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 | ||
1da177e4 LT |
27 | #include <linux/module.h> |
28 | ||
29 | #include <linux/types.h> | |
4fc268d2 | 30 | #include <linux/capability.h> |
1da177e4 LT |
31 | #include <linux/errno.h> |
32 | #include <linux/kernel.h> | |
1da177e4 LT |
33 | #include <linux/slab.h> |
34 | #include <linux/poll.h> | |
35 | #include <linux/fcntl.h> | |
36 | #include <linux/init.h> | |
37 | #include <linux/skbuff.h> | |
38 | #include <linux/workqueue.h> | |
39 | #include <linux/interrupt.h> | |
767c5eb5 | 40 | #include <linux/compat.h> |
1da177e4 LT |
41 | #include <linux/socket.h> |
42 | #include <linux/ioctl.h> | |
43 | #include <net/sock.h> | |
44 | ||
70f23020 | 45 | #include <linux/uaccess.h> |
1da177e4 LT |
46 | #include <asm/unaligned.h> |
47 | ||
48 | #include <net/bluetooth/bluetooth.h> | |
49 | #include <net/bluetooth/hci_core.h> | |
cd82e61c | 50 | #include <net/bluetooth/hci_mon.h> |
1da177e4 | 51 | |
cd82e61c MH |
52 | static atomic_t monitor_promisc = ATOMIC_INIT(0); |
53 | ||
1da177e4 LT |
54 | /* ----- HCI socket interface ----- */ |
55 | ||
56 | static inline int hci_test_bit(int nr, void *addr) | |
57 | { | |
58 | return *((__u32 *) addr + (nr >> 5)) & ((__u32) 1 << (nr & 31)); | |
59 | } | |
60 | ||
61 | /* Security filter */ | |
62 | static struct hci_sec_filter hci_sec_filter = { | |
63 | /* Packet types */ | |
64 | 0x10, | |
65 | /* Events */ | |
dd7f5527 | 66 | { 0x1000d9fe, 0x0000b00c }, |
1da177e4 LT |
67 | /* Commands */ |
68 | { | |
69 | { 0x0 }, | |
70 | /* OGF_LINK_CTL */ | |
7c631a67 | 71 | { 0xbe000006, 0x00000001, 0x00000000, 0x00 }, |
1da177e4 | 72 | /* OGF_LINK_POLICY */ |
7c631a67 | 73 | { 0x00005200, 0x00000000, 0x00000000, 0x00 }, |
1da177e4 | 74 | /* OGF_HOST_CTL */ |
7c631a67 | 75 | { 0xaab00200, 0x2b402aaa, 0x05220154, 0x00 }, |
1da177e4 | 76 | /* OGF_INFO_PARAM */ |
7c631a67 | 77 | { 0x000002be, 0x00000000, 0x00000000, 0x00 }, |
1da177e4 | 78 | /* OGF_STATUS_PARAM */ |
7c631a67 | 79 | { 0x000000ea, 0x00000000, 0x00000000, 0x00 } |
1da177e4 LT |
80 | } |
81 | }; | |
82 | ||
83 | static struct bt_sock_list hci_sk_list = { | |
d5fb2962 | 84 | .lock = __RW_LOCK_UNLOCKED(hci_sk_list.lock) |
1da177e4 LT |
85 | }; |
86 | ||
87 | /* Send frame to RAW socket */ | |
470fe1b5 | 88 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb) |
1da177e4 LT |
89 | { |
90 | struct sock *sk; | |
91 | struct hlist_node *node; | |
e0edf373 | 92 | struct sk_buff *skb_copy = NULL; |
1da177e4 LT |
93 | |
94 | BT_DBG("hdev %p len %d", hdev, skb->len); | |
95 | ||
96 | read_lock(&hci_sk_list.lock); | |
470fe1b5 | 97 | |
1da177e4 LT |
98 | sk_for_each(sk, node, &hci_sk_list.head) { |
99 | struct hci_filter *flt; | |
100 | struct sk_buff *nskb; | |
101 | ||
102 | if (sk->sk_state != BT_BOUND || hci_pi(sk)->hdev != hdev) | |
103 | continue; | |
104 | ||
105 | /* Don't send frame to the socket it came from */ | |
106 | if (skb->sk == sk) | |
107 | continue; | |
108 | ||
470fe1b5 | 109 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) |
a40c406c JH |
110 | continue; |
111 | ||
1da177e4 LT |
112 | /* Apply filter */ |
113 | flt = &hci_pi(sk)->filter; | |
114 | ||
0d48d939 | 115 | if (!test_bit((bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) ? |
3bb3c755 GP |
116 | 0 : (bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS), |
117 | &flt->type_mask)) | |
1da177e4 LT |
118 | continue; |
119 | ||
0d48d939 | 120 | if (bt_cb(skb)->pkt_type == HCI_EVENT_PKT) { |
fc5fef61 | 121 | int evt = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS); |
1da177e4 LT |
122 | |
123 | if (!hci_test_bit(evt, &flt->event_mask)) | |
124 | continue; | |
125 | ||
4498c80d DM |
126 | if (flt->opcode && |
127 | ((evt == HCI_EV_CMD_COMPLETE && | |
128 | flt->opcode != | |
905f3ed6 | 129 | get_unaligned((__le16 *)(skb->data + 3))) || |
4498c80d DM |
130 | (evt == HCI_EV_CMD_STATUS && |
131 | flt->opcode != | |
905f3ed6 | 132 | get_unaligned((__le16 *)(skb->data + 4))))) |
1da177e4 LT |
133 | continue; |
134 | } | |
135 | ||
e0edf373 MH |
136 | if (!skb_copy) { |
137 | /* Create a private copy with headroom */ | |
138 | skb_copy = __pskb_copy(skb, 1, GFP_ATOMIC); | |
139 | if (!skb_copy) | |
140 | continue; | |
141 | ||
142 | /* Put type byte before the data */ | |
