X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Fpeer_handler.rs;h=1b75755fac2b897079d89902a4682dbe8b21c604;hb=3ccf06416091e107f443ee92027501105c48054b;hp=d19928fa1fbc14f940658102b4373575bae3324b;hpb=e5b74026a0a463e3e9029fc70e2d5813784905a1;p=rust-lightning

diff --git a/lightning/src/ln/peer_handler.rs b/lightning/src/ln/peer_handler.rs
index d19928fa..1b75755f 100644
--- a/lightning/src/ln/peer_handler.rs
+++ b/lightning/src/ln/peer_handler.rs
@@ -23,11 +23,12 @@ use crate::events::{MessageSendEvent, MessageSendEventsProvider};
 use crate::ln::types::ChannelId;
 use crate::ln::features::{InitFeatures, NodeFeatures};
 use crate::ln::msgs;
-use crate::ln::msgs::{ChannelMessageHandler, LightningError, SocketAddress, OnionMessageHandler, RoutingMessageHandler};
+use crate::ln::msgs::{ChannelMessageHandler, Init, LightningError, SocketAddress, OnionMessageHandler, RoutingMessageHandler};
 use crate::util::ser::{VecWriter, Writeable, Writer};
 use crate::ln::peer_channel_encryptor::{PeerChannelEncryptor, NextNoiseStep, MessageBuf, MSG_BUF_ALLOC_SIZE};
 use crate::ln::wire;
 use crate::ln::wire::{Encode, Type};
+use crate::onion_message::async_payments::{AsyncPaymentsMessageHandler, HeldHtlcAvailable, ReleaseHeldHtlc};
 use crate::onion_message::messenger::{CustomOnionMessageHandler, PendingOnionMessage, Responder, ResponseInstruction};
 use crate::onion_message::offers::{OffersMessage, OffersMessageHandler};
 use crate::onion_message::packet::OnionMessageContents;
@@ -79,6 +80,16 @@ pub trait CustomMessageHandler: wire::CustomMessageReader {
 	/// connection to the node exists, then the message is simply not sent.
 	fn get_and_clear_pending_msg(&self) -> Vec<(PublicKey, Self::CustomMessage)>;
 
+	/// Indicates a peer disconnected.
+	fn peer_disconnected(&self, their_node_id: &PublicKey);
+
+	/// Handle a peer connecting.
+	///
+	/// May return an `Err(())` if the features the peer supports are not sufficient to communicate
+	/// with us. Implementors should be somewhat conservative about doing so, however, as other
+	/// message handlers may still wish to communicate with this peer.
+	fn peer_connected(&self, their_node_id: &PublicKey, msg: &Init, inbound: bool) -> Result<(), ()>;
+
 	/// Gets the node feature flags which this handler itself supports. All available handlers are
 	/// queried similarly and their feature flags are OR'd together to form the [`NodeFeatures`]
 	/// which are broadcasted in our [`NodeAnnouncement`] message.
@@ -138,6 +149,14 @@ impl OffersMessageHandler for IgnoringMessageHandler {
 		ResponseInstruction::NoResponse
 	}
 }
+impl AsyncPaymentsMessageHandler for IgnoringMessageHandler {
+	fn held_htlc_available(
+		&self, _message: HeldHtlcAvailable, _responder: Option<Responder>,
+	) -> ResponseInstruction<ReleaseHeldHtlc> {
+		ResponseInstruction::NoResponse
+	}
+	fn release_held_htlc(&self, _message: ReleaseHeldHtlc) {}
+}
 impl CustomOnionMessageHandler for IgnoringMessageHandler {
 	type CustomMessage = Infallible;
 	fn handle_custom_message(&self, _message: Self::CustomMessage, _responder: Option<Responder>) -> ResponseInstruction<Self::CustomMessage> {
@@ -190,6 +209,10 @@ impl CustomMessageHandler for IgnoringMessageHandler {
 
 	fn get_and_clear_pending_msg(&self) -> Vec<(PublicKey, Self::CustomMessage)> { Vec::new() }
 
