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; 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvalds struct inquiry_cache inq_cache; 1341da177e4SLinus Torvalds struct hci_conn_hash conn_hash; 135ea4bd8baSDavid Miller struct list_head blacklist; 1361da177e4SLinus Torvalds 1371da177e4SLinus Torvalds struct hci_dev_stats stat; 1381da177e4SLinus Torvalds 1391da177e4SLinus Torvalds struct sk_buff_head driver_init; 1401da177e4SLinus Torvalds 1411da177e4SLinus Torvalds void *driver_data; 1421da177e4SLinus Torvalds void *core_data; 1431da177e4SLinus Torvalds 1441da177e4SLinus Torvalds atomic_t promisc; 1451da177e4SLinus Torvalds 146ca325f69SMarcel Holtmann struct dentry *debugfs; 147ca325f69SMarcel Holtmann 148a91f2e39SMarcel Holtmann struct device *parent; 149a91f2e39SMarcel Holtmann struct device dev; 1501da177e4SLinus Torvalds 151611b30f7SMarcel Holtmann struct rfkill *rfkill; 152611b30f7SMarcel Holtmann 1531da177e4SLinus Torvalds struct module *owner; 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvalds int (*open)(struct hci_dev *hdev); 1561da177e4SLinus Torvalds int (*close)(struct hci_dev *hdev); 1571da177e4SLinus Torvalds int (*flush)(struct hci_dev *hdev); 1581da177e4SLinus Torvalds int (*send)(struct sk_buff *skb); 1591da177e4SLinus Torvalds void (*destruct)(struct hci_dev *hdev); 1601da177e4SLinus Torvalds void (*notify)(struct hci_dev *hdev, unsigned int evt); 1611da177e4SLinus Torvalds int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 1621da177e4SLinus Torvalds }; 1631da177e4SLinus Torvalds 1641da177e4SLinus Torvalds struct hci_conn { 1651da177e4SLinus Torvalds struct list_head list; 1661da177e4SLinus Torvalds 1671da177e4SLinus Torvalds atomic_t refcnt; 1681da177e4SLinus Torvalds spinlock_t lock; 1691da177e4SLinus Torvalds 1701da177e4SLinus Torvalds bdaddr_t dst; 1711da177e4SLinus Torvalds __u16 handle; 1721da177e4SLinus Torvalds __u16 state; 17304837f64SMarcel Holtmann __u8 mode; 1741da177e4SLinus Torvalds __u8 type; 1751da177e4SLinus Torvalds __u8 out; 1764c67bc74SMarcel Holtmann __u8 attempt; 1771da177e4SLinus Torvalds __u8 dev_class[3]; 17804837f64SMarcel Holtmann __u8 features[8]; 17941a96212SMarcel Holtmann __u8 ssp_mode; 18004837f64SMarcel Holtmann __u16 interval; 181a8746417SMarcel Holtmann __u16 pkt_type; 18204837f64SMarcel Holtmann __u16 link_policy; 1831da177e4SLinus Torvalds __u32 link_mode; 18440be492fSMarcel Holtmann __u8 auth_type; 1858c1b2355SMarcel Holtmann __u8 sec_level; 18604837f64SMarcel Holtmann __u8 power_save; 187052b30b0SMarcel Holtmann __u16 disc_timeout; 1881da177e4SLinus Torvalds unsigned long pend; 1891da177e4SLinus Torvalds 1901da177e4SLinus Torvalds unsigned int sent; 1911da177e4SLinus Torvalds 1921da177e4SLinus Torvalds struct sk_buff_head data_q; 1931da177e4SLinus Torvalds 19404837f64SMarcel Holtmann struct timer_list disc_timer; 19504837f64SMarcel Holtmann struct timer_list idle_timer; 1961da177e4SLinus Torvalds 197f3784d83SRoger Quadros struct work_struct work_add; 198f3784d83SRoger Quadros struct work_struct work_del; 199b219e3acSMarcel Holtmann 200b219e3acSMarcel Holtmann struct device dev; 2019eba32b8SMarcel Holtmann atomic_t devref; 202b219e3acSMarcel Holtmann 2031da177e4SLinus Torvalds struct hci_dev *hdev; 2041da177e4SLinus Torvalds void *l2cap_data; 2051da177e4SLinus Torvalds void *sco_data; 2061da177e4SLinus Torvalds void *priv; 2071da177e4SLinus Torvalds 2081da177e4SLinus Torvalds struct hci_conn *link; 2091da177e4SLinus Torvalds }; 2101da177e4SLinus Torvalds 2111da177e4SLinus Torvalds extern struct hci_proto *hci_proto[]; 