[mirror_ubuntu-bionic-kernel.git] / include / net / bluetooth / hci_core.h

/* 
   BlueZ - Bluetooth protocol stack for Linux
   Copyright (C) 2000-2001 Qualcomm Incorporated

   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 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 inquiry_entry 	*next;
	__u32			timestamp;
	struct inquiry_data	data;
};

struct inquiry_cache {
	spinlock_t 		lock;
	__u32			timestamp;
	struct inquiry_entry 	*list;
};

struct hci_conn_hash {
	struct list_head list;
	spinlock_t       lock;
	unsigned int     acl_num;
	unsigned int     sco_num;
};

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[248];
	__u8		dev_class[3];
	__u8		features[8];
	__u8		commands[64];
	__u8		ssp_mode;
	__u8		hci_ver;
	__u16		hci_rev;
	__u16		manufacturer;
	__u16		voice_setting;

	__u16		pkt_type;
	__u16		esco_type;
	__u16		link_policy;
	__u16		link_mode;

	__u32		idle_timeout;
	__u16		sniff_min_interval;
	__u16		sniff_max_interval;

	unsigned long	quirks;

	atomic_t	cmd_cnt;
	unsigned int	acl_cnt;
	unsigned int	sco_cnt;

	unsigned int	acl_mtu;
	unsigned int	sco_mtu;
	unsigned int	acl_pkts;
	unsigned int	sco_pkts;

	unsigned long	cmd_last_tx;
	unsigned long	acl_last_tx;
	unsigned long	sco_last_tx;

	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[3];

	struct mutex		req_lock;
	wait_queue_head_t	req_wait_q;
	__u32			req_status;
	__u32			req_result;

	struct inquiry_cache	inq_cache;
	struct hci_conn_hash	conn_hash;

	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;

	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);
};

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;

	struct sk_buff_head data_q;

	struct timer_list disc_timer;
	struct timer_list idle_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		*priv;

	struct hci_conn	*link;
};

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

#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)

static inline void inquiry_cache_init(struct hci_dev *hdev)
{
	struct inquiry_cache *c = &hdev->inq_cache;
	spin_lock_init(&c->lock);
	c->list = NULL;
}

static inline int inquiry_cache_empty(struct hci_dev *hdev)
{
	struct inquiry_cache *c = &hdev->inq_cache;
	return (c->list == NULL);
}

static inline long inquiry_cache_age(struct hci_dev *hdev)
{
	struct inquiry_cache *c = &hdev->inq_cache;
	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);
void hci_inquiry_cache_update(struct hci_dev *hdev, struct inquiry_data *data);

/* ----- HCI Connections ----- */
enum {
	HCI_CONN_AUTH_PEND,
	HCI_CONN_ENCRYPT_PEND,
	HCI_CONN_RSWITCH_PEND,
	HCI_CONN_MODE_CHANGE_PEND,
};

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;
}

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)
		h->acl_num++;
	else
		h->sco_num++;
}

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)
		h->acl_num--;
	else
		h->sco_num--;
}

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);

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);
int hci_conn_check_link_mode(struct hci_conn *conn);
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_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) {
			del_timer(&conn->idle_timer);
			if (conn->state == BT_CONNECTED) {
				timeo = msecs_to_jiffies(conn->disc_timeout);
				if (!conn->out)
					timeo *= 2;
			} 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);

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_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)

/* ----- 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);
}

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);
}

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))
		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);
}

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);
}

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->pend))
		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;

	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);
}

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);
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);

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);

/* HCI info for socket */
#define hci_pi(sk) ((struct hci_pinfo *) sk)

struct hci_pinfo {
	struct bt_sock    bt;
	struct hci_dev    *hdev;
	struct hci_filter filter;
	__u32             cmsg_mask;
};

/* 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, int result);

