Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 1 | /* |
| 2 | BlueZ - Bluetooth protocol stack for Linux |
| 3 | Copyright (C) 2000-2001 Qualcomm Incorporated |
| 4 | |
| 5 | Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License version 2 as |
| 9 | published by the Free Software Foundation; |
| 10 | |
| 11 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| 12 | OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 13 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. |
| 14 | IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY |
| 15 | CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
| 16 | WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| 17 | ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| 18 | OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| 19 | |
| 20 | ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
| 21 | COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
| 22 | SOFTWARE IS DISCLAIMED. |
| 23 | */ |
| 24 | |
| 25 | #ifndef __HCI_CORE_H |
| 26 | #define __HCI_CORE_H |
| 27 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 28 | #include <net/bluetooth/hci.h> |
| 29 | |
| 30 | /* HCI upper protocols */ |
| 31 | #define HCI_PROTO_L2CAP 0 |
| 32 | #define HCI_PROTO_SCO 1 |
| 33 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 34 | /* HCI Core structures */ |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 35 | struct inquiry_data { |
| 36 | bdaddr_t bdaddr; |
| 37 | __u8 pscan_rep_mode; |
| 38 | __u8 pscan_period_mode; |
| 39 | __u8 pscan_mode; |
| 40 | __u8 dev_class[3]; |
Marcel Holtmann | 1ebb925 | 2005-11-08 09:57:21 -0800 | [diff] [blame] | 41 | __le16 clock_offset; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 42 | __s8 rssi; |
Marcel Holtmann | 41a9621 | 2008-07-14 20:13:48 +0200 | [diff] [blame] | 43 | __u8 ssp_mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 44 | }; |
| 45 | |
| 46 | struct inquiry_entry { |
| 47 | struct inquiry_entry *next; |
| 48 | __u32 timestamp; |
| 49 | struct inquiry_data data; |
| 50 | }; |
| 51 | |
| 52 | struct inquiry_cache { |
| 53 | spinlock_t lock; |
| 54 | __u32 timestamp; |
| 55 | struct inquiry_entry *list; |
| 56 | }; |
| 57 | |
| 58 | struct hci_conn_hash { |
| 59 | struct list_head list; |
| 60 | spinlock_t lock; |
| 61 | unsigned int acl_num; |
| 62 | unsigned int sco_num; |
| 63 | }; |
| 64 | |
| 65 | struct hci_dev { |
| 66 | struct list_head list; |
| 67 | spinlock_t lock; |
| 68 | atomic_t refcnt; |
| 69 | |
| 70 | char name[8]; |
| 71 | unsigned long flags; |
| 72 | __u16 id; |
| 73 | __u8 type; |
| 74 | bdaddr_t bdaddr; |
Marcel Holtmann | a9de924 | 2007-10-20 13:33:56 +0200 | [diff] [blame] | 75 | __u8 dev_name[248]; |
| 76 | __u8 dev_class[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 77 | __u8 features[8]; |
Marcel Holtmann | a9de924 | 2007-10-20 13:33:56 +0200 | [diff] [blame] | 78 | __u8 commands[64]; |
Marcel Holtmann | 333140b | 2008-07-14 20:13:48 +0200 | [diff] [blame] | 79 | __u8 ssp_mode; |
Marcel Holtmann | 1143e5a | 2006-09-23 09:57:20 +0200 | [diff] [blame] | 80 | __u8 hci_ver; |
| 81 | __u16 hci_rev; |
| 82 | __u16 manufacturer; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 83 | __u16 voice_setting; |
| 84 | |
| 85 | __u16 pkt_type; |
Marcel Holtmann | 5b7f990 | 2007-07-11 09:51:55 +0200 | [diff] [blame] | 86 | __u16 esco_type; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 87 | __u16 link_policy; |
| 88 | __u16 link_mode; |
| 89 | |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 90 | __u32 idle_timeout; |
| 91 | __u16 sniff_min_interval; |
| 92 | __u16 sniff_max_interval; |
| 93 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 94 | unsigned long quirks; |
