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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 | ||
d2c5d77f | 137 | #define HCI_MAX_PAGES 3 |
cad718ed | 138 | |
cd4c5391 | 139 | #define NUM_REASSEMBLY 4 |
1da177e4 LT |
140 | struct hci_dev { |
141 | struct list_head list; | |
09fd0de5 | 142 | struct mutex lock; |
1da177e4 LT |
143 | |
144 | char name[8]; | |
145 | unsigned long flags; | |
146 | __u16 id; | |
c13854ce | 147 | __u8 bus; |
943da25d | 148 | __u8 dev_type; |
1da177e4 | 149 | bdaddr_t bdaddr; |
1f6c6378 | 150 | __u8 dev_name[HCI_MAX_NAME_LENGTH]; |
490c5bab | 151 | __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; |
80a1e1db | 152 | __u8 eir[HCI_MAX_EIR_LENGTH]; |
a9de9248 | 153 | __u8 dev_class[3]; |
1aff6f09 JH |
154 | __u8 major_class; |
155 | __u8 minor_class; | |
d2c5d77f | 156 | __u8 max_page; |
cad718ed | 157 | __u8 features[HCI_MAX_PAGES][8]; |
60e77321 | 158 | __u8 le_features[8]; |
cf1d081f | 159 | __u8 le_white_list_size; |
9b008c04 | 160 | __u8 le_states[8]; |
a9de9248 | 161 | __u8 commands[64]; |
1143e5a6 MH |
162 | __u8 hci_ver; |
163 | __u16 hci_rev; | |
d5859e22 | 164 | __u8 lmp_ver; |
1143e5a6 | 165 | __u16 manufacturer; |
7d69230c | 166 | __u16 lmp_subver; |
1da177e4 | 167 | __u16 voice_setting; |
17fa4b9d | 168 | __u8 io_capability; |
91c4e9b1 | 169 | __s8 inq_tx_power; |
f332ec66 JH |
170 | __u16 page_scan_interval; |
171 | __u16 page_scan_window; | |
172 | __u8 page_scan_type; | |
173 | ||
2b9be137 MH |
174 | __u16 devid_source; |
175 | __u16 devid_vendor; | |
176 | __u16 devid_product; | |
177 | __u16 devid_version; | |
1da177e4 LT |
178 | |
179 | __u16 pkt_type; | |
5b7f9909 | 180 | __u16 esco_type; |
1da177e4 LT |
181 | __u16 link_policy; |
182 | __u16 link_mode; | |
183 | ||
04837f64 MH |
184 | __u32 idle_timeout; |
185 | __u16 sniff_min_interval; | |
186 | __u16 sniff_max_interval; | |
187 | ||
928abaa7 AE |
188 | __u8 amp_status; |
189 | __u32 amp_total_bw; | |
190 | __u32 amp_max_bw; | |
191 | __u32 amp_min_latency; | |
192 | __u32 amp_max_pdu; | |
193 | __u8 amp_type; | |
194 | __u16 amp_pal_cap; | |
195 | __u16 amp_assoc_size; | |
196 | __u32 amp_max_flush_to; | |
197 | __u32 amp_be_flush_to; | |
198 | ||
903e4541 AE |
199 | struct amp_assoc loc_assoc; |
200 | ||
1e89cffb AE |
201 | __u8 flow_ctl_mode; |
202 | ||
9f61656a JH |
203 | unsigned int auto_accept_delay; |
204 | ||
1da177e4 LT |
205 | unsigned long quirks; |
206 | ||
207 | atomic_t cmd_cnt; | |
208 | unsigned int acl_cnt; | |
209 | unsigned int sco_cnt; | |
6ed58ec5 | 210 | unsigned int le_cnt; |
1da177e4 LT |
211 | |
212 | unsigned int acl_mtu; | |
213 | unsigned int sco_mtu; | |
6ed58ec5 | 214 | unsigned int le_mtu; |
1da177e4 LT |
215 | unsigned int acl_pkts; |
216 | unsigned int sco_pkts; | |
6ed58ec5 | 217 | unsigned int le_pkts; |
1da177e4 | 218 | |
350ee4cf AE |
219 | __u16 block_len; |
220 | __u16 block_mtu; | |
221 | __u16 num_blocks; | |
222 | __u16 block_cnt; | |
223 | ||
1da177e4 LT |
224 | unsigned long acl_last_tx; |
225 | unsigned long sco_last_tx; | |
6ed58ec5 | 226 | unsigned long le_last_tx; |
1da177e4 | 227 | |
f48fd9c8 | 228 | struct workqueue_struct *workqueue; |
6ead1bbc | 229 | struct workqueue_struct *req_workqueue; |
f48fd9c8 | 230 | |
ab81cbf9 | 231 | struct work_struct power_on; |
3243553f | 232 | struct delayed_work power_off; |
ab81cbf9 | 233 | |
16ab91ab JH |
234 | __u16 discov_timeout; |
235 | struct delayed_work discov_off; | |
236 | ||
7d78525d JH |
237 | struct delayed_work service_cache; |
238 | ||
6bd32326 | 239 | struct timer_list cmd_timer; |
b78752cc MH |
240 | |
241 | struct work_struct rx_work; | |
c347b765 | 242 | struct work_struct cmd_work; |
3eff45ea | 243 | struct work_struct tx_work; |
1da177e4 LT |
244 | |
245 | struct sk_buff_head rx_q; | |
246 | struct sk_buff_head raw_q; | |
247 | struct sk_buff_head cmd_q; | |
248 | ||
b6ddb638 | 249 | struct sk_buff *recv_evt; |
1da177e4 | 250 | struct sk_buff *sent_cmd; |
cd4c5391 | 251 | struct sk_buff *reassembly[NUM_REASSEMBLY]; |
1da177e4 | 252 | |
a6a67efd | 253 | struct mutex req_lock; |
1da177e4 LT |
254 | wait_queue_head_t req_wait_q; |
255 | __u32 req_status; | |
256 | __u32 req_result; | |
a5040efa | 257 | |
2e58ef3e JH |
258 | struct list_head mgmt_pending; |
259 | ||
30883512 | 260 | struct discovery_state discovery; |
1da177e4 | 261 | struct hci_conn_hash conn_hash; |
ea4bd8ba | 262 | struct list_head blacklist; |
1da177e4 | 263 | |
2aeb9a1a JH |
264 | struct list_head uuids; |
265 | ||
55ed8ca1 JH |
266 | struct list_head link_keys; |
267 | ||
b899efaf VCG |
268 | struct list_head long_term_keys; |
269 | ||
2763eda6 SJ |
270 | struct list_head remote_oob_data; |
271 | ||
1da177e4 LT |
