//! Instead of actually servicing sockets ourselves we require that you implement the
//! SocketDescriptor interface and use that to receive actions which you should perform on the
//! socket, and call into PeerManager with bytes read from the socket. The PeerManager will then
-//! call into the provided message handlers (probably a ChannelManager and Router) with messages
+//! call into the provided message handlers (probably a ChannelManager and NetGraphmsgHandler) with messages
//! they should handle, and encoding/sending response messages.
-use secp256k1::key::{SecretKey,PublicKey};
+use bitcoin::secp256k1::key::{SecretKey,PublicKey};
use ln::features::InitFeatures;
use ln::msgs;
-use util::ser::{Writeable, Writer, Readable};
+use ln::msgs::ChannelMessageHandler;
+use ln::channelmanager::{SimpleArcChannelManager, SimpleRefChannelManager};
+use util::ser::{VecWriter, Writeable};
use ln::peer_channel_encryptor::{PeerChannelEncryptor,NextNoiseStep};
+use ln::wire;
+use ln::wire::Encode;
use util::byte_utils;
-use util::events::{MessageSendEvent};
+use util::events::{MessageSendEvent, MessageSendEventsProvider};
use util::logger::Logger;
use std::collections::{HashMap,hash_map,HashSet,LinkedList};
use std::sync::{Arc, Mutex};
use std::sync::atomic::{AtomicUsize, Ordering};
use std::{cmp,error,hash,fmt};
+use std::ops::Deref;
-use bitcoin_hashes::sha256::Hash as Sha256;
-use bitcoin_hashes::sha256::HashEngine as Sha256Engine;
-use bitcoin_hashes::{HashEngine, Hash};
+use bitcoin::hashes::sha256::Hash as Sha256;
+use bitcoin::hashes::sha256::HashEngine as Sha256Engine;
+use bitcoin::hashes::{HashEngine, Hash};
/// Provides references to trait impls which handle different types of messages.
-pub struct MessageHandler {
+pub struct MessageHandler<CM: Deref> where CM::Target: msgs::ChannelMessageHandler {
/// A message handler which handles messages specific to channels. Usually this is just a
/// ChannelManager object.
- pub chan_handler: Arc<msgs::ChannelMessageHandler>,
+ pub chan_handler: CM,
/// A message handler which handles messages updating our knowledge of the network channel
- /// graph. Usually this is just a Router object.
+ /// graph. Usually this is just a NetGraphMsgHandlerMonitor object.
pub route_handler: Arc<msgs::RoutingMessageHandler>,
}
/// For efficiency, Clone should be relatively cheap for this type.
///
/// You probably want to just extend an int and put a file descriptor in a struct and implement
-/// send_data. Note that if you are using a higher-level net library that may close() itself, be
-/// careful to ensure you don't have races whereby you might register a new connection with an fd
-/// the same as a yet-to-be-disconnect_event()-ed.
+/// send_data. Note that if you are using a higher-level net library that may call close() itself,
+/// be careful to ensure you don't have races whereby you might register a new connection with an
+/// fd which is the same as a previous one which has yet to be removed via
+/// PeerManager::socket_disconnected().
pub trait SocketDescriptor : cmp::Eq + hash::Hash + Clone {
/// Attempts to send some data from the given slice to the peer.
///
/// Returns the amount of data which was sent, possibly 0 if the socket has since disconnected.
- /// Note that in the disconnected case, a disconnect_event must still fire and further write
+ /// Note that in the disconnected case, socket_disconnected must still fire and further write
/// attempts may occur until that time.
///
/// If the returned size is smaller than data.len(), a write_available event must
/// *not* imply that further read events should be paused.
fn send_data(&mut self, data: &[u8], resume_read: bool) -> usize;
/// Disconnect the socket pointed to by this SocketDescriptor. Once this function returns, no
- /// more calls to write_event, read_event or disconnect_event may be made with this descriptor.
- /// No disconnect_event should be generated as a result of this call, though obviously races
- /// may occur whereby disconnect_socket is called after a call to disconnect_event but prior to
- /// that event completing.
+ /// more calls to write_buffer_space_avail, read_event or socket_disconnected may be made with
+ /// this descriptor. No socket_disconnected call should be generated as a result of this call,
+ /// though races may occur whereby disconnect_socket is called after a call to
+ /// socket_disconnected but prior to socket_disconnected returning.
fn disconnect_socket(&mut self);
}
/// Error for PeerManager errors. If you get one of these, you must disconnect the socket and
-/// generate no further read/write_events for the descriptor, only triggering a single
-/// disconnect_event (unless it was provided in response to a new_*_connection event, in which case
-/// no such disconnect_event must be generated and the socket be silently disconencted).
+/// generate no further read_event/write_buffer_space_avail calls for the descriptor, only
+/// triggering a single socket_disconnected call (unless it was provided in response to a
+/// new_*_connection event, in which case no such socket_disconnected() must be called and the
+/// socket silently disconencted).
pub struct PeerHandleError {
/// Used to indicate that we probably can't make any future connections to this peer, implying
/// we should go ahead and force-close any channels we have with it.
/// announcements/updates for the given channel_id then we will send it when we get to that
/// point and we shouldn't send it yet to avoid sending duplicate updates. If we've already
/// sent the old versions, we should send the update, and so return true here.
- fn should_forward_channel(&self, channel_id: u64)->bool{
+ fn should_forward_channel_announcement(&self, channel_id: u64)->bool{
match self.sync_status {
InitSyncTracker::NoSyncRequested => true,
InitSyncTracker::ChannelsSyncing(i) => i < channel_id,
InitSyncTracker::NodesSyncing(_) => true,
}
}
+
+ /// Similar to the above, but for node announcements indexed by node_id.
