[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 <asm/types.h>
#include <asm/byteorder.h>
#include <linux/list.h>
#include <linux/poll.h>
#include <net/sock.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

__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
};

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

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

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

void baswap(bdaddr_t *dst, bdaddr_t *src);
char *batostr(bdaddr_t *ba);
bdaddr_t *strtoba(char *str);

/* Common socket structures and functions */

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

struct bt_sock {
	struct sock sk;
	bdaddr_t    src;
	bdaddr_t    dst;
	struct list_head accept_q;
	struct sock *parent;
	u32 defer_setup;
};

struct bt_sock_list {
	struct hlist_head head;
	rwlock_t          lock;
};

int  bt_sock_register(int proto, const struct net_proto_family *ops);
int  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);

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 bt_skb_cb {
	__u8 pkt_type;
	__u8 incoming;
	__u16 expect;
	__u16 tx_seq;
	__u8 retries;
	__u8 sar;
	unsigned short channel;
	__u8 force_active;
};
#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;

	if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
		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;

	release_sock(sk);
	if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
		skb_reserve(skb, BT_SKB_RESERVE);
		bt_cb(skb)->incoming  = 0;
	}
	lock_sock(sk);

	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 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
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 __BLUETOOTH_H
	26	#define __BLUETOOTH_H
	27
	28	#include <asm/types.h>
	29	#include <asm/byteorder.h>
	30	#include <linux/list.h>
	31	#include <linux/poll.h>
	32	#include <net/sock.h>
	33
	34	#ifndef AF_BLUETOOTH
	35	#define AF_BLUETOOTH 31
	36	#define PF_BLUETOOTH AF_BLUETOOTH
	37	#endif
	38
d095c1eb AE	39	/* Bluetooth versions */
	40	#define BLUETOOTH_VER_1_1 1
	41	#define BLUETOOTH_VER_1_2 2
	42	#define BLUETOOTH_VER_2_0 3
	43
1da177e4 LT	44	/* Reserv for core and drivers use */
	45	#define BT_SKB_RESERVE 8
	46
	47	#define BTPROTO_L2CAP 0
	48	#define BTPROTO_HCI 1
	49	#define BTPROTO_SCO 2
	50	#define BTPROTO_RFCOMM 3
	51	#define BTPROTO_BNEP 4
	52	#define BTPROTO_CMTP 5
	53	#define BTPROTO_HIDP 6
	54	#define BTPROTO_AVDTP 7
	55
	56	#define SOL_HCI 0
	57	#define SOL_L2CAP 6
	58	#define SOL_SCO 17
	59	#define SOL_RFCOMM 18
	60
8c1b2355 MH	61	#define BT_SECURITY 4
	62	struct bt_security {
	63	__u8 level;
8f360119	64	__u8 key_size;
8c1b2355 MH	65	};
	66	#define BT_SECURITY_SDP 0
	67	#define BT_SECURITY_LOW 1
	68	#define BT_SECURITY_MEDIUM 2
	69	#define BT_SECURITY_HIGH 3
	70
c4f912e1 MH	71	#define BT_DEFER_SETUP 7
c4f912e1 MH	72
e702112f AE	73	#define BT_FLUSHABLE 8
	74
	75	#define BT_FLUSHABLE_OFF 0
	76	#define BT_FLUSHABLE_ON 1
