Commit | Line | Data |
---|---|---|
b97bf3fd PL |
1 | /* |
2 | * net/tipc/core.c: TIPC module code | |
3 | * | |
c61dd61d | 4 | * Copyright (c) 2003-2006, 2013, Ericsson AB |
13a2e898 | 5 | * Copyright (c) 2005-2006, 2010-2013, Wind River Systems |
b97bf3fd PL |
6 | * All rights reserved. |
7 | * | |
9ea1fd3c | 8 | * Redistribution and use in source and binary forms, with or without |
b97bf3fd PL |
9 | * modification, are permitted provided that the following conditions are met: |
10 | * | |
9ea1fd3c PL |
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. | |
b97bf3fd | 19 | * |
9ea1fd3c PL |
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 | |
b97bf3fd PL |
34 | * POSSIBILITY OF SUCH DAMAGE. |
35 | */ | |
36 | ||
b97bf3fd | 37 | #include "core.h" |
b97bf3fd PL |
38 | #include "name_table.h" |
39 | #include "subscr.h" | |
22ae7cff RA |
40 | #include "bearer.h" |
41 | #include "net.h" | |
2e84c60b | 42 | #include "socket.h" |
5fd9fd63 | 43 | #include "bcast.h" |
ff2ebbfb | 44 | #include "node.h" |
fc1b6d6d | 45 | #include "crypto.h" |
b97bf3fd | 46 | |
2cf8aa19 | 47 | #include <linux/module.h> |
b97bf3fd | 48 | |
b97bf3fd | 49 | /* configurable TIPC parameters */ |
c7d03a00 | 50 | unsigned int tipc_net_id __read_mostly; |
cc79dd1b | 51 | int sysctl_tipc_rmem[3] __read_mostly; /* min/default/max */ |
b97bf3fd | 52 | |
c93d3baa YX |
53 | static int __net_init tipc_init_net(struct net *net) |
54 | { | |
55 | struct tipc_net *tn = net_generic(net, tipc_net_id); | |
e05b31f4 | 56 | int err; |
c93d3baa YX |
57 | |
58 | tn->net_id = 4711; | |
d50ccc2d | 59 | tn->node_addr = 0; |
25b0b9c4 JM |
60 | tn->trial_addr = 0; |
61 | tn->addr_trial_end = 0; | |
ff2ebbfb | 62 | tn->capabilities = TIPC_NODE_CAPABILITIES; |
d966ddcc | 63 | INIT_WORK(&tn->final_work.work, tipc_net_finalize_work); |
d50ccc2d JM |
64 | memset(tn->node_id, 0, sizeof(tn->node_id)); |
65 | memset(tn->node_id_string, 0, sizeof(tn->node_id_string)); | |
35c55c98 | 66 | tn->mon_threshold = TIPC_DEF_MON_THRESHOLD; |
bafa29e3 | 67 | get_random_bytes(&tn->random, sizeof(int)); |
f2f9800d YX |
68 | INIT_LIST_HEAD(&tn->node_list); |
69 | spin_lock_init(&tn->node_list_lock); | |
c93d3baa | 70 | |
fc1b6d6d TL |
71 | #ifdef CONFIG_TIPC_CRYPTO |
72 | err = tipc_crypto_start(&tn->crypto_tx, net, NULL); | |
73 | if (err) | |
74 | goto out_crypto; | |
75 | #endif | |
e05b31f4 | 76 | err = tipc_sk_rht_init(net); |
4ac1c8d0 YX |
77 | if (err) |
78 | goto out_sk_rht; | |
79 | ||
80 | err = tipc_nametbl_init(net); | |
81 | if (err) | |
82 | goto out_nametbl; | |
a62fbcce | 83 | |
5fd9fd63 JPM |
84 | err = tipc_bcast_init(net); |
85 | if (err) | |
86 | goto out_bclink; | |
87 | ||
6c9081a3 JR |
88 | err = tipc_attach_loopback(net); |
89 | if (err) | |
90 | goto out_bclink; | |
91 | ||
4ac1c8d0 YX |
92 | return 0; |
93 | ||
5fd9fd63 | 94 | out_bclink: |
a62fbcce | 95 | tipc_nametbl_stop(net); |
4ac1c8d0 YX |
96 | out_nametbl: |
97 | tipc_sk_rht_destroy(net); | |
98 | out_sk_rht: | |
fc1b6d6d TL |
99 | |
100 | #ifdef CONFIG_TIPC_CRYPTO | |
101 | tipc_crypto_stop(&tn->crypto_tx); | |
102 | out_crypto: | |
103 | #endif | |
e05b31f4 | 104 | return err; |
c93d3baa YX |
105 | } |
106 | ||
107 | static void __net_exit tipc_exit_net(struct net *net) | |
108 | { | |
d966ddcc HHL |
109 | struct tipc_net *tn = tipc_net(net); |
110 | ||
6c9081a3 | 111 | tipc_detach_loopback(net); |
d966ddcc HHL |
112 | /* Make sure the tipc_net_finalize_work() finished */ |
113 | cancel_work_sync(&tn->final_work.work); | |
f2f9800d | 114 | tipc_net_stop(net); |
fdeba99b | 115 | |
5fd9fd63 | 116 | tipc_bcast_stop(net); |
4ac1c8d0 | 117 | tipc_nametbl_stop(net); |
e05b31f4 | 118 | tipc_sk_rht_destroy(net); |
fc1b6d6d TL |
119 | #ifdef CONFIG_TIPC_CRYPTO |
120 | tipc_crypto_stop(&tipc_net(net)->crypto_tx); | |
