Commit | Line | Data |
---|---|---|
8e87d142 | 1 | /* |
1da177e4 | 2 | BlueZ - Bluetooth protocol stack for Linux |
2d0a0346 | 3 | Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. |
1da177e4 LT |
4 | |
5 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License version 2 as | |
9 | published by the Free Software Foundation; | |
10 | ||
11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
12 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
13 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. | |
14 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY | |
8e87d142 YH |
15 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
16 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
17 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
1da177e4 LT |
18 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
19 | ||
8e87d142 YH |
20 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
21 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS | |
1da177e4 LT |
22 | SOFTWARE IS DISCLAIMED. |
23 | */ | |
24 | ||
25 | /* Bluetooth HCI connection handling. */ | |
26 | ||
1da177e4 LT |
27 | #include <linux/module.h> |
28 | ||
29 | #include <linux/types.h> | |
30 | #include <linux/errno.h> | |
31 | #include <linux/kernel.h> | |
1da177e4 LT |
32 | #include <linux/slab.h> |
33 | #include <linux/poll.h> | |
34 | #include <linux/fcntl.h> | |
35 | #include <linux/init.h> | |
36 | #include <linux/skbuff.h> | |
37 | #include <linux/interrupt.h> | |
38 | #include <linux/notifier.h> | |
39 | #include <net/sock.h> | |
40 | ||
41 | #include <asm/system.h> | |
70f23020 | 42 | #include <linux/uaccess.h> |
1da177e4 LT |
43 | #include <asm/unaligned.h> |
44 | ||
45 | #include <net/bluetooth/bluetooth.h> | |
46 | #include <net/bluetooth/hci_core.h> | |
47 | ||
fcd89c09 VT |
48 | static void hci_le_connect(struct hci_conn *conn) |
49 | { | |
50 | struct hci_dev *hdev = conn->hdev; | |
51 | struct hci_cp_le_create_conn cp; | |
52 | ||
53 | conn->state = BT_CONNECT; | |
a0c808b3 | 54 | conn->out = true; |
b92a6223 | 55 | conn->link_mode |= HCI_LM_MASTER; |
7b5c0d52 | 56 | conn->sec_level = BT_SECURITY_LOW; |
fcd89c09 VT |
57 | |
58 | memset(&cp, 0, sizeof(cp)); | |
0e833915 AL |
59 | cp.scan_interval = cpu_to_le16(0x0060); |
60 | cp.scan_window = cpu_to_le16(0x0030); | |
fcd89c09 | 61 | bacpy(&cp.peer_addr, &conn->dst); |
6d3ce0e7 | 62 | cp.peer_addr_type = conn->dst_type; |
0e833915 AL |
63 | cp.conn_interval_min = cpu_to_le16(0x0028); |
64 | cp.conn_interval_max = cpu_to_le16(0x0038); | |
65 | cp.supervision_timeout = cpu_to_le16(0x002a); | |
66 | cp.min_ce_len = cpu_to_le16(0x0000); | |
67 | cp.max_ce_len = cpu_to_le16(0x0000); | |
fcd89c09 VT |
68 | |
69 | hci_send_cmd(hdev, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp); | |
70 | } | |
71 | ||
72 | static void hci_le_connect_cancel(struct hci_conn *conn) | |
73 | { | |
74 | hci_send_cmd(conn->hdev, HCI_OP_LE_CREATE_CONN_CANCEL, 0, NULL); | |
75 | } | |
76 | ||
4c67bc74 | 77 | void hci_acl_connect(struct hci_conn *conn) |
1da177e4 LT |
78 | { |
79 | struct hci_dev *hdev = conn->hdev; | |
80 | struct inquiry_entry *ie; | |
81 | struct hci_cp_create_conn cp; | |
82 | ||
83 | BT_DBG("%p", conn); | |
84 | ||
85 | conn->state = BT_CONNECT; | |
a0c808b3 | 86 | conn->out = true; |
a8746417 | 87 | |
1da177e4 LT |
88 | conn->link_mode = HCI_LM_MASTER; |
89 | ||
4c67bc74 MH |
90 | conn->attempt++; |
91 | ||
e4e8e37c MH |
92 | conn->link_policy = hdev->link_policy; |
93 | ||
1da177e4 LT |
94 | memset(&cp, 0, sizeof(cp)); |
95 | bacpy(&cp.bdaddr, &conn->dst); | |
96 | cp.pscan_rep_mode = 0x02; | |
97 | ||
70f23020 AE |
98 | ie = hci_inquiry_cache_lookup(hdev, &conn->dst); |
99 | if (ie) { | |
41a96212 MH |
100 | if (inquiry_entry_age(ie) <= INQUIRY_ENTRY_AGE_MAX) { |
101 | cp.pscan_rep_mode = ie->data.pscan_rep_mode; | |
102 | cp.pscan_mode = ie->data.pscan_mode; | |
103 | cp.clock_offset = ie->data.clock_offset | | |
104 | cpu_to_le16(0x8000); | |
105 | } | |
106 | ||
1da177e4 | 107 | memcpy(conn->dev_class, ie->data.dev_class, 3); |
58a681ef JH |
108 | if (ie->data.ssp_mode > 0) |
109 | set_bit(HCI_CONN_SSP_ENABLED, &conn->flags); | |
1da177e4 LT |
110 | } |
111 | ||
a8746417 | 112 | cp.pkt_type = cpu_to_le16(conn->pkt_type); |
