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Bluetooth: mgmt: program multi-adv on power on
[mirror_ubuntu-zesty-kernel.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 9
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(hdev, &cp->addr.bdaddr, addr_type,
3568 sec_level, HCI_LE_CONN_TIMEOUT,
3569 HCI_ROLE_MASTER);
3570 }
3571
3572 if (IS_ERR(conn)) {
3573 int status;
3574
3575 if (PTR_ERR(conn) == -EBUSY)
3576 status = MGMT_STATUS_BUSY;
3577 else if (PTR_ERR(conn) == -EOPNOTSUPP)
3578 status = MGMT_STATUS_NOT_SUPPORTED;
3579 else if (PTR_ERR(conn) == -ECONNREFUSED)
3580 status = MGMT_STATUS_REJECTED;
3581 else
3582 status = MGMT_STATUS_CONNECT_FAILED;
3583
3584 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3585 status, &rp, sizeof(rp));
3586 goto unlock;
3587 }
3588
3589 if (conn->connect_cfm_cb) {
3590 hci_conn_drop(conn);
3591 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3592 MGMT_STATUS_BUSY, &rp, sizeof(rp));
3593 goto unlock;
3594 }
3595
3596 cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len);
3597 if (!cmd) {
3598 err = -ENOMEM;
3599 hci_conn_drop(conn);
3600 goto unlock;
3601 }
3602
3603 cmd->cmd_complete = pairing_complete;
3604
3605 /* For LE, just connecting isn't a proof that the pairing finished */
3606 if (cp->addr.type == BDADDR_BREDR) {
3607 conn->connect_cfm_cb = pairing_complete_cb;
3608 conn->security_cfm_cb = pairing_complete_cb;
3609 conn->disconn_cfm_cb = pairing_complete_cb;
3610 } else {
3611 conn->connect_cfm_cb = le_pairing_complete_cb;
3612 conn->security_cfm_cb = le_pairing_complete_cb;
3613 conn->disconn_cfm_cb = le_pairing_complete_cb;
3614 }
3615
3616 conn->io_capability = cp->io_cap;
3617 cmd->user_data = hci_conn_get(conn);
3618
3619 if ((conn->state == BT_CONNECTED || conn->state == BT_CONFIG) &&
3620 hci_conn_security(conn, sec_level, auth_type, true)) {
3621 cmd->cmd_complete(cmd, 0);
3622 mgmt_pending_remove(cmd);
3623 }
3624
3625 err = 0;
3626
3627 unlock:
3628 hci_dev_unlock(hdev);
3629 return err;
3630 }
3631
3632 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3633 u16 len)
3634 {
3635 struct mgmt_addr_info *addr = data;
3636 struct mgmt_pending_cmd *cmd;
3637 struct hci_conn *conn;
3638 int err;
3639
3640 BT_DBG("");
3641
3642 hci_dev_lock(hdev);
3643
3644 if (!hdev_is_powered(hdev)) {
3645 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3646 MGMT_STATUS_NOT_POWERED);
3647 goto unlock;
3648 }
3649
3650 cmd = pending_find(MGMT_OP_PAIR_DEVICE, hdev);
3651 if (!cmd) {
3652 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3653 MGMT_STATUS_INVALID_PARAMS);
3654 goto unlock;
3655 }
3656
3657 conn = cmd->user_data;
3658
3659 if (bacmp(&addr->bdaddr, &conn->dst) != 0) {
3660 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3661 MGMT_STATUS_INVALID_PARAMS);
3662 goto unlock;
3663 }
3664
3665 cmd->cmd_complete(cmd, MGMT_STATUS_CANCELLED);
3666 mgmt_pending_remove(cmd);
3667
3668 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0,
3669 addr, sizeof(*addr));
3670 unlock:
3671 hci_dev_unlock(hdev);
3672 return err;
3673 }
3674
3675 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
3676 struct mgmt_addr_info *addr, u16 mgmt_op,
3677 u16 hci_op, __le32 passkey)
3678 {
3679 struct mgmt_pending_cmd *cmd;
3680 struct hci_conn *conn;
3681 int err;
3682
3683 hci_dev_lock(hdev);
3684
3685 if (!hdev_is_powered(hdev)) {
3686 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3687 MGMT_STATUS_NOT_POWERED, addr,
3688 sizeof(*addr));
3689 goto done;
3690 }
3691
3692 if (addr->type == BDADDR_BREDR)
3693 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &addr->bdaddr);
3694 else
3695 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &addr->bdaddr);
3696
3697 if (!conn) {
3698 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3699 MGMT_STATUS_NOT_CONNECTED, addr,
3700 sizeof(*addr));
3701 goto done;
3702 }
3703
3704 if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
3705 err = smp_user_confirm_reply(conn, mgmt_op, passkey);
3706 if (!err)
3707 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3708 MGMT_STATUS_SUCCESS, addr,
3709 sizeof(*addr));
3710 else
3711 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3712 MGMT_STATUS_FAILED, addr,
3713 sizeof(*addr));
3714
3715 goto done;
3716 }
3717
3718 cmd = mgmt_pending_add(sk, mgmt_op, hdev, addr, sizeof(*addr));
3719 if (!cmd) {
3720 err = -ENOMEM;
3721 goto done;
3722 }
3723
3724 cmd->cmd_complete = addr_cmd_complete;
3725
3726 /* Continue with pairing via HCI */
3727 if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
3728 struct hci_cp_user_passkey_reply cp;
3729
3730 bacpy(&cp.bdaddr, &addr->bdaddr);
3731 cp.passkey = passkey;
3732 err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
3733 } else
3734 err = hci_send_cmd(hdev, hci_op, sizeof(addr->bdaddr),
3735 &addr->bdaddr);
3736
3737 if (err < 0)
3738 mgmt_pending_remove(cmd);
3739
3740 done:
3741 hci_dev_unlock(hdev);
3742 return err;
3743 }
3744
3745 static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3746 void *data, u16 len)
3747 {
3748 struct mgmt_cp_pin_code_neg_reply *cp = data;
3749
3750 BT_DBG("");
3751
3752 return user_pairing_resp(sk, hdev, &cp->addr,
3753 MGMT_OP_PIN_CODE_NEG_REPLY,
3754 HCI_OP_PIN_CODE_NEG_REPLY, 0);
3755 }
3756
3757 static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3758 u16 len)
3759 {
3760 struct mgmt_cp_user_confirm_reply *cp = data;
3761
3762 BT_DBG("");
3763
3764 if (len != sizeof(*cp))
3765 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
3766 MGMT_STATUS_INVALID_PARAMS);
3767
3768 return user_pairing_resp(sk, hdev, &cp->addr,
3769 MGMT_OP_USER_CONFIRM_REPLY,
3770 HCI_OP_USER_CONFIRM_REPLY, 0);
3771 }
3772
3773 static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
3774 void *data, u16 len)
3775 {
3776 struct mgmt_cp_user_confirm_neg_reply *cp = data;
3777
3778 BT_DBG("");
3779
3780 return user_pairing_resp(sk, hdev, &cp->addr,
3781 MGMT_OP_USER_CONFIRM_NEG_REPLY,
3782 HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
3783 }
3784
3785 static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3786 u16 len)
3787 {
3788 struct mgmt_cp_user_passkey_reply *cp = data;
3789
3790 BT_DBG("");
3791
3792 return user_pairing_resp(sk, hdev, &cp->addr,
3793 MGMT_OP_USER_PASSKEY_REPLY,
3794 HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
3795 }
3796
3797 static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
3798 void *data, u16 len)
3799 {
3800 struct mgmt_cp_user_passkey_neg_reply *cp = data;
3801
3802 BT_DBG("");
3803
3804 return user_pairing_resp(sk, hdev, &cp->addr,
3805 MGMT_OP_USER_PASSKEY_NEG_REPLY,
3806 HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
3807 }
3808
3809 static void update_name(struct hci_request *req)
3810 {
3811 struct hci_dev *hdev = req->hdev;
3812 struct hci_cp_write_local_name cp;
3813
3814 memcpy(cp.name, hdev->dev_name, sizeof(cp.name));
3815
3816 hci_req_add(req, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp);
3817 }
3818
3819 static void set_name_complete(struct hci_dev *hdev, u8 status, u16 opcode)
3820 {
3821 struct mgmt_cp_set_local_name *cp;
3822 struct mgmt_pending_cmd *cmd;
3823
3824 BT_DBG("status 0x%02x", status);
3825
3826 hci_dev_lock(hdev);
3827
3828 cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
3829 if (!cmd)
3830 goto unlock;
3831
3832 cp = cmd->param;
3833
3834 if (status)
3835 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
3836 mgmt_status(status));
3837 else
3838 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3839 cp, sizeof(*cp));
3840
3841 mgmt_pending_remove(cmd);
3842
3843 unlock:
3844 hci_dev_unlock(hdev);
3845 }
3846
3847 static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
3848 u16 len)
3849 {
3850 struct mgmt_cp_set_local_name *cp = data;
3851 struct mgmt_pending_cmd *cmd;
3852 struct hci_request req;
3853 int err;
3854
3855 BT_DBG("");
3856
3857 hci_dev_lock(hdev);
3858
3859 /* If the old values are the same as the new ones just return a
3860 * direct command complete event.
3861 */
3862 if (!memcmp(hdev->dev_name, cp->name, sizeof(hdev->dev_name)) &&
3863 !memcmp(hdev->short_name, cp->short_name,
3864 sizeof(hdev->short_name))) {
3865 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3866 data, len);
3867 goto failed;
3868 }
3869
3870 memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
3871
3872 if (!hdev_is_powered(hdev)) {
3873 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3874
3875 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3876 data, len);
3877 if (err < 0)
3878 goto failed;
3879
3880 err = mgmt_generic_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev,
3881 data, len, sk);
3882
3883 goto failed;
3884 }
3885
3886 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len);
3887 if (!cmd) {
3888 err = -ENOMEM;
3889 goto failed;
3890 }
3891
3892 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3893
3894 hci_req_init(&req, hdev);
3895
3896 if (lmp_bredr_capable(hdev)) {
3897 update_name(&req);
3898 update_eir(&req);
3899 }
3900
3901 /* The name is stored in the scan response data and so
3902 * no need to udpate the advertising data here.
3903 */
3904 if (lmp_le_capable(hdev))
3905 update_scan_rsp_data(&req);
3906
3907 err = hci_req_run(&req, set_name_complete);
3908 if (err < 0)
3909 mgmt_pending_remove(cmd);
3910
3911 failed:
3912 hci_dev_unlock(hdev);
3913 return err;
3914 }
3915
3916 static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status,
3917 u16 opcode, struct sk_buff *skb)
3918 {
3919 struct mgmt_rp_read_local_oob_data mgmt_rp;
3920 size_t rp_size = sizeof(mgmt_rp);
3921 struct mgmt_pending_cmd *cmd;
3922
3923 BT_DBG("%s status %u", hdev->name, status);
3924
3925 cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev);
3926 if (!cmd)
3927 return;
3928
3929 if (status || !skb) {
3930 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3931 status ? mgmt_status(status) : MGMT_STATUS_FAILED);
3932 goto remove;
3933 }
3934
3935 memset(&mgmt_rp, 0, sizeof(mgmt_rp));
3936
3937 if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
3938 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
3939
3940 if (skb->len < sizeof(*rp)) {
3941 mgmt_cmd_status(cmd->sk, hdev->id,
3942 MGMT_OP_READ_LOCAL_OOB_DATA,
3943 MGMT_STATUS_FAILED);
3944 goto remove;
3945 }
3946
3947 memcpy(mgmt_rp.hash192, rp->hash, sizeof(rp->hash));
3948 memcpy(mgmt_rp.rand192, rp->rand, sizeof(rp->rand));
3949
3950 rp_size -= sizeof(mgmt_rp.hash256) + sizeof(mgmt_rp.rand256);
3951 } else {
3952 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
3953
3954 if (skb->len < sizeof(*rp)) {
3955 mgmt_cmd_status(cmd->sk, hdev->id,
3956 MGMT_OP_READ_LOCAL_OOB_DATA,
3957 MGMT_STATUS_FAILED);
3958 goto remove;
3959 }
3960
3961 memcpy(mgmt_rp.hash192, rp->hash192, sizeof(rp->hash192));
3962 memcpy(mgmt_rp.rand192, rp->rand192, sizeof(rp->rand192));
3963
3964 memcpy(mgmt_rp.hash256, rp->hash256, sizeof(rp->hash256));
3965 memcpy(mgmt_rp.rand256, rp->rand256, sizeof(rp->rand256));
3966 }
3967
3968 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3969 MGMT_STATUS_SUCCESS, &mgmt_rp, rp_size);
3970
3971 remove:
3972 mgmt_pending_remove(cmd);
3973 }
3974
3975 static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
3976 void *data, u16 data_len)
3977 {
3978 struct mgmt_pending_cmd *cmd;
3979 struct hci_request req;
3980 int err;
3981
3982 BT_DBG("%s", hdev->name);
3983
3984 hci_dev_lock(hdev);
3985
3986 if (!hdev_is_powered(hdev)) {
3987 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3988 MGMT_STATUS_NOT_POWERED);
3989 goto unlock;
3990 }
3991
3992 if (!lmp_ssp_capable(hdev)) {
3993 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
3994 MGMT_STATUS_NOT_SUPPORTED);
3995 goto unlock;
3996 }
3997
3998 if (pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
3999 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
4000 MGMT_STATUS_BUSY);
4001 goto unlock;
4002 }
4003
4004 cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
4005 if (!cmd) {
4006 err = -ENOMEM;
4007 goto unlock;
4008 }
4009
4010 hci_req_init(&req, hdev);
4011
4012 if (bredr_sc_enabled(hdev))
4013 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
4014 else
4015 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
4016
4017 err = hci_req_run_skb(&req, read_local_oob_data_complete);
4018 if (err < 0)
4019 mgmt_pending_remove(cmd);
4020
4021 unlock:
4022 hci_dev_unlock(hdev);
4023 return err;
4024 }
4025
4026 static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
4027 void *data, u16 len)
4028 {
4029 struct mgmt_addr_info *addr = data;
4030 int err;
4031
4032 BT_DBG("%s ", hdev->name);
4033
4034 if (!bdaddr_type_is_valid(addr->type))
4035 return mgmt_cmd_complete(sk, hdev->id,
4036 MGMT_OP_ADD_REMOTE_OOB_DATA,
4037 MGMT_STATUS_INVALID_PARAMS,
4038 addr, sizeof(*addr));
4039
4040 hci_dev_lock(hdev);
4041
4042 if (len == MGMT_ADD_REMOTE_OOB_DATA_SIZE) {
4043 struct mgmt_cp_add_remote_oob_data *cp = data;
4044 u8 status;
4045
4046 if (cp->addr.type != BDADDR_BREDR) {
4047 err = mgmt_cmd_complete(sk, hdev->id,
4048 MGMT_OP_ADD_REMOTE_OOB_DATA,
4049 MGMT_STATUS_INVALID_PARAMS,
4050 &cp->addr, sizeof(cp->addr));
4051 goto unlock;
4052 }
4053
4054 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
4055 cp->addr.type, cp->hash,
4056 cp->rand, NULL, NULL);
4057 if (err < 0)
4058 status = MGMT_STATUS_FAILED;
4059 else
4060 status = MGMT_STATUS_SUCCESS;
4061
4062 err = mgmt_cmd_complete(sk, hdev->id,
4063 MGMT_OP_ADD_REMOTE_OOB_DATA, status,
4064 &cp->addr, sizeof(cp->addr));
4065 } else if (len == MGMT_ADD_REMOTE_OOB_EXT_DATA_SIZE) {
4066 struct mgmt_cp_add_remote_oob_ext_data *cp = data;
4067 u8 *rand192, *hash192, *rand256, *hash256;
4068 u8 status;
4069
4070 if (bdaddr_type_is_le(cp->addr.type)) {
4071 /* Enforce zero-valued 192-bit parameters as
4072 * long as legacy SMP OOB isn't implemented.
4073 */
4074 if (memcmp(cp->rand192, ZERO_KEY, 16) ||
4075 memcmp(cp->hash192, ZERO_KEY, 16)) {
4076 err = mgmt_cmd_complete(sk, hdev->id,
4077 MGMT_OP_ADD_REMOTE_OOB_DATA,
4078 MGMT_STATUS_INVALID_PARAMS,
4079 addr, sizeof(*addr));
4080 goto unlock;
4081 }
4082
4083 rand192 = NULL;
4084 hash192 = NULL;
4085 } else {
4086 /* In case one of the P-192 values is set to zero,
4087 * then just disable OOB data for P-192.
4088 */
4089 if (!memcmp(cp->rand192, ZERO_KEY, 16) ||
4090 !memcmp(cp->hash192, ZERO_KEY, 16)) {
4091 rand192 = NULL;
4092 hash192 = NULL;
4093 } else {
4094 rand192 = cp->rand192;
4095 hash192 = cp->hash192;
4096 }
4097 }
4098
4099 /* In case one of the P-256 values is set to zero, then just
4100 * disable OOB data for P-256.
4101 */
4102 if (!memcmp(cp->rand256, ZERO_KEY, 16) ||
4103 !memcmp(cp->hash256, ZERO_KEY, 16)) {
4104 rand256 = NULL;
4105 hash256 = NULL;
4106 } else {
4107 rand256 = cp->rand256;
4108 hash256 = cp->hash256;
4109 }
4110
4111 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
4112 cp->addr.type, hash192, rand192,
4113 hash256, rand256);
4114 if (err < 0)
4115 status = MGMT_STATUS_FAILED;
4116 else
4117 status = MGMT_STATUS_SUCCESS;
4118
4119 err = mgmt_cmd_complete(sk, hdev->id,
4120 MGMT_OP_ADD_REMOTE_OOB_DATA,
4121 status, &cp->addr, sizeof(cp->addr));
4122 } else {
4123 BT_ERR("add_remote_oob_data: invalid length of %u bytes", len);
4124 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA,
4125 MGMT_STATUS_INVALID_PARAMS);
4126 }
4127
4128 unlock:
4129 hci_dev_unlock(hdev);
4130 return err;
4131 }
4132
4133 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
4134 void *data, u16 len)
4135 {
4136 struct mgmt_cp_remove_remote_oob_data *cp = data;
4137 u8 status;
4138 int err;
4139
4140 BT_DBG("%s", hdev->name);
4141
4142 if (cp->addr.type != BDADDR_BREDR)
4143 return mgmt_cmd_complete(sk, hdev->id,
4144 MGMT_OP_REMOVE_REMOTE_OOB_DATA,
4145 MGMT_STATUS_INVALID_PARAMS,
4146 &cp->addr, sizeof(cp->addr));
4147
4148 hci_dev_lock(hdev);
4149
4150 if (!bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
4151 hci_remote_oob_data_clear(hdev);
4152 status = MGMT_STATUS_SUCCESS;
4153 goto done;
4154 }
4155
4156 err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr, cp->addr.type);
4157 if (err < 0)
4158 status = MGMT_STATUS_INVALID_PARAMS;
4159 else
4160 status = MGMT_STATUS_SUCCESS;
4161
4162 done:
4163 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
4164 status, &cp->addr, sizeof(cp->addr));
4165
4166 hci_dev_unlock(hdev);
4167 return err;
4168 }
4169
4170 static bool trigger_bredr_inquiry(struct hci_request *req, u8 *status)
4171 {
4172 struct hci_dev *hdev = req->hdev;
4173 struct hci_cp_inquiry cp;
4174 /* General inquiry access code (GIAC) */
4175 u8 lap[3] = { 0x33, 0x8b, 0x9e };
4176
4177 *status = mgmt_bredr_support(hdev);
4178 if (*status)
4179 return false;
4180
4181 if (hci_dev_test_flag(hdev, HCI_INQUIRY)) {
4182 *status = MGMT_STATUS_BUSY;
4183 return false;
4184 }
4185
4186 hci_inquiry_cache_flush(hdev);
4187
4188 memset(&cp, 0, sizeof(cp));
4189 memcpy(&cp.lap, lap, sizeof(cp.lap));
4190 cp.length = DISCOV_BREDR_INQUIRY_LEN;
4191
4192 hci_req_add(req, HCI_OP_INQUIRY, sizeof(cp), &cp);
4193
4194 return true;
4195 }
4196
4197 static bool trigger_le_scan(struct hci_request *req, u16 interval, u8 *status)
4198 {
4199 struct hci_dev *hdev = req->hdev;
4200 struct hci_cp_le_set_scan_param param_cp;
4201 struct hci_cp_le_set_scan_enable enable_cp;
4202 u8 own_addr_type;
4203 int err;
4204
4205 *status = mgmt_le_support(hdev);
4206 if (*status)
4207 return false;
4208
4209 if (hci_dev_test_flag(hdev, HCI_LE_ADV)) {
4210 /* Don't let discovery abort an outgoing connection attempt
4211 * that's using directed advertising.
4212 */
4213 if (hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT)) {
4214 *status = MGMT_STATUS_REJECTED;
4215 return false;
4216 }
4217
4218 disable_advertising(req);
4219 }
4220
4221 /* If controller is scanning, it means the background scanning is
4222 * running. Thus, we should temporarily stop it in order to set the
4223 * discovery scanning parameters.
