use ln::peer_channel_encryptor::{PeerChannelEncryptor,NextNoiseStep};
use util::byte_utils;
use util::events::{EventsProvider,Event};
+use util::logger::Logger;
use std::collections::{HashMap,LinkedList};
use std::sync::{Arc, Mutex};
pending_events: Mutex<Vec<Event>>,
our_node_secret: SecretKey,
initial_syncs_sent: AtomicUsize,
+ logger: Arc<Logger>,
}
/// Manages and reacts to connection events. You probably want to use file descriptors as PeerIds.
/// PeerIds may repeat, but only after disconnect_event() has been called.
impl<Descriptor: SocketDescriptor> PeerManager<Descriptor> {
- pub fn new(message_handler: MessageHandler, our_node_secret: SecretKey) -> PeerManager<Descriptor> {
+ pub fn new(message_handler: MessageHandler, our_node_secret: SecretKey, logger: Arc<Logger>) -> PeerManager<Descriptor> {
PeerManager {
message_handler: message_handler,
peers: Mutex::new(PeerHolder { peers: HashMap::new(), node_id_to_descriptor: HashMap::new() }),
pending_events: Mutex::new(Vec::new()),
our_node_secret: our_node_secret,
initial_syncs_sent: AtomicUsize::new(0),
+ logger,
}
}
macro_rules! encode_and_send_msg {
($msg: expr, $msg_code: expr) => {
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!($msg, $msg_code)[..]));
+ {
+ log_trace!(self, "Encoding and sending message of type {} to {}", $msg_code, log_pubkey!(peer.their_node_id.unwrap()));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!($msg, $msg_code)[..]));
+ }
}
}
match $thing {
Ok(x) => x,
Err(e) => {
- println!("Got error handling message: {}!", e.err);
if let Some(action) = e.action {
match action {
msgs::ErrorAction::UpdateFailHTLC { msg } => {
match $thing {
Ok(x) => x,
Err(_e) => {
- println!("Error decoding message");
//TODO: Handle e?
return Err(PeerHandleError{ no_connection_possible: false });
}
match $thing {
Ok(x) => x,
Err(_e) => {
- println!("Error decoding message, ignoring due to lnd spec incompatibility. See https://github.com/lightningnetwork/lnd/issues/1407");
+ log_debug!(self, "Error decoding message, ignoring due to lnd spec incompatibility. See https://github.com/lightningnetwork/lnd/issues/1407");
continue;
}
};
peer.pending_read_is_header = true;
let msg_type = byte_utils::slice_to_be16(&msg_data[0..2]);
+ log_trace!(self, "Received message of type {} from {}", msg_type, log_pubkey!(peer.their_node_id.unwrap()));
if msg_type != 16 && peer.their_global_features.is_none() {
// Need an init message as first message
return Err(PeerHandleError{ no_connection_possible: false });
Event::PaymentReceived {..} => { /* Hand upstream */ },
Event::PaymentSent {..} => { /* Hand upstream */ },
Event::PaymentFailed {..} => { /* Hand upstream */ },
+ Event::PendingHTLCsForwardable {..} => { /* Hand upstream */ },
- Event::PendingHTLCsForwardable {..} => {
- //TODO: Handle upstream in some confused form so that upstream just knows
- //to call us somehow?
