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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 | ||
490c5bab JH |
120 | #define HCI_MAX_SHORT_NAME_LENGTH 10 |
121 | ||
903e4541 AE |
122 | struct amp_assoc { |
123 | __u16 len; | |
124 | __u16 offset; | |
93c284ee AE |
125 | __u16 rem_len; |
126 | __u16 len_so_far; | |
903e4541 AE |
127 | __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; |
128 | }; | |
129 | ||
d2c5d77f | 130 | #define HCI_MAX_PAGES 3 |
cad718ed | 131 | |
cd4c5391 | 132 | #define NUM_REASSEMBLY 4 |
1da177e4 LT |
133 | struct hci_dev { |
134 | struct list_head list; | |
09fd0de5 | 135 | struct mutex lock; |
1da177e4 LT |
136 | |
137 | char name[8]; | |
138 | unsigned long flags; | |
139 | __u16 id; | |
c13854ce | 140 | __u8 bus; |
943da25d | 141 | __u8 dev_type; |
1da177e4 | 142 | bdaddr_t bdaddr; |
d13eafce | 143 | bdaddr_t static_addr; |
1f6c6378 | 144 | __u8 dev_name[HCI_MAX_NAME_LENGTH]; |
490c5bab | 145 | __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; |
80a1e1db | 146 | __u8 eir[HCI_MAX_EIR_LENGTH]; |
a9de9248 | 147 | __u8 dev_class[3]; |
1aff6f09 JH |
148 | __u8 major_class; |
149 | __u8 minor_class; | |
d2c5d77f | 150 | __u8 max_page; |
cad718ed | 151 | __u8 features[HCI_MAX_PAGES][8]; |
60e77321 | 152 | __u8 le_features[8]; |
cf1d081f | 153 | __u8 le_white_list_size; |
9b008c04 | 154 | __u8 le_states[8]; |
a9de9248 | 155 | __u8 commands[64]; |
1143e5a6 MH |
156 | __u8 hci_ver; |
157 | __u16 hci_rev; | |
d5859e22 | 158 | __u8 lmp_ver; |
1143e5a6 | 159 | __u16 manufacturer; |
7d69230c | 160 | __u16 lmp_subver; |
1da177e4 | 161 | __u16 voice_setting; |
b4cb9fb2 | 162 | __u8 num_iac; |
17fa4b9d | 163 | __u8 io_capability; |
91c4e9b1 | 164 | __s8 inq_tx_power; |
f332ec66 JH |
165 | __u16 page_scan_interval; |
166 | __u16 page_scan_window; | |
167 | __u8 page_scan_type; | |
bef64738 MH |
168 | __u16 le_scan_interval; |
169 | __u16 le_scan_window; | |
f332ec66 | 170 | |
2b9be137 MH |
171 | __u16 devid_source; |
172 | __u16 devid_vendor; | |
173 | __u16 devid_product; | |
174 | __u16 devid_version; | |
1da177e4 LT |
175 | |
176 | __u16 pkt_type; | |
5b7f9909 | 177 | __u16 esco_type; |
1da177e4 LT |
178 | __u16 link_policy; |
179 | __u16 link_mode; | |
180 | ||
04837f64 MH |
181 | __u32 idle_timeout; |
182 | __u16 sniff_min_interval; | |
183 | __u16 sniff_max_interval; | |
184 | ||
928abaa7 AE |
185 | __u8 amp_status; |
186 | __u32 amp_total_bw; | |
187 | __u32 amp_max_bw; | |
188 | __u32 amp_min_latency; | |
189 | __u32 amp_max_pdu; | |
190 | __u8 amp_type; | |
191 | __u16 amp_pal_cap; | |
192 | __u16 amp_assoc_size; | |
193 | __u32 amp_max_flush_to; | |
194 | __u32 amp_be_flush_to; | |
195 | ||
903e4541 AE |
196 | struct amp_assoc loc_assoc; |
197 | ||
1e89cffb AE |
198 | __u8 flow_ctl_mode; |
199 | ||
9f61656a JH |
200 | unsigned int auto_accept_delay; |
201 | ||
1da177e4 LT |
202 | unsigned long quirks; |
203 | ||
204 | atomic_t cmd_cnt; | |
205 | unsigned int acl_cnt; | |
206 | unsigned int sco_cnt; | |
6ed58ec5 | 207 | unsigned int le_cnt; |
1da177e4 LT |
208 | |
209 | unsigned int acl_mtu; | |
210 | unsigned int sco_mtu; | |
6ed58ec5 | 211 | unsigned int le_mtu; |
1da177e4 LT |
212 | unsigned int acl_pkts; |
213 | unsigned int sco_pkts; | |
6ed58ec5 | 214 | unsigned int le_pkts; |
1da177e4 | 215 | |
350ee4cf AE |
216 | __u16 block_len; |
217 | __u16 block_mtu; | |
218 | __u16 num_blocks; | |
219 | __u16 block_cnt; | |
220 | ||
1da177e4 LT |
221 | unsigned long acl_last_tx; |
222 | unsigned long sco_last_tx; | |
6ed58ec5 | 223 | unsigned long le_last_tx; |
1da177e4 | 224 | |
f48fd9c8 | 225 | struct workqueue_struct *workqueue; |
6ead1bbc | 226 | struct workqueue_struct *req_workqueue; |
f48fd9c8 | 227 | |
ab81cbf9 | 228 | struct work_struct power_on; |
3243553f | 229 | struct delayed_work power_off; |
ab81cbf9 | 230 | |
16ab91ab JH |
231 | __u16 discov_timeout; |
232 | struct delayed_work discov_off; | |
233 | ||
7d78525d JH |
234 | struct delayed_work service_cache; |
235 | ||
6bd32326 | 236 | struct timer_list cmd_timer; |
b78752cc MH |
237 | |
238 | struct work_struct rx_work; | |
c347b765 | 239 | struct work_struct cmd_work; |
3eff45ea | 240 | struct work_struct tx_work; |
1da177e4 LT |
241 | |
242 | struct sk_buff_head rx_q; | |
243 | struct sk_buff_head raw_q; | |
244 | struct sk_buff_head cmd_q; | |
245 | ||
b6ddb638 | 246 | struct sk_buff *recv_evt; |
1da177e4 | 247 | struct sk_buff *sent_cmd; |
cd4c5391 | 248 | struct sk_buff *reassembly[NUM_REASSEMBLY]; |
1da177e4 | 249 | |
a6a67efd | 250 | struct mutex req_lock; |
1da177e4 LT |
251 | wait_queue_head_t req_wait_q; |
252 | __u32 req_status; | |
253 | __u32 req_result; | |
a5040efa | 254 | |
2e58ef3e JH |
255 | struct list_head mgmt_pending; |
256 | ||
30883512 | 257 | struct discovery_state discovery; |
1da177e4 | 258 | struct hci_conn_hash conn_hash; |
ea4bd8ba | 259 | struct list_head blacklist; |
1da177e4 | 260 | |
2aeb9a1a JH |
261 | struct list_head uuids; |
262 | ||
55ed8ca1 JH |
263 | struct list_head link_keys; |
264 | ||
b899efaf VCG |
265 | struct list_head long_term_keys; |
266 | ||
2763eda6 SJ |
267 | struct list_head remote_oob_data; |
268 | ||
1da177e4 LT |
269 | struct hci_dev_stats stat; |
270 | ||
70f23020 | 271 | atomic_t promisc; |
1da177e4 | 272 | |
