452 lines
11 KiB
C
452 lines
11 KiB
C
/****************************************************************************
|
|
* wireless/bluetooth/bt_att.h
|
|
* Attribute protocol handling.
|
|
*
|
|
* Copyright (C) 2018 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Ported from the Intel/Zephyr arduino101_firmware_source-v1.tar package
|
|
* where the code was released with a compatible 3-clause BSD license:
|
|
*
|
|
* Copyright (c) 2016, Intel Corporation
|
|
* All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright notice,
|
|
* this list of conditions and the following disclaimer in the documentation
|
|
* and/or other materials provided with the distribution.
|
|
*
|
|
* 3. Neither the name of the copyright holder nor the names of its
|
|
* contributors may be used to endorse or promote products derived from this
|
|
* software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __WIRELESS_BLUETOOTH_BT_ATTR_H
|
|
#define __WIRELESS_BLUETOOTH_BT_ATTR_H 1
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
#define BT_ATT_DEFAULT_LE_MTU 23
|
|
#define BT_ATT_MAX_LE_MTU 517
|
|
|
|
/* Error codes for Error response PDU */
|
|
|
|
#define BT_ATT_ERR_INVALID_HANDLE 0x01
|
|
#define BT_ATT_ERR_READ_NOT_PERMITTED 0x02
|
|
#define BT_ATT_ERR_WRITE_NOT_PERMITTED 0x03
|
|
#define BT_ATT_ERR_INVALID_PDU 0x04
|
|
#define BT_ATT_ERR_AUTHENTICATION 0x05
|
|
#define BT_ATT_ERR_NOT_SUPPORTED 0x06
|
|
#define BT_ATT_ERR_INVALID_OFFSET 0x07
|
|
#define BT_ATT_ERR_AUTHORIZATION 0x08
|
|
#define BT_ATT_ERR_PREPARE_QUEUE_FULL 0x09
|
|
#define BT_ATT_ERR_ATTRIBUTE_NOT_FOUND 0x0a
|
|
#define BT_ATT_ERR_ATTRIBUTE_NOT_LONG 0x0b
|
|
#define BT_ATT_ERR_ENCRYPTION_KEY_SIZE 0x0c
|
|
#define BT_ATT_ERR_INVALID_ATTRIBUTE_LEN 0x0d
|
|
#define BT_ATT_ERR_UNLIKELY 0x0e
|
|
#define BT_ATT_ERR_INSUFFICIENT_ENCRYPTION 0x0f
|
|
#define BT_ATT_ERR_UNSUPPORTED_GROUP_TYPE 0x10
|
|
#define BT_ATT_ERR_INSUFFICIENT_RESOURCES 0x11
|
|
|
|
#define BT_ATT_OP_ERROR_RSP 0x01
|
|
#define BT_ATT_OP_MTU_REQ 0x02
|
|
#define BT_ATT_OP_MTU_RSP 0x03
|
|
|
|
/* Find Information Request */
|
|
|
|
#define BT_ATT_OP_FIND_INFO_REQ 0x04
|
|
|
|
/* Find Information Response */
|
|
|
|
#define BT_ATT_INFO_16 0x01
|
|
#define BT_ATT_INFO_128 0x02
|
|
#define BT_ATT_OP_FIND_INFO_RSP 0x05
|
|
|
|
/* Find By Type Value Request */
|
|
|
|
#define BT_ATT_OP_FIND_TYPE_REQ 0x06
|
|
|
|
/* Find By Type Value Response */
|
|
|
|
#define BT_ATT_OP_FIND_TYPE_RSP 0x07
|
|
|
|
/* Read By Type Request */
|
|
|
|
#define BT_ATT_OP_READ_TYPE_REQ 0x08
|
|
|
|
/* Read By Type Response */
|
|
|
|
#define BT_ATT_OP_READ_TYPE_RSP 0x09
|
|
|
|
/* Read Request */
|
|
|
|
#define BT_ATT_OP_READ_REQ 0x0a
|
|
|
|
/* Read Response */
|
|
|
|
#define BT_ATT_OP_READ_RSP 0x0b
|
|
|
|
/* Read Blob Request */
|
|
|
|
#define BT_ATT_OP_READ_BLOB_REQ 0x0c
|
|
|
|
/* Read Blob Response */
|
|
|
|
#define BT_ATT_OP_READ_BLOB_RSP 0x0d
|
|
|
|
/* Read Multiple Request */
|
|
|
|
#define BT_ATT_READ_MULT_MIN_LEN_REQ 0x04
|
|
#define BT_ATT_OP_READ_MULT_REQ 0x0e
|
|
|
|
/* Read Multiple Response */
|
|
|
|
#define BT_ATT_OP_READ_MULT_RSP 0x0f
|
|
|
|
/* Read by Group Type Request */
|
|
|
|
#define BT_ATT_OP_READ_GROUP_REQ 0x10
|
|
|
|
/* Read by Group Type Response */
|
|
|
|
#define BT_ATT_OP_READ_GROUP_RSP 0x11
|
|
|
|
/* Write Request */
|
|
|
|
#define BT_ATT_OP_WRITE_REQ 0x12
