Merge pull request #2791 from valentinewallace/2023-12-multihop-recv-followups

[rust-lightning] / lightning / src / ln / peer_handler.rs

diff --git a/lightning/src/ln/peer_handler.rs b/lightning/src/ln/peer_handler.rs
index 282e0a75e82326d59c0dcdbd6a9f0e91dc2d20e2..9f49b67932bc02c5972f5b7b1351a933df15eacb 100644 (file)
--- a/lightning/src/ln/peer_handler.rs
+++ b/lightning/src/ln/peer_handler.rs
@@ -18,8 +18,8 @@
 use bitcoin::blockdata::constants::ChainHash;
 use bitcoin::secp256k1::{self, Secp256k1, SecretKey, PublicKey};
 
-use crate::sign::{KeysManager, NodeSigner, Recipient};
-use crate::events::{MessageSendEvent, MessageSendEventsProvider};
+use crate::sign::{NodeSigner, Recipient};
+use crate::events::{EventHandler, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
 use crate::ln::ChannelId;
 use crate::ln::features::{InitFeatures, NodeFeatures};
 use crate::ln::msgs;
@@ -33,7 +33,7 @@ use crate::ln::wire::{Encode, Type};
 #[cfg(not(c_bindings))]
 use crate::onion_message::{SimpleArcOnionMessenger, SimpleRefOnionMessenger};
 use crate::onion_message::{CustomOnionMessageHandler, OffersMessage, OffersMessageHandler, OnionMessageContents, PendingOnionMessage};
-use crate::routing::gossip::{NetworkGraph, P2PGossipSync, NodeId, NodeAlias};
+use crate::routing::gossip::{NodeId, NodeAlias};
 use crate::util::atomic_counter::AtomicCounter;
 use crate::util::logger::{Logger, WithContext};
 use crate::util::string::PrintableString;
@@ -41,12 +41,19 @@ use crate::util::string::PrintableString;
 use crate::prelude::*;
 use crate::io;
 use alloc::collections::VecDeque;
-use crate::sync::{Arc, Mutex, MutexGuard, FairRwLock};
+use crate::sync::{Mutex, MutexGuard, FairRwLock};
 use core::sync::atomic::{AtomicBool, AtomicU32, AtomicI32, Ordering};
 use core::{cmp, hash, fmt, mem};
 use core::ops::Deref;
 use core::convert::Infallible;
-#[cfg(feature = "std")] use std::error;
+#[cfg(feature = "std")]
+use std::error;
+#[cfg(not(c_bindings))]
+use {
+       crate::routing::gossip::{NetworkGraph, P2PGossipSync},
+       crate::sign::KeysManager,
+       crate::sync::Arc,
+};
 
 use bitcoin::hashes::sha256::Hash as Sha256;
 use bitcoin::hashes::sha256::HashEngine as Sha256Engine;
@@ -89,6 +96,9 @@ pub trait CustomMessageHandler: wire::CustomMessageReader {
 /// A dummy struct which implements `RoutingMessageHandler` without storing any routing information
 /// or doing any processing. You can provide one of these as the route_handler in a MessageHandler.
 pub struct IgnoringMessageHandler{}
+impl EventsProvider for IgnoringMessageHandler {
+       fn process_pending_events<H: Deref>(&self, _handler: H) where H::Target: EventHandler {}
+}
 impl MessageSendEventsProvider for IgnoringMessageHandler {
        fn get_and_clear_pending_msg_events(&self) -> Vec<MessageSendEvent> { Vec::new() }
 }
@@ -115,6 +125,7 @@ impl OnionMessageHandler for IgnoringMessageHandler {
        fn next_onion_message_for_peer(&self, _peer_node_id: PublicKey) -> Option<msgs::OnionMessage> { None }
        fn peer_connected(&self, _their_node_id: &PublicKey, _init: &msgs::Init, _inbound: bool) -> Result<(), ()> { Ok(()) }
        fn peer_disconnected(&self, _their_node_id: &PublicKey) {}
+       fn timer_tick_occurred(&self) {}
        fn provided_node_features(&self) -> NodeFeatures { NodeFeatures::empty() }
        fn provided_init_features(&self, _their_node_id: &PublicKey) -> InitFeatures {
                InitFeatures::empty()
@@ -680,6 +691,8 @@ pub trait APeerManager {
        type NS: Deref<Target=Self::NST>;
        /// Gets a reference to the underlying [`PeerManager`].
        fn as_ref(&self) -> &PeerManager<Self::Descriptor, Self::CM, Self::RM, Self::OM, Self::L, Self::CMH, Self::NS>;
+       /// Returns the peer manager's [`OnionMessageHandler`].
+       fn onion_message_handler(&self) -> &Self::OMT;
 }
 
 impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, OM: Deref, L: Deref, CMH: Deref, NS: Deref>
@@ -705,6 +718,9 @@ APeerManager for PeerManager<Descriptor, CM, RM, OM, L, CMH, NS> where
        type NST = <NS as Deref>::Target;
        type NS = NS;
        fn as_ref(&self) -> &PeerManager<Descriptor, CM, RM, OM, L, CMH, NS> { self }
+       fn onion_message_handler(&self) -> &Self::OMT {
+               self.message_handler.onion_message_handler.deref()
+       }
 }
 
 /// A PeerManager manages a set of peers, described by their [`SocketDescriptor`] and marshalls
@@ -2479,7 +2495,6 @@ impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, OM: Deref, L: Deref, CM
        // broadcast_node_announcement panics) of the maximum-length addresses would fit in a 64KB
        // message...
        const HALF_MESSAGE_IS_ADDRS: u32 = ::core::u16::MAX as u32 / (SocketAddress::MAX_LEN as u32 + 1) / 2;
-       #[deny(const_err)]
        #[allow(dead_code)]
        // ...by failing to compile if the number of addresses that would be half of a message is
        // smaller than 100: