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> | |
5a0e3ad6 | 21 | #include <linux/slab.h> |
1da177e4 LT |
22 | #include <linux/kernel.h> |
23 | #include <linux/sched.h> | |
24 | #include <linux/spinlock.h> | |
25 | #include <linux/timer.h> | |
26 | #include <linux/string.h> | |
27 | #include <linux/sockios.h> | |
28 | #include <linux/net.h> | |
29 | #include <linux/stat.h> | |
457c4cbc | 30 | #include <net/net_namespace.h> |
1da177e4 LT |
31 | #include <net/ax25.h> |
32 | #include <linux/inet.h> | |
33 | #include <linux/netdevice.h> | |
34 | #include <linux/if_arp.h> | |
35 | #include <linux/skbuff.h> | |
36 | #include <net/sock.h> | |
1da177e4 LT |
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 | ||
5708e868 | 66 | static const struct proto_ops rose_proto_ops; |
1da177e4 LT |
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; | |
cf508b12 | 77 | static struct lock_class_key rose_netdev_addr_lock_key; |
b1d21ca8 | 78 | |
e8a0464c DM |
79 | static void rose_set_lockdep_one(struct net_device *dev, |
80 | struct netdev_queue *txq, | |
81 | void *_unused) | |
c773e847 DM |
82 | { |
83 | lockdep_set_class(&txq->_xmit_lock, &rose_netdev_xmit_lock_key); | |
84 | } | |
85 | ||
86 | static void rose_set_lockdep_key(struct net_device *dev) | |
87 | { | |
cf508b12 | 88 | lockdep_set_class(&dev->addr_list_lock, &rose_netdev_addr_lock_key); |
e8a0464c | 89 | netdev_for_each_tx_queue(dev, rose_set_lockdep_one, NULL); |
c773e847 DM |
90 | } |
91 | ||
1da177e4 LT |
92 | /* |
93 | * Convert a ROSE address into text. | |
94 | */ | |
dcf777f6 | 95 | char *rose2asc(char *buf, const rose_address *addr) |
1da177e4 | 96 | { |
1da177e4 LT |
97 | if (addr->rose_addr[0] == 0x00 && addr->rose_addr[1] == 0x00 && |
98 | addr->rose_addr[2] == 0x00 && addr->rose_addr[3] == 0x00 && | |
99 | addr->rose_addr[4] == 0x00) { | |
dcf777f6 | 100 | strcpy(buf, "*"); |
1da177e4 | 101 | } else { |
dcf777f6 | 102 | sprintf(buf, "%02X%02X%02X%02X%02X", addr->rose_addr[0] & 0xFF, |
1da177e4 LT |
103 | addr->rose_addr[1] & 0xFF, |
104 | addr->rose_addr[2] & 0xFF, | |
105 | addr->rose_addr[3] & 0xFF, | |
106 | addr->rose_addr[4] & 0xFF); | |
107 | } | |
108 | ||
dcf777f6 | 109 | return buf; |
1da177e4 LT |
110 | } |
111 | ||
112 | /* | |
113 | * Compare two ROSE addresses, 0 == equal. | |
114 | */ | |
115 | int rosecmp(rose_address *addr1, rose_address *addr2) | |
116 | { | |
117 | int i; | |
118 | ||
119 | for (i = 0; i < 5; i++) | |
120 | if (addr1->rose_addr[i] != addr2->rose_addr[i]) | |
121 | return 1; | |
122 | ||
123 | return 0; | |
124 | } | |
125 | ||
126 | /* | |
127 | * Compare two ROSE addresses for only mask digits, 0 == equal. | |
128 | */ | |
129 | int rosecmpm(rose_address *addr1, rose_address *addr2, unsigned short mask) | |
130 | { | |
95b7d924 | 131 | unsigned int i, j; |
1da177e4 LT |
132 | |
133 | if (mask > 10) | |
134 | return 1; | |
135 | ||
136 | for (i = 0; i < mask; i++) { | |
137 | j = i / 2; | |
138 | ||
139 | if ((i % 2) != 0) { | |
140 | if ((addr1->rose_addr[j] & 0x0F) != (addr2->rose_addr[j] & 0x0F)) | |
141 | return 1; | |
142 | } else { | |
143 | if ((addr1->rose_addr[j] & 0xF0) != (addr2->rose_addr[j] & 0xF0)) | |
144 | return 1; | |
145 | } | |
146 | } | |
147 | ||
148 | return 0; | |
149 | } | |
150 | ||
151 | /* | |
152 | * Socket removal during an interrupt is now safe. | |
153 | */ | |
154 | static void rose_remove_socket(struct sock *sk) | |
155 | { | |
156 | spin_lock_bh(&rose_list_lock); | |
157 | sk_del_node_init(sk); | |
158 | spin_unlock_bh(&rose_list_lock); | |
159 | } | |
160 | ||
161 | /* | |
162 | * Kill all bound sockets on a broken link layer connection to a | |
163 | * particular neighbour. | |
164 | */ | |
165 | void rose_kill_by_neigh(struct rose_neigh *neigh) | |
166 | { | |
167 | struct sock *s; | |
1da177e4 LT |
168 | |
169 | spin_lock_bh(&rose_list_lock); | |
b67bfe0d | 170 | sk_for_each(s, &rose_list) { |
1da177e4 LT |
171 | struct rose_sock *rose = rose_sk(s); |
172 | ||
173 | if (rose->neighbour == neigh) { | |
174 | rose_disconnect(s, ENETUNREACH, ROSE_OUT_OF_ORDER, 0); | |
175 | rose->neighbour->use--; | |
176 | rose->neighbour = NULL; | |
177 | } | |
178 | } | |
179 | spin_unlock_bh(&rose_list_lock); | |
180 | } | |
181 | ||
182 | /* | |
183 | * Kill all bound sockets on a dropped device. | |
184 | */ | |
185 | static void rose_kill_by_device(struct net_device *dev) | |
186 | { | |
187 | struct sock *s; | |
1da177e4 LT |
188 | |
189 | spin_lock_bh(&rose_list_lock); | |
b67bfe0d | 190 | sk_for_each(s, &rose_list) { |
1da177e4 LT |
191 | struct rose_sock *rose = rose_sk(s); |
192 | ||
193 | if (rose->device == dev) { | |
194 | rose_disconnect(s, ENETUNREACH, ROSE_OUT_OF_ORDER, 0); | |
195 | rose->neighbour->use--; | |
196 | rose->device = NULL; | |
197 | } | |
198 | } | |
199 | spin_unlock_bh(&rose_list_lock); | |
200 | } | |
201 | ||
202 | /* | |
203 | * Handle device status changes. | |
204 | */ | |
351638e7 JP |
205 | static int rose_device_event(struct notifier_block *this, |
206 | unsigned long event, void *ptr) | |
1da177e4 | 207 | { |
351638e7 | 208 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
1da177e4 | 209 | |
721499e8 | 210 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
211 | return NOTIFY_DONE; |
212 | ||
1da177e4 LT |
213 | if (event != NETDEV_DOWN) |
214 | return NOTIFY_DONE; | |
215 | ||
216 | switch (dev->type) { | |
217 | case ARPHRD_ROSE: | |
218 | rose_kill_by_device(dev); | |
219 | break; | |
220 | case ARPHRD_AX25: | |
221 | rose_link_device_down(dev); | |
222 | rose_rt_device_down(dev); | |
223 | break; | |
224 | } | |
225 | ||
226 | return NOTIFY_DONE; | |
227 | } | |
228 | ||
229 | /* | |
230 | * Add a socket to the bound sockets list. | |
231 | */ | |
232 | static void rose_insert_socket(struct sock *sk) | |
233 | { | |
234 | ||
235 | spin_lock_bh(&rose_list_lock); | |
236 | sk_add_node(sk, &rose_list); | |
237 | spin_unlock_bh(&rose_list_lock); | |
238 | } | |
239 | ||
240 | /* | |
241 | * Find a socket that wants to accept the Call Request we just | |
242 | * received. | |
243 | */ | |
244 | static struct sock *rose_find_listener(rose_address *addr, ax25_address *call) | |
245 | { | |
246 | struct sock *s; | |
1da177e4 LT |
247 | |
248 | spin_lock_bh(&rose_list_lock); | |
b67bfe0d | 249 | sk_for_each(s, &rose_list) { |
1da177e4 LT |
250 | struct rose_sock *rose = rose_sk(s); |