4224 */
4225 if (hci_dev_test_flag(hdev, HCI_LE_SCAN))
4226 hci_req_add_le_scan_disable(req);
4227
4228 /* All active scans will be done with either a resolvable private
4229 * address (when privacy feature has been enabled) or non-resolvable
4230 * private address.
4231 */
4232 err = hci_update_random_address(req, true, &own_addr_type);
4233 if (err < 0) {
4234 *status = MGMT_STATUS_FAILED;
4235 return false;
4236 }
4237
4238 memset(&param_cp, 0, sizeof(param_cp));
4239 param_cp.type = LE_SCAN_ACTIVE;
4240 param_cp.interval = cpu_to_le16(interval);
4241 param_cp.window = cpu_to_le16(DISCOV_LE_SCAN_WIN);
4242 param_cp.own_address_type = own_addr_type;
4243
4244 hci_req_add(req, HCI_OP_LE_SET_SCAN_PARAM, sizeof(param_cp),
4245 &param_cp);
4246
4247 memset(&enable_cp, 0, sizeof(enable_cp));
4248 enable_cp.enable = LE_SCAN_ENABLE;
4249 enable_cp.filter_dup = LE_SCAN_FILTER_DUP_ENABLE;
4250
4251 hci_req_add(req, HCI_OP_LE_SET_SCAN_ENABLE, sizeof(enable_cp),
4252 &enable_cp);
4253
4254 return true;
4255 }
4256
4257 static bool trigger_discovery(struct hci_request *req, u8 *status)
4258 {
4259 struct hci_dev *hdev = req->hdev;
4260
4261 switch (hdev->discovery.type) {
4262 case DISCOV_TYPE_BREDR:
4263 if (!trigger_bredr_inquiry(req, status))
4264 return false;
4265 break;
4266
4267 case DISCOV_TYPE_INTERLEAVED:
4268 if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY,
4269 &hdev->quirks)) {
4270 /* During simultaneous discovery, we double LE scan
4271 * interval. We must leave some time for the controller
4272 * to do BR/EDR inquiry.
4273 */
4274 if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT * 2,
4275 status))
4276 return false;
4277
4278 if (!trigger_bredr_inquiry(req, status))
4279 return false;
4280
4281 return true;
4282 }
4283
4284 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
4285 *status = MGMT_STATUS_NOT_SUPPORTED;
4286 return false;
4287 }
4288 /* fall through */
4289
4290 case DISCOV_TYPE_LE:
4291 if (!trigger_le_scan(req, DISCOV_LE_SCAN_INT, status))
4292 return false;
4293 break;
4294
4295 default:
4296 *status = MGMT_STATUS_INVALID_PARAMS;
4297 return false;
4298 }
4299
4300 return true;
4301 }
4302
4303 static void start_discovery_complete(struct hci_dev *hdev, u8 status,
4304 u16 opcode)
4305 {
4306 struct mgmt_pending_cmd *cmd;
4307 unsigned long timeout;
4308
4309 BT_DBG("status %d", status);
4310
4311 hci_dev_lock(hdev);
4312
4313 cmd = pending_find(MGMT_OP_START_DISCOVERY, hdev);
4314 if (!cmd)
4315 cmd = pending_find(MGMT_OP_START_SERVICE_DISCOVERY, hdev);
4316
4317 if (cmd) {
4318 cmd->cmd_complete(cmd, mgmt_status(status));
4319 mgmt_pending_remove(cmd);
4320 }
4321
4322 if (status) {
4323 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4324 goto unlock;
4325 }
4326
4327 hci_discovery_set_state(hdev, DISCOVERY_FINDING);
4328
4329 /* If the scan involves LE scan, pick proper timeout to schedule
4330 * hdev->le_scan_disable that will stop it.
4331 */
4332 switch (hdev->discovery.type) {
4333 case DISCOV_TYPE_LE:
4334 timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT);
4335 break;
4336 case DISCOV_TYPE_INTERLEAVED:
4337 /* When running simultaneous discovery, the LE scanning time
4338 * should occupy the whole discovery time sine BR/EDR inquiry
4339 * and LE scanning are scheduled by the controller.
4340 *
4341 * For interleaving discovery in comparison, BR/EDR inquiry
4342 * and LE scanning are done sequentially with separate
4343 * timeouts.
4344 */
4345 if (test_bit(HCI_QUIRK_SIMULTANEOUS_DISCOVERY, &hdev->quirks))
4346 timeout = msecs_to_jiffies(DISCOV_LE_TIMEOUT);
4347 else
4348 timeout = msecs_to_jiffies(hdev->discov_interleaved_timeout);
4349 break;
4350 case DISCOV_TYPE_BREDR:
4351 timeout = 0;
4352 break;
4353 default:
4354 BT_ERR("Invalid discovery type %d", hdev->discovery.type);
4355 timeout = 0;
4356 break;
4357 }
4358
4359 if (timeout) {
4360 /* When service discovery is used and the controller has
4361 * a strict duplicate filter, it is important to remember
4362 * the start and duration of the scan. This is required
4363 * for restarting scanning during the discovery phase.
4364 */
4365 if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER,
4366 &hdev->quirks) &&
4367 hdev->discovery.result_filtering) {
4368 hdev->discovery.scan_start = jiffies;
4369 hdev->discovery.scan_duration = timeout;
4370 }
4371
4372 queue_delayed_work(hdev->workqueue,
4373 &hdev->le_scan_disable, timeout);
4374 }
4375
4376 unlock:
4377 hci_dev_unlock(hdev);
4378 }
4379
4380 static int start_discovery(struct sock *sk, struct hci_dev *hdev,
4381 void *data, u16 len)
4382 {
4383 struct mgmt_cp_start_discovery *cp = data;
4384 struct mgmt_pending_cmd *cmd;
4385 struct hci_request req;
4386 u8 status;
4387 int err;
4388
4389 BT_DBG("%s", hdev->name);
4390
4391 hci_dev_lock(hdev);
4392
4393 if (!hdev_is_powered(hdev)) {
4394 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4395 MGMT_STATUS_NOT_POWERED,
4396 &cp->type, sizeof(cp->type));
4397 goto failed;
4398 }
4399
4400 if (hdev->discovery.state != DISCOVERY_STOPPED ||
4401 hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
4402 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4403 MGMT_STATUS_BUSY, &cp->type,
4404 sizeof(cp->type));
4405 goto failed;
4406 }
4407
4408 cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, data, len);
4409 if (!cmd) {
4410 err = -ENOMEM;
4411 goto failed;
4412 }
4413
4414 cmd->cmd_complete = generic_cmd_complete;
4415
4416 /* Clear the discovery filter first to free any previously
4417 * allocated memory for the UUID list.
4418 */
4419 hci_discovery_filter_clear(hdev);
4420
4421 hdev->discovery.type = cp->type;
4422 hdev->discovery.report_invalid_rssi = false;
4423
4424 hci_req_init(&req, hdev);
4425
4426 if (!trigger_discovery(&req, &status)) {
4427 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_START_DISCOVERY,
4428 status, &cp->type, sizeof(cp->type));
4429 mgmt_pending_remove(cmd);
4430 goto failed;
4431 }
4432
4433 err = hci_req_run(&req, start_discovery_complete);
4434 if (err < 0) {
4435 mgmt_pending_remove(cmd);
4436 goto failed;
4437 }
4438
4439 hci_discovery_set_state(hdev, DISCOVERY_STARTING);
4440
4441 failed:
4442 hci_dev_unlock(hdev);
4443 return err;
4444 }
4445
4446 static int service_discovery_cmd_complete(struct mgmt_pending_cmd *cmd,
4447 u8 status)
4448 {
4449 return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
4450 cmd->param, 1);
4451 }
4452
4453 static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
4454 void *data, u16 len)
4455 {
4456 struct mgmt_cp_start_service_discovery *cp = data;
4457 struct mgmt_pending_cmd *cmd;
4458 struct hci_request req;
4459 const u16 max_uuid_count = ((U16_MAX - sizeof(*cp)) / 16);
4460 u16 uuid_count, expected_len;
4461 u8 status;
4462 int err;
4463
4464 BT_DBG("%s", hdev->name);
4465
4466 hci_dev_lock(hdev);
4467
4468 if (!hdev_is_powered(hdev)) {
4469 err = mgmt_cmd_complete(sk, hdev->id,
4470 MGMT_OP_START_SERVICE_DISCOVERY,
4471 MGMT_STATUS_NOT_POWERED,
4472 &cp->type, sizeof(cp->type));
4473 goto failed;
4474 }
4475
4476 if (hdev->discovery.state != DISCOVERY_STOPPED ||
4477 hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
4478 err = mgmt_cmd_complete(sk, hdev->id,
4479 MGMT_OP_START_SERVICE_DISCOVERY,
4480 MGMT_STATUS_BUSY, &cp->type,
4481 sizeof(cp->type));
4482 goto failed;
4483 }
4484
4485 uuid_count = __le16_to_cpu(cp->uuid_count);
4486 if (uuid_count > max_uuid_count) {
4487 BT_ERR("service_discovery: too big uuid_count value %u",
4488 uuid_count);
4489 err = mgmt_cmd_complete(sk, hdev->id,
4490 MGMT_OP_START_SERVICE_DISCOVERY,
4491 MGMT_STATUS_INVALID_PARAMS, &cp->type,
4492 sizeof(cp->type));
4493 goto failed;
4494 }
4495
4496 expected_len = sizeof(*cp) + uuid_count * 16;
4497 if (expected_len != len) {
4498 BT_ERR("service_discovery: expected %u bytes, got %u bytes",
4499 expected_len, len);
4500 err = mgmt_cmd_complete(sk, hdev->id,
4501 MGMT_OP_START_SERVICE_DISCOVERY,
4502 MGMT_STATUS_INVALID_PARAMS, &cp->type,
4503 sizeof(cp->type));
4504 goto failed;
4505 }
4506
4507 cmd = mgmt_pending_add(sk, MGMT_OP_START_SERVICE_DISCOVERY,
4508 hdev, data, len);
4509 if (!cmd) {
4510 err = -ENOMEM;
4511 goto failed;
4512 }
4513
4514 cmd->cmd_complete = service_discovery_cmd_complete;
4515
4516 /* Clear the discovery filter first to free any previously
4517 * allocated memory for the UUID list.
4518 */
4519 hci_discovery_filter_clear(hdev);
4520
4521 hdev->discovery.result_filtering = true;
4522 hdev->discovery.type = cp->type;
4523 hdev->discovery.rssi = cp->rssi;
4524 hdev->discovery.uuid_count = uuid_count;
4525
4526 if (uuid_count > 0) {
4527 hdev->discovery.uuids = kmemdup(cp->uuids, uuid_count * 16,
4528 GFP_KERNEL);
4529 if (!hdev->discovery.uuids) {
4530 err = mgmt_cmd_complete(sk, hdev->id,
4531 MGMT_OP_START_SERVICE_DISCOVERY,
4532 MGMT_STATUS_FAILED,
4533 &cp->type, sizeof(cp->type));
4534 mgmt_pending_remove(cmd);
4535 goto failed;
4536 }
4537 }
4538
4539 hci_req_init(&req, hdev);
4540
4541 if (!trigger_discovery(&req, &status)) {
4542 err = mgmt_cmd_complete(sk, hdev->id,
4543 MGMT_OP_START_SERVICE_DISCOVERY,
4544 status, &cp->type, sizeof(cp->type));
4545 mgmt_pending_remove(cmd);
4546 goto failed;
4547 }
4548
4549 err = hci_req_run(&req, start_discovery_complete);
4550 if (err < 0) {
4551 mgmt_pending_remove(cmd);
4552 goto failed;
4553 }
4554
4555 hci_discovery_set_state(hdev, DISCOVERY_STARTING);
4556
4557 failed:
4558 hci_dev_unlock(hdev);
4559 return err;
4560 }
4561
4562 static void stop_discovery_complete(struct hci_dev *hdev, u8 status, u16 opcode)
4563 {
4564 struct mgmt_pending_cmd *cmd;
4565
4566 BT_DBG("status %d", status);
4567
4568 hci_dev_lock(hdev);
4569
4570 cmd = pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
4571 if (cmd) {
4572 cmd->cmd_complete(cmd, mgmt_status(status));
4573 mgmt_pending_remove(cmd);
4574 }
4575
4576 if (!status)
4577 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4578
4579 hci_dev_unlock(hdev);
4580 }
4581
4582 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
4583 u16 len)
4584 {
4585 struct mgmt_cp_stop_discovery *mgmt_cp = data;
4586 struct mgmt_pending_cmd *cmd;
4587 struct hci_request req;
4588 int err;
4589
4590 BT_DBG("%s", hdev->name);
4591
4592 hci_dev_lock(hdev);
4593
4594 if (!hci_discovery_active(hdev)) {
4595 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
4596 MGMT_STATUS_REJECTED, &mgmt_cp->type,
4597 sizeof(mgmt_cp->type));
4598 goto unlock;
4599 }
4600
4601 if (hdev->discovery.type != mgmt_cp->type) {
4602 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
4603 MGMT_STATUS_INVALID_PARAMS,
4604 &mgmt_cp->type, sizeof(mgmt_cp->type));
4605 goto unlock;
4606 }
4607
4608 cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
4609 if (!cmd) {
4610 err = -ENOMEM;
4611 goto unlock;
4612 }
4613
4614 cmd->cmd_complete = generic_cmd_complete;
4615
4616 hci_req_init(&req, hdev);
4617
4618 hci_stop_discovery(&req);
4619
4620 err = hci_req_run(&req, stop_discovery_complete);
4621 if (!err) {
4622 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
4623 goto unlock;
4624 }
4625
4626 mgmt_pending_remove(cmd);
4627
4628 /* If no HCI commands were sent we're done */
4629 if (err == -ENODATA) {
4630 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY, 0,
4631 &mgmt_cp->type, sizeof(mgmt_cp->type));
4632 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
4633 }
4634
4635 unlock:
4636 hci_dev_unlock(hdev);
4637 return err;
4638 }
4639
4640 static int confirm_name(struct sock *sk, struct hci_dev *hdev, void *data,
4641 u16 len)
4642 {
4643 struct mgmt_cp_confirm_name *cp = data;
4644 struct inquiry_entry *e;
4645 int err;
4646
4647 BT_DBG("%s", hdev->name);
4648
4649 hci_dev_lock(hdev);
4650
4651 if (!hci_discovery_active(hdev)) {
4652 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
4653 MGMT_STATUS_FAILED, &cp->addr,
4654 sizeof(cp->addr));
4655 goto failed;
4656 }
4657
4658 e = hci_inquiry_cache_lookup_unknown(hdev, &cp->addr.bdaddr);
4659 if (!e) {
4660 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
4661 MGMT_STATUS_INVALID_PARAMS, &cp->addr,
4662 sizeof(cp->addr));
4663 goto failed;
4664 }
4665
4666 if (cp->name_known) {
4667 e->name_state = NAME_KNOWN;
4668 list_del(&e->list);
4669 } else {
4670 e->name_state = NAME_NEEDED;
4671 hci_inquiry_cache_update_resolve(hdev, e);
4672 }
4673
4674 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME, 0,
4675 &cp->addr, sizeof(cp->addr));
4676
4677 failed:
4678 hci_dev_unlock(hdev);
4679 return err;
4680 }
4681
4682 static int block_device(struct sock *sk, struct hci_dev *hdev, void *data,
4683 u16 len)
4684 {
4685 struct mgmt_cp_block_device *cp = data;
4686 u8 status;
4687 int err;
4688
4689 BT_DBG("%s", hdev->name);
4690
4691 if (!bdaddr_type_is_valid(cp->addr.type))
4692 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE,
4693 MGMT_STATUS_INVALID_PARAMS,
4694 &cp->addr, sizeof(cp->addr));
4695
4696 hci_dev_lock(hdev);
4697
4698 err = hci_bdaddr_list_add(&hdev->blacklist, &cp->addr.bdaddr,
4699 cp->addr.type);
4700 if (err < 0) {
4701 status = MGMT_STATUS_FAILED;
4702 goto done;
4703 }
4704
4705 mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &cp->addr, sizeof(cp->addr),
4706 sk);
4707 status = MGMT_STATUS_SUCCESS;
4708
4709 done:
4710 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status,
4711 &cp->addr, sizeof(cp->addr));
4712
4713 hci_dev_unlock(hdev);
4714
4715 return err;
4716 }
4717
4718 static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data,
4719 u16 len)
4720 {
4721 struct mgmt_cp_unblock_device *cp = data;
4722 u8 status;
4723 int err;
4724
4725 BT_DBG("%s", hdev->name);
4726
4727 if (!bdaddr_type_is_valid(cp->addr.type))
4728 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE,
4729 MGMT_STATUS_INVALID_PARAMS,
4730 &cp->addr, sizeof(cp->addr));
4731
4732 hci_dev_lock(hdev);
4733
4734 err = hci_bdaddr_list_del(&hdev->blacklist, &cp->addr.bdaddr,
4735 cp->addr.type);
4736 if (err < 0) {
4737 status = MGMT_STATUS_INVALID_PARAMS;
4738 goto done;
4739 }
4740
4741 mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &cp->addr, sizeof(cp->addr),
4742 sk);
4743 status = MGMT_STATUS_SUCCESS;
4744
4745 done:
4746 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status,
4747 &cp->addr, sizeof(cp->addr));
4748
4749 hci_dev_unlock(hdev);
4750
4751 return err;
4752 }
4753
4754 static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
4755 u16 len)
4756 {
4757 struct mgmt_cp_set_device_id *cp = data;
4758 struct hci_request req;
4759 int err;
4760 __u16 source;
4761
4762 BT_DBG("%s", hdev->name);
4763
4764 source = __le16_to_cpu(cp->source);
4765
4766 if (source > 0x0002)
4767 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEVICE_ID,
4768 MGMT_STATUS_INVALID_PARAMS);
4769
4770 hci_dev_lock(hdev);
4771
4772 hdev->devid_source = source;
4773 hdev->devid_vendor = __le16_to_cpu(cp->vendor);
4774 hdev->devid_product = __le16_to_cpu(cp->product);
4775 hdev->devid_version = __le16_to_cpu(cp->version);
4776
4777 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 0,
4778 NULL, 0);
4779
4780 hci_req_init(&req, hdev);
4781 update_eir(&req);
4782 hci_req_run(&req, NULL);
4783
4784 hci_dev_unlock(hdev);
4785
4786 return err;
4787 }
4788
4789 static void enable_advertising_instance(struct hci_dev *hdev, u8 status,
4790 u16 opcode)
4791 {
4792 BT_DBG("status %d", status);
4793 }
4794
4795 static void set_advertising_complete(struct hci_dev *hdev, u8 status,
4796 u16 opcode)
4797 {
4798 struct cmd_lookup match = { NULL, hdev };
4799 struct hci_request req;
4800 u8 instance;
4801 struct adv_info *adv_instance;
4802 int err;
4803
4804 hci_dev_lock(hdev);
4805
4806 if (status) {
4807 u8 mgmt_err = mgmt_status(status);
4808
4809 mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev,
4810 cmd_status_rsp, &mgmt_err);
4811 goto unlock;
4812 }
4813
4814 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
4815 hci_dev_set_flag(hdev, HCI_ADVERTISING);
4816 else
4817 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
4818
4819 mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev, settings_rsp,
4820 &match);
4821
4822 new_settings(hdev, match.sk);
4823
4824 if (match.sk)
4825 sock_put(match.sk);
4826
4827 /* If "Set Advertising" was just disabled and instance advertising was
4828 * set up earlier, then re-enable multi-instance advertising.
4829 */
4830 if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
4831 !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) ||
4832 list_empty(&hdev->adv_instances))
4833 goto unlock;
4834
4835 instance = hdev->cur_adv_instance;
4836 if (!instance) {
4837 adv_instance = list_first_entry_or_null(&hdev->adv_instances,
4838 struct adv_info, list);
4839 if (!adv_instance)
4840 goto unlock;
4841
4842 instance = adv_instance->instance;
4843 }
4844
4845 hci_req_init(&req, hdev);
4846
4847 err = schedule_adv_instance(&req, instance, true);
4848
4849 if (!err)
4850 err = hci_req_run(&req, enable_advertising_instance);
4851
4852 if (err)
4853 BT_ERR("Failed to re-configure advertising");
4854
4855 unlock:
4856 hci_dev_unlock(hdev);
4857 }
4858
4859 static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
4860 u16 len)
4861 {
4862 struct mgmt_mode *cp = data;
4863 struct mgmt_pending_cmd *cmd;
4864 struct hci_request req;
4865 u8 val, status;
4866 int err;
4867
4868 BT_DBG("request for %s", hdev->name);
4869
4870 status = mgmt_le_support(hdev);
4871 if (status)
4872 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4873 status);
4874
4875 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
4876 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4877 MGMT_STATUS_INVALID_PARAMS);
4878
4879 hci_dev_lock(hdev);
4880
4881 val = !!cp->val;
4882
4883 /* The following conditions are ones which mean that we should
4884 * not do any HCI communication but directly send a mgmt
4885 * response to user space (after toggling the flag if
4886 * necessary).
