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Commit | Line | Data |
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04fafe4e | 1 | /* |
1da177e4 | 2 | BlueZ - Bluetooth protocol stack for Linux |
2d0a0346 | 3 | Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. |
1da177e4 LT |
4 | |
5 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License version 2 as | |
9 | published by the Free Software Foundation; | |
10 | ||
11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS | |
12 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
13 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. | |
14 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY | |
04fafe4e RS |
15 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
16 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
17 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
1da177e4 LT |
18 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
19 | ||
04fafe4e RS |
20 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
21 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS | |
1da177e4 LT |
22 | SOFTWARE IS DISCLAIMED. |
23 | */ | |
24 | ||
25 | #ifndef __HCI_CORE_H | |
26 | #define __HCI_CORE_H | |
27 | ||
1da177e4 LT |
28 | #include <net/bluetooth/hci.h> |
29 | ||
5e59b791 LAD |
30 | /* HCI priority */ |
31 | #define HCI_PRIO_MAX 7 | |
32 | ||
1da177e4 | 33 | /* HCI Core structures */ |
1da177e4 LT |
34 | struct inquiry_data { |
35 | bdaddr_t bdaddr; | |
36 | __u8 pscan_rep_mode; | |
37 | __u8 pscan_period_mode; | |
38 | __u8 pscan_mode; | |
39 | __u8 dev_class[3]; | |
1ebb9252 | 40 | __le16 clock_offset; |
1da177e4 | 41 | __s8 rssi; |
41a96212 | 42 | __u8 ssp_mode; |
1da177e4 LT |
43 | }; |
44 | ||
45 | struct inquiry_entry { | |
561aafbc JH |
46 | struct list_head all; /* inq_cache.all */ |
47 | struct list_head list; /* unknown or resolve */ | |
48 | enum { | |
49 | NAME_NOT_KNOWN, | |
50 | NAME_NEEDED, | |
51 | NAME_PENDING, | |
52 | NAME_KNOWN, | |
53 | } name_state; | |
1da177e4 LT |
54 | __u32 timestamp; |
55 | struct inquiry_data data; | |
56 | }; | |
57 | ||
30883512 | 58 | struct discovery_state { |
f64b993f | 59 | int type; |
ff9ef578 JH |
60 | enum { |
61 | DISCOVERY_STOPPED, | |
62 | DISCOVERY_STARTING, | |
343f935b | 63 | DISCOVERY_FINDING, |
30dc78e1 | 64 | DISCOVERY_RESOLVING, |
ff9ef578 JH |
65 | DISCOVERY_STOPPING, |
66 | } state; | |
c3c7ea65 | 67 | struct list_head all; /* All devices found during inquiry */ |
f64b993f GP |
68 | struct list_head unknown; /* Name state not known */ |
69 | struct list_head resolve; /* Name needs to be resolved */ | |
70 | __u32 timestamp; | |
1da177e4 LT |
71 | }; |
72 | ||
73 | struct hci_conn_hash { | |
74 | struct list_head list; | |
1da177e4 | 75 | unsigned int acl_num; |
bd1eb66b | 76 | unsigned int amp_num; |
1da177e4 | 77 | unsigned int sco_num; |
fcd89c09 | 78 | unsigned int le_num; |
1da177e4 LT |
79 | }; |
80 | ||
f0358568 JH |
81 | struct bdaddr_list { |
82 | struct list_head list; | |
83 | bdaddr_t bdaddr; | |
84 | }; | |
2aeb9a1a JH |
85 | |
86 | struct bt_uuid { | |
87 | struct list_head list; | |
88 | u8 uuid[16]; | |
83be8eca | 89 | u8 size; |
1aff6f09 | 90 | u8 svc_hint; |
2aeb9a1a JH |
91 | }; |
92 | ||
b899efaf VCG |
93 | struct smp_ltk { |
94 | struct list_head list; | |
95 | bdaddr_t bdaddr; | |
96 | u8 bdaddr_type; | |
97 | u8 authenticated; | |
98 | u8 type; | |
99 | u8 enc_size; | |
100 | __le16 ediv; | |
101 | u8 rand[8]; | |
102 | u8 val[16]; | |
103 | } __packed; | |
104 | ||
55ed8ca1 JH |
105 | struct link_key { |
106 | struct list_head list; | |
107 | bdaddr_t bdaddr; | |
108 | u8 type; | |
9b3b4460 | 109 | u8 val[HCI_LINK_KEY_SIZE]; |
55ed8ca1 JH |
110 | u8 pin_len; |
111 | }; | |
112 | ||
2763eda6 SJ |
113 | struct oob_data { |
114 | struct list_head list; | |
115 | bdaddr_t bdaddr; | |
116 | u8 hash[16]; | |
117 | u8 randomizer[16]; | |
118 | }; | |
119 | ||
7ba8b4be AG |
120 | struct le_scan_params { |
121 | u8 type; | |
122 | u16 interval; | |
123 | u16 window; | |
28b75a89 | 124 | int timeout; |
7ba8b4be AG |
125 | }; |
126 | ||
490c5bab JH |
127 | #define HCI_MAX_SHORT_NAME_LENGTH 10 |
128 | ||
903e4541 AE |
129 | struct amp_assoc { |
130 | __u16 len; | |
131 | __u16 offset; | |
93c284ee AE |
132 | __u16 rem_len; |
133 | __u16 len_so_far; | |
903e4541 AE |
134 | __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; |
135 | }; | |
136 | ||
cd4c5391 | 137 | #define NUM_REASSEMBLY 4 |
1da177e4 LT |
138 | struct hci_dev { |
139 | struct list_head list; | |
09fd0de5 | 140 | struct mutex lock; |
1da177e4 LT |
141 | |
142 | char name[8]; | |
143 | unsigned long flags; | |
144 | __u16 id; | |
c13854ce | 145 | __u8 bus; |
943da25d | 146 | __u8 dev_type; |
1da177e4 | 147 | bdaddr_t bdaddr; |
1f6c6378 | 148 | __u8 dev_name[HCI_MAX_NAME_LENGTH]; |
490c5bab | 149 | __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; |
80a1e1db | 150 | __u8 eir[HCI_MAX_EIR_LENGTH]; |
a9de9248 | 151 | __u8 dev_class[3]; |
1aff6f09 JH |
152 | __u8 major_class; |
153 | __u8 minor_class; | |
1da177e4 | 154 | __u8 features[8]; |
59e29406 | 155 | __u8 host_features[8]; |
60e77321 | 156 | __u8 le_features[8]; |
cf1d081f | 157 | __u8 le_white_list_size; |
9b008c04 | 158 | __u8 le_states[8]; |
a9de9248 | 159 | __u8 commands[64]; |
1143e5a6 MH |
160 | __u8 hci_ver; |
161 | __u16 hci_rev; | |
d5859e22 | 162 | __u8 lmp_ver; |
1143e5a6 | 163 | __u16 manufacturer; |
7d69230c | 164 | __u16 lmp_subver; |
1da177e4 | 165 | __u16 voice_setting; |
17fa4b9d | 166 | __u8 io_capability; |
91c4e9b1 | 167 | __s8 inq_tx_power; |
f332ec66 JH |
168 | __u16 page_scan_interval; |
169 | __u16 page_scan_window; | |
170 | __u8 page_scan_type; | |
171 | ||
2b9be137 MH |
172 | __u16 devid_source; |
