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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 | ||
70f23020 | 272 | atomic_t promisc; |
1da177e4 | 273 | |
ca325f69 MH |
274 | struct dentry *debugfs; |
275 | ||
a91f2e39 | 276 | struct device dev; |
1da177e4 | 277 | |
611b30f7 MH |
278 | struct rfkill *rfkill; |
279 | ||
d23264a8 AG |
280 | unsigned long dev_flags; |
281 | ||
7ba8b4be AG |
282 | struct delayed_work le_scan_disable; |
283 | ||
28b75a89 AG |
284 | struct work_struct le_scan; |
285 | struct le_scan_params le_scan_params; | |
286 | ||
8fa19098 | 287 | __s8 adv_tx_power; |
3f0f524b JH |
288 | __u8 adv_data[HCI_MAX_AD_LENGTH]; |
289 | __u8 adv_data_len; | |
8fa19098 | 290 | |
1da177e4 LT |
291 | int (*open)(struct hci_dev *hdev); |
292 | int (*close)(struct hci_dev *hdev); | |
293 | int (*flush)(struct hci_dev *hdev); | |
f41c70c4 | 294 | int (*setup)(struct hci_dev *hdev); |
1da177e4 | 295 | int (*send)(struct sk_buff *skb); |
1da177e4 LT |
296 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
297 | int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); | |
298 | }; | |
299 | ||
53502d69 AE |
300 | #define HCI_PHY_HANDLE(handle) (handle & 0xff) |
301 | ||
1da177e4 LT |
302 | struct hci_conn { |
303 | struct list_head list; | |
304 | ||
adc4266d | 305 | atomic_t refcnt; |
adc4266d SJ |
306 | |
307 | bdaddr_t dst; | |
5a9d0a3f | 308 | __u8 dst_type; |
adc4266d SJ |
309 | __u16 handle; |
310 | __u16 state; | |
311 | __u8 mode; | |
312 | __u8 type; | |
a0c808b3 | 313 | bool out; |
adc4266d SJ |
314 | __u8 attempt; |
315 | __u8 dev_class[3]; | |
316 | __u8 features[8]; | |
adc4266d SJ |
317 | __u16 interval; |
318 | __u16 pkt_type; | |
319 | __u16 link_policy; | |
320 | __u32 link_mode; | |
13d39315 | 321 | __u8 key_type; |
adc4266d SJ |
322 | __u8 auth_type; |
323 | __u8 sec_level; | |
324 | __u8 pending_sec_level; | |
325 | __u8 pin_length; | |
726b4ffc | 326 | __u8 enc_key_size; |
adc4266d | 327 | __u8 io_capability; |
92a25256 JH |
328 | __u32 passkey_notify; |
329 | __u8 passkey_entered; | |
adc4266d | 330 | __u16 disc_timeout; |
51a8efd7 | 331 | unsigned long flags; |
04837f64 | 332 | |
03b555e1 | 333 | __u8 remote_cap; |
03b555e1 | 334 | __u8 remote_auth; |
3161ae1c | 335 | __u8 remote_id; |
6ec5bcad | 336 | bool flush_key; |
03b555e1 | 337 | |
adc4266d | 338 | unsigned int sent; |
04837f64 | 339 | |
1da177e4 | 340 | struct sk_buff_head data_q; |
2c33c06a | 341 | struct list_head chan_list; |
1da177e4 | 342 | |
19c40e3b | 343 | struct delayed_work disc_work; |
04837f64 | 344 | struct timer_list idle_timer; |
9f61656a | 345 | struct timer_list auto_accept_timer; |
04837f64 | 346 | |
b219e3ac | 347 | struct device dev; |
9eba32b8 | 348 | atomic_t devref; |
b219e3ac | 349 | |
1da177e4 LT |
350 | struct hci_dev *hdev; |
351 | void *l2cap_data; | |
352 | void *sco_data; | |
2b64d153 | 353 | void *smp_conn; |
9740e49d | 354 | struct amp_mgr *amp_mgr; |
1da177e4 LT |
355 | |
356 | struct hci_conn *link; | |
e9a416b5 JH |
357 | |
358 | void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); | |
359 | void (*security_cfm_cb) (struct hci_conn *conn, u8 status); | |
360 | void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); | |
1da177e4 LT |
361 | }; |
362 | ||
73d80deb LAD |
363 | struct hci_chan { |
364 | struct list_head list; | |
42c4e53e | 365 | __u16 handle; |
73d80deb LAD |
366 | struct hci_conn *conn; |
367 | struct sk_buff_head data_q; | |
368 | unsigned int sent; | |
168df8e5 | 369 | __u8 state; |
73d80deb LAD |
370 | }; |
371 | ||
1da177e4 LT |
372 | extern struct list_head hci_dev_list; |
373 | extern struct list_head hci_cb_list; | |
374 | extern rwlock_t hci_dev_list_lock; | |
375 | extern rwlock_t hci_cb_list_lock; | |
376 | ||
686ebf28 UF |
377 | /* ----- HCI interface to upper protocols ----- */ |
378 | extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
9e664631 | 379 | extern void l2cap_connect_cfm(struct hci_conn *hcon, u8 status); |
686ebf28 | 380 | extern int l2cap_disconn_ind(struct hci_conn *hcon); |
9e664631 | 381 | extern void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); |
686ebf28 | 382 | extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); |
c3c7ea65 GP |
383 | extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, |
384 | u16 flags); | |
686ebf28 | 385 | |
20714bfe | 386 | extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); |
9e664631 AE |
387 | extern void sco_connect_cfm(struct hci_conn *hcon, __u8 status); |
388 | extern void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); | |
686ebf28 UF |
389 | extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); |
