2 * net/tipc/core.c: TIPC module code
4 * Copyright (c) 2003-2006, 2013, Ericsson AB
5 * Copyright (c) 2005-2006, 2010-2013, Wind River Systems
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
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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.
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.
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
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34 * POSSIBILITY OF SUCH DAMAGE.
38 #include "name_table.h"
47 #include <linux/module.h>
49 /* configurable TIPC parameters */
50 unsigned int tipc_net_id __read_mostly
;
51 int sysctl_tipc_rmem
[3] __read_mostly
; /* min/default/max */
53 static int __net_init
tipc_init_net(struct net
*net
)
55 struct tipc_net
*tn
= net_generic(net
, tipc_net_id
);
61 tn
->addr_trial_end
= 0;
62 tn
->capabilities
= TIPC_NODE_CAPABILITIES
;
63 memset(tn
->node_id
, 0, sizeof(tn
->node_id
));
64 memset(tn
->node_id_string
, 0, sizeof(tn
->node_id_string
));
65 tn
->mon_threshold
= TIPC_DEF_MON_THRESHOLD
;
66 get_random_bytes(&tn
->random
, sizeof(int));
67 INIT_LIST_HEAD(&tn
->node_list
);
68 spin_lock_init(&tn
->node_list_lock
);
70 #ifdef CONFIG_TIPC_CRYPTO
71 err
= tipc_crypto_start(&tn
->crypto_tx
, net
, NULL
);
75 err
= tipc_sk_rht_init(net
);
79 err
= tipc_nametbl_init(net
);
83 INIT_LIST_HEAD(&tn
->dist_queue
);
85 err
= tipc_bcast_init(net
);
89 err
= tipc_attach_loopback(net
);
96 tipc_nametbl_stop(net
);
98 tipc_sk_rht_destroy(net
);
101 #ifdef CONFIG_TIPC_CRYPTO
102 tipc_crypto_stop(&tn
->crypto_tx
);
108 static void __net_exit
tipc_exit_net(struct net
*net
)
110 tipc_detach_loopback(net
);
112 tipc_bcast_stop(net
);
113 tipc_nametbl_stop(net
);
114 tipc_sk_rht_destroy(net
);
115 #ifdef CONFIG_TIPC_CRYPTO
116 tipc_crypto_stop(&tipc_net(net
)->crypto_tx
);
120 static void __net_exit
tipc_pernet_pre_exit(struct net
*net
)
122 tipc_node_pre_cleanup_net(net
);
125 static struct pernet_operations tipc_pernet_pre_exit_ops
= {
126 .pre_exit
= tipc_pernet_pre_exit
,
129 static struct pernet_operations tipc_net_ops
= {
130 .init
= tipc_init_net
,
131 .exit
= tipc_exit_net
,
133 .size
= sizeof(struct tipc_net
),
136 static struct pernet_operations tipc_topsrv_net_ops
= {
137 .init
= tipc_topsrv_init_net
,
138 .exit
= tipc_topsrv_exit_net
,
141 static int __init
tipc_init(void)
145 pr_info("Activated (version " TIPC_MOD_VER
")\n");
147 sysctl_tipc_rmem
[0] = RCVBUF_MIN
;
148 sysctl_tipc_rmem
[1] = RCVBUF_DEF
;
149 sysctl_tipc_rmem
[2] = RCVBUF_MAX
;
151 err
= tipc_netlink_start();
155 err
= tipc_netlink_compat_start();
157 goto out_netlink_compat
;
159 err
= tipc_register_sysctl();
163 err
= register_pernet_device(&tipc_net_ops
);
167 err
= tipc_socket_init();
171 err
= register_pernet_device(&tipc_topsrv_net_ops
);
173 goto out_pernet_topsrv
;
175 err
= register_pernet_subsys(&tipc_pernet_pre_exit_ops
);
177 goto out_register_pernet_subsys
;
179 err
= tipc_bearer_setup();
183 pr_info("Started in single node mode\n");
186 unregister_pernet_subsys(&tipc_pernet_pre_exit_ops
);
187 out_register_pernet_subsys
:
188 unregister_pernet_device(&tipc_topsrv_net_ops
);
192 unregister_pernet_device(&tipc_net_ops
);
194 tipc_unregister_sysctl();
196 tipc_netlink_compat_stop();
200 pr_err("Unable to start in single node mode\n");
204 static void __exit
tipc_exit(void)
206 tipc_bearer_cleanup();
207 unregister_pernet_subsys(&tipc_pernet_pre_exit_ops
);
208 unregister_pernet_device(&tipc_topsrv_net_ops
);
210 unregister_pernet_device(&tipc_net_ops
);
212 tipc_netlink_compat_stop();
213 tipc_unregister_sysctl();
215 pr_info("Deactivated\n");
218 module_init(tipc_init
);
219 module_exit(tipc_exit
);
221 MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
222 MODULE_LICENSE("Dual BSD/GPL");
223 MODULE_VERSION(TIPC_MOD_VER
);