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[PATCH] hfs: don't dirty unchanged inode
[linux-2.6/openmoko-kernel/knife-kernel.git] / net / bluetooth / hci_event.c
blobc4b592b4ef10083fc5a270fb75ca419faf939e70
1 /*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2000-2001 Qualcomm Incorporated
4
5 Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
6
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License version 2 as
9 published by the Free Software Foundation;
10
11 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
12 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
13 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
14 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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 event handling. */
26
27 #include <linux/config.h>
28 #include <linux/module.h>
29
30 #include <linux/types.h>
31 #include <linux/errno.h>
32 #include <linux/kernel.h>
33 #include <linux/sched.h>
34 #include <linux/slab.h>
35 #include <linux/poll.h>
36 #include <linux/fcntl.h>
37 #include <linux/init.h>
38 #include <linux/skbuff.h>
39 #include <linux/interrupt.h>
40 #include <linux/notifier.h>
41 #include <net/sock.h>
42
43 #include <asm/system.h>
44 #include <asm/uaccess.h>
45 #include <asm/unaligned.h>
46
47 #include <net/bluetooth/bluetooth.h>
48 #include <net/bluetooth/hci_core.h>
49
50 #ifndef CONFIG_BT_HCI_CORE_DEBUG
51 #undef BT_DBG
52 #define BT_DBG(D...)
53 #endif
54
55 /* Handle HCI Event packets */
56
57 /* Command Complete OGF LINK_CTL */
58 static void hci_cc_link_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
59 {
60 __u8 status;
61
62 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
63
64 switch (ocf) {
65 case OCF_INQUIRY_CANCEL:
66 status = *((__u8 *) skb->data);
67
68 if (status) {
69 BT_DBG("%s Inquiry cancel error: status 0x%x", hdev->name, status);
70 } else {
71 clear_bit(HCI_INQUIRY, &hdev->flags);
72 hci_req_complete(hdev, status);
73 }
74 break;
75
76 default:
77 BT_DBG("%s Command complete: ogf LINK_CTL ocf %x", hdev->name, ocf);
78 break;
79 }
80 }
81
82 /* Command Complete OGF LINK_POLICY */
83 static void hci_cc_link_policy(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
84 {
85 struct hci_conn *conn;
86 struct hci_rp_role_discovery *rd;
87
88 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
89
90 switch (ocf) {
91 case OCF_ROLE_DISCOVERY:
92 rd = (void *) skb->data;
93
94 if (rd->status)
95 break;
96
97 hci_dev_lock(hdev);
98
99 conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rd->handle));
100 if (conn) {
101 if (rd->role)
102 conn->link_mode &= ~HCI_LM_MASTER;
103 else
104 conn->link_mode |= HCI_LM_MASTER;
105 }
106
107 hci_dev_unlock(hdev);
108 break;
109
110 default:
111 BT_DBG("%s: Command complete: ogf LINK_POLICY ocf %x",
112 hdev->name, ocf);
113 break;
114 }
115 }
116
117 /* Command Complete OGF HOST_CTL */
118 static void hci_cc_host_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
119 {
120 __u8 status, param;
121 __u16 setting;
122 struct hci_rp_read_voice_setting *vs;
123 void *sent;
124
125 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
126
127 switch (ocf) {
128 case OCF_RESET:
129 status = *((__u8 *) skb->data);
130 hci_req_complete(hdev, status);
131 break;
132
133 case OCF_SET_EVENT_FLT:
