/* compare.c - bdb backend compare routine */
/* $OpenLDAP$ */
-/*
- * Copyright 1998-2002 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2011 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>.
*/
#include "portable.h"
#include <ac/string.h>
#include "back-bdb.h"
-#include "external.h"
int
-bdb_compare(
- BackendDB *be,
- Connection *conn,
- Operation *op,
- struct berval *dn,
- struct berval *ndn,
- AttributeAssertion *ava
-)
+bdb_compare( Operation *op, SlapReply *rs )
{
- struct bdb_info *bdb = (struct bdb_info *) be->be_private;
- Entry *matched;
- Entry *e;
- Attribute *a;
- int rc;
- const char *text = NULL;
+ struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
+ Entry *e = NULL;
+ EntryInfo *ei;
int manageDSAit = get_manageDSAit( op );
+ DB_TXN *rtxn;
+ DB_LOCK lock;
+
+ rs->sr_err = bdb_reader_get(op, bdb->bi_dbenv, &rtxn);
+ switch(rs->sr_err) {
+ case 0:
+ break;
+ default:
+ send_ldap_error( op, rs, LDAP_OTHER, "internal error" );
+ return rs->sr_err;
+ }
+
+dn2entry_retry:
/* get entry */
- rc = bdb_dn2entry_r( be, NULL, ndn, &e, &matched, 0 );
+ rs->sr_err = bdb_dn2entry( op, rtxn, &op->o_req_ndn, &ei, 1,
+ &lock );
- switch( rc ) {
+ switch( rs->sr_err ) {
case DB_NOTFOUND:
case 0:
break;
+ case LDAP_BUSY:
+ rs->sr_text = "ldap server busy";
+ goto return_results;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto dn2entry_retry;
default:
- rc = LDAP_OTHER;
- text = "internal error";
+ rs->sr_err = LDAP_OTHER;
+ rs->sr_text = "internal error";
goto return_results;
}
- if ( e == NULL ) {
- char *matched_dn = NULL;
- BerVarray refs;
-
- if ( matched != NULL ) {
- matched_dn = ch_strdup( matched->e_dn );
- refs = is_entry_referral( matched )
- ? get_entry_referrals( be, conn, op, matched )
- : NULL;
- bdb_cache_return_entry_r( &bdb->bi_cache, matched );
- matched = NULL;
+ e = ei->bei_e;
+ if ( rs->sr_err == DB_NOTFOUND ) {
+ if ( e != NULL ) {
+ /* 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 );
+ rs->sr_ref = is_entry_referral( e )
+ ? get_entry_referrals( op, e )
+ : NULL;
+ rs->sr_err = LDAP_REFERRAL;
+ }
+
+ bdb_cache_return_entry_r( bdb, e, &lock );
+ e = NULL;
} else {
- refs = referral_rewrite( default_referral,
- NULL, dn, LDAP_SCOPE_DEFAULT );
+ rs->sr_ref = referral_rewrite( default_referral,
+ NULL, &op->o_req_dn, LDAP_SCOPE_DEFAULT );
+ rs->sr_err = rs->sr_ref ? LDAP_REFERRAL : LDAP_NO_SUCH_OBJECT;
}
- send_ldap_result( conn, op, rc = LDAP_REFERRAL,
- matched_dn, NULL, refs, NULL );
+ send_ldap_result( op, rs );
- ber_bvarray_free( refs );
- free( matched_dn );
+ ber_bvarray_free( rs->sr_ref );
+ free( (char *)rs->sr_matched );
+ rs->sr_ref = NULL;
+ rs->sr_matched = NULL;
goto done;
}
if (!manageDSAit && is_entry_referral( e ) ) {
- /* entry is a referral, don't allow add */
- BerVarray refs = get_entry_referrals( be,
- conn, op, 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", 0,
- 0, 0 );
+ Debug( LDAP_DEBUG_TRACE, "entry is referral\n", 0, 0, 0 );
- send_ldap_result( conn, op, rc = LDAP_REFERRAL,
- e->e_dn, NULL, refs, NULL );
+ send_ldap_result( op, rs );
- ber_bvarray_free( refs );
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ rs->sr_matched = NULL;
goto done;
}
- if ( ! access_allowed( be, conn, op, e,
- ava->aa_desc, &ava->aa_value, ACL_COMPARE, NULL ) )
- {
- rc = LDAP_INSUFFICIENT_ACCESS;
- goto return_results;
- }
-
- rc = LDAP_NO_SUCH_ATTRIBUTE;
-
- for(a = attrs_find( e->e_attrs, ava->aa_desc );
- a != NULL;
- a = attrs_find( a->a_next, ava->aa_desc ))
- {
- rc = LDAP_COMPARE_FALSE;
-
- if ( value_find( ava->aa_desc, a->a_vals, &ava->aa_value ) == 0 ) {
- rc = LDAP_COMPARE_TRUE;
- break;
- }
-
- }
+ rs->sr_err = slap_compare_entry( op, e, op->orc_ava );
return_results:
- send_ldap_result( conn, op, rc,
- NULL, text, NULL, NULL );
+ send_ldap_result( op, rs );
- if( rc == LDAP_COMPARE_FALSE || rc == LDAP_COMPARE_TRUE ) {
- rc = LDAP_SUCCESS;
+ switch ( rs->sr_err ) {
+ case LDAP_COMPARE_FALSE:
+ case LDAP_COMPARE_TRUE:
+ rs->sr_err = LDAP_SUCCESS;
+ break;
}
done:
/* free entry */
- if( e != NULL ) {
- bdb_cache_return_entry_r( &bdb->bi_cache, e );
+ if ( e != NULL ) {
+ bdb_cache_return_entry_r( bdb, e, &lock );
}
- return rc;
+ return rs->sr_err;
}