4887 */
4888 if (!hdev_is_powered(hdev) ||
4889 (val == hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
4890 (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE)) ||
4891 hci_conn_num(hdev, LE_LINK) > 0 ||
4892 (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
4893 hdev->le_scan_type == LE_SCAN_ACTIVE)) {
4894 bool changed;
4895
4896 if (cp->val) {
4897 changed = !hci_dev_test_and_set_flag(hdev, HCI_ADVERTISING);
4898 if (cp->val == 0x02)
4899 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4900 else
4901 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4902 } else {
4903 changed = hci_dev_test_and_clear_flag(hdev, HCI_ADVERTISING);
4904 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4905 }
4906
4907 err = send_settings_rsp(sk, MGMT_OP_SET_ADVERTISING, hdev);
4908 if (err < 0)
4909 goto unlock;
4910
4911 if (changed)
4912 err = new_settings(hdev, sk);
4913
4914 goto unlock;
4915 }
4916
4917 if (pending_find(MGMT_OP_SET_ADVERTISING, hdev) ||
4918 pending_find(MGMT_OP_SET_LE, hdev)) {
4919 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
4920 MGMT_STATUS_BUSY);
4921 goto unlock;
4922 }
4923
4924 cmd = mgmt_pending_add(sk, MGMT_OP_SET_ADVERTISING, hdev, data, len);
4925 if (!cmd) {
4926 err = -ENOMEM;
4927 goto unlock;
4928 }
4929
4930 hci_req_init(&req, hdev);
4931
4932 if (cp->val == 0x02)
4933 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4934 else
4935 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
4936
4937 cancel_adv_timeout(hdev);
4938
4939 if (val) {
4940 /* Switch to instance "0" for the Set Advertising setting.
4941 * We cannot use update_[adv|scan_rsp]_data() here as the
4942 * HCI_ADVERTISING flag is not yet set.
4943 */
4944 update_inst_adv_data(&req, 0x00);
4945 update_inst_scan_rsp_data(&req, 0x00);
4946 enable_advertising(&req);
4947 } else {
4948 disable_advertising(&req);
4949 }
4950
4951 err = hci_req_run(&req, set_advertising_complete);
4952 if (err < 0)
4953 mgmt_pending_remove(cmd);
4954
4955 unlock:
4956 hci_dev_unlock(hdev);
4957 return err;
4958 }
4959
4960 static int set_static_address(struct sock *sk, struct hci_dev *hdev,
4961 void *data, u16 len)
4962 {
4963 struct mgmt_cp_set_static_address *cp = data;
4964 int err;
4965
4966 BT_DBG("%s", hdev->name);
4967
4968 if (!lmp_le_capable(hdev))
4969 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
4970 MGMT_STATUS_NOT_SUPPORTED);
4971
4972 if (hdev_is_powered(hdev))
4973 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
4974 MGMT_STATUS_REJECTED);
4975
4976 if (bacmp(&cp->bdaddr, BDADDR_ANY)) {
4977 if (!bacmp(&cp->bdaddr, BDADDR_NONE))
4978 return mgmt_cmd_status(sk, hdev->id,
4979 MGMT_OP_SET_STATIC_ADDRESS,
4980 MGMT_STATUS_INVALID_PARAMS);
4981
4982 /* Two most significant bits shall be set */
4983 if ((cp->bdaddr.b[5] & 0xc0) != 0xc0)
4984 return mgmt_cmd_status(sk, hdev->id,
4985 MGMT_OP_SET_STATIC_ADDRESS,
4986 MGMT_STATUS_INVALID_PARAMS);
4987 }
4988
4989 hci_dev_lock(hdev);
4990
4991 bacpy(&hdev->static_addr, &cp->bdaddr);
4992
4993 err = send_settings_rsp(sk, MGMT_OP_SET_STATIC_ADDRESS, hdev);
4994 if (err < 0)
4995 goto unlock;
4996
4997 err = new_settings(hdev, sk);
4998
4999 unlock:
5000 hci_dev_unlock(hdev);
5001 return err;
5002 }
5003
5004 static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
5005 void *data, u16 len)
5006 {
5007 struct mgmt_cp_set_scan_params *cp = data;
5008 __u16 interval, window;
5009 int err;
5010
5011 BT_DBG("%s", hdev->name);
5012
5013 if (!lmp_le_capable(hdev))
5014 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5015 MGMT_STATUS_NOT_SUPPORTED);
5016
5017 interval = __le16_to_cpu(cp->interval);
5018
5019 if (interval < 0x0004 || interval > 0x4000)
5020 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5021 MGMT_STATUS_INVALID_PARAMS);
5022
5023 window = __le16_to_cpu(cp->window);
5024
5025 if (window < 0x0004 || window > 0x4000)
5026 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5027 MGMT_STATUS_INVALID_PARAMS);
5028
5029 if (window > interval)
5030 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
5031 MGMT_STATUS_INVALID_PARAMS);
5032
5033 hci_dev_lock(hdev);
5034
5035 hdev->le_scan_interval = interval;
5036 hdev->le_scan_window = window;
5037
5038 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, 0,
5039 NULL, 0);
5040
5041 /* If background scan is running, restart it so new parameters are
5042 * loaded.
5043 */
5044 if (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
5045 hdev->discovery.state == DISCOVERY_STOPPED) {
5046 struct hci_request req;
5047
5048 hci_req_init(&req, hdev);
5049
5050 hci_req_add_le_scan_disable(&req);
5051 hci_req_add_le_passive_scan(&req);
5052
5053 hci_req_run(&req, NULL);
5054 }
5055
5056 hci_dev_unlock(hdev);
5057
5058 return err;
5059 }
5060
5061 static void fast_connectable_complete(struct hci_dev *hdev, u8 status,
5062 u16 opcode)
5063 {
5064 struct mgmt_pending_cmd *cmd;
5065
5066 BT_DBG("status 0x%02x", status);
5067
5068 hci_dev_lock(hdev);
5069
5070 cmd = pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev);
5071 if (!cmd)
5072 goto unlock;
5073
5074 if (status) {
5075 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5076 mgmt_status(status));
5077 } else {
5078 struct mgmt_mode *cp = cmd->param;
5079
5080 if (cp->val)
5081 hci_dev_set_flag(hdev, HCI_FAST_CONNECTABLE);
5082 else
5083 hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
5084
5085 send_settings_rsp(cmd->sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev);
5086 new_settings(hdev, cmd->sk);
5087 }
5088
5089 mgmt_pending_remove(cmd);
5090
5091 unlock:
5092 hci_dev_unlock(hdev);
5093 }
5094
5095 static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
5096 void *data, u16 len)
5097 {
5098 struct mgmt_mode *cp = data;
5099 struct mgmt_pending_cmd *cmd;
5100 struct hci_request req;
5101 int err;
5102
5103 BT_DBG("%s", hdev->name);
5104
5105 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
5106 hdev->hci_ver < BLUETOOTH_VER_1_2)
5107 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5108 MGMT_STATUS_NOT_SUPPORTED);
5109
5110 if (cp->val != 0x00 && cp->val != 0x01)
5111 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5112 MGMT_STATUS_INVALID_PARAMS);
5113
5114 hci_dev_lock(hdev);
5115
5116 if (pending_find(MGMT_OP_SET_FAST_CONNECTABLE, hdev)) {
5117 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5118 MGMT_STATUS_BUSY);
5119 goto unlock;
5120 }
5121
5122 if (!!cp->val == hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE)) {
5123 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
5124 hdev);
5125 goto unlock;
5126 }
5127
5128 if (!hdev_is_powered(hdev)) {
5129 hci_dev_change_flag(hdev, HCI_FAST_CONNECTABLE);
5130 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE,
5131 hdev);
5132 new_settings(hdev, sk);
5133 goto unlock;
5134 }
5135
5136 cmd = mgmt_pending_add(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev,
5137 data, len);
5138 if (!cmd) {
5139 err = -ENOMEM;
5140 goto unlock;
5141 }
5142
5143 hci_req_init(&req, hdev);
5144
5145 write_fast_connectable(&req, cp->val);
5146
5147 err = hci_req_run(&req, fast_connectable_complete);
5148 if (err < 0) {
5149 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
5150 MGMT_STATUS_FAILED);
5151 mgmt_pending_remove(cmd);
5152 }
5153
5154 unlock:
5155 hci_dev_unlock(hdev);
5156
5157 return err;
5158 }
5159
5160 static void set_bredr_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5161 {
5162 struct mgmt_pending_cmd *cmd;
5163
5164 BT_DBG("status 0x%02x", status);
5165
5166 hci_dev_lock(hdev);
5167
5168 cmd = pending_find(MGMT_OP_SET_BREDR, hdev);
5169 if (!cmd)
5170 goto unlock;
5171
5172 if (status) {
5173 u8 mgmt_err = mgmt_status(status);
5174
5175 /* We need to restore the flag if related HCI commands
5176 * failed.
5177 */
5178 hci_dev_clear_flag(hdev, HCI_BREDR_ENABLED);
5179
5180 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
5181 } else {
5182 send_settings_rsp(cmd->sk, MGMT_OP_SET_BREDR, hdev);
5183 new_settings(hdev, cmd->sk);
5184 }
5185
5186 mgmt_pending_remove(cmd);
5187
5188 unlock:
5189 hci_dev_unlock(hdev);
5190 }
5191
5192 static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
5193 {
5194 struct mgmt_mode *cp = data;
5195 struct mgmt_pending_cmd *cmd;
5196 struct hci_request req;
5197 int err;
5198
5199 BT_DBG("request for %s", hdev->name);
5200
5201 if (!lmp_bredr_capable(hdev) || !lmp_le_capable(hdev))
5202 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5203 MGMT_STATUS_NOT_SUPPORTED);
5204
5205 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
5206 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5207 MGMT_STATUS_REJECTED);
5208
5209 if (cp->val != 0x00 && cp->val != 0x01)
5210 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5211 MGMT_STATUS_INVALID_PARAMS);
5212
5213 hci_dev_lock(hdev);
5214
5215 if (cp->val == hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
5216 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
5217 goto unlock;
5218 }
5219
5220 if (!hdev_is_powered(hdev)) {
5221 if (!cp->val) {
5222 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
5223 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
5224 hci_dev_clear_flag(hdev, HCI_LINK_SECURITY);
5225 hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
5226 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
5227 }
5228
5229 hci_dev_change_flag(hdev, HCI_BREDR_ENABLED);
5230
5231 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
5232 if (err < 0)
5233 goto unlock;
5234
5235 err = new_settings(hdev, sk);
5236 goto unlock;
5237 }
5238
5239 /* Reject disabling when powered on */
5240 if (!cp->val) {
5241 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5242 MGMT_STATUS_REJECTED);
5243 goto unlock;
5244 } else {
5245 /* When configuring a dual-mode controller to operate
5246 * with LE only and using a static address, then switching
5247 * BR/EDR back on is not allowed.
5248 *
5249 * Dual-mode controllers shall operate with the public
5250 * address as its identity address for BR/EDR and LE. So
5251 * reject the attempt to create an invalid configuration.
5252 *
5253 * The same restrictions applies when secure connections
5254 * has been enabled. For BR/EDR this is a controller feature
5255 * while for LE it is a host stack feature. This means that
5256 * switching BR/EDR back on when secure connections has been
5257 * enabled is not a supported transaction.
5258 */
5259 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
5260 (bacmp(&hdev->static_addr, BDADDR_ANY) ||
5261 hci_dev_test_flag(hdev, HCI_SC_ENABLED))) {
5262 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5263 MGMT_STATUS_REJECTED);
5264 goto unlock;
5265 }
5266 }
5267
5268 if (pending_find(MGMT_OP_SET_BREDR, hdev)) {
5269 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
5270 MGMT_STATUS_BUSY);
5271 goto unlock;
5272 }
5273
5274 cmd = mgmt_pending_add(sk, MGMT_OP_SET_BREDR, hdev, data, len);
5275 if (!cmd) {
5276 err = -ENOMEM;
5277 goto unlock;
5278 }
5279
5280 /* We need to flip the bit already here so that update_adv_data
5281 * generates the correct flags.
5282 */
5283 hci_dev_set_flag(hdev, HCI_BREDR_ENABLED);
5284
5285 hci_req_init(&req, hdev);
5286
5287 write_fast_connectable(&req, false);
5288 __hci_update_page_scan(&req);
5289
5290 /* Since only the advertising data flags will change, there
5291 * is no need to update the scan response data.
5292 */
5293 update_adv_data(&req);
5294
5295 err = hci_req_run(&req, set_bredr_complete);
5296 if (err < 0)
5297 mgmt_pending_remove(cmd);
5298
5299 unlock:
5300 hci_dev_unlock(hdev);
5301 return err;
5302 }
5303
5304 static void sc_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5305 {
5306 struct mgmt_pending_cmd *cmd;
5307 struct mgmt_mode *cp;
5308
5309 BT_DBG("%s status %u", hdev->name, status);
5310
5311 hci_dev_lock(hdev);
5312
5313 cmd = pending_find(MGMT_OP_SET_SECURE_CONN, hdev);
5314 if (!cmd)
5315 goto unlock;
5316
5317 if (status) {
5318 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
5319 mgmt_status(status));
5320 goto remove;
5321 }
5322
5323 cp = cmd->param;
5324
5325 switch (cp->val) {
5326 case 0x00:
5327 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
5328 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5329 break;
5330 case 0x01:
5331 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
5332 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5333 break;
5334 case 0x02:
5335 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
5336 hci_dev_set_flag(hdev, HCI_SC_ONLY);
5337 break;
5338 }
5339
5340 send_settings_rsp(cmd->sk, MGMT_OP_SET_SECURE_CONN, hdev);
5341 new_settings(hdev, cmd->sk);
5342
5343 remove:
5344 mgmt_pending_remove(cmd);
5345 unlock:
5346 hci_dev_unlock(hdev);
5347 }
5348
5349 static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
5350 void *data, u16 len)
5351 {
5352 struct mgmt_mode *cp = data;
5353 struct mgmt_pending_cmd *cmd;
5354 struct hci_request req;
5355 u8 val;
5356 int err;
5357
5358 BT_DBG("request for %s", hdev->name);
5359
5360 if (!lmp_sc_capable(hdev) &&
5361 !hci_dev_test_flag(hdev, HCI_LE_ENABLED))
5362 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5363 MGMT_STATUS_NOT_SUPPORTED);
5364
5365 if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
5366 lmp_sc_capable(hdev) &&
5367 !hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
5368 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5369 MGMT_STATUS_REJECTED);
5370
5371 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
5372 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5373 MGMT_STATUS_INVALID_PARAMS);
5374
5375 hci_dev_lock(hdev);
5376
5377 if (!hdev_is_powered(hdev) || !lmp_sc_capable(hdev) ||
5378 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
5379 bool changed;
5380
5381 if (cp->val) {
5382 changed = !hci_dev_test_and_set_flag(hdev,
5383 HCI_SC_ENABLED);
5384 if (cp->val == 0x02)
5385 hci_dev_set_flag(hdev, HCI_SC_ONLY);
5386 else
5387 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5388 } else {
5389 changed = hci_dev_test_and_clear_flag(hdev,
5390 HCI_SC_ENABLED);
5391 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
5392 }
5393
5394 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
5395 if (err < 0)
5396 goto failed;
5397
5398 if (changed)
5399 err = new_settings(hdev, sk);
5400
5401 goto failed;
5402 }
5403
5404 if (pending_find(MGMT_OP_SET_SECURE_CONN, hdev)) {
5405 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
5406 MGMT_STATUS_BUSY);
5407 goto failed;
5408 }
5409
5410 val = !!cp->val;
5411
5412 if (val == hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
5413 (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
5414 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
5415 goto failed;
5416 }
5417
5418 cmd = mgmt_pending_add(sk, MGMT_OP_SET_SECURE_CONN, hdev, data, len);
5419 if (!cmd) {
5420 err = -ENOMEM;
5421 goto failed;
5422 }
5423
5424 hci_req_init(&req, hdev);
5425 hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT, 1, &val);
5426 err = hci_req_run(&req, sc_enable_complete);
5427 if (err < 0) {
5428 mgmt_pending_remove(cmd);
5429 goto failed;
5430 }
5431
5432 failed:
5433 hci_dev_unlock(hdev);
5434 return err;
5435 }
5436
5437 static int set_debug_keys(struct sock *sk, struct hci_dev *hdev,
5438 void *data, u16 len)
5439 {
5440 struct mgmt_mode *cp = data;
5441 bool changed, use_changed;
5442 int err;
5443
5444 BT_DBG("request for %s", hdev->name);
5445
5446 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
5447 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEBUG_KEYS,
5448 MGMT_STATUS_INVALID_PARAMS);
5449
5450 hci_dev_lock(hdev);
5451
5452 if (cp->val)
5453 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
5454 else
5455 changed = hci_dev_test_and_clear_flag(hdev,
5456 HCI_KEEP_DEBUG_KEYS);
5457
5458 if (cp->val == 0x02)
5459 use_changed = !hci_dev_test_and_set_flag(hdev,
5460 HCI_USE_DEBUG_KEYS);
5461 else
5462 use_changed = hci_dev_test_and_clear_flag(hdev,
5463 HCI_USE_DEBUG_KEYS);
5464
5465 if (hdev_is_powered(hdev) && use_changed &&
5466 hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
5467 u8 mode = (cp->val == 0x02) ? 0x01 : 0x00;
5468 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
5469 sizeof(mode), &mode);
5470 }
5471
5472 err = send_settings_rsp(sk, MGMT_OP_SET_DEBUG_KEYS, hdev);
5473 if (err < 0)
5474 goto unlock;
5475
5476 if (changed)
5477 err = new_settings(hdev, sk);
5478
5479 unlock:
5480 hci_dev_unlock(hdev);
5481 return err;
5482 }
5483
5484 static int set_privacy(struct sock *sk, struct hci_dev *hdev, void *cp_data,
5485 u16 len)
5486 {
5487 struct mgmt_cp_set_privacy *cp = cp_data;
5488 bool changed;
5489 int err;
5490
5491 BT_DBG("request for %s", hdev->name);
5492
5493 if (!lmp_le_capable(hdev))
5494 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5495 MGMT_STATUS_NOT_SUPPORTED);
5496
5497 if (cp->privacy != 0x00 && cp->privacy != 0x01)
5498 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5499 MGMT_STATUS_INVALID_PARAMS);
5500
5501 if (hdev_is_powered(hdev))
5502 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
5503 MGMT_STATUS_REJECTED);
5504
5505 hci_dev_lock(hdev);
5506
5507 /* If user space supports this command it is also expected to
5508 * handle IRKs. Therefore, set the HCI_RPA_RESOLVING flag.