143 | memcpy(skb_push(skb_copy, 1), &bt_cb(skb)->pkt_type, 1); | |
144 | } | |
145 | ||
146 | nskb = skb_clone(skb_copy, GFP_ATOMIC); | |
70f23020 | 147 | if (!nskb) |
1da177e4 LT |
148 | continue; |
149 | ||
470fe1b5 MH |
150 | if (sock_queue_rcv_skb(sk, nskb)) |
151 | kfree_skb(nskb); | |
152 | } | |
153 | ||
154 | read_unlock(&hci_sk_list.lock); | |
e0edf373 MH |
155 | |
156 | kfree_skb(skb_copy); | |
470fe1b5 MH |
157 | } |
158 | ||
159 | /* Send frame to control socket */ | |
160 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk) | |
161 | { | |
162 | struct sock *sk; | |
163 | struct hlist_node *node; | |
164 | ||
165 | BT_DBG("len %d", skb->len); | |
166 | ||
167 | read_lock(&hci_sk_list.lock); | |
168 | ||
169 | sk_for_each(sk, node, &hci_sk_list.head) { | |
170 | struct sk_buff *nskb; | |
171 | ||
172 | /* Skip the original socket */ | |
173 | if (sk == skip_sk) | |
174 | continue; | |
175 | ||
176 | if (sk->sk_state != BT_BOUND) | |
177 | continue; | |
178 | ||
179 | if (hci_pi(sk)->channel != HCI_CHANNEL_CONTROL) | |
180 | continue; | |
181 | ||
182 | nskb = skb_clone(skb, GFP_ATOMIC); | |
183 | if (!nskb) | |
184 | continue; | |
1da177e4 LT |
185 | |
186 | if (sock_queue_rcv_skb(sk, nskb)) | |
187 | kfree_skb(nskb); | |
188 | } | |
470fe1b5 | 189 | |
1da177e4 LT |
190 | read_unlock(&hci_sk_list.lock); |
191 | } | |
192 | ||
cd82e61c MH |
193 | /* Send frame to monitor socket */ |
194 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb) | |
195 | { | |
196 | struct sock *sk; | |
197 | struct hlist_node *node; | |
198 | struct sk_buff *skb_copy = NULL; | |
199 | __le16 opcode; | |
200 | ||
201 | if (!atomic_read(&monitor_promisc)) | |
202 | return; | |
203 | ||
204 | BT_DBG("hdev %p len %d", hdev, skb->len); | |
205 | ||
206 | switch (bt_cb(skb)->pkt_type) { | |
207 | case HCI_COMMAND_PKT: | |
208 | opcode = __constant_cpu_to_le16(HCI_MON_COMMAND_PKT); | |
209 | break; | |
210 | case HCI_EVENT_PKT: | |
211 | opcode = __constant_cpu_to_le16(HCI_MON_EVENT_PKT); | |
212 | break; | |
213 | case HCI_ACLDATA_PKT: | |
214 | if (bt_cb(skb)->incoming) | |
215 | opcode = __constant_cpu_to_le16(HCI_MON_ACL_RX_PKT); | |
216 | else | |
217 | opcode = __constant_cpu_to_le16(HCI_MON_ACL_TX_PKT); | |
218 | break; | |
219 | case HCI_SCODATA_PKT: | |
220 | if (bt_cb(skb)->incoming) | |
221 | opcode = __constant_cpu_to_le16(HCI_MON_SCO_RX_PKT); | |
222 | else | |
223 | opcode = __constant_cpu_to_le16(HCI_MON_SCO_TX_PKT); | |
224 | break; | |
225 | default: | |
226 | return; | |
227 | } | |
228 | ||
229 | read_lock(&hci_sk_list.lock); | |
230 | ||
231 | sk_for_each(sk, node, &hci_sk_list.head) { | |
232 | struct sk_buff *nskb; | |
233 | ||
234 | if (sk->sk_state != BT_BOUND) | |
235 | continue; | |
236 | ||
237 | if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR) | |
238 | continue; | |
239 | ||
240 | if (!skb_copy) { | |
241 | struct hci_mon_hdr *hdr; | |
242 | ||
243 | /* Create a private copy with headroom */ | |
8fc9ced3 GP |
244 | skb_copy = __pskb_copy(skb, HCI_MON_HDR_SIZE, |
245 | GFP_ATOMIC); | |
cd82e61c MH |
246 | if (!skb_copy) |
247 | continue; | |
248 | ||
249 | /* Put header before the data */ | |
250 | hdr = (void *) skb_push(skb_copy, HCI_MON_HDR_SIZE); | |
251 | hdr->opcode = opcode; | |
252 | hdr->index = cpu_to_le16(hdev->id); | |
253 | hdr->len = cpu_to_le16(skb->len); | |
254 | } | |
255 | ||
256 | nskb = skb_clone(skb_copy, GFP_ATOMIC); | |
257 | if (!nskb) | |
258 | continue; | |
259 | ||
260 | if (sock_queue_rcv_skb(sk, nskb)) | |
261 | kfree_skb(nskb); | |
262 | } | |
263 | ||
264 | read_unlock(&hci_sk_list.lock); | |
265 | ||
266 | kfree_skb(skb_copy); | |
267 | } | |
268 | ||
269 | static void send_monitor_event(struct sk_buff *skb) | |
270 | { | |
271 | struct sock *sk; | |
272 | struct hlist_node *node; | |
273 | ||
274 | BT_DBG("len %d", skb->len); | |
275 | ||
276 | read_lock(&hci_sk_list.lock); | |
277 | ||
278 | sk_for_each(sk, node, &hci_sk_list.head) { | |
279 | struct sk_buff *nskb; | |
280 | ||
281 | if (sk->sk_state != BT_BOUND) | |
282 | continue; | |
283 | ||
284 | if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR) | |
285 | continue; | |
286 | ||
287 | nskb = skb_clone(skb, GFP_ATOMIC); | |
288 | if (!nskb) | |
289 | continue; | |
290 | ||
