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include/qemu/osdep.h: Don't include qapi/error.h
[mirror_qemu.git] / hw / bt / hci.c
1 /*
2 * QEMU Bluetooth HCI logic.
3 *
4 * Copyright (C) 2007 OpenMoko, Inc.
5 * Copyright (C) 2008 Andrzej Zaborowski <balrog@zabor.org>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; either version 2 of
10 * the License, or (at your option) any later version.
11 *
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "qemu/osdep.h"
22 #include "qapi/error.h"
23 #include "qemu-common.h"
24 #include "qemu/timer.h"
25 #include "hw/usb.h"
26 #include "sysemu/bt.h"
27 #include "hw/bt.h"
28 #include "qapi/qmp/qerror.h"
29 #include "sysemu/replay.h"
30
31 struct bt_hci_s {
32 uint8_t *(*evt_packet)(void *opaque);
33 void (*evt_submit)(void *opaque, int len);
34 void *opaque;
35 uint8_t evt_buf[256];
36
37 uint8_t acl_buf[4096];
38 int acl_len;
39
40 uint16_t asb_handle;
41 uint16_t psb_handle;
42
43 int last_cmd; /* Note: Always little-endian */
44
45 struct bt_device_s *conn_req_host;
46
47 struct {
48 int inquire;
49 int periodic;
50 int responses_left;
51 int responses;
52 QEMUTimer *inquiry_done;
53 QEMUTimer *inquiry_next;
54 int inquiry_length;
55 int inquiry_period;
56 int inquiry_mode;
57
58 #define HCI_HANDLE_OFFSET 0x20
59 #define HCI_HANDLES_MAX 0x10
60 struct bt_hci_master_link_s {
61 struct bt_link_s *link;
62 void (*lmp_acl_data)(struct bt_link_s *link,
63 const uint8_t *data, int start, int len);
64 QEMUTimer *acl_mode_timer;
65 } handle[HCI_HANDLES_MAX];
66 uint32_t role_bmp;
67 int last_handle;
68 int connecting;
69 bdaddr_t awaiting_bdaddr[HCI_HANDLES_MAX];
70 } lm;
71
72 uint8_t event_mask[8];
73 uint16_t voice_setting; /* Notw: Always little-endian */
74 uint16_t conn_accept_tout;
75 QEMUTimer *conn_accept_timer;
76
77 struct HCIInfo info;
78 struct bt_device_s device;
79
80 Error *replay_blocker;
81 };
82
83 #define DEFAULT_RSSI_DBM 20
84
85 #define hci_from_info(ptr) container_of((ptr), struct bt_hci_s, info)
86 #define hci_from_device(ptr) container_of((ptr), struct bt_hci_s, device)
87
88 struct bt_hci_link_s {
89 struct bt_link_s btlink;
90 uint16_t handle; /* Local */
91 };
92
93 /* LMP layer emulation */
94 #if 0
95 static void bt_submit_lmp(struct bt_device_s *bt, int length, uint8_t *data)
96 {
97 int resp, resplen, error, op, tr;
98 uint8_t respdata[17];
99
100 if (length < 1)
101 return;
102
103 tr = *data & 1;
104 op = *(data ++) >> 1;
105 resp = LMP_ACCEPTED;
106 resplen = 2;
107 respdata[1] = op;
108 error = 0;
109 length --;
110
111 if (op >= 0x7c) { /* Extended opcode */
112 op |= *(data ++) << 8;
113 resp = LMP_ACCEPTED_EXT;
114 resplen = 4;
115 respdata[0] = op >> 8;
116 respdata[1] = op & 0xff;
117 length --;
118 }
119
120 switch (op) {
121 case LMP_ACCEPTED:
122 /* data[0] Op code
123 */
124 if (length < 1) {
125 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
126 goto not_accepted;
127 }
128 resp = 0;
129 break;
130
131 case LMP_ACCEPTED_EXT:
132 /* data[0] Escape op code
133 * data[1] Extended op code
134 */
135 if (length < 2) {
136 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
137 goto not_accepted;
138 }
139 resp = 0;
140 break;
141
142 case LMP_NOT_ACCEPTED:
143 /* data[0] Op code
144 * data[1] Error code
145 */
146 if (length < 2) {
147 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
148 goto not_accepted;
149 }
150 resp = 0;
151 break;
152
153 case LMP_NOT_ACCEPTED_EXT:
154 /* data[0] Op code
155 * data[1] Extended op code
156 * data[2] Error code
157 */
158 if (length < 3) {
159 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
160 goto not_accepted;
161 }
162 resp = 0;
163 break;
164
165 case LMP_HOST_CONNECTION_REQ:
166 break;
167
168 case LMP_SETUP_COMPLETE:
169 resp = LMP_SETUP_COMPLETE;
170 resplen = 1;
171 bt->setup = 1;
172 break;
173
174 case LMP_DETACH:
175 /* data[0] Error code
176 */
177 if (length < 1) {
178 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
179 goto not_accepted;
180 }
181 bt->setup = 0;
182 resp = 0;
183 break;
184
185 case LMP_SUPERVISION_TIMEOUT:
186 /* data[0,1] Supervision timeout
187 */
188 if (length < 2) {
189 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
190 goto not_accepted;
191 }
192 resp = 0;
193 break;
194
195 case LMP_QUALITY_OF_SERVICE:
196 resp = 0;
197 /* Fall through */
198 case LMP_QOS_REQ:
199 /* data[0,1] Poll interval
200 * data[2] N(BC)
201 */
202 if (length < 3) {
203 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
204 goto not_accepted;
205 }
206 break;
207
208 case LMP_MAX_SLOT:
209 resp = 0;
210 /* Fall through */
211 case LMP_MAX_SLOT_REQ:
212 /* data[0] Max slots
213 */
214 if (length < 1) {
215 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
216 goto not_accepted;
217 }
218 break;
219
220 case LMP_AU_RAND:
221 case LMP_IN_RAND:
222 case LMP_COMB_KEY:
223 /* data[0-15] Random number
224 */
225 if (length < 16) {
226 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
227 goto not_accepted;
228 }
229 if (op == LMP_AU_RAND) {
230 if (bt->key_present) {
231 resp = LMP_SRES;
232 resplen = 5;
233 /* XXX: [Part H] Section 6.1 on page 801 */
234 } else {
235 error = HCI_PIN_OR_KEY_MISSING;
236 goto not_accepted;
237 }
238 } else if (op == LMP_IN_RAND) {
239 error = HCI_PAIRING_NOT_ALLOWED;
240 goto not_accepted;
241 } else {
242 /* XXX: [Part H] Section 3.2 on page 779 */
243 resp = LMP_UNIT_KEY;
244 resplen = 17;
245 memcpy(respdata + 1, bt->key, 16);
246
247 error = HCI_UNIT_LINK_KEY_USED;
248 goto not_accepted;
249 }
250 break;
251
252 case LMP_UNIT_KEY:
253 /* data[0-15] Key
254 */
255 if (length < 16) {
256 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
257 goto not_accepted;
258 }
259 memcpy(bt->key, data, 16);
260 bt->key_present = 1;
261 break;
262
263 case LMP_SRES:
264 /* data[0-3] Authentication response
265 */
266 if (length < 4) {
267 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
268 goto not_accepted;
269 }
270 break;
271
272 case LMP_CLKOFFSET_REQ:
273 resp = LMP_CLKOFFSET_RES;
274 resplen = 3;
275 respdata[1] = 0x33;
276 respdata[2] = 0x33;
277 break;
278
279 case LMP_CLKOFFSET_RES:
280 /* data[0,1] Clock offset
281 * (Slave to master only)
282 */
283 if (length < 2) {
284 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
285 goto not_accepted;
286 }
287 break;
288
289 case LMP_VERSION_REQ:
290 case LMP_VERSION_RES:
291 /* data[0] VersNr
292 * data[1,2] CompId
293 * data[3,4] SubVersNr
294 */
295 if (length < 5) {
296 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
297 goto not_accepted;
298 }
299 if (op == LMP_VERSION_REQ) {
300 resp = LMP_VERSION_RES;
301 resplen = 6;
302 respdata[1] = 0x20;
303 respdata[2] = 0xff;
304 respdata[3] = 0xff;
305 respdata[4] = 0xff;
306 respdata[5] = 0xff;
307 } else
308 resp = 0;
309 break;
310
311 case LMP_FEATURES_REQ:
312 case LMP_FEATURES_RES:
313 /* data[0-7] Features
314 */
315 if (length < 8) {
316 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
317 goto not_accepted;
318 }
319 if (op == LMP_FEATURES_REQ) {
320 resp = LMP_FEATURES_RES;
321 resplen = 9;
322 respdata[1] = (bt->lmp_caps >> 0) & 0xff;
323 respdata[2] = (bt->lmp_caps >> 8) & 0xff;
324 respdata[3] = (bt->lmp_caps >> 16) & 0xff;
325 respdata[4] = (bt->lmp_caps >> 24) & 0xff;
326 respdata[5] = (bt->lmp_caps >> 32) & 0xff;
327 respdata[6] = (bt->lmp_caps >> 40) & 0xff;
328 respdata[7] = (bt->lmp_caps >> 48) & 0xff;
329 respdata[8] = (bt->lmp_caps >> 56) & 0xff;
330 } else
331 resp = 0;
332 break;
333
334 case LMP_NAME_REQ:
335 /* data[0] Name offset
336 */
337 if (length < 1) {
338 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
339 goto not_accepted;
340 }
341 resp = LMP_NAME_RES;
342 resplen = 17;
343 respdata[1] = data[0];
344 respdata[2] = strlen(bt->lmp_name);
345 memset(respdata + 3, 0x00, 14);
346 if (respdata[2] > respdata[1])
347 memcpy(respdata + 3, bt->lmp_name + respdata[1],
348 respdata[2] - respdata[1]);
349 break;
350
351 case LMP_NAME_RES:
352 /* data[0] Name offset
353 * data[1] Name length
354 * data[2-15] Name fragment
355 */
356 if (length < 16) {
357 error = HCI_UNSUPPORTED_LMP_PARAMETER_VALUE;
358 goto not_accepted;
359 }
360 resp = 0;
361 break;
362
363 default:
364 error = HCI_UNKNOWN_LMP_PDU;
365 /* Fall through */
366 not_accepted:
367 if (op >> 8) {
368 resp = LMP_NOT_ACCEPTED_EXT;
369 resplen = 5;
370 respdata[0] = op >> 8;
371 respdata[1] = op & 0xff;
372 respdata[2] = error;
373 } else {
374 resp = LMP_NOT_ACCEPTED;