173 | __u16 devid_vendor; | |
174 | __u16 devid_product; | |
175 | __u16 devid_version; | |
1da177e4 LT |
176 | |
177 | __u16 pkt_type; | |
5b7f9909 | 178 | __u16 esco_type; |
1da177e4 LT |
179 | __u16 link_policy; |
180 | __u16 link_mode; | |
181 | ||
04837f64 MH |
182 | __u32 idle_timeout; |
183 | __u16 sniff_min_interval; | |
184 | __u16 sniff_max_interval; | |
185 | ||
928abaa7 AE |
186 | __u8 amp_status; |
187 | __u32 amp_total_bw; | |
188 | __u32 amp_max_bw; | |
189 | __u32 amp_min_latency; | |
190 | __u32 amp_max_pdu; | |
191 | __u8 amp_type; | |
192 | __u16 amp_pal_cap; | |
193 | __u16 amp_assoc_size; | |
194 | __u32 amp_max_flush_to; | |
195 | __u32 amp_be_flush_to; | |
196 | ||
903e4541 AE |
197 | struct amp_assoc loc_assoc; |
198 | ||
1e89cffb AE |
199 | __u8 flow_ctl_mode; |
200 | ||
9f61656a JH |
201 | unsigned int auto_accept_delay; |
202 | ||
1da177e4 LT |
203 | unsigned long quirks; |
204 | ||
205 | atomic_t cmd_cnt; | |
206 | unsigned int acl_cnt; | |
207 | unsigned int sco_cnt; | |
6ed58ec5 | 208 | unsigned int le_cnt; |
1da177e4 LT |
209 | |
210 | unsigned int acl_mtu; | |
211 | unsigned int sco_mtu; | |
6ed58ec5 | 212 | unsigned int le_mtu; |
1da177e4 LT |
213 | unsigned int acl_pkts; |
214 | unsigned int sco_pkts; | |
6ed58ec5 | 215 | unsigned int le_pkts; |
1da177e4 | 216 | |
350ee4cf AE |
217 | __u16 block_len; |
218 | __u16 block_mtu; | |
219 | __u16 num_blocks; | |
220 | __u16 block_cnt; | |
221 | ||
1da177e4 LT |
222 | unsigned long acl_last_tx; |
223 | unsigned long sco_last_tx; | |
6ed58ec5 | 224 | unsigned long le_last_tx; |
1da177e4 | 225 | |
f48fd9c8 | 226 | struct workqueue_struct *workqueue; |
6ead1bbc | 227 | struct workqueue_struct *req_workqueue; |
f48fd9c8 | 228 | |
ab81cbf9 | 229 | struct work_struct power_on; |
3243553f | 230 | struct delayed_work power_off; |
ab81cbf9 | 231 | |
16ab91ab JH |
232 | __u16 discov_timeout; |
233 | struct delayed_work discov_off; | |
234 | ||
7d78525d JH |
235 | struct delayed_work service_cache; |
236 | ||
6bd32326 | 237 | struct timer_list cmd_timer; |
b78752cc MH |
238 | |
239 | struct work_struct rx_work; | |
c347b765 | 240 | struct work_struct cmd_work; |
3eff45ea | 241 | struct work_struct tx_work; |
1da177e4 LT |
242 | |
243 | struct sk_buff_head rx_q; | |
244 | struct sk_buff_head raw_q; | |
245 | struct sk_buff_head cmd_q; | |
246 | ||
b6ddb638 | 247 | struct sk_buff *recv_evt; |
1da177e4 | 248 | struct sk_buff *sent_cmd; |
cd4c5391 | 249 | struct sk_buff *reassembly[NUM_REASSEMBLY]; |
1da177e4 | 250 | |
a6a67efd | 251 | struct mutex req_lock; |
1da177e4 LT |
252 | wait_queue_head_t req_wait_q; |
253 | __u32 req_status; | |
254 | __u32 req_result; | |
a5040efa | 255 | |
2e58ef3e JH |
256 | struct list_head mgmt_pending; |
257 | ||
30883512 | 258 | struct discovery_state discovery; |
1da177e4 | 259 | struct hci_conn_hash conn_hash; |
ea4bd8ba | 260 | struct list_head blacklist; |
1da177e4 | 261 | |
2aeb9a1a JH |
262 | struct list_head uuids; |
263 | ||
55ed8ca1 JH |
264 | struct list_head link_keys; |
265 | ||
b899efaf VCG |
266 | struct list_head long_term_keys; |
267 | ||
2763eda6 SJ |
268 | struct list_head remote_oob_data; |
269 | ||
1da177e4 LT |
270 | struct hci_dev_stats stat; |
271 | ||
272 | struct sk_buff_head driver_init; | |
273 | ||
70f23020 | 274 | atomic_t promisc; |
1da177e4 | 275 | |
ca325f69 MH |
276 | struct dentry *debugfs; |
277 | ||
a91f2e39 | 278 | struct device dev; |
1da177e4 | 279 | |
611b30f7 MH |
280 | struct rfkill *rfkill; |
281 | ||
d23264a8 AG |
282 | unsigned long dev_flags; |
283 | ||
7ba8b4be AG |
284 | struct delayed_work le_scan_disable; |
285 | ||
28b75a89 AG |
286 | struct work_struct le_scan; |
287 | struct le_scan_params le_scan_params; | |
288 | ||
8fa19098 | 289 | __s8 adv_tx_power; |
3f0f524b JH |
290 | __u8 adv_data[HCI_MAX_AD_LENGTH]; |
291 | __u8 adv_data_len; | |
8fa19098 | 292 | |
1da177e4 LT |
293 | int (*open)(struct hci_dev *hdev); |
294 | int (*close)(struct hci_dev *hdev); | |
295 | int (*flush)(struct hci_dev *hdev); | |
296 | int (*send)(struct sk_buff *skb); | |
1da177e4 LT |
297 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
298 | int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); | |
299 | }; | |
300 | ||
53502d69 AE |
301 | #define HCI_PHY_HANDLE(handle) (handle & 0xff) |
302 | ||
1da177e4 LT |
303 | struct hci_conn { |
304 | struct list_head list; | |
305 | ||
adc4266d | 306 | atomic_t refcnt; |
adc4266d SJ |
307 | |
308 | bdaddr_t dst; | |
5a9d0a3f | 309 | __u8 dst_type; |
adc4266d SJ |
310 | __u16 handle; |
311 | __u16 state; | |
312 | __u8 mode; | |
313 | __u8 type; | |
a0c808b3 | 314 | bool out; |
adc4266d SJ |
315 | __u8 attempt; |
316 | __u8 dev_class[3]; | |
317 | __u8 features[8]; | |
adc4266d SJ |
318 | __u16 interval; |
319 | __u16 pkt_type; | |
320 | __u16 link_policy; | |
321 | __u32 link_mode; | |
13d39315 | 322 | __u8 key_type; |
adc4266d SJ |
323 | __u8 auth_type; |
324 | __u8 sec_level; | |
325 | __u8 pending_sec_level; | |
326 | __u8 pin_length; | |
726b4ffc | 327 | __u8 enc_key_size; |
adc4266d | 328 | __u8 io_capability; |
92a25256 JH |
329 | __u32 passkey_notify; |
330 | __u8 passkey_entered; | |
adc4266d | 331 | __u16 disc_timeout; |
51a8efd7 | 332 | unsigned long flags; |
04837f64 | 333 | |
03b555e1 | 334 | __u8 remote_cap; |
03b555e1 | 335 | __u8 remote_auth; |
3161ae1c | 336 | __u8 remote_id; |
6ec5bcad | 337 | bool flush_key; |
03b555e1 | 338 | |
adc4266d | 339 | unsigned int sent; |
04837f64 | 340 | |
1da177e4 | 341 | struct sk_buff_head data_q; |
2c33c06a | 342 | struct list_head chan_list; |
1da177e4 | 343 | |
19c40e3b | 344 | struct delayed_work disc_work; |
04837f64 | 345 | struct timer_list idle_timer; |
9f61656a | 346 | struct timer_list auto_accept_timer; |
