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Diffstat (limited to 'include/net/bluetooth/hci_core.h')
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 1543 |
1 files changed, 1543 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h new file mode 100644 index 0000000..13bfdc1 --- /dev/null +++ b/include/net/bluetooth/hci_core.h @@ -0,0 +1,1543 @@ +/* + BlueZ - Bluetooth protocol stack for Linux + Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. + + 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/leds.h> +#include <linux/rculist.h> + +#include <net/bluetooth/hci.h> +#include <net/bluetooth/hci_sock.h> + +/* HCI priority */ +#define HCI_PRIO_MAX 7 + +/* 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_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 scan_start; + unsigned long scan_duration; +}; + +struct hci_conn_hash { + struct list_head list; + unsigned int acl_num; + unsigned int amp_num; + unsigned int sco_num; + unsigned int le_num; + unsigned int le_num_slave; +}; + +struct bdaddr_list { + struct list_head list; + bdaddr_t bdaddr; + u8 bdaddr_type; +}; + +struct bt_uuid { + struct list_head list; + u8 uuid[16]; + u8 size; + u8 svc_hint; +}; + +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 pending; + __u8 instance; + __u32 flags; + __u16 timeout; + __u16 remaining_time; + __u16 duration; + __u16 adv_data_len; + __u8 adv_data[HCI_MAX_AD_LENGTH]; + __u16 scan_rsp_len; + __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; +}; + +#define HCI_MAX_ADV_INSTANCES 5 +#define HCI_DEFAULT_ADV_DURATION 2 + +#define HCI_MAX_SHORT_NAME_LENGTH 10 + +/* 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 + +struct amp_assoc { + __u16 len; + __u16 offset; + __u16 rem_len; + __u16 len_so_far; + __u8 data[HCI_MAX_AMP_ASSOC_SIZE]; +}; + +#define HCI_MAX_PAGES 3 + +struct hci_dev { + struct list_head list; + struct mutex lock; + + char name[8]; + unsigned long flags; + __u16 id; + __u8 bus; + __u8 dev_type; + 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_white_list_size; + __u8 le_states[8]; + __u8 commands[64]; + __u8 hci_ver; + __u16 hci_rev; + __u8 lmp_ver; + __u16 manufacturer; + __u16 lmp_subver; + __u16 voice_setting; + __u8 num_iac; + __u8 stored_max_keys; + __u8 stored_num_keys; + __u8 io_capability; + __s8 inq_tx_power; + __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_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; + __u16 discov_interleaved_timeout; + __u16 conn_info_min_age; + __u16 conn_info_max_age; + __u8 ssp_debug_mode; + __u8 hw_error_code; + __u32 clock; + + __u16 devid_source; + __u16 devid_vendor; + __u16 devid_product; + __u16 devid_version; + + __u16 pkt_type; + __u16 esco_type; + __u16 link_policy; + __u16 link_mode; + + __u32 idle_timeout; + __u16 sniff_min_interval; + __u16 sniff_max_interval; + + __u8 amp_status; + __u32 amp_total_bw; + __u32 amp_max_bw; + __u32 amp_min_latency; + __u32 amp_max_pdu; + __u8 amp_type; + __u16 amp_pal_cap; + __u16 amp_assoc_size; + __u32 amp_max_flush_to; + __u32 amp_be_flush_to; + + struct amp_assoc loc_assoc; + + __u8 flow_ctl_mode; + + 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 acl_mtu; + unsigned int sco_mtu; + unsigned int le_mtu; + unsigned int acl_pkts; + unsigned int sco_pkts; + unsigned int le_pkts; + + __u16 block_len; + __u16 block_mtu; + __u16 num_blocks; + __u16 block_cnt; + + unsigned long acl_last_tx; + unsigned long sco_last_tx; + unsigned long le_last_tx; + + struct workqueue_struct *workqueue; + struct workqueue_struct *req_workqueue; + + struct work_struct power_on; + struct delayed_work power_off; + struct work_struct error_reset; + + __u16 discov_timeout; + struct delayed_work discov_off; + + struct delayed_work service_cache; + + struct delayed_work cmd_timer; + + struct work_struct rx_work; + struct work_struct cmd_work; + struct work_struct tx_work; + + struct work_struct discov_update; + struct work_struct bg_scan_update; + struct work_struct scan_update; + struct work_struct connectable_update; + struct work_struct discoverable_update; + struct delayed_work le_scan_disable; + struct delayed_work le_scan_restart; + + struct sk_buff_head rx_q; + struct sk_buff_head raw_q; + struct sk_buff_head cmd_q; + + struct sk_buff *sent_cmd; + + struct mutex req_lock; + wait_queue_head_t req_wait_q; + __u32 req_status; + __u32 req_result; + struct sk_buff *req_skb; + + void *smp_data; + void *smp_bredr_data; + + struct discovery_state discovery; + struct hci_conn_hash conn_hash; + + struct list_head mgmt_pending; + struct list_head blacklist; + struct list_head whitelist; + 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_white_list; + struct list_head le_conn_params; + struct list_head pend_le_conns; + struct list_head pend_le_reports; + + struct hci_dev_stats stat; + + atomic_t promisc; + + const char *hw_info; + const char *fw_info; + struct dentry *debugfs; + + struct device dev; + + struct rfkill *rfkill; + + DECLARE_BITMAP(dev_flags, __HCI_NUM_FLAGS); + + __s8 adv_tx_power; + __u8 adv_data[HCI_MAX_AD_LENGTH]; + __u8 adv_data_len; + __u8 scan_rsp_data[HCI_MAX_AD_LENGTH]; + __u8 scan_rsp_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; + + __u8 irk[16]; + __u32 rpa_timeout; + struct delayed_work rpa_expired; + bdaddr_t rpa; + +#if IS_ENABLED(CPTCFG_BT_LEDS) + struct led_trigger *power_led; +#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); +}; + +#define HCI_PHY_HANDLE(handle) (handle & 0xff) + +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; + __u16 handle; + __u16 state; + __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 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_AD_LENGTH]; + __u8 le_adv_data_len; + __s8 rssi; + __s8 tx_power; + __s8 max_tx_power; + unsigned long flags; + + __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 work_struct le_scan_cleanup; + + struct device dev; + struct dentry *debugfs; + + struct hci_dev *hdev; + void *l2cap_data; + void *sco_data; + struct amp_mgr *amp_mgr; + + struct hci_conn *link; + + 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); +}; + +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; +}; + +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_PERIODIC_INQ); \ + } while (0) + +/* ----- 