390 | ||
1da177e4 | 391 | /* ----- Inquiry cache ----- */ |
70f23020 AE |
392 | #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ |
393 | #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ | |
1da177e4 | 394 | |
30883512 | 395 | static inline void discovery_init(struct hci_dev *hdev) |
1da177e4 | 396 | { |
ff9ef578 | 397 | hdev->discovery.state = DISCOVERY_STOPPED; |
30883512 JH |
398 | INIT_LIST_HEAD(&hdev->discovery.all); |
399 | INIT_LIST_HEAD(&hdev->discovery.unknown); | |
400 | INIT_LIST_HEAD(&hdev->discovery.resolve); | |
1da177e4 LT |
401 | } |
402 | ||
30dc78e1 JH |
403 | bool hci_discovery_active(struct hci_dev *hdev); |
404 | ||
ff9ef578 JH |
405 | void hci_discovery_set_state(struct hci_dev *hdev, int state); |
406 | ||
1da177e4 LT |
407 | static inline int inquiry_cache_empty(struct hci_dev *hdev) |
408 | { | |
30883512 | 409 | return list_empty(&hdev->discovery.all); |
1da177e4 LT |
410 | } |
411 | ||
412 | static inline long inquiry_cache_age(struct hci_dev *hdev) | |
413 | { | |
30883512 | 414 | struct discovery_state *c = &hdev->discovery; |
1da177e4 LT |
415 | return jiffies - c->timestamp; |
416 | } | |
417 | ||
418 | static inline long inquiry_entry_age(struct inquiry_entry *e) | |
419 | { | |
420 | return jiffies - e->timestamp; | |
421 | } | |
422 | ||
5a9d0a3f | 423 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
04124681 | 424 | bdaddr_t *bdaddr); |
561aafbc | 425 | struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
04124681 | 426 | bdaddr_t *bdaddr); |
30dc78e1 | 427 | struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
04124681 GP |
428 | bdaddr_t *bdaddr, |
429 | int state); | |
a3d4e20a | 430 | void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
04124681 | 431 | struct inquiry_entry *ie); |
3175405b | 432 | bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
04124681 | 433 | bool name_known, bool *ssp); |
1da177e4 LT |
434 | |
435 | /* ----- HCI Connections ----- */ | |
436 | enum { | |
437 | HCI_CONN_AUTH_PEND, | |
19f8def0 | 438 | HCI_CONN_REAUTH_PEND, |
1da177e4 | 439 | HCI_CONN_ENCRYPT_PEND, |
04837f64 MH |
440 | HCI_CONN_RSWITCH_PEND, |
441 | HCI_CONN_MODE_CHANGE_PEND, | |
e73439d8 | 442 | HCI_CONN_SCO_SETUP_PEND, |
d26a2345 | 443 | HCI_CONN_LE_SMP_PEND, |
b644ba33 | 444 | HCI_CONN_MGMT_CONNECTED, |
58a681ef JH |
445 | HCI_CONN_SSP_ENABLED, |
446 | HCI_CONN_POWER_SAVE, | |
447 | HCI_CONN_REMOTE_OOB, | |
1da177e4 LT |
448 | }; |
449 | ||
aa64a8b5 JH |
450 | static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
451 | { | |
452 | struct hci_dev *hdev = conn->hdev; | |
c3c7ea65 GP |
453 | return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && |
454 | test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); | |
aa64a8b5 JH |
455 | } |
456 | ||
1da177e4 LT |
457 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
458 | { | |
459 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 | 460 | list_add_rcu(&c->list, &h->list); |
fcd89c09 VT |
461 | switch (c->type) { |
462 | case ACL_LINK: | |
1da177e4 | 463 | h->acl_num++; |
fcd89c09 | 464 | break; |
bd1eb66b AE |
465 | case AMP_LINK: |
466 | h->amp_num++; | |
467 | break; | |
fcd89c09 VT |
468 | case LE_LINK: |
469 | h->le_num++; | |
470 | break; | |
471 | case SCO_LINK: | |
472 | case ESCO_LINK: | |
1da177e4 | 473 | h->sco_num++; |
fcd89c09 VT |
474 | break; |
475 | } | |
1da177e4 LT |
476 | } |
477 | ||
478 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) | |
479 | { | |
480 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 GP |
481 | |
482 | list_del_rcu(&c->list); | |
483 | synchronize_rcu(); | |
484 | ||
fcd89c09 VT |
485 | switch (c->type) { |
486 | case ACL_LINK: | |
1da177e4 | 487 | h->acl_num--; |
fcd89c09 | 488 | break; |
bd1eb66b AE |
489 | case AMP_LINK: |
490 | h->amp_num--; | |
491 | break; | |
fcd89c09 VT |
492 | case LE_LINK: |
493 | h->le_num--; | |
494 | break; | |
495 | case SCO_LINK: | |
496 | case ESCO_LINK: | |
1da177e4 | 497 | h->sco_num--; |
fcd89c09 VT |
498 | break; |
499 | } | |
1da177e4 LT |
500 | } |
501 | ||
52087a79 LAD |
502 | static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
503 | { | |
504 | struct hci_conn_hash *h = &hdev->conn_hash; | |
505 | switch (type) { | |
506 | case ACL_LINK: | |
507 | return h->acl_num; | |
bd1eb66b AE |
508 | case AMP_LINK: |
509 | return h->amp_num; | |
52087a79 LAD |
510 | case LE_LINK: |
511 | return h->le_num; | |
512 | case SCO_LINK: | |
513 | case ESCO_LINK: | |
514 | return h->sco_num; | |
515 | default: | |
516 | return 0; | |
517 | } | |
518 | } | |
519 | ||
1da177e4 | 520 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