2121da177e4SLinus Torvalds extern struct list_head hci_dev_list; 2131da177e4SLinus Torvalds extern struct list_head hci_cb_list; 2141da177e4SLinus Torvalds extern rwlock_t hci_dev_list_lock; 2151da177e4SLinus Torvalds extern rwlock_t hci_cb_list_lock; 2161da177e4SLinus Torvalds 2171da177e4SLinus Torvalds /* ----- Inquiry cache ----- */ 2181da177e4SLinus Torvalds #define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds 2191da177e4SLinus Torvalds #define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds 2201da177e4SLinus Torvalds 2211da177e4SLinus Torvalds #define inquiry_cache_lock(c) spin_lock(&c->lock) 2221da177e4SLinus Torvalds #define inquiry_cache_unlock(c) spin_unlock(&c->lock) 2231da177e4SLinus Torvalds #define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) 2241da177e4SLinus Torvalds #define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) 2251da177e4SLinus Torvalds 2261da177e4SLinus Torvalds static inline void inquiry_cache_init(struct hci_dev *hdev) 2271da177e4SLinus Torvalds { 2281da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2291da177e4SLinus Torvalds spin_lock_init(&c->lock); 2301da177e4SLinus Torvalds c->list = NULL; 2311da177e4SLinus Torvalds } 2321da177e4SLinus Torvalds 2331da177e4SLinus Torvalds static inline int inquiry_cache_empty(struct hci_dev *hdev) 2341da177e4SLinus Torvalds { 2351da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2361da177e4SLinus Torvalds return (c->list == NULL); 2371da177e4SLinus Torvalds } 2381da177e4SLinus Torvalds 2391da177e4SLinus Torvalds static inline long inquiry_cache_age(struct hci_dev *hdev) 2401da177e4SLinus Torvalds { 2411da177e4SLinus Torvalds struct inquiry_cache *c = &hdev->inq_cache; 2421da177e4SLinus Torvalds return jiffies - c->timestamp; 2431da177e4SLinus Torvalds } 2441da177e4SLinus Torvalds 2451da177e4SLinus Torvalds static inline long inquiry_entry_age(struct inquiry_entry *e) 2461da177e4SLinus Torvalds { 2471da177e4SLinus Torvalds return jiffies - e->timestamp; 2481da177e4SLinus Torvalds } 2491da177e4SLinus Torvalds 2501da177e4SLinus Torvalds struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 2511da177e4SLinus Torvalds void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); 2521da177e4SLinus Torvalds 2531da177e4SLinus Torvalds /* ----- HCI Connections ----- */ 2541da177e4SLinus Torvalds enum { 2551da177e4SLinus Torvalds HCI_CONN_AUTH_PEND, 2561da177e4SLinus Torvalds HCI_CONN_ENCRYPT_PEND, 25704837f64SMarcel Holtmann HCI_CONN_RSWITCH_PEND, 25804837f64SMarcel Holtmann HCI_CONN_MODE_CHANGE_PEND, 259e73439d8SMarcel Holtmann HCI_CONN_SCO_SETUP_PEND, 2601da177e4SLinus Torvalds }; 2611da177e4SLinus Torvalds 2621da177e4SLinus Torvalds static inline void hci_conn_hash_init(struct hci_dev *hdev) 2631da177e4SLinus Torvalds { 2641da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2651da177e4SLinus Torvalds INIT_LIST_HEAD(&h->list); 2661da177e4SLinus Torvalds spin_lock_init(&h->lock); 2671da177e4SLinus Torvalds h->acl_num = 0; 2681da177e4SLinus Torvalds h->sco_num = 0; 2691da177e4SLinus Torvalds } 2701da177e4SLinus Torvalds 2711da177e4SLinus Torvalds static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 2721da177e4SLinus Torvalds { 2731da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2741da177e4SLinus Torvalds list_add(&c->list, &h->list); 2751da177e4SLinus Torvalds if (c->type == ACL_LINK) 2761da177e4SLinus Torvalds h->acl_num++; 2771da177e4SLinus Torvalds else 2781da177e4SLinus Torvalds h->sco_num++; 2791da177e4SLinus Torvalds } 2801da177e4SLinus Torvalds 2811da177e4SLinus Torvalds