Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream

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

1 files changed, 624 insertions, 0 deletions

diff --git a/servers/slapd/back-mdb/modrdn.c b/servers/slapd/back-mdb/modrdn.c
new file mode 100644
index 0000000..5b234ba
--- /dev/null
+++ b/servers/slapd/back-mdb/modrdn.c
@@ -0,0 +1,624 @@
+/* modrdn.c - mdb backend modrdn routine */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 2000-2022 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>.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+#include <ac/string.h>
+
+#include "back-mdb.h"
+
+int
+mdb_modrdn( Operation	*op, SlapReply *rs )
+{
+	struct mdb_info *mdb = (struct mdb_info *) op->o_bd->be_private;
+	AttributeDescription *children = slap_schema.si_ad_children;
+	AttributeDescription *entry = slap_schema.si_ad_entry;
+	struct berval	p_dn, p_ndn;
+	struct berval	new_dn = {0, NULL}, new_ndn = {0, NULL};
+	Entry		*e = NULL;
+	Entry		*p = NULL;
+	/* LDAP v2 supporting correct attribute handling. */
+	char textbuf[SLAP_TEXT_BUFLEN];
+	size_t textlen = sizeof textbuf;
+	MDB_txn		*txn = NULL;
+	MDB_cursor	*mc;
+	struct mdb_op_info opinfo = {{{ 0 }}}, *moi = &opinfo;
+	Entry dummy = {0};
+
+	Entry		*np = NULL;			/* newSuperior Entry */
+	struct berval	*np_dn = NULL;			/* newSuperior dn */
+	struct berval	*np_ndn = NULL;			/* newSuperior ndn */
+	struct berval	*new_parent_dn = NULL;	/* np_dn, p_dn, or NULL */
+
+	int		manageDSAit = get_manageDSAit( op );
+
+	ID nid, nsubs;
+	LDAPControl **preread_ctrl = NULL;
+	LDAPControl **postread_ctrl = NULL;
+	LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
+	int num_ctrls = 0;
+
+	int parent_is_glue = 0;
+	int parent_is_leaf = 0;
+
+	Debug( LDAP_DEBUG_TRACE, "==>" LDAP_XSTRING(mdb_modrdn) "(%s,%s,%s)\n",
+		op->o_req_dn.bv_val,op->oq_modrdn.rs_newrdn.bv_val,
+		op->oq_modrdn.rs_newSup ? op->oq_modrdn.rs_newSup->bv_val : "NULL" );
+
+	ctrls[num_ctrls] = NULL;
+
+	/* begin transaction */
+	rs->sr_err = mdb_opinfo_get( op, mdb, 0, &moi );
+	rs->sr_text = NULL;
+	if( rs->sr_err != 0 ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(mdb_modrdn) ": txn_begin failed: "
+			"%s (%d)\n", mdb_strerror(rs->sr_err), rs->sr_err );
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "internal error";
+		goto return_results;
+	}
+	txn = moi->moi_txn;
+
+	slap_mods_opattrs( op, &op->orr_modlist, 1 );
+
+	if ( be_issuffix( op->o_bd, &op->o_req_ndn ) ) {
+#ifdef MDB_MULTIPLE_SUFFIXES
+		/* Allow renaming one suffix entry to another */
+		p_ndn = slap_empty_bv;
+#else
+		/* There can only be one suffix entry */
+		rs->sr_err = LDAP_NAMING_VIOLATION;
+		rs->sr_text = "cannot rename suffix entry";
+		goto return_results;
+#endif
+	} else {
+		dnParent( &op->o_req_ndn, &p_ndn );
+	}
+	np_ndn = &p_ndn;
+	/* Make sure parent entry exist and we can write its
+	 * children.
