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 | ||
f81fe64f MH |
69 | static bool is_filtered_packet(struct sock *sk, struct sk_buff *skb) |
70 | { | |
71 | struct hci_filter *flt; | |
72 | int flt_type, flt_event; | |
73 | ||
74 | /* Apply filter */ | |
75 | flt = &hci_pi(sk)->filter; | |
76 | ||
77 | if (bt_cb(skb)->pkt_type == HCI_VENDOR_PKT) | |
78 | flt_type = 0; | |
79 | else | |
80 | flt_type = bt_cb(skb)->pkt_type & HCI_FLT_TYPE_BITS; | |
81 | ||
82 | if (!test_bit(flt_type, &flt->type_mask)) | |
83 | return true; | |
84 | ||
85 | /* Extra filter for event packets only */ | |
86 | if (bt_cb(skb)->pkt_type != HCI_EVENT_PKT) | |
87 | return false; | |
88 | ||
89 | flt_event = (*(__u8 *)skb->data & HCI_FLT_EVENT_BITS); | |
90 | ||
91 | if (!hci_test_bit(flt_event, &flt->event_mask)) | |
92 | return true; | |
93 | ||
94 | /* Check filter only when opcode is set */ | |
95 | if (!flt->opcode) | |
96 | return false; | |
97 | ||
98 | if (flt_event == HCI_EV_CMD_COMPLETE && | |
99 | flt->opcode != get_unaligned((__le16 *)(skb->data + 3))) | |
100 | return true; | |
101 | ||
102 | if (flt_event == HCI_EV_CMD_STATUS && | |
103 | flt->opcode != get_unaligned((__le16 *)(skb->data + 4))) | |
104 | return true; | |
105 | ||
106 | return false; | |
107 | } | |
108 | ||
1da177e4 | 109 | /* Send frame to RAW socket */ |
470fe1b5 | 110 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb) |
1da177e4 LT |
111 | { |
112 | struct sock *sk; | |
e0edf373 | 113 | struct sk_buff *skb_copy = NULL; |
1da177e4 LT |
114 | |
115 | BT_DBG("hdev %p len %d", hdev, skb->len); | |
116 | ||
117 | read_lock(&hci_sk_list.lock); | |
470fe1b5 | 118 | |
b67bfe0d | 119 | sk_for_each(sk, &hci_sk_list.head) { |
1da177e4 LT |
120 | struct sk_buff *nskb; |
121 | ||
122 | if (sk->sk_state != BT_BOUND || hci_pi(sk)->hdev != hdev) | |
123 | continue; | |
124 | ||
125 | /* Don't send frame to the socket it came from */ | |
126 | if (skb->sk == sk) | |
127 | continue; | |
128 | ||
470fe1b5 | 129 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) |
a40c406c JH |
130 | continue; |
131 | ||
f81fe64f | 132 | if (is_filtered_packet(sk, skb)) |
1da177e4 LT |
133 | continue; |
134 | ||
e0edf373 MH |
135 | if (!skb_copy) { |
136 | /* Create a private copy with headroom */ | |
137 | skb_copy = __pskb_copy(skb, 1, GFP_ATOMIC); | |
138 | if (!skb_copy) | |
139 | continue; | |
140 | ||
141 | /* Put type byte before the data */ | |
142 | memcpy(skb_push(skb_copy, 1), &bt_cb(skb)->pkt_type, 1); | |
143 | } | |
144 | ||
145 | nskb = skb_clone(skb_copy, GFP_ATOMIC); | |
70f23020 | 146 | if (!nskb) |
1da177e4 LT |
147 | continue; |
148 | ||
470fe1b5 MH |
149 | if (sock_queue_rcv_skb(sk, nskb)) |
150 | kfree_skb(nskb); | |
151 | } | |
152 | ||
153 | read_unlock(&hci_sk_list.lock); | |
e0edf373 MH |
154 | |
155 | kfree_skb(skb_copy); | |
470fe1b5 MH |
156 | } |
157 | ||
158 | /* Send frame to control socket */ | |
159 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk) | |
160 | { | |
161 | struct sock *sk; | |
470fe1b5 MH |
162 | |
163 | BT_DBG("len %d", skb->len); | |
164 | ||
165 | read_lock(&hci_sk_list.lock); | |
166 | ||
b67bfe0d | 167 | sk_for_each(sk, &hci_sk_list.head) { |
470fe1b5 MH |
168 | struct sk_buff *nskb; |
169 | ||
170 | /* Skip the original socket */ | |
171 | if (sk == skip_sk) | |
172 | continue; | |
173 | ||
174 | if (sk->sk_state != BT_BOUND) | |
175 | continue; | |
176 | ||
177 | if (hci_pi(sk)->channel != HCI_CHANNEL_CONTROL) | |
178 | continue; | |
179 | ||
180 | nskb = skb_clone(skb, GFP_ATOMIC); | |
181 | if (!nskb) | |
182 | continue; | |
1da177e4 LT |
183 | |
184 | if (sock_queue_rcv_skb(sk, nskb)) | |
185 | kfree_skb(nskb); | |
186 | } | |
470fe1b5 | 187 | |
1da177e4 LT |
188 | read_unlock(&hci_sk_list.lock); |
189 | } | |
190 | ||
cd82e61c MH |
191 | /* Send frame to monitor socket */ |
192 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb) | |
193 | { | |
194 | struct sock *sk; | |
cd82e61c MH |
195 | struct sk_buff *skb_copy = NULL; |
196 | __le16 opcode; | |
197 | ||
198 | if (!atomic_read(&monitor_promisc)) | |
199 | return; | |
200 | ||
