[deliverable/linux.git] / include / net / bluetooth / l2cap.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 __L2CAP_H
#define __L2CAP_H

/* L2CAP defaults */
#define L2CAP_DEFAULT_MTU	672
#define L2CAP_DEFAULT_FLUSH_TO	0xFFFF

#define L2CAP_CONN_TIMEOUT	(40000) /* 40 seconds */
#define L2CAP_INFO_TIMEOUT	(4000)  /*  4 seconds */

/* L2CAP socket address */
struct sockaddr_l2 {
	sa_family_t	l2_family;
	__le16		l2_psm;
	bdaddr_t	l2_bdaddr;
	__le16		l2_cid;
};

/* L2CAP socket options */
#define L2CAP_OPTIONS	0x01
struct l2cap_options {
	__u16 omtu;
	__u16 imtu;
	__u16 flush_to;
	__u8  mode;
};

#define L2CAP_CONNINFO	0x02
struct l2cap_conninfo {
	__u16 hci_handle;
	__u8  dev_class[3];
};

#define L2CAP_LM	0x03
#define L2CAP_LM_MASTER		0x0001
#define L2CAP_LM_AUTH		0x0002
#define L2CAP_LM_ENCRYPT	0x0004
#define L2CAP_LM_TRUSTED	0x0008
#define L2CAP_LM_RELIABLE	0x0010
#define L2CAP_LM_SECURE		0x0020

/* L2CAP command codes */
#define L2CAP_COMMAND_REJ 0x01
#define L2CAP_CONN_REQ    0x02
#define L2CAP_CONN_RSP    0x03
#define L2CAP_CONF_REQ    0x04
#define L2CAP_CONF_RSP    0x05
#define L2CAP_DISCONN_REQ 0x06
#define L2CAP_DISCONN_RSP 0x07
#define L2CAP_ECHO_REQ    0x08
#define L2CAP_ECHO_RSP    0x09
#define L2CAP_INFO_REQ    0x0a
#define L2CAP_INFO_RSP    0x0b

/* L2CAP structures */
struct l2cap_hdr {
	__le16     len;
	__le16     cid;
} __attribute__ ((packed));
#define L2CAP_HDR_SIZE		4

struct l2cap_cmd_hdr {
	__u8       code;
	__u8       ident;
	__le16     len;
} __attribute__ ((packed));
#define L2CAP_CMD_HDR_SIZE	4

struct l2cap_cmd_rej {
	__le16     reason;
} __attribute__ ((packed));

struct l2cap_conn_req {
	__le16     psm;
	__le16     scid;
} __attribute__ ((packed));

struct l2cap_conn_rsp {
	__le16     dcid;
	__le16     scid;
	__le16     result;
	__le16     status;
} __attribute__ ((packed));

/* connect result */
#define L2CAP_CR_SUCCESS    0x0000
#define L2CAP_CR_PEND       0x0001
#define L2CAP_CR_BAD_PSM    0x0002
#define L2CAP_CR_SEC_BLOCK  0x0003
#define L2CAP_CR_NO_MEM     0x0004

/* connect status */
#define L2CAP_CS_NO_INFO      0x0000
#define L2CAP_CS_AUTHEN_PEND  0x0001
#define L2CAP_CS_AUTHOR_PEND  0x0002

struct l2cap_conf_req {
	__le16     dcid;
	__le16     flags;
	__u8       data[0];
} __attribute__ ((packed));

struct l2cap_conf_rsp {
	__le16     scid;
	__le16     flags;
	__le16     result;
	__u8       data[0];
} __attribute__ ((packed));

#define L2CAP_CONF_SUCCESS	0x0000
#define L2CAP_CONF_UNACCEPT	0x0001
#define L2CAP_CONF_REJECT	0x0002
#define L2CAP_CONF_UNKNOWN	0x0003

struct l2cap_conf_opt {
	__u8       type;
	__u8       len;
	__u8       val[0];
} __attribute__ ((packed));
#define L2CAP_CONF_OPT_SIZE	2

#define L2CAP_CONF_MTU		0x01
#define L2CAP_CONF_FLUSH_TO	0x02
#define L2CAP_CONF_QOS		0x03
#define L2CAP_CONF_RFC		0x04

