2 * net/tipc/core.c: TIPC module code
4 * Copyright (c) 2003-2005, Ericsson Research Canada
5 * Copyright (c) 2005, Wind River Systems
6 * Copyright (c) 2005-2006, Ericsson AB
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. Neither the names of the copyright holders nor the names of its
18 * contributors may be used to endorse or promote products derived from
19 * this software without specific prior written permission.
21 * Alternatively, this software may be distributed under the terms of the
22 * GNU General Public License ("GPL") version 2 as published by the Free
23 * Software Foundation.
25 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
26 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
27 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
28 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
29 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
38 #include <linux/init.h>
39 #include <linux/module.h>
40 #include <linux/kernel.h>
41 #include <linux/version.h>
42 #include <linux/random.h>
49 #include "name_table.h"
53 int eth_media_start(void);
54 void eth_media_stop(void);
55 int handler_start(void);
56 void handler_stop(void);
57 int socket_init(void);
58 void socket_stop(void);
59 int netlink_start(void);
60 void netlink_stop(void);
62 #define MOD_NAME "tipc_start: "
64 #ifndef CONFIG_TIPC_ZONES
65 #define CONFIG_TIPC_ZONES 3
68 #ifndef CONFIG_TIPC_CLUSTERS
69 #define CONFIG_TIPC_CLUSTERS 1
72 #ifndef CONFIG_TIPC_NODES
73 #define CONFIG_TIPC_NODES 255
76 #ifndef CONFIG_TIPC_SLAVE_NODES
77 #define CONFIG_TIPC_SLAVE_NODES 0
80 #ifndef CONFIG_TIPC_PORTS
81 #define CONFIG_TIPC_PORTS 8191
84 #ifndef CONFIG_TIPC_LOG
85 #define CONFIG_TIPC_LOG 0
88 /* global variables used by multiple sub-systems within TIPC */
90 int tipc_mode = TIPC_NOT_RUNNING;
92 atomic_t tipc_user_count = ATOMIC_INIT(0);
94 const char tipc_alphabet[] =
95 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
97 /* configurable TIPC parameters */
101 int tipc_max_clusters;
105 int tipc_max_subscriptions;
106 int tipc_max_publications;
108 int tipc_remote_management;
111 int tipc_get_mode(void)
117 * stop_net - shut down TIPC networking sub-systems
127 * start_net - start TIPC networking sub-systems
134 if ((res = tipc_start_net()) ||
135 (res = eth_media_start())) {
142 * stop_core - switch TIPC from SINGLE NODE to NOT RUNNING mode
147 if (tipc_mode != TIPC_NODE_MODE)
150 tipc_mode = TIPC_NOT_RUNNING;
163 * start_core - switch TIPC from NOT RUNNING to SINGLE NODE mode
170 if (tipc_mode != TIPC_NOT_RUNNING)
173 get_random_bytes(&tipc_random, sizeof(tipc_random));
174 tipc_mode = TIPC_NODE_MODE;
176 if ((res = handler_start()) ||
177 (res = ref_table_init(tipc_max_ports + tipc_max_subscriptions,
179 (res = reg_start()) ||
180 (res = nametbl_init()) ||
181 (res = k_signal((Handler)subscr_start, 0)) ||
182 (res = k_signal((Handler)cfg_init, 0)) ||
183 (res = netlink_start()) ||
