11da177e4SLinus Torvalds /* 21da177e4SLinus Torvalds BlueZ - Bluetooth protocol stack for Linux 31da177e4SLinus Torvalds Copyright (C) 2000-2001 Qualcomm Incorporated 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 651da177e4SLinus Torvalds struct hci_dev { 661da177e4SLinus Torvalds struct list_head list; 671da177e4SLinus Torvalds spinlock_t lock; 681da177e4SLinus Torvalds atomic_t refcnt; 691da177e4SLinus Torvalds 701da177e4SLinus Torvalds char name[8]; 711da177e4SLinus Torvalds unsigned long flags; 721da177e4SLinus Torvalds __u16 id; 73c13854ceSMarcel Holtmann __u8 bus; 741da177e4SLinus Torvalds bdaddr_t bdaddr; 75a9de9248SMarcel Holtmann __u8 dev_name[248]; 76a9de9248SMarcel Holtmann __u8 dev_class[3]; 771da177e4SLinus Torvalds __u8 features[8]; 78a9de9248SMarcel Holtmann __u8 commands[64]; 79333140b5SMarcel Holtmann __u8 ssp_mode; 801143e5a6SMarcel Holtmann __u8 hci_ver; 811143e5a6SMarcel Holtmann __u16 hci_rev; 821143e5a6SMarcel Holtmann __u16 manufacturer; 831da177e4SLinus Torvalds __u16 voice_setting; 841da177e4SLinus Torvalds 851da177e4SLinus Torvalds __u16 pkt_type; 865b7f9909SMarcel Holtmann __u16 esco_type; 871da177e4SLinus Torvalds __u16 link_policy; 881da177e4SLinus Torvalds __u16 link_mode; 891da177e4SLinus Torvalds 9004837f64SMarcel Holtmann __u32 idle_timeout; 9104837f64SMarcel Holtmann __u16 sniff_min_interval; 9204837f64SMarcel Holtmann __u16 sniff_max_interval; 9304837f64SMarcel Holtmann 941da177e4SLinus Torvalds unsigned long quirks; 951da177e4SLinus Torvalds 961da177e4SLinus Torvalds atomic_t cmd_cnt; 971da177e4SLinus Torvalds unsigned int acl_cnt; 981da177e4SLinus Torvalds unsigned int sco_cnt; 991da177e4SLinus Torvalds 1001da177e4SLinus Torvalds unsigned int acl_mtu; 1011da177e4SLinus Torvalds unsigned int sco_mtu; 1021da177e4SLinus Torvalds unsigned int acl_pkts; 1031da177e4SLinus Torvalds unsigned int sco_pkts; 1041da177e4SLinus Torvalds 1051da177e4SLinus Torvalds unsigned long cmd_last_tx; 1061da177e4SLinus Torvalds unsigned long acl_last_tx; 1071da177e4SLinus Torvalds unsigned long sco_last_tx; 1081da177e4SLinus Torvalds 1091da177e4SLinus Torvalds struct tasklet_struct cmd_task; 1101da177e4SLinus Torvalds struct tasklet_struct rx_task; 1111da177e4SLinus Torvalds struct tasklet_struct tx_task; 1121da177e4SLinus Torvalds 1131da177e4SLinus Torvalds struct sk_buff_head rx_q; 1141da177e4SLinus Torvalds struct sk_buff_head raw_q; 1151da177e4SLinus Torvalds struct sk_buff_head cmd_q; 1161da177e4SLinus Torvalds 1171da177e4SLinus Torvalds struct sk_buff *sent_cmd; 118ef222013SMarcel Holtmann struct sk_buff *reassembly[3]; 1191da177e4SLinus Torvalds 120a6a67efdSThomas Gleixner struct mutex req_lock; 1211da177e4SLinus Torvalds wait_queue_head_t req_wait_q; 1221da177e4SLinus Torvalds __u32 req_status; 1231da177e4SLinus Torvalds __u32 req_result; 1241da177e4SLinus Torvalds 1251da177e4SLinus Torvalds struct inquiry_cache inq_cache; 1261da177e4SLinus Torvalds struct hci_conn_hash conn_hash; 1271da177e4SLinus Torvalds 1281da177e4SLinus Torvalds struct hci_dev_stats stat; 1291da177e4SLinus Torvalds 1301da177e4SLinus Torvalds struct sk_buff_head driver_init; 1311da177e4SLinus Torvalds 1321da177e4SLinus Torvalds void *driver_data; 1331da177e4SLinus Torvalds void *core_data; 1341da177e4SLinus Torvalds 1351da177e4SLinus Torvalds atomic_t promisc; 1361da177e4SLinus Torvalds 137a91f2e39SMarcel Holtmann struct device *parent; 138a91f2e39SMarcel Holtmann struct device dev; 1391da177e4SLinus Torvalds 140611b30f7SMarcel Holtmann struct rfkill *rfkill; 141611b30f7SMarcel Holtmann 1421da177e4SLinus Torvalds struct module *owner; 1431da177e4SLinus Torvalds 1441da177e4SLinus Torvalds int (*open)(struct hci_dev *hdev); 1451da177e4SLinus Torvalds int (*close)(struct hci_dev *hdev); 1461da177e4SLinus Torvalds