diff options
Diffstat (limited to 'include/net/bluetooth/hci_core.h')
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 1194 |
1 files changed, 930 insertions, 264 deletions
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index 7b86094a894..b386bf17e6c 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -1,6 +1,6 @@ -/* +/* BlueZ - Bluetooth protocol stack for Linux - Copyright (C) 2000-2001 Qualcomm Incorporated + Copyright (c) 2000-2001, 2010, Code Aurora Forum. All rights reserved. Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com> @@ -12,13 +12,13 @@ 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 + 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 + ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS, + COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS SOFTWARE IS DISCLAIMED. */ @@ -27,9 +27,8 @@ #include <net/bluetooth/hci.h> -/* HCI upper protocols */ -#define HCI_PROTO_L2CAP 0 -#define HCI_PROTO_SCO 1 +/* HCI priority */ +#define HCI_PRIO_MAX 7 /* HCI Core structures */ struct inquiry_data { @@ -44,43 +43,175 @@ struct inquiry_data { }; struct inquiry_entry { - struct inquiry_entry *next; + 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 inquiry_cache { - spinlock_t lock; +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; - struct inquiry_entry *list; + bdaddr_t last_adv_addr; + u8 last_adv_addr_type; + s8 last_adv_rssi; + u8 last_adv_data[HCI_MAX_AD_LENGTH]; + u8 last_adv_data_len; }; struct hci_conn_hash { struct list_head list; - spinlock_t lock; unsigned int acl_num; + unsigned int amp_num; unsigned int sco_num; + unsigned int le_num; }; +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 master; + u8 val[16]; +}; + +struct smp_ltk { + struct list_head list; + 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; + bdaddr_t rpa; + bdaddr_t bdaddr; + u8 addr_type; + u8 val[16]; +}; + +struct link_key { + struct list_head list; + 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 hash192[16]; + u8 randomizer192[16]; + u8 hash256[16]; + u8 randomizer256[16]; +}; + +#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 + +#define NUM_REASSEMBLY 4 struct hci_dev { struct list_head list; - spinlock_t lock; - atomic_t refcnt; + struct mutex lock; char name[8]; unsigned long flags; __u16 id; - __u8 type; + __u8 bus; + __u8 dev_type; bdaddr_t bdaddr; - __u8 dev_name[248]; + 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]; __u8 dev_class[3]; - __u8 features[8]; + __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 ssp_mode; __u8 hci_ver; __u16 hci_rev; + __u8 lmp_ver; __u16 manufacturer; + __u16 lmp_subver; __u16 voice_setting; + __u8 num_iac; + __u8 io_capability; + __s8 inq_tx_power; + __u16 page_scan_interval; + __u16 page_scan_window; + __u8 page_scan_type; + __u8 le_adv_channel_map; + __u8 le_scan_type; + __u16 le_scan_interval; + __u16 le_scan_window; + __u16 le_conn_min_interval; + __u16 le_conn_max_interval; + __u16 discov_interleaved_timeout; + __u16 conn_info_min_age; + __u16 conn_info_max_age; + __u8 ssp_debug_mode; + + __u16 devid_source; + __u16 devid_vendor; + __u16 devid_product; + __u16 devid_version; __u16 pkt_type; __u16 esco_type; @@ -91,143 +222,268 @@ struct hci_dev { __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 cmd_last_tx; 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; + + __u16 discov_timeout; + struct delayed_work discov_off; + + struct delayed_work service_cache; - struct tasklet_struct cmd_task; - struct tasklet_struct rx_task; - struct tasklet_struct tx_task; + struct timer_list cmd_timer; + + struct work_struct rx_work; + struct work_struct cmd_work; + struct work_struct tx_work; struct sk_buff_head rx_q; struct sk_buff_head raw_q; struct sk_buff_head cmd_q; + struct sk_buff *recv_evt; struct sk_buff *sent_cmd; - struct sk_buff *reassembly[3]; + struct sk_buff *reassembly[NUM_REASSEMBLY]; struct mutex req_lock; wait_queue_head_t req_wait_q; __u32 req_status; __u32 req_result; - struct inquiry_cache inq_cache; + struct crypto_blkcipher *tfm_aes; + + struct discovery_state discovery; struct hci_conn_hash conn_hash; - struct hci_dev_stats stat; + struct list_head mgmt_pending; + struct