375 resplen = 3;
376 respdata[0] = op & 0xff;
377 respdata[1] = error;
378 }
379 }
380
381 if (resp == 0)
382 return;
383
384 if (resp >> 8) {
385 respdata[0] = resp >> 8;
386 respdata[1] = resp & 0xff;
387 } else
388 respdata[0] = resp & 0xff;
389
390 respdata[0] <<= 1;
391 respdata[0] |= tr;
392 }
393
394 static void bt_submit_raw_acl(struct bt_piconet_s *net, int length, uint8_t *data)
395 {
396 struct bt_device_s *slave;
397 if (length < 1)
398 return;
399
400 slave = 0;
401 #if 0
402 slave = net->slave;
403 #endif
404
405 switch (data[0] & 3) {
406 case LLID_ACLC:
407 bt_submit_lmp(slave, length - 1, data + 1);
408 break;
409 case LLID_ACLU_START:
410 #if 0
411 bt_sumbit_l2cap(slave, length - 1, data + 1, (data[0] >> 2) & 1);
412 breka;
413 #endif
414 default:
415 case LLID_ACLU_CONT:
416 break;
417 }
418 }
419 #endif
420
421 /* HCI layer emulation */
422
423 /* Note: we could ignore endiannes because unswapped handles will still
424 * be valid as connection identifiers for the guest - they don't have to
425 * be continuously allocated. We do it though, to preserve similar
426 * behaviour between hosts. Some things, like the BD_ADDR cannot be
427 * preserved though (for example if a real hci is used). */
428 #ifdef HOST_WORDS_BIGENDIAN
429 # define HNDL(raw) bswap16(raw)
430 #else
431 # define HNDL(raw) (raw)
432 #endif
433
434 static const uint8_t bt_event_reserved_mask[8] = {
435 0xff, 0x9f, 0xfb, 0xff, 0x07, 0x18, 0x00, 0x00,
436 };
437
438
439 static void null_hci_send(struct HCIInfo *hci, const uint8_t *data, int len)
440 {
441 }
442
443 static int null_hci_addr_set(struct HCIInfo *hci, const uint8_t *bd_addr)
444 {
445 return -ENOTSUP;
446 }
447
448 struct HCIInfo null_hci = {
449 .cmd_send = null_hci_send,
450 .sco_send = null_hci_send,
451 .acl_send = null_hci_send,
452 .bdaddr_set = null_hci_addr_set,
453 };
454
455
456 static inline uint8_t *bt_hci_event_start(struct bt_hci_s *hci,
457 int evt, int len)
458 {
459 uint8_t *packet, mask;
460 int mask_byte;
461
462 if (len > 255) {
463 fprintf(stderr, "%s: HCI event params too long (%ib)\n",
464 __FUNCTION__, len);
465 exit(-1);
466 }
467
468 mask_byte = (evt - 1) >> 3;
469 mask = 1 << ((evt - 1) & 3);
470 if (mask & bt_event_reserved_mask[mask_byte] & ~hci->event_mask[mask_byte])
471 return NULL;
472
473 packet = hci->evt_packet(hci->opaque);
474 packet[0] = evt;
475 packet[1] = len;
476
477 return &packet[2];
478 }
479
480 static inline void bt_hci_event(struct bt_hci_s *hci, int evt,
481 void *params, int len)
482 {
483 uint8_t *packet = bt_hci_event_start(hci, evt, len);
484
485 if (!packet)
486 return;
487
488 if (len)
489 memcpy(packet, params, len);
490
491 hci->evt_submit(hci->opaque, len + 2);
492 }
493
494 static inline void bt_hci_event_status(struct bt_hci_s *hci, int status)
495 {
496 evt_cmd_status params = {
497 .status = status,
498 .ncmd = 1,
499 .opcode = hci->last_cmd,
500 };
501
502 bt_hci_event(hci, EVT_CMD_STATUS, &params, EVT_CMD_STATUS_SIZE);
503 }
504
505 static inline void bt_hci_event_complete(struct bt_hci_s *hci,
506 void *ret, int len)
507 {
508 uint8_t *packet = bt_hci_event_start(hci, EVT_CMD_COMPLETE,
509 len + EVT_CMD_COMPLETE_SIZE);
510 evt_cmd_complete *params = (evt_cmd_complete *) packet;
511
512 if (!packet)
513 return;
514
515 params->ncmd = 1;
516 params->opcode = hci->last_cmd;
517 if (len)
518 memcpy(&packet[EVT_CMD_COMPLETE_SIZE], ret, len);
519
520 hci->evt_submit(hci->opaque, len + EVT_CMD_COMPLETE_SIZE + 2);
521 }
522
523 static void bt_hci_inquiry_done(void *opaque)
524 {
525 struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
526 uint8_t status = HCI_SUCCESS;
527
528 if (!hci->lm.periodic)
529 hci->lm.inquire = 0;
530
531 /* The specification is inconsistent about this one. Page 565 reads
532 * "The event parameters of Inquiry Complete event will have a summary
533 * of the result from the Inquiry process, which reports the number of
534 * nearby Bluetooth devices that responded [so hci->responses].", but
535 * Event Parameters (see page 729) has only Status. */
536 bt_hci_event(hci, EVT_INQUIRY_COMPLETE, &status, 1);
537 }
538
539 static void bt_hci_inquiry_result_standard(struct bt_hci_s *hci,
540 struct bt_device_s *slave)
541 {
542 inquiry_info params = {
543 .num_responses = 1,
544 .bdaddr = BAINIT(&slave->bd_addr),
545 .pscan_rep_mode = 0x00, /* R0 */
546 .pscan_period_mode = 0x00, /* P0 - deprecated */
547 .pscan_mode = 0x00, /* Standard scan - deprecated */
548 .dev_class[0] = slave->class[0],
549 .dev_class[1] = slave->class[1],
550 .dev_class[2] = slave->class[2],
551 /* TODO: return the clkoff *differenece* */
552 .clock_offset = slave->clkoff, /* Note: no swapping */
553 };
554
555 bt_hci_event(hci, EVT_INQUIRY_RESULT, &params, INQUIRY_INFO_SIZE);
556 }
557
558 static void bt_hci_inquiry_result_with_rssi(struct bt_hci_s *hci,
559 struct bt_device_s *slave)
560 {
561 inquiry_info_with_rssi params = {
562 .num_responses = 1,
563 .bdaddr = BAINIT(&slave->bd_addr),
564 .pscan_rep_mode = 0x00, /* R0 */
565 .pscan_period_mode = 0x00, /* P0 - deprecated */
566 .dev_class[0] = slave->class[0],
567 .dev_class[1] = slave->class[1],
568 .dev_class[2] = slave->class[2],
569 /* TODO: return the clkoff *differenece* */
570 .clock_offset = slave->clkoff, /* Note: no swapping */
571 .rssi = DEFAULT_RSSI_DBM,
572 };
573
574 bt_hci_event(hci, EVT_INQUIRY_RESULT_WITH_RSSI,
575 &params, INQUIRY_INFO_WITH_RSSI_SIZE);
576 }
577
578 static void bt_hci_inquiry_result(struct bt_hci_s *hci,
579 struct bt_device_s *slave)
580 {
581 if (!slave->inquiry_scan || !hci->lm.responses_left)
582 return;
583
584 hci->lm.responses_left --;
585 hci->lm.responses ++;
586
587 switch (hci->lm.inquiry_mode) {
588 case 0x00:
589 bt_hci_inquiry_result_standard(hci, slave);
590 return;
591 case 0x01:
592 bt_hci_inquiry_result_with_rssi(hci, slave);
593 return;
594 default:
595 fprintf(stderr, "%s: bad inquiry mode %02x\n", __FUNCTION__,
596 hci->lm.inquiry_mode);
597 exit(-1);
598 }
599 }
600
601 static void bt_hci_mod_timer_1280ms(QEMUTimer *timer, int period)
602 {
603 timer_mod(timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
604 (uint64_t)(period << 7) * 10000000);
605 }
606
607 static void bt_hci_inquiry_start(struct bt_hci_s *hci, int length)
608 {
609 struct bt_device_s *slave;
610
611 hci->lm.inquiry_length = length;
612 for (slave = hci->device.net->slave; slave; slave = slave->next)
613 /* Don't uncover ourselves. */
614 if (slave != &hci->device)
615 bt_hci_inquiry_result(hci, slave);
616
617 /* TODO: register for a callback on a new device's addition to the
618 * scatternet so that if it's added before inquiry_length expires,
619 * an Inquiry Result is generated immediately. Alternatively re-loop
620 * through the devices on the inquiry_length expiration and report
621 * devices not seen before. */
622 if (hci->lm.responses_left)
623 bt_hci_mod_timer_1280ms(hci->lm.inquiry_done, hci->lm.inquiry_length);
624 else
625 bt_hci_inquiry_done(hci);
626
627 if (hci->lm.periodic)
628 bt_hci_mod_timer_1280ms(hci->lm.inquiry_next, hci->lm.inquiry_period);
629 }
630
631 static void bt_hci_inquiry_next(void *opaque)
632 {
633 struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
634
635 hci->lm.responses_left += hci->lm.responses;
636 hci->lm.responses = 0;
637 bt_hci_inquiry_start(hci, hci->lm.inquiry_length);
638 }
639
640 static inline int bt_hci_handle_bad(struct bt_hci_s *hci, uint16_t handle)
641 {
642 return !(handle & HCI_HANDLE_OFFSET) ||
643 handle >= (HCI_HANDLE_OFFSET | HCI_HANDLES_MAX) ||
644 !hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
645 }
646
647 static inline int bt_hci_role_master(struct bt_hci_s *hci, uint16_t handle)
648 {
649 return !!(hci->lm.role_bmp & (1 << (handle & ~HCI_HANDLE_OFFSET)));
650 }
651
652 static inline struct bt_device_s *bt_hci_remote_dev(struct bt_hci_s *hci,
653 uint16_t handle)
654 {
655 struct bt_link_s *link = hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
656
657 return bt_hci_role_master(hci, handle) ? link->slave : link->host;
658 }
659
660 static void bt_hci_mode_tick(void *opaque);
661 static void bt_hci_lmp_link_establish(struct bt_hci_s *hci,
662 struct bt_link_s *link, int master)
663 {
664 hci->lm.handle[hci->lm.last_handle].link = link;
665
666 if (master) {
667 /* We are the master side of an ACL link */
668 hci->lm.role_bmp |= 1 << hci->lm.last_handle;
669
670 hci->lm.handle[hci->lm.last_handle].lmp_acl_data =
