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/*
* net/tipc/zone.h: Include file for TIPC zone management routines
*
* Copyright (c) 2003-2006, 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_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
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