201 | BT_DBG("hdev %p len %d", hdev, skb->len); | |
202 | ||
203 | switch (bt_cb(skb)->pkt_type) { | |
204 | case HCI_COMMAND_PKT: | |
205 | opcode = __constant_cpu_to_le16(HCI_MON_COMMAND_PKT); | |
206 | break; | |
207 | case HCI_EVENT_PKT: | |
208 | opcode = __constant_cpu_to_le16(HCI_MON_EVENT_PKT); | |
209 | break; | |
210 | case HCI_ACLDATA_PKT: | |
211 | if (bt_cb(skb)->incoming) | |
212 | opcode = __constant_cpu_to_le16(HCI_MON_ACL_RX_PKT); | |
213 | else | |
214 | opcode = __constant_cpu_to_le16(HCI_MON_ACL_TX_PKT); | |
215 | break; | |
216 | case HCI_SCODATA_PKT: | |
217 | if (bt_cb(skb)->incoming) | |
218 | opcode = __constant_cpu_to_le16(HCI_MON_SCO_RX_PKT); | |
219 | else | |
220 | opcode = __constant_cpu_to_le16(HCI_MON_SCO_TX_PKT); | |
221 | break; | |
222 | default: | |
223 | return; | |
224 | } | |
225 | ||
226 | read_lock(&hci_sk_list.lock); | |
227 | ||
b67bfe0d | 228 | sk_for_each(sk, &hci_sk_list.head) { |
cd82e61c MH |
229 | struct sk_buff *nskb; |
230 | ||
231 | if (sk->sk_state != BT_BOUND) | |
232 | continue; | |
233 | ||
234 | if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR) | |
235 | continue; | |
236 | ||
237 | if (!skb_copy) { | |
238 | struct hci_mon_hdr *hdr; | |
239 | ||
240 | /* Create a private copy with headroom */ | |
8fc9ced3 GP |
241 | skb_copy = __pskb_copy(skb, HCI_MON_HDR_SIZE, |
242 | GFP_ATOMIC); | |
cd82e61c MH |
243 | if (!skb_copy) |
244 | continue; | |
245 | ||
246 | /* Put header before the data */ | |
247 | hdr = (void *) skb_push(skb_copy, HCI_MON_HDR_SIZE); | |
248 | hdr->opcode = opcode; | |
249 | hdr->index = cpu_to_le16(hdev->id); | |
250 | hdr->len = cpu_to_le16(skb->len); | |
251 | } | |
252 | ||
253 | nskb = skb_clone(skb_copy, GFP_ATOMIC); | |
254 | if (!nskb) | |
255 | continue; | |
256 | ||
257 | if (sock_queue_rcv_skb(sk, nskb)) | |
258 | kfree_skb(nskb); | |
259 | } | |
260 | ||
261 | read_unlock(&hci_sk_list.lock); | |
262 | ||
263 | kfree_skb(skb_copy); | |
264 | } | |
265 | ||
266 | static void send_monitor_event(struct sk_buff *skb) | |
267 | { | |
268 | struct sock *sk; | |
cd82e61c MH |
269 | |
270 | BT_DBG("len %d", skb->len); | |
271 | ||
272 | read_lock(&hci_sk_list.lock); | |
273 | ||
b67bfe0d | 274 | sk_for_each(sk, &hci_sk_list.head) { |
cd82e61c MH |
275 | struct sk_buff *nskb; |
276 | ||
277 | if (sk->sk_state != BT_BOUND) | |
278 | continue; | |
279 | ||
280 | if (hci_pi(sk)->channel != HCI_CHANNEL_MONITOR) | |
281 | continue; | |
282 | ||
283 | nskb = skb_clone(skb, GFP_ATOMIC); | |
284 | if (!nskb) | |
285 | continue; | |
286 | ||
287 | if (sock_queue_rcv_skb(sk, nskb)) | |
288 | kfree_skb(nskb); | |
289 | } | |
290 | ||
291 | read_unlock(&hci_sk_list.lock); | |
292 | } | |
293 | ||
294 | static struct sk_buff *create_monitor_event(struct hci_dev *hdev, int event) | |
295 | { | |
296 | struct hci_mon_hdr *hdr; | |
297 | struct hci_mon_new_index *ni; | |
298 | struct sk_buff *skb; | |
299 | __le16 opcode; | |
300 | ||
301 | switch (event) { | |
302 | case HCI_DEV_REG: | |
303 | skb = bt_skb_alloc(HCI_MON_NEW_INDEX_SIZE, GFP_ATOMIC); | |
304 | if (!skb) | |
305 | return NULL; | |
306 | ||
307 | ni = (void *) skb_put(skb, HCI_MON_NEW_INDEX_SIZE); | |
308 | ni->type = hdev->dev_type; | |
309 | ni->bus = hdev->bus; | |
310 | bacpy(&ni->bdaddr, &hdev->bdaddr); | |
311 | memcpy(ni->name, hdev->name, 8); | |
312 | ||
313 | opcode = __constant_cpu_to_le16(HCI_MON_NEW_INDEX); | |
314 | break; | |
315 | ||
316 | case HCI_DEV_UNREG: | |
317 | skb = bt_skb_alloc(0, GFP_ATOMIC); | |
318 | if (!skb) | |
319 | return NULL; | |
320 | ||
321 | opcode = __constant_cpu_to_le16(HCI_MON_DEL_INDEX); | |
322 | break; | |
323 | ||
324 | default: | |
325 | return NULL; | |
326 | } | |
327 | ||
328 | __net_timestamp(skb); | |
329 | ||
330 | hdr = (void *) skb_push(skb, HCI_MON_HDR_SIZE); | |
331 | hdr->opcode = opcode; | |
332 | hdr->index = cpu_to_le16(hdev->id); | |
333 | hdr->len = cpu_to_le16(skb->len - HCI_MON_HDR_SIZE); | |
334 | ||
335 | return skb; | |
336 | } | |
337 | ||
338 | static void send_monitor_replay(struct sock *sk) | |
339 | { | |
340 | struct hci_dev *hdev; | |
341 | ||
342 | read_lock(&hci_dev_list_lock); | |