#endif /* __HCI_CORE_H */
Commit	Line	Data
1da177e4 LT	1	/*
	2	BlueZ - Bluetooth protocol stack for Linux
	3	Copyright (C) 2000-2001 Qualcomm Incorporated
	4
	5	Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License version 2 as
	9	published by the Free Software Foundation;
	10
	11	THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
	12	OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
	13	FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
	14	IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
	15	CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
	16	WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	17	ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	18	OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	19
	20	ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
	21	COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
	22	SOFTWARE IS DISCLAIMED.
	23	*/
	24
	25	#ifndef __HCI_CORE_H
	26	#define __HCI_CORE_H
	27
1da177e4 LT	28	#include <net/bluetooth/hci.h>
	29
	30	/* HCI upper protocols */
	31	#define HCI_PROTO_L2CAP 0
	32	#define HCI_PROTO_SCO 1
	33
1da177e4	34	/* HCI Core structures */
1da177e4 LT	35	struct inquiry_data {
	36	bdaddr_t bdaddr;
	37	__u8 pscan_rep_mode;
	38	__u8 pscan_period_mode;
	39	__u8 pscan_mode;
	40	__u8 dev_class[3];
1ebb9252	41	__le16 clock_offset;
1da177e4	42	__s8 rssi;
41a96212	43	__u8 ssp_mode;
1da177e4 LT	44	};
	45
	46	struct inquiry_entry {
	47	struct inquiry_entry *next;
	48	__u32 timestamp;
	49	struct inquiry_data data;
	50	};
	51
	52	struct inquiry_cache {
	53	spinlock_t lock;
	54	__u32 timestamp;
	55	struct inquiry_entry *list;
	56	};
	57
	58	struct hci_conn_hash {
	59	struct list_head list;
	60	spinlock_t lock;
	61	unsigned int acl_num;
	62	unsigned int sco_num;
	63	};
	64
	65	struct hci_dev {
	66	struct list_head list;
	67	spinlock_t lock;
	68	atomic_t refcnt;
	69
	70	char name[8];
	71	unsigned long flags;
	72	__u16 id;
c13854ce	73	__u8 bus;
943da25d	74	__u8 dev_type;
1da177e4	75	bdaddr_t bdaddr;
a9de9248 MH	76	__u8 dev_name[248];
a9de9248 MH	77	__u8 dev_class[3];
1da177e4	78	__u8 features[8];
a9de9248	79	__u8 commands[64];
333140b5	80	__u8 ssp_mode;
1143e5a6 MH	81	__u8 hci_ver;
	82	__u16 hci_rev;
	83	__u16 manufacturer;
1da177e4 LT	84	__u16 voice_setting;
	85
	86	__u16 pkt_type;
5b7f9909	87	__u16 esco_type;
1da177e4 LT	88	__u16 link_policy;
	89	__u16 link_mode;
	90
04837f64 MH	91	__u32 idle_timeout;
	92	__u16 sniff_min_interval;
	93	__u16 sniff_max_interval;
	94
1da177e4 LT	95	unsigned long quirks;
	96
	97	atomic_t cmd_cnt;
	98	unsigned int acl_cnt;
	99	unsigned int sco_cnt;
	100
	101	unsigned int acl_mtu;
	102	unsigned int sco_mtu;
	103	unsigned int acl_pkts;
	104	unsigned int sco_pkts;
	105
	106	unsigned long cmd_last_tx;
	107	unsigned long acl_last_tx;
	108	unsigned long sco_last_tx;
	109
	110	struct tasklet_struct cmd_task;
	111	struct tasklet_struct rx_task;
	112	struct tasklet_struct tx_task;
	113
	114	struct sk_buff_head rx_q;
	115	struct sk_buff_head raw_q;
	116	struct sk_buff_head cmd_q;
	117
	118	struct sk_buff *sent_cmd;
