att.h File Reference

Attribute Protocol handling. More...

#include <zephyr/sys/slist.h>
#include <zephyr/bluetooth/conn.h>

Go to the source code of this file.

Macros
#define	BT_ATT_ERR_SUCCESS   0x00
	The ATT operation was successful.
#define	BT_ATT_ERR_INVALID_HANDLE   0x01
	The attribute handle given was not valid on the server.
#define	BT_ATT_ERR_READ_NOT_PERMITTED   0x02
	The attribute cannot be read.
#define	BT_ATT_ERR_WRITE_NOT_PERMITTED   0x03
	The attribute cannot be written.
#define	BT_ATT_ERR_INVALID_PDU   0x04
	The attribute PDU was invalid.
#define	BT_ATT_ERR_AUTHENTICATION   0x05
	The attribute requires authentication before it can be read or written.
#define	BT_ATT_ERR_NOT_SUPPORTED   0x06
	The ATT Server does not support the request received from the client.
#define	BT_ATT_ERR_INVALID_OFFSET   0x07
	Offset specified was past the end of the attribute.
#define	BT_ATT_ERR_AUTHORIZATION   0x08
	The attribute requires authorization before it can be read or written.
#define	BT_ATT_ERR_PREPARE_QUEUE_FULL   0x09
	Too many prepare writes have been queued.
#define	BT_ATT_ERR_ATTRIBUTE_NOT_FOUND   0x0a
	No attribute found within the given attribute handle range.
#define	BT_ATT_ERR_ATTRIBUTE_NOT_LONG   0x0b
	The attribute cannot be read using the ATT_READ_BLOB_REQ PDU.
#define	BT_ATT_ERR_ENCRYPTION_KEY_SIZE   0x0c
	The Encryption Key Size used for encrypting this link is too short.
#define	BT_ATT_ERR_INVALID_ATTRIBUTE_LEN   0x0d
	The attribute value length is invalid for the operation.
#define	BT_ATT_ERR_UNLIKELY   0x0e
	The attribute request that was requested has encountered an error that was unlikely.
#define	BT_ATT_ERR_INSUFFICIENT_ENCRYPTION   0x0f
	The attribute requires encryption before it can be read or written.
#define	BT_ATT_ERR_UNSUPPORTED_GROUP_TYPE   0x10
	The attribute type is not a supported grouping attribute.
#define	BT_ATT_ERR_INSUFFICIENT_RESOURCES   0x11
	Insufficient Resources to complete the request.
#define	BT_ATT_ERR_DB_OUT_OF_SYNC   0x12
	The server requests the client to rediscover the database.
#define	BT_ATT_ERR_VALUE_NOT_ALLOWED   0x13
	The attribute parameter value was not allowed.
#define	BT_ATT_ERR_WRITE_REQ_REJECTED   0xfc
	Write Request Rejected.
#define	BT_ATT_ERR_CCC_IMPROPER_CONF   0xfd
	Client Characteristic Configuration Descriptor Improperly Configured.
#define	BT_ATT_ERR_PROCEDURE_IN_PROGRESS   0xfe
	Procedure Already in Progress.
#define	BT_ATT_ERR_OUT_OF_RANGE   0xff
	Out of Range.
#define	BT_ATT_MAX_ATTRIBUTE_LEN   512
#define	BT_ATT_FIRST_ATTRIBUTE_HANDLE   0x0001
#define	BT_ATT_LAST_ATTRIBUTE_HANDLE   0xffff

Enumerations
enum	bt_att_chan_opt { BT_ATT_CHAN_OPT_NONE = 0x0 , BT_ATT_CHAN_OPT_UNENHANCED_ONLY = BIT(0) , BT_ATT_CHAN_OPT_ENHANCED_ONLY = BIT(1) }
	ATT channel option bit field values. More...

Functions
static const char *	bt_att_err_to_str (uint8_t att_err)
	Converts a ATT error to string.
int	bt_eatt_connect (struct bt_conn *conn, size_t num_channels)
	Connect Enhanced ATT channels.
size_t	bt_eatt_count (struct bt_conn *conn)
	Get number of EATT channels connected.

Detailed Description

Attribute Protocol handling.