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1 | /* |
2 | * net/tipc/zone.h: Include file for TIPC zone management routines | |
3 | * | |
4 | * Copyright (c) 2003-2005, Ericsson Research Canada | |
5 | * Copyright (c) 2005, Wind River Systems | |
6 | * Copyright (c) 2005-2006, Ericsson AB | |
7 | * All rights reserved. | |
8 | * | |
9 | * Redistribution and use in source and binary forms, with or without | |
10 | * modification, are permitted provided that the following conditions are met: | |
11 | * | |
9ea1fd3c PL |
12 | * 1. Redistributions of source code must retain the above copyright |
13 | * notice, this list of conditions and the following disclaimer. | |
14 | * 2. Redistributions in binary form must reproduce the above copyright | |
15 | * notice, this list of conditions and the following disclaimer in the | |
16 | * documentation and/or other materials provided with the distribution. | |
17 | * 3. Neither the names of the copyright holders nor the names of its | |
18 | * contributors may be used to endorse or promote products derived from | |
19 | * this software without specific prior written permission. | |
20 | * | |
21 | * Alternatively, this software may be distributed under the terms of the | |
22 | * GNU General Public License ("GPL") version 2 as published by the Free | |
23 | * Software Foundation. | |
b97bf3fd PL |
24 | * |
25 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
26 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
29 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
30 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
31 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
32 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
33 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
34 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
35 | * POSSIBILITY OF SUCH DAMAGE. | |
36 | */ | |
37 | ||
38 | #ifndef _TIPC_ZONE_H | |
39 | #define _TIPC_ZONE_H | |
40 | ||
41 | #include "node_subscr.h" | |
42 | #include "net.h" | |
43 | ||
44 | ||
45 | /** | |
46 | * struct _zone - TIPC zone structure | |
47 | * @addr: network address of zone | |
48 | * @clusters: array of pointers to all clusters within zone | |
49 | * @links: (used for inter-zone communication) | |
50 | */ | |
51 | ||
52 | struct _zone { | |
53 | u32 addr; | |
54 | struct cluster *clusters[2]; /* currently limited to just 1 cluster */ | |
55 | u32 links; | |
56 | }; | |
57 | ||
58 | struct node *zone_select_remote_node(struct _zone *z_ptr, u32 addr, u32 ref); | |
59 | u32 zone_select_router(struct _zone *z_ptr, u32 addr, u32 ref); | |
60 | void zone_remove_as_router(struct _zone *z_ptr, u32 router); | |
61 | void zone_send_external_routes(struct _zone *z_ptr, u32 dest); | |
62 | struct _zone *zone_create(u32 addr); | |
63 | void zone_delete(struct _zone *z_ptr); | |
64 | void zone_attach_cluster(struct _zone *z_ptr, struct cluster *c_ptr); | |
65 | u32 zone_next_node(u32 addr); | |
66 | ||
67 | static inline struct _zone *zone_find(u32 addr) | |
68 | { | |
69 | return net.zones[tipc_zone(addr)]; | |
70 | } | |
71 | ||
72 | #endif |