ef222013	119	struct sk_buff *reassembly[3];
1da177e4	120
a6a67efd	121	struct mutex req_lock;
1da177e4 LT	122	wait_queue_head_t req_wait_q;
	123	__u32 req_status;
	124	__u32 req_result;
	125
	126	struct inquiry_cache inq_cache;
	127	struct hci_conn_hash conn_hash;
	128
	129	struct hci_dev_stats stat;
	130
	131	struct sk_buff_head driver_init;
	132
	133	void *driver_data;
	134	void *core_data;
	135
	136	atomic_t promisc;
	137
ca325f69 MH	138	struct dentry *debugfs;
ca325f69 MH	139
a91f2e39 MH	140	struct device *parent;
a91f2e39 MH	141	struct device dev;
1da177e4	142
611b30f7 MH	143	struct rfkill *rfkill;
611b30f7 MH	144
1da177e4 LT	145	struct module *owner;
	146
	147	int (open)(struct hci_dev hdev);
	148	int (close)(struct hci_dev hdev);
	149	int (flush)(struct hci_dev hdev);
	150	int (send)(struct sk_buff skb);
	151	void (destruct)(struct hci_dev hdev);
	152	void (notify)(struct hci_dev hdev, unsigned int evt);
	153	int (ioctl)(struct hci_dev hdev, unsigned int cmd, unsigned long arg);
	154	};
	155
	156	struct hci_conn {
	157	struct list_head list;
	158
	159	atomic_t refcnt;
	160	spinlock_t lock;
	161
	162	bdaddr_t dst;
	163	__u16 handle;
	164	__u16 state;
04837f64	165	__u8 mode;
1da177e4 LT	166	__u8 type;
1da177e4 LT	167	__u8 out;
4c67bc74	168	__u8 attempt;
1da177e4	169	__u8 dev_class[3];
04837f64	170	__u8 features[8];
41a96212	171	__u8 ssp_mode;
04837f64	172	__u16 interval;
a8746417	173	__u16 pkt_type;
04837f64	174	__u16 link_policy;
1da177e4	175	__u32 link_mode;
40be492f	176	__u8 auth_type;
8c1b2355	177	__u8 sec_level;
04837f64	178	__u8 power_save;
052b30b0	179	__u16 disc_timeout;
1da177e4	180	unsigned long pend;
04837f64	181
1da177e4	182	unsigned int sent;
04837f64	183
1da177e4 LT	184	struct sk_buff_head data_q;
1da177e4 LT	185
04837f64 MH	186	struct timer_list disc_timer;
	187	struct timer_list idle_timer;
	188
f3784d83 RQ	189	struct work_struct work_add;
f3784d83 RQ	190	struct work_struct work_del;
b219e3ac MH	191
b219e3ac MH	192	struct device dev;
9eba32b8	193	atomic_t devref;
b219e3ac	194
1da177e4 LT	195	struct hci_dev *hdev;
	196	void *l2cap_data;
	197	void *sco_data;
	198	void *priv;
	199
	200	struct hci_conn *link;
	201	};
	202
	203	extern struct hci_proto *hci_proto[];
	204	extern struct list_head hci_dev_list;
	205	extern struct list_head hci_cb_list;
	206	extern rwlock_t hci_dev_list_lock;
	207	extern rwlock_t hci_cb_list_lock;
	208
	209	/* ----- Inquiry cache ----- */
	210	#define INQUIRY_CACHE_AGE_MAX (HZ*30) // 30 seconds
	211	#define INQUIRY_ENTRY_AGE_MAX (HZ*60) // 60 seconds
	212
	213	#define inquiry_cache_lock(c) spin_lock(&c->lock)
	214	#define inquiry_cache_unlock(c) spin_unlock(&c->lock)
	215	#define inquiry_cache_lock_bh(c) spin_lock_bh(&c->lock)
	216	#define inquiry_cache_unlock_bh(c) spin_unlock_bh(&c->lock)
	217
	218	static inline void inquiry_cache_init(struct hci_dev *hdev)
	219	{
	220	struct inquiry_cache *c = &hdev->inq_cache;
	221	spin_lock_init(&c->lock);
	222	c->list = NULL;
	223	}
	224
	225	static inline int inquiry_cache_empty(struct hci_dev *hdev)
	226	{