134 status = *((__u8 *) skb->data);
135 if (status) {
136 BT_DBG("%s SET_EVENT_FLT failed %d", hdev->name, status);
137 } else {
138 BT_DBG("%s SET_EVENT_FLT succeseful", hdev->name);
139 }
140 break;
141
142 case OCF_WRITE_AUTH_ENABLE:
143 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_AUTH_ENABLE);
144 if (!sent)
145 break;
146
147 status = *((__u8 *) skb->data);
148 param = *((__u8 *) sent);
149
150 if (!status) {
151 if (param == AUTH_ENABLED)
152 set_bit(HCI_AUTH, &hdev->flags);
153 else
154 clear_bit(HCI_AUTH, &hdev->flags);
155 }
156 hci_req_complete(hdev, status);
157 break;
158
159 case OCF_WRITE_ENCRYPT_MODE:
160 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_ENCRYPT_MODE);
161 if (!sent)
162 break;
163
164 status = *((__u8 *) skb->data);
165 param = *((__u8 *) sent);
166
167 if (!status) {
168 if (param)
169 set_bit(HCI_ENCRYPT, &hdev->flags);
170 else
171 clear_bit(HCI_ENCRYPT, &hdev->flags);
172 }
173 hci_req_complete(hdev, status);
174 break;
175
176 case OCF_WRITE_CA_TIMEOUT:
177 status = *((__u8 *) skb->data);
178 if (status) {
179 BT_DBG("%s OCF_WRITE_CA_TIMEOUT failed %d", hdev->name, status);
180 } else {
181 BT_DBG("%s OCF_WRITE_CA_TIMEOUT succeseful", hdev->name);
182 }
183 break;
184
185 case OCF_WRITE_PG_TIMEOUT:
186 status = *((__u8 *) skb->data);
187 if (status) {
188 BT_DBG("%s OCF_WRITE_PG_TIMEOUT failed %d", hdev->name, status);
189 } else {
190 BT_DBG("%s: OCF_WRITE_PG_TIMEOUT succeseful", hdev->name);
191 }
192 break;
193
194 case OCF_WRITE_SCAN_ENABLE:
195 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE);
196 if (!sent)
197 break;
198
199 status = *((__u8 *) skb->data);
200 param = *((__u8 *) sent);
201
202 BT_DBG("param 0x%x", param);
203
204 if (!status) {
205 clear_bit(HCI_PSCAN, &hdev->flags);
206 clear_bit(HCI_ISCAN, &hdev->flags);
207 if (param & SCAN_INQUIRY)
208 set_bit(HCI_ISCAN, &hdev->flags);
209
210 if (param & SCAN_PAGE)
211 set_bit(HCI_PSCAN, &hdev->flags);
212 }
213 hci_req_complete(hdev, status);
214 break;
215
216 case OCF_READ_VOICE_SETTING:
217 vs = (struct hci_rp_read_voice_setting *) skb->data;
218
219 if (vs->status) {
220 BT_DBG("%s READ_VOICE_SETTING failed %d", hdev->name, vs->status);
221 break;
222 }
223
224 setting = __le16_to_cpu(vs->voice_setting);
225
226 if (hdev->voice_setting != setting ) {
227 hdev->voice_setting = setting;
228
229 BT_DBG("%s: voice setting 0x%04x", hdev->name, setting);
230
231 if (hdev->notify) {
232 tasklet_disable(&hdev->tx_task);
233 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
234 tasklet_enable(&hdev->tx_task);
235 }
236 }
237 break;
238
239 case OCF_WRITE_VOICE_SETTING:
240 sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_VOICE_SETTING);
241 if (!sent)
242 break;
243
244 status = *((__u8 *) skb->data);
245 setting = __le16_to_cpu(get_unaligned((__u16 *) sent));
246
247 if (!status && hdev->voice_setting != setting) {
248 hdev->voice_setting = setting;
249
250 BT_DBG("%s: voice setting 0x%04x", hdev->name, setting);
251
252 if (hdev->notify) {
253 tasklet_disable(&hdev->tx_task);
254 hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
255 tasklet_enable(&hdev->tx_task);
256 }
257 }
258 hci_req_complete(hdev, status);
259 break;
260
261 case OCF_HOST_BUFFER_SIZE:
262 status = *((__u8 *) skb->data);
263 if (status) {
