Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 1 | /* |
| 2 | * net/tipc/core.c: TIPC module code |
| 3 | * |
Ying Xue | c61dd61 | 2014-02-13 17:29:09 -0500 | [diff] [blame] | 4 | * Copyright (c) 2003-2006, 2013, Ericsson AB |
Ying Xue | 13a2e89 | 2013-06-17 10:54:40 -0400 | [diff] [blame] | 5 | * Copyright (c) 2005-2006, 2010-2013, Wind River Systems |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 6 | * All rights reserved. |
| 7 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 8 | * Redistribution and use in source and binary forms, with or without |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 9 | * modification, are permitted provided that the following conditions are met: |
| 10 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 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. |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 19 | * |
Per Liden | 9ea1fd3 | 2006-01-11 13:30:43 +0100 | [diff] [blame] | 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 |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 34 | * POSSIBILITY OF SUCH DAMAGE. |
| 35 | */ |
| 36 | |
Ying Xue | 07f6c4b | 2015-01-07 13:41:58 +0800 | [diff] [blame] | 37 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
| 38 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 39 | #include "core.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 40 | #include "name_table.h" |
| 41 | #include "subscr.h" |
Richard Alpe | 22ae7cf | 2015-02-09 09:50:18 +0100 | [diff] [blame] | 42 | #include "bearer.h" |
| 43 | #include "net.h" |
Jon Paul Maloy | 2e84c60b | 2014-08-22 18:09:18 -0400 | [diff] [blame] | 44 | #include "socket.h" |
Jon Paul Maloy | 5fd9fd6 | 2015-10-22 08:51:35 -0400 | [diff] [blame] | 45 | #include "bcast.h" |
Hoang Le | ff2ebbf | 2019-03-19 18:49:49 +0700 | [diff] [blame] | 46 | #include "node.h" |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 47 | |
Erik Hugne | 2cf8aa1 | 2012-06-29 00:16:37 -0400 | [diff] [blame] | 48 | #include <linux/module.h> |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 49 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 50 | /* configurable TIPC parameters */ |
Alexey Dobriyan | c7d03a0 | 2016-11-17 04:58:21 +0300 | [diff] [blame] | 51 | unsigned int tipc_net_id __read_mostly; |
Ying Xue | cc79dd1 | 2013-06-17 10:54:37 -0400 | [diff] [blame] | 52 | int sysctl_tipc_rmem[3] __read_mostly; /* min/default/max */ |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 53 | |
Ying Xue | c93d3ba | 2015-01-09 15:27:04 +0800 | [diff] [blame] | 54 | static int __net_init tipc_init_net(struct net *net) |
| 55 | { |
| 56 | struct tipc_net *tn = net_generic(net, tipc_net_id); |
Ying Xue | e05b31f | 2015-01-09 15:27:08 +0800 | [diff] [blame] | 57 | int err; |
Ying Xue | c93d3ba | 2015-01-09 15:27:04 +0800 | [diff] [blame] | 58 | |
| 59 | tn->net_id = 4711; |
Jon Maloy | d50ccc2 | 2018-03-22 20:42:50 +0100 | [diff] [blame] | 60 | tn->node_addr = 0; |
Jon Maloy | 25b0b9c | 2018-03-22 20:42:51 +0100 | [diff] [blame] | 61 | tn->trial_addr = 0; |
| 62 | tn->addr_trial_end = 0; |
Hoang Le | ff2ebbf | 2019-03-19 18:49:49 +0700 | [diff] [blame] | 63 | tn->capabilities = TIPC_NODE_CAPABILITIES; |
Jon Maloy | d50ccc2 | 2018-03-22 20:42:50 +0100 | [diff] [blame] | 64 | memset(tn->node_id, 0, sizeof(tn->node_id)); |
| 65 | memset(tn->node_id_string, 0, sizeof(tn->node_id_string)); |
Jon Paul Maloy | 35c55c9 | 2016-06-13 20:46:22 -0400 | [diff] [blame] | 66 | tn->mon_threshold = TIPC_DEF_MON_THRESHOLD; |
Ying Xue | bafa29e | 2015-01-09 15:27:12 +0800 | [diff] [blame] | 67 | get_random_bytes(&tn->random, sizeof(int)); |
Ying Xue | f2f9800 | 2015-01-09 15:27:05 +0800 | [diff] [blame] | 68 | INIT_LIST_HEAD(&tn->node_list); |
