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639b321b AG |
1 | /* |
2 | * Copyright (c) 2006 Oracle. All rights reserved. | |
3 | * | |
4 | * This software is available to you under a choice of one of two | |
5 | * licenses. You may choose to be licensed under the terms of the GNU | |
6 | * General Public License (GPL) Version 2, available from the file | |
7 | * COPYING in the main directory of this source tree, or the | |
8 | * OpenIB.org BSD license below: | |
9 | * | |
10 | * Redistribution and use in source and binary forms, with or | |
11 | * without modification, are permitted provided that the following | |
12 | * conditions are met: | |
13 | * | |
14 | * - Redistributions of source code must retain the above | |
15 | * copyright notice, this list of conditions and the following | |
16 | * disclaimer. | |
17 | * | |
18 | * - Redistributions in binary form must reproduce the above | |
19 | * copyright notice, this list of conditions and the following | |
20 | * disclaimer in the documentation and/or other materials | |
21 | * provided with the distribution. | |
22 | * | |
23 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
24 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
25 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
26 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
27 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
28 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
29 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
30 | * SOFTWARE. | |
31 | * | |
32 | */ | |
33 | #include <linux/module.h> | |
34 | #include <linux/errno.h> | |
35 | #include <linux/kernel.h> | |
5a0e3ad6 | 36 | #include <linux/gfp.h> |
639b321b AG |
37 | #include <linux/in.h> |
38 | #include <linux/poll.h> | |
639b321b AG |
39 | #include <net/sock.h> |
40 | ||
41 | #include "rds.h" | |
42 | #include "rdma.h" | |
639b321b AG |
43 | |
44 | /* this is just used for stats gathering :/ */ | |
45 | static DEFINE_SPINLOCK(rds_sock_lock); | |
46 | static unsigned long rds_sock_count; | |
47 | static LIST_HEAD(rds_sock_list); | |
48 | DECLARE_WAIT_QUEUE_HEAD(rds_poll_waitq); | |
49 | ||
50 | /* | |
51 | * This is called as the final descriptor referencing this socket is closed. | |
52 | * We have to unbind the socket so that another socket can be bound to the | |
53 | * address it was using. | |
54 | * | |
55 | * We have to be careful about racing with the incoming path. sock_orphan() | |
56 | * sets SOCK_DEAD and we use that as an indicator to the rx path that new | |
57 | * messages shouldn't be queued. | |
58 | */ | |
59 | static int rds_release(struct socket *sock) | |
60 | { | |
61 | struct sock *sk = sock->sk; | |
62 | struct rds_sock *rs; | |
63 | unsigned long flags; | |
64 | ||
65 | if (sk == NULL) | |
66 | goto out; | |
67 | ||
68 | rs = rds_sk_to_rs(sk); | |
69 | ||
70 | sock_orphan(sk); | |
71 | /* Note - rds_clear_recv_queue grabs rs_recv_lock, so | |
72 | * that ensures the recv path has completed messing | |
73 | * with the socket. */ | |
74 | rds_clear_recv_queue(rs); | |
75 | rds_cong_remove_socket(rs); | |
76 | rds_remove_bound(rs); | |
77 | rds_send_drop_to(rs, NULL); | |
78 | rds_rdma_drop_keys(rs); | |
79 | rds_notify_queue_get(rs, NULL); | |
80 | ||
