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 305e59b791SLuiz Augusto von Dentz /* HCI priority */ 315e59b791SLuiz Augusto von Dentz #define HCI_PRIO_MAX 7 325e59b791SLuiz Augusto von Dentz 331da177e4SLinus Torvalds /* HCI Core structures */ 341da177e4SLinus Torvalds struct inquiry_data { 351da177e4SLinus Torvalds bdaddr_t bdaddr; 361da177e4SLinus Torvalds __u8 pscan_rep_mode; 371da177e4SLinus Torvalds __u8 pscan_period_mode; 381da177e4SLinus Torvalds __u8 pscan_mode; 391da177e4SLinus Torvalds __u8 dev_class[3]; 401ebb9252SMarcel Holtmann __le16 clock_offset; 411da177e4SLinus Torvalds __s8 rssi; 4241a96212SMarcel Holtmann __u8 ssp_mode; 431da177e4SLinus Torvalds }; 441da177e4SLinus Torvalds 451da177e4SLinus Torvalds struct inquiry_entry { 46561aafbcSJohan Hedberg struct list_head all; /* inq_cache.all */ 47561aafbcSJohan Hedberg struct list_head list; /* unknown or resolve */ 48561aafbcSJohan Hedberg enum { 49561aafbcSJohan Hedberg NAME_NOT_KNOWN, 50561aafbcSJohan Hedberg NAME_NEEDED, 51561aafbcSJohan Hedberg NAME_PENDING, 52561aafbcSJohan Hedberg NAME_KNOWN, 53561aafbcSJohan Hedberg } name_state; 541da177e4SLinus Torvalds __u32 timestamp; 551da177e4SLinus Torvalds struct inquiry_data data; 561da177e4SLinus Torvalds }; 571da177e4SLinus Torvalds 5830883512SJohan Hedberg struct discovery_state { 594aab14e5SAndre Guedes int type; 60ff9ef578SJohan Hedberg enum { 61ff9ef578SJohan Hedberg DISCOVERY_STOPPED, 62ff9ef578SJohan Hedberg DISCOVERY_STARTING, 63343f935bSAndre Guedes DISCOVERY_FINDING, 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; 76bd1eb66bSAndrei Emeltchenko unsigned int amp_num; 771da177e4SLinus Torvalds unsigned int sco_num; 78fcd89c09SVille Tervo unsigned int le_num; 791da177e4SLinus Torvalds }; 801da177e4SLinus Torvalds 81f0358568SJohan Hedberg struct bdaddr_list { 82f0358568SJohan Hedberg struct list_head list; 83f0358568SJohan Hedberg bdaddr_t bdaddr; 84b9ee0a78SMarcel Holtmann u8 bdaddr_type; 85f0358568SJohan Hedberg }; 862aeb9a1aSJohan Hedberg 872aeb9a1aSJohan Hedberg struct bt_uuid { 882aeb9a1aSJohan Hedberg struct list_head list; 892aeb9a1aSJohan Hedberg u8 uuid[16]; 9083be8ecaSJohan Hedberg u8 size; 911aff6f09SJohan Hedberg u8 svc_hint; 922aeb9a1aSJohan Hedberg }; 932aeb9a1aSJohan Hedberg 94b899efafSVinicius Costa Gomes struct smp_ltk { 95b899efafSVinicius Costa Gomes struct list_head list; 96b899efafSVinicius Costa Gomes bdaddr_t bdaddr; 97b899efafSVinicius Costa Gomes u8 bdaddr_type; 98b899efafSVinicius Costa Gomes u8 authenticated; 99b899efafSVinicius Costa Gomes u8 type; 100b899efafSVinicius Costa Gomes u8 enc_size; 101b899efafSVinicius Costa Gomes __le16 ediv; 102b899efafSVinicius Costa Gomes u8 rand[8]; 103b899efafSVinicius Costa Gomes u8 val[16]; 10403c515d7SMarcel Holtmann }; 105b899efafSVinicius Costa Gomes 106970c4e46SJohan Hedberg struct smp_irk { 107970c4e46SJohan Hedberg struct list_head list; 108970c4e46SJohan Hedberg bdaddr_t rpa; 109970c4e46SJohan Hedberg bdaddr_t bdaddr; 110970c4e46SJohan Hedberg u8 addr_type; 111970c4e46SJohan Hedberg u8 val[16]; 112970c4e46SJohan Hedberg }; 113970c4e46SJohan Hedberg 11455ed8ca1SJohan Hedberg struct link_key { 11555ed8ca1SJohan Hedberg struct list_head list; 11655ed8ca1SJohan Hedberg bdaddr_t bdaddr; 11755ed8ca1SJohan Hedberg u8 type; 1189b3b4460SAndrei Emeltchenko u8 val[HCI_LINK_KEY_SIZE]; 11955ed8ca1SJohan Hedberg u8 pin_len; 12055ed8ca1SJohan Hedberg }; 12155ed8ca1SJohan Hedberg 1222763eda6SSzymon Janc struct oob_data { 1232763eda6SSzymon Janc struct list_head list; 1242763eda6SSzymon Janc bdaddr_t bdaddr; 125519ca9d0SMarcel Holtmann u8 hash192[16]; 126519ca9d0SMarcel Holtmann u8 randomizer192[16]; 127519ca9d0SMarcel Holtmann u8 hash256[16]; 128519ca9d0SMarcel Holtmann u8 randomizer256[16]; 1292763eda6SSzymon Janc }; 1302763eda6SSzymon Janc 131490c5babSJohan Hedberg #define HCI_MAX_SHORT_NAME_LENGTH 10 132490c5babSJohan Hedberg 133d6bfd59cSJohan Hedberg /* Default LE RPA expiry time, 15 minutes */ 134d6bfd59cSJohan Hedberg #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 135d6bfd59cSJohan Hedberg 136903e4541SAndrei Emeltchenko struct amp_assoc { 137903e4541SAndrei Emeltchenko __u16 len; 138903e4541SAndrei Emeltchenko __u16 offset; 13993c284eeSAndrei Emeltchenko __u16 rem_len; 14093c284eeSAndrei Emeltchenko __u16 len_so_far; 141903e4541SAndrei Emeltchenko __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 142903e4541SAndrei Emeltchenko }; 143903e4541SAndrei Emeltchenko 144d2c5d77fSJohan Hedberg #define HCI_MAX_PAGES 3 145cad718edSJohan Hedberg 146cd4c5391SSuraj Sumangala #define NUM_REASSEMBLY 4 1471da177e4SLinus Torvalds struct hci_dev { 1481da177e4SLinus Torvalds struct list_head list; 14909fd0de5SGustavo F. Padovan struct mutex lock; 1501da177e4SLinus Torvalds 1511da177e4SLinus Torvalds char name[8]; 1521da177e4SLinus Torvalds unsigned long flags; 1531da177e4SLinus Torvalds __u16 id; 154c13854ceSMarcel Holtmann __u8 bus; 155943da25dSMarcel Holtmann __u8 dev_type; 1561da177e4SLinus Torvalds bdaddr_t bdaddr; 1577a4cd51dSMarcel Holtmann bdaddr_t random_addr; 158d13eafceSMarcel Holtmann bdaddr_t static_addr; 15979830f66SMarcel Holtmann __u8 own_addr_type; 1601f6c6378SJohan Hedberg __u8 dev_name[HCI_MAX_NAME_LENGTH]; 161490c5babSJohan Hedberg __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 16280a1e1dbSJohan Hedberg __u8 eir[HCI_MAX_EIR_LENGTH]; 163a9de9248SMarcel Holtmann __u8 dev_class[3]; 1641aff6f09SJohan Hedberg __u8 major_class; 1651aff6f09SJohan Hedberg __u8 minor_class; 166d2c5d77fSJohan Hedberg __u8 max_page; 167cad718edSJohan Hedberg __u8 features[HCI_MAX_PAGES][8]; 16860e77321SJohan Hedberg __u8 le_features[8]; 169cf1d081fSJohan Hedberg __u8 le_white_list_size; 1709b008c04SJohan Hedberg __u8 le_states[8]; 171a9de9248SMarcel Holtmann __u8 commands[64]; 1721143e5a6SMarcel Holtmann __u8 hci_ver; 1731143e5a6SMarcel Holtmann __u16 hci_rev; 174d5859e22SJohan Hedberg __u8 lmp_ver; 1751143e5a6SMarcel Holtmann __u16 manufacturer; 1767d69230cSAndrei Emeltchenko __u16 lmp_subver; 1771da177e4SLinus Torvalds __u16 voice_setting; 178b4cb9fb2SMarcel Holtmann __u8 num_iac; 17917fa4b9dSJohan Hedberg __u8 io_capability; 18091c4e9b1SMarcel Holtmann __s8 inq_tx_power; 181f332ec66SJohan Hedberg __u16 page_scan_interval; 182f332ec66SJohan Hedberg __u16 page_scan_window; 183f332ec66SJohan Hedberg __u8 page_scan_type; 1843f959d46SMarcel Holtmann __u8 le_adv_channel_map; 185bef64738SMarcel Holtmann __u16 le_scan_interval; 186bef64738SMarcel Holtmann __u16 le_scan_window; 1874e70c7e7SMarcel Holtmann __u16 le_conn_min_interval; 1884e70c7e7SMarcel Holtmann __u16 le_conn_max_interval; 18906f5b778SMarcel Holtmann __u8 ssp_debug_mode; 190f332ec66SJohan Hedberg 1912b9be137SMarcel Holtmann __u16 devid_source; 1922b9be137SMarcel Holtmann __u16 devid_vendor; 1932b9be137SMarcel Holtmann __u16 devid_product; 1942b9be137SMarcel Holtmann __u16 devid_version; 1951da177e4SLinus Torvalds 1961da177e4SLinus Torvalds __u16 pkt_type; 1975b7f9909SMarcel Holtmann __u16 esco_type; 1981da177e4SLinus Torvalds __u16 link_policy; 1991da177e4SLinus Torvalds __u16 link_mode; 2001da177e4SLinus Torvalds 20104837f64SMarcel Holtmann __u32 idle_timeout; 20204837f64SMarcel Holtmann __u16 sniff_min_interval; 20304837f64SMarcel Holtmann __u16 sniff_max_interval; 20404837f64SMarcel Holtmann 205928abaa7SAndrei Emeltchenko __u8 amp_status; 206928abaa7SAndrei Emeltchenko __u32 amp_total_bw; 207928abaa7SAndrei Emeltchenko __u32 amp_max_bw; 208928abaa7SAndrei Emeltchenko __u32 amp_min_latency; 209928abaa7SAndrei Emeltchenko __u32 amp_max_pdu; 210928abaa7SAndrei Emeltchenko __u8 amp_type; 211928abaa7SAndrei Emeltchenko __u16 amp_pal_cap; 212928abaa7SAndrei Emeltchenko __u16 amp_assoc_size; 213928abaa7SAndrei Emeltchenko __u32 amp_max_flush_to; 214928abaa7SAndrei Emeltchenko __u32 amp_be_flush_to; 215928abaa7SAndrei Emeltchenko 216903e4541SAndrei Emeltchenko struct amp_assoc loc_assoc; 217903e4541SAndrei Emeltchenko 2181e89cffbSAndrei Emeltchenko __u8 flow_ctl_mode; 2191e89cffbSAndrei Emeltchenko 2209f61656aSJohan Hedberg