	77
14b12d0b JG	78	#define BT_POWER 9
	79	struct bt_power {
	80	__u8 force_active;
	81	};
	82	#define BT_POWER_FORCE_ACTIVE_OFF 0
	83	#define BT_POWER_FORCE_ACTIVE_ON 1
	84
c14968b0 MM	85	#define BT_CHANNEL_POLICY 10
	86
	87	/* BR/EDR only (default policy)
	88	* AMP controllers cannot be used.
	89	* Channel move requests from the remote device are denied.
	90	* If the L2CAP channel is currently using AMP, move the channel to BR/EDR.
	91	*/
	92	#define BT_CHANNEL_POLICY_BREDR_ONLY 0
	93
	94	/* BR/EDR Preferred
	95	* Allow use of AMP controllers.
	96	* If the L2CAP channel is currently on AMP, move it to BR/EDR.
	97	* Channel move requests from the remote device are allowed.
	98	*/
	99	#define BT_CHANNEL_POLICY_BREDR_PREFERRED 1
	100
	101	/* AMP Preferred
	102	* Allow use of AMP controllers
	103	* If the L2CAP channel is currently on BR/EDR and AMP controller
	104	* resources are available, initiate a channel move to AMP.
	105	* Channel move requests from the remote device are allowed.
	106	* If the L2CAP socket has not been connected yet, try to create
	107	* and configure the channel directly on an AMP controller rather
	108	* than BR/EDR.
	109	*/
	110	#define BT_CHANNEL_POLICY_AMP_PREFERRED 2
	111
3ed7003e JP	112	__printf(1, 2)
	113	int bt_info(const char *fmt, ...);
	114	__printf(1, 2)
	115	int bt_err(const char *fmt, ...);
	116
	117	#define BT_INFO(fmt, ...) bt_info(fmt "\n", ##__VA_ARGS__)
	118	#define BT_ERR(fmt, ...) bt_err(fmt "\n", ##__VA_ARGS__)
	119	#define BT_DBG(fmt, ...) pr_debug(fmt "\n", ##__VA_ARGS__)
1da177e4	120
1da177e4 LT	121	/* Connection and socket states */
	122	enum {
	123	BT_CONNECTED = 1, /* Equal to TCP_ESTABLISHED to make net code happy */
	124	BT_OPEN,
	125	BT_BOUND,
	126	BT_LISTEN,
	127	BT_CONNECT,
	128	BT_CONNECT2,
	129	BT_CONFIG,
	130	BT_DISCONN,
	131	BT_CLOSED
	132	};
	133
1da177e4 LT	134	/* BD Address */
	135	typedef struct {
	136	__u8 b[6];
66c853cc	137	} __packed bdaddr_t;
1da177e4 LT	138
	139	#define BDADDR_ANY (&(bdaddr_t) {{0, 0, 0, 0, 0, 0}})
	140	#define BDADDR_LOCAL (&(bdaddr_t) {{0, 0, 0, 0xff, 0xff, 0xff}})
	141
	142	/* Copy, swap, convert BD Address */
	143	static inline int bacmp(bdaddr_t ba1, bdaddr_t ba2)
	144	{
	145	return memcmp(ba1, ba2, sizeof(bdaddr_t));
	146	}
	147	static inline void bacpy(bdaddr_t dst, bdaddr_t src)
	148	{
	149	memcpy(dst, src, sizeof(bdaddr_t));
	150	}
	151
	152	void baswap(bdaddr_t dst, bdaddr_t src);
	153	char batostr(bdaddr_t ba);
	154	bdaddr_t strtoba(char str);
	155
	156	/* Common socket structures and functions */
	157
	158	#define bt_sk(__sk) ((struct bt_sock *) __sk)
	159
	160	struct bt_sock {
	161	struct sock sk;
	162	bdaddr_t src;
	163	bdaddr_t dst;
	164	struct list_head accept_q;
	165	struct sock *parent;
c4f912e1	166	u32 defer_setup;
1da177e4 LT	167	};
	168
	169	struct bt_sock_list {
	170	struct hlist_head head;
	171	rwlock_t lock;
	172	};
	173
ec1b4cf7	174	int bt_sock_register(int proto, const struct net_proto_family *ops);
