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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 | 75 | unsigned int acl_num; |
bd1eb66b | 76 | unsigned int amp_num; |
1da177e4 | 77 | unsigned int sco_num; |
fcd89c09 | 78 | unsigned int le_num; |
1da177e4 LT |
79 | }; |
80 | ||
f0358568 JH |
81 | struct bdaddr_list { |
82 | struct list_head list; | |
83 | bdaddr_t bdaddr; | |
b9ee0a78 | 84 | u8 bdaddr_type; |
f0358568 | 85 | }; |
2aeb9a1a JH |
86 | |
87 | struct bt_uuid { | |
88 | struct list_head list; | |
89 | u8 uuid[16]; | |
83be8eca | 90 | u8 size; |
1aff6f09 | 91 | u8 svc_hint; |
2aeb9a1a JH |
92 | }; |
93 | ||
b899efaf VCG |
94 | struct smp_ltk { |
95 | struct list_head list; | |
96 | bdaddr_t bdaddr; | |
97 | u8 bdaddr_type; | |
98 | u8 authenticated; | |
99 | u8 type; | |
100 | u8 enc_size; | |
101 | __le16 ediv; | |
102 | u8 rand[8]; | |
103 | u8 val[16]; | |
03c515d7 | 104 | }; |
b899efaf | 105 | |
970c4e46 JH |
106 | struct smp_irk { |
107 | struct list_head list; | |
108 | bdaddr_t rpa; | |
109 | bdaddr_t bdaddr; | |
110 | u8 addr_type; | |
111 | u8 val[16]; | |
112 | }; | |
113 | ||
55ed8ca1 JH |
114 | struct link_key { |
115 | struct list_head list; | |
116 | bdaddr_t bdaddr; | |
117 | u8 type; | |
9b3b4460 | 118 | u8 val[HCI_LINK_KEY_SIZE]; |
55ed8ca1 JH |
119 | u8 pin_len; |
120 | }; | |
121 | ||
2763eda6 SJ |
122 | struct oob_data { |
123 | struct list_head list; | |
124 | bdaddr_t bdaddr; | |
519ca9d0 MH |
125 | u8 hash192[16]; |
126 | u8 randomizer192[16]; | |
127 | u8 hash256[16]; | |
128 | u8 randomizer256[16]; | |
2763eda6 SJ |
129 | }; |
130 | ||
490c5bab JH |
131 | #define HCI_MAX_SHORT_NAME_LENGTH 10 |
132 | ||
903e4541 AE |
133 | struct amp_assoc { |
134 | __u16 len; | |
135 | __u16 offset; | |
93c284ee AE |
136 | __u16 rem_len; |
137 | __u16 len_so_far; | |
903e4541 AE |
138 | __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; |
139 | }; | |
140 | ||
d2c5d77f | 141 | #define HCI_MAX_PAGES 3 |
cad718ed | 142 | |
cd4c5391 | 143 | #define NUM_REASSEMBLY 4 |
1da177e4 LT |
144 | struct hci_dev { |
145 | struct list_head list; | |
09fd0de5 | 146 | struct mutex lock; |
1da177e4 LT |
147 | |
148 | char name[8]; | |
149 | unsigned long flags; | |
150 | __u16 id; | |
c13854ce | 151 | __u8 bus; |
943da25d | 152 | __u8 dev_type; |
1da177e4 | 153 | bdaddr_t bdaddr; |
7a4cd51d | 154 | bdaddr_t random_addr; |
d13eafce | 155 | bdaddr_t static_addr; |
79830f66 | 156 | __u8 own_addr_type; |
1f6c6378 | 157 | __u8 dev_name[HCI_MAX_NAME_LENGTH]; |
490c5bab | 158 | __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; |
80a1e1db | 159 | __u8 eir[HCI_MAX_EIR_LENGTH]; |
a9de9248 | 160 | __u8 dev_class[3]; |
1aff6f09 JH |
161 | __u8 major_class; |
162 | __u8 minor_class; | |
d2c5d77f | 163 | __u8 max_page; |
cad718ed | 164 | __u8 features[HCI_MAX_PAGES][8]; |
60e77321 | 165 | __u8 le_features[8]; |
cf1d081f | 166 | __u8 le_white_list_size; |
9b008c04 | 167 | __u8 le_states[8]; |
a9de9248 | 168 | __u8 commands[64]; |
1143e5a6 MH |
169 | __u8 hci_ver; |
170 | __u16 hci_rev; | |
d5859e22 | 171 | __u8 lmp_ver; |
1143e5a6 | 172 | __u16 manufacturer; |
7d69230c | 173 | __u16 lmp_subver; |
1da177e4 | 174 | __u16 voice_setting; |
b4cb9fb2 | 175 | __u8 num_iac; |
17fa4b9d | 176 | __u8 io_capability; |
91c4e9b1 | 177 | __s8 inq_tx_power; |
f332ec66 JH |
178 | __u16 page_scan_interval; |
179 | __u16 page_scan_window; | |
180 | __u8 page_scan_type; | |
bef64738 MH |
181 | __u16 le_scan_interval; |
182 | __u16 le_scan_window; | |
4e70c7e7 MH |
183 | __u16 le_conn_min_interval; |
184 | __u16 le_conn_max_interval; | |
06f5b778 | 185 | __u8 ssp_debug_mode; |
f332ec66 | 186 | |
2b9be137 MH |
187 | __u16 devid_source; |
188 | __u16 devid_vendor; | |
189 | __u16 devid_product; | |
190 | __u16 devid_version; | |
1da177e4 LT |
191 | |
192 | __u16 pkt_type; | |
5b7f9909 | 193 | __u16 esco_type; |
1da177e4 LT |
194 | __u16 link_policy; |
195 | __u16 link_mode; | |
196 | ||
04837f64 MH |
197 | __u32 idle_timeout; |
198 | __u16 sniff_min_interval; | |
199 | __u16 sniff_max_interval; | |
200 | ||
928abaa7 AE |
201 | __u8 amp_status; |
202 | __u32 amp_total_bw; | |
203 | __u32 amp_max_bw; | |
204 | __u32 amp_min_latency; | |
205 | __u32 amp_max_pdu; | |
206 | __u8 amp_type; | |
207 | __u16 amp_pal_cap; | |
208 | __u16 amp_assoc_size; | |
209 | __u32 amp_max_flush_to; | |
210 | __u32 amp_be_flush_to; | |
211 | ||
903e4541 AE |
212 | struct amp_assoc loc_assoc; |
213 | ||
1e89cffb AE |
214 | __u8 flow_ctl_mode; |
215 | ||
9f61656a JH |
216 | unsigned int auto_accept_delay; |
217 | ||
1da177e4 LT |
218 | unsigned long quirks; |
219 | ||
220 | atomic_t cmd_cnt; | |
221 | unsigned int acl_cnt; | |
222 | unsigned int sco_cnt; | |
6ed58ec5 | 223 | unsigned int le_cnt; |
1da177e4 LT |
224 | |
225 | unsigned int acl_mtu; | |
226 | unsigned int sco_mtu; | |
6ed58ec5 | 227 | unsigned int le_mtu; |
1da177e4 LT |
228 | unsigned int acl_pkts; |
229 | unsigned int sco_pkts; | |
6ed58ec5 | 230 | unsigned int le_pkts; |
1da177e4 | 231 | |
350ee4cf AE |
232 | __u16 block_len; |
233 | __u16 block_mtu; | |
234 | __u16 num_blocks; | |
235 | __u16 block_cnt; | |
236 | ||
1da177e4 LT |
237 | unsigned long acl_last_tx; |
238 | unsigned long sco_last_tx; | |
6ed58ec5 | 239 | unsigned long le_last_tx; |
1da177e4 | 240 | |
f48fd9c8 | 241 | struct workqueue_struct *workqueue; |
6ead1bbc | 242 | struct workqueue_struct *req_workqueue; |
f48fd9c8 | 243 | |
ab81cbf9 | 244 | struct work_struct power_on; |
3243553f | 245 | struct delayed_work power_off; |
ab81cbf9 | 246 | |
16ab91ab JH |
247 | __u16 discov_timeout; |
248 | struct delayed_work discov_off; | |
249 | ||
7d78525d JH |
250 | struct delayed_work service_cache; |
251 | ||
6bd32326 | 252 | struct timer_list cmd_timer; |
b78752cc MH |
253 | |
254 | struct work_struct rx_work; | |
c347b765 | 255 | struct work_struct cmd_work; |