1da177e4 | 113 | if (lmp_rswitch_capable(hdev) && !(hdev->link_mode & HCI_LM_MASTER)) |
b6a0dc82 | 114 | cp.role_switch = 0x01; |
1da177e4 | 115 | else |
b6a0dc82 | 116 | cp.role_switch = 0x00; |
4c67bc74 | 117 | |
a9de9248 | 118 | hci_send_cmd(hdev, HCI_OP_CREATE_CONN, sizeof(cp), &cp); |
1da177e4 LT |
119 | } |
120 | ||
6ac59344 MH |
121 | static void hci_acl_connect_cancel(struct hci_conn *conn) |
122 | { | |
123 | struct hci_cp_create_conn_cancel cp; | |
124 | ||
125 | BT_DBG("%p", conn); | |
126 | ||
d095c1eb | 127 | if (conn->hdev->hci_ver < BLUETOOTH_VER_1_2) |
6ac59344 MH |
128 | return; |
129 | ||
130 | bacpy(&cp.bdaddr, &conn->dst); | |
a9de9248 | 131 | hci_send_cmd(conn->hdev, HCI_OP_CREATE_CONN_CANCEL, sizeof(cp), &cp); |
6ac59344 MH |
132 | } |
133 | ||
1da177e4 LT |
134 | void hci_acl_disconn(struct hci_conn *conn, __u8 reason) |
135 | { | |
136 | struct hci_cp_disconnect cp; | |
137 | ||
138 | BT_DBG("%p", conn); | |
139 | ||
140 | conn->state = BT_DISCONN; | |
141 | ||
aca3192c | 142 | cp.handle = cpu_to_le16(conn->handle); |
1da177e4 | 143 | cp.reason = reason; |
a9de9248 | 144 | hci_send_cmd(conn->hdev, HCI_OP_DISCONNECT, sizeof(cp), &cp); |
1da177e4 LT |
145 | } |
146 | ||
147 | void hci_add_sco(struct hci_conn *conn, __u16 handle) | |
148 | { | |
149 | struct hci_dev *hdev = conn->hdev; | |
150 | struct hci_cp_add_sco cp; | |
151 | ||
152 | BT_DBG("%p", conn); | |
153 | ||
154 | conn->state = BT_CONNECT; | |
a0c808b3 | 155 | conn->out = true; |
1da177e4 | 156 | |
efc7688b MH |
157 | conn->attempt++; |
158 | ||
aca3192c | 159 | cp.handle = cpu_to_le16(handle); |
a8746417 | 160 | cp.pkt_type = cpu_to_le16(conn->pkt_type); |
1da177e4 | 161 | |
a9de9248 | 162 | hci_send_cmd(hdev, HCI_OP_ADD_SCO, sizeof(cp), &cp); |
1da177e4 LT |
163 | } |
164 | ||
b6a0dc82 MH |
165 | void hci_setup_sync(struct hci_conn *conn, __u16 handle) |
166 | { | |
167 | struct hci_dev *hdev = conn->hdev; | |
168 | struct hci_cp_setup_sync_conn cp; | |
169 | ||
170 | BT_DBG("%p", conn); | |
171 | ||
172 | conn->state = BT_CONNECT; | |
a0c808b3 | 173 | conn->out = true; |
b6a0dc82 | 174 | |
efc7688b MH |
175 | conn->attempt++; |
176 | ||
b6a0dc82 | 177 | cp.handle = cpu_to_le16(handle); |
a8746417 | 178 | cp.pkt_type = cpu_to_le16(conn->pkt_type); |
b6a0dc82 MH |
179 | |
180 | cp.tx_bandwidth = cpu_to_le32(0x00001f40); | |
181 | cp.rx_bandwidth = cpu_to_le32(0x00001f40); | |
182 | cp.max_latency = cpu_to_le16(0xffff); | |
183 | cp.voice_setting = cpu_to_le16(hdev->voice_setting); | |
184 | cp.retrans_effort = 0xff; | |
185 | ||
186 | hci_send_cmd(hdev, HCI_OP_SETUP_SYNC_CONN, sizeof(cp), &cp); | |
187 | } | |
188 | ||
2ce603eb CT |
189 | void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, |
190 | u16 latency, u16 to_multiplier) | |
191 | { | |
192 | struct hci_cp_le_conn_update cp; | |
193 | struct hci_dev *hdev = conn->hdev; | |
194 | ||
195 | memset(&cp, 0, sizeof(cp)); | |
196 | ||
197 | cp.handle = cpu_to_le16(conn->handle); | |
198 | cp.conn_interval_min = cpu_to_le16(min); | |
199 | cp.conn_interval_max = cpu_to_le16(max); | |
200 | cp.conn_latency = cpu_to_le16(latency); | |
201 | cp.supervision_timeout = cpu_to_le16(to_multiplier); | |
202 | cp.min_ce_len = cpu_to_le16(0x0001); | |
203 | cp.max_ce_len = cpu_to_le16(0x0001); | |
204 | ||
205 | hci_send_cmd(hdev, HCI_OP_LE_CONN_UPDATE, sizeof(cp), &cp); | |
206 | } | |
207 | EXPORT_SYMBOL(hci_le_conn_update); | |
208 | ||
a7a595f6 VCG |
209 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], |
210 | __u8 ltk[16]) | |
211 | { | |
212 | struct hci_dev *hdev = conn->hdev; | |
213 | struct hci_cp_le_start_enc cp; | |
214 | ||
215 | BT_DBG("%p", conn); | |
216 | ||
217 | memset(&cp, 0, sizeof(cp)); | |
218 | ||
219 | cp.handle = cpu_to_le16(conn->handle); | |
220 | memcpy(cp.ltk, ltk, sizeof(cp.ltk)); | |
221 | cp.ediv = ediv; | |
51beabdf | 222 | memcpy(cp.rand, rand, sizeof(cp.rand)); |
a7a595f6 VCG |
223 | |
224 | hci_send_cmd(hdev, HCI_OP_LE_START_ENC, sizeof(cp), &cp); | |
225 | } | |
226 | EXPORT_SYMBOL(hci_le_start_enc); | |
227 | ||
228 | void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]) | |
229 | { | |
230 | struct hci_dev *hdev = conn->hdev; | |
231 | struct hci_cp_le_ltk_reply cp; | |
232 | ||
233 | BT_DBG("%p", conn); | |
234 | ||
235 | memset(&cp, 0, sizeof(cp)); | |
