~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

TOMOYO Linux Cross Reference
Linux/include/net/bluetooth/hci_core.h

Version: ~ [ linux-5.5-rc7 ] ~ [ linux-5.4.13 ] ~ [ linux-5.3.18 ] ~ [ linux-5.2.21 ] ~ [ linux-5.1.21 ] ~ [ linux-5.0.21 ] ~ [ linux-4.20.17 ] ~ [ linux-4.19.97 ] ~ [ linux-4.18.20 ] ~ [ linux-4.17.19 ] ~ [ linux-4.16.18 ] ~ [ linux-4.15.18 ] ~ [ linux-4.14.166 ] ~ [ linux-4.13.16 ] ~ [ linux-4.12.14 ] ~ [ linux-4.11.12 ] ~ [ linux-4.10.17 ] ~ [ linux-4.9.210 ] ~ [ linux-4.8.17 ] ~ [ linux-4.7.10 ] ~ [ linux-4.6.7 ] ~ [ linux-4.5.7 ] ~ [ linux-4.4.210 ] ~ [ linux-4.3.6 ] ~ [ linux-4.2.8 ] ~ [ linux-4.1.52 ] ~ [ linux-4.0.9 ] ~ [ linux-3.19.8 ] ~ [ linux-3.18.140 ] ~ [ linux-3.17.8 ] ~ [ linux-3.16.81 ] ~ [ linux-3.15.10 ] ~ [ linux-3.14.79 ] ~ [ linux-3.13.11 ] ~ [ linux-3.12.74 ] ~ [ linux-3.11.10 ] ~ [ linux-3.10.108 ] ~ [ linux-3.9.11 ] ~ [ linux-3.8.13 ] ~ [ linux-3.7.10 ] ~ [ linux-3.6.11 ] ~ [ linux-3.5.7 ] ~ [ linux-3.4.113 ] ~ [ linux-3.3.8 ] ~ [ linux-3.2.102 ] ~ [ linux-3.1.10 ] ~ [ linux-3.0.101 ] ~ [ linux-2.6.32.71 ] ~ [ linux-2.6.0 ] ~ [ linux-2.4.37.11 ] ~ [ unix-v6-master ] ~ [ ccs-tools-1.8.5 ] ~ [ policy-sample ] ~
Architecture: ~ [ i386 ] ~ [ alpha ] ~ [ m68k ] ~ [ mips ] ~ [ ppc ] ~ [ sparc ] ~ [ sparc64 ] ~

  1 /*
  2    BlueZ - Bluetooth protocol stack for Linux
  3    Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
  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
 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
 18    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 19 
 20    ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
 21    COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
 22    SOFTWARE IS DISCLAIMED.
 23 */
 24 
 25 #ifndef __HCI_CORE_H
 26 #define __HCI_CORE_H
 27 
 28 #include <linux/interrupt.h>
 29 #include <net/bluetooth/hci.h>
 30 
 31 /* HCI upper protocols */
 32 #define HCI_PROTO_L2CAP 0
 33 #define HCI_PROTO_SCO   1
 34 
 35 /* HCI Core structures */
 36 struct inquiry_data {
 37         bdaddr_t        bdaddr;
 38         __u8            pscan_rep_mode;
 39         __u8            pscan_period_mode;
 40         __u8            pscan_mode;
 41         __u8            dev_class[3];
 42         __le16          clock_offset;
 43         __s8            rssi;
 44         __u8            ssp_mode;
 45 };
 46 
 47 struct inquiry_entry {
 48         struct inquiry_entry    *next;
 49         __u32                   timestamp;
 50         struct inquiry_data     data;
 51 };
 52 
 53 struct inquiry_cache {
 54         spinlock_t              lock;
 55         __u32                   timestamp;
 56         struct inquiry_entry    *list;
 57 };
 58 
 59 struct hci_conn_hash {
 60         struct list_head list;
 61         spinlock_t       lock;
 62         unsigned int     acl_num;
 63         unsigned int     sco_num;
 64         unsigned int     le_num;
 65 };
 66 
 67 struct bdaddr_list {
 68         struct list_head list;
 69         bdaddr_t bdaddr;
 70 };
 71 
 72 struct bt_uuid {
 73         struct list_head list;
 74         u8 uuid[16];
 75         u8 svc_hint;
 76 };
 77 
 78 struct key_master_id {
 79         __le16 ediv;
 80         u8 rand[8];
 81 } __packed;
 82 
 83 struct link_key_data {
 84         bdaddr_t bdaddr;
 85         u8 type;
 86         u8 val[16];
 87         u8 pin_len;
 88         u8 dlen;
 89         u8 data[0];
 90 } __packed;
 91 
 92 struct link_key {
 93         struct list_head list;
 94         bdaddr_t bdaddr;
 95         u8 type;
 96         u8 val[16];
 97         u8 pin_len;
 98         u8 dlen;
 99         u8 data[0];
100 };
101 
102 struct oob_data {
103         struct list_head list;
104         bdaddr_t bdaddr;
105         u8 hash[16];
106         u8 randomizer[16];
107 };
108 
109 struct adv_entry {
110         struct list_head list;
111         bdaddr_t bdaddr;
112         u8 bdaddr_type;
113 };
114 
115 #define NUM_REASSEMBLY 4
116 struct hci_dev {
117         struct list_head list;
118         spinlock_t      lock;
119         atomic_t        refcnt;
120 
121         char            name[8];
122         unsigned long   flags;
123         __u16           id;
124         __u8            bus;
125         __u8            dev_type;
