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 | 22 | #include <linux/kernel.h> |
3f07c014 | 23 | #include <linux/sched/signal.h> |
1da177e4 LT |
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> | |
7c0f6ba6 | 37 | #include <linux/uaccess.h> |
1da177e4 LT |
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); | |
d496f784 RB |
195 | if (rose->neighbour) |
196 | rose->neighbour->use--; | |
1da177e4 LT |
197 | rose->device = NULL; |
198 | } | |
199 | } | |
200 | spin_unlock_bh(&rose_list_lock); | |
201 | } | |
202 | ||
203 | /* | |
204 | * Handle device status changes. | |
205 | */ | |
351638e7 JP |
206 | static int rose_device_event(struct notifier_block *this, |
207 | unsigned long event, void *ptr) | |
1da177e4 | 208 | { |
351638e7 | 209 | struct net_device *dev = netdev_notifier_info_to_dev(ptr); |
1da177e4 | 210 | |
721499e8 | 211 | if (!net_eq(dev_net(dev), &init_net)) |
e9dc8653 EB |
212 | return NOTIFY_DONE; |
213 | ||
1da177e4 LT |
214 | if (event != NETDEV_DOWN) |
215 | return NOTIFY_DONE; | |
216 | ||
217 | switch (dev->type) { | |
218 | case ARPHRD_ROSE: | |
219 | rose_kill_by_device(dev); | |
220 | break; | |
221 | case ARPHRD_AX25: | |
222 | rose_link_device_down(dev); | |
223 | rose_rt_device_down(dev); | |
224 | break; | |
225 | } | |
226 | ||
227 | return NOTIFY_DONE; | |
228 | } | |
229 | ||
230 | /* | |
231 | * Add a socket to the bound sockets list. | |
232 | */ | |
233 | static void rose_insert_socket(struct sock *sk) | |
234 | { | |
235 | ||
236 | spin_lock_bh(&rose_list_lock); | |
237 | sk_add_node(sk, &rose_list); | |
238 | spin_unlock_bh(&rose_list_lock); | |
239 | } | |
240 | ||
241 | /* | |
242 | * Find a socket that wants to accept the Call Request we just | |
243 | * received. | |
244 | */ | |
245 | static struct sock *rose_find_listener(rose_address *addr, ax25_address *call) | |
246 | { | |
247 | struct sock *s; | |
1da177e4 LT |
248 | |
249 | spin_lock_bh(&rose_list_lock); | |
b67bfe0d | 250 | sk_for_each(s, &rose_list) { |
1da177e4 LT |
251 | struct rose_sock *rose = rose_sk(s); |
252 | ||
253 | if (!rosecmp(&rose->source_addr, addr) && | |
254 | !ax25cmp(&rose->source_call, call) && | |
255 | !rose->source_ndigis && s->sk_state == TCP_LISTEN) | |
256 | goto found; | |
257 | } | |
258 | ||
b67bfe0d | 259 | sk_for_each(s, &rose_list) { |
1da177e4 LT |
260 | struct rose_sock *rose = rose_sk(s); |
261 | ||
262 | if (!rosecmp(&rose->source_addr, addr) && | |
263 | !ax25cmp(&rose->source_call, &null_ax25_address) && | |
264 | s->sk_state == TCP_LISTEN) | |
265 | goto found; | |
266 | } | |
267 | s = NULL; | |
268 | found: | |
269 | spin_unlock_bh(&rose_list_lock); | |
270 | return s; | |
271 | } | |
272 | ||
273 | /* | |
274 | * Find a connected ROSE socket given my LCI and device. | |
275 | */ | |
276 | struct sock *rose_find_socket(unsigned int lci, struct rose_neigh *neigh) | |
277 | { | |
278 | struct sock *s; | |
1da177e4 LT |
279 | |
280 | spin_lock_bh(&rose_list_lock); | |
b67bfe0d | 281 | sk_for_each(s, &rose_list) { |
1da177e4 LT |
282 | struct rose_sock *rose = rose_sk(s); |
283 | ||
284 | if (rose->lci == lci && rose->neighbour == neigh) | |
285 | goto found; | |
286 | } | |
287 | s = NULL; | |
288 | found: | |
289 | spin_unlock_bh(&rose_list_lock); | |
290 | return s; | |
291 | } | |
292 | ||
293 | /* | |
294 | * Find a unique LCI for a given device. | |
295 | */ | |
296 | unsigned int rose_new_lci(struct rose_neigh *neigh) | |
297 | { | |
298 | int lci; | |
299 | ||
300 | if (neigh->dce_mode) { | |
301 | for (lci = 1; lci <= sysctl_rose_maximum_vcs; lci++) | |
302 | if (rose_find_socket(lci, neigh) == NULL && rose_route_free_lci(lci, neigh) == NULL) | |
303 | return lci; | |
304 | } else { | |
305 | for (lci = sysctl_rose_maximum_vcs; lci > 0; lci--) | |
306 | if (rose_find_socket(lci, neigh) == NULL && rose_route_free_lci(lci, neigh) == NULL) | |
307 | return lci; | |
308 | } | |
309 | ||
310 | return 0; | |
311 | } | |
312 | ||
313 | /* | |
314 | * Deferred destroy. | |
315 | */ | |
316 | void rose_destroy_socket(struct sock *); | |
317 | ||
318 | /* | |
319 | * Handler for deferred kills. | |
320 | */ | |
4966babd | 321 | static void rose_destroy_timer(struct timer_list *t) |
1da177e4 | 322 | { |
4966babd KC |
323 | struct sock *sk = from_timer(sk, t, sk_timer); |
324 | ||
325 | rose_destroy_socket(sk); | |
1da177e4 LT |
326 | } |
327 | ||
328 | /* | |
329 | * This is called from user mode and the timers. Thus it protects itself | |
330 | * against interrupt users but doesn't worry about being called during | |
331 | * work. Once it is removed from the queue no interrupt or bottom half | |
332 | * will touch it and we are (fairly 8-) ) safe. | |
333 | */ | |
334 | void rose_destroy_socket(struct sock *sk) | |
335 | { | |
336 | struct sk_buff *skb; | |
337 | ||
338 | rose_remove_socket(sk); | |
339 | rose_stop_heartbeat(sk); | |
340 | rose_stop_idletimer(sk); | |
341 | rose_stop_timer(sk); | |
342 | ||
343 | rose_clear_queues(sk); /* Flush the queues */ | |
344 | ||
345 | while ((skb = skb_dequeue(&sk->sk_receive_queue)) != NULL) { | |
346 | if (skb->sk != sk) { /* A pending connection */ | |
347 | /* Queue the unaccepted socket for death */ | |
348 | sock_set_flag(skb->sk, SOCK_DEAD); | |
349 | rose_start_heartbeat(skb->sk); | |
350 | rose_sk(skb->sk)->state = ROSE_STATE_0; | |
351 | } | |
352 | ||
353 | kfree_skb(skb); | |
354 | } | |
355 | ||
c564039f | 356 | if (sk_has_allocations(sk)) { |
1da177e4 | 357 | /* Defer: outstanding buffers */ |
4966babd | 358 | timer_setup(&sk->sk_timer, rose_destroy_timer, 0); |
1da177e4 | 359 | sk->sk_timer.expires = jiffies + 10 * HZ; |
1da177e4 LT |
360 | add_timer(&sk->sk_timer); |
361 | } else | |
362 | sock_put(sk); | |
363 | } | |
364 | ||
365 | /* | |
366 | * Handling for system calls applied via the various interfaces to a | |
367 | * ROSE socket object. | |
368 | */ | |
369 | ||
370 | static int rose_setsockopt(struct socket *sock, int level, int optname, | |
