1 /*
2 * ng_hci_evnt.c
3 */
4
5 /*-
6 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
7 *
8 * Copyright (c) Maksim Yevmenkin <[email protected]>
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * $Id: ng_hci_evnt.c,v 1.6 2003/09/08 18:57:51 max Exp $
33 * $FreeBSD$
34 */
35
36 #include <sys/param.h>
37 #include <sys/systm.h>
38 #include <sys/kernel.h>
39 #include <sys/endian.h>
40 #include <sys/malloc.h>
41 #include <sys/mbuf.h>
42 #include <sys/queue.h>
43 #include <netgraph/ng_message.h>
44 #include <netgraph/netgraph.h>
45 #include <netgraph/bluetooth/include/ng_bluetooth.h>
46 #include <netgraph/bluetooth/include/ng_hci.h>
47 #include <netgraph/bluetooth/hci/ng_hci_var.h>
48 #include <netgraph/bluetooth/hci/ng_hci_cmds.h>
49 #include <netgraph/bluetooth/hci/ng_hci_evnt.h>
50 #include <netgraph/bluetooth/hci/ng_hci_ulpi.h>
51 #include <netgraph/bluetooth/hci/ng_hci_misc.h>
52
53 /******************************************************************************
54 ******************************************************************************
55 ** HCI event processing module
56 ******************************************************************************
57 ******************************************************************************/
58
59 /*
60 * Event processing routines
61 */
62
63 static int inquiry_result (ng_hci_unit_p, struct mbuf *);
64 static int con_compl (ng_hci_unit_p, struct mbuf *);
65 static int con_req (ng_hci_unit_p, struct mbuf *);
66 static int discon_compl (ng_hci_unit_p, struct mbuf *);
67 static int encryption_change (ng_hci_unit_p, struct mbuf *);
68 static int read_remote_features_compl (ng_hci_unit_p, struct mbuf *);
69 static int qos_setup_compl (ng_hci_unit_p, struct mbuf *);
70 static int hardware_error (ng_hci_unit_p, struct mbuf *);
71 static int role_change (ng_hci_unit_p, struct mbuf *);
72 static int num_compl_pkts (ng_hci_unit_p, struct mbuf *);
73 static int mode_change (ng_hci_unit_p, struct mbuf *);
74 static int data_buffer_overflow (ng_hci_unit_p, struct mbuf *);
75 static int read_clock_offset_compl (ng_hci_unit_p, struct mbuf *);
76 static int qos_violation (ng_hci_unit_p, struct mbuf *);
77 static int page_scan_mode_change (ng_hci_unit_p, struct mbuf *);
78 static int page_scan_rep_mode_change (ng_hci_unit_p, struct mbuf *);
79 static int sync_con_queue (ng_hci_unit_p, ng_hci_unit_con_p, int);
80 static int send_data_packets (ng_hci_unit_p, int, int);
81 static int le_event (ng_hci_unit_p, struct mbuf *);
82
83 /*
84 * Process HCI event packet
85 */
86
87 int
ng_hci_process_event(ng_hci_unit_p unit,struct mbuf * event)88 ng_hci_process_event(ng_hci_unit_p unit, struct mbuf *event)
89 {
90 ng_hci_event_pkt_t *hdr = NULL;
91 int error = 0;
92
93 /* Get event packet header */
94 NG_HCI_M_PULLUP(event, sizeof(*hdr));
95 if (event == NULL)
96 return (ENOBUFS);
97
98 hdr = mtod(event, ng_hci_event_pkt_t *);
99
100 NG_HCI_INFO(
101 "%s: %s - got HCI event=%#x, length=%d\n",
102 __func__, NG_NODE_NAME(unit->node), hdr->event, hdr->length);
103
104 /* Get rid of event header and process event */
105 m_adj(event, sizeof(*hdr));
106
107 switch (hdr->event) {
108 case NG_HCI_EVENT_INQUIRY_COMPL:
109 case NG_HCI_EVENT_RETURN_LINK_KEYS:
110 case NG_HCI_EVENT_PIN_CODE_REQ:
111 case NG_HCI_EVENT_LINK_KEY_REQ:
112 case NG_HCI_EVENT_LINK_KEY_NOTIFICATION:
113 case NG_HCI_EVENT_LOOPBACK_COMMAND:
114 case NG_HCI_EVENT_AUTH_COMPL:
115 case NG_HCI_EVENT_CHANGE_CON_LINK_KEY_COMPL:
116 case NG_HCI_EVENT_MASTER_LINK_KEY_COMPL:
117 case NG_HCI_EVENT_FLUSH_OCCUR: /* XXX Do we have to handle it? */
118 case NG_HCI_EVENT_MAX_SLOT_CHANGE:
119 case NG_HCI_EVENT_CON_PKT_TYPE_CHANGED:
120 case NG_HCI_EVENT_BT_LOGO:
121 case NG_HCI_EVENT_VENDOR:
122 case NG_HCI_EVENT_REMOTE_NAME_REQ_COMPL:
123 case NG_HCI_EVENT_READ_REMOTE_VER_INFO_COMPL:
124 /* These do not need post processing */
125 NG_FREE_M(event);
126 break;
127 case NG_HCI_EVENT_LE:
128 error = le_event(unit, event);
129 break;
130
131 case NG_HCI_EVENT_INQUIRY_RESULT:
132 error = inquiry_result(unit, event);
133 break;
134
135 case NG_HCI_EVENT_CON_COMPL:
136 error = con_compl(unit, event);
137 break;
138
139 case NG_HCI_EVENT_CON_REQ:
140 error = con_req(unit, event);
141 break;
142
143 case NG_HCI_EVENT_DISCON_COMPL:
144 error = discon_compl(unit, event);
145 break;
146
147 case NG_HCI_EVENT_ENCRYPTION_CHANGE:
148 error = encryption_change(unit, event);
149 break;
150
151 case NG_HCI_EVENT_READ_REMOTE_FEATURES_COMPL:
152 error = read_remote_features_compl(unit, event);
153 break;
154
155 case NG_HCI_EVENT_QOS_SETUP_COMPL:
156 error = qos_setup_compl(unit, event);
157 break;
158
159 case NG_HCI_EVENT_COMMAND_COMPL:
160 error = ng_hci_process_command_complete(unit, event);
161 break;
162
163 case NG_HCI_EVENT_COMMAND_STATUS:
164 error = ng_hci_process_command_status(unit, event);
165 break;
166
167 case NG_HCI_EVENT_HARDWARE_ERROR:
168 error = hardware_error(unit, event);
169 break;
170
171 case NG_HCI_EVENT_ROLE_CHANGE:
172 error = role_change(unit, event);
173 break;
174
175 case NG_HCI_EVENT_NUM_COMPL_PKTS:
176 error = num_compl_pkts(unit, event);
177 break;
178
179 case NG_HCI_EVENT_MODE_CHANGE:
180 error = mode_change(unit, event);
181 break;
182
183 case NG_HCI_EVENT_DATA_BUFFER_OVERFLOW:
184 error = data_buffer_overflow(unit, event);
185 break;
186
187 case NG_HCI_EVENT_READ_CLOCK_OFFSET_COMPL:
188 error = read_clock_offset_compl(unit, event);
189 break;
190
191 case NG_HCI_EVENT_QOS_VIOLATION:
192 error = qos_violation(unit, event);
193 break;
194
195 case NG_HCI_EVENT_PAGE_SCAN_MODE_CHANGE:
196 error = page_scan_mode_change(unit, event);
197 break;
198
199 case NG_HCI_EVENT_PAGE_SCAN_REP_MODE_CHANGE:
200 error = page_scan_rep_mode_change(unit, event);
201 break;
202
203 default:
204 NG_FREE_M(event);
205 error = EINVAL;
206 break;
207 }
208
209 return (error);
210 } /* ng_hci_process_event */
211
212 /*
213 * Send ACL and/or SCO data to the unit driver
214 */
215
216 void
ng_hci_send_data(ng_hci_unit_p unit)217 ng_hci_send_data(ng_hci_unit_p unit)
218 {
219 int count;
220
221 /* Send ACL data */
222 NG_HCI_BUFF_ACL_AVAIL(unit->buffer, count);
223
224 NG_HCI_INFO(
225 "%s: %s - sending ACL data packets, count=%d\n",
226 __func__, NG_NODE_NAME(unit->node), count);
227
228 if (count > 0) {
229 count = send_data_packets(unit, NG_HCI_LINK_ACL, count);
230 NG_HCI_STAT_ACL_SENT(unit->stat, count);
231 NG_HCI_BUFF_ACL_USE(unit->buffer, count);
232 }
233
234 /* Send SCO data */
235 NG_HCI_BUFF_SCO_AVAIL(unit->buffer, count);
236
237 NG_HCI_INFO(
238 "%s: %s - sending SCO data packets, count=%d\n",
239 __func__, NG_NODE_NAME(unit->node), count);
240
241 if (count > 0) {
242 count = send_data_packets(unit, NG_HCI_LINK_SCO, count);
243 NG_HCI_STAT_SCO_SENT(unit->stat, count);
244 NG_HCI_BUFF_SCO_USE(unit->buffer, count);
245 }
246 } /* ng_hci_send_data */
247
248 /*
249 * Send data packets to the lower layer.
250 */
251
252 static int
send_data_packets(ng_hci_unit_p unit,int link_type,int limit)253 send_data_packets(ng_hci_unit_p unit, int link_type, int limit)
254 {
255 ng_hci_unit_con_p con = NULL, winner = NULL;
256 int reallink_type;
257 item_p item = NULL;
258 int min_pending, total_sent, sent, error, v;
259
260 for (total_sent = 0; limit > 0; ) {
261 min_pending = 0x0fffffff;
262 winner = NULL;
263
264 /*
265 * Find the connection that has has data to send
266 * and the smallest number of pending packets
267 */
268
269 LIST_FOREACH(con, &unit->con_list, next) {
270 reallink_type = (con->link_type == NG_HCI_LINK_SCO)?
271 NG_HCI_LINK_SCO: NG_HCI_LINK_ACL;
272 if (reallink_type != link_type){
273 continue;
274 }
275 if (NG_BT_ITEMQ_LEN(&con->conq) == 0)
276 continue;
277
278 if (con->pending < min_pending) {
279 winner = con;
280 min_pending = con->pending;
281 }
282 }
283
284 if (winner == NULL)
285 break;
286
287 /*
288 * OK, we have a winner now send as much packets as we can
289 * Count the number of packets we have sent and then sync
290 * winner connection queue.
291 */
292
293 for (sent = 0; limit > 0; limit --, total_sent ++, sent ++) {
294 NG_BT_ITEMQ_DEQUEUE(&winner->conq, item);
295 if (item == NULL)
296 break;
297
298 NG_HCI_INFO(
299 "%s: %s - sending data packet, handle=%d, len=%d\n",
300 __func__, NG_NODE_NAME(unit->node),
301 winner->con_handle, NGI_M(item)->m_pkthdr.len);
302
303 /* Check if driver hook still there */
304 v = (unit->drv != NULL && NG_HOOK_IS_VALID(unit->drv));
305 if (!v || (unit->state & NG_HCI_UNIT_READY) !=
306 NG_HCI_UNIT_READY) {
307 NG_HCI_ERR(
308 "%s: %s - could not send data. Hook \"%s\" is %svalid, state=%#x\n",
309 __func__, NG_NODE_NAME(unit->node),
310 NG_HCI_HOOK_DRV, ((v)? "" : "not "),
311 unit->state);
312
313 NG_FREE_ITEM(item);
314 error = ENOTCONN;
315 } else {
316 v = NGI_M(item)->m_pkthdr.len;
317
318 /* Give packet to raw hook */
319 ng_hci_mtap(unit, NGI_M(item));
320
321 /* ... and forward item to the driver */
322 NG_FWD_ITEM_HOOK(error, item, unit->drv);
323 }
324
325 if (error != 0) {
326 NG_HCI_ERR(
327 "%s: %s - could not send data packet, handle=%d, error=%d\n",
328 __func__, NG_NODE_NAME(unit->node),
329 winner->con_handle, error);
330 break;
331 }
332
333 winner->pending ++;
334 NG_HCI_STAT_BYTES_SENT(unit->stat, v);
335 }
336
337 /*
338 * Sync connection queue for the winner
339 */
340 sync_con_queue(unit, winner, sent);
341 }
342
343 return (total_sent);
344 } /* send_data_packets */
345
346 /*
347 * Send flow control messages to the upper layer
348 */
349
350 static int
sync_con_queue(ng_hci_unit_p unit,ng_hci_unit_con_p con,int completed)351 sync_con_queue(ng_hci_unit_p unit, ng_hci_unit_con_p con, int completed)
352 {
353 hook_p hook = NULL;
354 struct ng_mesg *msg = NULL;
355 ng_hci_sync_con_queue_ep *state = NULL;
356 int error;
357
358 hook = (con->link_type != NG_HCI_LINK_SCO)? unit->acl : unit->sco;
359 if (hook == NULL || NG_HOOK_NOT_VALID(hook))
360 return (ENOTCONN);
361
362 NG_MKMESSAGE(msg, NGM_HCI_COOKIE, NGM_HCI_SYNC_CON_QUEUE,
363 sizeof(*state), M_NOWAIT);
364 if (msg == NULL)
365 return (ENOMEM);
366
367 state = (ng_hci_sync_con_queue_ep *)(msg->data);
368 state->con_handle = con->con_handle;
