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 286d5d2ee6SHeiner Kallweit #include <linux/leds.h> 29b2d09103SIngo Molnar #include <linux/rculist.h> 30b2d09103SIngo Molnar 311da177e4SLinus Torvalds #include <net/bluetooth/hci.h> 32f49daa81SMarcel Holtmann #include <net/bluetooth/hci_sock.h> 331da177e4SLinus Torvalds 345e59b791SLuiz Augusto von Dentz /* HCI priority */ 355e59b791SLuiz Augusto von Dentz #define HCI_PRIO_MAX 7 365e59b791SLuiz Augusto von Dentz 371da177e4SLinus Torvalds /* HCI Core structures */ 381da177e4SLinus Torvalds struct inquiry_data { 391da177e4SLinus Torvalds bdaddr_t bdaddr; 401da177e4SLinus Torvalds __u8 pscan_rep_mode; 411da177e4SLinus Torvalds __u8 pscan_period_mode; 421da177e4SLinus Torvalds __u8 pscan_mode; 431da177e4SLinus Torvalds __u8 dev_class[3]; 441ebb9252SMarcel Holtmann __le16 clock_offset; 451da177e4SLinus Torvalds __s8 rssi; 4641a96212SMarcel Holtmann __u8 ssp_mode; 471da177e4SLinus Torvalds }; 481da177e4SLinus Torvalds 491da177e4SLinus Torvalds struct inquiry_entry { 50561aafbcSJohan Hedberg struct list_head all; /* inq_cache.all */ 51561aafbcSJohan Hedberg struct list_head list; /* unknown or resolve */ 52561aafbcSJohan Hedberg enum { 53561aafbcSJohan Hedberg NAME_NOT_KNOWN, 54561aafbcSJohan Hedberg NAME_NEEDED, 55561aafbcSJohan Hedberg NAME_PENDING, 56561aafbcSJohan Hedberg NAME_KNOWN, 57561aafbcSJohan Hedberg } name_state; 581da177e4SLinus Torvalds __u32 timestamp; 591da177e4SLinus Torvalds struct inquiry_data data; 601da177e4SLinus Torvalds }; 611da177e4SLinus Torvalds 6230883512SJohan Hedberg struct discovery_state { 634aab14e5SAndre Guedes int type; 64ff9ef578SJohan Hedberg enum { 65ff9ef578SJohan Hedberg DISCOVERY_STOPPED, 66ff9ef578SJohan Hedberg DISCOVERY_STARTING, 67343f935bSAndre Guedes DISCOVERY_FINDING, 6830dc78e1SJohan Hedberg DISCOVERY_RESOLVING, 69ff9ef578SJohan Hedberg DISCOVERY_STOPPING, 70ff9ef578SJohan Hedberg } state; 71561aafbcSJohan Hedberg struct list_head all; /* All devices found during inquiry */ 72561aafbcSJohan Hedberg struct list_head unknown; /* Name state not known */ 73561aafbcSJohan Hedberg struct list_head resolve; /* Name needs to be resolved */ 741da177e4SLinus Torvalds __u32 timestamp; 75b9a6328fSJohan Hedberg bdaddr_t last_adv_addr; 76b9a6328fSJohan Hedberg u8 last_adv_addr_type; 77ff5cd29fSJohan Hedberg s8 last_adv_rssi; 78c70a7e4cSMarcel Holtmann u32 last_adv_flags; 79b9a6328fSJohan Hedberg u8 last_adv_data[HCI_MAX_AD_LENGTH]; 80b9a6328fSJohan Hedberg u8 last_adv_data_len; 81da25cf6aSMarcel Holtmann bool report_invalid_rssi; 8282f8b651SJakub Pawlowski bool result_filtering; 8378b781caSJohan Hedberg bool limited; 8437eab042SJakub Pawlowski s8 rssi; 8537eab042SJakub Pawlowski u16 uuid_count; 8637eab042SJakub Pawlowski u8 (*uuids)[16]; 872d28cfe7SJakub Pawlowski unsigned long scan_start; 882d28cfe7SJakub Pawlowski unsigned long scan_duration; 891da177e4SLinus Torvalds }; 901da177e4SLinus Torvalds 911da177e4SLinus Torvalds struct hci_conn_hash { 921da177e4SLinus Torvalds struct list_head list; 931da177e4SLinus Torvalds unsigned int acl_num; 94bd1eb66bSAndrei Emeltchenko unsigned int amp_num; 951da177e4SLinus Torvalds unsigned int sco_num; 96fcd89c09SVille Tervo unsigned int le_num; 97f8218dc6SJohan Hedberg unsigned int le_num_slave; 981da177e4SLinus Torvalds }; 991da177e4SLinus Torvalds 100f0358568SJohan Hedberg struct bdaddr_list { 101f0358568SJohan Hedberg struct list_head list; 102f0358568SJohan Hedberg bdaddr_t bdaddr; 103b9ee0a78SMarcel Holtmann u8 bdaddr_type; 104f0358568SJohan Hedberg }; 1052aeb9a1aSJohan Hedberg 1062aeb9a1aSJohan Hedberg struct bt_uuid { 1072aeb9a1aSJohan Hedberg struct list_head list; 1082aeb9a1aSJohan Hedberg u8 uuid[16]; 10983be8ecaSJohan Hedberg u8 size; 1101aff6f09SJohan Hedberg u8 svc_hint; 1112aeb9a1aSJohan Hedberg }; 1122aeb9a1aSJohan Hedberg 1137ee4ea36SMarcel Holtmann struct smp_csrk { 1147ee4ea36SMarcel Holtmann bdaddr_t bdaddr; 1157ee4ea36SMarcel Holtmann u8 bdaddr_type; 1164cd3928aSJohan Hedberg u8 type; 1177ee4ea36SMarcel Holtmann u8 val[16]; 1187ee4ea36SMarcel Holtmann }; 1197ee4ea36SMarcel Holtmann 120b899efafSVinicius Costa Gomes struct smp_ltk { 121b899efafSVinicius Costa Gomes struct list_head list; 122970d0f1bSJohan Hedberg struct rcu_head rcu; 123b899efafSVinicius Costa Gomes bdaddr_t bdaddr; 124b899efafSVinicius Costa Gomes u8 bdaddr_type; 125b899efafSVinicius Costa Gomes u8 authenticated; 126b899efafSVinicius Costa Gomes u8 type; 127b899efafSVinicius Costa Gomes u8 enc_size; 128b899efafSVinicius Costa Gomes __le16 ediv; 129fe39c7b2SMarcel Holtmann __le64 rand; 130b899efafSVinicius Costa Gomes u8 val[16]; 13103c515d7SMarcel Holtmann }; 132b899efafSVinicius Costa Gomes 133970c4e46SJohan Hedberg struct smp_irk { 134970c4e46SJohan Hedberg struct list_head list; 135adae20cbSJohan Hedberg struct rcu_head rcu; 136970c4e46SJohan Hedberg bdaddr_t rpa; 137970c4e46SJohan Hedberg bdaddr_t bdaddr; 138970c4e46SJohan Hedberg u8 addr_type; 139970c4e46SJohan Hedberg u8 val[16]; 140970c4e46SJohan Hedberg }; 141970c4e46SJohan Hedberg 14255ed8ca1SJohan Hedberg struct link_key { 14355ed8ca1SJohan Hedberg struct list_head list; 1440378b597SJohan Hedberg struct rcu_head rcu; 14555ed8ca1SJohan Hedberg bdaddr_t bdaddr; 14655ed8ca1SJohan Hedberg u8 type; 1479b3b4460SAndrei Emeltchenko u8 val[HCI_LINK_KEY_SIZE]; 14855ed8ca1SJohan Hedberg u8 pin_len; 14955ed8ca1SJohan Hedberg }; 15055ed8ca1SJohan Hedberg 1512763eda6SSzymon Janc struct oob_data { 1522763eda6SSzymon Janc struct list_head list; 1532763eda6SSzymon Janc bdaddr_t bdaddr; 1546928a924SJohan Hedberg u8 bdaddr_type; 155f7697b16SMarcel Holtmann u8 present; 156519ca9d0SMarcel Holtmann u8 hash192[16]; 15738da1703SJohan Hedberg u8 rand192[16]; 158519ca9d0SMarcel Holtmann u8 hash256[16]; 15938da1703SJohan Hedberg u8 rand256[16]; 1602763eda6SSzymon Janc }; 1612763eda6SSzymon Janc 162203fea01SArman Uguray struct adv_info { 163d2609b34SFlorian Grandel struct list_head list; 164fffd38bcSFlorian Grandel bool pending; 165203fea01SArman Uguray __u8 instance; 166203fea01SArman Uguray __u32 flags; 167912098a6SArman Uguray __u16 timeout; 1685d900e46SFlorian Grandel __u16 remaining_time; 169d2609b34SFlorian Grandel __u16 duration; 170203fea01SArman Uguray __u16 adv_data_len; 171203fea01SArman Uguray __u8 adv_data[HCI_MAX_AD_LENGTH]; 172203fea01SArman Uguray __u16 scan_rsp_len; 173203fea01SArman Uguray __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; 174de181e88SJaganath Kanakkassery __s8 tx_power; 175a73c046aSJaganath Kanakkassery bdaddr_t random_addr; 176a73c046aSJaganath Kanakkassery bool rpa_expired; 177a73c046aSJaganath Kanakkassery struct delayed_work rpa_expired_cb; 178203fea01SArman Uguray }; 179203fea01SArman Uguray 180db25be66SFlorian Grandel #define HCI_MAX_ADV_INSTANCES 5 181d2609b34SFlorian Grandel #define HCI_DEFAULT_ADV_DURATION 2 182d2609b34SFlorian Grandel 183490c5babSJohan Hedberg #define HCI_MAX_SHORT_NAME_LENGTH 10 184490c5babSJohan Hedberg 185d6bfd59cSJohan Hedberg /* Default LE RPA expiry time, 15 minutes */ 186d6bfd59cSJohan Hedberg #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) 187d6bfd59cSJohan Hedberg 18831ad1691SAndrzej Kaczmarek /* Default min/max age of connection information (1s/3s) */ 18931ad1691SAndrzej Kaczmarek #define DEFAULT_CONN_INFO_MIN_AGE 1000 19031ad1691SAndrzej Kaczmarek #define DEFAULT_CONN_INFO_MAX_AGE 3000 19131ad1691SAndrzej Kaczmarek 192903e4541SAndrei Emeltchenko struct amp_assoc { 193903e4541SAndrei Emeltchenko __u16 len; 194903e4541SAndrei Emeltchenko __u16 offset; 19593c284eeSAndrei Emeltchenko __u16 rem_len; 19693c284eeSAndrei Emeltchenko __u16 len_so_far; 197903e4541SAndrei Emeltchenko __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; 198903e4541SAndrei Emeltchenko }; 199903e4541SAndrei Emeltchenko 200d2c5d77fSJohan Hedberg #define HCI_MAX_PAGES 3 201cad718edSJohan Hedberg 2021da177e4SLinus Torvalds struct hci_dev { 2031da177e4SLinus Torvalds struct list_head list; 20409fd0de5SGustavo F. Padovan struct mutex lock; 2051da177e4SLinus Torvalds 2061da177e4SLinus Torvalds char name[8]; 2071da177e4SLinus Torvalds unsigned long flags; 2081da177e4SLinus Torvalds __u16 id; 209c13854ceSMarcel Holtmann __u8 bus; 210943da25dSMarcel Holtmann __u8 dev_type; 2111da177e4SLinus Torvalds bdaddr_t bdaddr; 212e30d3f5fSMarcel Holtmann bdaddr_t setup_addr; 21324c457e2SMarcel Holtmann bdaddr_t public_addr; 2147a4cd51dSMarcel Holtmann bdaddr_t random_addr; 215d13eafceSMarcel Holtmann bdaddr_t static_addr; 21656ed2cb8SJohan Hedberg __u8 adv_addr_type; 2171f6c6378SJohan Hedberg __u8 dev_name[HCI_MAX_NAME_LENGTH]; 218490c5babSJohan Hedberg __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; 21980a1e1dbSJohan Hedberg __u8 eir[HCI_MAX_EIR_LENGTH]; 220c4960ecfSMichał Narajowski __u16 appearance; 221a9de9248SMarcel Holtmann __u8 dev_class[3]; 2221aff6f09SJohan Hedberg __u8 major_class; 2231aff6f09SJohan Hedberg __u8 minor_class; 224d2c5d77fSJohan Hedberg __u8 max_page; 225cad718edSJohan Hedberg __u8 features[HCI_MAX_PAGES][8]; 22660e77321SJohan Hedberg __u8 le_features[8]; 227cf1d081fSJohan Hedberg __u8 le_white_list_size; 228cfdb0c2dSAnkit Navik __u8 le_resolv_list_size; 2296b49bcb4SJaganath Kanakkassery __u8 le_num_of_adv_sets; 2309b008c04SJohan Hedberg __u8 le_states[8]; 231a9de9248SMarcel Holtmann __u8 commands[64]; 2321143e5a6SMarcel Holtmann __u8 hci_ver; 2331143e5a6SMarcel Holtmann __u16 hci_rev; 234d5859e22SJohan Hedberg __u8 lmp_ver; 2351143e5a6SMarcel Holtmann __u16 manufacturer; 2367d69230cSAndrei Emeltchenko __u16 lmp_subver; 2371da177e4SLinus Torvalds __u16 voice_setting; 238b4cb9fb2SMarcel Holtmann __u8 num_iac; 239c2f0f979SMarcel Holtmann __u8 stored_max_keys; 240c2f0f979SMarcel Holtmann __u8 stored_num_keys; 24117fa4b9dSJohan Hedberg __u8 io_capability; 24291c4e9b1SMarcel Holtmann __s8 inq_tx_power; 243f332ec66SJohan Hedberg __u16 page_scan_interval; 244f332ec66SJohan Hedberg __u16 page_scan_window; 245f332ec66SJohan Hedberg __u8 page_scan_type; 2463f959d46SMarcel Holtmann __u8 le_adv_channel_map; 247628531c9SGeorg Lukas __u16 le_adv_min_interval; 248628531c9SGeorg Lukas __u16 le_adv_max_interval; 249533553f8SMarcel Holtmann __u8 le_scan_type; 250bef64738SMarcel Holtmann __u16 le_scan_interval; 251bef64738SMarcel Holtmann __u16 