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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]; | |
de181e88 | 174 | __s8 tx_power; |
a73c046a JK |
175 | bdaddr_t random_addr; |
176 | bool rpa_expired; | |
177 | struct delayed_work rpa_expired_cb; | |
203fea01 AU |
178 | }; |
179 | ||
db25be66 | 180 | #define HCI_MAX_ADV_INSTANCES 5 |
d2609b34 FG |
181 | #define HCI_DEFAULT_ADV_DURATION 2 |
182 | ||
490c5bab JH |
183 | #define HCI_MAX_SHORT_NAME_LENGTH 10 |
184 | ||
d6bfd59c JH |
185 | /* Default LE RPA expiry time, 15 minutes */ |
186 | #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) | |
187 | ||
31ad1691 AK |
188 | /* Default min/max age of connection information (1s/3s) */ |
189 | #define DEFAULT_CONN_INFO_MIN_AGE 1000 | |
190 | #define DEFAULT_CONN_INFO_MAX_AGE 3000 | |
191 | ||
903e4541 AE |
192 | struct amp_assoc { |
193 | __u16 len; | |
194 | __u16 offset; | |
93c284ee AE |
195 | __u16 rem_len; |
196 | __u16 len_so_far; | |
903e4541 AE |
197 | __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; |
198 | }; | |
199 | ||
d2c5d77f | 200 | #define HCI_MAX_PAGES 3 |
cad718ed | 201 | |
1da177e4 LT |
202 | struct hci_dev { |
203 | struct list_head list; | |
09fd0de5 | 204 | struct mutex lock; |
1da177e4 LT |
205 | |
206 | char name[8]; | |
207 | unsigned long flags; | |
208 | __u16 id; | |
c13854ce | 209 | __u8 bus; |
943da25d | 210 | __u8 dev_type; |
1da177e4 | 211 | bdaddr_t bdaddr; |
e30d3f5f | 212 | bdaddr_t setup_addr; |
24c457e2 | 213 | bdaddr_t public_addr; |
7a4cd51d | 214 | bdaddr_t random_addr; |
d13eafce | 215 | bdaddr_t static_addr; |
56ed2cb8 | 216 | __u8 adv_addr_type; |
1f6c6378 | 217 | __u8 dev_name[HCI_MAX_NAME_LENGTH]; |
490c5bab | 218 | __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; |
80a1e1db | 219 | __u8 eir[HCI_MAX_EIR_LENGTH]; |
c4960ecf | 220 | __u16 appearance; |
a9de9248 | 221 | __u8 dev_class[3]; |
1aff6f09 JH |
222 | __u8 major_class; |
223 | __u8 minor_class; | |
d2c5d77f | 224 | __u8 max_page; |
cad718ed | 225 | __u8 features[HCI_MAX_PAGES][8]; |
60e77321 | 226 | __u8 le_features[8]; |
cf1d081f | 227 | __u8 le_white_list_size; |
cfdb0c2d | 228 | __u8 le_resolv_list_size; |
6b49bcb4 | 229 | __u8 le_num_of_adv_sets; |
9b008c04 | 230 | __u8 le_states[8]; |
a9de9248 | 231 | __u8 commands[64]; |
1143e5a6 MH |
232 | __u8 hci_ver; |
233 | __u16 hci_rev; | |
d5859e22 | 234 | __u8 lmp_ver; |
1143e5a6 | 235 | __u16 manufacturer; |
7d69230c | 236 | __u16 lmp_subver; |
1da177e4 | 237 | __u16 voice_setting; |
b4cb9fb2 | 238 | __u8 num_iac; |
c2f0f979 MH |
239 | __u8 stored_max_keys; |
240 | __u8 stored_num_keys; | |
17fa4b9d | 241 | __u8 io_capability; |
91c4e9b1 | 242 | __s8 inq_tx_power; |
f332ec66 JH |
243 | __u16 page_scan_interval; |
244 | __u16 page_scan_window; | |
245 | __u8 page_scan_type; | |
3f959d46 | 246 | __u8 le_adv_channel_map; |
628531c9 GL |
247 | __u16 le_adv_min_interval; |
248 | __u16 le_adv_max_interval; | |
533553f8 | 249 | __u8 le_scan_type; |
bef64738 MH |
250 | __u16 le_scan_interval; |
251 | __u16 le_scan_window; | |
4e70c7e7 MH |
252 | __u16 le_conn_min_interval; |
253 | __u16 le_conn_max_interval; | |
04fb7d90 MH |
254 | __u16 le_conn_latency; |
255 | __u16 le_supv_timeout; | |
a8e1bfaa MH |
256 | __u16 le_def_tx_len; |
257 | __u16 le_def_tx_time; | |
258 | __u16 le_max_tx_len; | |
259 | __u16 le_max_tx_time; | |
260 | __u16 le_max_rx_len; | |
261 | __u16 le_max_rx_time; | |
b9a7a61e | 262 | __u16 discov_interleaved_timeout; |
31ad1691 AK |
263 | __u16 conn_info_min_age; |
264 | __u16 conn_info_max_age; | |
06f5b778 | 265 | __u8 ssp_debug_mode; |
c7741d16 | 266 | __u8 hw_error_code; |
33f35721 | 267 | __u32 clock; |
f332ec66 | 268 | |
2b9be137 MH |
269 | __u16 devid_source; |
270 | __u16 devid_vendor; | |
271 | __u16 devid_product; | |
272 | __u16 devid_version; | |
1da177e4 LT |
273 | |
274 | __u16 pkt_type; | |
5b7f9909 | 275 | __u16 esco_type; |
1da177e4 LT |
276 | __u16 link_policy; |
277 | __u16 link_mode; | |
278 | ||
04837f64 MH |
279 | __u32 idle_timeout; |
280 | __u16 sniff_min_interval; | |
281 | __u16 sniff_max_interval; | |
282 | ||
928abaa7 AE |
283 | __u8 amp_status; |
284 | __u32 amp_total_bw; | |
285 | __u32 amp_max_bw; | |
286 | __u32 amp_min_latency; | |
287 | __u32 amp_max_pdu; | |
288 | __u8 amp_type; | |
289 | __u16 amp_pal_cap; | |
290 | __u16 amp_assoc_size; | |
291 | __u32 amp_max_flush_to; | |
292 | __u32 amp_be_flush_to; | |
293 | ||
903e4541 AE |
294 | struct amp_assoc loc_assoc; |
295 | ||
1e89cffb AE |
296 | __u8 flow_ctl_mode; |
297 | ||
9f61656a JH |
298 | unsigned int auto_accept_delay; |
299 | ||
1da177e4 LT |
300 | unsigned long quirks; |
301 | ||
302 | atomic_t cmd_cnt; | |
303 | unsigned int acl_cnt; | |
304 | unsigned int sco_cnt; | |
6ed58ec5 | 305 | unsigned int le_cnt; |
1da177e4 LT |
306 | |
307 | unsigned int acl_mtu; | |
308 | unsigned int sco_mtu; | |
6ed58ec5 | 309 | unsigned int le_mtu; |
1da177e4 LT |
310 | unsigned int acl_pkts; |
311 | unsigned int sco_pkts; | |
6ed58ec5 | 312 | unsigned int le_pkts; |
1da177e4 | 313 | |
350ee4cf AE |
314 | __u16 block_len; |
315 | __u16 block_mtu; | |
316 | __u16 num_blocks; | |
317 | __u16 block_cnt; | |
318 | ||
1da177e4 LT |
319 | unsigned long acl_last_tx; |
320 | unsigned long sco_last_tx; | |
6ed58ec5 | 321 | unsigned long le_last_tx; |
1da177e4 | 322 | |
6decb5b4 JK |
323 | __u8 le_tx_def_phys; |
324 | __u8 le_rx_def_phys; | |
325 | ||
f48fd9c8 | 326 | struct workqueue_struct *workqueue; |
6ead1bbc | 327 | struct workqueue_struct *req_workqueue; |
f48fd9c8 | 328 | |
ab81cbf9 | 329 | struct work_struct power_on; |
3243553f | 330 | struct delayed_work power_off; |
c7741d16 | 331 | struct work_struct error_reset; |
ab81cbf9 | 332 | |
16ab91ab JH |
333 | __u16 discov_timeout; |
334 | struct delayed_work discov_off; | |
335 | ||
7d78525d JH |
336 | struct delayed_work service_cache; |
337 | ||
65cc2b49 | 338 | struct delayed_work cmd_timer; |
b78752cc MH |
339 | |
340 | struct work_struct rx_work; | |
c347b765 | 341 | struct work_struct cmd_work; |
3eff45ea | 342 | struct work_struct tx_work; |
1da177e4 | 343 | |
e68f072b | 344 | struct work_struct discov_update; |
2e93e53b | 345 | struct work_struct bg_scan_update; |
01b1cb87 | 346 | struct work_struct scan_update; |
53c0ba74 | 347 | struct work_struct connectable_update; |
aed1a885 | 348 | struct work_struct discoverable_update; |
7c1fbed2 JH |
349 | struct delayed_work le_scan_disable; |
350 | struct delayed_work le_scan_restart; | |
2e93e53b | 351 | |
1da177e4 LT |
352 | struct sk_buff_head rx_q; |
353 | struct sk_buff_head raw_q; | |
354 | struct sk_buff_head cmd_q; | |
355 | ||
356 | struct sk_buff *sent_cmd; | |
357 | ||
a6a67efd | 358 | struct mutex req_lock; |
1da177e4 LT |
359 | wait_queue_head_t req_wait_q; |
360 | __u32 req_status; | |
361 | __u32 req_result; | |
f60cb305 | 362 | struct sk_buff *req_skb; |
a5040efa | 363 | |
70db83c4 | 364 | void *smp_data; |
ef8efe4b | 365 | void *smp_bredr_data; |
2e58ef3e | 366 | |
30883512 | 367 | struct discovery_state discovery; |
1da177e4 LT |
368 | struct hci_conn_hash conn_hash; |
369 | ||
5c136e90 AG |
370 | struct list_head mgmt_pending; |
371 | struct list_head blacklist; | |
