Commit | Line | Data |
---|---|---|
8e87d142 | 1 | /* |
1da177e4 LT |
2 | BlueZ - Bluetooth protocol stack for Linux |
3 | Copyright (C) 2000-2001 Qualcomm Incorporated | |
4 | ||
5 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License version 2 as | |
9 | published by the Free Software Foundation; | |
10 | ||
11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
12 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
13 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. | |
14 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY | |
8e87d142 YH |
15 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
16 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
17 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
1da177e4 LT |
18 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
19 | ||
8e87d142 YH |
20 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
21 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS | |
1da177e4 LT |
22 | SOFTWARE IS DISCLAIMED. |
23 | */ | |
24 | ||
25 | /* Bluetooth HCI sockets. */ | |
26 | ||
8c520a59 | 27 | #include <linux/export.h> |
1da177e4 LT |
28 | #include <asm/unaligned.h> |
29 | ||
30 | #include <net/bluetooth/bluetooth.h> | |
31 | #include <net/bluetooth/hci_core.h> | |
cd82e61c | 32 | #include <net/bluetooth/hci_mon.h> |
1da177e4 | 33 | |
cd82e61c MH |
34 | static atomic_t monitor_promisc = ATOMIC_INIT(0); |
35 | ||
1da177e4 LT |
36 | /* ----- HCI socket interface ----- */ |
37 | ||
38 | static inline int hci_test_bit(int nr, void *addr) | |
39 | { | |
40 | return *((__u32 *) addr + (nr >> 5)) & ((__u32) 1 << (nr & 31)); | |
41 | } | |
42 | ||
43 | /* Security filter */ | |
44 | static struct hci_sec_filter hci_sec_filter = { | |
45 | /* Packet types */ | |
46 | 0x10, | |
47 | /* Events */ | |
dd7f5527 | 48 | { 0x1000d9fe, 0x0000b00c }, |
1da177e4 LT |
49 | /* Commands */ |
50 | { | |
51 | { 0x0 }, | |
52 | /* OGF_LINK_CTL */ | |
7c631a67 | 53 | { 0xbe000006, 0x00000001, 0x00000000, 0x00 }, |
1da177e4 | 54 | /* OGF_LINK_POLICY */ |
7c631a67 | 55 | { 0x00005200, 0x00000000, 0x00000000, 0x00 }, |
1da177e4 | 56 | /* OGF_HOST_CTL */ |
7c631a67 | 57 | { 0xaab00200, 0x2b402aaa, 0x05220154, 0x00 }, |
1da177e4 | 58 | /* OGF_INFO_PARAM */ |
7c631a67 | 59 | { 0x000002be, 0x00000000, 0x00000000, 0x00 }, |
1da177e4 | 60 | /* OGF_STATUS_PARAM */ |
7c631a67 | 61 | { 0x000000ea, 0x00000000, 0x00000000, 0x00 } |
1da177e4 LT |
62 | } |
63 | }; | |
64 | ||
65 | static struct bt_sock_list hci_sk_list = { | |
d5fb2962 | 66 | .lock = __RW_LOCK_UNLOCKED(hci_sk_list.lock) |
1da177e4 LT |
67 | }; |
68 | ||
69 | /* Send frame to RAW socket */ | |
470fe1b5 | 70 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb) |
1da177e4 LT |
71 | { |
72 | struct sock *sk; | |
73 | struct hlist_node *node; | |
e0edf373 | 74 | struct sk_buff *skb_copy = NULL; |
1da177e4 LT |
75 | |
76 | BT_DBG("hdev %p len %d", hdev, skb->len); | |
77 | ||
78 | read_lock(&hci_sk_list.lock); | |
470fe1b5 | 79 | |
1da177e4 LT |
80 | sk_for_each(sk, node, &hci_sk_list.head) { |
81 | struct hci_filter *flt; | |
82 | struct sk_buff *nskb; | |
83 | ||
84 | if (sk->sk_state != BT_BOUND || hci_pi(sk)->hdev != hdev) | |
85 | continue; | |
86 | ||
87 | /* Don't send frame to the socket it came from */ | |
88 | if (skb->sk == sk) | |
89 | continue; | |
90 | ||
470fe1b5 | 91 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) |
a40c406c JH |
92 | continue; |
93 | ||
1da177e4 LT |
94 | /* Apply filter */ |
95 | flt = &hci_pi(sk)->filter; | |
96 | ||
0d48d939 | 97 | if (!test_bit((bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) ? |
3bb3c755 GP |
98 | 0 : (bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS), |
99 | &flt->type_mask)) | |
1da177e4 LT |
100 | continue; |
101 | ||
0d48d939 | 102 | if (bt_cb(skb)->pkt_type == HCI_EVENT_PKT) { |
fc5fef61 | 103 | int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS); |
1da177e4 LT |
104 | |
105 | if (!hci_test_bit(evt, &flt->event_mask)) | |
106 | continue; | |
107 | ||
4498c80d DM |
108 | if (flt->opcode && |
109 | ((evt == HCI_EV_CMD_COMPLETE && | |
110 | flt->opcode != | |
905f3ed6 | 111 | get_unaligned((__le16 *)(skb->data + 3))) || |
4498c80d DM |
112 | (evt == HCI_EV_CMD_STATUS && |
113 | flt->opcode != | |
905f3ed6 | 114 | get_unaligned((__le16 *)(skb->data + 4))))) |
1da177e4 LT |
