| /* |
| BlueZ - Bluetooth protocol stack for Linux |
| Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. |
| Copyright 2023-2024 NXP |
| |
| Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License version 2 as |
| published by the Free Software Foundation; |
| |
| THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS |
| OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS. |
| IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY |
| CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES |
| WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
| ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
| OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
| |
| ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, |
| COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS |
| SOFTWARE IS DISCLAIMED. |
| */ |
| |
| #ifndef __HCI_CORE_H |
| #define __HCI_CORE_H |
| |
| #include <linux/idr.h> |
| #include <linux/leds.h> |
| #include <linux/rculist.h> |
| |
| #include <net/bluetooth/hci.h> |
| #include <net/bluetooth/hci_sync.h> |
| #include <net/bluetooth/hci_sock.h> |
| #include <net/bluetooth/coredump.h> |
| |
| /* HCI priority */ |
| #define HCI_PRIO_MAX 7 |
| |
| /* HCI maximum id value */ |
| #define HCI_MAX_ID 10000 |
| |
| /* HCI Core structures */ |
| struct inquiry_data { |
| bdaddr_t bdaddr; |
| __u8 pscan_rep_mode; |
| __u8 pscan_period_mode; |
| __u8 pscan_mode; |
| __u8 dev_class[3]; |
| __le16 clock_offset; |
| __s8 rssi; |
| __u8 ssp_mode; |
| }; |
| |
| struct inquiry_entry { |
| struct list_head all; /* inq_cache.all */ |
| struct list_head list; /* unknown or resolve */ |
| enum { |
| NAME_NOT_KNOWN, |
| NAME_NEEDED, |
| NAME_PENDING, |
| NAME_KNOWN, |
| } name_state; |
| __u32 timestamp; |
| struct inquiry_data data; |
| }; |
| |
| struct discovery_state { |
| int type; |
| enum { |
| DISCOVERY_STOPPED, |
| DISCOVERY_STARTING, |
| DISCOVERY_FINDING, |
| DISCOVERY_RESOLVING, |
| DISCOVERY_STOPPING, |
| } state; |
| struct list_head all; /* All devices found during inquiry */ |
| struct list_head unknown; /* Name state not known */ |
| struct list_head resolve; /* Name needs to be resolved */ |
| __u32 timestamp; |
| bdaddr_t last_adv_addr; |
| u8 last_adv_addr_type; |
| s8 last_adv_rssi; |
| u32 last_adv_flags; |
| u8 last_adv_data[HCI_MAX_EXT_AD_LENGTH]; |
| u8 last_adv_data_len; |
| bool report_invalid_rssi; |
| bool result_filtering; |
| bool limited; |
| s8 rssi; |
| u16 uuid_count; |
| u8 (*uuids)[16]; |
| unsigned long name_resolve_timeout; |
| }; |
| |
| #define SUSPEND_NOTIFIER_TIMEOUT msecs_to_jiffies(2000) /* 2 seconds */ |
| |
| enum suspend_tasks { |
| SUSPEND_PAUSE_DISCOVERY, |
| SUSPEND_UNPAUSE_DISCOVERY, |
| |
| SUSPEND_PAUSE_ADVERTISING, |
| SUSPEND_UNPAUSE_ADVERTISING, |
| |
| SUSPEND_SCAN_DISABLE, |
| SUSPEND_SCAN_ENABLE, |
| SUSPEND_DISCONNECTING, |
| |
| SUSPEND_POWERING_DOWN, |
| |
| SUSPEND_PREPARE_NOTIFIER, |
| |
| SUSPEND_SET_ADV_FILTER, |
| __SUSPEND_NUM_TASKS |
| }; |
| |
| enum suspended_state { |
| BT_RUNNING = 0, |
| BT_SUSPEND_DISCONNECT, |
| BT_SUSPEND_CONFIGURE_WAKE, |
| }; |
| |
| struct hci_conn_hash { |
| struct list_head list; |
| unsigned int acl_num; |
| unsigned int sco_num; |
| unsigned int iso_num; |
| unsigned int le_num; |
| unsigned int le_num_peripheral; |
| }; |
| |
| struct bdaddr_list { |
| struct list_head list; |
| bdaddr_t bdaddr; |
| u8 bdaddr_type; |
| }; |
| |
| struct codec_list { |
| struct list_head list; |
| u8 id; |
| __u16 cid; |
| __u16 vid; |
| u8 transport; |
| u8 num_caps; |
| u32 len; |
| struct hci_codec_caps caps[]; |
| }; |
| |
| struct bdaddr_list_with_irk { |
| struct list_head list; |
| bdaddr_t bdaddr; |
| u8 bdaddr_type; |
| u8 peer_irk[16]; |
| u8 local_irk[16]; |
| }; |
| |
| /* Bitmask of connection flags */ |
| enum hci_conn_flags { |
| HCI_CONN_FLAG_REMOTE_WAKEUP = 1, |
| HCI_CONN_FLAG_DEVICE_PRIVACY = 2, |
| }; |
| typedef u8 hci_conn_flags_t; |
| |
| struct bdaddr_list_with_flags { |
| struct list_head list; |
| bdaddr_t bdaddr; |
| u8 bdaddr_type; |
| hci_conn_flags_t flags; |
| }; |
| |
| struct bt_uuid { |
| struct list_head list; |
| u8 uuid[16]; |
| u8 size; |
| u8 svc_hint; |
| }; |
| |
| struct blocked_key { |
| struct list_head list; |
| struct rcu_head rcu; |
| u8 type; |
| u8 val[16]; |
| }; |
| |
| struct smp_csrk { |
| bdaddr_t bdaddr; |
| u8 bdaddr_type; |
| u8 type; |
| u8 val[16]; |
| }; |
| |
| struct smp_ltk { |
| struct list_head list; |
| struct rcu_head rcu; |
| bdaddr_t bdaddr; |
| u8 bdaddr_type; |
| u8 authenticated; |
| u8 type; |
| u8 enc_size; |
| __le16 ediv; |
| __le64 rand; |
| u8 val[16]; |
| }; |
| |
| struct smp_irk { |
| struct list_head list; |
| struct rcu_head rcu; |
| bdaddr_t rpa; |
| bdaddr_t bdaddr; |
| u8 addr_type; |
| u8 val[16]; |
| }; |
| |
| struct link_key { |
| struct list_head list; |
| struct rcu_head rcu; |
| bdaddr_t bdaddr; |
| u8 type; |
| u8 val[HCI_LINK_KEY_SIZE]; |
| u8 pin_len; |
| }; |
| |
| struct oob_data { |
| struct list_head list; |
| bdaddr_t bdaddr; |
| u8 bdaddr_type; |
| u8 present; |
| u8 hash192[16]; |
| u8 rand192[16]; |
| u8 hash256[16]; |
| u8 rand256[16]; |
| }; |
| |
| struct adv_info { |
| struct list_head list; |
| bool enabled; |
| bool pending; |
| bool periodic; |
| __u8 mesh; |
| __u8 instance; |
| __u8 handle; |
| __u32 flags; |
| __u16 timeout; |
| __u16 remaining_time; |
| __u16 duration; |
| __u16 adv_data_len; |
| __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; |
| bool adv_data_changed; |
| __u16 scan_rsp_len; |
| __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; |
| bool scan_rsp_changed; |
| __u16 per_adv_data_len; |
| __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; |
| __s8 tx_power; |
| __u32 min_interval; |
| __u32 max_interval; |
| bdaddr_t random_addr; |
| bool rpa_expired; |
| struct delayed_work rpa_expired_cb; |
| }; |
| |
| #define HCI_MAX_ADV_INSTANCES 5 |
| #define HCI_DEFAULT_ADV_DURATION 2 |
| |
| #define HCI_ADV_TX_POWER_NO_PREFERENCE 0x7F |
| |
| #define DATA_CMP(_d1, _l1, _d2, _l2) \ |
| (_l1 == _l2 ? memcmp(_d1, _d2, _l1) : _l1 - _l2) |
| |
| #define ADV_DATA_CMP(_adv, _data, _len) \ |
| DATA_CMP((_adv)->adv_data, (_adv)->adv_data_len, _data, _len) |
| |
| #define SCAN_RSP_CMP(_adv, _data, _len) \ |
| DATA_CMP((_adv)->scan_rsp_data, (_adv)->scan_rsp_len, _data, _len) |
| |
| struct monitored_device { |
| struct list_head list; |
| |
| bdaddr_t bdaddr; |
| __u8 addr_type; |
| __u16 handle; |
| bool notified; |
| }; |
| |
| struct adv_pattern { |
| struct list_head list; |
| __u8 ad_type; |
| __u8 offset; |
| __u8 length; |
| __u8 value[HCI_MAX_EXT_AD_LENGTH]; |
| }; |
| |
| struct adv_rssi_thresholds { |
| __s8 low_threshold; |
| __s8 high_threshold; |
| __u16 low_threshold_timeout; |
| __u16 high_threshold_timeout; |
| __u8 sampling_period; |
| }; |
| |
| struct adv_monitor { |
| struct list_head patterns; |
| struct adv_rssi_thresholds rssi; |
| __u16 handle; |
| |
| enum { |
| ADV_MONITOR_STATE_NOT_REGISTERED, |
| ADV_MONITOR_STATE_REGISTERED, |
| ADV_MONITOR_STATE_OFFLOADED |
| } state; |
| }; |
| |
| #define HCI_MIN_ADV_MONITOR_HANDLE 1 |
| #define HCI_MAX_ADV_MONITOR_NUM_HANDLES 32 |
| #define HCI_MAX_ADV_MONITOR_NUM_PATTERNS 16 |
| #define HCI_ADV_MONITOR_EXT_NONE 1 |
| #define HCI_ADV_MONITOR_EXT_MSFT 2 |
| |
| #define HCI_MAX_SHORT_NAME_LENGTH 10 |
| |
| #define HCI_CONN_HANDLE_MAX 0x0eff |
| #define HCI_CONN_HANDLE_UNSET(_handle) (_handle > HCI_CONN_HANDLE_MAX) |
| |
| /* Min encryption key size to match with SMP */ |
| #define HCI_MIN_ENC_KEY_SIZE 7 |
| |
| /* Default LE RPA expiry time, 15 minutes */ |
| #define HCI_DEFAULT_RPA_TIMEOUT (15 * 60) |
| |
| /* Default min/max age of connection information (1s/3s) */ |
| #define DEFAULT_CONN_INFO_MIN_AGE 1000 |
| #define DEFAULT_CONN_INFO_MAX_AGE 3000 |
| /* Default authenticated payload timeout 30s */ |
| #define DEFAULT_AUTH_PAYLOAD_TIMEOUT 0x0bb8 |
| |
| #define HCI_MAX_PAGES 3 |
| |
| struct hci_dev { |
| struct list_head list; |
| struct mutex lock; |
| |
| struct ida unset_handle_ida; |
| |
| const char *name; |
| unsigned long flags; |
| __u16 id; |
| __u8 bus; |
| bdaddr_t bdaddr; |
| bdaddr_t setup_addr; |
| bdaddr_t public_addr; |
| bdaddr_t random_addr; |
| bdaddr_t static_addr; |
| __u8 adv_addr_type; |
| __u8 dev_name[HCI_MAX_NAME_LENGTH]; |
| __u8 short_name[HCI_MAX_SHORT_NAME_LENGTH]; |