adc4266d | 521 | __u16 handle) |
1da177e4 LT |
522 | { |
523 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
524 | struct hci_conn *c; |
525 | ||
bf4c6325 GP |
526 | rcu_read_lock(); |
527 | ||
528 | list_for_each_entry_rcu(c, &h->list, list) { | |
529 | if (c->handle == handle) { | |
530 | rcu_read_unlock(); | |
1da177e4 | 531 | return c; |
bf4c6325 | 532 | } |
1da177e4 | 533 | } |
bf4c6325 GP |
534 | rcu_read_unlock(); |
535 | ||
1da177e4 LT |
536 | return NULL; |
537 | } | |
538 | ||
539 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, | |
adc4266d | 540 | __u8 type, bdaddr_t *ba) |
1da177e4 LT |
541 | { |
542 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
543 | struct hci_conn *c; |
544 | ||
bf4c6325 GP |
545 | rcu_read_lock(); |
546 | ||
547 | list_for_each_entry_rcu(c, &h->list, list) { | |
548 | if (c->type == type && !bacmp(&c->dst, ba)) { | |
549 | rcu_read_unlock(); | |
1da177e4 | 550 | return c; |
bf4c6325 | 551 | } |
1da177e4 | 552 | } |
bf4c6325 GP |
553 | |
554 | rcu_read_unlock(); | |
555 | ||
1da177e4 LT |
556 | return NULL; |
557 | } | |
558 | ||
4c67bc74 | 559 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
adc4266d | 560 | __u8 type, __u16 state) |
4c67bc74 MH |
561 | { |
562 | struct hci_conn_hash *h = &hdev->conn_hash; | |
4c67bc74 MH |
563 | struct hci_conn *c; |
564 | ||
bf4c6325 GP |
565 | rcu_read_lock(); |
566 | ||
567 | list_for_each_entry_rcu(c, &h->list, list) { | |
568 | if (c->type == type && c->state == state) { | |
569 | rcu_read_unlock(); | |
4c67bc74 | 570 | return c; |
bf4c6325 | 571 | } |
4c67bc74 | 572 | } |
73d80deb | 573 | |
bf4c6325 | 574 | rcu_read_unlock(); |
73d80deb | 575 | |
4c67bc74 | 576 | return NULL; |
73d80deb LAD |
577 | } |
578 | ||
bed71748 | 579 | void hci_disconnect(struct hci_conn *conn, __u8 reason); |
b6a0dc82 | 580 | void hci_setup_sync(struct hci_conn *conn, __u16 handle); |
e73439d8 | 581 | void hci_sco_setup(struct hci_conn *conn, __u8 status); |
1da177e4 LT |
582 | |
583 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); | |
a9de9248 MH |
584 | int hci_conn_del(struct hci_conn *conn); |
585 | void hci_conn_hash_flush(struct hci_dev *hdev); | |
586 | void hci_conn_check_pending(struct hci_dev *hdev); | |
20714bfe | 587 | void hci_conn_accept(struct hci_conn *conn, int mask); |
1da177e4 | 588 | |
73d80deb | 589 | struct hci_chan *hci_chan_create(struct hci_conn *conn); |
9472007c | 590 | void hci_chan_del(struct hci_chan *chan); |
2c33c06a | 591 | void hci_chan_list_flush(struct hci_conn *conn); |
42c4e53e | 592 | struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); |
73d80deb | 593 | |
5a9d0a3f | 594 | struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, |
b12f62cf | 595 | __u8 dst_type, __u8 sec_level, __u8 auth_type); |
e7c29cb1 | 596 | int hci_conn_check_link_mode(struct hci_conn *conn); |
b3b1b061 | 597 | int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); |
0684e5f9 | 598 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); |
1da177e4 | 599 | int hci_conn_change_link_key(struct hci_conn *conn); |
8c1b2355 | 600 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
1da177e4 | 601 | |
14b12d0b | 602 | void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); |
1da177e4 | 603 | |
9eba32b8 MH |
604 | void hci_conn_hold_device(struct hci_conn *conn); |
605 | void hci_conn_put_device(struct hci_conn *conn); | |
606 | ||
1da177e4 LT |
607 | static inline void hci_conn_hold(struct hci_conn *conn) |
608 | { | |
71becf0c | 609 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 610 | |
1da177e4 | 611 | atomic_inc(&conn->refcnt); |
2f304d1e | 612 | cancel_delayed_work(&conn->disc_work); |
1da177e4 LT |
613 | } |
614 | ||
615 | static inline void hci_conn_put(struct hci_conn *conn) | |
616 | { | |
71becf0c | 617 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 618 | |
1da177e4 | 619 | if (atomic_dec_and_test(&conn->refcnt)) { |
04837f64 | 620 | unsigned long timeo; |
716e4ab5 AE |
621 | |
622 | switch (conn->type) { | |
623 | case ACL_LINK: | |
624 | case LE_LINK: | |
04837f64 | 625 | del_timer(&conn->idle_timer); |
6ac59344 | 626 | if (conn->state == BT_CONNECTED) { |
5f246e89 | 627 | timeo = conn->disc_timeout; |
6ac59344 | 628 | if (!conn->out) |
052b30b0 | 629 | timeo *= 2; |
5a9d0a3f | 630 | } else { |
6ac59344 | 631 | timeo = msecs_to_jiffies(10); |
5a9d0a3f | 632 | } |
716e4ab5 AE |
633 | break; |
634 | ||
635 | case AMP_LINK: | |
636 | timeo = conn->disc_timeout; | |
637 | break; | |
638 | ||
639 | default: | |
04837f64 | 640 | timeo = msecs_to_jiffies(10); |
716e4ab5 | 641 | break; |
