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 28a6b7a407SAlexey Dobriyan #include <linux/interrupt.h> 291da177e4SLinus Torvalds #include <net/bluetooth/hci.h> 301da177e4SLinus Torvalds 315e59b791SLuiz Augusto von Dentz /* HCI priority */ 325e59b791SLuiz Augusto von Dentz #define HCI_PRIO_MAX 7 335e59b791SLuiz Augusto von Dentz 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 { 47561aafbcSJohan Hedberg struct list_head all; /* inq_cache.all */ 48561aafbcSJohan Hedberg struct list_head list; /* unknown or resolve */ 49561aafbcSJohan Hedberg enum { 50561aafbcSJohan Hedberg NAME_NOT_KNOWN, 51561aafbcSJohan Hedberg NAME_NEEDED, 52561aafbcSJohan Hedberg NAME_PENDING, 53561aafbcSJohan Hedberg NAME_KNOWN, 54561aafbcSJohan Hedberg } name_state; 551da177e4SLinus Torvalds __u32 timestamp; 561da177e4SLinus Torvalds struct inquiry_data data; 571da177e4SLinus Torvalds }; 581da177e4SLinus Torvalds 5930883512SJohan Hedberg struct discovery_state { 60ff9ef578SJohan Hedberg enum { 61ff9ef578SJohan Hedberg DISCOVERY_STOPPED, 62ff9ef578SJohan Hedberg DISCOVERY_STARTING, 6330dc78e1SJohan Hedberg DISCOVERY_INQUIRY, 6430dc78e1SJohan Hedberg DISCOVERY_RESOLVING, 65ff9ef578SJohan Hedberg DISCOVERY_STOPPING, 66ff9ef578SJohan Hedberg } state; 67561aafbcSJohan Hedberg struct list_head all; /* All devices found during inquiry */ 68561aafbcSJohan Hedberg struct list_head unknown; /* Name state not known */ 69561aafbcSJohan Hedberg struct list_head resolve; /* Name needs to be resolved */ 701da177e4SLinus Torvalds __u32 timestamp; 711da177e4SLinus Torvalds }; 721da177e4SLinus Torvalds 731da177e4SLinus Torvalds struct hci_conn_hash { 741da177e4SLinus Torvalds struct list_head list; 751da177e4SLinus Torvalds unsigned int acl_num; 761da177e4SLinus Torvalds unsigned int sco_num; 77fcd89c09SVille Tervo unsigned int le_num; 781da177e4SLinus Torvalds }; 791da177e4SLinus Torvalds 80f0358568SJohan Hedberg struct bdaddr_list { 81f0358568SJohan Hedberg struct list_head list; 82f0358568SJohan Hedberg bdaddr_t bdaddr; 83f0358568SJohan Hedberg }; 842aeb9a1aSJohan Hedberg 852aeb9a1aSJohan Hedberg struct bt_uuid { 862aeb9a1aSJohan Hedberg struct list_head list; 872aeb9a1aSJohan Hedberg u8 uuid[16]; 881aff6f09SJohan Hedberg u8 svc_hint; 892aeb9a1aSJohan Hedberg }; 902aeb9a1aSJohan Hedberg 9134918cd7SVinicius Costa Gomes struct key_master_id { 9234918cd7SVinicius Costa Gomes __le16 ediv; 9334918cd7SVinicius Costa Gomes u8 rand[8]; 9434918cd7SVinicius Costa Gomes } __packed; 9534918cd7SVinicius Costa Gomes 9634918cd7SVinicius Costa Gomes struct link_key_data { 9734918cd7SVinicius Costa Gomes bdaddr_t bdaddr; 9834918cd7SVinicius Costa Gomes u8 type; 9934918cd7SVinicius Costa Gomes u8 val[16]; 10034918cd7SVinicius Costa Gomes u8 pin_len; 10134918cd7SVinicius Costa Gomes u8 dlen; 10234918cd7SVinicius Costa Gomes u8 data[0]; 10334918cd7SVinicius Costa Gomes } __packed; 10434918cd7SVinicius Costa Gomes 10555ed8ca1SJohan Hedberg struct link_key { 10655ed8ca1SJohan Hedberg struct list_head list; 10755ed8ca1SJohan Hedberg bdaddr_t bdaddr; 10855ed8ca1SJohan Hedberg u8 type; 10955ed8ca1SJohan Hedberg u8 val[16]; 11055ed8ca1SJohan Hedberg u8 pin_len; 11134918cd7SVinicius Costa Gomes u8 dlen; 11234918cd7SVinicius Costa Gomes u8 data[0]; 11355ed8ca1SJohan Hedberg }; 11455ed8ca1SJohan Hedberg 1152763eda6SSzymon Janc struct oob_data { 1162763eda6SSzymon Janc struct list_head list; 1172763eda6SSzymon Janc bdaddr_t bdaddr; 1182763eda6SSzymon Janc u8 hash[16]; 1192763eda6SSzymon Janc u8 randomizer[16]; 1202763eda6SSzymon Janc }; 1212763eda6SSzymon Janc 12276c8686fSAndre Guedes struct adv_entry { 12376c8686fSAndre Guedes struct list_head list; 12476c8686fSAndre Guedes bdaddr_t bdaddr; 12576c8686fSAndre Guedes u8 bdaddr_type; 12676c8686fSAndre Guedes }; 12776c8686fSAndre Guedes 128cd4c5391SSuraj Sumangala #define NUM_REASSEMBLY 4 1291da177e4SLinus Torvalds struct hci_dev { 1301da177e4SLinus Torvalds struct list_head list; 13109fd0de5SGustavo F. Padovan struct mutex lock; 1321da177e4SLinus Torvalds 1331da177e4SLinus Torvalds char name[8]; 1341da177e4SLinus Torvalds unsigned long flags; 1351da177e4SLinus Torvalds __u16 id; 136c13854ceSMarcel Holtmann __u8 bus; 137943da25dSMarcel Holtmann __u8 dev_type; 1381da177e4SLinus Torvalds bdaddr_t bdaddr; 1391f6c6378SJohan Hedberg __u8 dev_name[HCI_MAX_NAME_LENGTH]; 14080a1e1dbSJohan Hedberg __u8 eir[HCI_MAX_EIR_LENGTH]; 141a9de9248SMarcel Holtmann __u8 dev_class[3]; 1421aff6f09SJohan Hedberg __u8 major_class; 1431aff6f09SJohan Hedberg __u8 minor_class; 1441da177e4SLinus Torvalds __u8 features[8]; 14559e29406SAndre Guedes __u8 host_features[8]; 146a9de9248SMarcel Holtmann __u8 commands[64]; 1471143e5a6SMarcel Holtmann __u8 hci_ver; 1481143e5a6SMarcel Holtmann __u16 hci_rev; 149d5859e22SJohan Hedberg __u8 lmp_ver; 1501143e5a6SMarcel Holtmann __u16 manufacturer; 151d5859e22SJohan Hedberg __le16 lmp_subver; 1521da177e4SLinus Torvalds __u16 voice_setting; 15317fa4b9dSJohan Hedberg __u8 io_capability; 1541da177e4SLinus Torvalds 1551da177e4SLinus Torvalds __u16 pkt_type; 1565b7f9909SMarcel Holtmann __u16 esco_type; 1571da177e4SLinus Torvalds __u16 link_policy; 1581da177e4SLinus Torvalds __u16 link_mode; 1591da177e4SLinus Torvalds 16004837f64SMarcel Holtmann __u32 idle_timeout; 16104837f64SMarcel Holtmann __u16 sniff_min_interval; 16204837f64SMarcel Holtmann __u16 sniff_max_interval; 16304837f64SMarcel Holtmann 164928abaa7SAndrei Emeltchenko __u8 amp_status; 165928abaa7SAndrei Emeltchenko __u32 amp_total_bw; 166928abaa7SAndrei Emeltchenko __u32 amp_max_bw; 167928abaa7SAndrei Emeltchenko __u32 amp_min_latency; 168928abaa7SAndrei Emeltchenko __u32 amp_max_pdu; 169928abaa7SAndrei Emeltchenko __u8 amp_type; 170928abaa7SAndrei Emeltchenko __u16 amp_pal_cap; 171928abaa7SAndrei Emeltchenko __u16 amp_assoc_size; 172928abaa7SAndrei Emeltchenko __u32 amp_max_flush_to; 173928abaa7SAndrei Emeltchenko __u32 amp_be_flush_to; 174928abaa7SAndrei Emeltchenko 1751e89cffbSAndrei Emeltchenko __u8 flow_ctl_mode; 1761e89cffbSAndrei Emeltchenko 1779f61656aSJohan Hedberg unsigned int auto_accept_delay; 1789f61656aSJohan Hedberg 1791da177e4SLinus Torvalds unsigned long quirks; 1801da177e4SLinus Torvalds 1811da177e4SLinus Torvalds atomic_t cmd_cnt; 1821da177e4SLinus Torvalds unsigned int acl_cnt; 