int (*flush)(struct hci_dev *hdev); 1471da177e4SLinus Torvalds int (*send)(struct sk_buff *skb); 1481da177e4SLinus Torvalds void (*destruct)(struct hci_dev *hdev); 1491da177e4SLinus Torvalds void (*notify)(struct hci_dev *hdev, unsigned int evt); 1501da177e4SLinus Torvalds int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 1511da177e4SLinus Torvalds }; 1521da177e4SLinus Torvalds 1531da177e4SLinus Torvalds struct hci_conn { 1541da177e4SLinus Torvalds struct list_head list; 1551da177e4SLinus Torvalds 1561da177e4SLinus Torvalds atomic_t refcnt; 1571da177e4SLinus Torvalds spinlock_t lock; 1581da177e4SLinus Torvalds 1591da177e4SLinus Torvalds bdaddr_t dst; 1601da177e4SLinus Torvalds __u16 handle; 1611da177e4SLinus Torvalds __u16 state; 16204837f64SMarcel Holtmann __u8 mode; 1631da177e4SLinus Torvalds __u8 type; 1641da177e4SLinus Torvalds __u8 out; 1654c67bc74SMarcel Holtmann __u8 attempt; 1661da177e4SLinus Torvalds __u8 dev_class[3]; 16704837f64SMarcel Holtmann __u8 features[8]; 16841a96212SMarcel Holtmann __u8 ssp_mode; 16904837f64SMarcel Holtmann __u16 interval; 170a8746417SMarcel Holtmann __u16 pkt_type; 17104837f64SMarcel Holtmann __u16 link_policy; 1721da177e4SLinus Torvalds __u32 link_mode; 17340be492fSMarcel Holtmann __u8 auth_type; 1748c1b2355SMarcel Holtmann __u8 sec_level; 17504837f64SMarcel Holtmann __u8 power_save; 176052b30b0SMarcel Holtmann __u16 disc_timeout; 1771da177e4SLinus Torvalds unsigned long pend; 1781da177e4SLinus Torvalds 1791da177e4SLinus Torvalds unsigned int sent; 1801da177e4SLinus Torvalds 1811da177e4SLinus Torvalds struct sk_buff_head data_q; 1821da177e4SLinus Torvalds 18304837f64SMarcel Holtmann struct timer_list disc_timer; 18404837f64SMarcel Holtmann struct timer_list idle_timer; 1851da177e4SLinus Torvalds 186f3784d83SRoger Quadros struct work_struct work_add; 187f3784d83SRoger Quadros struct work_struct work_del; 188b219e3acSMarcel Holtmann 189b219e3acSMarcel Holtmann struct device dev; 1909eba32b8SMarcel Holtmann atomic_t devref; 191b219e3acSMarcel Holtmann 1921da177e4SLinus Torvalds struct hci_dev *hdev; 1931da177e4SLinus Torvalds void *l2cap_data; 1941da177e4SLinus Torvalds void *sco_data; 1951da177e4SLinus Torvalds void *priv; 1961da177e4SLinus Torvalds 1971da177e4SLinus Torvalds struct hci_conn *link; 1981da177e4SLinus Torvalds }; 1991da177e4SLinus Torvalds 2001da177e4SLinus Torvalds extern struct hci_proto *hci_proto[]; 2011da177e4SLinus Torvalds extern struct list_head hci_dev_list; 2021da177e4SLinus Torvalds extern struct list_head hci_cb_list; 2031da177e4SLinus Torvalds extern rwlock_t hci_dev_list_lock; 2041da177e4SLinus Torvalds extern rwlock_t hci_cb_list_lock; 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds /* ----- Inquiry cache ----- */ 2071da177e4SLinus Torvalds #define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds 2081da177e4SLinus Torvalds #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds 2091da177e4SLinus Torvalds 2101da177e4SLinus Torvalds #define inquiry_cache_lock(c) spin_lock(&c->lock) 2111da177e4SLinus Torvalds #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 2121da177e4SLinus Torvalds #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 2131da177e4SLinus Torvalds #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 2141da177e4SLinus Torvalds 2151da177e4SLinus Torvalds static inline void inquiry_cache_init(struct hci_dev *hdev) 2161da177e4SLinus Torvalds { 2171da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2181da177e4SLinus Torvalds spin_lock_init(&c->lock); 2191da177e4SLinus Torvalds c->list = NULL; 2201da177e4SLinus Torvalds } 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds static inline int inquiry_cache_empty(struct hci_dev *hdev) 2231da177e4SLinus Torvalds { 