264 BT_DBG("%s OCF_BUFFER_SIZE failed %d", hdev->name, status);
265 hci_req_complete(hdev, status);
266 }
267 break;
268
269 default:
270 BT_DBG("%s Command complete: ogf HOST_CTL ocf %x", hdev->name, ocf);
271 break;
272 }
273 }
274
275 /* Command Complete OGF INFO_PARAM */
276 static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
277 {
278 struct hci_rp_read_loc_features *lf;
279 struct hci_rp_read_buffer_size *bs;
280 struct hci_rp_read_bd_addr *ba;
281
282 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
283
284 switch (ocf) {
285 case OCF_READ_LOCAL_FEATURES:
286 lf = (struct hci_rp_read_loc_features *) skb->data;
287
288 if (lf->status) {
289 BT_DBG("%s READ_LOCAL_FEATURES failed %d", hdev->name, lf->status);
290 break;
291 }
292
293 memcpy(hdev->features, lf->features, sizeof(hdev->features));
294
295 /* Adjust default settings according to features
296 * supported by device. */
297 if (hdev->features[0] & LMP_3SLOT)
298 hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
299
300 if (hdev->features[0] & LMP_5SLOT)
301 hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
302
303 if (hdev->features[1] & LMP_HV2)
304 hdev->pkt_type |= (HCI_HV2);
305
306 if (hdev->features[1] & LMP_HV3)
307 hdev->pkt_type |= (HCI_HV3);
308
309 BT_DBG("%s: features 0x%x 0x%x 0x%x", hdev->name, lf->features[0], lf->features[1], lf->features[2]);
310
311 break;
312
313 case OCF_READ_BUFFER_SIZE:
314 bs = (struct hci_rp_read_buffer_size *) skb->data;
315
316 if (bs->status) {
317 BT_DBG("%s READ_BUFFER_SIZE failed %d", hdev->name, bs->status);
318 hci_req_complete(hdev, bs->status);
319 break;
320 }
321
322 hdev->acl_mtu = __le16_to_cpu(bs->acl_mtu);
323 hdev->sco_mtu = bs->sco_mtu ? bs->sco_mtu : 64;
324 hdev->acl_pkts = hdev->acl_cnt = __le16_to_cpu(bs->acl_max_pkt);
325 hdev->sco_pkts = hdev->sco_cnt = __le16_to_cpu(bs->sco_max_pkt);
326
327 BT_DBG("%s mtu: acl %d, sco %d max_pkt: acl %d, sco %d", hdev->name,
328 hdev->acl_mtu, hdev->sco_mtu, hdev->acl_pkts, hdev->sco_pkts);
329 break;
330
331 case OCF_READ_BD_ADDR:
332 ba = (struct hci_rp_read_bd_addr *) skb->data;
333
334 if (!ba->status) {
335 bacpy(&hdev->bdaddr, &ba->bdaddr);
336 } else {
337 BT_DBG("%s: READ_BD_ADDR failed %d", hdev->name, ba->status);
338 }
339
340 hci_req_complete(hdev, ba->status);
341 break;
342
343 default:
344 BT_DBG("%s Command complete: ogf INFO_PARAM ocf %x", hdev->name, ocf);
345 break;
346 }
347 }
348
349 /* Command Status OGF LINK_CTL */
350 static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
351 {
352 struct hci_conn *conn;
353 struct hci_cp_create_conn *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_CREATE_CONN);
354
355 if (!cp)
356 return;
357
358 hci_dev_lock(hdev);
359
360 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
361
362 BT_DBG("%s status 0x%x bdaddr %s conn %p", hdev->name,
363 status, batostr(&cp->bdaddr), conn);
364
365 if (status) {
366 if (conn && conn->state == BT_CONNECT) {
367 conn->state = BT_CLOSED;
368 hci_proto_connect_cfm(conn, status);
369 hci_conn_del(conn);
370 }
371 } else {
372 if (!conn) {
373 conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
374 if (conn) {
375 conn->out = 1;
376 conn->link_mode |= HCI_LM_MASTER;
377 } else
378 BT_ERR("No memmory for new connection");
379 }
380 }
381