5a9d0a3f | 642 | } |
716e4ab5 | 643 | |
2f304d1e | 644 | cancel_delayed_work(&conn->disc_work); |
19c40e3b | 645 | queue_delayed_work(conn->hdev->workqueue, |
716e4ab5 | 646 | &conn->disc_work, timeo); |
1da177e4 LT |
647 | } |
648 | } | |
649 | ||
1da177e4 | 650 | /* ----- HCI Devices ----- */ |
dc946bd8 | 651 | static inline void hci_dev_put(struct hci_dev *d) |
1da177e4 | 652 | { |
376261ae AE |
653 | BT_DBG("%s orig refcnt %d", d->name, |
654 | atomic_read(&d->dev.kobj.kref.refcount)); | |
655 | ||
4c724c71 | 656 | put_device(&d->dev); |
1da177e4 LT |
657 | } |
658 | ||
dc946bd8 | 659 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
1da177e4 | 660 | { |
376261ae AE |
661 | BT_DBG("%s orig refcnt %d", d->name, |
662 | atomic_read(&d->dev.kobj.kref.refcount)); | |
663 | ||
4c724c71 | 664 | get_device(&d->dev); |
1da177e4 LT |
665 | return d; |
666 | } | |
667 | ||
09fd0de5 GP |
668 | #define hci_dev_lock(d) mutex_lock(&d->lock) |
669 | #define hci_dev_unlock(d) mutex_unlock(&d->lock) | |
1da177e4 | 670 | |
aa2b86d7 | 671 | #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
3dc07322 | 672 | #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
aa2b86d7 | 673 | |
155961e8 DH |
674 | static inline void *hci_get_drvdata(struct hci_dev *hdev) |
675 | { | |
676 | return dev_get_drvdata(&hdev->dev); | |
677 | } | |
678 | ||
679 | static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) | |
680 | { | |
681 | dev_set_drvdata(&hdev->dev, data); | |
682 | } | |
683 | ||
8598d064 AE |
684 | /* hci_dev_list shall be locked */ |
685 | static inline uint8_t __hci_num_ctrl(void) | |
686 | { | |
687 | uint8_t count = 0; | |
688 | struct list_head *p; | |
689 | ||
690 | list_for_each(p, &hci_dev_list) { | |
691 | count++; | |
692 | } | |
693 | ||
694 | return count; | |
695 | } | |
696 | ||
1da177e4 | 697 | struct hci_dev *hci_dev_get(int index); |
0c0afedf | 698 | struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); |
1da177e4 LT |
699 | |
700 | struct hci_dev *hci_alloc_dev(void); | |
701 | void hci_free_dev(struct hci_dev *hdev); | |
702 | int hci_register_dev(struct hci_dev *hdev); | |
59735631 | 703 | void hci_unregister_dev(struct hci_dev *hdev); |
1da177e4 LT |
704 | int hci_suspend_dev(struct hci_dev *hdev); |
705 | int hci_resume_dev(struct hci_dev *hdev); | |
706 | int hci_dev_open(__u16 dev); | |
707 | int hci_dev_close(__u16 dev); | |
708 | int hci_dev_reset(__u16 dev); | |
709 | int hci_dev_reset_stat(__u16 dev); | |
710 | int hci_dev_cmd(unsigned int cmd, void __user *arg); | |
711 | int hci_get_dev_list(void __user *arg); | |
712 | int hci_get_dev_info(void __user *arg); | |
713 | int hci_get_conn_list(void __user *arg); | |
714 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); | |
40be492f | 715 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
1da177e4 LT |
716 | int hci_inquiry(void __user *arg); |
717 | ||
c3c7ea65 GP |
718 | struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, |
719 | bdaddr_t *bdaddr); | |
f0358568 | 720 | int hci_blacklist_clear(struct hci_dev *hdev); |
88c1fe4b JH |
721 | int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
722 | int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
f0358568 | 723 | |
2aeb9a1a JH |
724 | int hci_uuids_clear(struct hci_dev *hdev); |
725 | ||
55ed8ca1 JH |
726 | int hci_link_keys_clear(struct hci_dev *hdev); |
727 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
d25e28ab | 728 | int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, |
04124681 | 729 | bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); |
c9839a11 VCG |
730 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]); |
731 | int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, | |
9a006657 AE |
732 | int new_key, u8 authenticated, u8 tk[16], u8 enc_size, |
733 | __le16 ediv, u8 rand[8]); | |
c9839a11 | 734 | struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 735 | u8 addr_type); |
b899efaf | 736 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr); |
b899efaf | 737 | int hci_smp_ltks_clear(struct hci_dev *hdev); |
55ed8ca1 JH |
738 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
739 | ||
2763eda6 SJ |
740 | int hci_remote_oob_data_clear(struct hci_dev *hdev); |
741 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, | |
742 | bdaddr_t *bdaddr); | |
743 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, | |
744 | u8 *randomizer); | |
745 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
746 | ||
1da177e4 LT |
747 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
748 | ||
76bca880 | 749 | int hci_recv_frame(struct sk_buff *skb); |