272 | struct hci_dev_stats stat; |
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); | |
f41c70c4 | 296 | int (*setup)(struct hci_dev *hdev); |
1da177e4 | 297 | int (*send)(struct sk_buff *skb); |
1da177e4 LT |
298 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
299 | int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); | |
300 | }; | |
301 | ||
53502d69 AE |
302 | #define HCI_PHY_HANDLE(handle) (handle & 0xff) |
303 | ||
1da177e4 LT |
304 | struct hci_conn { |
305 | struct list_head list; | |
306 | ||
adc4266d | 307 | atomic_t refcnt; |
adc4266d SJ |
308 | |
309 | bdaddr_t dst; | |
5a9d0a3f | 310 | __u8 dst_type; |
adc4266d SJ |
311 | __u16 handle; |
312 | __u16 state; | |
313 | __u8 mode; | |
314 | __u8 type; | |
a0c808b3 | 315 | bool out; |
adc4266d SJ |
316 | __u8 attempt; |
317 | __u8 dev_class[3]; | |
cad718ed | 318 | __u8 features[HCI_MAX_PAGES][8]; |
adc4266d SJ |
319 | __u16 interval; |
320 | __u16 pkt_type; | |
321 | __u16 link_policy; | |
322 | __u32 link_mode; | |
13d39315 | 323 | __u8 key_type; |
adc4266d SJ |
324 | __u8 auth_type; |
325 | __u8 sec_level; | |
326 | __u8 pending_sec_level; | |
327 | __u8 pin_length; | |
726b4ffc | 328 | __u8 enc_key_size; |
adc4266d | 329 | __u8 io_capability; |
92a25256 JH |
330 | __u32 passkey_notify; |
331 | __u8 passkey_entered; | |
adc4266d | 332 | __u16 disc_timeout; |
51a8efd7 | 333 | unsigned long flags; |
04837f64 | 334 | |
03b555e1 | 335 | __u8 remote_cap; |
03b555e1 | 336 | __u8 remote_auth; |
3161ae1c | 337 | __u8 remote_id; |
6ec5bcad | 338 | bool flush_key; |
03b555e1 | 339 | |
adc4266d | 340 | unsigned int sent; |
04837f64 | 341 | |
1da177e4 | 342 | struct sk_buff_head data_q; |
2c33c06a | 343 | struct list_head chan_list; |
1da177e4 | 344 | |
19c40e3b | 345 | struct delayed_work disc_work; |
04837f64 | 346 | struct timer_list idle_timer; |
9f61656a | 347 | struct timer_list auto_accept_timer; |
04837f64 | 348 | |
b219e3ac MH |
349 | struct device dev; |
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); |
1f9b9a5d | 435 | void hci_inquiry_cache_flush(struct hci_dev *hdev); |
1da177e4 LT |
436 | |
437 | /* ----- HCI Connections ----- */ | |
438 | enum { | |
439 | HCI_CONN_AUTH_PEND, | |
19f8def0 | 440 | HCI_CONN_REAUTH_PEND, |
1da177e4 | 441 | HCI_CONN_ENCRYPT_PEND, |
04837f64 MH |
442 | HCI_CONN_RSWITCH_PEND, |
443 | HCI_CONN_MODE_CHANGE_PEND, | |
e73439d8 | 444 | HCI_CONN_SCO_SETUP_PEND, |
d26a2345 | 445 | HCI_CONN_LE_SMP_PEND, |
b644ba33 | 446 | HCI_CONN_MGMT_CONNECTED, |
58a681ef JH |
447 | HCI_CONN_SSP_ENABLED, |
448 | HCI_CONN_POWER_SAVE, | |
449 | HCI_CONN_REMOTE_OOB, | |
1da177e4 LT |
450 | }; |
451 | ||
aa64a8b5 JH |
452 | static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
453 | { | |
454 | struct hci_dev *hdev = conn->hdev; | |
c3c7ea65 GP |
455 | return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && |
456 | test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); | |
aa64a8b5 JH |
457 | } |
458 | ||
1da177e4 LT |
459 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
460 | { | |
461 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 | 462 | list_add_rcu(&c->list, &h->list); |
fcd89c09 VT |
463 | switch (c->type) { |
464 | case ACL_LINK: | |
1da177e4 | 465 | h->acl_num++; |
fcd89c09 | 466 | break; |
bd1eb66b AE |
467 | case AMP_LINK: |
468 | h->amp_num++; | |
469 | break; | |
fcd89c09 VT |
470 | case LE_LINK: |
471 | h->le_num++; | |
472 | break; | |
473 | case SCO_LINK: | |
474 | case ESCO_LINK: | |
1da177e4 | 475 | h->sco_num++; |
fcd89c09 VT |
476 | break; |
477 | } | |
1da177e4 LT |
478 | } |
479 | ||
480 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) | |
481 | { | |
482 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 GP |
483 | |
484 | list_del_rcu(&c->list); | |
485 | synchronize_rcu(); | |
486 | ||
fcd89c09 VT |
487 | switch (c->type) { |
488 | case ACL_LINK: | |
1da177e4 | 489 | h->acl_num--; |
fcd89c09 | 490 | break; |
bd1eb66b AE |
491 | case AMP_LINK: |
492 | h->amp_num--; | |
493 | break; | |
fcd89c09 VT |
494 | case LE_LINK: |
495 | h->le_num--; | |
496 | break; | |
497 | case SCO_LINK: | |
498 | case ESCO_LINK: | |
1da177e4 | 499 | h->sco_num--; |
fcd89c09 VT |
500 | break; |
501 | } | |
1da177e4 LT |
502 | } |
503 | ||
52087a79 LAD |
504 | static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
505 | { | |
506 | struct hci_conn_hash *h = &hdev->conn_hash; | |
507 | switch (type) { | |
508 | case ACL_LINK: | |
509 | return h->acl_num; | |
bd1eb66b AE |
510 | case AMP_LINK: |
511 | return h->amp_num; | |
52087a79 LAD |
512 | case LE_LINK: |
513 | return h->le_num; | |
514 | case SCO_LINK: | |
515 | case ESCO_LINK: | |
516 | return h->sco_num; | |
517 | default: | |
