[deliverable/linux.git] / include / net / bluetooth / bluetooth.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 __BLUETOOTH_H
#define __BLUETOOTH_H

#include <linux/poll.h>
#include <net/sock.h>
#include <linux/seq_file.h>

#define BT_SUBSYS_VERSION	2
#define BT_SUBSYS_REVISION	22

#ifndef AF_BLUETOOTH
#define AF_BLUETOOTH	31
#define PF_BLUETOOTH	AF_BLUETOOTH
#endif

/* Bluetooth versions */
#define BLUETOOTH_VER_1_1	1
#define BLUETOOTH_VER_1_2	2
#define BLUETOOTH_VER_2_0	3

/* Reserv for core and drivers use */
#define BT_SKB_RESERVE	8

#define BTPROTO_L2CAP	0
#define BTPROTO_HCI	1
#define BTPROTO_SCO	2
#define BTPROTO_RFCOMM	3
#define BTPROTO_BNEP	4
#define BTPROTO_CMTP	5
#define BTPROTO_HIDP	6
#define BTPROTO_AVDTP	7

#define SOL_HCI		0
#define SOL_L2CAP	6
#define SOL_SCO		17
#define SOL_RFCOMM	18

#define BT_SECURITY	4
struct bt_security {
	__u8 level;
	__u8 key_size;
};
#define BT_SECURITY_SDP		0
#define BT_SECURITY_LOW		1
#define BT_SECURITY_MEDIUM	2
#define BT_SECURITY_HIGH	3
#define BT_SECURITY_FIPS	4

#define BT_DEFER_SETUP	7

#define BT_FLUSHABLE	8

#define BT_FLUSHABLE_OFF	0
#define BT_FLUSHABLE_ON		1

#define BT_POWER	9
struct bt_power {
	__u8 force_active;
};
#define BT_POWER_FORCE_ACTIVE_OFF 0
#define BT_POWER_FORCE_ACTIVE_ON  1

#define BT_CHANNEL_POLICY	10

/* BR/EDR only (default policy)
 *   AMP controllers cannot be used.
 *   Channel move requests from the remote device are denied.
 *   If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
 */
#define BT_CHANNEL_POLICY_BREDR_ONLY		0

/* BR/EDR Preferred
 *   Allow use of AMP controllers.
 *   If the L2CAP channel is currently on AMP, move it to BR/EDR.
 *   Channel move requests from the remote device are allowed.
 */
#define BT_CHANNEL_POLICY_BREDR_PREFERRED	1

/* AMP Preferred
 *   Allow use of AMP controllers
 *   If the L2CAP channel is currently on BR/EDR and AMP controller
 *     resources are available, initiate a channel move to AMP.
 *   Channel move requests from the remote device are allowed.
 *   If the L2CAP socket has not been connected yet, try to create
 *     and configure the channel directly on an AMP controller rather
 *     than BR/EDR.
 */
#define BT_CHANNEL_POLICY_AMP_PREFERRED		2

#define BT_VOICE		11
struct bt_voice {
	__u16 setting;
};

#define BT_VOICE_TRANSPARENT			0x0003
#define BT_VOICE_CVSD_16BIT			0x0060

#define BT_SNDMTU		12
#define BT_RCVMTU		13

__printf(1, 2)
void bt_info(const char *fmt, ...);
__printf(1, 2)
void bt_warn(const char *fmt, ...);
__printf(1, 2)
void bt_err(const char *fmt, ...);
__printf(1, 2)
void bt_err_ratelimited(const char *fmt, ...);

#define BT_INFO(fmt, ...)	bt_info(fmt "\n", ##__VA_ARGS__)
#define BT_WARN(fmt, ...)	bt_warn(fmt "\n", ##__VA_ARGS__)
#define BT_ERR(fmt, ...)	bt_err(fmt "\n", ##__VA_ARGS__)
#define BT_DBG(fmt, ...)	pr_debug(fmt "\n", ##__VA_ARGS__)

#define BT_ERR_RATELIMITED(fmt, ...) bt_err_ratelimited(fmt "\n", ##__VA_ARGS__)

