blob: 0f35a3900e16af790b891136acabf4aebb82d541 [file] [log] [blame]
Ron Shaffer04fafe42010-05-28 11:53:45 -04001/*
Linus Torvalds1da177e2005-04-16 15:20:36 -07002 BlueZ - Bluetooth protocol stack for Linux
Ron Shaffer2d0a0342010-05-28 11:53:46 -04003 Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved.
Linus Torvalds1da177e2005-04-16 15:20:36 -07004
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
Ron Shaffer04fafe42010-05-28 11:53:45 -040015 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
Linus Torvalds1da177e2005-04-16 15:20:36 -070018 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
19
Ron Shaffer04fafe42010-05-28 11:53:45 -040020 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
21 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
Linus Torvalds1da177e2005-04-16 15:20:36 -070022 SOFTWARE IS DISCLAIMED.
23*/
24
25#ifndef __HCI_CORE_H
26#define __HCI_CORE_H
27
Alexey Dobriyana6b7a402011-06-06 10:43:46 +000028#include <linux/interrupt.h>
Linus Torvalds1da177e2005-04-16 15:20:36 -070029#include <net/bluetooth/hci.h>
30
31/* HCI upper protocols */
32#define HCI_PROTO_L2CAP 0
33#define HCI_PROTO_SCO 1
34
Luiz Augusto von Dentz5e59b792011-11-01 10:58:57 +020035/* HCI priority */
36#define HCI_PRIO_MAX 7
37
Linus Torvalds1da177e2005-04-16 15:20:36 -070038/* HCI Core structures */
Linus Torvalds1da177e2005-04-16 15:20:36 -070039struct inquiry_data {
40 bdaddr_t bdaddr;
41 __u8 pscan_rep_mode;
42 __u8 pscan_period_mode;
43 __u8 pscan_mode;
44 __u8 dev_class[3];
Marcel Holtmann1ebb9252005-11-08 09:57:21 -080045 __le16 clock_offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -070046 __s8 rssi;
Marcel Holtmann41a96212008-07-14 20:13:48 +020047 __u8 ssp_mode;
Linus Torvalds1da177e2005-04-16 15:20:36 -070048};
49
50struct inquiry_entry {
Andrei Emeltchenko70f230202010-12-01 16:58:25 +020051 struct inquiry_entry *next;
Linus Torvalds1da177e2005-04-16 15:20:36 -070052 __u32 timestamp;
53 struct inquiry_data data;
54};
55
56struct inquiry_cache {
Andrei Emeltchenko70f230202010-12-01 16:58:25 +020057 spinlock_t lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -070058 __u32 timestamp;
Andrei Emeltchenko70f230202010-12-01 16:58:25 +020059 struct inquiry_entry *list;
Linus Torvalds1da177e2005-04-16 15:20:36 -070060};
61
62struct hci_conn_hash {
63 struct list_head list;
64 spinlock_t lock;
65 unsigned int acl_num;
66 unsigned int sco_num;
Ville Tervofcd89c02011-02-10 22:38:47 -030067 unsigned int le_num;
Linus Torvalds1da177e2005-04-16 15:20:36 -070068};
69
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +020070struct hci_chan_hash {
71 struct list_head list;
72 spinlock_t lock;
73 unsigned int num;
74};
75
Johan Hedbergf0358562010-05-18 13:20:32 +020076struct bdaddr_list {
77 struct list_head list;
78 bdaddr_t bdaddr;
79};
Johan Hedberg2aeb9a12011-01-04 12:08:51 +020080
81struct bt_uuid {
82 struct list_head list;
83 u8 uuid[16];
Johan Hedberg1aff6f02011-01-13 21:56:52 +020084 u8 svc_hint;
Johan Hedberg2aeb9a12011-01-04 12:08:51 +020085};
86
Vinicius Costa Gomes34918cd2011-07-07 18:59:35 -030087struct key_master_id {
88 __le16 ediv;
89 u8 rand[8];
90} __packed;
91
92struct link_key_data {
93 bdaddr_t bdaddr;
94 u8 type;
95 u8 val[16];
96 u8 pin_len;
97 u8 dlen;
98 u8 data[0];
99} __packed;
100
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200101struct link_key {
102 struct list_head list;
103 bdaddr_t bdaddr;
104 u8 type;
105 u8 val[16];
106 u8 pin_len;
Vinicius Costa Gomes34918cd2011-07-07 18:59:35 -0300107 u8 dlen;
108 u8 data[0];
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200109};
110
Szymon Janc2763eda2011-03-22 13:12:22 +0100111struct oob_data {
112 struct list_head list;
113 bdaddr_t bdaddr;
114 u8 hash[16];
115 u8 randomizer[16];
116};
117
Andre Guedes76c86862011-05-26 16:23:50 -0300118struct adv_entry {
119 struct list_head list;
120 bdaddr_t bdaddr;
121 u8 bdaddr_type;
122};
123
Suraj Sumangalacd4c5392010-07-14 13:02:16 +0530124#define NUM_REASSEMBLY 4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700125struct hci_dev {
126 struct list_head list;
127 spinlock_t lock;
128 atomic_t refcnt;
129
130 char name[8];
131 unsigned long flags;
132 __u16 id;
Marcel Holtmannc13854c2010-02-08 15:27:07 +0100133 __u8 bus;
Marcel Holtmann943da252010-02-13 02:28:41 +0100134 __u8 dev_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700135 bdaddr_t bdaddr;
Johan Hedberg1f6c6372011-03-16 14:29:35 +0200136 __u8 dev_name[HCI_MAX_NAME_LENGTH];
Johan Hedberg80a1e1d2011-03-28 14:07:23 +0300137 __u8 eir[HCI_MAX_EIR_LENGTH];
Marcel Holtmanna9de9242007-10-20 13:33:56 +0200138 __u8 dev_class[3];
Johan Hedberg1aff6f02011-01-13 21:56:52 +0200139 __u8 major_class;
140 __u8 minor_class;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700141 __u8 features[8];
Andre Guedes971e3a42011-06-30 19:20:52 -0300142 __u8 extfeatures[8];
Marcel Holtmanna9de9242007-10-20 13:33:56 +0200143 __u8 commands[64];
Marcel Holtmann333140b2008-07-14 20:13:48 +0200144 __u8 ssp_mode;
Marcel Holtmann1143e5a2006-09-23 09:57:20 +0200145 __u8 hci_ver;
146 __u16 hci_rev;
Johan Hedbergd5859e22011-01-25 01:19:58 +0200147 __u8 lmp_ver;
Marcel Holtmann1143e5a2006-09-23 09:57:20 +0200148 __u16 manufacturer;