291 | if (sock_queue_rcv_skb(sk, nskb)) | |
292 | kfree_skb(nskb); | |
293 | } | |
294 | ||
295 | read_unlock(&hci_sk_list.lock); | |
296 | } | |
297 | ||
298 | static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event) | |
299 | { | |
300 | struct hci_mon_hdr *hdr; | |
301 | struct hci_mon_new_index *ni; | |
302 | struct sk_buff *skb; | |
303 | __le16 opcode; | |
304 | ||
305 | switch (event) { | |
306 | case HCI_DEV_REG: | |
307 | skb = bt_skb_alloc(HCI_MON_NEW_INDEX_SIZE, GFP_ATOMIC); | |
308 | if (!skb) | |
309 | return NULL; | |
310 | ||
311 | ni = (void *) skb_put(skb, HCI_MON_NEW_INDEX_SIZE); | |
312 | ni->type = hdev->dev_type; | |
313 | ni->bus = hdev->bus; | |
314 | bacpy(&ni->bdaddr, &hdev->bdaddr); | |
315 | memcpy(ni->name, hdev->name, 8); | |
316 | ||
317 | opcode = __constant_cpu_to_le16(HCI_MON_NEW_INDEX); | |
318 | break; | |
319 | ||
320 | case HCI_DEV_UNREG: | |
321 | skb = bt_skb_alloc(0, GFP_ATOMIC); | |
322 | if (!skb) | |
323 | return NULL; | |
324 | ||
325 | opcode = __constant_cpu_to_le16(HCI_MON_DEL_INDEX); | |
326 | break; | |
327 | ||
328 | default: | |
329 | return NULL; | |
330 | } | |
331 | ||
332 | __net_timestamp(skb); | |
333 | ||
334 | hdr = (void *) skb_push(skb, HCI_MON_HDR_SIZE); | |
335 | hdr->opcode = opcode; | |
336 | hdr->index = cpu_to_le16(hdev->id); | |
337 | hdr->len = cpu_to_le16(skb->len - HCI_MON_HDR_SIZE); | |
338 | ||
339 | return skb; | |
340 | } | |
341 | ||
342 | static void send_monitor_replay(struct sock *sk) | |
343 | { | |
344 | struct hci_dev *hdev; | |
345 | ||
346 | read_lock(&hci_dev_list_lock); | |
347 | ||
348 | list_for_each_entry(hdev, &hci_dev_list, list) { | |
349 | struct sk_buff *skb; | |
350 | ||
351 | skb = create_monitor_event(hdev, HCI_DEV_REG); | |
352 | if (!skb) | |
353 | continue; | |
354 | ||
355 | if (sock_queue_rcv_skb(sk, skb)) | |
356 | kfree_skb(skb); | |
357 | } | |
358 | ||
359 | read_unlock(&hci_dev_list_lock); | |
360 | } | |
361 | ||
040030ef MH |
362 | /* Generate internal stack event */ |
363 | static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data) | |
364 | { | |
365 | struct hci_event_hdr *hdr; | |
366 | struct hci_ev_stack_internal *ev; | |
367 | struct sk_buff *skb; | |
368 | ||
369 | skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC); | |
370 | if (!skb) | |
371 | return; | |
372 | ||
373 | hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE); | |
374 | hdr->evt = HCI_EV_STACK_INTERNAL; | |
375 | hdr->plen = sizeof(*ev) + dlen; | |
376 | ||
377 | ev = (void *) skb_put(skb, sizeof(*ev) + dlen); | |
378 | ev->type = type; | |
379 | memcpy(ev->data, data, dlen); | |
380 | ||
381 | bt_cb(skb)->incoming = 1; | |
382 | __net_timestamp(skb); | |
383 | ||
384 | bt_cb(skb)->pkt_type = HCI_EVENT_PKT; | |
385 | skb->dev = (void *) hdev; | |
386 | hci_send_to_sock(hdev, skb); | |
387 | kfree_skb(skb); | |
388 | } | |
389 | ||
390 | void hci_sock_dev_event(struct hci_dev *hdev, int event) | |
391 | { | |
392 | struct hci_ev_si_device ev; | |
393 | ||
394 | BT_DBG("hdev %s event %d", hdev->name, event); | |
395 | ||
cd82e61c MH |
396 | /* Send event to monitor */ |
397 | if (atomic_read(&monitor_promisc)) { | |
398 | struct sk_buff *skb; | |
399 | ||
400 | skb = create_monitor_event(hdev, event); | |
401 | if (skb) { | |
402 | send_monitor_event(skb); | |
403 | kfree_skb(skb); | |
404 | } | |
405 | } | |
406 | ||
040030ef MH |
407 | /* Send event to sockets */ |
408 | ev.event = event; | |
409 | ev.dev_id = hdev->id; | |
410 | hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev); | |
411 | ||
412 | if (event == HCI_DEV_UNREG) { | |
413 | struct sock *sk; | |
414 | struct hlist_node *node; | |
415 | ||
416 | /* Detach sockets from device */ | |
417 | read_lock(&hci_sk_list.lock); | |
418 | sk_for_each(sk, node, &hci_sk_list.head) { | |
419 | bh_lock_sock_nested(sk); | |
420 | if (hci_pi(sk)->hdev == hdev) { | |
421 | hci_pi(sk)->hdev = NULL; | |
422 | sk->sk_err = EPIPE; | |
423 | sk->sk_state = BT_OPEN; | |
424 | sk->sk_state_change(sk); | |
425 | ||
426 | hci_dev_put(hdev); | |
427 | } | |
428 | bh_unlock_sock(sk); | |
429 | } | |
430 | read_unlock(&hci_sk_list.lock); | |
431 | } | |
432 | } | |
433 | ||
1da177e4 LT |
434 | static int hci_sock_release(struct socket *sock) |