3eff45ea | 256 | struct work_struct tx_work; |
1da177e4 LT |
257 | |
258 | struct sk_buff_head rx_q; | |
259 | struct sk_buff_head raw_q; | |
260 | struct sk_buff_head cmd_q; | |
261 | ||
b6ddb638 | 262 | struct sk_buff *recv_evt; |
1da177e4 | 263 | struct sk_buff *sent_cmd; |
cd4c5391 | 264 | struct sk_buff *reassembly[NUM_REASSEMBLY]; |
1da177e4 | 265 | |
a6a67efd | 266 | struct mutex req_lock; |
1da177e4 LT |
267 | wait_queue_head_t req_wait_q; |
268 | __u32 req_status; | |
269 | __u32 req_result; | |
a5040efa | 270 | |
99780a7b | 271 | struct crypto_blkcipher *tfm_aes; |
2e58ef3e | 272 | |
30883512 | 273 | struct discovery_state discovery; |
1da177e4 LT |
274 | struct hci_conn_hash conn_hash; |
275 | ||
5c136e90 AG |
276 | struct list_head mgmt_pending; |
277 | struct list_head blacklist; | |
2aeb9a1a | 278 | struct list_head uuids; |
55ed8ca1 | 279 | struct list_head link_keys; |
b899efaf | 280 | struct list_head long_term_keys; |
970c4e46 | 281 | struct list_head identity_resolving_keys; |
2763eda6 | 282 | struct list_head remote_oob_data; |
15819a70 | 283 | struct list_head le_conn_params; |
2763eda6 | 284 | |
1da177e4 LT |
285 | struct hci_dev_stats stat; |
286 | ||
70f23020 | 287 | atomic_t promisc; |
1da177e4 | 288 | |
ca325f69 MH |
289 | struct dentry *debugfs; |
290 | ||
a91f2e39 | 291 | struct device dev; |
1da177e4 | 292 | |
611b30f7 MH |
293 | struct rfkill *rfkill; |
294 | ||
d23264a8 AG |
295 | unsigned long dev_flags; |
296 | ||
7ba8b4be AG |
297 | struct delayed_work le_scan_disable; |
298 | ||
8fa19098 | 299 | __s8 adv_tx_power; |
3f0f524b JH |
300 | __u8 adv_data[HCI_MAX_AD_LENGTH]; |
301 | __u8 adv_data_len; | |
f8e808bd MH |
302 | __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; |
303 | __u8 scan_rsp_data_len; | |
8fa19098 | 304 | |
1da177e4 LT |
305 | int (*open)(struct hci_dev *hdev); |
306 | int (*close)(struct hci_dev *hdev); | |
307 | int (*flush)(struct hci_dev *hdev); | |
f41c70c4 | 308 | int (*setup)(struct hci_dev *hdev); |
7bd8f09f | 309 | int (*send)(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 310 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
1da177e4 LT |
311 | }; |
312 | ||
53502d69 AE |
313 | #define HCI_PHY_HANDLE(handle) (handle & 0xff) |
314 | ||
1da177e4 LT |
315 | struct hci_conn { |
316 | struct list_head list; | |
317 | ||
adc4266d | 318 | atomic_t refcnt; |
adc4266d SJ |
319 | |
320 | bdaddr_t dst; | |
5a9d0a3f | 321 | __u8 dst_type; |
662e8820 | 322 | bdaddr_t src; |
e7c4096e | 323 | __u8 src_type; |
adc4266d SJ |
324 | __u16 handle; |
325 | __u16 state; | |
326 | __u8 mode; | |
327 | __u8 type; | |
a0c808b3 | 328 | bool out; |
adc4266d SJ |
329 | __u8 attempt; |
330 | __u8 dev_class[3]; | |
cad718ed | 331 | __u8 features[HCI_MAX_PAGES][8]; |
adc4266d SJ |
332 | __u16 pkt_type; |
333 | __u16 link_policy; | |
334 | __u32 link_mode; | |
13d39315 | 335 | __u8 key_type; |
adc4266d SJ |
336 | __u8 auth_type; |
337 | __u8 sec_level; | |
338 | __u8 pending_sec_level; | |
339 | __u8 pin_length; | |
726b4ffc | 340 | __u8 enc_key_size; |
adc4266d | 341 | __u8 io_capability; |
92a25256 JH |
342 | __u32 passkey_notify; |
343 | __u8 passkey_entered; | |
adc4266d | 344 | __u16 disc_timeout; |
10c62ddc | 345 | __u16 setting; |
1e406eef AG |
346 | __u16 le_conn_min_interval; |
347 | __u16 le_conn_max_interval; | |
51a8efd7 | 348 | unsigned long flags; |
04837f64 | 349 | |
03b555e1 | 350 | __u8 remote_cap; |
03b555e1 | 351 | __u8 remote_auth; |
3161ae1c | 352 | __u8 remote_id; |
6ec5bcad | 353 | bool flush_key; |
03b555e1 | 354 | |
adc4266d | 355 | unsigned int sent; |
04837f64 | 356 | |
1da177e4 | 357 | struct sk_buff_head data_q; |
2c33c06a | 358 | struct list_head chan_list; |
1da177e4 | 359 | |
19c40e3b | 360 | struct delayed_work disc_work; |
7bc18d9d | 361 | struct delayed_work auto_accept_work; |
a74a84f6 | 362 | struct delayed_work idle_work; |
04837f64 | 363 | |
b219e3ac MH |
364 | struct device dev; |
365 | ||
1da177e4 LT |
366 | struct hci_dev *hdev; |
367 | void *l2cap_data; | |
368 | void *sco_data; | |
2b64d153 | 369 | void *smp_conn; |
9740e49d | 370 | struct amp_mgr *amp_mgr; |
1da177e4 LT |
371 | |
372 | struct hci_conn *link; | |
e9a416b5 JH |
373 | |
374 | void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); | |
375 | void (*security_cfm_cb) (struct hci_conn *conn, u8 status); | |
376 | void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); | |
1da177e4 LT |
377 | }; |
378 | ||
73d80deb LAD |
379 | struct hci_chan { |
380 | struct list_head list; | |
42c4e53e | 381 | __u16 handle; |
73d80deb LAD |
382 | struct hci_conn *conn; |
383 | struct sk_buff_head data_q; | |
384 | unsigned int sent; | |
168df8e5 | 385 | __u8 state; |
73d80deb LAD |
386 | }; |
387 | ||
15819a70 AG |
388 | struct hci_conn_params { |
389 | struct list_head list; | |
390 | ||
391 | bdaddr_t addr; | |
392 | u8 addr_type; | |
393 | ||
394 | u16 conn_min_interval; | |
395 | u16 conn_max_interval; | |
396 | }; | |
397 | ||
1da177e4 LT |
398 | extern struct list_head hci_dev_list; |
399 | extern struct list_head hci_cb_list; | |
400 | extern rwlock_t hci_dev_list_lock; | |
401 | extern rwlock_t hci_cb_list_lock; | |
402 | ||
686ebf28 | 403 | /* ----- HCI interface to upper protocols ----- */ |
e74e58f8 JP |
404 | int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); |
405 | void l2cap_connect_cfm(struct hci_conn *hcon, u8 status); | |
406 | int l2cap_disconn_ind(struct hci_conn *hcon); | |
407 | void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); | |
408 | int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); | |
409 | int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); | |
410 | ||
411 | int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); | |
412 | void sco_connect_cfm(struct hci_conn *hcon, __u8 status); | |
413 | void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); | |
