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Commit | Line | Data |
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04fafe4e | 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 | |
04fafe4e RS |
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 | ||
04fafe4e RS |
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 | #ifndef __HCI_CORE_H | |
26 | #define __HCI_CORE_H | |
27 | ||
1da177e4 LT |
28 | #include <net/bluetooth/hci.h> |
29 | ||
5e59b791 LAD |
30 | /* HCI priority */ |
31 | #define HCI_PRIO_MAX 7 | |
32 | ||
1da177e4 | 33 | /* HCI Core structures */ |
1da177e4 LT |
34 | struct inquiry_data { |
35 | bdaddr_t bdaddr; | |
36 | __u8 pscan_rep_mode; | |
37 | __u8 pscan_period_mode; | |
38 | __u8 pscan_mode; | |
39 | __u8 dev_class[3]; | |
1ebb9252 | 40 | __le16 clock_offset; |
1da177e4 | 41 | __s8 rssi; |
41a96212 | 42 | __u8 ssp_mode; |
1da177e4 LT |
43 | }; |
44 | ||
45 | struct inquiry_entry { | |
561aafbc JH |
46 | struct list_head all; /* inq_cache.all */ |
47 | struct list_head list; /* unknown or resolve */ | |
48 | enum { | |
49 | NAME_NOT_KNOWN, | |
50 | NAME_NEEDED, | |
51 | NAME_PENDING, | |
52 | NAME_KNOWN, | |
53 | } name_state; | |
1da177e4 LT |
54 | __u32 timestamp; |
55 | struct inquiry_data data; | |
56 | }; | |
57 | ||
30883512 | 58 | struct discovery_state { |
f64b993f | 59 | int type; |
ff9ef578 JH |
60 | enum { |
61 | DISCOVERY_STOPPED, | |
62 | DISCOVERY_STARTING, | |
343f935b | 63 | DISCOVERY_FINDING, |
30dc78e1 | 64 | DISCOVERY_RESOLVING, |
ff9ef578 JH |
65 | DISCOVERY_STOPPING, |
66 | } state; | |
c3c7ea65 | 67 | struct list_head all; /* All devices found during inquiry */ |
f64b993f GP |
68 | struct list_head unknown; /* Name state not known */ |
69 | struct list_head resolve; /* Name needs to be resolved */ | |
70 | __u32 timestamp; | |
1da177e4 LT |
71 | }; |
72 | ||
73 | struct hci_conn_hash { | |
74 | struct list_head list; | |
1da177e4 LT |
75 | unsigned int acl_num; |
76 | unsigned int sco_num; | |
fcd89c09 | 77 | unsigned int le_num; |
1da177e4 LT |
78 | }; |
79 | ||
f0358568 JH |
80 | struct bdaddr_list { |
81 | struct list_head list; | |
82 | bdaddr_t bdaddr; | |
83 | }; | |
2aeb9a1a JH |
84 | |
85 | struct bt_uuid { | |
86 | struct list_head list; | |
87 | u8 uuid[16]; | |
1aff6f09 | 88 | u8 svc_hint; |
2aeb9a1a JH |
89 | }; |
90 | ||
b899efaf VCG |
91 | struct smp_ltk { |
92 | struct list_head list; | |
93 | bdaddr_t bdaddr; | |
94 | u8 bdaddr_type; | |
95 | u8 authenticated; | |
96 | u8 type; | |
97 | u8 enc_size; | |
98 | __le16 ediv; | |
99 | u8 rand[8]; | |
100 | u8 val[16]; | |
101 | } __packed; | |
102 | ||
55ed8ca1 JH |
103 | struct link_key { |
104 | struct list_head list; | |
105 | bdaddr_t bdaddr; | |
106 | u8 type; | |
9b3b4460 | 107 | u8 val[HCI_LINK_KEY_SIZE]; |
55ed8ca1 JH |
108 | u8 pin_len; |
109 | }; | |
110 | ||
2763eda6 SJ |
111 | struct oob_data { |
112 | struct list_head list; | |
113 | bdaddr_t bdaddr; | |
114 | u8 hash[16]; | |
115 | u8 randomizer[16]; | |
116 | }; | |
117 | ||
7ba8b4be AG |
118 | struct le_scan_params { |
119 | u8 type; | |
120 | u16 interval; | |
121 | u16 window; | |
28b75a89 | 122 | int timeout; |
7ba8b4be AG |
123 | }; |
124 | ||
490c5bab JH |
125 | #define HCI_MAX_SHORT_NAME_LENGTH 10 |
126 | ||
cd4c5391 | 127 | #define NUM_REASSEMBLY 4 |
1da177e4 LT |
128 | struct hci_dev { |
129 | struct list_head list; | |
09fd0de5 | 130 | struct mutex lock; |
1da177e4 LT |
131 | |
132 | char name[8]; | |
133 | unsigned long flags; | |
134 | __u16 id; | |
c13854ce | 135 | __u8 bus; |
943da25d | 136 | __u8 dev_type; |
1da177e4 | 137 | bdaddr_t bdaddr; |
1f6c6378 | 138 | __u8 dev_name[HCI_MAX_NAME_LENGTH]; |
490c5bab | 139 | __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; |
80a1e1db | 140 | __u8 eir[HCI_MAX_EIR_LENGTH]; |
a9de9248 | 141 | __u8 dev_class[3]; |
1aff6f09 JH |
142 | __u8 major_class; |
143 | __u8 minor_class; | |
1da177e4 | 144 | __u8 features[8]; |
59e29406 | 145 | __u8 host_features[8]; |
a9de9248 | 146 | __u8 commands[64]; |
1143e5a6 MH |
147 | __u8 hci_ver; |
148 | __u16 hci_rev; | |
d5859e22 | 149 | __u8 lmp_ver; |
1143e5a6 | 150 | __u16 manufacturer; |
7d69230c | 151 | __u16 lmp_subver; |
1da177e4 | 152 | __u16 voice_setting; |
17fa4b9d | 153 | __u8 io_capability; |
91c4e9b1 | 154 | __s8 inq_tx_power; |
2b9be137 MH |
155 | __u16 devid_source; |
156 | __u16 devid_vendor; | |
157 | __u16 devid_product; | |
158 | __u16 devid_version; | |
1da177e4 LT |
159 | |
160 | __u16 pkt_type; | |
5b7f9909 | 161 | __u16 esco_type; |
1da177e4 LT |
162 | __u16 link_policy; |
163 | __u16 link_mode; | |
164 | ||
04837f64 MH |
165 | __u32 idle_timeout; |
166 | __u16 sniff_min_interval; | |
167 | __u16 sniff_max_interval; | |
168 | ||
928abaa7 AE |
169 | __u8 amp_status; |
170 | __u32 amp_total_bw; | |
171 | __u32 amp_max_bw; | |
172 | __u32 amp_min_latency; | |
173 | __u32 amp_max_pdu; | |
174 | __u8 amp_type; | |
175 | __u16 amp_pal_cap; | |
176 | __u16 amp_assoc_size; | |
177 | __u32 amp_max_flush_to; | |
178 | __u32 amp_be_flush_to; | |
179 | ||
1e89cffb AE |
180 | __u8 flow_ctl_mode; |
181 | ||