6659358e | 372 | struct list_head whitelist; |
2aeb9a1a | 373 | struct list_head uuids; |
55ed8ca1 | 374 | struct list_head link_keys; |
b899efaf | 375 | struct list_head long_term_keys; |
970c4e46 | 376 | struct list_head identity_resolving_keys; |
2763eda6 | 377 | struct list_head remote_oob_data; |
d2ab0ac1 | 378 | struct list_head le_white_list; |
cfdb0c2d | 379 | struct list_head le_resolv_list; |
15819a70 | 380 | struct list_head le_conn_params; |
77a77a30 | 381 | struct list_head pend_le_conns; |
66f8455a | 382 | struct list_head pend_le_reports; |
2763eda6 | 383 | |
1da177e4 LT |
384 | struct hci_dev_stats stat; |
385 | ||
70f23020 | 386 | atomic_t promisc; |
1da177e4 | 387 | |
5177a838 MH |
388 | const char *hw_info; |
389 | const char *fw_info; | |
ca325f69 MH |
390 | struct dentry *debugfs; |
391 | ||
a91f2e39 | 392 | struct device dev; |
1da177e4 | 393 | |
611b30f7 MH |
394 | struct rfkill *rfkill; |
395 | ||
eacb44df | 396 | DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); |
d23264a8 | 397 | |
8fa19098 | 398 | __s8 adv_tx_power; |
3f0f524b JH |
399 | __u8 adv_data[HCI_MAX_AD_LENGTH]; |
400 | __u8 adv_data_len; | |
f8e808bd MH |
401 | __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; |
402 | __u8 scan_rsp_data_len; | |
8fa19098 | 403 | |
d2609b34 FG |
404 | struct list_head adv_instances; |
405 | unsigned int adv_instance_cnt; | |
406 | __u8 cur_adv_instance; | |
5d900e46 FG |
407 | __u16 adv_instance_timeout; |
408 | struct delayed_work adv_instance_expire; | |
203fea01 | 409 | |
863efaf2 | 410 | __u8 irk[16]; |
d6bfd59c JH |
411 | __u32 rpa_timeout; |
412 | struct delayed_work rpa_expired; | |
2b5224dc | 413 | bdaddr_t rpa; |
863efaf2 | 414 | |
53f863a6 | 415 | #if IS_ENABLED(CONFIG_BT_LEDS) |
6d5d2ee6 | 416 | struct led_trigger *power_led; |
53f863a6 | 417 | #endif |
6d5d2ee6 | 418 | |
1da177e4 LT |
419 | int (*open)(struct hci_dev *hdev); |
420 | int (*close)(struct hci_dev *hdev); | |
421 | int (*flush)(struct hci_dev *hdev); | |
f41c70c4 | 422 | int (*setup)(struct hci_dev *hdev); |
a44fecbd | 423 | int (*shutdown)(struct hci_dev *hdev); |
7bd8f09f | 424 | int (*send)(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 425 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
c7741d16 | 426 | void (*hw_error)(struct hci_dev *hdev, u8 code); |
98a63aaf | 427 | int (*post_init)(struct hci_dev *hdev); |
4b4113d6 | 428 | int (*set_diag)(struct hci_dev *hdev, bool enable); |
24c457e2 | 429 | int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); |
1da177e4 LT |
430 | }; |
431 | ||
53502d69 AE |
432 | #define HCI_PHY_HANDLE(handle) (handle & 0xff) |
433 | ||
1da177e4 LT |
434 | struct hci_conn { |
435 | struct list_head list; | |
436 | ||
adc4266d | 437 | atomic_t refcnt; |
adc4266d SJ |
438 | |
439 | bdaddr_t dst; | |
5a9d0a3f | 440 | __u8 dst_type; |
662e8820 | 441 | bdaddr_t src; |
e7c4096e | 442 | __u8 src_type; |
cb1d68f7 JH |
443 | bdaddr_t init_addr; |
444 | __u8 init_addr_type; | |
445 | bdaddr_t resp_addr; | |
446 | __u8 resp_addr_type; | |
adc4266d SJ |
447 | __u16 handle; |
448 | __u16 state; | |
449 | __u8 mode; | |
450 | __u8 type; | |
40bef302 | 451 | __u8 role; |
a0c808b3 | 452 | bool out; |
adc4266d SJ |
453 | __u8 attempt; |
454 | __u8 dev_class[3]; | |
cad718ed | 455 | __u8 features[HCI_MAX_PAGES][8]; |
adc4266d SJ |
456 | __u16 pkt_type; |
457 | __u16 link_policy; | |
13d39315 | 458 | __u8 key_type; |
adc4266d SJ |
459 | __u8 auth_type; |
460 | __u8 sec_level; | |
461 | __u8 pending_sec_level; | |
462 | __u8 pin_length; | |
726b4ffc | 463 | __u8 enc_key_size; |
adc4266d | 464 | __u8 io_capability; |
92a25256 JH |
465 | __u32 passkey_notify; |
466 | __u8 passkey_entered; | |
adc4266d | 467 | __u16 disc_timeout; |
09ae260b | 468 | __u16 conn_timeout; |
10c62ddc | 469 | __u16 setting; |
1e406eef AG |
470 | __u16 le_conn_min_interval; |
471 | __u16 le_conn_max_interval; | |
e04fde60 MH |
472 | __u16 le_conn_interval; |
473 | __u16 le_conn_latency; | |
474 | __u16 le_supv_timeout; | |
fd45ada9 AA |
475 | __u8 le_adv_data[HCI_MAX_AD_LENGTH]; |
476 | __u8 le_adv_data_len; | |
5ae76a94 | 477 | __s8 rssi; |
5a134fae | 478 | __s8 tx_power; |
d0455ed9 | 479 | __s8 max_tx_power; |
51a8efd7 | 480 | unsigned long flags; |
04837f64 | 481 | |
33f35721 JH |
482 | __u32 clock; |
483 | __u16 clock_accuracy; | |
484 | ||
dd983808 AK |
485 | unsigned long conn_info_timestamp; |
486 | ||
03b555e1 | 487 | __u8 remote_cap; |
03b555e1 | 488 | __u8 remote_auth; |
3161ae1c | 489 | __u8 remote_id; |
03b555e1 | 490 | |
adc4266d | 491 | unsigned int sent; |
04837f64 | 492 | |
1da177e4 | 493 | struct sk_buff_head data_q; |
2c33c06a | 494 | struct list_head chan_list; |
1da177e4 | 495 | |
19c40e3b | 496 | struct delayed_work disc_work; |
7bc18d9d | 497 | struct delayed_work auto_accept_work; |
a74a84f6 | 498 | struct delayed_work idle_work; |
9489eca4 | 499 | struct delayed_work le_conn_timeout; |
8ce783dc | 500 | struct work_struct le_scan_cleanup; |
04837f64 | 501 | |
b219e3ac | 502 | struct device dev; |
23b9ceb7 | 503 | struct dentry *debugfs; |
b219e3ac | 504 | |
1da177e4 LT |
505 | struct hci_dev *hdev; |
506 | void *l2cap_data; | |
507 | void *sco_data; | |
9740e49d | 508 | struct amp_mgr *amp_mgr; |
1da177e4 LT |
509 | |
510 | struct hci_conn *link; | |
e9a416b5 JH |
511 | |
512 | void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); | |
513 | void (*security_cfm_cb) (struct hci_conn *conn, u8 status); | |
514 | void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); | |
1da177e4 LT |
515 | }; |
516 | ||
73d80deb LAD |
517 | struct hci_chan { |
518 | struct list_head list; | |
42c4e53e | 519 | __u16 handle; |
73d80deb LAD |
520 | struct hci_conn *conn; |
521 | struct sk_buff_head data_q; | |
522 | unsigned int sent; | |
168df8e5 | 523 | __u8 state; |
73d80deb LAD |
524 | }; |
525 | ||
15819a70 AG |
526 | struct hci_conn_params { |
527 | struct list_head list; | |
93450c75 | 528 | struct list_head action; |
15819a70 AG |
529 | |
530 | bdaddr_t addr; | |
531 | u8 addr_type; | |
532 | ||
533 | u16 conn_min_interval; | |
534 | u16 conn_max_interval; | |
f044eb05 MH |
535 | u16 conn_latency; |
536 | u16 supervision_timeout; | |
9fcb18ef AG |
537 | |
538 | enum { | |
539 | HCI_AUTO_CONN_DISABLED, | |
a3451d27 | 540 | HCI_AUTO_CONN_REPORT, |
4b9e7e75 | 541 | HCI_AUTO_CONN_DIRECT, |
9fcb18ef AG |
542 | HCI_AUTO_CONN_ALWAYS, |
543 | HCI_AUTO_CONN_LINK_LOSS, | |
158e9218 | 544 | HCI_AUTO_CONN_EXPLICIT, |
9fcb18ef | 545 | } auto_connect; |
f161dd41 JH |
546 | |
547 | struct hci_conn *conn; | |
158e9218 | 548 | bool explicit_connect; |
15819a70 AG |
549 | }; |
550 | ||
1da177e4 LT |
551 | extern struct list_head hci_dev_list; |
552 | extern struct list_head hci_cb_list; | |
553 | extern rwlock_t hci_dev_list_lock; | |
fba7ecf0 | 554 | extern struct mutex hci_cb_list_lock; |
1da177e4 | 555 | |
eacb44df MH |
556 | #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) |
557 | #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) | |
558 | #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) | |
559 | #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) | |
560 | #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) | |
561 | #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) | |
