use bitcoin::secp256k1::{self, Secp256k1, SecretKey, PublicKey};
use crate::chain::keysinterface::{KeysManager, NodeSigner, Recipient};
+use crate::events::{MessageSendEvent, MessageSendEventsProvider, OnionMessageProvider};
use crate::ln::features::{InitFeatures, NodeFeatures};
use crate::ln::msgs;
use crate::ln::msgs::{ChannelMessageHandler, LightningError, NetAddress, OnionMessageHandler, RoutingMessageHandler};
use crate::ln::wire;
use crate::ln::wire::Encode;
use crate::onion_message::{CustomOnionMessageContents, CustomOnionMessageHandler, SimpleArcOnionMessenger, SimpleRefOnionMessenger};
-use crate::routing::gossip::{NetworkGraph, P2PGossipSync, NodeId};
+use crate::routing::gossip::{NetworkGraph, P2PGossipSync, NodeId, NodeAlias};
use crate::util::atomic_counter::AtomicCounter;
-use crate::util::events::{MessageSendEvent, MessageSendEventsProvider, OnionMessageProvider};
use crate::util::logger::Logger;
use crate::prelude::*;
}
/// Provides references to trait impls which handle different types of messages.
-pub struct MessageHandler<CM: Deref, RM: Deref, OM: Deref> where
- CM::Target: ChannelMessageHandler,
- RM::Target: RoutingMessageHandler,
- OM::Target: OnionMessageHandler,
+pub struct MessageHandler<CM: Deref, RM: Deref, OM: Deref, CustomM: Deref> where
+ CM::Target: ChannelMessageHandler,
+ RM::Target: RoutingMessageHandler,
+ OM::Target: OnionMessageHandler,
+ CustomM::Target: CustomMessageHandler,
{
/// A message handler which handles messages specific to channels. Usually this is just a
/// [`ChannelManager`] object or an [`ErroringMessageHandler`].
/// [`P2PGossipSync`]: crate::routing::gossip::P2PGossipSync
pub route_handler: RM,
- /// A message handler which handles onion messages. For now, this can only be an
- /// [`IgnoringMessageHandler`].
+ /// A message handler which handles onion messages. This should generally be an
+ /// [`OnionMessenger`], but can also be an [`IgnoringMessageHandler`].
+ ///
+ /// [`OnionMessenger`]: crate::onion_message::OnionMessenger
pub onion_message_handler: OM,
+
+ /// A message handler which handles custom messages. The only LDK-provided implementation is
+ /// [`IgnoringMessageHandler`].
+ pub custom_message_handler: CustomM,
}
/// Provides an object which can be used to send data to and which uniquely identifies a connection
sync_status: InitSyncTracker,
msgs_sent_since_pong: usize,
- awaiting_pong_timer_tick_intervals: i8,
+ awaiting_pong_timer_tick_intervals: i64,
received_message_since_timer_tick: bool,
sent_gossip_timestamp_filter: bool,
/// SimpleRefPeerManager is the more appropriate type. Defining these type aliases prevents
/// issues such as overly long function definitions.
///
-/// (C-not exported) as `Arc`s don't make sense in bindings.
+/// This is not exported to bindings users as `Arc`s don't make sense in bindings.
pub type SimpleArcPeerManager<SD, M, T, F, C, L> = PeerManager<SD, Arc<SimpleArcChannelManager<M, T, F, L>>, Arc<P2PGossipSync<Arc<NetworkGraph<Arc<L>>>, Arc<C>, Arc<L>>>, Arc<SimpleArcOnionMessenger<L>>, Arc<L>, IgnoringMessageHandler, Arc<KeysManager>>;
/// SimpleRefPeerManager is a type alias for a PeerManager reference, and is the reference
/// But if this is not necessary, using a reference is more efficient. Defining these type aliases
/// helps with issues such as long function definitions.
///
-/// (C-not exported) as general type aliases don't make sense in bindings.
+/// This is not exported to bindings users as general type aliases don't make sense in bindings.
pub type SimpleRefPeerManager<'a, 'b, 'c, 'd, 'e, 'f, 'g, 'h, 'i, 'j, 'k, 'l, 'm, SD, M, T, F, C, L> = PeerManager<SD, SimpleRefChannelManager<'a, 'b, 'c, 'd, 'e, 'f, 'g, 'm, M, T, F, L>, &'f P2PGossipSync<&'g NetworkGraph<&'f L>, &'h C, &'f L>, &'i SimpleRefOnionMessenger<'j, 'k, L>, &'f L, IgnoringMessageHandler, &'c KeysManager>;
+
+/// A generic trait which is implemented for all [`PeerManager`]s. This makes bounding functions or
+/// structs on any [`PeerManager`] much simpler as only this trait is needed as a bound, rather
+/// than the full set of bounds on [`PeerManager`] itself.
