2 * net/tipc/zone.c: TIPC zone management routines
4 * Copyright (c) 2000-2006, Ericsson AB
5 * Copyright (c) 2005, Wind River Systems
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9 * modification, are permitted provided that the following conditions are met:
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13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the names of the copyright holders nor the names of its
17 * contributors may be used to endorse or promote products derived from
18 * this software without specific prior written permission.
20 * Alternatively, this software may be distributed under the terms of the
21 * GNU General Public License ("GPL") version 2 as published by the Free
22 * Software Foundation.
24 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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41 #include "node_subscr.h"
45 struct _zone
*tipc_zone_create(u32 addr
)
47 struct _zone
*z_ptr
= NULL
;
50 if (!tipc_addr_domain_valid(addr
))
53 z_ptr
= (struct _zone
*)kmalloc(sizeof(*z_ptr
), GFP_ATOMIC
);
55 memset(z_ptr
, 0, sizeof(*z_ptr
));
56 z_num
= tipc_zone(addr
);
57 z_ptr
->addr
= tipc_addr(z_num
, 0, 0);
58 tipc_net
.zones
[z_num
] = z_ptr
;
63 void tipc_zone_delete(struct _zone
*z_ptr
)
69 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
70 tipc_cltr_delete(z_ptr
->clusters
[c_num
]);
75 void tipc_zone_attach_cluster(struct _zone
*z_ptr
, struct cluster
*c_ptr
)
77 u32 c_num
= tipc_cluster(c_ptr
->addr
);
80 assert(c_num
<= tipc_max_clusters
);
81 assert(z_ptr
->clusters
[c_num
] == 0);
82 z_ptr
->clusters
[c_num
] = c_ptr
;
85 void tipc_zone_remove_as_router(struct _zone
*z_ptr
, u32 router
)
89 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
90 if (z_ptr
->clusters
[c_num
]) {
91 tipc_cltr_remove_as_router(z_ptr
->clusters
[c_num
],
97 void tipc_zone_send_external_routes(struct _zone
*z_ptr
, u32 dest
)
101 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
102 if (z_ptr
->clusters
[c_num
]) {
103 if (in_own_cluster(z_ptr
->addr
))
105 tipc_cltr_send_ext_routes(z_ptr
->clusters
[c_num
], dest
);
110 struct node
*tipc_zone_select_remote_node(struct _zone
*z_ptr
, u32 addr
, u32 ref
)
112 struct cluster
*c_ptr
;
118 c_ptr
= z_ptr
->clusters
[tipc_cluster(addr
)];
121 n_ptr
= tipc_cltr_select_node(c_ptr
, ref
);
125 /* Links to any other clusters within this zone ? */
126 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
127 c_ptr
= z_ptr
->clusters
[c_num
];
130 n_ptr
= tipc_cltr_select_node(c_ptr
, ref
);
137 u32
tipc_zone_select_router(struct _zone
*z_ptr
, u32 addr
, u32 ref
)
139 struct cluster
*c_ptr
;
145 c_ptr
= z_ptr
->clusters
[tipc_cluster(addr
)];
146 router
= c_ptr
? tipc_cltr_select_router(c_ptr
, ref
) : 0;
150 /* Links to any other clusters within the zone? */
151 for (c_num
= 1; c_num
<= tipc_max_clusters
; c_num
++) {
152 c_ptr
= z_ptr
->clusters
[c_num
];
153 router
= c_ptr
? tipc_cltr_select_router(c_ptr
, ref
) : 0;
161 u32
tipc_zone_next_node(u32 addr
)
163 struct cluster
*c_ptr
= tipc_cltr_find(addr
);
166 return tipc_cltr_next_node(c_ptr
, addr
);