562 | #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) | |
563 | ||
564 | #define hci_dev_clear_volatile_flags(hdev) \ | |
565 | do { \ | |
566 | hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ | |
567 | hci_dev_clear_flag(hdev, HCI_LE_ADV); \ | |
568 | hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ | |
569 | } while (0) | |
516018a9 | 570 | |
686ebf28 | 571 | /* ----- HCI interface to upper protocols ----- */ |
e74e58f8 | 572 | int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); |
e74e58f8 | 573 | int l2cap_disconn_ind(struct hci_conn *hcon); |
9b4c3336 | 574 | void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); |
e74e58f8 | 575 | |
ff50e8af | 576 | #if IS_ENABLED(CONFIG_BT_BREDR) |
e74e58f8 | 577 | int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); |
9b4c3336 | 578 | void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); |
ff50e8af AW |
579 | #else |
580 | static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
581 | __u8 *flags) | |
582 | { | |
583 | return 0; | |
584 | } | |
585 | ||
586 | static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) | |
587 | { | |
588 | } | |
589 | #endif | |
686ebf28 | 590 | |
1da177e4 | 591 | /* ----- Inquiry cache ----- */ |
70f23020 AE |
592 | #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ |
593 | #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ | |
1da177e4 | 594 | |
30883512 | 595 | static inline void discovery_init(struct hci_dev *hdev) |
1da177e4 | 596 | { |
ff9ef578 | 597 | hdev->discovery.state = DISCOVERY_STOPPED; |
30883512 JH |
598 | INIT_LIST_HEAD(&hdev->discovery.all); |
599 | INIT_LIST_HEAD(&hdev->discovery.unknown); | |
600 | INIT_LIST_HEAD(&hdev->discovery.resolve); | |
da25cf6a | 601 | hdev->discovery.report_invalid_rssi = true; |
37eab042 | 602 | hdev->discovery.rssi = HCI_RSSI_INVALID; |
1da177e4 LT |
603 | } |
604 | ||
0256325e MH |
605 | static inline void hci_discovery_filter_clear(struct hci_dev *hdev) |
606 | { | |
82f8b651 | 607 | hdev->discovery.result_filtering = false; |
da25cf6a | 608 | hdev->discovery.report_invalid_rssi = true; |
0256325e MH |
609 | hdev->discovery.rssi = HCI_RSSI_INVALID; |
610 | hdev->discovery.uuid_count = 0; | |
611 | kfree(hdev->discovery.uuids); | |
612 | hdev->discovery.uuids = NULL; | |
2d28cfe7 JP |
613 | hdev->discovery.scan_start = 0; |
614 | hdev->discovery.scan_duration = 0; | |
0256325e MH |
615 | } |
616 | ||
30dc78e1 JH |
617 | bool hci_discovery_active(struct hci_dev *hdev); |
618 | ||
ff9ef578 JH |
619 | void hci_discovery_set_state(struct hci_dev *hdev, int state); |
620 | ||
1da177e4 LT |
621 | static inline int inquiry_cache_empty(struct hci_dev *hdev) |
622 | { | |
30883512 | 623 | return list_empty(&hdev->discovery.all); |
1da177e4 LT |
624 | } |
625 | ||
626 | static inline long inquiry_cache_age(struct hci_dev *hdev) | |
627 | { | |
30883512 | 628 | struct discovery_state *c = &hdev->discovery; |
1da177e4 LT |
629 | return jiffies - c->timestamp; |
630 | } | |
631 | ||
632 | static inline long inquiry_entry_age(struct inquiry_entry *e) | |
633 | { | |
634 | return jiffies - e->timestamp; | |
635 | } | |
636 | ||
5a9d0a3f | 637 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
04124681 | 638 | bdaddr_t *bdaddr); |
561aafbc | 639 | struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
04124681 | 640 | bdaddr_t *bdaddr); |
30dc78e1 | 641 | struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
04124681 GP |
642 | bdaddr_t *bdaddr, |
643 | int state); | |
a3d4e20a | 644 | void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
04124681 | 645 | struct inquiry_entry *ie); |
af58925c MH |
646 | u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
647 | bool name_known); | |
1f9b9a5d | 648 | void hci_inquiry_cache_flush(struct hci_dev *hdev); |
1da177e4 LT |
649 | |
650 | /* ----- HCI Connections ----- */ | |
651 | enum { | |
652 | HCI_CONN_AUTH_PEND, | |
19f8def0 | 653 | HCI_CONN_REAUTH_PEND, |
1da177e4 | 654 | HCI_CONN_ENCRYPT_PEND, |
04837f64 MH |
655 | HCI_CONN_RSWITCH_PEND, |
656 | HCI_CONN_MODE_CHANGE_PEND, | |
e73439d8 | 657 | HCI_CONN_SCO_SETUP_PEND, |
b644ba33 | 658 | HCI_CONN_MGMT_CONNECTED, |
58a681ef | 659 | HCI_CONN_SSP_ENABLED, |
eb9a8f3f | 660 | HCI_CONN_SC_ENABLED, |
abf76bad | 661 | HCI_CONN_AES_CCM, |
58a681ef | 662 | HCI_CONN_POWER_SAVE, |
af6a9c32 | 663 | HCI_CONN_FLUSH_KEY, |
4dae2798 JH |
664 | HCI_CONN_ENCRYPT, |
665 | HCI_CONN_AUTH, | |
666 | HCI_CONN_SECURE, | |
667 | HCI_CONN_FIPS, | |
fe59a05f | 668 | HCI_CONN_STK_ENCRYPT, |
977f8fce | 669 | HCI_CONN_AUTH_INITIATOR, |
f94b665d | 670 | HCI_CONN_DROP, |
89cbb063 | 671 | HCI_CONN_PARAM_REMOVAL_PEND, |
fe8bc5ac | 672 | HCI_CONN_NEW_LINK_KEY, |
158e9218 | 673 | HCI_CONN_SCANNING, |
160b9251 | 674 | HCI_CONN_AUTH_FAILURE, |
1da177e4 LT |
675 | }; |
676 | ||
aa64a8b5 JH |
677 | static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
678 | { | |
679 | struct hci_dev *hdev = conn->hdev; | |
d7a5a11d | 680 | return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && |
c3c7ea65 | 681 | test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); |
aa64a8b5 JH |
682 | } |
683 | ||
eb9a8f3f MH |
684 | static inline bool hci_conn_sc_enabled(struct hci_conn *conn) |
685 | { | |
686 | struct hci_dev *hdev = conn->hdev; | |
d7a5a11d | 687 | return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && |
eb9a8f3f MH |
688 | test_bit(HCI_CONN_SC_ENABLED, &conn->flags); |
689 | } | |
690 | ||
1da177e4 LT |
691 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
692 | { | |
693 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 | 694 | list_add_rcu(&c->list, &h->list); |
fcd89c09 VT |
695 | switch (c->type) { |
696 | case ACL_LINK: | |
1da177e4 | 697 | h->acl_num++; |
fcd89c09 | 698 | break; |
bd1eb66b AE |
699 | case AMP_LINK: |
700 | h->amp_num++; | |
701 | break; | |
fcd89c09 VT |
702 | case LE_LINK: |
703 | h->le_num++; | |
f8218dc6 JH |
704 | if (c->role == HCI_ROLE_SLAVE) |
705 | h->le_num_slave++; | |
fcd89c09 VT |
706 | break; |
707 | case SCO_LINK: | |
708 | case ESCO_LINK: | |
1da177e4 | 709 | h->sco_num++; |
fcd89c09 VT |
710 | break; |
711 | } | |
1da177e4 LT |
712 | } |
713 | ||
714 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) | |
715 | { | |
716 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 GP |
717 | |
718 | list_del_rcu(&c->list); | |
719 | synchronize_rcu(); | |
720 | ||
fcd89c09 VT |
721 | switch (c->type) { |
722 | case ACL_LINK: | |
1da177e4 | 723 | h->acl_num--; |
fcd89c09 | 724 | break; |
bd1eb66b AE |
725 | case AMP_LINK: |
726 | h->amp_num--; | |
727 | break; | |
fcd89c09 VT |
728 | case LE_LINK: |
729 | h->le_num--; | |
f8218dc6 JH |
730 | if (c->role == HCI_ROLE_SLAVE) |
731 | h->le_num_slave--; | |
fcd89c09 VT |
732 | break; |
733 | case SCO_LINK: | |
734 | case ESCO_LINK: | |
1da177e4 | 735 | h->sco_num--; |
fcd89c09 VT |
736 | break; |
737 | } | |
1da177e4 LT |
738 | } |
739 | ||
52087a79 LAD |
740 | static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
741 | { | |
742 | struct hci_conn_hash *h = &hdev->conn_hash; | |
743 | switch (type) { | |
744 | case ACL_LINK: | |
745 | return h->acl_num; | |
bd1eb66b AE |
746 | case AMP_LINK: |
