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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 | ||
6d5d2ee6 | 28 | #include <linux/leds.h> |
b2d09103 IM |
29 | #include <linux/rculist.h> |
30 | ||
1da177e4 | 31 | #include <net/bluetooth/hci.h> |
f49daa81 | 32 | #include <net/bluetooth/hci_sock.h> |
1da177e4 | 33 | |
5e59b791 LAD |
34 | /* HCI priority */ |
35 | #define HCI_PRIO_MAX 7 | |
36 | ||
1da177e4 | 37 | /* HCI Core structures */ |
1da177e4 LT |
38 | struct inquiry_data { |
39 | bdaddr_t bdaddr; | |
40 | __u8 pscan_rep_mode; | |
41 | __u8 pscan_period_mode; | |
42 | __u8 pscan_mode; | |
43 | __u8 dev_class[3]; | |
1ebb9252 | 44 | __le16 clock_offset; |
1da177e4 | 45 | __s8 rssi; |
41a96212 | 46 | __u8 ssp_mode; |
1da177e4 LT |
47 | }; |
48 | ||
49 | struct inquiry_entry { | |
561aafbc JH |
50 | struct list_head all; /* inq_cache.all */ |
51 | struct list_head list; /* unknown or resolve */ | |
52 | enum { | |
53 | NAME_NOT_KNOWN, | |
54 | NAME_NEEDED, | |
55 | NAME_PENDING, | |
56 | NAME_KNOWN, | |
57 | } name_state; | |
1da177e4 LT |
58 | __u32 timestamp; |
59 | struct inquiry_data data; | |
60 | }; | |
61 | ||
30883512 | 62 | struct discovery_state { |
f64b993f | 63 | int type; |
ff9ef578 JH |
64 | enum { |
65 | DISCOVERY_STOPPED, | |
66 | DISCOVERY_STARTING, | |
343f935b | 67 | DISCOVERY_FINDING, |
30dc78e1 | 68 | DISCOVERY_RESOLVING, |
ff9ef578 JH |
69 | DISCOVERY_STOPPING, |
70 | } state; | |
c3c7ea65 | 71 | struct list_head all; /* All devices found during inquiry */ |
f64b993f GP |
72 | struct list_head unknown; /* Name state not known */ |
73 | struct list_head resolve; /* Name needs to be resolved */ | |
74 | __u32 timestamp; | |
b9a6328f JH |
75 | bdaddr_t last_adv_addr; |
76 | u8 last_adv_addr_type; | |
ff5cd29f | 77 | s8 last_adv_rssi; |
c70a7e4c | 78 | u32 last_adv_flags; |
b9a6328f JH |
79 | u8 last_adv_data[HCI_MAX_AD_LENGTH]; |
80 | u8 last_adv_data_len; | |
da25cf6a | 81 | bool report_invalid_rssi; |
82f8b651 | 82 | bool result_filtering; |
78b781ca | 83 | bool limited; |
37eab042 JP |
84 | s8 rssi; |
85 | u16 uuid_count; | |
86 | u8 (*uuids)[16]; | |
2d28cfe7 JP |
87 | unsigned long scan_start; |
88 | unsigned long scan_duration; | |
1da177e4 LT |
89 | }; |
90 | ||
91 | struct hci_conn_hash { | |
92 | struct list_head list; | |
1da177e4 | 93 | unsigned int acl_num; |
bd1eb66b | 94 | unsigned int amp_num; |
1da177e4 | 95 | unsigned int sco_num; |
fcd89c09 | 96 | unsigned int le_num; |
f8218dc6 | 97 | unsigned int le_num_slave; |
1da177e4 LT |
98 | }; |
99 | ||
f0358568 JH |
100 | struct bdaddr_list { |
101 | struct list_head list; | |
102 | bdaddr_t bdaddr; | |
b9ee0a78 | 103 | u8 bdaddr_type; |
f0358568 | 104 | }; |
2aeb9a1a JH |
105 | |
106 | struct bt_uuid { | |
107 | struct list_head list; | |
108 | u8 uuid[16]; | |
83be8eca | 109 | u8 size; |
1aff6f09 | 110 | u8 svc_hint; |
2aeb9a1a JH |
111 | }; |
112 | ||
7ee4ea36 MH |
113 | struct smp_csrk { |
114 | bdaddr_t bdaddr; | |
115 | u8 bdaddr_type; | |
4cd3928a | 116 | u8 type; |
7ee4ea36 MH |
117 | u8 val[16]; |
118 | }; | |
119 | ||
b899efaf VCG |
120 | struct smp_ltk { |
121 | struct list_head list; | |
970d0f1b | 122 | struct rcu_head rcu; |
b899efaf VCG |
123 | bdaddr_t bdaddr; |
124 | u8 bdaddr_type; | |
125 | u8 authenticated; | |
126 | u8 type; | |
127 | u8 enc_size; | |
128 | __le16 ediv; | |
fe39c7b2 | 129 | __le64 rand; |
b899efaf | 130 | u8 val[16]; |
03c515d7 | 131 | }; |
b899efaf | 132 | |
970c4e46 JH |
133 | struct smp_irk { |
134 | struct list_head list; | |
adae20cb | 135 | struct rcu_head rcu; |
970c4e46 JH |
136 | bdaddr_t rpa; |
137 | bdaddr_t bdaddr; | |
138 | u8 addr_type; | |
139 | u8 val[16]; | |
140 | }; | |
141 | ||
55ed8ca1 JH |
142 | struct link_key { |
143 | struct list_head list; | |
0378b597 | 144 | struct rcu_head rcu; |
55ed8ca1 JH |
145 | bdaddr_t bdaddr; |
146 | u8 type; | |
9b3b4460 | 147 | u8 val[HCI_LINK_KEY_SIZE]; |
55ed8ca1 JH |
148 | u8 pin_len; |
149 | }; | |
150 | ||
2763eda6 SJ |
151 | struct oob_data { |
152 | struct list_head list; | |
153 | bdaddr_t bdaddr; | |
6928a924 | 154 | u8 bdaddr_type; |
f7697b16 | 155 | u8 present; |
519ca9d0 | 156 | u8 hash192[16]; |
38da1703 | 157 | u8 rand192[16]; |
519ca9d0 | 158 | u8 hash256[16]; |
38da1703 | 159 | u8 rand256[16]; |
2763eda6 SJ |
160 | }; |
161 | ||
203fea01 | 162 | struct adv_info { |
d2609b34 | 163 | struct list_head list; |
fffd38bc | 164 | bool pending; |
203fea01 AU |
165 | __u8 instance; |
166 | __u32 flags; | |
912098a6 | 167 | __u16 timeout; |
5d900e46 | 168 | __u16 remaining_time; |
d2609b34 | 169 | __u16 duration; |
203fea01 AU |
170 | __u16 adv_data_len; |
171 | __u8 adv_data[HCI_MAX_AD_LENGTH]; | |
172 | __u16 scan_rsp_len; | |
173 | __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; | |
174 | }; | |
175 | ||
db25be66 | 176 | #define HCI_MAX_ADV_INSTANCES 5 |
d2609b34 FG |
177 | #define HCI_DEFAULT_ADV_DURATION 2 |
178 | ||
490c5bab JH |
179 | #define HCI_MAX_SHORT_NAME_LENGTH 10 |
180 | ||
fe510174 MH |
181 | /* Min encryption key size to match with SMP */ |
182 | #define HCI_MIN_ENC_KEY_SIZE 7 | |
183 | ||
d6bfd59c JH |
184 | /* Default LE RPA expiry time, 15 minutes */ |
185 | #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) | |
186 | ||
31ad1691 AK |
187 | /* Default min/max age of connection information (1s/3s) */ |
188 | #define DEFAULT_CONN_INFO_MIN_AGE 1000 | |
189 | #define DEFAULT_CONN_INFO_MAX_AGE 3000 | |
190 | ||
903e4541 AE |
191 | struct amp_assoc { |
192 | __u16 len; | |
193 | __u16 offset; | |
93c284ee AE |
194 | __u16 rem_len; |
195 | __u16 len_so_far; | |
903e4541 AE |
196 | __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; |
197 | }; | |
198 | ||
d2c5d77f | 199 | #define HCI_MAX_PAGES 3 |
cad718ed | 200 | |
1da177e4 LT |
201 | struct hci_dev { |
202 | struct list_head list; | |
09fd0de5 | 203 | struct mutex lock; |
1da177e4 LT |
204 | |
205 | char name[8]; | |
206 | unsigned long flags; | |
207 | __u16 id; | |
c13854ce | 208 | __u8 bus; |
943da25d | 209 | __u8 dev_type; |
1da177e4 | 210 | bdaddr_t bdaddr; |
e30d3f5f | 211 | bdaddr_t setup_addr; |
24c457e2 | 212 | bdaddr_t public_addr; |
7a4cd51d | 213 | bdaddr_t random_addr; |
d13eafce | 214 | bdaddr_t static_addr; |
56ed2cb8 | 215 | __u8 adv_addr_type; |
1f6c6378 | 216 | __u8 dev_name[HCI_MAX_NAME_LENGTH]; |
490c5bab | 217 | __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; |
80a1e1db | 218 | __u8 eir[HCI_MAX_EIR_LENGTH]; |
c4960ecf | 219 | __u16 appearance; |
a9de9248 | 220 | __u8 dev_class[3]; |
1aff6f09 JH |
221 | __u8 major_class; |
222 | __u8 minor_class; | |
d2c5d77f | 223 | __u8 max_page; |
cad718ed | 224 | __u8 features[HCI_MAX_PAGES][8]; |
60e77321 | 225 | __u8 le_features[8]; |
cf1d081f | 226 | __u8 le_white_list_size; |
9b008c04 | 227 | __u8 le_states[8]; |
a9de9248 | 228 | __u8 commands[64]; |
1143e5a6 MH |
229 | __u8 hci_ver; |
230 | __u16 hci_rev; | |
d5859e22 | 231 | __u8 lmp_ver; |
1143e5a6 | 232 | __u16 manufacturer; |
7d69230c | 233 | __u16 lmp_subver; |
1da177e4 | 234 | __u16 voice_setting; |
b4cb9fb2 | 235 | __u8 num_iac; |
c2f0f979 MH |
236 | __u8 stored_max_keys; |
237 | __u8 stored_num_keys; | |
17fa4b9d | 238 | __u8 io_capability; |
91c4e9b1 | 239 | __s8 inq_tx_power; |
f332ec66 JH |
240 | __u16 page_scan_interval; |
241 | __u16 page_scan_window; | |
242 | __u8 page_scan_type; | |
3f959d46 | 243 | __u8 le_adv_channel_map; |
628531c9 GL |
244 | __u16 le_adv_min_interval; |
245 | __u16 le_adv_max_interval; | |
533553f8 | 246 | __u8 le_scan_type; |
bef64738 MH |
247 | __u16 le_scan_interval; |
248 | __u16 le_scan_window; | |