251 | ||
252 | if (!rosecmp(&rose->source_addr, addr) && | |
253 | !ax25cmp(&rose->source_call, call) && | |
254 | !rose->source_ndigis && s->sk_state == TCP_LISTEN) | |
255 | goto found; | |
256 | } | |
257 | ||
b67bfe0d | 258 | sk_for_each(s, &rose_list) { |
1da177e4 LT |
259 | struct rose_sock *rose = rose_sk(s); |
260 | ||
261 | if (!rosecmp(&rose->source_addr, addr) && | |
262 | !ax25cmp(&rose->source_call, &null_ax25_address) && | |
263 | s->sk_state == TCP_LISTEN) | |
264 | goto found; | |
265 | } | |
266 | s = NULL; | |
267 | found: | |
268 | spin_unlock_bh(&rose_list_lock); | |
269 | return s; | |
270 | } | |
271 | ||
272 | /* | |
273 | * Find a connected ROSE socket given my LCI and device. | |
274 | */ | |
275 | struct sock *rose_find_socket(unsigned int lci, struct rose_neigh *neigh) | |
276 | { | |
277 | struct sock *s; | |
1da177e4 LT |
278 | |
279 | spin_lock_bh(&rose_list_lock); | |
b67bfe0d | 280 | sk_for_each(s, &rose_list) { |
1da177e4 LT |
281 | struct rose_sock *rose = rose_sk(s); |
282 | ||
283 | if (rose->lci == lci && rose->neighbour == neigh) | |
284 | goto found; | |
285 | } | |
286 | s = NULL; | |
287 | found: | |
288 | spin_unlock_bh(&rose_list_lock); | |
289 | return s; | |
290 | } | |
291 | ||
292 | /* | |
293 | * Find a unique LCI for a given device. | |
294 | */ | |
295 | unsigned int rose_new_lci(struct rose_neigh *neigh) | |
296 | { | |
297 | int lci; | |
298 | ||
299 | if (neigh->dce_mode) { | |
300 | for (lci = 1; lci <= sysctl_rose_maximum_vcs; lci++) | |
301 | if (rose_find_socket(lci, neigh) == NULL && rose_route_free_lci(lci, neigh) == NULL) | |
302 | return lci; | |
303 | } else { | |
304 | for (lci = sysctl_rose_maximum_vcs; lci > 0; lci--) | |
305 | if (rose_find_socket(lci, neigh) == NULL && rose_route_free_lci(lci, neigh) == NULL) | |
306 | return lci; | |
307 | } | |
308 | ||
309 | return 0; | |
310 | } | |
311 | ||
312 | /* | |
313 | * Deferred destroy. | |
314 | */ | |
315 | void rose_destroy_socket(struct sock *); | |
316 | ||
317 | /* | |
318 | * Handler for deferred kills. | |
319 | */ | |
320 | static void rose_destroy_timer(unsigned long data) | |
321 | { | |
322 | rose_destroy_socket((struct sock *)data); | |
323 | } | |
324 | ||
325 | /* | |
326 | * This is called from user mode and the timers. Thus it protects itself | |
327 | * against interrupt users but doesn't worry about being called during | |
328 | * work. Once it is removed from the queue no interrupt or bottom half | |
329 | * will touch it and we are (fairly 8-) ) safe. | |
330 | */ | |
331 | void rose_destroy_socket(struct sock *sk) | |
332 | { | |
333 | struct sk_buff *skb; | |
334 | ||
335 | rose_remove_socket(sk); | |
336 | rose_stop_heartbeat(sk); | |
337 | rose_stop_idletimer(sk); | |
338 | rose_stop_timer(sk); | |
339 | ||
340 | rose_clear_queues(sk); /* Flush the queues */ | |
341 | ||
342 | while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) { | |
343 | if (skb->sk != sk) { /* A pending connection */ | |
344 | /* Queue the unaccepted socket for death */ | |
345 | sock_set_flag(skb->sk, SOCK_DEAD); | |
346 | rose_start_heartbeat(skb->sk); | |
347 | rose_sk(skb->sk)->state = ROSE_STATE_0; | |
348 | } | |
349 | ||
350 | kfree_skb(skb); | |
351 | } | |
352 | ||
c564039f | 353 | if (sk_has_allocations(sk)) { |
1da177e4 | 354 | /* Defer: outstanding buffers */ |
b24b8a24 PE |
355 | setup_timer(&sk->sk_timer, rose_destroy_timer, |
356 | (unsigned long)sk); | |
1da177e4 | 357 | sk->sk_timer.expires = jiffies + 10 * HZ; |
1da177e4 LT |
358 | add_timer(&sk->sk_timer); |
359 | } else | |
360 | sock_put(sk); | |
361 | } | |
362 | ||
363 | /* | |
364 | * Handling for system calls applied via the various interfaces to a | |
365 | * ROSE socket object. | |
366 | */ | |
367 | ||
368 | static int rose_setsockopt(struct socket *sock, int level, int optname, | |
b7058842 | 369 | char __user *optval, unsigned int optlen) |
1da177e4 LT |
370 | { |
371 | struct sock *sk = sock->sk; | |
372 | struct rose_sock *rose = rose_sk(sk); | |
373 | int opt; | |
374 | ||
375 | if (level != SOL_ROSE) | |
376 | return -ENOPROTOOPT; | |
377 | ||
378 | if (optlen < sizeof(int)) | |
379 | return -EINVAL; | |
380 | ||
381 | if (get_user(opt, (int __user *)optval)) | |
382 | return -EFAULT; | |
383 | ||
384 | switch (optname) { | |
385 | case ROSE_DEFER: | |
386 | rose->defer = opt ? 1 : 0; | |
387 | return 0; | |
388 | ||
389 | case ROSE_T1: | |
390 | if (opt < 1) | |
391 | return -EINVAL; | |
392 | rose->t1 = opt * HZ; | |
393 | return 0; | |
394 | ||
395 | case ROSE_T2: | |
396 | if (opt < 1) | |
397 | return -EINVAL; | |
398 | rose->t2 = opt * HZ; | |
399 | return 0; | |
400 | ||
401 | case ROSE_T3: | |
402 | if (opt < 1) | |
403 | return -EINVAL; | |
404 | rose->t3 = opt * HZ; | |
405 | return 0; | |
406 | ||
407 | case ROSE_HOLDBACK: | |
408 | if (opt < 1) | |
409 | return -EINVAL; | |
410 | rose->hb = opt * HZ; | |
411 | return 0; | |
412 | ||
413 | case ROSE_IDLE: | |
414 | if (opt < 0) | |
415 | return -EINVAL; | |
416 | rose->idle = opt * 60 * HZ; | |
417 | return 0; | |
418 | ||
419 | case ROSE_QBITINCL: | |
420 | rose->qbitincl = opt ? 1 : 0; | |
421 | return 0; | |
422 | ||
423 | default: | |
424 | return -ENOPROTOOPT; | |
425 | } | |
426 | } | |
427 | ||
428 | static int rose_getsockopt(struct socket *sock, int level, int optname, | |
429 | char __user *optval, int __user *optlen) | |
430 | { | |
431 | struct sock *sk = sock->sk; | |
432 | struct rose_sock *rose = rose_sk(sk); | |
433 | int val = 0; | |
434 | int len; | |
435 | ||
436 | if (level != SOL_ROSE) | |
437 | return -ENOPROTOOPT; | |
438 | ||
439 | if (get_user(len, optlen)) | |
440 | return -EFAULT; | |
441 | ||
442 | if (len < 0) | |
443 | return -EINVAL; | |
444 | ||
445 | switch (optname) { | |
446 | case ROSE_DEFER: | |
447 | val = rose->defer; | |
448 | break; | |
449 | ||
450 | case ROSE_T1: | |
451 | val = rose->t1 / HZ; | |
452 | break; | |
453 | ||
454 | case ROSE_T2: | |
455 | val = rose->t2 / HZ; | |
456 | break; | |
457 | ||
458 | case ROSE_T3: | |
459 | val = rose->t3 / HZ; | |
460 | break; | |
461 | ||
462 | case ROSE_HOLDBACK: | |
463 | val = rose->hb / HZ; | |
464 | break; | |
465 | ||
466 | case ROSE_IDLE: | |
467 | val = rose->idle / (60 * HZ); | |
468 | break; | |
469 | ||
470 | case ROSE_QBITINCL: | |
471 | val = rose->qbitincl; | |
472 | break; | |
473 | ||