343 | ||
344 | list_for_each_entry(hdev, &hci_dev_list, list) { | |
345 | struct sk_buff *skb; | |
346 | ||
347 | skb = create_monitor_event(hdev, HCI_DEV_REG); | |
348 | if (!skb) | |
349 | continue; | |
350 | ||
351 | if (sock_queue_rcv_skb(sk, skb)) | |
352 | kfree_skb(skb); | |
353 | } | |
354 | ||
355 | read_unlock(&hci_dev_list_lock); | |
356 | } | |
357 | ||
040030ef MH |
358 | /* Generate internal stack event */ |
359 | static void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data) | |
360 | { | |
361 | struct hci_event_hdr *hdr; | |
362 | struct hci_ev_stack_internal *ev; | |
363 | struct sk_buff *skb; | |
364 | ||
365 | skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC); | |
366 | if (!skb) | |
367 | return; | |
368 | ||
369 | hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE); | |
370 | hdr->evt = HCI_EV_STACK_INTERNAL; | |
371 | hdr->plen = sizeof(*ev) + dlen; | |
372 | ||
373 | ev = (void *) skb_put(skb, sizeof(*ev) + dlen); | |
374 | ev->type = type; | |
375 | memcpy(ev->data, data, dlen); | |
376 | ||
377 | bt_cb(skb)->incoming = 1; | |
378 | __net_timestamp(skb); | |
379 | ||
380 | bt_cb(skb)->pkt_type = HCI_EVENT_PKT; | |
381 | skb->dev = (void *) hdev; | |
382 | hci_send_to_sock(hdev, skb); | |
383 | kfree_skb(skb); | |
384 | } | |
385 | ||
386 | void hci_sock_dev_event(struct hci_dev *hdev, int event) | |
387 | { | |
388 | struct hci_ev_si_device ev; | |
389 | ||
390 | BT_DBG("hdev %s event %d", hdev->name, event); | |
391 | ||
cd82e61c MH |
392 | /* Send event to monitor */ |
393 | if (atomic_read(&monitor_promisc)) { | |
394 | struct sk_buff *skb; | |
395 | ||
396 | skb = create_monitor_event(hdev, event); | |
397 | if (skb) { | |
398 | send_monitor_event(skb); | |
399 | kfree_skb(skb); | |
400 | } | |
401 | } | |
402 | ||
040030ef MH |
403 | /* Send event to sockets */ |
404 | ev.event = event; | |
405 | ev.dev_id = hdev->id; | |
406 | hci_si_event(NULL, HCI_EV_SI_DEVICE, sizeof(ev), &ev); | |
407 | ||
408 | if (event == HCI_DEV_UNREG) { | |
409 | struct sock *sk; | |
040030ef MH |
410 | |
411 | /* Detach sockets from device */ | |
412 | read_lock(&hci_sk_list.lock); | |
b67bfe0d | 413 | sk_for_each(sk, &hci_sk_list.head) { |
040030ef MH |
414 | bh_lock_sock_nested(sk); |
415 | if (hci_pi(sk)->hdev == hdev) { | |
416 | hci_pi(sk)->hdev = NULL; | |
417 | sk->sk_err = EPIPE; | |
418 | sk->sk_state = BT_OPEN; | |
419 | sk->sk_state_change(sk); | |
420 | ||
421 | hci_dev_put(hdev); | |
422 | } | |
423 | bh_unlock_sock(sk); | |
424 | } | |
425 | read_unlock(&hci_sk_list.lock); | |
426 | } | |
427 | } | |
428 | ||
1da177e4 LT |
429 | static int hci_sock_release(struct socket *sock) |
430 | { | |
431 | struct sock *sk = sock->sk; | |
7b005bd3 | 432 | struct hci_dev *hdev; |
1da177e4 LT |
433 | |
434 | BT_DBG("sock %p sk %p", sock, sk); | |
435 | ||
436 | if (!sk) | |
437 | return 0; | |
438 | ||
7b005bd3 MH |
439 | hdev = hci_pi(sk)->hdev; |
440 | ||
cd82e61c MH |
441 | if (hci_pi(sk)->channel == HCI_CHANNEL_MONITOR) |
442 | atomic_dec(&monitor_promisc); | |
443 | ||
1da177e4 LT |
444 | bt_sock_unlink(&hci_sk_list, sk); |
445 | ||
446 | if (hdev) { | |
447 | atomic_dec(&hdev->promisc); | |
448 | hci_dev_put(hdev); | |
449 | } | |
450 | ||
451 | sock_orphan(sk); | |
452 | ||
453 | skb_queue_purge(&sk->sk_receive_queue); | |
454 | skb_queue_purge(&sk->sk_write_queue); | |
455 | ||
456 | sock_put(sk); | |
457 | return 0; | |
458 | } | |
459 | ||
b2a66aad | 460 | static int hci_sock_blacklist_add(struct hci_dev *hdev, void __user *arg) |
f0358568 JH |
461 | { |
462 | bdaddr_t bdaddr; | |
5e762444 | 463 | int err; |
f0358568 JH |
464 | |
465 | if (copy_from_user(&bdaddr, arg, sizeof(bdaddr))) | |
466 | return -EFAULT; | |
467 | ||
09fd0de5 | 468 | hci_dev_lock(hdev); |
5e762444 | 469 | |
88c1fe4b | 470 | err = hci_blacklist_add(hdev, &bdaddr, 0); |
5e762444 | 471 | |
09fd0de5 | 472 | hci_dev_unlock(hdev); |
5e762444 AJ |
473 | |
474 | return err; | |
f0358568 JH |
475 | } |
476 | ||
b2a66aad | 477 | static int hci_sock_blacklist_del(struct hci_dev *hdev, void __user *arg) |
f0358568 JH |
478 | { |