5509 */
5510 hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
5511
5512 if (cp->privacy) {
5513 changed = !hci_dev_test_and_set_flag(hdev, HCI_PRIVACY);
5514 memcpy(hdev->irk, cp->irk, sizeof(hdev->irk));
5515 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
5516 } else {
5517 changed = hci_dev_test_and_clear_flag(hdev, HCI_PRIVACY);
5518 memset(hdev->irk, 0, sizeof(hdev->irk));
5519 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
5520 }
5521
5522 err = send_settings_rsp(sk, MGMT_OP_SET_PRIVACY, hdev);
5523 if (err < 0)
5524 goto unlock;
5525
5526 if (changed)
5527 err = new_settings(hdev, sk);
5528
5529 unlock:
5530 hci_dev_unlock(hdev);
5531 return err;
5532 }
5533
5534 static bool irk_is_valid(struct mgmt_irk_info *irk)
5535 {
5536 switch (irk->addr.type) {
5537 case BDADDR_LE_PUBLIC:
5538 return true;
5539
5540 case BDADDR_LE_RANDOM:
5541 /* Two most significant bits shall be set */
5542 if ((irk->addr.bdaddr.b[5] & 0xc0) != 0xc0)
5543 return false;
5544 return true;
5545 }
5546
5547 return false;
5548 }
5549
5550 static int load_irks(struct sock *sk, struct hci_dev *hdev, void *cp_data,
5551 u16 len)
5552 {
5553 struct mgmt_cp_load_irks *cp = cp_data;
5554 const u16 max_irk_count = ((U16_MAX - sizeof(*cp)) /
5555 sizeof(struct mgmt_irk_info));
5556 u16 irk_count, expected_len;
5557 int i, err;
5558
5559 BT_DBG("request for %s", hdev->name);
5560
5561 if (!lmp_le_capable(hdev))
5562 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5563 MGMT_STATUS_NOT_SUPPORTED);
5564
5565 irk_count = __le16_to_cpu(cp->irk_count);
5566 if (irk_count > max_irk_count) {
5567 BT_ERR("load_irks: too big irk_count value %u", irk_count);
5568 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5569 MGMT_STATUS_INVALID_PARAMS);
5570 }
5571
5572 expected_len = sizeof(*cp) + irk_count * sizeof(struct mgmt_irk_info);
5573 if (expected_len != len) {
5574 BT_ERR("load_irks: expected %u bytes, got %u bytes",
5575 expected_len, len);
5576 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
5577 MGMT_STATUS_INVALID_PARAMS);
5578 }
5579
5580 BT_DBG("%s irk_count %u", hdev->name, irk_count);
5581
5582 for (i = 0; i < irk_count; i++) {
5583 struct mgmt_irk_info *key = &cp->irks[i];
5584
5585 if (!irk_is_valid(key))
5586 return mgmt_cmd_status(sk, hdev->id,
5587 MGMT_OP_LOAD_IRKS,
5588 MGMT_STATUS_INVALID_PARAMS);
5589 }
5590
5591 hci_dev_lock(hdev);
5592
5593 hci_smp_irks_clear(hdev);
5594
5595 for (i = 0; i < irk_count; i++) {
5596 struct mgmt_irk_info *irk = &cp->irks[i];
5597 u8 addr_type;
5598
5599 if (irk->addr.type == BDADDR_LE_PUBLIC)
5600 addr_type = ADDR_LE_DEV_PUBLIC;
5601 else
5602 addr_type = ADDR_LE_DEV_RANDOM;
5603
5604 hci_add_irk(hdev, &irk->addr.bdaddr, addr_type, irk->val,
5605 BDADDR_ANY);
5606 }
5607
5608 hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
5609
5610 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_IRKS, 0, NULL, 0);
5611
5612 hci_dev_unlock(hdev);
5613
5614 return err;
5615 }
5616
5617 static bool ltk_is_valid(struct mgmt_ltk_info *key)
5618 {
5619 if (key->master != 0x00 && key->master != 0x01)
5620 return false;
5621
5622 switch (key->addr.type) {
5623 case BDADDR_LE_PUBLIC:
5624 return true;
5625
5626 case BDADDR_LE_RANDOM:
5627 /* Two most significant bits shall be set */
5628 if ((key->addr.bdaddr.b[5] & 0xc0) != 0xc0)
5629 return false;
5630 return true;
5631 }
5632
5633 return false;
5634 }
5635
5636 static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
5637 void *cp_data, u16 len)
5638 {
5639 struct mgmt_cp_load_long_term_keys *cp = cp_data;
5640 const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
5641 sizeof(struct mgmt_ltk_info));
5642 u16 key_count, expected_len;
5643 int i, err;
5644
5645 BT_DBG("request for %s", hdev->name);
5646
5647 if (!lmp_le_capable(hdev))
5648 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5649 MGMT_STATUS_NOT_SUPPORTED);
5650
5651 key_count = __le16_to_cpu(cp->key_count);
5652 if (key_count > max_key_count) {
5653 BT_ERR("load_ltks: too big key_count value %u", key_count);
5654 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5655 MGMT_STATUS_INVALID_PARAMS);
5656 }
5657
5658 expected_len = sizeof(*cp) + key_count *
5659 sizeof(struct mgmt_ltk_info);
5660 if (expected_len != len) {
5661 BT_ERR("load_keys: expected %u bytes, got %u bytes",
5662 expected_len, len);
5663 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
5664 MGMT_STATUS_INVALID_PARAMS);
5665 }
5666
5667 BT_DBG("%s key_count %u", hdev->name, key_count);
5668
5669 for (i = 0; i < key_count; i++) {
5670 struct mgmt_ltk_info *key = &cp->keys[i];
5671
5672 if (!ltk_is_valid(key))
5673 return mgmt_cmd_status(sk, hdev->id,
5674 MGMT_OP_LOAD_LONG_TERM_KEYS,
5675 MGMT_STATUS_INVALID_PARAMS);
5676 }
5677
5678 hci_dev_lock(hdev);
5679
5680 hci_smp_ltks_clear(hdev);
5681
5682 for (i = 0; i < key_count; i++) {
5683 struct mgmt_ltk_info *key = &cp->keys[i];
5684 u8 type, addr_type, authenticated;
5685
5686 if (key->addr.type == BDADDR_LE_PUBLIC)
5687 addr_type = ADDR_LE_DEV_PUBLIC;
5688 else
5689 addr_type = ADDR_LE_DEV_RANDOM;
5690
5691 switch (key->type) {
5692 case MGMT_LTK_UNAUTHENTICATED:
5693 authenticated = 0x00;
5694 type = key->master ? SMP_LTK : SMP_LTK_SLAVE;
5695 break;
5696 case MGMT_LTK_AUTHENTICATED:
5697 authenticated = 0x01;
5698 type = key->master ? SMP_LTK : SMP_LTK_SLAVE;
5699 break;
5700 case MGMT_LTK_P256_UNAUTH:
5701 authenticated = 0x00;
5702 type = SMP_LTK_P256;
5703 break;
5704 case MGMT_LTK_P256_AUTH:
5705 authenticated = 0x01;
5706 type = SMP_LTK_P256;
5707 break;
5708 case MGMT_LTK_P256_DEBUG:
5709 authenticated = 0x00;
5710 type = SMP_LTK_P256_DEBUG;
5711 default:
5712 continue;
5713 }
5714
5715 hci_add_ltk(hdev, &key->addr.bdaddr, addr_type, type,
5716 authenticated, key->val, key->enc_size, key->ediv,
5717 key->rand);
5718 }
5719
5720 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS, 0,
5721 NULL, 0);
5722
5723 hci_dev_unlock(hdev);
5724
5725 return err;
5726 }
5727
5728 static int conn_info_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
5729 {
5730 struct hci_conn *conn = cmd->user_data;
5731 struct mgmt_rp_get_conn_info rp;
5732 int err;
5733
5734 memcpy(&rp.addr, cmd->param, sizeof(rp.addr));
5735
5736 if (status == MGMT_STATUS_SUCCESS) {
5737 rp.rssi = conn->rssi;
5738 rp.tx_power = conn->tx_power;
5739 rp.max_tx_power = conn->max_tx_power;
5740 } else {
5741 rp.rssi = HCI_RSSI_INVALID;
5742 rp.tx_power = HCI_TX_POWER_INVALID;
5743 rp.max_tx_power = HCI_TX_POWER_INVALID;
5744 }
5745
5746 err = mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_GET_CONN_INFO,
5747 status, &rp, sizeof(rp));
5748
5749 hci_conn_drop(conn);
5750 hci_conn_put(conn);
5751
5752 return err;
5753 }
5754
5755 static void conn_info_refresh_complete(struct hci_dev *hdev, u8 hci_status,
5756 u16 opcode)
5757 {
5758 struct hci_cp_read_rssi *cp;
5759 struct mgmt_pending_cmd *cmd;
5760 struct hci_conn *conn;
5761 u16 handle;
5762 u8 status;
5763
5764 BT_DBG("status 0x%02x", hci_status);
5765
5766 hci_dev_lock(hdev);
5767
5768 /* Commands sent in request are either Read RSSI or Read Transmit Power
5769 * Level so we check which one was last sent to retrieve connection
5770 * handle. Both commands have handle as first parameter so it's safe to
5771 * cast data on the same command struct.
5772 *
5773 * First command sent is always Read RSSI and we fail only if it fails.
5774 * In other case we simply override error to indicate success as we
5775 * already remembered if TX power value is actually valid.
5776 */
5777 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_RSSI);
5778 if (!cp) {
5779 cp = hci_sent_cmd_data(hdev, HCI_OP_READ_TX_POWER);
5780 status = MGMT_STATUS_SUCCESS;
5781 } else {
5782 status = mgmt_status(hci_status);
5783 }
5784
5785 if (!cp) {
5786 BT_ERR("invalid sent_cmd in conn_info response");
5787 goto unlock;
5788 }
5789
5790 handle = __le16_to_cpu(cp->handle);
5791 conn = hci_conn_hash_lookup_handle(hdev, handle);
5792 if (!conn) {
5793 BT_ERR("unknown handle (%d) in conn_info response", handle);
5794 goto unlock;
5795 }
5796
5797 cmd = pending_find_data(MGMT_OP_GET_CONN_INFO, hdev, conn);
5798 if (!cmd)
5799 goto unlock;
5800
5801 cmd->cmd_complete(cmd, status);
5802 mgmt_pending_remove(cmd);
5803
5804 unlock:
5805 hci_dev_unlock(hdev);
5806 }
5807
5808 static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
5809 u16 len)
5810 {
5811 struct mgmt_cp_get_conn_info *cp = data;
5812 struct mgmt_rp_get_conn_info rp;
5813 struct hci_conn *conn;
5814 unsigned long conn_info_age;
5815 int err = 0;
5816
5817 BT_DBG("%s", hdev->name);
5818
5819 memset(&rp, 0, sizeof(rp));
5820 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
5821 rp.addr.type = cp->addr.type;
5822
5823 if (!bdaddr_type_is_valid(cp->addr.type))
5824 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5825 MGMT_STATUS_INVALID_PARAMS,
5826 &rp, sizeof(rp));
5827
5828 hci_dev_lock(hdev);
5829
5830 if (!hdev_is_powered(hdev)) {
5831 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5832 MGMT_STATUS_NOT_POWERED, &rp,
5833 sizeof(rp));
5834 goto unlock;
5835 }
5836
5837 if (cp->addr.type == BDADDR_BREDR)
5838 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
5839 &cp->addr.bdaddr);
5840 else
5841 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
5842
5843 if (!conn || conn->state != BT_CONNECTED) {
5844 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5845 MGMT_STATUS_NOT_CONNECTED, &rp,
5846 sizeof(rp));
5847 goto unlock;
5848 }
5849
5850 if (pending_find_data(MGMT_OP_GET_CONN_INFO, hdev, conn)) {
5851 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5852 MGMT_STATUS_BUSY, &rp, sizeof(rp));
5853 goto unlock;
5854 }
5855
5856 /* To avoid client trying to guess when to poll again for information we
5857 * calculate conn info age as random value between min/max set in hdev.
5858 */
5859 conn_info_age = hdev->conn_info_min_age +
5860 prandom_u32_max(hdev->conn_info_max_age -
5861 hdev->conn_info_min_age);
5862
5863 /* Query controller to refresh cached values if they are too old or were
5864 * never read.
5865 */
5866 if (time_after(jiffies, conn->conn_info_timestamp +
5867 msecs_to_jiffies(conn_info_age)) ||
5868 !conn->conn_info_timestamp) {
5869 struct hci_request req;
5870 struct hci_cp_read_tx_power req_txp_cp;
5871 struct hci_cp_read_rssi req_rssi_cp;
5872 struct mgmt_pending_cmd *cmd;
5873
5874 hci_req_init(&req, hdev);
5875 req_rssi_cp.handle = cpu_to_le16(conn->handle);
5876 hci_req_add(&req, HCI_OP_READ_RSSI, sizeof(req_rssi_cp),
5877 &req_rssi_cp);
5878
5879 /* For LE links TX power does not change thus we don't need to
5880 * query for it once value is known.
5881 */
5882 if (!bdaddr_type_is_le(cp->addr.type) ||
5883 conn->tx_power == HCI_TX_POWER_INVALID) {
5884 req_txp_cp.handle = cpu_to_le16(conn->handle);
5885 req_txp_cp.type = 0x00;
5886 hci_req_add(&req, HCI_OP_READ_TX_POWER,
5887 sizeof(req_txp_cp), &req_txp_cp);
5888 }
5889
5890 /* Max TX power needs to be read only once per connection */
5891 if (conn->max_tx_power == HCI_TX_POWER_INVALID) {
5892 req_txp_cp.handle = cpu_to_le16(conn->handle);
5893 req_txp_cp.type = 0x01;
5894 hci_req_add(&req, HCI_OP_READ_TX_POWER,
5895 sizeof(req_txp_cp), &req_txp_cp);
5896 }
5897
5898 err = hci_req_run(&req, conn_info_refresh_complete);
5899 if (err < 0)
5900 goto unlock;
5901
5902 cmd = mgmt_pending_add(sk, MGMT_OP_GET_CONN_INFO, hdev,
5903 data, len);
5904 if (!cmd) {
5905 err = -ENOMEM;
5906 goto unlock;
5907 }
5908
5909 hci_conn_hold(conn);
5910 cmd->user_data = hci_conn_get(conn);
5911 cmd->cmd_complete = conn_info_cmd_complete;
5912
5913 conn->conn_info_timestamp = jiffies;
5914 } else {
5915 /* Cache is valid, just reply with values cached in hci_conn */
5916 rp.rssi = conn->rssi;
5917 rp.tx_power = conn->tx_power;
5918 rp.max_tx_power = conn->max_tx_power;
5919
5920 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
5921 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
5922 }
5923
5924 unlock:
5925 hci_dev_unlock(hdev);
5926 return err;
5927 }
5928
5929 static int clock_info_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
5930 {
5931 struct hci_conn *conn = cmd->user_data;
5932 struct mgmt_rp_get_clock_info rp;
5933 struct hci_dev *hdev;
5934 int err;
5935
5936 memset(&rp, 0, sizeof(rp));
5937 memcpy(&rp.addr, &cmd->param, sizeof(rp.addr));
5938
5939 if (status)
5940 goto complete;
5941
5942 hdev = hci_dev_get(cmd->index);
5943 if (hdev) {
5944 rp.local_clock = cpu_to_le32(hdev->clock);
5945 hci_dev_put(hdev);
5946 }
5947
5948 if (conn) {
5949 rp.piconet_clock = cpu_to_le32(conn->clock);
5950 rp.accuracy = cpu_to_le16(conn->clock_accuracy);
5951 }
5952
5953 complete:
5954 err = mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status, &rp,
5955 sizeof(rp));
5956
5957 if (conn) {
5958 hci_conn_drop(conn);
5959 hci_conn_put(conn);
5960 }
5961
5962 return err;
5963 }
5964
5965 static void get_clock_info_complete(struct hci_dev *hdev, u8 status, u16 opcode)
5966 {
5967 struct hci_cp_read_clock *hci_cp;
5968 struct mgmt_pending_cmd *cmd;
5969 struct hci_conn *conn;
5970
5971 BT_DBG("%s status %u", hdev->name, status);
5972
5973 hci_dev_lock(hdev);
5974
5975 hci_cp = hci_sent_cmd_data(hdev, HCI_OP_READ_CLOCK);
5976 if (!hci_cp)
5977 goto unlock;
5978
5979 if (hci_cp->which) {
5980 u16 handle = __le16_to_cpu(hci_cp->handle);
5981 conn = hci_conn_hash_lookup_handle(hdev, handle);
5982 } else {
5983 conn = NULL;
5984 }
5985
5986 cmd = pending_find_data(MGMT_OP_GET_CLOCK_INFO, hdev, conn);
5987 if (!cmd)
5988 goto unlock;
5989
5990 cmd->cmd_complete(cmd, mgmt_status(status));
5991 mgmt_pending_remove(cmd);
5992
5993 unlock:
5994 hci_dev_unlock(hdev);
5995 }
5996
5997 static int get_clock_info(struct sock *sk, struct hci_dev *hdev, void *data,
5998 u16 len)
5999 {
6000 struct mgmt_cp_get_clock_info *cp = data;
6001 struct mgmt_rp_get_clock_info rp;
6002 struct hci_cp_read_clock hci_cp;
6003 struct mgmt_pending_cmd *cmd;
6004 struct hci_request req;
6005 struct hci_conn *conn;
6006 int err;
6007
6008 BT_DBG("%s", hdev->name);
6009
6010 memset(&rp, 0, sizeof(rp));
6011 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
6012 rp.addr.type = cp->addr.type;
6013
6014 if (cp->addr.type != BDADDR_BREDR)
6015 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
6016 MGMT_STATUS_INVALID_PARAMS,
6017 &rp, sizeof(rp));
6018
6019 hci_dev_lock(hdev);
6020
6021 if (!hdev_is_powered(hdev)) {
6022 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
6023 MGMT_STATUS_NOT_POWERED, &rp,
6024 sizeof(rp));
6025 goto unlock;
6026 }
6027
6028 if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
6029 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
6030 &cp->addr.bdaddr);
6031 if (!conn || conn->state != BT_CONNECTED) {
6032 err = mgmt_cmd_complete(sk, hdev->id,
6033 MGMT_OP_GET_CLOCK_INFO,
6034 MGMT_STATUS_NOT_CONNECTED,
6035 &rp, sizeof(rp));
6036 goto unlock;
6037 }
6038 } else {
6039 conn = NULL;
6040 }
6041
6042 cmd = mgmt_pending_add(sk, MGMT_OP_GET_CLOCK_INFO, hdev, data, len);
6043 if (!cmd) {
6044 err = -ENOMEM;
6045 goto unlock;
6046 }
6047
6048 cmd->cmd_complete = clock_info_cmd_complete;
6049
6050 hci_req_init(&req, hdev);
6051
6052 memset(&hci_cp, 0, sizeof(hci_cp));
6053 hci_req_add(&req, HCI_OP_READ_CLOCK, sizeof(hci_cp), &hci_cp);
6054
6055 if (conn) {
6056 hci_conn_hold(conn);
6057 cmd->user_data = hci_conn_get(conn);
6058
6059 hci_cp.handle = cpu_to_le16(conn->handle);
6060 hci_cp.which = 0x01; /* Piconet clock */
6061 hci_req_add(&req, HCI_OP_READ_CLOCK, sizeof(hci_cp), &hci_cp);
6062 }
6063
6064 err = hci_req_run(&req, get_clock_info_complete);
6065 if (err < 0)
6066 mgmt_pending_remove(cmd);
6067
6068 unlock:
6069 hci_dev_unlock(hdev);
6070 return err;
6071 }
6072
6073 static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
6074 {
6075 struct hci_conn *conn;
6076
6077 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr);
6078 if (!conn)
6079 return false;
6080
6081 if (conn->dst_type != type)
6082 return false;
6083
6084 if (conn->state != BT_CONNECTED)
6085 return false;
6086
6087 return true;
6088 }
6089
6090 /* This function requires the caller holds hdev->lock */
6091 static int hci_conn_params_set(struct hci_request *req, bdaddr_t *addr,
6092 u8 addr_type, u8 auto_connect)
6093 {
6094 struct hci_dev *hdev = req->hdev;
6095 struct hci_conn_params *params;
6096
6097 params = hci_conn_params_add(hdev, addr, addr_type);
6098 if (!params)
6099 return -EIO;
6100
6101 if (params->auto_connect == auto_connect)
6102 return 0;
6103
6104 list_del_init(&params->action);
6105
6106 switch (auto_connect) {
6107 case HCI_AUTO_CONN_DISABLED:
6108 case HCI_AUTO_CONN_LINK_LOSS:
6109 __hci_update_background_scan(req);
6110 break;
6111 case HCI_AUTO_CONN_REPORT:
6112 list_add(&params->action, &hdev->pend_le_reports);
6113 __hci_update_background_scan(req);
6114 break;
6115 case HCI_AUTO_CONN_DIRECT:
6116 case HCI_AUTO_CONN_ALWAYS:
6117 if (!is_connected(hdev, addr, addr_type)) {
6118 list_add(&params->action, &hdev->pend_le_conns);
6119 __hci_update_background_scan(req);
6120 }
6121 break;
6122 }
6123
6124 params->auto_connect = auto_connect;
6125
6126 BT_DBG("addr %pMR (type %u) auto_connect %u", addr, addr_type,
6127 auto_connect);
6128
6129 return 0;
6130 }
6131
6132 static void device_added(struct sock *sk, struct hci_dev *hdev,
6133 bdaddr_t *bdaddr, u8 type, u8 action)
6134 {
6135 struct mgmt_ev_device_added ev;
6136
6137 bacpy(&ev.addr.bdaddr, bdaddr);
6138 ev.addr.type = type;
6139 ev.action = action;
6140
6141 mgmt_event(MGMT_EV_DEVICE_ADDED, hdev, &ev, sizeof(ev), sk);
6142 }
6143
6144 static void add_device_complete(struct hci_dev *hdev, u8 status, u16 opcode)
6145 {
6146 struct mgmt_pending_cmd *cmd;
6147
6148 BT_DBG("status 0x%02x", status);
6149
6150 hci_dev_lock(hdev);
6151
6152 cmd = pending_find(MGMT_OP_ADD_DEVICE, hdev);
6153 if (!cmd)
6154 goto unlock;
6155
6156 cmd->cmd_complete(cmd, mgmt_status(status));
6157 mgmt_pending_remove(cmd);
6158
6159 unlock:
6160 hci_dev_unlock(hdev);
6161 }
6162
6163 static int add_device(struct sock *sk, struct hci_dev *hdev,
6164 void *data, u16 len)
6165 {
6166 struct mgmt_cp_add_device *cp = data;
6167 struct mgmt_pending_cmd *cmd;
6168 struct hci_request req;
6169 u8 auto_conn, addr_type;
6170 int err;
6171
6172 BT_DBG("%s", hdev->name);
6173
6174 if (!bdaddr_type_is_valid(cp->addr.type) ||
6175 !bacmp(&cp->addr.bdaddr, BDADDR_ANY))
6176 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
6177 MGMT_STATUS_INVALID_PARAMS,
6178 &cp->addr, sizeof(cp->addr));
6179
6180 if (cp->action != 0x00 && cp->action != 0x01 && cp->action != 0x02)
6181 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
6182 MGMT_STATUS_INVALID_PARAMS,
6183 &cp->addr, sizeof(cp->addr));
6184
6185 hci_req_init(&req, hdev);
6186
6187 hci_dev_lock(hdev);
6188
6189 cmd = mgmt_pending_add(sk, MGMT_OP_ADD_DEVICE, hdev, data, len);
6190 if (!cmd) {
6191 err = -ENOMEM;
6192 goto unlock;
6193 }
6194
6195 cmd->cmd_complete = addr_cmd_complete;
6196
6197 if (cp->addr.type == BDADDR_BREDR) {
6198 /* Only incoming connections action is supported for now */
6199 if (cp->action != 0x01) {
6200 err = cmd->cmd_complete(cmd,
6201 MGMT_STATUS_INVALID_PARAMS);
6202 mgmt_pending_remove(cmd);
6203 goto unlock;
6204 }
6205
6206 err = hci_bdaddr_list_add(&hdev->whitelist, &cp->addr.bdaddr,
6207 cp->addr.type);
6208 if (err)
6209 goto unlock;
6210
6211 __hci_update_page_scan(&req);
6212
6213 goto added;
6214 }
6215
6216 if (cp->addr.type == BDADDR_LE_PUBLIC)
6217 addr_type = ADDR_LE_DEV_PUBLIC;
6218 else
6219 addr_type = ADDR_LE_DEV_RANDOM;
6220
6221 if (cp->action == 0x02)
6222 auto_conn = HCI_AUTO_CONN_ALWAYS;
6223 else if (cp->action == 0x01)
6224 auto_conn = HCI_AUTO_CONN_DIRECT;
6225 else
6226 auto_conn = HCI_AUTO_CONN_REPORT;
6227
6228 /* If the connection parameters don't exist for this device,
6229 * they will be created and configured with defaults.