435 | { | |
436 | struct sock *sk = sock->sk; | |
7b005bd3 | 437 | struct hci_dev *hdev; |
1da177e4 LT |
438 | |
439 | BT_DBG("sock %p sk %p", sock, sk); | |
440 | ||
441 | if (!sk) | |
442 | return 0; | |
443 | ||
7b005bd3 MH |
444 | hdev = hci_pi(sk)->hdev; |
445 | ||
cd82e61c MH |
446 | if (hci_pi(sk)->channel == HCI_CHANNEL_MONITOR) |
447 | atomic_dec(&monitor_promisc); | |
448 | ||
1da177e4 LT |
449 | bt_sock_unlink(&hci_sk_list, sk); |
450 | ||
451 | if (hdev) { | |
452 | atomic_dec(&hdev->promisc); | |
453 | hci_dev_put(hdev); | |
454 | } | |
455 | ||
456 | sock_orphan(sk); | |
457 | ||
458 | skb_queue_purge(&sk->sk_receive_queue); | |
459 | skb_queue_purge(&sk->sk_write_queue); | |
460 | ||
461 | sock_put(sk); | |
462 | return 0; | |
463 | } | |
464 | ||
b2a66aad | 465 | static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg) |
f0358568 JH |
466 | { |
467 | bdaddr_t bdaddr; | |
5e762444 | 468 | int err; |
f0358568 JH |
469 | |
470 | if (copy_from_user(&bdaddr, arg, sizeof(bdaddr))) | |
471 | return -EFAULT; | |
472 | ||
09fd0de5 | 473 | hci_dev_lock(hdev); |
5e762444 | 474 | |
88c1fe4b | 475 | err = hci_blacklist_add(hdev, &bdaddr, 0); |
5e762444 | 476 | |
09fd0de5 | 477 | hci_dev_unlock(hdev); |
5e762444 AJ |
478 | |
479 | return err; | |
f0358568 JH |
480 | } |
481 | ||
b2a66aad | 482 | static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg) |
f0358568 JH |
483 | { |
484 | bdaddr_t bdaddr; | |
5e762444 | 485 | int err; |
f0358568 JH |
486 | |
487 | if (copy_from_user(&bdaddr, arg, sizeof(bdaddr))) | |
488 | return -EFAULT; | |
489 | ||
09fd0de5 | 490 | hci_dev_lock(hdev); |
5e762444 | 491 | |
88c1fe4b | 492 | err = hci_blacklist_del(hdev, &bdaddr, 0); |
5e762444 | 493 | |
09fd0de5 | 494 | hci_dev_unlock(hdev); |
5e762444 AJ |
495 | |
496 | return err; | |
f0358568 JH |
497 | } |
498 | ||
8e87d142 | 499 | /* Ioctls that require bound socket */ |
6039aa73 GP |
500 | static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, |
501 | unsigned long arg) | |
1da177e4 LT |
502 | { |
503 | struct hci_dev *hdev = hci_pi(sk)->hdev; | |
504 | ||
505 | if (!hdev) | |
506 | return -EBADFD; | |
507 | ||
508 | switch (cmd) { | |
509 | case HCISETRAW: | |
510 | if (!capable(CAP_NET_ADMIN)) | |
511 | return -EACCES; | |
512 | ||
513 | if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) | |
514 | return -EPERM; | |
515 | ||
516 | if (arg) | |
517 | set_bit(HCI_RAW, &hdev->flags); | |
518 | else | |
519 | clear_bit(HCI_RAW, &hdev->flags); | |
520 | ||
521 | return 0; | |
522 | ||
1da177e4 | 523 | case HCIGETCONNINFO: |
40be492f MH |
524 | return hci_get_conn_info(hdev, (void __user *) arg); |
525 | ||
526 | case HCIGETAUTHINFO: | |
527 | return hci_get_auth_info(hdev, (void __user *) arg); | |
1da177e4 | 528 | |
f0358568 JH |
529 | case HCIBLOCKADDR: |
530 | if (!capable(CAP_NET_ADMIN)) | |
531 | return -EACCES; | |
b2a66aad | 532 | return hci_sock_blacklist_add(hdev, (void __user *) arg); |
f0358568 JH |
533 | |
534 | case HCIUNBLOCKADDR: | |
535 | if (!capable(CAP_NET_ADMIN)) | |
536 | return -EACCES; | |
b2a66aad | 537 | return hci_sock_blacklist_del(hdev, (void __user *) arg); |
f0358568 | 538 | |
1da177e4 LT |
539 | default: |
540 | if (hdev->ioctl) | |
541 | return hdev->ioctl(hdev, cmd, arg); | |
542 | return -EINVAL; | |
543 | } | |
544 | } | |
545 | ||
8fc9ced3 GP |
546 | static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, |
547 | unsigned long arg) | |
1da177e4 LT |
548 | { |
549 | struct sock *sk = sock->sk; | |
40be492f | 550 | void __user *argp = (void __user *) arg; |
1da177e4 LT |
551 | int err; |
552 | ||
553 | BT_DBG("cmd %x arg %lx", cmd, arg); | |
554 | ||
555 | switch (cmd) { | |
556 | case HCIGETDEVLIST: | |
557 | return hci_get_dev_list(argp); | |
558 | ||
559 | case HCIGETDEVINFO: | |
560 | return hci_get_dev_info(argp); | |
561 | ||
562 | case HCIGETCONNLIST: | |
563 | return hci_get_conn_list(argp); | |
564 | ||
565 | case HCIDEVUP: | |
566 | if (!capable(CAP_NET_ADMIN)) | |
567 | return -EACCES; | |
568 | return hci_dev_open(arg); | |
569 | ||
570 | case HCIDEVDOWN: | |
571 | if (!capable(CAP_NET_ADMIN)) | |
572 | return -EACCES; | |
573 | return hci_dev_close(arg); | |
574 | ||
575 | case HCIDEVRESET: | |
576 | if (!capable(CAP_NET_ADMIN)) | |