369 state->completed = completed;
370
371 NG_SEND_MSG_HOOK(error, unit->node, msg, hook, 0);
372
373 return (error);
374 } /* sync_con_queue */
375 /* le meta event */
376 /* Inquiry result event */
377 static int
le_advertizing_report(ng_hci_unit_p unit,struct mbuf * event)378 le_advertizing_report(ng_hci_unit_p unit, struct mbuf *event)
379 {
380 ng_hci_le_advertising_report_ep *ep = NULL;
381 ng_hci_neighbor_p n = NULL;
382 bdaddr_t bdaddr;
383 int error = 0;
384 int num_reports = 0;
385 u_int8_t event_type;
386 u_int8_t addr_type;
387
388 NG_HCI_M_PULLUP(event, sizeof(*ep));
389 if (event == NULL)
390 return (ENOBUFS);
391
392 ep = mtod(event, ng_hci_le_advertising_report_ep *);
393 num_reports = ep->num_reports;
394 m_adj(event, sizeof(*ep));
395 ep = NULL;
396
397 for (; num_reports > 0; num_reports --) {
398 /* Get remote unit address */
399 NG_HCI_M_PULLUP(event, sizeof(u_int8_t));
400 event_type = *mtod(event, u_int8_t *);
401 m_adj(event, sizeof(u_int8_t));
402 NG_HCI_M_PULLUP(event, sizeof(u_int8_t));
403 addr_type = *mtod(event, u_int8_t *);
404 m_adj(event, sizeof(u_int8_t));
405
406 m_copydata(event, 0, sizeof(bdaddr), (caddr_t) &bdaddr);
407 m_adj(event, sizeof(bdaddr));
408
409 /* Lookup entry in the cache */
410 n = ng_hci_get_neighbor(unit, &bdaddr, (addr_type) ? NG_HCI_LINK_LE_RANDOM:NG_HCI_LINK_LE_PUBLIC);
411 if (n == NULL) {
412 /* Create new entry */
413 n = ng_hci_new_neighbor(unit);
414 if (n == NULL) {
415 error = ENOMEM;
416 break;
417 }
418 bcopy(&bdaddr, &n->bdaddr, sizeof(n->bdaddr));
419 n->addrtype = (addr_type)? NG_HCI_LINK_LE_RANDOM :
420 NG_HCI_LINK_LE_PUBLIC;
421
422 } else
423 getmicrotime(&n->updated);
424
425 {
426 /*
427 * TODO: Make these information
428 * Available from userland.
429 */
430 u_int8_t length_data;
431
432 event = m_pullup(event, sizeof(u_int8_t));
433 if(event == NULL){
434 NG_HCI_WARN("%s: Event datasize Pullup Failed\n", __func__);
435 goto out;
436 }
437 length_data = *mtod(event, u_int8_t *);
438 m_adj(event, sizeof(u_int8_t));
439 n->extinq_size = (length_data < NG_HCI_EXTINQ_MAX)?
440 length_data : NG_HCI_EXTINQ_MAX;
441
442 /*Advertizement data*/
443 event = m_pullup(event, n->extinq_size);
444 if(event == NULL){
445 NG_HCI_WARN("%s: Event data pullup Failed\n", __func__);
446 goto out;
447 }
448 m_copydata(event, 0, n->extinq_size, n->extinq_data);
449 m_adj(event, n->extinq_size);
450 event = m_pullup(event, sizeof(char ));
451 /*Get RSSI*/
452 if(event == NULL){
453 NG_HCI_WARN("%s: Event rssi pull up Failed\n", __func__);
454
455 goto out;
456 }
457 n->page_scan_mode = *mtod(event, char *);
458 m_adj(event, sizeof(u_int8_t));
459 }
460 }
461 out:
462 NG_FREE_M(event);
463
464 return (error);
465 } /* inquiry_result */
466
le_connection_complete(ng_hci_unit_p unit,struct mbuf * event)467 static int le_connection_complete(ng_hci_unit_p unit, struct mbuf *event)
468 {
469 int error = 0;
470
471 ng_hci_le_connection_complete_ep *ep = NULL;
472 ng_hci_unit_con_p con = NULL;
473 int link_type;
474 uint8_t uclass[3] = {0,0,0};//dummy uclass
475
476 NG_HCI_M_PULLUP(event, sizeof(*ep));
477 if (event == NULL)
478 return (ENOBUFS);
479
480 ep = mtod(event, ng_hci_le_connection_complete_ep *);
481 link_type = (ep->address_type)? NG_HCI_LINK_LE_RANDOM :
482 NG_HCI_LINK_LE_PUBLIC;
483 /*
484 * Find the first connection descriptor that matches the following:
485 *
486 * 1) con->link_type == link_type
487 * 2) con->state == NG_HCI_CON_W4_CONN_COMPLETE
488 * 3) con->bdaddr == ep->address
489 */
490 LIST_FOREACH(con, &unit->con_list, next)
491 if (con->link_type == link_type &&
492 con->state == NG_HCI_CON_W4_CONN_COMPLETE &&
493 bcmp(&con->bdaddr, &ep->address, sizeof(bdaddr_t)) == 0)
494 break;
495
496 /*
497 * Two possible cases:
498 *
499 * 1) We have found connection descriptor. That means upper layer has
500 * requested this connection via LP_CON_REQ message. In this case
501 * connection must have timeout set. If ng_hci_con_untimeout() fails
502 * then timeout message already went into node's queue. In this case
503 * ignore Connection_Complete event and let timeout deal with it.
504 *
505 * 2) We do not have connection descriptor. That means upper layer
506 * nas not requested this connection , (less likely) we gave up
507 * on this connection (timeout) or as node act as slave role.
508 * The most likely scenario is that
509 * we have received LE_Create_Connection command
510 * from the RAW hook
511 */
512
513 if (con == NULL) {
514 if (ep->status != 0)
515 goto out;
516
517 con = ng_hci_new_con(unit, link_type);
518 if (con == NULL) {
519 error = ENOMEM;
520 goto out;
521 }
522
523 con->state = NG_HCI_CON_W4_LP_CON_RSP;
524 ng_hci_con_timeout(con);
525
526 bcopy(&ep->address, &con->bdaddr, sizeof(con->bdaddr));
527 error = ng_hci_lp_con_ind(con, uclass);
528 if (error != 0) {
529 ng_hci_con_untimeout(con);
530 ng_hci_free_con(con);
531 }
532
533 } else if ((error = ng_hci_con_untimeout(con)) != 0)
534 goto out;
535
536 /*
537 * Update connection descriptor and send notification
538 * to the upper layers.