Johan Hedbergd5859e22011-01-25 01:19:58 +0200149 __le16 lmp_subver;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700150 __u16 voice_setting;
Johan Hedberg17fa4b92011-01-25 13:28:33 +0200151 __u8 io_capability;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700152
153 __u16 pkt_type;
Marcel Holtmann5b7f9902007-07-11 09:51:55 +0200154 __u16 esco_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700155 __u16 link_policy;
156 __u16 link_mode;
157
Marcel Holtmann04837f62006-07-03 10:02:33 +0200158 __u32 idle_timeout;
159 __u16 sniff_min_interval;
160 __u16 sniff_max_interval;
161
Andrei Emeltchenko928abaa2011-10-12 10:53:57 +0300162 __u8 amp_status;
163 __u32 amp_total_bw;
164 __u32 amp_max_bw;
165 __u32 amp_min_latency;
166 __u32 amp_max_pdu;
167 __u8 amp_type;
168 __u16 amp_pal_cap;
169 __u16 amp_assoc_size;
170 __u32 amp_max_flush_to;
171 __u32 amp_be_flush_to;
172
Johan Hedberg9f616562011-04-28 11:28:54 -0700173 unsigned int auto_accept_delay;
174
Linus Torvalds1da177e2005-04-16 15:20:36 -0700175 unsigned long quirks;
176
177 atomic_t cmd_cnt;
178 unsigned int acl_cnt;
179 unsigned int sco_cnt;
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300180 unsigned int le_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700181
182 unsigned int acl_mtu;
183 unsigned int sco_mtu;
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300184 unsigned int le_mtu;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700185 unsigned int acl_pkts;
186 unsigned int sco_pkts;
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300187 unsigned int le_pkts;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700188
Linus Torvalds1da177e2005-04-16 15:20:36 -0700189 unsigned long acl_last_tx;
190 unsigned long sco_last_tx;
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300191 unsigned long le_last_tx;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700192
Marcel Holtmannf48fd9c2010-03-20 15:20:04 +0100193 struct workqueue_struct *workqueue;
194
Johan Hedbergab81cbf2010-12-15 13:53:18 +0200195 struct work_struct power_on;
Johan Hedberg32435532011-11-07 22:16:04 +0200196 struct delayed_work power_off;
Johan Hedbergab81cbf2010-12-15 13:53:18 +0200197
Johan Hedberg16ab91a2011-11-07 22:16:02 +0200198 __u16 discov_timeout;
199 struct delayed_work discov_off;
200
Ville Tervo6bd32322011-02-16 16:32:41 +0200201 struct timer_list cmd_timer;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700202 struct tasklet_struct cmd_task;
203 struct tasklet_struct rx_task;
204 struct tasklet_struct tx_task;
205
206 struct sk_buff_head rx_q;
207 struct sk_buff_head raw_q;
208 struct sk_buff_head cmd_q;
209
210 struct sk_buff *sent_cmd;
Suraj Sumangalacd4c5392010-07-14 13:02:16 +0530211 struct sk_buff *reassembly[NUM_REASSEMBLY];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700212
Thomas Gleixnera6a67ef2009-07-26 08:18:19 +0000213 struct mutex req_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700214 wait_queue_head_t req_wait_q;
215 __u32 req_status;
216 __u32 req_result;
Johan Hedberga5040ef2011-01-10 13:28:59 +0200217
218 __u16 init_last_cmd;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700219
220 struct inquiry_cache inq_cache;
221 struct hci_conn_hash conn_hash;
David Millerea4bd8b2010-07-30 21:54:49 -0700222 struct list_head blacklist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700223
Johan Hedberg2aeb9a12011-01-04 12:08:51 +0200224 struct list_head uuids;
225
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200226 struct list_head link_keys;
227
Szymon Janc2763eda2011-03-22 13:12:22 +0100228 struct list_head remote_oob_data;
229
Andre Guedes76c86862011-05-26 16:23:50 -0300230 struct list_head adv_entries;
Andre Guedes35815082011-05-26 16:23:53 -0300231 struct timer_list adv_timer;
Andre Guedes76c86862011-05-26 16:23:50 -0300232
Linus Torvalds1da177e2005-04-16 15:20:36 -0700233 struct hci_dev_stats stat;
234
235 struct sk_buff_head driver_init;
236
237 void *driver_data;
238 void *core_data;
239
Andrei Emeltchenko70f230202010-12-01 16:58:25 +0200240 atomic_t promisc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700241
Marcel Holtmannca325f62010-02-08 16:22:31 +0100242 struct dentry *debugfs;
243
Marcel Holtmanna91f2e32006-07-03 10:02:41 +0200244 struct device *parent;
245 struct device dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700246
Marcel Holtmann611b30f2009-06-08 14:41:38 +0200247 struct rfkill *rfkill;
248
Andrei Emeltchenko70f230202010-12-01 16:58:25 +0200249 struct module *owner;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700250
251 int (*open)(struct hci_dev *hdev);
252 int (*close)(struct hci_dev *hdev);
253 int (*flush)(struct hci_dev *hdev);
254 int (*send)(struct sk_buff *skb);
255 void (*destruct)(struct hci_dev *hdev);
256 void (*notify)(struct hci_dev *hdev, unsigned int evt);
257 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
258};
259
260struct hci_conn {
261 struct list_head list;
262
Szymon Jancadc42662011-02-17 16:42:00 +0100263 atomic_t refcnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700264
Szymon Jancadc42662011-02-17 16:42:00 +0100265 bdaddr_t dst;
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200266 __u8 dst_type;
Szymon Jancadc42662011-02-17 16:42:00 +0100267 __u16 handle;
