use crate::util::logger::{Level, Logger, WithContext};
use crate::util::string::PrintableString;
+#[allow(unused_imports)]
use crate::prelude::*;
+
use crate::io;
-use alloc::collections::VecDeque;
use crate::sync::{Mutex, MutexGuard, FairRwLock};
use core::sync::atomic::{AtomicBool, AtomicU32, AtomicI32, Ordering};
use core::{cmp, hash, fmt, mem};
fn handle_stfu(&self, their_node_id: &PublicKey, msg: &msgs::Stfu) {
ErroringMessageHandler::push_error(&self, their_node_id, msg.channel_id);
}
+ #[cfg(splicing)]
fn handle_splice(&self, their_node_id: &PublicKey, msg: &msgs::Splice) {
ErroringMessageHandler::push_error(&self, their_node_id, msg.channel_id);
}
+ #[cfg(splicing)]
fn handle_splice_ack(&self, their_node_id: &PublicKey, msg: &msgs::SpliceAck) {
ErroringMessageHandler::push_error(&self, their_node_id, msg.channel_id);
}
+ #[cfg(splicing)]
fn handle_splice_locked(&self, their_node_id: &PublicKey, msg: &msgs::SpliceLocked) {
ErroringMessageHandler::push_error(&self, their_node_id, msg.channel_id);
}
let networks = self.message_handler.chan_handler.get_chain_hashes();
let resp = msgs::Init { features, networks, remote_network_address: filter_addresses(peer.their_socket_address.clone()) };
self.enqueue_message(peer, &resp);
- peer.awaiting_pong_timer_tick_intervals = 0;
},
NextNoiseStep::ActThree => {
let their_node_id = try_potential_handleerror!(peer,
let networks = self.message_handler.chan_handler.get_chain_hashes();
let resp = msgs::Init { features, networks, remote_network_address: filter_addresses(peer.their_socket_address.clone()) };
self.enqueue_message(peer, &resp);
- peer.awaiting_pong_timer_tick_intervals = 0;
},
NextNoiseStep::NoiseComplete => {
if peer.pending_read_is_header {
}
/// Process an incoming message and return a decision (ok, lightning error, peer handling error) regarding the next action with the peer
+ ///
/// Returns the message back if it needs to be broadcasted to all other peers.
fn handle_message(
&self,
peer_mutex: &Mutex<Peer>,
-
mut peer_lock: MutexGuard<Peer>,
- message: wire::Message<<<CMH as core::ops::Deref>::Target as wire::CustomMessageReader>::CustomMessage>
- ) -> Result<Option<wire::Message<<<CMH as core::ops::Deref>::Target as wire::CustomMessageReader>::CustomMessage>>, MessageHandlingError> {
+ peer_lock: MutexGuard<Peer>,
+ message: wire::Message<<<CMH as Deref>::Target as wire::CustomMessageReader>::CustomMessage>
+ ) -> Result<Option<wire::Message<<<CMH as Deref>::Target as wire::CustomMessageReader>::CustomMessage>>, MessageHandlingError> {
let their_node_id = peer_lock.their_node_id.clone().expect("We know the peer's public key by the time we receive messages").0;
let logger = WithContext::from(&self.logger, Some(their_node_id), None);
+
+ let message = match self.do_handle_message_holding_peer_lock(peer_lock, message, &their_node_id, &logger)? {
+ Some(processed_message) => processed_message,
+ None => return Ok(None),
+ };
+
+ self.do_handle_message_without_peer_lock(peer_mutex, message, &their_node_id, &logger)
+ }
+
+ // Conducts all message processing that requires us to hold the `peer_lock`.
+ //
+ // Returns `None` if the message was fully processed and otherwise returns the message back to
+ // allow it to be subsequently processed by `do_handle_message_without_peer_lock`.
+ fn do_handle_message_holding_peer_lock<'a>(
+ &self,
+ mut peer_lock: MutexGuard<Peer>,
+ message: wire::Message<<<CMH as Deref>::Target as wire::CustomMessageReader>::CustomMessage>,
+ their_node_id: &PublicKey,
+ logger: &WithContext<'a, L>
+ ) -> Result<Option<wire::Message<<<CMH as Deref>::Target as wire::CustomMessageReader>::CustomMessage>>, MessageHandlingError>
+ {
peer_lock.received_message_since_timer_tick = true;
// Need an Init as first message
return Err(PeerHandleError { }.into());
}
+ peer_lock.awaiting_pong_timer_tick_intervals = 0;
peer_lock.their_features = Some(msg.features);
return Ok(None);
} else if peer_lock.their_features.is_none() {
peer_lock.received_channel_announce_since_backlogged = true;
}
- mem::drop(peer_lock);
+ Ok(Some(message))
+ }
+ // Conducts all message processing that doesn't require us to hold the `peer_lock`.