| __u8 eir[HCI_MAX_EIR_LENGTH]; |
| __u16 appearance; |
| __u8 dev_class[3]; |
| __u8 major_class; |
| __u8 minor_class; |
| __u8 max_page; |
| __u8 features[HCI_MAX_PAGES][8]; |
| __u8 le_features[8]; |
| __u8 le_accept_list_size; |
| __u8 le_resolv_list_size; |
| __u8 le_num_of_adv_sets; |
| __u8 le_states[8]; |
| __u8 mesh_ad_types[16]; |
| __u8 mesh_send_ref; |
| __u8 commands[64]; |
| __u8 hci_ver; |
| __u16 hci_rev; |
| __u8 lmp_ver; |
| __u16 manufacturer; |
| __u16 lmp_subver; |
| __u16 voice_setting; |
| __u8 num_iac; |
| __u16 stored_max_keys; |
| __u16 stored_num_keys; |
| __u8 io_capability; |
| __s8 inq_tx_power; |
| __u8 err_data_reporting; |
| __u16 page_scan_interval; |
| __u16 page_scan_window; |
| __u8 page_scan_type; |
| __u8 le_adv_channel_map; |
| __u16 le_adv_min_interval; |
| __u16 le_adv_max_interval; |
| __u8 le_scan_type; |
| __u16 le_scan_interval; |
| __u16 le_scan_window; |
| __u16 le_scan_int_suspend; |
| __u16 le_scan_window_suspend; |
| __u16 le_scan_int_discovery; |
| __u16 le_scan_window_discovery; |
| __u16 le_scan_int_adv_monitor; |
| __u16 le_scan_window_adv_monitor; |
| __u16 le_scan_int_connect; |
| __u16 le_scan_window_connect; |
| __u16 le_conn_min_interval; |
| __u16 le_conn_max_interval; |
| __u16 le_conn_latency; |
| __u16 le_supv_timeout; |
| __u16 le_def_tx_len; |
| __u16 le_def_tx_time; |
| __u16 le_max_tx_len; |
| __u16 le_max_tx_time; |
| __u16 le_max_rx_len; |
| __u16 le_max_rx_time; |
| __u8 le_max_key_size; |
| __u8 le_min_key_size; |
| __u16 discov_interleaved_timeout; |
| __u16 conn_info_min_age; |
| __u16 conn_info_max_age; |
| __u16 auth_payload_timeout; |
| __u8 min_enc_key_size; |
| __u8 max_enc_key_size; |
| __u8 pairing_opts; |
| __u8 ssp_debug_mode; |
| __u8 hw_error_code; |
| __u32 clock; |
| __u16 advmon_allowlist_duration; |
| __u16 advmon_no_filter_duration; |
| __u8 enable_advmon_interleave_scan; |
| |
| __u16 devid_source; |
| __u16 devid_vendor; |
| __u16 devid_product; |
| __u16 devid_version; |
| |
| __u8 def_page_scan_type; |
| __u16 def_page_scan_int; |
| __u16 def_page_scan_window; |
| __u8 def_inq_scan_type; |
| __u16 def_inq_scan_int; |
| __u16 def_inq_scan_window; |
| __u16 def_br_lsto; |
| __u16 def_page_timeout; |
| __u16 def_multi_adv_rotation_duration; |
| __u16 def_le_autoconnect_timeout; |
| __s8 min_le_tx_power; |
| __s8 max_le_tx_power; |
| |
| __u16 pkt_type; |
| __u16 esco_type; |
| __u16 link_policy; |
| __u16 link_mode; |
| |
| __u32 idle_timeout; |
| __u16 sniff_min_interval; |
| __u16 sniff_max_interval; |
| |
| unsigned int auto_accept_delay; |
| |
| unsigned long quirks; |
| |
| atomic_t cmd_cnt; |
| unsigned int acl_cnt; |
| unsigned int sco_cnt; |
| unsigned int le_cnt; |
| unsigned int iso_cnt; |
| |
| unsigned int acl_mtu; |
| unsigned int sco_mtu; |
| unsigned int le_mtu; |
| unsigned int iso_mtu; |
| unsigned int acl_pkts; |
| unsigned int sco_pkts; |
| unsigned int le_pkts; |
| unsigned int iso_pkts; |
| |
| unsigned long acl_last_tx; |
| unsigned long le_last_tx; |
| |
| __u8 le_tx_def_phys; |
| __u8 le_rx_def_phys; |
| |
| struct workqueue_struct *workqueue; |
| struct workqueue_struct *req_workqueue; |
| |
| struct work_struct power_on; |
| struct delayed_work power_off; |
| struct work_struct error_reset; |
| struct work_struct cmd_sync_work; |
| struct list_head cmd_sync_work_list; |
| struct mutex cmd_sync_work_lock; |
| struct mutex unregister_lock; |
| struct work_struct cmd_sync_cancel_work; |
| struct work_struct reenable_adv_work; |
| |
| __u16 discov_timeout; |
| struct delayed_work discov_off; |
| |
| struct delayed_work service_cache; |
| |
| struct delayed_work cmd_timer; |
| struct delayed_work ncmd_timer; |
| |
| struct work_struct rx_work; |
| struct work_struct cmd_work; |
| struct work_struct tx_work; |
| |
| struct delayed_work le_scan_disable; |
| |
| struct sk_buff_head rx_q; |
| struct sk_buff_head raw_q; |
| struct sk_buff_head cmd_q; |
| |
| struct sk_buff *sent_cmd; |
| struct sk_buff *recv_event; |
| |
| struct mutex req_lock; |
| wait_queue_head_t req_wait_q; |
| __u32 req_status; |
| __u32 req_result; |
| struct sk_buff *req_skb; |
| struct sk_buff *req_rsp; |
| |
| void *smp_data; |
| void *smp_bredr_data; |
| |
| struct discovery_state discovery; |
| |
| bool discovery_paused; |
| int advertising_old_state; |
| bool advertising_paused; |
| |
| struct notifier_block suspend_notifier; |
| enum suspended_state suspend_state_next; |
| enum suspended_state suspend_state; |
| bool scanning_paused; |
| bool suspended; |
| u8 wake_reason; |
| bdaddr_t wake_addr; |
| u8 wake_addr_type; |
| |
| struct hci_conn_hash conn_hash; |
| |
| struct list_head mesh_pending; |
| struct list_head mgmt_pending; |
| struct list_head reject_list; |
| struct list_head accept_list; |
| struct list_head uuids; |
| struct list_head link_keys; |
| struct list_head long_term_keys; |
| struct list_head identity_resolving_keys; |
| struct list_head remote_oob_data; |
| struct list_head le_accept_list; |
| struct list_head le_resolv_list; |
| struct list_head le_conn_params; |
| struct list_head pend_le_conns; |
| struct list_head pend_le_reports; |
| struct list_head blocked_keys; |
| struct list_head local_codecs; |
| |
| struct hci_dev_stats stat; |
| |
| atomic_t promisc; |
| |
| const char *hw_info; |
| const char *fw_info; |
| struct dentry *debugfs; |
| |
| struct hci_devcoredump dump; |
| |
| struct device dev; |
| |
| struct rfkill *rfkill; |
| |
| DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); |
| hci_conn_flags_t conn_flags; |
| |
| __s8 adv_tx_power; |
| __u8 adv_data[HCI_MAX_EXT_AD_LENGTH]; |
| __u8 adv_data_len; |
| __u8 scan_rsp_data[HCI_MAX_EXT_AD_LENGTH]; |
| __u8 scan_rsp_data_len; |
| __u8 per_adv_data[HCI_MAX_PER_AD_LENGTH]; |
| __u8 per_adv_data_len; |
| |
| struct list_head adv_instances; |
| unsigned int adv_instance_cnt; |
| __u8 cur_adv_instance; |
| __u16 adv_instance_timeout; |
| struct delayed_work adv_instance_expire; |
| |
| struct idr adv_monitors_idr; |
| unsigned int adv_monitors_cnt; |
| |
| __u8 irk[16]; |
| __u32 rpa_timeout; |
| struct delayed_work rpa_expired; |
| bdaddr_t rpa; |
| |
| struct delayed_work mesh_send_done; |
| |
| enum { |
| INTERLEAVE_SCAN_NONE, |
| INTERLEAVE_SCAN_NO_FILTER, |
| INTERLEAVE_SCAN_ALLOWLIST |
| } interleave_scan_state; |
| |
| struct delayed_work interleave_scan; |
| |
| struct list_head monitored_devices; |
| bool advmon_pend_notify; |
| |
| #if IS_ENABLED(CONFIG_BT_LEDS) |
| struct led_trigger *power_led; |
| #endif |
| |
| #if IS_ENABLED(CONFIG_BT_MSFTEXT) |
| __u16 msft_opcode; |
| void *msft_data; |
| bool msft_curve_validity; |
| #endif |
| |
| #if IS_ENABLED(CONFIG_BT_AOSPEXT) |
| bool aosp_capable; |
| bool aosp_quality_report; |
| #endif |
| |
| int (*open)(struct hci_dev *hdev); |
| int (*close)(struct hci_dev *hdev); |
| int (*flush)(struct hci_dev *hdev); |
| int (*setup)(struct hci_dev *hdev); |
| int (*shutdown)(struct hci_dev *hdev); |
| int (*send)(struct hci_dev *hdev, struct sk_buff *skb); |
| void (*notify)(struct hci_dev *hdev, unsigned int evt); |
| void (*hw_error)(struct hci_dev *hdev, u8 code); |
| int (*post_init)(struct hci_dev *hdev); |
| int (*set_diag)(struct hci_dev *hdev, bool enable); |
| int (*set_bdaddr)(struct hci_dev *hdev, const bdaddr_t *bdaddr); |
| void (*cmd_timeout)(struct hci_dev *hdev); |
| void (*reset)(struct hci_dev *hdev); |
| bool (*wakeup)(struct hci_dev *hdev); |
| int (*set_quality_report)(struct hci_dev *hdev, bool enable); |
| int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path); |
| int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type, |
| struct bt_codec *codec, __u8 *vnd_len, |
| __u8 **vnd_data); |
| u8 (*classify_pkt_type)(struct hci_dev *hdev, struct sk_buff *skb); |
| }; |
| |
| #define HCI_PHY_HANDLE(handle) (handle & 0xff) |
| |
| enum conn_reasons { |
| CONN_REASON_PAIR_DEVICE, |
| CONN_REASON_L2CAP_CHAN, |
| CONN_REASON_SCO_CONNECT, |
| CONN_REASON_ISO_CONNECT, |
| }; |
| |
| struct hci_conn { |
| struct list_head list; |
| |
| atomic_t refcnt; |
| |
| bdaddr_t dst; |
| __u8 dst_type; |
| bdaddr_t src; |
| __u8 src_type; |
| bdaddr_t init_addr; |
| __u8 init_addr_type; |
| bdaddr_t resp_addr; |
| __u8 resp_addr_type; |
| __u8 adv_instance; |
| __u16 handle; |
| __u16 sync_handle; |
| __u16 state; |
| __u16 mtu; |
| __u8 mode; |