539 */
540
541 con->con_handle = NG_HCI_CON_HANDLE(le16toh(ep->handle));
542 con->encryption_mode = NG_HCI_ENCRYPTION_MODE_NONE;
543
544 ng_hci_lp_con_cfm(con, ep->status);
545
546 /* Adjust connection state */
547 if (ep->status != 0)
548 ng_hci_free_con(con);
549 else {
550 con->state = NG_HCI_CON_OPEN;
551
552 /*
553 * Change link policy for the ACL connections. Enable all
554 * supported link modes. Enable Role switch as well if
555 * device supports it.
556 */
557 }
558
559 out:
560 NG_FREE_M(event);
561
562 return (error);
563
564 }
565
le_connection_update(ng_hci_unit_p unit,struct mbuf * event)566 static int le_connection_update(ng_hci_unit_p unit, struct mbuf *event)
567 {
568 int error = 0;
569 /*TBD*/
570
571 NG_FREE_M(event);
572 return error;
573
574 }
575 static int
le_event(ng_hci_unit_p unit,struct mbuf * event)576 le_event(ng_hci_unit_p unit, struct mbuf *event)
577 {
578 int error = 0;
579 ng_hci_le_ep *lep;
580
581 NG_HCI_M_PULLUP(event, sizeof(*lep));
582 if(event ==NULL){
583 return ENOBUFS;
584 }
585 lep = mtod(event, ng_hci_le_ep *);
586 m_adj(event, sizeof(*lep));
587 switch(lep->subevent_code){
588 case NG_HCI_LEEV_CON_COMPL:
589 le_connection_complete(unit, event);
590 break;
591 case NG_HCI_LEEV_ADVREP:
592 le_advertizing_report(unit, event);
593 break;
594 case NG_HCI_LEEV_CON_UPDATE_COMPL:
595 le_connection_update(unit, event);
596 break;
597 case NG_HCI_LEEV_READ_REMOTE_FEATURES_COMPL:
598 //TBD
599 /*FALLTHROUGH*/
600 case NG_HCI_LEEV_LONG_TERM_KEY_REQUEST:
601 //TBD
602 /*FALLTHROUGH*/
603 default:
604 NG_FREE_M(event);
605 }
606 return error;
607 }
608
609 /* Inquiry result event */
610 static int
inquiry_result(ng_hci_unit_p unit,struct mbuf * event)611 inquiry_result(ng_hci_unit_p unit, struct mbuf *event)
612 {
613 ng_hci_inquiry_result_ep *ep = NULL;
614 ng_hci_neighbor_p n = NULL;
615 bdaddr_t bdaddr;
616 int error = 0;
617
618 NG_HCI_M_PULLUP(event, sizeof(*ep));
619 if (event == NULL)
620 return (ENOBUFS);
621
622 ep = mtod(event, ng_hci_inquiry_result_ep *);
623 m_adj(event, sizeof(*ep));
624
625 for (; ep->num_responses > 0; ep->num_responses --) {
626 /* Get remote unit address */
627 m_copydata(event, 0, sizeof(bdaddr), (caddr_t) &bdaddr);
628 m_adj(event, sizeof(bdaddr));
629
630 /* Lookup entry in the cache */
631 n = ng_hci_get_neighbor(unit, &bdaddr, NG_HCI_LINK_ACL);
632 if (n == NULL) {
633 /* Create new entry */
634 n = ng_hci_new_neighbor(unit);
635 if (n == NULL) {
636 error = ENOMEM;
637 break;
638 }
639 } else
640 getmicrotime(&n->updated);
641
642 bcopy(&bdaddr, &n->bdaddr, sizeof(n->bdaddr));
643 n->addrtype = NG_HCI_LINK_ACL;
644
645 /* XXX call m_pullup here? */
646
647 n->page_scan_rep_mode = *mtod(event, u_int8_t *);
648 m_adj(event, sizeof(u_int8_t));
649
650 /* page_scan_period_mode */
651 m_adj(event, sizeof(u_int8_t));
652
653 n->page_scan_mode = *mtod(event, u_int8_t *);
654 m_adj(event, sizeof(u_int8_t));
655
656 /* class */
657 m_adj(event, NG_HCI_CLASS_SIZE);
658
659 /* clock offset */
660 m_copydata(event, 0, sizeof(n->clock_offset),
661 (caddr_t) &n->clock_offset);
662 n->clock_offset = le16toh(n->clock_offset);
663 }
664
665 NG_FREE_M(event);
666
667 return (error);
668 } /* inquiry_result */
669
670 /* Connection complete event */
671 static int
con_compl(ng_hci_unit_p unit,struct mbuf * event)672 con_compl(ng_hci_unit_p unit, struct mbuf *event)
673 {
674 ng_hci_con_compl_ep *ep = NULL;
675 ng_hci_unit_con_p con = NULL;
676 int error = 0;
677
678 NG_HCI_M_PULLUP(event, sizeof(*ep));
679 if (event == NULL)
680 return (ENOBUFS);
681
682 ep = mtod(event, ng_hci_con_compl_ep *);
683
684 /*
685 * Find the first connection descriptor that matches the following:
686 *
687 * 1) con->link_type == ep->link_type
688 * 2) con->state == NG_HCI_CON_W4_CONN_COMPLETE
689 * 3) con->bdaddr == ep->bdaddr
690 */
691
692 LIST_FOREACH(con, &unit->con_list, next)
693 if (con->link_type == ep->link_type &&
694 con->state == NG_HCI_CON_W4_CONN_COMPLETE &&
695 bcmp(&con->bdaddr, &ep->bdaddr, sizeof(bdaddr_t)) == 0)
696 break;
697
698 /*
699 * Two possible cases:
700 *
701 * 1) We have found connection descriptor. That means upper layer has
702 * requested this connection via LP_CON_REQ message. In this case
703 * connection must have timeout set. If ng_hci_con_untimeout() fails
704 * then timeout message already went into node's queue. In this case
705 * ignore Connection_Complete event and let timeout deal with it.
706 *
707 * 2) We do not have connection descriptor. That means upper layer
708 * nas not requested this connection or (less likely) we gave up
709 * on this connection (timeout). The most likely scenario is that
710 * we have received Create_Connection/Add_SCO_Connection command
711 * from the RAW hook
712 */
713
714 if (con == NULL) {
715 if (ep->status != 0)
716 goto out;
717
718 con = ng_hci_new_con(unit, ep->link_type);
719 if (con == NULL) {
720 error = ENOMEM;
721 goto out;
722 }
723
724 bcopy(&ep->bdaddr, &con->bdaddr, sizeof(con->bdaddr));
725 } else if ((error = ng_hci_con_untimeout(con)) != 0)
726 goto out;
727
728 /*
729 * Update connection descriptor and send notification
730 * to the upper layers.
