Merge tag 'v3.10.55' into update
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / bluetooth / mgmt.c
1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3
4 Copyright (C) 2010 Nokia Corporation
5 Copyright (C) 2011-2012 Intel Corporation
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
15 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
16 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
17 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
18 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
20 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
22 SOFTWARE IS DISCLAIMED.
23 */
24
25 /* Bluetooth HCI Management interface */
26
27 #include <linux/module.h>
28 #include <asm/unaligned.h>
29
30 #include <net/bluetooth/bluetooth.h>
31 #include <net/bluetooth/hci_core.h>
32 #include <net/bluetooth/mgmt.h>
33 #include <net/bluetooth/smp.h>
34
35 bool enable_hs;
36
37 #define MGMT_VERSION 1
38 #define MGMT_REVISION 3
39
40 static const u16 mgmt_commands[] = {
41 MGMT_OP_READ_INDEX_LIST,
42 MGMT_OP_READ_INFO,
43 MGMT_OP_SET_POWERED,
44 MGMT_OP_SET_DISCOVERABLE,
45 MGMT_OP_SET_CONNECTABLE,
46 MGMT_OP_SET_FAST_CONNECTABLE,
47 MGMT_OP_SET_PAIRABLE,
48 MGMT_OP_SET_LINK_SECURITY,
49 MGMT_OP_SET_SSP,
50 MGMT_OP_SET_HS,
51 MGMT_OP_SET_LE,
52 MGMT_OP_SET_DEV_CLASS,
53 MGMT_OP_SET_LOCAL_NAME,
54 MGMT_OP_ADD_UUID,
55 MGMT_OP_REMOVE_UUID,
56 MGMT_OP_LOAD_LINK_KEYS,
57 MGMT_OP_LOAD_LONG_TERM_KEYS,
58 MGMT_OP_DISCONNECT,
59 MGMT_OP_GET_CONNECTIONS,
60 MGMT_OP_PIN_CODE_REPLY,
61 MGMT_OP_PIN_CODE_NEG_REPLY,
62 MGMT_OP_SET_IO_CAPABILITY,
63 MGMT_OP_PAIR_DEVICE,
64 MGMT_OP_CANCEL_PAIR_DEVICE,
65 MGMT_OP_UNPAIR_DEVICE,
66 MGMT_OP_USER_CONFIRM_REPLY,
67 MGMT_OP_USER_CONFIRM_NEG_REPLY,
68 MGMT_OP_USER_PASSKEY_REPLY,
69 MGMT_OP_USER_PASSKEY_NEG_REPLY,
70 MGMT_OP_READ_LOCAL_OOB_DATA,
71 MGMT_OP_ADD_REMOTE_OOB_DATA,
72 MGMT_OP_REMOVE_REMOTE_OOB_DATA,
73 MGMT_OP_START_DISCOVERY,
74 MGMT_OP_STOP_DISCOVERY,
75 MGMT_OP_CONFIRM_NAME,
76 MGMT_OP_BLOCK_DEVICE,
77 MGMT_OP_UNBLOCK_DEVICE,
78 MGMT_OP_SET_DEVICE_ID,
79 };
80
81 static const u16 mgmt_events[] = {
82 MGMT_EV_CONTROLLER_ERROR,
83 MGMT_EV_INDEX_ADDED,
84 MGMT_EV_INDEX_REMOVED,
85 MGMT_EV_NEW_SETTINGS,
86 MGMT_EV_CLASS_OF_DEV_CHANGED,
87 MGMT_EV_LOCAL_NAME_CHANGED,
88 MGMT_EV_NEW_LINK_KEY,
89 MGMT_EV_NEW_LONG_TERM_KEY,
90 MGMT_EV_DEVICE_CONNECTED,
91 MGMT_EV_DEVICE_DISCONNECTED,
92 MGMT_EV_CONNECT_FAILED,
93 MGMT_EV_PIN_CODE_REQUEST,
94 MGMT_EV_USER_CONFIRM_REQUEST,
95 MGMT_EV_USER_PASSKEY_REQUEST,
96 MGMT_EV_AUTH_FAILED,
97 MGMT_EV_DEVICE_FOUND,
98 MGMT_EV_DISCOVERING,
99 MGMT_EV_DEVICE_BLOCKED,
100 MGMT_EV_DEVICE_UNBLOCKED,
101 MGMT_EV_DEVICE_UNPAIRED,
102 MGMT_EV_PASSKEY_NOTIFY,
103 };
104
105 /*
106 * These LE scan and inquiry parameters were chosen according to LE General
107 * Discovery Procedure specification.
108 */
109 #define LE_SCAN_WIN 0x12
110 #define LE_SCAN_INT 0x12
111 #define LE_SCAN_TIMEOUT_LE_ONLY msecs_to_jiffies(10240)
112 #define LE_SCAN_TIMEOUT_BREDR_LE msecs_to_jiffies(5120)
113
114 #define INQUIRY_LEN_BREDR 0x08 /* TGAP(100) */
115 #define INQUIRY_LEN_BREDR_LE 0x04 /* TGAP(100)/2 */
116
117 #define CACHE_TIMEOUT msecs_to_jiffies(2 * 1000)
118
119 #define hdev_is_powered(hdev) (test_bit(HCI_UP, &hdev->flags) && \
120 !test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
121
122 struct pending_cmd {
123 struct list_head list;
124 u16 opcode;
125 int index;
126 void *param;
127 struct sock *sk;
128 void *user_data;
129 };
130
131 /* HCI to MGMT error code conversion table */
132 static u8 mgmt_status_table[] = {
133 MGMT_STATUS_SUCCESS,
134 MGMT_STATUS_UNKNOWN_COMMAND, /* Unknown Command */
135 MGMT_STATUS_NOT_CONNECTED, /* No Connection */
136 MGMT_STATUS_FAILED, /* Hardware Failure */
137 MGMT_STATUS_CONNECT_FAILED, /* Page Timeout */
138 MGMT_STATUS_AUTH_FAILED, /* Authentication Failed */
139 MGMT_STATUS_NOT_PAIRED, /* PIN or Key Missing */
140 MGMT_STATUS_NO_RESOURCES, /* Memory Full */
141 MGMT_STATUS_TIMEOUT, /* Connection Timeout */
142 MGMT_STATUS_NO_RESOURCES, /* Max Number of Connections */
143 MGMT_STATUS_NO_RESOURCES, /* Max Number of SCO Connections */
144 MGMT_STATUS_ALREADY_CONNECTED, /* ACL Connection Exists */
145 MGMT_STATUS_BUSY, /* Command Disallowed */
146 MGMT_STATUS_NO_RESOURCES, /* Rejected Limited Resources */
147 MGMT_STATUS_REJECTED, /* Rejected Security */
148 MGMT_STATUS_REJECTED, /* Rejected Personal */
149 MGMT_STATUS_TIMEOUT, /* Host Timeout */
150 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Feature */
151 MGMT_STATUS_INVALID_PARAMS, /* Invalid Parameters */
152 MGMT_STATUS_DISCONNECTED, /* OE User Ended Connection */
153 MGMT_STATUS_NO_RESOURCES, /* OE Low Resources */
154 MGMT_STATUS_DISCONNECTED, /* OE Power Off */
155 MGMT_STATUS_DISCONNECTED, /* Connection Terminated */
156 MGMT_STATUS_BUSY, /* Repeated Attempts */
157 MGMT_STATUS_REJECTED, /* Pairing Not Allowed */
158 MGMT_STATUS_FAILED, /* Unknown LMP PDU */
159 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported Remote Feature */
160 MGMT_STATUS_REJECTED, /* SCO Offset Rejected */
161 MGMT_STATUS_REJECTED, /* SCO Interval Rejected */
162 MGMT_STATUS_REJECTED, /* Air Mode Rejected */
163 MGMT_STATUS_INVALID_PARAMS, /* Invalid LMP Parameters */
164 MGMT_STATUS_FAILED, /* Unspecified Error */
165 MGMT_STATUS_NOT_SUPPORTED, /* Unsupported LMP Parameter Value */
166 MGMT_STATUS_FAILED, /* Role Change Not Allowed */
167 MGMT_STATUS_TIMEOUT, /* LMP Response Timeout */
168 MGMT_STATUS_FAILED, /* LMP Error Transaction Collision */
169 MGMT_STATUS_FAILED, /* LMP PDU Not Allowed */
170 MGMT_STATUS_REJECTED, /* Encryption Mode Not Accepted */
171 MGMT_STATUS_FAILED, /* Unit Link Key Used */
172 MGMT_STATUS_NOT_SUPPORTED, /* QoS Not Supported */
173 MGMT_STATUS_TIMEOUT, /* Instant Passed */
174 MGMT_STATUS_NOT_SUPPORTED, /* Pairing Not Supported */
175 MGMT_STATUS_FAILED, /* Transaction Collision */
176 MGMT_STATUS_INVALID_PARAMS, /* Unacceptable Parameter */
177 MGMT_STATUS_REJECTED, /* QoS Rejected */
178 MGMT_STATUS_NOT_SUPPORTED, /* Classification Not Supported */
179 MGMT_STATUS_REJECTED, /* Insufficient Security */
180 MGMT_STATUS_INVALID_PARAMS, /* Parameter Out Of Range */
181 MGMT_STATUS_BUSY, /* Role Switch Pending */
182 MGMT_STATUS_FAILED, /* Slot Violation */
183 MGMT_STATUS_FAILED, /* Role Switch Failed */
184 MGMT_STATUS_INVALID_PARAMS, /* EIR Too Large */
185 MGMT_STATUS_NOT_SUPPORTED, /* Simple Pairing Not Supported */
186 MGMT_STATUS_BUSY, /* Host Busy Pairing */
187 MGMT_STATUS_REJECTED, /* Rejected, No Suitable Channel */
188 MGMT_STATUS_BUSY, /* Controller Busy */
189 MGMT_STATUS_INVALID_PARAMS, /* Unsuitable Connection Interval */
190 MGMT_STATUS_TIMEOUT, /* Directed Advertising Timeout */
191 MGMT_STATUS_AUTH_FAILED, /* Terminated Due to MIC Failure */
192 MGMT_STATUS_CONNECT_FAILED, /* Connection Establishment Failed */
193 MGMT_STATUS_CONNECT_FAILED, /* MAC Connection Failed */
194 };
195
196 bool mgmt_valid_hdev(struct hci_dev *hdev)
197 {
198 return hdev->dev_type == HCI_BREDR;
199 }
200
201 static u8 mgmt_status(u8 hci_status)
202 {
203 if (hci_status < ARRAY_SIZE(mgmt_status_table))
204 return mgmt_status_table[hci_status];
205
206 return MGMT_STATUS_FAILED;
207 }
208
209 static int cmd_status(struct sock *sk, u16 index, u16 cmd, u8 status)
210 {
211 struct sk_buff *skb;
212 struct mgmt_hdr *hdr;
213 struct mgmt_ev_cmd_status *ev;
214 int err;
215
216 BT_DBG("sock %p, index %u, cmd %u, status %u", sk, index, cmd, status);
217
218 skb = alloc_skb(sizeof(*hdr) + sizeof(*ev), GFP_KERNEL);
219 if (!skb)
220 return -ENOMEM;
221
222 hdr = (void *) skb_put(skb, sizeof(*hdr));
223
224 hdr->opcode = __constant_cpu_to_le16(MGMT_EV_CMD_STATUS);
225 hdr->index = cpu_to_le16(index);
226 hdr->len = cpu_to_le16(sizeof(*ev));
227
228 ev = (void *) skb_put(skb, sizeof(*ev));
229 ev->status = status;
230 ev->opcode = cpu_to_le16(cmd);
231
232 err = sock_queue_rcv_skb(sk, skb);
233 if (err < 0)
234 kfree_skb(skb);
235
236 return err;
237 }
238
239 static int cmd_complete(struct sock *sk, u16 index, u16 cmd, u8 status,
240 void *rp, size_t rp_len)
241 {
242 struct sk_buff *skb;
243 struct mgmt_hdr *hdr;
244 struct mgmt_ev_cmd_complete *ev;
245 int err;
246
247 BT_DBG("sock %p", sk);
248
249 skb = alloc_skb(sizeof(*hdr) + sizeof(*ev) + rp_len, GFP_KERNEL);
250 if (!skb)
251 return -ENOMEM;
252
253 hdr = (void *) skb_put(skb, sizeof(*hdr));
254
255 hdr->opcode = __constant_cpu_to_le16(MGMT_EV_CMD_COMPLETE);
256 hdr->index = cpu_to_le16(index);
257 hdr->len = cpu_to_le16(sizeof(*ev) + rp_len);
258
259 ev = (void *) skb_put(skb, sizeof(*ev) + rp_len);
260 ev->opcode = cpu_to_le16(cmd);
261 ev->status = status;
262
263 if (rp)
264 memcpy(ev->data, rp, rp_len);
265
266 err = sock_queue_rcv_skb(sk, skb);
267 if (err < 0)
268 kfree_skb(skb);
269
270 return err;
271 }
272
273 static int read_version(struct sock *sk, struct hci_dev *hdev, void *data,
274 u16 data_len)
275 {
276 struct mgmt_rp_read_version rp;
277
278 BT_DBG("sock %p", sk);
279
280 rp.version = MGMT_VERSION;
281 rp.revision = __constant_cpu_to_le16(MGMT_REVISION);
282
283 return cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_VERSION, 0, &rp,
284 sizeof(rp));
285 }
286
287 static int read_commands(struct sock *sk, struct hci_dev *hdev, void *data,
288 u16 data_len)
289 {
290 struct mgmt_rp_read_commands *rp;
291 const u16 num_commands = ARRAY_SIZE(mgmt_commands);
