projects / deliverable / linux.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
x86/fpu: Rename XFEATURES_NR_MAX
[deliverable/linux.git] / net / bluetooth / mgmt.c
1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3
4 Copyright (C) 2010 Nokia Corporation
5 Copyright (C) 2011-2012 Intel Corporation
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
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
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23 */
24
25 /* Bluetooth HCI Management interface */
26
27 #include <linux/module.h>
28 #include <asm/unaligned.h>
29
30 #include <net/bluetooth/bluetooth.h>
31 #include <net/bluetooth/hci_core.h>
32 #include <net/bluetooth/hci_sock.h>
33 #include <net/bluetooth/l2cap.h>
34 #include <net/bluetooth/mgmt.h>
35
36 #include "hci_request.h"
37 #include "smp.h"
38 #include "mgmt_util.h"
39
40 #define MGMT_VERSION 1
41 #define MGMT_REVISION 10
42
43 static const u16 mgmt_commands[] = {
44 MGMT_OP_READ_INDEX_LIST,
45 MGMT_OP_READ_INFO,
46 MGMT_OP_SET_POWERED,
47 MGMT_OP_SET_DISCOVERABLE,
48 MGMT_OP_SET_CONNECTABLE,
49 MGMT_OP_SET_FAST_CONNECTABLE,
50 MGMT_OP_SET_BONDABLE,
51 MGMT_OP_SET_LINK_SECURITY,
52 MGMT_OP_SET_SSP,
53 MGMT_OP_SET_HS,
54 MGMT_OP_SET_LE,
55 MGMT_OP_SET_DEV_CLASS,
56 MGMT_OP_SET_LOCAL_NAME,
57 MGMT_OP_ADD_UUID,
58 MGMT_OP_REMOVE_UUID,
59 MGMT_OP_LOAD_LINK_KEYS,
60 MGMT_OP_LOAD_LONG_TERM_KEYS,
61 MGMT_OP_DISCONNECT,
62 MGMT_OP_GET_CONNECTIONS,
63 MGMT_OP_PIN_CODE_REPLY,
64 MGMT_OP_PIN_CODE_NEG_REPLY,
65 MGMT_OP_SET_IO_CAPABILITY,
66 MGMT_OP_PAIR_DEVICE,
67 MGMT_OP_CANCEL_PAIR_DEVICE,
68 MGMT_OP_UNPAIR_DEVICE,
69 MGMT_OP_USER_CONFIRM_REPLY,
70 MGMT_OP_USER_CONFIRM_NEG_REPLY,
71 MGMT_OP_USER_PASSKEY_REPLY,
72 MGMT_OP_USER_PASSKEY_NEG_REPLY,
73 MGMT_OP_READ_LOCAL_OOB_DATA,
74 MGMT_OP_ADD_REMOTE_OOB_DATA,
75 MGMT_OP_REMOVE_REMOTE_OOB_DATA,
76 MGMT_OP_START_DISCOVERY,
77 MGMT_OP_STOP_DISCOVERY,
78 MGMT_OP_CONFIRM_NAME,
79 MGMT_OP_BLOCK_DEVICE,
80 MGMT_OP_UNBLOCK_DEVICE,
81 MGMT_OP_SET_DEVICE_ID,
82 MGMT_OP_SET_ADVERTISING,
83 MGMT_OP_SET_BREDR,
84 MGMT_OP_SET_STATIC_ADDRESS,
85 MGMT_OP_SET_SCAN_PARAMS,
86 MGMT_OP_SET_SECURE_CONN,
87 MGMT_OP_SET_DEBUG_KEYS,
88 MGMT_OP_SET_PRIVACY,
89 MGMT_OP_LOAD_IRKS,
90 MGMT_OP_GET_CONN_INFO,
91 MGMT_OP_GET_CLOCK_INFO,
92 MGMT_OP_ADD_DEVICE,
93 MGMT_OP_REMOVE_DEVICE,
94 MGMT_OP_LOAD_CONN_PARAM,
95 MGMT_OP_READ_UNCONF_INDEX_LIST,
96 MGMT_OP_READ_CONFIG_INFO,
97 MGMT_OP_SET_EXTERNAL_CONFIG,
98 MGMT_OP_SET_PUBLIC_ADDRESS,
99 MGMT_OP_START_SERVICE_DISCOVERY,
100 MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
101 MGMT_OP_READ_EXT_INDEX_LIST,
102 MGMT_OP_READ_ADV_FEATURES,
103 MGMT_OP_ADD_ADVERTISING,
104 MGMT_OP_REMOVE_ADVERTISING,
105 };
106
107 static const u16 mgmt_events[] = {
108 MGMT_EV_CONTROLLER_ERROR,
109 MGMT_EV_INDEX_ADDED,
110 MGMT_EV_INDEX_REMOVED,
111 MGMT_EV_NEW_SETTINGS,
112 MGMT_EV_CLASS_OF_DEV_CHANGED,
113 MGMT_EV_LOCAL_NAME_CHANGED,
114 MGMT_EV_NEW_LINK_KEY,
115 MGMT_EV_NEW_LONG_TERM_KEY,
116 MGMT_EV_DEVICE_CONNECTED,
117 MGMT_EV_DEVICE_DISCONNECTED,
118 MGMT_EV_CONNECT_FAILED,
119 MGMT_EV_PIN_CODE_REQUEST,
120 MGMT_EV_USER_CONFIRM_REQUEST,
121 MGMT_EV_USER_PASSKEY_REQUEST,
122 MGMT_EV_AUTH_FAILED,
123 MGMT_EV_DEVICE_FOUND,
124 MGMT_EV_DISCOVERING,
125 MGMT_EV_DEVICE_BLOCKED,
126 MGMT_EV_DEVICE_UNBLOCKED,
127 MGMT_EV_DEVICE_UNPAIRED,
128 MGMT_EV_PASSKEY_NOTIFY,
129 MGMT_EV_NEW_IRK,
130 MGMT_EV_NEW_CSRK,
131 MGMT_EV_DEVICE_ADDED,
132 MGMT_EV_DEVICE_REMOVED,
133 MGMT_EV_NEW_CONN_PARAM,
134 MGMT_EV_UNCONF_INDEX_ADDED,
135 MGMT_EV_UNCONF_INDEX_REMOVED,
136 MGMT_EV_NEW_CONFIG_OPTIONS,
137 MGMT_EV_EXT_INDEX_ADDED,
138 MGMT_EV_EXT_INDEX_REMOVED,
139 MGMT_EV_LOCAL_OOB_DATA_UPDATED,
140 MGMT_EV_ADVERTISING_ADDED,
141 MGMT_EV_ADVERTISING_REMOVED,
142 };
143
144 static const u16 mgmt_untrusted_commands[] = {
145 MGMT_OP_READ_INDEX_LIST,
146 MGMT_OP_READ_INFO,
147 MGMT_OP_READ_UNCONF_INDEX_LIST,
148 MGMT_OP_READ_CONFIG_INFO,
149 MGMT_OP_READ_EXT_INDEX_LIST,
150 };
151
152 static const u16 mgmt_untrusted_events[] = {
153 MGMT_EV_INDEX_ADDED,
154 MGMT_EV_INDEX_REMOVED,
155 MGMT_EV_NEW_SETTINGS,
156 MGMT_EV_CLASS_OF_DEV_CHANGED,
157 MGMT_EV_LOCAL_NAME_CHANGED,
158 MGMT_EV_UNCONF_INDEX_ADDED,
159 MGMT_EV_UNCONF_INDEX_REMOVED,
160 MGMT_EV_NEW_CONFIG_OPTIONS,
161 MGMT_EV_EXT_INDEX_ADDED,
162 MGMT_EV_EXT_INDEX_REMOVED,
163 };
164
165 #define CACHE_TIMEOUT msecs_to_jiffies(2 * 1000)
166
167 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
168 "\x00\x00\x00\x00\x00\x00\x00\x00"
169
170 /* HCI to MGMT error code conversion table */
171 static u8 mgmt_status_table[] = {
172 MGMT_STATUS_SUCCESS,
173 MGMT_STATUS_UNKNOWN_COMMAND, /* Unknown Command */
174 MGMT_STATUS_NOT_CONNECTED, /* No Connection */
175 MGMT_STATUS_FAILED, /* Hardware Failure */
176 MGMT_STATUS_CONNECT_FAILED, /* Page Timeout */
177 MGMT_STATUS_AUTH_FAILED, /* Authentication Failed */
178 MGMT_STATUS_AUTH_FAILED, /* PIN or Key Missing */
179 MGMT_STATUS_NO_RESOURCES, /* Memory Full */
180 MGMT_STATUS_TIMEOUT, /* Connection Timeout */
181 MGMT_STATUS_NO_RESOURCES, /* Max Number of Connections */
182 MGMT_STATUS_NO_RESOURCES, /* Max Number of SCO Connections */
183 MGMT_STATUS_ALREADY_CONNECTED, /* ACL Connection Exists */
184 MGMT_STATUS_BUSY, /* Command Disallowed */
185 MGMT_STATUS_NO_RESOURCES, /* Rejected Limited Resources */
186 MGMT_STATUS_REJECTED, /* Rejected Security */
187 MGMT_STATUS_REJECTED, /* Rejected Personal */
188 MGMT_STATUS_TIMEOUT, /* Host Timeout */
189 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Feature */
190 MGMT_STATUS_INVALID_PARAMS, /* Invalid Parameters */
191 MGMT_STATUS_DISCONNECTED, /* OE User Ended Connection */
192 MGMT_STATUS_NO_RESOURCES, /* OE Low Resources */
193 MGMT_STATUS_DISCONNECTED, /* OE Power Off */
194 MGMT_STATUS_DISCONNECTED, /* Connection Terminated */
195 MGMT_STATUS_BUSY, /* Repeated Attempts */
196 MGMT_STATUS_REJECTED, /* Pairing Not Allowed */
197 MGMT_STATUS_FAILED, /* Unknown LMP PDU */
198 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Remote Feature */
199 MGMT_STATUS_REJECTED, /* SCO Offset Rejected */
200 MGMT_STATUS_REJECTED, /* SCO Interval Rejected */
201 MGMT_STATUS_REJECTED, /* Air Mode Rejected */
202 MGMT_STATUS_INVALID_PARAMS, /* Invalid LMP Parameters */
203 MGMT_STATUS_FAILED, /* Unspecified Error */
204 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported LMP Parameter Value */
205 MGMT_STATUS_FAILED, /* Role Change Not Allowed */
206 MGMT_STATUS_TIMEOUT, /* LMP Response Timeout */
207 MGMT_STATUS_FAILED, /* LMP Error Transaction Collision */
208 MGMT_STATUS_FAILED, /* LMP PDU Not Allowed */
209 MGMT_STATUS_REJECTED, /* Encryption Mode Not Accepted */
210 MGMT_STATUS_FAILED, /* Unit Link Key Used */
211 MGMT_STATUS_NOT_SUPPORTED, /* QoS Not Supported */
212 MGMT_STATUS_TIMEOUT, /* Instant Passed */
213 MGMT_STATUS_NOT_SUPPORTED, /* Pairing Not Supported */
214 MGMT_STATUS_FAILED, /* Transaction Collision */
215 MGMT_STATUS_INVALID_PARAMS, /* Unacceptable Parameter */
216 MGMT_STATUS_REJECTED, /* QoS Rejected */
217 MGMT_STATUS_NOT_SUPPORTED, /* Classification Not Supported */
218 MGMT_STATUS_REJECTED, /* Insufficient Security */
219 MGMT_STATUS_INVALID_PARAMS, /* Parameter Out Of Range */
220 MGMT_STATUS_BUSY, /* Role Switch Pending */
221 MGMT_STATUS_FAILED, /* Slot Violation */
222 MGMT_STATUS_FAILED, /* Role Switch Failed */
223 MGMT_STATUS_INVALID_PARAMS, /* EIR Too Large */
224 MGMT_STATUS_NOT_SUPPORTED, /* Simple Pairing Not Supported */
225 MGMT_STATUS_BUSY, /* Host Busy Pairing */
226 MGMT_STATUS_REJECTED, /* Rejected, No Suitable Channel */
227 MGMT_STATUS_BUSY, /* Controller Busy */
228 MGMT_STATUS_INVALID_PARAMS, /* Unsuitable Connection Interval */
229 MGMT_STATUS_TIMEOUT, /* Directed Advertising Timeout */
230 MGMT_STATUS_AUTH_FAILED, /* Terminated Due to MIC Failure */
231 MGMT_STATUS_CONNECT_FAILED, /* Connection Establishment Failed */
232 MGMT_STATUS_CONNECT_FAILED, /* MAC Connection Failed */
233 };
234
235 static u8 mgmt_status(u8 hci_status)
236 {
237 if (hci_status < ARRAY_SIZE(mgmt_status_table))
238 return mgmt_status_table[hci_status];
239
240 return MGMT_STATUS_FAILED;
241 }
242
243 static int mgmt_index_event(u16 event, struct hci_dev *hdev, void *data,
244 u16 len, int flag)
245 {
246 return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
247 flag, NULL);
248 }
249
250 static int mgmt_limited_event(u16 event, struct hci_dev *hdev, void *data,
251 u16 len, int flag, struct sock *skip_sk)
252 {
253 return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
254 flag, skip_sk);
255 }
256
257 static int mgmt_generic_event(u16 event, struct hci_dev *hdev, void *data,
258 u16 len, struct sock *skip_sk)
259 {
260 return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
261 HCI_MGMT_GENERIC_EVENTS, skip_sk);
262 }
263
264 static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 len,
265 struct sock *skip_sk)
266 {
267 return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
268 HCI_SOCK_TRUSTED, skip_sk);
269 }
270
271 static int read_version(struct sock *sk, struct hci_dev *hdev, void *data,
272 u16 data_len)
273 {
274 struct mgmt_rp_read_version rp;
275
276 BT_DBG("sock %p", sk);
277
278 rp.version = MGMT_VERSION;
279 rp.revision = cpu_to_le16(MGMT_REVISION);
280
281 return mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0,
282 &rp, sizeof(rp));
283 }
284
285 static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
286 u16 data_len)
287 {
288 struct mgmt_rp_read_commands *rp;
289 u16 num_commands, num_events;
290 size_t rp_size;
291 int i, err;
292
293 BT_DBG("sock %p", sk);
294
295 if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
296 num_commands = ARRAY_SIZE(mgmt_commands);
297 num_events = ARRAY_SIZE(mgmt_events);
298 } else {
299 num_commands = ARRAY_SIZE(mgmt_untrusted_commands);
300 num_events = ARRAY_SIZE(mgmt_untrusted_events);
301 }
302
303 rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
304
305 rp = kmalloc(rp_size, GFP_KERNEL);
306 if (!rp)
307 return -ENOMEM;
308
309 rp->num_commands = cpu_to_le16(num_commands);
310 rp->num_events = cpu_to_le16(num_events);
311
312 if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
313 __le16 *opcode = rp->opcodes;
314
315 for (i = 0; i < num_commands; i++, opcode++)
316 put_unaligned_le16(mgmt_commands[i], opcode);
317
318 for (i = 0; i < num_events; i++, opcode++)
319 put_unaligned_le16(mgmt_events[i], opcode);
320 } else {
321 __le16 *opcode = rp->opcodes;
322
323 for (i = 0; i < num_commands; i++, opcode++)
324 put_unaligned_le16(mgmt_untrusted_commands[i], opcode);
325
326 for (i = 0; i < num_events; i++, opcode++)
327 put_unaligned_le16(mgmt_untrusted_events[i], opcode);
328 }
329
330 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0,
331 rp, rp_size);
332 kfree(rp);
333
334 return err;
335 }
336
337 static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
338 u16 data_len)
339 {
340 struct mgmt_rp_read_index_list *rp;
341 struct hci_dev *d;
342 size_t rp_len;
343 u16 count;
344 int err;
345
346 BT_DBG("sock %p", sk);
347
348 read_lock(&hci_dev_list_lock);
349
350 count = 0;
351 list_for_each_entry(d, &hci_dev_list, list) {
352 if (d->dev_type == HCI_BREDR &&
353 !hci_dev_test_flag(d, HCI_UNCONFIGURED))
354 count++;
355 }
356
357 rp_len = sizeof(*rp) + (2 * count);
358 rp = kmalloc(rp_len, GFP_ATOMIC);
359 if (!rp) {
360 read_unlock(&hci_dev_list_lock);
361 return -ENOMEM;
362 }
363
364 count = 0;
365 list_for_each_entry(d, &hci_dev_list, list) {
366 if (hci_dev_test_flag(d, HCI_SETUP) ||
367 hci_dev_test_flag(d, HCI_CONFIG) ||
368 hci_dev_test_flag(d, HCI_USER_CHANNEL))
369 continue;
370
371 /* Devices marked as raw-only are neither configured
372 * nor unconfigured controllers.
373 */
374 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
375 continue;
376
377 if (d->dev_type == HCI_BREDR &&
378 !hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
379 rp->index[count++] = cpu_to_le16(d->id);
380 BT_DBG("Added hci%u", d->id);
381 }
382 }
383
384 rp->num_controllers = cpu_to_le16(count);
385 rp_len = sizeof(*rp) + (2 * count);
386
387 read_unlock(&hci_dev_list_lock);
388
389 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST,
390 0, rp, rp_len);
391
392 kfree(rp);
393
394 return err;
395 }
396
397 static int read_unconf_index_list(struct sock *sk, struct hci_dev *hdev,
398 void *data, u16 data_len)
399 {
400 struct mgmt_rp_read_unconf_index_list *rp;
401 struct hci_dev *d;
402 size_t rp_len;
403 u16 count;
404 int err;
405
406 BT_DBG("sock %p", sk);
407
408 read_lock(&hci_dev_list_lock);
409
410 count = 0;
411 list_for_each_entry(d, &hci_dev_list, list) {
412 if (d->dev_type == HCI_BREDR &&
413 hci_dev_test_flag(d, HCI_UNCONFIGURED))
414 count++;
415 }
416
417 rp_len = sizeof(*rp) + (2 * count);
418 rp = kmalloc(rp_len, GFP_ATOMIC);
419 if (!rp) {
420 read_unlock(&hci_dev_list_lock);
421 return -ENOMEM;
422 }
423
424 count = 0;
425 list_for_each_entry(d, &hci_dev_list, list) {
426 if (hci_dev_test_flag(d, HCI_SETUP) ||
427 hci_dev_test_flag(d, HCI_CONFIG) ||
428 hci_dev_test_flag(d, HCI_USER_CHANNEL))
429 continue;
430
431 /* Devices marked as raw-only are neither configured
432 * nor unconfigured controllers.
433 */
434 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
435 continue;
436
437 if (d->dev_type == HCI_BREDR &&
438 hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
439 rp->index[count++] = cpu_to_le16(d->id);
440 BT_DBG("Added hci%u", d->id);
441 }
442 }
443
444 rp->num_controllers = cpu_to_le16(count);
445 rp_len = sizeof(*rp) + (2 * count);
446
447 read_unlock(&hci_dev_list_lock);
448
449 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
450 MGMT_OP_READ_UNCONF_INDEX_LIST, 0, rp, rp_len);
451
452 kfree(rp);
453
454 return err;
455 }
456
457 static int read_ext_index_list(struct sock *sk, struct hci_dev *hdev,
458 void *data, u16 data_len)
459 {
460 struct mgmt_rp_read_ext_index_list *rp;
461 struct hci_dev *d;
462 size_t rp_len;
463 u16 count;
464 int err;
465
466 BT_DBG("sock %p", sk);
467
468 read_lock(&hci_dev_list_lock);
469
470 count = 0;
471 list_for_each_entry(d, &hci_dev_list, list) {
472 if (d->dev_type == HCI_BREDR || d->dev_type == HCI_AMP)
473 count++;
474 }
475
476 rp_len = sizeof(*rp) + (sizeof(rp->entry[0]) * count);
477 rp = kmalloc(rp_len, GFP_ATOMIC);
478 if (!rp) {
479 read_unlock(&hci_dev_list_lock);
480 return -ENOMEM;
481 }
482
483 count = 0;
484 list_for_each_entry(d, &hci_dev_list, list) {
485 if (hci_dev_test_flag(d, HCI_SETUP) ||
486 hci_dev_test_flag(d, HCI_CONFIG) ||
487 hci_dev_test_flag(d, HCI_USER_CHANNEL))
488 continue;
489
490 /* Devices marked as raw-only are neither configured
491 * nor unconfigured controllers.
492 */
493 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
494 continue;
495
496 if (d->dev_type == HCI_BREDR) {
497 if (hci_dev_test_flag(d, HCI_UNCONFIGURED))
498 rp->entry[count].type = 0x01;
499 else
500 rp->entry[count].type = 0x00;
501 } else if (d->dev_type == HCI_AMP) {
502 rp->entry[count].type = 0x02;
503 } else {
504 continue;
505 }
506
507 rp->entry[count].bus = d->bus;
508 rp->entry[count++].index = cpu_to_le16(d->id);
509 BT_DBG("Added hci%u", d->id);
510 }
511
512 rp->num_controllers = cpu_to_le16(count);
513 rp_len = sizeof(*rp) + (sizeof(rp->entry[0]) * count);
514
515 read_unlock(&hci_dev_list_lock);
516
517 /* If this command is called at least once, then all the
518 * default index and unconfigured index events are disabled
519 * and from now on only extended index events are used.
520 */
521 hci_sock_set_flag(sk, HCI_MGMT_EXT_INDEX_EVENTS);
522 hci_sock_clear_flag(sk, HCI_MGMT_INDEX_EVENTS);
523 hci_sock_clear_flag(sk, HCI_MGMT_UNCONF_INDEX_EVENTS);
524
525 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
526 MGMT_OP_READ_EXT_INDEX_LIST, 0, rp, rp_len);
527
528 kfree(rp);
529
530 return err;
531 }
532
533 static bool is_configured(struct hci_dev *hdev)
534 {
535 if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
536 !hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
537 return false;
538
539 if (test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) &&
540 !bacmp(&hdev->public_addr, BDADDR_ANY))
541 return false;
542
543 return true;
544 }
545
546 static __le32 get_missing_options(struct hci_dev *hdev)
547 {
548 u32 options = 0;
549
550 if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
551 !hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
552 options |= MGMT_OPTION_EXTERNAL_CONFIG;
553
554 if (test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) &&
555 !bacmp(&hdev->public_addr, BDADDR_ANY))
556 options |= MGMT_OPTION_PUBLIC_ADDRESS;
557
558 return cpu_to_le32(options);
559 }
560
561 static int new_options(struct hci_dev *hdev, struct sock *skip)
562 {
563 __le32 options = get_missing_options(hdev);
564
565 return mgmt_generic_event(MGMT_EV_NEW_CONFIG_OPTIONS, hdev, &options,
566 sizeof(options), skip);
567 }
568
569 static int send_options_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
570 {
571 __le32 options = get_missing_options(hdev);
572
573 return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &options,
574 sizeof(options));
575 }
576
577 static int read_config_info(struct sock *sk, struct hci_dev *hdev,
578 void *data, u16 data_len)
579 {
580 struct mgmt_rp_read_config_info rp;
581 u32 options = 0;
582
583 BT_DBG("sock %p %s", sk, hdev->name);
584
585 hci_dev_lock(hdev);
586
587 memset(&rp, 0, sizeof(rp));
588 rp.manufacturer = cpu_to_le16(hdev->manufacturer);
589
590 if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
591 options |= MGMT_OPTION_EXTERNAL_CONFIG;
592
593 if (hdev->set_bdaddr)
594 options |= MGMT_OPTION_PUBLIC_ADDRESS;
595
596 rp.supported_options = cpu_to_le32(options);
597 rp.missing_options = get_missing_options(hdev);
598
599 hci_dev_unlock(hdev);
600
601 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_CONFIG_INFO, 0,
602 &rp, sizeof(rp));
603 }
604
605 static u32 get_supported_settings(struct hci_dev *hdev)
606 {
607 u32 settings = 0;
608
609 settings |= MGMT_SETTING_POWERED;
610 settings |= MGMT_SETTING_BONDABLE;
611 settings |= MGMT_SETTING_DEBUG_KEYS;
612 settings |= MGMT_SETTING_CONNECTABLE;
613 settings |= MGMT_SETTING_DISCOVERABLE;
614
615 if (lmp_bredr_capable(hdev)) {
616 if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
617 settings |= MGMT_SETTING_FAST_CONNECTABLE;
618 settings |= MGMT_SETTING_BREDR;
619 settings |= MGMT_SETTING_LINK_SECURITY;
620
621 if (lmp_ssp_capable(hdev)) {
622 settings |= MGMT_SETTING_SSP;
623 settings |= MGMT_SETTING_HS;
624 }
625
626 if (lmp_sc_capable(hdev))
627 settings |= MGMT_SETTING_SECURE_CONN;
628 }
629
630 if (lmp_le_capable(hdev)) {
631 settings |= MGMT_SETTING_LE;
632 settings |= MGMT_SETTING_ADVERTISING;
633 settings |= MGMT_SETTING_SECURE_CONN;
634 settings |= MGMT_SETTING_PRIVACY;
635 settings |= MGMT_SETTING_STATIC_ADDRESS;
636 }
637
638 if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) ||
639 hdev->set_bdaddr)
640 settings |= MGMT_SETTING_CONFIGURATION;
641
642 return settings;
643 }
644
645 static u32 get_current_settings(struct hci_dev *hdev)
646 {
647 u32 settings = 0;
648
649 if (hdev_is_powered(hdev))
650 settings |= MGMT_SETTING_POWERED;
651
652 if (hci_dev_test_flag(hdev, HCI_CONNECTABLE))
653 settings |= MGMT_SETTING_CONNECTABLE;
654
655 if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
656 settings |= MGMT_SETTING_FAST_CONNECTABLE;
657
658 if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
659 settings |= MGMT_SETTING_DISCOVERABLE;
660
661 if (hci_dev_test_flag(hdev, HCI_BONDABLE))
662 settings |= MGMT_SETTING_BONDABLE;
663
664 if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
665 settings |= MGMT_SETTING_BREDR;
666
667 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED))
668 settings |= MGMT_SETTING_LE;
669
670 if (hci_dev_test_flag(hdev, HCI_LINK_SECURITY))
671 settings |= MGMT_SETTING_LINK_SECURITY;
672
673 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
674 settings |= MGMT_SETTING_SSP;
675
676 if (hci_dev_test_flag(hdev, HCI_HS_ENABLED))
677 settings |= MGMT_SETTING_HS;
678
679 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
680 settings |= MGMT_SETTING_ADVERTISING;
681
682 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED))
683 settings |= MGMT_SETTING_SECURE_CONN;
684
685 if (hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS))
686 settings |= MGMT_SETTING_DEBUG_KEYS;
687
688 if (hci_dev_test_flag(hdev, HCI_PRIVACY))
689 settings |= MGMT_SETTING_PRIVACY;
690
691 /* The current setting for static address has two purposes. The
692 * first is to indicate if the static address will be used and
693 * the second is to indicate if it is actually set.
694 *
695 * This means if the static address is not configured, this flag
696 * will never be set. If the address is configured, then if the
697 * address is actually used decides if the flag is set or not.
698 *
699 * For single mode LE only controllers and dual-mode controllers
700 * with BR/EDR disabled, the existence of the static address will
701 * be evaluated.
702 */
703 if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
704 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
705 !bacmp(&hdev->bdaddr, BDADDR_ANY)) {
706 if (bacmp(&hdev->static_addr, BDADDR_ANY))
707 settings |= MGMT_SETTING_STATIC_ADDRESS;
708 }
709
710 return settings;
711 }
712
713 #define PNP_INFO_SVCLASS_ID 0x1200
714
715 static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
716 {
717 u8 *ptr = data, *uuids_start = NULL;
718 struct bt_uuid *uuid;
719
720 if (len < 4)
721 return ptr;
722
723 list_for_each_entry(uuid, &hdev->uuids, list) {
724 u16 uuid16;
725
726 if (uuid->size != 16)
727 continue;
728
729 uuid16 = get_unaligned_le16(&uuid->uuid[12]);
730 if (uuid16 < 0x1100)
731 continue;
732
733 if (uuid16 == PNP_INFO_SVCLASS_ID)
734 continue;
735
736 if (!uuids_start) {
737 uuids_start = ptr;
738 uuids_start[0] = 1;
739 uuids_start[1] = EIR_UUID16_ALL;
740 ptr += 2;
741 }
742
743 /* Stop if not enough space to put next UUID */
744 if ((ptr - data) + sizeof(u16) > len) {
745 uuids_start[1] = EIR_UUID16_SOME;
746 break;
747 }
748
749 *ptr++ = (uuid16 & 0x00ff);
750 *ptr++ = (uuid16 & 0xff00) >> 8;
751 uuids_start[0] += sizeof(uuid16);
752 }
753
754 return ptr;
755 }
756
757 static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
758 {
759 u8 *ptr = data, *uuids_start = NULL;
760 struct bt_uuid *uuid;
761
762 if (len < 6)
763 return ptr;
764
765 list_for_each_entry(uuid, &hdev->uuids, list) {
766 if (uuid->size != 32)
767 continue;
768
769 if (!uuids_start) {
770 uuids_start = ptr;
771 uuids_start[0] = 1;
772 uuids_start[1] = EIR_UUID32_ALL;
773 ptr += 2;
774 }
775
776 /* Stop if not enough space to put next UUID */
777 if ((ptr - data) + sizeof(u32) > len) {
778 uuids_start[1] = EIR_UUID32_SOME;
779 break;
780 }
781
782 memcpy(ptr, &uuid->uuid[12], sizeof(u32));
783 ptr += sizeof(u32);
784 uuids_start[0] += sizeof(u32);
785 }
786
787 return ptr;
788 }
789
790 static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
791 {
792 u8 *ptr = data, *uuids_start = NULL;
793 struct bt_uuid *uuid;
794
795 if (len < 18)
796 return ptr;
797
798 list_for_each_entry(uuid, &hdev->uuids, list) {
799 if (uuid->size != 128)
800 continue;
801
802 if (!uuids_start) {
803 uuids_start = ptr;
804 uuids_start[0] = 1;
805 uuids_start[1] = EIR_UUID128_ALL;
806 ptr += 2;
807 }
808
809 /* Stop if not enough space to put next UUID */
810 if ((ptr - data) + 16 > len) {
811 uuids_start[1] = EIR_UUID128_SOME;
812 break;
813 }
814
815 memcpy(ptr, uuid->uuid, 16);
816 ptr += 16;
817 uuids_start[0] += 16;
818 }
819
820 return ptr;
821 }
822
823 static struct mgmt_pending_cmd *pending_find(u16 opcode, struct hci_dev *hdev)
824 {
825 return mgmt_pending_find(HCI_CHANNEL_CONTROL, opcode, hdev);
826 }
827
828 static struct mgmt_pending_cmd *pending_find_data(u16 opcode,
829 struct hci_dev *hdev,
830 const void *data)
831 {
832 return mgmt_pending_find_data(HCI_CHANNEL_CONTROL, opcode, hdev, data);
833 }
834
835 static u8 get_current_adv_instance(struct hci_dev *hdev)
836 {
837 /* The "Set Advertising" setting supersedes the "Add Advertising"
838 * setting. Here we set the advertising data based on which
839 * setting was set. When neither apply, default to the global settings,
840 * represented by instance "0".
841 */
842 if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
843 !hci_dev_test_flag(hdev, HCI_ADVERTISING))
844 return hdev->cur_adv_instance;
845
846 return 0x00;
847 }
848
849 static u8 create_default_scan_rsp_data(struct hci_dev *hdev, u8 *ptr)
850 {
851 u8 ad_len = 0;
852 size_t name_len;
853
854 name_len = strlen(hdev->dev_name);
855 if (name_len > 0) {
856 size_t max_len = HCI_MAX_AD_LENGTH - ad_len - 2;
857
858 if (name_len > max_len) {
859 name_len = max_len;
860 ptr[1] = EIR_NAME_SHORT;
861 } else
862 ptr[1] = EIR_NAME_COMPLETE;
863
864 ptr[0] = name_len + 1;
865
866 memcpy(ptr + 2, hdev->dev_name, name_len);
867
868 ad_len += (name_len + 2);
869 ptr += (name_len + 2);
870 }
871
872 return ad_len;
873 }
874
875 static u8 create_instance_scan_rsp_data(struct hci_dev *hdev, u8 instance,
876 u8 *ptr)
877 {
878 struct adv_info *adv_instance;
879
880 adv_instance = hci_find_adv_instance(hdev, instance);
881 if (!adv_instance)
882 return 0;
883
884 /* TODO: Set the appropriate entries based on advertising instance flags
885 * here once flags other than 0 are supported.
886 */
887 memcpy(ptr, adv_instance->scan_rsp_data,
888 adv_instance->scan_rsp_len);
889
890 return adv_instance->scan_rsp_len;
891 }
892
893 static void update_inst_scan_rsp_data(struct hci_request *req, u8 instance)
894 {
895 struct hci_dev *hdev = req->hdev;
896 struct hci_cp_le_set_scan_rsp_data cp;
897 u8 len;
898
899 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
900 return;
901
902 memset(&cp, 0, sizeof(cp));
903
904 if (instance)
905 len = create_instance_scan_rsp_data(hdev, instance, cp.data);
906 else
907 len = create_default_scan_rsp_data(hdev, cp.data);
908
909 if (hdev->scan_rsp_data_len == len &&
910 !memcmp(cp.data, hdev->scan_rsp_data, len))
911 return;
912
913 memcpy(hdev->scan_rsp_data, cp.data, sizeof(cp.data));
914 hdev->scan_rsp_data_len = len;
915
916 cp.length = len;
917
918 hci_req_add(req, HCI_OP_LE_SET_SCAN_RSP_DATA, sizeof(cp), &cp);
919 }
920
921 static void update_scan_rsp_data(struct hci_request *req)
922 {
923 update_inst_scan_rsp_data(req, get_current_adv_instance(req->hdev));
924 }
925
926 static u8 get_adv_discov_flags(struct hci_dev *hdev)
927 {
928 struct mgmt_pending_cmd *cmd;
929
930 /* If there's a pending mgmt command the flags will not yet have
931 * their final values, so check for this first.
932 */
933 cmd = pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
934 if (cmd) {
935 struct mgmt_mode *cp = cmd->param;
936 if (cp->val == 0x01)
937 return LE_AD_GENERAL;
938 else if (cp->val == 0x02)
939 return LE_AD_LIMITED;
940 } else {
941 if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
942 return LE_AD_LIMITED;
943 else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
944 return LE_AD_GENERAL;
945 }
946
947 return 0;
948 }
949
950 static bool get_connectable(struct hci_dev *hdev)
951 {
952 struct mgmt_pending_cmd *cmd;
953
954 /* If there's a pending mgmt command the flag will not yet have
955 * it's final value, so check for this first.