126         bdaddr_t        bdaddr;
127         __u8            dev_name[HCI_MAX_NAME_LENGTH];
128         __u8            eir[HCI_MAX_EIR_LENGTH];
129         __u8            dev_class[3];
130         __u8            major_class;
131         __u8            minor_class;
132         __u8            features[8];
133         __u8            extfeatures[8];
134         __u8            commands[64];
135         __u8            ssp_mode;
136         __u8            hci_ver;
137         __u16           hci_rev;
138         __u8            lmp_ver;
139         __u16           manufacturer;
140         __le16          lmp_subver;
141         __u16           voice_setting;
142         __u8            io_capability;
143 
144         __u16           pkt_type;
145         __u16           esco_type;
146         __u16           link_policy;
147         __u16           link_mode;
148 
149         __u32           idle_timeout;
150         __u16           sniff_min_interval;
151         __u16           sniff_max_interval;
152 
153         unsigned int    auto_accept_delay;
154 
155         unsigned long   quirks;
156 
157         atomic_t        cmd_cnt;
158         unsigned int    acl_cnt;
159         unsigned int    sco_cnt;
160         unsigned int    le_cnt;
161 
162         unsigned int    acl_mtu;
163         unsigned int    sco_mtu;
164         unsigned int    le_mtu;
165         unsigned int    acl_pkts;
166         unsigned int    sco_pkts;
167         unsigned int    le_pkts;
168 
169         unsigned long   acl_last_tx;
170         unsigned long   sco_last_tx;
171         unsigned long   le_last_tx;
172 
173         struct workqueue_struct *workqueue;
174 
175         struct work_struct      power_on;
176         struct work_struct      power_off;
177         struct timer_list       off_timer;
178 
179         struct timer_list       cmd_timer;
180         struct tasklet_struct   cmd_task;
181         struct tasklet_struct   rx_task;
182         struct tasklet_struct   tx_task;
183 
184         struct sk_buff_head     rx_q;
185         struct sk_buff_head     raw_q;
186         struct sk_buff_head     cmd_q;
187 
188         struct sk_buff          *sent_cmd;
189         struct sk_buff          *reassembly[NUM_REASSEMBLY];
190 
191         struct mutex            req_lock;
192         wait_queue_head_t       req_wait_q;
193         __u32                   req_status;
194         __u32                   req_result;
195 
196         __u16                   init_last_cmd;
197 
198         struct inquiry_cache    inq_cache;
199         struct hci_conn_hash    conn_hash;
200         struct list_head        blacklist;
201 
202         struct list_head        uuids;
203 
204         struct list_head        link_keys;
205 
206         struct list_head        remote_oob_data;
207 
208         struct list_head        adv_entries;
209         struct timer_list       adv_timer;
210 
211         struct hci_dev_stats    stat;
212 
213         struct sk_buff_head     driver_init;
214 
215         void                    *driver_data;
216         void                    *core_data;
217 
218         atomic_t                promisc;
219 
220         struct dentry           *debugfs;
221 
222         struct device           *parent;
223         struct device           dev;
224 
225         struct rfkill           *rfkill;
226 
227         struct module           *owner;
228 
229         int (*open)(struct hci_dev *hdev);
230         int (*close)(struct hci_dev *hdev);
231         int (*flush)(struct hci_dev *hdev);
232         int (*send)(struct sk_buff *skb);
233         void (*destruct)(struct hci_dev *hdev);
234         void (*notify)(struct hci_dev *hdev, unsigned int evt);
235         int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
236 };
237 
238 struct hci_conn {
239         struct list_head list;
240 
241         atomic_t        refcnt;
242 
243         bdaddr_t        dst;
244         __u8            dst_type;
245         __u16           handle;
246         __u16           state;
247         __u8            mode;
248         __u8            type;
249         __u8            out;
250         __u8            attempt;
251         __u8            dev_class[3];
252         __u8            features[8];