81 | spin_lock_irqsave(&rds_sock_lock, flags); | |
82 | list_del_init(&rs->rs_item); | |
83 | rds_sock_count--; | |
84 | spin_unlock_irqrestore(&rds_sock_lock, flags); | |
85 | ||
86 | sock->sk = NULL; | |
87 | sock_put(sk); | |
88 | out: | |
89 | return 0; | |
90 | } | |
91 | ||
92 | /* | |
93 | * Careful not to race with rds_release -> sock_orphan which clears sk_sleep. | |
94 | * _bh() isn't OK here, we're called from interrupt handlers. It's probably OK | |
95 | * to wake the waitqueue after sk_sleep is clear as we hold a sock ref, but | |
96 | * this seems more conservative. | |
97 | * NB - normally, one would use sk_callback_lock for this, but we can | |
98 | * get here from interrupts, whereas the network code grabs sk_callback_lock | |
99 | * with _lock_bh only - so relying on sk_callback_lock introduces livelocks. | |
100 | */ | |
101 | void rds_wake_sk_sleep(struct rds_sock *rs) | |
102 | { | |
103 | unsigned long flags; | |
104 | ||
105 | read_lock_irqsave(&rs->rs_recv_lock, flags); | |
106 | __rds_wake_sk_sleep(rds_rs_to_sk(rs)); | |
107 | read_unlock_irqrestore(&rs->rs_recv_lock, flags); | |
108 | } | |
109 | ||
110 | static int rds_getname(struct socket *sock, struct sockaddr *uaddr, | |
111 | int *uaddr_len, int peer) | |
112 | { | |
113 | struct sockaddr_in *sin = (struct sockaddr_in *)uaddr; | |
114 | struct rds_sock *rs = rds_sk_to_rs(sock->sk); | |
115 | ||
116 | memset(sin->sin_zero, 0, sizeof(sin->sin_zero)); | |
117 | ||
118 | /* racey, don't care */ | |
119 | if (peer) { | |
120 | if (!rs->rs_conn_addr) | |
121 | return -ENOTCONN; | |
122 | ||
123 | sin->sin_port = rs->rs_conn_port; | |
124 | sin->sin_addr.s_addr = rs->rs_conn_addr; | |
125 | } else { | |
126 | sin->sin_port = rs->rs_bound_port; | |
127 | sin->sin_addr.s_addr = rs->rs_bound_addr; | |
128 | } | |
129 | ||
130 | sin->sin_family = AF_INET; | |
131 | ||
132 | *uaddr_len = sizeof(*sin); | |
133 | return 0; | |
134 | } | |
135 | ||
136 | /* | |
137 | * RDS' poll is without a doubt the least intuitive part of the interface, | |
138 | * as POLLIN and POLLOUT do not behave entirely as you would expect from | |
139 | * a network protocol. | |
140 | * | |
141 | * POLLIN is asserted if | |
142 | * - there is data on the receive queue. | |
143 | * - to signal that a previously congested destination may have become | |
144 | * uncongested | |
145 | * - A notification has been queued to the socket (this can be a congestion | |
146 | * update, or a RDMA completion). | |
147 | * | |
148 | * POLLOUT is asserted if there is room on the send queue. This does not mean | |
149 | * however, that the next sendmsg() call will succeed. If the application tries | |
150 | * to send to a congested destination, the system call may still fail (and | |
151 | * return ENOBUFS). | |
152 | */ | |
153 | static unsigned int rds_poll(struct file *file, struct socket *sock, | |
154 | poll_table *wait) | |
155 | { | |
156 | struct sock *sk = sock->sk; | |
157 | struct rds_sock *rs = rds_sk_to_rs(sk); | |
158 | unsigned int mask = 0; | |
159 | unsigned long flags; | |
160 | ||
aa395145 | 161 | poll_wait(file, sk_sleep(sk), wait); |
639b321b | 162 | |
b98ba52f AG |
163 | if (rs->rs_seen_congestion) |
164 | poll_wait(file, &rds_poll_waitq, wait); | |