236 | ||
237 | cp.handle = cpu_to_le16(conn->handle); | |
238 | memcpy(cp.ltk, ltk, sizeof(ltk)); | |
239 | ||
240 | hci_send_cmd(hdev, HCI_OP_LE_LTK_REPLY, sizeof(cp), &cp); | |
241 | } | |
242 | EXPORT_SYMBOL(hci_le_ltk_reply); | |
243 | ||
244 | void hci_le_ltk_neg_reply(struct hci_conn *conn) | |
245 | { | |
246 | struct hci_dev *hdev = conn->hdev; | |
247 | struct hci_cp_le_ltk_neg_reply cp; | |
248 | ||
249 | BT_DBG("%p", conn); | |
250 | ||
251 | memset(&cp, 0, sizeof(cp)); | |
252 | ||
253 | cp.handle = cpu_to_le16(conn->handle); | |
254 | ||
255 | hci_send_cmd(hdev, HCI_OP_LE_LTK_NEG_REPLY, sizeof(cp), &cp); | |
256 | } | |
257 | ||
e73439d8 MH |
258 | /* Device _must_ be locked */ |
259 | void hci_sco_setup(struct hci_conn *conn, __u8 status) | |
260 | { | |
261 | struct hci_conn *sco = conn->link; | |
262 | ||
263 | BT_DBG("%p", conn); | |
264 | ||
265 | if (!sco) | |
266 | return; | |
267 | ||
268 | if (!status) { | |
269 | if (lmp_esco_capable(conn->hdev)) | |
270 | hci_setup_sync(sco, conn->handle); | |
271 | else | |
272 | hci_add_sco(sco, conn->handle); | |
273 | } else { | |
274 | hci_proto_connect_cfm(sco, status); | |
275 | hci_conn_del(sco); | |
276 | } | |
277 | } | |
278 | ||
19c40e3b | 279 | static void hci_conn_timeout(struct work_struct *work) |
1da177e4 | 280 | { |
19c40e3b GP |
281 | struct hci_conn *conn = container_of(work, struct hci_conn, |
282 | disc_work.work); | |
04837f64 | 283 | struct hci_dev *hdev = conn->hdev; |
2950f21a | 284 | __u8 reason; |
1da177e4 LT |
285 | |
286 | BT_DBG("conn %p state %d", conn, conn->state); | |
287 | ||
288 | if (atomic_read(&conn->refcnt)) | |
289 | return; | |
290 | ||
291 | hci_dev_lock(hdev); | |
6ac59344 MH |
292 | |
293 | switch (conn->state) { | |
294 | case BT_CONNECT: | |
769be974 | 295 | case BT_CONNECT2: |
fcd89c09 VT |
296 | if (conn->out) { |
297 | if (conn->type == ACL_LINK) | |
298 | hci_acl_connect_cancel(conn); | |
299 | else if (conn->type == LE_LINK) | |
300 | hci_le_connect_cancel(conn); | |
301 | } | |
6ac59344 | 302 | break; |
769be974 | 303 | case BT_CONFIG: |
8e87d142 | 304 | case BT_CONNECTED: |
2950f21a MH |
305 | reason = hci_proto_disconn_ind(conn); |
306 | hci_acl_disconn(conn, reason); | |
6ac59344 MH |
307 | break; |
308 | default: | |
1da177e4 | 309 | conn->state = BT_CLOSED; |
6ac59344 MH |
310 | break; |
311 | } | |
312 | ||
1da177e4 | 313 | hci_dev_unlock(hdev); |
1da177e4 LT |
314 | } |
315 | ||
416dc94b GP |
316 | /* Enter sniff mode */ |
317 | static void hci_conn_enter_sniff_mode(struct hci_conn *conn) | |
318 | { | |
319 | struct hci_dev *hdev = conn->hdev; | |
320 | ||
321 | BT_DBG("conn %p mode %d", conn, conn->mode); | |
322 | ||
323 | if (test_bit(HCI_RAW, &hdev->flags)) | |
324 | return; | |
325 | ||
326 | if (!lmp_sniff_capable(hdev) || !lmp_sniff_capable(conn)) | |
327 | return; | |
328 | ||
329 | if (conn->mode != HCI_CM_ACTIVE || !(conn->link_policy & HCI_LP_SNIFF)) | |
330 | return; | |
331 | ||
332 | if (lmp_sniffsubr_capable(hdev) && lmp_sniffsubr_capable(conn)) { | |
333 | struct hci_cp_sniff_subrate cp; | |
334 | cp.handle = cpu_to_le16(conn->handle); | |
335 | cp.max_latency = cpu_to_le16(0); | |
336 | cp.min_remote_timeout = cpu_to_le16(0); | |
337 | cp.min_local_timeout = cpu_to_le16(0); | |
338 | hci_send_cmd(hdev, HCI_OP_SNIFF_SUBRATE, sizeof(cp), &cp); | |
339 | } | |
340 | ||
51a8efd7 | 341 | if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) { |
416dc94b GP |
342 | struct hci_cp_sniff_mode cp; |
343 | cp.handle = cpu_to_le16(conn->handle); | |
344 | cp.max_interval = cpu_to_le16(hdev->sniff_max_interval); | |
345 | cp.min_interval = cpu_to_le16(hdev->sniff_min_interval); | |
346 | cp.attempt = cpu_to_le16(4); | |
347 | cp.timeout = cpu_to_le16(1); | |
348 | hci_send_cmd(hdev, HCI_OP_SNIFF_MODE, sizeof(cp), &cp); | |
349 | } | |
350 | } | |
351 | ||
04837f64 | 352 | static void hci_conn_idle(unsigned long arg) |
1da177e4 | 353 | { |
04837f64 MH |
354 | struct hci_conn *conn = (void *) arg; |
355 | ||
356 | BT_DBG("conn %p mode %d", conn, conn->mode); | |
357 | ||
358 | hci_conn_enter_sniff_mode(conn); | |
1da177e4 LT |
359 | } |
360 | ||
9f61656a JH |
361 | static void hci_conn_auto_accept(unsigned long arg) |
362 | { | |
363 | struct hci_conn *conn = (void *) arg; | |