ef222013 | 750 | int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); |
99811510 | 751 | int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); |
ef222013 | 752 | |
0ac7e700 | 753 | void hci_init_sysfs(struct hci_dev *hdev); |
ce242970 DH |
754 | int hci_add_sysfs(struct hci_dev *hdev); |
755 | void hci_del_sysfs(struct hci_dev *hdev); | |
a67e899c | 756 | void hci_conn_init_sysfs(struct hci_conn *conn); |
b219e3ac MH |
757 | void hci_conn_add_sysfs(struct hci_conn *conn); |
758 | void hci_conn_del_sysfs(struct hci_conn *conn); | |
1da177e4 | 759 | |
6935e0f5 | 760 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
1da177e4 LT |
761 | |
762 | /* ----- LMP capabilities ----- */ | |
04837f64 | 763 | #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) |
761f09e4 JH |
764 | #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) |
765 | #define lmp_hold_capable(dev) ((dev)->features[0] & LMP_HOLD) | |
04837f64 | 766 | #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) |
761f09e4 JH |
767 | #define lmp_park_capable(dev) ((dev)->features[1] & LMP_PARK) |
768 | #define lmp_inq_rssi_capable(dev) ((dev)->features[3] & LMP_RSSI_INQ) | |
5b7f9909 | 769 | #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) |
761f09e4 JH |
770 | #define lmp_bredr_capable(dev) (!((dev)->features[4] & LMP_NO_BREDR)) |
771 | #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE) | |
772 | #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) | |
773 | #define lmp_pause_enc_capable(dev) ((dev)->features[5] & LMP_PAUSE_ENC) | |
774 | #define lmp_ext_inq_capable(dev) ((dev)->features[6] & LMP_EXT_INQ) | |
ffa88e02 | 775 | #define lmp_le_br_capable(dev) !!((dev)->features[6] & LMP_SIMUL_LE_BR) |
769be974 | 776 | #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) |
e702112f | 777 | #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH) |
761f09e4 JH |
778 | #define lmp_lsto_capable(dev) ((dev)->features[7] & LMP_LSTO) |
779 | #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[7] & LMP_INQ_TX_PWR) | |
780 | #define lmp_ext_feat_capable(dev) ((dev)->features[7] & LMP_EXTFEATURES) | |
1da177e4 | 781 | |
eead27da | 782 | /* ----- Extended LMP capabilities ----- */ |
6b4b73ee | 783 | #define lmp_host_ssp_capable(dev) ((dev)->host_features[0] & LMP_HOST_SSP) |
ffa88e02 GP |
784 | #define lmp_host_le_capable(dev) !!((dev)->host_features[0] & LMP_HOST_LE) |
785 | #define lmp_host_le_br_capable(dev) !!((dev)->host_features[0] & LMP_HOST_LE_BREDR) | |
eead27da | 786 | |
5d05416e AE |
787 | /* returns true if at least one AMP active */ |
788 | static inline bool hci_amp_capable(void) | |
789 | { | |
790 | struct hci_dev *hdev; | |
791 | bool ret = false; | |
792 | ||
793 | read_lock(&hci_dev_list_lock); | |
794 | list_for_each_entry(hdev, &hci_dev_list, list) | |
795 | if (hdev->amp_type == HCI_AMP && | |
796 | test_bit(HCI_UP, &hdev->flags)) | |
797 | ret = true; | |
798 | read_unlock(&hci_dev_list_lock); | |
799 | ||
800 | return ret; | |
801 | } | |
802 | ||
1da177e4 | 803 | /* ----- HCI protocols ----- */ |
20714bfe FD |
804 | #define HCI_PROTO_DEFER 0x01 |
805 | ||
5a9d0a3f | 806 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
20714bfe | 807 | __u8 type, __u8 *flags) |
1da177e4 | 808 | { |
686ebf28 UF |
809 | switch (type) { |
810 | case ACL_LINK: | |
811 | return l2cap_connect_ind(hdev, bdaddr); | |
1da177e4 | 812 | |
686ebf28 UF |
813 | case SCO_LINK: |
814 | case ESCO_LINK: | |
20714bfe | 815 | return sco_connect_ind(hdev, bdaddr, flags); |
1da177e4 | 816 | |
686ebf28 UF |
817 | default: |
818 | BT_ERR("unknown link type %d", type); | |
819 | return -EINVAL; | |
820 | } | |
1da177e4 LT |
821 | } |
822 | ||
823 | static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) | |
824 | { | |
686ebf28 UF |
825 | switch (conn->type) { |
826 | case ACL_LINK: | |
827 | case LE_LINK: | |
828 | l2cap_connect_cfm(conn, status); | |
829 | break; | |
1da177e4 | 830 | |
686ebf28 UF |
831 | case SCO_LINK: |
832 | case ESCO_LINK: | |
833 | sco_connect_cfm(conn, status); | |
834 | break; | |
1da177e4 | 835 | |
686ebf28 UF |
836 | default: |
837 | BT_ERR("unknown link type %d", conn->type); | |
838 | break; | |
839 | } | |
e9a416b5 JH |
840 | |
841 | if (conn->connect_cfm_cb) | |
842 | conn->connect_cfm_cb(conn, status); | |
1da177e4 LT |
843 | } |
844 | ||
2950f21a | 845 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
1da177e4 | 846 | { |
686ebf28 UF |
847 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
848 | return HCI_ERROR_REMOTE_USER_TERM; | |
1da177e4 | 849 | |
686ebf28 | 850 | return l2cap_disconn_ind(conn); |
2950f21a MH |
851 | } |
852 | ||