unsigned int auto_accept_delay; 2219f61656aSJohan Hedberg 2221da177e4SLinus Torvalds unsigned long quirks; 2231da177e4SLinus Torvalds 2241da177e4SLinus Torvalds atomic_t cmd_cnt; 2251da177e4SLinus Torvalds unsigned int acl_cnt; 2261da177e4SLinus Torvalds unsigned int sco_cnt; 2276ed58ec5SVille Tervo unsigned int le_cnt; 2281da177e4SLinus Torvalds 2291da177e4SLinus Torvalds unsigned int acl_mtu; 2301da177e4SLinus Torvalds unsigned int sco_mtu; 2316ed58ec5SVille Tervo unsigned int le_mtu; 2321da177e4SLinus Torvalds unsigned int acl_pkts; 2331da177e4SLinus Torvalds unsigned int sco_pkts; 2346ed58ec5SVille Tervo unsigned int le_pkts; 2351da177e4SLinus Torvalds 236350ee4cfSAndrei Emeltchenko __u16 block_len; 237350ee4cfSAndrei Emeltchenko __u16 block_mtu; 238350ee4cfSAndrei Emeltchenko __u16 num_blocks; 239350ee4cfSAndrei Emeltchenko __u16 block_cnt; 240350ee4cfSAndrei Emeltchenko 2411da177e4SLinus Torvalds unsigned long acl_last_tx; 2421da177e4SLinus Torvalds unsigned long sco_last_tx; 2436ed58ec5SVille Tervo unsigned long le_last_tx; 2441da177e4SLinus Torvalds 245f48fd9c8SMarcel Holtmann struct workqueue_struct *workqueue; 2466ead1bbcSJohan Hedberg struct workqueue_struct *req_workqueue; 247f48fd9c8SMarcel Holtmann 248ab81cbf9SJohan Hedberg struct work_struct power_on; 2493243553fSJohan Hedberg struct delayed_work power_off; 250ab81cbf9SJohan Hedberg 25116ab91abSJohan Hedberg __u16 discov_timeout; 25216ab91abSJohan Hedberg struct delayed_work discov_off; 25316ab91abSJohan Hedberg 2547d78525dSJohan Hedberg struct delayed_work service_cache; 2557d78525dSJohan Hedberg 2566bd32326SVille Tervo struct timer_list cmd_timer; 257b78752ccSMarcel Holtmann 258b78752ccSMarcel Holtmann struct work_struct rx_work; 259c347b765SGustavo F. Padovan struct work_struct cmd_work; 2603eff45eaSGustavo F. Padovan struct work_struct tx_work; 2611da177e4SLinus Torvalds 2621da177e4SLinus Torvalds struct sk_buff_head rx_q; 2631da177e4SLinus Torvalds struct sk_buff_head raw_q; 2641da177e4SLinus Torvalds struct sk_buff_head cmd_q; 2651da177e4SLinus Torvalds 266b6ddb638SJohan Hedberg struct sk_buff *recv_evt; 2671da177e4SLinus Torvalds struct sk_buff *sent_cmd; 268cd4c5391SSuraj Sumangala struct sk_buff *reassembly[NUM_REASSEMBLY]; 2691da177e4SLinus Torvalds 270a6a67efdSThomas Gleixner struct mutex req_lock; 2711da177e4SLinus Torvalds wait_queue_head_t req_wait_q; 2721da177e4SLinus Torvalds __u32 req_status; 2731da177e4SLinus Torvalds __u32 req_result; 274a5040efaSJohan Hedberg 27599780a7bSJohan Hedberg struct crypto_blkcipher *tfm_aes; 2762e58ef3eSJohan Hedberg 27730883512SJohan Hedberg struct discovery_state discovery; 2781da177e4SLinus Torvalds struct hci_conn_hash conn_hash; 2795c136e90SAndre Guedes 2805c136e90SAndre Guedes struct list_head mgmt_pending; 281ea4bd8baSDavid Miller struct list_head blacklist; 2822aeb9a1aSJohan Hedberg struct list_head uuids; 28355ed8ca1SJohan Hedberg struct list_head link_keys; 284b899efafSVinicius Costa Gomes struct list_head long_term_keys; 285970c4e46SJohan Hedberg struct list_head identity_resolving_keys; 2862763eda6SSzymon Janc struct list_head remote_oob_data; 28715819a70SAndre Guedes struct list_head le_conn_params; 2882763eda6SSzymon Janc 2891da177e4SLinus Torvalds struct hci_dev_stats stat; 2901da177e4SLinus Torvalds 2911da177e4SLinus Torvalds atomic_t promisc; 2921da177e4SLinus Torvalds 293ca325f69SMarcel Holtmann struct dentry *debugfs; 294ca325f69SMarcel Holtmann 295a91f2e39SMarcel Holtmann struct device dev; 2961da177e4SLinus Torvalds 297611b30f7SMarcel Holtmann struct rfkill *rfkill; 298611b30f7SMarcel Holtmann 299d23264a8SAndre Guedes unsigned long dev_flags; 300d23264a8SAndre Guedes 3017ba8b4beSAndre Guedes struct delayed_work le_scan_disable; 3027ba8b4beSAndre Guedes 3038fa19098SJohan Hedberg __s8 adv_tx_power; 3043f0f524bSJohan Hedberg __u8 adv_data[HCI_MAX_AD_LENGTH]; 3053f0f524bSJohan Hedberg __u8 adv_data_len; 306f8e808bdSMarcel Holtmann __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; 307f8e808bdSMarcel Holtmann __u8 scan_rsp_data_len; 3088fa19098SJohan Hedberg 309863efaf2SJohan Hedberg __u8 irk[16]; 310d6bfd59cSJohan Hedberg __u32 rpa_timeout; 311d6bfd59cSJohan Hedberg struct delayed_work rpa_expired; 312863efaf2SJohan Hedberg 3131da177e4SLinus Torvalds int (*open)(struct hci_dev *hdev); 3141da177e4SLinus Torvalds int (*close)(struct hci_dev *hdev); 3151da177e4SLinus Torvalds int (*flush)(struct hci_dev *hdev); 316f41c70c4SMarcel Holtmann int (*setup)(struct hci_dev *hdev); 3177bd8f09fSMarcel Holtmann int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 3181da177e4SLinus Torvalds void (*notify)(struct hci_dev *hdev, unsigned int evt); 3191da177e4SLinus Torvalds }; 3201da177e4SLinus Torvalds 32153502d69SAndrei Emeltchenko #define HCI_PHY_HANDLE(handle) (handle & 0xff) 32253502d69SAndrei Emeltchenko 3231da177e4SLinus Torvalds struct hci_conn { 3241da177e4SLinus Torvalds struct list_head list; 3251da177e4SLinus Torvalds 3261da177e4SLinus Torvalds atomic_t refcnt; 3271da177e4SLinus Torvalds 3281da177e4SLinus Torvalds bdaddr_t dst; 32929b7988aSAndre Guedes __u8 dst_type; 330662e8820SMarcel Holtmann bdaddr_t src; 331e7c4096eSMarcel Holtmann __u8 src_type; 3321da177e4SLinus Torvalds __u16 handle; 3331da177e4SLinus Torvalds __u16 state; 33404837f64SMarcel Holtmann __u8 mode; 3351da177e4SLinus Torvalds __u8 type; 336a0c808b3SJohan Hedberg bool out; 3374c67bc74SMarcel Holtmann __u8 attempt; 3381da177e4SLinus Torvalds __u8 dev_class[3]; 339cad718edSJohan Hedberg __u8 features[HCI_MAX_PAGES][8]; 340a8746417SMarcel Holtmann __u16 pkt_type; 34104837f64SMarcel Holtmann __u16 link_policy; 3421da177e4SLinus Torvalds __u32 link_mode; 34313d39315SWaldemar Rymarkiewicz __u8 key_type; 34440be492fSMarcel Holtmann __u8 auth_type; 3458c1b2355SMarcel Holtmann __u8 sec_level; 346765c2a96SJohan Hedberg __u8 pending_sec_level; 347980e1a53SJohan Hedberg __u8 pin_length; 348726b4ffcSVinicius Costa Gomes __u8 enc_key_size; 34917fa4b9dSJohan Hedberg __u8 io_capability; 35092a25256SJohan Hedberg __u32 passkey_notify; 35192a25256SJohan Hedberg __u8 passkey_entered; 352052b30b0SMarcel Holtmann __u16 disc_timeout; 35310c62ddcSFrédéric Dalleau __u16 setting; 3541e406eefSAndre Guedes __u16 le_conn_min_interval; 3551e406eefSAndre Guedes __u16 le_conn_max_interval; 35651a8efd7SJohan Hedberg unsigned long flags; 3571da177e4SLinus Torvalds 35803b555e1SJohan Hedberg __u8 remote_cap; 35903b555e1SJohan Hedberg __u8 remote_auth; 3603161ae1cSAndrei Emeltchenko __u8 remote_id; 3616ec5bcadSVishal Agarwal bool flush_key; 36203b555e1SJohan Hedberg 3631da177e4SLinus Torvalds unsigned int sent; 3641da177e4SLinus Torvalds 3651da177e4SLinus Torvalds struct sk_buff_head data_q; 3662c33c06aSGustavo F. Padovan struct list_head chan_list; 3671da177e4SLinus Torvalds 36819c40e3bSGustavo F. Padovan struct delayed_work disc_work; 3697bc18d9dSJohan Hedberg struct delayed_work auto_accept_work; 370a74a84f6SJohan Hedberg struct delayed_work idle_work; 3711da177e4SLinus Torvalds 372b219e3acSMarcel Holtmann struct device dev; 373b219e3acSMarcel Holtmann 3741da177e4SLinus Torvalds struct hci_dev *hdev; 3751da177e4SLinus Torvalds void *l2cap_data; 3761da177e4SLinus Torvalds void *sco_data; 3772b64d153SBrian Gix void *smp_conn; 3789740e49dSAndrei Emeltchenko struct amp_mgr *amp_mgr; 3791da177e4SLinus Torvalds 3801da177e4SLinus Torvalds struct hci_conn *link; 381e9a416b5SJohan Hedberg 382e9a416b5SJohan Hedberg void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 383e9a416b5SJohan Hedberg void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 384e9a416b5SJohan Hedberg void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 3851da177e4SLinus Torvalds }; 3861da177e4SLinus Torvalds 38773d80debSLuiz Augusto von Dentz struct hci_chan { 38873d80debSLuiz Augusto von Dentz struct list_head list; 38942c4e53eSAndrei Emeltchenko __u16 handle; 39073d80debSLuiz Augusto von Dentz struct hci_conn *conn; 39173d80debSLuiz Augusto von Dentz struct sk_buff_head data_q; 39273d80debSLuiz Augusto von Dentz unsigned int