731 */
732
733 con->con_handle = NG_HCI_CON_HANDLE(le16toh(ep->con_handle));
734 con->encryption_mode = ep->encryption_mode;
735
736 ng_hci_lp_con_cfm(con, ep->status);
737
738 /* Adjust connection state */
739 if (ep->status != 0)
740 ng_hci_free_con(con);
741 else {
742 con->state = NG_HCI_CON_OPEN;
743
744 /*
745 * Change link policy for the ACL connections. Enable all
746 * supported link modes. Enable Role switch as well if
747 * device supports it.
748 */
749
750 if (ep->link_type == NG_HCI_LINK_ACL) {
751 struct __link_policy {
752 ng_hci_cmd_pkt_t hdr;
753 ng_hci_write_link_policy_settings_cp cp;
754 } __attribute__ ((packed)) *lp;
755 struct mbuf *m;
756
757 MGETHDR(m, M_NOWAIT, MT_DATA);
758 if (m != NULL) {
759 m->m_pkthdr.len = m->m_len = sizeof(*lp);
760 lp = mtod(m, struct __link_policy *);
761
762 lp->hdr.type = NG_HCI_CMD_PKT;
763 lp->hdr.opcode = htole16(NG_HCI_OPCODE(
764 NG_HCI_OGF_LINK_POLICY,
765 NG_HCI_OCF_WRITE_LINK_POLICY_SETTINGS));
766 lp->hdr.length = sizeof(lp->cp);
767
768 lp->cp.con_handle = ep->con_handle;
769
770 lp->cp.settings = 0;
771 if ((unit->features[0] & NG_HCI_LMP_SWITCH) &&
772 unit->role_switch)
773 lp->cp.settings |= 0x1;
774 if (unit->features[0] & NG_HCI_LMP_HOLD_MODE)
775 lp->cp.settings |= 0x2;
776 if (unit->features[0] & NG_HCI_LMP_SNIFF_MODE)
777 lp->cp.settings |= 0x4;
778 if (unit->features[1] & NG_HCI_LMP_PARK_MODE)
779 lp->cp.settings |= 0x8;
780
781 lp->cp.settings &= unit->link_policy_mask;
782 lp->cp.settings = htole16(lp->cp.settings);
783
784 NG_BT_MBUFQ_ENQUEUE(&unit->cmdq, m);
785 if (!(unit->state & NG_HCI_UNIT_COMMAND_PENDING))
786 ng_hci_send_command(unit);
787 }
788 }
789 }
790 out:
791 NG_FREE_M(event);
792
793 return (error);
794 } /* con_compl */
795
796 /* Connection request event */
797 static int
con_req(ng_hci_unit_p unit,struct mbuf * event)798 con_req(ng_hci_unit_p unit, struct mbuf *event)
799 {
800 ng_hci_con_req_ep *ep = NULL;
801 ng_hci_unit_con_p con = NULL;
802 int error = 0;
803
804 NG_HCI_M_PULLUP(event, sizeof(*ep));
805 if (event == NULL)
806 return (ENOBUFS);
807
808 ep = mtod(event, ng_hci_con_req_ep *);
809
810 /*
811 * Find the first connection descriptor that matches the following:
812 *
813 * 1) con->link_type == ep->link_type
814 *
815 * 2) con->state == NG_HCI_CON_W4_LP_CON_RSP ||
816 * con->state == NG_HCI_CON_W4_CONN_COMPL
817 *
818 * 3) con->bdaddr == ep->bdaddr
819 *
820 * Possible cases:
821 *
822 * 1) We do not have connection descriptor. This is simple. Create
823 * new fresh connection descriptor and send notification to the
824 * appropriate upstream hook (based on link_type).
825 *
826 * 2) We found connection handle. This is more complicated.
827 *
828 * 2.1) ACL links
829 *
830 * Since only one ACL link can exist between each pair of
831 * units then we have a race. Our upper layer has requested
832 * an ACL connection to the remote unit, but we did not send
833 * command yet. At the same time the remote unit has requested
834 * an ACL connection from us. In this case we will ignore
835 * Connection_Request event. This probably will cause connect
836 * failure on both units.
837 *
838 * 2.2) SCO links
839 *
840 * The spec on page 45 says :
841 *
842 * "The master can support up to three SCO links to the same
843 * slave or to different slaves. A slave can support up to
844 * three SCO links from the same master, or two SCO links if
845 * the links originate from different masters."
846 *
847 * The only problem is how to handle multiple SCO links between
848 * matster and slave. For now we will assume that multiple SCO
849 * links MUST be opened one after another.
850 */
851
852 LIST_FOREACH(con, &unit->con_list, next)
853 if (con->link_type == ep->link_type &&
854 (con->state == NG_HCI_CON_W4_LP_CON_RSP ||
855 con->state == NG_HCI_CON_W4_CONN_COMPLETE) &&
856 bcmp(&con->bdaddr, &ep->bdaddr, sizeof(bdaddr_t)) == 0)
857 break;
858
859 if (con == NULL) {
860 con = ng_hci_new_con(unit, ep->link_type);
861 if (con != NULL) {
862 bcopy(&ep->bdaddr, &con->bdaddr, sizeof(con->bdaddr));
863
864 con->state = NG_HCI_CON_W4_LP_CON_RSP;
865 ng_hci_con_timeout(con);
866
867 error = ng_hci_lp_con_ind(con, ep->uclass);
868 if (error != 0) {
869 ng_hci_con_untimeout(con);
870 ng_hci_free_con(con);
871 }
872 } else
873 error = ENOMEM;
874 }
875
876 NG_FREE_M(event);
877
878 return (error);
879 } /* con_req */
880
881 /* Disconnect complete event */
882 static int
discon_compl(ng_hci_unit_p unit,struct mbuf * event)883 discon_compl(ng_hci_unit_p unit, struct mbuf *event)
884 {
885 ng_hci_discon_compl_ep *ep = NULL;
886 ng_hci_unit_con_p con = NULL;
887 int error = 0;
888 u_int16_t h;
889
890 NG_HCI_M_PULLUP(event, sizeof(*ep));
891 if (event == NULL)
892 return (ENOBUFS);
893
894 ep = mtod(event, ng_hci_discon_compl_ep *);
895
896 /*
897 * XXX
898 * Do we have to send notification if ep->status != 0?
899 * For now we will send notification for both ACL and SCO connections
900 * ONLY if ep->status == 0.