382 hci_dev_unlock(hdev);
383 }
384
385 static void hci_cs_link_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
386 {
387 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
388
389 switch (ocf) {
390 case OCF_CREATE_CONN:
391 hci_cs_create_conn(hdev, status);
392 break;
393
394 case OCF_ADD_SCO:
395 if (status) {
396 struct hci_conn *acl, *sco;
397 struct hci_cp_add_sco *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_ADD_SCO);
398 __u16 handle;
399
400 if (!cp)
401 break;
402
403 handle = __le16_to_cpu(cp->handle);
404
405 BT_DBG("%s Add SCO error: handle %d status 0x%x", hdev->name, handle, status);
406
407 hci_dev_lock(hdev);
408
409 acl = hci_conn_hash_lookup_handle(hdev, handle);
410 if (acl && (sco = acl->link)) {
411 sco->state = BT_CLOSED;
412
413 hci_proto_connect_cfm(sco, status);
414 hci_conn_del(sco);
415 }
416
417 hci_dev_unlock(hdev);
418 }
419 break;
420
421 case OCF_INQUIRY:
422 if (status) {
423 BT_DBG("%s Inquiry error: status 0x%x", hdev->name, status);
424 hci_req_complete(hdev, status);
425 } else {
426 set_bit(HCI_INQUIRY, &hdev->flags);
427 }
428 break;
429
430 default:
431 BT_DBG("%s Command status: ogf LINK_CTL ocf %x status %d",
432 hdev->name, ocf, status);
433 break;
434 }
435 }
436
437 /* Command Status OGF LINK_POLICY */
438 static void hci_cs_link_policy(struct hci_dev *hdev, __u16 ocf, __u8 status)
439 {
440 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
441
442 switch (ocf) {
443 default:
444 BT_DBG("%s Command status: ogf HOST_POLICY ocf %x", hdev->name, ocf);
445 break;
446 }
447 }
448
449 /* Command Status OGF HOST_CTL */
450 static void hci_cs_host_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
451 {
452 BT_DBG("%s ocf 0x%x", hdev->name, ocf);
453
454 switch (ocf) {
455 default:
456 BT_DBG("%s Command status: ogf HOST_CTL ocf %x", hdev->name, ocf);
457 break;
458 }
459 }
460
461 /* Command Status OGF INFO_PARAM */
462 static void hci_cs_info_param(struct hci_dev *hdev, __u16 ocf, __u8 status)
463 {
464 BT_DBG("%s: hci_cs_info_param: ocf 0x%x", hdev->name, ocf);
465
466 switch (ocf) {
467 default:
468 BT_DBG("%s Command status: ogf INFO_PARAM ocf %x", hdev->name, ocf);
469 break;
470 }
471 }
472
473 /* Inquiry Complete */
474 static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
475 {
476 __u8 status = *((__u8 *) skb->data);
477
478 BT_DBG("%s status %d", hdev->name, status);
479
480 clear_bit(HCI_INQUIRY, &hdev->flags);
481 hci_req_complete(hdev, status);
482 }
483
484 /* Inquiry Result */
485 static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
486 {
487 struct inquiry_info *info = (struct inquiry_info *) (skb->data + 1);
488 int num_rsp = *((__u8 *) skb->data);
489
490 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
491
492 hci_dev_lock(hdev);
493 for (; num_rsp; num_rsp--) {
494 struct inquiry_data data;
495 bacpy(&data.bdaddr, &info->bdaddr);
496 data.pscan_rep_mode = info->pscan_rep_mode;
497 data.pscan_period_mode = info->pscan_period_mode;
498 data.pscan_mode = info->pscan_mode;
499 memcpy(data.dev_class, info->dev_class, 3);
500 data.clock_offset = info->clock_offset;
501 data.rssi = 0x00;
502 info++;
503 hci_inquiry_cache_update(hdev, &data);
504 }
505 hci_dev_unlock(hdev);
506 }
507
508 /* Inquiry Result With RSSI */
509 static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