747 | return h->amp_num; | |
52087a79 LAD |
748 | case LE_LINK: |
749 | return h->le_num; | |
750 | case SCO_LINK: | |
751 | case ESCO_LINK: | |
752 | return h->sco_num; | |
753 | default: | |
754 | return 0; | |
755 | } | |
756 | } | |
757 | ||
f4f07505 JH |
758 | static inline unsigned int hci_conn_count(struct hci_dev *hdev) |
759 | { | |
760 | struct hci_conn_hash *c = &hdev->conn_hash; | |
761 | ||
762 | return c->acl_num + c->amp_num + c->sco_num + c->le_num; | |
763 | } | |
764 | ||
845472e8 MH |
765 | static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) |
766 | { | |
767 | struct hci_conn_hash *h = &hdev->conn_hash; | |
768 | struct hci_conn *c; | |
769 | __u8 type = INVALID_LINK; | |
770 | ||
771 | rcu_read_lock(); | |
772 | ||
773 | list_for_each_entry_rcu(c, &h->list, list) { | |
774 | if (c->handle == handle) { | |
775 | type = c->type; | |
776 | break; | |
777 | } | |
778 | } | |
779 | ||
780 | rcu_read_unlock(); | |
781 | ||
782 | return type; | |
783 | } | |
784 | ||
1da177e4 | 785 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
adc4266d | 786 | __u16 handle) |
1da177e4 LT |
787 | { |
788 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
789 | struct hci_conn *c; |
790 | ||
bf4c6325 GP |
791 | rcu_read_lock(); |
792 | ||
793 | list_for_each_entry_rcu(c, &h->list, list) { | |
794 | if (c->handle == handle) { | |
795 | rcu_read_unlock(); | |
1da177e4 | 796 | return c; |
bf4c6325 | 797 | } |
1da177e4 | 798 | } |
bf4c6325 GP |
799 | rcu_read_unlock(); |
800 | ||
1da177e4 LT |
801 | return NULL; |
802 | } | |
803 | ||
804 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, | |
adc4266d | 805 | __u8 type, bdaddr_t *ba) |
1da177e4 LT |
806 | { |
807 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
808 | struct hci_conn *c; |
809 | ||
bf4c6325 GP |
810 | rcu_read_lock(); |
811 | ||
812 | list_for_each_entry_rcu(c, &h->list, list) { | |
813 | if (c->type == type && !bacmp(&c->dst, ba)) { | |
814 | rcu_read_unlock(); | |
1da177e4 | 815 | return c; |
bf4c6325 | 816 | } |
1da177e4 | 817 | } |
bf4c6325 GP |
818 | |
819 | rcu_read_unlock(); | |
820 | ||
1da177e4 LT |
821 | return NULL; |
822 | } | |
823 | ||
1b51c7b6 JH |
824 | static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, |
825 | bdaddr_t *ba, | |
826 | __u8 ba_type) | |
827 | { | |
828 | struct hci_conn_hash *h = &hdev->conn_hash; | |
829 | struct hci_conn *c; | |
830 | ||
831 | rcu_read_lock(); | |
832 | ||
833 | list_for_each_entry_rcu(c, &h->list, list) { | |
834 | if (c->type != LE_LINK) | |
835 | continue; | |
836 | ||
837 | if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { | |
838 | rcu_read_unlock(); | |
839 | return c; | |
840 | } | |
841 | } | |
842 | ||
843 | rcu_read_unlock(); | |
844 | ||
845 | return NULL; | |
846 | } | |
847 | ||
4c67bc74 | 848 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
adc4266d | 849 | __u8 type, __u16 state) |
4c67bc74 MH |
850 | { |
851 | struct hci_conn_hash *h = &hdev->conn_hash; | |
4c67bc74 MH |
852 | struct hci_conn *c; |
853 | ||
bf4c6325 GP |
854 | rcu_read_lock(); |
855 | ||
856 | list_for_each_entry_rcu(c, &h->list, list) { | |
857 | if (c->type == type && c->state == state) { | |
858 | rcu_read_unlock(); | |
4c67bc74 | 859 | return c; |
bf4c6325 | 860 | } |
4c67bc74 | 861 | } |
73d80deb | 862 | |
bf4c6325 | 863 | rcu_read_unlock(); |
73d80deb | 864 | |
4c67bc74 | 865 | return NULL; |
73d80deb LAD |
866 | } |
867 | ||
e7d9ab73 JP |
868 | static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) |
869 | { | |
870 | struct hci_conn_hash *h = &hdev->conn_hash; | |
871 | struct hci_conn *c; | |
872 | ||
873 | rcu_read_lock(); | |
874 | ||
875 | list_for_each_entry_rcu(c, &h->list, list) { | |
876 | if (c->type == LE_LINK && c->state == BT_CONNECT && | |
877 | !test_bit(HCI_CONN_SCANNING, &c->flags)) { | |
878 | rcu_read_unlock(); | |
879 | return c; | |
880 | } | |
881 | } | |
882 | ||
883 | rcu_read_unlock(); | |
884 | ||
885 | return NULL; | |
886 | } | |
887 | ||
e3b679d5 | 888 | int hci_disconnect(struct hci_conn *conn, __u8 reason); |
2dea632f | 889 | bool hci_setup_sync(struct hci_conn *conn, __u16 handle); |
e73439d8 | 890 | void hci_sco_setup(struct hci_conn *conn, __u8 status); |
1da177e4 | 891 | |
a5c4e309 JH |
892 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, |
893 | u8 role); | |
a9de9248 MH |
894 | int hci_conn_del(struct hci_conn *conn); |
895 | void hci_conn_hash_flush(struct hci_dev *hdev); | |
896 | void hci_conn_check_pending(struct hci_dev *hdev); | |
1da177e4 | 897 | |
73d80deb | 898 | struct hci_chan *hci_chan_create(struct hci_conn *conn); |
9472007c | 899 | void hci_chan_del(struct hci_chan *chan); |
2c33c06a | 900 | void hci_chan_list_flush(struct hci_conn *conn); |
42c4e53e | 901 | struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); |
73d80deb | 902 | |
f75113a2 JP |
903 | struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, |
904 | u8 dst_type, u8 sec_level, | |
0ad06aa6 | 905 | u16 conn_timeout); |
04a6c589 | 906 | struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, |
cdd6275e | 907 | u8 dst_type, u8 sec_level, u16 conn_timeout, |
082f2300 | 908 | u8 role, bdaddr_t *direct_rpa); |
04a6c589 AG |
909 | struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, |
910 | u8 sec_level, u8 auth_type); | |
10c62ddc FD |
911 | struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, |
912 | __u16 setting); | |
e7c29cb1 | 913 | int hci_conn_check_link_mode(struct hci_conn *conn); |
b3b1b061 | 914 | int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); |
e7cafc45 JH |
915 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, |
916 | bool initiator); | |
8c1b2355 | 917 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
1da177e4 | 918 | |
14b12d0b | 919 | void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); |
1da177e4 | 920 | |
06c053fb AG |
921 | void hci_le_conn_failed(struct hci_conn *conn, u8 status); |
922 | ||
8d12356f DR |
923 | /* |
924 | * hci_conn_get() and hci_conn_put() are used to control the life-time of an | |
925 | * "hci_conn" object. They do not guarantee that the hci_conn object is running, | |
926 | * working or anything else. They just guarantee that the object is available | |
927 | * and can be dereferenced. So you can use its locks, local variables and any | |
928 | * other constant data. | |
929 | * Before accessing runtime data, you _must_ lock the object and then check that | |
930 | * it is still running. As soon as you release the locks, the connection might | |
931 | * get dropped, though. | |
932 | * | |
933 | * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control | |
934 | * how long the underlying connection is held. So every channel that runs on the | |
935 | * hci_conn object calls this to prevent the connection from disappearing. As | |
936 | * long as you hold a device, you must also guarantee that you have a valid | |
937 | * reference to the device via hci_conn_get() (or the initial reference from | |
938 | * hci_conn_add()). | |
939 | * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't | |
940 | * break because nobody cares for that. But this means, we cannot use | |
941 | * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). | |