sent; 393168df8e5SMat Martineau __u8 state; 39473d80debSLuiz Augusto von Dentz }; 39573d80debSLuiz Augusto von Dentz 39615819a70SAndre Guedes struct hci_conn_params { 39715819a70SAndre Guedes struct list_head list; 39815819a70SAndre Guedes 39915819a70SAndre Guedes bdaddr_t addr; 40015819a70SAndre Guedes u8 addr_type; 40115819a70SAndre Guedes 40215819a70SAndre Guedes u16 conn_min_interval; 40315819a70SAndre Guedes u16 conn_max_interval; 40415819a70SAndre Guedes }; 40515819a70SAndre Guedes 4061da177e4SLinus Torvalds extern struct list_head hci_dev_list; 4071da177e4SLinus Torvalds extern struct list_head hci_cb_list; 4081da177e4SLinus Torvalds extern rwlock_t hci_dev_list_lock; 4091da177e4SLinus Torvalds extern rwlock_t hci_cb_list_lock; 4101da177e4SLinus Torvalds 411686ebf28SUlisses Furquim /* ----- HCI interface to upper protocols ----- */ 412e74e58f8SJoe Perches int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 413e74e58f8SJoe Perches void l2cap_connect_cfm(struct hci_conn *hcon, u8 status); 414e74e58f8SJoe Perches int l2cap_disconn_ind(struct hci_conn *hcon); 415e74e58f8SJoe Perches void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); 416e74e58f8SJoe Perches int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); 417e74e58f8SJoe Perches int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 418686ebf28SUlisses Furquim 419e74e58f8SJoe Perches int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 420e74e58f8SJoe Perches void sco_connect_cfm(struct hci_conn *hcon, __u8 status); 421e74e58f8SJoe Perches void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); 422e74e58f8SJoe Perches int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 423686ebf28SUlisses Furquim 4241da177e4SLinus Torvalds /* ----- Inquiry cache ----- */ 42570f23020SAndrei Emeltchenko #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 42670f23020SAndrei Emeltchenko #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 4271da177e4SLinus Torvalds 42830883512SJohan Hedberg static inline void discovery_init(struct hci_dev *hdev) 4291da177e4SLinus Torvalds { 430ff9ef578SJohan Hedberg hdev->discovery.state = DISCOVERY_STOPPED; 43130883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.all); 43230883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.unknown); 43330883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.resolve); 4341da177e4SLinus Torvalds } 4351da177e4SLinus Torvalds 43630dc78e1SJohan Hedberg bool hci_discovery_active(struct hci_dev *hdev); 43730dc78e1SJohan Hedberg 438ff9ef578SJohan Hedberg void hci_discovery_set_state(struct hci_dev *hdev, int state); 439ff9ef578SJohan Hedberg 4401da177e4SLinus Torvalds static inline int inquiry_cache_empty(struct hci_dev *hdev) 4411da177e4SLinus Torvalds { 44230883512SJohan Hedberg return list_empty(&hdev->discovery.all); 4431da177e4SLinus Torvalds } 4441da177e4SLinus Torvalds 4451da177e4SLinus Torvalds static inline long inquiry_cache_age(struct hci_dev *hdev) 4461da177e4SLinus Torvalds { 44730883512SJohan Hedberg struct discovery_state *c = &hdev->discovery; 4481da177e4SLinus Torvalds return jiffies - c->timestamp; 4491da177e4SLinus Torvalds } 4501da177e4SLinus Torvalds 4511da177e4SLinus Torvalds static inline long inquiry_entry_age(struct inquiry_entry *e) 4521da177e4SLinus Torvalds { 4531da177e4SLinus Torvalds return jiffies - e->timestamp; 4541da177e4SLinus Torvalds } 4551da177e4SLinus Torvalds 4565a9d0a3fSWaldemar Rymarkiewicz struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 4575a9d0a3fSWaldemar Rymarkiewicz bdaddr_t *bdaddr); 458561aafbcSJohan Hedberg struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 459561aafbcSJohan Hedberg bdaddr_t *bdaddr); 46030dc78e1SJohan Hedberg struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 46130dc78e1SJohan Hedberg bdaddr_t *bdaddr, 46230dc78e1SJohan Hedberg int state); 463a3d4e20aSJohan Hedberg void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 464a3d4e20aSJohan Hedberg struct inquiry_entry *ie); 4653175405bSJohan Hedberg bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 466388fc8faSJohan Hedberg bool name_known, bool *ssp); 4671f9b9a5dSAndre Guedes void hci_inquiry_cache_flush(struct hci_dev *hdev); 4681da177e4SLinus Torvalds 4691da177e4SLinus Torvalds /* ----- HCI Connections ----- */ 4701da177e4SLinus Torvalds enum { 4711da177e4SLinus Torvalds HCI_CONN_AUTH_PEND, 47219f8def0SWaldemar Rymarkiewicz HCI_CONN_REAUTH_PEND, 4731da177e4SLinus Torvalds HCI_CONN_ENCRYPT_PEND, 47404837f64SMarcel Holtmann HCI_CONN_RSWITCH_PEND, 47504837f64SMarcel Holtmann HCI_CONN_MODE_CHANGE_PEND, 476e73439d8SMarcel Holtmann HCI_CONN_SCO_SETUP_PEND, 477d26a2345SVinicius Costa Gomes HCI_CONN_LE_SMP_PEND, 478b644ba33SJohan Hedberg HCI_CONN_MGMT_CONNECTED, 47958a681efSJohan Hedberg HCI_CONN_SSP_ENABLED, 480eb9a8f3fSMarcel Holtmann HCI_CONN_SC_ENABLED, 481abf76badSMarcel Holtmann HCI_CONN_AES_CCM, 48258a681efSJohan Hedberg HCI_CONN_POWER_SAVE, 48358a681efSJohan Hedberg HCI_CONN_REMOTE_OOB, 48418722c24SJukka Rissanen HCI_CONN_6LOWPAN, 4851da177e4SLinus Torvalds }; 4861da177e4SLinus Torvalds 487aa64a8b5SJohan Hedberg static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 488aa64a8b5SJohan Hedberg { 489aa64a8b5SJohan Hedberg struct hci_dev *hdev = conn->hdev; 490c3c7ea65SGustavo Padovan return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && 491c3c7ea65SGustavo Padovan test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 492aa64a8b5SJohan Hedberg } 493aa64a8b5SJohan Hedberg 494eb9a8f3fSMarcel Holtmann static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 495eb9a8f3fSMarcel Holtmann { 496eb9a8f3fSMarcel Holtmann struct hci_dev *hdev = conn->hdev; 497eb9a8f3fSMarcel Holtmann return test_bit(HCI_SC_ENABLED, &hdev->dev_flags) && 498eb9a8f3fSMarcel Holtmann test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 499eb9a8f3fSMarcel Holtmann } 500eb9a8f3fSMarcel Holtmann 5011da177e4SLinus Torvalds static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 5021da177e4SLinus Torvalds { 5031da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 504bf4c6325SGustavo F. Padovan list_add_rcu(&c->list, &h->list); 505fcd89c09SVille Tervo switch (c->type) { 506fcd89c09SVille Tervo case ACL_LINK: 5071da177e4SLinus Torvalds h->acl_num++; 508fcd89c09SVille Tervo break; 509bd1eb66bSAndrei Emeltchenko case AMP_LINK: 510bd1eb66bSAndrei Emeltchenko h->amp_num++; 511bd1eb66bSAndrei Emeltchenko break; 512fcd89c09SVille Tervo case LE_LINK: 513fcd89c09SVille Tervo h->le_num++; 514fcd89c09SVille Tervo break; 515fcd89c09SVille Tervo case SCO_LINK: 516fcd89c09SVille Tervo case ESCO_LINK: 5171da177e4SLinus Torvalds h->sco_num++; 518fcd89c09SVille Tervo break; 519fcd89c09SVille Tervo } 5201da177e4SLinus Torvalds } 5211da177e4SLinus Torvalds 5221da177e4SLinus Torvalds static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 5231da177e4SLinus Torvalds { 5241da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 525bf4c6325SGustavo F. Padovan 526bf4c6325SGustavo F. Padovan list_del_rcu(&c->list); 527bf4c6325SGustavo F. Padovan synchronize_rcu(); 528bf4c6325SGustavo F. Padovan 529fcd89c09SVille Tervo switch (c->type) { 530fcd89c09SVille Tervo case ACL_LINK: 5311da177e4SLinus Torvalds h->acl_num--; 532fcd89c09SVille Tervo break; 533bd1eb66bSAndrei Emeltchenko case AMP_LINK: 534bd1eb66bSAndrei Emeltchenko h->amp_num--; 535bd1eb66bSAndrei Emeltchenko break; 536fcd89c09SVille Tervo case LE_LINK: 537fcd89c09SVille Tervo h->le_num--; 538fcd89c09SVille Tervo break; 539fcd89c09SVille Tervo case SCO_LINK: 540fcd89c09SVille Tervo case ESCO_LINK: 5411da177e4SLinus Torvalds h->sco_num--; 542fcd89c09SVille Tervo break; 543fcd89c09SVille Tervo } 5441da177e4SLinus Torvalds } 5451da177e4SLinus Torvalds 54652087a79SLuiz Augusto von Dentz static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 54752087a79SLuiz Augusto von Dentz { 54852087a79SLuiz Augusto von Dentz struct hci_conn_hash *h = &hdev->conn_hash; 54952087a79SLuiz Augusto von Dentz switch (type) { 55052087a79SLuiz Augusto von Dentz case