956 */
957 cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
958 if (cmd) {
959 struct mgmt_mode *cp = cmd->param;
960
961 return cp->val;
962 }
963
964 return hci_dev_test_flag(hdev, HCI_CONNECTABLE);
965 }
966
967 static u32 get_adv_instance_flags(struct hci_dev *hdev, u8 instance)
968 {
969 u32 flags;
970 struct adv_info *adv_instance;
971
972 if (instance == 0x00) {
973 /* Instance 0 always manages the "Tx Power" and "Flags"
974 * fields
975 */
976 flags = MGMT_ADV_FLAG_TX_POWER | MGMT_ADV_FLAG_MANAGED_FLAGS;
977
978 /* For instance 0, the HCI_ADVERTISING_CONNECTABLE setting
979 * corresponds to the "connectable" instance flag.
980 */
981 if (hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE))
982 flags |= MGMT_ADV_FLAG_CONNECTABLE;
983
984 return flags;
985 }
986
987 adv_instance = hci_find_adv_instance(hdev, instance);
988
989 /* Return 0 when we got an invalid instance identifier. */
990 if (!adv_instance)
991 return 0;
992
993 return adv_instance->flags;
994 }
995
996 static u8 get_cur_adv_instance_scan_rsp_len(struct hci_dev *hdev)
997 {
998 u8 instance = get_current_adv_instance(hdev);
999 struct adv_info *adv_instance;
1000
1001 /* Ignore instance 0 */
1002 if (instance == 0x00)
1003 return 0;
1004
1005 adv_instance = hci_find_adv_instance(hdev, instance);
1006 if (!adv_instance)
1007 return 0;
1008
1009 /* TODO: Take into account the "appearance" and "local-name" flags here.
1010 * These are currently being ignored as they are not supported.
1011 */
1012 return adv_instance->scan_rsp_len;
1013 }
1014
1015 static u8 create_instance_adv_data(struct hci_dev *hdev, u8 instance, u8 *ptr)
1016 {
1017 struct adv_info *adv_instance = NULL;
1018 u8 ad_len = 0, flags = 0;
1019 u32 instance_flags;
1020
1021 /* Return 0 when the current instance identifier is invalid. */
1022 if (instance) {
1023 adv_instance = hci_find_adv_instance(hdev, instance);
1024 if (!adv_instance)
1025 return 0;
1026 }
1027
1028 instance_flags = get_adv_instance_flags(hdev, instance);
1029
1030 /* The Add Advertising command allows userspace to set both the general
1031 * and limited discoverable flags.
1032 */
1033 if (instance_flags & MGMT_ADV_FLAG_DISCOV)
1034 flags |= LE_AD_GENERAL;
1035
1036 if (instance_flags & MGMT_ADV_FLAG_LIMITED_DISCOV)
1037 flags |= LE_AD_LIMITED;
1038
1039 if (flags || (instance_flags & MGMT_ADV_FLAG_MANAGED_FLAGS)) {
1040 /* If a discovery flag wasn't provided, simply use the global
1041 * settings.
1042 */
1043 if (!flags)
1044 flags |= get_adv_discov_flags(hdev);
1045
1046 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1047 flags |= LE_AD_NO_BREDR;
1048
1049 /* If flags would still be empty, then there is no need to
1050 * include the "Flags" AD field".
1051 */
1052 if (flags) {
1053 ptr[0] = 0x02;
1054 ptr[1] = EIR_FLAGS;
1055 ptr[2] = flags;
1056
1057 ad_len += 3;
1058 ptr += 3;
1059 }
1060 }
1061
1062 if (adv_instance) {
1063 memcpy(ptr, adv_instance->adv_data,
1064 adv_instance->adv_data_len);
1065 ad_len += adv_instance->adv_data_len;
1066 ptr += adv_instance->adv_data_len;
1067 }
1068
1069 /* Provide Tx Power only if we can provide a valid value for it */
1070 if (hdev->adv_tx_power != HCI_TX_POWER_INVALID &&
1071 (instance_flags & MGMT_ADV_FLAG_TX_POWER)) {
1072 ptr[0] = 0x02;
1073 ptr[1] = EIR_TX_POWER;
1074 ptr[2] = (u8)hdev->adv_tx_power;
1075
1076 ad_len += 3;
1077 ptr += 3;
1078 }
1079
1080 return ad_len;
1081 }
1082
1083 static void update_inst_adv_data(struct hci_request *req, u8 instance)
1084 {
1085 struct hci_dev *hdev = req->hdev;
1086 struct hci_cp_le_set_adv_data cp;
1087 u8 len;
1088
1089 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
1090 return;
1091
1092 memset(&cp, 0, sizeof(cp));
1093
1094 len = create_instance_adv_data(hdev, instance, cp.data);
1095
1096 /* There's nothing to do if the data hasn't changed */
1097 if (hdev->adv_data_len == len &&
1098 memcmp(cp.data, hdev->adv_data, len) == 0)
1099 return;
1100
1101 memcpy(hdev->adv_data, cp.data, sizeof(cp.data));
1102 hdev->adv_data_len = len;
1103
1104 cp.length = len;
1105
1106 hci_req_add(req, HCI_OP_LE_SET_ADV_DATA, sizeof(cp), &cp);
1107 }
1108
1109 static void update_adv_data(struct hci_request *req)
1110 {
1111 update_inst_adv_data(req, get_current_adv_instance(req->hdev));
1112 }
1113
1114 int mgmt_update_adv_data(struct hci_dev *hdev)
1115 {
1116 struct hci_request req;
1117
1118 hci_req_init(&req, hdev);
1119 update_adv_data(&req);
1120
1121 return hci_req_run(&req, NULL);
1122 }
1123
1124 static void create_eir(struct hci_dev *hdev, u8 *data)
1125 {
1126 u8 *ptr = data;
1127 size_t name_len;
1128
1129 name_len = strlen(hdev->dev_name);
1130
1131 if (name_len > 0) {
1132 /* EIR Data type */
1133 if (name_len > 48) {
1134 name_len = 48;
1135 ptr[1] = EIR_NAME_SHORT;
1136 } else
1137 ptr[1] = EIR_NAME_COMPLETE;
1138
1139 /* EIR Data length */
1140 ptr[0] = name_len + 1;
1141
1142 memcpy(ptr + 2, hdev->dev_name, name_len);
1143
1144 ptr += (name_len + 2);
1145 }
1146
1147 if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) {
1148 ptr[0] = 2;
1149 ptr[1] = EIR_TX_POWER;
1150 ptr[2] = (u8) hdev->inq_tx_power;
1151
1152 ptr += 3;
1153 }
1154
1155 if (hdev->devid_source > 0) {
1156 ptr[0] = 9;
1157 ptr[1] = EIR_DEVICE_ID;
1158
1159 put_unaligned_le16(hdev->devid_source, ptr + 2);
1160 put_unaligned_le16(hdev->devid_vendor, ptr + 4);
1161 put_unaligned_le16(hdev->devid_product, ptr + 6);
1162 put_unaligned_le16(hdev->devid_version, ptr + 8);
1163
1164 ptr += 10;
1165 }
1166
1167 ptr = create_uuid16_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1168 ptr = create_uuid32_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1169 ptr = create_uuid128_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
1170 }
1171
1172 static void update_eir(struct hci_request *req)
1173 {
1174 struct hci_dev *hdev = req->hdev;
1175 struct hci_cp_write_eir cp;
1176
1177 if (!hdev_is_powered(hdev))
1178 return;
1179
1180 if (!lmp_ext_inq_capable(hdev))
1181 return;
1182
1183 if (!hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
1184 return;
1185
1186 if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
1187 return;
1188
1189 memset(&cp, 0, sizeof(cp));
1190
1191 create_eir(hdev, cp.data);
1192
1193 if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
1194 return;
1195
1196 memcpy(hdev->eir, cp.data, sizeof(cp.data));
1197
1198 hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
1199 }
1200
1201 static u8 get_service_classes(struct hci_dev *hdev)
1202 {
1203 struct bt_uuid *uuid;
1204 u8 val = 0;
1205
1206 list_for_each_entry(uuid, &hdev->uuids, list)
1207 val |= uuid->svc_hint;
1208
1209 return val;
1210 }
1211
1212 static void update_class(struct hci_request *req)
1213 {
1214 struct hci_dev *hdev = req->hdev;
1215 u8 cod[3];
1216
1217 BT_DBG("%s", hdev->name);
1218
1219 if (!hdev_is_powered(hdev))
1220 return;
1221
1222 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1223 return;
1224
1225 if (hci_dev_test_flag(hdev, HCI_SERVICE_CACHE))
1226 return;
1227
1228 cod[0] = hdev->minor_class;
1229 cod[1] = hdev->major_class;
1230 cod[2] = get_service_classes(hdev);
1231
1232 if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
1233 cod[1] |= 0x20;
1234
1235 if (memcmp(cod, hdev->dev_class, 3) == 0)
1236 return;
1237
1238 hci_req_add(req, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod);
1239 }
1240
1241 static void disable_advertising(struct hci_request *req)
1242 {
1243 u8 enable = 0x00;
1244
1245 hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
1246 }
1247
1248 static void enable_advertising(struct hci_request *req)
1249 {
1250 struct hci_dev *hdev = req->hdev;
1251 struct hci_cp_le_set_adv_param cp;
1252 u8 own_addr_type, enable = 0x01;
1253 bool connectable;
1254 u8 instance;
1255 u32 flags;
1256
1257 if (hci_conn_num(hdev, LE_LINK) > 0)
1258 return;
1259
1260 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
1261 disable_advertising(req);
1262
1263 /* Clear the HCI_LE_ADV bit temporarily so that the
1264 * hci_update_random_address knows that it's safe to go ahead
1265 * and write a new random address. The flag will be set back on
1266 * as soon as the SET_ADV_ENABLE HCI command completes.
1267 */
1268 hci_dev_clear_flag(hdev, HCI_LE_ADV);
1269
1270 instance = get_current_adv_instance(hdev);
1271 flags = get_adv_instance_flags(hdev, instance);
1272
1273 /* If the "connectable" instance flag was not set, then choose between
1274 * ADV_IND and ADV_NONCONN_IND based on the global connectable setting.
1275 */
1276 connectable = (flags & MGMT_ADV_FLAG_CONNECTABLE) ||
1277 get_connectable(hdev);
1278
1279 /* Set require_privacy to true only when non-connectable
1280 * advertising is used. In that case it is fine to use a
1281 * non-resolvable private address.
1282 */
1283 if (hci_update_random_address(req, !connectable, &own_addr_type) < 0)
1284 return;
1285
1286 memset(&cp, 0, sizeof(cp));
1287 cp.min_interval = cpu_to_le16(hdev->le_adv_min_interval);
1288 cp.max_interval = cpu_to_le16(hdev->le_adv_max_interval);
1289
1290 if (connectable)
1291 cp.type = LE_ADV_IND;
1292 else if (get_cur_adv_instance_scan_rsp_len(hdev))
1293 cp.type = LE_ADV_SCAN_IND;
1294 else
1295 cp.type = LE_ADV_NONCONN_IND;
1296
1297 cp.own_address_type = own_addr_type;
1298 cp.channel_map = hdev->le_adv_channel_map;
1299
1300 hci_req_add(req, HCI_OP_LE_SET_ADV_PARAM, sizeof(cp), &cp);
1301
1302 hci_req_add(req, HCI_OP_LE_SET_ADV_ENABLE, sizeof(enable), &enable);
1303 }
1304
1305 static void service_cache_off(struct work_struct *work)
1306 {
1307 struct hci_dev *hdev = container_of(work, struct hci_dev,
1308 service_cache.work);
1309 struct hci_request req;
1310
1311 if (!hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE))
1312 return;
1313
1314 hci_req_init(&req, hdev);
1315
1316 hci_dev_lock(hdev);
1317
1318 update_eir(&req);
1319 update_class(&req);
1320
1321 hci_dev_unlock(hdev);
1322
1323 hci_req_run(&req, NULL);
1324 }
1325
1326 static void rpa_expired(struct work_struct *work)
1327 {
1328 struct hci_dev *hdev = container_of(work, struct hci_dev,
1329 rpa_expired.work);
1330 struct hci_request req;
1331
1332 BT_DBG("");
1333
1334 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
1335
1336 if (!hci_dev_test_flag(hdev, HCI_ADVERTISING))
1337 return;
1338
1339 /* The generation of a new RPA and programming it into the
1340 * controller happens in the enable_advertising() function.
1341 */
1342 hci_req_init(&req, hdev);
1343 enable_advertising(&req);
1344 hci_req_run(&req, NULL);
1345 }
1346
1347 static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
1348 {
1349 if (hci_dev_test_and_set_flag(hdev, HCI_MGMT))
1350 return;
1351
1352 INIT_DELAYED_WORK(&hdev->service_cache, service_cache_off);
1353 INIT_DELAYED_WORK(&hdev->rpa_expired, rpa_expired);
1354
1355 /* Non-mgmt controlled devices get this bit set
1356 * implicitly so that pairing works for them, however
1357 * for mgmt we require user-space to explicitly enable
1358 * it
1359 */
1360 hci_dev_clear_flag(hdev, HCI_BONDABLE);
1361 }
1362
1363 static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
1364 void *data, u16 data_len)
1365 {
1366 struct mgmt_rp_read_info rp;
1367
1368 BT_DBG("sock %p %s", sk, hdev->name);
1369
1370 hci_dev_lock(hdev);
1371
1372 memset(&rp, 0, sizeof(rp));
1373
1374 bacpy(&rp.bdaddr, &hdev->bdaddr);
1375
1376 rp.version = hdev->hci_ver;
1377 rp.manufacturer = cpu_to_le16(hdev->manufacturer);
1378
1379 rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
1380 rp.current_settings = cpu_to_le32(get_current_settings(hdev));
1381
1382 memcpy(rp.dev_class, hdev->dev_class, 3);
1383
1384 memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
1385 memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));
1386
1387 hci_dev_unlock(hdev);
1388
1389 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,
1390 sizeof(rp));
1391 }
1392
1393 static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
1394 {
1395 __le32 settings = cpu_to_le32(get_current_settings(hdev));
1396
1397 return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &settings,
1398 sizeof(settings));
1399 }
1400
1401 static void clean_up_hci_complete(struct hci_dev *hdev, u8 status, u16 opcode)
1402 {
1403 BT_DBG("%s status 0x%02x", hdev->name, status);
1404
1405 if (hci_conn_count(hdev) == 0) {
1406 cancel_delayed_work(&hdev->power_off);
1407 queue_work(hdev->req_workqueue, &hdev->power_off.work);
1408 }
1409 }
1410
1411 static bool hci_stop_discovery(struct hci_request *req)
1412 {
1413 struct hci_dev *hdev = req->hdev;
1414 struct hci_cp_remote_name_req_cancel cp;
1415 struct inquiry_entry *e;
1416
1417 switch (hdev->discovery.state) {
1418 case DISCOVERY_FINDING:
1419 if (test_bit(HCI_INQUIRY, &hdev->flags))
1420 hci_req_add(req, HCI_OP_INQUIRY_CANCEL, 0, NULL);
1421
1422 if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) {
1423 cancel_delayed_work(&hdev->le_scan_disable);
1424 hci_req_add_le_scan_disable(req);
1425 }
1426
1427 return true;
1428
1429 case DISCOVERY_RESOLVING:
1430 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,
1431 NAME_PENDING);
1432 if (!e)
1433 break;
1434
1435 bacpy(&cp.bdaddr, &e->data.bdaddr);
1436 hci_req_add(req, HCI_OP_REMOTE_NAME_REQ_CANCEL, sizeof(cp),
1437 &cp);
1438
1439 return true;
1440
1441 default:
1442 /* Passive scanning */
1443 if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) {
1444 hci_req_add_le_scan_disable(req);
1445 return true;
1446 }
1447
1448 break;
1449 }
1450
1451 return false;
1452 }
1453
1454 static void advertising_added(struct sock *sk, struct hci_dev *hdev,
1455 u8 instance)
1456 {
1457 struct mgmt_ev_advertising_added ev;
1458
1459 ev.instance = instance;
1460
1461 mgmt_event(MGMT_EV_ADVERTISING_ADDED, hdev, &ev, sizeof(ev), sk);
1462 }
1463
1464 static void advertising_removed(struct sock *sk, struct hci_dev *hdev,
1465 u8 instance)
1466 {
1467 struct mgmt_ev_advertising_removed ev;
1468
1469 ev.instance = instance;
1470
1471 mgmt_event(MGMT_EV_ADVERTISING_REMOVED, hdev, &ev, sizeof(ev), sk);
1472 }
1473
1474 static int schedule_adv_instance(struct hci_request *req, u8 instance,
1475 bool force) {
1476 struct hci_dev *hdev = req->hdev;
1477 struct adv_info *adv_instance = NULL;
1478 u16 timeout;
1479
1480 if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
1481 !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
1482 return -EPERM;
1483
1484 if (hdev->adv_instance_timeout)
1485 return -EBUSY;
1486
1487 adv_instance = hci_find_adv_instance(hdev, instance);
1488 if (!adv_instance)
1489 return -ENOENT;
1490
1491 /* A zero timeout means unlimited advertising. As long as there is
1492 * only one instance, duration should be ignored. We still set a timeout
1493 * in case further instances are being added later on.
1494 *
1495 * If the remaining lifetime of the instance is more than the duration
1496 * then the timeout corresponds to the duration, otherwise it will be
1497 * reduced to the remaining instance lifetime.
1498 */
1499 if (adv_instance->timeout == 0 ||
1500 adv_instance->duration <= adv_instance->remaining_time)
1501 timeout = adv_instance->duration;
1502 else
1503 timeout = adv_instance->remaining_time;
1504
1505 /* The remaining time is being reduced unless the instance is being
1506 * advertised without time limit.
1507 */
1508 if (adv_instance->timeout)
1509 adv_instance->remaining_time =
1510 adv_instance->remaining_time - timeout;
1511
1512 hdev->adv_instance_timeout = timeout;
1513 queue_delayed_work(hdev->workqueue,
1514 &hdev->adv_instance_expire,
1515 msecs_to_jiffies(timeout * 1000));
1516
1517 /* If we're just re-scheduling the same instance again then do not
1518 * execute any HCI commands. This happens when a single instance is
1519 * being advertised.
1520 */
1521 if (!force && hdev->cur_adv_instance == instance &&
1522 hci_dev_test_flag(hdev, HCI_LE_ADV))
1523 return 0;
1524
1525 hdev->cur_adv_instance = instance;
1526 update_adv_data(req);
1527 update_scan_rsp_data(req);
1528 enable_advertising(req);
1529
1530 return 0;
1531 }
1532
1533 static void cancel_adv_timeout(struct hci_dev *hdev)
1534 {
1535 if (hdev->adv_instance_timeout) {
1536 hdev->adv_instance_timeout = 0;
1537 cancel_delayed_work(&hdev->adv_instance_expire);
1538 }
1539 }
1540
1541 /* For a single instance:
1542 * - force == true: The instance will be removed even when its remaining
1543 * lifetime is not zero.
1544 * - force == false: the instance will be deactivated but kept stored unless
1545 * the remaining lifetime is zero.
1546 *
1547 * For instance == 0x00:
1548 * - force == true: All instances will be removed regardless of their timeout
1549 * setting.
1550 * - force == false: Only instances that have a timeout will be removed.
1551 */
1552 static void clear_adv_instance(struct hci_dev *hdev, struct hci_request *req,
1553 u8 instance, bool force)
1554 {
1555 struct adv_info *adv_instance, *n, *next_instance = NULL;
1556 int err;
1557 u8 rem_inst;
1558
1559 /* Cancel any timeout concerning the removed instance(s). */
1560 if (!instance || hdev->cur_adv_instance == instance)
1561 cancel_adv_timeout(hdev);
1562
1563 /* Get the next instance to advertise BEFORE we remove
1564 * the current one. This can be the same instance again
1565 * if there is only one instance.
1566 */
1567 if (instance && hdev->cur_adv_instance == instance)
1568 next_instance = hci_get_next_instance(hdev, instance);
1569
1570 if (instance == 0x00) {
1571 list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances,
1572 list) {
1573 if (!(force || adv_instance->timeout))
1574 continue;
1575
1576 rem_inst = adv_instance->instance;
1577 err = hci_remove_adv_instance(hdev, rem_inst);
1578 if (!err)
1579 advertising_removed(NULL, hdev, rem_inst);
1580 }
1581 hdev->cur_adv_instance = 0x00;
1582 } else {
1583 adv_instance = hci_find_adv_instance(hdev, instance);
1584
1585 if (force || (adv_instance && adv_instance->timeout &&
1586 !adv_instance->remaining_time)) {
1587 /* Don't advertise a removed instance. */
1588 if (next_instance &&
1589 next_instance->instance == instance)
1590 next_instance = NULL;
1591
1592 err = hci_remove_adv_instance(hdev, instance);
1593 if (!err)
1594 advertising_removed(NULL, hdev, instance);
1595 }
1596 }
1597
1598 if (list_empty(&hdev->adv_instances)) {
1599 hdev->cur_adv_instance = 0x00;
1600 hci_dev_clear_flag(hdev, HCI_ADVERTISING_INSTANCE);
1601 }
1602
1603 if (!req || !hdev_is_powered(hdev) ||
1604 hci_dev_test_flag(hdev, HCI_ADVERTISING))
1605 return;
1606
1607 if (next_instance)
1608 schedule_adv_instance(req, next_instance->instance, false);
1609 }
1610
1611 static int clean_up_hci_state(struct hci_dev *hdev)
1612 {
1613 struct hci_request req;
1614 struct hci_conn *conn;
1615 bool discov_stopped;
1616 int err;
1617
1618 hci_req_init(&req, hdev);
1619
1620 if (test_bit(HCI_ISCAN, &hdev->flags) ||
1621 test_bit(HCI_PSCAN, &hdev->flags)) {
1622 u8 scan = 0x00;
1623 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
1624 }
1625
1626 clear_adv_instance(hdev, NULL, 0x00, false);
1627
1628 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
1629 disable_advertising(&req);
1630
1631 discov_stopped = hci_stop_discovery(&req);
1632
1633 list_for_each_entry(conn, &hdev->conn_hash.list, list) {
1634 struct hci_cp_disconnect dc;
1635 struct hci_cp_reject_conn_req rej;
1636
1637 switch (conn->state) {
1638 case BT_CONNECTED:
1639 case BT_CONFIG:
1640 dc.handle = cpu_to_le16(conn->handle);
1641 dc.reason = 0x15; /* Terminated due to Power Off */
1642 hci_req_add(&req, HCI_OP_DISCONNECT, sizeof(dc), &dc);
1643 break;
1644 case BT_CONNECT:
1645 if (conn->type == LE_LINK)
1646 hci_req_add(&req, HCI_OP_LE_CREATE_CONN_CANCEL,
1647 0, NULL);
1648 else if (conn->type == ACL_LINK)
1649 hci_req_add(&req, HCI_OP_CREATE_CONN_CANCEL,
1650 6, &conn->dst);
1651 break;
1652 case BT_CONNECT2:
1653 bacpy(&rej.bdaddr, &conn->dst);
1654 rej.reason = 0x15; /* Terminated due to Power Off */
1655 if (conn->type == ACL_LINK)
1656 hci_req_add(&req, HCI_OP_REJECT_CONN_REQ,
1657 sizeof(rej), &rej);
1658 else if (conn->type == SCO_LINK)
1659 hci_req_add(&req, HCI_OP_REJECT_SYNC_CONN_REQ,
1660 sizeof(rej), &rej);
1661 break;
1662 }
1663 }
1664
1665 err = hci_req_run(&req, clean_up_hci_complete);
1666 if (!err && discov_stopped)
1667 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
1668
1669 return err;
1670 }
1671
1672 static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
1673 u16 len)
1674 {
1675 struct mgmt_mode *cp = data;
1676 struct mgmt_pending_cmd *cmd;
1677 int err;
1678
1679 BT_DBG("request for %s", hdev->name);
1680
1681 if (cp->val != 0x00 && cp->val != 0x01)
1682 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1683 MGMT_STATUS_INVALID_PARAMS);
1684
1685 hci_dev_lock(hdev);
1686
1687 if (pending_find(MGMT_OP_SET_POWERED, hdev)) {
1688 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1689 MGMT_STATUS_BUSY);
1690 goto failed;
1691 }
1692
1693 if (hci_dev_test_and_clear_flag(hdev, HCI_AUTO_OFF)) {
1694 cancel_delayed_work(&hdev->power_off);
1695
1696 if (cp->val) {
1697 mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev,
1698 data, len);
1699 err = mgmt_powered(hdev, 1);
1700 goto failed;
1701 }
1702 }
1703
1704 if (!!cp->val == hdev_is_powered(hdev)) {
1705 err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
1706 goto failed;
1707 }
1708
1709 cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
1710 if (!cmd) {
1711 err = -ENOMEM;
1712 goto failed;
1713 }
1714
1715 if (cp->val) {
1716 queue_work(hdev->req_workqueue, &hdev->power_on);
1717 err = 0;
1718 } else {
1719 /* Disconnect connections, stop scans, etc */
1720 err = clean_up_hci_state(hdev);
1721 if (!err)
1722 queue_delayed_work(hdev->req_workqueue, &hdev->power_off,
1723 HCI_POWER_OFF_TIMEOUT);
1724
1725 /* ENODATA means there were no HCI commands queued */
1726 if (err == -ENODATA) {
1727 cancel_delayed_work(&hdev->power_off);
1728 queue_work(hdev->req_workqueue, &hdev->power_off.work);
1729 err = 0;
1730 }
1731 }
1732
1733 failed:
1734 hci_dev_unlock(hdev);
1735 return err;
1736 }
1737
1738 static int new_settings(struct hci_dev *hdev, struct sock *skip)
1739 {
1740 __le32 ev = cpu_to_le32(get_current_settings(hdev));
1741
1742 return mgmt_generic_event(MGMT_EV_NEW_SETTINGS, hdev, &ev,
1743 sizeof(ev), skip);
1744 }
1745
1746 int mgmt_new_settings(struct hci_dev *hdev)
1747 {
1748 return new_settings(hdev, NULL);
1749 }
1750
1751 struct cmd_lookup {
1752 struct sock *sk;
1753 struct hci_dev *hdev;
1754 u8 mgmt_status;
1755 };
1756
1757 static void settings_rsp(struct mgmt_pending_cmd *cmd, void *data)
1758 {
1759 struct cmd_lookup *match = data;
1760
1761 send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
1762
1763 list_del(&cmd->list);
1764
1765 if (match->sk == NULL) {
1766 match->sk = cmd->sk;
1767 sock_hold(match->sk);
1768 }
1769
1770 mgmt_pending_free(cmd);
1771 }
1772
1773 static void cmd_status_rsp(struct mgmt_pending_cmd *cmd, void *data)
1774 {
1775 u8 *status = data;
1776
1777 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, *status);
1778 mgmt_pending_remove(cmd);
1779 }
1780
1781 static void cmd_complete_rsp(struct mgmt_pending_cmd *cmd, void *data)
1782 {
1783 if (cmd->cmd_complete) {
1784 u8 *status = data;
1785
1786 cmd->cmd_complete(cmd, *status);
1787 mgmt_pending_remove(cmd);
1788
1789 return;
1790 }
1791
1792 cmd_status_rsp(cmd, data);
1793 }
1794
1795 static int generic_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
1796 {
1797 return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
1798 cmd->param, cmd->param_len);
1799 }
1800
1801 static int addr_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
1802 {
1803 return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
1804 cmd->param, sizeof(struct mgmt_addr_info));
1805 }
1806
1807 static u8 mgmt_bredr_support(struct hci_dev *hdev)
1808 {
1809 if (!lmp_bredr_capable(hdev))
1810 return MGMT_STATUS_NOT_SUPPORTED;
1811 else if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1812 return MGMT_STATUS_REJECTED;
1813 else
1814 return MGMT_STATUS_SUCCESS;
1815 }
1816
1817 static u8 mgmt_le_support(struct hci_dev *hdev)
1818 {
1819 if (!lmp_le_capable(hdev))
1820 return MGMT_STATUS_NOT_SUPPORTED;
1821 else if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
1822 return MGMT_STATUS_REJECTED;
1823 else
1824 return MGMT_STATUS_SUCCESS;
1825 }
1826
1827 static void set_discoverable_complete(struct hci_dev *hdev, u8 status,
1828 u16 opcode)
1829 {
1830 struct mgmt_pending_cmd *cmd;
1831 struct mgmt_mode *cp;
1832 struct hci_request req;
1833 bool changed;
1834
1835 BT_DBG("status 0x%02x", status);
1836
1837 hci_dev_lock(hdev);
1838
1839 cmd = pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
1840 if (!cmd)
1841 goto unlock;
1842
1843 if (status) {
1844 u8 mgmt_err = mgmt_status(status);
1845 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
1846 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1847 goto remove_cmd;
1848 }
1849
1850 cp = cmd->param;
1851 if (cp->val) {
1852 changed = !hci_dev_test_and_set_flag(hdev, HCI_DISCOVERABLE);
1853
1854 if (hdev->discov_timeout > 0) {
1855 int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
1856 queue_delayed_work(hdev->workqueue, &hdev->discov_off,
1857 to);
1858 }
1859 } else {
1860 changed = hci_dev_test_and_clear_flag(hdev, HCI_DISCOVERABLE);
1861 }
1862
1863 send_settings_rsp(cmd->sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1864
1865 if (changed)
1866 new_settings(hdev, cmd->sk);
1867
1868 /* When the discoverable mode gets changed, make sure
1869 * that class of device has the limited discoverable
1870 * bit correctly set. Also update page scan based on whitelist
1871 * entries.
1872 */
1873 hci_req_init(&req, hdev);
1874 __hci_update_page_scan(&req);
1875 update_class(&req);
1876 hci_req_run(&req, NULL);
1877
1878 remove_cmd:
1879 mgmt_pending_remove(cmd);
1880
1881 unlock:
1882 hci_dev_unlock(hdev);
1883 }
1884
1885 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
1886 u16 len)
1887 {
1888 struct mgmt_cp_set_discoverable *cp = data;
1889 struct mgmt_pending_cmd *cmd;
1890 struct hci_request req;
1891 u16 timeout;
1892 u8 scan;
1893 int err;
1894
1895 BT_DBG("request for %s", hdev->name);
1896
1897 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
1898 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1899 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1900 MGMT_STATUS_REJECTED);
1901
1902 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
1903 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1904 MGMT_STATUS_INVALID_PARAMS);
1905
1906 timeout = __le16_to_cpu(cp->timeout);
1907
1908 /* Disabling discoverable requires that no timeout is set,
1909 * and enabling limited discoverable requires a timeout.
1910 */
1911 if ((cp->val == 0x00 && timeout > 0) ||
1912 (cp->val == 0x02 && timeout == 0))
1913 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1914 MGMT_STATUS_INVALID_PARAMS);
1915
1916 hci_dev_lock(hdev);
1917
1918 if (!hdev_is_powered(hdev) && timeout > 0) {
1919 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1920 MGMT_STATUS_NOT_POWERED);
1921 goto failed;
1922 }
1923
1924 if (pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
1925 pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
1926 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1927 MGMT_STATUS_BUSY);
1928 goto failed;
1929 }
1930
1931 if (!hci_dev_test_flag(hdev, HCI_CONNECTABLE)) {
1932 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1933 MGMT_STATUS_REJECTED);
1934 goto failed;
1935 }
1936
1937 if (!hdev_is_powered(hdev)) {
1938 bool changed = false;
1939
1940 /* Setting limited discoverable when powered off is
1941 * not a valid operation since it requires a timeout
1942 * and so no need to check HCI_LIMITED_DISCOVERABLE.
1943 */
1944 if (!!cp->val != hci_dev_test_flag(hdev, HCI_DISCOVERABLE)) {
1945 hci_dev_change_flag(hdev, HCI_DISCOVERABLE);
1946 changed = true;
1947 }
1948
1949 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1950 if (err < 0)
1951 goto failed;
1952
1953 if (changed)
1954 err = new_settings(hdev, sk);
1955
1956 goto failed;
1957 }
1958
1959 /* If the current mode is the same, then just update the timeout
1960 * value with the new value. And if only the timeout gets updated,
1961 * then no need for any HCI transactions.
1962 */
1963 if (!!cp->val == hci_dev_test_flag(hdev, HCI_DISCOVERABLE) &&
1964 (cp->val == 0x02) == hci_dev_test_flag(hdev,
1965 HCI_LIMITED_DISCOVERABLE)) {
1966 cancel_delayed_work(&hdev->discov_off);
1967 hdev->discov_timeout = timeout;
1968
1969 if (cp->val && hdev->discov_timeout > 0) {
1970 int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
1971 queue_delayed_work(hdev->workqueue, &hdev->discov_off,
1972 to);
1973 }
1974
1975 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1976 goto failed;
1977 }
1978
1979 cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
1980 if (!cmd) {
1981 err = -ENOMEM;
1982 goto failed;
1983 }
1984
1985 /* Cancel any potential discoverable timeout that might be
1986 * still active and store new timeout value. The arming of
1987 * the timeout happens in the complete handler.
1988 */
1989 cancel_delayed_work(&hdev->discov_off);
1990 hdev->discov_timeout = timeout;
1991
1992 /* Limited discoverable mode */
1993 if (cp->val == 0x02)
1994 hci_dev_set_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1995 else
1996 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1997
1998 hci_req_init(&req, hdev);
1999
2000 /* The procedure for LE-only controllers is much simpler - just
2001 * update the advertising data.