+ fn should_forward_node_announcement(&self, node_id: PublicKey) -> bool {
+ match self.sync_status {
+ InitSyncTracker::NoSyncRequested => true,
+ InitSyncTracker::ChannelsSyncing(_) => false,
+ InitSyncTracker::NodesSyncing(pk) => pk < node_id,
+ }
+ }
+}
+
+enum AnnouncementMsg {
+ ChanUpdate(msgs::ChannelUpdate),
+ ChanAnnounce(msgs::ChannelAnnouncement),
+ NodeAnnounce(msgs::NodeAnnouncement),
}
struct PeerHolder<Descriptor: SocketDescriptor> {
peers_needing_send: HashSet<Descriptor>,
/// Only add to this set when noise completes:
node_id_to_descriptor: HashMap<PublicKey, Descriptor>,
+ pending_broadcasts: Vec<(PublicKey, AnnouncementMsg)>,
}
#[cfg(not(any(target_pointer_width = "32", target_pointer_width = "64")))]
unsafe { mem::transmute::<*const usize, [u8; 4]>(panic!()); }
}
+/// SimpleArcPeerManager is useful when you need a PeerManager with a static lifetime, e.g.
+/// when you're using lightning-net-tokio (since tokio::spawn requires parameters with static
+/// lifetimes). Other times you can afford a reference, which is more efficient, in which case
+/// SimpleRefPeerManager is the more appropriate type. Defining these type aliases prevents
+/// issues such as overly long function definitions.
+pub type SimpleArcPeerManager<SD, M, T, F, L> = Arc<PeerManager<SD, SimpleArcChannelManager<M, T, F, L>, Arc<L>>>;
+
+/// SimpleRefPeerManager is a type alias for a PeerManager reference, and is the reference
+/// counterpart to the SimpleArcPeerManager type alias. Use this type by default when you don't
+/// need a PeerManager with a static lifetime. You'll need a static lifetime in cases such as
+/// usage of lightning-net-tokio (since tokio::spawn requires parameters with static lifetimes).
+/// But if this is not necessary, using a reference is more efficient. Defining these type aliases
+/// helps with issues such as long function definitions.
+pub type SimpleRefPeerManager<'a, 'b, 'c, 'd, 'e, SD, M, T, F, L> = PeerManager<SD, SimpleRefChannelManager<'a, 'b, 'c, 'd, 'e, M, T, F, L>, &'e L>;
+
/// A PeerManager manages a set of peers, described by their SocketDescriptor and marshalls socket
/// events into messages which it passes on to its MessageHandlers.
-pub struct PeerManager<Descriptor: SocketDescriptor> {
- message_handler: MessageHandler,
+///
+/// Rather than using a plain PeerManager, it is preferable to use either a SimpleArcPeerManager
+/// a SimpleRefPeerManager, for conciseness. See their documentation for more details, but
+/// essentially you should default to using a SimpleRefPeerManager, and use a
+/// SimpleArcPeerManager when you require a PeerManager with a static lifetime, such as when
+/// you're using lightning-net-tokio.
+pub struct PeerManager<Descriptor: SocketDescriptor, CM: Deref, L: Deref> where CM::Target: msgs::ChannelMessageHandler, L::Target: Logger {
+ message_handler: MessageHandler<CM>,
peers: Mutex<PeerHolder<Descriptor>>,
our_node_secret: SecretKey,
ephemeral_key_midstate: Sha256Engine,
peer_counter_low: AtomicUsize,
peer_counter_high: AtomicUsize,
- initial_syncs_sent: AtomicUsize,
- logger: Arc<Logger>,
-}
-
-struct VecWriter(Vec<u8>);
-impl Writer for VecWriter {
- fn write_all(&mut self, buf: &[u8]) -> Result<(), ::std::io::Error> {
- self.0.extend_from_slice(buf);
- Ok(())
- }
- fn size_hint(&mut self, size: usize) {
- self.0.reserve_exact(size);
- }
+ logger: L,
}
macro_rules! encode_msg {
- ($msg: expr, $msg_code: expr) => {{
- let mut msg = VecWriter(Vec::new());
- ($msg_code as u16).write(&mut msg).unwrap();
- $msg.write(&mut msg).unwrap();
- msg.0
+ ($msg: expr) => {{
+ let mut buffer = VecWriter(Vec::new());
+ wire::write($msg, &mut buffer).unwrap();
+ buffer.0
}}
}
-//TODO: Really should do something smarter for this
-const INITIAL_SYNCS_TO_SEND: usize = 5;
-
/// 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> {
+/// PeerIds may repeat, but only after socket_disconnected() has been called.
+impl<Descriptor: SocketDescriptor, CM: Deref, L: Deref> PeerManager<Descriptor, CM, L> where CM::Target: msgs::ChannelMessageHandler, L::Target: Logger {
/// Constructs a new PeerManager with the given message handlers and node_id secret key
/// ephemeral_random_data is used to derive per-connection ephemeral keys and must be
/// cryptographically secure random bytes.
- pub fn new(message_handler: MessageHandler, our_node_secret: SecretKey, ephemeral_random_data: &[u8; 32], logger: Arc<Logger>) -> PeerManager<Descriptor> {
+ pub fn new(message_handler: MessageHandler<CM>, our_node_secret: SecretKey, ephemeral_random_data: &[u8; 32], logger: L) -> PeerManager<Descriptor, CM, L> {
let mut ephemeral_key_midstate = Sha256::engine();
ephemeral_key_midstate.input(ephemeral_random_data);
PeerManager {
- message_handler: message_handler,
+ message_handler,
peers: Mutex::new(PeerHolder {
peers: HashMap::new(),
peers_needing_send: HashSet::new(),
- node_id_to_descriptor: HashMap::new()
+ node_id_to_descriptor: HashMap::new(),
+ pending_broadcasts: Vec::new(),
}),
- our_node_secret: our_node_secret,
+ our_node_secret,
ephemeral_key_midstate,
peer_counter_low: AtomicUsize::new(0),
peer_counter_high: AtomicUsize::new(0),
- initial_syncs_sent: AtomicUsize::new(0),
logger,
}
}
}
/// Indicates a new outbound connection has been established to a node with the given node_id.