1831da177e4SLinus Torvalds unsigned int sco_cnt; 1846ed58ec5SVille Tervo unsigned int le_cnt; 1851da177e4SLinus Torvalds 1861da177e4SLinus Torvalds unsigned int acl_mtu; 1871da177e4SLinus Torvalds unsigned int sco_mtu; 1886ed58ec5SVille Tervo unsigned int le_mtu; 1891da177e4SLinus Torvalds unsigned int acl_pkts; 1901da177e4SLinus Torvalds unsigned int sco_pkts; 1916ed58ec5SVille Tervo unsigned int le_pkts; 1921da177e4SLinus Torvalds 193350ee4cfSAndrei Emeltchenko __u16 block_len; 194350ee4cfSAndrei Emeltchenko __u16 block_mtu; 195350ee4cfSAndrei Emeltchenko __u16 num_blocks; 196350ee4cfSAndrei Emeltchenko __u16 block_cnt; 197350ee4cfSAndrei Emeltchenko 1981da177e4SLinus Torvalds unsigned long acl_last_tx; 1991da177e4SLinus Torvalds unsigned long sco_last_tx; 2006ed58ec5SVille Tervo unsigned long le_last_tx; 2011da177e4SLinus Torvalds 202f48fd9c8SMarcel Holtmann struct workqueue_struct *workqueue; 203f48fd9c8SMarcel Holtmann 204ab81cbf9SJohan Hedberg struct work_struct power_on; 2053243553fSJohan Hedberg struct delayed_work power_off; 206ab81cbf9SJohan Hedberg 20716ab91abSJohan Hedberg __u16 discov_timeout; 20816ab91abSJohan Hedberg struct delayed_work discov_off; 20916ab91abSJohan Hedberg 2107d78525dSJohan Hedberg struct delayed_work service_cache; 2117d78525dSJohan Hedberg 2126bd32326SVille Tervo struct timer_list cmd_timer; 213b78752ccSMarcel Holtmann 214b78752ccSMarcel Holtmann struct work_struct rx_work; 215c347b765SGustavo F. Padovan struct work_struct cmd_work; 2163eff45eaSGustavo F. Padovan struct work_struct tx_work; 2171da177e4SLinus Torvalds 2181da177e4SLinus Torvalds struct sk_buff_head rx_q; 2191da177e4SLinus Torvalds struct sk_buff_head raw_q; 2201da177e4SLinus Torvalds struct sk_buff_head cmd_q; 2211da177e4SLinus Torvalds 2221da177e4SLinus Torvalds struct sk_buff *sent_cmd; 223cd4c5391SSuraj Sumangala struct sk_buff *reassembly[NUM_REASSEMBLY]; 2241da177e4SLinus Torvalds 225a6a67efdSThomas Gleixner struct mutex req_lock; 2261da177e4SLinus Torvalds wait_queue_head_t req_wait_q; 2271da177e4SLinus Torvalds __u32 req_status; 2281da177e4SLinus Torvalds __u32 req_result; 229a5040efaSJohan Hedberg 230a5040efaSJohan Hedberg __u16 init_last_cmd; 2311da177e4SLinus Torvalds 2322e58ef3eSJohan Hedberg struct list_head mgmt_pending; 2332e58ef3eSJohan Hedberg 23430883512SJohan Hedberg struct discovery_state discovery; 2351da177e4SLinus Torvalds struct hci_conn_hash conn_hash; 236ea4bd8baSDavid Miller struct list_head blacklist; 2371da177e4SLinus Torvalds 2382aeb9a1aSJohan Hedberg struct list_head uuids; 2392aeb9a1aSJohan Hedberg 24055ed8ca1SJohan Hedberg struct list_head link_keys; 24155ed8ca1SJohan Hedberg 2422763eda6SSzymon Janc struct list_head remote_oob_data; 2432763eda6SSzymon Janc 24476c8686fSAndre Guedes struct list_head adv_entries; 245db323f2fSGustavo F. Padovan struct delayed_work adv_work; 24676c8686fSAndre Guedes 2471da177e4SLinus Torvalds struct hci_dev_stats stat; 2481da177e4SLinus Torvalds 2491da177e4SLinus Torvalds struct sk_buff_head driver_init; 2501da177e4SLinus Torvalds 2511da177e4SLinus Torvalds void *driver_data; 2521da177e4SLinus Torvalds void *core_data; 2531da177e4SLinus Torvalds 2541da177e4SLinus Torvalds atomic_t promisc; 2551da177e4SLinus Torvalds 256ca325f69SMarcel Holtmann struct dentry *debugfs; 257ca325f69SMarcel Holtmann 258a91f2e39SMarcel Holtmann struct device *parent; 259a91f2e39SMarcel Holtmann struct device dev; 2601da177e4SLinus Torvalds 261611b30f7SMarcel Holtmann struct rfkill *rfkill; 262611b30f7SMarcel Holtmann 263d23264a8SAndre Guedes unsigned long dev_flags; 264d23264a8SAndre Guedes 2651da177e4SLinus Torvalds int (*open)(struct hci_dev *hdev); 2661da177e4SLinus Torvalds int (*close)(struct hci_dev *hdev); 2671da177e4SLinus Torvalds int (*flush)(struct hci_dev *hdev); 2681da177e4SLinus Torvalds int (*send)(struct sk_buff *skb); 2691da177e4SLinus Torvalds void (*notify)(struct hci_dev *hdev, unsigned int evt); 2701da177e4SLinus Torvalds int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); 2711da177e4SLinus Torvalds }; 2721da177e4SLinus Torvalds 2731da177e4SLinus Torvalds struct hci_conn { 2741da177e4SLinus Torvalds struct list_head list; 2751da177e4SLinus Torvalds 2761da177e4SLinus Torvalds atomic_t refcnt; 2771da177e4SLinus Torvalds 2781da177e4SLinus Torvalds bdaddr_t dst; 27929b7988aSAndre Guedes __u8 dst_type; 2801da177e4SLinus Torvalds __u16 handle; 2811da177e4SLinus Torvalds __u16 state; 28204837f64SMarcel Holtmann __u8 mode; 2831da177e4SLinus Torvalds __u8 type; 284a0c808b3SJohan Hedberg bool out; 2854c67bc74SMarcel Holtmann __u8 attempt; 2861da177e4SLinus Torvalds __u8 dev_class[3]; 28704837f64SMarcel Holtmann __u8 features[8]; 28804837f64SMarcel Holtmann __u16 interval; 289a8746417SMarcel Holtmann __u16 pkt_type; 29004837f64SMarcel Holtmann __u16 link_policy; 2911da177e4SLinus Torvalds __u32 link_mode; 29213d39315SWaldemar Rymarkiewicz __u8 key_type; 29340be492fSMarcel Holtmann __u8 auth_type; 2948c1b2355SMarcel Holtmann __u8 sec_level; 295765c2a96SJohan Hedberg __u8 pending_sec_level; 296980e1a53SJohan Hedberg __u8 pin_length; 297726b4ffcSVinicius Costa Gomes __u8 enc_key_size; 29817fa4b9dSJohan Hedberg __u8 io_capability; 299052b30b0SMarcel Holtmann __u16 disc_timeout; 30051a8efd7SJohan Hedberg unsigned long flags; 3011da177e4SLinus Torvalds 30203b555e1SJohan Hedberg __u8 remote_cap; 30303b555e1SJohan Hedberg __u8 remote_auth; 30403b555e1SJohan Hedberg 3051da177e4SLinus Torvalds unsigned int sent; 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds struct sk_buff_head data_q; 3082c33c06aSGustavo F. Padovan struct list_head chan_list; 3091da177e4SLinus Torvalds 31019c40e3bSGustavo F. Padovan struct delayed_work disc_work; 31104837f64SMarcel Holtmann struct timer_list idle_timer; 3129f61656aSJohan Hedberg struct timer_list auto_accept_timer; 3131da177e4SLinus Torvalds 314b219e3acSMarcel Holtmann struct device dev; 3159eba32b8SMarcel Holtmann atomic_t devref; 316b219e3acSMarcel Holtmann 3171da177e4SLinus Torvalds struct hci_dev *hdev; 3181da177e4SLinus Torvalds void *l2cap_data; 3191da177e4SLinus Torvalds void *sco_data; 3202b64d153SBrian Gix void *smp_conn; 3211da177e4SLinus Torvalds 3221da177e4SLinus Torvalds struct hci_conn *link; 323e9a416b5SJohan Hedberg 324e9a416b5SJohan Hedberg