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1/*
2 * net/tipc/core.c: TIPC module code
3 *
4 * Copyright (c) 2003-2006, 2013, Ericsson AB
5 * Copyright (c) 2005-2006, 2010-2013, 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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38
39#include "core.h"
40#include "name_table.h"
41#include "subscr.h"
42#include "bearer.h"
43#include "net.h"
44#include "socket.h"
45#include "bcast.h"
46
47#include <linux/module.h>
48
49/* configurable TIPC parameters */
50int tipc_net_id __read_mostly;
51int sysctl_tipc_rmem[3] __read_mostly; /* min/default/max */
52
53static int __net_init tipc_init_net(struct net *net)
54{
55 struct tipc_net *tn = net_generic(net, tipc_net_id);
56 int err;
57
58 tn->net_id = 4711;
59 tn->own_addr = 0;
60 get_random_bytes(&tn->random, sizeof(int));
61 INIT_LIST_HEAD(&tn->node_list);
62 spin_lock_init(&tn->node_list_lock);
63
64 err = tipc_sk_rht_init(net);
65 if (err)
66 goto out_sk_rht;
67
68 err = tipc_nametbl_init(net);
69 if (err)
70 goto out_nametbl;
71
72 INIT_LIST_HEAD(&tn->dist_queue);
73 err = tipc_topsrv_start(net);
74 if (err)
75 goto out_subscr;
76
77 err = tipc_bcast_init(net);
78 if (err)
79 goto out_bclink;
80
81 return 0;
82
83out_bclink:
84 tipc_bcast_stop(net);
85out_subscr:
86 tipc_nametbl_stop(net);
87out_nametbl:
88 tipc_sk_rht_destroy(net);
89out_sk_rht:
90 return err;
91}
92
93static void __net_exit tipc_exit_net(struct net *net)
94{
95 tipc_topsrv_stop(net);
96 tipc_net_stop(net);
97 tipc_bcast_stop(net);
98 tipc_nametbl_stop(net);
99 tipc_sk_rht_destroy(net);
100}
101
102static struct pernet_operations tipc_net_ops = {
103 .init = tipc_init_net,
104 .exit = tipc_exit_net,
105 .id = &tipc_net_id,
106 .size = sizeof(struct tipc_net),
107};
108
109static int __init tipc_init(void)
110{
111 int err;
112
113 pr_info("Activated (version " TIPC_MOD_VER ")\n");
114
115 sysctl_tipc_rmem[0] = TIPC_CONN_OVERLOAD_LIMIT >> 4 <<
116 TIPC_LOW_IMPORTANCE;
117 sysctl_tipc_rmem[1] = TIPC_CONN_OVERLOAD_LIMIT >> 4 <<
118 TIPC_CRITICAL_IMPORTANCE;
119 sysctl_tipc_rmem[2] = TIPC_CONN_OVERLOAD_LIMIT;
120
121 err = tipc_netlink_start();
122 if (err)
123 goto out_netlink;
124
125 err = tipc_netlink_compat_start();
126 if (err)
127 goto out_netlink_compat;
128
129 err = tipc_socket_init();
130 if (err)
131 goto out_socket;
132
133 err = tipc_register_sysctl();
134 if (err)
135 goto out_sysctl;
136
137 err = register_pernet_subsys(&tipc_net_ops);
138 if (err)
139 goto out_pernet;
140
141 err = tipc_bearer_setup();
142 if (err)
143 goto out_bearer;
144
145 pr_info("Started in single node mode\n");
146 return 0;
147out_bearer:
148 unregister_pernet_subsys(&tipc_net_ops);
149out_pernet:
150 tipc_unregister_sysctl();
151out_sysctl:
152 tipc_socket_stop();
153out_socket:
154 tipc_netlink_compat_stop();
155out_netlink_compat:
156 tipc_netlink_stop();
157out_netlink:
158 pr_err("Unable to start in single node mode\n");
159 return err;
160}
161
162static void __exit tipc_exit(void)
163{
164 tipc_bearer_cleanup();
165 unregister_pernet_subsys(&tipc_net_ops);
166 tipc_netlink_stop();
167 tipc_netlink_compat_stop();
168 tipc_socket_stop();
169 tipc_unregister_sysctl();
170
171 pr_info("Deactivated\n");
172}
173
174module_init(tipc_init);
175module_exit(tipc_exit);
176
177MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
