Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * This program is free software; you can redistribute it and/or modify | |
3 | * it under the terms of the GNU General Public License as published by | |
4 | * the Free Software Foundation; either version 2 of the License, or | |
5 | * (at your option) any later version. | |
6 | * | |
7 | * Copyright (C) Jonathan Naylor G4KLX (g4klx@g4klx.demon.co.uk) | |
8 | * Copyright (C) Alan Cox GW4PTS (alan@lxorguk.ukuu.org.uk) | |
9 | * Copyright (C) Terry Dawson VK2KTJ (terry@animats.net) | |
10 | * Copyright (C) Tomi Manninen OH2BNS (oh2bns@sral.fi) | |
11 | */ | |
4fc268d2 | 12 | |
4fc268d2 | 13 | #include <linux/capability.h> |
1da177e4 LT |
14 | #include <linux/module.h> |
15 | #include <linux/moduleparam.h> | |
16 | #include <linux/init.h> | |
17 | #include <linux/errno.h> | |
18 | #include <linux/types.h> | |
19 | #include <linux/socket.h> | |
20 | #include <linux/in.h> | |
21 | #include <linux/kernel.h> | |
22 | #include <linux/sched.h> | |
23 | #include <linux/spinlock.h> | |
24 | #include <linux/timer.h> | |
25 | #include <linux/string.h> | |
26 | #include <linux/sockios.h> | |
27 | #include <linux/net.h> | |
28 | #include <linux/stat.h> | |
457c4cbc | 29 | #include <net/net_namespace.h> |
1da177e4 LT |
30 | #include <net/ax25.h> |
31 | #include <linux/inet.h> | |
32 | #include <linux/netdevice.h> | |
33 | #include <linux/if_arp.h> | |
34 | #include <linux/skbuff.h> | |
35 | #include <net/sock.h> | |
36 | #include <asm/system.h> | |
37 | #include <asm/uaccess.h> | |
38 | #include <linux/fcntl.h> | |
39 | #include <linux/termios.h> | |
40 | #include <linux/mm.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/notifier.h> | |
43 | #include <net/rose.h> | |
44 | #include <linux/proc_fs.h> | |
45 | #include <linux/seq_file.h> | |
c752f073 | 46 | #include <net/tcp_states.h> |
1da177e4 LT |
47 | #include <net/ip.h> |
48 | #include <net/arp.h> | |
49 | ||
50 | static int rose_ndevs = 10; | |
51 | ||
52 | int sysctl_rose_restart_request_timeout = ROSE_DEFAULT_T0; | |
53 | int sysctl_rose_call_request_timeout = ROSE_DEFAULT_T1; | |
54 | int sysctl_rose_reset_request_timeout = ROSE_DEFAULT_T2; | |
55 | int sysctl_rose_clear_request_timeout = ROSE_DEFAULT_T3; | |
56 | int sysctl_rose_no_activity_timeout = ROSE_DEFAULT_IDLE; | |
57 | int sysctl_rose_ack_hold_back_timeout = ROSE_DEFAULT_HB; | |
58 | int sysctl_rose_routing_control = ROSE_DEFAULT_ROUTING; | |
59 | int sysctl_rose_link_fail_timeout = ROSE_DEFAULT_FAIL_TIMEOUT; | |
60 | int sysctl_rose_maximum_vcs = ROSE_DEFAULT_MAXVC; | |
61 | int sysctl_rose_window_size = ROSE_DEFAULT_WINDOW_SIZE; | |
62 | ||
63 | static HLIST_HEAD(rose_list); | |
64 | static DEFINE_SPINLOCK(rose_list_lock); | |
65 | ||
66 | static struct proto_ops rose_proto_ops; | |
67 | ||
68 | ax25_address rose_callsign; | |
69 | ||
b1d21ca8 RB |
70 | /* |
71 | * ROSE network devices are virtual network devices encapsulating ROSE | |
72 | * frames into AX.25 which will be sent through an AX.25 device, so form a | |
73 | * special "super class" of normal net devices; split their locks off into a | |
74 | * separate class since they always nest. | |
75 | */ | |
76 | static struct lock_class_key rose_netdev_xmit_lock_key; | |
77 | ||
1da177e4 LT |
78 | /* |
79 | * Convert a ROSE address into text. | |
80 | */ | |
81 | const char *rose2asc(const rose_address *addr) | |
82 | { | |
83 | static char buffer[11]; | |
84 | ||
85 | if (addr->rose_addr[0] == 0x00 && addr->rose_addr[1] == 0x00 && | |
86 | addr->rose_addr[2] == 0x00 && addr->rose_addr[3] == 0x00 && | |
87 | addr->rose_addr[4] == 0x00) { | |
88 | strcpy(buffer, "*"); | |
89 | } else { | |
90 | sprintf(buffer, "%02X%02X%02X%02X%02X", addr->rose_addr[0] & 0xFF, | |
91 | addr->rose_addr[1] & 0xFF, | |
92 | addr->rose_addr[2] & 0xFF, | |
93 | addr->rose_addr[3] & 0xFF, | |
94 | addr->rose_addr[4] & 0xFF); | |
95 | } | |
96 | ||
97 | return buffer; | |
98 | } | |
99 | ||
100 | /* | |
101 | * Compare two ROSE addresses, 0 == equal. | |
102 | */ | |
103 | int rosecmp(rose_address *addr1, rose_address *addr2) | |
104 | { | |
105 | int i; | |
106 | ||
107 | for (i = 0; i < 5; i++) | |
108 | if (addr1->rose_addr[i] != addr2->rose_addr[i]) | |
109 | return 1; | |
110 | ||
111 | return 0; | |
112 | } | |
113 | ||
114 | /* | |
115 | * Compare two ROSE addresses for only mask digits, 0 == equal. | |
116 | */ | |
117 | int rosecmpm(rose_address *addr1, rose_address *addr2, unsigned short mask) | |
118 | { | |
119 | int i, j; | |
120 | ||
121 | if (mask > 10) | |
122 | return 1; | |
123 | ||
124 | for (i = 0; i < mask; i++) { | |
125 | j = i / 2; | |
126 | ||
127 | if ((i % 2) != 0) { | |
128 | if ((addr1->rose_addr[j] & 0x0F) != (addr2->rose_addr[j] & 0x0F)) | |
129 | return 1; | |
130 | } else { | |
131 | if ((addr1->rose_addr[j] & 0xF0) != (addr2->rose_addr[j] & 0xF0)) | |
132 | return 1; | |
133 | } | |
134 | } | |
135 | ||
136 | return 0; | |
137 | } | |
138 | ||
139 | /* | |
140 | * Socket removal during an interrupt is now safe. | |
141 | */ | |
142 | static void rose_remove_socket(struct sock *sk) | |
143 | { | |
144 | spin_lock_bh(&rose_list_lock); | |
145 | sk_del_node_init(sk); | |
146 | spin_unlock_bh(&rose_list_lock); | |
147 | } | |
148 | ||
149 | /* | |
150 | * Kill all bound sockets on a broken link layer connection to a | |
151 | * particular neighbour. | |
152 | */ | |
153 | void rose_kill_by_neigh(struct rose_neigh *neigh) | |
154 | { | |
155 | struct sock *s; | |
156 | struct hlist_node *node; | |
157 | ||
158 | spin_lock_bh(&rose_list_lock); | |
159 | sk_for_each(s, node, &rose_list) { | |
160 | struct rose_sock *rose = rose_sk(s); | |
161 | ||
162 | if (rose->neighbour == neigh) { | |
163 | rose_disconnect(s, ENETUNREACH, ROSE_OUT_OF_ORDER, 0); | |
164 | rose->neighbour->use--; | |
165 | rose->neighbour = NULL; | |
166 | } | |
167 | } | |
168 | spin_unlock_bh(&rose_list_lock); | |
169 | } | |
170 | ||
171 | /* | |
172 | * Kill all bound sockets on a dropped device. | |
173 | */ | |
174 | static void rose_kill_by_device(struct net_device *dev) | |
175 | { | |
176 | struct sock *s; | |
177 | struct hlist_node *node; | |
178 | ||
179 | spin_lock_bh(&rose_list_lock); | |
180 | sk_for_each(s, node, &rose_list) { | |
181 | struct rose_sock *rose = rose_sk(s); | |
182 | ||
183 | if (rose->device == dev) { | |
184 | rose_disconnect(s, ENETUNREACH, ROSE_OUT_OF_ORDER, 0); | |
185 | rose->neighbour->use--; | |
186 | rose->device = NULL; | |
187 | } | |
188 | } | |
189 | spin_unlock_bh(&rose_list_lock); | |
190 | } | |
191 | ||
192 | /* | |
193 | * Handle device status changes. | |
194 | */ | |
195 | static int rose_device_event(struct notifier_block *this, unsigned long event, | |
196 | void *ptr) | |
197 | { | |
198 | struct net_device *dev = (struct net_device *)ptr; | |
199 | ||
e9dc8653 EB |
200 | if (dev->nd_net != &init_net) |