414 | int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); | |
686ebf28 | 415 | |
1da177e4 | 416 | /* ----- Inquiry cache ----- */ |
70f23020 AE |
417 | #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ |
418 | #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ | |
1da177e4 | 419 | |
30883512 | 420 | static inline void discovery_init(struct hci_dev *hdev) |
1da177e4 | 421 | { |
ff9ef578 | 422 | hdev->discovery.state = DISCOVERY_STOPPED; |
30883512 JH |
423 | INIT_LIST_HEAD(&hdev->discovery.all); |
424 | INIT_LIST_HEAD(&hdev->discovery.unknown); | |
425 | INIT_LIST_HEAD(&hdev->discovery.resolve); | |
1da177e4 LT |
426 | } |
427 | ||
30dc78e1 JH |
428 | bool hci_discovery_active(struct hci_dev *hdev); |
429 | ||
ff9ef578 JH |
430 | void hci_discovery_set_state(struct hci_dev *hdev, int state); |
431 | ||
1da177e4 LT |
432 | static inline int inquiry_cache_empty(struct hci_dev *hdev) |
433 | { | |
30883512 | 434 | return list_empty(&hdev->discovery.all); |
1da177e4 LT |
435 | } |
436 | ||
437 | static inline long inquiry_cache_age(struct hci_dev *hdev) | |
438 | { | |
30883512 | 439 | struct discovery_state *c = &hdev->discovery; |
1da177e4 LT |
440 | return jiffies - c->timestamp; |
441 | } | |
442 | ||
443 | static inline long inquiry_entry_age(struct inquiry_entry *e) | |
444 | { | |
445 | return jiffies - e->timestamp; | |
446 | } | |
447 | ||
5a9d0a3f | 448 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
04124681 | 449 | bdaddr_t *bdaddr); |
561aafbc | 450 | struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
04124681 | 451 | bdaddr_t *bdaddr); |
30dc78e1 | 452 | struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
04124681 GP |
453 | bdaddr_t *bdaddr, |
454 | int state); | |
a3d4e20a | 455 | void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
04124681 | 456 | struct inquiry_entry *ie); |
3175405b | 457 | bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
04124681 | 458 | bool name_known, bool *ssp); |
1f9b9a5d | 459 | void hci_inquiry_cache_flush(struct hci_dev *hdev); |
1da177e4 LT |
460 | |
461 | /* ----- HCI Connections ----- */ | |
462 | enum { | |
463 | HCI_CONN_AUTH_PEND, | |
19f8def0 | 464 | HCI_CONN_REAUTH_PEND, |
1da177e4 | 465 | HCI_CONN_ENCRYPT_PEND, |
04837f64 MH |
466 | HCI_CONN_RSWITCH_PEND, |
467 | HCI_CONN_MODE_CHANGE_PEND, | |
e73439d8 | 468 | HCI_CONN_SCO_SETUP_PEND, |
d26a2345 | 469 | HCI_CONN_LE_SMP_PEND, |
b644ba33 | 470 | HCI_CONN_MGMT_CONNECTED, |
58a681ef | 471 | HCI_CONN_SSP_ENABLED, |
eb9a8f3f | 472 | HCI_CONN_SC_ENABLED, |
abf76bad | 473 | HCI_CONN_AES_CCM, |
58a681ef JH |
474 | HCI_CONN_POWER_SAVE, |
475 | HCI_CONN_REMOTE_OOB, | |
18722c24 | 476 | HCI_CONN_6LOWPAN, |
1da177e4 LT |
477 | }; |
478 | ||
aa64a8b5 JH |
479 | static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
480 | { | |
481 | struct hci_dev *hdev = conn->hdev; | |
c3c7ea65 GP |
482 | return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && |
483 | test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); | |
aa64a8b5 JH |
484 | } |
485 | ||
eb9a8f3f MH |
486 | static inline bool hci_conn_sc_enabled(struct hci_conn *conn) |
487 | { | |
488 | struct hci_dev *hdev = conn->hdev; | |
489 | return test_bit(HCI_SC_ENABLED, &hdev->dev_flags) && | |
490 | test_bit(HCI_CONN_SC_ENABLED, &conn->flags); | |
491 | } | |
492 | ||
1da177e4 LT |
493 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
494 | { | |
495 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 | 496 | list_add_rcu(&c->list, &h->list); |
fcd89c09 VT |
497 | switch (c->type) { |
498 | case ACL_LINK: | |
1da177e4 | 499 | h->acl_num++; |
fcd89c09 | 500 | break; |
bd1eb66b AE |
501 | case AMP_LINK: |
502 | h->amp_num++; | |
503 | break; | |
fcd89c09 VT |
504 | case LE_LINK: |
505 | h->le_num++; | |
506 | break; | |
507 | case SCO_LINK: | |
508 | case ESCO_LINK: | |
1da177e4 | 509 | h->sco_num++; |
fcd89c09 VT |
510 | break; |
511 | } | |
1da177e4 LT |
512 | } |
513 | ||
514 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) | |
515 | { | |
516 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 GP |
517 | |
518 | list_del_rcu(&c->list); | |
519 | synchronize_rcu(); | |
520 | ||
fcd89c09 VT |
521 | switch (c->type) { |
522 | case ACL_LINK: | |
1da177e4 | 523 | h->acl_num--; |
fcd89c09 | 524 | break; |
bd1eb66b AE |
525 | case AMP_LINK: |
526 | h->amp_num--; | |
527 | break; | |
fcd89c09 VT |
528 | case LE_LINK: |
529 | h->le_num--; | |
530 | break; | |
531 | case SCO_LINK: | |
532 | case ESCO_LINK: | |
1da177e4 | 533 | h->sco_num--; |
fcd89c09 VT |
534 | break; |
535 | } | |
1da177e4 LT |
536 | } |
537 | ||
52087a79 LAD |
538 | static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
539 | { | |
540 | struct hci_conn_hash *h = &hdev->conn_hash; | |
541 | switch (type) { | |
542 | case ACL_LINK: | |
543 | return h->acl_num; | |
bd1eb66b AE |
544 | case AMP_LINK: |
545 | return h->amp_num; | |
52087a79 LAD |
546 | case LE_LINK: |
547 | return h->le_num; | |
548 | case SCO_LINK: | |
549 | case ESCO_LINK: | |
550 | return h->sco_num; | |
551 | default: | |
552 | return 0; | |
553 | } | |
554 | } | |
555 | ||
1da177e4 | 556 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
adc4266d | 557 | __u16 handle) |
1da177e4 LT |
558 | { |
559 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
560 | struct hci_conn *c; |
561 | ||
bf4c6325 GP |
562 | rcu_read_lock(); |
563 | ||
564 | list_for_each_entry_rcu(c, &h->list, list) { | |
565 | if (c->handle == handle) { | |
566 | rcu_read_unlock(); | |
1da177e4 | 567 | return c; |
bf4c6325 | 568 | } |
1da177e4 | 569 | } |
bf4c6325 GP |
570 | rcu_read_unlock(); |
571 | ||
1da177e4 LT |
572 | return NULL; |
573 | } | |
574 | ||
575 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, | |
adc4266d | 576 | __u8 type, bdaddr_t *ba) |
1da177e4 LT |
577 | { |
578 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
579 | struct hci_conn *c; |
580 | ||
