[GitHub/mt8127/android_kernel_alcatel_ttab.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_DEFAULT_RX_WINDOW		1
#define L2CAP_DEFAULT_MAX_RECEIVE	1
#define L2CAP_DEFAULT_RETRANS_TO	300    /* 300 milliseconds */
#define L2CAP_DEFAULT_MONITOR_TO	1000   /* 1 second */
#define L2CAP_DEFAULT_MAX_RX_APDU	0xfff7

#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 feature mask */
#define L2CAP_FEAT_FLOWCTL	0x00000001
#define L2CAP_FEAT_RETRANS	0x00000002
#define L2CAP_FEAT_ERTM		0x00000008
#define L2CAP_FEAT_STREAMING	0x00000010
#define L2CAP_FEAT_FCS		0x00000020
#define L2CAP_FEAT_FIXED_CHAN	0x00000080

/* L2CAP checksum option */
#define L2CAP_FCS_NONE		0x00
#define L2CAP_FCS_CRC16		0x01

/* 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));

/* channel indentifier */
#define L2CAP_CID_SIGNALING	0x0001
#define L2CAP_CID_CONN_LESS	0x0002
#define L2CAP_CID_DYN_START	0x0040
#define L2CAP_CID_DYN_END	0xffff

/* 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_HINT		0x80
#define L2CAP_CONF_MASK		0x7f

#define L2CAP_CONF_MTU		0x01
#define L2CAP_CONF_FLUSH_TO	0x02
#define L2CAP_CONF_QOS		0x03
#define L2CAP_CONF_RFC		0x04
#define L2CAP_CONF_FCS		0x05

#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
#define L2CAP_MODE_ERTM		0x03
#define L2CAP_MODE_STREAM	0x04