+	fn peer_disconnected(&self, _their_node_id: &PublicKey) {}
+
+	fn peer_connected(&self, _their_node_id: &PublicKey, _msg: &Init, _inbound: bool) -> Result<(), ()> { Ok(()) }
+
 	fn provided_node_features(&self) -> NodeFeatures { NodeFeatures::empty() }
 
 	fn provided_init_features(&self, _their_node_id: &PublicKey) -> InitFeatures {
@@ -251,7 +274,7 @@ impl ChannelMessageHandler for ErroringMessageHandler {
 		ErroringMessageHandler::push_error(&self, their_node_id, msg.channel_id);
 	}
 	#[cfg(splicing)]
-	fn handle_splice(&self, their_node_id: &PublicKey, msg: &msgs::Splice) {
+	fn handle_splice_init(&self, their_node_id: &PublicKey, msg: &msgs::SpliceInit) {
 		ErroringMessageHandler::push_error(&self, their_node_id, msg.channel_id);
 	}
 	#[cfg(splicing)]
@@ -1680,6 +1703,10 @@ impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, OM: Deref, L: Deref, CM
 				log_debug!(logger, "Onion Message Handler decided we couldn't communicate with peer {}", log_pubkey!(their_node_id));
 				return Err(PeerHandleError { }.into());
 			}
+			if let Err(()) = self.message_handler.custom_message_handler.peer_connected(&their_node_id, &msg, peer_lock.inbound_connection) {
+				log_debug!(logger, "Custom Message Handler decided we couldn't communicate with peer {}", log_pubkey!(their_node_id));
+				return Err(PeerHandleError { }.into());
+			}
 
 			peer_lock.awaiting_pong_timer_tick_intervals = 0;
 			peer_lock.their_features = Some(msg.features);
@@ -1788,8 +1815,8 @@ impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, OM: Deref, L: Deref, CM
 
 			#[cfg(splicing)]
 			// Splicing messages:
-			wire::Message::Splice(msg) => {
-				self.message_handler.chan_handler.handle_splice(&their_node_id, &msg);
+			wire::Message::SpliceInit(msg) => {
+				self.message_handler.chan_handler.handle_splice_init(&their_node_id, &msg);
 			}
 			#[cfg(splicing)]
 			wire::Message::SpliceAck(msg) => {
@@ -2127,9 +2154,9 @@ impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, OM: Deref, L: Deref, CM
 									&msg.channel_id);
 							self.enqueue_message(&mut *get_peer_for_forwarding!(node_id), msg);
 						}
-						MessageSendEvent::SendSplice { ref node_id, ref msg} => {
+						MessageSendEvent::SendSpliceInit { ref node_id, ref msg} => {
 							let logger = WithContext::from(&self.logger, Some(*node_id), Some(msg.channel_id), None);
-							log_debug!(logger, "Handling SendSplice event in peer_handler for node {} for channel {}",
+							log_debug!(logger, "Handling SendSpliceInit event in peer_handler for node {} for channel {}",
 									log_pubkey!(node_id),
 									&msg.channel_id);
 							self.enqueue_message(&mut *get_peer_for_forwarding!(node_id), msg);
@@ -2430,6 +2457,7 @@ impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, OM: Deref, L: Deref, CM
 			log_trace!(WithContext::from(&self.logger, Some(node_id), None, None), "Disconnecting peer with id {} due to {}", node_id, reason);
 			self.message_handler.chan_handler.peer_disconnected(&node_id);
 			self.message_handler.onion_message_handler.peer_disconnected(&node_id);
+			self.message_handler.custom_message_handler.peer_disconnected(&node_id);
 		}
 		descriptor.disconnect_socket();
 	}
@@ -2452,6 +2480,7 @@ impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, OM: Deref, L: Deref, CM
 					if !peer.handshake_complete() { return; }
 					self.message_handler.chan_handler.peer_disconnected(&node_id);
 					self.message_handler.onion_message_handler.peer_disconnected(&node_id);
+					self.message_handler.custom_message_handler.peer_disconnected(&node_id);
 				}
 			}
 		};
@@ -2680,7 +2709,7 @@ mod tests {
 	use crate::ln::peer_channel_encryptor::PeerChannelEncryptor;
 	use crate::ln::peer_handler::{CustomMessageHandler, PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler, filter_addresses, ErroringMessageHandler, MAX_BUFFER_DRAIN_TICK_INTERVALS_PER_PEER};
 	use crate::ln::{msgs, wire};
-	use crate::ln::msgs::{LightningError, SocketAddress};
+	use crate::ln::msgs::{Init, LightningError, SocketAddress};
 	use crate::util::test_utils;
 
 	use bitcoin::Network;
@@ -2747,6 +2776,11 @@ mod tests {
 
 		fn get_and_clear_pending_msg(&self) -> Vec<(PublicKey, Self::CustomMessage)> { Vec::new() }
 
+
+		fn peer_disconnected(&self, _their_node_id: &PublicKey) {}
+
+		fn peer_connected(&self, _their_node_id: &PublicKey, _msg: &Init, _inbound: bool) -> Result<(), ()> { Ok(()) }
+
 		fn provided_node_features(&self) -> NodeFeatures { NodeFeatures::empty() }
 
 		fn provided_init_features(&self, _: &PublicKey) -> InitFeatures {