201 | return NOTIFY_DONE; | |
202 | ||
1da177e4 LT |
203 | if (event != NETDEV_DOWN) |
204 | return NOTIFY_DONE; | |
205 | ||
206 | switch (dev->type) { | |
207 | case ARPHRD_ROSE: | |
208 | rose_kill_by_device(dev); | |
209 | break; | |
210 | case ARPHRD_AX25: | |
211 | rose_link_device_down(dev); | |
212 | rose_rt_device_down(dev); | |
213 | break; | |
214 | } | |
215 | ||
216 | return NOTIFY_DONE; | |
217 | } | |
218 | ||
219 | /* | |
220 | * Add a socket to the bound sockets list. | |
221 | */ | |
222 | static void rose_insert_socket(struct sock *sk) | |
223 | { | |
224 | ||
225 | spin_lock_bh(&rose_list_lock); | |
226 | sk_add_node(sk, &rose_list); | |
227 | spin_unlock_bh(&rose_list_lock); | |
228 | } | |
229 | ||
230 | /* | |
231 | * Find a socket that wants to accept the Call Request we just | |
232 | * received. | |
233 | */ | |
234 | static struct sock *rose_find_listener(rose_address *addr, ax25_address *call) | |
235 | { | |
236 | struct sock *s; | |
237 | struct hlist_node *node; | |
238 | ||
239 | spin_lock_bh(&rose_list_lock); | |
240 | sk_for_each(s, node, &rose_list) { | |
241 | struct rose_sock *rose = rose_sk(s); | |
242 | ||
243 | if (!rosecmp(&rose->source_addr, addr) && | |
244 | !ax25cmp(&rose->source_call, call) && | |
245 | !rose->source_ndigis && s->sk_state == TCP_LISTEN) | |
246 | goto found; | |
247 | } | |
248 | ||
249 | sk_for_each(s, node, &rose_list) { | |
250 | struct rose_sock *rose = rose_sk(s); | |
251 | ||
252 | if (!rosecmp(&rose->source_addr, addr) && | |
253 | !ax25cmp(&rose->source_call, &null_ax25_address) && | |
254 | s->sk_state == TCP_LISTEN) | |
255 | goto found; | |
256 | } | |
257 | s = NULL; | |
258 | found: | |
259 | spin_unlock_bh(&rose_list_lock); | |
260 | return s; | |
261 | } | |
262 | ||
263 | /* | |
264 | * Find a connected ROSE socket given my LCI and device. | |
265 | */ | |
266 | struct sock *rose_find_socket(unsigned int lci, struct rose_neigh *neigh) | |
267 | { | |
268 | struct sock *s; | |
269 | struct hlist_node *node; | |
270 | ||
271 | spin_lock_bh(&rose_list_lock); | |
272 | sk_for_each(s, node, &rose_list) { | |
273 | struct rose_sock *rose = rose_sk(s); | |
274 | ||
275 | if (rose->lci == lci && rose->neighbour == neigh) | |
276 | goto found; | |
277 | } | |
278 | s = NULL; | |
279 | found: | |
280 | spin_unlock_bh(&rose_list_lock); | |
281 | return s; | |
282 | } | |
283 | ||
284 | /* | |
285 | * Find a unique LCI for a given device. | |
286 | */ | |
287 | unsigned int rose_new_lci(struct rose_neigh *neigh) | |
288 | { | |
289 | int lci; | |
290 | ||
291 | if (neigh->dce_mode) { | |
292 | for (lci = 1; lci <= sysctl_rose_maximum_vcs; lci++) | |
293 | if (rose_find_socket(lci, neigh) == NULL && rose_route_free_lci(lci, neigh) == NULL) | |
294 | return lci; | |
295 | } else { | |
296 | for (lci = sysctl_rose_maximum_vcs; lci > 0; lci--) | |
297 | if (rose_find_socket(lci, neigh) == NULL && rose_route_free_lci(lci, neigh) == NULL) | |
298 | return lci; | |
299 | } | |
300 | ||
301 | return 0; | |
302 | } | |
303 | ||
304 | /* | |
305 | * Deferred destroy. | |
306 | */ | |
307 | void rose_destroy_socket(struct sock *); | |
308 | ||
309 | /* | |
310 | * Handler for deferred kills. | |
311 | */ | |
312 | static void rose_destroy_timer(unsigned long data) | |
313 | { | |
314 | rose_destroy_socket((struct sock *)data); | |
315 | } | |
316 | ||
317 | /* | |
318 | * This is called from user mode and the timers. Thus it protects itself | |
319 | * against interrupt users but doesn't worry about being called during | |
320 | * work. Once it is removed from the queue no interrupt or bottom half | |
321 | * will touch it and we are (fairly 8-) ) safe. | |
322 | */ | |
323 | void rose_destroy_socket(struct sock *sk) | |
324 | { | |
325 | struct sk_buff *skb; | |
326 | ||
327 | rose_remove_socket(sk); | |
328 | rose_stop_heartbeat(sk); | |
329 | rose_stop_idletimer(sk); | |
330 | rose_stop_timer(sk); | |
331 | ||
332 | rose_clear_queues(sk); /* Flush the queues */ | |
333 | ||
334 | while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) { | |
335 | if (skb->sk != sk) { /* A pending connection */ | |
336 | /* Queue the unaccepted socket for death */ | |
337 | sock_set_flag(skb->sk, SOCK_DEAD); | |
338 | rose_start_heartbeat(skb->sk); | |
339 | rose_sk(skb->sk)->state = ROSE_STATE_0; | |
340 | } | |
341 | ||
342 | kfree_skb(skb); | |
343 | } | |
344 | ||
345 | if (atomic_read(&sk->sk_wmem_alloc) || | |
346 | atomic_read(&sk->sk_rmem_alloc)) { | |
347 | /* Defer: outstanding buffers */ | |
348 | init_timer(&sk->sk_timer); | |
349 | sk->sk_timer.expires = jiffies + 10 * HZ; | |
350 | sk->sk_timer.function = rose_destroy_timer; | |
351 | sk->sk_timer.data = (unsigned long)sk; | |
352 | add_timer(&sk->sk_timer); | |
353 | } else | |
354 | sock_put(sk); | |
355 | } | |
356 | ||
357 | /* | |
358 | * Handling for system calls applied via the various interfaces to a | |
359 | * ROSE socket object. | |
360 | */ | |
361 | ||
362 | static int rose_setsockopt(struct socket *sock, int level, int optname, | |
363 | char __user *optval, int optlen) | |
364 | { | |
365 | struct sock *sk = sock->sk; | |
366 | struct rose_sock *rose = rose_sk(sk); | |
367 | int opt; | |
368 | ||
369 | if (level != SOL_ROSE) | |
370 | return -ENOPROTOOPT; | |
371 | ||
372 | if (optlen < sizeof(int)) | |
373 | return -EINVAL; | |
374 | ||
375 | if (get_user(opt, (int __user *)optval)) | |
376 | return -EFAULT; | |
377 | ||
378 | switch (optname) { | |
379 | case ROSE_DEFER: | |
380 | rose->defer = opt ? 1 : 0; | |
381 | return 0; | |
382 | ||
383 | case ROSE_T1: | |
384 | if (opt < 1) | |
385 | return -EINVAL; | |
386 | rose->t1 = opt * HZ; | |
387 | return 0; | |
388 | ||
389 | case ROSE_T2: | |
390 | if (opt < 1) | |
391 | return -EINVAL; | |
392 | rose->t2 = opt * HZ; | |
393 | return 0; | |
394 | ||
395 | case ROSE_T3: | |
396 | if (opt < 1) | |
397 | return -EINVAL; | |
398 | rose->t3 = opt * HZ; | |
399 | return 0; | |
400 | ||
401 | case ROSE_HOLDBACK: | |
402 | if (opt < 1) | |
403 | return -EINVAL; | |
404 | rose->hb = opt * HZ; | |
405 | return 0; | |
406 | ||
407 | case ROSE_IDLE: | |
408 | if (opt < 0) | |
409 | return -EINVAL; | |
410 | rose->idle = opt * 60 * HZ; | |
411 | return 0; | |
412 | ||
413 | case ROSE_QBITINCL: | |
414 | rose->qbitincl = opt ? 1 : 0; | |
415 | return 0; | |
416 | ||
417 | default: | |
418 | return -ENOPROTOOPT; | |
419 | } | |
420 | } | |
421 | ||
422 | static int rose_getsockopt(struct socket *sock, int level, int optname, | |
423 | char __user *optval, int __user *optlen) | |
424 | { | |
425 | struct sock *sk = sock->sk; | |
426 | struct rose_sock *rose = rose_sk(sk); | |
427 | int val = 0; | |
428 | int len; | |
429 | ||
430 | if (level != SOL_ROSE) | |
431 | return -ENOPROTOOPT; | |
432 | ||
433 | if (get_user(len, optlen)) | |
434 | return -EFAULT; | |
435 | ||