list_head blacklist; + 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 sk_buff_head driver_init; + struct hci_dev_stats stat; - void *driver_data; - void *core_data; + atomic_t promisc; - atomic_t promisc; + struct dentry *debugfs; - struct device *parent; struct device dev; struct rfkill *rfkill; - struct module *owner; + unsigned long dev_flags; + + struct delayed_work le_scan_disable; + + __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; + + __u8 irk[16]; + __u32 rpa_timeout; + struct delayed_work rpa_expired; + bdaddr_t rpa; int (*open)(struct hci_dev *hdev); int (*close)(struct hci_dev *hdev); int (*flush)(struct hci_dev *hdev); - int (*send)(struct sk_buff *skb); - void (*destruct)(struct hci_dev *hdev); + int (*setup)(struct hci_dev *hdev); + int (*send)(struct hci_dev *hdev, struct sk_buff *skb); void (*notify)(struct hci_dev *hdev, unsigned int evt); - int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); }; +#define HCI_PHY_HANDLE(handle) (handle & 0xff) + struct hci_conn { struct list_head list; - atomic_t refcnt; - spinlock_t lock; - - bdaddr_t dst; - __u16 handle; - __u16 state; - __u8 mode; - __u8 type; - __u8 out; - __u8 attempt; - __u8 dev_class[3]; - __u8 features[8]; - __u8 ssp_mode; - __u16 interval; - __u16 pkt_type; - __u16 link_policy; - __u32 link_mode; - __u8 auth_type; - __u8 sec_level; - __u8 power_save; - __u16 disc_timeout; - unsigned long pend; - - unsigned int sent; + atomic_t refcnt; - struct sk_buff_head data_q; + 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; + bool out; + __u8 attempt; + __u8 dev_class[3]; + __u8 features[HCI_MAX_PAGES][8]; + __u16 pkt_type; + __u16 link_policy; + __u32 link_mode; + __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 setting; + __u16 le_conn_min_interval; + __u16 le_conn_max_interval; + __s8 rssi; + __s8 tx_power; + __s8 max_tx_power; + unsigned long flags; - struct timer_list disc_timer; - struct timer_list idle_timer; + unsigned long conn_info_timestamp; - struct work_struct work_add; - struct work_struct work_del; + __u8 remote_cap; + __u8 remote_auth; + __u8 remote_id; + bool flush_key; + + 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; - atomic_t devref; struct hci_dev *hdev; void *l2cap_data; void *sco_data; - void *priv; + void *smp_conn; + 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; + + bdaddr_t addr; + u8 addr_type; + + u16 conn_min_interval; + u16 conn_max_interval; + + enum { + HCI_AUTO_CONN_DISABLED, + HCI_AUTO_CONN_ALWAYS, + HCI_AUTO_CONN_LINK_LOSS, + } auto_connect; }; -extern struct hci_proto *hci_proto[]; extern struct list_head hci_dev_list; extern struct list_head hci_cb_list; extern rwlock_t hci_dev_list_lock; extern rwlock_t hci_cb_list_lock; -/* ----- Inquiry cache ----- */ -#define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds -#define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds +/* ----- HCI interface to upper protocols ----- */ +int l2cap_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr); +void l2cap_connect_cfm(struct hci_conn *hcon, u8 status); +int l2cap_disconn_ind(struct hci_conn *hcon); +void l2cap_disconn_cfm(struct hci_conn *hcon, u8 reason); +int l2cap_security_cfm(struct hci_conn *hcon, u8 status, u8 encrypt); +int l2cap_recv_acldata(struct hci_conn *hcon, struct sk_buff *skb, u16 flags); -#define inquiry_cache_lock(c) spin_lock(&c->lock) -#define inquiry_cache_unlock(c) spin_unlock(&c->lock) -#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock) -#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock) +int sco_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 *flags); +void sco_connect_cfm(struct hci_conn *hcon, __u8 status); +void sco_disconn_cfm(struct hci_conn *hcon, __u8 reason); +int sco_recv_scodata(struct hci_conn *hcon, struct sk_buff *skb); -static inline void inquiry_cache_init(struct hci_dev *hdev) +/* ----- 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) { - struct inquiry_cache *c = &hdev->inq_cache; - spin_lock_init(&c->lock); - c->list = NULL; + hdev->discovery.state = DISCOVERY_STOPPED; + INIT_LIST_HEAD(&hdev->discovery.all); + INIT_LIST_HEAD(&hdev->discovery.unknown); + INIT_LIST_HEAD(&hdev->discovery.resolve); } +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) { - struct