
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if ( rs->sr_matched != NULL ) {
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op->o_tmpfree( (char *)rs->sr_matched, op->o_tmpmemctx );
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rs->sr_matched = NULL;
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}
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return rs->sr_err;
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}
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