518 | return 0; | |
519 | } | |
520 | } | |
521 | ||
1da177e4 | 522 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
adc4266d | 523 | __u16 handle) |
1da177e4 LT |
524 | { |
525 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
526 | struct hci_conn *c; |
527 | ||
bf4c6325 GP |
528 | rcu_read_lock(); |
529 | ||
530 | list_for_each_entry_rcu(c, &h->list, list) { | |
531 | if (c->handle == handle) { | |
532 | rcu_read_unlock(); | |
1da177e4 | 533 | return c; |
bf4c6325 | 534 | } |
1da177e4 | 535 | } |
bf4c6325 GP |
536 | rcu_read_unlock(); |
537 | ||
1da177e4 LT |
538 | return NULL; |
539 | } | |
540 | ||
541 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, | |
adc4266d | 542 | __u8 type, bdaddr_t *ba) |
1da177e4 LT |
543 | { |
544 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
545 | struct hci_conn *c; |
546 | ||
bf4c6325 GP |
547 | rcu_read_lock(); |
548 | ||
549 | list_for_each_entry_rcu(c, &h->list, list) { | |
550 | if (c->type == type && !bacmp(&c->dst, ba)) { | |
551 | rcu_read_unlock(); | |
1da177e4 | 552 | return c; |
bf4c6325 | 553 | } |
1da177e4 | 554 | } |
bf4c6325 GP |
555 | |
556 | rcu_read_unlock(); | |
557 | ||
1da177e4 LT |
558 | return NULL; |
559 | } | |
560 | ||
4c67bc74 | 561 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
adc4266d | 562 | __u8 type, __u16 state) |
4c67bc74 MH |
563 | { |
564 | struct hci_conn_hash *h = &hdev->conn_hash; | |
4c67bc74 MH |
565 | struct hci_conn *c; |
566 | ||
bf4c6325 GP |
567 | rcu_read_lock(); |
568 | ||
569 | list_for_each_entry_rcu(c, &h->list, list) { | |
570 | if (c->type == type && c->state == state) { | |
571 | rcu_read_unlock(); | |
4c67bc74 | 572 | return c; |
bf4c6325 | 573 | } |
4c67bc74 | 574 | } |
73d80deb | 575 | |
bf4c6325 | 576 | rcu_read_unlock(); |
73d80deb | 577 | |
4c67bc74 | 578 | return NULL; |
73d80deb LAD |
579 | } |
580 | ||
bed71748 | 581 | void hci_disconnect(struct hci_conn *conn, __u8 reason); |
b6a0dc82 | 582 | void hci_setup_sync(struct hci_conn *conn, __u16 handle); |
e73439d8 | 583 | void hci_sco_setup(struct hci_conn *conn, __u8 status); |
1da177e4 LT |
584 | |
585 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); | |
a9de9248 MH |
586 | int hci_conn_del(struct hci_conn *conn); |
587 | void hci_conn_hash_flush(struct hci_dev *hdev); | |
588 | void hci_conn_check_pending(struct hci_dev *hdev); | |
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 | |
8d12356f DH |
605 | /* |
606 | * hci_conn_get() and hci_conn_put() are used to control the life-time of an | |
607 | * "hci_conn" object. They do not guarantee that the hci_conn object is running, | |
608 | * working or anything else. They just guarantee that the object is available | |
609 | * and can be dereferenced. So you can use its locks, local variables and any | |
610 | * other constant data. | |
611 | * Before accessing runtime data, you _must_ lock the object and then check that | |
612 | * it is still running. As soon as you release the locks, the connection might | |
613 | * get dropped, though. | |
614 | * | |
615 | * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control | |
616 | * how long the underlying connection is held. So every channel that runs on the | |
617 | * hci_conn object calls this to prevent the connection from disappearing. As | |
618 | * long as you hold a device, you must also guarantee that you have a valid | |
619 | * reference to the device via hci_conn_get() (or the initial reference from | |
620 | * hci_conn_add()). | |
621 | * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't | |
622 | * break because nobody cares for that. But this means, we cannot use | |
623 | * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). | |
624 | */ | |
625 | ||
626 | static inline void hci_conn_get(struct hci_conn *conn) | |
627 | { | |
628 | get_device(&conn->dev); | |
629 | } | |
630 | ||
631 | static inline void hci_conn_put(struct hci_conn *conn) | |
632 | { | |
633 | put_device(&conn->dev); | |
634 | } | |
635 | ||
1da177e4 LT |
636 | static inline void hci_conn_hold(struct hci_conn *conn) |
637 | { | |
71becf0c | 638 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 639 | |
1da177e4 | 640 | atomic_inc(&conn->refcnt); |
2f304d1e | 641 | cancel_delayed_work(&conn->disc_work); |
1da177e4 LT |
642 | } |
643 | ||
76a68ba0 | 644 | static inline void hci_conn_drop(struct hci_conn *conn) |
1da177e4 | 645 | { |
71becf0c | 646 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 647 | |
1da177e4 | 648 | if (atomic_dec_and_test(&conn->refcnt)) { |
04837f64 | 649 | unsigned long timeo; |
716e4ab5 AE |
650 | |
651 | switch (conn->type) { | |
652 | case ACL_LINK: | |
653 | case LE_LINK: | |