9f61656a JH |
182 | unsigned int auto_accept_delay; |
183 | ||
1da177e4 LT |
184 | unsigned long quirks; |
185 | ||
186 | atomic_t cmd_cnt; | |
187 | unsigned int acl_cnt; | |
188 | unsigned int sco_cnt; | |
6ed58ec5 | 189 | unsigned int le_cnt; |
1da177e4 LT |
190 | |
191 | unsigned int acl_mtu; | |
192 | unsigned int sco_mtu; | |
6ed58ec5 | 193 | unsigned int le_mtu; |
1da177e4 LT |
194 | unsigned int acl_pkts; |
195 | unsigned int sco_pkts; | |
6ed58ec5 | 196 | unsigned int le_pkts; |
1da177e4 | 197 | |
350ee4cf AE |
198 | __u16 block_len; |
199 | __u16 block_mtu; | |
200 | __u16 num_blocks; | |
201 | __u16 block_cnt; | |
202 | ||
1da177e4 LT |
203 | unsigned long acl_last_tx; |
204 | unsigned long sco_last_tx; | |
6ed58ec5 | 205 | unsigned long le_last_tx; |
1da177e4 | 206 | |
f48fd9c8 MH |
207 | struct workqueue_struct *workqueue; |
208 | ||
ab81cbf9 | 209 | struct work_struct power_on; |
3243553f | 210 | struct delayed_work power_off; |
ab81cbf9 | 211 | |
16ab91ab JH |
212 | __u16 discov_timeout; |
213 | struct delayed_work discov_off; | |
214 | ||
7d78525d JH |
215 | struct delayed_work service_cache; |
216 | ||
6bd32326 | 217 | struct timer_list cmd_timer; |
b78752cc MH |
218 | |
219 | struct work_struct rx_work; | |
c347b765 | 220 | struct work_struct cmd_work; |
3eff45ea | 221 | struct work_struct tx_work; |
1da177e4 LT |
222 | |
223 | struct sk_buff_head rx_q; | |
224 | struct sk_buff_head raw_q; | |
225 | struct sk_buff_head cmd_q; | |
226 | ||
227 | struct sk_buff *sent_cmd; | |
cd4c5391 | 228 | struct sk_buff *reassembly[NUM_REASSEMBLY]; |
1da177e4 | 229 | |
a6a67efd | 230 | struct mutex req_lock; |
1da177e4 LT |
231 | wait_queue_head_t req_wait_q; |
232 | __u32 req_status; | |
233 | __u32 req_result; | |
a5040efa JH |
234 | |
235 | __u16 init_last_cmd; | |
1da177e4 | 236 | |
2e58ef3e JH |
237 | struct list_head mgmt_pending; |
238 | ||
30883512 | 239 | struct discovery_state discovery; |
1da177e4 | 240 | struct hci_conn_hash conn_hash; |
ea4bd8ba | 241 | struct list_head blacklist; |
1da177e4 | 242 | |
2aeb9a1a JH |
243 | struct list_head uuids; |
244 | ||
55ed8ca1 JH |
245 | struct list_head link_keys; |
246 | ||
b899efaf VCG |
247 | struct list_head long_term_keys; |
248 | ||
2763eda6 SJ |
249 | struct list_head remote_oob_data; |
250 | ||
1da177e4 LT |
251 | struct hci_dev_stats stat; |
252 | ||
253 | struct sk_buff_head driver_init; | |
254 | ||
1da177e4 LT |
255 | void *core_data; |
256 | ||
70f23020 | 257 | atomic_t promisc; |
1da177e4 | 258 | |
ca325f69 MH |
259 | struct dentry *debugfs; |
260 | ||
a91f2e39 | 261 | struct device dev; |
1da177e4 | 262 | |
611b30f7 MH |
263 | struct rfkill *rfkill; |
264 | ||
d23264a8 AG |
265 | unsigned long dev_flags; |
266 | ||
7ba8b4be AG |
267 | struct delayed_work le_scan_disable; |
268 | ||
28b75a89 AG |
269 | struct work_struct le_scan; |
270 | struct le_scan_params le_scan_params; | |
271 | ||
1da177e4 LT |
272 | int (*open)(struct hci_dev *hdev); |
273 | int (*close)(struct hci_dev *hdev); | |
274 | int (*flush)(struct hci_dev *hdev); | |
275 | int (*send)(struct sk_buff *skb); | |
1da177e4 LT |
276 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
277 | int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); | |
278 | }; | |
279 | ||
280 | struct hci_conn { | |
281 | struct list_head list; | |
282 | ||
adc4266d | 283 | atomic_t refcnt; |
adc4266d SJ |
284 | |
285 | bdaddr_t dst; | |
5a9d0a3f | 286 | __u8 dst_type; |
adc4266d SJ |
287 | __u16 handle; |
288 | __u16 state; | |
289 | __u8 mode; | |
290 | __u8 type; | |
a0c808b3 | 291 | bool out; |
adc4266d SJ |
292 | __u8 attempt; |
293 | __u8 dev_class[3]; | |
294 | __u8 features[8]; | |
adc4266d SJ |
295 | __u16 interval; |
296 | __u16 pkt_type; | |
297 | __u16 link_policy; | |
298 | __u32 link_mode; | |
13d39315 | 299 | __u8 key_type; |
adc4266d SJ |
300 | __u8 auth_type; |
301 | __u8 sec_level; | |
302 | __u8 pending_sec_level; | |
303 | __u8 pin_length; | |
726b4ffc | 304 | __u8 enc_key_size; |
adc4266d | 305 | __u8 io_capability; |
adc4266d | 306 | __u16 disc_timeout; |
51a8efd7 | 307 | unsigned long flags; |
04837f64 | 308 | |
03b555e1 | 309 | __u8 remote_cap; |
03b555e1 | 310 | __u8 remote_auth; |
6ec5bcad | 311 | bool flush_key; |
03b555e1 | 312 | |
adc4266d | 313 | unsigned int sent; |
04837f64 | 314 | |
1da177e4 | 315 | struct sk_buff_head data_q; |
2c33c06a | 316 | struct list_head chan_list; |
1da177e4 | 317 | |
19c40e3b | 318 | struct delayed_work disc_work; |
04837f64 | 319 | struct timer_list idle_timer; |
9f61656a | 320 | struct timer_list auto_accept_timer; |
04837f64 | 321 | |
b219e3ac | 322 | struct device dev; |
9eba32b8 | 323 | atomic_t devref; |
b219e3ac | 324 | |
1da177e4 LT |
325 | struct hci_dev *hdev; |
326 | void *l2cap_data; | |
327 | void *sco_data; | |
2b64d153 | 328 | void *smp_conn; |
9740e49d | 329 | struct amp_mgr *amp_mgr; |
1da177e4 LT |
330 | |
331 | struct hci_conn *link; | |
e9a416b5 JH |
332 | |
333 | void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); | |
334 | void (*security_cfm_cb) (struct hci_conn *conn, u8 status); | |