le_scan_window; 2524e70c7e7SMarcel Holtmann __u16 le_conn_min_interval; 2534e70c7e7SMarcel Holtmann __u16 le_conn_max_interval; 25404fb7d90SMarcel Holtmann __u16 le_conn_latency; 25504fb7d90SMarcel Holtmann __u16 le_supv_timeout; 256a8e1bfaaSMarcel Holtmann __u16 le_def_tx_len; 257a8e1bfaaSMarcel Holtmann __u16 le_def_tx_time; 258a8e1bfaaSMarcel Holtmann __u16 le_max_tx_len; 259a8e1bfaaSMarcel Holtmann __u16 le_max_tx_time; 260a8e1bfaaSMarcel Holtmann __u16 le_max_rx_len; 261a8e1bfaaSMarcel Holtmann __u16 le_max_rx_time; 262b9a7a61eSLukasz Rymanowski __u16 discov_interleaved_timeout; 26331ad1691SAndrzej Kaczmarek __u16 conn_info_min_age; 26431ad1691SAndrzej Kaczmarek __u16 conn_info_max_age; 26506f5b778SMarcel Holtmann __u8 ssp_debug_mode; 266c7741d16SMarcel Holtmann __u8 hw_error_code; 26733f35721SJohan Hedberg __u32 clock; 268f332ec66SJohan Hedberg 2692b9be137SMarcel Holtmann __u16 devid_source; 2702b9be137SMarcel Holtmann __u16 devid_vendor; 2712b9be137SMarcel Holtmann __u16 devid_product; 2722b9be137SMarcel Holtmann __u16 devid_version; 2731da177e4SLinus Torvalds 2741da177e4SLinus Torvalds __u16 pkt_type; 2755b7f9909SMarcel Holtmann __u16 esco_type; 2761da177e4SLinus Torvalds __u16 link_policy; 2771da177e4SLinus Torvalds __u16 link_mode; 2781da177e4SLinus Torvalds 27904837f64SMarcel Holtmann __u32 idle_timeout; 28004837f64SMarcel Holtmann __u16 sniff_min_interval; 28104837f64SMarcel Holtmann __u16 sniff_max_interval; 28204837f64SMarcel Holtmann 283928abaa7SAndrei Emeltchenko __u8 amp_status; 284928abaa7SAndrei Emeltchenko __u32 amp_total_bw; 285928abaa7SAndrei Emeltchenko __u32 amp_max_bw; 286928abaa7SAndrei Emeltchenko __u32 amp_min_latency; 287928abaa7SAndrei Emeltchenko __u32 amp_max_pdu; 288928abaa7SAndrei Emeltchenko __u8 amp_type; 289928abaa7SAndrei Emeltchenko __u16 amp_pal_cap; 290928abaa7SAndrei Emeltchenko __u16 amp_assoc_size; 291928abaa7SAndrei Emeltchenko __u32 amp_max_flush_to; 292928abaa7SAndrei Emeltchenko __u32 amp_be_flush_to; 293928abaa7SAndrei Emeltchenko 294903e4541SAndrei Emeltchenko struct amp_assoc loc_assoc; 295903e4541SAndrei Emeltchenko 2961e89cffbSAndrei Emeltchenko __u8 flow_ctl_mode; 2971e89cffbSAndrei Emeltchenko 2989f61656aSJohan Hedberg unsigned int auto_accept_delay; 2999f61656aSJohan Hedberg 3001da177e4SLinus Torvalds unsigned long quirks; 3011da177e4SLinus Torvalds 3021da177e4SLinus Torvalds atomic_t cmd_cnt; 3031da177e4SLinus Torvalds unsigned int acl_cnt; 3041da177e4SLinus Torvalds unsigned int sco_cnt; 3056ed58ec5SVille Tervo unsigned int le_cnt; 3061da177e4SLinus Torvalds 3071da177e4SLinus Torvalds unsigned int acl_mtu; 3081da177e4SLinus Torvalds unsigned int sco_mtu; 3096ed58ec5SVille Tervo unsigned int le_mtu; 3101da177e4SLinus Torvalds unsigned int acl_pkts; 3111da177e4SLinus Torvalds unsigned int sco_pkts; 3126ed58ec5SVille Tervo unsigned int le_pkts; 3131da177e4SLinus Torvalds 314350ee4cfSAndrei Emeltchenko __u16 block_len; 315350ee4cfSAndrei Emeltchenko __u16 block_mtu; 316350ee4cfSAndrei Emeltchenko __u16 num_blocks; 317350ee4cfSAndrei Emeltchenko __u16 block_cnt; 318350ee4cfSAndrei Emeltchenko 3191da177e4SLinus Torvalds unsigned long acl_last_tx; 3201da177e4SLinus Torvalds unsigned long sco_last_tx; 3216ed58ec5SVille Tervo unsigned long le_last_tx; 3221da177e4SLinus Torvalds 3236decb5b4SJaganath Kanakkassery __u8 le_tx_def_phys; 3246decb5b4SJaganath Kanakkassery __u8 le_rx_def_phys; 3256decb5b4SJaganath Kanakkassery 326f48fd9c8SMarcel Holtmann struct workqueue_struct *workqueue; 3276ead1bbcSJohan Hedberg struct workqueue_struct *req_workqueue; 328f48fd9c8SMarcel Holtmann 329ab81cbf9SJohan Hedberg struct work_struct power_on; 3303243553fSJohan Hedberg struct delayed_work power_off; 331c7741d16SMarcel Holtmann struct work_struct error_reset; 332ab81cbf9SJohan Hedberg 33316ab91abSJohan Hedberg __u16 discov_timeout; 33416ab91abSJohan Hedberg struct delayed_work discov_off; 33516ab91abSJohan Hedberg 3367d78525dSJohan Hedberg struct delayed_work service_cache; 3377d78525dSJohan Hedberg 33865cc2b49SMarcel Holtmann struct delayed_work cmd_timer; 339b78752ccSMarcel Holtmann 340b78752ccSMarcel Holtmann struct work_struct rx_work; 341c347b765SGustavo F. Padovan struct work_struct cmd_work; 3423eff45eaSGustavo F. Padovan struct work_struct tx_work; 3431da177e4SLinus Torvalds 344e68f072bSJohan Hedberg struct work_struct discov_update; 3452e93e53bSJohan Hedberg struct work_struct bg_scan_update; 34601b1cb87SJohan Hedberg struct work_struct scan_update; 34753c0ba74SJohan Hedberg struct work_struct connectable_update; 348aed1a885SJohan Hedberg struct work_struct discoverable_update; 3497c1fbed2SJohan Hedberg struct delayed_work le_scan_disable; 3507c1fbed2SJohan Hedberg struct delayed_work le_scan_restart; 3512e93e53bSJohan Hedberg 3521da177e4SLinus Torvalds struct sk_buff_head rx_q; 3531da177e4SLinus Torvalds struct sk_buff_head raw_q; 3541da177e4SLinus Torvalds struct sk_buff_head cmd_q; 3551da177e4SLinus Torvalds 3561da177e4SLinus Torvalds struct sk_buff *sent_cmd; 3571da177e4SLinus Torvalds 358a6a67efdSThomas Gleixner struct mutex req_lock; 3591da177e4SLinus Torvalds wait_queue_head_t req_wait_q; 3601da177e4SLinus Torvalds __u32 req_status; 3611da177e4SLinus Torvalds __u32 req_result; 362f60cb305SJohan Hedberg struct sk_buff *req_skb; 363a5040efaSJohan Hedberg 36470db83c4SJohan Hedberg void *smp_data; 365ef8efe4bSJohan Hedberg void *smp_bredr_data; 3662e58ef3eSJohan Hedberg 36730883512SJohan Hedberg struct discovery_state discovery; 3681da177e4SLinus Torvalds struct hci_conn_hash conn_hash; 3695c136e90SAndre Guedes 3705c136e90SAndre Guedes struct list_head mgmt_pending; 371ea4bd8baSDavid Miller struct list_head blacklist; 3726659358eSJohan Hedberg struct list_head whitelist; 3732aeb9a1aSJohan Hedberg struct list_head uuids; 37455ed8ca1SJohan Hedberg struct list_head link_keys; 375b899efafSVinicius Costa Gomes struct list_head long_term_keys; 376970c4e46SJohan Hedberg struct list_head identity_resolving_keys; 3772763eda6SSzymon Janc struct list_head remote_oob_data; 378d2ab0ac1SMarcel Holtmann struct list_head le_white_list; 379cfdb0c2dSAnkit Navik struct list_head le_resolv_list; 38015819a70SAndre Guedes struct list_head le_conn_params; 38177a77a30SAndre Guedes struct list_head pend_le_conns; 38266f8455aSJohan Hedberg struct list_head pend_le_reports; 3832763eda6SSzymon Janc 3841da177e4SLinus Torvalds struct hci_dev_stats stat; 3851da177e4SLinus Torvalds 3861da177e4SLinus Torvalds atomic_t promisc; 3871da177e4SLinus Torvalds 3885177a838SMarcel Holtmann const char *hw_info; 3895177a838SMarcel Holtmann const char *fw_info; 390ca325f69SMarcel Holtmann struct dentry *debugfs; 391ca325f69SMarcel Holtmann 392a91f2e39SMarcel Holtmann struct device dev; 3931da177e4SLinus Torvalds 394611b30f7SMarcel Holtmann struct rfkill *rfkill; 395611b30f7SMarcel Holtmann 396eacb44dfSMarcel Holtmann DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); 397d23264a8SAndre Guedes 3988fa19098SJohan Hedberg __s8 adv_tx_power; 3993f0f524bSJohan Hedberg __u8 adv_data[HCI_MAX_AD_LENGTH]; 4003f0f524bSJohan Hedberg __u8 adv_data_len; 401f8e808bdSMarcel Holtmann __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; 402f8e808bdSMarcel Holtmann __u8 scan_rsp_data_len; 4038fa19098SJohan Hedberg 404d2609b34SFlorian Grandel struct list_head adv_instances; 405d2609b34SFlorian Grandel unsigned int adv_instance_cnt; 406d2609b34SFlorian Grandel __u8 cur_adv_instance; 4075d900e46SFlorian Grandel __u16 adv_instance_timeout; 4085d900e46SFlorian Grandel struct delayed_work adv_instance_expire; 409203fea01SArman Uguray 410863efaf2SJohan Hedberg __u8 irk[16]; 411d6bfd59cSJohan Hedberg __u32 rpa_timeout; 412d6bfd59cSJohan Hedberg struct delayed_work rpa_expired; 4132b5224dcSMarcel Holtmann bdaddr_t rpa; 414863efaf2SJohan Hedberg 41553f863a6SMarcel Holtmann #if IS_ENABLED(CONFIG_BT_LEDS) 4166d5d2ee6SHeiner Kallweit struct led_trigger *power_led; 41753f863a6SMarcel Holtmann #endif 4186d5d2ee6SHeiner Kallweit 4191da177e4SLinus Torvalds int (*open)(struct hci_dev *hdev); 4201da177e4SLinus Torvalds int (*close)(struct hci_dev *hdev); 4211da177e4SLinus Torvalds int (*flush)(struct hci_dev *hdev); 422f41c70c4SMarcel Holtmann int (*setup)(struct hci_dev *hdev); 423a44fecbdSTedd Ho-Jeong An int (*shutdown)(struct hci_dev *hdev); 4247bd8f09fSMarcel Holtmann int (*send)(struct hci_dev *hdev, struct sk_buff *skb); 4251da177e4SLinus Torvalds void (*notify)(struct hci_dev *hdev, unsigned int evt); 426c7741d16SMarcel Holtmann void (*hw_error)(struct hci_dev *hdev, u8 code); 42798a63aafSMarcel Holtmann int (*post_init)(struct hci_dev *hdev); 4284b4113d6SMarcel Holtmann int (*set_diag)(struct hci_dev *hdev, bool enable); 42924c457e2SMarcel Holtmann int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); 4301da177e4SLinus Torvalds }; 4311da177e4SLinus Torvalds 43253502d69SAndrei Emeltchenko #define HCI_PHY_HANDLE(handle) (handle & 0xff) 43353502d69SAndrei Emeltchenko 4341da177e4SLinus Torvalds struct hci_conn { 4351da177e4SLinus Torvalds struct list_head list; 4361da177e4SLinus Torvalds 4371da177e4SLinus Torvalds atomic_t refcnt; 4381da177e4SLinus Torvalds 4391da177e4SLinus Torvalds bdaddr_t dst; 44029b7988aSAndre Guedes __u8 dst_type; 441662e8820SMarcel Holtmann bdaddr_t src; 442e7c4096eSMarcel Holtmann __u8 src_type; 443cb1d68f7SJohan Hedberg bdaddr_t init_addr; 444cb1d68f7SJohan Hedberg __u8 init_addr_type; 445cb1d68f7SJohan Hedberg bdaddr_t resp_addr; 446cb1d68f7SJohan Hedberg __u8 resp_addr_type; 4471da177e4SLinus Torvalds __u16 handle; 4481da177e4SLinus Torvalds __u16 state; 44904837f64SMarcel Holtmann __u8 mode; 4501da177e4SLinus Torvalds __u8 type; 45140bef302SJohan Hedberg __u8 role; 452a0c808b3SJohan Hedberg bool out; 4534c67bc74SMarcel Holtmann __u8 attempt; 4541da177e4SLinus Torvalds __u8 dev_class[3]; 455cad718edSJohan Hedberg __u8 features[HCI_MAX_PAGES][8]; 456a8746417SMarcel Holtmann __u16 pkt_type; 45704837f64SMarcel Holtmann __u16 link_policy; 45813d39315SWaldemar Rymarkiewicz __u8 key_type; 45940be492fSMarcel Holtmann __u8 auth_type; 4608c1b2355SMarcel Holtmann __u8 sec_level; 461765c2a96SJohan Hedberg __u8 pending_sec_level; 462980e1a53SJohan Hedberg __u8 pin_length; 463726b4ffcSVinicius Costa Gomes __u8 enc_key_size; 46417fa4b9dSJohan Hedberg __u8 io_capability; 46592a25256SJohan Hedberg __u32 passkey_notify; 46692a25256SJohan Hedberg __u8 passkey_entered; 467052b30b0SMarcel Holtmann __u16 disc_timeout; 46809ae260bSJohan Hedberg __u16 conn_timeout; 46910c62ddcSFrédéric Dalleau __u16 setting; 4701e406eefSAndre Guedes __u16 le_conn_min_interval; 4711e406eefSAndre Guedes __u16 le_conn_max_interval; 472e04fde60SMarcel Holtmann __u16 le_conn_interval; 473e04fde60SMarcel Holtmann __u16 le_conn_latency; 474e04fde60SMarcel Holtmann __u16 le_supv_timeout; 475fd45ada9SAlfonso Acosta __u8 le_adv_data[HCI_MAX_AD_LENGTH]; 476fd45ada9SAlfonso Acosta __u8 le_adv_data_len; 4775ae76a94SAndrzej Kaczmarek __s8 rssi; 4785a134faeSAndrzej Kaczmarek __s8 tx_power; 479d0455ed9SAndrzej Kaczmarek __s8 max_tx_power; 48051a8efd7SJohan Hedberg unsigned long flags; 4811da177e4SLinus Torvalds 48233f35721SJohan Hedberg __u32 clock; 48333f35721SJohan Hedberg __u16 clock_accuracy; 48433f35721SJohan Hedberg 485dd983808SAndrzej Kaczmarek unsigned long conn_info_timestamp; 486dd983808SAndrzej Kaczmarek 48703b555e1SJohan Hedberg __u8 remote_cap; 48803b555e1SJohan Hedberg __u8 remote_auth; 4893161ae1cSAndrei Emeltchenko __u8 remote_id; 49003b555e1SJohan Hedberg 4911da177e4SLinus Torvalds unsigned int sent; 4921da177e4SLinus Torvalds 4931da177e4SLinus Torvalds struct sk_buff_head data_q; 4942c33c06aSGustavo F. Padovan struct list_head chan_list; 4951da177e4SLinus Torvalds 49619c40e3bSGustavo F. Padovan struct delayed_work disc_work; 4977bc18d9dSJohan Hedberg struct delayed_work auto_accept_work; 498a74a84f6SJohan Hedberg struct delayed_work idle_work; 4999489eca4SJohan Hedberg struct delayed_work le_conn_timeout; 5008ce783dcSJohan Hedberg struct work_struct le_scan_cleanup; 5011da177e4SLinus Torvalds 502b219e3acSMarcel Holtmann struct device dev; 50323b9ceb7SMarcel Holtmann struct dentry *debugfs; 504b219e3acSMarcel Holtmann 5051da177e4SLinus Torvalds struct hci_dev *hdev; 5061da177e4SLinus Torvalds void *l2cap_data; 5071da177e4SLinus Torvalds void *sco_data; 5089740e49dSAndrei Emeltchenko struct amp_mgr *amp_mgr; 5091da177e4SLinus Torvalds 5101da177e4SLinus Torvalds struct hci_conn *link; 511e9a416b5SJohan Hedberg 512e9a416b5SJohan Hedberg void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); 513e9a416b5SJohan Hedberg void (*security_cfm_cb) (struct hci_conn *conn, u8 status); 514e9a416b5SJohan Hedberg void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); 5151da177e4SLinus Torvalds }; 5161da177e4SLinus Torvalds 51773d80debSLuiz Augusto von Dentz struct hci_chan { 51873d80debSLuiz Augusto von Dentz struct list_head list; 51942c4e53eSAndrei Emeltchenko __u16 handle; 52073d80debSLuiz Augusto von Dentz struct hci_conn *conn; 52173d80debSLuiz Augusto von Dentz struct sk_buff_head data_q; 52273d80debSLuiz Augusto von Dentz unsigned int sent; 523168df8e5SMat Martineau __u8 state; 52473d80debSLuiz Augusto von Dentz }; 52573d80debSLuiz Augusto von Dentz 52615819a70SAndre Guedes struct hci_conn_params { 52715819a70SAndre Guedes struct list_head list; 52893450c75SJohan Hedberg struct list_head action; 52915819a70SAndre Guedes 53015819a70SAndre Guedes bdaddr_t addr; 53115819a70SAndre Guedes u8 addr_type; 53215819a70SAndre Guedes 53315819a70SAndre Guedes u16 conn_min_interval; 53415819a70SAndre Guedes u16 conn_max_interval; 535f044eb05SMarcel Holtmann u16 conn_latency; 536f044eb05SMarcel Holtmann u16 supervision_timeout; 5379fcb18efSAndre Guedes 5389fcb18efSAndre Guedes enum { 5399fcb18efSAndre Guedes HCI_AUTO_CONN_DISABLED, 540a3451d27SJohan Hedberg HCI_AUTO_CONN_REPORT, 5414b9e7e75SMarcel Holtmann HCI_AUTO_CONN_DIRECT, 5429fcb18efSAndre Guedes HCI_AUTO_CONN_ALWAYS, 5439fcb18efSAndre Guedes HCI_AUTO_CONN_LINK_LOSS, 544158e9218SJakub Pawlowski HCI_AUTO_CONN_EXPLICIT, 5459fcb18efSAndre Guedes } auto_connect; 546f161dd41SJohan Hedberg 547f161dd41SJohan Hedberg struct hci_conn *conn; 548158e9218SJakub Pawlowski bool explicit_connect; 54915819a70SAndre Guedes }; 55015819a70SAndre Guedes 5511da177e4SLinus Torvalds extern struct list_head hci_dev_list; 5521da177e4SLinus Torvalds extern struct list_head hci_cb_list; 5531da177e4SLinus Torvalds extern rwlock_t hci_dev_list_lock; 554fba7ecf0SJohan Hedberg extern struct mutex hci_cb_list_lock; 5551da177e4SLinus Torvalds 556eacb44dfSMarcel Holtmann #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) 557eacb44dfSMarcel Holtmann #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) 558eacb44dfSMarcel Holtmann #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) 559eacb44dfSMarcel Holtmann #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) 560eacb44dfSMarcel Holtmann #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) 561eacb44dfSMarcel Holtmann #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) 562eacb44dfSMarcel Holtmann #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) 563d7a5a11dSMarcel Holtmann 564eacb44dfSMarcel Holtmann #define hci_dev_clear_volatile_flags(hdev) \ 565eacb44dfSMarcel Holtmann do { \ 566eacb44dfSMarcel Holtmann hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ 567eacb44dfSMarcel Holtmann hci_dev_clear_flag(hdev, HCI_LE_ADV); \ 568eacb44dfSMarcel Holtmann hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ 569eacb44dfSMarcel Holtmann } while (0) 570516018a9SMarcel Holtmann 571686ebf28SUlisses Furquim /* ----- HCI interface to upper protocols ----- */ 572e74e58f8SJoe Perches int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); 573e74e58f8SJoe Perches int l2cap_disconn_ind(struct hci_conn *hcon); 5749b4c3336SArron Wang void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); 575686ebf28SUlisses Furquim 576ff50e8afSArron Wang #if IS_ENABLED(CONFIG_BT_BREDR) 577e74e58f8SJoe Perches int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); 5789b4c3336SArron Wang void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); 579ff50e8afSArron Wang #else 580ff50e8afSArron Wang static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 581ff50e8afSArron Wang __u8 *flags) 582ff50e8afSArron Wang { 583ff50e8afSArron Wang return 0; 584ff50e8afSArron Wang } 585ff50e8afSArron Wang 586ff50e8afSArron Wang static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) 587ff50e8afSArron Wang { 588ff50e8afSArron Wang } 589ff50e8afSArron Wang #endif 590686ebf28SUlisses Furquim 5911da177e4SLinus Torvalds /* ----- Inquiry cache ----- */ 59270f23020SAndrei Emeltchenko #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ 59370f23020SAndrei Emeltchenko #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ 5941da177e4SLinus Torvalds 59530883512SJohan Hedberg static inline void discovery_init(struct hci_dev *hdev) 5961da177e4SLinus Torvalds { 597ff9ef578SJohan Hedberg hdev->discovery.state = DISCOVERY_STOPPED; 59830883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.all); 59930883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.unknown); 60030883512SJohan Hedberg INIT_LIST_HEAD(&hdev->discovery.resolve); 601da25cf6aSMarcel Holtmann hdev->discovery.report_invalid_rssi = true; 60237eab042SJakub Pawlowski hdev->discovery.rssi = HCI_RSSI_INVALID; 6031da177e4SLinus Torvalds } 6041da177e4SLinus Torvalds 6050256325eSMarcel Holtmann static inline void hci_discovery_filter_clear(struct hci_dev *hdev) 6060256325eSMarcel Holtmann { 60782f8b651SJakub Pawlowski hdev->discovery.result_filtering = false; 608da25cf6aSMarcel Holtmann hdev->discovery.report_invalid_rssi = true; 6090256325eSMarcel Holtmann hdev->discovery.rssi = HCI_RSSI_INVALID; 6100256325eSMarcel Holtmann hdev->discovery.uuid_count = 0; 6110256325eSMarcel Holtmann kfree(hdev->discovery.uuids); 6120256325eSMarcel Holtmann hdev->discovery.uuids = NULL; 6132d28cfe7SJakub Pawlowski hdev->discovery.scan_start = 0; 6142d28cfe7SJakub Pawlowski hdev->discovery.scan_duration = 0; 6150256325eSMarcel Holtmann } 6160256325eSMarcel Holtmann 61730dc78e1SJohan Hedberg bool hci_discovery_active(struct hci_dev *hdev); 61830dc78e1SJohan Hedberg 619ff9ef578SJohan Hedberg void hci_discovery_set_state(struct hci_dev *hdev, int state); 620ff9ef578SJohan Hedberg 6211da177e4SLinus Torvalds static inline int inquiry_cache_empty(struct hci_dev *hdev) 6221da177e4SLinus Torvalds { 62330883512SJohan Hedberg return list_empty(&hdev->discovery.all); 6241da177e4SLinus Torvalds } 6251da177e4SLinus Torvalds 6261da177e4SLinus Torvalds static inline long inquiry_cache_age(struct hci_dev *hdev) 6271da177e4SLinus Torvalds { 62830883512SJohan Hedberg struct discovery_state *c = &hdev->discovery; 6291da177e4SLinus Torvalds return jiffies - c->timestamp; 6301da177e4SLinus Torvalds } 6311da177e4SLinus Torvalds 6321da177e4SLinus Torvalds static inline long inquiry_entry_age(struct inquiry_entry *e) 6331da177e4SLinus Torvalds { 6341da177e4SLinus Torvalds return jiffies - e->timestamp; 6351da177e4SLinus Torvalds } 6361da177e4SLinus Torvalds 6375a9d0a3fSWaldemar Rymarkiewicz struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, 6385a9d0a3fSWaldemar Rymarkiewicz bdaddr_t *bdaddr); 639561aafbcSJohan Hedberg struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, 640561aafbcSJohan Hedberg bdaddr_t *bdaddr); 64130dc78e1SJohan Hedberg struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, 64230dc78e1SJohan Hedberg bdaddr_t *bdaddr, 64330dc78e1SJohan Hedberg int state); 644a3d4e20aSJohan Hedberg void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, 645a3d4e20aSJohan Hedberg struct inquiry_entry *ie); 646af58925cSMarcel Holtmann u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, 647af58925cSMarcel Holtmann bool name_known); 6481f9b9a5dSAndre Guedes void hci_inquiry_cache_flush(struct hci_dev *hdev); 6491da177e4SLinus Torvalds 6501da177e4SLinus Torvalds /* ----- HCI Connections ----- */ 6511da177e4SLinus Torvalds enum { 6521da177e4SLinus Torvalds HCI_CONN_AUTH_PEND, 65319f8def0SWaldemar Rymarkiewicz HCI_CONN_REAUTH_PEND, 6541da177e4SLinus Torvalds HCI_CONN_ENCRYPT_PEND, 65504837f64SMarcel Holtmann HCI_CONN_RSWITCH_PEND, 65604837f64SMarcel Holtmann HCI_CONN_MODE_CHANGE_PEND, 657e73439d8SMarcel Holtmann HCI_CONN_SCO_SETUP_PEND, 658b644ba33SJohan Hedberg HCI_CONN_MGMT_CONNECTED, 65958a681efSJohan Hedberg HCI_CONN_SSP_ENABLED, 660eb9a8f3fSMarcel Holtmann HCI_CONN_SC_ENABLED, 661abf76badSMarcel Holtmann HCI_CONN_AES_CCM, 