11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds BlueZ - Bluetooth protocol stack for Linux 32d0a0346SRon Shaffer Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. 41da177e4SLinus Torvalds 51da177e4SLinus Torvalds Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> 61da177e4SLinus Torvalds 71da177e4SLinus Torvalds This program is free software; you can redistribute it and/or modify 81da177e4SLinus Torvalds it under the terms of the GNU General Public License version 2 as 91da177e4SLinus Torvalds published by the Free Software Foundation; 101da177e4SLinus Torvalds 111da177e4SLinus Torvalds THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 121da177e4SLinus Torvalds OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 131da177e4SLinus Torvalds FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. 141da177e4SLinus Torvalds IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY 151da177e4SLinus Torvalds CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES 161da177e4SLinus Torvalds WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 171da177e4SLinus Torvalds ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 181da177e4SLinus Torvalds OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 191da177e4SLinus Torvalds 201da177e4SLinus Torvalds ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, 211da177e4SLinus Torvalds COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS 221da177e4SLinus Torvalds SOFTWARE IS DISCLAIMED. 231da177e4SLinus Torvalds */ 241da177e4SLinus Torvalds 251da177e4SLinus Torvalds #ifndef __HCI_CORE_H 261da177e4SLinus Torvalds #define __HCI_CORE_H 271da177e4SLinus Torvalds 281da177e4SLinus Torvalds #include <net/bluetooth/hci.h> 291da177e4SLinus Torvalds 301da177e4SLinus Torvalds /* HCI upper protocols */ 311da177e4SLinus Torvalds #define HCI_PROTO_L2CAP 0 321da177e4SLinus Torvalds #define HCI_PROTO_SCO 1 331da177e4SLinus Torvalds 341da177e4SLinus Torvalds /* HCI Core structures */ 351da177e4SLinus Torvalds struct inquiry_data { 361da177e4SLinus Torvalds bdaddr_t bdaddr; 371da177e4SLinus Torvalds __u8 pscan_rep_mode; 381da177e4SLinus Torvalds __u8 pscan_period_mode; 391da177e4SLinus Torvalds __u8 pscan_mode; 401da177e4SLinus Torvalds __u8 dev_class[3]; 411ebb9252SMarcel Holtmann __le16 clock_offset; 421da177e4SLinus Torvalds __s8 rssi; 4341a96212SMarcel Holtmann __u8 ssp_mode; 441da177e4SLinus Torvalds }; 451da177e4SLinus Torvalds 461da177e4SLinus Torvalds struct inquiry_entry { 471da177e4SLinus Torvalds struct inquiry_entry *next; 481da177e4SLinus Torvalds __u32 timestamp; 491da177e4SLinus Torvalds struct inquiry_data data; 501da177e4SLinus Torvalds }; 511da177e4SLinus Torvalds 521da177e4SLinus Torvalds struct inquiry_cache { 531da177e4SLinus Torvalds spinlock_t lock; 541da177e4SLinus Torvalds __u32 timestamp; 551da177e4SLinus Torvalds struct inquiry_entry *list; 561da177e4SLinus Torvalds }; 571da177e4SLinus Torvalds 581da177e4SLinus Torvalds struct hci_conn_hash { 591da177e4SLinus Torvalds struct list_head list; 601da177e4SLinus Torvalds spinlock_t lock; 611da177e4SLinus Torvalds unsigned int acl_num; 621da177e4SLinus Torvalds unsigned int sco_num; 631da177e4SLinus Torvalds }; 641da177e4SLinus Torvalds 65f0358568SJohan Hedberg struct bdaddr_list { 66f0358568SJohan Hedberg struct list_head list; 67f0358568SJohan Hedberg bdaddr_t bdaddr; 68f0358568SJohan Hedberg }; 69cd4c5391SSuraj Sumangala #define NUM_REASSEMBLY 4 701da177e4SLinus Torvalds struct hci_dev { 711da177e4SLinus Torvalds struct list_head list; 721da177e4SLinus Torvalds spinlock_t lock; 731da177e4SLinus Torvalds atomic_t refcnt; 741da177e4SLinus Torvalds 751da177e4SLinus Torvalds char name[8]; 761da177e4SLinus Torvalds unsigned long flags; 771da177e4SLinus Torvalds __u16 id; 78c13854ceSMarcel Holtmann __u8 bus; 79943da25dSMarcel Holtmann __u8 dev_type; 801da177e4SLinus Torvalds bdaddr_t bdaddr; 81a9de9248SMarcel Holtmann __u8 dev_name[248]; 82a9de9248SMarcel Holtmann __u8 dev_class[3]; 831da177e4SLinus Torvalds __u8 features[8]; 84a9de9248SMarcel Holtmann __u8 commands[64]; 85333140b5SMarcel Holtmann __u8 ssp_mode; 861143e5a6SMarcel Holtmann __u8 hci_ver; 871143e5a6SMarcel Holtmann __u16 hci_rev; 881143e5a6SMarcel Holtmann __u16 manufacturer; 891da177e4SLinus Torvalds __u16 voice_setting; 901da177e4SLinus Torvalds 911da177e4SLinus Torvalds __u16 pkt_type; 