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 * Copyright (c) 2020, Red Hat Inc 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions are met: 11 * 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the names of the copyright holders nor the names of its 18 * contributors may be used to endorse or promote products derived from 19 * this software without specific prior written permission. 20 * 21 * Alternatively, this software may be distributed under the terms of the 22 * GNU General Public License ("GPL") version 2 as published by the Free 23 * Software Foundation. 24 * 25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 35 * POSSIBILITY OF SUCH DAMAGE. 36 */ 37 38 #ifndef _TIPC_ADDR_H 39 #define _TIPC_ADDR_H 40 41 #include <linux/types.h> 42 #include <linux/tipc.h> 43 #include <net/net_namespace.h> 44 #include <net/netns/generic.h> 45 #include "core.h" 46 47 static inline u32 tipc_own_addr(struct net *net) 48 { 49 return tipc_net(net)->node_addr; 50 } 51 52 static inline u8 *tipc_own_id(struct net *net) 53 { 54 struct tipc_net *tn = tipc_net(net); 55 56 if (!strlen(tn->node_id_string)) 57 return NULL; 58 return tn->node_id; 59 } 60 61 static inline char *tipc_own_id_string(struct net *net) 62 { 63 return tipc_net(net)->node_id_string; 64 } 65 66 static inline u32 tipc_cluster_mask(u32 addr) 67 { 68 return addr & TIPC_ZONE_CLUSTER_MASK; 69 } 70 71 static inline int tipc_node2scope(u32 node) 72 { 73 return node ? TIPC_NODE_SCOPE : TIPC_CLUSTER_SCOPE; 74 } 75 76 static inline int tipc_scope2node(struct net *net, int sc) 77 { 78 return sc != TIPC_NODE_SCOPE ? 0 : tipc_own_addr(net); 79 } 80 81 static inline int in_own_node(struct net *net, u32 addr) 82 { 83 return addr == tipc_own_addr(net) || !addr; 84 } 85 86 bool tipc_in_scope(bool legacy_format, u32 domain, u32 addr); 87 void tipc_set_node_id(struct net *net, u8 *id); 88 void tipc_set_node_addr(struct net *net, u32 addr); 89 char *tipc_nodeid2string(char *str, u8 *id); 90 u32 tipc_node_id2hash(u8 *id128); 91 92 #endif 93