4e70c7e7 MH |
249 | __u16 le_conn_min_interval; |
250 | __u16 le_conn_max_interval; | |
04fb7d90 MH |
251 | __u16 le_conn_latency; |
252 | __u16 le_supv_timeout; | |
a8e1bfaa MH |
253 | __u16 le_def_tx_len; |
254 | __u16 le_def_tx_time; | |
255 | __u16 le_max_tx_len; | |
256 | __u16 le_max_tx_time; | |
257 | __u16 le_max_rx_len; | |
258 | __u16 le_max_rx_time; | |
84ebc60a MK |
259 | __u8 le_max_key_size; |
260 | __u8 le_min_key_size; | |
b9a7a61e | 261 | __u16 discov_interleaved_timeout; |
31ad1691 AK |
262 | __u16 conn_info_min_age; |
263 | __u16 conn_info_max_age; | |
06f5b778 | 264 | __u8 ssp_debug_mode; |
c7741d16 | 265 | __u8 hw_error_code; |
33f35721 | 266 | __u32 clock; |
f332ec66 | 267 | |
2b9be137 MH |
268 | __u16 devid_source; |
269 | __u16 devid_vendor; | |
270 | __u16 devid_product; | |
271 | __u16 devid_version; | |
1da177e4 LT |
272 | |
273 | __u16 pkt_type; | |
5b7f9909 | 274 | __u16 esco_type; |
1da177e4 LT |
275 | __u16 link_policy; |
276 | __u16 link_mode; | |
277 | ||
04837f64 MH |
278 | __u32 idle_timeout; |
279 | __u16 sniff_min_interval; | |
280 | __u16 sniff_max_interval; | |
281 | ||
928abaa7 AE |
282 | __u8 amp_status; |
283 | __u32 amp_total_bw; | |
284 | __u32 amp_max_bw; | |
285 | __u32 amp_min_latency; | |
286 | __u32 amp_max_pdu; | |
287 | __u8 amp_type; | |
288 | __u16 amp_pal_cap; | |
289 | __u16 amp_assoc_size; | |
290 | __u32 amp_max_flush_to; | |
291 | __u32 amp_be_flush_to; | |
292 | ||
903e4541 AE |
293 | struct amp_assoc loc_assoc; |
294 | ||
1e89cffb AE |
295 | __u8 flow_ctl_mode; |
296 | ||
9f61656a JH |
297 | unsigned int auto_accept_delay; |
298 | ||
1da177e4 LT |
299 | unsigned long quirks; |
300 | ||
301 | atomic_t cmd_cnt; | |
302 | unsigned int acl_cnt; | |
303 | unsigned int sco_cnt; | |
6ed58ec5 | 304 | unsigned int le_cnt; |
1da177e4 LT |
305 | |
306 | unsigned int acl_mtu; | |
307 | unsigned int sco_mtu; | |
6ed58ec5 | 308 | unsigned int le_mtu; |
1da177e4 LT |
309 | unsigned int acl_pkts; |
310 | unsigned int sco_pkts; | |
6ed58ec5 | 311 | unsigned int le_pkts; |
1da177e4 | 312 | |
350ee4cf AE |
313 | __u16 block_len; |
314 | __u16 block_mtu; | |
315 | __u16 num_blocks; | |
316 | __u16 block_cnt; | |
317 | ||
1da177e4 LT |
318 | unsigned long acl_last_tx; |
319 | unsigned long sco_last_tx; | |
6ed58ec5 | 320 | unsigned long le_last_tx; |
1da177e4 | 321 | |
f48fd9c8 | 322 | struct workqueue_struct *workqueue; |
6ead1bbc | 323 | struct workqueue_struct *req_workqueue; |
f48fd9c8 | 324 | |
ab81cbf9 | 325 | struct work_struct power_on; |
3243553f | 326 | struct delayed_work power_off; |
c7741d16 | 327 | struct work_struct error_reset; |
ab81cbf9 | 328 | |
16ab91ab JH |
329 | __u16 discov_timeout; |
330 | struct delayed_work discov_off; | |
331 | ||
7d78525d JH |
332 | struct delayed_work service_cache; |
333 | ||
65cc2b49 | 334 | struct delayed_work cmd_timer; |
b78752cc MH |
335 | |
336 | struct work_struct rx_work; | |
c347b765 | 337 | struct work_struct cmd_work; |
3eff45ea | 338 | struct work_struct tx_work; |
1da177e4 | 339 | |
e68f072b | 340 | struct work_struct discov_update; |
2e93e53b | 341 | struct work_struct bg_scan_update; |
01b1cb87 | 342 | struct work_struct scan_update; |
53c0ba74 | 343 | struct work_struct connectable_update; |
aed1a885 | 344 | struct work_struct discoverable_update; |
7c1fbed2 JH |
345 | struct delayed_work le_scan_disable; |
346 | struct delayed_work le_scan_restart; | |
2e93e53b | 347 | |
1da177e4 LT |
348 | struct sk_buff_head rx_q; |
349 | struct sk_buff_head raw_q; | |
350 | struct sk_buff_head cmd_q; | |
351 | ||
352 | struct sk_buff *sent_cmd; | |
353 | ||
a6a67efd | 354 | struct mutex req_lock; |
1da177e4 LT |
355 | wait_queue_head_t req_wait_q; |
356 | __u32 req_status; | |
357 | __u32 req_result; | |
f60cb305 | 358 | struct sk_buff *req_skb; |
a5040efa | 359 | |
70db83c4 | 360 | void *smp_data; |
ef8efe4b | 361 | void *smp_bredr_data; |
2e58ef3e | 362 | |
30883512 | 363 | struct discovery_state discovery; |
1da177e4 LT |
364 | struct hci_conn_hash conn_hash; |
365 | ||
5c136e90 AG |
366 | struct list_head mgmt_pending; |
367 | struct list_head blacklist; | |
6659358e | 368 | struct list_head whitelist; |
2aeb9a1a | 369 | struct list_head uuids; |
55ed8ca1 | 370 | struct list_head link_keys; |
b899efaf | 371 | struct list_head long_term_keys; |
970c4e46 | 372 | struct list_head identity_resolving_keys; |
2763eda6 | 373 | struct list_head remote_oob_data; |
d2ab0ac1 | 374 | struct list_head le_white_list; |
15819a70 | 375 | struct list_head le_conn_params; |
77a77a30 | 376 | struct list_head pend_le_conns; |
66f8455a | 377 | struct list_head pend_le_reports; |
2763eda6 | 378 | |
1da177e4 LT |
379 | struct hci_dev_stats stat; |
380 | ||
70f23020 | 381 | atomic_t promisc; |
1da177e4 | 382 | |
5177a838 MH |
383 | const char *hw_info; |
384 | const char *fw_info; | |
ca325f69 MH |
385 | struct dentry *debugfs; |
386 | ||
a91f2e39 | 387 | struct device dev; |
1da177e4 | 388 | |
611b30f7 MH |
389 | struct rfkill *rfkill; |
390 | ||
eacb44df | 391 | DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); |
d23264a8 | 392 | |
8fa19098 | 393 | __s8 adv_tx_power; |
3f0f524b JH |
394 | __u8 adv_data[HCI_MAX_AD_LENGTH]; |
395 | __u8 adv_data_len; | |
f8e808bd MH |
396 | __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; |
397 | __u8 scan_rsp_data_len; | |
8fa19098 | 398 | |
d2609b34 FG |
399 | struct list_head adv_instances; |
400 | unsigned int adv_instance_cnt; | |
401 | __u8 cur_adv_instance; | |
5d900e46 FG |
402 | __u16 adv_instance_timeout; |
403 | struct delayed_work adv_instance_expire; | |
203fea01 | 404 | |
863efaf2 | 405 | __u8 irk[16]; |
d6bfd59c JH |
406 | __u32 rpa_timeout; |
407 | struct delayed_work rpa_expired; | |
2b5224dc | 408 | bdaddr_t rpa; |
863efaf2 | 409 | |
53f863a6 | 410 | #if IS_ENABLED(CONFIG_BT_LEDS) |
6d5d2ee6 | 411 | struct led_trigger *power_led; |
53f863a6 | 412 | #endif |
6d5d2ee6 | 413 | |
1da177e4 LT |
414 | int (*open)(struct hci_dev *hdev); |
415 | int (*close)(struct hci_dev *hdev); | |
416 | int (*flush)(struct hci_dev *hdev); | |
f41c70c4 | 417 | int (*setup)(struct hci_dev *hdev); |
a44fecbd | 418 | int (*shutdown)(struct hci_dev *hdev); |
7bd8f09f | 419 | int (*send)(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 420 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
c7741d16 | 421 | void (*hw_error)(struct hci_dev *hdev, u8 code); |
98a63aaf | 422 | int (*post_init)(struct hci_dev *hdev); |
4b4113d6 | 423 | int (*set_diag)(struct hci_dev *hdev, bool enable); |
24c457e2 | 424 | int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); |
1da177e4 LT |
425 | }; |
426 | ||
53502d69 AE |
427 | #define HCI_PHY_HANDLE(handle) (handle & 0xff) |
428 | ||
1da177e4 LT |
429 | struct hci_conn { |
430 | struct list_head list; | |
431 | ||
adc4266d | 432 | atomic_t refcnt; |
adc4266d SJ |
433 | |
434 | bdaddr_t dst; | |
5a9d0a3f | 435 | __u8 dst_type; |
662e8820 | 436 | bdaddr_t src; |
e7c4096e | 437 | __u8 src_type; |
cb1d68f7 JH |
438 | bdaddr_t init_addr; |
439 | __u8 init_addr_type; | |
440 | bdaddr_t resp_addr; | |
441 | __u8 resp_addr_type; | |
adc4266d SJ |
442 | __u16 handle; |
443 | __u16 state; | |
444 | __u8 mode; | |
445 | __u8 type; | |
40bef302 | 446 | __u8 role; |
a0c808b3 | 447 | bool out; |
adc4266d SJ |
448 | __u8 attempt; |
449 | __u8 dev_class[3]; | |
cad718ed | 450 | __u8 features[HCI_MAX_PAGES][8]; |
adc4266d SJ |
451 | __u16 pkt_type; |
452 | __u16 link_policy; | |
13d39315 | 453 | __u8 key_type; |
adc4266d SJ |
454 | __u8 auth_type; |
455 | __u8 sec_level; | |
456 | __u8 pending_sec_level; | |
