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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
Linus Torvalds1da177e2005-04-16 15:20:36 -070028#include <net/bluetooth/hci.h>
29
Luiz Augusto von Dentz5e59b792011-11-01 10:58:57 +020030/* HCI priority */
31#define HCI_PRIO_MAX 7
32
Linus Torvalds1da177e2005-04-16 15:20:36 -070033/* HCI Core structures */
Linus Torvalds1da177e2005-04-16 15:20:36 -070034struct 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];
Marcel Holtmann1ebb9252005-11-08 09:57:21 -080040 __le16 clock_offset;
Linus Torvalds1da177e2005-04-16 15:20:36 -070041 __s8 rssi;
Marcel Holtmann41a96212008-07-14 20:13:48 +020042 __u8 ssp_mode;
Linus Torvalds1da177e2005-04-16 15:20:36 -070043};
44
45struct inquiry_entry {
Johan Hedberg561aafb2012-01-04 13:31:59 +020046 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;
Linus Torvalds1da177e2005-04-16 15:20:36 -070054 __u32 timestamp;
55 struct inquiry_data data;
56};
57
Johan Hedberg30883512012-01-04 14:16:21 +020058struct discovery_state {
Gustavo F. Padovanf64b9932012-03-06 23:48:33 -030059 int type;
Johan Hedbergff9ef572012-01-04 14:23:45 +020060 enum {
61 DISCOVERY_STOPPED,
62 DISCOVERY_STARTING,
Andre Guedes343f9352012-02-17 20:39:37 -030063 DISCOVERY_FINDING,
Johan Hedberg30dc78e2012-01-04 15:44:20 +020064 DISCOVERY_RESOLVING,
Johan Hedbergff9ef572012-01-04 14:23:45 +020065 DISCOVERY_STOPPING,
66 } state;
Gustavo Padovanc3c7ea62012-05-23 04:04:20 -030067 struct list_head all; /* All devices found during inquiry */
Gustavo F. Padovanf64b9932012-03-06 23:48:33 -030068 struct list_head unknown; /* Name state not known */
69 struct list_head resolve; /* Name needs to be resolved */
70 __u32 timestamp;
Linus Torvalds1da177e2005-04-16 15:20:36 -070071};
72
73struct hci_conn_hash {
74 struct list_head list;
Linus Torvalds1da177e2005-04-16 15:20:36 -070075 unsigned int acl_num;
Andrei Emeltchenkobd1eb662012-10-10 17:38:30 +030076 unsigned int amp_num;
Linus Torvalds1da177e2005-04-16 15:20:36 -070077 unsigned int sco_num;
Ville Tervofcd89c02011-02-10 22:38:47 -030078 unsigned int le_num;
Linus Torvalds1da177e2005-04-16 15:20:36 -070079};
80
Johan Hedbergf0358562010-05-18 13:20:32 +020081struct bdaddr_list {
82 struct list_head list;
83 bdaddr_t bdaddr;
84};
Johan Hedberg2aeb9a12011-01-04 12:08:51 +020085
86struct bt_uuid {
87 struct list_head list;
88 u8 uuid[16];
Johan Hedberg83be8ec2013-01-27 00:31:29 +020089 u8 size;
Johan Hedberg1aff6f02011-01-13 21:56:52 +020090 u8 svc_hint;
Johan Hedberg2aeb9a12011-01-04 12:08:51 +020091};
92
Vinicius Costa Gomesb899efa2012-02-02 21:08:00 -030093struct 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
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200105struct link_key {
106 struct list_head list;
107 bdaddr_t bdaddr;
108 u8 type;
Andrei Emeltchenko9b3b4462012-05-23 11:31:20 +0300109 u8 val[HCI_LINK_KEY_SIZE];
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200110 u8 pin_len;
111};
112
Szymon Janc2763eda2011-03-22 13:12:22 +0100113struct oob_data {
114 struct list_head list;
115 bdaddr_t bdaddr;
116 u8 hash[16];
117 u8 randomizer[16];
118};
119
Johan Hedberg490c5ba2012-02-22 19:19:09 +0200120#define HCI_MAX_SHORT_NAME_LENGTH 10
121
Andrei Emeltchenko903e4542012-09-27 17:26:09 +0300122struct amp_assoc {
123 __u16 len;
124 __u16 offset;
Andrei Emeltchenko93c284e2012-09-27 17:26:20 +0300125 __u16 rem_len;
126 __u16 len_so_far;
Andrei Emeltchenko903e4542012-09-27 17:26:09 +0300127 __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
128};
129
Johan Hedbergd2c5d772013-04-17 15:00:52 +0300130#define HCI_MAX_PAGES 3
Johan Hedbergcad718e2013-04-17 15:00:51 +0300131
Suraj Sumangalacd4c5392010-07-14 13:02:16 +0530132#define NUM_REASSEMBLY 4
Linus Torvalds1da177e2005-04-16 15:20:36 -0700133struct hci_dev {
134 struct list_head list;
Gustavo F. Padovan09fd0de2011-06-17 13:03:21 -0300135 struct mutex lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700136
137 char name[8];
138 unsigned long flags;
139 __u16 id;
Marcel Holtmannc13854c2010-02-08 15:27:07 +0100140 __u8 bus;
Marcel Holtmann943da252010-02-13 02:28:41 +0100141 __u8 dev_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700142 bdaddr_t bdaddr;
Johan Hedberg1f6c6372011-03-16 14:29:35 +0200143 __u8 dev_name[HCI_MAX_NAME_LENGTH];
Johan Hedberg490c5ba2012-02-22 19:19:09 +0200144 __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH];
Johan Hedberg80a1e1d2011-03-28 14:07:23 +0300145 __u8 eir[HCI_MAX_EIR_LENGTH];
Marcel Holtmanna9de9242007-10-20 13:33:56 +0200146 __u8 dev_class[3];
Johan Hedberg1aff6f02011-01-13 21:56:52 +0200147 __u8 major_class;
148 __u8 minor_class;
Johan Hedbergd2c5d772013-04-17 15:00:52 +0300149 __u8 max_page;
Johan Hedbergcad718e2013-04-17 15:00:51 +0300150 __u8 features[HCI_MAX_PAGES][8];
Johan Hedberg60e77322013-01-22 14:01:59 +0200151 __u8 le_features[8];
Johan Hedbergcf1d0812013-01-22 14:02:00 +0200152 __u8 le_white_list_size;
Johan Hedberg9b008c02013-01-22 14:02:01 +0200153 __u8 le_states[8];
Marcel Holtmanna9de9242007-10-20 13:33:56 +0200154 __u8 commands[64];
Marcel Holtmann1143e5a2006-09-23 09:57:20 +0200155 __u8 hci_ver;
156 __u16 hci_rev;
Johan Hedbergd5859e22011-01-25 01:19:58 +0200157 __u8 lmp_ver;
Marcel Holtmann1143e5a2006-09-23 09:57:20 +0200158 __u16 manufacturer;
Andrei Emeltchenko7d692302012-03-09 11:46:49 +0200159 __u16 lmp_subver;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700160 __u16 voice_setting;
Johan Hedberg17fa4b92011-01-25 13:28:33 +0200161 __u8 io_capability;
Marcel Holtmann91c4e9b2012-03-11 19:27:21 -0700162 __s8 inq_tx_power;
Johan Hedbergf332ec62013-03-15 17:07:11 -0500163 __u16 page_scan_interval;
164 __u16 page_scan_window;
165 __u8 page_scan_type;
166
Marcel Holtmann2b9be132012-03-11 19:32:12 -0700167 __u16 devid_source;
168 __u16 devid_vendor;
169 __u16 devid_product;
170 __u16 devid_version;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700171
172 __u16 pkt_type;
Marcel Holtmann5b7f9902007-07-11 09:51:55 +0200173 __u16 esco_type;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700174 __u16 link_policy;
175 __u16 link_mode;
176
Marcel Holtmann04837f62006-07-03 10:02:33 +0200177 __u32 idle_timeout;
178 __u16 sniff_min_interval;
179 __u16 sniff_max_interval;
180
Andrei Emeltchenko928abaa2011-10-12 10:53:57 +0300181 __u8 amp_status;
182 __u32 amp_total_bw;
183 __u32 amp_max_bw;
184 __u32 amp_min_latency;
185 __u32 amp_max_pdu;
186 __u8 amp_type;
187 __u16 amp_pal_cap;
188 __u16 amp_assoc_size;
189 __u32 amp_max_flush_to;
190 __u32 amp_be_flush_to;
191
Andrei Emeltchenko903e4542012-09-27 17:26:09 +0300192 struct amp_assoc loc_assoc;
193
Andrei Emeltchenko1e89cff2011-11-24 14:52:02 +0200194 __u8 flow_ctl_mode;
195
Johan Hedberg9f616562011-04-28 11:28:54 -0700196 unsigned int auto_accept_delay;
197
Linus Torvalds1da177e2005-04-16 15:20:36 -0700198 unsigned long quirks;
199
200 atomic_t cmd_cnt;
201 unsigned int acl_cnt;
202 unsigned int sco_cnt;
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300203 unsigned int le_cnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700204