#define bt_dev_info(hdev, fmt, ...)				\
	BT_INFO("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
#define bt_dev_warn(hdev, fmt, ...)				\
	BT_WARN("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
#define bt_dev_err(hdev, fmt, ...)				\
	BT_ERR("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
#define bt_dev_dbg(hdev, fmt, ...)				\
	BT_DBG("%s: " fmt, (hdev)->name, ##__VA_ARGS__)

/* Connection and socket states */
enum {
	BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
	BT_OPEN,
	BT_BOUND,
	BT_LISTEN,
	BT_CONNECT,
	BT_CONNECT2,
	BT_CONFIG,
	BT_DISCONN,
	BT_CLOSED
};

/* If unused will be removed by compiler */
static inline const char *state_to_string(int state)
{
	switch (state) {
	case BT_CONNECTED:
		return "BT_CONNECTED";
	case BT_OPEN:
		return "BT_OPEN";
	case BT_BOUND:
		return "BT_BOUND";
	case BT_LISTEN:
		return "BT_LISTEN";
	case BT_CONNECT:
		return "BT_CONNECT";
	case BT_CONNECT2:
		return "BT_CONNECT2";
	case BT_CONFIG:
		return "BT_CONFIG";
	case BT_DISCONN:
		return "BT_DISCONN";
	case BT_CLOSED:
		return "BT_CLOSED";
	}

	return "invalid state";
}

/* BD Address */
typedef struct {
	__u8 b[6];
} __packed bdaddr_t;

/* BD Address type */
#define BDADDR_BREDR		0x00
#define BDADDR_LE_PUBLIC	0x01
#define BDADDR_LE_RANDOM	0x02

static inline bool bdaddr_type_is_valid(__u8 type)
{
	switch (type) {
	case BDADDR_BREDR:
	case BDADDR_LE_PUBLIC:
	case BDADDR_LE_RANDOM:
		return true;
	}

	return false;
}

static inline bool bdaddr_type_is_le(__u8 type)
{
	switch (type) {
	case BDADDR_LE_PUBLIC:
	case BDADDR_LE_RANDOM:
		return true;
	}

	return false;
}

#define BDADDR_ANY  (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
#define BDADDR_NONE (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})

/* Copy, swap, convert BD Address */
static inline int bacmp(const bdaddr_t *ba1, const bdaddr_t *ba2)
{
	return memcmp(ba1, ba2, sizeof(bdaddr_t));
}
static inline void bacpy(bdaddr_t *dst, const bdaddr_t *src)
{
	memcpy(dst, src, sizeof(bdaddr_t));
}

void baswap(bdaddr_t *dst, bdaddr_t *src);

/* Common socket structures and functions */

#define bt_sk(__sk) ((struct bt_sock *) __sk)

struct bt_sock {
	struct sock sk;
	struct list_head accept_q;
	struct sock *parent;
	unsigned long flags;
	void (*skb_msg_name)(struct sk_buff *, void *, int *);
};

enum {
	BT_SK_DEFER_SETUP,
	BT_SK_SUSPEND,
};

struct bt_sock_list {
	struct hlist_head head;
	rwlock_t          lock;
#ifdef CONFIG_PROC_FS
        int (* custom_seq_show)(struct seq_file *, void *);
#endif
};

int  bt_sock_register(int proto, const struct net_proto_family *ops);
void bt_sock_unregister(int proto);
void bt_sock_link(struct bt_sock_list *l, struct sock *s);
void bt_sock_unlink(struct bt_sock_list *l, struct sock *s);
int  bt_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len,
		     int flags);
int  bt_sock_stream_recvmsg(struct socket *sock, struct msghdr *msg,
			    size_t len, int flags);
uint bt_sock_poll(struct file *file, struct socket *sock, poll_table *wait);
int  bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
int  bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
int  bt_sock_wait_ready(struct sock *sk, unsigned long flags);

void bt_accept_enqueue(struct sock *parent, struct sock *sk);
void bt_accept_unlink(struct sock *sk);
struct sock *bt_accept_dequeue(struct sock *parent, struct socket *newsock);