925b7f9909SMarcel Holtmann __u16 esco_type; 931da177e4SLinus Torvalds __u16 link_policy; 941da177e4SLinus Torvalds __u16 link_mode; 951da177e4SLinus Torvalds 9604837f64SMarcel Holtmann __u32 idle_timeout; 9704837f64SMarcel Holtmann __u16 sniff_min_interval; 9804837f64SMarcel Holtmann __u16 sniff_max_interval; 9904837f64SMarcel Holtmann 1001da177e4SLinus Torvalds unsigned long quirks; 1011da177e4SLinus Torvalds 1021da177e4SLinus Torvalds atomic_t cmd_cnt; 1031da177e4SLinus Torvalds unsigned int acl_cnt; 1041da177e4SLinus Torvalds unsigned int sco_cnt; 1051da177e4SLinus Torvalds 1061da177e4SLinus Torvalds unsigned int acl_mtu; 1071da177e4SLinus Torvalds unsigned int sco_mtu; 1081da177e4SLinus Torvalds unsigned int acl_pkts; 1091da177e4SLinus Torvalds unsigned int sco_pkts; 1101da177e4SLinus Torvalds 1111da177e4SLinus Torvalds unsigned long cmd_last_tx; 1121da177e4SLinus Torvalds unsigned long acl_last_tx; 1131da177e4SLinus Torvalds unsigned long sco_last_tx; 1141da177e4SLinus Torvalds 115f48fd9c8SMarcel Holtmann struct workqueue_struct *workqueue; 116f48fd9c8SMarcel Holtmann 1171da177e4SLinus Torvalds struct tasklet_struct cmd_task; 1181da177e4SLinus Torvalds struct tasklet_struct rx_task; 1191da177e4SLinus Torvalds struct tasklet_struct tx_task; 1201da177e4SLinus Torvalds 1211da177e4SLinus Torvalds struct sk_buff_head rx_q; 1221da177e4SLinus Torvalds struct sk_buff_head raw_q; 1231da177e4SLinus Torvalds struct sk_buff_head cmd_q; 1241da177e4SLinus Torvalds 1251da177e4SLinus Torvalds struct sk_buff *sent_cmd; 126cd4c5391SSuraj Sumangala struct sk_buff *reassembly[NUM_REASSEMBLY]; 1271da177e4SLinus Torvalds 128a6a67efdSThomas Gleixner struct mutex req_lock; 1291da177e4SLinus Torvalds wait_queue_head_t req_wait_q; 1301da177e4SLinus Torvalds __u32 req_status; 1311da177e4SLinus Torvalds __u32 req_result; 13223bb5763SJohan Hedberg __u16 req_last_cmd; 1331da177e4SLinus Torvalds 1341da177e4SLinus Torvalds struct inquiry_cache inq_cache; 1351da177e4SLinus Torvalds struct hci_conn_hash conn_hash; 136ea4bd8baSDavid Miller struct list_head blacklist; 1371da177e4SLinus Torvalds 1381da177e4SLinus Torvalds struct hci_dev_stats stat; 1391da177e4SLinus Torvalds 1401da177e4SLinus Torvalds struct sk_buff_head driver_init; 1411da177e4SLinus Torvalds 1421da177e4SLinus Torvalds void *driver_data; 1431da177e4SLinus Torvalds void *core_data; 1441da177e4SLinus Torvalds 1451da177e4SLinus Torvalds atomic_t promisc; 1461da177e4SLinus Torvalds 147ca325f69SMarcel Holtmann struct dentry *debugfs; 148ca325f69SMarcel Holtmann 149a91f2e39SMarcel Holtmann struct device *parent; 150a91f2e39SMarcel Holtmann struct device dev; 1511da177e4SLinus Torvalds 152611b30f7SMarcel Holtmann struct rfkill *rfkill; 153611b30f7SMarcel Holtmann 1541da177e4SLinus Torvalds struct module *owner; 1551da177e4SLinus Torvalds 1561da177e4SLinus Torvalds int (*open)(struct hci_dev *hdev); 1571da177e4SLinus Torvalds int (*close)(struct hci_dev *hdev); 1581da177e4SLinus Torvalds int (*flush)(struct hci_dev *hdev); 1591da177e4SLinus Torvalds int (*send)(struct sk_buff *skb); 1601da177e4SLinus Torvalds void (*destruct)(struct hci_dev *hdev); 1611da177e4SLinus Torvalds void (*notify)(struct hci_dev *hdev, unsigned int evt); 1621da177e4SLinus Torvalds int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 1631da177e4SLinus Torvalds }; 1641da177e4SLinus Torvalds 1651da177e4SLinus Torvalds struct hci_conn { 1661da177e4SLinus Torvalds struct list_head list; 1671da177e4SLinus Torvalds 1681da177e4SLinus Torvalds atomic_t refcnt; 1691da177e4SLinus Torvalds spinlock_t lock; 1701da177e4SLinus Torvalds 1711da177e4SLinus Torvalds bdaddr_t dst; 1721da177e4SLinus Torvalds __u16 handle; 1731da177e4SLinus Torvalds __u16 state; 17404837f64SMarcel Holtmann __u8 mode; 1751da177e4SLinus Torvalds __u8 type; 1761da177e4SLinus Torvalds __u8 out; 1774c67bc74SMarcel Holtmann __u8 attempt; 1781da177e4SLinus Torvalds __u8 dev_class[3]; 17904837f64SMarcel Holtmann __u8 features[8]; 18041a96212SMarcel Holtmann __u8 ssp_mode; 18104837f64SMarcel Holtmann __u16 interval; 182a8746417SMarcel Holtmann __u16 pkt_type; 18304837f64SMarcel Holtmann __u16 link_policy; 1841da177e4SLinus Torvalds __u32 link_mode; 18540be492fSMarcel Holtmann __u8 auth_type; 1868c1b2355SMarcel Holtmann __u8 sec_level; 18704837f64SMarcel Holtmann __u8 power_save; 188052b30b0SMarcel Holtmann __u16 