| 95 | |
| 96 | atomic_t cmd_cnt; |
| 97 | unsigned int acl_cnt; |
| 98 | unsigned int sco_cnt; |
| 99 | |
| 100 | unsigned int acl_mtu; |
| 101 | unsigned int sco_mtu; |
| 102 | unsigned int acl_pkts; |
| 103 | unsigned int sco_pkts; |
| 104 | |
| 105 | unsigned long cmd_last_tx; |
| 106 | unsigned long acl_last_tx; |
| 107 | unsigned long sco_last_tx; |
| 108 | |
| 109 | struct tasklet_struct cmd_task; |
| 110 | struct tasklet_struct rx_task; |
| 111 | struct tasklet_struct tx_task; |
| 112 | |
| 113 | struct sk_buff_head rx_q; |
| 114 | struct sk_buff_head raw_q; |
| 115 | struct sk_buff_head cmd_q; |
| 116 | |
| 117 | struct sk_buff *sent_cmd; |
Marcel Holtmann | ef22201 | 2007-07-11 06:42:04 +0200 | [diff] [blame] | 118 | struct sk_buff *reassembly[3]; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 119 | |
Thomas Gleixner | a6a67ef | 2009-07-26 08:18:19 +0000 | [diff] [blame] | 120 | struct mutex req_lock; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 121 | wait_queue_head_t req_wait_q; |
| 122 | __u32 req_status; |
| 123 | __u32 req_result; |
| 124 | |
| 125 | struct inquiry_cache inq_cache; |
| 126 | struct hci_conn_hash conn_hash; |
| 127 | |
| 128 | struct hci_dev_stats stat; |
| 129 | |
| 130 | struct sk_buff_head driver_init; |
| 131 | |
| 132 | void *driver_data; |
| 133 | void *core_data; |
| 134 | |
| 135 | atomic_t promisc; |
| 136 | |
Marcel Holtmann | a91f2e3 | 2006-07-03 10:02:41 +0200 | [diff] [blame] | 137 | struct device *parent; |
| 138 | struct device dev; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 139 | |
Marcel Holtmann | 611b30f | 2009-06-08 14:41:38 +0200 | [diff] [blame] | 140 | struct rfkill *rfkill; |
| 141 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 142 | struct module *owner; |
| 143 | |
| 144 | int (*open)(struct hci_dev *hdev); |
| 145 | int (*close)(struct hci_dev *hdev); |
| 146 | int (*flush)(struct hci_dev *hdev); |
| 147 | int (*send)(struct sk_buff *skb); |
| 148 | void (*destruct)(struct hci_dev *hdev); |
| 149 | void (*notify)(struct hci_dev *hdev, unsigned int evt); |
| 150 | int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); |
| 151 | }; |
| 152 | |
| 153 | struct hci_conn { |
| 154 | struct list_head list; |
| 155 | |
| 156 | atomic_t refcnt; |
| 157 | spinlock_t lock; |
| 158 | |
| 159 | bdaddr_t dst; |
| 160 | __u16 handle; |
| 161 | __u16 state; |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 162 | __u8 mode; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 163 | __u8 type; |
| 164 | __u8 out; |
Marcel Holtmann | 4c67bc7 | 2006-10-15 17:30:56 +0200 | [diff] [blame] | 165 | __u8 attempt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 166 | __u8 dev_class[3]; |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 167 | __u8 features[8]; |
Marcel Holtmann | 41a9621 | 2008-07-14 20:13:48 +0200 | [diff] [blame] | 168 | __u8 ssp_mode; |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 169 | __u16 interval; |
Marcel Holtmann | a874641 | 2008-07-14 20:13:46 +0200 | [diff] [blame] | 170 | __u16 pkt_type; |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 171 | __u16 link_policy; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 172 | __u32 link_mode; |
Marcel Holtmann | 40be492 | 2008-07-14 20:13:50 +0200 | [diff] [blame] | 173 | __u8 auth_type; |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 174 | __u8 sec_level; |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 175 | __u8 power_save; |
Marcel Holtmann | 052b30b | 2009-04-26 20:01:22 +0200 | [diff] [blame] | 176 | __u16 disc_timeout; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 177 | unsigned long pend; |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 178 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 179 | unsigned int sent; |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 180 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 181 | struct sk_buff_head data_q; |