+	 */
+	rs->sr_err = mdb_cursor_open( txn, mdb->mi_dn2id, &mc );
+	if ( rs->sr_err != 0 ) {
+		Debug(LDAP_DEBUG_TRACE,
+			"<=- " LDAP_XSTRING(mdb_modrdn)
+			": cursor_open failed: %s (%d)\n",
+			mdb_strerror(rs->sr_err), rs->sr_err );
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "DN cursor_open failed";
+		goto return_results;
+	}
+	rs->sr_err = mdb_dn2entry( op, txn, mc, &p_ndn, &p, NULL, 0 );
+	switch( rs->sr_err ) {
+	case MDB_NOTFOUND:
+		Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(mdb_modrdn)
+			": parent does not exist\n" );
+		rs->sr_ref = referral_rewrite( default_referral, NULL,
+					&op->o_req_dn, LDAP_SCOPE_DEFAULT );
+		rs->sr_err = LDAP_REFERRAL;
+
+		send_ldap_result( op, rs );
+
+		ber_bvarray_free( rs->sr_ref );
+		goto done;
+	case 0:
+		break;
+	case LDAP_BUSY:
+		rs->sr_text = "ldap server busy";
+		goto return_results;
+	default:
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "internal error";
+		goto return_results;
+	}
+
+	/* check parent for "children" acl */
+	rs->sr_err = access_allowed( op, p,
+		children, NULL,
+		op->oq_modrdn.rs_newSup == NULL ?
+			ACL_WRITE : ACL_WDEL,
+		NULL );
+
+	if ( ! rs->sr_err ) {
+		rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+		Debug( LDAP_DEBUG_TRACE, "no access to parent\n" );
+		rs->sr_text = "no write access to parent's children";
+		goto return_results;
+	}
+
+	Debug( LDAP_DEBUG_TRACE,
+		LDAP_XSTRING(mdb_modrdn) ": wr to children "
+		"of entry %s OK\n", p_ndn.bv_val );
+
+	if ( p_ndn.bv_val == slap_empty_bv.bv_val ) {
+		p_dn = slap_empty_bv;
+	} else {
+		dnParent( &op->o_req_dn, &p_dn );
+	}
+
+	Debug( LDAP_DEBUG_TRACE,
+		LDAP_XSTRING(mdb_modrdn) ": parent dn=%s\n",
+		p_dn.bv_val );
+
+	/* get entry */
+	rs->sr_err = mdb_dn2entry( op, txn, mc, &op->o_req_ndn, &e, &nsubs, 0 );
+	switch( rs->sr_err ) {
+	case MDB_NOTFOUND:
+		e = p;
+		p = NULL;
+	case 0:
+		break;
+	case LDAP_BUSY:
+		rs->sr_text = "ldap server busy";
+		goto return_results;
+	default:
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "internal error";
+		goto return_results;
+	}
+
+	/* FIXME: dn2entry() should return non-glue entry */
+	if (( rs->sr_err == MDB_NOTFOUND ) ||
+		( !manageDSAit && e && is_entry_glue( e )))
+	{
+		if( e != NULL ) {
+			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;
+			}
+			mdb_entry_return( op, e );
+			e = NULL;
+
+		} else {
+			rs->sr_ref = referral_rewrite( default_referral, NULL,
+					&op->o_req_dn, LDAP_SCOPE_DEFAULT );
+		}
+
+		rs->sr_err = LDAP_REFERRAL;
+		send_ldap_result( op, rs );
+
+		ber_bvarray_free( rs->sr_ref );
+		free( (char *)rs->sr_matched );
+		rs->sr_ref = NULL;
+		rs->sr_matched = NULL;
+
+		goto done;
+	}
+
+	if ( get_assert( op ) &&
+		( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
+	{
+		rs->sr_err = LDAP_ASSERTION_FAILED;
+		goto return_results;
+	}
+
+	/* check write on old entry */
+	rs->sr_err = access_allowed( op, e, entry, NULL, ACL_WRITE, NULL );
+	if ( ! rs->sr_err ) {
