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printf: Remove unused 'bprintf'
[drm/drm-misc.git] / net / bluetooth / mgmt.c
blobb31192d473d09b663dc7babd107b4894088ebf6d
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 <linux/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 "smp.h"
37 #include "mgmt_util.h"
38 #include "mgmt_config.h"
39 #include "msft.h"
40 #include "eir.h"
41 #include "aosp.h"
42
43 #define MGMT_VERSION 1
44 #define MGMT_REVISION 23
45
46 static const u16 mgmt_commands[] = {
47 MGMT_OP_READ_INDEX_LIST,
48 MGMT_OP_READ_INFO,
49 MGMT_OP_SET_POWERED,
50 MGMT_OP_SET_DISCOVERABLE,
51 MGMT_OP_SET_CONNECTABLE,
52 MGMT_OP_SET_FAST_CONNECTABLE,
53 MGMT_OP_SET_BONDABLE,
54 MGMT_OP_SET_LINK_SECURITY,
55 MGMT_OP_SET_SSP,
56 MGMT_OP_SET_HS,
57 MGMT_OP_SET_LE,
58 MGMT_OP_SET_DEV_CLASS,
59 MGMT_OP_SET_LOCAL_NAME,
60 MGMT_OP_ADD_UUID,
61 MGMT_OP_REMOVE_UUID,
62 MGMT_OP_LOAD_LINK_KEYS,
63 MGMT_OP_LOAD_LONG_TERM_KEYS,
64 MGMT_OP_DISCONNECT,
65 MGMT_OP_GET_CONNECTIONS,
66 MGMT_OP_PIN_CODE_REPLY,
67 MGMT_OP_PIN_CODE_NEG_REPLY,
68 MGMT_OP_SET_IO_CAPABILITY,
69 MGMT_OP_PAIR_DEVICE,
70 MGMT_OP_CANCEL_PAIR_DEVICE,
71 MGMT_OP_UNPAIR_DEVICE,
72 MGMT_OP_USER_CONFIRM_REPLY,
73 MGMT_OP_USER_CONFIRM_NEG_REPLY,
74 MGMT_OP_USER_PASSKEY_REPLY,
75 MGMT_OP_USER_PASSKEY_NEG_REPLY,
76 MGMT_OP_READ_LOCAL_OOB_DATA,
77 MGMT_OP_ADD_REMOTE_OOB_DATA,
78 MGMT_OP_REMOVE_REMOTE_OOB_DATA,
79 MGMT_OP_START_DISCOVERY,
80 MGMT_OP_STOP_DISCOVERY,
81 MGMT_OP_CONFIRM_NAME,
82 MGMT_OP_BLOCK_DEVICE,
83 MGMT_OP_UNBLOCK_DEVICE,
84 MGMT_OP_SET_DEVICE_ID,
85 MGMT_OP_SET_ADVERTISING,
86 MGMT_OP_SET_BREDR,
87 MGMT_OP_SET_STATIC_ADDRESS,
88 MGMT_OP_SET_SCAN_PARAMS,
89 MGMT_OP_SET_SECURE_CONN,
90 MGMT_OP_SET_DEBUG_KEYS,
91 MGMT_OP_SET_PRIVACY,
92 MGMT_OP_LOAD_IRKS,
93 MGMT_OP_GET_CONN_INFO,
94 MGMT_OP_GET_CLOCK_INFO,
95 MGMT_OP_ADD_DEVICE,
96 MGMT_OP_REMOVE_DEVICE,
97 MGMT_OP_LOAD_CONN_PARAM,
98 MGMT_OP_READ_UNCONF_INDEX_LIST,
99 MGMT_OP_READ_CONFIG_INFO,
100 MGMT_OP_SET_EXTERNAL_CONFIG,
101 MGMT_OP_SET_PUBLIC_ADDRESS,
102 MGMT_OP_START_SERVICE_DISCOVERY,
103 MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
104 MGMT_OP_READ_EXT_INDEX_LIST,
105 MGMT_OP_READ_ADV_FEATURES,
106 MGMT_OP_ADD_ADVERTISING,
107 MGMT_OP_REMOVE_ADVERTISING,
108 MGMT_OP_GET_ADV_SIZE_INFO,
109 MGMT_OP_START_LIMITED_DISCOVERY,
110 MGMT_OP_READ_EXT_INFO,
111 MGMT_OP_SET_APPEARANCE,
112 MGMT_OP_GET_PHY_CONFIGURATION,
113 MGMT_OP_SET_PHY_CONFIGURATION,
114 MGMT_OP_SET_BLOCKED_KEYS,
115 MGMT_OP_SET_WIDEBAND_SPEECH,
116 MGMT_OP_READ_CONTROLLER_CAP,
117 MGMT_OP_READ_EXP_FEATURES_INFO,
118 MGMT_OP_SET_EXP_FEATURE,
119 MGMT_OP_READ_DEF_SYSTEM_CONFIG,
120 MGMT_OP_SET_DEF_SYSTEM_CONFIG,
121 MGMT_OP_READ_DEF_RUNTIME_CONFIG,
122 MGMT_OP_SET_DEF_RUNTIME_CONFIG,
123 MGMT_OP_GET_DEVICE_FLAGS,
124 MGMT_OP_SET_DEVICE_FLAGS,
125 MGMT_OP_READ_ADV_MONITOR_FEATURES,
126 MGMT_OP_ADD_ADV_PATTERNS_MONITOR,
127 MGMT_OP_REMOVE_ADV_MONITOR,
128 MGMT_OP_ADD_EXT_ADV_PARAMS,
129 MGMT_OP_ADD_EXT_ADV_DATA,
130 MGMT_OP_ADD_ADV_PATTERNS_MONITOR_RSSI,
131 MGMT_OP_SET_MESH_RECEIVER,
132 MGMT_OP_MESH_READ_FEATURES,
133 MGMT_OP_MESH_SEND,
134 MGMT_OP_MESH_SEND_CANCEL,
135 MGMT_OP_HCI_CMD_SYNC,
136 };
137
138 static const u16 mgmt_events[] = {
139 MGMT_EV_CONTROLLER_ERROR,
140 MGMT_EV_INDEX_ADDED,
141 MGMT_EV_INDEX_REMOVED,
142 MGMT_EV_NEW_SETTINGS,
143 MGMT_EV_CLASS_OF_DEV_CHANGED,
144 MGMT_EV_LOCAL_NAME_CHANGED,
145 MGMT_EV_NEW_LINK_KEY,
146 MGMT_EV_NEW_LONG_TERM_KEY,
147 MGMT_EV_DEVICE_CONNECTED,
148 MGMT_EV_DEVICE_DISCONNECTED,
149 MGMT_EV_CONNECT_FAILED,
150 MGMT_EV_PIN_CODE_REQUEST,
151 MGMT_EV_USER_CONFIRM_REQUEST,
152 MGMT_EV_USER_PASSKEY_REQUEST,
153 MGMT_EV_AUTH_FAILED,
154 MGMT_EV_DEVICE_FOUND,
155 MGMT_EV_DISCOVERING,
156 MGMT_EV_DEVICE_BLOCKED,
157 MGMT_EV_DEVICE_UNBLOCKED,
158 MGMT_EV_DEVICE_UNPAIRED,
159 MGMT_EV_PASSKEY_NOTIFY,
160 MGMT_EV_NEW_IRK,
161 MGMT_EV_NEW_CSRK,
162 MGMT_EV_DEVICE_ADDED,
163 MGMT_EV_DEVICE_REMOVED,
164 MGMT_EV_NEW_CONN_PARAM,
165 MGMT_EV_UNCONF_INDEX_ADDED,
166 MGMT_EV_UNCONF_INDEX_REMOVED,
167 MGMT_EV_NEW_CONFIG_OPTIONS,
168 MGMT_EV_EXT_INDEX_ADDED,
169 MGMT_EV_EXT_INDEX_REMOVED,
170 MGMT_EV_LOCAL_OOB_DATA_UPDATED,
171 MGMT_EV_ADVERTISING_ADDED,
172 MGMT_EV_ADVERTISING_REMOVED,
173 MGMT_EV_EXT_INFO_CHANGED,
174 MGMT_EV_PHY_CONFIGURATION_CHANGED,
175 MGMT_EV_EXP_FEATURE_CHANGED,
176 MGMT_EV_DEVICE_FLAGS_CHANGED,
177 MGMT_EV_ADV_MONITOR_ADDED,
178 MGMT_EV_ADV_MONITOR_REMOVED,
179 MGMT_EV_CONTROLLER_SUSPEND,
180 MGMT_EV_CONTROLLER_RESUME,
181 MGMT_EV_ADV_MONITOR_DEVICE_FOUND,
182 MGMT_EV_ADV_MONITOR_DEVICE_LOST,
183 };
184
185 static const u16 mgmt_untrusted_commands[] = {
186 MGMT_OP_READ_INDEX_LIST,
187 MGMT_OP_READ_INFO,
188 MGMT_OP_READ_UNCONF_INDEX_LIST,
189 MGMT_OP_READ_CONFIG_INFO,
190 MGMT_OP_READ_EXT_INDEX_LIST,
191 MGMT_OP_READ_EXT_INFO,
192 MGMT_OP_READ_CONTROLLER_CAP,
193 MGMT_OP_READ_EXP_FEATURES_INFO,
194 MGMT_OP_READ_DEF_SYSTEM_CONFIG,
195 MGMT_OP_READ_DEF_RUNTIME_CONFIG,
196 };
197
198 static const u16 mgmt_untrusted_events[] = {
199 MGMT_EV_INDEX_ADDED,
200 MGMT_EV_INDEX_REMOVED,
201 MGMT_EV_NEW_SETTINGS,
202 MGMT_EV_CLASS_OF_DEV_CHANGED,
203 MGMT_EV_LOCAL_NAME_CHANGED,
204 MGMT_EV_UNCONF_INDEX_ADDED,
205 MGMT_EV_UNCONF_INDEX_REMOVED,
206 MGMT_EV_NEW_CONFIG_OPTIONS,
207 MGMT_EV_EXT_INDEX_ADDED,
208 MGMT_EV_EXT_INDEX_REMOVED,
209 MGMT_EV_EXT_INFO_CHANGED,
210 MGMT_EV_EXP_FEATURE_CHANGED,
211 };
212
213 #define CACHE_TIMEOUT msecs_to_jiffies(2 * 1000)
214
215 #define ZERO_KEY "\x00\x00\x00\x00\x00\x00\x00\x00" \
216 "\x00\x00\x00\x00\x00\x00\x00\x00"
217
218 /* HCI to MGMT error code conversion table */
219 static const u8 mgmt_status_table[] = {
220 MGMT_STATUS_SUCCESS,
221 MGMT_STATUS_UNKNOWN_COMMAND, /* Unknown Command */
222 MGMT_STATUS_NOT_CONNECTED, /* No Connection */
223 MGMT_STATUS_FAILED, /* Hardware Failure */
224 MGMT_STATUS_CONNECT_FAILED, /* Page Timeout */
225 MGMT_STATUS_AUTH_FAILED, /* Authentication Failed */
226 MGMT_STATUS_AUTH_FAILED, /* PIN or Key Missing */
227 MGMT_STATUS_NO_RESOURCES, /* Memory Full */
228 MGMT_STATUS_TIMEOUT, /* Connection Timeout */
229 MGMT_STATUS_NO_RESOURCES, /* Max Number of Connections */
230 MGMT_STATUS_NO_RESOURCES, /* Max Number of SCO Connections */
231 MGMT_STATUS_ALREADY_CONNECTED, /* ACL Connection Exists */
232 MGMT_STATUS_BUSY, /* Command Disallowed */
233 MGMT_STATUS_NO_RESOURCES, /* Rejected Limited Resources */
234 MGMT_STATUS_REJECTED, /* Rejected Security */
235 MGMT_STATUS_REJECTED, /* Rejected Personal */
236 MGMT_STATUS_TIMEOUT, /* Host Timeout */
237 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Feature */
238 MGMT_STATUS_INVALID_PARAMS, /* Invalid Parameters */
239 MGMT_STATUS_DISCONNECTED, /* OE User Ended Connection */
240 MGMT_STATUS_NO_RESOURCES, /* OE Low Resources */
241 MGMT_STATUS_DISCONNECTED, /* OE Power Off */
242 MGMT_STATUS_DISCONNECTED, /* Connection Terminated */
243 MGMT_STATUS_BUSY, /* Repeated Attempts */
244 MGMT_STATUS_REJECTED, /* Pairing Not Allowed */
245 MGMT_STATUS_FAILED, /* Unknown LMP PDU */
246 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Remote Feature */
247 MGMT_STATUS_REJECTED, /* SCO Offset Rejected */
248 MGMT_STATUS_REJECTED, /* SCO Interval Rejected */
249 MGMT_STATUS_REJECTED, /* Air Mode Rejected */
250 MGMT_STATUS_INVALID_PARAMS, /* Invalid LMP Parameters */
251 MGMT_STATUS_FAILED, /* Unspecified Error */
252 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported LMP Parameter Value */
253 MGMT_STATUS_FAILED, /* Role Change Not Allowed */
254 MGMT_STATUS_TIMEOUT, /* LMP Response Timeout */
255 MGMT_STATUS_FAILED, /* LMP Error Transaction Collision */
256 MGMT_STATUS_FAILED, /* LMP PDU Not Allowed */
257 MGMT_STATUS_REJECTED, /* Encryption Mode Not Accepted */
258 MGMT_STATUS_FAILED, /* Unit Link Key Used */
259 MGMT_STATUS_NOT_SUPPORTED, /* QoS Not Supported */
260 MGMT_STATUS_TIMEOUT, /* Instant Passed */
261 MGMT_STATUS_NOT_SUPPORTED, /* Pairing Not Supported */
262 MGMT_STATUS_FAILED, /* Transaction Collision */
263 MGMT_STATUS_FAILED, /* Reserved for future use */
264 MGMT_STATUS_INVALID_PARAMS, /* Unacceptable Parameter */
265 MGMT_STATUS_REJECTED, /* QoS Rejected */
266 MGMT_STATUS_NOT_SUPPORTED, /* Classification Not Supported */
267 MGMT_STATUS_REJECTED, /* Insufficient Security */
268 MGMT_STATUS_INVALID_PARAMS, /* Parameter Out Of Range */
269 MGMT_STATUS_FAILED, /* Reserved for future use */
270 MGMT_STATUS_BUSY, /* Role Switch Pending */
271 MGMT_STATUS_FAILED, /* Reserved for future use */
272 MGMT_STATUS_FAILED, /* Slot Violation */
273 MGMT_STATUS_FAILED, /* Role Switch Failed */
274 MGMT_STATUS_INVALID_PARAMS, /* EIR Too Large */
275 MGMT_STATUS_NOT_SUPPORTED, /* Simple Pairing Not Supported */
276 MGMT_STATUS_BUSY, /* Host Busy Pairing */
277 MGMT_STATUS_REJECTED, /* Rejected, No Suitable Channel */
278 MGMT_STATUS_BUSY, /* Controller Busy */
279 MGMT_STATUS_INVALID_PARAMS, /* Unsuitable Connection Interval */
280 MGMT_STATUS_TIMEOUT, /* Directed Advertising Timeout */
281 MGMT_STATUS_AUTH_FAILED, /* Terminated Due to MIC Failure */
282 MGMT_STATUS_CONNECT_FAILED, /* Connection Establishment Failed */
283 MGMT_STATUS_CONNECT_FAILED, /* MAC Connection Failed */
284 };
285
286 static u8 mgmt_errno_status(int err)
287 {
288 switch (err) {
289 case 0:
290 return MGMT_STATUS_SUCCESS;
291 case -EPERM:
292 return MGMT_STATUS_REJECTED;
293 case -EINVAL:
294 return MGMT_STATUS_INVALID_PARAMS;
295 case -EOPNOTSUPP:
296 return MGMT_STATUS_NOT_SUPPORTED;
297 case -EBUSY:
298 return MGMT_STATUS_BUSY;
299 case -ETIMEDOUT:
300 return MGMT_STATUS_AUTH_FAILED;
301 case -ENOMEM:
302 return MGMT_STATUS_NO_RESOURCES;
303 case -EISCONN:
304 return MGMT_STATUS_ALREADY_CONNECTED;
305 case -ENOTCONN:
306 return MGMT_STATUS_DISCONNECTED;
307 }
308
309 return MGMT_STATUS_FAILED;
310 }
311
312 static u8 mgmt_status(int err)
313 {
314 if (err < 0)
315 return mgmt_errno_status(err);
316
317 if (err < ARRAY_SIZE(mgmt_status_table))
318 return mgmt_status_table[err];
319
320 return MGMT_STATUS_FAILED;
321 }
322
323 static int mgmt_index_event(u16 event, struct hci_dev *hdev, void *data,
324 u16 len, int flag)
325 {
326 return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
327 flag, NULL);
328 }
329
330 static int mgmt_limited_event(u16 event, struct hci_dev *hdev, void *data,
331 u16 len, int flag, struct sock *skip_sk)
332 {
333 return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
334 flag, skip_sk);
335 }
336
337 static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 len,
338 struct sock *skip_sk)
339 {
340 return mgmt_send_event(event, hdev, HCI_CHANNEL_CONTROL, data, len,
341 HCI_SOCK_TRUSTED, skip_sk);
342 }
343
344 static int mgmt_event_skb(struct sk_buff *skb, struct sock *skip_sk)
345 {
346 return mgmt_send_event_skb(HCI_CHANNEL_CONTROL, skb, HCI_SOCK_TRUSTED,
347 skip_sk);
348 }
349
350 static u8 le_addr_type(u8 mgmt_addr_type)
351 {
352 if (mgmt_addr_type == BDADDR_LE_PUBLIC)
353 return ADDR_LE_DEV_PUBLIC;
354 else
355 return ADDR_LE_DEV_RANDOM;
356 }
357
358 void mgmt_fill_version_info(void *ver)
359 {
360 struct mgmt_rp_read_version *rp = ver;
361
362 rp->version = MGMT_VERSION;
363 rp->revision = cpu_to_le16(MGMT_REVISION);
364 }
365
366 static int read_version(struct sock *sk, struct hci_dev *hdev, void *data,
367 u16 data_len)
368 {
369 struct mgmt_rp_read_version rp;
370
371 bt_dev_dbg(hdev, "sock %p", sk);
372
373 mgmt_fill_version_info(&rp);
374
375 return mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0,
376 &rp, sizeof(rp));
377 }
378
379 static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
380 u16 data_len)
381 {
382 struct mgmt_rp_read_commands *rp;
383 u16 num_commands, num_events;
384 size_t rp_size;
385 int i, err;
386
387 bt_dev_dbg(hdev, "sock %p", sk);
388
389 if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
390 num_commands = ARRAY_SIZE(mgmt_commands);
391 num_events = ARRAY_SIZE(mgmt_events);
392 } else {
393 num_commands = ARRAY_SIZE(mgmt_untrusted_commands);
394 num_events = ARRAY_SIZE(mgmt_untrusted_events);
395 }
396
397 rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
398
399 rp = kmalloc(rp_size, GFP_KERNEL);
400 if (!rp)
401 return -ENOMEM;
402
403 rp->num_commands = cpu_to_le16(num_commands);
404 rp->num_events = cpu_to_le16(num_events);
405
406 if (hci_sock_test_flag(sk, HCI_SOCK_TRUSTED)) {
407 __le16 *opcode = rp->opcodes;
408
409 for (i = 0; i < num_commands; i++, opcode++)
410 put_unaligned_le16(mgmt_commands[i], opcode);
411
412 for (i = 0; i < num_events; i++, opcode++)
413 put_unaligned_le16(mgmt_events[i], opcode);
414 } else {
415 __le16 *opcode = rp->opcodes;
416
417 for (i = 0; i < num_commands; i++, opcode++)
418 put_unaligned_le16(mgmt_untrusted_commands[i], opcode);
419
420 for (i = 0; i < num_events; i++, opcode++)
421 put_unaligned_le16(mgmt_untrusted_events[i], opcode);
422 }
423
424 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0,
425 rp, rp_size);
426 kfree(rp);
427
428 return err;
429 }
430
431 static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
432 u16 data_len)
433 {
434 struct mgmt_rp_read_index_list *rp;
435 struct hci_dev *d;
436 size_t rp_len;
437 u16 count;
438 int err;
439
440 bt_dev_dbg(hdev, "sock %p", sk);
441
442 read_lock(&hci_dev_list_lock);
443
444 count = 0;
445 list_for_each_entry(d, &hci_dev_list, list) {
446 if (!hci_dev_test_flag(d, HCI_UNCONFIGURED))
447 count++;
448 }
449
450 rp_len = sizeof(*rp) + (2 * count);
451 rp = kmalloc(rp_len, GFP_ATOMIC);
452 if (!rp) {
453 read_unlock(&hci_dev_list_lock);
454 return -ENOMEM;
455 }
456
457 count = 0;
458 list_for_each_entry(d, &hci_dev_list, list) {
459 if (hci_dev_test_flag(d, HCI_SETUP) ||
460 hci_dev_test_flag(d, HCI_CONFIG) ||
461 hci_dev_test_flag(d, HCI_USER_CHANNEL))
462 continue;
463
464 /* Devices marked as raw-only are neither configured
465 * nor unconfigured controllers.
466 */
467 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
468 continue;
469
470 if (!hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
471 rp->index[count++] = cpu_to_le16(d->id);
472 bt_dev_dbg(hdev, "Added hci%u", d->id);
473 }
474 }
475
476 rp->num_controllers = cpu_to_le16(count);
477 rp_len = sizeof(*rp) + (2 * count);
478
479 read_unlock(&hci_dev_list_lock);
480
481 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST,
482 0, rp, rp_len);
483
484 kfree(rp);
485
486 return err;
487 }
488
489 static int read_unconf_index_list(struct sock *sk, struct hci_dev *hdev,
490 void *data, u16 data_len)
491 {
492 struct mgmt_rp_read_unconf_index_list *rp;
493 struct hci_dev *d;
494 size_t rp_len;
495 u16 count;
496 int err;
497
498 bt_dev_dbg(hdev, "sock %p", sk);
499
500 read_lock(&hci_dev_list_lock);
501
502 count = 0;
503 list_for_each_entry(d, &hci_dev_list, list) {
504 if (hci_dev_test_flag(d, HCI_UNCONFIGURED))
505 count++;
506 }
507
508 rp_len = sizeof(*rp) + (2 * count);
509 rp = kmalloc(rp_len, GFP_ATOMIC);
510 if (!rp) {
511 read_unlock(&hci_dev_list_lock);
512 return -ENOMEM;
513 }
514
515 count = 0;
516 list_for_each_entry(d, &hci_dev_list, list) {
517 if (hci_dev_test_flag(d, HCI_SETUP) ||
518 hci_dev_test_flag(d, HCI_CONFIG) ||
519 hci_dev_test_flag(d, HCI_USER_CHANNEL))
520 continue;
521
522 /* Devices marked as raw-only are neither configured
523 * nor unconfigured controllers.
524 */
525 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
526 continue;
527
528 if (hci_dev_test_flag(d, HCI_UNCONFIGURED)) {
529 rp->index[count++] = cpu_to_le16(d->id);
530 bt_dev_dbg(hdev, "Added hci%u", d->id);
531 }
532 }
533
534 rp->num_controllers = cpu_to_le16(count);
535 rp_len = sizeof(*rp) + (2 * count);
536
537 read_unlock(&hci_dev_list_lock);
538
539 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
540 MGMT_OP_READ_UNCONF_INDEX_LIST, 0, rp, rp_len);
541
542 kfree(rp);
543
544 return err;
545 }
546
547 static int read_ext_index_list(struct sock *sk, struct hci_dev *hdev,
548 void *data, u16 data_len)
549 {
550 struct mgmt_rp_read_ext_index_list *rp;
551 struct hci_dev *d;
552 u16 count;
553 int err;
554
555 bt_dev_dbg(hdev, "sock %p", sk);
556
557 read_lock(&hci_dev_list_lock);
558
559 count = 0;
560 list_for_each_entry(d, &hci_dev_list, list)
561 count++;
562
563 rp = kmalloc(struct_size(rp, entry, count), GFP_ATOMIC);
564 if (!rp) {
565 read_unlock(&hci_dev_list_lock);
566 return -ENOMEM;
567 }
568
569 count = 0;
570 list_for_each_entry(d, &hci_dev_list, list) {
571 if (hci_dev_test_flag(d, HCI_SETUP) ||
572 hci_dev_test_flag(d, HCI_CONFIG) ||
573 hci_dev_test_flag(d, HCI_USER_CHANNEL))
574 continue;
575
576 /* Devices marked as raw-only are neither configured
577 * nor unconfigured controllers.
578 */
579 if (test_bit(HCI_QUIRK_RAW_DEVICE, &d->quirks))
580 continue;
581
582 if (hci_dev_test_flag(d, HCI_UNCONFIGURED))
583 rp->entry[count].type = 0x01;
584 else
585 rp->entry[count].type = 0x00;
586
587 rp->entry[count].bus = d->bus;
588 rp->entry[count++].index = cpu_to_le16(d->id);
589 bt_dev_dbg(hdev, "Added hci%u", d->id);
590 }
591
592 rp->num_controllers = cpu_to_le16(count);
593
594 read_unlock(&hci_dev_list_lock);
595
596 /* If this command is called at least once, then all the
597 * default index and unconfigured index events are disabled
598 * and from now on only extended index events are used.
599 */
600 hci_sock_set_flag(sk, HCI_MGMT_EXT_INDEX_EVENTS);
601 hci_sock_clear_flag(sk, HCI_MGMT_INDEX_EVENTS);
602 hci_sock_clear_flag(sk, HCI_MGMT_UNCONF_INDEX_EVENTS);
603
604 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
605 MGMT_OP_READ_EXT_INDEX_LIST, 0, rp,
606 struct_size(rp, entry, count));
607
608 kfree(rp);
609
610 return err;
611 }
612
613 static bool is_configured(struct hci_dev *hdev)
614 {
615 if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
616 !hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
617 return false;
618
619 if ((test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) ||
620 test_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks)) &&
621 !bacmp(&hdev->public_addr, BDADDR_ANY))
622 return false;
623
624 return true;
625 }
626
627 static __le32 get_missing_options(struct hci_dev *hdev)
628 {
629 u32 options = 0;
630
631 if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) &&
632 !hci_dev_test_flag(hdev, HCI_EXT_CONFIGURED))
633 options |= MGMT_OPTION_EXTERNAL_CONFIG;
634
635 if ((test_bit(HCI_QUIRK_INVALID_BDADDR, &hdev->quirks) ||
636 test_bit(HCI_QUIRK_USE_BDADDR_PROPERTY, &hdev->quirks)) &&
637 !bacmp(&hdev->public_addr, BDADDR_ANY))
638 options |= MGMT_OPTION_PUBLIC_ADDRESS;
639
640 return cpu_to_le32(options);
641 }
642
643 static int new_options(struct hci_dev *hdev, struct sock *skip)
644 {
645 __le32 options = get_missing_options(hdev);
646
647 return mgmt_limited_event(MGMT_EV_NEW_CONFIG_OPTIONS, hdev, &options,
648 sizeof(options), HCI_MGMT_OPTION_EVENTS, skip);
649 }
650
651 static int send_options_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
652 {
653 __le32 options = get_missing_options(hdev);
654
655 return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &options,
656 sizeof(options));
657 }
658
659 static int read_config_info(struct sock *sk, struct hci_dev *hdev,
660 void *data, u16 data_len)
661 {
662 struct mgmt_rp_read_config_info rp;
663 u32 options = 0;
664
665 bt_dev_dbg(hdev, "sock %p", sk);
666
667 hci_dev_lock(hdev);
668
669 memset(&rp, 0, sizeof(rp));
670 rp.manufacturer = cpu_to_le16(hdev->manufacturer);
671
672 if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
673 options |= MGMT_OPTION_EXTERNAL_CONFIG;
674
675 if (hdev->set_bdaddr)
676 options |= MGMT_OPTION_PUBLIC_ADDRESS;
677
678 rp.supported_options = cpu_to_le32(options);
679 rp.missing_options = get_missing_options(hdev);
680
681 hci_dev_unlock(hdev);
682
683 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_CONFIG_INFO, 0,
684 &rp, sizeof(rp));
685 }
686
687 static u32 get_supported_phys(struct hci_dev *hdev)
688 {
689 u32 supported_phys = 0;
690
691 if (lmp_bredr_capable(hdev)) {
692 supported_phys |= MGMT_PHY_BR_1M_1SLOT;
693
694 if (hdev->features[0][0] & LMP_3SLOT)
695 supported_phys |= MGMT_PHY_BR_1M_3SLOT;
696
697 if (hdev->features[0][0] & LMP_5SLOT)
698 supported_phys |= MGMT_PHY_BR_1M_5SLOT;
699
700 if (lmp_edr_2m_capable(hdev)) {
701 supported_phys |= MGMT_PHY_EDR_2M_1SLOT;
702
703 if (lmp_edr_3slot_capable(hdev))
704 supported_phys |= MGMT_PHY_EDR_2M_3SLOT;
705
706 if (lmp_edr_5slot_capable(hdev))
707 supported_phys |= MGMT_PHY_EDR_2M_5SLOT;
708
709 if (lmp_edr_3m_capable(hdev)) {
710 supported_phys |= MGMT_PHY_EDR_3M_1SLOT;
711
712 if (lmp_edr_3slot_capable(hdev))
713 supported_phys |= MGMT_PHY_EDR_3M_3SLOT;
714
715 if (lmp_edr_5slot_capable(hdev))
716 supported_phys |= MGMT_PHY_EDR_3M_5SLOT;
717 }
718 }
719 }
720
721 if (lmp_le_capable(hdev)) {
722 supported_phys |= MGMT_PHY_LE_1M_TX;
723 supported_phys |= MGMT_PHY_LE_1M_RX;
724
725 if (hdev->le_features[1] & HCI_LE_PHY_2M) {
726 supported_phys |= MGMT_PHY_LE_2M_TX;
727 supported_phys |= MGMT_PHY_LE_2M_RX;
728 }
729
730 if (hdev->le_features[1] & HCI_LE_PHY_CODED) {
731 supported_phys |= MGMT_PHY_LE_CODED_TX;
732 supported_phys |= MGMT_PHY_LE_CODED_RX;
733 }
734 }
735
736 return supported_phys;
737 }
738
739 static u32 get_selected_phys(struct hci_dev *hdev)
740 {
741 u32 selected_phys = 0;
742
743 if (lmp_bredr_capable(hdev)) {
744 selected_phys |= MGMT_PHY_BR_1M_1SLOT;
745
746 if (hdev->pkt_type & (HCI_DM3 | HCI_DH3))
747 selected_phys |= MGMT_PHY_BR_1M_3SLOT;
748
749 if (hdev->pkt_type & (HCI_DM5 | HCI_DH5))
750 selected_phys |= MGMT_PHY_BR_1M_5SLOT;
751
752 if (lmp_edr_2m_capable(hdev)) {
753 if (!(hdev->pkt_type & HCI_2DH1))
754 selected_phys |= MGMT_PHY_EDR_2M_1SLOT;
755
756 if (lmp_edr_3slot_capable(hdev) &&
757 !(hdev->pkt_type & HCI_2DH3))
758 selected_phys |= MGMT_PHY_EDR_2M_3SLOT;
759
760 if (lmp_edr_5slot_capable(hdev) &&
761 !(hdev->pkt_type & HCI_2DH5))
762 selected_phys |= MGMT_PHY_EDR_2M_5SLOT;
763
764 if (lmp_edr_3m_capable(hdev)) {
765 if (!(hdev->pkt_type & HCI_3DH1))
766 selected_phys |= MGMT_PHY_EDR_3M_1SLOT;
767
768 if (lmp_edr_3slot_capable(hdev) &&
769 !(hdev->pkt_type & HCI_3DH3))
770 selected_phys |= MGMT_PHY_EDR_3M_3SLOT;
771
772 if (lmp_edr_5slot_capable(hdev) &&
773 !(hdev->pkt_type & HCI_3DH5))
774 selected_phys |= MGMT_PHY_EDR_3M_5SLOT;
775 }
776 }
777 }
778
779 if (lmp_le_capable(hdev)) {
780 if (hdev->le_tx_def_phys & HCI_LE_SET_PHY_1M)
781 selected_phys |= MGMT_PHY_LE_1M_TX;
782
783 if (hdev->le_rx_def_phys & HCI_LE_SET_PHY_1M)
784 selected_phys |= MGMT_PHY_LE_1M_RX;
785
786 if (hdev->le_tx_def_phys & HCI_LE_SET_PHY_2M)
787 selected_phys |= MGMT_PHY_LE_2M_TX;
788
789 if (hdev->le_rx_def_phys & HCI_LE_SET_PHY_2M)
790 selected_phys |= MGMT_PHY_LE_2M_RX;
791
792 if (hdev->le_tx_def_phys & HCI_LE_SET_PHY_CODED)
793 selected_phys |= MGMT_PHY_LE_CODED_TX;
794
795 if (hdev->le_rx_def_phys & HCI_LE_SET_PHY_CODED)
796 selected_phys |= MGMT_PHY_LE_CODED_RX;
797 }
798
799 return selected_phys;
800 }
801
802 static u32 get_configurable_phys(struct hci_dev *hdev)
803 {
804 return (get_supported_phys(hdev) & ~MGMT_PHY_BR_1M_1SLOT &
805 ~MGMT_PHY_LE_1M_TX & ~MGMT_PHY_LE_1M_RX);
806 }
807
808 static u32 get_supported_settings(struct hci_dev *hdev)
809 {
810 u32 settings = 0;
811
812 settings |= MGMT_SETTING_POWERED;
813 settings |= MGMT_SETTING_BONDABLE;
814 settings |= MGMT_SETTING_DEBUG_KEYS;
815 settings |= MGMT_SETTING_CONNECTABLE;
816 settings |= MGMT_SETTING_DISCOVERABLE;
817
818 if (lmp_bredr_capable(hdev)) {
819 if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
820 settings |= MGMT_SETTING_FAST_CONNECTABLE;
821 settings |= MGMT_SETTING_BREDR;
822 settings |= MGMT_SETTING_LINK_SECURITY;
823
824 if (lmp_ssp_capable(hdev)) {
825 settings |= MGMT_SETTING_SSP;
826 }
827
828 if (lmp_sc_capable(hdev))
829 settings |= MGMT_SETTING_SECURE_CONN;
830
831 if (test_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED,
832 &hdev->quirks))
833 settings |= MGMT_SETTING_WIDEBAND_SPEECH;
834 }
835
836 if (lmp_le_capable(hdev)) {
837 settings |= MGMT_SETTING_LE;
838 settings |= MGMT_SETTING_SECURE_CONN;
839 settings |= MGMT_SETTING_PRIVACY;
840 settings |= MGMT_SETTING_STATIC_ADDRESS;
841 settings |= MGMT_SETTING_ADVERTISING;
842 }
843
844 if (test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks) ||
845 hdev->set_bdaddr)
846 settings |= MGMT_SETTING_CONFIGURATION;
847
848 if (cis_central_capable(hdev))
849 settings |= MGMT_SETTING_CIS_CENTRAL;
850
851 if (cis_peripheral_capable(hdev))
852 settings |= MGMT_SETTING_CIS_PERIPHERAL;
853
854 settings |= MGMT_SETTING_PHY_CONFIGURATION;
855
856 return settings;
857 }
858
859 static u32 get_current_settings(struct hci_dev *hdev)
860 {
861 u32 settings = 0;
862
863 if (hdev_is_powered(hdev))
864 settings |= MGMT_SETTING_POWERED;
865
866 if (hci_dev_test_flag(hdev, HCI_CONNECTABLE))
867 settings |= MGMT_SETTING_CONNECTABLE;
868
869 if (hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE))
870 settings |= MGMT_SETTING_FAST_CONNECTABLE;
871
872 if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
873 settings |= MGMT_SETTING_DISCOVERABLE;
874
875 if (hci_dev_test_flag(hdev, HCI_BONDABLE))
876 settings |= MGMT_SETTING_BONDABLE;
877
878 if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
879 settings |= MGMT_SETTING_BREDR;
880
881 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED))
882 settings |= MGMT_SETTING_LE;
883
884 if (hci_dev_test_flag(hdev, HCI_LINK_SECURITY))
885 settings |= MGMT_SETTING_LINK_SECURITY;
886
887 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
888 settings |= MGMT_SETTING_SSP;
889
890 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
891 settings |= MGMT_SETTING_ADVERTISING;
892
893 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED))
894 settings |= MGMT_SETTING_SECURE_CONN;
895
896 if (hci_dev_test_flag(hdev, HCI_KEEP_DEBUG_KEYS))
897 settings |= MGMT_SETTING_DEBUG_KEYS;
898
899 if (hci_dev_test_flag(hdev, HCI_PRIVACY))
900 settings |= MGMT_SETTING_PRIVACY;
901
902 /* The current setting for static address has two purposes. The
903 * first is to indicate if the static address will be used and
904 * the second is to indicate if it is actually set.
905 *
906 * This means if the static address is not configured, this flag
907 * will never be set. If the address is configured, then if the
908 * address is actually used decides if the flag is set or not.
909 *
910 * For single mode LE only controllers and dual-mode controllers
911 * with BR/EDR disabled, the existence of the static address will
912 * be evaluated.
913 */
914 if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
915 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
916 !bacmp(&hdev->bdaddr, BDADDR_ANY)) {
917 if (bacmp(&hdev->static_addr, BDADDR_ANY))
918 settings |= MGMT_SETTING_STATIC_ADDRESS;
919 }
920
921 if (hci_dev_test_flag(hdev, HCI_WIDEBAND_SPEECH_ENABLED))
922 settings |= MGMT_SETTING_WIDEBAND_SPEECH;
923
924 if (cis_central_capable(hdev))
925 settings |= MGMT_SETTING_CIS_CENTRAL;
926
927 if (cis_peripheral_capable(hdev))
928 settings |= MGMT_SETTING_CIS_PERIPHERAL;
929
930 if (bis_capable(hdev))
931 settings |= MGMT_SETTING_ISO_BROADCASTER;
932
933 if (sync_recv_capable(hdev))
934 settings |= MGMT_SETTING_ISO_SYNC_RECEIVER;
935
936 return settings;
937 }
938
939 static struct mgmt_pending_cmd *pending_find(u16 opcode, struct hci_dev *hdev)
940 {
941 return mgmt_pending_find(HCI_CHANNEL_CONTROL, opcode, hdev);
942 }
943
944 u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev)
945 {
946 struct mgmt_pending_cmd *cmd;
947
948 /* If there's a pending mgmt command the flags will not yet have
949 * their final values, so check for this first.
950 */
951 cmd = pending_find(MGMT_OP_SET_DISCOVERABLE, hdev);
952 if (cmd) {
953 struct mgmt_mode *cp = cmd->param;
954 if (cp->val == 0x01)
955 return LE_AD_GENERAL;
956 else if (cp->val == 0x02)
957 return LE_AD_LIMITED;
958 } else {
959 if (hci_dev_test_flag(hdev, HCI_LIMITED_DISCOVERABLE))
960 return LE_AD_LIMITED;
961 else if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE))
962 return LE_AD_GENERAL;
963 }
964
965 return 0;
966 }
967
968 bool mgmt_get_connectable(struct hci_dev *hdev)
969 {
970 struct mgmt_pending_cmd *cmd;
971
972 /* If there's a pending mgmt command the flag will not yet have
973 * it's final value, so check for this first.
974 */
975 cmd = pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
976 if (cmd) {
977 struct mgmt_mode *cp = cmd->param;
978
979 return cp->val;
980 }
981
982 return hci_dev_test_flag(hdev, HCI_CONNECTABLE);
983 }
984
985 static int service_cache_sync(struct hci_dev *hdev, void *data)
986 {
987 hci_update_eir_sync(hdev);
988 hci_update_class_sync(hdev);
989
990 return 0;
991 }
992
993 static void service_cache_off(struct work_struct *work)
994 {
995 struct hci_dev *hdev = container_of(work, struct hci_dev,
996 service_cache.work);
997
998 if (!hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE))
999 return;
1000
1001 hci_cmd_sync_queue(hdev, service_cache_sync, NULL, NULL);
1002 }
1003
1004 static int rpa_expired_sync(struct hci_dev *hdev, void *data)
1005 {
1006 /* The generation of a new RPA and programming it into the
1007 * controller happens in the hci_req_enable_advertising()
1008 * function.
1009 */
1010 if (ext_adv_capable(hdev))
1011 return hci_start_ext_adv_sync(hdev, hdev->cur_adv_instance);
1012 else
1013 return hci_enable_advertising_sync(hdev);
1014 }
1015
1016 static void rpa_expired(struct work_struct *work)
1017 {
1018 struct hci_dev *hdev = container_of(work, struct hci_dev,
1019 rpa_expired.work);
1020
1021 bt_dev_dbg(hdev, "");
1022
1023 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
1024
1025 if (!hci_dev_test_flag(hdev, HCI_ADVERTISING))
1026 return;
1027
1028 hci_cmd_sync_queue(hdev, rpa_expired_sync, NULL, NULL);
1029 }
1030
1031 static int set_discoverable_sync(struct hci_dev *hdev, void *data);
1032
1033 static void discov_off(struct work_struct *work)
1034 {
1035 struct hci_dev *hdev = container_of(work, struct hci_dev,
1036 discov_off.work);
1037
1038 bt_dev_dbg(hdev, "");
1039
1040 hci_dev_lock(hdev);
1041
1042 /* When discoverable timeout triggers, then just make sure
1043 * the limited discoverable flag is cleared. Even in the case
1044 * of a timeout triggered from general discoverable, it is
1045 * safe to unconditionally clear the flag.
1046 */
1047 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1048 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
1049 hdev->discov_timeout = 0;
1050
1051 hci_cmd_sync_queue(hdev, set_discoverable_sync, NULL, NULL);
1052
1053 mgmt_new_settings(hdev);
1054
1055 hci_dev_unlock(hdev);
1056 }
1057
1058 static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev);
1059
1060 static void mesh_send_complete(struct hci_dev *hdev,
1061 struct mgmt_mesh_tx *mesh_tx, bool silent)
1062 {
1063 u8 handle = mesh_tx->handle;
1064
1065 if (!silent)
1066 mgmt_event(MGMT_EV_MESH_PACKET_CMPLT, hdev, &handle,
1067 sizeof(handle), NULL);
1068
1069 mgmt_mesh_remove(mesh_tx);
1070 }
1071
1072 static int mesh_send_done_sync(struct hci_dev *hdev, void *data)
1073 {
1074 struct mgmt_mesh_tx *mesh_tx;
1075
1076 hci_dev_clear_flag(hdev, HCI_MESH_SENDING);
1077 hci_disable_advertising_sync(hdev);
1078 mesh_tx = mgmt_mesh_next(hdev, NULL);
1079
1080 if (mesh_tx)
1081 mesh_send_complete(hdev, mesh_tx, false);
1082
1083 return 0;
1084 }
1085
1086 static int mesh_send_sync(struct hci_dev *hdev, void *data);
1087 static void mesh_send_start_complete(struct hci_dev *hdev, void *data, int err);
1088 static void mesh_next(struct hci_dev *hdev, void *data, int err)
1089 {
1090 struct mgmt_mesh_tx *mesh_tx = mgmt_mesh_next(hdev, NULL);
1091
1092 if (!mesh_tx)
1093 return;
1094
1095 err = hci_cmd_sync_queue(hdev, mesh_send_sync, mesh_tx,
1096 mesh_send_start_complete);
1097
1098 if (err < 0)
1099 mesh_send_complete(hdev, mesh_tx, false);
1100 else
1101 hci_dev_set_flag(hdev, HCI_MESH_SENDING);
1102 }
1103
1104 static void mesh_send_done(struct work_struct *work)
1105 {
1106 struct hci_dev *hdev = container_of(work, struct hci_dev,
1107 mesh_send_done.work);
1108
1109 if (!hci_dev_test_flag(hdev, HCI_MESH_SENDING))
1110 return;
1111
1112 hci_cmd_sync_queue(hdev, mesh_send_done_sync, NULL, mesh_next);
1113 }
1114
1115 static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
1116 {
1117 if (hci_dev_test_flag(hdev, HCI_MGMT))
1118 return;
1119
1120 BT_INFO("MGMT ver %d.%d", MGMT_VERSION, MGMT_REVISION);
1121
1122 INIT_DELAYED_WORK(&hdev->discov_off, discov_off);
1123 INIT_DELAYED_WORK(&hdev->service_cache, service_cache_off);
1124 INIT_DELAYED_WORK(&hdev->rpa_expired, rpa_expired);
1125 INIT_DELAYED_WORK(&hdev->mesh_send_done, mesh_send_done);
1126
1127 /* Non-mgmt controlled devices get this bit set
1128 * implicitly so that pairing works for them, however
1129 * for mgmt we require user-space to explicitly enable
1130 * it
1131 */
1132 hci_dev_clear_flag(hdev, HCI_BONDABLE);
1133
1134 hci_dev_set_flag(hdev, HCI_MGMT);
1135 }
1136
1137 static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
1138 void *data, u16 data_len)
1139 {
1140 struct mgmt_rp_read_info rp;
1141
1142 bt_dev_dbg(hdev, "sock %p", sk);
1143
1144 hci_dev_lock(hdev);
1145
1146 memset(&rp, 0, sizeof(rp));
1147
1148 bacpy(&rp.bdaddr, &hdev->bdaddr);
1149
1150 rp.version = hdev->hci_ver;
1151 rp.manufacturer = cpu_to_le16(hdev->manufacturer);
1152
1153 rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
1154 rp.current_settings = cpu_to_le32(get_current_settings(hdev));
1155
1156 memcpy(rp.dev_class, hdev->dev_class, 3);
1157
1158 memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
1159 memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));
1160
1161 hci_dev_unlock(hdev);
1162
1163 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,
1164 sizeof(rp));
1165 }
1166
1167 static u16 append_eir_data_to_buf(struct hci_dev *hdev, u8 *eir)
1168 {
1169 u16 eir_len = 0;
1170 size_t name_len;
1171
1172 if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1173 eir_len = eir_append_data(eir, eir_len, EIR_CLASS_OF_DEV,
1174 hdev->dev_class, 3);
1175
1176 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED))
1177 eir_len = eir_append_le16(eir, eir_len, EIR_APPEARANCE,
1178 hdev->appearance);
1179
1180 name_len = strnlen(hdev->dev_name, sizeof(hdev->dev_name));
1181 eir_len = eir_append_data(eir, eir_len, EIR_NAME_COMPLETE,
1182 hdev->dev_name, name_len);
1183
1184 name_len = strnlen(hdev->short_name, sizeof(hdev->short_name));
1185 eir_len = eir_append_data(eir, eir_len, EIR_NAME_SHORT,
1186 hdev->short_name, name_len);
1187
1188 return eir_len;
1189 }
1190
1191 static int read_ext_controller_info(struct sock *sk, struct hci_dev *hdev,
1192 void *data, u16 data_len)
1193 {
1194 char buf[512];
1195 struct mgmt_rp_read_ext_info *rp = (void *)buf;
1196 u16 eir_len;
1197
1198 bt_dev_dbg(hdev, "sock %p", sk);
1199
1200 memset(&buf, 0, sizeof(buf));
1201
1202 hci_dev_lock(hdev);
1203
1204 bacpy(&rp->bdaddr, &hdev->bdaddr);
1205
1206 rp->version = hdev->hci_ver;
1207 rp->manufacturer = cpu_to_le16(hdev->manufacturer);
1208
1209 rp->supported_settings = cpu_to_le32(get_supported_settings(hdev));
1210 rp->current_settings = cpu_to_le32(get_current_settings(hdev));
1211
1212
1213 eir_len = append_eir_data_to_buf(hdev, rp->eir);
1214 rp->eir_len = cpu_to_le16(eir_len);
1215
1216 hci_dev_unlock(hdev);
1217
1218 /* If this command is called at least once, then the events
1219 * for class of device and local name changes are disabled
1220 * and only the new extended controller information event
1221 * is used.