364 | struct hci_dev *hdev = conn->hdev; | |
365 | ||
9f61656a JH |
366 | hci_send_cmd(hdev, HCI_OP_USER_CONFIRM_REPLY, sizeof(conn->dst), |
367 | &conn->dst); | |
9f61656a JH |
368 | } |
369 | ||
1da177e4 LT |
370 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst) |
371 | { | |
372 | struct hci_conn *conn; | |
373 | ||
374 | BT_DBG("%s dst %s", hdev->name, batostr(dst)); | |
375 | ||
cb601d7e | 376 | conn = kzalloc(sizeof(struct hci_conn), GFP_KERNEL); |
04837f64 | 377 | if (!conn) |
1da177e4 | 378 | return NULL; |
1da177e4 LT |
379 | |
380 | bacpy(&conn->dst, dst); | |
a8746417 MH |
381 | conn->hdev = hdev; |
382 | conn->type = type; | |
383 | conn->mode = HCI_CM_ACTIVE; | |
384 | conn->state = BT_OPEN; | |
93f19c9f | 385 | conn->auth_type = HCI_AT_GENERAL_BONDING; |
17fa4b9d | 386 | conn->io_capability = hdev->io_capability; |
a9583556 | 387 | conn->remote_auth = 0xff; |
13d39315 | 388 | conn->key_type = 0xff; |
1da177e4 | 389 | |
58a681ef | 390 | set_bit(HCI_CONN_POWER_SAVE, &conn->flags); |
052b30b0 | 391 | conn->disc_timeout = HCI_DISCONN_TIMEOUT; |
04837f64 | 392 | |
a8746417 MH |
393 | switch (type) { |
394 | case ACL_LINK: | |
395 | conn->pkt_type = hdev->pkt_type & ACL_PTYPE_MASK; | |
396 | break; | |
397 | case SCO_LINK: | |
398 | if (lmp_esco_capable(hdev)) | |
efc7688b MH |
399 | conn->pkt_type = (hdev->esco_type & SCO_ESCO_MASK) | |
400 | (hdev->esco_type & EDR_ESCO_MASK); | |
a8746417 MH |
401 | else |
402 | conn->pkt_type = hdev->pkt_type & SCO_PTYPE_MASK; | |
403 | break; | |
404 | case ESCO_LINK: | |
efc7688b | 405 | conn->pkt_type = hdev->esco_type & ~EDR_ESCO_MASK; |
a8746417 MH |
406 | break; |
407 | } | |
408 | ||
1da177e4 | 409 | skb_queue_head_init(&conn->data_q); |
04837f64 | 410 | |
2c33c06a | 411 | INIT_LIST_HEAD(&conn->chan_list);; |
73d80deb | 412 | |
19c40e3b | 413 | INIT_DELAYED_WORK(&conn->disc_work, hci_conn_timeout); |
b24b8a24 | 414 | setup_timer(&conn->idle_timer, hci_conn_idle, (unsigned long)conn); |
9f61656a JH |
415 | setup_timer(&conn->auto_accept_timer, hci_conn_auto_accept, |
416 | (unsigned long) conn); | |
1da177e4 LT |
417 | |
418 | atomic_set(&conn->refcnt, 0); | |
419 | ||
420 | hci_dev_hold(hdev); | |
421 | ||
1da177e4 | 422 | hci_conn_hash_add(hdev, conn); |
3c54711c | 423 | if (hdev->notify) |
1da177e4 LT |
424 | hdev->notify(hdev, HCI_NOTIFY_CONN_ADD); |
425 | ||
9eba32b8 MH |
426 | atomic_set(&conn->devref, 0); |
427 | ||
a67e899c MH |
428 | hci_conn_init_sysfs(conn); |
429 | ||
1da177e4 LT |
430 | return conn; |
431 | } | |
432 | ||
433 | int hci_conn_del(struct hci_conn *conn) | |
434 | { | |
435 | struct hci_dev *hdev = conn->hdev; | |
436 | ||
437 | BT_DBG("%s conn %p handle %d", hdev->name, conn, conn->handle); | |
438 | ||
04837f64 MH |
439 | del_timer(&conn->idle_timer); |
440 | ||
19c40e3b | 441 | cancel_delayed_work_sync(&conn->disc_work); |
1da177e4 | 442 | |
9f61656a JH |
443 | del_timer(&conn->auto_accept_timer); |
444 | ||
5b7f9909 | 445 | if (conn->type == ACL_LINK) { |
1da177e4 LT |
446 | struct hci_conn *sco = conn->link; |
447 | if (sco) | |
448 | sco->link = NULL; | |
449 | ||
450 | /* Unacked frames */ | |
451 | hdev->acl_cnt += conn->sent; | |
6ed58ec5 VT |
452 | } else if (conn->type == LE_LINK) { |
453 | if (hdev->le_pkts) | |
454 | hdev->le_cnt += conn->sent; | |
455 | else | |
456 | hdev->acl_cnt += conn->sent; | |
5b7f9909 MH |
457 | } else { |
458 | struct hci_conn *acl = conn->link; | |
459 | if (acl) { | |
460 | acl->link = NULL; | |
461 | hci_conn_put(acl); | |
462 | } | |
1da177e4 LT |
463 | } |
464 | ||
7d0db0a3 | 465 | |
2c33c06a | 466 | hci_chan_list_flush(conn); |
73d80deb | 467 | |
1da177e4 | 468 | hci_conn_hash_del(hdev, conn); |
3c54711c | 469 | if (hdev->notify) |
1da177e4 | 470 | hdev->notify(hdev, HCI_NOTIFY_CONN_DEL); |
7d0db0a3 | 471 | |
1da177e4 | 472 | skb_queue_purge(&conn->data_q); |
1da177e4 | 473 | |
9eba32b8 | 474 | hci_conn_put_device(conn); |
2ae9a6be | 475 | |
384943ec MH |
476 | hci_dev_put(hdev); |
477 | ||
163f4dab TT |
478 | if (conn->handle == 0) |
479 | kfree(conn); | |
480 | ||
1da177e4 LT |
481 | return 0; |
482 | } | |
483 | ||
484 | struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src) | |
485 | { | |
486 | int use_src = bacmp(src, BDADDR_ANY); | |