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(CPTCFG_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 + +/* ----- 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; + hdev->discovery.scan_start = 0; + hdev->discovery.scan_duration = 0; +} + +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_REAUTH_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_PARAM_REMOVAL_PEND, + HCI_CONN_NEW_LINK_KEY, + HCI_CONN_SCANNING, + HCI_CONN_AUTH_FAILURE, +}; + +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_rcu(&c->list, &h->list); + switch (c->type) { + case ACL_LINK: + h->acl_num++; + break; + case AMP_LINK: + h->amp_num++; + break; + case LE_LINK: + h->le_num++; + if (c->role == HCI_ROLE_SLAVE) + h->le_num_slave++; + break; + case SCO_LINK: + case ESCO_LINK: + h->sco_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 AMP_LINK: + h->amp_num--; + break; + case LE_LINK: + h->le_num--; + if (c->role == HCI_ROLE_SLAVE) + h->le_num_slave--; + break; + case SCO_LINK: + case ESCO_LINK: + h->sco_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 AMP_LINK: + return h->amp_num; + case LE_LINK: + return h->le_num; + case SCO_LINK: + case ESCO_LINK: + return h->sco_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->amp_num + c->sco_num + c->le_num; +} + +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_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_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; +} + +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; +} + +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); + +struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, bdaddr_t *dst, + u8 role); +int hci_conn_del(struct hci_conn *conn); +void hci_conn_hash_flush(struct hci_dev *hdev); +void hci_conn_check_pending(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); +struct hci_conn *hci_connect_le(struct hci_dev *hdev, bdaddr_t *dst, + u8 dst_type, u8 sec_level, u16 conn_timeout, + u8 role); +struct hci_conn *hci_connect_acl(struct hci_dev *hdev, bdaddr_t *dst, + u8 sec_level, u8 auth_type); +struct hci_conn *hci_connect_sco(struct hci_dev *hdev, int type, bdaddr_t *dst, + __u16 setting); +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_le_conn_failed(struct hci_conn *conn, u8 status); + +/* + * 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 void 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); +} + +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; + + case AMP_LINK: + timeo = conn->disc_timeout; + 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); +} + +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(void); +void hci_free_dev(struct hci_dev *hdev); +int hci_register_dev(struct hci_dev *hdev); +void hci_unregister_dev(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, ...); +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); +int hci_bdaddr_list_add(struct list_head *list, bdaddr_t *bdaddr, u8 type); +int hci_bdaddr_list_del(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); + +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); +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); +int 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); +int hci_remove_adv_instance(struct hci_dev *hdev, u8 instance); + +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)) + +/* ----- 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_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) + +/* ----- Extended LMP capabilities ----- */ +#define lmp_csb_master_capable(dev) ((dev)->features[2][0] & LMP_CSB_MASTER) +#define lmp_csb_slave_capable(dev) ((dev)->features[2][0] & LMP_CSB_SLAVE) +#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)) + +/* ----- 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); + + 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, + __u8 encrypt) +{ + struct hci_cb *cb; + + 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 void *eir_get_data(u8 *eir, size_t eir_len, u8 type, + size_t *data_len) +{ + size_t parsed = 0; + + if (eir_len < 2) + return NULL; + + while (parsed < eir_len - 1) { + u8 field_len = eir[0]; + + if (field_len == 0) + break; + + parsed += field_len + 1; + + if (parsed > eir_len) + break; + + if (eir[1] != type) { + eir += field_len + 1; + continue; + } + + /* Zero length data */ + if (field_len == 1) + return NULL; + + if (data_len) + *data_len = field_len - 1; + + return &eir[2]; + } + + return NULL; +} + +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 || min < 6 || max > 3200) + return -EINVAL; + + if (to_multiplier < 10 || to_multiplier > 3200) + return -EINVAL; + + if (max >= to_multiplier * 8) + return -EINVAL; + + max_latency = (to_multiplier * 4 / max) - 1; + if (latency > 499 || latency > max_latency) + return -EINVAL; + + return 0; +} + +int hci_register_cb(struct hci_cb *hcb); +int hci_unregister_cb(struct hci_cb *hcb); + +struct sk_buff *__hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, + const void *param, u32 timeout); +struct sk_buff *__hci_cmd_sync_ev(struct hci_dev *hdev, u16 opcode, u32 plen, + const void *param, u8 event, u32 timeout); + +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_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); + +struct sk_buff *hci_cmd_sync(struct hci_dev *hdev, u16 opcode, u32 plen, + const void *param, u32 timeout); + +/* ----- 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) + +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 0x12 +#define DISCOV_LE_SCAN_INT 0x12 +#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 */ + +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, + u32 flags, 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, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, 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_ssp_enable_complete(struct hci_dev *hdev, u8 enable, 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); +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); +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); +void mgmt_set_connectable_complete(struct hci_dev *hdev, u8 status); +void mgmt_set_discoverable_complete(struct hci_dev *hdev, u8 status); +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); + +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 + +#endif /* __HCI_CORE_H */ |