2 * net/tipc/core.c: TIPC module code
4 * Copyright (c) 2003-2006, Ericsson AB
5 * Copyright (c) 2005, 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:
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.
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
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.
37 #include <linux/init.h>
38 #include <linux/module.h>
39 #include <linux/kernel.h>
40 #include <linux/version.h>
41 #include <linux/random.h>
48 #include "name_table.h"
52 int eth_media_start(void);
53 void eth_media_stop(void);
54 int handler_start(void);
55 void handler_stop(void);
56 int socket_init(void);
57 void socket_stop(void);
58 int netlink_start(void);
59 void netlink_stop(void);
61 #define MOD_NAME "tipc_start: "
63 #ifndef CONFIG_TIPC_ZONES
64 #define CONFIG_TIPC_ZONES 3
67 #ifndef CONFIG_TIPC_CLUSTERS
68 #define CONFIG_TIPC_CLUSTERS 1
71 #ifndef CONFIG_TIPC_NODES
72 #define CONFIG_TIPC_NODES 255
75 #ifndef CONFIG_TIPC_SLAVE_NODES
76 #define CONFIG_TIPC_SLAVE_NODES 0
79 #ifndef CONFIG_TIPC_PORTS
80 #define CONFIG_TIPC_PORTS 8191
83 #ifndef CONFIG_TIPC_LOG
84 #define CONFIG_TIPC_LOG 0
87 /* global variables used by multiple sub-systems within TIPC */
89 int tipc_mode
= TIPC_NOT_RUNNING
;
91 atomic_t tipc_user_count
= ATOMIC_INIT(0);
93 const char tipc_alphabet
[] =
94 "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
96 /* configurable TIPC parameters */
100 int tipc_max_clusters
;
104 int tipc_max_subscriptions
;
105 int tipc_max_publications
;
107 int tipc_remote_management
;
110 int tipc_get_mode(void)
116 * stop_net - shut down TIPC networking sub-systems
126 * start_net - start TIPC networking sub-systems
133 if ((res
= tipc_start_net()) ||
134 (res
= eth_media_start())) {
141 * stop_core - switch TIPC from SINGLE NODE to NOT RUNNING mode
146 if (tipc_mode
!= TIPC_NODE_MODE
)
149 tipc_mode
= TIPC_NOT_RUNNING
;
162 * start_core - switch TIPC from NOT RUNNING to SINGLE NODE mode
169 if (tipc_mode
!= TIPC_NOT_RUNNING
)
172 get_random_bytes(&tipc_random
, sizeof(tipc_random
));
173 tipc_mode
= TIPC_NODE_MODE
;
175 if ((res
= handler_start()) ||
176 (res
= ref_table_init(tipc_max_ports
+ tipc_max_subscriptions
,
178 (res
= reg_start()) ||
179 (res
= nametbl_init()) ||
180 (res
= k_signal((Handler
)subscr_start
, 0)) ||
181 (res
= k_signal((Handler
)cfg_init
, 0)) ||
182 (res
= netlink_start()) ||
183 (res
= socket_init())) {
190 static int __init
tipc_init(void)
194 log_reinit(CONFIG_TIPC_LOG
);
195 info("Activated (compiled " __DATE__
" " __TIME__
")\n");
198 tipc_remote_management
= 1;
199 tipc_max_publications
= 10000;
200 tipc_max_subscriptions
= 2000;
201 tipc_max_ports
= delimit(CONFIG_TIPC_PORTS
, 127, 65536);
202 tipc_max_zones
= delimit(CONFIG_TIPC_ZONES
, 1, 511);
203 tipc_max_clusters
= delimit(CONFIG_TIPC_CLUSTERS
, 1, 1);
204 tipc_max_nodes
= delimit(CONFIG_TIPC_NODES
, 8, 2047);
205 tipc_max_slaves
= delimit(CONFIG_TIPC_SLAVE_NODES
, 0, 2047);
208 if ((res
= start_core()))
209 err("Unable to start in single node mode\n");
211 info("Started in single node mode\n");
215 static void __exit
tipc_exit(void)
219 info("Deactivated\n");
223 module_init(tipc_init
);
224 module_exit(tipc_exit
);
226 MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
227 MODULE_LICENSE("Dual BSD/GPL");
229 /* Native TIPC API for kernel-space applications (see tipc.h) */
231 EXPORT_SYMBOL(tipc_attach
);
232 EXPORT_SYMBOL(tipc_detach
);
233 EXPORT_SYMBOL(tipc_get_addr
);
234 EXPORT_SYMBOL(tipc_get_mode
);
235 EXPORT_SYMBOL(tipc_createport
);
236 EXPORT_SYMBOL(tipc_deleteport
);
237 EXPORT_SYMBOL(tipc_ownidentity
);
238 EXPORT_SYMBOL(tipc_portimportance
);
239 EXPORT_SYMBOL(tipc_set_portimportance
);
240 EXPORT_SYMBOL(tipc_portunreliable
);
241 EXPORT_SYMBOL(tipc_set_portunreliable
);
242 EXPORT_SYMBOL(tipc_portunreturnable
);
243 EXPORT_SYMBOL(tipc_set_portunreturnable
);
244 EXPORT_SYMBOL(tipc_publish
);
245 EXPORT_SYMBOL(tipc_withdraw
);
246 EXPORT_SYMBOL(tipc_connect2port
);
247 EXPORT_SYMBOL(tipc_disconnect
);
248 EXPORT_SYMBOL(tipc_shutdown
);
249 EXPORT_SYMBOL(tipc_isconnected
);
250 EXPORT_SYMBOL(tipc_peer
);
251 EXPORT_SYMBOL(tipc_ref_valid
);
252 EXPORT_SYMBOL(tipc_send
);
253 EXPORT_SYMBOL(tipc_send_buf
);
254 EXPORT_SYMBOL(tipc_send2name
);
255 EXPORT_SYMBOL(tipc_forward2name
);
256 EXPORT_SYMBOL(tipc_send_buf2name
);
257 EXPORT_SYMBOL(tipc_forward_buf2name
);
258 EXPORT_SYMBOL(tipc_send2port
);
259 EXPORT_SYMBOL(tipc_forward2port
);
260 EXPORT_SYMBOL(tipc_send_buf2port
);
261 EXPORT_SYMBOL(tipc_forward_buf2port
);
262 EXPORT_SYMBOL(tipc_multicast
);
263 /* EXPORT_SYMBOL(tipc_multicast_buf); not available yet */
264 EXPORT_SYMBOL(tipc_ispublished
);
265 EXPORT_SYMBOL(tipc_available_nodes
);
267 /* TIPC API for external bearers (see tipc_bearer.h) */
269 EXPORT_SYMBOL(tipc_block_bearer
);
270 EXPORT_SYMBOL(tipc_continue
);
271 EXPORT_SYMBOL(tipc_disable_bearer
);
272 EXPORT_SYMBOL(tipc_enable_bearer
);
273 EXPORT_SYMBOL(tipc_recv_msg
);
274 EXPORT_SYMBOL(tipc_register_media
);
276 /* TIPC API for external APIs (see tipc_port.h) */
278 EXPORT_SYMBOL(tipc_createport_raw
);
279 EXPORT_SYMBOL(tipc_set_msg_option
);
280 EXPORT_SYMBOL(tipc_reject_msg
);
281 EXPORT_SYMBOL(tipc_send_buf_fast
);
282 EXPORT_SYMBOL(tipc_acknowledge
);
283 EXPORT_SYMBOL(tipc_get_port
);
284 EXPORT_SYMBOL(tipc_get_handle
);