2002 */
2003 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2004 goto update_ad;
2005
2006 scan = SCAN_PAGE;
2007
2008 if (cp->val) {
2009 struct hci_cp_write_current_iac_lap hci_cp;
2010
2011 if (cp->val == 0x02) {
2012 /* Limited discoverable mode */
2013 hci_cp.num_iac = min_t(u8, hdev->num_iac, 2);
2014 hci_cp.iac_lap[0] = 0x00; /* LIAC */
2015 hci_cp.iac_lap[1] = 0x8b;
2016 hci_cp.iac_lap[2] = 0x9e;
2017 hci_cp.iac_lap[3] = 0x33; /* GIAC */
2018 hci_cp.iac_lap[4] = 0x8b;
2019 hci_cp.iac_lap[5] = 0x9e;
2020 } else {
2021 /* General discoverable mode */
2022 hci_cp.num_iac = 1;
2023 hci_cp.iac_lap[0] = 0x33; /* GIAC */
2024 hci_cp.iac_lap[1] = 0x8b;
2025 hci_cp.iac_lap[2] = 0x9e;
2026 }
2027
2028 hci_req_add(&req, HCI_OP_WRITE_CURRENT_IAC_LAP,
2029 (hci_cp.num_iac * 3) + 1, &hci_cp);
2030
2031 scan |= SCAN_INQUIRY;
2032 } else {
2033 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
2034 }
2035
2036 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, sizeof(scan), &scan);
2037
2038 update_ad:
2039 update_adv_data(&req);
2040
2041 err = hci_req_run(&req, set_discoverable_complete);
2042 if (err < 0)
2043 mgmt_pending_remove(cmd);
2044
2045 failed:
2046 hci_dev_unlock(hdev);
2047 return err;
2048 }
2049
2050 static void write_fast_connectable(struct hci_request *req, bool enable)
2051 {
2052 struct hci_dev *hdev = req->hdev;
2053 struct hci_cp_write_page_scan_activity acp;
2054 u8 type;
2055
2056 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2057 return;
2058
2059 if (hdev->hci_ver < BLUETOOTH_VER_1_2)
2060 return;
2061
2062 if (enable) {
2063 type = PAGE_SCAN_TYPE_INTERLACED;
2064
2065 /* 160 msec page scan interval */
2066 acp.interval = cpu_to_le16(0x0100);
2067 } else {
2068 type = PAGE_SCAN_TYPE_STANDARD; /* default */
2069
2070 /* default 1.28 sec page scan */
2071 acp.interval = cpu_to_le16(0x0800);
2072 }
2073
2074 acp.window = cpu_to_le16(0x0012);
2075
2076 if (__cpu_to_le16(hdev->page_scan_interval) != acp.interval ||
2077 __cpu_to_le16(hdev->page_scan_window) != acp.window)
2078 hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
2079 sizeof(acp), &acp);
2080
2081 if (hdev->page_scan_type != type)
2082 hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
2083 }
2084
2085 static void set_connectable_complete(struct hci_dev *hdev, u8 status,
2086 u16 opcode)
2087 {
2088 struct mgmt_pending_cmd *cmd;
2089 struct mgmt_mode *cp;
2090 bool conn_changed, discov_changed;
2091
2092 BT_DBG("status 0x%02x", status);
2093
2094 hci_dev_lock(hdev);
2095
2096 cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
2097 if (!cmd)
2098 goto unlock;
2099
2100 if (status) {
2101 u8 mgmt_err = mgmt_status(status);
2102 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
2103 goto remove_cmd;
2104 }
2105
2106 cp = cmd->param;
2107 if (cp->val) {
2108 conn_changed = !hci_dev_test_and_set_flag(hdev,
2109 HCI_CONNECTABLE);
2110 discov_changed = false;
2111 } else {
2112 conn_changed = hci_dev_test_and_clear_flag(hdev,
2113 HCI_CONNECTABLE);
2114 discov_changed = hci_dev_test_and_clear_flag(hdev,
2115 HCI_DISCOVERABLE);
2116 }
2117
2118 send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);
2119
2120 if (conn_changed || discov_changed) {
2121 new_settings(hdev, cmd->sk);
2122 hci_update_page_scan(hdev);
2123 if (discov_changed)
2124 mgmt_update_adv_data(hdev);
2125 hci_update_background_scan(hdev);
2126 }
2127
2128 remove_cmd:
2129 mgmt_pending_remove(cmd);
2130
2131 unlock:
2132 hci_dev_unlock(hdev);
2133 }
2134
2135 static int set_connectable_update_settings(struct hci_dev *hdev,
2136 struct sock *sk, u8 val)
2137 {
2138 bool changed = false;
2139 int err;
2140
2141 if (!!val != hci_dev_test_flag(hdev, HCI_CONNECTABLE))
2142 changed = true;
2143
2144 if (val) {
2145 hci_dev_set_flag(hdev, HCI_CONNECTABLE);
2146 } else {
2147 hci_dev_clear_flag(hdev, HCI_CONNECTABLE);
2148 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
2149 }
2150
2151 err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
2152 if (err < 0)
2153 return err;
2154
2155 if (changed) {
2156 hci_update_page_scan(hdev);
2157 hci_update_background_scan(hdev);
2158 return new_settings(hdev, sk);
2159 }
2160
2161 return 0;
2162 }
2163
2164 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
2165 u16 len)
2166 {
2167 struct mgmt_mode *cp = data;
2168 struct mgmt_pending_cmd *cmd;
2169 struct hci_request req;
2170 u8 scan;
2171 int err;
2172
2173 BT_DBG("request for %s", hdev->name);
2174
2175 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
2176 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
2177 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2178 MGMT_STATUS_REJECTED);
2179
2180 if (cp->val != 0x00 && cp->val != 0x01)
2181 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2182 MGMT_STATUS_INVALID_PARAMS);
2183
2184 hci_dev_lock(hdev);
2185
2186 if (!hdev_is_powered(hdev)) {
2187 err = set_connectable_update_settings(hdev, sk, cp->val);
2188 goto failed;
2189 }
2190
2191 if (pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
2192 pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
2193 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
2194 MGMT_STATUS_BUSY);
2195 goto failed;
2196 }
2197
2198 cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
2199 if (!cmd) {
2200 err = -ENOMEM;
2201 goto failed;
2202 }
2203
2204 hci_req_init(&req, hdev);
2205
2206 /* If BR/EDR is not enabled and we disable advertising as a
2207 * by-product of disabling connectable, we need to update the
2208 * advertising flags.
2209 */
2210 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
2211 if (!cp->val) {
2212 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
2213 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
2214 }
2215 update_adv_data(&req);
2216 } else if (cp->val != test_bit(HCI_PSCAN, &hdev->flags)) {
2217 if (cp->val) {
2218 scan = SCAN_PAGE;
2219 } else {
2220 /* If we don't have any whitelist entries just
2221 * disable all scanning. If there are entries
2222 * and we had both page and inquiry scanning
2223 * enabled then fall back to only page scanning.
2224 * Otherwise no changes are needed.
2225 */
2226 if (list_empty(&hdev->whitelist))
2227 scan = SCAN_DISABLED;
2228 else if (test_bit(HCI_ISCAN, &hdev->flags))
2229 scan = SCAN_PAGE;
2230 else
2231 goto no_scan_update;
2232
2233 if (test_bit(HCI_ISCAN, &hdev->flags) &&
2234 hdev->discov_timeout > 0)
2235 cancel_delayed_work(&hdev->discov_off);
2236 }
2237
2238 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
2239 }
2240
2241 no_scan_update:
2242 /* Update the advertising parameters if necessary */
2243 if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
2244 hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
2245 enable_advertising(&req);
2246
2247 err = hci_req_run(&req, set_connectable_complete);
2248 if (err < 0) {
2249 mgmt_pending_remove(cmd);
2250 if (err == -ENODATA)
2251 err = set_connectable_update_settings(hdev, sk,
2252 cp->val);
2253 goto failed;
2254 }
2255
2256 failed:
2257 hci_dev_unlock(hdev);
2258 return err;
2259 }
2260
2261 static int set_bondable(struct sock *sk, struct hci_dev *hdev, void *data,
2262 u16 len)
2263 {
2264 struct mgmt_mode *cp = data;
2265 bool changed;
2266 int err;
2267
2268 BT_DBG("request for %s", hdev->name);
2269
2270 if (cp->val != 0x00 && cp->val != 0x01)
2271 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BONDABLE,
2272 MGMT_STATUS_INVALID_PARAMS);
2273
2274 hci_dev_lock(hdev);
2275
2276 if (cp->val)
2277 changed = !hci_dev_test_and_set_flag(hdev, HCI_BONDABLE);
2278 else
2279 changed = hci_dev_test_and_clear_flag(hdev, HCI_BONDABLE);
2280
2281 err = send_settings_rsp(sk, MGMT_OP_SET_BONDABLE, hdev);
2282 if (err < 0)
2283 goto unlock;
2284
2285 if (changed)
2286 err = new_settings(hdev, sk);
2287
2288 unlock:
2289 hci_dev_unlock(hdev);
2290 return err;
2291 }
2292
2293 static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
2294 u16 len)
2295 {
2296 struct mgmt_mode *cp = data;
2297 struct mgmt_pending_cmd *cmd;
2298 u8 val, status;
2299 int err;
2300
2301 BT_DBG("request for %s", hdev->name);
2302
2303 status = mgmt_bredr_support(hdev);
2304 if (status)
2305 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2306 status);
2307
2308 if (cp->val != 0x00 && cp->val != 0x01)
2309 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2310 MGMT_STATUS_INVALID_PARAMS);
2311
2312 hci_dev_lock(hdev);
2313
2314 if (!hdev_is_powered(hdev)) {
2315 bool changed = false;
2316
2317 if (!!cp->val != hci_dev_test_flag(hdev, HCI_LINK_SECURITY)) {
2318 hci_dev_change_flag(hdev, HCI_LINK_SECURITY);
2319 changed = true;
2320 }
2321
2322 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
2323 if (err < 0)
2324 goto failed;
2325
2326 if (changed)
2327 err = new_settings(hdev, sk);
2328
2329 goto failed;
2330 }
2331
2332 if (pending_find(MGMT_OP_SET_LINK_SECURITY, hdev)) {
2333 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
2334 MGMT_STATUS_BUSY);
2335 goto failed;
2336 }
2337
2338 val = !!cp->val;
2339
2340 if (test_bit(HCI_AUTH, &hdev->flags) == val) {
2341 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
2342 goto failed;
2343 }
2344
2345 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LINK_SECURITY, hdev, data, len);
2346 if (!cmd) {
2347 err = -ENOMEM;
2348 goto failed;
2349 }
2350
2351 err = hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(val), &val);
2352 if (err < 0) {
2353 mgmt_pending_remove(cmd);
2354 goto failed;
2355 }
2356
2357 failed:
2358 hci_dev_unlock(hdev);
2359 return err;
2360 }
2361
2362 static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2363 {
2364 struct mgmt_mode *cp = data;
2365 struct mgmt_pending_cmd *cmd;
2366 u8 status;
2367 int err;
2368
2369 BT_DBG("request for %s", hdev->name);
2370
2371 status = mgmt_bredr_support(hdev);
2372 if (status)
2373 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, status);
2374
2375 if (!lmp_ssp_capable(hdev))
2376 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2377 MGMT_STATUS_NOT_SUPPORTED);
2378
2379 if (cp->val != 0x00 && cp->val != 0x01)
2380 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2381 MGMT_STATUS_INVALID_PARAMS);
2382
2383 hci_dev_lock(hdev);
2384
2385 if (!hdev_is_powered(hdev)) {
2386 bool changed;
2387
2388 if (cp->val) {
2389 changed = !hci_dev_test_and_set_flag(hdev,
2390 HCI_SSP_ENABLED);
2391 } else {
2392 changed = hci_dev_test_and_clear_flag(hdev,
2393 HCI_SSP_ENABLED);
2394 if (!changed)
2395 changed = hci_dev_test_and_clear_flag(hdev,
2396 HCI_HS_ENABLED);
2397 else
2398 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
2399 }
2400
2401 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
2402 if (err < 0)
2403 goto failed;
2404
2405 if (changed)
2406 err = new_settings(hdev, sk);
2407
2408 goto failed;
2409 }
2410
2411 if (pending_find(MGMT_OP_SET_SSP, hdev)) {
2412 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2413 MGMT_STATUS_BUSY);
2414 goto failed;
2415 }
2416
2417 if (!!cp->val == hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
2418 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
2419 goto failed;
2420 }
2421
2422 cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len);
2423 if (!cmd) {
2424 err = -ENOMEM;
2425 goto failed;
2426 }
2427
2428 if (!cp->val && hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS))
2429 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
2430 sizeof(cp->val), &cp->val);
2431
2432 err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, 1, &cp->val);
2433 if (err < 0) {
2434 mgmt_pending_remove(cmd);
2435 goto failed;
2436 }
2437
2438 failed:
2439 hci_dev_unlock(hdev);
2440 return err;
2441 }
2442
2443 static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2444 {
2445 struct mgmt_mode *cp = data;
2446 bool changed;
2447 u8 status;
2448 int err;
2449
2450 BT_DBG("request for %s", hdev->name);
2451
2452 status = mgmt_bredr_support(hdev);
2453 if (status)
2454 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS, status);
2455
2456 if (!lmp_ssp_capable(hdev))
2457 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2458 MGMT_STATUS_NOT_SUPPORTED);
2459
2460 if (!hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
2461 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2462 MGMT_STATUS_REJECTED);
2463
2464 if (cp->val != 0x00 && cp->val != 0x01)
2465 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2466 MGMT_STATUS_INVALID_PARAMS);
2467
2468 hci_dev_lock(hdev);
2469
2470 if (pending_find(MGMT_OP_SET_SSP, hdev)) {
2471 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2472 MGMT_STATUS_BUSY);
2473 goto unlock;
2474 }
2475
2476 if (cp->val) {
2477 changed = !hci_dev_test_and_set_flag(hdev, HCI_HS_ENABLED);
2478 } else {
2479 if (hdev_is_powered(hdev)) {
2480 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2481 MGMT_STATUS_REJECTED);
2482 goto unlock;
2483 }
2484
2485 changed = hci_dev_test_and_clear_flag(hdev, HCI_HS_ENABLED);
2486 }
2487
2488 err = send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
2489 if (err < 0)
2490 goto unlock;
2491
2492 if (changed)
2493 err = new_settings(hdev, sk);
2494
2495 unlock:
2496 hci_dev_unlock(hdev);
2497 return err;
2498 }
2499
2500 static void le_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2501 {
2502 struct cmd_lookup match = { NULL, hdev };
2503
2504 hci_dev_lock(hdev);
2505
2506 if (status) {
2507 u8 mgmt_err = mgmt_status(status);
2508
2509 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp,
2510 &mgmt_err);
2511 goto unlock;
2512 }
2513
2514 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
2515
2516 new_settings(hdev, match.sk);
2517
2518 if (match.sk)
2519 sock_put(match.sk);
2520
2521 /* Make sure the controller has a good default for
2522 * advertising data. Restrict the update to when LE
2523 * has actually been enabled. During power on, the
2524 * update in powered_update_hci will take care of it.
2525 */
2526 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
2527 struct hci_request req;
2528
2529 hci_req_init(&req, hdev);
2530 update_adv_data(&req);
2531 update_scan_rsp_data(&req);
2532 __hci_update_background_scan(&req);
2533 hci_req_run(&req, NULL);
2534 }
2535
2536 unlock:
2537 hci_dev_unlock(hdev);
2538 }
2539
2540 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2541 {
2542 struct mgmt_mode *cp = data;
2543 struct hci_cp_write_le_host_supported hci_cp;
2544 struct mgmt_pending_cmd *cmd;
2545 struct hci_request req;
2546 int err;
2547 u8 val, enabled;
2548
2549 BT_DBG("request for %s", hdev->name);
2550
2551 if (!lmp_le_capable(hdev))
2552 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2553 MGMT_STATUS_NOT_SUPPORTED);
2554
2555 if (cp->val != 0x00 && cp->val != 0x01)
2556 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2557 MGMT_STATUS_INVALID_PARAMS);
2558
2559 /* Bluetooth single mode LE only controllers or dual-mode
2560 * controllers configured as LE only devices, do not allow
2561 * switching LE off. These have either LE enabled explicitly
2562 * or BR/EDR has been previously switched off.
2563 *
2564 * When trying to enable an already enabled LE, then gracefully
2565 * send a positive response. Trying to disable it however will
2566 * result into rejection.
2567 */
2568 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
2569 if (cp->val == 0x01)
2570 return send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
2571
2572 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2573 MGMT_STATUS_REJECTED);
2574 }
2575
2576 hci_dev_lock(hdev);
2577
2578 val = !!cp->val;
2579 enabled = lmp_host_le_capable(hdev);
2580
2581 if (!val)
2582 clear_adv_instance(hdev, NULL, 0x00, true);
2583
2584 if (!hdev_is_powered(hdev) || val == enabled) {
2585 bool changed = false;
2586
2587 if (val != hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
2588 hci_dev_change_flag(hdev, HCI_LE_ENABLED);
2589 changed = true;
2590 }
2591
2592 if (!val && hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
2593 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2594 changed = true;
2595 }
2596
2597 err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
2598 if (err < 0)
2599 goto unlock;
2600
2601 if (changed)
2602 err = new_settings(hdev, sk);
2603
2604 goto unlock;
2605 }
2606
2607 if (pending_find(MGMT_OP_SET_LE, hdev) ||
2608 pending_find(MGMT_OP_SET_ADVERTISING, hdev)) {
2609 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2610 MGMT_STATUS_BUSY);
2611 goto unlock;
2612 }
2613
2614 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len);
2615 if (!cmd) {
2616 err = -ENOMEM;
2617 goto unlock;
2618 }
2619
2620 hci_req_init(&req, hdev);
2621
2622 memset(&hci_cp, 0, sizeof(hci_cp));
2623
2624 if (val) {
2625 hci_cp.le = val;
2626 hci_cp.simul = 0x00;
2627 } else {
2628 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
2629 disable_advertising(&req);
2630 }
2631
2632 hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
2633 &hci_cp);
2634
2635 err = hci_req_run(&req, le_enable_complete);
2636 if (err < 0)
2637 mgmt_pending_remove(cmd);
2638
2639 unlock:
2640 hci_dev_unlock(hdev);
2641 return err;
2642 }
2643
2644 /* This is a helper function to test for pending mgmt commands that can
2645 * cause CoD or EIR HCI commands. We can only allow one such pending
2646 * mgmt command at a time since otherwise we cannot easily track what
2647 * the current values are, will be, and based on that calculate if a new
2648 * HCI command needs to be sent and if yes with what value.
2649 */
2650 static bool pending_eir_or_class(struct hci_dev *hdev)
2651 {
2652 struct mgmt_pending_cmd *cmd;
2653
2654 list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
2655 switch (cmd->opcode) {
2656 case MGMT_OP_ADD_UUID:
2657 case MGMT_OP_REMOVE_UUID:
2658 case MGMT_OP_SET_DEV_CLASS:
2659 case MGMT_OP_SET_POWERED:
2660 return true;
2661 }
2662 }
2663
2664 return false;
2665 }
2666
2667 static const u8 bluetooth_base_uuid[] = {
2668 0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
2669 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2670 };
2671
2672 static u8 get_uuid_size(const u8 *uuid)
2673 {
2674 u32 val;
2675
2676 if (memcmp(uuid, bluetooth_base_uuid, 12))
2677 return 128;
2678
2679 val = get_unaligned_le32(&uuid[12]);
2680 if (val > 0xffff)
2681 return 32;
2682
2683 return 16;
2684 }
2685
2686 static void mgmt_class_complete(struct hci_dev *hdev, u16 mgmt_op, u8 status)
2687 {
2688 struct mgmt_pending_cmd *cmd;
2689
2690 hci_dev_lock(hdev);
2691
2692 cmd = pending_find(mgmt_op, hdev);
2693 if (!cmd)
2694 goto unlock;
2695
2696 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
2697 mgmt_status(status), hdev->dev_class, 3);
2698
2699 mgmt_pending_remove(cmd);
2700
2701 unlock:
2702 hci_dev_unlock(hdev);
2703 }
2704
2705 static void add_uuid_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2706 {
2707 BT_DBG("status 0x%02x", status);
2708
2709 mgmt_class_complete(hdev, MGMT_OP_ADD_UUID, status);
2710 }
2711
2712 static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2713 {
2714 struct mgmt_cp_add_uuid *cp = data;
2715 struct mgmt_pending_cmd *cmd;
2716 struct hci_request req;
2717 struct bt_uuid *uuid;
2718 int err;
2719
2720 BT_DBG("request for %s", hdev->name);
2721
2722 hci_dev_lock(hdev);
2723
2724 if (pending_eir_or_class(hdev)) {
2725 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_UUID,
2726 MGMT_STATUS_BUSY);
2727 goto failed;
2728 }
2729
2730 uuid = kmalloc(sizeof(*uuid), GFP_KERNEL);
2731 if (!uuid) {
2732 err = -ENOMEM;
2733 goto failed;
2734 }
2735
2736 memcpy(uuid->uuid, cp->uuid, 16);
2737 uuid->svc_hint = cp->svc_hint;
2738 uuid->size = get_uuid_size(cp->uuid);
2739
2740 list_add_tail(&uuid->list, &hdev->uuids);
2741
2742 hci_req_init(&req, hdev);
2743
2744 update_class(&req);
2745 update_eir(&req);
2746
2747 err = hci_req_run(&req, add_uuid_complete);
2748 if (err < 0) {
2749 if (err != -ENODATA)
2750 goto failed;
2751
2752 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_UUID, 0,
2753 hdev->dev_class, 3);
2754 goto failed;
2755 }
2756
2757 cmd = mgmt_pending_add(sk, MGMT_OP_ADD_UUID, hdev, data, len);
2758 if (!cmd) {
2759 err = -ENOMEM;
2760 goto failed;
2761 }
2762
2763 err = 0;
2764
2765 failed:
2766 hci_dev_unlock(hdev);
2767 return err;
2768 }
2769
2770 static bool enable_service_cache(struct hci_dev *hdev)
2771 {
2772 if (!hdev_is_powered(hdev))
2773 return false;
2774
2775 if (!hci_dev_test_and_set_flag(hdev, HCI_SERVICE_CACHE)) {
2776 queue_delayed_work(hdev->workqueue, &hdev->service_cache,
2777 CACHE_TIMEOUT);
2778 return true;
2779 }
2780
2781 return false;
2782 }
2783
2784 static void remove_uuid_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2785 {
2786 BT_DBG("status 0x%02x", status);
2787
2788 mgmt_class_complete(hdev, MGMT_OP_REMOVE_UUID, status);
2789 }
2790
2791 static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
2792 u16 len)
2793 {
2794 struct mgmt_cp_remove_uuid *cp = data;
2795 struct mgmt_pending_cmd *cmd;
2796 struct bt_uuid *match, *tmp;
2797 u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
2798 struct hci_request req;
2799 int err, found;
2800
2801 BT_DBG("request for %s", hdev->name);
2802
2803 hci_dev_lock(hdev);
2804
2805 if (pending_eir_or_class(hdev)) {
2806 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
2807 MGMT_STATUS_BUSY);
2808 goto unlock;
2809 }
2810
2811 if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
2812 hci_uuids_clear(hdev);
2813
2814 if (enable_service_cache(hdev)) {
2815 err = mgmt_cmd_complete(sk, hdev->id,
2816 MGMT_OP_REMOVE_UUID,
2817 0, hdev->dev_class, 3);
2818 goto unlock;
2819 }
2820
2821 goto update_class;
2822 }
2823
2824 found = 0;
2825
2826 list_for_each_entry_safe(match, tmp, &hdev->uuids, list) {
2827 if (memcmp(match->uuid, cp->uuid, 16) != 0)
2828 continue;
2829
2830 list_del(&match->list);
2831 kfree(match);
2832 found++;
2833 }
2834
2835 if (found == 0) {
2836 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
2837 MGMT_STATUS_INVALID_PARAMS);
2838 goto unlock;
2839 }
2840
2841 update_class:
2842 hci_req_init(&req, hdev);
2843
2844 update_class(&req);
2845 update_eir(&req);
2846
2847 err = hci_req_run(&req, remove_uuid_complete);
2848 if (err < 0) {
2849 if (err != -ENODATA)
2850 goto unlock;
2851
2852 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 0,
2853 hdev->dev_class, 3);
2854 goto unlock;
2855 }
2856
2857 cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
2858 if (!cmd) {
2859 err = -ENOMEM;
2860 goto unlock;
2861 }
2862
2863 err = 0;
2864
2865 unlock:
2866 hci_dev_unlock(hdev);
2867 return err;
2868 }
2869
2870 static void set_class_complete(struct hci_dev *hdev, u8 status, u16 opcode)
2871 {
2872 BT_DBG("status 0x%02x", status);
2873
2874 mgmt_class_complete(hdev, MGMT_OP_SET_DEV_CLASS, status);
2875 }
2876
2877 static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
2878 u16 len)
2879 {
2880 struct mgmt_cp_set_dev_class *cp = data;
2881 struct mgmt_pending_cmd *cmd;
2882 struct hci_request req;
2883 int err;
2884
2885 BT_DBG("request for %s", hdev->name);
2886
2887 if (!lmp_bredr_capable(hdev))
2888 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2889 MGMT_STATUS_NOT_SUPPORTED);
2890
2891 hci_dev_lock(hdev);
2892
2893 if (pending_eir_or_class(hdev)) {
2894 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2895 MGMT_STATUS_BUSY);
2896 goto unlock;
2897 }
2898
2899 if ((cp->minor & 0x03) != 0 || (cp->major & 0xe0) != 0) {
2900 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2901 MGMT_STATUS_INVALID_PARAMS);
2902 goto unlock;
2903 }
2904
2905 hdev->major_class = cp->major;
2906 hdev->minor_class = cp->minor;
2907
2908 if (!hdev_is_powered(hdev)) {
2909 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
2910 hdev->dev_class, 3);
2911 goto unlock;
2912 }
2913
2914 hci_req_init(&req, hdev);
2915
2916 if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE)) {
2917 hci_dev_unlock(hdev);
2918 cancel_delayed_work_sync(&hdev->service_cache);
2919 hci_dev_lock(hdev);
2920 update_eir(&req);
2921 }
2922
2923 update_class(&req);
2924
2925 err = hci_req_run(&req, set_class_complete);
2926 if (err < 0) {
2927 if (err != -ENODATA)
2928 goto unlock;
2929
2930 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
2931 hdev->dev_class, 3);
2932 goto unlock;
2933 }
2934
2935 cmd = mgmt_pending_add(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
2936 if (!cmd) {
2937 err = -ENOMEM;
2938 goto unlock;
2939 }
2940
2941 err = 0;
2942
2943 unlock:
2944 hci_dev_unlock(hdev);
2945 return err;
2946 }
2947
2948 static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
2949 u16 len)
2950 {
2951 struct mgmt_cp_load_link_keys *cp = data;
2952 const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
2953 sizeof(struct mgmt_link_key_info));
2954 u16 key_count, expected_len;
2955 bool changed;
2956 int i;
2957
2958 BT_DBG("request for %s", hdev->name);
2959
2960 if (!lmp_bredr_capable(hdev))
2961 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2962 MGMT_STATUS_NOT_SUPPORTED);
2963
2964 key_count = __le16_to_cpu(cp->key_count);
2965 if (key_count > max_key_count) {
2966 BT_ERR("load_link_keys: too big key_count value %u",
2967 key_count);
2968 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2969 MGMT_STATUS_INVALID_PARAMS);
2970 }
2971
2972 expected_len = sizeof(*cp) + key_count *
2973 sizeof(struct mgmt_link_key_info);
2974 if (expected_len != len) {
2975 BT_ERR("load_link_keys: expected %u bytes, got %u bytes",
2976 expected_len, len);
2977 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2978 MGMT_STATUS_INVALID_PARAMS);
2979 }
2980
2981 if (cp->debug_keys != 0x00 && cp->debug_keys != 0x01)
2982 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2983 MGMT_STATUS_INVALID_PARAMS);
2984
2985 BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys,
2986 key_count);
2987
2988 for (i = 0; i < key_count; i++) {
2989 struct mgmt_link_key_info *key = &cp->keys[i];
2990
2991 if (key->addr.type != BDADDR_BREDR || key->type > 0x08)
2992 return mgmt_cmd_status(sk, hdev->id,
2993 MGMT_OP_LOAD_LINK_KEYS,
2994 MGMT_STATUS_INVALID_PARAMS);
2995 }
2996
2997 hci_dev_lock(hdev);
2998
2999 hci_link_keys_clear(hdev);
3000
3001 if (cp->debug_keys)
3002 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
3003 else
3004 changed = hci_dev_test_and_clear_flag(hdev,
3005 HCI_KEEP_DEBUG_KEYS);
3006
3007 if (changed)
3008 new_settings(hdev, NULL);
3009
3010 for (i = 0; i < key_count; i++) {
3011 struct mgmt_link_key_info *key = &cp->keys[i];
3012
3013 /* Always ignore debug keys and require a new pairing if
3014 * the user wants to use them.
3015 */
3016 if (key->type == HCI_LK_DEBUG_COMBINATION)
3017 continue;
3018
3019 hci_add_link_key(hdev, NULL, &key->addr.bdaddr, key->val,
3020 key->type, key->pin_len, NULL);
3021 }
3022
3023 mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 0, NULL, 0);
3024
3025 hci_dev_unlock(hdev);
3026
3027 return 0;
3028 }
3029
3030 static int device_unpaired(struct hci_dev *hdev, bdaddr_t *bdaddr,
3031 u8 addr_type, struct sock *skip_sk)
3032 {
3033 struct mgmt_ev_device_unpaired ev;
3034
3035 bacpy(&ev.addr.bdaddr, bdaddr);
3036 ev.addr.type = addr_type;
3037
3038 return mgmt_event(MGMT_EV_DEVICE_UNPAIRED, hdev, &ev, sizeof(ev),
3039 skip_sk);
3040 }
3041
3042 static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3043 u16 len)
3044 {
3045 struct mgmt_cp_unpair_device *cp = data;
3046 struct mgmt_rp_unpair_device rp;
3047 struct hci_cp_disconnect dc;
3048 struct mgmt_pending_cmd *cmd;
3049 struct hci_conn *conn;
3050 int err;
3051
3052 memset(&rp, 0, sizeof(rp));
3053 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3054 rp.addr.type = cp->addr.type;
3055
3056 if (!bdaddr_type_is_valid(cp->addr.type))
3057 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3058 MGMT_STATUS_INVALID_PARAMS,
3059 &rp, sizeof(rp));
3060
3061 if (cp->disconnect != 0x00 && cp->disconnect != 0x01)
3062 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3063 MGMT_STATUS_INVALID_PARAMS,
3064 &rp, sizeof(rp));
3065
3066 hci_dev_lock(hdev);
3067
3068 if (!hdev_is_powered(hdev)) {
3069 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3070 MGMT_STATUS_NOT_POWERED, &rp,
3071 sizeof(rp));
3072 goto unlock;
3073 }
3074
3075 if (cp->addr.type == BDADDR_BREDR) {
3076 /* If disconnection is requested, then look up the
3077 * connection. If the remote device is connected, it
3078 * will be later used to terminate the link.
3079 *
3080 * Setting it to NULL explicitly will cause no
3081 * termination of the link.
3082 */
3083 if (cp->disconnect)
3084 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
3085 &cp->addr.bdaddr);
3086 else
3087 conn = NULL;
3088
3089 err = hci_remove_link_key(hdev, &cp->addr.bdaddr);
3090 } else {
3091 u8 addr_type;
3092
3093 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK,
3094 &cp->addr.bdaddr);
3095 if (conn) {
3096 /* Defer clearing up the connection parameters
3097 * until closing to give a chance of keeping
3098 * them if a repairing happens.
3099 */
3100 set_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags);
3101
3102 /* If disconnection is not requested, then
3103 * clear the connection variable so that the
3104 * link is not terminated.
3105 */
3106 if (!cp->disconnect)
3107 conn = NULL;
3108 }
3109
3110 if (cp->addr.type == BDADDR_LE_PUBLIC)
3111 addr_type = ADDR_LE_DEV_PUBLIC;
3112 else
3113 addr_type = ADDR_LE_DEV_RANDOM;
3114
3115 hci_remove_irk(hdev, &cp->addr.bdaddr, addr_type);
3116
3117 err = hci_remove_ltk(hdev, &cp->addr.bdaddr, addr_type);
3118 }
3119
3120 if (err < 0) {
3121 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3122 MGMT_STATUS_NOT_PAIRED, &rp,
3123 sizeof(rp));
3124 goto unlock;
3125 }
3126
3127 /* If the connection variable is set, then termination of the
3128 * link is requested.