335 | void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); | |
1da177e4 LT |
336 | }; |
337 | ||
73d80deb LAD |
338 | struct hci_chan { |
339 | struct list_head list; | |
340 | ||
341 | struct hci_conn *conn; | |
342 | struct sk_buff_head data_q; | |
343 | unsigned int sent; | |
344 | }; | |
345 | ||
1da177e4 LT |
346 | extern struct list_head hci_dev_list; |
347 | extern struct list_head hci_cb_list; | |
348 | extern rwlock_t hci_dev_list_lock; | |
349 | extern rwlock_t hci_cb_list_lock; | |
350 | ||
686ebf28 UF |
351 | /* ----- HCI interface to upper protocols ----- */ |
352 | extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
353 | extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status); | |
354 | extern int l2cap_disconn_ind(struct hci_conn *hcon); | |
355 | extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); | |
356 | extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); | |
c3c7ea65 GP |
357 | extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, |
358 | u16 flags); | |
686ebf28 UF |
359 | |
360 | extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
361 | extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status); | |
362 | extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); | |
363 | extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); | |
364 | ||
1da177e4 | 365 | /* ----- Inquiry cache ----- */ |
70f23020 AE |
366 | #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ |
367 | #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ | |
1da177e4 | 368 | |
30883512 | 369 | static inline void discovery_init(struct hci_dev *hdev) |
1da177e4 | 370 | { |
ff9ef578 | 371 | hdev->discovery.state = DISCOVERY_STOPPED; |
30883512 JH |
372 | INIT_LIST_HEAD(&hdev->discovery.all); |
373 | INIT_LIST_HEAD(&hdev->discovery.unknown); | |
374 | INIT_LIST_HEAD(&hdev->discovery.resolve); | |
1da177e4 LT |
375 | } |
376 | ||
30dc78e1 JH |
377 | bool hci_discovery_active(struct hci_dev *hdev); |
378 | ||
ff9ef578 JH |
379 | void hci_discovery_set_state(struct hci_dev *hdev, int state); |
380 | ||
1da177e4 LT |
381 | static inline int inquiry_cache_empty(struct hci_dev *hdev) |
382 | { | |
30883512 | 383 | return list_empty(&hdev->discovery.all); |
1da177e4 LT |
384 | } |
385 | ||
386 | static inline long inquiry_cache_age(struct hci_dev *hdev) | |
387 | { | |
30883512 | 388 | struct discovery_state *c = &hdev->discovery; |
1da177e4 LT |
389 | return jiffies - c->timestamp; |
390 | } | |
391 | ||
392 | static inline long inquiry_entry_age(struct inquiry_entry *e) | |
393 | { | |
394 | return jiffies - e->timestamp; | |
395 | } | |
396 | ||
5a9d0a3f | 397 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
04124681 | 398 | bdaddr_t *bdaddr); |
561aafbc | 399 | struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
04124681 | 400 | bdaddr_t *bdaddr); |
30dc78e1 | 401 | struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
04124681 GP |
402 | bdaddr_t *bdaddr, |
403 | int state); | |
a3d4e20a | 404 | void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
04124681 | 405 | struct inquiry_entry *ie); |
3175405b | 406 | bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
04124681 | 407 | bool name_known, bool *ssp); |
1da177e4 LT |
408 | |
409 | /* ----- HCI Connections ----- */ | |
410 | enum { | |
411 | HCI_CONN_AUTH_PEND, | |
19f8def0 | 412 | HCI_CONN_REAUTH_PEND, |
1da177e4 | 413 | HCI_CONN_ENCRYPT_PEND, |
04837f64 MH |
414 | HCI_CONN_RSWITCH_PEND, |
415 | HCI_CONN_MODE_CHANGE_PEND, | |
e73439d8 | 416 | HCI_CONN_SCO_SETUP_PEND, |
d26a2345 | 417 | HCI_CONN_LE_SMP_PEND, |
b644ba33 | 418 | HCI_CONN_MGMT_CONNECTED, |
58a681ef JH |
419 | HCI_CONN_SSP_ENABLED, |
420 | HCI_CONN_POWER_SAVE, | |
421 | HCI_CONN_REMOTE_OOB, | |
1da177e4 LT |
422 | }; |
423 | ||
aa64a8b5 JH |
424 | static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
425 | { | |
426 | struct hci_dev *hdev = conn->hdev; | |
c3c7ea65 GP |
427 | return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && |
428 | test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); | |
aa64a8b5 JH |
429 | } |
430 | ||
1da177e4 LT |
431 | static inline void hci_conn_hash_init(struct hci_dev *hdev) |
432 | { | |
433 | struct hci_conn_hash *h = &hdev->conn_hash; | |
434 | INIT_LIST_HEAD(&h->list); | |
1da177e4 LT |
435 | h->acl_num = 0; |
436 | h->sco_num = 0; | |
dc8ed672 | 437 | h->le_num = 0; |
1da177e4 LT |
438 | } |
439 | ||
440 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) | |
441 | { | |
442 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 | 443 | list_add_rcu(&c->list, &h->list); |
fcd89c09 VT |
444 | switch (c->type) { |
445 | case ACL_LINK: | |
1da177e4 | 446 | h->acl_num++; |
fcd89c09 VT |
447 | break; |
448 | case LE_LINK: | |
449 | h->le_num++; | |
450 | break; | |
451 | case SCO_LINK: | |
452 | case ESCO_LINK: | |
1da177e4 | 453 | h->sco_num++; |
fcd89c09 VT |
454 | break; |
455 | } | |
1da177e4 LT |
456 | } |
457 | ||
458 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) | |
459 | { | |
460 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 GP |
461 | |
462 | list_del_rcu(&c->list); | |