184 (res = socket_init())) {
191 static int __init tipc_init(void)
195 log_reinit(CONFIG_TIPC_LOG);
196 info("Activated (compiled " __DATE__ " " __TIME__ ")\n");
199 tipc_remote_management = 1;
200 tipc_max_publications = 10000;
201 tipc_max_subscriptions = 2000;
202 tipc_max_ports = delimit(CONFIG_TIPC_PORTS, 127, 65536);
203 tipc_max_zones = delimit(CONFIG_TIPC_ZONES, 1, 511);
204 tipc_max_clusters = delimit(CONFIG_TIPC_CLUSTERS, 1, 1);
205 tipc_max_nodes = delimit(CONFIG_TIPC_NODES, 8, 2047);
206 tipc_max_slaves = delimit(CONFIG_TIPC_SLAVE_NODES, 0, 2047);
209 if ((res = start_core()))
210 err("Unable to start in single node mode\n");
212 info("Started in single node mode\n");
216 static void __exit tipc_exit(void)
220 info("Deactivated\n");
224 module_init(tipc_init);
225 module_exit(tipc_exit);
227 MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
228 MODULE_LICENSE("Dual BSD/GPL");
230 /* Native TIPC API for kernel-space applications (see tipc.h) */
232 EXPORT_SYMBOL(tipc_attach);
233 EXPORT_SYMBOL(tipc_detach);
234 EXPORT_SYMBOL(tipc_get_addr);
235 EXPORT_SYMBOL(tipc_get_mode);
236 EXPORT_SYMBOL(tipc_createport);
237 EXPORT_SYMBOL(tipc_deleteport);
238 EXPORT_SYMBOL(tipc_ownidentity);
239 EXPORT_SYMBOL(tipc_portimportance);
240 EXPORT_SYMBOL(tipc_set_portimportance);
241 EXPORT_SYMBOL(tipc_portunreliable);
242 EXPORT_SYMBOL(tipc_set_portunreliable);
243 EXPORT_SYMBOL(tipc_portunreturnable);
244 EXPORT_SYMBOL(tipc_set_portunreturnable);
245 EXPORT_SYMBOL(tipc_publish);
246 EXPORT_SYMBOL(tipc_withdraw);
247 EXPORT_SYMBOL(tipc_connect2port);
248 EXPORT_SYMBOL(tipc_disconnect);
249 EXPORT_SYMBOL(tipc_shutdown);
250 EXPORT_SYMBOL(tipc_isconnected);
251 EXPORT_SYMBOL(tipc_peer);
252 EXPORT_SYMBOL(tipc_ref_valid);
253 EXPORT_SYMBOL(tipc_send);
254 EXPORT_SYMBOL(tipc_send_buf);
255 EXPORT_SYMBOL(tipc_send2name);
256 EXPORT_SYMBOL(tipc_forward2name);
257 EXPORT_SYMBOL(tipc_send_buf2name);
258 EXPORT_SYMBOL(tipc_forward_buf2name);
259 EXPORT_SYMBOL(tipc_send2port);
260 EXPORT_SYMBOL(tipc_forward2port);
261 EXPORT_SYMBOL(tipc_send_buf2port);
262 EXPORT_SYMBOL(tipc_forward_buf2port);
263 EXPORT_SYMBOL(tipc_multicast);
264 /* EXPORT_SYMBOL(tipc_multicast_buf); not available yet */
265 EXPORT_SYMBOL(tipc_ispublished);
266 EXPORT_SYMBOL(tipc_available_nodes);
268 /* TIPC API for external bearers (see tipc_bearer.h) */
270 EXPORT_SYMBOL(tipc_block_bearer);
271 EXPORT_SYMBOL(tipc_continue);
272 EXPORT_SYMBOL(tipc_disable_bearer);
273 EXPORT_SYMBOL(tipc_enable_bearer);
274 EXPORT_SYMBOL(tipc_recv_msg);
275 EXPORT_SYMBOL(tipc_register_media);
277 /* TIPC API for external APIs (see tipc_port.h) */
279 EXPORT_SYMBOL(tipc_createport_raw);
280 EXPORT_SYMBOL(tipc_set_msg_option);
281 EXPORT_SYMBOL(tipc_reject_msg);
282 EXPORT_SYMBOL(tipc_send_buf_fast);
283 EXPORT_SYMBOL(tipc_acknowledge);
284 EXPORT_SYMBOL(tipc_get_port);
285 EXPORT_SYMBOL(tipc_get_handle);