436 | if (len < 0) | |
437 | return -EINVAL; | |
438 | ||
439 | switch (optname) { | |
440 | case ROSE_DEFER: | |
441 | val = rose->defer; | |
442 | break; | |
443 | ||
444 | case ROSE_T1: | |
445 | val = rose->t1 / HZ; | |
446 | break; | |
447 | ||
448 | case ROSE_T2: | |
449 | val = rose->t2 / HZ; | |
450 | break; | |
451 | ||
452 | case ROSE_T3: | |
453 | val = rose->t3 / HZ; | |
454 | break; | |
455 | ||
456 | case ROSE_HOLDBACK: | |
457 | val = rose->hb / HZ; | |
458 | break; | |
459 | ||
460 | case ROSE_IDLE: | |
461 | val = rose->idle / (60 * HZ); | |
462 | break; | |
463 | ||
464 | case ROSE_QBITINCL: | |
465 | val = rose->qbitincl; | |
466 | break; | |
467 | ||
468 | default: | |
469 | return -ENOPROTOOPT; | |
470 | } | |
471 | ||
472 | len = min_t(unsigned int, len, sizeof(int)); | |
473 | ||
474 | if (put_user(len, optlen)) | |
475 | return -EFAULT; | |
476 | ||
477 | return copy_to_user(optval, &val, len) ? -EFAULT : 0; | |
478 | } | |
479 | ||
480 | static int rose_listen(struct socket *sock, int backlog) | |
481 | { | |
482 | struct sock *sk = sock->sk; | |
483 | ||
484 | if (sk->sk_state != TCP_LISTEN) { | |
485 | struct rose_sock *rose = rose_sk(sk); | |
486 | ||
487 | rose->dest_ndigis = 0; | |
488 | memset(&rose->dest_addr, 0, ROSE_ADDR_LEN); | |
489 | memset(&rose->dest_call, 0, AX25_ADDR_LEN); | |
490 | memset(rose->dest_digis, 0, AX25_ADDR_LEN * ROSE_MAX_DIGIS); | |
491 | sk->sk_max_ack_backlog = backlog; | |
492 | sk->sk_state = TCP_LISTEN; | |
493 | return 0; | |
494 | } | |
495 | ||
496 | return -EOPNOTSUPP; | |
497 | } | |
498 | ||
499 | static struct proto rose_proto = { | |
500 | .name = "ROSE", | |
501 | .owner = THIS_MODULE, | |
502 | .obj_size = sizeof(struct rose_sock), | |
503 | }; | |
504 | ||
1b8d7ae4 | 505 | static int rose_create(struct net *net, struct socket *sock, int protocol) |
1da177e4 LT |
506 | { |
507 | struct sock *sk; | |
508 | struct rose_sock *rose; | |
509 | ||
1b8d7ae4 EB |
510 | if (net != &init_net) |
511 | return -EAFNOSUPPORT; | |
512 | ||
1da177e4 LT |
513 | if (sock->type != SOCK_SEQPACKET || protocol != 0) |
514 | return -ESOCKTNOSUPPORT; | |
515 | ||
6257ff21 PE |
516 | sk = sk_alloc(net, PF_ROSE, GFP_ATOMIC, &rose_proto); |
517 | if (sk == NULL) | |
1da177e4 LT |
518 | return -ENOMEM; |
519 | ||
520 | rose = rose_sk(sk); | |
521 | ||
522 | sock_init_data(sock, sk); | |
523 | ||
524 | skb_queue_head_init(&rose->ack_queue); | |
525 | #ifdef M_BIT | |
526 | skb_queue_head_init(&rose->frag_queue); | |
527 | rose->fraglen = 0; | |
528 | #endif | |
529 | ||
530 | sock->ops = &rose_proto_ops; | |
531 | sk->sk_protocol = protocol; | |
532 | ||
533 | init_timer(&rose->timer); | |
534 | init_timer(&rose->idletimer); | |
535 | ||
82e84249 RB |
536 | rose->t1 = msecs_to_jiffies(sysctl_rose_call_request_timeout); |
537 | rose->t2 = msecs_to_jiffies(sysctl_rose_reset_request_timeout); | |
538 | rose->t3 = msecs_to_jiffies(sysctl_rose_clear_request_timeout); | |
539 | rose->hb = msecs_to_jiffies(sysctl_rose_ack_hold_back_timeout); | |
540 | rose->idle = msecs_to_jiffies(sysctl_rose_no_activity_timeout); | |
1da177e4 LT |
541 | |
542 | rose->state = ROSE_STATE_0; | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
547 | static struct sock *rose_make_new(struct sock *osk) | |
548 | { | |
549 | struct sock *sk; | |
550 | struct rose_sock *rose, *orose; | |
551 | ||
552 | if (osk->sk_type != SOCK_SEQPACKET) | |
553 | return NULL; | |
554 | ||
6257ff21 PE |
555 | sk = sk_alloc(osk->sk_net, PF_ROSE, GFP_ATOMIC, &rose_proto); |
556 | if (sk == NULL) | |
1da177e4 LT |
557 | return NULL; |
558 | ||
559 | rose = rose_sk(sk); | |
560 | ||
561 | sock_init_data(NULL, sk); | |
562 | ||
563 | skb_queue_head_init(&rose->ack_queue); | |
564 | #ifdef M_BIT | |
565 | skb_queue_head_init(&rose->frag_queue); | |
566 | rose->fraglen = 0; | |
567 | #endif | |
568 | ||
569 | sk->sk_type = osk->sk_type; | |
570 | sk->sk_socket = osk->sk_socket; | |
571 | sk->sk_priority = osk->sk_priority; | |
572 | sk->sk_protocol = osk->sk_protocol; | |
573 | sk->sk_rcvbuf = osk->sk_rcvbuf; | |
574 | sk->sk_sndbuf = osk->sk_sndbuf; | |
575 | sk->sk_state = TCP_ESTABLISHED; | |
576 | sk->sk_sleep = osk->sk_sleep; | |
53b924b3 | 577 | sock_copy_flags(sk, osk); |
1da177e4 LT |
578 | |
579 | init_timer(&rose->timer); | |
580 | init_timer(&rose->idletimer); | |
581 | ||
582 | orose = rose_sk(osk); | |
583 | rose->t1 = orose->t1; | |
584 | rose->t2 = orose->t2; | |
585 | rose->t3 = orose->t3; | |
586 | rose->hb = orose->hb; | |
587 | rose->idle = orose->idle; | |
588 | rose->defer = orose->defer; | |
589 | rose->device = orose->device; | |
590 | rose->qbitincl = orose->qbitincl; | |
591 | ||
592 | return sk; | |
593 | } | |
594 | ||
595 | static int rose_release(struct socket *sock) | |
596 | { | |
597 | struct sock *sk = sock->sk; | |
598 | struct rose_sock *rose; | |
599 | ||
600 | if (sk == NULL) return 0; | |
601 | ||
602 | rose = rose_sk(sk); | |
603 | ||
604 | switch (rose->state) { | |
605 | case ROSE_STATE_0: | |
606 | rose_disconnect(sk, 0, -1, -1); | |
607 | rose_destroy_socket(sk); | |
608 | break; | |
609 | ||
610 | case ROSE_STATE_2: | |
611 | rose->neighbour->use--; | |
612 | rose_disconnect(sk, 0, -1, -1); | |
613 | rose_destroy_socket(sk); | |
614 | break; | |
615 | ||
616 | case ROSE_STATE_1: | |
617 | case ROSE_STATE_3: | |
618 | case ROSE_STATE_4: | |
619 | case ROSE_STATE_5: | |
620 | rose_clear_queues(sk); | |
621 | rose_stop_idletimer(sk); | |
622 | rose_write_internal(sk, ROSE_CLEAR_REQUEST); | |
623 | rose_start_t3timer(sk); | |
624 | rose->state = ROSE_STATE_2; | |
625 | sk->sk_state = TCP_CLOSE; | |
626 | sk->sk_shutdown |= SEND_SHUTDOWN; | |
627 | sk->sk_state_change(sk); | |
628 | sock_set_flag(sk, SOCK_DEAD); | |
629 | sock_set_flag(sk, SOCK_DESTROY); | |
630 | break; | |
631 | ||
632 | default: | |
633 | break; | |
634 | } | |
635 | ||
636 | sock->sk = NULL; | |
637 | ||
638 | return 0; | |
639 | } | |
640 | ||
641 | static int rose_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) | |
642 | { | |
643 | struct sock *sk = sock->sk; | |
644 | struct rose_sock *rose = rose_sk(sk); | |
645 | struct sockaddr_rose *addr = (struct sockaddr_rose *)uaddr; | |
646 | struct net_device *dev; | |
01d7dd0e RB |
647 | ax25_address *source; |
648 | ax25_uid_assoc *user; | |
1da177e4 LT |
649 | int n; |
650 | ||
651 | if (!sock_flag(sk, SOCK_ZAPPED)) | |
652 | return -EINVAL; | |
653 | ||
654 | if (addr_len != sizeof(struct sockaddr_rose) && addr_len != sizeof(struct full_sockaddr_rose)) | |
655 | return -EINVAL; | |
656 | ||
657 | if (addr->srose_family != AF_ROSE) | |
658 | return -EINVAL; | |
659 | ||
660 | if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1) | |
661 | return -EINVAL; | |
662 | ||
663 | if (addr->srose_ndigis > ROSE_MAX_DIGIS) | |
664 | return -EINVAL; | |
665 | ||
666 | if ((dev = rose_dev_get(&addr->srose_addr)) == NULL) { | |
