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