diff options
Diffstat (limited to 'include/net/bluetooth/hci_core_mgmt.h')
-rw-r--r-- | include/net/bluetooth/hci_core_mgmt.h | 1117 |
1 files changed, 1117 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci_core_mgmt.h b/include/net/bluetooth/hci_core_mgmt.h new file mode 100644 index 0000000..e24e8b5 --- /dev/null +++ b/include/net/bluetooth/hci_core_mgmt.h @@ -0,0 +1,1117 @@ +/* + 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 <net/bluetooth/hci.h> + +/* HCI priority */ +#define HCI_PRIO_MAX 7 + +/* HCI upper protocols */ +#define HCI_PROTO_L2CAP 0 +#define HCI_PROTO_SCO 1 + +/* 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 { + enum { + DISCOVERY_STOPPED, + DISCOVERY_STARTING, + DISCOVERY_INQUIRY, + DISCOVERY_LE_SCAN, + 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 hci_conn_hash { + struct list_head list; + spinlock_t lock; + unsigned int acl_num; + unsigned int sco_num; + unsigned int le_num; +}; + +struct bdaddr_list { + struct list_head list; + bdaddr_t bdaddr; +}; + +struct bt_uuid { + struct list_head list; + u8 uuid[16]; + u8 svc_hint; +}; + +struct key_master_id { + __le16 ediv; + u8 rand[8]; +} __packed; + +struct link_key_data { + bdaddr_t bdaddr; + u8 type; + u8 val[16]; + u8 pin_len; + u8 dlen; + u8 data[0]; +} __packed; + +struct smp_ltk { + struct list_head list; + bdaddr_t bdaddr; + u8 bdaddr_type; + u8 authenticated; + u8 type; + u8 enc_size; + __le16 ediv; + u8 rand[8]; + u8 val[16]; +} __packed; + +struct link_key { + struct list_head list; + bdaddr_t bdaddr; + u8 type; + u8 val[16]; + u8 pin_len; + u8 dlen; + u8 data[0]; +}; + +struct oob_data { + struct list_head list; + bdaddr_t bdaddr; + u8 hash[16]; + u8 randomizer[16]; +}; + +struct adv_entry { + struct list_head list; + bdaddr_t bdaddr; + u8 bdaddr_type; +}; + +struct le_scan_params { + u8 type; + u16 interval; + u16 window; + int timeout; +}; + +#define NUM_REASSEMBLY 4 +struct hci_dev { + struct list_head list; + spinlock_t lock; + atomic_t refcnt; + + char name[8]; + unsigned long flags; + __u16 id; + __u8 bus; + __u8 dev_type; + bdaddr_t bdaddr; + __u8 dev_name[HCI_MAX_NAME_LENGTH]; + __u8 eir[HCI_MAX_EIR_LENGTH]; + __u8 dev_class[3]; + __u8 major_class; + __u8 minor_class; + __u8 features[8]; + __u8 extfeatures[8]; + __u8 commands[64]; + __u8 ssp_mode; + __u8 hci_ver; + __u16 hci_rev; + __u8 lmp_ver; + __u16 manufacturer; + __le16 lmp_subver; + __u16 voice_setting; + __u8 io_capability; + + __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; + + /* wbs flag */ + __s8 is_wbs; + + 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; + + unsigned long acl_last_tx; + unsigned long sco_last_tx; + unsigned long le_last_tx; + + struct workqueue_struct *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 timer_list cmd_timer; + struct tasklet_struct cmd_task; + struct tasklet_struct rx_task; + struct tasklet_struct tx_task; + + 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 *reassembly[NUM_REASSEMBLY]; + + struct mutex req_lock; + wait_queue_head_t req_wait_q; + __u32 req_status; + __u32 req_result; + + __u16 init_last_cmd; + + struct list_head mgmt_pending; + + struct crypto_blkcipher *tfm; + + struct discovery_state discovery; + struct hci_conn_hash conn_hash; + struct list_head blacklist; + + struct list_head uuids; + + struct list_head link_keys; + + struct list_head long_term_keys; + + struct list_head remote_oob_data; + + struct list_head adv_entries; + struct timer_list adv_timer; + /* struct delayed_work adv_work; */ + + struct hci_dev_stats stat; + + struct sk_buff_head driver_init; + + void *driver_data; + void *core_data; + + 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; + + struct work_struct le_scan; + struct le_scan_params le_scan_params; + + 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); + void (*notify)(struct hci_dev *hdev, unsigned int evt); + int (*ioctl)(struct hci_dev *hdev, unsigned int cmd, unsigned long arg); +/* Samsung Bluetooth Feature.2012.01.19 + * Add wake_peer uart operation which is called before starting UART TX + */ + void (*wake_peer)(struct hci_dev *); +}; + +struct hci_conn { + struct list_head list; + + atomic_t refcnt; + + bdaddr_t dst; + __u8 dst_type; + __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 key_type; + __u8 auth_type; + __u8 sec_level; + __u8 pending_sec_level; + __u8 pin_length; + __u8 enc_key_size; + __u8 io_capability; + __u8 power_save; + __u16 disc_timeout; + unsigned long flags; + + __u8 remote_cap; + __u8 remote_oob; + __u8 remote_auth; + + unsigned int sent; + + struct sk_buff_head data_q; + + struct timer_list disc_timer; + struct