04837f64 | 347 | |
b219e3ac | 348 | struct device dev; |
9eba32b8 | 349 | atomic_t devref; |
b219e3ac | 350 | |
1da177e4 LT |
351 | struct hci_dev *hdev; |
352 | void *l2cap_data; | |
353 | void *sco_data; | |
2b64d153 | 354 | void *smp_conn; |
9740e49d | 355 | struct amp_mgr *amp_mgr; |
1da177e4 LT |
356 | |
357 | struct hci_conn *link; | |
e9a416b5 JH |
358 | |
359 | void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); | |
360 | void (*security_cfm_cb) (struct hci_conn *conn, u8 status); | |
361 | void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); | |
1da177e4 LT |
362 | }; |
363 | ||
73d80deb LAD |
364 | struct hci_chan { |
365 | struct list_head list; | |
42c4e53e | 366 | __u16 handle; |
73d80deb LAD |
367 | struct hci_conn *conn; |
368 | struct sk_buff_head data_q; | |
369 | unsigned int sent; | |
168df8e5 | 370 | __u8 state; |
73d80deb LAD |
371 | }; |
372 | ||
1da177e4 LT |
373 | extern struct list_head hci_dev_list; |
374 | extern struct list_head hci_cb_list; | |
375 | extern rwlock_t hci_dev_list_lock; | |
376 | extern rwlock_t hci_cb_list_lock; | |
377 | ||
686ebf28 UF |
378 | /* ----- HCI interface to upper protocols ----- */ |
379 | extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
9e664631 | 380 | extern void l2cap_connect_cfm(struct hci_conn *hcon, u8 status); |
686ebf28 | 381 | extern int l2cap_disconn_ind(struct hci_conn *hcon); |
9e664631 | 382 | extern void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); |
686ebf28 | 383 | extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); |
c3c7ea65 GP |
384 | extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, |
385 | u16 flags); | |
686ebf28 | 386 | |
20714bfe | 387 | extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); |
9e664631 AE |
388 | extern void sco_connect_cfm(struct hci_conn *hcon, __u8 status); |
389 | extern void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); | |
686ebf28 UF |
390 | extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); |
391 | ||
1da177e4 | 392 | /* ----- Inquiry cache ----- */ |
70f23020 AE |
393 | #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ |
394 | #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ | |
1da177e4 | 395 | |
30883512 | 396 | static inline void discovery_init(struct hci_dev *hdev) |
1da177e4 | 397 | { |
ff9ef578 | 398 | hdev->discovery.state = DISCOVERY_STOPPED; |
30883512 JH |
399 | INIT_LIST_HEAD(&hdev->discovery.all); |
400 | INIT_LIST_HEAD(&hdev->discovery.unknown); | |
401 | INIT_LIST_HEAD(&hdev->discovery.resolve); | |
1da177e4 LT |
402 | } |
403 | ||
30dc78e1 JH |
404 | bool hci_discovery_active(struct hci_dev *hdev); |
405 | ||
ff9ef578 JH |
406 | void hci_discovery_set_state(struct hci_dev *hdev, int state); |
407 | ||
1da177e4 LT |
408 | static inline int inquiry_cache_empty(struct hci_dev *hdev) |
409 | { | |
30883512 | 410 | return list_empty(&hdev->discovery.all); |
1da177e4 LT |
411 | } |
412 | ||
413 | static inline long inquiry_cache_age(struct hci_dev *hdev) | |
414 | { | |
30883512 | 415 | struct discovery_state *c = &hdev->discovery; |
1da177e4 LT |
416 | return jiffies - c->timestamp; |
417 | } | |
418 | ||
419 | static inline long inquiry_entry_age(struct inquiry_entry *e) | |
420 | { | |
421 | return jiffies - e->timestamp; | |
422 | } | |
423 | ||
5a9d0a3f | 424 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
04124681 | 425 | bdaddr_t *bdaddr); |
561aafbc | 426 | struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
04124681 | 427 | bdaddr_t *bdaddr); |
30dc78e1 | 428 | struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
04124681 GP |
429 | bdaddr_t *bdaddr, |
430 | int state); | |
a3d4e20a | 431 | void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
04124681 | 432 | struct inquiry_entry *ie); |
3175405b | 433 | bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
04124681 | 434 | bool name_known, bool *ssp); |
1da177e4 LT |
435 | |
436 | /* ----- HCI Connections ----- */ | |
437 | enum { | |
438 | HCI_CONN_AUTH_PEND, | |
19f8def0 | 439 | HCI_CONN_REAUTH_PEND, |
1da177e4 | 440 | HCI_CONN_ENCRYPT_PEND, |
04837f64 MH |
441 | HCI_CONN_RSWITCH_PEND, |
442 | HCI_CONN_MODE_CHANGE_PEND, | |
e73439d8 | 443 | HCI_CONN_SCO_SETUP_PEND, |
d26a2345 | 444 | HCI_CONN_LE_SMP_PEND, |
b644ba33 | 445 | HCI_CONN_MGMT_CONNECTED, |
58a681ef JH |
446 | HCI_CONN_SSP_ENABLED, |
447 | HCI_CONN_POWER_SAVE, | |
448 | HCI_CONN_REMOTE_OOB, | |
1da177e4 LT |
449 | }; |
450 | ||
aa64a8b5 JH |
451 | static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
452 | { | |
453 | struct hci_dev *hdev = conn->hdev; | |
c3c7ea65 GP |
454 | return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && |
455 | test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); | |
aa64a8b5 JH |
456 | } |
457 | ||
1da177e4 LT |
458 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
459 | { | |
460 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 | 461 | list_add_rcu(&c->list, &h->list); |
fcd89c09 VT |
462 | switch (c->type) { |
463 | case ACL_LINK: | |
1da177e4 | 464 | h->acl_num++; |
fcd89c09 | 465 | break; |
bd1eb66b AE |
466 | case AMP_LINK: |
467 | h->amp_num++; | |
468 | break; | |
fcd89c09 VT |
469 | case LE_LINK: |
470 | h->le_num++; | |
471 | break; | |
472 | case SCO_LINK: | |
473 | case ESCO_LINK: | |
1da177e4 | 474 | h->sco_num++; |
fcd89c09 VT |
475 | break; |
476 | } | |
1da177e4 LT |
477 | } |
478 | ||
479 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) | |
480 | { | |
481 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 GP |
482 | |
483 | list_del_rcu(&c->list); | |
484 | synchronize_rcu(); | |
485 | ||
fcd89c09 VT |
486 | switch (c->type) { |
487 | case ACL_LINK: | |
1da177e4 | 488 | h->acl_num--; |