457 | __u8 pin_length; | |
726b4ffc | 458 | __u8 enc_key_size; |
adc4266d | 459 | __u8 io_capability; |
92a25256 JH |
460 | __u32 passkey_notify; |
461 | __u8 passkey_entered; | |
adc4266d | 462 | __u16 disc_timeout; |
09ae260b | 463 | __u16 conn_timeout; |
10c62ddc | 464 | __u16 setting; |
1e406eef AG |
465 | __u16 le_conn_min_interval; |
466 | __u16 le_conn_max_interval; | |
e04fde60 MH |
467 | __u16 le_conn_interval; |
468 | __u16 le_conn_latency; | |
469 | __u16 le_supv_timeout; | |
fd45ada9 AA |
470 | __u8 le_adv_data[HCI_MAX_AD_LENGTH]; |
471 | __u8 le_adv_data_len; | |
5ae76a94 | 472 | __s8 rssi; |
5a134fae | 473 | __s8 tx_power; |
d0455ed9 | 474 | __s8 max_tx_power; |
51a8efd7 | 475 | unsigned long flags; |
04837f64 | 476 | |
33f35721 JH |
477 | __u32 clock; |
478 | __u16 clock_accuracy; | |
479 | ||
dd983808 AK |
480 | unsigned long conn_info_timestamp; |
481 | ||
03b555e1 | 482 | __u8 remote_cap; |
03b555e1 | 483 | __u8 remote_auth; |
3161ae1c | 484 | __u8 remote_id; |
03b555e1 | 485 | |
adc4266d | 486 | unsigned int sent; |
04837f64 | 487 | |
1da177e4 | 488 | struct sk_buff_head data_q; |
2c33c06a | 489 | struct list_head chan_list; |
1da177e4 | 490 | |
19c40e3b | 491 | struct delayed_work disc_work; |
7bc18d9d | 492 | struct delayed_work auto_accept_work; |
a74a84f6 | 493 | struct delayed_work idle_work; |
9489eca4 | 494 | struct delayed_work le_conn_timeout; |
8ce783dc | 495 | struct work_struct le_scan_cleanup; |
04837f64 | 496 | |
b219e3ac | 497 | struct device dev; |
23b9ceb7 | 498 | struct dentry *debugfs; |
b219e3ac | 499 | |
1da177e4 LT |
500 | struct hci_dev *hdev; |
501 | void *l2cap_data; | |
502 | void *sco_data; | |
9740e49d | 503 | struct amp_mgr *amp_mgr; |
1da177e4 LT |
504 | |
505 | struct hci_conn *link; | |
e9a416b5 JH |
506 | |
507 | void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); | |
508 | void (*security_cfm_cb) (struct hci_conn *conn, u8 status); | |
509 | void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); | |
1da177e4 LT |
510 | }; |
511 | ||
73d80deb LAD |
512 | struct hci_chan { |
513 | struct list_head list; | |
42c4e53e | 514 | __u16 handle; |
73d80deb LAD |
515 | struct hci_conn *conn; |
516 | struct sk_buff_head data_q; | |
517 | unsigned int sent; | |
168df8e5 | 518 | __u8 state; |
73d80deb LAD |
519 | }; |
520 | ||
15819a70 AG |
521 | struct hci_conn_params { |
522 | struct list_head list; | |
93450c75 | 523 | struct list_head action; |
15819a70 AG |
524 | |
525 | bdaddr_t addr; | |
526 | u8 addr_type; | |
527 | ||
528 | u16 conn_min_interval; | |
529 | u16 conn_max_interval; | |
f044eb05 MH |
530 | u16 conn_latency; |
531 | u16 supervision_timeout; | |
9fcb18ef AG |
532 | |
533 | enum { | |
534 | HCI_AUTO_CONN_DISABLED, | |
a3451d27 | 535 | HCI_AUTO_CONN_REPORT, |
4b9e7e75 | 536 | HCI_AUTO_CONN_DIRECT, |
9fcb18ef AG |
537 | HCI_AUTO_CONN_ALWAYS, |
538 | HCI_AUTO_CONN_LINK_LOSS, | |
158e9218 | 539 | HCI_AUTO_CONN_EXPLICIT, |
9fcb18ef | 540 | } auto_connect; |
f161dd41 JH |
541 | |
542 | struct hci_conn *conn; | |
158e9218 | 543 | bool explicit_connect; |
15819a70 AG |
544 | }; |
545 | ||
1da177e4 LT |
546 | extern struct list_head hci_dev_list; |
547 | extern struct list_head hci_cb_list; | |
548 | extern rwlock_t hci_dev_list_lock; | |
fba7ecf0 | 549 | extern struct mutex hci_cb_list_lock; |
1da177e4 | 550 | |
eacb44df MH |
551 | #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) |
552 | #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) | |
553 | #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) | |
554 | #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) | |
555 | #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) | |
556 | #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) | |
557 | #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) | |
558 | ||
559 | #define hci_dev_clear_volatile_flags(hdev) \ | |
560 | do { \ | |
561 | hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ | |
562 | hci_dev_clear_flag(hdev, HCI_LE_ADV); \ | |
563 | hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ | |
564 | } while (0) | |
516018a9 | 565 | |
686ebf28 | 566 | /* ----- HCI interface to upper protocols ----- */ |
e74e58f8 | 567 | int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); |
e74e58f8 | 568 | int l2cap_disconn_ind(struct hci_conn *hcon); |
9b4c3336 | 569 | void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); |
e74e58f8 | 570 | |
ff50e8af | 571 | #if IS_ENABLED(CONFIG_BT_BREDR) |
e74e58f8 | 572 | int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); |
9b4c3336 | 573 | void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); |
ff50e8af AW |
574 | #else |
575 | static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
576 | __u8 *flags) | |
577 | { | |
578 | return 0; | |
579 | } | |
580 | ||
581 | static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) | |
582 | { | |
583 | } | |
584 | #endif | |
686ebf28 | 585 | |
1da177e4 | 586 | /* ----- Inquiry cache ----- */ |
70f23020 AE |
587 | #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ |
588 | #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ | |
1da177e4 | 589 | |
30883512 | 590 | static inline void discovery_init(struct hci_dev *hdev) |
1da177e4 | 591 | { |
ff9ef578 | 592 | hdev->discovery.state = DISCOVERY_STOPPED; |
30883512 JH |
593 | INIT_LIST_HEAD(&hdev->discovery.all); |
594 | INIT_LIST_HEAD(&hdev->discovery.unknown); | |
595 | INIT_LIST_HEAD(&hdev->discovery.resolve); | |
da25cf6a | 596 | hdev->discovery.report_invalid_rssi = true; |
37eab042 | 597 | hdev->discovery.rssi = HCI_RSSI_INVALID; |
1da177e4 LT |
598 | } |
599 | ||
0256325e MH |
600 | static inline void hci_discovery_filter_clear(struct hci_dev *hdev) |
601 | { | |
82f8b651 | 602 | hdev->discovery.result_filtering = false; |
da25cf6a | 603 | hdev->discovery.report_invalid_rssi = true; |
0256325e MH |
604 | hdev->discovery.rssi = HCI_RSSI_INVALID; |
605 | hdev->discovery.uuid_count = 0; | |
606 | kfree(hdev->discovery.uuids); | |
607 | hdev->discovery.uuids = NULL; | |
2d28cfe7 JP |
608 | hdev->discovery.scan_start = 0; |
609 | hdev->discovery.scan_duration = 0; | |
0256325e MH |
610 | } |
611 | ||
30dc78e1 JH |
612 | bool hci_discovery_active(struct hci_dev *hdev); |
613 | ||
ff9ef578 JH |
614 | void hci_discovery_set_state(struct hci_dev *hdev, int state); |
615 | ||
1da177e4 LT |
616 | static inline int inquiry_cache_empty(struct hci_dev *hdev) |
617 | { | |
30883512 | 618 | return list_empty(&hdev->discovery.all); |
1da177e4 LT |
619 | } |
620 | ||
621 | static inline long inquiry_cache_age(struct hci_dev *hdev) | |
622 | { | |
30883512 | 623 | struct discovery_state *c = &hdev->discovery; |
1da177e4 LT |
624 | return jiffies - c->timestamp; |
625 | } | |
626 | ||
627 | static inline long inquiry_entry_age(struct inquiry_entry *e) | |
628 | { | |
629 | return jiffies - e->timestamp; | |
630 | } | |
631 | ||
5a9d0a3f | 632 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
04124681 | 633 | bdaddr_t *bdaddr); |
561aafbc | 634 | struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
04124681 | 635 | bdaddr_t *bdaddr); |
30dc78e1 | 636 | struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
04124681 GP |
637 | bdaddr_t *bdaddr, |
638 | int state); | |
a3d4e20a | 639 | void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
04124681 | 640 | struct inquiry_entry *ie); |
af58925c MH |
641 | u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
642 | bool name_known); | |
1f9b9a5d | 643 | void hci_inquiry_cache_flush(struct hci_dev *hdev); |
1da177e4 LT |
