[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>

#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_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

__printf(1, 2)
int bt_info(const char *fmt, ...);
__printf(1, 2)
int bt_err(const char *fmt, ...);

#define BT_INFO(fmt, ...)	bt_info(fmt "\n", ##__VA_ARGS__)
#define BT_ERR(fmt, ...)	bt_err(fmt "\n", ##__VA_ARGS__)
#define BT_DBG(fmt, ...)	pr_debug(fmt "\n", ##__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 kiocb *iocb, struct socket *sock,
				struct msghdr *msg, size_t len, int flags);
int  bt_sock_stream_recvmsg(struct kiocb *iocb, 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 {
	unsigned int	sframe:1,
			poll:1,
			final:1,
			fcs:1,
			sar:2,
			super:2;
	__u16		reqseq;
	__u16		txseq;
	__u8		retries;
};

struct hci_dev;

typedef void (*hci_req_complete_t)(struct hci_dev *hdev, u8 status);

struct hci_req_ctrl {
	bool			start;
	u8			event;
	hci_req_complete_t	complete;
};

struct bt_skb_cb {
	__u8 pkt_type;
	__u8 incoming;
	__u16 expect;
	__u8 force_active;
	struct l2cap_ctrl control;
	struct hci_req_ctrl req;
};
#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))

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);
		bt_cb(skb)->incoming  = 0;
	}
	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);
		bt_cb(skb)->incoming  = 0;
	}

	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);

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

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

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

extern struct dentry *bt_debugfs;