ca325f69 MH |
273 | struct dentry *debugfs; |
274 | ||
a91f2e39 | 275 | struct device dev; |
1da177e4 | 276 | |
611b30f7 MH |
277 | struct rfkill *rfkill; |
278 | ||
d23264a8 AG |
279 | unsigned long dev_flags; |
280 | ||
7ba8b4be AG |
281 | struct delayed_work le_scan_disable; |
282 | ||
8fa19098 | 283 | __s8 adv_tx_power; |
3f0f524b JH |
284 | __u8 adv_data[HCI_MAX_AD_LENGTH]; |
285 | __u8 adv_data_len; | |
8fa19098 | 286 | |
1da177e4 LT |
287 | int (*open)(struct hci_dev *hdev); |
288 | int (*close)(struct hci_dev *hdev); | |
289 | int (*flush)(struct hci_dev *hdev); | |
f41c70c4 | 290 | int (*setup)(struct hci_dev *hdev); |
7bd8f09f | 291 | int (*send)(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 292 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
1da177e4 LT |
293 | }; |
294 | ||
53502d69 AE |
295 | #define HCI_PHY_HANDLE(handle) (handle & 0xff) |
296 | ||
1da177e4 LT |
297 | struct hci_conn { |
298 | struct list_head list; | |
299 | ||
adc4266d | 300 | atomic_t refcnt; |
adc4266d SJ |
301 | |
302 | bdaddr_t dst; | |
5a9d0a3f | 303 | __u8 dst_type; |
662e8820 | 304 | bdaddr_t src; |
e7c4096e | 305 | __u8 src_type; |
adc4266d SJ |
306 | __u16 handle; |
307 | __u16 state; | |
308 | __u8 mode; | |
309 | __u8 type; | |
a0c808b3 | 310 | bool out; |
adc4266d SJ |
311 | __u8 attempt; |
312 | __u8 dev_class[3]; | |
cad718ed | 313 | __u8 features[HCI_MAX_PAGES][8]; |
adc4266d SJ |
314 | __u16 interval; |
315 | __u16 pkt_type; | |
316 | __u16 link_policy; | |
317 | __u32 link_mode; | |
13d39315 | 318 | __u8 key_type; |
adc4266d SJ |
319 | __u8 auth_type; |
320 | __u8 sec_level; | |
321 | __u8 pending_sec_level; | |
322 | __u8 pin_length; | |
726b4ffc | 323 | __u8 enc_key_size; |
adc4266d | 324 | __u8 io_capability; |
92a25256 JH |
325 | __u32 passkey_notify; |
326 | __u8 passkey_entered; | |
adc4266d | 327 | __u16 disc_timeout; |
10c62ddc | 328 | __u16 setting; |
51a8efd7 | 329 | unsigned long flags; |
04837f64 | 330 | |
03b555e1 | 331 | __u8 remote_cap; |
03b555e1 | 332 | __u8 remote_auth; |
3161ae1c | 333 | __u8 remote_id; |
6ec5bcad | 334 | bool flush_key; |
03b555e1 | 335 | |
adc4266d | 336 | unsigned int sent; |
04837f64 | 337 | |
1da177e4 | 338 | struct sk_buff_head data_q; |
2c33c06a | 339 | struct list_head chan_list; |
1da177e4 | 340 | |
19c40e3b | 341 | struct delayed_work disc_work; |
04837f64 | 342 | struct timer_list idle_timer; |
9f61656a | 343 | struct timer_list auto_accept_timer; |
04837f64 | 344 | |
b219e3ac MH |
345 | struct device dev; |
346 | ||
1da177e4 LT |
347 | struct hci_dev *hdev; |
348 | void *l2cap_data; | |
349 | void *sco_data; | |
2b64d153 | 350 | void *smp_conn; |
9740e49d | 351 | struct amp_mgr *amp_mgr; |
1da177e4 LT |
352 | |
353 | struct hci_conn *link; | |
e9a416b5 JH |
354 | |
355 | void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); | |
356 | void (*security_cfm_cb) (struct hci_conn *conn, u8 status); | |
357 | void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); | |
1da177e4 LT |
358 | }; |
359 | ||
73d80deb LAD |
360 | struct hci_chan { |
361 | struct list_head list; | |
42c4e53e | 362 | __u16 handle; |
73d80deb LAD |
363 | struct hci_conn *conn; |
364 | struct sk_buff_head data_q; | |
365 | unsigned int sent; | |
168df8e5 | 366 | __u8 state; |
73d80deb LAD |
367 | }; |
368 | ||
1da177e4 LT |
369 | extern struct list_head hci_dev_list; |
370 | extern struct list_head hci_cb_list; | |
371 | extern rwlock_t hci_dev_list_lock; | |
372 | extern rwlock_t hci_cb_list_lock; | |
373 | ||
686ebf28 UF |
374 | /* ----- HCI interface to upper protocols ----- */ |
375 | extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
9e664631 | 376 | extern void l2cap_connect_cfm(struct hci_conn *hcon, u8 status); |
686ebf28 | 377 | extern int l2cap_disconn_ind(struct hci_conn *hcon); |
9e664631 | 378 | extern void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); |
686ebf28 | 379 | extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); |
c3c7ea65 GP |
380 | extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, |
381 | u16 flags); | |
686ebf28 | 382 | |
20714bfe | 383 | extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); |
9e664631 AE |
384 | extern void sco_connect_cfm(struct hci_conn *hcon, __u8 status); |
385 | extern void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); | |
686ebf28 UF |
386 | extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); |
387 | ||
1da177e4 | 388 | /* ----- Inquiry cache ----- */ |
70f23020 AE |
389 | #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ |
390 | #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ | |
1da177e4 | 391 | |
30883512 | 392 | static inline void discovery_init(struct hci_dev *hdev) |
1da177e4 | 393 | { |
ff9ef578 | 394 | hdev->discovery.state = DISCOVERY_STOPPED; |
30883512 JH |
395 | INIT_LIST_HEAD(&hdev->discovery.all); |
396 | INIT_LIST_HEAD(&hdev->discovery.unknown); | |
397 | INIT_LIST_HEAD(&hdev->discovery.resolve); | |
1da177e4 LT |
398 | } |
399 | ||
30dc78e1 JH |
400 | bool hci_discovery_active(struct hci_dev *hdev); |
401 | ||
ff9ef578 JH |
402 | void hci_discovery_set_state(struct hci_dev *hdev, int state); |
403 | ||
1da177e4 LT |
404 | static inline int inquiry_cache_empty(struct hci_dev *hdev) |
405 | { | |
