| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 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 |