479 | bdaddr_t bdaddr; | |
5e762444 | 480 | int err; |
f0358568 JH |
481 | |
482 | if (copy_from_user(&bdaddr, arg, sizeof(bdaddr))) | |
483 | return -EFAULT; | |
484 | ||
09fd0de5 | 485 | hci_dev_lock(hdev); |
5e762444 | 486 | |
88c1fe4b | 487 | err = hci_blacklist_del(hdev, &bdaddr, 0); |
5e762444 | 488 | |
09fd0de5 | 489 | hci_dev_unlock(hdev); |
5e762444 AJ |
490 | |
491 | return err; | |
f0358568 JH |
492 | } |
493 | ||
8e87d142 | 494 | /* Ioctls that require bound socket */ |
6039aa73 GP |
495 | static int hci_sock_bound_ioctl(struct sock *sk, unsigned int cmd, |
496 | unsigned long arg) | |
1da177e4 LT |
497 | { |
498 | struct hci_dev *hdev = hci_pi(sk)->hdev; | |
499 | ||
500 | if (!hdev) | |
501 | return -EBADFD; | |
502 | ||
503 | switch (cmd) { | |
504 | case HCISETRAW: | |
505 | if (!capable(CAP_NET_ADMIN)) | |
bf5b30b8 | 506 | return -EPERM; |
1da177e4 LT |
507 | |
508 | if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks)) | |
509 | return -EPERM; | |
510 | ||
511 | if (arg) | |
512 | set_bit(HCI_RAW, &hdev->flags); | |
513 | else | |
514 | clear_bit(HCI_RAW, &hdev->flags); | |
515 | ||
516 | return 0; | |
517 | ||
1da177e4 | 518 | case HCIGETCONNINFO: |
40be492f MH |
519 | return hci_get_conn_info(hdev, (void __user *) arg); |
520 | ||
521 | case HCIGETAUTHINFO: | |
522 | return hci_get_auth_info(hdev, (void __user *) arg); | |
1da177e4 | 523 | |
f0358568 JH |
524 | case HCIBLOCKADDR: |
525 | if (!capable(CAP_NET_ADMIN)) | |
bf5b30b8 | 526 | return -EPERM; |
b2a66aad | 527 | return hci_sock_blacklist_add(hdev, (void __user *) arg); |
f0358568 JH |
528 | |
529 | case HCIUNBLOCKADDR: | |
530 | if (!capable(CAP_NET_ADMIN)) | |
bf5b30b8 | 531 | return -EPERM; |
b2a66aad | 532 | return hci_sock_blacklist_del(hdev, (void __user *) arg); |
f0358568 | 533 | |
1da177e4 LT |
534 | default: |
535 | if (hdev->ioctl) | |
536 | return hdev->ioctl(hdev, cmd, arg); | |
537 | return -EINVAL; | |
538 | } | |
539 | } | |
540 | ||
8fc9ced3 GP |
541 | static int hci_sock_ioctl(struct socket *sock, unsigned int cmd, |
542 | unsigned long arg) | |
1da177e4 LT |
543 | { |
544 | struct sock *sk = sock->sk; | |
40be492f | 545 | void __user *argp = (void __user *) arg; |
1da177e4 LT |
546 | int err; |
547 | ||
548 | BT_DBG("cmd %x arg %lx", cmd, arg); | |
549 | ||
550 | switch (cmd) { | |
551 | case HCIGETDEVLIST: | |
552 | return hci_get_dev_list(argp); | |
553 | ||
554 | case HCIGETDEVINFO: | |
555 | return hci_get_dev_info(argp); | |
556 | ||
557 | case HCIGETCONNLIST: | |
558 | return hci_get_conn_list(argp); | |
559 | ||
560 | case HCIDEVUP: | |
561 | if (!capable(CAP_NET_ADMIN)) | |
bf5b30b8 | 562 | return -EPERM; |
1da177e4 LT |
563 | return hci_dev_open(arg); |
564 | ||
565 | case HCIDEVDOWN: | |
566 | if (!capable(CAP_NET_ADMIN)) | |
bf5b30b8 | 567 | return -EPERM; |
1da177e4 LT |
568 | return hci_dev_close(arg); |
569 | ||
570 | case HCIDEVRESET: | |
571 | if (!capable(CAP_NET_ADMIN)) | |
bf5b30b8 | 572 | return -EPERM; |
1da177e4 LT |
573 | return hci_dev_reset(arg); |
574 | ||
575 | case HCIDEVRESTAT: | |
576 | if (!capable(CAP_NET_ADMIN)) | |
bf5b30b8 | 577 | return -EPERM; |
1da177e4 LT |
578 | return hci_dev_reset_stat(arg); |
579 | ||
580 | case HCISETSCAN: | |
581 | case HCISETAUTH: | |
582 | case HCISETENCRYPT: | |
583 | case HCISETPTYPE: | |
584 | case HCISETLINKPOL: | |
585 | case HCISETLINKMODE: | |
586 | case HCISETACLMTU: | |
587 | case HCISETSCOMTU: | |
588 | if (!capable(CAP_NET_ADMIN)) | |
bf5b30b8 | 589 | return -EPERM; |
1da177e4 LT |
590 | return hci_dev_cmd(cmd, argp); |
591 | ||
592 | case HCIINQUIRY: | |
593 | return hci_inquiry(argp); | |
594 | ||
595 | default: | |
596 | lock_sock(sk); | |
597 | err = hci_sock_bound_ioctl(sk, cmd, arg); | |
598 | release_sock(sk); | |
599 | return err; | |
600 | } | |
601 | } | |
602 | ||
8fc9ced3 GP |
603 | static int hci_sock_bind(struct socket *sock, struct sockaddr *addr, |
604 | int addr_len) | |
1da177e4 | 605 | { |
0381101f | 606 | struct sockaddr_hci haddr; |
1da177e4 LT |
607 | struct sock *sk = sock->sk; |
608 | struct hci_dev *hdev = NULL; | |
0381101f | 609 | int len, err = 0; |
1da177e4 LT |