292 const u16 num_events = ARRAY_SIZE(mgmt_events);
293 __le16 *opcode;
294 size_t rp_size;
295 int i, err;
296
297 BT_DBG("sock %p", sk);
298
299 rp_size = sizeof(*rp) + ((num_commands + num_events) * sizeof(u16));
300
301 rp = kmalloc(rp_size, GFP_KERNEL);
302 if (!rp)
303 return -ENOMEM;
304
305 rp->num_commands = __constant_cpu_to_le16(num_commands);
306 rp->num_events = __constant_cpu_to_le16(num_events);
307
308 for (i = 0, opcode = rp->opcodes; i < num_commands; i++, opcode++)
309 put_unaligned_le16(mgmt_commands[i], opcode);
310
311 for (i = 0; i < num_events; i++, opcode++)
312 put_unaligned_le16(mgmt_events[i], opcode);
313
314 err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_COMMANDS, 0, rp,
315 rp_size);
316 kfree(rp);
317
318 return err;
319 }
320
321 static int read_index_list(struct sock *sk, struct hci_dev *hdev, void *data,
322 u16 data_len)
323 {
324 struct mgmt_rp_read_index_list *rp;
325 struct hci_dev *d;
326 size_t rp_len;
327 u16 count;
328 int err;
329
330 BT_DBG("sock %p", sk);
331
332 read_lock(&hci_dev_list_lock);
333
334 count = 0;
335 list_for_each_entry(d, &hci_dev_list, list) {
336 if (!mgmt_valid_hdev(d))
337 continue;
338
339 count++;
340 }
341
342 rp_len = sizeof(*rp) + (2 * count);
343 rp = kmalloc(rp_len, GFP_ATOMIC);
344 if (!rp) {
345 read_unlock(&hci_dev_list_lock);
346 return -ENOMEM;
347 }
348
349 count = 0;
350 list_for_each_entry(d, &hci_dev_list, list) {
351 if (test_bit(HCI_SETUP, &d->dev_flags))
352 continue;
353
354 if (!mgmt_valid_hdev(d))
355 continue;
356
357 rp->index[count++] = cpu_to_le16(d->id);
358 BT_DBG("Added hci%u", d->id);
359 }
360
361 rp->num_controllers = cpu_to_le16(count);
362 rp_len = sizeof(*rp) + (2 * count);
363
364 read_unlock(&hci_dev_list_lock);
365
366 err = cmd_complete(sk, MGMT_INDEX_NONE, MGMT_OP_READ_INDEX_LIST, 0, rp,
367 rp_len);
368
369 kfree(rp);
370
371 return err;
372 }
373
374 static u32 get_supported_settings(struct hci_dev *hdev)
375 {
376 u32 settings = 0;
377
378 settings |= MGMT_SETTING_POWERED;
379 settings |= MGMT_SETTING_PAIRABLE;
380
381 if (lmp_ssp_capable(hdev))
382 settings |= MGMT_SETTING_SSP;
383
384 if (lmp_bredr_capable(hdev)) {
385 settings |= MGMT_SETTING_CONNECTABLE;
386 if (hdev->hci_ver >= BLUETOOTH_VER_1_2)
387 settings |= MGMT_SETTING_FAST_CONNECTABLE;
388 settings |= MGMT_SETTING_DISCOVERABLE;
389 settings |= MGMT_SETTING_BREDR;
390 settings |= MGMT_SETTING_LINK_SECURITY;
391 }
392
393 if (enable_hs)
394 settings |= MGMT_SETTING_HS;
395
396 if (lmp_le_capable(hdev))
397 settings |= MGMT_SETTING_LE;
398
399 return settings;
400 }
401
402 static u32 get_current_settings(struct hci_dev *hdev)
403 {
404 u32 settings = 0;
405
406 if (hdev_is_powered(hdev))
407 settings |= MGMT_SETTING_POWERED;
408
409 if (test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
410 settings |= MGMT_SETTING_CONNECTABLE;
411
412 if (test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags))
413 settings |= MGMT_SETTING_FAST_CONNECTABLE;
414
415 if (test_bit(HCI_DISCOVERABLE, &hdev->dev_flags))
416 settings |= MGMT_SETTING_DISCOVERABLE;
417
418 if (test_bit(HCI_PAIRABLE, &hdev->dev_flags))
419 settings |= MGMT_SETTING_PAIRABLE;
420
421 if (lmp_bredr_capable(hdev))
422 settings |= MGMT_SETTING_BREDR;
423
424 if (test_bit(HCI_LE_ENABLED, &hdev->dev_flags))
425 settings |= MGMT_SETTING_LE;
426
427 if (test_bit(HCI_LINK_SECURITY, &hdev->dev_flags))
428 settings |= MGMT_SETTING_LINK_SECURITY;
429
430 if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
431 settings |= MGMT_SETTING_SSP;
432
433 if (test_bit(HCI_HS_ENABLED, &hdev->dev_flags))
434 settings |= MGMT_SETTING_HS;
435
436 return settings;
437 }
438
439 #define PNP_INFO_SVCLASS_ID 0x1200
440
441 static u8 *create_uuid16_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
442 {
443 u8 *ptr = data, *uuids_start = NULL;
444 struct bt_uuid *uuid;
445
446 if (len < 4)
447 return ptr;
448
449 list_for_each_entry(uuid, &hdev->uuids, list) {
450 u16 uuid16;
451
452 if (uuid->size != 16)
453 continue;
454
455 uuid16 = get_unaligned_le16(&uuid->uuid[12]);
456 if (uuid16 < 0x1100)
457 continue;
458
459 if (uuid16 == PNP_INFO_SVCLASS_ID)
460 continue;
461
462 if (!uuids_start) {
463 uuids_start = ptr;
464 uuids_start[0] = 1;
465 uuids_start[1] = EIR_UUID16_ALL;
466 ptr += 2;
467 }
468
469 /* Stop if not enough space to put next UUID */
470 if ((ptr - data) + sizeof(u16) > len) {
471 uuids_start[1] = EIR_UUID16_SOME;
472 break;
473 }
474
475 *ptr++ = (uuid16 & 0x00ff);
476 *ptr++ = (uuid16 & 0xff00) >> 8;
477 uuids_start[0] += sizeof(uuid16);
478 }
479
480 return ptr;
481 }
482
483 static u8 *create_uuid32_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
484 {
485 u8 *ptr = data, *uuids_start = NULL;
486 struct bt_uuid *uuid;
487
488 if (len < 6)
489 return ptr;
490
491 list_for_each_entry(uuid, &hdev->uuids, list) {
492 if (uuid->size != 32)
493 continue;
494
495 if (!uuids_start) {
496 uuids_start = ptr;
497 uuids_start[0] = 1;
498 uuids_start[1] = EIR_UUID32_ALL;
499 ptr += 2;
500 }
501
502 /* Stop if not enough space to put next UUID */
503 if ((ptr - data) + sizeof(u32) > len) {
504 uuids_start[1] = EIR_UUID32_SOME;
505 break;
506 }
507
508 memcpy(ptr, &uuid->uuid[12], sizeof(u32));
509 ptr += sizeof(u32);
510 uuids_start[0] += sizeof(u32);
511 }
512
513 return ptr;
514 }
515
516 static u8 *create_uuid128_list(struct hci_dev *hdev, u8 *data, ptrdiff_t len)
517 {
518 u8 *ptr = data, *uuids_start = NULL;
519 struct bt_uuid *uuid;
520
521 if (len < 18)
522 return ptr;
523
524 list_for_each_entry(uuid, &hdev->uuids, list) {
525 if (uuid->size != 128)
526 continue;
527
528 if (!uuids_start) {
529 uuids_start = ptr;
530 uuids_start[0] = 1;
531 uuids_start[1] = EIR_UUID128_ALL;
532 ptr += 2;
533 }
534
535 /* Stop if not enough space to put next UUID */
536 if ((ptr - data) + 16 > len) {
537 uuids_start[1] = EIR_UUID128_SOME;
538 break;
539 }
540
541 memcpy(ptr, uuid->uuid, 16);
542 ptr += 16;
543 uuids_start[0] += 16;
544 }
545
546 return ptr;
547 }
548
549 static void create_eir(struct hci_dev *hdev, u8 *data)
550 {
551 u8 *ptr = data;
552 size_t name_len;
553
554 name_len = strlen(hdev->dev_name);
555
556 if (name_len > 0) {
557 /* EIR Data type */
558 if (name_len > 48) {
559 name_len = 48;
560 ptr[1] = EIR_NAME_SHORT;
561 } else
562 ptr[1] = EIR_NAME_COMPLETE;
563
564 /* EIR Data length */
565 ptr[0] = name_len + 1;
566
567 memcpy(ptr + 2, hdev->dev_name, name_len);
568
569 ptr += (name_len + 2);
570 }
571
572 if (hdev->inq_tx_power != HCI_TX_POWER_INVALID) {
573 ptr[0] = 2;
574 ptr[1] = EIR_TX_POWER;
575 ptr[2] = (u8) hdev->inq_tx_power;
576
577 ptr += 3;
578 }
579
580 if (hdev->devid_source > 0) {
581 ptr[0] = 9;
582 ptr[1] = EIR_DEVICE_ID;
583
584 put_unaligned_le16(hdev->devid_source, ptr + 2);
585 put_unaligned_le16(hdev->devid_vendor, ptr + 4);
586 put_unaligned_le16(hdev->devid_product, ptr + 6);
587 put_unaligned_le16(hdev->devid_version, ptr + 8);
588
589 ptr += 10;
590 }
591
592 ptr = create_uuid16_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
593 ptr = create_uuid32_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
594 ptr = create_uuid128_list(hdev, ptr, HCI_MAX_EIR_LENGTH - (ptr - data));
595 }
596
597 static void update_eir(struct hci_request *req)
598 {
599 struct hci_dev *hdev = req->hdev;
600 struct hci_cp_write_eir cp;
601
602 if (!hdev_is_powered(hdev))
603 return;
604
605 if (!lmp_ext_inq_capable(hdev))
606 return;
607
608 if (!test_bit(HCI_SSP_ENABLED, &hdev->dev_flags))
609 return;
610
611 if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
612 return;
613
614 memset(&cp, 0, sizeof(cp));
615
616 create_eir(hdev, cp.data);
617
618 if (memcmp(cp.data, hdev->eir, sizeof(cp.data)) == 0)
619 return;
620
621 memcpy(hdev->eir, cp.data, sizeof(cp.data));
622
623 hci_req_add(req, HCI_OP_WRITE_EIR, sizeof(cp), &cp);
624 }
625
626 static u8 get_service_classes(struct hci_dev *hdev)
627 {
628 struct bt_uuid *uuid;
629 u8 val = 0;
630
631 list_for_each_entry(uuid, &hdev->uuids, list)
632 val |= uuid->svc_hint;
633
634 return val;
635 }
636
637 static void update_class(struct hci_request *req)
638 {
639 struct hci_dev *hdev = req->hdev;
640 u8 cod[3];
641
642 BT_DBG("%s", hdev->name);
643
644 if (!hdev_is_powered(hdev))
645 return;
646
647 if (test_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
648 return;
649
650 cod[0] = hdev->minor_class;
651 cod[1] = hdev->major_class;
652 cod[2] = get_service_classes(hdev);
653
654 if (memcmp(cod, hdev->dev_class, 3) == 0)
655 return;
656
657 hci_req_add(req, HCI_OP_WRITE_CLASS_OF_DEV, sizeof(cod), cod);
658 }
659
660 static void service_cache_off(struct work_struct *work)
661 {
662 struct hci_dev *hdev = container_of(work, struct hci_dev,
663 service_cache.work);
664 struct hci_request req;
665
666 if (!test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags))
667 return;
668
669 hci_req_init(&req, hdev);
670
671 hci_dev_lock(hdev);
672
673 update_eir(&req);
674 update_class(&req);
675
676 hci_dev_unlock(hdev);
677
678 hci_req_run(&req, NULL);
679 }
680
681 static void mgmt_init_hdev(struct sock *sk, struct hci_dev *hdev)
682 {
683 if (test_and_set_bit(HCI_MGMT, &hdev->dev_flags))
684 return;
685
686 INIT_DELAYED_WORK(&hdev->service_cache, service_cache_off);
687
688 /* Non-mgmt controlled devices get this bit set
689 * implicitly so that pairing works for them, however