942 | */ | |
943 | ||
51bb8457 | 944 | static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) |
8d12356f DR |
945 | { |
946 | get_device(&conn->dev); | |
51bb8457 | 947 | return conn; |
8d12356f DR |
948 | } |
949 | ||
950 | static inline void hci_conn_put(struct hci_conn *conn) | |
951 | { | |
952 | put_device(&conn->dev); | |
953 | } | |
954 | ||
1da177e4 LT |
955 | static inline void hci_conn_hold(struct hci_conn *conn) |
956 | { | |
71becf0c | 957 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 958 | |
1da177e4 | 959 | atomic_inc(&conn->refcnt); |
2f304d1e | 960 | cancel_delayed_work(&conn->disc_work); |
1da177e4 LT |
961 | } |
962 | ||
76a68ba0 | 963 | static inline void hci_conn_drop(struct hci_conn *conn) |
1da177e4 | 964 | { |
71becf0c | 965 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 966 | |
1da177e4 | 967 | if (atomic_dec_and_test(&conn->refcnt)) { |
04837f64 | 968 | unsigned long timeo; |
716e4ab5 AE |
969 | |
970 | switch (conn->type) { | |
971 | case ACL_LINK: | |
972 | case LE_LINK: | |
a74a84f6 | 973 | cancel_delayed_work(&conn->idle_work); |
6ac59344 | 974 | if (conn->state == BT_CONNECTED) { |
5f246e89 | 975 | timeo = conn->disc_timeout; |
6ac59344 | 976 | if (!conn->out) |
052b30b0 | 977 | timeo *= 2; |
5a9d0a3f | 978 | } else { |
eb78d7e5 | 979 | timeo = 0; |
5a9d0a3f | 980 | } |
716e4ab5 AE |
981 | break; |
982 | ||
983 | case AMP_LINK: | |
984 | timeo = conn->disc_timeout; | |
985 | break; | |
986 | ||
987 | default: | |
eb78d7e5 | 988 | timeo = 0; |
716e4ab5 | 989 | break; |
5a9d0a3f | 990 | } |
716e4ab5 | 991 | |
2f304d1e | 992 | cancel_delayed_work(&conn->disc_work); |
19c40e3b | 993 | queue_delayed_work(conn->hdev->workqueue, |
716e4ab5 | 994 | &conn->disc_work, timeo); |
1da177e4 LT |
995 | } |
996 | } | |
997 | ||
1da177e4 | 998 | /* ----- HCI Devices ----- */ |
dc946bd8 | 999 | static inline void hci_dev_put(struct hci_dev *d) |
1da177e4 | 1000 | { |
376261ae | 1001 | BT_DBG("%s orig refcnt %d", d->name, |
2c935bc5 | 1002 | kref_read(&d->dev.kobj.kref)); |
376261ae | 1003 | |
4c724c71 | 1004 | put_device(&d->dev); |
1da177e4 LT |
1005 | } |
1006 | ||
dc946bd8 | 1007 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
1da177e4 | 1008 | { |
376261ae | 1009 | BT_DBG("%s orig refcnt %d", d->name, |
2c935bc5 | 1010 | kref_read(&d->dev.kobj.kref)); |
376261ae | 1011 | |
4c724c71 | 1012 | get_device(&d->dev); |
1da177e4 LT |
1013 | return d; |
1014 | } | |
1015 | ||
09fd0de5 GP |
1016 | #define hci_dev_lock(d) mutex_lock(&d->lock) |
1017 | #define hci_dev_unlock(d) mutex_unlock(&d->lock) | |
1da177e4 | 1018 | |
aa2b86d7 | 1019 | #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
3dc07322 | 1020 | #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
aa2b86d7 | 1021 | |
155961e8 DR |
1022 | static inline void *hci_get_drvdata(struct hci_dev *hdev) |
1023 | { | |
1024 | return dev_get_drvdata(&hdev->dev); | |
1025 | } | |
1026 | ||
1027 | static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) | |
1028 | { | |
1029 | dev_set_drvdata(&hdev->dev, data); | |
1030 | } | |
1031 | ||
1da177e4 | 1032 | struct hci_dev *hci_dev_get(int index); |
39385cb5 | 1033 | struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); |
1da177e4 LT |
1034 | |
1035 | struct hci_dev *hci_alloc_dev(void); | |
1036 | void hci_free_dev(struct hci_dev *hdev); | |
1037 | int hci_register_dev(struct hci_dev *hdev); | |
59735631 | 1038 | void hci_unregister_dev(struct hci_dev *hdev); |
1da177e4 LT |
1039 | int hci_suspend_dev(struct hci_dev *hdev); |
1040 | int hci_resume_dev(struct hci_dev *hdev); | |
75e0569f | 1041 | int hci_reset_dev(struct hci_dev *hdev); |
f962fe32 MH |
1042 | int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); |
1043 | int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); | |
1aabbbce NI |
1044 | __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); |
1045 | __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); | |
1da177e4 LT |
1046 | int hci_dev_open(__u16 dev); |
1047 | int hci_dev_close(__u16 dev); | |
6b3cc1db | 1048 | int hci_dev_do_close(struct hci_dev *hdev); |
1da177e4 LT |
1049 | int hci_dev_reset(__u16 dev); |
1050 | int hci_dev_reset_stat(__u16 dev); | |
1051 | int hci_dev_cmd(unsigned int cmd, void __user *arg); | |
1052 | int hci_get_dev_list(void __user *arg); | |
1053 | int hci_get_dev_info(void __user *arg); | |
1054 | int hci_get_conn_list(void __user *arg); | |
1055 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); | |
40be492f | 1056 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
1da177e4 LT |
1057 | int hci_inquiry(void __user *arg); |
1058 | ||
dcc36c16 JH |
1059 | struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, |
1060 | bdaddr_t *bdaddr, u8 type); | |
1061 | int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); | |
1062 | int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); | |
1063 | void hci_bdaddr_list_clear(struct list_head *list); | |
d2ab0ac1 | 1064 | |
15819a70 AG |
1065 | struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, |
1066 | bdaddr_t *addr, u8 addr_type); | |
51d167c0 MH |
1067 | struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, |
1068 | bdaddr_t *addr, u8 addr_type); | |
15819a70 | 1069 | void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); |
55af49a8 | 1070 | void hci_conn_params_clear_disabled(struct hci_dev *hdev); |
15819a70 | 1071 | |
501f8827 JH |
1072 | struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, |
1073 | bdaddr_t *addr, | |
1074 | u8 addr_type); | |
77a77a30 | 1075 | |
35f7498a | 1076 | void hci_uuids_clear(struct hci_dev *hdev); |
2aeb9a1a | 1077 | |
35f7498a | 1078 | void hci_link_keys_clear(struct hci_dev *hdev); |
55ed8ca1 | 1079 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
567fa2aa | 1080 | struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, |
7652ff6a JH |
1081 | bdaddr_t *bdaddr, u8 *val, u8 type, |
1082 | u8 pin_len, bool *persistent); | |
ca9142b8 | 1083 | struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
35d70271 | 1084 | u8 addr_type, u8 type, u8 authenticated, |
fe39c7b2 | 1085 | u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); |
f3a73d97 JH |
1086 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1087 | u8 addr_type, u8 role); | |
e0b2b27e | 1088 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); |
35f7498a | 1089 | void hci_smp_ltks_clear(struct hci_dev *hdev); |
55ed8ca1 JH |
1090 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
1091 | ||
970c4e46 JH |
1092 | struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); |
1093 | struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
1094 | u8 addr_type); | |
ca9142b8 JH |
1095 | struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1096 | u8 addr_type, u8 val[16], bdaddr_t *rpa); | |
a7ec7338 | 1097 | void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); |
970c4e46 JH |
1098 | void hci_smp_irks_clear(struct hci_dev *hdev); |
1099 | ||
55e76b38 JH |
1100 | bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
1101 | ||
35f7498a | 1102 | void hci_remote_oob_data_clear(struct hci_dev *hdev); |
2763eda6 | 1103 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, |