static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 2821da177e4SLinus Torvalds { 2831da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2841da177e4SLinus Torvalds list_del(&c->list); 2851da177e4SLinus Torvalds if (c->type == ACL_LINK) 2861da177e4SLinus Torvalds h->acl_num--; 2871da177e4SLinus Torvalds else 2881da177e4SLinus Torvalds h->sco_num--; 2891da177e4SLinus Torvalds } 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 2921da177e4SLinus Torvalds __u16 handle) 2931da177e4SLinus Torvalds { 2941da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 2951da177e4SLinus Torvalds struct list_head *p; 2961da177e4SLinus Torvalds struct hci_conn *c; 2971da177e4SLinus Torvalds 2981da177e4SLinus Torvalds list_for_each(p, &h->list) { 2991da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 3001da177e4SLinus Torvalds if (c->handle == handle) 3011da177e4SLinus Torvalds return c; 3021da177e4SLinus Torvalds } 3031da177e4SLinus Torvalds return NULL; 3041da177e4SLinus Torvalds } 3051da177e4SLinus Torvalds 3061da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 3071da177e4SLinus Torvalds __u8 type, bdaddr_t *ba) 3081da177e4SLinus Torvalds { 3091da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 3101da177e4SLinus Torvalds struct list_head *p; 3111da177e4SLinus Torvalds struct hci_conn *c; 3121da177e4SLinus Torvalds 3131da177e4SLinus Torvalds list_for_each(p, &h->list) { 3141da177e4SLinus Torvalds c = list_entry(p, struct hci_conn, list); 3151da177e4SLinus Torvalds if (c->type == type && !bacmp(&c->dst, ba)) 3161da177e4SLinus Torvalds return c; 3171da177e4SLinus Torvalds } 3181da177e4SLinus Torvalds return NULL; 3191da177e4SLinus Torvalds } 3201da177e4SLinus Torvalds 3214c67bc74SMarcel Holtmann static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 3224c67bc74SMarcel Holtmann __u8 type, __u16 state) 3234c67bc74SMarcel Holtmann { 3244c67bc74SMarcel Holtmann struct hci_conn_hash *h = &hdev->conn_hash; 3254c67bc74SMarcel Holtmann struct list_head *p; 3264c67bc74SMarcel Holtmann struct hci_conn *c; 3274c67bc74SMarcel Holtmann 3284c67bc74SMarcel Holtmann list_for_each(p, &h->list) { 3294c67bc74SMarcel Holtmann c = list_entry(p, struct hci_conn, list); 3304c67bc74SMarcel Holtmann if (c->type == type && c->state == state) 3314c67bc74SMarcel Holtmann return c; 3324c67bc74SMarcel Holtmann } 3334c67bc74SMarcel Holtmann return NULL; 3344c67bc74SMarcel Holtmann } 3354c67bc74SMarcel Holtmann 3364c67bc74SMarcel Holtmann void hci_acl_connect(struct hci_conn *conn); 3371da177e4SLinus Torvalds void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 3381da177e4SLinus Torvalds void hci_add_sco(struct hci_conn *conn, __u16 handle); 339b6a0dc82SMarcel Holtmann void hci_setup_sync(struct hci_conn *conn, __u16 handle); 340e73439d8SMarcel Holtmann void hci_sco_setup(struct hci_conn *conn, __u8 status); 3411da177e4SLinus Torvalds 3421da177e4SLinus Torvalds struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 3431da177e4SLinus Torvalds int hci_conn_del(struct hci_conn *conn); 3441da177e4SLinus Torvalds void hci_conn_hash_flush(struct hci_dev *hdev); 345a9de9248SMarcel Holtmann void hci_conn_check_pending(struct hci_dev *hdev); 3461da177e4SLinus Torvalds 3478c1b2355SMarcel Holtmann struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type); 348e7c29cb1SMarcel Holtmann int hci_conn_check_link_mode(struct hci_conn *conn); 3490684e5f9SMarcel Holtmann int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 3501da177e4SLinus Torvalds int hci_conn_change_link_key(struct hci_conn *conn); 3518c1b2355SMarcel Holtmann