463 | synchronize_rcu(); | |
464 | ||
fcd89c09 VT |
465 | switch (c->type) { |
466 | case ACL_LINK: | |
1da177e4 | 467 | h->acl_num--; |
fcd89c09 VT |
468 | break; |
469 | case LE_LINK: | |
470 | h->le_num--; | |
471 | break; | |
472 | case SCO_LINK: | |
473 | case ESCO_LINK: | |
1da177e4 | 474 | h->sco_num--; |
fcd89c09 VT |
475 | break; |
476 | } | |
1da177e4 LT |
477 | } |
478 | ||
52087a79 LAD |
479 | static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
480 | { | |
481 | struct hci_conn_hash *h = &hdev->conn_hash; | |
482 | switch (type) { | |
483 | case ACL_LINK: | |
484 | return h->acl_num; | |
485 | case LE_LINK: | |
486 | return h->le_num; | |
487 | case SCO_LINK: | |
488 | case ESCO_LINK: | |
489 | return h->sco_num; | |
490 | default: | |
491 | return 0; | |
492 | } | |
493 | } | |
494 | ||
1da177e4 | 495 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
adc4266d | 496 | __u16 handle) |
1da177e4 LT |
497 | { |
498 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
499 | struct hci_conn *c; |
500 | ||
bf4c6325 GP |
501 | rcu_read_lock(); |
502 | ||
503 | list_for_each_entry_rcu(c, &h->list, list) { | |
504 | if (c->handle == handle) { | |
505 | rcu_read_unlock(); | |
1da177e4 | 506 | return c; |
bf4c6325 | 507 | } |
1da177e4 | 508 | } |
bf4c6325 GP |
509 | rcu_read_unlock(); |
510 | ||
1da177e4 LT |
511 | return NULL; |
512 | } | |
513 | ||
514 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, | |
adc4266d | 515 | __u8 type, bdaddr_t *ba) |
1da177e4 LT |
516 | { |
517 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
518 | struct hci_conn *c; |
519 | ||
bf4c6325 GP |
520 | rcu_read_lock(); |
521 | ||
522 | list_for_each_entry_rcu(c, &h->list, list) { | |
523 | if (c->type == type && !bacmp(&c->dst, ba)) { | |
524 | rcu_read_unlock(); | |
1da177e4 | 525 | return c; |
bf4c6325 | 526 | } |
1da177e4 | 527 | } |
bf4c6325 GP |
528 | |
529 | rcu_read_unlock(); | |
530 | ||
1da177e4 LT |
531 | return NULL; |
532 | } | |
533 | ||
4c67bc74 | 534 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
adc4266d | 535 | __u8 type, __u16 state) |
4c67bc74 MH |
536 | { |
537 | struct hci_conn_hash *h = &hdev->conn_hash; | |
4c67bc74 MH |
538 | struct hci_conn *c; |
539 | ||
bf4c6325 GP |
540 | rcu_read_lock(); |
541 | ||
542 | list_for_each_entry_rcu(c, &h->list, list) { | |
543 | if (c->type == type && c->state == state) { | |
544 | rcu_read_unlock(); | |
4c67bc74 | 545 | return c; |
bf4c6325 | 546 | } |
4c67bc74 | 547 | } |
73d80deb | 548 | |
bf4c6325 | 549 | rcu_read_unlock(); |
73d80deb | 550 | |
4c67bc74 | 551 | return NULL; |
73d80deb LAD |
552 | } |
553 | ||
4c67bc74 | 554 | void hci_acl_connect(struct hci_conn *conn); |
1da177e4 LT |
555 | void hci_acl_disconn(struct hci_conn *conn, __u8 reason); |
556 | void hci_add_sco(struct hci_conn *conn, __u16 handle); | |
b6a0dc82 | 557 | void hci_setup_sync(struct hci_conn *conn, __u16 handle); |
e73439d8 | 558 | void hci_sco_setup(struct hci_conn *conn, __u8 status); |
1da177e4 LT |
559 | |
560 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); | |
a9de9248 MH |
561 | int hci_conn_del(struct hci_conn *conn); |
562 | void hci_conn_hash_flush(struct hci_dev *hdev); | |
563 | void hci_conn_check_pending(struct hci_dev *hdev); | |
1da177e4 | 564 | |
73d80deb LAD |
565 | struct hci_chan *hci_chan_create(struct hci_conn *conn); |
566 | int hci_chan_del(struct hci_chan *chan); | |
2c33c06a | 567 | void hci_chan_list_flush(struct hci_conn *conn); |
73d80deb | 568 | |
5a9d0a3f | 569 | struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, |
b12f62cf | 570 | __u8 dst_type, __u8 sec_level, __u8 auth_type); |
e7c29cb1 | 571 | int hci_conn_check_link_mode(struct hci_conn *conn); |
b3b1b061 | 572 | int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); |
0684e5f9 | 573 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); |
1da177e4 | 574 | int hci_conn_change_link_key(struct hci_conn *conn); |
8c1b2355 | 575 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
1da177e4 | 576 | |
14b12d0b | 577 | void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); |
1da177e4 | 578 | |
9eba32b8 MH |
579 | void hci_conn_hold_device(struct hci_conn *conn); |
580 | void hci_conn_put_device(struct hci_conn *conn); | |
581 | ||
1da177e4 LT |
582 | static inline void hci_conn_hold(struct hci_conn *conn) |
583 | { | |
38b3fef1 AE |
584 | BT_DBG("hcon %p refcnt %d -> %d", conn, atomic_read(&conn->refcnt), |
585 | atomic_read(&conn->refcnt) + 1); | |
586 | ||
1da177e4 | 587 | atomic_inc(&conn->refcnt); |
2f304d1e | 588 | cancel_delayed_work(&conn->disc_work); |
1da177e4 LT |
589 | } |
590 | ||
591 | static inline void hci_conn_put(struct hci_conn *conn) | |
592 | { | |
38b3fef1 AE |
593 | BT_DBG("hcon %p refcnt %d -> %d", conn, atomic_read(&conn->refcnt), |
594 | atomic_read(&conn->refcnt) - 1); | |
595 | ||
1da177e4 | 596 | if (atomic_dec_and_test(&conn->refcnt)) { |
04837f64 | 597 | unsigned long timeo; |
454d48ff | 598 | if (conn->type == ACL_LINK || conn->type == LE_LINK) { |
04837f64 | 599 | del_timer(&conn->idle_timer); |