inquiry_cache *c = &hdev->inq_cache; - return (c->list == NULL); + return list_empty(&hdev->discovery.all); } static inline long inquiry_cache_age(struct hci_dev *hdev) { - struct inquiry_cache *c = &hdev->inq_cache; + struct discovery_state *c = &hdev->discovery; return jiffies - c->timestamp; } @@ -236,175 +492,325 @@ 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); -void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data); +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); +bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, + bool name_known, bool *ssp); +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_LE_SMP_PEND, + HCI_CONN_MGMT_CONNECTED, + HCI_CONN_SSP_ENABLED, + HCI_CONN_SC_ENABLED, + HCI_CONN_AES_CCM, + HCI_CONN_POWER_SAVE, + HCI_CONN_REMOTE_OOB, + HCI_CONN_6LOWPAN, }; -static inline void hci_conn_hash_init(struct hci_dev *hdev) +static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) { - struct hci_conn_hash *h = &hdev->conn_hash; - INIT_LIST_HEAD(&h->list); - spin_lock_init(&h->lock); - h->acl_num = 0; - h->sco_num = 0; + struct hci_dev *hdev = conn->hdev; + return test_bit(HCI_SSP_ENABLED, &hdev->dev_flags) && + 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 test_bit(HCI_SC_ENABLED, &hdev->dev_flags) && + 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(&c->list, &h->list); - if (c->type == ACL_LINK) + list_add_rcu(&c->list, &h->list); + switch (c->type) { + case ACL_LINK: h->acl_num++; - else + break; + case AMP_LINK: + h->amp_num++; + break; + case LE_LINK: + h->le_num++; + 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(&c->list); - if (c->type == ACL_LINK) + + list_del_rcu(&c->list); + synchronize_rcu(); + + switch (c->type) { + case ACL_LINK: h->acl_num--; - else + break; + case AMP_LINK: + h->amp_num--; + break; + case LE_LINK: + h->le_num--; + 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 struct hci_conn *hci_conn_hash_lookup_handle(struct hci_dev *hdev, - __u16 handle) + __u16 handle) { struct hci_conn_hash *h = &hdev->conn_hash; - struct list_head *p; struct hci_conn *c; - list_for_each(p, &h->list) { - c = list_entry(p, struct hci_conn, list); - if (c->handle == handle) + 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) + __u8 type, bdaddr_t *ba) { struct hci_conn_hash *h = &hdev->conn_hash; - struct list_head *p; struct hci_conn *c; - list_for_each(p, &h->list) { - c = list_entry(p, struct hci_conn, list); - if (c->type == type && !bacmp(&c->dst, ba)) + 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_state(struct hci_dev *hdev, - __u8 type, __u16 state) + __u8 type, __u16 state) { struct hci_conn_hash *h = &hdev->conn_hash; - struct list_head *p; struct hci_conn *c; - list_for_each(p, &h->list) { - c = list_entry(p, struct hci_conn, list); - if (c->type == type && c->state == state) + 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; } -void hci_acl_connect(struct hci_conn *conn); -void hci_acl_disconn(struct hci_conn *conn, __u8 reason); -void hci_add_sco(struct hci_conn *conn, __u16 handle); -void hci_setup_sync(struct hci_conn *conn, __u16 handle); +void 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); 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_conn *hci_connect(struct hci_dev *hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type); +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(struct hci_dev *hdev, bdaddr_t *dst, + u8 dst_type, u8 sec_level, u8 auth_type); +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); int hci_conn_change_link_key(struct hci_conn *conn); int hci_conn_switch_role(struct hci_conn *conn, __u8 role); -void hci_conn_enter_active_mode(struct hci_conn *conn); -void hci_conn_enter_sniff_mode(struct hci_conn *conn); +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 void hci_conn_get(struct hci_conn *conn) +{ + get_device(&conn->dev); +} -void hci_conn_hold_device(struct hci_conn *conn); -void hci_conn_put_device(struct hci_conn *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); - del_timer(&conn->disc_timer); + cancel_delayed_work(&conn->disc_work); } -static