1 files changed, 68 insertions, 0 deletions

diff --git a/net/tipc/zone.h b/net/tipc/zone.h
new file mode 100644
index 000000000000..19fd51a8bd2b
--- /dev/null
+++ b/net/tipc/zone.h
@@ -0,0 +1,68 @@
+/*
+ * net/tipc/zone.h: Include file for TIPC zone management routines
+ * 
+ * Copyright (c) 2003-2005, Ericsson Research Canada
+ * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005-2006, Ericsson AB
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * 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.
+ * 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.
+ *
+ * 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_ZONE_H
+#define _TIPC_ZONE_H
+
+#include "node_subscr.h"
+#include "net.h"
+
+
+/**
+ * struct _zone - TIPC zone structure
+ * @addr: network address of zone
+ * @clusters: array of pointers to all clusters within zone
+ * @links: (used for inter-zone communication)
+ */
+ 
+struct _zone {
+        u32 addr;
+        struct cluster *clusters[2]; /* currently limited to just 1 cluster */
+        u32 links;
+};
+
+struct node *zone_select_remote_node(struct _zone *z_ptr, u32 addr, u32 ref);
+u32 zone_select_router(struct _zone *z_ptr, u32 addr, u32 ref);
+void zone_remove_as_router(struct _zone *z_ptr, u32 router);
+void zone_send_external_routes(struct _zone *z_ptr, u32 dest);
+struct _zone *zone_create(u32 addr);
+void zone_delete(struct _zone *z_ptr);
+void zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr);
+u32 zone_next_node(u32 addr);
+
+static inline struct _zone *zone_find(u32 addr)
+{
+        return net.zones[tipc_zone(addr)];
+}
+
+#endif