1222 */
1223 hci_sock_set_flag(sk, HCI_MGMT_EXT_INFO_EVENTS);
1224 hci_sock_clear_flag(sk, HCI_MGMT_DEV_CLASS_EVENTS);
1225 hci_sock_clear_flag(sk, HCI_MGMT_LOCAL_NAME_EVENTS);
1226
1227 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_EXT_INFO, 0, rp,
1228 sizeof(*rp) + eir_len);
1229 }
1230
1231 static int ext_info_changed(struct hci_dev *hdev, struct sock *skip)
1232 {
1233 char buf[512];
1234 struct mgmt_ev_ext_info_changed *ev = (void *)buf;
1235 u16 eir_len;
1236
1237 memset(buf, 0, sizeof(buf));
1238
1239 eir_len = append_eir_data_to_buf(hdev, ev->eir);
1240 ev->eir_len = cpu_to_le16(eir_len);
1241
1242 return mgmt_limited_event(MGMT_EV_EXT_INFO_CHANGED, hdev, ev,
1243 sizeof(*ev) + eir_len,
1244 HCI_MGMT_EXT_INFO_EVENTS, skip);
1245 }
1246
1247 static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
1248 {
1249 __le32 settings = cpu_to_le32(get_current_settings(hdev));
1250
1251 return mgmt_cmd_complete(sk, hdev->id, opcode, 0, &settings,
1252 sizeof(settings));
1253 }
1254
1255 void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, u8 instance)
1256 {
1257 struct mgmt_ev_advertising_added ev;
1258
1259 ev.instance = instance;
1260
1261 mgmt_event(MGMT_EV_ADVERTISING_ADDED, hdev, &ev, sizeof(ev), sk);
1262 }
1263
1264 void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
1265 u8 instance)
1266 {
1267 struct mgmt_ev_advertising_removed ev;
1268
1269 ev.instance = instance;
1270
1271 mgmt_event(MGMT_EV_ADVERTISING_REMOVED, hdev, &ev, sizeof(ev), sk);
1272 }
1273
1274 static void cancel_adv_timeout(struct hci_dev *hdev)
1275 {
1276 if (hdev->adv_instance_timeout) {
1277 hdev->adv_instance_timeout = 0;
1278 cancel_delayed_work(&hdev->adv_instance_expire);
1279 }
1280 }
1281
1282 /* This function requires the caller holds hdev->lock */
1283 static void restart_le_actions(struct hci_dev *hdev)
1284 {
1285 struct hci_conn_params *p;
1286
1287 list_for_each_entry(p, &hdev->le_conn_params, list) {
1288 /* Needed for AUTO_OFF case where might not "really"
1289 * have been powered off.
1290 */
1291 hci_pend_le_list_del_init(p);
1292
1293 switch (p->auto_connect) {
1294 case HCI_AUTO_CONN_DIRECT:
1295 case HCI_AUTO_CONN_ALWAYS:
1296 hci_pend_le_list_add(p, &hdev->pend_le_conns);
1297 break;
1298 case HCI_AUTO_CONN_REPORT:
1299 hci_pend_le_list_add(p, &hdev->pend_le_reports);
1300 break;
1301 default:
1302 break;
1303 }
1304 }
1305 }
1306
1307 static int new_settings(struct hci_dev *hdev, struct sock *skip)
1308 {
1309 __le32 ev = cpu_to_le32(get_current_settings(hdev));
1310
1311 return mgmt_limited_event(MGMT_EV_NEW_SETTINGS, hdev, &ev,
1312 sizeof(ev), HCI_MGMT_SETTING_EVENTS, skip);
1313 }
1314
1315 static void mgmt_set_powered_complete(struct hci_dev *hdev, void *data, int err)
1316 {
1317 struct mgmt_pending_cmd *cmd = data;
1318 struct mgmt_mode *cp;
1319
1320 /* Make sure cmd still outstanding. */
1321 if (err == -ECANCELED ||
1322 cmd != pending_find(MGMT_OP_SET_POWERED, hdev))
1323 return;
1324
1325 cp = cmd->param;
1326
1327 bt_dev_dbg(hdev, "err %d", err);
1328
1329 if (!err) {
1330 if (cp->val) {
1331 hci_dev_lock(hdev);
1332 restart_le_actions(hdev);
1333 hci_update_passive_scan(hdev);
1334 hci_dev_unlock(hdev);
1335 }
1336
1337 send_settings_rsp(cmd->sk, cmd->opcode, hdev);
1338
1339 /* Only call new_setting for power on as power off is deferred
1340 * to hdev->power_off work which does call hci_dev_do_close.
1341 */
1342 if (cp->val)
1343 new_settings(hdev, cmd->sk);
1344 } else {
1345 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED,
1346 mgmt_status(err));
1347 }
1348
1349 mgmt_pending_remove(cmd);
1350 }
1351
1352 static int set_powered_sync(struct hci_dev *hdev, void *data)
1353 {
1354 struct mgmt_pending_cmd *cmd = data;
1355 struct mgmt_mode *cp;
1356
1357 /* Make sure cmd still outstanding. */
1358 if (cmd != pending_find(MGMT_OP_SET_POWERED, hdev))
1359 return -ECANCELED;
1360
1361 cp = cmd->param;
1362
1363 BT_DBG("%s", hdev->name);
1364
1365 return hci_set_powered_sync(hdev, cp->val);
1366 }
1367
1368 static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
1369 u16 len)
1370 {
1371 struct mgmt_mode *cp = data;
1372 struct mgmt_pending_cmd *cmd;
1373 int err;
1374
1375 bt_dev_dbg(hdev, "sock %p", sk);
1376
1377 if (cp->val != 0x00 && cp->val != 0x01)
1378 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1379 MGMT_STATUS_INVALID_PARAMS);
1380
1381 hci_dev_lock(hdev);
1382
1383 if (!cp->val) {
1384 if (hci_dev_test_flag(hdev, HCI_POWERING_DOWN)) {
1385 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1386 MGMT_STATUS_BUSY);
1387 goto failed;
1388 }
1389 }
1390
1391 if (pending_find(MGMT_OP_SET_POWERED, hdev)) {
1392 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
1393 MGMT_STATUS_BUSY);
1394 goto failed;
1395 }
1396
1397 if (!!cp->val == hdev_is_powered(hdev)) {
1398 err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
1399 goto failed;
1400 }
1401
1402 cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
1403 if (!cmd) {
1404 err = -ENOMEM;
1405 goto failed;
1406 }
1407
1408 /* Cancel potentially blocking sync operation before power off */
1409 if (cp->val == 0x00) {
1410 hci_cmd_sync_cancel_sync(hdev, -EHOSTDOWN);
1411 err = hci_cmd_sync_queue(hdev, set_powered_sync, cmd,
1412 mgmt_set_powered_complete);
1413 } else {
1414 /* Use hci_cmd_sync_submit since hdev might not be running */
1415 err = hci_cmd_sync_submit(hdev, set_powered_sync, cmd,
1416 mgmt_set_powered_complete);
1417 }
1418
1419 if (err < 0)
1420 mgmt_pending_remove(cmd);
1421
1422 failed:
1423 hci_dev_unlock(hdev);
1424 return err;
1425 }
1426
1427 int mgmt_new_settings(struct hci_dev *hdev)
1428 {
1429 return new_settings(hdev, NULL);
1430 }
1431
1432 struct cmd_lookup {
1433 struct sock *sk;
1434 struct hci_dev *hdev;
1435 u8 mgmt_status;
1436 };
1437
1438 static void settings_rsp(struct mgmt_pending_cmd *cmd, void *data)
1439 {
1440 struct cmd_lookup *match = data;
1441
1442 send_settings_rsp(cmd->sk, cmd->opcode, match->hdev);
1443
1444 list_del(&cmd->list);
1445
1446 if (match->sk == NULL) {
1447 match->sk = cmd->sk;
1448 sock_hold(match->sk);
1449 }
1450
1451 mgmt_pending_free(cmd);
1452 }
1453
1454 static void cmd_status_rsp(struct mgmt_pending_cmd *cmd, void *data)
1455 {
1456 u8 *status = data;
1457
1458 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, *status);
1459 mgmt_pending_remove(cmd);
1460 }
1461
1462 static void cmd_complete_rsp(struct mgmt_pending_cmd *cmd, void *data)
1463 {
1464 struct cmd_lookup *match = data;
1465
1466 /* dequeue cmd_sync entries using cmd as data as that is about to be
1467 * removed/freed.
1468 */
1469 hci_cmd_sync_dequeue(match->hdev, NULL, cmd, NULL);
1470
1471 if (cmd->cmd_complete) {
1472 cmd->cmd_complete(cmd, match->mgmt_status);
1473 mgmt_pending_remove(cmd);
1474
1475 return;
1476 }
1477
1478 cmd_status_rsp(cmd, data);
1479 }
1480
1481 static int generic_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
1482 {
1483 return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
1484 cmd->param, cmd->param_len);
1485 }
1486
1487 static int addr_cmd_complete(struct mgmt_pending_cmd *cmd, u8 status)
1488 {
1489 return mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status,
1490 cmd->param, sizeof(struct mgmt_addr_info));
1491 }
1492
1493 static u8 mgmt_bredr_support(struct hci_dev *hdev)
1494 {
1495 if (!lmp_bredr_capable(hdev))
1496 return MGMT_STATUS_NOT_SUPPORTED;
1497 else if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1498 return MGMT_STATUS_REJECTED;
1499 else
1500 return MGMT_STATUS_SUCCESS;
1501 }
1502
1503 static u8 mgmt_le_support(struct hci_dev *hdev)
1504 {
1505 if (!lmp_le_capable(hdev))
1506 return MGMT_STATUS_NOT_SUPPORTED;
1507 else if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
1508 return MGMT_STATUS_REJECTED;
1509 else
1510 return MGMT_STATUS_SUCCESS;
1511 }
1512
1513 static void mgmt_set_discoverable_complete(struct hci_dev *hdev, void *data,
1514 int err)
1515 {
1516 struct mgmt_pending_cmd *cmd = data;
1517
1518 bt_dev_dbg(hdev, "err %d", err);
1519
1520 /* Make sure cmd still outstanding. */
1521 if (err == -ECANCELED ||
1522 cmd != pending_find(MGMT_OP_SET_DISCOVERABLE, hdev))
1523 return;
1524
1525 hci_dev_lock(hdev);
1526
1527 if (err) {
1528 u8 mgmt_err = mgmt_status(err);
1529 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
1530 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1531 goto done;
1532 }
1533
1534 if (hci_dev_test_flag(hdev, HCI_DISCOVERABLE) &&
1535 hdev->discov_timeout > 0) {
1536 int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
1537 queue_delayed_work(hdev->req_workqueue, &hdev->discov_off, to);
1538 }
1539
1540 send_settings_rsp(cmd->sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1541 new_settings(hdev, cmd->sk);
1542
1543 done:
1544 mgmt_pending_remove(cmd);
1545 hci_dev_unlock(hdev);
1546 }
1547
1548 static int set_discoverable_sync(struct hci_dev *hdev, void *data)
1549 {
1550 BT_DBG("%s", hdev->name);
1551
1552 return hci_update_discoverable_sync(hdev);
1553 }
1554
1555 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
1556 u16 len)
1557 {
1558 struct mgmt_cp_set_discoverable *cp = data;
1559 struct mgmt_pending_cmd *cmd;
1560 u16 timeout;
1561 int err;
1562
1563 bt_dev_dbg(hdev, "sock %p", sk);
1564
1565 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
1566 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1567 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1568 MGMT_STATUS_REJECTED);
1569
1570 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
1571 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1572 MGMT_STATUS_INVALID_PARAMS);
1573
1574 timeout = __le16_to_cpu(cp->timeout);
1575
1576 /* Disabling discoverable requires that no timeout is set,
1577 * and enabling limited discoverable requires a timeout.
1578 */
1579 if ((cp->val == 0x00 && timeout > 0) ||
1580 (cp->val == 0x02 && timeout == 0))
1581 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1582 MGMT_STATUS_INVALID_PARAMS);
1583
1584 hci_dev_lock(hdev);
1585
1586 if (!hdev_is_powered(hdev) && timeout > 0) {
1587 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1588 MGMT_STATUS_NOT_POWERED);
1589 goto failed;
1590 }
1591
1592 if (pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
1593 pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
1594 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1595 MGMT_STATUS_BUSY);
1596 goto failed;
1597 }
1598
1599 if (!hci_dev_test_flag(hdev, HCI_CONNECTABLE)) {
1600 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1601 MGMT_STATUS_REJECTED);
1602 goto failed;
1603 }
1604
1605 if (hdev->advertising_paused) {
1606 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
1607 MGMT_STATUS_BUSY);
1608 goto failed;
1609 }
1610
1611 if (!hdev_is_powered(hdev)) {
1612 bool changed = false;
1613
1614 /* Setting limited discoverable when powered off is
1615 * not a valid operation since it requires a timeout
1616 * and so no need to check HCI_LIMITED_DISCOVERABLE.
1617 */
1618 if (!!cp->val != hci_dev_test_flag(hdev, HCI_DISCOVERABLE)) {
1619 hci_dev_change_flag(hdev, HCI_DISCOVERABLE);
1620 changed = true;
1621 }
1622
1623 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1624 if (err < 0)
1625 goto failed;
1626
1627 if (changed)
1628 err = new_settings(hdev, sk);
1629
1630 goto failed;
1631 }
1632
1633 /* If the current mode is the same, then just update the timeout
1634 * value with the new value. And if only the timeout gets updated,
1635 * then no need for any HCI transactions.
1636 */
1637 if (!!cp->val == hci_dev_test_flag(hdev, HCI_DISCOVERABLE) &&
1638 (cp->val == 0x02) == hci_dev_test_flag(hdev,
1639 HCI_LIMITED_DISCOVERABLE)) {
1640 cancel_delayed_work(&hdev->discov_off);
1641 hdev->discov_timeout = timeout;
1642
1643 if (cp->val && hdev->discov_timeout > 0) {
1644 int to = msecs_to_jiffies(hdev->discov_timeout * 1000);
1645 queue_delayed_work(hdev->req_workqueue,
1646 &hdev->discov_off, to);
1647 }
1648
1649 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
1650 goto failed;
1651 }
1652
1653 cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
1654 if (!cmd) {
1655 err = -ENOMEM;
1656 goto failed;
1657 }
1658
1659 /* Cancel any potential discoverable timeout that might be
1660 * still active and store new timeout value. The arming of
1661 * the timeout happens in the complete handler.
1662 */
1663 cancel_delayed_work(&hdev->discov_off);
1664 hdev->discov_timeout = timeout;
1665
1666 if (cp->val)
1667 hci_dev_set_flag(hdev, HCI_DISCOVERABLE);
1668 else
1669 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
1670
1671 /* Limited discoverable mode */
1672 if (cp->val == 0x02)
1673 hci_dev_set_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1674 else
1675 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1676
1677 err = hci_cmd_sync_queue(hdev, set_discoverable_sync, cmd,
1678 mgmt_set_discoverable_complete);
1679
1680 if (err < 0)
1681 mgmt_pending_remove(cmd);
1682
1683 failed:
1684 hci_dev_unlock(hdev);
1685 return err;
1686 }
1687
1688 static void mgmt_set_connectable_complete(struct hci_dev *hdev, void *data,
1689 int err)
1690 {
1691 struct mgmt_pending_cmd *cmd = data;
1692
1693 bt_dev_dbg(hdev, "err %d", err);
1694
1695 /* Make sure cmd still outstanding. */
1696 if (err == -ECANCELED ||
1697 cmd != pending_find(MGMT_OP_SET_CONNECTABLE, hdev))
1698 return;
1699
1700 hci_dev_lock(hdev);
1701
1702 if (err) {
1703 u8 mgmt_err = mgmt_status(err);
1704 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
1705 goto done;
1706 }
1707
1708 send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);
1709 new_settings(hdev, cmd->sk);
1710
1711 done:
1712 mgmt_pending_remove(cmd);
1713
1714 hci_dev_unlock(hdev);
1715 }
1716
1717 static int set_connectable_update_settings(struct hci_dev *hdev,
1718 struct sock *sk, u8 val)
1719 {
1720 bool changed = false;
1721 int err;
1722
1723 if (!!val != hci_dev_test_flag(hdev, HCI_CONNECTABLE))
1724 changed = true;
1725
1726 if (val) {
1727 hci_dev_set_flag(hdev, HCI_CONNECTABLE);
1728 } else {
1729 hci_dev_clear_flag(hdev, HCI_CONNECTABLE);
1730 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
1731 }
1732
1733 err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
1734 if (err < 0)
1735 return err;
1736
1737 if (changed) {
1738 hci_update_scan(hdev);
1739 hci_update_passive_scan(hdev);
1740 return new_settings(hdev, sk);
1741 }
1742
1743 return 0;
1744 }
1745
1746 static int set_connectable_sync(struct hci_dev *hdev, void *data)
1747 {
1748 BT_DBG("%s", hdev->name);
1749
1750 return hci_update_connectable_sync(hdev);
1751 }
1752
1753 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
1754 u16 len)
1755 {
1756 struct mgmt_mode *cp = data;
1757 struct mgmt_pending_cmd *cmd;
1758 int err;
1759
1760 bt_dev_dbg(hdev, "sock %p", sk);
1761
1762 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) &&
1763 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
1764 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
1765 MGMT_STATUS_REJECTED);
1766
1767 if (cp->val != 0x00 && cp->val != 0x01)
1768 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
1769 MGMT_STATUS_INVALID_PARAMS);
1770
1771 hci_dev_lock(hdev);
1772
1773 if (!hdev_is_powered(hdev)) {
1774 err = set_connectable_update_settings(hdev, sk, cp->val);
1775 goto failed;
1776 }
1777
1778 if (pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
1779 pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
1780 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
1781 MGMT_STATUS_BUSY);
1782 goto failed;
1783 }
1784
1785 cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
1786 if (!cmd) {
1787 err = -ENOMEM;
1788 goto failed;
1789 }
1790
1791 if (cp->val) {
1792 hci_dev_set_flag(hdev, HCI_CONNECTABLE);
1793 } else {
1794 if (hdev->discov_timeout > 0)
1795 cancel_delayed_work(&hdev->discov_off);
1796
1797 hci_dev_clear_flag(hdev, HCI_LIMITED_DISCOVERABLE);
1798 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
1799 hci_dev_clear_flag(hdev, HCI_CONNECTABLE);
1800 }
1801
1802 err = hci_cmd_sync_queue(hdev, set_connectable_sync, cmd,
1803 mgmt_set_connectable_complete);
1804
1805 if (err < 0)
1806 mgmt_pending_remove(cmd);
1807
1808 failed:
1809 hci_dev_unlock(hdev);
1810 return err;
1811 }
1812
1813 static int set_bondable(struct sock *sk, struct hci_dev *hdev, void *data,
1814 u16 len)
1815 {
1816 struct mgmt_mode *cp = data;
1817 bool changed;
1818 int err;
1819
1820 bt_dev_dbg(hdev, "sock %p", sk);
1821
1822 if (cp->val != 0x00 && cp->val != 0x01)
1823 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BONDABLE,
1824 MGMT_STATUS_INVALID_PARAMS);
1825
1826 hci_dev_lock(hdev);
1827
1828 if (cp->val)
1829 changed = !hci_dev_test_and_set_flag(hdev, HCI_BONDABLE);
1830 else
1831 changed = hci_dev_test_and_clear_flag(hdev, HCI_BONDABLE);
1832
1833 err = send_settings_rsp(sk, MGMT_OP_SET_BONDABLE, hdev);
1834 if (err < 0)
1835 goto unlock;
1836
1837 if (changed) {
1838 /* In limited privacy mode the change of bondable mode
1839 * may affect the local advertising address.
1840 */
1841 hci_update_discoverable(hdev);
1842
1843 err = new_settings(hdev, sk);
1844 }
1845
1846 unlock:
1847 hci_dev_unlock(hdev);
1848 return err;
1849 }
1850
1851 static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
1852 u16 len)
1853 {
1854 struct mgmt_mode *cp = data;
1855 struct mgmt_pending_cmd *cmd;
1856 u8 val, status;
1857 int err;
1858
1859 bt_dev_dbg(hdev, "sock %p", sk);
1860
1861 status = mgmt_bredr_support(hdev);
1862 if (status)
1863 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
1864 status);
1865
1866 if (cp->val != 0x00 && cp->val != 0x01)
1867 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
1868 MGMT_STATUS_INVALID_PARAMS);
1869
1870 hci_dev_lock(hdev);
1871
1872 if (!hdev_is_powered(hdev)) {
1873 bool changed = false;
1874
1875 if (!!cp->val != hci_dev_test_flag(hdev, HCI_LINK_SECURITY)) {
1876 hci_dev_change_flag(hdev, HCI_LINK_SECURITY);
1877 changed = true;
1878 }
1879
1880 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
1881 if (err < 0)
1882 goto failed;
1883
1884 if (changed)
1885 err = new_settings(hdev, sk);
1886
1887 goto failed;
1888 }
1889
1890 if (pending_find(MGMT_OP_SET_LINK_SECURITY, hdev)) {
1891 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
1892 MGMT_STATUS_BUSY);
1893 goto failed;
1894 }
1895
1896 val = !!cp->val;
1897
1898 if (test_bit(HCI_AUTH, &hdev->flags) == val) {
1899 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
1900 goto failed;
1901 }
1902
1903 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LINK_SECURITY, hdev, data, len);
1904 if (!cmd) {
1905 err = -ENOMEM;
1906 goto failed;
1907 }
1908
1909 err = hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(val), &val);
1910 if (err < 0) {
1911 mgmt_pending_remove(cmd);
1912 goto failed;
1913 }
1914
1915 failed:
1916 hci_dev_unlock(hdev);
1917 return err;
1918 }
1919
1920 static void set_ssp_complete(struct hci_dev *hdev, void *data, int err)
1921 {
1922 struct cmd_lookup match = { NULL, hdev };
1923 struct mgmt_pending_cmd *cmd = data;
1924 struct mgmt_mode *cp = cmd->param;
1925 u8 enable = cp->val;
1926 bool changed;
1927
1928 /* Make sure cmd still outstanding. */
1929 if (err == -ECANCELED || cmd != pending_find(MGMT_OP_SET_SSP, hdev))
1930 return;
1931
1932 if (err) {
1933 u8 mgmt_err = mgmt_status(err);
1934
1935 if (enable && hci_dev_test_and_clear_flag(hdev,
1936 HCI_SSP_ENABLED)) {
1937 new_settings(hdev, NULL);
1938 }
1939
1940 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, cmd_status_rsp,
1941 &mgmt_err);
1942 return;
1943 }
1944
1945 if (enable) {
1946 changed = !hci_dev_test_and_set_flag(hdev, HCI_SSP_ENABLED);
1947 } else {
1948 changed = hci_dev_test_and_clear_flag(hdev, HCI_SSP_ENABLED);
1949 }
1950
1951 mgmt_pending_foreach(MGMT_OP_SET_SSP, hdev, settings_rsp, &match);
1952
1953 if (changed)
1954 new_settings(hdev, match.sk);
1955
1956 if (match.sk)
1957 sock_put(match.sk);
1958
1959 hci_update_eir_sync(hdev);
1960 }
1961
1962 static int set_ssp_sync(struct hci_dev *hdev, void *data)
1963 {
1964 struct mgmt_pending_cmd *cmd = data;
1965 struct mgmt_mode *cp = cmd->param;
1966 bool changed = false;
1967 int err;
1968
1969 if (cp->val)
1970 changed = !hci_dev_test_and_set_flag(hdev, HCI_SSP_ENABLED);
1971
1972 err = hci_write_ssp_mode_sync(hdev, cp->val);
1973
1974 if (!err && changed)
1975 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
1976
1977 return err;
1978 }
1979
1980 static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1981 {
1982 struct mgmt_mode *cp = data;
1983 struct mgmt_pending_cmd *cmd;
1984 u8 status;
1985 int err;
1986
1987 bt_dev_dbg(hdev, "sock %p", sk);
1988
1989 status = mgmt_bredr_support(hdev);
1990 if (status)
1991 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP, status);
1992
1993 if (!lmp_ssp_capable(hdev))
1994 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
1995 MGMT_STATUS_NOT_SUPPORTED);
1996
1997 if (cp->val != 0x00 && cp->val != 0x01)
1998 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
1999 MGMT_STATUS_INVALID_PARAMS);
2000
2001 hci_dev_lock(hdev);
2002
2003 if (!hdev_is_powered(hdev)) {
2004 bool changed;
2005
2006 if (cp->val) {
2007 changed = !hci_dev_test_and_set_flag(hdev,
2008 HCI_SSP_ENABLED);
2009 } else {
2010 changed = hci_dev_test_and_clear_flag(hdev,
2011 HCI_SSP_ENABLED);
2012 }
2013
2014 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
2015 if (err < 0)
2016 goto failed;
2017
2018 if (changed)
2019 err = new_settings(hdev, sk);
2020
2021 goto failed;
2022 }
2023
2024 if (pending_find(MGMT_OP_SET_SSP, hdev)) {
2025 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2026 MGMT_STATUS_BUSY);
2027 goto failed;
2028 }
2029
2030 if (!!cp->val == hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
2031 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
2032 goto failed;
2033 }
2034
2035 cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len);
2036 if (!cmd)
2037 err = -ENOMEM;
2038 else
2039 err = hci_cmd_sync_queue(hdev, set_ssp_sync, cmd,
2040 set_ssp_complete);
2041
2042 if (err < 0) {
2043 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
2044 MGMT_STATUS_FAILED);
2045
2046 if (cmd)
2047 mgmt_pending_remove(cmd);
2048 }
2049
2050 failed:
2051 hci_dev_unlock(hdev);
2052 return err;
2053 }
2054
2055 static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2056 {
2057 bt_dev_dbg(hdev, "sock %p", sk);
2058
2059 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
2060 MGMT_STATUS_NOT_SUPPORTED);
2061 }
2062
2063 static void set_le_complete(struct hci_dev *hdev, void *data, int err)
2064 {
2065 struct cmd_lookup match = { NULL, hdev };
2066 u8 status = mgmt_status(err);
2067
2068 bt_dev_dbg(hdev, "err %d", err);
2069
2070 if (status) {
2071 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, cmd_status_rsp,
2072 &status);
2073 return;
2074 }
2075
2076 mgmt_pending_foreach(MGMT_OP_SET_LE, hdev, settings_rsp, &match);
2077
2078 new_settings(hdev, match.sk);
2079
2080 if (match.sk)
2081 sock_put(match.sk);
2082 }
2083
2084 static int set_le_sync(struct hci_dev *hdev, void *data)
2085 {
2086 struct mgmt_pending_cmd *cmd = data;
2087 struct mgmt_mode *cp = cmd->param;
2088 u8 val = !!cp->val;
2089 int err;
2090
2091 if (!val) {
2092 hci_clear_adv_instance_sync(hdev, NULL, 0x00, true);
2093
2094 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
2095 hci_disable_advertising_sync(hdev);
2096
2097 if (ext_adv_capable(hdev))
2098 hci_remove_ext_adv_instance_sync(hdev, 0, cmd->sk);
2099 } else {
2100 hci_dev_set_flag(hdev, HCI_LE_ENABLED);
2101 }
2102
2103 err = hci_write_le_host_supported_sync(hdev, val, 0);
2104
2105 /* Make sure the controller has a good default for
2106 * advertising data. Restrict the update to when LE
2107 * has actually been enabled. During power on, the
2108 * update in powered_update_hci will take care of it.
2109 */
2110 if (!err && hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
2111 if (ext_adv_capable(hdev)) {
2112 int status;
2113
2114 status = hci_setup_ext_adv_instance_sync(hdev, 0x00);
2115 if (!status)
2116 hci_update_scan_rsp_data_sync(hdev, 0x00);
2117 } else {
2118 hci_update_adv_data_sync(hdev, 0x00);
2119 hci_update_scan_rsp_data_sync(hdev, 0x00);
2120 }
2121
2122 hci_update_passive_scan(hdev);
2123 }
2124
2125 return err;
2126 }
2127
2128 static void set_mesh_complete(struct hci_dev *hdev, void *data, int err)
2129 {
2130 struct mgmt_pending_cmd *cmd = data;
2131 u8 status = mgmt_status(err);
2132 struct sock *sk = cmd->sk;
2133
2134 if (status) {
2135 mgmt_pending_foreach(MGMT_OP_SET_MESH_RECEIVER, hdev,
2136 cmd_status_rsp, &status);
2137 return;
2138 }
2139
2140 mgmt_pending_remove(cmd);
2141 mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_MESH_RECEIVER, 0, NULL, 0);
2142 }
2143
2144 static int set_mesh_sync(struct hci_dev *hdev, void *data)
2145 {
2146 struct mgmt_pending_cmd *cmd = data;
2147 struct mgmt_cp_set_mesh *cp = cmd->param;
2148 size_t len = cmd->param_len;
2149
2150 memset(hdev->mesh_ad_types, 0, sizeof(hdev->mesh_ad_types));
2151
2152 if (cp->enable)
2153 hci_dev_set_flag(hdev, HCI_MESH);
2154 else
2155 hci_dev_clear_flag(hdev, HCI_MESH);
2156
2157 len -= sizeof(*cp);
2158
2159 /* If filters don't fit, forward all adv pkts */
2160 if (len <= sizeof(hdev->mesh_ad_types))
2161 memcpy(hdev->mesh_ad_types, cp->ad_types, len);
2162
2163 hci_update_passive_scan_sync(hdev);
2164 return 0;
2165 }
2166
2167 static int set_mesh(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2168 {
2169 struct mgmt_cp_set_mesh *cp = data;
2170 struct mgmt_pending_cmd *cmd;
2171 int err = 0;
2172
2173 bt_dev_dbg(hdev, "sock %p", sk);
2174
2175 if (!lmp_le_capable(hdev) ||
2176 !hci_dev_test_flag(hdev, HCI_MESH_EXPERIMENTAL))
2177 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_MESH_RECEIVER,
2178 MGMT_STATUS_NOT_SUPPORTED);
2179
2180 if (cp->enable != 0x00 && cp->enable != 0x01)
2181 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_MESH_RECEIVER,
2182 MGMT_STATUS_INVALID_PARAMS);
2183
2184 hci_dev_lock(hdev);
2185
2186 cmd = mgmt_pending_add(sk, MGMT_OP_SET_MESH_RECEIVER, hdev, data, len);
2187 if (!cmd)
2188 err = -ENOMEM;
2189 else
2190 err = hci_cmd_sync_queue(hdev, set_mesh_sync, cmd,
2191 set_mesh_complete);
2192
2193 if (err < 0) {
2194 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_MESH_RECEIVER,
2195 MGMT_STATUS_FAILED);
2196
2197 if (cmd)
2198 mgmt_pending_remove(cmd);
2199 }
2200
2201 hci_dev_unlock(hdev);
2202 return err;
2203 }
2204
2205 static void mesh_send_start_complete(struct hci_dev *hdev, void *data, int err)
2206 {
2207 struct mgmt_mesh_tx *mesh_tx = data;
2208 struct mgmt_cp_mesh_send *send = (void *)mesh_tx->param;
2209 unsigned long mesh_send_interval;
2210 u8 mgmt_err = mgmt_status(err);
2211
2212 /* Report any errors here, but don't report completion */
2213
2214 if (mgmt_err) {
2215 hci_dev_clear_flag(hdev, HCI_MESH_SENDING);
2216 /* Send Complete Error Code for handle */
2217 mesh_send_complete(hdev, mesh_tx, false);
2218 return;
2219 }
2220
2221 mesh_send_interval = msecs_to_jiffies((send->cnt) * 25);
2222 queue_delayed_work(hdev->req_workqueue, &hdev->mesh_send_done,
2223 mesh_send_interval);
2224 }
2225
2226 static int mesh_send_sync(struct hci_dev *hdev, void *data)
2227 {
2228 struct mgmt_mesh_tx *mesh_tx = data;
2229 struct mgmt_cp_mesh_send *send = (void *)mesh_tx->param;
2230 struct adv_info *adv, *next_instance;
2231 u8 instance = hdev->le_num_of_adv_sets + 1;
2232 u16 timeout, duration;
2233 int err = 0;
2234
2235 if (hdev->le_num_of_adv_sets <= hdev->adv_instance_cnt)
2236 return MGMT_STATUS_BUSY;
2237
2238 timeout = 1000;
2239 duration = send->cnt * INTERVAL_TO_MS(hdev->le_adv_max_interval);
2240 adv = hci_add_adv_instance(hdev, instance, 0,
2241 send->adv_data_len, send->adv_data,
2242 0, NULL,
2243 timeout, duration,
2244 HCI_ADV_TX_POWER_NO_PREFERENCE,
2245 hdev->le_adv_min_interval,
2246 hdev->le_adv_max_interval,
2247 mesh_tx->handle);
2248
2249 if (!IS_ERR(adv))
2250 mesh_tx->instance = instance;
2251 else
2252 err = PTR_ERR(adv);
2253
2254 if (hdev->cur_adv_instance == instance) {
2255 /* If the currently advertised instance is being changed then
2256 * cancel the current advertising and schedule the next
2257 * instance. If there is only one instance then the overridden
2258 * advertising data will be visible right away.
2259 */
2260 cancel_adv_timeout(hdev);
2261
2262 next_instance = hci_get_next_instance(hdev, instance);
2263 if (next_instance)
2264 instance = next_instance->instance;
2265 else
2266 instance = 0;
2267 } else if (hdev->adv_instance_timeout) {
2268 /* Immediately advertise the new instance if no other, or
2269 * let it go naturally from queue if ADV is already happening
2270 */
2271 instance = 0;
2272 }
2273
2274 if (instance)
2275 return hci_schedule_adv_instance_sync(hdev, instance, true);
2276
2277 return err;
2278 }
2279
2280 static void send_count(struct mgmt_mesh_tx *mesh_tx, void *data)
2281 {
2282 struct mgmt_rp_mesh_read_features *rp = data;
2283
2284 if (rp->used_handles >= rp->max_handles)
2285 return;
2286
2287 rp->handles[rp->used_handles++] = mesh_tx->handle;
2288 }
2289
2290 static int mesh_features(struct sock *sk, struct hci_dev *hdev,
2291 void *data, u16 len)
2292 {
2293 struct mgmt_rp_mesh_read_features rp;
2294
2295 if (!lmp_le_capable(hdev) ||
2296 !hci_dev_test_flag(hdev, HCI_MESH_EXPERIMENTAL))
2297 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_READ_FEATURES,
2298 MGMT_STATUS_NOT_SUPPORTED);
2299
2300 memset(&rp, 0, sizeof(rp));
2301 rp.index = cpu_to_le16(hdev->id);
2302 if (hci_dev_test_flag(hdev, HCI_LE_ENABLED))
2303 rp.max_handles = MESH_HANDLES_MAX;
2304
2305 hci_dev_lock(hdev);
2306
2307 if (rp.max_handles)
2308 mgmt_mesh_foreach(hdev, send_count, &rp, sk);
2309
2310 mgmt_cmd_complete(sk, hdev->id, MGMT_OP_MESH_READ_FEATURES, 0, &rp,
2311 rp.used_handles + sizeof(rp) - MESH_HANDLES_MAX);
2312
2313 hci_dev_unlock(hdev);
2314 return 0;
2315 }
2316
2317 static int send_cancel(struct hci_dev *hdev, void *data)
2318 {
2319 struct mgmt_pending_cmd *cmd = data;
2320 struct mgmt_cp_mesh_send_cancel *cancel = (void *)cmd->param;
2321 struct mgmt_mesh_tx *mesh_tx;
2322
2323 if (!cancel->handle) {
2324 do {
2325 mesh_tx = mgmt_mesh_next(hdev, cmd->sk);
2326
2327 if (mesh_tx)
2328 mesh_send_complete(hdev, mesh_tx, false);
2329 } while (mesh_tx);
2330 } else {
2331 mesh_tx = mgmt_mesh_find(hdev, cancel->handle);
2332
2333 if (mesh_tx && mesh_tx->sk == cmd->sk)
2334 mesh_send_complete(hdev, mesh_tx, false);
2335 }
2336
2337 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_MESH_SEND_CANCEL,
2338 0, NULL, 0);
2339 mgmt_pending_free(cmd);
2340
2341 return 0;
2342 }
2343
2344 static int mesh_send_cancel(struct sock *sk, struct hci_dev *hdev,
2345 void *data, u16 len)
2346 {
2347 struct mgmt_pending_cmd *cmd;
2348 int err;
2349
2350 if (!lmp_le_capable(hdev) ||
2351 !hci_dev_test_flag(hdev, HCI_MESH_EXPERIMENTAL))
2352 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND_CANCEL,
2353 MGMT_STATUS_NOT_SUPPORTED);
2354
2355 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
2356 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND_CANCEL,
2357 MGMT_STATUS_REJECTED);
2358
2359 hci_dev_lock(hdev);
2360 cmd = mgmt_pending_new(sk, MGMT_OP_MESH_SEND_CANCEL, hdev, data, len);
2361 if (!cmd)
2362 err = -ENOMEM;
2363 else
2364 err = hci_cmd_sync_queue(hdev, send_cancel, cmd, NULL);
2365
2366 if (err < 0) {
2367 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND_CANCEL,
2368 MGMT_STATUS_FAILED);
2369
2370 if (cmd)
2371 mgmt_pending_free(cmd);
2372 }
2373
2374 hci_dev_unlock(hdev);
2375 return err;
2376 }
2377
2378 static int mesh_send(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2379 {
2380 struct mgmt_mesh_tx *mesh_tx;
2381 struct mgmt_cp_mesh_send *send = data;
2382 struct mgmt_rp_mesh_read_features rp;
2383 bool sending;
2384 int err = 0;
2385
2386 if (!lmp_le_capable(hdev) ||
2387 !hci_dev_test_flag(hdev, HCI_MESH_EXPERIMENTAL))
2388 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND,
2389 MGMT_STATUS_NOT_SUPPORTED);
2390 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED) ||
2391 len <= MGMT_MESH_SEND_SIZE ||
2392 len > (MGMT_MESH_SEND_SIZE + 31))
2393 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND,
2394 MGMT_STATUS_REJECTED);
2395
2396 hci_dev_lock(hdev);
2397
2398 memset(&rp, 0, sizeof(rp));
2399 rp.max_handles = MESH_HANDLES_MAX;
2400
2401 mgmt_mesh_foreach(hdev, send_count, &rp, sk);
2402
2403 if (rp.max_handles <= rp.used_handles) {
2404 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND,
2405 MGMT_STATUS_BUSY);
2406 goto done;
2407 }
2408
2409 sending = hci_dev_test_flag(hdev, HCI_MESH_SENDING);
2410 mesh_tx = mgmt_mesh_add(sk, hdev, send, len);
2411
2412 if (!mesh_tx)
2413 err = -ENOMEM;
2414 else if (!sending)
2415 err = hci_cmd_sync_queue(hdev, mesh_send_sync, mesh_tx,
2416 mesh_send_start_complete);
2417
2418 if (err < 0) {
2419 bt_dev_err(hdev, "Send Mesh Failed %d", err);
2420 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_MESH_SEND,
2421 MGMT_STATUS_FAILED);
2422
2423 if (mesh_tx) {
2424 if (sending)
2425 mgmt_mesh_remove(mesh_tx);
2426 }
2427 } else {
2428 hci_dev_set_flag(hdev, HCI_MESH_SENDING);
2429
2430 mgmt_cmd_complete(sk, hdev->id, MGMT_OP_MESH_SEND, 0,
2431 &mesh_tx->handle, 1);
2432 }
2433
2434 done:
2435 hci_dev_unlock(hdev);
2436 return err;
2437 }
2438
2439 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2440 {
2441 struct mgmt_mode *cp = data;
2442 struct mgmt_pending_cmd *cmd;
2443 int err;
2444 u8 val, enabled;
2445
2446 bt_dev_dbg(hdev, "sock %p", sk);
2447
2448 if (!lmp_le_capable(hdev))
2449 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2450 MGMT_STATUS_NOT_SUPPORTED);
2451
2452 if (cp->val != 0x00 && cp->val != 0x01)
2453 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2454 MGMT_STATUS_INVALID_PARAMS);
2455
2456 /* Bluetooth single mode LE only controllers or dual-mode
2457 * controllers configured as LE only devices, do not allow
2458 * switching LE off. These have either LE enabled explicitly
2459 * or BR/EDR has been previously switched off.
2460 *
2461 * When trying to enable an already enabled LE, then gracefully
2462 * send a positive response. Trying to disable it however will
2463 * result into rejection.
2464 */
2465 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
2466 if (cp->val == 0x01)
2467 return send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
2468
2469 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2470 MGMT_STATUS_REJECTED);
2471 }
2472
2473 hci_dev_lock(hdev);
2474
2475 val = !!cp->val;
2476 enabled = lmp_host_le_capable(hdev);
2477
2478 if (!hdev_is_powered(hdev) || val == enabled) {
2479 bool changed = false;
2480
2481 if (val != hci_dev_test_flag(hdev, HCI_LE_ENABLED)) {
2482 hci_dev_change_flag(hdev, HCI_LE_ENABLED);
2483 changed = true;
2484 }
2485
2486 if (!val && hci_dev_test_flag(hdev, HCI_ADVERTISING)) {
2487 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
2488 changed = true;
2489 }
2490
2491 err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
2492 if (err < 0)
2493 goto unlock;
2494
2495 if (changed)
2496 err = new_settings(hdev, sk);
2497
2498 goto unlock;
2499 }
2500
2501 if (pending_find(MGMT_OP_SET_LE, hdev) ||
2502 pending_find(MGMT_OP_SET_ADVERTISING, hdev)) {
2503 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2504 MGMT_STATUS_BUSY);
2505 goto unlock;
2506 }
2507
2508 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len);
2509 if (!cmd)
2510 err = -ENOMEM;
2511 else
2512 err = hci_cmd_sync_queue(hdev, set_le_sync, cmd,
2513 set_le_complete);
2514
2515 if (err < 0) {
2516 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
2517 MGMT_STATUS_FAILED);
2518
2519 if (cmd)
2520 mgmt_pending_remove(cmd);
2521 }
2522
2523 unlock:
2524 hci_dev_unlock(hdev);
2525 return err;
2526 }
2527
2528 static int send_hci_cmd_sync(struct hci_dev *hdev, void *data)
2529 {
2530 struct mgmt_pending_cmd *cmd = data;
2531 struct mgmt_cp_hci_cmd_sync *cp = cmd->param;
2532 struct sk_buff *skb;
2533
2534 skb = __hci_cmd_sync_ev(hdev, le16_to_cpu(cp->opcode),
2535 le16_to_cpu(cp->params_len), cp->params,
2536 cp->event, cp->timeout ?
2537 msecs_to_jiffies(cp->timeout * 1000) :
2538 HCI_CMD_TIMEOUT);
2539 if (IS_ERR(skb)) {
2540 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_HCI_CMD_SYNC,
2541 mgmt_status(PTR_ERR(skb)));
2542 goto done;
2543 }
2544
2545 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_HCI_CMD_SYNC, 0,
2546 skb->data, skb->len);
2547
2548 kfree_skb(skb);
2549
2550 done:
2551 mgmt_pending_free(cmd);
2552
2553 return 0;
2554 }
2555
2556 static int mgmt_hci_cmd_sync(struct sock *sk, struct hci_dev *hdev,
2557 void *data, u16 len)
2558 {
2559 struct mgmt_cp_hci_cmd_sync *cp = data;
2560 struct mgmt_pending_cmd *cmd;
2561 int err;
2562
2563 if (len < sizeof(*cp))
2564 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_HCI_CMD_SYNC,
2565 MGMT_STATUS_INVALID_PARAMS);
2566
2567 hci_dev_lock(hdev);
2568 cmd = mgmt_pending_new(sk, MGMT_OP_HCI_CMD_SYNC, hdev, data, len);
2569 if (!cmd)
2570 err = -ENOMEM;
2571 else
2572 err = hci_cmd_sync_queue(hdev, send_hci_cmd_sync, cmd, NULL);
2573
2574 if (err < 0) {
2575 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_HCI_CMD_SYNC,
2576 MGMT_STATUS_FAILED);
2577
2578 if (cmd)
2579 mgmt_pending_free(cmd);
2580 }
2581
2582 hci_dev_unlock(hdev);
2583 return err;
2584 }
2585
2586 /* This is a helper function to test for pending mgmt commands that can
2587 * cause CoD or EIR HCI commands. We can only allow one such pending
2588 * mgmt command at a time since otherwise we cannot easily track what
2589 * the current values are, will be, and based on that calculate if a new
2590 * HCI command needs to be sent and if yes with what value.
2591 */
2592 static bool pending_eir_or_class(struct hci_dev *hdev)
2593 {
2594 struct mgmt_pending_cmd *cmd;
2595
2596 list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
2597 switch (cmd->opcode) {
2598 case MGMT_OP_ADD_UUID:
2599 case MGMT_OP_REMOVE_UUID:
2600 case MGMT_OP_SET_DEV_CLASS:
2601 case MGMT_OP_SET_POWERED:
2602 return true;
2603 }
2604 }
2605
2606 return false;
2607 }
2608
2609 static const u8 bluetooth_base_uuid[] = {
2610 0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
2611 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
2612 };
2613
2614 static u8 get_uuid_size(const u8 *uuid)
2615 {
2616 u32 val;
2617
2618 if (memcmp(uuid, bluetooth_base_uuid, 12))
2619 return 128;
2620
2621 val = get_unaligned_le32(&uuid[12]);
2622 if (val > 0xffff)
2623 return 32;
2624
2625 return 16;
2626 }
2627
2628 static void mgmt_class_complete(struct hci_dev *hdev, void *data, int err)
2629 {
2630 struct mgmt_pending_cmd *cmd = data;
2631
2632 bt_dev_dbg(hdev, "err %d", err);
2633
2634 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
2635 mgmt_status(err), hdev->dev_class, 3);
2636
2637 mgmt_pending_free(cmd);
2638 }
2639
2640 static int add_uuid_sync(struct hci_dev *hdev, void *data)
2641 {
2642 int err;
2643
2644 err = hci_update_class_sync(hdev);
2645 if (err)
2646 return err;
2647
2648 return hci_update_eir_sync(hdev);
2649 }
2650
2651 static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
2652 {
2653 struct mgmt_cp_add_uuid *cp = data;
2654 struct mgmt_pending_cmd *cmd;
2655 struct bt_uuid *uuid;
2656 int err;
2657
2658 bt_dev_dbg(hdev, "sock %p", sk);
2659
2660 hci_dev_lock(hdev);
2661
2662 if (pending_eir_or_class(hdev)) {
2663 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_UUID,
2664 MGMT_STATUS_BUSY);
2665 goto failed;
2666 }
2667
2668 uuid = kmalloc(sizeof(*uuid), GFP_KERNEL);
2669 if (!uuid) {
2670 err = -ENOMEM;
2671 goto failed;
2672 }
2673
2674 memcpy(uuid->uuid, cp->uuid, 16);
2675 uuid->svc_hint = cp->svc_hint;
2676 uuid->size = get_uuid_size(cp->uuid);
2677
2678 list_add_tail(&uuid->list, &hdev->uuids);
2679
2680 cmd = mgmt_pending_new(sk, MGMT_OP_ADD_UUID, hdev, data, len);
2681 if (!cmd) {
2682 err = -ENOMEM;
2683 goto failed;
2684 }
2685
2686 /* MGMT_OP_ADD_UUID don't require adapter the UP/Running so use
2687 * hci_cmd_sync_submit instead of hci_cmd_sync_queue.
2688 */
2689 err = hci_cmd_sync_submit(hdev, add_uuid_sync, cmd,
2690 mgmt_class_complete);
2691 if (err < 0) {
2692 mgmt_pending_free(cmd);
2693 goto failed;
2694 }
2695
2696 failed:
2697 hci_dev_unlock(hdev);
2698 return err;
2699 }
2700
2701 static bool enable_service_cache(struct hci_dev *hdev)
2702 {
2703 if (!hdev_is_powered(hdev))
2704 return false;
2705
2706 if (!hci_dev_test_and_set_flag(hdev, HCI_SERVICE_CACHE)) {
2707 queue_delayed_work(hdev->workqueue, &hdev->service_cache,
2708 CACHE_TIMEOUT);
2709 return true;
2710 }
2711
2712 return false;
2713 }
2714
2715 static int remove_uuid_sync(struct hci_dev *hdev, void *data)
2716 {
2717 int err;
2718
2719 err = hci_update_class_sync(hdev);
2720 if (err)
2721 return err;
2722
2723 return hci_update_eir_sync(hdev);
2724 }
2725
2726 static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
2727 u16 len)
2728 {
2729 struct mgmt_cp_remove_uuid *cp = data;
2730 struct mgmt_pending_cmd *cmd;
2731 struct bt_uuid *match, *tmp;
2732 static const u8 bt_uuid_any[] = {
2733 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
2734 };
2735 int err, found;
2736
2737 bt_dev_dbg(hdev, "sock %p", sk);
2738
2739 hci_dev_lock(hdev);
2740
2741 if (pending_eir_or_class(hdev)) {
2742 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
2743 MGMT_STATUS_BUSY);
2744 goto unlock;
2745 }
2746
2747 if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
2748 hci_uuids_clear(hdev);
2749
2750 if (enable_service_cache(hdev)) {
2751 err = mgmt_cmd_complete(sk, hdev->id,
2752 MGMT_OP_REMOVE_UUID,
2753 0, hdev->dev_class, 3);
2754 goto unlock;
2755 }
2756
2757 goto update_class;
2758 }
2759
2760 found = 0;
2761
2762 list_for_each_entry_safe(match, tmp, &hdev->uuids, list) {
2763 if (memcmp(match->uuid, cp->uuid, 16) != 0)
2764 continue;
2765
2766 list_del(&match->list);
2767 kfree(match);
2768 found++;
2769 }
2770
2771 if (found == 0) {
2772 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
2773 MGMT_STATUS_INVALID_PARAMS);
2774 goto unlock;
2775 }
2776
2777 update_class:
2778 cmd = mgmt_pending_new(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
2779 if (!cmd) {
2780 err = -ENOMEM;
2781 goto unlock;
2782 }
2783
2784 /* MGMT_OP_REMOVE_UUID don't require adapter the UP/Running so use
2785 * hci_cmd_sync_submit instead of hci_cmd_sync_queue.