671 link->slave->lmp_acl_data;
672 } else {
673 /* We are the slave side of an ACL link */
674 hci->lm.role_bmp &= ~(1 << hci->lm.last_handle);
675
676 hci->lm.handle[hci->lm.last_handle].lmp_acl_data =
677 link->host->lmp_acl_resp;
678 }
679
680 /* Mode */
681 if (master) {
682 link->acl_mode = acl_active;
683 hci->lm.handle[hci->lm.last_handle].acl_mode_timer =
684 timer_new_ns(QEMU_CLOCK_VIRTUAL, bt_hci_mode_tick, link);
685 }
686 }
687
688 static void bt_hci_lmp_link_teardown(struct bt_hci_s *hci, uint16_t handle)
689 {
690 handle &= ~HCI_HANDLE_OFFSET;
691 hci->lm.handle[handle].link = NULL;
692
693 if (bt_hci_role_master(hci, handle)) {
694 timer_del(hci->lm.handle[handle].acl_mode_timer);
695 timer_free(hci->lm.handle[handle].acl_mode_timer);
696 }
697 }
698
699 static int bt_hci_connect(struct bt_hci_s *hci, bdaddr_t *bdaddr)
700 {
701 struct bt_device_s *slave;
702 struct bt_link_s link;
703
704 for (slave = hci->device.net->slave; slave; slave = slave->next)
705 if (slave->page_scan && !bacmp(&slave->bd_addr, bdaddr))
706 break;
707 if (!slave || slave == &hci->device)
708 return -ENODEV;
709
710 bacpy(&hci->lm.awaiting_bdaddr[hci->lm.connecting ++], &slave->bd_addr);
711
712 link.slave = slave;
713 link.host = &hci->device;
714 link.slave->lmp_connection_request(&link); /* Always last */
715
716 return 0;
717 }
718
719 static void bt_hci_connection_reject(struct bt_hci_s *hci,
720 struct bt_device_s *host, uint8_t because)
721 {
722 struct bt_link_s link = {
723 .slave = &hci->device,
724 .host = host,
725 /* Rest uninitialised */
726 };
727
728 host->reject_reason = because;
729 host->lmp_connection_complete(&link);
730 }
731
732 static void bt_hci_connection_reject_event(struct bt_hci_s *hci,
733 bdaddr_t *bdaddr)
734 {
735 evt_conn_complete params;
736
737 params.status = HCI_NO_CONNECTION;
738 params.handle = 0;
739 bacpy(&params.bdaddr, bdaddr);
740 params.link_type = ACL_LINK;
741 params.encr_mode = 0x00; /* Encryption not required */
742 bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
743 }
744
745 static void bt_hci_connection_accept(struct bt_hci_s *hci,
746 struct bt_device_s *host)
747 {
748 struct bt_hci_link_s *link = g_malloc0(sizeof(struct bt_hci_link_s));
749 evt_conn_complete params;
750 uint16_t handle;
751 uint8_t status = HCI_SUCCESS;
752 int tries = HCI_HANDLES_MAX;
753
754 /* Make a connection handle */
755 do {
756 while (hci->lm.handle[++ hci->lm.last_handle].link && -- tries)
757 hci->lm.last_handle &= HCI_HANDLES_MAX - 1;
758 handle = hci->lm.last_handle | HCI_HANDLE_OFFSET;
759 } while ((handle == hci->asb_handle || handle == hci->psb_handle) &&
760 tries);
761
762 if (!tries) {
763 g_free(link);
764 bt_hci_connection_reject(hci, host, HCI_REJECTED_LIMITED_RESOURCES);
765 status = HCI_NO_CONNECTION;
766 goto complete;
767 }
768
769 link->btlink.slave = &hci->device;
770 link->btlink.host = host;
771 link->handle = handle;
772
773 /* Link established */
774 bt_hci_lmp_link_establish(hci, &link->btlink, 0);
775
776 complete:
777 params.status = status;
778 params.handle = HNDL(handle);
779 bacpy(&params.bdaddr, &host->bd_addr);
780 params.link_type = ACL_LINK;
781 params.encr_mode = 0x00; /* Encryption not required */
782 bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
783
784 /* Neets to be done at the very end because it can trigger a (nested)
785 * disconnected, in case the other and had cancelled the request
786 * locally. */
787 if (status == HCI_SUCCESS) {
788 host->reject_reason = 0;
789 host->lmp_connection_complete(&link->btlink);
790 }
791 }
792
793 static void bt_hci_lmp_connection_request(struct bt_link_s *link)
794 {
795 struct bt_hci_s *hci = hci_from_device(link->slave);
796 evt_conn_request params;
797
798 if (hci->conn_req_host) {
799 bt_hci_connection_reject(hci, link->host,
800 HCI_REJECTED_LIMITED_RESOURCES);
801 return;
802 }
803 hci->conn_req_host = link->host;
804 /* TODO: if masked and auto-accept, then auto-accept,
805 * if masked and not auto-accept, then auto-reject */
806 /* TODO: kick the hci->conn_accept_timer, timeout after
807 * hci->conn_accept_tout * 0.625 msec */
808
809 bacpy(&params.bdaddr, &link->host->bd_addr);
810 memcpy(&params.dev_class, &link->host->class, sizeof(params.dev_class));
811 params.link_type = ACL_LINK;
812 bt_hci_event(hci, EVT_CONN_REQUEST, &params, EVT_CONN_REQUEST_SIZE);
813 }
814
815 static void bt_hci_conn_accept_timeout(void *opaque)
816 {
817 struct bt_hci_s *hci = (struct bt_hci_s *) opaque;
818
819 if (!hci->conn_req_host)
820 /* Already accepted or rejected. If the other end cancelled the
821 * connection request then we still have to reject or accept it
822 * and then we'll get a disconnect. */
823 return;
824
825 /* TODO */
826 }
827
828 /* Remove from the list of devices which we wanted to connect to and
829 * are awaiting a response from. If the callback sees a response from
830 * a device which is not on the list it will assume it's a connection
831 * that's been cancelled by the host in the meantime and immediately
832 * try to detach the link and send a Connection Complete. */
833 static int bt_hci_lmp_connection_ready(struct bt_hci_s *hci,
834 bdaddr_t *bdaddr)
835 {
836 int i;
837
838 for (i = 0; i < hci->lm.connecting; i ++)
839 if (!bacmp(&hci->lm.awaiting_bdaddr[i], bdaddr)) {
840 if (i < -- hci->lm.connecting)
841 bacpy(&hci->lm.awaiting_bdaddr[i],
842 &hci->lm.awaiting_bdaddr[hci->lm.connecting]);
843 return 0;
844 }
845
846 return 1;
847 }
848
849 static void bt_hci_lmp_connection_complete(struct bt_link_s *link)
850 {
851 struct bt_hci_s *hci = hci_from_device(link->host);
852 evt_conn_complete params;
853 uint16_t handle;
854 uint8_t status = HCI_SUCCESS;
855 int tries = HCI_HANDLES_MAX;
856
857 if (bt_hci_lmp_connection_ready(hci, &link->slave->bd_addr)) {
858 if (!hci->device.reject_reason)
859 link->slave->lmp_disconnect_slave(link);
860 handle = 0;
861 status = HCI_NO_CONNECTION;
862 goto complete;
863 }
864
865 if (hci->device.reject_reason) {
866 handle = 0;
867 status = hci->device.reject_reason;
868 goto complete;
869 }
870
871 /* Make a connection handle */
872 do {
873 while (hci->lm.handle[++ hci->lm.last_handle].link && -- tries)
874 hci->lm.last_handle &= HCI_HANDLES_MAX - 1;
875 handle = hci->lm.last_handle | HCI_HANDLE_OFFSET;
876 } while ((handle == hci->asb_handle || handle == hci->psb_handle) &&
877 tries);
878
879 if (!tries) {
880 link->slave->lmp_disconnect_slave(link);
881 status = HCI_NO_CONNECTION;
882 goto complete;
883 }
884
885 /* Link established */
886 link->handle = handle;
887 bt_hci_lmp_link_establish(hci, link, 1);
888
889 complete:
890 params.status = status;
891 params.handle = HNDL(handle);
892 params.link_type = ACL_LINK;
893 bacpy(&params.bdaddr, &link->slave->bd_addr);
894 params.encr_mode = 0x00; /* Encryption not required */
895 bt_hci_event(hci, EVT_CONN_COMPLETE, &params, EVT_CONN_COMPLETE_SIZE);
896 }
897
898 static void bt_hci_disconnect(struct bt_hci_s *hci,
899 uint16_t handle, int reason)
900 {
901 struct bt_link_s *btlink =
902 hci->lm.handle[handle & ~HCI_HANDLE_OFFSET].link;
903 struct bt_hci_link_s *link;
904 evt_disconn_complete params;
905
906 if (bt_hci_role_master(hci, handle)) {
907 btlink->slave->reject_reason = reason;
908 btlink->slave->lmp_disconnect_slave(btlink);
909 /* The link pointer is invalid from now on */
910
911 goto complete;
912 }
913
914 btlink->host->reject_reason = reason;
915 btlink->host->lmp_disconnect_master(btlink);
916
917 /* We are the slave, we get to clean this burden */
918 link = (struct bt_hci_link_s *) btlink;
919 g_free(link);
920
921 complete:
922 bt_hci_lmp_link_teardown(hci, handle);
923
924 params.status = HCI_SUCCESS;
925 params.handle = HNDL(handle);
926 params.reason = HCI_CONNECTION_TERMINATED;
927 bt_hci_event(hci, EVT_DISCONN_COMPLETE,
928 &params, EVT_DISCONN_COMPLETE_SIZE);
929 }
930
931 /* TODO: use only one function */
932 static void bt_hci_lmp_disconnect_host(struct bt_link_s *link)
933 {
934 struct bt_hci_s *hci = hci_from_device(link->host);
935 uint16_t handle = link->handle;
936 evt_disconn_complete params;
937
938 bt_hci_lmp_link_teardown(hci, handle);
939
940 params.status = HCI_SUCCESS;
941 params.handle = HNDL(handle);
942 params.reason = hci->device.reject_reason;
943 bt_hci_event(hci, EVT_DISCONN_COMPLETE,
944 &params, EVT_DISCONN_COMPLETE_SIZE);
945 }
946
947 static void bt_hci_lmp_disconnect_slave(struct bt_link_s *btlink)
948 {