+		Debug( LDAP_DEBUG_TRACE, "no access to entry\n" );
+		rs->sr_text = "no write access to old entry";
+		rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+		goto return_results;
+	}
+
+	if (!manageDSAit && is_entry_referral( e ) ) {
+		/* entry is a referral, don't allow rename */
+		rs->sr_ref = get_entry_referrals( op, e );
+
+		Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(mdb_modrdn)
+			": entry %s is referral\n", e->e_dn );
+
+		rs->sr_err = LDAP_REFERRAL,
+		rs->sr_matched = e->e_name.bv_val;
+		send_ldap_result( op, rs );
+
+		ber_bvarray_free( rs->sr_ref );
+		rs->sr_ref = NULL;
+		rs->sr_matched = NULL;
+		goto done;
+	}
+
+	new_parent_dn = &p_dn;	/* New Parent unless newSuperior given */
+
+	if ( op->oq_modrdn.rs_newSup != NULL ) {
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(mdb_modrdn)
+			": new parent \"%s\" requested...\n",
+			op->oq_modrdn.rs_newSup->bv_val );
+
+		/*  newSuperior == oldParent? */
+		if( dn_match( &p_ndn, op->oq_modrdn.rs_nnewSup ) ) {
+			Debug( LDAP_DEBUG_TRACE, "mdb_back_modrdn: "
+				"new parent \"%s\" same as the old parent \"%s\"\n",
+				op->oq_modrdn.rs_newSup->bv_val, p_dn.bv_val );
+			op->oq_modrdn.rs_newSup = NULL; /* ignore newSuperior */
+		}
+	}
+
+	/* There's a MDB_MULTIPLE_SUFFIXES case here that this code doesn't
+	 * support. E.g., two suffixes dc=foo,dc=com and dc=bar,dc=net.
+	 * We do not allow modDN
+	 *   dc=foo,dc=com
+	 *    newrdn dc=bar
+	 *    newsup dc=net
+	 * and we probably should. But since MULTIPLE_SUFFIXES is deprecated
+	 * I'm ignoring this problem for now.
+	 */
+	if ( op->oq_modrdn.rs_newSup != NULL ) {
+		if ( op->oq_modrdn.rs_newSup->bv_len ) {
+			np_dn = op->oq_modrdn.rs_newSup;
+			np_ndn = op->oq_modrdn.rs_nnewSup;
+
+			/* newSuperior == oldParent? - checked above */
+			/* newSuperior == entry being moved?, if so ==> ERROR */
+			if ( dnIsSuffix( np_ndn, &e->e_nname )) {
+				rs->sr_err = LDAP_NO_SUCH_OBJECT;
+				rs->sr_text = "new superior not found";
+				goto return_results;
+			}
+			/* Get Entry with dn=newSuperior. Does newSuperior exist? */
+			rs->sr_err = mdb_dn2entry( op, txn, NULL, np_ndn, &np, NULL, 0 );
+
+			switch( rs->sr_err ) {
+			case 0:
+				break;
+			case MDB_NOTFOUND:
+				Debug( LDAP_DEBUG_TRACE,
+					LDAP_XSTRING(mdb_modrdn)
+					": newSup(ndn=%s) not here!\n",
+					np_ndn->bv_val );
+				rs->sr_text = "new superior not found";
+				rs->sr_err = LDAP_NO_SUCH_OBJECT;
+				goto return_results;
+			case LDAP_BUSY:
+				rs->sr_text = "ldap server busy";
+				goto return_results;
+			default:
+				rs->sr_err = LDAP_OTHER;
+				rs->sr_text = "internal error";
+				goto return_results;
+			}
+
+			/* check newSuperior for "children" acl */
+			rs->sr_err = access_allowed( op, np, children,
+				NULL, ACL_WADD, NULL );
+
+			if( ! rs->sr_err ) {
+				Debug( LDAP_DEBUG_TRACE,
+					LDAP_XSTRING(mdb_modrdn)
+					": no wr to newSup children\n" );
+				rs->sr_text = "no write access to new superior's children";
