service/proto/operation_type.proto

syntax = "proto3";

package aae.blemessagestream;

option java_package = "com.android.car.BLEStreamProtos";
option java_outer_classname = "BLEOperationProto";

// The different message types that indicate the content of the payload.
//
// Ensure that these values are positive to reduce incurring too many bytes
// to encode.
enum OperationType {
  // The contents of the payload are unknown.
  //
  // Note, this enum name is prefixed. See
  // go/proto-best-practices-checkers#enum-default-value-name-conflict
  OPERATION_TYPE_UNKNOWN = 0;

  // The payload contains handshake messages needed to set up encryption.
  ENCRYPTION_HANDSHAKE = 2;

  // The message is an acknowledgment of a previously received message. The
  // payload for this type should be empty.
  ACK = 3;

  // The payload contains a client-specific message.
  CLIENT_MESSAGE = 4;
}