#define L2CAP_CONF_MAX_SIZE	22

struct l2cap_conf_rfc {
	__u8       mode;
	__u8       txwin_size;
	__u8       max_transmit;
	__le16     retrans_timeout;
	__le16     monitor_timeout;
	__le16     max_pdu_size;
} __attribute__ ((packed));

#define L2CAP_MODE_BASIC	0x00
#define L2CAP_MODE_RETRANS	0x01
#define L2CAP_MODE_FLOWCTL	0x02

struct l2cap_disconn_req {
	__le16     dcid;
	__le16     scid;
} __attribute__ ((packed));

struct l2cap_disconn_rsp {
	__le16     dcid;
	__le16     scid;
} __attribute__ ((packed));

struct l2cap_info_req {
	__le16      type;
} __attribute__ ((packed));

struct l2cap_info_rsp {
	__le16      type;
	__le16      result;
	__u8        data[0];
} __attribute__ ((packed));

/* info type */
#define L2CAP_IT_CL_MTU     0x0001
#define L2CAP_IT_FEAT_MASK  0x0002
#define L2CAP_IT_FIXED_CHAN 0x0003

/* info result */
#define L2CAP_IR_SUCCESS    0x0000
#define L2CAP_IR_NOTSUPP    0x0001

/* ----- L2CAP connections ----- */
struct l2cap_chan_list {
	struct sock	*head;
	rwlock_t	lock;
	long		num;
};

struct l2cap_conn {
	struct hci_conn	*hcon;

	bdaddr_t	*dst;
	bdaddr_t	*src;

	unsigned int	mtu;

	__u32		feat_mask;

	__u8		info_state;
	__u8		info_ident;

	struct timer_list info_timer;

	spinlock_t	lock;

	struct sk_buff *rx_skb;
	__u32		rx_len;
	__u8		rx_ident;
	__u8		tx_ident;

	__u8		disc_reason;

	struct l2cap_chan_list chan_list;
};

#define L2CAP_INFO_CL_MTU_REQ_SENT	0x01
#define L2CAP_INFO_FEAT_MASK_REQ_SENT	0x04
#define L2CAP_INFO_FEAT_MASK_REQ_DONE	0x08

/* ----- L2CAP channel and socket info ----- */
#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)

struct l2cap_pinfo {
	struct bt_sock	bt;
	__le16		psm;
	__u16		dcid;
	__u16		scid;

	__u16		imtu;
	__u16		omtu;
	__u16		flush_to;
	__u8            sec_level;
	__u8		role_switch;
	__u8            force_reliable;

	__u8		conf_req[64];
	__u8		conf_len;
	__u8		conf_state;
	__u8		conf_retry;

	__u8		ident;

	__le16		sport;

	struct l2cap_conn	*conn;
	struct sock		*next_c;
	struct sock		*prev_c;
};

#define L2CAP_CONF_REQ_SENT	0x01
#define L2CAP_CONF_INPUT_DONE	0x02
#define L2CAP_CONF_OUTPUT_DONE	0x04
#define L2CAP_CONF_CONNECT_PEND	0x80

#define L2CAP_CONF_MAX_RETRIES	2

void l2cap_load(void);

