1 files changed, 7 insertions, 0 deletions

diff --git a/src/Network/Tox/Onion/Transport.hs b/src/Network/Tox/Onion/Transport.hs
index ef9121f2..160b99f7 100644
--- a/src/Network/Tox/Onion/Transport.hs
+++ b/src/Network/Tox/Onion/Transport.hs
@@ -347,6 +347,11 @@ deriving instance ( Show (Forwarding (ThreeMinus n) (OnionMessage Encrypted))
                   , KnownNat (PeanoNat n)
                   ) => Show (OnionRequest n)
 
+instance Sized (OnionRequest N0) where -- N1 and N2 are the same, N3 does not encode the nonce.
+    size = contramap onionNonce size
+        <> contramap onionForward size
+        <> contramap pathFromOwner size
+
 instance ( Serialize (Forwarding (ThreeMinus n) (OnionMessage Encrypted))
          , Sized (ReturnPath n)
          , Serialize (ReturnPath n)
@@ -383,6 +388,8 @@ instance ( Serialize (ReturnPath n) ) => Serialize (OnionResponse n) where
                                              . getOnionReply)
     put (OnionResponse p m) = put p >> putOnionMsg m
 
+instance (Sized (ReturnPath n)) => Sized (OnionResponse (S n)) where
+    size = contramap pathToOwner size <> contramap msgToOwner size
 
 data Addressed a = Addressed { sockAddr :: SockAddr, unaddressed :: a }
  deriving (Eq,Show)