115 | continue; |
116 | } | |
117 | ||
e0edf373 MH |
118 | if (!skb_copy) { |
119 | /* Create a private copy with headroom */ | |
120 | skb_copy = __pskb_copy(skb, 1, GFP_ATOMIC); | |
121 | if (!skb_copy) | |
122 | continue; | |
123 | ||
124 | /* Put type byte before the data */ | |
125 | memcpy(skb_push(skb_copy, 1), &bt_cb(skb)->pkt_type, 1); | |
126 | } | |
127 | ||
128 | nskb = skb_clone(skb_copy, GFP_ATOMIC); | |
70f23020 | 129 | if (!nskb) |
1da177e4 LT |
130 | continue; |
131 | ||
470fe1b5 MH |
132 | if (sock_queue_rcv_skb(sk, nskb)) |
133 | kfree_skb(nskb); | |
134 | } | |
135 | ||
136 | read_unlock(&hci_sk_list.lock); | |
e0edf373 MH |
137 | |
138 | kfree_skb(skb_copy); | |
470fe1b5 MH |
139 | } |
140 | ||
141 | /* Send frame to control socket */ | |
142 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk) | |
143 | { | |
144 | struct sock *sk; | |
145 | struct hlist_node *node; | |
146 | ||
147 | BT_DBG("len %d", skb->len); | |
148 | ||
149 | read_lock(&hci_sk_list.lock); | |
150 | ||
151 | sk_for_each(sk, node, &hci_sk_list.head) { | |
152 | struct sk_buff *nskb; | |
153 | ||
154 | /* Skip the original socket */ | |
155 | if (sk == skip_sk) | |
156 | continue; | |
157 | ||
158 | if (sk->sk_state != BT_BOUND) | |
159 | continue; | |
160 | ||
161 | if (hci_pi(sk)->channel != HCI_CHANNEL_CONTROL) | |
162 | continue; | |
163 | ||
164 | nskb = skb_clone(skb, GFP_ATOMIC); | |
165 | if (!nskb) | |
166 | continue; | |
1da177e4 LT |
167 | |
168 | if (sock_queue_rcv_skb(sk, nskb)) | |
169 | kfree_skb(nskb); | |
170 | } | |
470fe1b5 | 171 | |
1da177e4 LT |
172 | read_unlock(&hci_sk_list.lock); |
173 | } | |
174 | ||
cd82e61c MH |
175 | /* Send frame to monitor socket */ |
176 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb) | |
177 | { | |
178 | struct sock *sk; | |
179 | struct hlist_node *node; | |
180 | struct sk_buff *skb_copy = NULL; | |
181 | __le16 opcode; | |
182 | ||
183 | if (!atomic_read(&monitor_promisc)) | |
184 | return; | |
185 | ||
186 | BT_DBG("hdev %p len %d", hdev, skb->len); | |
187 | ||
188 | switch (bt_cb(skb)->pkt_type) { | |
189 | case HCI_COMMAND_PKT: | |
190 | opcode = __constant_cpu_to_le16(HCI_MON_COMMAND_PKT); | |
191 | break; | |
192 | case HCI_EVENT_PKT: | |
193 | opcode = __constant_cpu_to_le16(HCI_MON_EVENT_PKT); | |
194 | break; | |
195 | case HCI_ACLDATA_PKT: | |
196 | if (bt_cb(skb)->incoming) | |
197 | opcode = __constant_cpu_to_le16(HCI_MON_ACL_RX_PKT); | |
198 | else | |
199 | opcode = __constant_cpu_to_le16(HCI_MON_ACL_TX_PKT); | |
200 | break; | |
201 | case HCI_SCODATA_PKT: | |
202 | if (bt_cb(skb)->incoming) | |
203 | opcode = __constant_cpu_to_le16(HCI_MON_SCO_RX_PKT); | |
204 | else | |
205 | opcode = __constant_cpu_to_le16(HCI_MON_SCO_TX_PKT); | |
206 | break; | |
207 | default: | |
208 | return; | |
209 | } | |
210 | ||
211 | read_lock(&hci_sk_list.lock); | |
212 | ||
213 | sk_for_each(sk, node, &hci_sk_list.head) { | |
214 | struct sk_buff *nskb; | |
215 | ||
216 | if (sk->sk_state != BT_BOUND) | |
217 | continue; | |
218 | ||
219 | if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR) | |
220 | continue; | |
221 | ||
222 | if (!skb_copy) { | |
223 | struct hci_mon_hdr *hdr; | |
224 | ||
225 | /* Create a private copy with headroom */ | |
8fc9ced3 GP |
226 | skb_copy = __pskb_copy(skb, HCI_MON_HDR_SIZE, |
227 | GFP_ATOMIC); | |
cd82e61c MH |
228 | if (!skb_copy) |
229 | continue; | |
230 | ||
231 | /* Put header before the data */ | |
232 | hdr = (void *) skb_push(skb_copy, HCI_MON_HDR_SIZE); | |
233 | hdr->opcode = opcode; | |
234 | hdr->index = cpu_to_le16(hdev->id); | |
235 | hdr->len = cpu_to_le16(skb->len); | |
236 | } | |
237 | ||
238 | nskb = skb_clone(skb_copy, GFP_ATOMIC); | |
239 | if (!nskb) | |
240 | continue; | |
241 | ||
242 | if (sock_queue_rcv_skb(sk, nskb)) | |
243 | kfree_skb(nskb); | |
244 | } | |
245 | ||
246 | read_unlock(&hci_sk_list.lock); | |
247 | ||
248 | kfree_skb(skb_copy); | |
249 | } | |
250 | ||
251 | static void send_monitor_event(struct sk_buff *skb) | |
252 | { | |
253 | struct sock *sk; | |
254 | struct hlist_node *node; | |
255 | ||
256 | BT_DBG("len %d", skb->len); | |
257 | ||
258 | read_lock(&hci_sk_list.lock); | |
259 | ||
260 | sk_for_each(sk, node, &hci_sk_list.head) { | |
261 | struct sk_buff *nskb; | |
262 | ||
263 | if (sk->sk_state != BT_BOUND) | |