205 unsigned int acl_mtu;
206 unsigned int sco_mtu;
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300207 unsigned int le_mtu;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700208 unsigned int acl_pkts;
209 unsigned int sco_pkts;
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300210 unsigned int le_pkts;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700211
Andrei Emeltchenko350ee4c2011-12-07 15:56:51 +0200212 __u16 block_len;
213 __u16 block_mtu;
214 __u16 num_blocks;
215 __u16 block_cnt;
216
Linus Torvalds1da177e2005-04-16 15:20:36 -0700217 unsigned long acl_last_tx;
218 unsigned long sco_last_tx;
Ville Tervo6ed58ec2011-02-10 22:38:48 -0300219 unsigned long le_last_tx;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700220
Marcel Holtmannf48fd9c2010-03-20 15:20:04 +0100221 struct workqueue_struct *workqueue;
Johan Hedberg6ead1bb2013-01-14 22:33:50 +0200222 struct workqueue_struct *req_workqueue;
Marcel Holtmannf48fd9c2010-03-20 15:20:04 +0100223
Johan Hedbergab81cbf2010-12-15 13:53:18 +0200224 struct work_struct power_on;
Johan Hedberg32435532011-11-07 22:16:04 +0200225 struct delayed_work power_off;
Johan Hedbergab81cbf2010-12-15 13:53:18 +0200226
Johan Hedberg16ab91a2011-11-07 22:16:02 +0200227 __u16 discov_timeout;
228 struct delayed_work discov_off;
229
Johan Hedberg7d785252011-12-15 00:47:39 +0200230 struct delayed_work service_cache;
231
Ville Tervo6bd32322011-02-16 16:32:41 +0200232 struct timer_list cmd_timer;
Marcel Holtmannb78752c2010-08-08 23:06:53 -0400233
234 struct work_struct rx_work;
Gustavo F. Padovanc347b762011-12-14 23:53:47 -0200235 struct work_struct cmd_work;
Gustavo F. Padovan3eff45e2011-12-15 00:50:02 -0200236 struct work_struct tx_work;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700237
238 struct sk_buff_head rx_q;
239 struct sk_buff_head raw_q;
240 struct sk_buff_head cmd_q;
241
Johan Hedbergb6ddb632013-04-02 13:34:31 +0300242 struct sk_buff *recv_evt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700243 struct sk_buff *sent_cmd;
Suraj Sumangalacd4c5392010-07-14 13:02:16 +0530244 struct sk_buff *reassembly[NUM_REASSEMBLY];
Linus Torvalds1da177e2005-04-16 15:20:36 -0700245
Thomas Gleixnera6a67ef2009-07-26 08:18:19 +0000246 struct mutex req_lock;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700247 wait_queue_head_t req_wait_q;
248 __u32 req_status;
249 __u32 req_result;
Johan Hedberga5040ef2011-01-10 13:28:59 +0200250
Johan Hedberg2e58ef32011-11-08 20:40:15 +0200251 struct list_head mgmt_pending;
252
Johan Hedberg30883512012-01-04 14:16:21 +0200253 struct discovery_state discovery;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700254 struct hci_conn_hash conn_hash;
David Millerea4bd8b2010-07-30 21:54:49 -0700255 struct list_head blacklist;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700256
Johan Hedberg2aeb9a12011-01-04 12:08:51 +0200257 struct list_head uuids;
258
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200259 struct list_head link_keys;
260
Vinicius Costa Gomesb899efa2012-02-02 21:08:00 -0300261 struct list_head long_term_keys;
262
Szymon Janc2763eda2011-03-22 13:12:22 +0100263 struct list_head remote_oob_data;
264
Linus Torvalds1da177e2005-04-16 15:20:36 -0700265 struct hci_dev_stats stat;
266
Andrei Emeltchenko70f230202010-12-01 16:58:25 +0200267 atomic_t promisc;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700268
Marcel Holtmannca325f62010-02-08 16:22:31 +0100269 struct dentry *debugfs;
270
Marcel Holtmanna91f2e32006-07-03 10:02:41 +0200271 struct device dev;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700272
Marcel Holtmann611b30f2009-06-08 14:41:38 +0200273 struct rfkill *rfkill;
274
Andre Guedesd23264a2011-11-25 20:53:38 -0300275 unsigned long dev_flags;
276
Andre Guedes7ba8b4b2012-02-03 17:47:59 -0300277 struct delayed_work le_scan_disable;
278
Johan Hedberg8fa19092012-10-19 20:57:49 +0300279 __s8 adv_tx_power;
Johan Hedberg3f0f5242012-11-08 01:23:00 +0100280 __u8 adv_data[HCI_MAX_AD_LENGTH];
281 __u8 adv_data_len;
Johan Hedberg8fa19092012-10-19 20:57:49 +0300282
Linus Torvalds1da177e2005-04-16 15:20:36 -0700283 int (*open)(struct hci_dev *hdev);
284 int (*close)(struct hci_dev *hdev);
285 int (*flush)(struct hci_dev *hdev);
Marcel Holtmannf41c70c2012-11-12 14:02:14 +0900286 int (*setup)(struct hci_dev *hdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700287 int (*send)(struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700288 void (*notify)(struct hci_dev *hdev, unsigned int evt);
289 int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg);
290};
291
Andrei Emeltchenko53502d62012-10-10 17:38:27 +0300292#define HCI_PHY_HANDLE(handle) (handle & 0xff)
293
Linus Torvalds1da177e2005-04-16 15:20:36 -0700294struct hci_conn {
295 struct list_head list;
296
Szymon Jancadc42662011-02-17 16:42:00 +0100297 atomic_t refcnt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700298
Szymon Jancadc42662011-02-17 16:42:00 +0100299 bdaddr_t dst;
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200300 __u8 dst_type;
Szymon Jancadc42662011-02-17 16:42:00 +0100301 __u16 handle;
302 __u16 state;
303 __u8 mode;
304 __u8 type;
Johan Hedberga0c808b2012-01-16 09:49:58 +0200305 bool out;
Szymon Jancadc42662011-02-17 16:42:00 +0100306 __u8 attempt;
307 __u8 dev_class[3];
Johan Hedbergcad718e2013-04-17 15:00:51 +0300308 __u8 features[HCI_MAX_PAGES][8];
Szymon Jancadc42662011-02-17 16:42:00 +0100309 __u16 interval;
310 __u16 pkt_type;
311 __u16 link_policy;
312 __u32 link_mode;
Waldemar Rymarkiewicz13d39312011-04-28 12:07:55 +0200313 __u8 key_type;
Szymon Jancadc42662011-02-17 16:42:00 +0100314 __u8 auth_type;
315 __u8 sec_level;
316 __u8 pending_sec_level;
317 __u8 pin_length;
Vinicius Costa Gomes726b4ff2011-07-08 18:31:45 -0300318 __u8 enc_key_size;
Szymon Jancadc42662011-02-17 16:42:00 +0100319 __u8 io_capability;
Johan Hedberg92a25252012-09-06 18:39:26 +0300320 __u32 passkey_notify;
321 __u8 passkey_entered;
Szymon Jancadc42662011-02-17 16:42:00 +0100322 __u16 disc_timeout;
Johan Hedberg51a8efd2012-01-16 06:10:31 +0200323 unsigned long flags;
Marcel Holtmann04837f62006-07-03 10:02:33 +0200324
Johan Hedberg03b555e2011-01-04 15:40:05 +0200325 __u8 remote_cap;
Johan Hedberg03b555e2011-01-04 15:40:05 +0200326 __u8 remote_auth;
Andrei Emeltchenko3161ae12012-09-27 17:26:11 +0300327 __u8 remote_id;
Vishal Agarwal6ec5bca2012-04-16 14:44:44 +0530328 bool flush_key;
Johan Hedberg03b555e2011-01-04 15:40:05 +0200329
Szymon Jancadc42662011-02-17 16:42:00 +0100330 unsigned int sent;
Marcel Holtmann04837f62006-07-03 10:02:33 +0200331
Linus Torvalds1da177e2005-04-16 15:20:36 -0700332 struct sk_buff_head data_q;
Gustavo F. Padovan2c33c062011-12-14 13:02:51 -0200333 struct list_head chan_list;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700334
Gustavo F. Padovan19c40e32011-06-17 13:03:21 -0300335 struct delayed_work disc_work;
Marcel Holtmann04837f62006-07-03 10:02:33 +0200336 struct timer_list idle_timer;