+ //
+ // Returns the message back if it needs to be broadcasted to all other peers.
+ fn do_handle_message_without_peer_lock<'a>(
+ &self,
+ peer_mutex: &Mutex<Peer>,
+ message: wire::Message<<<CMH as Deref>::Target as wire::CustomMessageReader>::CustomMessage>,
+ their_node_id: &PublicKey,
+ logger: &WithContext<'a, L>
+ ) -> Result<Option<wire::Message<<<CMH as Deref>::Target as wire::CustomMessageReader>::CustomMessage>>, MessageHandlingError>
+ {
if is_gossip_msg(message.type_id()) {
log_gossip!(logger, "Received message {:?} from {}", message, log_pubkey!(their_node_id));
} else {
self.message_handler.chan_handler.handle_stfu(&their_node_id, &msg);
}
+ #[cfg(splicing)]
// Splicing messages:
wire::Message::Splice(msg) => {
self.message_handler.chan_handler.handle_splice(&their_node_id, &msg);
}
+ #[cfg(splicing)]
wire::Message::SpliceAck(msg) => {
self.message_handler.chan_handler.handle_splice_ack(&their_node_id, &msg);
}
+ #[cfg(splicing)]
wire::Message::SpliceLocked(msg) => {
self.message_handler.chan_handler.handle_splice_locked(&their_node_id, &msg);
}
Ok(should_forward)
}
- fn forward_broadcast_msg(&self, peers: &HashMap<Descriptor, Mutex<Peer>>, msg: &wire::Message<<<CMH as core::ops::Deref>::Target as wire::CustomMessageReader>::CustomMessage>, except_node: Option<&PublicKey>) {
+ fn forward_broadcast_msg(&self, peers: &HashMap<Descriptor, Mutex<Peer>>, msg: &wire::Message<<<CMH as Deref>::Target as wire::CustomMessageReader>::CustomMessage>, except_node: Option<&PublicKey>) {
match msg {
wire::Message::ChannelAnnouncement(ref msg) => {
log_gossip!(self.logger, "Sending message to all peers except {:?} or the announced channel's counterparties: {:?}", except_node, msg);
// We do not have the peers write lock, so we just store that we're
// about to disconnect the peer and do it after we finish
// processing most messages.
- let msg = msg.map(|msg| wire::Message::<<<CMH as core::ops::Deref>::Target as wire::CustomMessageReader>::CustomMessage>::Error(msg));
+ let msg = msg.map(|msg| wire::Message::<<<CMH as Deref>::Target as wire::CustomMessageReader>::CustomMessage>::Error(msg));
peers_to_disconnect.insert(node_id, msg);
},
msgs::ErrorAction::DisconnectPeerWithWarning { msg } => {
use crate::ln::ChannelId;
use crate::ln::features::{InitFeatures, NodeFeatures};
use crate::ln::peer_channel_encryptor::PeerChannelEncryptor;
- use crate::ln::peer_handler::{CustomMessageHandler, PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler, filter_addresses};
+ 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::util::test_utils;
use bitcoin::blockdata::constants::ChainHash;
use bitcoin::secp256k1::{PublicKey, SecretKey};
- use crate::prelude::*;
use crate::sync::{Arc, Mutex};
use core::convert::Infallible;
use core::sync::atomic::{AtomicBool, Ordering};
+ #[allow(unused_imports)]
+ use crate::prelude::*;
+
#[derive(Clone)]
struct FileDescriptor {
fd: u16,
assert!(peers[0].read_event(&mut fd_a, &b_data).is_err());
}
+ #[test]
+ fn test_inbound_conn_handshake_complete_awaiting_pong() {
+ // Test that we do not disconnect an outbound peer after the noise handshake completes due
+ // to a pong timeout for a ping that was never sent if a timer tick fires after we send act
+ // two of the noise handshake along with our init message but before we receive their init
+ // message.