901 */
902
903 if (ep->status == 0) {
904 h = NG_HCI_CON_HANDLE(le16toh(ep->con_handle));
905 con = ng_hci_con_by_handle(unit, h);
906 if (con != NULL) {
907 error = ng_hci_lp_discon_ind(con, ep->reason);
908
909 /* Remove all timeouts (if any) */
910 if (con->flags & NG_HCI_CON_TIMEOUT_PENDING)
911 ng_hci_con_untimeout(con);
912
913 ng_hci_free_con(con);
914 } else {
915 NG_HCI_ALERT(
916 "%s: %s - invalid connection handle=%d\n",
917 __func__, NG_NODE_NAME(unit->node), h);
918 error = ENOENT;
919 }
920 }
921
922 NG_FREE_M(event);
923
924 return (error);
925 } /* discon_compl */
926
927 /* Encryption change event */
928 static int
encryption_change(ng_hci_unit_p unit,struct mbuf * event)929 encryption_change(ng_hci_unit_p unit, struct mbuf *event)
930 {
931 ng_hci_encryption_change_ep *ep = NULL;
932 ng_hci_unit_con_p con = NULL;
933 int error = 0;
934 u_int16_t h;
935
936 NG_HCI_M_PULLUP(event, sizeof(*ep));
937 if (event == NULL)
938 return (ENOBUFS);
939
940 ep = mtod(event, ng_hci_encryption_change_ep *);
941 h = NG_HCI_CON_HANDLE(le16toh(ep->con_handle));
942 con = ng_hci_con_by_handle(unit, h);
943
944 if (ep->status == 0) {
945 if (con == NULL) {
946 NG_HCI_ALERT(
947 "%s: %s - invalid connection handle=%d\n",
948 __func__, NG_NODE_NAME(unit->node), h);
949 error = ENOENT;
950 } else if (con->link_type == NG_HCI_LINK_SCO) {
951 NG_HCI_ALERT(
952 "%s: %s - invalid link type=%d\n",
953 __func__, NG_NODE_NAME(unit->node),
954 con->link_type);
955 error = EINVAL;
956 } else if (ep->encryption_enable)
957 /* XXX is that true? */
958 con->encryption_mode = NG_HCI_ENCRYPTION_MODE_P2P;
959 else
960 con->encryption_mode = NG_HCI_ENCRYPTION_MODE_NONE;
961 } else
962 NG_HCI_ERR(
963 "%s: %s - failed to change encryption mode, status=%d\n",
964 __func__, NG_NODE_NAME(unit->node), ep->status);
965
966 /*Anyway, propagete encryption status to upper layer*/
967 ng_hci_lp_enc_change(con, con->encryption_mode);
968
969 NG_FREE_M(event);
970
971 return (error);
972 } /* encryption_change */
973
974 /* Read remote feature complete event */
975 static int
read_remote_features_compl(ng_hci_unit_p unit,struct mbuf * event)976 read_remote_features_compl(ng_hci_unit_p unit, struct mbuf *event)
977 {
978 ng_hci_read_remote_features_compl_ep *ep = NULL;
979 ng_hci_unit_con_p con = NULL;
980 ng_hci_neighbor_p n = NULL;
981 u_int16_t h;
982 int error = 0;
983
984 NG_HCI_M_PULLUP(event, sizeof(*ep));
985 if (event == NULL)
986 return (ENOBUFS);
987
988 ep = mtod(event, ng_hci_read_remote_features_compl_ep *);
989
990 if (ep->status == 0) {
991 /* Check if we have this connection handle */
992 h = NG_HCI_CON_HANDLE(le16toh(ep->con_handle));
993 con = ng_hci_con_by_handle(unit, h);
994 if (con == NULL) {
995 NG_HCI_ALERT(
996 "%s: %s - invalid connection handle=%d\n",
997 __func__, NG_NODE_NAME(unit->node), h);
998 error = ENOENT;
999 goto out;
1000 }
1001
1002 /* Update cache entry */
1003 n = ng_hci_get_neighbor(unit, &con->bdaddr, NG_HCI_LINK_ACL);
1004 if (n == NULL) {
1005 n = ng_hci_new_neighbor(unit);
1006 if (n == NULL) {
1007 error = ENOMEM;
1008 goto out;
1009 }
1010
1011 bcopy(&con->bdaddr, &n->bdaddr, sizeof(n->bdaddr));
1012 n->addrtype = NG_HCI_LINK_ACL;
1013 } else
1014 getmicrotime(&n->updated);
1015
1016 bcopy(ep->features, n->features, sizeof(n->features));
1017 } else
1018 NG_HCI_ERR(
1019 "%s: %s - failed to read remote unit features, status=%d\n",
1020 __func__, NG_NODE_NAME(unit->node), ep->status);
1021 out:
1022 NG_FREE_M(event);
1023
1024 return (error);
1025 } /* read_remote_features_compl */
1026
1027 /* QoS setup complete event */
1028 static int
qos_setup_compl(ng_hci_unit_p unit,struct mbuf * event)1029 qos_setup_compl(ng_hci_unit_p unit, struct mbuf *event)
1030 {
1031 ng_hci_qos_setup_compl_ep *ep = NULL;
1032 ng_hci_unit_con_p con = NULL;
1033 u_int16_t h;
1034 int error = 0;
1035
1036 NG_HCI_M_PULLUP(event, sizeof(*ep));
1037 if (event == NULL)
1038 return (ENOBUFS);
1039
1040 ep = mtod(event, ng_hci_qos_setup_compl_ep *);
1041
1042 /* Check if we have this connection handle */
1043 h = NG_HCI_CON_HANDLE(le16toh(ep->con_handle));
1044 con = ng_hci_con_by_handle(unit, h);
1045 if (con == NULL) {
1046 NG_HCI_ALERT(
1047 "%s: %s - invalid connection handle=%d\n",
1048 __func__, NG_NODE_NAME(unit->node), h);
1049 error = ENOENT;
1050 } else if (con->link_type != NG_HCI_LINK_ACL) {
1051 NG_HCI_ALERT(
1052 "%s: %s - invalid link type=%d, handle=%d\n",
1053 __func__, NG_NODE_NAME(unit->node), con->link_type, h);
1054 error = EINVAL;
1055 } else if (con->state != NG_HCI_CON_OPEN) {
1056 NG_HCI_ALERT(
1057 "%s: %s - invalid connection state=%d, handle=%d\n",
1058 __func__, NG_NODE_NAME(unit->node),
1059 con->state, h);
1060 error = EINVAL;
1061 } else /* Notify upper layer */
1062 error = ng_hci_lp_qos_cfm(con, ep->status);
1063
1064 NG_FREE_M(event);
1065