ACL_LINK: 55152087a79SLuiz Augusto von Dentz return h->acl_num; 552bd1eb66bSAndrei Emeltchenko case AMP_LINK: 553bd1eb66bSAndrei Emeltchenko return h->amp_num; 55452087a79SLuiz Augusto von Dentz case LE_LINK: 55552087a79SLuiz Augusto von Dentz return h->le_num; 55652087a79SLuiz Augusto von Dentz case SCO_LINK: 55752087a79SLuiz Augusto von Dentz case ESCO_LINK: 55852087a79SLuiz Augusto von Dentz return h->sco_num; 55952087a79SLuiz Augusto von Dentz default: 56052087a79SLuiz Augusto von Dentz return 0; 56152087a79SLuiz Augusto von Dentz } 56252087a79SLuiz Augusto von Dentz } 56352087a79SLuiz Augusto von Dentz 5641da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 5651da177e4SLinus Torvalds __u16 handle) 5661da177e4SLinus Torvalds { 5671da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 5681da177e4SLinus Torvalds struct hci_conn *c; 5691da177e4SLinus Torvalds 570bf4c6325SGustavo F. Padovan rcu_read_lock(); 571bf4c6325SGustavo F. Padovan 572bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 573bf4c6325SGustavo F. Padovan if (c->handle == handle) { 574bf4c6325SGustavo F. Padovan rcu_read_unlock(); 5751da177e4SLinus Torvalds return c; 5761da177e4SLinus Torvalds } 577bf4c6325SGustavo F. Padovan } 578bf4c6325SGustavo F. Padovan rcu_read_unlock(); 579bf4c6325SGustavo F. Padovan 5801da177e4SLinus Torvalds return NULL; 5811da177e4SLinus Torvalds } 5821da177e4SLinus Torvalds 5831da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 5841da177e4SLinus Torvalds __u8 type, bdaddr_t *ba) 5851da177e4SLinus Torvalds { 5861da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 5871da177e4SLinus Torvalds struct hci_conn *c; 5881da177e4SLinus Torvalds 589bf4c6325SGustavo F. Padovan rcu_read_lock(); 590bf4c6325SGustavo F. Padovan 591bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 592bf4c6325SGustavo F. Padovan if (c->type == type && !bacmp(&c->dst, ba)) { 593bf4c6325SGustavo F. Padovan rcu_read_unlock(); 5941da177e4SLinus Torvalds return c; 5951da177e4SLinus Torvalds } 596bf4c6325SGustavo F. Padovan } 597bf4c6325SGustavo F. Padovan 598bf4c6325SGustavo F. Padovan rcu_read_unlock(); 599bf4c6325SGustavo F. Padovan 6001da177e4SLinus Torvalds return NULL; 6011da177e4SLinus Torvalds } 6021da177e4SLinus Torvalds 6034c67bc74SMarcel Holtmann static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 6044c67bc74SMarcel Holtmann __u8 type, __u16 state) 6054c67bc74SMarcel Holtmann { 6064c67bc74SMarcel Holtmann struct hci_conn_hash *h = &hdev->conn_hash; 6074c67bc74SMarcel Holtmann struct hci_conn *c; 6084c67bc74SMarcel Holtmann 609bf4c6325SGustavo F. Padovan rcu_read_lock(); 610bf4c6325SGustavo F. Padovan 611bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 612bf4c6325SGustavo F. Padovan if (c->type == type && c->state == state) { 613bf4c6325SGustavo F. Padovan rcu_read_unlock(); 6144c67bc74SMarcel Holtmann return c; 6154c67bc74SMarcel Holtmann } 616bf4c6325SGustavo F. Padovan } 617bf4c6325SGustavo F. Padovan 618bf4c6325SGustavo F. Padovan rcu_read_unlock(); 619bf4c6325SGustavo F. Padovan 6204c67bc74SMarcel Holtmann return NULL; 6214c67bc74SMarcel Holtmann } 6224c67bc74SMarcel Holtmann 623bed71748SAndre Guedes void hci_disconnect(struct hci_conn *conn, __u8 reason); 6242dea632fSFrédéric Dalleau bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 625e73439d8SMarcel Holtmann void hci_sco_setup(struct hci_conn *conn, __u8 status); 6261da177e4SLinus Torvalds 6271da177e4SLinus Torvalds struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst); 6281da177e4SLinus Torvalds int hci_conn_del(struct hci_conn *conn); 6291da177e4SLinus Torvalds void hci_conn_hash_flush(struct hci_dev *hdev); 630a9de9248SMarcel Holtmann void hci_conn_check_pending(struct hci_dev *hdev); 6311da177e4SLinus Torvalds 63273d80debSLuiz Augusto von Dentz struct hci_chan *hci_chan_create(struct hci_conn *conn); 6339472007cSAndrei Emeltchenko void hci_chan_del(struct hci_chan *chan); 6342c33c06aSGustavo F. Padovan void hci_chan_list_flush(struct hci_conn *conn); 63542c4e53eSAndrei Emeltchenko struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 63673d80debSLuiz Augusto von Dentz 6375a9d0a3fSWaldemar Rymarkiewicz struct hci_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, 638b12f62cfSAndre Guedes __u8 dst_type, __u8 sec_level, __u8 auth_type); 63910c62ddcSFrédéric Dalleau struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 64010c62ddcSFrédéric Dalleau __u16 setting); 641e7c29cb1SMarcel Holtmann int hci_conn_check_link_mode(struct hci_conn *conn); 642b3b1b061SWaldemar Rymarkiewicz int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 6430684e5f9SMarcel Holtmann int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type); 6441da177e4SLinus Torvalds int hci_conn_change_link_key(struct hci_conn *conn); 6458c1b2355SMarcel Holtmann int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 6461da177e4SLinus Torvalds 64714b12d0bSJaikumar Ganesh void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 6481da177e4SLinus Torvalds 6498d12356fSDavid Herrmann /* 6508d12356fSDavid Herrmann * hci_conn_get() and hci_conn_put() are used to control the life-time of an 6518d12356fSDavid Herrmann * "hci_conn" object. They do not guarantee that the hci_conn object is running, 6528d12356fSDavid Herrmann * working or anything else. They just guarantee that the object is available 6538d12356fSDavid Herrmann * and can be dereferenced. So you can use its locks, local variables and any 6548d12356fSDavid Herrmann * other constant data. 6558d12356fSDavid Herrmann * Before accessing runtime data, you _must_ lock the object and then check that 6568d12356fSDavid Herrmann * it is still running. As soon as you release the locks, the connection might 6578d12356fSDavid Herrmann * get dropped, though. 6588d12356fSDavid Herrmann * 6598d12356fSDavid Herrmann * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 6608d12356fSDavid Herrmann * how long the underlying connection is held. So every channel that runs on the 6618d12356fSDavid Herrmann * hci_conn object calls this to prevent the connection from disappearing. As 6628d12356fSDavid Herrmann * long as you hold a device, you must also guarantee that you have a valid 6638d12356fSDavid Herrmann * reference to the device via hci_conn_get() (or the initial reference from 6648d12356fSDavid Herrmann * hci_conn_add()). 6658d12356fSDavid Herrmann * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 6668d12356fSDavid Herrmann * break because nobody cares for that. But this means, we cannot use 6678d12356fSDavid Herrmann * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 6688d12356fSDavid Herrmann */ 6698d12356fSDavid Herrmann 6708d12356fSDavid Herrmann static inline void hci_conn_get(struct hci_conn *conn) 6718d12356fSDavid Herrmann { 6728d12356fSDavid Herrmann get_device(&conn->dev); 6738d12356fSDavid Herrmann } 6748d12356fSDavid Herrmann 6758d12356fSDavid Herrmann static inline void hci_conn_put(struct hci_conn *conn) 6768d12356fSDavid Herrmann { 6778d12356fSDavid Herrmann put_device(&conn->dev); 6788d12356fSDavid Herrmann } 6798d12356fSDavid Herrmann 6801da177e4SLinus Torvalds static inline void hci_conn_hold(struct hci_conn *conn) 6811da177e4SLinus Torvalds { 68271becf0cSAndrei Emeltchenko BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 68338b3fef1SAndrei Emeltchenko 6841da177e4SLinus Torvalds atomic_inc(&conn->refcnt); 6852f304d1eSAndre Guedes cancel_delayed_work(&conn->disc_work); 6861da177e4SLinus Torvalds } 6871da177e4SLinus Torvalds 68876a68ba0SDavid Herrmann static inline void hci_conn_drop(struct hci_conn *conn) 6891da177e4SLinus Torvalds { 69071becf0cSAndrei Emeltchenko BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 69138b3fef1SAndrei Emeltchenko 6921da177e4SLinus Torvalds if (atomic_dec_and_test(&conn->refcnt)) { 69304837f64SMarcel Holtmann unsigned long timeo; 694716e4ab5SAndrei Emeltchenko 695716e4ab5SAndrei Emeltchenko switch (conn->type) { 696716e4ab5SAndrei Emeltchenko case ACL_LINK: 697716e4ab5SAndrei Emeltchenko case LE_LINK: 698a74a84f6SJohan