Merge pull request #3062 from TheBlueMatt/2024-04-123-bindings

[0.0.123-bindings] Bindings changes for 0.0.123

fuzz/src/chanmon_consistency.rs

@@ -41,7 +41,8 @@ use lightning::sign::{KeyMaterial, InMemorySigner, Recipient, EntropySource, Nod
 use lightning::events;
 use lightning::events::MessageSendEventsProvider;
 use lightning::ln::{ChannelId, PaymentHash, PaymentPreimage, PaymentSecret};
-use lightning::ln::channelmanager::{ChainParameters, ChannelDetails, ChannelManager, PaymentSendFailure, ChannelManagerReadArgs, PaymentId, RecipientOnionFields};
+use lightning::ln::channelmanager::{ChainParameters, ChannelDetails, ChannelManager, ChannelManagerReadArgs, PaymentId};
+use lightning::ln::outbound_payment::{RecipientOnionFields, PaymentSendFailure};
 use lightning::ln::channel::FEE_SPIKE_BUFFER_FEE_INCREASE_MULTIPLE;
 use lightning::ln::msgs::{self, CommitmentUpdate, ChannelMessageHandler, DecodeError, UpdateAddHTLC, Init};
 use lightning::ln::script::ShutdownScript;

fuzz/src/full_stack.rs

@@ -37,7 +37,8 @@ use lightning::chain::transaction::OutPoint;
 use lightning::sign::{InMemorySigner, Recipient, KeyMaterial, EntropySource, NodeSigner, SignerProvider};
 use lightning::events::Event;
 use lightning::ln::{ChannelId, PaymentHash, PaymentPreimage, PaymentSecret};
-use lightning::ln::channelmanager::{ChainParameters, ChannelDetails, ChannelManager, PaymentId, RecipientOnionFields, Retry, InterceptId};
+use lightning::ln::channelmanager::{ChainParameters, ChannelDetails, ChannelManager, PaymentId, InterceptId};
+use lightning::ln::outbound_payment::{RecipientOnionFields, Retry};
 use lightning::ln::peer_handler::{MessageHandler,PeerManager,SocketDescriptor,IgnoringMessageHandler};
 use lightning::ln::msgs::{self, DecodeError};
 use lightning::ln::script::ShutdownScript;

lightning-background-processor/src/lib.rs

@@ -338,7 +338,7 @@ macro_rules! define_run_body {
 
 			if $channel_manager.get_cm().get_and_clear_needs_persistence() {
 				log_trace!($logger, "Persisting ChannelManager...");
-				$persister.persist_manager(&$channel_manager)?;
+				$persister.persist_manager($channel_manager.get_cm())?;
 				log_trace!($logger, "Done persisting ChannelManager.");
 			}
 			if $timer_elapsed(&mut last_freshness_call, FRESHNESS_TIMER) {
@@ -440,7 +440,7 @@ macro_rules! define_run_body {
 		// After we exit, ensure we persist the ChannelManager one final time - this avoids
 		// some races where users quit while channel updates were in-flight, with
 		// ChannelMonitor update(s) persisted without a corresponding ChannelManager update.
-		$persister.persist_manager(&$channel_manager)?;
+		$persister.persist_manager($channel_manager.get_cm())?;
 
 		// Persist Scorer on exit
 		if let Some(ref scorer) = $scorer {
@@ -704,7 +704,10 @@ where
 		persister, chain_monitor,
 		chain_monitor.process_pending_events_async(async_event_handler).await,
 		channel_manager, channel_manager.get_cm().process_pending_events_async(async_event_handler).await,
-		peer_manager, process_onion_message_handler_events_async(&peer_manager, async_event_handler).await,
+		peer_manager,
+		for event in onion_message_handler_events(peer_manager) {
+			handler(event).await
+		},
 		gossip_sync, logger, scorer, should_break, {
 			let fut = Selector {
 				a: channel_manager.get_cm().get_event_or_persistence_needed_future(),
@@ -729,23 +732,11 @@ where
 	)
 }
 