667 | SOCK_DEBUG(sk, "ROSE: bind failed: invalid address\n"); | |
668 | return -EADDRNOTAVAIL; | |
669 | } | |
670 | ||
671 | source = &addr->srose_call; | |
672 | ||
01d7dd0e RB |
673 | user = ax25_findbyuid(current->euid); |
674 | if (user) { | |
675 | rose->source_call = user->call; | |
676 | ax25_uid_put(user); | |
677 | } else { | |
1da177e4 LT |
678 | if (ax25_uid_policy && !capable(CAP_NET_BIND_SERVICE)) |
679 | return -EACCES; | |
01d7dd0e | 680 | rose->source_call = *source; |
1da177e4 LT |
681 | } |
682 | ||
683 | rose->source_addr = addr->srose_addr; | |
1da177e4 LT |
684 | rose->device = dev; |
685 | rose->source_ndigis = addr->srose_ndigis; | |
686 | ||
687 | if (addr_len == sizeof(struct full_sockaddr_rose)) { | |
688 | struct full_sockaddr_rose *full_addr = (struct full_sockaddr_rose *)uaddr; | |
689 | for (n = 0 ; n < addr->srose_ndigis ; n++) | |
690 | rose->source_digis[n] = full_addr->srose_digis[n]; | |
691 | } else { | |
692 | if (rose->source_ndigis == 1) { | |
693 | rose->source_digis[0] = addr->srose_digi; | |
694 | } | |
695 | } | |
696 | ||
697 | rose_insert_socket(sk); | |
698 | ||
699 | sock_reset_flag(sk, SOCK_ZAPPED); | |
700 | SOCK_DEBUG(sk, "ROSE: socket is bound\n"); | |
701 | return 0; | |
702 | } | |
703 | ||
704 | static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_len, int flags) | |
705 | { | |
706 | struct sock *sk = sock->sk; | |
707 | struct rose_sock *rose = rose_sk(sk); | |
708 | struct sockaddr_rose *addr = (struct sockaddr_rose *)uaddr; | |
709 | unsigned char cause, diagnostic; | |
1da177e4 | 710 | struct net_device *dev; |
01d7dd0e | 711 | ax25_uid_assoc *user; |
2536b94a | 712 | int n, err = 0; |
1da177e4 LT |
713 | |
714 | if (addr_len != sizeof(struct sockaddr_rose) && addr_len != sizeof(struct full_sockaddr_rose)) | |
715 | return -EINVAL; | |
716 | ||
717 | if (addr->srose_family != AF_ROSE) | |
718 | return -EINVAL; | |
719 | ||
720 | if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1) | |
721 | return -EINVAL; | |
722 | ||
723 | if (addr->srose_ndigis > ROSE_MAX_DIGIS) | |
724 | return -EINVAL; | |
725 | ||
726 | /* Source + Destination digis should not exceed ROSE_MAX_DIGIS */ | |
727 | if ((rose->source_ndigis + addr->srose_ndigis) > ROSE_MAX_DIGIS) | |
728 | return -EINVAL; | |
729 | ||
2536b94a RB |
730 | lock_sock(sk); |
731 | ||
732 | if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) { | |
733 | /* Connect completed during a ERESTARTSYS event */ | |
734 | sock->state = SS_CONNECTED; | |
735 | goto out_release; | |
736 | } | |
737 | ||
738 | if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) { | |
739 | sock->state = SS_UNCONNECTED; | |
740 | err = -ECONNREFUSED; | |
741 | goto out_release; | |
742 | } | |
743 | ||
744 | if (sk->sk_state == TCP_ESTABLISHED) { | |
745 | /* No reconnect on a seqpacket socket */ | |
746 | err = -EISCONN; | |
747 | goto out_release; | |
748 | } | |
749 | ||
750 | sk->sk_state = TCP_CLOSE; | |
751 | sock->state = SS_UNCONNECTED; | |
752 | ||
1da177e4 LT |
753 | rose->neighbour = rose_get_neigh(&addr->srose_addr, &cause, |
754 | &diagnostic); | |
755 | if (!rose->neighbour) | |
756 | return -ENETUNREACH; | |
757 | ||
758 | rose->lci = rose_new_lci(rose->neighbour); | |
2536b94a RB |
759 | if (!rose->lci) { |
760 | err = -ENETUNREACH; | |
761 | goto out_release; | |
762 | } | |
1da177e4 LT |
763 | |
764 | if (sock_flag(sk, SOCK_ZAPPED)) { /* Must bind first - autobinding in this may or may not work */ | |
765 | sock_reset_flag(sk, SOCK_ZAPPED); | |
766 | ||
2536b94a RB |
767 | if ((dev = rose_dev_first()) == NULL) { |
768 | err = -ENETUNREACH; | |
769 | goto out_release; | |
770 | } | |
1da177e4 | 771 | |
01d7dd0e | 772 | user = ax25_findbyuid(current->euid); |
2536b94a RB |
773 | if (!user) { |
774 | err = -EINVAL; | |
775 | goto out_release; | |
776 | } | |
1da177e4 LT |
777 | |
778 | memcpy(&rose->source_addr, dev->dev_addr, ROSE_ADDR_LEN); | |
01d7dd0e | 779 | rose->source_call = user->call; |
1da177e4 | 780 | rose->device = dev; |
01d7dd0e | 781 | ax25_uid_put(user); |
1da177e4 LT |
782 | |
783 | rose_insert_socket(sk); /* Finish the bind */ | |
784 | } | |
d85838c5 | 785 | rose_try_next_neigh: |
1da177e4 LT |
786 | rose->dest_addr = addr->srose_addr; |
787 | rose->dest_call = addr->srose_call; | |
788 | rose->rand = ((long)rose & 0xFFFF) + rose->lci; | |
789 | rose->dest_ndigis = addr->srose_ndigis; | |
790 | ||
791 | if (addr_len == sizeof(struct full_sockaddr_rose)) { | |
792 | struct full_sockaddr_rose *full_addr = (struct full_sockaddr_rose *)uaddr; | |
793 | for (n = 0 ; n < addr->srose_ndigis ; n++) | |
794 | rose->dest_digis[n] = full_addr->srose_digis[n]; | |
795 | } else { | |
796 | if (rose->dest_ndigis == 1) { | |
797 | rose->dest_digis[0] = addr->srose_digi; | |
798 | } | |
799 | } | |
800 | ||
801 | /* Move to connecting socket, start sending Connect Requests */ | |
802 | sock->state = SS_CONNECTING; | |
803 | sk->sk_state = TCP_SYN_SENT; | |
804 | ||
805 | rose->state = ROSE_STATE_1; | |
806 | ||
807 | rose->neighbour->use++; | |
808 | ||
809 | rose_write_internal(sk, ROSE_CALL_REQUEST); | |
810 | rose_start_heartbeat(sk); | |
811 | rose_start_t1timer(sk); | |
812 | ||
813 | /* Now the loop */ | |
2536b94a RB |
814 | if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) { |
815 | err = -EINPROGRESS; | |
816 | goto out_release; | |
817 | } | |
1da177e4 LT |
818 | |
819 | /* | |
820 | * A Connect Ack with Choke or timeout or failed routing will go to | |
821 | * closed. | |
822 | */ | |
823 | if (sk->sk_state == TCP_SYN_SENT) { | |
75606dc6 | 824 | DEFINE_WAIT(wait); |
1da177e4 | 825 | |
1da177e4 | 826 | for (;;) { |
75606dc6 | 827 | prepare_to_wait(sk->sk_sleep, &wait, |
6140efb5 | 828 | TASK_INTERRUPTIBLE); |
1da177e4 LT |
829 | if (sk->sk_state != TCP_SYN_SENT) |
830 | break; | |
75606dc6 RB |
831 | if (!signal_pending(current)) { |
832 | release_sock(sk); | |
1da177e4 | 833 | schedule(); |
2536b94a | 834 | lock_sock(sk); |
1da177e4 LT |
835 | continue; |
836 | } | |
75606dc6 RB |
837 | err = -ERESTARTSYS; |
838 | break; | |
1da177e4 | 839 | } |
75606dc6 RB |
840 | finish_wait(sk->sk_sleep, &wait); |
841 | ||
842 | if (err) | |
843 | goto out_release; | |
1da177e4 LT |
844 | } |
845 | ||
846 | if (sk->sk_state != TCP_ESTABLISHED) { | |
d85838c5 RB |
847 | /* Try next neighbour */ |
848 | rose->neighbour = rose_get_neigh(&addr->srose_addr, &cause, &diagnostic); | |
849 | if (rose->neighbour) | |
850 | goto rose_try_next_neigh; | |
2536b94a RB |
851 | |
852 | /* No more neighbours */ | |
1da177e4 | 853 | sock->state = SS_UNCONNECTED; |
2536b94a RB |
854 | err = sock_error(sk); /* Always set at this point */ |
855 | goto out_release; | |
1da177e4 LT |
856 | } |
857 | ||
858 | sock->state = SS_CONNECTED; | |
859 | ||
2536b94a RB |
860 | out_release: |
861 | release_sock(sk); | |