2786 */
2787 err = hci_cmd_sync_submit(hdev, remove_uuid_sync, cmd,
2788 mgmt_class_complete);
2789 if (err < 0)
2790 mgmt_pending_free(cmd);
2791
2792 unlock:
2793 hci_dev_unlock(hdev);
2794 return err;
2795 }
2796
2797 static int set_class_sync(struct hci_dev *hdev, void *data)
2798 {
2799 int err = 0;
2800
2801 if (hci_dev_test_and_clear_flag(hdev, HCI_SERVICE_CACHE)) {
2802 cancel_delayed_work_sync(&hdev->service_cache);
2803 err = hci_update_eir_sync(hdev);
2804 }
2805
2806 if (err)
2807 return err;
2808
2809 return hci_update_class_sync(hdev);
2810 }
2811
2812 static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
2813 u16 len)
2814 {
2815 struct mgmt_cp_set_dev_class *cp = data;
2816 struct mgmt_pending_cmd *cmd;
2817 int err;
2818
2819 bt_dev_dbg(hdev, "sock %p", sk);
2820
2821 if (!lmp_bredr_capable(hdev))
2822 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2823 MGMT_STATUS_NOT_SUPPORTED);
2824
2825 hci_dev_lock(hdev);
2826
2827 if (pending_eir_or_class(hdev)) {
2828 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2829 MGMT_STATUS_BUSY);
2830 goto unlock;
2831 }
2832
2833 if ((cp->minor & 0x03) != 0 || (cp->major & 0xe0) != 0) {
2834 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
2835 MGMT_STATUS_INVALID_PARAMS);
2836 goto unlock;
2837 }
2838
2839 hdev->major_class = cp->major;
2840 hdev->minor_class = cp->minor;
2841
2842 if (!hdev_is_powered(hdev)) {
2843 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
2844 hdev->dev_class, 3);
2845 goto unlock;
2846 }
2847
2848 cmd = mgmt_pending_new(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
2849 if (!cmd) {
2850 err = -ENOMEM;
2851 goto unlock;
2852 }
2853
2854 /* MGMT_OP_SET_DEV_CLASS don't require adapter the UP/Running so use
2855 * hci_cmd_sync_submit instead of hci_cmd_sync_queue.
2856 */
2857 err = hci_cmd_sync_submit(hdev, set_class_sync, cmd,
2858 mgmt_class_complete);
2859 if (err < 0)
2860 mgmt_pending_free(cmd);
2861
2862 unlock:
2863 hci_dev_unlock(hdev);
2864 return err;
2865 }
2866
2867 static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
2868 u16 len)
2869 {
2870 struct mgmt_cp_load_link_keys *cp = data;
2871 const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
2872 sizeof(struct mgmt_link_key_info));
2873 u16 key_count, expected_len;
2874 bool changed;
2875 int i;
2876
2877 bt_dev_dbg(hdev, "sock %p", sk);
2878
2879 if (!lmp_bredr_capable(hdev))
2880 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2881 MGMT_STATUS_NOT_SUPPORTED);
2882
2883 key_count = __le16_to_cpu(cp->key_count);
2884 if (key_count > max_key_count) {
2885 bt_dev_err(hdev, "load_link_keys: too big key_count value %u",
2886 key_count);
2887 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2888 MGMT_STATUS_INVALID_PARAMS);
2889 }
2890
2891 expected_len = struct_size(cp, keys, key_count);
2892 if (expected_len != len) {
2893 bt_dev_err(hdev, "load_link_keys: expected %u bytes, got %u bytes",
2894 expected_len, len);
2895 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2896 MGMT_STATUS_INVALID_PARAMS);
2897 }
2898
2899 if (cp->debug_keys != 0x00 && cp->debug_keys != 0x01)
2900 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
2901 MGMT_STATUS_INVALID_PARAMS);
2902
2903 bt_dev_dbg(hdev, "debug_keys %u key_count %u", cp->debug_keys,
2904 key_count);
2905
2906 hci_dev_lock(hdev);
2907
2908 hci_link_keys_clear(hdev);
2909
2910 if (cp->debug_keys)
2911 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
2912 else
2913 changed = hci_dev_test_and_clear_flag(hdev,
2914 HCI_KEEP_DEBUG_KEYS);
2915
2916 if (changed)
2917 new_settings(hdev, NULL);
2918
2919 for (i = 0; i < key_count; i++) {
2920 struct mgmt_link_key_info *key = &cp->keys[i];
2921
2922 if (hci_is_blocked_key(hdev,
2923 HCI_BLOCKED_KEY_TYPE_LINKKEY,
2924 key->val)) {
2925 bt_dev_warn(hdev, "Skipping blocked link key for %pMR",
2926 &key->addr.bdaddr);
2927 continue;
2928 }
2929
2930 if (key->addr.type != BDADDR_BREDR) {
2931 bt_dev_warn(hdev,
2932 "Invalid link address type %u for %pMR",
2933 key->addr.type, &key->addr.bdaddr);
2934 continue;
2935 }
2936
2937 if (key->type > 0x08) {
2938 bt_dev_warn(hdev, "Invalid link key type %u for %pMR",
2939 key->type, &key->addr.bdaddr);
2940 continue;
2941 }
2942
2943 /* Always ignore debug keys and require a new pairing if
2944 * the user wants to use them.
2945 */
2946 if (key->type == HCI_LK_DEBUG_COMBINATION)
2947 continue;
2948
2949 hci_add_link_key(hdev, NULL, &key->addr.bdaddr, key->val,
2950 key->type, key->pin_len, NULL);
2951 }
2952
2953 mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 0, NULL, 0);
2954
2955 hci_dev_unlock(hdev);
2956
2957 return 0;
2958 }
2959
2960 static int device_unpaired(struct hci_dev *hdev, bdaddr_t *bdaddr,
2961 u8 addr_type, struct sock *skip_sk)
2962 {
2963 struct mgmt_ev_device_unpaired ev;
2964
2965 bacpy(&ev.addr.bdaddr, bdaddr);
2966 ev.addr.type = addr_type;
2967
2968 return mgmt_event(MGMT_EV_DEVICE_UNPAIRED, hdev, &ev, sizeof(ev),
2969 skip_sk);
2970 }
2971
2972 static void unpair_device_complete(struct hci_dev *hdev, void *data, int err)
2973 {
2974 struct mgmt_pending_cmd *cmd = data;
2975 struct mgmt_cp_unpair_device *cp = cmd->param;
2976
2977 if (!err)
2978 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk);
2979
2980 cmd->cmd_complete(cmd, err);
2981 mgmt_pending_free(cmd);
2982 }
2983
2984 static int unpair_device_sync(struct hci_dev *hdev, void *data)
2985 {
2986 struct mgmt_pending_cmd *cmd = data;
2987 struct mgmt_cp_unpair_device *cp = cmd->param;
2988 struct hci_conn *conn;
2989
2990 if (cp->addr.type == BDADDR_BREDR)
2991 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
2992 &cp->addr.bdaddr);
2993 else
2994 conn = hci_conn_hash_lookup_le(hdev, &cp->addr.bdaddr,
2995 le_addr_type(cp->addr.type));
2996
2997 if (!conn)
2998 return 0;
2999
3000 /* Disregard any possible error since the likes of hci_abort_conn_sync
3001 * will clean up the connection no matter the error.
3002 */
3003 hci_abort_conn(conn, HCI_ERROR_REMOTE_USER_TERM);
3004
3005 return 0;
3006 }
3007
3008 static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3009 u16 len)
3010 {
3011 struct mgmt_cp_unpair_device *cp = data;
3012 struct mgmt_rp_unpair_device rp;
3013 struct hci_conn_params *params;
3014 struct mgmt_pending_cmd *cmd;
3015 struct hci_conn *conn;
3016 u8 addr_type;
3017 int err;
3018
3019 memset(&rp, 0, sizeof(rp));
3020 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3021 rp.addr.type = cp->addr.type;
3022
3023 if (!bdaddr_type_is_valid(cp->addr.type))
3024 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3025 MGMT_STATUS_INVALID_PARAMS,
3026 &rp, sizeof(rp));
3027
3028 if (cp->disconnect != 0x00 && cp->disconnect != 0x01)
3029 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3030 MGMT_STATUS_INVALID_PARAMS,
3031 &rp, sizeof(rp));
3032
3033 hci_dev_lock(hdev);
3034
3035 if (!hdev_is_powered(hdev)) {
3036 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3037 MGMT_STATUS_NOT_POWERED, &rp,
3038 sizeof(rp));
3039 goto unlock;
3040 }
3041
3042 if (cp->addr.type == BDADDR_BREDR) {
3043 /* If disconnection is requested, then look up the
3044 * connection. If the remote device is connected, it
3045 * will be later used to terminate the link.
3046 *
3047 * Setting it to NULL explicitly will cause no
3048 * termination of the link.
3049 */
3050 if (cp->disconnect)
3051 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
3052 &cp->addr.bdaddr);
3053 else
3054 conn = NULL;
3055
3056 err = hci_remove_link_key(hdev, &cp->addr.bdaddr);
3057 if (err < 0) {
3058 err = mgmt_cmd_complete(sk, hdev->id,
3059 MGMT_OP_UNPAIR_DEVICE,
3060 MGMT_STATUS_NOT_PAIRED, &rp,
3061 sizeof(rp));
3062 goto unlock;
3063 }
3064
3065 goto done;
3066 }
3067
3068 /* LE address type */
3069 addr_type = le_addr_type(cp->addr.type);
3070
3071 /* Abort any ongoing SMP pairing. Removes ltk and irk if they exist. */
3072 err = smp_cancel_and_remove_pairing(hdev, &cp->addr.bdaddr, addr_type);
3073 if (err < 0) {
3074 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
3075 MGMT_STATUS_NOT_PAIRED, &rp,
3076 sizeof(rp));
3077 goto unlock;
3078 }
3079
3080 conn = hci_conn_hash_lookup_le(hdev, &cp->addr.bdaddr, addr_type);
3081 if (!conn) {
3082 hci_conn_params_del(hdev, &cp->addr.bdaddr, addr_type);
3083 goto done;
3084 }
3085
3086
3087 /* Defer clearing up the connection parameters until closing to
3088 * give a chance of keeping them if a repairing happens.
3089 */
3090 set_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags);
3091
3092 /* Disable auto-connection parameters if present */
3093 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr, addr_type);
3094 if (params) {
3095 if (params->explicit_connect)
3096 params->auto_connect = HCI_AUTO_CONN_EXPLICIT;
3097 else
3098 params->auto_connect = HCI_AUTO_CONN_DISABLED;
3099 }
3100
3101 /* If disconnection is not requested, then clear the connection
3102 * variable so that the link is not terminated.
3103 */
3104 if (!cp->disconnect)
3105 conn = NULL;
3106
3107 done:
3108 /* If the connection variable is set, then termination of the
3109 * link is requested.
3110 */
3111 if (!conn) {
3112 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 0,
3113 &rp, sizeof(rp));
3114 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);
3115 goto unlock;
3116 }
3117
3118 cmd = mgmt_pending_new(sk, MGMT_OP_UNPAIR_DEVICE, hdev, cp,
3119 sizeof(*cp));
3120 if (!cmd) {
3121 err = -ENOMEM;
3122 goto unlock;
3123 }
3124
3125 cmd->cmd_complete = addr_cmd_complete;
3126
3127 err = hci_cmd_sync_queue(hdev, unpair_device_sync, cmd,
3128 unpair_device_complete);
3129 if (err < 0)
3130 mgmt_pending_free(cmd);
3131
3132 unlock:
3133 hci_dev_unlock(hdev);
3134 return err;
3135 }
3136
3137 static void disconnect_complete(struct hci_dev *hdev, void *data, int err)
3138 {
3139 struct mgmt_pending_cmd *cmd = data;
3140
3141 cmd->cmd_complete(cmd, mgmt_status(err));
3142 mgmt_pending_free(cmd);
3143 }
3144
3145 static int disconnect_sync(struct hci_dev *hdev, void *data)
3146 {
3147 struct mgmt_pending_cmd *cmd = data;
3148 struct mgmt_cp_disconnect *cp = cmd->param;
3149 struct hci_conn *conn;
3150
3151 if (cp->addr.type == BDADDR_BREDR)
3152 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
3153 &cp->addr.bdaddr);
3154 else
3155 conn = hci_conn_hash_lookup_le(hdev, &cp->addr.bdaddr,
3156 le_addr_type(cp->addr.type));
3157
3158 if (!conn)
3159 return -ENOTCONN;
3160
3161 /* Disregard any possible error since the likes of hci_abort_conn_sync
3162 * will clean up the connection no matter the error.
3163 */
3164 hci_abort_conn(conn, HCI_ERROR_REMOTE_USER_TERM);
3165
3166 return 0;
3167 }
3168
3169 static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data,
3170 u16 len)
3171 {
3172 struct mgmt_cp_disconnect *cp = data;
3173 struct mgmt_rp_disconnect rp;
3174 struct mgmt_pending_cmd *cmd;
3175 int err;
3176
3177 bt_dev_dbg(hdev, "sock %p", sk);
3178
3179 memset(&rp, 0, sizeof(rp));
3180 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3181 rp.addr.type = cp->addr.type;
3182
3183 if (!bdaddr_type_is_valid(cp->addr.type))
3184 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3185 MGMT_STATUS_INVALID_PARAMS,
3186 &rp, sizeof(rp));
3187
3188 hci_dev_lock(hdev);
3189
3190 if (!test_bit(HCI_UP, &hdev->flags)) {
3191 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
3192 MGMT_STATUS_NOT_POWERED, &rp,
3193 sizeof(rp));
3194 goto failed;
3195 }
3196
3197 cmd = mgmt_pending_new(sk, MGMT_OP_DISCONNECT, hdev, data, len);
3198 if (!cmd) {
3199 err = -ENOMEM;
3200 goto failed;
3201 }
3202
3203 cmd->cmd_complete = generic_cmd_complete;
3204
3205 err = hci_cmd_sync_queue(hdev, disconnect_sync, cmd,
3206 disconnect_complete);
3207 if (err < 0)
3208 mgmt_pending_free(cmd);
3209
3210 failed:
3211 hci_dev_unlock(hdev);
3212 return err;
3213 }
3214
3215 static u8 link_to_bdaddr(u8 link_type, u8 addr_type)
3216 {
3217 switch (link_type) {
3218 case ISO_LINK:
3219 case LE_LINK:
3220 switch (addr_type) {
3221 case ADDR_LE_DEV_PUBLIC:
3222 return BDADDR_LE_PUBLIC;
3223
3224 default:
3225 /* Fallback to LE Random address type */
3226 return BDADDR_LE_RANDOM;
3227 }
3228
3229 default:
3230 /* Fallback to BR/EDR type */
3231 return BDADDR_BREDR;
3232 }
3233 }
3234
3235 static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
3236 u16 data_len)
3237 {
3238 struct mgmt_rp_get_connections *rp;
3239 struct hci_conn *c;
3240 int err;
3241 u16 i;
3242
3243 bt_dev_dbg(hdev, "sock %p", sk);
3244
3245 hci_dev_lock(hdev);
3246
3247 if (!hdev_is_powered(hdev)) {
3248 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_CONNECTIONS,
3249 MGMT_STATUS_NOT_POWERED);
3250 goto unlock;
3251 }
3252
3253 i = 0;
3254 list_for_each_entry(c, &hdev->conn_hash.list, list) {
3255 if (test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
3256 i++;
3257 }
3258
3259 rp = kmalloc(struct_size(rp, addr, i), GFP_KERNEL);
3260 if (!rp) {
3261 err = -ENOMEM;
3262 goto unlock;
3263 }
3264
3265 i = 0;
3266 list_for_each_entry(c, &hdev->conn_hash.list, list) {
3267 if (!test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
3268 continue;
3269 bacpy(&rp->addr[i].bdaddr, &c->dst);
3270 rp->addr[i].type = link_to_bdaddr(c->type, c->dst_type);
3271 if (c->type == SCO_LINK || c->type == ESCO_LINK)
3272 continue;
3273 i++;
3274 }
3275
3276 rp->conn_count = cpu_to_le16(i);
3277
3278 /* Recalculate length in case of filtered SCO connections, etc */
3279 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp,
3280 struct_size(rp, addr, i));
3281
3282 kfree(rp);
3283
3284 unlock:
3285 hci_dev_unlock(hdev);
3286 return err;
3287 }
3288
3289 static int send_pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3290 struct mgmt_cp_pin_code_neg_reply *cp)
3291 {
3292 struct mgmt_pending_cmd *cmd;
3293 int err;
3294
3295 cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, hdev, cp,
3296 sizeof(*cp));
3297 if (!cmd)
3298 return -ENOMEM;
3299
3300 cmd->cmd_complete = addr_cmd_complete;
3301
3302 err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
3303 sizeof(cp->addr.bdaddr), &cp->addr.bdaddr);
3304 if (err < 0)
3305 mgmt_pending_remove(cmd);
3306
3307 return err;
3308 }
3309
3310 static int pin_code_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3311 u16 len)
3312 {
3313 struct hci_conn *conn;
3314 struct mgmt_cp_pin_code_reply *cp = data;
3315 struct hci_cp_pin_code_reply reply;
3316 struct mgmt_pending_cmd *cmd;
3317 int err;
3318
3319 bt_dev_dbg(hdev, "sock %p", sk);
3320
3321 hci_dev_lock(hdev);
3322
3323 if (!hdev_is_powered(hdev)) {
3324 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3325 MGMT_STATUS_NOT_POWERED);
3326 goto failed;
3327 }
3328
3329 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
3330 if (!conn) {
3331 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3332 MGMT_STATUS_NOT_CONNECTED);
3333 goto failed;
3334 }
3335
3336 if (conn->pending_sec_level == BT_SECURITY_HIGH && cp->pin_len != 16) {
3337 struct mgmt_cp_pin_code_neg_reply ncp;
3338
3339 memcpy(&ncp.addr, &cp->addr, sizeof(ncp.addr));
3340
3341 bt_dev_err(hdev, "PIN code is not 16 bytes long");
3342
3343 err = send_pin_code_neg_reply(sk, hdev, &ncp);
3344 if (err >= 0)
3345 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
3346 MGMT_STATUS_INVALID_PARAMS);
3347
3348 goto failed;
3349 }
3350
3351 cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, hdev, data, len);
3352 if (!cmd) {
3353 err = -ENOMEM;
3354 goto failed;
3355 }
3356
3357 cmd->cmd_complete = addr_cmd_complete;
3358
3359 bacpy(&reply.bdaddr, &cp->addr.bdaddr);
3360 reply.pin_len = cp->pin_len;
3361 memcpy(reply.pin_code, cp->pin_code, sizeof(reply.pin_code));
3362
3363 err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
3364 if (err < 0)
3365 mgmt_pending_remove(cmd);
3366
3367 failed:
3368 hci_dev_unlock(hdev);
3369 return err;
3370 }
3371
3372 static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
3373 u16 len)
3374 {
3375 struct mgmt_cp_set_io_capability *cp = data;
3376
3377 bt_dev_dbg(hdev, "sock %p", sk);
3378
3379 if (cp->io_capability > SMP_IO_KEYBOARD_DISPLAY)
3380 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY,
3381 MGMT_STATUS_INVALID_PARAMS);
3382
3383 hci_dev_lock(hdev);
3384
3385 hdev->io_capability = cp->io_capability;
3386
3387 bt_dev_dbg(hdev, "IO capability set to 0x%02x", hdev->io_capability);
3388
3389 hci_dev_unlock(hdev);
3390
3391 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, 0,
3392 NULL, 0);
3393 }
3394
3395 static struct mgmt_pending_cmd *find_pairing(struct hci_conn *conn)
3396 {
3397 struct hci_dev *hdev = conn->hdev;
3398 struct mgmt_pending_cmd *cmd;
3399
3400 list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
3401 if (cmd->opcode != MGMT_OP_PAIR_DEVICE)
3402 continue;
3403
3404 if (cmd->user_data != conn)
3405 continue;
3406
3407 return cmd;
3408 }
3409
3410 return NULL;
3411 }
3412
3413 static int pairing_complete(struct mgmt_pending_cmd *cmd, u8 status)
3414 {
3415 struct mgmt_rp_pair_device rp;
3416 struct hci_conn *conn = cmd->user_data;
3417 int err;
3418
3419 bacpy(&rp.addr.bdaddr, &conn->dst);
3420 rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
3421
3422 err = mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE,
3423 status, &rp, sizeof(rp));
3424
3425 /* So we don't get further callbacks for this connection */
3426 conn->connect_cfm_cb = NULL;
3427 conn->security_cfm_cb = NULL;
3428 conn->disconn_cfm_cb = NULL;
3429
3430 hci_conn_drop(conn);
3431
3432 /* The device is paired so there is no need to remove
3433 * its connection parameters anymore.
3434 */
3435 clear_bit(HCI_CONN_PARAM_REMOVAL_PEND, &conn->flags);
3436
3437 hci_conn_put(conn);
3438
3439 return err;
3440 }
3441
3442 void mgmt_smp_complete(struct hci_conn *conn, bool complete)
3443 {
3444 u8 status = complete ? MGMT_STATUS_SUCCESS : MGMT_STATUS_FAILED;
3445 struct mgmt_pending_cmd *cmd;
3446
3447 cmd = find_pairing(conn);
3448 if (cmd) {
3449 cmd->cmd_complete(cmd, status);
3450 mgmt_pending_remove(cmd);
3451 }
3452 }
3453
3454 static void pairing_complete_cb(struct hci_conn *conn, u8 status)
3455 {
3456 struct mgmt_pending_cmd *cmd;
3457
3458 BT_DBG("status %u", status);
3459
3460 cmd = find_pairing(conn);
3461 if (!cmd) {
3462 BT_DBG("Unable to find a pending command");
3463 return;
3464 }
3465
3466 cmd->cmd_complete(cmd, mgmt_status(status));
3467 mgmt_pending_remove(cmd);
3468 }
3469
3470 static void le_pairing_complete_cb(struct hci_conn *conn, u8 status)
3471 {
3472 struct mgmt_pending_cmd *cmd;
3473
3474 BT_DBG("status %u", status);
3475
3476 if (!status)
3477 return;
3478
3479 cmd = find_pairing(conn);
3480 if (!cmd) {
3481 BT_DBG("Unable to find a pending command");
3482 return;
3483 }
3484
3485 cmd->cmd_complete(cmd, mgmt_status(status));
3486 mgmt_pending_remove(cmd);
3487 }
3488
3489 static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3490 u16 len)
3491 {
3492 struct mgmt_cp_pair_device *cp = data;
3493 struct mgmt_rp_pair_device rp;
3494 struct mgmt_pending_cmd *cmd;
3495 u8 sec_level, auth_type;
3496 struct hci_conn *conn;
3497 int err;
3498
3499 bt_dev_dbg(hdev, "sock %p", sk);
3500
3501 memset(&rp, 0, sizeof(rp));
3502 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
3503 rp.addr.type = cp->addr.type;
3504
3505 if (!bdaddr_type_is_valid(cp->addr.type))
3506 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3507 MGMT_STATUS_INVALID_PARAMS,
3508 &rp, sizeof(rp));
3509
3510 if (cp->io_cap > SMP_IO_KEYBOARD_DISPLAY)
3511 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3512 MGMT_STATUS_INVALID_PARAMS,
3513 &rp, sizeof(rp));
3514
3515 hci_dev_lock(hdev);
3516
3517 if (!hdev_is_powered(hdev)) {
3518 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3519 MGMT_STATUS_NOT_POWERED, &rp,
3520 sizeof(rp));
3521 goto unlock;
3522 }
3523
3524 if (hci_bdaddr_is_paired(hdev, &cp->addr.bdaddr, cp->addr.type)) {
3525 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3526 MGMT_STATUS_ALREADY_PAIRED, &rp,
3527 sizeof(rp));
3528 goto unlock;
3529 }
3530
3531 sec_level = BT_SECURITY_MEDIUM;
3532 auth_type = HCI_AT_DEDICATED_BONDING;
3533
3534 if (cp->addr.type == BDADDR_BREDR) {
3535 conn = hci_connect_acl(hdev, &cp->addr.bdaddr, sec_level,
3536 auth_type, CONN_REASON_PAIR_DEVICE,
3537 HCI_ACL_CONN_TIMEOUT);
3538 } else {
3539 u8 addr_type = le_addr_type(cp->addr.type);
3540 struct hci_conn_params *p;
3541
3542 /* When pairing a new device, it is expected to remember
3543 * this device for future connections. Adding the connection
3544 * parameter information ahead of time allows tracking
3545 * of the peripheral preferred values and will speed up any
3546 * further connection establishment.
3547 *
3548 * If connection parameters already exist, then they
3549 * will be kept and this function does nothing.
3550 */
3551 p = hci_conn_params_add(hdev, &cp->addr.bdaddr, addr_type);
3552 if (!p) {
3553 err = -EIO;
3554 goto unlock;
3555 }
3556
3557 if (p->auto_connect == HCI_AUTO_CONN_EXPLICIT)
3558 p->auto_connect = HCI_AUTO_CONN_DISABLED;
3559
3560 conn = hci_connect_le_scan(hdev, &cp->addr.bdaddr, addr_type,
3561 sec_level, HCI_LE_CONN_TIMEOUT,
3562 CONN_REASON_PAIR_DEVICE);
3563 }
3564
3565 if (IS_ERR(conn)) {
3566 int status;
3567
3568 if (PTR_ERR(conn) == -EBUSY)
3569 status = MGMT_STATUS_BUSY;
3570 else if (PTR_ERR(conn) == -EOPNOTSUPP)
3571 status = MGMT_STATUS_NOT_SUPPORTED;
3572 else if (PTR_ERR(conn) == -ECONNREFUSED)
3573 status = MGMT_STATUS_REJECTED;
3574 else
3575 status = MGMT_STATUS_CONNECT_FAILED;
3576
3577 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3578 status, &rp, sizeof(rp));
3579 goto unlock;
3580 }
3581
3582 if (conn->connect_cfm_cb) {
3583 hci_conn_drop(conn);
3584 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
3585 MGMT_STATUS_BUSY, &rp, sizeof(rp));
3586 goto unlock;
3587 }
3588
3589 cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len);
3590 if (!cmd) {
3591 err = -ENOMEM;
3592 hci_conn_drop(conn);
3593 goto unlock;
3594 }
3595
3596 cmd->cmd_complete = pairing_complete;
3597
3598 /* For LE, just connecting isn't a proof that the pairing finished */
3599 if (cp->addr.type == BDADDR_BREDR) {
3600 conn->connect_cfm_cb = pairing_complete_cb;
3601 conn->security_cfm_cb = pairing_complete_cb;
3602 conn->disconn_cfm_cb = pairing_complete_cb;
3603 } else {
3604 conn->connect_cfm_cb = le_pairing_complete_cb;
3605 conn->security_cfm_cb = le_pairing_complete_cb;
3606 conn->disconn_cfm_cb = le_pairing_complete_cb;
3607 }
3608
3609 conn->io_capability = cp->io_cap;
3610 cmd->user_data = hci_conn_get(conn);
3611
3612 if ((conn->state == BT_CONNECTED || conn->state == BT_CONFIG) &&
3613 hci_conn_security(conn, sec_level, auth_type, true)) {
3614 cmd->cmd_complete(cmd, 0);
3615 mgmt_pending_remove(cmd);
3616 }
3617
3618 err = 0;
3619
3620 unlock:
3621 hci_dev_unlock(hdev);
3622 return err;
3623 }
3624
3625 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
3626 u16 len)
3627 {
3628 struct mgmt_addr_info *addr = data;
3629 struct mgmt_pending_cmd *cmd;
3630 struct hci_conn *conn;
3631 int err;
3632
3633 bt_dev_dbg(hdev, "sock %p", sk);
3634
3635 hci_dev_lock(hdev);
3636
3637 if (!hdev_is_powered(hdev)) {
3638 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3639 MGMT_STATUS_NOT_POWERED);
3640 goto unlock;
3641 }
3642
3643 cmd = pending_find(MGMT_OP_PAIR_DEVICE, hdev);
3644 if (!cmd) {
3645 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3646 MGMT_STATUS_INVALID_PARAMS);
3647 goto unlock;
3648 }
3649
3650 conn = cmd->user_data;
3651
3652 if (bacmp(&addr->bdaddr, &conn->dst) != 0) {
3653 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
3654 MGMT_STATUS_INVALID_PARAMS);
3655 goto unlock;
3656 }
3657
3658 cmd->cmd_complete(cmd, MGMT_STATUS_CANCELLED);
3659 mgmt_pending_remove(cmd);
3660
3661 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0,
3662 addr, sizeof(*addr));
3663
3664 /* Since user doesn't want to proceed with the connection, abort any
3665 * ongoing pairing and then terminate the link if it was created
3666 * because of the pair device action.
3667 */
3668 if (addr->type == BDADDR_BREDR)
3669 hci_remove_link_key(hdev, &addr->bdaddr);
3670 else
3671 smp_cancel_and_remove_pairing(hdev, &addr->bdaddr,
3672 le_addr_type(addr->type));
3673
3674 if (conn->conn_reason == CONN_REASON_PAIR_DEVICE)
3675 hci_abort_conn(conn, HCI_ERROR_REMOTE_USER_TERM);
3676
3677 unlock:
3678 hci_dev_unlock(hdev);
3679 return err;
3680 }
3681
3682 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
3683 struct mgmt_addr_info *addr, u16 mgmt_op,
3684 u16 hci_op, __le32 passkey)
3685 {
3686 struct mgmt_pending_cmd *cmd;
3687 struct hci_conn *conn;
3688 int err;
3689
3690 hci_dev_lock(hdev);
3691
3692 if (!hdev_is_powered(hdev)) {
3693 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3694 MGMT_STATUS_NOT_POWERED, addr,
3695 sizeof(*addr));
3696 goto done;
3697 }
3698
3699 if (addr->type == BDADDR_BREDR)
3700 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &addr->bdaddr);
3701 else
3702 conn = hci_conn_hash_lookup_le(hdev, &addr->bdaddr,
3703 le_addr_type(addr->type));
3704
3705 if (!conn) {
3706 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3707 MGMT_STATUS_NOT_CONNECTED, addr,
3708 sizeof(*addr));
3709 goto done;
3710 }
3711
3712 if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
3713 err = smp_user_confirm_reply(conn, mgmt_op, passkey);
3714 if (!err)
3715 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3716 MGMT_STATUS_SUCCESS, addr,
3717 sizeof(*addr));
3718 else
3719 err = mgmt_cmd_complete(sk, hdev->id, mgmt_op,
3720 MGMT_STATUS_FAILED, addr,
3721 sizeof(*addr));
3722
3723 goto done;
3724 }
3725
3726 cmd = mgmt_pending_add(sk, mgmt_op, hdev, addr, sizeof(*addr));
3727 if (!cmd) {
3728 err = -ENOMEM;
3729 goto done;
3730 }
3731
3732 cmd->cmd_complete = addr_cmd_complete;
3733
3734 /* Continue with pairing via HCI */
3735 if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
3736 struct hci_cp_user_passkey_reply cp;
3737
3738 bacpy(&cp.bdaddr, &addr->bdaddr);
3739 cp.passkey = passkey;
3740 err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
3741 } else
3742 err = hci_send_cmd(hdev, hci_op, sizeof(addr->bdaddr),
3743 &addr->bdaddr);
3744
3745 if (err < 0)
3746 mgmt_pending_remove(cmd);
3747
3748 done:
3749 hci_dev_unlock(hdev);
3750 return err;
3751 }
3752
3753 static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
3754 void *data, u16 len)
3755 {
3756 struct mgmt_cp_pin_code_neg_reply *cp = data;
3757
3758 bt_dev_dbg(hdev, "sock %p", sk);
3759
3760 return user_pairing_resp(sk, hdev, &cp->addr,
3761 MGMT_OP_PIN_CODE_NEG_REPLY,
3762 HCI_OP_PIN_CODE_NEG_REPLY, 0);
3763 }
3764
3765 static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3766 u16 len)
3767 {
3768 struct mgmt_cp_user_confirm_reply *cp = data;
3769
3770 bt_dev_dbg(hdev, "sock %p", sk);
3771
3772 if (len != sizeof(*cp))
3773 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
3774 MGMT_STATUS_INVALID_PARAMS);
3775
3776 return user_pairing_resp(sk, hdev, &cp->addr,
3777 MGMT_OP_USER_CONFIRM_REPLY,
3778 HCI_OP_USER_CONFIRM_REPLY, 0);
3779 }
3780
3781 static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
3782 void *data, u16 len)
3783 {
3784 struct mgmt_cp_user_confirm_neg_reply *cp = data;
3785
3786 bt_dev_dbg(hdev, "sock %p", sk);
3787
3788 return user_pairing_resp(sk, hdev, &cp->addr,
3789 MGMT_OP_USER_CONFIRM_NEG_REPLY,
3790 HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
3791 }
3792
3793 static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
3794 u16 len)
3795 {
3796 struct mgmt_cp_user_passkey_reply *cp = data;
3797
3798 bt_dev_dbg(hdev, "sock %p", sk);
3799
3800 return user_pairing_resp(sk, hdev, &cp->addr,
3801 MGMT_OP_USER_PASSKEY_REPLY,
3802 HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
3803 }
3804
3805 static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
3806 void *data, u16 len)
3807 {
3808 struct mgmt_cp_user_passkey_neg_reply *cp = data;
3809
3810 bt_dev_dbg(hdev, "sock %p", sk);
3811
3812 return user_pairing_resp(sk, hdev, &cp->addr,
3813 MGMT_OP_USER_PASSKEY_NEG_REPLY,
3814 HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
3815 }
3816
3817 static int adv_expire_sync(struct hci_dev *hdev, u32 flags)
3818 {
3819 struct adv_info *adv_instance;
3820
3821 adv_instance = hci_find_adv_instance(hdev, hdev->cur_adv_instance);
3822 if (!adv_instance)
3823 return 0;
3824
3825 /* stop if current instance doesn't need to be changed */
3826 if (!(adv_instance->flags & flags))
3827 return 0;
3828
3829 cancel_adv_timeout(hdev);
3830
3831 adv_instance = hci_get_next_instance(hdev, adv_instance->instance);
3832 if (!adv_instance)
3833 return 0;
3834
3835 hci_schedule_adv_instance_sync(hdev, adv_instance->instance, true);
3836
3837 return 0;
3838 }
3839
3840 static int name_changed_sync(struct hci_dev *hdev, void *data)
3841 {
3842 return adv_expire_sync(hdev, MGMT_ADV_FLAG_LOCAL_NAME);
3843 }
3844
3845 static void set_name_complete(struct hci_dev *hdev, void *data, int err)
3846 {
3847 struct mgmt_pending_cmd *cmd = data;
3848 struct mgmt_cp_set_local_name *cp = cmd->param;
3849 u8 status = mgmt_status(err);
3850
3851 bt_dev_dbg(hdev, "err %d", err);
3852
3853 if (err == -ECANCELED ||
3854 cmd != pending_find(MGMT_OP_SET_LOCAL_NAME, hdev))
3855 return;
3856
3857 if (status) {
3858 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
3859 status);
3860 } else {
3861 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3862 cp, sizeof(*cp));
3863
3864 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
3865 hci_cmd_sync_queue(hdev, name_changed_sync, NULL, NULL);
3866 }
3867
3868 mgmt_pending_remove(cmd);
3869 }
3870
3871 static int set_name_sync(struct hci_dev *hdev, void *data)
3872 {
3873 if (lmp_bredr_capable(hdev)) {
3874 hci_update_name_sync(hdev);
3875 hci_update_eir_sync(hdev);
3876 }
3877
3878 /* The name is stored in the scan response data and so
3879 * no need to update the advertising data here.
3880 */
3881 if (lmp_le_capable(hdev) && hci_dev_test_flag(hdev, HCI_ADVERTISING))
3882 hci_update_scan_rsp_data_sync(hdev, hdev->cur_adv_instance);
3883
3884 return 0;
3885 }
3886
3887 static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
3888 u16 len)
3889 {
3890 struct mgmt_cp_set_local_name *cp = data;
3891 struct mgmt_pending_cmd *cmd;
3892 int err;
3893
3894 bt_dev_dbg(hdev, "sock %p", sk);
3895
3896 hci_dev_lock(hdev);
3897
3898 /* If the old values are the same as the new ones just return a
3899 * direct command complete event.
3900 */
3901 if (!memcmp(hdev->dev_name, cp->name, sizeof(hdev->dev_name)) &&
3902 !memcmp(hdev->short_name, cp->short_name,
3903 sizeof(hdev->short_name))) {
3904 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3905 data, len);
3906 goto failed;
3907 }
3908
3909 memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
3910
3911 if (!hdev_is_powered(hdev)) {
3912 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3913
3914 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
3915 data, len);
3916 if (err < 0)
3917 goto failed;
3918
3919 err = mgmt_limited_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, data,
3920 len, HCI_MGMT_LOCAL_NAME_EVENTS, sk);
3921 ext_info_changed(hdev, sk);
3922
3923 goto failed;
3924 }
3925
3926 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len);
3927 if (!cmd)
3928 err = -ENOMEM;
3929 else
3930 err = hci_cmd_sync_queue(hdev, set_name_sync, cmd,
3931 set_name_complete);
3932
3933 if (err < 0) {
3934 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
3935 MGMT_STATUS_FAILED);
3936
3937 if (cmd)
3938 mgmt_pending_remove(cmd);
3939
3940 goto failed;
3941 }
3942
3943 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
3944
3945 failed:
3946 hci_dev_unlock(hdev);
3947 return err;
3948 }
3949
3950 static int appearance_changed_sync(struct hci_dev *hdev, void *data)
3951 {
3952 return adv_expire_sync(hdev, MGMT_ADV_FLAG_APPEARANCE);
3953 }
3954
3955 static int set_appearance(struct sock *sk, struct hci_dev *hdev, void *data,
3956 u16 len)
3957 {
3958 struct mgmt_cp_set_appearance *cp = data;
3959 u16 appearance;
3960 int err;
3961
3962 bt_dev_dbg(hdev, "sock %p", sk);
3963
3964 if (!lmp_le_capable(hdev))
3965 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_APPEARANCE,
3966 MGMT_STATUS_NOT_SUPPORTED);
3967
3968 appearance = le16_to_cpu(cp->appearance);
3969
3970 hci_dev_lock(hdev);
3971
3972 if (hdev->appearance != appearance) {
3973 hdev->appearance = appearance;
3974
3975 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
3976 hci_cmd_sync_queue(hdev, appearance_changed_sync, NULL,
3977 NULL);
3978
3979 ext_info_changed(hdev, sk);
3980 }
3981
3982 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_APPEARANCE, 0, NULL,
3983 0);
3984
3985 hci_dev_unlock(hdev);
3986
3987 return err;
3988 }
3989
3990 static int get_phy_configuration(struct sock *sk, struct hci_dev *hdev,
3991 void *data, u16 len)
3992 {
3993 struct mgmt_rp_get_phy_configuration rp;
3994
3995 bt_dev_dbg(hdev, "sock %p", sk);
3996
3997 hci_dev_lock(hdev);
3998
3999 memset(&rp, 0, sizeof(rp));
4000
4001 rp.supported_phys = cpu_to_le32(get_supported_phys(hdev));
4002 rp.selected_phys = cpu_to_le32(get_selected_phys(hdev));
4003 rp.configurable_phys = cpu_to_le32(get_configurable_phys(hdev));
4004
4005 hci_dev_unlock(hdev);
4006
4007 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_PHY_CONFIGURATION, 0,
4008 &rp, sizeof(rp));
4009 }
4010
4011 int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip)
4012 {
4013 struct mgmt_ev_phy_configuration_changed ev;
4014
4015 memset(&ev, 0, sizeof(ev));
4016
4017 ev.selected_phys = cpu_to_le32(get_selected_phys(hdev));
4018
4019 return mgmt_event(MGMT_EV_PHY_CONFIGURATION_CHANGED, hdev, &ev,
4020 sizeof(ev), skip);
4021 }
4022
4023 static void set_default_phy_complete(struct hci_dev *hdev, void *data, int err)
4024 {
4025 struct mgmt_pending_cmd *cmd = data;
4026 struct sk_buff *skb = cmd->skb;
4027 u8 status = mgmt_status(err);
4028
4029 if (err == -ECANCELED ||
4030 cmd != pending_find(MGMT_OP_SET_PHY_CONFIGURATION, hdev))
4031 return;
4032
4033 if (!status) {
4034 if (!skb)
4035 status = MGMT_STATUS_FAILED;
4036 else if (IS_ERR(skb))
4037 status = mgmt_status(PTR_ERR(skb));
4038 else
4039 status = mgmt_status(skb->data[0]);
4040 }
4041
4042 bt_dev_dbg(hdev, "status %d", status);
4043
4044 if (status) {
4045 mgmt_cmd_status(cmd->sk, hdev->id,
4046 MGMT_OP_SET_PHY_CONFIGURATION, status);
4047 } else {
4048 mgmt_cmd_complete(cmd->sk, hdev->id,
4049 MGMT_OP_SET_PHY_CONFIGURATION, 0,
4050 NULL, 0);
4051
4052 mgmt_phy_configuration_changed(hdev, cmd->sk);
4053 }
4054
4055 if (skb && !IS_ERR(skb))
4056 kfree_skb(skb);
4057
4058 mgmt_pending_remove(cmd);
4059 }
4060
4061 static int set_default_phy_sync(struct hci_dev *hdev, void *data)
4062 {
4063 struct mgmt_pending_cmd *cmd = data;
4064 struct mgmt_cp_set_phy_configuration *cp = cmd->param;
4065 struct hci_cp_le_set_default_phy cp_phy;
4066 u32 selected_phys = __le32_to_cpu(cp->selected_phys);
4067
4068 memset(&cp_phy, 0, sizeof(cp_phy));
4069
4070 if (!(selected_phys & MGMT_PHY_LE_TX_MASK))
4071 cp_phy.all_phys |= 0x01;
4072
4073 if (!(selected_phys & MGMT_PHY_LE_RX_MASK))
4074 cp_phy.all_phys |= 0x02;
4075
4076 if (selected_phys & MGMT_PHY_LE_1M_TX)
4077 cp_phy.tx_phys |= HCI_LE_SET_PHY_1M;
4078
4079 if (selected_phys & MGMT_PHY_LE_2M_TX)
4080 cp_phy.tx_phys |= HCI_LE_SET_PHY_2M;
4081
4082 if (selected_phys & MGMT_PHY_LE_CODED_TX)
4083 cp_phy.tx_phys |= HCI_LE_SET_PHY_CODED;
4084
4085 if (selected_phys & MGMT_PHY_LE_1M_RX)
4086 cp_phy.rx_phys |= HCI_LE_SET_PHY_1M;
4087
4088 if (selected_phys & MGMT_PHY_LE_2M_RX)
4089 cp_phy.rx_phys |= HCI_LE_SET_PHY_2M;
4090
4091 if (selected_phys & MGMT_PHY_LE_CODED_RX)
4092 cp_phy.rx_phys |= HCI_LE_SET_PHY_CODED;
4093
4094 cmd->skb = __hci_cmd_sync(hdev, HCI_OP_LE_SET_DEFAULT_PHY,
4095 sizeof(cp_phy), &cp_phy, HCI_CMD_TIMEOUT);
4096
4097 return 0;
4098 }
4099
4100 static int set_phy_configuration(struct sock *sk, struct hci_dev *hdev,
4101 void *data, u16 len)
4102 {
4103 struct mgmt_cp_set_phy_configuration *cp = data;
4104 struct mgmt_pending_cmd *cmd;
4105 u32 selected_phys, configurable_phys, supported_phys, unconfigure_phys;
4106 u16 pkt_type = (HCI_DH1 | HCI_DM1);
4107 bool changed = false;
4108 int err;
4109
4110 bt_dev_dbg(hdev, "sock %p", sk);
4111
4112 configurable_phys = get_configurable_phys(hdev);
4113 supported_phys = get_supported_phys(hdev);
4114 selected_phys = __le32_to_cpu(cp->selected_phys);
4115
4116 if (selected_phys & ~supported_phys)
4117 return mgmt_cmd_status(sk, hdev->id,
4118 MGMT_OP_SET_PHY_CONFIGURATION,
4119 MGMT_STATUS_INVALID_PARAMS);
4120
4121 unconfigure_phys = supported_phys & ~configurable_phys;
4122
4123 if ((selected_phys & unconfigure_phys) != unconfigure_phys)
4124 return mgmt_cmd_status(sk, hdev->id,
4125 MGMT_OP_SET_PHY_CONFIGURATION,
4126 MGMT_STATUS_INVALID_PARAMS);
4127
4128 if (selected_phys == get_selected_phys(hdev))
4129 return mgmt_cmd_complete(sk, hdev->id,
4130 MGMT_OP_SET_PHY_CONFIGURATION,
4131 0, NULL, 0);
4132
4133 hci_dev_lock(hdev);
4134
4135 if (!hdev_is_powered(hdev)) {
4136 err = mgmt_cmd_status(sk, hdev->id,
4137 MGMT_OP_SET_PHY_CONFIGURATION,
4138 MGMT_STATUS_REJECTED);
4139 goto unlock;
4140 }
4141
4142 if (pending_find(MGMT_OP_SET_PHY_CONFIGURATION, hdev)) {
4143 err = mgmt_cmd_status(sk, hdev->id,
4144 MGMT_OP_SET_PHY_CONFIGURATION,
4145 MGMT_STATUS_BUSY);
4146 goto unlock;
4147 }
4148
4149 if (selected_phys & MGMT_PHY_BR_1M_3SLOT)
4150 pkt_type |= (HCI_DH3 | HCI_DM3);
4151 else
4152 pkt_type &= ~(HCI_DH3 | HCI_DM3);
4153
4154 if (selected_phys & MGMT_PHY_BR_1M_5SLOT)
4155 pkt_type |= (HCI_DH5 | HCI_DM5);
4156 else
4157 pkt_type &= ~(HCI_DH5 | HCI_DM5);
4158
4159 if (selected_phys & MGMT_PHY_EDR_2M_1SLOT)
4160 pkt_type &= ~HCI_2DH1;
4161 else
4162 pkt_type |= HCI_2DH1;
4163
4164 if (selected_phys & MGMT_PHY_EDR_2M_3SLOT)
4165 pkt_type &= ~HCI_2DH3;
4166 else
4167 pkt_type |= HCI_2DH3;
4168
4169 if (selected_phys & MGMT_PHY_EDR_2M_5SLOT)
4170 pkt_type &= ~HCI_2DH5;
4171 else
4172 pkt_type |= HCI_2DH5;
4173
4174 if (selected_phys & MGMT_PHY_EDR_3M_1SLOT)
4175 pkt_type &= ~HCI_3DH1;
4176 else
4177 pkt_type |= HCI_3DH1;
4178
4179 if (selected_phys & MGMT_PHY_EDR_3M_3SLOT)
4180 pkt_type &= ~HCI_3DH3;
4181 else
4182 pkt_type |= HCI_3DH3;
4183
4184 if (selected_phys & MGMT_PHY_EDR_3M_5SLOT)
4185 pkt_type &= ~HCI_3DH5;
4186 else
4187 pkt_type |= HCI_3DH5;
4188
4189 if (pkt_type != hdev->pkt_type) {
4190 hdev->pkt_type = pkt_type;
4191 changed = true;
4192 }
4193
4194 if ((selected_phys & MGMT_PHY_LE_MASK) ==
4195 (get_selected_phys(hdev) & MGMT_PHY_LE_MASK)) {
4196 if (changed)
4197 mgmt_phy_configuration_changed(hdev, sk);
4198
4199 err = mgmt_cmd_complete(sk, hdev->id,
4200 MGMT_OP_SET_PHY_CONFIGURATION,
4201 0, NULL, 0);
4202
4203 goto unlock;
4204 }
4205
4206 cmd = mgmt_pending_add(sk, MGMT_OP_SET_PHY_CONFIGURATION, hdev, data,
4207 len);
4208 if (!cmd)
4209 err = -ENOMEM;
4210 else
4211 err = hci_cmd_sync_queue(hdev, set_default_phy_sync, cmd,
4212 set_default_phy_complete);
4213
4214 if (err < 0) {
4215 err = mgmt_cmd_status(sk, hdev->id,
4216 MGMT_OP_SET_PHY_CONFIGURATION,
4217 MGMT_STATUS_FAILED);
4218
4219 if (cmd)
4220 mgmt_pending_remove(cmd);
4221 }
4222
4223 unlock:
4224 hci_dev_unlock(hdev);
4225
4226 return err;
4227 }
4228
4229 static int set_blocked_keys(struct sock *sk, struct hci_dev *hdev, void *data,
4230 u16 len)
4231 {
4232 int err = MGMT_STATUS_SUCCESS;
4233 struct mgmt_cp_set_blocked_keys *keys = data;
4234 const u16 max_key_count = ((U16_MAX - sizeof(*keys)) /
4235 sizeof(struct mgmt_blocked_key_info));
4236 u16 key_count, expected_len;
4237 int i;
4238
4239 bt_dev_dbg(hdev, "sock %p", sk);
4240
4241 key_count = __le16_to_cpu(keys->key_count);
4242 if (key_count > max_key_count) {
4243 bt_dev_err(hdev, "too big key_count value %u", key_count);
4244 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BLOCKED_KEYS,
4245 MGMT_STATUS_INVALID_PARAMS);
4246 }
4247
4248 expected_len = struct_size(keys, keys, key_count);
4249 if (expected_len != len) {
4250 bt_dev_err(hdev, "expected %u bytes, got %u bytes",
4251 expected_len, len);
4252 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BLOCKED_KEYS,
4253 MGMT_STATUS_INVALID_PARAMS);
4254 }
4255
4256 hci_dev_lock(hdev);
4257
4258 hci_blocked_keys_clear(hdev);
4259
4260 for (i = 0; i < key_count; ++i) {
4261 struct blocked_key *b = kzalloc(sizeof(*b), GFP_KERNEL);
4262
4263 if (!b) {
4264 err = MGMT_STATUS_NO_RESOURCES;
4265 break;
4266 }
4267
4268 b->type = keys->keys[i].type;
4269 memcpy(b->val, keys->keys[i].val, sizeof(b->val));
4270 list_add_rcu(&b->list, &hdev->blocked_keys);
4271 }
4272 hci_dev_unlock(hdev);
4273
4274 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_BLOCKED_KEYS,
4275 err, NULL, 0);
4276 }
4277
4278 static int set_wideband_speech(struct sock *sk, struct hci_dev *hdev,
4279 void *data, u16 len)
4280 {
4281 struct mgmt_mode *cp = data;
4282 int err;
4283 bool changed = false;
4284
4285 bt_dev_dbg(hdev, "sock %p", sk);
4286
4287 if (!test_bit(HCI_QUIRK_WIDEBAND_SPEECH_SUPPORTED, &hdev->quirks))
4288 return mgmt_cmd_status(sk, hdev->id,
4289 MGMT_OP_SET_WIDEBAND_SPEECH,
4290 MGMT_STATUS_NOT_SUPPORTED);
4291
4292 if (cp->val != 0x00 && cp->val != 0x01)
4293 return mgmt_cmd_status(sk, hdev->id,
4294 MGMT_OP_SET_WIDEBAND_SPEECH,
4295 MGMT_STATUS_INVALID_PARAMS);
4296
4297 hci_dev_lock(hdev);
4298
4299 if (hdev_is_powered(hdev) &&
4300 !!cp->val != hci_dev_test_flag(hdev,
4301 HCI_WIDEBAND_SPEECH_ENABLED)) {
4302 err = mgmt_cmd_status(sk, hdev->id,
4303 MGMT_OP_SET_WIDEBAND_SPEECH,
4304 MGMT_STATUS_REJECTED);
4305 goto unlock;
4306 }
4307
4308 if (cp->val)
4309 changed = !hci_dev_test_and_set_flag(hdev,
4310 HCI_WIDEBAND_SPEECH_ENABLED);
4311 else
4312 changed = hci_dev_test_and_clear_flag(hdev,
4313 HCI_WIDEBAND_SPEECH_ENABLED);
4314
4315 err = send_settings_rsp(sk, MGMT_OP_SET_WIDEBAND_SPEECH, hdev);
4316 if (err < 0)
4317 goto unlock;
4318
4319 if (changed)
4320 err = new_settings(hdev, sk);
4321
4322 unlock:
4323 hci_dev_unlock(hdev);
4324 return err;
4325 }
4326
4327 static int read_controller_cap(struct sock *sk, struct hci_dev *hdev,
4328 void *data, u16 data_len)
4329 {
4330 char buf[20];
4331 struct mgmt_rp_read_controller_cap *rp = (void *)buf;
4332 u16 cap_len = 0;
4333 u8 flags = 0;
4334 u8 tx_power_range[2];
4335
4336 bt_dev_dbg(hdev, "sock %p", sk);
4337
4338 memset(&buf, 0, sizeof(buf));
4339
4340 hci_dev_lock(hdev);
4341
4342 /* When the Read Simple Pairing Options command is supported, then
4343 * the remote public key validation is supported.