bf4c6325 GP |
581 | rcu_read_lock(); |
582 | ||
583 | list_for_each_entry_rcu(c, &h->list, list) { | |
584 | if (c->type == type && !bacmp(&c->dst, ba)) { | |
585 | rcu_read_unlock(); | |
1da177e4 | 586 | return c; |
bf4c6325 | 587 | } |
1da177e4 | 588 | } |
bf4c6325 GP |
589 | |
590 | rcu_read_unlock(); | |
591 | ||
1da177e4 LT |
592 | return NULL; |
593 | } | |
594 | ||
4c67bc74 | 595 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
adc4266d | 596 | __u8 type, __u16 state) |
4c67bc74 MH |
597 | { |
598 | struct hci_conn_hash *h = &hdev->conn_hash; | |
4c67bc74 MH |
599 | struct hci_conn *c; |
600 | ||
bf4c6325 GP |
601 | rcu_read_lock(); |
602 | ||
603 | list_for_each_entry_rcu(c, &h->list, list) { | |
604 | if (c->type == type && c->state == state) { | |
605 | rcu_read_unlock(); | |
4c67bc74 | 606 | return c; |
bf4c6325 | 607 | } |
4c67bc74 | 608 | } |
73d80deb | 609 | |
bf4c6325 | 610 | rcu_read_unlock(); |
73d80deb | 611 | |
4c67bc74 | 612 | return NULL; |
73d80deb LAD |
613 | } |
614 | ||
bed71748 | 615 | void hci_disconnect(struct hci_conn *conn, __u8 reason); |
2dea632f | 616 | bool hci_setup_sync(struct hci_conn *conn, __u16 handle); |
e73439d8 | 617 | void hci_sco_setup(struct hci_conn *conn, __u8 status); |
1da177e4 LT |
618 | |
619 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); | |
a9de9248 MH |
620 | int hci_conn_del(struct hci_conn *conn); |
621 | void hci_conn_hash_flush(struct hci_dev *hdev); | |
622 | void hci_conn_check_pending(struct hci_dev *hdev); | |
1da177e4 | 623 | |
73d80deb | 624 | struct hci_chan *hci_chan_create(struct hci_conn *conn); |
9472007c | 625 | void hci_chan_del(struct hci_chan *chan); |
2c33c06a | 626 | void hci_chan_list_flush(struct hci_conn *conn); |
42c4e53e | 627 | struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); |
73d80deb | 628 | |
5a9d0a3f | 629 | struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, |
b12f62cf | 630 | __u8 dst_type, __u8 sec_level, __u8 auth_type); |
10c62ddc FD |
631 | struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, |
632 | __u16 setting); | |
e7c29cb1 | 633 | int hci_conn_check_link_mode(struct hci_conn *conn); |
b3b1b061 | 634 | int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); |
0684e5f9 | 635 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); |
1da177e4 | 636 | int hci_conn_change_link_key(struct hci_conn *conn); |
8c1b2355 | 637 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
1da177e4 | 638 | |
14b12d0b | 639 | void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); |
1da177e4 | 640 | |
8d12356f DH |
641 | /* |
642 | * hci_conn_get() and hci_conn_put() are used to control the life-time of an | |
643 | * "hci_conn" object. They do not guarantee that the hci_conn object is running, | |
644 | * working or anything else. They just guarantee that the object is available | |
645 | * and can be dereferenced. So you can use its locks, local variables and any | |
646 | * other constant data. | |
647 | * Before accessing runtime data, you _must_ lock the object and then check that | |
648 | * it is still running. As soon as you release the locks, the connection might | |
649 | * get dropped, though. | |
650 | * | |
651 | * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control | |
652 | * how long the underlying connection is held. So every channel that runs on the | |
653 | * hci_conn object calls this to prevent the connection from disappearing. As | |
654 | * long as you hold a device, you must also guarantee that you have a valid | |
655 | * reference to the device via hci_conn_get() (or the initial reference from | |
656 | * hci_conn_add()). | |
657 | * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't | |
658 | * break because nobody cares for that. But this means, we cannot use | |
659 | * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). | |
660 | */ | |
661 | ||
662 | static inline void hci_conn_get(struct hci_conn *conn) | |
663 | { | |
664 | get_device(&conn->dev); | |
665 | } | |
666 | ||
667 | static inline void hci_conn_put(struct hci_conn *conn) | |
668 | { | |
669 | put_device(&conn->dev); | |
670 | } | |
671 | ||
1da177e4 LT |
672 | static inline void hci_conn_hold(struct hci_conn *conn) |
673 | { | |
71becf0c | 674 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 675 | |
1da177e4 | 676 | atomic_inc(&conn->refcnt); |
2f304d1e | 677 | cancel_delayed_work(&conn->disc_work); |
1da177e4 LT |
678 | } |
679 | ||
76a68ba0 | 680 | static inline void hci_conn_drop(struct hci_conn *conn) |
1da177e4 | 681 | { |
71becf0c | 682 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 683 | |
1da177e4 | 684 | if (atomic_dec_and_test(&conn->refcnt)) { |
04837f64 | 685 | unsigned long timeo; |
716e4ab5 AE |
686 | |
687 | switch (conn->type) { | |
688 | case ACL_LINK: | |
689 | case LE_LINK: | |
a74a84f6 | 690 | cancel_delayed_work(&conn->idle_work); |
6ac59344 | 691 | if (conn->state == BT_CONNECTED) { |
5f246e89 | 692 | timeo = conn->disc_timeout; |
6ac59344 | 693 | if (!conn->out) |
052b30b0 | 694 | timeo *= 2; |
5a9d0a3f | 695 | } else { |
6ac59344 | 696 | timeo = msecs_to_jiffies(10); |
5a9d0a3f | 697 | } |
716e4ab5 AE |
698 | break; |
699 | ||
700 | case AMP_LINK: | |
701 | timeo = conn->disc_timeout; | |
702 | break; | |
703 | ||
704 | default: | |
04837f64 | 705 | timeo = msecs_to_jiffies(10); |
716e4ab5 | 706 | break; |
5a9d0a3f | 707 | } |
716e4ab5 | 708 | |
2f304d1e | 709 | cancel_delayed_work(&conn->disc_work); |
19c40e3b | 710 | queue_delayed_work(conn->hdev->workqueue, |
716e4ab5 | 711 | &conn->disc_work, timeo); |
1da177e4 LT |
712 | } |
713 | } | |
714 | ||
1da177e4 | 715 | /* ----- HCI Devices ----- */ |
dc946bd8 | 716 | static inline void hci_dev_put(struct hci_dev *d) |
1da177e4 | 717 | { |
376261ae AE |
718 | BT_DBG("%s orig refcnt %d", d->name, |
719 | atomic_read(&d->dev.kobj.kref.refcount)); | |
720 | ||