474 | default: | |
475 | return -ENOPROTOOPT; | |
476 | } | |
477 | ||
478 | len = min_t(unsigned int, len, sizeof(int)); | |
479 | ||
480 | if (put_user(len, optlen)) | |
481 | return -EFAULT; | |
482 | ||
483 | return copy_to_user(optval, &val, len) ? -EFAULT : 0; | |
484 | } | |
485 | ||
486 | static int rose_listen(struct socket *sock, int backlog) | |
487 | { | |
488 | struct sock *sk = sock->sk; | |
489 | ||
490 | if (sk->sk_state != TCP_LISTEN) { | |
491 | struct rose_sock *rose = rose_sk(sk); | |
492 | ||
493 | rose->dest_ndigis = 0; | |
494 | memset(&rose->dest_addr, 0, ROSE_ADDR_LEN); | |
495 | memset(&rose->dest_call, 0, AX25_ADDR_LEN); | |
496 | memset(rose->dest_digis, 0, AX25_ADDR_LEN * ROSE_MAX_DIGIS); | |
497 | sk->sk_max_ack_backlog = backlog; | |
498 | sk->sk_state = TCP_LISTEN; | |
499 | return 0; | |
500 | } | |
501 | ||
502 | return -EOPNOTSUPP; | |
503 | } | |
504 | ||
505 | static struct proto rose_proto = { | |
506 | .name = "ROSE", | |
507 | .owner = THIS_MODULE, | |
508 | .obj_size = sizeof(struct rose_sock), | |
509 | }; | |
510 | ||
3f378b68 EP |
511 | static int rose_create(struct net *net, struct socket *sock, int protocol, |
512 | int kern) | |
1da177e4 LT |
513 | { |
514 | struct sock *sk; | |
515 | struct rose_sock *rose; | |
516 | ||
09ad9bc7 | 517 | if (!net_eq(net, &init_net)) |
1b8d7ae4 EB |
518 | return -EAFNOSUPPORT; |
519 | ||
1da177e4 LT |
520 | if (sock->type != SOCK_SEQPACKET || protocol != 0) |
521 | return -ESOCKTNOSUPPORT; | |
522 | ||
6257ff21 PE |
523 | sk = sk_alloc(net, PF_ROSE, GFP_ATOMIC, &rose_proto); |
524 | if (sk == NULL) | |
1da177e4 LT |
525 | return -ENOMEM; |
526 | ||
527 | rose = rose_sk(sk); | |
528 | ||
529 | sock_init_data(sock, sk); | |
530 | ||
531 | skb_queue_head_init(&rose->ack_queue); | |
532 | #ifdef M_BIT | |
533 | skb_queue_head_init(&rose->frag_queue); | |
534 | rose->fraglen = 0; | |
535 | #endif | |
536 | ||
537 | sock->ops = &rose_proto_ops; | |
538 | sk->sk_protocol = protocol; | |
539 | ||
540 | init_timer(&rose->timer); | |
541 | init_timer(&rose->idletimer); | |
542 | ||
82e84249 RB |
543 | rose->t1 = msecs_to_jiffies(sysctl_rose_call_request_timeout); |
544 | rose->t2 = msecs_to_jiffies(sysctl_rose_reset_request_timeout); | |
545 | rose->t3 = msecs_to_jiffies(sysctl_rose_clear_request_timeout); | |
546 | rose->hb = msecs_to_jiffies(sysctl_rose_ack_hold_back_timeout); | |
547 | rose->idle = msecs_to_jiffies(sysctl_rose_no_activity_timeout); | |
1da177e4 LT |
548 | |
549 | rose->state = ROSE_STATE_0; | |
550 | ||
551 | return 0; | |
552 | } | |
553 | ||
554 | static struct sock *rose_make_new(struct sock *osk) | |
555 | { | |
556 | struct sock *sk; | |
557 | struct rose_sock *rose, *orose; | |
558 | ||
559 | if (osk->sk_type != SOCK_SEQPACKET) | |
560 | return NULL; | |
561 | ||
3b1e0a65 | 562 | sk = sk_alloc(sock_net(osk), PF_ROSE, GFP_ATOMIC, &rose_proto); |
6257ff21 | 563 | if (sk == NULL) |
1da177e4 LT |
564 | return NULL; |
565 | ||
566 | rose = rose_sk(sk); | |
567 | ||
568 | sock_init_data(NULL, sk); | |
569 | ||
570 | skb_queue_head_init(&rose->ack_queue); | |
571 | #ifdef M_BIT | |
572 | skb_queue_head_init(&rose->frag_queue); | |
573 | rose->fraglen = 0; | |
574 | #endif | |
575 | ||
576 | sk->sk_type = osk->sk_type; | |
1da177e4 LT |
577 | sk->sk_priority = osk->sk_priority; |
578 | sk->sk_protocol = osk->sk_protocol; | |
579 | sk->sk_rcvbuf = osk->sk_rcvbuf; | |
580 | sk->sk_sndbuf = osk->sk_sndbuf; | |
581 | sk->sk_state = TCP_ESTABLISHED; | |
53b924b3 | 582 | sock_copy_flags(sk, osk); |
1da177e4 LT |
583 | |
584 | init_timer(&rose->timer); | |
585 | init_timer(&rose->idletimer); | |
586 | ||
587 | orose = rose_sk(osk); | |
588 | rose->t1 = orose->t1; | |
589 | rose->t2 = orose->t2; | |
590 | rose->t3 = orose->t3; | |
591 | rose->hb = orose->hb; | |
592 | rose->idle = orose->idle; | |
593 | rose->defer = orose->defer; | |
594 | rose->device = orose->device; | |
595 | rose->qbitincl = orose->qbitincl; | |
596 | ||
597 | return sk; | |
598 | } | |
599 | ||
600 | static int rose_release(struct socket *sock) | |
601 | { | |
602 | struct sock *sk = sock->sk; | |
603 | struct rose_sock *rose; | |
604 | ||
605 | if (sk == NULL) return 0; | |
606 | ||
4965291a JP |
607 | sock_hold(sk); |
608 | sock_orphan(sk); | |
609 | lock_sock(sk); | |
1da177e4 LT |
610 | rose = rose_sk(sk); |
611 | ||
612 | switch (rose->state) { | |
613 | case ROSE_STATE_0: | |
4965291a | 614 | release_sock(sk); |
1da177e4 | 615 | rose_disconnect(sk, 0, -1, -1); |
4965291a | 616 | lock_sock(sk); |
1da177e4 LT |
617 | rose_destroy_socket(sk); |
618 | break; | |
619 | ||
620 | case ROSE_STATE_2: | |
621 | rose->neighbour->use--; | |
4965291a | 622 | release_sock(sk); |
1da177e4 | 623 | rose_disconnect(sk, 0, -1, -1); |
4965291a | 624 | lock_sock(sk); |
1da177e4 LT |
625 | rose_destroy_socket(sk); |
626 | break; | |
627 | ||
628 | case ROSE_STATE_1: | |
629 | case ROSE_STATE_3: | |
630 | case ROSE_STATE_4: | |
631 | case ROSE_STATE_5: | |
632 | rose_clear_queues(sk); | |
633 | rose_stop_idletimer(sk); | |
634 | rose_write_internal(sk, ROSE_CLEAR_REQUEST); | |
635 | rose_start_t3timer(sk); | |
636 | rose->state = ROSE_STATE_2; | |
637 | sk->sk_state = TCP_CLOSE; | |
638 | sk->sk_shutdown |= SEND_SHUTDOWN; | |
639 | sk->sk_state_change(sk); | |
640 | sock_set_flag(sk, SOCK_DEAD); | |
641 | sock_set_flag(sk, SOCK_DESTROY); | |
642 | break; | |
643 | ||
644 | default: | |
645 | break; | |
646 | } | |
647 | ||
648 | sock->sk = NULL; | |
4965291a JP |
649 | release_sock(sk); |
650 | sock_put(sk); | |
1da177e4 LT |
651 | |
652 | return 0; | |
653 | } | |
654 | ||
655 | static int rose_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) | |
656 | { | |
657 | struct sock *sk = sock->sk; | |
658 | struct rose_sock *rose = rose_sk(sk); | |
659 | struct sockaddr_rose *addr = (struct sockaddr_rose *)uaddr; | |
660 | struct net_device *dev; | |
01d7dd0e RB |
661 | ax25_address *source; |
662 | ax25_uid_assoc *user; | |
1da177e4 LT |
663 | int n; |
664 | ||
665 | if (!sock_flag(sk, SOCK_ZAPPED)) | |
666 | return -EINVAL; | |
667 | ||
668 | if (addr_len != sizeof(struct sockaddr_rose) && addr_len != sizeof(struct full_sockaddr_rose)) | |
669 | return -EINVAL; | |
670 | ||
671 | if (addr->srose_family != AF_ROSE) | |
672 | return -EINVAL; | |
673 | ||
674 | if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1) | |