690 * for mgmt we require user-space to explicitly enable
691 * it
692 */
693 clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
694 }
695
696 static int read_controller_info(struct sock *sk, struct hci_dev *hdev,
697 void *data, u16 data_len)
698 {
699 struct mgmt_rp_read_info rp;
700
701 BT_DBG("sock %p %s", sk, hdev->name);
702
703 hci_dev_lock(hdev);
704
705 memset(&rp, 0, sizeof(rp));
706
707 bacpy(&rp.bdaddr, &hdev->bdaddr);
708
709 rp.version = hdev->hci_ver;
710 rp.manufacturer = cpu_to_le16(hdev->manufacturer);
711
712 rp.supported_settings = cpu_to_le32(get_supported_settings(hdev));
713 rp.current_settings = cpu_to_le32(get_current_settings(hdev));
714
715 memcpy(rp.dev_class, hdev->dev_class, 3);
716
717 memcpy(rp.name, hdev->dev_name, sizeof(hdev->dev_name));
718 memcpy(rp.short_name, hdev->short_name, sizeof(hdev->short_name));
719
720 hci_dev_unlock(hdev);
721
722 return cmd_complete(sk, hdev->id, MGMT_OP_READ_INFO, 0, &rp,
723 sizeof(rp));
724 }
725
726 static void mgmt_pending_free(struct pending_cmd *cmd)
727 {
728 sock_put(cmd->sk);
729 kfree(cmd->param);
730 kfree(cmd);
731 }
732
733 static struct pending_cmd *mgmt_pending_add(struct sock *sk, u16 opcode,
734 struct hci_dev *hdev, void *data,
735 u16 len)
736 {
737 struct pending_cmd *cmd;
738
739 cmd = kmalloc(sizeof(*cmd), GFP_KERNEL);
740 if (!cmd)
741 return NULL;
742
743 cmd->opcode = opcode;
744 cmd->index = hdev->id;
745
746 cmd->param = kmalloc(len, GFP_KERNEL);
747 if (!cmd->param) {
748 kfree(cmd);
749 return NULL;
750 }
751
752 if (data)
753 memcpy(cmd->param, data, len);
754
755 cmd->sk = sk;
756 sock_hold(sk);
757
758 list_add(&cmd->list, &hdev->mgmt_pending);
759
760 return cmd;
761 }
762
763 static void mgmt_pending_foreach(u16 opcode, struct hci_dev *hdev,
764 void (*cb)(struct pending_cmd *cmd,
765 void *data),
766 void *data)
767 {
768 struct pending_cmd *cmd, *tmp;
769
770 list_for_each_entry_safe(cmd, tmp, &hdev->mgmt_pending, list) {
771 if (opcode > 0 && cmd->opcode != opcode)
772 continue;
773
774 cb(cmd, data);
775 }
776 }
777
778 static struct pending_cmd *mgmt_pending_find(u16 opcode, struct hci_dev *hdev)
779 {
780 struct pending_cmd *cmd;
781
782 list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
783 if (cmd->opcode == opcode)
784 return cmd;
785 }
786
787 return NULL;
788 }
789
790 static void mgmt_pending_remove(struct pending_cmd *cmd)
791 {
792 list_del(&cmd->list);
793 mgmt_pending_free(cmd);
794 }
795
796 static int send_settings_rsp(struct sock *sk, u16 opcode, struct hci_dev *hdev)
797 {
798 __le32 settings = cpu_to_le32(get_current_settings(hdev));
799
800 return cmd_complete(sk, hdev->id, opcode, 0, &settings,
801 sizeof(settings));
802 }
803
804 static int set_powered(struct sock *sk, struct hci_dev *hdev, void *data,
805 u16 len)
806 {
807 struct mgmt_mode *cp = data;
808 struct pending_cmd *cmd;
809 int err;
810
811 BT_DBG("request for %s", hdev->name);
812
813 if (cp->val != 0x00 && cp->val != 0x01)
814 return cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
815 MGMT_STATUS_INVALID_PARAMS);
816
817 hci_dev_lock(hdev);
818
819 if (test_and_clear_bit(HCI_AUTO_OFF, &hdev->dev_flags)) {
820 cancel_delayed_work(&hdev->power_off);
821
822 if (cp->val) {
823 mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev,
824 data, len);
825 err = mgmt_powered(hdev, 1);
826 goto failed;
827 }
828 }
829
830 if (!!cp->val == hdev_is_powered(hdev)) {
831 err = send_settings_rsp(sk, MGMT_OP_SET_POWERED, hdev);
832 goto failed;
833 }
834
835 if (mgmt_pending_find(MGMT_OP_SET_POWERED, hdev)) {
836 err = cmd_status(sk, hdev->id, MGMT_OP_SET_POWERED,
837 MGMT_STATUS_BUSY);
838 goto failed;
839 }
840
841 cmd = mgmt_pending_add(sk, MGMT_OP_SET_POWERED, hdev, data, len);
842 if (!cmd) {
843 err = -ENOMEM;
844 goto failed;
845 }
846
847 if (cp->val)
848 queue_work(hdev->req_workqueue, &hdev->power_on);
849 else
850 queue_work(hdev->req_workqueue, &hdev->power_off.work);
851
852 err = 0;
853
854 failed:
855 hci_dev_unlock(hdev);
856 return err;
857 }
858
859 static int mgmt_event(u16 event, struct hci_dev *hdev, void *data, u16 data_len,
860 struct sock *skip_sk)
861 {
862 struct sk_buff *skb;
863 struct mgmt_hdr *hdr;
864
865 skb = alloc_skb(sizeof(*hdr) + data_len, GFP_KERNEL);
866 if (!skb)
867 return -ENOMEM;
868
869 hdr = (void *) skb_put(skb, sizeof(*hdr));
870 hdr->opcode = cpu_to_le16(event);
871 if (hdev)
872 hdr->index = cpu_to_le16(hdev->id);
873 else
874 hdr->index = __constant_cpu_to_le16(MGMT_INDEX_NONE);
875 hdr->len = cpu_to_le16(data_len);
876
877 if (data)
878 memcpy(skb_put(skb, data_len), data, data_len);
879
880 /* Time stamp */
881 __net_timestamp(skb);
882
883 hci_send_to_control(skb, skip_sk);
884 kfree_skb(skb);
885
886 return 0;
887 }
888
889 static int new_settings(struct hci_dev *hdev, struct sock *skip)
890 {
891 __le32 ev;
892
893 ev = cpu_to_le32(get_current_settings(hdev));
894
895 return mgmt_event(MGMT_EV_NEW_SETTINGS, hdev, &ev, sizeof(ev), skip);
896 }
897
898 static int set_discoverable(struct sock *sk, struct hci_dev *hdev, void *data,
899 u16 len)
900 {
901 struct mgmt_cp_set_discoverable *cp = data;
902 struct pending_cmd *cmd;
903 u16 timeout;
904 u8 scan;
905 int err;
906
907 BT_DBG("request for %s", hdev->name);
908
909 if (!lmp_bredr_capable(hdev))
910 return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
911 MGMT_STATUS_NOT_SUPPORTED);
912
913 if (cp->val != 0x00 && cp->val != 0x01)
914 return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
915 MGMT_STATUS_INVALID_PARAMS);
916
917 timeout = __le16_to_cpu(cp->timeout);
918 if (!cp->val && timeout > 0)
919 return cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
920 MGMT_STATUS_INVALID_PARAMS);
921
922 hci_dev_lock(hdev);
923
924 if (!hdev_is_powered(hdev) && timeout > 0) {
925 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
926 MGMT_STATUS_NOT_POWERED);
927 goto failed;
928 }
929
930 if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
931 mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
932 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
933 MGMT_STATUS_BUSY);
934 goto failed;
935 }
936
937 if (!test_bit(HCI_CONNECTABLE, &hdev->dev_flags)) {
938 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DISCOVERABLE,
939 MGMT_STATUS_REJECTED);
940 goto failed;
941 }
942
943 if (!hdev_is_powered(hdev)) {
944 bool changed = false;
945
946 if (!!cp->val != test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
947 change_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
948 changed = true;
949 }
950
951 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
952 if (err < 0)
953 goto failed;
954
955 if (changed)
956 err = new_settings(hdev, sk);
957
958 goto failed;
959 }
960
961 if (!!cp->val == test_bit(HCI_DISCOVERABLE, &hdev->dev_flags)) {
962 if (hdev->discov_timeout > 0) {
963 cancel_delayed_work(&hdev->discov_off);
964 hdev->discov_timeout = 0;
965 }
966
967 if (cp->val && timeout > 0) {
968 hdev->discov_timeout = timeout;
969 queue_delayed_work(hdev->workqueue, &hdev->discov_off,
970 msecs_to_jiffies(hdev->discov_timeout * 1000));
971 }
972
973 err = send_settings_rsp(sk, MGMT_OP_SET_DISCOVERABLE, hdev);
974 goto failed;
975 }
976
977 cmd = mgmt_pending_add(sk, MGMT_OP_SET_DISCOVERABLE, hdev, data, len);
978 if (!cmd) {
979 err = -ENOMEM;
980 goto failed;
981 }
982
983 scan = SCAN_PAGE;
984
985 if (cp->val)
986 scan |= SCAN_INQUIRY;
987 else
988 cancel_delayed_work(&hdev->discov_off);
989
990 err = hci_send_cmd(hdev, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
991 if (err < 0)
992 mgmt_pending_remove(cmd);
993
994 if (cp->val)
995 hdev->discov_timeout = timeout;
996
997 failed:
998 hci_dev_unlock(hdev);
999 return err;
1000 }
1001
1002 static void write_fast_connectable(struct hci_request *req, bool enable)
1003 {
1004 struct hci_dev *hdev = req->hdev;
1005 struct hci_cp_write_page_scan_activity acp;
1006 u8 type;
1007
1008 if (hdev->hci_ver < BLUETOOTH_VER_1_2)
1009 return;
1010
1011 if (enable) {
1012 type = PAGE_SCAN_TYPE_INTERLACED;
1013
1014 /* 160 msec page scan interval */
1015 acp.interval = __constant_cpu_to_le16(0x0100);
1016 } else {
1017 type = PAGE_SCAN_TYPE_STANDARD; /* default */
1018
1019 /* default 1.28 sec page scan */
1020 acp.interval = __constant_cpu_to_le16(0x0800);
1021 }
1022
1023 acp.window = __constant_cpu_to_le16(0x0012);
1024
1025 if (__cpu_to_le16(hdev->page_scan_interval) != acp.interval ||
1026 __cpu_to_le16(hdev->page_scan_window) != acp.window)
1027 hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_ACTIVITY,
1028 sizeof(acp), &acp);
1029
1030 if (hdev->page_scan_type != type)
1031 hci_req_add(req, HCI_OP_WRITE_PAGE_SCAN_TYPE, 1, &type);
1032 }
1033
1034 static void set_connectable_complete(struct hci_dev *hdev, u8 status)
1035 {
1036 struct pending_cmd *cmd;
1037
1038 BT_DBG("status 0x%02x", status);
1039
1040 hci_dev_lock(hdev);
1041
1042 cmd = mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev);
1043 if (!cmd)
1044 goto unlock;
1045
1046 send_settings_rsp(cmd->sk, MGMT_OP_SET_CONNECTABLE, hdev);
1047
1048 mgmt_pending_remove(cmd);
1049
1050 unlock:
1051 hci_dev_unlock(hdev);
1052 }
1053
1054 static int set_connectable(struct sock *sk, struct hci_dev *hdev, void *data,
1055 u16 len)
1056 {
1057 struct mgmt_mode *cp = data;
1058 struct pending_cmd *cmd;
1059 struct hci_request req;
1060 u8 scan;
1061 int err;
1062