disc_timeout; 1891da177e4SLinus Torvalds unsigned long pend; 1901da177e4SLinus Torvalds 1911da177e4SLinus Torvalds unsigned int sent; 1921da177e4SLinus Torvalds 1931da177e4SLinus Torvalds struct sk_buff_head data_q; 1941da177e4SLinus Torvalds 19504837f64SMarcel Holtmann struct timer_list disc_timer; 19604837f64SMarcel Holtmann struct timer_list idle_timer; 1971da177e4SLinus Torvalds 198f3784d83SRoger Quadros struct work_struct work_add; 199f3784d83SRoger Quadros struct work_struct work_del; 200b219e3acSMarcel Holtmann 201b219e3acSMarcel Holtmann struct device dev; 2029eba32b8SMarcel Holtmann atomic_t devref; 203b219e3acSMarcel Holtmann 2041da177e4SLinus Torvalds struct hci_dev *hdev; 2051da177e4SLinus Torvalds void *l2cap_data; 2061da177e4SLinus Torvalds void *sco_data; 2071da177e4SLinus Torvalds void *priv; 2081da177e4SLinus Torvalds 2091da177e4SLinus Torvalds struct hci_conn *link; 2101da177e4SLinus Torvalds }; 2111da177e4SLinus Torvalds 2121da177e4SLinus Torvalds extern struct hci_proto *hci_proto[]; 2131da177e4SLinus Torvalds extern struct list_head hci_dev_list; 2141da177e4SLinus Torvalds extern struct list_head hci_cb_list; 2151da177e4SLinus Torvalds extern rwlock_t hci_dev_list_lock; 2161da177e4SLinus Torvalds extern rwlock_t hci_cb_list_lock; 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds /* ----- Inquiry cache ----- */ 21970f23020SAndrei Emeltchenko #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 22070f23020SAndrei Emeltchenko #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds #define inquiry_cache_lock(c) spin_lock(&c->lock) 2231da177e4SLinus Torvalds #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 2241da177e4SLinus Torvalds #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 2251da177e4SLinus Torvalds #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 2261da177e4SLinus Torvalds 2271da177e4SLinus Torvalds static inline void inquiry_cache_init(struct hci_dev *hdev) 2281da177e4SLinus Torvalds { 2291da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2301da177e4SLinus Torvalds spin_lock_init(&c->lock); 2311da177e4SLinus Torvalds c->list = NULL; 2321da177e4SLinus Torvalds } 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds static inline int inquiry_cache_empty(struct hci_dev *hdev) 2351da177e4SLinus Torvalds { 2361da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 237a02cec21SEric Dumazet return c->list == NULL; 2381da177e4SLinus Torvalds } 2391da177e4SLinus Torvalds 2401da177e4SLinus Torvalds static inline long inquiry_cache_age(struct hci_dev *hdev) 2411da177e4SLinus Torvalds { 2421da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2431da177e4SLinus Torvalds return jiffies - c->timestamp; 2441da177e4SLinus Torvalds } 2451da177e4SLinus Torvalds 2461da177e4SLinus Torvalds static inline long inquiry_entry_age(struct inquiry_entry *e) 2471da177e4SLinus Torvalds { 2481da177e4SLinus Torvalds return jiffies - e->timestamp; 2491da177e4SLinus Torvalds } 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 2521da177e4SLinus Torvalds void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 2531da177e4SLinus Torvalds 2541da177e4SLinus Torvalds /* ----- HCI Connections ----- */ 2551da177e4SLinus Torvalds enum { 2561da177e4SLinus Torvalds HCI_CONN_AUTH_PEND, 2571da177e4SLinus Torvalds HCI_CONN_ENCRYPT_PEND, 25804837f64SMarcel Holtmann HCI_CONN_RSWITCH_PEND, 25904837f64SMarcel Holtmann HCI_CONN_MODE_CHANGE_PEND, 260e73439d8SMarcel Holtmann HCI_CONN_SCO_SETUP_PEND, 2611da177e4SLinus Torvalds }; 2621da177e4SLinus Torvalds 2631da177e4SLinus Torvalds static inline void hci_conn_hash_init(struct hci_dev *hdev) 2641da177e4SLinus Torvalds { 2651da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2661da177e4SLinus Torvalds INIT_LIST_HEAD(&h->list); 2671da177e4SLinus Torvalds spin_lock_init(&h->lock); 2681da177e4SLinus Torvalds h->acl_num = 0; 2691da177e4SLinus Torvalds h->sco_num = 0; 2701da177e4SLinus Torvalds } 2711da177e4SLinus Torvalds 2721da177e4SLinus Torvalds static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 2731da177e4SLinus Torvalds { 2741da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2751da177e4SLinus Torvalds list_add(&c->list, &h->list); 2761da177e4SLinus Torvalds if (c->type == ACL_LINK) 2771da177e4SLinus Torvalds h->acl_num++; 2781da177e4SLinus Torvalds else 2791da177e4SLinus Torvalds h->sco_num++; 