int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 3521da177e4SLinus Torvalds 35304837f64SMarcel Holtmann void hci_conn_enter_active_mode(struct hci_conn *conn); 35404837f64SMarcel Holtmann void hci_conn_enter_sniff_mode(struct hci_conn *conn); 3551da177e4SLinus Torvalds 3569eba32b8SMarcel Holtmann void hci_conn_hold_device(struct hci_conn *conn); 3579eba32b8SMarcel Holtmann void hci_conn_put_device(struct hci_conn *conn); 3589eba32b8SMarcel Holtmann 3591da177e4SLinus Torvalds static inline void hci_conn_hold(struct hci_conn *conn) 3601da177e4SLinus Torvalds { 3611da177e4SLinus Torvalds atomic_inc(&conn->refcnt); 36204837f64SMarcel Holtmann del_timer(&conn->disc_timer); 3631da177e4SLinus Torvalds } 3641da177e4SLinus Torvalds 3651da177e4SLinus Torvalds static inline void hci_conn_put(struct hci_conn *conn) 3661da177e4SLinus Torvalds { 3671da177e4SLinus Torvalds if (atomic_dec_and_test(&conn->refcnt)) { 36804837f64SMarcel Holtmann unsigned long timeo; 3691da177e4SLinus Torvalds if (conn->type == ACL_LINK) { 3706ac59344SMarcel Holtmann del_timer(&conn->idle_timer); 3716ac59344SMarcel Holtmann if (conn->state == BT_CONNECTED) { 372052b30b0SMarcel Holtmann timeo = msecs_to_jiffies(conn->disc_timeout); 37304837f64SMarcel Holtmann if (!conn->out) 374052b30b0SMarcel Holtmann timeo *= 2; 3756ac59344SMarcel Holtmann } else 3766ac59344SMarcel Holtmann timeo = msecs_to_jiffies(10); 3771da177e4SLinus Torvalds } else 37804837f64SMarcel Holtmann timeo = msecs_to_jiffies(10); 37904837f64SMarcel Holtmann mod_timer(&conn->disc_timer, jiffies + timeo); 3801da177e4SLinus Torvalds } 3811da177e4SLinus Torvalds } 3821da177e4SLinus Torvalds 3831da177e4SLinus Torvalds /* ----- HCI Devices ----- */ 3841da177e4SLinus Torvalds static inline void __hci_dev_put(struct hci_dev *d) 3851da177e4SLinus Torvalds { 3861da177e4SLinus Torvalds if (atomic_dec_and_test(&d->refcnt)) 3871da177e4SLinus Torvalds d->destruct(d); 3881da177e4SLinus Torvalds } 3891da177e4SLinus Torvalds 3901da177e4SLinus Torvalds static inline void hci_dev_put(struct hci_dev *d) 3911da177e4SLinus Torvalds { 3921da177e4SLinus Torvalds __hci_dev_put(d); 3931da177e4SLinus Torvalds module_put(d->owner); 3941da177e4SLinus Torvalds } 3951da177e4SLinus Torvalds 3961da177e4SLinus Torvalds static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) 3971da177e4SLinus Torvalds { 3981da177e4SLinus Torvalds atomic_inc(&d->refcnt); 3991da177e4SLinus Torvalds return d; 4001da177e4SLinus Torvalds } 4011da177e4SLinus Torvalds 4021da177e4SLinus Torvalds static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 4031da177e4SLinus Torvalds { 4041da177e4SLinus Torvalds if (try_module_get(d->owner)) 4051da177e4SLinus Torvalds return __hci_dev_hold(d); 4061da177e4SLinus Torvalds return NULL; 4071da177e4SLinus Torvalds } 4081da177e4SLinus Torvalds 4091da177e4SLinus Torvalds #define hci_dev_lock(d) spin_lock(&d->lock) 4101da177e4SLinus Torvalds #define hci_dev_unlock(d) spin_unlock(&d->lock) 4111da177e4SLinus Torvalds #define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) 4121da177e4SLinus Torvalds #define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) 4131da177e4SLinus Torvalds 4141da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index); 4151da177e4SLinus Torvalds struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 4161da177e4SLinus Torvalds 4171da177e4SLinus Torvalds struct hci_dev *hci_alloc_dev(void); 4181da177e4SLinus Torvalds void hci_free_dev(struct hci_dev *hdev); 4191da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev); 4201da177e4SLinus Torvalds