639b321b AG |
165 | |
166 | read_lock_irqsave(&rs->rs_recv_lock, flags); | |
167 | if (!rs->rs_cong_monitor) { | |
168 | /* When a congestion map was updated, we signal POLLIN for | |
169 | * "historical" reasons. Applications can also poll for | |
170 | * WRBAND instead. */ | |
171 | if (rds_cong_updated_since(&rs->rs_cong_track)) | |
172 | mask |= (POLLIN | POLLRDNORM | POLLWRBAND); | |
173 | } else { | |
174 | spin_lock(&rs->rs_lock); | |
175 | if (rs->rs_cong_notify) | |
176 | mask |= (POLLIN | POLLRDNORM); | |
177 | spin_unlock(&rs->rs_lock); | |
178 | } | |
f64f9e71 JP |
179 | if (!list_empty(&rs->rs_recv_queue) || |
180 | !list_empty(&rs->rs_notify_queue)) | |
639b321b AG |
181 | mask |= (POLLIN | POLLRDNORM); |
182 | if (rs->rs_snd_bytes < rds_sk_sndbuf(rs)) | |
183 | mask |= (POLLOUT | POLLWRNORM); | |
184 | read_unlock_irqrestore(&rs->rs_recv_lock, flags); | |
185 | ||
b98ba52f AG |
186 | /* clear state any time we wake a seen-congested socket */ |
187 | if (mask) | |
188 | rs->rs_seen_congestion = 0; | |
189 | ||
639b321b AG |
190 | return mask; |
191 | } | |
192 | ||
193 | static int rds_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) | |
194 | { | |
195 | return -ENOIOCTLCMD; | |
196 | } | |
197 | ||
198 | static int rds_cancel_sent_to(struct rds_sock *rs, char __user *optval, | |
199 | int len) | |
200 | { | |
201 | struct sockaddr_in sin; | |
202 | int ret = 0; | |
203 | ||
204 | /* racing with another thread binding seems ok here */ | |
205 | if (rs->rs_bound_addr == 0) { | |
206 | ret = -ENOTCONN; /* XXX not a great errno */ | |
207 | goto out; | |
208 | } | |
209 | ||
210 | if (len < sizeof(struct sockaddr_in)) { | |
211 | ret = -EINVAL; | |
212 | goto out; | |
213 | } | |
214 | ||
215 | if (copy_from_user(&sin, optval, sizeof(sin))) { | |
216 | ret = -EFAULT; | |
217 | goto out; | |
218 | } | |
219 | ||
220 | rds_send_drop_to(rs, &sin); | |
221 | out: | |
222 | return ret; | |
223 | } | |
224 | ||
225 | static int rds_set_bool_option(unsigned char *optvar, char __user *optval, | |
226 | int optlen) | |
227 | { | |
228 | int value; | |
229 | ||
230 | if (optlen < sizeof(int)) | |
231 | return -EINVAL; | |
232 | if (get_user(value, (int __user *) optval)) | |
233 | return -EFAULT; | |
234 | *optvar = !!value; | |
235 | return 0; | |
236 | } | |
237 | ||
238 | static int rds_cong_monitor(struct rds_sock *rs, char __user *optval, | |
239 | int optlen) | |
240 | { | |
241 | int ret; | |
242 | ||
243 | ret = rds_set_bool_option(&rs->rs_cong_monitor, optval, optlen); | |
244 | if (ret == 0) { | |
245 | if (rs->rs_cong_monitor) { | |
246 | rds_cong_add_socket(rs); | |
247 | } else { | |
248 | rds_cong_remove_socket(rs); | |
249 | rs->rs_cong_mask = 0; | |
250 | rs->rs_cong_notify = 0; | |
251 | } | |
252 | } | |
253 | return ret; | |
254 | } | |
255 | ||
256 | static int rds_setsockopt(struct socket *sock, int level, int optname, | |
b7058842 | 257 | char __user *optval, unsigned int optlen) |
639b321b AG |
258 | { |
259 | struct rds_sock *rs = rds_sk_to_rs(sock->sk); | |
260 | int ret; | |
261 | ||
262 | if (level != SOL_RDS) { | |
263 | ret = -ENOPROTOOPT; | |
264 | goto out; | |
265 | } | |
266 | ||
267 | switch (optname) { | |
268 | case RDS_CANCEL_SENT_TO: | |