264 | continue; | |
265 | ||
266 | if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR) | |
267 | continue; | |
268 | ||
269 | nskb = skb_clone(skb, GFP_ATOMIC); | |
270 | if (!nskb) | |
271 | continue; | |
272 | ||
273 | if (sock_queue_rcv_skb(sk, nskb)) | |
274 | kfree_skb(nskb); | |
275 | } | |
276 | ||
277 | read_unlock(&hci_sk_list.lock); | |
278 | } | |
279 | ||
280 | static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event) | |
281 | { | |
282 | struct hci_mon_hdr *hdr; | |
283 | struct hci_mon_new_index *ni; | |
284 | struct sk_buff *skb; | |
285 | __le16 opcode; | |
286 | ||
287 | switch (event) { | |
288 | case HCI_DEV_REG: | |
289 | skb = bt_skb_alloc(HCI_MON_NEW_INDEX_SIZE, GFP_ATOMIC); | |
290 | if (!skb) | |
291 | return NULL; | |
292 | ||
293 | ni = (void *) skb_put(skb, HCI_MON_NEW_INDEX_SIZE); | |
294 | ni->type = hdev->dev_type; | |
295 | ni->bus = hdev->bus; | |
296 | bacpy(&ni->bdaddr, &hdev->bdaddr); | |
297 | memcpy(ni->name, hdev->name, 8); | |
298 | ||
299 | opcode = __constant_cpu_to_le16(HCI_MON_NEW_INDEX); | |
300 | break; | |
301 | ||
302 | case HCI_DEV_UNREG: | |
303 | skb = bt_skb_alloc(0, GFP_ATOMIC); | |
304 | if (!skb) | |
305 | return NULL; | |
306 | ||
307 | opcode = __constant_cpu_to_le16(HCI_MON_DEL_INDEX); | |
308 | break; | |
309 | ||
310 | default: | |
311 | return NULL; | |
312 | } | |
313 | ||
314 | __net_timestamp(skb); | |
315 | ||
316 | hdr = (void *) skb_push(skb, HCI_MON_HDR_SIZE); | |
317 | hdr->opcode = opcode; | |
318 | hdr->index = cpu_to_le16(hdev->id); | |
319 | hdr->len = cpu_to_le16(skb->len - HCI_MON_HDR_SIZE); | |
320 | ||
321 | return skb; | |
322 | } | |
323 | ||
324 | static void send_monitor_replay(struct sock *sk) | |
325 | { | |
326 | struct hci_dev *hdev; | |
327 | ||
328 | read_lock(&hci_dev_list_lock); | |
329 | ||
330 | list_for_each_entry(hdev, &hci_dev_list, list) { | |
331 | struct sk_buff *skb; | |
332 | ||
333 | skb = create_monitor_event(hdev, HCI_DEV_REG); | |
334 | if (!skb) | |
335 | continue; | |
336 | ||
337 | if (sock_queue_rcv_skb(sk, skb)) | |
338 | kfree_skb(skb); | |
339 | } | |
340 | ||
341 | read_unlock(&hci_dev_list_lock); | |
342 | } | |
343 | ||
040030ef MH |
344 | /* Generate internal stack event */ |
345 | static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data) | |
346 | { | |
347 | struct hci_event_hdr *hdr; | |
348 | struct hci_ev_stack_internal *ev; | |
349 | struct sk_buff *skb; | |
350 | ||
351 | skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC); | |
352 | if (!skb) | |
353 | return; | |
354 | ||
355 | hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE); | |
356 | hdr->evt = HCI_EV_STACK_INTERNAL; | |
357 | hdr->plen = sizeof(*ev) + dlen; | |
358 | ||
359 | ev = (void *) skb_put(skb, sizeof(*ev) + dlen); | |
360 | ev->type = type; | |
361 | memcpy(ev->data, data, dlen); | |
362 | ||
363 | bt_cb(skb)->incoming = 1; | |
364 | __net_timestamp(skb); | |
365 | ||
366 | bt_cb(skb)->pkt_type = HCI_EVENT_PKT; | |
367 | skb->dev = (void *) hdev; | |
368 | hci_send_to_sock(hdev, skb); | |
369 | kfree_skb(skb); | |
370 | } | |
371 | ||
372 | void hci_sock_dev_event(struct hci_dev *hdev, int event) | |
373 | { | |
374 | struct hci_ev_si_device ev; | |
375 | ||
376 | BT_DBG("hdev %s event %d", hdev->name, event); | |
377 | ||
cd82e61c MH |
378 | /* Send event to monitor */ |
379 | if (atomic_read(&monitor_promisc)) { | |
380 | struct sk_buff *skb; | |
381 | ||
382 | skb = create_monitor_event(hdev, event); | |
383 | if (skb) { | |
384 | send_monitor_event(skb); | |
385 | kfree_skb(skb); | |
386 | } | |
387 | } | |
388 | ||
040030ef MH |
389 | /* Send event to sockets */ |
390 | ev.event = event; | |
391 | ev.dev_id = hdev->id; | |
392 | hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev); | |
393 | ||
394 | if (event == HCI_DEV_UNREG) { | |
395 | struct sock *sk; | |
396 | struct hlist_node *node; | |
397 | ||
398 | /* Detach sockets from device */ | |
399 | read_lock(&hci_sk_list.lock); | |
400 | sk_for_each(sk, node, &hci_sk_list.head) { | |
401 | bh_lock_sock_nested(sk); | |
402 | if (hci_pi(sk)->hdev == hdev) { | |
403 | hci_pi(sk)->hdev = NULL; | |
404 | sk->sk_err = EPIPE; | |
405 | sk->sk_state = BT_OPEN; | |
406 | sk->sk_state_change(sk); | |
407 | ||
408 | hci_dev_put(hdev); | |
409 | } | |