253         __u8            ssp_mode;
254         __u16           interval;
255         __u16           pkt_type;
256         __u16           link_policy;
257         __u32           link_mode;
258         __u8            key_type;
259         __u8            auth_type;
260         __u8            sec_level;
261         __u8            pending_sec_level;
262         __u8            pin_length;
263         __u8            enc_key_size;
264         __u8            io_capability;
265         __u8            power_save;
266         __u16           disc_timeout;
267         unsigned long   pend;
268 
269         __u8            remote_cap;
270         __u8            remote_oob;
271         __u8            remote_auth;
272 
273         unsigned int    sent;
274 
275         struct sk_buff_head data_q;
276 
277         struct timer_list disc_timer;
278         struct timer_list idle_timer;
279         struct timer_list auto_accept_timer;
280 
281         struct work_struct work_add;
282         struct work_struct work_del;
283 
284         struct device   dev;
285         atomic_t        devref;
286 
287         struct hci_dev  *hdev;
288         void            *l2cap_data;
289         void            *sco_data;
290 
291         struct hci_conn *link;
292 
293         void (*connect_cfm_cb)  (struct hci_conn *conn, u8 status);
294         void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
295         void (*disconn_cfm_cb)  (struct hci_conn *conn, u8 reason);
296 };
297 
298 extern struct hci_proto *hci_proto[];
299 extern struct list_head hci_dev_list;
300 extern struct list_head hci_cb_list;
301 extern rwlock_t hci_dev_list_lock;
302 extern rwlock_t hci_cb_list_lock;
303 
304 /* ----- Inquiry cache ----- */
305 #define INQUIRY_CACHE_AGE_MAX   (HZ*30)   /* 30 seconds */
306 #define INQUIRY_ENTRY_AGE_MAX   (HZ*60)   /* 60 seconds */
307 
308 #define inquiry_cache_lock(c)           spin_lock(&c->lock)
309 #define inquiry_cache_unlock(c)         spin_unlock(&c->lock)
310 #define inquiry_cache_lock_bh(c)        spin_lock_bh(&c->lock)
311 #define inquiry_cache_unlock_bh(c)      spin_unlock_bh(&c->lock)
312 
313 static inline void inquiry_cache_init(struct hci_dev *hdev)
314 {
315         struct inquiry_cache *c = &hdev->inq_cache;
316         spin_lock_init(&c->lock);
317         c->list = NULL;
318 }
319 
320 static inline int inquiry_cache_empty(struct hci_dev *hdev)
321 {
322         struct inquiry_cache *c = &hdev->inq_cache;
323         return c->list == NULL;
324 }
325 
326 static inline long inquiry_cache_age(struct hci_dev *hdev)
327 {
328         struct inquiry_cache *c = &hdev->inq_cache;
329         return jiffies - c->timestamp;
330 }
331 
332 static inline long inquiry_entry_age(struct inquiry_entry *e)
333 {
334         return jiffies - e->timestamp;
335 }
336 
337 struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
338                                                         bdaddr_t *bdaddr);
339 void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
340 
341 /* ----- HCI Connections ----- */
342 enum {
343         HCI_CONN_AUTH_PEND,
344         HCI_CONN_REAUTH_PEND,
345         HCI_CONN_ENCRYPT_PEND,
346         HCI_CONN_RSWITCH_PEND,
347         HCI_CONN_MODE_CHANGE_PEND,
348         HCI_CONN_SCO_SETUP_PEND,
349         HCI_CONN_LE_SMP_PEND,
350 };
351 
352 static inline void hci_conn_hash_init(struct hci_dev *hdev)
353 {
354         struct hci_conn_hash *h = &hdev->conn_hash;
355         INIT_LIST_HEAD(&h->list);
356         spin_lock_init(&h->lock);
357         h->acl_num = 0;
358         h->sco_num = 0;
359 }
360 
361 static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
362 {
363         struct hci_conn_hash *h = &hdev->conn_hash;
364         list_add(&c->list, &h->list);
365         switch (c->type) {
366         case ACL_LINK:
367                 h->acl_num++;
368                 break;
369         case LE_LINK:
370                 h->le_num++;
371                 break;
372         case SCO_LINK:
373         case ESCO_LINK:
374                 h->sco_num++;
375                 break;
376         }
377 }
378 
379 static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
380 {
381         struct hci_conn_hash *h = &hdev->conn_hash;