| __u8 type; |
| __u8 role; |
| bool out; |
| __u8 attempt; |
| __u8 dev_class[3]; |
| __u8 features[HCI_MAX_PAGES][8]; |
| __u16 pkt_type; |
| __u16 link_policy; |
| __u8 key_type; |
| __u8 auth_type; |
| __u8 sec_level; |
| __u8 pending_sec_level; |
| __u8 pin_length; |
| __u8 enc_key_size; |
| __u8 io_capability; |
| __u32 passkey_notify; |
| __u8 passkey_entered; |
| __u16 disc_timeout; |
| __u16 conn_timeout; |
| __u16 setting; |
| __u16 auth_payload_timeout; |
| __u16 le_conn_min_interval; |
| __u16 le_conn_max_interval; |
| __u16 le_conn_interval; |
| __u16 le_conn_latency; |
| __u16 le_supv_timeout; |
| __u8 le_adv_data[HCI_MAX_EXT_AD_LENGTH]; |
| __u8 le_adv_data_len; |
| __u8 le_per_adv_data[HCI_MAX_PER_AD_TOT_LEN]; |
| __u16 le_per_adv_data_len; |
| __u16 le_per_adv_data_offset; |
| __u8 le_adv_phy; |
| __u8 le_adv_sec_phy; |
| __u8 le_tx_phy; |
| __u8 le_rx_phy; |
| __s8 rssi; |
| __s8 tx_power; |
| __s8 max_tx_power; |
| struct bt_iso_qos iso_qos; |
| unsigned long flags; |
| |
| enum conn_reasons conn_reason; |
| __u8 abort_reason; |
| |
| __u32 clock; |
| __u16 clock_accuracy; |
| |
| unsigned long conn_info_timestamp; |
| |
| __u8 remote_cap; |
| __u8 remote_auth; |
| __u8 remote_id; |
| |
| unsigned int sent; |
| |
| struct sk_buff_head data_q; |
| struct list_head chan_list; |
| |
| struct delayed_work disc_work; |
| struct delayed_work auto_accept_work; |
| struct delayed_work idle_work; |
| struct delayed_work le_conn_timeout; |
| |
| struct device dev; |
| struct dentry *debugfs; |
| |
| struct hci_dev *hdev; |
| void *l2cap_data; |
| void *sco_data; |
| void *iso_data; |
| |
| struct list_head link_list; |
| struct hci_conn *parent; |
| struct hci_link *link; |
| |
| struct bt_codec codec; |
| |
| void (*connect_cfm_cb) (struct hci_conn *conn, u8 status); |
| void (*security_cfm_cb) (struct hci_conn *conn, u8 status); |
| void (*disconn_cfm_cb) (struct hci_conn *conn, u8 reason); |
| |
| void (*cleanup)(struct hci_conn *conn); |
| }; |
| |
| struct hci_link { |
| struct list_head list; |
| struct hci_conn *conn; |
| }; |
| |
| struct hci_chan { |
| struct list_head list; |
| __u16 handle; |
| struct hci_conn *conn; |
| struct sk_buff_head data_q; |
| unsigned int sent; |
| __u8 state; |
| }; |
| |
| struct hci_conn_params { |
| struct list_head list; |
| struct list_head action; |
| |
| bdaddr_t addr; |
| u8 addr_type; |
| |
| u16 conn_min_interval; |
| u16 conn_max_interval; |
| u16 conn_latency; |
| u16 supervision_timeout; |
| |
| enum { |
| HCI_AUTO_CONN_DISABLED, |
| HCI_AUTO_CONN_REPORT, |
| HCI_AUTO_CONN_DIRECT, |
| HCI_AUTO_CONN_ALWAYS, |
| HCI_AUTO_CONN_LINK_LOSS, |
| HCI_AUTO_CONN_EXPLICIT, |
| } auto_connect; |
| |
| struct hci_conn *conn; |
| bool explicit_connect; |
| /* Accessed without hdev->lock: */ |
| hci_conn_flags_t flags; |
| u8 privacy_mode; |
| }; |
| |
| extern struct list_head hci_dev_list; |
| extern struct list_head hci_cb_list; |
| extern rwlock_t hci_dev_list_lock; |
| extern struct mutex hci_cb_list_lock; |
| |
| #define hci_dev_set_flag(hdev, nr) set_bit((nr), (hdev)->dev_flags) |
| #define hci_dev_clear_flag(hdev, nr) clear_bit((nr), (hdev)->dev_flags) |
| #define hci_dev_change_flag(hdev, nr) change_bit((nr), (hdev)->dev_flags) |
| #define hci_dev_test_flag(hdev, nr) test_bit((nr), (hdev)->dev_flags) |
| #define hci_dev_test_and_set_flag(hdev, nr) test_and_set_bit((nr), (hdev)->dev_flags) |
| #define hci_dev_test_and_clear_flag(hdev, nr) test_and_clear_bit((nr), (hdev)->dev_flags) |
| #define hci_dev_test_and_change_flag(hdev, nr) test_and_change_bit((nr), (hdev)->dev_flags) |
| |
| #define hci_dev_clear_volatile_flags(hdev) \ |
| do { \ |
| hci_dev_clear_flag(hdev, HCI_LE_SCAN); \ |
| hci_dev_clear_flag(hdev, HCI_LE_ADV); \ |
| hci_dev_clear_flag(hdev, HCI_LL_RPA_RESOLUTION);\ |
| hci_dev_clear_flag(hdev, HCI_PERIODIC_INQ); \ |
| hci_dev_clear_flag(hdev, HCI_QUALITY_REPORT); \ |
| } while (0) |
| |
| #define hci_dev_le_state_simultaneous(hdev) \ |
| (!test_bit(HCI_QUIRK_BROKEN_LE_STATES, &hdev->quirks) && \ |
| (hdev->le_states[4] & 0x08) && /* Central */ \ |
| (hdev->le_states[4] & 0x40) && /* Peripheral */ \ |
| (hdev->le_states[3] & 0x10)) /* Simultaneous */ |
| |
| /* ----- HCI interface to upper protocols ----- */ |
| int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); |
| int l2cap_disconn_ind(struct hci_conn *hcon); |
| void l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); |
| |
| #if IS_ENABLED(CONFIG_BT_BREDR) |
| int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); |
| void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); |
| #else |
| static inline int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| __u8 *flags) |
| { |
| return 0; |
| } |
| |
| static inline void sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb) |
| { |
| } |
| #endif |
| |
| #if IS_ENABLED(CONFIG_BT_LE) |
| int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); |
| void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); |
| #else |
| static inline int iso_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| __u8 *flags) |
| { |
| return 0; |
| } |
| static inline void iso_recv(struct hci_conn *hcon, struct sk_buff *skb, |
| u16 flags) |
| { |
| } |
| #endif |
| |
| /* ----- Inquiry cache ----- */ |
| #define INQUIRY_CACHE_AGE_MAX (HZ*30) /* 30 seconds */ |
| #define INQUIRY_ENTRY_AGE_MAX (HZ*60) /* 60 seconds */ |
| |
| static inline void discovery_init(struct hci_dev *hdev) |
| { |
| hdev->discovery.state = DISCOVERY_STOPPED; |
| INIT_LIST_HEAD(&hdev->discovery.all); |
| INIT_LIST_HEAD(&hdev->discovery.unknown); |
| INIT_LIST_HEAD(&hdev->discovery.resolve); |
| hdev->discovery.report_invalid_rssi = true; |
| hdev->discovery.rssi = HCI_RSSI_INVALID; |
| } |
| |
| static inline void hci_discovery_filter_clear(struct hci_dev *hdev) |
| { |
| hdev->discovery.result_filtering = false; |
| hdev->discovery.report_invalid_rssi = true; |
| hdev->discovery.rssi = HCI_RSSI_INVALID; |
| hdev->discovery.uuid_count = 0; |
| kfree(hdev->discovery.uuids); |
| hdev->discovery.uuids = NULL; |
| } |
| |
| bool hci_discovery_active(struct hci_dev *hdev); |
| |
| void hci_discovery_set_state(struct hci_dev *hdev, int state); |
| |
| static inline int inquiry_cache_empty(struct hci_dev *hdev) |
| { |
| return list_empty(&hdev->discovery.all); |
| } |
| |
| static inline long inquiry_cache_age(struct hci_dev *hdev) |
| { |
| struct discovery_state *c = &hdev->discovery; |
| return jiffies - c->timestamp; |
| } |
| |
| static inline long inquiry_entry_age(struct inquiry_entry *e) |
| { |
| return jiffies - e->timestamp; |
| } |
| |
| struct inquiry_entry *hci_inquiry_cache_lookup(struct hci_dev *hdev, |
| bdaddr_t *bdaddr); |
| struct inquiry_entry *hci_inquiry_cache_lookup_unknown(struct hci_dev *hdev, |
| bdaddr_t *bdaddr); |
| struct inquiry_entry *hci_inquiry_cache_lookup_resolve(struct hci_dev *hdev, |
| bdaddr_t *bdaddr, |
| int state); |
| void hci_inquiry_cache_update_resolve(struct hci_dev *hdev, |
| struct inquiry_entry *ie); |
| u32 hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, |
| bool name_known); |
| void hci_inquiry_cache_flush(struct hci_dev *hdev); |
| |
| /* ----- HCI Connections ----- */ |
| enum { |
| HCI_CONN_AUTH_PEND, |
| HCI_CONN_ENCRYPT_PEND, |
| HCI_CONN_RSWITCH_PEND, |
| HCI_CONN_MODE_CHANGE_PEND, |
| HCI_CONN_SCO_SETUP_PEND, |
| HCI_CONN_MGMT_CONNECTED, |
| HCI_CONN_SSP_ENABLED, |
| HCI_CONN_SC_ENABLED, |
| HCI_CONN_AES_CCM, |
| HCI_CONN_POWER_SAVE, |
| HCI_CONN_FLUSH_KEY, |
| HCI_CONN_ENCRYPT, |
| HCI_CONN_AUTH, |
| HCI_CONN_SECURE, |
| HCI_CONN_FIPS, |
| HCI_CONN_STK_ENCRYPT, |
| HCI_CONN_AUTH_INITIATOR, |
| HCI_CONN_DROP, |
| HCI_CONN_CANCEL, |
| HCI_CONN_PARAM_REMOVAL_PEND, |
| HCI_CONN_NEW_LINK_KEY, |
| HCI_CONN_SCANNING, |
| HCI_CONN_AUTH_FAILURE, |
| HCI_CONN_PER_ADV, |
| HCI_CONN_BIG_CREATED, |
| HCI_CONN_CREATE_CIS, |
| HCI_CONN_BIG_SYNC, |
| HCI_CONN_BIG_SYNC_FAILED, |
| HCI_CONN_PA_SYNC, |
| HCI_CONN_PA_SYNC_FAILED, |
| }; |
| |
| static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) |
| { |
| struct hci_dev *hdev = conn->hdev; |
| return hci_dev_test_flag(hdev, HCI_SSP_ENABLED) && |
| test_bit(HCI_CONN_SSP_ENABLED, &conn->flags); |
| } |
| |
| static inline bool hci_conn_sc_enabled(struct hci_conn *conn) |
| { |
| struct hci_dev *hdev = conn->hdev; |