4344 *
4345 * Alternatively, when Microsoft extensions are available, they can
4346 * indicate support for public key validation as well.
4347 */
4348 if ((hdev->commands[41] & 0x08) || msft_curve_validity(hdev))
4349 flags |= 0x01; /* Remote public key validation (BR/EDR) */
4350
4351 flags |= 0x02; /* Remote public key validation (LE) */
4352
4353 /* When the Read Encryption Key Size command is supported, then the
4354 * encryption key size is enforced.
4355 */
4356 if (hdev->commands[20] & 0x10)
4357 flags |= 0x04; /* Encryption key size enforcement (BR/EDR) */
4358
4359 flags |= 0x08; /* Encryption key size enforcement (LE) */
4360
4361 cap_len = eir_append_data(rp->cap, cap_len, MGMT_CAP_SEC_FLAGS,
4362 &flags, 1);
4363
4364 /* When the Read Simple Pairing Options command is supported, then
4365 * also max encryption key size information is provided.
4366 */
4367 if (hdev->commands[41] & 0x08)
4368 cap_len = eir_append_le16(rp->cap, cap_len,
4369 MGMT_CAP_MAX_ENC_KEY_SIZE,
4370 hdev->max_enc_key_size);
4371
4372 cap_len = eir_append_le16(rp->cap, cap_len,
4373 MGMT_CAP_SMP_MAX_ENC_KEY_SIZE,
4374 SMP_MAX_ENC_KEY_SIZE);
4375
4376 /* Append the min/max LE tx power parameters if we were able to fetch
4377 * it from the controller
4378 */
4379 if (hdev->commands[38] & 0x80) {
4380 memcpy(&tx_power_range[0], &hdev->min_le_tx_power, 1);
4381 memcpy(&tx_power_range[1], &hdev->max_le_tx_power, 1);
4382 cap_len = eir_append_data(rp->cap, cap_len, MGMT_CAP_LE_TX_PWR,
4383 tx_power_range, 2);
4384 }
4385
4386 rp->cap_len = cpu_to_le16(cap_len);
4387
4388 hci_dev_unlock(hdev);
4389
4390 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_CONTROLLER_CAP, 0,
4391 rp, sizeof(*rp) + cap_len);
4392 }
4393
4394 #ifdef CONFIG_BT_FEATURE_DEBUG
4395 /* d4992530-b9ec-469f-ab01-6c481c47da1c */
4396 static const u8 debug_uuid[16] = {
4397 0x1c, 0xda, 0x47, 0x1c, 0x48, 0x6c, 0x01, 0xab,
4398 0x9f, 0x46, 0xec, 0xb9, 0x30, 0x25, 0x99, 0xd4,
4399 };
4400 #endif
4401
4402 /* 330859bc-7506-492d-9370-9a6f0614037f */
4403 static const u8 quality_report_uuid[16] = {
4404 0x7f, 0x03, 0x14, 0x06, 0x6f, 0x9a, 0x70, 0x93,
4405 0x2d, 0x49, 0x06, 0x75, 0xbc, 0x59, 0x08, 0x33,
4406 };
4407
4408 /* a6695ace-ee7f-4fb9-881a-5fac66c629af */
4409 static const u8 offload_codecs_uuid[16] = {
4410 0xaf, 0x29, 0xc6, 0x66, 0xac, 0x5f, 0x1a, 0x88,
4411 0xb9, 0x4f, 0x7f, 0xee, 0xce, 0x5a, 0x69, 0xa6,
4412 };
4413
4414 /* 671b10b5-42c0-4696-9227-eb28d1b049d6 */
4415 static const u8 le_simultaneous_roles_uuid[16] = {
4416 0xd6, 0x49, 0xb0, 0xd1, 0x28, 0xeb, 0x27, 0x92,
4417 0x96, 0x46, 0xc0, 0x42, 0xb5, 0x10, 0x1b, 0x67,
4418 };
4419
4420 /* 15c0a148-c273-11ea-b3de-0242ac130004 */
4421 static const u8 rpa_resolution_uuid[16] = {
4422 0x04, 0x00, 0x13, 0xac, 0x42, 0x02, 0xde, 0xb3,
4423 0xea, 0x11, 0x73, 0xc2, 0x48, 0xa1, 0xc0, 0x15,
4424 };
4425
4426 /* 6fbaf188-05e0-496a-9885-d6ddfdb4e03e */
4427 static const u8 iso_socket_uuid[16] = {
4428 0x3e, 0xe0, 0xb4, 0xfd, 0xdd, 0xd6, 0x85, 0x98,
4429 0x6a, 0x49, 0xe0, 0x05, 0x88, 0xf1, 0xba, 0x6f,
4430 };
4431
4432 /* 2ce463d7-7a03-4d8d-bf05-5f24e8f36e76 */
4433 static const u8 mgmt_mesh_uuid[16] = {
4434 0x76, 0x6e, 0xf3, 0xe8, 0x24, 0x5f, 0x05, 0xbf,
4435 0x8d, 0x4d, 0x03, 0x7a, 0xd7, 0x63, 0xe4, 0x2c,
4436 };
4437
4438 static int read_exp_features_info(struct sock *sk, struct hci_dev *hdev,
4439 void *data, u16 data_len)
4440 {
4441 struct mgmt_rp_read_exp_features_info *rp;
4442 size_t len;
4443 u16 idx = 0;
4444 u32 flags;
4445 int status;
4446
4447 bt_dev_dbg(hdev, "sock %p", sk);
4448
4449 /* Enough space for 7 features */
4450 len = sizeof(*rp) + (sizeof(rp->features[0]) * 7);
4451 rp = kzalloc(len, GFP_KERNEL);
4452 if (!rp)
4453 return -ENOMEM;
4454
4455 #ifdef CONFIG_BT_FEATURE_DEBUG
4456 if (!hdev) {
4457 flags = bt_dbg_get() ? BIT(0) : 0;
4458
4459 memcpy(rp->features[idx].uuid, debug_uuid, 16);
4460 rp->features[idx].flags = cpu_to_le32(flags);
4461 idx++;
4462 }
4463 #endif
4464
4465 if (hdev && hci_dev_le_state_simultaneous(hdev)) {
4466 if (hci_dev_test_flag(hdev, HCI_LE_SIMULTANEOUS_ROLES))
4467 flags = BIT(0);
4468 else
4469 flags = 0;
4470
4471 memcpy(rp->features[idx].uuid, le_simultaneous_roles_uuid, 16);
4472 rp->features[idx].flags = cpu_to_le32(flags);
4473 idx++;
4474 }
4475
4476 if (hdev && ll_privacy_capable(hdev)) {
4477 if (hci_dev_test_flag(hdev, HCI_ENABLE_LL_PRIVACY))
4478 flags = BIT(0) | BIT(1);
4479 else
4480 flags = BIT(1);
4481
4482 memcpy(rp->features[idx].uuid, rpa_resolution_uuid, 16);
4483 rp->features[idx].flags = cpu_to_le32(flags);
4484 idx++;
4485 }
4486
4487 if (hdev && (aosp_has_quality_report(hdev) ||
4488 hdev->set_quality_report)) {
4489 if (hci_dev_test_flag(hdev, HCI_QUALITY_REPORT))
4490 flags = BIT(0);
4491 else
4492 flags = 0;
4493
4494 memcpy(rp->features[idx].uuid, quality_report_uuid, 16);
4495 rp->features[idx].flags = cpu_to_le32(flags);
4496 idx++;
4497 }
4498
4499 if (hdev && hdev->get_data_path_id) {
4500 if (hci_dev_test_flag(hdev, HCI_OFFLOAD_CODECS_ENABLED))
4501 flags = BIT(0);
4502 else
4503 flags = 0;
4504
4505 memcpy(rp->features[idx].uuid, offload_codecs_uuid, 16);
4506 rp->features[idx].flags = cpu_to_le32(flags);
4507 idx++;
4508 }
4509
4510 if (IS_ENABLED(CONFIG_BT_LE)) {
4511 flags = iso_enabled() ? BIT(0) : 0;
4512 memcpy(rp->features[idx].uuid, iso_socket_uuid, 16);
4513 rp->features[idx].flags = cpu_to_le32(flags);
4514 idx++;
4515 }
4516
4517 if (hdev && lmp_le_capable(hdev)) {
4518 if (hci_dev_test_flag(hdev, HCI_MESH_EXPERIMENTAL))
4519 flags = BIT(0);
4520 else
4521 flags = 0;
4522
4523 memcpy(rp->features[idx].uuid, mgmt_mesh_uuid, 16);
4524 rp->features[idx].flags = cpu_to_le32(flags);
4525 idx++;
4526 }
4527
4528 rp->feature_count = cpu_to_le16(idx);
4529
4530 /* After reading the experimental features information, enable
4531 * the events to update client on any future change.
4532 */
4533 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
4534
4535 status = mgmt_cmd_complete(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
4536 MGMT_OP_READ_EXP_FEATURES_INFO,
4537 0, rp, sizeof(*rp) + (20 * idx));
4538
4539 kfree(rp);
4540 return status;
4541 }
4542
4543 static int exp_ll_privacy_feature_changed(bool enabled, struct hci_dev *hdev,
4544 struct sock *skip)
4545 {
4546 struct mgmt_ev_exp_feature_changed ev;
4547
4548 memset(&ev, 0, sizeof(ev));
4549 memcpy(ev.uuid, rpa_resolution_uuid, 16);
4550 ev.flags = cpu_to_le32((enabled ? BIT(0) : 0) | BIT(1));
4551
4552 // Do we need to be atomic with the conn_flags?
4553 if (enabled && privacy_mode_capable(hdev))
4554 hdev->conn_flags |= HCI_CONN_FLAG_DEVICE_PRIVACY;
4555 else
4556 hdev->conn_flags &= ~HCI_CONN_FLAG_DEVICE_PRIVACY;
4557
4558 return mgmt_limited_event(MGMT_EV_EXP_FEATURE_CHANGED, hdev,
4559 &ev, sizeof(ev),
4560 HCI_MGMT_EXP_FEATURE_EVENTS, skip);
4561
4562 }
4563
4564 static int exp_feature_changed(struct hci_dev *hdev, const u8 *uuid,
4565 bool enabled, struct sock *skip)
4566 {
4567 struct mgmt_ev_exp_feature_changed ev;
4568
4569 memset(&ev, 0, sizeof(ev));
4570 memcpy(ev.uuid, uuid, 16);
4571 ev.flags = cpu_to_le32(enabled ? BIT(0) : 0);
4572
4573 return mgmt_limited_event(MGMT_EV_EXP_FEATURE_CHANGED, hdev,
4574 &ev, sizeof(ev),
4575 HCI_MGMT_EXP_FEATURE_EVENTS, skip);
4576 }
4577
4578 #define EXP_FEAT(_uuid, _set_func) \
4579 { \
4580 .uuid = _uuid, \
4581 .set_func = _set_func, \
4582 }
4583
4584 /* The zero key uuid is special. Multiple exp features are set through it. */
4585 static int set_zero_key_func(struct sock *sk, struct hci_dev *hdev,
4586 struct mgmt_cp_set_exp_feature *cp, u16 data_len)
4587 {
4588 struct mgmt_rp_set_exp_feature rp;
4589
4590 memset(rp.uuid, 0, 16);
4591 rp.flags = cpu_to_le32(0);
4592
4593 #ifdef CONFIG_BT_FEATURE_DEBUG
4594 if (!hdev) {
4595 bool changed = bt_dbg_get();
4596
4597 bt_dbg_set(false);
4598
4599 if (changed)
4600 exp_feature_changed(NULL, ZERO_KEY, false, sk);
4601 }
4602 #endif
4603
4604 if (hdev && use_ll_privacy(hdev) && !hdev_is_powered(hdev)) {
4605 bool changed;
4606
4607 changed = hci_dev_test_and_clear_flag(hdev,
4608 HCI_ENABLE_LL_PRIVACY);
4609 if (changed)
4610 exp_feature_changed(hdev, rpa_resolution_uuid, false,
4611 sk);
4612 }
4613
4614 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
4615
4616 return mgmt_cmd_complete(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
4617 MGMT_OP_SET_EXP_FEATURE, 0,
4618 &rp, sizeof(rp));
4619 }
4620
4621 #ifdef CONFIG_BT_FEATURE_DEBUG
4622 static int set_debug_func(struct sock *sk, struct hci_dev *hdev,
4623 struct mgmt_cp_set_exp_feature *cp, u16 data_len)
4624 {
4625 struct mgmt_rp_set_exp_feature rp;
4626
4627 bool val, changed;
4628 int err;
4629
4630 /* Command requires to use the non-controller index */
4631 if (hdev)
4632 return mgmt_cmd_status(sk, hdev->id,
4633 MGMT_OP_SET_EXP_FEATURE,
4634 MGMT_STATUS_INVALID_INDEX);
4635
4636 /* Parameters are limited to a single octet */
4637 if (data_len != MGMT_SET_EXP_FEATURE_SIZE + 1)
4638 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4639 MGMT_OP_SET_EXP_FEATURE,
4640 MGMT_STATUS_INVALID_PARAMS);
4641
4642 /* Only boolean on/off is supported */
4643 if (cp->param[0] != 0x00 && cp->param[0] != 0x01)
4644 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4645 MGMT_OP_SET_EXP_FEATURE,
4646 MGMT_STATUS_INVALID_PARAMS);
4647
4648 val = !!cp->param[0];
4649 changed = val ? !bt_dbg_get() : bt_dbg_get();
4650 bt_dbg_set(val);
4651
4652 memcpy(rp.uuid, debug_uuid, 16);
4653 rp.flags = cpu_to_le32(val ? BIT(0) : 0);
4654
4655 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
4656
4657 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
4658 MGMT_OP_SET_EXP_FEATURE, 0,
4659 &rp, sizeof(rp));
4660
4661 if (changed)
4662 exp_feature_changed(hdev, debug_uuid, val, sk);
4663
4664 return err;
4665 }
4666 #endif
4667
4668 static int set_mgmt_mesh_func(struct sock *sk, struct hci_dev *hdev,
4669 struct mgmt_cp_set_exp_feature *cp, u16 data_len)
4670 {
4671 struct mgmt_rp_set_exp_feature rp;
4672 bool val, changed;
4673 int err;
4674
4675 /* Command requires to use the controller index */
4676 if (!hdev)
4677 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4678 MGMT_OP_SET_EXP_FEATURE,
4679 MGMT_STATUS_INVALID_INDEX);
4680
4681 /* Parameters are limited to a single octet */
4682 if (data_len != MGMT_SET_EXP_FEATURE_SIZE + 1)
4683 return mgmt_cmd_status(sk, hdev->id,
4684 MGMT_OP_SET_EXP_FEATURE,
4685 MGMT_STATUS_INVALID_PARAMS);
4686
4687 /* Only boolean on/off is supported */
4688 if (cp->param[0] != 0x00 && cp->param[0] != 0x01)
4689 return mgmt_cmd_status(sk, hdev->id,
4690 MGMT_OP_SET_EXP_FEATURE,
4691 MGMT_STATUS_INVALID_PARAMS);
4692
4693 val = !!cp->param[0];
4694
4695 if (val) {
4696 changed = !hci_dev_test_and_set_flag(hdev,
4697 HCI_MESH_EXPERIMENTAL);
4698 } else {
4699 hci_dev_clear_flag(hdev, HCI_MESH);
4700 changed = hci_dev_test_and_clear_flag(hdev,
4701 HCI_MESH_EXPERIMENTAL);
4702 }
4703
4704 memcpy(rp.uuid, mgmt_mesh_uuid, 16);
4705 rp.flags = cpu_to_le32(val ? BIT(0) : 0);
4706
4707 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
4708
4709 err = mgmt_cmd_complete(sk, hdev->id,
4710 MGMT_OP_SET_EXP_FEATURE, 0,
4711 &rp, sizeof(rp));
4712
4713 if (changed)
4714 exp_feature_changed(hdev, mgmt_mesh_uuid, val, sk);
4715
4716 return err;
4717 }
4718
4719 static int set_rpa_resolution_func(struct sock *sk, struct hci_dev *hdev,
4720 struct mgmt_cp_set_exp_feature *cp,
4721 u16 data_len)
4722 {
4723 struct mgmt_rp_set_exp_feature rp;
4724 bool val, changed;
4725 int err;
4726 u32 flags;
4727
4728 /* Command requires to use the controller index */
4729 if (!hdev)
4730 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4731 MGMT_OP_SET_EXP_FEATURE,
4732 MGMT_STATUS_INVALID_INDEX);
4733
4734 /* Changes can only be made when controller is powered down */
4735 if (hdev_is_powered(hdev))
4736 return mgmt_cmd_status(sk, hdev->id,
4737 MGMT_OP_SET_EXP_FEATURE,
4738 MGMT_STATUS_REJECTED);
4739
4740 /* Parameters are limited to a single octet */
4741 if (data_len != MGMT_SET_EXP_FEATURE_SIZE + 1)
4742 return mgmt_cmd_status(sk, hdev->id,
4743 MGMT_OP_SET_EXP_FEATURE,
4744 MGMT_STATUS_INVALID_PARAMS);
4745
4746 /* Only boolean on/off is supported */
4747 if (cp->param[0] != 0x00 && cp->param[0] != 0x01)
4748 return mgmt_cmd_status(sk, hdev->id,
4749 MGMT_OP_SET_EXP_FEATURE,
4750 MGMT_STATUS_INVALID_PARAMS);
4751
4752 val = !!cp->param[0];
4753
4754 if (val) {
4755 changed = !hci_dev_test_and_set_flag(hdev,
4756 HCI_ENABLE_LL_PRIVACY);
4757 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
4758
4759 /* Enable LL privacy + supported settings changed */
4760 flags = BIT(0) | BIT(1);
4761 } else {
4762 changed = hci_dev_test_and_clear_flag(hdev,
4763 HCI_ENABLE_LL_PRIVACY);
4764
4765 /* Disable LL privacy + supported settings changed */
4766 flags = BIT(1);
4767 }
4768
4769 memcpy(rp.uuid, rpa_resolution_uuid, 16);
4770 rp.flags = cpu_to_le32(flags);
4771
4772 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
4773
4774 err = mgmt_cmd_complete(sk, hdev->id,
4775 MGMT_OP_SET_EXP_FEATURE, 0,
4776 &rp, sizeof(rp));
4777
4778 if (changed)
4779 exp_ll_privacy_feature_changed(val, hdev, sk);
4780
4781 return err;
4782 }
4783
4784 static int set_quality_report_func(struct sock *sk, struct hci_dev *hdev,
4785 struct mgmt_cp_set_exp_feature *cp,
4786 u16 data_len)
4787 {
4788 struct mgmt_rp_set_exp_feature rp;
4789 bool val, changed;
4790 int err;
4791
4792 /* Command requires to use a valid controller index */
4793 if (!hdev)
4794 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4795 MGMT_OP_SET_EXP_FEATURE,
4796 MGMT_STATUS_INVALID_INDEX);
4797
4798 /* Parameters are limited to a single octet */
4799 if (data_len != MGMT_SET_EXP_FEATURE_SIZE + 1)
4800 return mgmt_cmd_status(sk, hdev->id,
4801 MGMT_OP_SET_EXP_FEATURE,
4802 MGMT_STATUS_INVALID_PARAMS);
4803
4804 /* Only boolean on/off is supported */
4805 if (cp->param[0] != 0x00 && cp->param[0] != 0x01)
4806 return mgmt_cmd_status(sk, hdev->id,
4807 MGMT_OP_SET_EXP_FEATURE,
4808 MGMT_STATUS_INVALID_PARAMS);
4809
4810 hci_req_sync_lock(hdev);
4811
4812 val = !!cp->param[0];
4813 changed = (val != hci_dev_test_flag(hdev, HCI_QUALITY_REPORT));
4814
4815 if (!aosp_has_quality_report(hdev) && !hdev->set_quality_report) {
4816 err = mgmt_cmd_status(sk, hdev->id,
4817 MGMT_OP_SET_EXP_FEATURE,
4818 MGMT_STATUS_NOT_SUPPORTED);
4819 goto unlock_quality_report;
4820 }
4821
4822 if (changed) {
4823 if (hdev->set_quality_report)
4824 err = hdev->set_quality_report(hdev, val);
4825 else
4826 err = aosp_set_quality_report(hdev, val);
4827
4828 if (err) {
4829 err = mgmt_cmd_status(sk, hdev->id,
4830 MGMT_OP_SET_EXP_FEATURE,
4831 MGMT_STATUS_FAILED);
4832 goto unlock_quality_report;
4833 }
4834
4835 if (val)
4836 hci_dev_set_flag(hdev, HCI_QUALITY_REPORT);
4837 else
4838 hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT);
4839 }
4840
4841 bt_dev_dbg(hdev, "quality report enable %d changed %d", val, changed);
4842
4843 memcpy(rp.uuid, quality_report_uuid, 16);
4844 rp.flags = cpu_to_le32(val ? BIT(0) : 0);
4845 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
4846
4847 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_EXP_FEATURE, 0,
4848 &rp, sizeof(rp));
4849
4850 if (changed)
4851 exp_feature_changed(hdev, quality_report_uuid, val, sk);
4852
4853 unlock_quality_report:
4854 hci_req_sync_unlock(hdev);
4855 return err;
4856 }
4857
4858 static int set_offload_codec_func(struct sock *sk, struct hci_dev *hdev,
4859 struct mgmt_cp_set_exp_feature *cp,
4860 u16 data_len)
4861 {
4862 bool val, changed;
4863 int err;
4864 struct mgmt_rp_set_exp_feature rp;
4865
4866 /* Command requires to use a valid controller index */
4867 if (!hdev)
4868 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4869 MGMT_OP_SET_EXP_FEATURE,
4870 MGMT_STATUS_INVALID_INDEX);
4871
4872 /* Parameters are limited to a single octet */
4873 if (data_len != MGMT_SET_EXP_FEATURE_SIZE + 1)
4874 return mgmt_cmd_status(sk, hdev->id,
4875 MGMT_OP_SET_EXP_FEATURE,
4876 MGMT_STATUS_INVALID_PARAMS);
4877
4878 /* Only boolean on/off is supported */
4879 if (cp->param[0] != 0x00 && cp->param[0] != 0x01)
4880 return mgmt_cmd_status(sk, hdev->id,
4881 MGMT_OP_SET_EXP_FEATURE,
4882 MGMT_STATUS_INVALID_PARAMS);
4883
4884 val = !!cp->param[0];
4885 changed = (val != hci_dev_test_flag(hdev, HCI_OFFLOAD_CODECS_ENABLED));
4886
4887 if (!hdev->get_data_path_id) {
4888 return mgmt_cmd_status(sk, hdev->id,
4889 MGMT_OP_SET_EXP_FEATURE,
4890 MGMT_STATUS_NOT_SUPPORTED);
4891 }
4892
4893 if (changed) {
4894 if (val)
4895 hci_dev_set_flag(hdev, HCI_OFFLOAD_CODECS_ENABLED);
4896 else
4897 hci_dev_clear_flag(hdev, HCI_OFFLOAD_CODECS_ENABLED);
4898 }
4899
4900 bt_dev_info(hdev, "offload codecs enable %d changed %d",
4901 val, changed);
4902
4903 memcpy(rp.uuid, offload_codecs_uuid, 16);
4904 rp.flags = cpu_to_le32(val ? BIT(0) : 0);
4905 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
4906 err = mgmt_cmd_complete(sk, hdev->id,
4907 MGMT_OP_SET_EXP_FEATURE, 0,
4908 &rp, sizeof(rp));
4909
4910 if (changed)
4911 exp_feature_changed(hdev, offload_codecs_uuid, val, sk);
4912
4913 return err;
4914 }
4915
4916 static int set_le_simultaneous_roles_func(struct sock *sk, struct hci_dev *hdev,
4917 struct mgmt_cp_set_exp_feature *cp,
4918 u16 data_len)
4919 {
4920 bool val, changed;
4921 int err;
4922 struct mgmt_rp_set_exp_feature rp;
4923
4924 /* Command requires to use a valid controller index */
4925 if (!hdev)
4926 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4927 MGMT_OP_SET_EXP_FEATURE,
4928 MGMT_STATUS_INVALID_INDEX);
4929
4930 /* Parameters are limited to a single octet */
4931 if (data_len != MGMT_SET_EXP_FEATURE_SIZE + 1)
4932 return mgmt_cmd_status(sk, hdev->id,
4933 MGMT_OP_SET_EXP_FEATURE,
4934 MGMT_STATUS_INVALID_PARAMS);
4935
4936 /* Only boolean on/off is supported */
4937 if (cp->param[0] != 0x00 && cp->param[0] != 0x01)
4938 return mgmt_cmd_status(sk, hdev->id,
4939 MGMT_OP_SET_EXP_FEATURE,
4940 MGMT_STATUS_INVALID_PARAMS);
4941
4942 val = !!cp->param[0];
4943 changed = (val != hci_dev_test_flag(hdev, HCI_LE_SIMULTANEOUS_ROLES));
4944
4945 if (!hci_dev_le_state_simultaneous(hdev)) {
4946 return mgmt_cmd_status(sk, hdev->id,
4947 MGMT_OP_SET_EXP_FEATURE,
4948 MGMT_STATUS_NOT_SUPPORTED);
4949 }
4950
4951 if (changed) {
4952 if (val)
4953 hci_dev_set_flag(hdev, HCI_LE_SIMULTANEOUS_ROLES);
4954 else
4955 hci_dev_clear_flag(hdev, HCI_LE_SIMULTANEOUS_ROLES);
4956 }
4957
4958 bt_dev_info(hdev, "LE simultaneous roles enable %d changed %d",
4959 val, changed);
4960
4961 memcpy(rp.uuid, le_simultaneous_roles_uuid, 16);
4962 rp.flags = cpu_to_le32(val ? BIT(0) : 0);
4963 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
4964 err = mgmt_cmd_complete(sk, hdev->id,
4965 MGMT_OP_SET_EXP_FEATURE, 0,
4966 &rp, sizeof(rp));
4967
4968 if (changed)
4969 exp_feature_changed(hdev, le_simultaneous_roles_uuid, val, sk);
4970
4971 return err;
4972 }
4973
4974 #ifdef CONFIG_BT_LE
4975 static int set_iso_socket_func(struct sock *sk, struct hci_dev *hdev,
4976 struct mgmt_cp_set_exp_feature *cp, u16 data_len)
4977 {
4978 struct mgmt_rp_set_exp_feature rp;
4979 bool val, changed = false;
4980 int err;
4981
4982 /* Command requires to use the non-controller index */
4983 if (hdev)
4984 return mgmt_cmd_status(sk, hdev->id,
4985 MGMT_OP_SET_EXP_FEATURE,
4986 MGMT_STATUS_INVALID_INDEX);
4987
4988 /* Parameters are limited to a single octet */
4989 if (data_len != MGMT_SET_EXP_FEATURE_SIZE + 1)
4990 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4991 MGMT_OP_SET_EXP_FEATURE,
4992 MGMT_STATUS_INVALID_PARAMS);
4993
4994 /* Only boolean on/off is supported */
4995 if (cp->param[0] != 0x00 && cp->param[0] != 0x01)
4996 return mgmt_cmd_status(sk, MGMT_INDEX_NONE,
4997 MGMT_OP_SET_EXP_FEATURE,
4998 MGMT_STATUS_INVALID_PARAMS);
4999
5000 val = cp->param[0] ? true : false;
5001 if (val)
5002 err = iso_init();
5003 else
5004 err = iso_exit();
5005
5006 if (!err)
5007 changed = true;
5008
5009 memcpy(rp.uuid, iso_socket_uuid, 16);
5010 rp.flags = cpu_to_le32(val ? BIT(0) : 0);
5011
5012 hci_sock_set_flag(sk, HCI_MGMT_EXP_FEATURE_EVENTS);
5013
5014 err = mgmt_cmd_complete(sk, MGMT_INDEX_NONE,
5015 MGMT_OP_SET_EXP_FEATURE, 0,
5016 &rp, sizeof(rp));
5017
5018 if (changed)
5019 exp_feature_changed(hdev, iso_socket_uuid, val, sk);
5020
5021 return err;
5022 }
5023 #endif
5024
5025 static const struct mgmt_exp_feature {
5026 const u8 *uuid;
5027 int (*set_func)(struct sock *sk, struct hci_dev *hdev,
5028 struct mgmt_cp_set_exp_feature *cp, u16 data_len);
5029 } exp_features[] = {
5030 EXP_FEAT(ZERO_KEY, set_zero_key_func),
5031 #ifdef CONFIG_BT_FEATURE_DEBUG
5032 EXP_FEAT(debug_uuid, set_debug_func),
5033 #endif
5034 EXP_FEAT(mgmt_mesh_uuid, set_mgmt_mesh_func),
5035 EXP_FEAT(rpa_resolution_uuid, set_rpa_resolution_func),
5036 EXP_FEAT(quality_report_uuid, set_quality_report_func),
5037 EXP_FEAT(offload_codecs_uuid, set_offload_codec_func),
5038 EXP_FEAT(le_simultaneous_roles_uuid, set_le_simultaneous_roles_func),
5039 #ifdef CONFIG_BT_LE
5040 EXP_FEAT(iso_socket_uuid, set_iso_socket_func),
5041 #endif
5042
5043 /* end with a null feature */
5044 EXP_FEAT(NULL, NULL)
5045 };
5046
5047 static int set_exp_feature(struct sock *sk, struct hci_dev *hdev,
5048 void *data, u16 data_len)
5049 {
5050 struct mgmt_cp_set_exp_feature *cp = data;
5051 size_t i = 0;
5052
5053 bt_dev_dbg(hdev, "sock %p", sk);
5054
5055 for (i = 0; exp_features[i].uuid; i++) {
5056 if (!memcmp(cp->uuid, exp_features[i].uuid, 16))
5057 return exp_features[i].set_func(sk, hdev, cp, data_len);
5058 }
5059
5060 return mgmt_cmd_status(sk, hdev ? hdev->id : MGMT_INDEX_NONE,
5061 MGMT_OP_SET_EXP_FEATURE,
5062 MGMT_STATUS_NOT_SUPPORTED);
5063 }
5064
5065 static u32 get_params_flags(struct hci_dev *hdev,
5066 struct hci_conn_params *params)
5067 {
5068 u32 flags = hdev->conn_flags;
5069
5070 /* Devices using RPAs can only be programmed in the acceptlist if
5071 * LL Privacy has been enable otherwise they cannot mark
5072 * HCI_CONN_FLAG_REMOTE_WAKEUP.
5073 */
5074 if ((flags & HCI_CONN_FLAG_REMOTE_WAKEUP) && !use_ll_privacy(hdev) &&
5075 hci_find_irk_by_addr(hdev, &params->addr, params->addr_type))
5076 flags &= ~HCI_CONN_FLAG_REMOTE_WAKEUP;
5077
5078 return flags;
5079 }
5080
5081 static int get_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
5082 u16 data_len)
5083 {
5084 struct mgmt_cp_get_device_flags *cp = data;
5085 struct mgmt_rp_get_device_flags rp;
5086 struct bdaddr_list_with_flags *br_params;
5087 struct hci_conn_params *params;
5088 u32 supported_flags;
5089 u32 current_flags = 0;
5090 u8 status = MGMT_STATUS_INVALID_PARAMS;
5091
5092 bt_dev_dbg(hdev, "Get device flags %pMR (type 0x%x)\n",
5093 &cp->addr.bdaddr, cp->addr.type);
5094
5095 hci_dev_lock(hdev);
5096
5097 supported_flags = hdev->conn_flags;
5098
5099 memset(&rp, 0, sizeof(rp));
5100
5101 if (cp->addr.type == BDADDR_BREDR) {
5102 br_params = hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
5103 &cp->addr.bdaddr,
5104 cp->addr.type);
5105 if (!br_params)
5106 goto done;
5107
5108 current_flags = br_params->flags;
5109 } else {
5110 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
5111 le_addr_type(cp->addr.type));
5112 if (!params)
5113 goto done;
5114
5115 supported_flags = get_params_flags(hdev, params);
5116 current_flags = params->flags;
5117 }
5118
5119 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
5120 rp.addr.type = cp->addr.type;
5121 rp.supported_flags = cpu_to_le32(supported_flags);
5122 rp.current_flags = cpu_to_le32(current_flags);
5123
5124 status = MGMT_STATUS_SUCCESS;
5125
5126 done:
5127 hci_dev_unlock(hdev);
5128
5129 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_DEVICE_FLAGS, status,
5130 &rp, sizeof(rp));
5131 }
5132
5133 static void device_flags_changed(struct sock *sk, struct hci_dev *hdev,
5134 bdaddr_t *bdaddr, u8 bdaddr_type,
5135 u32 supported_flags, u32 current_flags)
5136 {
5137 struct mgmt_ev_device_flags_changed ev;
5138
5139 bacpy(&ev.addr.bdaddr, bdaddr);
5140 ev.addr.type = bdaddr_type;
5141 ev.supported_flags = cpu_to_le32(supported_flags);
5142 ev.current_flags = cpu_to_le32(current_flags);
5143
5144 mgmt_event(MGMT_EV_DEVICE_FLAGS_CHANGED, hdev, &ev, sizeof(ev), sk);
5145 }
5146
5147 static int set_device_flags(struct sock *sk, struct hci_dev *hdev, void *data,
5148 u16 len)
5149 {
5150 struct mgmt_cp_set_device_flags *cp = data;
5151 struct bdaddr_list_with_flags *br_params;
5152 struct hci_conn_params *params;
5153 u8 status = MGMT_STATUS_INVALID_PARAMS;
5154 u32 supported_flags;
5155 u32 current_flags = __le32_to_cpu(cp->current_flags);
5156
5157 bt_dev_dbg(hdev, "Set device flags %pMR (type 0x%x) = 0x%x",
5158 &cp->addr.bdaddr, cp->addr.type, current_flags);
5159
5160 // We should take hci_dev_lock() early, I think.. conn_flags can change
5161 supported_flags = hdev->conn_flags;
5162
5163 if ((supported_flags | current_flags) != supported_flags) {
5164 bt_dev_warn(hdev, "Bad flag given (0x%x) vs supported (0x%0x)",
5165 current_flags, supported_flags);
5166 goto done;
5167 }
5168
5169 hci_dev_lock(hdev);
5170
5171 if (cp->addr.type == BDADDR_BREDR) {
5172 br_params = hci_bdaddr_list_lookup_with_flags(&hdev->accept_list,
5173 &cp->addr.bdaddr,
5174 cp->addr.type);
5175
5176 if (br_params) {
5177 br_params->flags = current_flags;
5178 status = MGMT_STATUS_SUCCESS;
5179 } else {
5180 bt_dev_warn(hdev, "No such BR/EDR device %pMR (0x%x)",
5181 &cp->addr.bdaddr, cp->addr.type);
5182 }
5183
5184 goto unlock;
5185 }
5186
5187 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
5188 le_addr_type(cp->addr.type));
5189 if (!params) {
5190 bt_dev_warn(hdev, "No such LE device %pMR (0x%x)",
5191 &cp->addr.bdaddr, le_addr_type(cp->addr.type));
5192 goto unlock;
5193 }
5194
5195 supported_flags = get_params_flags(hdev, params);
5196
5197 if ((supported_flags | current_flags) != supported_flags) {
5198 bt_dev_warn(hdev, "Bad flag given (0x%x) vs supported (0x%0x)",
5199 current_flags, supported_flags);
5200 goto unlock;
5201 }
5202
5203 WRITE_ONCE(params->flags, current_flags);
5204 status = MGMT_STATUS_SUCCESS;
5205
5206 /* Update passive scan if HCI_CONN_FLAG_DEVICE_PRIVACY
5207 * has been set.
5208 */
5209 if (params->flags & HCI_CONN_FLAG_DEVICE_PRIVACY)
5210 hci_update_passive_scan(hdev);
5211
5212 unlock:
5213 hci_dev_unlock(hdev);
5214
5215 done:
5216 if (status == MGMT_STATUS_SUCCESS)
5217 device_flags_changed(sk, hdev, &cp->addr.bdaddr, cp->addr.type,
5218 supported_flags, current_flags);
5219
5220 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_FLAGS, status,
5221 &cp->addr, sizeof(cp->addr));
5222 }
5223
5224 static void mgmt_adv_monitor_added(struct sock *sk, struct hci_dev *hdev,
5225 u16 handle)
5226 {
5227 struct mgmt_ev_adv_monitor_added ev;
5228
5229 ev.monitor_handle = cpu_to_le16(handle);
5230
5231 mgmt_event(MGMT_EV_ADV_MONITOR_ADDED, hdev, &ev, sizeof(ev), sk);
5232 }
5233
5234 void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle)
5235 {
5236 struct mgmt_ev_adv_monitor_removed ev;
5237 struct mgmt_pending_cmd *cmd;
5238 struct sock *sk_skip = NULL;
5239 struct mgmt_cp_remove_adv_monitor *cp;
5240
5241 cmd = pending_find(MGMT_OP_REMOVE_ADV_MONITOR, hdev);
5242 if (cmd) {
5243 cp = cmd->param;
5244
5245 if (cp->monitor_handle)
5246 sk_skip = cmd->sk;
5247 }
5248
5249 ev.monitor_handle = cpu_to_le16(handle);
5250
5251 mgmt_event(MGMT_EV_ADV_MONITOR_REMOVED, hdev, &ev, sizeof(ev), sk_skip);
5252 }
5253
5254 static int read_adv_mon_features(struct sock *sk, struct hci_dev *hdev,
5255 void *data, u16 len)
5256 {
5257 struct adv_monitor *monitor = NULL;
5258 struct mgmt_rp_read_adv_monitor_features *rp = NULL;
5259 int handle, err;
5260 size_t rp_size = 0;
5261 __u32 supported = 0;
5262 __u32 enabled = 0;
5263 __u16 num_handles = 0;
5264 __u16 handles[HCI_MAX_ADV_MONITOR_NUM_HANDLES];
5265
5266 BT_DBG("request for %s", hdev->name);
5267
5268 hci_dev_lock(hdev);
5269
5270 if (msft_monitor_supported(hdev))
5271 supported |= MGMT_ADV_MONITOR_FEATURE_MASK_OR_PATTERNS;
5272
5273 idr_for_each_entry(&hdev->adv_monitors_idr, monitor, handle)
5274 handles[num_handles++] = monitor->handle;
5275
5276 hci_dev_unlock(hdev);
5277
5278 rp_size = sizeof(*rp) + (num_handles * sizeof(u16));
5279 rp = kmalloc(rp_size, GFP_KERNEL);
5280 if (!rp)
5281 return -ENOMEM;
5282
5283 /* All supported features are currently enabled */
5284 enabled = supported;
5285
5286 rp->supported_features = cpu_to_le32(supported);
5287 rp->enabled_features = cpu_to_le32(enabled);
5288 rp->max_num_handles = cpu_to_le16(HCI_MAX_ADV_MONITOR_NUM_HANDLES);
5289 rp->max_num_patterns = HCI_MAX_ADV_MONITOR_NUM_PATTERNS;
5290 rp->num_handles = cpu_to_le16(num_handles);
5291 if (num_handles)
5292 memcpy(&rp->handles, &handles, (num_handles * sizeof(u16)));
5293
5294 err = mgmt_cmd_complete(sk, hdev->id,
5295 MGMT_OP_READ_ADV_MONITOR_FEATURES,
5296 MGMT_STATUS_SUCCESS, rp, rp_size);
5297
5298 kfree(rp);
5299
5300 return err;
5301 }
5302
5303 static void mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev,
5304 void *data, int status)
5305 {
5306 struct mgmt_rp_add_adv_patterns_monitor rp;
5307 struct mgmt_pending_cmd *cmd = data;
5308 struct adv_monitor *monitor = cmd->user_data;
5309
5310 hci_dev_lock(hdev);
5311
5312 rp.monitor_handle = cpu_to_le16(monitor->handle);
5313
5314 if (!status) {
5315 mgmt_adv_monitor_added(cmd->sk, hdev, monitor->handle);
5316 hdev->adv_monitors_cnt++;
5317 if (monitor->state == ADV_MONITOR_STATE_NOT_REGISTERED)
5318 monitor->state = ADV_MONITOR_STATE_REGISTERED;
5319 hci_update_passive_scan(hdev);
5320 }
5321
5322 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
5323 mgmt_status(status), &rp, sizeof(rp));
5324 mgmt_pending_remove(cmd);
5325
5326 hci_dev_unlock(hdev);
5327 bt_dev_dbg(hdev, "add monitor %d complete, status %d",
5328 rp.monitor_handle, status);
5329 }
5330
5331 static int mgmt_add_adv_patterns_monitor_sync(struct hci_dev *hdev, void *data)
5332 {
5333 struct mgmt_pending_cmd *cmd = data;
5334 struct adv_monitor *monitor = cmd->user_data;
5335
5336 return hci_add_adv_monitor(hdev, monitor);
5337 }
5338
5339 static int __add_adv_patterns_monitor(struct sock *sk, struct hci_dev *hdev,
5340 struct adv_monitor *m, u8 status,
5341 void *data, u16 len, u16 op)
5342 {
5343 struct mgmt_pending_cmd *cmd;
5344 int err;
5345
5346 hci_dev_lock(hdev);
5347
5348 if (status)
5349 goto unlock;
5350
5351 if (pending_find(MGMT_OP_SET_LE, hdev) ||
5352 pending_find(MGMT_OP_ADD_ADV_PATTERNS_MONITOR, hdev) ||
5353 pending_find(MGMT_OP_ADD_ADV_PATTERNS_MONITOR_RSSI, hdev) ||
5354 pending_find(MGMT_OP_REMOVE_ADV_MONITOR, hdev)) {
5355 status = MGMT_STATUS_BUSY;
5356 goto unlock;
5357 }
5358
5359 cmd = mgmt_pending_add(sk, op, hdev, data, len);
5360 if (!cmd) {
5361 status = MGMT_STATUS_NO_RESOURCES;
5362 goto unlock;
5363 }
5364
5365 cmd->user_data = m;
5366 err = hci_cmd_sync_queue(hdev, mgmt_add_adv_patterns_monitor_sync, cmd,
5367 mgmt_add_adv_patterns_monitor_complete);
5368 if (err) {
5369 if (err == -ENOMEM)
5370 status = MGMT_STATUS_NO_RESOURCES;
5371 else
5372 status = MGMT_STATUS_FAILED;
5373
5374 goto unlock;
5375 }
5376
5377 hci_dev_unlock(hdev);
5378
5379 return 0;
5380
5381 unlock:
5382 hci_free_adv_monitor(hdev, m);
5383 hci_dev_unlock(hdev);
5384 return mgmt_cmd_status(sk, hdev->id, op, status);
5385 }
5386
5387 static void parse_adv_monitor_rssi(struct adv_monitor *m,
5388 struct mgmt_adv_rssi_thresholds *rssi)
5389 {
5390 if (rssi) {
5391 m->rssi.low_threshold = rssi->low_threshold;
5392 m->rssi.low_threshold_timeout =
5393 __le16_to_cpu(rssi->low_threshold_timeout);
5394 m->rssi.high_threshold = rssi->high_threshold;
5395 m->rssi.high_threshold_timeout =
5396 __le16_to_cpu(rssi->high_threshold_timeout);
5397 m->rssi.sampling_period = rssi->sampling_period;
5398 } else {
5399 /* Default values. These numbers are the least constricting
5400 * parameters for MSFT API to work, so it behaves as if there
5401 * are no rssi parameter to consider. May need to be changed
5402 * if other API are to be supported.