/* Skb helpers */
struct l2cap_ctrl {
	__u8	sframe:1,
		poll:1,
		final:1,
		fcs:1,
		sar:2,
		super:2;
	__u16	reqseq;
	__u16	txseq;
	__u8	retries;
	__le16  psm;
	bdaddr_t bdaddr;
	struct l2cap_chan *chan;
};

struct hci_dev;

typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status, u16 opcode);
typedef void (*hci_req_complete_skb_t)(struct hci_dev *hdev, u8 status,
				       u16 opcode, struct sk_buff *skb);

#define HCI_REQ_START	BIT(0)
#define HCI_REQ_SKB	BIT(1)

struct hci_ctrl {
	__u16 opcode;
	u8 req_flags;
	u8 req_event;
	union {
		hci_req_complete_t req_complete;
		hci_req_complete_skb_t req_complete_skb;
	};
};

struct bt_skb_cb {
	__u8 pkt_type;
	__u8 force_active;
	__u16 expect;
	__u8 incoming:1;
	union {
		struct l2cap_ctrl l2cap;
		struct hci_ctrl hci;
	};
};
#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))

#define hci_skb_pkt_type(skb) bt_cb((skb))->pkt_type
#define hci_skb_expect(skb) bt_cb((skb))->expect
#define hci_skb_opcode(skb) bt_cb((skb))->hci.opcode

static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
{
	struct sk_buff *skb;

	skb = alloc_skb(len + BT_SKB_RESERVE, how);
	if (skb)
		skb_reserve(skb, BT_SKB_RESERVE);
	return skb;
}

static inline struct sk_buff *bt_skb_send_alloc(struct sock *sk,
					unsigned long len, int nb, int *err)
{
	struct sk_buff *skb;

	skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err);
	if (skb)
		skb_reserve(skb, BT_SKB_RESERVE);

	if (!skb && *err)
		return NULL;

	*err = sock_error(sk);
	if (*err)
		goto out;

	if (sk->sk_shutdown) {
		*err = -ECONNRESET;
		goto out;
	}

	return skb;

out:
	kfree_skb(skb);
	return NULL;
}

int bt_to_errno(__u16 code);

void hci_sock_set_flag(struct sock *sk, int nr);
void hci_sock_clear_flag(struct sock *sk, int nr);
int hci_sock_test_flag(struct sock *sk, int nr);
unsigned short hci_sock_get_channel(struct sock *sk);
u32 hci_sock_get_cookie(struct sock *sk);

int hci_sock_init(void);
void hci_sock_cleanup(void);

int bt_sysfs_init(void);
void bt_sysfs_cleanup(void);

int bt_procfs_init(struct net *net, const char *name,
		   struct bt_sock_list *sk_list,
		   int (*seq_show)(struct seq_file *, void *));
void bt_procfs_cleanup(struct net *net, const char *name);

extern struct dentry *bt_debugfs;

int l2cap_init(void);
void l2cap_exit(void);

#if IS_ENABLED(CONFIG_BT_BREDR)
int sco_init(void);
void sco_exit(void);
#else
static inline int sco_init(void)
{
	return 0;
}

static inline void sco_exit(void)
{
}
#endif

int mgmt_init(void);
void mgmt_exit(void);

void bt_sock_reclassify_lock(struct sock *sk, int proto);