675 | return -EINVAL; | |
676 | ||
9828e6e6 | 677 | if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS) |
1da177e4 LT |
678 | return -EINVAL; |
679 | ||
8849b720 | 680 | if ((dev = rose_dev_get(&addr->srose_addr)) == NULL) |
1da177e4 | 681 | return -EADDRNOTAVAIL; |
1da177e4 LT |
682 | |
683 | source = &addr->srose_call; | |
684 | ||
c2a2b8d3 | 685 | user = ax25_findbyuid(current_euid()); |
01d7dd0e RB |
686 | if (user) { |
687 | rose->source_call = user->call; | |
688 | ax25_uid_put(user); | |
689 | } else { | |
1da177e4 LT |
690 | if (ax25_uid_policy && !capable(CAP_NET_BIND_SERVICE)) |
691 | return -EACCES; | |
01d7dd0e | 692 | rose->source_call = *source; |
1da177e4 LT |
693 | } |
694 | ||
695 | rose->source_addr = addr->srose_addr; | |
1da177e4 LT |
696 | rose->device = dev; |
697 | rose->source_ndigis = addr->srose_ndigis; | |
698 | ||
699 | if (addr_len == sizeof(struct full_sockaddr_rose)) { | |
700 | struct full_sockaddr_rose *full_addr = (struct full_sockaddr_rose *)uaddr; | |
701 | for (n = 0 ; n < addr->srose_ndigis ; n++) | |
702 | rose->source_digis[n] = full_addr->srose_digis[n]; | |
703 | } else { | |
704 | if (rose->source_ndigis == 1) { | |
705 | rose->source_digis[0] = addr->srose_digi; | |
706 | } | |
707 | } | |
708 | ||
709 | rose_insert_socket(sk); | |
710 | ||
711 | sock_reset_flag(sk, SOCK_ZAPPED); | |
8849b720 | 712 | |
1da177e4 LT |
713 | return 0; |
714 | } | |
715 | ||
716 | static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_len, int flags) | |
717 | { | |
718 | struct sock *sk = sock->sk; | |
719 | struct rose_sock *rose = rose_sk(sk); | |
720 | struct sockaddr_rose *addr = (struct sockaddr_rose *)uaddr; | |
721 | unsigned char cause, diagnostic; | |
1da177e4 | 722 | struct net_device *dev; |
01d7dd0e | 723 | ax25_uid_assoc *user; |
2536b94a | 724 | int n, err = 0; |
1da177e4 LT |
725 | |
726 | if (addr_len != sizeof(struct sockaddr_rose) && addr_len != sizeof(struct full_sockaddr_rose)) | |
727 | return -EINVAL; | |
728 | ||
729 | if (addr->srose_family != AF_ROSE) | |
730 | return -EINVAL; | |
731 | ||
732 | if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1) | |
733 | return -EINVAL; | |
734 | ||
9828e6e6 | 735 | if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS) |
1da177e4 LT |
736 | return -EINVAL; |
737 | ||
738 | /* Source + Destination digis should not exceed ROSE_MAX_DIGIS */ | |
739 | if ((rose->source_ndigis + addr->srose_ndigis) > ROSE_MAX_DIGIS) | |
740 | return -EINVAL; | |
741 | ||
2536b94a RB |
742 | lock_sock(sk); |
743 | ||
744 | if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) { | |
745 | /* Connect completed during a ERESTARTSYS event */ | |
746 | sock->state = SS_CONNECTED; | |
747 | goto out_release; | |
748 | } | |
749 | ||
750 | if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) { | |
751 | sock->state = SS_UNCONNECTED; | |
752 | err = -ECONNREFUSED; | |
753 | goto out_release; | |
754 | } | |
755 | ||
756 | if (sk->sk_state == TCP_ESTABLISHED) { | |
757 | /* No reconnect on a seqpacket socket */ | |
758 | err = -EISCONN; | |
759 | goto out_release; | |
760 | } | |
761 | ||
762 | sk->sk_state = TCP_CLOSE; | |
763 | sock->state = SS_UNCONNECTED; | |
764 | ||
1da177e4 | 765 | rose->neighbour = rose_get_neigh(&addr->srose_addr, &cause, |
fe2c802a | 766 | &diagnostic, 0); |
43837b1e BP |
767 | if (!rose->neighbour) { |
768 | err = -ENETUNREACH; | |
769 | goto out_release; | |
770 | } | |
1da177e4 LT |
771 | |
772 | rose->lci = rose_new_lci(rose->neighbour); | |
2536b94a RB |
773 | if (!rose->lci) { |
774 | err = -ENETUNREACH; | |
775 | goto out_release; | |
776 | } | |
1da177e4 LT |
777 | |
778 | if (sock_flag(sk, SOCK_ZAPPED)) { /* Must bind first - autobinding in this may or may not work */ | |
779 | sock_reset_flag(sk, SOCK_ZAPPED); | |
780 | ||
2536b94a RB |
781 | if ((dev = rose_dev_first()) == NULL) { |
782 | err = -ENETUNREACH; | |
783 | goto out_release; | |
784 | } | |
1da177e4 | 785 | |
c2a2b8d3 | 786 | user = ax25_findbyuid(current_euid()); |
2536b94a RB |
787 | if (!user) { |
788 | err = -EINVAL; | |
789 | goto out_release; | |
790 | } | |
1da177e4 LT |
791 | |
792 | memcpy(&rose->source_addr, dev->dev_addr, ROSE_ADDR_LEN); | |
01d7dd0e | 793 | rose->source_call = user->call; |
1da177e4 | 794 | rose->device = dev; |
01d7dd0e | 795 | ax25_uid_put(user); |
1da177e4 LT |
796 | |
797 | rose_insert_socket(sk); /* Finish the bind */ | |
798 | } | |
1da177e4 LT |
799 | rose->dest_addr = addr->srose_addr; |
800 | rose->dest_call = addr->srose_call; | |
801 | rose->rand = ((long)rose & 0xFFFF) + rose->lci; | |
802 | rose->dest_ndigis = addr->srose_ndigis; | |
803 | ||
804 | if (addr_len == sizeof(struct full_sockaddr_rose)) { | |
805 | struct full_sockaddr_rose *full_addr = (struct full_sockaddr_rose *)uaddr; | |
806 | for (n = 0 ; n < addr->srose_ndigis ; n++) | |
807 | rose->dest_digis[n] = full_addr->srose_digis[n]; | |
808 | } else { | |
809 | if (rose->dest_ndigis == 1) { | |
810 | rose->dest_digis[0] = addr->srose_digi; | |
811 | } | |
812 | } | |
813 | ||
814 | /* Move to connecting socket, start sending Connect Requests */ | |
815 | sock->state = SS_CONNECTING; | |
816 | sk->sk_state = TCP_SYN_SENT; | |
817 | ||
818 | rose->state = ROSE_STATE_1; | |
819 | ||
820 | rose->neighbour->use++; | |
821 | ||
822 | rose_write_internal(sk, ROSE_CALL_REQUEST); | |
823 | rose_start_heartbeat(sk); | |
824 | rose_start_t1timer(sk); | |
825 | ||
826 | /* Now the loop */ | |
2536b94a RB |
827 | if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) { |
828 | err = -EINPROGRESS; | |
829 | goto out_release; | |
830 | } | |
1da177e4 LT |
831 | |
832 | /* | |
833 | * A Connect Ack with Choke or timeout or failed routing will go to | |
834 | * closed. | |
835 | */ | |
836 | if (sk->sk_state == TCP_SYN_SENT) { | |
75606dc6 | 837 | DEFINE_WAIT(wait); |
1da177e4 | 838 | |
1da177e4 | 839 | for (;;) { |
aa395145 | 840 | prepare_to_wait(sk_sleep(sk), &wait, |
6140efb5 | 841 | TASK_INTERRUPTIBLE); |
1da177e4 LT |
842 | if (sk->sk_state != TCP_SYN_SENT) |
843 | break; | |
75606dc6 RB |
844 | if (!signal_pending(current)) { |
845 | release_sock(sk); | |
1da177e4 | 846 | schedule(); |
2536b94a | 847 | lock_sock(sk); |
1da177e4 LT |
848 | continue; |
849 | } | |
75606dc6 RB |
850 | err = -ERESTARTSYS; |
851 | break; | |
1da177e4 | 852 | } |
aa395145 | 853 | finish_wait(sk_sleep(sk), &wait); |