| 182 | |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 183 | struct timer_list disc_timer; |
| 184 | struct timer_list idle_timer; |
| 185 | |
Roger Quadros | f3784d8 | 2009-04-23 14:50:54 +0300 | [diff] [blame] | 186 | struct work_struct work_add; |
| 187 | struct work_struct work_del; |
Marcel Holtmann | b219e3a | 2006-07-06 12:38:46 +0200 | [diff] [blame] | 188 | |
| 189 | struct device dev; |
Marcel Holtmann | 9eba32b | 2009-08-22 14:19:26 -0700 | [diff] [blame] | 190 | atomic_t devref; |
Marcel Holtmann | b219e3a | 2006-07-06 12:38:46 +0200 | [diff] [blame] | 191 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 192 | struct hci_dev *hdev; |
| 193 | void *l2cap_data; |
| 194 | void *sco_data; |
| 195 | void *priv; |
| 196 | |
| 197 | struct hci_conn *link; |
| 198 | }; |
| 199 | |
| 200 | extern struct hci_proto *hci_proto[]; |
| 201 | extern struct list_head hci_dev_list; |
| 202 | extern struct list_head hci_cb_list; |
| 203 | extern rwlock_t hci_dev_list_lock; |
| 204 | extern rwlock_t hci_cb_list_lock; |
| 205 | |
| 206 | /* ----- Inquiry cache ----- */ |
| 207 | #define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds |
| 208 | #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds |
| 209 | |
| 210 | #define inquiry_cache_lock(c) spin_lock(&c->lock) |
| 211 | #define inquiry_cache_unlock(c) spin_unlock(&c->lock) |
| 212 | #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) |
| 213 | #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) |
| 214 | |
| 215 | static inline void inquiry_cache_init(struct hci_dev *hdev) |
| 216 | { |
| 217 | struct inquiry_cache *c = &hdev->inq_cache; |
| 218 | spin_lock_init(&c->lock); |
| 219 | c->list = NULL; |
| 220 | } |
| 221 | |
| 222 | static inline int inquiry_cache_empty(struct hci_dev *hdev) |
| 223 | { |
| 224 | struct inquiry_cache *c = &hdev->inq_cache; |
| 225 | return (c->list == NULL); |
| 226 | } |
| 227 | |
| 228 | static inline long inquiry_cache_age(struct hci_dev *hdev) |
| 229 | { |
| 230 | struct inquiry_cache *c = &hdev->inq_cache; |
| 231 | return jiffies - c->timestamp; |
| 232 | } |
| 233 | |
| 234 | static inline long inquiry_entry_age(struct inquiry_entry *e) |
| 235 | { |
| 236 | return jiffies - e->timestamp; |
| 237 | } |
| 238 | |
| 239 | struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); |
| 240 | void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); |
| 241 | |
| 242 | /* ----- HCI Connections ----- */ |
| 243 | enum { |
| 244 | HCI_CONN_AUTH_PEND, |
| 245 | HCI_CONN_ENCRYPT_PEND, |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 246 | HCI_CONN_RSWITCH_PEND, |
| 247 | HCI_CONN_MODE_CHANGE_PEND, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 248 | }; |
| 249 | |
| 250 | static inline void hci_conn_hash_init(struct hci_dev *hdev) |
| 251 | { |
| 252 | struct hci_conn_hash *h = &hdev->conn_hash; |
| 253 | INIT_LIST_HEAD(&h->list); |
| 254 | spin_lock_init(&h->lock); |
| 255 | h->acl_num = 0; |
| 256 | h->sco_num = 0; |
| 257 | } |
| 258 | |
| 259 | static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
| 260 | { |
| 261 | struct hci_conn_hash *h = &hdev->conn_hash; |
| 262 | list_add(&c->list, &h->list); |
| 263 | if (c->type == ACL_LINK) |
| 264 | h->acl_num++; |
| 265 | else |
| 266 | h->sco_num++; |
| 267 | } |
| 268 | |
| 269 | static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) |
| 270 | { |
| 271 | struct hci_conn_hash *h = &hdev->conn_hash; |
| 272 | list_del(&c->list); |