Hedberg cancel_delayed_work(&conn->idle_work); 6996ac59344SMarcel Holtmann if (conn->state == BT_CONNECTED) { 7005f246e89SAndrei Emeltchenko timeo = conn->disc_timeout; 70104837f64SMarcel Holtmann if (!conn->out) 702052b30b0SMarcel Holtmann timeo *= 2; 7035a9d0a3fSWaldemar Rymarkiewicz } else { 7046ac59344SMarcel Holtmann timeo = msecs_to_jiffies(10); 7055a9d0a3fSWaldemar Rymarkiewicz } 706716e4ab5SAndrei Emeltchenko break; 707716e4ab5SAndrei Emeltchenko 708716e4ab5SAndrei Emeltchenko case AMP_LINK: 709716e4ab5SAndrei Emeltchenko timeo = conn->disc_timeout; 710716e4ab5SAndrei Emeltchenko break; 711716e4ab5SAndrei Emeltchenko 712716e4ab5SAndrei Emeltchenko default: 71304837f64SMarcel Holtmann timeo = msecs_to_jiffies(10); 714716e4ab5SAndrei Emeltchenko break; 7155a9d0a3fSWaldemar Rymarkiewicz } 716716e4ab5SAndrei Emeltchenko 7172f304d1eSAndre Guedes cancel_delayed_work(&conn->disc_work); 71819c40e3bSGustavo F. Padovan queue_delayed_work(conn->hdev->workqueue, 7191931782bSVinicius Costa Gomes &conn->disc_work, timeo); 7201da177e4SLinus Torvalds } 7211da177e4SLinus Torvalds } 7221da177e4SLinus Torvalds 7231da177e4SLinus Torvalds /* ----- HCI Devices ----- */ 724dc946bd8SDavid Herrmann static inline void hci_dev_put(struct hci_dev *d) 7251da177e4SLinus Torvalds { 726376261aeSAndrei Emeltchenko BT_DBG("%s orig refcnt %d", d->name, 727376261aeSAndrei Emeltchenko atomic_read(&d->dev.kobj.kref.refcount)); 728376261aeSAndrei Emeltchenko 7294c724c71SDavid Herrmann put_device(&d->dev); 730010666a1SDavid Herrmann } 7311da177e4SLinus Torvalds 732dc946bd8SDavid Herrmann static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 7331da177e4SLinus Torvalds { 734376261aeSAndrei Emeltchenko BT_DBG("%s orig refcnt %d", d->name, 735376261aeSAndrei Emeltchenko atomic_read(&d->dev.kobj.kref.refcount)); 736376261aeSAndrei Emeltchenko 7374c724c71SDavid Herrmann get_device(&d->dev); 7381da177e4SLinus Torvalds return d; 7391da177e4SLinus Torvalds } 7401da177e4SLinus Torvalds 74109fd0de5SGustavo F. Padovan #define hci_dev_lock(d) mutex_lock(&d->lock) 74209fd0de5SGustavo F. Padovan #define hci_dev_unlock(d) mutex_unlock(&d->lock) 7431da177e4SLinus Torvalds 744aa2b86d7SDavid Herrmann #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 7453dc07322SDavid Herrmann #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 746aa2b86d7SDavid Herrmann 747155961e8SDavid Herrmann static inline void *hci_get_drvdata(struct hci_dev *hdev) 748155961e8SDavid Herrmann { 749155961e8SDavid Herrmann return dev_get_drvdata(&hdev->dev); 750155961e8SDavid Herrmann } 751155961e8SDavid Herrmann 752155961e8SDavid Herrmann static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 753155961e8SDavid Herrmann { 754155961e8SDavid Herrmann dev_set_drvdata(&hdev->dev, data); 755155961e8SDavid Herrmann } 756155961e8SDavid Herrmann 7571da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index); 7580c0afedfSJohan Hedberg struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); 7591da177e4SLinus Torvalds 7601da177e4SLinus Torvalds struct hci_dev *hci_alloc_dev(void); 7611da177e4SLinus Torvalds void hci_free_dev(struct hci_dev *hdev); 7621da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev); 76359735631SDavid Herrmann void hci_unregister_dev(struct hci_dev *hdev); 7641da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev); 7651da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev); 7661da177e4SLinus Torvalds int hci_dev_open(__u16 dev); 7671da177e4SLinus Torvalds int hci_dev_close(__u16 dev); 7681da177e4SLinus Torvalds int hci_dev_reset(__u16 dev); 7691da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev); 7701da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg); 7711da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg); 7721da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg); 7731da177e4SLinus Torvalds int hci_get_conn_list(void __user *arg); 7741da177e4SLinus Torvalds int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 77540be492fSMarcel Holtmann int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 7761da177e4SLinus Torvalds int hci_inquiry(void __user *arg); 7771da177e4SLinus Torvalds 778c3c7ea65SGustavo Padovan struct bdaddr_list *hci_blacklist_lookup(struct hci_dev *hdev, 779b9ee0a78SMarcel Holtmann bdaddr_t *bdaddr, u8 type); 78035f7498aSJohan Hedberg void hci_blacklist_clear(struct hci_dev *hdev); 78188c1fe4bSJohan Hedberg int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 78288c1fe4bSJohan Hedberg int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 783f0358568SJohan Hedberg 78415819a70SAndre Guedes struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 78515819a70SAndre Guedes bdaddr_t *addr, u8 addr_type); 78615819a70SAndre Guedes void hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type, 78715819a70SAndre Guedes u16 conn_min_interval, u16 conn_max_interval); 78815819a70SAndre Guedes void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 78915819a70SAndre Guedes void hci_conn_params_clear(struct hci_dev *hdev); 79015819a70SAndre Guedes 79135f7498aSJohan Hedberg void hci_uuids_clear(struct hci_dev *hdev); 7922aeb9a1aSJohan Hedberg 79335f7498aSJohan Hedberg void hci_link_keys_clear(struct hci_dev *hdev); 79455ed8ca1SJohan Hedberg struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 795d25e28abSJohan Hedberg int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, 796d25e28abSJohan Hedberg bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); 79798a0b845SJohan Hedberg struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, u8 rand[8], 79898a0b845SJohan Hedberg bool master); 799ca9142b8SJohan Hedberg struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 80035d70271SJohan Hedberg u8 addr_type, u8 type, u8 authenticated, 80135d70271SJohan Hedberg u8 tk[16], u8 enc_size, __le16 ediv, u8 rand[8]); 802c9839a11SVinicius Costa Gomes struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 80398a0b845SJohan Hedberg u8 addr_type, bool master); 804e0b2b27eSJohan Hedberg int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 80535f7498aSJohan Hedberg void hci_smp_ltks_clear(struct hci_dev *hdev); 80655ed8ca1SJohan Hedberg int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 80755ed8ca1SJohan Hedberg 808970c4e46SJohan Hedberg struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 809970c4e46SJohan Hedberg struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 810970c4e46SJohan Hedberg u8 addr_type); 811ca9142b8SJohan Hedberg struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 812ca9142b8SJohan Hedberg u8 addr_type, u8 val[16], bdaddr_t *rpa); 813a7ec7338SJohan Hedberg void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 814970c4e46SJohan Hedberg void hci_smp_irks_clear(struct hci_dev *hdev); 815970c4e46SJohan Hedberg 81635f7498aSJohan Hedberg void hci_remote_oob_data_clear(struct hci_dev *hdev); 8172763eda6SSzymon Janc struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 8182763eda6SSzymon Janc bdaddr_t *bdaddr); 8190798872eSMarcel Holtmann int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 8200798872eSMarcel Holtmann u8 *hash, u8 *randomizer); 8210798872eSMarcel Holtmann int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 8220798872eSMarcel Holtmann u8 *hash192, u8 *randomizer192, 8230798872eSMarcel Holtmann u8 *hash256, u8 *randomizer256); 8242763eda6SSzymon Janc int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); 8252763eda6SSzymon Janc 8261da177e4SLinus Torvalds void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 8271da177e4SLinus Torvalds 828e1a26170SMarcel Holtmann int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 829ef222013SMarcel Holtmann int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); 83099811510SSuraj Sumangala int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); 831ef222013SMarcel Holtmann 8320ac7e700SDavid Herrmann void hci_init_sysfs(struct hci_dev *hdev); 833a67e899cSMarcel Holtmann void hci_conn_init_sysfs(struct hci_conn *conn); 834b219e3acSMarcel Holtmann