+				rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+				goto return_results;
+			}
+
+			Debug( LDAP_DEBUG_TRACE,
+				LDAP_XSTRING(mdb_modrdn)
+				": wr to new parent OK np=%p, id=%ld\n",
+				(void *) np, (long) np->e_id );
+
+			if ( is_entry_alias( np ) ) {
+				/* parent is an alias, don't allow add */
+				Debug( LDAP_DEBUG_TRACE,
+					LDAP_XSTRING(mdb_modrdn)
+					": entry is alias\n" );
+				rs->sr_text = "new superior is an alias";
+				rs->sr_err = LDAP_ALIAS_PROBLEM;
+				goto return_results;
+			}
+
+			if ( is_entry_referral( np ) ) {
+				/* parent is a referral, don't allow add */
+				Debug( LDAP_DEBUG_TRACE,
+					LDAP_XSTRING(mdb_modrdn)
+					": entry is referral\n" );
+				rs->sr_text = "new superior is a referral";
+				rs->sr_err = LDAP_OTHER;
+				goto return_results;
+			}
+			np_dn = &np->e_name;
+
+		} else {
+			np_dn = NULL;
+
+			/* no parent, modrdn entry directly under root */
+			if ( be_issuffix( op->o_bd, (struct berval *)&slap_empty_bv )
+				|| be_isupdate( op ) ) {
+				np = (Entry *)&slap_entry_root;
+
+				/* check parent for "children" acl */
+				rs->sr_err = access_allowed( op, np,
+					children, NULL, ACL_WADD, NULL );
+
+				np = NULL;
+
+				if ( ! rs->sr_err ) {
+					rs->sr_err = LDAP_INSUFFICIENT_ACCESS;
+					Debug( LDAP_DEBUG_TRACE,
+						"no access to new superior\n" );
+					rs->sr_text =
+						"no write access to new superior's children";
+					goto return_results;
+				}
+			}
+		}
+
+		Debug( LDAP_DEBUG_TRACE,
+			LDAP_XSTRING(mdb_modrdn)
+			": wr to new parent's children OK\n" );
+
+		new_parent_dn = np_dn;
+	}
+
+	/* Build target dn and make sure target entry doesn't exist already. */
+	if (!new_dn.bv_val) {
+		build_new_dn( &new_dn, new_parent_dn, &op->oq_modrdn.rs_newrdn, op->o_tmpmemctx );
+	}
+
+	if (!new_ndn.bv_val) {
+		dnNormalize( 0, NULL, NULL, &new_dn, &new_ndn, op->o_tmpmemctx );
+	}
+
+	Debug( LDAP_DEBUG_TRACE, LDAP_XSTRING(mdb_modrdn) ": new ndn=%s\n",
+		new_ndn.bv_val );
+
+	/* Shortcut the search */
+	rs->sr_err = mdb_dn2id ( op, txn, NULL, &new_ndn, &nid, NULL, NULL, NULL );
+	switch( rs->sr_err ) {
+	case MDB_NOTFOUND:
+		break;
+	case 0:
+		/* Allow rename to same DN */
+		if ( nid == e->e_id )
+			break;
+		rs->sr_err = LDAP_ALREADY_EXISTS;
+		goto return_results;
+	default:
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "internal error";
+		goto return_results;
+	}
+
+	if( op->o_preread ) {
+		if( preread_ctrl == NULL ) {
+			preread_ctrl = &ctrls[num_ctrls++];
+			ctrls[num_ctrls] = NULL;
+		}
+		if( slap_read_controls( op, rs, e,
+			&slap_pre_read_bv, preread_ctrl ) )
+		{
+			Debug( LDAP_DEBUG_TRACE,
+				"<=- " LDAP_XSTRING(mdb_modrdn)
+				": pre-read failed!\n" );
+			if ( op->o_preread & SLAP_CONTROL_CRITICAL ) {
+				/* FIXME: is it correct to abort
+				 * operation if control fails? */
+				goto return_results;
+			}
+		}
+	}
+
+	/* delete old DN
+	 * If moving to a new parent, must delete current subtree count,
+	 * otherwise leave it unchanged since we'll be adding it right back.