inline void hci_conn_put(struct hci_conn *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; - if (conn->type == ACL_LINK) { - del_timer(&conn->idle_timer); + + switch (conn->type) { + case ACL_LINK: + case LE_LINK: + cancel_delayed_work(&conn->idle_work); if (conn->state == BT_CONNECTED) { - timeo = msecs_to_jiffies(conn->disc_timeout); + timeo = conn->disc_timeout; if (!conn->out) timeo *= 2; - } else + } else { timeo = msecs_to_jiffies(10); - } else + } + break; + + case AMP_LINK: + timeo = conn->disc_timeout; + break; + + default: timeo = msecs_to_jiffies(10); - mod_timer(&conn->disc_timer, jiffies + timeo); + 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) +static inline void hci_dev_put(struct hci_dev *d) { - if (atomic_dec_and_test(&d->refcnt)) - d->destruct(d); -} + BT_DBG("%s orig refcnt %d", d->name, + atomic_read(&d->dev.kobj.kref.refcount)); -static inline void hci_dev_put(struct hci_dev *d) -{ - __hci_dev_put(d); - module_put(d->owner); + put_device(&d->dev); } -static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) +static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) { - atomic_inc(&d->refcnt); + BT_DBG("%s orig refcnt %d", d->name, + atomic_read(&d->dev.kobj.kref.refcount)); + + get_device(&d->dev); return d; } -static inline struct hci_dev *hci_dev_hold(struct hci_dev *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) { - if (try_module_get(d->owner)) - return __hci_dev_hold(d); - return NULL; + return dev_get_drvdata(&hdev->dev); } -#define hci_dev_lock(d) spin_lock(&d->lock) -#define hci_dev_unlock(d) spin_unlock(&d->lock) -#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock) -#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock) +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 *src, bdaddr_t *dst); +struct hci_dev *hci_get_route(bdaddr_t *dst, bdaddr_t *src); struct hci_dev *hci_alloc_dev(void); void hci_free_dev(struct hci_dev *hdev); int hci_register_dev(struct hci_dev *hdev); -int hci_unregister_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_dev_open(__u16 dev); @@ -419,229 +825,476 @@ 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_blacklist_lookup(struct hci_dev *hdev, + bdaddr_t *bdaddr, u8 type); +int hci_blacklist_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); +int hci_blacklist_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); + +struct bdaddr_list *hci_white_list_lookup(struct hci_dev *hdev, + bdaddr_t *bdaddr, u8 type); +void hci_white_list_clear(struct hci_dev *hdev); +int hci_white_list_add(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); +int hci_white_list_del(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); + +struct hci_conn_params *hci_conn_params_lookup(struct hci_dev *hdev, + bdaddr_t *addr, u8 addr_type); +int hci_conn_params_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type, + u8 auto_connect, u16 conn_min_interval, + u16 conn_max_interval); +void hci_conn_params_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); +void hci_conn_params_clear(struct hci_dev *hdev); + +struct bdaddr_list *hci_pend_le_conn_lookup(struct hci_dev *hdev, + bdaddr_t *addr, u8 addr_type); +void hci_pend_le_conn_add(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); +void hci_pend_le_conn_del(struct hci_dev *hdev, bdaddr_t *addr, u8 addr_type); +void hci_pend_le_conns_clear(struct hci_dev *hdev); + +void hci_update_background_scan(struct hci_dev *hdev); + +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); +int hci_add_link_key(struct hci_dev *hdev, struct hci_conn *conn, int new_key, + bdaddr_t *bdaddr, u8 *val, u8 type, u8 pin_len); +struct smp_ltk *hci_find_ltk(struct hci_dev *hdev, __le16 ediv, __le64 rand, + bool master); +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_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 addr_type, bool master); +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); + +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); +int hci_add_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 *hash, u8 *randomizer); +int hci_add_remote_oob_ext_data(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 *hash192, u8 *randomizer192, + u8 *hash256, u8 *randomizer256); +int hci_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); + void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); -int hci_recv_frame(struct sk_buff *skb); +int hci_recv_frame(struct hci_dev *hdev, struct sk_buff *skb); int hci_recv_fragment(struct hci_dev *hdev, int type, void *data, int count); +int hci_recv_stream_fragment(struct hci_dev *hdev, void *data, int count); -int hci_register_sysfs(struct hci_dev *hdev); -void hci_unregister_sysfs(struct hci_dev *hdev); +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)->parent = (pdev)) +#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->dev.parent = (pdev)) /* ----- LMP capabilities ----- */ -#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH) -#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT) -#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF) -#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR) -#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO) -#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR) +#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)) /* ----- HCI protocols ----- */ -struct hci_proto { - char *name; - unsigned int id; - unsigned long flags; +#define HCI_PROTO_DEFER 0x01 - void *priv; - - int (*connect_ind) (struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type); - int (*connect_cfm) (struct hci_conn *conn, __u8 status); - int (*disconn_ind) (struct hci_conn *conn); - int (*disconn_cfm) (struct hci_conn *conn, __u8 reason); - int (*recv_acldata) (struct hci_conn *conn, struct sk_buff *skb, __u16 flags); - int (*recv_scodata) (struct hci_conn *conn, struct sk_buff *skb); - int (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); -}; - -static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, __u8 type) +static inline int hci_proto_connect_ind(struct hci_dev *hdev, bdaddr_t *bdaddr, + __u8 type, __u8 *flags) { - register struct hci_proto *hp; - int mask = 0; + switch (type) { + case ACL_LINK: + return l2cap_connect_ind(hdev, bdaddr); - hp = hci_proto[HCI_PROTO_L2CAP]; - if (hp && hp->connect_ind) - mask |= hp->connect_ind(hdev, bdaddr, type); + case SCO_LINK: + case ESCO_LINK: + return sco_connect_ind(hdev, bdaddr, flags); - hp = hci_proto[HCI_PROTO_SCO]; - if (hp && hp->connect_ind) - mask |= hp->connect_ind(hdev, bdaddr, type); - - return mask; + default: + BT_ERR("unknown link type %d", type); + return -EINVAL; + } } static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status) { - register struct hci_proto *hp; - - hp = hci_proto[HCI_PROTO_L2CAP]; - if (hp && hp->connect_cfm) - hp->connect_cfm(conn, status); + switch (conn->type) { + case ACL_LINK: + case LE_LINK: + l2cap_connect_cfm(conn, status); + break; + + case SCO_LINK: + case ESCO_LINK: + sco_connect_cfm(conn, status); + break; + + default: + BT_ERR("unknown link type %d", conn->type); + break; + } - hp = hci_proto[HCI_PROTO_SCO]; - if (hp && hp->connect_cfm) - hp->connect_cfm(conn, status); + if (conn->connect_cfm_cb) + conn->connect_cfm_cb(conn, status); } static inline int hci_proto_disconn_ind(struct hci_conn *conn) { - register struct hci_proto *hp; - int reason = 0x13; - - hp = hci_proto[HCI_PROTO_L2CAP]; - if (hp && hp->disconn_ind) - reason = hp->disconn_ind(conn); + if (conn->type != ACL_LINK && conn->type != LE_LINK) + return HCI_ERROR_REMOTE_USER_TERM; - hp = hci_proto[HCI_PROTO_SCO]; - if (hp && hp->disconn_ind) - reason = hp->disconn_ind(conn); - - return reason; + return l2cap_disconn_ind(conn); } static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason) { - register struct hci_proto *hp; - - hp = hci_proto[HCI_PROTO_L2CAP]; - if (hp && hp->disconn_cfm) - hp->disconn_cfm(conn, reason); + switch (conn->type) { + case ACL_LINK: + case LE_LINK: + l2cap_disconn_cfm(conn, reason); + break; + + case SCO_LINK: + case ESCO_LINK: + sco_disconn_cfm(conn, reason); + break; + + /* L2CAP would be handled for BREDR chan */ + case AMP_LINK: + break; + + default: + BT_ERR("unknown link type %d", conn->type); + break; + } - hp = hci_proto[HCI_PROTO_SCO]; - if (hp && hp->disconn_cfm) - hp->disconn_cfm(conn, reason); + if (conn->disconn_cfm_cb) + conn->disconn_cfm_cb(conn, reason); } static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status) { - register struct hci_proto *hp; __u8 encrypt; - if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) + if (conn->type != ACL_LINK && conn->type != LE_LINK) return; - encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; + if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) + return; - hp = hci_proto[HCI_PROTO_L2CAP]; - if (hp && hp->security_cfm) - hp->security_cfm(conn, status, encrypt); + encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; + l2cap_security_cfm(conn, status, encrypt); - hp = hci_proto[HCI_PROTO_SCO]; - if (hp && hp->security_cfm) - hp->security_cfm(conn, status, encrypt); + if (conn->security_cfm_cb) + conn->security_cfm_cb(conn, status); } -static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) +static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, + __u8 encrypt) { - register struct hci_proto *hp; + if (conn->type != ACL_LINK && conn->type != LE_LINK) + return; - hp = hci_proto[HCI_PROTO_L2CAP]; - if (hp && hp->security_cfm) - hp->security_cfm(conn, status, encrypt); + l2cap_security_cfm(conn, status, encrypt); - hp = hci_proto[HCI_PROTO_SCO]; - if (hp && hp->security_cfm) - hp->security_cfm(conn, status, encrypt); + if (conn->security_cfm_cb) + conn->security_cfm_cb(conn, status); } -int hci_register_proto(struct hci_proto *hproto); -int hci_unregister_proto(struct hci_proto *hproto); - /* ----- HCI callbacks ----- */ struct hci_cb { struct list_head list; char *name; - void (*security_cfm) (struct hci_conn *conn, __u8 status, __u8 encrypt); + 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_auth_cfm(struct hci_conn *conn, __u8 status) { - struct list_head *p; + struct hci_cb *cb; __u8 encrypt; hci_proto_auth_cfm(conn, status); - if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) + if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags)) return; encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; - read_lock_bh(&hci_cb_list_lock); - list_for_each(p, &hci_cb_list) { - struct hci_cb *cb = list_entry(p, struct hci_cb, list); + read_lock(&hci_cb_list_lock); + list_for_each_entry(cb, &hci_cb_list, list) { if (cb->security_cfm) cb->security_cfm(conn, status, encrypt); } - read_unlock_bh(&hci_cb_list_lock); + read_unlock(&hci_cb_list_lock); } -static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt) +static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, + __u8 encrypt) { - struct list_head *p; + 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; + hci_proto_encrypt_cfm(conn, status, encrypt); - read_lock_bh(&hci_cb_list_lock); - list_for_each(p, &hci_cb_list) { - struct hci_cb *cb = list_entry(p, struct hci_cb, list); + read_lock(&hci_cb_list_lock); + list_for_each_entry(cb, &hci_cb_list, list) { if (cb->security_cfm) cb->security_cfm(conn, status, encrypt); } - read_unlock_bh(&hci_cb_list_lock); + read_unlock(&hci_cb_list_lock); } static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) { - struct list_head *p; + struct hci_cb *cb; - read_lock_bh(&hci_cb_list_lock); - list_for_each(p, &hci_cb_list) { - struct hci_cb *cb = list_entry(p, struct hci_cb, list); + read_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); } - read_unlock_bh(&hci_cb_list_lock); + read_unlock(&hci_cb_list_lock); } -static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role) +static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, + __u8 role) { - struct list_head *p; + struct hci_cb *cb; - read_lock_bh(&hci_cb_list_lock); - list_for_each(p, &hci_cb_list) { - struct hci_cb *cb = list_entry(p, struct hci_cb, list); + read_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); } - read_unlock_bh(&hci_cb_list_lock); + read_unlock(&hci_cb_list_lock); +} + +static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) +{ + size_t parsed = 0; + + if (data_len < 2) + return false; + + while (parsed < data_len - 1) { + u8 field_len = data[0]; + + if (field_len == 0) + break; + + parsed += field_len + 1; + + if (parsed > data_len) + break; + + if (data[1] == type) + return true; + + data += field_len + 1; + } + + return false; +} + +static inline bool hci_bdaddr_is_rpa(bdaddr_t *bdaddr, u8 addr_type) +{ + if (addr_type != 0x01) + return false; + + if ((bdaddr->b[5] & 0xc0) == 0x40) + 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); } int hci_register_cb(struct hci_cb *hcb); int hci_unregister_cb(struct hci_cb *hcb); -int hci_register_notifier(struct notifier_block *nb); -int hci_unregister_notifier(struct notifier_block *nb); +struct hci_request { + struct hci_dev *hdev; + struct sk_buff_head cmd_q; -int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); -int hci_send_acl(struct hci_conn *conn, struct sk_buff *skb, __u16 flags); -int hci_send_sco(struct hci_conn *conn, struct sk_buff *skb); + /* If something goes wrong when building the HCI request, the error + * value is stored in this field. + */ + int err; +}; -void *hci_sent_cmd_data(struct hci_dev *hdev, __u16 opcode); +void hci_req_init(struct hci_request *req, struct hci_dev *hdev); +int hci_req_run(struct hci_request *req, hci_req_complete_t complete); +void hci_req_add(struct hci_request *req, u16 opcode, u32 plen, + const void *param); +void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, + const void *param, u8 event); +void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status); + +void hci_req_add_le_scan_disable(struct hci_request *req); +void hci_req_add_le_passive_scan(struct hci_request *req); -void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); +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); /* ----- HCI Sockets ----- */ void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb); +void hci_send_to_control(struct sk_buff *skb, struct sock *skip_sk); +void hci_send_to_monitor(struct hci_dev *hdev, struct sk_buff *skb); + +void hci_sock_dev_event(struct hci_dev *hdev, int event); + +/* 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 + +int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); +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); +int mgmt_powered(struct hci_dev *hdev, u8 powered); +void mgmt_discoverable_timeout(struct hci_dev *hdev); +void mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); +void mgmt_connectable(struct hci_dev *hdev, u8 connectable); +void mgmt_advertising(struct hci_dev *hdev, u8 advertising); +void mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); +void mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, + bool persistent); +void mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u32 flags, u8 *name, u8 name_len, + u8 *dev_class); +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_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, 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_sc_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_read_local_oob_data_complete(struct hci_dev *hdev, u8 *hash192, + u8 *randomizer192, u8 *hash256, + u8 *randomizer256, u8 status); +void mgmt_device_found(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u8 *dev_class, s8 rssi, u8 cfm_name, + u8 ssp, 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); +int mgmt_device_blocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); +int mgmt_device_unblocked(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 type); +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); +void mgmt_new_csrk(struct hci_dev *hdev, struct smp_csrk *csrk, + bool persistent); +void mgmt_reenable_advertising(struct hci_dev *hdev); +void mgmt_smp_complete(struct hci_conn *conn, bool complete); /* HCI info for socket */ #define hci_pi(sk) ((struct hci_pinfo *) sk) @@ -651,6 +1304,7 @@ struct hci_pinfo { struct hci_dev *hdev; struct hci_filter filter; __u32 cmsg_mask; + unsigned short channel; }; /* HCI security filter */ @@ -670,6 +1324,18 @@ struct hci_sec_filter { #define hci_req_lock(d) mutex_lock(&d->req_lock) #define hci_req_unlock(d) mutex_unlock(&d->req_lock) -void hci_req_complete(struct hci_dev *hdev, int result); +void 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]); + +int hci_update_random_address(struct hci_request *req, bool require_privacy, + u8 *own_addr_type); +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 */ |