4c724c71 | 721 | put_device(&d->dev); |
1da177e4 LT |
722 | } |
723 | ||
dc946bd8 | 724 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
1da177e4 | 725 | { |
376261ae AE |
726 | BT_DBG("%s orig refcnt %d", d->name, |
727 | atomic_read(&d->dev.kobj.kref.refcount)); | |
728 | ||
4c724c71 | 729 | get_device(&d->dev); |
1da177e4 LT |
730 | return d; |
731 | } | |
732 | ||
09fd0de5 GP |
733 | #define hci_dev_lock(d) mutex_lock(&d->lock) |
734 | #define hci_dev_unlock(d) mutex_unlock(&d->lock) | |
1da177e4 | 735 | |
aa2b86d7 | 736 | #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
3dc07322 | 737 | #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
aa2b86d7 | 738 | |
155961e8 DH |
739 | static inline void *hci_get_drvdata(struct hci_dev *hdev) |
740 | { | |
741 | return dev_get_drvdata(&hdev->dev); | |
742 | } | |
743 | ||
744 | static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) | |
745 | { | |
746 | dev_set_drvdata(&hdev->dev, data); | |
747 | } | |
748 | ||
1da177e4 | 749 | struct hci_dev *hci_dev_get(int index); |
0c0afedf | 750 | struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); |
1da177e4 LT |
751 | |
752 | struct hci_dev *hci_alloc_dev(void); | |
753 | void hci_free_dev(struct hci_dev *hdev); | |
754 | int hci_register_dev(struct hci_dev *hdev); | |
59735631 | 755 | void hci_unregister_dev(struct hci_dev *hdev); |
1da177e4 LT |
756 | int hci_suspend_dev(struct hci_dev *hdev); |
757 | int hci_resume_dev(struct hci_dev *hdev); | |
758 | int hci_dev_open(__u16 dev); | |
759 | int hci_dev_close(__u16 dev); | |
760 | int hci_dev_reset(__u16 dev); | |
761 | int hci_dev_reset_stat(__u16 dev); | |
762 | int hci_dev_cmd(unsigned int cmd, void __user *arg); | |
763 | int hci_get_dev_list(void __user *arg); | |
764 | int hci_get_dev_info(void __user *arg); | |
765 | int hci_get_conn_list(void __user *arg); | |
766 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); | |
40be492f | 767 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
1da177e4 LT |
768 | int hci_inquiry(void __user *arg); |
769 | ||
c3c7ea65 | 770 | struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, |
b9ee0a78 | 771 | bdaddr_t *bdaddr, u8 type); |
35f7498a | 772 | void hci_blacklist_clear(struct hci_dev *hdev); |
88c1fe4b JH |
773 | int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
774 | int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
f0358568 | 775 | |
15819a70 AG |
776 | struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, |
777 | bdaddr_t *addr, u8 addr_type); | |
778 | void hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type, | |
779 | u16 conn_min_interval, u16 conn_max_interval); | |
780 | void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); | |
781 | void hci_conn_params_clear(struct hci_dev *hdev); | |
782 | ||
35f7498a | 783 | void hci_uuids_clear(struct hci_dev *hdev); |
2aeb9a1a | 784 | |
35f7498a | 785 | void hci_link_keys_clear(struct hci_dev *hdev); |
55ed8ca1 | 786 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
d25e28ab | 787 | int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, |
04124681 | 788 | bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); |
98a0b845 JH |
789 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8], |
790 | bool master); | |
ca9142b8 | 791 | struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
35d70271 JH |
792 | u8 addr_type, u8 type, u8 authenticated, |
793 | u8 tk[16], u8 enc_size, __le16 ediv, u8 rand[8]); | |
c9839a11 | 794 | struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
98a0b845 | 795 | u8 addr_type, bool master); |
e0b2b27e | 796 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); |
35f7498a | 797 | void hci_smp_ltks_clear(struct hci_dev *hdev); |
55ed8ca1 JH |
798 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
799 | ||
970c4e46 JH |
800 | struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); |
801 | struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
802 | u8 addr_type); | |
ca9142b8 JH |
803 | struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
804 | u8 addr_type, u8 val[16], bdaddr_t *rpa); | |
a7ec7338 | 805 | void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); |
970c4e46 JH |
806 | void hci_smp_irks_clear(struct hci_dev *hdev); |
807 | ||
35f7498a | 808 | void hci_remote_oob_data_clear(struct hci_dev *hdev); |
2763eda6 | 809 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, |
0798872e MH |
810 | bdaddr_t *bdaddr); |
811 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
812 | u8 *hash, u8 *randomizer); | |
813 | int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
814 | u8 *hash192, u8 *randomizer192, | |
815 | u8 *hash256, u8 *randomizer256); | |
2763eda6 SJ |
816 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); |
817 | ||
1da177e4 LT |
818 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
819 | ||
e1a26170 | 820 | int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); |
ef222013 | 821 | int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); |
99811510 | 822 | int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); |
ef222013 | 823 | |
0ac7e700 | 824 | void hci_init_sysfs(struct hci_dev *hdev); |
a67e899c | 825 | void hci_conn_init_sysfs(struct hci_conn *conn); |
b219e3ac MH |
826 | void hci_conn_add_sysfs(struct hci_conn *conn); |
827 | void hci_conn_del_sysfs(struct hci_conn *conn); | |
1da177e4 | 828 | |
6935e0f5 | 829 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
1da177e4 LT |
830 | |
831 | /* ----- LMP capabilities ----- */ | |
cad718ed JH |
832 | #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) |
833 | #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) | |
834 | #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) | |
835 | #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) | |
836 | #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) | |