5403 */
5404 m->rssi.low_threshold = -127;
5405 m->rssi.low_threshold_timeout = 60;
5406 m->rssi.high_threshold = -127;
5407 m->rssi.high_threshold_timeout = 0;
5408 m->rssi.sampling_period = 0;
5409 }
5410 }
5411
5412 static u8 parse_adv_monitor_pattern(struct adv_monitor *m, u8 pattern_count,
5413 struct mgmt_adv_pattern *patterns)
5414 {
5415 u8 offset = 0, length = 0;
5416 struct adv_pattern *p = NULL;
5417 int i;
5418
5419 for (i = 0; i < pattern_count; i++) {
5420 offset = patterns[i].offset;
5421 length = patterns[i].length;
5422 if (offset >= HCI_MAX_EXT_AD_LENGTH ||
5423 length > HCI_MAX_EXT_AD_LENGTH ||
5424 (offset + length) > HCI_MAX_EXT_AD_LENGTH)
5425 return MGMT_STATUS_INVALID_PARAMS;
5426
5427 p = kmalloc(sizeof(*p), GFP_KERNEL);
5428 if (!p)
5429 return MGMT_STATUS_NO_RESOURCES;
5430
5431 p->ad_type = patterns[i].ad_type;
5432 p->offset = patterns[i].offset;
5433 p->length = patterns[i].length;
5434 memcpy(p->value, patterns[i].value, p->length);
5435
5436 INIT_LIST_HEAD(&p->list);
5437 list_add(&p->list, &m->patterns);
5438 }
5439
5440 return MGMT_STATUS_SUCCESS;
5441 }
5442
5443 static int add_adv_patterns_monitor(struct sock *sk, struct hci_dev *hdev,
5444 void *data, u16 len)
5445 {
5446 struct mgmt_cp_add_adv_patterns_monitor *cp = data;
5447 struct adv_monitor *m = NULL;
5448 u8 status = MGMT_STATUS_SUCCESS;
5449 size_t expected_size = sizeof(*cp);
5450
5451 BT_DBG("request for %s", hdev->name);
5452
5453 if (len <= sizeof(*cp)) {
5454 status = MGMT_STATUS_INVALID_PARAMS;
5455 goto done;
5456 }
5457
5458 expected_size += cp->pattern_count * sizeof(struct mgmt_adv_pattern);
5459 if (len != expected_size) {
5460 status = MGMT_STATUS_INVALID_PARAMS;
5461 goto done;
5462 }
5463
5464 m = kzalloc(sizeof(*m), GFP_KERNEL);
5465 if (!m) {
5466 status = MGMT_STATUS_NO_RESOURCES;
5467 goto done;
5468 }
5469
5470 INIT_LIST_HEAD(&m->patterns);
5471
5472 parse_adv_monitor_rssi(m, NULL);
5473 status = parse_adv_monitor_pattern(m, cp->pattern_count, cp->patterns);
5474
5475 done:
5476 return __add_adv_patterns_monitor(sk, hdev, m, status, data, len,
5477 MGMT_OP_ADD_ADV_PATTERNS_MONITOR);
5478 }
5479
5480 static int add_adv_patterns_monitor_rssi(struct sock *sk, struct hci_dev *hdev,
5481 void *data, u16 len)
5482 {
5483 struct mgmt_cp_add_adv_patterns_monitor_rssi *cp = data;
5484 struct adv_monitor *m = NULL;
5485 u8 status = MGMT_STATUS_SUCCESS;
5486 size_t expected_size = sizeof(*cp);
5487
5488 BT_DBG("request for %s", hdev->name);
5489
5490 if (len <= sizeof(*cp)) {
5491 status = MGMT_STATUS_INVALID_PARAMS;
5492 goto done;
5493 }
5494
5495 expected_size += cp->pattern_count * sizeof(struct mgmt_adv_pattern);
5496 if (len != expected_size) {
5497 status = MGMT_STATUS_INVALID_PARAMS;
5498 goto done;
5499 }
5500
5501 m = kzalloc(sizeof(*m), GFP_KERNEL);
5502 if (!m) {
5503 status = MGMT_STATUS_NO_RESOURCES;
5504 goto done;
5505 }
5506
5507 INIT_LIST_HEAD(&m->patterns);
5508
5509 parse_adv_monitor_rssi(m, &cp->rssi);
5510 status = parse_adv_monitor_pattern(m, cp->pattern_count, cp->patterns);
5511
5512 done:
5513 return __add_adv_patterns_monitor(sk, hdev, m, status, data, len,
5514 MGMT_OP_ADD_ADV_PATTERNS_MONITOR_RSSI);
5515 }
5516
5517 static void mgmt_remove_adv_monitor_complete(struct hci_dev *hdev,
5518 void *data, int status)
5519 {
5520 struct mgmt_rp_remove_adv_monitor rp;
5521 struct mgmt_pending_cmd *cmd = data;
5522 struct mgmt_cp_remove_adv_monitor *cp = cmd->param;
5523
5524 hci_dev_lock(hdev);
5525
5526 rp.monitor_handle = cp->monitor_handle;
5527
5528 if (!status)
5529 hci_update_passive_scan(hdev);
5530
5531 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
5532 mgmt_status(status), &rp, sizeof(rp));
5533 mgmt_pending_remove(cmd);
5534
5535 hci_dev_unlock(hdev);
5536 bt_dev_dbg(hdev, "remove monitor %d complete, status %d",
5537 rp.monitor_handle, status);
5538 }
5539
5540 static int mgmt_remove_adv_monitor_sync(struct hci_dev *hdev, void *data)
5541 {
5542 struct mgmt_pending_cmd *cmd = data;
5543 struct mgmt_cp_remove_adv_monitor *cp = cmd->param;
5544 u16 handle = __le16_to_cpu(cp->monitor_handle);
5545
5546 if (!handle)
5547 return hci_remove_all_adv_monitor(hdev);
5548
5549 return hci_remove_single_adv_monitor(hdev, handle);
5550 }
5551
5552 static int remove_adv_monitor(struct sock *sk, struct hci_dev *hdev,
5553 void *data, u16 len)
5554 {
5555 struct mgmt_pending_cmd *cmd;
5556 int err, status;
5557
5558 hci_dev_lock(hdev);
5559
5560 if (pending_find(MGMT_OP_SET_LE, hdev) ||
5561 pending_find(MGMT_OP_REMOVE_ADV_MONITOR, hdev) ||
5562 pending_find(MGMT_OP_ADD_ADV_PATTERNS_MONITOR, hdev) ||
5563 pending_find(MGMT_OP_ADD_ADV_PATTERNS_MONITOR_RSSI, hdev)) {
5564 status = MGMT_STATUS_BUSY;
5565 goto unlock;
5566 }
5567
5568 cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_ADV_MONITOR, hdev, data, len);
5569 if (!cmd) {
5570 status = MGMT_STATUS_NO_RESOURCES;
5571 goto unlock;
5572 }
5573
5574 err = hci_cmd_sync_submit(hdev, mgmt_remove_adv_monitor_sync, cmd,
5575 mgmt_remove_adv_monitor_complete);
5576
5577 if (err) {
5578 mgmt_pending_remove(cmd);
5579
5580 if (err == -ENOMEM)
5581 status = MGMT_STATUS_NO_RESOURCES;
5582 else
5583 status = MGMT_STATUS_FAILED;
5584
5585 goto unlock;
5586 }
5587
5588 hci_dev_unlock(hdev);
5589
5590 return 0;
5591
5592 unlock:
5593 hci_dev_unlock(hdev);
5594 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADV_MONITOR,
5595 status);
5596 }
5597
5598 static void read_local_oob_data_complete(struct hci_dev *hdev, void *data, int err)
5599 {
5600 struct mgmt_rp_read_local_oob_data mgmt_rp;
5601 size_t rp_size = sizeof(mgmt_rp);
5602 struct mgmt_pending_cmd *cmd = data;
5603 struct sk_buff *skb = cmd->skb;
5604 u8 status = mgmt_status(err);
5605
5606 if (!status) {
5607 if (!skb)
5608 status = MGMT_STATUS_FAILED;
5609 else if (IS_ERR(skb))
5610 status = mgmt_status(PTR_ERR(skb));
5611 else
5612 status = mgmt_status(skb->data[0]);
5613 }
5614
5615 bt_dev_dbg(hdev, "status %d", status);
5616
5617 if (status) {
5618 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA, status);
5619 goto remove;
5620 }
5621
5622 memset(&mgmt_rp, 0, sizeof(mgmt_rp));
5623
5624 if (!bredr_sc_enabled(hdev)) {
5625 struct hci_rp_read_local_oob_data *rp = (void *) skb->data;
5626
5627 if (skb->len < sizeof(*rp)) {
5628 mgmt_cmd_status(cmd->sk, hdev->id,
5629 MGMT_OP_READ_LOCAL_OOB_DATA,
5630 MGMT_STATUS_FAILED);
5631 goto remove;
5632 }
5633
5634 memcpy(mgmt_rp.hash192, rp->hash, sizeof(rp->hash));
5635 memcpy(mgmt_rp.rand192, rp->rand, sizeof(rp->rand));
5636
5637 rp_size -= sizeof(mgmt_rp.hash256) + sizeof(mgmt_rp.rand256);
5638 } else {
5639 struct hci_rp_read_local_oob_ext_data *rp = (void *) skb->data;
5640
5641 if (skb->len < sizeof(*rp)) {
5642 mgmt_cmd_status(cmd->sk, hdev->id,
5643 MGMT_OP_READ_LOCAL_OOB_DATA,
5644 MGMT_STATUS_FAILED);
5645 goto remove;
5646 }
5647
5648 memcpy(mgmt_rp.hash192, rp->hash192, sizeof(rp->hash192));
5649 memcpy(mgmt_rp.rand192, rp->rand192, sizeof(rp->rand192));
5650
5651 memcpy(mgmt_rp.hash256, rp->hash256, sizeof(rp->hash256));
5652 memcpy(mgmt_rp.rand256, rp->rand256, sizeof(rp->rand256));
5653 }
5654
5655 mgmt_cmd_complete(cmd->sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
5656 MGMT_STATUS_SUCCESS, &mgmt_rp, rp_size);
5657
5658 remove:
5659 if (skb && !IS_ERR(skb))
5660 kfree_skb(skb);
5661
5662 mgmt_pending_free(cmd);
5663 }
5664
5665 static int read_local_oob_data_sync(struct hci_dev *hdev, void *data)
5666 {
5667 struct mgmt_pending_cmd *cmd = data;
5668
5669 if (bredr_sc_enabled(hdev))
5670 cmd->skb = hci_read_local_oob_data_sync(hdev, true, cmd->sk);
5671 else
5672 cmd->skb = hci_read_local_oob_data_sync(hdev, false, cmd->sk);
5673
5674 if (IS_ERR(cmd->skb))
5675 return PTR_ERR(cmd->skb);
5676 else
5677 return 0;
5678 }
5679
5680 static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
5681 void *data, u16 data_len)
5682 {
5683 struct mgmt_pending_cmd *cmd;
5684 int err;
5685
5686 bt_dev_dbg(hdev, "sock %p", sk);
5687
5688 hci_dev_lock(hdev);
5689
5690 if (!hdev_is_powered(hdev)) {
5691 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
5692 MGMT_STATUS_NOT_POWERED);
5693 goto unlock;
5694 }
5695
5696 if (!lmp_ssp_capable(hdev)) {
5697 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
5698 MGMT_STATUS_NOT_SUPPORTED);
5699 goto unlock;
5700 }
5701
5702 cmd = mgmt_pending_new(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
5703 if (!cmd)
5704 err = -ENOMEM;
5705 else
5706 err = hci_cmd_sync_queue(hdev, read_local_oob_data_sync, cmd,
5707 read_local_oob_data_complete);
5708
5709 if (err < 0) {
5710 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
5711 MGMT_STATUS_FAILED);
5712
5713 if (cmd)
5714 mgmt_pending_free(cmd);
5715 }
5716
5717 unlock:
5718 hci_dev_unlock(hdev);
5719 return err;
5720 }
5721
5722 static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
5723 void *data, u16 len)
5724 {
5725 struct mgmt_addr_info *addr = data;
5726 int err;
5727
5728 bt_dev_dbg(hdev, "sock %p", sk);
5729
5730 if (!bdaddr_type_is_valid(addr->type))
5731 return mgmt_cmd_complete(sk, hdev->id,
5732 MGMT_OP_ADD_REMOTE_OOB_DATA,
5733 MGMT_STATUS_INVALID_PARAMS,
5734 addr, sizeof(*addr));
5735
5736 hci_dev_lock(hdev);
5737
5738 if (len == MGMT_ADD_REMOTE_OOB_DATA_SIZE) {
5739 struct mgmt_cp_add_remote_oob_data *cp = data;
5740 u8 status;
5741
5742 if (cp->addr.type != BDADDR_BREDR) {
5743 err = mgmt_cmd_complete(sk, hdev->id,
5744 MGMT_OP_ADD_REMOTE_OOB_DATA,
5745 MGMT_STATUS_INVALID_PARAMS,
5746 &cp->addr, sizeof(cp->addr));
5747 goto unlock;
5748 }
5749
5750 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
5751 cp->addr.type, cp->hash,
5752 cp->rand, NULL, NULL);
5753 if (err < 0)
5754 status = MGMT_STATUS_FAILED;
5755 else
5756 status = MGMT_STATUS_SUCCESS;
5757
5758 err = mgmt_cmd_complete(sk, hdev->id,
5759 MGMT_OP_ADD_REMOTE_OOB_DATA, status,
5760 &cp->addr, sizeof(cp->addr));
5761 } else if (len == MGMT_ADD_REMOTE_OOB_EXT_DATA_SIZE) {
5762 struct mgmt_cp_add_remote_oob_ext_data *cp = data;
5763 u8 *rand192, *hash192, *rand256, *hash256;
5764 u8 status;
5765
5766 if (bdaddr_type_is_le(cp->addr.type)) {
5767 /* Enforce zero-valued 192-bit parameters as
5768 * long as legacy SMP OOB isn't implemented.
5769 */
5770 if (memcmp(cp->rand192, ZERO_KEY, 16) ||
5771 memcmp(cp->hash192, ZERO_KEY, 16)) {
5772 err = mgmt_cmd_complete(sk, hdev->id,
5773 MGMT_OP_ADD_REMOTE_OOB_DATA,
5774 MGMT_STATUS_INVALID_PARAMS,
5775 addr, sizeof(*addr));
5776 goto unlock;
5777 }
5778
5779 rand192 = NULL;
5780 hash192 = NULL;
5781 } else {
5782 /* In case one of the P-192 values is set to zero,
5783 * then just disable OOB data for P-192.
5784 */
5785 if (!memcmp(cp->rand192, ZERO_KEY, 16) ||
5786 !memcmp(cp->hash192, ZERO_KEY, 16)) {
5787 rand192 = NULL;
5788 hash192 = NULL;
5789 } else {
5790 rand192 = cp->rand192;
5791 hash192 = cp->hash192;
5792 }
5793 }
5794
5795 /* In case one of the P-256 values is set to zero, then just
5796 * disable OOB data for P-256.
5797 */
5798 if (!memcmp(cp->rand256, ZERO_KEY, 16) ||
5799 !memcmp(cp->hash256, ZERO_KEY, 16)) {
5800 rand256 = NULL;
5801 hash256 = NULL;
5802 } else {
5803 rand256 = cp->rand256;
5804 hash256 = cp->hash256;
5805 }
5806
5807 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr,
5808 cp->addr.type, hash192, rand192,
5809 hash256, rand256);
5810 if (err < 0)
5811 status = MGMT_STATUS_FAILED;
5812 else
5813 status = MGMT_STATUS_SUCCESS;
5814
5815 err = mgmt_cmd_complete(sk, hdev->id,
5816 MGMT_OP_ADD_REMOTE_OOB_DATA,
5817 status, &cp->addr, sizeof(cp->addr));
5818 } else {
5819 bt_dev_err(hdev, "add_remote_oob_data: invalid len of %u bytes",
5820 len);
5821 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA,
5822 MGMT_STATUS_INVALID_PARAMS);
5823 }
5824
5825 unlock:
5826 hci_dev_unlock(hdev);
5827 return err;
5828 }
5829
5830 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
5831 void *data, u16 len)
5832 {
5833 struct mgmt_cp_remove_remote_oob_data *cp = data;
5834 u8 status;
5835 int err;
5836
5837 bt_dev_dbg(hdev, "sock %p", sk);
5838
5839 if (cp->addr.type != BDADDR_BREDR)
5840 return mgmt_cmd_complete(sk, hdev->id,
5841 MGMT_OP_REMOVE_REMOTE_OOB_DATA,
5842 MGMT_STATUS_INVALID_PARAMS,
5843 &cp->addr, sizeof(cp->addr));
5844
5845 hci_dev_lock(hdev);
5846
5847 if (!bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
5848 hci_remote_oob_data_clear(hdev);
5849 status = MGMT_STATUS_SUCCESS;
5850 goto done;
5851 }
5852
5853 err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr, cp->addr.type);
5854 if (err < 0)
5855 status = MGMT_STATUS_INVALID_PARAMS;
5856 else
5857 status = MGMT_STATUS_SUCCESS;
5858
5859 done:
5860 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
5861 status, &cp->addr, sizeof(cp->addr));
5862
5863 hci_dev_unlock(hdev);
5864 return err;
5865 }
5866
5867 void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status)
5868 {
5869 struct mgmt_pending_cmd *cmd;
5870
5871 bt_dev_dbg(hdev, "status %u", status);
5872
5873 hci_dev_lock(hdev);
5874
5875 cmd = pending_find(MGMT_OP_START_DISCOVERY, hdev);
5876 if (!cmd)
5877 cmd = pending_find(MGMT_OP_START_SERVICE_DISCOVERY, hdev);
5878
5879 if (!cmd)
5880 cmd = pending_find(MGMT_OP_START_LIMITED_DISCOVERY, hdev);
5881
5882 if (cmd) {
5883 cmd->cmd_complete(cmd, mgmt_status(status));
5884 mgmt_pending_remove(cmd);
5885 }
5886
5887 hci_dev_unlock(hdev);
5888 }
5889
5890 static bool discovery_type_is_valid(struct hci_dev *hdev, uint8_t type,
5891 uint8_t *mgmt_status)
5892 {
5893 switch (type) {
5894 case DISCOV_TYPE_LE:
5895 *mgmt_status = mgmt_le_support(hdev);
5896 if (*mgmt_status)
5897 return false;
5898 break;
5899 case DISCOV_TYPE_INTERLEAVED:
5900 *mgmt_status = mgmt_le_support(hdev);
5901 if (*mgmt_status)
5902 return false;
5903 fallthrough;
5904 case DISCOV_TYPE_BREDR:
5905 *mgmt_status = mgmt_bredr_support(hdev);
5906 if (*mgmt_status)
5907 return false;
5908 break;
5909 default:
5910 *mgmt_status = MGMT_STATUS_INVALID_PARAMS;
5911 return false;
5912 }
5913
5914 return true;
5915 }
5916
5917 static void start_discovery_complete(struct hci_dev *hdev, void *data, int err)
5918 {
5919 struct mgmt_pending_cmd *cmd = data;
5920
5921 bt_dev_dbg(hdev, "err %d", err);
5922
5923 if (err == -ECANCELED)
5924 return;
5925
5926 if (cmd != pending_find(MGMT_OP_START_DISCOVERY, hdev) &&
5927 cmd != pending_find(MGMT_OP_START_LIMITED_DISCOVERY, hdev) &&
5928 cmd != pending_find(MGMT_OP_START_SERVICE_DISCOVERY, hdev))
5929 return;
5930
5931 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, mgmt_status(err),
5932 cmd->param, 1);
5933 mgmt_pending_remove(cmd);
5934
5935 hci_discovery_set_state(hdev, err ? DISCOVERY_STOPPED:
5936 DISCOVERY_FINDING);
5937 }
5938
5939 static int start_discovery_sync(struct hci_dev *hdev, void *data)
5940 {
5941 return hci_start_discovery_sync(hdev);
5942 }
5943
5944 static int start_discovery_internal(struct sock *sk, struct hci_dev *hdev,
5945 u16 op, void *data, u16 len)
5946 {
5947 struct mgmt_cp_start_discovery *cp = data;
5948 struct mgmt_pending_cmd *cmd;
5949 u8 status;
5950 int err;
5951
5952 bt_dev_dbg(hdev, "sock %p", sk);
5953
5954 hci_dev_lock(hdev);
5955
5956 if (!hdev_is_powered(hdev)) {
5957 err = mgmt_cmd_complete(sk, hdev->id, op,
5958 MGMT_STATUS_NOT_POWERED,
5959 &cp->type, sizeof(cp->type));
5960 goto failed;
5961 }
5962
5963 if (hdev->discovery.state != DISCOVERY_STOPPED ||
5964 hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
5965 err = mgmt_cmd_complete(sk, hdev->id, op, MGMT_STATUS_BUSY,
5966 &cp->type, sizeof(cp->type));
5967 goto failed;
5968 }
5969
5970 if (!discovery_type_is_valid(hdev, cp->type, &status)) {
5971 err = mgmt_cmd_complete(sk, hdev->id, op, status,
5972 &cp->type, sizeof(cp->type));
5973 goto failed;
5974 }
5975
5976 /* Can't start discovery when it is paused */
5977 if (hdev->discovery_paused) {
5978 err = mgmt_cmd_complete(sk, hdev->id, op, MGMT_STATUS_BUSY,
5979 &cp->type, sizeof(cp->type));
5980 goto failed;
5981 }
5982
5983 /* Clear the discovery filter first to free any previously
5984 * allocated memory for the UUID list.
5985 */
5986 hci_discovery_filter_clear(hdev);
5987
5988 hdev->discovery.type = cp->type;
5989 hdev->discovery.report_invalid_rssi = false;
5990 if (op == MGMT_OP_START_LIMITED_DISCOVERY)
5991 hdev->discovery.limited = true;
5992 else
5993 hdev->discovery.limited = false;
5994
5995 cmd = mgmt_pending_add(sk, op, hdev, data, len);
5996 if (!cmd) {
5997 err = -ENOMEM;
5998 goto failed;
5999 }
6000
6001 err = hci_cmd_sync_queue(hdev, start_discovery_sync, cmd,
6002 start_discovery_complete);
6003 if (err < 0) {
6004 mgmt_pending_remove(cmd);
6005 goto failed;
6006 }
6007
6008 hci_discovery_set_state(hdev, DISCOVERY_STARTING);
6009
6010 failed:
6011 hci_dev_unlock(hdev);
6012 return err;
6013 }
6014
6015 static int start_discovery(struct sock *sk, struct hci_dev *hdev,
6016 void *data, u16 len)
6017 {
6018 return start_discovery_internal(sk, hdev, MGMT_OP_START_DISCOVERY,
6019 data, len);
6020 }
6021
6022 static int start_limited_discovery(struct sock *sk, struct hci_dev *hdev,
6023 void *data, u16 len)
6024 {
6025 return start_discovery_internal(sk, hdev,
6026 MGMT_OP_START_LIMITED_DISCOVERY,
6027 data, len);
6028 }
6029
6030 static int start_service_discovery(struct sock *sk, struct hci_dev *hdev,
6031 void *data, u16 len)
6032 {
6033 struct mgmt_cp_start_service_discovery *cp = data;
6034 struct mgmt_pending_cmd *cmd;
6035 const u16 max_uuid_count = ((U16_MAX - sizeof(*cp)) / 16);
6036 u16 uuid_count, expected_len;
6037 u8 status;
6038 int err;
6039
6040 bt_dev_dbg(hdev, "sock %p", sk);
6041
6042 hci_dev_lock(hdev);
6043
6044 if (!hdev_is_powered(hdev)) {
6045 err = mgmt_cmd_complete(sk, hdev->id,
6046 MGMT_OP_START_SERVICE_DISCOVERY,
6047 MGMT_STATUS_NOT_POWERED,
6048 &cp->type, sizeof(cp->type));
6049 goto failed;
6050 }
6051
6052 if (hdev->discovery.state != DISCOVERY_STOPPED ||
6053 hci_dev_test_flag(hdev, HCI_PERIODIC_INQ)) {
6054 err = mgmt_cmd_complete(sk, hdev->id,
6055 MGMT_OP_START_SERVICE_DISCOVERY,
6056 MGMT_STATUS_BUSY, &cp->type,
6057 sizeof(cp->type));
6058 goto failed;
6059 }
6060
6061 if (hdev->discovery_paused) {
6062 err = mgmt_cmd_complete(sk, hdev->id,
6063 MGMT_OP_START_SERVICE_DISCOVERY,
6064 MGMT_STATUS_BUSY, &cp->type,
6065 sizeof(cp->type));
6066 goto failed;
6067 }
6068
6069 uuid_count = __le16_to_cpu(cp->uuid_count);
6070 if (uuid_count > max_uuid_count) {
6071 bt_dev_err(hdev, "service_discovery: too big uuid_count value %u",
6072 uuid_count);
6073 err = mgmt_cmd_complete(sk, hdev->id,
6074 MGMT_OP_START_SERVICE_DISCOVERY,
6075 MGMT_STATUS_INVALID_PARAMS, &cp->type,
6076 sizeof(cp->type));
6077 goto failed;
6078 }
6079
6080 expected_len = sizeof(*cp) + uuid_count * 16;
6081 if (expected_len != len) {
6082 bt_dev_err(hdev, "service_discovery: expected %u bytes, got %u bytes",
6083 expected_len, len);
6084 err = mgmt_cmd_complete(sk, hdev->id,
6085 MGMT_OP_START_SERVICE_DISCOVERY,
6086 MGMT_STATUS_INVALID_PARAMS, &cp->type,
6087 sizeof(cp->type));
6088 goto failed;
6089 }
6090
6091 if (!discovery_type_is_valid(hdev, cp->type, &status)) {
6092 err = mgmt_cmd_complete(sk, hdev->id,
6093 MGMT_OP_START_SERVICE_DISCOVERY,
6094 status, &cp->type, sizeof(cp->type));
6095 goto failed;
6096 }
6097
6098 cmd = mgmt_pending_add(sk, MGMT_OP_START_SERVICE_DISCOVERY,
6099 hdev, data, len);
6100 if (!cmd) {
6101 err = -ENOMEM;
6102 goto failed;
6103 }
6104
6105 /* Clear the discovery filter first to free any previously
6106 * allocated memory for the UUID list.
6107 */
6108 hci_discovery_filter_clear(hdev);
6109
6110 hdev->discovery.result_filtering = true;
6111 hdev->discovery.type = cp->type;
6112 hdev->discovery.rssi = cp->rssi;
6113 hdev->discovery.uuid_count = uuid_count;
6114
6115 if (uuid_count > 0) {
6116 hdev->discovery.uuids = kmemdup(cp->uuids, uuid_count * 16,
6117 GFP_KERNEL);
6118 if (!hdev->discovery.uuids) {
6119 err = mgmt_cmd_complete(sk, hdev->id,
6120 MGMT_OP_START_SERVICE_DISCOVERY,
6121 MGMT_STATUS_FAILED,
6122 &cp->type, sizeof(cp->type));
6123 mgmt_pending_remove(cmd);
6124 goto failed;
6125 }
6126 }
6127
6128 err = hci_cmd_sync_queue(hdev, start_discovery_sync, cmd,
6129 start_discovery_complete);
6130 if (err < 0) {
6131 mgmt_pending_remove(cmd);
6132 goto failed;
6133 }
6134
6135 hci_discovery_set_state(hdev, DISCOVERY_STARTING);
6136
6137 failed:
6138 hci_dev_unlock(hdev);
6139 return err;
6140 }
6141
6142 void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status)
6143 {
6144 struct mgmt_pending_cmd *cmd;
6145
6146 bt_dev_dbg(hdev, "status %u", status);
6147
6148 hci_dev_lock(hdev);
6149
6150 cmd = pending_find(MGMT_OP_STOP_DISCOVERY, hdev);
6151 if (cmd) {
6152 cmd->cmd_complete(cmd, mgmt_status(status));
6153 mgmt_pending_remove(cmd);
6154 }
6155
6156 hci_dev_unlock(hdev);
6157 }
6158
6159 static void stop_discovery_complete(struct hci_dev *hdev, void *data, int err)
6160 {
6161 struct mgmt_pending_cmd *cmd = data;
6162
6163 if (err == -ECANCELED ||
6164 cmd != pending_find(MGMT_OP_STOP_DISCOVERY, hdev))
6165 return;
6166
6167 bt_dev_dbg(hdev, "err %d", err);
6168
6169 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, mgmt_status(err),
6170 cmd->param, 1);
6171 mgmt_pending_remove(cmd);
6172
6173 if (!err)
6174 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
6175 }
6176
6177 static int stop_discovery_sync(struct hci_dev *hdev, void *data)
6178 {
6179 return hci_stop_discovery_sync(hdev);
6180 }
6181
6182 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
6183 u16 len)
6184 {
6185 struct mgmt_cp_stop_discovery *mgmt_cp = data;
6186 struct mgmt_pending_cmd *cmd;
6187 int err;
6188
6189 bt_dev_dbg(hdev, "sock %p", sk);
6190
6191 hci_dev_lock(hdev);
6192
6193 if (!hci_discovery_active(hdev)) {
6194 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
6195 MGMT_STATUS_REJECTED, &mgmt_cp->type,
6196 sizeof(mgmt_cp->type));
6197 goto unlock;
6198 }
6199
6200 if (hdev->discovery.type != mgmt_cp->type) {
6201 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
6202 MGMT_STATUS_INVALID_PARAMS,
6203 &mgmt_cp->type, sizeof(mgmt_cp->type));
6204 goto unlock;
6205 }
6206
6207 cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, data, len);
6208 if (!cmd) {
6209 err = -ENOMEM;
6210 goto unlock;
6211 }
6212
6213 err = hci_cmd_sync_queue(hdev, stop_discovery_sync, cmd,
6214 stop_discovery_complete);
6215 if (err < 0) {
6216 mgmt_pending_remove(cmd);
6217 goto unlock;
6218 }
6219
6220 hci_discovery_set_state(hdev, DISCOVERY_STOPPING);
6221
6222 unlock:
6223 hci_dev_unlock(hdev);
6224 return err;
6225 }
6226
6227 static int confirm_name(struct sock *sk, struct hci_dev *hdev, void *data,
6228 u16 len)
6229 {
6230 struct mgmt_cp_confirm_name *cp = data;
6231 struct inquiry_entry *e;
6232 int err;
6233
6234 bt_dev_dbg(hdev, "sock %p", sk);
6235
6236 hci_dev_lock(hdev);
6237
6238 if (!hci_discovery_active(hdev)) {
6239 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
6240 MGMT_STATUS_FAILED, &cp->addr,
6241 sizeof(cp->addr));
6242 goto failed;
6243 }
6244
6245 e = hci_inquiry_cache_lookup_unknown(hdev, &cp->addr.bdaddr);
6246 if (!e) {
6247 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME,
6248 MGMT_STATUS_INVALID_PARAMS, &cp->addr,
6249 sizeof(cp->addr));
6250 goto failed;
6251 }
6252
6253 if (cp->name_known) {
6254 e->name_state = NAME_KNOWN;
6255 list_del(&e->list);
6256 } else {
6257 e->name_state = NAME_NEEDED;
6258 hci_inquiry_cache_update_resolve(hdev, e);
6259 }
6260
6261 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_CONFIRM_NAME, 0,
6262 &cp->addr, sizeof(cp->addr));
6263
6264 failed:
6265 hci_dev_unlock(hdev);
6266 return err;
6267 }
6268
6269 static int block_device(struct sock *sk, struct hci_dev *hdev, void *data,
6270 u16 len)
6271 {
6272 struct mgmt_cp_block_device *cp = data;
6273 u8 status;
6274 int err;
6275
6276 bt_dev_dbg(hdev, "sock %p", sk);
6277
6278 if (!bdaddr_type_is_valid(cp->addr.type))
6279 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE,
6280 MGMT_STATUS_INVALID_PARAMS,
6281 &cp->addr, sizeof(cp->addr));
6282
6283 hci_dev_lock(hdev);
6284
6285 err = hci_bdaddr_list_add(&hdev->reject_list, &cp->addr.bdaddr,
6286 cp->addr.type);
6287 if (err < 0) {
6288 status = MGMT_STATUS_FAILED;
6289 goto done;
6290 }
6291
6292 mgmt_event(MGMT_EV_DEVICE_BLOCKED, hdev, &cp->addr, sizeof(cp->addr),
6293 sk);
6294 status = MGMT_STATUS_SUCCESS;
6295
6296 done:
6297 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_BLOCK_DEVICE, status,
6298 &cp->addr, sizeof(cp->addr));
6299
6300 hci_dev_unlock(hdev);
6301
6302 return err;
6303 }
6304
6305 static int unblock_device(struct sock *sk, struct hci_dev *hdev, void *data,
6306 u16 len)
6307 {
6308 struct mgmt_cp_unblock_device *cp = data;
6309 u8 status;
6310 int err;
6311
6312 bt_dev_dbg(hdev, "sock %p", sk);
6313
6314 if (!bdaddr_type_is_valid(cp->addr.type))
6315 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE,
6316 MGMT_STATUS_INVALID_PARAMS,
6317 &cp->addr, sizeof(cp->addr));
6318
6319 hci_dev_lock(hdev);
6320
6321 err = hci_bdaddr_list_del(&hdev->reject_list, &cp->addr.bdaddr,
6322 cp->addr.type);
6323 if (err < 0) {
6324 status = MGMT_STATUS_INVALID_PARAMS;
6325 goto done;
6326 }
6327
6328 mgmt_event(MGMT_EV_DEVICE_UNBLOCKED, hdev, &cp->addr, sizeof(cp->addr),
6329 sk);
6330 status = MGMT_STATUS_SUCCESS;
6331
6332 done:
6333 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_UNBLOCK_DEVICE, status,
6334 &cp->addr, sizeof(cp->addr));
6335
6336 hci_dev_unlock(hdev);
6337
6338 return err;
6339 }
6340
6341 static int set_device_id_sync(struct hci_dev *hdev, void *data)
6342 {
6343 return hci_update_eir_sync(hdev);
6344 }
6345
6346 static int set_device_id(struct sock *sk, struct hci_dev *hdev, void *data,
6347 u16 len)
6348 {
6349 struct mgmt_cp_set_device_id *cp = data;
6350 int err;
6351 __u16 source;
6352
6353 bt_dev_dbg(hdev, "sock %p", sk);
6354
6355 source = __le16_to_cpu(cp->source);
6356
6357 if (source > 0x0002)
6358 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEVICE_ID,
6359 MGMT_STATUS_INVALID_PARAMS);
6360
6361 hci_dev_lock(hdev);
6362
6363 hdev->devid_source = source;
6364 hdev->devid_vendor = __le16_to_cpu(cp->vendor);
6365 hdev->devid_product = __le16_to_cpu(cp->product);
6366 hdev->devid_version = __le16_to_cpu(cp->version);
6367
6368 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_DEVICE_ID, 0,
6369 NULL, 0);
6370
6371 hci_cmd_sync_queue(hdev, set_device_id_sync, NULL, NULL);
6372
6373 hci_dev_unlock(hdev);
6374
6375 return err;
6376 }
6377
6378 static void enable_advertising_instance(struct hci_dev *hdev, int err)
6379 {
6380 if (err)
6381 bt_dev_err(hdev, "failed to re-configure advertising %d", err);
6382 else
6383 bt_dev_dbg(hdev, "status %d", err);
6384 }
6385
6386 static void set_advertising_complete(struct hci_dev *hdev, void *data, int err)
6387 {
6388 struct cmd_lookup match = { NULL, hdev };
6389 u8 instance;
6390 struct adv_info *adv_instance;
6391 u8 status = mgmt_status(err);
6392
6393 if (status) {
6394 mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev,
6395 cmd_status_rsp, &status);
6396 return;
6397 }
6398
6399 if (hci_dev_test_flag(hdev, HCI_LE_ADV))
6400 hci_dev_set_flag(hdev, HCI_ADVERTISING);
6401 else
6402 hci_dev_clear_flag(hdev, HCI_ADVERTISING);
6403
6404 mgmt_pending_foreach(MGMT_OP_SET_ADVERTISING, hdev, settings_rsp,
6405 &match);
6406
6407 new_settings(hdev, match.sk);
6408
6409 if (match.sk)
6410 sock_put(match.sk);
6411
6412 /* If "Set Advertising" was just disabled and instance advertising was
6413 * set up earlier, then re-enable multi-instance advertising.
6414 */
6415 if (hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
6416 list_empty(&hdev->adv_instances))
6417 return;
6418
6419 instance = hdev->cur_adv_instance;
6420 if (!instance) {
6421 adv_instance = list_first_entry_or_null(&hdev->adv_instances,
6422 struct adv_info, list);
6423 if (!adv_instance)
6424 return;
6425
6426 instance = adv_instance->instance;
6427 }
6428
6429 err = hci_schedule_adv_instance_sync(hdev, instance, true);
6430
6431 enable_advertising_instance(hdev, err);
6432 }
6433
6434 static int set_adv_sync(struct hci_dev *hdev, void *data)
6435 {
6436 struct mgmt_pending_cmd *cmd = data;
6437 struct mgmt_mode *cp = cmd->param;
6438 u8 val = !!cp->val;
6439
6440 if (cp->val == 0x02)
6441 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
6442 else
6443 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
6444
6445 cancel_adv_timeout(hdev);
6446
6447 if (val) {
6448 /* Switch to instance "0" for the Set Advertising setting.
6449 * We cannot use update_[adv|scan_rsp]_data() here as the
6450 * HCI_ADVERTISING flag is not yet set.
6451 */
6452 hdev->cur_adv_instance = 0x00;
6453
6454 if (ext_adv_capable(hdev)) {
6455 hci_start_ext_adv_sync(hdev, 0x00);
6456 } else {
6457 hci_update_adv_data_sync(hdev, 0x00);
6458 hci_update_scan_rsp_data_sync(hdev, 0x00);
6459 hci_enable_advertising_sync(hdev);
6460 }
6461 } else {
6462 hci_disable_advertising_sync(hdev);
6463 }
6464
6465 return 0;
6466 }
6467
6468 static int set_advertising(struct sock *sk, struct hci_dev *hdev, void *data,
6469 u16 len)
6470 {
6471 struct mgmt_mode *cp = data;
6472 struct mgmt_pending_cmd *cmd;
6473 u8 val, status;
6474 int err;
6475
6476 bt_dev_dbg(hdev, "sock %p", sk);
6477
6478 status = mgmt_le_support(hdev);
6479 if (status)
6480 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
6481 status);
6482
6483 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
6484 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
6485 MGMT_STATUS_INVALID_PARAMS);
6486
6487 if (hdev->advertising_paused)
6488 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
6489 MGMT_STATUS_BUSY);
6490
6491 hci_dev_lock(hdev);
6492
6493 val = !!cp->val;
6494
6495 /* The following conditions are ones which mean that we should
6496 * not do any HCI communication but directly send a mgmt
6497 * response to user space (after toggling the flag if
6498 * necessary).
6499 */
6500 if (!hdev_is_powered(hdev) ||
6501 (val == hci_dev_test_flag(hdev, HCI_ADVERTISING) &&
6502 (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_ADVERTISING_CONNECTABLE)) ||
6503 hci_dev_test_flag(hdev, HCI_MESH) ||
6504 hci_conn_num(hdev, LE_LINK) > 0 ||
6505 (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
6506 hdev->le_scan_type == LE_SCAN_ACTIVE)) {
6507 bool changed;
6508
6509 if (cp->val) {
6510 hdev->cur_adv_instance = 0x00;
6511 changed = !hci_dev_test_and_set_flag(hdev, HCI_ADVERTISING);
6512 if (cp->val == 0x02)
6513 hci_dev_set_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
6514 else
6515 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
6516 } else {
6517 changed = hci_dev_test_and_clear_flag(hdev, HCI_ADVERTISING);
6518 hci_dev_clear_flag(hdev, HCI_ADVERTISING_CONNECTABLE);
6519 }
6520
6521 err = send_settings_rsp(sk, MGMT_OP_SET_ADVERTISING, hdev);
6522 if (err < 0)
6523 goto unlock;
6524
6525 if (changed)
6526 err = new_settings(hdev, sk);
6527
6528 goto unlock;
6529 }
6530
6531 if (pending_find(MGMT_OP_SET_ADVERTISING, hdev) ||
6532 pending_find(MGMT_OP_SET_LE, hdev)) {
6533 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_ADVERTISING,
6534 MGMT_STATUS_BUSY);
6535 goto unlock;
6536 }
6537
6538 cmd = mgmt_pending_add(sk, MGMT_OP_SET_ADVERTISING, hdev, data, len);
6539 if (!cmd)
6540 err = -ENOMEM;
6541 else
6542 err = hci_cmd_sync_queue(hdev, set_adv_sync, cmd,
6543 set_advertising_complete);
6544
6545 if (err < 0 && cmd)
6546 mgmt_pending_remove(cmd);
6547
6548 unlock:
6549 hci_dev_unlock(hdev);
6550 return err;
6551 }
6552
6553 static int set_static_address(struct sock *sk, struct hci_dev *hdev,
6554 void *data, u16 len)
6555 {
6556 struct mgmt_cp_set_static_address *cp = data;
6557 int err;
6558
6559 bt_dev_dbg(hdev, "sock %p", sk);
6560
6561 if (!lmp_le_capable(hdev))
6562 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
6563 MGMT_STATUS_NOT_SUPPORTED);
6564
6565 if (hdev_is_powered(hdev))
6566 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_STATIC_ADDRESS,
6567 MGMT_STATUS_REJECTED);
6568
6569 if (bacmp(&cp->bdaddr, BDADDR_ANY)) {
6570 if (!bacmp(&cp->bdaddr, BDADDR_NONE))
6571 return mgmt_cmd_status(sk, hdev->id,
6572 MGMT_OP_SET_STATIC_ADDRESS,
6573 MGMT_STATUS_INVALID_PARAMS);
6574
6575 /* Two most significant bits shall be set */
6576 if ((cp->bdaddr.b[5] & 0xc0) != 0xc0)
6577 return mgmt_cmd_status(sk, hdev->id,
6578 MGMT_OP_SET_STATIC_ADDRESS,
6579 MGMT_STATUS_INVALID_PARAMS);
6580 }
6581
6582 hci_dev_lock(hdev);
6583
6584 bacpy(&hdev->static_addr, &cp->bdaddr);
6585
6586 err = send_settings_rsp(sk, MGMT_OP_SET_STATIC_ADDRESS, hdev);
6587 if (err < 0)
6588 goto unlock;
6589
6590 err = new_settings(hdev, sk);
6591
6592 unlock:
6593 hci_dev_unlock(hdev);
6594 return err;
6595 }
6596
6597 static int set_scan_params(struct sock *sk, struct hci_dev *hdev,
6598 void *data, u16 len)
6599 {
6600 struct mgmt_cp_set_scan_params *cp = data;
6601 __u16 interval, window;
6602 int err;
6603
6604 bt_dev_dbg(hdev, "sock %p", sk);
6605
6606 if (!lmp_le_capable(hdev))
6607 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
6608 MGMT_STATUS_NOT_SUPPORTED);
6609
6610 interval = __le16_to_cpu(cp->interval);
6611
6612 if (interval < 0x0004 || interval > 0x4000)
6613 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
6614 MGMT_STATUS_INVALID_PARAMS);
6615
6616 window = __le16_to_cpu(cp->window);
6617
6618 if (window < 0x0004 || window > 0x4000)
6619 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
6620 MGMT_STATUS_INVALID_PARAMS);
6621
6622 if (window > interval)
6623 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS,
6624 MGMT_STATUS_INVALID_PARAMS);
6625
6626 hci_dev_lock(hdev);
6627
6628 hdev->le_scan_interval = interval;
6629 hdev->le_scan_window = window;
6630
6631 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_SET_SCAN_PARAMS, 0,
6632 NULL, 0);
6633
6634 /* If background scan is running, restart it so new parameters are
6635 * loaded.
6636 */
6637 if (hci_dev_test_flag(hdev, HCI_LE_SCAN) &&
6638 hdev->discovery.state == DISCOVERY_STOPPED)
6639 hci_update_passive_scan(hdev);
6640
6641 hci_dev_unlock(hdev);
6642
6643 return err;
6644 }
6645
6646 static void fast_connectable_complete(struct hci_dev *hdev, void *data, int err)
6647 {
6648 struct mgmt_pending_cmd *cmd = data;
6649
6650 bt_dev_dbg(hdev, "err %d", err);
6651
6652 if (err) {
6653 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
6654 mgmt_status(err));
6655 } else {
6656 struct mgmt_mode *cp = cmd->param;
6657
6658 if (cp->val)
6659 hci_dev_set_flag(hdev, HCI_FAST_CONNECTABLE);
6660 else
6661 hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
6662
6663 send_settings_rsp(cmd->sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev);
6664 new_settings(hdev, cmd->sk);
6665 }
6666
6667 mgmt_pending_free(cmd);
6668 }
6669
6670 static int write_fast_connectable_sync(struct hci_dev *hdev, void *data)
6671 {
6672 struct mgmt_pending_cmd *cmd = data;
6673 struct mgmt_mode *cp = cmd->param;
6674
6675 return hci_write_fast_connectable_sync(hdev, cp->val);
6676 }
6677
6678 static int set_fast_connectable(struct sock *sk, struct hci_dev *hdev,
6679 void *data, u16 len)
6680 {
6681 struct mgmt_mode *cp = data;
6682 struct mgmt_pending_cmd *cmd;
6683 int err;
6684
6685 bt_dev_dbg(hdev, "sock %p", sk);
6686
6687 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) ||
6688 hdev->hci_ver < BLUETOOTH_VER_1_2)
6689 return mgmt_cmd_status(sk, hdev->id,
6690 MGMT_OP_SET_FAST_CONNECTABLE,
6691 MGMT_STATUS_NOT_SUPPORTED);
6692
6693 if (cp->val != 0x00 && cp->val != 0x01)
6694 return mgmt_cmd_status(sk, hdev->id,
6695 MGMT_OP_SET_FAST_CONNECTABLE,
6696 MGMT_STATUS_INVALID_PARAMS);
6697
6698 hci_dev_lock(hdev);
6699
6700 if (!!cp->val == hci_dev_test_flag(hdev, HCI_FAST_CONNECTABLE)) {
6701 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev);
6702 goto unlock;
6703 }
6704
6705 if (!hdev_is_powered(hdev)) {
6706 hci_dev_change_flag(hdev, HCI_FAST_CONNECTABLE);
6707 err = send_settings_rsp(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev);
6708 new_settings(hdev, sk);
6709 goto unlock;
6710 }
6711
6712 cmd = mgmt_pending_new(sk, MGMT_OP_SET_FAST_CONNECTABLE, hdev, data,
6713 len);
6714 if (!cmd)
6715 err = -ENOMEM;
6716 else
6717 err = hci_cmd_sync_queue(hdev, write_fast_connectable_sync, cmd,
6718 fast_connectable_complete);
6719
6720 if (err < 0) {
6721 mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_FAST_CONNECTABLE,
6722 MGMT_STATUS_FAILED);
6723
6724 if (cmd)
6725 mgmt_pending_free(cmd);
6726 }
6727
6728 unlock:
6729 hci_dev_unlock(hdev);
6730
6731 return err;
6732 }
6733
6734 static void set_bredr_complete(struct hci_dev *hdev, void *data, int err)
6735 {
6736 struct mgmt_pending_cmd *cmd = data;
6737
6738 bt_dev_dbg(hdev, "err %d", err);
6739
6740 if (err) {
6741 u8 mgmt_err = mgmt_status(err);
6742
6743 /* We need to restore the flag if related HCI commands
6744 * failed.