610 | |
611 | BT_DBG("sock %p sk %p", sock, sk); | |
612 | ||
0381101f JH |
613 | if (!addr) |
614 | return -EINVAL; | |
615 | ||
616 | memset(&haddr, 0, sizeof(haddr)); | |
617 | len = min_t(unsigned int, sizeof(haddr), addr_len); | |
618 | memcpy(&haddr, addr, len); | |
619 | ||
620 | if (haddr.hci_family != AF_BLUETOOTH) | |
621 | return -EINVAL; | |
622 | ||
1da177e4 LT |
623 | lock_sock(sk); |
624 | ||
7cc2ade2 | 625 | if (sk->sk_state == BT_BOUND) { |
1da177e4 LT |
626 | err = -EALREADY; |
627 | goto done; | |
628 | } | |
629 | ||
7cc2ade2 MH |
630 | switch (haddr.hci_channel) { |
631 | case HCI_CHANNEL_RAW: | |
632 | if (hci_pi(sk)->hdev) { | |
633 | err = -EALREADY; | |
1da177e4 LT |
634 | goto done; |
635 | } | |
636 | ||
7cc2ade2 MH |
637 | if (haddr.hci_dev != HCI_DEV_NONE) { |
638 | hdev = hci_dev_get(haddr.hci_dev); | |
639 | if (!hdev) { | |
640 | err = -ENODEV; | |
641 | goto done; | |
642 | } | |
643 | ||
644 | atomic_inc(&hdev->promisc); | |
645 | } | |
646 | ||
647 | hci_pi(sk)->hdev = hdev; | |
648 | break; | |
649 | ||
650 | case HCI_CHANNEL_CONTROL: | |
4b95a24c | 651 | if (haddr.hci_dev != HCI_DEV_NONE) { |
7cc2ade2 MH |
652 | err = -EINVAL; |
653 | goto done; | |
654 | } | |
655 | ||
801f13bd MH |
656 | if (!capable(CAP_NET_ADMIN)) { |
657 | err = -EPERM; | |
658 | goto done; | |
659 | } | |
660 | ||
7cc2ade2 MH |
661 | break; |
662 | ||
cd82e61c MH |
663 | case HCI_CHANNEL_MONITOR: |
664 | if (haddr.hci_dev != HCI_DEV_NONE) { | |
665 | err = -EINVAL; | |
666 | goto done; | |
667 | } | |
668 | ||
669 | if (!capable(CAP_NET_RAW)) { | |
670 | err = -EPERM; | |
671 | goto done; | |
672 | } | |
673 | ||
674 | send_monitor_replay(sk); | |
675 | ||
676 | atomic_inc(&monitor_promisc); | |
677 | break; | |
678 | ||
7cc2ade2 MH |
679 | default: |
680 | err = -EINVAL; | |
681 | goto done; | |
1da177e4 LT |
682 | } |
683 | ||
7cc2ade2 | 684 | |
0381101f | 685 | hci_pi(sk)->channel = haddr.hci_channel; |
1da177e4 LT |
686 | sk->sk_state = BT_BOUND; |
687 | ||
688 | done: | |
689 | release_sock(sk); | |
690 | return err; | |
691 | } | |
692 | ||
8fc9ced3 GP |
693 | static int hci_sock_getname(struct socket *sock, struct sockaddr *addr, |
694 | int *addr_len, int peer) | |
1da177e4 LT |
695 | { |
696 | struct sockaddr_hci *haddr = (struct sockaddr_hci *) addr; | |
697 | struct sock *sk = sock->sk; | |
7b005bd3 | 698 | struct hci_dev *hdev = hci_pi(sk)->hdev; |
1da177e4 LT |
699 | |
700 | BT_DBG("sock %p sk %p", sock, sk); | |
701 | ||
7b005bd3 MH |
702 | if (!hdev) |
703 | return -EBADFD; | |
704 | ||
1da177e4 LT |
705 | lock_sock(sk); |
706 | ||
707 | *addr_len = sizeof(*haddr); | |
708 | haddr->hci_family = AF_BLUETOOTH; | |
7b005bd3 | 709 | haddr->hci_dev = hdev->id; |
3f68ba07 | 710 | haddr->hci_channel= 0; |
1da177e4 LT |
711 | |
712 | release_sock(sk); | |
713 | return 0; | |
714 | } | |
715 | ||
6039aa73 GP |
716 | static void hci_sock_cmsg(struct sock *sk, struct msghdr *msg, |
717 | struct sk_buff *skb) | |
1da177e4 LT |
718 | { |
719 | __u32 mask = hci_pi(sk)->cmsg_mask; | |
720 | ||
0d48d939 MH |
721 | if (mask & HCI_CMSG_DIR) { |
722 | int incoming = bt_cb(skb)->incoming; | |
8fc9ced3 GP |
723 | put_cmsg(msg, SOL_HCI, HCI_CMSG_DIR, sizeof(incoming), |
724 | &incoming); | |
0d48d939 | 725 | } |
1da177e4 | 726 | |
a61bbcf2 | 727 | if (mask & HCI_CMSG_TSTAMP) { |
f6e623a6 JFS |
728 | #ifdef CONFIG_COMPAT |
729 | struct compat_timeval ctv; | |
730 | #endif | |
a61bbcf2 | 731 | struct timeval tv; |
767c5eb5 MH |
732 | void *data; |
733 | int len; | |
a61bbcf2 PM |
734 | |
735 | skb_get_timestamp(skb, &tv); | |
767c5eb5 | 736 | |
1da97f83 DM |
737 | data = &tv; |
738 | len = sizeof(tv); | |
739 | #ifdef CONFIG_COMPAT | |
da88cea1 L |
740 | if (!COMPAT_USE_64BIT_TIME && |
741 | (msg->msg_flags & MSG_CMSG_COMPAT)) { | |
767c5eb5 MH |
742 | ctv.tv_sec = tv.tv_sec; |
743 | ctv.tv_usec = tv.tv_usec; | |
744 | data = &ctv; | |
745 | len = sizeof(ctv); | |
767c5eb5 | 746 | } |
1da97f83 | 747 | #endif |
767c5eb5 MH |
748 | |
749 | put_cmsg(msg, SOL_HCI, HCI_CMSG_TSTAMP, len, data); | |
a61bbcf2 | 750 | } |
1da177e4 | 751 | } |
8e87d142 YH |
