1 /*
2 * net/tipc/addr.h: Include file for TIPC address utility routines
3 *
4 * Copyright (c) 2000-2006, 2018, Ericsson AB
5 * Copyright (c) 2004-2005, Wind River Systems
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
10 *
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.
19 *
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
34 * POSSIBILITY OF SUCH DAMAGE.
35 */
36
37 #ifndef _TIPC_ADDR_H
38 #define _TIPC_ADDR_H
39
40 #include <linux/types.h>
41 #include <linux/tipc.h>
42 #include <net/net_namespace.h>
43 #include <net/netns/generic.h>
44 #include "core.h"
45
46 static inline u32 tipc_own_addr(struct net *net)
47 {
48 return tipc_net(net)->node_addr;
49 }
50
51 static inline u8 *tipc_own_id(struct net *net)
52 {
53 struct tipc_net *tn = tipc_net(net);
54
55 if (!strlen(tn->node_id_string))
56 return NULL;
57 return tn->node_id;
58 }
59
60 static inline char *tipc_own_id_string(struct net *net)
61 {
62 return tipc_net(net)->node_id_string;
63 }
64
65 static inline u32 tipc_cluster_mask(u32 addr)
66 {
67 return addr & TIPC_ZONE_CLUSTER_MASK;
68 }
69
70 static inline int tipc_node2scope(u32 node)
71 {
72 return node ? TIPC_NODE_SCOPE : TIPC_CLUSTER_SCOPE;
73 }
74
75 static inline int tipc_scope2node(struct net *net, int sc)
76 {
77 return sc != TIPC_NODE_SCOPE ? 0 : tipc_own_addr(net);
78 }
79
80 static inline int in_own_node(struct net *net, u32 addr)
81 {
82 return addr == tipc_own_addr(net) || !addr;
83 }
84
85 bool tipc_in_scope(bool legacy_format, u32 domain, u32 addr);
86 void tipc_set_node_id(struct net *net, u8 *id);
87 void tipc_set_node_addr(struct net *net, u32 addr);
88 char *tipc_nodeid2string(char *str, u8 *id);
89 u32 tipc_node_id2hash(u8 *id128);
90
91 #endif