6230 */
6231 if (hci_conn_params_set(&req, &cp->addr.bdaddr, addr_type,
6232 auto_conn) < 0) {
6233 err = cmd->cmd_complete(cmd, MGMT_STATUS_FAILED);
6234 mgmt_pending_remove(cmd);
6235 goto unlock;
6236 }
6237
6238 added:
6239 device_added(sk, hdev, &cp->addr.bdaddr, cp->addr.type, cp->action);
6240
6241 err = hci_req_run(&req, add_device_complete);
6242 if (err < 0) {
6243 /* ENODATA means no HCI commands were needed (e.g. if
6244 * the adapter is powered off).
6245 */
6246 if (err == -ENODATA)
6247 err = cmd->cmd_complete(cmd, MGMT_STATUS_SUCCESS);
6248 mgmt_pending_remove(cmd);
6249 }
6250
6251 unlock:
6252 hci_dev_unlock(hdev);
6253 return err;
6254 }
6255
6256 static void device_removed(struct sock *sk, struct hci_dev *hdev,
6257 bdaddr_t *bdaddr, u8 type)
6258 {
6259 struct mgmt_ev_device_removed ev;
6260
6261 bacpy(&ev.addr.bdaddr, bdaddr);
6262 ev.addr.type = type;
6263
6264 mgmt_event(MGMT_EV_DEVICE_REMOVED, hdev, &ev, sizeof(ev), sk);
6265 }
6266
6267 static void remove_device_complete(struct hci_dev *hdev, u8 status, u16 opcode)
6268 {
6269 struct mgmt_pending_cmd *cmd;
6270
6271 BT_DBG("status 0x%02x", status);
6272
6273 hci_dev_lock(hdev);
6274
6275 cmd = pending_find(MGMT_OP_REMOVE_DEVICE, hdev);
6276 if (!cmd)
6277 goto unlock;
6278
6279 cmd->cmd_complete(cmd, mgmt_status(status));
6280 mgmt_pending_remove(cmd);
6281
6282 unlock:
6283 hci_dev_unlock(hdev);
6284 }
6285
6286 static int remove_device(struct sock *sk, struct hci_dev *hdev,
6287 void *data, u16 len)
6288 {
6289 struct mgmt_cp_remove_device *cp = data;
6290 struct mgmt_pending_cmd *cmd;
6291 struct hci_request req;
6292 int err;
6293
6294 BT_DBG("%s", hdev->name);
6295
6296 hci_req_init(&req, hdev);
6297
6298 hci_dev_lock(hdev);
6299
6300 cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_DEVICE, hdev, data, len);
6301 if (!cmd) {
6302 err = -ENOMEM;
6303 goto unlock;
6304 }
6305
6306 cmd->cmd_complete = addr_cmd_complete;
6307
6308 if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
6309 struct hci_conn_params *params;
6310 u8 addr_type;
6311
6312 if (!bdaddr_type_is_valid(cp->addr.type)) {
6313 err = cmd->cmd_complete(cmd,
6314 MGMT_STATUS_INVALID_PARAMS);
6315 mgmt_pending_remove(cmd);
6316 goto unlock;
6317 }
6318
6319 if (cp->addr.type == BDADDR_BREDR) {
6320 err = hci_bdaddr_list_del(&hdev->whitelist,
6321 &cp->addr.bdaddr,
6322 cp->addr.type);
6323 if (err) {
6324 err = cmd->cmd_complete(cmd,
6325 MGMT_STATUS_INVALID_PARAMS);
6326 mgmt_pending_remove(cmd);
6327 goto unlock;
6328 }
6329
6330 __hci_update_page_scan(&req);
6331
6332 device_removed(sk, hdev, &cp->addr.bdaddr,
6333 cp->addr.type);
6334 goto complete;
6335 }
6336
6337 if (cp->addr.type == BDADDR_LE_PUBLIC)
6338 addr_type = ADDR_LE_DEV_PUBLIC;
6339 else
6340 addr_type = ADDR_LE_DEV_RANDOM;
6341
6342 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
6343 addr_type);
6344 if (!params) {
6345 err = cmd->cmd_complete(cmd,
6346 MGMT_STATUS_INVALID_PARAMS);
6347 mgmt_pending_remove(cmd);
6348 goto unlock;
6349 }
6350
6351 if (params->auto_connect == HCI_AUTO_CONN_DISABLED) {
6352 err = cmd->cmd_complete(cmd,
6353 MGMT_STATUS_INVALID_PARAMS);
6354 mgmt_pending_remove(cmd);
6355 goto unlock;
6356 }
6357
6358 list_del(&params->action);
6359 list_del(&params->list);
6360 kfree(params);
6361 __hci_update_background_scan(&req);
6362
6363 device_removed(sk, hdev, &cp->addr.bdaddr, cp->addr.type);
6364 } else {
6365 struct hci_conn_params *p, *tmp;
6366 struct bdaddr_list *b, *btmp;
6367
6368 if (cp->addr.type) {
6369 err = cmd->cmd_complete(cmd,
6370 MGMT_STATUS_INVALID_PARAMS);
6371 mgmt_pending_remove(cmd);
6372 goto unlock;
6373 }
6374
6375 list_for_each_entry_safe(b, btmp, &hdev->whitelist, list) {
6376 device_removed(sk, hdev, &b->bdaddr, b->bdaddr_type);
6377 list_del(&b->list);
6378 kfree(b);
6379 }
6380
6381 __hci_update_page_scan(&req);
6382
6383 list_for_each_entry_safe(p, tmp, &hdev->le_conn_params, list) {
6384 if (p->auto_connect == HCI_AUTO_CONN_DISABLED)
6385 continue;
6386 device_removed(sk, hdev, &p->addr, p->addr_type);
6387 list_del(&p->action);
6388 list_del(&p->list);
6389 kfree(p);
6390 }
6391
6392 BT_DBG("All LE connection parameters were removed");
6393
6394 __hci_update_background_scan(&req);
6395 }
6396
6397 complete:
6398 err = hci_req_run(&req, remove_device_complete);
6399 if (err < 0) {
6400 /* ENODATA means no HCI commands were needed (e.g. if
6401 * the adapter is powered off).
6402 */
6403 if (err == -ENODATA)
6404 err = cmd->cmd_complete(cmd, MGMT_STATUS_SUCCESS);
6405 mgmt_pending_remove(cmd);
6406 }
6407
6408 unlock:
6409 hci_dev_unlock(hdev);
6410 return err;
6411 }
6412
6413 static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
6414 u16 len)
6415 {
6416 struct mgmt_cp_load_conn_param *cp = data;
6417 const u16 max_param_count = ((U16_MAX - sizeof(*cp)) /
6418 sizeof(struct mgmt_conn_param));
6419 u16 param_count, expected_len;
6420 int i;
6421
6422 if (!lmp_le_capable(hdev))
6423 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6424 MGMT_STATUS_NOT_SUPPORTED);
6425
6426 param_count = __le16_to_cpu(cp->param_count);
6427 if (param_count > max_param_count) {
6428 BT_ERR("load_conn_param: too big param_count value %u",
6429 param_count);
6430 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6431 MGMT_STATUS_INVALID_PARAMS);
6432 }
6433
6434 expected_len = sizeof(*cp) + param_count *
6435 sizeof(struct mgmt_conn_param);
6436 if (expected_len != len) {
6437 BT_ERR("load_conn_param: expected %u bytes, got %u bytes",
6438 expected_len, len);
6439 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
6440 MGMT_STATUS_INVALID_PARAMS);
6441 }
6442
6443 BT_DBG("%s param_count %u", hdev->name, param_count);
6444
6445 hci_dev_lock(hdev);
6446
6447 hci_conn_params_clear_disabled(hdev);
6448
6449 for (i = 0; i < param_count; i++) {
6450 struct mgmt_conn_param *param = &cp->params[i];
6451 struct hci_conn_params *hci_param;
6452 u16 min, max, latency, timeout;
6453 u8 addr_type;
6454
6455 BT_DBG("Adding %pMR (type %u)", &param->addr.bdaddr,
6456 param->addr.type);
6457
6458 if (param->addr.type == BDADDR_LE_PUBLIC) {
6459 addr_type = ADDR_LE_DEV_PUBLIC;
6460 } else if (param->addr.type == BDADDR_LE_RANDOM) {
6461 addr_type = ADDR_LE_DEV_RANDOM;
6462 } else {
6463 BT_ERR("Ignoring invalid connection parameters");
6464 continue;
6465 }
6466
6467 min = le16_to_cpu(param->min_interval);
6468 max = le16_to_cpu(param->max_interval);
6469 latency = le16_to_cpu(param->latency);
6470 timeout = le16_to_cpu(param->timeout);
6471
6472 BT_DBG("min 0x%04x max 0x%04x latency 0x%04x timeout 0x%04x",
6473 min, max, latency, timeout);
6474
6475 if (hci_check_conn_params(min, max, latency, timeout) < 0) {
6476 BT_ERR("Ignoring invalid connection parameters");
6477 continue;
6478 }
6479
6480 hci_param = hci_conn_params_add(hdev, &param->addr.bdaddr,
6481 addr_type);
6482 if (!hci_param) {
6483 BT_ERR("Failed to add connection parameters");
6484 continue;
6485 }
6486
6487 hci_param->conn_min_interval = min;
6488 hci_param->conn_max_interval = max;
6489 hci_param->conn_latency = latency;
6490 hci_param->supervision_timeout = timeout;
6491 }
6492
6493 hci_dev_unlock(hdev);
6494
6495 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM, 0,
6496 NULL, 0);
6497 }
6498
6499 static int set_external_config(struct sock *sk, struct hci_dev *hdev,
6500 void *data, u16 len)
6501 {
6502 struct mgmt_cp_set_external_config *cp = data;
6503 bool changed;
6504 int err;
6505
6506 BT_DBG("%s", hdev->name);
6507
6508 if (hdev_is_powered(hdev))
6509 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6510 MGMT_STATUS_REJECTED);
6511
6512 if (cp->config != 0x00 && cp->config != 0x01)
6513 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6514 MGMT_STATUS_INVALID_PARAMS);
6515
6516 if (!test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
6517 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
6518 MGMT_STATUS_NOT_SUPPORTED);
6519
6520 hci_dev_lock(hdev);
6521
6522 if (cp->config)
6523 changed = !hci_dev_test_and_set_flag(hdev, HCI_EXT_CONFIGURED);
6524 else
6525 changed = hci_dev_test_and_clear_flag(hdev, HCI_EXT_CONFIGURED);
6526
6527 err = send_options_rsp(sk, MGMT_OP_SET_EXTERNAL_CONFIG, hdev);
6528 if (err < 0)
6529 goto unlock;
6530
6531 if (!changed)
6532 goto unlock;
6533
6534 err = new_options(hdev, sk);
6535
6536 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED) == is_configured(hdev)) {
6537 mgmt_index_removed(hdev);
6538
6539 if (hci_dev_test_and_change_flag(hdev, HCI_UNCONFIGURED)) {
6540 hci_dev_set_flag(hdev, HCI_CONFIG);
6541 hci_dev_set_flag(hdev, HCI_AUTO_OFF);
6542
6543 queue_work(hdev->req_workqueue, &hdev->power_on);
6544 } else {
6545 set_bit(HCI_RAW, &hdev->flags);
6546 mgmt_index_added(hdev);
6547 }
6548 }
6549
6550 unlock:
6551 hci_dev_unlock(hdev);
6552 return err;
6553 }
6554
6555 static int set_public_address(struct sock *sk, struct hci_dev *hdev,
6556 void *data, u16 len)
6557 {
6558 struct mgmt_cp_set_public_address *cp = data;
6559 bool changed;
6560 int err;
6561
6562 BT_DBG("%s", hdev->name);
6563
6564 if (hdev_is_powered(hdev))
6565 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6566 MGMT_STATUS_REJECTED);
6567
6568 if (!bacmp(&cp->bdaddr, BDADDR_ANY))
6569 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6570 MGMT_STATUS_INVALID_PARAMS);
6571
6572 if (!hdev->set_bdaddr)
6573 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
6574 MGMT_STATUS_NOT_SUPPORTED);
6575
6576 hci_dev_lock(hdev);
6577
6578 changed = !!bacmp(&hdev->public_addr, &cp->bdaddr);
6579 bacpy(&hdev->public_addr, &cp->bdaddr);
6580
6581 err = send_options_rsp(sk, MGMT_OP_SET_PUBLIC_ADDRESS, hdev);
6582 if (err < 0)
6583 goto unlock;
6584
6585 if (!changed)
6586 goto unlock;
6587
6588 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
6589 err = new_options(hdev, sk);
6590
6591 if (is_configured(hdev)) {
6592 mgmt_index_removed(hdev);
6593
6594 hci_dev_clear_flag(hdev, HCI_UNCONFIGURED);
6595
6596 hci_dev_set_flag(hdev, HCI_CONFIG);
6597 hci_dev_set_flag(hdev, HCI_AUTO_OFF);
6598
6599 queue_work(hdev->req_workqueue, &hdev->power_on);
6600 }
6601
6602 unlock:
6603 hci_dev_unlock(hdev);
6604 return err;
6605 }
6606
6607 static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
6608 u8 data_len)
6609 {
6610 eir[eir_len++] = sizeof(type) + data_len;
6611 eir[eir_len++] = type;
6612 memcpy(&eir[eir_len], data, data_len);
6613 eir_len += data_len;
6614
6615 return eir_len;
6616 }
6617
6618 static void read_local_oob_ext_data_complete(struct hci_dev *hdev, u8 status,
6619 u16 opcode, struct sk_buff *skb)
6620 {
6621 const struct mgmt_cp_read_local_oob_ext_data *mgmt_cp;
6622 struct mgmt_rp_read_local_oob_ext_data *mgmt_rp;
6623 u8 *h192, *r192, *h256, *r256;
6624 struct mgmt_pending_cmd *cmd;
6625 u16 eir_len;
6626 int err;
6627
6628 BT_DBG("%s status %u", hdev->name, status);
6629
6630 cmd = pending_find(MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev);
6631 if (!cmd)
6632 return;
6633
6634 mgmt_cp = cmd->param;
6635
6636 if (status) {
6637 status = mgmt_status(status);
6638 eir_len = 0;
6639
6640 h192 = NULL;
6641 r192 = NULL;
6642 h256 = NULL;
6643 r256 = NULL;
6644 } else if (opcode == HCI_OP_READ_LOCAL_OOB_DATA) {
6645 struct hci_rp_read_local_oob_data *rp;
6646
6647 if (skb->len != sizeof(*rp)) {
6648 status = MGMT_STATUS_FAILED;
6649 eir_len = 0;
6650 } else {
6651 status = MGMT_STATUS_SUCCESS;
6652 rp = (void *)skb->data;
6653
6654 eir_len = 5 + 18 + 18;
6655 h192 = rp->hash;
6656 r192 = rp->rand;
6657 h256 = NULL;
6658 r256 = NULL;
6659 }
6660 } else {
6661 struct hci_rp_read_local_oob_ext_data *rp;
6662
6663 if (skb->len != sizeof(*rp)) {
6664 status = MGMT_STATUS_FAILED;
6665 eir_len = 0;
6666 } else {
6667 status = MGMT_STATUS_SUCCESS;
6668 rp = (void *)skb->data;
6669
6670 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6671 eir_len = 5 + 18 + 18;
6672 h192 = NULL;
6673 r192 = NULL;
6674 } else {
6675 eir_len = 5 + 18 + 18 + 18 + 18;
6676 h192 = rp->hash192;
6677 r192 = rp->rand192;
6678 }
6679
6680 h256 = rp->hash256;
6681 r256 = rp->rand256;
6682 }
6683 }
6684
6685 mgmt_rp = kmalloc(sizeof(*mgmt_rp) + eir_len, GFP_KERNEL);
6686 if (!mgmt_rp)
6687 goto done;
6688
6689 if (status)
6690 goto send_rsp;
6691
6692 eir_len = eir_append_data(mgmt_rp->eir, 0, EIR_CLASS_OF_DEV,
6693 hdev->dev_class, 3);
6694
6695 if (h192 && r192) {
6696 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6697 EIR_SSP_HASH_C192, h192, 16);
6698 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6699 EIR_SSP_RAND_R192, r192, 16);
6700 }
6701
6702 if (h256 && r256) {
6703 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6704 EIR_SSP_HASH_C256, h256, 16);
6705 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
6706 EIR_SSP_RAND_R256, r256, 16);
6707 }
6708
6709 send_rsp:
6710 mgmt_rp->type = mgmt_cp->type;
6711 mgmt_rp->eir_len = cpu_to_le16(eir_len);
6712
6713 err = mgmt_cmd_complete(cmd->sk, hdev->id,
6714 MGMT_OP_READ_LOCAL_OOB_EXT_DATA, status,
6715 mgmt_rp, sizeof(*mgmt_rp) + eir_len);
6716 if (err < 0 || status)
6717 goto done;
6718
6719 hci_sock_set_flag(cmd->sk, HCI_MGMT_OOB_DATA_EVENTS);
6720
6721 err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
6722 mgmt_rp, sizeof(*mgmt_rp) + eir_len,
6723 HCI_MGMT_OOB_DATA_EVENTS, cmd->sk);
6724 done:
6725 kfree(mgmt_rp);
6726 mgmt_pending_remove(cmd);
6727 }
6728
6729 static int read_local_ssp_oob_req(struct hci_dev *hdev, struct sock *sk,
6730 struct mgmt_cp_read_local_oob_ext_data *cp)
6731 {
6732 struct mgmt_pending_cmd *cmd;
6733 struct hci_request req;
6734 int err;
6735
6736 cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev,
6737 cp, sizeof(*cp));
6738 if (!cmd)
6739 return -ENOMEM;
6740
6741 hci_req_init(&req, hdev);
6742
6743 if (bredr_sc_enabled(hdev))
6744 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_EXT_DATA, 0, NULL);
6745 else
6746 hci_req_add(&req, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
6747
6748 err = hci_req_run_skb(&req, read_local_oob_ext_data_complete);
6749 if (err < 0) {
6750 mgmt_pending_remove(cmd);
6751 return err;
6752 }
6753
6754 return 0;
6755 }
6756
6757 static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
6758 void *data, u16 data_len)
6759 {
6760 struct mgmt_cp_read_local_oob_ext_data *cp = data;
6761 struct mgmt_rp_read_local_oob_ext_data *rp;
6762 size_t rp_len;
6763 u16 eir_len;
6764 u8 status, flags, role, addr[7], hash[16], rand[16];
6765 int err;
6766
6767 BT_DBG("%s", hdev->name);
6768
6769 if (hdev_is_powered(hdev)) {
6770 switch (cp->type) {
6771 case BIT(BDADDR_BREDR):
6772 status = mgmt_bredr_support(hdev);
6773 if (status)
6774 eir_len = 0;
6775 else
6776 eir_len = 5;
6777 break;
6778 case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
6779 status = mgmt_le_support(hdev);
6780 if (status)
6781 eir_len = 0;
6782 else
6783 eir_len = 9 + 3 + 18 + 18 + 3;
6784 break;
6785 default:
6786 status = MGMT_STATUS_INVALID_PARAMS;
6787 eir_len = 0;
6788 break;
6789 }
6790 } else {
6791 status = MGMT_STATUS_NOT_POWERED;
6792 eir_len = 0;
6793 }
6794
6795 rp_len = sizeof(*rp) + eir_len;
6796 rp = kmalloc(rp_len, GFP_ATOMIC);
6797 if (!rp)
6798 return -ENOMEM;
6799
6800 if (status)
6801 goto complete;
6802
6803 hci_dev_lock(hdev);
6804
6805 eir_len = 0;
6806 switch (cp->type) {
6807 case BIT(BDADDR_BREDR):
6808 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
6809 err = read_local_ssp_oob_req(hdev, sk, cp);
6810 hci_dev_unlock(hdev);
6811 if (!err)
6812 goto done;
6813
6814 status = MGMT_STATUS_FAILED;
6815 goto complete;
6816 } else {
6817 eir_len = eir_append_data(rp->eir, eir_len,
6818 EIR_CLASS_OF_DEV,
6819 hdev->dev_class, 3);
6820 }
6821 break;
6822 case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
6823 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
6824 smp_generate_oob(hdev, hash, rand) < 0) {
6825 hci_dev_unlock(hdev);
6826 status = MGMT_STATUS_FAILED;
6827 goto complete;
6828 }
6829
6830 /* This should return the active RPA, but since the RPA
6831 * is only programmed on demand, it is really hard to fill
6832 * this in at the moment. For now disallow retrieving
6833 * local out-of-band data when privacy is in use.