2241da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2251da177e4SLinus Torvalds return (c->list == NULL); 2261da177e4SLinus Torvalds } 2271da177e4SLinus Torvalds 2281da177e4SLinus Torvalds static inline long inquiry_cache_age(struct hci_dev *hdev) 2291da177e4SLinus Torvalds { 2301da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2311da177e4SLinus Torvalds return jiffies - c->timestamp; 2321da177e4SLinus Torvalds } 2331da177e4SLinus Torvalds 2341da177e4SLinus Torvalds static inline long inquiry_entry_age(struct inquiry_entry *e) 2351da177e4SLinus Torvalds { 2361da177e4SLinus Torvalds return jiffies - e->timestamp; 2371da177e4SLinus Torvalds } 2381da177e4SLinus Torvalds 2391da177e4SLinus Torvalds struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 2401da177e4SLinus Torvalds void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 2411da177e4SLinus Torvalds 2421da177e4SLinus Torvalds /* ----- HCI Connections ----- */ 2431da177e4SLinus Torvalds enum { 2441da177e4SLinus Torvalds HCI_CONN_AUTH_PEND, 2451da177e4SLinus Torvalds HCI_CONN_ENCRYPT_PEND, 24604837f64SMarcel Holtmann HCI_CONN_RSWITCH_PEND, 24704837f64SMarcel Holtmann HCI_CONN_MODE_CHANGE_PEND, 2481da177e4SLinus Torvalds }; 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvalds static inline void hci_conn_hash_init(struct hci_dev *hdev) 2511da177e4SLinus Torvalds { 2521da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2531da177e4SLinus Torvalds INIT_LIST_HEAD(&h->list); 2541da177e4SLinus Torvalds spin_lock_init(&h->lock); 2551da177e4SLinus Torvalds h->acl_num = 0; 2561da177e4SLinus Torvalds h->sco_num = 0; 2571da177e4SLinus Torvalds } 2581da177e4SLinus Torvalds 2591da177e4SLinus Torvalds static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 2601da177e4SLinus Torvalds { 2611da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2621da177e4SLinus Torvalds list_add(&c->list, &h->list); 2631da177e4SLinus Torvalds if (c->type == ACL_LINK) 2641da177e4SLinus Torvalds h->acl_num++; 2651da177e4SLinus Torvalds else 2661da177e4SLinus Torvalds h->sco_num++; 2671da177e4SLinus Torvalds } 2681da177e4SLinus Torvalds 2691da177e4SLinus Torvalds static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 2701da177e4SLinus Torvalds { 2711da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2721da177e4SLinus Torvalds list_del(&c->list); 2731da177e4SLinus Torvalds if (c->type == ACL_LINK) 2741da177e4SLinus Torvalds h->acl_num--; 2751da177e4SLinus Torvalds else 2761da177e4SLinus Torvalds h->sco_num--; 2771da177e4SLinus Torvalds } 2781da177e4SLinus Torvalds 2791da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 2801da177e4SLinus Torvalds __u16 handle) 2811da177e4SLinus Torvalds { 2821da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2831da177e4SLinus Torvalds struct list_head *p; 2841da177e4SLinus Torvalds struct hci_conn *c; 2851da177e4SLinus Torvalds 2861da177e4SLinus Torvalds list_for_each(p, &h->list) { 2871da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 2881da177e4SLinus Torvalds if (c->handle == handle) 2891da177e4SLinus Torvalds return c; 2901da177e4SLinus Torvalds } 2911da177e4SLinus Torvalds return NULL; 2921da177e4SLinus Torvalds } 2931da177e4SLinus Torvalds 2941da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 2951da177e4SLinus Torvalds __u8 type, bdaddr_t *ba) 2961da177e4SLinus Torvalds { 2971da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2981da177e4SLinus Torvalds struct list_head *p; 2991da177e4SLinus Torvalds struct hci_conn *c; 3001da177e4SLinus Torvalds 3011da177e4SLinus Torvalds list_for_each(p, &h->list) { 3021da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 3031da177e4SLinus Torvalds if (c->type == type && !bacmp(&c->dst, ba)) 3041da177e4SLinus Torvalds return c; 3051da177e4SLinus Torvalds } 3061da177e4SLinus Torvalds return