1063 BT_DBG("request for %s", hdev->name);
1064
1065 if (!lmp_bredr_capable(hdev))
1066 return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
1067 MGMT_STATUS_NOT_SUPPORTED);
1068
1069 if (cp->val != 0x00 && cp->val != 0x01)
1070 return cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
1071 MGMT_STATUS_INVALID_PARAMS);
1072
1073 hci_dev_lock(hdev);
1074
1075 if (!hdev_is_powered(hdev)) {
1076 bool changed = false;
1077
1078 if (!!cp->val != test_bit(HCI_CONNECTABLE, &hdev->dev_flags))
1079 changed = true;
1080
1081 if (cp->val) {
1082 set_bit(HCI_CONNECTABLE, &hdev->dev_flags);
1083 } else {
1084 clear_bit(HCI_CONNECTABLE, &hdev->dev_flags);
1085 clear_bit(HCI_DISCOVERABLE, &hdev->dev_flags);
1086 }
1087
1088 err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
1089 if (err < 0)
1090 goto failed;
1091
1092 if (changed)
1093 err = new_settings(hdev, sk);
1094
1095 goto failed;
1096 }
1097
1098 if (mgmt_pending_find(MGMT_OP_SET_DISCOVERABLE, hdev) ||
1099 mgmt_pending_find(MGMT_OP_SET_CONNECTABLE, hdev)) {
1100 err = cmd_status(sk, hdev->id, MGMT_OP_SET_CONNECTABLE,
1101 MGMT_STATUS_BUSY);
1102 goto failed;
1103 }
1104
1105 if (!!cp->val == test_bit(HCI_PSCAN, &hdev->flags)) {
1106 err = send_settings_rsp(sk, MGMT_OP_SET_CONNECTABLE, hdev);
1107 goto failed;
1108 }
1109
1110 cmd = mgmt_pending_add(sk, MGMT_OP_SET_CONNECTABLE, hdev, data, len);
1111 if (!cmd) {
1112 err = -ENOMEM;
1113 goto failed;
1114 }
1115
1116 if (cp->val) {
1117 scan = SCAN_PAGE;
1118 } else {
1119 scan = 0;
1120
1121 if (test_bit(HCI_ISCAN, &hdev->flags) &&
1122 hdev->discov_timeout > 0)
1123 cancel_delayed_work(&hdev->discov_off);
1124 }
1125
1126 hci_req_init(&req, hdev);
1127
1128 hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan);
1129
1130 /* If we're going from non-connectable to connectable or
1131 * vice-versa when fast connectable is enabled ensure that fast
1132 * connectable gets disabled. write_fast_connectable won't do
1133 * anything if the page scan parameters are already what they
1134 * should be.
1135 */
1136 if (cp->val || test_bit(HCI_FAST_CONNECTABLE, &hdev->dev_flags))
1137 write_fast_connectable(&req, false);
1138
1139 err = hci_req_run(&req, set_connectable_complete);
1140 if (err < 0)
1141 mgmt_pending_remove(cmd);
1142
1143 failed:
1144 hci_dev_unlock(hdev);
1145 return err;
1146 }
1147
1148 static int set_pairable(struct sock *sk, struct hci_dev *hdev, void *data,
1149 u16 len)
1150 {
1151 struct mgmt_mode *cp = data;
1152 int err;
1153
1154 BT_DBG("request for %s", hdev->name);
1155
1156 if (cp->val != 0x00 && cp->val != 0x01)
1157 return cmd_status(sk, hdev->id, MGMT_OP_SET_PAIRABLE,
1158 MGMT_STATUS_INVALID_PARAMS);
1159
1160 hci_dev_lock(hdev);
1161
1162 if (cp->val)
1163 set_bit(HCI_PAIRABLE, &hdev->dev_flags);
1164 else
1165 clear_bit(HCI_PAIRABLE, &hdev->dev_flags);
1166
1167 err = send_settings_rsp(sk, MGMT_OP_SET_PAIRABLE, hdev);
1168 if (err < 0)
1169 goto failed;
1170
1171 err = new_settings(hdev, sk);
1172
1173 failed:
1174 hci_dev_unlock(hdev);
1175 return err;
1176 }
1177
1178 static int set_link_security(struct sock *sk, struct hci_dev *hdev, void *data,
1179 u16 len)
1180 {
1181 struct mgmt_mode *cp = data;
1182 struct pending_cmd *cmd;
1183 u8 val;
1184 int err;
1185
1186 BT_DBG("request for %s", hdev->name);
1187
1188 if (!lmp_bredr_capable(hdev))
1189 return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
1190 MGMT_STATUS_NOT_SUPPORTED);
1191
1192 if (cp->val != 0x00 && cp->val != 0x01)
1193 return cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
1194 MGMT_STATUS_INVALID_PARAMS);
1195
1196 hci_dev_lock(hdev);
1197
1198 if (!hdev_is_powered(hdev)) {
1199 bool changed = false;
1200
1201 if (!!cp->val != test_bit(HCI_LINK_SECURITY,
1202 &hdev->dev_flags)) {
1203 change_bit(HCI_LINK_SECURITY, &hdev->dev_flags);
1204 changed = true;
1205 }
1206
1207 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
1208 if (err < 0)
1209 goto failed;
1210
1211 if (changed)
1212 err = new_settings(hdev, sk);
1213
1214 goto failed;
1215 }
1216
1217 if (mgmt_pending_find(MGMT_OP_SET_LINK_SECURITY, hdev)) {
1218 err = cmd_status(sk, hdev->id, MGMT_OP_SET_LINK_SECURITY,
1219 MGMT_STATUS_BUSY);
1220 goto failed;
1221 }
1222
1223 val = !!cp->val;
1224
1225 if (test_bit(HCI_AUTH, &hdev->flags) == val) {
1226 err = send_settings_rsp(sk, MGMT_OP_SET_LINK_SECURITY, hdev);
1227 goto failed;
1228 }
1229
1230 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LINK_SECURITY, hdev, data, len);
1231 if (!cmd) {
1232 err = -ENOMEM;
1233 goto failed;
1234 }
1235
1236 err = hci_send_cmd(hdev, HCI_OP_WRITE_AUTH_ENABLE, sizeof(val), &val);
1237 if (err < 0) {
1238 mgmt_pending_remove(cmd);
1239 goto failed;
1240 }
1241
1242 failed:
1243 hci_dev_unlock(hdev);
1244 return err;
1245 }
1246
1247 static int set_ssp(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1248 {
1249 struct mgmt_mode *cp = data;
1250 struct pending_cmd *cmd;
1251 u8 val;
1252 int err;
1253
1254 BT_DBG("request for %s", hdev->name);
1255
1256 if (!lmp_ssp_capable(hdev))
1257 return cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
1258 MGMT_STATUS_NOT_SUPPORTED);
1259
1260 if (cp->val != 0x00 && cp->val != 0x01)
1261 return cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
1262 MGMT_STATUS_INVALID_PARAMS);
1263
1264 hci_dev_lock(hdev);
1265
1266 val = !!cp->val;
1267
1268 if (!hdev_is_powered(hdev)) {
1269 bool changed = false;
1270
1271 if (val != test_bit(HCI_SSP_ENABLED, &hdev->dev_flags)) {
1272 change_bit(HCI_SSP_ENABLED, &hdev->dev_flags);
1273 changed = true;
1274 }
1275
1276 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
1277 if (err < 0)
1278 goto failed;
1279
1280 if (changed)
1281 err = new_settings(hdev, sk);
1282
1283 goto failed;
1284 }
1285
1286 if (mgmt_pending_find(MGMT_OP_SET_SSP, hdev)) {
1287 err = cmd_status(sk, hdev->id, MGMT_OP_SET_SSP,
1288 MGMT_STATUS_BUSY);
1289 goto failed;
1290 }
1291
1292 if (test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) == val) {
1293 err = send_settings_rsp(sk, MGMT_OP_SET_SSP, hdev);
1294 goto failed;
1295 }
1296
1297 cmd = mgmt_pending_add(sk, MGMT_OP_SET_SSP, hdev, data, len);
1298 if (!cmd) {
1299 err = -ENOMEM;
1300 goto failed;
1301 }
1302
1303 err = hci_send_cmd(hdev, HCI_OP_WRITE_SSP_MODE, sizeof(val), &val);
1304 if (err < 0) {
1305 mgmt_pending_remove(cmd);
1306 goto failed;
1307 }
1308
1309 failed:
1310 hci_dev_unlock(hdev);
1311 return err;
1312 }
1313
1314 static int set_hs(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1315 {
1316 struct mgmt_mode *cp = data;
1317
1318 BT_DBG("request for %s", hdev->name);
1319
1320 if (!enable_hs)
1321 return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
1322 MGMT_STATUS_NOT_SUPPORTED);
1323
1324 if (cp->val != 0x00 && cp->val != 0x01)
1325 return cmd_status(sk, hdev->id, MGMT_OP_SET_HS,
1326 MGMT_STATUS_INVALID_PARAMS);
1327
1328 if (cp->val)
1329 set_bit(HCI_HS_ENABLED, &hdev->dev_flags);
1330 else
1331 clear_bit(HCI_HS_ENABLED, &hdev->dev_flags);
1332
1333 return send_settings_rsp(sk, MGMT_OP_SET_HS, hdev);
1334 }
1335
1336 static int set_le(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1337 {
1338 struct mgmt_mode *cp = data;
1339 struct hci_cp_write_le_host_supported hci_cp;
1340 struct pending_cmd *cmd;
1341 int err;
1342 u8 val, enabled;
1343
1344 BT_DBG("request for %s", hdev->name);
1345
1346 if (!lmp_le_capable(hdev))
1347 return cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
1348 MGMT_STATUS_NOT_SUPPORTED);
1349
1350 if (cp->val != 0x00 && cp->val != 0x01)
1351 return cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
1352 MGMT_STATUS_INVALID_PARAMS);
1353
1354 /* LE-only devices do not allow toggling LE on/off */
1355 if (!lmp_bredr_capable(hdev))
1356 return cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
1357 MGMT_STATUS_REJECTED);
1358
1359 hci_dev_lock(hdev);
1360
1361 val = !!cp->val;
1362 enabled = lmp_host_le_capable(hdev);
1363
1364 if (!hdev_is_powered(hdev) || val == enabled) {
1365 bool changed = false;
1366
1367 if (val != test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
1368 change_bit(HCI_LE_ENABLED, &hdev->dev_flags);
1369 changed = true;
1370 }
1371
1372 err = send_settings_rsp(sk, MGMT_OP_SET_LE, hdev);
1373 if (err < 0)
1374 goto unlock;
1375
1376 if (changed)
1377 err = new_settings(hdev, sk);
1378
1379 goto unlock;
1380 }
1381
1382 if (mgmt_pending_find(MGMT_OP_SET_LE, hdev)) {
1383 err = cmd_status(sk, hdev->id, MGMT_OP_SET_LE,
1384 MGMT_STATUS_BUSY);
1385 goto unlock;
1386 }
1387
1388 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LE, hdev, data, len);
1389 if (!cmd) {
1390 err = -ENOMEM;
1391 goto unlock;
1392 }
1393
1394 memset(&hci_cp, 0, sizeof(hci_cp));
1395
1396 if (val) {
1397 hci_cp.le = val;
1398 hci_cp.simul = lmp_le_br_capable(hdev);
1399 }
1400
1401 err = hci_send_cmd(hdev, HCI_OP_WRITE_LE_HOST_SUPPORTED, sizeof(hci_cp),
1402 &hci_cp);
1403 if (err < 0)
1404 mgmt_pending_remove(cmd);
1405
1406 unlock:
1407 hci_dev_unlock(hdev);
1408 return err;
1409 }
1410
1411 /* This is a helper function to test for pending mgmt commands that can
1412 * cause CoD or EIR HCI commands. We can only allow one such pending
1413 * mgmt command at a time since otherwise we cannot easily track what
1414 * the current values are, will be, and based on that calculate if a new
1415 * HCI command needs to be sent and if yes with what value.