b7058842 | 371 | char __user *optval, unsigned int optlen) |
1da177e4 LT |
372 | { |
373 | struct sock *sk = sock->sk; | |
374 | struct rose_sock *rose = rose_sk(sk); | |
375 | int opt; | |
376 | ||
377 | if (level != SOL_ROSE) | |
378 | return -ENOPROTOOPT; | |
379 | ||
380 | if (optlen < sizeof(int)) | |
381 | return -EINVAL; | |
382 | ||
383 | if (get_user(opt, (int __user *)optval)) | |
384 | return -EFAULT; | |
385 | ||
386 | switch (optname) { | |
387 | case ROSE_DEFER: | |
388 | rose->defer = opt ? 1 : 0; | |
389 | return 0; | |
390 | ||
391 | case ROSE_T1: | |
392 | if (opt < 1) | |
393 | return -EINVAL; | |
394 | rose->t1 = opt * HZ; | |
395 | return 0; | |
396 | ||
397 | case ROSE_T2: | |
398 | if (opt < 1) | |
399 | return -EINVAL; | |
400 | rose->t2 = opt * HZ; | |
401 | return 0; | |
402 | ||
403 | case ROSE_T3: | |
404 | if (opt < 1) | |
405 | return -EINVAL; | |
406 | rose->t3 = opt * HZ; | |
407 | return 0; | |
408 | ||
409 | case ROSE_HOLDBACK: | |
410 | if (opt < 1) | |
411 | return -EINVAL; | |
412 | rose->hb = opt * HZ; | |
413 | return 0; | |
414 | ||
415 | case ROSE_IDLE: | |
416 | if (opt < 0) | |
417 | return -EINVAL; | |
418 | rose->idle = opt * 60 * HZ; | |
419 | return 0; | |
420 | ||
421 | case ROSE_QBITINCL: | |
422 | rose->qbitincl = opt ? 1 : 0; | |
423 | return 0; | |
424 | ||
425 | default: | |
426 | return -ENOPROTOOPT; | |
427 | } | |
428 | } | |
429 | ||
430 | static int rose_getsockopt(struct socket *sock, int level, int optname, | |
431 | char __user *optval, int __user *optlen) | |
432 | { | |
433 | struct sock *sk = sock->sk; | |
434 | struct rose_sock *rose = rose_sk(sk); | |
435 | int val = 0; | |
436 | int len; | |
437 | ||
438 | if (level != SOL_ROSE) | |
439 | return -ENOPROTOOPT; | |
440 | ||
441 | if (get_user(len, optlen)) | |
442 | return -EFAULT; | |
443 | ||
444 | if (len < 0) | |
445 | return -EINVAL; | |
446 | ||
447 | switch (optname) { | |
448 | case ROSE_DEFER: | |
449 | val = rose->defer; | |
450 | break; | |
451 | ||
452 | case ROSE_T1: | |
453 | val = rose->t1 / HZ; | |
454 | break; | |
455 | ||
456 | case ROSE_T2: | |
457 | val = rose->t2 / HZ; | |
458 | break; | |
459 | ||
460 | case ROSE_T3: | |
461 | val = rose->t3 / HZ; | |
462 | break; | |
463 | ||
464 | case ROSE_HOLDBACK: | |
465 | val = rose->hb / HZ; | |
466 | break; | |
467 | ||
468 | case ROSE_IDLE: | |
469 | val = rose->idle / (60 * HZ); | |
470 | break; | |
471 | ||
472 | case ROSE_QBITINCL: | |
473 | val = rose->qbitincl; | |
474 | break; | |
475 | ||
476 | default: | |
477 | return -ENOPROTOOPT; | |
478 | } | |
479 | ||
480 | len = min_t(unsigned int, len, sizeof(int)); | |
481 | ||
482 | if (put_user(len, optlen)) | |
483 | return -EFAULT; | |
484 | ||
485 | return copy_to_user(optval, &val, len) ? -EFAULT : 0; | |
486 | } | |
487 | ||
488 | static int rose_listen(struct socket *sock, int backlog) | |
489 | { | |
490 | struct sock *sk = sock->sk; | |
491 | ||
492 | if (sk->sk_state != TCP_LISTEN) { | |
493 | struct rose_sock *rose = rose_sk(sk); | |
494 | ||
495 | rose->dest_ndigis = 0; | |
496 | memset(&rose->dest_addr, 0, ROSE_ADDR_LEN); | |
497 | memset(&rose->dest_call, 0, AX25_ADDR_LEN); | |
498 | memset(rose->dest_digis, 0, AX25_ADDR_LEN * ROSE_MAX_DIGIS); | |
499 | sk->sk_max_ack_backlog = backlog; | |
500 | sk->sk_state = TCP_LISTEN; | |
501 | return 0; | |
502 | } | |
503 | ||
504 | return -EOPNOTSUPP; | |
505 | } | |
506 | ||
507 | static struct proto rose_proto = { | |
508 | .name = "ROSE", | |
509 | .owner = THIS_MODULE, | |
510 | .obj_size = sizeof(struct rose_sock), | |
511 | }; | |
512 | ||
3f378b68 EP |
513 | static int rose_create(struct net *net, struct socket *sock, int protocol, |
514 | int kern) | |
1da177e4 LT |
515 | { |
516 | struct sock *sk; | |
517 | struct rose_sock *rose; | |
518 | ||
09ad9bc7 | 519 | if (!net_eq(net, &init_net)) |
1b8d7ae4 EB |
520 | return -EAFNOSUPPORT; |
521 | ||
1da177e4 LT |
522 | if (sock->type != SOCK_SEQPACKET || protocol != 0) |
523 | return -ESOCKTNOSUPPORT; | |
524 | ||
11aa9c28 | 525 | sk = sk_alloc(net, PF_ROSE, GFP_ATOMIC, &rose_proto, kern); |
6257ff21 | 526 | if (sk == NULL) |
1da177e4 LT |
527 | return -ENOMEM; |
528 | ||
529 | rose = rose_sk(sk); | |
530 | ||
531 | sock_init_data(sock, sk); | |
532 | ||
533 | skb_queue_head_init(&rose->ack_queue); | |
534 | #ifdef M_BIT | |
535 | skb_queue_head_init(&rose->frag_queue); | |
536 | rose->fraglen = 0; | |
537 | #endif | |
538 | ||
539 | sock->ops = &rose_proto_ops; | |
540 | sk->sk_protocol = protocol; | |
541 | ||
4966babd KC |
542 | timer_setup(&rose->timer, NULL, 0); |
543 | timer_setup(&rose->idletimer, NULL, 0); | |
1da177e4 | 544 | |
82e84249 RB |
545 | rose->t1 = msecs_to_jiffies(sysctl_rose_call_request_timeout); |
546 | rose->t2 = msecs_to_jiffies(sysctl_rose_reset_request_timeout); | |
547 | rose->t3 = msecs_to_jiffies(sysctl_rose_clear_request_timeout); | |
548 | rose->hb = msecs_to_jiffies(sysctl_rose_ack_hold_back_timeout); | |
549 | rose->idle = msecs_to_jiffies(sysctl_rose_no_activity_timeout); | |
1da177e4 LT |
550 | |
551 | rose->state = ROSE_STATE_0; | |
552 | ||
553 | return 0; | |
554 | } | |
555 | ||
556 | static struct sock *rose_make_new(struct sock *osk) | |
557 | { | |
558 | struct sock *sk; | |
559 | struct rose_sock *rose, *orose; | |
560 | ||
561 | if (osk->sk_type != SOCK_SEQPACKET) | |
562 | return NULL; | |
563 | ||
11aa9c28 | 564 | sk = sk_alloc(sock_net(osk), PF_ROSE, GFP_ATOMIC, &rose_proto, 0); |
6257ff21 | 565 | if (sk == NULL) |
1da177e4 LT |
566 | return NULL; |
567 | ||
568 | rose = rose_sk(sk); | |
569 | ||
570 | sock_init_data(NULL, sk); | |
571 | ||
572 | skb_queue_head_init(&rose->ack_queue); | |
573 | #ifdef M_BIT | |
574 | skb_queue_head_init(&rose->frag_queue); | |
575 | rose->fraglen = 0; | |
576 | #endif | |
577 | ||
578 | sk->sk_type = osk->sk_type; | |
1da177e4 LT |
579 | sk->sk_priority = osk->sk_priority; |
580 | sk->sk_protocol = osk->sk_protocol; | |
581 | sk->sk_rcvbuf = osk->sk_rcvbuf; | |
582 | sk->sk_sndbuf = osk->sk_sndbuf; | |
