ble_att.h

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#ifndef BLE_ATT_H_
#define BLE_ATT_H_
 
#include <stdbool.h>
#include <stdint.h>
 
#define ATT_UUID_LENGTH (16)
 
typedef enum {
        ATT_PERM_NONE           = 0,
        ATT_PERM_READ           = 0x01,
        ATT_PERM_WRITE          = 0x02,
        ATT_PERM_READ_AUTH      = 0x04,
        ATT_PERM_WRITE_AUTH     = 0x08,
        ATT_PERM_READ_ENCRYPT   = 0x10,
        ATT_PERM_WRITE_ENCRYPT  = 0x20,
        ATT_PERM_KEYSIZE_16     = 0x80,
        // useful combinations
        ATT_PERM_RW             = ATT_PERM_READ | ATT_PERM_WRITE,
        ATT_PERM_RW_AUTH        = ATT_PERM_READ_AUTH | ATT_PERM_WRITE_AUTH,
        ATT_PERM_RW_ENCRYPT     = ATT_PERM_READ_ENCRYPT | ATT_PERM_WRITE_ENCRYPT,
} att_perm_t;
 
typedef enum {
        ATT_ERROR_OK                                    = 0x00,
        ATT_ERROR_INVALID_HANDLE                        = 0x01,
        ATT_ERROR_READ_NOT_PERMITTED                    = 0x02,
        ATT_ERROR_WRITE_NOT_PERMITTED                   = 0x03,
        ATT_ERROR_INVALID_PDU                           = 0x04,
        ATT_ERROR_INSUFFICIENT_AUTHENTICATION           = 0x05,
        ATT_ERROR_REQUEST_NOT_SUPPORTED                 = 0x06,
        ATT_ERROR_INVALID_OFFSET                        = 0x07,
        ATT_ERROR_INSUFFICIENT_AUTHORIZATION            = 0x08,
        ATT_ERROR_PREPARE_QUEUE_FULL                    = 0x09,
        ATT_ERROR_ATTRIBUTE_NOT_FOUND                   = 0x0A,
        ATT_ERROR_ATTRIBUTE_NOT_LONG                    = 0x0B,
        ATT_ERROR_INSUFFICIENT_KEY_SIZE                 = 0x0C,
        ATT_ERROR_INVALID_VALUE_LENGTH                  = 0x0D,
        ATT_ERROR_UNLIKELY                              = 0x0E,
        ATT_ERROR_INSUFFICIENT_ENCRYPTION               = 0x0F,
        ATT_ERROR_UNSUPPORTED_GROUP_TYPE                = 0x10,
        ATT_ERROR_INSUFFICIENT_RESOURCES                = 0x11,
        ATT_ERROR_APPLICATION_ERROR                     = 0x80,
        ATT_ERROR_CCC_DESCRIPTOR_IMPROPERLY_CONFIGURED  = 0xFD,
        ATT_ERROR_PROCEDURE_ALREADY_IN_PROGRESS         = 0xFE,
} att_error_t;
 
typedef enum {
        ATT_UUID_16,
        ATT_UUID_128
} att_uuid_type_t;
 
typedef struct {
        att_uuid_type_t type;
        union {
                uint16_t uuid16;
                uint8_t  uuid128[ATT_UUID_LENGTH];
        };
} att_uuid_t;
 
#endif /* BLE_ATT_H_ */