-#[cfg(feature = "futures")]
-async fn process_onion_message_handler_events_async<
-	EventHandlerFuture: core::future::Future<Output = ()>,
-	EventHandler: Fn(Event) -> EventHandlerFuture,
-	PM: 'static + Deref + Send + Sync,
->(
-	peer_manager: &PM, handler: EventHandler
-)
-where
-	PM::Target: APeerManager + Send + Sync,
-{
-	let events = core::cell::RefCell::new(Vec::new());
-	peer_manager.onion_message_handler().process_pending_events(&|e| events.borrow_mut().push(e));
-
-	for event in events.into_inner() {
-		handler(event).await
-	}
+fn onion_message_handler_events<PM: 'static + Deref + Send + Sync>(
+	peer_manager: &PM
+) -> impl Iterator<Item=Event> where PM::Target: APeerManager + Send + Sync {
+	peer_manager.onion_message_handler().get_and_clear_connections_needed()
+		.into_iter().map(|(node_id, addresses)| Event::ConnectionNeeded { node_id, addresses })
 }
 
 #[cfg(feature = "std")]
@@ -823,8 +814,8 @@ impl BackgroundProcessor {
 		F::Target: 'static + FeeEstimator,
 		L::Target: 'static + Logger,
 		P::Target: 'static + Persist<<CM::Target as AChannelManager>::Signer>,
-		PS::Target: 'static + Persister<'a, CM, L, SC>,
-		CM::Target: AChannelManager + Send + Sync,
+		PS::Target: 'static + Persister<'a, <<CM as Deref>::Target as AChannelManager>::M, <<CM as Deref>::Target as AChannelManager>::T, <<CM as Deref>::Target as AChannelManager>::ES, <<CM as Deref>::Target as AChannelManager>::NS, <<CM as Deref>::Target as AChannelManager>::SP, <<CM as Deref>::Target as AChannelManager>::F, <<CM as Deref>::Target as AChannelManager>::R, L, SC>,
+		CM::Target: AChannelManager<L = L> + Send + Sync,
 		PM::Target: APeerManager + Send + Sync,
 	{
 		let stop_thread = Arc::new(AtomicBool::new(false));
@@ -852,7 +843,9 @@ impl BackgroundProcessor {
 				persister, chain_monitor, chain_monitor.process_pending_events(&event_handler),
 				channel_manager, channel_manager.get_cm().process_pending_events(&event_handler),
 				peer_manager,
-				peer_manager.onion_message_handler().process_pending_events(&event_handler),
+				for event in onion_message_handler_events(&peer_manager) {
+					event_handler.handle_event(event);
+				},
 				gossip_sync, logger, scorer, stop_thread.load(Ordering::Acquire),
 				{ Sleeper::from_two_futures(
 					&channel_manager.get_cm().get_event_or_persistence_needed_future(),
@@ -989,9 +982,7 @@ mod tests {
 				Arc<NetworkGraph<Arc<test_utils::TestLogger>>>,
 				Arc<test_utils::TestLogger>,
 				Arc<KeysManager>,
-				Arc<LockingWrapper<TestScorer>>,
-				(),
-				TestScorer>
+				Arc<LockingWrapper<TestScorer>>>
 			>,
 			Arc<test_utils::TestLogger>>;
 
@@ -1151,9 +1142,10 @@ mod tests {
 	}
 
 	impl ScoreLookUp for TestScorer {
+		#[cfg(not(c_bindings))]
 		type ScoreParams = ();
 		fn channel_penalty_msat(
-			&self, _candidate: &CandidateRouteHop, _usage: ChannelUsage, _score_params: &Self::ScoreParams
+			&self, _candidate: &CandidateRouteHop, _usage: ChannelUsage, _score_params: &lightning::routing::scoring::ProbabilisticScoringFeeParameters
 		) -> u64 { unimplemented!(); }
 	}
 

lightning-invoice/src/payment.rs

@@ -13,7 +13,7 @@ use crate::Bolt11Invoice;
 use bitcoin::hashes::Hash;
 
 use lightning::ln::types::PaymentHash;
-use lightning::ln::channelmanager::RecipientOnionFields;
+use lightning::ln::outbound_payment::RecipientOnionFields;
 use lightning::routing::router::{PaymentParameters, RouteParameters};
 