410 | bh_unlock_sock(sk); | |
411 | } | |
412 | read_unlock(&hci_sk_list.lock); | |
413 | } | |
414 | } | |
415 | ||
1da177e4 LT |
416 | static int hci_sock_release(struct socket *sock) |
417 | { | |
418 | struct sock *sk = sock->sk; | |
7b005bd3 | 419 | struct hci_dev *hdev; |
1da177e4 LT |
420 | |
421 | BT_DBG("sock %p sk %p", sock, sk); | |
422 | ||
423 | if (!sk) | |
424 | return 0; | |
425 | ||
7b005bd3 MH |
426 | hdev = hci_pi(sk)->hdev; |
427 | ||
cd82e61c MH |
428 | if (hci_pi(sk)->channel == HCI_CHANNEL_MONITOR) |
429 | atomic_dec(&monitor_promisc); | |
430 | ||
1da177e4 LT |
431 | bt_sock_unlink(&hci_sk_list, sk); |
432 | ||
433 | if (hdev) { | |
434 | atomic_dec(&hdev->promisc); | |
435 | hci_dev_put(hdev); | |
436 | } | |
437 | ||
438 | sock_orphan(sk); | |
439 | ||
440 | skb_queue_purge(&sk->sk_receive_queue); | |
441 | skb_queue_purge(&sk->sk_write_queue); | |
442 | ||
443 | sock_put(sk); | |
444 | return 0; | |
445 | } | |
446 | ||
b2a66aad | 447 | static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg) |
f0358568 JH |
448 | { |
449 | bdaddr_t bdaddr; | |
5e762444 | 450 | int err; |
f0358568 JH |
451 | |
452 | if (copy_from_user(&bdaddr, arg, sizeof(bdaddr))) | |
453 | return -EFAULT; | |
454 | ||
09fd0de5 | 455 | hci_dev_lock(hdev); |
5e762444 | 456 | |
88c1fe4b | 457 | err = hci_blacklist_add(hdev, &bdaddr, 0); |
5e762444 | 458 | |
09fd0de5 | 459 | hci_dev_unlock(hdev); |
5e762444 AJ |
460 | |
461 | return err; | |
f0358568 JH |
462 | } |
463 | ||
b2a66aad | 464 | static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg) |
f0358568 JH |
465 | { |
466 | bdaddr_t bdaddr; | |
5e762444 | 467 | int err; |
f0358568 JH |
468 | |
469 | if (copy_from_user(&bdaddr, arg, sizeof(bdaddr))) | |
470 | return -EFAULT; | |
471 | ||
09fd0de5 | 472 | hci_dev_lock(hdev); |
5e762444 | 473 | |
88c1fe4b | 474 | err = hci_blacklist_del(hdev, &bdaddr, 0); |
5e762444 | 475 | |
09fd0de5 | 476 | hci_dev_unlock(hdev); |
5e762444 AJ |
477 | |
478 | return err; | |
f0358568 JH |
479 | } |
480 | ||
8e87d142 | 481 | /* Ioctls that require bound socket */ |
6039aa73 GP |
482 | static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, |
483 | unsigned long arg) | |
1da177e4 LT |
484 | { |
485 | struct hci_dev *hdev = hci_pi(sk)->hdev; | |
486 | ||
487 | if (!hdev) | |
488 | return -EBADFD; | |
489 | ||
490 | switch (cmd) { | |
491 | case HCISETRAW: | |
492 | if (!capable(CAP_NET_ADMIN)) | |
493 | return -EACCES; | |
494 | ||
495 | if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) | |
496 | return -EPERM; | |
497 | ||
498 | if (arg) | |
499 | set_bit(HCI_RAW, &hdev->flags); | |
500 | else | |
501 | clear_bit(HCI_RAW, &hdev->flags); | |
502 | ||
503 | return 0; | |
504 | ||
1da177e4 | 505 | case HCIGETCONNINFO: |
40be492f MH |
506 | return hci_get_conn_info(hdev, (void __user *) arg); |
507 | ||
508 | case HCIGETAUTHINFO: | |
509 | return hci_get_auth_info(hdev, (void __user *) arg); | |
1da177e4 | 510 | |
f0358568 JH |
511 | case HCIBLOCKADDR: |
512 | if (!capable(CAP_NET_ADMIN)) | |
513 | return -EACCES; | |
b2a66aad | 514 | return hci_sock_blacklist_add(hdev, (void __user *) arg); |
f0358568 JH |
515 | |
516 | case HCIUNBLOCKADDR: | |
517 | if (!capable(CAP_NET_ADMIN)) | |
518 | return -EACCES; | |
b2a66aad | 519 | return hci_sock_blacklist_del(hdev, (void __user *) arg); |
f0358568 | 520 | |
1da177e4 LT |
521 | default: |
522 | if (hdev->ioctl) | |
523 | return hdev->ioctl(hdev, cmd, arg); | |
524 | return -EINVAL; | |
525 | } | |
526 | } | |
527 | ||
8fc9ced3 GP |
528 | static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, |
529 | unsigned long arg) | |
1da177e4 LT |
530 | { |
531 | struct sock *sk = sock->sk; | |
40be492f | 532 | void __user *argp = (void __user *) arg; |
1da177e4 LT |
533 | int err; |
534 | ||
535 | BT_DBG("cmd %x arg %lx", cmd, arg); | |
536 | ||
537 | switch (cmd) { | |
538 | case HCIGETDEVLIST: | |
539 | return hci_get_dev_list(argp); | |
540 | ||
541 | case HCIGETDEVINFO: | |
542 | return hci_get_dev_info(argp); | |
543 | ||
544 | case HCIGETCONNLIST: | |
545 | return hci_get_conn_list(argp); | |
546 | ||
547 | case HCIDEVUP: | |
548 | if (!capable(CAP_NET_ADMIN)) | |
549 | return -EACCES; | |
550 | return hci_dev_open(arg); | |
551 | ||
552 | case HCIDEVDOWN: | |
553 | if (!capable(CAP_NET_ADMIN)) | |
554 | return -EACCES; | |