269 | ret = rds_cancel_sent_to(rs, optval, optlen); | |
270 | break; | |
271 | case RDS_GET_MR: | |
272 | ret = rds_get_mr(rs, optval, optlen); | |
273 | break; | |
244546f0 AG |
274 | case RDS_GET_MR_FOR_DEST: |
275 | ret = rds_get_mr_for_dest(rs, optval, optlen); | |
276 | break; | |
639b321b AG |
277 | case RDS_FREE_MR: |
278 | ret = rds_free_mr(rs, optval, optlen); | |
279 | break; | |
280 | case RDS_RECVERR: | |
281 | ret = rds_set_bool_option(&rs->rs_recverr, optval, optlen); | |
282 | break; | |
283 | case RDS_CONG_MONITOR: | |
284 | ret = rds_cong_monitor(rs, optval, optlen); | |
285 | break; | |
286 | default: | |
287 | ret = -ENOPROTOOPT; | |
288 | } | |
289 | out: | |
290 | return ret; | |
291 | } | |
292 | ||
293 | static int rds_getsockopt(struct socket *sock, int level, int optname, | |
294 | char __user *optval, int __user *optlen) | |
295 | { | |
296 | struct rds_sock *rs = rds_sk_to_rs(sock->sk); | |
297 | int ret = -ENOPROTOOPT, len; | |
298 | ||
299 | if (level != SOL_RDS) | |
300 | goto out; | |
301 | ||
302 | if (get_user(len, optlen)) { | |
303 | ret = -EFAULT; | |
304 | goto out; | |
305 | } | |
306 | ||
307 | switch (optname) { | |
308 | case RDS_INFO_FIRST ... RDS_INFO_LAST: | |
309 | ret = rds_info_getsockopt(sock, optname, optval, | |
310 | optlen); | |
311 | break; | |
312 | ||
313 | case RDS_RECVERR: | |
314 | if (len < sizeof(int)) | |
315 | ret = -EINVAL; | |
316 | else | |
f64f9e71 JP |
317 | if (put_user(rs->rs_recverr, (int __user *) optval) || |
318 | put_user(sizeof(int), optlen)) | |
639b321b AG |
319 | ret = -EFAULT; |
320 | else | |
321 | ret = 0; | |
322 | break; | |
323 | default: | |
324 | break; | |
325 | } | |
326 | ||
327 | out: | |
328 | return ret; | |
329 | ||
330 | } | |
331 | ||
332 | static int rds_connect(struct socket *sock, struct sockaddr *uaddr, | |
333 | int addr_len, int flags) | |
334 | { | |
335 | struct sock *sk = sock->sk; | |
336 | struct sockaddr_in *sin = (struct sockaddr_in *)uaddr; | |
337 | struct rds_sock *rs = rds_sk_to_rs(sk); | |
338 | int ret = 0; | |
339 | ||
340 | lock_sock(sk); | |
341 | ||
342 | if (addr_len != sizeof(struct sockaddr_in)) { | |
343 | ret = -EINVAL; | |
344 | goto out; | |
345 | } | |
346 | ||
347 | if (sin->sin_family != AF_INET) { | |
348 | ret = -EAFNOSUPPORT; | |
349 | goto out; | |
350 | } | |
351 | ||
352 | if (sin->sin_addr.s_addr == htonl(INADDR_ANY)) { | |
353 | ret = -EDESTADDRREQ; | |
354 | goto out; | |
355 | } | |
356 | ||
357 | rs->rs_conn_addr = sin->sin_addr.s_addr; | |
358 | rs->rs_conn_port = sin->sin_port; | |
359 | ||
360 | out: | |
361 | release_sock(sk); | |
362 | return ret; | |
363 | } | |
364 | ||
365 | static struct proto rds_proto = { | |
366 | .name = "RDS", | |
367 | .owner = THIS_MODULE, | |
368 | .obj_size = sizeof(struct rds_sock), | |
369 | }; | |
370 | ||
5708e868 | 371 | static const struct proto_ops rds_proto_ops = { |
639b321b AG |
372 | .family = AF_RDS, |
373 | .owner = THIS_MODULE, | |
374 | .release = rds_release, | |
375 | .bind = rds_bind, | |
376 | .connect = rds_connect, | |
377 | .socketpair = sock_no_socketpair, | |
378 | .accept = sock_no_accept, | |
379 | .getname = rds_getname, | |
380 | .poll = rds_poll, | |
381 | .ioctl = rds_ioctl, | |