 /// Builds the necessary parameters to pay or pre-flight probe the given zero-amount
@@ -170,7 +170,8 @@ mod tests {
 	#[cfg(feature = "std")]
 	fn payment_metadata_end_to_end() {
 		use lightning::events::Event;
-		use lightning::ln::channelmanager::{Retry, PaymentId};
+		use lightning::ln::channelmanager::PaymentId;
+		use lightning::ln::outbound_payment::Retry;
 		use lightning::ln::msgs::ChannelMessageHandler;
 		use lightning::ln::functional_test_utils::*;
 		// Test that a payment metadata read from an invoice passed to `pay_invoice` makes it all

lightning-invoice/src/utils.rs

@@ -827,7 +827,8 @@ mod test {
 	use lightning::ln::types::PaymentHash;
 	#[cfg(feature = "std")]
 	use lightning::ln::types::PaymentPreimage;
-	use lightning::ln::channelmanager::{PhantomRouteHints, MIN_FINAL_CLTV_EXPIRY_DELTA, PaymentId, RecipientOnionFields, Retry};
+	use lightning::ln::channelmanager::{PhantomRouteHints, MIN_FINAL_CLTV_EXPIRY_DELTA, PaymentId};
+	use lightning::ln::outbound_payment::{RecipientOnionFields, Retry};
 	use lightning::ln::functional_test_utils::*;
 	use lightning::ln::msgs::ChannelMessageHandler;
 	use lightning::routing::router::{PaymentParameters, RouteParameters};

lightning/src/blinded_path/mod.rs

@@ -15,6 +15,8 @@ pub(crate) mod utils;
 
 use bitcoin::secp256k1::{self, PublicKey, Secp256k1, SecretKey};
 
+use core::ops::Deref;
+
 use crate::ln::msgs::DecodeError;
 use crate::offers::invoice::BlindedPayInfo;
 use crate::routing::gossip::{NodeId, ReadOnlyNetworkGraph};
@@ -115,9 +117,9 @@ pub struct BlindedHop {
 
 impl BlindedPath {
 	/// Create a one-hop blinded path for a message.
-	pub fn one_hop_for_message<ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification>(
-		recipient_node_id: PublicKey, entropy_source: &ES, secp_ctx: &Secp256k1<T>
-	) -> Result<Self, ()> {
+	pub fn one_hop_for_message<ES: Deref, T: secp256k1::Signing + secp256k1::Verification>(
+		recipient_node_id: PublicKey, entropy_source: ES, secp_ctx: &Secp256k1<T>
+	) -> Result<Self, ()> where ES::Target: EntropySource {
 		Self::new_for_message(&[recipient_node_id], entropy_source, secp_ctx)
 	}
 
@@ -126,9 +128,9 @@ impl BlindedPath {
 	///
 	/// Errors if no hops are provided or if `node_pk`(s) are invalid.
 	//  TODO: make all payloads the same size with padding + add dummy hops
-	pub fn new_for_message<ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification>(
-		node_pks: &[PublicKey], entropy_source: &ES, secp_ctx: &Secp256k1<T>
-	) -> Result<Self, ()> {
+	pub fn new_for_message<ES: Deref, T: secp256k1::Signing + secp256k1::Verification>(
+		node_pks: &[PublicKey], entropy_source: ES, secp_ctx: &Secp256k1<T>
+	) -> Result<Self, ()> where ES::Target: EntropySource {
 		if node_pks.is_empty() { return Err(()) }
 		let blinding_secret_bytes = entropy_source.get_secure_random_bytes();
 		let blinding_secret = SecretKey::from_slice(&blinding_secret_bytes[..]).expect("RNG is busted");
@@ -142,15 +144,15 @@ impl BlindedPath {
 	}
 