2801da177e4SLinus Torvalds } 2811da177e4SLinus Torvalds 2821da177e4SLinus Torvalds static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 2831da177e4SLinus Torvalds { 2841da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2851da177e4SLinus Torvalds list_del(&c->list); 2861da177e4SLinus Torvalds if (c->type == ACL_LINK) 2871da177e4SLinus Torvalds h->acl_num--; 2881da177e4SLinus Torvalds else 2891da177e4SLinus Torvalds h->sco_num--; 2901da177e4SLinus Torvalds } 2911da177e4SLinus Torvalds 2921da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 2931da177e4SLinus Torvalds __u16 handle) 2941da177e4SLinus Torvalds { 2951da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2961da177e4SLinus Torvalds struct list_head *p; 2971da177e4SLinus Torvalds struct hci_conn *c; 2981da177e4SLinus Torvalds 2991da177e4SLinus Torvalds list_for_each(p, &h->list) { 3001da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 3011da177e4SLinus Torvalds if (c->handle == handle) 3021da177e4SLinus Torvalds return c; 3031da177e4SLinus Torvalds } 3041da177e4SLinus Torvalds return NULL; 3051da177e4SLinus Torvalds } 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 3081da177e4SLinus Torvalds __u8 type, bdaddr_t *ba) 3091da177e4SLinus Torvalds { 3101da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 3111da177e4SLinus Torvalds struct list_head *p; 3121da177e4SLinus Torvalds struct hci_conn *c; 3131da177e4SLinus Torvalds 3141da177e4SLinus Torvalds list_for_each(p, &h->list) { 3151da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 3161da177e4SLinus Torvalds if (c->type == type && !bacmp(&c->dst, ba)) 3171da177e4SLinus Torvalds return c; 3181da177e4SLinus Torvalds } 3191da177e4SLinus Torvalds return NULL; 3201da177e4SLinus Torvalds } 3211da177e4SLinus Torvalds 3224c67bc74SMarcel Holtmann static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 3234c67bc74SMarcel Holtmann __u8 type, __u16 state) 3244c67bc74SMarcel Holtmann { 3254c67bc74SMarcel Holtmann struct hci_conn_hash *h = &hdev->conn_hash; 3264c67bc74SMarcel Holtmann struct list_head *p; 3274c67bc74SMarcel Holtmann struct hci_conn *c; 3284c67bc74SMarcel Holtmann 3294c67bc74SMarcel Holtmann list_for_each(p, &h->list) { 3304c67bc74SMarcel Holtmann c = list_entry(p, struct hci_conn, list); 3314c67bc74SMarcel Holtmann if (c->type == type && c->state == state) 3324c67bc74SMarcel Holtmann return c; 3334c67bc74SMarcel Holtmann } 3344c67bc74SMarcel Holtmann return NULL; 3354c67bc74SMarcel Holtmann } 3364c67bc74SMarcel Holtmann 3374c67bc74SMarcel Holtmann void hci_acl_connect(struct hci_conn *conn); 3381da177e4SLinus Torvalds void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 3391da177e4SLinus Torvalds void hci_add_sco(struct hci_conn *conn, __u16 handle); 340b6a0dc82SMarcel Holtmann void hci_setup_sync(struct hci_conn *conn, __u16 handle); 341e73439d8SMarcel Holtmann void hci_sco_setup(struct hci_conn *conn, __u8 status); 3421da177e4SLinus Torvalds 3431da177e4SLinus Torvalds struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 3441da177e4SLinus Torvalds int hci_conn_del(struct hci_conn *conn); 3451da177e4SLinus Torvalds void hci_conn_hash_flush(struct hci_dev *hdev); 346a9de9248SMarcel Holtmann void hci_conn_check_pending(struct hci_dev *hdev); 3471da177e4SLinus Torvalds 3488c1b2355SMarcel Holtmann struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type); 349e7c29cb1SMarcel Holtmann int hci_conn_check_link_mode(struct hci_conn *conn); 3500684e5f9SMarcel Holtmann int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 3511da177e4SLinus Torvalds int hci_conn_change_link_key(struct hci_conn *conn); 3528c1b2355SMarcel Holtmann int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 3531da177e4SLinus Torvalds 35404837f64SMarcel Holtmann void hci_conn_enter_active_mode(struct hci_conn *conn); 35504837f64SMarcel Holtmann void hci_conn_enter_sniff_mode(struct hci_conn *conn); 3561da177e4SLinus Torvalds 3579eba32b8SMarcel Holtmann void hci_conn_hold_device(struct hci_conn *conn); 3589eba32b8SMarcel Holtmann void hci_conn_put_device(struct hci_conn *conn); 3599eba32b8SMarcel Holtmann 3601da177e4SLinus Torvalds static inline void hci_conn_hold(struct hci_conn *conn) 3611da177e4SLinus Torvalds { 3621da177e4SLinus Torvalds atomic_inc(&conn->refcnt); 36304837f64SMarcel Holtmann del_timer(&conn->disc_timer); 3641da177e4SLinus