Johan Hedberg9f616562011-04-28 11:28:54 -0700337 struct timer_list auto_accept_timer;
Marcel Holtmann04837f62006-07-03 10:02:33 +0200338
Marcel Holtmannb219e3a2006-07-06 12:38:46 +0200339 struct device dev;
340
Linus Torvalds1da177e2005-04-16 15:20:36 -0700341 struct hci_dev *hdev;
342 void *l2cap_data;
343 void *sco_data;
Brian Gix2b64d152011-12-21 16:12:12 -0800344 void *smp_conn;
Andrei Emeltchenko9740e492012-05-29 13:59:02 +0300345 struct amp_mgr *amp_mgr;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700346
347 struct hci_conn *link;
Johan Hedberge9a416b2011-02-19 12:05:56 -0300348
349 void (*connect_cfm_cb) (struct hci_conn *conn, u8 status);
350 void (*security_cfm_cb) (struct hci_conn *conn, u8 status);
351 void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700352};
353
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200354struct hci_chan {
355 struct list_head list;
Andrei Emeltchenko42c4e532012-10-10 17:38:28 +0300356 __u16 handle;
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200357 struct hci_conn *conn;
358 struct sk_buff_head data_q;
359 unsigned int sent;
Mat Martineau168df8e2012-10-23 15:24:13 -0700360 __u8 state;
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200361};
362
Linus Torvalds1da177e2005-04-16 15:20:36 -0700363extern struct list_head hci_dev_list;
364extern struct list_head hci_cb_list;
365extern rwlock_t hci_dev_list_lock;
366extern rwlock_t hci_cb_list_lock;
367
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200368/* ----- HCI interface to upper protocols ----- */
369extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr);
Andrei Emeltchenko9e664632012-07-24 16:06:15 +0300370extern void l2cap_connect_cfm(struct hci_conn *hcon, u8 status);
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200371extern int l2cap_disconn_ind(struct hci_conn *hcon);
Andrei Emeltchenko9e664632012-07-24 16:06:15 +0300372extern void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason);
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200373extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt);
Gustavo Padovanc3c7ea62012-05-23 04:04:20 -0300374extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb,
375 u16 flags);
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200376
Frédéric Dalleau20714bf2012-11-21 10:51:12 +0100377extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags);
Andrei Emeltchenko9e664632012-07-24 16:06:15 +0300378extern void sco_connect_cfm(struct hci_conn *hcon, __u8 status);
379extern void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason);
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200380extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb);
381
Linus Torvalds1da177e2005-04-16 15:20:36 -0700382/* ----- Inquiry cache ----- */
Andrei Emeltchenko70f230202010-12-01 16:58:25 +0200383#define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */
384#define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */
Linus Torvalds1da177e2005-04-16 15:20:36 -0700385
Johan Hedberg30883512012-01-04 14:16:21 +0200386static inline void discovery_init(struct hci_dev *hdev)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700387{
Johan Hedbergff9ef572012-01-04 14:23:45 +0200388 hdev->discovery.state = DISCOVERY_STOPPED;
Johan Hedberg30883512012-01-04 14:16:21 +0200389 INIT_LIST_HEAD(&hdev->discovery.all);
390 INIT_LIST_HEAD(&hdev->discovery.unknown);
391 INIT_LIST_HEAD(&hdev->discovery.resolve);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700392}
393
Johan Hedberg30dc78e2012-01-04 15:44:20 +0200394bool hci_discovery_active(struct hci_dev *hdev);
395
Johan Hedbergff9ef572012-01-04 14:23:45 +0200396void hci_discovery_set_state(struct hci_dev *hdev, int state);
397
Linus Torvalds1da177e2005-04-16 15:20:36 -0700398static inline int inquiry_cache_empty(struct hci_dev *hdev)
399{
Johan Hedberg30883512012-01-04 14:16:21 +0200400 return list_empty(&hdev->discovery.all);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700401}
402
403static inline long inquiry_cache_age(struct hci_dev *hdev)
404{
Johan Hedberg30883512012-01-04 14:16:21 +0200405 struct discovery_state *c = &hdev->discovery;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700406 return jiffies - c->timestamp;
407}
408
409static inline long inquiry_entry_age(struct inquiry_entry *e)
410{
411 return jiffies - e->timestamp;
412}
413
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200414struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev,
Gustavo F. Padovan04124682012-03-08 01:25:00 -0300415 bdaddr_t *bdaddr);
Johan Hedberg561aafb2012-01-04 13:31:59 +0200416struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev,
Gustavo F. Padovan04124682012-03-08 01:25:00 -0300417 bdaddr_t *bdaddr);
Johan Hedberg30dc78e2012-01-04 15:44:20 +0200418struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev,
Gustavo F. Padovan04124682012-03-08 01:25:00 -0300419 bdaddr_t *bdaddr,
420 int state);
Johan Hedberga3d4e202012-01-09 00:53:02 +0200421void hci_inquiry_cache_update_resolve(struct hci_dev *hdev,
Gustavo F. Padovan04124682012-03-08 01:25:00 -0300422 struct inquiry_entry *ie);
Johan Hedberg31754052012-01-04 13:39:52 +0200423bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data,
Gustavo F. Padovan04124682012-03-08 01:25:00 -0300424 bool name_known, bool *ssp);
Andre Guedes1f9b9a52013-04-30 15:29:27 -0300425void hci_inquiry_cache_flush(struct hci_dev *hdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700426
427/* ----- HCI Connections ----- */
428enum {
429 HCI_CONN_AUTH_PEND,
Waldemar Rymarkiewicz19f8def2011-05-31 15:49:25 +0200430 HCI_CONN_REAUTH_PEND,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700431 HCI_CONN_ENCRYPT_PEND,
Marcel Holtmann04837f62006-07-03 10:02:33 +0200432 HCI_CONN_RSWITCH_PEND,
433 HCI_CONN_MODE_CHANGE_PEND,
Marcel Holtmanne73439d2010-07-26 10:06:00 -0400434 HCI_CONN_SCO_SETUP_PEND,
Vinicius Costa Gomesd26a2342011-08-19 21:06:51 -0300435 HCI_CONN_LE_SMP_PEND,
Johan Hedbergb644ba32012-01-17 21:48:47 +0200436 HCI_CONN_MGMT_CONNECTED,
Johan Hedberg58a681e2012-01-16 06:47:28 +0200437 HCI_CONN_SSP_ENABLED,
438 HCI_CONN_POWER_SAVE,
439 HCI_CONN_REMOTE_OOB,
Linus Torvalds1da177e2005-04-16 15:20:36 -0700440};
441
Johan Hedbergaa64a8b2012-01-18 21:33:12 +0200442static inline bool hci_conn_ssp_enabled(struct hci_conn *conn)
443{
444 struct hci_dev *hdev = conn->hdev;
Gustavo Padovanc3c7ea62012-05-23 04:04:20 -0300445 return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) &&
446 test_bit(HCI_CONN_SSP_ENABLED, &conn->flags);
Johan Hedbergaa64a8b2012-01-18 21:33:12 +0200447}
448
Linus Torvalds1da177e2005-04-16 15:20:36 -0700449static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
450{
451 struct hci_conn_hash *h = &hdev->conn_hash;
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200452 list_add_rcu(&c->list, &h->list);
Ville Tervofcd89c02011-02-10 22:38:47 -0300453 switch (c->type) {
454 case ACL_LINK:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700455 h->acl_num++;