 	/// Create a one-hop blinded path for a payment.
-	pub fn one_hop_for_payment<ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification>(
+	pub fn one_hop_for_payment<ES: Deref, T: secp256k1::Signing + secp256k1::Verification>(
 		payee_node_id: PublicKey, payee_tlvs: payment::ReceiveTlvs, min_final_cltv_expiry_delta: u16,
-		entropy_source: &ES, secp_ctx: &Secp256k1<T>
-	) -> Result<(BlindedPayInfo, Self), ()> {
+		entropy_source: ES, secp_ctx: &Secp256k1<T>
+	) -> Result<(BlindedPayInfo, Self), ()> where ES::Target: EntropySource {
 		// This value is not considered in pathfinding for 1-hop blinded paths, because it's intended to
 		// be in relation to a specific channel.
 		let htlc_maximum_msat = u64::max_value();
 		Self::new_for_payment(
-			&[], payee_node_id, payee_tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta,
+			Vec::new(), payee_node_id, payee_tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta,
 			entropy_source, secp_ctx
 		)
 	}
@@ -164,25 +166,25 @@ impl BlindedPath {
 	///
 	/// [`ForwardTlvs`]: crate::blinded_path::payment::ForwardTlvs
 	//  TODO: make all payloads the same size with padding + add dummy hops
-	pub fn new_for_payment<ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification>(
-		intermediate_nodes: &[payment::ForwardNode], payee_node_id: PublicKey,
+	pub fn new_for_payment<ES: Deref, T: secp256k1::Signing + secp256k1::Verification>(
+		intermediate_nodes: Vec<payment::ForwardNode>, payee_node_id: PublicKey,
 		payee_tlvs: payment::ReceiveTlvs, htlc_maximum_msat: u64, min_final_cltv_expiry_delta: u16,
-		entropy_source: &ES, secp_ctx: &Secp256k1<T>
-	) -> Result<(BlindedPayInfo, Self), ()> {
+		entropy_source: ES, secp_ctx: &Secp256k1<T>
+	) -> Result<(BlindedPayInfo, Self), ()> where ES::Target: EntropySource {
 		let introduction_node = IntroductionNode::NodeId(
 			intermediate_nodes.first().map_or(payee_node_id, |n| n.node_id)
 		);
 		let blinding_secret_bytes = entropy_source.get_secure_random_bytes();
 		let blinding_secret = SecretKey::from_slice(&blinding_secret_bytes[..]).expect("RNG is busted");
 
 		let blinded_payinfo = payment::compute_payinfo(
-			intermediate_nodes, &payee_tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta
+			&intermediate_nodes, &payee_tlvs, htlc_maximum_msat, min_final_cltv_expiry_delta
 		)?;
 		Ok((blinded_payinfo, BlindedPath {
 			introduction_node,
 			blinding_point: PublicKey::from_secret_key(secp_ctx, &blinding_secret),
 			blinded_hops: payment::blinded_hops(
-				secp_ctx, intermediate_nodes, payee_node_id, payee_tlvs, &blinding_secret
+				secp_ctx, &intermediate_nodes, payee_node_id, payee_tlvs, &blinding_secret
 			).map_err(|_| ())?,
 		}))
 	}
@@ -266,15 +268,15 @@ impl_writeable!(BlindedHop, {
 
 impl Direction {
 	/// Returns the [`NodeId`] from the inputs corresponding to the direction.
-	pub fn select_node_id<'a>(&self, node_a: &'a NodeId, node_b: &'a NodeId) -> &'a NodeId {
+	pub(crate) fn select_node_id<'a>(&self, node_a: &'a NodeId, node_b: &'a NodeId) -> &'a NodeId {
 		match self {
 			Direction::NodeOne => core::cmp::min(node_a, node_b),
 			Direction::NodeTwo => core::cmp::max(node_a, node_b),
 		}
 	}
 
 	/// Returns the [`PublicKey`] from the inputs corresponding to the direction.
-	pub fn select_pubkey<'a>(&self, node_a: &'a PublicKey, node_b: &'a PublicKey) -> &'a PublicKey {
+	pub(crate) fn select_pubkey<'a>(&self, node_a: &'a PublicKey, node_b: &'a PublicKey) -> &'a PublicKey {
 		let (node_one, node_two) = if NodeId::from_pubkey(node_a) < NodeId::from_pubkey(node_b) {
 			(node_a, node_b)
 		} else {

lightning/src/chain/channelmonitor.rs

@@ -781,7 +781,7 @@ pub struct ChannelMonitor<Signer: WriteableEcdsaChannelSigner> {
 	pub(super) inner: Mutex<ChannelMonitorImpl<Signer>>,
 }
 
-impl<Signer: WriteableEcdsaChannelSigner> Clone for ChannelMonitor<Signer> where Signer: Clone {
+impl<Signer: WriteableEcdsaChannelSigner> Clone for ChannelMonitor<Signer> {
 	fn clone(&self) -> Self {
 		let inner = self.inner.lock().unwrap().clone();
 		ChannelMonitor::from_impl(inner)
@@ -4468,8 +4468,8 @@ where
 
 const MAX_ALLOC_SIZE: usize = 64*1024;
 