+ let logger = test_utils::TestLogger::new();
+ let node_signer_a = test_utils::TestNodeSigner::new(SecretKey::from_slice(&[42; 32]).unwrap());
+ let node_signer_b = test_utils::TestNodeSigner::new(SecretKey::from_slice(&[43; 32]).unwrap());
+ let peer_a = PeerManager::new(MessageHandler {
+ chan_handler: ErroringMessageHandler::new(),
+ route_handler: IgnoringMessageHandler {},
+ onion_message_handler: IgnoringMessageHandler {},
+ custom_message_handler: IgnoringMessageHandler {},
+ }, 0, &[0; 32], &logger, &node_signer_a);
+ let peer_b = PeerManager::new(MessageHandler {
+ chan_handler: ErroringMessageHandler::new(),
+ route_handler: IgnoringMessageHandler {},
+ onion_message_handler: IgnoringMessageHandler {},
+ custom_message_handler: IgnoringMessageHandler {},
+ }, 0, &[1; 32], &logger, &node_signer_b);
+
+ let a_id = node_signer_a.get_node_id(Recipient::Node).unwrap();
+ let mut fd_a = FileDescriptor {
+ fd: 1, outbound_data: Arc::new(Mutex::new(Vec::new())),
+ disconnect: Arc::new(AtomicBool::new(false)),
+ };
+ let mut fd_b = FileDescriptor {
+ fd: 1, outbound_data: Arc::new(Mutex::new(Vec::new())),
+ disconnect: Arc::new(AtomicBool::new(false)),
+ };
+
+ // Exchange messages with both peers until they both complete the init handshake.
+ let act_one = peer_b.new_outbound_connection(a_id, fd_b.clone(), None).unwrap();
+ peer_a.new_inbound_connection(fd_a.clone(), None).unwrap();
+
+ assert_eq!(peer_a.read_event(&mut fd_a, &act_one).unwrap(), false);
+ peer_a.process_events();
+
+ let act_two = fd_a.outbound_data.lock().unwrap().split_off(0);
+ assert_eq!(peer_b.read_event(&mut fd_b, &act_two).unwrap(), false);
+ peer_b.process_events();
+
+ // Calling this here triggers the race on inbound connections.
+ peer_b.timer_tick_occurred();
+
+ let act_three_with_init_b = fd_b.outbound_data.lock().unwrap().split_off(0);
+ assert!(!peer_a.peers.read().unwrap().get(&fd_a).unwrap().lock().unwrap().handshake_complete());
+ assert_eq!(peer_a.read_event(&mut fd_a, &act_three_with_init_b).unwrap(), false);
+ peer_a.process_events();
+ assert!(peer_a.peers.read().unwrap().get(&fd_a).unwrap().lock().unwrap().handshake_complete());
+
+ let init_a = fd_a.outbound_data.lock().unwrap().split_off(0);
+ assert!(!init_a.is_empty());
+
+ assert!(!peer_b.peers.read().unwrap().get(&fd_b).unwrap().lock().unwrap().handshake_complete());
+ assert_eq!(peer_b.read_event(&mut fd_b, &init_a).unwrap(), false);
+ peer_b.process_events();
+ assert!(peer_b.peers.read().unwrap().get(&fd_b).unwrap().lock().unwrap().handshake_complete());
+
+ // Make sure we're still connected.
+ assert_eq!(peer_b.peers.read().unwrap().len(), 1);
+
+ // B should send a ping on the first timer tick after `handshake_complete`.
+ assert!(fd_b.outbound_data.lock().unwrap().split_off(0).is_empty());
+ peer_b.timer_tick_occurred();
+ peer_b.process_events();
+ assert!(!fd_b.outbound_data.lock().unwrap().split_off(0).is_empty());
+
+ let mut send_warning = || {
+ {
+ let peers = peer_a.peers.read().unwrap();
+ let mut peer_b = peers.get(&fd_a).unwrap().lock().unwrap();
+ peer_a.enqueue_message(&mut peer_b, &msgs::WarningMessage {
+ channel_id: ChannelId([0; 32]),
+ data: "no disconnect plz".to_string(),
+ });
+ }
+ peer_a.process_events();
+ let msg = fd_a.outbound_data.lock().unwrap().split_off(0);
+ assert!(!msg.is_empty());
+ assert_eq!(peer_b.read_event(&mut fd_b, &msg).unwrap(), false);
+ peer_b.process_events();
+ };
+
+ // Fire more ticks until we reach the pong timeout. We send any message except pong to
+ // pretend the connection is still alive.
+ send_warning();
+ for _ in 0..MAX_BUFFER_DRAIN_TICK_INTERVALS_PER_PEER {
+ peer_b.timer_tick_occurred();
+ send_warning();
+ }
+ assert_eq!(peer_b.peers.read().unwrap().len(), 1);
+
+ // One more tick should enforce the pong timeout.
+ peer_b.timer_tick_occurred();
+ assert_eq!(peer_b.peers.read().unwrap().len(), 0);
+ }
+
#[test]
fn test_filter_addresses(){
// Tests the filter_addresses function.
projects / rust-lightning / blobdiff