xref: /openbmc/linux/net/tipc/addr.h (revision c4a54f70)
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
92