| return hci_dev_test_flag(hdev, HCI_SC_ENABLED) && |
| test_bit(HCI_CONN_SC_ENABLED, &conn->flags); |
| } |
| |
| static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| list_add_tail_rcu(&c->list, &h->list); |
| switch (c->type) { |
| case ACL_LINK: |
| h->acl_num++; |
| break; |
| case LE_LINK: |
| h->le_num++; |
| if (c->role == HCI_ROLE_SLAVE) |
| h->le_num_peripheral++; |
| break; |
| case SCO_LINK: |
| case ESCO_LINK: |
| h->sco_num++; |
| break; |
| case ISO_LINK: |
| h->iso_num++; |
| break; |
| } |
| } |
| |
| static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| |
| list_del_rcu(&c->list); |
| synchronize_rcu(); |
| |
| switch (c->type) { |
| case ACL_LINK: |
| h->acl_num--; |
| break; |
| case LE_LINK: |
| h->le_num--; |
| if (c->role == HCI_ROLE_SLAVE) |
| h->le_num_peripheral--; |
| break; |
| case SCO_LINK: |
| case ESCO_LINK: |
| h->sco_num--; |
| break; |
| case ISO_LINK: |
| h->iso_num--; |
| break; |
| } |
| } |
| |
| static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| switch (type) { |
| case ACL_LINK: |
| return h->acl_num; |
| case LE_LINK: |
| return h->le_num; |
| case SCO_LINK: |
| case ESCO_LINK: |
| return h->sco_num; |
| case ISO_LINK: |
| return h->iso_num; |
| default: |
| return 0; |
| } |
| } |
| |
| static inline unsigned int hci_conn_count(struct hci_dev *hdev) |
| { |
| struct hci_conn_hash *c = &hdev->conn_hash; |
| |
| return c->acl_num + c->sco_num + c->le_num + c->iso_num; |
| } |
| |
| static inline bool hci_conn_valid(struct hci_dev *hdev, struct hci_conn *conn) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c == conn) { |
| rcu_read_unlock(); |
| return true; |
| } |
| } |
| rcu_read_unlock(); |
| |
| return false; |
| } |
| |
| static inline __u8 hci_conn_lookup_type(struct hci_dev *hdev, __u16 handle) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| __u8 type = INVALID_LINK; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->handle == handle) { |
| type = c->type; |
| break; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return type; |
| } |
| |
| static inline struct hci_conn *hci_conn_hash_lookup_bis(struct hci_dev *hdev, |
| bdaddr_t *ba, __u8 bis) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (bacmp(&c->dst, ba) || c->type != ISO_LINK) |
| continue; |
| |
| if (c->iso_qos.bcast.bis == bis) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn * |
| hci_conn_hash_lookup_per_adv_bis(struct hci_dev *hdev, |
| bdaddr_t *ba, |
| __u8 big, __u8 bis) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (bacmp(&c->dst, ba) || c->type != ISO_LINK || |
| !test_bit(HCI_CONN_PER_ADV, &c->flags)) |
| continue; |
| |
| if (c->iso_qos.bcast.big == big && |
| c->iso_qos.bcast.bis == bis) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, |
| __u16 handle) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->handle == handle) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn *hci_conn_hash_lookup_ba(struct hci_dev *hdev, |
| __u8 type, bdaddr_t *ba) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type == type && !bacmp(&c->dst, ba)) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn *hci_conn_hash_lookup_le(struct hci_dev *hdev, |
| bdaddr_t *ba, |
| __u8 ba_type) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type != LE_LINK) |
| continue; |
| |
| if (ba_type == c->dst_type && !bacmp(&c->dst, ba)) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn *hci_conn_hash_lookup_cis(struct hci_dev *hdev, |
| bdaddr_t *ba, |
| __u8 ba_type, |
| __u8 cig, |
| __u8 id) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY)) |
| continue; |
| |
| /* Match CIG ID if set */ |
| if (cig != c->iso_qos.ucast.cig) |
| continue; |
| |
| /* Match CIS ID if set */ |
| if (id != c->iso_qos.ucast.cis) |
| continue; |
| |
| /* Match destination address if set */ |
| if (!ba || (ba_type == c->dst_type && !bacmp(&c->dst, ba))) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn *hci_conn_hash_lookup_cig(struct hci_dev *hdev, |
| __u8 handle) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type != ISO_LINK || !bacmp(&c->dst, BDADDR_ANY)) |
| continue; |
| |
| if (handle == c->iso_qos.ucast.cig) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn *hci_conn_hash_lookup_big(struct hci_dev *hdev, |
| __u8 handle) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK) |
| continue; |
| |
| if (handle == c->iso_qos.bcast.big) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn * |
| hci_conn_hash_lookup_big_state(struct hci_dev *hdev, __u8 handle, __u16 state) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (bacmp(&c->dst, BDADDR_ANY) || c->type != ISO_LINK || |
| c->state != state) |
| continue; |
| |
| if (handle == c->iso_qos.bcast.big) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn * |
| hci_conn_hash_lookup_pa_sync_big_handle(struct hci_dev *hdev, __u8 big) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type != ISO_LINK || |
| !test_bit(HCI_CONN_PA_SYNC, &c->flags)) |
| continue; |
| |
| if (c->iso_qos.bcast.big == big) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn * |
| hci_conn_hash_lookup_pa_sync_handle(struct hci_dev *hdev, __u16 sync_handle) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type != ISO_LINK) |
| continue; |
| |
| if (c->sync_handle == sync_handle) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| static inline struct hci_conn *hci_conn_hash_lookup_state(struct hci_dev *hdev, |
| __u8 type, __u16 state) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type == type && c->state == state) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| typedef void (*hci_conn_func_t)(struct hci_conn *conn, void *data); |
| static inline void hci_conn_hash_list_state(struct hci_dev *hdev, |
| hci_conn_func_t func, __u8 type, |
| __u16 state, void *data) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| if (!func) |
| return; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type == type && c->state == state) |
| func(c, data); |
| } |
| |
| rcu_read_unlock(); |
| } |
| |
| static inline void hci_conn_hash_list_flag(struct hci_dev *hdev, |
| hci_conn_func_t func, __u8 type, |
| __u8 flag, void *data) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| if (!func) |
| return; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type == type && test_bit(flag, &c->flags)) |
| func(c, data); |
| } |
| |
| rcu_read_unlock(); |
| } |
| |
| static inline struct hci_conn *hci_lookup_le_connect(struct hci_dev *hdev) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type == LE_LINK && c->state == BT_CONNECT && |
| !test_bit(HCI_CONN_SCANNING, &c->flags)) { |
| rcu_read_unlock(); |
| return c; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return NULL; |
| } |
| |
| /* Returns true if an le connection is in the scanning state */ |
| static inline bool hci_is_le_conn_scanning(struct hci_dev *hdev) |
| { |
| struct hci_conn_hash *h = &hdev->conn_hash; |
| struct hci_conn *c; |
| |
| rcu_read_lock(); |
| |
| list_for_each_entry_rcu(c, &h->list, list) { |
| if (c->type == LE_LINK && c->state == BT_CONNECT && |
| test_bit(HCI_CONN_SCANNING, &c->flags)) { |
| rcu_read_unlock(); |
| return true; |
| } |
| } |
| |
| rcu_read_unlock(); |
| |
| return false; |
| } |
| |
| int hci_disconnect(struct hci_conn *conn, __u8 reason); |
| bool hci_setup_sync(struct hci_conn *conn, __u16 handle); |
| void hci_sco_setup(struct hci_conn *conn, __u8 status); |
| bool hci_iso_setup_path(struct hci_conn *conn); |
| int hci_le_create_cis_pending(struct hci_dev *hdev); |
| int hci_conn_check_create_cis(struct hci_conn *conn); |
| |
| struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, |
| u8 role, u16 handle); |
| struct hci_conn *hci_conn_add_unset(struct hci_dev *hdev, int type, |
| bdaddr_t *dst, u8 role); |
| void hci_conn_del(struct hci_conn *conn); |
| void hci_conn_hash_flush(struct hci_dev *hdev); |
| |
| struct hci_chan *hci_chan_create(struct hci_conn *conn); |
| void hci_chan_del(struct hci_chan *chan); |
| void hci_chan_list_flush(struct hci_conn *conn); |
| struct hci_chan *hci_chan_lookup_handle(struct hci_dev *hdev, __u16 handle); |
| |
| struct hci_conn *hci_connect_le_scan(struct hci_dev *hdev, bdaddr_t *dst, |
| u8 dst_type, u8 sec_level, |
| u16 conn_timeout, |
| enum conn_reasons conn_reason); |
| struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, |
| u8 dst_type, bool dst_resolved, u8 sec_level, |