fcd89c09 | 489 | break; |
bd1eb66b AE |
490 | case AMP_LINK: |
491 | h->amp_num--; | |
492 | break; | |
fcd89c09 VT |
493 | case LE_LINK: |
494 | h->le_num--; | |
495 | break; | |
496 | case SCO_LINK: | |
497 | case ESCO_LINK: | |
1da177e4 | 498 | h->sco_num--; |
fcd89c09 VT |
499 | break; |
500 | } | |
1da177e4 LT |
501 | } |
502 | ||
52087a79 LAD |
503 | static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
504 | { | |
505 | struct hci_conn_hash *h = &hdev->conn_hash; | |
506 | switch (type) { | |
507 | case ACL_LINK: | |
508 | return h->acl_num; | |
bd1eb66b AE |
509 | case AMP_LINK: |
510 | return h->amp_num; | |
52087a79 LAD |
511 | case LE_LINK: |
512 | return h->le_num; | |
513 | case SCO_LINK: | |
514 | case ESCO_LINK: | |
515 | return h->sco_num; | |
516 | default: | |
517 | return 0; | |
518 | } | |
519 | } | |
520 | ||
1da177e4 | 521 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
adc4266d | 522 | __u16 handle) |
1da177e4 LT |
523 | { |
524 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
525 | struct hci_conn *c; |
526 | ||
bf4c6325 GP |
527 | rcu_read_lock(); |
528 | ||
529 | list_for_each_entry_rcu(c, &h->list, list) { | |
530 | if (c->handle == handle) { | |
531 | rcu_read_unlock(); | |
1da177e4 | 532 | return c; |
bf4c6325 | 533 | } |
1da177e4 | 534 | } |
bf4c6325 GP |
535 | rcu_read_unlock(); |
536 | ||
1da177e4 LT |
537 | return NULL; |
538 | } | |
539 | ||
540 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, | |
adc4266d | 541 | __u8 type, bdaddr_t *ba) |
1da177e4 LT |
542 | { |
543 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
544 | struct hci_conn *c; |
545 | ||
bf4c6325 GP |
546 | rcu_read_lock(); |
547 | ||
548 | list_for_each_entry_rcu(c, &h->list, list) { | |
549 | if (c->type == type && !bacmp(&c->dst, ba)) { | |
550 | rcu_read_unlock(); | |
1da177e4 | 551 | return c; |
bf4c6325 | 552 | } |
1da177e4 | 553 | } |
bf4c6325 GP |
554 | |
555 | rcu_read_unlock(); | |
556 | ||
1da177e4 LT |
557 | return NULL; |
558 | } | |
559 | ||
4c67bc74 | 560 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
adc4266d | 561 | __u8 type, __u16 state) |
4c67bc74 MH |
562 | { |
563 | struct hci_conn_hash *h = &hdev->conn_hash; | |
4c67bc74 MH |
564 | struct hci_conn *c; |
565 | ||
bf4c6325 GP |
566 | rcu_read_lock(); |
567 | ||
568 | list_for_each_entry_rcu(c, &h->list, list) { | |
569 | if (c->type == type && c->state == state) { | |
570 | rcu_read_unlock(); | |
4c67bc74 | 571 | return c; |
bf4c6325 | 572 | } |
4c67bc74 | 573 | } |
73d80deb | 574 | |
bf4c6325 | 575 | rcu_read_unlock(); |
73d80deb | 576 | |
4c67bc74 | 577 | return NULL; |
73d80deb LAD |
578 | } |
579 | ||
bed71748 | 580 | void hci_disconnect(struct hci_conn *conn, __u8 reason); |
b6a0dc82 | 581 | void hci_setup_sync(struct hci_conn *conn, __u16 handle); |
e73439d8 | 582 | void hci_sco_setup(struct hci_conn *conn, __u8 status); |
1da177e4 LT |
583 | |
584 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); | |
a9de9248 MH |
585 | int hci_conn_del(struct hci_conn *conn); |
586 | void hci_conn_hash_flush(struct hci_dev *hdev); | |
587 | void hci_conn_check_pending(struct hci_dev *hdev); | |
20714bfe | 588 | void hci_conn_accept(struct hci_conn *conn, int mask); |
1da177e4 | 589 | |
73d80deb | 590 | struct hci_chan *hci_chan_create(struct hci_conn *conn); |
9472007c | 591 | void hci_chan_del(struct hci_chan *chan); |
2c33c06a | 592 | void hci_chan_list_flush(struct hci_conn *conn); |
42c4e53e | 593 | struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); |
73d80deb | 594 | |
5a9d0a3f | 595 | struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, |
b12f62cf | 596 | __u8 dst_type, __u8 sec_level, __u8 auth_type); |
e7c29cb1 | 597 | int hci_conn_check_link_mode(struct hci_conn *conn); |
b3b1b061 | 598 | int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); |
0684e5f9 | 599 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); |
1da177e4 | 600 | int hci_conn_change_link_key(struct hci_conn *conn); |
8c1b2355 | 601 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
1da177e4 | 602 | |
14b12d0b | 603 | void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); |
1da177e4 | 604 | |
9eba32b8 MH |
605 | void hci_conn_hold_device(struct hci_conn *conn); |
606 | void hci_conn_put_device(struct hci_conn *conn); | |
607 | ||
1da177e4 LT |
608 | static inline void hci_conn_hold(struct hci_conn *conn) |
609 | { | |
71becf0c | 610 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 611 | |
1da177e4 | 612 | atomic_inc(&conn->refcnt); |
2f304d1e | 613 | cancel_delayed_work(&conn->disc_work); |
1da177e4 LT |
614 | } |
615 | ||
616 | static inline void hci_conn_put(struct hci_conn *conn) | |
617 | { | |
71becf0c | 618 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 619 | |
1da177e4 | 620 | if (atomic_dec_and_test(&conn->refcnt)) { |
04837f64 | 621 | unsigned long timeo; |
716e4ab5 AE |
622 | |
623 | switch (conn->type) { | |
624 | case ACL_LINK: | |
625 | case LE_LINK: | |
04837f64 | 626 | del_timer(&conn->idle_timer); |
6ac59344 | 627 | if (conn->state == BT_CONNECTED) { |
5f246e89 | 628 | timeo = conn->disc_timeout; |
6ac59344 | 629 | if (!conn->out) |
052b30b0 | 630 | timeo *= 2; |
5a9d0a3f | 631 | } else { |
6ac59344 | 632 | timeo = msecs_to_jiffies(10); |
5a9d0a3f | 633 | } |
716e4ab5 AE |
634 | break; |
635 | ||
636 | case AMP_LINK: | |
637 | timeo = conn->disc_timeout; | |
638 | break; | |
639 | ||
640 | default: | |
04837f64 | 641 | timeo = msecs_to_jiffies(10); |
716e4ab5 | 642 | break; |
5a9d0a3f | 643 | } |
716e4ab5 | 644 | |
2f304d1e | 645 | cancel_delayed_work(&conn->disc_work); |
19c40e3b | 646 | queue_delayed_work(conn->hdev->workqueue, |
716e4ab5 | 647 | &conn->disc_work, timeo); |
1da177e4 LT |