04837f64 | 654 | del_timer(&conn->idle_timer); |
6ac59344 | 655 | if (conn->state == BT_CONNECTED) { |
5f246e89 | 656 | timeo = conn->disc_timeout; |
6ac59344 | 657 | if (!conn->out) |
052b30b0 | 658 | timeo *= 2; |
5a9d0a3f | 659 | } else { |
6ac59344 | 660 | timeo = msecs_to_jiffies(10); |
5a9d0a3f | 661 | } |
716e4ab5 AE |
662 | break; |
663 | ||
664 | case AMP_LINK: | |
665 | timeo = conn->disc_timeout; | |
666 | break; | |
667 | ||
668 | default: | |
04837f64 | 669 | timeo = msecs_to_jiffies(10); |
716e4ab5 | 670 | break; |
5a9d0a3f | 671 | } |
716e4ab5 | 672 | |
2f304d1e | 673 | cancel_delayed_work(&conn->disc_work); |
19c40e3b | 674 | queue_delayed_work(conn->hdev->workqueue, |
716e4ab5 | 675 | &conn->disc_work, timeo); |
1da177e4 LT |
676 | } |
677 | } | |
678 | ||
1da177e4 | 679 | /* ----- HCI Devices ----- */ |
dc946bd8 | 680 | static inline void hci_dev_put(struct hci_dev *d) |
1da177e4 | 681 | { |
376261ae AE |
682 | BT_DBG("%s orig refcnt %d", d->name, |
683 | atomic_read(&d->dev.kobj.kref.refcount)); | |
684 | ||
4c724c71 | 685 | put_device(&d->dev); |
1da177e4 LT |
686 | } |
687 | ||
dc946bd8 | 688 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
1da177e4 | 689 | { |
376261ae AE |
690 | BT_DBG("%s orig refcnt %d", d->name, |
691 | atomic_read(&d->dev.kobj.kref.refcount)); | |
692 | ||
4c724c71 | 693 | get_device(&d->dev); |
1da177e4 LT |
694 | return d; |
695 | } | |
696 | ||
09fd0de5 GP |
697 | #define hci_dev_lock(d) mutex_lock(&d->lock) |
698 | #define hci_dev_unlock(d) mutex_unlock(&d->lock) | |
1da177e4 | 699 | |
aa2b86d7 | 700 | #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
3dc07322 | 701 | #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
aa2b86d7 | 702 | |
155961e8 DH |
703 | static inline void *hci_get_drvdata(struct hci_dev *hdev) |
704 | { | |
705 | return dev_get_drvdata(&hdev->dev); | |
706 | } | |
707 | ||
708 | static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) | |
709 | { | |
710 | dev_set_drvdata(&hdev->dev, data); | |
711 | } | |
712 | ||
8598d064 AE |
713 | /* hci_dev_list shall be locked */ |
714 | static inline uint8_t __hci_num_ctrl(void) | |
715 | { | |
716 | uint8_t count = 0; | |
717 | struct list_head *p; | |
718 | ||
719 | list_for_each(p, &hci_dev_list) { | |
720 | count++; | |
721 | } | |
722 | ||
723 | return count; | |
724 | } | |
725 | ||
1da177e4 | 726 | struct hci_dev *hci_dev_get(int index); |
0c0afedf | 727 | struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); |
1da177e4 LT |
728 | |
729 | struct hci_dev *hci_alloc_dev(void); | |
730 | void hci_free_dev(struct hci_dev *hdev); | |
731 | int hci_register_dev(struct hci_dev *hdev); | |
59735631 | 732 | void hci_unregister_dev(struct hci_dev *hdev); |
1da177e4 LT |
733 | int hci_suspend_dev(struct hci_dev *hdev); |
734 | int hci_resume_dev(struct hci_dev *hdev); | |
735 | int hci_dev_open(__u16 dev); | |
736 | int hci_dev_close(__u16 dev); | |
737 | int hci_dev_reset(__u16 dev); | |
738 | int hci_dev_reset_stat(__u16 dev); | |
739 | int hci_dev_cmd(unsigned int cmd, void __user *arg); | |
740 | int hci_get_dev_list(void __user *arg); | |
741 | int hci_get_dev_info(void __user *arg); | |
742 | int hci_get_conn_list(void __user *arg); | |
743 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); | |
40be492f | 744 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
1da177e4 LT |
745 | int hci_inquiry(void __user *arg); |
746 | ||
c3c7ea65 GP |
747 | struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, |
748 | bdaddr_t *bdaddr); | |
f0358568 | 749 | int hci_blacklist_clear(struct hci_dev *hdev); |
88c1fe4b JH |
750 | int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
751 | int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
f0358568 | 752 | |
2aeb9a1a JH |
753 | int hci_uuids_clear(struct hci_dev *hdev); |
754 | ||
55ed8ca1 JH |
755 | int hci_link_keys_clear(struct hci_dev *hdev); |
756 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
d25e28ab | 757 | int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, |
04124681 | 758 | bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); |
c9839a11 VCG |
759 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]); |
760 | int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, | |
9a006657 AE |
761 | int new_key, u8 authenticated, u8 tk[16], u8 enc_size, |
762 | __le16 ediv, u8 rand[8]); | |
c9839a11 | 763 | struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 764 | u8 addr_type); |
b899efaf | 765 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr); |
b899efaf | 766 | int hci_smp_ltks_clear(struct hci_dev *hdev); |
55ed8ca1 JH |
767 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
768 | ||
2763eda6 SJ |