644 | |
645 | /* ----- HCI Connections ----- */ | |
646 | enum { | |
647 | HCI_CONN_AUTH_PEND, | |
19f8def0 | 648 | HCI_CONN_REAUTH_PEND, |
1da177e4 | 649 | HCI_CONN_ENCRYPT_PEND, |
04837f64 MH |
650 | HCI_CONN_RSWITCH_PEND, |
651 | HCI_CONN_MODE_CHANGE_PEND, | |
e73439d8 | 652 | HCI_CONN_SCO_SETUP_PEND, |
b644ba33 | 653 | HCI_CONN_MGMT_CONNECTED, |
58a681ef | 654 | HCI_CONN_SSP_ENABLED, |
eb9a8f3f | 655 | HCI_CONN_SC_ENABLED, |
abf76bad | 656 | HCI_CONN_AES_CCM, |
58a681ef | 657 | HCI_CONN_POWER_SAVE, |
af6a9c32 | 658 | HCI_CONN_FLUSH_KEY, |
4dae2798 JH |
659 | HCI_CONN_ENCRYPT, |
660 | HCI_CONN_AUTH, | |
661 | HCI_CONN_SECURE, | |
662 | HCI_CONN_FIPS, | |
fe59a05f | 663 | HCI_CONN_STK_ENCRYPT, |
977f8fce | 664 | HCI_CONN_AUTH_INITIATOR, |
f94b665d | 665 | HCI_CONN_DROP, |
89cbb063 | 666 | HCI_CONN_PARAM_REMOVAL_PEND, |
fe8bc5ac | 667 | HCI_CONN_NEW_LINK_KEY, |
158e9218 | 668 | HCI_CONN_SCANNING, |
160b9251 | 669 | HCI_CONN_AUTH_FAILURE, |
1da177e4 LT |
670 | }; |
671 | ||
aa64a8b5 JH |
672 | static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
673 | { | |
674 | struct hci_dev *hdev = conn->hdev; | |
d7a5a11d | 675 | return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && |
c3c7ea65 | 676 | test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); |
aa64a8b5 JH |
677 | } |
678 | ||
eb9a8f3f MH |
679 | static inline bool hci_conn_sc_enabled(struct hci_conn *conn) |
680 | { | |
681 | struct hci_dev *hdev = conn->hdev; | |
d7a5a11d | 682 | return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && |
eb9a8f3f MH |
683 | test_bit(HCI_CONN_SC_ENABLED, &conn->flags); |
684 | } | |
685 | ||
1da177e4 LT |
686 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
687 | { | |
688 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 | 689 | list_add_rcu(&c->list, &h->list); |
fcd89c09 VT |
690 | switch (c->type) { |
691 | case ACL_LINK: | |
1da177e4 | 692 | h->acl_num++; |
fcd89c09 | 693 | break; |
bd1eb66b AE |
694 | case AMP_LINK: |
695 | h->amp_num++; | |
696 | break; | |
fcd89c09 VT |
697 | case LE_LINK: |
698 | h->le_num++; | |
f8218dc6 JH |
699 | if (c->role == HCI_ROLE_SLAVE) |
700 | h->le_num_slave++; | |
fcd89c09 VT |
701 | break; |
702 | case SCO_LINK: | |
703 | case ESCO_LINK: | |
1da177e4 | 704 | h->sco_num++; |
fcd89c09 VT |
705 | break; |
706 | } | |
1da177e4 LT |
707 | } |
708 | ||
709 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) | |
710 | { | |
711 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 GP |
712 | |
713 | list_del_rcu(&c->list); | |
714 | synchronize_rcu(); | |
715 | ||
fcd89c09 VT |
716 | switch (c->type) { |
717 | case ACL_LINK: | |
1da177e4 | 718 | h->acl_num--; |
fcd89c09 | 719 | break; |
bd1eb66b AE |
720 | case AMP_LINK: |
721 | h->amp_num--; | |
722 | break; | |
fcd89c09 VT |
723 | case LE_LINK: |
724 | h->le_num--; | |
f8218dc6 JH |
725 | if (c->role == HCI_ROLE_SLAVE) |
726 | h->le_num_slave--; | |
fcd89c09 VT |
727 | break; |
728 | case SCO_LINK: | |
729 | case ESCO_LINK: | |
1da177e4 | 730 | h->sco_num--; |
fcd89c09 VT |
731 | break; |
732 | } | |
1da177e4 LT |
733 | } |
734 | ||
52087a79 LAD |
735 | static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
736 | { | |
737 | struct hci_conn_hash *h = &hdev->conn_hash; | |
738 | switch (type) { | |
739 | case ACL_LINK: | |
740 | return h->acl_num; | |
bd1eb66b AE |
741 | case AMP_LINK: |
742 | return h->amp_num; | |
52087a79 LAD |
743 | case LE_LINK: |
744 | return h->le_num; | |
745 | case SCO_LINK: | |
746 | case ESCO_LINK: | |
747 | return h->sco_num; | |
748 | default: | |
749 | return 0; | |
750 | } | |
751 | } | |
752 | ||
f4f07505 JH |
753 | static inline unsigned int hci_conn_count(struct hci_dev *hdev) |
754 | { | |
755 | struct hci_conn_hash *c = &hdev->conn_hash; | |
756 | ||
757 | return c->acl_num + c->amp_num + c->sco_num + c->le_num; | |
758 | } | |
759 | ||
845472e8 MH |
760 | static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) |
761 | { | |
762 | struct hci_conn_hash *h = &hdev->conn_hash; | |
763 | struct hci_conn *c; | |
764 | __u8 type = INVALID_LINK; | |
765 | ||
766 | rcu_read_lock(); | |
767 | ||
768 | list_for_each_entry_rcu(c, &h->list, list) { | |
769 | if (c->handle == handle) { | |
770 | type = c->type; | |
771 | break; | |
772 | } | |
773 | } | |
774 | ||
775 | rcu_read_unlock(); | |
776 | ||
777 | return type; | |
778 | } | |
779 | ||
1da177e4 | 780 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
adc4266d | 781 | __u16 handle) |
1da177e4 LT |
782 | { |
783 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
784 | struct hci_conn *c; |
785 | ||
bf4c6325 GP |
786 | rcu_read_lock(); |
787 | ||
788 | list_for_each_entry_rcu(c, &h->list, list) { | |
789 | if (c->handle == handle) { | |
790 | rcu_read_unlock(); | |
1da177e4 | 791 | return c; |
bf4c6325 | 792 | } |
1da177e4 | 793 | } |
bf4c6325 GP |
794 | rcu_read_unlock(); |
795 | ||
1da177e4 LT |
796 | return NULL; |
797 | } | |
798 | ||
799 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, | |
adc4266d | 800 | __u8 type, bdaddr_t *ba) |
1da177e4 LT |
801 | { |
802 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
803 | struct hci_conn *c; |
804 | ||
bf4c6325 GP |
805 | rcu_read_lock(); |
806 | ||
807 | list_for_each_entry_rcu(c, &h->list, list) { | |
808 | if (c->type == type && !bacmp(&c->dst, ba)) { | |
809 | rcu_read_unlock(); | |
1da177e4 | 810 | return c; |
bf4c6325 | 811 | } |
1da177e4 | 812 | } |
bf4c6325 GP |
813 | |
814 | rcu_read_unlock(); | |
815 | ||
1da177e4 LT |
816 | return NULL; |
817 | } | |
818 | ||
1b51c7b6 JH |
819 | static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, |
820 | bdaddr_t *ba, | |
821 | __u8 ba_type) | |
822 | { | |
823 | struct hci_conn_hash *h = &hdev->conn_hash; | |
824 | struct hci_conn *c; | |
825 | ||
826 | rcu_read_lock(); | |
827 | ||
828 | list_for_each_entry_rcu(c, &h->list, list) { | |
829 | if (c->type != LE_LINK) | |
830 | continue; | |
831 | ||
832 | if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { | |
833 | rcu_read_unlock(); | |
834 | return c; | |
835 | } | |
836 | } | |
837 | ||
838 | rcu_read_unlock(); | |
839 | ||
840 | return NULL; | |
841 | } | |
842 | ||
4c67bc74 | 843 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
adc4266d | 844 | __u8 type, __u16 state) |
4c67bc74 MH |
845 | { |
846 | struct hci_conn_hash *h = &hdev->conn_hash; | |
4c67bc74 MH |
847 | struct hci_conn *c; |
848 | ||
bf4c6325 GP |
849 | rcu_read_lock(); |
850 | ||
851 | list_for_each_entry_rcu(c, &h->list, list) { | |
852 | if (c->type == type && c->state == state) { | |
853 | rcu_read_unlock(); | |
4c67bc74 | 854 | return c; |
bf4c6325 | 855 | } |
4c67bc74 | 856 | } |
73d80deb | 857 | |
bf4c6325 | 858 | rcu_read_unlock(); |
73d80deb | 859 | |
4c67bc74 | 860 | return NULL; |
73d80deb LAD |
861 | } |
862 | ||
e7d9ab73 JP |
863 | static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) |
864 | { | |
865 | struct hci_conn_hash *h = &hdev->conn_hash; | |
866 | struct hci_conn *c; | |
867 | ||
868 | rcu_read_lock(); | |
869 | ||
870 | list_for_each_entry_rcu(c, &h->list, list) { | |
871 | if (c->type == LE_LINK && c->state == BT_CONNECT && | |
872 | !test_bit(HCI_CONN_SCANNING, &c->flags)) { | |
873 | rcu_read_unlock(); | |
874 | return c; | |
875 | } | |
876 | } | |
877 | ||
878 | rcu_read_unlock(); | |
879 | ||
880 | return NULL; | |
881 | } | |
882 | ||
e3b679d5 | 883 | int hci_disconnect(struct hci_conn *conn, __u8 reason); |
2dea632f | 884 | bool hci_setup_sync(struct hci_conn *conn, __u16 handle); |
e73439d8 | 885 | void hci_sco_setup(struct hci_conn *conn, __u8 status); |