timer_list idle_timer; + struct timer_list auto_accept_timer; + struct timer_list encrypt_timer; + + struct work_struct work_add; + struct work_struct work_del; + + struct device dev; + atomic_t devref; + + struct hci_dev *hdev; + void *l2cap_data; + void *sco_data; + void *smp_conn; + + 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); +}; + +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 */ + +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); +} + +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); +bool hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data, + bool name_known); + +/* ----- 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_POWER_SAVE, + HCI_CONN_REMOTE_OOB, +}; + +static inline bool hci_conn_ssp_enabled(struct hci_conn *conn) +{ + struct hci_dev *hdev = conn->hdev; + return (test_bit(HCI_SSP_ENABLED, &hdev->flags) && + test_bit(HCI_CONN_SSP_ENABLED, &conn->flags)); +} + +static inline void hci_conn_hash_init(struct hci_dev *hdev) +{ + 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; + h->le_num = 0; +} + +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); + switch (c->type) { + case ACL_LINK: + h->acl_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); + switch (c->type) { + case ACL_LINK: + h->acl_num--; + break; + case LE_LINK: + h->le_num--; + break; + case SCO_LINK: + case ESCO_LINK: + h->sco_num--; + break; + } +} + +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 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) + return c; + } + 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 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)) + return c; + } + 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 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) + return c; + } + 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_sco_setup(struct hci_conn *conn, __u8 status); + +struct hci_conn *hci_conn_add(struct hci_dev *hdev, int type, + __u16 pkt_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, + __u16 pkt_type, bdaddr_t *dst, + __u8 sec_level, __u8 auth_type); +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); + +int hci_conn_change_policy(struct hci_conn *conn, __u8 policy); +int hci_conn_set_encrypt(struct hci_conn *conn, __u8 enable); + + +void hci_conn_enter_active_mode(struct hci_conn *conn, __u8 force_active); +void hci_conn_enter_sniff_mode(struct hci_conn *conn); + +void hci_conn_hold_device(struct hci_conn *conn); +void hci_conn_put_device(struct hci_conn *conn); + +static inline void hci_conn_hold(struct hci_conn *conn) +{ + atomic_inc(&conn->refcnt); + del_timer(&conn->disc_timer); +} + +static inline void hci_conn_put(struct hci_conn *conn) +{ + if (atomic_dec_and_test(&conn->refcnt)) { + unsigned long timeo; + + if (conn->type == ACL_LINK || conn->type == LE_LINK) { + del_timer(&conn->idle_timer); + if (conn->state == BT_CONNECTED) { + timeo = msecs_to_jiffies(conn->disc_timeout); + if (!conn->out) + timeo *= 20; + } else { + timeo = msecs_to_jiffies(10); + } + } else { + timeo = msecs_to_jiffies(10); + } + mod_timer(&conn->disc_timer, jiffies + timeo); + } +} + +/* ----- HCI Devices ----- */ +static inline void __hci_dev_put(struct hci_dev *d) +{ + if (atomic_dec_and_test(&d->refcnt)) + d->destruct(d); +} + +static inline void hci_dev_put(struct hci_dev *d) +{ + __hci_dev_put(d); + module_put(d->owner); +} + +static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d) +{ + atomic_inc(&d->refcnt); + return d; +} + +static inline struct hci_dev *hci_dev_hold(struct hci_dev *d) +{ + if (try_module_get(d->owner)) + return __hci_dev_hold(d); + return NULL; +} + +#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) + +struct hci_dev *hci_dev_get(int index); +struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst); + +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); +int hci_suspend_dev(struct hci_dev *hdev); +int hci_resume_dev(struct hci_dev *hdev); +int hci_dev_open(__u16 dev); +int hci_dev_close(__u16 dev); +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_blacklist_lookup(struct hci_dev *hdev, bdaddr_t *bdaddr); +int hci_blacklist_clear(struct hci_dev *hdev); + +/* sync from bluez git */ +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); + +int hci_uuids_clear(struct hci_dev *hdev); + +int 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, u8 rand[8]); +struct link_key *hci_find_link_key_type(struct hci_dev *hdev, + bdaddr_t *bdaddr, u8 type); +int hci_add_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 addr_type, u8 type, + int new_key, u8 authenticated, u8 tk[16], + u8 enc_size, u16 