583 | sk->sk_state = TCP_ESTABLISHED; | |
53b924b3 | 584 | sock_copy_flags(sk, osk); |
1da177e4 | 585 | |
4966babd KC |
586 | timer_setup(&rose->timer, NULL, 0); |
587 | timer_setup(&rose->idletimer, NULL, 0); | |
1da177e4 LT |
588 | |
589 | orose = rose_sk(osk); | |
590 | rose->t1 = orose->t1; | |
591 | rose->t2 = orose->t2; | |
592 | rose->t3 = orose->t3; | |
593 | rose->hb = orose->hb; | |
594 | rose->idle = orose->idle; | |
595 | rose->defer = orose->defer; | |
596 | rose->device = orose->device; | |
597 | rose->qbitincl = orose->qbitincl; | |
598 | ||
599 | return sk; | |
600 | } | |
601 | ||
602 | static int rose_release(struct socket *sock) | |
603 | { | |
604 | struct sock *sk = sock->sk; | |
605 | struct rose_sock *rose; | |
606 | ||
607 | if (sk == NULL) return 0; | |
608 | ||
4965291a JP |
609 | sock_hold(sk); |
610 | sock_orphan(sk); | |
611 | lock_sock(sk); | |
1da177e4 LT |
612 | rose = rose_sk(sk); |
613 | ||
614 | switch (rose->state) { | |
615 | case ROSE_STATE_0: | |
4965291a | 616 | release_sock(sk); |
1da177e4 | 617 | rose_disconnect(sk, 0, -1, -1); |
4965291a | 618 | lock_sock(sk); |
1da177e4 LT |
619 | rose_destroy_socket(sk); |
620 | break; | |
621 | ||
622 | case ROSE_STATE_2: | |
623 | rose->neighbour->use--; | |
4965291a | 624 | release_sock(sk); |
1da177e4 | 625 | rose_disconnect(sk, 0, -1, -1); |
4965291a | 626 | lock_sock(sk); |
1da177e4 LT |
627 | rose_destroy_socket(sk); |
628 | break; | |
629 | ||
630 | case ROSE_STATE_1: | |
631 | case ROSE_STATE_3: | |
632 | case ROSE_STATE_4: | |
633 | case ROSE_STATE_5: | |
634 | rose_clear_queues(sk); | |
635 | rose_stop_idletimer(sk); | |
636 | rose_write_internal(sk, ROSE_CLEAR_REQUEST); | |
637 | rose_start_t3timer(sk); | |
638 | rose->state = ROSE_STATE_2; | |
639 | sk->sk_state = TCP_CLOSE; | |
640 | sk->sk_shutdown |= SEND_SHUTDOWN; | |
641 | sk->sk_state_change(sk); | |
642 | sock_set_flag(sk, SOCK_DEAD); | |
643 | sock_set_flag(sk, SOCK_DESTROY); | |
644 | break; | |
645 | ||
646 | default: | |
647 | break; | |
648 | } | |
649 | ||
650 | sock->sk = NULL; | |
4965291a JP |
651 | release_sock(sk); |
652 | sock_put(sk); | |
1da177e4 LT |
653 | |
654 | return 0; | |
655 | } | |
656 | ||
657 | static int rose_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) | |
658 | { | |
659 | struct sock *sk = sock->sk; | |
660 | struct rose_sock *rose = rose_sk(sk); | |
661 | struct sockaddr_rose *addr = (struct sockaddr_rose *)uaddr; | |
662 | struct net_device *dev; | |
01d7dd0e RB |
663 | ax25_address *source; |
664 | ax25_uid_assoc *user; | |
1da177e4 LT |
665 | int n; |
666 | ||
667 | if (!sock_flag(sk, SOCK_ZAPPED)) | |
668 | return -EINVAL; | |
669 | ||
670 | if (addr_len != sizeof(struct sockaddr_rose) && addr_len != sizeof(struct full_sockaddr_rose)) | |
671 | return -EINVAL; | |
672 | ||
673 | if (addr->srose_family != AF_ROSE) | |
674 | return -EINVAL; | |
675 | ||
676 | if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1) | |
677 | return -EINVAL; | |
678 | ||
9828e6e6 | 679 | if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS) |
1da177e4 LT |
680 | return -EINVAL; |
681 | ||
8849b720 | 682 | if ((dev = rose_dev_get(&addr->srose_addr)) == NULL) |
1da177e4 | 683 | return -EADDRNOTAVAIL; |
1da177e4 LT |
684 | |
685 | source = &addr->srose_call; | |
686 | ||
c2a2b8d3 | 687 | user = ax25_findbyuid(current_euid()); |
01d7dd0e RB |
688 | if (user) { |
689 | rose->source_call = user->call; | |
690 | ax25_uid_put(user); | |
691 | } else { | |
3b9c9f3b Y |
692 | if (ax25_uid_policy && !capable(CAP_NET_BIND_SERVICE)) { |
693 | dev_put(dev); | |
1da177e4 | 694 | return -EACCES; |
3b9c9f3b | 695 | } |
01d7dd0e | 696 | rose->source_call = *source; |
1da177e4 LT |
697 | } |
698 | ||
699 | rose->source_addr = addr->srose_addr; | |
1da177e4 LT |
700 | rose->device = dev; |
701 | rose->source_ndigis = addr->srose_ndigis; | |
702 | ||
703 | if (addr_len == sizeof(struct full_sockaddr_rose)) { | |
704 | struct full_sockaddr_rose *full_addr = (struct full_sockaddr_rose *)uaddr; | |
705 | for (n = 0 ; n < addr->srose_ndigis ; n++) | |
706 | rose->source_digis[n] = full_addr->srose_digis[n]; | |
707 | } else { | |
708 | if (rose->source_ndigis == 1) { | |
709 | rose->source_digis[0] = addr->srose_digi; | |
710 | } | |
711 | } | |
712 | ||
713 | rose_insert_socket(sk); | |
714 | ||
715 | sock_reset_flag(sk, SOCK_ZAPPED); | |
8849b720 | 716 | |
1da177e4 LT |
717 | return 0; |
718 | } | |
719 | ||
720 | static int rose_connect(struct socket *sock, struct sockaddr *uaddr, int addr_len, int flags) | |
721 | { | |
722 | struct sock *sk = sock->sk; | |
723 | struct rose_sock *rose = rose_sk(sk); | |
724 | struct sockaddr_rose *addr = (struct sockaddr_rose *)uaddr; | |
725 | unsigned char cause, diagnostic; | |
1da177e4 | 726 | struct net_device *dev; |
01d7dd0e | 727 | ax25_uid_assoc *user; |
2536b94a | 728 | int n, err = 0; |
1da177e4 LT |
729 | |
730 | if (addr_len != sizeof(struct sockaddr_rose) && addr_len != sizeof(struct full_sockaddr_rose)) | |
731 | return -EINVAL; | |
732 | ||
733 | if (addr->srose_family != AF_ROSE) | |
734 | return -EINVAL; | |
735 | ||
736 | if (addr_len == sizeof(struct sockaddr_rose) && addr->srose_ndigis > 1) | |
737 | return -EINVAL; | |
738 | ||
9828e6e6 | 739 | if ((unsigned int) addr->srose_ndigis > ROSE_MAX_DIGIS) |
1da177e4 LT |
740 | return -EINVAL; |
741 | ||
742 | /* Source + Destination digis should not exceed ROSE_MAX_DIGIS */ | |
743 | if ((rose->source_ndigis + addr->srose_ndigis) > ROSE_MAX_DIGIS) | |
744 | return -EINVAL; | |
745 | ||
2536b94a RB |
746 | lock_sock(sk); |
747 | ||
748 | if (sk->sk_state == TCP_ESTABLISHED && sock->state == SS_CONNECTING) { | |
749 | /* Connect completed during a ERESTARTSYS event */ | |
750 | sock->state = SS_CONNECTED; | |
751 | goto out_release; | |
752 | } | |
753 | ||
754 | if (sk->sk_state == TCP_CLOSE && sock->state == SS_CONNECTING) { | |
755 | sock->state = SS_UNCONNECTED; | |
756 | err = -ECONNREFUSED; | |
757 | goto out_release; | |