30883512 | 406 | return list_empty(&hdev->discovery.all); |
1da177e4 LT |
407 | } |
408 | ||
409 | static inline long inquiry_cache_age(struct hci_dev *hdev) | |
410 | { | |
30883512 | 411 | struct discovery_state *c = &hdev->discovery; |
1da177e4 LT |
412 | return jiffies - c->timestamp; |
413 | } | |
414 | ||
415 | static inline long inquiry_entry_age(struct inquiry_entry *e) | |
416 | { | |
417 | return jiffies - e->timestamp; | |
418 | } | |
419 | ||
5a9d0a3f | 420 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
04124681 | 421 | bdaddr_t *bdaddr); |
561aafbc | 422 | struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
04124681 | 423 | bdaddr_t *bdaddr); |
30dc78e1 | 424 | struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
04124681 GP |
425 | bdaddr_t *bdaddr, |
426 | int state); | |
a3d4e20a | 427 | void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
04124681 | 428 | struct inquiry_entry *ie); |
3175405b | 429 | bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
04124681 | 430 | bool name_known, bool *ssp); |
1f9b9a5d | 431 | void hci_inquiry_cache_flush(struct hci_dev *hdev); |
1da177e4 LT |
432 | |
433 | /* ----- HCI Connections ----- */ | |
434 | enum { | |
435 | HCI_CONN_AUTH_PEND, | |
19f8def0 | 436 | HCI_CONN_REAUTH_PEND, |
1da177e4 | 437 | HCI_CONN_ENCRYPT_PEND, |
04837f64 MH |
438 | HCI_CONN_RSWITCH_PEND, |
439 | HCI_CONN_MODE_CHANGE_PEND, | |
e73439d8 | 440 | HCI_CONN_SCO_SETUP_PEND, |
d26a2345 | 441 | HCI_CONN_LE_SMP_PEND, |
b644ba33 | 442 | HCI_CONN_MGMT_CONNECTED, |
58a681ef JH |
443 | HCI_CONN_SSP_ENABLED, |
444 | HCI_CONN_POWER_SAVE, | |
445 | HCI_CONN_REMOTE_OOB, | |
1da177e4 LT |
446 | }; |
447 | ||
aa64a8b5 JH |
448 | static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
449 | { | |
450 | struct hci_dev *hdev = conn->hdev; | |
c3c7ea65 GP |
451 | return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && |
452 | test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); | |
aa64a8b5 JH |
453 | } |
454 | ||
1da177e4 LT |
455 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
456 | { | |
457 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 | 458 | list_add_rcu(&c->list, &h->list); |
fcd89c09 VT |
459 | switch (c->type) { |
460 | case ACL_LINK: | |
1da177e4 | 461 | h->acl_num++; |
fcd89c09 | 462 | break; |
bd1eb66b AE |
463 | case AMP_LINK: |
464 | h->amp_num++; | |
465 | break; | |
fcd89c09 VT |
466 | case LE_LINK: |
467 | h->le_num++; | |
468 | break; | |
469 | case SCO_LINK: | |
470 | case ESCO_LINK: | |
1da177e4 | 471 | h->sco_num++; |
fcd89c09 VT |
472 | break; |
473 | } | |
1da177e4 LT |
474 | } |
475 | ||
476 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) | |
477 | { | |
478 | struct hci_conn_hash *h = &hdev->conn_hash; | |
bf4c6325 GP |
479 | |
480 | list_del_rcu(&c->list); | |
481 | synchronize_rcu(); | |
482 | ||
fcd89c09 VT |
483 | switch (c->type) { |
484 | case ACL_LINK: | |
1da177e4 | 485 | h->acl_num--; |
fcd89c09 | 486 | break; |
bd1eb66b AE |
487 | case AMP_LINK: |
488 | h->amp_num--; | |
489 | break; | |
fcd89c09 VT |
490 | case LE_LINK: |
491 | h->le_num--; | |
492 | break; | |
493 | case SCO_LINK: | |
494 | case ESCO_LINK: | |
1da177e4 | 495 | h->sco_num--; |
fcd89c09 VT |
496 | break; |
497 | } | |
1da177e4 LT |
498 | } |
499 | ||
52087a79 LAD |
500 | static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
501 | { | |
502 | struct hci_conn_hash *h = &hdev->conn_hash; | |
503 | switch (type) { | |
504 | case ACL_LINK: | |
505 | return h->acl_num; | |
bd1eb66b AE |
506 | case AMP_LINK: |
507 | return h->amp_num; | |
52087a79 LAD |
508 | case LE_LINK: |
509 | return h->le_num; | |
510 | case SCO_LINK: | |
511 | case ESCO_LINK: | |
512 | return h->sco_num; | |
513 | default: | |
514 | return 0; | |
515 | } | |
516 | } | |
517 | ||
1da177e4 | 518 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
adc4266d | 519 | __u16 handle) |
1da177e4 LT |
520 | { |
521 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
522 | struct hci_conn *c; |
523 | ||
bf4c6325 GP |
524 | rcu_read_lock(); |
525 | ||
526 | list_for_each_entry_rcu(c, &h->list, list) { | |
527 | if (c->handle == handle) { | |
528 | rcu_read_unlock(); | |
1da177e4 | 529 | return c; |
bf4c6325 | 530 | } |
1da177e4 | 531 | } |
bf4c6325 GP |
532 | rcu_read_unlock(); |
533 | ||
1da177e4 LT |
534 | return NULL; |
535 | } | |
536 | ||
537 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, | |
adc4266d | 538 | __u8 type, bdaddr_t *ba) |
1da177e4 LT |
539 | { |
540 | struct hci_conn_hash *h = &hdev->conn_hash; | |
1da177e4 LT |
541 | struct hci_conn *c; |
542 | ||
bf4c6325 GP |
543 | rcu_read_lock(); |
544 | ||
545 | list_for_each_entry_rcu(c, &h->list, list) { | |
546 | if (c->type == type && !bacmp(&c->dst, ba)) { | |
547 | rcu_read_unlock(); | |
1da177e4 | 548 | return c; |
bf4c6325 | 549 | } |
1da177e4 | 550 | } |
bf4c6325 GP |
551 | |
552 | rcu_read_unlock(); | |
553 | ||
1da177e4 LT |
554 | return NULL; |
555 | } | |
556 | ||
4c67bc74 | 557 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
adc4266d | 558 | __u8 type, __u16 state) |
4c67bc74 MH |
559 | { |
560 | struct hci_conn_hash *h = &hdev->conn_hash; | |
4c67bc74 MH |
561 | struct hci_conn *c; |
562 | ||
bf4c6325 GP |
563 | rcu_read_lock(); |
564 | ||