555 | return hci_dev_close(arg); | |
556 | ||
557 | case HCIDEVRESET: | |
558 | if (!capable(CAP_NET_ADMIN)) | |
559 | return -EACCES; | |
560 | return hci_dev_reset(arg); | |
561 | ||
562 | case HCIDEVRESTAT: | |
563 | if (!capable(CAP_NET_ADMIN)) | |
564 | return -EACCES; | |
565 | return hci_dev_reset_stat(arg); | |
566 | ||
567 | case HCISETSCAN: | |
568 | case HCISETAUTH: | |
569 | case HCISETENCRYPT: | |
570 | case HCISETPTYPE: | |
571 | case HCISETLINKPOL: | |
572 | case HCISETLINKMODE: | |
573 | case HCISETACLMTU: | |
574 | case HCISETSCOMTU: | |
575 | if (!capable(CAP_NET_ADMIN)) | |
576 | return -EACCES; | |
577 | return hci_dev_cmd(cmd, argp); | |
578 | ||
579 | case HCIINQUIRY: | |
580 | return hci_inquiry(argp); | |
581 | ||
582 | default: | |
583 | lock_sock(sk); | |
584 | err = hci_sock_bound_ioctl(sk, cmd, arg); | |
585 | release_sock(sk); | |
586 | return err; | |
587 | } | |
588 | } | |
589 | ||
8fc9ced3 GP |
590 | static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, |
591 | int addr_len) | |
1da177e4 | 592 | { |
0381101f | 593 | struct sockaddr_hci haddr; |
1da177e4 LT |
594 | struct sock *sk = sock->sk; |
595 | struct hci_dev *hdev = NULL; | |
0381101f | 596 | int len, err = 0; |
1da177e4 LT |
597 | |
598 | BT_DBG("sock %p sk %p", sock, sk); | |
599 | ||
0381101f JH |
600 | if (!addr) |
601 | return -EINVAL; | |
602 | ||
603 | memset(&haddr, 0, sizeof(haddr)); | |
604 | len = min_t(unsigned int, sizeof(haddr), addr_len); | |
605 | memcpy(&haddr, addr, len); | |
606 | ||
607 | if (haddr.hci_family != AF_BLUETOOTH) | |
608 | return -EINVAL; | |
609 | ||
1da177e4 LT |
610 | lock_sock(sk); |
611 | ||
7cc2ade2 | 612 | if (sk->sk_state == BT_BOUND) { |
1da177e4 LT |
613 | err = -EALREADY; |
614 | goto done; | |
615 | } | |
616 | ||
7cc2ade2 MH |
617 | switch (haddr.hci_channel) { |
618 | case HCI_CHANNEL_RAW: | |
619 | if (hci_pi(sk)->hdev) { | |
620 | err = -EALREADY; | |
1da177e4 LT |
621 | goto done; |
622 | } | |
623 | ||
7cc2ade2 MH |
624 | if (haddr.hci_dev != HCI_DEV_NONE) { |
625 | hdev = hci_dev_get(haddr.hci_dev); | |
626 | if (!hdev) { | |
627 | err = -ENODEV; | |
628 | goto done; | |
629 | } | |
630 | ||
631 | atomic_inc(&hdev->promisc); | |
632 | } | |
633 | ||
634 | hci_pi(sk)->hdev = hdev; | |
635 | break; | |
636 | ||
637 | case HCI_CHANNEL_CONTROL: | |
4b95a24c | 638 | if (haddr.hci_dev != HCI_DEV_NONE) { |
7cc2ade2 MH |
639 | err = -EINVAL; |
640 | goto done; | |
641 | } | |
642 | ||
801f13bd MH |
643 | if (!capable(CAP_NET_ADMIN)) { |
644 | err = -EPERM; | |
645 | goto done; | |
646 | } | |
647 | ||
7cc2ade2 MH |
648 | break; |
649 | ||
cd82e61c MH |
650 | case HCI_CHANNEL_MONITOR: |
651 | if (haddr.hci_dev != HCI_DEV_NONE) { | |
652 | err = -EINVAL; | |
653 | goto done; | |
654 | } | |
655 | ||
656 | if (!capable(CAP_NET_RAW)) { | |
657 | err = -EPERM; | |
658 | goto done; | |
659 | } | |
660 | ||
661 | send_monitor_replay(sk); | |
662 | ||
663 | atomic_inc(&monitor_promisc); | |
664 | break; | |
665 | ||
7cc2ade2 MH |
666 | default: |
667 | err = -EINVAL; | |
668 | goto done; | |
1da177e4 LT |
669 | } |
670 | ||
7cc2ade2 | 671 | |
0381101f | 672 | hci_pi(sk)->channel = haddr.hci_channel; |
1da177e4 LT |
673 | sk->sk_state = BT_BOUND; |
674 | ||
675 | done: | |
676 | release_sock(sk); | |
677 | return err; | |
678 | } | |
679 | ||
8fc9ced3 GP |
680 | static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, |
681 | int *addr_len, int peer) | |
1da177e4 LT |
682 | { |
683 | struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr; | |
684 | struct sock *sk = sock->sk; | |
7b005bd3 | 685 | struct hci_dev *hdev = hci_pi(sk)->hdev; |
1da177e4 LT |
686 | |
687 | BT_DBG("sock %p sk %p", sock, sk); | |
688 | ||
7b005bd3 MH |
689 | if (!hdev) |
690 | return -EBADFD; | |
691 | ||
1da177e4 LT |
692 | lock_sock(sk); |
693 | ||
694 | *addr_len = sizeof(*haddr); | |
695 | haddr->hci_family = AF_BLUETOOTH; | |
7b005bd3 | 696 | haddr->hci_dev = hdev->id; |
3f68ba07 | 697 | haddr->hci_channel= 0; |
1da177e4 LT |
698 | |
699 | release_sock(sk); | |
700 | return 0; | |
701 | } | |
702 | ||
6039aa73 GP |
703 | static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, |
704 | struct sk_buff *skb) | |
1da177e4 LT |
705 | { |
706 | __u32 mask = hci_pi(sk)->cmsg_mask; | |
707 | ||
0d48d939 MH |
708 | if (mask & HCI_CMSG_DIR) { |
