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/*
*
* BlueZ - Bluetooth protocol stack for Linux
*
* Copyright (C) 2014 Google Inc.
*
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*/
#include <stdint.h>
#ifndef __packed
#define __packed __attribute__((packed))
#endif
#define BT_ATT_DEFAULT_LE_MTU 23
#define BT_ATT_MAX_LE_MTU 517
#define BT_ATT_MAX_VALUE_LEN 512
/* ATT protocol opcodes */
#define BT_ATT_OP_ERROR_RSP 0x01
#define BT_ATT_OP_MTU_REQ 0x02
#define BT_ATT_OP_MTU_RSP 0x03
#define BT_ATT_OP_FIND_INFO_REQ 0x04
#define BT_ATT_OP_FIND_INFO_RSP 0x05
#define BT_ATT_OP_FIND_BY_TYPE_VAL_REQ 0x06
#define BT_ATT_OP_FIND_BY_TYPE_VAL_RSP 0x07
#define BT_ATT_OP_READ_BY_TYPE_REQ 0x08
#define BT_ATT_OP_READ_BY_TYPE_RSP 0x09
#define BT_ATT_OP_READ_REQ 0x0a
#define BT_ATT_OP_READ_RSP 0x0b
#define BT_ATT_OP_READ_BLOB_REQ 0x0c
#define BT_ATT_OP_READ_BLOB_RSP 0x0d
#define BT_ATT_OP_READ_MULT_REQ 0x0e
#define BT_ATT_OP_READ_MULT_RSP 0x0f
#define BT_ATT_OP_READ_BY_GRP_TYPE_REQ 0x10
#define BT_ATT_OP_READ_BY_GRP_TYPE_RSP 0x11
#define BT_ATT_OP_WRITE_REQ 0x12
#define BT_ATT_OP_WRITE_RSP 0x13
#define BT_ATT_OP_WRITE_CMD 0x52
#define BT_ATT_OP_SIGNED_WRITE_CMD 0xD2
#define BT_ATT_OP_PREP_WRITE_REQ 0x16
#define BT_ATT_OP_PREP_WRITE_RSP 0x17
#define BT_ATT_OP_EXEC_WRITE_REQ 0x18
#define BT_ATT_OP_EXEC_WRITE_RSP 0x19
#define BT_ATT_OP_HANDLE_VAL_NOT 0x1B
#define BT_ATT_OP_HANDLE_VAL_IND 0x1D
#define BT_ATT_OP_HANDLE_VAL_CONF 0x1E
/* Packed struct definitions for ATT protocol PDUs */
/* TODO: Complete these definitions for all opcodes */
struct bt_att_pdu_error_rsp {
uint8_t opcode;
uint16_t handle;
uint8_t ecode;
} __packed;
/* Special opcode to receive all requests (legacy servers) */
#define BT_ATT_ALL_REQUESTS 0x00
/* Error codes for Error response PDU */
#define BT_ATT_ERROR_INVALID_HANDLE 0x01
#define BT_ATT_ERROR_READ_NOT_PERMITTED 0x02
#define BT_ATT_ERROR_WRITE_NOT_PERMITTED 0x03
#define BT_ATT_ERROR_INVALID_PDU 0x04
#define BT_ATT_ERROR_AUTHENTICATION 0x05
#define BT_ATT_ERROR_REQUEST_NOT_SUPPORTED 0x06
#define BT_ATT_ERROR_INVALID_OFFSET 0x07
#define BT_ATT_ERROR_AUTHORIZATION 0x08
#define BT_ATT_ERROR_PREPARE_QUEUE_FULL 0x09
#define BT_ATT_ERROR_ATTRIBUTE_NOT_FOUND 0x0A
#define BT_ATT_ERROR_ATTRIBUTE_NOT_LONG 0x0B
#define BT_ATT_ERROR_INSUFFICIENT_ENCRYPTION_KEY_SIZE 0x0C
#define BT_ATT_ERROR_INVALID_ATTRIBUTE_VALUE_LEN 0x0D
#define BT_ATT_ERROR_UNLIKELY 0x0E
#define BT_ATT_ERROR_INSUFFICIENT_ENCRYPTION 0x0F
#define BT_ATT_ERROR_UNSUPPORTED_GROUP_TYPE 0x10
#define BT_ATT_ERROR_INSUFFICIENT_RESOURCES 0x11
/*
* ATT attribute permission bitfield values. Permissions are grouped as
* "Access", "Encryption", "Authentication", and "Authorization". A bitmask of
* permissions is a byte that encodes a combination of these.
*/
#define BT_ATT_PERM_READ 0x01
#define BT_ATT_PERM_WRITE 0x02
#define BT_ATT_PERM_ENCRYPT 0x04
#define BT_ATT_PERM_AUTHEN 0x08
#define BT_ATT_PERM_AUTHOR 0x10
#define BT_ATT_PERM_NONE 0x20
/* GATT Characteristic Properties Bitfield values */
#define BT_GATT_CHRC_PROP_BROADCAST 0x01
#define BT_GATT_CHRC_PROP_READ 0x02
#define BT_GATT_CHRC_PROP_WRITE_WITHOUT_RESP 0x04
#define BT_GATT_CHRC_PROP_WRITE 0x08
#define BT_GATT_CHRC_PROP_NOTIFY 0x10
#define BT_GATT_CHRC_PROP_INDICATE 0x20
#define BT_GATT_CHRC_PROP_AUTH 0x40
#define BT_GATT_CHRC_PROP_EXT_PROP 0x80
/* GATT Characteristic Extended Properties Bitfield values */
#define BT_GATT_CHRC_EXT_PROP_RELIABLE_WRITE 0x01
#define BT_GATT_CHRC_EXT_PROP_WRITABLE_AUX 0x02
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