66258a681efSJohan Hedberg HCI_CONN_POWER_SAVE, 663af6a9c32SJohan Hedberg HCI_CONN_FLUSH_KEY, 6644dae2798SJohan Hedberg HCI_CONN_ENCRYPT, 6654dae2798SJohan Hedberg HCI_CONN_AUTH, 6664dae2798SJohan Hedberg HCI_CONN_SECURE, 6674dae2798SJohan Hedberg HCI_CONN_FIPS, 668fe59a05fSJohan Hedberg HCI_CONN_STK_ENCRYPT, 669977f8fceSJohan Hedberg HCI_CONN_AUTH_INITIATOR, 670f94b665dSJohan Hedberg HCI_CONN_DROP, 67189cbb063SAlfonso Acosta HCI_CONN_PARAM_REMOVAL_PEND, 672fe8bc5acSJohan Hedberg HCI_CONN_NEW_LINK_KEY, 673158e9218SJakub Pawlowski HCI_CONN_SCANNING, 674160b9251SSzymon Janc HCI_CONN_AUTH_FAILURE, 6751da177e4SLinus Torvalds }; 6761da177e4SLinus Torvalds 677aa64a8b5SJohan Hedberg static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) 678aa64a8b5SJohan Hedberg { 679aa64a8b5SJohan Hedberg struct hci_dev *hdev = conn->hdev; 680d7a5a11dSMarcel Holtmann return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && 681c3c7ea65SGustavo Padovan test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); 682aa64a8b5SJohan Hedberg } 683aa64a8b5SJohan Hedberg 684eb9a8f3fSMarcel Holtmann static inline bool hci_conn_sc_enabled(struct hci_conn *conn) 685eb9a8f3fSMarcel Holtmann { 686eb9a8f3fSMarcel Holtmann struct hci_dev *hdev = conn->hdev; 687d7a5a11dSMarcel Holtmann return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && 688eb9a8f3fSMarcel Holtmann test_bit(HCI_CONN_SC_ENABLED, &conn->flags); 689eb9a8f3fSMarcel Holtmann } 690eb9a8f3fSMarcel Holtmann 6911da177e4SLinus Torvalds static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) 6921da177e4SLinus Torvalds { 6931da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 694bf4c6325SGustavo F. Padovan list_add_rcu(&c->list, &h->list); 695fcd89c09SVille Tervo switch (c->type) { 696fcd89c09SVille Tervo case ACL_LINK: 6971da177e4SLinus Torvalds h->acl_num++; 698fcd89c09SVille Tervo break; 699bd1eb66bSAndrei Emeltchenko case AMP_LINK: 700bd1eb66bSAndrei Emeltchenko h->amp_num++; 701bd1eb66bSAndrei Emeltchenko break; 702fcd89c09SVille Tervo case LE_LINK: 703fcd89c09SVille Tervo h->le_num++; 704f8218dc6SJohan Hedberg if (c->role == HCI_ROLE_SLAVE) 705f8218dc6SJohan Hedberg h->le_num_slave++; 706fcd89c09SVille Tervo break; 707fcd89c09SVille Tervo case SCO_LINK: 708fcd89c09SVille Tervo case ESCO_LINK: 7091da177e4SLinus Torvalds h->sco_num++; 710fcd89c09SVille Tervo break; 711fcd89c09SVille Tervo } 7121da177e4SLinus Torvalds } 7131da177e4SLinus Torvalds 7141da177e4SLinus Torvalds static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) 7151da177e4SLinus Torvalds { 7161da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 717bf4c6325SGustavo F. Padovan 718bf4c6325SGustavo F. Padovan list_del_rcu(&c->list); 719bf4c6325SGustavo F. Padovan synchronize_rcu(); 720bf4c6325SGustavo F. Padovan 721fcd89c09SVille Tervo switch (c->type) { 722fcd89c09SVille Tervo case ACL_LINK: 7231da177e4SLinus Torvalds h->acl_num--; 724fcd89c09SVille Tervo break; 725bd1eb66bSAndrei Emeltchenko case AMP_LINK: 726bd1eb66bSAndrei Emeltchenko h->amp_num--; 727bd1eb66bSAndrei Emeltchenko break; 728fcd89c09SVille Tervo case LE_LINK: 729fcd89c09SVille Tervo h->le_num--; 730f8218dc6SJohan Hedberg if (c->role == HCI_ROLE_SLAVE) 731f8218dc6SJohan Hedberg h->le_num_slave--; 732fcd89c09SVille Tervo break; 733fcd89c09SVille Tervo case SCO_LINK: 734fcd89c09SVille Tervo case ESCO_LINK: 7351da177e4SLinus Torvalds h->sco_num--; 736fcd89c09SVille Tervo break; 737fcd89c09SVille Tervo } 7381da177e4SLinus Torvalds } 7391da177e4SLinus Torvalds 74052087a79SLuiz Augusto von Dentz static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) 74152087a79SLuiz Augusto von Dentz { 74252087a79SLuiz Augusto von Dentz struct hci_conn_hash *h = &hdev->conn_hash; 74352087a79SLuiz Augusto von Dentz switch (type) { 74452087a79SLuiz Augusto von Dentz case ACL_LINK: 74552087a79SLuiz Augusto von Dentz return h->acl_num; 746bd1eb66bSAndrei Emeltchenko case AMP_LINK: 747bd1eb66bSAndrei Emeltchenko return h->amp_num; 74852087a79SLuiz Augusto von Dentz case LE_LINK: 74952087a79SLuiz Augusto von Dentz return h->le_num; 75052087a79SLuiz Augusto von Dentz case SCO_LINK: 75152087a79SLuiz Augusto von Dentz case ESCO_LINK: 75252087a79SLuiz Augusto von Dentz return h->sco_num; 75352087a79SLuiz Augusto von Dentz default: 75452087a79SLuiz Augusto von Dentz return 0; 75552087a79SLuiz Augusto von Dentz } 75652087a79SLuiz Augusto von Dentz } 75752087a79SLuiz Augusto von Dentz 758f4f07505SJohan Hedberg static inline unsigned int hci_conn_count(struct hci_dev *hdev) 759f4f07505SJohan Hedberg { 760f4f07505SJohan Hedberg struct hci_conn_hash *c = &hdev->conn_hash; 761f4f07505SJohan Hedberg 762f4f07505SJohan Hedberg return c->acl_num + c->amp_num + c->sco_num + c->le_num; 763f4f07505SJohan Hedberg } 764f4f07505SJohan Hedberg 765845472e8SMarcel Holtmann static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) 766845472e8SMarcel Holtmann { 767845472e8SMarcel Holtmann struct hci_conn_hash *h = &hdev->conn_hash; 768845472e8SMarcel Holtmann struct hci_conn *c; 769845472e8SMarcel Holtmann __u8 type = INVALID_LINK; 770845472e8SMarcel Holtmann 771845472e8SMarcel Holtmann rcu_read_lock(); 772845472e8SMarcel Holtmann 773845472e8SMarcel Holtmann list_for_each_entry_rcu(c, &h->list, list) { 774845472e8SMarcel Holtmann if (c->handle == handle) { 775845472e8SMarcel Holtmann type = c->type; 776845472e8SMarcel Holtmann break; 777845472e8SMarcel Holtmann } 778845472e8SMarcel Holtmann } 779845472e8SMarcel Holtmann 780845472e8SMarcel Holtmann rcu_read_unlock(); 781845472e8SMarcel Holtmann 782845472e8SMarcel Holtmann return type; 783845472e8SMarcel Holtmann } 784845472e8SMarcel Holtmann 7851da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, 7861da177e4SLinus Torvalds __u16 handle) 7871da177e4SLinus Torvalds { 7881da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 7891da177e4SLinus Torvalds struct hci_conn *c; 7901da177e4SLinus Torvalds 791bf4c6325SGustavo F. Padovan rcu_read_lock(); 792bf4c6325SGustavo F. Padovan 793bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 794bf4c6325SGustavo F. Padovan if (c->handle == handle) { 795bf4c6325SGustavo F. Padovan rcu_read_unlock(); 7961da177e4SLinus Torvalds return c; 7971da177e4SLinus Torvalds } 798bf4c6325SGustavo F. Padovan } 799bf4c6325SGustavo F. Padovan rcu_read_unlock(); 800bf4c6325SGustavo F. Padovan 8011da177e4SLinus Torvalds return NULL; 8021da177e4SLinus Torvalds } 8031da177e4SLinus Torvalds 8041da177e4SLinus Torvalds static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, 8051da177e4SLinus Torvalds __u8 type, bdaddr_t *ba) 8061da177e4SLinus Torvalds { 8071da177e4SLinus Torvalds struct hci_conn_hash *h = &hdev->conn_hash; 8081da177e4SLinus Torvalds struct hci_conn *c; 8091da177e4SLinus Torvalds 810bf4c6325SGustavo F. Padovan rcu_read_lock(); 811bf4c6325SGustavo F. Padovan 812bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 813bf4c6325SGustavo F. Padovan if (c->type == type && !bacmp(&c->dst, ba)) { 814bf4c6325SGustavo F. Padovan rcu_read_unlock(); 8151da177e4SLinus Torvalds return c; 8161da177e4SLinus Torvalds } 817bf4c6325SGustavo F. Padovan } 818bf4c6325SGustavo F. Padovan 819bf4c6325SGustavo F. Padovan rcu_read_unlock(); 820bf4c6325SGustavo F. Padovan 8211da177e4SLinus Torvalds return NULL; 8221da177e4SLinus Torvalds } 8231da177e4SLinus Torvalds 8241b51c7b6SJohan Hedberg static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, 8251b51c7b6SJohan Hedberg bdaddr_t *ba, 8261b51c7b6SJohan Hedberg __u8 ba_type) 8271b51c7b6SJohan Hedberg { 8281b51c7b6SJohan Hedberg struct hci_conn_hash *h = &hdev->conn_hash; 8291b51c7b6SJohan Hedberg struct hci_conn *c; 8301b51c7b6SJohan Hedberg 8311b51c7b6SJohan Hedberg rcu_read_lock(); 8321b51c7b6SJohan Hedberg 8331b51c7b6SJohan Hedberg list_for_each_entry_rcu(c, &h->list, list) { 8341b51c7b6SJohan Hedberg if (c->type != LE_LINK) 8351b51c7b6SJohan Hedberg continue; 8361b51c7b6SJohan Hedberg 8371b51c7b6SJohan Hedberg if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { 8381b51c7b6SJohan Hedberg rcu_read_unlock(); 8391b51c7b6SJohan Hedberg return c; 8401b51c7b6SJohan Hedberg } 8411b51c7b6SJohan Hedberg } 8421b51c7b6SJohan Hedberg 8431b51c7b6SJohan Hedberg rcu_read_unlock(); 8441b51c7b6SJohan Hedberg 8451b51c7b6SJohan Hedberg return NULL; 8461b51c7b6SJohan Hedberg } 8471b51c7b6SJohan Hedberg 8484c67bc74SMarcel Holtmann static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, 8494c67bc74SMarcel Holtmann __u8 type, __u16 state) 8504c67bc74SMarcel Holtmann { 8514c67bc74SMarcel Holtmann struct hci_conn_hash *h = &hdev->conn_hash; 8524c67bc74SMarcel Holtmann struct hci_conn *c; 8534c67bc74SMarcel Holtmann 854bf4c6325SGustavo F. Padovan rcu_read_lock(); 855bf4c6325SGustavo F. Padovan 856bf4c6325SGustavo F. Padovan list_for_each_entry_rcu(c, &h->list, list) { 857bf4c6325SGustavo F. Padovan if (c->type == type && c->state == state) { 858bf4c6325SGustavo F. Padovan rcu_read_unlock(); 8594c67bc74SMarcel Holtmann return c; 8604c67bc74SMarcel Holtmann } 861bf4c6325SGustavo F. Padovan } 862bf4c6325SGustavo F. Padovan 863bf4c6325SGustavo F. Padovan rcu_read_unlock(); 864bf4c6325SGustavo F. Padovan 8654c67bc74SMarcel Holtmann return NULL; 8664c67bc74SMarcel Holtmann } 8674c67bc74SMarcel Holtmann 868e7d9ab73SJakub Pawlowski static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) 869e7d9ab73SJakub Pawlowski { 870e7d9ab73SJakub Pawlowski struct hci_conn_hash *h = &hdev->conn_hash; 871e7d9ab73SJakub Pawlowski struct hci_conn *c; 872e7d9ab73SJakub Pawlowski 873e7d9ab73SJakub Pawlowski rcu_read_lock(); 874e7d9ab73SJakub Pawlowski 875e7d9ab73SJakub Pawlowski list_for_each_entry_rcu(c, &h->list, list) { 876e7d9ab73SJakub Pawlowski if (c->type == LE_LINK && c->state == BT_CONNECT && 877e7d9ab73SJakub Pawlowski !test_bit(HCI_CONN_SCANNING, &c->flags)) { 878e7d9ab73SJakub Pawlowski rcu_read_unlock(); 879e7d9ab73SJakub Pawlowski return c; 880e7d9ab73SJakub Pawlowski } 881e7d9ab73SJakub Pawlowski } 882e7d9ab73SJakub Pawlowski 883e7d9ab73SJakub Pawlowski rcu_read_unlock(); 884e7d9ab73SJakub Pawlowski 885e7d9ab73SJakub Pawlowski return NULL; 886e7d9ab73SJakub Pawlowski } 887e7d9ab73SJakub Pawlowski 888e3b679d5SJohan Hedberg int hci_disconnect(struct hci_conn *conn, __u8 reason); 8892dea632fSFrédéric