769 | int hci_remote_oob_data_clear(struct hci_dev *hdev); |
770 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, | |
771 | bdaddr_t *bdaddr); | |
772 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, | |
773 | u8 *randomizer); | |
774 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
775 | ||
1da177e4 LT |
776 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
777 | ||
76bca880 | 778 | int hci_recv_frame(struct sk_buff *skb); |
ef222013 | 779 | int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); |
99811510 | 780 | int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); |
ef222013 | 781 | |
0ac7e700 | 782 | void hci_init_sysfs(struct hci_dev *hdev); |
ce242970 DH |
783 | int hci_add_sysfs(struct hci_dev *hdev); |
784 | void hci_del_sysfs(struct hci_dev *hdev); | |
a67e899c | 785 | void hci_conn_init_sysfs(struct hci_conn *conn); |
b219e3ac MH |
786 | void hci_conn_add_sysfs(struct hci_conn *conn); |
787 | void hci_conn_del_sysfs(struct hci_conn *conn); | |
1da177e4 | 788 | |
6935e0f5 | 789 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
1da177e4 LT |
790 | |
791 | /* ----- LMP capabilities ----- */ | |
cad718ed JH |
792 | #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) |
793 | #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) | |
794 | #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) | |
795 | #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) | |
796 | #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) | |
797 | #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) | |
798 | #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) | |
799 | #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) | |
800 | #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) | |
801 | #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) | |
802 | #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) | |
803 | #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) | |
804 | #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) | |
805 | #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) | |
806 | #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) | |
807 | #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) | |
808 | #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) | |
809 | #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) | |
1da177e4 | 810 | |
eead27da | 811 | /* ----- Extended LMP capabilities ----- */ |
cad718ed JH |
812 | #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) |
813 | #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) | |
814 | #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) | |
eead27da | 815 | |
5d05416e AE |
816 | /* returns true if at least one AMP active */ |
817 | static inline bool hci_amp_capable(void) | |
818 | { | |
819 | struct hci_dev *hdev; | |
820 | bool ret = false; | |
821 | ||
822 | read_lock(&hci_dev_list_lock); | |
823 | list_for_each_entry(hdev, &hci_dev_list, list) | |
824 | if (hdev->amp_type == HCI_AMP && | |
825 | test_bit(HCI_UP, &hdev->flags)) | |
826 | ret = true; | |
827 | read_unlock(&hci_dev_list_lock); | |
828 | ||
829 | return ret; | |
830 | } | |
831 | ||
1da177e4 | 832 | /* ----- HCI protocols ----- */ |
20714bfe FD |
833 | #define HCI_PROTO_DEFER 0x01 |
834 | ||
5a9d0a3f | 835 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
20714bfe | 836 | __u8 type, __u8 *flags) |
1da177e4 | 837 | { |
686ebf28 UF |
838 | switch (type) { |
839 | case ACL_LINK: | |
840 | return l2cap_connect_ind(hdev, bdaddr); | |
1da177e4 | 841 | |
686ebf28 UF |
842 | case SCO_LINK: |
843 | case ESCO_LINK: | |
20714bfe | 844 | return sco_connect_ind(hdev, bdaddr, flags); |
1da177e4 | 845 | |
686ebf28 UF |
846 | default: |
847 | BT_ERR("unknown link type %d", type); | |
848 | return -EINVAL; | |
849 | } | |
1da177e4 LT |
850 | } |
851 | ||
852 | static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) | |
853 | { | |
686ebf28 UF |
854 | switch (conn->type) { |
855 | case ACL_LINK: | |
856 | case LE_LINK: | |
857 | l2cap_connect_cfm(conn, status); | |
858 | break; | |
1da177e4 | 859 | |
686ebf28 UF |
860 | case SCO_LINK: |
861 | case ESCO_LINK: | |
862 | sco_connect_cfm(conn, status); | |
863 | break; | |
1da177e4 | 864 | |
686ebf28 UF |
865 | default: |
866 | BT_ERR("unknown link type %d", conn->type); | |
867 | break; | |
868 | } | |
e9a416b5 JH |
869 | |
870 | if (conn->connect_cfm_cb) | |
871 | conn->connect_cfm_cb(conn, status); | |
1da177e4 LT |
872 | } |
873 | ||
2950f21a | 874 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
1da177e4 | 875 | { |
686ebf28 UF |
876 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
877 | return HCI_ERROR_REMOTE_USER_TERM; | |