6928a924 | 1104 | bdaddr_t *bdaddr, u8 bdaddr_type); |
0798872e | 1105 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, |
6928a924 | 1106 | u8 bdaddr_type, u8 *hash192, u8 *rand192, |
81328d5c | 1107 | u8 *hash256, u8 *rand256); |
6928a924 JH |
1108 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1109 | u8 bdaddr_type); | |
2763eda6 | 1110 | |
d2609b34 FG |
1111 | void hci_adv_instances_clear(struct hci_dev *hdev); |
1112 | struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); | |
1113 | struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); | |
1114 | int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, | |
1115 | u16 adv_data_len, u8 *adv_data, | |
1116 | u16 scan_rsp_len, u8 *scan_rsp_data, | |
1117 | u16 timeout, u16 duration); | |
1118 | int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); | |
a73c046a | 1119 | void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); |
d2609b34 | 1120 | |
1da177e4 LT |
1121 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
1122 | ||
0ac7e700 | 1123 | void hci_init_sysfs(struct hci_dev *hdev); |
a67e899c | 1124 | void hci_conn_init_sysfs(struct hci_conn *conn); |
b219e3ac MH |
1125 | void hci_conn_add_sysfs(struct hci_conn *conn); |
1126 | void hci_conn_del_sysfs(struct hci_conn *conn); | |
1da177e4 | 1127 | |
6935e0f5 | 1128 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
1da177e4 LT |
1129 | |
1130 | /* ----- LMP capabilities ----- */ | |
cad718ed JH |
1131 | #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) |
1132 | #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) | |
1133 | #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) | |
1134 | #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) | |
1135 | #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) | |
1136 | #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) | |
1137 | #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) | |
1138 | #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) | |
1139 | #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) | |
1140 | #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) | |
1141 | #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) | |
1142 | #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) | |
1143 | #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) | |
1144 | #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) | |
1145 | #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) | |
1146 | #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) | |
1147 | #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) | |
1148 | #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) | |
07a5c61e | 1149 | #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) |
5075b972 JK |
1150 | #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) |
1151 | #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) | |
1152 | #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) | |
1153 | #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) | |
1da177e4 | 1154 | |
eead27da | 1155 | /* ----- Extended LMP capabilities ----- */ |
53b834d2 MH |
1156 | #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) |
1157 | #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) | |
1158 | #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) | |
1159 | #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) | |
d5991585 MH |
1160 | #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) |
1161 | #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) | |
53b834d2 MH |
1162 | |
1163 | /* ----- Host capabilities ----- */ | |
cad718ed | 1164 | #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) |
d5991585 | 1165 | #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) |
cad718ed JH |
1166 | #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) |
1167 | #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) | |
eead27da | 1168 | |
d7a5a11d MH |
1169 | #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ |
1170 | !hci_dev_test_flag(dev, HCI_AUTO_OFF)) | |
1171 | #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ | |
1172 | hci_dev_test_flag(dev, HCI_SC_ENABLED)) | |
432df05e | 1173 | |
45bdd86e JK |
1174 | #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ |
1175 | ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) | |
1176 | ||
1177 | #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ | |
1178 | ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) | |
1179 | ||
1180 | #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ | |
1181 | ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) | |
1182 | ||
a2344b9e JK |
1183 | /* Use ext scanning if set ext scan param and ext scan enable is supported */ |
1184 | #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ | |
1185 | ((dev)->commands[37] & 0x40)) | |
4d94f95d JK |
1186 | /* Use ext create connection if command is supported */ |
1187 | #define use_ext_conn(dev) ((dev)->commands[37] & 0x80) | |
a2344b9e | 1188 | |
6b49bcb4 JK |
1189 | /* Extended advertising support */ |
1190 | #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) | |
1191 | ||
1da177e4 | 1192 | /* ----- HCI protocols ----- */ |
20714bfe FD |
1193 | #define HCI_PROTO_DEFER 0x01 |
1194 | ||
5a9d0a3f | 1195 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
20714bfe | 1196 | __u8 type, __u8 *flags) |
1da177e4 | 1197 | { |
686ebf28 UF |
1198 | switch (type) { |
1199 | case ACL_LINK: | |
1200 | return l2cap_connect_ind(hdev, bdaddr); | |
1da177e4 | 1201 | |
686ebf28 UF |
1202 | case SCO_LINK: |
1203 | case ESCO_LINK: | |
20714bfe | 1204 | return sco_connect_ind(hdev, bdaddr, flags); |
1da177e4 | 1205 | |
686ebf28 UF |
1206 | default: |
1207 | BT_ERR("unknown link type %d", type); | |
1208 | return -EINVAL; | |
1209 | } | |
1da177e4 LT |
1210 | } |
1211 | ||
2950f21a | 1212 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
1da177e4 | 1213 | { |
686ebf28 UF |
1214 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
1215 | return HCI_ERROR_REMOTE_USER_TERM; | |
1da177e4 | 1216 | |
686ebf28 | 1217 | return l2cap_disconn_ind(conn); |
2950f21a MH |
1218 | } |
1219 | ||
1da177e4 LT |
1220 | /* ----- HCI callbacks ----- */ |
1221 | struct hci_cb { | |
1222 | struct list_head list; | |
1223 | ||
1224 | char *name; | |
1225 | ||
539c496d | 1226 | void (*connect_cfm) (struct hci_conn *conn, __u8 status); |
3a6d576b | 1227 | void (*disconn_cfm) (struct hci_conn *conn, __u8 status); |
5a9d0a3f WR |
1228 | void (*security_cfm) (struct hci_conn *conn, __u8 status, |
1229 | __u8 encrypt); | |
1da177e4 LT |
1230 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
1231 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); | |
1232 | }; | |
1233 | ||
539c496d JH |
1234 | static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) |
1235 | { | |
1236 | struct hci_cb *cb; | |
1237 | ||
1238 | mutex_lock(&hci_cb_list_lock); | |
1239 | list_for_each_entry(cb, &hci_cb_list, list) { | |
1240 | if (cb->connect_cfm) | |
1241 | cb->connect_cfm(conn, status); | |
1242 | } | |
1243 | mutex_unlock(&hci_cb_list_lock); | |
1244 | ||
1245 | if (conn->connect_cfm_cb) | |
1246 | conn->connect_cfm_cb(conn, status); | |
