Adding upstream version 2.4.57+dfsg.upstream/2.4.57+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 169 insertions, 0 deletions

diff --git a/servers/slapd/back-ndb/compare.cpp b/servers/slapd/back-ndb/compare.cpp
new file mode 100644
index 0000000..684b97c
--- /dev/null
+++ b/servers/slapd/back-ndb/compare.cpp
@@ -0,0 +1,169 @@
+/* compare.cpp - ndb backend compare routine */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2008-2021 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 initially developed by Howard Chu for inclusion
+ * in OpenLDAP Software. This work was sponsored by MySQL.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/string.h>
+
+#include "back-ndb.h"
+
+int
+ndb_back_compare( Operation *op, SlapReply *rs )
+{
+	struct ndb_info *ni = (struct ndb_info *) op->o_bd->be_private;
+	Entry		e = {0};
+	Attribute	*a;
+	int		manageDSAit = get_manageDSAit( op );
+
+	NdbArgs NA;
+	NdbRdns rdns;
+	struct berval matched;
+
+	/* Get our NDB handle */
+	rs->sr_err = ndb_thread_handle( op, &NA.ndb );
+
+	rdns.nr_num = 0;
+	NA.rdns = &rdns;
+	e.e_name = op->o_req_dn;
+	e.e_nname = op->o_req_ndn;
+	NA.e = &e;
+
+dn2entry_retry:
+	NA.txn = NA.ndb->startTransaction();
+	rs->sr_text = NULL;
+	if( !NA.txn ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(ndb_compare) ": startTransaction failed: %s (%d)\n",
+			NA.ndb->getNdbError().message, NA.ndb->getNdbError().code, 0 );
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "internal error";
+		goto return_results;
+	}
+
+	NA.ocs = NULL;
+	/* get entry */
+	rs->sr_err = ndb_entry_get_info( op, &NA, 0, &matched );
+	switch( rs->sr_err ) {
+	case 0:
+		break;
+	case LDAP_NO_SUCH_OBJECT:
+		rs->sr_matched = matched.bv_val;
+		if ( NA.ocs )
+			ndb_check_referral( op, rs, &NA );
+		goto return_results;
+	case LDAP_BUSY:
+		rs->sr_text = "ldap server busy";
+		goto return_results;
+#if 0
+	case DB_LOCK_DEADLOCK:
+	case DB_LOCK_NOTGRANTED:
+		goto dn2entry_retry;
+#endif
+	default:
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "internal error";
+		goto return_results;
+	}
+
+	rs->sr_err = ndb_entry_get_data( op, &NA, 0 );
+	ber_bvarray_free_x( NA.ocs, op->o_tmpmemctx );
+	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;
+			rs->sr_flags |= REP_REF_MUSTBEFREED;
+		}
+
+		Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0, 0, 0 );
+		goto return_results;
+	}
+
+	if ( get_assert( op ) &&
+		( test_filter( op, &e, (Filter *)get_assertion( op )) != LDAP_COMPARE_TRUE ))
+	{
+		if ( !access_allowed( op, &e, slap_schema.si_ad_entry,
+			NULL, ACL_DISCLOSE, NULL ) )
+		{
+			rs->sr_err = LDAP_NO_SUCH_OBJECT;
+		} else {
+			rs->sr_err = LDAP_ASSERTION_FAILED;
+		}
+		goto return_results;
+	}
+
+	if ( !access_allowed( op, &e, op->oq_compare.rs_ava->aa_desc,
+		&op->oq_compare.rs_ava->aa_value, ACL_COMPARE, NULL ) )
+	{
+		/* return error 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_err = LDAP_INSUFFICIENT_ACCESS;
+		}
+		goto return_results;
+	}
+
+	rs->sr_err = LDAP_NO_SUCH_ATTRIBUTE;
+
+	for ( a = attrs_find( e.e_attrs, op->oq_compare.rs_ava->aa_desc );
+		a != NULL;
+		a = attrs_find( a->a_next, op->oq_compare.rs_ava->aa_desc ) )
+	{
+		rs->sr_err = LDAP_COMPARE_FALSE;
+
+		if ( attr_valfind( a,
+			SLAP_MR_ATTRIBUTE_VALUE_NORMALIZED_MATCH |
+				SLAP_MR_ASSERTED_VALUE_NORMALIZED_MATCH,
+			&op->oq_compare.rs_ava->aa_value, NULL,
+			op->o_tmpmemctx ) == 0 )
+		{
+			rs->sr_err = LDAP_COMPARE_TRUE;
+			break;
+		}
+	}
+
+return_results:
+	NA.txn->close();
+	if ( e.e_attrs ) {
+		attrs_free( e.e_attrs );
+		e.e_attrs = NULL;
+	}
+	send_ldap_result( op, rs );
+
+	switch ( rs->sr_err ) {
+	case LDAP_COMPARE_FALSE:
+	case LDAP_COMPARE_TRUE:
+		rs->sr_err = LDAP_SUCCESS;
+		break;
+	}
+
+	return rs->sr_err;
+}