6ac59344 | 600 | if (conn->state == BT_CONNECTED) { |
5f246e89 | 601 | timeo = conn->disc_timeout; |
6ac59344 | 602 | if (!conn->out) |
052b30b0 | 603 | timeo *= 2; |
5a9d0a3f | 604 | } else { |
6ac59344 | 605 | timeo = msecs_to_jiffies(10); |
5a9d0a3f WR |
606 | } |
607 | } else { | |
04837f64 | 608 | timeo = msecs_to_jiffies(10); |
5a9d0a3f | 609 | } |
2f304d1e | 610 | cancel_delayed_work(&conn->disc_work); |
19c40e3b | 611 | queue_delayed_work(conn->hdev->workqueue, |
1931782b | 612 | &conn->disc_work, timeo); |
1da177e4 LT |
613 | } |
614 | } | |
615 | ||
1da177e4 | 616 | /* ----- HCI Devices ----- */ |
dc946bd8 | 617 | static inline void hci_dev_put(struct hci_dev *d) |
1da177e4 | 618 | { |
4c724c71 | 619 | put_device(&d->dev); |
1da177e4 LT |
620 | } |
621 | ||
dc946bd8 | 622 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
1da177e4 | 623 | { |
4c724c71 | 624 | get_device(&d->dev); |
1da177e4 LT |
625 | return d; |
626 | } | |
627 | ||
09fd0de5 GP |
628 | #define hci_dev_lock(d) mutex_lock(&d->lock) |
629 | #define hci_dev_unlock(d) mutex_unlock(&d->lock) | |
1da177e4 | 630 | |
aa2b86d7 | 631 | #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
3dc07322 | 632 | #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
aa2b86d7 | 633 | |
155961e8 DH |
634 | static inline void *hci_get_drvdata(struct hci_dev *hdev) |
635 | { | |
636 | return dev_get_drvdata(&hdev->dev); | |
637 | } | |
638 | ||
639 | static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) | |
640 | { | |
641 | dev_set_drvdata(&hdev->dev, data); | |
642 | } | |
643 | ||
8598d064 AE |
644 | /* hci_dev_list shall be locked */ |
645 | static inline uint8_t __hci_num_ctrl(void) | |
646 | { | |
647 | uint8_t count = 0; | |
648 | struct list_head *p; | |
649 | ||
650 | list_for_each(p, &hci_dev_list) { | |
651 | count++; | |
652 | } | |
653 | ||
654 | return count; | |
655 | } | |
656 | ||
1da177e4 LT |
657 | struct hci_dev *hci_dev_get(int index); |
658 | struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); | |
659 | ||
660 | struct hci_dev *hci_alloc_dev(void); | |
661 | void hci_free_dev(struct hci_dev *hdev); | |
662 | int hci_register_dev(struct hci_dev *hdev); | |
59735631 | 663 | void hci_unregister_dev(struct hci_dev *hdev); |
1da177e4 LT |
664 | int hci_suspend_dev(struct hci_dev *hdev); |
665 | int hci_resume_dev(struct hci_dev *hdev); | |
666 | int hci_dev_open(__u16 dev); | |
667 | int hci_dev_close(__u16 dev); | |
668 | int hci_dev_reset(__u16 dev); | |
669 | int hci_dev_reset_stat(__u16 dev); | |
670 | int hci_dev_cmd(unsigned int cmd, void __user *arg); | |
671 | int hci_get_dev_list(void __user *arg); | |
672 | int hci_get_dev_info(void __user *arg); | |
673 | int hci_get_conn_list(void __user *arg); | |
674 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); | |
40be492f | 675 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
1da177e4 LT |
676 | int hci_inquiry(void __user *arg); |
677 | ||
c3c7ea65 GP |
678 | struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, |
679 | bdaddr_t *bdaddr); | |
f0358568 | 680 | int hci_blacklist_clear(struct hci_dev *hdev); |
88c1fe4b JH |
681 | int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
682 | int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
f0358568 | 683 | |
2aeb9a1a JH |
684 | int hci_uuids_clear(struct hci_dev *hdev); |
685 | ||
55ed8ca1 JH |
686 | int hci_link_keys_clear(struct hci_dev *hdev); |
687 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
d25e28ab | 688 | int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, |
04124681 | 689 | bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); |
c9839a11 VCG |
690 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]); |
691 | int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, | |
9a006657 AE |
692 | int new_key, u8 authenticated, u8 tk[16], u8 enc_size, |
693 | __le16 ediv, u8 rand[8]); | |
c9839a11 | 694 | struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 695 | u8 addr_type); |
b899efaf | 696 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr); |
b899efaf | 697 | int hci_smp_ltks_clear(struct hci_dev *hdev); |
55ed8ca1 JH |
698 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
699 | ||
2763eda6 SJ |
700 | int hci_remote_oob_data_clear(struct hci_dev *hdev); |
701 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, | |
702 | bdaddr_t *bdaddr); | |
703 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, | |
704 | u8 *randomizer); | |
705 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
706 | ||
1da177e4 LT |
707 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
708 | ||
76bca880 | 709 | int hci_recv_frame(struct sk_buff *skb); |
ef222013 | 710 | int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); |
99811510 | 711 | int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); |
ef222013 | 712 | |
0ac7e700 | 713 | void hci_init_sysfs(struct hci_dev *hdev); |
ce242970 DH |
714 | int hci_add_sysfs(struct hci_dev *hdev); |
715 | void hci_del_sysfs(struct hci_dev *hdev); | |
a67e899c | 716 | void hci_conn_init_sysfs(struct hci_conn *conn); |
b219e3ac MH |