1066 return (error);
1067 } /* qos_setup_compl */
1068
1069 /* Hardware error event */
1070 static int
hardware_error(ng_hci_unit_p unit,struct mbuf * event)1071 hardware_error(ng_hci_unit_p unit, struct mbuf *event)
1072 {
1073 NG_HCI_ALERT(
1074 "%s: %s - hardware error %#x\n",
1075 __func__, NG_NODE_NAME(unit->node), *mtod(event, u_int8_t *));
1076
1077 NG_FREE_M(event);
1078
1079 return (0);
1080 } /* hardware_error */
1081
1082 /* Role change event */
1083 static int
role_change(ng_hci_unit_p unit,struct mbuf * event)1084 role_change(ng_hci_unit_p unit, struct mbuf *event)
1085 {
1086 ng_hci_role_change_ep *ep = NULL;
1087 ng_hci_unit_con_p con = NULL;
1088
1089 NG_HCI_M_PULLUP(event, sizeof(*ep));
1090 if (event == NULL)
1091 return (ENOBUFS);
1092
1093 ep = mtod(event, ng_hci_role_change_ep *);
1094
1095 if (ep->status == 0) {
1096 /* XXX shoud we also change "role" for SCO connections? */
1097 con = ng_hci_con_by_bdaddr(unit, &ep->bdaddr, NG_HCI_LINK_ACL);
1098 if (con != NULL)
1099 con->role = ep->role;
1100 else
1101 NG_HCI_ALERT(
1102 "%s: %s - ACL connection does not exist, bdaddr=%x:%x:%x:%x:%x:%x\n",
1103 __func__, NG_NODE_NAME(unit->node),
1104 ep->bdaddr.b[5], ep->bdaddr.b[4],
1105 ep->bdaddr.b[3], ep->bdaddr.b[2],
1106 ep->bdaddr.b[1], ep->bdaddr.b[0]);
1107 } else
1108 NG_HCI_ERR(
1109 "%s: %s - failed to change role, status=%d, bdaddr=%x:%x:%x:%x:%x:%x\n",
1110 __func__, NG_NODE_NAME(unit->node), ep->status,
1111 ep->bdaddr.b[5], ep->bdaddr.b[4], ep->bdaddr.b[3],
1112 ep->bdaddr.b[2], ep->bdaddr.b[1], ep->bdaddr.b[0]);
1113
1114 NG_FREE_M(event);
1115
1116 return (0);
1117 } /* role_change */
1118
1119 /* Number of completed packets event */
1120 static int
num_compl_pkts(ng_hci_unit_p unit,struct mbuf * event)1121 num_compl_pkts(ng_hci_unit_p unit, struct mbuf *event)
1122 {
1123 ng_hci_num_compl_pkts_ep *ep = NULL;
1124 ng_hci_unit_con_p con = NULL;
1125 u_int16_t h, p;
1126
1127 NG_HCI_M_PULLUP(event, sizeof(*ep));
1128 if (event == NULL)
1129 return (ENOBUFS);
1130
1131 ep = mtod(event, ng_hci_num_compl_pkts_ep *);
1132 m_adj(event, sizeof(*ep));
1133
1134 for (; ep->num_con_handles > 0; ep->num_con_handles --) {
1135 /* Get connection handle */
1136 m_copydata(event, 0, sizeof(h), (caddr_t) &h);
1137 m_adj(event, sizeof(h));
1138 h = NG_HCI_CON_HANDLE(le16toh(h));
1139
1140 /* Get number of completed packets */
1141 m_copydata(event, 0, sizeof(p), (caddr_t) &p);
1142 m_adj(event, sizeof(p));
1143 p = le16toh(p);
1144
1145 /* Check if we have this connection handle */
1146 con = ng_hci_con_by_handle(unit, h);
1147 if (con != NULL) {
1148 con->pending -= p;
1149 if (con->pending < 0) {
1150 NG_HCI_WARN(
1151 "%s: %s - pending packet counter is out of sync! " \
1152 "handle=%d, pending=%d, ncp=%d\n", __func__, NG_NODE_NAME(unit->node),
1153 con->con_handle, con->pending, p);
1154
1155 con->pending = 0;
1156 }
1157
1158 /* Update buffer descriptor */
1159 if (con->link_type != NG_HCI_LINK_SCO)
1160 NG_HCI_BUFF_ACL_FREE(unit->buffer, p);
1161 else
1162 NG_HCI_BUFF_SCO_FREE(unit->buffer, p);
1163 } else
1164 NG_HCI_ALERT(
1165 "%s: %s - invalid connection handle=%d\n",
1166 __func__, NG_NODE_NAME(unit->node), h);
1167 }
1168
1169 NG_FREE_M(event);
1170
1171 /* Send more data */
1172 ng_hci_send_data(unit);
1173
1174 return (0);
1175 } /* num_compl_pkts */
1176
1177 /* Mode change event */
1178 static int
mode_change(ng_hci_unit_p unit,struct mbuf * event)1179 mode_change(ng_hci_unit_p unit, struct mbuf *event)
1180 {
1181 ng_hci_mode_change_ep *ep = NULL;
1182 ng_hci_unit_con_p con = NULL;
1183 int error = 0;
1184
1185 NG_HCI_M_PULLUP(event, sizeof(*ep));
1186 if (event == NULL)
1187 return (ENOBUFS);
1188
1189 ep = mtod(event, ng_hci_mode_change_ep *);
1190
1191 if (ep->status == 0) {
1192 u_int16_t h = NG_HCI_CON_HANDLE(le16toh(ep->con_handle));
1193
1194 con = ng_hci_con_by_handle(unit, h);
1195 if (con == NULL) {
1196 NG_HCI_ALERT(
1197 "%s: %s - invalid connection handle=%d\n",
1198 __func__, NG_NODE_NAME(unit->node), h);
1199 error = ENOENT;
1200 } else if (con->link_type != NG_HCI_LINK_ACL) {
1201 NG_HCI_ALERT(
1202 "%s: %s - invalid link type=%d\n",
1203 __func__, NG_NODE_NAME(unit->node),
1204 con->link_type);
1205 error = EINVAL;
1206 } else
1207 con->mode = ep->unit_mode;
1208 } else
1209 NG_HCI_ERR(
1210 "%s: %s - failed to change mode, status=%d\n",
1211 __func__, NG_NODE_NAME(unit->node), ep->status);
1212
1213 NG_FREE_M(event);
1214
1215 return (error);
1216 } /* mode_change */
1217
1218 /* Data buffer overflow event */
1219 static int
data_buffer_overflow(ng_hci_unit_p unit,struct mbuf * event)1220 data_buffer_overflow(ng_hci_unit_p unit, struct mbuf *event)
1221 {
1222 NG_HCI_ALERT(
1223 "%s: %s - %s data buffer overflow\n",
1224 __func__, NG_NODE_NAME(unit->node),
1225 (*mtod(event, u_int8_t *) == NG_HCI_LINK_ACL)? "ACL" : "SCO");