Dalleau bool hci_setup_sync(struct hci_conn *conn, __u16 handle); 890e73439d8SMarcel Holtmann void hci_sco_setup(struct hci_conn *conn, __u8 status); 8911da177e4SLinus Torvalds 892a5c4e309SJohan Hedberg struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, 893a5c4e309SJohan Hedberg u8 role); 8941da177e4SLinus Torvalds int hci_conn_del(struct hci_conn *conn); 8951da177e4SLinus Torvalds void hci_conn_hash_flush(struct hci_dev *hdev); 896a9de9248SMarcel Holtmann void hci_conn_check_pending(struct hci_dev *hdev); 8971da177e4SLinus Torvalds 89873d80debSLuiz Augusto von Dentz struct hci_chan *hci_chan_create(struct hci_conn *conn); 8999472007cSAndrei Emeltchenko void hci_chan_del(struct hci_chan *chan); 9002c33c06aSGustavo F. Padovan void hci_chan_list_flush(struct hci_conn *conn); 90142c4e53eSAndrei Emeltchenko struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); 90273d80debSLuiz Augusto von Dentz 903f75113a2SJakub Pawlowski struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, 904f75113a2SJakub Pawlowski u8 dst_type, u8 sec_level, 9050ad06aa6SJohan Hedberg u16 conn_timeout); 90604a6c589SAndre Guedes struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, 907cdd6275eSJohan Hedberg u8 dst_type, u8 sec_level, u16 conn_timeout, 908082f2300SSzymon Janc u8 role, bdaddr_t *direct_rpa); 90904a6c589SAndre Guedes struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, 91004a6c589SAndre Guedes u8 sec_level, u8 auth_type); 91110c62ddcSFrédéric Dalleau struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, 91210c62ddcSFrédéric Dalleau __u16 setting); 913e7c29cb1SMarcel Holtmann int hci_conn_check_link_mode(struct hci_conn *conn); 914b3b1b061SWaldemar Rymarkiewicz int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); 915e7cafc45SJohan Hedberg int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, 916e7cafc45SJohan Hedberg bool initiator); 9178c1b2355SMarcel Holtmann int hci_conn_switch_role(struct hci_conn *conn, __u8 role); 9181da177e4SLinus Torvalds 91914b12d0bSJaikumar Ganesh void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); 9201da177e4SLinus Torvalds 92106c053fbSAndre Guedes void hci_le_conn_failed(struct hci_conn *conn, u8 status); 92206c053fbSAndre Guedes 9238d12356fSDavid Herrmann /* 9248d12356fSDavid Herrmann * hci_conn_get() and hci_conn_put() are used to control the life-time of an 9258d12356fSDavid Herrmann * "hci_conn" object. They do not guarantee that the hci_conn object is running, 9268d12356fSDavid Herrmann * working or anything else. They just guarantee that the object is available 9278d12356fSDavid Herrmann * and can be dereferenced. So you can use its locks, local variables and any 9288d12356fSDavid Herrmann * other constant data. 9298d12356fSDavid Herrmann * Before accessing runtime data, you _must_ lock the object and then check that 9308d12356fSDavid Herrmann * it is still running. As soon as you release the locks, the connection might 9318d12356fSDavid Herrmann * get dropped, though. 9328d12356fSDavid Herrmann * 9338d12356fSDavid Herrmann * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control 9348d12356fSDavid Herrmann * how long the underlying connection is held. So every channel that runs on the 9358d12356fSDavid Herrmann * hci_conn object calls this to prevent the connection from disappearing. As 9368d12356fSDavid Herrmann * long as you hold a device, you must also guarantee that you have a valid 9378d12356fSDavid Herrmann * reference to the device via hci_conn_get() (or the initial reference from 9388d12356fSDavid Herrmann * hci_conn_add()). 9398d12356fSDavid Herrmann * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't 9408d12356fSDavid Herrmann * break because nobody cares for that. But this means, we cannot use 9418d12356fSDavid Herrmann * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). 9428d12356fSDavid Herrmann */ 9438d12356fSDavid Herrmann 94451bb8457SJohan Hedberg static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) 9458d12356fSDavid Herrmann { 9468d12356fSDavid Herrmann get_device(&conn->dev); 94751bb8457SJohan Hedberg return conn; 9488d12356fSDavid Herrmann } 9498d12356fSDavid Herrmann 9508d12356fSDavid Herrmann static inline void hci_conn_put(struct hci_conn *conn) 9518d12356fSDavid Herrmann { 9528d12356fSDavid Herrmann put_device(&conn->dev); 9538d12356fSDavid Herrmann } 9548d12356fSDavid Herrmann 9551da177e4SLinus Torvalds static inline void hci_conn_hold(struct hci_conn *conn) 9561da177e4SLinus Torvalds { 95771becf0cSAndrei Emeltchenko BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 95838b3fef1SAndrei Emeltchenko 9591da177e4SLinus Torvalds atomic_inc(&conn->refcnt); 9602f304d1eSAndre Guedes cancel_delayed_work(&conn->disc_work); 9611da177e4SLinus Torvalds } 9621da177e4SLinus Torvalds 96376a68ba0SDavid Herrmann static inline void hci_conn_drop(struct hci_conn *conn) 9641da177e4SLinus Torvalds { 96571becf0cSAndrei Emeltchenko BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); 96638b3fef1SAndrei Emeltchenko 9671da177e4SLinus Torvalds if (atomic_dec_and_test(&conn->refcnt)) { 96804837f64SMarcel Holtmann unsigned long timeo; 969716e4ab5SAndrei Emeltchenko 970716e4ab5SAndrei Emeltchenko switch (conn->type) { 971716e4ab5SAndrei Emeltchenko case ACL_LINK: 972716e4ab5SAndrei Emeltchenko case LE_LINK: 973a74a84f6SJohan Hedberg cancel_delayed_work(&conn->idle_work); 9746ac59344SMarcel Holtmann if (conn->state == BT_CONNECTED) { 9755f246e89SAndrei Emeltchenko timeo = conn->disc_timeout; 97604837f64SMarcel Holtmann if (!conn->out) 977052b30b0SMarcel Holtmann timeo *= 2; 9785a9d0a3fSWaldemar Rymarkiewicz } else { 979eb78d7e5SJohan Hedberg timeo = 0; 9805a9d0a3fSWaldemar Rymarkiewicz } 981716e4ab5SAndrei Emeltchenko break; 982716e4ab5SAndrei Emeltchenko 983716e4ab5SAndrei Emeltchenko case AMP_LINK: 984716e4ab5SAndrei Emeltchenko timeo = conn->disc_timeout; 985716e4ab5SAndrei Emeltchenko break; 986716e4ab5SAndrei Emeltchenko 987716e4ab5SAndrei Emeltchenko default: 988eb78d7e5SJohan Hedberg timeo = 0; 989716e4ab5SAndrei Emeltchenko break; 9905a9d0a3fSWaldemar Rymarkiewicz } 991716e4ab5SAndrei Emeltchenko 9922f304d1eSAndre Guedes cancel_delayed_work(&conn->disc_work); 99319c40e3bSGustavo F. Padovan queue_delayed_work(conn->hdev->workqueue, 9941931782bSVinicius Costa Gomes &conn->disc_work, timeo); 9951da177e4SLinus Torvalds } 9961da177e4SLinus Torvalds } 9971da177e4SLinus Torvalds 9981da177e4SLinus Torvalds /* ----- HCI Devices ----- */ 999dc946bd8SDavid Herrmann static inline void hci_dev_put(struct hci_dev *d) 10001da177e4SLinus Torvalds { 1001376261aeSAndrei Emeltchenko BT_DBG("%s orig refcnt %d", d->name, 10022c935bc5SPeter Zijlstra kref_read(&d->dev.kobj.kref)); 1003376261aeSAndrei Emeltchenko 10044c724c71SDavid Herrmann put_device(&d->dev); 1005010666a1SDavid Herrmann } 10061da177e4SLinus Torvalds 1007dc946bd8SDavid Herrmann static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) 10081da177e4SLinus Torvalds { 1009376261aeSAndrei Emeltchenko BT_DBG("%s orig refcnt %d", d->name, 10102c935bc5SPeter Zijlstra kref_read(&d->dev.kobj.kref)); 1011376261aeSAndrei Emeltchenko 10124c724c71SDavid Herrmann get_device(&d->dev); 10131da177e4SLinus Torvalds return d; 10141da177e4SLinus Torvalds } 10151da177e4SLinus Torvalds 101609fd0de5SGustavo F. Padovan #define hci_dev_lock(d) mutex_lock(&d->lock) 101709fd0de5SGustavo F. Padovan #define hci_dev_unlock(d) mutex_unlock(&d->lock) 10181da177e4SLinus Torvalds 1019aa2b86d7SDavid Herrmann #define to_hci_dev(d) container_of(d, struct hci_dev, dev) 10203dc07322SDavid Herrmann #define to_hci_conn(c) container_of(c, struct hci_conn, dev) 1021aa2b86d7SDavid Herrmann 1022155961e8SDavid Herrmann static inline void *hci_get_drvdata(struct hci_dev *hdev) 1023155961e8SDavid Herrmann { 1024155961e8SDavid Herrmann return dev_get_drvdata(&hdev->dev); 1025155961e8SDavid Herrmann } 1026155961e8SDavid Herrmann 1027155961e8SDavid Herrmann static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) 1028155961e8SDavid Herrmann { 1029155961e8SDavid Herrmann dev_set_drvdata(&hdev->dev, data); 1030155961e8SDavid Herrmann } 1031155961e8SDavid Herrmann 10321da177e4SLinus Torvalds struct hci_dev *hci_dev_get(int index); 103339385cb5SJohan Hedberg struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); 10341da177e4SLinus Torvalds 10351da177e4SLinus Torvalds struct hci_dev *hci_alloc_dev(void); 10361da177e4SLinus Torvalds void hci_free_dev(struct hci_dev *hdev); 10371da177e4SLinus Torvalds int hci_register_dev(struct hci_dev *hdev); 103859735631SDavid Herrmann void hci_unregister_dev(struct hci_dev *hdev); 10391da177e4SLinus Torvalds int hci_suspend_dev(struct hci_dev *hdev); 10401da177e4SLinus Torvalds int hci_resume_dev(struct hci_dev *hdev); 104175e0569fSMarcel Holtmann int hci_reset_dev(struct hci_dev *hdev); 1042f962fe32SMarcel Holtmann int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); 1043f962fe32SMarcel Holtmann int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); 10441aabbbceSNicolas Iooss __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); 10451aabbbceSNicolas Iooss __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); 10461da177e4SLinus Torvalds int hci_dev_open(__u16 dev); 10471da177e4SLinus Torvalds int hci_dev_close(__u16 dev); 10486b3cc1dbSSimon Fels int hci_dev_do_close(struct hci_dev *hdev); 10491da177e4SLinus Torvalds int hci_dev_reset(__u16 dev); 10501da177e4SLinus Torvalds int hci_dev_reset_stat(__u16 dev); 10511da177e4SLinus Torvalds int hci_dev_cmd(unsigned int cmd, void __user *arg); 10521da177e4SLinus Torvalds int hci_get_dev_list(void __user *arg); 10531da177e4SLinus Torvalds int hci_get_dev_info(void __user *arg); 10541da177e4SLinus Torvalds int hci_get_conn_list(void __user *arg); 10551da177e4SLinus Torvalds int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); 105640be492fSMarcel Holtmann int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); 10571da177e4SLinus Torvalds int hci_inquiry(void __user *arg); 10581da177e4SLinus Torvalds 1059dcc36c16SJohan Hedberg struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, 1060b9ee0a78SMarcel Holtmann bdaddr_t *bdaddr, u8 type); 1061dcc36c16SJohan Hedberg int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1062dcc36c16SJohan