758 | } | |
759 | ||
760 | if (sk->sk_state == TCP_ESTABLISHED) { | |
761 | /* No reconnect on a seqpacket socket */ | |
762 | err = -EISCONN; | |
763 | goto out_release; | |
764 | } | |
765 | ||
766 | sk->sk_state = TCP_CLOSE; | |
767 | sock->state = SS_UNCONNECTED; | |
768 | ||
1da177e4 | 769 | rose->neighbour = rose_get_neigh(&addr->srose_addr, &cause, |
fe2c802a | 770 | &diagnostic, 0); |
43837b1e BP |
771 | if (!rose->neighbour) { |
772 | err = -ENETUNREACH; | |
773 | goto out_release; | |
774 | } | |
1da177e4 LT |
775 | |
776 | rose->lci = rose_new_lci(rose->neighbour); | |
2536b94a RB |
777 | if (!rose->lci) { |
778 | err = -ENETUNREACH; | |
779 | goto out_release; | |
780 | } | |
1da177e4 LT |
781 | |
782 | if (sock_flag(sk, SOCK_ZAPPED)) { /* Must bind first - autobinding in this may or may not work */ | |
783 | sock_reset_flag(sk, SOCK_ZAPPED); | |
784 | ||
2536b94a RB |
785 | if ((dev = rose_dev_first()) == NULL) { |
786 | err = -ENETUNREACH; | |
787 | goto out_release; | |
788 | } | |
1da177e4 | 789 | |
c2a2b8d3 | 790 | user = ax25_findbyuid(current_euid()); |
2536b94a RB |
791 | if (!user) { |
792 | err = -EINVAL; | |
793 | goto out_release; | |
794 | } | |
1da177e4 LT |
795 | |
796 | memcpy(&rose->source_addr, dev->dev_addr, ROSE_ADDR_LEN); | |
01d7dd0e | 797 | rose->source_call = user->call; |
1da177e4 | 798 | rose->device = dev; |
01d7dd0e | 799 | ax25_uid_put(user); |
1da177e4 LT |
800 | |
801 | rose_insert_socket(sk); /* Finish the bind */ | |
802 | } | |
1da177e4 LT |
803 | rose->dest_addr = addr->srose_addr; |
804 | rose->dest_call = addr->srose_call; | |
805 | rose->rand = ((long)rose & 0xFFFF) + rose->lci; | |
806 | rose->dest_ndigis = addr->srose_ndigis; | |
807 | ||
808 | if (addr_len == sizeof(struct full_sockaddr_rose)) { | |
809 | struct full_sockaddr_rose *full_addr = (struct full_sockaddr_rose *)uaddr; | |
810 | for (n = 0 ; n < addr->srose_ndigis ; n++) | |
811 | rose->dest_digis[n] = full_addr->srose_digis[n]; | |
812 | } else { | |
813 | if (rose->dest_ndigis == 1) { | |
814 | rose->dest_digis[0] = addr->srose_digi; | |
815 | } | |
816 | } | |
817 | ||
818 | /* Move to connecting socket, start sending Connect Requests */ | |
819 | sock->state = SS_CONNECTING; | |
820 | sk->sk_state = TCP_SYN_SENT; | |
821 | ||
822 | rose->state = ROSE_STATE_1; | |
823 | ||
824 | rose->neighbour->use++; | |
825 | ||
826 | rose_write_internal(sk, ROSE_CALL_REQUEST); | |
827 | rose_start_heartbeat(sk); | |
828 | rose_start_t1timer(sk); | |
829 | ||
830 | /* Now the loop */ | |
2536b94a RB |
831 | if (sk->sk_state != TCP_ESTABLISHED && (flags & O_NONBLOCK)) { |
832 | err = -EINPROGRESS; | |
833 | goto out_release; | |
834 | } | |
1da177e4 LT |
835 | |
836 | /* | |
837 | * A Connect Ack with Choke or timeout or failed routing will go to | |
838 | * closed. | |
839 | */ | |
840 | if (sk->sk_state == TCP_SYN_SENT) { | |
75606dc6 | 841 | DEFINE_WAIT(wait); |
1da177e4 | 842 | |
1da177e4 | 843 | for (;;) { |
aa395145 | 844 | prepare_to_wait(sk_sleep(sk), &wait, |
6140efb5 | 845 | TASK_INTERRUPTIBLE); |
1da177e4 LT |
846 | if (sk->sk_state != TCP_SYN_SENT) |
847 | break; | |
75606dc6 RB |
848 | if (!signal_pending(current)) { |
849 | release_sock(sk); | |
1da177e4 | 850 | schedule(); |
2536b94a | 851 | lock_sock(sk); |
1da177e4 LT |
852 | continue; |
853 | } | |
75606dc6 RB |
854 | err = -ERESTARTSYS; |
855 | break; | |
1da177e4 | 856 | } |
aa395145 | 857 | finish_wait(sk_sleep(sk), &wait); |
75606dc6 RB |
858 | |
859 | if (err) | |
860 | goto out_release; | |
1da177e4 LT |
861 | } |
862 | ||
863 | if (sk->sk_state != TCP_ESTABLISHED) { | |
864 | sock->state = SS_UNCONNECTED; | |
2536b94a RB |
865 | err = sock_error(sk); /* Always set at this point */ |
866 | goto out_release; | |
1da177e4 LT |
867 | } |
868 | ||
869 | sock->state = SS_CONNECTED; | |
870 | ||
2536b94a RB |
871 | out_release: |
872 | release_sock(sk); | |
873 | ||
874 | return err; | |
1da177e4 LT |
875 | } |
876 | ||
cdfbabfb DH |
877 | static int rose_accept(struct socket *sock, struct socket *newsock, int flags, |
878 | bool kern) | |
1da177e4 | 879 | { |
1da177e4 LT |
880 | struct sk_buff *skb; |
881 | struct sock *newsk; | |
75606dc6 | 882 | DEFINE_WAIT(wait); |
1da177e4 LT |
883 | struct sock *sk; |
884 | int err = 0; | |
885 | ||
886 | if ((sk = sock->sk) == NULL) | |
887 | return -EINVAL; | |
888 | ||
889 | lock_sock(sk); | |
890 | if (sk->sk_type != SOCK_SEQPACKET) { | |
891 | err = -EOPNOTSUPP; | |
75606dc6 | 892 | goto out_release; |
1da177e4 LT |
893 | } |
894 | ||
895 | if (sk->sk_state != TCP_LISTEN) { | |
896 | err = -EINVAL; | |
75606dc6 | 897 | goto out_release; |
1da177e4 LT |
898 | } |
899 | ||
900 | /* | |
901 | * The write queue this time is holding sockets ready to use | |
902 | * hooked into the SABM we saved | |
903 | */ | |
1da177e4 | 904 | for (;;) { |
aa395145 | 905 | prepare_to_wait(sk_sleep(sk), &wait, TASK_INTERRUPTIBLE); |
75606dc6 | 906 | |
1da177e4 LT |
907 | skb = skb_dequeue(&sk->sk_receive_queue); |
908 | if (skb) | |
909 | break; | |
910 | ||
1da177e4 | 911 | if (flags & O_NONBLOCK) { |
75606dc6 RB |
912 | err = -EWOULDBLOCK; |
913 | break; | |
1da177e4 | 914 | } |
75606dc6 RB |
915 | if (!signal_pending(current)) { |
916 | release_sock(sk); | |
1da177e4 LT |
917 | schedule(); |
918 | lock_sock(sk); | |
919 | continue; | |
920 | } | |
75606dc6 RB |
921 | err = -ERESTARTSYS; |
922 | break; | |
1da177e4 | 923 | } |
aa395145 | 924 | finish_wait(sk_sleep(sk), &wait); |
75606dc6 RB |
925 | if (err) |
926 | goto out_release; | |
1da177e4 LT |
927 | |
928 | newsk = skb->sk; | |
44ccff1f | 929 | sock_graft(newsk, newsock); |
1da177e4 LT |
930 | |
931 | /* Now attach up the new socket */ | |
932 | skb->sk = NULL; | |
933 | kfree_skb(skb); | |
934 | sk->sk_ack_backlog--; | |
1da177e4 | 935 | |
75606dc6 | 936 | out_release: |
1da177e4 LT |
937 | release_sock(sk); |
938 | ||
939 | return err; | |
940 | } | |
941 | ||
942 | static int rose_getname(struct socket *sock, struct sockaddr *uaddr, | |
