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