| 273 | if (c->type == ACL_LINK) |
| 274 | h->acl_num--; |
| 275 | else |
| 276 | h->sco_num--; |
| 277 | } |
| 278 | |
| 279 | static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
| 280 | __u16 handle) |
| 281 | { |
| 282 | struct hci_conn_hash *h = &hdev->conn_hash; |
| 283 | struct list_head *p; |
| 284 | struct hci_conn *c; |
| 285 | |
| 286 | list_for_each(p, &h->list) { |
| 287 | c = list_entry(p, struct hci_conn, list); |
| 288 | if (c->handle == handle) |
| 289 | return c; |
| 290 | } |
| 291 | return NULL; |
| 292 | } |
| 293 | |
| 294 | static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, |
| 295 | __u8 type, bdaddr_t *ba) |
| 296 | { |
| 297 | struct hci_conn_hash *h = &hdev->conn_hash; |
| 298 | struct list_head *p; |
| 299 | struct hci_conn *c; |
| 300 | |
| 301 | list_for_each(p, &h->list) { |
| 302 | c = list_entry(p, struct hci_conn, list); |
| 303 | if (c->type == type && !bacmp(&c->dst, ba)) |
| 304 | return c; |
| 305 | } |
| 306 | return NULL; |
| 307 | } |
| 308 | |
Marcel Holtmann | 4c67bc7 | 2006-10-15 17:30:56 +0200 | [diff] [blame] | 309 | static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
| 310 | __u8 type, __u16 state) |
| 311 | { |
| 312 | struct hci_conn_hash *h = &hdev->conn_hash; |
| 313 | struct list_head *p; |
| 314 | struct hci_conn *c; |
| 315 | |
| 316 | list_for_each(p, &h->list) { |
| 317 | c = list_entry(p, struct hci_conn, list); |
| 318 | if (c->type == type && c->state == state) |
| 319 | return c; |
| 320 | } |
| 321 | return NULL; |
| 322 | } |
| 323 | |
| 324 | void hci_acl_connect(struct hci_conn *conn); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 325 | void hci_acl_disconn(struct hci_conn *conn, __u8 reason); |
| 326 | void hci_add_sco(struct hci_conn *conn, __u16 handle); |
Marcel Holtmann | b6a0dc8 | 2007-10-20 14:55:10 +0200 | [diff] [blame] | 327 | void hci_setup_sync(struct hci_conn *conn, __u16 handle); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 328 | |
| 329 | struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); |
Marcel Holtmann | a9de924 | 2007-10-20 13:33:56 +0200 | [diff] [blame] | 330 | int hci_conn_del(struct hci_conn *conn); |
| 331 | void hci_conn_hash_flush(struct hci_dev *hdev); |
| 332 | void hci_conn_check_pending(struct hci_dev *hdev); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 333 | |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 334 | struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type); |
Marcel Holtmann | e7c29cb | 2008-09-09 07:19:20 +0200 | [diff] [blame] | 335 | int hci_conn_check_link_mode(struct hci_conn *conn); |
Marcel Holtmann | 0684e5f | 2009-02-09 02:48:38 +0100 | [diff] [blame] | 336 | int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 337 | int hci_conn_change_link_key(struct hci_conn *conn); |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 338 | int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 339 | |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 340 | void hci_conn_enter_active_mode(struct hci_conn *conn); |
| 341 | void hci_conn_enter_sniff_mode(struct hci_conn *conn); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 342 | |
Marcel Holtmann | 9eba32b | 2009-08-22 14:19:26 -0700 | [diff] [blame] | 343 | void hci_conn_hold_device(struct hci_conn *conn); |
| 344 | void hci_conn_put_device(struct hci_conn *conn); |
| 345 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 346 | static inline void hci_conn_hold(struct hci_conn *conn) |
| 347 | { |
| 348 | atomic_inc(&conn->refcnt); |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 349 | del_timer(&conn->disc_timer); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | static inline void hci_conn_put(struct hci_conn *conn) |
