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b97bf3fd PL |
1 | /* |
2 | * net/tipc/addr.h: Include file for TIPC address utility routines | |
c4307285 | 3 | * |
593a5f22 | 4 | * Copyright (c) 2000-2006, Ericsson AB |
b97bf3fd | 5 | * Copyright (c) 2004-2005, Wind River Systems |
b97bf3fd PL |
6 | * All rights reserved. |
7 | * | |
9ea1fd3c | 8 | * Redistribution and use in source and binary forms, with or without |
b97bf3fd PL |
9 | * modification, are permitted provided that the following conditions are met: |
10 | * | |
9ea1fd3c PL |
11 | * 1. Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. | |
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. | |
b97bf3fd | 19 | * |
9ea1fd3c PL |
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. | |
23 | * | |
24 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
25 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
26 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
27 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE | |
28 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
29 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
30 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
31 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
32 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
33 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
b97bf3fd PL |
34 | * POSSIBILITY OF SUCH DAMAGE. |
35 | */ | |
36 | ||
37 | #ifndef _TIPC_ADDR_H | |
38 | #define _TIPC_ADDR_H | |
39 | ||
b3f0f5c3 AB |
40 | #include "core.h" |
41 | ||
1f3de471 PG |
42 | #define TIPC_ZONE_MASK 0xff000000u |
43 | #define TIPC_CLUSTER_MASK 0xfffff000u | |
44 | ||
a3796f89 AS |
45 | static inline u32 tipc_zone_mask(u32 addr) |
46 | { | |
1f3de471 | 47 | return addr & TIPC_ZONE_MASK; |
a3796f89 AS |
48 | } |
49 | ||
50 | static inline u32 tipc_cluster_mask(u32 addr) | |
51 | { | |
1f3de471 | 52 | return addr & TIPC_CLUSTER_MASK; |
a3796f89 AS |
53 | } |
54 | ||
336ebf5b | 55 | static inline int in_own_cluster_exact(u32 addr) |
b97bf3fd PL |
56 | { |
57 | return !((addr ^ tipc_own_addr) >> 12); | |
58 | } | |
59 | ||
336ebf5b AS |
60 | /** |
61 | * in_own_node - test for node inclusion; <0.0.0> always matches | |
62 | */ | |
336ebf5b AS |
63 | static inline int in_own_node(u32 addr) |
64 | { | |
65 | return (addr == tipc_own_addr) || !addr; | |
66 | } | |
67 | ||
68 | /** | |
69 | * in_own_cluster - test for cluster inclusion; <0.0.0> always matches | |
70 | */ | |
336ebf5b AS |
71 | static inline int in_own_cluster(u32 addr) |
72 | { | |
73 | return in_own_cluster_exact(addr) || !addr; | |
74 | } | |
75 | ||
b97bf3fd PL |
76 | /** |
77 | * addr_domain - convert 2-bit scope value to equivalent message lookup domain | |
c4307285 YH |
78 | * |
79 | * Needed when address of a named message must be looked up a second time | |
b97bf3fd PL |
80 | * after a network hop. |
81 | */ | |
a3796f89 | 82 | static inline u32 addr_domain(u32 sc) |
b97bf3fd PL |
83 | { |
84 | if (likely(sc == TIPC_NODE_SCOPE)) | |
85 | return tipc_own_addr; | |
86 | if (sc == TIPC_CLUSTER_SCOPE) | |
a3796f89 AS |
87 | return tipc_cluster_mask(tipc_own_addr); |
88 | return tipc_zone_mask(tipc_own_addr); | |
b97bf3fd PL |
89 | } |
90 | ||
4323add6 PL |
91 | int tipc_addr_domain_valid(u32); |
92 | int tipc_addr_node_valid(u32 addr); | |
80e0c330 AS |
93 | int tipc_in_scope(u32 domain, u32 addr); |
94 | int tipc_addr_scope(u32 domain); | |
95 | char *tipc_addr_string_fill(char *string, u32 addr); | |
b97bf3fd | 96 | #endif |