709 | int incoming = bt_cb(skb)->incoming; | |
8fc9ced3 GP |
710 | put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming), |
711 | &incoming); | |
0d48d939 | 712 | } |
1da177e4 | 713 | |
a61bbcf2 | 714 | if (mask & HCI_CMSG_TSTAMP) { |
f6e623a6 JFS |
715 | #ifdef CONFIG_COMPAT |
716 | struct compat_timeval ctv; | |
717 | #endif | |
a61bbcf2 | 718 | struct timeval tv; |
767c5eb5 MH |
719 | void *data; |
720 | int len; | |
a61bbcf2 PM |
721 | |
722 | skb_get_timestamp(skb, &tv); | |
767c5eb5 | 723 | |
1da97f83 DM |
724 | data = &tv; |
725 | len = sizeof(tv); | |
726 | #ifdef CONFIG_COMPAT | |
da88cea1 L |
727 | if (!COMPAT_USE_64BIT_TIME && |
728 | (msg->msg_flags & MSG_CMSG_COMPAT)) { | |
767c5eb5 MH |
729 | ctv.tv_sec = tv.tv_sec; |
730 | ctv.tv_usec = tv.tv_usec; | |
731 | data = &ctv; | |
732 | len = sizeof(ctv); | |
767c5eb5 | 733 | } |
1da97f83 | 734 | #endif |
767c5eb5 MH |
735 | |
736 | put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, len, data); | |
a61bbcf2 | 737 | } |
1da177e4 | 738 | } |
8e87d142 YH |
739 | |
740 | static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock, | |
3bb3c755 | 741 | struct msghdr *msg, size_t len, int flags) |
1da177e4 LT |
742 | { |
743 | int noblock = flags & MSG_DONTWAIT; | |
744 | struct sock *sk = sock->sk; | |
745 | struct sk_buff *skb; | |
746 | int copied, err; | |
747 | ||
748 | BT_DBG("sock %p, sk %p", sock, sk); | |
749 | ||
750 | if (flags & (MSG_OOB)) | |
751 | return -EOPNOTSUPP; | |
752 | ||
753 | if (sk->sk_state == BT_CLOSED) | |
754 | return 0; | |
755 | ||
70f23020 AE |
756 | skb = skb_recv_datagram(sk, flags, noblock, &err); |
757 | if (!skb) | |
1da177e4 LT |
758 | return err; |
759 | ||
760 | msg->msg_namelen = 0; | |
761 | ||
762 | copied = skb->len; | |
763 | if (len < copied) { | |
764 | msg->msg_flags |= MSG_TRUNC; | |
765 | copied = len; | |
766 | } | |
767 | ||
badff6d0 | 768 | skb_reset_transport_header(skb); |
1da177e4 LT |
769 | err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); |
770 | ||
3a208627 MH |
771 | switch (hci_pi(sk)->channel) { |
772 | case HCI_CHANNEL_RAW: | |
773 | hci_sock_cmsg(sk, msg, skb); | |
774 | break; | |
97e0bdeb | 775 | case HCI_CHANNEL_CONTROL: |
cd82e61c MH |
776 | case HCI_CHANNEL_MONITOR: |
777 | sock_recv_timestamp(msg, sk, skb); | |
778 | break; | |
3a208627 | 779 | } |
1da177e4 LT |
780 | |
781 | skb_free_datagram(sk, skb); | |
782 | ||
783 | return err ? : copied; | |
784 | } | |
785 | ||
8e87d142 | 786 | static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
1da177e4 LT |
787 | struct msghdr *msg, size_t len) |
788 | { | |
789 | struct sock *sk = sock->sk; | |
790 | struct hci_dev *hdev; | |
791 | struct sk_buff *skb; | |
792 | int err; | |
793 | ||
794 | BT_DBG("sock %p sk %p", sock, sk); | |
795 | ||
796 | if (msg->msg_flags & MSG_OOB) | |
797 | return -EOPNOTSUPP; | |
798 | ||
799 | if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE)) | |
800 | return -EINVAL; | |
801 | ||
802 | if (len < 4 || len > HCI_MAX_FRAME_SIZE) | |
803 | return -EINVAL; | |
804 | ||
805 | lock_sock(sk); | |
806 | ||
0381101f JH |
807 | switch (hci_pi(sk)->channel) { |
808 | case HCI_CHANNEL_RAW: | |
809 | break; | |
810 | case HCI_CHANNEL_CONTROL: | |
811 | err = mgmt_control(sk, msg, len); | |
812 | goto done; | |
cd82e61c MH |
813 | case HCI_CHANNEL_MONITOR: |
814 | err = -EOPNOTSUPP; | |
815 | goto done; | |
0381101f JH |
816 | default: |
817 | err = -EINVAL; | |
818 | goto done; | |
819 | } | |
820 | ||
70f23020 AE |
821 | hdev = hci_pi(sk)->hdev; |
822 | if (!hdev) { | |
1da177e4 LT |
823 | err = -EBADFD; |
824 | goto done; | |
825 | } | |
826 | ||
7e21addc MH |
827 | if (!test_bit(HCI_UP, &hdev->flags)) { |
828 | err = -ENETDOWN; | |
829 | goto done; | |
830 | } | |
831 | ||
70f23020 AE |
832 | skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); |
833 | if (!skb) | |
1da177e4 LT |
834 | goto done; |
835 | ||
836 | if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { | |
837 | err = -EFAULT; | |
838 | goto drop; | |
839 | } | |
840 | ||
0d48d939 | 841 | bt_cb(skb)->pkt_type = *((unsigned char *) skb->data); |
1da177e4 LT |
842 | skb_pull(skb, 1); |
843 | skb->dev = (void *) hdev; | |
844 | ||
0d48d939 | 845 | if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) { |