8035ded4 | 487 | struct hci_dev *hdev = NULL, *d; |
1da177e4 LT |
488 | |
489 | BT_DBG("%s -> %s", batostr(src), batostr(dst)); | |
490 | ||
f20d09d5 | 491 | read_lock(&hci_dev_list_lock); |
1da177e4 | 492 | |
8035ded4 | 493 | list_for_each_entry(d, &hci_dev_list, list) { |
1da177e4 LT |
494 | if (!test_bit(HCI_UP, &d->flags) || test_bit(HCI_RAW, &d->flags)) |
495 | continue; | |
496 | ||
8e87d142 | 497 | /* Simple routing: |
1da177e4 LT |
498 | * No source address - find interface with bdaddr != dst |
499 | * Source address - find interface with bdaddr == src | |
500 | */ | |
501 | ||
502 | if (use_src) { | |
503 | if (!bacmp(&d->bdaddr, src)) { | |
504 | hdev = d; break; | |
505 | } | |
506 | } else { | |
507 | if (bacmp(&d->bdaddr, dst)) { | |
508 | hdev = d; break; | |
509 | } | |
510 | } | |
511 | } | |
512 | ||
513 | if (hdev) | |
514 | hdev = hci_dev_hold(hdev); | |
515 | ||
f20d09d5 | 516 | read_unlock(&hci_dev_list_lock); |
1da177e4 LT |
517 | return hdev; |
518 | } | |
519 | EXPORT_SYMBOL(hci_get_route); | |
520 | ||
fcd89c09 | 521 | /* Create SCO, ACL or LE connection. |
1da177e4 | 522 | * Device _must_ be locked */ |
8c1b2355 | 523 | struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type) |
1da177e4 LT |
524 | { |
525 | struct hci_conn *acl; | |
5b7f9909 | 526 | struct hci_conn *sco; |
fcd89c09 | 527 | struct hci_conn *le; |
1da177e4 LT |
528 | |
529 | BT_DBG("%s dst %s", hdev->name, batostr(dst)); | |
530 | ||
fcd89c09 | 531 | if (type == LE_LINK) { |
eda42b50 AG |
532 | struct adv_entry *entry; |
533 | ||
fcd89c09 | 534 | le = hci_conn_hash_lookup_ba(hdev, LE_LINK, dst); |
15c4794f | 535 | if (le) |
30e76272 | 536 | return ERR_PTR(-EBUSY); |
eda42b50 AG |
537 | |
538 | entry = hci_find_adv_entry(hdev, dst); | |
539 | if (!entry) | |
540 | return ERR_PTR(-EHOSTUNREACH); | |
541 | ||
15c4794f | 542 | le = hci_conn_add(hdev, LE_LINK, dst); |
fcd89c09 | 543 | if (!le) |
30e76272 | 544 | return ERR_PTR(-ENOMEM); |
893d6751 | 545 | |
eda42b50 AG |
546 | le->dst_type = entry->bdaddr_type; |
547 | ||
893d6751 | 548 | hci_le_connect(le); |
fcd89c09 VT |
549 | |
550 | hci_conn_hold(le); | |
551 | ||
552 | return le; | |
553 | } | |
554 | ||
70f23020 AE |
555 | acl = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst); |
556 | if (!acl) { | |
557 | acl = hci_conn_add(hdev, ACL_LINK, dst); | |
558 | if (!acl) | |
1da177e4 LT |
559 | return NULL; |
560 | } | |
561 | ||
562 | hci_conn_hold(acl); | |
563 | ||
09ab6f4c | 564 | if (acl->state == BT_OPEN || acl->state == BT_CLOSED) { |
765c2a96 JH |
565 | acl->sec_level = BT_SECURITY_LOW; |
566 | acl->pending_sec_level = sec_level; | |
09ab6f4c | 567 | acl->auth_type = auth_type; |
1da177e4 | 568 | hci_acl_connect(acl); |
09ab6f4c | 569 | } |
1da177e4 | 570 | |
5b7f9909 MH |
571 | if (type == ACL_LINK) |
572 | return acl; | |
1da177e4 | 573 | |
70f23020 AE |
574 | sco = hci_conn_hash_lookup_ba(hdev, type, dst); |
575 | if (!sco) { | |
576 | sco = hci_conn_add(hdev, type, dst); | |
577 | if (!sco) { | |
5b7f9909 MH |
578 | hci_conn_put(acl); |
579 | return NULL; | |
1da177e4 | 580 | } |
5b7f9909 | 581 | } |
1da177e4 | 582 | |
5b7f9909 MH |
583 | acl->link = sco; |
584 | sco->link = acl; | |
1da177e4 | 585 | |
5b7f9909 | 586 | hci_conn_hold(sco); |
1da177e4 | 587 | |
5b7f9909 | 588 | if (acl->state == BT_CONNECTED && |
b6a0dc82 | 589 | (sco->state == BT_OPEN || sco->state == BT_CLOSED)) { |
58a681ef | 590 | set_bit(HCI_CONN_POWER_SAVE, &acl->flags); |
14b12d0b | 591 | hci_conn_enter_active_mode(acl, BT_POWER_FORCE_ACTIVE_ON); |
c390216b | 592 | |
51a8efd7 | 593 | if (test_bit(HCI_CONN_MODE_CHANGE_PEND, &acl->flags)) { |
e73439d8 | 594 | /* defer SCO setup until mode change completed */ |
51a8efd7 | 595 | set_bit(HCI_CONN_SCO_SETUP_PEND, &acl->flags); |
e73439d8 MH |
596 | return sco; |
597 | } | |
598 | ||
599 | hci_sco_setup(acl, 0x00); | |
b6a0dc82 | 600 | } |
5b7f9909 MH |
601 | |
602 | return sco; | |
1da177e4 LT |
603 | } |
604 | EXPORT_SYMBOL(hci_connect); | |
605 | ||
e7c29cb1 MH |
606 | /* Check link security requirement */ |
607 | int hci_conn_check_link_mode(struct hci_conn *conn) | |
608 | { | |
609 | BT_DBG("conn %p", conn); | |
610 | ||
aa64a8b5 | 611 | if (hci_conn_ssp_enabled(conn) && !(conn->link_mode & HCI_LM_ENCRYPT)) |
e7c29cb1 MH |
612 | return 0; |