382         list_del(&c->list);
383         switch (c->type) {
384         case ACL_LINK:
385                 h->acl_num--;
386                 break;
387         case LE_LINK:
388                 h->le_num--;
389                 break;
390         case SCO_LINK:
391         case ESCO_LINK:
392                 h->sco_num--;
393                 break;
394         }
395 }
396 
397 static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
398 {
399         struct hci_conn_hash *h = &hdev->conn_hash;
400         switch (type) {
401         case ACL_LINK:
402                 return h->acl_num;
403         case LE_LINK:
404                 return h->le_num;
405         case SCO_LINK:
406         case ESCO_LINK:
407                 return h->sco_num;
408         default:
409                 return 0;
410         }
411 }
412 
413 static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
414                                                                 __u16 handle)
415 {
416         struct hci_conn_hash *h = &hdev->conn_hash;
417         struct list_head *p;
418         struct hci_conn  *c;
419 
420         list_for_each(p, &h->list) {
421                 c = list_entry(p, struct hci_conn, list);
422                 if (c->handle == handle)
423                         return c;
424         }
425         return NULL;
426 }
427 
428 static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
429                                                         __u8 type, bdaddr_t *ba)
430 {
431         struct hci_conn_hash *h = &hdev->conn_hash;
432         struct list_head *p;
433         struct hci_conn  *c;
434 
435         list_for_each(p, &h->list) {
436                 c = list_entry(p, struct hci_conn, list);
437                 if (c->type == type && !bacmp(&c->dst, ba))
438                         return c;
439         }
440         return NULL;
441 }
442 
443 static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
444                                                         __u8 type, __u16 state)
445 {
446         struct hci_conn_hash *h = &hdev->conn_hash;
447         struct list_head *p;
448         struct hci_conn  *c;
449 
450         list_for_each(p, &h->list) {
451                 c = list_entry(p, struct hci_conn, list);
452                 if (c->type == type && c->state == state)
453                         return c;
454         }
455         return NULL;
456 }
457 
458 void hci_acl_connect(struct hci_conn *conn);
459 void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
460 void hci_add_sco(struct hci_conn *conn, __u16 handle);
461 void hci_setup_sync(struct hci_conn *conn, __u16 handle);
462 void hci_sco_setup(struct hci_conn *conn, __u8 status);
463 
464 struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
465 int hci_conn_del(struct hci_conn *conn);
466 void hci_conn_hash_flush(struct hci_dev *hdev);
467 void hci_conn_check_pending(struct hci_dev *hdev);
468 
469 struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
470                                                 __u8 sec_level, __u8 auth_type);
471 int hci_conn_check_link_mode(struct hci_conn *conn);
472 int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
473 int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
474 int hci_conn_change_link_key(struct hci_conn *conn);
475 int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
476 
477 void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
478 void hci_conn_enter_sniff_mode(struct hci_conn *conn);
479 
480 void hci_conn_hold_device(struct hci_conn *conn);
481 void hci_conn_put_device(struct hci_conn *conn);
482 
483 static inline void hci_conn_hold(struct hci_conn *conn)
484 {
485         atomic_inc(&conn->refcnt);
486         del_timer(&conn->disc_timer);
487 }
488 
489 static inline void hci_conn_put(struct hci_conn *conn)
490 {
491         if (atomic_dec_and_test(&conn->refcnt)) {
492                 unsigned long timeo;
493                 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
494                         del_timer(&conn->idle_timer);
495                         if (conn->state == BT_CONNECTED) {
496                                 timeo = msecs_to_jiffies(conn->disc_timeout);
497                                 if (!conn->out)