	227	struct inquiry_cache *c = &hdev->inq_cache;
	228	return (c->list == NULL);
	229	}
	230
	231	static inline long inquiry_cache_age(struct hci_dev *hdev)
	232	{
	233	struct inquiry_cache *c = &hdev->inq_cache;
	234	return jiffies - c->timestamp;
	235	}
	236
	237	static inline long inquiry_entry_age(struct inquiry_entry *e)
	238	{
	239	return jiffies - e->timestamp;
	240	}
	241
	242	struct inquiry_entry hci_inquiry_cache_lookup(struct hci_dev hdev, bdaddr_t *bdaddr);
	243	void hci_inquiry_cache_update(struct hci_dev hdev, struct inquiry_data data);
	244
	245	/* ----- HCI Connections ----- */
	246	enum {
	247	HCI_CONN_AUTH_PEND,
	248	HCI_CONN_ENCRYPT_PEND,
04837f64 MH	249	HCI_CONN_RSWITCH_PEND,
04837f64 MH	250	HCI_CONN_MODE_CHANGE_PEND,
1da177e4 LT	251	};
	252
	253	static inline void hci_conn_hash_init(struct hci_dev *hdev)
	254	{
	255	struct hci_conn_hash *h = &hdev->conn_hash;
	256	INIT_LIST_HEAD(&h->list);
	257	spin_lock_init(&h->lock);
	258	h->acl_num = 0;
	259	h->sco_num = 0;
	260	}
	261
	262	static inline void hci_conn_hash_add(struct hci_dev hdev, struct hci_conn c)
	263	{
	264	struct hci_conn_hash *h = &hdev->conn_hash;
	265	list_add(&c->list, &h->list);
	266	if (c->type == ACL_LINK)
	267	h->acl_num++;
	268	else
	269	h->sco_num++;
	270	}
	271
	272	static inline void hci_conn_hash_del(struct hci_dev hdev, struct hci_conn c)
	273	{
	274	struct hci_conn_hash *h = &hdev->conn_hash;
	275	list_del(&c->list);
	276	if (c->type == ACL_LINK)
	277	h->acl_num--;
	278	else
	279	h->sco_num--;
	280	}
	281
	282	static inline struct hci_conn hci_conn_hash_lookup_handle(struct hci_dev hdev,
	283	__u16 handle)
	284	{
	285	struct hci_conn_hash *h = &hdev->conn_hash;
	286	struct list_head *p;
	287	struct hci_conn *c;
	288
	289	list_for_each(p, &h->list) {
	290	c = list_entry(p, struct hci_conn, list);
	291	if (c->handle == handle)
	292	return c;
	293	}
	294	return NULL;
	295	}
	296
	297	static inline struct hci_conn hci_conn_hash_lookup_ba(struct hci_dev hdev,
	298	__u8 type, bdaddr_t *ba)
	299	{
	300	struct hci_conn_hash *h = &hdev->conn_hash;
	301	struct list_head *p;
	302	struct hci_conn *c;
	303
	304	list_for_each(p, &h->list) {
	305	c = list_entry(p, struct hci_conn, list);
	306	if (c->type == type && !bacmp(&c->dst, ba))
	307	return c;
	308	}
	309	return NULL;
	310	}
	311
4c67bc74 MH	312	static inline struct hci_conn hci_conn_hash_lookup_state(struct hci_dev hdev,
	313	__u8 type, __u16 state)
	314	{
	315	struct hci_conn_hash *h = &hdev->conn_hash;
	316	struct list_head *p;
	317	struct hci_conn *c;
	318
	319	list_for_each(p, &h->list) {
	320	c = list_entry(p, struct hci_conn, list);
	321	if (c->type == type && c->state == state)
	322	return c;
	323	}
	324	return NULL;
	325	}
	326
	327	void hci_acl_connect(struct hci_conn *conn);
1da177e4 LT	328	void hci_acl_disconn(struct hci_conn *conn, __u8 reason);
1da177e4 LT	329	void hci_add_sco(struct hci_conn *conn, __u16 handle);
b6a0dc82	330	void hci_setup_sync(struct hci_conn *conn, __u16 handle);
1da177e4 LT	331
1da177e4 LT	332	struct hci_conn hci_conn_add(struct hci_dev hdev, int type, bdaddr_t *dst);