75606dc6 RB |
854 | |
855 | if (err) | |
856 | goto out_release; | |
1da177e4 LT |
857 | } |
858 | ||
859 | if (sk->sk_state != TCP_ESTABLISHED) { | |
860 | sock->state = SS_UNCONNECTED; | |
2536b94a RB |
861 | err = sock_error(sk); /* Always set at this point */ |
862 | goto out_release; | |
1da177e4 LT |
863 | } |
864 | ||
865 | sock->state = SS_CONNECTED; | |
866 | ||
2536b94a RB |
867 | out_release: |
868 | release_sock(sk); | |
869 | ||
870 | return err; | |
1da177e4 LT |
871 | } |
872 | ||
873 | static int rose_accept(struct socket *sock, struct socket *newsock, int flags) | |
874 | { | |
1da177e4 LT |
875 | struct sk_buff *skb; |
876 | struct sock *newsk; | |
75606dc6 | 877 | DEFINE_WAIT(wait); |
1da177e4 LT |
878 | struct sock *sk; |
879 | int err = 0; | |
880 | ||
881 | if ((sk = sock->sk) == NULL) | |
882 | return -EINVAL; | |
883 | ||
884 | lock_sock(sk); | |
885 | if (sk->sk_type != SOCK_SEQPACKET) { | |
886 | err = -EOPNOTSUPP; | |
75606dc6 | 887 | goto out_release; |
1da177e4 LT |
888 | } |
889 | ||
890 | if (sk->sk_state != TCP_LISTEN) { | |
891 | err = -EINVAL; | |
75606dc6 | 892 | goto out_release; |
1da177e4 LT |
893 | } |
894 | ||
895 | /* | |
896 | * The write queue this time is holding sockets ready to use | |
897 | * hooked into the SABM we saved | |
898 | */ | |
1da177e4 | 899 | for (;;) { |
aa395145 | 900 | prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); |
75606dc6 | 901 | |
1da177e4 LT |
902 | skb = skb_dequeue(&sk->sk_receive_queue); |
903 | if (skb) | |
904 | break; | |
905 | ||
1da177e4 | 906 | if (flags & O_NONBLOCK) { |
75606dc6 RB |
907 | err = -EWOULDBLOCK; |
908 | break; | |
1da177e4 | 909 | } |
75606dc6 RB |
910 | if (!signal_pending(current)) { |
911 | release_sock(sk); | |
1da177e4 LT |
912 | schedule(); |
913 | lock_sock(sk); | |
914 | continue; | |
915 | } | |
75606dc6 RB |
916 | err = -ERESTARTSYS; |
917 | break; | |
1da177e4 | 918 | } |
aa395145 | 919 | finish_wait(sk_sleep(sk), &wait); |
75606dc6 RB |
920 | if (err) |
921 | goto out_release; | |
1da177e4 LT |
922 | |
923 | newsk = skb->sk; | |
44ccff1f | 924 | sock_graft(newsk, newsock); |
1da177e4 LT |
925 | |
926 | /* Now attach up the new socket */ | |
927 | skb->sk = NULL; | |
928 | kfree_skb(skb); | |
929 | sk->sk_ack_backlog--; | |
1da177e4 | 930 | |
75606dc6 | 931 | out_release: |
1da177e4 LT |
932 | release_sock(sk); |
933 | ||
934 | return err; | |
935 | } | |
936 | ||
937 | static int rose_getname(struct socket *sock, struct sockaddr *uaddr, | |
938 | int *uaddr_len, int peer) | |
939 | { | |
940 | struct full_sockaddr_rose *srose = (struct full_sockaddr_rose *)uaddr; | |
941 | struct sock *sk = sock->sk; | |
942 | struct rose_sock *rose = rose_sk(sk); | |
943 | int n; | |
944 | ||
17ac2e9c | 945 | memset(srose, 0, sizeof(*srose)); |
1da177e4 LT |
946 | if (peer != 0) { |
947 | if (sk->sk_state != TCP_ESTABLISHED) | |
948 | return -ENOTCONN; | |
949 | srose->srose_family = AF_ROSE; | |
950 | srose->srose_addr = rose->dest_addr; | |
951 | srose->srose_call = rose->dest_call; | |
952 | srose->srose_ndigis = rose->dest_ndigis; | |
953 | for (n = 0; n < rose->dest_ndigis; n++) | |
954 | srose->srose_digis[n] = rose->dest_digis[n]; | |
955 | } else { | |
956 | srose->srose_family = AF_ROSE; | |
957 | srose->srose_addr = rose->source_addr; | |
958 | srose->srose_call = rose->source_call; | |
959 | srose->srose_ndigis = rose->source_ndigis; | |
960 | for (n = 0; n < rose->source_ndigis; n++) | |
961 | srose->srose_digis[n] = rose->source_digis[n]; | |
962 | } | |
963 | ||
964 | *uaddr_len = sizeof(struct full_sockaddr_rose); | |
965 | return 0; | |
966 | } | |
967 | ||
968 | int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct rose_neigh *neigh, unsigned int lci) | |
969 | { | |
970 | struct sock *sk; | |
971 | struct sock *make; | |
972 | struct rose_sock *make_rose; | |
973 | struct rose_facilities_struct facilities; | |
e0bccd31 | 974 | int n; |
1da177e4 LT |
975 | |
976 | skb->sk = NULL; /* Initially we don't know who it's for */ | |
977 | ||
978 | /* | |
979 | * skb->data points to the rose frame start | |
980 | */ | |
981 | memset(&facilities, 0x00, sizeof(struct rose_facilities_struct)); | |
982 | ||
e0bccd31 BH |
983 | if (!rose_parse_facilities(skb->data + ROSE_CALL_REQ_FACILITIES_OFF, |
984 | skb->len - ROSE_CALL_REQ_FACILITIES_OFF, | |
985 | &facilities)) { | |
1da177e4 LT |
986 | rose_transmit_clear_request(neigh, lci, ROSE_INVALID_FACILITY, 76); |
987 | return 0; | |
988 | } | |
989 | ||
990 | sk = rose_find_listener(&facilities.source_addr, &facilities.source_call); | |
991 | ||
992 | /* | |
993 | * We can't accept the Call Request. | |
994 | */ | |
995 | if (sk == NULL || sk_acceptq_is_full(sk) || | |
996 | (make = rose_make_new(sk)) == NULL) { | |
997 | rose_transmit_clear_request(neigh, lci, ROSE_NETWORK_CONGESTION, 120); | |
998 | return 0; | |
999 | } | |
1000 | ||
1001 | skb->sk = make; | |
1002 | make->sk_state = TCP_ESTABLISHED; | |
1003 | make_rose = rose_sk(make); | |
1004 | ||
1005 | make_rose->lci = lci; | |
1006 | make_rose->dest_addr = facilities.dest_addr; | |
1007 | make_rose->dest_call = facilities.dest_call; | |
1008 | make_rose->dest_ndigis = facilities.dest_ndigis; | |
1009 | for (n = 0 ; n < facilities.dest_ndigis ; n++) | |
1010 | make_rose->dest_digis[n] = facilities.dest_digis[n]; | |
1011 | make_rose->source_addr = facilities.source_addr; | |
1012 | make_rose->source_call = facilities.source_call; | |
1013 | make_rose->source_ndigis = facilities.source_ndigis; | |
1014 | for (n = 0 ; n < facilities.source_ndigis ; n++) | |
db34de93 | 1015 | make_rose->source_digis[n] = facilities.source_digis[n]; |
1da177e4 LT |
1016 | make_rose->neighbour = neigh; |
1017 | make_rose->device = dev; | |
1018 | make_rose->facilities = facilities; | |
1019 | ||
1020 | make_rose->neighbour->use++; | |
1021 | ||
1022 | if (rose_sk(sk)->defer) { | |
1023 | make_rose->state = ROSE_STATE_5; | |
1024 | } else { | |
1025 | rose_write_internal(make, ROSE_CALL_ACCEPTED); | |
1026 | make_rose->state = ROSE_STATE_3; | |
1027 | rose_start_idletimer(make); | |
1028 | } | |
1029 | ||
1030 | make_rose->condition = 0x00; | |
1031 | make_rose->vs = 0; | |
1032 | make_rose->va = 0; | |
1033 | make_rose->vr = 0; | |
1034 | make_rose->vl = 0; | |
1035 | sk->sk_ack_backlog++; | |
1036 | ||
1037 | rose_insert_socket(make); | |
