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diff --git a/net/tipc/cluster.h b/net/tipc/cluster.h
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+++ b/net/tipc/cluster.h
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+/*
+ * net/tipc/cluster.h: Include file for TIPC cluster management routines
+ * 
+ * Copyright (c) 2000-2006, Ericsson AB
+ * Copyright (c) 2005, Wind River Systems
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _TIPC_CLUSTER_H
+#define _TIPC_CLUSTER_H
+
+#include "addr.h"
+#include "zone.h"
+
+#define LOWEST_SLAVE  2048u
+
+/**
+ * struct cluster - TIPC cluster structure
+ * @addr: network address of cluster
+ * @owner: pointer to zone that cluster belongs to
+ * @nodes: array of pointers to all nodes within cluster
+ * @highest_node: id of highest numbered node within cluster
+ * @highest_slave: (used for secondary node support)
+ */
+ 
+struct cluster {
+	u32 addr;
+	struct _zone *owner;
+	struct node **nodes;
+	u32 highest_node;
+	u32 highest_slave;
+};
+
+
+extern struct node **local_nodes;
+extern u32 highest_allowed_slave;
+extern struct node_map cluster_bcast_nodes;
+
+void cluster_remove_as_router(struct cluster *c_ptr, u32 router);
+void cluster_send_ext_routes(struct cluster *c_ptr, u32 dest);
+struct node *cluster_select_node(struct cluster *c_ptr, u32 selector);
+u32 cluster_select_router(struct cluster *c_ptr, u32 ref);
+void cluster_recv_routing_table(struct sk_buff *buf);
+struct cluster *cluster_create(u32 addr);
+void cluster_delete(struct cluster *c_ptr);
+void cluster_attach_node(struct cluster *c_ptr, struct node *n_ptr);
+void cluster_send_slave_routes(struct cluster *c_ptr, u32 dest);
+void cluster_broadcast(struct sk_buff *buf);
+int cluster_init(void);
+u32 cluster_next_node(struct cluster *c_ptr, u32 addr);
+void cluster_bcast_new_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi);
+void cluster_send_local_routes(struct cluster *c_ptr, u32 dest);
+void cluster_bcast_lost_route(struct cluster *c_ptr, u32 dest, u32 lo, u32 hi);
+
+static inline struct cluster *cluster_find(u32 addr)
+{
+	struct _zone *z_ptr = zone_find(addr);
+
+	if (z_ptr)
+		return z_ptr->clusters[1];
+	return 0;
+}
+
+#endif