648 | } |
649 | } | |
650 | ||
1da177e4 | 651 | /* ----- HCI Devices ----- */ |
dc946bd8 | 652 | static inline void hci_dev_put(struct hci_dev *d) |
1da177e4 | 653 | { |
376261ae AE |
654 | BT_DBG("%s orig refcnt %d", d->name, |
655 | atomic_read(&d->dev.kobj.kref.refcount)); | |
656 | ||
4c724c71 | 657 | put_device(&d->dev); |
1da177e4 LT |
658 | } |
659 | ||
dc946bd8 | 660 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
1da177e4 | 661 | { |
376261ae AE |
662 | BT_DBG("%s orig refcnt %d", d->name, |
663 | atomic_read(&d->dev.kobj.kref.refcount)); | |
664 | ||
4c724c71 | 665 | get_device(&d->dev); |
1da177e4 LT |
666 | return d; |
667 | } | |
668 | ||
09fd0de5 GP |
669 | #define hci_dev_lock(d) mutex_lock(&d->lock) |
670 | #define hci_dev_unlock(d) mutex_unlock(&d->lock) | |
1da177e4 | 671 | |
aa2b86d7 | 672 | #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
3dc07322 | 673 | #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
aa2b86d7 | 674 | |
155961e8 DH |
675 | static inline void *hci_get_drvdata(struct hci_dev *hdev) |
676 | { | |
677 | return dev_get_drvdata(&hdev->dev); | |
678 | } | |
679 | ||
680 | static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) | |
681 | { | |
682 | dev_set_drvdata(&hdev->dev, data); | |
683 | } | |
684 | ||
8598d064 AE |
685 | /* hci_dev_list shall be locked */ |
686 | static inline uint8_t __hci_num_ctrl(void) | |
687 | { | |
688 | uint8_t count = 0; | |
689 | struct list_head *p; | |
690 | ||
691 | list_for_each(p, &hci_dev_list) { | |
692 | count++; | |
693 | } | |
694 | ||
695 | return count; | |
696 | } | |
697 | ||
1da177e4 | 698 | struct hci_dev *hci_dev_get(int index); |
0c0afedf | 699 | struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); |
1da177e4 LT |
700 | |
701 | struct hci_dev *hci_alloc_dev(void); | |
702 | void hci_free_dev(struct hci_dev *hdev); | |
703 | int hci_register_dev(struct hci_dev *hdev); | |
59735631 | 704 | void hci_unregister_dev(struct hci_dev *hdev); |
1da177e4 LT |
705 | int hci_suspend_dev(struct hci_dev *hdev); |
706 | int hci_resume_dev(struct hci_dev *hdev); | |
707 | int hci_dev_open(__u16 dev); | |
708 | int hci_dev_close(__u16 dev); | |
709 | int hci_dev_reset(__u16 dev); | |
710 | int hci_dev_reset_stat(__u16 dev); | |
711 | int hci_dev_cmd(unsigned int cmd, void __user *arg); | |
712 | int hci_get_dev_list(void __user *arg); | |
713 | int hci_get_dev_info(void __user *arg); | |
714 | int hci_get_conn_list(void __user *arg); | |
715 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); | |
40be492f | 716 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
1da177e4 LT |
717 | int hci_inquiry(void __user *arg); |
718 | ||
c3c7ea65 GP |
719 | struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, |
720 | bdaddr_t *bdaddr); | |
f0358568 | 721 | int hci_blacklist_clear(struct hci_dev *hdev); |
88c1fe4b JH |
722 | int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
723 | int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
f0358568 | 724 | |
2aeb9a1a JH |
725 | int hci_uuids_clear(struct hci_dev *hdev); |
726 | ||
55ed8ca1 JH |
727 | int hci_link_keys_clear(struct hci_dev *hdev); |
728 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
d25e28ab | 729 | int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, |
04124681 | 730 | bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); |
c9839a11 VCG |
731 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]); |
732 | int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, | |
9a006657 AE |
733 | int new_key, u8 authenticated, u8 tk[16], u8 enc_size, |
734 | __le16 ediv, u8 rand[8]); | |
c9839a11 | 735 | struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 736 | u8 addr_type); |
b899efaf | 737 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr); |
b899efaf | 738 | int hci_smp_ltks_clear(struct hci_dev *hdev); |
55ed8ca1 JH |
739 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
740 | ||
2763eda6 SJ |
741 | int hci_remote_oob_data_clear(struct hci_dev *hdev); |
742 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, | |
743 | bdaddr_t *bdaddr); | |
744 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, | |
745 | u8 *randomizer); | |
746 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
747 | ||
1da177e4 LT |
748 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
749 | ||
76bca880 | 750 | int hci_recv_frame(struct sk_buff *skb); |
ef222013 | 751 | int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); |
99811510 | 752 | int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); |
ef222013 | 753 | |
0ac7e700 | 754 | void hci_init_sysfs(struct hci_dev *hdev); |
ce242970 DH |
755 | int hci_add_sysfs(struct hci_dev *hdev); |
756 | void hci_del_sysfs(struct hci_dev *hdev); | |
a67e899c | 757 | void hci_conn_init_sysfs(struct hci_conn *conn); |
b219e3ac MH |
758 | void hci_conn_add_sysfs(struct hci_conn *conn); |
759 | void hci_conn_del_sysfs(struct hci_conn *conn); | |
1da177e4 | 760 | |
6935e0f5 | 761 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
1da177e4 LT |
762 | |
763 | /* ----- LMP capabilities ----- */ | |
04837f64 | 764 | #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) |
761f09e4 JH |
765 | #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) |
766 | #define lmp_hold_capable(dev) ((dev)->features[0] & LMP_HOLD) | |
04837f64 | 767 | #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) |
761f09e4 JH |
768 | #define lmp_park_capable(dev) ((dev)->features[1] & LMP_PARK) |
769 | #define lmp_inq_rssi_capable(dev) ((dev)->features[3] & LMP_RSSI_INQ) | |
5b7f9909 | 770 | #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) |
761f09e4 JH |
771 | #define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR)) |