837 | #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) | |
838 | #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) | |
839 | #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) | |
840 | #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) | |
841 | #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) | |
842 | #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) | |
843 | #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) | |
844 | #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) | |
845 | #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) | |
846 | #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) | |
847 | #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) | |
848 | #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) | |
849 | #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) | |
07a5c61e | 850 | #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) |
1da177e4 | 851 | |
eead27da | 852 | /* ----- Extended LMP capabilities ----- */ |
53b834d2 MH |
853 | #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) |
854 | #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) | |
855 | #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) | |
856 | #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) | |
d5991585 MH |
857 | #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) |
858 | #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) | |
53b834d2 MH |
859 | |
860 | /* ----- Host capabilities ----- */ | |
cad718ed | 861 | #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) |
d5991585 | 862 | #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) |
cad718ed JH |
863 | #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) |
864 | #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) | |
eead27da | 865 | |
1da177e4 | 866 | /* ----- HCI protocols ----- */ |
20714bfe FD |
867 | #define HCI_PROTO_DEFER 0x01 |
868 | ||
5a9d0a3f | 869 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
20714bfe | 870 | __u8 type, __u8 *flags) |
1da177e4 | 871 | { |
686ebf28 UF |
872 | switch (type) { |
873 | case ACL_LINK: | |
874 | return l2cap_connect_ind(hdev, bdaddr); | |
1da177e4 | 875 | |
686ebf28 UF |
876 | case SCO_LINK: |
877 | case ESCO_LINK: | |
20714bfe | 878 | return sco_connect_ind(hdev, bdaddr, flags); |
1da177e4 | 879 | |
686ebf28 UF |
880 | default: |
881 | BT_ERR("unknown link type %d", type); | |
882 | return -EINVAL; | |
883 | } | |
1da177e4 LT |
884 | } |
885 | ||
886 | static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) | |
887 | { | |
686ebf28 UF |
888 | switch (conn->type) { |
889 | case ACL_LINK: | |
890 | case LE_LINK: | |
891 | l2cap_connect_cfm(conn, status); | |
892 | break; | |
1da177e4 | 893 | |
686ebf28 UF |
894 | case SCO_LINK: |
895 | case ESCO_LINK: | |
896 | sco_connect_cfm(conn, status); | |
897 | break; | |
1da177e4 | 898 | |
686ebf28 UF |
899 | default: |
900 | BT_ERR("unknown link type %d", conn->type); | |
901 | break; | |
902 | } | |
e9a416b5 JH |
903 | |
904 | if (conn->connect_cfm_cb) | |
905 | conn->connect_cfm_cb(conn, status); | |
1da177e4 LT |
906 | } |
907 | ||
2950f21a | 908 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
1da177e4 | 909 | { |
686ebf28 UF |
910 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
911 | return HCI_ERROR_REMOTE_USER_TERM; | |
1da177e4 | 912 | |
686ebf28 | 913 | return l2cap_disconn_ind(conn); |
2950f21a MH |
914 | } |
915 | ||
916 | static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) | |
917 | { | |
686ebf28 UF |
918 | switch (conn->type) { |
919 | case ACL_LINK: | |
920 | case LE_LINK: | |
921 | l2cap_disconn_cfm(conn, reason); | |
922 | break; | |
2950f21a | 923 | |
686ebf28 UF |
924 | case SCO_LINK: |
925 | case ESCO_LINK: | |
926 | sco_disconn_cfm(conn, reason); | |
927 | break; | |
2950f21a | 928 | |
bd1eb66b AE |
929 | /* L2CAP would be handled for BREDR chan */ |
930 | case AMP_LINK: | |
931 | break; | |
932 | ||
686ebf28 UF |
933 | default: |
934 | BT_ERR("unknown link type %d", conn->type); | |
935 | break; | |
936 | } | |
e9a416b5 JH |
937 | |
938 | if (conn->disconn_cfm_cb) | |
939 | conn->disconn_cfm_cb(conn, reason); | |
1da177e4 LT |
940 | } |
941 | ||
942 | static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) | |
943 | { | |
8c1b2355 MH |
944 | __u8 encrypt; |
945 | ||
686ebf28 UF |
946 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
947 | return; | |
948 | ||
51a8efd7 | 949 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
950 | return; |
951 | ||
952 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
686ebf28 | 953 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
954 | |
955 | if (conn->security_cfm_cb) | |
956 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
957 | } |
958 | ||
5a9d0a3f WR |
959 | static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, |
960 | __u8 encrypt) | |
1da177e4 | 961 | { |
686ebf28 UF |
962 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
963 | return; | |
1da177e4 | 964 | |
686ebf28 | 965 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
966 | |
967 | if (conn->security_cfm_cb) | |
968 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
969 | } |
970 | ||
1da177e4 LT |
971 | /* ----- HCI callbacks ----- */ |
972 | struct hci_cb { | |
973 | struct list_head list; | |
974 | ||
975 | char *name; | |
976 | ||
5a9d0a3f WR |
977 | void (*security_cfm) (struct hci_conn *conn, __u8 status, |
978 | __u8 encrypt); | |
1da177e4 LT |
979 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
980 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); | |
981 | }; | |
982 | ||
983 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) | |
984 | { | |
711584ea | 985 | struct hci_cb *cb; |
8c1b2355 | 986 | __u8 encrypt; |
1da177e4 LT |
987 | |
988 | hci_proto_auth_cfm(conn, status); | |
989 | ||