- /// Note that if an Err is returned here you MUST NOT call disconnect_event for the new
+ /// Note that if an Err is returned here you MUST NOT call socket_disconnected for the new
/// descriptor but must disconnect the connection immediately.
///
/// Returns a small number of bytes to send to the remote node (currently always 50).
///
- /// Panics if descriptor is duplicative with some other descriptor which has not yet has a
- /// disconnect_event.
+ /// Panics if descriptor is duplicative with some other descriptor which has not yet had a
+ /// socket_disconnected().
pub fn new_outbound_connection(&self, their_node_id: PublicKey, descriptor: Descriptor) -> Result<Vec<u8>, PeerHandleError> {
let mut peer_encryptor = PeerChannelEncryptor::new_outbound(their_node_id.clone(), self.get_ephemeral_key());
let res = peer_encryptor.get_act_one().to_vec();
///
/// May refuse the connection by returning an Err, but will never write bytes to the remote end
/// (outbound connector always speaks first). Note that if an Err is returned here you MUST NOT
- /// call disconnect_event for the new descriptor but must disconnect the connection
+ /// call socket_disconnected for the new descriptor but must disconnect the connection
/// immediately.
///
- /// Panics if descriptor is duplicative with some other descriptor which has not yet has a
- /// disconnect_event.
+ /// Panics if descriptor is duplicative with some other descriptor which has not yet had
+ /// socket_disconnected called.
pub fn new_inbound_connection(&self, descriptor: Descriptor) -> Result<(), PeerHandleError> {
let peer_encryptor = PeerChannelEncryptor::new_inbound(&self.our_node_secret);
let pending_read_buffer = [0; 50].to_vec(); // Noise act one is 50 bytes
fn do_attempt_write_data(&self, descriptor: &mut Descriptor, peer: &mut Peer) {
macro_rules! encode_and_send_msg {
- ($msg: expr, $msg_code: expr) => {
+ ($msg: expr) => {
{
- log_trace!(self, "Encoding and sending sync update 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)[..]));
+ log_trace!(self.logger, "Encoding and sending sync update message of type {} to {}", $msg.type_id(), log_pubkey!(peer.their_node_id.unwrap()));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!($msg)[..]));
}
}
}
InitSyncTracker::NoSyncRequested => {},
InitSyncTracker::ChannelsSyncing(c) if c < 0xffff_ffff_ffff_ffff => {
let steps = ((MSG_BUFF_SIZE - peer.pending_outbound_buffer.len() + 2) / 3) as u8;
- let all_messages = self.message_handler.route_handler.get_next_channel_announcements(0, steps);
- for &(ref announce, ref update_a, ref update_b) in all_messages.iter() {
- encode_and_send_msg!(announce, 256);
- encode_and_send_msg!(update_a, 258);
- encode_and_send_msg!(update_b, 258);
+ let all_messages = self.message_handler.route_handler.get_next_channel_announcements(c, steps);
+ for &(ref announce, ref update_a_option, ref update_b_option) in all_messages.iter() {
+ encode_and_send_msg!(announce);
+ if let &Some(ref update_a) = update_a_option {
+ encode_and_send_msg!(update_a);
+ }
+ if let &Some(ref update_b) = update_b_option {
+ encode_and_send_msg!(update_b);
+ }
peer.sync_status = InitSyncTracker::ChannelsSyncing(announce.contents.short_channel_id + 1);
}
if all_messages.is_empty() || all_messages.len() != steps as usize {
let steps = (MSG_BUFF_SIZE - peer.pending_outbound_buffer.len()) as u8;
let all_messages = self.message_handler.route_handler.get_next_node_announcements(None, steps);
for msg in all_messages.iter() {
- encode_and_send_msg!(msg, 256);
+ encode_and_send_msg!(msg);
peer.sync_status = InitSyncTracker::NodesSyncing(msg.contents.node_id);
}
if all_messages.is_empty() || all_messages.len() != steps as usize {
let steps = (MSG_BUFF_SIZE - peer.pending_outbound_buffer.len()) as u8;
let all_messages = self.message_handler.route_handler.get_next_node_announcements(Some(&key), steps);
for msg in all_messages.iter() {
- encode_and_send_msg!(msg, 256);
+ encode_and_send_msg!(msg);
peer.sync_status = InitSyncTracker::NodesSyncing(msg.contents.node_id);
}
if all_messages.is_empty() || all_messages.len() != steps as usize {
///
/// Will most likely call send_data on the descriptor passed in (or the descriptor handed into
/// new_*\_connection) before returning. Thus, be very careful with reentrancy issues! The
- /// invariants around calling write_event in case a write did not fully complete must still
- /// hold - be ready to call write_event again if a write call generated here isn't sufficient!
- /// Panics if the descriptor was not previously registered in a new_\*_connection event.
- pub fn write_event(&self, descriptor: &mut Descriptor) -> Result<(), PeerHandleError> {
+ /// invariants around calling write_buffer_space_avail in case a write did not fully complete
+ /// must still hold - be ready to call write_buffer_space_avail again if a write call generated
+ /// here isn't sufficient! Panics if the descriptor was not previously registered in a
+ /// new_\*_connection event.