NULL; 3071da177e4SLinus Torvalds } 3081da177e4SLinus Torvalds 3094c67bc74SMarcel Holtmann static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 3104c67bc74SMarcel Holtmann __u8 type, __u16 state) 3114c67bc74SMarcel Holtmann { 3124c67bc74SMarcel Holtmann struct hci_conn_hash *h = &hdev->conn_hash; 3134c67bc74SMarcel Holtmann struct list_head *p; 3144c67bc74SMarcel Holtmann struct hci_conn *c; 3154c67bc74SMarcel Holtmann 3164c67bc74SMarcel Holtmann list_for_each(p, &h->list) { 3174c67bc74SMarcel Holtmann c = list_entry(p, struct hci_conn, list); 3184c67bc74SMarcel Holtmann if (c->type == type && c->state == state) 3194c67bc74SMarcel Holtmann return c; 3204c67bc74SMarcel Holtmann } 3214c67bc74SMarcel Holtmann return NULL; 3224c67bc74SMarcel Holtmann } 3234c67bc74SMarcel Holtmann 3244c67bc74SMarcel Holtmann void hci_acl_connect(struct hci_conn *conn); 3251da177e4SLinus Torvalds void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 3261da177e4SLinus Torvalds void hci_add_sco(struct hci_conn *conn, __u16 handle); 327b6a0dc82SMarcel Holtmann void hci_setup_sync(struct hci_conn *conn, __u16 handle); 3281da177e4SLinus Torvalds 3291da177e4SLinus Torvalds struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 3301da177e4SLinus Torvalds int hci_conn_del(struct hci_conn *conn); 3311da177e4SLinus Torvalds void hci_conn_hash_flush(struct hci_dev *hdev); 332a9de9248SMarcel Holtmann void hci_conn_check_pending(struct hci_dev *hdev); 3331da177e4SLinus Torvalds 3348c1b2355SMarcel Holtmann struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type); 335e7c29cb1SMarcel Holtmann int hci_conn_check_link_mode(struct hci_conn *conn); 3360684e5f9SMarcel Holtmann int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 3371da177e4SLinus Torvalds int hci_conn_change_link_key(struct hci_conn *conn); 3388c1b2355SMarcel Holtmann int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 3391da177e4SLinus Torvalds 34004837f64SMarcel Holtmann void hci_conn_enter_active_mode(struct hci_conn *conn); 34104837f64SMarcel Holtmann void hci_conn_enter_sniff_mode(struct hci_conn *conn); 3421da177e4SLinus Torvalds 3439eba32b8SMarcel Holtmann void hci_conn_hold_device(struct hci_conn *conn); 3449eba32b8SMarcel Holtmann void hci_conn_put_device(struct hci_conn *conn); 3459eba32b8SMarcel Holtmann 3461da177e4SLinus Torvalds static inline void hci_conn_hold(struct hci_conn *conn) 3471da177e4SLinus Torvalds { 3481da177e4SLinus Torvalds atomic_inc(&conn->refcnt); 34904837f64SMarcel Holtmann del_timer(&conn->disc_timer); 3501da177e4SLinus Torvalds } 3511da177e4SLinus Torvalds 3521da177e4SLinus Torvalds static inline void hci_conn_put(struct hci_conn *conn) 3531da177e4SLinus Torvalds { 3541da177e4SLinus Torvalds if (atomic_dec_and_test(&conn->refcnt)) { 35504837f64SMarcel Holtmann unsigned long timeo; 3561da177e4SLinus Torvalds if (conn->type == ACL_LINK) { 3576ac59344SMarcel Holtmann del_timer(&conn->idle_timer); 3586ac59344SMarcel Holtmann if (conn->state == BT_CONNECTED) { 359052b30b0SMarcel Holtmann timeo = msecs_to_jiffies(conn->disc_timeout); 36004837f64SMarcel Holtmann if (!conn->out) 361052b30b0SMarcel Holtmann timeo *= 2; 3626ac59344SMarcel Holtmann } else 3636ac59344SMarcel Holtmann timeo = msecs_to_jiffies(10); 3641da177e4SLinus Torvalds } else 36504837f64SMarcel Holtmann timeo = msecs_to_jiffies(10); 36604837f64SMarcel Holtmann mod_timer(&conn->disc_timer, jiffies + timeo); 3671da177e4SLinus Torvalds } 3681da177e4SLinus Torvalds } 3691da177e4SLinus Torvalds 3701da177e4SLinus Torvalds /* ----- HCI Devices ----- */ 3711da177e4SLinus Torvalds static inline void __hci_dev_put(struct hci_dev *d) 3721da177e4SLinus Torvalds { 3731da177e4SLinus Torvalds if (atomic_dec_and_test(&d->refcnt)) 3741da177e4SLinus Torvalds d->destruct(d); 