Ville Tervofcd89c02011-02-10 22:38:47 -0300456 break;
Andrei Emeltchenkobd1eb662012-10-10 17:38:30 +0300457 case AMP_LINK:
458 h->amp_num++;
459 break;
Ville Tervofcd89c02011-02-10 22:38:47 -0300460 case LE_LINK:
461 h->le_num++;
462 break;
463 case SCO_LINK:
464 case ESCO_LINK:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700465 h->sco_num++;
Ville Tervofcd89c02011-02-10 22:38:47 -0300466 break;
467 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700468}
469
470static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
471{
472 struct hci_conn_hash *h = &hdev->conn_hash;
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200473
474 list_del_rcu(&c->list);
475 synchronize_rcu();
476
Ville Tervofcd89c02011-02-10 22:38:47 -0300477 switch (c->type) {
478 case ACL_LINK:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700479 h->acl_num--;
Ville Tervofcd89c02011-02-10 22:38:47 -0300480 break;
Andrei Emeltchenkobd1eb662012-10-10 17:38:30 +0300481 case AMP_LINK:
482 h->amp_num--;
483 break;
Ville Tervofcd89c02011-02-10 22:38:47 -0300484 case LE_LINK:
485 h->le_num--;
486 break;
487 case SCO_LINK:
488 case ESCO_LINK:
Linus Torvalds1da177e2005-04-16 15:20:36 -0700489 h->sco_num--;
Ville Tervofcd89c02011-02-10 22:38:47 -0300490 break;
491 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700492}
493
Luiz Augusto von Dentz52087a72011-08-17 16:23:00 +0300494static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
495{
496 struct hci_conn_hash *h = &hdev->conn_hash;
497 switch (type) {
498 case ACL_LINK:
499 return h->acl_num;
Andrei Emeltchenkobd1eb662012-10-10 17:38:30 +0300500 case AMP_LINK:
501 return h->amp_num;
Luiz Augusto von Dentz52087a72011-08-17 16:23:00 +0300502 case LE_LINK:
503 return h->le_num;
504 case SCO_LINK:
505 case ESCO_LINK:
506 return h->sco_num;
507 default:
508 return 0;
509 }
510}
511
Linus Torvalds1da177e2005-04-16 15:20:36 -0700512static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev,
Szymon Jancadc42662011-02-17 16:42:00 +0100513 __u16 handle)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700514{
515 struct hci_conn_hash *h = &hdev->conn_hash;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700516 struct hci_conn *c;
517
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200518 rcu_read_lock();
519
520 list_for_each_entry_rcu(c, &h->list, list) {
521 if (c->handle == handle) {
522 rcu_read_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700523 return c;
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200524 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700525 }
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200526 rcu_read_unlock();
527
Linus Torvalds1da177e2005-04-16 15:20:36 -0700528 return NULL;
529}
530
531static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev,
Szymon Jancadc42662011-02-17 16:42:00 +0100532 __u8 type, bdaddr_t *ba)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700533{
534 struct hci_conn_hash *h = &hdev->conn_hash;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700535 struct hci_conn *c;
536
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200537 rcu_read_lock();
538
539 list_for_each_entry_rcu(c, &h->list, list) {
540 if (c->type == type && !bacmp(&c->dst, ba)) {
541 rcu_read_unlock();
Linus Torvalds1da177e2005-04-16 15:20:36 -0700542 return c;
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200543 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700544 }
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200545
546 rcu_read_unlock();
547
Linus Torvalds1da177e2005-04-16 15:20:36 -0700548 return NULL;
549}
550
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200551static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev,
Szymon Jancadc42662011-02-17 16:42:00 +0100552 __u8 type, __u16 state)
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200553{
554 struct hci_conn_hash *h = &hdev->conn_hash;
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200555 struct hci_conn *c;
556
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200557 rcu_read_lock();
558
559 list_for_each_entry_rcu(c, &h->list, list) {
560 if (c->type == type && c->state == state) {
561 rcu_read_unlock();
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200562 return c;
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200563 }
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200564 }
Gustavo F. Padovanbf4c6322011-12-14 22:54:12 -0200565
566 rcu_read_unlock();
567
Marcel Holtmann4c67bc72006-10-15 17:30:56 +0200568 return NULL;
569}
570
Andre Guedesbed71742013-01-30 11:50:56 -0300571void hci_disconnect(struct hci_conn *conn, __u8 reason);
Marcel Holtmannb6a0dc82007-10-20 14:55:10 +0200572void hci_setup_sync(struct hci_conn *conn, __u16 handle);
Marcel Holtmanne73439d2010-07-26 10:06:00 -0400573void hci_sco_setup(struct hci_conn *conn, __u8 status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700574
575struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst);
Marcel Holtmanna9de9242007-10-20 13:33:56 +0200576int hci_conn_del(struct hci_conn *conn);
577void hci_conn_hash_flush(struct hci_dev *hdev);
578void hci_conn_check_pending(struct hci_dev *hdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700579
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200580struct hci_chan *hci_chan_create(struct hci_conn *conn);
Andrei Emeltchenko94720072012-09-06 15:05:43 +0300581void hci_chan_del(struct hci_chan *chan);
Gustavo F. Padovan2c33c062011-12-14 13:02:51 -0200582void hci_chan_list_flush(struct hci_conn *conn);
Andrei Emeltchenko42c4e532012-10-10 17:38:28 +0300583struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle);
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +0200584
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200585struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst,
Andre Guedesb12f62c2012-04-24 21:02:54 -0300586 __u8 dst_type, __u8 sec_level, __u8 auth_type);
Marcel Holtmanne7c29cb2008-09-09 07:19:20 +0200587int hci_conn_check_link_mode(struct hci_conn *conn);
Waldemar Rymarkiewiczb3b1b062011-05-06 09:42:31 +0200588int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level);
Marcel Holtmann0684e5f2009-02-09 02:48:38 +0100589int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700590int hci_conn_change_link_key(struct hci_conn *conn);
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100591int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700592
Jaikumar Ganesh14b12d02011-05-23 18:06:04 -0700593void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700594
David Herrmann8d123562013-04-06 20:28:39 +0200595/*
596 * hci_conn_get() and hci_conn_put() are used to control the life-time of an
597 * "hci_conn" object. They do not guarantee that the hci_conn object is running,
598 * working or anything else. They just guarantee that the object is available
599 * and can be dereferenced. So you can use its locks, local variables and any
600 * other constant data.
