Export Onion Message structs in their respective modules

Re-exports in Rust make `use` statements a little shorter, but for
otherwise don't materially change a crate's API. Sadly, the C
bindings generator currently can't figure out re-exports, but it
also exports everything into one global namespace, so it doesn't
matter much anyway.

Author: TheBlueMatt

fuzz/src/onion_message.rs

@@ -11,7 +11,8 @@ use lightning::ln::script::ShutdownScript;
 use lightning::util::enforcing_trait_impls::EnforcingSigner;
 use lightning::util::logger::Logger;
 use lightning::util::ser::{Readable, Writeable, Writer};
-use lightning::onion_message::{CustomOnionMessageContents, CustomOnionMessageHandler, OnionMessenger};
+use lightning::onion_message::packet::CustomOnionMessageContents;
+use lightning::onion_message::messenger::{OnionMessenger, CustomOnionMessageHandler};
 
 use crate::utils::test_logger;
 

lightning-rapid-gossip-sync/src/lib.rs

@@ -81,10 +81,10 @@ use lightning::io;
 use lightning::routing::gossip::NetworkGraph;
 use lightning::util::logger::Logger;
 
-pub use crate::error::GraphSyncError;
+use crate::error::GraphSyncError;
 
 /// Error types that these functions can return
-mod error;
+pub mod error;
 
 /// Core functionality of this crate
 mod processing;

lightning/src/onion_message/messenger.rs

@@ -22,7 +22,7 @@ use crate::ln::features::{InitFeatures, NodeFeatures};
 use crate::ln::msgs::{self, OnionMessageHandler};
 use crate::ln::onion_utils;
 use crate::ln::peer_handler::IgnoringMessageHandler;
-pub use super::packet::{CustomOnionMessageContents, OnionMessageContents};
+pub(crate) use super::packet::{CustomOnionMessageContents, OnionMessageContents};
 use super::packet::{BIG_PACKET_HOP_DATA_LEN, ForwardControlTlvs, Packet, Payload, ReceiveControlTlvs, SMALL_PACKET_HOP_DATA_LEN};
 use crate::util::logger::Logger;
 use crate::util::ser::Writeable;
@@ -45,7 +45,8 @@ use crate::prelude::*;
 /// # use lightning::blinded_path::BlindedPath;
 /// # use lightning::chain::keysinterface::KeysManager;
 /// # use lightning::ln::peer_handler::IgnoringMessageHandler;
-/// # use lightning::onion_message::{CustomOnionMessageContents, Destination, OnionMessageContents, OnionMessenger};
+/// # use lightning::onion_message::messenger::{Destination, OnionMessenger};
+/// # use lightning::onion_message::packet::{CustomOnionMessageContents, OnionMessageContents};
 /// # use lightning::util::logger::{Logger, Record};
 /// # use lightning::util::ser::{Writeable, Writer};
 /// # use lightning::io;

lightning/src/onion_message/mod.rs

@@ -20,11 +20,11 @@
 //! [offers]: <https://github.com/lightning/bolts/pull/798>
 //! [blinded paths]: crate::blinded_path::BlindedPath
 
-mod messenger;
-mod packet;
+pub mod messenger;
+pub mod packet;
 #[cfg(test)]
 mod functional_tests;
 
 // Re-export structs so they can be imported with just the `onion_message::` module prefix.
-pub use self::messenger::{CustomOnionMessageContents, CustomOnionMessageHandler, Destination, OnionMessageContents, OnionMessenger, SendError, SimpleArcOnionMessenger, SimpleRefOnionMessenger};
+pub(crate) use self::messenger::{CustomOnionMessageContents, CustomOnionMessageHandler, Destination, OnionMessageContents, OnionMessenger, SendError, SimpleArcOnionMessenger, SimpleRefOnionMessenger};
 pub(crate) use self::packet::{ControlTlvs, Packet};