717 | void hci_conn_add_sysfs(struct hci_conn *conn); |
718 | void hci_conn_del_sysfs(struct hci_conn *conn); | |
1da177e4 | 719 | |
6935e0f5 | 720 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
1da177e4 LT |
721 | |
722 | /* ----- LMP capabilities ----- */ | |
04837f64 MH |
723 | #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) |
724 | #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) | |
725 | #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) | |
726 | #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) | |
5b7f9909 | 727 | #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) |
769be974 | 728 | #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) |
e702112f | 729 | #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH) |
6ed58ec5 | 730 | #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE) |
5e0452c0 | 731 | #define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR)) |
1da177e4 | 732 | |
eead27da | 733 | /* ----- Extended LMP capabilities ----- */ |
59e29406 | 734 | #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE) |
eead27da | 735 | |
1da177e4 | 736 | /* ----- HCI protocols ----- */ |
5a9d0a3f WR |
737 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
738 | __u8 type) | |
1da177e4 | 739 | { |
686ebf28 UF |
740 | switch (type) { |
741 | case ACL_LINK: | |
742 | return l2cap_connect_ind(hdev, bdaddr); | |
1da177e4 | 743 | |
686ebf28 UF |
744 | case SCO_LINK: |
745 | case ESCO_LINK: | |
746 | return sco_connect_ind(hdev, bdaddr); | |
1da177e4 | 747 | |
686ebf28 UF |
748 | default: |
749 | BT_ERR("unknown link type %d", type); | |
750 | return -EINVAL; | |
751 | } | |
1da177e4 LT |
752 | } |
753 | ||
754 | static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) | |
755 | { | |
686ebf28 UF |
756 | switch (conn->type) { |
757 | case ACL_LINK: | |
758 | case LE_LINK: | |
759 | l2cap_connect_cfm(conn, status); | |
760 | break; | |
1da177e4 | 761 | |
686ebf28 UF |
762 | case SCO_LINK: |
763 | case ESCO_LINK: | |
764 | sco_connect_cfm(conn, status); | |
765 | break; | |
1da177e4 | 766 | |
686ebf28 UF |
767 | default: |
768 | BT_ERR("unknown link type %d", conn->type); | |
769 | break; | |
770 | } | |
e9a416b5 JH |
771 | |
772 | if (conn->connect_cfm_cb) | |
773 | conn->connect_cfm_cb(conn, status); | |
1da177e4 LT |
774 | } |
775 | ||
2950f21a | 776 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
1da177e4 | 777 | { |
686ebf28 UF |
778 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
779 | return HCI_ERROR_REMOTE_USER_TERM; | |
1da177e4 | 780 | |
686ebf28 | 781 | return l2cap_disconn_ind(conn); |
2950f21a MH |
782 | } |
783 | ||
784 | static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) | |
785 | { | |
686ebf28 UF |
786 | switch (conn->type) { |
787 | case ACL_LINK: | |
788 | case LE_LINK: | |
789 | l2cap_disconn_cfm(conn, reason); | |
790 | break; | |
2950f21a | 791 | |
686ebf28 UF |
792 | case SCO_LINK: |
793 | case ESCO_LINK: | |
794 | sco_disconn_cfm(conn, reason); | |
795 | break; | |
2950f21a | 796 | |
686ebf28 UF |
797 | default: |
798 | BT_ERR("unknown link type %d", conn->type); | |
799 | break; | |
800 | } | |
e9a416b5 JH |
801 | |
802 | if (conn->disconn_cfm_cb) | |
803 | conn->disconn_cfm_cb(conn, reason); | |
1da177e4 LT |
804 | } |
805 | ||
806 | static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) | |
807 | { | |
8c1b2355 MH |
808 | __u8 encrypt; |
809 | ||
686ebf28 UF |
810 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
811 | return; | |
812 | ||
51a8efd7 | 813 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
814 | return; |
815 | ||
816 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
686ebf28 | 817 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
818 | |
819 | if (conn->security_cfm_cb) | |
820 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
821 | } |
822 | ||
5a9d0a3f WR |
823 | static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, |
824 | __u8 encrypt) | |
1da177e4 | 825 | { |
686ebf28 UF |
826 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
827 | return; | |
1da177e4 | 828 | |
686ebf28 | 829 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
830 | |
831 | if (conn->security_cfm_cb) | |
832 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
833 | } |
834 | ||
1da177e4 LT |
835 | /* ----- HCI callbacks ----- */ |
836 | struct hci_cb { | |
837 | struct list_head list; | |
838 | ||
839 | char *name; | |
840 | ||
5a9d0a3f WR |
841 | void (*security_cfm) (struct hci_conn *conn, __u8 status, |
842 | __u8 encrypt); | |
1da177e4 LT |
843 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
844 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); | |
845 | }; | |
846 | ||
847 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) | |
848 | { | |
849 | struct list_head *p; | |
8c1b2355 | 850 | __u8 encrypt; |
1da177e4 LT |
851 | |
852 | hci_proto_auth_cfm(conn, status); | |
853 | ||
51a8efd7 | 854 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
855 | return; |
856 | ||
857 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
858 | ||
f20d09d5 | 859 | read_lock(&hci_cb_list_lock); |