382 | .listen = sock_no_listen, | |
383 | .shutdown = sock_no_shutdown, | |
384 | .setsockopt = rds_setsockopt, | |
385 | .getsockopt = rds_getsockopt, | |
386 | .sendmsg = rds_sendmsg, | |
387 | .recvmsg = rds_recvmsg, | |
388 | .mmap = sock_no_mmap, | |
389 | .sendpage = sock_no_sendpage, | |
390 | }; | |
391 | ||
392 | static int __rds_create(struct socket *sock, struct sock *sk, int protocol) | |
393 | { | |
394 | unsigned long flags; | |
395 | struct rds_sock *rs; | |
396 | ||
397 | sock_init_data(sock, sk); | |
398 | sock->ops = &rds_proto_ops; | |
399 | sk->sk_protocol = protocol; | |
400 | ||
401 | rs = rds_sk_to_rs(sk); | |
402 | spin_lock_init(&rs->rs_lock); | |
403 | rwlock_init(&rs->rs_recv_lock); | |
404 | INIT_LIST_HEAD(&rs->rs_send_queue); | |
405 | INIT_LIST_HEAD(&rs->rs_recv_queue); | |
406 | INIT_LIST_HEAD(&rs->rs_notify_queue); | |
407 | INIT_LIST_HEAD(&rs->rs_cong_list); | |
408 | spin_lock_init(&rs->rs_rdma_lock); | |
409 | rs->rs_rdma_keys = RB_ROOT; | |
410 | ||
411 | spin_lock_irqsave(&rds_sock_lock, flags); | |
412 | list_add_tail(&rs->rs_item, &rds_sock_list); | |
413 | rds_sock_count++; | |
414 | spin_unlock_irqrestore(&rds_sock_lock, flags); | |
415 | ||
416 | return 0; | |
417 | } | |
418 | ||
3f378b68 EP |
419 | static int rds_create(struct net *net, struct socket *sock, int protocol, |
420 | int kern) | |
639b321b AG |
421 | { |
422 | struct sock *sk; | |
423 | ||
424 | if (sock->type != SOCK_SEQPACKET || protocol) | |
425 | return -ESOCKTNOSUPPORT; | |
426 | ||
427 | sk = sk_alloc(net, AF_RDS, GFP_ATOMIC, &rds_proto); | |
428 | if (!sk) | |
429 | return -ENOMEM; | |
430 | ||
431 | return __rds_create(sock, sk, protocol); | |
432 | } | |
433 | ||
434 | void rds_sock_addref(struct rds_sock *rs) | |
435 | { | |
436 | sock_hold(rds_rs_to_sk(rs)); | |
437 | } | |
438 | ||
439 | void rds_sock_put(struct rds_sock *rs) | |
440 | { | |
441 | sock_put(rds_rs_to_sk(rs)); | |
442 | } | |
443 | ||
ec1b4cf7 | 444 | static const struct net_proto_family rds_family_ops = { |
639b321b AG |
445 | .family = AF_RDS, |
446 | .create = rds_create, | |
447 | .owner = THIS_MODULE, | |
448 | }; | |
449 | ||
450 | static void rds_sock_inc_info(struct socket *sock, unsigned int len, | |
451 | struct rds_info_iterator *iter, | |
452 | struct rds_info_lengths *lens) | |
453 | { | |
454 | struct rds_sock *rs; | |
639b321b AG |
455 | struct rds_incoming *inc; |
456 | unsigned long flags; | |
457 | unsigned int total = 0; | |
458 | ||
459 | len /= sizeof(struct rds_info_message); | |
460 | ||
461 | spin_lock_irqsave(&rds_sock_lock, flags); | |
462 | ||
463 | list_for_each_entry(rs, &rds_sock_list, rs_item) { | |
639b321b AG |
464 | read_lock(&rs->rs_recv_lock); |
465 | ||
466 | /* XXX too lazy to maintain counts.. */ | |
467 | list_for_each_entry(inc, &rs->rs_recv_queue, i_item) { | |
468 | total++; | |
469 | if (total <= len) | |
470 | rds_inc_info_copy(inc, iter, inc->i_saddr, | |
471 | rs->rs_bound_addr, 1); | |
472 | } | |
473 | ||
474 | read_unlock(&rs->rs_recv_lock); | |
475 | } | |
476 | ||
477 | spin_unlock_irqrestore(&rds_sock_lock, flags); | |
478 | ||
479 | lens->nr = total; | |
480 | lens->each = sizeof(struct rds_info_message); | |
481 | } | |
482 | ||