| u16 conn_timeout, u8 role, u8 phy, u8 sec_phy); |
| void hci_connect_le_scan_cleanup(struct hci_conn *conn, u8 status); |
| struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, |
| u8 sec_level, u8 auth_type, |
| enum conn_reasons conn_reason, u16 timeout); |
| struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, |
| __u16 setting, struct bt_codec *codec, |
| u16 timeout); |
| struct hci_conn *hci_bind_cis(struct hci_dev *hdev, bdaddr_t *dst, |
| __u8 dst_type, struct bt_iso_qos *qos); |
| struct hci_conn *hci_bind_bis(struct hci_dev *hdev, bdaddr_t *dst, |
| struct bt_iso_qos *qos, |
| __u8 base_len, __u8 *base); |
| struct hci_conn *hci_connect_cis(struct hci_dev *hdev, bdaddr_t *dst, |
| __u8 dst_type, struct bt_iso_qos *qos); |
| struct hci_conn *hci_connect_bis(struct hci_dev *hdev, bdaddr_t *dst, |
| __u8 dst_type, struct bt_iso_qos *qos, |
| __u8 data_len, __u8 *data); |
| struct hci_conn *hci_pa_create_sync(struct hci_dev *hdev, bdaddr_t *dst, |
| __u8 dst_type, __u8 sid, struct bt_iso_qos *qos); |
| int hci_le_big_create_sync(struct hci_dev *hdev, struct hci_conn *hcon, |
| struct bt_iso_qos *qos, |
| __u16 sync_handle, __u8 num_bis, __u8 bis[]); |
| int hci_conn_check_link_mode(struct hci_conn *conn); |
| int hci_conn_check_secure(struct hci_conn *conn, __u8 sec_level); |
| int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type, |
| bool initiator); |
| int hci_conn_switch_role(struct hci_conn *conn, __u8 role); |
| |
| void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); |
| |
| void hci_conn_failed(struct hci_conn *conn, u8 status); |
| u8 hci_conn_set_handle(struct hci_conn *conn, u16 handle); |
| |
| /* |
| * hci_conn_get() and hci_conn_put() are used to control the life-time of an |
| * "hci_conn" object. They do not guarantee that the hci_conn object is running, |
| * working or anything else. They just guarantee that the object is available |
| * and can be dereferenced. So you can use its locks, local variables and any |
| * other constant data. |
| * Before accessing runtime data, you _must_ lock the object and then check that |
| * it is still running. As soon as you release the locks, the connection might |
| * get dropped, though. |
| * |
| * On the other hand, hci_conn_hold() and hci_conn_drop() are used to control |
| * how long the underlying connection is held. So every channel that runs on the |
| * hci_conn object calls this to prevent the connection from disappearing. As |
| * long as you hold a device, you must also guarantee that you have a valid |
| * reference to the device via hci_conn_get() (or the initial reference from |
| * hci_conn_add()). |
| * The hold()/drop() ref-count is known to drop below 0 sometimes, which doesn't |
| * break because nobody cares for that. But this means, we cannot use |
| * _get()/_drop() in it, but require the caller to have a valid ref (FIXME). |
| */ |
| |
| static inline struct hci_conn *hci_conn_get(struct hci_conn *conn) |
| { |
| get_device(&conn->dev); |
| return conn; |
| } |
| |
| static inline void hci_conn_put(struct hci_conn *conn) |
| { |
| put_device(&conn->dev); |
| } |
| |
| static inline struct hci_conn *hci_conn_hold(struct hci_conn *conn) |
| { |
| BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
| |
| atomic_inc(&conn->refcnt); |
| cancel_delayed_work(&conn->disc_work); |
| |
| return conn; |
| } |
| |
| static inline void hci_conn_drop(struct hci_conn *conn) |
| { |
| BT_DBG("hcon %p orig refcnt %d", conn, atomic_read(&conn->refcnt)); |
| |
| if (atomic_dec_and_test(&conn->refcnt)) { |
| unsigned long timeo; |
| |
| switch (conn->type) { |
| case ACL_LINK: |
| case LE_LINK: |
| cancel_delayed_work(&conn->idle_work); |
| if (conn->state == BT_CONNECTED) { |
| timeo = conn->disc_timeout; |
| if (!conn->out) |
| timeo *= 2; |
| } else { |
| timeo = 0; |
| } |
| break; |
| |
| default: |
| timeo = 0; |
| break; |
| } |
| |
| cancel_delayed_work(&conn->disc_work); |
| queue_delayed_work(conn->hdev->workqueue, |
| &conn->disc_work, timeo); |
| } |
| } |
| |
| /* ----- HCI Devices ----- */ |
| static inline void hci_dev_put(struct hci_dev *d) |
| { |
| BT_DBG("%s orig refcnt %d", d->name, |
| kref_read(&d->dev.kobj.kref)); |
| |
| put_device(&d->dev); |
| } |
| |
| static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) |
| { |
| BT_DBG("%s orig refcnt %d", d->name, |
| kref_read(&d->dev.kobj.kref)); |
| |
| get_device(&d->dev); |
| return d; |
| } |
| |
| #define hci_dev_lock(d) mutex_lock(&d->lock) |
| #define hci_dev_unlock(d) mutex_unlock(&d->lock) |
| |
| #define to_hci_dev(d) container_of(d, struct hci_dev, dev) |
| #define to_hci_conn(c) container_of(c, struct hci_conn, dev) |
| |
| static inline void *hci_get_drvdata(struct hci_dev *hdev) |
| { |
| return dev_get_drvdata(&hdev->dev); |
| } |
| |
| static inline void hci_set_drvdata(struct hci_dev *hdev, void *data) |
| { |
| dev_set_drvdata(&hdev->dev, data); |
| } |
| |
| static inline void *hci_get_priv(struct hci_dev *hdev) |
| { |
| return (char *)hdev + sizeof(*hdev); |
| } |
| |
| struct hci_dev *hci_dev_get(int index); |
| struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src, u8 src_type); |
| |
| struct hci_dev *hci_alloc_dev_priv(int sizeof_priv); |
| |
| static inline struct hci_dev *hci_alloc_dev(void) |
| { |
| return hci_alloc_dev_priv(0); |
| } |
| |
| void hci_free_dev(struct hci_dev *hdev); |
| int hci_register_dev(struct hci_dev *hdev); |
| void hci_unregister_dev(struct hci_dev *hdev); |
| void hci_release_dev(struct hci_dev *hdev); |
| int hci_register_suspend_notifier(struct hci_dev *hdev); |
| int hci_unregister_suspend_notifier(struct hci_dev *hdev); |
| int hci_suspend_dev(struct hci_dev *hdev); |
| int hci_resume_dev(struct hci_dev *hdev); |
| int hci_reset_dev(struct hci_dev *hdev); |
| int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); |
| int hci_recv_diag(struct hci_dev *hdev, struct sk_buff *skb); |
| __printf(2, 3) void hci_set_hw_info(struct hci_dev *hdev, const char *fmt, ...); |
| __printf(2, 3) void hci_set_fw_info(struct hci_dev *hdev, const char *fmt, ...); |
| |
| static inline void hci_set_msft_opcode(struct hci_dev *hdev, __u16 opcode) |
| { |
| #if IS_ENABLED(CONFIG_BT_MSFTEXT) |
| hdev->msft_opcode = opcode; |
| #endif |
| } |
| |
| static inline void hci_set_aosp_capable(struct hci_dev *hdev) |
| { |
| #if IS_ENABLED(CONFIG_BT_AOSPEXT) |
| hdev->aosp_capable = true; |
| #endif |
| } |
| |
| static inline void hci_devcd_setup(struct hci_dev *hdev) |
| { |
| #ifdef CONFIG_DEV_COREDUMP |
| INIT_WORK(&hdev->dump.dump_rx, hci_devcd_rx); |
| INIT_DELAYED_WORK(&hdev->dump.dump_timeout, hci_devcd_timeout); |
| skb_queue_head_init(&hdev->dump.dump_q); |
| #endif |
| } |
| |
| int hci_dev_open(__u16 dev); |
| int hci_dev_close(__u16 dev); |
| int hci_dev_do_close(struct hci_dev *hdev); |
| int hci_dev_reset(__u16 dev); |
| int hci_dev_reset_stat(__u16 dev); |
| int hci_dev_cmd(unsigned int cmd, void __user *arg); |
| int hci_get_dev_list(void __user *arg); |
| int hci_get_dev_info(void __user *arg); |
| int hci_get_conn_list(void __user *arg); |
| int hci_get_conn_info(struct hci_dev *hdev, void __user *arg); |
| int hci_get_auth_info(struct hci_dev *hdev, void __user *arg); |
| int hci_inquiry(void __user *arg); |
| |
| struct bdaddr_list *hci_bdaddr_list_lookup(struct list_head *list, |
| bdaddr_t *bdaddr, u8 type); |
| struct bdaddr_list_with_irk *hci_bdaddr_list_lookup_with_irk( |
| struct list_head *list, bdaddr_t *bdaddr, |
| u8 type); |
| struct bdaddr_list_with_flags * |
| hci_bdaddr_list_lookup_with_flags(struct list_head *list, bdaddr_t *bdaddr, |
| u8 type); |
| int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); |
| int hci_bdaddr_list_add_with_irk(struct list_head *list, bdaddr_t *bdaddr, |
| u8 type, u8 *peer_irk, u8 *local_irk); |
| int hci_bdaddr_list_add_with_flags(struct list_head *list, bdaddr_t *bdaddr, |
| u8 type, u32 flags); |
| int hci_bdaddr_list_del(struct list_head *list, bdaddr_t *bdaddr, u8 type); |
| int hci_bdaddr_list_del_with_irk(struct list_head *list, bdaddr_t *bdaddr, |
| u8 type); |
| int hci_bdaddr_list_del_with_flags(struct list_head *list, bdaddr_t *bdaddr, |
| u8 type); |
| void hci_bdaddr_list_clear(struct list_head *list); |
| |
| struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, |
| bdaddr_t *addr, u8 addr_type); |