853 | static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) | |
854 | { | |
686ebf28 UF |
855 | switch (conn->type) { |
856 | case ACL_LINK: | |
857 | case LE_LINK: | |
858 | l2cap_disconn_cfm(conn, reason); | |
859 | break; | |
2950f21a | 860 | |
686ebf28 UF |
861 | case SCO_LINK: |
862 | case ESCO_LINK: | |
863 | sco_disconn_cfm(conn, reason); | |
864 | break; | |
2950f21a | 865 | |
bd1eb66b AE |
866 | /* L2CAP would be handled for BREDR chan */ |
867 | case AMP_LINK: | |
868 | break; | |
869 | ||
686ebf28 UF |
870 | default: |
871 | BT_ERR("unknown link type %d", conn->type); | |
872 | break; | |
873 | } | |
e9a416b5 JH |
874 | |
875 | if (conn->disconn_cfm_cb) | |
876 | conn->disconn_cfm_cb(conn, reason); | |
1da177e4 LT |
877 | } |
878 | ||
879 | static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) | |
880 | { | |
8c1b2355 MH |
881 | __u8 encrypt; |
882 | ||
686ebf28 UF |
883 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
884 | return; | |
885 | ||
51a8efd7 | 886 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
887 | return; |
888 | ||
889 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
686ebf28 | 890 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
891 | |
892 | if (conn->security_cfm_cb) | |
893 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
894 | } |
895 | ||
5a9d0a3f WR |
896 | static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, |
897 | __u8 encrypt) | |
1da177e4 | 898 | { |
686ebf28 UF |
899 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
900 | return; | |
1da177e4 | 901 | |
686ebf28 | 902 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
903 | |
904 | if (conn->security_cfm_cb) | |
905 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
906 | } |
907 | ||
1da177e4 LT |
908 | /* ----- HCI callbacks ----- */ |
909 | struct hci_cb { | |
910 | struct list_head list; | |
911 | ||
912 | char *name; | |
913 | ||
5a9d0a3f WR |
914 | void (*security_cfm) (struct hci_conn *conn, __u8 status, |
915 | __u8 encrypt); | |
1da177e4 LT |
916 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
917 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); | |
918 | }; | |
919 | ||
920 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) | |
921 | { | |
711584ea | 922 | struct hci_cb *cb; |
8c1b2355 | 923 | __u8 encrypt; |
1da177e4 LT |
924 | |
925 | hci_proto_auth_cfm(conn, status); | |
926 | ||
51a8efd7 | 927 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
928 | return; |
929 | ||
930 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
931 | ||
f20d09d5 | 932 | read_lock(&hci_cb_list_lock); |
711584ea | 933 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
934 | if (cb->security_cfm) |
935 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 936 | } |
f20d09d5 | 937 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
938 | } |
939 | ||
5a9d0a3f WR |
940 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, |
941 | __u8 encrypt) | |
1da177e4 | 942 | { |
711584ea | 943 | struct hci_cb *cb; |
1da177e4 | 944 | |
435fef20 MH |
945 | if (conn->sec_level == BT_SECURITY_SDP) |
946 | conn->sec_level = BT_SECURITY_LOW; | |
947 | ||
88167aed VCG |
948 | if (conn->pending_sec_level > conn->sec_level) |
949 | conn->sec_level = conn->pending_sec_level; | |
950 | ||
9719f8af | 951 | hci_proto_encrypt_cfm(conn, status, encrypt); |
1da177e4 | 952 | |
f20d09d5 | 953 | read_lock(&hci_cb_list_lock); |
711584ea | 954 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
955 | if (cb->security_cfm) |
956 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 957 | } |
f20d09d5 | 958 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
959 | } |
960 | ||
961 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) | |
962 | { | |
711584ea | 963 | struct hci_cb *cb; |
1da177e4 | 964 | |
f20d09d5 | 965 | read_lock(&hci_cb_list_lock); |
711584ea | 966 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
967 | if (cb->key_change_cfm) |
968 | cb->key_change_cfm(conn, status); | |
969 | } | |
f20d09d5 | 970 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
971 | } |
972 | ||
5a9d0a3f WR |
973 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
974 | __u8 role) | |
1da177e4 | 975 | { |
711584ea | 976 | struct hci_cb *cb; |
1da177e4 | 977 | |
f20d09d5 | 978 | read_lock(&hci_cb_list_lock); |
711584ea | 979 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
980 | if (cb->role_switch_cfm) |
981 | cb->role_switch_cfm(conn, status, role); | |
982 | } | |
f20d09d5 | 983 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
984 | } |
985 | ||
6759a675 JH |