Hedberg int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); 1063dcc36c16SJohan Hedberg void hci_bdaddr_list_clear(struct list_head *list); 1064d2ab0ac1SMarcel Holtmann 106515819a70SAndre Guedes struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, 106615819a70SAndre Guedes bdaddr_t *addr, u8 addr_type); 106751d167c0SMarcel Holtmann struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, 106851d167c0SMarcel Holtmann bdaddr_t *addr, u8 addr_type); 106915819a70SAndre Guedes void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); 107055af49a8SJohan Hedberg void hci_conn_params_clear_disabled(struct hci_dev *hdev); 107115819a70SAndre Guedes 1072501f8827SJohan Hedberg struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, 1073501f8827SJohan Hedberg bdaddr_t *addr, 1074501f8827SJohan Hedberg u8 addr_type); 107577a77a30SAndre Guedes 107635f7498aSJohan Hedberg void hci_uuids_clear(struct hci_dev *hdev); 10772aeb9a1aSJohan Hedberg 107835f7498aSJohan Hedberg void hci_link_keys_clear(struct hci_dev *hdev); 107955ed8ca1SJohan Hedberg struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 1080567fa2aaSJohan Hedberg struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, 10817652ff6aSJohan Hedberg bdaddr_t *bdaddr, u8 *val, u8 type, 10827652ff6aSJohan Hedberg u8 pin_len, bool *persistent); 1083ca9142b8SJohan Hedberg struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 108435d70271SJohan Hedberg u8 addr_type, u8 type, u8 authenticated, 1085fe39c7b2SMarcel Holtmann u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); 1086f3a73d97SJohan Hedberg struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1087e804d25dSJohan Hedberg u8 addr_type, u8 role); 1088e0b2b27eSJohan Hedberg int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); 108935f7498aSJohan Hedberg void hci_smp_ltks_clear(struct hci_dev *hdev); 109055ed8ca1SJohan Hedberg int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); 109155ed8ca1SJohan Hedberg 1092970c4e46SJohan Hedberg struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); 1093970c4e46SJohan Hedberg struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, 1094970c4e46SJohan Hedberg u8 addr_type); 1095ca9142b8SJohan Hedberg struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, 1096ca9142b8SJohan Hedberg u8 addr_type, u8 val[16], bdaddr_t *rpa); 1097a7ec7338SJohan Hedberg void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); 1098970c4e46SJohan Hedberg void hci_smp_irks_clear(struct hci_dev *hdev); 1099970c4e46SJohan Hedberg 110055e76b38SJohan Hedberg bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); 110155e76b38SJohan Hedberg 110235f7498aSJohan Hedberg void hci_remote_oob_data_clear(struct hci_dev *hdev); 11032763eda6SSzymon Janc struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, 11046928a924SJohan Hedberg bdaddr_t *bdaddr, u8 bdaddr_type); 11050798872eSMarcel Holtmann int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 11066928a924SJohan Hedberg u8 bdaddr_type, u8 *hash192, u8 *rand192, 110738da1703SJohan Hedberg u8 *hash256, u8 *rand256); 11086928a924SJohan Hedberg int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, 11096928a924SJohan Hedberg u8 bdaddr_type); 11102763eda6SSzymon Janc 1111d2609b34SFlorian Grandel void hci_adv_instances_clear(struct hci_dev *hdev); 1112d2609b34SFlorian Grandel struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); 1113d2609b34SFlorian Grandel struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); 1114d2609b34SFlorian Grandel int hci_add_adv_instance(struct hci_dev *hdev, u8 instance, u32 flags, 1115d2609b34SFlorian Grandel u16 adv_data_len, u8 *adv_data, 1116d2609b34SFlorian Grandel u16 scan_rsp_len, u8 *scan_rsp_data, 1117d2609b34SFlorian Grandel u16 timeout, u16 duration); 1118d2609b34SFlorian Grandel int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); 1119a73c046aSJaganath Kanakkassery void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); 1120d2609b34SFlorian Grandel 11211da177e4SLinus Torvalds void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); 11221da177e4SLinus Torvalds 11230ac7e700SDavid Herrmann void hci_init_sysfs(struct hci_dev *hdev); 1124a67e899cSMarcel Holtmann void hci_conn_init_sysfs(struct hci_conn *conn); 1125b219e3acSMarcel Holtmann void hci_conn_add_sysfs(struct hci_conn *conn); 1126b219e3acSMarcel Holtmann void hci_conn_del_sysfs(struct hci_conn *conn); 11271da177e4SLinus Torvalds 11286935e0f5SDavid Herrmann #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) 11291da177e4SLinus Torvalds 11301da177e4SLinus Torvalds /* ----- LMP capabilities ----- */ 1131cad718edSJohan Hedberg #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) 1132cad718edSJohan Hedberg #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) 1133cad718edSJohan Hedberg #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) 1134cad718edSJohan Hedberg #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) 1135cad718edSJohan Hedberg #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) 1136cad718edSJohan Hedberg #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) 1137cad718edSJohan Hedberg #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) 1138cad718edSJohan Hedberg #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) 1139cad718edSJohan Hedberg #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) 1140cad718edSJohan Hedberg #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) 1141cad718edSJohan Hedberg #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) 1142cad718edSJohan Hedberg #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) 1143cad718edSJohan Hedberg #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) 1144cad718edSJohan Hedberg #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) 1145cad718edSJohan Hedberg #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) 1146cad718edSJohan Hedberg #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) 1147cad718edSJohan Hedberg #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) 1148cad718edSJohan Hedberg #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) 114907a5c61eSFrédéric Dalleau #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) 11505075b972SJaganath Kanakkassery #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) 11515075b972SJaganath Kanakkassery #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) 11525075b972SJaganath Kanakkassery #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) 11535075b972SJaganath Kanakkassery #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) 11541da177e4SLinus Torvalds 1155eead27daSAndre Guedes /* ----- Extended LMP capabilities ----- */ 115653b834d2SMarcel Holtmann #define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) 115753b834d2SMarcel Holtmann #define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) 115853b834d2SMarcel Holtmann #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) 115953b834d2SMarcel Holtmann #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) 1160d5991585SMarcel Holtmann #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) 1161d5991585SMarcel Holtmann #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) 116253b834d2SMarcel Holtmann 116353b834d2SMarcel Holtmann /* ----- Host capabilities ----- */ 1164cad718edSJohan Hedberg #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) 1165d5991585SMarcel Holtmann #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) 1166cad718edSJohan Hedberg #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) 1167cad718edSJohan Hedberg #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) 1168eead27daSAndre Guedes 1169d7a5a11dSMarcel Holtmann #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ 1170d7a5a11dSMarcel Holtmann !hci_dev_test_flag(dev, HCI_AUTO_OFF)) 117105b3c3e7SMarcel Holtmann #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ 1172d7a5a11dSMarcel Holtmann hci_dev_test_flag(dev, HCI_SC_ENABLED)) 1173432df05eSJohan Hedberg 117445bdd86eSJaganath Kanakkassery #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ 117545bdd86eSJaganath Kanakkassery ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) 117645bdd86eSJaganath Kanakkassery 117745bdd86eSJaganath Kanakkassery #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ 117845bdd86eSJaganath Kanakkassery ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) 117945bdd86eSJaganath Kanakkassery 118045bdd86eSJaganath Kanakkassery #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ 118145bdd86eSJaganath Kanakkassery ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) 118245bdd86eSJaganath Kanakkassery 1183a2344b9eSJaganath Kanakkassery /* Use ext scanning if set ext scan param and ext scan enable is supported */ 1184a2344b9eSJaganath Kanakkassery #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ 1185a2344b9eSJaganath Kanakkassery ((dev)->commands[37] & 0x40)) 11864d94f95dSJaganath Kanakkassery /* Use ext create connection if command is supported */ 11874d94f95dSJaganath Kanakkassery #define use_ext_conn(dev) ((dev)->commands[37] & 0x80) 1188a2344b9eSJaganath Kanakkassery 11896b49bcb4SJaganath Kanakkassery /* Extended advertising support */ 11906b49bcb4SJaganath Kanakkassery #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) 11916b49bcb4SJaganath Kanakkassery 11921da177e4SLinus Torvalds /* ----- HCI protocols ----- */ 119320714bfeSFrédéric Dalleau #define HCI_PROTO_DEFER 0x01 119420714bfeSFrédéric Dalleau 11955a9d0a3fSWaldemar Rymarkiewicz static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, 119620714bfeSFrédéric Dalleau __u8 type, __u8 *flags) 11971da177e4SLinus Torvalds { 1198686ebf28SUlisses Furquim switch (type) { 1199686ebf28SUlisses Furquim case ACL_LINK: 1200686ebf28SUlisses Furquim return l2cap_connect_ind(hdev, bdaddr); 12011da177e4SLinus Torvalds 1202686ebf28SUlisses Furquim case SCO_LINK: 1203686ebf28SUlisses Furquim case ESCO_LINK: 120420714bfeSFrédéric Dalleau return sco_connect_ind(hdev, bdaddr, flags); 12051da177e4SLinus Torvalds 1206686ebf28SUlisses Furquim default: 1207686ebf28SUlisses Furquim BT_ERR("unknown link type %d", type); 1208686ebf28SUlisses Furquim return -EINVAL; 1209686ebf28SUlisses Furquim } 12101da177e4SLinus Torvalds } 12111da177e4SLinus Torvalds 