1da177e4 | 886 | |
a5c4e309 JH |
887 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, |
888 | u8 role); | |
a9de9248 MH |
889 | int hci_conn_del(struct hci_conn *conn); |
890 | void hci_conn_hash_flush(struct hci_dev *hdev); | |
891 | void hci_conn_check_pending(struct hci_dev *hdev); | |
1da177e4 | 892 | |
73d80deb | 893 | struct hci_chan *hci_chan_create(struct hci_conn *conn); |
9472007c | 894 | void hci_chan_del(struct hci_chan *chan); |
2c33c06a | 895 | void hci_chan_list_flush(struct hci_conn *conn); |
42c4e53e | 896 | struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); |
73d80deb | 897 | |
f75113a2 JP |
898 | struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, |
899 | u8 dst_type, u8 sec_level, | |
0ad06aa6 | 900 | u16 conn_timeout); |
04a6c589 | 901 | struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, |
cdd6275e | 902 | u8 dst_type, u8 sec_level, u16 conn_timeout, |
eb7e6434 | 903 | u8 role, bdaddr_t *direct_rpa); |
04a6c589 AG |
904 | struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, |
905 | u8 sec_level, u8 auth_type); | |
10c62ddc FD |
906 | struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, |
907 | __u16 setting); | |
e7c29cb1 | 908 | int hci_conn_check_link_mode(struct hci_conn *conn); |
b3b1b061 | 909 | int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); |
e7cafc45 JH |
910 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, |
911 | bool initiator); | |
8c1b2355 | 912 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
1da177e4 | 913 | |
14b12d0b | 914 | void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); |
1da177e4 | 915 | |
06c053fb AG |
916 | void hci_le_conn_failed(struct hci_conn *conn, u8 status); |
917 | ||
8d12356f DH |
918 | /* |
919 | * hci_conn_get() and hci_conn_put() are used to control the life-time of an | |
920 | * "hci_conn" object. They do not guarantee that the hci_conn object is running, | |
921 | * working or anything else. They just guarantee that the object is available | |
922 | * and can be dereferenced. So you can use its locks, local variables and any | |
923 | * other constant data. | |
924 | * Before accessing runtime data, you _must_ lock the object and then check that | |
925 | * it is still running. As soon as you release the locks, the connection might | |
926 | * get dropped, though. | |
927 | * | |
928 | * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control | |
929 | * how long the underlying connection is held. So every channel that runs on the | |
930 | * hci_conn object calls this to prevent the connection from disappearing. As | |
931 | * long as you hold a device, you must also guarantee that you have a valid | |
932 | * reference to the device via hci_conn_get() (or the initial reference from | |
933 | * hci_conn_add()). | |
934 | * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't | |
935 | * break because nobody cares for that. But this means, we cannot use | |
936 | * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). | |
937 | */ | |
938 | ||
51bb8457 | 939 | static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) |
8d12356f DH |
940 | { |
941 | get_device(&conn->dev); | |
51bb8457 | 942 | return conn; |
8d12356f DH |
943 | } |
944 | ||
945 | static inline void hci_conn_put(struct hci_conn *conn) | |
946 | { | |
947 | put_device(&conn->dev); | |
948 | } | |
949 | ||
1da177e4 LT |
950 | static inline void hci_conn_hold(struct hci_conn *conn) |
951 | { | |
71becf0c | 952 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 953 | |
1da177e4 | 954 | atomic_inc(&conn->refcnt); |
2f304d1e | 955 | cancel_delayed_work(&conn->disc_work); |
1da177e4 LT |
956 | } |
957 | ||
76a68ba0 | 958 | static inline void hci_conn_drop(struct hci_conn *conn) |
1da177e4 | 959 | { |
71becf0c | 960 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 961 | |
1da177e4 | 962 | if (atomic_dec_and_test(&conn->refcnt)) { |
04837f64 | 963 | unsigned long timeo; |
716e4ab5 AE |
964 | |
965 | switch (conn->type) { | |
966 | case ACL_LINK: | |
967 | case LE_LINK: | |
a74a84f6 | 968 | cancel_delayed_work(&conn->idle_work); |
6ac59344 | 969 | if (conn->state == BT_CONNECTED) { |
5f246e89 | 970 | timeo = conn->disc_timeout; |
6ac59344 | 971 | if (!conn->out) |
052b30b0 | 972 | timeo *= 2; |
5a9d0a3f | 973 | } else { |
eb78d7e5 | 974 | timeo = 0; |
5a9d0a3f | 975 | } |
716e4ab5 AE |
976 | break; |
977 | ||
978 | case AMP_LINK: | |
979 | timeo = conn->disc_timeout; | |
980 | break; | |
981 | ||
982 | default: | |
eb78d7e5 | 983 | timeo = 0; |
716e4ab5 | 984 | break; |
5a9d0a3f | 985 | } |
716e4ab5 | 986 | |
2f304d1e | 987 | cancel_delayed_work(&conn->disc_work); |
19c40e3b | 988 | queue_delayed_work(conn->hdev->workqueue, |
716e4ab5 | 989 | &conn->disc_work, timeo); |
1da177e4 LT |
990 | } |
991 | } | |
992 | ||
1da177e4 | 993 | /* ----- HCI Devices ----- */ |
dc946bd8 | 994 | static inline void hci_dev_put(struct hci_dev *d) |
1da177e4 | 995 | { |
376261ae | 996 | BT_DBG("%s orig refcnt %d", d->name, |
2c935bc5 | 997 | kref_read(&d->dev.kobj.kref)); |
376261ae | 998 | |
4c724c71 | 999 | put_device(&d->dev); |
1da177e4 LT |
1000 | } |
1001 | ||
dc946bd8 | 1002 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
1da177e4 | 1003 | { |
376261ae | 1004 | BT_DBG("%s orig refcnt %d", d->name, |
2c935bc5 | 1005 | kref_read(&d->dev.kobj.kref)); |
376261ae | 1006 | |
4c724c71 | 1007 | get_device(&d->dev); |
1da177e4 LT |
1008 | return d; |
1009 | } | |
1010 | ||
09fd0de5 GP |
1011 | #define hci_dev_lock(d) mutex_lock(&d->lock) |
1012 | #define hci_dev_unlock(d) mutex_unlock(&d->lock) | |
1da177e4 | 1013 | |
aa2b86d7 | 1014 | #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
3dc07322 | 1015 | #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
aa2b86d7 | 1016 | |
155961e8 DH |
1017 | static inline void *hci_get_drvdata(struct hci_dev *hdev) |
1018 | { | |
1019 | return dev_get_drvdata(&hdev->dev); | |
1020 | } | |
1021 | ||
1022 | static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) | |
1023 | { | |
1024 | dev_set_drvdata(&hdev->dev, data); | |
1025 | } | |
1026 | ||
1da177e4 | 1027 | struct hci_dev *hci_dev_get(int index); |
39385cb5 | 1028 | struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); |
1da177e4 LT |
1029 | |
1030 | struct hci_dev *hci_alloc_dev(void); | |
1031 | void hci_free_dev(struct hci_dev *hdev); | |
1032 | int hci_register_dev(struct hci_dev *hdev); | |
59735631 | 1033 | void hci_unregister_dev(struct hci_dev *hdev); |
1da177e4 LT |
1034 | int hci_suspend_dev(struct hci_dev *hdev); |
1035 | int hci_resume_dev(struct hci_dev *hdev); | |
75e0569f | 1036 | int hci_reset_dev(struct hci_dev *hdev); |
f962fe32 MH |
1037 | int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); |
1038 | int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); | |
1aabbbce NI |
1039 | __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); |
1040 | __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); | |
1da177e4 LT |
1041 | int hci_dev_open(__u16 dev); |
1042 | int hci_dev_close(__u16 dev); | |
6b3cc1db | 1043 | int hci_dev_do_close(struct hci_dev *hdev); |
1da177e4 LT |
1044 | int hci_dev_reset(__u16 dev); |
1045 | int hci_dev_reset_stat(__u16 dev); | |
1046 | int hci_dev_cmd(unsigned int cmd, void __user *arg); | |
1047 | int hci_get_dev_list(void __user *arg); | |
1048 | int hci_get_dev_info(void __user *arg); | |
1049 | int hci_get_conn_list(void __user *arg); | |
1050 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); | |
40be492f | 1051 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