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 */
47ec1dcd MH	29	#define L2CAP_DEFAULT_MTU 672
	30	#define L2CAP_DEFAULT_FLUSH_TO 0xffff
	31	#define L2CAP_DEFAULT_RX_WINDOW 1
	32	#define L2CAP_DEFAULT_MAX_RECEIVE 1
	33	#define L2CAP_DEFAULT_RETRANS_TO 300 /* 300 milliseconds */
	34	#define L2CAP_DEFAULT_MONITOR_TO 1000 /* 1 second */
	35	#define L2CAP_DEFAULT_MAX_RX_APDU 0xfff7
1da177e4	36
4e8402a3 MH	37	#define L2CAP_CONN_TIMEOUT (40000) /* 40 seconds */
4e8402a3 MH	38	#define L2CAP_INFO_TIMEOUT (4000) /* 4 seconds */
1da177e4 LT	39
	40	/* L2CAP socket address */
	41	struct sockaddr_l2 {
	42	sa_family_t l2_family;
8e036fc3	43	__le16 l2_psm;
1da177e4	44	bdaddr_t l2_bdaddr;
f29972de	45	__le16 l2_cid;
1da177e4 LT	46	};
	47
	48	/* L2CAP socket options */
	49	#define L2CAP_OPTIONS 0x01
	50	struct l2cap_options {
	51	__u16 omtu;
	52	__u16 imtu;
	53	__u16 flush_to;
	54	__u8 mode;
	55	};
	56
	57	#define L2CAP_CONNINFO 0x02
	58	struct l2cap_conninfo {
	59	__u16 hci_handle;
	60	__u8 dev_class[3];
	61	};
	62
	63	#define L2CAP_LM 0x03
	64	#define L2CAP_LM_MASTER 0x0001
	65	#define L2CAP_LM_AUTH 0x0002
	66	#define L2CAP_LM_ENCRYPT 0x0004
	67	#define L2CAP_LM_TRUSTED 0x0008
	68	#define L2CAP_LM_RELIABLE 0x0010
	69	#define L2CAP_LM_SECURE 0x0020
	70
	71	/* L2CAP command codes */
47ec1dcd MH	72	#define L2CAP_COMMAND_REJ 0x01
	73	#define L2CAP_CONN_REQ 0x02
	74	#define L2CAP_CONN_RSP 0x03
	75	#define L2CAP_CONF_REQ 0x04
	76	#define L2CAP_CONF_RSP 0x05
	77	#define L2CAP_DISCONN_REQ 0x06
	78	#define L2CAP_DISCONN_RSP 0x07
	79	#define L2CAP_ECHO_REQ 0x08
	80	#define L2CAP_ECHO_RSP 0x09
	81	#define L2CAP_INFO_REQ 0x0a
	82	#define L2CAP_INFO_RSP 0x0b
	83
	84	/* L2CAP feature mask */
	85	#define L2CAP_FEAT_FLOWCTL 0x00000001
	86	#define L2CAP_FEAT_RETRANS 0x00000002
	87	#define L2CAP_FEAT_ERTM 0x00000008
	88	#define L2CAP_FEAT_STREAMING 0x00000010
	89	#define L2CAP_FEAT_FCS 0x00000020
	90	#define L2CAP_FEAT_FIXED_CHAN 0x00000080
	91
	92	/* L2CAP checksum option */
	93	#define L2CAP_FCS_NONE 0x00
	94	#define L2CAP_FCS_CRC16 0x01
1da177e4 LT	95
	96	/* L2CAP structures */
	97	struct l2cap_hdr {
8e036fc3 AV	98	__le16 len;
8e036fc3 AV	99	__le16 cid;
1da177e4 LT	100	} __attribute__ ((packed));
	101	#define L2CAP_HDR_SIZE 4
	102
	103	struct l2cap_cmd_hdr {
	104	__u8 code;
	105	__u8 ident;
8e036fc3	106	__le16 len;
1da177e4 LT	107	} __attribute__ ((packed));
	108	#define L2CAP_CMD_HDR_SIZE 4
	109
	110	struct l2cap_cmd_rej {
8e036fc3	111	__le16 reason;
1da177e4 LT	112	} __attribute__ ((packed));
	113
	114	struct l2cap_conn_req {
8e036fc3 AV	115	__le16 psm;
8e036fc3 AV	116	__le16 scid;
1da177e4 LT	117	} __attribute__ ((packed));
	118
	119	struct l2cap_conn_rsp {
8e036fc3 AV	120	__le16 dcid;
	121	__le16 scid;
	122	__le16 result;
	123	__le16 status;
1da177e4 LT	124	} __attribute__ ((packed));
1da177e4 LT	125
8db4dc46 GP	126	/* channel indentifier */
	127	#define L2CAP_CID_SIGNALING 0x0001
	128	#define L2CAP_CID_CONN_LESS 0x0002
	129	#define L2CAP_CID_DYN_START 0x0040
	130	#define L2CAP_CID_DYN_END 0xffff
	131
1da177e4	132	/* connect result */
47ec1dcd MH	133	#define L2CAP_CR_SUCCESS 0x0000
	134	#define L2CAP_CR_PEND 0x0001
	135	#define L2CAP_CR_BAD_PSM 0x0002
	136	#define L2CAP_CR_SEC_BLOCK 0x0003
	137	#define L2CAP_CR_NO_MEM 0x0004
1da177e4 LT	138
1da177e4 LT	139	/* connect status */
47ec1dcd MH	140	#define L2CAP_CS_NO_INFO 0x0000
	141	#define L2CAP_CS_AUTHEN_PEND 0x0001
	142	#define L2CAP_CS_AUTHOR_PEND 0x0002
1da177e4 LT	143
1da177e4 LT	144	struct l2cap_conf_req {
8e036fc3 AV	145	__le16 dcid;
8e036fc3 AV	146	__le16 flags;
1da177e4 LT	147	__u8 data[0];
	148	} __attribute__ ((packed));
	149
	150	struct l2cap_conf_rsp {
8e036fc3 AV	151	__le16 scid;
	152	__le16 flags;
	153	__le16 result;
1da177e4 LT	154	__u8 data[0];
	155	} __attribute__ ((packed));