577 | return -EACCES; | |
578 | return hci_dev_reset(arg); | |
579 | ||
580 | case HCIDEVRESTAT: | |
581 | if (!capable(CAP_NET_ADMIN)) | |
582 | return -EACCES; | |
583 | return hci_dev_reset_stat(arg); | |
584 | ||
585 | case HCISETSCAN: | |
586 | case HCISETAUTH: | |
587 | case HCISETENCRYPT: | |
588 | case HCISETPTYPE: | |
589 | case HCISETLINKPOL: | |
590 | case HCISETLINKMODE: | |
591 | case HCISETACLMTU: | |
592 | case HCISETSCOMTU: | |
593 | if (!capable(CAP_NET_ADMIN)) | |
594 | return -EACCES; | |
595 | return hci_dev_cmd(cmd, argp); | |
596 | ||
597 | case HCIINQUIRY: | |
598 | return hci_inquiry(argp); | |
599 | ||
600 | default: | |
601 | lock_sock(sk); | |
602 | err = hci_sock_bound_ioctl(sk, cmd, arg); | |
603 | release_sock(sk); | |
604 | return err; | |
605 | } | |
606 | } | |
607 | ||
8fc9ced3 GP |
608 | static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, |
609 | int addr_len) | |
1da177e4 | 610 | { |
0381101f | 611 | struct sockaddr_hci haddr; |
1da177e4 LT |
612 | struct sock *sk = sock->sk; |
613 | struct hci_dev *hdev = NULL; | |
0381101f | 614 | int len, err = 0; |
1da177e4 LT |
615 | |
616 | BT_DBG("sock %p sk %p", sock, sk); | |
617 | ||
0381101f JH |
618 | if (!addr) |
619 | return -EINVAL; | |
620 | ||
621 | memset(&haddr, 0, sizeof(haddr)); | |
622 | len = min_t(unsigned int, sizeof(haddr), addr_len); | |
623 | memcpy(&haddr, addr, len); | |
624 | ||
625 | if (haddr.hci_family != AF_BLUETOOTH) | |
626 | return -EINVAL; | |
627 | ||
1da177e4 LT |
628 | lock_sock(sk); |
629 | ||
7cc2ade2 | 630 | if (sk->sk_state == BT_BOUND) { |
1da177e4 LT |
631 | err = -EALREADY; |
632 | goto done; | |
633 | } | |
634 | ||
7cc2ade2 MH |
635 | switch (haddr.hci_channel) { |
636 | case HCI_CHANNEL_RAW: | |
637 | if (hci_pi(sk)->hdev) { | |
638 | err = -EALREADY; | |
1da177e4 LT |
639 | goto done; |
640 | } | |
641 | ||
7cc2ade2 MH |
642 | if (haddr.hci_dev != HCI_DEV_NONE) { |
643 | hdev = hci_dev_get(haddr.hci_dev); | |
644 | if (!hdev) { | |
645 | err = -ENODEV; | |
646 | goto done; | |
647 | } | |
648 | ||
649 | atomic_inc(&hdev->promisc); | |
650 | } | |
651 | ||
652 | hci_pi(sk)->hdev = hdev; | |
653 | break; | |
654 | ||
655 | case HCI_CHANNEL_CONTROL: | |
4b95a24c | 656 | if (haddr.hci_dev != HCI_DEV_NONE) { |
7cc2ade2 MH |
657 | err = -EINVAL; |
658 | goto done; | |
659 | } | |
660 | ||
801f13bd MH |
661 | if (!capable(CAP_NET_ADMIN)) { |
662 | err = -EPERM; | |
663 | goto done; | |
664 | } | |
665 | ||
7cc2ade2 MH |
666 | break; |
667 | ||
cd82e61c MH |
668 | case HCI_CHANNEL_MONITOR: |
669 | if (haddr.hci_dev != HCI_DEV_NONE) { | |
670 | err = -EINVAL; | |
671 | goto done; | |
672 | } | |
673 | ||
674 | if (!capable(CAP_NET_RAW)) { | |
675 | err = -EPERM; | |
676 | goto done; | |
677 | } | |
678 | ||
679 | send_monitor_replay(sk); | |
680 | ||
681 | atomic_inc(&monitor_promisc); | |
682 | break; | |
683 | ||
7cc2ade2 MH |
684 | default: |
685 | err = -EINVAL; | |
686 | goto done; | |
1da177e4 LT |
687 | } |
688 | ||
7cc2ade2 | 689 | |
0381101f | 690 | hci_pi(sk)->channel = haddr.hci_channel; |
1da177e4 LT |
691 | sk->sk_state = BT_BOUND; |
692 | ||
693 | done: | |
694 | release_sock(sk); | |
695 | return err; | |
696 | } | |
697 | ||
8fc9ced3 GP |
698 | static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, |
699 | int *addr_len, int peer) | |
1da177e4 LT |
700 | { |
701 | struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr; | |
702 | struct sock *sk = sock->sk; | |
7b005bd3 | 703 | struct hci_dev *hdev = hci_pi(sk)->hdev; |
1da177e4 LT |
704 | |
705 | BT_DBG("sock %p sk %p", sock, sk); | |
706 | ||
7b005bd3 MH |
707 | if (!hdev) |
708 | return -EBADFD; | |
709 | ||
1da177e4 LT |
710 | lock_sock(sk); |
711 | ||
712 | *addr_len = sizeof(*haddr); | |
713 | haddr->hci_family = AF_BLUETOOTH; | |
7b005bd3 | 714 | haddr->hci_dev = hdev->id; |
1da177e4 LT |
715 | |
716 | release_sock(sk); | |
717 | return 0; | |
718 | } | |
719 | ||
6039aa73 GP |
720 | static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, |
721 | struct sk_buff *skb) | |
1da177e4 LT |
722 | { |
723 | __u32 mask = hci_pi(sk)->cmsg_mask; | |
724 | ||
0d48d939 MH |
725 | if (mask & HCI_CMSG_DIR) { |
726 | int incoming = bt_cb(skb)->incoming; | |
8fc9ced3 GP |
727 | put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming), |