1da177e4 LT |
1052 | int hci_inquiry(void __user *arg); |
1053 | ||
dcc36c16 JH |
1054 | struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, |
1055 | bdaddr_t *bdaddr, u8 type); | |
1056 | int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); | |
1057 | int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); | |
1058 | void hci_bdaddr_list_clear(struct list_head *list); | |
d2ab0ac1 | 1059 | |
15819a70 AG |
1060 | struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, |
1061 | bdaddr_t *addr, u8 addr_type); | |
51d167c0 MH |
1062 | struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, |
1063 | bdaddr_t *addr, u8 addr_type); | |
15819a70 | 1064 | void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); |
55af49a8 | 1065 | void hci_conn_params_clear_disabled(struct hci_dev *hdev); |
15819a70 | 1066 | |
501f8827 JH |
1067 | struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, |
1068 | bdaddr_t *addr, | |
1069 | u8 addr_type); | |
77a77a30 | 1070 | |
35f7498a | 1071 | void hci_uuids_clear(struct hci_dev *hdev); |
2aeb9a1a | 1072 | |
35f7498a | 1073 | void hci_link_keys_clear(struct hci_dev *hdev); |
55ed8ca1 | 1074 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
567fa2aa | 1075 | struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, |
7652ff6a JH |
1076 | bdaddr_t *bdaddr, u8 *val, u8 type, |
1077 | u8 pin_len, bool *persistent); | |
ca9142b8 | 1078 | struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
35d70271 | 1079 | u8 addr_type, u8 type, u8 authenticated, |
fe39c7b2 | 1080 | u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); |
f3a73d97 JH |
1081 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1082 | u8 addr_type, u8 role); | |
e0b2b27e | 1083 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); |
35f7498a | 1084 | void hci_smp_ltks_clear(struct hci_dev *hdev); |
55ed8ca1 JH |
1085 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
1086 | ||
970c4e46 JH |
1087 | struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); |
1088 | struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
1089 | u8 addr_type); | |
ca9142b8 JH |
1090 | struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1091 | u8 addr_type, u8 val[16], bdaddr_t *rpa); | |
a7ec7338 | 1092 | void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); |
970c4e46 JH |
1093 | void hci_smp_irks_clear(struct hci_dev *hdev); |
1094 | ||
55e76b38 JH |
1095 | bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
1096 | ||
35f7498a | 1097 | void hci_remote_oob_data_clear(struct hci_dev *hdev); |
2763eda6 | 1098 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, |
6928a924 | 1099 | bdaddr_t *bdaddr, u8 bdaddr_type); |
0798872e | 1100 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, |
6928a924 | 1101 | u8 bdaddr_type, u8 *hash192, u8 *rand192, |
81328d5c | 1102 | u8 *hash256, u8 *rand256); |
6928a924 JH |
1103 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1104 | u8 bdaddr_type); | |
2763eda6 | 1105 | |
d2609b34 FG |
1106 | void hci_adv_instances_clear(struct hci_dev *hdev); |
1107 | struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); | |
1108 | struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); | |
1109 | int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, | |
1110 | u16 adv_data_len, u8 *adv_data, | |
1111 | u16 scan_rsp_len, u8 *scan_rsp_data, | |
1112 | u16 timeout, u16 duration); | |
1113 | int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); | |
1114 | ||
1da177e4 LT |
1115 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
1116 | ||
0ac7e700 | 1117 | void hci_init_sysfs(struct hci_dev *hdev); |
a67e899c | 1118 | void hci_conn_init_sysfs(struct hci_conn *conn); |
b219e3ac MH |
1119 | void hci_conn_add_sysfs(struct hci_conn *conn); |
1120 | void hci_conn_del_sysfs(struct hci_conn *conn); | |
1da177e4 | 1121 | |
6935e0f5 | 1122 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
1da177e4 LT |
1123 | |
1124 | /* ----- LMP capabilities ----- */ | |
cad718ed JH |
1125 | #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) |
1126 | #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) | |
1127 | #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) | |
1128 | #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) | |
1129 | #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) | |
1130 | #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) | |
1131 | #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) | |
1132 | #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) | |
1133 | #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) | |
1134 | #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) | |
1135 | #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) | |
1136 | #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) | |
1137 | #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) | |
1138 | #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) | |
1139 | #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) | |
1140 | #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) | |
1141 | #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) | |
1142 | #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) | |
07a5c61e | 1143 | #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) |
1da177e4 | 1144 | |
eead27da | 1145 | /* ----- Extended LMP capabilities ----- */ |
53b834d2 MH |
1146 | #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) |
1147 | #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) | |
1148 | #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) | |
1149 | #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) | |
d5991585 MH |
1150 | #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) |
1151 | #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) | |
53b834d2 MH |
1152 | |
1153 | /* ----- Host capabilities ----- */ | |
cad718ed | 1154 | #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) |
d5991585 | 1155 | #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) |
cad718ed JH |
1156 | #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) |
1157 | #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) | |
eead27da | 1158 | |
d7a5a11d MH |
1159 | #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ |
1160 | !hci_dev_test_flag(dev, HCI_AUTO_OFF)) | |
1161 | #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ | |
1162 | hci_dev_test_flag(dev, HCI_SC_ENABLED)) | |
432df05e | 1163 | |
1da177e4 | 1164 | /* ----- HCI protocols ----- */ |
20714bfe FD |
1165 | #define HCI_PROTO_DEFER 0x01 |
1166 | ||
5a9d0a3f | 1167 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
20714bfe | 1168 | __u8 type, __u8 *flags) |
1da177e4 | 1169 | { |
686ebf28 UF |
1170 | switch (type) { |
1171 | case ACL_LINK: | |
1172 | return l2cap_connect_ind(hdev, bdaddr); | |
1da177e4 | 1173 | |
686ebf28 UF |
1174 | case SCO_LINK: |
1175 | case ESCO_LINK: | |
20714bfe | 1176 | return sco_connect_ind(hdev, bdaddr, flags); |
1da177e4 | 1177 | |
686ebf28 UF |
1178 | default: |
1179 | BT_ERR("unknown link type %d", type); | |
1180 | return -EINVAL; | |
1181 | } | |
1da177e4 LT |
1182 | } |
1183 | ||
2950f21a | 1184 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
1da177e4 | 1185 | { |
686ebf28 UF |
1186 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
1187 | return HCI_ERROR_REMOTE_USER_TERM; | |
1da177e4 | 1188 | |
686ebf28 | 1189 | return l2cap_disconn_ind(conn); |
2950f21a MH |
1190 | } |
1191 | ||
1da177e4 LT |
1192 | /* ----- HCI callbacks ----- */ |
1193 | struct hci_cb { | |
1194 | struct list_head list; | |