862 | ||
863 | return err; | |
1da177e4 LT |
864 | } |
865 | ||
866 | static int rose_accept(struct socket *sock, struct socket *newsock, int flags) | |
867 | { | |
1da177e4 LT |
868 | struct sk_buff *skb; |
869 | struct sock *newsk; | |
75606dc6 | 870 | DEFINE_WAIT(wait); |
1da177e4 LT |
871 | struct sock *sk; |
872 | int err = 0; | |
873 | ||
874 | if ((sk = sock->sk) == NULL) | |
875 | return -EINVAL; | |
876 | ||
877 | lock_sock(sk); | |
878 | if (sk->sk_type != SOCK_SEQPACKET) { | |
879 | err = -EOPNOTSUPP; | |
75606dc6 | 880 | goto out_release; |
1da177e4 LT |
881 | } |
882 | ||
883 | if (sk->sk_state != TCP_LISTEN) { | |
884 | err = -EINVAL; | |
75606dc6 | 885 | goto out_release; |
1da177e4 LT |
886 | } |
887 | ||
888 | /* | |
889 | * The write queue this time is holding sockets ready to use | |
890 | * hooked into the SABM we saved | |
891 | */ | |
1da177e4 | 892 | for (;;) { |
75606dc6 RB |
893 | prepare_to_wait(sk->sk_sleep, &wait, TASK_INTERRUPTIBLE); |
894 | ||
1da177e4 LT |
895 | skb = skb_dequeue(&sk->sk_receive_queue); |
896 | if (skb) | |
897 | break; | |
898 | ||
1da177e4 | 899 | if (flags & O_NONBLOCK) { |
75606dc6 RB |
900 | err = -EWOULDBLOCK; |
901 | break; | |
1da177e4 | 902 | } |
75606dc6 RB |
903 | if (!signal_pending(current)) { |
904 | release_sock(sk); | |
1da177e4 LT |
905 | schedule(); |
906 | lock_sock(sk); | |
907 | continue; | |
908 | } | |
75606dc6 RB |
909 | err = -ERESTARTSYS; |
910 | break; | |
1da177e4 | 911 | } |
75606dc6 RB |
912 | finish_wait(sk->sk_sleep, &wait); |
913 | if (err) | |
914 | goto out_release; | |
1da177e4 LT |
915 | |
916 | newsk = skb->sk; | |
917 | newsk->sk_socket = newsock; | |
918 | newsk->sk_sleep = &newsock->wait; | |
919 | ||
920 | /* Now attach up the new socket */ | |
921 | skb->sk = NULL; | |
922 | kfree_skb(skb); | |
923 | sk->sk_ack_backlog--; | |
924 | newsock->sk = newsk; | |
925 | ||
75606dc6 | 926 | out_release: |
1da177e4 LT |
927 | release_sock(sk); |
928 | ||
929 | return err; | |
930 | } | |
931 | ||
932 | static int rose_getname(struct socket *sock, struct sockaddr *uaddr, | |
933 | int *uaddr_len, int peer) | |
934 | { | |
935 | struct full_sockaddr_rose *srose = (struct full_sockaddr_rose *)uaddr; | |
936 | struct sock *sk = sock->sk; | |
937 | struct rose_sock *rose = rose_sk(sk); | |
938 | int n; | |
939 | ||
940 | if (peer != 0) { | |
941 | if (sk->sk_state != TCP_ESTABLISHED) | |
942 | return -ENOTCONN; | |
943 | srose->srose_family = AF_ROSE; | |
944 | srose->srose_addr = rose->dest_addr; | |
945 | srose->srose_call = rose->dest_call; | |
946 | srose->srose_ndigis = rose->dest_ndigis; | |
947 | for (n = 0; n < rose->dest_ndigis; n++) | |
948 | srose->srose_digis[n] = rose->dest_digis[n]; | |
949 | } else { | |
950 | srose->srose_family = AF_ROSE; | |
951 | srose->srose_addr = rose->source_addr; | |
952 | srose->srose_call = rose->source_call; | |
953 | srose->srose_ndigis = rose->source_ndigis; | |
954 | for (n = 0; n < rose->source_ndigis; n++) | |
955 | srose->srose_digis[n] = rose->source_digis[n]; | |
956 | } | |
957 | ||
958 | *uaddr_len = sizeof(struct full_sockaddr_rose); | |
959 | return 0; | |
960 | } | |
961 | ||
962 | int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct rose_neigh *neigh, unsigned int lci) | |
963 | { | |
964 | struct sock *sk; | |
965 | struct sock *make; | |
966 | struct rose_sock *make_rose; | |
967 | struct rose_facilities_struct facilities; | |
968 | int n, len; | |
969 | ||
970 | skb->sk = NULL; /* Initially we don't know who it's for */ | |
971 | ||
972 | /* | |
973 | * skb->data points to the rose frame start | |
974 | */ | |
975 | memset(&facilities, 0x00, sizeof(struct rose_facilities_struct)); | |
976 | ||
977 | len = (((skb->data[3] >> 4) & 0x0F) + 1) / 2; | |
978 | len += (((skb->data[3] >> 0) & 0x0F) + 1) / 2; | |
979 | if (!rose_parse_facilities(skb->data + len + 4, &facilities)) { | |
980 | rose_transmit_clear_request(neigh, lci, ROSE_INVALID_FACILITY, 76); | |
981 | return 0; | |
982 | } | |
983 | ||
984 | sk = rose_find_listener(&facilities.source_addr, &facilities.source_call); | |
985 | ||
986 | /* | |
987 | * We can't accept the Call Request. | |
988 | */ | |
989 | if (sk == NULL || sk_acceptq_is_full(sk) || | |
990 | (make = rose_make_new(sk)) == NULL) { | |
991 | rose_transmit_clear_request(neigh, lci, ROSE_NETWORK_CONGESTION, 120); | |
992 | return 0; | |
993 | } | |
994 | ||
995 | skb->sk = make; | |
996 | make->sk_state = TCP_ESTABLISHED; | |
997 | make_rose = rose_sk(make); | |
998 | ||
999 | make_rose->lci = lci; | |
1000 | make_rose->dest_addr = facilities.dest_addr; | |
1001 | make_rose->dest_call = facilities.dest_call; | |
1002 | make_rose->dest_ndigis = facilities.dest_ndigis; | |
1003 | for (n = 0 ; n < facilities.dest_ndigis ; n++) | |
1004 | make_rose->dest_digis[n] = facilities.dest_digis[n]; | |
1005 | make_rose->source_addr = facilities.source_addr; | |
1006 | make_rose->source_call = facilities.source_call; | |
1007 | make_rose->source_ndigis = facilities.source_ndigis; | |
1008 | for (n = 0 ; n < facilities.source_ndigis ; n++) | |
1009 | make_rose->source_digis[n]= facilities.source_digis[n]; | |
1010 | make_rose->neighbour = neigh; | |
1011 | make_rose->device = dev; | |
1012 | make_rose->facilities = facilities; | |
1013 | ||
1014 | make_rose->neighbour->use++; | |
1015 | ||
1016 | if (rose_sk(sk)->defer) { | |
1017 | make_rose->state = ROSE_STATE_5; | |
1018 | } else { | |
1019 | rose_write_internal(make, ROSE_CALL_ACCEPTED); | |
1020 | make_rose->state = ROSE_STATE_3; | |
1021 | rose_start_idletimer(make); | |
1022 | } | |
1023 | ||
1024 | make_rose->condition = 0x00; | |
1025 | make_rose->vs = 0; | |
1026 | make_rose->va = 0; | |
1027 | make_rose->vr = 0; | |
1028 | make_rose->vl = 0; | |
1029 | sk->sk_ack_backlog++; | |
1030 | ||
1031 | rose_insert_socket(make); | |
1032 | ||
1033 | skb_queue_head(&sk->sk_receive_queue, skb); | |
1034 | ||
1035 | rose_start_heartbeat(make); | |
1036 | ||
1037 | if (!sock_flag(sk, SOCK_DEAD)) | |
1038 | sk->sk_data_ready(sk, skb->len); | |
1039 | ||
1040 | return 1; | |
1041 | } | |
1042 | ||
1043 | static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, | |
1044 | struct msghdr *msg, size_t len) | |
1045 | { | |
1046 | struct sock *sk = sock->sk; | |
1047 | struct rose_sock *rose = rose_sk(sk); | |
1048 | struct sockaddr_rose *usrose = (struct sockaddr_rose *)msg->msg_name; | |
1049 | int err; | |
1050 | struct full_sockaddr_rose srose; | |
1051 | struct sk_buff *skb; | |
1052 | unsigned char *asmptr; | |
1053 | int n, size, qbit = 0; | |
1054 | ||
1055 | if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT)) | |
1056 | return -EINVAL; | |
1057 | ||
1058 | if (sock_flag(sk, SOCK_ZAPPED)) | |
1059 | return -EADDRNOTAVAIL; | |
1060 | ||
1061 | if (sk->sk_shutdown & SEND_SHUTDOWN) { | |
1062 | send_sig(SIGPIPE, current, 0); | |
