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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2000-2001 Qualcomm Incorporated
* Copyright (C) 2002-2003 Maxim Krasnyansky <maxk@qualcomm.com>
* Copyright (C) 2002-2010 Marcel Holtmann <marcel@holtmann.org>
*
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#ifndef __L2CAP_H
#define __L2CAP_H
#ifdef __cplusplus
extern "C" {
#endif
#include <sys/socket.h>
/* L2CAP defaults */
#define L2CAP_DEFAULT_MTU 672
#define L2CAP_DEFAULT_FLUSH_TO 0xFFFF
/* L2CAP socket address */
struct sockaddr_l2 {
sa_family_t l2_family;
unsigned short l2_psm;
bdaddr_t l2_bdaddr;
unsigned short l2_cid;
};
/* L2CAP socket options */
#define L2CAP_OPTIONS 0x01
struct l2cap_options {
uint16_t omtu;
uint16_t imtu;
uint16_t flush_to;
uint8_t mode;
uint8_t fcs;
uint8_t max_tx;
uint16_t txwin_size;
};
#define L2CAP_CONNINFO 0x02
struct l2cap_conninfo {
uint16_t hci_handle;
uint8_t 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 */
typedef struct {
uint16_t len;
uint16_t cid;
} __attribute__ ((packed)) l2cap_hdr;
#define L2CAP_HDR_SIZE 4
typedef struct {
uint8_t code;
uint8_t ident;
uint16_t len;
} __attribute__ ((packed)) l2cap_cmd_hdr;
#define L2CAP_CMD_HDR_SIZE 4
typedef struct {
uint16_t reason;
} __attribute__ ((packed)) l2cap_cmd_rej;
#define L2CAP_CMD_REJ_SIZE 2
typedef struct {
uint16_t psm;
uint16_t scid;
} __attribute__ ((packed)) l2cap_conn_req;
#define L2CAP_CONN_REQ_SIZE 4
typedef struct {
uint16_t dcid;
uint16_t scid;
uint16_t result;
uint16_t status;
} __attribute__ ((packed)) l2cap_conn_rsp;
#define L2CAP_CONN_RSP_SIZE 8
/* 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
typedef struct {
uint16_t dcid;
uint16_t flags;
uint8_t data[0];
} __attribute__ ((packed)) l2cap_conf_req;
#define L2CAP_CONF_REQ_SIZE 4
typedef struct {
uint16_t scid;
uint16_t flags;
uint16_t result;
uint8_t data[0];
} __attribute__ ((packed)) l2cap_conf_rsp;
#define L2CAP_CONF_RSP_SIZE 6
#define L2CAP_CONF_SUCCESS 0x0000
#define L2CAP_CONF_UNACCEPT 0x0001
#define L2CAP_CONF_REJECT 0x0002
#define L2CAP_CONF_UNKNOWN 0x0003
typedef struct {
uint8_t type;
uint8_t len;
uint8_t val[0];
} __attribute__ ((packed)) l2cap_conf_opt;
#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_FCS 0x05
#define L2CAP_CONF_MAX_SIZE 22
#define L2CAP_MODE_BASIC 0x00
#define L2CAP_MODE_RETRANS 0x01
#define L2CAP_MODE_FLOWCTL 0x02
#define L2CAP_MODE_ERTM 0x03
#define L2CAP_MODE_STREAMING 0x04
typedef struct {
uint16_t dcid;
uint16_t scid;
} __attribute__ ((packed)) l2cap_disconn_req;
#define L2CAP_DISCONN_REQ_SIZE 4
typedef struct {
uint16_t dcid;
uint16_t scid;
} __attribute__ ((packed)) l2cap_disconn_rsp;
#define L2CAP_DISCONN_RSP_SIZE 4
typedef struct {
uint16_t type;
} __attribute__ ((packed)) l2cap_info_req;
#define L2CAP_INFO_REQ_SIZE 2
typedef struct {
uint16_t type;
uint16_t result;
uint8_t data[0];
} __attribute__ ((packed)) l2cap_info_rsp;
#define L2CAP_INFO_RSP_SIZE 4
/* info type */
#define L2CAP_IT_CL_MTU 0x0001
#define L2CAP_IT_FEAT_MASK 0x0002
/* info result */
#define L2CAP_IR_SUCCESS 0x0000
#define L2CAP_IR_NOTSUPP 0x0001
#ifdef __cplusplus
}
#endif
#endif /* __L2CAP_H */
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