1038 | ||
1039 | skb_queue_head(&sk->sk_receive_queue, skb); | |
1040 | ||
1041 | rose_start_heartbeat(make); | |
1042 | ||
1043 | if (!sock_flag(sk, SOCK_DEAD)) | |
676d2369 | 1044 | sk->sk_data_ready(sk); |
1da177e4 LT |
1045 | |
1046 | return 1; | |
1047 | } | |
1048 | ||
1049 | static int rose_sendmsg(struct kiocb *iocb, struct socket *sock, | |
1050 | struct msghdr *msg, size_t len) | |
1051 | { | |
1052 | struct sock *sk = sock->sk; | |
1053 | struct rose_sock *rose = rose_sk(sk); | |
342dfc30 | 1054 | DECLARE_SOCKADDR(struct sockaddr_rose *, usrose, msg->msg_name); |
1da177e4 LT |
1055 | int err; |
1056 | struct full_sockaddr_rose srose; | |
1057 | struct sk_buff *skb; | |
1058 | unsigned char *asmptr; | |
1059 | int n, size, qbit = 0; | |
1060 | ||
1061 | if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT)) | |
1062 | return -EINVAL; | |
1063 | ||
1064 | if (sock_flag(sk, SOCK_ZAPPED)) | |
1065 | return -EADDRNOTAVAIL; | |
1066 | ||
1067 | if (sk->sk_shutdown & SEND_SHUTDOWN) { | |
1068 | send_sig(SIGPIPE, current, 0); | |
1069 | return -EPIPE; | |
1070 | } | |
1071 | ||
1072 | if (rose->neighbour == NULL || rose->device == NULL) | |
1073 | return -ENETUNREACH; | |
1074 | ||
1075 | if (usrose != NULL) { | |
1076 | if (msg->msg_namelen != sizeof(struct sockaddr_rose) && msg->msg_namelen != sizeof(struct full_sockaddr_rose)) | |
1077 | return -EINVAL; | |
1078 | memset(&srose, 0, sizeof(struct full_sockaddr_rose)); | |
1079 | memcpy(&srose, usrose, msg->msg_namelen); | |
1080 | if (rosecmp(&rose->dest_addr, &srose.srose_addr) != 0 || | |
1081 | ax25cmp(&rose->dest_call, &srose.srose_call) != 0) | |
1082 | return -EISCONN; | |
1083 | if (srose.srose_ndigis != rose->dest_ndigis) | |
1084 | return -EISCONN; | |
1085 | if (srose.srose_ndigis == rose->dest_ndigis) { | |
1086 | for (n = 0 ; n < srose.srose_ndigis ; n++) | |
1087 | if (ax25cmp(&rose->dest_digis[n], | |
1088 | &srose.srose_digis[n])) | |
1089 | return -EISCONN; | |
1090 | } | |
1091 | if (srose.srose_family != AF_ROSE) | |
1092 | return -EINVAL; | |
1093 | } else { | |
1094 | if (sk->sk_state != TCP_ESTABLISHED) | |
1095 | return -ENOTCONN; | |
1096 | ||
1097 | srose.srose_family = AF_ROSE; | |
1098 | srose.srose_addr = rose->dest_addr; | |
1099 | srose.srose_call = rose->dest_call; | |
1100 | srose.srose_ndigis = rose->dest_ndigis; | |
1101 | for (n = 0 ; n < rose->dest_ndigis ; n++) | |
1102 | srose.srose_digis[n] = rose->dest_digis[n]; | |
1103 | } | |
1104 | ||
1da177e4 | 1105 | /* Build a packet */ |
83e0bbcb AC |
1106 | /* Sanity check the packet size */ |
1107 | if (len > 65535) | |
1108 | return -EMSGSIZE; | |
1109 | ||
1da177e4 LT |
1110 | size = len + AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN; |
1111 | ||
1112 | if ((skb = sock_alloc_send_skb(sk, size, msg->msg_flags & MSG_DONTWAIT, &err)) == NULL) | |
1113 | return err; | |
1114 | ||
1115 | skb_reserve(skb, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN); | |
1116 | ||
1117 | /* | |
1118 | * Put the data on the end | |
1119 | */ | |
1da177e4 | 1120 | |
eeeb0374 ACM |
1121 | skb_reset_transport_header(skb); |
1122 | skb_put(skb, len); | |
1da177e4 | 1123 | |
eeeb0374 | 1124 | err = memcpy_fromiovec(skb_transport_header(skb), msg->msg_iov, len); |
1da177e4 LT |
1125 | if (err) { |
1126 | kfree_skb(skb); | |
1127 | return err; | |
1128 | } | |
1129 | ||
1130 | /* | |
1131 | * If the Q BIT Include socket option is in force, the first | |
1132 | * byte of the user data is the logical value of the Q Bit. | |
1133 | */ | |
1134 | if (rose->qbitincl) { | |
1135 | qbit = skb->data[0]; | |
1136 | skb_pull(skb, 1); | |
1137 | } | |
1138 | ||
1139 | /* | |
1140 | * Push down the ROSE header | |
1141 | */ | |
1142 | asmptr = skb_push(skb, ROSE_MIN_LEN); | |
1143 | ||
1da177e4 LT |
1144 | /* Build a ROSE Network header */ |
1145 | asmptr[0] = ((rose->lci >> 8) & 0x0F) | ROSE_GFI; | |
1146 | asmptr[1] = (rose->lci >> 0) & 0xFF; | |
1147 | asmptr[2] = ROSE_DATA; | |
1148 | ||
1149 | if (qbit) | |
1150 | asmptr[0] |= ROSE_Q_BIT; | |
1151 | ||
1da177e4 LT |
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); | |
1da177e4 LT |
1219 | size_t copied; |
1220 | unsigned char *asmptr; | |
1221 | struct sk_buff *skb; | |
1222 | int n, er, qbit; | |
1223 | ||
1224 | /* | |
1225 | * This works for seqpacket too. The receiver has ordered the queue for | |
1226 | * us! We do one quick check first though | |
1227 | */ | |
1228 | if (sk->sk_state != TCP_ESTABLISHED) | |
1229 | return -ENOTCONN; | |
1230 | ||
1231 | /* Now we can treat all alike */ | |
1232 | if ((skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT, flags & MSG_DONTWAIT, &er)) == NULL) | |
1233 | return er; | |
1234 | ||
1235 | qbit = (skb->data[0] & ROSE_Q_BIT) == ROSE_Q_BIT; | |
1236 | ||
1237 | skb_pull(skb, ROSE_MIN_LEN); | |
1238 | ||
1239 | if (rose->qbitincl) { | |
1240 | asmptr = skb_push(skb, 1); | |
1241 | *asmptr = qbit; | |
1242 | } | |
1243 | ||
badff6d0 | 1244 | skb_reset_transport_header(skb); |
1da177e4 LT |
1245 | copied = skb->len; |
1246 | ||
1247 | if (copied > size) { | |
1248 | copied = size; | |
1249 | msg->msg_flags |= MSG_TRUNC; | |
1250 | } | |
1251 | ||
1252 | skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); | |
1253 | ||
f3d33426 HFS |
1254 | if (msg->msg_name) { |
1255 | struct sockaddr_rose *srose; | |
342dfc30 SH |
1256 | DECLARE_SOCKADDR(struct full_sockaddr_rose *, full_srose, |
1257 | msg->msg_name); | |
f3d33426 HFS |
1258 | |
1259 | memset(msg->msg_name, 0, sizeof(struct full_sockaddr_rose)); | |
1260 | srose = msg->msg_name; | |
1da177e4 LT |
1261 | srose->srose_family = AF_ROSE; |
1262 | srose->srose_addr = rose->dest_addr; | |
1263 | srose->srose_call = rose->dest_call; | |
1264 | srose->srose_ndigis = rose->dest_ndigis; | |
f81152e3 FW |
1265 | for (n = 0 ; n < rose->dest_ndigis ; n++) |
1266 | full_srose->srose_digis[n] = rose->dest_digis[n]; | |
1267 | msg->msg_namelen = sizeof(struct full_sockaddr_rose); | |
1da177e4 LT |
1268 | } |
1269 | ||
1270 | skb_free_datagram(sk, skb); | |
1271 | ||
1272 | return copied; | |
1273 | } | |
1274 | ||
1275 | ||
1276 | static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) | |
1277 | { | |
1278 | struct sock *sk = sock->sk; | |
1279 | struct rose_sock *rose = rose_sk(sk); | |
1280 | void __user *argp = (void __user *)arg; | |
1281 | ||
1282 | switch (cmd) { | |