+ pub fn write_buffer_space_avail(&self, descriptor: &mut Descriptor) -> Result<(), PeerHandleError> {
let mut peers = self.peers.lock().unwrap();
match peers.peers.get_mut(descriptor) {
None => panic!("Descriptor for write_event is not already known to PeerManager"),
/// Thus, however, you almost certainly want to call process_events() after any read_event to
/// generate send_data calls to handle responses.
///
- /// If Ok(true) is returned, further read_events should not be triggered until a write_event on
- /// this file descriptor has resume_read set (preventing DoS issues in the send buffer).
+ /// If Ok(true) is returned, further read_events should not be triggered until a send_data call
+ /// on this file descriptor has resume_read set (preventing DoS issues in the send buffer).
///
/// Panics if the descriptor was not previously registered in a new_*_connection event.
- pub fn read_event(&self, peer_descriptor: &mut Descriptor, data: Vec<u8>) -> Result<bool, PeerHandleError> {
+ pub fn read_event(&self, peer_descriptor: &mut Descriptor, data: &[u8]) -> Result<bool, PeerHandleError> {
match self.do_read_event(peer_descriptor, data) {
Ok(res) => Ok(res),
Err(e) => {
}
}
- fn do_read_event(&self, peer_descriptor: &mut Descriptor, data: Vec<u8>) -> Result<bool, PeerHandleError> {
+ /// Append a message to a peer's pending outbound/write buffer, and update the map of peers needing sends accordingly.
+ fn enqueue_message<M: Encode + Writeable>(&self, peers_needing_send: &mut HashSet<Descriptor>, peer: &mut Peer, descriptor: Descriptor, message: &M) {
+ let mut buffer = VecWriter(Vec::new());
+ wire::write(message, &mut buffer).unwrap(); // crash if the write failed
+ let encoded_message = buffer.0;
+
+ log_trace!(self.logger, "Enqueueing message of type {} to {}", message.type_id(), log_pubkey!(peer.their_node_id.unwrap()));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encoded_message[..]));
+ peers_needing_send.insert(descriptor);
+ }
+
+ fn do_read_event(&self, peer_descriptor: &mut Descriptor, data: &[u8]) -> Result<bool, PeerHandleError> {
let pause_read = {
let mut peers_lock = self.peers.lock().unwrap();
let peers = &mut *peers_lock;
if peer.pending_read_buffer_pos == peer.pending_read_buffer.len() {
peer.pending_read_buffer_pos = 0;
- macro_rules! encode_and_send_msg {
- ($msg: expr, $msg_code: expr) => {
- {
- 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, $msg_code)[..]));
- peers.peers_needing_send.insert(peer_descriptor.clone());
- }
- }
- }
-
macro_rules! try_potential_handleerror {
($thing: expr) => {
match $thing {
match e.action {
msgs::ErrorAction::DisconnectPeer { msg: _ } => {
//TODO: Try to push msg
- log_trace!(self, "Got Err handling message, disconnecting peer because {}", e.err);
+ log_trace!(self.logger, "Got Err handling message, disconnecting peer because {}", e.err);
return Err(PeerHandleError{ no_connection_possible: false });
},
msgs::ErrorAction::IgnoreError => {
- log_trace!(self, "Got Err handling message, ignoring because {}", e.err);
+ log_trace!(self.logger, "Got Err handling message, ignoring because {}", e.err);
continue;
},
msgs::ErrorAction::SendErrorMessage { msg } => {
- log_trace!(self, "Got Err handling message, sending Error message because {}", e.err);
- encode_and_send_msg!(msg, 17);
- continue;
- },
- }
- }
- };
- }
- }
-
- macro_rules! try_potential_decodeerror {
- ($thing: expr) => {
- match $thing {
- Ok(x) => x,
- Err(e) => {
- match e {
- msgs::DecodeError::UnknownVersion => return Err(PeerHandleError{ no_connection_possible: false }),
- msgs::DecodeError::UnknownRequiredFeature => {
- log_debug!(self, "Got a channel/node announcement with an known required feature flag, you may want to update!");
- continue;
- },
- msgs::DecodeError::InvalidValue => {
- log_debug!(self, "Got an invalid value while deserializing message");
- return Err(PeerHandleError{ no_connection_possible: false });
- },
- msgs::DecodeError::ShortRead => {
- log_debug!(self, "Deserialization failed due to shortness of message");
- return Err(PeerHandleError{ no_connection_possible: false });
- },
- msgs::DecodeError::ExtraAddressesPerType => {
- log_debug!(self, "Error decoding message, ignoring due to lnd spec incompatibility. See https://github.com/lightningnetwork/lnd/issues/1407");
+ log_trace!(self.logger, "Got Err handling message, sending Error message because {}", e.err);
+ self.enqueue_message(&mut peers.peers_needing_send, peer, peer_descriptor.clone(), &msg);
continue;
},
- msgs::DecodeError::BadLengthDescriptor => return Err(PeerHandleError{ no_connection_possible: false }),
- msgs::DecodeError::Io(_) => return Err(PeerHandleError{ no_connection_possible: false }),
}
}
};
() => {
match peers.node_id_to_descriptor.entry(peer.their_node_id.unwrap()) {
hash_map::Entry::Occupied(_) => {
- log_trace!(self, "Got second connection with {}, closing", log_pubkey!(peer.their_node_id.unwrap()));
+ log_trace!(self.logger, "Got second connection with {}, closing", log_pubkey!(peer.their_node_id.unwrap()));
peer.their_node_id = None; // Unset so that we don't generate a peer_disconnected event
return Err(PeerHandleError{ no_connection_possible: false })
},
hash_map::Entry::Vacant(entry) => {
- log_trace!(self, "Finished noise handshake for connection with {}", log_pubkey!(peer.their_node_id.unwrap()));
+ log_trace!(self.logger, "Finished noise handshake for connection with {}", log_pubkey!(peer.their_node_id.unwrap()));
entry.insert(peer_descriptor.clone())