986 | static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) |
987 | { | |
84d9d071 | 988 | size_t parsed = 0; |
6759a675 | 989 | |
6c0c331e JH |
990 | if (data_len < 2) |
991 | return false; | |
992 | ||
84d9d071 JH |
993 | while (parsed < data_len - 1) { |
994 | u8 field_len = data[0]; | |
6759a675 JH |
995 | |
996 | if (field_len == 0) | |
997 | break; | |
998 | ||
999 | parsed += field_len + 1; | |
1000 | ||
1001 | if (parsed > data_len) | |
1002 | break; | |
1003 | ||
1004 | if (data[1] == type) | |
1005 | return true; | |
1006 | ||
1007 | data += field_len + 1; | |
1008 | } | |
1009 | ||
1010 | return false; | |
1011 | } | |
1012 | ||
9d939d94 VA |
1013 | static inline size_t eir_get_length(u8 *eir, size_t eir_len) |
1014 | { | |
1015 | size_t parsed = 0; | |
1016 | ||
1017 | while (parsed < eir_len) { | |
1018 | u8 field_len = eir[0]; | |
1019 | ||
1020 | if (field_len == 0) | |
1021 | return parsed; | |
1022 | ||
1023 | parsed += field_len + 1; | |
1024 | eir += field_len + 1; | |
1025 | } | |
1026 | ||
1027 | return eir_len; | |
1028 | } | |
1029 | ||
1dc06093 | 1030 | static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data, |
04124681 | 1031 | u8 data_len) |
1dc06093 JH |
1032 | { |
1033 | eir[eir_len++] = sizeof(type) + data_len; | |
1034 | eir[eir_len++] = type; | |
1035 | memcpy(&eir[eir_len], data, data_len); | |
1036 | eir_len += data_len; | |
1037 | ||
1038 | return eir_len; | |
1039 | } | |
1040 | ||
1da177e4 LT |
1041 | int hci_register_cb(struct hci_cb *hcb); |
1042 | int hci_unregister_cb(struct hci_cb *hcb); | |
1043 | ||
3119ae95 JH |
1044 | struct hci_request { |
1045 | struct hci_dev *hdev; | |
1046 | struct sk_buff_head cmd_q; | |
5d73e034 AG |
1047 | |
1048 | /* If something goes wrong when building the HCI request, the error | |
1049 | * value is stored in this field. | |
1050 | */ | |
1051 | int err; | |
3119ae95 JH |
1052 | }; |
1053 | ||
1054 | void hci_req_init(struct hci_request *req, struct hci_dev *hdev); | |
1055 | int hci_req_run(struct hci_request *req, hci_req_complete_t complete); | |
e348fe6b | 1056 | void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, void *param); |
02350a72 JH |
1057 | void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, void *param, |
1058 | u8 event); | |
9238f36a | 1059 | void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); |
3119ae95 | 1060 | |
75e84b7c JH |
1061 | struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
1062 | void *param, u32 timeout); | |
7b1abbbe JH |
1063 | struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, |
1064 | void *param, u8 event, u32 timeout); | |
75e84b7c | 1065 | |
a9de9248 | 1066 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); |
73d80deb | 1067 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
0d861d8b | 1068 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
1da177e4 | 1069 | |
a9de9248 | 1070 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
1da177e4 | 1071 | |
1da177e4 | 1072 | /* ----- HCI Sockets ----- */ |
470fe1b5 MH |
1073 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
1074 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); | |
cd82e61c | 1075 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 1076 | |
040030ef MH |
1077 | void hci_sock_dev_event(struct hci_dev *hdev, int event); |
1078 | ||
0381101f | 1079 | /* Management interface */ |
591f47f3 AG |
1080 | #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
1081 | #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ | |
1082 | BIT(BDADDR_LE_RANDOM)) | |
1083 | #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ | |
1084 | BIT(BDADDR_LE_PUBLIC) | \ | |
1085 | BIT(BDADDR_LE_RANDOM)) | |
f39799f5 | 1086 | |
0381101f | 1087 | int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); |
744cf19e JH |
1088 | int mgmt_index_added(struct hci_dev *hdev); |
1089 | int mgmt_index_removed(struct hci_dev *hdev); | |
1090 | int mgmt_powered(struct hci_dev *hdev, u8 powered); | |
1091 | int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); | |
1092 | int mgmt_connectable(struct hci_dev *hdev, u8 connectable); | |
1093 | int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); | |
1094 | int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, | |
745c0ce3 | 1095 | bool persistent); |
afc747a6 | 1096 | int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 GP |
1097 | u8 addr_type, u32 flags, u8 *name, u8 name_len, |
1098 | u8 *dev_class); | |
afc747a6 | 1099 | int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
f0d6a0ea | 1100 | u8 link_type, u8 addr_type, u8 reason); |
88c3df13 | 1101 | int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1102 | u8 link_type, u8 addr_type, u8 status); |