1416 */
1417 static bool pending_eir_or_class(struct hci_dev *hdev)
1418 {
1419 struct pending_cmd *cmd;
1420
1421 list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
1422 switch (cmd->opcode) {
1423 case MGMT_OP_ADD_UUID:
1424 case MGMT_OP_REMOVE_UUID:
1425 case MGMT_OP_SET_DEV_CLASS:
1426 case MGMT_OP_SET_POWERED:
1427 return true;
1428 }
1429 }
1430
1431 return false;
1432 }
1433
1434 static const u8 bluetooth_base_uuid[] = {
1435 0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80,
1436 0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1437 };
1438
1439 static u8 get_uuid_size(const u8 *uuid)
1440 {
1441 u32 val;
1442
1443 if (memcmp(uuid, bluetooth_base_uuid, 12))
1444 return 128;
1445
1446 val = get_unaligned_le32(&uuid[12]);
1447 if (val > 0xffff)
1448 return 32;
1449
1450 return 16;
1451 }
1452
1453 static void mgmt_class_complete(struct hci_dev *hdev, u16 mgmt_op, u8 status)
1454 {
1455 struct pending_cmd *cmd;
1456
1457 hci_dev_lock(hdev);
1458
1459 cmd = mgmt_pending_find(mgmt_op, hdev);
1460 if (!cmd)
1461 goto unlock;
1462
1463 cmd_complete(cmd->sk, cmd->index, cmd->opcode, mgmt_status(status),
1464 hdev->dev_class, 3);
1465
1466 mgmt_pending_remove(cmd);
1467
1468 unlock:
1469 hci_dev_unlock(hdev);
1470 }
1471
1472 static void add_uuid_complete(struct hci_dev *hdev, u8 status)
1473 {
1474 BT_DBG("status 0x%02x", status);
1475
1476 mgmt_class_complete(hdev, MGMT_OP_ADD_UUID, status);
1477 }
1478
1479 static int add_uuid(struct sock *sk, struct hci_dev *hdev, void *data, u16 len)
1480 {
1481 struct mgmt_cp_add_uuid *cp = data;
1482 struct pending_cmd *cmd;
1483 struct hci_request req;
1484 struct bt_uuid *uuid;
1485 int err;
1486
1487 BT_DBG("request for %s", hdev->name);
1488
1489 hci_dev_lock(hdev);
1490
1491 if (pending_eir_or_class(hdev)) {
1492 err = cmd_status(sk, hdev->id, MGMT_OP_ADD_UUID,
1493 MGMT_STATUS_BUSY);
1494 goto failed;
1495 }
1496
1497 uuid = kmalloc(sizeof(*uuid), GFP_KERNEL);
1498 if (!uuid) {
1499 err = -ENOMEM;
1500 goto failed;
1501 }
1502
1503 memcpy(uuid->uuid, cp->uuid, 16);
1504 uuid->svc_hint = cp->svc_hint;
1505 uuid->size = get_uuid_size(cp->uuid);
1506
1507 list_add_tail(&uuid->list, &hdev->uuids);
1508
1509 hci_req_init(&req, hdev);
1510
1511 update_class(&req);
1512 update_eir(&req);
1513
1514 err = hci_req_run(&req, add_uuid_complete);
1515 if (err < 0) {
1516 if (err != -ENODATA)
1517 goto failed;
1518
1519 err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_UUID, 0,
1520 hdev->dev_class, 3);
1521 goto failed;
1522 }
1523
1524 cmd = mgmt_pending_add(sk, MGMT_OP_ADD_UUID, hdev, data, len);
1525 if (!cmd) {
1526 err = -ENOMEM;
1527 goto failed;
1528 }
1529
1530 err = 0;
1531
1532 failed:
1533 hci_dev_unlock(hdev);
1534 return err;
1535 }
1536
1537 static bool enable_service_cache(struct hci_dev *hdev)
1538 {
1539 if (!hdev_is_powered(hdev))
1540 return false;
1541
1542 if (!test_and_set_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) {
1543 queue_delayed_work(hdev->workqueue, &hdev->service_cache,
1544 CACHE_TIMEOUT);
1545 return true;
1546 }
1547
1548 return false;
1549 }
1550
1551 static void remove_uuid_complete(struct hci_dev *hdev, u8 status)
1552 {
1553 BT_DBG("status 0x%02x", status);
1554
1555 mgmt_class_complete(hdev, MGMT_OP_REMOVE_UUID, status);
1556 }
1557
1558 static int remove_uuid(struct sock *sk, struct hci_dev *hdev, void *data,
1559 u16 len)
1560 {
1561 struct mgmt_cp_remove_uuid *cp = data;
1562 struct pending_cmd *cmd;
1563 struct bt_uuid *match, *tmp;
1564 u8 bt_uuid_any[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
1565 struct hci_request req;
1566 int err, found;
1567
1568 BT_DBG("request for %s", hdev->name);
1569
1570 hci_dev_lock(hdev);
1571
1572 if (pending_eir_or_class(hdev)) {
1573 err = cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
1574 MGMT_STATUS_BUSY);
1575 goto unlock;
1576 }
1577
1578 if (memcmp(cp->uuid, bt_uuid_any, 16) == 0) {
1579 err = hci_uuids_clear(hdev);
1580
1581 if (enable_service_cache(hdev)) {
1582 err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID,
1583 0, hdev->dev_class, 3);
1584 goto unlock;
1585 }
1586
1587 goto update_class;
1588 }
1589
1590 found = 0;
1591
1592 list_for_each_entry_safe(match, tmp, &hdev->uuids, list) {
1593 if (memcmp(match->uuid, cp->uuid, 16) != 0)
1594 continue;
1595
1596 list_del(&match->list);
1597 kfree(match);
1598 found++;
1599 }
1600
1601 if (found == 0) {
1602 err = cmd_status(sk, hdev->id, MGMT_OP_REMOVE_UUID,
1603 MGMT_STATUS_INVALID_PARAMS);
1604 goto unlock;
1605 }
1606
1607 update_class:
1608 hci_req_init(&req, hdev);
1609
1610 update_class(&req);
1611 update_eir(&req);
1612
1613 err = hci_req_run(&req, remove_uuid_complete);
1614 if (err < 0) {
1615 if (err != -ENODATA)
1616 goto unlock;
1617
1618 err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_UUID, 0,
1619 hdev->dev_class, 3);
1620 goto unlock;
1621 }
1622
1623 cmd = mgmt_pending_add(sk, MGMT_OP_REMOVE_UUID, hdev, data, len);
1624 if (!cmd) {
1625 err = -ENOMEM;
1626 goto unlock;
1627 }
1628
1629 err = 0;
1630
1631 unlock:
1632 hci_dev_unlock(hdev);
1633 return err;
1634 }
1635
1636 static void set_class_complete(struct hci_dev *hdev, u8 status)
1637 {
1638 BT_DBG("status 0x%02x", status);
1639
1640 mgmt_class_complete(hdev, MGMT_OP_SET_DEV_CLASS, status);
1641 }
1642
1643 static int set_dev_class(struct sock *sk, struct hci_dev *hdev, void *data,
1644 u16 len)
1645 {
1646 struct mgmt_cp_set_dev_class *cp = data;
1647 struct pending_cmd *cmd;
1648 struct hci_request req;
1649 int err;
1650
1651 BT_DBG("request for %s", hdev->name);
1652
1653 if (!lmp_bredr_capable(hdev))
1654 return cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
1655 MGMT_STATUS_NOT_SUPPORTED);
1656
1657 hci_dev_lock(hdev);
1658
1659 if (pending_eir_or_class(hdev)) {
1660 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
1661 MGMT_STATUS_BUSY);
1662 goto unlock;
1663 }
1664
1665 if ((cp->minor & 0x03) != 0 || (cp->major & 0xe0) != 0) {
1666 err = cmd_status(sk, hdev->id, MGMT_OP_SET_DEV_CLASS,
1667 MGMT_STATUS_INVALID_PARAMS);
1668 goto unlock;
1669 }
1670
1671 hdev->major_class = cp->major;
1672 hdev->minor_class = cp->minor;
1673
1674 if (!hdev_is_powered(hdev)) {
1675 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
1676 hdev->dev_class, 3);
1677 goto unlock;
1678 }
1679
1680 hci_req_init(&req, hdev);
1681
1682 if (test_and_clear_bit(HCI_SERVICE_CACHE, &hdev->dev_flags)) {
1683 hci_dev_unlock(hdev);
1684 cancel_delayed_work_sync(&hdev->service_cache);
1685 hci_dev_lock(hdev);
1686 update_eir(&req);
1687 }
1688
1689 update_class(&req);
1690
1691 err = hci_req_run(&req, set_class_complete);
1692 if (err < 0) {
1693 if (err != -ENODATA)
1694 goto unlock;
1695
1696 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_DEV_CLASS, 0,
1697 hdev->dev_class, 3);
1698 goto unlock;
1699 }
1700
1701 cmd = mgmt_pending_add(sk, MGMT_OP_SET_DEV_CLASS, hdev, data, len);
1702 if (!cmd) {
1703 err = -ENOMEM;
1704 goto unlock;
1705 }
1706
1707 err = 0;
1708
1709 unlock:
1710 hci_dev_unlock(hdev);
1711 return err;
1712 }
1713
1714 static int load_link_keys(struct sock *sk, struct hci_dev *hdev, void *data,
1715 u16 len)
1716 {
1717 struct mgmt_cp_load_link_keys *cp = data;
1718 u16 key_count, expected_len;
1719 int i;
1720
1721 key_count = __le16_to_cpu(cp->key_count);
1722
1723 expected_len = sizeof(*cp) + key_count *
1724 sizeof(struct mgmt_link_key_info);
1725 if (expected_len != len) {
1726 BT_ERR("load_link_keys: expected %u bytes, got %u bytes",
1727 len, expected_len);
1728 return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
1729 MGMT_STATUS_INVALID_PARAMS);
1730 }
1731
1732 if (cp->debug_keys != 0x00 && cp->debug_keys != 0x01)
1733 return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
1734 MGMT_STATUS_INVALID_PARAMS);
1735
1736 BT_DBG("%s debug_keys %u key_count %u", hdev->name, cp->debug_keys,
1737 key_count);
1738
1739 for (i = 0; i < key_count; i++) {
1740 struct mgmt_link_key_info *key = &cp->keys[i];
1741
1742 if (key->addr.type != BDADDR_BREDR)
1743 return cmd_status(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS,
1744 MGMT_STATUS_INVALID_PARAMS);
1745 }
1746
1747 hci_dev_lock(hdev);
1748
1749 hci_link_keys_clear(hdev);
1750
1751 set_bit(HCI_LINK_KEYS, &hdev->dev_flags);
1752
1753 if (cp->debug_keys)
1754 set_bit(HCI_DEBUG_KEYS, &hdev->dev_flags);
1755 else
1756 clear_bit(HCI_DEBUG_KEYS, &hdev->dev_flags);
1757
1758 for (i = 0; i < key_count; i++) {
1759 struct mgmt_link_key_info *key = &cp->keys[i];
1760
1761 hci_add_link_key(hdev, NULL, 0, &key->addr.bdaddr, key->val,
1762 key->type, key->pin_len);
1763 }
1764
1765 cmd_complete(sk, hdev->id, MGMT_OP_LOAD_LINK_KEYS, 0, NULL, 0);
1766
1767 hci_dev_unlock(hdev);
1768
1769 return 0;
1770 }
1771
1772 static int device_unpaired(struct hci_dev *hdev, bdaddr_t *bdaddr,
1773 u8 addr_type, struct sock *skip_sk)
1774 {
1775 struct mgmt_ev_device_unpaired ev;
1776
1777 bacpy(&ev.addr.bdaddr, bdaddr);
1778 ev.addr.type = addr_type;
1779
1780 return mgmt_event(MGMT_EV_DEVICE_UNPAIRED, hdev, &ev, sizeof(ev),
1781 skip_sk);
1782 }
1783
1784 static int unpair_device(struct sock *sk, struct hci_dev *hdev, void *data,
1785 u16 len)
1786 {
1787 struct mgmt_cp_unpair_device *cp = data;
1788 struct mgmt_rp_unpair_device rp;
1789 struct hci_cp_disconnect dc;
1790 struct pending_cmd *cmd;