728 | &incoming); | |
0d48d939 | 729 | } |
1da177e4 | 730 | |
a61bbcf2 | 731 | if (mask & HCI_CMSG_TSTAMP) { |
f6e623a6 JFS |
732 | #ifdef CONFIG_COMPAT |
733 | struct compat_timeval ctv; | |
734 | #endif | |
a61bbcf2 | 735 | struct timeval tv; |
767c5eb5 MH |
736 | void *data; |
737 | int len; | |
a61bbcf2 PM |
738 | |
739 | skb_get_timestamp(skb, &tv); | |
767c5eb5 | 740 | |
1da97f83 DM |
741 | data = &tv; |
742 | len = sizeof(tv); | |
743 | #ifdef CONFIG_COMPAT | |
da88cea1 L |
744 | if (!COMPAT_USE_64BIT_TIME && |
745 | (msg->msg_flags & MSG_CMSG_COMPAT)) { | |
767c5eb5 MH |
746 | ctv.tv_sec = tv.tv_sec; |
747 | ctv.tv_usec = tv.tv_usec; | |
748 | data = &ctv; | |
749 | len = sizeof(ctv); | |
767c5eb5 | 750 | } |
1da97f83 | 751 | #endif |
767c5eb5 MH |
752 | |
753 | put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, len, data); | |
a61bbcf2 | 754 | } |
1da177e4 | 755 | } |
8e87d142 YH |
756 | |
757 | static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock, | |
3bb3c755 | 758 | struct msghdr *msg, size_t len, int flags) |
1da177e4 LT |
759 | { |
760 | int noblock = flags & MSG_DONTWAIT; | |
761 | struct sock *sk = sock->sk; | |
762 | struct sk_buff *skb; | |
763 | int copied, err; | |
764 | ||
765 | BT_DBG("sock %p, sk %p", sock, sk); | |
766 | ||
767 | if (flags & (MSG_OOB)) | |
768 | return -EOPNOTSUPP; | |
769 | ||
770 | if (sk->sk_state == BT_CLOSED) | |
771 | return 0; | |
772 | ||
70f23020 AE |
773 | skb = skb_recv_datagram(sk, flags, noblock, &err); |
774 | if (!skb) | |
1da177e4 LT |
775 | return err; |
776 | ||
777 | msg->msg_namelen = 0; | |
778 | ||
779 | copied = skb->len; | |
780 | if (len < copied) { | |
781 | msg->msg_flags |= MSG_TRUNC; | |
782 | copied = len; | |
783 | } | |
784 | ||
badff6d0 | 785 | skb_reset_transport_header(skb); |
1da177e4 LT |
786 | err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); |
787 | ||
3a208627 MH |
788 | switch (hci_pi(sk)->channel) { |
789 | case HCI_CHANNEL_RAW: | |
790 | hci_sock_cmsg(sk, msg, skb); | |
791 | break; | |
97e0bdeb | 792 | case HCI_CHANNEL_CONTROL: |
cd82e61c MH |
793 | case HCI_CHANNEL_MONITOR: |
794 | sock_recv_timestamp(msg, sk, skb); | |
795 | break; | |
3a208627 | 796 | } |
1da177e4 LT |
797 | |
798 | skb_free_datagram(sk, skb); | |
799 | ||
800 | return err ? : copied; | |
801 | } | |
802 | ||
8e87d142 | 803 | static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
1da177e4 LT |
804 | struct msghdr *msg, size_t len) |
805 | { | |
806 | struct sock *sk = sock->sk; | |
807 | struct hci_dev *hdev; | |
808 | struct sk_buff *skb; | |
809 | int err; | |
810 | ||
811 | BT_DBG("sock %p sk %p", sock, sk); | |
812 | ||
813 | if (msg->msg_flags & MSG_OOB) | |
814 | return -EOPNOTSUPP; | |
815 | ||
816 | if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE)) | |
817 | return -EINVAL; | |
818 | ||
819 | if (len < 4 || len > HCI_MAX_FRAME_SIZE) | |
820 | return -EINVAL; | |
821 | ||
822 | lock_sock(sk); | |
823 | ||
0381101f JH |
824 | switch (hci_pi(sk)->channel) { |
825 | case HCI_CHANNEL_RAW: | |
826 | break; | |
827 | case HCI_CHANNEL_CONTROL: | |
828 | err = mgmt_control(sk, msg, len); | |
829 | goto done; | |
cd82e61c MH |
830 | case HCI_CHANNEL_MONITOR: |
831 | err = -EOPNOTSUPP; | |
832 | goto done; | |
0381101f JH |
833 | default: |
834 | err = -EINVAL; | |
835 | goto done; | |
836 | } | |
837 | ||
70f23020 AE |
838 | hdev = hci_pi(sk)->hdev; |
839 | if (!hdev) { | |
1da177e4 LT |
840 | err = -EBADFD; |
841 | goto done; | |
842 | } | |
843 | ||
7e21addc MH |
844 | if (!test_bit(HCI_UP, &hdev->flags)) { |
845 | err = -ENETDOWN; | |
846 | goto done; | |
847 | } | |
848 | ||
70f23020 AE |
849 | skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); |
850 | if (!skb) | |
1da177e4 LT |
851 | goto done; |
852 | ||
853 | if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { | |
854 | err = -EFAULT; | |
855 | goto drop; | |
856 | } | |
857 | ||
0d48d939 | 858 | bt_cb(skb)->pkt_type = *((unsigned char *) skb->data); |
1da177e4 LT |
859 | skb_pull(skb, 1); |
860 | skb->dev = (void *) hdev; | |
861 | ||
0d48d939 | 862 | if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) { |
83985319 | 863 | u16 opcode = get_unaligned_le16(skb->data); |
1da177e4 LT |
