syntax = "proto2";

package message_v2.pb;

message HopMessage {
  enum Type {
    RESERVE = 0;
    CONNECT = 1;
    STATUS = 2;
  }

  required Type type = 1;

  optional Peer peer = 2;
  optional Reservation reservation = 3;
  optional Limit limit = 4;

  optional Status status = 5;
}

message StopMessage {
  enum Type {
    CONNECT = 0;
    STATUS = 1;
  }

  required Type type = 1;

  optional Peer peer = 2;
  optional Limit limit = 3;

  optional Status status = 4;
}

message Peer {
  required bytes id = 1;
  repeated bytes addrs = 2;
}

message Reservation {
  required uint64 expire = 1; // Unix expiration time (UTC)
  repeated bytes addrs = 2;   // relay addrs for reserving peer
  optional bytes voucher = 3; // reservation voucher
}
message Limit {
  optional uint32 duration = 1; // seconds
  optional uint64 data = 2;     // bytes
}

enum Status {
  OK                      = 100;
  RESERVATION_REFUSED     = 200;
  RESOURCE_LIMIT_EXCEEDED = 201;
  PERMISSION_DENIED       = 202;
  CONNECTION_FAILED       = 203;
  NO_RESERVATION          = 204;
  MALFORMED_MESSAGE       = 400;
  UNEXPECTED_MESSAGE      = 401;
}