1195 | ||
1196 | char *name; | |
1197 | ||
539c496d | 1198 | void (*connect_cfm) (struct hci_conn *conn, __u8 status); |
3a6d576b | 1199 | void (*disconn_cfm) (struct hci_conn *conn, __u8 status); |
5a9d0a3f WR |
1200 | void (*security_cfm) (struct hci_conn *conn, __u8 status, |
1201 | __u8 encrypt); | |
1da177e4 LT |
1202 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
1203 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); | |
1204 | }; | |
1205 | ||
539c496d JH |
1206 | static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) |
1207 | { | |
1208 | struct hci_cb *cb; | |
1209 | ||
1210 | mutex_lock(&hci_cb_list_lock); | |
1211 | list_for_each_entry(cb, &hci_cb_list, list) { | |
1212 | if (cb->connect_cfm) | |
1213 | cb->connect_cfm(conn, status); | |
1214 | } | |
1215 | mutex_unlock(&hci_cb_list_lock); | |
1216 | ||
1217 | if (conn->connect_cfm_cb) | |
1218 | conn->connect_cfm_cb(conn, status); | |
1219 | } | |
1220 | ||
3a6d576b JH |
1221 | static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) |
1222 | { | |
1223 | struct hci_cb *cb; | |
1224 | ||
1225 | mutex_lock(&hci_cb_list_lock); | |
1226 | list_for_each_entry(cb, &hci_cb_list, list) { | |
1227 | if (cb->disconn_cfm) | |
1228 | cb->disconn_cfm(conn, reason); | |
1229 | } | |
1230 | mutex_unlock(&hci_cb_list_lock); | |
1231 | ||
1232 | if (conn->disconn_cfm_cb) | |
1233 | conn->disconn_cfm_cb(conn, reason); | |
1234 | } | |
1235 | ||
1da177e4 LT |
1236 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) |
1237 | { | |
711584ea | 1238 | struct hci_cb *cb; |
8c1b2355 | 1239 | __u8 encrypt; |
1da177e4 | 1240 | |
51a8efd7 | 1241 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
1242 | return; |
1243 | ||
4dae2798 | 1244 | encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; |
8c1b2355 | 1245 | |
fba7ecf0 | 1246 | mutex_lock(&hci_cb_list_lock); |
711584ea | 1247 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
1248 | if (cb->security_cfm) |
1249 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 1250 | } |
fba7ecf0 | 1251 | mutex_unlock(&hci_cb_list_lock); |
354fe804 JH |
1252 | |
1253 | if (conn->security_cfm_cb) | |
1254 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
1255 | } |
1256 | ||
5a9d0a3f WR |
1257 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, |
1258 | __u8 encrypt) | |
1da177e4 | 1259 | { |
711584ea | 1260 | struct hci_cb *cb; |
1da177e4 | 1261 | |
435fef20 MH |
1262 | if (conn->sec_level == BT_SECURITY_SDP) |
1263 | conn->sec_level = BT_SECURITY_LOW; | |
1264 | ||
88167aed VCG |
1265 | if (conn->pending_sec_level > conn->sec_level) |
1266 | conn->sec_level = conn->pending_sec_level; | |
1267 | ||
fba7ecf0 | 1268 | mutex_lock(&hci_cb_list_lock); |
711584ea | 1269 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
1270 | if (cb->security_cfm) |
1271 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 1272 | } |
fba7ecf0 | 1273 | mutex_unlock(&hci_cb_list_lock); |
354fe804 JH |
1274 | |
1275 | if (conn->security_cfm_cb) | |
1276 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
1277 | } |
1278 | ||
1279 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) | |
1280 | { | |
711584ea | 1281 | struct hci_cb *cb; |
1da177e4 | 1282 | |
fba7ecf0 | 1283 | mutex_lock(&hci_cb_list_lock); |
711584ea | 1284 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
1285 | if (cb->key_change_cfm) |
1286 | cb->key_change_cfm(conn, status); | |
1287 | } | |
fba7ecf0 | 1288 | mutex_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1289 | } |
1290 | ||
5a9d0a3f WR |
1291 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
1292 | __u8 role) | |
1da177e4 | 1293 | { |
711584ea | 1294 | struct hci_cb *cb; |
1da177e4 | 1295 | |
fba7ecf0 | 1296 | mutex_lock(&hci_cb_list_lock); |
711584ea | 1297 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
1298 | if (cb->role_switch_cfm) |
1299 | cb->role_switch_cfm(conn, status, role); | |
1300 | } | |
fba7ecf0 | 1301 | mutex_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1302 | } |
1303 | ||
0d3b7f64 JH |
1304 | static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type, |
1305 | size_t *data_len) | |
6759a675 | 1306 | { |
84d9d071 | 1307 | size_t parsed = 0; |
6759a675 | 1308 | |
0d3b7f64 JH |
1309 | if (eir_len < 2) |
1310 | return NULL; | |
6c0c331e | 1311 | |
0d3b7f64 JH |
1312 | while (parsed < eir_len - 1) { |
1313 | u8 field_len = eir[0]; | |
6759a675 JH |
1314 | |
1315 | if (field_len == 0) | |
1316 | break; | |
1317 | ||
1318 | parsed += field_len + 1; | |
1319 | ||
0d3b7f64 | 1320 | if (parsed > eir_len) |
6759a675 JH |
1321 | break; |
1322 | ||
0d3b7f64 JH |
1323 | if (eir[1] != type) { |
1324 | eir += field_len + 1; | |
1325 | continue; | |
1326 | } | |
1327 | ||
1328 | /* Zero length data */ | |
1329 | if (field_len == 1) | |
1330 | return NULL; | |
6759a675 | 1331 | |
0d3b7f64 JH |
1332 | if (data_len) |
1333 | *data_len = field_len - 1; | |
1334 | ||
1335 | return &eir[2]; | |
6759a675 JH |
1336 | } |
1337 | ||
0d3b7f64 | 1338 | return NULL; |
6759a675 JH |
1339 | } |
1340 | ||
301cb2d8 JH |
1341 | static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) |
1342 | { | |
dbbfa2ab | 1343 | if (addr_type != ADDR_LE_DEV_RANDOM) |
301cb2d8 JH |
1344 | return false; |
1345 | ||
1346 | if ((bdaddr->b[5] & 0xc0) == 0x40) | |
1347 | return true; | |
1348 | ||
1349 | return false; | |
1350 | } | |
1351 | ||
c46245b3 JH |
1352 | static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) |
1353 | { | |
1354 | if (addr_type == ADDR_LE_DEV_PUBLIC) | |
1355 | return true; | |
1356 | ||
1357 | /* Check for Random Static address type */ | |
1358 | if ((addr->b[5] & 0xc0) == 0xc0) | |
1359 | return true; | |
1360 | ||
1361 | return false; | |
1362 | } | |
1363 | ||
2426f3a5 JH |
1364 | static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, |
1365 | bdaddr_t *bdaddr, u8 addr_type) | |
1366 | { | |
1367 | if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) | |
1368 | return NULL; | |
1369 | ||
1370 | return hci_find_irk_by_rpa(hdev, bdaddr); | |
1371 | } | |
1372 | ||
d4905f24 AG |
1373 | static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, |
1374 | u16 to_multiplier) | |
1375 | { | |
1376 | u16 max_latency; | |
1377 | ||
1378 | if (min > max || min < 6 || max > 3200) | |
1379 | return -EINVAL; | |
1380 | ||
1381 | if (to_multiplier < 10 || to_multiplier > 3200) | |
1382 | return -EINVAL; | |
1383 | ||
1384 | if (max >= to_multiplier * 8) | |
1385 | return -EINVAL; | |
1386 | ||
8757825b | 1387 | max_latency = (to_multiplier * 4 / max) - 1; |
d4905f24 AG |
1388 | if (latency > 499 || latency > max_latency) |
1389 | return -EINVAL; | |
1390 | ||
1391 | return 0; | |
1392 | } | |
1393 | ||
1da177e4 LT |
1394 | int hci_register_cb(struct hci_cb *hcb); |
1395 | int hci_unregister_cb(struct hci_cb *hcb); | |
1396 | ||
75e84b7c | 1397 | struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1398 | const void *param, u32 timeout); |
7b1abbbe | 1399 | struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1400 | const void *param, u8 event, u32 timeout); |
75e84b7c | 1401 | |
07dc93dd JH |
1402 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, |
1403 | const void *param); | |
73d80deb | 1404 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
0d861d8b | 1405 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
1da177e4 | 1406 | |
a9de9248 | 1407 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
1da177e4 | 1408 | |
fbef168f LP |
1409 | struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
1410 | const void *param, u32 timeout); | |
1411 | ||