#endif /* __L2CAP_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 __L2CAP_H
	26	#define __L2CAP_H
	27
	28	/* L2CAP defaults */
	29	#define L2CAP_DEFAULT_MTU 672
	30	#define L2CAP_DEFAULT_FLUSH_TO 0xFFFF
	31
4e8402a3 MH	32	#define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */
4e8402a3 MH	33	#define L2CAP_INFO_TIMEOUT (4000) /* 4 seconds */
1da177e4 LT	34
	35	/* L2CAP socket address */
	36	struct sockaddr_l2 {
	37	sa_family_t l2_family;
8e036fc3	38	__le16 l2_psm;
1da177e4	39	bdaddr_t l2_bdaddr;
f29972de	40	__le16 l2_cid;
1da177e4 LT	41	};
	42
	43	/* L2CAP socket options */
	44	#define L2CAP_OPTIONS 0x01
	45	struct l2cap_options {
	46	__u16 omtu;
	47	__u16 imtu;
	48	__u16 flush_to;
	49	__u8 mode;
	50	};
	51
	52	#define L2CAP_CONNINFO 0x02
	53	struct l2cap_conninfo {
	54	__u16 hci_handle;
	55	__u8 dev_class[3];
	56	};
	57
	58	#define L2CAP_LM 0x03
	59	#define L2CAP_LM_MASTER 0x0001
	60	#define L2CAP_LM_AUTH 0x0002
	61	#define L2CAP_LM_ENCRYPT 0x0004
	62	#define L2CAP_LM_TRUSTED 0x0008
	63	#define L2CAP_LM_RELIABLE 0x0010
	64	#define L2CAP_LM_SECURE 0x0020
	65
	66	/* L2CAP command codes */
	67	#define L2CAP_COMMAND_REJ 0x01
	68	#define L2CAP_CONN_REQ 0x02
	69	#define L2CAP_CONN_RSP 0x03
	70	#define L2CAP_CONF_REQ 0x04
	71	#define L2CAP_CONF_RSP 0x05
	72	#define L2CAP_DISCONN_REQ 0x06
	73	#define L2CAP_DISCONN_RSP 0x07
	74	#define L2CAP_ECHO_REQ 0x08
	75	#define L2CAP_ECHO_RSP 0x09
	76	#define L2CAP_INFO_REQ 0x0a
	77	#define L2CAP_INFO_RSP 0x0b
	78
	79	/* L2CAP structures */
	80	struct l2cap_hdr {
8e036fc3 AV	81	__le16 len;
8e036fc3 AV	82	__le16 cid;
1da177e4 LT	83	} __attribute__ ((packed));
	84	#define L2CAP_HDR_SIZE 4
	85
	86	struct l2cap_cmd_hdr {
	87	__u8 code;
	88	__u8 ident;
8e036fc3	89	__le16 len;
1da177e4 LT	90	} __attribute__ ((packed));
	91	#define L2CAP_CMD_HDR_SIZE 4
	92
	93	struct l2cap_cmd_rej {
8e036fc3	94	__le16 reason;
1da177e4 LT	95	} __attribute__ ((packed));
	96
	97	struct l2cap_conn_req {
8e036fc3 AV	98	__le16 psm;
8e036fc3 AV	99	__le16 scid;
1da177e4 LT	100	} __attribute__ ((packed));
	101
	102	struct l2cap_conn_rsp {
8e036fc3 AV	103	__le16 dcid;
	104	__le16 scid;
	105	__le16 result;
	106	__le16 status;
1da177e4 LT	107	} __attribute__ ((packed));
	108
	109	/* connect result */
	110	#define L2CAP_CR_SUCCESS 0x0000
	111	#define L2CAP_CR_PEND 0x0001
	112	#define L2CAP_CR_BAD_PSM 0x0002
	113	#define L2CAP_CR_SEC_BLOCK 0x0003
	114	#define L2CAP_CR_NO_MEM 0x0004
	115
	116	/* connect status */
	117	#define L2CAP_CS_NO_INFO 0x0000
	118	#define L2CAP_CS_AUTHEN_PEND 0x0001
	119	#define L2CAP_CS_AUTHOR_PEND 0x0002
	120
	121	struct l2cap_conf_req {
8e036fc3 AV	122	__le16 dcid;
8e036fc3 AV	123	__le16 flags;
1da177e4 LT	124	__u8 data[0];
	125	} __attribute__ ((packed));
	126
	127	struct l2cap_conf_rsp {
8e036fc3 AV	128	__le16 scid;
	129	__le16 flags;
	130	__le16 result;
1da177e4 LT	131	__u8 data[0];
	132	} __attribute__ ((packed));
	133
5dee9e7c MH	134	#define L2CAP_CONF_SUCCESS 0x0000
	135	#define L2CAP_CONF_UNACCEPT 0x0001
	136	#define L2CAP_CONF_REJECT 0x0002
	137	#define L2CAP_CONF_UNKNOWN 0x0003
1da177e4 LT	138
	139	struct l2cap_conf_opt {
	140	__u8 type;
	141	__u8 len;
	142	__u8 val[0];
	143	} __attribute__ ((packed));
	144	#define L2CAP_CONF_OPT_SIZE 2