51a8efd7 | 990 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
991 | return; |
992 | ||
993 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
994 | ||
f20d09d5 | 995 | read_lock(&hci_cb_list_lock); |
711584ea | 996 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
997 | if (cb->security_cfm) |
998 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 999 | } |
f20d09d5 | 1000 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1001 | } |
1002 | ||
5a9d0a3f WR |
1003 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, |
1004 | __u8 encrypt) | |
1da177e4 | 1005 | { |
711584ea | 1006 | struct hci_cb *cb; |
1da177e4 | 1007 | |
435fef20 MH |
1008 | if (conn->sec_level == BT_SECURITY_SDP) |
1009 | conn->sec_level = BT_SECURITY_LOW; | |
1010 | ||
88167aed VCG |
1011 | if (conn->pending_sec_level > conn->sec_level) |
1012 | conn->sec_level = conn->pending_sec_level; | |
1013 | ||
9719f8af | 1014 | hci_proto_encrypt_cfm(conn, status, encrypt); |
1da177e4 | 1015 | |
f20d09d5 | 1016 | read_lock(&hci_cb_list_lock); |
711584ea | 1017 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
1018 | if (cb->security_cfm) |
1019 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 1020 | } |
f20d09d5 | 1021 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1022 | } |
1023 | ||
1024 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) | |
1025 | { | |
711584ea | 1026 | struct hci_cb *cb; |
1da177e4 | 1027 | |
f20d09d5 | 1028 | read_lock(&hci_cb_list_lock); |
711584ea | 1029 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
1030 | if (cb->key_change_cfm) |
1031 | cb->key_change_cfm(conn, status); | |
1032 | } | |
f20d09d5 | 1033 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1034 | } |
1035 | ||
5a9d0a3f WR |
1036 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
1037 | __u8 role) | |
1da177e4 | 1038 | { |
711584ea | 1039 | struct hci_cb *cb; |
1da177e4 | 1040 | |
f20d09d5 | 1041 | read_lock(&hci_cb_list_lock); |
711584ea | 1042 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
1043 | if (cb->role_switch_cfm) |
1044 | cb->role_switch_cfm(conn, status, role); | |
1045 | } | |
f20d09d5 | 1046 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1047 | } |
1048 | ||
6759a675 JH |
1049 | static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) |
1050 | { | |
84d9d071 | 1051 | size_t parsed = 0; |
6759a675 | 1052 | |
6c0c331e JH |
1053 | if (data_len < 2) |
1054 | return false; | |
1055 | ||
84d9d071 JH |
1056 | while (parsed < data_len - 1) { |
1057 | u8 field_len = data[0]; | |
6759a675 JH |
1058 | |
1059 | if (field_len == 0) | |
1060 | break; | |
1061 | ||
1062 | parsed += field_len + 1; | |
1063 | ||
1064 | if (parsed > data_len) | |
1065 | break; | |
1066 | ||
1067 | if (data[1] == type) | |
1068 | return true; | |
1069 | ||
1070 | data += field_len + 1; | |
1071 | } | |
1072 | ||
1073 | return false; | |
1074 | } | |
1075 | ||
301cb2d8 JH |
1076 | static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) |
1077 | { | |
1078 | if (addr_type != 0x01) | |
1079 | return false; | |
1080 | ||
1081 | if ((bdaddr->b[5] & 0xc0) == 0x40) | |
1082 | return true; | |
1083 | ||
1084 | return false; | |
1085 | } | |
1086 | ||
2426f3a5 JH |
1087 | static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, |
1088 | bdaddr_t *bdaddr, u8 addr_type) | |
1089 | { | |
1090 | if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) | |
1091 | return NULL; | |
1092 | ||
1093 | return hci_find_irk_by_rpa(hdev, bdaddr); | |
1094 | } | |
1095 | ||
1da177e4 LT |
1096 | int hci_register_cb(struct hci_cb *hcb); |
1097 | int hci_unregister_cb(struct hci_cb *hcb); | |
1098 | ||
3119ae95 JH |
1099 | struct hci_request { |
1100 | struct hci_dev *hdev; | |
1101 | struct sk_buff_head cmd_q; | |
5d73e034 AG |
1102 | |
1103 | /* If something goes wrong when building the HCI request, the error | |
1104 | * value is stored in this field. | |
1105 | */ | |
1106 | int err; | |
3119ae95 JH |
1107 | }; |
1108 | ||
1109 | void hci_req_init(struct hci_request *req, struct hci_dev *hdev); | |
1110 | int hci_req_run(struct hci_request *req, hci_req_complete_t complete); | |
07dc93dd JH |
1111 | void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, |
1112 | const void *param); | |
1113 | void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, | |
1114 | const void *param, u8 event); | |
9238f36a | 1115 | void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); |
3119ae95 | 1116 | |
75e84b7c | 1117 | struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1118 | const void *param, u32 timeout); |
7b1abbbe | 1119 | struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1120 | const void *param, u8 event, u32 timeout); |
75e84b7c | 1121 | |
07dc93dd JH |
1122 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, |
1123 | const void *param); | |
73d80deb | 1124 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
0d861d8b | 1125 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
1da177e4 | 1126 | |
a9de9248 | 1127 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
1da177e4 | 1128 | |
1da177e4 | 1129 | /* ----- HCI Sockets ----- */ |
470fe1b5 MH |
1130 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
1131 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); | |
cd82e61c | 1132 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 1133 | |
040030ef MH |
1134 | void hci_sock_dev_event(struct hci_dev *hdev, int event); |
1135 | ||
0381101f | 1136 | /* Management interface */ |
591f47f3 AG |
1137 | #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
1138 | #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ | |
1139 | BIT(BDADDR_LE_RANDOM)) | |
1140 | #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ | |
1141 | BIT(BDADDR_LE_PUBLIC) | \ | |
1142 | BIT(BDADDR_LE_RANDOM)) | |
f39799f5 | 1143 | |
0d8cc935 AG |
1144 | /* These LE scan and inquiry parameters were chosen according to LE General |