void hci_conn_add_sysfs(struct hci_conn *conn); 835b219e3acSMarcel Holtmann void hci_conn_del_sysfs(struct hci_conn *conn); 8361da177e4SLinus Torvalds 8376935e0f5SDavid Herrmann #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 8381da177e4SLinus Torvalds 8391da177e4SLinus Torvalds /* ----- LMP capabilities ----- */ 840cad718edSJohan Hedberg #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 841cad718edSJohan Hedberg #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 842cad718edSJohan Hedberg #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 843cad718edSJohan Hedberg #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 844cad718edSJohan Hedberg #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 845cad718edSJohan Hedberg #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 846cad718edSJohan Hedberg #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 847cad718edSJohan Hedberg #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 848cad718edSJohan Hedberg #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 849cad718edSJohan Hedberg #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 850cad718edSJohan Hedberg #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 851cad718edSJohan Hedberg #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 852cad718edSJohan Hedberg #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 853cad718edSJohan Hedberg #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 854cad718edSJohan Hedberg #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 855cad718edSJohan Hedberg #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 856cad718edSJohan Hedberg #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 857cad718edSJohan Hedberg #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 85807a5c61eSFrédéric Dalleau #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 8591da177e4SLinus Torvalds 860eead27daSAndre Guedes /* ----- Extended LMP capabilities ----- */ 86153b834d2SMarcel Holtmann #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) 86253b834d2SMarcel Holtmann #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) 86353b834d2SMarcel Holtmann #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 86453b834d2SMarcel Holtmann #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 865d5991585SMarcel Holtmann #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 866d5991585SMarcel Holtmann #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 86753b834d2SMarcel Holtmann 86853b834d2SMarcel Holtmann /* ----- Host capabilities ----- */ 869cad718edSJohan Hedberg #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 870d5991585SMarcel Holtmann #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 871cad718edSJohan Hedberg #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 872cad718edSJohan Hedberg #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 873eead27daSAndre Guedes 8741da177e4SLinus Torvalds /* ----- HCI protocols ----- */ 87520714bfeSFrédéric Dalleau #define HCI_PROTO_DEFER 0x01 87620714bfeSFrédéric Dalleau 8775a9d0a3fSWaldemar Rymarkiewicz static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 87820714bfeSFrédéric Dalleau __u8 type, __u8 *flags) 8791da177e4SLinus Torvalds { 880686ebf28SUlisses Furquim switch (type) { 881686ebf28SUlisses Furquim case ACL_LINK: 882686ebf28SUlisses Furquim return l2cap_connect_ind(hdev, bdaddr); 8831da177e4SLinus Torvalds 884686ebf28SUlisses Furquim case SCO_LINK: 885686ebf28SUlisses Furquim case ESCO_LINK: 88620714bfeSFrédéric Dalleau return sco_connect_ind(hdev, bdaddr, flags); 8871da177e4SLinus Torvalds 888686ebf28SUlisses Furquim default: 889686ebf28SUlisses Furquim BT_ERR("unknown link type %d", type); 890686ebf28SUlisses Furquim return -EINVAL; 891686ebf28SUlisses Furquim } 8921da177e4SLinus Torvalds } 8931da177e4SLinus Torvalds 8941da177e4SLinus Torvalds static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) 8951da177e4SLinus Torvalds { 896686ebf28SUlisses Furquim switch (conn->type) { 897686ebf28SUlisses Furquim case ACL_LINK: 898686ebf28SUlisses Furquim case LE_LINK: 899686ebf28SUlisses Furquim l2cap_connect_cfm(conn, status); 900686ebf28SUlisses Furquim break; 9011da177e4SLinus Torvalds 902686ebf28SUlisses Furquim case SCO_LINK: 903686ebf28SUlisses Furquim case ESCO_LINK: 904686ebf28SUlisses Furquim sco_connect_cfm(conn, status); 905686ebf28SUlisses Furquim break; 9061da177e4SLinus Torvalds 907686ebf28SUlisses Furquim default: 908686ebf28SUlisses Furquim BT_ERR("unknown link type %d", conn->type); 909686ebf28SUlisses Furquim break; 910686ebf28SUlisses Furquim } 911e9a416b5SJohan Hedberg 912e9a416b5SJohan Hedberg if (conn->connect_cfm_cb) 913e9a416b5SJohan Hedberg conn->connect_cfm_cb(conn, status); 9141da177e4SLinus Torvalds } 9151da177e4SLinus Torvalds 9162950f21aSMarcel Holtmann static inline int hci_proto_disconn_ind(struct hci_conn *conn) 9172950f21aSMarcel Holtmann { 918686ebf28SUlisses Furquim if (conn->type != ACL_LINK && conn->type != LE_LINK) 919686ebf28SUlisses Furquim return HCI_ERROR_REMOTE_USER_TERM; 9202950f21aSMarcel Holtmann 921686ebf28SUlisses Furquim return l2cap_disconn_ind(conn); 9222950f21aSMarcel Holtmann } 9232950f21aSMarcel Holtmann 9242950f21aSMarcel Holtmann static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) 9251da177e4SLinus Torvalds { 926686ebf28SUlisses Furquim switch (conn->type) { 927686ebf28SUlisses Furquim case ACL_LINK: 928686ebf28SUlisses Furquim case LE_LINK: 929686ebf28SUlisses Furquim l2cap_disconn_cfm(conn, reason); 930686ebf28SUlisses Furquim break; 9311da177e4SLinus Torvalds 932686ebf28SUlisses Furquim case SCO_LINK: 933686ebf28SUlisses Furquim case ESCO_LINK: 934686ebf28SUlisses Furquim sco_disconn_cfm(conn, reason); 935686ebf28SUlisses Furquim break; 9361da177e4SLinus Torvalds 937bd1eb66bSAndrei Emeltchenko /* L2CAP would be handled for BREDR chan */ 938bd1eb66bSAndrei Emeltchenko case AMP_LINK: 939bd1eb66bSAndrei Emeltchenko break; 940bd1eb66bSAndrei Emeltchenko 941686ebf28SUlisses Furquim default: 942686ebf28SUlisses Furquim BT_ERR("unknown link type %d", conn->type); 943686ebf28SUlisses Furquim break; 944686ebf28SUlisses Furquim } 945e9a416b5SJohan Hedberg 946e9a416b5SJohan Hedberg if (conn->disconn_cfm_cb) 947e9a416b5SJohan Hedberg conn->disconn_cfm_cb(conn, reason); 9481da177e4SLinus Torvalds } 9491da177e4SLinus Torvalds 9501da177e4SLinus Torvalds static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) 9511da177e4SLinus Torvalds { 9528c1b2355SMarcel Holtmann __u8 encrypt; 9538c1b2355SMarcel Holtmann 954686ebf28SUlisses Furquim if (conn->type != ACL_LINK && conn->type != LE_LINK) 955686ebf28SUlisses Furquim return; 956686ebf28SUlisses Furquim 95751a8efd7SJohan Hedberg if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 9588c1b2355SMarcel Holtmann return; 9598c1b2355SMarcel Holtmann 9608c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 961686ebf28SUlisses Furquim l2cap_security_cfm(conn, status, encrypt); 962e9a416b5SJohan Hedberg 963e9a416b5SJohan Hedberg if (conn->security_cfm_cb) 964e9a416b5SJohan Hedberg conn->security_cfm_cb(conn, status); 9651da177e4SLinus Torvalds } 9661da177e4SLinus Torvalds 9675a9d0a3fSWaldemar Rymarkiewicz static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, 9685a9d0a3fSWaldemar Rymarkiewicz __u8 encrypt) 9691da177e4SLinus Torvalds { 970686ebf28SUlisses Furquim if (conn->type != ACL_LINK && conn->type != LE_LINK) 971686ebf28SUlisses Furquim return; 9721da177e4SLinus Torvalds 973686ebf28SUlisses Furquim l2cap_security_cfm(conn, status, encrypt); 974e9a416b5SJohan Hedberg 975e9a416b5SJohan Hedberg if (conn->security_cfm_cb) 976e9a416b5SJohan Hedberg conn->security_cfm_cb(conn, status); 9771da177e4SLinus Torvalds } 9781da177e4SLinus Torvalds 9791da177e4SLinus Torvalds /* ----- HCI callbacks ----- */ 9801da177e4SLinus Torvalds struct hci_cb { 9811da177e4SLinus Torvalds struct list_head list; 9821da177e4SLinus Torvalds 9831da177e4SLinus Torvalds char *name; 9841da177e4SLinus Torvalds 9855a9d0a3fSWaldemar Rymarkiewicz void (*security_cfm) (struct hci_conn *conn, __u8 status, 9865a9d0a3fSWaldemar Rymarkiewicz __u8 encrypt); 9871da177e4SLinus Torvalds void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 9881da177e4SLinus Torvalds void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 9891da177e4SLinus Torvalds }; 9901da177e4SLinus Torvalds 9911da177e4SLinus Torvalds static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 9921da177e4SLinus Torvalds { 993711584eaSDenis Kirjanov struct hci_cb *cb; 9948c1b2355SMarcel Holtmann __u8 encrypt; 9951da177e4SLinus Torvalds 9961da177e4SLinus Torvalds hci_proto_auth_cfm(conn, status); 9971da177e4SLinus Torvalds 99851a8efd7SJohan Hedberg if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 9998c1b2355SMarcel Holtmann return; 10008c1b2355SMarcel Holtmann 10018c1b2355SMarcel Holtmann encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; 10028c1b2355SMarcel Holtmann 1003f20d09d5SGustavo F. Padovan read_lock(&hci_cb_list_lock); 1004711584eaSDenis Kirjanov list_for_each_entry(cb, &hci_cb_list, list) { 10058c1b2355SMarcel Holtmann if (cb->security_cfm) 10068c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 10071da177e4SLinus Torvalds } 1008f20d09d5SGustavo F. Padovan read_unlock(&hci_cb_list_lock); 10091da177e4SLinus Torvalds } 10101da177e4SLinus Torvalds 10115a9d0a3fSWaldemar Rymarkiewicz static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, 10125a9d0a3fSWaldemar Rymarkiewicz __u8 encrypt) 10131da177e4SLinus Torvalds { 1014711584eaSDenis Kirjanov struct hci_cb *cb; 10151da177e4SLinus Torvalds 1016435fef20SMarcel Holtmann if (conn->sec_level == BT_SECURITY_SDP) 1017435fef20SMarcel Holtmann conn->sec_level = BT_SECURITY_LOW; 1018435fef20SMarcel Holtmann 101988167aedSVinicius Costa Gomes if (conn->pending_sec_level > conn->sec_level) 102088167aedSVinicius Costa Gomes conn->sec_level = conn->pending_sec_level; 102188167aedSVinicius Costa Gomes 10229719f8afSMarcel Holtmann hci_proto_encrypt_cfm(conn, status, encrypt); 10231da177e4SLinus Torvalds 1024f20d09d5SGustavo F. Padovan read_lock(&hci_cb_list_lock); 1025711584eaSDenis Kirjanov list_for_each_entry(cb, &hci_cb_list, list) { 10268c1b2355SMarcel Holtmann if (cb->security_cfm) 10278c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 10281da177e4SLinus Torvalds } 1029f20d09d5SGustavo F. Padovan read_unlock(&hci_cb_list_lock); 10301da177e4SLinus Torvalds } 10311da177e4SLinus Torvalds 10321da177e4SLinus Torvalds static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 10331da177e4SLinus Torvalds { 1034711584eaSDenis Kirjanov struct hci_cb *cb; 10351da177e4SLinus Torvalds 1036f20d09d5SGustavo F. Padovan read_lock(&hci_cb_list_lock); 1037711584eaSDenis Kirjanov list_for_each_entry(cb, &hci_cb_list, list) { 10381da177e4SLinus Torvalds if (cb->key_change_cfm) 10391da177e4SLinus Torvalds cb->key_change_cfm(conn, status); 10401da177e4SLinus Torvalds } 1041f20d09d5SGustavo F. Padovan read_unlock(&hci_cb_list_lock); 10421da177e4SLinus Torvalds } 10431da177e4SLinus Torvalds 10445a9d0a3fSWaldemar Rymarkiewicz static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 10455a9d0a3fSWaldemar Rymarkiewicz __u8 role) 10461da177e4SLinus Torvalds { 1047711584eaSDenis Kirjanov struct hci_cb *cb; 10481da177e4SLinus Torvalds 1049f20d09d5SGustavo F. Padovan read_lock(&hci_cb_list_lock); 1050711584eaSDenis Kirjanov list_for_each_entry(cb, &hci_cb_list, list) { 10511da177e4SLinus Torvalds if (cb->role_switch_cfm) 10521da177e4SLinus Torvalds cb->role_switch_cfm(conn, status, role); 10531da177e4SLinus Torvalds } 1054f20d09d5SGustavo F. Padovan read_unlock(&hci_cb_list_lock); 10551da177e4SLinus Torvalds } 10561da177e4SLinus Torvalds 10576759a675SJohan Hedberg static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) 10586759a675SJohan Hedberg { 105984d9d071SJohan Hedberg size_t parsed = 0; 10606759a675SJohan Hedberg 10616c0c331eSJohan Hedberg if (data_len < 2) 10626c0c331eSJohan Hedberg return false; 10636c0c331eSJohan Hedberg 106484d9d071SJohan Hedberg while (parsed < data_len - 1) { 106584d9d071SJohan Hedberg u8 field_len = data[0]; 10666759a675SJohan Hedberg 10676759a675SJohan Hedberg if (field_len == 0) 10686759a675SJohan Hedberg break; 10696759a675SJohan Hedberg 10706759a675SJohan Hedberg parsed += field_len + 1; 10716759a675SJohan Hedberg 10726759a675SJohan Hedberg if (parsed > data_len) 10736759a675SJohan Hedberg break; 10746759a675SJohan Hedberg 10756759a675SJohan Hedberg if (data[1] == type) 10766759a675SJohan Hedberg return true; 10776759a675SJohan Hedberg 10786759a675SJohan Hedberg data += field_len + 1; 10796759a675SJohan Hedberg } 10806759a675SJohan Hedberg 10816759a675SJohan Hedberg return false; 10826759a675SJohan Hedberg } 10836759a675SJohan Hedberg 1084301cb2d8SJohan Hedberg static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1085301cb2d8SJohan Hedberg { 1086301cb2d8SJohan Hedberg if (addr_type != 0x01) 1087301cb2d8SJohan Hedberg return false; 1088301cb2d8SJohan Hedberg 1089301cb2d8SJohan Hedberg if ((bdaddr->b[5] & 0xc0) == 0x40) 1090301cb2d8SJohan Hedberg return true; 1091301cb2d8SJohan Hedberg 1092301cb2d8SJohan Hedberg return false; 1093301cb2d8SJohan Hedberg } 1094301cb2d8SJohan Hedberg 10952426f3a5SJohan Hedberg static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 10962426f3a5SJohan Hedberg bdaddr_t *bdaddr, u8 addr_type) 10972426f3a5SJohan Hedberg { 10982426f3a5SJohan Hedberg if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 10992426f3a5SJohan Hedberg return NULL; 11002426f3a5SJohan Hedberg 11012426f3a5SJohan Hedberg return hci_find_irk_by_rpa(hdev, bdaddr); 11022426f3a5SJohan Hedberg } 11032426f3a5SJohan Hedberg 11041da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *hcb); 11051da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *hcb); 11061da177e4SLinus Torvalds 11073119ae95SJohan Hedberg struct hci_request { 11083119ae95SJohan Hedberg struct hci_dev *hdev; 11093119ae95SJohan Hedberg struct sk_buff_head cmd_q; 11105d73e034SAndre Guedes 11115d73e034SAndre Guedes /* If something goes wrong when building the HCI request, the error 11125d73e034SAndre Guedes * value is stored in this field. 11135d73e034SAndre Guedes */ 11145d73e034SAndre Guedes int err; 11153119ae95SJohan Hedberg }; 11163119ae95SJohan Hedberg 11173119ae95SJohan Hedberg void hci_req_init(struct hci_request *req, struct hci_dev *hdev); 11183119ae95SJohan Hedberg int hci_req_run(struct hci_request *req, hci_req_complete_t complete); 111907dc93ddSJohan Hedberg void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, 112007dc93ddSJohan Hedberg const void *param); 112107dc93ddSJohan Hedberg void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, 112207dc93ddSJohan Hedberg const void *param, u8 event); 11239238f36aSJohan Hedberg void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); 11243119ae95SJohan Hedberg 112575e84b7cSJohan Hedberg struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 112607dc93ddSJohan Hedberg const void *param, u32 timeout); 11277b1abbbeSJohan Hedberg struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, 112807dc93ddSJohan Hedberg const void *param, u8 event, u32 timeout); 112975e84b7cSJohan Hedberg 113007dc93ddSJohan Hedberg int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 113107dc93ddSJohan Hedberg const void *param); 113273d80debSLuiz Augusto von Dentz void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 11330d861d8bSGustavo F. Padovan void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 11341da177e4SLinus Torvalds 1135a9de9248SMarcel Holtmann void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 11361da177e4SLinus Torvalds 11371da177e4SLinus Torvalds /* ----- HCI Sockets ----- */ 1138470fe1b5SMarcel Holtmann void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 1139470fe1b5SMarcel Holtmann void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); 1140cd82e61cSMarcel Holtmann void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 11411da177e4SLinus Torvalds 1142040030efSMarcel Holtmann void hci_sock_dev_event(struct hci_dev *hdev, int event); 1143040030efSMarcel Holtmann 11440381101fSJohan Hedberg /* Management interface */ 1145591f47f3SAndre Guedes #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1146591f47f3SAndre Guedes #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1147591f47f3SAndre Guedes BIT(BDADDR_LE_RANDOM)) 1148591f47f3SAndre Guedes #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1149591f47f3SAndre Guedes BIT(BDADDR_LE_PUBLIC) | \ 1150591f47f3SAndre Guedes BIT(BDADDR_LE_RANDOM)) 1151f39799f5SAndre Guedes 11520d8cc935SAndre Guedes /* These LE scan and inquiry parameters were chosen according to LE General 11530d8cc935SAndre Guedes * Discovery Procedure specification. 