565 | list_for_each_entry_rcu(c, &h->list, list) { | |
566 | if (c->type == type && c->state == state) { | |
567 | rcu_read_unlock(); | |
4c67bc74 | 568 | return c; |
bf4c6325 | 569 | } |
4c67bc74 | 570 | } |
73d80deb | 571 | |
bf4c6325 | 572 | rcu_read_unlock(); |
73d80deb | 573 | |
4c67bc74 | 574 | return NULL; |
73d80deb LAD |
575 | } |
576 | ||
bed71748 | 577 | void hci_disconnect(struct hci_conn *conn, __u8 reason); |
2dea632f | 578 | bool hci_setup_sync(struct hci_conn *conn, __u16 handle); |
e73439d8 | 579 | void hci_sco_setup(struct hci_conn *conn, __u8 status); |
1da177e4 LT |
580 | |
581 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); | |
a9de9248 MH |
582 | int hci_conn_del(struct hci_conn *conn); |
583 | void hci_conn_hash_flush(struct hci_dev *hdev); | |
584 | void hci_conn_check_pending(struct hci_dev *hdev); | |
1da177e4 | 585 | |
73d80deb | 586 | struct hci_chan *hci_chan_create(struct hci_conn *conn); |
9472007c | 587 | void hci_chan_del(struct hci_chan *chan); |
2c33c06a | 588 | void hci_chan_list_flush(struct hci_conn *conn); |
42c4e53e | 589 | struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); |
73d80deb | 590 | |
5a9d0a3f | 591 | struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, |
b12f62cf | 592 | __u8 dst_type, __u8 sec_level, __u8 auth_type); |
10c62ddc FD |
593 | struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, |
594 | __u16 setting); | |
e7c29cb1 | 595 | int hci_conn_check_link_mode(struct hci_conn *conn); |
b3b1b061 | 596 | int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); |
0684e5f9 | 597 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); |
1da177e4 | 598 | int hci_conn_change_link_key(struct hci_conn *conn); |
8c1b2355 | 599 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
1da177e4 | 600 | |
14b12d0b | 601 | void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); |
1da177e4 | 602 | |
8d12356f DH |
603 | /* |
604 | * hci_conn_get() and hci_conn_put() are used to control the life-time of an | |
605 | * "hci_conn" object. They do not guarantee that the hci_conn object is running, | |
606 | * working or anything else. They just guarantee that the object is available | |
607 | * and can be dereferenced. So you can use its locks, local variables and any | |
608 | * other constant data. | |
609 | * Before accessing runtime data, you _must_ lock the object and then check that | |
610 | * it is still running. As soon as you release the locks, the connection might | |
611 | * get dropped, though. | |
612 | * | |
613 | * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control | |
614 | * how long the underlying connection is held. So every channel that runs on the | |
615 | * hci_conn object calls this to prevent the connection from disappearing. As | |
616 | * long as you hold a device, you must also guarantee that you have a valid | |
617 | * reference to the device via hci_conn_get() (or the initial reference from | |
618 | * hci_conn_add()). | |
619 | * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't | |
620 | * break because nobody cares for that. But this means, we cannot use | |
621 | * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). | |
622 | */ | |
623 | ||
624 | static inline void hci_conn_get(struct hci_conn *conn) | |
625 | { | |
626 | get_device(&conn->dev); | |
627 | } | |
628 | ||
629 | static inline void hci_conn_put(struct hci_conn *conn) | |
630 | { | |
631 | put_device(&conn->dev); | |
632 | } | |
633 | ||
1da177e4 LT |
634 | static inline void hci_conn_hold(struct hci_conn *conn) |
635 | { | |
71becf0c | 636 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 637 | |
1da177e4 | 638 | atomic_inc(&conn->refcnt); |
2f304d1e | 639 | cancel_delayed_work(&conn->disc_work); |
1da177e4 LT |
640 | } |
641 | ||
76a68ba0 | 642 | static inline void hci_conn_drop(struct hci_conn *conn) |
1da177e4 | 643 | { |
71becf0c | 644 | BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
38b3fef1 | 645 | |
1da177e4 | 646 | if (atomic_dec_and_test(&conn->refcnt)) { |
04837f64 | 647 | unsigned long timeo; |
716e4ab5 AE |
648 | |
649 | switch (conn->type) { | |
650 | case ACL_LINK: | |
651 | case LE_LINK: | |
04837f64 | 652 | del_timer(&conn->idle_timer); |
6ac59344 | 653 | if (conn->state == BT_CONNECTED) { |
5f246e89 | 654 | timeo = conn->disc_timeout; |
6ac59344 | 655 | if (!conn->out) |
052b30b0 | 656 | timeo *= 2; |
5a9d0a3f | 657 | } else { |
6ac59344 | 658 | timeo = msecs_to_jiffies(10); |
5a9d0a3f | 659 | } |
716e4ab5 AE |
660 | break; |
661 | ||
662 | case AMP_LINK: | |
663 | timeo = conn->disc_timeout; | |
664 | break; | |
665 | ||
666 | default: | |
04837f64 | 667 | timeo = msecs_to_jiffies(10); |
716e4ab5 | 668 | break; |
5a9d0a3f | 669 | } |
716e4ab5 | 670 | |
2f304d1e | 671 | cancel_delayed_work(&conn->disc_work); |
19c40e3b | 672 | queue_delayed_work(conn->hdev->workqueue, |
716e4ab5 | 673 | &conn->disc_work, timeo); |
1da177e4 LT |
674 | } |
675 | } | |
676 | ||
1da177e4 | 677 | /* ----- HCI Devices ----- */ |
dc946bd8 | 678 | static inline void hci_dev_put(struct hci_dev *d) |
1da177e4 | 679 | { |
376261ae AE |
680 | BT_DBG("%s orig refcnt %d", d->name, |
681 | atomic_read(&d->dev.kobj.kref.refcount)); | |
682 | ||
4c724c71 | 683 | put_device(&d->dev); |
1da177e4 LT |
684 | } |