3129 */
3130 if (!conn) {
3131 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 0,
3132 &rp, sizeof(rp));
3133 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);
3134 goto unlock;
3135 }
3136
3137 cmd = mgmt_pending_add(sk, MGMT_OP_UNPAIR_DEVICE, hdev, cp,
3138 sizeof(*cp));
3139 if (!cmd) {
3140 err = -ENOMEM;
3141 goto unlock;
3142 }
3143
3144 cmd->cmd_complete = addr_cmd_complete;
3145
3146 dc.handle = cpu_to_le16(conn->handle);
3147 dc.reason = 0x13; /* Remote User Terminated Connection */
3148 err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
3149 if (err < 0)
3150 mgmt_pending_remove(cmd);
3151
3152 unlock:
3153 hci_dev_unlock(hdev);
3154 return err;
3155 }
3156
3157 static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data,
3158 u16 len)
3159 {
3160 struct mgmt_cp_disconnect *cp = data;
3161 struct mgmt_rp_disconnect rp;
3162 struct mgmt_pending_cmd *cmd;
3163 struct hci_conn *conn;
3164 int err;
3165
3166 BT_DBG("");
3167
3168 memset(&rp, 0, sizeof(rp));
3169 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3170 rp.addr.type = cp->addr.type;
3171
3172 if (!bdaddr_type_is_valid(cp->addr.type))
3173 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3174 MGMT_STATUS_INVALID_PARAMS,
3175 &rp, sizeof(rp));
3176
3177 hci_dev_lock(hdev);
3178
3179 if (!test_bit(HCI_UP, &hdev->flags)) {
3180 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3181 MGMT_STATUS_NOT_POWERED, &rp,
3182 sizeof(rp));
3183 goto failed;
3184 }
3185
3186 if (pending_find(MGMT_OP_DISCONNECT, hdev)) {
3187 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3188 MGMT_STATUS_BUSY, &rp, sizeof(rp));
3189 goto failed;
3190 }
3191
3192 if (cp->addr.type == BDADDR_BREDR)
3193 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
3194 &cp->addr.bdaddr);
3195 else
3196 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
3197
3198 if (!conn || conn->state == BT_OPEN || conn->state == BT_CLOSED) {
3199 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3200 MGMT_STATUS_NOT_CONNECTED, &rp,
3201 sizeof(rp));
3202 goto failed;
3203 }
3204
3205 cmd = mgmt_pending_add(sk, MGMT_OP_DISCONNECT, hdev, data, len);
3206 if (!cmd) {
3207 err = -ENOMEM;
3208 goto failed;
3209 }
3210
3211 cmd->cmd_complete = generic_cmd_complete;
3212
3213 err = hci_disconnect(conn, HCI_ERROR_REMOTE_USER_TERM);
3214 if (err < 0)
3215 mgmt_pending_remove(cmd);
3216
3217 failed:
3218 hci_dev_unlock(hdev);
3219 return err;
3220 }
3221
3222 static u8 link_to_bdaddr(u8 link_type, u8 addr_type)
3223 {
3224 switch (link_type) {
3225 case LE_LINK:
3226 switch (addr_type) {
3227 case ADDR_LE_DEV_PUBLIC:
3228 return BDADDR_LE_PUBLIC;
3229
3230 default:
3231 /* Fallback to LE Random address type */
3232 return BDADDR_LE_RANDOM;
3233 }
3234
3235 default:
3236 /* Fallback to BR/EDR type */
3237 return BDADDR_BREDR;
3238 }
3239 }
3240
3241 static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
3242 u16 data_len)
3243 {
3244 struct mgmt_rp_get_connections *rp;
3245 struct hci_conn *c;
3246 size_t rp_len;
3247 int err;
3248 u16 i;
3249
3250 BT_DBG("");
3251
3252 hci_dev_lock(hdev);
3253
3254 if (!hdev_is_powered(hdev)) {
3255 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_CONNECTIONS,
3256 MGMT_STATUS_NOT_POWERED);
3257 goto unlock;
3258 }
3259
3260 i = 0;
3261 list_for_each_entry(c, &hdev->conn_hash.list, list) {
3262 if (test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
3263 i++;
3264 }
3265
3266 rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
3267 rp = kmalloc(rp_len, GFP_KERNEL);
3268 if (!rp) {
3269 err = -ENOMEM;
3270 goto unlock;
3271 }
3272
3273 i = 0;
3274 list_for_each_entry(c, &hdev->conn_hash.list, list) {
3275 if (!test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
3276 continue;
3277 bacpy(&rp->addr[i].bdaddr, &c->dst);
3278 rp->addr[i].type = link_to_bdaddr(c->type, c->dst_type);
3279 if (c->type == SCO_LINK || c->type == ESCO_LINK)
3280 continue;
3281 i++;
3282 }
3283
3284 rp->conn_count = cpu_to_le16(i);
3285
3286 /* Recalculate length in case of filtered SCO connections, etc */
3287 rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
3288
3289 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp,
3290 rp_len);
3291
3292 kfree(rp);
3293
3294 unlock:
3295 hci_dev_unlock(hdev);
3296 return err;
3297 }
3298
3299 static int send_pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3300 struct mgmt_cp_pin_code_neg_reply *cp)
3301 {
3302 struct mgmt_pending_cmd *cmd;
3303 int err;
3304
3305 cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, hdev, cp,
3306 sizeof(*cp));
3307 if (!cmd)
3308 return -ENOMEM;
3309
3310 err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3311 sizeof(cp->addr.bdaddr), &cp->addr.bdaddr);
3312 if (err < 0)
3313 mgmt_pending_remove(cmd);
3314
3315 return err;
3316 }
3317
3318 static int pin_code_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3319 u16 len)
3320 {
3321 struct hci_conn *conn;
3322 struct mgmt_cp_pin_code_reply *cp = data;
3323 struct hci_cp_pin_code_reply reply;
3324 struct mgmt_pending_cmd *cmd;
3325 int err;
3326
3327 BT_DBG("");
3328
3329 hci_dev_lock(hdev);
3330
3331 if (!hdev_is_powered(hdev)) {
3332 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3333 MGMT_STATUS_NOT_POWERED);
3334 goto failed;
3335 }
3336
3337 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
3338 if (!conn) {
3339 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3340 MGMT_STATUS_NOT_CONNECTED);
3341 goto failed;
3342 }
3343
3344 if (conn->pending_sec_level == BT_SECURITY_HIGH && cp->pin_len != 16) {
3345 struct mgmt_cp_pin_code_neg_reply ncp;
3346
3347 memcpy(&ncp.addr, &cp->addr, sizeof(ncp.addr));
3348
3349 BT_ERR("PIN code is not 16 bytes long");
3350
3351 err = send_pin_code_neg_reply(sk, hdev, &ncp);
3352 if (err >= 0)
3353 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3354 MGMT_STATUS_INVALID_PARAMS);
3355
3356 goto failed;
3357 }
3358
3359 cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, hdev, data, len);
3360 if (!cmd) {
3361 err = -ENOMEM;
3362 goto failed;
3363 }
3364
3365 cmd->cmd_complete = addr_cmd_complete;
3366
3367 bacpy(&reply.bdaddr, &cp->addr.bdaddr);
3368 reply.pin_len = cp->pin_len;
3369 memcpy(reply.pin_code, cp->pin_code, sizeof(reply.pin_code));
3370
3371 err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
3372 if (err < 0)
3373 mgmt_pending_remove(cmd);
3374
3375 failed:
3376 hci_dev_unlock(hdev);
3377 return err;
3378 }
3379
3380 static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
3381 u16 len)
3382 {
3383 struct mgmt_cp_set_io_capability *cp = data;
3384
3385 BT_DBG("");
3386
3387 if (cp->io_capability > SMP_IO_KEYBOARD_DISPLAY)
3388 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY,
3389 MGMT_STATUS_INVALID_PARAMS, NULL, 0);
3390
3391 hci_dev_lock(hdev);
3392
3393 hdev->io_capability = cp->io_capability;
3394
3395 BT_DBG("%s IO capability set to 0x%02x", hdev->name,
3396 hdev->io_capability);
3397
3398 hci_dev_unlock(hdev);
3399
3400 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, 0,
3401 NULL, 0);
3402 }
3403
3404 static struct mgmt_pending_cmd *find_pairing(struct hci_conn *conn)
3405 {
3406 struct hci_dev *hdev = conn->hdev;
3407 struct mgmt_pending_cmd *cmd;
3408
3409 list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
3410 if (cmd->opcode != MGMT_OP_PAIR_DEVICE)
3411 continue;
3412
3413 if (cmd->user_data != conn)
3414 continue;
3415
3416 return cmd;
3417 }
3418
3419 return NULL;
3420 }
3421
3422 static int pairing_complete(struct mgmt_pending_cmd *cmd, u8 status)
3423 {
3424 struct mgmt_rp_pair_device rp;
3425 struct hci_conn *conn = cmd->user_data;
3426 int err;
3427
3428 bacpy(&rp.addr.bdaddr, &conn->dst);
3429 rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
3430
3431 err = mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE,
3432 status, &rp, sizeof(rp));
3433
3434 /* So we don't get further callbacks for this connection */
3435 conn->connect_cfm_cb = NULL;
3436 conn->security_cfm_cb = NULL;
3437 conn->disconn_cfm_cb = NULL;
3438
3439 hci_conn_drop(conn);
3440
3441 /* The device is paired so there is no need to remove
3442 * its connection parameters anymore.
3443 */
3444 clear_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags);
3445
3446 hci_conn_put(conn);
3447
3448 return err;
3449 }
3450
3451 void mgmt_smp_complete(struct hci_conn *conn, bool complete)
3452 {
3453 u8 status = complete ? MGMT_STATUS_SUCCESS : MGMT_STATUS_FAILED;
3454 struct mgmt_pending_cmd *cmd;
3455
3456 cmd = find_pairing(conn);
3457 if (cmd) {
3458 cmd->cmd_complete(cmd, status);
3459 mgmt_pending_remove(cmd);
3460 }
3461 }
3462
3463 static void pairing_complete_cb(struct hci_conn *conn, u8 status)
3464 {
3465 struct mgmt_pending_cmd *cmd;
3466
3467 BT_DBG("status %u", status);
3468
3469 cmd = find_pairing(conn);
3470 if (!cmd) {
3471 BT_DBG("Unable to find a pending command");
3472 return;
3473 }
3474
3475 cmd->cmd_complete(cmd, mgmt_status(status));
3476 mgmt_pending_remove(cmd);
3477 }
3478
3479 static void le_pairing_complete_cb(struct hci_conn *conn, u8 status)
3480 {
3481 struct mgmt_pending_cmd *cmd;
3482
3483 BT_DBG("status %u", status);
3484
3485 if (!status)
3486 return;
3487
3488 cmd = find_pairing(conn);
3489 if (!cmd) {
3490 BT_DBG("Unable to find a pending command");
3491 return;
3492 }
3493
3494 cmd->cmd_complete(cmd, mgmt_status(status));
3495 mgmt_pending_remove(cmd);
3496 }
3497
3498 static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3499 u16 len)
3500 {
3501 struct mgmt_cp_pair_device *cp = data;
3502 struct mgmt_rp_pair_device rp;
3503 struct mgmt_pending_cmd *cmd;
3504 u8 sec_level, auth_type;
3505 struct hci_conn *conn;
3506 int err;
3507
3508 BT_DBG("");
3509
3510 memset(&rp, 0, sizeof(rp));
3511 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3512 rp.addr.type = cp->addr.type;
3513
3514 if (!bdaddr_type_is_valid(cp->addr.type))
3515 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3516 MGMT_STATUS_INVALID_PARAMS,
3517 &rp, sizeof(rp));
3518
3519 if (cp->io_cap > SMP_IO_KEYBOARD_DISPLAY)
3520 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3521 MGMT_STATUS_INVALID_PARAMS,
3522 &rp, sizeof(rp));
3523
3524 hci_dev_lock(hdev);
3525
3526 if (!hdev_is_powered(hdev)) {
3527 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3528 MGMT_STATUS_NOT_POWERED, &rp,
3529 sizeof(rp));
3530 goto unlock;
3531 }
3532
3533 if (hci_bdaddr_is_paired(hdev, &cp->addr.bdaddr, cp->addr.type)) {
3534 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3535 MGMT_STATUS_ALREADY_PAIRED, &rp,
3536 sizeof(rp));
3537 goto unlock;
3538 }
3539
3540 sec_level = BT_SECURITY_MEDIUM;
3541 auth_type = HCI_AT_DEDICATED_BONDING;
3542
3543 if (cp->addr.type == BDADDR_BREDR) {
3544 conn = hci_connect_acl(hdev, &cp->addr.bdaddr, sec_level,
3545 auth_type);
3546 } else {
3547 u8 addr_type;
3548
3549 /* Convert from L2CAP channel address type to HCI address type
3550 */
3551 if (cp->addr.type == BDADDR_LE_PUBLIC)
3552 addr_type = ADDR_LE_DEV_PUBLIC;
3553 else
3554 addr_type = ADDR_LE_DEV_RANDOM;
3555
3556 /* When pairing a new device, it is expected to remember
3557 * this device for future connections. Adding the connection
3558 * parameter information ahead of time allows tracking
3559 * of the slave preferred values and will speed up any
3560 * further connection establishment.
3561 *
3562 * If connection parameters already exist, then they
3563 * will be kept and this function does nothing.
3564 */
3565 hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
3566
3567 conn = hci_connect_le_scan(hdev, &cp->addr.bdaddr,
3568 addr_type, sec_level,
3569 HCI_LE_CONN_TIMEOUT,
3570 HCI_ROLE_MASTER);
3571 }
3572
3573 if (IS_ERR(conn)) {
3574 int status;
3575
3576 if (PTR_ERR(conn) == -EBUSY)
3577 status = MGMT_STATUS_BUSY;
3578 else if (PTR_ERR(conn) == -EOPNOTSUPP)
3579 status = MGMT_STATUS_NOT_SUPPORTED;
3580 else if (PTR_ERR(conn) == -ECONNREFUSED)
3581 status = MGMT_STATUS_REJECTED;
3582 else
3583 status = MGMT_STATUS_CONNECT_FAILED;
3584
3585 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3586 status, &rp, sizeof(rp));
3587 goto unlock;
3588 }
3589
3590 if (conn->connect_cfm_cb) {
3591 hci_conn_drop(conn);
3592 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3593 MGMT_STATUS_BUSY, &rp, sizeof(rp));
3594 goto unlock;
3595 }
3596
3597 cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len);
3598 if (!cmd) {
3599 err = -ENOMEM;
3600 hci_conn_drop(conn);
3601 goto unlock;
3602 }
3603
3604 cmd->cmd_complete = pairing_complete;
3605
3606 /* For LE, just connecting isn't a proof that the pairing finished */
3607 if (cp->addr.type == BDADDR_BREDR) {
3608 conn->connect_cfm_cb = pairing_complete_cb;
3609 conn->security_cfm_cb = pairing_complete_cb;
3610 conn->disconn_cfm_cb = pairing_complete_cb;
3611 } else {
3612 conn->connect_cfm_cb = le_pairing_complete_cb;
3613 conn->security_cfm_cb = le_pairing_complete_cb;
3614 conn->disconn_cfm_cb = le_pairing_complete_cb;
3615 }
3616
3617 conn->io_capability = cp->io_cap;
3618 cmd->user_data = hci_conn_get(conn);
3619
3620 if ((conn->state == BT_CONNECTED || conn->state == BT_CONFIG) &&
3621 hci_conn_security(conn, sec_level, auth_type, true)) {
3622 cmd->cmd_complete(cmd, 0);
3623 mgmt_pending_remove(cmd);
3624 }
3625
3626 err = 0;
3627
3628 unlock:
3629 hci_dev_unlock(hdev);
3630 return err;
3631 }
3632
3633 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3634 u16 len)
3635 {
3636 struct mgmt_addr_info *addr = data;
3637 struct mgmt_pending_cmd *cmd;
3638 struct hci_conn *conn;
3639 int err;
3640
3641 BT_DBG("");
3642
3643 hci_dev_lock(hdev);
3644
3645 if (!hdev_is_powered(hdev)) {
3646 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3647 MGMT_STATUS_NOT_POWERED);
3648 goto unlock;
3649 }
3650
3651 cmd = pending_find(MGMT_OP_PAIR_DEVICE, hdev);
3652 if (!cmd) {
3653 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3654 MGMT_STATUS_INVALID_PARAMS);
3655 goto unlock;
3656 }
3657
3658 conn = cmd->user_data;
3659
3660 if (bacmp(&addr->bdaddr, &conn->dst) != 0) {
3661 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3662 MGMT_STATUS_INVALID_PARAMS);
3663 goto unlock;
3664 }
3665
3666 cmd->cmd_complete(cmd, MGMT_STATUS_CANCELLED);
3667 mgmt_pending_remove(cmd);
3668
3669 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0,
3670 addr, sizeof(*addr));
3671 unlock:
3672 hci_dev_unlock(hdev);
3673 return err;
3674 }
3675
3676 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
3677 struct mgmt_addr_info *addr, u16 mgmt_op,
3678 u16 hci_op, __le32 passkey)
3679 {
3680 struct mgmt_pending_cmd *cmd;
3681 struct hci_conn *conn;
3682 int err;
3683
3684 hci_dev_lock(hdev);
3685
3686 if (!hdev_is_powered(hdev)) {
3687 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3688 MGMT_STATUS_NOT_POWERED, addr,
3689 sizeof(*addr));
3690 goto done;
3691 }
3692
3693 if (addr->type == BDADDR_BREDR)
3694 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &addr->bdaddr);
3695 else
3696 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &addr->bdaddr);
3697
3698 if (!conn) {
3699 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3700 MGMT_STATUS_NOT_CONNECTED, addr,
3701 sizeof(*addr));
3702 goto done;
3703 }
3704
3705 if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
3706 err = smp_user_confirm_reply(conn, mgmt_op, passkey);
3707 if (!err)
3708 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3709 MGMT_STATUS_SUCCESS, addr,
3710 sizeof(*addr));
3711 else
3712 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3713 MGMT_STATUS_FAILED, addr,
3714 sizeof(*addr));
3715
3716 goto done;
3717 }
3718
3719 cmd = mgmt_pending_add(sk, mgmt_op, hdev, addr, sizeof(*addr));
3720 if (!cmd) {
3721 err = -ENOMEM;
3722 goto done;
3723 }
3724
3725 cmd->cmd_complete = addr_cmd_complete;
3726
3727 /* Continue with pairing via HCI */
3728 if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
3729 struct hci_cp_user_passkey_reply cp;
3730
3731 bacpy(&cp.bdaddr, &addr->bdaddr);
3732 cp.passkey = passkey;
3733 err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
3734 } else
3735 err = hci_send_cmd(hdev, hci_op, sizeof(addr->bdaddr),
3736 &addr->bdaddr);
3737
3738 if (err < 0)
3739 mgmt_pending_remove(cmd);
3740
3741 done:
3742 hci_dev_unlock(hdev);
3743 return err;
3744 }
3745
3746 static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3747 void *data, u16 len)
3748 {
3749 struct mgmt_cp_pin_code_neg_reply *cp = data;
3750
3751 BT_DBG("");
3752
3753 return user_pairing_resp(sk, hdev, &cp->addr,
3754 MGMT_OP_PIN_CODE_NEG_REPLY,
3755 HCI_OP_PIN_CODE_NEG_REPLY, 0);
3756 }
3757
3758 static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3759 u16 len)
3760 {
3761 struct mgmt_cp_user_confirm_reply *cp = data;
3762
3763 BT_DBG("");
3764
3765 if (len != sizeof(*cp))
3766 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
3767 MGMT_STATUS_INVALID_PARAMS);
3768
3769 return user_pairing_resp(sk, hdev, &cp->addr,
3770 MGMT_OP_USER_CONFIRM_REPLY,
3771 HCI_OP_USER_CONFIRM_REPLY, 0);
3772 }
3773
3774 static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
3775 void *data, u16 len)
3776 {
3777 struct mgmt_cp_user_confirm_neg_reply *cp = data;
3778
3779 BT_DBG("");
3780
3781 return user_pairing_resp(sk, hdev, &cp->addr,
3782 MGMT_OP_USER_CONFIRM_NEG_REPLY,
3783 HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
3784 }
3785
3786 static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3787 u16 len)
3788 {
3789 struct mgmt_cp_user_passkey_reply *cp = data;
3790
3791 BT_DBG("");
3792
3793 return user_pairing_resp(sk, hdev, &cp->addr,
3794 MGMT_OP_USER_PASSKEY_REPLY,
3795 HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
3796 }
3797
3798 static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
3799 void *data, u16 len)
3800 {
3801 struct mgmt_cp_user_passkey_neg_reply *cp = data;
3802
3803 BT_DBG("");
3804
3805 return user_pairing_resp(sk, hdev, &cp->addr,
3806 MGMT_OP_USER_PASSKEY_NEG_REPLY,
3807 HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
3808 }
3809
3810 static void update_name(struct hci_request *req)
3811 {
3812 struct hci_dev *hdev = req->hdev;
3813 struct hci_cp_write_local_name cp;
3814
3815 memcpy(cp.name, hdev->dev_name, sizeof(cp.name));
3816
3817 hci_req_add(req, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp);
3818 }
3819
3820 static void set_name_complete(struct hci_dev *hdev, u8 status, u16 opcode)
3821 {
3822 struct mgmt_cp_set_local_name *cp;
3823 struct mgmt_pending_cmd *cmd;
3824
3825 BT_DBG("status 0x%02x", status);
3826
3827 hci_dev_lock(hdev);
3828
3829 cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
3830 if (!cmd)
3831 goto unlock;
3832
3833 cp = cmd->param;
3834
3835 if (status)
3836 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
3837 mgmt_status(status));
3838 else
3839 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3840 cp, sizeof(*cp));
3841
3842 mgmt_pending_remove(cmd);
3843
3844 unlock:
3845 hci_dev_unlock(hdev);
3846 }
3847
3848 static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
3849 u16 len)
3850 {
3851 struct mgmt_cp_set_local_name *cp = data;
3852 struct mgmt_pending_cmd *cmd;
3853 struct hci_request req;
3854 int err;
3855
3856 BT_DBG("");
3857
3858 hci_dev_lock(hdev);
3859
3860 /* If the old values are the same as the new ones just return a
3861 * direct command complete event.
3862 */
3863 if (!memcmp(hdev->dev_name, cp->name, sizeof(hdev->dev_name)) &&
3864 !memcmp(hdev->short_name, cp->short_name,
3865 sizeof(hdev->short_name))) {
3866 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3867 data, len);
3868 goto failed;
3869 }
3870
3871 memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
3872
3873 if (!hdev_is_powered(hdev)) {
3874 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3875
3876 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3877 data, len);
3878 if (err < 0)
3879 goto failed;
3880
3881 err = mgmt_generic_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev,
3882 data, len, sk);
3883
3884 goto failed;
3885 }
3886
3887 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len);
3888 if (!cmd) {
3889 err = -ENOMEM;
3890 goto failed;
3891 }
3892
3893 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3894
3895 hci_req_init(&req, hdev);
3896
3897 if (lmp_bredr_capable(hdev)) {
3898 update_name(&req);
3899 update_eir(&req);
3900 }
3901
3902 /* The name is stored in the scan response data and so
3903 * no need to udpate the advertising data here.
3904 */
3905 if (lmp_le_capable(hdev))
3906 update_scan_rsp_data(&req);
3907
3908 err = hci_req_run(&req, set_name_complete);
3909 if (err < 0)
3910 mgmt_pending_remove(cmd);
3911
3912 failed:
3913 hci_dev_unlock(hdev);
3914 return err;
3915 }
3916
3917 static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status,
3918 u16 opcode, struct sk_buff *skb)
3919 {
3920 struct mgmt_rp_read_local_oob_data mgmt_rp;
3921 size_t rp_size = sizeof(mgmt_rp);
3922 struct mgmt_pending_cmd *cmd;
3923
3924 BT_DBG("%s status %u", hdev->name, status);
3925
3926 cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
3927 if (!cmd)
3928 return;
3929
3930 if (status || !skb) {
3931 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3932 status ? mgmt_status(status) : MGMT_STATUS_FAILED);
3933 goto remove;
3934 }
3935
3936 memset(&mgmt_rp, 0, sizeof(mgmt_rp));
3937
3938 if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
3939 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
3940
3941 if (skb->len < sizeof(*rp)) {
3942 mgmt_cmd_status(cmd->sk, hdev->id,
3943 MGMT_OP_READ_LOCAL_OOB_DATA,
3944 MGMT_STATUS_FAILED);
3945 goto remove;
3946 }
3947
3948 memcpy(mgmt_rp.hash192, rp->hash, sizeof(rp->hash));
3949 memcpy(mgmt_rp.rand192, rp->rand, sizeof(rp->rand));
3950
3951 rp_size -= sizeof(mgmt_rp.hash256) + sizeof(mgmt_rp.rand256);
3952 } else {
3953 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
3954
3955 if (skb->len < sizeof(*rp)) {
3956 mgmt_cmd_status(cmd->sk, hdev->id,
3957 MGMT_OP_READ_LOCAL_OOB_DATA,
3958 MGMT_STATUS_FAILED);
3959 goto remove;
3960 }
3961
3962 memcpy(mgmt_rp.hash192, rp->hash192, sizeof(rp->hash192));
3963 memcpy(mgmt_rp.rand192, rp->rand192, sizeof(rp->rand192));
3964
3965 memcpy(mgmt_rp.hash256, rp->hash256, sizeof(rp->hash256));
3966 memcpy(mgmt_rp.rand256, rp->rand256, sizeof(rp->rand256));
3967 }
3968
3969 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3970 MGMT_STATUS_SUCCESS, &mgmt_rp, rp_size);
3971
3972 remove:
3973 mgmt_pending_remove(cmd);
3974 }
3975
3976 static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
3977 void *data, u16 data_len)
3978 {
3979 struct mgmt_pending_cmd *cmd;
3980 struct hci_request req;
3981 int err;
3982
3983 BT_DBG("%s", hdev->name);
3984
3985 hci_dev_lock(hdev);
3986
3987 if (!hdev_is_powered(hdev)) {
3988 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3989 MGMT_STATUS_NOT_POWERED);
3990 goto unlock;
3991 }
3992
3993 if (!lmp_ssp_capable(hdev)) {
3994 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3995 MGMT_STATUS_NOT_SUPPORTED);
3996 goto unlock;
3997 }
3998
3999 if (pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
4000 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
4001 MGMT_STATUS_BUSY);
4002 goto unlock;
4003 }
4004
4005 cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
4006 if (!cmd) {
4007 err = -ENOMEM;
4008 goto unlock;
4009 }
4010
4011 hci_req_init(&req, hdev);
4012
4013 if (bredr_sc_enabled(hdev))
4014 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
4015 else
4016 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
4017
4018 err = hci_req_run_skb(&req, read_local_oob_data_complete);
4019 if (err < 0)
4020 mgmt_pending_remove(cmd);
4021
4022 unlock:
4023 hci_dev_unlock(hdev);
4024 return err;
4025 }
4026
4027 static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
4028 void *data, u16 len)
4029 {
4030 struct mgmt_addr_info *addr = data;
4031 int err;
4032
4033 BT_DBG("%s ", hdev->name);
4034
4035 if (!bdaddr_type_is_valid(addr->type))
4036 return mgmt_cmd_complete(sk, hdev->id,
4037 MGMT_OP_ADD_REMOTE_OOB_DATA,
4038 MGMT_STATUS_INVALID_PARAMS,
4039 addr, sizeof(*addr));
4040
4041 hci_dev_lock(hdev);
4042
4043 if (len == MGMT_ADD_REMOTE_OOB_DATA_SIZE) {
4044 struct mgmt_cp_add_remote_oob_data *cp = data;
4045 u8 status;
4046
4047 if (cp->addr.type != BDADDR_BREDR) {
4048 err = mgmt_cmd_complete(sk, hdev->id,
4049 MGMT_OP_ADD_REMOTE_OOB_DATA,
4050 MGMT_STATUS_INVALID_PARAMS,
4051 &cp->addr, sizeof(cp->addr));
4052 goto unlock;
4053 }
4054
4055 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
4056 cp->addr.type, cp->hash,
4057 cp->rand, NULL, NULL);
4058 if (err < 0)
4059 status = MGMT_STATUS_FAILED;
4060 else
4061 status = MGMT_STATUS_SUCCESS;
4062
4063 err = mgmt_cmd_complete(sk, hdev->id,
4064 MGMT_OP_ADD_REMOTE_OOB_DATA, status,
4065 &cp->addr, sizeof(cp->addr));
4066 } else if (len == MGMT_ADD_REMOTE_OOB_EXT_DATA_SIZE) {
4067 struct mgmt_cp_add_remote_oob_ext_data *cp = data;
4068 u8 *rand192, *hash192, *rand256, *hash256;
4069 u8 status;
4070
4071 if (bdaddr_type_is_le(cp->addr.type)) {
4072 /* Enforce zero-valued 192-bit parameters as
4073 * long as legacy SMP OOB isn't implemented.
4074 */
4075 if (memcmp(cp->rand192, ZERO_KEY, 16) ||
4076 memcmp(cp->hash192, ZERO_KEY, 16)) {
4077 err = mgmt_cmd_complete(sk, hdev->id,
4078 MGMT_OP_ADD_REMOTE_OOB_DATA,
4079 MGMT_STATUS_INVALID_PARAMS,
4080 addr, sizeof(*addr));
4081 goto unlock;
4082 }
4083
4084 rand192 = NULL;
4085 hash192 = NULL;
4086 } else {
4087 /* In case one of the P-192 values is set to zero,
4088 * then just disable OOB data for P-192.
4089 */
4090 if (!memcmp(cp->rand192, ZERO_KEY, 16) ||
4091 !memcmp(cp->hash192, ZERO_KEY, 16)) {
4092 rand192 = NULL;
4093 hash192 = NULL;
4094 } else {
4095 rand192 = cp->rand192;
4096 hash192 = cp->hash192;
4097 }
4098 }
4099
4100 /* In case one of the P-256 values is set to zero, then just
4101 * disable OOB data for P-256.
4102 */
4103 if (!memcmp(cp->rand256, ZERO_KEY, 16) ||
4104 !memcmp(cp->hash256, ZERO_KEY, 16)) {
4105 rand256 = NULL;
4106 hash256 = NULL;
4107 } else {
4108 rand256 = cp->rand256;
4109 hash256 = cp->hash256;
4110 }
4111
4112 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
4113 cp->addr.type, hash192, rand192,
4114 hash256, rand256);
4115 if (err < 0)
4116 status = MGMT_STATUS_FAILED;
4117 else
4118 status = MGMT_STATUS_SUCCESS;
4119
4120 err = mgmt_cmd_complete(sk, hdev->id,
4121 MGMT_OP_ADD_REMOTE_OOB_DATA,
4122 status, &cp->addr, sizeof(cp->addr));
4123 } else {
4124 BT_ERR("add_remote_oob_data: invalid length of %u bytes", len);
4125 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA,
4126 MGMT_STATUS_INVALID_PARAMS);
4127 }
4128
4129 unlock:
4130 hci_dev_unlock(hdev);
4131 return err;
4132 }
4133
4134 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
4135 void *data, u16 len)
4136 {
4137 struct mgmt_cp_remove_remote_oob_data *cp = data;
4138 u8 status;
4139 int err;
4140
4141 BT_DBG("%s", hdev->name);
4142
4143 if (cp->addr.type != BDADDR_BREDR)
4144 return mgmt_cmd_complete(sk, hdev->id,
4145 MGMT_OP_REMOVE_REMOTE_OOB_DATA,
4146 MGMT_STATUS_INVALID_PARAMS,
4147 &cp->addr, sizeof(cp->addr));
4148
4149 hci_dev_lock(hdev);
4150
4151 if (!bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
4152 hci_remote_oob_data_clear(hdev);
4153 status = MGMT_STATUS_SUCCESS;
4154 goto done;
4155 }
4156
4157 err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr, cp->addr.type);
4158 if (err < 0)
4159 status = MGMT_STATUS_INVALID_PARAMS;
4160 else
4161 status = MGMT_STATUS_SUCCESS;
4162
4163 done:
4164 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
4165 status, &cp->addr, sizeof(cp->addr));
4166
4167 hci_dev_unlock(hdev);
4168 return err;
4169 }
4170
4171 static bool trigger_bredr_inquiry(struct hci_request *req, u8 *status)
4172 {
4173 struct hci_dev *hdev = req->hdev;
4174 struct hci_cp_inquiry cp;
4175 /* General inquiry access code (GIAC) */
4176 u8 lap[3] = { 0x33, 0x8b, 0x9e };
4177
4178 *status = mgmt_bredr_support(hdev);
4179 if (*status)
4180 return false;
4181
4182 if (hci_dev_test_flag(hdev, HCI_INQUIRY)) {
4183 *status = MGMT_STATUS_BUSY;
4184 return false;
4185 }
4186
4187 hci_inquiry_cache_flush(hdev);
4188
4189 memset(&cp, 0, sizeof(cp));
4190 memcpy(&cp.lap, lap, sizeof(cp.lap));
4191 cp.length = DISCOV_BREDR_INQUIRY_LEN;
4192
4193 hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp);
4194
4195 return true;
4196 }
4197
4198 static bool trigger_le_scan(struct hci_request *req, u16 interval, u8 *status)
4199 {
4200 struct hci_dev *hdev = req->hdev;
4201 struct hci_cp_le_set_scan_param param_cp;
4202 struct hci_cp_le_set_scan_enable enable_cp;
4203 u8 own_addr_type;
4204 int err;
4205
4206 *status = mgmt_le_support(hdev);
4207 if (*status)
4208 return false;
4209
4210 if (hci_dev_test_flag(hdev, HCI_LE_ADV)) {
4211 /* Don't let discovery abort an outgoing connection attempt
4212 * that's using directed advertising.
4213 */
4214 if (hci_lookup_le_connect(hdev)) {
4215 *status = MGMT_STATUS_REJECTED;
4216 return false;
4217 }
4218
4219 cancel_adv_timeout(hdev);
4220 disable_advertising(req);
4221 }
4222
4223 /* If controller is scanning, it means the background scanning is
4224 * running. Thus, we should temporarily stop it in order to set the
4225 * discovery scanning parameters.
4226 */
4227 if (hci_dev_test_flag(hdev, HCI_LE_SCAN))
4228 hci_req_add_le_scan_disable(req);
4229
4230 /* All active scans will be done with either a resolvable private
4231 * address (when privacy feature has been enabled) or non-resolvable
4232 * private address.
4233 */
4234 err = hci_update_random_address(req, true, &own_addr_type);
4235 if (err < 0) {
4236 *status = MGMT_STATUS_FAILED;
4237 return false;
4238 }
4239
4240 memset(&param_cp, 0, sizeof(param_cp));
4241 param_cp.type = LE_SCAN_ACTIVE;
4242 param_cp.interval = cpu_to_le16(interval);
4243 param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN);
4244 param_cp.own_address_type = own_addr_type;
4245
4246 hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
4247 &param_cp);
4248
4249 memset(&enable_cp, 0, sizeof(enable_cp));
4250 enable_cp.enable = LE_SCAN_ENABLE;
4251 enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
4252
4253 hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp),
4254 &enable_cp);
4255
4256 return true;
4257 }
4258
4259 static bool trigger_discovery(struct hci_request *req, u8 *status)
4260 {
4261 struct hci_dev *hdev = req->hdev;
4262
4263 switch (hdev->discovery.type) {
4264 case DISCOV_TYPE_BREDR:
4265 if (!trigger_bredr_inquiry(req, status))
4266 return false;
4267 break;
4268
4269 case DISCOV_TYPE_INTERLEAVED:
4270 if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY,
4271 &hdev->quirks)) {
4272 /* During simultaneous discovery, we double LE scan
4273 * interval. We must leave some time for the controller
4274 * to do BR/EDR inquiry.
4275 */
4276 if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT * 2,
4277 status))
4278 return false;
4279
4280 if (!trigger_bredr_inquiry(req, status))
4281 return false;
4282
4283 return true;
4284 }
4285
4286 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
4287 *status = MGMT_STATUS_NOT_SUPPORTED;
4288 return false;
4289 }
4290 /* fall through */
4291
4292 case DISCOV_TYPE_LE:
4293 if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT, status))
4294 return false;
4295 break;
4296
4297 default:
4298 *status = MGMT_STATUS_INVALID_PARAMS;
4299 return false;
4300 }
4301
4302 return true;
4303 }
4304
4305 static void start_discovery_complete(struct hci_dev *hdev, u8 status,
4306 u16 opcode)
4307 {
4308 struct mgmt_pending_cmd *cmd;
4309 unsigned long timeout;
4310
4311 BT_DBG("status %d", status);
4312
4313 hci_dev_lock(hdev);
4314
4315 cmd = pending_find(MGMT_OP_START_DISCOVERY, hdev);
4316 if (!cmd)
4317 cmd = pending_find(MGMT_OP_START_SERVICE_DISCOVERY, hdev);
4318
4319 if (cmd) {
4320 cmd->cmd_complete(cmd, mgmt_status(status));
4321 mgmt_pending_remove(cmd);
4322 }
4323
4324 if (status) {
4325 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4326 goto unlock;
4327 }
4328
4329 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
4330
4331 /* If the scan involves LE scan, pick proper timeout to schedule
4332 * hdev->le_scan_disable that will stop it.
4333 */
4334 switch (hdev->discovery.type) {
4335 case DISCOV_TYPE_LE:
4336 timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT);
4337 break;
4338 case DISCOV_TYPE_INTERLEAVED:
4339 /* When running simultaneous discovery, the LE scanning time
4340 * should occupy the whole discovery time sine BR/EDR inquiry
4341 * and LE scanning are scheduled by the controller.
4342 *
4343 * For interleaving discovery in comparison, BR/EDR inquiry
4344 * and LE scanning are done sequentially with separate
4345 * timeouts.
4346 */
4347 if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
4348 timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT);
4349 else
4350 timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout);
4351 break;
4352 case DISCOV_TYPE_BREDR:
4353 timeout = 0;
4354 break;
4355 default:
4356 BT_ERR("Invalid discovery type %d", hdev->discovery.type);
4357 timeout = 0;
4358 break;
4359 }
4360
4361 if (timeout) {
4362 /* When service discovery is used and the controller has
4363 * a strict duplicate filter, it is important to remember
4364 * the start and duration of the scan. This is required
4365 * for restarting scanning during the discovery phase.
4366 */
4367 if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER,
4368 &hdev->quirks) &&
4369 hdev->discovery.result_filtering) {
4370 hdev->discovery.scan_start = jiffies;
4371 hdev->discovery.scan_duration = timeout;
4372 }
4373
4374 queue_delayed_work(hdev->workqueue,
4375 &hdev->le_scan_disable, timeout);
4376 }
4377
4378 unlock:
4379 hci_dev_unlock(hdev);
4380 }
4381
4382 static int start_discovery(struct sock *sk, struct hci_dev *hdev,
4383 void *data, u16 len)
4384 {
4385 struct mgmt_cp_start_discovery *cp = data;
4386 struct mgmt_pending_cmd *cmd;
4387 struct hci_request req;
4388 u8 status;
4389 int err;
4390
4391 BT_DBG("%s", hdev->name);
4392
4393 hci_dev_lock(hdev);
4394
4395 if (!hdev_is_powered(hdev)) {
4396 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4397 MGMT_STATUS_NOT_POWERED,
4398 &cp->type, sizeof(cp->type));
4399 goto failed;
4400 }
4401
4402 if (hdev->discovery.state != DISCOVERY_STOPPED ||
4403 hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
4404 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4405 MGMT_STATUS_BUSY, &cp->type,
4406 sizeof(cp->type));
4407 goto failed;
4408 }
4409
4410 cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, data, len);
4411 if (!cmd) {
4412 err = -ENOMEM;
4413 goto failed;
4414 }
4415
4416 cmd->cmd_complete = generic_cmd_complete;
4417
4418 /* Clear the discovery filter first to free any previously
4419 * allocated memory for the UUID list.