1da177e4 LT	175	int bt_sock_unregister(int proto);
	176	void bt_sock_link(struct bt_sock_list l, struct sock s);
	177	void bt_sock_unlink(struct bt_sock_list l, struct sock s);
5a9d0a3f WR	178	int bt_sock_recvmsg(struct kiocb iocb, struct socket sock,
5a9d0a3f WR	179	struct msghdr *msg, size_t len, int flags);
796c86ee MM	180	int bt_sock_stream_recvmsg(struct kiocb iocb, struct socket sock,
796c86ee MM	181	struct msghdr *msg, size_t len, int flags);
1da177e4	182	uint bt_sock_poll(struct file * file, struct socket sock, poll_table wait);
3241ad82	183	int bt_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg);
1da177e4 LT	184	int bt_sock_wait_state(struct sock *sk, int state, unsigned long timeo);
	185
	186	void bt_accept_enqueue(struct sock parent, struct sock sk);
	187	void bt_accept_unlink(struct sock *sk);
	188	struct sock bt_accept_dequeue(struct sock parent, struct socket *newsock);
	189
	190	/* Skb helpers */
	191	struct bt_skb_cb {
0d48d939 MH	192	__u8 pkt_type;
0d48d939 MH	193	__u8 incoming;
33e882a5	194	__u16 expect;
836be934	195	__u16 tx_seq;
e90bac06	196	__u8 retries;
8f17154f	197	__u8 sar;
a40c406c	198	unsigned short channel;
14b12d0b	199	__u8 force_active;
1da177e4	200	};
1c2acffb	201	#define bt_cb(skb) ((struct bt_skb_cb *)((skb)->cb))
1da177e4	202
dd0fc66f	203	static inline struct sk_buff *bt_skb_alloc(unsigned int len, gfp_t how)
1da177e4 LT	204	{
	205	struct sk_buff *skb;
	206
	207	if ((skb = alloc_skb(len + BT_SKB_RESERVE, how))) {
	208	skb_reserve(skb, BT_SKB_RESERVE);
	209	bt_cb(skb)->incoming = 0;
	210	}
	211	return skb;
	212	}
	213
5a9d0a3f WR	214	static inline struct sk_buff bt_skb_send_alloc(struct sock sk,
5a9d0a3f WR	215	unsigned long len, int nb, int *err)
1da177e4 LT	216	{
	217	struct sk_buff *skb;
	218
e454c844	219	release_sock(sk);
1da177e4 LT	220	if ((skb = sock_alloc_send_skb(sk, len + BT_SKB_RESERVE, nb, err))) {
	221	skb_reserve(skb, BT_SKB_RESERVE);
	222	bt_cb(skb)->incoming = 0;
	223	}
e454c844 GP	224	lock_sock(sk);
	225
	226	if (!skb && *err)
	227	return NULL;
	228
	229	*err = sock_error(sk);
	230	if (*err)
	231	goto out;
	232
	233	if (sk->sk_shutdown) {
	234	*err = -ECONNRESET;
	235	goto out;
	236	}
1da177e4 LT	237
1da177e4 LT	238	return skb;
e454c844 GP	239
	240	out:
	241	kfree_skb(skb);
	242	return NULL;
1da177e4 LT	243	}
1da177e4 LT	244
e175072f	245	int bt_to_errno(__u16 code);
1da177e4	246
6516455d	247	extern int hci_sock_init(void);
04005dd9	248	extern void hci_sock_cleanup(void);
6516455d MH	249
	250	extern int bt_sysfs_init(void);
	251	extern void bt_sysfs_cleanup(void);
	252
aef7d97c	253	extern struct dentry *bt_debugfs;
be9d1227	254
64274518 GP	255	int l2cap_init(void);
64274518 GP	256	void l2cap_exit(void);
64274518	257
64274518 GP	258	int sco_init(void);
64274518 GP	259	void sco_exit(void);
64274518	260
d22015aa OP	261	void bt_sock_reclassify_lock(struct sock *sk, int proto);
d22015aa OP	262
1da177e4	263	#endif /* __BLUETOOTH_H */