685 | ||
dc946bd8 | 686 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
1da177e4 | 687 | { |
376261ae AE |
688 | BT_DBG("%s orig refcnt %d", d->name, |
689 | atomic_read(&d->dev.kobj.kref.refcount)); | |
690 | ||
4c724c71 | 691 | get_device(&d->dev); |
1da177e4 LT |
692 | return d; |
693 | } | |
694 | ||
09fd0de5 GP |
695 | #define hci_dev_lock(d) mutex_lock(&d->lock) |
696 | #define hci_dev_unlock(d) mutex_unlock(&d->lock) | |
1da177e4 | 697 | |
aa2b86d7 | 698 | #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
3dc07322 | 699 | #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
aa2b86d7 | 700 | |
155961e8 DH |
701 | static inline void *hci_get_drvdata(struct hci_dev *hdev) |
702 | { | |
703 | return dev_get_drvdata(&hdev->dev); | |
704 | } | |
705 | ||
706 | static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) | |
707 | { | |
708 | dev_set_drvdata(&hdev->dev, data); | |
709 | } | |
710 | ||
1da177e4 | 711 | struct hci_dev *hci_dev_get(int index); |
0c0afedf | 712 | struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); |
1da177e4 LT |
713 | |
714 | struct hci_dev *hci_alloc_dev(void); | |
715 | void hci_free_dev(struct hci_dev *hdev); | |
716 | int hci_register_dev(struct hci_dev *hdev); | |
59735631 | 717 | void hci_unregister_dev(struct hci_dev *hdev); |
1da177e4 LT |
718 | int hci_suspend_dev(struct hci_dev *hdev); |
719 | int hci_resume_dev(struct hci_dev *hdev); | |
720 | int hci_dev_open(__u16 dev); | |
721 | int hci_dev_close(__u16 dev); | |
722 | int hci_dev_reset(__u16 dev); | |
723 | int hci_dev_reset_stat(__u16 dev); | |
724 | int hci_dev_cmd(unsigned int cmd, void __user *arg); | |
725 | int hci_get_dev_list(void __user *arg); | |
726 | int hci_get_dev_info(void __user *arg); | |
727 | int hci_get_conn_list(void __user *arg); | |
728 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); | |
40be492f | 729 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
1da177e4 LT |
730 | int hci_inquiry(void __user *arg); |
731 | ||
c3c7ea65 GP |
732 | struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, |
733 | bdaddr_t *bdaddr); | |
f0358568 | 734 | int hci_blacklist_clear(struct hci_dev *hdev); |
88c1fe4b JH |
735 | int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
736 | int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
f0358568 | 737 | |
2aeb9a1a JH |
738 | int hci_uuids_clear(struct hci_dev *hdev); |
739 | ||
55ed8ca1 JH |
740 | int hci_link_keys_clear(struct hci_dev *hdev); |
741 | struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
d25e28ab | 742 | int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, |
04124681 | 743 | bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); |
c9839a11 VCG |
744 | struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]); |
745 | int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, | |
9a006657 AE |
746 | int new_key, u8 authenticated, u8 tk[16], u8 enc_size, |
747 | __le16 ediv, u8 rand[8]); | |
c9839a11 | 748 | struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 749 | u8 addr_type); |
b899efaf | 750 | int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr); |
b899efaf | 751 | int hci_smp_ltks_clear(struct hci_dev *hdev); |
55ed8ca1 JH |
752 | int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
753 | ||
2763eda6 SJ |
754 | int hci_remote_oob_data_clear(struct hci_dev *hdev); |
755 | struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, | |
756 | bdaddr_t *bdaddr); | |
757 | int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, | |
758 | u8 *randomizer); | |
759 | int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); | |
760 | ||
1da177e4 LT |
761 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
762 | ||
e1a26170 | 763 | int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); |
ef222013 | 764 | int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); |
99811510 | 765 | int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); |
ef222013 | 766 | |
0ac7e700 | 767 | void hci_init_sysfs(struct hci_dev *hdev); |
ce242970 DH |
768 | int hci_add_sysfs(struct hci_dev *hdev); |
769 | void hci_del_sysfs(struct hci_dev *hdev); | |
a67e899c | 770 | void hci_conn_init_sysfs(struct hci_conn *conn); |
b219e3ac MH |
771 | void hci_conn_add_sysfs(struct hci_conn *conn); |
772 | void hci_conn_del_sysfs(struct hci_conn *conn); | |
1da177e4 | 773 | |
6935e0f5 | 774 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
1da177e4 LT |
775 | |
776 | /* ----- LMP capabilities ----- */ | |
cad718ed JH |
777 | #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) |
778 | #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) | |
779 | #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) | |
780 | #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) | |
781 | #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) | |
782 | #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) | |
783 | #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) | |
784 | #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) | |
785 | #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) | |
786 | #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) | |
787 | #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) | |
788 | #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) | |