},
};
peer.their_node_id = Some(their_node_id);
insert_node_id!();
- let mut features = InitFeatures::supported();
- if self.initial_syncs_sent.load(Ordering::Acquire) < INITIAL_SYNCS_TO_SEND {
- self.initial_syncs_sent.fetch_add(1, Ordering::AcqRel);
- features.set_initial_routing_sync();
+ let mut features = InitFeatures::known();
+ if !self.message_handler.route_handler.should_request_full_sync(&peer.their_node_id.unwrap()) {
+ features.clear_initial_routing_sync();
}
- encode_and_send_msg!(msgs::Init {
- features,
- }, 16);
+
+ let resp = msgs::Init { features };
+ self.enqueue_message(&mut peers.peers_needing_send, peer, peer_descriptor.clone(), &resp);
},
NextNoiseStep::ActThree => {
let their_node_id = try_potential_handleerror!(peer.channel_encryptor.process_act_three(&peer.pending_read_buffer[..]));
peer.pending_read_buffer = [0; 18].to_vec();
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_features.is_none() {
- // Need an init message as first message
- log_trace!(self, "Peer {} sent non-Init first message", log_pubkey!(peer.their_node_id.unwrap()));
+ let mut reader = ::std::io::Cursor::new(&msg_data[..]);
+ let message_result = wire::read(&mut reader);
+ let message = match message_result {
+ Ok(x) => x,
+ Err(e) => {
+ match e {
+ msgs::DecodeError::UnknownVersion => return Err(PeerHandleError { no_connection_possible: false }),
+ msgs::DecodeError::UnknownRequiredFeature => {
+ log_debug!(self.logger, "Got a channel/node announcement with an known required feature flag, you may want to update!");
+ continue;
+ }
+ msgs::DecodeError::InvalidValue => {
+ log_debug!(self.logger, "Got an invalid value while deserializing message");
+ return Err(PeerHandleError { no_connection_possible: false });
+ }
+ msgs::DecodeError::ShortRead => {
+ log_debug!(self.logger, "Deserialization failed due to shortness of message");
+ return Err(PeerHandleError { no_connection_possible: false });
+ }
+ msgs::DecodeError::BadLengthDescriptor => return Err(PeerHandleError { no_connection_possible: false }),
+ msgs::DecodeError::Io(_) => return Err(PeerHandleError { no_connection_possible: false }),
+ }
+ }
+ };
+
+ log_trace!(self.logger, "Received message of type {} from {}", message.type_id(), log_pubkey!(peer.their_node_id.unwrap()));
+
+ // Need an Init as first message
+ if let wire::Message::Init(_) = message {
+ } else if peer.their_features.is_none() {
+ log_trace!(self.logger, "Peer {} sent non-Init first message", log_pubkey!(peer.their_node_id.unwrap()));
return Err(PeerHandleError{ no_connection_possible: false });
}
- let mut reader = ::std::io::Cursor::new(&msg_data[2..]);
- match msg_type {
- // Connection control:
- 16 => {
- let msg = try_potential_decodeerror!(msgs::Init::read(&mut reader));
+
+ match message {
+ // Setup and Control messages:
+ wire::Message::Init(msg) => {
if msg.features.requires_unknown_bits() {
- log_info!(self, "Peer global features required unknown version bits");
+ log_info!(self.logger, "Peer global features required unknown version bits");
return Err(PeerHandleError{ no_connection_possible: true });
}
if msg.features.requires_unknown_bits() {
- log_info!(self, "Peer local features required unknown version bits");
+ log_info!(self.logger, "Peer local features required unknown version bits");
return Err(PeerHandleError{ no_connection_possible: true });
}
if peer.their_features.is_some() {
return Err(PeerHandleError{ no_connection_possible: false });
}
- log_info!(self, "Received peer Init message: data_loss_protect: {}, initial_routing_sync: {}, upfront_shutdown_script: {}, unkown local flags: {}, unknown global flags: {}",
+ log_info!(self.logger, "Received peer Init message: data_loss_protect: {}, initial_routing_sync: {}, upfront_shutdown_script: {}, static_remote_key: {}, unkown local flags: {}, unknown global flags: {}",
if msg.features.supports_data_loss_protect() { "supported" } else { "not supported"},
if msg.features.initial_routing_sync() { "requested" } else { "not requested" },
if msg.features.supports_upfront_shutdown_script() { "supported" } else { "not supported"},
+ if msg.features.supports_static_remote_key() { "supported" } else { "not supported"},
if msg.features.supports_unknown_bits() { "present" } else { "none" },
if msg.features.supports_unknown_bits() { "present" } else { "none" });
peer.sync_status = InitSyncTracker::ChannelsSyncing(0);
peers.peers_needing_send.insert(peer_descriptor.clone());
}
+ if !msg.features.supports_static_remote_key() {
+ log_debug!(self.logger, "Peer {} does not support static remote key, disconnecting with no_connection_possible", log_pubkey!(peer.their_node_id.unwrap()));
+ return Err(PeerHandleError{ no_connection_possible: true });
+ }
if !peer.outbound {
- let mut features = InitFeatures::supported();
- if self.initial_syncs_sent.load(Ordering::Acquire) < INITIAL_SYNCS_TO_SEND {
- self.initial_syncs_sent.fetch_add(1, Ordering::AcqRel);
- features.set_initial_routing_sync();
+ let mut features = InitFeatures::known();
+ if !self.message_handler.route_handler.should_request_full_sync(&peer.their_node_id.unwrap()) {
+ features.clear_initial_routing_sync();
}
- encode_and_send_msg!(msgs::Init {
- features,
- }, 16);
+ let resp = msgs::Init { features };
+ self.enqueue_message(&mut peers.peers_needing_send, peer, peer_descriptor.clone(), &resp);
}
self.message_handler.chan_handler.peer_connected(&peer.their_node_id.unwrap(), &msg);
peer.their_features = Some(msg.features);
},
- 17 => {