| 69 | spin_lock_init(&tn->node_list_lock); |
Ying Xue | c93d3ba | 2015-01-09 15:27:04 +0800 | [diff] [blame] | 70 | |
Ying Xue | e05b31f | 2015-01-09 15:27:08 +0800 | [diff] [blame] | 71 | err = tipc_sk_rht_init(net); |
Ying Xue | 4ac1c8d | 2015-01-09 15:27:09 +0800 | [diff] [blame] | 72 | if (err) |
| 73 | goto out_sk_rht; |
| 74 | |
| 75 | err = tipc_nametbl_init(net); |
| 76 | if (err) |
| 77 | goto out_nametbl; |
Ying Xue | a62fbcc | 2015-01-09 15:27:11 +0800 | [diff] [blame] | 78 | |
Erik Hugne | 541726a | 2016-04-07 10:40:43 -0400 | [diff] [blame] | 79 | INIT_LIST_HEAD(&tn->dist_queue); |
Jon Paul Maloy | 5fd9fd6 | 2015-10-22 08:51:35 -0400 | [diff] [blame] | 80 | |
| 81 | err = tipc_bcast_init(net); |
| 82 | if (err) |
| 83 | goto out_bclink; |
| 84 | |
John Rutherford | 6c9081a | 2019-08-07 12:52:29 +1000 | [diff] [blame] | 85 | err = tipc_attach_loopback(net); |
| 86 | if (err) |
| 87 | goto out_bclink; |
| 88 | |
Ying Xue | 4ac1c8d | 2015-01-09 15:27:09 +0800 | [diff] [blame] | 89 | return 0; |
| 90 | |
Jon Paul Maloy | 5fd9fd6 | 2015-10-22 08:51:35 -0400 | [diff] [blame] | 91 | out_bclink: |
Ying Xue | a62fbcc | 2015-01-09 15:27:11 +0800 | [diff] [blame] | 92 | tipc_nametbl_stop(net); |
Ying Xue | 4ac1c8d | 2015-01-09 15:27:09 +0800 | [diff] [blame] | 93 | out_nametbl: |
| 94 | tipc_sk_rht_destroy(net); |
| 95 | out_sk_rht: |
Ying Xue | e05b31f | 2015-01-09 15:27:08 +0800 | [diff] [blame] | 96 | return err; |
Ying Xue | c93d3ba | 2015-01-09 15:27:04 +0800 | [diff] [blame] | 97 | } |
| 98 | |
| 99 | static void __net_exit tipc_exit_net(struct net *net) |
| 100 | { |
John Rutherford | 6c9081a | 2019-08-07 12:52:29 +1000 | [diff] [blame] | 101 | tipc_detach_loopback(net); |
Ying Xue | f2f9800 | 2015-01-09 15:27:05 +0800 | [diff] [blame] | 102 | tipc_net_stop(net); |
Jon Paul Maloy | 5fd9fd6 | 2015-10-22 08:51:35 -0400 | [diff] [blame] | 103 | tipc_bcast_stop(net); |
Ying Xue | 4ac1c8d | 2015-01-09 15:27:09 +0800 | [diff] [blame] | 104 | tipc_nametbl_stop(net); |
Ying Xue | e05b31f | 2015-01-09 15:27:08 +0800 | [diff] [blame] | 105 | tipc_sk_rht_destroy(net); |
Ying Xue | c93d3ba | 2015-01-09 15:27:04 +0800 | [diff] [blame] | 106 | } |
| 107 | |
| 108 | static struct pernet_operations tipc_net_ops = { |
| 109 | .init = tipc_init_net, |
| 110 | .exit = tipc_exit_net, |
| 111 | .id = &tipc_net_id, |
| 112 | .size = sizeof(struct tipc_net), |
| 113 | }; |
| 114 | |
Junwei Hu | 526f5b8 | 2019-05-20 14:43:59 +0800 | [diff] [blame] | 115 | static struct pernet_operations tipc_topsrv_net_ops = { |
| 116 | .init = tipc_topsrv_init_net, |
| 117 | .exit = tipc_topsrv_exit_net, |
| 118 | }; |
| 119 | |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 120 | static int __init tipc_init(void) |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 121 | { |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 122 | int err; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 123 | |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 124 | pr_info("Activated (version " TIPC_MOD_VER ")\n"); |
| 125 | |
Jon Paul Maloy | 10724cc | 2016-05-02 11:58:47 -0400 | [diff] [blame] | 126 | sysctl_tipc_rmem[0] = RCVBUF_MIN; |
| 127 | sysctl_tipc_rmem[1] = RCVBUF_DEF; |
| 128 | sysctl_tipc_rmem[2] = RCVBUF_MAX; |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 129 | |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 130 | err = tipc_netlink_start(); |
| 131 | if (err) |
| 132 | goto out_netlink; |
| 133 | |
Richard Alpe | bfb3e5d | 2015-02-09 09:50:03 +0100 | [diff] [blame] | 134 | err = tipc_netlink_compat_start(); |
| 135 | if (err) |
| 136 | goto out_netlink_compat; |
| 137 | |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 138 | err = tipc_register_sysctl(); |
| 139 | if (err) |