613 | ||
614 | return 1; | |
615 | } | |
616 | EXPORT_SYMBOL(hci_conn_check_link_mode); | |
617 | ||
1da177e4 | 618 | /* Authenticate remote device */ |
0684e5f9 | 619 | static int hci_conn_auth(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) |
1da177e4 LT |
620 | { |
621 | BT_DBG("conn %p", conn); | |
622 | ||
765c2a96 JH |
623 | if (conn->pending_sec_level > sec_level) |
624 | sec_level = conn->pending_sec_level; | |
625 | ||
96a31833 | 626 | if (sec_level > conn->sec_level) |
765c2a96 | 627 | conn->pending_sec_level = sec_level; |
96a31833 | 628 | else if (conn->link_mode & HCI_LM_AUTH) |
1da177e4 LT |
629 | return 1; |
630 | ||
65cf686e JH |
631 | /* Make sure we preserve an existing MITM requirement*/ |
632 | auth_type |= (conn->auth_type & 0x01); | |
633 | ||
96a31833 MH |
634 | conn->auth_type = auth_type; |
635 | ||
51a8efd7 | 636 | if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { |
1da177e4 | 637 | struct hci_cp_auth_requested cp; |
aca3192c | 638 | cp.handle = cpu_to_le16(conn->handle); |
40be492f MH |
639 | hci_send_cmd(conn->hdev, HCI_OP_AUTH_REQUESTED, |
640 | sizeof(cp), &cp); | |
19f8def0 | 641 | if (conn->key_type != 0xff) |
51a8efd7 | 642 | set_bit(HCI_CONN_REAUTH_PEND, &conn->flags); |
1da177e4 | 643 | } |
8c1b2355 | 644 | |
1da177e4 LT |
645 | return 0; |
646 | } | |
1da177e4 | 647 | |
13d39315 WR |
648 | /* Encrypt the the link */ |
649 | static void hci_conn_encrypt(struct hci_conn *conn) | |
650 | { | |
651 | BT_DBG("conn %p", conn); | |
652 | ||
51a8efd7 | 653 | if (!test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) { |
13d39315 WR |
654 | struct hci_cp_set_conn_encrypt cp; |
655 | cp.handle = cpu_to_le16(conn->handle); | |
656 | cp.encrypt = 0x01; | |
657 | hci_send_cmd(conn->hdev, HCI_OP_SET_CONN_ENCRYPT, sizeof(cp), | |
658 | &cp); | |
659 | } | |
660 | } | |
661 | ||
8c1b2355 | 662 | /* Enable security */ |
0684e5f9 | 663 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type) |
1da177e4 LT |
664 | { |
665 | BT_DBG("conn %p", conn); | |
666 | ||
13d39315 | 667 | /* For sdp we don't need the link key. */ |
8c1b2355 MH |
668 | if (sec_level == BT_SECURITY_SDP) |
669 | return 1; | |
670 | ||
13d39315 WR |
671 | /* For non 2.1 devices and low security level we don't need the link |
672 | key. */ | |
aa64a8b5 | 673 | if (sec_level == BT_SECURITY_LOW && !hci_conn_ssp_enabled(conn)) |
3fdca1e1 | 674 | return 1; |
8c1b2355 | 675 | |
13d39315 WR |
676 | /* For other security levels we need the link key. */ |
677 | if (!(conn->link_mode & HCI_LM_AUTH)) | |
678 | goto auth; | |
679 | ||
680 | /* An authenticated combination key has sufficient security for any | |
681 | security level. */ | |
682 | if (conn->key_type == HCI_LK_AUTH_COMBINATION) | |
683 | goto encrypt; | |
684 | ||
685 | /* An unauthenticated combination key has sufficient security for | |
686 | security level 1 and 2. */ | |
687 | if (conn->key_type == HCI_LK_UNAUTH_COMBINATION && | |
688 | (sec_level == BT_SECURITY_MEDIUM || | |
689 | sec_level == BT_SECURITY_LOW)) | |
690 | goto encrypt; | |
691 | ||
692 | /* A combination key has always sufficient security for the security | |
693 | levels 1 or 2. High security level requires the combination key | |
694 | is generated using maximum PIN code length (16). | |
695 | For pre 2.1 units. */ | |
696 | if (conn->key_type == HCI_LK_COMBINATION && | |
697 | (sec_level != BT_SECURITY_HIGH || | |
698 | conn->pin_length == 16)) | |
699 | goto encrypt; | |
700 | ||
701 | auth: | |
51a8efd7 | 702 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
1da177e4 LT |
703 | return 0; |
704 | ||
6fdf658c LAD |
705 | if (!hci_conn_auth(conn, sec_level, auth_type)) |
706 | return 0; | |
13d39315 WR |
707 | |
708 | encrypt: | |
709 | if (conn->link_mode & HCI_LM_ENCRYPT) | |
710 | return 1; | |
8c1b2355 | 711 | |
13d39315 | 712 | hci_conn_encrypt(conn); |
1da177e4 LT |
713 | return 0; |
714 | } | |
8c1b2355 | 715 | EXPORT_SYMBOL(hci_conn_security); |
1da177e4 | 716 | |
b3b1b061 WR |
717 | /* Check secure link requirement */ |
718 | int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level) | |
719 | { | |
720 | BT_DBG("conn %p", conn); | |
721 | ||
722 | if (sec_level != BT_SECURITY_HIGH) | |
723 | return 1; /* Accept if non-secure is required */ | |
724 | ||