48264f06 | 1103 | int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1104 | u8 addr_type, u8 status); |
744cf19e JH |
1105 | int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
1106 | int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
04124681 | 1107 | u8 status); |
744cf19e | 1108 | int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1109 | u8 status); |
744cf19e | 1110 | int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 GP |
1111 | u8 link_type, u8 addr_type, __le32 value, |
1112 | u8 confirm_hint); | |
744cf19e | 1113 | int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1114 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1115 | int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1116 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1117 | int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1118 | u8 link_type, u8 addr_type); |
604086b7 | 1119 | int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1120 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1121 | int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1122 | u8 link_type, u8 addr_type, u8 status); |
92a25256 JH |
1123 | int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1124 | u8 link_type, u8 addr_type, u32 passkey, | |
1125 | u8 entered); | |
bab73cb6 | 1126 | int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1127 | u8 addr_type, u8 status); |
33ef95ed | 1128 | int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
c0ecddc2 | 1129 | int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
7f9a903c | 1130 | int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
04124681 | 1131 | u8 status); |
744cf19e JH |
1132 | int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
1133 | int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, | |
04124681 | 1134 | u8 *randomizer, u8 status); |
06199cf8 | 1135 | int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
48264f06 | 1136 | int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 GP |
1137 | u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, |
1138 | u8 ssp, u8 *eir, u16 eir_len); | |
b644ba33 | 1139 | int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1140 | u8 addr_type, s8 rssi, u8 *name, u8 name_len); |
7a135109 | 1141 | int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status); |
e6d465cb | 1142 | int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status); |
744cf19e | 1143 | int mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
5e0452c0 | 1144 | int mgmt_interleaved_discovery(struct hci_dev *hdev); |
88c1fe4b JH |
1145 | int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
1146 | int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
bb4b2a9a | 1147 | bool mgmt_valid_hdev(struct hci_dev *hdev); |
346af67b VCG |
1148 | int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent); |
1149 | ||
1da177e4 LT |
1150 | /* HCI info for socket */ |
1151 | #define hci_pi(sk) ((struct hci_pinfo *) sk) | |
1152 | ||
1153 | struct hci_pinfo { | |
1154 | struct bt_sock bt; | |
1155 | struct hci_dev *hdev; | |
1156 | struct hci_filter filter; | |
1157 | __u32 cmsg_mask; | |
c02178d2 | 1158 | unsigned short channel; |
1da177e4 LT |
1159 | }; |
1160 | ||
1161 | /* HCI security filter */ | |
1162 | #define HCI_SFLT_MAX_OGF 5 | |
1163 | ||
1164 | struct hci_sec_filter { | |
1165 | __u32 type_mask; | |
1166 | __u32 event_mask[2]; | |
1167 | __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; | |
1168 | }; | |
1169 | ||
1170 | /* ----- HCI requests ----- */ | |
1171 | #define HCI_REQ_DONE 0 | |
1172 | #define HCI_REQ_PEND 1 | |
1173 | #define HCI_REQ_CANCELED 2 | |
1174 | ||
a6a67efd TG |
1175 | #define hci_req_lock(d) mutex_lock(&d->req_lock) |
1176 | #define hci_req_unlock(d) mutex_unlock(&d->req_lock) | |
1da177e4 | 1177 | |
04b4edcb JH |
1178 | void hci_update_ad(struct hci_request *req); |
1179 | ||
2ce603eb CT |
1180 | void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, |
1181 | u16 latency, u16 to_multiplier); | |
a7a595f6 VCG |
1182 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], |
1183 | __u8 ltk[16]); | |
2519a1fc | 1184 | int hci_do_inquiry(struct hci_dev *hdev, u8 length); |
023d5049 | 1185 | int hci_cancel_inquiry(struct hci_dev *hdev); |
28b75a89 | 1186 | int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window, |
04124681 | 1187 | int timeout); |
7dbfac1d | 1188 | int hci_cancel_le_scan(struct hci_dev *hdev); |
2519a1fc | 1189 | |
31f7956c AG |
1190 | u8 bdaddr_to_le(u8 bdaddr_type); |
1191 | ||
1da177e4 | 1192 | #endif /* __HCI_CORE_H */ |