1247 | } | |
1248 | ||
3a6d576b JH |
1249 | static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) |
1250 | { | |
1251 | struct hci_cb *cb; | |
1252 | ||
1253 | mutex_lock(&hci_cb_list_lock); | |
1254 | list_for_each_entry(cb, &hci_cb_list, list) { | |
1255 | if (cb->disconn_cfm) | |
1256 | cb->disconn_cfm(conn, reason); | |
1257 | } | |
1258 | mutex_unlock(&hci_cb_list_lock); | |
1259 | ||
1260 | if (conn->disconn_cfm_cb) | |
1261 | conn->disconn_cfm_cb(conn, reason); | |
1262 | } | |
1263 | ||
1da177e4 LT |
1264 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) |
1265 | { | |
711584ea | 1266 | struct hci_cb *cb; |
8c1b2355 | 1267 | __u8 encrypt; |
1da177e4 | 1268 | |
51a8efd7 | 1269 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
1270 | return; |
1271 | ||
4dae2798 | 1272 | encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; |
8c1b2355 | 1273 | |
fba7ecf0 | 1274 | mutex_lock(&hci_cb_list_lock); |
711584ea | 1275 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
1276 | if (cb->security_cfm) |
1277 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 1278 | } |
fba7ecf0 | 1279 | mutex_unlock(&hci_cb_list_lock); |
354fe804 JH |
1280 | |
1281 | if (conn->security_cfm_cb) | |
1282 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
1283 | } |
1284 | ||
5a9d0a3f WR |
1285 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, |
1286 | __u8 encrypt) | |
1da177e4 | 1287 | { |
711584ea | 1288 | struct hci_cb *cb; |
1da177e4 | 1289 | |
435fef20 MH |
1290 | if (conn->sec_level == BT_SECURITY_SDP) |
1291 | conn->sec_level = BT_SECURITY_LOW; | |
1292 | ||
88167aed VCG |
1293 | if (conn->pending_sec_level > conn->sec_level) |
1294 | conn->sec_level = conn->pending_sec_level; | |
1295 | ||
fba7ecf0 | 1296 | mutex_lock(&hci_cb_list_lock); |
711584ea | 1297 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
1298 | if (cb->security_cfm) |
1299 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 1300 | } |
fba7ecf0 | 1301 | mutex_unlock(&hci_cb_list_lock); |
354fe804 JH |
1302 | |
1303 | if (conn->security_cfm_cb) | |
1304 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
1305 | } |
1306 | ||
1307 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) | |
1308 | { | |
711584ea | 1309 | struct hci_cb *cb; |
1da177e4 | 1310 | |
fba7ecf0 | 1311 | mutex_lock(&hci_cb_list_lock); |
711584ea | 1312 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
1313 | if (cb->key_change_cfm) |
1314 | cb->key_change_cfm(conn, status); | |
1315 | } | |
fba7ecf0 | 1316 | mutex_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1317 | } |
1318 | ||
5a9d0a3f WR |
1319 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
1320 | __u8 role) | |
1da177e4 | 1321 | { |
711584ea | 1322 | struct hci_cb *cb; |
1da177e4 | 1323 | |
fba7ecf0 | 1324 | mutex_lock(&hci_cb_list_lock); |
711584ea | 1325 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
1326 | if (cb->role_switch_cfm) |
1327 | cb->role_switch_cfm(conn, status, role); | |
1328 | } | |
fba7ecf0 | 1329 | mutex_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1330 | } |
1331 | ||
0d3b7f64 JH |
1332 | static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type, |
1333 | size_t *data_len) | |
6759a675 | 1334 | { |
84d9d071 | 1335 | size_t parsed = 0; |
6759a675 | 1336 | |
0d3b7f64 JH |
1337 | if (eir_len < 2) |
1338 | return NULL; | |
6c0c331e | 1339 | |
0d3b7f64 JH |
1340 | while (parsed < eir_len - 1) { |
1341 | u8 field_len = eir[0]; | |
6759a675 JH |
1342 | |
1343 | if (field_len == 0) | |
1344 | break; | |
1345 | ||
1346 | parsed += field_len + 1; | |
1347 | ||
0d3b7f64 | 1348 | if (parsed > eir_len) |
6759a675 JH |
1349 | break; |
1350 | ||
0d3b7f64 JH |
1351 | if (eir[1] != type) { |
1352 | eir += field_len + 1; | |
1353 | continue; | |
1354 | } | |
1355 | ||
1356 | /* Zero length data */ | |
1357 | if (field_len == 1) | |
1358 | return NULL; | |
6759a675 | 1359 | |
0d3b7f64 JH |
1360 | if (data_len) |
1361 | *data_len = field_len - 1; | |
1362 | ||
1363 | return &eir[2]; | |
6759a675 JH |
1364 | } |
1365 | ||
0d3b7f64 | 1366 | return NULL; |
6759a675 JH |
1367 | } |
1368 | ||
301cb2d8 JH |
1369 | static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) |
1370 | { | |
dbbfa2ab | 1371 | if (addr_type != ADDR_LE_DEV_RANDOM) |
301cb2d8 JH |
1372 | return false; |
1373 | ||
1374 | if ((bdaddr->b[5] & 0xc0) == 0x40) | |
1375 | return true; | |
1376 | ||
1377 | return false; | |
1378 | } | |
1379 | ||
c46245b3 JH |
1380 | static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) |
1381 | { | |
1382 | if (addr_type == ADDR_LE_DEV_PUBLIC) | |
1383 | return true; | |
1384 | ||
1385 | /* Check for Random Static address type */ | |
1386 | if ((addr->b[5] & 0xc0) == 0xc0) | |
1387 | return true; | |
1388 | ||
1389 | return false; | |
1390 | } | |
1391 | ||
2426f3a5 JH |
1392 | static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, |
1393 | bdaddr_t *bdaddr, u8 addr_type) | |
1394 | { | |
1395 | if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) | |
1396 | return NULL; | |
1397 | ||
1398 | return hci_find_irk_by_rpa(hdev, bdaddr); | |
1399 | } | |
1400 | ||
d4905f24 AG |
1401 | static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, |
1402 | u16 to_multiplier) | |
1403 | { | |
1404 | u16 max_latency; | |
1405 | ||
1406 | if (min > max || min < 6 || max > 3200) | |
1407 | return -EINVAL; | |
1408 | ||
1409 | if (to_multiplier < 10 || to_multiplier > 3200) | |
1410 | return -EINVAL; | |
1411 | ||
1412 | if (max >= to_multiplier * 8) | |
1413 | return -EINVAL; | |
1414 | ||
8757825b | 1415 | max_latency = (to_multiplier * 4 / max) - 1; |
d4905f24 AG |
1416 | if (latency > 499 || latency > max_latency) |
1417 | return -EINVAL; | |
1418 | ||
1419 | return 0; | |
1420 | } | |
1421 | ||
1da177e4 LT |
1422 | int hci_register_cb(struct hci_cb *hcb); |
1423 | int hci_unregister_cb(struct hci_cb *hcb); | |
1424 | ||
75e84b7c | 1425 | struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1426 | const void *param, u32 timeout); |
7b1abbbe | 1427 | struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1428 | const void *param, u8 event, u32 timeout); |
d6ee6ad7 LP |
1429 | int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, |
1430 | const void *param); | |
75e84b7c | 1431 | |
07dc93dd JH |
1432 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, |
1433 | const void *param); | |
73d80deb | 1434 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
0d861d8b | 1435 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
1da177e4 | 1436 | |
a9de9248 | 1437 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
1da177e4 | 1438 | |
fbef168f LP |
1439 | struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
1440 | const void *param, u32 timeout); | |
1441 | ||
1da177e4 | 1442 | /* ----- HCI Sockets ----- */ |
470fe1b5 | 1443 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
7129069e | 1444 | void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, |
c08b1a1d | 1445 | int flag, struct sock *skip_sk); |
cd82e61c | 1446 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
38ceaa00 MH |
1447 | void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, |
1448 | void *data, u16 data_len, ktime_t tstamp, | |