3751da177e4SLinus Torvalds } 3761da177e4SLinus Torvalds 3771da177e4SLinus Torvalds static inline void hci_dev_put(struct hci_dev *d) 3781da177e4SLinus Torvalds { 3791da177e4SLinus Torvalds __hci_dev_put(d); 3801da177e4SLinus Torvalds module_put(d->owner); 3811da177e4SLinus Torvalds } 3821da177e4SLinus Torvalds 3831da177e4SLinus Torvalds static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 3841da177e4SLinus Torvalds { 3851da177e4SLinus Torvalds atomic_inc(&d->refcnt); 3861da177e4SLinus Torvalds return d; 3871da177e4SLinus Torvalds } 3881da177e4SLinus Torvalds 3891da177e4SLinus Torvalds static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 3901da177e4SLinus Torvalds { 3911da177e4SLinus Torvalds if (try_module_get(d->owner)) 3921da177e4SLinus Torvalds return __hci_dev_hold(d); 3931da177e4SLinus Torvalds return NULL; 3941da177e4SLinus Torvalds } 3951da177e4SLinus Torvalds 3961da177e4SLinus Torvalds #define hci_dev_lock(d) spin_lock(&d->lock) 3971da177e4SLinus Torvalds #define hci_dev_unlock(d) spin_unlock(&d->lock) 3981da177e4SLinus Torvalds #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 3991da177e4SLinus Torvalds #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 4001da177e4SLinus Torvalds 4011da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index); 4021da177e4SLinus Torvalds struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 4031da177e4SLinus Torvalds 4041da177e4SLinus Torvalds struct hci_dev *hci_alloc_dev(void); 4051da177e4SLinus Torvalds void hci_free_dev(struct hci_dev *hdev); 4061da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev); 4071da177e4SLinus Torvalds int hci_unregister_dev(struct hci_dev *hdev); 4081da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev); 4091da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev); 4101da177e4SLinus Torvalds int hci_dev_open(__u16 dev); 4111da177e4SLinus Torvalds int hci_dev_close(__u16 dev); 4121da177e4SLinus Torvalds int hci_dev_reset(__u16 dev); 4131da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev); 4141da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg); 4151da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg); 4161da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg); 4171da177e4SLinus Torvalds int hci_get_conn_list(void __user *arg); 4181da177e4SLinus Torvalds int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 41940be492fSMarcel Holtmann int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 4201da177e4SLinus Torvalds int hci_inquiry(void __user *arg); 4211da177e4SLinus Torvalds 4221da177e4SLinus Torvalds void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 4231da177e4SLinus Torvalds 42476bca880SMarcel Holtmann int hci_recv_frame(struct sk_buff *skb); 425ef222013SMarcel Holtmann int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 426ef222013SMarcel Holtmann 4271da177e4SLinus Torvalds int hci_register_sysfs(struct hci_dev *hdev); 4281da177e4SLinus Torvalds void hci_unregister_sysfs(struct hci_dev *hdev); 429a67e899cSMarcel Holtmann void hci_conn_init_sysfs(struct hci_conn *conn); 430b219e3acSMarcel Holtmann void hci_conn_add_sysfs(struct hci_conn *conn); 431b219e3acSMarcel Holtmann void hci_conn_del_sysfs(struct hci_conn *conn); 4321da177e4SLinus Torvalds 433a91f2e39SMarcel Holtmann #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 4341da177e4SLinus Torvalds 4351da177e4SLinus Torvalds /* ----- LMP capabilities ----- */ 43604837f64SMarcel Holtmann #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 43704837f64SMarcel Holtmann #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 43804837f64SMarcel Holtmann #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 43904837f64SMarcel Holtmann #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 4405b7f9909SMarcel