a9de9248 MH	333	int hci_conn_del(struct hci_conn *conn);
	334	void hci_conn_hash_flush(struct hci_dev *hdev);
	335	void hci_conn_check_pending(struct hci_dev *hdev);
1da177e4	336
8c1b2355	337	struct hci_conn hci_connect(struct hci_dev hdev, int type, bdaddr_t *dst, __u8 sec_level, __u8 auth_type);
e7c29cb1	338	int hci_conn_check_link_mode(struct hci_conn *conn);
0684e5f9	339	int hci_conn_security(struct hci_conn *conn, __u8 sec_level, __u8 auth_type);
1da177e4	340	int hci_conn_change_link_key(struct hci_conn *conn);
8c1b2355	341	int hci_conn_switch_role(struct hci_conn *conn, __u8 role);
1da177e4	342
04837f64 MH	343	void hci_conn_enter_active_mode(struct hci_conn *conn);
04837f64 MH	344	void hci_conn_enter_sniff_mode(struct hci_conn *conn);
1da177e4	345
9eba32b8 MH	346	void hci_conn_hold_device(struct hci_conn *conn);
	347	void hci_conn_put_device(struct hci_conn *conn);
	348
1da177e4 LT	349	static inline void hci_conn_hold(struct hci_conn *conn)
	350	{
	351	atomic_inc(&conn->refcnt);
04837f64	352	del_timer(&conn->disc_timer);
1da177e4 LT	353	}
	354
	355	static inline void hci_conn_put(struct hci_conn *conn)
	356	{
	357	if (atomic_dec_and_test(&conn->refcnt)) {
04837f64	358	unsigned long timeo;
1da177e4	359	if (conn->type == ACL_LINK) {
04837f64	360	del_timer(&conn->idle_timer);
6ac59344	361	if (conn->state == BT_CONNECTED) {
052b30b0	362	timeo = msecs_to_jiffies(conn->disc_timeout);
6ac59344	363	if (!conn->out)
052b30b0	364	timeo *= 2;
6ac59344 MH	365	} else
6ac59344 MH	366	timeo = msecs_to_jiffies(10);
1da177e4	367	} else
04837f64 MH	368	timeo = msecs_to_jiffies(10);
04837f64 MH	369	mod_timer(&conn->disc_timer, jiffies + timeo);
1da177e4 LT	370	}
	371	}
	372
1da177e4 LT	373	/* ----- HCI Devices ----- */
	374	static inline void __hci_dev_put(struct hci_dev *d)
	375	{
	376	if (atomic_dec_and_test(&d->refcnt))
	377	d->destruct(d);
	378	}
	379
	380	static inline void hci_dev_put(struct hci_dev *d)
	381	{
	382	__hci_dev_put(d);
	383	module_put(d->owner);
	384	}
	385
	386	static inline struct hci_dev __hci_dev_hold(struct hci_dev d)
	387	{
	388	atomic_inc(&d->refcnt);
	389	return d;
	390	}
	391
	392	static inline struct hci_dev hci_dev_hold(struct hci_dev d)
	393	{
	394	if (try_module_get(d->owner))
	395	return __hci_dev_hold(d);
	396	return NULL;
	397	}
	398
	399	#define hci_dev_lock(d) spin_lock(&d->lock)
	400	#define hci_dev_unlock(d) spin_unlock(&d->lock)
	401	#define hci_dev_lock_bh(d) spin_lock_bh(&d->lock)
	402	#define hci_dev_unlock_bh(d) spin_unlock_bh(&d->lock)
	403
	404	struct hci_dev *hci_dev_get(int index);
	405	struct hci_dev hci_get_route(bdaddr_t src, bdaddr_t *dst);
	406
	407	struct hci_dev *hci_alloc_dev(void);
	408	void hci_free_dev(struct hci_dev *hdev);
	409	int hci_register_dev(struct hci_dev *hdev);
	410	int hci_unregister_dev(struct hci_dev *hdev);
	411	int hci_suspend_dev(struct hci_dev *hdev);
	412	int hci_resume_dev(struct hci_dev *hdev);
	413	int hci_dev_open(__u16 dev);
	414	int hci_dev_close(__u16 dev);
	415	int hci_dev_reset(__u16 dev);
	416	int hci_dev_reset_stat(__u16 dev);