- let msg = try_potential_decodeerror!(msgs::ErrorMessage::read(&mut reader));
+ wire::Message::Error(msg) => {
let mut data_is_printable = true;
for b in msg.data.bytes() {
if b < 32 || b > 126 {
}
if data_is_printable {
- log_debug!(self, "Got Err message from {}: {}", log_pubkey!(peer.their_node_id.unwrap()), msg.data);
+ log_debug!(self.logger, "Got Err message from {}: {}", log_pubkey!(peer.their_node_id.unwrap()), msg.data);
} else {
- log_debug!(self, "Got Err message from {} with non-ASCII error message", log_pubkey!(peer.their_node_id.unwrap()));
+ log_debug!(self.logger, "Got Err message from {} with non-ASCII error message", log_pubkey!(peer.their_node_id.unwrap()));
}
self.message_handler.chan_handler.handle_error(&peer.their_node_id.unwrap(), &msg);
if msg.channel_id == [0; 32] {
}
},
- 18 => {
- let msg = try_potential_decodeerror!(msgs::Ping::read(&mut reader));
+ wire::Message::Ping(msg) => {
if msg.ponglen < 65532 {
let resp = msgs::Pong { byteslen: msg.ponglen };
- encode_and_send_msg!(resp, 19);
+ self.enqueue_message(&mut peers.peers_needing_send, peer, peer_descriptor.clone(), &resp);
}
},
- 19 => {
+ wire::Message::Pong(_msg) => {
peer.awaiting_pong = false;
- try_potential_decodeerror!(msgs::Pong::read(&mut reader));
},
- // Channel control:
- 32 => {
- let msg = try_potential_decodeerror!(msgs::OpenChannel::read(&mut reader));
+
+ // Channel messages:
+ wire::Message::OpenChannel(msg) => {
self.message_handler.chan_handler.handle_open_channel(&peer.their_node_id.unwrap(), peer.their_features.clone().unwrap(), &msg);
},
- 33 => {
- let msg = try_potential_decodeerror!(msgs::AcceptChannel::read(&mut reader));
+ wire::Message::AcceptChannel(msg) => {
self.message_handler.chan_handler.handle_accept_channel(&peer.their_node_id.unwrap(), peer.their_features.clone().unwrap(), &msg);
},
- 34 => {
- let msg = try_potential_decodeerror!(msgs::FundingCreated::read(&mut reader));
+ wire::Message::FundingCreated(msg) => {
self.message_handler.chan_handler.handle_funding_created(&peer.their_node_id.unwrap(), &msg);
},
- 35 => {
- let msg = try_potential_decodeerror!(msgs::FundingSigned::read(&mut reader));
+ wire::Message::FundingSigned(msg) => {
self.message_handler.chan_handler.handle_funding_signed(&peer.their_node_id.unwrap(), &msg);
},
- 36 => {
- let msg = try_potential_decodeerror!(msgs::FundingLocked::read(&mut reader));
+ wire::Message::FundingLocked(msg) => {
self.message_handler.chan_handler.handle_funding_locked(&peer.their_node_id.unwrap(), &msg);
},
- 38 => {
- let msg = try_potential_decodeerror!(msgs::Shutdown::read(&mut reader));
+ wire::Message::Shutdown(msg) => {
self.message_handler.chan_handler.handle_shutdown(&peer.their_node_id.unwrap(), &msg);
},
- 39 => {
- let msg = try_potential_decodeerror!(msgs::ClosingSigned::read(&mut reader));
+ wire::Message::ClosingSigned(msg) => {
self.message_handler.chan_handler.handle_closing_signed(&peer.their_node_id.unwrap(), &msg);
},
- 128 => {
- let msg = try_potential_decodeerror!(msgs::UpdateAddHTLC::read(&mut reader));
+ // Commitment messages:
+ wire::Message::UpdateAddHTLC(msg) => {
self.message_handler.chan_handler.handle_update_add_htlc(&peer.their_node_id.unwrap(), &msg);
},
- 130 => {
- let msg = try_potential_decodeerror!(msgs::UpdateFulfillHTLC::read(&mut reader));
+ wire::Message::UpdateFulfillHTLC(msg) => {
self.message_handler.chan_handler.handle_update_fulfill_htlc(&peer.their_node_id.unwrap(), &msg);
},
- 131 => {
- let msg = try_potential_decodeerror!(msgs::UpdateFailHTLC::read(&mut reader));
+ wire::Message::UpdateFailHTLC(msg) => {
self.message_handler.chan_handler.handle_update_fail_htlc(&peer.their_node_id.unwrap(), &msg);
},
- 135 => {
- let msg = try_potential_decodeerror!(msgs::UpdateFailMalformedHTLC::read(&mut reader));
+ wire::Message::UpdateFailMalformedHTLC(msg) => {
self.message_handler.chan_handler.handle_update_fail_malformed_htlc(&peer.their_node_id.unwrap(), &msg);
},
- 132 => {
- let msg = try_potential_decodeerror!(msgs::CommitmentSigned::read(&mut reader));
+ wire::Message::CommitmentSigned(msg) => {
self.message_handler.chan_handler.handle_commitment_signed(&peer.their_node_id.unwrap(), &msg);
},
- 133 => {
- let msg = try_potential_decodeerror!(msgs::RevokeAndACK::read(&mut reader));
+ wire::Message::RevokeAndACK(msg) => {
self.message_handler.chan_handler.handle_revoke_and_ack(&peer.their_node_id.unwrap(), &msg);
},
- 134 => {
- let msg = try_potential_decodeerror!(msgs::UpdateFee::read(&mut reader));
+ wire::Message::UpdateFee(msg) => {
self.message_handler.chan_handler.handle_update_fee(&peer.their_node_id.unwrap(), &msg);
},
- 136 => {
- let msg = try_potential_decodeerror!(msgs::ChannelReestablish::read(&mut reader));
+ wire::Message::ChannelReestablish(msg) => {
self.message_handler.chan_handler.handle_channel_reestablish(&peer.their_node_id.unwrap(), &msg);
},
- // Routing control:
- 259 => {
- let msg = try_potential_decodeerror!(msgs::AnnouncementSignatures::read(&mut reader));
+ // Routing messages:
+ wire::Message::AnnouncementSignatures(msg) => {
self.message_handler.chan_handler.handle_announcement_signatures(&peer.their_node_id.unwrap(), &msg);
},
- 256 => {
- let msg = try_potential_decodeerror!(msgs::ChannelAnnouncement::read(&mut reader));
+ wire::Message::ChannelAnnouncement(msg) => {
let should_forward = try_potential_handleerror!(self.message_handler.route_handler.handle_channel_announcement(&msg));
if should_forward {
- // TODO: forward msg along to all our other peers!