ediv, u8 rand[8]); +struct smp_ltk *hci_find_ltk_by_addr(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 addr_type); +int hci_remove_ltk(struct hci_dev *hdev, bdaddr_t *bdaddr); +int hci_smp_ltks_clear(struct hci_dev *hdev); +int hci_remove_link_key(struct hci_dev *hdev, bdaddr_t *bdaddr); + +int 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_remove_remote_oob_data(struct hci_dev *hdev, bdaddr_t *bdaddr); + +#define ADV_CLEAR_TIMEOUT (3*60*HZ) /* Three minutes */ +int hci_adv_entries_clear(struct hci_dev *hdev); +struct adv_entry *hci_find_adv_entry(struct hci_dev *hdev, bdaddr_t *bdaddr); +int hci_add_adv_entry(struct hci_dev *hdev, + struct hci_ev_le_advertising_info *ev); + +void hci_del_off_timer(struct hci_dev *hdev); + +void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb); + +int hci_recv_frame(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_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)) + +/* ----- 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_no_flush_capable(dev) ((dev)->features[6] & LMP_NO_FLUSH) +#define lmp_le_capable(dev) ((dev)->features[4] & LMP_LE) + +/* ----- Extended LMP capabilities ----- */ +#define lmp_host_le_capable(dev) ((dev)->extfeatures[0] & LMP_HOST_LE) + +/* ----- HCI protocols ----- */ +struct hci_proto { + char *name; + unsigned int id; + unsigned long flags; + + 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) +{ + register struct hci_proto *hp; + int mask = 0; + + hp = hci_proto[HCI_PROTO_L2CAP]; + if (hp && hp->connect_ind) + mask |= hp->connect_ind(hdev, bdaddr, type); + + hp = hci_proto[HCI_PROTO_SCO]; + if (hp && hp->connect_ind) + mask |= hp->connect_ind(hdev, bdaddr, type); + + return mask; +} + +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); + + 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); + + hp = hci_proto[HCI_PROTO_SCO]; + if (hp && hp->disconn_ind) + reason = hp->disconn_ind(conn); + + return reason; +} + +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); + + 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->flags)) + return; + + encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00; + + hp = hci_proto[HCI_PROTO_L2CAP]; + if (hp && hp->security_cfm) + hp->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) +{ + register struct hci_proto *hp; + + hp = hci_proto[HCI_PROTO_L2CAP]; + if (hp && hp->security_cfm) + hp->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 (*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; + __u8 encrypt; + + hci_proto_auth_cfm(conn, status); + + 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); + if (cb->security_cfm) + cb->security_cfm(conn, status, encrypt); + } + read_unlock_bh(&hci_cb_list_lock); +} + +static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, + __u8 encrypt) +{ + struct list_head *p; + + 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); + if (cb->security_cfm) + cb->security_cfm(conn, status, encrypt); + } + read_unlock_bh(&hci_cb_list_lock); +} + +static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status) +{ + struct list_head *p; + + 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); + if (cb->key_change_cfm) + cb->key_change_cfm(conn, status); + } + read_unlock_bh(&hci_cb_list_lock); +} + +static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, + __u8 role) +{ + struct list_head *p; + + 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); + if (cb->role_switch_cfm) + cb->role_switch_cfm(conn, status, role); + } + read_unlock_bh(&hci_cb_list_lock); +} + +static inline bool eir_has_data_type(u8 *data, size_t data_len, u8 type) +{ + u8 field_len; + size_t parsed; + +/* + * for (parsed = 0; parsed < data_len - 1; parsed += field_len) { + */ + for (parsed = 0; parsed < data_len - 1; ) { + field_len = data[0]; + +/* + * if (field_len == 0) + */ + if (field_len == 0 && data[1] == 0) + break; + + parsed += field_len + 1; + + if (parsed > data_len) + break; + if (data[1] == type) { + if (field_len == 0) + return false; + else + return true; + } + + data += field_len + 1; + } + + return false; +} + +static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type, u8 *data, + u8 data_len) +{ + eir[eir_len++] = sizeof(type) + data_len; + eir[eir_len++] = type; + memcpy(&eir[eir_len], data, data_len); + eir_len += data_len; + + return eir_len; +} + +/* for eir length */ +static inline size_t eir_length(u8 *eir, size_t maxlen) +{ + u8 field_len; + size_t parsed; + size_t length; + + for (parsed = 0, length = 0; parsed < maxlen - 1; ) { + field_len = eir[0]; + +/* + * if (field_len == 0) + */ + if (field_len == 0 && eir[1] == 