	417	int hci_dev_cmd(unsigned int cmd, void __user *arg);
	418	int hci_get_dev_list(void __user *arg);
	419	int hci_get_dev_info(void __user *arg);
	420	int hci_get_conn_list(void __user *arg);
	421	int hci_get_conn_info(struct hci_dev hdev, void __user arg);
40be492f	422	int hci_get_auth_info(struct hci_dev hdev, void __user arg);
1da177e4 LT	423	int hci_inquiry(void __user *arg);
	424
	425	void hci_event_packet(struct hci_dev hdev, struct sk_buff skb);
	426
76bca880	427	int hci_recv_frame(struct sk_buff *skb);
ef222013 MH	428	int hci_recv_fragment(struct hci_dev hdev, int type, void data, int count);
ef222013 MH	429
1da177e4 LT	430	int hci_register_sysfs(struct hci_dev *hdev);
1da177e4 LT	431	void hci_unregister_sysfs(struct hci_dev *hdev);
a67e899c	432	void hci_conn_init_sysfs(struct hci_conn *conn);
b219e3ac MH	433	void hci_conn_add_sysfs(struct hci_conn *conn);
b219e3ac MH	434	void hci_conn_del_sysfs(struct hci_conn *conn);
1da177e4	435
a91f2e39	436	#define SET_HCIDEV_DEV(hdev, pdev) ((hdev)->parent = (pdev))
1da177e4 LT	437
1da177e4 LT	438	/* ----- LMP capabilities ----- */
04837f64 MH	439	#define lmp_rswitch_capable(dev) ((dev)->features[0] & LMP_RSWITCH)
	440	#define lmp_encrypt_capable(dev) ((dev)->features[0] & LMP_ENCRYPT)
	441	#define lmp_sniff_capable(dev) ((dev)->features[0] & LMP_SNIFF)
	442	#define lmp_sniffsubr_capable(dev) ((dev)->features[5] & LMP_SNIFF_SUBR)
5b7f9909	443	#define lmp_esco_capable(dev) ((dev)->features[3] & LMP_ESCO)
769be974	444	#define lmp_ssp_capable(dev) ((dev)->features[6] & LMP_SIMPLE_PAIR)
1da177e4 LT	445
	446	/* ----- HCI protocols ----- */
	447	struct hci_proto {
8c1b2355	448	char *name;
1da177e4 LT	449	unsigned int id;
	450	unsigned long flags;
	451
	452	void *priv;
	453
8c1b2355	454	int (connect_ind) (struct hci_dev hdev, bdaddr_t *bdaddr, __u8 type);
1da177e4	455	int (connect_cfm) (struct hci_conn conn, __u8 status);
2950f21a MH	456	int (disconn_ind) (struct hci_conn conn);
2950f21a MH	457	int (disconn_cfm) (struct hci_conn conn, __u8 reason);
1da177e4 LT	458	int (recv_acldata) (struct hci_conn conn, struct sk_buff *skb, __u16 flags);
1da177e4 LT	459	int (recv_scodata) (struct hci_conn conn, struct sk_buff *skb);
8c1b2355	460	int (security_cfm) (struct hci_conn conn, __u8 status, __u8 encrypt);
1da177e4 LT	461	};
	462
	463	static inline int hci_proto_connect_ind(struct hci_dev hdev, bdaddr_t bdaddr, __u8 type)
	464	{
	465	register struct hci_proto *hp;
	466	int mask = 0;
8c1b2355	467
1da177e4 LT	468	hp = hci_proto[HCI_PROTO_L2CAP];
	469	if (hp && hp->connect_ind)
	470	mask \|= hp->connect_ind(hdev, bdaddr, type);
	471
	472	hp = hci_proto[HCI_PROTO_SCO];
	473	if (hp && hp->connect_ind)
	474	mask \|= hp->connect_ind(hdev, bdaddr, type);
	475
	476	return mask;
	477	}
	478
	479	static inline void hci_proto_connect_cfm(struct hci_conn *conn, __u8 status)
	480	{
	481	register struct hci_proto *hp;
	482
	483	hp = hci_proto[HCI_PROTO_L2CAP];
	484	if (hp && hp->connect_cfm)
	485	hp->connect_cfm(conn, status);
	486
	487	hp = hci_proto[HCI_PROTO_SCO];