510 {
511 struct inquiry_info_with_rssi *info = (struct inquiry_info_with_rssi *) (skb->data + 1);
512 int num_rsp = *((__u8 *) skb->data);
513
514 BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
515
516 hci_dev_lock(hdev);
517 for (; num_rsp; num_rsp--) {
518 struct inquiry_data data;
519 bacpy(&data.bdaddr, &info->bdaddr);
520 data.pscan_rep_mode = info->pscan_rep_mode;
521 data.pscan_period_mode = info->pscan_period_mode;
522 data.pscan_mode = 0x00;
523 memcpy(data.dev_class, info->dev_class, 3);
524 data.clock_offset = info->clock_offset;
525 data.rssi = info->rssi;
526 info++;
527 hci_inquiry_cache_update(hdev, &data);
528 }
529 hci_dev_unlock(hdev);
530 }
531
532 /* Connect Request */
533 static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
534 {
535 struct hci_ev_conn_request *ev = (struct hci_ev_conn_request *) skb->data;
536 int mask = hdev->link_mode;
537
538 BT_DBG("%s Connection request: %s type 0x%x", hdev->name,
539 batostr(&ev->bdaddr), ev->link_type);
540
541 mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
542
543 if (mask & HCI_LM_ACCEPT) {
544 /* Connection accepted */
545 struct hci_conn *conn;
546 struct hci_cp_accept_conn_req cp;
547
548 hci_dev_lock(hdev);
549 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
550 if (!conn) {
551 if (!(conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr))) {
552 BT_ERR("No memmory for new connection");
553 hci_dev_unlock(hdev);
554 return;
555 }
556 }
557 memcpy(conn->dev_class, ev->dev_class, 3);
558 conn->state = BT_CONNECT;
559 hci_dev_unlock(hdev);
560
561 bacpy(&cp.bdaddr, &ev->bdaddr);
562
563 if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
564 cp.role = 0x00; /* Become master */
565 else
566 cp.role = 0x01; /* Remain slave */
567
568 hci_send_cmd(hdev, OGF_LINK_CTL, OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
569 } else {
570 /* Connection rejected */
571 struct hci_cp_reject_conn_req cp;
572
573 bacpy(&cp.bdaddr, &ev->bdaddr);
574 cp.reason = 0x0f;
575 hci_send_cmd(hdev, OGF_LINK_CTL, OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
576 }
577 }
578
579 /* Connect Complete */
580 static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
581 {
582 struct hci_ev_conn_complete *ev = (struct hci_ev_conn_complete *) skb->data;
583 struct hci_conn *conn = NULL;
584
585 BT_DBG("%s", hdev->name);
586
587 hci_dev_lock(hdev);
588
589 conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
590 if (!conn) {
591 hci_dev_unlock(hdev);
592 return;
593 }
594
595 if (!ev->status) {
596 conn->handle = __le16_to_cpu(ev->handle);
597 conn->state = BT_CONNECTED;
598
599 if (test_bit(HCI_AUTH, &hdev->flags))
600 conn->link_mode |= HCI_LM_AUTH;
601
602 if (test_bit(HCI_ENCRYPT, &hdev->flags))
603 conn->link_mode |= HCI_LM_ENCRYPT;
604
605 /* Set link policy */
606 if (conn->type == ACL_LINK && hdev->link_policy) {
607 struct hci_cp_write_link_policy cp;
608 cp.handle = ev->handle;
609 cp.policy = __cpu_to_le16(hdev->link_policy);
610 hci_send_cmd(hdev, OGF_LINK_POLICY, OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
611 }
612
613 /* Set packet type for incoming connection */
614 if (!conn->out) {
615 struct hci_cp_change_conn_ptype cp;
616 cp.handle = ev->handle;
617 cp.pkt_type = (conn->type == ACL_LINK) ?