83985319 | 846 | u16 opcode = get_unaligned_le16(skb->data); |
1da177e4 LT |
847 | u16 ogf = hci_opcode_ogf(opcode); |
848 | u16 ocf = hci_opcode_ocf(opcode); | |
849 | ||
850 | if (((ogf > HCI_SFLT_MAX_OGF) || | |
3bb3c755 GP |
851 | !hci_test_bit(ocf & HCI_FLT_OCF_BITS, |
852 | &hci_sec_filter.ocf_mask[ogf])) && | |
853 | !capable(CAP_NET_RAW)) { | |
1da177e4 LT |
854 | err = -EPERM; |
855 | goto drop; | |
856 | } | |
857 | ||
a9de9248 | 858 | if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) { |
1da177e4 | 859 | skb_queue_tail(&hdev->raw_q, skb); |
3eff45ea | 860 | queue_work(hdev->workqueue, &hdev->tx_work); |
1da177e4 LT |
861 | } else { |
862 | skb_queue_tail(&hdev->cmd_q, skb); | |
c347b765 | 863 | queue_work(hdev->workqueue, &hdev->cmd_work); |
1da177e4 LT |
864 | } |
865 | } else { | |
866 | if (!capable(CAP_NET_RAW)) { | |
867 | err = -EPERM; | |
868 | goto drop; | |
869 | } | |
870 | ||
871 | skb_queue_tail(&hdev->raw_q, skb); | |
3eff45ea | 872 | queue_work(hdev->workqueue, &hdev->tx_work); |
1da177e4 LT |
873 | } |
874 | ||
875 | err = len; | |
876 | ||
877 | done: | |
878 | release_sock(sk); | |
879 | return err; | |
880 | ||
881 | drop: | |
882 | kfree_skb(skb); | |
883 | goto done; | |
884 | } | |
885 | ||
8fc9ced3 GP |
886 | static int hci_sock_setsockopt(struct socket *sock, int level, int optname, |
887 | char __user *optval, unsigned int len) | |
1da177e4 LT |
888 | { |
889 | struct hci_ufilter uf = { .opcode = 0 }; | |
890 | struct sock *sk = sock->sk; | |
891 | int err = 0, opt = 0; | |
892 | ||
893 | BT_DBG("sk %p, opt %d", sk, optname); | |
894 | ||
895 | lock_sock(sk); | |
896 | ||
2f39cdb7 MH |
897 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { |
898 | err = -EINVAL; | |
899 | goto done; | |
900 | } | |
901 | ||
1da177e4 LT |
902 | switch (optname) { |
903 | case HCI_DATA_DIR: | |
904 | if (get_user(opt, (int __user *)optval)) { | |
905 | err = -EFAULT; | |
906 | break; | |
907 | } | |
908 | ||
909 | if (opt) | |
910 | hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR; | |
911 | else | |
912 | hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR; | |
913 | break; | |
914 | ||
915 | case HCI_TIME_STAMP: | |
916 | if (get_user(opt, (int __user *)optval)) { | |
917 | err = -EFAULT; | |
918 | break; | |
919 | } | |
920 | ||
921 | if (opt) | |
922 | hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP; | |
923 | else | |
924 | hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP; | |
925 | break; | |
926 | ||
927 | case HCI_FILTER: | |
0878b666 MH |
928 | { |
929 | struct hci_filter *f = &hci_pi(sk)->filter; | |
930 | ||
931 | uf.type_mask = f->type_mask; | |
932 | uf.opcode = f->opcode; | |
933 | uf.event_mask[0] = *((u32 *) f->event_mask + 0); | |
934 | uf.event_mask[1] = *((u32 *) f->event_mask + 1); | |
935 | } | |
936 | ||
1da177e4 LT |
937 | len = min_t(unsigned int, len, sizeof(uf)); |
938 | if (copy_from_user(&uf, optval, len)) { | |
939 | err = -EFAULT; | |
940 | break; | |
941 | } | |
942 | ||
943 | if (!capable(CAP_NET_RAW)) { | |
944 | uf.type_mask &= hci_sec_filter.type_mask; | |
945 | uf.event_mask[0] &= *((u32 *) hci_sec_filter.event_mask + 0); | |
946 | uf.event_mask[1] &= *((u32 *) hci_sec_filter.event_mask + 1); | |
947 | } | |
948 | ||
949 | { | |
950 | struct hci_filter *f = &hci_pi(sk)->filter; | |
951 | ||
952 | f->type_mask = uf.type_mask; | |
953 | f->opcode = uf.opcode; | |
954 | *((u32 *) f->event_mask + 0) = uf.event_mask[0]; | |
955 | *((u32 *) f->event_mask + 1) = uf.event_mask[1]; | |
956 | } | |
8e87d142 | 957 | break; |
1da177e4 LT |
958 | |
959 | default: | |
960 | err = -ENOPROTOOPT; | |
961 | break; | |
962 | } | |
963 | ||
2f39cdb7 | 964 | done: |
1da177e4 LT |
965 | release_sock(sk); |
966 | return err; | |
967 | } | |
968 | ||
8fc9ced3 GP |
969 | static int hci_sock_getsockopt(struct socket *sock, int level, int optname, |
970 | char __user *optval, int __user *optlen) | |
1da177e4 LT |
971 | { |
972 | struct hci_ufilter uf; | |
973 | struct sock *sk = sock->sk; | |
cedc5469 MH |
974 | int len, opt, err = 0; |
975 | ||
976 | BT_DBG("sk %p, opt %d", sk, optname); | |
1da177e4 LT |
977 | |
978 | if (get_user(len, optlen)) | |
979 | return -EFAULT; | |
980 | ||
cedc5469 MH |
981 | lock_sock(sk); |
982 | ||
983 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { | |
984 | err = -EINVAL; | |
