syntax = "proto3";

package ethereum.beacon.p2p.v1;

import "github.com/gogo/protobuf/gogoproto/gogo.proto";

message Hello {
  bytes fork_version = 1 [(gogoproto.moretags) = "ssz-size:\"4\""];
  bytes finalized_root = 2 [(gogoproto.moretags) = "ssz-size:\"32\""];
  uint64 finalized_epoch = 3;
  bytes head_root = 4 [(gogoproto.moretags) = "ssz-size:\"32\""];
  uint64 head_slot = 5;
}

message Goodbye {
  Reason reason = 1;

  enum Reason {
    UNKNOWN = 0;
    CLIENT_SHUTDOWN = 1;
    IRRELEVANT_NETWORK = 2;
    GENERIC_ERROR = 3;

    reserved 4 to 127;
  }
}

message BeaconBlocksRequest {
  bytes head_block_root = 1 [(gogoproto.moretags) = "ssz-size:\"32\""];
  uint64 head_slot = 2;
  uint64 count = 3;
  uint64 step = 4;
}

message ErrorMessage {
  string error_message = 1;
}