789 | #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) | |
790 | #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) | |
791 | #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) | |
792 | #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) | |
793 | #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) | |
794 | #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) | |
07a5c61e | 795 | #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) |
1da177e4 | 796 | |
eead27da | 797 | /* ----- Extended LMP capabilities ----- */ |
cad718ed JH |
798 | #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) |
799 | #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) | |
800 | #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) | |
eead27da | 801 | |
1da177e4 | 802 | /* ----- HCI protocols ----- */ |
20714bfe FD |
803 | #define HCI_PROTO_DEFER 0x01 |
804 | ||
5a9d0a3f | 805 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
20714bfe | 806 | __u8 type, __u8 *flags) |
1da177e4 | 807 | { |
686ebf28 UF |
808 | switch (type) { |
809 | case ACL_LINK: | |
810 | return l2cap_connect_ind(hdev, bdaddr); | |
1da177e4 | 811 | |
686ebf28 UF |
812 | case SCO_LINK: |
813 | case ESCO_LINK: | |
20714bfe | 814 | return sco_connect_ind(hdev, bdaddr, flags); |
1da177e4 | 815 | |
686ebf28 UF |
816 | default: |
817 | BT_ERR("unknown link type %d", type); | |
818 | return -EINVAL; | |
819 | } | |
1da177e4 LT |
820 | } |
821 | ||
822 | static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) | |
823 | { | |
686ebf28 UF |
824 | switch (conn->type) { |
825 | case ACL_LINK: | |
826 | case LE_LINK: | |
827 | l2cap_connect_cfm(conn, status); | |
828 | break; | |
1da177e4 | 829 | |
686ebf28 UF |
830 | case SCO_LINK: |
831 | case ESCO_LINK: | |
832 | sco_connect_cfm(conn, status); | |
833 | break; | |
1da177e4 | 834 | |
686ebf28 UF |
835 | default: |
836 | BT_ERR("unknown link type %d", conn->type); | |
837 | break; | |
838 | } | |
e9a416b5 JH |
839 | |
840 | if (conn->connect_cfm_cb) | |
841 | conn->connect_cfm_cb(conn, status); | |
1da177e4 LT |
842 | } |
843 | ||
2950f21a | 844 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
1da177e4 | 845 | { |
686ebf28 UF |
846 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
847 | return HCI_ERROR_REMOTE_USER_TERM; | |
1da177e4 | 848 | |
686ebf28 | 849 | return l2cap_disconn_ind(conn); |
2950f21a MH |
850 | } |
851 | ||
852 | static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) | |
853 | { | |
686ebf28 UF |
854 | switch (conn->type) { |
855 | case ACL_LINK: | |
856 | case LE_LINK: | |
857 | l2cap_disconn_cfm(conn, reason); | |
858 | break; | |
2950f21a | 859 | |
686ebf28 UF |
860 | case SCO_LINK: |
861 | case ESCO_LINK: | |
862 | sco_disconn_cfm(conn, reason); | |
863 | break; | |
2950f21a | 864 | |
bd1eb66b AE |
865 | /* L2CAP would be handled for BREDR chan */ |
866 | case AMP_LINK: | |
867 | break; | |
868 | ||
686ebf28 UF |
869 | default: |
870 | BT_ERR("unknown link type %d", conn->type); | |
871 | break; | |
872 | } | |
e9a416b5 JH |
873 | |
874 | if (conn->disconn_cfm_cb) | |
875 | conn->disconn_cfm_cb(conn, reason); | |
1da177e4 LT |
876 | } |
877 | ||
878 | static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) | |
879 | { | |
8c1b2355 MH |
880 | __u8 encrypt; |
881 | ||
686ebf28 UF |
882 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
883 | return; | |
884 | ||
51a8efd7 | 885 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
886 | return; |
887 | ||
888 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
686ebf28 | 889 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
890 | |
891 | if (conn->security_cfm_cb) | |
892 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
893 | } |
894 | ||
5a9d0a3f WR |
895 | static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, |
896 | __u8 encrypt) | |
1da177e4 | 897 | { |
686ebf28 UF |
898 | if (conn->type != ACL_LINK && conn->type != LE_LINK) |
899 | return; | |
1da177e4 | 900 | |
686ebf28 | 901 | l2cap_security_cfm(conn, status, encrypt); |
e9a416b5 JH |
902 | |
903 | if (conn->security_cfm_cb) | |
904 | conn->security_cfm_cb(conn, status); | |
1da177e4 LT |
905 | } |
906 | ||
1da177e4 LT |
907 | /* ----- HCI callbacks ----- */ |
908 | struct hci_cb { | |
909 | struct list_head list; | |
910 | ||
911 | char *name; | |
912 | ||
5a9d0a3f WR |
913 | void (*security_cfm) (struct hci_conn *conn, __u8 status, |
914 | __u8 encrypt); | |
1da177e4 LT |
915 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
916 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); | |
917 | }; | |
918 | ||
919 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) | |
920 | { | |
711584ea | 921 | struct hci_cb *cb; |
8c1b2355 | 922 | __u8 encrypt; |
1da177e4 LT |
923 | |
924 | hci_proto_auth_cfm(conn, status); | |
925 | ||
51a8efd7 | 926 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
8c1b2355 MH |
927 | return; |
928 | ||
929 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; | |
930 | ||
f20d09d5 | 931 | read_lock(&hci_cb_list_lock); |
711584ea | 932 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
933 | if (cb->security_cfm) |
934 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 935 | } |