void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 325e9a416b5SJohan Hedberg void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 326e9a416b5SJohan Hedberg void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 3271da177e4SLinus Torvalds }; 3281da177e4SLinus Torvalds 32973d80debSLuiz Augusto von Dentz struct hci_chan { 33073d80debSLuiz Augusto von Dentz struct list_head list; 33173d80debSLuiz Augusto von Dentz 33273d80debSLuiz Augusto von Dentz struct hci_conn *conn; 33373d80debSLuiz Augusto von Dentz struct sk_buff_head data_q; 33473d80debSLuiz Augusto von Dentz unsigned int sent; 33573d80debSLuiz Augusto von Dentz }; 33673d80debSLuiz Augusto von Dentz 3371da177e4SLinus Torvalds extern struct list_head hci_dev_list; 3381da177e4SLinus Torvalds extern struct list_head hci_cb_list; 3391da177e4SLinus Torvalds extern rwlock_t hci_dev_list_lock; 3401da177e4SLinus Torvalds extern rwlock_t hci_cb_list_lock; 3411da177e4SLinus Torvalds 342686ebf28SUlisses Furquim /* ----- HCI interface to upper protocols ----- */ 343686ebf28SUlisses Furquim extern int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 344686ebf28SUlisses Furquim extern int l2cap_connect_cfm(struct hci_conn *hcon, u8 status); 345686ebf28SUlisses Furquim extern int l2cap_disconn_ind(struct hci_conn *hcon); 346686ebf28SUlisses Furquim extern int l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); 347686ebf28SUlisses Furquim extern int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); 348686ebf28SUlisses Furquim extern int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 349686ebf28SUlisses Furquim 350686ebf28SUlisses Furquim extern int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 351686ebf28SUlisses Furquim extern int sco_connect_cfm(struct hci_conn *hcon, __u8 status); 352686ebf28SUlisses Furquim extern int sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); 353686ebf28SUlisses Furquim extern int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 354686ebf28SUlisses Furquim 3551da177e4SLinus Torvalds /* ----- Inquiry cache ----- */ 35670f23020SAndrei Emeltchenko #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 35770f23020SAndrei Emeltchenko #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 3581da177e4SLinus Torvalds 35930883512SJohan Hedberg static inline void discovery_init(struct hci_dev *hdev) 3601da177e4SLinus Torvalds { 361ff9ef578SJohan Hedberg hdev->discovery.state = DISCOVERY_STOPPED; 36230883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.all); 36330883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.unknown); 36430883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.resolve); 3651da177e4SLinus Torvalds } 3661da177e4SLinus Torvalds 36730dc78e1SJohan Hedberg bool hci_discovery_active(struct hci_dev *hdev); 36830dc78e1SJohan Hedberg 369ff9ef578SJohan Hedberg void hci_discovery_set_state(struct hci_dev *hdev, int state); 370ff9ef578SJohan Hedberg 3711da177e4SLinus Torvalds static inline int inquiry_cache_empty(struct hci_dev *hdev) 3721da177e4SLinus Torvalds { 37330883512SJohan Hedberg return list_empty(&hdev->discovery.all); 3741da177e4SLinus Torvalds } 3751da177e4SLinus Torvalds 3761da177e4SLinus Torvalds static inline long inquiry_cache_age(struct hci_dev *hdev) 3771da177e4SLinus Torvalds { 37830883512SJohan Hedberg struct discovery_state *c = &hdev->discovery; 3791da177e4SLinus Torvalds return jiffies - c->timestamp; 3801da177e4SLinus Torvalds } 3811da177e4SLinus Torvalds 3821da177e4SLinus Torvalds static inline long inquiry_entry_age(struct inquiry_entry *e) 3831da177e4SLinus Torvalds { 3841da177e4SLinus Torvalds return jiffies - e->timestamp; 3851da177e4SLinus Torvalds } 3861da177e4SLinus Torvalds 3875a9d0a3fSWaldemar Rymarkiewicz struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 3885a9d0a3fSWaldemar Rymarkiewicz bdaddr_t *bdaddr); 389561aafbcSJohan Hedberg struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 390561aafbcSJohan Hedberg bdaddr_t *bdaddr); 39130dc78e1SJohan Hedberg struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 39230dc78e1SJohan Hedberg bdaddr_t *bdaddr, 39330dc78e1SJohan Hedberg int state); 394a3d4e20aSJohan Hedberg void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 395a3d4e20aSJohan Hedberg struct inquiry_entry *ie); 3963175405bSJohan Hedberg bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 397561aafbcSJohan Hedberg bool name_known); 3981da177e4SLinus Torvalds 3991da177e4SLinus Torvalds /* ----- HCI Connections ----- */ 4001da177e4SLinus Torvalds enum { 4011da177e4SLinus Torvalds HCI_CONN_AUTH_PEND, 40219f8def0SWaldemar Rymarkiewicz HCI_CONN_REAUTH_PEND, 4031da177e4SLinus Torvalds HCI_CONN_ENCRYPT_PEND, 40404837f64SMarcel Holtmann HCI_CONN_RSWITCH_PEND, 40504837f64SMarcel Holtmann HCI_CONN_MODE_CHANGE_PEND, 406e73439d8SMarcel Holtmann HCI_CONN_SCO_SETUP_PEND, 407d26a2345SVinicius Costa Gomes HCI_CONN_LE_SMP_PEND, 408b644ba33SJohan Hedberg HCI_CONN_MGMT_CONNECTED, 40958a681efSJohan Hedberg HCI_CONN_SSP_ENABLED, 41058a681efSJohan Hedberg HCI_CONN_POWER_SAVE, 41158a681efSJohan Hedberg HCI_CONN_REMOTE_OOB, 4121da177e4SLinus Torvalds }; 4131da177e4SLinus Torvalds 414aa64a8b5SJohan Hedberg static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 415aa64a8b5SJohan Hedberg { 416aa64a8b5SJohan Hedberg struct hci_dev *hdev = conn->hdev; 417aa64a8b5SJohan Hedberg return (test_bit(HCI_SSP_ENABLED, &hdev->flags) && 418aa64a8b5SJohan Hedberg test_bit(HCI_CONN_SSP_ENABLED, &conn->flags)); 419aa64a8b5SJohan Hedberg } 420aa64a8b5SJohan Hedberg 4211da177e4SLinus Torvalds static inline void hci_conn_hash_init(struct hci_dev *hdev) 4221da177e4SLinus Torvalds { 4231da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 4241da177e4SLinus Torvalds INIT_LIST_HEAD(&h->list); 4251da177e4SLinus Torvalds h->acl_num = 0; 4261da177e4SLinus Torvalds h->sco_num = 0; 427dc8ed672SGustavo F. Padovan h->le_num = 0; 4281da177e4SLinus Torvalds } 4291da177e4SLinus Torvalds 4301da177e4SLinus Torvalds static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 4311da177e4SLinus Torvalds { 4321da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 433bf4c6325SGustavo F. Padovan list_add_rcu(&c->list, &h->list); 434fcd89c09SVille Tervo switch (c->type) { 435fcd89c09SVille Tervo case ACL_LINK: 