1da177e4 | 878 | |
686ebf28 | 879 | return l2cap_disconn_ind(conn); |
2950f21a MH |
880 | } |
881 | ||
882 | static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) | |
883 | { | |
686ebf28 UF |
884 | switch (conn->type) { |
885 | case ACL_LINK: | |
886 | case LE_LINK: | |
887 | l2cap_disconn_cfm(conn, reason); | |
888 | break; | |
2950f21a | 889 | |
686ebf28 UF |
890 | case SCO_LINK: |
891 | case ESCO_LINK: | |
892 | sco_disconn_cfm(conn, reason); | |
893 | break; | |
2950f21a | 894 | |
bd1eb66b AE |
895 | /* L2CAP would be handled for BREDR chan */ |
896 | case AMP_LINK: | |
897 | break; | |
898 | ||
686ebf28 UF |
899 | default: |
900 | BT_ERR("unknown link type %d", conn->type); | |
901 | break; | |
902 | } | |
e9a416b5 JH |
903 | |
904 | if (conn->disconn_cfm_cb) | |
905 | conn->disconn_cfm_cb(conn, reason); | |
1da177e4 LT |
906 | } |
907 | ||
908 | static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) | |
909 | { | |
8c1b2355 MH |
910 | __u8 encrypt; |
911 | ||
686ebf28 UF |
912 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
913 | return; | |
914 | ||
51a8efd7 | 915 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
916 | return; |
917 | ||
918 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
686ebf28 | 919 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
920 | |
921 | if (conn->security_cfm_cb) | |
922 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
923 | } |
924 | ||
5a9d0a3f WR |
925 | static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, |
926 | __u8 encrypt) | |
1da177e4 | 927 | { |
686ebf28 UF |
928 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
929 | return; | |
1da177e4 | 930 | |
686ebf28 | 931 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
932 | |
933 | if (conn->security_cfm_cb) | |
934 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
935 | } |
936 | ||
1da177e4 LT |
937 | /* ----- HCI callbacks ----- */ |
938 | struct hci_cb { | |
939 | struct list_head list; | |
940 | ||
941 | char *name; | |
942 | ||
5a9d0a3f WR |
943 | void (*security_cfm) (struct hci_conn *conn, __u8 status, |
944 | __u8 encrypt); | |
1da177e4 LT |
945 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
946 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); | |
947 | }; | |
948 | ||
949 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) | |
950 | { | |
711584ea | 951 | struct hci_cb *cb; |
8c1b2355 | 952 | __u8 encrypt; |
1da177e4 LT |
953 | |
954 | hci_proto_auth_cfm(conn, status); | |
955 | ||
51a8efd7 | 956 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
957 | return; |
958 | ||
959 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
960 | ||
f20d09d5 | 961 | read_lock(&hci_cb_list_lock); |
711584ea | 962 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
963 | if (cb->security_cfm) |
964 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 965 | } |
f20d09d5 | 966 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
967 | } |
968 | ||
5a9d0a3f WR |
969 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, |
970 | __u8 encrypt) | |
1da177e4 | 971 | { |
711584ea | 972 | struct hci_cb *cb; |
1da177e4 | 973 | |
435fef20 MH |
974 | if (conn->sec_level == BT_SECURITY_SDP) |
975 | conn->sec_level = BT_SECURITY_LOW; | |
976 | ||
88167aed VCG |
977 | if (conn->pending_sec_level > conn->sec_level) |
978 | conn->sec_level = conn->pending_sec_level; | |
979 | ||
9719f8af | 980 | hci_proto_encrypt_cfm(conn, status, encrypt); |
1da177e4 | 981 | |
f20d09d5 | 982 | read_lock(&hci_cb_list_lock); |
711584ea | 983 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
984 | if (cb->security_cfm) |
985 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 986 | } |
f20d09d5 | 987 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
988 | } |
989 | ||
990 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) | |
991 | { | |
711584ea | 992 | struct hci_cb *cb; |
1da177e4 | 993 | |
f20d09d5 | 994 | read_lock(&hci_cb_list_lock); |
711584ea | 995 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
996 | if (cb->key_change_cfm) |
997 | cb->key_change_cfm(conn, status); | |
998 | } | |
f20d09d5 | 999 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1000 | } |
1001 | ||
5a9d0a3f WR |
1002 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
1003 | __u8 role) | |
1da177e4 | 1004 | { |
711584ea | 1005 | struct hci_cb *cb; |
1da177e4 | 1006 | |
f20d09d5 | 1007 | read_lock(&hci_cb_list_lock); |
711584ea | 1008 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
1009 | if (cb->role_switch_cfm) |
1010 | cb->role_switch_cfm(conn, status, role); | |
1011 | } | |
f20d09d5 | 1012 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
1013 | } |
1014 | ||
