eip_types.h

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#ifndef ODVA_ETHERNETIP_EIP_TYPES_H
#define ODVA_ETHERNETIP_EIP_TYPES_H

#include <stdint.h>

#define EIP_PROTOCOL_VERSION 1

// EtherNet/IP type defs
typedef bool      EIP_BOOL;   //< 1-bit value
typedef uint8_t   EIP_BYTE;   //< 8-bit string
typedef uint8_t   EIP_USINT;  //< unsigned 8-bit "short" integer
typedef int8_t    EIP_SINT;   //< signed 8-bit "short" integer
typedef uint16_t  EIP_WORD;   //< 16-bit string
typedef uint16_t  EIP_UINT;   //< unsigned 16-bit integer
typedef int16_t   EIP_INT;    //< signed 16-bit integer
typedef uint32_t  EIP_DWORD;  //< 32-bit string
typedef uint32_t  EIP_UDINT;  //< 32-bit unsigned integer
typedef int32_t   EIP_DINT;   //< 32-bit signed integer

typedef enum
{
  EIP_BOOL_CODE  = 0xC1,
  EIP_BYTE_CODE  = 0xD1,
  EIP_USINT_CODE = 0xC6,
  EIP_SINT_CODE  = 0xC2,
  EIP_WORD_CODE  = 0xD2,
  EIP_UINT_CODE  = 0xC7,
  EIP_INT_CODE   = 0xC3,
  EIP_DWORD_CODE = 0xD3,
  EIP_UDINT_CODE = 0xC8,
  EIP_DINT_CODE  = 0xC4,
} EIP_TYPE_CODE;

typedef enum
{
  EIP_CMD_NOP                 = 0x0000,
  EIP_CMD_LIST_SERVICES       = 0x0004,
  EIP_CMD_LIST_IDENTITY       = 0x0063,
  EIP_CMD_LIST_INTERFACES     = 0x0064,
  EIP_CMD_REGISTER_SESSION    = 0x0065,
  EIP_CMD_UNREGISTER_SESSION  = 0x0066,
  EIP_CMD_SEND_RR_DATA        = 0x006F,
  EIP_CMD_SEND_UNIT_DATA      = 0x0070,
  EIP_CMD_INDICATE_STATUS     = 0x0072,
  EIP_CMD_CANCEL              = 0x0073,
} EIP_CMD_T;

typedef enum
{
  EIP_STATUS_SUCCESS          = 0x0000,
  EIP_STATUS_INVALID_CMD      = 0x0001,
  EIP_STATUS_OUT_OF_MEMORY    = 0x0002,
  EIP_STATUS_INVALI_DATA      = 0x0003,
  EIP_STATUS_INVALID_SESSION  = 0x0064,
  EIP_STATUS_INVALID_LENGTH   = 0x0065,
  EIP_STATUS_INVALID_VERSION  = 0x0069,
} EIP_STATUS_T;

typedef enum
{
  EIP_ITEM_NULL                       = 0x0000,
  EIP_ITEM_LIST_IDENTITY_RESPONSE     = 0x000C,
  EIP_ITEM_CONNECTION_BASED           = 0x00A1,
  EIP_ITEM_CONNECTED_TRANSPORT_PACKET = 0x00B1,
  EIP_ITEM_UNCONNECTED_MESSAGE        = 0x00B2,
  EIP_ITEM_LIST_SERVICES_RESPONSE     = 0x0100,
  EIP_ITEM_SOCKADDR_INFO_ORIGINATOR   = 0x8000,
  EIP_ITEM_SOCKADDR_INFO_TARGET       = 0x8001,
  EIP_ITEM_SEQ_ADDRESS                = 0x8002,
} EIP_ITEM_T;

typedef struct
{
  EIP_USINT assembly_id;
  EIP_UINT buffer_size;
  EIP_UDINT rpi;
} EIP_CONNECTION_INFO_T;

#endif  // ODVA_ETHERNETIP_EIP_TYPES_H