12122950f21aSMarcel Holtmann static inline int hci_proto_disconn_ind(struct hci_conn *conn) 12132950f21aSMarcel Holtmann { 1214686ebf28SUlisses Furquim if (conn->type != ACL_LINK && conn->type != LE_LINK) 1215686ebf28SUlisses Furquim return HCI_ERROR_REMOTE_USER_TERM; 12162950f21aSMarcel Holtmann 1217686ebf28SUlisses Furquim return l2cap_disconn_ind(conn); 12182950f21aSMarcel Holtmann } 12192950f21aSMarcel Holtmann 12201da177e4SLinus Torvalds /* ----- HCI callbacks ----- */ 12211da177e4SLinus Torvalds struct hci_cb { 12221da177e4SLinus Torvalds struct list_head list; 12231da177e4SLinus Torvalds 12241da177e4SLinus Torvalds char *name; 12251da177e4SLinus Torvalds 1226539c496dSJohan Hedberg void (*connect_cfm) (struct hci_conn *conn, __u8 status); 12273a6d576bSJohan Hedberg void (*disconn_cfm) (struct hci_conn *conn, __u8 status); 12285a9d0a3fSWaldemar Rymarkiewicz void (*security_cfm) (struct hci_conn *conn, __u8 status, 12295a9d0a3fSWaldemar Rymarkiewicz __u8 encrypt); 12301da177e4SLinus Torvalds void (*key_change_cfm) (struct hci_conn *conn, __u8 status); 12311da177e4SLinus Torvalds void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); 12321da177e4SLinus Torvalds }; 12331da177e4SLinus Torvalds 1234539c496dSJohan Hedberg static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) 1235539c496dSJohan Hedberg { 1236539c496dSJohan Hedberg struct hci_cb *cb; 1237539c496dSJohan Hedberg 1238539c496dSJohan Hedberg mutex_lock(&hci_cb_list_lock); 1239539c496dSJohan Hedberg list_for_each_entry(cb, &hci_cb_list, list) { 1240539c496dSJohan Hedberg if (cb->connect_cfm) 1241539c496dSJohan Hedberg cb->connect_cfm(conn, status); 1242539c496dSJohan Hedberg } 1243539c496dSJohan Hedberg mutex_unlock(&hci_cb_list_lock); 1244539c496dSJohan Hedberg 1245539c496dSJohan Hedberg if (conn->connect_cfm_cb) 1246539c496dSJohan Hedberg conn->connect_cfm_cb(conn, status); 1247539c496dSJohan Hedberg } 1248539c496dSJohan Hedberg 12493a6d576bSJohan Hedberg static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) 12503a6d576bSJohan Hedberg { 12513a6d576bSJohan Hedberg struct hci_cb *cb; 12523a6d576bSJohan Hedberg 12533a6d576bSJohan Hedberg mutex_lock(&hci_cb_list_lock); 12543a6d576bSJohan Hedberg list_for_each_entry(cb, &hci_cb_list, list) { 12553a6d576bSJohan Hedberg if (cb->disconn_cfm) 12563a6d576bSJohan Hedberg cb->disconn_cfm(conn, reason); 12573a6d576bSJohan Hedberg } 12583a6d576bSJohan Hedberg mutex_unlock(&hci_cb_list_lock); 12593a6d576bSJohan Hedberg 12603a6d576bSJohan Hedberg if (conn->disconn_cfm_cb) 12613a6d576bSJohan Hedberg conn->disconn_cfm_cb(conn, reason); 12623a6d576bSJohan Hedberg } 12633a6d576bSJohan Hedberg 12641da177e4SLinus Torvalds static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) 12651da177e4SLinus Torvalds { 1266711584eaSDenis Kirjanov struct hci_cb *cb; 12678c1b2355SMarcel Holtmann __u8 encrypt; 12681da177e4SLinus Torvalds 126951a8efd7SJohan Hedberg if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) 12708c1b2355SMarcel Holtmann return; 12718c1b2355SMarcel Holtmann 12724dae2798SJohan Hedberg encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; 12738c1b2355SMarcel Holtmann 1274fba7ecf0SJohan Hedberg mutex_lock(&hci_cb_list_lock); 1275711584eaSDenis Kirjanov list_for_each_entry(cb, &hci_cb_list, list) { 12768c1b2355SMarcel Holtmann if (cb->security_cfm) 12778c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 12781da177e4SLinus Torvalds } 1279fba7ecf0SJohan Hedberg mutex_unlock(&hci_cb_list_lock); 1280354fe804SJohan Hedberg 1281354fe804SJohan Hedberg if (conn->security_cfm_cb) 1282354fe804SJohan Hedberg conn->security_cfm_cb(conn, status); 12831da177e4SLinus Torvalds } 12841da177e4SLinus Torvalds 12855a9d0a3fSWaldemar Rymarkiewicz static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, 12865a9d0a3fSWaldemar Rymarkiewicz __u8 encrypt) 12871da177e4SLinus Torvalds { 1288711584eaSDenis Kirjanov struct hci_cb *cb; 12891da177e4SLinus Torvalds 1290435fef20SMarcel Holtmann if (conn->sec_level == BT_SECURITY_SDP) 1291435fef20SMarcel Holtmann conn->sec_level = BT_SECURITY_LOW; 1292435fef20SMarcel Holtmann 129388167aedSVinicius Costa Gomes if (conn->pending_sec_level > conn->sec_level) 129488167aedSVinicius Costa Gomes conn->sec_level = conn->pending_sec_level; 129588167aedSVinicius Costa Gomes 1296fba7ecf0SJohan Hedberg mutex_lock(&hci_cb_list_lock); 1297711584eaSDenis Kirjanov list_for_each_entry(cb, &hci_cb_list, list) { 12988c1b2355SMarcel Holtmann if (cb->security_cfm) 12998c1b2355SMarcel Holtmann cb->security_cfm(conn, status, encrypt); 13001da177e4SLinus Torvalds } 1301fba7ecf0SJohan Hedberg mutex_unlock(&hci_cb_list_lock); 1302354fe804SJohan Hedberg 1303354fe804SJohan Hedberg if (conn->security_cfm_cb) 1304354fe804SJohan Hedberg conn->security_cfm_cb(conn, status); 13051da177e4SLinus Torvalds } 13061da177e4SLinus Torvalds 13071da177e4SLinus Torvalds static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) 13081da177e4SLinus Torvalds { 1309711584eaSDenis Kirjanov struct hci_cb *cb; 13101da177e4SLinus Torvalds 1311fba7ecf0SJohan Hedberg mutex_lock(&hci_cb_list_lock); 1312711584eaSDenis Kirjanov list_for_each_entry(cb, &hci_cb_list, list) { 13131da177e4SLinus Torvalds if (cb->key_change_cfm) 13141da177e4SLinus Torvalds cb->key_change_cfm(conn, status); 13151da177e4SLinus Torvalds } 1316fba7ecf0SJohan Hedberg mutex_unlock(&hci_cb_list_lock); 13171da177e4SLinus Torvalds } 13181da177e4SLinus Torvalds 13195a9d0a3fSWaldemar Rymarkiewicz static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, 13205a9d0a3fSWaldemar Rymarkiewicz __u8 role) 13211da177e4SLinus Torvalds { 1322711584eaSDenis Kirjanov struct hci_cb *cb; 13231da177e4SLinus Torvalds 1324fba7ecf0SJohan Hedberg mutex_lock(&hci_cb_list_lock); 1325711584eaSDenis Kirjanov list_for_each_entry(cb, &hci_cb_list, list) { 13261da177e4SLinus Torvalds if (cb->role_switch_cfm) 13271da177e4SLinus Torvalds cb->role_switch_cfm(conn, status, role); 13281da177e4SLinus Torvalds } 1329fba7ecf0SJohan Hedberg mutex_unlock(&hci_cb_list_lock); 13301da177e4SLinus Torvalds } 13311da177e4SLinus Torvalds 13320d3b7f64SJohan Hedberg static inline void *eir_get_data(u8 *eir, size_t eir_len, u8 type, 13330d3b7f64SJohan Hedberg size_t *data_len) 13346759a675SJohan Hedberg { 133584d9d071SJohan Hedberg size_t parsed = 0; 13366759a675SJohan Hedberg 13370d3b7f64SJohan Hedberg if (eir_len < 2) 13380d3b7f64SJohan Hedberg return NULL; 13396c0c331eSJohan Hedberg 13400d3b7f64SJohan Hedberg while (parsed < eir_len - 1) { 13410d3b7f64SJohan Hedberg u8 field_len = eir[0]; 13426759a675SJohan Hedberg 13436759a675SJohan Hedberg if (field_len == 0) 13446759a675SJohan Hedberg break; 13456759a675SJohan Hedberg 13466759a675SJohan Hedberg parsed += field_len + 1; 13476759a675SJohan Hedberg 13480d3b7f64SJohan Hedberg if (parsed > eir_len) 13496759a675SJohan Hedberg break; 13506759a675SJohan Hedberg 13510d3b7f64SJohan Hedberg if (eir[1] != type) { 13520d3b7f64SJohan Hedberg eir += field_len + 1; 13530d3b7f64SJohan Hedberg continue; 13546759a675SJohan Hedberg } 13556759a675SJohan Hedberg 13560d3b7f64SJohan Hedberg /* Zero length data */ 13570d3b7f64SJohan Hedberg if (field_len == 1) 13580d3b7f64SJohan Hedberg return NULL; 13590d3b7f64SJohan Hedberg 13600d3b7f64SJohan Hedberg if (data_len) 13610d3b7f64SJohan Hedberg *data_len = field_len - 1; 13620d3b7f64SJohan Hedberg 13630d3b7f64SJohan Hedberg return &eir[2]; 13640d3b7f64SJohan Hedberg } 13650d3b7f64SJohan Hedberg 13660d3b7f64SJohan Hedberg return NULL; 13676759a675SJohan Hedberg } 13686759a675SJohan Hedberg 1369301cb2d8SJohan Hedberg static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) 1370301cb2d8SJohan Hedberg { 1371dbbfa2abSAndre Guedes if (addr_type != ADDR_LE_DEV_RANDOM) 1372301cb2d8SJohan Hedberg return false; 1373301cb2d8SJohan Hedberg 1374301cb2d8SJohan Hedberg if ((bdaddr->b[5] & 0xc0) == 0x40) 1375301cb2d8SJohan Hedberg return true; 1376301cb2d8SJohan Hedberg 1377301cb2d8SJohan Hedberg return false; 1378301cb2d8SJohan Hedberg } 1379301cb2d8SJohan Hedberg 1380c46245b3SJohan Hedberg static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) 1381c46245b3SJohan Hedberg { 1382c46245b3SJohan Hedberg if (addr_type == ADDR_LE_DEV_PUBLIC) 1383c46245b3SJohan Hedberg return true; 1384c46245b3SJohan Hedberg 1385c46245b3SJohan Hedberg /* Check for Random Static address type */ 1386c46245b3SJohan Hedberg if ((addr->b[5] & 0xc0) == 0xc0) 1387c46245b3SJohan Hedberg return true; 1388c46245b3SJohan Hedberg 1389c46245b3SJohan Hedberg return false; 1390c46245b3SJohan Hedberg } 1391c46245b3SJohan Hedberg 13922426f3a5SJohan Hedberg static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, 13932426f3a5SJohan Hedberg bdaddr_t *bdaddr, u8 addr_type) 13942426f3a5SJohan Hedberg { 13952426f3a5SJohan Hedberg if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) 13962426f3a5SJohan Hedberg return NULL; 13972426f3a5SJohan Hedberg 13982426f3a5SJohan Hedberg return hci_find_irk_by_rpa(hdev, bdaddr); 13992426f3a5SJohan Hedberg } 14002426f3a5SJohan Hedberg 1401d4905f24SAndre Guedes static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, 1402d4905f24SAndre Guedes u16 to_multiplier) 1403d4905f24SAndre Guedes { 1404d4905f24SAndre Guedes u16 max_latency; 1405d4905f24SAndre Guedes 1406d4905f24SAndre Guedes if (min > max || min < 6 || max > 3200) 1407d4905f24SAndre Guedes return -EINVAL; 1408d4905f24SAndre Guedes 1409d4905f24SAndre Guedes if (to_multiplier < 10 || to_multiplier > 3200) 1410d4905f24SAndre Guedes return -EINVAL; 1411d4905f24SAndre Guedes 1412d4905f24SAndre Guedes if (max >= to_multiplier * 8) 1413d4905f24SAndre Guedes return -EINVAL; 1414d4905f24SAndre Guedes 14158757825bSSeungyoun Ju max_latency = (to_multiplier * 4 / max) - 1; 1416d4905f24SAndre Guedes if (latency > 499 || latency > max_latency) 1417d4905f24SAndre Guedes return -EINVAL; 1418d4905f24SAndre Guedes 1419d4905f24SAndre Guedes return 0; 1420d4905f24SAndre Guedes } 1421d4905f24SAndre Guedes 14221da177e4SLinus Torvalds int hci_register_cb(struct hci_cb *hcb); 14231da177e4SLinus Torvalds int hci_unregister_cb(struct hci_cb *hcb); 14241da177e4SLinus Torvalds 142575e84b7cSJohan Hedberg struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 142607dc93ddSJohan Hedberg const void *param, u32 timeout); 