int hci_unregister_dev(struct hci_dev *hdev); 4211da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev); 4221da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev); 4231da177e4SLinus Torvalds int hci_dev_open(__u16 dev); 4241da177e4SLinus Torvalds int hci_dev_close(__u16 dev); 4251da177e4SLinus Torvalds int hci_dev_reset(__u16 dev); 4261da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev); 4271da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg); 4281da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg); 4291da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg); 4301da177e4SLinus Torvalds int hci_get_conn_list(void __user *arg); 4311da177e4SLinus Torvalds int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 43240be492fSMarcel Holtmann int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 4331da177e4SLinus Torvalds int hci_inquiry(void __user *arg); 4341da177e4SLinus Torvalds 435f0358568SJohan Hedberg struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 436f0358568SJohan Hedberg int hci_blacklist_clear(struct hci_dev *hdev); 437f0358568SJohan Hedberg 4381da177e4SLinus Torvalds void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 4391da177e4SLinus Torvalds 44076bca880SMarcel Holtmann int hci_recv_frame(struct sk_buff *skb); 441ef222013SMarcel Holtmann int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 44299811510SSuraj Sumangala int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); 443ef222013SMarcel Holtmann 4441da177e4SLinus Torvalds int hci_register_sysfs(struct hci_dev *hdev); 4451da177e4SLinus Torvalds void hci_unregister_sysfs(struct hci_dev *hdev); 446a67e899cSMarcel Holtmann void hci_conn_init_sysfs(struct hci_conn *conn); 447b219e3acSMarcel Holtmann void hci_conn_add_sysfs(struct hci_conn *conn); 448b219e3acSMarcel Holtmann void hci_conn_del_sysfs(struct hci_conn *conn); 4491da177e4SLinus Torvalds 450a91f2e39SMarcel Holtmann #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 4511da177e4SLinus Torvalds 4521da177e4SLinus Torvalds /* ----- LMP capabilities ----- */ 45304837f64SMarcel Holtmann #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 45404837f64SMarcel Holtmann #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 45504837f64SMarcel Holtmann #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 45604837f64SMarcel Holtmann #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 4575b7f9909SMarcel Holtmann #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 458769be974SMarcel Holtmann #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 4591da177e4SLinus Torvalds 4601da177e4SLinus Torvalds /* ----- HCI protocols ----- */ 4611da177e4SLinus Torvalds struct hci_proto { 4621da177e4SLinus Torvalds char *name; 4631da177e4SLinus Torvalds unsigned int id; 4641da177e4SLinus Torvalds unsigned long flags; 4651da177e4SLinus Torvalds 4661da177e4SLinus Torvalds void *priv; 4671da177e4SLinus Torvalds 4681da177e4SLinus Torvalds int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); 4691da177e4SLinus Torvalds int (*connect_cfm) (struct hci_conn *conn, __u8 status); 4702950f21aSMarcel Holtmann int (*disconn_ind) (struct hci_conn *conn); 4712950f21aSMarcel Holtmann int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); 4721da177e4SLinus Torvalds int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 4731da177e4SLinus Torvalds int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); 4748c1b2355SMarcel Holtmann int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 4751da177e4SLinus Torvalds }; 4761da177e4SLinus Torvalds 