772 | #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE) | |
773 | #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) | |
774 | #define lmp_pause_enc_capable(dev) ((dev)->features[5] & LMP_PAUSE_ENC) | |
775 | #define lmp_ext_inq_capable(dev) ((dev)->features[6] & LMP_EXT_INQ) | |
ffa88e02 | 776 | #define lmp_le_br_capable(dev) !!((dev)->features[6] & LMP_SIMUL_LE_BR) |
769be974 | 777 | #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) |
e702112f | 778 | #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH) |
761f09e4 JH |
779 | #define lmp_lsto_capable(dev) ((dev)->features[7] & LMP_LSTO) |
780 | #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[7] & LMP_INQ_TX_PWR) | |
781 | #define lmp_ext_feat_capable(dev) ((dev)->features[7] & LMP_EXTFEATURES) | |
1da177e4 | 782 | |
eead27da | 783 | /* ----- Extended LMP capabilities ----- */ |
6b4b73ee | 784 | #define lmp_host_ssp_capable(dev) ((dev)->host_features[0] & LMP_HOST_SSP) |
ffa88e02 GP |
785 | #define lmp_host_le_capable(dev) !!((dev)->host_features[0] & LMP_HOST_LE) |
786 | #define lmp_host_le_br_capable(dev) !!((dev)->host_features[0] & LMP_HOST_LE_BREDR) | |
eead27da | 787 | |
5d05416e AE |
788 | /* returns true if at least one AMP active */ |
789 | static inline bool hci_amp_capable(void) | |
790 | { | |
791 | struct hci_dev *hdev; | |
792 | bool ret = false; | |
793 | ||
794 | read_lock(&hci_dev_list_lock); | |
795 | list_for_each_entry(hdev, &hci_dev_list, list) | |
796 | if (hdev->amp_type == HCI_AMP && | |
797 | test_bit(HCI_UP, &hdev->flags)) | |
798 | ret = true; | |
799 | read_unlock(&hci_dev_list_lock); | |
800 | ||
801 | return ret; | |
802 | } | |
803 | ||
1da177e4 | 804 | /* ----- HCI protocols ----- */ |
20714bfe FD |
805 | #define HCI_PROTO_DEFER 0x01 |
806 | ||
5a9d0a3f | 807 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
20714bfe | 808 | __u8 type, __u8 *flags) |
1da177e4 | 809 | { |
686ebf28 UF |
810 | switch (type) { |
811 | case ACL_LINK: | |
812 | return l2cap_connect_ind(hdev, bdaddr); | |
1da177e4 | 813 | |
686ebf28 UF |
814 | case SCO_LINK: |
815 | case ESCO_LINK: | |
20714bfe | 816 | return sco_connect_ind(hdev, bdaddr, flags); |
1da177e4 | 817 | |
686ebf28 UF |
818 | default: |
819 | BT_ERR("unknown link type %d", type); | |
820 | return -EINVAL; | |
821 | } | |
1da177e4 LT |
822 | } |
823 | ||
824 | static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) | |
825 | { | |
686ebf28 UF |
826 | switch (conn->type) { |
827 | case ACL_LINK: | |
828 | case LE_LINK: | |
829 | l2cap_connect_cfm(conn, status); | |
830 | break; | |
1da177e4 | 831 | |
686ebf28 UF |
832 | case SCO_LINK: |
833 | case ESCO_LINK: | |
834 | sco_connect_cfm(conn, status); | |
835 | break; | |
1da177e4 | 836 | |
686ebf28 UF |
837 | default: |
838 | BT_ERR("unknown link type %d", conn->type); | |
839 | break; | |
840 | } | |
e9a416b5 JH |
841 | |
842 | if (conn->connect_cfm_cb) | |
843 | conn->connect_cfm_cb(conn, status); | |
1da177e4 LT |
844 | } |
845 | ||
2950f21a | 846 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
1da177e4 | 847 | { |
686ebf28 UF |
848 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
849 | return HCI_ERROR_REMOTE_USER_TERM; | |
1da177e4 | 850 | |
686ebf28 | 851 | return l2cap_disconn_ind(conn); |
2950f21a MH |
852 | } |
853 | ||
854 | static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) | |
855 | { | |
686ebf28 UF |
856 | switch (conn->type) { |
857 | case ACL_LINK: | |
858 | case LE_LINK: | |
859 | l2cap_disconn_cfm(conn, reason); | |
860 | break; | |
2950f21a | 861 | |
686ebf28 UF |
862 | case SCO_LINK: |
863 | case ESCO_LINK: | |
864 | sco_disconn_cfm(conn, reason); | |
865 | break; | |
2950f21a | 866 | |
bd1eb66b AE |
867 | /* L2CAP would be handled for BREDR chan */ |
868 | case AMP_LINK: | |
869 | break; | |
870 | ||
686ebf28 UF |
871 | default: |
872 | BT_ERR("unknown link type %d", conn->type); | |
873 | break; | |
874 | } | |
e9a416b5 JH |
875 | |
876 | if (conn->disconn_cfm_cb) | |
877 | conn->disconn_cfm_cb(conn, reason); | |
1da177e4 LT |
878 | } |
879 | ||
880 | static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) | |
881 | { | |
8c1b2355 MH |
882 | __u8 encrypt; |
883 | ||
686ebf28 UF |
884 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
885 | return; | |
886 | ||
51a8efd7 | 887 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
888 | return; |
889 | ||
890 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
686ebf28 | 891 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
892 | |
893 | if (conn->security_cfm_cb) | |
894 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
895 | } |
896 | ||
5a9d0a3f WR |
897 | static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, |
898 | __u8 encrypt) | |
1da177e4 | 899 | { |
686ebf28 UF |
900 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
901 | return; | |
1da177e4 | 902 | |
686ebf28 | 903 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
904 | |
905 | if (conn->security_cfm_cb) | |
906 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
907 | } |
908 | ||
1da177e4 LT |
909 | /* ----- HCI callbacks ----- */ |
910 | struct hci_cb { | |
911 | struct list_head list; | |
912 | ||
913 | char *name; | |
914 | ||
5a9d0a3f WR |
915 | void (*security_cfm) (struct hci_conn *conn, __u8 status, |
916 | __u8 encrypt); | |
1da177e4 LT |
917 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
918 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); | |
919 | }; | |
920 | ||
921 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) | |
922 | { | |
711584ea | 923 | struct hci_cb *cb; |
8c1b2355 | 924 | __u8 encrypt; |
1da177e4 LT |
925 | |
926 | hci_proto_auth_cfm(conn, status); | |
927 | ||