6834 *
6835 * Returning the identity address will not help here since
6836 * pairing happens before the identity resolving key is
6837 * known and thus the connection establishment happens
6838 * based on the RPA and not the identity address.
6839 */
6840 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
6841 hci_dev_unlock(hdev);
6842 status = MGMT_STATUS_REJECTED;
6843 goto complete;
6844 }
6845
6846 if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
6847 !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
6848 (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
6849 bacmp(&hdev->static_addr, BDADDR_ANY))) {
6850 memcpy(addr, &hdev->static_addr, 6);
6851 addr[6] = 0x01;
6852 } else {
6853 memcpy(addr, &hdev->bdaddr, 6);
6854 addr[6] = 0x00;
6855 }
6856
6857 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_BDADDR,
6858 addr, sizeof(addr));
6859
6860 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
6861 role = 0x02;
6862 else
6863 role = 0x01;
6864
6865 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_ROLE,
6866 &role, sizeof(role));
6867
6868 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED)) {
6869 eir_len = eir_append_data(rp->eir, eir_len,
6870 EIR_LE_SC_CONFIRM,
6871 hash, sizeof(hash));
6872
6873 eir_len = eir_append_data(rp->eir, eir_len,
6874 EIR_LE_SC_RANDOM,
6875 rand, sizeof(rand));
6876 }
6877
6878 flags = get_adv_discov_flags(hdev);
6879
6880 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
6881 flags |= LE_AD_NO_BREDR;
6882
6883 eir_len = eir_append_data(rp->eir, eir_len, EIR_FLAGS,
6884 &flags, sizeof(flags));
6885 break;
6886 }
6887
6888 hci_dev_unlock(hdev);
6889
6890 hci_sock_set_flag(sk, HCI_MGMT_OOB_DATA_EVENTS);
6891
6892 status = MGMT_STATUS_SUCCESS;
6893
6894 complete:
6895 rp->type = cp->type;
6896 rp->eir_len = cpu_to_le16(eir_len);
6897
6898 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
6899 status, rp, sizeof(*rp) + eir_len);
6900 if (err < 0 || status)
6901 goto done;
6902
6903 err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
6904 rp, sizeof(*rp) + eir_len,
6905 HCI_MGMT_OOB_DATA_EVENTS, sk);
6906
6907 done:
6908 kfree(rp);
6909
6910 return err;
6911 }
6912
6913 static u32 get_supported_adv_flags(struct hci_dev *hdev)
6914 {
6915 u32 flags = 0;
6916
6917 flags |= MGMT_ADV_FLAG_CONNECTABLE;
6918 flags |= MGMT_ADV_FLAG_DISCOV;
6919 flags |= MGMT_ADV_FLAG_LIMITED_DISCOV;
6920 flags |= MGMT_ADV_FLAG_MANAGED_FLAGS;
6921
6922 if (hdev->adv_tx_power != HCI_TX_POWER_INVALID)
6923 flags |= MGMT_ADV_FLAG_TX_POWER;
6924
6925 return flags;
6926 }
6927
6928 static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
6929 void *data, u16 data_len)
6930 {
6931 struct mgmt_rp_read_adv_features *rp;
6932 size_t rp_len;
6933 int err, i;
6934 bool instance;
6935 struct adv_info *adv_instance;
6936 u32 supported_flags;
6937
6938 BT_DBG("%s", hdev->name);
6939
6940 if (!lmp_le_capable(hdev))
6941 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
6942 MGMT_STATUS_REJECTED);
6943
6944 hci_dev_lock(hdev);
6945
6946 rp_len = sizeof(*rp);
6947
6948 instance = hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE);
6949 if (instance)
6950 rp_len += hdev->adv_instance_cnt;
6951
6952 rp = kmalloc(rp_len, GFP_ATOMIC);
6953 if (!rp) {
6954 hci_dev_unlock(hdev);
6955 return -ENOMEM;
6956 }
6957
6958 supported_flags = get_supported_adv_flags(hdev);
6959
6960 rp->supported_flags = cpu_to_le32(supported_flags);
6961 rp->max_adv_data_len = HCI_MAX_AD_LENGTH;
6962 rp->max_scan_rsp_len = HCI_MAX_AD_LENGTH;
6963 rp->max_instances = HCI_MAX_ADV_INSTANCES;
6964
6965 if (instance) {
6966 i = 0;
6967 list_for_each_entry(adv_instance, &hdev->adv_instances, list) {
6968 if (i >= hdev->adv_instance_cnt)
6969 break;
6970
6971 rp->instance[i] = adv_instance->instance;
6972 i++;
6973 }
6974 rp->num_instances = hdev->adv_instance_cnt;
6975 } else {
6976 rp->num_instances = 0;
6977 }
6978
6979 hci_dev_unlock(hdev);
6980
6981 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
6982 MGMT_STATUS_SUCCESS, rp, rp_len);
6983
6984 kfree(rp);
6985
6986 return err;
6987 }
6988
6989 static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
6990 u8 len, bool is_adv_data)
6991 {
6992 u8 max_len = HCI_MAX_AD_LENGTH;
6993 int i, cur_len;
6994 bool flags_managed = false;
6995 bool tx_power_managed = false;
6996 u32 flags_params = MGMT_ADV_FLAG_DISCOV | MGMT_ADV_FLAG_LIMITED_DISCOV |
6997 MGMT_ADV_FLAG_MANAGED_FLAGS;
6998
6999 if (is_adv_data && (adv_flags & flags_params)) {
7000 flags_managed = true;
7001 max_len -= 3;
7002 }
7003
7004 if (is_adv_data && (adv_flags & MGMT_ADV_FLAG_TX_POWER)) {
7005 tx_power_managed = true;
7006 max_len -= 3;
7007 }
7008
7009 if (len > max_len)
7010 return false;
7011
7012 /* Make sure that the data is correctly formatted. */
7013 for (i = 0, cur_len = 0; i < len; i += (cur_len + 1)) {
7014 cur_len = data[i];
7015
7016 if (flags_managed && data[i + 1] == EIR_FLAGS)
7017 return false;
7018
7019 if (tx_power_managed && data[i + 1] == EIR_TX_POWER)
7020 return false;
7021
7022 /* If the current field length would exceed the total data
7023 * length, then it's invalid.
7024 */
7025 if (i + cur_len >= len)
7026 return false;
7027 }
7028
7029 return true;
7030 }
7031
7032 static void add_advertising_complete(struct hci_dev *hdev, u8 status,
7033 u16 opcode)
7034 {
7035 struct mgmt_pending_cmd *cmd;
7036 struct mgmt_cp_add_advertising *cp;
7037 struct mgmt_rp_add_advertising rp;
7038 struct adv_info *adv_instance, *n;
7039 u8 instance;
7040
7041 BT_DBG("status %d", status);
7042
7043 hci_dev_lock(hdev);
7044
7045 cmd = pending_find(MGMT_OP_ADD_ADVERTISING, hdev);
7046
7047 if (status)
7048 hci_dev_clear_flag(hdev, HCI_ADVERTISING_INSTANCE);
7049
7050 list_for_each_entry_safe(adv_instance, n, &hdev->adv_instances, list) {
7051 if (!adv_instance->pending)
7052 continue;
7053
7054 if (!status) {
7055 adv_instance->pending = false;
7056 continue;
7057 }
7058
7059 instance = adv_instance->instance;
7060
7061 if (hdev->cur_adv_instance == instance)
7062 cancel_adv_timeout(hdev);
7063
7064 hci_remove_adv_instance(hdev, instance);
7065 advertising_removed(cmd ? cmd->sk : NULL, hdev, instance);
7066 }
7067
7068 if (!cmd)
7069 goto unlock;
7070
7071 cp = cmd->param;
7072 rp.instance = cp->instance;
7073
7074 if (status)
7075 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
7076 mgmt_status(status));
7077 else
7078 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
7079 mgmt_status(status), &rp, sizeof(rp));
7080
7081 mgmt_pending_remove(cmd);
7082
7083 unlock:
7084 hci_dev_unlock(hdev);
7085 }
7086
7087 void mgmt_adv_timeout_expired(struct hci_dev *hdev)
7088 {
7089 u8 instance;
7090 struct hci_request req;
7091
7092 hdev->adv_instance_timeout = 0;
7093
7094 instance = get_current_adv_instance(hdev);
7095 if (instance == 0x00)
7096 return;
7097
7098 hci_dev_lock(hdev);
7099 hci_req_init(&req, hdev);
7100
7101 clear_adv_instance(hdev, &req, instance, false);
7102
7103 if (list_empty(&hdev->adv_instances))
7104 disable_advertising(&req);
7105
7106 if (!skb_queue_empty(&req.cmd_q))
7107 hci_req_run(&req, NULL);
7108
7109 hci_dev_unlock(hdev);
7110 }
7111
7112 static int add_advertising(struct sock *sk, struct hci_dev *hdev,
7113 void *data, u16 data_len)
7114 {
7115 struct mgmt_cp_add_advertising *cp = data;
7116 struct mgmt_rp_add_advertising rp;
7117 u32 flags;
7118 u32 supported_flags;
7119 u8 status;
7120 u16 timeout, duration;
7121 unsigned int prev_instance_cnt = hdev->adv_instance_cnt;
7122 u8 schedule_instance = 0;
7123 struct adv_info *next_instance;
7124 int err;
7125 struct mgmt_pending_cmd *cmd;
7126 struct hci_request req;
7127
7128 BT_DBG("%s", hdev->name);
7129
7130 status = mgmt_le_support(hdev);
7131 if (status)
7132 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7133 status);
7134
7135 flags = __le32_to_cpu(cp->flags);
7136 timeout = __le16_to_cpu(cp->timeout);
7137 duration = __le16_to_cpu(cp->duration);
7138
7139 /* The current implementation only supports a subset of the specified
7140 * flags.
7141 */
7142 supported_flags = get_supported_adv_flags(hdev);
7143 if (flags & ~supported_flags)
7144 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7145 MGMT_STATUS_INVALID_PARAMS);
7146
7147 hci_dev_lock(hdev);
7148
7149 if (timeout && !hdev_is_powered(hdev)) {
7150 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7151 MGMT_STATUS_REJECTED);
7152 goto unlock;
7153 }
7154
7155 if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
7156 pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
7157 pending_find(MGMT_OP_SET_LE, hdev)) {
7158 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7159 MGMT_STATUS_BUSY);
7160 goto unlock;
7161 }
7162
7163 if (!tlv_data_is_valid(hdev, flags, cp->data, cp->adv_data_len, true) ||
7164 !tlv_data_is_valid(hdev, flags, cp->data + cp->adv_data_len,
7165 cp->scan_rsp_len, false)) {
7166 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7167 MGMT_STATUS_INVALID_PARAMS);
7168 goto unlock;
7169 }
7170
7171 err = hci_add_adv_instance(hdev, cp->instance, flags,
7172 cp->adv_data_len, cp->data,
7173 cp->scan_rsp_len,
7174 cp->data + cp->adv_data_len,
7175 timeout, duration);
7176 if (err < 0) {
7177 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7178 MGMT_STATUS_FAILED);
7179 goto unlock;
7180 }
7181
7182 /* Only trigger an advertising added event if a new instance was
7183 * actually added.
7184 */
7185 if (hdev->adv_instance_cnt > prev_instance_cnt)
7186 advertising_added(sk, hdev, cp->instance);
7187
7188 hci_dev_set_flag(hdev, HCI_ADVERTISING_INSTANCE);
7189
7190 if (hdev->cur_adv_instance == cp->instance) {
7191 /* If the currently advertised instance is being changed then
7192 * cancel the current advertising and schedule the next
7193 * instance. If there is only one instance then the overridden
7194 * advertising data will be visible right away.
7195 */
7196 cancel_adv_timeout(hdev);
7197
7198 next_instance = hci_get_next_instance(hdev, cp->instance);
7199 if (next_instance)
7200 schedule_instance = next_instance->instance;
7201 } else if (!hdev->adv_instance_timeout) {
7202 /* Immediately advertise the new instance if no other
7203 * instance is currently being advertised.
7204 */
7205 schedule_instance = cp->instance;
7206 }
7207
7208 /* If the HCI_ADVERTISING flag is set or the device isn't powered or
7209 * there is no instance to be advertised then we have no HCI
7210 * communication to make. Simply return.
7211 */
7212 if (!hdev_is_powered(hdev) ||
7213 hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
7214 !schedule_instance) {
7215 rp.instance = cp->instance;
7216 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
7217 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7218 goto unlock;
7219 }
7220
7221 /* We're good to go, update advertising data, parameters, and start
7222 * advertising.
7223 */
7224 cmd = mgmt_pending_add(sk, MGMT_OP_ADD_ADVERTISING, hdev, data,
7225 data_len);
7226 if (!cmd) {
7227 err = -ENOMEM;
7228 goto unlock;
7229 }
7230
7231 hci_req_init(&req, hdev);
7232
7233 err = schedule_adv_instance(&req, schedule_instance, true);
7234
7235 if (!err)
7236 err = hci_req_run(&req, add_advertising_complete);
7237
7238 if (err < 0)
7239 mgmt_pending_remove(cmd);
7240
7241 unlock:
7242 hci_dev_unlock(hdev);
7243
7244 return err;
7245 }
7246
7247 static void remove_advertising_complete(struct hci_dev *hdev, u8 status,
7248 u16 opcode)
7249 {
7250 struct mgmt_pending_cmd *cmd;
7251 struct mgmt_cp_remove_advertising *cp;
7252 struct mgmt_rp_remove_advertising rp;
7253
7254 BT_DBG("status %d", status);
7255
7256 hci_dev_lock(hdev);
7257
7258 /* A failure status here only means that we failed to disable
7259 * advertising. Otherwise, the advertising instance has been removed,
7260 * so report success.
7261 */
7262 cmd = pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev);
7263 if (!cmd)
7264 goto unlock;
7265
7266 cp = cmd->param;
7267 rp.instance = cp->instance;
7268
7269 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, MGMT_STATUS_SUCCESS,
7270 &rp, sizeof(rp));
7271 mgmt_pending_remove(cmd);
7272
7273 unlock:
7274 hci_dev_unlock(hdev);
7275 }
7276
7277 static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
7278 void *data, u16 data_len)
7279 {
7280 struct mgmt_cp_remove_advertising *cp = data;
7281 struct mgmt_rp_remove_advertising rp;
7282 struct adv_info *adv_instance;
7283 int err;
7284 struct mgmt_pending_cmd *cmd;
7285 struct hci_request req;
7286
7287 BT_DBG("%s", hdev->name);
7288
7289 hci_dev_lock(hdev);
7290
7291 if (cp->instance)
7292 adv_instance = hci_find_adv_instance(hdev, cp->instance);
7293
7294 if (!(cp->instance == 0x00 || adv_instance)) {
7295 err = mgmt_cmd_status(sk, hdev->id,
7296 MGMT_OP_REMOVE_ADVERTISING,
7297 MGMT_STATUS_INVALID_PARAMS);
7298 goto unlock;
7299 }
7300
7301 if (pending_find(MGMT_OP_ADD_ADVERTISING, hdev) ||
7302 pending_find(MGMT_OP_REMOVE_ADVERTISING, hdev) ||
7303 pending_find(MGMT_OP_SET_LE, hdev)) {
7304 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
7305 MGMT_STATUS_BUSY);
7306 goto unlock;
7307 }
7308
7309 if (!hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE)) {
7310 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
7311 MGMT_STATUS_INVALID_PARAMS);
7312 goto unlock;
7313 }
7314
7315 hci_req_init(&req, hdev);
7316
7317 clear_adv_instance(hdev, &req, cp->instance, true);
7318
7319 if (list_empty(&hdev->adv_instances))
7320 disable_advertising(&req);
7321
7322 /* If no HCI commands have been collected so far or the HCI_ADVERTISING
7323 * flag is set or the device isn't powered then we have no HCI
7324 * communication to make. Simply return.