6759a675 JH |
1015 | static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) |
1016 | { | |
84d9d071 | 1017 | size_t parsed = 0; |
6759a675 | 1018 | |
6c0c331e JH |
1019 | if (data_len < 2) |
1020 | return false; | |
1021 | ||
84d9d071 JH |
1022 | while (parsed < data_len - 1) { |
1023 | u8 field_len = data[0]; | |
6759a675 JH |
1024 | |
1025 | if (field_len == 0) | |
1026 | break; | |
1027 | ||
1028 | parsed += field_len + 1; | |
1029 | ||
1030 | if (parsed > data_len) | |
1031 | break; | |
1032 | ||
1033 | if (data[1] == type) | |
1034 | return true; | |
1035 | ||
1036 | data += field_len + 1; | |
1037 | } | |
1038 | ||
1039 | return false; | |
1040 | } | |
1041 | ||
9d939d94 VA |
1042 | static inline size_t eir_get_length(u8 *eir, size_t eir_len) |
1043 | { | |
1044 | size_t parsed = 0; | |
1045 | ||
1046 | while (parsed < eir_len) { | |
1047 | u8 field_len = eir[0]; | |
1048 | ||
1049 | if (field_len == 0) | |
1050 | return parsed; | |
1051 | ||
1052 | parsed += field_len + 1; | |
1053 | eir += field_len + 1; | |
1054 | } | |
1055 | ||
1056 | return eir_len; | |
1057 | } | |
1058 | ||
1dc06093 | 1059 | static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data, |
04124681 | 1060 | u8 data_len) |
1dc06093 JH |
1061 | { |
1062 | eir[eir_len++] = sizeof(type) + data_len; | |
1063 | eir[eir_len++] = type; | |
1064 | memcpy(&eir[eir_len], data, data_len); | |
1065 | eir_len += data_len; | |
1066 | ||
1067 | return eir_len; | |
1068 | } | |
1069 | ||
1da177e4 LT |
1070 | int hci_register_cb(struct hci_cb *hcb); |
1071 | int hci_unregister_cb(struct hci_cb *hcb); | |
1072 | ||
3119ae95 JH |
1073 | struct hci_request { |
1074 | struct hci_dev *hdev; | |
1075 | struct sk_buff_head cmd_q; | |
5d73e034 AG |
1076 | |
1077 | /* If something goes wrong when building the HCI request, the error | |
1078 | * value is stored in this field. | |
1079 | */ | |
1080 | int err; | |
3119ae95 JH |
1081 | }; |
1082 | ||
1083 | void hci_req_init(struct hci_request *req, struct hci_dev *hdev); | |
1084 | int hci_req_run(struct hci_request *req, hci_req_complete_t complete); | |
07dc93dd JH |
1085 | void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, |
1086 | const void *param); | |
1087 | void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, | |
1088 | const void *param, u8 event); | |
9238f36a | 1089 | void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); |
3119ae95 | 1090 | |
75e84b7c | 1091 | struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1092 | const void *param, u32 timeout); |
7b1abbbe | 1093 | struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1094 | const void *param, u8 event, u32 timeout); |
75e84b7c | 1095 | |
07dc93dd JH |
1096 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, |
1097 | const void *param); | |
73d80deb | 1098 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
0d861d8b | 1099 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
1da177e4 | 1100 | |
a9de9248 | 1101 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
1da177e4 | 1102 | |
1da177e4 | 1103 | /* ----- HCI Sockets ----- */ |
470fe1b5 MH |
1104 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
1105 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); | |
cd82e61c | 1106 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 1107 | |
040030ef MH |
1108 | void hci_sock_dev_event(struct hci_dev *hdev, int event); |
1109 | ||
0381101f | 1110 | /* Management interface */ |
591f47f3 AG |
1111 | #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
1112 | #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ | |
1113 | BIT(BDADDR_LE_RANDOM)) | |
1114 | #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ | |
1115 | BIT(BDADDR_LE_PUBLIC) | \ | |
1116 | BIT(BDADDR_LE_RANDOM)) | |
f39799f5 | 1117 | |
0381101f | 1118 | int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); |
744cf19e JH |
1119 | int mgmt_index_added(struct hci_dev *hdev); |
1120 | int mgmt_index_removed(struct hci_dev *hdev); | |
96570ffc | 1121 | int mgmt_set_powered_failed(struct hci_dev *hdev, int err); |
744cf19e JH |
1122 | int mgmt_powered(struct hci_dev *hdev, u8 powered); |
1123 | int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); | |
1124 | int mgmt_connectable(struct hci_dev *hdev, u8 connectable); | |
1125 | int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); | |
1126 | int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, | |
745c0ce3 | 1127 | bool persistent); |
afc747a6 | 1128 | int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 GP |
1129 | u8 addr_type, u32 flags, u8 *name, u8 name_len, |
1130 | u8 *dev_class); | |
afc747a6 | 1131 | int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