51a8efd7 | 928 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
929 | return; |
930 | ||
931 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
932 | ||
f20d09d5 | 933 | read_lock(&hci_cb_list_lock); |
711584ea | 934 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
935 | if (cb->security_cfm) |
936 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 937 | } |
f20d09d5 | 938 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
939 | } |
940 | ||
5a9d0a3f WR |
941 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, |
942 | __u8 encrypt) | |
1da177e4 | 943 | { |
711584ea | 944 | struct hci_cb *cb; |
1da177e4 | 945 | |
435fef20 MH |
946 | if (conn->sec_level == BT_SECURITY_SDP) |
947 | conn->sec_level = BT_SECURITY_LOW; | |
948 | ||
88167aed VCG |
949 | if (conn->pending_sec_level > conn->sec_level) |
950 | conn->sec_level = conn->pending_sec_level; | |
951 | ||
9719f8af | 952 | hci_proto_encrypt_cfm(conn, status, encrypt); |
1da177e4 | 953 | |
f20d09d5 | 954 | read_lock(&hci_cb_list_lock); |
711584ea | 955 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
956 | if (cb->security_cfm) |
957 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 958 | } |
f20d09d5 | 959 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
960 | } |
961 | ||
962 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) | |
963 | { | |
711584ea | 964 | struct hci_cb *cb; |
1da177e4 | 965 | |
f20d09d5 | 966 | read_lock(&hci_cb_list_lock); |
711584ea | 967 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
968 | if (cb->key_change_cfm) |
969 | cb->key_change_cfm(conn, status); | |
970 | } | |
f20d09d5 | 971 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
972 | } |
973 | ||
5a9d0a3f WR |
974 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
975 | __u8 role) | |
1da177e4 | 976 | { |
711584ea | 977 | struct hci_cb *cb; |
1da177e4 | 978 | |
f20d09d5 | 979 | read_lock(&hci_cb_list_lock); |
711584ea | 980 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
981 | if (cb->role_switch_cfm) |
982 | cb->role_switch_cfm(conn, status, role); | |
983 | } | |
f20d09d5 | 984 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
985 | } |
986 | ||
6759a675 JH |
987 | static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) |
988 | { | |
84d9d071 | 989 | size_t parsed = 0; |
6759a675 | 990 | |
6c0c331e JH |
991 | if (data_len < 2) |
992 | return false; | |
993 | ||
84d9d071 JH |
994 | while (parsed < data_len - 1) { |
995 | u8 field_len = data[0]; | |
6759a675 JH |
996 | |
997 | if (field_len == 0) | |
998 | break; | |
999 | ||
1000 | parsed += field_len + 1; | |
1001 | ||
1002 | if (parsed > data_len) | |
1003 | break; | |
1004 | ||
1005 | if (data[1] == type) | |
1006 | return true; | |
1007 | ||
1008 | data += field_len + 1; | |
1009 | } | |
1010 | ||
1011 | return false; | |
1012 | } | |
1013 | ||
9d939d94 VA |
1014 | static inline size_t eir_get_length(u8 *eir, size_t eir_len) |
1015 | { | |
1016 | size_t parsed = 0; | |
1017 | ||
1018 | while (parsed < eir_len) { | |
1019 | u8 field_len = eir[0]; | |
1020 | ||
1021 | if (field_len == 0) | |
1022 | return parsed; | |
1023 | ||
1024 | parsed += field_len + 1; | |
1025 | eir += field_len + 1; | |
1026 | } | |
1027 | ||
1028 | return eir_len; | |
1029 | } | |
1030 | ||
1dc06093 | 1031 | static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data, |
04124681 | 1032 | u8 data_len) |
1dc06093 JH |
1033 | { |
1034 | eir[eir_len++] = sizeof(type) + data_len; | |
1035 | eir[eir_len++] = type; | |
1036 | memcpy(&eir[eir_len], data, data_len); | |
1037 | eir_len += data_len; | |
1038 | ||
1039 | return eir_len; | |
1040 | } | |
1041 | ||
1da177e4 LT |
1042 | int hci_register_cb(struct hci_cb *hcb); |
1043 | int hci_unregister_cb(struct hci_cb *hcb); | |
1044 | ||
3119ae95 JH |
1045 | struct hci_request { |
1046 | struct hci_dev *hdev; | |
1047 | struct sk_buff_head cmd_q; | |
5d73e034 AG |
1048 | |
1049 | /* If something goes wrong when building the HCI request, the error | |
1050 | * value is stored in this field. | |
1051 | */ | |
1052 | int err; | |
3119ae95 JH |
1053 | }; |
1054 | ||
1055 | void hci_req_init(struct hci_request *req, struct hci_dev *hdev); | |
1056 | int hci_req_run(struct hci_request *req, hci_req_complete_t complete); | |
e348fe6b | 1057 | void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, void *param); |
02350a72 JH |
1058 | void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, void *param, |
1059 | u8 event); | |
9238f36a | 1060 | void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); |
3119ae95 | 1061 | |
75e84b7c JH |
1062 | struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
1063 | void *param, u32 timeout); | |
7b1abbbe JH |
1064 | struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, |
1065 | void *param, u8 event, u32 timeout); | |
75e84b7c | 1066 | |
a9de9248 | 1067 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); |
73d80deb | 1068 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
0d861d8b | 1069 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
1da177e4 | 1070 | |
a9de9248 | 1071 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
1da177e4 | 1072 | |
1da177e4 | 1073 | /* ----- HCI Sockets ----- */ |
470fe1b5 MH |
1074 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
1075 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); | |
cd82e61c | 1076 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 1077 | |
040030ef MH |
1078 | void hci_sock_dev_event(struct hci_dev *hdev, int event); |
1079 | ||
0381101f | 1080 | /* Management interface */ |
591f47f3 AG |
1081 | #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
1082 | #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ | |
1083 | BIT(BDADDR_LE_RANDOM)) | |
