LXR linux/net/tipc/addr.h

   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
  46static inline u32 tipc_own_addr(struct net *net)
  47{
  48        return tipc_net(net)->node_addr;
  49}
  50
  51static 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
  60static inline char *tipc_own_id_string(struct net *net)
  61{
  62        return tipc_net(net)->node_id_string;
  63}
  64
  65static inline u32 tipc_cluster_mask(u32 addr)
  66{
  67        return addr & TIPC_ZONE_CLUSTER_MASK;
  68}
  69
  70static inline int tipc_node2scope(u32 node)
  71{
  72        return node ? TIPC_NODE_SCOPE : TIPC_CLUSTER_SCOPE;
  73}
  74
  75static inline int tipc_scope2node(struct net *net, int sc)
  76{
  77        return sc != TIPC_NODE_SCOPE ? 0 : tipc_own_addr(net);
  78}
  79
  80static inline int in_own_node(struct net *net, u32 addr)
  81{
  82        return addr == tipc_own_addr(net) || !addr;
  83}
  84
  85bool tipc_in_scope(bool legacy_format, u32 domain, u32 addr);
  86void tipc_set_node_id(struct net *net, u8 *id);
  87void tipc_set_node_addr(struct net *net, u32 addr);
  88char *tipc_nodeid2string(char *str, u8 *id);
  89u32 tipc_node_id2hash(u8 *id128);
  90
  91#endif
  92