268 __u16 state;
269 __u8 mode;
270 __u8 type;
271 __u8 out;
272 __u8 attempt;
273 __u8 dev_class[3];
274 __u8 features[8];
275 __u8 ssp_mode;
276 __u16 interval;
277 __u16 pkt_type;
278 __u16 link_policy;
279 __u32 link_mode;
Waldemar Rymarkiewicz13d39312011-04-28 12:07:55 +0200280 __u8 key_type;
Szymon Jancadc42662011-02-17 16:42:00 +0100281 __u8 auth_type;
282 __u8 sec_level;
283 __u8 pending_sec_level;
284 __u8 pin_length;
Vinicius Costa Gomes726b4ff2011-07-08 18:31:45 -0300285 __u8 enc_key_size;
Szymon Jancadc42662011-02-17 16:42:00 +0100286 __u8 io_capability;
287 __u8 power_save;
288 __u16 disc_timeout;
289 unsigned long pend;
Marcel Holtmann04837f62006-07-03 10:02:33 +0200290
Johan Hedberg03b555e2011-01-04 15:40:05 +0200291 __u8 remote_cap;
292 __u8 remote_oob;
293 __u8 remote_auth;
294
Szymon Jancadc42662011-02-17 16:42:00 +0100295 unsigned int sent;
Marcel Holtmann04837f62006-07-03 10:02:33 +0200296
Linus Torvalds1da177e2005-04-16 15:20:36 -0700297 struct sk_buff_head data_q;
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200298 struct hci_chan_hash chan_hash;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700299
Marcel Holtmann04837f62006-07-03 10:02:33 +0200300 struct timer_list disc_timer;
301 struct timer_list idle_timer;
Johan Hedberg9f616562011-04-28 11:28:54 -0700302 struct timer_list auto_accept_timer;
Marcel Holtmann04837f62006-07-03 10:02:33 +0200303
Roger Quadrosf3784d82009-04-23 14:50:54 +0300304 struct work_struct work_add;
305 struct work_struct work_del;
Marcel Holtmannb219e3a2006-07-06 12:38:46 +0200306
307 struct device dev;
Marcel Holtmann9eba32b2009-08-22 14:19:26 -0700308 atomic_t devref;
Marcel Holtmannb219e3a2006-07-06 12:38:46 +0200309
Linus Torvalds1da177e2005-04-16 15:20:36 -0700310 struct hci_dev *hdev;
311 void *l2cap_data;
312 void *sco_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700313
314 struct hci_conn *link;
Johan Hedberge9a416b2011-02-19 12:05:56 -0300315
316 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
317 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
318 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700319};
320
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200321struct hci_chan {
322 struct list_head list;
323
324 struct hci_conn *conn;
325 struct sk_buff_head data_q;
326 unsigned int sent;
327};
328
Linus Torvalds1da177e2005-04-16 15:20:36 -0700329extern struct hci_proto *hci_proto[];
330extern struct list_head hci_dev_list;
331extern struct list_head hci_cb_list;
332extern rwlock_t hci_dev_list_lock;
333extern rwlock_t hci_cb_list_lock;
334
335/* ----- Inquiry cache ----- */
Andrei Emeltchenko70f230202010-12-01 16:58:25 +0200336#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
337#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700338
339#define inquiry_cache_lock(c) spin_lock(&c->lock)
340#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
341#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
342#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
343
344static inline void inquiry_cache_init(struct hci_dev *hdev)
345{
346 struct inquiry_cache *c = &hdev->inq_cache;
347 spin_lock_init(&c->lock);
348 c->list = NULL;
349}
350
351static inline int inquiry_cache_empty(struct hci_dev *hdev)
352{
353 struct inquiry_cache *c = &hdev->inq_cache;
Eric Dumazeta02cec22010-09-22 20:43:57 +0000354 return c->list == NULL;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700355}
356
357static inline long inquiry_cache_age(struct hci_dev *hdev)
358{
359 struct inquiry_cache *c = &hdev->inq_cache;
360 return jiffies - c->timestamp;
361}
362
363static inline long inquiry_entry_age(struct inquiry_entry *e)
364{
365 return jiffies - e->timestamp;
366}
367
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200368struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
369 bdaddr_t *bdaddr);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700370void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);
371
372/* ----- HCI Connections ----- */
373enum {
374 HCI_CONN_AUTH_PEND,
Waldemar Rymarkiewicz19f8def2011-05-31 15:49:25 +0200375 HCI_CONN_REAUTH_PEND,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700376 HCI_CONN_ENCRYPT_PEND,
Marcel Holtmann04837f62006-07-03 10:02:33 +0200377 HCI_CONN_RSWITCH_PEND,
378 HCI_CONN_MODE_CHANGE_PEND,
Marcel Holtmanne73439d2010-07-26 10:06:00 -0400379 HCI_CONN_SCO_SETUP_PEND,
Vinicius Costa Gomesd26a2342011-08-19 21:06:51 -0300380 HCI_CONN_LE_SMP_PEND,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700381};
382
383static inline void hci_conn_hash_init(struct hci_dev *hdev)
384{
385 struct hci_conn_hash *h = &hdev->conn_hash;
386 INIT_LIST_HEAD(&h->list);
387 spin_lock_init(&h->lock);
388 h->acl_num = 0;
389 h->sco_num = 0;
390}
391
392static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
393{
394 struct hci_conn_hash *h = &hdev->conn_hash;
395 list_add(&c->list, &h->list);
Ville Tervofcd89c02011-02-10 22:38:47 -0300396 switch (c->type) {
397 case ACL_LINK:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398 h->acl_num++;
Ville Tervofcd89c02011-02-10 22:38:47 -0300399 break;
400 case LE_LINK:
401 h->le_num++;
402 break;
403 case SCO_LINK:
404 case ESCO_LINK:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700405 h->sco_num++;
Ville Tervofcd89c02011-02-10 22:38:47 -0300406 break;
407 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700408}
409
410static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
411{
412 struct hci_conn_hash *h = &hdev->conn_hash;
413 list_del(&c->list);
Ville Tervofcd89c02011-02-10 22:38:47 -0300414 switch (c->type) {
415 case ACL_LINK:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700416 h->acl_num--;
Ville Tervofcd89c02011-02-10 22:38:47 -0300417 break;
418 case LE_LINK:
419 h->le_num--;
420 break;
421 case SCO_LINK:
422 case ESCO_LINK:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700423 h->sco_num--;
Ville Tervofcd89c02011-02-10 22:38:47 -0300424 break;
425 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426}
427
Luiz Augusto von Dentz52087a72011-08-17 16:23:00 +0300428static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
429{
430 struct hci_conn_hash *h = &hdev->conn_hash;
431 switch (type) {
432 case ACL_LINK:
433 return h->acl_num;
434 case LE_LINK:
435 return h->le_num;
436 case SCO_LINK:
437 case ESCO_LINK:
438 return h->sco_num;
439 default:
440 return 0;
441 }
442}
443
Linus Torvalds1da177e2005-04-16 15:20:36 -0700444static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
Szymon Jancadc42662011-02-17 16:42:00 +0100445 __u16 handle)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700446{
447 struct hci_conn_hash *h = &hdev->conn_hash;
448 struct list_head *p;
449 struct hci_conn *c;
450
451 list_for_each(p, &h->list) {
452 c = list_entry(p, struct hci_conn, list);
453 if (c->handle == handle)
454 return c;
455 }
456 return NULL;
457}
458
459static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
Szymon Jancadc42662011-02-17 16:42:00 +0100460 __u8 type, bdaddr_t *ba)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700461{
462 struct hci_conn_hash *h = &hdev->conn_hash;
463 struct list_head *p;
464 struct hci_conn *c;
465
466 list_for_each(p, &h->list) {
467 c = list_entry(p, struct hci_conn, list);
468 if (c->type == type && !bacmp(&c->dst, ba))
469 return c;
470 }
471 return NULL;
472}
473
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200474static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
Szymon Jancadc42662011-02-17 16:42:00 +0100475 __u8 type, __u16 state)
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200476{
477 struct hci_conn_hash *h = &hdev->conn_hash;
478 struct list_head *p;
479 struct hci_conn *c;
480
481 list_for_each(p, &h->list) {
482 c = list_entry(p, struct hci_conn, list);
483 if (c->type == type && c->state == state)
484 return c;
485 }
486 return NULL;
487}
488
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200489static inline void hci_chan_hash_init(struct hci_conn *c)
490{
491 struct hci_chan_hash *h = &c->chan_hash;
492 INIT_LIST_HEAD(&h->list);
493 spin_lock_init(&h->lock);
494 h->num = 0;
495}
496
497static inline void hci_chan_hash_add(struct hci_conn *c, struct hci_chan *chan)
498{
499 struct hci_chan_hash *h = &c->chan_hash;
500 list_add(&chan->list, &h->list);
501 h->num++;
502}
503
504static inline void hci_chan_hash_del(struct hci_conn *c, struct hci_chan *chan)
505{
506 struct hci_chan_hash *h = &c->chan_hash;
507 list_del(&chan->list);
508 h->num--;
509}
510
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200511void hci_acl_connect(struct hci_conn *conn);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
513void hci_add_sco(struct hci_conn *conn, __u16 handle);
Marcel Holtmannb6a0dc82007-10-20 14:55:10 +0200514void hci_setup_sync(struct hci_conn *conn, __u16 handle);
Marcel Holtmanne73439d2010-07-26 10:06:00 -0400515void hci_sco_setup(struct hci_conn *conn, __u8 status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516
517struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
Marcel Holtmanna9de9242007-10-20 13:33:56 +0200518int hci_conn_del(struct hci_conn *conn);
519void hci_conn_hash_flush(struct hci_dev *hdev);
520void hci_conn_check_pending(struct hci_dev *hdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700521
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200522struct hci_chan *hci_chan_create(struct hci_conn *conn);
523int hci_chan_del(struct hci_chan *chan);
524void hci_chan_hash_flush(struct hci_conn *conn);
525
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200526struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
527 __u8 sec_level, __u8 auth_type);
Marcel Holtmanne7c29cb2008-09-09 07:19:20 +0200528int hci_conn_check_link_mode(struct hci_conn *conn);
Waldemar Rymarkiewiczb3b1b062011-05-06 09:42:31 +0200529int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
Marcel Holtmann0684e5f2009-02-09 02:48:38 +0100530int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700531int hci_conn_change_link_key(struct hci_conn *conn);
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100532int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533
Jaikumar Ganesh14b12d02011-05-23 18:06:04 -0700534void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
Marcel Holtmann04837f62006-07-03 10:02:33 +0200535void hci_conn_enter_sniff_mode(struct hci_conn *conn);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700536