601 * Before accessing runtime data, you _must_ lock the object and then check that
602 * it is still running. As soon as you release the locks, the connection might
603 * get dropped, though.
604 *
605 * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control
606 * how long the underlying connection is held. So every channel that runs on the
607 * hci_conn object calls this to prevent the connection from disappearing. As
608 * long as you hold a device, you must also guarantee that you have a valid
609 * reference to the device via hci_conn_get() (or the initial reference from
610 * hci_conn_add()).
611 * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't
612 * break because nobody cares for that. But this means, we cannot use
613 * _get()/_drop() in it, but require the caller to have a valid ref (FIXME).
614 */
615
616static inline void hci_conn_get(struct hci_conn *conn)
617{
618 get_device(&conn->dev);
619}
620
621static inline void hci_conn_put(struct hci_conn *conn)
622{
623 put_device(&conn->dev);
624}
625
Linus Torvalds1da177e2005-04-16 15:20:36 -0700626static inline void hci_conn_hold(struct hci_conn *conn)
627{
Andrei Emeltchenko71becf02012-07-19 17:03:42 +0300628 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
Andrei Emeltchenko38b3fef2012-06-15 11:50:28 +0300629
Linus Torvalds1da177e2005-04-16 15:20:36 -0700630 atomic_inc(&conn->refcnt);
Andre Guedes2f304d12012-01-27 19:42:02 -0300631 cancel_delayed_work(&conn->disc_work);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700632}
633
David Herrmann76a68ba2013-04-06 20:28:37 +0200634static inline void hci_conn_drop(struct hci_conn *conn)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700635{
Andrei Emeltchenko71becf02012-07-19 17:03:42 +0300636 BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt));
Andrei Emeltchenko38b3fef2012-06-15 11:50:28 +0300637
Linus Torvalds1da177e2005-04-16 15:20:36 -0700638 if (atomic_dec_and_test(&conn->refcnt)) {
Marcel Holtmann04837f62006-07-03 10:02:33 +0200639 unsigned long timeo;
Andrei Emeltchenko716e4ab2012-10-10 17:38:31 +0300640
641 switch (conn->type) {
642 case ACL_LINK:
643 case LE_LINK:
Marcel Holtmann04837f62006-07-03 10:02:33 +0200644 del_timer(&conn->idle_timer);
Marcel Holtmann6ac59342006-09-26 09:43:48 +0200645 if (conn->state == BT_CONNECTED) {
Andrei Emeltchenko5f246e82012-06-11 11:13:07 +0300646 timeo = conn->disc_timeout;
Marcel Holtmann6ac59342006-09-26 09:43:48 +0200647 if (!conn->out)
Marcel Holtmann052b30b2009-04-26 20:01:22 +0200648 timeo *= 2;
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200649 } else {
Marcel Holtmann6ac59342006-09-26 09:43:48 +0200650 timeo = msecs_to_jiffies(10);
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200651 }
Andrei Emeltchenko716e4ab2012-10-10 17:38:31 +0300652 break;
653
654 case AMP_LINK:
655 timeo = conn->disc_timeout;
656 break;
657
658 default:
Marcel Holtmann04837f62006-07-03 10:02:33 +0200659 timeo = msecs_to_jiffies(10);
Andrei Emeltchenko716e4ab2012-10-10 17:38:31 +0300660 break;
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200661 }
Andrei Emeltchenko716e4ab2012-10-10 17:38:31 +0300662
Andre Guedes2f304d12012-01-27 19:42:02 -0300663 cancel_delayed_work(&conn->disc_work);
Gustavo F. Padovan19c40e32011-06-17 13:03:21 -0300664 queue_delayed_work(conn->hdev->workqueue,
Andrei Emeltchenko716e4ab2012-10-10 17:38:31 +0300665 &conn->disc_work, timeo);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700666 }
667}
668
Linus Torvalds1da177e2005-04-16 15:20:36 -0700669/* ----- HCI Devices ----- */
David Herrmanndc946bd2012-01-07 15:47:24 +0100670static inline void hci_dev_put(struct hci_dev *d)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700671{
Andrei Emeltchenko376261a2012-09-06 15:05:45 +0300672 BT_DBG("%s orig refcnt %d", d->name,
673 atomic_read(&d->dev.kobj.kref.refcount));
674
David Herrmann4c724c72012-01-07 15:47:23 +0100675 put_device(&d->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700676}
677
David Herrmanndc946bd2012-01-07 15:47:24 +0100678static inline struct hci_dev *hci_dev_hold(struct hci_dev *d)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700679{
Andrei Emeltchenko376261a2012-09-06 15:05:45 +0300680 BT_DBG("%s orig refcnt %d", d->name,
681 atomic_read(&d->dev.kobj.kref.refcount));
682
David Herrmann4c724c72012-01-07 15:47:23 +0100683 get_device(&d->dev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700684 return d;
685}
686
Gustavo F. Padovan09fd0de2011-06-17 13:03:21 -0300687#define hci_dev_lock(d) mutex_lock(&d->lock)
688#define hci_dev_unlock(d) mutex_unlock(&d->lock)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700689
David Herrmannaa2b86d2012-02-09 21:58:30 +0100690#define to_hci_dev(d) container_of(d, struct hci_dev, dev)
David Herrmann3dc07322012-02-09 21:58:33 +0100691#define to_hci_conn(c) container_of(c, struct hci_conn, dev)
David Herrmannaa2b86d2012-02-09 21:58:30 +0100692
David Herrmann155961e2012-02-09 21:58:32 +0100693static inline void *hci_get_drvdata(struct hci_dev *hdev)
694{
695 return dev_get_drvdata(&hdev->dev);
696}
697
698static inline void hci_set_drvdata(struct hci_dev *hdev, void *data)
699{
700 dev_set_drvdata(&hdev->dev, data);
701}
702
Andrei Emeltchenko8598d062012-05-29 13:59:09 +0300703/* hci_dev_list shall be locked */
704static inline uint8_t __hci_num_ctrl(void)
705{
706 uint8_t count = 0;
707 struct list_head *p;
708
709 list_for_each(p, &hci_dev_list) {
710 count++;
711 }
712
713 return count;
714}
715
Linus Torvalds1da177e2005-04-16 15:20:36 -0700716struct hci_dev *hci_dev_get(int index);
Johan Hedberg0c0afed2012-11-01 13:27:26 +0200717struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700718
719struct hci_dev *hci_alloc_dev(void);
720void hci_free_dev(struct hci_dev *hdev);
721int hci_register_dev(struct hci_dev *hdev);
David Herrmann59735632011-10-26 10:43:19 +0200722void hci_unregister_dev(struct hci_dev *hdev);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700723int hci_suspend_dev(struct hci_dev *hdev);
724int hci_resume_dev(struct hci_dev *hdev);
725int hci_dev_open(__u16 dev);
726int hci_dev_close(__u16 dev);
727int hci_dev_reset(__u16 dev);
728int hci_dev_reset_stat(__u16 dev);
729int hci_dev_cmd(unsigned int cmd, void __user *arg);
730int hci_get_dev_list(void __user *arg);
731int hci_get_dev_info(void __user *arg);
732int hci_get_conn_list(void __user *arg);
733int hci_get_conn_info(struct hci_dev *hdev, void __user *arg);
Marcel Holtmann40be4922008-07-14 20:13:50 +0200734int hci_get_auth_info(struct hci_dev *hdev, void __user *arg);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700735int hci_inquiry(void __user *arg);
736
Gustavo Padovanc3c7ea62012-05-23 04:04:20 -0300737struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev,
738 bdaddr_t *bdaddr);
Johan Hedbergf0358562010-05-18 13:20:32 +0200739int hci_blacklist_clear(struct hci_dev *hdev);
Johan Hedberg88c1fe42012-02-09 15:56:11 +0200740int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
741int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
Johan Hedbergf0358562010-05-18 13:20:32 +0200742
Johan Hedberg2aeb9a12011-01-04 12:08:51 +0200743int hci_uuids_clear(struct hci_dev *hdev);
744
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200745int hci_link_keys_clear(struct hci_dev *hdev);
746struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
Johan Hedbergd25e28a2011-04-28 11:28:59 -0700747int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key,
Gustavo F. Padovan04124682012-03-08 01:25:00 -0300748 bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len);