949 struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
950 struct bt_hci_s *hci = hci_from_device(btlink->slave);
951 uint16_t handle = link->handle;
952 evt_disconn_complete params;
953
954 g_free(link);
955
956 bt_hci_lmp_link_teardown(hci, handle);
957
958 params.status = HCI_SUCCESS;
959 params.handle = HNDL(handle);
960 params.reason = hci->device.reject_reason;
961 bt_hci_event(hci, EVT_DISCONN_COMPLETE,
962 &params, EVT_DISCONN_COMPLETE_SIZE);
963 }
964
965 static int bt_hci_name_req(struct bt_hci_s *hci, bdaddr_t *bdaddr)
966 {
967 struct bt_device_s *slave;
968 evt_remote_name_req_complete params;
969
970 for (slave = hci->device.net->slave; slave; slave = slave->next)
971 if (slave->page_scan && !bacmp(&slave->bd_addr, bdaddr))
972 break;
973 if (!slave)
974 return -ENODEV;
975
976 bt_hci_event_status(hci, HCI_SUCCESS);
977
978 params.status = HCI_SUCCESS;
979 bacpy(&params.bdaddr, &slave->bd_addr);
980 pstrcpy(params.name, sizeof(params.name), slave->lmp_name ?: "");
981 bt_hci_event(hci, EVT_REMOTE_NAME_REQ_COMPLETE,
982 &params, EVT_REMOTE_NAME_REQ_COMPLETE_SIZE);
983
984 return 0;
985 }
986
987 static int bt_hci_features_req(struct bt_hci_s *hci, uint16_t handle)
988 {
989 struct bt_device_s *slave;
990 evt_read_remote_features_complete params;
991
992 if (bt_hci_handle_bad(hci, handle))
993 return -ENODEV;
994
995 slave = bt_hci_remote_dev(hci, handle);
996
997 bt_hci_event_status(hci, HCI_SUCCESS);
998
999 params.status = HCI_SUCCESS;
1000 params.handle = HNDL(handle);
1001 params.features[0] = (slave->lmp_caps >> 0) & 0xff;
1002 params.features[1] = (slave->lmp_caps >> 8) & 0xff;
1003 params.features[2] = (slave->lmp_caps >> 16) & 0xff;
1004 params.features[3] = (slave->lmp_caps >> 24) & 0xff;
1005 params.features[4] = (slave->lmp_caps >> 32) & 0xff;
1006 params.features[5] = (slave->lmp_caps >> 40) & 0xff;
1007 params.features[6] = (slave->lmp_caps >> 48) & 0xff;
1008 params.features[7] = (slave->lmp_caps >> 56) & 0xff;
1009 bt_hci_event(hci, EVT_READ_REMOTE_FEATURES_COMPLETE,
1010 &params, EVT_READ_REMOTE_FEATURES_COMPLETE_SIZE);
1011
1012 return 0;
1013 }
1014
1015 static int bt_hci_version_req(struct bt_hci_s *hci, uint16_t handle)
1016 {
1017 evt_read_remote_version_complete params;
1018
1019 if (bt_hci_handle_bad(hci, handle))
1020 return -ENODEV;
1021
1022 bt_hci_remote_dev(hci, handle);
1023
1024 bt_hci_event_status(hci, HCI_SUCCESS);
1025
1026 params.status = HCI_SUCCESS;
1027 params.handle = HNDL(handle);
1028 params.lmp_ver = 0x03;
1029 params.manufacturer = cpu_to_le16(0xa000);
1030 params.lmp_subver = cpu_to_le16(0xa607);
1031 bt_hci_event(hci, EVT_READ_REMOTE_VERSION_COMPLETE,
1032 &params, EVT_READ_REMOTE_VERSION_COMPLETE_SIZE);
1033
1034 return 0;
1035 }
1036
1037 static int bt_hci_clkoffset_req(struct bt_hci_s *hci, uint16_t handle)
1038 {
1039 struct bt_device_s *slave;
1040 evt_read_clock_offset_complete params;
1041
1042 if (bt_hci_handle_bad(hci, handle))
1043 return -ENODEV;
1044
1045 slave = bt_hci_remote_dev(hci, handle);
1046
1047 bt_hci_event_status(hci, HCI_SUCCESS);
1048
1049 params.status = HCI_SUCCESS;
1050 params.handle = HNDL(handle);
1051 /* TODO: return the clkoff *differenece* */
1052 params.clock_offset = slave->clkoff; /* Note: no swapping */
1053 bt_hci_event(hci, EVT_READ_CLOCK_OFFSET_COMPLETE,
1054 &params, EVT_READ_CLOCK_OFFSET_COMPLETE_SIZE);
1055
1056 return 0;
1057 }
1058
1059 static void bt_hci_event_mode(struct bt_hci_s *hci, struct bt_link_s *link,
1060 uint16_t handle)
1061 {
1062 evt_mode_change params = {
1063 .status = HCI_SUCCESS,
1064 .handle = HNDL(handle),
1065 .mode = link->acl_mode,
1066 .interval = cpu_to_le16(link->acl_interval),
1067 };
1068
1069 bt_hci_event(hci, EVT_MODE_CHANGE, &params, EVT_MODE_CHANGE_SIZE);
1070 }
1071
1072 static void bt_hci_lmp_mode_change_master(struct bt_hci_s *hci,
1073 struct bt_link_s *link, int mode, uint16_t interval)
1074 {
1075 link->acl_mode = mode;
1076 link->acl_interval = interval;
1077
1078 bt_hci_event_mode(hci, link, link->handle);
1079
1080 link->slave->lmp_mode_change(link);
1081 }
1082
1083 static void bt_hci_lmp_mode_change_slave(struct bt_link_s *btlink)
1084 {
1085 struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
1086 struct bt_hci_s *hci = hci_from_device(btlink->slave);
1087
1088 bt_hci_event_mode(hci, btlink, link->handle);
1089 }
1090
1091 static int bt_hci_mode_change(struct bt_hci_s *hci, uint16_t handle,
1092 int interval, int mode)
1093 {
1094 struct bt_hci_master_link_s *link;
1095
1096 if (bt_hci_handle_bad(hci, handle) || !bt_hci_role_master(hci, handle))
1097 return -ENODEV;
1098
1099 link = &hci->lm.handle[handle & ~HCI_HANDLE_OFFSET];
1100 if (link->link->acl_mode != acl_active) {
1101 bt_hci_event_status(hci, HCI_COMMAND_DISALLOWED);
1102 return 0;
1103 }
1104
1105 bt_hci_event_status(hci, HCI_SUCCESS);
1106
1107 timer_mod(link->acl_mode_timer, qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) +
1108 ((uint64_t)interval * 625) * 1000);
1109 bt_hci_lmp_mode_change_master(hci, link->link, mode, interval);
1110
1111 return 0;
1112 }
1113
1114 static int bt_hci_mode_cancel(struct bt_hci_s *hci, uint16_t handle, int mode)
1115 {
1116 struct bt_hci_master_link_s *link;
1117
1118 if (bt_hci_handle_bad(hci, handle) || !bt_hci_role_master(hci, handle))
1119 return -ENODEV;
1120
1121 link = &hci->lm.handle[handle & ~HCI_HANDLE_OFFSET];
1122 if (link->link->acl_mode != mode) {
1123 bt_hci_event_status(hci, HCI_COMMAND_DISALLOWED);
1124
1125 return 0;
1126 }
1127
1128 bt_hci_event_status(hci, HCI_SUCCESS);
1129
1130 timer_del(link->acl_mode_timer);
1131 bt_hci_lmp_mode_change_master(hci, link->link, acl_active, 0);
1132
1133 return 0;
1134 }
1135
1136 static void bt_hci_mode_tick(void *opaque)
1137 {
1138 struct bt_link_s *link = opaque;
1139 struct bt_hci_s *hci = hci_from_device(link->host);
1140
1141 bt_hci_lmp_mode_change_master(hci, link, acl_active, 0);
1142 }
1143
1144 static void bt_hci_reset(struct bt_hci_s *hci)
1145 {
1146 hci->acl_len = 0;
1147 hci->last_cmd = 0;
1148 hci->lm.connecting = 0;
1149
1150 hci->event_mask[0] = 0xff;
1151 hci->event_mask[1] = 0xff;
1152 hci->event_mask[2] = 0xff;
1153 hci->event_mask[3] = 0xff;
1154 hci->event_mask[4] = 0xff;
1155 hci->event_mask[5] = 0x1f;
1156 hci->event_mask[6] = 0x00;
1157 hci->event_mask[7] = 0x00;
1158 hci->device.inquiry_scan = 0;
1159 hci->device.page_scan = 0;
1160 g_free((void *) hci->device.lmp_name);
1161 hci->device.lmp_name = NULL;
1162 hci->device.class[0] = 0x00;
1163 hci->device.class[1] = 0x00;
1164 hci->device.class[2] = 0x00;
1165 hci->voice_setting = 0x0000;
1166 hci->conn_accept_tout = 0x1f40;
1167 hci->lm.inquiry_mode = 0x00;
1168
1169 hci->psb_handle = 0x000;
1170 hci->asb_handle = 0x000;
1171
1172 /* XXX: timer_del(sl->acl_mode_timer); for all links */
1173 timer_del(hci->lm.inquiry_done);
1174 timer_del(hci->lm.inquiry_next);
1175 timer_del(hci->conn_accept_timer);
1176 }
1177
1178 static void bt_hci_read_local_version_rp(struct bt_hci_s *hci)
1179 {
1180 read_local_version_rp lv = {
1181 .status = HCI_SUCCESS,
1182 .hci_ver = 0x03,
1183 .hci_rev = cpu_to_le16(0xa607),
1184 .lmp_ver = 0x03,
1185 .manufacturer = cpu_to_le16(0xa000),
1186 .lmp_subver = cpu_to_le16(0xa607),
1187 };
1188
1189 bt_hci_event_complete(hci, &lv, READ_LOCAL_VERSION_RP_SIZE);
1190 }
1191
1192 static void bt_hci_read_local_commands_rp(struct bt_hci_s *hci)
1193 {
1194 read_local_commands_rp lc = {
1195 .status = HCI_SUCCESS,
1196 .commands = {
1197 /* Keep updated! */
1198 /* Also, keep in sync with hci->device.lmp_caps in bt_new_hci */
1199 0xbf, 0x80, 0xf9, 0x03, 0xb2, 0xc0, 0x03, 0xc3,
1200 0x00, 0x0f, 0x80, 0x00, 0xc0, 0x00, 0xe8, 0x13,
1201 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1202 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1203 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1204 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1205 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1206 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
1207 },
1208 };
1209
1210 bt_hci_event_complete(hci, &lc, READ_LOCAL_COMMANDS_RP_SIZE);
1211 }
1212
1213 static void bt_hci_read_local_features_rp(struct bt_hci_s *hci)
1214 {
1215 read_local_features_rp lf = {
1216 .status = HCI_SUCCESS,
1217 .features = {
1218 (hci->device.lmp_caps >> 0) & 0xff,
1219 (hci->device.lmp_caps >> 8) & 0xff,
1220 (hci->device.lmp_caps >> 16) & 0xff,
1221 (hci->device.lmp_caps >> 24) & 0xff,