+	 */
+	rs->sr_err = mdb_dn2id_delete( op, mc, e->e_id, np ? nsubs : 0 );
+	if ( rs->sr_err != 0 ) {
+		Debug(LDAP_DEBUG_TRACE,
+			"<=- " LDAP_XSTRING(mdb_modrdn)
+			": dn2id del failed: %s (%d)\n",
+			mdb_strerror(rs->sr_err), rs->sr_err );
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "DN index delete fail";
+		goto return_results;
+	}
+
+	/* copy the entry, then override some fields */
+	dummy = *e;
+	dummy.e_name = new_dn;
+	dummy.e_nname = new_ndn;
+	dummy.e_attrs = NULL;
+
+	/* add new DN */
+	rs->sr_err = mdb_dn2id_add( op, mc, mc, np ? np->e_id : p->e_id,
+		nsubs, np != NULL, &dummy );
+	if ( rs->sr_err != 0 ) {
+		Debug(LDAP_DEBUG_TRACE,
+			"<=- " LDAP_XSTRING(mdb_modrdn)
+			": dn2id add failed: %s (%d)\n",
+			mdb_strerror(rs->sr_err), rs->sr_err );
+		rs->sr_err = LDAP_OTHER;
+		rs->sr_text = "DN index add failed";
+		goto return_results;
+	}
+
+	dummy.e_attrs = e->e_attrs;
+
+	if ( op->orr_modlist != NULL ) {
+		/* modify entry */
+		rs->sr_err = mdb_modify_internal( op, txn, op->orr_modlist, &dummy,
+			&rs->sr_text, textbuf, textlen );
+		if( rs->sr_err != LDAP_SUCCESS ) {
+			Debug(LDAP_DEBUG_TRACE,
+				"<=- " LDAP_XSTRING(mdb_modrdn)
+				": modify failed: %s (%d)\n",
+				mdb_strerror(rs->sr_err), rs->sr_err );
+			goto return_results;
+		}
+	}
+
+	/* id2entry index */
+	rs->sr_err = mdb_id2entry_update( op, txn, NULL, &dummy );
+	if ( rs->sr_err != 0 ) {
+		Debug(LDAP_DEBUG_TRACE,
+			"<=- " LDAP_XSTRING(mdb_modrdn)
+			": id2entry failed: %s (%d)\n",
+			mdb_strerror(rs->sr_err), rs->sr_err );
+		if ( rs->sr_err == LDAP_ADMINLIMIT_EXCEEDED ) {
+			rs->sr_text = "entry too big";
+		} else {
+			rs->sr_err = LDAP_OTHER;
+			rs->sr_text = "entry update failed";
+		}
+		goto return_results;
+	}
+
+	if ( p_ndn.bv_len != 0 ) {
+		if ((parent_is_glue = is_entry_glue(p))) {
+			rs->sr_err = mdb_dn2id_children( op, txn, p );
+			if ( rs->sr_err != MDB_NOTFOUND ) {
+				switch( rs->sr_err ) {
+				case 0:
+					break;
+				default:
+					Debug(LDAP_DEBUG_ARGS,
+						"<=- " LDAP_XSTRING(mdb_modrdn)
+						": has_children failed: %s (%d)\n",
+						mdb_strerror(rs->sr_err), rs->sr_err );
+					rs->sr_err = LDAP_OTHER;
+					rs->sr_text = "internal error";
+					goto return_results;
+				}
+			} else {
+				parent_is_leaf = 1;
+			}
+		}
+		mdb_entry_return( op, p );
+		p = NULL;
+	}
+
+	if( op->o_postread ) {
+		if( postread_ctrl == NULL ) {
+			postread_ctrl = &ctrls[num_ctrls++];
+			ctrls[num_ctrls] = NULL;
+		}
+		if( slap_read_controls( op, rs, &dummy,
+			&slap_post_read_bv, postread_ctrl ) )
+		{
+			Debug( LDAP_DEBUG_TRACE,