4771da177e4SLinus Torvalds static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) 4781da177e4SLinus Torvalds { 4791da177e4SLinus Torvalds register struct hci_proto *hp; 4801da177e4SLinus Torvalds int mask = 0; 4811da177e4SLinus Torvalds 4821da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4831da177e4SLinus Torvalds if (hp && hp->connect_ind) 4841da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4851da177e4SLinus Torvalds 4861da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 4871da177e4SLinus Torvalds if (hp && hp->connect_ind) 4881da177e4SLinus Torvalds mask |= hp->connect_ind(hdev, bdaddr, type); 4891da177e4SLinus Torvalds 4901da177e4SLinus Torvalds return mask; 4911da177e4SLinus Torvalds } 4921da177e4SLinus Torvalds 4931da177e4SLinus Torvalds static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 4941da177e4SLinus Torvalds { 4951da177e4SLinus Torvalds register struct hci_proto *hp; 4961da177e4SLinus Torvalds 4971da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 4981da177e4SLinus Torvalds if (hp && hp->connect_cfm) 4991da177e4SLinus Torvalds hp->connect_cfm(conn, status); 5001da177e4SLinus Torvalds 5011da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5021da177e4SLinus Torvalds if (hp && hp->connect_cfm) 5031da177e4SLinus Torvalds hp->connect_cfm(conn, status); 5041da177e4SLinus Torvalds } 5051da177e4SLinus Torvalds 5062950f21aSMarcel Holtmann static inline int hci_proto_disconn_ind(struct hci_conn *conn) 5072950f21aSMarcel Holtmann { 5082950f21aSMarcel Holtmann register struct hci_proto *hp; 5092950f21aSMarcel Holtmann int reason = 0x13; 5102950f21aSMarcel Holtmann 5112950f21aSMarcel Holtmann hp = hci_proto[HCI_PROTO_L2CAP]; 5122950f21aSMarcel Holtmann if (hp && hp->disconn_ind) 5132950f21aSMarcel Holtmann reason = hp->disconn_ind(conn); 5142950f21aSMarcel Holtmann 5152950f21aSMarcel Holtmann hp = hci_proto[HCI_PROTO_SCO]; 5162950f21aSMarcel Holtmann if (hp && hp->disconn_ind) 5172950f21aSMarcel Holtmann reason = hp->disconn_ind(conn); 5182950f21aSMarcel Holtmann 5192950f21aSMarcel Holtmann return reason; 5202950f21aSMarcel Holtmann } 5212950f21aSMarcel Holtmann 5222950f21aSMarcel Holtmann static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 5231da177e4SLinus Torvalds { 5241da177e4SLinus Torvalds register struct hci_proto *hp; 5251da177e4SLinus Torvalds 5261da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5272950f21aSMarcel Holtmann if (hp && hp->disconn_cfm) 5282950f21aSMarcel Holtmann hp->disconn_cfm(conn, reason); 5291da177e4SLinus Torvalds 5301da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5312950f21aSMarcel Holtmann if (hp && hp->disconn_cfm) 5322950f21aSMarcel Holtmann hp->disconn_cfm(conn, reason); 5331da177e4SLinus Torvalds } 5341da177e4SLinus Torvalds 5351da177e4SLinus Torvalds static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 5361da177e4SLinus Torvalds { 5371da177e4SLinus Torvalds register struct hci_proto *hp; 5388c1b2355SMarcel Holtmann __u8 encrypt; 5398c1b2355SMarcel Holtmann 5408c1b2355SMarcel Holtmann if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 5418c1b2355SMarcel Holtmann return; 5428c1b2355SMarcel Holtmann 5438c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 5441da177e4SLinus Torvalds 5451da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5468c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5478c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5481da177e4SLinus Torvalds 5491da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5508c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5518c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5521da177e4SLinus