1222 (hci->device.lmp_caps >> 32) & 0xff,
1223 (hci->device.lmp_caps >> 40) & 0xff,
1224 (hci->device.lmp_caps >> 48) & 0xff,
1225 (hci->device.lmp_caps >> 56) & 0xff,
1226 },
1227 };
1228
1229 bt_hci_event_complete(hci, &lf, READ_LOCAL_FEATURES_RP_SIZE);
1230 }
1231
1232 static void bt_hci_read_local_ext_features_rp(struct bt_hci_s *hci, int page)
1233 {
1234 read_local_ext_features_rp lef = {
1235 .status = HCI_SUCCESS,
1236 .page_num = page,
1237 .max_page_num = 0x00,
1238 .features = {
1239 /* Keep updated! */
1240 0x5f, 0x35, 0x85, 0x7e, 0x9b, 0x19, 0x00, 0x80,
1241 },
1242 };
1243 if (page)
1244 memset(lef.features, 0, sizeof(lef.features));
1245
1246 bt_hci_event_complete(hci, &lef, READ_LOCAL_EXT_FEATURES_RP_SIZE);
1247 }
1248
1249 static void bt_hci_read_buffer_size_rp(struct bt_hci_s *hci)
1250 {
1251 read_buffer_size_rp bs = {
1252 /* This can be made configurable, for one standard USB dongle HCI
1253 * the four values are cpu_to_le16(0x0180), 0x40,
1254 * cpu_to_le16(0x0008), cpu_to_le16(0x0008). */
1255 .status = HCI_SUCCESS,
1256 .acl_mtu = cpu_to_le16(0x0200),
1257 .sco_mtu = 0,
1258 .acl_max_pkt = cpu_to_le16(0x0001),
1259 .sco_max_pkt = cpu_to_le16(0x0000),
1260 };
1261
1262 bt_hci_event_complete(hci, &bs, READ_BUFFER_SIZE_RP_SIZE);
1263 }
1264
1265 /* Deprecated in V2.0 (page 661) */
1266 static void bt_hci_read_country_code_rp(struct bt_hci_s *hci)
1267 {
1268 read_country_code_rp cc ={
1269 .status = HCI_SUCCESS,
1270 .country_code = 0x00, /* North America & Europe^1 and Japan */
1271 };
1272
1273 bt_hci_event_complete(hci, &cc, READ_COUNTRY_CODE_RP_SIZE);
1274
1275 /* ^1. Except France, sorry */
1276 }
1277
1278 static void bt_hci_read_bd_addr_rp(struct bt_hci_s *hci)
1279 {
1280 read_bd_addr_rp ba = {
1281 .status = HCI_SUCCESS,
1282 .bdaddr = BAINIT(&hci->device.bd_addr),
1283 };
1284
1285 bt_hci_event_complete(hci, &ba, READ_BD_ADDR_RP_SIZE);
1286 }
1287
1288 static int bt_hci_link_quality_rp(struct bt_hci_s *hci, uint16_t handle)
1289 {
1290 read_link_quality_rp lq = {
1291 .status = HCI_SUCCESS,
1292 .handle = HNDL(handle),
1293 .link_quality = 0xff,
1294 };
1295
1296 if (bt_hci_handle_bad(hci, handle))
1297 lq.status = HCI_NO_CONNECTION;
1298
1299 bt_hci_event_complete(hci, &lq, READ_LINK_QUALITY_RP_SIZE);
1300 return 0;
1301 }
1302
1303 /* Generate a Command Complete event with only the Status parameter */
1304 static inline void bt_hci_event_complete_status(struct bt_hci_s *hci,
1305 uint8_t status)
1306 {
1307 bt_hci_event_complete(hci, &status, 1);
1308 }
1309
1310 static inline void bt_hci_event_complete_conn_cancel(struct bt_hci_s *hci,
1311 uint8_t status, bdaddr_t *bd_addr)
1312 {
1313 create_conn_cancel_rp params = {
1314 .status = status,
1315 .bdaddr = BAINIT(bd_addr),
1316 };
1317
1318 bt_hci_event_complete(hci, &params, CREATE_CONN_CANCEL_RP_SIZE);
1319 }
1320
1321 static inline void bt_hci_event_auth_complete(struct bt_hci_s *hci,
1322 uint16_t handle)
1323 {
1324 evt_auth_complete params = {
1325 .status = HCI_SUCCESS,
1326 .handle = HNDL(handle),
1327 };
1328
1329 bt_hci_event(hci, EVT_AUTH_COMPLETE, &params, EVT_AUTH_COMPLETE_SIZE);
1330 }
1331
1332 static inline void bt_hci_event_encrypt_change(struct bt_hci_s *hci,
1333 uint16_t handle, uint8_t mode)
1334 {
1335 evt_encrypt_change params = {
1336 .status = HCI_SUCCESS,
1337 .handle = HNDL(handle),
1338 .encrypt = mode,
1339 };
1340
1341 bt_hci_event(hci, EVT_ENCRYPT_CHANGE, &params, EVT_ENCRYPT_CHANGE_SIZE);
1342 }
1343
1344 static inline void bt_hci_event_complete_name_cancel(struct bt_hci_s *hci,
1345 bdaddr_t *bd_addr)
1346 {
1347 remote_name_req_cancel_rp params = {
1348 .status = HCI_INVALID_PARAMETERS,
1349 .bdaddr = BAINIT(bd_addr),
1350 };
1351
1352 bt_hci_event_complete(hci, &params, REMOTE_NAME_REQ_CANCEL_RP_SIZE);
1353 }
1354
1355 static inline void bt_hci_event_read_remote_ext_features(struct bt_hci_s *hci,
1356 uint16_t handle)
1357 {
1358 evt_read_remote_ext_features_complete params = {
1359 .status = HCI_UNSUPPORTED_FEATURE,
1360 .handle = HNDL(handle),
1361 /* Rest uninitialised */
1362 };
1363
1364 bt_hci_event(hci, EVT_READ_REMOTE_EXT_FEATURES_COMPLETE,
1365 &params, EVT_READ_REMOTE_EXT_FEATURES_COMPLETE_SIZE);
1366 }
1367
1368 static inline void bt_hci_event_complete_lmp_handle(struct bt_hci_s *hci,
1369 uint16_t handle)
1370 {
1371 read_lmp_handle_rp params = {
1372 .status = HCI_NO_CONNECTION,
1373 .handle = HNDL(handle),
1374 .reserved = 0,
1375 /* Rest uninitialised */
1376 };
1377
1378 bt_hci_event_complete(hci, &params, READ_LMP_HANDLE_RP_SIZE);
1379 }
1380
1381 static inline void bt_hci_event_complete_role_discovery(struct bt_hci_s *hci,
1382 int status, uint16_t handle, int master)
1383 {
1384 role_discovery_rp params = {
1385 .status = status,
1386 .handle = HNDL(handle),
1387 .role = master ? 0x00 : 0x01,
1388 };
1389
1390 bt_hci_event_complete(hci, &params, ROLE_DISCOVERY_RP_SIZE);
1391 }
1392
1393 static inline void bt_hci_event_complete_flush(struct bt_hci_s *hci,
1394 int status, uint16_t handle)
1395 {
1396 flush_rp params = {
1397 .status = status,
1398 .handle = HNDL(handle),
1399 };
1400
1401 bt_hci_event_complete(hci, &params, FLUSH_RP_SIZE);
1402 }
1403
1404 static inline void bt_hci_event_complete_read_local_name(struct bt_hci_s *hci)
1405 {
1406 read_local_name_rp params;
1407 params.status = HCI_SUCCESS;
1408 memset(params.name, 0, sizeof(params.name));
1409 if (hci->device.lmp_name)
1410 pstrcpy(params.name, sizeof(params.name), hci->device.lmp_name);
1411
1412 bt_hci_event_complete(hci, &params, READ_LOCAL_NAME_RP_SIZE);
1413 }
1414
1415 static inline void bt_hci_event_complete_read_conn_accept_timeout(
1416 struct bt_hci_s *hci)
1417 {
1418 read_conn_accept_timeout_rp params = {
1419 .status = HCI_SUCCESS,
1420 .timeout = cpu_to_le16(hci->conn_accept_tout),
1421 };
1422
1423 bt_hci_event_complete(hci, &params, READ_CONN_ACCEPT_TIMEOUT_RP_SIZE);
1424 }
1425
1426 static inline void bt_hci_event_complete_read_scan_enable(struct bt_hci_s *hci)
1427 {
1428 read_scan_enable_rp params = {
1429 .status = HCI_SUCCESS,
1430 .enable =
1431 (hci->device.inquiry_scan ? SCAN_INQUIRY : 0) |
1432 (hci->device.page_scan ? SCAN_PAGE : 0),
1433 };
1434
1435 bt_hci_event_complete(hci, &params, READ_SCAN_ENABLE_RP_SIZE);
1436 }
1437
1438 static inline void bt_hci_event_complete_read_local_class(struct bt_hci_s *hci)
1439 {
1440 read_class_of_dev_rp params;
1441
1442 params.status = HCI_SUCCESS;
1443 memcpy(params.dev_class, hci->device.class, sizeof(params.dev_class));
1444
1445 bt_hci_event_complete(hci, &params, READ_CLASS_OF_DEV_RP_SIZE);
1446 }
1447
1448 static inline void bt_hci_event_complete_voice_setting(struct bt_hci_s *hci)
1449 {
1450 read_voice_setting_rp params = {
1451 .status = HCI_SUCCESS,
1452 .voice_setting = hci->voice_setting, /* Note: no swapping */
1453 };
1454
1455 bt_hci_event_complete(hci, &params, READ_VOICE_SETTING_RP_SIZE);
1456 }
1457
1458 static inline void bt_hci_event_complete_read_inquiry_mode(
1459 struct bt_hci_s *hci)
1460 {
1461 read_inquiry_mode_rp params = {
1462 .status = HCI_SUCCESS,
1463 .mode = hci->lm.inquiry_mode,
1464 };
1465
1466 bt_hci_event_complete(hci, &params, READ_INQUIRY_MODE_RP_SIZE);
1467 }
1468
1469 static inline void bt_hci_event_num_comp_pkts(struct bt_hci_s *hci,
1470 uint16_t handle, int packets)
1471 {
1472 uint16_t buf[EVT_NUM_COMP_PKTS_SIZE(1) / 2 + 1];
1473 evt_num_comp_pkts *params = (void *) ((uint8_t *) buf + 1);
1474
1475 params->num_hndl = 1;
1476 params->connection->handle = HNDL(handle);
1477 params->connection->num_packets = cpu_to_le16(packets);
1478
1479 bt_hci_event(hci, EVT_NUM_COMP_PKTS, params, EVT_NUM_COMP_PKTS_SIZE(1));
1480 }
1481
1482 static void bt_submit_hci(struct HCIInfo *info,
1483 const uint8_t *data, int length)
1484 {
1485 struct bt_hci_s *hci = hci_from_info(info);
1486 uint16_t cmd;
1487 int paramlen, i;
1488
1489 if (length < HCI_COMMAND_HDR_SIZE)
1490 goto short_hci;
1491
1492 memcpy(&hci->last_cmd, data, 2);
1493
1494 cmd = (data[1] << 8) | data[0];
1495 paramlen = data[2];
1496 if (cmd_opcode_ogf(cmd) == 0 || cmd_opcode_ocf(cmd) == 0) /* NOP */
1497 return;
1498
1499 data += HCI_COMMAND_HDR_SIZE;
1500 length -= HCI_COMMAND_HDR_SIZE;
1501
1502 if (paramlen > length)
1503 return;
1504
1505 #define PARAM(cmd, param) (((cmd##_cp *) data)->param)
1506 #define PARAM16(cmd, param) le16_to_cpup(&PARAM(cmd, param))
1507 #define PARAMHANDLE(cmd) HNDL(PARAM(cmd, handle))