| 353 | { |
| 354 | if (atomic_dec_and_test(&conn->refcnt)) { |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 355 | unsigned long timeo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 356 | if (conn->type == ACL_LINK) { |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 357 | del_timer(&conn->idle_timer); |
Marcel Holtmann | 6ac5934 | 2006-09-26 09:43:48 +0200 | [diff] [blame] | 358 | if (conn->state == BT_CONNECTED) { |
Marcel Holtmann | 052b30b | 2009-04-26 20:01:22 +0200 | [diff] [blame] | 359 | timeo = msecs_to_jiffies(conn->disc_timeout); |
Marcel Holtmann | 6ac5934 | 2006-09-26 09:43:48 +0200 | [diff] [blame] | 360 | if (!conn->out) |
Marcel Holtmann | 052b30b | 2009-04-26 20:01:22 +0200 | [diff] [blame] | 361 | timeo *= 2; |
Marcel Holtmann | 6ac5934 | 2006-09-26 09:43:48 +0200 | [diff] [blame] | 362 | } else |
| 363 | timeo = msecs_to_jiffies(10); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 364 | } else |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 365 | timeo = msecs_to_jiffies(10); |
| 366 | mod_timer(&conn->disc_timer, jiffies + timeo); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 367 | } |
| 368 | } |
| 369 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 370 | /* ----- HCI Devices ----- */ |
| 371 | static inline void __hci_dev_put(struct hci_dev *d) |
| 372 | { |
| 373 | if (atomic_dec_and_test(&d->refcnt)) |
| 374 | d->destruct(d); |
| 375 | } |
| 376 | |
| 377 | static inline void hci_dev_put(struct hci_dev *d) |
| 378 | { |
| 379 | __hci_dev_put(d); |
| 380 | module_put(d->owner); |
| 381 | } |
| 382 | |
| 383 | static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) |
| 384 | { |
| 385 | atomic_inc(&d->refcnt); |
| 386 | return d; |
| 387 | } |
| 388 | |
| 389 | static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
| 390 | { |
| 391 | if (try_module_get(d->owner)) |
| 392 | return __hci_dev_hold(d); |
| 393 | return NULL; |
| 394 | } |
| 395 | |
| 396 | #define hci_dev_lock(d) spin_lock(&d->lock) |
| 397 | #define hci_dev_unlock(d) spin_unlock(&d->lock) |
| 398 | #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) |
| 399 | #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) |
| 400 | |
| 401 | struct hci_dev *hci_dev_get(int index); |
| 402 | struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); |
| 403 | |
| 404 | struct hci_dev *hci_alloc_dev(void); |
| 405 | void hci_free_dev(struct hci_dev *hdev); |
| 406 | int hci_register_dev(struct hci_dev *hdev); |
| 407 | int hci_unregister_dev(struct hci_dev *hdev); |
| 408 | int hci_suspend_dev(struct hci_dev *hdev); |
| 409 | int hci_resume_dev(struct hci_dev *hdev); |
| 410 | int hci_dev_open(__u16 dev); |
| 411 | int hci_dev_close(__u16 dev); |
| 412 | int hci_dev_reset(__u16 dev); |
| 413 | int hci_dev_reset_stat(__u16 dev); |
| 414 | int hci_dev_cmd(unsigned int cmd, void __user *arg); |
| 415 | int hci_get_dev_list(void __user *arg); |
| 416 | int hci_get_dev_info(void __user *arg); |
| 417 | int hci_get_conn_list(void __user *arg); |
| 418 | int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); |
Marcel Holtmann | 40be492 | 2008-07-14 20:13:50 +0200 | [diff] [blame] | 419 | int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 420 | int hci_inquiry(void __user *arg); |
| 421 | |
| 422 | void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
| 423 | |
Marcel Holtmann | 76bca88 | 2009-11-18 00:40:39 +0100 | [diff] [blame] | 424 | int hci_recv_frame(struct sk_buff *skb); |
Marcel Holtmann | ef22201 | 2007-07-11 06:42:04 +0200 | [diff] [blame] | 425 | int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); |
| 426 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 427 | int hci_register_sysfs(struct hci_dev *hdev); |