Marcel Holtmann9eba32b2009-08-22 14:19:26 -0700537void hci_conn_hold_device(struct hci_conn *conn);
538void hci_conn_put_device(struct hci_conn *conn);
539
Linus Torvalds1da177e2005-04-16 15:20:36 -0700540static inline void hci_conn_hold(struct hci_conn *conn)
541{
542 atomic_inc(&conn->refcnt);
Marcel Holtmann04837f62006-07-03 10:02:33 +0200543 del_timer(&conn->disc_timer);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544}
545
546static inline void hci_conn_put(struct hci_conn *conn)
547{
548 if (atomic_dec_and_test(&conn->refcnt)) {
Marcel Holtmann04837f62006-07-03 10:02:33 +0200549 unsigned long timeo;
Vinicius Costa Gomes454d48f2011-08-19 21:06:52 -0300550 if (conn->type == ACL_LINK || conn->type == LE_LINK) {
Marcel Holtmann04837f62006-07-03 10:02:33 +0200551 del_timer(&conn->idle_timer);
Marcel Holtmann6ac59342006-09-26 09:43:48 +0200552 if (conn->state == BT_CONNECTED) {
Marcel Holtmann052b30b2009-04-26 20:01:22 +0200553 timeo = msecs_to_jiffies(conn->disc_timeout);
Marcel Holtmann6ac59342006-09-26 09:43:48 +0200554 if (!conn->out)
Marcel Holtmann052b30b2009-04-26 20:01:22 +0200555 timeo *= 2;
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200556 } else {
Marcel Holtmann6ac59342006-09-26 09:43:48 +0200557 timeo = msecs_to_jiffies(10);
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200558 }
559 } else {
Marcel Holtmann04837f62006-07-03 10:02:33 +0200560 timeo = msecs_to_jiffies(10);
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200561 }
Marcel Holtmann04837f62006-07-03 10:02:33 +0200562 mod_timer(&conn->disc_timer, jiffies + timeo);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700563 }
564}
565
Linus Torvalds1da177e2005-04-16 15:20:36 -0700566/* ----- HCI Devices ----- */
567static inline void __hci_dev_put(struct hci_dev *d)
568{
569 if (atomic_dec_and_test(&d->refcnt))
570 d->destruct(d);
571}
572
573static inline void hci_dev_put(struct hci_dev *d)
Ron Shaffer04fafe42010-05-28 11:53:45 -0400574{
Linus Torvalds1da177e2005-04-16 15:20:36 -0700575 __hci_dev_put(d);
576 module_put(d->owner);
577}
578
579static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
580{
581 atomic_inc(&d->refcnt);
582 return d;
583}
584
585static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
586{
587 if (try_module_get(d->owner))
588 return __hci_dev_hold(d);
589 return NULL;
590}
591
592#define hci_dev_lock(d) spin_lock(&d->lock)
593#define hci_dev_unlock(d) spin_unlock(&d->lock)
594#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
595#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
596
597struct hci_dev *hci_dev_get(int index);
598struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
599
600struct hci_dev *hci_alloc_dev(void);
601void hci_free_dev(struct hci_dev *hdev);
602int hci_register_dev(struct hci_dev *hdev);
David Herrmann59735632011-10-26 10:43:19 +0200603void hci_unregister_dev(struct hci_dev *hdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700604int hci_suspend_dev(struct hci_dev *hdev);
605int hci_resume_dev(struct hci_dev *hdev);
606int hci_dev_open(__u16 dev);
607int hci_dev_close(__u16 dev);
608int hci_dev_reset(__u16 dev);
609int hci_dev_reset_stat(__u16 dev);
610int hci_dev_cmd(unsigned int cmd, void __user *arg);
611int hci_get_dev_list(void __user *arg);
612int hci_get_dev_info(void __user *arg);
613int hci_get_conn_list(void __user *arg);
614int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
Marcel Holtmann40be4922008-07-14 20:13:50 +0200615int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700616int hci_inquiry(void __user *arg);
617
Johan Hedbergf0358562010-05-18 13:20:32 +0200618struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr);
619int hci_blacklist_clear(struct hci_dev *hdev);
Antti Julkub2a66aa2011-06-15 12:01:14 +0300620int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr);
621int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr);
Johan Hedbergf0358562010-05-18 13:20:32 +0200622
Johan Hedberg2aeb9a12011-01-04 12:08:51 +0200623int hci_uuids_clear(struct hci_dev *hdev);
624
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200625int hci_link_keys_clear(struct hci_dev *hdev);
626struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
Johan Hedbergd25e28a2011-04-28 11:28:59 -0700627int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
628 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
Vinicius Costa Gomes75d262c2011-07-07 18:59:36 -0300629struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
630struct link_key *hci_find_link_key_type(struct hci_dev *hdev,
631 bdaddr_t *bdaddr, u8 type);
632int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr,
Vinicius Costa Gomes726b4ff2011-07-08 18:31:45 -0300633 u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]);
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200634int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
635
Szymon Janc2763eda2011-03-22 13:12:22 +0100636int hci_remote_oob_data_clear(struct hci_dev *hdev);
637struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
638 bdaddr_t *bdaddr);
639int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
640 u8 *randomizer);
641int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