498                                         timeo *= 2;
499                         } else {
500                                 timeo = msecs_to_jiffies(10);
501                         }
502                 } else {
503                         timeo = msecs_to_jiffies(10);
504                 }
505                 mod_timer(&conn->disc_timer, jiffies + timeo);
506         }
507 }
508 
509 /* ----- HCI Devices ----- */
510 static inline void __hci_dev_put(struct hci_dev *d)
511 {
512         if (atomic_dec_and_test(&d->refcnt))
513                 d->destruct(d);
514 }
515 
516 /*
517  * hci_dev_put and hci_dev_hold are macros to avoid dragging all the
518  * overhead of all the modular infrastructure into this header.
519  */
520 #define hci_dev_put(d)          \
521 do {                            \
522         __hci_dev_put(d);       \
523         module_put(d->owner);   \
524 } while (0)
525 
526 static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
527 {
528         atomic_inc(&d->refcnt);
529         return d;
530 }
531 
532 #define hci_dev_hold(d)                                         \
533 ({                                                              \
534         try_module_get(d->owner) ? __hci_dev_hold(d) : NULL;    \
535 })
536 
537 #define hci_dev_lock(d)         spin_lock(&d->lock)
538 #define hci_dev_unlock(d)       spin_unlock(&d->lock)
539 #define hci_dev_lock_bh(d)      spin_lock_bh(&d->lock)
540 #define hci_dev_unlock_bh(d)    spin_unlock_bh(&d->lock)
541 
542 struct hci_dev *hci_dev_get(int index);
543 struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
544 
545 struct hci_dev *hci_alloc_dev(void);
546 void hci_free_dev(struct hci_dev *hdev);
547 int hci_register_dev(struct hci_dev *hdev);
548 int hci_unregister_dev(struct hci_dev *hdev);
549 int hci_suspend_dev(struct hci_dev *hdev);
550 int hci_resume_dev(struct hci_dev *hdev);
551 int hci_dev_open(__u16 dev);
552 int hci_dev_close(__u16 dev);
553 int hci_dev_reset(__u16 dev);
554 int hci_dev_reset_stat(__u16 dev);
555 int hci_dev_cmd(unsigned int cmd, void __user *arg);
556 int hci_get_dev_list(void __user *arg);
557 int hci_get_dev_info(void __user *arg);
558 int hci_get_conn_list(void __user *arg);
559 int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
560 int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
561 int hci_inquiry(void __user *arg);
562 
563 struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
564 int hci_blacklist_clear(struct hci_dev *hdev);
565 int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
566 int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
567 
568 int hci_uuids_clear(struct hci_dev *hdev);
569 
570 int hci_link_keys_clear(struct hci_dev *hdev);
571 struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
572 int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
573                         bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
574 struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
575 struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
576                                         bdaddr_t *bdaddr, u8 type);
577 int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
578                         u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
579 int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
580 
581 int hci_remote_oob_data_clear(struct hci_dev *hdev);
582 struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
583                                                         bdaddr_t *bdaddr);
584 int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
585                                                                 u8 *randomizer);
586 int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
587 
588 #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
589 int hci_adv_entries_clear(struct hci_dev *hdev);
590 struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
591 int hci_add_adv_entry(struct hci_dev *hdev,
592                                         struct hci_ev_le_advertising_info *ev);
593 
594 void hci_del_off_timer(struct hci_dev *hdev);
595 
596 void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
597 
598 int hci_recv_frame(struct sk_buff *skb);
