nearby/proto/mediums/ble_frames.proto

syntax = "proto2";

package location.nearby.mediums;

option optimize_for = LITE_RUNTIME;
option java_outer_classname = "BleFramesProto";
option java_package = "com.google.location.nearby.mediums.proto";
option objc_class_prefix = "GNCM";

// This should map exactly to BleAdvertisement's socket versions.
// TODO(alexanderkang): Make BleAdvertisement reference this proto.
enum SocketVersion {
  UNKNOWN_SOCKET_VERSION = 0;
  V1 = 1;
  V2 = 2;
}

message SocketControlFrame {
  enum ControlFrameType {
    UNKNOWN_CONTROL_FRAME_TYPE = 0;
    INTRODUCTION = 1;
    DISCONNECTION = 2;
  }

  optional ControlFrameType type = 1;

  // Exactly one of the following fields will be set.
  optional IntroductionFrame introduction = 2;
  optional DisconnectionFrame disconnection = 3;
}

message IntroductionFrame {
  optional bytes service_id_hash = 1;
  optional SocketVersion socket_version = 2;
}

message DisconnectionFrame {
  optional bytes service_id_hash = 1;
}