+#[allow(missing_docs)]
+pub trait APeerManager {
+ type Descriptor: SocketDescriptor;
+ type CMT: ChannelMessageHandler + ?Sized;
+ type CM: Deref<Target=Self::CMT>;
+ type RMT: RoutingMessageHandler + ?Sized;
+ type RM: Deref<Target=Self::RMT>;
+ type OMT: OnionMessageHandler + ?Sized;
+ type OM: Deref<Target=Self::OMT>;
+ type LT: Logger + ?Sized;
+ type L: Deref<Target=Self::LT>;
+ type CMHT: CustomMessageHandler + ?Sized;
+ type CMH: Deref<Target=Self::CMHT>;
+ type NST: NodeSigner + ?Sized;
+ 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>;
+}
+
+impl<Descriptor: SocketDescriptor, CM: Deref, RM: Deref, OM: Deref, L: Deref, CMH: Deref, NS: Deref>
+APeerManager for PeerManager<Descriptor, CM, RM, OM, L, CMH, NS> where
+ CM::Target: ChannelMessageHandler,
+ RM::Target: RoutingMessageHandler,
+ OM::Target: OnionMessageHandler,
+ L::Target: Logger,
+ CMH::Target: CustomMessageHandler,
+ NS::Target: NodeSigner,
+{
+ type Descriptor = Descriptor;
+ type CMT = <CM as Deref>::Target;
+ type CM = CM;
+ type RMT = <RM as Deref>::Target;
+ type RM = RM;
+ type OMT = <OM as Deref>::Target;
+ type OM = OM;
+ type LT = <L as Deref>::Target;
+ type L = L;
+ type CMHT = <CMH as Deref>::Target;
+ type CMH = CMH;
+ type NST = <NS as Deref>::Target;
+ type NS = NS;
+ fn as_ref(&self) -> &PeerManager<Descriptor, CM, RM, OM, L, CMH, NS> { self }
+}
+
/// A PeerManager manages a set of peers, described by their [`SocketDescriptor`] and marshalls
/// socket events into messages which it passes on to its [`MessageHandler`].
///
L::Target: Logger,
CMH::Target: CustomMessageHandler,
NS::Target: NodeSigner {
- message_handler: MessageHandler<CM, RM, OM>,
+ message_handler: MessageHandler<CM, RM, OM, CMH>,
/// Connection state for each connected peer - we have an outer read-write lock which is taken
/// as read while we're doing processing for a peer and taken write when a peer is being added
/// or removed.
last_node_announcement_serial: AtomicU32,
ephemeral_key_midstate: Sha256Engine,
- custom_message_handler: CMH,
peer_counter: AtomicCounter,
/// timestamp, however if it is not available a persistent counter that increases once per
/// minute should suffice.
///
- /// (C-not exported) as we can't export a PeerManager with a dummy route handler
+ /// This is not exported to bindings users as we can't export a PeerManager with a dummy route handler
pub fn new_channel_only(channel_message_handler: CM, onion_message_handler: OM, current_time: u32, ephemeral_random_data: &[u8; 32], logger: L, node_signer: NS) -> Self {
Self::new(MessageHandler {
chan_handler: channel_message_handler,
route_handler: IgnoringMessageHandler{},
onion_message_handler,
- }, current_time, ephemeral_random_data, logger, IgnoringMessageHandler{}, node_signer)
+ custom_message_handler: IgnoringMessageHandler{},
+ }, current_time, ephemeral_random_data, logger, node_signer)
}
}
/// `ephemeral_random_data` is used to derive per-connection ephemeral keys and must be
/// cryptographically secure random bytes.
///
- /// (C-not exported) as we can't export a PeerManager with a dummy channel handler
+ /// This is not exported to bindings users as we can't export a PeerManager with a dummy channel handler
pub fn new_routing_only(routing_message_handler: RM, current_time: u32, ephemeral_random_data: &[u8; 32], logger: L, node_signer: NS) -> Self {
Self::new(MessageHandler {
chan_handler: ErroringMessageHandler::new(),
route_handler: routing_message_handler,
onion_message_handler: IgnoringMessageHandler{},
- }, current_time, ephemeral_random_data, logger, IgnoringMessageHandler{}, node_signer)
+ custom_message_handler: IgnoringMessageHandler{},
+ }, current_time, ephemeral_random_data, logger, node_signer)
}
}
/// incremented irregularly internally. In general it is best to simply use the current UNIX
/// timestamp, however if it is not available a persistent counter that increases once per
/// minute should suffice.