#endif /* __BLUETOOTH_H */
Commit	Line	Data
38351c66	1	/*
1da177e4 LT	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
38351c66 GP	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
1da177e4 LT	18	OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1da177e4 LT	19
38351c66 GP	20	ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
38351c66 GP	21	COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
1da177e4 LT	22	SOFTWARE IS DISCLAIMED.
	23	*/
	24
	25	#ifndef __BLUETOOTH_H
	26	#define __BLUETOOTH_H
	27
1da177e4 LT	28	#include <linux/poll.h>
1da177e4 LT	29	#include <net/sock.h>
256a06c8	30	#include <linux/seq_file.h>
1da177e4	31
4d9b9718	32	#define BT_SUBSYS_VERSION 2
84b92c3e	33	#define BT_SUBSYS_REVISION 22
dd31506d	34
1da177e4 LT	35	#ifndef AF_BLUETOOTH
	36	#define AF_BLUETOOTH 31
	37	#define PF_BLUETOOTH AF_BLUETOOTH
	38	#endif
	39
d095c1eb AE	40	/* Bluetooth versions */
	41	#define BLUETOOTH_VER_1_1 1
	42	#define BLUETOOTH_VER_1_2 2
	43	#define BLUETOOTH_VER_2_0 3
	44
1da177e4 LT	45	/* Reserv for core and drivers use */
	46	#define BT_SKB_RESERVE 8
	47
	48	#define BTPROTO_L2CAP 0
	49	#define BTPROTO_HCI 1
	50	#define BTPROTO_SCO 2
	51	#define BTPROTO_RFCOMM 3
	52	#define BTPROTO_BNEP 4
	53	#define BTPROTO_CMTP 5
	54	#define BTPROTO_HIDP 6
	55	#define BTPROTO_AVDTP 7
	56
	57	#define SOL_HCI 0
	58	#define SOL_L2CAP 6
	59	#define SOL_SCO 17
	60	#define SOL_RFCOMM 18
	61
8c1b2355 MH	62	#define BT_SECURITY 4
	63	struct bt_security {
	64	__u8 level;
8f360119	65	__u8 key_size;
8c1b2355 MH	66	};
	67	#define BT_SECURITY_SDP 0
	68	#define BT_SECURITY_LOW 1
	69	#define BT_SECURITY_MEDIUM 2
	70	#define BT_SECURITY_HIGH 3
7b5a9241	71	#define BT_SECURITY_FIPS 4
8c1b2355	72
c4f912e1 MH	73	#define BT_DEFER_SETUP 7
c4f912e1 MH	74
e702112f AE	75	#define BT_FLUSHABLE 8
	76
	77	#define BT_FLUSHABLE_OFF 0
	78	#define BT_FLUSHABLE_ON 1
	79
14b12d0b JG	80	#define BT_POWER 9
	81	struct bt_power {
	82	__u8 force_active;
	83	};
	84	#define BT_POWER_FORCE_ACTIVE_OFF 0
	85	#define BT_POWER_FORCE_ACTIVE_ON 1
	86
c14968b0 MM	87	#define BT_CHANNEL_POLICY 10
	88
	89	/* BR/EDR only (default policy)
	90	* AMP controllers cannot be used.
	91	* Channel move requests from the remote device are denied.
	92	* If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
	93	*/
	94	#define BT_CHANNEL_POLICY_BREDR_ONLY 0
	95
	96	/* BR/EDR Preferred
	97	* Allow use of AMP controllers.
	98	* If the L2CAP channel is currently on AMP, move it to BR/EDR.
	99	* Channel move requests from the remote device are allowed.
	100	*/
	101	#define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
	102
	103	/* AMP Preferred
	104	* Allow use of AMP controllers
	105	* If the L2CAP channel is currently on BR/EDR and AMP controller
	106	* resources are available, initiate a channel move to AMP.
	107	* Channel move requests from the remote device are allowed.
	108	* If the L2CAP socket has not been connected yet, try to create
	109	* and configure the channel directly on an AMP controller rather
	110	* than BR/EDR.
	111	*/
	112	#define BT_CHANNEL_POLICY_AMP_PREFERRED 2
	113