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

int sco_init(void);
void sco_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 LT	31
	32	#ifndef AF_BLUETOOTH
	33	#define AF_BLUETOOTH 31
	34	#define PF_BLUETOOTH AF_BLUETOOTH
	35	#endif
	36
d095c1eb AE	37	/* Bluetooth versions */
	38	#define BLUETOOTH_VER_1_1 1
	39	#define BLUETOOTH_VER_1_2 2
	40	#define BLUETOOTH_VER_2_0 3
	41
1da177e4 LT	42	/* Reserv for core and drivers use */
	43	#define BT_SKB_RESERVE 8
	44
	45	#define BTPROTO_L2CAP 0
	46	#define BTPROTO_HCI 1
	47	#define BTPROTO_SCO 2
	48	#define BTPROTO_RFCOMM 3
	49	#define BTPROTO_BNEP 4
	50	#define BTPROTO_CMTP 5
	51	#define BTPROTO_HIDP 6
	52	#define BTPROTO_AVDTP 7
	53
	54	#define SOL_HCI 0
	55	#define SOL_L2CAP 6
	56	#define SOL_SCO 17
	57	#define SOL_RFCOMM 18
	58
8c1b2355 MH	59	#define BT_SECURITY 4
	60	struct bt_security {
	61	__u8 level;
8f360119	62	__u8 key_size;
8c1b2355 MH	63	};
	64	#define BT_SECURITY_SDP 0
	65	#define BT_SECURITY_LOW 1
	66	#define BT_SECURITY_MEDIUM 2
	67	#define BT_SECURITY_HIGH 3
	68
c4f912e1 MH	69	#define BT_DEFER_SETUP 7
c4f912e1 MH	70
e702112f AE	71	#define BT_FLUSHABLE 8
	72
	73	#define BT_FLUSHABLE_OFF 0
	74	#define BT_FLUSHABLE_ON 1
	75
14b12d0b JG	76	#define BT_POWER 9
	77	struct bt_power {
	78	__u8 force_active;
	79	};
	80	#define BT_POWER_FORCE_ACTIVE_OFF 0
	81	#define BT_POWER_FORCE_ACTIVE_ON 1
	82
c14968b0 MM	83	#define BT_CHANNEL_POLICY 10
	84
	85	/* BR/EDR only (default policy)
	86	* AMP controllers cannot be used.
	87	* Channel move requests from the remote device are denied.
	88	* If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
	89	*/
	90	#define BT_CHANNEL_POLICY_BREDR_ONLY 0
	91
	92	/* BR/EDR Preferred
	93	* Allow use of AMP controllers.
	94	* If the L2CAP channel is currently on AMP, move it to BR/EDR.
	95	* Channel move requests from the remote device are allowed.
	96	*/
	97	#define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
	98
	99	/* AMP Preferred
	100	* Allow use of AMP controllers
	101	* If the L2CAP channel is currently on BR/EDR and AMP controller
	102	* resources are available, initiate a channel move to AMP.
	103	* Channel move requests from the remote device are allowed.
	104	* If the L2CAP socket has not been connected yet, try to create
	105	* and configure the channel directly on an AMP controller rather
	106	* than BR/EDR.
	107	*/
	108	#define BT_CHANNEL_POLICY_AMP_PREFERRED 2
	109
ad10b1a4 FD	110	#define BT_VOICE 11
	111	struct bt_voice {
	112	__u16 setting;
	113	};
	114
	115	#define BT_VOICE_TRANSPARENT 0x0003
	116	#define BT_VOICE_CVSD_16BIT 0x0060
	117
3ed7003e JP	118	__printf(1, 2)
	119	int bt_info(const char *fmt, ...);
	120	__printf(1, 2)
	121	int bt_err(const char *fmt, ...);
	122
	123	#define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
	124	#define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
	125	#define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
1da177e4	126
1da177e4 LT	127	/* Connection and socket states */
	128	enum {
	129	BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
	130	BT_OPEN,
	131	BT_BOUND,
	132	BT_LISTEN,
	133	BT_CONNECT,
	134	BT_CONNECT2,
	135	BT_CONFIG,
	136	BT_DISCONN,
	137	BT_CLOSED
	138	};
	139
20d1803a AE	140	/* If unused will be removed by compiler */
	141	static inline const char *state_to_string(int state)
	142	{
	143	switch (state) {
	144	case BT_CONNECTED:
	145	return "BT_CONNECTED";
	146	case BT_OPEN:
	147	return "BT_OPEN";
	148	case BT_BOUND:
	149	return "BT_BOUND";
	150	case BT_LISTEN:
	151	return "BT_LISTEN";
	152	case BT_CONNECT:
	153	return "BT_CONNECT";
	154	case BT_CONNECT2:
	155	return "BT_CONNECT2";
	156	case BT_CONFIG:
	157	return "BT_CONFIG";
	158	case BT_DISCONN:
	159	return "BT_DISCONN";
	160	case BT_CLOSED:
	161	return "BT_CLOSED";
	162	}
	163
	164	return "invalid state";
	165	}
	166
1da177e4 LT	167	/* BD Address */
	168	typedef struct {
	169	__u8 b[6];
66c853cc	170	} __packed bdaddr_t;
1da177e4	171
591f47f3 AG	172	/* BD Address type */
	173	#define BDADDR_BREDR 0x00
	174	#define BDADDR_LE_PUBLIC 0x01
	175	#define BDADDR_LE_RANDOM 0x02
	176
679efe2b JH	177	static inline bool bdaddr_type_is_valid(__u8 type)
	178	{
	179	switch (type) {
	180	case BDADDR_BREDR:
	181	case BDADDR_LE_PUBLIC:
	182	case BDADDR_LE_RANDOM:
	183	return true;
	184	}
	185
	186	return false;
	187	}
	188
	189	static inline bool bdaddr_type_is_le(__u8 type)
	190	{
	191	switch (type) {
	192	case BDADDR_LE_PUBLIC:
	193	case BDADDR_LE_RANDOM:
	194	return true;
	195	}
	196
	197	return false;
	198	}
	199
a59ac2f7 MH	200	#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
a59ac2f7 MH	201	#define BDADDR_NONE (&(bdaddr_t) {{0xff, 0xff, 0xff, 0xff, 0xff, 0xff}})
1da177e4 LT	202
1da177e4 LT	203	/* Copy, swap, convert BD Address */
