HopMessage {.proto3.} = object
  msgType* {.fieldNumber: 1, ext.}: Opt[HopMessageType]
  peer* {.fieldNumber: 2.}: Opt[Peer]
  reservation* {.fieldNumber: 3.}: Opt[Reservation]
  limit* {.fieldNumber: 4.}: Opt[Limit]
  status* {.fieldNumber: 5, ext.}: Opt[StatusV2]

HopMessageType {.pure.} = enum
  Reserve = 0, Connect = 1, Status = 2

Limit {.proto3.} = object
  duration* {.fieldNumber: 1, pint.}: uint32
  data* {.fieldNumber: 2, pint.}: uint64

Peer {.proto3.} = object
  peerId* {.fieldNumber: 1, ext.}: Opt[PeerId]
  addrs* {.fieldNumber: 2, ext.}: seq[MultiAddress]

RelayMessage {.proto2.} = object
  msgType* {.fieldNumber: 1, ext.}: Opt[RelayType]
  srcPeer* {.fieldNumber: 2.}: Opt[RelayPeer]
  dstPeer* {.fieldNumber: 3.}: Opt[RelayPeer]
  status* {.fieldNumber: 4, ext.}: Opt[StatusV1]

RelayPeer {.proto2.} = object
  peerId* {.fieldNumber: 1, required, ext.}: PeerId
  addrs* {.fieldNumber: 2, ext.}: seq[MultiAddress]

RelayType {.pure.} = enum
  Hop = 1, Stop = 2, Status = 3, CanHop = 4

Reservation {.proto3.} = object
  expire* {.fieldNumber: 1, pint.}: Opt[uint64]
  addrs* {.fieldNumber: 2, ext.}: seq[MultiAddress]
  svoucher* {.fieldNumber: 3.}: Opt[seq[byte]]

SignedVoucher = SignedPayload[Voucher]

StatusV1 {.pure.} = enum
  Success = 100, HopSrcAddrTooLong = 220, HopDstAddrTooLong = 221,
  HopSrcMultiaddrInvalid = 250, HopDstMultiaddrInvalid = 251,
  HopNoConnToDst = 260, HopCantDialDst = 261, HopCantOpenDstStream = 262,
  HopCantSpeakRelay = 270, HopCantRelayToSelf = 280, StopSrcAddrTooLong = 320,
  StopDstAddrTooLong = 321, StopSrcMultiaddrInvalid = 350,
  StopDstMultiaddrInvalid = 351, StopRelayRefused = 390, MalformedMessage = 400

StatusV2 = enum
  Unused = 0, Ok = 100, ReservationRefused = 200, ResourceLimitExceeded = 201,
  PermissionDenied = 202, ConnectionFailed = 203, NoReservation = 204,
  MalformedMessage = 400, UnexpectedMessage = 401

StopMessage {.proto3.} = object
  msgType* {.fieldNumber: 1, ext.}: Opt[StopMessageType]
  peer* {.fieldNumber: 2.}: Opt[Peer]
  limit* {.fieldNumber: 3.}: Opt[Limit]
  status* {.fieldNumber: 4, ext.}: Opt[StatusV2]

StopMessageType {.pure.} = enum
  Connect = 0, Status = 1

Voucher {.proto3.} = object
  relayPeerId* {.fieldNumber: 1, ext.}: Opt[PeerId]
  reservingPeerId* {.fieldNumber: 2, ext.}: Opt[PeerId]
  expiration* {.fieldNumber: 3, pint.}: Opt[uint64]