ad10b1a4 FD	114	#define BT_VOICE 11
	115	struct bt_voice {
	116	__u16 setting;
	117	};
	118
	119	#define BT_VOICE_TRANSPARENT 0x0003
	120	#define BT_VOICE_CVSD_16BIT 0x0060
	121
1f435424 JH	122	#define BT_SNDMTU 12
	123	#define BT_RCVMTU 13
	124
3ed7003e	125	__printf(1, 2)
2b0bf6c8	126	void bt_info(const char *fmt, ...);
3ed7003e	127	__printf(1, 2)
594b31ea FD	128	void bt_warn(const char *fmt, ...);
594b31ea FD	129	__printf(1, 2)
2b0bf6c8	130	void bt_err(const char *fmt, ...);
e781b7f7 SJ	131	__printf(1, 2)
e781b7f7 SJ	132	void bt_err_ratelimited(const char *fmt, ...);
3ed7003e JP	133
3ed7003e JP	134	#define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
594b31ea	135	#define BT_WARN(fmt, ...) bt_warn(fmt "\n", ##__VA_ARGS__)
3ed7003e JP	136	#define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
3ed7003e JP	137	#define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
1da177e4	138
e781b7f7 SJ	139	#define BT_ERR_RATELIMITED(fmt, ...) bt_err_ratelimited(fmt "\n", ##__VA_ARGS__)
e781b7f7 SJ	140
6f558b70 LP	141	#define bt_dev_info(hdev, fmt, ...) \
6f558b70 LP	142	BT_INFO("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
594b31ea FD	143	#define bt_dev_warn(hdev, fmt, ...) \
594b31ea FD	144	BT_WARN("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
6f558b70 LP	145	#define bt_dev_err(hdev, fmt, ...) \
	146	BT_ERR("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
	147	#define bt_dev_dbg(hdev, fmt, ...) \
	148	BT_DBG("%s: " fmt, (hdev)->name, ##__VA_ARGS__)
	149
1da177e4 LT	150	/* Connection and socket states */
	151	enum {
	152	BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
	153	BT_OPEN,
	154	BT_BOUND,
	155	BT_LISTEN,
	156	BT_CONNECT,
	157	BT_CONNECT2,
	158	BT_CONFIG,
	159	BT_DISCONN,
	160	BT_CLOSED
	161	};
	162
20d1803a AE	163	/* If unused will be removed by compiler */
	164	static inline const char *state_to_string(int state)
	165	{
	166	switch (state) {
	167	case BT_CONNECTED:
	168	return "BT_CONNECTED";
	169	case BT_OPEN:
	170	return "BT_OPEN";
	171	case BT_BOUND:
	172	return "BT_BOUND";
	173	case BT_LISTEN:
	174	return "BT_LISTEN";
	175	case BT_CONNECT:
	176	return "BT_CONNECT";
	177	case BT_CONNECT2:
	178	return "BT_CONNECT2";
	179	case BT_CONFIG:
	180	return "BT_CONFIG";
	181	case BT_DISCONN:
	182	return "BT_DISCONN";
	183	case BT_CLOSED:
	184	return "BT_CLOSED";
	185	}
	186
	187	return "invalid state";
	188	}
	189
1da177e4 LT	190	/* BD Address */
	191	typedef struct {
	192	__u8 b[6];
66c853cc	193	} __packed bdaddr_t;
1da177e4	194
591f47f3 AG	195	/* BD Address type */
	196	#define BDADDR_BREDR 0x00
	197	#define BDADDR_LE_PUBLIC 0x01
	198	#define BDADDR_LE_RANDOM 0x02
	199
679efe2b JH	200	static inline bool bdaddr_type_is_valid(__u8 type)
	201	{
	202	switch (type) {
	203	case BDADDR_BREDR:
	204	case BDADDR_LE_PUBLIC:
	205	case BDADDR_LE_RANDOM:
	206	return true;
	207	}
	208
	209	return false;
	210	}
	211
	212	static inline bool bdaddr_type_is_le(__u8 type)
	213	{
	214	switch (type) {
	215	case BDADDR_LE_PUBLIC:
	216	case BDADDR_LE_RANDOM:
	217	return true;
	218	}
	219
	220	return false;
	221	}