4420 */
4421 hci_discovery_filter_clear(hdev);
4422
4423 hdev->discovery.type = cp->type;
4424 hdev->discovery.report_invalid_rssi = false;
4425
4426 hci_req_init(&req, hdev);
4427
4428 if (!trigger_discovery(&req, &status)) {
4429 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4430 status, &cp->type, sizeof(cp->type));
4431 mgmt_pending_remove(cmd);
4432 goto failed;
4433 }
4434
4435 err = hci_req_run(&req, start_discovery_complete);
4436 if (err < 0) {
4437 mgmt_pending_remove(cmd);
4438 goto failed;
4439 }
4440
4441 hci_discovery_set_state(hdev, DISCOVERY_STARTING);
4442
4443 failed:
4444 hci_dev_unlock(hdev);
4445 return err;
4446 }
4447
4448 static int service_discovery_cmd_complete(struct mgmt_pending_cmd *cmd,
4449 u8 status)
4450 {
4451 return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
4452 cmd->param, 1);
4453 }
4454
4455 static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
4456 void *data, u16 len)
4457 {
4458 struct mgmt_cp_start_service_discovery *cp = data;
4459 struct mgmt_pending_cmd *cmd;
4460 struct hci_request req;
4461 const u16 max_uuid_count = ((U16_MAX - sizeof(*cp)) / 16);
4462 u16 uuid_count, expected_len;
4463 u8 status;
4464 int err;
4465
4466 BT_DBG("%s", hdev->name);
4467
4468 hci_dev_lock(hdev);
4469
4470 if (!hdev_is_powered(hdev)) {
4471 err = mgmt_cmd_complete(sk, hdev->id,
4472 MGMT_OP_START_SERVICE_DISCOVERY,
4473 MGMT_STATUS_NOT_POWERED,
4474 &cp->type, sizeof(cp->type));
4475 goto failed;
4476 }
4477
4478 if (hdev->discovery.state != DISCOVERY_STOPPED ||
4479 hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
4480 err = mgmt_cmd_complete(sk, hdev->id,
4481 MGMT_OP_START_SERVICE_DISCOVERY,
4482 MGMT_STATUS_BUSY, &cp->type,
4483 sizeof(cp->type));
4484 goto failed;
4485 }
4486
4487 uuid_count = __le16_to_cpu(cp->uuid_count);
4488 if (uuid_count > max_uuid_count) {
4489 BT_ERR("service_discovery: too big uuid_count value %u",
4490 uuid_count);
4491 err = mgmt_cmd_complete(sk, hdev->id,
4492 MGMT_OP_START_SERVICE_DISCOVERY,
4493 MGMT_STATUS_INVALID_PARAMS, &cp->type,
4494 sizeof(cp->type));
4495 goto failed;
4496 }
4497
4498 expected_len = sizeof(*cp) + uuid_count * 16;
4499 if (expected_len != len) {
4500 BT_ERR("service_discovery: expected %u bytes, got %u bytes",
4501 expected_len, len);
4502 err = mgmt_cmd_complete(sk, hdev->id,
4503 MGMT_OP_START_SERVICE_DISCOVERY,
4504 MGMT_STATUS_INVALID_PARAMS, &cp->type,
4505 sizeof(cp->type));
4506 goto failed;
4507 }
4508
4509 cmd = mgmt_pending_add(sk, MGMT_OP_START_SERVICE_DISCOVERY,
4510 hdev, data, len);
4511 if (!cmd) {
4512 err = -ENOMEM;
4513 goto failed;
4514 }
4515
4516 cmd->cmd_complete = service_discovery_cmd_complete;
4517
4518 /* Clear the discovery filter first to free any previously
4519 * allocated memory for the UUID list.
4520 */
4521 hci_discovery_filter_clear(hdev);
4522
4523 hdev->discovery.result_filtering = true;
4524 hdev->discovery.type = cp->type;
4525 hdev->discovery.rssi = cp->rssi;
4526 hdev->discovery.uuid_count = uuid_count;
4527
4528 if (uuid_count > 0) {
4529 hdev->discovery.uuids = kmemdup(cp->uuids, uuid_count * 16,
4530 GFP_KERNEL);
4531 if (!hdev->discovery.uuids) {
4532 err = mgmt_cmd_complete(sk, hdev->id,
4533 MGMT_OP_START_SERVICE_DISCOVERY,
4534 MGMT_STATUS_FAILED,
4535 &cp->type, sizeof(cp->type));
4536 mgmt_pending_remove(cmd);
4537 goto failed;
4538 }
4539 }
4540
4541 hci_req_init(&req, hdev);
4542
4543 if (!trigger_discovery(&req, &status)) {
4544 err = mgmt_cmd_complete(sk, hdev->id,
4545 MGMT_OP_START_SERVICE_DISCOVERY,
4546 status, &cp->type, sizeof(cp->type));
4547 mgmt_pending_remove(cmd);
4548 goto failed;
4549 }
4550
4551 err = hci_req_run(&req, start_discovery_complete);
4552 if (err < 0) {
4553 mgmt_pending_remove(cmd);
4554 goto failed;
4555 }
4556
4557 hci_discovery_set_state(hdev, DISCOVERY_STARTING);
4558
4559 failed:
4560 hci_dev_unlock(hdev);
4561 return err;
4562 }
4563
4564 static void stop_discovery_complete(struct hci_dev *hdev, u8 status, u16 opcode)
4565 {
4566 struct mgmt_pending_cmd *cmd;
4567
4568 BT_DBG("status %d", status);
4569
4570 hci_dev_lock(hdev);
4571
4572 cmd = pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
4573 if (cmd) {
4574 cmd->cmd_complete(cmd, mgmt_status(status));
4575 mgmt_pending_remove(cmd);
4576 }
4577
4578 if (!status)
4579 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4580
4581 hci_dev_unlock(hdev);
4582 }
4583
4584 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
4585 u16 len)
4586 {
4587 struct mgmt_cp_stop_discovery *mgmt_cp = data;
4588 struct mgmt_pending_cmd *cmd;
4589 struct hci_request req;
4590 int err;
4591
4592 BT_DBG("%s", hdev->name);
4593
4594 hci_dev_lock(hdev);
4595
4596 if (!hci_discovery_active(hdev)) {
4597 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
4598 MGMT_STATUS_REJECTED, &mgmt_cp->type,
4599 sizeof(mgmt_cp->type));
4600 goto unlock;
4601 }
4602
4603 if (hdev->discovery.type != mgmt_cp->type) {
4604 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
4605 MGMT_STATUS_INVALID_PARAMS,
4606 &mgmt_cp->type, sizeof(mgmt_cp->type));
4607 goto unlock;
4608 }
4609
4610 cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
4611 if (!cmd) {
4612 err = -ENOMEM;
4613 goto unlock;
4614 }
4615
4616 cmd->cmd_complete = generic_cmd_complete;
4617
4618 hci_req_init(&req, hdev);
4619
4620 hci_stop_discovery(&req);
4621
4622 err = hci_req_run(&req, stop_discovery_complete);
4623 if (!err) {
4624 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
4625 goto unlock;
4626 }
4627
4628 mgmt_pending_remove(cmd);
4629
4630 /* If no HCI commands were sent we're done */
4631 if (err == -ENODATA) {
4632 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 0,
4633 &mgmt_cp->type, sizeof(mgmt_cp->type));
4634 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4635 }
4636
4637 unlock:
4638 hci_dev_unlock(hdev);
4639 return err;
4640 }
4641
4642 static int confirm_name(struct sock *sk, struct hci_dev *hdev, void *data,
4643 u16 len)
4644 {
4645 struct mgmt_cp_confirm_name *cp = data;
4646 struct inquiry_entry *e;
4647 int err;
4648
4649 BT_DBG("%s", hdev->name);
4650
4651 hci_dev_lock(hdev);
4652
4653 if (!hci_discovery_active(hdev)) {
4654 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
4655 MGMT_STATUS_FAILED, &cp->addr,
4656 sizeof(cp->addr));
4657 goto failed;
4658 }
4659
4660 e = hci_inquiry_cache_lookup_unknown(hdev, &cp->addr.bdaddr);
4661 if (!e) {
4662 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
4663 MGMT_STATUS_INVALID_PARAMS, &cp->addr,
4664 sizeof(cp->addr));
4665 goto failed;
4666 }
4667
4668 if (cp->name_known) {
4669 e->name_state = NAME_KNOWN;
4670 list_del(&e->list);
4671 } else {
4672 e->name_state = NAME_NEEDED;
4673 hci_inquiry_cache_update_resolve(hdev, e);
4674 }
4675
4676 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME, 0,
4677 &cp->addr, sizeof(cp->addr));
4678
4679 failed:
4680 hci_dev_unlock(hdev);
4681 return err;
4682 }
4683
4684 static int block_device(struct sock *sk, struct hci_dev *hdev, void *data,
4685 u16 len)
4686 {
4687 struct mgmt_cp_block_device *cp = data;
4688 u8 status;
4689 int err;
4690
4691 BT_DBG("%s", hdev->name);
4692
4693 if (!bdaddr_type_is_valid(cp->addr.type))
4694 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE,
4695 MGMT_STATUS_INVALID_PARAMS,
4696 &cp->addr, sizeof(cp->addr));
4697
4698 hci_dev_lock(hdev);
4699
4700 err = hci_bdaddr_list_add(&hdev->blacklist, &cp->addr.bdaddr,
4701 cp->addr.type);
4702 if (err < 0) {
4703 status = MGMT_STATUS_FAILED;
4704 goto done;
4705 }
4706
4707 mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &cp->addr, sizeof(cp->addr),
4708 sk);
4709 status = MGMT_STATUS_SUCCESS;
4710
4711 done:
4712 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status,
4713 &cp->addr, sizeof(cp->addr));
4714
4715 hci_dev_unlock(hdev);
4716
4717 return err;
4718 }
4719
4720 static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data,
4721 u16 len)
4722 {
4723 struct mgmt_cp_unblock_device *cp = data;
4724 u8 status;
4725 int err;
4726
4727 BT_DBG("%s", hdev->name);
4728
4729 if (!bdaddr_type_is_valid(cp->addr.type))
4730 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE,
4731 MGMT_STATUS_INVALID_PARAMS,
4732 &cp->addr, sizeof(cp->addr));
4733
4734 hci_dev_lock(hdev);
4735
4736 err = hci_bdaddr_list_del(&hdev->blacklist, &cp->addr.bdaddr,
4737 cp->addr.type);
4738 if (err < 0) {
4739 status = MGMT_STATUS_INVALID_PARAMS;
4740 goto done;
4741 }
4742
4743 mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &cp->addr, sizeof(cp->addr),
4744 sk);
4745 status = MGMT_STATUS_SUCCESS;
4746
4747 done:
4748 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status,
4749 &cp->addr, sizeof(cp->addr));
4750
4751 hci_dev_unlock(hdev);
4752
4753 return err;
4754 }
4755
4756 static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
4757 u16 len)
4758 {
4759 struct mgmt_cp_set_device_id *cp = data;
4760 struct hci_request req;
4761 int err;
4762 __u16 source;
4763
4764 BT_DBG("%s", hdev->name);
4765
4766 source = __le16_to_cpu(cp->source);
4767
4768 if (source > 0x0002)
4769 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEVICE_ID,
4770 MGMT_STATUS_INVALID_PARAMS);
4771
4772 hci_dev_lock(hdev);
4773
4774 hdev->devid_source = source;
4775 hdev->devid_vendor = __le16_to_cpu(cp->vendor);
4776 hdev->devid_product = __le16_to_cpu(cp->product);
4777 hdev->devid_version = __le16_to_cpu(cp->version);
4778
4779 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 0,
4780 NULL, 0);
4781
4782 hci_req_init(&req, hdev);
4783 update_eir(&req);
4784 hci_req_run(&req, NULL);
4785
4786 hci_dev_unlock(hdev);
4787
4788 return err;
4789 }
4790
4791 static void enable_advertising_instance(struct hci_dev *hdev, u8 status,
4792 u16 opcode)
4793 {
4794 BT_DBG("status %d", status);
4795 }
4796
4797 static void set_advertising_complete(struct hci_dev *hdev, u8 status,
4798 u16 opcode)
4799 {
4800 struct cmd_lookup match = { NULL, hdev };
4801 struct hci_request req;
4802 u8 instance;
4803 struct adv_info *adv_instance;
4804 int err;
4805
4806 hci_dev_lock(hdev);
4807
4808 if (status) {
4809 u8 mgmt_err = mgmt_status(status);
4810
4811 mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev,
4812 cmd_status_rsp, &mgmt_err);
4813 goto unlock;
4814 }
4815
4816 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
4817 hci_dev_set_flag(hdev, HCI_ADVERTISING);
4818 else
4819 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
4820
4821 mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev, settings_rsp,
4822 &match);
4823
4824 new_settings(hdev, match.sk);
4825
4826 if (match.sk)
4827 sock_put(match.sk);
4828
4829 /* If "Set Advertising" was just disabled and instance advertising was
4830 * set up earlier, then re-enable multi-instance advertising.
4831 */
4832 if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
4833 !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) ||
4834 list_empty(&hdev->adv_instances))
4835 goto unlock;
4836
4837 instance = hdev->cur_adv_instance;
4838 if (!instance) {
4839 adv_instance = list_first_entry_or_null(&hdev->adv_instances,
4840 struct adv_info, list);
4841 if (!adv_instance)
4842 goto unlock;
4843
4844 instance = adv_instance->instance;
4845 }
4846
4847 hci_req_init(&req, hdev);
4848
4849 err = schedule_adv_instance(&req, instance, true);
4850
4851 if (!err)
4852 err = hci_req_run(&req, enable_advertising_instance);
4853
4854 if (err)
4855 BT_ERR("Failed to re-configure advertising");
4856
4857 unlock:
4858 hci_dev_unlock(hdev);
4859 }
4860
4861 static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
4862 u16 len)
4863 {
4864 struct mgmt_mode *cp = data;
4865 struct mgmt_pending_cmd *cmd;
4866 struct hci_request req;
4867 u8 val, status;
4868 int err;
4869
4870 BT_DBG("request for %s", hdev->name);
4871
4872 status = mgmt_le_support(hdev);
4873 if (status)
4874 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4875 status);
4876
4877 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
4878 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4879 MGMT_STATUS_INVALID_PARAMS);
4880
4881 hci_dev_lock(hdev);
4882
4883 val = !!cp->val;
4884
4885 /* The following conditions are ones which mean that we should
4886 * not do any HCI communication but directly send a mgmt
4887 * response to user space (after toggling the flag if
4888 * necessary).
4889 */
4890 if (!hdev_is_powered(hdev) ||
4891 (val == hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
4892 (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE)) ||
4893 hci_conn_num(hdev, LE_LINK) > 0 ||
4894 (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
4895 hdev->le_scan_type == LE_SCAN_ACTIVE)) {
4896 bool changed;
4897
4898 if (cp->val) {
4899 changed = !hci_dev_test_and_set_flag(hdev, HCI_ADVERTISING);
4900 if (cp->val == 0x02)
4901 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4902 else
4903 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4904 } else {
4905 changed = hci_dev_test_and_clear_flag(hdev, HCI_ADVERTISING);
4906 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4907 }
4908
4909 err = send_settings_rsp(sk, MGMT_OP_SET_ADVERTISING, hdev);
4910 if (err < 0)
4911 goto unlock;
4912
4913 if (changed)
4914 err = new_settings(hdev, sk);
4915
4916 goto unlock;
4917 }
4918
4919 if (pending_find(MGMT_OP_SET_ADVERTISING, hdev) ||
4920 pending_find(MGMT_OP_SET_LE, hdev)) {
4921 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4922 MGMT_STATUS_BUSY);
4923 goto unlock;
4924 }
4925
4926 cmd = mgmt_pending_add(sk, MGMT_OP_SET_ADVERTISING, hdev, data, len);
4927 if (!cmd) {
4928 err = -ENOMEM;
4929 goto unlock;
4930 }
4931
4932 hci_req_init(&req, hdev);
4933
4934 if (cp->val == 0x02)
4935 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4936 else
4937 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4938
4939 cancel_adv_timeout(hdev);
4940
4941 if (val) {
4942 /* Switch to instance "0" for the Set Advertising setting.
4943 * We cannot use update_[adv|scan_rsp]_data() here as the
4944 * HCI_ADVERTISING flag is not yet set.
4945 */
4946 update_inst_adv_data(&req, 0x00);
4947 update_inst_scan_rsp_data(&req, 0x00);
4948 enable_advertising(&req);
4949 } else {
4950 disable_advertising(&req);
4951 }
4952
4953 err = hci_req_run(&req, set_advertising_complete);
4954 if (err < 0)
4955 mgmt_pending_remove(cmd);
4956
4957 unlock:
4958 hci_dev_unlock(hdev);
4959 return err;
4960 }
4961
4962 static int set_static_address(struct sock *sk, struct hci_dev *hdev,
4963 void *data, u16 len)
4964 {
4965 struct mgmt_cp_set_static_address *cp = data;
4966 int err;
4967
4968 BT_DBG("%s", hdev->name);
4969
4970 if (!lmp_le_capable(hdev))
4971 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
4972 MGMT_STATUS_NOT_SUPPORTED);
4973
4974 if (hdev_is_powered(hdev))
4975 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
4976 MGMT_STATUS_REJECTED);
4977
4978 if (bacmp(&cp->bdaddr, BDADDR_ANY)) {
4979 if (!bacmp(&cp->bdaddr, BDADDR_NONE))
4980 return mgmt_cmd_status(sk, hdev->id,
4981 MGMT_OP_SET_STATIC_ADDRESS,
4982 MGMT_STATUS_INVALID_PARAMS);
4983
4984 /* Two most significant bits shall be set */
4985 if ((cp->bdaddr.b[5] & 0xc0) != 0xc0)
4986 return mgmt_cmd_status(sk, hdev->id,
4987 MGMT_OP_SET_STATIC_ADDRESS,
4988 MGMT_STATUS_INVALID_PARAMS);
4989 }
4990
4991 hci_dev_lock(hdev);
4992
4993 bacpy(&hdev->static_addr, &cp->bdaddr);
4994
4995 err = send_settings_rsp(sk, MGMT_OP_SET_STATIC_ADDRESS, hdev);
4996 if (err < 0)
4997 goto unlock;
4998
4999 err = new_settings(hdev, sk);
5000
5001 unlock:
5002 hci_dev_unlock(hdev);
5003 return err;
5004 }
5005
5006 static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
5007 void *data, u16 len)
5008 {
5009 struct mgmt_cp_set_scan_params *cp = data;
5010 __u16 interval, window;
5011 int err;
5012
5013 BT_DBG("%s", hdev->name);
5014
5015 if (!lmp_le_capable(hdev))
5016 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5017 MGMT_STATUS_NOT_SUPPORTED);
5018
5019 interval = __le16_to_cpu(cp->interval);
5020
5021 if (interval < 0x0004 || interval > 0x4000)
5022 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5023 MGMT_STATUS_INVALID_PARAMS);
5024
5025 window = __le16_to_cpu(cp->window);
5026
5027 if (window < 0x0004 || window > 0x4000)
5028 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5029 MGMT_STATUS_INVALID_PARAMS);
5030
5031 if (window > interval)
5032 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5033 MGMT_STATUS_INVALID_PARAMS);
5034
5035 hci_dev_lock(hdev);
5036
5037 hdev->le_scan_interval = interval;
5038 hdev->le_scan_window = window;
5039
5040 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, 0,
5041 NULL, 0);
5042
5043 /* If background scan is running, restart it so new parameters are
5044 * loaded.
5045 */
5046 if (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
5047 hdev->discovery.state == DISCOVERY_STOPPED) {
5048 struct hci_request req;
5049
5050 hci_req_init(&req, hdev);
5051
5052 hci_req_add_le_scan_disable(&req);
5053 hci_req_add_le_passive_scan(&req);
5054
5055 hci_req_run(&req, NULL);
5056 }
5057
5058 hci_dev_unlock(hdev);
5059
5060 return err;
5061 }
5062
5063 static void fast_connectable_complete(struct hci_dev *hdev, u8 status,
5064 u16 opcode)
5065 {
5066 struct mgmt_pending_cmd *cmd;
5067
5068 BT_DBG("status 0x%02x", status);
5069
5070 hci_dev_lock(hdev);
5071
5072 cmd = pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev);
5073 if (!cmd)
5074 goto unlock;
5075
5076 if (status) {
5077 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5078 mgmt_status(status));
5079 } else {
5080 struct mgmt_mode *cp = cmd->param;
5081
5082 if (cp->val)
5083 hci_dev_set_flag(hdev, HCI_FAST_CONNECTABLE);
5084 else
5085 hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
5086
5087 send_settings_rsp(cmd->sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev);
5088 new_settings(hdev, cmd->sk);
5089 }
5090
5091 mgmt_pending_remove(cmd);
5092
5093 unlock:
5094 hci_dev_unlock(hdev);
5095 }
5096
5097 static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
5098 void *data, u16 len)
5099 {
5100 struct mgmt_mode *cp = data;
5101 struct mgmt_pending_cmd *cmd;
5102 struct hci_request req;
5103 int err;
5104
5105 BT_DBG("%s", hdev->name);
5106
5107 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
5108 hdev->hci_ver < BLUETOOTH_VER_1_2)
5109 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5110 MGMT_STATUS_NOT_SUPPORTED);
5111
5112 if (cp->val != 0x00 && cp->val != 0x01)
5113 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5114 MGMT_STATUS_INVALID_PARAMS);
5115
5116 hci_dev_lock(hdev);
5117
5118 if (pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev)) {
5119 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5120 MGMT_STATUS_BUSY);
5121 goto unlock;
5122 }
5123
5124 if (!!cp->val == hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE)) {
5125 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
5126 hdev);
5127 goto unlock;
5128 }
5129
5130 if (!hdev_is_powered(hdev)) {
5131 hci_dev_change_flag(hdev, HCI_FAST_CONNECTABLE);
5132 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
5133 hdev);
5134 new_settings(hdev, sk);
5135 goto unlock;
5136 }
5137
5138 cmd = mgmt_pending_add(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev,
5139 data, len);
5140 if (!cmd) {
5141 err = -ENOMEM;
5142 goto unlock;
5143 }
5144
5145 hci_req_init(&req, hdev);
5146
5147 write_fast_connectable(&req, cp->val);
5148
5149 err = hci_req_run(&req, fast_connectable_complete);
5150 if (err < 0) {
5151 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5152 MGMT_STATUS_FAILED);
5153 mgmt_pending_remove(cmd);
5154 }
5155
5156 unlock:
5157 hci_dev_unlock(hdev);
5158
5159 return err;
5160 }
5161
5162 static void set_bredr_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5163 {
5164 struct mgmt_pending_cmd *cmd;
5165
5166 BT_DBG("status 0x%02x", status);
5167
5168 hci_dev_lock(hdev);
5169
5170 cmd = pending_find(MGMT_OP_SET_BREDR, hdev);
5171 if (!cmd)
5172 goto unlock;
5173
5174 if (status) {
5175 u8 mgmt_err = mgmt_status(status);
5176
5177 /* We need to restore the flag if related HCI commands
5178 * failed.
5179 */
5180 hci_dev_clear_flag(hdev, HCI_BREDR_ENABLED);
5181
5182 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
5183 } else {
5184 send_settings_rsp(cmd->sk, MGMT_OP_SET_BREDR, hdev);
5185 new_settings(hdev, cmd->sk);
5186 }
5187
5188 mgmt_pending_remove(cmd);
5189
5190 unlock:
5191 hci_dev_unlock(hdev);
5192 }
5193
5194 static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
5195 {
5196 struct mgmt_mode *cp = data;
5197 struct mgmt_pending_cmd *cmd;
5198 struct hci_request req;
5199 int err;
5200
5201 BT_DBG("request for %s", hdev->name);
5202
5203 if (!lmp_bredr_capable(hdev) || !lmp_le_capable(hdev))
5204 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5205 MGMT_STATUS_NOT_SUPPORTED);
5206
5207 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
5208 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5209 MGMT_STATUS_REJECTED);
5210
5211 if (cp->val != 0x00 && cp->val != 0x01)
5212 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5213 MGMT_STATUS_INVALID_PARAMS);
5214
5215 hci_dev_lock(hdev);
5216
5217 if (cp->val == hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
5218 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
5219 goto unlock;
5220 }
5221
5222 if (!hdev_is_powered(hdev)) {
5223 if (!cp->val) {
5224 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
5225 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
5226 hci_dev_clear_flag(hdev, HCI_LINK_SECURITY);
5227 hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
5228 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
5229 }
5230
5231 hci_dev_change_flag(hdev, HCI_BREDR_ENABLED);
5232
5233 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
5234 if (err < 0)
5235 goto unlock;
5236
5237 err = new_settings(hdev, sk);
5238 goto unlock;
5239 }
5240
5241 /* Reject disabling when powered on */
5242 if (!cp->val) {
5243 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5244 MGMT_STATUS_REJECTED);
5245 goto unlock;
5246 } else {
5247 /* When configuring a dual-mode controller to operate
5248 * with LE only and using a static address, then switching
5249 * BR/EDR back on is not allowed.
5250 *
5251 * Dual-mode controllers shall operate with the public
5252 * address as its identity address for BR/EDR and LE. So
5253 * reject the attempt to create an invalid configuration.
5254 *
5255 * The same restrictions applies when secure connections
5256 * has been enabled. For BR/EDR this is a controller feature
5257 * while for LE it is a host stack feature. This means that
5258 * switching BR/EDR back on when secure connections has been
5259 * enabled is not a supported transaction.
5260 */
5261 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
5262 (bacmp(&hdev->static_addr, BDADDR_ANY) ||
5263 hci_dev_test_flag(hdev, HCI_SC_ENABLED))) {
5264 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5265 MGMT_STATUS_REJECTED);
5266 goto unlock;
5267 }
5268 }
5269
5270 if (pending_find(MGMT_OP_SET_BREDR, hdev)) {
5271 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5272 MGMT_STATUS_BUSY);
5273 goto unlock;
5274 }
5275
5276 cmd = mgmt_pending_add(sk, MGMT_OP_SET_BREDR, hdev, data, len);
5277 if (!cmd) {
5278 err = -ENOMEM;
5279 goto unlock;
5280 }
5281
5282 /* We need to flip the bit already here so that update_adv_data
5283 * generates the correct flags.
5284 */
5285 hci_dev_set_flag(hdev, HCI_BREDR_ENABLED);
5286
5287 hci_req_init(&req, hdev);
5288
5289 write_fast_connectable(&req, false);
5290 __hci_update_page_scan(&req);
5291
5292 /* Since only the advertising data flags will change, there
5293 * is no need to update the scan response data.
5294 */
5295 update_adv_data(&req);
5296
5297 err = hci_req_run(&req, set_bredr_complete);
5298 if (err < 0)
5299 mgmt_pending_remove(cmd);
5300
5301 unlock:
5302 hci_dev_unlock(hdev);
5303 return err;
5304 }
5305
5306 static void sc_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5307 {
5308 struct mgmt_pending_cmd *cmd;
5309 struct mgmt_mode *cp;
5310
5311 BT_DBG("%s status %u", hdev->name, status);
5312
5313 hci_dev_lock(hdev);
5314
5315 cmd = pending_find(MGMT_OP_SET_SECURE_CONN, hdev);
5316 if (!cmd)
5317 goto unlock;
5318
5319 if (status) {
5320 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
5321 mgmt_status(status));
5322 goto remove;
5323 }
5324
5325 cp = cmd->param;
5326
5327 switch (cp->val) {
5328 case 0x00:
5329 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
5330 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5331 break;
5332 case 0x01:
5333 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
5334 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5335 break;
5336 case 0x02:
5337 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
5338 hci_dev_set_flag(hdev, HCI_SC_ONLY);
5339 break;
5340 }
5341
5342 send_settings_rsp(cmd->sk, MGMT_OP_SET_SECURE_CONN, hdev);
5343 new_settings(hdev, cmd->sk);
5344
5345 remove:
5346 mgmt_pending_remove(cmd);
5347 unlock:
5348 hci_dev_unlock(hdev);
5349 }
5350
5351 static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
5352 void *data, u16 len)
5353 {
5354 struct mgmt_mode *cp = data;
5355 struct mgmt_pending_cmd *cmd;
5356 struct hci_request req;
5357 u8 val;
5358 int err;
5359
5360 BT_DBG("request for %s", hdev->name);
5361
5362 if (!lmp_sc_capable(hdev) &&
5363 !hci_dev_test_flag(hdev, HCI_LE_ENABLED))
5364 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5365 MGMT_STATUS_NOT_SUPPORTED);
5366
5367 if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
5368 lmp_sc_capable(hdev) &&
5369 !hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
5370 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5371 MGMT_STATUS_REJECTED);
5372
5373 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
5374 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5375 MGMT_STATUS_INVALID_PARAMS);
5376
5377 hci_dev_lock(hdev);
5378
5379 if (!hdev_is_powered(hdev) || !lmp_sc_capable(hdev) ||
5380 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
5381 bool changed;
5382
5383 if (cp->val) {
5384 changed = !hci_dev_test_and_set_flag(hdev,
5385 HCI_SC_ENABLED);
5386 if (cp->val == 0x02)
5387 hci_dev_set_flag(hdev, HCI_SC_ONLY);
5388 else
5389 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5390 } else {
5391 changed = hci_dev_test_and_clear_flag(hdev,
5392 HCI_SC_ENABLED);
5393 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5394 }
5395
5396 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
5397 if (err < 0)
5398 goto failed;
5399
5400 if (changed)
5401 err = new_settings(hdev, sk);
5402
5403 goto failed;
5404 }
5405
5406 if (pending_find(MGMT_OP_SET_SECURE_CONN, hdev)) {
5407 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5408 MGMT_STATUS_BUSY);
5409 goto failed;
5410 }
5411
5412 val = !!cp->val;
5413
5414 if (val == hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
5415 (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5416 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
5417 goto failed;
5418 }
5419
5420 cmd = mgmt_pending_add(sk, MGMT_OP_SET_SECURE_CONN, hdev, data, len);
5421 if (!cmd) {
5422 err = -ENOMEM;
5423 goto failed;
5424 }
5425
5426 hci_req_init(&req, hdev);
5427 hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT, 1, &val);
5428 err = hci_req_run(&req, sc_enable_complete);
5429 if (err < 0) {
5430 mgmt_pending_remove(cmd);
5431 goto failed;
5432 }
5433
5434 failed:
5435 hci_dev_unlock(hdev);
5436 return err;
5437 }
5438
5439 static int set_debug_keys(struct sock *sk, struct hci_dev *hdev,
5440 void *data, u16 len)
5441 {
5442 struct mgmt_mode *cp = data;
5443 bool changed, use_changed;
5444 int err;
5445
5446 BT_DBG("request for %s", hdev->name);
5447
5448 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
5449 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEBUG_KEYS,
5450 MGMT_STATUS_INVALID_PARAMS);
5451
5452 hci_dev_lock(hdev);
5453
5454 if (cp->val)
5455 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
5456 else
5457 changed = hci_dev_test_and_clear_flag(hdev,
5458 HCI_KEEP_DEBUG_KEYS);
5459
5460 if (cp->val == 0x02)
5461 use_changed = !hci_dev_test_and_set_flag(hdev,
5462 HCI_USE_DEBUG_KEYS);
5463 else
5464 use_changed = hci_dev_test_and_clear_flag(hdev,
5465 HCI_USE_DEBUG_KEYS);
5466
5467 if (hdev_is_powered(hdev) && use_changed &&
5468 hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
5469 u8 mode = (cp->val == 0x02) ? 0x01 : 0x00;
5470 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
5471 sizeof(mode), &mode);
5472 }
5473
5474 err = send_settings_rsp(sk, MGMT_OP_SET_DEBUG_KEYS, hdev);
5475 if (err < 0)
5476 goto unlock;
5477
5478 if (changed)
5479 err = new_settings(hdev, sk);
5480
5481 unlock:
5482 hci_dev_unlock(hdev);
5483 return err;
5484 }
5485
5486 static int set_privacy(struct sock *sk, struct hci_dev *hdev, void *cp_data,
5487 u16 len)
5488 {
5489 struct mgmt_cp_set_privacy *cp = cp_data;
5490 bool changed;
5491 int err;
5492
5493 BT_DBG("request for %s", hdev->name);
5494
5495 if (!lmp_le_capable(hdev))
5496 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5497 MGMT_STATUS_NOT_SUPPORTED);
5498
5499 if (cp->privacy != 0x00 && cp->privacy != 0x01)
5500 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5501 MGMT_STATUS_INVALID_PARAMS);
5502
5503 if (hdev_is_powered(hdev))
5504 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5505 MGMT_STATUS_REJECTED);
5506
5507 hci_dev_lock(hdev);
5508
5509 /* If user space supports this command it is also expected to
5510 * handle IRKs. Therefore, set the HCI_RPA_RESOLVING flag.