| 428 | void hci_unregister_sysfs(struct hci_dev *hdev); |
Marcel Holtmann | a67e899 | 2009-05-02 18:24:06 -0700 | [diff] [blame] | 429 | void hci_conn_init_sysfs(struct hci_conn *conn); |
Marcel Holtmann | b219e3a | 2006-07-06 12:38:46 +0200 | [diff] [blame] | 430 | void hci_conn_add_sysfs(struct hci_conn *conn); |
| 431 | void hci_conn_del_sysfs(struct hci_conn *conn); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 432 | |
Marcel Holtmann | a91f2e3 | 2006-07-03 10:02:41 +0200 | [diff] [blame] | 433 | #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 434 | |
| 435 | /* ----- LMP capabilities ----- */ |
Marcel Holtmann | 04837f6 | 2006-07-03 10:02:33 +0200 | [diff] [blame] | 436 | #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) |
| 437 | #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) |
| 438 | #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) |
| 439 | #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) |
Marcel Holtmann | 5b7f990 | 2007-07-11 09:51:55 +0200 | [diff] [blame] | 440 | #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) |
Marcel Holtmann | 769be97 | 2008-07-14 20:13:49 +0200 | [diff] [blame] | 441 | #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 442 | |
| 443 | /* ----- HCI protocols ----- */ |
| 444 | struct hci_proto { |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 445 | char *name; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 446 | unsigned int id; |
| 447 | unsigned long flags; |
| 448 | |
| 449 | void *priv; |
| 450 | |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 451 | int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 452 | int (*connect_cfm) (struct hci_conn *conn, __u8 status); |
Marcel Holtmann | 2950f21 | 2009-02-12 14:02:50 +0100 | [diff] [blame] | 453 | int (*disconn_ind) (struct hci_conn *conn); |
| 454 | int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 455 | int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); |
| 456 | int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 457 | int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 458 | }; |
| 459 | |
| 460 | static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) |
| 461 | { |
| 462 | register struct hci_proto *hp; |
| 463 | int mask = 0; |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 464 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 465 | hp = hci_proto[HCI_PROTO_L2CAP]; |
| 466 | if (hp && hp->connect_ind) |
| 467 | mask |= hp->connect_ind(hdev, bdaddr, type); |
| 468 | |
| 469 | hp = hci_proto[HCI_PROTO_SCO]; |
| 470 | if (hp && hp->connect_ind) |
| 471 | mask |= hp->connect_ind(hdev, bdaddr, type); |
| 472 | |
| 473 | return mask; |
| 474 | } |
| 475 | |
| 476 | static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) |
| 477 | { |
| 478 | register struct hci_proto *hp; |
| 479 | |
| 480 | hp = hci_proto[HCI_PROTO_L2CAP]; |
| 481 | if (hp && hp->connect_cfm) |
| 482 | hp->connect_cfm(conn, status); |
| 483 | |
| 484 | hp = hci_proto[HCI_PROTO_SCO]; |
| 485 | if (hp && hp->connect_cfm) |
| 486 | hp->connect_cfm(conn, status); |
| 487 | } |
| 488 | |
Marcel Holtmann | 2950f21 | 2009-02-12 14:02:50 +0100 | [diff] [blame] | 489 | static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
| 490 | { |
| 491 | register struct hci_proto *hp; |
| 492 | int reason = 0x13; |
| 493 | |
| 494 | hp = hci_proto[HCI_PROTO_L2CAP]; |
| 495 | if (hp && hp->disconn_ind) |
| 496 | reason = hp->disconn_ind(conn); |
| 497 | |
| 498 | hp = hci_proto[HCI_PROTO_SCO]; |
| 499 | if (hp && hp->disconn_ind) |
| 500 | reason = hp->disconn_ind(conn); |
| 501 | |
| 502 | return reason; |
| 503 | } |
| 504 | |