642
Andre Guedes35815082011-05-26 16:23:53 -0300643#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */
Andre Guedes76c86862011-05-26 16:23:50 -0300644int hci_adv_entries_clear(struct hci_dev *hdev);
645struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr);
646int hci_add_adv_entry(struct hci_dev *hdev,
647 struct hci_ev_le_advertising_info *ev);
648
Johan Hedbergab81cbf2010-12-15 13:53:18 +0200649void hci_del_off_timer(struct hci_dev *hdev);
650
Linus Torvalds1da177e2005-04-16 15:20:36 -0700651void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
652
Marcel Holtmann76bca882009-11-18 00:40:39 +0100653int hci_recv_frame(struct sk_buff *skb);
Marcel Holtmannef222012007-07-11 06:42:04 +0200654int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
Suraj Sumangala99811512010-07-14 13:02:19 +0530655int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
Marcel Holtmannef222012007-07-11 06:42:04 +0200656
David Herrmann0ac7e702011-10-08 14:58:47 +0200657void hci_init_sysfs(struct hci_dev *hdev);
David Herrmannce242972011-10-08 14:58:48 +0200658int hci_add_sysfs(struct hci_dev *hdev);
659void hci_del_sysfs(struct hci_dev *hdev);
Marcel Holtmanna67e8992009-05-02 18:24:06 -0700660void hci_conn_init_sysfs(struct hci_conn *conn);
Marcel Holtmannb219e3a2006-07-06 12:38:46 +0200661void hci_conn_add_sysfs(struct hci_conn *conn);
662void hci_conn_del_sysfs(struct hci_conn *conn);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700663
Marcel Holtmanna91f2e32006-07-03 10:02:41 +0200664#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700665
666/* ----- LMP capabilities ----- */
Marcel Holtmann04837f62006-07-03 10:02:33 +0200667#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
668#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
669#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
670#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
Marcel Holtmann5b7f9902007-07-11 09:51:55 +0200671#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
Marcel Holtmann769be972008-07-14 20:13:49 +0200672#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
Andrei Emeltchenkoe7021122011-01-03 11:14:36 +0200673#define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH)
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300674#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700675
Andre Guedeseead27d2011-06-30 19:20:55 -0300676/* ----- Extended LMP capabilities ----- */
677#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE)
678
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679/* ----- HCI protocols ----- */
680struct hci_proto {
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100681 char *name;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700682 unsigned int id;
683 unsigned long flags;
684
685 void *priv;
686
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200687 int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr,
688 __u8 type);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689 int (*connect_cfm) (struct hci_conn *conn, __u8 status);
Marcel Holtmann2950f212009-02-12 14:02:50 +0100690 int (*disconn_ind) (struct hci_conn *conn);
691 int (*disconn_cfm) (struct hci_conn *conn, __u8 reason);
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200692 int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb,
693 __u16 flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700694 int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb);
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200695 int (*security_cfm) (struct hci_conn *conn, __u8 status,
696 __u8 encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700697};
698
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200699static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
700 __u8 type)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700701{
702 register struct hci_proto *hp;
703 int mask = 0;
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100704
Linus Torvalds1da177e2005-04-16 15:20:36 -0700705 hp = hci_proto[HCI_PROTO_L2CAP];
706 if (hp && hp->connect_ind)
707 mask |= hp->connect_ind(hdev, bdaddr, type);
708
709 hp = hci_proto[HCI_PROTO_SCO];
710 if (hp && hp->connect_ind)
711 mask |= hp->connect_ind(hdev, bdaddr, type);
712
713 return mask;
714}
715
716static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
717{
718 register struct hci_proto *hp;
719
720 hp = hci_proto[HCI_PROTO_L2CAP];
721 if (hp && hp->connect_cfm)
722 hp->connect_cfm(conn, status);
723
724 hp = hci_proto[HCI_PROTO_SCO];
725 if (hp && hp->connect_cfm)
726 hp->connect_cfm(conn, status);
Johan Hedberge9a416b2011-02-19 12:05:56 -0300727
728 if (conn->connect_cfm_cb)
729 conn->connect_cfm_cb(conn, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700730}
731
Marcel Holtmann2950f212009-02-12 14:02:50 +0100732static inline int hci_proto_disconn_ind(struct hci_conn *conn)
733{
734 register struct hci_proto *hp;
Andrei Emeltchenko9f5a0d72011-11-07 14:20:25 +0200735 int reason = HCI_ERROR_REMOTE_USER_TERM;
Marcel Holtmann2950f212009-02-12 14:02:50 +0100736
737 hp = hci_proto[HCI_PROTO_L2CAP];
738 if (hp && hp->disconn_ind)
739 reason = hp->disconn_ind(conn);
740
741 hp = hci_proto[HCI_PROTO_SCO];