599 int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
600 int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
601 
602 int hci_register_sysfs(struct hci_dev *hdev);
603 void hci_unregister_sysfs(struct hci_dev *hdev);
604 void hci_conn_init_sysfs(struct hci_conn *conn);
605 void hci_conn_add_sysfs(struct hci_conn *conn);
606 void hci_conn_del_sysfs(struct hci_conn *conn);
607 
608 #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
609 
610 /* ----- LMP capabilities ----- */
611 #define lmp_rswitch_capable(dev)   ((dev)->features[0] & LMP_RSWITCH)
612 #define lmp_encrypt_capable(dev)   ((dev)->features[0] & LMP_ENCRYPT)
613 #define lmp_sniff_capable(dev)     ((dev)->features[0] & LMP_SNIFF)
614 #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
615 #define lmp_esco_capable(dev)      ((dev)->features[3] & LMP_ESCO)
616 #define lmp_ssp_capable(dev)       ((dev)->features[6] & LMP_SIMPLE_PAIR)
617 #define lmp_no_flush_capable(dev)  ((dev)->features[6] & LMP_NO_FLUSH)
618 #define lmp_le_capable(dev)        ((dev)->features[4] & LMP_LE)
619 
620 /* ----- Extended LMP capabilities ----- */
621 #define lmp_host_le_capable(dev)   ((dev)->extfeatures[0] & LMP_HOST_LE)
622 
623 /* ----- HCI protocols ----- */
624 struct hci_proto {
625         char            *name;
626         unsigned int    id;
627         unsigned long   flags;
628 
629         void            *priv;
630 
631         int (*connect_ind)      (struct hci_dev *hdev, bdaddr_t *bdaddr,
632                                                                 __u8 type);
633         int (*connect_cfm)      (struct hci_conn *conn, __u8 status);
634         int (*disconn_ind)      (struct hci_conn *conn);
635         int (*disconn_cfm)      (struct hci_conn *conn, __u8 reason);
636         int (*recv_acldata)     (struct hci_conn *conn, struct sk_buff *skb,
637                                                                 __u16 flags);
638         int (*recv_scodata)     (struct hci_conn *conn, struct sk_buff *skb);
639         int (*security_cfm)     (struct hci_conn *conn, __u8 status,
640                                                                 __u8 encrypt);
641 };
642 
643 static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
644                                                                 __u8 type)
645 {
646         register struct hci_proto *hp;
647         int mask = 0;
648 
649         hp = hci_proto[HCI_PROTO_L2CAP];
650         if (hp && hp->connect_ind)
651                 mask |= hp->connect_ind(hdev, bdaddr, type);
652 
653         hp = hci_proto[HCI_PROTO_SCO];
654         if (hp && hp->connect_ind)
655                 mask |= hp->connect_ind(hdev, bdaddr, type);
656 
657         return mask;
658 }
659 
660 static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
661 {
662         register struct hci_proto *hp;
663 
664         hp = hci_proto[HCI_PROTO_L2CAP];
665         if (hp && hp->connect_cfm)
666                 hp->connect_cfm(conn, status);
667 
668         hp = hci_proto[HCI_PROTO_SCO];
669         if (hp && hp->connect_cfm)
670                 hp->connect_cfm(conn, status);
671 
672         if (conn->connect_cfm_cb)
673                 conn->connect_cfm_cb(conn, status);
674 }
675 
676 static inline int hci_proto_disconn_ind(struct hci_conn *conn)
677 {
678         register struct hci_proto *hp;
679         int reason = 0x13;
680 
681         hp = hci_proto[HCI_PROTO_L2CAP];
682         if (hp && hp->disconn_ind)
683                 reason = hp->disconn_ind(conn);
684 
685         hp = hci_proto[HCI_PROTO_SCO];
686         if (hp && hp->disconn_ind)
687                 reason = hp->disconn_ind(conn);
688 
689         return reason;
690 }
691 
692 static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
693 {
694         register struct hci_proto *hp;
695 
696         hp = hci_proto[HCI_PROTO_L2CAP];
697         if (hp && hp->disconn_cfm)
698                 hp->disconn_cfm(conn, reason);
699 
700         hp = hci_proto[HCI_PROTO_SCO];
701         if (hp && hp->disconn_cfm)
702                 hp->disconn_cfm(conn, reason);
703 
704         if (conn->disconn_cfm_cb)
705                 conn->disconn_cfm_cb(conn, reason);
706 }
707 
708 static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