	488	if (hp && hp->connect_cfm)
	489	hp->connect_cfm(conn, status);
	490	}
	491
2950f21a	492	static inline int hci_proto_disconn_ind(struct hci_conn *conn)
1da177e4 LT	493	{
1da177e4 LT	494	register struct hci_proto *hp;
2950f21a	495	int reason = 0x13;
1da177e4 LT	496
	497	hp = hci_proto[HCI_PROTO_L2CAP];
	498	if (hp && hp->disconn_ind)
2950f21a	499	reason = hp->disconn_ind(conn);
1da177e4 LT	500
	501	hp = hci_proto[HCI_PROTO_SCO];
	502	if (hp && hp->disconn_ind)
2950f21a MH	503	reason = hp->disconn_ind(conn);
	504
	505	return reason;
	506	}
	507
	508	static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
	509	{
	510	register struct hci_proto *hp;
	511
	512	hp = hci_proto[HCI_PROTO_L2CAP];
	513	if (hp && hp->disconn_cfm)
	514	hp->disconn_cfm(conn, reason);
	515
	516	hp = hci_proto[HCI_PROTO_SCO];
	517	if (hp && hp->disconn_cfm)
	518	hp->disconn_cfm(conn, reason);
1da177e4 LT	519	}
	520
	521	static inline void hci_proto_auth_cfm(struct hci_conn *conn, __u8 status)
	522	{
	523	register struct hci_proto *hp;
8c1b2355 MH	524	__u8 encrypt;
	525
	526	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
	527	return;
	528
	529	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
1da177e4 LT	530
1da177e4 LT	531	hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355 MH	532	if (hp && hp->security_cfm)
8c1b2355 MH	533	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	534
1da177e4 LT	535	hp = hci_proto[HCI_PROTO_SCO];
8c1b2355 MH	536	if (hp && hp->security_cfm)
8c1b2355 MH	537	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	538	}
1da177e4 LT	539
9719f8af	540	static inline void hci_proto_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
1da177e4 LT	541	{
	542	register struct hci_proto *hp;
	543
	544	hp = hci_proto[HCI_PROTO_L2CAP];
8c1b2355 MH	545	if (hp && hp->security_cfm)
8c1b2355 MH	546	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	547
1da177e4 LT	548	hp = hci_proto[HCI_PROTO_SCO];
8c1b2355 MH	549	if (hp && hp->security_cfm)
8c1b2355 MH	550	hp->security_cfm(conn, status, encrypt);
1da177e4 LT	551	}
	552
	553	int hci_register_proto(struct hci_proto *hproto);
	554	int hci_unregister_proto(struct hci_proto *hproto);
	555
	556	/* ----- HCI callbacks ----- */
	557	struct hci_cb {
	558	struct list_head list;
	559
	560	char *name;
	561
8c1b2355	562	void (security_cfm) (struct hci_conn conn, __u8 status, __u8 encrypt);
1da177e4 LT	563	void (key_change_cfm) (struct hci_conn conn, __u8 status);
	564	void (role_switch_cfm) (struct hci_conn conn, __u8 status, __u8 role);
	565	};
	566
	567	static inline void hci_auth_cfm(struct hci_conn *conn, __u8 status)
	568	{
	569	struct list_head *p;
8c1b2355	570	__u8 encrypt;
1da177e4 LT	571
	572	hci_proto_auth_cfm(conn, status);
	573
8c1b2355 MH	574	if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend))
	575	return;
	576
	577	encrypt = (conn->link_mode & HCI_LM_ENCRYPT) ? 0x01 : 0x00;
	578
1da177e4 LT	579	read_lock_bh(&hci_cb_list_lock);
	580	list_for_each(p, &hci_cb_list) {
	581	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355 MH	582	if (cb->security_cfm)