+ peers.pending_broadcasts.push((peer.their_node_id.unwrap().clone(), AnnouncementMsg::ChanAnnounce(msg)));
}
},
- 257 => {
- let msg = try_potential_decodeerror!(msgs::NodeAnnouncement::read(&mut reader));
+ wire::Message::NodeAnnouncement(msg) => {
let should_forward = try_potential_handleerror!(self.message_handler.route_handler.handle_node_announcement(&msg));
if should_forward {
- // TODO: forward msg along to all our other peers!
+ peers.pending_broadcasts.push((peer.their_node_id.unwrap().clone(), AnnouncementMsg::NodeAnnounce(msg)));
}
},
- 258 => {
- let msg = try_potential_decodeerror!(msgs::ChannelUpdate::read(&mut reader));
+ wire::Message::ChannelUpdate(msg) => {
let should_forward = try_potential_handleerror!(self.message_handler.route_handler.handle_channel_update(&msg));
if should_forward {
- // TODO: forward msg along to all our other peers!
+ peers.pending_broadcasts.push((peer.their_node_id.unwrap().clone(), AnnouncementMsg::ChanUpdate(msg)));
}
},
- _ => {
- if (msg_type & 1) == 0 {
- return Err(PeerHandleError{ no_connection_possible: true });
- }
+
+ // Unknown messages:
+ wire::Message::Unknown(msg_type) if msg_type.is_even() => {
+ log_debug!(self.logger, "Received unknown even message of type {}, disconnecting peer!", msg_type);
+ // Fail the channel if message is an even, unknown type as per BOLT #1.
+ return Err(PeerHandleError{ no_connection_possible: true });
+ },
+ wire::Message::Unknown(msg_type) => {
+ log_trace!(self.logger, "Received unknown odd message of type {}, ignoring", msg_type);
},
}
}
let mut events_generated = self.message_handler.chan_handler.get_and_clear_pending_msg_events();
let mut peers_lock = self.peers.lock().unwrap();
let peers = &mut *peers_lock;
+
+ macro_rules! broadcast_msgs {
+ ({ $($except_check: stmt), * }, { $($encoded_msg: expr), * }) => { {
+ for (ref descriptor, ref mut peer) in peers.peers.iter_mut() {
+ if !peer.channel_encryptor.is_ready_for_encryption() || peer.their_features.is_none() {
+ continue
+ }
+ match peer.their_node_id {
+ None => continue,
+ Some(their_node_id) => {
+ $(
+ if { $except_check }(&peer, their_node_id) { continue }
+ )*
+ }
+ }
+ $(peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&$encoded_msg));)*
+ self.do_attempt_write_data(&mut (*descriptor).clone(), peer);
+ }
+ } }
+ }
+
+ for (from_node_id, broadcast) in peers.pending_broadcasts.drain(..) {
+ match broadcast {
+ AnnouncementMsg::ChanUpdate(msg) => {
+ let encoded_msg = encode_msg!(&msg);
+ broadcast_msgs!({ |peer: & &mut Peer, _| !peer.should_forward_channel_announcement(msg.contents.short_channel_id),
+ |_, their_node_id| their_node_id == from_node_id },
+ { encoded_msg });
+ },
+ AnnouncementMsg::ChanAnnounce(msg) => {
+ let encoded_msg = encode_msg!(&msg);
+ broadcast_msgs!({ |peer: & &mut Peer, _| !peer.should_forward_channel_announcement(msg.contents.short_channel_id),
+ |_, their_node_id| their_node_id == msg.contents.node_id_1,
+ |_, their_node_id| their_node_id == msg.contents.node_id_2,
+ |_, their_node_id| their_node_id == from_node_id },
+ { encoded_msg });
+ },
+ AnnouncementMsg::NodeAnnounce(msg) => {
+ let encoded_msg = encode_msg!(&msg);
+
+ broadcast_msgs!({ |peer: & &mut Peer, _| !peer.should_forward_node_announcement(msg.contents.node_id),
+ |_, their_node_id| their_node_id == msg.contents.node_id,
+ |_, their_node_id| their_node_id == from_node_id },
+ { encoded_msg });
+ }
+ }
+ }
+
for event in events_generated.drain(..) {
macro_rules! get_peer_for_forwarding {
($node_id: expr, $handle_no_such_peer: block) => {
}
match event {
MessageSendEvent::SendAcceptChannel { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendAcceptChannel event in peer_handler for node {} for channel {}",
+ log_trace!(self.logger, "Handling SendAcceptChannel 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)
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 33)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendOpenChannel { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendOpenChannel event in peer_handler for node {} for channel {}",
+ log_trace!(self.logger, "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)
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 32)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendFundingCreated { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendFundingCreated event in peer_handler for node {} for channel {} (which becomes {})",
+ log_trace!(self.logger, "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));
//TODO: generate a DiscardFunding event indicating to the wallet that
//they should just throw away this funding transaction
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 34)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendFundingSigned { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendFundingSigned event in peer_handler for node {} for channel {}",
+ log_trace!(self.logger, "Handling SendFundingSigned 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: generate a DiscardFunding event indicating to the wallet that
//they should just throw away this funding transaction
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 35)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendFundingLocked { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendFundingLocked event in peer_handler for node {} for channel {}",
+ log_trace!(self.logger, "Handling SendFundingLocked 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
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 36)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendAnnouncementSignatures { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendAnnouncementSignatures event in peer_handler for node {} for channel {})",
+ log_trace!(self.logger, "Handling SendAnnouncementSignatures 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: generate a DiscardFunding event indicating to the wallet that