709 {
710         register struct hci_proto *hp;
711         __u8 encrypt;
712 
713         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
714                 return;
715 
716         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
717 
718         hp = hci_proto[HCI_PROTO_L2CAP];
719         if (hp && hp->security_cfm)
720                 hp->security_cfm(conn, status, encrypt);
721 
722         hp = hci_proto[HCI_PROTO_SCO];
723         if (hp && hp->security_cfm)
724                 hp->security_cfm(conn, status, encrypt);
725 
726         if (conn->security_cfm_cb)
727                 conn->security_cfm_cb(conn, status);
728 }
729 
730 static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
731                                                                 __u8 encrypt)
732 {
733         register struct hci_proto *hp;
734 
735         hp = hci_proto[HCI_PROTO_L2CAP];
736         if (hp && hp->security_cfm)
737                 hp->security_cfm(conn, status, encrypt);
738 
739         hp = hci_proto[HCI_PROTO_SCO];
740         if (hp && hp->security_cfm)
741                 hp->security_cfm(conn, status, encrypt);
742 
743         if (conn->security_cfm_cb)
744                 conn->security_cfm_cb(conn, status);
745 }
746 
747 int hci_register_proto(struct hci_proto *hproto);
748 int hci_unregister_proto(struct hci_proto *hproto);
749 
750 /* ----- HCI callbacks ----- */
751 struct hci_cb {
752         struct list_head list;
753 
754         char *name;
755 
756         void (*security_cfm)    (struct hci_conn *conn, __u8 status,
757                                                                 __u8 encrypt);
758         void (*key_change_cfm)  (struct hci_conn *conn, __u8 status);
759         void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
760 };
761 
762 static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
763 {
764         struct list_head *p;
765         __u8 encrypt;
766 
767         hci_proto_auth_cfm(conn, status);
768 
769         if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
770                 return;
771 
772         encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
773 
774         read_lock_bh(&hci_cb_list_lock);
775         list_for_each(p, &hci_cb_list) {
776                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
777                 if (cb->security_cfm)
778                         cb->security_cfm(conn, status, encrypt);
779         }
780         read_unlock_bh(&hci_cb_list_lock);
781 }
782 
783 static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
784                                                                 __u8 encrypt)
785 {
786         struct list_head *p;
787 
788         if (conn->sec_level == BT_SECURITY_SDP)
789                 conn->sec_level = BT_SECURITY_LOW;
790 
791         if (conn->pending_sec_level > conn->sec_level)
792                 conn->sec_level = conn->pending_sec_level;
793 
794         hci_proto_encrypt_cfm(conn, status, encrypt);
795 
796         read_lock_bh(&hci_cb_list_lock);
797         list_for_each(p, &hci_cb_list) {
798                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
799                 if (cb->security_cfm)
800                         cb->security_cfm(conn, status, encrypt);
801         }
802         read_unlock_bh(&hci_cb_list_lock);
803 }
804 
805 static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
806 {
807         struct list_head *p;
808 
809         read_lock_bh(&hci_cb_list_lock);
810         list_for_each(p, &hci_cb_list) {
811                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
812                 if (cb->key_change_cfm)
813                         cb->key_change_cfm(conn, status);
814         }
815         read_unlock_bh(&hci_cb_list_lock);
816 }
817 
818 static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
819                                                                 __u8 role)
820 {
821         struct list_head *p;
822 
823         read_lock_bh(&hci_cb_list_lock);
824         list_for_each(p, &hci_cb_list) {
825                 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
826                 if (cb->role_switch_cfm)
827                         cb->role_switch_cfm(conn, status, role);