+				"<=- " LDAP_XSTRING(mdb_modrdn)
+				": post-read failed!\n" );
+			if ( op->o_postread & SLAP_CONTROL_CRITICAL ) {
+				/* FIXME: is it correct to abort
+				 * operation if control fails? */
+				goto return_results;
+			}
+		}
+	}
+
+	if( moi == &opinfo ) {
+		LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
+		opinfo.moi_oe.oe_key = NULL;
+		if( op->o_noop ) {
+			mdb_txn_abort( txn );
+			rs->sr_err = LDAP_X_NO_OPERATION;
+			txn = NULL;
+			goto return_results;
+
+		} else {
+			if(( rs->sr_err=mdb_txn_commit( txn )) != 0 ) {
+				rs->sr_text = "txn_commit failed";
+			} else {
+				rs->sr_err = LDAP_SUCCESS;
+			}
+			txn = NULL;
+		}
+	}
+
+	if( rs->sr_err != LDAP_SUCCESS ) {
+		Debug( LDAP_DEBUG_ANY,
+			LDAP_XSTRING(mdb_modrdn) ": %s : %s (%d)\n",
+			rs->sr_text, mdb_strerror(rs->sr_err), rs->sr_err );
+		rs->sr_err = LDAP_OTHER;
+
+		goto return_results;
+	}
+
+	Debug(LDAP_DEBUG_TRACE,
+		LDAP_XSTRING(mdb_modrdn)
+		": rdn modified%s id=%08lx dn=\"%s\"\n",
+		op->o_noop ? " (no-op)" : "",
+		dummy.e_id, op->o_req_dn.bv_val );
+	rs->sr_text = NULL;
+	if( num_ctrls ) rs->sr_ctrls = ctrls;
+
+return_results:
+	if ( e != NULL && dummy.e_attrs != e->e_attrs ) {
+		attrs_free( dummy.e_attrs );
+	}
+	send_ldap_result( op, rs );
+
+#if 0
+	if( rs->sr_err == LDAP_SUCCESS && mdb->bi_txn_cp_kbyte ) {
+		TXN_CHECKPOINT( mdb->bi_dbenv,
+			mdb->bi_txn_cp_kbyte, mdb->bi_txn_cp_min, 0 );
+	}
+#endif
+
+	if ( rs->sr_err == LDAP_SUCCESS && parent_is_glue && parent_is_leaf ) {
+		op->o_delete_glue_parent = 1;
+	}
+
+done:
+	slap_graduate_commit_csn( op );
+
+	if( new_ndn.bv_val != NULL ) op->o_tmpfree( new_ndn.bv_val, op->o_tmpmemctx );
+	if( new_dn.bv_val != NULL ) op->o_tmpfree( new_dn.bv_val, op->o_tmpmemctx );
+
+	/* LDAP v3 Support */
+	if( np != NULL ) {
+		/* free new parent */
+		mdb_entry_return( op, np );
+	}
+
+	if( p != NULL ) {
+		/* free parent */
+		mdb_entry_return( op, p );
+	}
+
+	/* free entry */
+	if( e != NULL ) {
+		mdb_entry_return( op, e );
+	}
+
+	if( moi == &opinfo ) {
+		if( txn != NULL ) {
+			mdb_txn_abort( txn );
+		}
+		if ( opinfo.moi_oe.oe_key ) {
+			LDAP_SLIST_REMOVE( &op->o_extra, &opinfo.moi_oe, OpExtra, oe_next );
+		}
+	} else {
+		moi->moi_ref--;
+	}
+
+	if( preread_ctrl != NULL && (*preread_ctrl) != NULL ) {
+		slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
+		slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
+	}
+	if( postread_ctrl != NULL && (*postread_ctrl) != NULL ) {
+		slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
+		slap_sl_free( *postread_ctrl, op->o_tmpmemctx );
+	}
+	return rs->sr_err;
+}