1283 | case TIOCOUTQ: { | |
1284 | long amount; | |
31e6d363 ED |
1285 | |
1286 | amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); | |
1da177e4 LT |
1287 | if (amount < 0) |
1288 | amount = 0; | |
20b7d10a | 1289 | return put_user(amount, (unsigned int __user *) argp); |
1da177e4 LT |
1290 | } |
1291 | ||
1292 | case TIOCINQ: { | |
1293 | struct sk_buff *skb; | |
1294 | long amount = 0L; | |
1295 | /* These two are safe on a single CPU system as only user tasks fiddle here */ | |
1296 | if ((skb = skb_peek(&sk->sk_receive_queue)) != NULL) | |
1297 | amount = skb->len; | |
20b7d10a | 1298 | return put_user(amount, (unsigned int __user *) argp); |
1da177e4 LT |
1299 | } |
1300 | ||
1301 | case SIOCGSTAMP: | |
20b7d10a | 1302 | return sock_get_timestamp(sk, (struct timeval __user *) argp); |
1da177e4 | 1303 | |
ae40eb1e ED |
1304 | case SIOCGSTAMPNS: |
1305 | return sock_get_timestampns(sk, (struct timespec __user *) argp); | |
1306 | ||
1da177e4 LT |
1307 | case SIOCGIFADDR: |
1308 | case SIOCSIFADDR: | |
1309 | case SIOCGIFDSTADDR: | |
1310 | case SIOCSIFDSTADDR: | |
1311 | case SIOCGIFBRDADDR: | |
1312 | case SIOCSIFBRDADDR: | |
1313 | case SIOCGIFNETMASK: | |
1314 | case SIOCSIFNETMASK: | |
1315 | case SIOCGIFMETRIC: | |
1316 | case SIOCSIFMETRIC: | |
1317 | return -EINVAL; | |
1318 | ||
1319 | case SIOCADDRT: | |
1320 | case SIOCDELRT: | |
1321 | case SIOCRSCLRRT: | |
1322 | if (!capable(CAP_NET_ADMIN)) | |
1323 | return -EPERM; | |
1324 | return rose_rt_ioctl(cmd, argp); | |
1325 | ||
1326 | case SIOCRSGCAUSE: { | |
1327 | struct rose_cause_struct rose_cause; | |
1328 | rose_cause.cause = rose->cause; | |
1329 | rose_cause.diagnostic = rose->diagnostic; | |
1330 | return copy_to_user(argp, &rose_cause, sizeof(struct rose_cause_struct)) ? -EFAULT : 0; | |
1331 | } | |
1332 | ||
1333 | case SIOCRSSCAUSE: { | |
1334 | struct rose_cause_struct rose_cause; | |
1335 | if (copy_from_user(&rose_cause, argp, sizeof(struct rose_cause_struct))) | |
1336 | return -EFAULT; | |
1337 | rose->cause = rose_cause.cause; | |
1338 | rose->diagnostic = rose_cause.diagnostic; | |
1339 | return 0; | |
1340 | } | |
1341 | ||
1342 | case SIOCRSSL2CALL: | |
1343 | if (!capable(CAP_NET_ADMIN)) return -EPERM; | |
1344 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
1345 | ax25_listen_release(&rose_callsign, NULL); | |
1346 | if (copy_from_user(&rose_callsign, argp, sizeof(ax25_address))) | |
1347 | return -EFAULT; | |
1348 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
81dcd169 RB |
1349 | return ax25_listen_register(&rose_callsign, NULL); |
1350 | ||
1da177e4 LT |
1351 | return 0; |
1352 | ||
1353 | case SIOCRSGL2CALL: | |
1354 | return copy_to_user(argp, &rose_callsign, sizeof(ax25_address)) ? -EFAULT : 0; | |
1355 | ||
1356 | case SIOCRSACCEPT: | |
1357 | if (rose->state == ROSE_STATE_5) { | |
1358 | rose_write_internal(sk, ROSE_CALL_ACCEPTED); | |
1359 | rose_start_idletimer(sk); | |
1360 | rose->condition = 0x00; | |
1361 | rose->vs = 0; | |
1362 | rose->va = 0; | |
1363 | rose->vr = 0; | |
1364 | rose->vl = 0; | |
1365 | rose->state = ROSE_STATE_3; | |
1366 | } | |
1367 | return 0; | |
1368 | ||
1369 | default: | |
b5e5fa5e | 1370 | return -ENOIOCTLCMD; |
1da177e4 LT |
1371 | } |
1372 | ||
1373 | return 0; | |
1374 | } | |
1375 | ||
1376 | #ifdef CONFIG_PROC_FS | |
1377 | static void *rose_info_start(struct seq_file *seq, loff_t *pos) | |
95b7d924 | 1378 | __acquires(rose_list_lock) |
1da177e4 | 1379 | { |
1da177e4 | 1380 | spin_lock_bh(&rose_list_lock); |
b999748a | 1381 | return seq_hlist_start_head(&rose_list, *pos); |
1da177e4 LT |
1382 | } |
1383 | ||
1384 | static void *rose_info_next(struct seq_file *seq, void *v, loff_t *pos) | |
1385 | { | |
b999748a | 1386 | return seq_hlist_next(v, &rose_list, pos); |
1da177e4 | 1387 | } |
3dcf7c5e | 1388 | |
1da177e4 | 1389 | static void rose_info_stop(struct seq_file *seq, void *v) |
95b7d924 | 1390 | __releases(rose_list_lock) |
1da177e4 LT |
1391 | { |
1392 | spin_unlock_bh(&rose_list_lock); | |
1393 | } | |
1394 | ||
1395 | static int rose_info_show(struct seq_file *seq, void *v) | |
1396 | { | |
dcf777f6 | 1397 | char buf[11], rsbuf[11]; |
f75268cd | 1398 | |
1da177e4 | 1399 | if (v == SEQ_START_TOKEN) |
3dcf7c5e | 1400 | seq_puts(seq, |
1da177e4 LT |
1401 | "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"); |
1402 | ||
1403 | else { | |
b999748a | 1404 | struct sock *s = sk_entry(v); |
1da177e4 LT |
1405 | struct rose_sock *rose = rose_sk(s); |
1406 | const char *devname, *callsign; | |
1407 | const struct net_device *dev = rose->device; | |
1408 | ||
1409 | if (!dev) | |
1410 | devname = "???"; | |
1411 | else | |
1412 | devname = dev->name; | |
3dcf7c5e | 1413 | |
1da177e4 | 1414 | seq_printf(seq, "%-10s %-9s ", |
dcf777f6 RB |
1415 | rose2asc(rsbuf, &rose->dest_addr), |
1416 | ax2asc(buf, &rose->dest_call)); | |
1da177e4 LT |
1417 | |
1418 | if (ax25cmp(&rose->source_call, &null_ax25_address) == 0) | |
1419 | callsign = "??????-?"; | |
1420 | else | |
f75268cd | 1421 | callsign = ax2asc(buf, &rose->source_call); |
1da177e4 LT |
1422 | |
1423 | seq_printf(seq, | |
1424 | "%-10s %-9s %-5s %3.3X %05d %d %d %d %d %3lu %3lu %3lu %3lu %3lu %3lu/%03lu %5d %5d %ld\n", | |
dcf777f6 | 1425 | rose2asc(rsbuf, &rose->source_addr), |
1da177e4 LT |
1426 | callsign, |
1427 | devname, | |
1428 | rose->lci & 0x0FFF, | |
1429 | (rose->neighbour) ? rose->neighbour->number : 0, | |
1430 | rose->state, | |
1431 | rose->vs, | |
1432 | rose->vr, | |
1433 | rose->va, | |
1434 | ax25_display_timer(&rose->timer) / HZ, | |
1435 | rose->t1 / HZ, | |
1436 | rose->t2 / HZ, | |
1437 | rose->t3 / HZ, | |
1438 | rose->hb / HZ, | |
1439 | ax25_display_timer(&rose->idletimer) / (60 * HZ), | |
1440 | rose->idle / (60 * HZ), | |
31e6d363 ED |
1441 | sk_wmem_alloc_get(s), |
1442 | sk_rmem_alloc_get(s), | |
1da177e4 LT |
1443 | s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L); |
1444 | } | |
1445 | ||
1446 | return 0; | |
1447 | } | |
1448 | ||
56b3d975 | 1449 | static const struct seq_operations rose_info_seqops = { |
1da177e4 LT |
1450 | .start = rose_info_start, |
1451 | .next = rose_info_next, | |
1452 | .stop = rose_info_stop, | |
1453 | .show = rose_info_show, | |
1454 | }; | |
1455 | ||
1456 | static int rose_info_open(struct inode *inode, struct file *file) | |
1457 | { | |