Vinicius Costa Gomesc9839a12012-02-02 21:08:01 -0300749struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]);
750int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type,
Andrei Emeltchenko9a006652012-03-09 12:12:12 +0200751 int new_key, u8 authenticated, u8 tk[16], u8 enc_size,
752 __le16 ediv, u8 rand[8]);
Vinicius Costa Gomesc9839a12012-02-02 21:08:01 -0300753struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -0300754 u8 addr_type);
Vinicius Costa Gomesb899efa2012-02-02 21:08:00 -0300755int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr);
Vinicius Costa Gomesb899efa2012-02-02 21:08:00 -0300756int hci_smp_ltks_clear(struct hci_dev *hdev);
Johan Hedberg55ed8ca2011-01-17 14:41:05 +0200757int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr);
758
Szymon Janc2763eda2011-03-22 13:12:22 +0100759int hci_remote_oob_data_clear(struct hci_dev *hdev);
760struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev,
761 bdaddr_t *bdaddr);
762int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash,
763 u8 *randomizer);
764int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr);
765
Linus Torvalds1da177e2005-04-16 15:20:36 -0700766void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb);
767
Marcel Holtmann76bca882009-11-18 00:40:39 +0100768int hci_recv_frame(struct sk_buff *skb);
Marcel Holtmannef222012007-07-11 06:42:04 +0200769int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count);
Suraj Sumangala99811512010-07-14 13:02:19 +0530770int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count);
Marcel Holtmannef222012007-07-11 06:42:04 +0200771
David Herrmann0ac7e702011-10-08 14:58:47 +0200772void hci_init_sysfs(struct hci_dev *hdev);
David Herrmannce242972011-10-08 14:58:48 +0200773int hci_add_sysfs(struct hci_dev *hdev);
774void hci_del_sysfs(struct hci_dev *hdev);
Marcel Holtmanna67e8992009-05-02 18:24:06 -0700775void hci_conn_init_sysfs(struct hci_conn *conn);
Marcel Holtmannb219e3a2006-07-06 12:38:46 +0200776void hci_conn_add_sysfs(struct hci_conn *conn);
777void hci_conn_del_sysfs(struct hci_conn *conn);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700778
David Herrmann6935e0f2012-03-09 15:53:42 +0100779#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev))
Linus Torvalds1da177e2005-04-16 15:20:36 -0700780
781/* ----- LMP capabilities ----- */
Johan Hedbergcad718e2013-04-17 15:00:51 +0300782#define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT)
783#define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH)
784#define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD)
785#define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF)
786#define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK)
787#define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ)
788#define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO)
789#define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR))
790#define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE)
791#define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR)
792#define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC)
793#define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ)
794#define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR))
795#define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR)
796#define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH)
797#define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO)
798#define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR)
799#define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700800
Andre Guedeseead27d2011-06-30 19:20:55 -0300801/* ----- Extended LMP capabilities ----- */
Johan Hedbergcad718e2013-04-17 15:00:51 +0300802#define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP)
803#define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE))
804#define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR))
Andre Guedeseead27d2011-06-30 19:20:55 -0300805
Andrei Emeltchenko5d054162012-11-29 17:46:05 +0200806/* returns true if at least one AMP active */
807static inline bool hci_amp_capable(void)
808{
809 struct hci_dev *hdev;
810 bool ret = false;
811
812 read_lock(&hci_dev_list_lock);
813 list_for_each_entry(hdev, &hci_dev_list, list)
814 if (hdev->amp_type == HCI_AMP &&
815 test_bit(HCI_UP, &hdev->flags))
816 ret = true;
817 read_unlock(&hci_dev_list_lock);
818
819 return ret;
820}
821
Linus Torvalds1da177e2005-04-16 15:20:36 -0700822/* ----- HCI protocols ----- */
Frédéric Dalleau20714bf2012-11-21 10:51:12 +0100823#define HCI_PROTO_DEFER 0x01
824
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200825static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr,
Frédéric Dalleau20714bf2012-11-21 10:51:12 +0100826 __u8 type, __u8 *flags)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700827{
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200828 switch (type) {
829 case ACL_LINK:
830 return l2cap_connect_ind(hdev, bdaddr);
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100831
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200832 case SCO_LINK:
833 case ESCO_LINK:
Frédéric Dalleau20714bf2012-11-21 10:51:12 +0100834 return sco_connect_ind(hdev, bdaddr, flags);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700835
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200836 default:
837 BT_ERR("unknown link type %d", type);
838 return -EINVAL;
839 }
Linus Torvalds1da177e2005-04-16 15:20:36 -0700840}
841
842static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
843{
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200844 switch (conn->type) {
845 case ACL_LINK:
846 case LE_LINK:
847 l2cap_connect_cfm(conn, status);
848 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700849
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200850 case SCO_LINK:
851 case ESCO_LINK:
852 sco_connect_cfm(conn, status);
853 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700854
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200855 default:
856 BT_ERR("unknown link type %d", conn->type);
857 break;
858 }
Johan Hedberge9a416b2011-02-19 12:05:56 -0300859
860 if (conn->connect_cfm_cb)
861 conn->connect_cfm_cb(conn, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700862}
863
Marcel Holtmann2950f212009-02-12 14:02:50 +0100864static inline int hci_proto_disconn_ind(struct hci_conn *conn)
865{
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200866 if (conn->type != ACL_LINK && conn->type != LE_LINK)
867 return HCI_ERROR_REMOTE_USER_TERM;
Marcel Holtmann2950f212009-02-12 14:02:50 +0100868
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200869 return l2cap_disconn_ind(conn);
Marcel Holtmann2950f212009-02-12 14:02:50 +0100870}
871
872static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700873{
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200874 switch (conn->type) {
875 case ACL_LINK:
876 case LE_LINK:
877 l2cap_disconn_cfm(conn, reason);
878 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700879
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200880 case SCO_LINK:
881 case ESCO_LINK:
882 sco_disconn_cfm(conn, reason);
883 break;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700884
Andrei Emeltchenkobd1eb662012-10-10 17:38:30 +0300885 /* L2CAP would be handled for BREDR chan */
886 case AMP_LINK:
887 break;
888
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200889 default:
890 BT_ERR("unknown link type %d", conn->type);
891 break;
892 }
Johan Hedberge9a416b2011-02-19 12:05:56 -0300893
894 if (conn->disconn_cfm_cb)