828         }
829         read_unlock_bh(&hci_cb_list_lock);
830 }
831 
832 int hci_register_cb(struct hci_cb *hcb);
833 int hci_unregister_cb(struct hci_cb *hcb);
834 
835 int hci_register_notifier(struct notifier_block *nb);
836 int hci_unregister_notifier(struct notifier_block *nb);
837 
838 int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
839 void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags);
840 void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
841 
842 void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
843 
844 void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
845 
846 /* ----- HCI Sockets ----- */
847 void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
848                                                         struct sock *skip_sk);
849 
850 /* Management interface */
851 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
852 int mgmt_index_added(u16 index);
853 int mgmt_index_removed(u16 index);
854 int mgmt_powered(u16 index, u8 powered);
855 int mgmt_discoverable(u16 index, u8 discoverable);
856 int mgmt_connectable(u16 index, u8 connectable);
857 int mgmt_new_key(u16 index, struct link_key *key, u8 persistent);
858 int mgmt_connected(u16 index, bdaddr_t *bdaddr, u8 link_type);
859 int mgmt_disconnected(u16 index, bdaddr_t *bdaddr);
860 int mgmt_disconnect_failed(u16 index);
861 int mgmt_connect_failed(u16 index, bdaddr_t *bdaddr, u8 status);
862 int mgmt_pin_code_request(u16 index, bdaddr_t *bdaddr, u8 secure);
863 int mgmt_pin_code_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
864 int mgmt_pin_code_neg_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
865 int mgmt_user_confirm_request(u16 index, bdaddr_t *bdaddr, __le32 value,
866                                                         u8 confirm_hint);
867 int mgmt_user_confirm_reply_complete(u16 index, bdaddr_t *bdaddr, u8 status);
868 int mgmt_user_confirm_neg_reply_complete(u16 index, bdaddr_t *bdaddr,
869                                                                 u8 status);
870 int mgmt_auth_failed(u16 index, bdaddr_t *bdaddr, u8 status);
871 int mgmt_set_local_name_complete(u16 index, u8 *name, u8 status);
872 int mgmt_read_local_oob_data_reply_complete(u16 index, u8 *hash, u8 *randomizer,
873                                                                 u8 status);
874 int mgmt_device_found(u16 index, bdaddr_t *bdaddr, u8 *dev_class, s8 rssi,
875                                                                 u8 *eir);
876 int mgmt_remote_name(u16 index, bdaddr_t *bdaddr, u8 *name);
877 int mgmt_discovering(u16 index, u8 discovering);
878 int mgmt_device_blocked(u16 index, bdaddr_t *bdaddr);
879 int mgmt_device_unblocked(u16 index, bdaddr_t *bdaddr);
880 
881 /* HCI info for socket */
882 #define hci_pi(sk) ((struct hci_pinfo *) sk)
883 
884 struct hci_pinfo {
885         struct bt_sock    bt;
886         struct hci_dev    *hdev;
887         struct hci_filter filter;
888         __u32             cmsg_mask;
889         unsigned short   channel;
890 };
891 
892 /* HCI security filter */
893 #define HCI_SFLT_MAX_OGF  5
894 
895 struct hci_sec_filter {
896         __u32 type_mask;
897         __u32 event_mask[2];
898         __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
899 };
900 
901 /* ----- HCI requests ----- */
902 #define HCI_REQ_DONE      0
903 #define HCI_REQ_PEND      1
904 #define HCI_REQ_CANCELED  2
905 
906 #define hci_req_lock(d)         mutex_lock(&d->req_lock)
907 #define hci_req_unlock(d)       mutex_unlock(&d->req_lock)
908 
909 void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
910 
911 void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
912                                         u16 latency, u16 to_multiplier);
913 void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
914                                                         __u8 ltk[16]);
915 void hci_le_ltk_neg_reply(struct hci_conn *conn);
916 
917 #endif /* __HCI_CORE_H */
918 

~ [ source navigation ] ~ [ diff markup ] ~ [ identifier search ] ~

kernel.org | git.kernel.org | LWN.net | Project Home | Wiki (Japanese) | Wiki (English) | SVN repository | Mail admin

Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.

osdn.jp