	222
a59ac2f7 MH	223	#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
a59ac2f7 MH	224	#define BDADDR_NONE (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
1da177e4 LT	225
1da177e4 LT	226	/* Copy, swap, convert BD Address */
f53c20e9	227	static inline int bacmp(const bdaddr_t ba1, const bdaddr_t ba2)
1da177e4 LT	228	{
	229	return memcmp(ba1, ba2, sizeof(bdaddr_t));
	230	}
f53c20e9	231	static inline void bacpy(bdaddr_t dst, const bdaddr_t src)
1da177e4 LT	232	{
	233	memcpy(dst, src, sizeof(bdaddr_t));
	234	}
	235
	236	void baswap(bdaddr_t dst, bdaddr_t src);
1da177e4 LT	237
	238	/* Common socket structures and functions */
	239
	240	#define bt_sk(__sk) ((struct bt_sock *) __sk)
	241
	242	struct bt_sock {
	243	struct sock sk;
1da177e4 LT	244	struct list_head accept_q;
1da177e4 LT	245	struct sock *parent;
c5daa683	246	unsigned long flags;
d9763698	247	void (skb_msg_name)(struct sk_buff , void , int );
c5daa683 GP	248	};
	249
	250	enum {
	251	BT_SK_DEFER_SETUP,
	252	BT_SK_SUSPEND,
1da177e4 LT	253	};
	254
	255	struct bt_sock_list {
	256	struct hlist_head head;
	257	rwlock_t lock;
256a06c8	258	#ifdef CONFIG_PROC_FS
256a06c8 MY	259	int (* custom_seq_show)(struct seq_file , void );
256a06c8 MY	260	#endif
1da177e4 LT	261	};
1da177e4 LT	262
ec1b4cf7	263	int bt_sock_register(int proto, const struct net_proto_family *ops);
be9f97f0	264	void bt_sock_unregister(int proto);
1da177e4 LT	265	void bt_sock_link(struct bt_sock_list l, struct sock s);
1da177e4 LT	266	void bt_sock_unlink(struct bt_sock_list l, struct sock s);
1b784140 YX	267	int bt_sock_recvmsg(struct socket sock, struct msghdr msg, size_t len,
	268	int flags);
	269	int bt_sock_stream_recvmsg(struct socket sock, struct msghdr msg,
	270	size_t len, int flags);
c3c7ea65	271	uint bt_sock_poll(struct file file, struct socket sock, poll_table *wait);
3241ad82	272	int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
1da177e4	273	int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
e793dcf0	274	int bt_sock_wait_ready(struct sock *sk, unsigned long flags);
1da177e4 LT	275
	276	void bt_accept_enqueue(struct sock parent, struct sock sk);
	277	void bt_accept_unlink(struct sock *sk);
	278	struct sock bt_accept_dequeue(struct sock parent, struct socket *newsock);
	279
	280	/* Skb helpers */
00e3112c	281	struct l2cap_ctrl {
07758991 MH	282	__u8 sframe:1,
	283	poll:1,
	284	final:1,
	285	fcs:1,
	286	sar:2,
	287	super:2;
	288	__u16 reqseq;
	289	__u16 txseq;
	290	__u8 retries;
a4368ff3 JH	291	__le16 psm;
	292	bdaddr_t bdaddr;
	293	struct l2cap_chan *chan;
00e3112c MM	294	};
00e3112c MM	295
3119ae95 JH	296	struct hci_dev;
3119ae95 JH	297
1904a853	298	typedef void (hci_req_complete_t)(struct hci_dev hdev, u8 status, u16 opcode);
e6214487 JH	299	typedef void (hci_req_complete_skb_t)(struct hci_dev hdev, u8 status,
e6214487 JH	300	u16 opcode, struct sk_buff *skb);
3119ae95	301
44d27137 JH	302	#define HCI_REQ_START BIT(0)
	303	#define HCI_REQ_SKB BIT(1)
	304
242c0ebd MH	305	struct hci_ctrl {
242c0ebd MH	306	__u16 opcode;
44d27137	307	u8 req_flags;
242c0ebd	308	u8 req_event;
44d27137 JH	309	union {