1508 #define LENGTH_CHECK(cmd) if (length < sizeof(cmd##_cp)) goto short_hci
1509 /* Note: the supported commands bitmask in bt_hci_read_local_commands_rp
1510 * needs to be updated every time a command is implemented here! */
1511 switch (cmd) {
1512 case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY):
1513 LENGTH_CHECK(inquiry);
1514
1515 if (PARAM(inquiry, length) < 1) {
1516 bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
1517 break;
1518 }
1519
1520 hci->lm.inquire = 1;
1521 hci->lm.periodic = 0;
1522 hci->lm.responses_left = PARAM(inquiry, num_rsp) ?: INT_MAX;
1523 hci->lm.responses = 0;
1524 bt_hci_event_status(hci, HCI_SUCCESS);
1525 bt_hci_inquiry_start(hci, PARAM(inquiry, length));
1526 break;
1527
1528 case cmd_opcode_pack(OGF_LINK_CTL, OCF_INQUIRY_CANCEL):
1529 if (!hci->lm.inquire || hci->lm.periodic) {
1530 fprintf(stderr, "%s: Inquiry Cancel should only be issued after "
1531 "the Inquiry command has been issued, a Command "
1532 "Status event has been received for the Inquiry "
1533 "command, and before the Inquiry Complete event "
1534 "occurs", __FUNCTION__);
1535 bt_hci_event_complete_status(hci, HCI_COMMAND_DISALLOWED);
1536 break;
1537 }
1538
1539 hci->lm.inquire = 0;
1540 timer_del(hci->lm.inquiry_done);
1541 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1542 break;
1543
1544 case cmd_opcode_pack(OGF_LINK_CTL, OCF_PERIODIC_INQUIRY):
1545 LENGTH_CHECK(periodic_inquiry);
1546
1547 if (!(PARAM(periodic_inquiry, length) <
1548 PARAM16(periodic_inquiry, min_period) &&
1549 PARAM16(periodic_inquiry, min_period) <
1550 PARAM16(periodic_inquiry, max_period)) ||
1551 PARAM(periodic_inquiry, length) < 1 ||
1552 PARAM16(periodic_inquiry, min_period) < 2 ||
1553 PARAM16(periodic_inquiry, max_period) < 3) {
1554 bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
1555 break;
1556 }
1557
1558 hci->lm.inquire = 1;
1559 hci->lm.periodic = 1;
1560 hci->lm.responses_left = PARAM(periodic_inquiry, num_rsp);
1561 hci->lm.responses = 0;
1562 hci->lm.inquiry_period = PARAM16(periodic_inquiry, max_period);
1563 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1564 bt_hci_inquiry_start(hci, PARAM(periodic_inquiry, length));
1565 break;
1566
1567 case cmd_opcode_pack(OGF_LINK_CTL, OCF_EXIT_PERIODIC_INQUIRY):
1568 if (!hci->lm.inquire || !hci->lm.periodic) {
1569 fprintf(stderr, "%s: Inquiry Cancel should only be issued after "
1570 "the Inquiry command has been issued, a Command "
1571 "Status event has been received for the Inquiry "
1572 "command, and before the Inquiry Complete event "
1573 "occurs", __FUNCTION__);
1574 bt_hci_event_complete_status(hci, HCI_COMMAND_DISALLOWED);
1575 break;
1576 }
1577 hci->lm.inquire = 0;
1578 timer_del(hci->lm.inquiry_done);
1579 timer_del(hci->lm.inquiry_next);
1580 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1581 break;
1582
1583 case cmd_opcode_pack(OGF_LINK_CTL, OCF_CREATE_CONN):
1584 LENGTH_CHECK(create_conn);
1585
1586 if (hci->lm.connecting >= HCI_HANDLES_MAX) {
1587 bt_hci_event_status(hci, HCI_REJECTED_LIMITED_RESOURCES);
1588 break;
1589 }
1590 bt_hci_event_status(hci, HCI_SUCCESS);
1591
1592 if (bt_hci_connect(hci, &PARAM(create_conn, bdaddr)))
1593 bt_hci_connection_reject_event(hci, &PARAM(create_conn, bdaddr));
1594 break;
1595
1596 case cmd_opcode_pack(OGF_LINK_CTL, OCF_DISCONNECT):
1597 LENGTH_CHECK(disconnect);
1598
1599 if (bt_hci_handle_bad(hci, PARAMHANDLE(disconnect))) {
1600 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1601 break;
1602 }
1603
1604 bt_hci_event_status(hci, HCI_SUCCESS);
1605 bt_hci_disconnect(hci, PARAMHANDLE(disconnect),
1606 PARAM(disconnect, reason));
1607 break;
1608
1609 case cmd_opcode_pack(OGF_LINK_CTL, OCF_CREATE_CONN_CANCEL):
1610 LENGTH_CHECK(create_conn_cancel);
1611
1612 if (bt_hci_lmp_connection_ready(hci,
1613 &PARAM(create_conn_cancel, bdaddr))) {
1614 for (i = 0; i < HCI_HANDLES_MAX; i ++)
1615 if (bt_hci_role_master(hci, i) && hci->lm.handle[i].link &&
1616 !bacmp(&hci->lm.handle[i].link->slave->bd_addr,
1617 &PARAM(create_conn_cancel, bdaddr)))
1618 break;
1619
1620 bt_hci_event_complete_conn_cancel(hci, i < HCI_HANDLES_MAX ?
1621 HCI_ACL_CONNECTION_EXISTS : HCI_NO_CONNECTION,
1622 &PARAM(create_conn_cancel, bdaddr));
1623 } else
1624 bt_hci_event_complete_conn_cancel(hci, HCI_SUCCESS,
1625 &PARAM(create_conn_cancel, bdaddr));
1626 break;
1627
1628 case cmd_opcode_pack(OGF_LINK_CTL, OCF_ACCEPT_CONN_REQ):
1629 LENGTH_CHECK(accept_conn_req);
1630
1631 if (!hci->conn_req_host ||
1632 bacmp(&PARAM(accept_conn_req, bdaddr),
1633 &hci->conn_req_host->bd_addr)) {
1634 bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
1635 break;
1636 }
1637
1638 bt_hci_event_status(hci, HCI_SUCCESS);
1639 bt_hci_connection_accept(hci, hci->conn_req_host);
1640 hci->conn_req_host = NULL;
1641 break;
1642
1643 case cmd_opcode_pack(OGF_LINK_CTL, OCF_REJECT_CONN_REQ):
1644 LENGTH_CHECK(reject_conn_req);
1645
1646 if (!hci->conn_req_host ||
1647 bacmp(&PARAM(reject_conn_req, bdaddr),
1648 &hci->conn_req_host->bd_addr)) {
1649 bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
1650 break;
1651 }
1652
1653 bt_hci_event_status(hci, HCI_SUCCESS);
1654 bt_hci_connection_reject(hci, hci->conn_req_host,
1655 PARAM(reject_conn_req, reason));
1656 bt_hci_connection_reject_event(hci, &hci->conn_req_host->bd_addr);
1657 hci->conn_req_host = NULL;
1658 break;
1659
1660 case cmd_opcode_pack(OGF_LINK_CTL, OCF_AUTH_REQUESTED):
1661 LENGTH_CHECK(auth_requested);
1662
1663 if (bt_hci_handle_bad(hci, PARAMHANDLE(auth_requested)))
1664 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1665 else {
1666 bt_hci_event_status(hci, HCI_SUCCESS);
1667 bt_hci_event_auth_complete(hci, PARAMHANDLE(auth_requested));
1668 }
1669 break;
1670
1671 case cmd_opcode_pack(OGF_LINK_CTL, OCF_SET_CONN_ENCRYPT):
1672 LENGTH_CHECK(set_conn_encrypt);
1673
1674 if (bt_hci_handle_bad(hci, PARAMHANDLE(set_conn_encrypt)))
1675 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1676 else {
1677 bt_hci_event_status(hci, HCI_SUCCESS);
1678 bt_hci_event_encrypt_change(hci,
1679 PARAMHANDLE(set_conn_encrypt),
1680 PARAM(set_conn_encrypt, encrypt));
1681 }
1682 break;
1683
1684 case cmd_opcode_pack(OGF_LINK_CTL, OCF_REMOTE_NAME_REQ):
1685 LENGTH_CHECK(remote_name_req);
1686
1687 if (bt_hci_name_req(hci, &PARAM(remote_name_req, bdaddr)))
1688 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1689 break;
1690
1691 case cmd_opcode_pack(OGF_LINK_CTL, OCF_REMOTE_NAME_REQ_CANCEL):
1692 LENGTH_CHECK(remote_name_req_cancel);
1693
1694 bt_hci_event_complete_name_cancel(hci,
1695 &PARAM(remote_name_req_cancel, bdaddr));
1696 break;
1697
1698 case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_FEATURES):
1699 LENGTH_CHECK(read_remote_features);
1700
1701 if (bt_hci_features_req(hci, PARAMHANDLE(read_remote_features)))
1702 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1703 break;
1704
1705 case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_EXT_FEATURES):
1706 LENGTH_CHECK(read_remote_ext_features);
1707
1708 if (bt_hci_handle_bad(hci, PARAMHANDLE(read_remote_ext_features)))
1709 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1710 else {
1711 bt_hci_event_status(hci, HCI_SUCCESS);
1712 bt_hci_event_read_remote_ext_features(hci,
1713 PARAMHANDLE(read_remote_ext_features));
1714 }
1715 break;
1716
1717 case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_REMOTE_VERSION):
1718 LENGTH_CHECK(read_remote_version);
1719
1720 if (bt_hci_version_req(hci, PARAMHANDLE(read_remote_version)))
1721 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1722 break;
1723
1724 case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_CLOCK_OFFSET):
1725 LENGTH_CHECK(read_clock_offset);
1726
1727 if (bt_hci_clkoffset_req(hci, PARAMHANDLE(read_clock_offset)))
1728 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1729 break;
1730
1731 case cmd_opcode_pack(OGF_LINK_CTL, OCF_READ_LMP_HANDLE):
1732 LENGTH_CHECK(read_lmp_handle);
1733
1734 /* TODO: */
1735 bt_hci_event_complete_lmp_handle(hci, PARAMHANDLE(read_lmp_handle));
1736 break;
1737
1738 case cmd_opcode_pack(OGF_LINK_POLICY, OCF_HOLD_MODE):
1739 LENGTH_CHECK(hold_mode);
1740
1741 if (PARAM16(hold_mode, min_interval) >
1742 PARAM16(hold_mode, max_interval) ||
1743 PARAM16(hold_mode, min_interval) < 0x0002 ||
1744 PARAM16(hold_mode, max_interval) > 0xff00 ||
1745 (PARAM16(hold_mode, min_interval) & 1) ||
1746 (PARAM16(hold_mode, max_interval) & 1)) {