178MODULE_LICENSE("Dual BSD/GPL");
179MODULE_VERSION(TIPC_MOD_VER);
1/*
2 * net/tipc/core.c: TIPC module code
3 *
4 * Copyright (c) 2003-2006, 2013, Ericsson AB
5 * Copyright (c) 2005-2006, 2010-2013, 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#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
38
39#include "core.h"
40#include "name_table.h"
41#include "subscr.h"
42#include "bearer.h"
43#include "net.h"
44#include "socket.h"
45#include "bcast.h"
46
47#include <linux/module.h>
48
49/* configurable TIPC parameters */
50unsigned int tipc_net_id __read_mostly;
51int sysctl_tipc_rmem[3] __read_mostly; /* min/default/max */
52
53static int __net_init tipc_init_net(struct net *net)
54{
55 struct tipc_net *tn = net_generic(net, tipc_net_id);
56 int err;
57
58 tn->net_id = 4711;
59 tn->own_addr = 0;
60 tn->mon_threshold = TIPC_DEF_MON_THRESHOLD;
61 get_random_bytes(&tn->random, sizeof(int));
62 INIT_LIST_HEAD(&tn->node_list);
63 spin_lock_init(&tn->node_list_lock);
64
65 err = tipc_sk_rht_init(net);
66 if (err)
67 goto out_sk_rht;
68
69 err = tipc_nametbl_init(net);
70 if (err)
71 goto out_nametbl;
72
73 INIT_LIST_HEAD(&tn->dist_queue);
74 err = tipc_topsrv_start(net);
75 if (err)
76 goto out_subscr;
77
78 err = tipc_bcast_init(net);
79 if (err)
80 goto out_bclink;
81
82 return 0;
83
84out_bclink:
85 tipc_bcast_stop(net);
86out_subscr:
87 tipc_nametbl_stop(net);
88out_nametbl:
89 tipc_sk_rht_destroy(net);
90out_sk_rht:
91 return err;
92}
93
94static void __net_exit tipc_exit_net(struct net *net)
95{
96 tipc_topsrv_stop(net);
97 tipc_net_stop(net);
98 tipc_bcast_stop(net);
99 tipc_nametbl_stop(net);
100 tipc_sk_rht_destroy(net);
101}
102
103static struct pernet_operations tipc_net_ops = {
104 .init = tipc_init_net,
105 .exit = tipc_exit_net,
106 .id = &tipc_net_id,
107 .size = sizeof(struct tipc_net),
108};
109
110static int __init tipc_init(void)
111{
112 int err;
113
114 pr_info("Activated (version " TIPC_MOD_VER ")\n");
115
116 sysctl_tipc_rmem[0] = RCVBUF_MIN;
117 sysctl_tipc_rmem[1] = RCVBUF_DEF;
118 sysctl_tipc_rmem[2] = RCVBUF_MAX;
119
120 err = tipc_netlink_start();
121 if (err)
122 goto out_netlink;
123
124 err = tipc_netlink_compat_start();
125 if (err)
126 goto out_netlink_compat;
127
128 err = tipc_socket_init();
129 if (err)
130 goto out_socket;
131
132 err = tipc_register_sysctl();
133 if (err)
134 goto out_sysctl;
135
136 err = register_pernet_subsys(&tipc_net_ops);
137 if (err)
138 goto out_pernet;
139
140 err = tipc_bearer_setup();
141 if (err)
142 goto out_bearer;
143
144 pr_info("Started in single node mode\n");
145 return 0;
146out_bearer:
147 unregister_pernet_subsys(&tipc_net_ops);
148out_pernet:
149 tipc_unregister_sysctl();
150out_sysctl:
151 tipc_socket_stop();
152out_socket:
153 tipc_netlink_compat_stop();
154out_netlink_compat:
155 tipc_netlink_stop();
156out_netlink:
157 pr_err("Unable to start in single node mode\n");
158 return err;
159}
160
161static void __exit tipc_exit(void)
162{
163 tipc_bearer_cleanup();
164 unregister_pernet_subsys(&tipc_net_ops);
165 tipc_netlink_stop();
166 tipc_netlink_compat_stop();
167 tipc_socket_stop();
168 tipc_unregister_sysctl();
169
170 pr_info("Deactivated\n");
171}
172
173module_init(tipc_init);
174module_exit(tipc_exit);
175
176MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
177MODULE_LICENSE("Dual BSD/GPL");
178MODULE_VERSION(TIPC_MOD_VER);