	310	hci_req_complete_t req_complete;
	311	hci_req_complete_skb_t req_complete_skb;
	312	};
db6e3e8d JH	313	};
db6e3e8d JH	314
1da177e4	315	struct bt_skb_cb {
0d48d939	316	__u8 pkt_type;
6368c235	317	__u8 force_active;
33e882a5	318	__u16 expect;
6368c235	319	__u8 incoming:1;
db6e3e8d JH	320	union {
db6e3e8d JH	321	struct l2cap_ctrl l2cap;
242c0ebd	322	struct hci_ctrl hci;
db6e3e8d	323	};
1da177e4	324	};
1c2acffb	325	#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
1da177e4	326
f5c4a42a MH	327	#define hci_skb_pkt_type(skb) bt_cb((skb))->pkt_type
	328	#define hci_skb_expect(skb) bt_cb((skb))->expect
	329	#define hci_skb_opcode(skb) bt_cb((skb))->hci.opcode
	330
dd0fc66f	331	static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
1da177e4 LT	332	{
	333	struct sk_buff *skb;
	334
c3c7ea65	335	skb = alloc_skb(len + BT_SKB_RESERVE, how);
5fcc86bd	336	if (skb)
1da177e4	337	skb_reserve(skb, BT_SKB_RESERVE);
1da177e4 LT	338	return skb;
	339	}
	340
5a9d0a3f WR	341	static inline struct sk_buff bt_skb_send_alloc(struct sock sk,
5a9d0a3f WR	342	unsigned long len, int nb, int *err)
1da177e4 LT	343	{
	344	struct sk_buff *skb;
	345
c3c7ea65	346	skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err);
5fcc86bd	347	if (skb)
1da177e4	348	skb_reserve(skb, BT_SKB_RESERVE);
e454c844 GP	349
	350	if (!skb && *err)
	351	return NULL;
	352
	353	*err = sock_error(sk);
	354	if (*err)
	355	goto out;
	356
	357	if (sk->sk_shutdown) {
	358	*err = -ECONNRESET;
	359	goto out;
	360	}
1da177e4 LT	361
1da177e4 LT	362	return skb;
e454c844 GP	363
	364	out:
	365	kfree_skb(skb);
	366	return NULL;
1da177e4 LT	367	}
1da177e4 LT	368
e175072f	369	int bt_to_errno(__u16 code);
1da177e4	370
6befc644 MH	371	void hci_sock_set_flag(struct sock *sk, int nr);
6befc644 MH	372	void hci_sock_clear_flag(struct sock *sk, int nr);
c85be545	373	int hci_sock_test_flag(struct sock *sk, int nr);
d0f172b1	374	unsigned short hci_sock_get_channel(struct sock *sk);
0a86c956	375	u32 hci_sock_get_cookie(struct sock *sk);
6befc644	376
e74e58f8 JP	377	int hci_sock_init(void);
e74e58f8 JP	378	void hci_sock_cleanup(void);
6516455d	379
e74e58f8 JP	380	int bt_sysfs_init(void);
e74e58f8 JP	381	void bt_sysfs_cleanup(void);
6516455d	382
e74e58f8 JP	383	int bt_procfs_init(struct net net, const char name,
	384	struct bt_sock_list *sk_list,
	385	int (seq_show)(struct seq_file , void *));
	386	void bt_procfs_cleanup(struct net net, const char name);
256a06c8	387
aef7d97c	388	extern struct dentry *bt_debugfs;
be9d1227	389
64274518 GP	390	int l2cap_init(void);
64274518 GP	391	void l2cap_exit(void);
64274518	392
ff50e8af	393	#if IS_ENABLED(CONFIG_BT_BREDR)
64274518 GP	394	int sco_init(void);
64274518 GP	395	void sco_exit(void);
ff50e8af AW	396	#else
	397	static inline int sco_init(void)
	398	{
	399	return 0;
	400	}
	401
	402	static inline void sco_exit(void)
	403	{
	404	}
	405	#endif
64274518	406
6d785aa3 JH	407	int mgmt_init(void);
	408	void mgmt_exit(void);
	409
d22015aa OP	410	void bt_sock_reclassify_lock(struct sock *sk, int proto);
d22015aa OP	411
1da177e4	412	#endif /* __BLUETOOTH_H */