8c1b2355 MH	583	cb->security_cfm(conn, status, encrypt);
1da177e4 LT	584	}
	585	read_unlock_bh(&hci_cb_list_lock);
	586	}
	587
	588	static inline void hci_encrypt_cfm(struct hci_conn *conn, __u8 status, __u8 encrypt)
	589	{
	590	struct list_head *p;
	591
435fef20 MH	592	if (conn->sec_level == BT_SECURITY_SDP)
	593	conn->sec_level = BT_SECURITY_LOW;
	594
9719f8af	595	hci_proto_encrypt_cfm(conn, status, encrypt);
1da177e4 LT	596
	597	read_lock_bh(&hci_cb_list_lock);
	598	list_for_each(p, &hci_cb_list) {
	599	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
8c1b2355 MH	600	if (cb->security_cfm)
8c1b2355 MH	601	cb->security_cfm(conn, status, encrypt);
1da177e4 LT	602	}
	603	read_unlock_bh(&hci_cb_list_lock);
	604	}
	605
	606	static inline void hci_key_change_cfm(struct hci_conn *conn, __u8 status)
	607	{
	608	struct list_head *p;
	609
	610	read_lock_bh(&hci_cb_list_lock);
	611	list_for_each(p, &hci_cb_list) {
	612	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
	613	if (cb->key_change_cfm)
	614	cb->key_change_cfm(conn, status);
	615	}
	616	read_unlock_bh(&hci_cb_list_lock);
	617	}
	618
	619	static inline void hci_role_switch_cfm(struct hci_conn *conn, __u8 status, __u8 role)
	620	{
	621	struct list_head *p;
	622
	623	read_lock_bh(&hci_cb_list_lock);
	624	list_for_each(p, &hci_cb_list) {
	625	struct hci_cb *cb = list_entry(p, struct hci_cb, list);
	626	if (cb->role_switch_cfm)
	627	cb->role_switch_cfm(conn, status, role);
	628	}
	629	read_unlock_bh(&hci_cb_list_lock);
	630	}
	631
	632	int hci_register_cb(struct hci_cb *hcb);
	633	int hci_unregister_cb(struct hci_cb *hcb);
	634
	635	int hci_register_notifier(struct notifier_block *nb);
	636	int hci_unregister_notifier(struct notifier_block *nb);
	637
a9de9248	638	int hci_send_cmd(struct hci_dev hdev, __u16 opcode, __u32 plen, void param);
1da177e4 LT	639	int hci_send_acl(struct hci_conn conn, struct sk_buff skb, __u16 flags);
	640	int hci_send_sco(struct hci_conn conn, struct sk_buff skb);
	641
a9de9248	642	void hci_sent_cmd_data(struct hci_dev hdev, __u16 opcode);
1da177e4 LT	643
	644	void hci_si_event(struct hci_dev hdev, int type, int dlen, void data);
	645
	646	/* ----- HCI Sockets ----- */
	647	void hci_send_to_sock(struct hci_dev hdev, struct sk_buff skb);
	648
	649	/* HCI info for socket */
	650	#define hci_pi(sk) ((struct hci_pinfo *) sk)
	651
	652	struct hci_pinfo {
	653	struct bt_sock bt;
	654	struct hci_dev *hdev;
	655	struct hci_filter filter;
	656	__u32 cmsg_mask;
	657	};
	658
	659	/* HCI security filter */
	660	#define HCI_SFLT_MAX_OGF 5
	661
	662	struct hci_sec_filter {
	663	__u32 type_mask;
	664	__u32 event_mask[2];
	665	__u32 ocf_mask[HCI_SFLT_MAX_OGF + 1][4];
	666	};
	667
	668	/* ----- HCI requests ----- */
	669	#define HCI_REQ_DONE 0
	670	#define HCI_REQ_PEND 1
	671	#define HCI_REQ_CANCELED 2
	672
a6a67efd TG	673	#define hci_req_lock(d) mutex_lock(&d->req_lock)
a6a67efd TG	674	#define hci_req_unlock(d) mutex_unlock(&d->req_lock)
1da177e4 LT	675
	676	void hci_req_complete(struct hci_dev *hdev, int result);
	677
	678	#endif /* __HCI_CORE_H */