1145 | * Discovery Procedure specification. | |
1146 | */ | |
1147 | #define DISCOV_LE_SCAN_WIN 0x12 | |
1148 | #define DISCOV_LE_SCAN_INT 0x12 | |
1149 | #define DISCOV_LE_TIMEOUT msecs_to_jiffies(10240) | |
1150 | #define DISCOV_INTERLEAVED_TIMEOUT msecs_to_jiffies(5120) | |
1151 | #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 | |
1152 | #define DISCOV_BREDR_INQUIRY_LEN 0x08 | |
1153 | ||
0381101f | 1154 | int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); |
bf6b56db MH |
1155 | void mgmt_index_added(struct hci_dev *hdev); |
1156 | void mgmt_index_removed(struct hci_dev *hdev); | |
3eec705e | 1157 | void mgmt_set_powered_failed(struct hci_dev *hdev, int err); |
744cf19e | 1158 | int mgmt_powered(struct hci_dev *hdev, u8 powered); |
d1967ff8 | 1159 | void mgmt_discoverable_timeout(struct hci_dev *hdev); |
86a75645 | 1160 | void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); |
a330916c | 1161 | void mgmt_connectable(struct hci_dev *hdev, u8 connectable); |
4796e8af | 1162 | void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); |
dc4a5ee2 MH |
1163 | void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, |
1164 | bool persistent); | |
ecd90ae7 MH |
1165 | void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1166 | u8 addr_type, u32 flags, u8 *name, u8 name_len, | |
1167 | u8 *dev_class); | |
9b80ec5e MH |
1168 | void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1169 | u8 link_type, u8 addr_type, u8 reason); | |
7892924c MH |
1170 | void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1171 | u8 link_type, u8 addr_type, u8 status); | |
445608d0 MH |
1172 | void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1173 | u8 addr_type, u8 status); | |
ce0e4a0d | 1174 | void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
e669cf80 MH |
1175 | void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1176 | u8 status); | |
3eb38528 MH |
1177 | void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1178 | u8 status); | |
744cf19e | 1179 | int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 GP |
1180 | u8 link_type, u8 addr_type, __le32 value, |
1181 | u8 confirm_hint); | |
744cf19e | 1182 | int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1183 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1184 | int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1185 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1186 | int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1187 | u8 link_type, u8 addr_type); |
604086b7 | 1188 | int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1189 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1190 | int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1191 | u8 link_type, u8 addr_type, u8 status); |
92a25256 JH |
1192 | int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1193 | u8 link_type, u8 addr_type, u32 passkey, | |
1194 | u8 entered); | |
e546099c MH |
1195 | void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1196 | u8 addr_type, u8 status); | |
464996ae | 1197 | void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
3e248560 | 1198 | void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
eac83dc6 | 1199 | void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
4e1b0245 MH |
1200 | void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
1201 | u8 status); | |
7667da34 | 1202 | void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
4d2d2796 MH |
1203 | void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192, |
1204 | u8 *randomizer192, u8 *hash256, | |
1205 | u8 *randomizer256, u8 status); | |
901801b9 MH |
1206 | void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1207 | u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, | |
1208 | u8 ssp, u8 *eir, u16 eir_len); | |
9cf12aee MH |
1209 | void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1210 | u8 addr_type, s8 rssi, u8 *name, u8 name_len); | |
2f1e063b | 1211 | void mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
88c1fe4b JH |
1212 | int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
1213 | int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
ba74b666 | 1214 | void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key); |
95fbac8a | 1215 | void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk); |
5976e608 | 1216 | void mgmt_reenable_advertising(struct hci_dev *hdev); |
f4a407be | 1217 | void mgmt_smp_complete(struct hci_conn *conn, bool complete); |
346af67b | 1218 | |
1da177e4 LT |
1219 | /* HCI info for socket */ |
1220 | #define hci_pi(sk) ((struct hci_pinfo *) sk) | |
1221 | ||
1222 | struct hci_pinfo { | |
1223 | struct bt_sock bt; | |
1224 | struct hci_dev *hdev; | |
1225 | struct hci_filter filter; | |
1226 | __u32 cmsg_mask; | |
c02178d2 | 1227 | unsigned short channel; |
1da177e4 LT |
1228 | }; |
1229 | ||
1230 | /* HCI security filter */ | |
1231 | #define HCI_SFLT_MAX_OGF 5 | |
1232 | ||
1233 | struct hci_sec_filter { | |
1234 | __u32 type_mask; | |
1235 | __u32 event_mask[2]; | |
1236 | __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; | |
1237 | }; | |
1238 | ||
1239 | /* ----- HCI requests ----- */ | |
1240 | #define HCI_REQ_DONE 0 | |
1241 | #define HCI_REQ_PEND 1 | |
1242 | #define HCI_REQ_CANCELED 2 | |
1243 | ||
a6a67efd TG |
1244 | #define hci_req_lock(d) mutex_lock(&d->req_lock) |
1245 | #define hci_req_unlock(d) mutex_unlock(&d->req_lock) | |
1da177e4 | 1246 | |
2ce603eb CT |
1247 | void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, |
1248 | u16 latency, u16 to_multiplier); | |
a7a595f6 VCG |
1249 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], |
1250 | __u8 ltk[16]); | |
2519a1fc | 1251 | |
5d4d62f6 FD |
1252 | #define SCO_AIRMODE_MASK 0x0003 |
1253 | #define SCO_AIRMODE_CVSD 0x0000 | |
1254 | #define SCO_AIRMODE_TRANSP 0x0003 | |
1255 | ||
1da177e4 | 1256 | #endif /* __HCI_CORE_H */ |