|
|
|
|
/* Write Response */
|
|
|
|
#define BT_ATT_OP_WRITE_RSP 0x13
|
|
|
|
/* Prepare Write Request */
|
|
|
|
#define BT_ATT_OP_PREPARE_WRITE_REQ 0x16
|
|
|
|
/* Prepare Write Respond */
|
|
|
|
#define BT_ATT_OP_PREPARE_WRITE_RSP 0x17
|
|
|
|
/* Execute Write Request */
|
|
|
|
#define BT_ATT_FLAG_CANCEL 0x00
|
|
#define BT_ATT_FLAG_EXEC 0x01
|
|
#define BT_ATT_OP_EXEC_WRITE_REQ 0x18
|
|
|
|
/* Execute Write Response */
|
|
|
|
#define BT_ATT_OP_EXEC_WRITE_RSP 0x19
|
|
|
|
/* Handle Value Notification */
|
|
|
|
#define BT_ATT_OP_NOTIFY 0x1b
|
|
|
|
/* Handle Value Indication */
|
|
|
|
#define BT_ATT_OP_INDICATE 0x1d
|
|
|
|
/* Handle Value Confirm */
|
|
|
|
#define BT_ATT_OP_CONFIRM 0x1f
|
|
|
|
/* Write Command */
|
|
|
|
#define BT_ATT_OP_WRITE_CMD 0x52
|
|
|
|
/* Signed Write Command */
|
|
|
|
#define BT_ATT_OP_SIGNED_WRITE_CMD 0xd2
|
|
|
|
/****************************************************************************
|
|
* Public Types
|
|
****************************************************************************/
|
|
|
|
begin_packed_struct struct bt_att_hdr_s
|
|
{
|
|
uint8_t code;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct bt_att_error_rsp_s
|
|
{
|
|
uint8_t request;
|
|
uint16_t handle;
|
|
uint8_t error;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct bt_att_exchange_mtu_req_s
|
|
{
|
|
uint16_t mtu;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct bt_att_exchange_mtu_rsp_s
|
|
{
|
|
uint16_t mtu;
|
|
} end_packed_struct;
|
|
|
|
/* Find Information Request */
|
|
|
|
begin_packed_struct struct bt_att_find_info_req_s
|
|
{
|
|
uint16_t start_handle;
|
|
uint16_t end_handle;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct bt_att_info_16_s
|
|
{
|
|
uint16_t handle;
|
|
uint16_t uuid;
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct bt_att_info_128_s
|
|
{
|
|
uint16_t handle;
|
|
uint8_t uuid[16];
|
|
} end_packed_struct;
|
|
|
|
/* Find Information Response */
|
|
|
|
begin_packed_struct struct bt_att_find_info_rsp_s
|
|
{
|
|
uint8_t format;
|
|
uint8_t info[0];
|
|
} end_packed_struct;
|
|
|
|
/* Find By Type Value Request */
|
|
|
|
begin_packed_struct struct bt_att_find_type_req_s
|
|
{
|
|
uint16_t start_handle;
|
|
uint16_t end_handle;
|
|
uint16_t type;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct bt_att_handle_group_s
|
|
{
|
|
uint16_t start_handle;
|
|
uint16_t end_handle;
|
|
} end_packed_struct;
|
|
|
|
/* Find By Type Value Response */
|
|
|
|
begin_packed_struct struct bt_att_find_type_rsp_s
|
|
{
|
|
struct bt_att_handle_group_s list[0];
|
|
} end_packed_struct;
|
|
|
|
/* Read By Type Request */
|
|
|
|
begin_packed_struct struct bt_att_read_type_req_s
|
|
{
|
|
uint16_t start_handle;
|
|
uint16_t end_handle;
|
|
uint8_t uuid[0];
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct bt_att_data_s
|
|
{
|
|
uint16_t handle;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Read By Type Response */
|
|
|
|
begin_packed_struct struct bt_att_read_type_rsp_s
|
|
{
|
|
uint8_t len;
|
|
struct bt_att_data_s data[0];
|
|
} end_packed_struct;
|
|
|
|
/* Read Request */
|
|
|
|
begin_packed_struct struct bt_att_read_req_s
|
|
{
|
|
uint16_t handle;
|
|
} end_packed_struct;
|
|
|
|
/* Read Response */
|
|
|
|
begin_packed_struct struct bt_att_read_rsp_s
|
|
{
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Read Blob Request */