1063 | return -EPIPE; | |
1064 | } | |
1065 | ||
1066 | if (rose->neighbour == NULL || rose->device == NULL) | |
1067 | return -ENETUNREACH; | |
1068 | ||
1069 | if (usrose != NULL) { | |
1070 | if (msg->msg_namelen != sizeof(struct sockaddr_rose) && msg->msg_namelen != sizeof(struct full_sockaddr_rose)) | |
1071 | return -EINVAL; | |
1072 | memset(&srose, 0, sizeof(struct full_sockaddr_rose)); | |
1073 | memcpy(&srose, usrose, msg->msg_namelen); | |
1074 | if (rosecmp(&rose->dest_addr, &srose.srose_addr) != 0 || | |
1075 | ax25cmp(&rose->dest_call, &srose.srose_call) != 0) | |
1076 | return -EISCONN; | |
1077 | if (srose.srose_ndigis != rose->dest_ndigis) | |
1078 | return -EISCONN; | |
1079 | if (srose.srose_ndigis == rose->dest_ndigis) { | |
1080 | for (n = 0 ; n < srose.srose_ndigis ; n++) | |
1081 | if (ax25cmp(&rose->dest_digis[n], | |
1082 | &srose.srose_digis[n])) | |
1083 | return -EISCONN; | |
1084 | } | |
1085 | if (srose.srose_family != AF_ROSE) | |
1086 | return -EINVAL; | |
1087 | } else { | |
1088 | if (sk->sk_state != TCP_ESTABLISHED) | |
1089 | return -ENOTCONN; | |
1090 | ||
1091 | srose.srose_family = AF_ROSE; | |
1092 | srose.srose_addr = rose->dest_addr; | |
1093 | srose.srose_call = rose->dest_call; | |
1094 | srose.srose_ndigis = rose->dest_ndigis; | |
1095 | for (n = 0 ; n < rose->dest_ndigis ; n++) | |
1096 | srose.srose_digis[n] = rose->dest_digis[n]; | |
1097 | } | |
1098 | ||
1099 | SOCK_DEBUG(sk, "ROSE: sendto: Addresses built.\n"); | |
1100 | ||
1101 | /* Build a packet */ | |
1102 | SOCK_DEBUG(sk, "ROSE: sendto: building packet.\n"); | |
1103 | size = len + AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN; | |
1104 | ||
1105 | if ((skb = sock_alloc_send_skb(sk, size, msg->msg_flags & MSG_DONTWAIT, &err)) == NULL) | |
1106 | return err; | |
1107 | ||
1108 | skb_reserve(skb, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN); | |
1109 | ||
1110 | /* | |
1111 | * Put the data on the end | |
1112 | */ | |
1113 | SOCK_DEBUG(sk, "ROSE: Appending user data\n"); | |
1114 | ||
eeeb0374 ACM |
1115 | skb_reset_transport_header(skb); |
1116 | skb_put(skb, len); | |
1da177e4 | 1117 | |
eeeb0374 | 1118 | err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len); |
1da177e4 LT |
1119 | if (err) { |
1120 | kfree_skb(skb); | |
1121 | return err; | |
1122 | } | |
1123 | ||
1124 | /* | |
1125 | * If the Q BIT Include socket option is in force, the first | |
1126 | * byte of the user data is the logical value of the Q Bit. | |
1127 | */ | |
1128 | if (rose->qbitincl) { | |
1129 | qbit = skb->data[0]; | |
1130 | skb_pull(skb, 1); | |
1131 | } | |
1132 | ||
1133 | /* | |
1134 | * Push down the ROSE header | |
1135 | */ | |
1136 | asmptr = skb_push(skb, ROSE_MIN_LEN); | |
1137 | ||
1138 | SOCK_DEBUG(sk, "ROSE: Building Network Header.\n"); | |
1139 | ||
1140 | /* Build a ROSE Network header */ | |
1141 | asmptr[0] = ((rose->lci >> 8) & 0x0F) | ROSE_GFI; | |
1142 | asmptr[1] = (rose->lci >> 0) & 0xFF; | |
1143 | asmptr[2] = ROSE_DATA; | |
1144 | ||
1145 | if (qbit) | |
1146 | asmptr[0] |= ROSE_Q_BIT; | |
1147 | ||
1148 | SOCK_DEBUG(sk, "ROSE: Built header.\n"); | |
1149 | ||
1150 | SOCK_DEBUG(sk, "ROSE: Transmitting buffer\n"); | |
1151 | ||
1152 | if (sk->sk_state != TCP_ESTABLISHED) { | |
1153 | kfree_skb(skb); | |
1154 | return -ENOTCONN; | |
1155 | } | |
1156 | ||
1157 | #ifdef M_BIT | |
1158 | #define ROSE_PACLEN (256-ROSE_MIN_LEN) | |
1159 | if (skb->len - ROSE_MIN_LEN > ROSE_PACLEN) { | |
1160 | unsigned char header[ROSE_MIN_LEN]; | |
1161 | struct sk_buff *skbn; | |
1162 | int frontlen; | |
1163 | int lg; | |
1164 | ||
1165 | /* Save a copy of the Header */ | |
d626f62b | 1166 | skb_copy_from_linear_data(skb, header, ROSE_MIN_LEN); |
1da177e4 LT |
1167 | skb_pull(skb, ROSE_MIN_LEN); |
1168 | ||
1169 | frontlen = skb_headroom(skb); | |
1170 | ||
1171 | while (skb->len > 0) { | |
1172 | if ((skbn = sock_alloc_send_skb(sk, frontlen + ROSE_PACLEN, 0, &err)) == NULL) { | |
1173 | kfree_skb(skb); | |
1174 | return err; | |
1175 | } | |
1176 | ||
1177 | skbn->sk = sk; | |
1178 | skbn->free = 1; | |
1179 | skbn->arp = 1; | |
1180 | ||
1181 | skb_reserve(skbn, frontlen); | |
1182 | ||
1183 | lg = (ROSE_PACLEN > skb->len) ? skb->len : ROSE_PACLEN; | |
1184 | ||
1185 | /* Copy the user data */ | |
d626f62b | 1186 | skb_copy_from_linear_data(skb, skb_put(skbn, lg), lg); |
1da177e4 LT |
1187 | skb_pull(skb, lg); |
1188 | ||
1189 | /* Duplicate the Header */ | |
1190 | skb_push(skbn, ROSE_MIN_LEN); | |
27d7ff46 | 1191 | skb_copy_to_linear_data(skbn, header, ROSE_MIN_LEN); |
1da177e4 LT |
1192 | |
1193 | if (skb->len > 0) | |
1194 | skbn->data[2] |= M_BIT; | |
1195 | ||
1196 | skb_queue_tail(&sk->sk_write_queue, skbn); /* Throw it on the queue */ | |
1197 | } | |
1198 | ||
1199 | skb->free = 1; | |
1200 | kfree_skb(skb); | |
1201 | } else { | |
1202 | skb_queue_tail(&sk->sk_write_queue, skb); /* Throw it on the queue */ | |
1203 | } | |
1204 | #else | |
1205 | skb_queue_tail(&sk->sk_write_queue, skb); /* Shove it onto the queue */ | |
1206 | #endif | |
1207 | ||
1208 | rose_kick(sk); | |
1209 | ||
1210 | return len; | |
1211 | } | |
1212 | ||
1213 | ||
1214 | static int rose_recvmsg(struct kiocb *iocb, struct socket *sock, | |
1215 | struct msghdr *msg, size_t size, int flags) | |
1216 | { | |
1217 | struct sock *sk = sock->sk; | |
1218 | struct rose_sock *rose = rose_sk(sk); | |
1219 | struct sockaddr_rose *srose = (struct sockaddr_rose *)msg->msg_name; | |
1220 | size_t copied; | |
1221 | unsigned char *asmptr; | |
1222 | struct sk_buff *skb; | |
1223 | int n, er, qbit; | |
1224 | ||
1225 | /* | |
1226 | * This works for seqpacket too. The receiver has ordered the queue for | |
1227 | * us! We do one quick check first though | |
1228 | */ | |
1229 | if (sk->sk_state != TCP_ESTABLISHED) | |
1230 | return -ENOTCONN; | |
1231 | ||
1232 | /* Now we can treat all alike */ | |
1233 | if ((skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT, flags & MSG_DONTWAIT, &er)) == NULL) | |
1234 | return er; | |
1235 | ||
1236 | qbit = (skb->data[0] & ROSE_Q_BIT) == ROSE_Q_BIT; | |
1237 | ||
1238 | skb_pull(skb, ROSE_MIN_LEN); | |
1239 | ||
1240 | if (rose->qbitincl) { | |
1241 | asmptr = skb_push(skb, 1); | |
1242 | *asmptr = qbit; | |
1243 | } | |
1244 | ||
badff6d0 | 1245 | skb_reset_transport_header(skb); |
1da177e4 LT |
1246 | copied = skb->len; |
1247 | ||
1248 | if (copied > size) { | |
1249 | copied = size; | |
1250 | msg->msg_flags |= MSG_TRUNC; | |
1251 | } | |
1252 | ||
1253 | skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); | |
1254 | ||
1255 | if (srose != NULL) { | |
1256 | srose->srose_family = AF_ROSE; | |
1257 | srose->srose_addr = rose->dest_addr; | |
1258 | srose->srose_call = rose->dest_call; | |
1259 | srose->srose_ndigis = rose->dest_ndigis; | |
1260 | if (msg->msg_namelen >= sizeof(struct full_sockaddr_rose)) { | |