1084 | #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ | |
1085 | BIT(BDADDR_LE_PUBLIC) | \ | |
1086 | BIT(BDADDR_LE_RANDOM)) | |
f39799f5 | 1087 | |
0381101f | 1088 | int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); |
744cf19e JH |
1089 | int mgmt_index_added(struct hci_dev *hdev); |
1090 | int mgmt_index_removed(struct hci_dev *hdev); | |
1091 | int mgmt_powered(struct hci_dev *hdev, u8 powered); | |
1092 | int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); | |
1093 | int mgmt_connectable(struct hci_dev *hdev, u8 connectable); | |
1094 | int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); | |
1095 | int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, | |
745c0ce3 | 1096 | bool persistent); |
afc747a6 | 1097 | int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 GP |
1098 | u8 addr_type, u32 flags, u8 *name, u8 name_len, |
1099 | u8 *dev_class); | |
afc747a6 | 1100 | int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
f0d6a0ea | 1101 | u8 link_type, u8 addr_type, u8 reason); |
88c3df13 | 1102 | int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1103 | u8 link_type, u8 addr_type, u8 status); |
48264f06 | 1104 | int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1105 | u8 addr_type, u8 status); |
744cf19e JH |
1106 | int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
1107 | int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
04124681 | 1108 | u8 status); |
744cf19e | 1109 | int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1110 | u8 status); |
744cf19e | 1111 | int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 GP |
1112 | u8 link_type, u8 addr_type, __le32 value, |
1113 | u8 confirm_hint); | |
744cf19e | 1114 | int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1115 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1116 | int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1117 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1118 | int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1119 | u8 link_type, u8 addr_type); |
604086b7 | 1120 | int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1121 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1122 | int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1123 | u8 link_type, u8 addr_type, u8 status); |
92a25256 JH |
1124 | int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1125 | u8 link_type, u8 addr_type, u32 passkey, | |
1126 | u8 entered); | |
bab73cb6 | 1127 | int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1128 | u8 addr_type, u8 status); |
33ef95ed | 1129 | int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
c0ecddc2 | 1130 | int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
7f9a903c | 1131 | int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
04124681 | 1132 | u8 status); |
744cf19e JH |
1133 | int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
1134 | int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, | |
04124681 | 1135 | u8 *randomizer, u8 status); |
06199cf8 | 1136 | int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
48264f06 | 1137 | int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 GP |
1138 | u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, |
1139 | u8 ssp, u8 *eir, u16 eir_len); | |
b644ba33 | 1140 | int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1141 | u8 addr_type, s8 rssi, u8 *name, u8 name_len); |
7a135109 | 1142 | int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status); |
e6d465cb | 1143 | int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status); |
744cf19e | 1144 | int mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
5e0452c0 | 1145 | int mgmt_interleaved_discovery(struct hci_dev *hdev); |
88c1fe4b JH |
1146 | int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
1147 | int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
bb4b2a9a | 1148 | bool mgmt_valid_hdev(struct hci_dev *hdev); |
346af67b VCG |
1149 | int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent); |
1150 | ||
1da177e4 LT |
1151 | /* HCI info for socket */ |
1152 | #define hci_pi(sk) ((struct hci_pinfo *) sk) | |
1153 | ||
1154 | struct hci_pinfo { | |
1155 | struct bt_sock bt; | |
1156 | struct hci_dev *hdev; | |
1157 | struct hci_filter filter; | |
1158 | __u32 cmsg_mask; | |
c02178d2 | 1159 | unsigned short channel; |
1da177e4 LT |
1160 | }; |
1161 | ||
1162 | /* HCI security filter */ | |
1163 | #define HCI_SFLT_MAX_OGF 5 | |
1164 | ||
1165 | struct hci_sec_filter { | |
1166 | __u32 type_mask; | |
1167 | __u32 event_mask[2]; | |
1168 | __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; | |
1169 | }; | |
1170 | ||
1171 | /* ----- HCI requests ----- */ | |
1172 | #define HCI_REQ_DONE 0 | |
1173 | #define HCI_REQ_PEND 1 | |
1174 | #define HCI_REQ_CANCELED 2 | |
1175 | ||
a6a67efd TG |
1176 | #define hci_req_lock(d) mutex_lock(&d->req_lock) |
1177 | #define hci_req_unlock(d) mutex_unlock(&d->req_lock) | |
1da177e4 | 1178 | |
04b4edcb JH |
1179 | void hci_update_ad(struct hci_request *req); |
1180 | ||
2ce603eb CT |
1181 | void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, |
1182 | u16 latency, u16 to_multiplier); | |
a7a595f6 VCG |
1183 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], |
1184 | __u8 ltk[16]); | |
2519a1fc | 1185 | int hci_do_inquiry(struct hci_dev *hdev, u8 length); |
023d5049 | 1186 | int hci_cancel_inquiry(struct hci_dev *hdev); |
28b75a89 | 1187 | int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window, |
04124681 | 1188 | int timeout); |
7dbfac1d | 1189 | int hci_cancel_le_scan(struct hci_dev *hdev); |
2519a1fc | 1190 | |
31f7956c AG |
1191 | u8 bdaddr_to_le(u8 bdaddr_type); |
1192 | ||
1da177e4 | 1193 | #endif /* __HCI_CORE_H */ |