742 if (hp && hp->disconn_ind)
743 reason = hp->disconn_ind(conn);
744
745 return reason;
746}
747
748static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700749{
750 register struct hci_proto *hp;
751
752 hp = hci_proto[HCI_PROTO_L2CAP];
Marcel Holtmann2950f212009-02-12 14:02:50 +0100753 if (hp && hp->disconn_cfm)
754 hp->disconn_cfm(conn, reason);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700755
756 hp = hci_proto[HCI_PROTO_SCO];
Marcel Holtmann2950f212009-02-12 14:02:50 +0100757 if (hp && hp->disconn_cfm)
758 hp->disconn_cfm(conn, reason);
Johan Hedberge9a416b2011-02-19 12:05:56 -0300759
760 if (conn->disconn_cfm_cb)
761 conn->disconn_cfm_cb(conn, reason);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700762}
763
764static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
765{
766 register struct hci_proto *hp;
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100767 __u8 encrypt;
768
769 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
770 return;
771
772 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700773
774 hp = hci_proto[HCI_PROTO_L2CAP];
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100775 if (hp && hp->security_cfm)
776 hp->security_cfm(conn, status, encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700777
778 hp = hci_proto[HCI_PROTO_SCO];
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100779 if (hp && hp->security_cfm)
780 hp->security_cfm(conn, status, encrypt);
Johan Hedberge9a416b2011-02-19 12:05:56 -0300781
782 if (conn->security_cfm_cb)
783 conn->security_cfm_cb(conn, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700784}
785
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200786static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
787 __u8 encrypt)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700788{
789 register struct hci_proto *hp;
790
791 hp = hci_proto[HCI_PROTO_L2CAP];
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100792 if (hp && hp->security_cfm)
793 hp->security_cfm(conn, status, encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700794
795 hp = hci_proto[HCI_PROTO_SCO];
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100796 if (hp && hp->security_cfm)
797 hp->security_cfm(conn, status, encrypt);
Johan Hedberge9a416b2011-02-19 12:05:56 -0300798
799 if (conn->security_cfm_cb)
800 conn->security_cfm_cb(conn, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700801}
802
803int hci_register_proto(struct hci_proto *hproto);
804int hci_unregister_proto(struct hci_proto *hproto);
805
806/* ----- HCI callbacks ----- */
807struct hci_cb {
808 struct list_head list;
809
810 char *name;
811
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200812 void (*security_cfm) (struct hci_conn *conn, __u8 status,
813 __u8 encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700814 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
815 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
816};
817
818static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
819{
820 struct list_head *p;
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100821 __u8 encrypt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822
823 hci_proto_auth_cfm(conn, status);
824
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100825 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
826 return;
827
828 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
829
Linus Torvalds1da177e2005-04-16 15:20:36 -0700830 read_lock_bh(&hci_cb_list_lock);
831 list_for_each(p, &hci_cb_list) {
832 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100833 if (cb->security_cfm)
834 cb->security_cfm(conn, status, encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835 }
836 read_unlock_bh(&hci_cb_list_lock);
837}
838
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200839static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
840 __u8 encrypt)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700841{
842 struct list_head *p;
843
Marcel Holtmann435fef22009-02-09 03:55:28 +0100844 if (conn->sec_level == BT_SECURITY_SDP)
845 conn->sec_level = BT_SECURITY_LOW;
846
Vinicius Costa Gomes88167ae2011-06-09 18:50:51 -0300847 if (conn->pending_sec_level > conn->sec_level)
848 conn->sec_level = conn->pending_sec_level;
849
Marcel Holtmann9719f8a2008-07-14 20:13:45 +0200850 hci_proto_encrypt_cfm(conn, status, encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700851
852 read_lock_bh(&hci_cb_list_lock);
853 list_for_each(p, &hci_cb_list) {
854 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100855 if (cb->security_cfm)
856 cb->security_cfm(conn, status, encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700857 }
858 read_unlock_bh(&hci_cb_list_lock);
859}
860
861static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
862{
863 struct list_head *p;
864
865 read_lock_bh(&hci_cb_list_lock);
866 list_for_each(p, &hci_cb_list) {
867 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
868 if (cb->key_change_cfm)
869 cb->key_change_cfm(conn, status);
870 }
871 read_unlock_bh(&hci_cb_list_lock);
872}
873
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200874static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