f53c20e9	204	static inline int bacmp(const bdaddr_t ba1, const bdaddr_t ba2)
1da177e4 LT	205	{
	206	return memcmp(ba1, ba2, sizeof(bdaddr_t));
	207	}
f53c20e9	208	static inline void bacpy(bdaddr_t dst, const bdaddr_t src)
1da177e4 LT	209	{
	210	memcpy(dst, src, sizeof(bdaddr_t));
	211	}
	212
	213	void baswap(bdaddr_t dst, bdaddr_t src);
1da177e4 LT	214
	215	/* Common socket structures and functions */
	216
	217	#define bt_sk(__sk) ((struct bt_sock *) __sk)
	218
	219	struct bt_sock {
	220	struct sock sk;
1da177e4 LT	221	struct list_head accept_q;
1da177e4 LT	222	struct sock *parent;
c5daa683	223	unsigned long flags;
d9763698	224	void (skb_msg_name)(struct sk_buff , void , int );
c5daa683 GP	225	};
	226
	227	enum {
	228	BT_SK_DEFER_SETUP,
	229	BT_SK_SUSPEND,
1da177e4 LT	230	};
	231
	232	struct bt_sock_list {
	233	struct hlist_head head;
	234	rwlock_t lock;
256a06c8	235	#ifdef CONFIG_PROC_FS
256a06c8 MY	236	int (* custom_seq_show)(struct seq_file , void );
256a06c8 MY	237	#endif
1da177e4 LT	238	};
1da177e4 LT	239
ec1b4cf7	240	int bt_sock_register(int proto, const struct net_proto_family *ops);
be9f97f0	241	void bt_sock_unregister(int proto);
1da177e4 LT	242	void bt_sock_link(struct bt_sock_list l, struct sock s);
1da177e4 LT	243	void bt_sock_unlink(struct bt_sock_list l, struct sock s);
5a9d0a3f WR	244	int bt_sock_recvmsg(struct kiocb iocb, struct socket sock,
5a9d0a3f WR	245	struct msghdr *msg, size_t len, int flags);
796c86ee MM	246	int bt_sock_stream_recvmsg(struct kiocb iocb, struct socket sock,
796c86ee MM	247	struct msghdr *msg, size_t len, int flags);
c3c7ea65	248	uint bt_sock_poll(struct file file, struct socket sock, poll_table *wait);
3241ad82	249	int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
1da177e4	250	int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
e793dcf0	251	int bt_sock_wait_ready(struct sock *sk, unsigned long flags);
1da177e4 LT	252
	253	void bt_accept_enqueue(struct sock parent, struct sock sk);
	254	void bt_accept_unlink(struct sock *sk);
	255	struct sock bt_accept_dequeue(struct sock parent, struct socket *newsock);
	256
	257	/* Skb helpers */
00e3112c	258	struct l2cap_ctrl {
c3c7ea65 GP	259	unsigned int sframe:1,
	260	poll:1,
	261	final:1,
	262	fcs:1,
	263	sar:2,
	264	super:2;
00e3112c MM	265	__u16 reqseq;
	266	__u16 txseq;
	267	__u8 retries;
	268	};
	269
3119ae95 JH	270	struct hci_dev;
	271
	272	typedef void (hci_req_complete_t)(struct hci_dev hdev, u8 status);
	273
	274	struct hci_req_ctrl {
	275	bool start;
02350a72	276	u8 event;
3119ae95 JH	277	hci_req_complete_t complete;
	278	};
	279
1da177e4	280	struct bt_skb_cb {
0d48d939 MH	281	__u8 pkt_type;
0d48d939 MH	282	__u8 incoming;
33e882a5	283	__u16 expect;
14b12d0b	284	__u8 force_active;
00e3112c	285	struct l2cap_ctrl control;
3119ae95	286	struct hci_req_ctrl req;
1da177e4	287	};
1c2acffb	288	#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
1da177e4	289
dd0fc66f	290	static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
1da177e4 LT	291	{
	292	struct sk_buff *skb;
	293
c3c7ea65 GP	294	skb = alloc_skb(len + BT_SKB_RESERVE, how);
c3c7ea65 GP	295	if (skb) {
1da177e4 LT	296	skb_reserve(skb, BT_SKB_RESERVE);
	297	bt_cb(skb)->incoming = 0;
	298	}
	299	return skb;
	300	}
	301
5a9d0a3f WR	302	static inline struct sk_buff bt_skb_send_alloc(struct sock sk,
5a9d0a3f WR	303	unsigned long len, int nb, int *err)
1da177e4 LT	304	{
	305	struct sk_buff *skb;
	306
c3c7ea65 GP	307	skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err);
c3c7ea65 GP	308	if (skb) {
1da177e4 LT	309	skb_reserve(skb, BT_SKB_RESERVE);
	310	bt_cb(skb)->incoming = 0;
	311	}
e454c844 GP	312
	313	if (!skb && *err)
	314	return NULL;
	315
	316	*err = sock_error(sk);
	317	if (*err)
	318	goto out;
	319
	320	if (sk->sk_shutdown) {
	321	*err = -ECONNRESET;
	322	goto out;
	323	}
1da177e4 LT	324
1da177e4 LT	325	return skb;
e454c844 GP	326
	327	out:
	328	kfree_skb(skb);
	329	return NULL;
1da177e4 LT	330	}
1da177e4 LT	331
e175072f	332	int bt_to_errno(__u16 code);
1da177e4	333
6516455d	334	extern int hci_sock_init(void);
04005dd9	335	extern void hci_sock_cleanup(void);
6516455d MH	336
	337	extern int bt_sysfs_init(void);
	338	extern void bt_sysfs_cleanup(void);
	339
b0316615	340	extern int bt_procfs_init(struct net net, const char name,
256a06c8 MY	341	struct bt_sock_list* sk_list,
	342	int (* seq_show)(struct seq_file , void ));
	343	extern void bt_procfs_cleanup(struct net net, const char name);
	344
aef7d97c	345	extern struct dentry *bt_debugfs;
be9d1227	346
64274518 GP	347	int l2cap_init(void);
64274518 GP	348	void l2cap_exit(void);
64274518	349
64274518 GP	350	int sco_init(void);
64274518 GP	351	void sco_exit(void);
64274518	352
d22015aa OP	353	void bt_sock_reclassify_lock(struct sock *sk, int proto);
d22015aa OP	354
1da177e4	355	#endif /* __BLUETOOTH_H */