- pub fn new(message_handler: MessageHandler<CM, RM, OM>, current_time: u32, ephemeral_random_data: &[u8; 32], logger: L, custom_message_handler: CMH, node_signer: NS) -> Self {
+ pub fn new(message_handler: MessageHandler<CM, RM, OM, CMH>, current_time: u32, ephemeral_random_data: &[u8; 32], logger: L, node_signer: NS) -> Self {
let mut ephemeral_key_midstate = Sha256::engine();
ephemeral_key_midstate.input(ephemeral_random_data);
gossip_processing_backlog_lifted: AtomicBool::new(false),
last_node_announcement_serial: AtomicU32::new(current_time),
logger,
- custom_message_handler,
node_signer,
secp_ctx,
}
match self.do_read_event(peer_descriptor, data) {
Ok(res) => Ok(res),
Err(e) => {
- log_trace!(self.logger, "Peer sent invalid data or we decided to disconnect due to a protocol error");
+ log_trace!(self.logger, "Disconnecting peer due to a protocol error (usually a duplicate connection).");
self.disconnect_event_internal(peer_descriptor);
Err(e)
}
peer.pending_read_is_header = true;
let mut reader = io::Cursor::new(&msg_data[..]);
- let message_result = wire::read(&mut reader, &*self.custom_message_handler);
+ let message_result = wire::read(&mut reader, &*self.message_handler.custom_message_handler);
let message = match message_result {
Ok(x) => x,
Err(e) => {
log_trace!(self.logger, "Received unknown odd message of type {}, ignoring", type_id);
},
wire::Message::Custom(custom) => {
- self.custom_message_handler.handle_custom_message(custom, &their_node_id)?;
+ self.message_handler.custom_message_handler.handle_custom_message(custom, &their_node_id)?;
},
};
Ok(should_forward)
}
}
- for (node_id, msg) in self.custom_message_handler.get_and_clear_pending_msg() {
+ for (node_id, msg) in self.message_handler.custom_message_handler.get_and_clear_pending_msg() {
if peers_to_disconnect.get(&node_id).is_some() { continue; }
self.enqueue_message(&mut *get_peer_for_forwarding!(&node_id), &msg);
}
if let Some((node_id, _)) = peer.their_node_id {
self.node_id_to_descriptor.lock().unwrap().remove(&node_id);
}
- self.do_disconnect(descriptor, &*peer, "ping timeout");
+ self.do_disconnect(descriptor, &*peer, "ping/handshake timeout");
}
}
}
features,
timestamp: self.last_node_announcement_serial.fetch_add(1, Ordering::AcqRel),
node_id: NodeId::from_pubkey(&self.node_signer.get_node_id(Recipient::Node).unwrap()),
- rgb, alias, addresses,
+ rgb,
+ alias: NodeAlias(alias),
+ addresses,
excess_address_data: Vec::new(),
excess_data: Vec::new(),
};
#[cfg(test)]
mod tests {
use crate::chain::keysinterface::{NodeSigner, Recipient};
+ use crate::events;
use crate::ln::peer_channel_encryptor::PeerChannelEncryptor;
use crate::ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler, filter_addresses};
use crate::ln::{msgs, wire};
use crate::ln::msgs::NetAddress;
- use crate::util::events;
use crate::util::test_utils;
use bitcoin::secp256k1::SecretKey;
let mut peers = Vec::new();
for i in 0..peer_count {
let ephemeral_bytes = [i as u8; 32];
- let msg_handler = MessageHandler { chan_handler: &cfgs[i].chan_handler, route_handler: &cfgs[i].routing_handler, onion_message_handler: IgnoringMessageHandler {} };
- let peer = PeerManager::new(msg_handler, 0, &ephemeral_bytes, &cfgs[i].logger, IgnoringMessageHandler {}, &cfgs[i].node_signer);
+ let msg_handler = MessageHandler {
+ chan_handler: &cfgs[i].chan_handler, route_handler: &cfgs[i].routing_handler,
+ onion_message_handler: IgnoringMessageHandler {}, custom_message_handler: IgnoringMessageHandler {}
+ };
+ let peer = PeerManager::new(msg_handler, 0, &ephemeral_bytes, &cfgs[i].logger, &cfgs[i].node_signer);
peers.push(peer);
}
if peers[0].read_event(&mut fd_a, &b_data).is_err() { break; }
cfgs[0].chan_handler.pending_events.lock().unwrap()
- .push(crate::util::events::MessageSendEvent::SendShutdown {
+ .push(crate::events::MessageSendEvent::SendShutdown {
node_id: peers[1].node_signer.get_node_id(Recipient::Node).unwrap(),
msg: msgs::Shutdown {
channel_id: [0; 32],
},
});
cfgs[1].chan_handler.pending_events.lock().unwrap()
- .push(crate::util::events::MessageSendEvent::SendShutdown {
+ .push(crate::events::MessageSendEvent::SendShutdown {
node_id: peers[0].node_signer.get_node_id(Recipient::Node).unwrap(),
msg: msgs::Shutdown {
channel_id: [0; 32],
projects / rust-lightning / blobdiff