618 __cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK):
619 __cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
620
621 hci_send_cmd(hdev, OGF_LINK_CTL, OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
622 }
623 } else
624 conn->state = BT_CLOSED;
625
626 if (conn->type == ACL_LINK) {
627 struct hci_conn *sco = conn->link;
628 if (sco) {
629 if (!ev->status)
630 hci_add_sco(sco, conn->handle);
631 else {
632 hci_proto_connect_cfm(sco, ev->status);
633 hci_conn_del(sco);
634 }
635 }
636 }
637
638 hci_proto_connect_cfm(conn, ev->status);
639 if (ev->status)
640 hci_conn_del(conn);
641
642 hci_dev_unlock(hdev);
643 }
644
645 /* Disconnect Complete */
646 static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
647 {
648 struct hci_ev_disconn_complete *ev = (struct hci_ev_disconn_complete *) skb->data;
649 struct hci_conn *conn = NULL;
650 __u16 handle = __le16_to_cpu(ev->handle);
651
652 BT_DBG("%s status %d", hdev->name, ev->status);
653
654 if (ev->status)
655 return;
656
657 hci_dev_lock(hdev);
658
659 conn = hci_conn_hash_lookup_handle(hdev, handle);
660 if (conn) {
661 conn->state = BT_CLOSED;
662 hci_proto_disconn_ind(conn, ev->reason);
663 hci_conn_del(conn);
664 }
665
666 hci_dev_unlock(hdev);
667 }
668
669 /* Number of completed packets */
670 static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
671 {
672 struct hci_ev_num_comp_pkts *ev = (struct hci_ev_num_comp_pkts *) skb->data;
673 __u16 *ptr;
674 int i;
675
676 skb_pull(skb, sizeof(*ev));
677
678 BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
679
680 if (skb->len < ev->num_hndl * 4) {
681 BT_DBG("%s bad parameters", hdev->name);
682 return;
683 }
684
685 tasklet_disable(&hdev->tx_task);
686
687 for (i = 0, ptr = (__u16 *) skb->data; i < ev->num_hndl; i++) {
688 struct hci_conn *conn;
689 __u16 handle, count;
690
691 handle = __le16_to_cpu(get_unaligned(ptr++));
692 count = __le16_to_cpu(get_unaligned(ptr++));
693
694 conn = hci_conn_hash_lookup_handle(hdev, handle);
695 if (conn) {
696 conn->sent -= count;
697
698 if (conn->type == SCO_LINK) {
699 if ((hdev->sco_cnt += count) > hdev->sco_pkts)
700 hdev->sco_cnt = hdev->sco_pkts;
701 } else {
702 if ((hdev->acl_cnt += count) > hdev->acl_pkts)
703 hdev->acl_cnt = hdev->acl_pkts;
704 }
705 }
706 }
707 hci_sched_tx(hdev);
708
709 tasklet_enable(&hdev->tx_task);
710 }
711
712 /* Role Change */
713 static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
714 {
715 struct hci_ev_role_change *ev = (struct hci_ev_role_change *) skb->data;
716 struct hci_conn *conn = NULL;
717
718 BT_DBG("%s status %d", hdev->name, ev->status);
719
720 hci_dev_lock(hdev);
721
722 conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
723 if (conn) {
724 if (!ev->status) {
725 if (ev->role)
726 conn->link_mode &= ~HCI_LM_MASTER;
727 else
728 conn->link_mode |= HCI_LM_MASTER;
729 }
730
731 clear_bit(HCI_CONN_RSWITCH_PEND, &conn->pend);
732
733 hci_role_switch_cfm(conn, ev->status, ev->role);
734 }
735
736 hci_dev_unlock(hdev);
737 }
738
739 /* Authentication Complete */
740 static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
741 {
742 struct hci_ev_auth_complete *ev = (struct hci_ev_auth_complete *) skb->data;
743 struct hci_conn *conn = NULL;
744 __u16 handle = __le16_to_cpu(ev->handle);
745
746 BT_DBG("%s status %d", hdev->name, ev->status);
747
748 hci_dev_lock(hdev);
749
750 conn = hci_conn_hash_lookup_handle(hdev, handle);
751 if (conn) {
752 if (!ev->status)
753 conn->link_mode |= HCI_LM_AUTH;
754
755 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