| struct hci_conn_params *hci_conn_params_add(struct hci_dev *hdev, |
| bdaddr_t *addr, u8 addr_type); |
| void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); |
| void hci_conn_params_clear_disabled(struct hci_dev *hdev); |
| void hci_conn_params_free(struct hci_conn_params *param); |
| |
| void hci_pend_le_list_del_init(struct hci_conn_params *param); |
| void hci_pend_le_list_add(struct hci_conn_params *param, |
| struct list_head *list); |
| struct hci_conn_params *hci_pend_le_action_lookup(struct list_head *list, |
| bdaddr_t *addr, |
| u8 addr_type); |
| |
| void hci_uuids_clear(struct hci_dev *hdev); |
| |
| void hci_link_keys_clear(struct hci_dev *hdev); |
| struct link_key *hci_find_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
| struct link_key *hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, |
| bdaddr_t *bdaddr, u8 *val, u8 type, |
| u8 pin_len, bool *persistent); |
| struct smp_ltk *hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 addr_type, u8 type, u8 authenticated, |
| u8 tk[16], u8 enc_size, __le16 ediv, __le64 rand); |
| struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 addr_type, u8 role); |
| int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 bdaddr_type); |
| void hci_smp_ltks_clear(struct hci_dev *hdev); |
| int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); |
| |
| struct smp_irk *hci_find_irk_by_rpa(struct hci_dev *hdev, bdaddr_t *rpa); |
| struct smp_irk *hci_find_irk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 addr_type); |
| struct smp_irk *hci_add_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 addr_type, u8 val[16], bdaddr_t *rpa); |
| void hci_remove_irk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type); |
| bool hci_is_blocked_key(struct hci_dev *hdev, u8 type, u8 val[16]); |
| void hci_blocked_keys_clear(struct hci_dev *hdev); |
| void hci_smp_irks_clear(struct hci_dev *hdev); |
| |
| bool hci_bdaddr_is_paired(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); |
| |
| void hci_remote_oob_data_clear(struct hci_dev *hdev); |
| struct oob_data *hci_find_remote_oob_data(struct hci_dev *hdev, |
| bdaddr_t *bdaddr, u8 bdaddr_type); |
| int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 bdaddr_type, u8 *hash192, u8 *rand192, |
| u8 *hash256, u8 *rand256); |
| int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 bdaddr_type); |
| |
| void hci_adv_instances_clear(struct hci_dev *hdev); |
| struct adv_info *hci_find_adv_instance(struct hci_dev *hdev, u8 instance); |
| struct adv_info *hci_get_next_instance(struct hci_dev *hdev, u8 instance); |
| struct adv_info *hci_add_adv_instance(struct hci_dev *hdev, u8 instance, |
| u32 flags, u16 adv_data_len, u8 *adv_data, |
| u16 scan_rsp_len, u8 *scan_rsp_data, |
| u16 timeout, u16 duration, s8 tx_power, |
| u32 min_interval, u32 max_interval, |
| u8 mesh_handle); |
| struct adv_info *hci_add_per_instance(struct hci_dev *hdev, u8 instance, |
| u32 flags, u8 data_len, u8 *data, |
| u32 min_interval, u32 max_interval); |
| int hci_set_adv_instance_data(struct hci_dev *hdev, u8 instance, |
| u16 adv_data_len, u8 *adv_data, |
| u16 scan_rsp_len, u8 *scan_rsp_data); |
| int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); |
| void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired); |
| u32 hci_adv_instance_flags(struct hci_dev *hdev, u8 instance); |
| bool hci_adv_instance_is_scannable(struct hci_dev *hdev, u8 instance); |
| |
| void hci_adv_monitors_clear(struct hci_dev *hdev); |
| void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); |
| int hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor); |
| int hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle); |
| int hci_remove_all_adv_monitor(struct hci_dev *hdev); |
| bool hci_is_adv_monitoring(struct hci_dev *hdev); |
| int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev); |
| |
| void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); |
| |
| void hci_init_sysfs(struct hci_dev *hdev); |
| void hci_conn_init_sysfs(struct hci_conn *conn); |
| void hci_conn_add_sysfs(struct hci_conn *conn); |
| void hci_conn_del_sysfs(struct hci_conn *conn); |
| |
| #define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) |
| #define GET_HCIDEV_DEV(hdev) ((hdev)->dev.parent) |
| |
| /* ----- LMP capabilities ----- */ |
| #define lmp_encrypt_capable(dev) ((dev)->features[0][0] & LMP_ENCRYPT) |
| #define lmp_rswitch_capable(dev) ((dev)->features[0][0] & LMP_RSWITCH) |
| #define lmp_hold_capable(dev) ((dev)->features[0][0] & LMP_HOLD) |
| #define lmp_sniff_capable(dev) ((dev)->features[0][0] & LMP_SNIFF) |
| #define lmp_park_capable(dev) ((dev)->features[0][1] & LMP_PARK) |
| #define lmp_inq_rssi_capable(dev) ((dev)->features[0][3] & LMP_RSSI_INQ) |
| #define lmp_esco_capable(dev) ((dev)->features[0][3] & LMP_ESCO) |
| #define lmp_bredr_capable(dev) (!((dev)->features[0][4] & LMP_NO_BREDR)) |
| #define lmp_le_capable(dev) ((dev)->features[0][4] & LMP_LE) |
| #define lmp_sniffsubr_capable(dev) ((dev)->features[0][5] & LMP_SNIFF_SUBR) |
| #define lmp_pause_enc_capable(dev) ((dev)->features[0][5] & LMP_PAUSE_ENC) |
| #define lmp_esco_2m_capable(dev) ((dev)->features[0][5] & LMP_EDR_ESCO_2M) |
| #define lmp_ext_inq_capable(dev) ((dev)->features[0][6] & LMP_EXT_INQ) |
| #define lmp_le_br_capable(dev) (!!((dev)->features[0][6] & LMP_SIMUL_LE_BR)) |
| #define lmp_ssp_capable(dev) ((dev)->features[0][6] & LMP_SIMPLE_PAIR) |
| #define lmp_no_flush_capable(dev) ((dev)->features[0][6] & LMP_NO_FLUSH) |
| #define lmp_lsto_capable(dev) ((dev)->features[0][7] & LMP_LSTO) |
| #define lmp_inq_tx_pwr_capable(dev) ((dev)->features[0][7] & LMP_INQ_TX_PWR) |
| #define lmp_ext_feat_capable(dev) ((dev)->features[0][7] & LMP_EXTFEATURES) |
| #define lmp_transp_capable(dev) ((dev)->features[0][2] & LMP_TRANSPARENT) |
| #define lmp_edr_2m_capable(dev) ((dev)->features[0][3] & LMP_EDR_2M) |
| #define lmp_edr_3m_capable(dev) ((dev)->features[0][3] & LMP_EDR_3M) |
| #define lmp_edr_3slot_capable(dev) ((dev)->features[0][4] & LMP_EDR_3SLOT) |
| #define lmp_edr_5slot_capable(dev) ((dev)->features[0][5] & LMP_EDR_5SLOT) |
| |
| /* ----- Extended LMP capabilities ----- */ |
| #define lmp_cpb_central_capable(dev) ((dev)->features[2][0] & LMP_CPB_CENTRAL) |
| #define lmp_cpb_peripheral_capable(dev) ((dev)->features[2][0] & LMP_CPB_PERIPHERAL) |
| #define lmp_sync_train_capable(dev) ((dev)->features[2][0] & LMP_SYNC_TRAIN) |
| #define lmp_sync_scan_capable(dev) ((dev)->features[2][0] & LMP_SYNC_SCAN) |
| #define lmp_sc_capable(dev) ((dev)->features[2][1] & LMP_SC) |
| #define lmp_ping_capable(dev) ((dev)->features[2][1] & LMP_PING) |
| |
| /* ----- Host capabilities ----- */ |
| #define lmp_host_ssp_capable(dev) ((dev)->features[1][0] & LMP_HOST_SSP) |
| #define lmp_host_sc_capable(dev) ((dev)->features[1][0] & LMP_HOST_SC) |
| #define lmp_host_le_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE)) |
| #define lmp_host_le_br_capable(dev) (!!((dev)->features[1][0] & LMP_HOST_LE_BREDR)) |
| |
| #define hdev_is_powered(dev) (test_bit(HCI_UP, &(dev)->flags) && \ |
| !hci_dev_test_flag(dev, HCI_AUTO_OFF)) |
| #define bredr_sc_enabled(dev) (lmp_sc_capable(dev) && \ |
| hci_dev_test_flag(dev, HCI_SC_ENABLED)) |
| #define rpa_valid(dev) (bacmp(&dev->rpa, BDADDR_ANY) && \ |
| !hci_dev_test_flag(dev, HCI_RPA_EXPIRED)) |
| #define adv_rpa_valid(adv) (bacmp(&adv->random_addr, BDADDR_ANY) && \ |
| !adv->rpa_expired) |
| |
| #define scan_1m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_1M) || \ |
| ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_1M)) |
| |
| #define le_2m_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_2M)) |
| |
| #define scan_2m(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_2M) || \ |
| ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_2M)) |
| |
| #define le_coded_capable(dev) (((dev)->le_features[1] & HCI_LE_PHY_CODED) && \ |
| !test_bit(HCI_QUIRK_BROKEN_LE_CODED, \ |
| &(dev)->quirks)) |
| |
| #define scan_coded(dev) (((dev)->le_tx_def_phys & HCI_LE_SET_PHY_CODED) || \ |
| ((dev)->le_rx_def_phys & HCI_LE_SET_PHY_CODED)) |
| |
| #define ll_privacy_capable(dev) ((dev)->le_features[0] & HCI_LE_LL_PRIVACY) |
| |
| /* Use LL Privacy based address resolution if supported */ |
| #define use_ll_privacy(dev) (ll_privacy_capable(dev) && \ |