Torvalds } 5531da177e4SLinus Torvalds 5549719f8afSMarcel Holtmann static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 5551da177e4SLinus Torvalds { 5561da177e4SLinus Torvalds register struct hci_proto *hp; 5571da177e4SLinus Torvalds 5581da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_L2CAP]; 5598c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5608c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5611da177e4SLinus Torvalds 5621da177e4SLinus Torvalds hp = hci_proto[HCI_PROTO_SCO]; 5638c1b2355SMarcel Holtmann if (hp && hp->security_cfm) 5648c1b2355SMarcel Holtmann hp->security_cfm(conn, status, encrypt); 5651da177e4SLinus Torvalds } 5661da177e4SLinus Torvalds 5671da177e4SLinus Torvalds int hci_register_proto(struct hci_proto *hproto); 5681da177e4SLinus Torvalds int hci_unregister_proto(struct hci_proto *hproto); 5691da177e4SLinus Torvalds 5701da177e4SLinus Torvalds /* ----- HCI callbacks ----- */ 5711da177e4SLinus Torvalds struct hci_cb { 5721da177e4SLinus Torvalds struct list_head list; 5731da177e4SLinus Torvalds 5741da177e4SLinus Torvalds char *name; 5751da177e4SLinus Torvalds 5768c1b2355SMarcel Holtmann void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); 5771da177e4SLinus Torvalds void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 5781da177e4SLinus Torvalds void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 5791da177e4SLinus Torvalds }; 5801da177e4SLinus Torvalds 5811da177e4SLinus Torvalds static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 5821da177e4SLinus Torvalds { 5831da177e4SLinus Torvalds struct list_head *p; 5848c1b2355SMarcel Holtmann __u8 encrypt; 5851da177e4SLinus Torvalds 5861da177e4SLinus Torvalds hci_proto_auth_cfm(conn, status); 5871da177e4SLinus Torvalds 5888c1b2355SMarcel Holtmann if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) 5898c1b2355SMarcel Holtmann return; 5908c1b2355SMarcel Holtmann 5918c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 5928c1b2355SMarcel Holtmann 5931da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 5941da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 5951da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 5968c1b2355SMarcel Holtmann if (cb->security_cfm) 5978c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 5981da177e4SLinus Torvalds } 5991da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6001da177e4SLinus Torvalds } 6011da177e4SLinus Torvalds 6021da177e4SLinus Torvalds static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) 6031da177e4SLinus Torvalds { 6041da177e4SLinus Torvalds struct list_head *p; 6051da177e4SLinus Torvalds 606435fef20SMarcel Holtmann if (conn->sec_level == BT_SECURITY_SDP) 607435fef20SMarcel Holtmann conn->sec_level = BT_SECURITY_LOW; 608435fef20SMarcel Holtmann 6099719f8afSMarcel Holtmann hci_proto_encrypt_cfm(conn, status, encrypt); 6101da177e4SLinus Torvalds 6111da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6121da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6131da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6148c1b2355SMarcel Holtmann if (cb->security_cfm) 6158c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 6161da177e4SLinus Torvalds } 6171da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6181da177e4SLinus Torvalds } 6191da177e4SLinus Torvalds 6201da177e4SLinus Torvalds static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 6211da177e4SLinus Torvalds { 6221da177e4SLinus Torvalds struct list_head *p; 6231da177e4SLinus Torvalds 