752 | |
753 | static int hci_sock_recvmsg(struct kiocb *iocb, struct socket *sock, | |
3bb3c755 | 754 | struct msghdr *msg, size_t len, int flags) |
1da177e4 LT |
755 | { |
756 | int noblock = flags & MSG_DONTWAIT; | |
757 | struct sock *sk = sock->sk; | |
758 | struct sk_buff *skb; | |
759 | int copied, err; | |
760 | ||
761 | BT_DBG("sock %p, sk %p", sock, sk); | |
762 | ||
763 | if (flags & (MSG_OOB)) | |
764 | return -EOPNOTSUPP; | |
765 | ||
766 | if (sk->sk_state == BT_CLOSED) | |
767 | return 0; | |
768 | ||
70f23020 AE |
769 | skb = skb_recv_datagram(sk, flags, noblock, &err); |
770 | if (!skb) | |
1da177e4 LT |
771 | return err; |
772 | ||
773 | msg->msg_namelen = 0; | |
774 | ||
775 | copied = skb->len; | |
776 | if (len < copied) { | |
777 | msg->msg_flags |= MSG_TRUNC; | |
778 | copied = len; | |
779 | } | |
780 | ||
badff6d0 | 781 | skb_reset_transport_header(skb); |
1da177e4 LT |
782 | err = skb_copy_datagram_iovec(skb, 0, msg->msg_iov, copied); |
783 | ||
3a208627 MH |
784 | switch (hci_pi(sk)->channel) { |
785 | case HCI_CHANNEL_RAW: | |
786 | hci_sock_cmsg(sk, msg, skb); | |
787 | break; | |
97e0bdeb | 788 | case HCI_CHANNEL_CONTROL: |
cd82e61c MH |
789 | case HCI_CHANNEL_MONITOR: |
790 | sock_recv_timestamp(msg, sk, skb); | |
791 | break; | |
3a208627 | 792 | } |
1da177e4 LT |
793 | |
794 | skb_free_datagram(sk, skb); | |
795 | ||
796 | return err ? : copied; | |
797 | } | |
798 | ||
8e87d142 | 799 | static int hci_sock_sendmsg(struct kiocb *iocb, struct socket *sock, |
1da177e4 LT |
800 | struct msghdr *msg, size_t len) |
801 | { | |
802 | struct sock *sk = sock->sk; | |
803 | struct hci_dev *hdev; | |
804 | struct sk_buff *skb; | |
805 | int err; | |
806 | ||
807 | BT_DBG("sock %p sk %p", sock, sk); | |
808 | ||
809 | if (msg->msg_flags & MSG_OOB) | |
810 | return -EOPNOTSUPP; | |
811 | ||
812 | if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_NOSIGNAL|MSG_ERRQUEUE)) | |
813 | return -EINVAL; | |
814 | ||
815 | if (len < 4 || len > HCI_MAX_FRAME_SIZE) | |
816 | return -EINVAL; | |
817 | ||
818 | lock_sock(sk); | |
819 | ||
0381101f JH |
820 | switch (hci_pi(sk)->channel) { |
821 | case HCI_CHANNEL_RAW: | |
822 | break; | |
823 | case HCI_CHANNEL_CONTROL: | |
824 | err = mgmt_control(sk, msg, len); | |
825 | goto done; | |
cd82e61c MH |
826 | case HCI_CHANNEL_MONITOR: |
827 | err = -EOPNOTSUPP; | |
828 | goto done; | |
0381101f JH |
829 | default: |
830 | err = -EINVAL; | |
831 | goto done; | |
832 | } | |
833 | ||
70f23020 AE |
834 | hdev = hci_pi(sk)->hdev; |
835 | if (!hdev) { | |
1da177e4 LT |
836 | err = -EBADFD; |
837 | goto done; | |
838 | } | |
839 | ||
7e21addc MH |
840 | if (!test_bit(HCI_UP, &hdev->flags)) { |
841 | err = -ENETDOWN; | |
842 | goto done; | |
843 | } | |
844 | ||
70f23020 AE |
845 | skb = bt_skb_send_alloc(sk, len, msg->msg_flags & MSG_DONTWAIT, &err); |
846 | if (!skb) | |
1da177e4 LT |
847 | goto done; |
848 | ||
849 | if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { | |
850 | err = -EFAULT; | |
851 | goto drop; | |
852 | } | |
853 | ||
0d48d939 | 854 | bt_cb(skb)->pkt_type = *((unsigned char *) skb->data); |
1da177e4 LT |
855 | skb_pull(skb, 1); |
856 | skb->dev = (void *) hdev; | |
857 | ||
0d48d939 | 858 | if (bt_cb(skb)->pkt_type == HCI_COMMAND_PKT) { |
83985319 | 859 | u16 opcode = get_unaligned_le16(skb->data); |
1da177e4 LT |
860 | u16 ogf = hci_opcode_ogf(opcode); |
861 | u16 ocf = hci_opcode_ocf(opcode); | |
862 | ||
863 | if (((ogf > HCI_SFLT_MAX_OGF) || | |
3bb3c755 GP |
864 | !hci_test_bit(ocf & HCI_FLT_OCF_BITS, |
865 | &hci_sec_filter.ocf_mask[ogf])) && | |
866 | !capable(CAP_NET_RAW)) { | |
1da177e4 LT |
867 | err = -EPERM; |
868 | goto drop; | |
869 | } | |
870 | ||
a9de9248 | 871 | if (test_bit(HCI_RAW, &hdev->flags) || (ogf == 0x3f)) { |
1da177e4 | 872 | skb_queue_tail(&hdev->raw_q, skb); |
3eff45ea | 873 | queue_work(hdev->workqueue, &hdev->tx_work); |
1da177e4 | 874 | } else { |
11714b3d JH |
875 | /* Stand-alone HCI commands must be flaged as |
876 | * single-command requests. | |
877 | */ | |
878 | bt_cb(skb)->req.start = true; | |
879 | ||
1da177e4 | 880 | skb_queue_tail(&hdev->cmd_q, skb); |