| hci_dev_test_flag(dev, HCI_ENABLE_LL_PRIVACY)) |
| |
| #define privacy_mode_capable(dev) (use_ll_privacy(dev) && \ |
| (hdev->commands[39] & 0x04)) |
| |
| #define read_key_size_capable(dev) \ |
| ((dev)->commands[20] & 0x10 && \ |
| !test_bit(HCI_QUIRK_BROKEN_READ_ENC_KEY_SIZE, &hdev->quirks)) |
| |
| /* Use enhanced synchronous connection if command is supported and its quirk |
| * has not been set. |
| */ |
| #define enhanced_sync_conn_capable(dev) \ |
| (((dev)->commands[29] & 0x08) && \ |
| !test_bit(HCI_QUIRK_BROKEN_ENHANCED_SETUP_SYNC_CONN, &(dev)->quirks)) |
| |
| /* Use ext scanning if set ext scan param and ext scan enable is supported */ |
| #define use_ext_scan(dev) (((dev)->commands[37] & 0x20) && \ |
| ((dev)->commands[37] & 0x40) && \ |
| !test_bit(HCI_QUIRK_BROKEN_EXT_SCAN, &(dev)->quirks)) |
| |
| /* Use ext create connection if command is supported */ |
| #define use_ext_conn(dev) ((dev)->commands[37] & 0x80) |
| |
| /* Extended advertising support */ |
| #define ext_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_EXT_ADV)) |
| |
| /* Maximum advertising length */ |
| #define max_adv_len(dev) \ |
| (ext_adv_capable(dev) ? HCI_MAX_EXT_AD_LENGTH : HCI_MAX_AD_LENGTH) |
| |
| /* BLUETOOTH CORE SPECIFICATION Version 5.3 | Vol 4, Part E page 1789: |
| * |
| * C24: Mandatory if the LE Controller supports Connection State and either |
| * LE Feature (LL Privacy) or LE Feature (Extended Advertising) is supported |
| */ |
| #define use_enhanced_conn_complete(dev) (ll_privacy_capable(dev) || \ |
| ext_adv_capable(dev)) |
| |
| /* Periodic advertising support */ |
| #define per_adv_capable(dev) (((dev)->le_features[1] & HCI_LE_PERIODIC_ADV)) |
| |
| /* CIS Master/Slave and BIS support */ |
| #define iso_capable(dev) (cis_capable(dev) || bis_capable(dev)) |
| #define cis_capable(dev) \ |
| (cis_central_capable(dev) || cis_peripheral_capable(dev)) |
| #define cis_central_capable(dev) \ |
| ((dev)->le_features[3] & HCI_LE_CIS_CENTRAL) |
| #define cis_peripheral_capable(dev) \ |
| ((dev)->le_features[3] & HCI_LE_CIS_PERIPHERAL) |
| #define bis_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_BROADCASTER) |
| #define sync_recv_capable(dev) ((dev)->le_features[3] & HCI_LE_ISO_SYNC_RECEIVER) |
| |
| #define mws_transport_config_capable(dev) (((dev)->commands[30] & 0x08) && \ |
| (!test_bit(HCI_QUIRK_BROKEN_MWS_TRANSPORT_CONFIG, &(dev)->quirks))) |
| |
| /* ----- HCI protocols ----- */ |
| #define HCI_PROTO_DEFER 0x01 |
| |
| static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| __u8 type, __u8 *flags) |
| { |
| switch (type) { |
| case ACL_LINK: |
| return l2cap_connect_ind(hdev, bdaddr); |
| |
| case SCO_LINK: |
| case ESCO_LINK: |
| return sco_connect_ind(hdev, bdaddr, flags); |
| |
| case ISO_LINK: |
| return iso_connect_ind(hdev, bdaddr, flags); |
| |
| default: |
| BT_ERR("unknown link type %d", type); |
| return -EINVAL; |
| } |
| } |
| |
| static inline int hci_proto_disconn_ind(struct hci_conn *conn) |
| { |
| if (conn->type != ACL_LINK && conn->type != LE_LINK) |
| return HCI_ERROR_REMOTE_USER_TERM; |
| |
| return l2cap_disconn_ind(conn); |
| } |
| |
| /* ----- HCI callbacks ----- */ |
| struct hci_cb { |
| struct list_head list; |
| |
| char *name; |
| |
| void (*connect_cfm) (struct hci_conn *conn, __u8 status); |
| void (*disconn_cfm) (struct hci_conn *conn, __u8 status); |
| void (*security_cfm) (struct hci_conn *conn, __u8 status, |
| __u8 encrypt); |
| void (*key_change_cfm) (struct hci_conn *conn, __u8 status); |
| void (*role_switch_cfm) (struct hci_conn *conn, __u8 status, __u8 role); |
| }; |
| |
| static inline void hci_connect_cfm(struct hci_conn *conn, __u8 status) |
| { |
| struct hci_cb *cb; |
| |
| mutex_lock(&hci_cb_list_lock); |
| list_for_each_entry(cb, &hci_cb_list, list) { |
| if (cb->connect_cfm) |
| cb->connect_cfm(conn, status); |
| } |
| mutex_unlock(&hci_cb_list_lock); |
| |
| if (conn->connect_cfm_cb) |
| conn->connect_cfm_cb(conn, status); |
| } |
| |
| static inline void hci_disconn_cfm(struct hci_conn *conn, __u8 reason) |
| { |
| struct hci_cb *cb; |
| |
| mutex_lock(&hci_cb_list_lock); |
| list_for_each_entry(cb, &hci_cb_list, list) { |
| if (cb->disconn_cfm) |
| cb->disconn_cfm(conn, reason); |
| } |
| mutex_unlock(&hci_cb_list_lock); |
| |
| if (conn->disconn_cfm_cb) |
| conn->disconn_cfm_cb(conn, reason); |
| } |
| |
| static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status) |
| { |
| struct hci_cb *cb; |
| __u8 encrypt; |
| |
| if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) |
| return; |
| |
| encrypt = test_bit(HCI_CONN_ENCRYPT, &conn->flags) ? 0x01 : 0x00; |
| |
| mutex_lock(&hci_cb_list_lock); |
| list_for_each_entry(cb, &hci_cb_list, list) { |
| if (cb->security_cfm) |
| cb->security_cfm(conn, status, encrypt); |
| } |
| mutex_unlock(&hci_cb_list_lock); |
| |
| if (conn->security_cfm_cb) |
| conn->security_cfm_cb(conn, status); |
| } |
| |
| static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status) |
| { |
| struct hci_cb *cb; |
| __u8 encrypt; |
| |
| if (conn->state == BT_CONFIG) { |
| if (!status) |
| conn->state = BT_CONNECTED; |
| |
| hci_connect_cfm(conn, status); |
| hci_conn_drop(conn); |
| return; |
| } |
| |
| if (!test_bit(HCI_CONN_ENCRYPT, &conn->flags)) |
| encrypt = 0x00; |
| else if (test_bit(HCI_CONN_AES_CCM, &conn->flags)) |
| encrypt = 0x02; |
| else |
| encrypt = 0x01; |
| |
| if (!status) { |
| if (conn->sec_level == BT_SECURITY_SDP) |
| conn->sec_level = BT_SECURITY_LOW; |
| |
| if (conn->pending_sec_level > conn->sec_level) |
| conn->sec_level = conn->pending_sec_level; |
| } |
| |
| mutex_lock(&hci_cb_list_lock); |
| list_for_each_entry(cb, &hci_cb_list, list) { |
| if (cb->security_cfm) |
| cb->security_cfm(conn, status, encrypt); |
| } |
| mutex_unlock(&hci_cb_list_lock); |
| |
| if (conn->security_cfm_cb) |
| conn->security_cfm_cb(conn, status); |
| } |
| |
| static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) |
| { |
| struct hci_cb *cb; |
| |
| mutex_lock(&hci_cb_list_lock); |
| list_for_each_entry(cb, &hci_cb_list, list) { |
| if (cb->key_change_cfm) |
| cb->key_change_cfm(conn, status); |
| } |
| mutex_unlock(&hci_cb_list_lock); |
| } |
| |
| static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, |
| __u8 role) |
| { |
| struct hci_cb *cb; |
| |
| mutex_lock(&hci_cb_list_lock); |
| list_for_each_entry(cb, &hci_cb_list, list) { |
| if (cb->role_switch_cfm) |
| cb->role_switch_cfm(conn, status, role); |
| } |
| mutex_unlock(&hci_cb_list_lock); |
| } |
| |
| static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) |
| { |
| if (addr_type != ADDR_LE_DEV_RANDOM) |
| return false; |
| |
| if ((bdaddr->b[5] & 0xc0) == 0x40) |
| return true; |
| |
| return false; |
| } |
| |
| static inline bool hci_is_identity_address(bdaddr_t *addr, u8 addr_type) |
| { |
| if (addr_type == ADDR_LE_DEV_PUBLIC) |
| return true; |
| |
| /* Check for Random Static address type */ |
| if ((addr->b[5] & 0xc0) == 0xc0) |
| return true; |
| |
| return false; |
| } |
| |
| static inline struct smp_irk *hci_get_irk(struct hci_dev *hdev, |
| bdaddr_t *bdaddr, u8 addr_type) |
| { |
| if (!hci_bdaddr_is_rpa(bdaddr, addr_type)) |
| return NULL; |
| |
| return hci_find_irk_by_rpa(hdev, bdaddr); |
| } |
| |
| static inline int hci_check_conn_params(u16 min, u16 max, u16 latency, |
| u16 to_multiplier) |
| { |
| u16 max_latency; |
| |
| if (min > max) { |
| BT_WARN("min %d > max %d", min, max); |
| return -EINVAL; |
| } |
| |
| if (min < 6) { |
| BT_WARN("min %d < 6", min); |
| return -EINVAL; |
| } |
| |
| if (max > 3200) { |
| BT_WARN("max %d > 3200", max); |
| return -EINVAL; |
| } |
| |
| if (to_multiplier < 10) { |
| BT_WARN("to_multiplier %d < 10", to_multiplier); |
| return -EINVAL; |
| } |
| |
| if (to_multiplier > 3200) { |
| BT_WARN("to_multiplier %d > 3200", to_multiplier); |
| return -EINVAL; |
| } |
| |
| if (max >= to_multiplier * 8) { |
| BT_WARN("max %d >= to_multiplier %d * 8", max, to_multiplier); |
| return -EINVAL; |
| } |
| |
| max_latency = (to_multiplier * 4 / max) - 1; |
| if (latency > 499) { |
| BT_WARN("latency %d > 499", latency); |
| return -EINVAL; |
| } |
| |
| if (latency > max_latency) { |
| BT_WARN("latency %d > max_latency %d", latency, max_latency); |
| return -EINVAL; |
| } |
| |
| return 0; |
| } |
| |
| int hci_register_cb(struct hci_cb *hcb); |