1747 bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
1748 break;
1749 }
1750
1751 if (bt_hci_mode_change(hci, PARAMHANDLE(hold_mode),
1752 PARAM16(hold_mode, max_interval),
1753 acl_hold))
1754 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1755 break;
1756
1757 case cmd_opcode_pack(OGF_LINK_POLICY, OCF_PARK_MODE):
1758 LENGTH_CHECK(park_mode);
1759
1760 if (PARAM16(park_mode, min_interval) >
1761 PARAM16(park_mode, max_interval) ||
1762 PARAM16(park_mode, min_interval) < 0x000e ||
1763 (PARAM16(park_mode, min_interval) & 1) ||
1764 (PARAM16(park_mode, max_interval) & 1)) {
1765 bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
1766 break;
1767 }
1768
1769 if (bt_hci_mode_change(hci, PARAMHANDLE(park_mode),
1770 PARAM16(park_mode, max_interval),
1771 acl_parked))
1772 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1773 break;
1774
1775 case cmd_opcode_pack(OGF_LINK_POLICY, OCF_EXIT_PARK_MODE):
1776 LENGTH_CHECK(exit_park_mode);
1777
1778 if (bt_hci_mode_cancel(hci, PARAMHANDLE(exit_park_mode),
1779 acl_parked))
1780 bt_hci_event_status(hci, HCI_NO_CONNECTION);
1781 break;
1782
1783 case cmd_opcode_pack(OGF_LINK_POLICY, OCF_ROLE_DISCOVERY):
1784 LENGTH_CHECK(role_discovery);
1785
1786 if (bt_hci_handle_bad(hci, PARAMHANDLE(role_discovery)))
1787 bt_hci_event_complete_role_discovery(hci,
1788 HCI_NO_CONNECTION, PARAMHANDLE(role_discovery), 0);
1789 else
1790 bt_hci_event_complete_role_discovery(hci,
1791 HCI_SUCCESS, PARAMHANDLE(role_discovery),
1792 bt_hci_role_master(hci,
1793 PARAMHANDLE(role_discovery)));
1794 break;
1795
1796 case cmd_opcode_pack(OGF_HOST_CTL, OCF_SET_EVENT_MASK):
1797 LENGTH_CHECK(set_event_mask);
1798
1799 memcpy(hci->event_mask, PARAM(set_event_mask, mask), 8);
1800 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1801 break;
1802
1803 case cmd_opcode_pack(OGF_HOST_CTL, OCF_RESET):
1804 bt_hci_reset(hci);
1805 bt_hci_event_status(hci, HCI_SUCCESS);
1806 break;
1807
1808 case cmd_opcode_pack(OGF_HOST_CTL, OCF_SET_EVENT_FLT):
1809 if (length >= 1 && PARAM(set_event_flt, flt_type) == FLT_CLEAR_ALL)
1810 /* No length check */;
1811 else
1812 LENGTH_CHECK(set_event_flt);
1813
1814 /* Filters are not implemented */
1815 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1816 break;
1817
1818 case cmd_opcode_pack(OGF_HOST_CTL, OCF_FLUSH):
1819 LENGTH_CHECK(flush);
1820
1821 if (bt_hci_handle_bad(hci, PARAMHANDLE(flush)))
1822 bt_hci_event_complete_flush(hci,
1823 HCI_NO_CONNECTION, PARAMHANDLE(flush));
1824 else {
1825 /* TODO: ordering? */
1826 bt_hci_event(hci, EVT_FLUSH_OCCURRED,
1827 &PARAM(flush, handle),
1828 EVT_FLUSH_OCCURRED_SIZE);
1829 bt_hci_event_complete_flush(hci,
1830 HCI_SUCCESS, PARAMHANDLE(flush));
1831 }
1832 break;
1833
1834 case cmd_opcode_pack(OGF_HOST_CTL, OCF_CHANGE_LOCAL_NAME):
1835 LENGTH_CHECK(change_local_name);
1836
1837 g_free((void *) hci->device.lmp_name);
1838 hci->device.lmp_name = g_strndup(PARAM(change_local_name, name),
1839 sizeof(PARAM(change_local_name, name)));
1840 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1841 break;
1842
1843 case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_LOCAL_NAME):
1844 bt_hci_event_complete_read_local_name(hci);
1845 break;
1846
1847 case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_CONN_ACCEPT_TIMEOUT):
1848 bt_hci_event_complete_read_conn_accept_timeout(hci);
1849 break;
1850
1851 case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CONN_ACCEPT_TIMEOUT):
1852 /* TODO */
1853 LENGTH_CHECK(write_conn_accept_timeout);
1854
1855 if (PARAM16(write_conn_accept_timeout, timeout) < 0x0001 ||
1856 PARAM16(write_conn_accept_timeout, timeout) > 0xb540) {
1857 bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
1858 break;
1859 }
1860
1861 hci->conn_accept_tout = PARAM16(write_conn_accept_timeout, timeout);
1862 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1863 break;
1864
1865 case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_SCAN_ENABLE):
1866 bt_hci_event_complete_read_scan_enable(hci);
1867 break;
1868
1869 case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE):
1870 LENGTH_CHECK(write_scan_enable);
1871
1872 /* TODO: check that the remaining bits are all 0 */
1873 hci->device.inquiry_scan =
1874 !!(PARAM(write_scan_enable, scan_enable) & SCAN_INQUIRY);
1875 hci->device.page_scan =
1876 !!(PARAM(write_scan_enable, scan_enable) & SCAN_PAGE);
1877 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1878 break;
1879
1880 case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_CLASS_OF_DEV):
1881 bt_hci_event_complete_read_local_class(hci);
1882 break;
1883
1884 case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_CLASS_OF_DEV):
1885 LENGTH_CHECK(write_class_of_dev);
1886
1887 memcpy(hci->device.class, PARAM(write_class_of_dev, dev_class),
1888 sizeof(PARAM(write_class_of_dev, dev_class)));
1889 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1890 break;
1891
1892 case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_VOICE_SETTING):
1893 bt_hci_event_complete_voice_setting(hci);
1894 break;
1895
1896 case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_VOICE_SETTING):
1897 LENGTH_CHECK(write_voice_setting);
1898
1899 hci->voice_setting = PARAM(write_voice_setting, voice_setting);
1900 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1901 break;
1902
1903 case cmd_opcode_pack(OGF_HOST_CTL, OCF_HOST_NUMBER_OF_COMPLETED_PACKETS):
1904 if (length < data[0] * 2 + 1)
1905 goto short_hci;
1906
1907 for (i = 0; i < data[0]; i ++)
1908 if (bt_hci_handle_bad(hci,
1909 data[i * 2 + 1] | (data[i * 2 + 2] << 8)))
1910 bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
1911 break;
1912
1913 case cmd_opcode_pack(OGF_HOST_CTL, OCF_READ_INQUIRY_MODE):
1914 /* Only if (local_features[3] & 0x40) && (local_commands[12] & 0x40)
1915 * else
1916 * goto unknown_command */
1917 bt_hci_event_complete_read_inquiry_mode(hci);
1918 break;
1919
1920 case cmd_opcode_pack(OGF_HOST_CTL, OCF_WRITE_INQUIRY_MODE):
1921 /* Only if (local_features[3] & 0x40) && (local_commands[12] & 0x80)
1922 * else
1923 * goto unknown_command */
1924 LENGTH_CHECK(write_inquiry_mode);
1925
1926 if (PARAM(write_inquiry_mode, mode) > 0x01) {
1927 bt_hci_event_complete_status(hci, HCI_INVALID_PARAMETERS);
1928 break;
1929 }
1930
1931 hci->lm.inquiry_mode = PARAM(write_inquiry_mode, mode);
1932 bt_hci_event_complete_status(hci, HCI_SUCCESS);
1933 break;
1934
1935 case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_VERSION):
1936 bt_hci_read_local_version_rp(hci);
1937 break;
1938
1939 case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_COMMANDS):
1940 bt_hci_read_local_commands_rp(hci);
1941 break;
1942
1943 case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_FEATURES):
1944 bt_hci_read_local_features_rp(hci);
1945 break;
1946
1947 case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_LOCAL_EXT_FEATURES):
1948 LENGTH_CHECK(read_local_ext_features);
1949
1950 bt_hci_read_local_ext_features_rp(hci,
1951 PARAM(read_local_ext_features, page_num));
1952 break;
1953
1954 case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BUFFER_SIZE):
1955 bt_hci_read_buffer_size_rp(hci);
1956 break;
1957
1958 case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_COUNTRY_CODE):
1959 bt_hci_read_country_code_rp(hci);
1960 break;
1961
1962 case cmd_opcode_pack(OGF_INFO_PARAM, OCF_READ_BD_ADDR):
1963 bt_hci_read_bd_addr_rp(hci);
1964 break;
1965
1966 case cmd_opcode_pack(OGF_STATUS_PARAM, OCF_READ_LINK_QUALITY):
1967 LENGTH_CHECK(read_link_quality);
1968
1969 bt_hci_link_quality_rp(hci, PARAMHANDLE(read_link_quality));
1970 break;
1971
1972 default:
1973 bt_hci_event_status(hci, HCI_UNKNOWN_COMMAND);
1974 break;
1975
1976 short_hci:
1977 fprintf(stderr, "%s: HCI packet too short (%iB)\n",
1978 __FUNCTION__, length);
1979 bt_hci_event_status(hci, HCI_INVALID_PARAMETERS);
1980 break;
1981 }
1982 }
1983
1984 /* We could perform fragmentation here, we can't do "recombination" because
1985 * at this layer the length of the payload is not know ahead, so we only
1986 * know that a packet contained the last fragment of the SDU when the next
1987 * SDU starts. */
1988 static inline void bt_hci_lmp_acl_data(struct bt_hci_s *hci, uint16_t handle,
1989 const uint8_t *data, int start, int len)
1990 {
1991 struct hci_acl_hdr *pkt = (void *) hci->acl_buf;
1992
1993 /* TODO: packet flags */
1994 /* TODO: avoid memcpy'ing */
1995
1996 if (len + HCI_ACL_HDR_SIZE > sizeof(hci->acl_buf)) {