4361da177e4SLinus Torvalds h->acl_num++; 437fcd89c09SVille Tervo break; 438fcd89c09SVille Tervo case LE_LINK: 439fcd89c09SVille Tervo h->le_num++; 440fcd89c09SVille Tervo break; 441fcd89c09SVille Tervo case SCO_LINK: 442fcd89c09SVille Tervo case ESCO_LINK: 4431da177e4SLinus Torvalds h->sco_num++; 444fcd89c09SVille Tervo break; 445fcd89c09SVille Tervo } 4461da177e4SLinus Torvalds } 4471da177e4SLinus Torvalds 4481da177e4SLinus Torvalds static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 4491da177e4SLinus Torvalds { 4501da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 451bf4c6325SGustavo F. Padovan 452bf4c6325SGustavo F. Padovan list_del_rcu(&c->list); 453bf4c6325SGustavo F. Padovan synchronize_rcu(); 454bf4c6325SGustavo F. Padovan 455fcd89c09SVille Tervo switch (c->type) { 456fcd89c09SVille Tervo case ACL_LINK: 4571da177e4SLinus Torvalds h->acl_num--; 458fcd89c09SVille Tervo break; 459fcd89c09SVille Tervo case LE_LINK: 460fcd89c09SVille Tervo h->le_num--; 461fcd89c09SVille Tervo break; 462fcd89c09SVille Tervo case SCO_LINK: 463fcd89c09SVille Tervo case ESCO_LINK: 4641da177e4SLinus Torvalds h->sco_num--; 465fcd89c09SVille Tervo break; 466fcd89c09SVille Tervo } 4671da177e4SLinus Torvalds } 4681da177e4SLinus Torvalds 46952087a79SLuiz Augusto von Dentz static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 47052087a79SLuiz Augusto von Dentz { 47152087a79SLuiz Augusto von Dentz struct hci_conn_hash *h = &hdev->conn_hash; 47252087a79SLuiz Augusto von Dentz switch (type) { 47352087a79SLuiz Augusto von Dentz case ACL_LINK: 47452087a79SLuiz Augusto von Dentz return h->acl_num; 47552087a79SLuiz Augusto von Dentz case LE_LINK: 47652087a79SLuiz Augusto von Dentz return h->le_num; 47752087a79SLuiz Augusto von Dentz case SCO_LINK: 47852087a79SLuiz Augusto von Dentz case ESCO_LINK: 47952087a79SLuiz Augusto von Dentz return h->sco_num; 48052087a79SLuiz Augusto von Dentz default: 48152087a79SLuiz Augusto von Dentz return 0; 48252087a79SLuiz Augusto von Dentz } 48352087a79SLuiz Augusto von Dentz } 48452087a79SLuiz Augusto von Dentz 4851da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 4861da177e4SLinus Torvalds __u16 handle) 4871da177e4SLinus Torvalds { 4881da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 4891da177e4SLinus Torvalds struct hci_conn *c; 4901da177e4SLinus Torvalds 491bf4c6325SGustavo F. Padovan rcu_read_lock(); 492bf4c6325SGustavo F. Padovan 493bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 494bf4c6325SGustavo F. Padovan if (c->handle == handle) { 495bf4c6325SGustavo F. Padovan rcu_read_unlock(); 4961da177e4SLinus Torvalds return c; 4971da177e4SLinus Torvalds } 498bf4c6325SGustavo F. Padovan } 499bf4c6325SGustavo F. Padovan rcu_read_unlock(); 500bf4c6325SGustavo F. Padovan 5011da177e4SLinus Torvalds return NULL; 5021da177e4SLinus Torvalds } 5031da177e4SLinus Torvalds 5041da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 5051da177e4SLinus Torvalds __u8 type, bdaddr_t *ba) 5061da177e4SLinus Torvalds { 5071da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 5081da177e4SLinus Torvalds struct hci_conn *c; 5091da177e4SLinus Torvalds 510bf4c6325SGustavo F. Padovan rcu_read_lock(); 511bf4c6325SGustavo F. Padovan 512bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 513bf4c6325SGustavo F. Padovan if (c->type == type && !bacmp(&c->dst, ba)) { 514bf4c6325SGustavo F. Padovan rcu_read_unlock(); 5151da177e4SLinus Torvalds return c; 5161da177e4SLinus Torvalds } 517bf4c6325SGustavo F. Padovan } 518bf4c6325SGustavo F. Padovan 519bf4c6325SGustavo F. Padovan rcu_read_unlock(); 520bf4c6325SGustavo F. Padovan 5211da177e4SLinus Torvalds return NULL; 5221da177e4SLinus Torvalds } 5231da177e4SLinus Torvalds 5244c67bc74SMarcel Holtmann static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 5254c67bc74SMarcel Holtmann __u8 type, __u16 state) 5264c67bc74SMarcel Holtmann { 5274c67bc74SMarcel Holtmann struct hci_conn_hash *h = &hdev->conn_hash; 5284c67bc74SMarcel Holtmann struct hci_conn *c; 5294c67bc74SMarcel Holtmann 530bf4c6325SGustavo F. Padovan rcu_read_lock(); 531bf4c6325SGustavo F. Padovan 532bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 533bf4c6325SGustavo F. Padovan if (c->type == type && c->state == state) { 534bf4c6325SGustavo F. Padovan rcu_read_unlock(); 5354c67bc74SMarcel Holtmann return c; 5364c67bc74SMarcel Holtmann } 537bf4c6325SGustavo F. Padovan } 538bf4c6325SGustavo F. Padovan 539bf4c6325SGustavo F. Padovan rcu_read_unlock(); 540bf4c6325SGustavo F. Padovan 5414c67bc74SMarcel Holtmann return NULL; 5424c67bc74SMarcel Holtmann } 5434c67bc74SMarcel Holtmann 5444c67bc74SMarcel Holtmann void hci_acl_connect(struct hci_conn *conn); 5451da177e4SLinus Torvalds void hci_acl_disconn(struct hci_conn *conn, __u8 reason); 5461da177e4SLinus Torvalds void hci_add_sco(struct hci_conn *conn, __u16 handle); 547b6a0dc82SMarcel Holtmann void hci_setup_sync(struct hci_conn *conn, __u16 handle); 548e73439d8SMarcel Holtmann void hci_sco_setup(struct hci_conn *conn, __u8 status); 5491da177e4SLinus Torvalds 5501da177e4SLinus Torvalds struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 5511da177e4SLinus Torvalds int hci_conn_del(struct hci_conn *conn); 5521da177e4SLinus Torvalds void hci_conn_hash_flush(struct hci_dev *hdev); 553a9de9248SMarcel Holtmann void hci_conn_check_pending(struct hci_dev *hdev); 5541da177e4SLinus Torvalds 55573d80debSLuiz Augusto von Dentz struct hci_chan *hci_chan_create(struct hci_conn *conn); 55673d80debSLuiz Augusto von Dentz int hci_chan_del(struct hci_chan *chan); 5572c33c06aSGustavo F. Padovan void hci_chan_list_flush(struct hci_conn *conn); 55873d80debSLuiz Augusto von Dentz 5595a9d0a3fSWaldemar Rymarkiewicz struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, 5605a9d0a3fSWaldemar Rymarkiewicz __u8 sec_level, __u8 auth_type); 561e7c29cb1SMarcel Holtmann int hci_conn_check_link_mode(struct hci_conn *conn); 562b3b1b061SWaldemar Rymarkiewicz int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 5630684e5f9SMarcel Holtmann int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 5641da177e4SLinus Torvalds int hci_conn_change_link_key(struct hci_conn *conn); 5658c1b2355SMarcel Holtmann int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 5661da177e4SLinus Torvalds 56714b12d0bSJaikumar