	156
5dee9e7c MH	157	#define L2CAP_CONF_SUCCESS 0x0000
	158	#define L2CAP_CONF_UNACCEPT 0x0001
	159	#define L2CAP_CONF_REJECT 0x0002
	160	#define L2CAP_CONF_UNKNOWN 0x0003
1da177e4 LT	161
	162	struct l2cap_conf_opt {
	163	__u8 type;
	164	__u8 len;
	165	__u8 val[0];
	166	} __attribute__ ((packed));
	167	#define L2CAP_CONF_OPT_SIZE 2
	168
589d2746	169	#define L2CAP_CONF_HINT 0x80
47ec1dcd	170	#define L2CAP_CONF_MASK 0x7f
589d2746	171
1da177e4 LT	172	#define L2CAP_CONF_MTU 0x01
	173	#define L2CAP_CONF_FLUSH_TO 0x02
	174	#define L2CAP_CONF_QOS 0x03
	175	#define L2CAP_CONF_RFC 0x04
47ec1dcd	176	#define L2CAP_CONF_FCS 0x05
1da177e4 LT	177
	178	#define L2CAP_CONF_MAX_SIZE 22
	179
6464f35f MH	180	struct l2cap_conf_rfc {
	181	__u8 mode;
	182	__u8 txwin_size;
	183	__u8 max_transmit;
	184	__le16 retrans_timeout;
	185	__le16 monitor_timeout;
	186	__le16 max_pdu_size;
	187	} __attribute__ ((packed));
	188
	189	#define L2CAP_MODE_BASIC 0x00
	190	#define L2CAP_MODE_RETRANS 0x01
	191	#define L2CAP_MODE_FLOWCTL 0x02
47ec1dcd MH	192	#define L2CAP_MODE_ERTM 0x03
47ec1dcd MH	193	#define L2CAP_MODE_STREAM 0x04
6464f35f	194
1da177e4	195	struct l2cap_disconn_req {
8e036fc3 AV	196	__le16 dcid;
8e036fc3 AV	197	__le16 scid;
1da177e4 LT	198	} __attribute__ ((packed));
	199
	200	struct l2cap_disconn_rsp {
8e036fc3 AV	201	__le16 dcid;
8e036fc3 AV	202	__le16 scid;
1da177e4 LT	203	} __attribute__ ((packed));
	204
	205	struct l2cap_info_req {
8e036fc3	206	__le16 type;
1da177e4 LT	207	} __attribute__ ((packed));
	208
	209	struct l2cap_info_rsp {
8e036fc3 AV	210	__le16 type;
8e036fc3 AV	211	__le16 result;
1da177e4 LT	212	__u8 data[0];
	213	} __attribute__ ((packed));
	214
	215	/* info type */
	216	#define L2CAP_IT_CL_MTU 0x0001
	217	#define L2CAP_IT_FEAT_MASK 0x0002
e1027a7c	218	#define L2CAP_IT_FIXED_CHAN 0x0003
1da177e4 LT	219
	220	/* info result */
	221	#define L2CAP_IR_SUCCESS 0x0000
	222	#define L2CAP_IR_NOTSUPP 0x0001
	223
	224	/* ----- L2CAP connections ----- */
	225	struct l2cap_chan_list {
	226	struct sock *head;
	227	rwlock_t lock;
	228	long num;
	229	};
	230
	231	struct l2cap_conn {
	232	struct hci_conn *hcon;
	233
	234	bdaddr_t *dst;
	235	bdaddr_t *src;
	236
	237	unsigned int mtu;
	238
4e8402a3 MH	239	__u32 feat_mask;
	240
	241	__u8 info_state;
	242	__u8 info_ident;
	243
	244	struct timer_list info_timer;
	245
1da177e4 LT	246	spinlock_t lock;
	247
	248	struct sk_buff *rx_skb;
	249	__u32 rx_len;
	250	__u8 rx_ident;
	251	__u8 tx_ident;
	252
2950f21a MH	253	__u8 disc_reason;
2950f21a MH	254
1da177e4 LT	255	struct l2cap_chan_list chan_list;
	256	};
	257
4e8402a3	258	#define L2CAP_INFO_CL_MTU_REQ_SENT 0x01
984947dc MH	259	#define L2CAP_INFO_FEAT_MASK_REQ_SENT 0x04
984947dc MH	260	#define L2CAP_INFO_FEAT_MASK_REQ_DONE 0x08
4e8402a3	261
1da177e4 LT	262	/* ----- L2CAP channel and socket info ----- */
	263	#define l2cap_pi(sk) ((struct l2cap_pinfo *) sk)
	264
	265	struct l2cap_pinfo {
	266	struct bt_sock bt;
8e036fc3	267	__le16 psm;
1da177e4 LT	268	__u16 dcid;
	269	__u16 scid;
	270
	271	__u16 imtu;
	272	__u16 omtu;
	273	__u16 flush_to;
2af6b9d5 MH	274	__u8 sec_level;
	275	__u8 role_switch;
	276	__u8 force_reliable;
1da177e4	277
5dee9e7c MH	278	__u8 conf_req[64];
5dee9e7c MH	279	__u8 conf_len;
1da177e4 LT	280	__u8 conf_state;
1da177e4 LT	281	__u8 conf_retry;
1da177e4 LT	282
	283	__u8 ident;
	284
8e036fc3	285	__le16 sport;
1da177e4 LT	286
	287	struct l2cap_conn *conn;
	288	struct sock *next_c;
	289	struct sock *prev_c;
	290	};
	291
861d6882 MH	292	#define L2CAP_CONF_REQ_SENT 0x01
	293	#define L2CAP_CONF_INPUT_DONE 0x02
	294	#define L2CAP_CONF_OUTPUT_DONE 0x04
6a8d3010	295	#define L2CAP_CONF_CONNECT_PEND 0x80
861d6882 MH	296
861d6882 MH	297	#define L2CAP_CONF_MAX_RETRIES 2
1da177e4 LT	298
	299	void l2cap_load(void);
	300
	301	#endif /* __L2CAP_H */