0) + break; + + parsed += field_len + 1; + + if (parsed > maxlen) + break; + + length = parsed; + eir += field_len + 1; + } + + return length; +} + + +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); + +int hci_send_cmd(struct hci_dev *hdev, __u16 opcode, __u32 plen, void *param); +void hci_send_acl(struct hci_conn *conn, 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); + +void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data); + +/* ----- HCI Sockets ----- */ +void hci_send_to_sock(struct hci_dev *hdev, struct sk_buff *skb, + struct sock *skip_sk); + +/* Management interface */ +int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len); +int mgmt_index_added(struct hci_dev *hdev); +int mgmt_index_removed(struct hci_dev *hdev); +int mgmt_powered(struct hci_dev *hdev, u8 powered); +int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable); +int mgmt_connectable(struct hci_dev *hdev, u8 connectable); +int mgmt_write_scan_failed(struct hci_dev *hdev, u8 scan, u8 status); +int mgmt_new_link_key(struct hci_dev *hdev, struct link_key *key, + u8 persistent); +int mgmt_device_connected(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u8 *name, u8 name_len, + u8 *dev_class); +int mgmt_device_disconnected(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 link_type, u8 addr_type); +int mgmt_disconnect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 link_type, u8 addr_type, u8 status); +int mgmt_connect_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u8 status); +int mgmt_pin_code_request(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 secure); +int mgmt_pin_code_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 status); +int mgmt_pin_code_neg_reply_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 status); +/* for passkey notification */ +int mgmt_user_passkey_notification(struct hci_dev *hdev, bdaddr_t *bdaddr, __le32 value); + +int mgmt_user_confirm_request(struct hci_dev *hdev, bdaddr_t *bdaddr, + u8 link_type, u8 addr_type, __le32 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_auth_failed(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, u8 status); +int mgmt_set_local_name_complete(struct hci_dev *hdev, u8 *name, u8 status); +int mgmt_read_local_oob_data_reply_complete(struct hci_dev *hdev, u8 *hash, + u8 *randomizer, u8 status); +int 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 *eir, u16 eir_len); +int mgmt_remote_name(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 link_type, + u8 addr_type, s8 rssi, u8 *name, u8 name_len); +int mgmt_start_discovery_failed(struct hci_dev *hdev, u8 status); +int mgmt_stop_discovery_failed(struct hci_dev *hdev, u8 status); +int 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); +int mgmt_new_ltk(struct hci_dev *hdev, struct smp_ltk *key, u8 persistent); + +int mgmt_encrypt_change(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 status); +int mgmt_le_enable_complete(struct hci_dev *hdev, u8 enable, u8 status); +int mgmt_remote_version(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 ver, u16 mnf, + u16 sub_ver); +int mgmt_remote_features(struct hci_dev *hdev, bdaddr_t *bdaddr, u8 features[8]); +/* monitoring of the RSSI of the link between two Bluetooth devices */ +int mgmt_read_rssi_complete(struct hci_dev *hdev, bdaddr_t *bdaddr, s8 rssi, u8 status); +int mgmt_read_rssi_failed(struct hci_dev *hdev); +int mgmt_le_test_end_complete(struct hci_dev *hdev, u8 status, __u16 num_pkts); + +/* HCI info for socket */ +#define hci_pi(sk) ((struct hci_pinfo *) sk) + +/* HCI socket flags */ +#define HCI_PI_MGMT_INIT 0 + +struct hci_pinfo { + struct bt_sock bt; + struct hci_dev *hdev; + struct hci_filter filter; + __u32 cmsg_mask; + unsigned short channel; + unsigned long flags; +}; + +/* HCI security filter */ +#define HCI_SFLT_MAX_OGF 5 + +struct hci_sec_filter { + __u32 type_mask; + __u32 event_mask[2]; + __u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4]; +}; + +/* ----- HCI requests ----- */ +#define HCI_REQ_DONE 0 +#define HCI_REQ_PEND 1 +#define HCI_REQ_CANCELED 2 + +#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, __u16 cmd, 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, __u8 rand[8], + __u8 ltk[16]); +void hci_le_ltk_reply(struct hci_conn *conn, u8 ltk[16]); +void hci_le_ltk_neg_reply(struct hci_conn *conn); +int hci_do_inquiry(struct hci_dev *hdev, u8 length); +int hci_cancel_inquiry(struct hci_dev *hdev); +int hci_le_scan(struct hci_dev *hdev, u8 type, u16 interval, u16 window, + int timeout); +/* for stop le scan */ +int hci_cancel_le_scan(struct hci_dev *hdev); + +#endif /* __HCI_CORE_H */ |