121 | #endif | |
c93d3baa YX |
122 | } |
123 | ||
f73b1281 HL |
124 | static void __net_exit tipc_pernet_pre_exit(struct net *net) |
125 | { | |
126 | tipc_node_pre_cleanup_net(net); | |
127 | } | |
128 | ||
129 | static struct pernet_operations tipc_pernet_pre_exit_ops = { | |
130 | .pre_exit = tipc_pernet_pre_exit, | |
131 | }; | |
132 | ||
c93d3baa YX |
133 | static struct pernet_operations tipc_net_ops = { |
134 | .init = tipc_init_net, | |
135 | .exit = tipc_exit_net, | |
136 | .id = &tipc_net_id, | |
137 | .size = sizeof(struct tipc_net), | |
138 | }; | |
139 | ||
526f5b85 JH |
140 | static struct pernet_operations tipc_topsrv_net_ops = { |
141 | .init = tipc_topsrv_init_net, | |
142 | .exit = tipc_topsrv_exit_net, | |
143 | }; | |
144 | ||
6b8326ed | 145 | static int __init tipc_init(void) |
b97bf3fd | 146 | { |
9fe7ed47 | 147 | int err; |
b97bf3fd | 148 | |
6b8326ed YX |
149 | pr_info("Activated (version " TIPC_MOD_VER ")\n"); |
150 | ||
10724cc7 JPM |
151 | sysctl_tipc_rmem[0] = RCVBUF_MIN; |
152 | sysctl_tipc_rmem[1] = RCVBUF_DEF; | |
153 | sysctl_tipc_rmem[2] = RCVBUF_MAX; | |
6b8326ed | 154 | |
9fe7ed47 YX |
155 | err = tipc_register_sysctl(); |
156 | if (err) | |
157 | goto out_sysctl; | |
158 | ||
c492d4c7 | 159 | err = register_pernet_device(&tipc_net_ops); |
9fe7ed47 | 160 | if (err) |
a62fbcce | 161 | goto out_pernet; |
9fe7ed47 | 162 | |
5593530e DM |
163 | err = tipc_socket_init(); |
164 | if (err) | |
165 | goto out_socket; | |
166 | ||
c492d4c7 | 167 | err = register_pernet_device(&tipc_topsrv_net_ops); |
526f5b85 JH |
168 | if (err) |
169 | goto out_pernet_topsrv; | |
170 | ||
f73b1281 HL |
171 | err = register_pernet_subsys(&tipc_pernet_pre_exit_ops); |
172 | if (err) | |
173 | goto out_register_pernet_subsys; | |
174 | ||
970122fd YX |
175 | err = tipc_bearer_setup(); |
176 | if (err) | |
177 | goto out_bearer; | |
178 | ||
9cf1cd8e TY |
179 | err = tipc_netlink_start(); |
180 | if (err) | |
181 | goto out_netlink; | |
182 | ||
183 | err = tipc_netlink_compat_start(); | |
184 | if (err) | |
185 | goto out_netlink_compat; | |
186 | ||
6b8326ed | 187 | pr_info("Started in single node mode\n"); |
9fe7ed47 | 188 | return 0; |
9cf1cd8e TY |
189 | |
190 | out_netlink_compat: | |
191 | tipc_netlink_stop(); | |
192 | out_netlink: | |
193 | tipc_bearer_cleanup(); | |
970122fd | 194 | out_bearer: |
f73b1281 HL |
195 | unregister_pernet_subsys(&tipc_pernet_pre_exit_ops); |
196 | out_register_pernet_subsys: | |
c492d4c7 | 197 | unregister_pernet_device(&tipc_topsrv_net_ops); |
526f5b85 | 198 | out_pernet_topsrv: |
5593530e DM |
199 | tipc_socket_stop(); |
200 | out_socket: | |
c492d4c7 | 201 | unregister_pernet_device(&tipc_net_ops); |
a62fbcce | 202 | out_pernet: |
9fe7ed47 YX |
203 | tipc_unregister_sysctl(); |
204 | out_sysctl: | |
6b8326ed | 205 | pr_err("Unable to start in single node mode\n"); |
9fe7ed47 | 206 | return err; |
b97bf3fd PL |
207 | } |
208 | ||
b97bf3fd PL |
209 | static void __exit tipc_exit(void) |
210 | { | |
9cf1cd8e TY |
211 | tipc_netlink_compat_stop(); |
212 | tipc_netlink_stop(); | |
6b8326ed | 213 | tipc_bearer_cleanup(); |
f73b1281 | 214 | unregister_pernet_subsys(&tipc_pernet_pre_exit_ops); |
c492d4c7 | 215 | unregister_pernet_device(&tipc_topsrv_net_ops); |
5593530e | 216 | tipc_socket_stop(); |
c492d4c7 | 217 | unregister_pernet_device(&tipc_net_ops); |
6b8326ed | 218 | tipc_unregister_sysctl(); |
6b8326ed | 219 | |
2cf8aa19 | 220 | pr_info("Deactivated\n"); |
b97bf3fd PL |
221 | } |
222 | ||
223 | module_init(tipc_init); | |
224 | module_exit(tipc_exit); | |
225 | ||
226 | MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication"); | |
227 | MODULE_LICENSE("Dual BSD/GPL"); | |
a592ea63 | 228 | MODULE_VERSION(TIPC_MOD_VER); |