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-rw-r--r--servers/slapd/back-wt/compare.c154
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diff --git a/servers/slapd/back-wt/compare.c b/servers/slapd/back-wt/compare.c
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+/* OpenLDAP WiredTiger backend */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2002-2022 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>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was developed by HAMANO Tsukasa <hamano@osstech.co.jp>
+ * based on back-bdb for inclusion in OpenLDAP Software.
+ * WiredTiger is a product of MongoDB Inc.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/string.h>
+
+#include "back-wt.h"
+#include "slap-config.h"
+
+int
+wt_compare( Operation *op, SlapReply *rs )
+{
+ struct wt_info *wi = (struct wt_info *) op->o_bd->be_private;
+ Entry *e = NULL;
+ int manageDSAit = get_manageDSAit( op );
+ int rc;
+ wt_ctx *wc = NULL;
+
+ Debug( LDAP_DEBUG_ARGS, "==> wt_compare: %s\n",
+ op->o_req_dn.bv_val );
+
+ wc = wt_ctx_get(op, wi);
+ if( !wc ){
+ Debug( LDAP_DEBUG_ANY, "wt_compare: wt_ctx_get failed\n" );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ send_ldap_result( op, rs );
+ return rs->sr_err;
+ }
+
+ rc = wt_dn2entry(op->o_bd, wc, &op->o_req_ndn, &e);
+ switch( rc ) {
+ case 0:
+ case WT_NOTFOUND:
+ break;
+ default:
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+
+ if ( rc == WT_NOTFOUND ||
+ (!manageDSAit && e && is_entry_glue( e ) )) {
+
+ if ( !e ) {
+ rc = wt_dn2aentry(op->o_bd, wc, &op->o_req_ndn, &e);
+ switch( rc ) {
+ case 0:
+ break;
+ case WT_NOTFOUND:
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ goto return_results;
+ default:
+ Debug( LDAP_DEBUG_ANY, "wt_compare: wt_dn2aentry failed (%d)\n",
+ rc );
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
+ goto return_results;
+ }
+ }
+
+ /* return referral only if "disclose" is granted on the object */
+ if ( ! access_allowed( op, e, slap_schema.si_ad_entry,
+ NULL, ACL_DISCLOSE, NULL ) )
+ {
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ } else {
+ rs->sr_matched = ch_strdup( e->e_dn );
+ if ( is_entry_referral( e )) {
+ BerVarray ref = get_entry_referrals( op, e );
+ rs->sr_ref = referral_rewrite( ref,
+ &e->e_name,
+ &op->o_req_dn,
+ LDAP_SCOPE_DEFAULT );
+ ber_bvarray_free( ref );
+ } else {
+ rs->sr_ref = NULL;
+ }
+ rs->sr_err = LDAP_REFERRAL;
+ }
+ rs->sr_flags = REP_MATCHED_MUSTBEFREED | REP_REF_MUSTBEFREED;
+ send_ldap_result( op, rs );
+ goto done;
+ }
+
+ if (!manageDSAit && is_entry_referral( e ) ) {
+ /* return referral only if "disclose" is granted on the object */
+ if ( !access_allowed( op, e, slap_schema.si_ad_entry,
+ NULL, ACL_DISCLOSE, NULL ) )
+ {
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ } else {
+ /* entry is a referral, don't allow compare */
+ rs->sr_ref = get_entry_referrals( op, e );
+ rs->sr_err = LDAP_REFERRAL;
+ rs->sr_matched = e->e_name.bv_val;
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "entry is referral\n" );
+
+ send_ldap_result( op, rs );
+
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ rs->sr_matched = NULL;
+ goto done;
+ }
+
+ rs->sr_err = slap_compare_entry( op, e, op->orc_ava );
+
+return_results:
+ send_ldap_result( op, rs );
+
+ switch ( rs->sr_err ) {
+ case LDAP_COMPARE_FALSE:
+ case LDAP_COMPARE_TRUE:
+ rs->sr_err = LDAP_SUCCESS;
+ break;
+ }
+
+done:
+ if ( e != NULL ) {
+ wt_entry_return( e );
+ }
+ return rs->sr_err;
+}
+
+/*
+ * Local variables:
+ * indent-tabs-mode: t
+ * tab-width: 4
+ * c-basic-offset: 4
+ * End:
+ */