| 505 | static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 506 | { |
| 507 | register struct hci_proto *hp; |
| 508 | |
| 509 | hp = hci_proto[HCI_PROTO_L2CAP]; |
Marcel Holtmann | 2950f21 | 2009-02-12 14:02:50 +0100 | [diff] [blame] | 510 | if (hp && hp->disconn_cfm) |
| 511 | hp->disconn_cfm(conn, reason); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 512 | |
| 513 | hp = hci_proto[HCI_PROTO_SCO]; |
Marcel Holtmann | 2950f21 | 2009-02-12 14:02:50 +0100 | [diff] [blame] | 514 | if (hp && hp->disconn_cfm) |
| 515 | hp->disconn_cfm(conn, reason); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 516 | } |
| 517 | |
| 518 | static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) |
| 519 | { |
| 520 | register struct hci_proto *hp; |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 521 | __u8 encrypt; |
| 522 | |
| 523 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) |
| 524 | return; |
| 525 | |
| 526 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 527 | |
| 528 | hp = hci_proto[HCI_PROTO_L2CAP]; |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 529 | if (hp && hp->security_cfm) |
| 530 | hp->security_cfm(conn, status, encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 531 | |
| 532 | hp = hci_proto[HCI_PROTO_SCO]; |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 533 | if (hp && hp->security_cfm) |
| 534 | hp->security_cfm(conn, status, encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 535 | } |
| 536 | |
Marcel Holtmann | 9719f8a | 2008-07-14 20:13:45 +0200 | [diff] [blame] | 537 | static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 538 | { |
| 539 | register struct hci_proto *hp; |
| 540 | |
| 541 | hp = hci_proto[HCI_PROTO_L2CAP]; |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 542 | if (hp && hp->security_cfm) |
| 543 | hp->security_cfm(conn, status, encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 544 | |
| 545 | hp = hci_proto[HCI_PROTO_SCO]; |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 546 | if (hp && hp->security_cfm) |
| 547 | hp->security_cfm(conn, status, encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 548 | } |
| 549 | |
| 550 | int hci_register_proto(struct hci_proto *hproto); |
| 551 | int hci_unregister_proto(struct hci_proto *hproto); |
| 552 | |
| 553 | /* ----- HCI callbacks ----- */ |
| 554 | struct hci_cb { |
| 555 | struct list_head list; |
| 556 | |
| 557 | char *name; |
| 558 | |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 559 | void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 560 | void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
| 561 | void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); |
| 562 | }; |
| 563 | |
| 564 | static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) |
| 565 | { |
| 566 | struct list_head *p; |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 567 | __u8 encrypt; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 568 | |
| 569 | hci_proto_auth_cfm(conn, status); |
| 570 | |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 571 | if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) |
| 572 | return; |
| 573 | |
| 574 | encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; |
| 575 | |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 576 | read_lock_bh(&hci_cb_list_lock); |
| 577 | list_for_each(p, &hci_cb_list) { |
| 578 | struct hci_cb *cb = list_entry(p, struct hci_cb, list); |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 579 | if (cb->security_cfm) |
| 580 | cb->security_cfm(conn, status, encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 581 | } |
| 582 | read_unlock_bh(&hci_cb_list_lock); |
| 583 | } |
| 584 | |