6745 */
6746 hci_dev_clear_flag(hdev, HCI_BREDR_ENABLED);
6747
6748 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
6749 } else {
6750 send_settings_rsp(cmd->sk, MGMT_OP_SET_BREDR, hdev);
6751 new_settings(hdev, cmd->sk);
6752 }
6753
6754 mgmt_pending_free(cmd);
6755 }
6756
6757 static int set_bredr_sync(struct hci_dev *hdev, void *data)
6758 {
6759 int status;
6760
6761 status = hci_write_fast_connectable_sync(hdev, false);
6762
6763 if (!status)
6764 status = hci_update_scan_sync(hdev);
6765
6766 /* Since only the advertising data flags will change, there
6767 * is no need to update the scan response data.
6768 */
6769 if (!status)
6770 status = hci_update_adv_data_sync(hdev, hdev->cur_adv_instance);
6771
6772 return status;
6773 }
6774
6775 static int set_bredr(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
6776 {
6777 struct mgmt_mode *cp = data;
6778 struct mgmt_pending_cmd *cmd;
6779 int err;
6780
6781 bt_dev_dbg(hdev, "sock %p", sk);
6782
6783 if (!lmp_bredr_capable(hdev) || !lmp_le_capable(hdev))
6784 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
6785 MGMT_STATUS_NOT_SUPPORTED);
6786
6787 if (!hci_dev_test_flag(hdev, HCI_LE_ENABLED))
6788 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
6789 MGMT_STATUS_REJECTED);
6790
6791 if (cp->val != 0x00 && cp->val != 0x01)
6792 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
6793 MGMT_STATUS_INVALID_PARAMS);
6794
6795 hci_dev_lock(hdev);
6796
6797 if (cp->val == hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
6798 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
6799 goto unlock;
6800 }
6801
6802 if (!hdev_is_powered(hdev)) {
6803 if (!cp->val) {
6804 hci_dev_clear_flag(hdev, HCI_DISCOVERABLE);
6805 hci_dev_clear_flag(hdev, HCI_SSP_ENABLED);
6806 hci_dev_clear_flag(hdev, HCI_LINK_SECURITY);
6807 hci_dev_clear_flag(hdev, HCI_FAST_CONNECTABLE);
6808 }
6809
6810 hci_dev_change_flag(hdev, HCI_BREDR_ENABLED);
6811
6812 err = send_settings_rsp(sk, MGMT_OP_SET_BREDR, hdev);
6813 if (err < 0)
6814 goto unlock;
6815
6816 err = new_settings(hdev, sk);
6817 goto unlock;
6818 }
6819
6820 /* Reject disabling when powered on */
6821 if (!cp->val) {
6822 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
6823 MGMT_STATUS_REJECTED);
6824 goto unlock;
6825 } else {
6826 /* When configuring a dual-mode controller to operate
6827 * with LE only and using a static address, then switching
6828 * BR/EDR back on is not allowed.
6829 *
6830 * Dual-mode controllers shall operate with the public
6831 * address as its identity address for BR/EDR and LE. So
6832 * reject the attempt to create an invalid configuration.
6833 *
6834 * The same restrictions applies when secure connections
6835 * has been enabled. For BR/EDR this is a controller feature
6836 * while for LE it is a host stack feature. This means that
6837 * switching BR/EDR back on when secure connections has been
6838 * enabled is not a supported transaction.
6839 */
6840 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
6841 (bacmp(&hdev->static_addr, BDADDR_ANY) ||
6842 hci_dev_test_flag(hdev, HCI_SC_ENABLED))) {
6843 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
6844 MGMT_STATUS_REJECTED);
6845 goto unlock;
6846 }
6847 }
6848
6849 cmd = mgmt_pending_new(sk, MGMT_OP_SET_BREDR, hdev, data, len);
6850 if (!cmd)
6851 err = -ENOMEM;
6852 else
6853 err = hci_cmd_sync_queue(hdev, set_bredr_sync, cmd,
6854 set_bredr_complete);
6855
6856 if (err < 0) {
6857 mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_BREDR,
6858 MGMT_STATUS_FAILED);
6859 if (cmd)
6860 mgmt_pending_free(cmd);
6861
6862 goto unlock;
6863 }
6864
6865 /* We need to flip the bit already here so that
6866 * hci_req_update_adv_data generates the correct flags.
6867 */
6868 hci_dev_set_flag(hdev, HCI_BREDR_ENABLED);
6869
6870 unlock:
6871 hci_dev_unlock(hdev);
6872 return err;
6873 }
6874
6875 static void set_secure_conn_complete(struct hci_dev *hdev, void *data, int err)
6876 {
6877 struct mgmt_pending_cmd *cmd = data;
6878 struct mgmt_mode *cp;
6879
6880 bt_dev_dbg(hdev, "err %d", err);
6881
6882 if (err) {
6883 u8 mgmt_err = mgmt_status(err);
6884
6885 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode, mgmt_err);
6886 goto done;
6887 }
6888
6889 cp = cmd->param;
6890
6891 switch (cp->val) {
6892 case 0x00:
6893 hci_dev_clear_flag(hdev, HCI_SC_ENABLED);
6894 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
6895 break;
6896 case 0x01:
6897 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
6898 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
6899 break;
6900 case 0x02:
6901 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
6902 hci_dev_set_flag(hdev, HCI_SC_ONLY);
6903 break;
6904 }
6905
6906 send_settings_rsp(cmd->sk, cmd->opcode, hdev);
6907 new_settings(hdev, cmd->sk);
6908
6909 done:
6910 mgmt_pending_free(cmd);
6911 }
6912
6913 static int set_secure_conn_sync(struct hci_dev *hdev, void *data)
6914 {
6915 struct mgmt_pending_cmd *cmd = data;
6916 struct mgmt_mode *cp = cmd->param;
6917 u8 val = !!cp->val;
6918
6919 /* Force write of val */
6920 hci_dev_set_flag(hdev, HCI_SC_ENABLED);
6921
6922 return hci_write_sc_support_sync(hdev, val);
6923 }
6924
6925 static int set_secure_conn(struct sock *sk, struct hci_dev *hdev,
6926 void *data, u16 len)
6927 {
6928 struct mgmt_mode *cp = data;
6929 struct mgmt_pending_cmd *cmd;
6930 u8 val;
6931 int err;
6932
6933 bt_dev_dbg(hdev, "sock %p", sk);
6934
6935 if (!lmp_sc_capable(hdev) &&
6936 !hci_dev_test_flag(hdev, HCI_LE_ENABLED))
6937 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
6938 MGMT_STATUS_NOT_SUPPORTED);
6939
6940 if (hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
6941 lmp_sc_capable(hdev) &&
6942 !hci_dev_test_flag(hdev, HCI_SSP_ENABLED))
6943 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
6944 MGMT_STATUS_REJECTED);
6945
6946 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
6947 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
6948 MGMT_STATUS_INVALID_PARAMS);
6949
6950 hci_dev_lock(hdev);
6951
6952 if (!hdev_is_powered(hdev) || !lmp_sc_capable(hdev) ||
6953 !hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) {
6954 bool changed;
6955
6956 if (cp->val) {
6957 changed = !hci_dev_test_and_set_flag(hdev,
6958 HCI_SC_ENABLED);
6959 if (cp->val == 0x02)
6960 hci_dev_set_flag(hdev, HCI_SC_ONLY);
6961 else
6962 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
6963 } else {
6964 changed = hci_dev_test_and_clear_flag(hdev,
6965 HCI_SC_ENABLED);
6966 hci_dev_clear_flag(hdev, HCI_SC_ONLY);
6967 }
6968
6969 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
6970 if (err < 0)
6971 goto failed;
6972
6973 if (changed)
6974 err = new_settings(hdev, sk);
6975
6976 goto failed;
6977 }
6978
6979 val = !!cp->val;
6980
6981 if (val == hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
6982 (cp->val == 0x02) == hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
6983 err = send_settings_rsp(sk, MGMT_OP_SET_SECURE_CONN, hdev);
6984 goto failed;
6985 }
6986
6987 cmd = mgmt_pending_new(sk, MGMT_OP_SET_SECURE_CONN, hdev, data, len);
6988 if (!cmd)
6989 err = -ENOMEM;
6990 else
6991 err = hci_cmd_sync_queue(hdev, set_secure_conn_sync, cmd,
6992 set_secure_conn_complete);
6993
6994 if (err < 0) {
6995 mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_SECURE_CONN,
6996 MGMT_STATUS_FAILED);
6997 if (cmd)
6998 mgmt_pending_free(cmd);
6999 }
7000
7001 failed:
7002 hci_dev_unlock(hdev);
7003 return err;
7004 }
7005
7006 static int set_debug_keys(struct sock *sk, struct hci_dev *hdev,
7007 void *data, u16 len)
7008 {
7009 struct mgmt_mode *cp = data;
7010 bool changed, use_changed;
7011 int err;
7012
7013 bt_dev_dbg(hdev, "sock %p", sk);
7014
7015 if (cp->val != 0x00 && cp->val != 0x01 && cp->val != 0x02)
7016 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_DEBUG_KEYS,
7017 MGMT_STATUS_INVALID_PARAMS);
7018
7019 hci_dev_lock(hdev);
7020
7021 if (cp->val)
7022 changed = !hci_dev_test_and_set_flag(hdev, HCI_KEEP_DEBUG_KEYS);
7023 else
7024 changed = hci_dev_test_and_clear_flag(hdev,
7025 HCI_KEEP_DEBUG_KEYS);
7026
7027 if (cp->val == 0x02)
7028 use_changed = !hci_dev_test_and_set_flag(hdev,
7029 HCI_USE_DEBUG_KEYS);
7030 else
7031 use_changed = hci_dev_test_and_clear_flag(hdev,
7032 HCI_USE_DEBUG_KEYS);
7033
7034 if (hdev_is_powered(hdev) && use_changed &&
7035 hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
7036 u8 mode = (cp->val == 0x02) ? 0x01 : 0x00;
7037 hci_send_cmd(hdev, HCI_OP_WRITE_SSP_DEBUG_MODE,
7038 sizeof(mode), &mode);
7039 }
7040
7041 err = send_settings_rsp(sk, MGMT_OP_SET_DEBUG_KEYS, hdev);
7042 if (err < 0)
7043 goto unlock;
7044
7045 if (changed)
7046 err = new_settings(hdev, sk);
7047
7048 unlock:
7049 hci_dev_unlock(hdev);
7050 return err;
7051 }
7052
7053 static int set_privacy(struct sock *sk, struct hci_dev *hdev, void *cp_data,
7054 u16 len)
7055 {
7056 struct mgmt_cp_set_privacy *cp = cp_data;
7057 bool changed;
7058 int err;
7059
7060 bt_dev_dbg(hdev, "sock %p", sk);
7061
7062 if (!lmp_le_capable(hdev))
7063 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
7064 MGMT_STATUS_NOT_SUPPORTED);
7065
7066 if (cp->privacy != 0x00 && cp->privacy != 0x01 && cp->privacy != 0x02)
7067 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
7068 MGMT_STATUS_INVALID_PARAMS);
7069
7070 if (hdev_is_powered(hdev))
7071 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PRIVACY,
7072 MGMT_STATUS_REJECTED);
7073
7074 hci_dev_lock(hdev);
7075
7076 /* If user space supports this command it is also expected to
7077 * handle IRKs. Therefore, set the HCI_RPA_RESOLVING flag.
7078 */
7079 hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
7080
7081 if (cp->privacy) {
7082 changed = !hci_dev_test_and_set_flag(hdev, HCI_PRIVACY);
7083 memcpy(hdev->irk, cp->irk, sizeof(hdev->irk));
7084 hci_dev_set_flag(hdev, HCI_RPA_EXPIRED);
7085 hci_adv_instances_set_rpa_expired(hdev, true);
7086 if (cp->privacy == 0x02)
7087 hci_dev_set_flag(hdev, HCI_LIMITED_PRIVACY);
7088 else
7089 hci_dev_clear_flag(hdev, HCI_LIMITED_PRIVACY);
7090 } else {
7091 changed = hci_dev_test_and_clear_flag(hdev, HCI_PRIVACY);
7092 memset(hdev->irk, 0, sizeof(hdev->irk));
7093 hci_dev_clear_flag(hdev, HCI_RPA_EXPIRED);
7094 hci_adv_instances_set_rpa_expired(hdev, false);
7095 hci_dev_clear_flag(hdev, HCI_LIMITED_PRIVACY);
7096 }
7097
7098 err = send_settings_rsp(sk, MGMT_OP_SET_PRIVACY, hdev);
7099 if (err < 0)
7100 goto unlock;
7101
7102 if (changed)
7103 err = new_settings(hdev, sk);
7104
7105 unlock:
7106 hci_dev_unlock(hdev);
7107 return err;
7108 }
7109
7110 static bool irk_is_valid(struct mgmt_irk_info *irk)
7111 {
7112 switch (irk->addr.type) {
7113 case BDADDR_LE_PUBLIC:
7114 return true;
7115
7116 case BDADDR_LE_RANDOM:
7117 /* Two most significant bits shall be set */
7118 if ((irk->addr.bdaddr.b[5] & 0xc0) != 0xc0)
7119 return false;
7120 return true;
7121 }
7122
7123 return false;
7124 }
7125
7126 static int load_irks(struct sock *sk, struct hci_dev *hdev, void *cp_data,
7127 u16 len)
7128 {
7129 struct mgmt_cp_load_irks *cp = cp_data;
7130 const u16 max_irk_count = ((U16_MAX - sizeof(*cp)) /
7131 sizeof(struct mgmt_irk_info));
7132 u16 irk_count, expected_len;
7133 int i, err;
7134
7135 bt_dev_dbg(hdev, "sock %p", sk);
7136
7137 if (!lmp_le_capable(hdev))
7138 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
7139 MGMT_STATUS_NOT_SUPPORTED);
7140
7141 irk_count = __le16_to_cpu(cp->irk_count);
7142 if (irk_count > max_irk_count) {
7143 bt_dev_err(hdev, "load_irks: too big irk_count value %u",
7144 irk_count);
7145 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
7146 MGMT_STATUS_INVALID_PARAMS);
7147 }
7148
7149 expected_len = struct_size(cp, irks, irk_count);
7150 if (expected_len != len) {
7151 bt_dev_err(hdev, "load_irks: expected %u bytes, got %u bytes",
7152 expected_len, len);
7153 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_IRKS,
7154 MGMT_STATUS_INVALID_PARAMS);
7155 }
7156
7157 bt_dev_dbg(hdev, "irk_count %u", irk_count);
7158
7159 for (i = 0; i < irk_count; i++) {
7160 struct mgmt_irk_info *key = &cp->irks[i];
7161
7162 if (!irk_is_valid(key))
7163 return mgmt_cmd_status(sk, hdev->id,
7164 MGMT_OP_LOAD_IRKS,
7165 MGMT_STATUS_INVALID_PARAMS);
7166 }
7167
7168 hci_dev_lock(hdev);
7169
7170 hci_smp_irks_clear(hdev);
7171
7172 for (i = 0; i < irk_count; i++) {
7173 struct mgmt_irk_info *irk = &cp->irks[i];
7174
7175 if (hci_is_blocked_key(hdev,
7176 HCI_BLOCKED_KEY_TYPE_IRK,
7177 irk->val)) {
7178 bt_dev_warn(hdev, "Skipping blocked IRK for %pMR",
7179 &irk->addr.bdaddr);
7180 continue;
7181 }
7182
7183 hci_add_irk(hdev, &irk->addr.bdaddr,
7184 le_addr_type(irk->addr.type), irk->val,
7185 BDADDR_ANY);
7186 }
7187
7188 hci_dev_set_flag(hdev, HCI_RPA_RESOLVING);
7189
7190 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_IRKS, 0, NULL, 0);
7191
7192 hci_dev_unlock(hdev);
7193
7194 return err;
7195 }
7196
7197 static bool ltk_is_valid(struct mgmt_ltk_info *key)
7198 {
7199 if (key->initiator != 0x00 && key->initiator != 0x01)
7200 return false;
7201
7202 switch (key->addr.type) {
7203 case BDADDR_LE_PUBLIC:
7204 return true;
7205
7206 case BDADDR_LE_RANDOM:
7207 /* Two most significant bits shall be set */
7208 if ((key->addr.bdaddr.b[5] & 0xc0) != 0xc0)
7209 return false;
7210 return true;
7211 }
7212
7213 return false;
7214 }
7215
7216 static int load_long_term_keys(struct sock *sk, struct hci_dev *hdev,
7217 void *cp_data, u16 len)
7218 {
7219 struct mgmt_cp_load_long_term_keys *cp = cp_data;
7220 const u16 max_key_count = ((U16_MAX - sizeof(*cp)) /
7221 sizeof(struct mgmt_ltk_info));
7222 u16 key_count, expected_len;
7223 int i, err;
7224
7225 bt_dev_dbg(hdev, "sock %p", sk);
7226
7227 if (!lmp_le_capable(hdev))
7228 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
7229 MGMT_STATUS_NOT_SUPPORTED);
7230
7231 key_count = __le16_to_cpu(cp->key_count);
7232 if (key_count > max_key_count) {
7233 bt_dev_err(hdev, "load_ltks: too big key_count value %u",
7234 key_count);
7235 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
7236 MGMT_STATUS_INVALID_PARAMS);
7237 }
7238
7239 expected_len = struct_size(cp, keys, key_count);
7240 if (expected_len != len) {
7241 bt_dev_err(hdev, "load_keys: expected %u bytes, got %u bytes",
7242 expected_len, len);
7243 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS,
7244 MGMT_STATUS_INVALID_PARAMS);
7245 }
7246
7247 bt_dev_dbg(hdev, "key_count %u", key_count);
7248
7249 hci_dev_lock(hdev);
7250
7251 hci_smp_ltks_clear(hdev);
7252
7253 for (i = 0; i < key_count; i++) {
7254 struct mgmt_ltk_info *key = &cp->keys[i];
7255 u8 type, authenticated;
7256
7257 if (hci_is_blocked_key(hdev,
7258 HCI_BLOCKED_KEY_TYPE_LTK,
7259 key->val)) {
7260 bt_dev_warn(hdev, "Skipping blocked LTK for %pMR",
7261 &key->addr.bdaddr);
7262 continue;
7263 }
7264
7265 if (!ltk_is_valid(key)) {
7266 bt_dev_warn(hdev, "Invalid LTK for %pMR",
7267 &key->addr.bdaddr);
7268 continue;
7269 }
7270
7271 switch (key->type) {
7272 case MGMT_LTK_UNAUTHENTICATED:
7273 authenticated = 0x00;
7274 type = key->initiator ? SMP_LTK : SMP_LTK_RESPONDER;
7275 break;
7276 case MGMT_LTK_AUTHENTICATED:
7277 authenticated = 0x01;
7278 type = key->initiator ? SMP_LTK : SMP_LTK_RESPONDER;
7279 break;
7280 case MGMT_LTK_P256_UNAUTH:
7281 authenticated = 0x00;
7282 type = SMP_LTK_P256;
7283 break;
7284 case MGMT_LTK_P256_AUTH:
7285 authenticated = 0x01;
7286 type = SMP_LTK_P256;
7287 break;
7288 case MGMT_LTK_P256_DEBUG:
7289 authenticated = 0x00;
7290 type = SMP_LTK_P256_DEBUG;
7291 fallthrough;
7292 default:
7293 continue;
7294 }
7295
7296 hci_add_ltk(hdev, &key->addr.bdaddr,
7297 le_addr_type(key->addr.type), type, authenticated,
7298 key->val, key->enc_size, key->ediv, key->rand);
7299 }
7300
7301 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LONG_TERM_KEYS, 0,
7302 NULL, 0);
7303
7304 hci_dev_unlock(hdev);
7305
7306 return err;
7307 }
7308
7309 static void get_conn_info_complete(struct hci_dev *hdev, void *data, int err)
7310 {
7311 struct mgmt_pending_cmd *cmd = data;
7312 struct hci_conn *conn = cmd->user_data;
7313 struct mgmt_cp_get_conn_info *cp = cmd->param;
7314 struct mgmt_rp_get_conn_info rp;
7315 u8 status;
7316
7317 bt_dev_dbg(hdev, "err %d", err);
7318
7319 memcpy(&rp.addr, &cp->addr, sizeof(rp.addr));
7320
7321 status = mgmt_status(err);
7322 if (status == MGMT_STATUS_SUCCESS) {
7323 rp.rssi = conn->rssi;
7324 rp.tx_power = conn->tx_power;
7325 rp.max_tx_power = conn->max_tx_power;
7326 } else {
7327 rp.rssi = HCI_RSSI_INVALID;
7328 rp.tx_power = HCI_TX_POWER_INVALID;
7329 rp.max_tx_power = HCI_TX_POWER_INVALID;
7330 }
7331
7332 mgmt_cmd_complete(cmd->sk, cmd->index, MGMT_OP_GET_CONN_INFO, status,
7333 &rp, sizeof(rp));
7334
7335 mgmt_pending_free(cmd);
7336 }
7337
7338 static int get_conn_info_sync(struct hci_dev *hdev, void *data)
7339 {
7340 struct mgmt_pending_cmd *cmd = data;
7341 struct mgmt_cp_get_conn_info *cp = cmd->param;
7342 struct hci_conn *conn;
7343 int err;
7344 __le16 handle;
7345
7346 /* Make sure we are still connected */
7347 if (cp->addr.type == BDADDR_BREDR)
7348 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
7349 &cp->addr.bdaddr);
7350 else
7351 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
7352
7353 if (!conn || conn->state != BT_CONNECTED)
7354 return MGMT_STATUS_NOT_CONNECTED;
7355
7356 cmd->user_data = conn;
7357 handle = cpu_to_le16(conn->handle);
7358
7359 /* Refresh RSSI each time */
7360 err = hci_read_rssi_sync(hdev, handle);
7361
7362 /* For LE links TX power does not change thus we don't need to
7363 * query for it once value is known.
7364 */
7365 if (!err && (!bdaddr_type_is_le(cp->addr.type) ||
7366 conn->tx_power == HCI_TX_POWER_INVALID))
7367 err = hci_read_tx_power_sync(hdev, handle, 0x00);
7368
7369 /* Max TX power needs to be read only once per connection */
7370 if (!err && conn->max_tx_power == HCI_TX_POWER_INVALID)
7371 err = hci_read_tx_power_sync(hdev, handle, 0x01);
7372
7373 return err;
7374 }
7375
7376 static int get_conn_info(struct sock *sk, struct hci_dev *hdev, void *data,
7377 u16 len)
7378 {
7379 struct mgmt_cp_get_conn_info *cp = data;
7380 struct mgmt_rp_get_conn_info rp;
7381 struct hci_conn *conn;
7382 unsigned long conn_info_age;
7383 int err = 0;
7384
7385 bt_dev_dbg(hdev, "sock %p", sk);
7386
7387 memset(&rp, 0, sizeof(rp));
7388 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
7389 rp.addr.type = cp->addr.type;
7390
7391 if (!bdaddr_type_is_valid(cp->addr.type))
7392 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
7393 MGMT_STATUS_INVALID_PARAMS,
7394 &rp, sizeof(rp));
7395
7396 hci_dev_lock(hdev);
7397
7398 if (!hdev_is_powered(hdev)) {
7399 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
7400 MGMT_STATUS_NOT_POWERED, &rp,
7401 sizeof(rp));
7402 goto unlock;
7403 }
7404
7405 if (cp->addr.type == BDADDR_BREDR)
7406 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
7407 &cp->addr.bdaddr);
7408 else
7409 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
7410
7411 if (!conn || conn->state != BT_CONNECTED) {
7412 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
7413 MGMT_STATUS_NOT_CONNECTED, &rp,
7414 sizeof(rp));
7415 goto unlock;
7416 }
7417
7418 /* To avoid client trying to guess when to poll again for information we
7419 * calculate conn info age as random value between min/max set in hdev.
7420 */
7421 conn_info_age = get_random_u32_inclusive(hdev->conn_info_min_age,
7422 hdev->conn_info_max_age - 1);
7423
7424 /* Query controller to refresh cached values if they are too old or were
7425 * never read.
7426 */
7427 if (time_after(jiffies, conn->conn_info_timestamp +
7428 msecs_to_jiffies(conn_info_age)) ||
7429 !conn->conn_info_timestamp) {
7430 struct mgmt_pending_cmd *cmd;
7431
7432 cmd = mgmt_pending_new(sk, MGMT_OP_GET_CONN_INFO, hdev, data,
7433 len);
7434 if (!cmd) {
7435 err = -ENOMEM;
7436 } else {
7437 err = hci_cmd_sync_queue(hdev, get_conn_info_sync,
7438 cmd, get_conn_info_complete);
7439 }
7440
7441 if (err < 0) {
7442 mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
7443 MGMT_STATUS_FAILED, &rp, sizeof(rp));
7444
7445 if (cmd)
7446 mgmt_pending_free(cmd);
7447
7448 goto unlock;
7449 }
7450
7451 conn->conn_info_timestamp = jiffies;
7452 } else {
7453 /* Cache is valid, just reply with values cached in hci_conn */
7454 rp.rssi = conn->rssi;
7455 rp.tx_power = conn->tx_power;
7456 rp.max_tx_power = conn->max_tx_power;
7457
7458 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CONN_INFO,
7459 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
7460 }
7461
7462 unlock:
7463 hci_dev_unlock(hdev);
7464 return err;
7465 }
7466
7467 static void get_clock_info_complete(struct hci_dev *hdev, void *data, int err)
7468 {
7469 struct mgmt_pending_cmd *cmd = data;
7470 struct mgmt_cp_get_clock_info *cp = cmd->param;
7471 struct mgmt_rp_get_clock_info rp;
7472 struct hci_conn *conn = cmd->user_data;
7473 u8 status = mgmt_status(err);
7474
7475 bt_dev_dbg(hdev, "err %d", err);
7476
7477 memset(&rp, 0, sizeof(rp));
7478 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
7479 rp.addr.type = cp->addr.type;
7480
7481 if (err)
7482 goto complete;
7483
7484 rp.local_clock = cpu_to_le32(hdev->clock);
7485
7486 if (conn) {
7487 rp.piconet_clock = cpu_to_le32(conn->clock);
7488 rp.accuracy = cpu_to_le16(conn->clock_accuracy);
7489 }
7490
7491 complete:
7492 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode, status, &rp,
7493 sizeof(rp));
7494
7495 mgmt_pending_free(cmd);
7496 }
7497
7498 static int get_clock_info_sync(struct hci_dev *hdev, void *data)
7499 {
7500 struct mgmt_pending_cmd *cmd = data;
7501 struct mgmt_cp_get_clock_info *cp = cmd->param;
7502 struct hci_cp_read_clock hci_cp;
7503 struct hci_conn *conn;
7504
7505 memset(&hci_cp, 0, sizeof(hci_cp));
7506 hci_read_clock_sync(hdev, &hci_cp);
7507
7508 /* Make sure connection still exists */
7509 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
7510 if (!conn || conn->state != BT_CONNECTED)
7511 return MGMT_STATUS_NOT_CONNECTED;
7512
7513 cmd->user_data = conn;
7514 hci_cp.handle = cpu_to_le16(conn->handle);
7515 hci_cp.which = 0x01; /* Piconet clock */
7516
7517 return hci_read_clock_sync(hdev, &hci_cp);
7518 }
7519
7520 static int get_clock_info(struct sock *sk, struct hci_dev *hdev, void *data,
7521 u16 len)
7522 {
7523 struct mgmt_cp_get_clock_info *cp = data;
7524 struct mgmt_rp_get_clock_info rp;
7525 struct mgmt_pending_cmd *cmd;
7526 struct hci_conn *conn;
7527 int err;
7528
7529 bt_dev_dbg(hdev, "sock %p", sk);
7530
7531 memset(&rp, 0, sizeof(rp));
7532 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
7533 rp.addr.type = cp->addr.type;
7534
7535 if (cp->addr.type != BDADDR_BREDR)
7536 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
7537 MGMT_STATUS_INVALID_PARAMS,
7538 &rp, sizeof(rp));
7539
7540 hci_dev_lock(hdev);
7541
7542 if (!hdev_is_powered(hdev)) {
7543 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
7544 MGMT_STATUS_NOT_POWERED, &rp,
7545 sizeof(rp));
7546 goto unlock;
7547 }
7548
7549 if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
7550 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
7551 &cp->addr.bdaddr);
7552 if (!conn || conn->state != BT_CONNECTED) {
7553 err = mgmt_cmd_complete(sk, hdev->id,
7554 MGMT_OP_GET_CLOCK_INFO,
7555 MGMT_STATUS_NOT_CONNECTED,
7556 &rp, sizeof(rp));
7557 goto unlock;
7558 }
7559 } else {
7560 conn = NULL;
7561 }
7562
7563 cmd = mgmt_pending_new(sk, MGMT_OP_GET_CLOCK_INFO, hdev, data, len);
7564 if (!cmd)
7565 err = -ENOMEM;
7566 else
7567 err = hci_cmd_sync_queue(hdev, get_clock_info_sync, cmd,
7568 get_clock_info_complete);
7569
7570 if (err < 0) {
7571 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_CLOCK_INFO,
7572 MGMT_STATUS_FAILED, &rp, sizeof(rp));
7573
7574 if (cmd)
7575 mgmt_pending_free(cmd);
7576 }
7577
7578
7579 unlock:
7580 hci_dev_unlock(hdev);
7581 return err;
7582 }
7583
7584 static bool is_connected(struct hci_dev *hdev, bdaddr_t *addr, u8 type)
7585 {
7586 struct hci_conn *conn;
7587
7588 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, addr);
7589 if (!conn)
7590 return false;
7591
7592 if (conn->dst_type != type)
7593 return false;
7594
7595 if (conn->state != BT_CONNECTED)
7596 return false;
7597
7598 return true;
7599 }
7600
7601 /* This function requires the caller holds hdev->lock */
7602 static int hci_conn_params_set(struct hci_dev *hdev, bdaddr_t *addr,
7603 u8 addr_type, u8 auto_connect)
7604 {
7605 struct hci_conn_params *params;
7606
7607 params = hci_conn_params_add(hdev, addr, addr_type);
7608 if (!params)
7609 return -EIO;
7610
7611 if (params->auto_connect == auto_connect)
7612 return 0;
7613
7614 hci_pend_le_list_del_init(params);
7615
7616 switch (auto_connect) {
7617 case HCI_AUTO_CONN_DISABLED:
7618 case HCI_AUTO_CONN_LINK_LOSS:
7619 /* If auto connect is being disabled when we're trying to
7620 * connect to device, keep connecting.
7621 */
7622 if (params->explicit_connect)
7623 hci_pend_le_list_add(params, &hdev->pend_le_conns);
7624 break;
7625 case HCI_AUTO_CONN_REPORT:
7626 if (params->explicit_connect)
7627 hci_pend_le_list_add(params, &hdev->pend_le_conns);
7628 else
7629 hci_pend_le_list_add(params, &hdev->pend_le_reports);
7630 break;
7631 case HCI_AUTO_CONN_DIRECT:
7632 case HCI_AUTO_CONN_ALWAYS:
7633 if (!is_connected(hdev, addr, addr_type))
7634 hci_pend_le_list_add(params, &hdev->pend_le_conns);
7635 break;
7636 }
7637
7638 params->auto_connect = auto_connect;
7639
7640 bt_dev_dbg(hdev, "addr %pMR (type %u) auto_connect %u",
7641 addr, addr_type, auto_connect);
7642
7643 return 0;
7644 }
7645
7646 static void device_added(struct sock *sk, struct hci_dev *hdev,
7647 bdaddr_t *bdaddr, u8 type, u8 action)
7648 {
7649 struct mgmt_ev_device_added ev;
7650
7651 bacpy(&ev.addr.bdaddr, bdaddr);
7652 ev.addr.type = type;
7653 ev.action = action;
7654
7655 mgmt_event(MGMT_EV_DEVICE_ADDED, hdev, &ev, sizeof(ev), sk);
7656 }
7657
7658 static int add_device_sync(struct hci_dev *hdev, void *data)
7659 {
7660 return hci_update_passive_scan_sync(hdev);
7661 }
7662
7663 static int add_device(struct sock *sk, struct hci_dev *hdev,
7664 void *data, u16 len)
7665 {
7666 struct mgmt_cp_add_device *cp = data;
7667 u8 auto_conn, addr_type;
7668 struct hci_conn_params *params;
7669 int err;
7670 u32 current_flags = 0;
7671 u32 supported_flags;
7672
7673 bt_dev_dbg(hdev, "sock %p", sk);
7674
7675 if (!bdaddr_type_is_valid(cp->addr.type) ||
7676 !bacmp(&cp->addr.bdaddr, BDADDR_ANY))
7677 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
7678 MGMT_STATUS_INVALID_PARAMS,
7679 &cp->addr, sizeof(cp->addr));
7680
7681 if (cp->action != 0x00 && cp->action != 0x01 && cp->action != 0x02)
7682 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
7683 MGMT_STATUS_INVALID_PARAMS,
7684 &cp->addr, sizeof(cp->addr));
7685
7686 hci_dev_lock(hdev);
7687
7688 if (cp->addr.type == BDADDR_BREDR) {
7689 /* Only incoming connections action is supported for now */
7690 if (cp->action != 0x01) {
7691 err = mgmt_cmd_complete(sk, hdev->id,
7692 MGMT_OP_ADD_DEVICE,
7693 MGMT_STATUS_INVALID_PARAMS,
7694 &cp->addr, sizeof(cp->addr));
7695 goto unlock;
7696 }
7697
7698 err = hci_bdaddr_list_add_with_flags(&hdev->accept_list,
7699 &cp->addr.bdaddr,
7700 cp->addr.type, 0);
7701 if (err)
7702 goto unlock;
7703
7704 hci_update_scan(hdev);
7705
7706 goto added;
7707 }
7708
7709 addr_type = le_addr_type(cp->addr.type);
7710
7711 if (cp->action == 0x02)
7712 auto_conn = HCI_AUTO_CONN_ALWAYS;
7713 else if (cp->action == 0x01)
7714 auto_conn = HCI_AUTO_CONN_DIRECT;
7715 else
7716 auto_conn = HCI_AUTO_CONN_REPORT;
7717
7718 /* Kernel internally uses conn_params with resolvable private
7719 * address, but Add Device allows only identity addresses.
7720 * Make sure it is enforced before calling
7721 * hci_conn_params_lookup.
7722 */
7723 if (!hci_is_identity_address(&cp->addr.bdaddr, addr_type)) {
7724 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
7725 MGMT_STATUS_INVALID_PARAMS,
7726 &cp->addr, sizeof(cp->addr));
7727 goto unlock;
7728 }
7729
7730 /* If the connection parameters don't exist for this device,
7731 * they will be created and configured with defaults.
7732 */
7733 if (hci_conn_params_set(hdev, &cp->addr.bdaddr, addr_type,
7734 auto_conn) < 0) {
7735 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
7736 MGMT_STATUS_FAILED, &cp->addr,
7737 sizeof(cp->addr));
7738 goto unlock;
7739 } else {
7740 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
7741 addr_type);
7742 if (params)
7743 current_flags = params->flags;
7744 }
7745
7746 err = hci_cmd_sync_queue(hdev, add_device_sync, NULL, NULL);
7747 if (err < 0)
7748 goto unlock;
7749
7750 added:
7751 device_added(sk, hdev, &cp->addr.bdaddr, cp->addr.type, cp->action);
7752 supported_flags = hdev->conn_flags;
7753 device_flags_changed(NULL, hdev, &cp->addr.bdaddr, cp->addr.type,
7754 supported_flags, current_flags);
7755
7756 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_DEVICE,
7757 MGMT_STATUS_SUCCESS, &cp->addr,
7758 sizeof(cp->addr));
7759
7760 unlock:
7761 hci_dev_unlock(hdev);
7762 return err;
7763 }
7764
7765 static void device_removed(struct sock *sk, struct hci_dev *hdev,
7766 bdaddr_t *bdaddr, u8 type)
7767 {
7768 struct mgmt_ev_device_removed ev;
7769
7770 bacpy(&ev.addr.bdaddr, bdaddr);
7771 ev.addr.type = type;
7772
7773 mgmt_event(MGMT_EV_DEVICE_REMOVED, hdev, &ev, sizeof(ev), sk);
7774 }
7775
7776 static int remove_device_sync(struct hci_dev *hdev, void *data)
7777 {
7778 return hci_update_passive_scan_sync(hdev);
7779 }
7780
7781 static int remove_device(struct sock *sk, struct hci_dev *hdev,
7782 void *data, u16 len)
7783 {
7784 struct mgmt_cp_remove_device *cp = data;
7785 int err;
7786
7787 bt_dev_dbg(hdev, "sock %p", sk);
7788
7789 hci_dev_lock(hdev);
7790
7791 if (bacmp(&cp->addr.bdaddr, BDADDR_ANY)) {
7792 struct hci_conn_params *params;
7793 u8 addr_type;
7794
7795 if (!bdaddr_type_is_valid(cp->addr.type)) {
7796 err = mgmt_cmd_complete(sk, hdev->id,
7797 MGMT_OP_REMOVE_DEVICE,
7798 MGMT_STATUS_INVALID_PARAMS,
7799 &cp->addr, sizeof(cp->addr));
7800 goto unlock;
7801 }
7802
7803 if (cp->addr.type == BDADDR_BREDR) {
7804 err = hci_bdaddr_list_del(&hdev->accept_list,
7805 &cp->addr.bdaddr,
7806 cp->addr.type);
7807 if (err) {
7808 err = mgmt_cmd_complete(sk, hdev->id,
7809 MGMT_OP_REMOVE_DEVICE,
7810 MGMT_STATUS_INVALID_PARAMS,
7811 &cp->addr,
7812 sizeof(cp->addr));
7813 goto unlock;
7814 }
7815
7816 hci_update_scan(hdev);
7817
7818 device_removed(sk, hdev, &cp->addr.bdaddr,
7819 cp->addr.type);
7820 goto complete;
7821 }
7822
7823 addr_type = le_addr_type(cp->addr.type);
7824
7825 /* Kernel internally uses conn_params with resolvable private
7826 * address, but Remove Device allows only identity addresses.
7827 * Make sure it is enforced before calling
7828 * hci_conn_params_lookup.
7829 */
7830 if (!hci_is_identity_address(&cp->addr.bdaddr, addr_type)) {
7831 err = mgmt_cmd_complete(sk, hdev->id,
7832 MGMT_OP_REMOVE_DEVICE,
7833 MGMT_STATUS_INVALID_PARAMS,
7834 &cp->addr, sizeof(cp->addr));
7835 goto unlock;
7836 }
7837
7838 params = hci_conn_params_lookup(hdev, &cp->addr.bdaddr,
7839 addr_type);
7840 if (!params) {
7841 err = mgmt_cmd_complete(sk, hdev->id,
7842 MGMT_OP_REMOVE_DEVICE,
7843 MGMT_STATUS_INVALID_PARAMS,
7844 &cp->addr, sizeof(cp->addr));
7845 goto unlock;
7846 }
7847
7848 if (params->auto_connect == HCI_AUTO_CONN_DISABLED ||
7849 params->auto_connect == HCI_AUTO_CONN_EXPLICIT) {
7850 err = mgmt_cmd_complete(sk, hdev->id,
7851 MGMT_OP_REMOVE_DEVICE,
7852 MGMT_STATUS_INVALID_PARAMS,
7853 &cp->addr, sizeof(cp->addr));
7854 goto unlock;
7855 }
7856
7857 hci_conn_params_free(params);
7858
7859 device_removed(sk, hdev, &cp->addr.bdaddr, cp->addr.type);
7860 } else {
7861 struct hci_conn_params *p, *tmp;
7862 struct bdaddr_list *b, *btmp;
7863
7864 if (cp->addr.type) {
7865 err = mgmt_cmd_complete(sk, hdev->id,
7866 MGMT_OP_REMOVE_DEVICE,
7867 MGMT_STATUS_INVALID_PARAMS,
7868 &cp->addr, sizeof(cp->addr));
7869 goto unlock;
7870 }
7871
7872 list_for_each_entry_safe(b, btmp, &hdev->accept_list, list) {
7873 device_removed(sk, hdev, &b->bdaddr, b->bdaddr_type);
7874 list_del(&b->list);
7875 kfree(b);
7876 }
7877
7878 hci_update_scan(hdev);
7879
7880 list_for_each_entry_safe(p, tmp, &hdev->le_conn_params, list) {
7881 if (p->auto_connect == HCI_AUTO_CONN_DISABLED)
7882 continue;
7883 device_removed(sk, hdev, &p->addr, p->addr_type);
7884 if (p->explicit_connect) {
7885 p->auto_connect = HCI_AUTO_CONN_EXPLICIT;
7886 continue;
7887 }
7888 hci_conn_params_free(p);
7889 }
7890
7891 bt_dev_dbg(hdev, "All LE connection parameters were removed");
7892 }
7893
7894 hci_cmd_sync_queue(hdev, remove_device_sync, NULL, NULL);
7895
7896 complete:
7897 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_DEVICE,
7898 MGMT_STATUS_SUCCESS, &cp->addr,
7899 sizeof(cp->addr));
7900 unlock:
7901 hci_dev_unlock(hdev);
7902 return err;
7903 }
7904
7905 static int conn_update_sync(struct hci_dev *hdev, void *data)
7906 {
7907 struct hci_conn_params *params = data;
7908 struct hci_conn *conn;
7909
7910 conn = hci_conn_hash_lookup_le(hdev, &params->addr, params->addr_type);
7911 if (!conn)
7912 return -ECANCELED;
7913
7914 return hci_le_conn_update_sync(hdev, conn, params);
7915 }
7916
7917 static int load_conn_param(struct sock *sk, struct hci_dev *hdev, void *data,
7918 u16 len)
7919 {
7920 struct mgmt_cp_load_conn_param *cp = data;
7921 const u16 max_param_count = ((U16_MAX - sizeof(*cp)) /
7922 sizeof(struct mgmt_conn_param));
7923 u16 param_count, expected_len;
7924 int i;
7925
7926 if (!lmp_le_capable(hdev))
7927 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
7928 MGMT_STATUS_NOT_SUPPORTED);
7929
7930 param_count = __le16_to_cpu(cp->param_count);
7931 if (param_count > max_param_count) {
7932 bt_dev_err(hdev, "load_conn_param: too big param_count value %u",
7933 param_count);
7934 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
7935 MGMT_STATUS_INVALID_PARAMS);
7936 }
7937
7938 expected_len = struct_size(cp, params, param_count);
7939 if (expected_len != len) {
7940 bt_dev_err(hdev, "load_conn_param: expected %u bytes, got %u bytes",
7941 expected_len, len);
7942 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM,
7943 MGMT_STATUS_INVALID_PARAMS);
7944 }
7945
7946 bt_dev_dbg(hdev, "param_count %u", param_count);
7947
7948 hci_dev_lock(hdev);
7949
7950 if (param_count > 1)
7951 hci_conn_params_clear_disabled(hdev);
7952
7953 for (i = 0; i < param_count; i++) {
7954 struct mgmt_conn_param *param = &cp->params[i];
7955 struct hci_conn_params *hci_param;
7956 u16 min, max, latency, timeout;
7957 bool update = false;
7958 u8 addr_type;
7959
7960 bt_dev_dbg(hdev, "Adding %pMR (type %u)", &param->addr.bdaddr,
7961 param->addr.type);
7962
7963 if (param->addr.type == BDADDR_LE_PUBLIC) {
7964 addr_type = ADDR_LE_DEV_PUBLIC;
7965 } else if (param->addr.type == BDADDR_LE_RANDOM) {
7966 addr_type = ADDR_LE_DEV_RANDOM;
7967 } else {
7968 bt_dev_err(hdev, "ignoring invalid connection parameters");
7969 continue;
7970 }
7971
7972 min = le16_to_cpu(param->min_interval);
7973 max = le16_to_cpu(param->max_interval);
7974 latency = le16_to_cpu(param->latency);
7975 timeout = le16_to_cpu(param->timeout);
7976
7977 bt_dev_dbg(hdev, "min 0x%04x max 0x%04x latency 0x%04x timeout 0x%04x",
7978 min, max, latency, timeout);
7979
7980 if (hci_check_conn_params(min, max, latency, timeout) < 0) {
7981 bt_dev_err(hdev, "ignoring invalid connection parameters");
7982 continue;
7983 }
7984
7985 /* Detect when the loading is for an existing parameter then
7986 * attempt to trigger the connection update procedure.
7987 */
7988 if (!i && param_count == 1) {
7989 hci_param = hci_conn_params_lookup(hdev,
7990 &param->addr.bdaddr,
7991 addr_type);
7992 if (hci_param)
7993 update = true;
7994 else
7995 hci_conn_params_clear_disabled(hdev);
7996 }
7997
7998 hci_param = hci_conn_params_add(hdev, &param->addr.bdaddr,
7999 addr_type);
8000 if (!hci_param) {
8001 bt_dev_err(hdev, "failed to add connection parameters");
8002 continue;
8003 }
8004
8005 hci_param->conn_min_interval = min;
8006 hci_param->conn_max_interval = max;
8007 hci_param->conn_latency = latency;
8008 hci_param->supervision_timeout = timeout;
8009
8010 /* Check if we need to trigger a connection update */
8011 if (update) {
8012 struct hci_conn *conn;
8013
8014 /* Lookup for existing connection as central and check
8015 * if parameters match and if they don't then trigger
8016 * a connection update.
