1 files changed, 123 insertions, 0 deletions
diff --git a/servers/slapd/back-ldap/modrdn.c b/servers/slapd/back-ldap/modrdn.c
new file mode 100644
index 0000000..d52cc9e
--- /dev/null
+++ b/servers/slapd/back-ldap/modrdn.c
@@ -0,0 +1,123 @@
+/* modrdn.c - ldap backend modrdn function */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1999-2021 The OpenLDAP Foundation.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * Portions Copyright 2000-2003 Pierangelo Masarati.
+ * 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 the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/socket.h>
+#include <ac/string.h>
+
+#include "slap.h"
+#include "back-ldap.h"
+
+int
+ldap_back_modrdn(
+		Operation	*op,
+ 		SlapReply	*rs )
+{
+	ldapinfo_t		*li = (ldapinfo_t *)op->o_bd->be_private;
+
+	ldapconn_t		*lc = NULL;
+	ber_int_t		msgid;
+	LDAPControl		**ctrls = NULL;
+	ldap_back_send_t	retrying = LDAP_BACK_RETRYING;
+	int			rc = LDAP_SUCCESS;
+	char			*newSup = NULL;
+	struct berval		newrdn = BER_BVNULL;
+
+	if ( !ldap_back_dobind( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
+		return rs->sr_err;
+	}
+
+	if ( op->orr_newSup ) {
+		/* needs LDAPv3 */
+		switch ( li->li_version ) {
+		case LDAP_VERSION3:
+			break;
+
+		case 0:
+			if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) {
+				break;
+			}
+			/* fall thru */
+
+		default:
+			/* op->o_protocol cannot be anything but LDAPv3,
+			 * otherwise wouldn't be here */
+			rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
+			send_ldap_result( op, rs );
+			goto cleanup;
+		}
+		
+		newSup = op->orr_newSup->bv_val;
+	}
+
+	/* NOTE: we need to copy the newRDN in case it was formed
+	 * from a DN by simply changing the length (ITS#5397) */
+	newrdn = op->orr_newrdn;
+	if ( newrdn.bv_val[ newrdn.bv_len ] != '\0' ) {
+		ber_dupbv_x( &newrdn, &op->orr_newrdn, op->o_tmpmemctx );
+	}
+
+retry:
+	ctrls = op->o_ctrls;
+	rc = ldap_back_controls_add( op, rs, lc, &ctrls );
+	if ( rc != LDAP_SUCCESS ) {
+		send_ldap_result( op, rs );
+		goto cleanup;
+	}
+
+	rs->sr_err = ldap_rename( lc->lc_ld, op->o_req_dn.bv_val,
+			newrdn.bv_val, newSup,
+			op->orr_deleteoldrdn, ctrls, NULL, &msgid );
+	rc = ldap_back_op_result( lc, op, rs, msgid,
+		li->li_timeout[ SLAP_OP_MODRDN ],
+		( LDAP_BACK_SENDRESULT | retrying ) );
+	if ( rs->sr_err == LDAP_UNAVAILABLE && retrying ) {
+		retrying &= ~LDAP_BACK_RETRYING;
+		if ( ldap_back_retry( &lc, op, rs, LDAP_BACK_SENDERR ) ) {
+			/* if the identity changed, there might be need to re-authz */
+			(void)ldap_back_controls_free( op, rs, &ctrls );
+			goto retry;
+		}
+	}
+
+	ldap_pvt_thread_mutex_lock( &li->li_counter_mutex );
+	ldap_pvt_mp_add( li->li_ops_completed[ SLAP_OP_MODRDN ], 1 );
+	ldap_pvt_thread_mutex_unlock( &li->li_counter_mutex );
+
+cleanup:
+	(void)ldap_back_controls_free( op, rs, &ctrls );
+
+	if ( newrdn.bv_val != op->orr_newrdn.bv_val ) {
+		op->o_tmpfree( newrdn.bv_val, op->o_tmpmemctx );
+	}
+
+	if ( lc != NULL ) {
+		ldap_back_release_conn( li, lc );
+	}
+
+	return rs->sr_err;
+}
+