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1da177e4 LT |
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> | |
1da177e4 LT |
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 | ||
576c7d85 MH |
1038 | bt_cb(skb)->incoming = 1; |
1039 | do_gettimeofday(&skb->stamp); | |
1040 | ||
1da177e4 LT |
1041 | skb->pkt_type = HCI_EVENT_PKT; |
1042 | skb->dev = (void *) hdev; | |
1043 | hci_send_to_sock(hdev, skb); | |
1044 | kfree_skb(skb); | |
1045 | } |