5511 */
5512 hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
5513
5514 if (cp->privacy) {
5515 changed = !hci_dev_test_and_set_flag(hdev, HCI_PRIVACY);
5516 memcpy(hdev->irk, cp->irk, sizeof(hdev->irk));
5517 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
5518 } else {
5519 changed = hci_dev_test_and_clear_flag(hdev, HCI_PRIVACY);
5520 memset(hdev->irk, 0, sizeof(hdev->irk));
5521 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
5522 }
5523
5524 err = send_settings_rsp(sk, MGMT_OP_SET_PRIVACY, hdev);
5525 if (err < 0)
5526 goto unlock;
5527
5528 if (changed)
5529 err = new_settings(hdev, sk);
5530
5531 unlock:
5532 hci_dev_unlock(hdev);
5533 return err;
5534 }
5535
5536 static bool irk_is_valid(struct mgmt_irk_info *irk)
5537 {
5538 switch (irk->addr.type) {
5539 case BDADDR_LE_PUBLIC:
5540 return true;
5541
5542 case BDADDR_LE_RANDOM:
5543 /* Two most significant bits shall be set */
5544 if ((irk->addr.bdaddr.b[5] & 0xc0) != 0xc0)
5545 return false;
5546 return true;
5547 }
5548
5549 return false;
5550 }
5551
5552 static int load_irks(struct sock *sk, struct hci_dev *hdev, void *cp_data,
5553 u16 len)
5554 {
5555 struct mgmt_cp_load_irks *cp = cp_data;
5556 const u16 max_irk_count = ((U16_MAX - sizeof(*cp)) /
5557 sizeof(struct mgmt_irk_info));
5558 u16 irk_count, expected_len;
5559 int i, err;
5560
5561 BT_DBG("request for %s", hdev->name);
5562
5563 if (!lmp_le_capable(hdev))
5564 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5565 MGMT_STATUS_NOT_SUPPORTED);
5566
5567 irk_count = __le16_to_cpu(cp->irk_count);
5568 if (irk_count > max_irk_count) {
5569 BT_ERR("load_irks: too big irk_count value %u", irk_count);
5570 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5571 MGMT_STATUS_INVALID_PARAMS);
5572 }
5573
5574 expected_len = sizeof(*cp) + irk_count * sizeof(struct mgmt_irk_info);
5575 if (expected_len != len) {
5576 BT_ERR("load_irks: expected %u bytes, got %u bytes",
5577 expected_len, len);
5578 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5579 MGMT_STATUS_INVALID_PARAMS);
5580 }
5581
5582 BT_DBG("%s irk_count %u", hdev->name, irk_count);
5583
5584 for (i = 0; i < irk_count; i++) {
5585 struct mgmt_irk_info *key = &cp->irks[i];
5586
5587 if (!irk_is_valid(key))
5588 return mgmt_cmd_status(sk, hdev->id,
5589 MGMT_OP_LOAD_IRKS,
5590 MGMT_STATUS_INVALID_PARAMS);
5591 }
5592
5593 hci_dev_lock(hdev);
5594
5595 hci_smp_irks_clear(hdev);
5596
5597 for (i = 0; i < irk_count; i++) {
5598 struct mgmt_irk_info *irk = &cp->irks[i];
5599 u8 addr_type;
5600
5601 if (irk->addr.type == BDADDR_LE_PUBLIC)
5602 addr_type = ADDR_LE_DEV_PUBLIC;
5603 else
5604 addr_type = ADDR_LE_DEV_RANDOM;
5605
5606 hci_add_irk(hdev, &irk->addr.bdaddr, addr_type, irk->val,
5607 BDADDR_ANY);
5608 }
5609
5610 hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
5611
5612 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_IRKS, 0, NULL, 0);
5613
5614 hci_dev_unlock(hdev);
5615
5616 return err;
5617 }
5618
5619 static bool ltk_is_valid(struct mgmt_ltk_info *key)
5620 {
5621 if (key->master != 0x00 && key->master != 0x01)
5622 return false;
5623
5624 switch (key->addr.type) {
5625 case BDADDR_LE_PUBLIC:
5626 return true;
5627
5628 case BDADDR_LE_RANDOM:
5629 /* Two most significant bits shall be set */
5630 if ((key->addr.bdaddr.b[5] & 0xc0) != 0xc0)
5631 return false;
5632 return true;
5633 }
5634
5635 return false;
5636 }
5637
5638 static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
5639 void *cp_data, u16 len)
5640 {
5641 struct mgmt_cp_load_long_term_keys *cp = cp_data;
5642 const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
5643 sizeof(struct mgmt_ltk_info));
5644 u16 key_count, expected_len;
5645 int i, err;
5646
5647 BT_DBG("request for %s", hdev->name);
5648
5649 if (!lmp_le_capable(hdev))
5650 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5651 MGMT_STATUS_NOT_SUPPORTED);
5652
5653 key_count = __le16_to_cpu(cp->key_count);
5654 if (key_count > max_key_count) {
5655 BT_ERR("load_ltks: too big key_count value %u", key_count);
5656 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5657 MGMT_STATUS_INVALID_PARAMS);
5658 }
5659
5660 expected_len = sizeof(*cp) + key_count *
5661 sizeof(struct mgmt_ltk_info);
5662 if (expected_len != len) {
5663 BT_ERR("load_keys: expected %u bytes, got %u bytes",
5664 expected_len, len);
5665 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5666 MGMT_STATUS_INVALID_PARAMS);
5667 }
5668
5669 BT_DBG("%s key_count %u", hdev->name, key_count);
5670
5671 for (i = 0; i < key_count; i++) {
5672 struct mgmt_ltk_info *key = &cp->keys[i];
5673
5674 if (!ltk_is_valid(key))
5675 return mgmt_cmd_status(sk, hdev->id,
5676 MGMT_OP_LOAD_LONG_TERM_KEYS,
5677 MGMT_STATUS_INVALID_PARAMS);
5678 }
5679
5680 hci_dev_lock(hdev);
5681
5682 hci_smp_ltks_clear(hdev);
5683
5684 for (i = 0; i < key_count; i++) {
5685 struct mgmt_ltk_info *key = &cp->keys[i];
5686 u8 type, addr_type, authenticated;
5687
5688 if (key->addr.type == BDADDR_LE_PUBLIC)
5689 addr_type = ADDR_LE_DEV_PUBLIC;
5690 else
5691 addr_type = ADDR_LE_DEV_RANDOM;
5692
5693 switch (key->type) {
5694 case MGMT_LTK_UNAUTHENTICATED:
5695 authenticated = 0x00;
5696 type = key->master ? SMP_LTK : SMP_LTK_SLAVE;
5697 break;
5698 case MGMT_LTK_AUTHENTICATED:
5699 authenticated = 0x01;
5700 type = key->master ? SMP_LTK : SMP_LTK_SLAVE;
5701 break;
5702 case MGMT_LTK_P256_UNAUTH:
5703 authenticated = 0x00;
5704 type = SMP_LTK_P256;
5705 break;
5706 case MGMT_LTK_P256_AUTH:
5707 authenticated = 0x01;
5708 type = SMP_LTK_P256;
5709 break;
5710 case MGMT_LTK_P256_DEBUG:
5711 authenticated = 0x00;
5712 type = SMP_LTK_P256_DEBUG;
5713 default:
5714 continue;
5715 }
5716
5717 hci_add_ltk(hdev, &key->addr.bdaddr, addr_type, type,
5718 authenticated, key->val, key->enc_size, key->ediv,
5719 key->rand);
5720 }
5721
5722 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS, 0,
5723 NULL, 0);
5724
5725 hci_dev_unlock(hdev);
5726
5727 return err;
5728 }
5729
5730 static int conn_info_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
5731 {
5732 struct hci_conn *conn = cmd->user_data;
5733 struct mgmt_rp_get_conn_info rp;
5734 int err;
5735
5736 memcpy(&rp.addr, cmd->param, sizeof(rp.addr));
5737
5738 if (status == MGMT_STATUS_SUCCESS) {
5739 rp.rssi = conn->rssi;
5740 rp.tx_power = conn->tx_power;
5741 rp.max_tx_power = conn->max_tx_power;
5742 } else {
5743 rp.rssi = HCI_RSSI_INVALID;
5744 rp.tx_power = HCI_TX_POWER_INVALID;
5745 rp.max_tx_power = HCI_TX_POWER_INVALID;
5746 }
5747
5748 err = mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_GET_CONN_INFO,
5749 status, &rp, sizeof(rp));
5750
5751 hci_conn_drop(conn);
5752 hci_conn_put(conn);
5753
5754 return err;
5755 }
5756
5757 static void conn_info_refresh_complete(struct hci_dev *hdev, u8 hci_status,
5758 u16 opcode)
5759 {
5760 struct hci_cp_read_rssi *cp;
5761 struct mgmt_pending_cmd *cmd;
5762 struct hci_conn *conn;
5763 u16 handle;
5764 u8 status;
5765
5766 BT_DBG("status 0x%02x", hci_status);
5767
5768 hci_dev_lock(hdev);
5769
5770 /* Commands sent in request are either Read RSSI or Read Transmit Power
5771 * Level so we check which one was last sent to retrieve connection
5772 * handle. Both commands have handle as first parameter so it's safe to
5773 * cast data on the same command struct.
5774 *
5775 * First command sent is always Read RSSI and we fail only if it fails.
5776 * In other case we simply override error to indicate success as we
5777 * already remembered if TX power value is actually valid.
5778 */
5779 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_RSSI);
5780 if (!cp) {
5781 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
5782 status = MGMT_STATUS_SUCCESS;
5783 } else {
5784 status = mgmt_status(hci_status);
5785 }
5786
5787 if (!cp) {
5788 BT_ERR("invalid sent_cmd in conn_info response");
5789 goto unlock;
5790 }
5791
5792 handle = __le16_to_cpu(cp->handle);
5793 conn = hci_conn_hash_lookup_handle(hdev, handle);
5794 if (!conn) {
5795 BT_ERR("unknown handle (%d) in conn_info response", handle);
5796 goto unlock;
5797 }
5798
5799 cmd = pending_find_data(MGMT_OP_GET_CONN_INFO, hdev, conn);
5800 if (!cmd)
5801 goto unlock;
5802
5803 cmd->cmd_complete(cmd, status);
5804 mgmt_pending_remove(cmd);
5805
5806 unlock:
5807 hci_dev_unlock(hdev);
5808 }
5809
5810 static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
5811 u16 len)
5812 {
5813 struct mgmt_cp_get_conn_info *cp = data;
5814 struct mgmt_rp_get_conn_info rp;
5815 struct hci_conn *conn;
5816 unsigned long conn_info_age;
5817 int err = 0;
5818
5819 BT_DBG("%s", hdev->name);
5820
5821 memset(&rp, 0, sizeof(rp));
5822 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
5823 rp.addr.type = cp->addr.type;
5824
5825 if (!bdaddr_type_is_valid(cp->addr.type))
5826 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5827 MGMT_STATUS_INVALID_PARAMS,
5828 &rp, sizeof(rp));
5829
5830 hci_dev_lock(hdev);
5831
5832 if (!hdev_is_powered(hdev)) {
5833 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5834 MGMT_STATUS_NOT_POWERED, &rp,
5835 sizeof(rp));
5836 goto unlock;
5837 }
5838
5839 if (cp->addr.type == BDADDR_BREDR)
5840 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
5841 &cp->addr.bdaddr);
5842 else
5843 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
5844
5845 if (!conn || conn->state != BT_CONNECTED) {
5846 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5847 MGMT_STATUS_NOT_CONNECTED, &rp,
5848 sizeof(rp));
5849 goto unlock;
5850 }
5851
5852 if (pending_find_data(MGMT_OP_GET_CONN_INFO, hdev, conn)) {
5853 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5854 MGMT_STATUS_BUSY, &rp, sizeof(rp));
5855 goto unlock;
5856 }
5857
5858 /* To avoid client trying to guess when to poll again for information we
5859 * calculate conn info age as random value between min/max set in hdev.
5860 */
5861 conn_info_age = hdev->conn_info_min_age +
5862 prandom_u32_max(hdev->conn_info_max_age -
5863 hdev->conn_info_min_age);
5864
5865 /* Query controller to refresh cached values if they are too old or were
5866 * never read.
5867 */
5868 if (time_after(jiffies, conn->conn_info_timestamp +
5869 msecs_to_jiffies(conn_info_age)) ||
5870 !conn->conn_info_timestamp) {
5871 struct hci_request req;
5872 struct hci_cp_read_tx_power req_txp_cp;
5873 struct hci_cp_read_rssi req_rssi_cp;
5874 struct mgmt_pending_cmd *cmd;
5875
5876 hci_req_init(&req, hdev);
5877 req_rssi_cp.handle = cpu_to_le16(conn->handle);
5878 hci_req_add(&req, HCI_OP_READ_RSSI, sizeof(req_rssi_cp),
5879 &req_rssi_cp);
5880
5881 /* For LE links TX power does not change thus we don't need to
5882 * query for it once value is known.
5883 */
5884 if (!bdaddr_type_is_le(cp->addr.type) ||
5885 conn->tx_power == HCI_TX_POWER_INVALID) {
5886 req_txp_cp.handle = cpu_to_le16(conn->handle);
5887 req_txp_cp.type = 0x00;
5888 hci_req_add(&req, HCI_OP_READ_TX_POWER,
5889 sizeof(req_txp_cp), &req_txp_cp);
5890 }
5891
5892 /* Max TX power needs to be read only once per connection */
5893 if (conn->max_tx_power == HCI_TX_POWER_INVALID) {
5894 req_txp_cp.handle = cpu_to_le16(conn->handle);
5895 req_txp_cp.type = 0x01;
5896 hci_req_add(&req, HCI_OP_READ_TX_POWER,
5897 sizeof(req_txp_cp), &req_txp_cp);
5898 }
5899
5900 err = hci_req_run(&req, conn_info_refresh_complete);
5901 if (err < 0)
5902 goto unlock;
5903
5904 cmd = mgmt_pending_add(sk, MGMT_OP_GET_CONN_INFO, hdev,
5905 data, len);
5906 if (!cmd) {
5907 err = -ENOMEM;
5908 goto unlock;
5909 }
5910
5911 hci_conn_hold(conn);
5912 cmd->user_data = hci_conn_get(conn);
5913 cmd->cmd_complete = conn_info_cmd_complete;
5914
5915 conn->conn_info_timestamp = jiffies;
5916 } else {
5917 /* Cache is valid, just reply with values cached in hci_conn */
5918 rp.rssi = conn->rssi;
5919 rp.tx_power = conn->tx_power;
5920 rp.max_tx_power = conn->max_tx_power;
5921
5922 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5923 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
5924 }
5925
5926 unlock:
5927 hci_dev_unlock(hdev);
5928 return err;
5929 }
5930
5931 static int clock_info_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
5932 {
5933 struct hci_conn *conn = cmd->user_data;
5934 struct mgmt_rp_get_clock_info rp;
5935 struct hci_dev *hdev;
5936 int err;
5937
5938 memset(&rp, 0, sizeof(rp));
5939 memcpy(&rp.addr, &cmd->param, sizeof(rp.addr));
5940
5941 if (status)
5942 goto complete;
5943
5944 hdev = hci_dev_get(cmd->index);
5945 if (hdev) {
5946 rp.local_clock = cpu_to_le32(hdev->clock);
5947 hci_dev_put(hdev);
5948 }
5949
5950 if (conn) {
5951 rp.piconet_clock = cpu_to_le32(conn->clock);
5952 rp.accuracy = cpu_to_le16(conn->clock_accuracy);
5953 }
5954
5955 complete:
5956 err = mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status, &rp,
5957 sizeof(rp));
5958
5959 if (conn) {
5960 hci_conn_drop(conn);
5961 hci_conn_put(conn);
5962 }
5963
5964 return err;
5965 }
5966
5967 static void get_clock_info_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5968 {
5969 struct hci_cp_read_clock *hci_cp;
5970 struct mgmt_pending_cmd *cmd;
5971 struct hci_conn *conn;
5972
5973 BT_DBG("%s status %u", hdev->name, status);
5974
5975 hci_dev_lock(hdev);
5976
5977 hci_cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
5978 if (!hci_cp)
5979 goto unlock;
5980
5981 if (hci_cp->which) {
5982 u16 handle = __le16_to_cpu(hci_cp->handle);
5983 conn = hci_conn_hash_lookup_handle(hdev, handle);
5984 } else {
5985 conn = NULL;
5986 }
5987
5988 cmd = pending_find_data(MGMT_OP_GET_CLOCK_INFO, hdev, conn);
5989 if (!cmd)
5990 goto unlock;
5991
5992 cmd->cmd_complete(cmd, mgmt_status(status));
5993 mgmt_pending_remove(cmd);
5994
5995 unlock:
5996 hci_dev_unlock(hdev);
5997 }
5998
5999 static int get_clock_info(struct sock *sk, struct hci_dev *hdev, void *data,
6000 u16 len)
6001 {
6002 struct mgmt_cp_get_clock_info *cp = data;
6003 struct mgmt_rp_get_clock_info rp;
6004 struct hci_cp_read_clock hci_cp;
6005 struct mgmt_pending_cmd *cmd;
6006 struct hci_request req;
6007 struct hci_conn *conn;
6008 int err;
6009
6010 BT_DBG("%s", hdev->name);
6011
6012 memset(&rp, 0, sizeof(rp));
6013 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
6014 rp.addr.type = cp->addr.type;
6015
6016 if (cp->addr.type != BDADDR_BREDR)
6017 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
6018 MGMT_STATUS_INVALID_PARAMS,
6019 &rp, sizeof(rp));
6020
6021 hci_dev_lock(hdev);
6022
6023 if (!hdev_is_powered(hdev)) {
6024 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
6025 MGMT_STATUS_NOT_POWERED, &rp,
6026 sizeof(rp));
6027 goto unlock;
6028 }
6029
6030 if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
6031 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
6032 &cp->addr.bdaddr);
6033 if (!conn || conn->state != BT_CONNECTED) {
6034 err = mgmt_cmd_complete(sk, hdev->id,
6035 MGMT_OP_GET_CLOCK_INFO,
6036 MGMT_STATUS_NOT_CONNECTED,
6037 &rp, sizeof(rp));
6038 goto unlock;
6039 }
6040 } else {
6041 conn = NULL;
6042 }
6043
6044 cmd = mgmt_pending_add(sk, MGMT_OP_GET_CLOCK_INFO, hdev, data, len);
6045 if (!cmd) {
6046 err = -ENOMEM;
6047 goto unlock;
6048 }
6049
6050 cmd->cmd_complete = clock_info_cmd_complete;
6051
6052 hci_req_init(&req, hdev);
6053
6054 memset(&hci_cp, 0, sizeof(hci_cp));
6055 hci_req_add(&req, HCI_OP_READ_CLOCK, sizeof(hci_cp), &hci_cp);
6056
6057 if (conn) {
6058 hci_conn_hold(conn);
6059 cmd->user_data = hci_conn_get(conn);
6060
6061 hci_cp.handle = cpu_to_le16(conn->handle);
6062 hci_cp.which = 0x01; /* Piconet clock */
6063 hci_req_add(&req, HCI_OP_READ_CLOCK, sizeof(hci_cp), &hci_cp);
6064 }
6065
6066 err = hci_req_run(&req, get_clock_info_complete);
6067 if (err < 0)
6068 mgmt_pending_remove(cmd);
6069
6070 unlock:
6071 hci_dev_unlock(hdev);
6072 return err;
6073 }
6074
6075 static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
6076 {
6077 struct hci_conn *conn;
6078
6079 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr);
6080 if (!conn)
6081 return false;
6082
6083 if (conn->dst_type != type)
6084 return false;
6085
6086 if (conn->state != BT_CONNECTED)
6087 return false;
6088
6089 return true;
6090 }
6091
6092 /* This function requires the caller holds hdev->lock */
6093 static int hci_conn_params_set(struct hci_request *req, bdaddr_t *addr,
6094 u8 addr_type, u8 auto_connect)
6095 {
6096 struct hci_dev *hdev = req->hdev;
6097 struct hci_conn_params *params;
6098
6099 params = hci_conn_params_add(hdev, addr, addr_type);
6100 if (!params)
6101 return -EIO;
6102
6103 if (params->auto_connect == auto_connect)
6104 return 0;
6105
6106 list_del_init(&params->action);
6107
6108 switch (auto_connect) {
6109 case HCI_AUTO_CONN_DISABLED:
6110 case HCI_AUTO_CONN_LINK_LOSS:
6111 /* If auto connect is being disabled when we're trying to
6112 * connect to device, keep connecting.
6113 */
6114 if (params->explicit_connect)
6115 list_add(&params->action, &hdev->pend_le_conns);
6116
6117 __hci_update_background_scan(req);
6118 break;
6119 case HCI_AUTO_CONN_REPORT:
6120 list_add(&params->action, &hdev->pend_le_reports);
6121 __hci_update_background_scan(req);
6122 break;
6123 case HCI_AUTO_CONN_DIRECT:
6124 case HCI_AUTO_CONN_ALWAYS:
6125 if (!is_connected(hdev, addr, addr_type)) {
6126 list_add(&params->action, &hdev->pend_le_conns);
6127 __hci_update_background_scan(req);
6128 }
6129 break;
6130 }
6131
6132 params->auto_connect = auto_connect;
6133
6134 BT_DBG("addr %pMR (type %u) auto_connect %u", addr, addr_type,
6135 auto_connect);
6136
6137 return 0;
6138 }
6139
6140 static void device_added(struct sock *sk, struct hci_dev *hdev,
6141 bdaddr_t *bdaddr, u8 type, u8 action)
6142 {
6143 struct mgmt_ev_device_added ev;
6144
6145 bacpy(&ev.addr.bdaddr, bdaddr);
6146 ev.addr.type = type;
6147 ev.action = action;
6148
6149 mgmt_event(MGMT_EV_DEVICE_ADDED, hdev, &ev, sizeof(ev), sk);
6150 }
6151
6152 static void add_device_complete(struct hci_dev *hdev, u8 status, u16 opcode)
6153 {
6154 struct mgmt_pending_cmd *cmd;
6155
6156 BT_DBG("status 0x%02x", status);
6157
6158 hci_dev_lock(hdev);
6159
6160 cmd = pending_find(MGMT_OP_ADD_DEVICE, hdev);
6161 if (!cmd)
6162 goto unlock;
6163
6164 cmd->cmd_complete(cmd, mgmt_status(status));
6165 mgmt_pending_remove(cmd);
6166
6167 unlock:
6168 hci_dev_unlock(hdev);
6169 }
6170
6171 static int add_device(struct sock *sk, struct hci_dev *hdev,
6172 void *data, u16 len)
6173 {
6174 struct mgmt_cp_add_device *cp = data;
6175 struct mgmt_pending_cmd *cmd;
6176 struct hci_request req;
6177 u8 auto_conn, addr_type;
6178 int err;
6179
6180 BT_DBG("%s", hdev->name);
6181
6182 if (!bdaddr_type_is_valid(cp->addr.type) ||
6183 !bacmp(&cp->addr.bdaddr, BDADDR_ANY))
6184 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
6185 MGMT_STATUS_INVALID_PARAMS,
6186 &cp->addr, sizeof(cp->addr));
6187
6188 if (cp->action != 0x00 && cp->action != 0x01 && cp->action != 0x02)
6189 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
6190 MGMT_STATUS_INVALID_PARAMS,
6191 &cp->addr, sizeof(cp->addr));
6192
6193 hci_req_init(&req, hdev);
6194
6195 hci_dev_lock(hdev);
6196
6197 cmd = mgmt_pending_add(sk, MGMT_OP_ADD_DEVICE, hdev, data, len);
6198 if (!cmd) {
6199 err = -ENOMEM;
6200 goto unlock;
6201 }
6202
6203 cmd->cmd_complete = addr_cmd_complete;
6204
6205 if (cp->addr.type == BDADDR_BREDR) {
6206 /* Only incoming connections action is supported for now */
6207 if (cp->action != 0x01) {
6208 err = cmd->cmd_complete(cmd,
6209 MGMT_STATUS_INVALID_PARAMS);
6210 mgmt_pending_remove(cmd);
6211 goto unlock;
6212 }
6213
6214 err = hci_bdaddr_list_add(&hdev->whitelist, &cp->addr.bdaddr,
6215 cp->addr.type);
6216 if (err)
6217 goto unlock;
6218
6219 __hci_update_page_scan(&req);
6220
6221 goto added;
6222 }
6223
6224 if (cp->addr.type == BDADDR_LE_PUBLIC)
6225 addr_type = ADDR_LE_DEV_PUBLIC;
6226 else
6227 addr_type = ADDR_LE_DEV_RANDOM;
6228
6229 if (cp->action == 0x02)
6230 auto_conn = HCI_AUTO_CONN_ALWAYS;
6231 else if (cp->action == 0x01)
6232 auto_conn = HCI_AUTO_CONN_DIRECT;
6233 else
6234 auto_conn = HCI_AUTO_CONN_REPORT;
6235
6236 /* Kernel internally uses conn_params with resolvable private
6237 * address, but Add Device allows only identity addresses.
6238 * Make sure it is enforced before calling
6239 * hci_conn_params_lookup.
6240 */
6241 if (!hci_is_identity_address(&cp->addr.bdaddr, addr_type)) {
6242 err = cmd->cmd_complete(cmd, MGMT_STATUS_INVALID_PARAMS);
6243 mgmt_pending_remove(cmd);
6244 goto unlock;
6245 }
6246
6247 /* If the connection parameters don't exist for this device,
6248 * they will be created and configured with defaults.
6249 */
6250 if (hci_conn_params_set(&req, &cp->addr.bdaddr, addr_type,
6251 auto_conn) < 0) {
6252 err = cmd->cmd_complete(cmd, MGMT_STATUS_FAILED);
6253 mgmt_pending_remove(cmd);
6254 goto unlock;
6255 }
6256
6257 added:
6258 device_added(sk, hdev, &cp->addr.bdaddr, cp->addr.type, cp->action);
6259
6260 err = hci_req_run(&req, add_device_complete);
6261 if (err < 0) {
6262 /* ENODATA means no HCI commands were needed (e.g. if
6263 * the adapter is powered off).
6264 */
6265 if (err == -ENODATA)
6266 err = cmd->cmd_complete(cmd, MGMT_STATUS_SUCCESS);
6267 mgmt_pending_remove(cmd);
6268 }
6269
6270 unlock:
6271 hci_dev_unlock(hdev);
6272 return err;
6273 }
6274
6275 static void device_removed(struct sock *sk, struct hci_dev *hdev,
6276 bdaddr_t *bdaddr, u8 type)
6277 {
6278 struct mgmt_ev_device_removed ev;
6279
6280 bacpy(&ev.addr.bdaddr, bdaddr);
6281 ev.addr.type = type;
6282
6283 mgmt_event(MGMT_EV_DEVICE_REMOVED, hdev, &ev, sizeof(ev), sk);
6284 }
6285
6286 static void remove_device_complete(struct hci_dev *hdev, u8 status, u16 opcode)
6287 {
6288 struct mgmt_pending_cmd *cmd;
6289
6290 BT_DBG("status 0x%02x", status);
6291
6292 hci_dev_lock(hdev);
6293
6294 cmd = pending_find(MGMT_OP_REMOVE_DEVICE, hdev);
6295 if (!cmd)
6296 goto unlock;
6297
6298 cmd->cmd_complete(cmd, mgmt_status(status));
6299 mgmt_pending_remove(cmd);
6300
6301 unlock:
6302 hci_dev_unlock(hdev);
6303 }
6304
6305 static int remove_device(struct sock *sk, struct hci_dev *hdev,
6306 void *data, u16 len)
6307 {
6308 struct mgmt_cp_remove_device *cp = data;
6309 struct mgmt_pending_cmd *cmd;
6310 struct hci_request req;
6311 int err;
6312
6313 BT_DBG("%s", hdev->name);
6314
6315 hci_req_init(&req, hdev);
6316
6317 hci_dev_lock(hdev);
6318
6319 cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_DEVICE, hdev, data, len);
6320 if (!cmd) {
6321 err = -ENOMEM;
6322 goto unlock;
6323 }
6324
6325 cmd->cmd_complete = addr_cmd_complete;
6326
6327 if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
6328 struct hci_conn_params *params;
6329 u8 addr_type;
6330
6331 if (!bdaddr_type_is_valid(cp->addr.type)) {
6332 err = cmd->cmd_complete(cmd,
6333 MGMT_STATUS_INVALID_PARAMS);
6334 mgmt_pending_remove(cmd);
6335 goto unlock;
6336 }
6337
6338 if (cp->addr.type == BDADDR_BREDR) {
6339 err = hci_bdaddr_list_del(&hdev->whitelist,
6340 &cp->addr.bdaddr,
6341 cp->addr.type);
6342 if (err) {
6343 err = cmd->cmd_complete(cmd,
6344 MGMT_STATUS_INVALID_PARAMS);
6345 mgmt_pending_remove(cmd);
6346 goto unlock;
6347 }
6348
6349 __hci_update_page_scan(&req);
6350
6351 device_removed(sk, hdev, &cp->addr.bdaddr,
6352 cp->addr.type);
6353 goto complete;
6354 }
6355
6356 if (cp->addr.type == BDADDR_LE_PUBLIC)
6357 addr_type = ADDR_LE_DEV_PUBLIC;
6358 else
6359 addr_type = ADDR_LE_DEV_RANDOM;
6360
6361 /* Kernel internally uses conn_params with resolvable private
6362 * address, but Remove Device allows only identity addresses.
6363 * Make sure it is enforced before calling
6364 * hci_conn_params_lookup.
6365 */
6366 if (!hci_is_identity_address(&cp->addr.bdaddr, addr_type)) {
6367 err = cmd->cmd_complete(cmd,
6368 MGMT_STATUS_INVALID_PARAMS);
6369 mgmt_pending_remove(cmd);
6370 goto unlock;
6371 }
6372
6373 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
6374 addr_type);
6375 if (!params) {
6376 err = cmd->cmd_complete(cmd,
6377 MGMT_STATUS_INVALID_PARAMS);
6378 mgmt_pending_remove(cmd);
6379 goto unlock;
6380 }
6381
6382 if (params->auto_connect == HCI_AUTO_CONN_DISABLED) {
6383 err = cmd->cmd_complete(cmd,
6384 MGMT_STATUS_INVALID_PARAMS);
6385 mgmt_pending_remove(cmd);
6386 goto unlock;
6387 }
6388
6389 list_del(&params->action);
6390 list_del(&params->list);
6391 kfree(params);
6392 __hci_update_background_scan(&req);
6393
6394 device_removed(sk, hdev, &cp->addr.bdaddr, cp->addr.type);
6395 } else {
6396 struct hci_conn_params *p, *tmp;
6397 struct bdaddr_list *b, *btmp;
6398
6399 if (cp->addr.type) {
6400 err = cmd->cmd_complete(cmd,
6401 MGMT_STATUS_INVALID_PARAMS);
6402 mgmt_pending_remove(cmd);
6403 goto unlock;
6404 }
6405
6406 list_for_each_entry_safe(b, btmp, &hdev->whitelist, list) {
6407 device_removed(sk, hdev, &b->bdaddr, b->bdaddr_type);
6408 list_del(&b->list);
6409 kfree(b);
6410 }
6411
6412 __hci_update_page_scan(&req);
6413
6414 list_for_each_entry_safe(p, tmp, &hdev->le_conn_params, list) {
6415 if (p->auto_connect == HCI_AUTO_CONN_DISABLED)
6416 continue;
6417 device_removed(sk, hdev, &p->addr, p->addr_type);
6418 list_del(&p->action);
6419 list_del(&p->list);
6420 kfree(p);
6421 }
6422
6423 BT_DBG("All LE connection parameters were removed");
6424
6425 __hci_update_background_scan(&req);
6426 }
6427
6428 complete:
6429 err = hci_req_run(&req, remove_device_complete);
6430 if (err < 0) {
6431 /* ENODATA means no HCI commands were needed (e.g. if
6432 * the adapter is powered off).