1da177e4 | 1412 | /* ----- HCI Sockets ----- */ |
470fe1b5 | 1413 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
7129069e | 1414 | void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, |
c08b1a1d | 1415 | int flag, struct sock *skip_sk); |
cd82e61c | 1416 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
38ceaa00 MH |
1417 | void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, |
1418 | void *data, u16 data_len, ktime_t tstamp, | |
1419 | int flag, struct sock *skip_sk); | |
1da177e4 | 1420 | |
040030ef MH |
1421 | void hci_sock_dev_event(struct hci_dev *hdev, int event); |
1422 | ||
a958452a MH |
1423 | #define HCI_MGMT_VAR_LEN BIT(0) |
1424 | #define HCI_MGMT_NO_HDEV BIT(1) | |
1425 | #define HCI_MGMT_UNTRUSTED BIT(2) | |
1426 | #define HCI_MGMT_UNCONFIGURED BIT(3) | |
b9a245fb | 1427 | |
801c1e8d JH |
1428 | struct hci_mgmt_handler { |
1429 | int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, | |
1430 | u16 data_len); | |
801c1e8d | 1431 | size_t data_len; |
b9a245fb | 1432 | unsigned long flags; |
801c1e8d JH |
1433 | }; |
1434 | ||
1435 | struct hci_mgmt_chan { | |
1436 | struct list_head list; | |
1437 | unsigned short channel; | |
1438 | size_t handler_count; | |
1439 | const struct hci_mgmt_handler *handlers; | |
88b94ce9 | 1440 | void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); |
801c1e8d JH |
1441 | }; |
1442 | ||
1443 | int hci_mgmt_chan_register(struct hci_mgmt_chan *c); | |
1444 | void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); | |
1445 | ||
0381101f | 1446 | /* Management interface */ |
591f47f3 AG |
1447 | #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
1448 | #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ | |
1449 | BIT(BDADDR_LE_RANDOM)) | |
1450 | #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ | |
1451 | BIT(BDADDR_LE_PUBLIC) | \ | |
1452 | BIT(BDADDR_LE_RANDOM)) | |
f39799f5 | 1453 | |
0d8cc935 AG |
1454 | /* These LE scan and inquiry parameters were chosen according to LE General |
1455 | * Discovery Procedure specification. | |
1456 | */ | |
1457 | #define DISCOV_LE_SCAN_WIN 0x12 | |
1458 | #define DISCOV_LE_SCAN_INT 0x12 | |
3d5a76f0 | 1459 | #define DISCOV_LE_TIMEOUT 10240 /* msec */ |
ae55f598 | 1460 | #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ |
0d8cc935 AG |
1461 | #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 |
1462 | #define DISCOV_BREDR_INQUIRY_LEN 0x08 | |
4b0e0ced | 1463 | #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ |
0d8cc935 | 1464 | |
03c979c4 | 1465 | void mgmt_fill_version_info(void *ver); |
91a668b0 | 1466 | int mgmt_new_settings(struct hci_dev *hdev); |
bf6b56db MH |
1467 | void mgmt_index_added(struct hci_dev *hdev); |
1468 | void mgmt_index_removed(struct hci_dev *hdev); | |
3eec705e | 1469 | void mgmt_set_powered_failed(struct hci_dev *hdev, int err); |
2ff13894 JH |
1470 | void mgmt_power_on(struct hci_dev *hdev, int err); |
1471 | void __mgmt_power_off(struct hci_dev *hdev); | |
dc4a5ee2 MH |
1472 | void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, |
1473 | bool persistent); | |
48ec92fa AA |
1474 | void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, |
1475 | u32 flags, u8 *name, u8 name_len); | |
9b80ec5e | 1476 | void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
12d4a3b2 JH |
1477 | u8 link_type, u8 addr_type, u8 reason, |
1478 | bool mgmt_connected); | |
7892924c MH |
1479 | void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1480 | u8 link_type, u8 addr_type, u8 status); | |
445608d0 MH |
1481 | void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1482 | u8 addr_type, u8 status); | |
ce0e4a0d | 1483 | void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
e669cf80 MH |
1484 | void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1485 | u8 status); | |
3eb38528 MH |
1486 | void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1487 | u8 status); | |
744cf19e | 1488 | int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
39adbffe | 1489 | u8 link_type, u8 addr_type, u32 value, |
04124681 | 1490 | u8 confirm_hint); |
744cf19e | 1491 | int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1492 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1493 | int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1494 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1495 | int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1496 | u8 link_type, u8 addr_type); |
604086b7 | 1497 | int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1498 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1499 | int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1500 | u8 link_type, u8 addr_type, u8 status); |
92a25256 JH |
1501 | int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1502 | u8 link_type, u8 addr_type, u32 passkey, | |
1503 | u8 entered); | |
e1e930f5 | 1504 | void mgmt_auth_failed(struct hci_conn *conn, u8 status); |
464996ae | 1505 | void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
3e248560 | 1506 | void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
4e1b0245 MH |
1507 | void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
1508 | u8 status); | |
7667da34 | 1509 | void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
e68f072b | 1510 | void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); |
2154d3f4 | 1511 | void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); |
901801b9 | 1512 | void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
af58925c MH |
1513 | u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, |
1514 | u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); | |
9cf12aee MH |
1515 | void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1516 | u8 addr_type, s8 rssi, u8 *name, u8 name_len); | |
2f1e063b | 1517 | void mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
84c61d92 | 1518 | bool mgmt_powering_down(struct hci_dev *hdev); |
53ac6ab6 | 1519 | void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); |
cad20c27 | 1520 | void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); |
53ac6ab6 MH |
1521 | void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, |
1522 | bool persistent); | |
ffb5a827 | 1523 | void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, |
f4869e2a JH |
1524 | u8 bdaddr_type, u8 store_hint, u16 min_interval, |
1525 | u16 max_interval, u16 latency, u16 timeout); | |
f4a407be | 1526 | void mgmt_smp_complete(struct hci_conn *conn, bool complete); |
f2252570 | 1527 | bool mgmt_get_connectable(struct hci_dev *hdev); |
53c0ba74 | 1528 | void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status); |
aed1a885 | 1529 | void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status); |
f2252570 JH |
1530 | u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); |
1531 | void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, | |
1532 | u8 instance); | |
1533 | void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, | |
1534 | u8 instance); | |
346af67b | 1535 | |
7d6ca693 JH |
1536 | u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, |
1537 | u16 to_multiplier); | |
fe39c7b2 | 1538 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, |
8b76ce34 | 1539 | __u8 ltk[16], __u8 key_size); |
2519a1fc | 1540 | |
a1f4c318 JH |
1541 | void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1542 | u8 *bdaddr_type); | |
ebd3a747 | 1543 | |
5d4d62f6 FD |
1544 | #define SCO_AIRMODE_MASK 0x0003 |
1545 | #define SCO_AIRMODE_CVSD 0x0000 | |
1546 | #define SCO_AIRMODE_TRANSP 0x0003 | |
1547 | ||
1da177e4 | 1548 | #endif /* __HCI_CORE_H */ |