f0d6a0ea | 1132 | u8 link_type, u8 addr_type, u8 reason); |
88c3df13 | 1133 | int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1134 | u8 link_type, u8 addr_type, u8 status); |
48264f06 | 1135 | int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1136 | u8 addr_type, u8 status); |
744cf19e JH |
1137 | int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
1138 | int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, | |
04124681 | 1139 | u8 status); |
744cf19e | 1140 | int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1141 | u8 status); |
744cf19e | 1142 | int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 GP |
1143 | u8 link_type, u8 addr_type, __le32 value, |
1144 | u8 confirm_hint); | |
744cf19e | 1145 | int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1146 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1147 | int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1148 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1149 | int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1150 | u8 link_type, u8 addr_type); |
604086b7 | 1151 | int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1152 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1153 | int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1154 | u8 link_type, u8 addr_type, u8 status); |
92a25256 JH |
1155 | int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1156 | u8 link_type, u8 addr_type, u32 passkey, | |
1157 | u8 entered); | |
bab73cb6 | 1158 | int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1159 | u8 addr_type, u8 status); |
33ef95ed | 1160 | int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
c0ecddc2 | 1161 | int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
7f9a903c | 1162 | int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
04124681 | 1163 | u8 status); |
744cf19e JH |
1164 | int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
1165 | int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, | |
04124681 | 1166 | u8 *randomizer, u8 status); |
06199cf8 | 1167 | int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
48264f06 | 1168 | int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 GP |
1169 | u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, |
1170 | u8 ssp, u8 *eir, u16 eir_len); | |
b644ba33 | 1171 | int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
04124681 | 1172 | u8 addr_type, s8 rssi, u8 *name, u8 name_len); |
e6d465cb | 1173 | int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status); |
744cf19e | 1174 | int mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
5e0452c0 | 1175 | int mgmt_interleaved_discovery(struct hci_dev *hdev); |
88c1fe4b JH |
1176 | int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
1177 | int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
bb4b2a9a | 1178 | bool mgmt_valid_hdev(struct hci_dev *hdev); |
346af67b VCG |
1179 | int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent); |
1180 | ||
1da177e4 LT |
1181 | /* HCI info for socket */ |
1182 | #define hci_pi(sk) ((struct hci_pinfo *) sk) | |
1183 | ||
1184 | struct hci_pinfo { | |
1185 | struct bt_sock bt; | |
1186 | struct hci_dev *hdev; | |
1187 | struct hci_filter filter; | |
1188 | __u32 cmsg_mask; | |
c02178d2 | 1189 | unsigned short channel; |
1da177e4 LT |
1190 | }; |
1191 | ||
1192 | /* HCI security filter */ | |
1193 | #define HCI_SFLT_MAX_OGF 5 | |
1194 | ||
1195 | struct hci_sec_filter { | |
1196 | __u32 type_mask; | |
1197 | __u32 event_mask[2]; | |
1198 | __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; | |
1199 | }; | |
1200 | ||
1201 | /* ----- HCI requests ----- */ | |
1202 | #define HCI_REQ_DONE 0 | |
1203 | #define HCI_REQ_PEND 1 | |
1204 | #define HCI_REQ_CANCELED 2 | |
1205 | ||
a6a67efd TG |
1206 | #define hci_req_lock(d) mutex_lock(&d->req_lock) |
1207 | #define hci_req_unlock(d) mutex_unlock(&d->req_lock) | |
1da177e4 | 1208 | |
04b4edcb JH |
1209 | void hci_update_ad(struct hci_request *req); |
1210 | ||
2ce603eb CT |
1211 | void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, |
1212 | u16 latency, u16 to_multiplier); | |
a7a595f6 VCG |
1213 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], |
1214 | __u8 ltk[16]); | |
2519a1fc | 1215 | int hci_do_inquiry(struct hci_dev *hdev, u8 length); |
023d5049 | 1216 | int hci_cancel_inquiry(struct hci_dev *hdev); |
28b75a89 | 1217 | int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window, |
04124681 | 1218 | int timeout); |
7dbfac1d | 1219 | int hci_cancel_le_scan(struct hci_dev *hdev); |
2519a1fc | 1220 | |
31f7956c AG |
1221 | u8 bdaddr_to_le(u8 bdaddr_type); |
1222 | ||
1da177e4 | 1223 | #endif /* __HCI_CORE_H */ |