483 | static void rds_sock_info(struct socket *sock, unsigned int len, | |
484 | struct rds_info_iterator *iter, | |
485 | struct rds_info_lengths *lens) | |
486 | { | |
487 | struct rds_info_socket sinfo; | |
488 | struct rds_sock *rs; | |
489 | unsigned long flags; | |
490 | ||
491 | len /= sizeof(struct rds_info_socket); | |
492 | ||
493 | spin_lock_irqsave(&rds_sock_lock, flags); | |
494 | ||
495 | if (len < rds_sock_count) | |
496 | goto out; | |
497 | ||
498 | list_for_each_entry(rs, &rds_sock_list, rs_item) { | |
499 | sinfo.sndbuf = rds_sk_sndbuf(rs); | |
500 | sinfo.rcvbuf = rds_sk_rcvbuf(rs); | |
501 | sinfo.bound_addr = rs->rs_bound_addr; | |
502 | sinfo.connected_addr = rs->rs_conn_addr; | |
503 | sinfo.bound_port = rs->rs_bound_port; | |
504 | sinfo.connected_port = rs->rs_conn_port; | |
505 | sinfo.inum = sock_i_ino(rds_rs_to_sk(rs)); | |
506 | ||
507 | rds_info_copy(iter, &sinfo, sizeof(sinfo)); | |
508 | } | |
509 | ||
510 | out: | |
511 | lens->nr = rds_sock_count; | |
512 | lens->each = sizeof(struct rds_info_socket); | |
513 | ||
514 | spin_unlock_irqrestore(&rds_sock_lock, flags); | |
515 | } | |
516 | ||
517 | static void __exit rds_exit(void) | |
518 | { | |
639b321b AG |
519 | sock_unregister(rds_family_ops.family); |
520 | proto_unregister(&rds_proto); | |
521 | rds_conn_exit(); | |
522 | rds_cong_exit(); | |
523 | rds_sysctl_exit(); | |
524 | rds_threads_exit(); | |
525 | rds_stats_exit(); | |
526 | rds_page_exit(); | |
527 | rds_info_deregister_func(RDS_INFO_SOCKETS, rds_sock_info); | |
528 | rds_info_deregister_func(RDS_INFO_RECV_MESSAGES, rds_sock_inc_info); | |
529 | } | |
530 | module_exit(rds_exit); | |
531 | ||
532 | static int __init rds_init(void) | |
533 | { | |
534 | int ret; | |
535 | ||
536 | ret = rds_conn_init(); | |
537 | if (ret) | |
538 | goto out; | |
539 | ret = rds_threads_init(); | |
540 | if (ret) | |
541 | goto out_conn; | |
542 | ret = rds_sysctl_init(); | |
543 | if (ret) | |
544 | goto out_threads; | |
545 | ret = rds_stats_init(); | |
546 | if (ret) | |
547 | goto out_sysctl; | |
548 | ret = proto_register(&rds_proto, 1); | |
549 | if (ret) | |
550 | goto out_stats; | |
551 | ret = sock_register(&rds_family_ops); | |
552 | if (ret) | |
553 | goto out_proto; | |
554 | ||
555 | rds_info_register_func(RDS_INFO_SOCKETS, rds_sock_info); | |
556 | rds_info_register_func(RDS_INFO_RECV_MESSAGES, rds_sock_inc_info); | |
557 | ||
639b321b AG |
558 | goto out; |
559 | ||
639b321b AG |
560 | out_proto: |
561 | proto_unregister(&rds_proto); | |
562 | out_stats: | |
563 | rds_stats_exit(); | |
564 | out_sysctl: | |
565 | rds_sysctl_exit(); | |
566 | out_threads: | |
567 | rds_threads_exit(); | |
568 | out_conn: | |
569 | rds_conn_exit(); | |
570 | rds_cong_exit(); | |
571 | rds_page_exit(); | |
572 | out: | |
573 | return ret; | |
574 | } | |
575 | module_init(rds_init); | |
576 | ||
577 | #define DRV_VERSION "4.0" | |
578 | #define DRV_RELDATE "Feb 12, 2009" | |
579 | ||
580 | MODULE_AUTHOR("Oracle Corporation <rds-devel@oss.oracle.com>"); | |
581 | MODULE_DESCRIPTION("RDS: Reliable Datagram Sockets" | |
582 | " v" DRV_VERSION " (" DRV_RELDATE ")"); | |
583 | MODULE_VERSION(DRV_VERSION); | |
584 | MODULE_LICENSE("Dual BSD/GPL"); | |
585 | MODULE_ALIAS_NETPROTO(PF_RDS); |