|
|
|
|
begin_packed_struct struct bt_att_read_blob_req_s
|
|
{
|
|
uint16_t handle;
|
|
uint16_t offset;
|
|
} end_packed_struct;
|
|
|
|
/* Read Blob Response */
|
|
|
|
begin_packed_struct struct bt_att_read_blob_rsp_s
|
|
{
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Read Multiple Request */
|
|
|
|
begin_packed_struct struct bt_att_read_mult_req_s
|
|
{
|
|
uint16_t handles[0];
|
|
} end_packed_struct;
|
|
|
|
/* Read Multiple Response */
|
|
|
|
begin_packed_struct struct bt_att_read_mult_rsp_s
|
|
{
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Read by Group Type Request */
|
|
|
|
struct bt_att_read_group_req_s
|
|
{
|
|
uint16_t start_handle;
|
|
uint16_t end_handle;
|
|
uint8_t uuid[0];
|
|
} end_packed_struct;
|
|
|
|
begin_packed_struct struct bt_att_group_data_s
|
|
{
|
|
uint16_t start_handle;
|
|
uint16_t end_handle;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Read by Group Type Response */
|
|
|
|
begin_packed_struct struct bt_att_read_group_rsp_s
|
|
{
|
|
uint8_t len;
|
|
struct bt_att_group_data_s data[0];
|
|
} end_packed_struct;
|
|
|
|
/* Write Request */
|
|
|
|
begin_packed_struct struct bt_att_write_req_s
|
|
{
|
|
uint16_t handle;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Write Response */
|
|
|
|
/* Prepare Write Request */
|
|
|
|
begin_packed_struct struct bt_att_prepare_write_req_s
|
|
{
|
|
uint16_t handle;
|
|
uint16_t offset;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Prepare Write Response */
|
|
|
|
begin_packed_struct struct bt_att_prepare_write_rsp_s
|
|
{
|
|
uint16_t handle;
|
|
uint16_t offset;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Execute Write Request */
|
|
|
|
begin_packed_struct struct bt_att_exec_write_req_s
|
|
{
|
|
uint8_t flags;
|
|
} end_packed_struct;
|
|
|
|
/* Execute Write Response */
|
|
|
|
/* Handle Value Notification */
|
|
|
|
begin_packed_struct struct bt_att_notify_s
|
|
{
|
|
uint16_t handle;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Handle Value Indication */
|
|
|
|
begin_packed_struct struct bt_att_indicate_s
|
|
{
|
|
uint16_t handle;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Handle Value Confirm */
|
|
|
|
begin_packed_struct struct bt_att_signature_s
|
|
{
|
|
uint8_t value[12];
|
|
} end_packed_struct;
|
|
|
|
/* Write Command */
|
|
|
|
begin_packed_struct struct bt_att_write_cmd_s
|
|
{
|
|
uint16_t handle;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
/* Signed Write Command */
|
|
|
|
begin_packed_struct struct bt_att_signed_write_cmd_s
|
|
{
|
|
uint16_t handle;
|
|
uint8_t value[0];
|
|
} end_packed_struct;
|
|
|
|
typedef void (*bt_att_func_t)(FAR struct bt_conn_s *conn, uint8_t err,
|
|
FAR const void *pdu, uint16_t length,
|
|
FAR void *user_data);
|
|
typedef void (*bt_att_destroy_t)(FAR void *user_data);
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
void bt_att_initialize(void);
|
|
struct bt_buf_s *bt_att_create_pdu(FAR struct bt_conn_s *conn, uint8_t op,
|
|
size_t len);
|
|
|
|
/* Send ATT PDU over a connection */
|
|
|
|
int bt_att_send(FAR struct bt_conn_s *conn, FAR struct bt_buf_s *buf,
|
|
bt_att_func_t func, FAR void *user_data,
|
|
bt_att_destroy_t destroy);
|
|
|
|
/* Cancel ATT request */
|
|
|
|
void bt_att_cancel(FAR struct bt_conn_s *conn);
|
|
|
|
#endif /* __WIRELESS_BLUETOOTH_BT_ATTR_H */
|