c347b765 | 881 | queue_work(hdev->workqueue, &hdev->cmd_work); |
1da177e4 LT |
882 | } |
883 | } else { | |
884 | if (!capable(CAP_NET_RAW)) { | |
885 | err = -EPERM; | |
886 | goto drop; | |
887 | } | |
888 | ||
889 | skb_queue_tail(&hdev->raw_q, skb); | |
3eff45ea | 890 | queue_work(hdev->workqueue, &hdev->tx_work); |
1da177e4 LT |
891 | } |
892 | ||
893 | err = len; | |
894 | ||
895 | done: | |
896 | release_sock(sk); | |
897 | return err; | |
898 | ||
899 | drop: | |
900 | kfree_skb(skb); | |
901 | goto done; | |
902 | } | |
903 | ||
8fc9ced3 GP |
904 | static int hci_sock_setsockopt(struct socket *sock, int level, int optname, |
905 | char __user *optval, unsigned int len) | |
1da177e4 LT |
906 | { |
907 | struct hci_ufilter uf = { .opcode = 0 }; | |
908 | struct sock *sk = sock->sk; | |
909 | int err = 0, opt = 0; | |
910 | ||
911 | BT_DBG("sk %p, opt %d", sk, optname); | |
912 | ||
913 | lock_sock(sk); | |
914 | ||
2f39cdb7 MH |
915 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { |
916 | err = -EINVAL; | |
917 | goto done; | |
918 | } | |
919 | ||
1da177e4 LT |
920 | switch (optname) { |
921 | case HCI_DATA_DIR: | |
922 | if (get_user(opt, (int __user *)optval)) { | |
923 | err = -EFAULT; | |
924 | break; | |
925 | } | |
926 | ||
927 | if (opt) | |
928 | hci_pi(sk)->cmsg_mask |= HCI_CMSG_DIR; | |
929 | else | |
930 | hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_DIR; | |
931 | break; | |
932 | ||
933 | case HCI_TIME_STAMP: | |
934 | if (get_user(opt, (int __user *)optval)) { | |
935 | err = -EFAULT; | |
936 | break; | |
937 | } | |
938 | ||
939 | if (opt) | |
940 | hci_pi(sk)->cmsg_mask |= HCI_CMSG_TSTAMP; | |
941 | else | |
942 | hci_pi(sk)->cmsg_mask &= ~HCI_CMSG_TSTAMP; | |
943 | break; | |
944 | ||
945 | case HCI_FILTER: | |
0878b666 MH |
946 | { |
947 | struct hci_filter *f = &hci_pi(sk)->filter; | |
948 | ||
949 | uf.type_mask = f->type_mask; | |
950 | uf.opcode = f->opcode; | |
951 | uf.event_mask[0] = *((u32 *) f->event_mask + 0); | |
952 | uf.event_mask[1] = *((u32 *) f->event_mask + 1); | |
953 | } | |
954 | ||
1da177e4 LT |
955 | len = min_t(unsigned int, len, sizeof(uf)); |
956 | if (copy_from_user(&uf, optval, len)) { | |
957 | err = -EFAULT; | |
958 | break; | |
959 | } | |
960 | ||
961 | if (!capable(CAP_NET_RAW)) { | |
962 | uf.type_mask &= hci_sec_filter.type_mask; | |
963 | uf.event_mask[0] &= *((u32 *) hci_sec_filter.event_mask + 0); | |
964 | uf.event_mask[1] &= *((u32 *) hci_sec_filter.event_mask + 1); | |
965 | } | |
966 | ||
967 | { | |
968 | struct hci_filter *f = &hci_pi(sk)->filter; | |
969 | ||
970 | f->type_mask = uf.type_mask; | |
971 | f->opcode = uf.opcode; | |
972 | *((u32 *) f->event_mask + 0) = uf.event_mask[0]; | |
973 | *((u32 *) f->event_mask + 1) = uf.event_mask[1]; | |
974 | } | |
8e87d142 | 975 | break; |
1da177e4 LT |
976 | |
977 | default: | |
978 | err = -ENOPROTOOPT; | |
979 | break; | |
980 | } | |
981 | ||
2f39cdb7 | 982 | done: |
1da177e4 LT |
983 | release_sock(sk); |
984 | return err; | |
985 | } | |
986 | ||
8fc9ced3 GP |
987 | static int hci_sock_getsockopt(struct socket *sock, int level, int optname, |
988 | char __user *optval, int __user *optlen) | |
1da177e4 LT |
989 | { |
990 | struct hci_ufilter uf; | |
991 | struct sock *sk = sock->sk; | |
cedc5469 MH |
992 | int len, opt, err = 0; |
993 | ||
994 | BT_DBG("sk %p, opt %d", sk, optname); | |
1da177e4 LT |
995 | |
996 | if (get_user(len, optlen)) | |
997 | return -EFAULT; | |
998 | ||
cedc5469 MH |
999 | lock_sock(sk); |
1000 | ||
1001 | if (hci_pi(sk)->channel != HCI_CHANNEL_RAW) { | |
1002 | err = -EINVAL; | |
1003 | goto done; | |
1004 | } | |
1005 | ||
1da177e4 LT |
1006 | switch (optname) { |
1007 | case HCI_DATA_DIR: | |
1008 | if (hci_pi(sk)->cmsg_mask & HCI_CMSG_DIR) | |
1009 | opt = 1; | |
8e87d142 | 1010 | else |
1da177e4 LT |
1011 | opt = 0; |
1012 | ||
1013 | if (put_user(opt, optval)) | |
cedc5469 | 1014 | err = -EFAULT; |
1da177e4 LT |
1015 | break; |
1016 | ||
1017 | case HCI_TIME_STAMP: | |
1018 | if (hci_pi(sk)->cmsg_mask & HCI_CMSG_TSTAMP) | |
1019 | opt = 1; | |
8e87d142 | 1020 | else |