9b2c45d4 | 943 | int peer) |
1da177e4 LT |
944 | { |
945 | struct full_sockaddr_rose *srose = (struct full_sockaddr_rose *)uaddr; | |
946 | struct sock *sk = sock->sk; | |
947 | struct rose_sock *rose = rose_sk(sk); | |
948 | int n; | |
949 | ||
17ac2e9c | 950 | memset(srose, 0, sizeof(*srose)); |
1da177e4 LT |
951 | if (peer != 0) { |
952 | if (sk->sk_state != TCP_ESTABLISHED) | |
953 | return -ENOTCONN; | |
954 | srose->srose_family = AF_ROSE; | |
955 | srose->srose_addr = rose->dest_addr; | |
956 | srose->srose_call = rose->dest_call; | |
957 | srose->srose_ndigis = rose->dest_ndigis; | |
958 | for (n = 0; n < rose->dest_ndigis; n++) | |
959 | srose->srose_digis[n] = rose->dest_digis[n]; | |
960 | } else { | |
961 | srose->srose_family = AF_ROSE; | |
962 | srose->srose_addr = rose->source_addr; | |
963 | srose->srose_call = rose->source_call; | |
964 | srose->srose_ndigis = rose->source_ndigis; | |
965 | for (n = 0; n < rose->source_ndigis; n++) | |
966 | srose->srose_digis[n] = rose->source_digis[n]; | |
967 | } | |
968 | ||
9b2c45d4 | 969 | return sizeof(struct full_sockaddr_rose); |
1da177e4 LT |
970 | } |
971 | ||
972 | int rose_rx_call_request(struct sk_buff *skb, struct net_device *dev, struct rose_neigh *neigh, unsigned int lci) | |
973 | { | |
974 | struct sock *sk; | |
975 | struct sock *make; | |
976 | struct rose_sock *make_rose; | |
977 | struct rose_facilities_struct facilities; | |
e0bccd31 | 978 | int n; |
1da177e4 LT |
979 | |
980 | skb->sk = NULL; /* Initially we don't know who it's for */ | |
981 | ||
982 | /* | |
983 | * skb->data points to the rose frame start | |
984 | */ | |
985 | memset(&facilities, 0x00, sizeof(struct rose_facilities_struct)); | |
986 | ||
e0bccd31 BH |
987 | if (!rose_parse_facilities(skb->data + ROSE_CALL_REQ_FACILITIES_OFF, |
988 | skb->len - ROSE_CALL_REQ_FACILITIES_OFF, | |
989 | &facilities)) { | |
1da177e4 LT |
990 | rose_transmit_clear_request(neigh, lci, ROSE_INVALID_FACILITY, 76); |
991 | return 0; | |
992 | } | |
993 | ||
994 | sk = rose_find_listener(&facilities.source_addr, &facilities.source_call); | |
995 | ||
996 | /* | |
997 | * We can't accept the Call Request. | |
998 | */ | |
999 | if (sk == NULL || sk_acceptq_is_full(sk) || | |
1000 | (make = rose_make_new(sk)) == NULL) { | |
1001 | rose_transmit_clear_request(neigh, lci, ROSE_NETWORK_CONGESTION, 120); | |
1002 | return 0; | |
1003 | } | |
1004 | ||
1005 | skb->sk = make; | |
1006 | make->sk_state = TCP_ESTABLISHED; | |
1007 | make_rose = rose_sk(make); | |
1008 | ||
1009 | make_rose->lci = lci; | |
1010 | make_rose->dest_addr = facilities.dest_addr; | |
1011 | make_rose->dest_call = facilities.dest_call; | |
1012 | make_rose->dest_ndigis = facilities.dest_ndigis; | |
1013 | for (n = 0 ; n < facilities.dest_ndigis ; n++) | |
1014 | make_rose->dest_digis[n] = facilities.dest_digis[n]; | |
1015 | make_rose->source_addr = facilities.source_addr; | |
1016 | make_rose->source_call = facilities.source_call; | |
1017 | make_rose->source_ndigis = facilities.source_ndigis; | |
1018 | for (n = 0 ; n < facilities.source_ndigis ; n++) | |
db34de93 | 1019 | make_rose->source_digis[n] = facilities.source_digis[n]; |
1da177e4 LT |
1020 | make_rose->neighbour = neigh; |
1021 | make_rose->device = dev; | |
1022 | make_rose->facilities = facilities; | |
1023 | ||
1024 | make_rose->neighbour->use++; | |
1025 | ||
1026 | if (rose_sk(sk)->defer) { | |
1027 | make_rose->state = ROSE_STATE_5; | |
1028 | } else { | |
1029 | rose_write_internal(make, ROSE_CALL_ACCEPTED); | |
1030 | make_rose->state = ROSE_STATE_3; | |
1031 | rose_start_idletimer(make); | |
1032 | } | |
1033 | ||
1034 | make_rose->condition = 0x00; | |
1035 | make_rose->vs = 0; | |
1036 | make_rose->va = 0; | |
1037 | make_rose->vr = 0; | |
1038 | make_rose->vl = 0; | |
1039 | sk->sk_ack_backlog++; | |
1040 | ||
1041 | rose_insert_socket(make); | |
1042 | ||
1043 | skb_queue_head(&sk->sk_receive_queue, skb); | |
1044 | ||
1045 | rose_start_heartbeat(make); | |
1046 | ||
1047 | if (!sock_flag(sk, SOCK_DEAD)) | |
676d2369 | 1048 | sk->sk_data_ready(sk); |
1da177e4 LT |
1049 | |
1050 | return 1; | |
1051 | } | |
1052 | ||
1b784140 | 1053 | static int rose_sendmsg(struct socket *sock, struct msghdr *msg, size_t len) |
1da177e4 LT |
1054 | { |
1055 | struct sock *sk = sock->sk; | |
1056 | struct rose_sock *rose = rose_sk(sk); | |
342dfc30 | 1057 | DECLARE_SOCKADDR(struct sockaddr_rose *, usrose, msg->msg_name); |
1da177e4 LT |
1058 | int err; |
1059 | struct full_sockaddr_rose srose; | |
1060 | struct sk_buff *skb; | |
1061 | unsigned char *asmptr; | |
1062 | int n, size, qbit = 0; | |
1063 | ||
1064 | if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_EOR|MSG_CMSG_COMPAT)) | |
1065 | return -EINVAL; | |
1066 | ||
1067 | if (sock_flag(sk, SOCK_ZAPPED)) | |
1068 | return -EADDRNOTAVAIL; | |
1069 | ||
1070 | if (sk->sk_shutdown & SEND_SHUTDOWN) { | |
1071 | send_sig(SIGPIPE, current, 0); | |
1072 | return -EPIPE; | |
1073 | } | |
1074 | ||
1075 | if (rose->neighbour == NULL || rose->device == NULL) | |
1076 | return -ENETUNREACH; | |
1077 | ||
1078 | if (usrose != NULL) { | |
1079 | if (msg->msg_namelen != sizeof(struct sockaddr_rose) && msg->msg_namelen != sizeof(struct full_sockaddr_rose)) | |
1080 | return -EINVAL; | |
1081 | memset(&srose, 0, sizeof(struct full_sockaddr_rose)); | |
1082 | memcpy(&srose, usrose, msg->msg_namelen); | |
1083 | if (rosecmp(&rose->dest_addr, &srose.srose_addr) != 0 || | |
1084 | ax25cmp(&rose->dest_call, &srose.srose_call) != 0) | |
1085 | return -EISCONN; | |
1086 | if (srose.srose_ndigis != rose->dest_ndigis) | |
1087 | return -EISCONN; | |
1088 | if (srose.srose_ndigis == rose->dest_ndigis) { | |
1089 | for (n = 0 ; n < srose.srose_ndigis ; n++) | |
1090 | if (ax25cmp(&rose->dest_digis[n], | |
1091 | &srose.srose_digis[n])) | |
1092 | return -EISCONN; | |
1093 | } | |
1094 | if (srose.srose_family != AF_ROSE) | |
1095 | return -EINVAL; | |
1096 | } else { | |
1097 | if (sk->sk_state != TCP_ESTABLISHED) | |