Holtmann #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 441769be974SMarcel Holtmann #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 4421da177e4SLinus Torvalds 4431da177e4SLinus Torvalds /* ----- HCI protocols ----- */ 4441da177e4SLinus Torvalds struct hci_proto { 4451da177e4SLinus Torvalds char *name; 4461da177e4SLinus Torvalds unsigned int id; 4471da177e4SLinus Torvalds unsigned long flags; 4481da177e4SLinus Torvalds 4491da177e4SLinus Torvalds void *priv; 4501da177e4SLinus Torvalds 4511da177e4SLinus Torvalds int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); 4521da177e4SLinus Torvalds int (*connect_cfm) (struct hci_conn *conn, __u8 status); 4532950f21aSMarcel Holtmann int (*disconn_ind) (struct hci_conn *conn); 4542950f21aSMarcel Holtmann int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); 4551da177e4SLinus Torvalds int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 4561da177e4SLinus Torvalds int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 4578c1b2355SMarcel Holtmann int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 4581da177e4SLinus Torvalds }; 4591da177e4SLinus Torvalds 4601da177e4SLinus Torvalds static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) 4611da177e4SLinus Torvalds { 4621da177e4SLinus Torvalds register struct hci_proto *hp; 4631da177e4SLinus Torvalds int mask = 0; 4641da177e4SLinus Torvalds 4651da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4661da177e4SLinus Torvalds if (hp && hp->connect_ind) 4671da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4681da177e4SLinus Torvalds 4691da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 4701da177e4SLinus Torvalds if (hp && hp->connect_ind) 4711da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4721da177e4SLinus Torvalds 4731da177e4SLinus Torvalds return mask; 4741da177e4SLinus Torvalds } 4751da177e4SLinus Torvalds 4761da177e4SLinus Torvalds static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 4771da177e4SLinus Torvalds { 4781da177e4SLinus Torvalds register struct hci_proto *hp; 4791da177e4SLinus Torvalds 4801da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4811da177e4SLinus Torvalds if (hp && hp->connect_cfm) 4821da177e4SLinus Torvalds hp->connect_cfm(conn, status); 4831da177e4SLinus Torvalds 4841da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 4851da177e4SLinus Torvalds if (hp && hp->connect_cfm) 4861da177e4SLinus Torvalds hp->connect_cfm(conn, status); 4871da177e4SLinus Torvalds } 4881da177e4SLinus Torvalds 4892950f21aSMarcel Holtmann static inline int hci_proto_disconn_ind(struct hci_conn *conn) 4902950f21aSMarcel Holtmann { 4912950f21aSMarcel Holtmann register struct hci_proto *hp; 4922950f21aSMarcel Holtmann int reason = 0x13; 4932950f21aSMarcel Holtmann 4942950f21aSMarcel Holtmann hp = hci_proto[HCI_PROTO_L2CAP]; 4952950f21aSMarcel Holtmann if (hp && hp->disconn_ind) 4962950f21aSMarcel Holtmann reason = hp->disconn_ind(conn); 4972950f21aSMarcel Holtmann 4982950f21aSMarcel Holtmann hp = hci_proto[HCI_PROTO_SCO]; 4992950f21aSMarcel Holtmann if (hp && hp->disconn_ind) 5002950f21aSMarcel Holtmann reason = hp->disconn_ind(conn); 5012950f21aSMarcel Holtmann 5022950f21aSMarcel Holtmann return reason; 5032950f21aSMarcel Holtmann } 5042950f21aSMarcel Holtmann 5052950f21aSMarcel Holtmann static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 5061da177e4SLinus Torvalds { 5071da177e4SLinus Torvalds register struct hci_proto *hp; 5081da177e4SLinus Torvalds 5091da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5102950f21aSMarcel Holtmann if (hp && hp->disconn_cfm) 5112950f21aSMarcel Holtmann hp->disconn_cfm(conn, reason); 5121da177e4SLinus Torvalds 5131da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5142950f21aSMarcel Holtmann if (hp && hp->disconn_cfm) 