- },
Event::SendOpenChannel { ref node_id, ref msg } => {
+ log_trace!(self, "Handling SendOpenChannel event in peer_handler for node {} for channel {}",
+ log_pubkey!(node_id),
+ log_bytes!(msg.temporary_channel_id));
let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
//TODO: Drop the pending channel? (or just let it timeout, but that sucks)
});
continue;
},
Event::SendFundingCreated { ref node_id, ref msg } => {
+ log_trace!(self, "Handling SendFundingCreated event in peer_handler for node {} for channel {} (which becomes {})",
+ log_pubkey!(node_id),
+ log_bytes!(msg.temporary_channel_id),
+ log_funding_channel_id!(msg.funding_txid, msg.funding_output_index));
let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
//TODO: generate a DiscardFunding event indicating to the wallet that
//they should just throw away this funding transaction
continue;
},
Event::SendFundingLocked { ref node_id, ref msg, ref announcement_sigs } => {
+ log_trace!(self, "Handling SendFundingLocked event in peer_handler for node {}{} for channel {}",
+ log_pubkey!(node_id),
+ if announcement_sigs.is_some() { " with announcement sigs" } else { "" },
+ log_bytes!(msg.channel_id));
let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
//TODO: Do whatever we're gonna do for handling dropped messages
});
continue;
},
Event::SendHTLCs { ref node_id, ref msgs, ref commitment_msg } => {
+ log_trace!(self, "Handling SendHTLCs event in peer_handler for node {} with {} HTLCs for channel {}",
+ log_pubkey!(node_id),
+ msgs.len(),
+ log_bytes!(commitment_msg.channel_id));
let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
//TODO: Do whatever we're gonna do for handling dropped messages
});
continue;
},
Event::SendFulfillHTLC { ref node_id, ref msg, ref commitment_msg } => {
+ log_trace!(self, "Handling SendFulfillHTLCs event in peer_handler for node {} with payment_preimage {} for channel {}",
+ log_pubkey!(node_id),
+ log_bytes!(msg.payment_preimage),
+ log_bytes!(msg.channel_id));
let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
//TODO: Do whatever we're gonna do for handling dropped messages
});
continue;
},
Event::SendFailHTLC { ref node_id, ref msg, ref commitment_msg } => {
+ log_trace!(self, "Handling SendFailHTLCs event in peer_handler for node {} for HTLC ID {} for channel {}",
+ log_pubkey!(node_id),
+ msg.htlc_id,
+ log_bytes!(msg.channel_id));
let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
//TODO: Do whatever we're gonna do for handling dropped messages
});
continue;
},
Event::SendShutdown { ref node_id, ref msg } => {
+ log_trace!(self, "Handling Shutdown event in peer_handler for node {} for channel {}",
+ log_pubkey!(node_id),
+ log_bytes!(msg.channel_id));
let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
//TODO: Do whatever we're gonna do for handling dropped messages
});
continue;
},
Event::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
+ log_trace!(self, "Handling BroadcastChannelAnnouncement event in peer_handler for short channel id {}", msg.contents.short_channel_id);
if self.message_handler.route_handler.handle_channel_announcement(msg).is_ok() && self.message_handler.route_handler.handle_channel_update(update_msg).is_ok() {
let encoded_msg = encode_msg!(msg, 256);
let encoded_update_msg = encode_msg!(update_msg, 258);
continue;
},
Event::BroadcastChannelUpdate { ref msg } => {
+ log_trace!(self, "Handling BroadcastChannelUpdate event in peer_handler for short channel id {}", msg.contents.short_channel_id);
if self.message_handler.route_handler.handle_channel_update(msg).is_ok() {
let encoded_msg = encode_msg!(msg, 258);
}
continue;
},
- Event::DisconnectPeer { ref node_id, ref msg } => {
- if let Some(mut descriptor) = peers.node_id_to_descriptor.remove(node_id) {
- if let Some(mut peer) = peers.peers.remove(&descriptor) {
- if let Some(ref msg) = *msg {
+ Event::HandleError { ref node_id, ref action } => {
+ if let Some(ref action) = *action {
+ match *action {
+ msgs::ErrorAction::UpdateFailHTLC { ref msg } => {
+ log_trace!(self, "Handling UpdateFailHTLC HandleError event in peer_handler for node {} for HTLC ID {} for channel {}",
+ log_pubkey!(node_id),
+ msg.htlc_id,
+ log_bytes!(msg.channel_id));
+ let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
+ //TODO: Do whatever we're gonna do for handling dropped messages
+ });
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 131)));
+ Self::do_attempt_write_data(&mut descriptor, peer);
+
+ },
+ msgs::ErrorAction::DisconnectPeer { ref msg } => {
+ if let Some(mut descriptor) = peers.node_id_to_descriptor.remove(node_id) {
+ if let Some(mut peer) = peers.peers.remove(&descriptor) {
+ if let Some(ref msg) = *msg {
+ log_trace!(self, "Handling DisconnectPeer HandleError event in peer_handler for node {} with message {}",
+ log_pubkey!(node_id),
+ msg.data);
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 17)));
+ // This isn't guaranteed to work, but if there is enough free
+ // room in the send buffer, put the error message there...