1da177e4 LT |
860 | list_for_each(p, &hci_cb_list) { |
861 | struct hci_cb *cb = list_entry(p, struct hci_cb, list); | |
8c1b2355 MH |
862 | if (cb->security_cfm) |
863 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 864 | } |
f20d09d5 | 865 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
866 | } |
867 | ||
5a9d0a3f WR |
868 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, |
869 | __u8 encrypt) | |
1da177e4 LT |
870 | { |
871 | struct list_head *p; | |
872 | ||
435fef20 MH |
873 | if (conn->sec_level == BT_SECURITY_SDP) |
874 | conn->sec_level = BT_SECURITY_LOW; | |
875 | ||
88167aed VCG |
876 | if (conn->pending_sec_level > conn->sec_level) |
877 | conn->sec_level = conn->pending_sec_level; | |
878 | ||
9719f8af | 879 | hci_proto_encrypt_cfm(conn, status, encrypt); |
1da177e4 | 880 | |
f20d09d5 | 881 | read_lock(&hci_cb_list_lock); |
1da177e4 LT |
882 | list_for_each(p, &hci_cb_list) { |
883 | struct hci_cb *cb = list_entry(p, struct hci_cb, list); | |
8c1b2355 MH |
884 | if (cb->security_cfm) |
885 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 886 | } |
f20d09d5 | 887 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
888 | } |
889 | ||
890 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) | |
891 | { | |
892 | struct list_head *p; | |
893 | ||
f20d09d5 | 894 | read_lock(&hci_cb_list_lock); |
1da177e4 LT |
895 | list_for_each(p, &hci_cb_list) { |
896 | struct hci_cb *cb = list_entry(p, struct hci_cb, list); | |
897 | if (cb->key_change_cfm) | |
898 | cb->key_change_cfm(conn, status); | |
899 | } | |
f20d09d5 | 900 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
901 | } |
902 | ||
5a9d0a3f WR |
903 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
904 | __u8 role) | |
1da177e4 LT |
905 | { |
906 | struct list_head *p; | |
907 | ||
f20d09d5 | 908 | read_lock(&hci_cb_list_lock); |
1da177e4 LT |
909 | list_for_each(p, &hci_cb_list) { |
910 | struct hci_cb *cb = list_entry(p, struct hci_cb, list); | |
911 | if (cb->role_switch_cfm) | |
912 | cb->role_switch_cfm(conn, status, role); | |
913 | } | |
f20d09d5 | 914 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
915 | } |
916 | ||
6759a675 JH |
917 | static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) |
918 | { | |
84d9d071 | 919 | size_t parsed = 0; |
6759a675 | 920 | |
6c0c331e JH |
921 | if (data_len < 2) |
922 | return false; | |
923 | ||
84d9d071 JH |
924 | while (parsed < data_len - 1) { |
925 | u8 field_len = data[0]; | |
6759a675 JH |
926 | |
927 | if (field_len == 0) | |
928 | break; | |
929 | ||
930 | parsed += field_len + 1; | |
931 | ||
932 | if (parsed > data_len) | |
933 | break; | |
934 | ||
935 | if (data[1] == type) | |
936 | return true; | |
937 | ||
938 | data += field_len + 1; | |
939 | } | |
940 | ||
941 | return false; | |
942 | } | |
943 | ||
9d939d94 VA |
944 | static inline size_t eir_get_length(u8 *eir, size_t eir_len) |
945 | { | |
946 | size_t parsed = 0; | |
947 | ||
948 | while (parsed < eir_len) { | |
949 | u8 field_len = eir[0]; | |
950 | ||
951 | if (field_len == 0) | |
952 | return parsed; | |
953 | ||
954 | parsed += field_len + 1; | |
955 | eir += field_len + 1; | |
956 | } | |
957 | ||
958 | return eir_len; | |
959 | } | |
960 | ||
1dc06093 | 961 | static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data, |
04124681 | 962 | u8 data_len) |
1dc06093 JH |
963 | { |
964 | eir[eir_len++] = sizeof(type) + data_len; | |
965 | eir[eir_len++] = type; | |
966 | memcpy(&eir[eir_len], data, data_len); | |
967 | eir_len += data_len; | |
968 | ||
969 | return eir_len; | |
970 | } | |
971 | ||
1da177e4 LT |
972 | int hci_register_cb(struct hci_cb *hcb); |
973 | int hci_unregister_cb(struct hci_cb *hcb); | |
974 | ||
a9de9248 | 975 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); |
73d80deb | 976 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
0d861d8b | 977 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
1da177e4 | 978 | |
a9de9248 | 979 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
1da177e4 | 980 | |
1da177e4 | 981 | /* ----- HCI Sockets ----- */ |
470fe1b5 MH |
982 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
983 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); | |
cd82e61c | 984 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 985 | |
040030ef MH |
986 | void hci_sock_dev_event(struct hci_dev *hdev, int event); |
987 | ||
0381101f | 988 | /* Management interface */ |
591f47f3 AG |
989 | #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
990 | #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ | |
991 | BIT(BDADDR_LE_RANDOM)) | |
992 | #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ | |
993 | BIT(BDADDR_LE_PUBLIC) | \ | |
994 | BIT(BDADDR_LE_RANDOM)) | |
f39799f5 | 995 | |
0381101f | 996 | int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); |
744cf19e JH |
997 | int mgmt_index_added(struct hci_dev *hdev); |
998 | int mgmt_index_removed(struct hci_dev *hdev); | |
999 | int mgmt_powered(struct hci_dev *hdev, u8 powered); | |
1000 | int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); | |