11540d8cc935SAndre Guedes */ 11550d8cc935SAndre Guedes #define DISCOV_LE_SCAN_WIN 0x12 11560d8cc935SAndre Guedes #define DISCOV_LE_SCAN_INT 0x12 11570d8cc935SAndre Guedes #define DISCOV_LE_TIMEOUT msecs_to_jiffies(10240) 11580d8cc935SAndre Guedes #define DISCOV_INTERLEAVED_TIMEOUT msecs_to_jiffies(5120) 11590d8cc935SAndre Guedes #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 11600d8cc935SAndre Guedes #define DISCOV_BREDR_INQUIRY_LEN 0x08 11610d8cc935SAndre Guedes 11620381101fSJohan Hedberg int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); 1163bf6b56dbSMarcel Holtmann void mgmt_index_added(struct hci_dev *hdev); 1164bf6b56dbSMarcel Holtmann void mgmt_index_removed(struct hci_dev *hdev); 11653eec705eSMarcel Holtmann void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 1166744cf19eSJohan Hedberg int mgmt_powered(struct hci_dev *hdev, u8 powered); 1167d1967ff8SMarcel Holtmann void mgmt_discoverable_timeout(struct hci_dev *hdev); 116886a75645SMarcel Holtmann void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); 1169a330916cSMarcel Holtmann void mgmt_connectable(struct hci_dev *hdev, u8 connectable); 11704796e8afSMarcel Holtmann void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); 1171dc4a5ee2SMarcel Holtmann void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1172745c0ce3SVishal Agarwal bool persistent); 1173ecd90ae7SMarcel Holtmann void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 117404124681SGustavo F. Padovan u8 addr_type, u32 flags, u8 *name, u8 name_len, 117504124681SGustavo F. Padovan u8 *dev_class); 11769b80ec5eSMarcel Holtmann void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 1177f0d6a0eaSMikel Astiz u8 link_type, u8 addr_type, u8 reason); 11787892924cSMarcel Holtmann void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 117988c3df13SJohan Hedberg u8 link_type, u8 addr_type, u8 status); 1180445608d0SMarcel Holtmann void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 118148264f06SJohan Hedberg u8 addr_type, u8 status); 1182ce0e4a0dSMarcel Holtmann void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1183e669cf80SMarcel Holtmann void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1184c35938b2SSzymon Janc u8 status); 11853eb38528SMarcel Holtmann void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1186744cf19eSJohan Hedberg u8 status); 1187744cf19eSJohan Hedberg int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1188272d90dfSJohan Hedberg u8 link_type, u8 addr_type, __le32 value, 1189272d90dfSJohan Hedberg u8 confirm_hint); 1190744cf19eSJohan Hedberg int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1191272d90dfSJohan Hedberg u8 link_type, u8 addr_type, u8 status); 1192272d90dfSJohan Hedberg int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1193272d90dfSJohan Hedberg u8 link_type, u8 addr_type, u8 status); 1194272d90dfSJohan Hedberg int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1195272d90dfSJohan Hedberg u8 link_type, u8 addr_type); 1196604086b7SBrian Gix int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1197272d90dfSJohan Hedberg u8 link_type, u8 addr_type, u8 status); 1198272d90dfSJohan Hedberg int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1199272d90dfSJohan Hedberg u8 link_type, u8 addr_type, u8 status); 120092a25256SJohan Hedberg int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 120192a25256SJohan Hedberg u8 link_type, u8 addr_type, u32 passkey, 120292a25256SJohan Hedberg u8 entered); 1203e546099cSMarcel Holtmann void mgmt_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1204bab73cb6SJohan Hedberg u8 addr_type, u8 status); 1205464996aeSMarcel Holtmann void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 12063e248560SMarcel Holtmann void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 1207eac83dc6SMarcel Holtmann void mgmt_sc_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 12084e1b0245SMarcel Holtmann void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 12097f9a903cSMarcel Holtmann u8 status); 12107667da34SMarcel Holtmann void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 12114d2d2796SMarcel Holtmann void mgmt_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192, 12124d2d2796SMarcel Holtmann u8 *randomizer192, u8 *hash256, 12134d2d2796SMarcel Holtmann u8 *randomizer256, u8 status); 1214901801b9SMarcel Holtmann void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 121504124681SGustavo F. Padovan u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, 121604124681SGustavo F. Padovan u8 ssp, u8 *eir, u16 eir_len); 12179cf12aeeSMarcel Holtmann void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1218b644ba33SJohan Hedberg u8 addr_type, s8 rssi, u8 *name, u8 name_len); 12192f1e063bSMarcel Holtmann void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 122088c1fe4bSJohan Hedberg int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 122188c1fe4bSJohan Hedberg int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 1222ba74b666SJohan Hedberg void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key); 122395fbac8aSJohan Hedberg void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk); 12245976e608SMarcel Holtmann void mgmt_reenable_advertising(struct hci_dev *hdev); 1225f4a407beSJohan Hedberg void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1226346af67bSVinicius Costa Gomes 12271da177e4SLinus Torvalds /* HCI info for socket */ 12281da177e4SLinus Torvalds #define hci_pi(sk) ((struct hci_pinfo *) sk) 12291da177e4SLinus Torvalds 12301da177e4SLinus Torvalds struct hci_pinfo { 12311da177e4SLinus Torvalds struct bt_sock bt; 12321da177e4SLinus Torvalds struct hci_dev *hdev; 12331da177e4SLinus Torvalds struct hci_filter filter; 12341da177e4SLinus Torvalds __u32 cmsg_mask; 1235c02178d2SJohan Hedberg unsigned short channel; 12361da177e4SLinus Torvalds }; 12371da177e4SLinus Torvalds 12381da177e4SLinus Torvalds /* HCI security filter */ 12391da177e4SLinus Torvalds #define HCI_SFLT_MAX_OGF 5 12401da177e4SLinus Torvalds 12411da177e4SLinus Torvalds struct hci_sec_filter { 12421da177e4SLinus Torvalds __u32 type_mask; 12431da177e4SLinus Torvalds __u32 event_mask[2]; 12441da177e4SLinus Torvalds __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; 12451da177e4SLinus Torvalds }; 12461da177e4SLinus Torvalds 12471da177e4SLinus Torvalds /* ----- HCI requests ----- */ 12481da177e4SLinus Torvalds #define HCI_REQ_DONE 0 12491da177e4SLinus Torvalds #define HCI_REQ_PEND 1 12501da177e4SLinus Torvalds #define HCI_REQ_CANCELED 2 12511da177e4SLinus Torvalds 1252a6a67efdSThomas Gleixner #define hci_req_lock(d) mutex_lock(&d->req_lock) 1253a6a67efdSThomas Gleixner #define hci_req_unlock(d) mutex_unlock(&d->req_lock) 12541da177e4SLinus Torvalds 12552ce603ebSClaudio Takahasi void hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, 12562ce603ebSClaudio Takahasi u16 latency, u16 to_multiplier); 1257a7a595f6SVinicius Costa Gomes void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __u8 rand[8], 1258a7a595f6SVinicius Costa Gomes __u8 ltk[16]); 12592519a1fcSAndre Guedes 12605d4d62f6SFrédéric Dalleau #define SCO_AIRMODE_MASK 0x0003 12615d4d62f6SFrédéric Dalleau #define SCO_AIRMODE_CVSD 0x0000 12625d4d62f6SFrédéric Dalleau #define SCO_AIRMODE_TRANSP 0x0003 12635d4d62f6SFrédéric Dalleau 12641da177e4SLinus Torvalds #endif /* __HCI_CORE_H */ 1265