14277b1abbbeSJohan Hedberg struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, 142807dc93ddSJohan Hedberg const void *param, u8 event, u32 timeout); 1429d6ee6ad7SLoic Poulain int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, 1430d6ee6ad7SLoic Poulain const void *param); 143175e84b7cSJohan Hedberg 143207dc93ddSJohan Hedberg int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, 143307dc93ddSJohan Hedberg const void *param); 143473d80debSLuiz Augusto von Dentz void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); 14350d861d8bSGustavo F. Padovan void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); 14361da177e4SLinus Torvalds 1437a9de9248SMarcel Holtmann void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); 14381da177e4SLinus Torvalds 1439fbef168fSLoic Poulain struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, 1440fbef168fSLoic Poulain const void *param, u32 timeout); 1441fbef168fSLoic Poulain 14421da177e4SLinus Torvalds /* ----- HCI Sockets ----- */ 1443470fe1b5SMarcel Holtmann void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); 14447129069eSJohan Hedberg void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, 1445c08b1a1dSMarcel Holtmann int flag, struct sock *skip_sk); 1446cd82e61cSMarcel Holtmann void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); 144738ceaa00SMarcel Holtmann void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, 144838ceaa00SMarcel Holtmann void *data, u16 data_len, ktime_t tstamp, 144938ceaa00SMarcel Holtmann int flag, struct sock *skip_sk); 14501da177e4SLinus Torvalds 1451040030efSMarcel Holtmann void hci_sock_dev_event(struct hci_dev *hdev, int event); 1452040030efSMarcel Holtmann 1453a958452aSMarcel Holtmann #define HCI_MGMT_VAR_LEN BIT(0) 1454a958452aSMarcel Holtmann #define HCI_MGMT_NO_HDEV BIT(1) 1455a958452aSMarcel Holtmann #define HCI_MGMT_UNTRUSTED BIT(2) 1456a958452aSMarcel Holtmann #define HCI_MGMT_UNCONFIGURED BIT(3) 1457b9a245fbSJohan Hedberg 1458801c1e8dSJohan Hedberg struct hci_mgmt_handler { 1459801c1e8dSJohan Hedberg int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, 1460801c1e8dSJohan Hedberg u16 data_len); 1461801c1e8dSJohan Hedberg size_t data_len; 1462b9a245fbSJohan Hedberg unsigned long flags; 1463801c1e8dSJohan Hedberg }; 1464801c1e8dSJohan Hedberg 1465801c1e8dSJohan Hedberg struct hci_mgmt_chan { 1466801c1e8dSJohan Hedberg struct list_head list; 1467801c1e8dSJohan Hedberg unsigned short channel; 1468801c1e8dSJohan Hedberg size_t handler_count; 1469801c1e8dSJohan Hedberg const struct hci_mgmt_handler *handlers; 147088b94ce9SJohan Hedberg void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); 1471801c1e8dSJohan Hedberg }; 1472801c1e8dSJohan Hedberg 1473801c1e8dSJohan Hedberg int hci_mgmt_chan_register(struct hci_mgmt_chan *c); 1474801c1e8dSJohan Hedberg void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); 1475801c1e8dSJohan Hedberg 14760381101fSJohan Hedberg /* Management interface */ 1477591f47f3SAndre Guedes #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) 1478591f47f3SAndre Guedes #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ 1479591f47f3SAndre Guedes BIT(BDADDR_LE_RANDOM)) 1480591f47f3SAndre Guedes #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ 1481591f47f3SAndre Guedes BIT(BDADDR_LE_PUBLIC) | \ 1482591f47f3SAndre Guedes BIT(BDADDR_LE_RANDOM)) 1483f39799f5SAndre Guedes 14840d8cc935SAndre Guedes /* These LE scan and inquiry parameters were chosen according to LE General 14850d8cc935SAndre Guedes * Discovery Procedure specification. 14860d8cc935SAndre Guedes */ 14870d8cc935SAndre Guedes #define DISCOV_LE_SCAN_WIN 0x12 14880d8cc935SAndre Guedes #define DISCOV_LE_SCAN_INT 0x12 14893d5a76f0SLukasz Rymanowski #define DISCOV_LE_TIMEOUT 10240 /* msec */ 1490ae55f598SLukasz Rymanowski #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ 14910d8cc935SAndre Guedes #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 14920d8cc935SAndre Guedes #define DISCOV_BREDR_INQUIRY_LEN 0x08 14934b0e0cedSJakub Pawlowski #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ 14940d8cc935SAndre Guedes 149503c979c4SMarcel Holtmann void mgmt_fill_version_info(void *ver); 149691a668b0SJohan Hedberg int mgmt_new_settings(struct hci_dev *hdev); 1497bf6b56dbSMarcel Holtmann void mgmt_index_added(struct hci_dev *hdev); 1498bf6b56dbSMarcel Holtmann void mgmt_index_removed(struct hci_dev *hdev); 14993eec705eSMarcel Holtmann void mgmt_set_powered_failed(struct hci_dev *hdev, int err); 15002ff13894SJohan Hedberg void mgmt_power_on(struct hci_dev *hdev, int err); 15012ff13894SJohan Hedberg void __mgmt_power_off(struct hci_dev *hdev); 1502dc4a5ee2SMarcel Holtmann void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, 1503745c0ce3SVishal Agarwal bool persistent); 150448ec92faSAlfonso Acosta void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, 150548ec92faSAlfonso Acosta u32 flags, u8 *name, u8 name_len); 15069b80ec5eSMarcel Holtmann void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, 150712d4a3b2SJohan Hedberg u8 link_type, u8 addr_type, u8 reason, 150812d4a3b2SJohan Hedberg bool mgmt_connected); 15097892924cSMarcel Holtmann void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, 151088c3df13SJohan Hedberg u8 link_type, u8 addr_type, u8 status); 1511445608d0SMarcel Holtmann void mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 151248264f06SJohan Hedberg u8 addr_type, u8 status); 1513ce0e4a0dSMarcel Holtmann void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); 1514e669cf80SMarcel Holtmann void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1515c35938b2SSzymon Janc u8 status); 15163eb38528SMarcel Holtmann void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1517744cf19eSJohan Hedberg u8 status); 1518744cf19eSJohan Hedberg int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 151939adbffeSJohan Hedberg u8 link_type, u8 addr_type, u32 value, 1520272d90dfSJohan Hedberg u8 confirm_hint); 1521744cf19eSJohan Hedberg int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1522272d90dfSJohan Hedberg u8 link_type, u8 addr_type, u8 status); 1523272d90dfSJohan Hedberg int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1524272d90dfSJohan Hedberg u8 link_type, u8 addr_type, u8 status); 1525272d90dfSJohan Hedberg int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, 1526272d90dfSJohan Hedberg u8 link_type, u8 addr_type); 1527604086b7SBrian Gix int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1528272d90dfSJohan Hedberg u8 link_type, u8 addr_type, u8 status); 1529272d90dfSJohan Hedberg int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, 1530272d90dfSJohan Hedberg u8 link_type, u8 addr_type, u8 status); 153192a25256SJohan Hedberg int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, 153292a25256SJohan Hedberg u8 link_type, u8 addr_type, u32 passkey, 153392a25256SJohan Hedberg u8 entered); 1534e1e930f5SJohan Hedberg void mgmt_auth_failed(struct hci_conn *conn, u8 status); 1535464996aeSMarcel Holtmann void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); 15363e248560SMarcel Holtmann void mgmt_ssp_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); 15374e1b0245SMarcel Holtmann void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, 15387f9a903cSMarcel Holtmann u8 status); 15397667da34SMarcel Holtmann void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); 1540e68f072bSJohan Hedberg void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); 15412154d3f4SJohan Hedberg void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); 1542901801b9SMarcel Holtmann void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1543af58925cSMarcel Holtmann u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, 1544af58925cSMarcel Holtmann u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len); 15459cf12aeeSMarcel Holtmann void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, 1546b644ba33SJohan Hedberg u8 addr_type, s8 rssi, u8 *name, u8 name_len); 15472f1e063bSMarcel Holtmann void mgmt_discovering(struct hci_dev *hdev, u8 discovering); 154884c61d92SJohan Hedberg bool mgmt_powering_down(struct hci_dev *hdev); 154953ac6ab6SMarcel Holtmann void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); 1550cad20c27SJohan Hedberg void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); 155153ac6ab6SMarcel Holtmann void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, 155253ac6ab6SMarcel Holtmann bool persistent); 1553ffb5a827SAndre Guedes void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, 1554f4869e2aSJohan Hedberg u8 bdaddr_type, u8 store_hint, u16 min_interval, 1555f4869e2aSJohan Hedberg u16 max_interval, u16 latency, u16 timeout); 1556f4a407beSJohan Hedberg void mgmt_smp_complete(struct hci_conn *conn, bool complete); 1557f2252570SJohan Hedberg bool mgmt_get_connectable(struct hci_dev *hdev); 155853c0ba74SJohan Hedberg void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status); 1559aed1a885SJohan Hedberg void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status); 1560f2252570SJohan Hedberg u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); 1561f2252570SJohan Hedberg void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, 1562f2252570SJohan Hedberg u8 instance); 1563f2252570SJohan Hedberg void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, 1564f2252570SJohan Hedberg u8 instance); 1565b7c23df8SJaganath Kanakkassery int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); 1566346af67bSVinicius Costa Gomes 15677d6ca693SJohan Hedberg u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, 15687d6ca693SJohan Hedberg u16 to_multiplier); 1569fe39c7b2SMarcel Holtmann void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, 15708b76ce34SJohan Hedberg __u8 ltk[16], __u8 key_size); 15712519a1fcSAndre Guedes 1572a1f4c318SJohan Hedberg void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, 1573a1f4c318SJohan Hedberg u8 *bdaddr_type); 1574ebd3a747SJohan Hedberg 15755d4d62f6SFrédéric Dalleau #define SCO_AIRMODE_MASK 0x0003 15765d4d62f6SFrédéric Dalleau #define SCO_AIRMODE_CVSD 0x0000 15775d4d62f6SFrédéric Dalleau #define SCO_AIRMODE_TRANSP 0x0003 15785d4d62f6SFrédéric Dalleau 15791da177e4SLinus Torvalds #endif /* __HCI_CORE_H */ 1580