8017 */
8018 conn = hci_conn_hash_lookup_le(hdev, &hci_param->addr,
8019 addr_type);
8020 if (conn && conn->role == HCI_ROLE_MASTER &&
8021 (conn->le_conn_min_interval != min ||
8022 conn->le_conn_max_interval != max ||
8023 conn->le_conn_latency != latency ||
8024 conn->le_supv_timeout != timeout))
8025 hci_cmd_sync_queue(hdev, conn_update_sync,
8026 hci_param, NULL);
8027 }
8028 }
8029
8030 hci_dev_unlock(hdev);
8031
8032 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_LOAD_CONN_PARAM, 0,
8033 NULL, 0);
8034 }
8035
8036 static int set_external_config(struct sock *sk, struct hci_dev *hdev,
8037 void *data, u16 len)
8038 {
8039 struct mgmt_cp_set_external_config *cp = data;
8040 bool changed;
8041 int err;
8042
8043 bt_dev_dbg(hdev, "sock %p", sk);
8044
8045 if (hdev_is_powered(hdev))
8046 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
8047 MGMT_STATUS_REJECTED);
8048
8049 if (cp->config != 0x00 && cp->config != 0x01)
8050 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
8051 MGMT_STATUS_INVALID_PARAMS);
8052
8053 if (!test_bit(HCI_QUIRK_EXTERNAL_CONFIG, &hdev->quirks))
8054 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_EXTERNAL_CONFIG,
8055 MGMT_STATUS_NOT_SUPPORTED);
8056
8057 hci_dev_lock(hdev);
8058
8059 if (cp->config)
8060 changed = !hci_dev_test_and_set_flag(hdev, HCI_EXT_CONFIGURED);
8061 else
8062 changed = hci_dev_test_and_clear_flag(hdev, HCI_EXT_CONFIGURED);
8063
8064 err = send_options_rsp(sk, MGMT_OP_SET_EXTERNAL_CONFIG, hdev);
8065 if (err < 0)
8066 goto unlock;
8067
8068 if (!changed)
8069 goto unlock;
8070
8071 err = new_options(hdev, sk);
8072
8073 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED) == is_configured(hdev)) {
8074 mgmt_index_removed(hdev);
8075
8076 if (hci_dev_test_and_change_flag(hdev, HCI_UNCONFIGURED)) {
8077 hci_dev_set_flag(hdev, HCI_CONFIG);
8078 hci_dev_set_flag(hdev, HCI_AUTO_OFF);
8079
8080 queue_work(hdev->req_workqueue, &hdev->power_on);
8081 } else {
8082 set_bit(HCI_RAW, &hdev->flags);
8083 mgmt_index_added(hdev);
8084 }
8085 }
8086
8087 unlock:
8088 hci_dev_unlock(hdev);
8089 return err;
8090 }
8091
8092 static int set_public_address(struct sock *sk, struct hci_dev *hdev,
8093 void *data, u16 len)
8094 {
8095 struct mgmt_cp_set_public_address *cp = data;
8096 bool changed;
8097 int err;
8098
8099 bt_dev_dbg(hdev, "sock %p", sk);
8100
8101 if (hdev_is_powered(hdev))
8102 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
8103 MGMT_STATUS_REJECTED);
8104
8105 if (!bacmp(&cp->bdaddr, BDADDR_ANY))
8106 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
8107 MGMT_STATUS_INVALID_PARAMS);
8108
8109 if (!hdev->set_bdaddr)
8110 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_SET_PUBLIC_ADDRESS,
8111 MGMT_STATUS_NOT_SUPPORTED);
8112
8113 hci_dev_lock(hdev);
8114
8115 changed = !!bacmp(&hdev->public_addr, &cp->bdaddr);
8116 bacpy(&hdev->public_addr, &cp->bdaddr);
8117
8118 err = send_options_rsp(sk, MGMT_OP_SET_PUBLIC_ADDRESS, hdev);
8119 if (err < 0)
8120 goto unlock;
8121
8122 if (!changed)
8123 goto unlock;
8124
8125 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED))
8126 err = new_options(hdev, sk);
8127
8128 if (is_configured(hdev)) {
8129 mgmt_index_removed(hdev);
8130
8131 hci_dev_clear_flag(hdev, HCI_UNCONFIGURED);
8132
8133 hci_dev_set_flag(hdev, HCI_CONFIG);
8134 hci_dev_set_flag(hdev, HCI_AUTO_OFF);
8135
8136 queue_work(hdev->req_workqueue, &hdev->power_on);
8137 }
8138
8139 unlock:
8140 hci_dev_unlock(hdev);
8141 return err;
8142 }
8143
8144 static void read_local_oob_ext_data_complete(struct hci_dev *hdev, void *data,
8145 int err)
8146 {
8147 const struct mgmt_cp_read_local_oob_ext_data *mgmt_cp;
8148 struct mgmt_rp_read_local_oob_ext_data *mgmt_rp;
8149 u8 *h192, *r192, *h256, *r256;
8150 struct mgmt_pending_cmd *cmd = data;
8151 struct sk_buff *skb = cmd->skb;
8152 u8 status = mgmt_status(err);
8153 u16 eir_len;
8154
8155 if (err == -ECANCELED ||
8156 cmd != pending_find(MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev))
8157 return;
8158
8159 if (!status) {
8160 if (!skb)
8161 status = MGMT_STATUS_FAILED;
8162 else if (IS_ERR(skb))
8163 status = mgmt_status(PTR_ERR(skb));
8164 else
8165 status = mgmt_status(skb->data[0]);
8166 }
8167
8168 bt_dev_dbg(hdev, "status %u", status);
8169
8170 mgmt_cp = cmd->param;
8171
8172 if (status) {
8173 status = mgmt_status(status);
8174 eir_len = 0;
8175
8176 h192 = NULL;
8177 r192 = NULL;
8178 h256 = NULL;
8179 r256 = NULL;
8180 } else if (!bredr_sc_enabled(hdev)) {
8181 struct hci_rp_read_local_oob_data *rp;
8182
8183 if (skb->len != sizeof(*rp)) {
8184 status = MGMT_STATUS_FAILED;
8185 eir_len = 0;
8186 } else {
8187 status = MGMT_STATUS_SUCCESS;
8188 rp = (void *)skb->data;
8189
8190 eir_len = 5 + 18 + 18;
8191 h192 = rp->hash;
8192 r192 = rp->rand;
8193 h256 = NULL;
8194 r256 = NULL;
8195 }
8196 } else {
8197 struct hci_rp_read_local_oob_ext_data *rp;
8198
8199 if (skb->len != sizeof(*rp)) {
8200 status = MGMT_STATUS_FAILED;
8201 eir_len = 0;
8202 } else {
8203 status = MGMT_STATUS_SUCCESS;
8204 rp = (void *)skb->data;
8205
8206 if (hci_dev_test_flag(hdev, HCI_SC_ONLY)) {
8207 eir_len = 5 + 18 + 18;
8208 h192 = NULL;
8209 r192 = NULL;
8210 } else {
8211 eir_len = 5 + 18 + 18 + 18 + 18;
8212 h192 = rp->hash192;
8213 r192 = rp->rand192;
8214 }
8215
8216 h256 = rp->hash256;
8217 r256 = rp->rand256;
8218 }
8219 }
8220
8221 mgmt_rp = kmalloc(sizeof(*mgmt_rp) + eir_len, GFP_KERNEL);
8222 if (!mgmt_rp)
8223 goto done;
8224
8225 if (eir_len == 0)
8226 goto send_rsp;
8227
8228 eir_len = eir_append_data(mgmt_rp->eir, 0, EIR_CLASS_OF_DEV,
8229 hdev->dev_class, 3);
8230
8231 if (h192 && r192) {
8232 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
8233 EIR_SSP_HASH_C192, h192, 16);
8234 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
8235 EIR_SSP_RAND_R192, r192, 16);
8236 }
8237
8238 if (h256 && r256) {
8239 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
8240 EIR_SSP_HASH_C256, h256, 16);
8241 eir_len = eir_append_data(mgmt_rp->eir, eir_len,
8242 EIR_SSP_RAND_R256, r256, 16);
8243 }
8244
8245 send_rsp:
8246 mgmt_rp->type = mgmt_cp->type;
8247 mgmt_rp->eir_len = cpu_to_le16(eir_len);
8248
8249 err = mgmt_cmd_complete(cmd->sk, hdev->id,
8250 MGMT_OP_READ_LOCAL_OOB_EXT_DATA, status,
8251 mgmt_rp, sizeof(*mgmt_rp) + eir_len);
8252 if (err < 0 || status)
8253 goto done;
8254
8255 hci_sock_set_flag(cmd->sk, HCI_MGMT_OOB_DATA_EVENTS);
8256
8257 err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
8258 mgmt_rp, sizeof(*mgmt_rp) + eir_len,
8259 HCI_MGMT_OOB_DATA_EVENTS, cmd->sk);
8260 done:
8261 if (skb && !IS_ERR(skb))
8262 kfree_skb(skb);
8263
8264 kfree(mgmt_rp);
8265 mgmt_pending_remove(cmd);
8266 }
8267
8268 static int read_local_ssp_oob_req(struct hci_dev *hdev, struct sock *sk,
8269 struct mgmt_cp_read_local_oob_ext_data *cp)
8270 {
8271 struct mgmt_pending_cmd *cmd;
8272 int err;
8273
8274 cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_EXT_DATA, hdev,
8275 cp, sizeof(*cp));
8276 if (!cmd)
8277 return -ENOMEM;
8278
8279 err = hci_cmd_sync_queue(hdev, read_local_oob_data_sync, cmd,
8280 read_local_oob_ext_data_complete);
8281
8282 if (err < 0) {
8283 mgmt_pending_remove(cmd);
8284 return err;
8285 }
8286
8287 return 0;
8288 }
8289
8290 static int read_local_oob_ext_data(struct sock *sk, struct hci_dev *hdev,
8291 void *data, u16 data_len)
8292 {
8293 struct mgmt_cp_read_local_oob_ext_data *cp = data;
8294 struct mgmt_rp_read_local_oob_ext_data *rp;
8295 size_t rp_len;
8296 u16 eir_len;
8297 u8 status, flags, role, addr[7], hash[16], rand[16];
8298 int err;
8299
8300 bt_dev_dbg(hdev, "sock %p", sk);
8301
8302 if (hdev_is_powered(hdev)) {
8303 switch (cp->type) {
8304 case BIT(BDADDR_BREDR):
8305 status = mgmt_bredr_support(hdev);
8306 if (status)
8307 eir_len = 0;
8308 else
8309 eir_len = 5;
8310 break;
8311 case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
8312 status = mgmt_le_support(hdev);
8313 if (status)
8314 eir_len = 0;
8315 else
8316 eir_len = 9 + 3 + 18 + 18 + 3;
8317 break;
8318 default:
8319 status = MGMT_STATUS_INVALID_PARAMS;
8320 eir_len = 0;
8321 break;
8322 }
8323 } else {
8324 status = MGMT_STATUS_NOT_POWERED;
8325 eir_len = 0;
8326 }
8327
8328 rp_len = sizeof(*rp) + eir_len;
8329 rp = kmalloc(rp_len, GFP_ATOMIC);
8330 if (!rp)
8331 return -ENOMEM;
8332
8333 if (!status && !lmp_ssp_capable(hdev)) {
8334 status = MGMT_STATUS_NOT_SUPPORTED;
8335 eir_len = 0;
8336 }
8337
8338 if (status)
8339 goto complete;
8340
8341 hci_dev_lock(hdev);
8342
8343 eir_len = 0;
8344 switch (cp->type) {
8345 case BIT(BDADDR_BREDR):
8346 if (hci_dev_test_flag(hdev, HCI_SSP_ENABLED)) {
8347 err = read_local_ssp_oob_req(hdev, sk, cp);
8348 hci_dev_unlock(hdev);
8349 if (!err)
8350 goto done;
8351
8352 status = MGMT_STATUS_FAILED;
8353 goto complete;
8354 } else {
8355 eir_len = eir_append_data(rp->eir, eir_len,
8356 EIR_CLASS_OF_DEV,
8357 hdev->dev_class, 3);
8358 }
8359 break;
8360 case (BIT(BDADDR_LE_PUBLIC) | BIT(BDADDR_LE_RANDOM)):
8361 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED) &&
8362 smp_generate_oob(hdev, hash, rand) < 0) {
8363 hci_dev_unlock(hdev);
8364 status = MGMT_STATUS_FAILED;
8365 goto complete;
8366 }
8367
8368 /* This should return the active RPA, but since the RPA
8369 * is only programmed on demand, it is really hard to fill
8370 * this in at the moment. For now disallow retrieving
8371 * local out-of-band data when privacy is in use.
8372 *
8373 * Returning the identity address will not help here since
8374 * pairing happens before the identity resolving key is
8375 * known and thus the connection establishment happens
8376 * based on the RPA and not the identity address.
8377 */
8378 if (hci_dev_test_flag(hdev, HCI_PRIVACY)) {
8379 hci_dev_unlock(hdev);
8380 status = MGMT_STATUS_REJECTED;
8381 goto complete;
8382 }
8383
8384 if (hci_dev_test_flag(hdev, HCI_FORCE_STATIC_ADDR) ||
8385 !bacmp(&hdev->bdaddr, BDADDR_ANY) ||
8386 (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED) &&
8387 bacmp(&hdev->static_addr, BDADDR_ANY))) {
8388 memcpy(addr, &hdev->static_addr, 6);
8389 addr[6] = 0x01;
8390 } else {
8391 memcpy(addr, &hdev->bdaddr, 6);
8392 addr[6] = 0x00;
8393 }
8394
8395 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_BDADDR,
8396 addr, sizeof(addr));
8397
8398 if (hci_dev_test_flag(hdev, HCI_ADVERTISING))
8399 role = 0x02;
8400 else
8401 role = 0x01;
8402
8403 eir_len = eir_append_data(rp->eir, eir_len, EIR_LE_ROLE,
8404 &role, sizeof(role));
8405
8406 if (hci_dev_test_flag(hdev, HCI_SC_ENABLED)) {
8407 eir_len = eir_append_data(rp->eir, eir_len,
8408 EIR_LE_SC_CONFIRM,
8409 hash, sizeof(hash));
8410
8411 eir_len = eir_append_data(rp->eir, eir_len,
8412 EIR_LE_SC_RANDOM,
8413 rand, sizeof(rand));
8414 }
8415
8416 flags = mgmt_get_adv_discov_flags(hdev);
8417
8418 if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED))
8419 flags |= LE_AD_NO_BREDR;
8420
8421 eir_len = eir_append_data(rp->eir, eir_len, EIR_FLAGS,
8422 &flags, sizeof(flags));
8423 break;
8424 }
8425
8426 hci_dev_unlock(hdev);
8427
8428 hci_sock_set_flag(sk, HCI_MGMT_OOB_DATA_EVENTS);
8429
8430 status = MGMT_STATUS_SUCCESS;
8431
8432 complete:
8433 rp->type = cp->type;
8434 rp->eir_len = cpu_to_le16(eir_len);
8435
8436 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_EXT_DATA,
8437 status, rp, sizeof(*rp) + eir_len);
8438 if (err < 0 || status)
8439 goto done;
8440
8441 err = mgmt_limited_event(MGMT_EV_LOCAL_OOB_DATA_UPDATED, hdev,
8442 rp, sizeof(*rp) + eir_len,
8443 HCI_MGMT_OOB_DATA_EVENTS, sk);
8444
8445 done:
8446 kfree(rp);
8447
8448 return err;
8449 }
8450
8451 static u32 get_supported_adv_flags(struct hci_dev *hdev)
8452 {
8453 u32 flags = 0;
8454
8455 flags |= MGMT_ADV_FLAG_CONNECTABLE;
8456 flags |= MGMT_ADV_FLAG_DISCOV;
8457 flags |= MGMT_ADV_FLAG_LIMITED_DISCOV;
8458 flags |= MGMT_ADV_FLAG_MANAGED_FLAGS;
8459 flags |= MGMT_ADV_FLAG_APPEARANCE;
8460 flags |= MGMT_ADV_FLAG_LOCAL_NAME;
8461 flags |= MGMT_ADV_PARAM_DURATION;
8462 flags |= MGMT_ADV_PARAM_TIMEOUT;
8463 flags |= MGMT_ADV_PARAM_INTERVALS;
8464 flags |= MGMT_ADV_PARAM_TX_POWER;
8465 flags |= MGMT_ADV_PARAM_SCAN_RSP;
8466
8467 /* In extended adv TX_POWER returned from Set Adv Param
8468 * will be always valid.
8469 */
8470 if (hdev->adv_tx_power != HCI_TX_POWER_INVALID || ext_adv_capable(hdev))
8471 flags |= MGMT_ADV_FLAG_TX_POWER;
8472
8473 if (ext_adv_capable(hdev)) {
8474 flags |= MGMT_ADV_FLAG_SEC_1M;
8475 flags |= MGMT_ADV_FLAG_HW_OFFLOAD;
8476 flags |= MGMT_ADV_FLAG_CAN_SET_TX_POWER;
8477
8478 if (le_2m_capable(hdev))
8479 flags |= MGMT_ADV_FLAG_SEC_2M;
8480
8481 if (le_coded_capable(hdev))
8482 flags |= MGMT_ADV_FLAG_SEC_CODED;
8483 }
8484
8485 return flags;
8486 }
8487
8488 static int read_adv_features(struct sock *sk, struct hci_dev *hdev,
8489 void *data, u16 data_len)
8490 {
8491 struct mgmt_rp_read_adv_features *rp;
8492 size_t rp_len;
8493 int err;
8494 struct adv_info *adv_instance;
8495 u32 supported_flags;
8496 u8 *instance;
8497
8498 bt_dev_dbg(hdev, "sock %p", sk);
8499
8500 if (!lmp_le_capable(hdev))
8501 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
8502 MGMT_STATUS_REJECTED);
8503
8504 hci_dev_lock(hdev);
8505
8506 rp_len = sizeof(*rp) + hdev->adv_instance_cnt;
8507 rp = kmalloc(rp_len, GFP_ATOMIC);
8508 if (!rp) {
8509 hci_dev_unlock(hdev);
8510 return -ENOMEM;
8511 }
8512
8513 supported_flags = get_supported_adv_flags(hdev);
8514
8515 rp->supported_flags = cpu_to_le32(supported_flags);
8516 rp->max_adv_data_len = max_adv_len(hdev);
8517 rp->max_scan_rsp_len = max_adv_len(hdev);
8518 rp->max_instances = hdev->le_num_of_adv_sets;
8519 rp->num_instances = hdev->adv_instance_cnt;
8520
8521 instance = rp->instance;
8522 list_for_each_entry(adv_instance, &hdev->adv_instances, list) {
8523 /* Only instances 1-le_num_of_adv_sets are externally visible */
8524 if (adv_instance->instance <= hdev->adv_instance_cnt) {
8525 *instance = adv_instance->instance;
8526 instance++;
8527 } else {
8528 rp->num_instances--;
8529 rp_len--;
8530 }
8531 }
8532
8533 hci_dev_unlock(hdev);
8534
8535 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_READ_ADV_FEATURES,
8536 MGMT_STATUS_SUCCESS, rp, rp_len);
8537
8538 kfree(rp);
8539
8540 return err;
8541 }
8542
8543 static u8 calculate_name_len(struct hci_dev *hdev)
8544 {
8545 u8 buf[HCI_MAX_SHORT_NAME_LENGTH + 2]; /* len + type + name */
8546
8547 return eir_append_local_name(hdev, buf, 0);
8548 }
8549
8550 static u8 tlv_data_max_len(struct hci_dev *hdev, u32 adv_flags,
8551 bool is_adv_data)
8552 {
8553 u8 max_len = max_adv_len(hdev);
8554
8555 if (is_adv_data) {
8556 if (adv_flags & (MGMT_ADV_FLAG_DISCOV |
8557 MGMT_ADV_FLAG_LIMITED_DISCOV |
8558 MGMT_ADV_FLAG_MANAGED_FLAGS))
8559 max_len -= 3;
8560
8561 if (adv_flags & MGMT_ADV_FLAG_TX_POWER)
8562 max_len -= 3;
8563 } else {
8564 if (adv_flags & MGMT_ADV_FLAG_LOCAL_NAME)
8565 max_len -= calculate_name_len(hdev);
8566
8567 if (adv_flags & (MGMT_ADV_FLAG_APPEARANCE))
8568 max_len -= 4;
8569 }
8570
8571 return max_len;
8572 }
8573
8574 static bool flags_managed(u32 adv_flags)
8575 {
8576 return adv_flags & (MGMT_ADV_FLAG_DISCOV |
8577 MGMT_ADV_FLAG_LIMITED_DISCOV |
8578 MGMT_ADV_FLAG_MANAGED_FLAGS);
8579 }
8580
8581 static bool tx_power_managed(u32 adv_flags)
8582 {
8583 return adv_flags & MGMT_ADV_FLAG_TX_POWER;
8584 }
8585
8586 static bool name_managed(u32 adv_flags)
8587 {
8588 return adv_flags & MGMT_ADV_FLAG_LOCAL_NAME;
8589 }
8590
8591 static bool appearance_managed(u32 adv_flags)
8592 {
8593 return adv_flags & MGMT_ADV_FLAG_APPEARANCE;
8594 }
8595
8596 static bool tlv_data_is_valid(struct hci_dev *hdev, u32 adv_flags, u8 *data,
8597 u8 len, bool is_adv_data)
8598 {
8599 int i, cur_len;
8600 u8 max_len;
8601
8602 max_len = tlv_data_max_len(hdev, adv_flags, is_adv_data);
8603
8604 if (len > max_len)
8605 return false;
8606
8607 /* Make sure that the data is correctly formatted. */
8608 for (i = 0; i < len; i += (cur_len + 1)) {
8609 cur_len = data[i];
8610
8611 if (!cur_len)
8612 continue;
8613
8614 if (data[i + 1] == EIR_FLAGS &&
8615 (!is_adv_data || flags_managed(adv_flags)))
8616 return false;
8617
8618 if (data[i + 1] == EIR_TX_POWER && tx_power_managed(adv_flags))
8619 return false;
8620
8621 if (data[i + 1] == EIR_NAME_COMPLETE && name_managed(adv_flags))
8622 return false;
8623
8624 if (data[i + 1] == EIR_NAME_SHORT && name_managed(adv_flags))
8625 return false;
8626
8627 if (data[i + 1] == EIR_APPEARANCE &&
8628 appearance_managed(adv_flags))
8629 return false;
8630
8631 /* If the current field length would exceed the total data
8632 * length, then it's invalid.
8633 */
8634 if (i + cur_len >= len)
8635 return false;
8636 }
8637
8638 return true;
8639 }
8640
8641 static bool requested_adv_flags_are_valid(struct hci_dev *hdev, u32 adv_flags)
8642 {
8643 u32 supported_flags, phy_flags;
8644
8645 /* The current implementation only supports a subset of the specified
8646 * flags. Also need to check mutual exclusiveness of sec flags.
8647 */
8648 supported_flags = get_supported_adv_flags(hdev);
8649 phy_flags = adv_flags & MGMT_ADV_FLAG_SEC_MASK;
8650 if (adv_flags & ~supported_flags ||
8651 ((phy_flags && (phy_flags ^ (phy_flags & -phy_flags)))))
8652 return false;
8653
8654 return true;
8655 }
8656
8657 static bool adv_busy(struct hci_dev *hdev)
8658 {
8659 return pending_find(MGMT_OP_SET_LE, hdev);
8660 }
8661
8662 static void add_adv_complete(struct hci_dev *hdev, struct sock *sk, u8 instance,
8663 int err)
8664 {
8665 struct adv_info *adv, *n;
8666
8667 bt_dev_dbg(hdev, "err %d", err);
8668
8669 hci_dev_lock(hdev);
8670
8671 list_for_each_entry_safe(adv, n, &hdev->adv_instances, list) {
8672 u8 instance;
8673
8674 if (!adv->pending)
8675 continue;
8676
8677 if (!err) {
8678 adv->pending = false;
8679 continue;
8680 }
8681
8682 instance = adv->instance;
8683
8684 if (hdev->cur_adv_instance == instance)
8685 cancel_adv_timeout(hdev);
8686
8687 hci_remove_adv_instance(hdev, instance);
8688 mgmt_advertising_removed(sk, hdev, instance);
8689 }
8690
8691 hci_dev_unlock(hdev);
8692 }
8693
8694 static void add_advertising_complete(struct hci_dev *hdev, void *data, int err)
8695 {
8696 struct mgmt_pending_cmd *cmd = data;
8697 struct mgmt_cp_add_advertising *cp = cmd->param;
8698 struct mgmt_rp_add_advertising rp;
8699
8700 memset(&rp, 0, sizeof(rp));
8701
8702 rp.instance = cp->instance;
8703
8704 if (err)
8705 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
8706 mgmt_status(err));
8707 else
8708 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
8709 mgmt_status(err), &rp, sizeof(rp));
8710
8711 add_adv_complete(hdev, cmd->sk, cp->instance, err);
8712
8713 mgmt_pending_free(cmd);
8714 }
8715
8716 static int add_advertising_sync(struct hci_dev *hdev, void *data)
8717 {
8718 struct mgmt_pending_cmd *cmd = data;
8719 struct mgmt_cp_add_advertising *cp = cmd->param;
8720
8721 return hci_schedule_adv_instance_sync(hdev, cp->instance, true);
8722 }
8723
8724 static int add_advertising(struct sock *sk, struct hci_dev *hdev,
8725 void *data, u16 data_len)
8726 {
8727 struct mgmt_cp_add_advertising *cp = data;
8728 struct mgmt_rp_add_advertising rp;
8729 u32 flags;
8730 u8 status;
8731 u16 timeout, duration;
8732 unsigned int prev_instance_cnt;
8733 u8 schedule_instance = 0;
8734 struct adv_info *adv, *next_instance;
8735 int err;
8736 struct mgmt_pending_cmd *cmd;
8737
8738 bt_dev_dbg(hdev, "sock %p", sk);
8739
8740 status = mgmt_le_support(hdev);
8741 if (status)
8742 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8743 status);
8744
8745 if (cp->instance < 1 || cp->instance > hdev->le_num_of_adv_sets)
8746 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8747 MGMT_STATUS_INVALID_PARAMS);
8748
8749 if (data_len != sizeof(*cp) + cp->adv_data_len + cp->scan_rsp_len)
8750 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8751 MGMT_STATUS_INVALID_PARAMS);
8752
8753 flags = __le32_to_cpu(cp->flags);
8754 timeout = __le16_to_cpu(cp->timeout);
8755 duration = __le16_to_cpu(cp->duration);
8756
8757 if (!requested_adv_flags_are_valid(hdev, flags))
8758 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8759 MGMT_STATUS_INVALID_PARAMS);
8760
8761 hci_dev_lock(hdev);
8762
8763 if (timeout && !hdev_is_powered(hdev)) {
8764 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8765 MGMT_STATUS_REJECTED);
8766 goto unlock;
8767 }
8768
8769 if (adv_busy(hdev)) {
8770 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8771 MGMT_STATUS_BUSY);
8772 goto unlock;
8773 }
8774
8775 if (!tlv_data_is_valid(hdev, flags, cp->data, cp->adv_data_len, true) ||
8776 !tlv_data_is_valid(hdev, flags, cp->data + cp->adv_data_len,
8777 cp->scan_rsp_len, false)) {
8778 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8779 MGMT_STATUS_INVALID_PARAMS);
8780 goto unlock;
8781 }
8782
8783 prev_instance_cnt = hdev->adv_instance_cnt;
8784
8785 adv = hci_add_adv_instance(hdev, cp->instance, flags,
8786 cp->adv_data_len, cp->data,
8787 cp->scan_rsp_len,
8788 cp->data + cp->adv_data_len,
8789 timeout, duration,
8790 HCI_ADV_TX_POWER_NO_PREFERENCE,
8791 hdev->le_adv_min_interval,
8792 hdev->le_adv_max_interval, 0);
8793 if (IS_ERR(adv)) {
8794 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8795 MGMT_STATUS_FAILED);
8796 goto unlock;
8797 }
8798
8799 /* Only trigger an advertising added event if a new instance was
8800 * actually added.
8801 */
8802 if (hdev->adv_instance_cnt > prev_instance_cnt)
8803 mgmt_advertising_added(sk, hdev, cp->instance);
8804
8805 if (hdev->cur_adv_instance == cp->instance) {
8806 /* If the currently advertised instance is being changed then
8807 * cancel the current advertising and schedule the next
8808 * instance. If there is only one instance then the overridden
8809 * advertising data will be visible right away.
8810 */
8811 cancel_adv_timeout(hdev);
8812
8813 next_instance = hci_get_next_instance(hdev, cp->instance);
8814 if (next_instance)
8815 schedule_instance = next_instance->instance;
8816 } else if (!hdev->adv_instance_timeout) {
8817 /* Immediately advertise the new instance if no other
8818 * instance is currently being advertised.
8819 */
8820 schedule_instance = cp->instance;
8821 }
8822
8823 /* If the HCI_ADVERTISING flag is set or the device isn't powered or
8824 * there is no instance to be advertised then we have no HCI
8825 * communication to make. Simply return.
8826 */
8827 if (!hdev_is_powered(hdev) ||
8828 hci_dev_test_flag(hdev, HCI_ADVERTISING) ||
8829 !schedule_instance) {
8830 rp.instance = cp->instance;
8831 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_ADVERTISING,
8832 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
8833 goto unlock;
8834 }
8835
8836 /* We're good to go, update advertising data, parameters, and start
8837 * advertising.
8838 */
8839 cmd = mgmt_pending_new(sk, MGMT_OP_ADD_ADVERTISING, hdev, data,
8840 data_len);
8841 if (!cmd) {
8842 err = -ENOMEM;
8843 goto unlock;
8844 }
8845
8846 cp->instance = schedule_instance;
8847
8848 err = hci_cmd_sync_queue(hdev, add_advertising_sync, cmd,
8849 add_advertising_complete);
8850 if (err < 0)
8851 mgmt_pending_free(cmd);
8852
8853 unlock:
8854 hci_dev_unlock(hdev);
8855
8856 return err;
8857 }
8858
8859 static void add_ext_adv_params_complete(struct hci_dev *hdev, void *data,
8860 int err)
8861 {
8862 struct mgmt_pending_cmd *cmd = data;
8863 struct mgmt_cp_add_ext_adv_params *cp = cmd->param;
8864 struct mgmt_rp_add_ext_adv_params rp;
8865 struct adv_info *adv;
8866 u32 flags;
8867
8868 BT_DBG("%s", hdev->name);
8869
8870 hci_dev_lock(hdev);
8871
8872 adv = hci_find_adv_instance(hdev, cp->instance);
8873 if (!adv)
8874 goto unlock;
8875
8876 rp.instance = cp->instance;
8877 rp.tx_power = adv->tx_power;
8878
8879 /* While we're at it, inform userspace of the available space for this
8880 * advertisement, given the flags that will be used.
8881 */
8882 flags = __le32_to_cpu(cp->flags);
8883 rp.max_adv_data_len = tlv_data_max_len(hdev, flags, true);
8884 rp.max_scan_rsp_len = tlv_data_max_len(hdev, flags, false);
8885
8886 if (err) {
8887 /* If this advertisement was previously advertising and we
8888 * failed to update it, we signal that it has been removed and
8889 * delete its structure
8890 */
8891 if (!adv->pending)
8892 mgmt_advertising_removed(cmd->sk, hdev, cp->instance);
8893
8894 hci_remove_adv_instance(hdev, cp->instance);
8895
8896 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
8897 mgmt_status(err));
8898 } else {
8899 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
8900 mgmt_status(err), &rp, sizeof(rp));
8901 }
8902
8903 unlock:
8904 mgmt_pending_free(cmd);
8905
8906 hci_dev_unlock(hdev);
8907 }
8908
8909 static int add_ext_adv_params_sync(struct hci_dev *hdev, void *data)
8910 {
8911 struct mgmt_pending_cmd *cmd = data;
8912 struct mgmt_cp_add_ext_adv_params *cp = cmd->param;
8913
8914 return hci_setup_ext_adv_instance_sync(hdev, cp->instance);
8915 }
8916
8917 static int add_ext_adv_params(struct sock *sk, struct hci_dev *hdev,
8918 void *data, u16 data_len)
8919 {
8920 struct mgmt_cp_add_ext_adv_params *cp = data;
8921 struct mgmt_rp_add_ext_adv_params rp;
8922 struct mgmt_pending_cmd *cmd = NULL;
8923 struct adv_info *adv;
8924 u32 flags, min_interval, max_interval;
8925 u16 timeout, duration;
8926 u8 status;
8927 s8 tx_power;
8928 int err;
8929
8930 BT_DBG("%s", hdev->name);
8931
8932 status = mgmt_le_support(hdev);
8933 if (status)
8934 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,
8935 status);
8936
8937 if (cp->instance < 1 || cp->instance > hdev->le_num_of_adv_sets)
8938 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,
8939 MGMT_STATUS_INVALID_PARAMS);
8940
8941 /* The purpose of breaking add_advertising into two separate MGMT calls
8942 * for params and data is to allow more parameters to be added to this
8943 * structure in the future. For this reason, we verify that we have the
8944 * bare minimum structure we know of when the interface was defined. Any
8945 * extra parameters we don't know about will be ignored in this request.
8946 */
8947 if (data_len < MGMT_ADD_EXT_ADV_PARAMS_MIN_SIZE)
8948 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,
8949 MGMT_STATUS_INVALID_PARAMS);
8950
8951 flags = __le32_to_cpu(cp->flags);
8952
8953 if (!requested_adv_flags_are_valid(hdev, flags))
8954 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,
8955 MGMT_STATUS_INVALID_PARAMS);
8956
8957 hci_dev_lock(hdev);
8958
8959 /* In new interface, we require that we are powered to register */
8960 if (!hdev_is_powered(hdev)) {
8961 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,
8962 MGMT_STATUS_REJECTED);
8963 goto unlock;
8964 }
8965
8966 if (adv_busy(hdev)) {
8967 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,
8968 MGMT_STATUS_BUSY);
8969 goto unlock;
8970 }
8971
8972 /* Parse defined parameters from request, use defaults otherwise */
8973 timeout = (flags & MGMT_ADV_PARAM_TIMEOUT) ?
8974 __le16_to_cpu(cp->timeout) : 0;
8975
8976 duration = (flags & MGMT_ADV_PARAM_DURATION) ?
8977 __le16_to_cpu(cp->duration) :
8978 hdev->def_multi_adv_rotation_duration;
8979
8980 min_interval = (flags & MGMT_ADV_PARAM_INTERVALS) ?
8981 __le32_to_cpu(cp->min_interval) :
8982 hdev->le_adv_min_interval;
8983
8984 max_interval = (flags & MGMT_ADV_PARAM_INTERVALS) ?
8985 __le32_to_cpu(cp->max_interval) :
8986 hdev->le_adv_max_interval;
8987
8988 tx_power = (flags & MGMT_ADV_PARAM_TX_POWER) ?
8989 cp->tx_power :
8990 HCI_ADV_TX_POWER_NO_PREFERENCE;
8991
8992 /* Create advertising instance with no advertising or response data */
8993 adv = hci_add_adv_instance(hdev, cp->instance, flags, 0, NULL, 0, NULL,
8994 timeout, duration, tx_power, min_interval,
8995 max_interval, 0);
8996
8997 if (IS_ERR(adv)) {
8998 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_PARAMS,
8999 MGMT_STATUS_FAILED);
9000 goto unlock;
9001 }
9002
9003 /* Submit request for advertising params if ext adv available */
9004 if (ext_adv_capable(hdev)) {
9005 cmd = mgmt_pending_new(sk, MGMT_OP_ADD_EXT_ADV_PARAMS, hdev,
9006 data, data_len);
9007 if (!cmd) {
9008 err = -ENOMEM;
9009 hci_remove_adv_instance(hdev, cp->instance);
9010 goto unlock;
9011 }
9012
9013 err = hci_cmd_sync_queue(hdev, add_ext_adv_params_sync, cmd,
9014 add_ext_adv_params_complete);
9015 if (err < 0)
9016 mgmt_pending_free(cmd);
9017 } else {
9018 rp.instance = cp->instance;
9019 rp.tx_power = HCI_ADV_TX_POWER_NO_PREFERENCE;
9020 rp.max_adv_data_len = tlv_data_max_len(hdev, flags, true);
9021 rp.max_scan_rsp_len = tlv_data_max_len(hdev, flags, false);
9022 err = mgmt_cmd_complete(sk, hdev->id,
9023 MGMT_OP_ADD_EXT_ADV_PARAMS,
9024 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
9025 }
9026
9027 unlock:
9028 hci_dev_unlock(hdev);
9029
9030 return err;
9031 }
9032
9033 static void add_ext_adv_data_complete(struct hci_dev *hdev, void *data, int err)
9034 {
9035 struct mgmt_pending_cmd *cmd = data;
9036 struct mgmt_cp_add_ext_adv_data *cp = cmd->param;
9037 struct mgmt_rp_add_advertising rp;
9038
9039 add_adv_complete(hdev, cmd->sk, cp->instance, err);
9040
9041 memset(&rp, 0, sizeof(rp));
9042
9043 rp.instance = cp->instance;
9044
9045 if (err)
9046 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
9047 mgmt_status(err));
9048 else
9049 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
9050 mgmt_status(err), &rp, sizeof(rp));
9051
9052 mgmt_pending_free(cmd);
9053 }
9054
9055 static int add_ext_adv_data_sync(struct hci_dev *hdev, void *data)
9056 {
9057 struct mgmt_pending_cmd *cmd = data;
9058 struct mgmt_cp_add_ext_adv_data *cp = cmd->param;
9059 int err;
9060
9061 if (ext_adv_capable(hdev)) {
9062 err = hci_update_adv_data_sync(hdev, cp->instance);
9063 if (err)
9064 return err;
9065
9066 err = hci_update_scan_rsp_data_sync(hdev, cp->instance);
9067 if (err)
9068 return err;
9069
9070 return hci_enable_ext_advertising_sync(hdev, cp->instance);
9071 }
9072
9073 return hci_schedule_adv_instance_sync(hdev, cp->instance, true);
9074 }
9075
9076 static int add_ext_adv_data(struct sock *sk, struct hci_dev *hdev, void *data,
9077 u16 data_len)
9078 {
9079 struct mgmt_cp_add_ext_adv_data *cp = data;
9080 struct mgmt_rp_add_ext_adv_data rp;
9081 u8 schedule_instance = 0;
9082 struct adv_info *next_instance;
9083 struct adv_info *adv_instance;
9084 int err = 0;
9085 struct mgmt_pending_cmd *cmd;
9086
9087 BT_DBG("%s", hdev->name);
9088
9089 hci_dev_lock(hdev);
9090
9091 adv_instance = hci_find_adv_instance(hdev, cp->instance);
9092
9093 if (!adv_instance) {
9094 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_DATA,
9095 MGMT_STATUS_INVALID_PARAMS);
9096 goto unlock;
9097 }
9098
9099 /* In new interface, we require that we are powered to register */
9100 if (!hdev_is_powered(hdev)) {
9101 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_DATA,
9102 MGMT_STATUS_REJECTED);
9103 goto clear_new_instance;
9104 }
9105
9106 if (adv_busy(hdev)) {
9107 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_DATA,
9108 MGMT_STATUS_BUSY);
9109 goto clear_new_instance;
9110 }
9111
9112 /* Validate new data */
9113 if (!tlv_data_is_valid(hdev, adv_instance->flags, cp->data,
9114 cp->adv_data_len, true) ||
9115 !tlv_data_is_valid(hdev, adv_instance->flags, cp->data +
9116 cp->adv_data_len, cp->scan_rsp_len, false)) {
9117 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_DATA,
9118 MGMT_STATUS_INVALID_PARAMS);
9119 goto clear_new_instance;
9120 }
9121
9122 /* Set the data in the advertising instance */
9123 hci_set_adv_instance_data(hdev, cp->instance, cp->adv_data_len,
9124 cp->data, cp->scan_rsp_len,
9125 cp->data + cp->adv_data_len);
9126
9127 /* If using software rotation, determine next instance to use */
9128 if (hdev->cur_adv_instance == cp->instance) {
9129 /* If the currently advertised instance is being changed
9130 * then cancel the current advertising and schedule the
9131 * next instance. If there is only one instance then the
9132 * overridden advertising data will be visible right
9133 * away
9134 */
9135 cancel_adv_timeout(hdev);
9136
9137 next_instance = hci_get_next_instance(hdev, cp->instance);
9138 if (next_instance)
9139 schedule_instance = next_instance->instance;
9140 } else if (!hdev->adv_instance_timeout) {
9141 /* Immediately advertise the new instance if no other
9142 * instance is currently being advertised.
9143 */
9144 schedule_instance = cp->instance;
9145 }
9146
9147 /* If the HCI_ADVERTISING flag is set or there is no instance to
9148 * be advertised then we have no HCI communication to make.
9149 * Simply return.
9150 */
9151 if (hci_dev_test_flag(hdev, HCI_ADVERTISING) || !schedule_instance) {
9152 if (adv_instance->pending) {
9153 mgmt_advertising_added(sk, hdev, cp->instance);
9154 adv_instance->pending = false;
9155 }
9156 rp.instance = cp->instance;
9157 err = mgmt_cmd_complete(sk, hdev->id, MGMT_OP_ADD_EXT_ADV_DATA,
9158 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
9159 goto unlock;
9160 }
9161
9162 cmd = mgmt_pending_new(sk, MGMT_OP_ADD_EXT_ADV_DATA, hdev, data,
9163 data_len);
9164 if (!cmd) {
9165 err = -ENOMEM;
9166 goto clear_new_instance;
9167 }
9168
9169 err = hci_cmd_sync_queue(hdev, add_ext_adv_data_sync, cmd,
9170 add_ext_adv_data_complete);
9171 if (err < 0) {
9172 mgmt_pending_free(cmd);
9173 goto clear_new_instance;
9174 }
9175
9176 /* We were successful in updating data, so trigger advertising_added
9177 * event if this is an instance that wasn't previously advertising. If
9178 * a failure occurs in the requests we initiated, we will remove the
9179 * instance again in add_advertising_complete
9180 */
9181 if (adv_instance->pending)
9182 mgmt_advertising_added(sk, hdev, cp->instance);
9183
9184 goto unlock;
9185
9186 clear_new_instance:
9187 hci_remove_adv_instance(hdev, cp->instance);
9188
9189 unlock:
9190 hci_dev_unlock(hdev);
9191
9192 return err;
9193 }
9194
9195 static void remove_advertising_complete(struct hci_dev *hdev, void *data,
9196 int err)
9197 {
9198 struct mgmt_pending_cmd *cmd = data;
9199 struct mgmt_cp_remove_advertising *cp = cmd->param;
9200 struct mgmt_rp_remove_advertising rp;
9201
9202 bt_dev_dbg(hdev, "err %d", err);
9203
9204 memset(&rp, 0, sizeof(rp));
9205 rp.instance = cp->instance;
9206
9207 if (err)
9208 mgmt_cmd_status(cmd->sk, cmd->index, cmd->opcode,
9209 mgmt_status(err));
9210 else
9211 mgmt_cmd_complete(cmd->sk, cmd->index, cmd->opcode,
9212 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
9213
9214 mgmt_pending_free(cmd);
9215 }
9216
9217 static int remove_advertising_sync(struct hci_dev *hdev, void *data)
9218 {
9219 struct mgmt_pending_cmd *cmd = data;
9220 struct mgmt_cp_remove_advertising *cp = cmd->param;
9221 int err;
9222
9223 err = hci_remove_advertising_sync(hdev, cmd->sk, cp->instance, true);
9224 if (err)
9225 return err;
9226
9227 if (list_empty(&hdev->adv_instances))
9228 err = hci_disable_advertising_sync(hdev);
9229
9230 return err;
9231 }
9232
9233 static int remove_advertising(struct sock *sk, struct hci_dev *hdev,
9234 void *data, u16 data_len)
9235 {
9236 struct mgmt_cp_remove_advertising *cp = data;
9237 struct mgmt_pending_cmd *cmd;
9238 int err;
9239
9240 bt_dev_dbg(hdev, "sock %p", sk);
9241
9242 hci_dev_lock(hdev);
9243
9244 if (cp->instance && !hci_find_adv_instance(hdev, cp->instance)) {
9245 err = mgmt_cmd_status(sk, hdev->id,
9246 MGMT_OP_REMOVE_ADVERTISING,
9247 MGMT_STATUS_INVALID_PARAMS);
9248 goto unlock;
9249 }
9250
9251 if (pending_find(MGMT_OP_SET_LE, hdev)) {
9252 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
9253 MGMT_STATUS_BUSY);
9254 goto unlock;
9255 }
9256
9257 if (list_empty(&hdev->adv_instances)) {
9258 err = mgmt_cmd_status(sk, hdev->id, MGMT_OP_REMOVE_ADVERTISING,
9259 MGMT_STATUS_INVALID_PARAMS);
9260 goto unlock;
9261 }
9262
9263 cmd = mgmt_pending_new(sk, MGMT_OP_REMOVE_ADVERTISING, hdev, data,
9264 data_len);
9265 if (!cmd) {
9266 err = -ENOMEM;
9267 goto unlock;
9268 }
9269
9270 err = hci_cmd_sync_queue(hdev, remove_advertising_sync, cmd,
9271 remove_advertising_complete);
9272 if (err < 0)
9273 mgmt_pending_free(cmd);
9274
9275 unlock:
9276 hci_dev_unlock(hdev);
9277
9278 return err;
9279 }
9280
9281 static int get_adv_size_info(struct sock *sk, struct hci_dev *hdev,
9282 void *data, u16 data_len)
9283 {
9284 struct mgmt_cp_get_adv_size_info *cp = data;
9285 struct mgmt_rp_get_adv_size_info rp;
9286 u32 flags, supported_flags;
9287
9288 bt_dev_dbg(hdev, "sock %p", sk);
9289
9290 if (!lmp_le_capable(hdev))
9291 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO,
9292 MGMT_STATUS_REJECTED);
9293
9294 if (cp->instance < 1 || cp->instance > hdev->le_num_of_adv_sets)
9295 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO,
9296 MGMT_STATUS_INVALID_PARAMS);
9297
9298 flags = __le32_to_cpu(cp->flags);
9299
9300 /* The current implementation only supports a subset of the specified
9301 * flags.