| 585 | static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) |
| 586 | { |
| 587 | struct list_head *p; |
| 588 | |
Marcel Holtmann | 435fef2 | 2009-02-09 03:55:28 +0100 | [diff] [blame] | 589 | if (conn->sec_level == BT_SECURITY_SDP) |
| 590 | conn->sec_level = BT_SECURITY_LOW; |
| 591 | |
Marcel Holtmann | 9719f8a | 2008-07-14 20:13:45 +0200 | [diff] [blame] | 592 | hci_proto_encrypt_cfm(conn, status, encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 593 | |
| 594 | read_lock_bh(&hci_cb_list_lock); |
| 595 | list_for_each(p, &hci_cb_list) { |
| 596 | struct hci_cb *cb = list_entry(p, struct hci_cb, list); |
Marcel Holtmann | 8c1b235 | 2009-01-15 21:58:04 +0100 | [diff] [blame] | 597 | if (cb->security_cfm) |
| 598 | cb->security_cfm(conn, status, encrypt); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 599 | } |
| 600 | read_unlock_bh(&hci_cb_list_lock); |
| 601 | } |
| 602 | |
| 603 | static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) |
| 604 | { |
| 605 | struct list_head *p; |
| 606 | |
| 607 | read_lock_bh(&hci_cb_list_lock); |
| 608 | list_for_each(p, &hci_cb_list) { |
| 609 | struct hci_cb *cb = list_entry(p, struct hci_cb, list); |
| 610 | if (cb->key_change_cfm) |
| 611 | cb->key_change_cfm(conn, status); |
| 612 | } |
| 613 | read_unlock_bh(&hci_cb_list_lock); |
| 614 | } |
| 615 | |
| 616 | static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) |
| 617 | { |
| 618 | struct list_head *p; |
| 619 | |
| 620 | read_lock_bh(&hci_cb_list_lock); |
| 621 | list_for_each(p, &hci_cb_list) { |
| 622 | struct hci_cb *cb = list_entry(p, struct hci_cb, list); |
| 623 | if (cb->role_switch_cfm) |
| 624 | cb->role_switch_cfm(conn, status, role); |
| 625 | } |
| 626 | read_unlock_bh(&hci_cb_list_lock); |
| 627 | } |
| 628 | |
| 629 | int hci_register_cb(struct hci_cb *hcb); |
| 630 | int hci_unregister_cb(struct hci_cb *hcb); |
| 631 | |
| 632 | int hci_register_notifier(struct notifier_block *nb); |
| 633 | int hci_unregister_notifier(struct notifier_block *nb); |
| 634 | |
Marcel Holtmann | a9de924 | 2007-10-20 13:33:56 +0200 | [diff] [blame] | 635 | int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 636 | int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); |
| 637 | int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
| 638 | |
Marcel Holtmann | a9de924 | 2007-10-20 13:33:56 +0200 | [diff] [blame] | 639 | void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 640 | |
| 641 | void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); |
| 642 | |
| 643 | /* ----- HCI Sockets ----- */ |
| 644 | void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
| 645 | |
| 646 | /* HCI info for socket */ |
| 647 | #define hci_pi(sk) ((struct hci_pinfo *) sk) |
| 648 | |
| 649 | struct hci_pinfo { |
| 650 | struct bt_sock bt; |
| 651 | struct hci_dev *hdev; |
| 652 | struct hci_filter filter; |
| 653 | __u32 cmsg_mask; |
| 654 | }; |
| 655 | |
| 656 | /* HCI security filter */ |
| 657 | #define HCI_SFLT_MAX_OGF 5 |
| 658 | |
| 659 | struct hci_sec_filter { |
| 660 | __u32 type_mask; |
| 661 | __u32 event_mask[2]; |
| 662 | __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; |
| 663 | }; |
| 664 | |
| 665 | /* ----- HCI requests ----- */ |
| 666 | #define HCI_REQ_DONE 0 |
| 667 | #define HCI_REQ_PEND 1 |
| 668 | #define HCI_REQ_CANCELED 2 |
| 669 | |
Thomas Gleixner | a6a67ef | 2009-07-26 08:18:19 +0000 | [diff] [blame] | 670 | #define hci_req_lock(d) mutex_lock(&d->req_lock) |
| 671 | #define hci_req_unlock(d) mutex_unlock(&d->req_lock) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 672 | |
| 673 | void hci_req_complete(struct hci_dev *hdev, int result); |
| 674 | |
| 675 | #endif /* __HCI_CORE_H */ |