6241da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6251da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6261da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6271da177e4SLinus Torvalds if (cb->key_change_cfm) 6281da177e4SLinus Torvalds cb->key_change_cfm(conn, status); 6291da177e4SLinus Torvalds } 6301da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6311da177e4SLinus Torvalds } 6321da177e4SLinus Torvalds 6331da177e4SLinus Torvalds static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) 6341da177e4SLinus Torvalds { 6351da177e4SLinus Torvalds struct list_head *p; 6361da177e4SLinus Torvalds 6371da177e4SLinus Torvalds read_lock_bh(&hci_cb_list_lock); 6381da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 6391da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 6401da177e4SLinus Torvalds if (cb->role_switch_cfm) 6411da177e4SLinus Torvalds cb->role_switch_cfm(conn, status, role); 6421da177e4SLinus Torvalds } 6431da177e4SLinus Torvalds read_unlock_bh(&hci_cb_list_lock); 6441da177e4SLinus Torvalds } 6451da177e4SLinus Torvalds 6461da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *hcb); 6471da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *hcb); 6481da177e4SLinus Torvalds 6491da177e4SLinus Torvalds int hci_register_notifier(struct notifier_block *nb); 6501da177e4SLinus Torvalds int hci_unregister_notifier(struct notifier_block *nb); 6511da177e4SLinus Torvalds 652a9de9248SMarcel Holtmann int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 6539a9c6a34SGustavo F. Padovan void hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); 6540d861d8bSGustavo F. Padovan void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 6551da177e4SLinus Torvalds 656a9de9248SMarcel Holtmann void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 6571da177e4SLinus Torvalds 6581da177e4SLinus Torvalds void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 6591da177e4SLinus Torvalds 6601da177e4SLinus Torvalds /* ----- HCI Sockets ----- */ 6611da177e4SLinus Torvalds void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 6621da177e4SLinus Torvalds 6631da177e4SLinus Torvalds /* HCI info for socket */ 6641da177e4SLinus Torvalds #define hci_pi(sk) ((struct hci_pinfo *) sk) 6651da177e4SLinus Torvalds 6661da177e4SLinus Torvalds struct hci_pinfo { 6671da177e4SLinus Torvalds struct bt_sock bt; 6681da177e4SLinus Torvalds struct hci_dev *hdev; 6691da177e4SLinus Torvalds struct hci_filter filter; 6701da177e4SLinus Torvalds __u32 cmsg_mask; 6711da177e4SLinus Torvalds }; 6721da177e4SLinus Torvalds 6731da177e4SLinus Torvalds /* HCI security filter */ 6741da177e4SLinus Torvalds #define HCI_SFLT_MAX_OGF 5 6751da177e4SLinus Torvalds 6761da177e4SLinus Torvalds struct hci_sec_filter { 6771da177e4SLinus Torvalds __u32 type_mask; 6781da177e4SLinus Torvalds __u32 event_mask[2]; 6791da177e4SLinus Torvalds __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 6801da177e4SLinus Torvalds }; 6811da177e4SLinus Torvalds 6821da177e4SLinus Torvalds /* ----- HCI requests ----- */ 6831da177e4SLinus Torvalds #define HCI_REQ_DONE 0 6841da177e4SLinus Torvalds #define HCI_REQ_PEND 1 6851da177e4SLinus Torvalds #define HCI_REQ_CANCELED 2 6861da177e4SLinus Torvalds 687a6a67efdSThomas Gleixner #define hci_req_lock(d) mutex_lock(&d->req_lock) 688a6a67efdSThomas Gleixner #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 6891da177e4SLinus Torvalds 6901da177e4SLinus Torvalds void hci_req_complete(struct hci_dev *hdev, int result); 6911da177e4SLinus Torvalds 6921da177e4SLinus Torvalds #endif /* __HCI_CORE_H */ 693