1001 | int mgmt_connectable(struct hci_dev *hdev, u8 connectable); | |
1002 | int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); | |
1003 | int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, | |
745c0ce3 | 1004 | bool persistent); |
afc747a6 | 1005 | int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 GP |
1006 | u8 addr_type, u32 flags, u8 *name, u8 name_len, |
1007 | u8 *dev_class); | |
afc747a6 | 1008 | int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1009 | u8 link_type, u8 addr_type); |
88c3df13 | 1010 | int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1011 | u8 link_type, u8 addr_type, u8 status); |
48264f06 | 1012 | int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1013 | u8 addr_type, u8 status); |
744cf19e JH |
1014 | int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
1015 | int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
04124681 | 1016 | u8 status); |
744cf19e | 1017 | int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1018 | u8 status); |
744cf19e | 1019 | int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 GP |
1020 | u8 link_type, u8 addr_type, __le32 value, |
1021 | u8 confirm_hint); | |
744cf19e | 1022 | int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1023 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1024 | int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1025 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1026 | int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1027 | u8 link_type, u8 addr_type); |
604086b7 | 1028 | int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1029 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1030 | int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1031 | u8 link_type, u8 addr_type, u8 status); |
bab73cb6 | 1032 | int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1033 | u8 addr_type, u8 status); |
33ef95ed | 1034 | int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
c0ecddc2 | 1035 | int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
7f9a903c | 1036 | int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
04124681 | 1037 | u8 status); |
744cf19e JH |
1038 | int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
1039 | int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, | |
04124681 | 1040 | u8 *randomizer, u8 status); |
06199cf8 | 1041 | int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
48264f06 | 1042 | int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 GP |
1043 | u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, |
1044 | u8 ssp, u8 *eir, u16 eir_len); | |
b644ba33 | 1045 | int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1046 | u8 addr_type, s8 rssi, u8 *name, u8 name_len); |
7a135109 | 1047 | int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status); |
e6d465cb | 1048 | int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status); |
744cf19e | 1049 | int mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
5e0452c0 | 1050 | int mgmt_interleaved_discovery(struct hci_dev *hdev); |
88c1fe4b JH |
1051 | int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
1052 | int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
bb4b2a9a | 1053 | bool mgmt_valid_hdev(struct hci_dev *hdev); |
346af67b VCG |
1054 | int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent); |
1055 | ||
1da177e4 LT |
1056 | /* HCI info for socket */ |
1057 | #define hci_pi(sk) ((struct hci_pinfo *) sk) | |
1058 | ||
1059 | struct hci_pinfo { | |
1060 | struct bt_sock bt; | |
1061 | struct hci_dev *hdev; | |
1062 | struct hci_filter filter; | |
1063 | __u32 cmsg_mask; | |
c02178d2 | 1064 | unsigned short channel; |
1da177e4 LT |
1065 | }; |
1066 | ||
1067 | /* HCI security filter */ | |
1068 | #define HCI_SFLT_MAX_OGF 5 | |
1069 | ||
1070 | struct hci_sec_filter { | |
1071 | __u32 type_mask; | |
1072 | __u32 event_mask[2]; | |
1073 | __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; | |
1074 | }; | |
1075 | ||
1076 | /* ----- HCI requests ----- */ | |
1077 | #define HCI_REQ_DONE 0 | |
1078 | #define HCI_REQ_PEND 1 | |
1079 | #define HCI_REQ_CANCELED 2 | |
1080 | ||
a6a67efd TG |
1081 | #define hci_req_lock(d) mutex_lock(&d->req_lock) |
1082 | #define hci_req_unlock(d) mutex_unlock(&d->req_lock) | |
1da177e4 | 1083 | |
23bb5763 | 1084 | void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result); |
1da177e4 | 1085 | |
2ce603eb CT |
1086 | void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, |
1087 | u16 latency, u16 to_multiplier); | |
a7a595f6 VCG |
1088 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], |
1089 | __u8 ltk[16]); | |
2519a1fc | 1090 | int hci_do_inquiry(struct hci_dev *hdev, u8 length); |
023d5049 | 1091 | int hci_cancel_inquiry(struct hci_dev *hdev); |
28b75a89 | 1092 | int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window, |
04124681 | 1093 | int timeout); |
7dbfac1d | 1094 | int hci_cancel_le_scan(struct hci_dev *hdev); |
2519a1fc | 1095 | |
31f7956c AG |
1096 | u8 bdaddr_to_le(u8 bdaddr_type); |
1097 | ||
1da177e4 | 1098 | #endif /* __HCI_CORE_H */ |