1226
1227 NG_FREE_M(event);
1228
1229 return (0);
1230 } /* data_buffer_overflow */
1231
1232 /* Read clock offset complete event */
1233 static int
read_clock_offset_compl(ng_hci_unit_p unit,struct mbuf * event)1234 read_clock_offset_compl(ng_hci_unit_p unit, struct mbuf *event)
1235 {
1236 ng_hci_read_clock_offset_compl_ep *ep = NULL;
1237 ng_hci_unit_con_p con = NULL;
1238 ng_hci_neighbor_p n = NULL;
1239 int error = 0;
1240
1241 NG_HCI_M_PULLUP(event, sizeof(*ep));
1242 if (event == NULL)
1243 return (ENOBUFS);
1244
1245 ep = mtod(event, ng_hci_read_clock_offset_compl_ep *);
1246
1247 if (ep->status == 0) {
1248 u_int16_t h = NG_HCI_CON_HANDLE(le16toh(ep->con_handle));
1249
1250 con = ng_hci_con_by_handle(unit, h);
1251 if (con == NULL) {
1252 NG_HCI_ALERT(
1253 "%s: %s - invalid connection handle=%d\n",
1254 __func__, NG_NODE_NAME(unit->node), h);
1255 error = ENOENT;
1256 goto out;
1257 }
1258
1259 /* Update cache entry */
1260 n = ng_hci_get_neighbor(unit, &con->bdaddr, NG_HCI_LINK_ACL);
1261 if (n == NULL) {
1262 n = ng_hci_new_neighbor(unit);
1263 if (n == NULL) {
1264 error = ENOMEM;
1265 goto out;
1266 }
1267
1268 bcopy(&con->bdaddr, &n->bdaddr, sizeof(n->bdaddr));
1269 n->addrtype = NG_HCI_LINK_ACL;
1270 } else
1271 getmicrotime(&n->updated);
1272
1273 n->clock_offset = le16toh(ep->clock_offset);
1274 } else
1275 NG_HCI_ERR(
1276 "%s: %s - failed to Read Remote Clock Offset, status=%d\n",
1277 __func__, NG_NODE_NAME(unit->node), ep->status);
1278 out:
1279 NG_FREE_M(event);
1280
1281 return (error);
1282 } /* read_clock_offset_compl */
1283
1284 /* QoS violation event */
1285 static int
qos_violation(ng_hci_unit_p unit,struct mbuf * event)1286 qos_violation(ng_hci_unit_p unit, struct mbuf *event)
1287 {
1288 ng_hci_qos_violation_ep *ep = NULL;
1289 ng_hci_unit_con_p con = NULL;
1290 u_int16_t h;
1291 int error = 0;
1292
1293 NG_HCI_M_PULLUP(event, sizeof(*ep));
1294 if (event == NULL)
1295 return (ENOBUFS);
1296
1297 ep = mtod(event, ng_hci_qos_violation_ep *);
1298
1299 /* Check if we have this connection handle */
1300 h = NG_HCI_CON_HANDLE(le16toh(ep->con_handle));
1301 con = ng_hci_con_by_handle(unit, h);
1302 if (con == NULL) {
1303 NG_HCI_ALERT(
1304 "%s: %s - invalid connection handle=%d\n",
1305 __func__, NG_NODE_NAME(unit->node), h);
1306 error = ENOENT;
1307 } else if (con->link_type != NG_HCI_LINK_ACL) {
1308 NG_HCI_ALERT(
1309 "%s: %s - invalid link type=%d\n",
1310 __func__, NG_NODE_NAME(unit->node), con->link_type);
1311 error = EINVAL;
1312 } else if (con->state != NG_HCI_CON_OPEN) {
1313 NG_HCI_ALERT(
1314 "%s: %s - invalid connection state=%d, handle=%d\n",
1315 __func__, NG_NODE_NAME(unit->node), con->state, h);
1316 error = EINVAL;
1317 } else /* Notify upper layer */
1318 error = ng_hci_lp_qos_ind(con);
1319
1320 NG_FREE_M(event);
1321
1322 return (error);
1323 } /* qos_violation */
1324
1325 /* Page scan mode change event */
1326 static int
page_scan_mode_change(ng_hci_unit_p unit,struct mbuf * event)1327 page_scan_mode_change(ng_hci_unit_p unit, struct mbuf *event)
1328 {
1329 ng_hci_page_scan_mode_change_ep *ep = NULL;
1330 ng_hci_neighbor_p n = NULL;
1331 int error = 0;
1332
1333 NG_HCI_M_PULLUP(event, sizeof(*ep));
1334 if (event == NULL)
1335 return (ENOBUFS);
1336
1337 ep = mtod(event, ng_hci_page_scan_mode_change_ep *);
1338
1339 /* Update cache entry */
1340 n = ng_hci_get_neighbor(unit, &ep->bdaddr, NG_HCI_LINK_ACL);
1341 if (n == NULL) {
1342 n = ng_hci_new_neighbor(unit);
1343 if (n == NULL) {
1344 error = ENOMEM;
1345 goto out;
1346 }
1347
1348 bcopy(&ep->bdaddr, &n->bdaddr, sizeof(n->bdaddr));
1349 n->addrtype = NG_HCI_LINK_ACL;
1350 } else
1351 getmicrotime(&n->updated);
1352
1353 n->page_scan_mode = ep->page_scan_mode;
1354 out:
1355 NG_FREE_M(event);
1356
1357 return (error);
1358 } /* page_scan_mode_change */
1359
1360 /* Page scan repetition mode change event */
1361 static int
page_scan_rep_mode_change(ng_hci_unit_p unit,struct mbuf * event)1362 page_scan_rep_mode_change(ng_hci_unit_p unit, struct mbuf *event)
1363 {
1364 ng_hci_page_scan_rep_mode_change_ep *ep = NULL;
1365 ng_hci_neighbor_p n = NULL;
1366 int error = 0;
1367
1368 NG_HCI_M_PULLUP(event, sizeof(*ep));
1369 if (event == NULL)
1370 return (ENOBUFS);
1371
1372 ep = mtod(event, ng_hci_page_scan_rep_mode_change_ep *);
1373
1374 /* Update cache entry */
1375 n = ng_hci_get_neighbor(unit, &ep->bdaddr, NG_HCI_LINK_ACL);
1376 if (n == NULL) {
1377 n = ng_hci_new_neighbor(unit);
1378 if (n == NULL) {
1379 error = ENOMEM;
1380 goto out;
1381 }
1382
1383 bcopy(&ep->bdaddr, &n->bdaddr, sizeof(n->bdaddr));
1384 n->addrtype = NG_HCI_LINK_ACL;
1385 } else
1386 getmicrotime(&n->updated);
1387
1388 n->page_scan_rep_mode = ep->page_scan_rep_mode;
1389 out:
1390 NG_FREE_M(event);
1391
1392 return (error);
1393 } /* page_scan_rep_mode_change */
1394