985 | goto done; | |
986 | } | |
987 | ||
1da177e4 LT |
988 | switch (optname) { |
989 | case HCI_DATA_DIR: | |
990 | if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR) | |
991 | opt = 1; | |
8e87d142 | 992 | else |
1da177e4 LT |
993 | opt = 0; |
994 | ||
995 | if (put_user(opt, optval)) | |
cedc5469 | 996 | err = -EFAULT; |
1da177e4 LT |
997 | break; |
998 | ||
999 | case HCI_TIME_STAMP: | |
1000 | if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP) | |
1001 | opt = 1; | |
8e87d142 | 1002 | else |
1da177e4 LT |
1003 | opt = 0; |
1004 | ||
1005 | if (put_user(opt, optval)) | |
cedc5469 | 1006 | err = -EFAULT; |
1da177e4 LT |
1007 | break; |
1008 | ||
1009 | case HCI_FILTER: | |
1010 | { | |
1011 | struct hci_filter *f = &hci_pi(sk)->filter; | |
1012 | ||
e15ca9a0 | 1013 | memset(&uf, 0, sizeof(uf)); |
1da177e4 LT |
1014 | uf.type_mask = f->type_mask; |
1015 | uf.opcode = f->opcode; | |
1016 | uf.event_mask[0] = *((u32 *) f->event_mask + 0); | |
1017 | uf.event_mask[1] = *((u32 *) f->event_mask + 1); | |
1018 | } | |
1019 | ||
1020 | len = min_t(unsigned int, len, sizeof(uf)); | |
1021 | if (copy_to_user(optval, &uf, len)) | |
cedc5469 | 1022 | err = -EFAULT; |
1da177e4 LT |
1023 | break; |
1024 | ||
1025 | default: | |
cedc5469 | 1026 | err = -ENOPROTOOPT; |
1da177e4 LT |
1027 | break; |
1028 | } | |
1029 | ||
cedc5469 MH |
1030 | done: |
1031 | release_sock(sk); | |
1032 | return err; | |
1da177e4 LT |
1033 | } |
1034 | ||
90ddc4f0 | 1035 | static const struct proto_ops hci_sock_ops = { |
1da177e4 LT |
1036 | .family = PF_BLUETOOTH, |
1037 | .owner = THIS_MODULE, | |
1038 | .release = hci_sock_release, | |
1039 | .bind = hci_sock_bind, | |
1040 | .getname = hci_sock_getname, | |
1041 | .sendmsg = hci_sock_sendmsg, | |
1042 | .recvmsg = hci_sock_recvmsg, | |
1043 | .ioctl = hci_sock_ioctl, | |
1044 | .poll = datagram_poll, | |
1045 | .listen = sock_no_listen, | |
1046 | .shutdown = sock_no_shutdown, | |
1047 | .setsockopt = hci_sock_setsockopt, | |
1048 | .getsockopt = hci_sock_getsockopt, | |
1049 | .connect = sock_no_connect, | |
1050 | .socketpair = sock_no_socketpair, | |
1051 | .accept = sock_no_accept, | |
1052 | .mmap = sock_no_mmap | |
1053 | }; | |
1054 | ||
1055 | static struct proto hci_sk_proto = { | |
1056 | .name = "HCI", | |
1057 | .owner = THIS_MODULE, | |
1058 | .obj_size = sizeof(struct hci_pinfo) | |
1059 | }; | |
1060 | ||
3f378b68 EP |
1061 | static int hci_sock_create(struct net *net, struct socket *sock, int protocol, |
1062 | int kern) | |
1da177e4 LT |
1063 | { |
1064 | struct sock *sk; | |
1065 | ||
1066 | BT_DBG("sock %p", sock); | |
1067 | ||
1068 | if (sock->type != SOCK_RAW) | |
1069 | return -ESOCKTNOSUPPORT; | |
1070 | ||
1071 | sock->ops = &hci_sock_ops; | |
1072 | ||
6257ff21 | 1073 | sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto); |
1da177e4 LT |
1074 | if (!sk) |
1075 | return -ENOMEM; | |
1076 | ||
1077 | sock_init_data(sock, sk); | |
1078 | ||
1079 | sock_reset_flag(sk, SOCK_ZAPPED); | |
1080 | ||
1081 | sk->sk_protocol = protocol; | |
1082 | ||
1083 | sock->state = SS_UNCONNECTED; | |
1084 | sk->sk_state = BT_OPEN; | |
1085 | ||
1086 | bt_sock_link(&hci_sk_list, sk); | |
1087 | return 0; | |
1088 | } | |
1089 | ||
ec1b4cf7 | 1090 | static const struct net_proto_family hci_sock_family_ops = { |
1da177e4 LT |
1091 | .family = PF_BLUETOOTH, |
1092 | .owner = THIS_MODULE, | |
1093 | .create = hci_sock_create, | |
1094 | }; | |
1095 | ||
1da177e4 LT |
1096 | int __init hci_sock_init(void) |
1097 | { | |
1098 | int err; | |
1099 | ||
1100 | err = proto_register(&hci_sk_proto, 0); | |
1101 | if (err < 0) | |
1102 | return err; | |
1103 | ||
1104 | err = bt_sock_register(BTPROTO_HCI, &hci_sock_family_ops); | |
1105 | if (err < 0) | |
1106 | goto error; | |
1107 | ||
1da177e4 LT |
1108 | BT_INFO("HCI socket layer initialized"); |
1109 | ||
1110 | return 0; | |
1111 | ||
1112 | error: | |
1113 | BT_ERR("HCI socket registration failed"); | |
1114 | proto_unregister(&hci_sk_proto); | |
1115 | return err; | |
1116 | } | |
1117 | ||
b7440a14 | 1118 | void hci_sock_cleanup(void) |
1da177e4 LT |
1119 | { |
1120 | if (bt_sock_unregister(BTPROTO_HCI) < 0) | |
1121 | BT_ERR("HCI socket unregistration failed"); | |
1122 | ||
1da177e4 | 1123 | proto_unregister(&hci_sk_proto); |
1da177e4 | 1124 | } |