Torvalds } 3651da177e4SLinus Torvalds 3661da177e4SLinus Torvalds static inline void hci_conn_put(struct hci_conn *conn) 3671da177e4SLinus Torvalds { 3681da177e4SLinus Torvalds if (atomic_dec_and_test(&conn->refcnt)) { 36904837f64SMarcel Holtmann unsigned long timeo; 3701da177e4SLinus Torvalds if (conn->type == ACL_LINK) { 3716ac59344SMarcel Holtmann del_timer(&conn->idle_timer); 3726ac59344SMarcel Holtmann if (conn->state == BT_CONNECTED) { 373052b30b0SMarcel Holtmann timeo = msecs_to_jiffies(conn->disc_timeout); 37404837f64SMarcel Holtmann if (!conn->out) 375052b30b0SMarcel Holtmann timeo *= 2; 3766ac59344SMarcel Holtmann } else 3776ac59344SMarcel Holtmann timeo = msecs_to_jiffies(10); 3781da177e4SLinus Torvalds } else 37904837f64SMarcel Holtmann timeo = msecs_to_jiffies(10); 38004837f64SMarcel Holtmann mod_timer(&conn->disc_timer, jiffies + timeo); 3811da177e4SLinus Torvalds } 3821da177e4SLinus Torvalds } 3831da177e4SLinus Torvalds 3841da177e4SLinus Torvalds /* ----- HCI Devices ----- */ 3851da177e4SLinus Torvalds static inline void __hci_dev_put(struct hci_dev *d) 3861da177e4SLinus Torvalds { 3871da177e4SLinus Torvalds if (atomic_dec_and_test(&d->refcnt)) 3881da177e4SLinus Torvalds d->destruct(d); 3891da177e4SLinus Torvalds } 3901da177e4SLinus Torvalds 3911da177e4SLinus Torvalds static inline void hci_dev_put(struct hci_dev *d) 3921da177e4SLinus Torvalds { 3931da177e4SLinus Torvalds __hci_dev_put(d); 3941da177e4SLinus Torvalds module_put(d->owner); 3951da177e4SLinus Torvalds } 3961da177e4SLinus Torvalds 3971da177e4SLinus Torvalds static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 3981da177e4SLinus Torvalds { 3991da177e4SLinus Torvalds atomic_inc(&d->refcnt); 4001da177e4SLinus Torvalds return d; 4011da177e4SLinus Torvalds } 4021da177e4SLinus Torvalds 4031da177e4SLinus Torvalds static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 4041da177e4SLinus Torvalds { 4051da177e4SLinus Torvalds if (try_module_get(d->owner)) 4061da177e4SLinus Torvalds return __hci_dev_hold(d); 4071da177e4SLinus Torvalds return NULL; 4081da177e4SLinus Torvalds } 4091da177e4SLinus Torvalds 4101da177e4SLinus Torvalds #define hci_dev_lock(d) spin_lock(&d->lock) 4111da177e4SLinus Torvalds #define hci_dev_unlock(d) spin_unlock(&d->lock) 4121da177e4SLinus Torvalds #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 4131da177e4SLinus Torvalds #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 4141da177e4SLinus Torvalds 4151da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index); 4161da177e4SLinus Torvalds struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 4171da177e4SLinus Torvalds 4181da177e4SLinus Torvalds struct hci_dev *hci_alloc_dev(void); 4191da177e4SLinus Torvalds void hci_free_dev(struct hci_dev *hdev); 4201da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev); 4211da177e4SLinus Torvalds int hci_unregister_dev(struct hci_dev *hdev); 4221da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev); 4231da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev); 4241da177e4SLinus Torvalds int hci_dev_open(__u16 dev); 4251da177e4SLinus Torvalds int hci_dev_close(__u16 dev); 4261da177e4SLinus Torvalds int hci_dev_reset(__u16 dev); 4271da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev); 4281da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg); 4291da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg); 4301da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg); 4311da177e4SLinus Torvalds int hci_get_conn_list(void __user *arg); 4321da177e4SLinus Torvalds int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 43340be492fSMarcel Holtmann int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 4341da177e4SLinus Torvalds int hci_inquiry(void __user *arg); 4351da177e4SLinus Torvalds 436f0358568SJohan Hedberg struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 437f0358568SJohan Hedberg int hci_blacklist_clear(struct hci_dev *hdev); 438f0358568SJohan Hedberg 4391da177e4SLinus Torvalds void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 4401da177e4SLinus Torvalds 44176bca880SMarcel Holtmann int hci_recv_frame(struct sk_buff *skb); 442ef222013SMarcel Holtmann int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 44399811510SSuraj Sumangala int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); 444ef222013SMarcel Holtmann 4451da177e4SLinus