Ganesh void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 5681da177e4SLinus Torvalds 5699eba32b8SMarcel Holtmann void hci_conn_hold_device(struct hci_conn *conn); 5709eba32b8SMarcel Holtmann void hci_conn_put_device(struct hci_conn *conn); 5719eba32b8SMarcel Holtmann 5721da177e4SLinus Torvalds static inline void hci_conn_hold(struct hci_conn *conn) 5731da177e4SLinus Torvalds { 5741da177e4SLinus Torvalds atomic_inc(&conn->refcnt); 5752f304d1eSAndre Guedes cancel_delayed_work(&conn->disc_work); 5761da177e4SLinus Torvalds } 5771da177e4SLinus Torvalds 5781da177e4SLinus Torvalds static inline void hci_conn_put(struct hci_conn *conn) 5791da177e4SLinus Torvalds { 5801da177e4SLinus Torvalds if (atomic_dec_and_test(&conn->refcnt)) { 58104837f64SMarcel Holtmann unsigned long timeo; 582454d48ffSVinicius Costa Gomes if (conn->type == ACL_LINK || conn->type == LE_LINK) { 5836ac59344SMarcel Holtmann del_timer(&conn->idle_timer); 5846ac59344SMarcel Holtmann if (conn->state == BT_CONNECTED) { 585052b30b0SMarcel Holtmann timeo = msecs_to_jiffies(conn->disc_timeout); 58604837f64SMarcel Holtmann if (!conn->out) 587052b30b0SMarcel Holtmann timeo *= 2; 5885a9d0a3fSWaldemar Rymarkiewicz } else { 5896ac59344SMarcel Holtmann timeo = msecs_to_jiffies(10); 5905a9d0a3fSWaldemar Rymarkiewicz } 5915a9d0a3fSWaldemar Rymarkiewicz } else { 59204837f64SMarcel Holtmann timeo = msecs_to_jiffies(10); 5935a9d0a3fSWaldemar Rymarkiewicz } 5942f304d1eSAndre Guedes cancel_delayed_work(&conn->disc_work); 59519c40e3bSGustavo F. Padovan queue_delayed_work(conn->hdev->workqueue, 5961931782bSVinicius Costa Gomes &conn->disc_work, timeo); 5971da177e4SLinus Torvalds } 5981da177e4SLinus Torvalds } 5991da177e4SLinus Torvalds 6001da177e4SLinus Torvalds /* ----- HCI Devices ----- */ 601dc946bd8SDavid Herrmann static inline void hci_dev_put(struct hci_dev *d) 6021da177e4SLinus Torvalds { 6034c724c71SDavid Herrmann put_device(&d->dev); 604010666a1SDavid Herrmann } 6051da177e4SLinus Torvalds 606dc946bd8SDavid Herrmann static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 6071da177e4SLinus Torvalds { 6084c724c71SDavid Herrmann get_device(&d->dev); 6091da177e4SLinus Torvalds return d; 6101da177e4SLinus Torvalds } 6111da177e4SLinus Torvalds 61209fd0de5SGustavo F. Padovan #define hci_dev_lock(d) mutex_lock(&d->lock) 61309fd0de5SGustavo F. Padovan #define hci_dev_unlock(d) mutex_unlock(&d->lock) 6141da177e4SLinus Torvalds 6151da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index); 6161da177e4SLinus Torvalds struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); 6171da177e4SLinus Torvalds 6181da177e4SLinus Torvalds struct hci_dev *hci_alloc_dev(void); 6191da177e4SLinus Torvalds void hci_free_dev(struct hci_dev *hdev); 6201da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev); 62159735631SDavid Herrmann void hci_unregister_dev(struct hci_dev *hdev); 6221da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev); 6231da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev); 6241da177e4SLinus Torvalds int hci_dev_open(__u16 dev); 6251da177e4SLinus Torvalds int hci_dev_close(__u16 dev); 6261da177e4SLinus Torvalds int hci_dev_reset(__u16 dev); 6271da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev); 6281da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg); 6291da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg); 6301da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg); 6311da177e4SLinus Torvalds int hci_get_conn_list(void __user *arg); 6321da177e4SLinus Torvalds int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 63340be492fSMarcel Holtmann int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 6341da177e4SLinus Torvalds int hci_inquiry(void __user *arg); 6351da177e4SLinus Torvalds 636f0358568SJohan Hedberg struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); 637f0358568SJohan Hedberg int hci_blacklist_clear(struct hci_dev *hdev); 638b2a66aadSAntti Julku int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr); 639b2a66aadSAntti Julku int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr); 640f0358568SJohan Hedberg 6412aeb9a1aSJohan Hedberg int hci_uuids_clear(struct hci_dev *hdev); 6422aeb9a1aSJohan Hedberg 64355ed8ca1SJohan Hedberg int hci_link_keys_clear(struct hci_dev *hdev); 64455ed8ca1SJohan Hedberg struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 645d25e28abSJohan Hedberg int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, 646d25e28abSJohan Hedberg bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); 64775d262c2SVinicius Costa Gomes struct link_key *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8]); 64875d262c2SVinicius Costa Gomes struct link_key *hci_find_link_key_type(struct hci_dev *hdev, 64975d262c2SVinicius Costa Gomes bdaddr_t *bdaddr, u8 type); 65075d262c2SVinicius Costa Gomes int hci_add_ltk(struct hci_dev *hdev, int new_key, bdaddr_t *bdaddr, 651726b4ffcSVinicius Costa Gomes u8 key_size, __le16 ediv, u8 rand[8], u8 ltk[16]); 65255ed8ca1SJohan Hedberg int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 65355ed8ca1SJohan Hedberg 6542763eda6SSzymon Janc int hci_remote_oob_data_clear(struct hci_dev *hdev); 6552763eda6SSzymon Janc struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 6562763eda6SSzymon Janc bdaddr_t *bdaddr); 6572763eda6SSzymon Janc int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 *hash, 6582763eda6SSzymon Janc u8 *randomizer); 6592763eda6SSzymon Janc int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); 6602763eda6SSzymon Janc 66135815085SAndre Guedes #define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */ 66276c8686fSAndre Guedes int hci_adv_entries_clear(struct hci_dev *hdev); 66376c8686fSAndre Guedes struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr); 66476c8686fSAndre Guedes int hci_add_adv_entry(struct hci_dev *hdev, 66576c8686fSAndre Guedes struct hci_ev_le_advertising_info *ev); 66676c8686fSAndre Guedes 667ab81cbf9SJohan Hedberg void hci_del_off_timer(struct hci_dev *hdev); 668ab81cbf9SJohan Hedberg 6691da177e4SLinus Torvalds void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 6701da177e4SLinus Torvalds 67176bca880SMarcel Holtmann int hci_recv_frame(struct sk_buff *skb); 672ef222013SMarcel Holtmann int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 