895 conn->disconn_cfm_cb(conn, reason);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700896}
897
898static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
899{
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100900 __u8 encrypt;
901
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200902 if (conn->type != ACL_LINK && conn->type != LE_LINK)
903 return;
904
Johan Hedberg51a8efd2012-01-16 06:10:31 +0200905 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100906 return;
907
908 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200909 l2cap_security_cfm(conn, status, encrypt);
Johan Hedberge9a416b2011-02-19 12:05:56 -0300910
911 if (conn->security_cfm_cb)
912 conn->security_cfm_cb(conn, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700913}
914
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200915static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status,
916 __u8 encrypt)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700917{
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200918 if (conn->type != ACL_LINK && conn->type != LE_LINK)
919 return;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700920
Ulisses Furquim686ebf22011-12-21 10:11:33 -0200921 l2cap_security_cfm(conn, status, encrypt);
Johan Hedberge9a416b2011-02-19 12:05:56 -0300922
923 if (conn->security_cfm_cb)
924 conn->security_cfm_cb(conn, status);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700925}
926
Linus Torvalds1da177e2005-04-16 15:20:36 -0700927/* ----- HCI callbacks ----- */
928struct hci_cb {
929 struct list_head list;
930
931 char *name;
932
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200933 void (*security_cfm) (struct hci_conn *conn, __u8 status,
934 __u8 encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700935 void (*key_change_cfm) (struct hci_conn *conn, __u8 status);
936 void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role);
937};
938
939static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
940{
Denis Kirjanov711584e2012-10-22 17:22:01 +0400941 struct hci_cb *cb;
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100942 __u8 encrypt;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700943
944 hci_proto_auth_cfm(conn, status);
945
Johan Hedberg51a8efd2012-01-16 06:10:31 +0200946 if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags))
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100947 return;
948
949 encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
950
Gustavo F. Padovanf20d09d2011-12-22 16:30:27 -0200951 read_lock(&hci_cb_list_lock);
Denis Kirjanov711584e2012-10-22 17:22:01 +0400952 list_for_each_entry(cb, &hci_cb_list, list) {
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100953 if (cb->security_cfm)
954 cb->security_cfm(conn, status, encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700955 }
Gustavo F. Padovanf20d09d2011-12-22 16:30:27 -0200956 read_unlock(&hci_cb_list_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700957}
958
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200959static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status,
960 __u8 encrypt)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700961{
Denis Kirjanov711584e2012-10-22 17:22:01 +0400962 struct hci_cb *cb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700963
Marcel Holtmann435fef22009-02-09 03:55:28 +0100964 if (conn->sec_level == BT_SECURITY_SDP)
965 conn->sec_level = BT_SECURITY_LOW;
966
Vinicius Costa Gomes88167ae2011-06-09 18:50:51 -0300967 if (conn->pending_sec_level > conn->sec_level)
968 conn->sec_level = conn->pending_sec_level;
969
Marcel Holtmann9719f8a2008-07-14 20:13:45 +0200970 hci_proto_encrypt_cfm(conn, status, encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700971
Gustavo F. Padovanf20d09d2011-12-22 16:30:27 -0200972 read_lock(&hci_cb_list_lock);
Denis Kirjanov711584e2012-10-22 17:22:01 +0400973 list_for_each_entry(cb, &hci_cb_list, list) {
Marcel Holtmann8c1b2352009-01-15 21:58:04 +0100974 if (cb->security_cfm)
975 cb->security_cfm(conn, status, encrypt);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700976 }
Gustavo F. Padovanf20d09d2011-12-22 16:30:27 -0200977 read_unlock(&hci_cb_list_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700978}
979
980static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
981{
Denis Kirjanov711584e2012-10-22 17:22:01 +0400982 struct hci_cb *cb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700983
Gustavo F. Padovanf20d09d2011-12-22 16:30:27 -0200984 read_lock(&hci_cb_list_lock);
Denis Kirjanov711584e2012-10-22 17:22:01 +0400985 list_for_each_entry(cb, &hci_cb_list, list) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700986 if (cb->key_change_cfm)
987 cb->key_change_cfm(conn, status);
988 }
Gustavo F. Padovanf20d09d2011-12-22 16:30:27 -0200989 read_unlock(&hci_cb_list_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700990}
991
Waldemar Rymarkiewicz5a9d0a32011-06-07 11:18:06 +0200992static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status,
993 __u8 role)
Linus Torvalds1da177e2005-04-16 15:20:36 -0700994{
Denis Kirjanov711584e2012-10-22 17:22:01 +0400995 struct hci_cb *cb;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700996
Gustavo F. Padovanf20d09d2011-12-22 16:30:27 -0200997 read_lock(&hci_cb_list_lock);
Denis Kirjanov711584e2012-10-22 17:22:01 +0400998 list_for_each_entry(cb, &hci_cb_list, list) {
Linus Torvalds1da177e2005-04-16 15:20:36 -0700999 if (cb->role_switch_cfm)
1000 cb->role_switch_cfm(conn, status, role);
1001 }
Gustavo F. Padovanf20d09d2011-12-22 16:30:27 -02001002 read_unlock(&hci_cb_list_lock);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001003}
1004
Johan Hedberg6759a672012-01-15 20:51:14 +02001005static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type)
1006{
Johan Hedberg84d9d072012-03-26 14:21:41 +03001007 size_t parsed = 0;
Johan Hedberg6759a672012-01-15 20:51:14 +02001008
Johan Hedberg6c0c3312012-03-26 14:21:42 +03001009 if (data_len < 2)
1010 return false;
1011
Johan Hedberg84d9d072012-03-26 14:21:41 +03001012 while (parsed < data_len - 1) {
1013 u8 field_len = data[0];
Johan Hedberg6759a672012-01-15 20:51:14 +02001014
1015 if (field_len == 0)
1016 break;
1017
1018 parsed += field_len + 1;
1019
1020 if (parsed > data_len)
1021 break;
1022
1023 if (data[1] == type)
1024 return true;
1025
1026 data += field_len + 1;
1027 }
1028
1029 return false;
1030}
1031
Vishal Agarwal9d939d92012-04-26 19:19:56 +05301032static inline size_t eir_get_length(u8 *eir, size_t eir_len)
1033{
1034 size_t parsed = 0;
1035
1036 while (parsed < eir_len) {
1037 u8 field_len = eir[0];
1038
1039 if (field_len == 0)
1040 return parsed;
1041
1042 parsed += field_len + 1;
1043 eir += field_len + 1;
1044 }
1045
1046 return eir_len;
1047}
1048
Johan Hedberg1dc06092012-01-15 21:01:23 +02001049static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001050 u8 data_len)
Johan Hedberg1dc06092012-01-15 21:01:23 +02001051{
1052 eir[eir_len++] = sizeof(type) + data_len;
1053 eir[eir_len++] = type;
1054 memcpy(&eir[eir_len], data, data_len);
1055 eir_len += data_len;
1056
1057 return eir_len;
1058}
1059
Linus Torvalds1da177e2005-04-16 15:20:36 -07001060int hci_register_cb(struct hci_cb *hcb);
1061int hci_unregister_cb(struct hci_cb *hcb);
1062
Johan Hedberg3119ae92013-03-05 20:37:44 +02001063struct hci_request {
1064 struct hci_dev *hdev;
1065 struct sk_buff_head cmd_q;
Andre Guedes5d73e032013-03-08 11:20:16 -03001066
1067 /* If something goes wrong when building the HCI request, the error
1068 * value is stored in this field.