1da177e4 LT |
1021 | opt = 0; |
1022 | ||
1023 | if (put_user(opt, optval)) | |
cedc5469 | 1024 | err = -EFAULT; |
1da177e4 LT |
1025 | break; |
1026 | ||
1027 | case HCI_FILTER: | |
1028 | { | |
1029 | struct hci_filter *f = &hci_pi(sk)->filter; | |
1030 | ||
e15ca9a0 | 1031 | memset(&uf, 0, sizeof(uf)); |
1da177e4 LT |
1032 | uf.type_mask = f->type_mask; |
1033 | uf.opcode = f->opcode; | |
1034 | uf.event_mask[0] = *((u32 *) f->event_mask + 0); | |
1035 | uf.event_mask[1] = *((u32 *) f->event_mask + 1); | |
1036 | } | |
1037 | ||
1038 | len = min_t(unsigned int, len, sizeof(uf)); | |
1039 | if (copy_to_user(optval, &uf, len)) | |
cedc5469 | 1040 | err = -EFAULT; |
1da177e4 LT |
1041 | break; |
1042 | ||
1043 | default: | |
cedc5469 | 1044 | err = -ENOPROTOOPT; |
1da177e4 LT |
1045 | break; |
1046 | } | |
1047 | ||
cedc5469 MH |
1048 | done: |
1049 | release_sock(sk); | |
1050 | return err; | |
1da177e4 LT |
1051 | } |
1052 | ||
90ddc4f0 | 1053 | static const struct proto_ops hci_sock_ops = { |
1da177e4 LT |
1054 | .family = PF_BLUETOOTH, |
1055 | .owner = THIS_MODULE, | |
1056 | .release = hci_sock_release, | |
1057 | .bind = hci_sock_bind, | |
1058 | .getname = hci_sock_getname, | |
1059 | .sendmsg = hci_sock_sendmsg, | |
1060 | .recvmsg = hci_sock_recvmsg, | |
1061 | .ioctl = hci_sock_ioctl, | |
1062 | .poll = datagram_poll, | |
1063 | .listen = sock_no_listen, | |
1064 | .shutdown = sock_no_shutdown, | |
1065 | .setsockopt = hci_sock_setsockopt, | |
1066 | .getsockopt = hci_sock_getsockopt, | |
1067 | .connect = sock_no_connect, | |
1068 | .socketpair = sock_no_socketpair, | |
1069 | .accept = sock_no_accept, | |
1070 | .mmap = sock_no_mmap | |
1071 | }; | |
1072 | ||
1073 | static struct proto hci_sk_proto = { | |
1074 | .name = "HCI", | |
1075 | .owner = THIS_MODULE, | |
1076 | .obj_size = sizeof(struct hci_pinfo) | |
1077 | }; | |
1078 | ||
3f378b68 EP |
1079 | static int hci_sock_create(struct net *net, struct socket *sock, int protocol, |
1080 | int kern) | |
1da177e4 LT |
1081 | { |
1082 | struct sock *sk; | |
1083 | ||
1084 | BT_DBG("sock %p", sock); | |
1085 | ||
1086 | if (sock->type != SOCK_RAW) | |
1087 | return -ESOCKTNOSUPPORT; | |
1088 | ||
1089 | sock->ops = &hci_sock_ops; | |
1090 | ||
6257ff21 | 1091 | sk = sk_alloc(net, PF_BLUETOOTH, GFP_ATOMIC, &hci_sk_proto); |
1da177e4 LT |
1092 | if (!sk) |
1093 | return -ENOMEM; | |
1094 | ||
1095 | sock_init_data(sock, sk); | |
1096 | ||
1097 | sock_reset_flag(sk, SOCK_ZAPPED); | |
1098 | ||
1099 | sk->sk_protocol = protocol; | |
1100 | ||
1101 | sock->state = SS_UNCONNECTED; | |
1102 | sk->sk_state = BT_OPEN; | |
1103 | ||
1104 | bt_sock_link(&hci_sk_list, sk); | |
1105 | return 0; | |
1106 | } | |
1107 | ||
ec1b4cf7 | 1108 | static const struct net_proto_family hci_sock_family_ops = { |
1da177e4 LT |
1109 | .family = PF_BLUETOOTH, |
1110 | .owner = THIS_MODULE, | |
1111 | .create = hci_sock_create, | |
1112 | }; | |
1113 | ||
1da177e4 LT |
1114 | int __init hci_sock_init(void) |
1115 | { | |
1116 | int err; | |
1117 | ||
1118 | err = proto_register(&hci_sk_proto, 0); | |
1119 | if (err < 0) | |
1120 | return err; | |
1121 | ||
1122 | err = bt_sock_register(BTPROTO_HCI, &hci_sock_family_ops); | |
f7c86637 MY |
1123 | if (err < 0) { |
1124 | BT_ERR("HCI socket registration failed"); | |
1da177e4 | 1125 | goto error; |
f7c86637 MY |
1126 | } |
1127 | ||
b0316615 | 1128 | err = bt_procfs_init(&init_net, "hci", &hci_sk_list, NULL); |
f7c86637 MY |
1129 | if (err < 0) { |
1130 | BT_ERR("Failed to create HCI proc file"); | |
1131 | bt_sock_unregister(BTPROTO_HCI); | |
1132 | goto error; | |
1133 | } | |
1da177e4 | 1134 | |
1da177e4 LT |
1135 | BT_INFO("HCI socket layer initialized"); |
1136 | ||
1137 | return 0; | |
1138 | ||
1139 | error: | |
1da177e4 LT |
1140 | proto_unregister(&hci_sk_proto); |
1141 | return err; | |
1142 | } | |
1143 | ||
b7440a14 | 1144 | void hci_sock_cleanup(void) |
1da177e4 | 1145 | { |
f7c86637 | 1146 | bt_procfs_cleanup(&init_net, "hci"); |
5e9d7f86 | 1147 | bt_sock_unregister(BTPROTO_HCI); |
1da177e4 | 1148 | proto_unregister(&hci_sk_proto); |
1da177e4 | 1149 | } |