1261 | struct full_sockaddr_rose *full_srose = (struct full_sockaddr_rose *)msg->msg_name; | |
1262 | for (n = 0 ; n < rose->dest_ndigis ; n++) | |
1263 | full_srose->srose_digis[n] = rose->dest_digis[n]; | |
1264 | msg->msg_namelen = sizeof(struct full_sockaddr_rose); | |
1265 | } else { | |
1266 | if (rose->dest_ndigis >= 1) { | |
1267 | srose->srose_ndigis = 1; | |
1268 | srose->srose_digi = rose->dest_digis[0]; | |
1269 | } | |
1270 | msg->msg_namelen = sizeof(struct sockaddr_rose); | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | skb_free_datagram(sk, skb); | |
1275 | ||
1276 | return copied; | |
1277 | } | |
1278 | ||
1279 | ||
1280 | static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) | |
1281 | { | |
1282 | struct sock *sk = sock->sk; | |
1283 | struct rose_sock *rose = rose_sk(sk); | |
1284 | void __user *argp = (void __user *)arg; | |
1285 | ||
1286 | switch (cmd) { | |
1287 | case TIOCOUTQ: { | |
1288 | long amount; | |
1289 | amount = sk->sk_sndbuf - atomic_read(&sk->sk_wmem_alloc); | |
1290 | if (amount < 0) | |
1291 | amount = 0; | |
20b7d10a | 1292 | return put_user(amount, (unsigned int __user *) argp); |
1da177e4 LT |
1293 | } |
1294 | ||
1295 | case TIOCINQ: { | |
1296 | struct sk_buff *skb; | |
1297 | long amount = 0L; | |
1298 | /* These two are safe on a single CPU system as only user tasks fiddle here */ | |
1299 | if ((skb = skb_peek(&sk->sk_receive_queue)) != NULL) | |
1300 | amount = skb->len; | |
20b7d10a | 1301 | return put_user(amount, (unsigned int __user *) argp); |
1da177e4 LT |
1302 | } |
1303 | ||
1304 | case SIOCGSTAMP: | |
20b7d10a | 1305 | return sock_get_timestamp(sk, (struct timeval __user *) argp); |
1da177e4 | 1306 | |
ae40eb1e ED |
1307 | case SIOCGSTAMPNS: |
1308 | return sock_get_timestampns(sk, (struct timespec __user *) argp); | |
1309 | ||
1da177e4 LT |
1310 | case SIOCGIFADDR: |
1311 | case SIOCSIFADDR: | |
1312 | case SIOCGIFDSTADDR: | |
1313 | case SIOCSIFDSTADDR: | |
1314 | case SIOCGIFBRDADDR: | |
1315 | case SIOCSIFBRDADDR: | |
1316 | case SIOCGIFNETMASK: | |
1317 | case SIOCSIFNETMASK: | |
1318 | case SIOCGIFMETRIC: | |
1319 | case SIOCSIFMETRIC: | |
1320 | return -EINVAL; | |
1321 | ||
1322 | case SIOCADDRT: | |
1323 | case SIOCDELRT: | |
1324 | case SIOCRSCLRRT: | |
1325 | if (!capable(CAP_NET_ADMIN)) | |
1326 | return -EPERM; | |
1327 | return rose_rt_ioctl(cmd, argp); | |
1328 | ||
1329 | case SIOCRSGCAUSE: { | |
1330 | struct rose_cause_struct rose_cause; | |
1331 | rose_cause.cause = rose->cause; | |
1332 | rose_cause.diagnostic = rose->diagnostic; | |
1333 | return copy_to_user(argp, &rose_cause, sizeof(struct rose_cause_struct)) ? -EFAULT : 0; | |
1334 | } | |
1335 | ||
1336 | case SIOCRSSCAUSE: { | |
1337 | struct rose_cause_struct rose_cause; | |
1338 | if (copy_from_user(&rose_cause, argp, sizeof(struct rose_cause_struct))) | |
1339 | return -EFAULT; | |
1340 | rose->cause = rose_cause.cause; | |
1341 | rose->diagnostic = rose_cause.diagnostic; | |
1342 | return 0; | |
1343 | } | |
1344 | ||
1345 | case SIOCRSSL2CALL: | |
1346 | if (!capable(CAP_NET_ADMIN)) return -EPERM; | |
1347 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
1348 | ax25_listen_release(&rose_callsign, NULL); | |
1349 | if (copy_from_user(&rose_callsign, argp, sizeof(ax25_address))) | |
1350 | return -EFAULT; | |
1351 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
81dcd169 RB |
1352 | return ax25_listen_register(&rose_callsign, NULL); |
1353 | ||
1da177e4 LT |
1354 | return 0; |
1355 | ||
1356 | case SIOCRSGL2CALL: | |
1357 | return copy_to_user(argp, &rose_callsign, sizeof(ax25_address)) ? -EFAULT : 0; | |
1358 | ||
1359 | case SIOCRSACCEPT: | |
1360 | if (rose->state == ROSE_STATE_5) { | |
1361 | rose_write_internal(sk, ROSE_CALL_ACCEPTED); | |
1362 | rose_start_idletimer(sk); | |
1363 | rose->condition = 0x00; | |
1364 | rose->vs = 0; | |
1365 | rose->va = 0; | |
1366 | rose->vr = 0; | |
1367 | rose->vl = 0; | |
1368 | rose->state = ROSE_STATE_3; | |
1369 | } | |
1370 | return 0; | |
1371 | ||
1372 | default: | |
b5e5fa5e | 1373 | return -ENOIOCTLCMD; |
1da177e4 LT |
1374 | } |
1375 | ||
1376 | return 0; | |
1377 | } | |
1378 | ||
1379 | #ifdef CONFIG_PROC_FS | |
1380 | static void *rose_info_start(struct seq_file *seq, loff_t *pos) | |
1381 | { | |
1382 | int i; | |
1383 | struct sock *s; | |
1384 | struct hlist_node *node; | |
1385 | ||
1386 | spin_lock_bh(&rose_list_lock); | |
1387 | if (*pos == 0) | |
1388 | return SEQ_START_TOKEN; | |
3dcf7c5e | 1389 | |
1da177e4 LT |
1390 | i = 1; |
1391 | sk_for_each(s, node, &rose_list) { | |
1392 | if (i == *pos) | |
1393 | return s; | |
1394 | ++i; | |
1395 | } | |
1396 | return NULL; | |
1397 | } | |
1398 | ||
1399 | static void *rose_info_next(struct seq_file *seq, void *v, loff_t *pos) | |
1400 | { | |
1401 | ++*pos; | |
1402 | ||
3dcf7c5e | 1403 | return (v == SEQ_START_TOKEN) ? sk_head(&rose_list) |
1da177e4 LT |
1404 | : sk_next((struct sock *)v); |
1405 | } | |
3dcf7c5e | 1406 | |
1da177e4 LT |
1407 | static void rose_info_stop(struct seq_file *seq, void *v) |
1408 | { | |
1409 | spin_unlock_bh(&rose_list_lock); | |
1410 | } | |
1411 | ||
1412 | static int rose_info_show(struct seq_file *seq, void *v) | |
1413 | { | |
f75268cd RB |
1414 | char buf[11]; |
1415 | ||
1da177e4 | 1416 | if (v == SEQ_START_TOKEN) |
3dcf7c5e | 1417 | seq_puts(seq, |
1da177e4 LT |
1418 | "dest_addr dest_call src_addr src_call dev lci neigh st vs vr va t t1 t2 t3 hb idle Snd-Q Rcv-Q inode\n"); |
1419 | ||
1420 | else { | |
1421 | struct sock *s = v; | |
1422 | struct rose_sock *rose = rose_sk(s); | |
1423 | const char *devname, *callsign; | |
1424 | const struct net_device *dev = rose->device; | |
1425 | ||
1426 | if (!dev) | |
1427 | devname = "???"; | |
1428 | else | |
1429 | devname = dev->name; | |
3dcf7c5e | 1430 | |
1da177e4 LT |
1431 | seq_printf(seq, "%-10s %-9s ", |
1432 | rose2asc(&rose->dest_addr), | |
f75268cd | 1433 | ax2asc(buf, &rose->dest_call)); |
1da177e4 LT |
1434 | |
1435 | if (ax25cmp(&rose->source_call, &null_ax25_address) == 0) | |
1436 | callsign = "??????-?"; | |
1437 | else | |
f75268cd | 1438 | callsign = ax2asc(buf, &rose->source_call); |
1da177e4 LT |
1439 | |
1440 | seq_printf(seq, | |
1441 | "%-10s %-9s %-5s %3.3X %05d %d %d %d %d %3lu %3lu %3lu %3lu %3lu %3lu/%03lu %5d %5d %ld\n", | |
1442 | rose2asc(&rose->source_addr), | |
1443 | callsign, | |
1444 | devname, | |
1445 | rose->lci & 0x0FFF, | |
1446 | (rose->neighbour) ? rose->neighbour->number : 0, | |
1447 | rose->state, | |
1448 | rose->vs, | |
1449 | rose->vr, | |
1450 | rose->va, | |
1451 | ax25_display_timer(&rose->timer) / HZ, | |
1452 | rose->t1 / HZ, | |
1453 | rose->t2 / HZ, | |
1454 | rose->t3 / HZ, | |
1455 | rose->hb / HZ, | |
1456 | ax25_display_timer(&rose->idletimer) / (60 * HZ), | |
1457 | rose->idle / (60 * HZ), | |
1458 | atomic_read(&s->sk_wmem_alloc), | |