864 | u16 ogf = hci_opcode_ogf(opcode); |
865 | u16 ocf = hci_opcode_ocf(opcode); | |
866 | ||
867 | if (((ogf > HCI_SFLT_MAX_OGF) || | |
3bb3c755 GP |
868 | !hci_test_bit(ocf & HCI_FLT_OCF_BITS, |
869 | &hci_sec_filter.ocf_mask[ogf])) && | |
870 | !capable(CAP_NET_RAW)) { | |
1da177e4 LT |
871 | err = -EPERM; |
872 | goto drop; | |
873 | } | |
874 | ||
a9de9248 | 875 | if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) { |
1da177e4 | 876 | skb_queue_tail(&hdev->raw_q, skb); |
3eff45ea | 877 | queue_work(hdev->workqueue, &hdev->tx_work); |
1da177e4 LT |
878 | } else { |
879 | skb_queue_tail(&hdev->cmd_q, skb); | |
c347b765 | 880 | queue_work(hdev->workqueue, &hdev->cmd_work); |
1da177e4 LT |
881 | } |
882 | } else { | |
883 | if (!capable(CAP_NET_RAW)) { | |
884 | err = -EPERM; | |
885 | goto drop; | |
886 | } | |
887 | ||
888 | skb_queue_tail(&hdev->raw_q, skb); | |
3eff45ea | 889 | queue_work(hdev->workqueue, &hdev->tx_work); |
1da177e4 LT |
890 | } |
891 | ||
892 | err = len; | |
893 | ||
894 | done: | |
895 | release_sock(sk); | |
896 | return err; | |
897 | ||
898 | drop: | |
899 | kfree_skb(skb); | |
900 | goto done; | |
901 | } | |
902 | ||
8fc9ced3 GP |
903 | static int hci_sock_setsockopt(struct socket *sock, int level, int optname, |
904 | char __user *optval, unsigned int len) | |
1da177e4 LT |
905 | { |
906 | struct hci_ufilter uf = { .opcode = 0 }; | |
907 | struct sock *sk = sock->sk; | |
908 | int err = 0, opt = 0; | |
909 | ||
910 | BT_DBG("sk %p, opt %d", sk, optname); | |
911 | ||
912 | lock_sock(sk); | |
913 | ||
2f39cdb7 MH |
914 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { |
915 | err = -EINVAL; | |
916 | goto done; | |
917 | } | |
918 | ||
1da177e4 LT |
919 | switch (optname) { |
920 | case HCI_DATA_DIR: | |
921 | if (get_user(opt, (int __user *)optval)) { | |
922 | err = -EFAULT; | |
923 | break; | |
924 | } | |
925 | ||
926 | if (opt) | |
927 | hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR; | |
928 | else | |
929 | hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR; | |
930 | break; | |
931 | ||
932 | case HCI_TIME_STAMP: | |
933 | if (get_user(opt, (int __user *)optval)) { | |
934 | err = -EFAULT; | |
935 | break; | |
936 | } | |
937 | ||
938 | if (opt) | |
939 | hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP; | |
940 | else | |
941 | hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP; | |
942 | break; | |
943 | ||
944 | case HCI_FILTER: | |
0878b666 MH |
945 | { |
946 | struct hci_filter *f = &hci_pi(sk)->filter; | |
947 | ||
948 | uf.type_mask = f->type_mask; | |
949 | uf.opcode = f->opcode; | |
950 | uf.event_mask[0] = *((u32 *) f->event_mask + 0); | |
951 | uf.event_mask[1] = *((u32 *) f->event_mask + 1); | |
952 | } | |
953 | ||
1da177e4 LT |
954 | len = min_t(unsigned int, len, sizeof(uf)); |
955 | if (copy_from_user(&uf, optval, len)) { | |
956 | err = -EFAULT; | |
957 | break; | |
958 | } | |
959 | ||
960 | if (!capable(CAP_NET_RAW)) { | |
961 | uf.type_mask &= hci_sec_filter.type_mask; | |
962 | uf.event_mask[0] &= *((u32 *) hci_sec_filter.event_mask + 0); | |
963 | uf.event_mask[1] &= *((u32 *) hci_sec_filter.event_mask + 1); | |
964 | } | |
965 | ||
966 | { | |
967 | struct hci_filter *f = &hci_pi(sk)->filter; | |
968 | ||
969 | f->type_mask = uf.type_mask; | |
970 | f->opcode = uf.opcode; | |
971 | *((u32 *) f->event_mask + 0) = uf.event_mask[0]; | |
972 | *((u32 *) f->event_mask + 1) = uf.event_mask[1]; | |
973 | } | |
8e87d142 | 974 | break; |
1da177e4 LT |
975 | |
976 | default: | |
977 | err = -ENOPROTOOPT; | |
978 | break; | |
979 | } | |
980 | ||
2f39cdb7 | 981 | done: |
1da177e4 LT |
982 | release_sock(sk); |
983 | return err; | |
984 | } | |
985 | ||
8fc9ced3 GP |
986 | static int hci_sock_getsockopt(struct socket *sock, int level, int optname, |
987 | char __user *optval, int __user *optlen) | |
1da177e4 LT |
988 | { |
989 | struct hci_ufilter uf; | |
990 | struct sock *sk = sock->sk; | |
cedc5469 MH |
991 | int len, opt, err = 0; |
992 | ||
993 | BT_DBG("sk %p, opt %d", sk, optname); | |
1da177e4 LT |
994 | |
995 | if (get_user(len, optlen)) | |
996 | return -EFAULT; | |
997 | ||
cedc5469 MH |
998 | lock_sock(sk); |
999 | ||
1000 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { | |
1001 | err = -EINVAL; | |