7325 */
7326 if (skb_queue_empty(&req.cmd_q) ||
7327 !hdev_is_powered(hdev) ||
7328 hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
7329 rp.instance = cp->instance;
7330 err = mgmt_cmd_complete(sk, hdev->id,
7331 MGMT_OP_REMOVE_ADVERTISING,
7332 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7333 goto unlock;
7334 }
7335
7336 cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_ADVERTISING, hdev, data,
7337 data_len);
7338 if (!cmd) {
7339 err = -ENOMEM;
7340 goto unlock;
7341 }
7342
7343 err = hci_req_run(&req, remove_advertising_complete);
7344 if (err < 0)
7345 mgmt_pending_remove(cmd);
7346
7347 unlock:
7348 hci_dev_unlock(hdev);
7349
7350 return err;
7351 }
7352
7353 static const struct hci_mgmt_handler mgmt_handlers[] = {
7354 { NULL }, /* 0x0000 (no command) */
7355 { read_version, MGMT_READ_VERSION_SIZE,
7356 HCI_MGMT_NO_HDEV |
7357 HCI_MGMT_UNTRUSTED },
7358 { read_commands, MGMT_READ_COMMANDS_SIZE,
7359 HCI_MGMT_NO_HDEV |
7360 HCI_MGMT_UNTRUSTED },
7361 { read_index_list, MGMT_READ_INDEX_LIST_SIZE,
7362 HCI_MGMT_NO_HDEV |
7363 HCI_MGMT_UNTRUSTED },
7364 { read_controller_info, MGMT_READ_INFO_SIZE,
7365 HCI_MGMT_UNTRUSTED },
7366 { set_powered, MGMT_SETTING_SIZE },
7367 { set_discoverable, MGMT_SET_DISCOVERABLE_SIZE },
7368 { set_connectable, MGMT_SETTING_SIZE },
7369 { set_fast_connectable, MGMT_SETTING_SIZE },
7370 { set_bondable, MGMT_SETTING_SIZE },
7371 { set_link_security, MGMT_SETTING_SIZE },
7372 { set_ssp, MGMT_SETTING_SIZE },
7373 { set_hs, MGMT_SETTING_SIZE },
7374 { set_le, MGMT_SETTING_SIZE },
7375 { set_dev_class, MGMT_SET_DEV_CLASS_SIZE },
7376 { set_local_name, MGMT_SET_LOCAL_NAME_SIZE },
7377 { add_uuid, MGMT_ADD_UUID_SIZE },
7378 { remove_uuid, MGMT_REMOVE_UUID_SIZE },
7379 { load_link_keys, MGMT_LOAD_LINK_KEYS_SIZE,
7380 HCI_MGMT_VAR_LEN },
7381 { load_long_term_keys, MGMT_LOAD_LONG_TERM_KEYS_SIZE,
7382 HCI_MGMT_VAR_LEN },
7383 { disconnect, MGMT_DISCONNECT_SIZE },
7384 { get_connections, MGMT_GET_CONNECTIONS_SIZE },
7385 { pin_code_reply, MGMT_PIN_CODE_REPLY_SIZE },
7386 { pin_code_neg_reply, MGMT_PIN_CODE_NEG_REPLY_SIZE },
7387 { set_io_capability, MGMT_SET_IO_CAPABILITY_SIZE },
7388 { pair_device, MGMT_PAIR_DEVICE_SIZE },
7389 { cancel_pair_device, MGMT_CANCEL_PAIR_DEVICE_SIZE },
7390 { unpair_device, MGMT_UNPAIR_DEVICE_SIZE },
7391 { user_confirm_reply, MGMT_USER_CONFIRM_REPLY_SIZE },
7392 { user_confirm_neg_reply, MGMT_USER_CONFIRM_NEG_REPLY_SIZE },
7393 { user_passkey_reply, MGMT_USER_PASSKEY_REPLY_SIZE },
7394 { user_passkey_neg_reply, MGMT_USER_PASSKEY_NEG_REPLY_SIZE },
7395 { read_local_oob_data, MGMT_READ_LOCAL_OOB_DATA_SIZE },
7396 { add_remote_oob_data, MGMT_ADD_REMOTE_OOB_DATA_SIZE,
7397 HCI_MGMT_VAR_LEN },
7398 { remove_remote_oob_data, MGMT_REMOVE_REMOTE_OOB_DATA_SIZE },
7399 { start_discovery, MGMT_START_DISCOVERY_SIZE },
7400 { stop_discovery, MGMT_STOP_DISCOVERY_SIZE },
7401 { confirm_name, MGMT_CONFIRM_NAME_SIZE },
7402 { block_device, MGMT_BLOCK_DEVICE_SIZE },
7403 { unblock_device, MGMT_UNBLOCK_DEVICE_SIZE },
7404 { set_device_id, MGMT_SET_DEVICE_ID_SIZE },
7405 { set_advertising, MGMT_SETTING_SIZE },
7406 { set_bredr, MGMT_SETTING_SIZE },
7407 { set_static_address, MGMT_SET_STATIC_ADDRESS_SIZE },
7408 { set_scan_params, MGMT_SET_SCAN_PARAMS_SIZE },
7409 { set_secure_conn, MGMT_SETTING_SIZE },
7410 { set_debug_keys, MGMT_SETTING_SIZE },
7411 { set_privacy, MGMT_SET_PRIVACY_SIZE },
7412 { load_irks, MGMT_LOAD_IRKS_SIZE,
7413 HCI_MGMT_VAR_LEN },
7414 { get_conn_info, MGMT_GET_CONN_INFO_SIZE },
7415 { get_clock_info, MGMT_GET_CLOCK_INFO_SIZE },
7416 { add_device, MGMT_ADD_DEVICE_SIZE },
7417 { remove_device, MGMT_REMOVE_DEVICE_SIZE },
7418 { load_conn_param, MGMT_LOAD_CONN_PARAM_SIZE,
7419 HCI_MGMT_VAR_LEN },
7420 { read_unconf_index_list, MGMT_READ_UNCONF_INDEX_LIST_SIZE,
7421 HCI_MGMT_NO_HDEV |
7422 HCI_MGMT_UNTRUSTED },
7423 { read_config_info, MGMT_READ_CONFIG_INFO_SIZE,
7424 HCI_MGMT_UNCONFIGURED |
7425 HCI_MGMT_UNTRUSTED },
7426 { set_external_config, MGMT_SET_EXTERNAL_CONFIG_SIZE,
7427 HCI_MGMT_UNCONFIGURED },
7428 { set_public_address, MGMT_SET_PUBLIC_ADDRESS_SIZE,
7429 HCI_MGMT_UNCONFIGURED },
7430 { start_service_discovery, MGMT_START_SERVICE_DISCOVERY_SIZE,
7431 HCI_MGMT_VAR_LEN },
7432 { read_local_oob_ext_data, MGMT_READ_LOCAL_OOB_EXT_DATA_SIZE },
7433 { read_ext_index_list, MGMT_READ_EXT_INDEX_LIST_SIZE,
7434 HCI_MGMT_NO_HDEV |
7435 HCI_MGMT_UNTRUSTED },
7436 { read_adv_features, MGMT_READ_ADV_FEATURES_SIZE },
7437 { add_advertising, MGMT_ADD_ADVERTISING_SIZE,
7438 HCI_MGMT_VAR_LEN },
7439 { remove_advertising, MGMT_REMOVE_ADVERTISING_SIZE },
7440 };
7441
7442 void mgmt_index_added(struct hci_dev *hdev)
7443 {
7444 struct mgmt_ev_ext_index ev;
7445
7446 if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
7447 return;
7448
7449 switch (hdev->dev_type) {
7450 case HCI_BREDR:
7451 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
7452 mgmt_index_event(MGMT_EV_UNCONF_INDEX_ADDED, hdev,
7453 NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
7454 ev.type = 0x01;
7455 } else {
7456 mgmt_index_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0,
7457 HCI_MGMT_INDEX_EVENTS);
7458 ev.type = 0x00;
7459 }
7460 break;
7461 case HCI_AMP:
7462 ev.type = 0x02;
7463 break;
7464 default:
7465 return;
7466 }
7467
7468 ev.bus = hdev->bus;
7469
7470 mgmt_index_event(MGMT_EV_EXT_INDEX_ADDED, hdev, &ev, sizeof(ev),
7471 HCI_MGMT_EXT_INDEX_EVENTS);
7472 }
7473
7474 void mgmt_index_removed(struct hci_dev *hdev)
7475 {
7476 struct mgmt_ev_ext_index ev;
7477 u8 status = MGMT_STATUS_INVALID_INDEX;
7478
7479 if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
7480 return;
7481
7482 switch (hdev->dev_type) {
7483 case HCI_BREDR:
7484 mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
7485
7486 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
7487 mgmt_index_event(MGMT_EV_UNCONF_INDEX_REMOVED, hdev,
7488 NULL, 0, HCI_MGMT_UNCONF_INDEX_EVENTS);
7489 ev.type = 0x01;
7490 } else {
7491 mgmt_index_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0,
7492 HCI_MGMT_INDEX_EVENTS);
7493 ev.type = 0x00;
7494 }
7495 break;
7496 case HCI_AMP:
7497 ev.type = 0x02;
7498 break;
7499 default:
7500 return;
7501 }
7502
7503 ev.bus = hdev->bus;
7504
7505 mgmt_index_event(MGMT_EV_EXT_INDEX_REMOVED, hdev, &ev, sizeof(ev),
7506 HCI_MGMT_EXT_INDEX_EVENTS);
7507 }
7508
7509 /* This function requires the caller holds hdev->lock */
7510 static void restart_le_actions(struct hci_request *req)
7511 {
7512 struct hci_dev *hdev = req->hdev;
7513 struct hci_conn_params *p;
7514
7515 list_for_each_entry(p, &hdev->le_conn_params, list) {
7516 /* Needed for AUTO_OFF case where might not "really"
7517 * have been powered off.
7518 */
7519 list_del_init(&p->action);
7520
7521 switch (p->auto_connect) {
7522 case HCI_AUTO_CONN_DIRECT:
7523 case HCI_AUTO_CONN_ALWAYS:
7524 list_add(&p->action, &hdev->pend_le_conns);
7525 break;
7526 case HCI_AUTO_CONN_REPORT:
7527 list_add(&p->action, &hdev->pend_le_reports);
7528 break;
7529 default:
7530 break;
7531 }
7532 }
7533
7534 __hci_update_background_scan(req);
7535 }
7536
7537 static void powered_complete(struct hci_dev *hdev, u8 status, u16 opcode)
7538 {
7539 struct cmd_lookup match = { NULL, hdev };
7540
7541 BT_DBG("status 0x%02x", status);
7542
7543 if (!status) {
7544 /* Register the available SMP channels (BR/EDR and LE) only
7545 * when successfully powering on the controller. This late
7546 * registration is required so that LE SMP can clearly
7547 * decide if the public address or static address is used.
7548 */
7549 smp_register(hdev);
7550 }
7551
7552 hci_dev_lock(hdev);
7553
7554 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
7555
7556 new_settings(hdev, match.sk);
7557
7558 hci_dev_unlock(hdev);
7559
7560 if (match.sk)
7561 sock_put(match.sk);
7562 }
7563
7564 static int powered_update_hci(struct hci_dev *hdev)
7565 {
7566 struct hci_request req;
7567 struct adv_info *adv_instance;
7568 u8 link_sec;
7569
7570 hci_req_init(&req, hdev);
7571
7572 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED) &&
7573 !lmp_host_ssp_capable(hdev)) {
7574 u8 mode = 0x01;
7575
7576 hci_req_add(&req, HCI_OP_WRITE_SSP_MODE, sizeof(mode), &mode);
7577
7578 if (bredr_sc_enabled(hdev) && !lmp_host_sc_capable(hdev)) {
7579 u8 support = 0x01;
7580
7581 hci_req_add(&req, HCI_OP_WRITE_SC_SUPPORT,
7582 sizeof(support), &support);
7583 }
7584 }
7585
7586 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
7587 lmp_bredr_capable(hdev)) {
7588 struct hci_cp_write_le_host_supported cp;
7589
7590 cp.le = 0x01;
7591 cp.simul = 0x00;
7592
7593 /* Check first if we already have the right
7594 * host state (host features set)
7595 */
7596 if (cp.le != lmp_host_le_capable(hdev) ||
7597 cp.simul != lmp_host_le_br_capable(hdev))
7598 hci_req_add(&req, HCI_OP_WRITE_LE_HOST_SUPPORTED,
7599 sizeof(cp), &cp);
7600 }
7601
7602 if (lmp_le_capable(hdev)) {
7603 /* Make sure the controller has a good default for
7604 * advertising data. This also applies to the case
7605 * where BR/EDR was toggled during the AUTO_OFF phase.
7606 */
7607 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
7608 (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
7609 !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))) {
7610 update_adv_data(&req);
7611 update_scan_rsp_data(&req);
7612 }
7613
7614 if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
7615 hdev->cur_adv_instance == 0x00 &&
7616 !list_empty(&hdev->adv_instances)) {
7617 adv_instance = list_first_entry(&hdev->adv_instances,
7618 struct adv_info, list);
7619 hdev->cur_adv_instance = adv_instance->instance;
7620 }
7621
7622 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
7623 enable_advertising(&req);
7624 else if (hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE) &&
7625 hdev->cur_adv_instance)
7626 schedule_adv_instance(&req, hdev->cur_adv_instance,
7627 true);
7628
7629 restart_le_actions(&req);
7630 }
7631
7632 link_sec = hci_dev_test_flag(hdev, HCI_LINK_SECURITY);
7633 if (link_sec != test_bit(HCI_AUTH, &hdev->flags))
7634 hci_req_add(&req, HCI_OP_WRITE_AUTH_ENABLE,
7635 sizeof(link_sec), &link_sec);
7636
7637 if (lmp_bredr_capable(hdev)) {
7638 if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
7639 write_fast_connectable(&req, true);
7640 else
7641 write_fast_connectable(&req, false);
7642 __hci_update_page_scan(&req);
7643 update_class(&req);
7644 update_name(&req);
7645 update_eir(&req);
7646 }
7647
7648 return hci_req_run(&req, powered_complete);
7649 }
7650
7651 int mgmt_powered(struct hci_dev *hdev, u8 powered)
7652 {
7653 struct cmd_lookup match = { NULL, hdev };
7654 u8 status, zero_cod[] = { 0, 0, 0 };
7655 int err;
7656
7657 if (!hci_dev_test_flag(hdev, HCI_MGMT))
7658 return 0;
7659
7660 if (powered) {
7661 if (powered_update_hci(hdev) == 0)
7662 return 0;
7663
7664 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp,
7665 &match);
7666 goto new_settings;
7667 }
7668
7669 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
7670
7671 /* If the power off is because of hdev unregistration let
7672 * use the appropriate INVALID_INDEX status. Otherwise use
7673 * NOT_POWERED. We cover both scenarios here since later in
7674 * mgmt_index_removed() any hci_conn callbacks will have already
7675 * been triggered, potentially causing misleading DISCONNECTED
7676 * status responses.
7677 */
7678 if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
7679 status = MGMT_STATUS_INVALID_INDEX;
7680 else
7681 status = MGMT_STATUS_NOT_POWERED;
7682
7683 mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &status);
7684
7685 if (memcmp(hdev->dev_class, zero_cod, sizeof(zero_cod)) != 0)
7686 mgmt_generic_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
7687 zero_cod, sizeof(zero_cod), NULL);
7688
7689 new_settings:
7690 err = new_settings(hdev, match.sk);
7691
7692 if (match.sk)
7693 sock_put(match.sk);
7694
7695 return err;
7696 }
7697
7698 void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
7699 {
7700 struct mgmt_pending_cmd *cmd;
7701 u8 status;
7702
7703 cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
7704 if (!cmd)
7705 return;
7706
7707 if (err == -ERFKILL)
7708 status = MGMT_STATUS_RFKILLED;
7709 else
7710 status = MGMT_STATUS_FAILED;
7711
7712 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
7713
7714 mgmt_pending_remove(cmd);
7715 }
7716
7717 void mgmt_discoverable_timeout(struct hci_dev *hdev)
7718 {
7719 struct hci_request req;
7720
7721 hci_dev_lock(hdev);
7722
7723 /* When discoverable timeout triggers, then just make sure
7724 * the limited discoverable flag is cleared. Even in the case
7725 * of a timeout triggered from general discoverable, it is
7726 * safe to unconditionally clear the flag.
7727 */
7728 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
7729 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
7730
7731 hci_req_init(&req, hdev);
7732 if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
7733 u8 scan = SCAN_PAGE;
7734 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE,
7735 sizeof(scan), &scan);
7736 }
7737 update_class(&req);
7738
7739 /* Advertising instances don't use the global discoverable setting, so
7740 * only update AD if advertising was enabled using Set Advertising.
7741 */
7742 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
7743 update_adv_data(&req);
7744
7745 hci_req_run(&req, NULL);
7746
7747 hdev->discov_timeout = 0;
7748
7749 new_settings(hdev, NULL);
7750
7751 hci_dev_unlock(hdev);
7752 }
7753
7754 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
7755 bool persistent)
7756 {
7757 struct mgmt_ev_new_link_key ev;
7758
7759 memset(&ev, 0, sizeof(ev));
7760
7761 ev.store_hint = persistent;
7762 bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
7763 ev.key.addr.type = BDADDR_BREDR;
7764 ev.key.type = key->type;
7765 memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE);
7766 ev.key.pin_len = key->pin_len;
7767
7768 mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
7769 }
7770
7771 static u8 mgmt_ltk_type(struct smp_ltk *ltk)
7772 {
7773 switch (ltk->type) {
7774 case SMP_LTK:
7775 case SMP_LTK_SLAVE:
7776 if (ltk->authenticated)
7777 return MGMT_LTK_AUTHENTICATED;
7778 return MGMT_LTK_UNAUTHENTICATED;
7779 case SMP_LTK_P256:
7780 if (ltk->authenticated)
7781 return MGMT_LTK_P256_AUTH;
7782 return MGMT_LTK_P256_UNAUTH;
7783 case SMP_LTK_P256_DEBUG:
7784 return MGMT_LTK_P256_DEBUG;
7785 }
7786
7787 return MGMT_LTK_UNAUTHENTICATED;
7788 }
7789
7790 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent)
7791 {
7792 struct mgmt_ev_new_long_term_key ev;
7793
7794 memset(&ev, 0, sizeof(ev));
7795
7796 /* Devices using resolvable or non-resolvable random addresses
7797 * without providing an identity resolving key don't require
7798 * to store long term keys. Their addresses will change the
7799 * next time around.
7800 *
7801 * Only when a remote device provides an identity address
7802 * make sure the long term key is stored. If the remote
7803 * identity is known, the long term keys are internally
7804 * mapped to the identity address. So allow static random
7805 * and public addresses here.
7806 */
7807 if (key->bdaddr_type == ADDR_LE_DEV_RANDOM &&
7808 (key->bdaddr.b[5] & 0xc0) != 0xc0)
7809 ev.store_hint = 0x00;
7810 else
7811 ev.store_hint = persistent;
7812
7813 bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
7814 ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type);
7815 ev.key.type = mgmt_ltk_type(key);
7816 ev.key.enc_size = key->enc_size;
7817 ev.key.ediv = key->ediv;
7818 ev.key.rand = key->rand;
7819
7820 if (key->type == SMP_LTK)
7821 ev.key.master = 1;
7822
7823 /* Make sure we copy only the significant bytes based on the
7824 * encryption key size, and set the rest of the value to zeroes.
7825 */
7826 memcpy(ev.key.val, key->val, sizeof(key->enc_size));
7827 memset(ev.key.val + key->enc_size, 0,
7828 sizeof(ev.key.val) - key->enc_size);
7829
7830 mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), NULL);
7831 }
7832
7833 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk)
7834 {
7835 struct mgmt_ev_new_irk ev;
7836
7837 memset(&ev, 0, sizeof(ev));
7838
7839 /* For identity resolving keys from devices that are already
7840 * using a public address or static random address, do not
7841 * ask for storing this key. The identity resolving key really
7842 * is only mandatory for devices using resolvable random
7843 * addresses.
7844 *
7845 * Storing all identity resolving keys has the downside that
7846 * they will be also loaded on next boot of they system. More
7847 * identity resolving keys, means more time during scanning is
7848 * needed to actually resolve these addresses.
7849 */
7850 if (bacmp(&irk->rpa, BDADDR_ANY))
7851 ev.store_hint = 0x01;
7852 else
7853 ev.store_hint = 0x00;
7854
7855 bacpy(&ev.rpa, &irk->rpa);
7856 bacpy(&ev.irk.addr.bdaddr, &irk->bdaddr);
7857 ev.irk.addr.type = link_to_bdaddr(LE_LINK, irk->addr_type);
7858 memcpy(ev.irk.val, irk->val, sizeof(irk->val));
7859
7860 mgmt_event(MGMT_EV_NEW_IRK, hdev, &ev, sizeof(ev), NULL);
7861 }
7862
7863 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
7864 bool persistent)
7865 {
7866 struct mgmt_ev_new_csrk ev;
7867
7868 memset(&ev, 0, sizeof(ev));
7869
7870 /* Devices using resolvable or non-resolvable random addresses
7871 * without providing an identity resolving key don't require
7872 * to store signature resolving keys. Their addresses will change
7873 * the next time around.
7874 *
7875 * Only when a remote device provides an identity address
7876 * make sure the signature resolving key is stored. So allow
7877 * static random and public addresses here.
7878 */
7879 if (csrk->bdaddr_type == ADDR_LE_DEV_RANDOM &&
7880 (csrk->bdaddr.b[5] & 0xc0) != 0xc0)
7881 ev.store_hint = 0x00;
7882 else
7883 ev.store_hint = persistent;
7884
7885 bacpy(&ev.key.addr.bdaddr, &csrk->bdaddr);
7886 ev.key.addr.type = link_to_bdaddr(LE_LINK, csrk->bdaddr_type);
7887 ev.key.type = csrk->type;
7888 memcpy(ev.key.val, csrk->val, sizeof(csrk->val));
7889
7890 mgmt_event(MGMT_EV_NEW_CSRK, hdev, &ev, sizeof(ev), NULL);
7891 }
7892
7893 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
7894 u8 bdaddr_type, u8 store_hint, u16 min_interval,
7895 u16 max_interval, u16 latency, u16 timeout)
7896 {
7897 struct mgmt_ev_new_conn_param ev;
7898
7899 if (!hci_is_identity_address(bdaddr, bdaddr_type))
7900 return;
7901
7902 memset(&ev, 0, sizeof(ev));
7903 bacpy(&ev.addr.bdaddr, bdaddr);
7904 ev.addr.type = link_to_bdaddr(LE_LINK, bdaddr_type);
7905 ev.store_hint = store_hint;
7906 ev.min_interval = cpu_to_le16(min_interval);
7907 ev.max_interval = cpu_to_le16(max_interval);
7908 ev.latency = cpu_to_le16(latency);
7909 ev.timeout = cpu_to_le16(timeout);
7910
7911 mgmt_event(MGMT_EV_NEW_CONN_PARAM, hdev, &ev, sizeof(ev), NULL);
7912 }
7913
7914 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
7915 u32 flags, u8 *name, u8 name_len)
7916 {
7917 char buf[512];
7918 struct mgmt_ev_device_connected *ev = (void *) buf;
7919 u16 eir_len = 0;
7920
7921 bacpy(&ev->addr.bdaddr, &conn->dst);
7922 ev->addr.type = link_to_bdaddr(conn->type, conn->dst_type);
7923
7924 ev->flags = __cpu_to_le32(flags);
7925
7926 /* We must ensure that the EIR Data fields are ordered and
7927 * unique. Keep it simple for now and avoid the problem by not
7928 * adding any BR/EDR data to the LE adv.
7929 */
7930 if (conn->le_adv_data_len > 0) {
7931 memcpy(&ev->eir[eir_len],
7932 conn->le_adv_data, conn->le_adv_data_len);
7933 eir_len = conn->le_adv_data_len;
7934 } else {
7935 if (name_len > 0)
7936 eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE,
7937 name, name_len);
7938
7939 if (memcmp(conn->dev_class, "\0\0\0", 3) != 0)
7940 eir_len = eir_append_data(ev->eir, eir_len,
7941 EIR_CLASS_OF_DEV,
7942 conn->dev_class, 3);
7943 }
7944
7945 ev->eir_len = cpu_to_le16(eir_len);
7946
7947 mgmt_event(MGMT_EV_DEVICE_CONNECTED, hdev, buf,
7948 sizeof(*ev) + eir_len, NULL);
7949 }
7950
7951 static void disconnect_rsp(struct mgmt_pending_cmd *cmd, void *data)
7952 {
7953 struct sock **sk = data;
7954
7955 cmd->cmd_complete(cmd, 0);
7956
7957 *sk = cmd->sk;
7958 sock_hold(*sk);
7959
7960 mgmt_pending_remove(cmd);
7961 }
7962
7963 static void unpair_device_rsp(struct mgmt_pending_cmd *cmd, void *data)
7964 {
7965 struct hci_dev *hdev = data;
7966 struct mgmt_cp_unpair_device *cp = cmd->param;
7967
7968 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk);
7969
7970 cmd->cmd_complete(cmd, 0);
7971 mgmt_pending_remove(cmd);
7972 }
7973
7974 bool mgmt_powering_down(struct hci_dev *hdev)
7975 {
7976 struct mgmt_pending_cmd *cmd;
7977 struct mgmt_mode *cp;
7978
7979 cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
7980 if (!cmd)
7981 return false;
7982
7983 cp = cmd->param;
7984 if (!cp->val)
7985 return true;
7986
7987 return false;
7988 }
7989
7990 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
7991 u8 link_type, u8 addr_type, u8 reason,
7992 bool mgmt_connected)
7993 {
7994 struct mgmt_ev_device_disconnected ev;
7995 struct sock *sk = NULL;
7996
7997 /* The connection is still in hci_conn_hash so test for 1
7998 * instead of 0 to know if this is the last one.