6433 */
6434 if (err == -ENODATA)
6435 err = cmd->cmd_complete(cmd, MGMT_STATUS_SUCCESS);
6436 mgmt_pending_remove(cmd);
6437 }
6438
6439 unlock:
6440 hci_dev_unlock(hdev);
6441 return err;
6442 }
6443
6444 static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
6445 u16 len)
6446 {
6447 struct mgmt_cp_load_conn_param *cp = data;
6448 const u16 max_param_count = ((U16_MAX - sizeof(*cp)) /
6449 sizeof(struct mgmt_conn_param));
6450 u16 param_count, expected_len;
6451 int i;
6452
6453 if (!lmp_le_capable(hdev))
6454 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6455 MGMT_STATUS_NOT_SUPPORTED);
6456
6457 param_count = __le16_to_cpu(cp->param_count);
6458 if (param_count > max_param_count) {
6459 BT_ERR("load_conn_param: too big param_count value %u",
6460 param_count);
6461 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6462 MGMT_STATUS_INVALID_PARAMS);
6463 }
6464
6465 expected_len = sizeof(*cp) + param_count *
6466 sizeof(struct mgmt_conn_param);
6467 if (expected_len != len) {
6468 BT_ERR("load_conn_param: expected %u bytes, got %u bytes",
6469 expected_len, len);
6470 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6471 MGMT_STATUS_INVALID_PARAMS);
6472 }
6473
6474 BT_DBG("%s param_count %u", hdev->name, param_count);
6475
6476 hci_dev_lock(hdev);
6477
6478 hci_conn_params_clear_disabled(hdev);
6479
6480 for (i = 0; i < param_count; i++) {
6481 struct mgmt_conn_param *param = &cp->params[i];
6482 struct hci_conn_params *hci_param;
6483 u16 min, max, latency, timeout;
6484 u8 addr_type;
6485
6486 BT_DBG("Adding %pMR (type %u)", &param->addr.bdaddr,
6487 param->addr.type);
6488
6489 if (param->addr.type == BDADDR_LE_PUBLIC) {
6490 addr_type = ADDR_LE_DEV_PUBLIC;
6491 } else if (param->addr.type == BDADDR_LE_RANDOM) {
6492 addr_type = ADDR_LE_DEV_RANDOM;
6493 } else {
6494 BT_ERR("Ignoring invalid connection parameters");
6495 continue;
6496 }
6497
6498 min = le16_to_cpu(param->min_interval);
6499 max = le16_to_cpu(param->max_interval);
6500 latency = le16_to_cpu(param->latency);
6501 timeout = le16_to_cpu(param->timeout);
6502
6503 BT_DBG("min 0x%04x max 0x%04x latency 0x%04x timeout 0x%04x",
6504 min, max, latency, timeout);
6505
6506 if (hci_check_conn_params(min, max, latency, timeout) < 0) {
6507 BT_ERR("Ignoring invalid connection parameters");
6508 continue;
6509 }
6510
6511 hci_param = hci_conn_params_add(hdev, &param->addr.bdaddr,
6512 addr_type);
6513 if (!hci_param) {
6514 BT_ERR("Failed to add connection parameters");
6515 continue;
6516 }
6517
6518 hci_param->conn_min_interval = min;
6519 hci_param->conn_max_interval = max;
6520 hci_param->conn_latency = latency;
6521 hci_param->supervision_timeout = timeout;
6522 }
6523
6524 hci_dev_unlock(hdev);
6525
6526 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM, 0,
6527 NULL, 0);
6528 }
6529
6530 static int set_external_config(struct sock *sk, struct hci_dev *hdev,
6531 void *data, u16 len)
6532 {
6533 struct mgmt_cp_set_external_config *cp = data;
6534 bool changed;
6535 int err;
6536
6537 BT_DBG("%s", hdev->name);
6538
6539 if (hdev_is_powered(hdev))
6540 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6541 MGMT_STATUS_REJECTED);
6542
6543 if (cp->config != 0x00 && cp->config != 0x01)
6544 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6545 MGMT_STATUS_INVALID_PARAMS);
6546
6547 if (!test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
6548 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6549 MGMT_STATUS_NOT_SUPPORTED);
6550
6551 hci_dev_lock(hdev);
6552
6553 if (cp->config)
6554 changed = !hci_dev_test_and_set_flag(hdev, HCI_EXT_CONFIGURED);
6555 else
6556 changed = hci_dev_test_and_clear_flag(hdev, HCI_EXT_CONFIGURED);
6557
6558 err = send_options_rsp(sk, MGMT_OP_SET_EXTERNAL_CONFIG, hdev);
6559 if (err < 0)
6560 goto unlock;
6561
6562 if (!changed)
6563 goto unlock;
6564
6565 err = new_options(hdev, sk);
6566
6567 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED) == is_configured(hdev)) {
6568 mgmt_index_removed(hdev);
6569
6570 if (hci_dev_test_and_change_flag(hdev, HCI_UNCONFIGURED)) {
6571 hci_dev_set_flag(hdev, HCI_CONFIG);
6572 hci_dev_set_flag(hdev, HCI_AUTO_OFF);
6573
6574 queue_work(hdev->req_workqueue, &hdev->power_on);
6575 } else {
6576 set_bit(HCI_RAW, &hdev->flags);
6577 mgmt_index_added(hdev);
6578 }
6579 }
6580
6581 unlock:
6582 hci_dev_unlock(hdev);
6583 return err;
6584 }
6585
6586 static int set_public_address(struct sock *sk, struct hci_dev *hdev,
6587 void *data, u16 len)
6588 {
6589 struct mgmt_cp_set_public_address *cp = data;
6590 bool changed;
6591 int err;
6592
6593 BT_DBG("%s", hdev->name);
6594
6595 if (hdev_is_powered(hdev))
6596 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6597 MGMT_STATUS_REJECTED);
6598
6599 if (!bacmp(&cp->bdaddr, BDADDR_ANY))
6600 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6601 MGMT_STATUS_INVALID_PARAMS);
6602
6603 if (!hdev->set_bdaddr)
6604 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6605 MGMT_STATUS_NOT_SUPPORTED);
6606
6607 hci_dev_lock(hdev);
6608
6609 changed = !!bacmp(&hdev->public_addr, &cp->bdaddr);
6610 bacpy(&hdev->public_addr, &cp->bdaddr);
6611
6612 err = send_options_rsp(sk, MGMT_OP_SET_PUBLIC_ADDRESS, hdev);
6613 if (err < 0)
6614 goto unlock;
6615
6616 if (!changed)
6617 goto unlock;
6618
6619 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
6620 err = new_options(hdev, sk);
6621
6622 if (is_configured(hdev)) {
6623 mgmt_index_removed(hdev);
6624
6625 hci_dev_clear_flag(hdev, HCI_UNCONFIGURED);
6626
6627 hci_dev_set_flag(hdev, HCI_CONFIG);
6628 hci_dev_set_flag(hdev, HCI_AUTO_OFF);
6629
6630 queue_work(hdev->req_workqueue, &hdev->power_on);
6631 }
6632
6633 unlock:
6634 hci_dev_unlock(hdev);
6635 return err;
6636 }
6637
6638 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
6639 u8 data_len)
6640 {
6641 eir[eir_len++] = sizeof(type) + data_len;
6642 eir[eir_len++] = type;
6643 memcpy(&eir[eir_len], data, data_len);
6644 eir_len += data_len;
6645
6646 return eir_len;
6647 }
6648
6649 static void read_local_oob_ext_data_complete(struct hci_dev *hdev, u8 status,
6650 u16 opcode, struct sk_buff *skb)
6651 {
6652 const struct mgmt_cp_read_local_oob_ext_data *mgmt_cp;
6653 struct mgmt_rp_read_local_oob_ext_data *mgmt_rp;
6654 u8 *h192, *r192, *h256, *r256;
6655 struct mgmt_pending_cmd *cmd;
6656 u16 eir_len;
6657 int err;
6658
6659 BT_DBG("%s status %u", hdev->name, status);
6660
6661 cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev);
6662 if (!cmd)
6663 return;
6664
6665 mgmt_cp = cmd->param;
6666
6667 if (status) {
6668 status = mgmt_status(status);
6669 eir_len = 0;
6670
6671 h192 = NULL;
6672 r192 = NULL;
6673 h256 = NULL;
6674 r256 = NULL;
6675 } else if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
6676 struct hci_rp_read_local_oob_data *rp;
6677
6678 if (skb->len != sizeof(*rp)) {
6679 status = MGMT_STATUS_FAILED;
6680 eir_len = 0;
6681 } else {
6682 status = MGMT_STATUS_SUCCESS;
6683 rp = (void *)skb->data;
6684
6685 eir_len = 5 + 18 + 18;
6686 h192 = rp->hash;
6687 r192 = rp->rand;
6688 h256 = NULL;
6689 r256 = NULL;
6690 }
6691 } else {
6692 struct hci_rp_read_local_oob_ext_data *rp;
6693
6694 if (skb->len != sizeof(*rp)) {
6695 status = MGMT_STATUS_FAILED;
6696 eir_len = 0;
6697 } else {
6698 status = MGMT_STATUS_SUCCESS;
6699 rp = (void *)skb->data;
6700
6701 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6702 eir_len = 5 + 18 + 18;
6703 h192 = NULL;
6704 r192 = NULL;
6705 } else {
6706 eir_len = 5 + 18 + 18 + 18 + 18;
6707 h192 = rp->hash192;
6708 r192 = rp->rand192;
6709 }
6710
6711 h256 = rp->hash256;
6712 r256 = rp->rand256;
6713 }
6714 }
6715
6716 mgmt_rp = kmalloc(sizeof(*mgmt_rp) + eir_len, GFP_KERNEL);
6717 if (!mgmt_rp)
6718 goto done;
6719
6720 if (status)
6721 goto send_rsp;
6722
6723 eir_len = eir_append_data(mgmt_rp->eir, 0, EIR_CLASS_OF_DEV,
6724 hdev->dev_class, 3);
6725
6726 if (h192 && r192) {
6727 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6728 EIR_SSP_HASH_C192, h192, 16);
6729 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6730 EIR_SSP_RAND_R192, r192, 16);
6731 }
6732
6733 if (h256 && r256) {
6734 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6735 EIR_SSP_HASH_C256, h256, 16);
6736 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6737 EIR_SSP_RAND_R256, r256, 16);
6738 }
6739
6740 send_rsp:
6741 mgmt_rp->type = mgmt_cp->type;
6742 mgmt_rp->eir_len = cpu_to_le16(eir_len);
6743
6744 err = mgmt_cmd_complete(cmd->sk, hdev->id,
6745 MGMT_OP_READ_LOCAL_OOB_EXT_DATA, status,
6746 mgmt_rp, sizeof(*mgmt_rp) + eir_len);
6747 if (err < 0 || status)
6748 goto done;
6749
6750 hci_sock_set_flag(cmd->sk, HCI_MGMT_OOB_DATA_EVENTS);
6751
6752 err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
6753 mgmt_rp, sizeof(*mgmt_rp) + eir_len,
6754 HCI_MGMT_OOB_DATA_EVENTS, cmd->sk);
6755 done:
6756 kfree(mgmt_rp);
6757 mgmt_pending_remove(cmd);
6758 }
6759
6760 static int read_local_ssp_oob_req(struct hci_dev *hdev, struct sock *sk,
6761 struct mgmt_cp_read_local_oob_ext_data *cp)
6762 {
6763 struct mgmt_pending_cmd *cmd;
6764 struct hci_request req;
6765 int err;
6766
6767 cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev,
6768 cp, sizeof(*cp));
6769 if (!cmd)
6770 return -ENOMEM;
6771
6772 hci_req_init(&req, hdev);
6773
6774 if (bredr_sc_enabled(hdev))
6775 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
6776 else
6777 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
6778
6779 err = hci_req_run_skb(&req, read_local_oob_ext_data_complete);
6780 if (err < 0) {
6781 mgmt_pending_remove(cmd);
6782 return err;
6783 }
6784
6785 return 0;
6786 }
6787
6788 static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
6789 void *data, u16 data_len)
6790 {
6791 struct mgmt_cp_read_local_oob_ext_data *cp = data;
6792 struct mgmt_rp_read_local_oob_ext_data *rp;
6793 size_t rp_len;
6794 u16 eir_len;
6795 u8 status, flags, role, addr[7], hash[16], rand[16];
6796 int err;
6797
6798 BT_DBG("%s", hdev->name);
6799
6800 if (hdev_is_powered(hdev)) {
6801 switch (cp->type) {
6802 case BIT(BDADDR_BREDR):
6803 status = mgmt_bredr_support(hdev);
6804 if (status)
6805 eir_len = 0;
6806 else
6807 eir_len = 5;
6808 break;
6809 case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
6810 status = mgmt_le_support(hdev);
6811 if (status)
6812 eir_len = 0;
6813 else
6814 eir_len = 9 + 3 + 18 + 18 + 3;
6815 break;
6816 default:
6817 status = MGMT_STATUS_INVALID_PARAMS;
6818 eir_len = 0;
6819 break;
6820 }
6821 } else {
6822 status = MGMT_STATUS_NOT_POWERED;
6823 eir_len = 0;
6824 }
6825
6826 rp_len = sizeof(*rp) + eir_len;
6827 rp = kmalloc(rp_len, GFP_ATOMIC);
6828 if (!rp)
6829 return -ENOMEM;
6830
6831 if (status)
6832 goto complete;
6833
6834 hci_dev_lock(hdev);
6835
6836 eir_len = 0;
6837 switch (cp->type) {
6838 case BIT(BDADDR_BREDR):
6839 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
6840 err = read_local_ssp_oob_req(hdev, sk, cp);
6841 hci_dev_unlock(hdev);
6842 if (!err)
6843 goto done;
6844
6845 status = MGMT_STATUS_FAILED;
6846 goto complete;
6847 } else {
6848 eir_len = eir_append_data(rp->eir, eir_len,
6849 EIR_CLASS_OF_DEV,
6850 hdev->dev_class, 3);
6851 }
6852 break;
6853 case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
6854 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
6855 smp_generate_oob(hdev, hash, rand) < 0) {
6856 hci_dev_unlock(hdev);
6857 status = MGMT_STATUS_FAILED;
6858 goto complete;
6859 }
6860
6861 /* This should return the active RPA, but since the RPA
6862 * is only programmed on demand, it is really hard to fill
6863 * this in at the moment. For now disallow retrieving
6864 * local out-of-band data when privacy is in use.
6865 *
6866 * Returning the identity address will not help here since
6867 * pairing happens before the identity resolving key is
6868 * known and thus the connection establishment happens
6869 * based on the RPA and not the identity address.
6870 */
6871 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
6872 hci_dev_unlock(hdev);
6873 status = MGMT_STATUS_REJECTED;
6874 goto complete;
6875 }
6876
6877 if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
6878 !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
6879 (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
6880 bacmp(&hdev->static_addr, BDADDR_ANY))) {
6881 memcpy(addr, &hdev->static_addr, 6);
6882 addr[6] = 0x01;
6883 } else {
6884 memcpy(addr, &hdev->bdaddr, 6);
6885 addr[6] = 0x00;
6886 }
6887
6888 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_BDADDR,
6889 addr, sizeof(addr));
6890
6891 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
6892 role = 0x02;
6893 else
6894 role = 0x01;
6895
6896 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_ROLE,
6897 &role, sizeof(role));
6898
6899 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED)) {
6900 eir_len = eir_append_data(rp->eir, eir_len,
6901 EIR_LE_SC_CONFIRM,
6902 hash, sizeof(hash));
6903
6904 eir_len = eir_append_data(rp->eir, eir_len,
6905 EIR_LE_SC_RANDOM,
6906 rand, sizeof(rand));
6907 }
6908
6909 flags = get_adv_discov_flags(hdev);
6910
6911 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
6912 flags |= LE_AD_NO_BREDR;
6913
6914 eir_len = eir_append_data(rp->eir, eir_len, EIR_FLAGS,
6915 &flags, sizeof(flags));
6916 break;
6917 }
6918
6919 hci_dev_unlock(hdev);
6920
6921 hci_sock_set_flag(sk, HCI_MGMT_OOB_DATA_EVENTS);
6922
6923 status = MGMT_STATUS_SUCCESS;
6924
6925 complete:
6926 rp->type = cp->type;
6927 rp->eir_len = cpu_to_le16(eir_len);
6928
6929 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
6930 status, rp, sizeof(*rp) + eir_len);
6931 if (err < 0 || status)
6932 goto done;
6933
6934 err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
6935 rp, sizeof(*rp) + eir_len,
6936 HCI_MGMT_OOB_DATA_EVENTS, sk);
6937
6938 done:
6939 kfree(rp);
6940
6941 return err;
6942 }
6943
6944 static u32 get_supported_adv_flags(struct hci_dev *hdev)
6945 {
6946 u32 flags = 0;
6947
6948 flags |= MGMT_ADV_FLAG_CONNECTABLE;
6949 flags |= MGMT_ADV_FLAG_DISCOV;
6950 flags |= MGMT_ADV_FLAG_LIMITED_DISCOV;
6951 flags |= MGMT_ADV_FLAG_MANAGED_FLAGS;
6952
6953 if (hdev->adv_tx_power != HCI_TX_POWER_INVALID)
6954 flags |= MGMT_ADV_FLAG_TX_POWER;
6955
6956 return flags;
6957 }
6958
6959 static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
6960 void *data, u16 data_len)
6961 {
6962 struct mgmt_rp_read_adv_features *rp;
6963 size_t rp_len;
6964 int err, i;
6965 bool instance;
6966 struct adv_info *adv_instance;
6967 u32 supported_flags;
6968
6969 BT_DBG("%s", hdev->name);
6970
6971 if (!lmp_le_capable(hdev))
6972 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
6973 MGMT_STATUS_REJECTED);
6974
6975 hci_dev_lock(hdev);
6976
6977 rp_len = sizeof(*rp);
6978
6979 instance = hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE);
6980 if (instance)
6981 rp_len += hdev->adv_instance_cnt;
6982
6983 rp = kmalloc(rp_len, GFP_ATOMIC);
6984 if (!rp) {
6985 hci_dev_unlock(hdev);
6986 return -ENOMEM;
6987 }
6988
6989 supported_flags = get_supported_adv_flags(hdev);
6990
6991 rp->supported_flags = cpu_to_le32(supported_flags);
6992 rp->max_adv_data_len = HCI_MAX_AD_LENGTH;
6993 rp->max_scan_rsp_len = HCI_MAX_AD_LENGTH;
6994 rp->max_instances = HCI_MAX_ADV_INSTANCES;
6995
6996 if (instance) {
6997 i = 0;
6998 list_for_each_entry(adv_instance, &hdev->adv_instances, list) {
6999 if (i >= hdev->adv_instance_cnt)
7000 break;
7001
7002 rp->instance[i] = adv_instance->instance;
7003 i++;
7004 }
7005 rp->num_instances = hdev->adv_instance_cnt;
7006 } else {
7007 rp->num_instances = 0;
7008 }
7009
7010 hci_dev_unlock(hdev);
7011
7012 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
7013 MGMT_STATUS_SUCCESS, rp, rp_len);
7014
7015 kfree(rp);
7016
7017 return err;
7018 }
7019
7020 static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
7021 u8 len, bool is_adv_data)
7022 {
7023 u8 max_len = HCI_MAX_AD_LENGTH;
7024 int i, cur_len;
7025 bool flags_managed = false;
7026 bool tx_power_managed = false;
7027 u32 flags_params = MGMT_ADV_FLAG_DISCOV | MGMT_ADV_FLAG_LIMITED_DISCOV |
7028 MGMT_ADV_FLAG_MANAGED_FLAGS;
7029
7030 if (is_adv_data && (adv_flags & flags_params)) {
7031 flags_managed = true;
7032 max_len -= 3;
7033 }
7034
7035 if (is_adv_data && (adv_flags & MGMT_ADV_FLAG_TX_POWER)) {
7036 tx_power_managed = true;
7037 max_len -= 3;
7038 }
7039
7040 if (len > max_len)
7041 return false;
7042
7043 /* Make sure that the data is correctly formatted. */
7044 for (i = 0, cur_len = 0; i < len; i += (cur_len + 1)) {
7045 cur_len = data[i];
7046
7047 if (flags_managed && data[i + 1] == EIR_FLAGS)
7048 return false;
7049
7050 if (tx_power_managed && data[i + 1] == EIR_TX_POWER)
7051 return false;
7052
7053 /* If the current field length would exceed the total data
7054 * length, then it's invalid.
7055 */
7056 if (i + cur_len >= len)
7057 return false;
7058 }
7059
7060 return true;
7061 }
7062
7063 static void add_advertising_complete(struct hci_dev *hdev, u8 status,
7064 u16 opcode)
7065 {
7066 struct mgmt_pending_cmd *cmd;
7067 struct mgmt_cp_add_advertising *cp;
7068 struct mgmt_rp_add_advertising rp;
7069 struct adv_info *adv_instance, *n;
7070 u8 instance;
7071
7072 BT_DBG("status %d", status);
7073
7074 hci_dev_lock(hdev);
7075
7076 cmd = pending_find(MGMT_OP_ADD_ADVERTISING, hdev);
7077
7078 if (status)
7079 hci_dev_clear_flag(hdev, HCI_ADVERTISING_INSTANCE);
7080
7081 list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) {
7082 if (!adv_instance->pending)
7083 continue;
7084
7085 if (!status) {
7086 adv_instance->pending = false;
7087 continue;
7088 }
7089
7090 instance = adv_instance->instance;
7091
7092 if (hdev->cur_adv_instance == instance)
7093 cancel_adv_timeout(hdev);
7094
7095 hci_remove_adv_instance(hdev, instance);
7096 advertising_removed(cmd ? cmd->sk : NULL, hdev, instance);
7097 }
7098
7099 if (!cmd)
7100 goto unlock;
7101
7102 cp = cmd->param;
7103 rp.instance = cp->instance;
7104
7105 if (status)
7106 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
7107 mgmt_status(status));
7108 else
7109 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
7110 mgmt_status(status), &rp, sizeof(rp));
7111
7112 mgmt_pending_remove(cmd);
7113
7114 unlock:
7115 hci_dev_unlock(hdev);
7116 }
7117
7118 void mgmt_adv_timeout_expired(struct hci_dev *hdev)
7119 {
7120 u8 instance;
7121 struct hci_request req;
7122
7123 hdev->adv_instance_timeout = 0;
7124
7125 instance = get_current_adv_instance(hdev);
7126 if (instance == 0x00)
7127 return;
7128
7129 hci_dev_lock(hdev);
7130 hci_req_init(&req, hdev);
7131
7132 clear_adv_instance(hdev, &req, instance, false);
7133
7134 if (list_empty(&hdev->adv_instances))
7135 disable_advertising(&req);
7136
7137 if (!skb_queue_empty(&req.cmd_q))
7138 hci_req_run(&req, NULL);
7139
7140 hci_dev_unlock(hdev);
7141 }
7142
7143 static int add_advertising(struct sock *sk, struct hci_dev *hdev,
7144 void *data, u16 data_len)
7145 {
7146 struct mgmt_cp_add_advertising *cp = data;
7147 struct mgmt_rp_add_advertising rp;
7148 u32 flags;
7149 u32 supported_flags;
7150 u8 status;
7151 u16 timeout, duration;
7152 unsigned int prev_instance_cnt = hdev->adv_instance_cnt;
7153 u8 schedule_instance = 0;
7154 struct adv_info *next_instance;
7155 int err;
7156 struct mgmt_pending_cmd *cmd;
7157 struct hci_request req;
7158
7159 BT_DBG("%s", hdev->name);
7160
7161 status = mgmt_le_support(hdev);
7162 if (status)
7163 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7164 status);
7165
7166 flags = __le32_to_cpu(cp->flags);
7167 timeout = __le16_to_cpu(cp->timeout);
7168 duration = __le16_to_cpu(cp->duration);
7169
7170 /* The current implementation only supports a subset of the specified
7171 * flags.
7172 */
7173 supported_flags = get_supported_adv_flags(hdev);
7174 if (flags & ~supported_flags)
7175 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7176 MGMT_STATUS_INVALID_PARAMS);
7177
7178 hci_dev_lock(hdev);
7179
7180 if (timeout && !hdev_is_powered(hdev)) {
7181 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7182 MGMT_STATUS_REJECTED);
7183 goto unlock;
7184 }
7185
7186 if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
7187 pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
7188 pending_find(MGMT_OP_SET_LE, hdev)) {
7189 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7190 MGMT_STATUS_BUSY);
7191 goto unlock;
7192 }
7193
7194 if (!tlv_data_is_valid(hdev, flags, cp->data, cp->adv_data_len, true) ||
7195 !tlv_data_is_valid(hdev, flags, cp->data + cp->adv_data_len,
7196 cp->scan_rsp_len, false)) {
7197 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7198 MGMT_STATUS_INVALID_PARAMS);
7199 goto unlock;
7200 }
7201
7202 err = hci_add_adv_instance(hdev, cp->instance, flags,
7203 cp->adv_data_len, cp->data,
7204 cp->scan_rsp_len,
7205 cp->data + cp->adv_data_len,
7206 timeout, duration);
7207 if (err < 0) {
7208 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7209 MGMT_STATUS_FAILED);
7210 goto unlock;
7211 }
7212
7213 /* Only trigger an advertising added event if a new instance was
7214 * actually added.
7215 */
7216 if (hdev->adv_instance_cnt > prev_instance_cnt)
7217 advertising_added(sk, hdev, cp->instance);
7218
7219 hci_dev_set_flag(hdev, HCI_ADVERTISING_INSTANCE);
7220
7221 if (hdev->cur_adv_instance == cp->instance) {
7222 /* If the currently advertised instance is being changed then
7223 * cancel the current advertising and schedule the next
7224 * instance. If there is only one instance then the overridden
7225 * advertising data will be visible right away.
7226 */
7227 cancel_adv_timeout(hdev);
7228
7229 next_instance = hci_get_next_instance(hdev, cp->instance);
7230 if (next_instance)
7231 schedule_instance = next_instance->instance;
7232 } else if (!hdev->adv_instance_timeout) {
7233 /* Immediately advertise the new instance if no other
7234 * instance is currently being advertised.
7235 */
7236 schedule_instance = cp->instance;
7237 }
7238
7239 /* If the HCI_ADVERTISING flag is set or the device isn't powered or
7240 * there is no instance to be advertised then we have no HCI
7241 * communication to make. Simply return.
7242 */
7243 if (!hdev_is_powered(hdev) ||
7244 hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
7245 !schedule_instance) {
7246 rp.instance = cp->instance;
7247 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7248 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7249 goto unlock;
7250 }
7251
7252 /* We're good to go, update advertising data, parameters, and start
7253 * advertising.
7254 */
7255 cmd = mgmt_pending_add(sk, MGMT_OP_ADD_ADVERTISING, hdev, data,
7256 data_len);
7257 if (!cmd) {
7258 err = -ENOMEM;
7259 goto unlock;
7260 }
7261
7262 hci_req_init(&req, hdev);
7263
7264 err = schedule_adv_instance(&req, schedule_instance, true);
7265
7266 if (!err)
7267 err = hci_req_run(&req, add_advertising_complete);
7268
7269 if (err < 0)
7270 mgmt_pending_remove(cmd);
7271
7272 unlock:
7273 hci_dev_unlock(hdev);
7274
7275 return err;
7276 }
7277
7278 static void remove_advertising_complete(struct hci_dev *hdev, u8 status,
7279 u16 opcode)
7280 {
7281 struct mgmt_pending_cmd *cmd;
7282 struct mgmt_cp_remove_advertising *cp;
7283 struct mgmt_rp_remove_advertising rp;
7284
7285 BT_DBG("status %d", status);
7286
7287 hci_dev_lock(hdev);
7288
7289 /* A failure status here only means that we failed to disable
7290 * advertising. Otherwise, the advertising instance has been removed,
7291 * so report success.
7292 */
7293 cmd = pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev);
7294 if (!cmd)
7295 goto unlock;
7296
7297 cp = cmd->param;
7298 rp.instance = cp->instance;
7299
7300 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, MGMT_STATUS_SUCCESS,
7301 &rp, sizeof(rp));
7302 mgmt_pending_remove(cmd);
7303
7304 unlock:
7305 hci_dev_unlock(hdev);
7306 }
7307
7308 static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
7309 void *data, u16 data_len)
7310 {
7311 struct mgmt_cp_remove_advertising *cp = data;
7312 struct mgmt_rp_remove_advertising rp;
7313 struct mgmt_pending_cmd *cmd;
7314 struct hci_request req;
7315 int err;
7316
7317 BT_DBG("%s", hdev->name);
7318
7319 hci_dev_lock(hdev);
7320
7321 if (cp->instance && !hci_find_adv_instance(hdev, cp->instance)) {
7322 err = mgmt_cmd_status(sk, hdev->id,
7323 MGMT_OP_REMOVE_ADVERTISING,
7324 MGMT_STATUS_INVALID_PARAMS);
7325 goto unlock;
7326 }
7327
7328 if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
7329 pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
7330 pending_find(MGMT_OP_SET_LE, hdev)) {
7331 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
7332 MGMT_STATUS_BUSY);
7333 goto unlock;
7334 }
7335
7336 if (!hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE)) {
7337 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
7338 MGMT_STATUS_INVALID_PARAMS);
7339 goto unlock;
7340 }
7341
7342 hci_req_init(&req, hdev);
7343
7344 clear_adv_instance(hdev, &req, cp->instance, true);
7345
7346 if (list_empty(&hdev->adv_instances))
7347 disable_advertising(&req);
7348
7349 /* If no HCI commands have been collected so far or the HCI_ADVERTISING
7350 * flag is set or the device isn't powered then we have no HCI
7351 * communication to make. Simply return.
7352 */
7353 if (skb_queue_empty(&req.cmd_q) ||
7354 !hdev_is_powered(hdev) ||
7355 hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
7356 rp.instance = cp->instance;
7357 err = mgmt_cmd_complete(sk, hdev->id,
7358 MGMT_OP_REMOVE_ADVERTISING,
7359 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7360 goto unlock;
7361 }
7362
7363 cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_ADVERTISING, hdev, data,
7364 data_len);
7365 if (!cmd) {
7366 err = -ENOMEM;
7367 goto unlock;
7368 }
7369
7370 err = hci_req_run(&req, remove_advertising_complete);
7371 if (err < 0)
7372 mgmt_pending_remove(cmd);
7373
7374 unlock:
7375 hci_dev_unlock(hdev);
7376
7377 return err;
7378 }
7379
7380 static const struct hci_mgmt_handler mgmt_handlers[] = {
7381 { NULL }, /* 0x0000 (no command) */
7382 { read_version, MGMT_READ_VERSION_SIZE,
7383 HCI_MGMT_NO_HDEV |
7384 HCI_MGMT_UNTRUSTED },
7385 { read_commands, MGMT_READ_COMMANDS_SIZE,
7386 HCI_MGMT_NO_HDEV |
7387 HCI_MGMT_UNTRUSTED },
7388 { read_index_list, MGMT_READ_INDEX_LIST_SIZE,
7389 HCI_MGMT_NO_HDEV |
7390 HCI_MGMT_UNTRUSTED },
7391 { read_controller_info, MGMT_READ_INFO_SIZE,
7392 HCI_MGMT_UNTRUSTED },
7393 { set_powered, MGMT_SETTING_SIZE },
7394 { set_discoverable, MGMT_SET_DISCOVERABLE_SIZE },
7395 { set_connectable, MGMT_SETTING_SIZE },
7396 { set_fast_connectable, MGMT_SETTING_SIZE },
7397 { set_bondable, MGMT_SETTING_SIZE },
7398 { set_link_security, MGMT_SETTING_SIZE },
7399 { set_ssp, MGMT_SETTING_SIZE },
7400 { set_hs, MGMT_SETTING_SIZE },
7401 { set_le, MGMT_SETTING_SIZE },
7402 { set_dev_class, MGMT_SET_DEV_CLASS_SIZE },
7403 { set_local_name, MGMT_SET_LOCAL_NAME_SIZE },
7404 { add_uuid, MGMT_ADD_UUID_SIZE },
7405 { remove_uuid, MGMT_REMOVE_UUID_SIZE },
7406 { load_link_keys, MGMT_LOAD_LINK_KEYS_SIZE,
7407 HCI_MGMT_VAR_LEN },
7408 { load_long_term_keys, MGMT_LOAD_LONG_TERM_KEYS_SIZE,
7409 HCI_MGMT_VAR_LEN },
7410 { disconnect, MGMT_DISCONNECT_SIZE },
7411 { get_connections, MGMT_GET_CONNECTIONS_SIZE },
7412 { pin_code_reply, MGMT_PIN_CODE_REPLY_SIZE },
7413 { pin_code_neg_reply, MGMT_PIN_CODE_NEG_REPLY_SIZE },
7414 { set_io_capability, MGMT_SET_IO_CAPABILITY_SIZE },
7415 { pair_device, MGMT_PAIR_DEVICE_SIZE },
7416 { cancel_pair_device, MGMT_CANCEL_PAIR_DEVICE_SIZE },
7417 { unpair_device, MGMT_UNPAIR_DEVICE_SIZE },
7418 { user_confirm_reply, MGMT_USER_CONFIRM_REPLY_SIZE },
7419 { user_confirm_neg_reply, MGMT_USER_CONFIRM_NEG_REPLY_SIZE },
7420 { user_passkey_reply, MGMT_USER_PASSKEY_REPLY_SIZE },
7421 { user_passkey_neg_reply, MGMT_USER_PASSKEY_NEG_REPLY_SIZE },
7422 { read_local_oob_data, MGMT_READ_LOCAL_OOB_DATA_SIZE },
7423 { add_remote_oob_data, MGMT_ADD_REMOTE_OOB_DATA_SIZE,
7424 HCI_MGMT_VAR_LEN },
7425 { remove_remote_oob_data, MGMT_REMOVE_REMOTE_OOB_DATA_SIZE },
7426 { start_discovery, MGMT_START_DISCOVERY_SIZE },
7427 { stop_discovery, MGMT_STOP_DISCOVERY_SIZE },
7428 { confirm_name, MGMT_CONFIRM_NAME_SIZE },
7429 { block_device, MGMT_BLOCK_DEVICE_SIZE },
7430 { unblock_device, MGMT_UNBLOCK_DEVICE_SIZE },
7431 { set_device_id, MGMT_SET_DEVICE_ID_SIZE },
7432 { set_advertising, MGMT_SETTING_SIZE },
7433 { set_bredr, MGMT_SETTING_SIZE },
7434 { set_static_address, MGMT_SET_STATIC_ADDRESS_SIZE },
7435 { set_scan_params, MGMT_SET_SCAN_PARAMS_SIZE },
7436 { set_secure_conn, MGMT_SETTING_SIZE },
7437 { set_debug_keys, MGMT_SETTING_SIZE },
7438 { set_privacy, MGMT_SET_PRIVACY_SIZE },
7439 { load_irks, MGMT_LOAD_IRKS_SIZE,
7440 HCI_MGMT_VAR_LEN },
7441 { get_conn_info, MGMT_GET_CONN_INFO_SIZE },
7442 { get_clock_info, MGMT_GET_CLOCK_INFO_SIZE },
7443 { add_device, MGMT_ADD_DEVICE_SIZE },
7444 { remove_device, MGMT_REMOVE_DEVICE_SIZE },
7445 { load_conn_param, MGMT_LOAD_CONN_PARAM_SIZE,
7446 HCI_MGMT_VAR_LEN },
7447 { read_unconf_index_list, MGMT_READ_UNCONF_INDEX_LIST_SIZE,
7448 HCI_MGMT_NO_HDEV |
7449 HCI_MGMT_UNTRUSTED },
7450 { read_config_info, MGMT_READ_CONFIG_INFO_SIZE,
7451 HCI_MGMT_UNCONFIGURED |
7452 HCI_MGMT_UNTRUSTED },
7453 { set_external_config, MGMT_SET_EXTERNAL_CONFIG_SIZE,
7454 HCI_MGMT_UNCONFIGURED },
7455 { set_public_address, MGMT_SET_PUBLIC_ADDRESS_SIZE,
7456 HCI_MGMT_UNCONFIGURED },
7457 { start_service_discovery, MGMT_START_SERVICE_DISCOVERY_SIZE,
7458 HCI_MGMT_VAR_LEN },
7459 { read_local_oob_ext_data, MGMT_READ_LOCAL_OOB_EXT_DATA_SIZE },
7460 { read_ext_index_list, MGMT_READ_EXT_INDEX_LIST_SIZE,
7461 HCI_MGMT_NO_HDEV |
7462 HCI_MGMT_UNTRUSTED },
7463 { read_adv_features, MGMT_READ_ADV_FEATURES_SIZE },
7464 { add_advertising, MGMT_ADD_ADVERTISING_SIZE,
7465 HCI_MGMT_VAR_LEN },
7466 { remove_advertising, MGMT_REMOVE_ADVERTISING_SIZE },
7467 };
7468
7469 void mgmt_index_added(struct hci_dev *hdev)
7470 {
7471 struct mgmt_ev_ext_index ev;
7472
7473 if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
7474 return;
7475
7476 switch (hdev->dev_type) {
7477 case HCI_BREDR:
7478 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
7479 mgmt_index_event(MGMT_EV_UNCONF_INDEX_ADDED, hdev,
7480 NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
7481 ev.type = 0x01;
7482 } else {
7483 mgmt_index_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0,
7484 HCI_MGMT_INDEX_EVENTS);
7485 ev.type = 0x00;
7486 }
7487 break;
7488 case HCI_AMP:
7489 ev.type = 0x02;
7490 break;
7491 default:
7492 return;
7493 }
7494
7495 ev.bus = hdev->bus;
7496
7497 mgmt_index_event(MGMT_EV_EXT_INDEX_ADDED, hdev, &ev, sizeof(ev),
7498 HCI_MGMT_EXT_INDEX_EVENTS);
7499 }
7500
7501 void mgmt_index_removed(struct hci_dev *hdev)
7502 {
7503 struct mgmt_ev_ext_index ev;
7504 u8 status = MGMT_STATUS_INVALID_INDEX;
7505
7506 if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
7507 return;
7508
7509 switch (hdev->dev_type) {
7510 case HCI_BREDR:
7511 mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
7512
7513 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
7514 mgmt_index_event(MGMT_EV_UNCONF_INDEX_REMOVED, hdev,
7515 NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
7516 ev.type = 0x01;
7517 } else {
7518 mgmt_index_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0,
7519 HCI_MGMT_INDEX_EVENTS);
7520 ev.type = 0x00;
7521 }
7522 break;
7523 case HCI_AMP:
7524 ev.type = 0x02;
7525 break;
7526 default:
7527 return;
7528 }
7529
7530 ev.bus = hdev->bus;
7531
7532 mgmt_index_event(MGMT_EV_EXT_INDEX_REMOVED, hdev, &ev, sizeof(ev),
7533 HCI_MGMT_EXT_INDEX_EVENTS);
7534 }
7535
7536 /* This function requires the caller holds hdev->lock */
7537 static void restart_le_actions(struct hci_request *req)
7538 {
7539 struct hci_dev *hdev = req->hdev;
7540 struct hci_conn_params *p;
7541
7542 list_for_each_entry(p, &hdev->le_conn_params, list) {
7543 /* Needed for AUTO_OFF case where might not "really"
7544 * have been powered off.
7545 */
7546 list_del_init(&p->action);
7547
7548 switch (p->auto_connect) {
7549 case HCI_AUTO_CONN_DIRECT:
7550 case HCI_AUTO_CONN_ALWAYS:
7551 list_add(&p->action, &hdev->pend_le_conns);
7552 break;
7553 case HCI_AUTO_CONN_REPORT:
7554 list_add(&p->action, &hdev->pend_le_reports);
7555 break;
7556 default:
7557 break;
7558 }
7559 }
7560
7561 __hci_update_background_scan(req);
7562 }
7563
7564 static void powered_complete(struct hci_dev *hdev, u8 status, u16 opcode)
7565 {
7566 struct cmd_lookup match = { NULL, hdev };
7567
7568 BT_DBG("status 0x%02x", status);
7569
7570 if (!status) {
7571 /* Register the available SMP channels (BR/EDR and LE) only
7572 * when successfully powering on the controller. This late
7573 * registration is required so that LE SMP can clearly
7574 * decide if the public address or static address is used.