Torvalds int hci_register_sysfs(struct hci_dev *hdev); 4461da177e4SLinus Torvalds void hci_unregister_sysfs(struct hci_dev *hdev); 447a67e899cSMarcel Holtmann void hci_conn_init_sysfs(struct hci_conn *conn); 448b219e3acSMarcel Holtmann void hci_conn_add_sysfs(struct hci_conn *conn); 449b219e3acSMarcel Holtmann void hci_conn_del_sysfs(struct hci_conn *conn); 4501da177e4SLinus Torvalds 451a91f2e39SMarcel Holtmann #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 4521da177e4SLinus Torvalds 4531da177e4SLinus Torvalds /* ----- LMP capabilities ----- */ 45404837f64SMarcel Holtmann #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 45504837f64SMarcel Holtmann #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 45604837f64SMarcel Holtmann #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 45704837f64SMarcel Holtmann #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 4585b7f9909SMarcel Holtmann #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 459769be974SMarcel Holtmann #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 4601da177e4SLinus Torvalds 4611da177e4SLinus Torvalds /* ----- HCI protocols ----- */ 4621da177e4SLinus Torvalds struct hci_proto { 4631da177e4SLinus Torvalds char *name; 4641da177e4SLinus Torvalds unsigned int id; 4651da177e4SLinus Torvalds unsigned long flags; 4661da177e4SLinus Torvalds 4671da177e4SLinus Torvalds void *priv; 4681da177e4SLinus Torvalds 4691da177e4SLinus Torvalds int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); 4701da177e4SLinus Torvalds int (*connect_cfm) (struct hci_conn *conn, __u8 status); 4712950f21aSMarcel Holtmann int (*disconn_ind) (struct hci_conn *conn); 4722950f21aSMarcel Holtmann int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); 4731da177e4SLinus Torvalds int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 4741da177e4SLinus Torvalds int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 4758c1b2355SMarcel Holtmann int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 4761da177e4SLinus Torvalds }; 4771da177e4SLinus Torvalds 4781da177e4SLinus Torvalds static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) 4791da177e4SLinus Torvalds { 4801da177e4SLinus Torvalds register struct hci_proto *hp; 4811da177e4SLinus Torvalds int mask = 0; 4821da177e4SLinus Torvalds 4831da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4841da177e4SLinus Torvalds if (hp && hp->connect_ind) 4851da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4861da177e4SLinus Torvalds 4871da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 4881da177e4SLinus Torvalds if (hp && hp->connect_ind) 4891da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4901da177e4SLinus Torvalds 4911da177e4SLinus Torvalds return mask; 4921da177e4SLinus Torvalds } 4931da177e4SLinus Torvalds 4941da177e4SLinus Torvalds static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 4951da177e4SLinus Torvalds { 4961da177e4SLinus Torvalds register struct hci_proto *hp; 4971da177e4SLinus Torvalds 4981da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4991da177e4SLinus Torvalds if (hp && hp->connect_cfm) 5001da177e4SLinus Torvalds hp->connect_cfm(conn, status); 5011da177e4SLinus Torvalds 5021da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5031da177e4SLinus Torvalds if (hp && hp->connect_cfm) 5041da177e4SLinus Torvalds hp->connect_cfm(conn, status); 5051da177e4SLinus Torvalds } 5061da177e4SLinus Torvalds 5072950f21aSMarcel Holtmann static inline int hci_proto_disconn_ind(struct hci_conn *conn) 5082950f21aSMarcel Holtmann { 5092950f21aSMarcel Holtmann register struct hci_proto *hp; 5102950f21aSMarcel Holtmann int reason = 0x13; 5112950f21aSMarcel Holtmann 5122950f21aSMarcel Holtmann hp = hci_proto[HCI_PROTO_L2CAP]; 5132950f21aSMarcel Holtmann if (hp && hp->disconn_ind) 5142950f21aSMarcel Holtmann reason = hp->disconn_ind(conn); 5152950f21aSMarcel Holtmann 5162950f21aSMarcel Holtmann hp = hci_proto[HCI_PROTO_SCO]; 5172950f21aSMarcel Holtmann if (hp && hp->disconn_ind) 5182950f21aSMarcel Holtmann reason = hp->disconn_ind(conn); 5192950f21aSMarcel Holtmann 5202950f21aSMarcel Holtmann return reason; 5212950f21aSMarcel Holtmann } 5222950f21aSMarcel Holtmann 5232950f21aSMarcel Holtmann static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 5241da177e4SLinus Torvalds { 5251da177e4SLinus Torvalds register struct hci_proto *hp; 5261da177e4SLinus Torvalds 5271da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5282950f21aSMarcel Holtmann if (hp && hp->disconn_cfm) 5292950f21aSMarcel Holtmann hp->disconn_cfm(conn, reason); 5301da177e4SLinus Torvalds 5311da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5322950f21aSMarcel Holtmann if (hp && hp->disconn_cfm) 5332950f21aSMarcel Holtmann hp->disconn_cfm(conn, reason); 5341da177e4SLinus Torvalds } 5351da177e4SLinus Torvalds 5361da177e4SLinus Torvalds static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 5371da177e4SLinus Torvalds { 5381da177e4SLinus Torvalds register struct hci_proto *hp; 5398c1b2355SMarcel Holtmann __u8 encrypt; 5408c1b2355SMarcel Holtmann 5418c1b2355SMarcel Holtmann if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 5428c1b2355SMarcel Holtmann return; 5438c1b2355SMarcel Holtmann 5448c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 5451da177e4SLinus Torvalds 5461da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5478c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5488c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5491da177e4SLinus Torvalds 5501da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5518c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5528c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5531da177e4SLinus Torvalds } 5541da177e4SLinus Torvalds 5559719f8afSMarcel Holtmann static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 5561da177e4SLinus Torvalds { 5571da177e4SLinus Torvalds register struct hci_proto *hp; 5581da177e4SLinus Torvalds 5591da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5608c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5618c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5621da177e4SLinus Torvalds 5631da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5648c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5658c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5661da177e4SLinus Torvalds } 5671da177e4SLinus Torvalds 5681da177e4SLinus Torvalds int hci_register_proto(struct hci_proto *hproto); 5691da177e4SLinus Torvalds int hci_unregister_proto(struct hci_proto *hproto); 5701da177e4SLinus Torvalds 5711da177e4SLinus Torvalds /* ----- HCI callbacks ----- */ 5721da177e4SLinus Torvalds struct hci_cb { 5731da177e4SLinus Torvalds struct list_head list; 5741da177e4SLinus Torvalds 5751da177e4SLinus Torvalds char *name; 5761da177e4SLinus Torvalds 5778c1b2355SMarcel Holtmann void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 5781da177e4SLinus Torvalds void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 5791da177e4SLinus Torvalds void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 5801da177e4SLinus Torvalds }; 5811da177e4SLinus Torvalds 5821da177e4SLinus Torvalds static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 5831da177e4SLinus Torvalds { 5841da177e4SLinus Torvalds struct list_head *p; 5858c1b2355SMarcel Holtmann __u8 encrypt; 5861da177e4SLinus Torvalds 5871da177e4SLinus Torvalds hci_proto_auth_cfm(conn, status); 5881da177e4SLinus Torvalds 5898c1b2355SMarcel Holtmann if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 5908c1b2355SMarcel Holtmann return; 5918c1b2355SMarcel Holtmann 5928c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 5938c1b2355SMarcel Holtmann 5941da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 5951da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 5961da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 5978c1b2355SMarcel Holtmann if (cb->security_cfm) 5988c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 5991da177e4SLinus Torvalds } 6001da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6011da177e4SLinus Torvalds } 6021da177e4SLinus Torvalds 6031da177e4SLinus Torvalds static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 6041da177e4SLinus Torvalds { 6051da177e4SLinus Torvalds struct list_head *p; 6061da177e4SLinus Torvalds 607435fef20SMarcel Holtmann if (conn->sec_level == BT_SECURITY_SDP) 608435fef20SMarcel Holtmann conn->sec_level = BT_SECURITY_LOW; 609435fef20SMarcel Holtmann 6109719f8afSMarcel Holtmann hci_proto_encrypt_cfm(conn, status, encrypt); 6111da177e4SLinus Torvalds 6121da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6131da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6141da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6158c1b2355SMarcel