67399811510SSuraj Sumangala int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); 674ef222013SMarcel Holtmann 6750ac7e700SDavid Herrmann void hci_init_sysfs(struct hci_dev *hdev); 676ce242970SDavid Herrmann int hci_add_sysfs(struct hci_dev *hdev); 677ce242970SDavid Herrmann void hci_del_sysfs(struct hci_dev *hdev); 678a67e899cSMarcel Holtmann void hci_conn_init_sysfs(struct hci_conn *conn); 679b219e3acSMarcel Holtmann void hci_conn_add_sysfs(struct hci_conn *conn); 680b219e3acSMarcel Holtmann void hci_conn_del_sysfs(struct hci_conn *conn); 6811da177e4SLinus Torvalds 682a91f2e39SMarcel Holtmann #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev)) 6831da177e4SLinus Torvalds 6841da177e4SLinus Torvalds /* ----- LMP capabilities ----- */ 68504837f64SMarcel Holtmann #define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) 68604837f64SMarcel Holtmann #define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) 68704837f64SMarcel Holtmann #define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) 68804837f64SMarcel Holtmann #define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) 6895b7f9909SMarcel Holtmann #define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) 690769be974SMarcel Holtmann #define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) 691e702112fSAndrei Emeltchenko #define lmp_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH) 6926ed58ec5SVille Tervo #define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE) 6931da177e4SLinus Torvalds 694eead27daSAndre Guedes /* ----- Extended LMP capabilities ----- */ 69559e29406SAndre Guedes #define lmp_host_le_capable(dev) ((dev)->host_features[0] & LMP_HOST_LE) 696eead27daSAndre Guedes 6971da177e4SLinus Torvalds /* ----- HCI protocols ----- */ 6985a9d0a3fSWaldemar Rymarkiewicz static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 6995a9d0a3fSWaldemar Rymarkiewicz __u8 type) 7001da177e4SLinus Torvalds { 701686ebf28SUlisses Furquim switch (type) { 702686ebf28SUlisses Furquim case ACL_LINK: 703686ebf28SUlisses Furquim return l2cap_connect_ind(hdev, bdaddr); 7041da177e4SLinus Torvalds 705686ebf28SUlisses Furquim case SCO_LINK: 706686ebf28SUlisses Furquim case ESCO_LINK: 707686ebf28SUlisses Furquim return sco_connect_ind(hdev, bdaddr); 7081da177e4SLinus Torvalds 709686ebf28SUlisses Furquim default: 710686ebf28SUlisses Furquim BT_ERR("unknown link type %d", type); 711686ebf28SUlisses Furquim return -EINVAL; 712686ebf28SUlisses Furquim } 7131da177e4SLinus Torvalds } 7141da177e4SLinus Torvalds 7151da177e4SLinus Torvalds static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 7161da177e4SLinus Torvalds { 717686ebf28SUlisses Furquim switch (conn->type) { 718686ebf28SUlisses Furquim case ACL_LINK: 719686ebf28SUlisses Furquim case LE_LINK: 720686ebf28SUlisses Furquim l2cap_connect_cfm(conn, status); 721686ebf28SUlisses Furquim break; 7221da177e4SLinus Torvalds 723686ebf28SUlisses Furquim case SCO_LINK: 724686ebf28SUlisses Furquim case ESCO_LINK: 725686ebf28SUlisses Furquim sco_connect_cfm(conn, status); 726686ebf28SUlisses Furquim break; 7271da177e4SLinus Torvalds 728686ebf28SUlisses Furquim default: 729686ebf28SUlisses Furquim BT_ERR("unknown link type %d", conn->type); 730686ebf28SUlisses Furquim break; 731686ebf28SUlisses Furquim } 732e9a416b5SJohan Hedberg 733e9a416b5SJohan Hedberg if (conn->connect_cfm_cb) 734e9a416b5SJohan Hedberg conn->connect_cfm_cb(conn, status); 7351da177e4SLinus Torvalds } 7361da177e4SLinus Torvalds 7372950f21aSMarcel Holtmann static inline int hci_proto_disconn_ind(struct hci_conn *conn) 7382950f21aSMarcel Holtmann { 739686ebf28SUlisses Furquim if (conn->type != ACL_LINK && conn->type != LE_LINK) 740686ebf28SUlisses Furquim return HCI_ERROR_REMOTE_USER_TERM; 7412950f21aSMarcel Holtmann 742686ebf28SUlisses Furquim return l2cap_disconn_ind(conn); 7432950f21aSMarcel Holtmann } 7442950f21aSMarcel Holtmann 7452950f21aSMarcel Holtmann static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 7461da177e4SLinus Torvalds { 747686ebf28SUlisses Furquim switch (conn->type) { 748686ebf28SUlisses Furquim case ACL_LINK: 749686ebf28SUlisses Furquim case LE_LINK: 750686ebf28SUlisses Furquim l2cap_disconn_cfm(conn, reason); 751686ebf28SUlisses Furquim break; 7521da177e4SLinus Torvalds 753686ebf28SUlisses Furquim case SCO_LINK: 754686ebf28SUlisses Furquim case ESCO_LINK: 755686ebf28SUlisses Furquim sco_disconn_cfm(conn, reason); 756686ebf28SUlisses Furquim break; 7571da177e4SLinus Torvalds 758686ebf28SUlisses Furquim default: 759686ebf28SUlisses Furquim BT_ERR("unknown link type %d", conn->type); 760686ebf28SUlisses Furquim break; 761686ebf28SUlisses Furquim } 762e9a416b5SJohan Hedberg 763e9a416b5SJohan Hedberg if (conn->disconn_cfm_cb) 764e9a416b5SJohan Hedberg conn->disconn_cfm_cb(conn, reason); 7651da177e4SLinus Torvalds } 7661da177e4SLinus Torvalds 7671da177e4SLinus Torvalds static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 7681da177e4SLinus Torvalds { 7698c1b2355SMarcel Holtmann __u8 encrypt; 7708c1b2355SMarcel Holtmann 771686ebf28SUlisses Furquim if (conn->type != ACL_LINK && conn->type != LE_LINK) 772686ebf28SUlisses Furquim return; 773686ebf28SUlisses Furquim 77451a8efd7SJohan Hedberg if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 7758c1b2355SMarcel Holtmann return; 7768c1b2355SMarcel Holtmann 7778c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 778686ebf28SUlisses Furquim l2cap_security_cfm(conn, status, encrypt); 779e9a416b5SJohan Hedberg 780e9a416b5SJohan Hedberg if (conn->security_cfm_cb) 781e9a416b5SJohan Hedberg conn->security_cfm_cb(conn, status); 7821da177e4SLinus Torvalds } 7831da177e4SLinus Torvalds 7845a9d0a3fSWaldemar Rymarkiewicz static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, 7855a9d0a3fSWaldemar Rymarkiewicz __u8 encrypt) 7861da177e4SLinus Torvalds { 787686ebf28SUlisses Furquim if (conn->type != ACL_LINK && conn->type != LE_LINK) 788686ebf28SUlisses Furquim return; 7891da177e4SLinus Torvalds 790686ebf28SUlisses Furquim l2cap_security_cfm(conn, status, encrypt); 791e9a416b5SJohan Hedberg 792e9a416b5SJohan Hedberg if (conn->security_cfm_cb) 793e9a416b5SJohan Hedberg conn->security_cfm_cb(conn, status); 7941da177e4SLinus Torvalds } 7951da177e4SLinus Torvalds 7961da177e4SLinus