756
757 hci_auth_cfm(conn, ev->status);
758
759 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
760 if (!ev->status) {
761 struct hci_cp_set_conn_encrypt cp;
762 cp.handle = __cpu_to_le16(conn->handle);
763 cp.encrypt = 1;
764 hci_send_cmd(conn->hdev, OGF_LINK_CTL,
765 OCF_SET_CONN_ENCRYPT,
766 sizeof(cp), &cp);
767 } else {
768 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
769 hci_encrypt_cfm(conn, ev->status, 0x00);
770 }
771 }
772 }
773
774 hci_dev_unlock(hdev);
775 }
776
777 /* Encryption Change */
778 static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
779 {
780 struct hci_ev_encrypt_change *ev = (struct hci_ev_encrypt_change *) skb->data;
781 struct hci_conn *conn = NULL;
782 __u16 handle = __le16_to_cpu(ev->handle);
783
784 BT_DBG("%s status %d", hdev->name, ev->status);
785
786 hci_dev_lock(hdev);
787
788 conn = hci_conn_hash_lookup_handle(hdev, handle);
789 if (conn) {
790 if (!ev->status) {
791 if (ev->encrypt)
792 conn->link_mode |= HCI_LM_ENCRYPT;
793 else
794 conn->link_mode &= ~HCI_LM_ENCRYPT;
795 }
796
797 clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
798
799 hci_encrypt_cfm(conn, ev->status, ev->encrypt);
800 }
801
802 hci_dev_unlock(hdev);
803 }
804
805 /* Change Connection Link Key Complete */
806 static inline void hci_change_conn_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
807 {
808 struct hci_ev_change_conn_link_key_complete *ev = (struct hci_ev_change_conn_link_key_complete *) skb->data;
809 struct hci_conn *conn = NULL;
810 __u16 handle = __le16_to_cpu(ev->handle);
811
812 BT_DBG("%s status %d", hdev->name, ev->status);
813
814 hci_dev_lock(hdev);
815
816 conn = hci_conn_hash_lookup_handle(hdev, handle);
817 if (conn) {
818 if (!ev->status)
819 conn->link_mode |= HCI_LM_SECURE;
820
821 clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
822
823 hci_key_change_cfm(conn, ev->status);
824 }
825
826 hci_dev_unlock(hdev);
827 }
828
829 /* Pin Code Request*/
830 static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
831 {
832 }
833
834 /* Link Key Request */
835 static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
836 {
837 }
838
839 /* Link Key Notification */
840 static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
841 {
842 }
843
844 /* Clock Offset */
845 static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
846 {
847 struct hci_ev_clock_offset *ev = (struct hci_ev_clock_offset *) skb->data;
848 struct hci_conn *conn = NULL;
849 __u16 handle = __le16_to_cpu(ev->handle);
850
851 BT_DBG("%s status %d", hdev->name, ev->status);
852
853 hci_dev_lock(hdev);
854
855 conn = hci_conn_hash_lookup_handle(hdev, handle);
856 if (conn && !ev->status) {
857 struct inquiry_entry *ie;
858
859 if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
860 ie->data.clock_offset = ev->clock_offset;
861 ie->timestamp = jiffies;
862 }
863 }
864
865 hci_dev_unlock(hdev);
866 }
867
868 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
869 {
870 struct hci_event_hdr *hdr = (struct hci_event_hdr *) skb->data;
871 struct hci_ev_cmd_complete *ec;
872 struct hci_ev_cmd_status *cs;
873 u16 opcode, ocf, ogf;
874
875 skb_pull(skb, HCI_EVENT_HDR_SIZE);
876
877 BT_DBG("%s evt 0x%x", hdev->name, hdr->evt);
878
879 switch (hdr->evt) {
880 case HCI_EV_NUM_COMP_PKTS:
881 hci_num_comp_pkts_evt(hdev, skb);
882 break;
883
884 case HCI_EV_INQUIRY_COMPLETE:
885 hci_inquiry_complete_evt(hdev, skb);
886 break;
887
888 case HCI_EV_INQUIRY_RESULT:
889 hci_inquiry_result_evt(hdev, skb);
890 break;
891