875 __u8 role)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700876{
877 struct list_head *p;
878
879 read_lock_bh(&hci_cb_list_lock);
880 list_for_each(p, &hci_cb_list) {
881 struct hci_cb *cb = list_entry(p, struct hci_cb, list);
882 if (cb->role_switch_cfm)
883 cb->role_switch_cfm(conn, status, role);
884 }
885 read_unlock_bh(&hci_cb_list_lock);
886}
887
888int hci_register_cb(struct hci_cb *hcb);
889int hci_unregister_cb(struct hci_cb *hcb);
890
891int hci_register_notifier(struct notifier_block *nb);
892int hci_unregister_notifier(struct notifier_block *nb);
893
Marcel Holtmanna9de9242007-10-20 13:33:56 +0200894int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param);
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200895void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
Gustavo F. Padovan0d861d82010-05-01 16:15:35 -0300896void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700897
Marcel Holtmanna9de9242007-10-20 13:33:56 +0200898void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700899
900void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data);
901
902/* ----- HCI Sockets ----- */
Johan Hedbergeec8d2b2010-12-16 10:17:38 +0200903void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb,
904 struct sock *skip_sk);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700905
Johan Hedberg03811012010-12-08 00:21:06 +0200906/* Management interface */
907int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
Johan Hedberg744cf192011-11-08 20:40:14 +0200908int mgmt_index_added(struct hci_dev *hdev);
909int mgmt_index_removed(struct hci_dev *hdev);
910int mgmt_powered(struct hci_dev *hdev, u8 powered);
911int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
912int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
913int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
914int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
915 u8 persistent);
916int mgmt_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
917int mgmt_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
918int mgmt_disconnect_failed(struct hci_dev *hdev);
919int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
Johan Hedberga5c29682011-02-19 12:05:57 -0300920 u8 status);
Johan Hedberg744cf192011-11-08 20:40:14 +0200921int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
922int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
Szymon Jancc35938b2011-03-22 13:12:21 +0100923 u8 status);
Johan Hedberg744cf192011-11-08 20:40:14 +0200924int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
925 u8 status);
926int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
927 __le32 value, u8 confirm_hint);
928int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
929 u8 status);
930int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev,
931 bdaddr_t *bdaddr, u8 status);
932int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status);
933int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
934int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
935 u8 *randomizer, u8 status);
936int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type,
937 u8 *dev_class, s8 rssi, u8 *eir);
938int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *name);
939int mgmt_inquiry_failed(struct hci_dev *hdev, u8 status);
940int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
941int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
942int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr);
Johan Hedberg03811012010-12-08 00:21:06 +0200943
Linus Torvalds1da177e2005-04-16 15:20:36 -0700944/* HCI info for socket */
945#define hci_pi(sk) ((struct hci_pinfo *) sk)
946
947struct hci_pinfo {
948 struct bt_sock bt;
949 struct hci_dev *hdev;
950 struct hci_filter filter;
951 __u32 cmsg_mask;
Johan Hedbergc02178d2010-12-08 00:21:05 +0200952 unsigned short channel;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700953};
954
955/* HCI security filter */
956#define HCI_SFLT_MAX_OGF 5
957
958struct hci_sec_filter {
959 __u32 type_mask;
960 __u32 event_mask[2];
961 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
962};
963
964/* ----- HCI requests ----- */
965#define HCI_REQ_DONE 0
966#define HCI_REQ_PEND 1
967#define HCI_REQ_CANCELED 2
968
Thomas Gleixnera6a67ef2009-07-26 08:18:19 +0000969#define hci_req_lock(d) mutex_lock(&d->req_lock)
970#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971
Johan Hedberg23bb5762010-12-21 23:01:27 +0200972void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700973
Claudio Takahasi2ce603e2011-02-16 20:44:53 -0200974void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
975 u16 latency, u16 to_multiplier);
Vinicius Costa Gomesa7a595f2011-06-09 18:50:47 -0300976void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
977 __u8 ltk[16]);
978void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]);
979void hci_le_ltk_neg_reply(struct hci_conn *conn);
980
Andre Guedes2519a1f2011-11-07 11:45:24 -0300981int hci_do_inquiry(struct hci_dev *hdev, u8 length);
Andre Guedes023d50492011-11-04 14:16:52 -0300982int hci_cancel_inquiry(struct hci_dev *hdev);
Andre Guedes2519a1f2011-11-07 11:45:24 -0300983
Linus Torvalds1da177e2005-04-16 15:20:36 -0700984#endif /* __HCI_CORE_H */