1791 struct hci_conn *conn;
1792 int err;
1793
1794 memset(&rp, 0, sizeof(rp));
1795 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
1796 rp.addr.type = cp->addr.type;
1797
1798 if (!bdaddr_type_is_valid(cp->addr.type))
1799 return cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
1800 MGMT_STATUS_INVALID_PARAMS,
1801 &rp, sizeof(rp));
1802
1803 if (cp->disconnect != 0x00 && cp->disconnect != 0x01)
1804 return cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
1805 MGMT_STATUS_INVALID_PARAMS,
1806 &rp, sizeof(rp));
1807
1808 hci_dev_lock(hdev);
1809
1810 if (!hdev_is_powered(hdev)) {
1811 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
1812 MGMT_STATUS_NOT_POWERED, &rp, sizeof(rp));
1813 goto unlock;
1814 }
1815
1816 if (cp->addr.type == BDADDR_BREDR)
1817 err = hci_remove_link_key(hdev, &cp->addr.bdaddr);
1818 else
1819 err = hci_remove_ltk(hdev, &cp->addr.bdaddr);
1820
1821 if (err < 0) {
1822 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE,
1823 MGMT_STATUS_NOT_PAIRED, &rp, sizeof(rp));
1824 goto unlock;
1825 }
1826
1827 if (cp->disconnect) {
1828 if (cp->addr.type == BDADDR_BREDR)
1829 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
1830 &cp->addr.bdaddr);
1831 else
1832 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK,
1833 &cp->addr.bdaddr);
1834 } else {
1835 conn = NULL;
1836 }
1837
1838 if (!conn) {
1839 err = cmd_complete(sk, hdev->id, MGMT_OP_UNPAIR_DEVICE, 0,
1840 &rp, sizeof(rp));
1841 device_unpaired(hdev, &cp->addr.bdaddr, cp->addr.type, sk);
1842 goto unlock;
1843 }
1844
1845 cmd = mgmt_pending_add(sk, MGMT_OP_UNPAIR_DEVICE, hdev, cp,
1846 sizeof(*cp));
1847 if (!cmd) {
1848 err = -ENOMEM;
1849 goto unlock;
1850 }
1851
1852 dc.handle = cpu_to_le16(conn->handle);
1853 dc.reason = 0x13; /* Remote User Terminated Connection */
1854 err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
1855 if (err < 0)
1856 mgmt_pending_remove(cmd);
1857
1858 unlock:
1859 hci_dev_unlock(hdev);
1860 return err;
1861 }
1862
1863 static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data,
1864 u16 len)
1865 {
1866 struct mgmt_cp_disconnect *cp = data;
1867 struct mgmt_rp_disconnect rp;
1868 struct hci_cp_disconnect dc;
1869 struct pending_cmd *cmd;
1870 struct hci_conn *conn;
1871 int err;
1872
1873 BT_DBG("");
1874
1875 memset(&rp, 0, sizeof(rp));
1876 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
1877 rp.addr.type = cp->addr.type;
1878
1879 if (!bdaddr_type_is_valid(cp->addr.type))
1880 return cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
1881 MGMT_STATUS_INVALID_PARAMS,
1882 &rp, sizeof(rp));
1883
1884 hci_dev_lock(hdev);
1885
1886 if (!test_bit(HCI_UP, &hdev->flags)) {
1887 err = cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
1888 MGMT_STATUS_NOT_POWERED, &rp, sizeof(rp));
1889 goto failed;
1890 }
1891
1892 if (mgmt_pending_find(MGMT_OP_DISCONNECT, hdev)) {
1893 err = cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
1894 MGMT_STATUS_BUSY, &rp, sizeof(rp));
1895 goto failed;
1896 }
1897
1898 if (cp->addr.type == BDADDR_BREDR)
1899 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK,
1900 &cp->addr.bdaddr);
1901 else
1902 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr);
1903
1904 if (!conn || conn->state == BT_OPEN || conn->state == BT_CLOSED) {
1905 err = cmd_complete(sk, hdev->id, MGMT_OP_DISCONNECT,
1906 MGMT_STATUS_NOT_CONNECTED, &rp, sizeof(rp));
1907 goto failed;
1908 }
1909
1910 cmd = mgmt_pending_add(sk, MGMT_OP_DISCONNECT, hdev, data, len);
1911 if (!cmd) {
1912 err = -ENOMEM;
1913 goto failed;
1914 }
1915
1916 dc.handle = cpu_to_le16(conn->handle);
1917 dc.reason = HCI_ERROR_REMOTE_USER_TERM;
1918
1919 err = hci_send_cmd(hdev, HCI_OP_DISCONNECT, sizeof(dc), &dc);
1920 if (err < 0)
1921 mgmt_pending_remove(cmd);
1922
1923 failed:
1924 hci_dev_unlock(hdev);
1925 return err;
1926 }
1927
1928 static u8 link_to_bdaddr(u8 link_type, u8 addr_type)
1929 {
1930 switch (link_type) {
1931 case LE_LINK:
1932 switch (addr_type) {
1933 case ADDR_LE_DEV_PUBLIC:
1934 return BDADDR_LE_PUBLIC;
1935
1936 default:
1937 /* Fallback to LE Random address type */
1938 return BDADDR_LE_RANDOM;
1939 }
1940
1941 default:
1942 /* Fallback to BR/EDR type */
1943 return BDADDR_BREDR;
1944 }
1945 }
1946
1947 static int get_connections(struct sock *sk, struct hci_dev *hdev, void *data,
1948 u16 data_len)
1949 {
1950 struct mgmt_rp_get_connections *rp;
1951 struct hci_conn *c;
1952 size_t rp_len;
1953 int err;
1954 u16 i;
1955
1956 BT_DBG("");
1957
1958 hci_dev_lock(hdev);
1959
1960 if (!hdev_is_powered(hdev)) {
1961 err = cmd_status(sk, hdev->id, MGMT_OP_GET_CONNECTIONS,
1962 MGMT_STATUS_NOT_POWERED);
1963 goto unlock;
1964 }
1965
1966 i = 0;
1967 list_for_each_entry(c, &hdev->conn_hash.list, list) {
1968 if (test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
1969 i++;
1970 }
1971
1972 rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
1973 rp = kmalloc(rp_len, GFP_KERNEL);
1974 if (!rp) {
1975 err = -ENOMEM;
1976 goto unlock;
1977 }
1978
1979 i = 0;
1980 list_for_each_entry(c, &hdev->conn_hash.list, list) {
1981 if (!test_bit(HCI_CONN_MGMT_CONNECTED, &c->flags))
1982 continue;
1983 bacpy(&rp->addr[i].bdaddr, &c->dst);
1984 rp->addr[i].type = link_to_bdaddr(c->type, c->dst_type);
1985 if (c->type == SCO_LINK || c->type == ESCO_LINK)
1986 continue;
1987 i++;
1988 }
1989
1990 rp->conn_count = cpu_to_le16(i);
1991
1992 /* Recalculate length in case of filtered SCO connections, etc */
1993 rp_len = sizeof(*rp) + (i * sizeof(struct mgmt_addr_info));
1994
1995 err = cmd_complete(sk, hdev->id, MGMT_OP_GET_CONNECTIONS, 0, rp,
1996 rp_len);
1997
1998 kfree(rp);
1999
2000 unlock:
2001 hci_dev_unlock(hdev);
2002 return err;
2003 }
2004
2005 static int send_pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
2006 struct mgmt_cp_pin_code_neg_reply *cp)
2007 {
2008 struct pending_cmd *cmd;
2009 int err;
2010
2011 cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_NEG_REPLY, hdev, cp,
2012 sizeof(*cp));
2013 if (!cmd)
2014 return -ENOMEM;
2015
2016 err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_NEG_REPLY,
2017 sizeof(cp->addr.bdaddr), &cp->addr.bdaddr);
2018 if (err < 0)
2019 mgmt_pending_remove(cmd);
2020
2021 return err;
2022 }
2023
2024 static int pin_code_reply(struct sock *sk, struct hci_dev *hdev, void *data,
2025 u16 len)
2026 {
2027 struct hci_conn *conn;
2028 struct mgmt_cp_pin_code_reply *cp = data;
2029 struct hci_cp_pin_code_reply reply;
2030 struct pending_cmd *cmd;
2031 int err;
2032
2033 BT_DBG("");
2034
2035 hci_dev_lock(hdev);
2036
2037 if (!hdev_is_powered(hdev)) {
2038 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
2039 MGMT_STATUS_NOT_POWERED);
2040 goto failed;
2041 }
2042
2043 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->addr.bdaddr);
2044 if (!conn) {
2045 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
2046 MGMT_STATUS_NOT_CONNECTED);
2047 goto failed;
2048 }
2049
2050 if (conn->pending_sec_level == BT_SECURITY_HIGH && cp->pin_len != 16) {
2051 struct mgmt_cp_pin_code_neg_reply ncp;
2052
2053 memcpy(&ncp.addr, &cp->addr, sizeof(ncp.addr));
2054
2055 BT_ERR("PIN code is not 16 bytes long");
2056
2057 err = send_pin_code_neg_reply(sk, hdev, &ncp);
2058 if (err >= 0)
2059 err = cmd_status(sk, hdev->id, MGMT_OP_PIN_CODE_REPLY,
2060 MGMT_STATUS_INVALID_PARAMS);
2061
2062 goto failed;
2063 }
2064
2065 cmd = mgmt_pending_add(sk, MGMT_OP_PIN_CODE_REPLY, hdev, data, len);
2066 if (!cmd) {
2067 err = -ENOMEM;
2068 goto failed;
2069 }
2070
2071 bacpy(&reply.bdaddr, &cp->addr.bdaddr);
2072 reply.pin_len = cp->pin_len;
2073 memcpy(reply.pin_code, cp->pin_code, sizeof(reply.pin_code));
2074
2075 err = hci_send_cmd(hdev, HCI_OP_PIN_CODE_REPLY, sizeof(reply), &reply);
2076 if (err < 0)
2077 mgmt_pending_remove(cmd);
2078
2079 failed:
2080 hci_dev_unlock(hdev);
2081 return err;
2082 }
2083
2084 static int set_io_capability(struct sock *sk, struct hci_dev *hdev, void *data,
2085 u16 len)
2086 {
2087 struct mgmt_cp_set_io_capability *cp = data;
2088
2089 BT_DBG("");
2090
2091 hci_dev_lock(hdev);
2092
2093 hdev->io_capability = cp->io_capability;
2094
2095 BT_DBG("%s IO capability set to 0x%02x", hdev->name,
2096 hdev->io_capability);
2097
2098 hci_dev_unlock(hdev);
2099
2100 return cmd_complete(sk, hdev->id, MGMT_OP_SET_IO_CAPABILITY, 0, NULL,
2101 0);
2102 }
2103
2104 static struct pending_cmd *find_pairing(struct hci_conn *conn)
2105 {
2106 struct hci_dev *hdev = conn->hdev;
2107 struct pending_cmd *cmd;
2108
2109 list_for_each_entry(cmd, &hdev->mgmt_pending, list) {
2110 if (cmd->opcode != MGMT_OP_PAIR_DEVICE)
2111 continue;
2112
2113 if (cmd->user_data != conn)
2114 continue;
2115
2116 return cmd;
2117 }
2118
2119 return NULL;
2120 }
2121
2122 static void pairing_complete(struct pending_cmd *cmd, u8 status)
2123 {
2124 struct mgmt_rp_pair_device rp;
2125 struct hci_conn *conn = cmd->user_data;
2126
2127 bacpy(&rp.addr.bdaddr, &conn->dst);
2128 rp.addr.type = link_to_bdaddr(conn->type, conn->dst_type);
2129
2130 cmd_complete(cmd->sk, cmd->index, MGMT_OP_PAIR_DEVICE, status,
2131 &rp, sizeof(rp));
2132
2133 /* So we don't get further callbacks for this connection */
2134 conn->connect_cfm_cb = NULL;
2135 conn->security_cfm_cb = NULL;
2136 conn->disconn_cfm_cb = NULL;
2137
2138 hci_conn_drop(conn);
2139
2140 mgmt_pending_remove(cmd);
2141 }