1997 fprintf(stderr, "%s: can't take ACL packets %i bytes long\n",
1998 __FUNCTION__, len);
1999 return;
2000 }
2001 memcpy(hci->acl_buf + HCI_ACL_HDR_SIZE, data, len);
2002
2003 pkt->handle = cpu_to_le16(
2004 acl_handle_pack(handle, start ? ACL_START : ACL_CONT));
2005 pkt->dlen = cpu_to_le16(len);
2006 hci->info.acl_recv(hci->info.opaque,
2007 hci->acl_buf, len + HCI_ACL_HDR_SIZE);
2008 }
2009
2010 static void bt_hci_lmp_acl_data_slave(struct bt_link_s *btlink,
2011 const uint8_t *data, int start, int len)
2012 {
2013 struct bt_hci_link_s *link = (struct bt_hci_link_s *) btlink;
2014
2015 bt_hci_lmp_acl_data(hci_from_device(btlink->slave),
2016 link->handle, data, start, len);
2017 }
2018
2019 static void bt_hci_lmp_acl_data_host(struct bt_link_s *link,
2020 const uint8_t *data, int start, int len)
2021 {
2022 bt_hci_lmp_acl_data(hci_from_device(link->host),
2023 link->handle, data, start, len);
2024 }
2025
2026 static void bt_submit_acl(struct HCIInfo *info,
2027 const uint8_t *data, int length)
2028 {
2029 struct bt_hci_s *hci = hci_from_info(info);
2030 uint16_t handle;
2031 int datalen, flags;
2032 struct bt_link_s *link;
2033
2034 if (length < HCI_ACL_HDR_SIZE) {
2035 fprintf(stderr, "%s: ACL packet too short (%iB)\n",
2036 __FUNCTION__, length);
2037 return;
2038 }
2039
2040 handle = acl_handle((data[1] << 8) | data[0]);
2041 flags = acl_flags((data[1] << 8) | data[0]);
2042 datalen = (data[3] << 8) | data[2];
2043 data += HCI_ACL_HDR_SIZE;
2044 length -= HCI_ACL_HDR_SIZE;
2045
2046 if (bt_hci_handle_bad(hci, handle)) {
2047 fprintf(stderr, "%s: invalid ACL handle %03x\n",
2048 __FUNCTION__, handle);
2049 /* TODO: signal an error */
2050 return;
2051 }
2052 handle &= ~HCI_HANDLE_OFFSET;
2053
2054 if (datalen > length) {
2055 fprintf(stderr, "%s: ACL packet too short (%iB < %iB)\n",
2056 __FUNCTION__, length, datalen);
2057 return;
2058 }
2059
2060 link = hci->lm.handle[handle].link;
2061
2062 if ((flags & ~3) == ACL_ACTIVE_BCAST) {
2063 if (!hci->asb_handle)
2064 hci->asb_handle = handle;
2065 else if (handle != hci->asb_handle) {
2066 fprintf(stderr, "%s: Bad handle %03x in Active Slave Broadcast\n",
2067 __FUNCTION__, handle);
2068 /* TODO: signal an error */
2069 return;
2070 }
2071
2072 /* TODO */
2073 }
2074
2075 if ((flags & ~3) == ACL_PICO_BCAST) {
2076 if (!hci->psb_handle)
2077 hci->psb_handle = handle;
2078 else if (handle != hci->psb_handle) {
2079 fprintf(stderr, "%s: Bad handle %03x in Parked Slave Broadcast\n",
2080 __FUNCTION__, handle);
2081 /* TODO: signal an error */
2082 return;
2083 }
2084
2085 /* TODO */
2086 }
2087
2088 /* TODO: increase counter and send EVT_NUM_COMP_PKTS */
2089 bt_hci_event_num_comp_pkts(hci, handle | HCI_HANDLE_OFFSET, 1);
2090
2091 /* Do this last as it can trigger further events even in this HCI */
2092 hci->lm.handle[handle].lmp_acl_data(link, data,
2093 (flags & 3) == ACL_START, length);
2094 }
2095
2096 static void bt_submit_sco(struct HCIInfo *info,
2097 const uint8_t *data, int length)
2098 {
2099 struct bt_hci_s *hci = hci_from_info(info);
2100 uint16_t handle;
2101 int datalen;
2102
2103 if (length < 3)
2104 return;
2105
2106 handle = acl_handle((data[1] << 8) | data[0]);
2107 datalen = data[2];
2108 length -= 3;
2109
2110 if (bt_hci_handle_bad(hci, handle)) {
2111 fprintf(stderr, "%s: invalid SCO handle %03x\n",
2112 __FUNCTION__, handle);
2113 return;
2114 }
2115
2116 if (datalen > length) {
2117 fprintf(stderr, "%s: SCO packet too short (%iB < %iB)\n",
2118 __FUNCTION__, length, datalen);
2119 return;
2120 }
2121
2122 /* TODO */
2123
2124 /* TODO: increase counter and send EVT_NUM_COMP_PKTS if synchronous
2125 * Flow Control is enabled.
2126 * (See Read/Write_Synchronous_Flow_Control_Enable on page 513 and
2127 * page 514.) */
2128 }
2129
2130 static uint8_t *bt_hci_evt_packet(void *opaque)
2131 {
2132 /* TODO: allocate a packet from upper layer */
2133 struct bt_hci_s *s = opaque;
2134
2135 return s->evt_buf;
2136 }
2137
2138 static void bt_hci_evt_submit(void *opaque, int len)
2139 {
2140 /* TODO: notify upper layer */
2141 struct bt_hci_s *s = opaque;
2142
2143 s->info.evt_recv(s->info.opaque, s->evt_buf, len);
2144 }
2145
2146 static int bt_hci_bdaddr_set(struct HCIInfo *info, const uint8_t *bd_addr)
2147 {
2148 struct bt_hci_s *hci = hci_from_info(info);
2149
2150 bacpy(&hci->device.bd_addr, (const bdaddr_t *) bd_addr);
2151 return 0;
2152 }
2153
2154 static void bt_hci_done(struct HCIInfo *info);
2155 static void bt_hci_destroy(struct bt_device_s *dev)
2156 {
2157 struct bt_hci_s *hci = hci_from_device(dev);
2158
2159 bt_hci_done(&hci->info);
2160 }
2161
2162 struct HCIInfo *bt_new_hci(struct bt_scatternet_s *net)
2163 {
2164 struct bt_hci_s *s = g_malloc0(sizeof(struct bt_hci_s));
2165
2166 s->lm.inquiry_done = timer_new_ns(QEMU_CLOCK_VIRTUAL, bt_hci_inquiry_done, s);
2167 s->lm.inquiry_next = timer_new_ns(QEMU_CLOCK_VIRTUAL, bt_hci_inquiry_next, s);
2168 s->conn_accept_timer =
2169 timer_new_ns(QEMU_CLOCK_VIRTUAL, bt_hci_conn_accept_timeout, s);
2170
2171 s->evt_packet = bt_hci_evt_packet;
2172 s->evt_submit = bt_hci_evt_submit;
2173 s->opaque = s;
2174
2175 bt_device_init(&s->device, net);
2176 s->device.lmp_connection_request = bt_hci_lmp_connection_request;
2177 s->device.lmp_connection_complete = bt_hci_lmp_connection_complete;
2178 s->device.lmp_disconnect_master = bt_hci_lmp_disconnect_host;
2179 s->device.lmp_disconnect_slave = bt_hci_lmp_disconnect_slave;
2180 s->device.lmp_acl_data = bt_hci_lmp_acl_data_slave;
2181 s->device.lmp_acl_resp = bt_hci_lmp_acl_data_host;
2182 s->device.lmp_mode_change = bt_hci_lmp_mode_change_slave;
2183
2184 /* Keep updated! */
2185 /* Also keep in sync with supported commands bitmask in
2186 * bt_hci_read_local_commands_rp */
2187 s->device.lmp_caps = 0x8000199b7e85355fll;
2188
2189 bt_hci_reset(s);
2190
2191 s->info.cmd_send = bt_submit_hci;
2192 s->info.sco_send = bt_submit_sco;
2193 s->info.acl_send = bt_submit_acl;
2194 s->info.bdaddr_set = bt_hci_bdaddr_set;
2195
2196 s->device.handle_destroy = bt_hci_destroy;
2197
2198 error_setg(&s->replay_blocker, QERR_REPLAY_NOT_SUPPORTED, "-bt hci");
2199 replay_add_blocker(s->replay_blocker);
2200
2201 return &s->info;
2202 }
2203
2204 struct HCIInfo *hci_init(const char *str)
2205 {
2206 char *endp;
2207 struct bt_scatternet_s *vlan = 0;
2208
2209 if (!strcmp(str, "null"))
2210 /* null */
2211 return &null_hci;
2212 else if (!strncmp(str, "host", 4) && (str[4] == '\0' || str[4] == ':'))
2213 /* host[:hciN] */
2214 return bt_host_hci(str[4] ? str + 5 : "hci0");
2215 else if (!strncmp(str, "hci", 3)) {
2216 /* hci[,vlan=n] */
2217 if (str[3]) {
2218 if (!strncmp(str + 3, ",vlan=", 6)) {
2219 vlan = qemu_find_bt_vlan(strtol(str + 9, &endp, 0));
2220 if (*endp)
2221 vlan = 0;
2222 }
2223 } else
2224 vlan = qemu_find_bt_vlan(0);
2225 if (vlan)
2226 return bt_new_hci(vlan);
2227 }
2228
2229 fprintf(stderr, "qemu: Unknown bluetooth HCI `%s'.\n", str);
2230
2231 return 0;
2232 }
2233
2234 static void bt_hci_done(struct HCIInfo *info)
2235 {
2236 struct bt_hci_s *hci = hci_from_info(info);
2237 int handle;
2238
2239 bt_device_done(&hci->device);
2240
2241 g_free((void *) hci->device.lmp_name);
2242
2243 /* Be gentle and send DISCONNECT to all connected peers and those
2244 * currently waiting for us to accept or reject a connection request.
2245 * This frees the links. */
2246 if (hci->conn_req_host) {
2247 bt_hci_connection_reject(hci,
2248 hci->conn_req_host, HCI_OE_POWER_OFF);
2249 return;
2250 }
2251
2252 for (handle = HCI_HANDLE_OFFSET;
2253 handle < (HCI_HANDLE_OFFSET | HCI_HANDLES_MAX); handle ++)
2254 if (!bt_hci_handle_bad(hci, handle))
2255 bt_hci_disconnect(hci, handle, HCI_OE_POWER_OFF);
2256
2257 /* TODO: this is not enough actually, there may be slaves from whom
2258 * we have requested a connection who will soon (or not) respond with
2259 * an accept or a reject, so we should also check if hci->lm.connecting
2260 * is non-zero and if so, avoid freeing the hci but otherwise disappear
2261 * from all qemu social life (e.g. stop scanning and request to be
2262 * removed from s->device.net) and arrange for
2263 * s->device.lmp_connection_complete to free the remaining bits once
2264 * hci->lm.awaiting_bdaddr[] is empty. */
2265
2266 timer_free(hci->lm.inquiry_done);
2267 timer_free(hci->lm.inquiry_next);
2268 timer_free(hci->conn_accept_timer);
2269
2270 g_free(hci);
2271 }
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