7575 */
7576 smp_register(hdev);
7577 }
7578
7579 hci_dev_lock(hdev);
7580
7581 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
7582
7583 new_settings(hdev, match.sk);
7584
7585 hci_dev_unlock(hdev);
7586
7587 if (match.sk)
7588 sock_put(match.sk);
7589 }
7590
7591 static int powered_update_hci(struct hci_dev *hdev)
7592 {
7593 struct hci_request req;
7594 struct adv_info *adv_instance;
7595 u8 link_sec;
7596
7597 hci_req_init(&req, hdev);
7598
7599 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
7600 !lmp_host_ssp_capable(hdev)) {
7601 u8 mode = 0x01;
7602
7603 hci_req_add(&req, HCI_OP_WRITE_SSP_MODE, sizeof(mode), &mode);
7604
7605 if (bredr_sc_enabled(hdev) && !lmp_host_sc_capable(hdev)) {
7606 u8 support = 0x01;
7607
7608 hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT,
7609 sizeof(support), &support);
7610 }
7611 }
7612
7613 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
7614 lmp_bredr_capable(hdev)) {
7615 struct hci_cp_write_le_host_supported cp;
7616
7617 cp.le = 0x01;
7618 cp.simul = 0x00;
7619
7620 /* Check first if we already have the right
7621 * host state (host features set)
7622 */
7623 if (cp.le != lmp_host_le_capable(hdev) ||
7624 cp.simul != lmp_host_le_br_capable(hdev))
7625 hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED,
7626 sizeof(cp), &cp);
7627 }
7628
7629 if (lmp_le_capable(hdev)) {
7630 /* Make sure the controller has a good default for
7631 * advertising data. This also applies to the case
7632 * where BR/EDR was toggled during the AUTO_OFF phase.
7633 */
7634 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
7635 (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
7636 !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))) {
7637 update_adv_data(&req);
7638 update_scan_rsp_data(&req);
7639 }
7640
7641 if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
7642 hdev->cur_adv_instance == 0x00 &&
7643 !list_empty(&hdev->adv_instances)) {
7644 adv_instance = list_first_entry(&hdev->adv_instances,
7645 struct adv_info, list);
7646 hdev->cur_adv_instance = adv_instance->instance;
7647 }
7648
7649 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
7650 enable_advertising(&req);
7651 else if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
7652 hdev->cur_adv_instance)
7653 schedule_adv_instance(&req, hdev->cur_adv_instance,
7654 true);
7655
7656 restart_le_actions(&req);
7657 }
7658
7659 link_sec = hci_dev_test_flag(hdev, HCI_LINK_SECURITY);
7660 if (link_sec != test_bit(HCI_AUTH, &hdev->flags))
7661 hci_req_add(&req, HCI_OP_WRITE_AUTH_ENABLE,
7662 sizeof(link_sec), &link_sec);
7663
7664 if (lmp_bredr_capable(hdev)) {
7665 if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
7666 write_fast_connectable(&req, true);
7667 else
7668 write_fast_connectable(&req, false);
7669 __hci_update_page_scan(&req);
7670 update_class(&req);
7671 update_name(&req);
7672 update_eir(&req);
7673 }
7674
7675 return hci_req_run(&req, powered_complete);
7676 }
7677
7678 int mgmt_powered(struct hci_dev *hdev, u8 powered)
7679 {
7680 struct cmd_lookup match = { NULL, hdev };
7681 u8 status, zero_cod[] = { 0, 0, 0 };
7682 int err;
7683
7684 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7685 return 0;
7686
7687 if (powered) {
7688 if (powered_update_hci(hdev) == 0)
7689 return 0;
7690
7691 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp,
7692 &match);
7693 goto new_settings;
7694 }
7695
7696 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
7697
7698 /* If the power off is because of hdev unregistration let
7699 * use the appropriate INVALID_INDEX status. Otherwise use
7700 * NOT_POWERED. We cover both scenarios here since later in
7701 * mgmt_index_removed() any hci_conn callbacks will have already
7702 * been triggered, potentially causing misleading DISCONNECTED
7703 * status responses.
7704 */
7705 if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
7706 status = MGMT_STATUS_INVALID_INDEX;
7707 else
7708 status = MGMT_STATUS_NOT_POWERED;
7709
7710 mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
7711
7712 if (memcmp(hdev->dev_class, zero_cod, sizeof(zero_cod)) != 0)
7713 mgmt_generic_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
7714 zero_cod, sizeof(zero_cod), NULL);
7715
7716 new_settings:
7717 err = new_settings(hdev, match.sk);
7718
7719 if (match.sk)
7720 sock_put(match.sk);
7721
7722 return err;
7723 }
7724
7725 void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
7726 {
7727 struct mgmt_pending_cmd *cmd;
7728 u8 status;
7729
7730 cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
7731 if (!cmd)
7732 return;
7733
7734 if (err == -ERFKILL)
7735 status = MGMT_STATUS_RFKILLED;
7736 else
7737 status = MGMT_STATUS_FAILED;
7738
7739 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
7740
7741 mgmt_pending_remove(cmd);
7742 }
7743
7744 void mgmt_discoverable_timeout(struct hci_dev *hdev)
7745 {
7746 struct hci_request req;
7747
7748 hci_dev_lock(hdev);
7749
7750 /* When discoverable timeout triggers, then just make sure
7751 * the limited discoverable flag is cleared. Even in the case
7752 * of a timeout triggered from general discoverable, it is
7753 * safe to unconditionally clear the flag.
7754 */
7755 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
7756 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
7757
7758 hci_req_init(&req, hdev);
7759 if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
7760 u8 scan = SCAN_PAGE;
7761 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE,
7762 sizeof(scan), &scan);
7763 }
7764 update_class(&req);
7765
7766 /* Advertising instances don't use the global discoverable setting, so
7767 * only update AD if advertising was enabled using Set Advertising.
7768 */
7769 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
7770 update_adv_data(&req);
7771
7772 hci_req_run(&req, NULL);
7773
7774 hdev->discov_timeout = 0;
7775
7776 new_settings(hdev, NULL);
7777
7778 hci_dev_unlock(hdev);
7779 }
7780
7781 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
7782 bool persistent)
7783 {
7784 struct mgmt_ev_new_link_key ev;
7785
7786 memset(&ev, 0, sizeof(ev));
7787
7788 ev.store_hint = persistent;
7789 bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
7790 ev.key.addr.type = BDADDR_BREDR;
7791 ev.key.type = key->type;
7792 memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE);
7793 ev.key.pin_len = key->pin_len;
7794
7795 mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
7796 }
7797
7798 static u8 mgmt_ltk_type(struct smp_ltk *ltk)
7799 {
7800 switch (ltk->type) {
7801 case SMP_LTK:
7802 case SMP_LTK_SLAVE:
7803 if (ltk->authenticated)
7804 return MGMT_LTK_AUTHENTICATED;
7805 return MGMT_LTK_UNAUTHENTICATED;
7806 case SMP_LTK_P256:
7807 if (ltk->authenticated)
7808 return MGMT_LTK_P256_AUTH;
7809 return MGMT_LTK_P256_UNAUTH;
7810 case SMP_LTK_P256_DEBUG:
7811 return MGMT_LTK_P256_DEBUG;
7812 }
7813
7814 return MGMT_LTK_UNAUTHENTICATED;
7815 }
7816
7817 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent)
7818 {
7819 struct mgmt_ev_new_long_term_key ev;
7820
7821 memset(&ev, 0, sizeof(ev));
7822
7823 /* Devices using resolvable or non-resolvable random addresses
7824 * without providing an identity resolving key don't require
7825 * to store long term keys. Their addresses will change the
7826 * next time around.
7827 *
7828 * Only when a remote device provides an identity address
7829 * make sure the long term key is stored. If the remote
7830 * identity is known, the long term keys are internally
7831 * mapped to the identity address. So allow static random
7832 * and public addresses here.
7833 */
7834 if (key->bdaddr_type == ADDR_LE_DEV_RANDOM &&
7835 (key->bdaddr.b[5] & 0xc0) != 0xc0)
7836 ev.store_hint = 0x00;
7837 else
7838 ev.store_hint = persistent;
7839
7840 bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
7841 ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type);
7842 ev.key.type = mgmt_ltk_type(key);
7843 ev.key.enc_size = key->enc_size;
7844 ev.key.ediv = key->ediv;
7845 ev.key.rand = key->rand;
7846
7847 if (key->type == SMP_LTK)
7848 ev.key.master = 1;
7849
7850 /* Make sure we copy only the significant bytes based on the
7851 * encryption key size, and set the rest of the value to zeroes.
7852 */
7853 memcpy(ev.key.val, key->val, key->enc_size);
7854 memset(ev.key.val + key->enc_size, 0,
7855 sizeof(ev.key.val) - key->enc_size);
7856
7857 mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), NULL);
7858 }
7859
7860 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk)
7861 {
7862 struct mgmt_ev_new_irk ev;
7863
7864 memset(&ev, 0, sizeof(ev));
7865
7866 /* For identity resolving keys from devices that are already
7867 * using a public address or static random address, do not
7868 * ask for storing this key. The identity resolving key really
7869 * is only mandatory for devices using resolvable random
7870 * addresses.
7871 *
7872 * Storing all identity resolving keys has the downside that
7873 * they will be also loaded on next boot of they system. More
7874 * identity resolving keys, means more time during scanning is
7875 * needed to actually resolve these addresses.
7876 */
7877 if (bacmp(&irk->rpa, BDADDR_ANY))
7878 ev.store_hint = 0x01;
7879 else
7880 ev.store_hint = 0x00;
7881
7882 bacpy(&ev.rpa, &irk->rpa);
7883 bacpy(&ev.irk.addr.bdaddr, &irk->bdaddr);
7884 ev.irk.addr.type = link_to_bdaddr(LE_LINK, irk->addr_type);
7885 memcpy(ev.irk.val, irk->val, sizeof(irk->val));
7886
7887 mgmt_event(MGMT_EV_NEW_IRK, hdev, &ev, sizeof(ev), NULL);
7888 }
7889
7890 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
7891 bool persistent)
7892 {
7893 struct mgmt_ev_new_csrk ev;
7894
7895 memset(&ev, 0, sizeof(ev));
7896
7897 /* Devices using resolvable or non-resolvable random addresses
7898 * without providing an identity resolving key don't require
7899 * to store signature resolving keys. Their addresses will change
7900 * the next time around.
7901 *
7902 * Only when a remote device provides an identity address
7903 * make sure the signature resolving key is stored. So allow
7904 * static random and public addresses here.
7905 */
7906 if (csrk->bdaddr_type == ADDR_LE_DEV_RANDOM &&
7907 (csrk->bdaddr.b[5] & 0xc0) != 0xc0)
7908 ev.store_hint = 0x00;
7909 else
7910 ev.store_hint = persistent;
7911
7912 bacpy(&ev.key.addr.bdaddr, &csrk->bdaddr);
7913 ev.key.addr.type = link_to_bdaddr(LE_LINK, csrk->bdaddr_type);
7914 ev.key.type = csrk->type;
7915 memcpy(ev.key.val, csrk->val, sizeof(csrk->val));
7916
7917 mgmt_event(MGMT_EV_NEW_CSRK, hdev, &ev, sizeof(ev), NULL);
7918 }
7919
7920 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
7921 u8 bdaddr_type, u8 store_hint, u16 min_interval,
7922 u16 max_interval, u16 latency, u16 timeout)
7923 {
7924 struct mgmt_ev_new_conn_param ev;
7925
7926 if (!hci_is_identity_address(bdaddr, bdaddr_type))
7927 return;
7928
7929 memset(&ev, 0, sizeof(ev));
7930 bacpy(&ev.addr.bdaddr, bdaddr);
7931 ev.addr.type = link_to_bdaddr(LE_LINK, bdaddr_type);
7932 ev.store_hint = store_hint;
7933 ev.min_interval = cpu_to_le16(min_interval);
7934 ev.max_interval = cpu_to_le16(max_interval);
7935 ev.latency = cpu_to_le16(latency);
7936 ev.timeout = cpu_to_le16(timeout);
7937
7938 mgmt_event(MGMT_EV_NEW_CONN_PARAM, hdev, &ev, sizeof(ev), NULL);
7939 }
7940
7941 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
7942 u32 flags, u8 *name, u8 name_len)
7943 {
7944 char buf[512];
7945 struct mgmt_ev_device_connected *ev = (void *) buf;
7946 u16 eir_len = 0;
7947
7948 bacpy(&ev->addr.bdaddr, &conn->dst);
7949 ev->addr.type = link_to_bdaddr(conn->type, conn->dst_type);
7950
7951 ev->flags = __cpu_to_le32(flags);
7952
7953 /* We must ensure that the EIR Data fields are ordered and
7954 * unique. Keep it simple for now and avoid the problem by not
7955 * adding any BR/EDR data to the LE adv.
7956 */
7957 if (conn->le_adv_data_len > 0) {
7958 memcpy(&ev->eir[eir_len],
7959 conn->le_adv_data, conn->le_adv_data_len);
7960 eir_len = conn->le_adv_data_len;
7961 } else {
7962 if (name_len > 0)
7963 eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE,
7964 name, name_len);
7965
7966 if (memcmp(conn->dev_class, "\0\0\0", 3) != 0)
7967 eir_len = eir_append_data(ev->eir, eir_len,
7968 EIR_CLASS_OF_DEV,
7969 conn->dev_class, 3);
7970 }
7971
7972 ev->eir_len = cpu_to_le16(eir_len);
7973
7974 mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
7975 sizeof(*ev) + eir_len, NULL);
7976 }
7977
7978 static void disconnect_rsp(struct mgmt_pending_cmd *cmd, void *data)
7979 {
7980 struct sock **sk = data;
7981
7982 cmd->cmd_complete(cmd, 0);
7983
7984 *sk = cmd->sk;
7985 sock_hold(*sk);
7986
7987 mgmt_pending_remove(cmd);
7988 }
7989
7990 static void unpair_device_rsp(struct mgmt_pending_cmd *cmd, void *data)
7991 {
7992 struct hci_dev *hdev = data;
7993 struct mgmt_cp_unpair_device *cp = cmd->param;
7994
7995 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk);
7996
7997 cmd->cmd_complete(cmd, 0);
7998 mgmt_pending_remove(cmd);
7999 }
8000
8001 bool mgmt_powering_down(struct hci_dev *hdev)
8002 {
8003 struct mgmt_pending_cmd *cmd;
8004 struct mgmt_mode *cp;
8005
8006 cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
8007 if (!cmd)
8008 return false;
8009
8010 cp = cmd->param;
8011 if (!cp->val)
8012 return true;
8013
8014 return false;
8015 }
8016
8017 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
8018 u8 link_type, u8 addr_type, u8 reason,
8019 bool mgmt_connected)
8020 {
8021 struct mgmt_ev_device_disconnected ev;
8022 struct sock *sk = NULL;
8023
8024 /* The connection is still in hci_conn_hash so test for 1
8025 * instead of 0 to know if this is the last one.
8026 */
8027 if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) {
8028 cancel_delayed_work(&hdev->power_off);
8029 queue_work(hdev->req_workqueue, &hdev->power_off.work);
8030 }
8031
8032 if (!mgmt_connected)
8033 return;
8034
8035 if (link_type != ACL_LINK && link_type != LE_LINK)
8036 return;
8037
8038 mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
8039
8040 bacpy(&ev.addr.bdaddr, bdaddr);
8041 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8042 ev.reason = reason;
8043
8044 mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk);
8045
8046 if (sk)
8047 sock_put(sk);
8048
8049 mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
8050 hdev);
8051 }
8052
8053 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
8054 u8 link_type, u8 addr_type, u8 status)
8055 {
8056 u8 bdaddr_type = link_to_bdaddr(link_type, addr_type);
8057 struct mgmt_cp_disconnect *cp;
8058 struct mgmt_pending_cmd *cmd;
8059
8060 mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
8061 hdev);
8062
8063 cmd = pending_find(MGMT_OP_DISCONNECT, hdev);
8064 if (!cmd)
8065 return;
8066
8067 cp = cmd->param;
8068
8069 if (bacmp(bdaddr, &cp->addr.bdaddr))
8070 return;
8071
8072 if (cp->addr.type != bdaddr_type)
8073 return;
8074
8075 cmd->cmd_complete(cmd, mgmt_status(status));
8076 mgmt_pending_remove(cmd);
8077 }
8078
8079 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8080 u8 addr_type, u8 status)
8081 {
8082 struct mgmt_ev_connect_failed ev;
8083
8084 /* The connection is still in hci_conn_hash so test for 1
8085 * instead of 0 to know if this is the last one.
8086 */
8087 if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) {
8088 cancel_delayed_work(&hdev->power_off);
8089 queue_work(hdev->req_workqueue, &hdev->power_off.work);
8090 }
8091
8092 bacpy(&ev.addr.bdaddr, bdaddr);
8093 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8094 ev.status = mgmt_status(status);
8095
8096 mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
8097 }
8098
8099 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
8100 {
8101 struct mgmt_ev_pin_code_request ev;
8102
8103 bacpy(&ev.addr.bdaddr, bdaddr);
8104 ev.addr.type = BDADDR_BREDR;
8105 ev.secure = secure;
8106
8107 mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), NULL);
8108 }
8109
8110 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8111 u8 status)
8112 {
8113 struct mgmt_pending_cmd *cmd;
8114
8115 cmd = pending_find(MGMT_OP_PIN_CODE_REPLY, hdev);
8116 if (!cmd)
8117 return;
8118
8119 cmd->cmd_complete(cmd, mgmt_status(status));
8120 mgmt_pending_remove(cmd);
8121 }
8122
8123 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8124 u8 status)
8125 {
8126 struct mgmt_pending_cmd *cmd;
8127
8128 cmd = pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev);
8129 if (!cmd)
8130 return;
8131
8132 cmd->cmd_complete(cmd, mgmt_status(status));
8133 mgmt_pending_remove(cmd);
8134 }
8135
8136 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
8137 u8 link_type, u8 addr_type, u32 value,
8138 u8 confirm_hint)
8139 {
8140 struct mgmt_ev_user_confirm_request ev;
8141
8142 BT_DBG("%s", hdev->name);
8143
8144 bacpy(&ev.addr.bdaddr, bdaddr);
8145 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8146 ev.confirm_hint = confirm_hint;
8147 ev.value = cpu_to_le32(value);
8148
8149 return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev),
8150 NULL);
8151 }
8152
8153 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
8154 u8 link_type, u8 addr_type)
8155 {
8156 struct mgmt_ev_user_passkey_request ev;
8157
8158 BT_DBG("%s", hdev->name);
8159
8160 bacpy(&ev.addr.bdaddr, bdaddr);
8161 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8162
8163 return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev),
8164 NULL);
8165 }
8166
8167 static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8168 u8 link_type, u8 addr_type, u8 status,
8169 u8 opcode)
8170 {
8171 struct mgmt_pending_cmd *cmd;
8172
8173 cmd = pending_find(opcode, hdev);
8174 if (!cmd)
8175 return -ENOENT;
8176
8177 cmd->cmd_complete(cmd, mgmt_status(status));
8178 mgmt_pending_remove(cmd);
8179
8180 return 0;
8181 }
8182
8183 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8184 u8 link_type, u8 addr_type, u8 status)
8185 {
8186 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8187 status, MGMT_OP_USER_CONFIRM_REPLY);
8188 }
8189
8190 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8191 u8 link_type, u8 addr_type, u8 status)
8192 {
8193 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8194 status,
8195 MGMT_OP_USER_CONFIRM_NEG_REPLY);
8196 }
8197
8198 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8199 u8 link_type, u8 addr_type, u8 status)
8200 {
8201 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8202 status, MGMT_OP_USER_PASSKEY_REPLY);
8203 }
8204
8205 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8206 u8 link_type, u8 addr_type, u8 status)
8207 {
8208 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8209 status,
8210 MGMT_OP_USER_PASSKEY_NEG_REPLY);
8211 }
8212
8213 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
8214 u8 link_type, u8 addr_type, u32 passkey,
8215 u8 entered)
8216 {
8217 struct mgmt_ev_passkey_notify ev;
8218
8219 BT_DBG("%s", hdev->name);
8220
8221 bacpy(&ev.addr.bdaddr, bdaddr);
8222 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8223 ev.passkey = __cpu_to_le32(passkey);
8224 ev.entered = entered;
8225
8226 return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL);
8227 }
8228
8229 void mgmt_auth_failed(struct hci_conn *conn, u8 hci_status)
8230 {
8231 struct mgmt_ev_auth_failed ev;
8232 struct mgmt_pending_cmd *cmd;
8233 u8 status = mgmt_status(hci_status);
8234
8235 bacpy(&ev.addr.bdaddr, &conn->dst);
8236 ev.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
8237 ev.status = status;
8238
8239 cmd = find_pairing(conn);
8240
8241 mgmt_event(MGMT_EV_AUTH_FAILED, conn->hdev, &ev, sizeof(ev),
8242 cmd ? cmd->sk : NULL);
8243
8244 if (cmd) {
8245 cmd->cmd_complete(cmd, status);
8246 mgmt_pending_remove(cmd);
8247 }
8248 }
8249
8250 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
8251 {
8252 struct cmd_lookup match = { NULL, hdev };
8253 bool changed;
8254
8255 if (status) {
8256 u8 mgmt_err = mgmt_status(status);
8257 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev,
8258 cmd_status_rsp, &mgmt_err);
8259 return;
8260 }
8261
8262 if (test_bit(HCI_AUTH, &hdev->flags))
8263 changed = !hci_dev_test_and_set_flag(hdev, HCI_LINK_SECURITY);
8264 else
8265 changed = hci_dev_test_and_clear_flag(hdev, HCI_LINK_SECURITY);
8266
8267 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
8268 &match);
8269
8270 if (changed)
8271 new_settings(hdev, match.sk);
8272
8273 if (match.sk)
8274 sock_put(match.sk);
8275 }
8276
8277 static void clear_eir(struct hci_request *req)
8278 {
8279 struct hci_dev *hdev = req->hdev;
8280 struct hci_cp_write_eir cp;
8281
8282 if (!lmp_ext_inq_capable(hdev))
8283 return;
8284
8285 memset(hdev->eir, 0, sizeof(hdev->eir));
8286
8287 memset(&cp, 0, sizeof(cp));
8288
8289 hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
8290 }
8291
8292 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
8293 {
8294 struct cmd_lookup match = { NULL, hdev };
8295 struct hci_request req;
8296 bool changed = false;
8297
8298 if (status) {
8299 u8 mgmt_err = mgmt_status(status);
8300
8301 if (enable && hci_dev_test_and_clear_flag(hdev,
8302 HCI_SSP_ENABLED)) {
8303 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
8304 new_settings(hdev, NULL);
8305 }
8306
8307 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
8308 &mgmt_err);
8309 return;
8310 }
8311
8312 if (enable) {
8313 changed = !hci_dev_test_and_set_flag(hdev, HCI_SSP_ENABLED);
8314 } else {
8315 changed = hci_dev_test_and_clear_flag(hdev, HCI_SSP_ENABLED);
8316 if (!changed)
8317 changed = hci_dev_test_and_clear_flag(hdev,
8318 HCI_HS_ENABLED);
8319 else
8320 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
8321 }
8322
8323 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
8324
8325 if (changed)
8326 new_settings(hdev, match.sk);
8327
8328 if (match.sk)
8329 sock_put(match.sk);
8330
8331 hci_req_init(&req, hdev);
8332
8333 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
8334 if (hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS))
8335 hci_req_add(&req, HCI_OP_WRITE_SSP_DEBUG_MODE,
8336 sizeof(enable), &enable);
8337 update_eir(&req);
8338 } else {
8339 clear_eir(&req);
8340 }
8341
8342 hci_req_run(&req, NULL);
8343 }
8344
8345 static void sk_lookup(struct mgmt_pending_cmd *cmd, void *data)
8346 {
8347 struct cmd_lookup *match = data;
8348
8349 if (match->sk == NULL) {
8350 match->sk = cmd->sk;
8351 sock_hold(match->sk);
8352 }
8353 }
8354
8355 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
8356 u8 status)
8357 {
8358 struct cmd_lookup match = { NULL, hdev, mgmt_status(status) };
8359
8360 mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, sk_lookup, &match);
8361 mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, sk_lookup, &match);
8362 mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, sk_lookup, &match);
8363
8364 if (!status)
8365 mgmt_generic_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
8366 dev_class, 3, NULL);
8367
8368 if (match.sk)
8369 sock_put(match.sk);
8370 }
8371
8372 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
8373 {
8374 struct mgmt_cp_set_local_name ev;
8375 struct mgmt_pending_cmd *cmd;
8376
8377 if (status)
8378 return;
8379
8380 memset(&ev, 0, sizeof(ev));
8381 memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
8382 memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH);
8383
8384 cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
8385 if (!cmd) {
8386 memcpy(hdev->dev_name, name, sizeof(hdev->dev_name));
8387
8388 /* If this is a HCI command related to powering on the
8389 * HCI dev don't send any mgmt signals.
8390 */
8391 if (pending_find(MGMT_OP_SET_POWERED, hdev))
8392 return;
8393 }
8394
8395 mgmt_generic_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev),
8396 cmd ? cmd->sk : NULL);
8397 }
8398
8399 static inline bool has_uuid(u8 *uuid, u16 uuid_count, u8 (*uuids)[16])
8400 {
8401 int i;
8402
8403 for (i = 0; i < uuid_count; i++) {
8404 if (!memcmp(uuid, uuids[i], 16))
8405 return true;
8406 }
8407
8408 return false;
8409 }
8410
8411 static bool eir_has_uuids(u8 *eir, u16 eir_len, u16 uuid_count, u8 (*uuids)[16])
8412 {
8413 u16 parsed = 0;
8414
8415 while (parsed < eir_len) {
8416 u8 field_len = eir[0];
8417 u8 uuid[16];
8418 int i;
8419
8420 if (field_len == 0)
8421 break;
8422
8423 if (eir_len - parsed < field_len + 1)
8424 break;
8425
8426 switch (eir[1]) {
8427 case EIR_UUID16_ALL:
8428 case EIR_UUID16_SOME:
8429 for (i = 0; i + 3 <= field_len; i += 2) {
8430 memcpy(uuid, bluetooth_base_uuid, 16);
8431 uuid[13] = eir[i + 3];
8432 uuid[12] = eir[i + 2];
8433 if (has_uuid(uuid, uuid_count, uuids))
8434 return true;
8435 }
8436 break;
8437 case EIR_UUID32_ALL:
8438 case EIR_UUID32_SOME:
8439 for (i = 0; i + 5 <= field_len; i += 4) {
8440 memcpy(uuid, bluetooth_base_uuid, 16);
8441 uuid[15] = eir[i + 5];
8442 uuid[14] = eir[i + 4];
8443 uuid[13] = eir[i + 3];
8444 uuid[12] = eir[i + 2];
8445 if (has_uuid(uuid, uuid_count, uuids))
8446 return true;
8447 }
8448 break;
8449 case EIR_UUID128_ALL:
8450 case EIR_UUID128_SOME:
8451 for (i = 0; i + 17 <= field_len; i += 16) {
8452 memcpy(uuid, eir + i + 2, 16);
8453 if (has_uuid(uuid, uuid_count, uuids))
8454 return true;
8455 }
8456 break;
8457 }
8458
8459 parsed += field_len + 1;
8460 eir += field_len + 1;
8461 }
8462
8463 return false;
8464 }
8465
8466 static void restart_le_scan(struct hci_dev *hdev)
8467 {
8468 /* If controller is not scanning we are done. */
8469 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN))
8470 return;
8471
8472 if (time_after(jiffies + DISCOV_LE_RESTART_DELAY,
8473 hdev->discovery.scan_start +
8474 hdev->discovery.scan_duration))
8475 return;
8476
8477 queue_delayed_work(hdev->workqueue, &hdev->le_scan_restart,
8478 DISCOV_LE_RESTART_DELAY);
8479 }
8480
8481 static bool is_filter_match(struct hci_dev *hdev, s8 rssi, u8 *eir,
8482 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
8483 {
8484 /* If a RSSI threshold has been specified, and
8485 * HCI_QUIRK_STRICT_DUPLICATE_FILTER is not set, then all results with
8486 * a RSSI smaller than the RSSI threshold will be dropped. If the quirk
8487 * is set, let it through for further processing, as we might need to
8488 * restart the scan.
8489 *
8490 * For BR/EDR devices (pre 1.2) providing no RSSI during inquiry,
8491 * the results are also dropped.
8492 */
8493 if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
8494 (rssi == HCI_RSSI_INVALID ||
8495 (rssi < hdev->discovery.rssi &&
8496 !test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks))))
8497 return false;
8498
8499 if (hdev->discovery.uuid_count != 0) {
8500 /* If a list of UUIDs is provided in filter, results with no
8501 * matching UUID should be dropped.
8502 */
8503 if (!eir_has_uuids(eir, eir_len, hdev->discovery.uuid_count,
8504 hdev->discovery.uuids) &&
8505 !eir_has_uuids(scan_rsp, scan_rsp_len,
8506 hdev->discovery.uuid_count,
8507 hdev->discovery.uuids))
8508 return false;
8509 }
8510
8511 /* If duplicate filtering does not report RSSI changes, then restart
8512 * scanning to ensure updated result with updated RSSI values.
8513 */
8514 if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks)) {
8515 restart_le_scan(hdev);
8516
8517 /* Validate RSSI value against the RSSI threshold once more. */
8518 if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
8519 rssi < hdev->discovery.rssi)
8520 return false;
8521 }
8522
8523 return true;
8524 }
8525
8526 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8527 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
8528 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
8529 {
8530 char buf[512];
8531 struct mgmt_ev_device_found *ev = (void *)buf;
8532 size_t ev_size;
8533
8534 /* Don't send events for a non-kernel initiated discovery. With
8535 * LE one exception is if we have pend_le_reports > 0 in which
8536 * case we're doing passive scanning and want these events.
8537 */
8538 if (!hci_discovery_active(hdev)) {
8539 if (link_type == ACL_LINK)
8540 return;
8541 if (link_type == LE_LINK && list_empty(&hdev->pend_le_reports))
8542 return;
8543 }
8544
8545 if (hdev->discovery.result_filtering) {
8546 /* We are using service discovery */
8547 if (!is_filter_match(hdev, rssi, eir, eir_len, scan_rsp,
8548 scan_rsp_len))
8549 return;
8550 }
8551
8552 /* Make sure that the buffer is big enough. The 5 extra bytes
8553 * are for the potential CoD field.
8554 */
8555 if (sizeof(*ev) + eir_len + scan_rsp_len + 5 > sizeof(buf))
8556 return;
8557
8558 memset(buf, 0, sizeof(buf));
8559
8560 /* In case of device discovery with BR/EDR devices (pre 1.2), the
8561 * RSSI value was reported as 0 when not available. This behavior
8562 * is kept when using device discovery. This is required for full
8563 * backwards compatibility with the API.
8564 *
8565 * However when using service discovery, the value 127 will be
8566 * returned when the RSSI is not available.
8567 */
8568 if (rssi == HCI_RSSI_INVALID && !hdev->discovery.report_invalid_rssi &&
8569 link_type == ACL_LINK)
8570 rssi = 0;
8571
8572 bacpy(&ev->addr.bdaddr, bdaddr);
8573 ev->addr.type = link_to_bdaddr(link_type, addr_type);
8574 ev->rssi = rssi;
8575 ev->flags = cpu_to_le32(flags);
8576
8577 if (eir_len > 0)
8578 /* Copy EIR or advertising data into event */
8579 memcpy(ev->eir, eir, eir_len);
8580
8581 if (dev_class && !eir_has_data_type(ev->eir, eir_len, EIR_CLASS_OF_DEV))
8582 eir_len = eir_append_data(ev->eir, eir_len, EIR_CLASS_OF_DEV,
8583 dev_class, 3);
8584
8585 if (scan_rsp_len > 0)
8586 /* Append scan response data to event */
8587 memcpy(ev->eir + eir_len, scan_rsp, scan_rsp_len);
8588
8589 ev->eir_len = cpu_to_le16(eir_len + scan_rsp_len);
8590 ev_size = sizeof(*ev) + eir_len + scan_rsp_len;
8591
8592 mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
8593 }
8594
8595 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8596 u8 addr_type, s8 rssi, u8 *name, u8 name_len)
8597 {
8598 struct mgmt_ev_device_found *ev;
8599 char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2];
8600 u16 eir_len;
8601
8602 ev = (struct mgmt_ev_device_found *) buf;
8603
8604 memset(buf, 0, sizeof(buf));
8605
8606 bacpy(&ev->addr.bdaddr, bdaddr);
8607 ev->addr.type = link_to_bdaddr(link_type, addr_type);
8608 ev->rssi = rssi;
8609
8610 eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE, name,
8611 name_len);
8612
8613 ev->eir_len = cpu_to_le16(eir_len);
8614
8615 mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, sizeof(*ev) + eir_len, NULL);
8616 }
8617
8618 void mgmt_discovering(struct hci_dev *hdev, u8 discovering)
8619 {
8620 struct mgmt_ev_discovering ev;
8621
8622 BT_DBG("%s discovering %u", hdev->name, discovering);
8623
8624 memset(&ev, 0, sizeof(ev));
8625 ev.type = hdev->discovery.type;
8626 ev.discovering = discovering;
8627
8628 mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
8629 }
8630
8631 static void adv_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
8632 {
8633 BT_DBG("%s status %u", hdev->name, status);
8634 }
8635
8636 void mgmt_reenable_advertising(struct hci_dev *hdev)
8637 {
8638 struct hci_request req;
8639 u8 instance;
8640
8641 if (!hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
8642 !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
8643 return;
8644
8645 instance = get_current_adv_instance(hdev);
8646
8647 hci_req_init(&req, hdev);
8648
8649 if (instance) {
8650 schedule_adv_instance(&req, instance, true);
8651 } else {
8652 update_adv_data(&req);
8653 update_scan_rsp_data(&req);
8654 enable_advertising(&req);
8655 }
8656
8657 hci_req_run(&req, adv_enable_complete);
8658 }
8659
8660 static struct hci_mgmt_chan chan = {
8661 .channel = HCI_CHANNEL_CONTROL,
8662 .handler_count = ARRAY_SIZE(mgmt_handlers),
8663 .handlers = mgmt_handlers,
8664 .hdev_init = mgmt_init_hdev,
8665 };
8666
8667 int mgmt_init(void)
8668 {
8669 return hci_mgmt_chan_register(&chan);
8670 }
8671
8672 void mgmt_exit(void)
8673 {
8674 hci_mgmt_chan_unregister(&chan);
8675 }
Linux kernel - Deliverables
This page took 0.210223 seconds and 5 git commands to generate.