f20d09d5 | 936 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
937 | } |
938 | ||
5a9d0a3f WR |
939 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, |
940 | __u8 encrypt) | |
1da177e4 | 941 | { |
711584ea | 942 | struct hci_cb *cb; |
1da177e4 | 943 | |
435fef20 MH |
944 | if (conn->sec_level == BT_SECURITY_SDP) |
945 | conn->sec_level = BT_SECURITY_LOW; | |
946 | ||
88167aed VCG |
947 | if (conn->pending_sec_level > conn->sec_level) |
948 | conn->sec_level = conn->pending_sec_level; | |
949 | ||
9719f8af | 950 | hci_proto_encrypt_cfm(conn, status, encrypt); |
1da177e4 | 951 | |
f20d09d5 | 952 | read_lock(&hci_cb_list_lock); |
711584ea | 953 | list_for_each_entry(cb, &hci_cb_list, list) { |
8c1b2355 MH |
954 | if (cb->security_cfm) |
955 | cb->security_cfm(conn, status, encrypt); | |
1da177e4 | 956 | } |
f20d09d5 | 957 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
958 | } |
959 | ||
960 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) | |
961 | { | |
711584ea | 962 | struct hci_cb *cb; |
1da177e4 | 963 | |
f20d09d5 | 964 | read_lock(&hci_cb_list_lock); |
711584ea | 965 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
966 | if (cb->key_change_cfm) |
967 | cb->key_change_cfm(conn, status); | |
968 | } | |
f20d09d5 | 969 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
970 | } |
971 | ||
5a9d0a3f WR |
972 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
973 | __u8 role) | |
1da177e4 | 974 | { |
711584ea | 975 | struct hci_cb *cb; |
1da177e4 | 976 | |
f20d09d5 | 977 | read_lock(&hci_cb_list_lock); |
711584ea | 978 | list_for_each_entry(cb, &hci_cb_list, list) { |
1da177e4 LT |
979 | if (cb->role_switch_cfm) |
980 | cb->role_switch_cfm(conn, status, role); | |
981 | } | |
f20d09d5 | 982 | read_unlock(&hci_cb_list_lock); |
1da177e4 LT |
983 | } |
984 | ||
6759a675 JH |
985 | static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) |
986 | { | |
84d9d071 | 987 | size_t parsed = 0; |
6759a675 | 988 | |
6c0c331e JH |
989 | if (data_len < 2) |
990 | return false; | |
991 | ||
84d9d071 JH |
992 | while (parsed < data_len - 1) { |
993 | u8 field_len = data[0]; | |
6759a675 JH |
994 | |
995 | if (field_len == 0) | |
996 | break; | |
997 | ||
998 | parsed += field_len + 1; | |
999 | ||
1000 | if (parsed > data_len) | |
1001 | break; | |
1002 | ||
1003 | if (data[1] == type) | |
1004 | return true; | |
1005 | ||
1006 | data += field_len + 1; | |
1007 | } | |
1008 | ||
1009 | return false; | |
1010 | } | |
1011 | ||
1da177e4 LT |
1012 | int hci_register_cb(struct hci_cb *hcb); |
1013 | int hci_unregister_cb(struct hci_cb *hcb); | |
1014 | ||
3119ae95 JH |
1015 | struct hci_request { |
1016 | struct hci_dev *hdev; | |
1017 | struct sk_buff_head cmd_q; | |
5d73e034 AG |
1018 | |
1019 | /* If something goes wrong when building the HCI request, the error | |
1020 | * value is stored in this field. | |
1021 | */ | |
1022 | int err; | |
3119ae95 JH |
1023 | }; |
1024 | ||
1025 | void hci_req_init(struct hci_request *req, struct hci_dev *hdev); | |
1026 | int hci_req_run(struct hci_request *req, hci_req_complete_t complete); | |
07dc93dd JH |
1027 | void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, |
1028 | const void *param); | |
1029 | void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, | |
1030 | const void *param, u8 event); | |
9238f36a | 1031 | void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); |
3119ae95 | 1032 | |
75e84b7c | 1033 | struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1034 | const void *param, u32 timeout); |
7b1abbbe | 1035 | struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, |
07dc93dd | 1036 | const void *param, u8 event, u32 timeout); |
75e84b7c | 1037 | |
07dc93dd JH |
1038 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, |
1039 | const void *param); | |
73d80deb | 1040 | void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
0d861d8b | 1041 | void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
1da177e4 | 1042 | |
a9de9248 | 1043 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
1da177e4 | 1044 | |
1da177e4 | 1045 | /* ----- HCI Sockets ----- */ |
470fe1b5 MH |
1046 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
1047 | void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); | |
cd82e61c | 1048 | void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
1da177e4 | 1049 | |
040030ef MH |
1050 | void hci_sock_dev_event(struct hci_dev *hdev, int event); |
1051 | ||
0381101f | 1052 | /* Management interface */ |
591f47f3 AG |
1053 | #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
1054 | #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ | |
1055 | BIT(BDADDR_LE_RANDOM)) | |
1056 | #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ | |
1057 | BIT(BDADDR_LE_PUBLIC) | \ | |
1058 | BIT(BDADDR_LE_RANDOM)) | |
f39799f5 | 1059 | |
0d8cc935 AG |
1060 | /* These LE scan and inquiry parameters were chosen according to LE General |
1061 | * Discovery Procedure specification. | |
1062 | */ | |
1063 | #define DISCOV_LE_SCAN_WIN 0x12 | |
1064 | #define DISCOV_LE_SCAN_INT 0x12 | |
1065 | #define DISCOV_LE_TIMEOUT msecs_to_jiffies(10240) | |
1066 | #define DISCOV_INTERLEAVED_TIMEOUT msecs_to_jiffies(5120) | |
1067 | #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 | |