1098 | return -ENOTCONN; | |
1099 | ||
1100 | srose.srose_family = AF_ROSE; | |
1101 | srose.srose_addr = rose->dest_addr; | |
1102 | srose.srose_call = rose->dest_call; | |
1103 | srose.srose_ndigis = rose->dest_ndigis; | |
1104 | for (n = 0 ; n < rose->dest_ndigis ; n++) | |
1105 | srose.srose_digis[n] = rose->dest_digis[n]; | |
1106 | } | |
1107 | ||
1da177e4 | 1108 | /* Build a packet */ |
83e0bbcb AC |
1109 | /* Sanity check the packet size */ |
1110 | if (len > 65535) | |
1111 | return -EMSGSIZE; | |
1112 | ||
1da177e4 LT |
1113 | size = len + AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN; |
1114 | ||
1115 | if ((skb = sock_alloc_send_skb(sk, size, msg->msg_flags & MSG_DONTWAIT, &err)) == NULL) | |
1116 | return err; | |
1117 | ||
1118 | skb_reserve(skb, AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN); | |
1119 | ||
1120 | /* | |
1121 | * Put the data on the end | |
1122 | */ | |
1da177e4 | 1123 | |
eeeb0374 ACM |
1124 | skb_reset_transport_header(skb); |
1125 | skb_put(skb, len); | |
1da177e4 | 1126 | |
6ce8e9ce | 1127 | err = memcpy_from_msg(skb_transport_header(skb), msg, len); |
1da177e4 LT |
1128 | if (err) { |
1129 | kfree_skb(skb); | |
1130 | return err; | |
1131 | } | |
1132 | ||
1133 | /* | |
1134 | * If the Q BIT Include socket option is in force, the first | |
1135 | * byte of the user data is the logical value of the Q Bit. | |
1136 | */ | |
1137 | if (rose->qbitincl) { | |
1138 | qbit = skb->data[0]; | |
1139 | skb_pull(skb, 1); | |
1140 | } | |
1141 | ||
1142 | /* | |
1143 | * Push down the ROSE header | |
1144 | */ | |
1145 | asmptr = skb_push(skb, ROSE_MIN_LEN); | |
1146 | ||
1da177e4 LT |
1147 | /* Build a ROSE Network header */ |
1148 | asmptr[0] = ((rose->lci >> 8) & 0x0F) | ROSE_GFI; | |
1149 | asmptr[1] = (rose->lci >> 0) & 0xFF; | |
1150 | asmptr[2] = ROSE_DATA; | |
1151 | ||
1152 | if (qbit) | |
1153 | asmptr[0] |= ROSE_Q_BIT; | |
1154 | ||
1da177e4 LT |
1155 | if (sk->sk_state != TCP_ESTABLISHED) { |
1156 | kfree_skb(skb); | |
1157 | return -ENOTCONN; | |
1158 | } | |
1159 | ||
1160 | #ifdef M_BIT | |
1161 | #define ROSE_PACLEN (256-ROSE_MIN_LEN) | |
1162 | if (skb->len - ROSE_MIN_LEN > ROSE_PACLEN) { | |
1163 | unsigned char header[ROSE_MIN_LEN]; | |
1164 | struct sk_buff *skbn; | |
1165 | int frontlen; | |
1166 | int lg; | |
1167 | ||
1168 | /* Save a copy of the Header */ | |
d626f62b | 1169 | skb_copy_from_linear_data(skb, header, ROSE_MIN_LEN); |
1da177e4 LT |
1170 | skb_pull(skb, ROSE_MIN_LEN); |
1171 | ||
1172 | frontlen = skb_headroom(skb); | |
1173 | ||
1174 | while (skb->len > 0) { | |
1175 | if ((skbn = sock_alloc_send_skb(sk, frontlen + ROSE_PACLEN, 0, &err)) == NULL) { | |
1176 | kfree_skb(skb); | |
1177 | return err; | |
1178 | } | |
1179 | ||
1180 | skbn->sk = sk; | |
1181 | skbn->free = 1; | |
1182 | skbn->arp = 1; | |
1183 | ||
1184 | skb_reserve(skbn, frontlen); | |
1185 | ||
1186 | lg = (ROSE_PACLEN > skb->len) ? skb->len : ROSE_PACLEN; | |
1187 | ||
1188 | /* Copy the user data */ | |
d626f62b | 1189 | skb_copy_from_linear_data(skb, skb_put(skbn, lg), lg); |
1da177e4 LT |
1190 | skb_pull(skb, lg); |
1191 | ||
1192 | /* Duplicate the Header */ | |
1193 | skb_push(skbn, ROSE_MIN_LEN); | |
27d7ff46 | 1194 | skb_copy_to_linear_data(skbn, header, ROSE_MIN_LEN); |
1da177e4 LT |
1195 | |
1196 | if (skb->len > 0) | |
1197 | skbn->data[2] |= M_BIT; | |
1198 | ||
1199 | skb_queue_tail(&sk->sk_write_queue, skbn); /* Throw it on the queue */ | |
1200 | } | |
1201 | ||
1202 | skb->free = 1; | |
1203 | kfree_skb(skb); | |
1204 | } else { | |
1205 | skb_queue_tail(&sk->sk_write_queue, skb); /* Throw it on the queue */ | |
1206 | } | |
1207 | #else | |
1208 | skb_queue_tail(&sk->sk_write_queue, skb); /* Shove it onto the queue */ | |
1209 | #endif | |
1210 | ||
1211 | rose_kick(sk); | |
1212 | ||
1213 | return len; | |
1214 | } | |
1215 | ||
1216 | ||
1b784140 YX |
1217 | static int rose_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, |
1218 | int flags) | |
1da177e4 LT |
1219 | { |
1220 | struct sock *sk = sock->sk; | |
1221 | struct rose_sock *rose = rose_sk(sk); | |
1da177e4 LT |
1222 | size_t copied; |
1223 | unsigned char *asmptr; | |
1224 | struct sk_buff *skb; | |
1225 | int n, er, qbit; | |
1226 | ||
1227 | /* | |
1228 | * This works for seqpacket too. The receiver has ordered the queue for | |
1229 | * us! We do one quick check first though | |
1230 | */ | |
1231 | if (sk->sk_state != TCP_ESTABLISHED) | |
1232 | return -ENOTCONN; | |
1233 | ||
1234 | /* Now we can treat all alike */ | |
1235 | if ((skb = skb_recv_datagram(sk, flags & ~MSG_DONTWAIT, flags & MSG_DONTWAIT, &er)) == NULL) | |
1236 | return er; | |
1237 | ||
1238 | qbit = (skb->data[0] & ROSE_Q_BIT) == ROSE_Q_BIT; | |
1239 | ||
1240 | skb_pull(skb, ROSE_MIN_LEN); | |
1241 | ||
1242 | if (rose->qbitincl) { | |
1243 | asmptr = skb_push(skb, 1); | |
1244 | *asmptr = qbit; | |
1245 | } | |
1246 | ||
badff6d0 | 1247 | skb_reset_transport_header(skb); |
1da177e4 LT |
1248 | copied = skb->len; |
1249 | ||
1250 | if (copied > size) { | |
1251 | copied = size; | |
1252 | msg->msg_flags |= MSG_TRUNC; | |
1253 | } | |
1254 | ||
51f3d02b | 1255 | skb_copy_datagram_msg(skb, 0, msg, copied); |
1da177e4 | 1256 | |
f3d33426 HFS |
1257 | if (msg->msg_name) { |
1258 | struct sockaddr_rose *srose; | |
342dfc30 SH |
1259 | DECLARE_SOCKADDR(struct full_sockaddr_rose *, full_srose, |
1260 | msg->msg_name); | |
f3d33426 HFS |
1261 | |
1262 | memset(msg->msg_name, 0, sizeof(struct full_sockaddr_rose)); | |
1263 | srose = msg->msg_name; | |
1da177e4 LT |
1264 | srose->srose_family = AF_ROSE; |
1265 | srose->srose_addr = rose->dest_addr; | |
1266 | srose->srose_call = rose->dest_call; | |
1267 | srose->srose_ndigis = rose->dest_ndigis; | |
f81152e3 FW |
1268 | for (n = 0 ; n < rose->dest_ndigis ; n++) |
1269 | full_srose->srose_digis[n] = rose->dest_digis[n]; | |
1270 | msg->msg_namelen = sizeof(struct full_sockaddr_rose); | |
1da177e4 LT |
1271 | } |
1272 | ||