1449 | int flag, struct sock *skip_sk); | |
1da177e4 | 1450 | |
040030ef MH |
1451 | void hci_sock_dev_event(struct hci_dev *hdev, int event); |
1452 | ||
a958452a MH |
1453 | #define HCI_MGMT_VAR_LEN BIT(0) |
1454 | #define HCI_MGMT_NO_HDEV BIT(1) | |
1455 | #define HCI_MGMT_UNTRUSTED BIT(2) | |
1456 | #define HCI_MGMT_UNCONFIGURED BIT(3) | |
b9a245fb | 1457 | |
801c1e8d JH |
1458 | struct hci_mgmt_handler { |
1459 | int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, | |
1460 | u16 data_len); | |
801c1e8d | 1461 | size_t data_len; |
b9a245fb | 1462 | unsigned long flags; |
801c1e8d JH |
1463 | }; |
1464 | ||
1465 | struct hci_mgmt_chan { | |
1466 | struct list_head list; | |
1467 | unsigned short channel; | |
1468 | size_t handler_count; | |
1469 | const struct hci_mgmt_handler *handlers; | |
88b94ce9 | 1470 | void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); |
801c1e8d JH |
1471 | }; |
1472 | ||
1473 | int hci_mgmt_chan_register(struct hci_mgmt_chan *c); | |
1474 | void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); | |
1475 | ||
0381101f | 1476 | /* Management interface */ |
591f47f3 AG |
1477 | #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
1478 | #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ | |
1479 | BIT(BDADDR_LE_RANDOM)) | |
1480 | #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ | |
1481 | BIT(BDADDR_LE_PUBLIC) | \ | |
1482 | BIT(BDADDR_LE_RANDOM)) | |
f39799f5 | 1483 | |
0d8cc935 AG |
1484 | /* These LE scan and inquiry parameters were chosen according to LE General |
1485 | * Discovery Procedure specification. | |
1486 | */ | |
1487 | #define DISCOV_LE_SCAN_WIN 0x12 | |
1488 | #define DISCOV_LE_SCAN_INT 0x12 | |
3d5a76f0 | 1489 | #define DISCOV_LE_TIMEOUT 10240 /* msec */ |
ae55f598 | 1490 | #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ |
0d8cc935 AG |
1491 | #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 |
1492 | #define DISCOV_BREDR_INQUIRY_LEN 0x08 | |
4b0e0ced | 1493 | #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ |
0d8cc935 | 1494 | |
03c979c4 | 1495 | void mgmt_fill_version_info(void *ver); |
91a668b0 | 1496 | int mgmt_new_settings(struct hci_dev *hdev); |
bf6b56db MH |
1497 | void mgmt_index_added(struct hci_dev *hdev); |
1498 | void mgmt_index_removed(struct hci_dev *hdev); | |
3eec705e | 1499 | void mgmt_set_powered_failed(struct hci_dev *hdev, int err); |
2ff13894 JH |
1500 | void mgmt_power_on(struct hci_dev *hdev, int err); |
1501 | void __mgmt_power_off(struct hci_dev *hdev); | |
dc4a5ee2 MH |
1502 | void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, |
1503 | bool persistent); | |
48ec92fa AA |
1504 | void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, |
1505 | u32 flags, u8 *name, u8 name_len); | |
9b80ec5e | 1506 | void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
12d4a3b2 JH |
1507 | u8 link_type, u8 addr_type, u8 reason, |
1508 | bool mgmt_connected); | |
7892924c MH |
1509 | void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1510 | u8 link_type, u8 addr_type, u8 status); | |
445608d0 MH |
1511 | void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1512 | u8 addr_type, u8 status); | |
ce0e4a0d | 1513 | void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
e669cf80 MH |
1514 | void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1515 | u8 status); | |
3eb38528 MH |
1516 | void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1517 | u8 status); | |
744cf19e | 1518 | int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
39adbffe | 1519 | u8 link_type, u8 addr_type, u32 value, |
04124681 | 1520 | u8 confirm_hint); |
744cf19e | 1521 | int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1522 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1523 | int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1524 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1525 | int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1526 | u8 link_type, u8 addr_type); |
604086b7 | 1527 | int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1528 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1529 | int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1530 | u8 link_type, u8 addr_type, u8 status); |
92a25256 JH |
1531 | int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1532 | u8 link_type, u8 addr_type, u32 passkey, | |
1533 | u8 entered); | |
e1e930f5 | 1534 | void mgmt_auth_failed(struct hci_conn *conn, u8 status); |
464996ae | 1535 | void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
3e248560 | 1536 | void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
4e1b0245 MH |
1537 | void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
1538 | u8 status); | |
7667da34 | 1539 | void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
e68f072b | 1540 | void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); |
2154d3f4 | 1541 | void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); |
901801b9 | 1542 | void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
af58925c MH |
1543 | u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, |
1544 | u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); | |
9cf12aee MH |
1545 | void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1546 | u8 addr_type, s8 rssi, u8 *name, u8 name_len); | |
2f1e063b | 1547 | void mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
84c61d92 | 1548 | bool mgmt_powering_down(struct hci_dev *hdev); |
53ac6ab6 | 1549 | void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); |
cad20c27 | 1550 | void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); |
53ac6ab6 MH |
1551 | void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, |
1552 | bool persistent); | |
ffb5a827 | 1553 | void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, |
f4869e2a JH |
1554 | u8 bdaddr_type, u8 store_hint, u16 min_interval, |
1555 | u16 max_interval, u16 latency, u16 timeout); | |
f4a407be | 1556 | void mgmt_smp_complete(struct hci_conn *conn, bool complete); |
f2252570 | 1557 | bool mgmt_get_connectable(struct hci_dev *hdev); |
53c0ba74 | 1558 | void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status); |
aed1a885 | 1559 | void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status); |
f2252570 JH |
1560 | u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); |
1561 | void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, | |
1562 | u8 instance); | |
1563 | void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, | |
1564 | u8 instance); | |
b7c23df8 | 1565 | int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); |
346af67b | 1566 | |
7d6ca693 JH |
1567 | u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, |
1568 | u16 to_multiplier); | |
fe39c7b2 | 1569 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, |
8b76ce34 | 1570 | __u8 ltk[16], __u8 key_size); |
2519a1fc | 1571 | |
a1f4c318 JH |
1572 | void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1573 | u8 *bdaddr_type); | |
ebd3a747 | 1574 | |
5d4d62f6 FD |
1575 | #define SCO_AIRMODE_MASK 0x0003 |
1576 | #define SCO_AIRMODE_CVSD 0x0000 | |
1577 | #define SCO_AIRMODE_TRANSP 0x0003 | |
1578 | ||
1da177e4 | 1579 | #endif /* __HCI_CORE_H */ |