7999 */
8000 if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) {
8001 cancel_delayed_work(&hdev->power_off);
8002 queue_work(hdev->req_workqueue, &hdev->power_off.work);
8003 }
8004
8005 if (!mgmt_connected)
8006 return;
8007
8008 if (link_type != ACL_LINK && link_type != LE_LINK)
8009 return;
8010
8011 mgmt_pending_foreach(MGMT_OP_DISCONNECT, hdev, disconnect_rsp, &sk);
8012
8013 bacpy(&ev.addr.bdaddr, bdaddr);
8014 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8015 ev.reason = reason;
8016
8017 mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk);
8018
8019 if (sk)
8020 sock_put(sk);
8021
8022 mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
8023 hdev);
8024 }
8025
8026 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
8027 u8 link_type, u8 addr_type, u8 status)
8028 {
8029 u8 bdaddr_type = link_to_bdaddr(link_type, addr_type);
8030 struct mgmt_cp_disconnect *cp;
8031 struct mgmt_pending_cmd *cmd;
8032
8033 mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
8034 hdev);
8035
8036 cmd = pending_find(MGMT_OP_DISCONNECT, hdev);
8037 if (!cmd)
8038 return;
8039
8040 cp = cmd->param;
8041
8042 if (bacmp(bdaddr, &cp->addr.bdaddr))
8043 return;
8044
8045 if (cp->addr.type != bdaddr_type)
8046 return;
8047
8048 cmd->cmd_complete(cmd, mgmt_status(status));
8049 mgmt_pending_remove(cmd);
8050 }
8051
8052 void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8053 u8 addr_type, u8 status)
8054 {
8055 struct mgmt_ev_connect_failed ev;
8056
8057 /* The connection is still in hci_conn_hash so test for 1
8058 * instead of 0 to know if this is the last one.
8059 */
8060 if (mgmt_powering_down(hdev) && hci_conn_count(hdev) == 1) {
8061 cancel_delayed_work(&hdev->power_off);
8062 queue_work(hdev->req_workqueue, &hdev->power_off.work);
8063 }
8064
8065 bacpy(&ev.addr.bdaddr, bdaddr);
8066 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8067 ev.status = mgmt_status(status);
8068
8069 mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
8070 }
8071
8072 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
8073 {
8074 struct mgmt_ev_pin_code_request ev;
8075
8076 bacpy(&ev.addr.bdaddr, bdaddr);
8077 ev.addr.type = BDADDR_BREDR;
8078 ev.secure = secure;
8079
8080 mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), NULL);
8081 }
8082
8083 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8084 u8 status)
8085 {
8086 struct mgmt_pending_cmd *cmd;
8087
8088 cmd = pending_find(MGMT_OP_PIN_CODE_REPLY, hdev);
8089 if (!cmd)
8090 return;
8091
8092 cmd->cmd_complete(cmd, mgmt_status(status));
8093 mgmt_pending_remove(cmd);
8094 }
8095
8096 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8097 u8 status)
8098 {
8099 struct mgmt_pending_cmd *cmd;
8100
8101 cmd = pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev);
8102 if (!cmd)
8103 return;
8104
8105 cmd->cmd_complete(cmd, mgmt_status(status));
8106 mgmt_pending_remove(cmd);
8107 }
8108
8109 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
8110 u8 link_type, u8 addr_type, u32 value,
8111 u8 confirm_hint)
8112 {
8113 struct mgmt_ev_user_confirm_request ev;
8114
8115 BT_DBG("%s", hdev->name);
8116
8117 bacpy(&ev.addr.bdaddr, bdaddr);
8118 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8119 ev.confirm_hint = confirm_hint;
8120 ev.value = cpu_to_le32(value);
8121
8122 return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev),
8123 NULL);
8124 }
8125
8126 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
8127 u8 link_type, u8 addr_type)
8128 {
8129 struct mgmt_ev_user_passkey_request ev;
8130
8131 BT_DBG("%s", hdev->name);
8132
8133 bacpy(&ev.addr.bdaddr, bdaddr);
8134 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8135
8136 return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev),
8137 NULL);
8138 }
8139
8140 static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8141 u8 link_type, u8 addr_type, u8 status,
8142 u8 opcode)
8143 {
8144 struct mgmt_pending_cmd *cmd;
8145
8146 cmd = pending_find(opcode, hdev);
8147 if (!cmd)
8148 return -ENOENT;
8149
8150 cmd->cmd_complete(cmd, mgmt_status(status));
8151 mgmt_pending_remove(cmd);
8152
8153 return 0;
8154 }
8155
8156 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8157 u8 link_type, u8 addr_type, u8 status)
8158 {
8159 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8160 status, MGMT_OP_USER_CONFIRM_REPLY);
8161 }
8162
8163 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8164 u8 link_type, u8 addr_type, u8 status)
8165 {
8166 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8167 status,
8168 MGMT_OP_USER_CONFIRM_NEG_REPLY);
8169 }
8170
8171 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8172 u8 link_type, u8 addr_type, u8 status)
8173 {
8174 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8175 status, MGMT_OP_USER_PASSKEY_REPLY);
8176 }
8177
8178 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
8179 u8 link_type, u8 addr_type, u8 status)
8180 {
8181 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
8182 status,
8183 MGMT_OP_USER_PASSKEY_NEG_REPLY);
8184 }
8185
8186 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
8187 u8 link_type, u8 addr_type, u32 passkey,
8188 u8 entered)
8189 {
8190 struct mgmt_ev_passkey_notify ev;
8191
8192 BT_DBG("%s", hdev->name);
8193
8194 bacpy(&ev.addr.bdaddr, bdaddr);
8195 ev.addr.type = link_to_bdaddr(link_type, addr_type);
8196 ev.passkey = __cpu_to_le32(passkey);
8197 ev.entered = entered;
8198
8199 return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL);
8200 }
8201
8202 void mgmt_auth_failed(struct hci_conn *conn, u8 hci_status)
8203 {
8204 struct mgmt_ev_auth_failed ev;
8205 struct mgmt_pending_cmd *cmd;
8206 u8 status = mgmt_status(hci_status);
8207
8208 bacpy(&ev.addr.bdaddr, &conn->dst);
8209 ev.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
8210 ev.status = status;
8211
8212 cmd = find_pairing(conn);
8213
8214 mgmt_event(MGMT_EV_AUTH_FAILED, conn->hdev, &ev, sizeof(ev),
8215 cmd ? cmd->sk : NULL);
8216
8217 if (cmd) {
8218 cmd->cmd_complete(cmd, status);
8219 mgmt_pending_remove(cmd);
8220 }
8221 }
8222
8223 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
8224 {
8225 struct cmd_lookup match = { NULL, hdev };
8226 bool changed;
8227
8228 if (status) {
8229 u8 mgmt_err = mgmt_status(status);
8230 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev,
8231 cmd_status_rsp, &mgmt_err);
8232 return;
8233 }
8234
8235 if (test_bit(HCI_AUTH, &hdev->flags))
8236 changed = !hci_dev_test_and_set_flag(hdev, HCI_LINK_SECURITY);
8237 else
8238 changed = hci_dev_test_and_clear_flag(hdev, HCI_LINK_SECURITY);
8239
8240 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
8241 &match);
8242
8243 if (changed)
8244 new_settings(hdev, match.sk);
8245
8246 if (match.sk)
8247 sock_put(match.sk);
8248 }
8249
8250 static void clear_eir(struct hci_request *req)
8251 {
8252 struct hci_dev *hdev = req->hdev;
8253 struct hci_cp_write_eir cp;
8254
8255 if (!lmp_ext_inq_capable(hdev))
8256 return;
8257
8258 memset(hdev->eir, 0, sizeof(hdev->eir));
8259
8260 memset(&cp, 0, sizeof(cp));
8261
8262 hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
8263 }
8264
8265 void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status)
8266 {
8267 struct cmd_lookup match = { NULL, hdev };
8268 struct hci_request req;
8269 bool changed = false;
8270
8271 if (status) {
8272 u8 mgmt_err = mgmt_status(status);
8273
8274 if (enable && hci_dev_test_and_clear_flag(hdev,
8275 HCI_SSP_ENABLED)) {
8276 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
8277 new_settings(hdev, NULL);
8278 }
8279
8280 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
8281 &mgmt_err);
8282 return;
8283 }
8284
8285 if (enable) {
8286 changed = !hci_dev_test_and_set_flag(hdev, HCI_SSP_ENABLED);
8287 } else {
8288 changed = hci_dev_test_and_clear_flag(hdev, HCI_SSP_ENABLED);
8289 if (!changed)
8290 changed = hci_dev_test_and_clear_flag(hdev,
8291 HCI_HS_ENABLED);
8292 else
8293 hci_dev_clear_flag(hdev, HCI_HS_ENABLED);
8294 }
8295
8296 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
8297
8298 if (changed)
8299 new_settings(hdev, match.sk);
8300
8301 if (match.sk)
8302 sock_put(match.sk);
8303
8304 hci_req_init(&req, hdev);
8305
8306 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
8307 if (hci_dev_test_flag(hdev, HCI_USE_DEBUG_KEYS))
8308 hci_req_add(&req, HCI_OP_WRITE_SSP_DEBUG_MODE,
8309 sizeof(enable), &enable);
8310 update_eir(&req);
8311 } else {
8312 clear_eir(&req);
8313 }
8314
8315 hci_req_run(&req, NULL);
8316 }
8317
8318 static void sk_lookup(struct mgmt_pending_cmd *cmd, void *data)
8319 {
8320 struct cmd_lookup *match = data;
8321
8322 if (match->sk == NULL) {
8323 match->sk = cmd->sk;
8324 sock_hold(match->sk);
8325 }
8326 }
8327
8328 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
8329 u8 status)
8330 {
8331 struct cmd_lookup match = { NULL, hdev, mgmt_status(status) };
8332
8333 mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, sk_lookup, &match);
8334 mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, sk_lookup, &match);
8335 mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, sk_lookup, &match);
8336
8337 if (!status)
8338 mgmt_generic_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
8339 dev_class, 3, NULL);
8340
8341 if (match.sk)
8342 sock_put(match.sk);
8343 }
8344
8345 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
8346 {
8347 struct mgmt_cp_set_local_name ev;
8348 struct mgmt_pending_cmd *cmd;
8349
8350 if (status)
8351 return;
8352
8353 memset(&ev, 0, sizeof(ev));
8354 memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
8355 memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH);
8356
8357 cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
8358 if (!cmd) {
8359 memcpy(hdev->dev_name, name, sizeof(hdev->dev_name));
8360
8361 /* If this is a HCI command related to powering on the
8362 * HCI dev don't send any mgmt signals.
8363 */
8364 if (pending_find(MGMT_OP_SET_POWERED, hdev))
8365 return;
8366 }
8367
8368 mgmt_generic_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev),
8369 cmd ? cmd->sk : NULL);
8370 }
8371
8372 static inline bool has_uuid(u8 *uuid, u16 uuid_count, u8 (*uuids)[16])
8373 {
8374 int i;
8375
8376 for (i = 0; i < uuid_count; i++) {
8377 if (!memcmp(uuid, uuids[i], 16))
8378 return true;
8379 }
8380
8381 return false;
8382 }
8383
8384 static bool eir_has_uuids(u8 *eir, u16 eir_len, u16 uuid_count, u8 (*uuids)[16])
8385 {
8386 u16 parsed = 0;
8387
8388 while (parsed < eir_len) {
8389 u8 field_len = eir[0];
8390 u8 uuid[16];
8391 int i;
8392
8393 if (field_len == 0)
8394 break;
8395
8396 if (eir_len - parsed < field_len + 1)
8397 break;
8398
8399 switch (eir[1]) {
8400 case EIR_UUID16_ALL:
8401 case EIR_UUID16_SOME:
8402 for (i = 0; i + 3 <= field_len; i += 2) {
8403 memcpy(uuid, bluetooth_base_uuid, 16);
8404 uuid[13] = eir[i + 3];
8405 uuid[12] = eir[i + 2];
8406 if (has_uuid(uuid, uuid_count, uuids))
8407 return true;
8408 }
8409 break;
8410 case EIR_UUID32_ALL:
8411 case EIR_UUID32_SOME:
8412 for (i = 0; i + 5 <= field_len; i += 4) {
8413 memcpy(uuid, bluetooth_base_uuid, 16);
8414 uuid[15] = eir[i + 5];
8415 uuid[14] = eir[i + 4];
8416 uuid[13] = eir[i + 3];
8417 uuid[12] = eir[i + 2];
8418 if (has_uuid(uuid, uuid_count, uuids))
8419 return true;
8420 }
8421 break;
8422 case EIR_UUID128_ALL:
8423 case EIR_UUID128_SOME:
8424 for (i = 0; i + 17 <= field_len; i += 16) {
8425 memcpy(uuid, eir + i + 2, 16);
8426 if (has_uuid(uuid, uuid_count, uuids))
8427 return true;
8428 }
8429 break;
8430 }
8431
8432 parsed += field_len + 1;
8433 eir += field_len + 1;
8434 }
8435
8436 return false;
8437 }
8438
8439 static void restart_le_scan(struct hci_dev *hdev)
8440 {
8441 /* If controller is not scanning we are done. */
8442 if (!hci_dev_test_flag(hdev, HCI_LE_SCAN))
8443 return;
8444
8445 if (time_after(jiffies + DISCOV_LE_RESTART_DELAY,
8446 hdev->discovery.scan_start +
8447 hdev->discovery.scan_duration))
8448 return;
8449
8450 queue_delayed_work(hdev->workqueue, &hdev->le_scan_restart,
8451 DISCOV_LE_RESTART_DELAY);
8452 }
8453
8454 static bool is_filter_match(struct hci_dev *hdev, s8 rssi, u8 *eir,
8455 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
8456 {
8457 /* If a RSSI threshold has been specified, and
8458 * HCI_QUIRK_STRICT_DUPLICATE_FILTER is not set, then all results with
8459 * a RSSI smaller than the RSSI threshold will be dropped. If the quirk
8460 * is set, let it through for further processing, as we might need to
8461 * restart the scan.
8462 *
8463 * For BR/EDR devices (pre 1.2) providing no RSSI during inquiry,
8464 * the results are also dropped.
8465 */
8466 if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
8467 (rssi == HCI_RSSI_INVALID ||
8468 (rssi < hdev->discovery.rssi &&
8469 !test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks))))
8470 return false;
8471
8472 if (hdev->discovery.uuid_count != 0) {
8473 /* If a list of UUIDs is provided in filter, results with no
8474 * matching UUID should be dropped.
8475 */
8476 if (!eir_has_uuids(eir, eir_len, hdev->discovery.uuid_count,
8477 hdev->discovery.uuids) &&
8478 !eir_has_uuids(scan_rsp, scan_rsp_len,
8479 hdev->discovery.uuid_count,
8480 hdev->discovery.uuids))
8481 return false;
8482 }
8483
8484 /* If duplicate filtering does not report RSSI changes, then restart
8485 * scanning to ensure updated result with updated RSSI values.
8486 */
8487 if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks)) {
8488 restart_le_scan(hdev);
8489
8490 /* Validate RSSI value against the RSSI threshold once more. */
8491 if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
8492 rssi < hdev->discovery.rssi)
8493 return false;
8494 }
8495
8496 return true;
8497 }
8498
8499 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8500 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
8501 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
8502 {
8503 char buf[512];
8504 struct mgmt_ev_device_found *ev = (void *)buf;
8505 size_t ev_size;
8506
8507 /* Don't send events for a non-kernel initiated discovery. With
8508 * LE one exception is if we have pend_le_reports > 0 in which
8509 * case we're doing passive scanning and want these events.
8510 */
8511 if (!hci_discovery_active(hdev)) {
8512 if (link_type == ACL_LINK)
8513 return;
8514 if (link_type == LE_LINK && list_empty(&hdev->pend_le_reports))
8515 return;
8516 }
8517
8518 if (hdev->discovery.result_filtering) {
8519 /* We are using service discovery */
8520 if (!is_filter_match(hdev, rssi, eir, eir_len, scan_rsp,
8521 scan_rsp_len))
8522 return;
8523 }
8524
8525 /* Make sure that the buffer is big enough. The 5 extra bytes
8526 * are for the potential CoD field.
8527 */
8528 if (sizeof(*ev) + eir_len + scan_rsp_len + 5 > sizeof(buf))
8529 return;
8530
8531 memset(buf, 0, sizeof(buf));
8532
8533 /* In case of device discovery with BR/EDR devices (pre 1.2), the
8534 * RSSI value was reported as 0 when not available. This behavior
8535 * is kept when using device discovery. This is required for full
8536 * backwards compatibility with the API.
8537 *
8538 * However when using service discovery, the value 127 will be
8539 * returned when the RSSI is not available.
8540 */
8541 if (rssi == HCI_RSSI_INVALID && !hdev->discovery.report_invalid_rssi &&
8542 link_type == ACL_LINK)
8543 rssi = 0;
8544
8545 bacpy(&ev->addr.bdaddr, bdaddr);
8546 ev->addr.type = link_to_bdaddr(link_type, addr_type);
8547 ev->rssi = rssi;
8548 ev->flags = cpu_to_le32(flags);
8549
8550 if (eir_len > 0)
8551 /* Copy EIR or advertising data into event */
8552 memcpy(ev->eir, eir, eir_len);
8553
8554 if (dev_class && !eir_has_data_type(ev->eir, eir_len, EIR_CLASS_OF_DEV))
8555 eir_len = eir_append_data(ev->eir, eir_len, EIR_CLASS_OF_DEV,
8556 dev_class, 3);
8557
8558 if (scan_rsp_len > 0)
8559 /* Append scan response data to event */
8560 memcpy(ev->eir + eir_len, scan_rsp, scan_rsp_len);
8561
8562 ev->eir_len = cpu_to_le16(eir_len + scan_rsp_len);
8563 ev_size = sizeof(*ev) + eir_len + scan_rsp_len;
8564
8565 mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, ev_size, NULL);
8566 }
8567
8568 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
8569 u8 addr_type, s8 rssi, u8 *name, u8 name_len)
8570 {
8571 struct mgmt_ev_device_found *ev;
8572 char buf[sizeof(*ev) + HCI_MAX_NAME_LENGTH + 2];
8573 u16 eir_len;
8574
8575 ev = (struct mgmt_ev_device_found *) buf;
8576
8577 memset(buf, 0, sizeof(buf));
8578
8579 bacpy(&ev->addr.bdaddr, bdaddr);
8580 ev->addr.type = link_to_bdaddr(link_type, addr_type);
8581 ev->rssi = rssi;
8582
8583 eir_len = eir_append_data(ev->eir, 0, EIR_NAME_COMPLETE, name,
8584 name_len);
8585
8586 ev->eir_len = cpu_to_le16(eir_len);
8587
8588 mgmt_event(MGMT_EV_DEVICE_FOUND, hdev, ev, sizeof(*ev) + eir_len, NULL);
8589 }
8590
8591 void mgmt_discovering(struct hci_dev *hdev, u8 discovering)
8592 {
8593 struct mgmt_ev_discovering ev;
8594
8595 BT_DBG("%s discovering %u", hdev->name, discovering);
8596
8597 memset(&ev, 0, sizeof(ev));
8598 ev.type = hdev->discovery.type;
8599 ev.discovering = discovering;
8600
8601 mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
8602 }
8603
8604 static void adv_enable_complete(struct hci_dev *hdev, u8 status, u16 opcode)
8605 {
8606 BT_DBG("%s status %u", hdev->name, status);
8607 }
8608
8609 void mgmt_reenable_advertising(struct hci_dev *hdev)
8610 {
8611 struct hci_request req;
8612
8613 if (!hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
8614 !hci_dev_test_flag(hdev, HCI_ADVERTISING_INSTANCE))
8615 return;
8616
8617 hci_req_init(&req, hdev);
8618 enable_advertising(&req);
8619 hci_req_run(&req, adv_enable_complete);
8620 }
8621
8622 static struct hci_mgmt_chan chan = {
8623 .channel = HCI_CHANNEL_CONTROL,
8624 .handler_count = ARRAY_SIZE(mgmt_handlers),
8625 .handlers = mgmt_handlers,
8626 .hdev_init = mgmt_init_hdev,
8627 };
8628
8629 int mgmt_init(void)
8630 {
8631 return hci_mgmt_chan_register(&chan);
8632 }
8633
8634 void mgmt_exit(void)
8635 {
8636 hci_mgmt_chan_unregister(&chan);
8637 }
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