| int hci_unregister_cb(struct hci_cb *hcb); |
| |
| int __hci_cmd_send(struct hci_dev *hdev, u16 opcode, u32 plen, |
| const void *param); |
| |
| int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, |
| const void *param); |
| void hci_send_acl(struct hci_chan *chan, struct sk_buff *skb, __u16 flags); |
| void hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); |
| void hci_send_iso(struct hci_conn *conn, struct sk_buff *skb); |
| |
| void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); |
| void *hci_recv_event_data(struct hci_dev *hdev, __u8 event); |
| |
| u32 hci_conn_get_phy(struct hci_conn *conn); |
| |
| /* ----- HCI Sockets ----- */ |
| void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); |
| void hci_send_to_channel(unsigned short channel, struct sk_buff *skb, |
| int flag, struct sock *skip_sk); |
| void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); |
| void hci_send_monitor_ctrl_event(struct hci_dev *hdev, u16 event, |
| void *data, u16 data_len, ktime_t tstamp, |
| int flag, struct sock *skip_sk); |
| |
| void hci_sock_dev_event(struct hci_dev *hdev, int event); |
| |
| #define HCI_MGMT_VAR_LEN BIT(0) |
| #define HCI_MGMT_NO_HDEV BIT(1) |
| #define HCI_MGMT_UNTRUSTED BIT(2) |
| #define HCI_MGMT_UNCONFIGURED BIT(3) |
| #define HCI_MGMT_HDEV_OPTIONAL BIT(4) |
| |
| struct hci_mgmt_handler { |
| int (*func) (struct sock *sk, struct hci_dev *hdev, void *data, |
| u16 data_len); |
| size_t data_len; |
| unsigned long flags; |
| }; |
| |
| struct hci_mgmt_chan { |
| struct list_head list; |
| unsigned short channel; |
| size_t handler_count; |
| const struct hci_mgmt_handler *handlers; |
| void (*hdev_init) (struct sock *sk, struct hci_dev *hdev); |
| }; |
| |
| int hci_mgmt_chan_register(struct hci_mgmt_chan *c); |
| void hci_mgmt_chan_unregister(struct hci_mgmt_chan *c); |
| |
| /* Management interface */ |
| #define DISCOV_TYPE_BREDR (BIT(BDADDR_BREDR)) |
| #define DISCOV_TYPE_LE (BIT(BDADDR_LE_PUBLIC) | \ |
| BIT(BDADDR_LE_RANDOM)) |
| #define DISCOV_TYPE_INTERLEAVED (BIT(BDADDR_BREDR) | \ |
| BIT(BDADDR_LE_PUBLIC) | \ |
| BIT(BDADDR_LE_RANDOM)) |
| |
| /* These LE scan and inquiry parameters were chosen according to LE General |
| * Discovery Procedure specification. |
| */ |
| #define DISCOV_LE_SCAN_WIN 0x0012 /* 11.25 msec */ |
| #define DISCOV_LE_SCAN_INT 0x0012 /* 11.25 msec */ |
| #define DISCOV_LE_SCAN_INT_FAST 0x0060 /* 60 msec */ |
| #define DISCOV_LE_SCAN_WIN_FAST 0x0030 /* 30 msec */ |
| #define DISCOV_LE_SCAN_INT_CONN 0x0060 /* 60 msec */ |
| #define DISCOV_LE_SCAN_WIN_CONN 0x0060 /* 60 msec */ |
| #define DISCOV_LE_SCAN_INT_SLOW1 0x0800 /* 1.28 sec */ |
| #define DISCOV_LE_SCAN_WIN_SLOW1 0x0012 /* 11.25 msec */ |
| #define DISCOV_LE_SCAN_INT_SLOW2 0x1000 /* 2.56 sec */ |
| #define DISCOV_LE_SCAN_WIN_SLOW2 0x0024 /* 22.5 msec */ |
| #define DISCOV_CODED_SCAN_INT_FAST 0x0120 /* 180 msec */ |
| #define DISCOV_CODED_SCAN_WIN_FAST 0x0090 /* 90 msec */ |
| #define DISCOV_CODED_SCAN_INT_SLOW1 0x1800 /* 3.84 sec */ |
| #define DISCOV_CODED_SCAN_WIN_SLOW1 0x0036 /* 33.75 msec */ |
| #define DISCOV_CODED_SCAN_INT_SLOW2 0x3000 /* 7.68 sec */ |
| #define DISCOV_CODED_SCAN_WIN_SLOW2 0x006c /* 67.5 msec */ |
| #define DISCOV_LE_TIMEOUT 10240 /* msec */ |
| #define DISCOV_INTERLEAVED_TIMEOUT 5120 /* msec */ |
| #define DISCOV_INTERLEAVED_INQUIRY_LEN 0x04 |
| #define DISCOV_BREDR_INQUIRY_LEN 0x08 |
| #define DISCOV_LE_RESTART_DELAY msecs_to_jiffies(200) /* msec */ |
| #define DISCOV_LE_FAST_ADV_INT_MIN 0x00A0 /* 100 msec */ |
| #define DISCOV_LE_FAST_ADV_INT_MAX 0x00F0 /* 150 msec */ |
| #define DISCOV_LE_PER_ADV_INT_MIN 0x00A0 /* 200 msec */ |
| #define DISCOV_LE_PER_ADV_INT_MAX 0x00A0 /* 200 msec */ |
| #define DISCOV_LE_ADV_MESH_MIN 0x00A0 /* 100 msec */ |
| #define DISCOV_LE_ADV_MESH_MAX 0x00A0 /* 100 msec */ |
| #define INTERVAL_TO_MS(x) (((x) * 10) / 0x10) |
| |
| #define NAME_RESOLVE_DURATION msecs_to_jiffies(10240) /* 10.24 sec */ |
| |
| void mgmt_fill_version_info(void *ver); |
| int mgmt_new_settings(struct hci_dev *hdev); |
| void mgmt_index_added(struct hci_dev *hdev); |
| void mgmt_index_removed(struct hci_dev *hdev); |
| void mgmt_set_powered_failed(struct hci_dev *hdev, int err); |
| void mgmt_power_on(struct hci_dev *hdev, int err); |
| void __mgmt_power_off(struct hci_dev *hdev); |
| void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, |
| bool persistent); |
| void mgmt_device_connected(struct hci_dev *hdev, struct hci_conn *conn, |
| u8 *name, u8 name_len); |
| void mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type, u8 reason, |
| bool mgmt_connected); |
| void mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type, u8 status); |
| void mgmt_connect_failed(struct hci_dev *hdev, struct hci_conn *conn, |
| u8 status); |
| void mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); |
| void mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 status); |
| void mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 status); |
| int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type, u32 value, |
| u8 confirm_hint); |
| int mgmt_user_confirm_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type, u8 status); |
| int mgmt_user_confirm_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type, u8 status); |
| int mgmt_user_passkey_request(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type); |
| int mgmt_user_passkey_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type, u8 status); |
| int mgmt_user_passkey_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type, u8 status); |
| int mgmt_user_passkey_notify(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 link_type, u8 addr_type, u32 passkey, |
| u8 entered); |
| void mgmt_auth_failed(struct hci_conn *conn, u8 status); |
| void mgmt_auth_enable_complete(struct hci_dev *hdev, u8 status); |
| void mgmt_set_class_of_dev_complete(struct hci_dev *hdev, u8 *dev_class, |
| u8 status); |
| void mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); |
| void mgmt_start_discovery_complete(struct hci_dev *hdev, u8 status); |
| void mgmt_stop_discovery_complete(struct hci_dev *hdev, u8 status); |
| void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
| u8 addr_type, u8 *dev_class, s8 rssi, u32 flags, |
| u8 *eir, u16 eir_len, u8 *scan_rsp, u8 scan_rsp_len, |
| u64 instant); |
| void mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, |
| u8 addr_type, s8 rssi, u8 *name, u8 name_len); |
| void mgmt_discovering(struct hci_dev *hdev, u8 discovering); |
| void mgmt_suspending(struct hci_dev *hdev, u8 state); |
| void mgmt_resuming(struct hci_dev *hdev, u8 reason, bdaddr_t *bdaddr, |
| u8 addr_type); |
| bool mgmt_powering_down(struct hci_dev *hdev); |
| void mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, bool persistent); |
| void mgmt_new_irk(struct hci_dev *hdev, struct smp_irk *irk, bool persistent); |
| void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, |
| bool persistent); |
| void mgmt_new_conn_param(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 bdaddr_type, u8 store_hint, u16 min_interval, |
| u16 max_interval, u16 latency, u16 timeout); |
| void mgmt_smp_complete(struct hci_conn *conn, bool complete); |
| bool mgmt_get_connectable(struct hci_dev *hdev); |
| u8 mgmt_get_adv_discov_flags(struct hci_dev *hdev); |
| void mgmt_advertising_added(struct sock *sk, struct hci_dev *hdev, |
| u8 instance); |
| void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev, |
| u8 instance); |
| void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle); |
| int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip); |
| void mgmt_adv_monitor_device_lost(struct hci_dev *hdev, u16 handle, |
| bdaddr_t *bdaddr, u8 addr_type); |
| |
| int hci_abort_conn(struct hci_conn *conn, u8 reason); |
| u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency, |
| u16 to_multiplier); |
| void hci_le_start_enc(struct hci_conn *conn, __le16 ediv, __le64 rand, |
| __u8 ltk[16], __u8 key_size); |
| |
| void hci_copy_identity_address(struct hci_dev *hdev, bdaddr_t *bdaddr, |
| u8 *bdaddr_type); |
| |
| #define SCO_AIRMODE_MASK 0x0003 |
| #define SCO_AIRMODE_CVSD 0x0000 |
| #define SCO_AIRMODE_TRANSP 0x0003 |
| |
| #define LOCAL_CODEC_ACL_MASK BIT(0) |
| #define LOCAL_CODEC_SCO_MASK BIT(1) |
| |
| #define TRANSPORT_TYPE_MAX 0x04 |
| |
| #endif /* __HCI_CORE_H */ |