ef4177e2 | 725 | if (conn->sec_level == BT_SECURITY_HIGH) |
b3b1b061 WR |
726 | return 1; |
727 | ||
728 | return 0; /* Reject not secure link */ | |
729 | } | |
730 | EXPORT_SYMBOL(hci_conn_check_secure); | |
731 | ||
1da177e4 LT |
732 | /* Change link key */ |
733 | int hci_conn_change_link_key(struct hci_conn *conn) | |
734 | { | |
735 | BT_DBG("conn %p", conn); | |
736 | ||
51a8efd7 | 737 | if (!test_and_set_bit(HCI_CONN_AUTH_PEND, &conn->flags)) { |
1da177e4 | 738 | struct hci_cp_change_conn_link_key cp; |
aca3192c | 739 | cp.handle = cpu_to_le16(conn->handle); |
40be492f MH |
740 | hci_send_cmd(conn->hdev, HCI_OP_CHANGE_CONN_LINK_KEY, |
741 | sizeof(cp), &cp); | |
1da177e4 | 742 | } |
8c1b2355 | 743 | |
1da177e4 LT |
744 | return 0; |
745 | } | |
746 | EXPORT_SYMBOL(hci_conn_change_link_key); | |
747 | ||
748 | /* Switch role */ | |
8c1b2355 | 749 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role) |
1da177e4 LT |
750 | { |
751 | BT_DBG("conn %p", conn); | |
752 | ||
753 | if (!role && conn->link_mode & HCI_LM_MASTER) | |
754 | return 1; | |
755 | ||
51a8efd7 | 756 | if (!test_and_set_bit(HCI_CONN_RSWITCH_PEND, &conn->flags)) { |
1da177e4 LT |
757 | struct hci_cp_switch_role cp; |
758 | bacpy(&cp.bdaddr, &conn->dst); | |
759 | cp.role = role; | |
a9de9248 | 760 | hci_send_cmd(conn->hdev, HCI_OP_SWITCH_ROLE, sizeof(cp), &cp); |
1da177e4 | 761 | } |
8c1b2355 | 762 | |
1da177e4 LT |
763 | return 0; |
764 | } | |
765 | EXPORT_SYMBOL(hci_conn_switch_role); | |
766 | ||
04837f64 | 767 | /* Enter active mode */ |
14b12d0b | 768 | void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active) |
04837f64 MH |
769 | { |
770 | struct hci_dev *hdev = conn->hdev; | |
771 | ||
772 | BT_DBG("conn %p mode %d", conn, conn->mode); | |
773 | ||
774 | if (test_bit(HCI_RAW, &hdev->flags)) | |
775 | return; | |
776 | ||
14b12d0b JG |
777 | if (conn->mode != HCI_CM_SNIFF) |
778 | goto timer; | |
779 | ||
58a681ef | 780 | if (!test_bit(HCI_CONN_POWER_SAVE, &conn->flags) && !force_active) |
04837f64 MH |
781 | goto timer; |
782 | ||
51a8efd7 | 783 | if (!test_and_set_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->flags)) { |
04837f64 | 784 | struct hci_cp_exit_sniff_mode cp; |
aca3192c | 785 | cp.handle = cpu_to_le16(conn->handle); |
a9de9248 | 786 | hci_send_cmd(hdev, HCI_OP_EXIT_SNIFF_MODE, sizeof(cp), &cp); |
04837f64 MH |
787 | } |
788 | ||
789 | timer: | |
790 | if (hdev->idle_timeout > 0) | |
791 | mod_timer(&conn->idle_timer, | |
792 | jiffies + msecs_to_jiffies(hdev->idle_timeout)); | |
793 | } | |
794 | ||
1da177e4 LT |
795 | /* Drop all connection on the device */ |
796 | void hci_conn_hash_flush(struct hci_dev *hdev) | |
797 | { | |
798 | struct hci_conn_hash *h = &hdev->conn_hash; | |
3e9c40a6 | 799 | struct hci_conn *c; |
1da177e4 LT |
800 | |
801 | BT_DBG("hdev %s", hdev->name); | |
802 | ||
bf4c6325 | 803 | list_for_each_entry_rcu(c, &h->list, list) { |
1da177e4 LT |
804 | c->state = BT_CLOSED; |
805 | ||
9f5a0d7b | 806 | hci_proto_disconn_cfm(c, HCI_ERROR_LOCAL_HOST_TERM); |
1da177e4 LT |
807 | hci_conn_del(c); |
808 | } | |
809 | } | |
810 | ||
a9de9248 MH |
811 | /* Check pending connect attempts */ |
812 | void hci_conn_check_pending(struct hci_dev *hdev) | |
813 | { | |
814 | struct hci_conn *conn; | |
815 | ||
816 | BT_DBG("hdev %s", hdev->name); | |
817 | ||
818 | hci_dev_lock(hdev); | |
819 | ||
820 | conn = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2); | |
821 | if (conn) | |
822 | hci_acl_connect(conn); | |
823 | ||
824 | hci_dev_unlock(hdev); | |
825 | } | |
826 | ||
9eba32b8 MH |
827 | void hci_conn_hold_device(struct hci_conn *conn) |
828 | { | |
829 | atomic_inc(&conn->devref); | |
830 | } | |
831 | EXPORT_SYMBOL(hci_conn_hold_device); | |
832 | ||
833 | void hci_conn_put_device(struct hci_conn *conn) | |
834 | { | |
835 | if (atomic_dec_and_test(&conn->devref)) | |
836 | hci_conn_del_sysfs(conn); | |
837 | } | |
838 | EXPORT_SYMBOL(hci_conn_put_device); | |
839 | ||
1da177e4 LT |
840 | int hci_get_conn_list(void __user *arg) |
841 | { | |
8035ded4 | 842 | register struct hci_conn *c; |
1da177e4 LT |
843 | struct hci_conn_list_req req, *cl; |
844 | struct hci_conn_info *ci; | |
845 | struct hci_dev *hdev; | |
1da177e4 LT |
846 | int n = 0, size, err; |
847 | ||