5152950f21aSMarcel Holtmann hp->disconn_cfm(conn, reason); 5161da177e4SLinus Torvalds } 5171da177e4SLinus Torvalds 5181da177e4SLinus Torvalds static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 5191da177e4SLinus Torvalds { 5201da177e4SLinus Torvalds register struct hci_proto *hp; 5218c1b2355SMarcel Holtmann __u8 encrypt; 5228c1b2355SMarcel Holtmann 5238c1b2355SMarcel Holtmann if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 5248c1b2355SMarcel Holtmann return; 5258c1b2355SMarcel Holtmann 5268c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 5271da177e4SLinus Torvalds 5281da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5298c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5308c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5311da177e4SLinus Torvalds 5321da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5338c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5348c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5351da177e4SLinus Torvalds } 5361da177e4SLinus Torvalds 5379719f8afSMarcel Holtmann static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 5381da177e4SLinus Torvalds { 5391da177e4SLinus Torvalds register struct hci_proto *hp; 5401da177e4SLinus Torvalds 5411da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5428c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5438c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5441da177e4SLinus Torvalds 5451da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5468c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5478c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5481da177e4SLinus Torvalds } 5491da177e4SLinus Torvalds 5501da177e4SLinus Torvalds int hci_register_proto(struct hci_proto *hproto); 5511da177e4SLinus Torvalds int hci_unregister_proto(struct hci_proto *hproto); 5521da177e4SLinus Torvalds 5531da177e4SLinus Torvalds /* ----- HCI callbacks ----- */ 5541da177e4SLinus Torvalds struct hci_cb { 5551da177e4SLinus Torvalds struct list_head list; 5561da177e4SLinus Torvalds 5571da177e4SLinus Torvalds char *name; 5581da177e4SLinus Torvalds 5598c1b2355SMarcel Holtmann void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 5601da177e4SLinus Torvalds void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 5611da177e4SLinus Torvalds void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 5621da177e4SLinus Torvalds }; 5631da177e4SLinus Torvalds 5641da177e4SLinus Torvalds static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 5651da177e4SLinus Torvalds { 5661da177e4SLinus Torvalds struct list_head *p; 5678c1b2355SMarcel Holtmann __u8 encrypt; 5681da177e4SLinus Torvalds 5691da177e4SLinus Torvalds hci_proto_auth_cfm(conn, status); 5701da177e4SLinus Torvalds 5718c1b2355SMarcel Holtmann if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 5728c1b2355SMarcel Holtmann return; 5738c1b2355SMarcel Holtmann 5748c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 5758c1b2355SMarcel Holtmann 5761da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 5771da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 5781da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 5798c1b2355SMarcel Holtmann if (cb->security_cfm) 5808c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 5811da177e4SLinus Torvalds } 5821da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 5831da177e4SLinus Torvalds } 5841da177e4SLinus Torvalds 5851da177e4SLinus Torvalds static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 5861da177e4SLinus Torvalds { 5871da177e4SLinus Torvalds struct list_head *p; 5881da177e4SLinus Torvalds 589435fef20SMarcel Holtmann if (conn->sec_level == BT_SECURITY_SDP) 590435fef20SMarcel Holtmann conn->sec_level = BT_SECURITY_LOW; 591435fef20SMarcel Holtmann 5929719f8afSMarcel Holtmann