-impl<'a, 'b, ES: EntropySource, SP: SignerProvider> ReadableArgs<(&'a ES, &'b SP)>
-		for (BlockHash, ChannelMonitor<SP::EcdsaSigner>) {
+impl<'a, 'b, ES: EntropySource, Signer: WriteableEcdsaChannelSigner, SP: SignerProvider<EcdsaSigner=Signer>> ReadableArgs<(&'a ES, &'b SP)>
+		for (BlockHash, ChannelMonitor<Signer>) {
 	fn read<R: io::Read>(reader: &mut R, args: (&'a ES, &'b SP)) -> Result<Self, DecodeError> {
 		macro_rules! unwrap_obj {
 			($key: expr) => {

lightning/src/chain/mod.rs

@@ -52,6 +52,9 @@ impl BestBlock {
 	}
 
 	/// Returns a `BestBlock` as identified by the given block hash and height.
+	///
+	/// This is not exported to bindings users directly as the bindings auto-generate an
+	/// equivalent `new`.
 	pub fn new(block_hash: BlockHash, height: u32) -> Self {
 		BestBlock { block_hash, height }
 	}

lightning/src/events/bump_transaction.rs

@@ -274,6 +274,8 @@ impl Utxo {
 	}
 
 	/// Returns a `Utxo` with the `satisfaction_weight` estimate for a P2WPKH nested in P2SH output.
+	///
+	/// This is not exported to bindings users as WPubkeyHash is not yet exported
 	pub fn new_nested_p2wpkh(outpoint: OutPoint, value: u64, pubkey_hash: &WPubkeyHash) -> Self {
 		let script_sig_size = 1 /* script_sig length */ +
 			1 /* OP_0 */ +
@@ -290,6 +292,8 @@ impl Utxo {
 	}
 
 	/// Returns a `Utxo` with the `satisfaction_weight` estimate for a SegWit v0 P2WPKH output.
+	///
+	/// This is not exported to bindings users as WPubkeyHash is not yet exported
 	pub fn new_v0_p2wpkh(outpoint: OutPoint, value: u64, pubkey_hash: &WPubkeyHash) -> Self {
 		Self {
 			outpoint,

lightning/src/lib.rs

@@ -96,6 +96,8 @@ pub use core2::io;
 #[cfg(not(feature = "std"))]
 #[doc(hidden)]
 /// IO utilities public only for use by in-crate macros. These should not be used externally
+///
+/// This is not exported to bindings users as it is not intended for public consumption.
 pub mod io_extras {
 	use core2::io::{self, Read, Write};
 
@@ -158,6 +160,8 @@ pub mod io_extras {
 #[cfg(feature = "std")]
 #[doc(hidden)]
 /// IO utilities public only for use by in-crate macros. These should not be used externally
+///
+/// This is not exported to bindings users as it is not intended for public consumption.
 mod io_extras {
 	pub fn read_to_end<D: ::std::io::Read>(mut d: D) -> Result<Vec<u8>, ::std::io::Error> {
 		let mut buf = Vec::new();

lightning/src/ln/channel.rs

@@ -6762,7 +6762,7 @@ impl<SP: Deref> Channel<SP> where
 				return None;
 			}
 		};
-		let our_node_sig = match node_signer.sign_gossip_message(msgs::UnsignedGossipMessage::ChannelAnnouncement(&announcement)) {
+		let our_node_sig = match node_signer.sign_gossip_message(msgs::UnsignedGossipMessage::ChannelAnnouncement(announcement.clone())) {
 			Err(_) => {
 				log_error!(logger, "Failed to generate node signature for channel_announcement. Channel will not be announced!");
 				return None;
@@ -6808,7 +6808,7 @@ impl<SP: Deref> Channel<SP> where
 				.map_err(|_| ChannelError::Ignore("Signer failed to retrieve own public key".to_owned()))?);
 			let were_node_one = announcement.node_id_1 == our_node_key;
 
-			let our_node_sig = node_signer.sign_gossip_message(msgs::UnsignedGossipMessage::ChannelAnnouncement(&announcement))
+			let our_node_sig = node_signer.sign_gossip_message(msgs::UnsignedGossipMessage::ChannelAnnouncement(announcement.clone()))
 				.map_err(|_| ChannelError::Ignore("Failed to generate node signature for channel_announcement".to_owned()))?;
 			match &self.context.holder_signer {
 				ChannelSignerType::Ecdsa(ecdsa) => {