diff --git a/servers/slapd/backglue.c b/servers/slapd/backglue.c
index c12d4de4e1fe63b408b9d1b8b30c8ff2f13e394f..6786f20394cd9bdf487eabec34cff0f144e8f24b 100644
--- a/servers/slapd/backglue.c
+++ b/servers/slapd/backglue.c
@@ -792,6 +792,49 @@ glue_tool_entry_next (
 	return rc;
 }
 
+static ID
+glue_tool_dn2id_get (
+	BackendDB *b0,
+	struct berval *dn
+)
+{
+	BackendDB *be, b2;
+	int rc = -1;
+
+	b2 = *b0;
+	b2.bd_info = (BackendInfo *)glue_tool_inst( b0->bd_info );
+	be = glue_back_select (&b2, dn);
+	if ( be == &b2 ) be = &toolDB;
+
+	if (!be->be_dn2id_get)
+		return NOID;
+
+	if (!glueBack) {
+		if ( be->be_entry_open ) {
+			rc = be->be_entry_open (be, glueMode);
+		}
+		if (rc != 0) {
+			return NOID;
+		}
+	} else if (be != glueBack) {
+		/* If this entry belongs in a different branch than the
+		 * previous one, close the current database and open the
+		 * new one.
+		 */
+		if ( glueBack->be_entry_close ) {
+			glueBack->be_entry_close (glueBack);
+		}
+		if ( be->be_entry_open ) {
+			rc = be->be_entry_open (be, glueMode);
+		}
+		if (rc != 0) {
+			return NOID;
+		}
+	}
+	glueBack = be;
+	return be->be_dn2id_get (be, dn);
+}
+
 static Entry *
 glue_tool_entry_get (
 	BackendDB *b0,
@@ -848,6 +891,19 @@ glue_tool_entry_put (
 	return be->be_entry_put (be, e, text);
 }
 
+static ID
+glue_tool_entry_modify (
+	BackendDB *b0,
+	Entry *e,
+	struct berval *text
+)
+{
+	if (!glueBack || !glueBack->be_entry_modify)
+		return NOID;
+
+	return glueBack->be_entry_modify (glueBack, e, text);
+}
+
 static int
 glue_tool_entry_reindex (
 	BackendDB *b0,
@@ -921,17 +977,17 @@ glue_db_init(
 		oi->oi_bi.bi_tool_entry_next = glue_tool_entry_next;
 	if ( bi->bi_tool_entry_get )
 		oi->oi_bi.bi_tool_entry_get = glue_tool_entry_get;
+	if ( bi->bi_tool_dn2id_get )
+		oi->oi_bi.bi_tool_dn2id_get = glue_tool_dn2id_get;
 	if ( bi->bi_tool_entry_put )
 		oi->oi_bi.bi_tool_entry_put = glue_tool_entry_put;
 	if ( bi->bi_tool_entry_reindex )
 		oi->oi_bi.bi_tool_entry_reindex = glue_tool_entry_reindex;
+	if ( bi->bi_tool_entry_modify )
+		oi->oi_bi.bi_tool_entry_modify = glue_tool_entry_modify;
 	if ( bi->bi_tool_sync )
 		oi->oi_bi.bi_tool_sync = glue_tool_sync;
 
-	/*FIXME : need to add support */
-	oi->oi_bi.bi_tool_dn2id_get = 0;
-	oi->oi_bi.bi_tool_entry_modify = 0;
-
 	SLAP_DBFLAGS( be ) |= SLAP_DBFLAG_GLUE_INSTANCE;
 
 	return 0;