2142
2143 static void pairing_complete_cb(struct hci_conn *conn, u8 status)
2144 {
2145 struct pending_cmd *cmd;
2146
2147 BT_DBG("status %u", status);
2148
2149 cmd = find_pairing(conn);
2150 if (!cmd)
2151 BT_DBG("Unable to find a pending command");
2152 else
2153 pairing_complete(cmd, mgmt_status(status));
2154 }
2155
2156 static void le_connect_complete_cb(struct hci_conn *conn, u8 status)
2157 {
2158 struct pending_cmd *cmd;
2159
2160 BT_DBG("status %u", status);
2161
2162 if (!status)
2163 return;
2164
2165 cmd = find_pairing(conn);
2166 if (!cmd)
2167 BT_DBG("Unable to find a pending command");
2168 else
2169 pairing_complete(cmd, mgmt_status(status));
2170 }
2171
2172 static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
2173 u16 len)
2174 {
2175 struct mgmt_cp_pair_device *cp = data;
2176 struct mgmt_rp_pair_device rp;
2177 struct pending_cmd *cmd;
2178 u8 sec_level, auth_type;
2179 struct hci_conn *conn;
2180 int err;
2181
2182 BT_DBG("");
2183
2184 memset(&rp, 0, sizeof(rp));
2185 bacpy(&rp.addr.bdaddr, &cp->addr.bdaddr);
2186 rp.addr.type = cp->addr.type;
2187
2188 if (!bdaddr_type_is_valid(cp->addr.type))
2189 return cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
2190 MGMT_STATUS_INVALID_PARAMS,
2191 &rp, sizeof(rp));
2192
2193 hci_dev_lock(hdev);
2194
2195 if (!hdev_is_powered(hdev)) {
2196 err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
2197 MGMT_STATUS_NOT_POWERED, &rp, sizeof(rp));
2198 goto unlock;
2199 }
2200
2201 sec_level = BT_SECURITY_MEDIUM;
2202 if (cp->io_cap == 0x03)
2203 auth_type = HCI_AT_DEDICATED_BONDING;
2204 else
2205 auth_type = HCI_AT_DEDICATED_BONDING_MITM;
2206
2207 if (cp->addr.type == BDADDR_BREDR)
2208 conn = hci_connect(hdev, ACL_LINK, 0, &cp->addr.bdaddr,
2209 cp->addr.type, sec_level, auth_type);
2210 else
2211 conn = hci_connect(hdev, LE_LINK, 0, &cp->addr.bdaddr,
2212 cp->addr.type, sec_level, auth_type);
2213
2214 if (IS_ERR(conn)) {
2215 int status;
2216
2217 if (PTR_ERR(conn) == -EBUSY)
2218 status = MGMT_STATUS_BUSY;
2219 else
2220 status = MGMT_STATUS_CONNECT_FAILED;
2221
2222 err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
2223 status, &rp,
2224 sizeof(rp));
2225 goto unlock;
2226 }
2227
2228 if (conn->connect_cfm_cb) {
2229 hci_conn_drop(conn);
2230 err = cmd_complete(sk, hdev->id, MGMT_OP_PAIR_DEVICE,
2231 MGMT_STATUS_BUSY, &rp, sizeof(rp));
2232 goto unlock;
2233 }
2234
2235 cmd = mgmt_pending_add(sk, MGMT_OP_PAIR_DEVICE, hdev, data, len);
2236 if (!cmd) {
2237 err = -ENOMEM;
2238 hci_conn_drop(conn);
2239 goto unlock;
2240 }
2241
2242 /* For LE, just connecting isn't a proof that the pairing finished */
2243 if (cp->addr.type == BDADDR_BREDR)
2244 conn->connect_cfm_cb = pairing_complete_cb;
2245 else
2246 conn->connect_cfm_cb = le_connect_complete_cb;
2247
2248 conn->security_cfm_cb = pairing_complete_cb;
2249 conn->disconn_cfm_cb = pairing_complete_cb;
2250 conn->io_capability = cp->io_cap;
2251 cmd->user_data = conn;
2252
2253 if (conn->state == BT_CONNECTED &&
2254 hci_conn_security(conn, sec_level, auth_type))
2255 pairing_complete(cmd, 0);
2256
2257 err = 0;
2258
2259 unlock:
2260 hci_dev_unlock(hdev);
2261 return err;
2262 }
2263
2264 static int cancel_pair_device(struct sock *sk, struct hci_dev *hdev, void *data,
2265 u16 len)
2266 {
2267 struct mgmt_addr_info *addr = data;
2268 struct pending_cmd *cmd;
2269 struct hci_conn *conn;
2270 int err;
2271
2272 BT_DBG("");
2273
2274 hci_dev_lock(hdev);
2275
2276 if (!hdev_is_powered(hdev)) {
2277 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
2278 MGMT_STATUS_NOT_POWERED);
2279 goto unlock;
2280 }
2281
2282 cmd = mgmt_pending_find(MGMT_OP_PAIR_DEVICE, hdev);
2283 if (!cmd) {
2284 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
2285 MGMT_STATUS_INVALID_PARAMS);
2286 goto unlock;
2287 }
2288
2289 conn = cmd->user_data;
2290
2291 if (bacmp(&addr->bdaddr, &conn->dst) != 0) {
2292 err = cmd_status(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE,
2293 MGMT_STATUS_INVALID_PARAMS);
2294 goto unlock;
2295 }
2296
2297 pairing_complete(cmd, MGMT_STATUS_CANCELLED);
2298
2299 err = cmd_complete(sk, hdev->id, MGMT_OP_CANCEL_PAIR_DEVICE, 0,
2300 addr, sizeof(*addr));
2301 unlock:
2302 hci_dev_unlock(hdev);
2303 return err;
2304 }
2305
2306 static int user_pairing_resp(struct sock *sk, struct hci_dev *hdev,
2307 struct mgmt_addr_info *addr, u16 mgmt_op,
2308 u16 hci_op, __le32 passkey)
2309 {
2310 struct pending_cmd *cmd;
2311 struct hci_conn *conn;
2312 int err;
2313
2314 hci_dev_lock(hdev);
2315
2316 if (!hdev_is_powered(hdev)) {
2317 err = cmd_complete(sk, hdev->id, mgmt_op,
2318 MGMT_STATUS_NOT_POWERED, addr,
2319 sizeof(*addr));
2320 goto done;
2321 }
2322
2323 if (addr->type == BDADDR_BREDR)
2324 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &addr->bdaddr);
2325 else
2326 conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &addr->bdaddr);
2327
2328 if (!conn) {
2329 err = cmd_complete(sk, hdev->id, mgmt_op,
2330 MGMT_STATUS_NOT_CONNECTED, addr,
2331 sizeof(*addr));
2332 goto done;
2333 }
2334
2335 if (addr->type == BDADDR_LE_PUBLIC || addr->type == BDADDR_LE_RANDOM) {
2336 /* Continue with pairing via SMP. The hdev lock must be
2337 * released as SMP may try to recquire it for crypto
2338 * purposes.
2339 */
2340 hci_dev_unlock(hdev);
2341 err = smp_user_confirm_reply(conn, mgmt_op, passkey);
2342 hci_dev_lock(hdev);
2343
2344 if (!err)
2345 err = cmd_complete(sk, hdev->id, mgmt_op,
2346 MGMT_STATUS_SUCCESS, addr,
2347 sizeof(*addr));
2348 else
2349 err = cmd_complete(sk, hdev->id, mgmt_op,
2350 MGMT_STATUS_FAILED, addr,
2351 sizeof(*addr));
2352
2353 goto done;
2354 }
2355
2356 cmd = mgmt_pending_add(sk, mgmt_op, hdev, addr, sizeof(*addr));
2357 if (!cmd) {
2358 err = -ENOMEM;
2359 goto done;
2360 }
2361
2362 /* Continue with pairing via HCI */
2363 if (hci_op == HCI_OP_USER_PASSKEY_REPLY) {
2364 struct hci_cp_user_passkey_reply cp;
2365
2366 bacpy(&cp.bdaddr, &addr->bdaddr);
2367 cp.passkey = passkey;
2368 err = hci_send_cmd(hdev, hci_op, sizeof(cp), &cp);
2369 } else
2370 err = hci_send_cmd(hdev, hci_op, sizeof(addr->bdaddr),
2371 &addr->bdaddr);
2372
2373 if (err < 0)
2374 mgmt_pending_remove(cmd);
2375
2376 done:
2377 hci_dev_unlock(hdev);
2378 return err;
2379 }
2380
2381 static int pin_code_neg_reply(struct sock *sk, struct hci_dev *hdev,
2382 void *data, u16 len)
2383 {
2384 struct mgmt_cp_pin_code_neg_reply *cp = data;
2385
2386 BT_DBG("");
2387
2388 return user_pairing_resp(sk, hdev, &cp->addr,
2389 MGMT_OP_PIN_CODE_NEG_REPLY,
2390 HCI_OP_PIN_CODE_NEG_REPLY, 0);
2391 }
2392
2393 static int user_confirm_reply(struct sock *sk, struct hci_dev *hdev, void *data,
2394 u16 len)
2395 {
2396 struct mgmt_cp_user_confirm_reply *cp = data;
2397
2398 BT_DBG("");
2399
2400 if (len != sizeof(*cp))
2401 return cmd_status(sk, hdev->id, MGMT_OP_USER_CONFIRM_REPLY,
2402 MGMT_STATUS_INVALID_PARAMS);
2403
2404 return user_pairing_resp(sk, hdev, &cp->addr,
2405 MGMT_OP_USER_CONFIRM_REPLY,
2406 HCI_OP_USER_CONFIRM_REPLY, 0);
2407 }
2408
2409 static int user_confirm_neg_reply(struct sock *sk, struct hci_dev *hdev,
2410 void *data, u16 len)
2411 {
2412 struct mgmt_cp_user_confirm_neg_reply *cp = data;
2413
2414 BT_DBG("");
2415
2416 return user_pairing_resp(sk, hdev, &cp->addr,
2417 MGMT_OP_USER_CONFIRM_NEG_REPLY,
2418 HCI_OP_USER_CONFIRM_NEG_REPLY, 0);
2419 }
2420
2421 static int user_passkey_reply(struct sock *sk, struct hci_dev *hdev, void *data,
2422 u16 len)
2423 {
2424 struct mgmt_cp_user_passkey_reply *cp = data;
2425
2426 BT_DBG("");
2427
2428 return user_pairing_resp(sk, hdev, &cp->addr,
2429 MGMT_OP_USER_PASSKEY_REPLY,
2430 HCI_OP_USER_PASSKEY_REPLY, cp->passkey);
2431 }
2432
2433 static int user_passkey_neg_reply(struct sock *sk, struct hci_dev *hdev,
2434 void *data, u16 len)
2435 {
2436 struct mgmt_cp_user_passkey_neg_reply *cp = data;
2437
2438 BT_DBG("");
2439
2440 return user_pairing_resp(sk, hdev, &cp->addr,
2441 MGMT_OP_USER_PASSKEY_NEG_REPLY,
2442 HCI_OP_USER_PASSKEY_NEG_REPLY, 0);
2443 }
2444
2445 static void update_name(struct hci_request *req)
2446 {
2447 struct hci_dev *hdev = req->hdev;
2448 struct hci_cp_write_local_name cp;
2449
2450 memcpy(cp.name, hdev->dev_name, sizeof(cp.name));
2451
2452 hci_req_add(req, HCI_OP_WRITE_LOCAL_NAME, sizeof(cp), &cp);
2453 }
2454
2455 static void set_name_complete(struct hci_dev *hdev, u8 status)
2456 {
2457 struct mgmt_cp_set_local_name *cp;
2458 struct pending_cmd *cmd;
2459
2460 BT_DBG("status 0x%02x", status);
2461
2462 hci_dev_lock(hdev);
2463
2464 cmd = mgmt_pending_find(MGMT_OP_SET_LOCAL_NAME, hdev);
2465 if (!cmd)
2466 goto unlock;
2467
2468 cp = cmd->param;
2469
2470 if (status)
2471 cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME,
2472 mgmt_status(status));
2473 else
2474 cmd_complete(cmd->sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
2475 cp, sizeof(*cp));
2476
2477 mgmt_pending_remove(cmd);
2478
2479 unlock:
2480 hci_dev_unlock(hdev);
2481 }
2482
2483 static int set_local_name(struct sock *sk, struct hci_dev *hdev, void *data,
2484 u16 len)
2485 {
2486 struct mgmt_cp_set_local_name *cp = data;
2487 struct pending_cmd *cmd;
2488 struct hci_request req;
2489 int err;
2490
2491 BT_DBG("");
2492
2493 hci_dev_lock(hdev);
2494
2495 /* If the old values are the same as the new ones just return a
2496 * direct command complete event.