9302 */
9303 supported_flags = get_supported_adv_flags(hdev);
9304 if (flags & ~supported_flags)
9305 return mgmt_cmd_status(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO,
9306 MGMT_STATUS_INVALID_PARAMS);
9307
9308 rp.instance = cp->instance;
9309 rp.flags = cp->flags;
9310 rp.max_adv_data_len = tlv_data_max_len(hdev, flags, true);
9311 rp.max_scan_rsp_len = tlv_data_max_len(hdev, flags, false);
9312
9313 return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_ADV_SIZE_INFO,
9314 MGMT_STATUS_SUCCESS, &rp, sizeof(rp));
9315 }
9316
9317 static const struct hci_mgmt_handler mgmt_handlers[] = {
9318 { NULL }, /* 0x0000 (no command) */
9319 { read_version, MGMT_READ_VERSION_SIZE,
9320 HCI_MGMT_NO_HDEV |
9321 HCI_MGMT_UNTRUSTED },
9322 { read_commands, MGMT_READ_COMMANDS_SIZE,
9323 HCI_MGMT_NO_HDEV |
9324 HCI_MGMT_UNTRUSTED },
9325 { read_index_list, MGMT_READ_INDEX_LIST_SIZE,
9326 HCI_MGMT_NO_HDEV |
9327 HCI_MGMT_UNTRUSTED },
9328 { read_controller_info, MGMT_READ_INFO_SIZE,
9329 HCI_MGMT_UNTRUSTED },
9330 { set_powered, MGMT_SETTING_SIZE },
9331 { set_discoverable, MGMT_SET_DISCOVERABLE_SIZE },
9332 { set_connectable, MGMT_SETTING_SIZE },
9333 { set_fast_connectable, MGMT_SETTING_SIZE },
9334 { set_bondable, MGMT_SETTING_SIZE },
9335 { set_link_security, MGMT_SETTING_SIZE },
9336 { set_ssp, MGMT_SETTING_SIZE },
9337 { set_hs, MGMT_SETTING_SIZE },
9338 { set_le, MGMT_SETTING_SIZE },
9339 { set_dev_class, MGMT_SET_DEV_CLASS_SIZE },
9340 { set_local_name, MGMT_SET_LOCAL_NAME_SIZE },
9341 { add_uuid, MGMT_ADD_UUID_SIZE },
9342 { remove_uuid, MGMT_REMOVE_UUID_SIZE },
9343 { load_link_keys, MGMT_LOAD_LINK_KEYS_SIZE,
9344 HCI_MGMT_VAR_LEN },
9345 { load_long_term_keys, MGMT_LOAD_LONG_TERM_KEYS_SIZE,
9346 HCI_MGMT_VAR_LEN },
9347 { disconnect, MGMT_DISCONNECT_SIZE },
9348 { get_connections, MGMT_GET_CONNECTIONS_SIZE },
9349 { pin_code_reply, MGMT_PIN_CODE_REPLY_SIZE },
9350 { pin_code_neg_reply, MGMT_PIN_CODE_NEG_REPLY_SIZE },
9351 { set_io_capability, MGMT_SET_IO_CAPABILITY_SIZE },
9352 { pair_device, MGMT_PAIR_DEVICE_SIZE },
9353 { cancel_pair_device, MGMT_CANCEL_PAIR_DEVICE_SIZE },
9354 { unpair_device, MGMT_UNPAIR_DEVICE_SIZE },
9355 { user_confirm_reply, MGMT_USER_CONFIRM_REPLY_SIZE },
9356 { user_confirm_neg_reply, MGMT_USER_CONFIRM_NEG_REPLY_SIZE },
9357 { user_passkey_reply, MGMT_USER_PASSKEY_REPLY_SIZE },
9358 { user_passkey_neg_reply, MGMT_USER_PASSKEY_NEG_REPLY_SIZE },
9359 { read_local_oob_data, MGMT_READ_LOCAL_OOB_DATA_SIZE },
9360 { add_remote_oob_data, MGMT_ADD_REMOTE_OOB_DATA_SIZE,
9361 HCI_MGMT_VAR_LEN },
9362 { remove_remote_oob_data, MGMT_REMOVE_REMOTE_OOB_DATA_SIZE },
9363 { start_discovery, MGMT_START_DISCOVERY_SIZE },
9364 { stop_discovery, MGMT_STOP_DISCOVERY_SIZE },
9365 { confirm_name, MGMT_CONFIRM_NAME_SIZE },
9366 { block_device, MGMT_BLOCK_DEVICE_SIZE },
9367 { unblock_device, MGMT_UNBLOCK_DEVICE_SIZE },
9368 { set_device_id, MGMT_SET_DEVICE_ID_SIZE },
9369 { set_advertising, MGMT_SETTING_SIZE },
9370 { set_bredr, MGMT_SETTING_SIZE },
9371 { set_static_address, MGMT_SET_STATIC_ADDRESS_SIZE },
9372 { set_scan_params, MGMT_SET_SCAN_PARAMS_SIZE },
9373 { set_secure_conn, MGMT_SETTING_SIZE },
9374 { set_debug_keys, MGMT_SETTING_SIZE },
9375 { set_privacy, MGMT_SET_PRIVACY_SIZE },
9376 { load_irks, MGMT_LOAD_IRKS_SIZE,
9377 HCI_MGMT_VAR_LEN },
9378 { get_conn_info, MGMT_GET_CONN_INFO_SIZE },
9379 { get_clock_info, MGMT_GET_CLOCK_INFO_SIZE },
9380 { add_device, MGMT_ADD_DEVICE_SIZE },
9381 { remove_device, MGMT_REMOVE_DEVICE_SIZE },
9382 { load_conn_param, MGMT_LOAD_CONN_PARAM_SIZE,
9383 HCI_MGMT_VAR_LEN },
9384 { read_unconf_index_list, MGMT_READ_UNCONF_INDEX_LIST_SIZE,
9385 HCI_MGMT_NO_HDEV |
9386 HCI_MGMT_UNTRUSTED },
9387 { read_config_info, MGMT_READ_CONFIG_INFO_SIZE,
9388 HCI_MGMT_UNCONFIGURED |
9389 HCI_MGMT_UNTRUSTED },
9390 { set_external_config, MGMT_SET_EXTERNAL_CONFIG_SIZE,
9391 HCI_MGMT_UNCONFIGURED },
9392 { set_public_address, MGMT_SET_PUBLIC_ADDRESS_SIZE,
9393 HCI_MGMT_UNCONFIGURED },
9394 { start_service_discovery, MGMT_START_SERVICE_DISCOVERY_SIZE,
9395 HCI_MGMT_VAR_LEN },
9396 { read_local_oob_ext_data, MGMT_READ_LOCAL_OOB_EXT_DATA_SIZE },
9397 { read_ext_index_list, MGMT_READ_EXT_INDEX_LIST_SIZE,
9398 HCI_MGMT_NO_HDEV |
9399 HCI_MGMT_UNTRUSTED },
9400 { read_adv_features, MGMT_READ_ADV_FEATURES_SIZE },
9401 { add_advertising, MGMT_ADD_ADVERTISING_SIZE,
9402 HCI_MGMT_VAR_LEN },
9403 { remove_advertising, MGMT_REMOVE_ADVERTISING_SIZE },
9404 { get_adv_size_info, MGMT_GET_ADV_SIZE_INFO_SIZE },
9405 { start_limited_discovery, MGMT_START_DISCOVERY_SIZE },
9406 { read_ext_controller_info,MGMT_READ_EXT_INFO_SIZE,
9407 HCI_MGMT_UNTRUSTED },
9408 { set_appearance, MGMT_SET_APPEARANCE_SIZE },
9409 { get_phy_configuration, MGMT_GET_PHY_CONFIGURATION_SIZE },
9410 { set_phy_configuration, MGMT_SET_PHY_CONFIGURATION_SIZE },
9411 { set_blocked_keys, MGMT_OP_SET_BLOCKED_KEYS_SIZE,
9412 HCI_MGMT_VAR_LEN },
9413 { set_wideband_speech, MGMT_SETTING_SIZE },
9414 { read_controller_cap, MGMT_READ_CONTROLLER_CAP_SIZE,
9415 HCI_MGMT_UNTRUSTED },
9416 { read_exp_features_info, MGMT_READ_EXP_FEATURES_INFO_SIZE,
9417 HCI_MGMT_UNTRUSTED |
9418 HCI_MGMT_HDEV_OPTIONAL },
9419 { set_exp_feature, MGMT_SET_EXP_FEATURE_SIZE,
9420 HCI_MGMT_VAR_LEN |
9421 HCI_MGMT_HDEV_OPTIONAL },
9422 { read_def_system_config, MGMT_READ_DEF_SYSTEM_CONFIG_SIZE,
9423 HCI_MGMT_UNTRUSTED },
9424 { set_def_system_config, MGMT_SET_DEF_SYSTEM_CONFIG_SIZE,
9425 HCI_MGMT_VAR_LEN },
9426 { read_def_runtime_config, MGMT_READ_DEF_RUNTIME_CONFIG_SIZE,
9427 HCI_MGMT_UNTRUSTED },
9428 { set_def_runtime_config, MGMT_SET_DEF_RUNTIME_CONFIG_SIZE,
9429 HCI_MGMT_VAR_LEN },
9430 { get_device_flags, MGMT_GET_DEVICE_FLAGS_SIZE },
9431 { set_device_flags, MGMT_SET_DEVICE_FLAGS_SIZE },
9432 { read_adv_mon_features, MGMT_READ_ADV_MONITOR_FEATURES_SIZE },
9433 { add_adv_patterns_monitor,MGMT_ADD_ADV_PATTERNS_MONITOR_SIZE,
9434 HCI_MGMT_VAR_LEN },
9435 { remove_adv_monitor, MGMT_REMOVE_ADV_MONITOR_SIZE },
9436 { add_ext_adv_params, MGMT_ADD_EXT_ADV_PARAMS_MIN_SIZE,
9437 HCI_MGMT_VAR_LEN },
9438 { add_ext_adv_data, MGMT_ADD_EXT_ADV_DATA_SIZE,
9439 HCI_MGMT_VAR_LEN },
9440 { add_adv_patterns_monitor_rssi,
9441 MGMT_ADD_ADV_PATTERNS_MONITOR_RSSI_SIZE,
9442 HCI_MGMT_VAR_LEN },
9443 { set_mesh, MGMT_SET_MESH_RECEIVER_SIZE,
9444 HCI_MGMT_VAR_LEN },
9445 { mesh_features, MGMT_MESH_READ_FEATURES_SIZE },
9446 { mesh_send, MGMT_MESH_SEND_SIZE,
9447 HCI_MGMT_VAR_LEN },
9448 { mesh_send_cancel, MGMT_MESH_SEND_CANCEL_SIZE },
9449 { mgmt_hci_cmd_sync, MGMT_HCI_CMD_SYNC_SIZE, HCI_MGMT_VAR_LEN },
9450 };
9451
9452 void mgmt_index_added(struct hci_dev *hdev)
9453 {
9454 struct mgmt_ev_ext_index ev;
9455
9456 if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
9457 return;
9458
9459 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
9460 mgmt_index_event(MGMT_EV_UNCONF_INDEX_ADDED, hdev, NULL, 0,
9461 HCI_MGMT_UNCONF_INDEX_EVENTS);
9462 ev.type = 0x01;
9463 } else {
9464 mgmt_index_event(MGMT_EV_INDEX_ADDED, hdev, NULL, 0,
9465 HCI_MGMT_INDEX_EVENTS);
9466 ev.type = 0x00;
9467 }
9468
9469 ev.bus = hdev->bus;
9470
9471 mgmt_index_event(MGMT_EV_EXT_INDEX_ADDED, hdev, &ev, sizeof(ev),
9472 HCI_MGMT_EXT_INDEX_EVENTS);
9473 }
9474
9475 void mgmt_index_removed(struct hci_dev *hdev)
9476 {
9477 struct mgmt_ev_ext_index ev;
9478 struct cmd_lookup match = { NULL, hdev, MGMT_STATUS_INVALID_INDEX };
9479
9480 if (test_bit(HCI_QUIRK_RAW_DEVICE, &hdev->quirks))
9481 return;
9482
9483 mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &match);
9484
9485 if (hci_dev_test_flag(hdev, HCI_UNCONFIGURED)) {
9486 mgmt_index_event(MGMT_EV_UNCONF_INDEX_REMOVED, hdev, NULL, 0,
9487 HCI_MGMT_UNCONF_INDEX_EVENTS);
9488 ev.type = 0x01;
9489 } else {
9490 mgmt_index_event(MGMT_EV_INDEX_REMOVED, hdev, NULL, 0,
9491 HCI_MGMT_INDEX_EVENTS);
9492 ev.type = 0x00;
9493 }
9494
9495 ev.bus = hdev->bus;
9496
9497 mgmt_index_event(MGMT_EV_EXT_INDEX_REMOVED, hdev, &ev, sizeof(ev),
9498 HCI_MGMT_EXT_INDEX_EVENTS);
9499
9500 /* Cancel any remaining timed work */
9501 if (!hci_dev_test_flag(hdev, HCI_MGMT))
9502 return;
9503 cancel_delayed_work_sync(&hdev->discov_off);
9504 cancel_delayed_work_sync(&hdev->service_cache);
9505 cancel_delayed_work_sync(&hdev->rpa_expired);
9506 }
9507
9508 void mgmt_power_on(struct hci_dev *hdev, int err)
9509 {
9510 struct cmd_lookup match = { NULL, hdev };
9511
9512 bt_dev_dbg(hdev, "err %d", err);
9513
9514 hci_dev_lock(hdev);
9515
9516 if (!err) {
9517 restart_le_actions(hdev);
9518 hci_update_passive_scan(hdev);
9519 }
9520
9521 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
9522
9523 new_settings(hdev, match.sk);
9524
9525 if (match.sk)
9526 sock_put(match.sk);
9527
9528 hci_dev_unlock(hdev);
9529 }
9530
9531 void __mgmt_power_off(struct hci_dev *hdev)
9532 {
9533 struct cmd_lookup match = { NULL, hdev };
9534 u8 zero_cod[] = { 0, 0, 0 };
9535
9536 mgmt_pending_foreach(MGMT_OP_SET_POWERED, hdev, settings_rsp, &match);
9537
9538 /* If the power off is because of hdev unregistration let
9539 * use the appropriate INVALID_INDEX status. Otherwise use
9540 * NOT_POWERED. We cover both scenarios here since later in
9541 * mgmt_index_removed() any hci_conn callbacks will have already
9542 * been triggered, potentially causing misleading DISCONNECTED
9543 * status responses.
9544 */
9545 if (hci_dev_test_flag(hdev, HCI_UNREGISTER))
9546 match.mgmt_status = MGMT_STATUS_INVALID_INDEX;
9547 else
9548 match.mgmt_status = MGMT_STATUS_NOT_POWERED;
9549
9550 mgmt_pending_foreach(0, hdev, cmd_complete_rsp, &match);
9551
9552 if (memcmp(hdev->dev_class, zero_cod, sizeof(zero_cod)) != 0) {
9553 mgmt_limited_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev,
9554 zero_cod, sizeof(zero_cod),
9555 HCI_MGMT_DEV_CLASS_EVENTS, NULL);
9556 ext_info_changed(hdev, NULL);
9557 }
9558
9559 new_settings(hdev, match.sk);
9560
9561 if (match.sk)
9562 sock_put(match.sk);
9563 }
9564
9565 void mgmt_set_powered_failed(struct hci_dev *hdev, int err)
9566 {
9567 struct mgmt_pending_cmd *cmd;
9568 u8 status;
9569
9570 cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
9571 if (!cmd)
9572 return;
9573
9574 if (err == -ERFKILL)
9575 status = MGMT_STATUS_RFKILLED;
9576 else
9577 status = MGMT_STATUS_FAILED;
9578
9579 mgmt_cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
9580
9581 mgmt_pending_remove(cmd);
9582 }
9583
9584 void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
9585 bool persistent)
9586 {
9587 struct mgmt_ev_new_link_key ev;
9588
9589 memset(&ev, 0, sizeof(ev));
9590
9591 ev.store_hint = persistent;
9592 bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
9593 ev.key.addr.type = BDADDR_BREDR;
9594 ev.key.type = key->type;
9595 memcpy(ev.key.val, key->val, HCI_LINK_KEY_SIZE);
9596 ev.key.pin_len = key->pin_len;
9597
9598 mgmt_event(MGMT_EV_NEW_LINK_KEY, hdev, &ev, sizeof(ev), NULL);
9599 }
9600
9601 static u8 mgmt_ltk_type(struct smp_ltk *ltk)
9602 {
9603 switch (ltk->type) {
9604 case SMP_LTK:
9605 case SMP_LTK_RESPONDER:
9606 if (ltk->authenticated)
9607 return MGMT_LTK_AUTHENTICATED;
9608 return MGMT_LTK_UNAUTHENTICATED;
9609 case SMP_LTK_P256:
9610 if (ltk->authenticated)
9611 return MGMT_LTK_P256_AUTH;
9612 return MGMT_LTK_P256_UNAUTH;
9613 case SMP_LTK_P256_DEBUG:
9614 return MGMT_LTK_P256_DEBUG;
9615 }
9616
9617 return MGMT_LTK_UNAUTHENTICATED;
9618 }
9619
9620 void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent)
9621 {
9622 struct mgmt_ev_new_long_term_key ev;
9623
9624 memset(&ev, 0, sizeof(ev));
9625
9626 /* Devices using resolvable or non-resolvable random addresses
9627 * without providing an identity resolving key don't require
9628 * to store long term keys. Their addresses will change the
9629 * next time around.
9630 *
9631 * Only when a remote device provides an identity address
9632 * make sure the long term key is stored. If the remote
9633 * identity is known, the long term keys are internally
9634 * mapped to the identity address. So allow static random
9635 * and public addresses here.
9636 */
9637 if (key->bdaddr_type == ADDR_LE_DEV_RANDOM &&
9638 (key->bdaddr.b[5] & 0xc0) != 0xc0)
9639 ev.store_hint = 0x00;
9640 else
9641 ev.store_hint = persistent;
9642
9643 bacpy(&ev.key.addr.bdaddr, &key->bdaddr);
9644 ev.key.addr.type = link_to_bdaddr(LE_LINK, key->bdaddr_type);
9645 ev.key.type = mgmt_ltk_type(key);
9646 ev.key.enc_size = key->enc_size;
9647 ev.key.ediv = key->ediv;
9648 ev.key.rand = key->rand;
9649
9650 if (key->type == SMP_LTK)
9651 ev.key.initiator = 1;
9652
9653 /* Make sure we copy only the significant bytes based on the
9654 * encryption key size, and set the rest of the value to zeroes.
9655 */
9656 memcpy(ev.key.val, key->val, key->enc_size);
9657 memset(ev.key.val + key->enc_size, 0,
9658 sizeof(ev.key.val) - key->enc_size);
9659
9660 mgmt_event(MGMT_EV_NEW_LONG_TERM_KEY, hdev, &ev, sizeof(ev), NULL);
9661 }
9662
9663 void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent)
9664 {
9665 struct mgmt_ev_new_irk ev;
9666
9667 memset(&ev, 0, sizeof(ev));
9668
9669 ev.store_hint = persistent;
9670
9671 bacpy(&ev.rpa, &irk->rpa);
9672 bacpy(&ev.irk.addr.bdaddr, &irk->bdaddr);
9673 ev.irk.addr.type = link_to_bdaddr(LE_LINK, irk->addr_type);
9674 memcpy(ev.irk.val, irk->val, sizeof(irk->val));
9675
9676 mgmt_event(MGMT_EV_NEW_IRK, hdev, &ev, sizeof(ev), NULL);
9677 }
9678
9679 void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk,
9680 bool persistent)
9681 {
9682 struct mgmt_ev_new_csrk ev;
9683
9684 memset(&ev, 0, sizeof(ev));
9685
9686 /* Devices using resolvable or non-resolvable random addresses
9687 * without providing an identity resolving key don't require
9688 * to store signature resolving keys. Their addresses will change
9689 * the next time around.
9690 *
9691 * Only when a remote device provides an identity address
9692 * make sure the signature resolving key is stored. So allow
9693 * static random and public addresses here.
9694 */
9695 if (csrk->bdaddr_type == ADDR_LE_DEV_RANDOM &&
9696 (csrk->bdaddr.b[5] & 0xc0) != 0xc0)
9697 ev.store_hint = 0x00;
9698 else
9699 ev.store_hint = persistent;
9700
9701 bacpy(&ev.key.addr.bdaddr, &csrk->bdaddr);
9702 ev.key.addr.type = link_to_bdaddr(LE_LINK, csrk->bdaddr_type);
9703 ev.key.type = csrk->type;
9704 memcpy(ev.key.val, csrk->val, sizeof(csrk->val));
9705
9706 mgmt_event(MGMT_EV_NEW_CSRK, hdev, &ev, sizeof(ev), NULL);
9707 }
9708
9709 void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr,
9710 u8 bdaddr_type, u8 store_hint, u16 min_interval,
9711 u16 max_interval, u16 latency, u16 timeout)
9712 {
9713 struct mgmt_ev_new_conn_param ev;
9714
9715 if (!hci_is_identity_address(bdaddr, bdaddr_type))
9716 return;
9717
9718 memset(&ev, 0, sizeof(ev));
9719 bacpy(&ev.addr.bdaddr, bdaddr);
9720 ev.addr.type = link_to_bdaddr(LE_LINK, bdaddr_type);
9721 ev.store_hint = store_hint;
9722 ev.min_interval = cpu_to_le16(min_interval);
9723 ev.max_interval = cpu_to_le16(max_interval);
9724 ev.latency = cpu_to_le16(latency);
9725 ev.timeout = cpu_to_le16(timeout);
9726
9727 mgmt_event(MGMT_EV_NEW_CONN_PARAM, hdev, &ev, sizeof(ev), NULL);
9728 }
9729
9730 void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn,
9731 u8 *name, u8 name_len)
9732 {
9733 struct sk_buff *skb;
9734 struct mgmt_ev_device_connected *ev;
9735 u16 eir_len = 0;
9736 u32 flags = 0;
9737
9738 if (test_and_set_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags))
9739 return;
9740
9741 /* allocate buff for LE or BR/EDR adv */
9742 if (conn->le_adv_data_len > 0)
9743 skb = mgmt_alloc_skb(hdev, MGMT_EV_DEVICE_CONNECTED,
9744 sizeof(*ev) + conn->le_adv_data_len);
9745 else
9746 skb = mgmt_alloc_skb(hdev, MGMT_EV_DEVICE_CONNECTED,
9747 sizeof(*ev) + (name ? eir_precalc_len(name_len) : 0) +
9748 eir_precalc_len(sizeof(conn->dev_class)));
9749
9750 ev = skb_put(skb, sizeof(*ev));
9751 bacpy(&ev->addr.bdaddr, &conn->dst);
9752 ev->addr.type = link_to_bdaddr(conn->type, conn->dst_type);
9753
9754 if (conn->out)
9755 flags |= MGMT_DEV_FOUND_INITIATED_CONN;
9756
9757 ev->flags = __cpu_to_le32(flags);
9758
9759 /* We must ensure that the EIR Data fields are ordered and
9760 * unique. Keep it simple for now and avoid the problem by not
9761 * adding any BR/EDR data to the LE adv.
9762 */
9763 if (conn->le_adv_data_len > 0) {
9764 skb_put_data(skb, conn->le_adv_data, conn->le_adv_data_len);
9765 eir_len = conn->le_adv_data_len;
9766 } else {
9767 if (name)
9768 eir_len += eir_skb_put_data(skb, EIR_NAME_COMPLETE, name, name_len);
9769
9770 if (memcmp(conn->dev_class, "\0\0\0", sizeof(conn->dev_class)))
9771 eir_len += eir_skb_put_data(skb, EIR_CLASS_OF_DEV,
9772 conn->dev_class, sizeof(conn->dev_class));
9773 }
9774
9775 ev->eir_len = cpu_to_le16(eir_len);
9776
9777 mgmt_event_skb(skb, NULL);
9778 }
9779
9780 static void unpair_device_rsp(struct mgmt_pending_cmd *cmd, void *data)
9781 {
9782 struct hci_dev *hdev = data;
9783 struct mgmt_cp_unpair_device *cp = cmd->param;
9784
9785 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, cmd->sk);
9786
9787 cmd->cmd_complete(cmd, 0);
9788 mgmt_pending_remove(cmd);
9789 }
9790
9791 bool mgmt_powering_down(struct hci_dev *hdev)
9792 {
9793 struct mgmt_pending_cmd *cmd;
9794 struct mgmt_mode *cp;
9795
9796 if (hci_dev_test_flag(hdev, HCI_POWERING_DOWN))
9797 return true;
9798
9799 cmd = pending_find(MGMT_OP_SET_POWERED, hdev);
9800 if (!cmd)
9801 return false;
9802
9803 cp = cmd->param;
9804 if (!cp->val)
9805 return true;
9806
9807 return false;
9808 }
9809
9810 void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
9811 u8 link_type, u8 addr_type, u8 reason,
9812 bool mgmt_connected)
9813 {
9814 struct mgmt_ev_device_disconnected ev;
9815 struct sock *sk = NULL;
9816
9817 if (!mgmt_connected)
9818 return;
9819
9820 if (link_type != ACL_LINK && link_type != LE_LINK)
9821 return;
9822
9823 bacpy(&ev.addr.bdaddr, bdaddr);
9824 ev.addr.type = link_to_bdaddr(link_type, addr_type);
9825 ev.reason = reason;
9826
9827 /* Report disconnects due to suspend */
9828 if (hdev->suspended)
9829 ev.reason = MGMT_DEV_DISCONN_LOCAL_HOST_SUSPEND;
9830
9831 mgmt_event(MGMT_EV_DEVICE_DISCONNECTED, hdev, &ev, sizeof(ev), sk);
9832
9833 if (sk)
9834 sock_put(sk);
9835 }
9836
9837 void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
9838 u8 link_type, u8 addr_type, u8 status)
9839 {
9840 u8 bdaddr_type = link_to_bdaddr(link_type, addr_type);
9841 struct mgmt_cp_disconnect *cp;
9842 struct mgmt_pending_cmd *cmd;
9843
9844 mgmt_pending_foreach(MGMT_OP_UNPAIR_DEVICE, hdev, unpair_device_rsp,
9845 hdev);
9846
9847 cmd = pending_find(MGMT_OP_DISCONNECT, hdev);
9848 if (!cmd)
9849 return;
9850
9851 cp = cmd->param;
9852
9853 if (bacmp(bdaddr, &cp->addr.bdaddr))
9854 return;
9855
9856 if (cp->addr.type != bdaddr_type)
9857 return;
9858
9859 cmd->cmd_complete(cmd, mgmt_status(status));
9860 mgmt_pending_remove(cmd);
9861 }
9862
9863 void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn, u8 status)
9864 {
9865 struct mgmt_ev_connect_failed ev;
9866
9867 if (test_and_clear_bit(HCI_CONN_MGMT_CONNECTED, &conn->flags)) {
9868 mgmt_device_disconnected(hdev, &conn->dst, conn->type,
9869 conn->dst_type, status, true);
9870 return;
9871 }
9872
9873 bacpy(&ev.addr.bdaddr, &conn->dst);
9874 ev.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
9875 ev.status = mgmt_status(status);
9876
9877 mgmt_event(MGMT_EV_CONNECT_FAILED, hdev, &ev, sizeof(ev), NULL);
9878 }
9879
9880 void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure)
9881 {
9882 struct mgmt_ev_pin_code_request ev;
9883
9884 bacpy(&ev.addr.bdaddr, bdaddr);
9885 ev.addr.type = BDADDR_BREDR;
9886 ev.secure = secure;
9887
9888 mgmt_event(MGMT_EV_PIN_CODE_REQUEST, hdev, &ev, sizeof(ev), NULL);
9889 }
9890
9891 void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
9892 u8 status)
9893 {
9894 struct mgmt_pending_cmd *cmd;
9895
9896 cmd = pending_find(MGMT_OP_PIN_CODE_REPLY, hdev);
9897 if (!cmd)
9898 return;
9899
9900 cmd->cmd_complete(cmd, mgmt_status(status));
9901 mgmt_pending_remove(cmd);
9902 }
9903
9904 void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
9905 u8 status)
9906 {
9907 struct mgmt_pending_cmd *cmd;
9908
9909 cmd = pending_find(MGMT_OP_PIN_CODE_NEG_REPLY, hdev);
9910 if (!cmd)
9911 return;
9912
9913 cmd->cmd_complete(cmd, mgmt_status(status));
9914 mgmt_pending_remove(cmd);
9915 }
9916
9917 int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
9918 u8 link_type, u8 addr_type, u32 value,
9919 u8 confirm_hint)
9920 {
9921 struct mgmt_ev_user_confirm_request ev;
9922
9923 bt_dev_dbg(hdev, "bdaddr %pMR", bdaddr);
9924
9925 bacpy(&ev.addr.bdaddr, bdaddr);
9926 ev.addr.type = link_to_bdaddr(link_type, addr_type);
9927 ev.confirm_hint = confirm_hint;
9928 ev.value = cpu_to_le32(value);
9929
9930 return mgmt_event(MGMT_EV_USER_CONFIRM_REQUEST, hdev, &ev, sizeof(ev),
9931 NULL);
9932 }
9933
9934 int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
9935 u8 link_type, u8 addr_type)
9936 {
9937 struct mgmt_ev_user_passkey_request ev;
9938
9939 bt_dev_dbg(hdev, "bdaddr %pMR", bdaddr);
9940
9941 bacpy(&ev.addr.bdaddr, bdaddr);
9942 ev.addr.type = link_to_bdaddr(link_type, addr_type);
9943
9944 return mgmt_event(MGMT_EV_USER_PASSKEY_REQUEST, hdev, &ev, sizeof(ev),
9945 NULL);
9946 }
9947
9948 static int user_pairing_resp_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
9949 u8 link_type, u8 addr_type, u8 status,
9950 u8 opcode)
9951 {
9952 struct mgmt_pending_cmd *cmd;
9953
9954 cmd = pending_find(opcode, hdev);
9955 if (!cmd)
9956 return -ENOENT;
9957
9958 cmd->cmd_complete(cmd, mgmt_status(status));
9959 mgmt_pending_remove(cmd);
9960
9961 return 0;
9962 }
9963
9964 int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
9965 u8 link_type, u8 addr_type, u8 status)
9966 {
9967 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
9968 status, MGMT_OP_USER_CONFIRM_REPLY);
9969 }
9970
9971 int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
9972 u8 link_type, u8 addr_type, u8 status)
9973 {
9974 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
9975 status,
9976 MGMT_OP_USER_CONFIRM_NEG_REPLY);
9977 }
9978
9979 int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
9980 u8 link_type, u8 addr_type, u8 status)
9981 {
9982 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
9983 status, MGMT_OP_USER_PASSKEY_REPLY);
9984 }
9985
9986 int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
9987 u8 link_type, u8 addr_type, u8 status)
9988 {
9989 return user_pairing_resp_complete(hdev, bdaddr, link_type, addr_type,
9990 status,
9991 MGMT_OP_USER_PASSKEY_NEG_REPLY);
9992 }
9993
9994 int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
9995 u8 link_type, u8 addr_type, u32 passkey,
9996 u8 entered)
9997 {
9998 struct mgmt_ev_passkey_notify ev;
9999
10000 bt_dev_dbg(hdev, "bdaddr %pMR", bdaddr);
10001
10002 bacpy(&ev.addr.bdaddr, bdaddr);
10003 ev.addr.type = link_to_bdaddr(link_type, addr_type);
10004 ev.passkey = __cpu_to_le32(passkey);
10005 ev.entered = entered;
10006
10007 return mgmt_event(MGMT_EV_PASSKEY_NOTIFY, hdev, &ev, sizeof(ev), NULL);
10008 }
10009
10010 void mgmt_auth_failed(struct hci_conn *conn, u8 hci_status)
10011 {
10012 struct mgmt_ev_auth_failed ev;
10013 struct mgmt_pending_cmd *cmd;
10014 u8 status = mgmt_status(hci_status);
10015
10016 bacpy(&ev.addr.bdaddr, &conn->dst);
10017 ev.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
10018 ev.status = status;
10019
10020 cmd = find_pairing(conn);
10021
10022 mgmt_event(MGMT_EV_AUTH_FAILED, conn->hdev, &ev, sizeof(ev),
10023 cmd ? cmd->sk : NULL);
10024
10025 if (cmd) {
10026 cmd->cmd_complete(cmd, status);
10027 mgmt_pending_remove(cmd);
10028 }
10029 }
10030
10031 void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status)
10032 {
10033 struct cmd_lookup match = { NULL, hdev };
10034 bool changed;
10035
10036 if (status) {
10037 u8 mgmt_err = mgmt_status(status);
10038 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev,
10039 cmd_status_rsp, &mgmt_err);
10040 return;
10041 }
10042
10043 if (test_bit(HCI_AUTH, &hdev->flags))
10044 changed = !hci_dev_test_and_set_flag(hdev, HCI_LINK_SECURITY);
10045 else
10046 changed = hci_dev_test_and_clear_flag(hdev, HCI_LINK_SECURITY);
10047
10048 mgmt_pending_foreach(MGMT_OP_SET_LINK_SECURITY, hdev, settings_rsp,
10049 &match);
10050
10051 if (changed)
10052 new_settings(hdev, match.sk);
10053
10054 if (match.sk)
10055 sock_put(match.sk);
10056 }
10057
10058 static void sk_lookup(struct mgmt_pending_cmd *cmd, void *data)
10059 {
10060 struct cmd_lookup *match = data;
10061
10062 if (match->sk == NULL) {
10063 match->sk = cmd->sk;
10064 sock_hold(match->sk);
10065 }
10066 }
10067
10068 void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
10069 u8 status)
10070 {
10071 struct cmd_lookup match = { NULL, hdev, mgmt_status(status) };
10072
10073 mgmt_pending_foreach(MGMT_OP_SET_DEV_CLASS, hdev, sk_lookup, &match);
10074 mgmt_pending_foreach(MGMT_OP_ADD_UUID, hdev, sk_lookup, &match);
10075 mgmt_pending_foreach(MGMT_OP_REMOVE_UUID, hdev, sk_lookup, &match);
10076
10077 if (!status) {
10078 mgmt_limited_event(MGMT_EV_CLASS_OF_DEV_CHANGED, hdev, dev_class,
10079 3, HCI_MGMT_DEV_CLASS_EVENTS, NULL);
10080 ext_info_changed(hdev, NULL);
10081 }
10082
10083 if (match.sk)
10084 sock_put(match.sk);
10085 }
10086
10087 void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status)
10088 {
10089 struct mgmt_cp_set_local_name ev;
10090 struct mgmt_pending_cmd *cmd;
10091
10092 if (status)
10093 return;
10094
10095 memset(&ev, 0, sizeof(ev));
10096 memcpy(ev.name, name, HCI_MAX_NAME_LENGTH);
10097 memcpy(ev.short_name, hdev->short_name, HCI_MAX_SHORT_NAME_LENGTH);
10098
10099 cmd = pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
10100 if (!cmd) {
10101 memcpy(hdev->dev_name, name, sizeof(hdev->dev_name));
10102
10103 /* If this is a HCI command related to powering on the
10104 * HCI dev don't send any mgmt signals.
10105 */
10106 if (hci_dev_test_flag(hdev, HCI_POWERING_DOWN))
10107 return;
10108
10109 if (pending_find(MGMT_OP_SET_POWERED, hdev))
10110 return;
10111 }
10112
10113 mgmt_limited_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, &ev, sizeof(ev),
10114 HCI_MGMT_LOCAL_NAME_EVENTS, cmd ? cmd->sk : NULL);
10115 ext_info_changed(hdev, cmd ? cmd->sk : NULL);
10116 }
10117
10118 static inline bool has_uuid(u8 *uuid, u16 uuid_count, u8 (*uuids)[16])
10119 {
10120 int i;
10121
10122 for (i = 0; i < uuid_count; i++) {
10123 if (!memcmp(uuid, uuids[i], 16))
10124 return true;
10125 }
10126
10127 return false;
10128 }
10129
10130 static bool eir_has_uuids(u8 *eir, u16 eir_len, u16 uuid_count, u8 (*uuids)[16])
10131 {
10132 u16 parsed = 0;
10133
10134 while (parsed < eir_len) {
10135 u8 field_len = eir[0];
10136 u8 uuid[16];
10137 int i;
10138
10139 if (field_len == 0)
10140 break;
10141
10142 if (eir_len - parsed < field_len + 1)
10143 break;
10144
10145 switch (eir[1]) {
10146 case EIR_UUID16_ALL:
10147 case EIR_UUID16_SOME:
10148 for (i = 0; i + 3 <= field_len; i += 2) {
10149 memcpy(uuid, bluetooth_base_uuid, 16);
10150 uuid[13] = eir[i + 3];
10151 uuid[12] = eir[i + 2];
10152 if (has_uuid(uuid, uuid_count, uuids))
10153 return true;
10154 }
10155 break;
10156 case EIR_UUID32_ALL:
10157 case EIR_UUID32_SOME:
10158 for (i = 0; i + 5 <= field_len; i += 4) {
10159 memcpy(uuid, bluetooth_base_uuid, 16);
10160 uuid[15] = eir[i + 5];
10161 uuid[14] = eir[i + 4];
10162 uuid[13] = eir[i + 3];
10163 uuid[12] = eir[i + 2];
10164 if (has_uuid(uuid, uuid_count, uuids))
10165 return true;
10166 }
10167 break;
10168 case EIR_UUID128_ALL:
10169 case EIR_UUID128_SOME:
10170 for (i = 0; i + 17 <= field_len; i += 16) {
10171 memcpy(uuid, eir + i + 2, 16);
10172 if (has_uuid(uuid, uuid_count, uuids))
10173 return true;
10174 }
10175 break;
10176 }
10177
10178 parsed += field_len + 1;
10179 eir += field_len + 1;
10180 }
10181
10182 return false;
10183 }
10184
10185 static bool is_filter_match(struct hci_dev *hdev, s8 rssi, u8 *eir,
10186 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len)
10187 {
10188 /* If a RSSI threshold has been specified, and
10189 * HCI_QUIRK_STRICT_DUPLICATE_FILTER is not set, then all results with
10190 * a RSSI smaller than the RSSI threshold will be dropped. If the quirk
10191 * is set, let it through for further processing, as we might need to
10192 * restart the scan.
10193 *
10194 * For BR/EDR devices (pre 1.2) providing no RSSI during inquiry,
10195 * the results are also dropped.
10196 */
10197 if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
10198 (rssi == HCI_RSSI_INVALID ||
10199 (rssi < hdev->discovery.rssi &&
10200 !test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks))))
10201 return false;
10202
10203 if (hdev->discovery.uuid_count != 0) {
10204 /* If a list of UUIDs is provided in filter, results with no
10205 * matching UUID should be dropped.
10206 */
10207 if (!eir_has_uuids(eir, eir_len, hdev->discovery.uuid_count,
10208 hdev->discovery.uuids) &&
10209 !eir_has_uuids(scan_rsp, scan_rsp_len,
10210 hdev->discovery.uuid_count,
10211 hdev->discovery.uuids))
10212 return false;
10213 }
10214
10215 /* If duplicate filtering does not report RSSI changes, then restart
10216 * scanning to ensure updated result with updated RSSI values.
10217 */
10218 if (test_bit(HCI_QUIRK_STRICT_DUPLICATE_FILTER, &hdev->quirks)) {
10219 /* Validate RSSI value against the RSSI threshold once more. */
10220 if (hdev->discovery.rssi != HCI_RSSI_INVALID &&
10221 rssi < hdev->discovery.rssi)
10222 return false;
10223 }
10224
10225 return true;
10226 }
10227
10228 void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle,
10229 bdaddr_t *bdaddr, u8 addr_type)
10230 {
10231 struct mgmt_ev_adv_monitor_device_lost ev;
10232
10233 ev.monitor_handle = cpu_to_le16(handle);
10234 bacpy(&ev.addr.bdaddr, bdaddr);
10235 ev.addr.type = addr_type;
10236
10237 mgmt_event(MGMT_EV_ADV_MONITOR_DEVICE_LOST, hdev, &ev, sizeof(ev),
10238 NULL);
10239 }
10240
10241 static void mgmt_send_adv_monitor_device_found(struct hci_dev *hdev,
10242 struct sk_buff *skb,
10243 struct sock *skip_sk,
10244 u16 handle)
10245 {
10246 struct sk_buff *advmon_skb;
10247 size_t advmon_skb_len;
10248 __le16 *monitor_handle;
10249
10250 if (!skb)
10251 return;
10252
10253 advmon_skb_len = (sizeof(struct mgmt_ev_adv_monitor_device_found) -
10254 sizeof(struct mgmt_ev_device_found)) + skb->len;
10255 advmon_skb = mgmt_alloc_skb(hdev, MGMT_EV_ADV_MONITOR_DEVICE_FOUND,
10256 advmon_skb_len);
10257 if (!advmon_skb)
10258 return;
10259
10260 /* ADV_MONITOR_DEVICE_FOUND is similar to DEVICE_FOUND event except
10261 * that it also has 'monitor_handle'. Make a copy of DEVICE_FOUND and
10262 * store monitor_handle of the matched monitor.
10263 */
10264 monitor_handle = skb_put(advmon_skb, sizeof(*monitor_handle));
10265 *monitor_handle = cpu_to_le16(handle);
10266 skb_put_data(advmon_skb, skb->data, skb->len);
10267
10268 mgmt_event_skb(advmon_skb, skip_sk);
10269 }
10270
10271 static void mgmt_adv_monitor_device_found(struct hci_dev *hdev,
10272 bdaddr_t *bdaddr, bool report_device,
10273 struct sk_buff *skb,
10274 struct sock *skip_sk)
10275 {
10276 struct monitored_device *dev, *tmp;
10277 bool matched = false;
10278 bool notified = false;
10279
10280 /* We have received the Advertisement Report because:
10281 * 1. the kernel has initiated active discovery
10282 * 2. if not, we have pend_le_reports > 0 in which case we are doing
10283 * passive scanning
10284 * 3. if none of the above is true, we have one or more active
10285 * Advertisement Monitor
10286 *
10287 * For case 1 and 2, report all advertisements via MGMT_EV_DEVICE_FOUND
10288 * and report ONLY one advertisement per device for the matched Monitor
10289 * via MGMT_EV_ADV_MONITOR_DEVICE_FOUND event.
10290 *
10291 * For case 3, since we are not active scanning and all advertisements
10292 * received are due to a matched Advertisement Monitor, report all
10293 * advertisements ONLY via MGMT_EV_ADV_MONITOR_DEVICE_FOUND event.
10294 */
10295 if (report_device && !hdev->advmon_pend_notify) {
10296 mgmt_event_skb(skb, skip_sk);
10297 return;
10298 }
10299
10300 hdev->advmon_pend_notify = false;
10301
10302 list_for_each_entry_safe(dev, tmp, &hdev->monitored_devices, list) {
10303 if (!bacmp(&dev->bdaddr, bdaddr)) {
10304 matched = true;
10305
10306 if (!dev->notified) {
10307 mgmt_send_adv_monitor_device_found(hdev, skb,
10308 skip_sk,
10309 dev->handle);
10310 notified = true;
10311 dev->notified = true;
10312 }
10313 }
10314
10315 if (!dev->notified)
10316 hdev->advmon_pend_notify = true;
10317 }
10318
10319 if (!report_device &&
10320 ((matched && !notified) || !msft_monitor_supported(hdev))) {
10321 /* Handle 0 indicates that we are not active scanning and this
10322 * is a subsequent advertisement report for an already matched
10323 * Advertisement Monitor or the controller offloading support
10324 * is not available.
10325 */
10326 mgmt_send_adv_monitor_device_found(hdev, skb, skip_sk, 0);
10327 }
10328
10329 if (report_device)
10330 mgmt_event_skb(skb, skip_sk);
10331 else
10332 kfree_skb(skb);
10333 }
10334
10335 static void mesh_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr,
10336 u8 addr_type, s8 rssi, u32 flags, u8 *eir,
10337 u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
10338 u64 instant)
10339 {
10340 struct sk_buff *skb;
10341 struct mgmt_ev_mesh_device_found *ev;
10342 int i, j;
10343
10344 if (!hdev->mesh_ad_types[0])
10345 goto accepted;
10346
10347 /* Scan for requested AD types */
10348 if (eir_len > 0) {
10349 for (i = 0; i + 1 < eir_len; i += eir[i] + 1) {
10350 for (j = 0; j < sizeof(hdev->mesh_ad_types); j++) {
10351 if (!hdev->mesh_ad_types[j])
10352 break;
10353
10354 if (hdev->mesh_ad_types[j] == eir[i + 1])
10355 goto accepted;
10356 }
10357 }
10358 }
10359
10360 if (scan_rsp_len > 0) {
10361 for (i = 0; i + 1 < scan_rsp_len; i += scan_rsp[i] + 1) {
10362 for (j = 0; j < sizeof(hdev->mesh_ad_types); j++) {
10363 if (!hdev->mesh_ad_types[j])
10364 break;
10365
10366 if (hdev->mesh_ad_types[j] == scan_rsp[i + 1])
10367 goto accepted;
10368 }
10369 }
10370 }
10371
10372 return;
10373
10374 accepted:
10375 skb = mgmt_alloc_skb(hdev, MGMT_EV_MESH_DEVICE_FOUND,
10376 sizeof(*ev) + eir_len + scan_rsp_len);
10377 if (!skb)
10378 return;
10379
10380 ev = skb_put(skb, sizeof(*ev));
10381
10382 bacpy(&ev->addr.bdaddr, bdaddr);
10383 ev->addr.type = link_to_bdaddr(LE_LINK, addr_type);
10384 ev->rssi = rssi;
10385 ev->flags = cpu_to_le32(flags);
10386 ev->instant = cpu_to_le64(instant);
10387
10388 if (eir_len > 0)
10389 /* Copy EIR or advertising data into event */
10390 skb_put_data(skb, eir, eir_len);
10391
10392 if (scan_rsp_len > 0)
10393 /* Append scan response data to event */
10394 skb_put_data(skb, scan_rsp, scan_rsp_len);
10395
10396 ev->eir_len = cpu_to_le16(eir_len + scan_rsp_len);
10397
10398 mgmt_event_skb(skb, NULL);
10399 }
10400
10401 void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
10402 u8 addr_type, u8 *dev_class, s8 rssi, u32 flags,
10403 u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len,
10404 u64 instant)
10405 {
10406 struct sk_buff *skb;
10407 struct mgmt_ev_device_found *ev;
10408 bool report_device = hci_discovery_active(hdev);
10409
10410 if (hci_dev_test_flag(hdev, HCI_MESH) && link_type == LE_LINK)
10411 mesh_device_found(hdev, bdaddr, addr_type, rssi, flags,
10412 eir, eir_len, scan_rsp, scan_rsp_len,
10413 instant);
10414
10415 /* Don't send events for a non-kernel initiated discovery. With
10416 * LE one exception is if we have pend_le_reports > 0 in which
10417 * case we're doing passive scanning and want these events.
10418 */
10419 if (!hci_discovery_active(hdev)) {
10420 if (link_type == ACL_LINK)
10421 return;
10422 if (link_type == LE_LINK && !list_empty(&hdev->pend_le_reports))
10423 report_device = true;
10424 else if (!hci_is_adv_monitoring(hdev))
10425 return;
10426 }
10427
10428 if (hdev->discovery.result_filtering) {
10429 /* We are using service discovery */
10430 if (!is_filter_match(hdev, rssi, eir, eir_len, scan_rsp,
10431 scan_rsp_len))
10432 return;
10433 }
10434
10435 if (hdev->discovery.limited) {
10436 /* Check for limited discoverable bit */
10437 if (dev_class) {
10438 if (!(dev_class[1] & 0x20))
10439 return;
10440 } else {
10441 u8 *flags = eir_get_data(eir, eir_len, EIR_FLAGS, NULL);
10442 if (!flags || !(flags[0] & LE_AD_LIMITED))
10443 return;
10444 }
10445 }
10446
10447 /* Allocate skb. The 5 extra bytes are for the potential CoD field */
10448 skb = mgmt_alloc_skb(hdev, MGMT_EV_DEVICE_FOUND,
10449 sizeof(*ev) + eir_len + scan_rsp_len + 5);
10450 if (!skb)
10451 return;
10452
10453 ev = skb_put(skb, sizeof(*ev));
10454
10455 /* In case of device discovery with BR/EDR devices (pre 1.2), the
10456 * RSSI value was reported as 0 when not available. This behavior
10457 * is kept when using device discovery. This is required for full
10458 * backwards compatibility with the API.
10459 *
10460 * However when using service discovery, the value 127 will be
10461 * returned when the RSSI is not available.
10462 */
10463 if (rssi == HCI_RSSI_INVALID && !hdev->discovery.report_invalid_rssi &&
10464 link_type == ACL_LINK)
10465 rssi = 0;
10466
10467 bacpy(&ev->addr.bdaddr, bdaddr);
10468 ev->addr.type = link_to_bdaddr(link_type, addr_type);
10469 ev->rssi = rssi;
10470 ev->flags = cpu_to_le32(flags);
10471
10472 if (eir_len > 0)
10473 /* Copy EIR or advertising data into event */
10474 skb_put_data(skb, eir, eir_len);
10475
10476 if (dev_class && !eir_get_data(eir, eir_len, EIR_CLASS_OF_DEV, NULL)) {
10477 u8 eir_cod[5];
10478
10479 eir_len += eir_append_data(eir_cod, 0, EIR_CLASS_OF_DEV,
10480 dev_class, 3);
10481 skb_put_data(skb, eir_cod, sizeof(eir_cod));
10482 }
10483
10484 if (scan_rsp_len > 0)
10485 /* Append scan response data to event */
10486 skb_put_data(skb, scan_rsp, scan_rsp_len);
10487
10488 ev->eir_len = cpu_to_le16(eir_len + scan_rsp_len);
10489
10490 mgmt_adv_monitor_device_found(hdev, bdaddr, report_device, skb, NULL);
10491 }
10492
10493 void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
10494 u8 addr_type, s8 rssi, u8 *name, u8 name_len)
10495 {
10496 struct sk_buff *skb;
10497 struct mgmt_ev_device_found *ev;
10498 u16 eir_len = 0;
10499 u32 flags = 0;
10500
10501 skb = mgmt_alloc_skb(hdev, MGMT_EV_DEVICE_FOUND,
10502 sizeof(*ev) + (name ? eir_precalc_len(name_len) : 0));
10503
10504 ev = skb_put(skb, sizeof(*ev));
10505 bacpy(&ev->addr.bdaddr, bdaddr);
10506 ev->addr.type = link_to_bdaddr(link_type, addr_type);
10507 ev->rssi = rssi;
10508
10509 if (name)
10510 eir_len += eir_skb_put_data(skb, EIR_NAME_COMPLETE, name, name_len);
10511 else
10512 flags = MGMT_DEV_FOUND_NAME_REQUEST_FAILED;
10513
10514 ev->eir_len = cpu_to_le16(eir_len);
10515 ev->flags = cpu_to_le32(flags);
10516
10517 mgmt_event_skb(skb, NULL);
10518 }
10519
10520 void mgmt_discovering(struct hci_dev *hdev, u8 discovering)
10521 {
10522 struct mgmt_ev_discovering ev;
10523
10524 bt_dev_dbg(hdev, "discovering %u", discovering);
10525
10526 memset(&ev, 0, sizeof(ev));
10527 ev.type = hdev->discovery.type;
10528 ev.discovering = discovering;
10529
10530 mgmt_event(MGMT_EV_DISCOVERING, hdev, &ev, sizeof(ev), NULL);
10531 }
10532
10533 void mgmt_suspending(struct hci_dev *hdev, u8 state)
10534 {
10535 struct mgmt_ev_controller_suspend ev;
10536
10537 ev.suspend_state = state;
10538 mgmt_event(MGMT_EV_CONTROLLER_SUSPEND, hdev, &ev, sizeof(ev), NULL);
10539 }
10540
10541 void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr,
10542 u8 addr_type)
10543 {
10544 struct mgmt_ev_controller_resume ev;
10545
10546 ev.wake_reason = reason;
10547 if (bdaddr) {
10548 bacpy(&ev.addr.bdaddr, bdaddr);
10549 ev.addr.type = addr_type;
10550 } else {
10551 memset(&ev.addr, 0, sizeof(ev.addr));
10552 }
10553
10554 mgmt_event(MGMT_EV_CONTROLLER_RESUME, hdev, &ev, sizeof(ev), NULL);
10555 }
10556
10557 static struct hci_mgmt_chan chan = {
10558 .channel = HCI_CHANNEL_CONTROL,
10559 .handler_count = ARRAY_SIZE(mgmt_handlers),
10560 .handlers = mgmt_handlers,
10561 .hdev_init = mgmt_init_hdev,
10562 };
10563
10564 int mgmt_init(void)
10565 {
10566 return hci_mgmt_chan_register(&chan);
10567 }
10568
10569 void mgmt_exit(void)
10570 {
10571 hci_mgmt_chan_unregister(&chan);
10572 }
10573
10574 void mgmt_cleanup(struct sock *sk)
10575 {
10576 struct mgmt_mesh_tx *mesh_tx;
10577 struct hci_dev *hdev;
10578
10579 read_lock(&hci_dev_list_lock);
10580
10581 list_for_each_entry(hdev, &hci_dev_list, list) {
10582 do {
10583 mesh_tx = mgmt_mesh_next(hdev, sk);
10584
10585 if (mesh_tx)
10586 mesh_send_complete(hdev, mesh_tx, true);
10587 } while (mesh_tx);
10588 }
10589
10590 read_unlock(&hci_dev_list_lock);
10591 }
Kernel DRM miscellaneous fixes and cross-tree changes