1273 | skb_free_datagram(sk, skb); | |
1274 | ||
1275 | return copied; | |
1276 | } | |
1277 | ||
1278 | ||
1279 | static int rose_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) | |
1280 | { | |
1281 | struct sock *sk = sock->sk; | |
1282 | struct rose_sock *rose = rose_sk(sk); | |
1283 | void __user *argp = (void __user *)arg; | |
1284 | ||
1285 | switch (cmd) { | |
1286 | case TIOCOUTQ: { | |
1287 | long amount; | |
31e6d363 ED |
1288 | |
1289 | amount = sk->sk_sndbuf - sk_wmem_alloc_get(sk); | |
1da177e4 LT |
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 | ||
1da177e4 LT |
1304 | case SIOCGIFADDR: |
1305 | case SIOCSIFADDR: | |
1306 | case SIOCGIFDSTADDR: | |
1307 | case SIOCSIFDSTADDR: | |
1308 | case SIOCGIFBRDADDR: | |
1309 | case SIOCSIFBRDADDR: | |
1310 | case SIOCGIFNETMASK: | |
1311 | case SIOCSIFNETMASK: | |
1312 | case SIOCGIFMETRIC: | |
1313 | case SIOCSIFMETRIC: | |
1314 | return -EINVAL; | |
1315 | ||
1316 | case SIOCADDRT: | |
1317 | case SIOCDELRT: | |
1318 | case SIOCRSCLRRT: | |
1319 | if (!capable(CAP_NET_ADMIN)) | |
1320 | return -EPERM; | |
1321 | return rose_rt_ioctl(cmd, argp); | |
1322 | ||
1323 | case SIOCRSGCAUSE: { | |
1324 | struct rose_cause_struct rose_cause; | |
1325 | rose_cause.cause = rose->cause; | |
1326 | rose_cause.diagnostic = rose->diagnostic; | |
1327 | return copy_to_user(argp, &rose_cause, sizeof(struct rose_cause_struct)) ? -EFAULT : 0; | |
1328 | } | |
1329 | ||
1330 | case SIOCRSSCAUSE: { | |
1331 | struct rose_cause_struct rose_cause; | |
1332 | if (copy_from_user(&rose_cause, argp, sizeof(struct rose_cause_struct))) | |
1333 | return -EFAULT; | |
1334 | rose->cause = rose_cause.cause; | |
1335 | rose->diagnostic = rose_cause.diagnostic; | |
1336 | return 0; | |
1337 | } | |
1338 | ||
1339 | case SIOCRSSL2CALL: | |
1340 | if (!capable(CAP_NET_ADMIN)) return -EPERM; | |
1341 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
1342 | ax25_listen_release(&rose_callsign, NULL); | |
1343 | if (copy_from_user(&rose_callsign, argp, sizeof(ax25_address))) | |
1344 | return -EFAULT; | |
1345 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
81dcd169 RB |
1346 | return ax25_listen_register(&rose_callsign, NULL); |
1347 | ||
1da177e4 LT |
1348 | return 0; |
1349 | ||
1350 | case SIOCRSGL2CALL: | |
1351 | return copy_to_user(argp, &rose_callsign, sizeof(ax25_address)) ? -EFAULT : 0; | |
1352 | ||
1353 | case SIOCRSACCEPT: | |
1354 | if (rose->state == ROSE_STATE_5) { | |
1355 | rose_write_internal(sk, ROSE_CALL_ACCEPTED); | |
1356 | rose_start_idletimer(sk); | |
1357 | rose->condition = 0x00; | |
1358 | rose->vs = 0; | |
1359 | rose->va = 0; | |
1360 | rose->vr = 0; | |
1361 | rose->vl = 0; | |
1362 | rose->state = ROSE_STATE_3; | |
1363 | } | |
1364 | return 0; | |
1365 | ||
1366 | default: | |
b5e5fa5e | 1367 | return -ENOIOCTLCMD; |
1da177e4 LT |
1368 | } |
1369 | ||
1370 | return 0; | |
1371 | } | |
1372 | ||
1373 | #ifdef CONFIG_PROC_FS | |
1374 | static void *rose_info_start(struct seq_file *seq, loff_t *pos) | |
95b7d924 | 1375 | __acquires(rose_list_lock) |
1da177e4 | 1376 | { |
1da177e4 | 1377 | spin_lock_bh(&rose_list_lock); |
b999748a | 1378 | return seq_hlist_start_head(&rose_list, *pos); |
1da177e4 LT |
1379 | } |
1380 | ||
1381 | static void *rose_info_next(struct seq_file *seq, void *v, loff_t *pos) | |
1382 | { | |
b999748a | 1383 | return seq_hlist_next(v, &rose_list, pos); |
1da177e4 | 1384 | } |
3dcf7c5e | 1385 | |
1da177e4 | 1386 | static void rose_info_stop(struct seq_file *seq, void *v) |
95b7d924 | 1387 | __releases(rose_list_lock) |
1da177e4 LT |
1388 | { |
1389 | spin_unlock_bh(&rose_list_lock); | |
1390 | } | |
1391 | ||
1392 | static int rose_info_show(struct seq_file *seq, void *v) | |
1393 | { | |
dcf777f6 | 1394 | char buf[11], rsbuf[11]; |
f75268cd | 1395 | |
1da177e4 | 1396 | if (v == SEQ_START_TOKEN) |
3dcf7c5e | 1397 | seq_puts(seq, |
1da177e4 LT |
1398 | "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"); |
1399 | ||
1400 | else { | |
b999748a | 1401 | struct sock *s = sk_entry(v); |
1da177e4 LT |
1402 | struct rose_sock *rose = rose_sk(s); |
1403 | const char *devname, *callsign; | |
1404 | const struct net_device *dev = rose->device; | |
1405 | ||
1406 | if (!dev) | |
1407 | devname = "???"; | |
1408 | else | |
1409 | devname = dev->name; | |
3dcf7c5e | 1410 | |
1da177e4 | 1411 | seq_printf(seq, "%-10s %-9s ", |
dcf777f6 RB |
1412 | rose2asc(rsbuf, &rose->dest_addr), |
1413 | ax2asc(buf, &rose->dest_call)); | |
1da177e4 LT |
1414 | |
1415 | if (ax25cmp(&rose->source_call, &null_ax25_address) == 0) | |
1416 | callsign = "??????-?"; | |
1417 | else | |
f75268cd | 1418 | callsign = ax2asc(buf, &rose->source_call); |
1da177e4 LT |
1419 | |
1420 | seq_printf(seq, | |
1421 | "%-10s %-9s %-5s %3.3X %05d %d %d %d %d %3lu %3lu %3lu %3lu %3lu %3lu/%03lu %5d %5d %ld\n", | |
dcf777f6 | 1422 | rose2asc(rsbuf, &rose->source_addr), |
1da177e4 LT |
1423 | callsign, |
1424 | devname, | |
1425 | rose->lci & 0x0FFF, | |
1426 | (rose->neighbour) ? rose->neighbour->number : 0, | |
1427 | rose->state, | |
1428 | rose->vs, | |
1429 | rose->vr, | |
1430 | rose->va, | |
1431 | ax25_display_timer(&rose->timer) / HZ, | |
1432 | rose->t1 / HZ, | |
1433 | rose->t2 / HZ, | |
1434 | rose->t3 / HZ, | |
1435 | rose->hb / HZ, | |
1436 | ax25_display_timer(&rose->idletimer) / (60 * HZ), | |
1437 | rose->idle / (60 * HZ), | |
31e6d363 ED |
1438 | sk_wmem_alloc_get(s), |
1439 | sk_rmem_alloc_get(s), | |
1da177e4 LT |
1440 | s->sk_socket ? SOCK_INODE(s->sk_socket)->i_ino : 0L); |
1441 | } | |
1442 | ||
1443 | return 0; | |
1444 | } | |
1445 | ||
56b3d975 | 1446 | static const struct seq_operations rose_info_seqops = { |
1da177e4 LT |
1447 | .start = rose_info_start, |
1448 | .next = rose_info_next, | |
1449 | .stop = rose_info_stop, | |
1450 | .show = rose_info_show, | |
1451 | }; | |
1da177e4 LT |
1452 | #endif /* CONFIG_PROC_FS */ |
1453 | ||
ec1b4cf7 | 1454 | static const struct net_proto_family rose_family_ops = { |
1da177e4 LT |