1002 | goto done; | |
1003 | } | |
1004 | ||
1da177e4 LT |
1005 | switch (optname) { |
1006 | case HCI_DATA_DIR: | |
1007 | if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR) | |
1008 | opt = 1; | |
8e87d142 | 1009 | else |
1da177e4 LT |
1010 | opt = 0; |
1011 | ||
1012 | if (put_user(opt, optval)) | |
cedc5469 | 1013 | err = -EFAULT; |
1da177e4 LT |
1014 | break; |
1015 | ||
1016 | case HCI_TIME_STAMP: | |
1017 | if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP) | |
1018 | opt = 1; | |
8e87d142 | 1019 | else |
1da177e4 LT |
1020 | opt = 0; |
1021 | ||
1022 | if (put_user(opt, optval)) | |
cedc5469 | 1023 | err = -EFAULT; |
1da177e4 LT |
1024 | break; |
1025 | ||
1026 | case HCI_FILTER: | |
1027 | { | |
1028 | struct hci_filter *f = &hci_pi(sk)->filter; | |
1029 | ||
1030 | uf.type_mask = f->type_mask; | |
1031 | uf.opcode = f->opcode; | |
1032 | uf.event_mask[0] = *((u32 *) f->event_mask + 0); | |
1033 | uf.event_mask[1] = *((u32 *) f->event_mask + 1); | |
1034 | } | |
1035 | ||
1036 | len = min_t(unsigned int, len, sizeof(uf)); | |
1037 | if (copy_to_user(optval, &uf, len)) | |
cedc5469 | 1038 | err = -EFAULT; |
1da177e4 LT |
1039 | break; |
1040 | ||
1041 | default: | |
cedc5469 | 1042 | err = -ENOPROTOOPT; |
1da177e4 LT |
1043 | break; |
1044 | } | |
1045 | ||
cedc5469 MH |
1046 | done: |
1047 | release_sock(sk); | |
1048 | return err; | |
1da177e4 LT |
1049 | } |
1050 | ||
90ddc4f0 | 1051 | static const struct proto_ops hci_sock_ops = { |
1da177e4 LT |
1052 | .family = PF_BLUETOOTH, |
1053 | .owner = THIS_MODULE, | |
1054 | .release = hci_sock_release, | |
1055 | .bind = hci_sock_bind, | |
1056 | .getname = hci_sock_getname, | |
1057 | .sendmsg = hci_sock_sendmsg, | |
1058 | .recvmsg = hci_sock_recvmsg, | |
1059 | .ioctl = hci_sock_ioctl, | |
1060 | .poll = datagram_poll, | |
1061 | .listen = sock_no_listen, | |
1062 | .shutdown = sock_no_shutdown, | |
1063 | .setsockopt = hci_sock_setsockopt, | |
1064 | .getsockopt = hci_sock_getsockopt, | |
1065 | .connect = sock_no_connect, | |
1066 | .socketpair = sock_no_socketpair, | |
1067 | .accept = sock_no_accept, | |
1068 | .mmap = sock_no_mmap | |
1069 | }; | |
1070 | ||
1071 | static struct proto hci_sk_proto = { | |
1072 | .name = "HCI", | |
1073 | .owner = THIS_MODULE, | |
1074 | .obj_size = sizeof(struct hci_pinfo) | |
1075 | }; | |
1076 | ||
3f378b68 EP |
1077 | static int hci_sock_create(struct net *net, struct socket *sock, int protocol, |
1078 | int kern) | |
1da177e4 LT |
1079 | { |
1080 | struct sock *sk; | |
1081 | ||
1082 | BT_DBG("sock %p", sock); | |
1083 | ||
1084 | if (sock->type != SOCK_RAW) | |
1085 | return -ESOCKTNOSUPPORT; | |
1086 | ||
1087 | sock->ops = &hci_sock_ops; | |
1088 | ||
6257ff21 | 1089 | sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto); |
1da177e4 LT |
1090 | if (!sk) |
1091 | return -ENOMEM; | |
1092 | ||
1093 | sock_init_data(sock, sk); | |
1094 | ||
1095 | sock_reset_flag(sk, SOCK_ZAPPED); | |
1096 | ||
1097 | sk->sk_protocol = protocol; | |
1098 | ||
1099 | sock->state = SS_UNCONNECTED; | |
1100 | sk->sk_state = BT_OPEN; | |
1101 | ||
1102 | bt_sock_link(&hci_sk_list, sk); | |
1103 | return 0; | |
1104 | } | |
1105 | ||
ec1b4cf7 | 1106 | static const struct net_proto_family hci_sock_family_ops = { |
1da177e4 LT |
1107 | .family = PF_BLUETOOTH, |
1108 | .owner = THIS_MODULE, | |
1109 | .create = hci_sock_create, | |
1110 | }; | |
1111 | ||
1da177e4 LT |
1112 | int __init hci_sock_init(void) |
1113 | { | |
1114 | int err; | |
1115 | ||
1116 | err = proto_register(&hci_sk_proto, 0); | |
1117 | if (err < 0) | |
1118 | return err; | |
1119 | ||
1120 | err = bt_sock_register(BTPROTO_HCI, &hci_sock_family_ops); | |
1121 | if (err < 0) | |
1122 | goto error; | |
1123 | ||
1da177e4 LT |
1124 | BT_INFO("HCI socket layer initialized"); |
1125 | ||
1126 | return 0; | |
1127 | ||
1128 | error: | |
1129 | BT_ERR("HCI socket registration failed"); | |
1130 | proto_unregister(&hci_sk_proto); | |
1131 | return err; | |
1132 | } | |
1133 | ||
b7440a14 | 1134 | void hci_sock_cleanup(void) |
1da177e4 LT |
1135 | { |
1136 | if (bt_sock_unregister(BTPROTO_HCI) < 0) | |
1137 | BT_ERR("HCI socket unregistration failed"); | |
1138 | ||
1da177e4 | 1139 | proto_unregister(&hci_sk_proto); |
1da177e4 | 1140 | } |