2497 */
2498 if (!memcmp(hdev->dev_name, cp->name, sizeof(hdev->dev_name)) &&
2499 !memcmp(hdev->short_name, cp->short_name,
2500 sizeof(hdev->short_name))) {
2501 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
2502 data, len);
2503 goto failed;
2504 }
2505
2506 memcpy(hdev->short_name, cp->short_name, sizeof(hdev->short_name));
2507
2508 if (!hdev_is_powered(hdev)) {
2509 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
2510
2511 err = cmd_complete(sk, hdev->id, MGMT_OP_SET_LOCAL_NAME, 0,
2512 data, len);
2513 if (err < 0)
2514 goto failed;
2515
2516 err = mgmt_event(MGMT_EV_LOCAL_NAME_CHANGED, hdev, data, len,
2517 sk);
2518
2519 goto failed;
2520 }
2521
2522 cmd = mgmt_pending_add(sk, MGMT_OP_SET_LOCAL_NAME, hdev, data, len);
2523 if (!cmd) {
2524 err = -ENOMEM;
2525 goto failed;
2526 }
2527
2528 memcpy(hdev->dev_name, cp->name, sizeof(hdev->dev_name));
2529
2530 hci_req_init(&req, hdev);
2531
2532 if (lmp_bredr_capable(hdev)) {
2533 update_name(&req);
2534 update_eir(&req);
2535 }
2536
2537 if (lmp_le_capable(hdev))
2538 hci_update_ad(&req);
2539
2540 err = hci_req_run(&req, set_name_complete);
2541 if (err < 0)
2542 mgmt_pending_remove(cmd);
2543
2544 failed:
2545 hci_dev_unlock(hdev);
2546 return err;
2547 }
2548
2549 static int read_local_oob_data(struct sock *sk, struct hci_dev *hdev,
2550 void *data, u16 data_len)
2551 {
2552 struct pending_cmd *cmd;
2553 int err;
2554
2555 BT_DBG("%s", hdev->name);
2556
2557 hci_dev_lock(hdev);
2558
2559 if (!hdev_is_powered(hdev)) {
2560 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
2561 MGMT_STATUS_NOT_POWERED);
2562 goto unlock;
2563 }
2564
2565 if (!lmp_ssp_capable(hdev)) {
2566 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
2567 MGMT_STATUS_NOT_SUPPORTED);
2568 goto unlock;
2569 }
2570
2571 if (mgmt_pending_find(MGMT_OP_READ_LOCAL_OOB_DATA, hdev)) {
2572 err = cmd_status(sk, hdev->id, MGMT_OP_READ_LOCAL_OOB_DATA,
2573 MGMT_STATUS_BUSY);
2574 goto unlock;
2575 }
2576
2577 cmd = mgmt_pending_add(sk, MGMT_OP_READ_LOCAL_OOB_DATA, hdev, NULL, 0);
2578 if (!cmd) {
2579 err = -ENOMEM;
2580 goto unlock;
2581 }
2582
2583 err = hci_send_cmd(hdev, HCI_OP_READ_LOCAL_OOB_DATA, 0, NULL);
2584 if (err < 0)
2585 mgmt_pending_remove(cmd);
2586
2587 unlock:
2588 hci_dev_unlock(hdev);
2589 return err;
2590 }
2591
2592 static int add_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
2593 void *data, u16 len)
2594 {
2595 struct mgmt_cp_add_remote_oob_data *cp = data;
2596 u8 status;
2597 int err;
2598
2599 BT_DBG("%s ", hdev->name);
2600
2601 hci_dev_lock(hdev);
2602
2603 err = hci_add_remote_oob_data(hdev, &cp->addr.bdaddr, cp->hash,
2604 cp->randomizer);
2605 if (err < 0)
2606 status = MGMT_STATUS_FAILED;
2607 else
2608 status = MGMT_STATUS_SUCCESS;
2609
2610 err = cmd_complete(sk, hdev->id, MGMT_OP_ADD_REMOTE_OOB_DATA, status,
2611 &cp->addr, sizeof(cp->addr));
2612
2613 hci_dev_unlock(hdev);
2614 return err;
2615 }
2616
2617 static int remove_remote_oob_data(struct sock *sk, struct hci_dev *hdev,
2618 void *data, u16 len)
2619 {
2620 struct mgmt_cp_remove_remote_oob_data *cp = data;
2621 u8 status;
2622 int err;
2623
2624 BT_DBG("%s", hdev->name);
2625
2626 hci_dev_lock(hdev);
2627
2628 err = hci_remove_remote_oob_data(hdev, &cp->addr.bdaddr);
2629 if (err < 0)
2630 status = MGMT_STATUS_INVALID_PARAMS;
2631 else
2632 status = MGMT_STATUS_SUCCESS;
2633
2634 err = cmd_complete(sk, hdev->id, MGMT_OP_REMOVE_REMOTE_OOB_DATA,
2635 status, &cp->addr, sizeof(cp->addr));
2636
2637 hci_dev_unlock(hdev);
2638 return err;
2639 }
2640
2641 int mgmt_interleaved_discovery(struct hci_dev *hdev)
2642 {
2643 int err;
2644
2645 BT_DBG("%s", hdev->name);
2646
2647 hci_dev_lock(hdev);
2648
2649 err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR_LE);
2650 if (err < 0)
2651 hci_discovery_set_state(hdev, DISCOVERY_STOPPED);
2652
2653 hci_dev_unlock(hdev);
2654
2655 return err;
2656 }
2657
2658 static int start_discovery(struct sock *sk, struct hci_dev *hdev,
2659 void *data, u16 len)
2660 {
2661 struct mgmt_cp_start_discovery *cp = data;
2662 struct pending_cmd *cmd;
2663 int err;
2664
2665 BT_DBG("%s", hdev->name);
2666
2667 hci_dev_lock(hdev);
2668
2669 if (!hdev_is_powered(hdev)) {
2670 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2671 MGMT_STATUS_NOT_POWERED);
2672 goto failed;
2673 }
2674
2675 if (test_bit(HCI_PERIODIC_INQ, &hdev->dev_flags)) {
2676 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2677 MGMT_STATUS_BUSY);
2678 goto failed;
2679 }
2680
2681 if (hdev->discovery.state != DISCOVERY_STOPPED) {
2682 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2683 MGMT_STATUS_BUSY);
2684 goto failed;
2685 }
2686
2687 cmd = mgmt_pending_add(sk, MGMT_OP_START_DISCOVERY, hdev, NULL, 0);
2688 if (!cmd) {
2689 err = -ENOMEM;
2690 goto failed;
2691 }
2692
2693 hdev->discovery.type = cp->type;
2694
2695 switch (hdev->discovery.type) {
2696 case DISCOV_TYPE_BREDR:
2697 if (!lmp_bredr_capable(hdev)) {
2698 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2699 MGMT_STATUS_NOT_SUPPORTED);
2700 mgmt_pending_remove(cmd);
2701 goto failed;
2702 }
2703
2704 err = hci_do_inquiry(hdev, INQUIRY_LEN_BREDR);
2705 break;
2706
2707 case DISCOV_TYPE_LE:
2708 if (!test_bit(HCI_LE_ENABLED, &hdev->dev_flags)) {
2709 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2710 MGMT_STATUS_NOT_SUPPORTED);
2711 mgmt_pending_remove(cmd);
2712 goto failed;
2713 }
2714
2715 err = hci_le_scan(hdev, LE_SCAN_ACTIVE, LE_SCAN_INT,
2716 LE_SCAN_WIN, LE_SCAN_TIMEOUT_LE_ONLY);
2717 break;
2718
2719 case DISCOV_TYPE_INTERLEAVED:
2720 if (!lmp_host_le_capable(hdev) || !lmp_bredr_capable(hdev)) {
2721 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2722 MGMT_STATUS_NOT_SUPPORTED);
2723 mgmt_pending_remove(cmd);
2724 goto failed;
2725 }
2726
2727 err = hci_le_scan(hdev, LE_SCAN_ACTIVE, LE_SCAN_INT,
2728 LE_SCAN_WIN, LE_SCAN_TIMEOUT_BREDR_LE);
2729 break;
2730
2731 default:
2732 err = cmd_status(sk, hdev->id, MGMT_OP_START_DISCOVERY,
2733 MGMT_STATUS_INVALID_PARAMS);
2734 mgmt_pending_remove(cmd);
2735 goto failed;
2736 }
2737
2738 if (err < 0)
2739 mgmt_pending_remove(cmd);
2740 else
2741 hci_discovery_set_state(hdev, DISCOVERY_STARTING);
2742
2743 failed:
2744 hci_dev_unlock(hdev);
2745 return err;
2746 }
2747
2748 static int stop_discovery(struct sock *sk, struct hci_dev *hdev, void *data,
2749 u16 len)
2750 {
2751 struct mgmt_cp_stop_discovery *mgmt_cp = data;
2752 struct pending_cmd *cmd;
2753 struct hci_cp_remote_name_req_cancel cp;
2754 struct inquiry_entry *e;
2755 int err;
2756
2757 BT_DBG("%s", hdev->name);
2758
2759 hci_dev_lock(hdev);
2760
2761 if (!hci_discovery_active(hdev)) {
2762 err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
2763 MGMT_STATUS_REJECTED, &mgmt_cp->type,
2764 sizeof(mgmt_cp->type));
2765 goto unlock;
2766 }
2767
2768 if (hdev->discovery.type != mgmt_cp->type) {
2769 err = cmd_complete(sk, hdev->id, MGMT_OP_STOP_DISCOVERY,
2770 MGMT_STATUS_INVALID_PARAMS, &mgmt_cp->type,
2771 sizeof(mgmt_cp->type));
2772 goto unlock;
2773 }
2774
2775 cmd = mgmt_pending_add(sk, MGMT_OP_STOP_DISCOVERY, hdev, NULL, 0);
2776 if (!cmd) {
2777 err = -ENOMEM;
2778 goto unlock;
2779 }
2780
2781 switch (hdev->discovery.state) {
2782 case DISCOVERY_FINDING:
2783 if (test_bit(HCI_INQUIRY, &hdev->flags))
2784 err = hci_cancel_inquiry(hdev);
2785 else
2786 err = hci_cancel_le_scan(hdev);
2787
2788 break;
2789
2790 case DISCOVERY_RESOLVING:
2791 e = hci_inquiry_cache_lookup_resolve(hdev, BDADDR_ANY,
2792 NAME_PENDING);
2793 if (!e) {
2794 mgmt_pending_remove(cmd);
2795 err = cmd_complete(sk, hdev->id,
2796 MGMT_OP_STOP_DISCOVERY, 0,
2797 &mgmt_cp->type,
2798 sizeof(mgmt_cp->type));