848 | if (copy_from_user(&req, arg, sizeof(req))) | |
849 | return -EFAULT; | |
850 | ||
851 | if (!req.conn_num || req.conn_num > (PAGE_SIZE * 2) / sizeof(*ci)) | |
852 | return -EINVAL; | |
853 | ||
854 | size = sizeof(req) + req.conn_num * sizeof(*ci); | |
855 | ||
70f23020 AE |
856 | cl = kmalloc(size, GFP_KERNEL); |
857 | if (!cl) | |
1da177e4 LT |
858 | return -ENOMEM; |
859 | ||
70f23020 AE |
860 | hdev = hci_dev_get(req.dev_id); |
861 | if (!hdev) { | |
1da177e4 LT |
862 | kfree(cl); |
863 | return -ENODEV; | |
864 | } | |
865 | ||
866 | ci = cl->conn_info; | |
867 | ||
09fd0de5 | 868 | hci_dev_lock(hdev); |
8035ded4 | 869 | list_for_each_entry(c, &hdev->conn_hash.list, list) { |
1da177e4 LT |
870 | bacpy(&(ci + n)->bdaddr, &c->dst); |
871 | (ci + n)->handle = c->handle; | |
872 | (ci + n)->type = c->type; | |
873 | (ci + n)->out = c->out; | |
874 | (ci + n)->state = c->state; | |
875 | (ci + n)->link_mode = c->link_mode; | |
876 | if (++n >= req.conn_num) | |
877 | break; | |
878 | } | |
09fd0de5 | 879 | hci_dev_unlock(hdev); |
1da177e4 LT |
880 | |
881 | cl->dev_id = hdev->id; | |
882 | cl->conn_num = n; | |
883 | size = sizeof(req) + n * sizeof(*ci); | |
884 | ||
885 | hci_dev_put(hdev); | |
886 | ||
887 | err = copy_to_user(arg, cl, size); | |
888 | kfree(cl); | |
889 | ||
890 | return err ? -EFAULT : 0; | |
891 | } | |
892 | ||
893 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg) | |
894 | { | |
895 | struct hci_conn_info_req req; | |
896 | struct hci_conn_info ci; | |
897 | struct hci_conn *conn; | |
898 | char __user *ptr = arg + sizeof(req); | |
899 | ||
900 | if (copy_from_user(&req, arg, sizeof(req))) | |
901 | return -EFAULT; | |
902 | ||
09fd0de5 | 903 | hci_dev_lock(hdev); |
1da177e4 LT |
904 | conn = hci_conn_hash_lookup_ba(hdev, req.type, &req.bdaddr); |
905 | if (conn) { | |
906 | bacpy(&ci.bdaddr, &conn->dst); | |
907 | ci.handle = conn->handle; | |
908 | ci.type = conn->type; | |
909 | ci.out = conn->out; | |
910 | ci.state = conn->state; | |
911 | ci.link_mode = conn->link_mode; | |
912 | } | |
09fd0de5 | 913 | hci_dev_unlock(hdev); |
1da177e4 LT |
914 | |
915 | if (!conn) | |
916 | return -ENOENT; | |
917 | ||
918 | return copy_to_user(ptr, &ci, sizeof(ci)) ? -EFAULT : 0; | |
919 | } | |
40be492f MH |
920 | |
921 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg) | |
922 | { | |
923 | struct hci_auth_info_req req; | |
924 | struct hci_conn *conn; | |
925 | ||
926 | if (copy_from_user(&req, arg, sizeof(req))) | |
927 | return -EFAULT; | |
928 | ||
09fd0de5 | 929 | hci_dev_lock(hdev); |
40be492f MH |
930 | conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &req.bdaddr); |
931 | if (conn) | |
932 | req.type = conn->auth_type; | |
09fd0de5 | 933 | hci_dev_unlock(hdev); |
40be492f MH |
934 | |
935 | if (!conn) | |
936 | return -ENOENT; | |
937 | ||
938 | return copy_to_user(arg, &req, sizeof(req)) ? -EFAULT : 0; | |
939 | } | |
73d80deb LAD |
940 | |
941 | struct hci_chan *hci_chan_create(struct hci_conn *conn) | |
942 | { | |
943 | struct hci_dev *hdev = conn->hdev; | |
944 | struct hci_chan *chan; | |
945 | ||
946 | BT_DBG("%s conn %p", hdev->name, conn); | |
947 | ||
948 | chan = kzalloc(sizeof(struct hci_chan), GFP_ATOMIC); | |
949 | if (!chan) | |
950 | return NULL; | |
951 | ||
952 | chan->conn = conn; | |
953 | skb_queue_head_init(&chan->data_q); | |
954 | ||
8192edef | 955 | list_add_rcu(&chan->list, &conn->chan_list); |
73d80deb LAD |
956 | |
957 | return chan; | |
958 | } | |
959 | ||
960 | int hci_chan_del(struct hci_chan *chan) | |
961 | { | |
962 | struct hci_conn *conn = chan->conn; | |
963 | struct hci_dev *hdev = conn->hdev; | |
964 | ||
965 | BT_DBG("%s conn %p chan %p", hdev->name, conn, chan); | |
966 | ||
8192edef GP |
967 | list_del_rcu(&chan->list); |
968 | ||
969 | synchronize_rcu(); | |
73d80deb LAD |
970 | |
971 | skb_queue_purge(&chan->data_q); | |
972 | kfree(chan); | |
973 | ||
974 | return 0; | |
975 | } | |
976 | ||
2c33c06a | 977 | void hci_chan_list_flush(struct hci_conn *conn) |
73d80deb | 978 | { |
8192edef | 979 | struct hci_chan *chan; |
73d80deb LAD |
980 | |
981 | BT_DBG("conn %p", conn); | |
982 | ||
8192edef | 983 | list_for_each_entry_rcu(chan, &conn->chan_list, list) |
73d80deb LAD |
984 | hci_chan_del(chan); |
985 | } |