Torvalds /* ----- HCI callbacks ----- */ 7971da177e4SLinus Torvalds struct hci_cb { 7981da177e4SLinus Torvalds struct list_head list; 7991da177e4SLinus Torvalds 8001da177e4SLinus Torvalds char *name; 8011da177e4SLinus Torvalds 8025a9d0a3fSWaldemar Rymarkiewicz void (*security_cfm) (struct hci_conn *conn, __u8 status, 8035a9d0a3fSWaldemar Rymarkiewicz __u8 encrypt); 8041da177e4SLinus Torvalds void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 8051da177e4SLinus Torvalds void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 8061da177e4SLinus Torvalds }; 8071da177e4SLinus Torvalds 8081da177e4SLinus Torvalds static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 8091da177e4SLinus Torvalds { 8101da177e4SLinus Torvalds struct list_head *p; 8118c1b2355SMarcel Holtmann __u8 encrypt; 8121da177e4SLinus Torvalds 8131da177e4SLinus Torvalds hci_proto_auth_cfm(conn, status); 8141da177e4SLinus Torvalds 81551a8efd7SJohan Hedberg if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 8168c1b2355SMarcel Holtmann return; 8178c1b2355SMarcel Holtmann 8188c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 8198c1b2355SMarcel Holtmann 820f20d09d5SGustavo F. Padovan read_lock(&hci_cb_list_lock); 8211da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 8221da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 8238c1b2355SMarcel Holtmann if (cb->security_cfm) 8248c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 8251da177e4SLinus Torvalds } 826f20d09d5SGustavo F. Padovan read_unlock(&hci_cb_list_lock); 8271da177e4SLinus Torvalds } 8281da177e4SLinus Torvalds 8295a9d0a3fSWaldemar Rymarkiewicz static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, 8305a9d0a3fSWaldemar Rymarkiewicz __u8 encrypt) 8311da177e4SLinus Torvalds { 8321da177e4SLinus Torvalds struct list_head *p; 8331da177e4SLinus Torvalds 834435fef20SMarcel Holtmann if (conn->sec_level == BT_SECURITY_SDP) 835435fef20SMarcel Holtmann conn->sec_level = BT_SECURITY_LOW; 836435fef20SMarcel Holtmann 83788167aedSVinicius Costa Gomes if (conn->pending_sec_level > conn->sec_level) 83888167aedSVinicius Costa Gomes conn->sec_level = conn->pending_sec_level; 83988167aedSVinicius Costa Gomes 8409719f8afSMarcel Holtmann hci_proto_encrypt_cfm(conn, status, encrypt); 8411da177e4SLinus Torvalds 842f20d09d5SGustavo F. Padovan read_lock(&hci_cb_list_lock); 8431da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 8441da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 8458c1b2355SMarcel Holtmann if (cb->security_cfm) 8468c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 8471da177e4SLinus Torvalds } 848f20d09d5SGustavo F. Padovan read_unlock(&hci_cb_list_lock); 8491da177e4SLinus Torvalds } 8501da177e4SLinus Torvalds 8511da177e4SLinus Torvalds static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 8521da177e4SLinus Torvalds { 8531da177e4SLinus Torvalds struct list_head *p; 8541da177e4SLinus Torvalds 855f20d09d5SGustavo F. Padovan read_lock(&hci_cb_list_lock); 8561da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 8571da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 8581da177e4SLinus Torvalds if (cb->key_change_cfm) 8591da177e4SLinus Torvalds cb->key_change_cfm(conn, status); 8601da177e4SLinus Torvalds } 861f20d09d5SGustavo F. Padovan read_unlock(&hci_cb_list_lock); 8621da177e4SLinus Torvalds } 8631da177e4SLinus Torvalds 8645a9d0a3fSWaldemar Rymarkiewicz static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 8655a9d0a3fSWaldemar Rymarkiewicz __u8 role) 8661da177e4SLinus Torvalds { 8671da177e4SLinus Torvalds struct list_head *p; 8681da177e4SLinus Torvalds 869f20d09d5SGustavo F. Padovan read_lock(&hci_cb_list_lock); 8701da177e4SLinus Torvalds list_for_each(p, &hci_cb_list) { 8711da177e4SLinus Torvalds struct hci_cb *cb = list_entry(p, struct hci_cb, list); 8721da177e4SLinus Torvalds if (cb->role_switch_cfm) 8731da177e4SLinus Torvalds cb->role_switch_cfm(conn, status, role); 8741da177e4SLinus Torvalds } 875f20d09d5SGustavo F. Padovan read_unlock(&hci_cb_list_lock); 8761da177e4SLinus Torvalds } 8771da177e4SLinus Torvalds 8786759a675SJohan Hedberg static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) 8796759a675SJohan Hedberg { 8806759a675SJohan Hedberg u8 field_len; 8816759a675SJohan Hedberg size_t parsed; 8826759a675SJohan Hedberg 8836759a675SJohan Hedberg for (parsed = 0; parsed < data_len - 1; parsed += field_len) { 8846759a675SJohan Hedberg field_len = data[0]; 8856759a675SJohan Hedberg 8866759a675SJohan Hedberg if (field_len == 0) 8876759a675SJohan Hedberg break; 8886759a675SJohan Hedberg 8896759a675SJohan Hedberg parsed += field_len + 1; 8906759a675SJohan Hedberg 8916759a675SJohan Hedberg if (parsed > data_len) 8926759a675SJohan Hedberg break; 8936759a675SJohan Hedberg 8946759a675SJohan Hedberg if (data[1] == type) 8956759a675SJohan Hedberg return true; 8966759a675SJohan Hedberg 8976759a675SJohan Hedberg data += field_len + 1; 8986759a675SJohan Hedberg } 8996759a675SJohan Hedberg 9006759a675SJohan Hedberg return false; 9016759a675SJohan Hedberg } 9026759a675SJohan Hedberg 9031dc06093SJohan Hedberg static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data, 9041dc06093SJohan Hedberg u8 data_len) 9051dc06093SJohan Hedberg { 9061dc06093SJohan Hedberg eir[eir_len++] = sizeof(type) + data_len; 9071dc06093SJohan Hedberg eir[eir_len++] = type; 9081dc06093SJohan Hedberg memcpy(&eir[eir_len], data, data_len); 9091dc06093SJohan Hedberg eir_len += data_len; 9101dc06093SJohan Hedberg 9111dc06093SJohan Hedberg return eir_len; 9121dc06093SJohan Hedberg } 9131dc06093SJohan Hedberg 9141da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *hcb); 9151da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *hcb); 9161da177e4SLinus Torvalds 9171da177e4SLinus Torvalds int hci_register_notifier(struct notifier_block *nb); 9181da177e4SLinus Torvalds int hci_unregister_notifier(struct notifier_block *nb); 9191da177e4SLinus Torvalds 920a9de9248SMarcel Holtmann int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); 92173d80debSLuiz Augusto von Dentz void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 9220d861d8bSGustavo F. Padovan void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 9231da177e4SLinus Torvalds 924a9de9248SMarcel Holtmann void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 