1068 | #define DISCOV_BREDR_INQUIRY_LEN 0x08 | |
1069 | ||
0381101f | 1070 | int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); |
bf6b56db MH |
1071 | void mgmt_index_added(struct hci_dev *hdev); |
1072 | void mgmt_index_removed(struct hci_dev *hdev); | |
3eec705e | 1073 | void mgmt_set_powered_failed(struct hci_dev *hdev, int err); |
744cf19e | 1074 | int mgmt_powered(struct hci_dev *hdev, u8 powered); |
d1967ff8 | 1075 | void mgmt_discoverable_timeout(struct hci_dev *hdev); |
86a75645 | 1076 | void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); |
a330916c | 1077 | void mgmt_connectable(struct hci_dev *hdev, u8 connectable); |
4796e8af | 1078 | void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); |
dc4a5ee2 MH |
1079 | void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, |
1080 | bool persistent); | |
ecd90ae7 MH |
1081 | void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1082 | u8 addr_type, u32 flags, u8 *name, u8 name_len, | |
1083 | u8 *dev_class); | |
9b80ec5e MH |
1084 | void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1085 | u8 link_type, u8 addr_type, u8 reason); | |
7892924c MH |
1086 | void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1087 | u8 link_type, u8 addr_type, u8 status); | |
445608d0 MH |
1088 | void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1089 | u8 addr_type, u8 status); | |
ce0e4a0d | 1090 | void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
e669cf80 MH |
1091 | void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1092 | u8 status); | |
3eb38528 MH |
1093 | void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1094 | u8 status); | |
744cf19e | 1095 | int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 GP |
1096 | u8 link_type, u8 addr_type, __le32 value, |
1097 | u8 confirm_hint); | |
744cf19e | 1098 | int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1099 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1100 | int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1101 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1102 | int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1103 | u8 link_type, u8 addr_type); |
604086b7 | 1104 | int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1105 | u8 link_type, u8 addr_type, u8 status); |
272d90df | 1106 | int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
04124681 | 1107 | u8 link_type, u8 addr_type, u8 status); |
92a25256 JH |
1108 | int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, |
1109 | u8 link_type, u8 addr_type, u32 passkey, | |
1110 | u8 entered); | |
e546099c MH |
1111 | void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1112 | u8 addr_type, u8 status); | |
464996ae | 1113 | void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
c0ecddc2 | 1114 | int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); |
7f9a903c | 1115 | int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
04124681 | 1116 | u8 status); |
744cf19e JH |
1117 | int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
1118 | int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, | |
04124681 | 1119 | u8 *randomizer, u8 status); |
901801b9 MH |
1120 | void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1121 | u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, | |
1122 | u8 ssp, u8 *eir, u16 eir_len); | |
9cf12aee MH |
1123 | void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
1124 | u8 addr_type, s8 rssi, u8 *name, u8 name_len); | |
2f1e063b | 1125 | void mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
88c1fe4b JH |
1126 | int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
1127 | int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); | |
346af67b | 1128 | int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent); |
5976e608 | 1129 | void mgmt_reenable_advertising(struct hci_dev *hdev); |
346af67b | 1130 | |
1da177e4 LT |
1131 | /* HCI info for socket */ |
1132 | #define hci_pi(sk) ((struct hci_pinfo *) sk) | |
1133 | ||
1134 | struct hci_pinfo { | |
1135 | struct bt_sock bt; | |
1136 | struct hci_dev *hdev; | |
1137 | struct hci_filter filter; | |
1138 | __u32 cmsg_mask; | |
c02178d2 | 1139 | unsigned short channel; |
1da177e4 LT |
1140 | }; |
1141 | ||
1142 | /* HCI security filter */ | |
1143 | #define HCI_SFLT_MAX_OGF 5 | |
1144 | ||
1145 | struct hci_sec_filter { | |
1146 | __u32 type_mask; | |
1147 | __u32 event_mask[2]; | |
1148 | __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; | |
1149 | }; | |
1150 | ||
1151 | /* ----- HCI requests ----- */ | |
1152 | #define HCI_REQ_DONE 0 | |
1153 | #define HCI_REQ_PEND 1 | |
1154 | #define HCI_REQ_CANCELED 2 | |
1155 | ||
a6a67efd TG |
1156 | #define hci_req_lock(d) mutex_lock(&d->req_lock) |
1157 | #define hci_req_unlock(d) mutex_unlock(&d->req_lock) | |
1da177e4 | 1158 | |
2ce603eb CT |
1159 | void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, |
1160 | u16 latency, u16 to_multiplier); | |
a7a595f6 VCG |
1161 | void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], |
1162 | __u8 ltk[16]); | |
2519a1fc | 1163 | |
5d4d62f6 FD |
1164 | #define SCO_AIRMODE_MASK 0x0003 |
1165 | #define SCO_AIRMODE_CVSD 0x0000 | |
1166 | #define SCO_AIRMODE_TRANSP 0x0003 | |
1167 | ||
1da177e4 | 1168 | #endif /* __HCI_CORE_H */ |