1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * net/tipc/addr.h: Include file for TIPC address utility routines
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Copyright (c) 2000-2006, 2018, Ericsson AB
5*4882a593Smuzhiyun * Copyright (c) 2004-2005, Wind River Systems
6*4882a593Smuzhiyun * All rights reserved.
7*4882a593Smuzhiyun *
8*4882a593Smuzhiyun * Redistribution and use in source and binary forms, with or without
9*4882a593Smuzhiyun * modification, are permitted provided that the following conditions are met:
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * 1. Redistributions of source code must retain the above copyright
12*4882a593Smuzhiyun * notice, this list of conditions and the following disclaimer.
13*4882a593Smuzhiyun * 2. Redistributions in binary form must reproduce the above copyright
14*4882a593Smuzhiyun * notice, this list of conditions and the following disclaimer in the
15*4882a593Smuzhiyun * documentation and/or other materials provided with the distribution.
16*4882a593Smuzhiyun * 3. Neither the names of the copyright holders nor the names of its
17*4882a593Smuzhiyun * contributors may be used to endorse or promote products derived from
18*4882a593Smuzhiyun * this software without specific prior written permission.
19*4882a593Smuzhiyun *
20*4882a593Smuzhiyun * Alternatively, this software may be distributed under the terms of the
21*4882a593Smuzhiyun * GNU General Public License ("GPL") version 2 as published by the Free
22*4882a593Smuzhiyun * Software Foundation.
23*4882a593Smuzhiyun *
24*4882a593Smuzhiyun * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
25*4882a593Smuzhiyun * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
26*4882a593Smuzhiyun * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
27*4882a593Smuzhiyun * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
28*4882a593Smuzhiyun * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
29*4882a593Smuzhiyun * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
30*4882a593Smuzhiyun * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
31*4882a593Smuzhiyun * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
32*4882a593Smuzhiyun * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
33*4882a593Smuzhiyun * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
34*4882a593Smuzhiyun * POSSIBILITY OF SUCH DAMAGE.
35*4882a593Smuzhiyun */
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun #ifndef _TIPC_ADDR_H
38*4882a593Smuzhiyun #define _TIPC_ADDR_H
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun #include <linux/types.h>
41*4882a593Smuzhiyun #include <linux/tipc.h>
42*4882a593Smuzhiyun #include <net/net_namespace.h>
43*4882a593Smuzhiyun #include <net/netns/generic.h>
44*4882a593Smuzhiyun #include "core.h"
45*4882a593Smuzhiyun
tipc_own_addr(struct net * net)46*4882a593Smuzhiyun static inline u32 tipc_own_addr(struct net *net)
47*4882a593Smuzhiyun {
48*4882a593Smuzhiyun return tipc_net(net)->node_addr;
49*4882a593Smuzhiyun }
50*4882a593Smuzhiyun
tipc_own_id(struct net * net)51*4882a593Smuzhiyun static inline u8 *tipc_own_id(struct net *net)
52*4882a593Smuzhiyun {
53*4882a593Smuzhiyun struct tipc_net *tn = tipc_net(net);
54*4882a593Smuzhiyun
55*4882a593Smuzhiyun if (!strlen(tn->node_id_string))
56*4882a593Smuzhiyun return NULL;
57*4882a593Smuzhiyun return tn->node_id;
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun
tipc_own_id_string(struct net * net)60*4882a593Smuzhiyun static inline char *tipc_own_id_string(struct net *net)
61*4882a593Smuzhiyun {
62*4882a593Smuzhiyun return tipc_net(net)->node_id_string;
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun
tipc_cluster_mask(u32 addr)65*4882a593Smuzhiyun static inline u32 tipc_cluster_mask(u32 addr)
66*4882a593Smuzhiyun {
67*4882a593Smuzhiyun return addr & TIPC_ZONE_CLUSTER_MASK;
68*4882a593Smuzhiyun }
69*4882a593Smuzhiyun
tipc_node2scope(u32 node)70*4882a593Smuzhiyun static inline int tipc_node2scope(u32 node)
71*4882a593Smuzhiyun {
72*4882a593Smuzhiyun return node ? TIPC_NODE_SCOPE : TIPC_CLUSTER_SCOPE;
73*4882a593Smuzhiyun }
74*4882a593Smuzhiyun
tipc_scope2node(struct net * net,int sc)75*4882a593Smuzhiyun static inline int tipc_scope2node(struct net *net, int sc)
76*4882a593Smuzhiyun {
77*4882a593Smuzhiyun return sc != TIPC_NODE_SCOPE ? 0 : tipc_own_addr(net);
78*4882a593Smuzhiyun }
79*4882a593Smuzhiyun
in_own_node(struct net * net,u32 addr)80*4882a593Smuzhiyun static inline int in_own_node(struct net *net, u32 addr)
81*4882a593Smuzhiyun {
82*4882a593Smuzhiyun return addr == tipc_own_addr(net) || !addr;
83*4882a593Smuzhiyun }
84*4882a593Smuzhiyun
85*4882a593Smuzhiyun bool tipc_in_scope(bool legacy_format, u32 domain, u32 addr);
86*4882a593Smuzhiyun void tipc_set_node_id(struct net *net, u8 *id);
87*4882a593Smuzhiyun void tipc_set_node_addr(struct net *net, u32 addr);
88*4882a593Smuzhiyun char *tipc_nodeid2string(char *str, u8 *id);
89*4882a593Smuzhiyun u32 tipc_node_id2hash(u8 *id128);
90*4882a593Smuzhiyun
91*4882a593Smuzhiyun #endif
92