hci_proto_encrypt_cfm(conn, status, encrypt); 5931da177e4SLinus Torvalds 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_key_change_cfm(struct hci_conn *conn, __u8 status) 6041da177e4SLinus Torvalds { 6051da177e4SLinus Torvalds struct list_head *p; 6061da177e4SLinus Torvalds 6071da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6081da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6091da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6101da177e4SLinus Torvalds if (cb->key_change_cfm) 6111da177e4SLinus Torvalds cb->key_change_cfm(conn, status); 6121da177e4SLinus Torvalds } 6131da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6141da177e4SLinus Torvalds } 6151da177e4SLinus Torvalds 6161da177e4SLinus Torvalds static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) 6171da177e4SLinus Torvalds { 6181da177e4SLinus Torvalds struct list_head *p; 6191da177e4SLinus Torvalds 6201da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6211da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6221da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6231da177e4SLinus Torvalds if (cb->role_switch_cfm) 6241da177e4SLinus Torvalds cb->role_switch_cfm(conn, status, role); 6251da177e4SLinus Torvalds } 6261da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6271da177e4SLinus Torvalds } 6281da177e4SLinus Torvalds 6291da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *hcb); 6301da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *hcb); 6311da177e4SLinus Torvalds 6321da177e4SLinus Torvalds int hci_register_notifier(struct notifier_block *nb); 6331da177e4SLinus Torvalds int hci_unregister_notifier(struct notifier_block *nb); 6341da177e4SLinus Torvalds 635a9de9248SMarcel Holtmann int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 6361da177e4SLinus Torvalds int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 6371da177e4SLinus Torvalds int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 6381da177e4SLinus Torvalds 639a9de9248SMarcel Holtmann void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 6401da177e4SLinus Torvalds 6411da177e4SLinus Torvalds void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 6421da177e4SLinus Torvalds 6431da177e4SLinus Torvalds /* ----- HCI Sockets ----- */ 6441da177e4SLinus Torvalds void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds /* HCI info for socket */ 6471da177e4SLinus Torvalds #define hci_pi(sk) ((struct hci_pinfo *) sk) 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds struct hci_pinfo { 6501da177e4SLinus Torvalds struct bt_sock bt; 6511da177e4SLinus Torvalds struct hci_dev *hdev; 6521da177e4SLinus Torvalds struct hci_filter filter; 6531da177e4SLinus Torvalds __u32 cmsg_mask; 6541da177e4SLinus Torvalds }; 6551da177e4SLinus Torvalds 6561da177e4SLinus Torvalds /* HCI security filter */ 6571da177e4SLinus Torvalds #define HCI_SFLT_MAX_OGF 5 6581da177e4SLinus Torvalds 6591da177e4SLinus Torvalds struct hci_sec_filter { 6601da177e4SLinus Torvalds __u32 type_mask; 6611da177e4SLinus Torvalds __u32 event_mask[2]; 6621da177e4SLinus Torvalds __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 6631da177e4SLinus Torvalds }; 6641da177e4SLinus Torvalds 6651da177e4SLinus Torvalds /* ----- HCI requests ----- */ 6661da177e4SLinus Torvalds #define HCI_REQ_DONE 0 6671da177e4SLinus Torvalds #define HCI_REQ_PEND 1 6681da177e4SLinus Torvalds #define HCI_REQ_CANCELED 2 6691da177e4SLinus Torvalds 670a6a67efdSThomas Gleixner #define hci_req_lock(d) mutex_lock(&d->req_lock) 671a6a67efdSThomas Gleixner #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 6721da177e4SLinus Torvalds 6731da177e4SLinus Torvalds void hci_req_complete(struct hci_dev *hdev, int result); 6741da177e4SLinus Torvalds 6751da177e4SLinus Torvalds #endif /* __HCI_CORE_H */ 676