| 140 | goto out_sysctl; |
| 141 | |
Xin Long | c492d4c | 2019-06-20 18:39:28 +0800 | [diff] [blame] | 142 | err = register_pernet_device(&tipc_net_ops); |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 143 | if (err) |
Ying Xue | a62fbcc | 2015-01-09 15:27:11 +0800 | [diff] [blame] | 144 | goto out_pernet; |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 145 | |
David S. Miller | 5593530 | 2019-05-17 12:15:05 -0700 | [diff] [blame] | 146 | err = tipc_socket_init(); |
| 147 | if (err) |
| 148 | goto out_socket; |
| 149 | |
Xin Long | c492d4c | 2019-06-20 18:39:28 +0800 | [diff] [blame] | 150 | err = register_pernet_device(&tipc_topsrv_net_ops); |
Junwei Hu | 526f5b8 | 2019-05-20 14:43:59 +0800 | [diff] [blame] | 151 | if (err) |
| 152 | goto out_pernet_topsrv; |
| 153 | |
Ying Xue | 970122f | 2014-02-20 11:32:50 +0800 | [diff] [blame] | 154 | err = tipc_bearer_setup(); |
| 155 | if (err) |
| 156 | goto out_bearer; |
| 157 | |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 158 | pr_info("Started in single node mode\n"); |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 159 | return 0; |
Ying Xue | 970122f | 2014-02-20 11:32:50 +0800 | [diff] [blame] | 160 | out_bearer: |
Xin Long | c492d4c | 2019-06-20 18:39:28 +0800 | [diff] [blame] | 161 | unregister_pernet_device(&tipc_topsrv_net_ops); |
Junwei Hu | 526f5b8 | 2019-05-20 14:43:59 +0800 | [diff] [blame] | 162 | out_pernet_topsrv: |
David S. Miller | 5593530 | 2019-05-17 12:15:05 -0700 | [diff] [blame] | 163 | tipc_socket_stop(); |
| 164 | out_socket: |
Xin Long | c492d4c | 2019-06-20 18:39:28 +0800 | [diff] [blame] | 165 | unregister_pernet_device(&tipc_net_ops); |
Ying Xue | a62fbcc | 2015-01-09 15:27:11 +0800 | [diff] [blame] | 166 | out_pernet: |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 167 | tipc_unregister_sysctl(); |
| 168 | out_sysctl: |
Richard Alpe | bfb3e5d | 2015-02-09 09:50:03 +0100 | [diff] [blame] | 169 | tipc_netlink_compat_stop(); |
| 170 | out_netlink_compat: |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 171 | tipc_netlink_stop(); |
| 172 | out_netlink: |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 173 | pr_err("Unable to start in single node mode\n"); |
Ying Xue | 9fe7ed4 | 2014-02-20 11:32:49 +0800 | [diff] [blame] | 174 | return err; |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 175 | } |
| 176 | |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 177 | static void __exit tipc_exit(void) |
| 178 | { |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 179 | tipc_bearer_cleanup(); |
Xin Long | c492d4c | 2019-06-20 18:39:28 +0800 | [diff] [blame] | 180 | unregister_pernet_device(&tipc_topsrv_net_ops); |
David S. Miller | 5593530 | 2019-05-17 12:15:05 -0700 | [diff] [blame] | 181 | tipc_socket_stop(); |
Xin Long | c492d4c | 2019-06-20 18:39:28 +0800 | [diff] [blame] | 182 | unregister_pernet_device(&tipc_net_ops); |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 183 | tipc_netlink_stop(); |
Richard Alpe | bfb3e5d | 2015-02-09 09:50:03 +0100 | [diff] [blame] | 184 | tipc_netlink_compat_stop(); |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 185 | tipc_unregister_sysctl(); |
Ying Xue | 6b8326e | 2015-01-09 15:26:59 +0800 | [diff] [blame] | 186 | |
Erik Hugne | 2cf8aa1 | 2012-06-29 00:16:37 -0400 | [diff] [blame] | 187 | pr_info("Deactivated\n"); |
Per Liden | b97bf3f | 2006-01-02 19:04:38 +0100 | [diff] [blame] | 188 | } |
| 189 | |
| 190 | module_init(tipc_init); |
| 191 | module_exit(tipc_exit); |
| 192 | |
| 193 | MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication"); |
| 194 | MODULE_LICENSE("Dual BSD/GPL"); |
Allan Stephens | a592ea6 | 2006-06-25 23:42:47 -0700 | [diff] [blame] | 195 | MODULE_VERSION(TIPC_MOD_VER); |