Holtmann if (cb->security_cfm) 6168c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 6171da177e4SLinus Torvalds } 6181da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6191da177e4SLinus Torvalds } 6201da177e4SLinus Torvalds 6211da177e4SLinus Torvalds static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 6221da177e4SLinus Torvalds { 6231da177e4SLinus Torvalds struct list_head *p; 6241da177e4SLinus Torvalds 6251da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6261da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6271da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6281da177e4SLinus Torvalds if (cb->key_change_cfm) 6291da177e4SLinus Torvalds cb->key_change_cfm(conn, status); 6301da177e4SLinus Torvalds } 6311da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6321da177e4SLinus Torvalds } 6331da177e4SLinus Torvalds 6341da177e4SLinus Torvalds static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) 6351da177e4SLinus Torvalds { 6361da177e4SLinus Torvalds struct list_head *p; 6371da177e4SLinus Torvalds 6381da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6391da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6401da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6411da177e4SLinus Torvalds if (cb->role_switch_cfm) 6421da177e4SLinus Torvalds cb->role_switch_cfm(conn, status, role); 6431da177e4SLinus Torvalds } 6441da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6451da177e4SLinus Torvalds } 6461da177e4SLinus Torvalds 6471da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *hcb); 6481da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *hcb); 6491da177e4SLinus Torvalds 6501da177e4SLinus Torvalds int hci_register_notifier(struct notifier_block *nb); 6511da177e4SLinus Torvalds int hci_unregister_notifier(struct notifier_block *nb); 6521da177e4SLinus Torvalds 653a9de9248SMarcel Holtmann int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 6549a9c6a34SGustavo F. Padovan void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 6550d861d8bSGustavo F. Padovan void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 6561da177e4SLinus Torvalds 657a9de9248SMarcel Holtmann void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 6581da177e4SLinus Torvalds 6591da177e4SLinus Torvalds void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 6601da177e4SLinus Torvalds 6611da177e4SLinus Torvalds /* ----- HCI Sockets ----- */ 6621da177e4SLinus Torvalds void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 6631da177e4SLinus Torvalds 6640381101fSJohan Hedberg /* Management interface */ 6650381101fSJohan Hedberg int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); 666c71e97bfSJohan Hedberg int mgmt_index_added(u16 index); 667c71e97bfSJohan Hedberg int mgmt_index_removed(u16 index); 6680381101fSJohan Hedberg 6691da177e4SLinus Torvalds /* HCI info for socket */ 6701da177e4SLinus Torvalds #define hci_pi(sk) ((struct hci_pinfo *) sk) 6711da177e4SLinus Torvalds 6721da177e4SLinus Torvalds struct hci_pinfo { 6731da177e4SLinus Torvalds struct bt_sock bt; 6741da177e4SLinus Torvalds struct hci_dev *hdev; 6751da177e4SLinus Torvalds struct hci_filter filter; 6761da177e4SLinus Torvalds __u32 cmsg_mask; 677c02178d2SJohan Hedberg unsigned short channel; 6781da177e4SLinus Torvalds }; 6791da177e4SLinus Torvalds 6801da177e4SLinus Torvalds /* HCI security filter */ 6811da177e4SLinus Torvalds #define HCI_SFLT_MAX_OGF 5 6821da177e4SLinus Torvalds 6831da177e4SLinus Torvalds struct hci_sec_filter { 6841da177e4SLinus Torvalds __u32 type_mask; 6851da177e4SLinus Torvalds __u32 event_mask[2]; 6861da177e4SLinus Torvalds __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 6871da177e4SLinus Torvalds }; 6881da177e4SLinus Torvalds 6891da177e4SLinus Torvalds /* ----- HCI requests ----- */ 6901da177e4SLinus Torvalds #define HCI_REQ_DONE 0 6911da177e4SLinus Torvalds #define HCI_REQ_PEND 1 6921da177e4SLinus Torvalds #define HCI_REQ_CANCELED 2 6931da177e4SLinus Torvalds 694a6a67efdSThomas Gleixner #define hci_req_lock(d) mutex_lock(&d->req_lock) 695a6a67efdSThomas Gleixner #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 6961da177e4SLinus Torvalds 69723bb5763SJohan Hedberg void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result); 6981da177e4SLinus Torvalds 6991da177e4SLinus Torvalds #endif /* __HCI_CORE_H */ 700