+ Self::do_attempt_write_data(&mut descriptor, &mut peer);
+ } else {
+ log_trace!(self, "Handling DisconnectPeer HandleError event in peer_handler for node {} with no message", log_pubkey!(node_id));
+ }
+ }
+ descriptor.disconnect_socket();
+ self.message_handler.chan_handler.peer_disconnected(&node_id, false);
+ }
+ },
+ msgs::ErrorAction::IgnoreError => {
+ continue;
+ },
+ msgs::ErrorAction::SendErrorMessage { ref msg } => {
+ log_trace!(self, "Handling SendErrorMessage HandleError event in peer_handler for node {} with message {}",
+ log_pubkey!(node_id),
+ msg.data);
+ let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, {
+ //TODO: Do whatever we're gonna do for handling dropped messages
+ });
peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 17)));
- // This isn't guaranteed to work, but if there is enough free
- // room in the send buffer, put the error message there...
- Self::do_attempt_write_data(&mut descriptor, &mut peer);
- }
+ Self::do_attempt_write_data(&mut descriptor, peer);
+ },
}
- descriptor.disconnect_socket();
- self.message_handler.chan_handler.peer_disconnected(&node_id, false);
+ } else {
+ log_error!(self, "Got no-action HandleError Event in peer_handler for node {}, no such events should ever be generated!", log_pubkey!(node_id));
}
- },
+ continue;
+ }
}
upstream_events.push(event);
#[cfg(test)]
mod tests {
use ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor};
+ use ln::msgs;
use util::events;
use util::test_utils;
+ use util::logger::Logger;
use secp256k1::Secp256k1;
use secp256k1::key::{SecretKey, PublicKey};
let secp_ctx = Secp256k1::new();
let mut peers = Vec::new();
let mut rng = thread_rng();
+ let logger : Arc<Logger> = Arc::new(test_utils::TestLogger::new());
for _ in 0..peer_count {
let chan_handler = test_utils::TestChannelMessageHandler::new();
SecretKey::from_slice(&secp_ctx, &key_slice).unwrap()
};
let msg_handler = MessageHandler { chan_handler: Arc::new(chan_handler), route_handler: Arc::new(router) };
- let peer = PeerManager::new(msg_handler, node_id);
+ let peer = PeerManager::new(msg_handler, node_id, Arc::clone(&logger));
peers.push(peer);
}
fn establish_connection(peer_a: &PeerManager<FileDescriptor>, peer_b: &PeerManager<FileDescriptor>) {
let secp_ctx = Secp256k1::new();
- let their_id = PublicKey::from_secret_key(&secp_ctx, &peer_b.our_node_secret).unwrap();
+ let their_id = PublicKey::from_secret_key(&secp_ctx, &peer_b.our_node_secret);
let fd = FileDescriptor { fd: 1};
peer_a.new_inbound_connection(fd.clone()).unwrap();
peer_a.peers.lock().unwrap().node_id_to_descriptor.insert(their_id, fd.clone());
assert_eq!(peers[0].peers.lock().unwrap().peers.len(), 1);
let secp_ctx = Secp256k1::new();
- let their_id = PublicKey::from_secret_key(&secp_ctx, &peers[1].our_node_secret).unwrap();
+ let their_id = PublicKey::from_secret_key(&secp_ctx, &peers[1].our_node_secret);
let chan_handler = test_utils::TestChannelMessageHandler::new();
- chan_handler.pending_events.lock().unwrap().push(events::Event::DisconnectPeer {
+ chan_handler.pending_events.lock().unwrap().push(events::Event::HandleError {
node_id: their_id,
- msg: None,
+ action: Some(msgs::ErrorAction::DisconnectPeer { msg: None }),
});
assert_eq!(chan_handler.pending_events.lock().unwrap().len(), 1);
peers[0].message_handler.chan_handler = Arc::new(chan_handler);
projects / rust-lightning / blobdiff