1069 */
1070 int err;
Johan Hedberg3119ae92013-03-05 20:37:44 +02001071};
1072
1073void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
1074int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
Johan Hedberg07dc93d2013-04-19 10:14:51 +03001075void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
1076 const void *param);
1077void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
1078 const void *param, u8 event);
Johan Hedberg9238f362013-03-05 20:37:48 +02001079void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status);
Johan Hedberg3119ae92013-03-05 20:37:44 +02001080
Johan Hedberg75e84b72013-04-02 13:35:04 +03001081struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen,
Johan Hedberg07dc93d2013-04-19 10:14:51 +03001082 const void *param, u32 timeout);
Johan Hedberg7b1abbb2013-04-03 21:54:47 +03001083struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen,
Johan Hedberg07dc93d2013-04-19 10:14:51 +03001084 const void *param, u8 event, u32 timeout);
Johan Hedberg75e84b72013-04-02 13:35:04 +03001085
Johan Hedberg07dc93d2013-04-19 10:14:51 +03001086int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen,
1087 const void *param);
Luiz Augusto von Dentz73d80de2011-11-02 15:52:01 +02001088void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags);
Gustavo F. Padovan0d861d82010-05-01 16:15:35 -03001089void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001090
Marcel Holtmanna9de9242007-10-20 13:33:56 +02001091void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001092
Linus Torvalds1da177e2005-04-16 15:20:36 -07001093/* ----- HCI Sockets ----- */
Marcel Holtmann470fe1b2012-02-20 14:50:30 +01001094void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb);
1095void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk);
Marcel Holtmanncd82e612012-02-20 20:34:38 +01001096void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb);
Linus Torvalds1da177e2005-04-16 15:20:36 -07001097
Marcel Holtmann040030e2012-02-20 14:50:37 +01001098void hci_sock_dev_event(struct hci_dev *hdev, int event);
1099
Johan Hedberg03811012010-12-08 00:21:06 +02001100/* Management interface */
Andre Guedes591f47f2012-04-24 21:02:49 -03001101#define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR))
1102#define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \
1103 BIT(BDADDR_LE_RANDOM))
1104#define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \
1105 BIT(BDADDR_LE_PUBLIC) | \
1106 BIT(BDADDR_LE_RANDOM))
Andre Guedesf39799f2012-02-17 20:39:35 -03001107
Andre Guedes0d8cc932013-04-30 15:29:31 -03001108/* These LE scan and inquiry parameters were chosen according to LE General
1109 * Discovery Procedure specification.
1110 */
1111#define DISCOV_LE_SCAN_WIN 0x12
1112#define DISCOV_LE_SCAN_INT 0x12
1113#define DISCOV_LE_TIMEOUT msecs_to_jiffies(10240)
1114#define DISCOV_INTERLEAVED_TIMEOUT msecs_to_jiffies(5120)
1115#define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04
1116#define DISCOV_BREDR_INQUIRY_LEN 0x08
1117
Johan Hedberg03811012010-12-08 00:21:06 +02001118int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
Johan Hedberg744cf192011-11-08 20:40:14 +02001119int mgmt_index_added(struct hci_dev *hdev);
1120int mgmt_index_removed(struct hci_dev *hdev);
Johan Hedberg96570ff2013-05-29 09:51:29 +03001121int mgmt_set_powered_failed(struct hci_dev *hdev, int err);
Johan Hedberg744cf192011-11-08 20:40:14 +02001122int mgmt_powered(struct hci_dev *hdev, u8 powered);
1123int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
1124int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
1125int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status);
1126int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key,
Vishal Agarwal745c0ce2012-04-13 17:43:22 +05301127 bool persistent);
Johan Hedbergafc747a2012-01-15 18:11:07 +02001128int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001129 u8 addr_type, u32 flags, u8 *name, u8 name_len,
1130 u8 *dev_class);
Johan Hedbergafc747a2012-01-15 18:11:07 +02001131int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr,
Mikel Astizf0d6a0e2012-08-09 09:52:30 +02001132 u8 link_type, u8 addr_type, u8 reason);
Johan Hedberg88c3df12012-02-09 14:27:38 +02001133int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001134 u8 link_type, u8 addr_type, u8 status);
Johan Hedberg48264f02011-11-09 13:58:58 +02001135int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001136 u8 addr_type, u8 status);
Johan Hedberg744cf192011-11-08 20:40:14 +02001137int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure);
1138int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001139 u8 status);
Johan Hedberg744cf192011-11-08 20:40:14 +02001140int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001141 u8 status);
Johan Hedberg744cf192011-11-08 20:40:14 +02001142int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001143 u8 link_type, u8 addr_type, __le32 value,
1144 u8 confirm_hint);
Johan Hedberg744cf192011-11-08 20:40:14 +02001145int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001146 u8 link_type, u8 addr_type, u8 status);
Johan Hedberg272d90d2012-02-09 15:26:12 +02001147int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001148 u8 link_type, u8 addr_type, u8 status);
Johan Hedberg272d90d2012-02-09 15:26:12 +02001149int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001150 u8 link_type, u8 addr_type);
Brian Gix604086b2011-11-23 08:28:33 -08001151int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001152 u8 link_type, u8 addr_type, u8 status);
Johan Hedberg272d90d2012-02-09 15:26:12 +02001153int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001154 u8 link_type, u8 addr_type, u8 status);
Johan Hedberg92a25252012-09-06 18:39:26 +03001155int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr,
1156 u8 link_type, u8 addr_type, u32 passkey,
1157 u8 entered);
Johan Hedbergbab73cb2012-02-09 16:07:29 +02001158int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001159 u8 addr_type, u8 status);
Johan Hedberg33ef95e2012-02-16 23:56:27 +02001160int mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status);
Johan Hedbergc0ecddc2012-02-22 12:38:31 +02001161int mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
Marcel Holtmann7f9a9032012-02-22 18:38:01 +01001162int mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001163 u8 status);
Johan Hedberg744cf192011-11-08 20:40:14 +02001164int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status);
1165int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001166 u8 *randomizer, u8 status);
Johan Hedberg06199cf2012-02-22 16:37:11 +02001167int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status);
Johan Hedberg48264f02011-11-09 13:58:58 +02001168int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001169 u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name,
1170 u8 ssp, u8 *eir, u16 eir_len);
Johan Hedbergb644ba32012-01-17 21:48:47 +02001171int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type,
Gustavo F. Padovan04124682012-03-08 01:25:00 -03001172 u8 addr_type, s8 rssi, u8 *name, u8 name_len);
Johan Hedberg744cf192011-11-08 20:40:14 +02001173int mgmt_discovering(struct hci_dev *hdev, u8 discovering);
Johan Hedberg88c1fe42012-02-09 15:56:11 +02001174int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
1175int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type);
Andrei Emeltchenkobb4b2a92012-07-19 17:03:40 +03001176bool mgmt_valid_hdev(struct hci_dev *hdev);
Vinicius Costa Gomes346af672012-02-02 21:08:02 -03001177int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent);
1178
Linus Torvalds1da177e2005-04-16 15:20:36 -07001179/* HCI info for socket */
1180#define hci_pi(sk) ((struct hci_pinfo *) sk)
1181
1182struct hci_pinfo {
1183 struct bt_sock bt;
1184 struct hci_dev *hdev;
1185 struct hci_filter filter;
1186 __u32 cmsg_mask;
Johan Hedbergc02178d2010-12-08 00:21:05 +02001187 unsigned short channel;
Linus Torvalds1da177e2005-04-16 15:20:36 -07001188};
1189
1190/* HCI security filter */
1191#define HCI_SFLT_MAX_OGF 5
1192
1193struct hci_sec_filter {
1194 __u32 type_mask;
1195 __u32 event_mask[2];
1196 __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
1197};
1198
1199/* ----- HCI requests ----- */
1200#define HCI_REQ_DONE 0
1201#define HCI_REQ_PEND 1
1202#define HCI_REQ_CANCELED 2
1203
Thomas Gleixnera6a67ef2009-07-26 08:18:19 +00001204#define hci_req_lock(d) mutex_lock(&d->req_lock)
1205#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
Linus Torvalds1da177e2005-04-16 15:20:36 -07001206
Johan Hedberg04b4edc2013-03-15 17:07:01 -05001207void hci_update_ad(struct hci_request *req);
1208
Claudio Takahasi2ce603e2011-02-16 20:44:53 -02001209void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max,
1210 u16 latency, u16 to_multiplier);
Vinicius Costa Gomesa7a595f2011-06-09 18:50:47 -03001211void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8],
1212 __u8 ltk[16]);
Andre Guedes2519a1f2011-11-07 11:45:24 -03001213
Andre Guedes31f79562012-04-24 21:02:53 -03001214u8 bdaddr_to_le(u8 bdaddr_type);
1215
Linus Torvalds1da177e2005-04-16 15:20:36 -07001216#endif /* __HCI_CORE_H */