1455 | .family = PF_ROSE, |
1456 | .create = rose_create, | |
1457 | .owner = THIS_MODULE, | |
1458 | }; | |
1459 | ||
5708e868 | 1460 | static const struct proto_ops rose_proto_ops = { |
1da177e4 LT |
1461 | .family = PF_ROSE, |
1462 | .owner = THIS_MODULE, | |
1463 | .release = rose_release, | |
1464 | .bind = rose_bind, | |
1465 | .connect = rose_connect, | |
1466 | .socketpair = sock_no_socketpair, | |
1467 | .accept = rose_accept, | |
1468 | .getname = rose_getname, | |
a11e1d43 | 1469 | .poll = datagram_poll, |
1da177e4 | 1470 | .ioctl = rose_ioctl, |
c7cbdbf2 | 1471 | .gettstamp = sock_gettstamp, |
1da177e4 LT |
1472 | .listen = rose_listen, |
1473 | .shutdown = sock_no_shutdown, | |
1474 | .setsockopt = rose_setsockopt, | |
1475 | .getsockopt = rose_getsockopt, | |
1476 | .sendmsg = rose_sendmsg, | |
1477 | .recvmsg = rose_recvmsg, | |
1478 | .mmap = sock_no_mmap, | |
1479 | .sendpage = sock_no_sendpage, | |
1480 | }; | |
1481 | ||
1482 | static struct notifier_block rose_dev_notifier = { | |
1483 | .notifier_call = rose_device_event, | |
1484 | }; | |
1485 | ||
1486 | static struct net_device **dev_rose; | |
1487 | ||
8d5cf596 RB |
1488 | static struct ax25_protocol rose_pid = { |
1489 | .pid = AX25_P_ROSE, | |
1490 | .func = rose_route_frame | |
1491 | }; | |
1492 | ||
a4282717 RB |
1493 | static struct ax25_linkfail rose_linkfail_notifier = { |
1494 | .func = rose_link_failed | |
1495 | }; | |
1496 | ||
1da177e4 LT |
1497 | static int __init rose_proto_init(void) |
1498 | { | |
1499 | int i; | |
a83cd2cc | 1500 | int rc; |
1da177e4 | 1501 | |
a83cd2cc AD |
1502 | if (rose_ndevs > 0x7FFFFFFF/sizeof(struct net_device *)) { |
1503 | printk(KERN_ERR "ROSE: rose_proto_init - rose_ndevs parameter to large\n"); | |
1504 | rc = -EINVAL; | |
1505 | goto out; | |
1506 | } | |
1507 | ||
1508 | rc = proto_register(&rose_proto, 0); | |
1da177e4 LT |
1509 | if (rc != 0) |
1510 | goto out; | |
1511 | ||
1512 | rose_callsign = null_ax25_address; | |
1513 | ||
6396bb22 KC |
1514 | dev_rose = kcalloc(rose_ndevs, sizeof(struct net_device *), |
1515 | GFP_KERNEL); | |
1da177e4 LT |
1516 | if (dev_rose == NULL) { |
1517 | printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate device structure\n"); | |
a83cd2cc AD |
1518 | rc = -ENOMEM; |
1519 | goto out_proto_unregister; | |
1da177e4 LT |
1520 | } |
1521 | ||
1da177e4 LT |
1522 | for (i = 0; i < rose_ndevs; i++) { |
1523 | struct net_device *dev; | |
1524 | char name[IFNAMSIZ]; | |
1525 | ||
1526 | sprintf(name, "rose%d", i); | |
c835a677 | 1527 | dev = alloc_netdev(0, name, NET_NAME_UNKNOWN, rose_setup); |
1da177e4 LT |
1528 | if (!dev) { |
1529 | printk(KERN_ERR "ROSE: rose_proto_init - unable to allocate memory\n"); | |
70ff3b66 | 1530 | rc = -ENOMEM; |
1da177e4 LT |
1531 | goto fail; |
1532 | } | |
70ff3b66 AD |
1533 | rc = register_netdev(dev); |
1534 | if (rc) { | |
520d1b83 | 1535 | printk(KERN_ERR "ROSE: netdevice registration failed\n"); |
1da177e4 LT |
1536 | free_netdev(dev); |
1537 | goto fail; | |
1538 | } | |
c773e847 | 1539 | rose_set_lockdep_key(dev); |
1da177e4 LT |
1540 | dev_rose[i] = dev; |
1541 | } | |
1542 | ||
1543 | sock_register(&rose_family_ops); | |
1544 | register_netdevice_notifier(&rose_dev_notifier); | |
1da177e4 | 1545 | |
8d5cf596 | 1546 | ax25_register_pid(&rose_pid); |
a4282717 | 1547 | ax25_linkfail_register(&rose_linkfail_notifier); |
1da177e4 LT |
1548 | |
1549 | #ifdef CONFIG_SYSCTL | |
1550 | rose_register_sysctl(); | |
1551 | #endif | |
1552 | rose_loopback_init(); | |
1553 | ||
1554 | rose_add_loopback_neigh(); | |
1555 | ||
fddda2b7 CH |
1556 | proc_create_seq("rose", 0444, init_net.proc_net, &rose_info_seqops); |
1557 | proc_create_seq("rose_neigh", 0444, init_net.proc_net, | |
1558 | &rose_neigh_seqops); | |
1559 | proc_create_seq("rose_nodes", 0444, init_net.proc_net, | |
1560 | &rose_node_seqops); | |
1561 | proc_create_seq("rose_routes", 0444, init_net.proc_net, | |
1562 | &rose_route_seqops); | |
1da177e4 LT |
1563 | out: |
1564 | return rc; | |
1565 | fail: | |
1566 | while (--i >= 0) { | |
1567 | unregister_netdev(dev_rose[i]); | |
1568 | free_netdev(dev_rose[i]); | |
1569 | } | |
1570 | kfree(dev_rose); | |
a83cd2cc | 1571 | out_proto_unregister: |
1da177e4 | 1572 | proto_unregister(&rose_proto); |
70ff3b66 | 1573 | goto out; |
1da177e4 LT |
1574 | } |
1575 | module_init(rose_proto_init); | |
1576 | ||
1577 | module_param(rose_ndevs, int, 0); | |
1578 | MODULE_PARM_DESC(rose_ndevs, "number of ROSE devices"); | |
1579 | ||
1580 | MODULE_AUTHOR("Jonathan Naylor G4KLX <g4klx@g4klx.demon.co.uk>"); | |
1581 | MODULE_DESCRIPTION("The amateur radio ROSE network layer protocol"); | |
1582 | MODULE_LICENSE("GPL"); | |
1583 | MODULE_ALIAS_NETPROTO(PF_ROSE); | |
1584 | ||
1585 | static void __exit rose_exit(void) | |
1586 | { | |
1587 | int i; | |
1588 | ||
ece31ffd G |
1589 | remove_proc_entry("rose", init_net.proc_net); |
1590 | remove_proc_entry("rose_neigh", init_net.proc_net); | |
1591 | remove_proc_entry("rose_nodes", init_net.proc_net); | |
1592 | remove_proc_entry("rose_routes", init_net.proc_net); | |
1da177e4 LT |
1593 | rose_loopback_clear(); |
1594 | ||
1595 | rose_rt_free(); | |
1596 | ||
1597 | ax25_protocol_release(AX25_P_ROSE); | |
a4282717 | 1598 | ax25_linkfail_release(&rose_linkfail_notifier); |
1da177e4 LT |
1599 | |
1600 | if (ax25cmp(&rose_callsign, &null_ax25_address) != 0) | |
1601 | ax25_listen_release(&rose_callsign, NULL); | |
1602 | ||
1603 | #ifdef CONFIG_SYSCTL | |
1604 | rose_unregister_sysctl(); | |
1605 | #endif | |
1606 | unregister_netdevice_notifier(&rose_dev_notifier); | |
1607 | ||
1608 | sock_unregister(PF_ROSE); | |
1609 | ||
1610 | for (i = 0; i < rose_ndevs; i++) { | |
1611 | struct net_device *dev = dev_rose[i]; | |
1612 | ||
1613 | if (dev) { | |
1614 | unregister_netdev(dev); | |
1615 | free_netdev(dev); | |
1616 | } | |
1617 | } | |
1618 | ||
1619 | kfree(dev_rose); | |
1620 | proto_unregister(&rose_proto); | |
1621 | } | |
1622 | ||
1623 | module_exit(rose_exit); |