1458 | return seq_open(file, &rose_info_seqops); | |
1459 | } | |
1460 | ||
da7071d7 | 1461 | static const struct file_operations rose_info_fops = { |
1da177e4 LT |
1462 | .owner = THIS_MODULE, |
1463 | .open = rose_info_open, | |
1464 | .read = seq_read, | |
1465 | .llseek = seq_lseek, | |
1466 | .release = seq_release, | |
1467 | }; | |
1468 | #endif /* CONFIG_PROC_FS */ | |
1469 | ||
ec1b4cf7 | 1470 | static const struct net_proto_family rose_family_ops = { |
1da177e4 LT |
1471 | .family = PF_ROSE, |
1472 | .create = rose_create, | |
1473 | .owner = THIS_MODULE, | |
1474 | }; | |
1475 | ||
5708e868 | 1476 | static const struct proto_ops rose_proto_ops = { |
1da177e4 LT |
1477 | .family = PF_ROSE, |
1478 | .owner = THIS_MODULE, | |
1479 | .release = rose_release, | |
1480 | .bind = rose_bind, | |
1481 | .connect = rose_connect, | |
1482 | .socketpair = sock_no_socketpair, | |
1483 | .accept = rose_accept, | |
1484 | .getname = rose_getname, | |
1485 | .poll = datagram_poll, | |
1486 | .ioctl = rose_ioctl, | |
1487 | .listen = rose_listen, | |
1488 | .shutdown = sock_no_shutdown, | |
1489 | .setsockopt = rose_setsockopt, | |
1490 | .getsockopt = rose_getsockopt, | |
1491 | .sendmsg = rose_sendmsg, | |
1492 | .recvmsg = rose_recvmsg, | |
1493 | .mmap = sock_no_mmap, | |
1494 | .sendpage = sock_no_sendpage, | |
1495 | }; | |
1496 | ||
1497 | static struct notifier_block rose_dev_notifier = { | |
1498 | .notifier_call = rose_device_event, | |
1499 | }; | |
1500 | ||
1501 | static struct net_device **dev_rose; | |
1502 | ||
8d5cf596 RB |
1503 | static struct ax25_protocol rose_pid = { |
1504 | .pid = AX25_P_ROSE, | |
1505 | .func = rose_route_frame | |
1506 | }; | |
1507 | ||
a4282717 RB |
1508 | static struct ax25_linkfail rose_linkfail_notifier = { |
1509 | .func = rose_link_failed | |
1510 | }; | |
1511 | ||
1da177e4 LT |
1512 | static int __init rose_proto_init(void) |
1513 | { | |
1514 | int i; | |
a83cd2cc | 1515 | int rc; |
1da177e4 | 1516 | |
a83cd2cc AD |
1517 | if (rose_ndevs > 0x7FFFFFFF/sizeof(struct net_device *)) { |
1518 | printk(KERN_ERR "ROSE: rose_proto_init - rose_ndevs parameter to large\n"); | |
1519 | rc = -EINVAL; | |
1520 | goto out; | |
1521 | } | |
1522 | ||
1523 | rc = proto_register(&rose_proto, 0); | |
1da177e4 LT |
1524 | if (rc != 0) |
1525 | goto out; | |
1526 | ||
1527 | rose_callsign = null_ax25_address; | |
1528 | ||
1b30dd35 | 1529 | dev_rose = kzalloc(rose_ndevs * sizeof(struct net_device *), GFP_KERNEL); |
1da177e4 LT |
1530 | if (dev_rose == NULL) { |
1531 | printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate device structure\n"); | |
a83cd2cc AD |
1532 | rc = -ENOMEM; |
1533 | goto out_proto_unregister; | |
1da177e4 LT |
1534 | } |
1535 | ||
1da177e4 LT |
1536 | for (i = 0; i < rose_ndevs; i++) { |
1537 | struct net_device *dev; | |
1538 | char name[IFNAMSIZ]; | |
1539 | ||
1540 | sprintf(name, "rose%d", i); | |
c835a677 | 1541 | dev = alloc_netdev(0, name, NET_NAME_UNKNOWN, rose_setup); |
1da177e4 LT |
1542 | if (!dev) { |
1543 | printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate memory\n"); | |
70ff3b66 | 1544 | rc = -ENOMEM; |
1da177e4 LT |
1545 | goto fail; |
1546 | } | |
70ff3b66 AD |
1547 | rc = register_netdev(dev); |
1548 | if (rc) { | |
520d1b83 | 1549 | printk(KERN_ERR "ROSE: netdevice registration failed\n"); |
1da177e4 LT |
1550 | free_netdev(dev); |
1551 | goto fail; | |
1552 | } | |
c773e847 | 1553 | rose_set_lockdep_key(dev); |
1da177e4 LT |
1554 | dev_rose[i] = dev; |
1555 | } | |
1556 | ||
1557 | sock_register(&rose_family_ops); | |
1558 | register_netdevice_notifier(&rose_dev_notifier); | |
1da177e4 | 1559 | |
8d5cf596 | 1560 | ax25_register_pid(&rose_pid); |
a4282717 | 1561 | ax25_linkfail_register(&rose_linkfail_notifier); |
1da177e4 LT |
1562 | |
1563 | #ifdef CONFIG_SYSCTL | |
1564 | rose_register_sysctl(); | |
1565 | #endif | |
1566 | rose_loopback_init(); | |
1567 | ||
1568 | rose_add_loopback_neigh(); | |
1569 | ||
d4beaa66 G |
1570 | proc_create("rose", S_IRUGO, init_net.proc_net, &rose_info_fops); |
1571 | proc_create("rose_neigh", S_IRUGO, init_net.proc_net, | |
1572 | &rose_neigh_fops); | |
1573 | proc_create("rose_nodes", S_IRUGO, init_net.proc_net, | |
1574 | &rose_nodes_fops); | |
1575 | proc_create("rose_routes", S_IRUGO, init_net.proc_net, | |
1576 | &rose_routes_fops); | |
1da177e4 LT |
1577 | out: |
1578 | return rc; | |
1579 | fail: | |
1580 | while (--i >= 0) { | |
1581 | unregister_netdev(dev_rose[i]); | |
1582 | free_netdev(dev_rose[i]); | |
1583 | } | |
1584 | kfree(dev_rose); | |
a83cd2cc | 1585 | out_proto_unregister: |
1da177e4 | 1586 | proto_unregister(&rose_proto); |
70ff3b66 | 1587 | goto out; |
1da177e4 LT |
1588 | } |
1589 | module_init(rose_proto_init); | |
1590 | ||
1591 | module_param(rose_ndevs, int, 0); | |
1592 | MODULE_PARM_DESC(rose_ndevs, "number of ROSE devices"); | |
1593 | ||
1594 | MODULE_AUTHOR("Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>"); | |
1595 | MODULE_DESCRIPTION("The amateur radio ROSE network layer protocol"); | |
1596 | MODULE_LICENSE("GPL"); | |
1597 | MODULE_ALIAS_NETPROTO(PF_ROSE); | |
1598 | ||
1599 | static void __exit rose_exit(void) | |
1600 | { | |
1601 | int i; | |
1602 | ||
ece31ffd G |
1603 | remove_proc_entry("rose", init_net.proc_net); |
1604 | remove_proc_entry("rose_neigh", init_net.proc_net); | |
1605 | remove_proc_entry("rose_nodes", init_net.proc_net); | |
1606 | remove_proc_entry("rose_routes", init_net.proc_net); | |
1da177e4 LT |
1607 | rose_loopback_clear(); |
1608 | ||
1609 | rose_rt_free(); | |
1610 | ||
1611 | ax25_protocol_release(AX25_P_ROSE); | |
a4282717 | 1612 | ax25_linkfail_release(&rose_linkfail_notifier); |
1da177e4 LT |
1613 | |
1614 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
1615 | ax25_listen_release(&rose_callsign, NULL); | |
1616 | ||
1617 | #ifdef CONFIG_SYSCTL | |
1618 | rose_unregister_sysctl(); | |
1619 | #endif | |
1620 | unregister_netdevice_notifier(&rose_dev_notifier); | |
1621 | ||
1622 | sock_unregister(PF_ROSE); | |
1623 | ||
1624 | for (i = 0; i < rose_ndevs; i++) { | |
1625 | struct net_device *dev = dev_rose[i]; | |
1626 | ||
1627 | if (dev) { | |
1628 | unregister_netdev(dev); | |
1629 | free_netdev(dev); | |
1630 | } | |
1631 | } | |
1632 | ||
1633 | kfree(dev_rose); | |
1634 | proto_unregister(&rose_proto); | |
1635 | } | |
1636 | ||
1637 | module_exit(rose_exit); |