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 * Redistributions of source code must retain the above copyright notice, this
13 * list of conditions and the following disclaimer.
14 * Redistributions in binary form must reproduce the above copyright notice,
15 * this list of conditions and the following disclaimer in the documentation
16 * and/or other materials provided with the distribution.
17 * Neither the names of the copyright holders nor the names of its
18 * contributors may be used to endorse or promote products derived from this
19 * software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
25 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
31 * POSSIBILITY OF SUCH DAMAGE.
34 #include <linux/init.h>
35 #include <linux/module.h>
36 #include <linux/kernel.h>
37 #include <linux/version.h>
38 #include <linux/random.h>
45 #include "name_table.h"
49 int eth_media_start(void);
50 void eth_media_stop(void);
51 int handler_start(void);
52 void handler_stop(void);
53 int socket_init(void);
54 void socket_stop(void);
55 int netlink_start(void);
56 void netlink_stop(void);
58 #define MOD_NAME "tipc_start: "
60 #ifndef CONFIG_TIPC_ZONES
61 #define CONFIG_TIPC_ZONES 3
64 #ifndef CONFIG_TIPC_CLUSTERS
65 #define CONFIG_TIPC_CLUSTERS 1
68 #ifndef CONFIG_TIPC_NODES
69 #define CONFIG_TIPC_NODES 255
72 #ifndef CONFIG_TIPC_SLAVE_NODES
73 #define CONFIG_TIPC_SLAVE_NODES 0
76 #ifndef CONFIG_TIPC_PORTS
77 #define CONFIG_TIPC_PORTS 8191
80 #ifndef CONFIG_TIPC_LOG
81 #define CONFIG_TIPC_LOG 0
84 /* global variables used by multiple sub-systems within TIPC */
86 int tipc_mode = TIPC_NOT_RUNNING;
88 atomic_t tipc_user_count = ATOMIC_INIT(0);
90 const char tipc_alphabet[] =
91 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
93 /* configurable TIPC parameters */
97 int tipc_max_clusters;
101 int tipc_max_subscriptions;
102 int tipc_max_publications;
104 int tipc_remote_management;
107 int tipc_get_mode(void)
113 * stop_net - shut down TIPC networking sub-systems
123 * start_net - start TIPC networking sub-systems
130 if ((res = tipc_start_net()) ||
131 (res = eth_media_start())) {
138 * stop_core - switch TIPC from SINGLE NODE to NOT RUNNING mode
143 if (tipc_mode != TIPC_NODE_MODE)
146 tipc_mode = TIPC_NOT_RUNNING;
159 * start_core - switch TIPC from NOT RUNNING to SINGLE NODE mode
166 if (tipc_mode != TIPC_NOT_RUNNING)
169 get_random_bytes(&tipc_random, sizeof(tipc_random));
170 tipc_mode = TIPC_NODE_MODE;
172 if ((res = handler_start()) ||
173 (res = ref_table_init(tipc_max_ports + tipc_max_subscriptions,
175 (res = reg_start()) ||
176 (res = nametbl_init()) ||
177 (res = k_signal((Handler)subscr_start, 0)) ||
178 (res = k_signal((Handler)cfg_init, 0)) ||
179 (res = netlink_start()) ||
180 (res = socket_init())) {
187 static int __init tipc_init(void)
191 log_reinit(CONFIG_TIPC_LOG);
192 info("Activated (compiled " __DATE__ " " __TIME__ ")\n");
195 tipc_remote_management = 1;
196 tipc_max_publications = 10000;
197 tipc_max_subscriptions = 2000;
198 tipc_max_ports = delimit(CONFIG_TIPC_PORTS, 127, 65536);
199 tipc_max_zones = delimit(CONFIG_TIPC_ZONES, 1, 511);
200 tipc_max_clusters = delimit(CONFIG_TIPC_CLUSTERS, 1, 1);
201 tipc_max_nodes = delimit(CONFIG_TIPC_NODES, 8, 2047);
202 tipc_max_slaves = delimit(CONFIG_TIPC_SLAVE_NODES, 0, 2047);
205 if ((res = start_core()))
206 err("Unable to start in single node mode\n");
208 info("Started in single node mode\n");
212 static void __exit tipc_exit(void)
216 info("Deactivated\n");
220 module_init(tipc_init);
221 module_exit(tipc_exit);
223 MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
224 MODULE_LICENSE("Dual BSD/GPL");
226 /* Native TIPC API for kernel-space applications (see tipc.h) */
228 EXPORT_SYMBOL(tipc_attach);
229 EXPORT_SYMBOL(tipc_detach);
230 EXPORT_SYMBOL(tipc_get_addr);
231 EXPORT_SYMBOL(tipc_get_mode);
232 EXPORT_SYMBOL(tipc_createport);
233 EXPORT_SYMBOL(tipc_deleteport);
234 EXPORT_SYMBOL(tipc_ownidentity);
235 EXPORT_SYMBOL(tipc_portimportance);
236 EXPORT_SYMBOL(tipc_set_portimportance);
237 EXPORT_SYMBOL(tipc_portunreliable);
238 EXPORT_SYMBOL(tipc_set_portunreliable);
239 EXPORT_SYMBOL(tipc_portunreturnable);
240 EXPORT_SYMBOL(tipc_set_portunreturnable);
241 EXPORT_SYMBOL(tipc_publish);
242 EXPORT_SYMBOL(tipc_withdraw);
243 EXPORT_SYMBOL(tipc_connect2port);
244 EXPORT_SYMBOL(tipc_disconnect);
245 EXPORT_SYMBOL(tipc_shutdown);
246 EXPORT_SYMBOL(tipc_isconnected);
247 EXPORT_SYMBOL(tipc_peer);
248 EXPORT_SYMBOL(tipc_ref_valid);
249 EXPORT_SYMBOL(tipc_send);
250 EXPORT_SYMBOL(tipc_send_buf);
251 EXPORT_SYMBOL(tipc_send2name);
252 EXPORT_SYMBOL(tipc_forward2name);
253 EXPORT_SYMBOL(tipc_send_buf2name);
254 EXPORT_SYMBOL(tipc_forward_buf2name);
255 EXPORT_SYMBOL(tipc_send2port);
256 EXPORT_SYMBOL(tipc_forward2port);
257 EXPORT_SYMBOL(tipc_send_buf2port);
258 EXPORT_SYMBOL(tipc_forward_buf2port);
259 EXPORT_SYMBOL(tipc_multicast);
260 /* EXPORT_SYMBOL(tipc_multicast_buf); not available yet */
261 EXPORT_SYMBOL(tipc_ispublished);
262 EXPORT_SYMBOL(tipc_available_nodes);
264 /* TIPC API for external bearers (see tipc_bearer.h) */
266 EXPORT_SYMBOL(tipc_block_bearer);
267 EXPORT_SYMBOL(tipc_continue);
268 EXPORT_SYMBOL(tipc_disable_bearer);
269 EXPORT_SYMBOL(tipc_enable_bearer);
270 EXPORT_SYMBOL(tipc_recv_msg);
271 EXPORT_SYMBOL(tipc_register_media);
273 /* TIPC API for external APIs (see tipc_port.h) */
275 EXPORT_SYMBOL(tipc_createport_raw);
276 EXPORT_SYMBOL(tipc_set_msg_option);
277 EXPORT_SYMBOL(tipc_reject_msg);
278 EXPORT_SYMBOL(tipc_send_buf_fast);
279 EXPORT_SYMBOL(tipc_acknowledge);
280 EXPORT_SYMBOL(tipc_get_port);
281 EXPORT_SYMBOL(tipc_get_handle);