892 case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
893 hci_inquiry_result_with_rssi_evt(hdev, skb);
894 break;
895
896 case HCI_EV_CONN_REQUEST:
897 hci_conn_request_evt(hdev, skb);
898 break;
899
900 case HCI_EV_CONN_COMPLETE:
901 hci_conn_complete_evt(hdev, skb);
902 break;
903
904 case HCI_EV_DISCONN_COMPLETE:
905 hci_disconn_complete_evt(hdev, skb);
906 break;
907
908 case HCI_EV_ROLE_CHANGE:
909 hci_role_change_evt(hdev, skb);
910 break;
911
912 case HCI_EV_AUTH_COMPLETE:
913 hci_auth_complete_evt(hdev, skb);
914 break;
915
916 case HCI_EV_ENCRYPT_CHANGE:
917 hci_encrypt_change_evt(hdev, skb);
918 break;
919
920 case HCI_EV_CHANGE_CONN_LINK_KEY_COMPLETE:
921 hci_change_conn_link_key_complete_evt(hdev, skb);
922 break;
923
924 case HCI_EV_PIN_CODE_REQ:
925 hci_pin_code_request_evt(hdev, skb);
926 break;
927
928 case HCI_EV_LINK_KEY_REQ:
929 hci_link_key_request_evt(hdev, skb);
930 break;
931
932 case HCI_EV_LINK_KEY_NOTIFY:
933 hci_link_key_notify_evt(hdev, skb);
934 break;
935
936 case HCI_EV_CLOCK_OFFSET:
937 hci_clock_offset_evt(hdev, skb);
938 break;
939
940 case HCI_EV_CMD_STATUS:
941 cs = (struct hci_ev_cmd_status *) skb->data;
942 skb_pull(skb, sizeof(cs));
943
944 opcode = __le16_to_cpu(cs->opcode);
945 ogf = hci_opcode_ogf(opcode);
946 ocf = hci_opcode_ocf(opcode);
947
948 switch (ogf) {
949 case OGF_INFO_PARAM:
950 hci_cs_info_param(hdev, ocf, cs->status);
951 break;
952
953 case OGF_HOST_CTL:
954 hci_cs_host_ctl(hdev, ocf, cs->status);
955 break;
956
957 case OGF_LINK_CTL:
958 hci_cs_link_ctl(hdev, ocf, cs->status);
959 break;
960
961 case OGF_LINK_POLICY:
962 hci_cs_link_policy(hdev, ocf, cs->status);
963 break;
964
965 default:
966 BT_DBG("%s Command Status OGF %x", hdev->name, ogf);
967 break;
968 }
969
970 if (cs->ncmd) {
971 atomic_set(&hdev->cmd_cnt, 1);
972 if (!skb_queue_empty(&hdev->cmd_q))
973 hci_sched_cmd(hdev);
974 }
975 break;
976
977 case HCI_EV_CMD_COMPLETE:
978 ec = (struct hci_ev_cmd_complete *) skb->data;
979 skb_pull(skb, sizeof(*ec));
980
981 opcode = __le16_to_cpu(ec->opcode);
982 ogf = hci_opcode_ogf(opcode);
983 ocf = hci_opcode_ocf(opcode);
984
985 switch (ogf) {
986 case OGF_INFO_PARAM:
987 hci_cc_info_param(hdev, ocf, skb);
988 break;
989
990 case OGF_HOST_CTL:
991 hci_cc_host_ctl(hdev, ocf, skb);
992 break;
993
994 case OGF_LINK_CTL:
995 hci_cc_link_ctl(hdev, ocf, skb);
996 break;
997
998 case OGF_LINK_POLICY:
999 hci_cc_link_policy(hdev, ocf, skb);
1000 break;
1001
1002 default:
1003 BT_DBG("%s Command Completed OGF %x", hdev->name, ogf);
1004 break;
1005 }
1006
1007 if (ec->ncmd) {
1008 atomic_set(&hdev->cmd_cnt, 1);
1009 if (!skb_queue_empty(&hdev->cmd_q))
1010 hci_sched_cmd(hdev);
1011 }
1012 break;
1013 }
1014
1015 kfree_skb(skb);
1016 hdev->stat.evt_rx++;
1017 }
1018
1019 /* Generate internal stack event */
1020 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
1021 {
1022 struct hci_event_hdr *hdr;
1023 struct hci_ev_stack_internal *ev;
1024 struct sk_buff *skb;
1025
1026 skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
1027 if (!skb)
1028 return;
1029
1030 hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
1031 hdr->evt = HCI_EV_STACK_INTERNAL;
1032 hdr->plen = sizeof(*ev) + dlen;
1033
1034 ev = (void *) skb_put(skb, sizeof(*ev) + dlen);
1035 ev->type = type;
1036 memcpy(ev->data, data, dlen);
1037
1038 skb->pkt_type = HCI_EVENT_PKT;
1039 skb->dev = (void *) hdev;
1040 hci_send_to_sock(hdev, skb);
1041 kfree_skb(skb);
1042 }
1043 EXPORT_SYMBOL(hci_si_event);
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