	145
	146	#define L2CAP_CONF_MTU 0x01
	147	#define L2CAP_CONF_FLUSH_TO 0x02
	148	#define L2CAP_CONF_QOS 0x03
	149	#define L2CAP_CONF_RFC 0x04
	150
	151	#define L2CAP_CONF_MAX_SIZE 22
	152
6464f35f MH	153	struct l2cap_conf_rfc {
	154	__u8 mode;
	155	__u8 txwin_size;
	156	__u8 max_transmit;
	157	__le16 retrans_timeout;
	158	__le16 monitor_timeout;
	159	__le16 max_pdu_size;
	160	} __attribute__ ((packed));
	161
	162	#define L2CAP_MODE_BASIC 0x00
	163	#define L2CAP_MODE_RETRANS 0x01
	164	#define L2CAP_MODE_FLOWCTL 0x02
	165
1da177e4	166	struct l2cap_disconn_req {
8e036fc3 AV	167	__le16 dcid;
8e036fc3 AV	168	__le16 scid;
1da177e4 LT	169	} __attribute__ ((packed));
	170
	171	struct l2cap_disconn_rsp {
8e036fc3 AV	172	__le16 dcid;
8e036fc3 AV	173	__le16 scid;
1da177e4 LT	174	} __attribute__ ((packed));
	175
	176	struct l2cap_info_req {
8e036fc3	177	__le16 type;
1da177e4 LT	178	} __attribute__ ((packed));
	179
	180	struct l2cap_info_rsp {
8e036fc3 AV	181	__le16 type;
8e036fc3 AV	182	__le16 result;
1da177e4 LT	183	__u8 data[0];
	184	} __attribute__ ((packed));
	185
	186	/* info type */
	187	#define L2CAP_IT_CL_MTU 0x0001
	188	#define L2CAP_IT_FEAT_MASK 0x0002
e1027a7c	189	#define L2CAP_IT_FIXED_CHAN 0x0003
1da177e4 LT	190
	191	/* info result */
	192	#define L2CAP_IR_SUCCESS 0x0000
	193	#define L2CAP_IR_NOTSUPP 0x0001
	194
	195	/* ----- L2CAP connections ----- */
	196	struct l2cap_chan_list {
	197	struct sock *head;
	198	rwlock_t lock;
	199	long num;
	200	};
	201
	202	struct l2cap_conn {
	203	struct hci_conn *hcon;
	204
	205	bdaddr_t *dst;
	206	bdaddr_t *src;
	207
	208	unsigned int mtu;
	209
4e8402a3 MH	210	__u32 feat_mask;
	211
	212	__u8 info_state;
	213	__u8 info_ident;
	214
	215	struct timer_list info_timer;
	216
1da177e4 LT	217	spinlock_t lock;
	218
	219	struct sk_buff *rx_skb;
	220	__u32 rx_len;
	221	__u8 rx_ident;
	222	__u8 tx_ident;
	223
2950f21a MH	224	__u8 disc_reason;
2950f21a MH	225
1da177e4 LT	226	struct l2cap_chan_list chan_list;
	227	};
	228
4e8402a3	229	#define L2CAP_INFO_CL_MTU_REQ_SENT 0x01
984947dc MH	230	#define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04
984947dc MH	231	#define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08
4e8402a3	232
1da177e4 LT	233	/* ----- L2CAP channel and socket info ----- */
	234	#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
	235
	236	struct l2cap_pinfo {
	237	struct bt_sock bt;
8e036fc3	238	__le16 psm;
1da177e4 LT	239	__u16 dcid;
	240	__u16 scid;
	241
	242	__u16 imtu;
	243	__u16 omtu;
	244	__u16 flush_to;
2af6b9d5 MH	245	__u8 sec_level;
	246	__u8 role_switch;
	247	__u8 force_reliable;
1da177e4	248
5dee9e7c MH	249	__u8 conf_req[64];
5dee9e7c MH	250	__u8 conf_len;
1da177e4 LT	251	__u8 conf_state;
1da177e4 LT	252	__u8 conf_retry;
1da177e4 LT	253
	254	__u8 ident;
	255
8e036fc3	256	__le16 sport;
1da177e4 LT	257
	258	struct l2cap_conn *conn;
	259	struct sock *next_c;
	260	struct sock *prev_c;
	261	};
	262
861d6882 MH	263	#define L2CAP_CONF_REQ_SENT 0x01
	264	#define L2CAP_CONF_INPUT_DONE 0x02
	265	#define L2CAP_CONF_OUTPUT_DONE 0x04
6a8d3010	266	#define L2CAP_CONF_CONNECT_PEND 0x80
861d6882 MH	267
861d6882 MH	268	#define L2CAP_CONF_MAX_RETRIES 2
1da177e4 LT	269
	270	void l2cap_load(void);
	271
	272	#endif /* __L2CAP_H */