1459 | atomic_read(&s->sk_rmem_alloc), | |
1460 | s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L); | |
1461 | } | |
1462 | ||
1463 | return 0; | |
1464 | } | |
1465 | ||
56b3d975 | 1466 | static const struct seq_operations rose_info_seqops = { |
1da177e4 LT |
1467 | .start = rose_info_start, |
1468 | .next = rose_info_next, | |
1469 | .stop = rose_info_stop, | |
1470 | .show = rose_info_show, | |
1471 | }; | |
1472 | ||
1473 | static int rose_info_open(struct inode *inode, struct file *file) | |
1474 | { | |
1475 | return seq_open(file, &rose_info_seqops); | |
1476 | } | |
1477 | ||
da7071d7 | 1478 | static const struct file_operations rose_info_fops = { |
1da177e4 LT |
1479 | .owner = THIS_MODULE, |
1480 | .open = rose_info_open, | |
1481 | .read = seq_read, | |
1482 | .llseek = seq_lseek, | |
1483 | .release = seq_release, | |
1484 | }; | |
1485 | #endif /* CONFIG_PROC_FS */ | |
1486 | ||
1487 | static struct net_proto_family rose_family_ops = { | |
1488 | .family = PF_ROSE, | |
1489 | .create = rose_create, | |
1490 | .owner = THIS_MODULE, | |
1491 | }; | |
1492 | ||
1493 | static struct proto_ops rose_proto_ops = { | |
1494 | .family = PF_ROSE, | |
1495 | .owner = THIS_MODULE, | |
1496 | .release = rose_release, | |
1497 | .bind = rose_bind, | |
1498 | .connect = rose_connect, | |
1499 | .socketpair = sock_no_socketpair, | |
1500 | .accept = rose_accept, | |
1501 | .getname = rose_getname, | |
1502 | .poll = datagram_poll, | |
1503 | .ioctl = rose_ioctl, | |
1504 | .listen = rose_listen, | |
1505 | .shutdown = sock_no_shutdown, | |
1506 | .setsockopt = rose_setsockopt, | |
1507 | .getsockopt = rose_getsockopt, | |
1508 | .sendmsg = rose_sendmsg, | |
1509 | .recvmsg = rose_recvmsg, | |
1510 | .mmap = sock_no_mmap, | |
1511 | .sendpage = sock_no_sendpage, | |
1512 | }; | |
1513 | ||
1514 | static struct notifier_block rose_dev_notifier = { | |
1515 | .notifier_call = rose_device_event, | |
1516 | }; | |
1517 | ||
1518 | static struct net_device **dev_rose; | |
1519 | ||
8d5cf596 RB |
1520 | static struct ax25_protocol rose_pid = { |
1521 | .pid = AX25_P_ROSE, | |
1522 | .func = rose_route_frame | |
1523 | }; | |
1524 | ||
a4282717 RB |
1525 | static struct ax25_linkfail rose_linkfail_notifier = { |
1526 | .func = rose_link_failed | |
1527 | }; | |
1528 | ||
1da177e4 LT |
1529 | static int __init rose_proto_init(void) |
1530 | { | |
1531 | int i; | |
a83cd2cc | 1532 | int rc; |
1da177e4 | 1533 | |
a83cd2cc AD |
1534 | if (rose_ndevs > 0x7FFFFFFF/sizeof(struct net_device *)) { |
1535 | printk(KERN_ERR "ROSE: rose_proto_init - rose_ndevs parameter to large\n"); | |
1536 | rc = -EINVAL; | |
1537 | goto out; | |
1538 | } | |
1539 | ||
1540 | rc = proto_register(&rose_proto, 0); | |
1da177e4 LT |
1541 | if (rc != 0) |
1542 | goto out; | |
1543 | ||
1544 | rose_callsign = null_ax25_address; | |
1545 | ||
1b30dd35 | 1546 | dev_rose = kzalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL); |
1da177e4 LT |
1547 | if (dev_rose == NULL) { |
1548 | printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate device structure\n"); | |
a83cd2cc AD |
1549 | rc = -ENOMEM; |
1550 | goto out_proto_unregister; | |
1da177e4 LT |
1551 | } |
1552 | ||
1da177e4 LT |
1553 | for (i = 0; i < rose_ndevs; i++) { |
1554 | struct net_device *dev; | |
1555 | char name[IFNAMSIZ]; | |
1556 | ||
1557 | sprintf(name, "rose%d", i); | |
3dcf7c5e | 1558 | dev = alloc_netdev(sizeof(struct net_device_stats), |
1da177e4 LT |
1559 | name, rose_setup); |
1560 | if (!dev) { | |
1561 | printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate memory\n"); | |
70ff3b66 | 1562 | rc = -ENOMEM; |
1da177e4 LT |
1563 | goto fail; |
1564 | } | |
70ff3b66 AD |
1565 | rc = register_netdev(dev); |
1566 | if (rc) { | |
520d1b83 | 1567 | printk(KERN_ERR "ROSE: netdevice registration failed\n"); |
1da177e4 LT |
1568 | free_netdev(dev); |
1569 | goto fail; | |
1570 | } | |
b1d21ca8 | 1571 | lockdep_set_class(&dev->_xmit_lock, &rose_netdev_xmit_lock_key); |
1da177e4 LT |
1572 | dev_rose[i] = dev; |
1573 | } | |
1574 | ||
1575 | sock_register(&rose_family_ops); | |
1576 | register_netdevice_notifier(&rose_dev_notifier); | |
1da177e4 | 1577 | |
8d5cf596 | 1578 | ax25_register_pid(&rose_pid); |
a4282717 | 1579 | ax25_linkfail_register(&rose_linkfail_notifier); |
1da177e4 LT |
1580 | |
1581 | #ifdef CONFIG_SYSCTL | |
1582 | rose_register_sysctl(); | |
1583 | #endif | |
1584 | rose_loopback_init(); | |
1585 | ||
1586 | rose_add_loopback_neigh(); | |
1587 | ||
457c4cbc EB |
1588 | proc_net_fops_create(&init_net, "rose", S_IRUGO, &rose_info_fops); |
1589 | proc_net_fops_create(&init_net, "rose_neigh", S_IRUGO, &rose_neigh_fops); | |
1590 | proc_net_fops_create(&init_net, "rose_nodes", S_IRUGO, &rose_nodes_fops); | |
1591 | proc_net_fops_create(&init_net, "rose_routes", S_IRUGO, &rose_routes_fops); | |
1da177e4 LT |
1592 | out: |
1593 | return rc; | |
1594 | fail: | |
1595 | while (--i >= 0) { | |
1596 | unregister_netdev(dev_rose[i]); | |
1597 | free_netdev(dev_rose[i]); | |
1598 | } | |
1599 | kfree(dev_rose); | |
a83cd2cc | 1600 | out_proto_unregister: |
1da177e4 | 1601 | proto_unregister(&rose_proto); |
70ff3b66 | 1602 | goto out; |
1da177e4 LT |
1603 | } |
1604 | module_init(rose_proto_init); | |
1605 | ||
1606 | module_param(rose_ndevs, int, 0); | |
1607 | MODULE_PARM_DESC(rose_ndevs, "number of ROSE devices"); | |
1608 | ||
1609 | MODULE_AUTHOR("Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>"); | |
1610 | MODULE_DESCRIPTION("The amateur radio ROSE network layer protocol"); | |
1611 | MODULE_LICENSE("GPL"); | |
1612 | MODULE_ALIAS_NETPROTO(PF_ROSE); | |
1613 | ||
1614 | static void __exit rose_exit(void) | |
1615 | { | |
1616 | int i; | |
1617 | ||
457c4cbc EB |
1618 | proc_net_remove(&init_net, "rose"); |
1619 | proc_net_remove(&init_net, "rose_neigh"); | |
1620 | proc_net_remove(&init_net, "rose_nodes"); | |
1621 | proc_net_remove(&init_net, "rose_routes"); | |
1da177e4 LT |
1622 | rose_loopback_clear(); |
1623 | ||
1624 | rose_rt_free(); | |
1625 | ||
1626 | ax25_protocol_release(AX25_P_ROSE); | |
a4282717 | 1627 | ax25_linkfail_release(&rose_linkfail_notifier); |
1da177e4 LT |
1628 | |
1629 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
1630 | ax25_listen_release(&rose_callsign, NULL); | |
1631 | ||
1632 | #ifdef CONFIG_SYSCTL | |
1633 | rose_unregister_sysctl(); | |
1634 | #endif | |
1635 | unregister_netdevice_notifier(&rose_dev_notifier); | |
1636 | ||
1637 | sock_unregister(PF_ROSE); | |
1638 | ||
1639 | for (i = 0; i < rose_ndevs; i++) { | |
1640 | struct net_device *dev = dev_rose[i]; | |
1641 | ||
1642 | if (dev) { | |
1643 | unregister_netdev(dev); | |
1644 | free_netdev(dev); | |
1645 | } | |
1646 | } | |
1647 | ||
1648 | kfree(dev_rose); | |
1649 | proto_unregister(&rose_proto); | |
1650 | } | |
1651 | ||
1652 | module_exit(rose_exit); |