9251da177e4SLinus Torvalds 9261da177e4SLinus Torvalds void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); 9271da177e4SLinus Torvalds 9281da177e4SLinus Torvalds /* ----- HCI Sockets ----- */ 929eec8d2bcSJohan Hedberg void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb, 930eec8d2bcSJohan Hedberg struct sock *skip_sk); 9311da177e4SLinus Torvalds 9320381101fSJohan Hedberg /* Management interface */ 9330381101fSJohan Hedberg int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); 934744cf19eSJohan Hedberg int mgmt_index_added(struct hci_dev *hdev); 935744cf19eSJohan Hedberg int mgmt_index_removed(struct hci_dev *hdev); 936744cf19eSJohan Hedberg int mgmt_powered(struct hci_dev *hdev, u8 powered); 937744cf19eSJohan Hedberg int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); 938744cf19eSJohan Hedberg int mgmt_connectable(struct hci_dev *hdev, u8 connectable); 939744cf19eSJohan Hedberg int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); 940744cf19eSJohan Hedberg int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 941744cf19eSJohan Hedberg u8 persistent); 942afc747a6SJohan Hedberg int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 943b644ba33SJohan Hedberg u8 addr_type, u8 *name, u8 name_len, 944b644ba33SJohan Hedberg u8 *dev_class); 945afc747a6SJohan Hedberg int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 946afc747a6SJohan Hedberg u8 link_type, u8 addr_type); 94737d9ef76SJohan Hedberg int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status); 94848264f06SJohan Hedberg int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 94948264f06SJohan Hedberg u8 addr_type, u8 status); 950744cf19eSJohan Hedberg int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 951744cf19eSJohan Hedberg int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 952c35938b2SSzymon Janc u8 status); 953744cf19eSJohan Hedberg int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 954744cf19eSJohan Hedberg u8 status); 955744cf19eSJohan Hedberg int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 956744cf19eSJohan Hedberg __le32 value, u8 confirm_hint); 957744cf19eSJohan Hedberg int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 958744cf19eSJohan Hedberg u8 status); 959744cf19eSJohan Hedberg int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, 960744cf19eSJohan Hedberg bdaddr_t *bdaddr, u8 status); 961604086b7SBrian Gix int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr); 962604086b7SBrian Gix int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 963604086b7SBrian Gix u8 status); 964604086b7SBrian Gix int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, 965604086b7SBrian Gix bdaddr_t *bdaddr, u8 status); 966744cf19eSJohan Hedberg int mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status); 967744cf19eSJohan Hedberg int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 968744cf19eSJohan Hedberg int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, 969744cf19eSJohan Hedberg u8 *randomizer, u8 status); 97048264f06SJohan Hedberg int mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 971561aafbcSJohan Hedberg u8 addr_type, u8 *dev_class, s8 rssi, 972e319d2e7SJohan Hedberg u8 cfm_name, u8 *eir, u16 eir_len); 973b644ba33SJohan Hedberg int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 974b644ba33SJohan Hedberg u8 addr_type, s8 rssi, u8 *name, u8 name_len); 9757a135109SAndre Guedes int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status); 976e6d465cbSAndre Guedes int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status); 977744cf19eSJohan Hedberg int mgmt_discovering(struct hci_dev *hdev, u8 discovering); 978744cf19eSJohan Hedberg int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr); 979744cf19eSJohan Hedberg int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr); 9800381101fSJohan Hedberg 9811da177e4SLinus Torvalds /* HCI info for socket */ 9821da177e4SLinus Torvalds #define hci_pi(sk) ((struct hci_pinfo *) sk) 9831da177e4SLinus Torvalds 98414c0b608SJohan Hedberg /* HCI socket flags */ 98514c0b608SJohan Hedberg #define HCI_PI_MGMT_INIT 0 98614c0b608SJohan Hedberg 9871da177e4SLinus Torvalds struct hci_pinfo { 9881da177e4SLinus Torvalds struct bt_sock bt; 9891da177e4SLinus Torvalds struct hci_dev *hdev; 9901da177e4SLinus Torvalds struct hci_filter filter; 9911da177e4SLinus Torvalds __u32 cmsg_mask; 992c02178d2SJohan Hedberg unsigned short channel; 99314c0b608SJohan Hedberg unsigned long flags; 9941da177e4SLinus Torvalds }; 9951da177e4SLinus Torvalds 9961da177e4SLinus Torvalds /* HCI security filter */ 9971da177e4SLinus Torvalds #define HCI_SFLT_MAX_OGF 5 9981da177e4SLinus Torvalds 9991da177e4SLinus Torvalds struct hci_sec_filter { 10001da177e4SLinus Torvalds __u32 type_mask; 10011da177e4SLinus Torvalds __u32 event_mask[2]; 10021da177e4SLinus Torvalds __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 10031da177e4SLinus Torvalds }; 10041da177e4SLinus Torvalds 10051da177e4SLinus Torvalds /* ----- HCI requests ----- */ 10061da177e4SLinus Torvalds #define HCI_REQ_DONE 0 10071da177e4SLinus Torvalds #define HCI_REQ_PEND 1 10081da177e4SLinus Torvalds #define HCI_REQ_CANCELED 2 10091da177e4SLinus Torvalds 1010a6a67efdSThomas Gleixner #define hci_req_lock(d) mutex_lock(&d->req_lock) 1011a6a67efdSThomas Gleixner #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 10121da177e4SLinus Torvalds 101323bb5763SJohan Hedberg void hci_req_complete(struct hci_dev *hdev, __u16 cmd, int result); 10141da177e4SLinus Torvalds 10152ce603ebSClaudio Takahasi void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, 10162ce603ebSClaudio Takahasi u16 latency, u16 to_multiplier); 1017a7a595f6SVinicius Costa Gomes void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], 1018a7a595f6SVinicius Costa Gomes __u8 ltk[16]); 1019a7a595f6SVinicius Costa Gomes void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]); 1020a7a595f6SVinicius Costa Gomes void hci_le_ltk_neg_reply(struct hci_conn *conn); 1021a7a595f6SVinicius Costa Gomes 10222519a1fcSAndre Guedes int hci_do_inquiry(struct hci_dev *hdev, u8 length); 1023023d5049SAndre Guedes int hci_cancel_inquiry(struct hci_dev *hdev); 10242519a1fcSAndre Guedes 10251da177e4SLinus Torvalds #endif /* __HCI_CORE_H */ 1026