//they should just throw away this funding transaction
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 259)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
- log_trace!(self, "Handling UpdateHTLCs event in peer_handler for node {} with {} adds, {} fulfills, {} fails for channel {}",
+ log_trace!(self.logger, "Handling UpdateHTLCs event in peer_handler for node {} with {} adds, {} fulfills, {} fails for channel {}",
log_pubkey!(node_id),
update_add_htlcs.len(),
update_fulfill_htlcs.len(),
//TODO: Do whatever we're gonna do for handling dropped messages
});
for msg in update_add_htlcs {
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 128)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
}
for msg in update_fulfill_htlcs {
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 130)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
}
for msg in update_fail_htlcs {
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 131)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
}
for msg in update_fail_malformed_htlcs {
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 135)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
}
if let &Some(ref msg) = update_fee {
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 134)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
}
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(commitment_signed, 132)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(commitment_signed)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendRevokeAndACK { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendRevokeAndACK event in peer_handler for node {} for channel {}",
+ log_trace!(self.logger, "Handling SendRevokeAndACK 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
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 133)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendClosingSigned { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendClosingSigned event in peer_handler for node {} for channel {}",
+ log_trace!(self.logger, "Handling SendClosingSigned 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
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 39)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendShutdown { ref node_id, ref msg } => {
- log_trace!(self, "Handling Shutdown event in peer_handler for node {} for channel {}",
+ log_trace!(self.logger, "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
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 38)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } => {
- log_trace!(self, "Handling SendChannelReestablish event in peer_handler for node {} for channel {}",
+ log_trace!(self.logger, "Handling SendChannelReestablish 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
});
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 136)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
MessageSendEvent::BroadcastChannelAnnouncement { ref msg, ref update_msg } => {
- log_trace!(self, "Handling BroadcastChannelAnnouncement event in peer_handler for short channel id {}", msg.contents.short_channel_id);
+ log_trace!(self.logger, "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);
-
- for (ref descriptor, ref mut peer) in peers.peers.iter_mut() {
- if !peer.channel_encryptor.is_ready_for_encryption() || peer.their_features.is_none() ||
- !peer.should_forward_channel(msg.contents.short_channel_id) {
- continue
- }
- match peer.their_node_id {
- None => continue,
- Some(their_node_id) => {
- if their_node_id == msg.contents.node_id_1 || their_node_id == msg.contents.node_id_2 {
- continue
- }
- }
- }
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encoded_msg[..]));
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encoded_update_msg[..]));
- self.do_attempt_write_data(&mut (*descriptor).clone(), peer);
- }
+ let encoded_msg = encode_msg!(msg);
+ let encoded_update_msg = encode_msg!(update_msg);
+ broadcast_msgs!({ |peer: & &mut Peer, _| !peer.should_forward_channel_announcement(msg.contents.short_channel_id),
+ |_, their_node_id| their_node_id == msg.contents.node_id_1,
+ |_, their_node_id| their_node_id == msg.contents.node_id_2 },
+ { encoded_msg, encoded_update_msg });
+ }
+ },
+ MessageSendEvent::BroadcastNodeAnnouncement { ref msg } => {
+ log_trace!(self.logger, "Handling BroadcastNodeAnnouncement event in peer_handler");
+ if self.message_handler.route_handler.handle_node_announcement(msg).is_ok() {
+ let encoded_msg = encode_msg!(msg);
+
+ broadcast_msgs!({ |peer: & &mut Peer, _| !peer.should_forward_node_announcement(msg.contents.node_id),
+ |_, their_node_id| their_node_id == msg.contents.node_id },
+ { encoded_msg });
}
},
MessageSendEvent::BroadcastChannelUpdate { ref msg } => {
- log_trace!(self, "Handling BroadcastChannelUpdate event in peer_handler for short channel id {}", msg.contents.short_channel_id);
+ log_trace!(self.logger, "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);
+ let encoded_msg = encode_msg!(msg);
- for (ref descriptor, ref mut peer) in peers.peers.iter_mut() {
- if !peer.channel_encryptor.is_ready_for_encryption() || peer.their_features.is_none() ||
- !peer.should_forward_channel(msg.contents.short_channel_id) {
- continue
- }
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encoded_msg[..]));
- self.do_attempt_write_data(&mut (*descriptor).clone(), peer);
- }
+ broadcast_msgs!({ |peer: & &mut Peer, _| !peer.should_forward_channel_announcement(msg.contents.short_channel_id) },
+ { encoded_msg });
}
},
MessageSendEvent::PaymentFailureNetworkUpdate { ref update } => {
peers.peers_needing_send.remove(&descriptor);
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_trace!(self.logger, "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)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
// 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));
+ log_trace!(self.logger, "Handling DisconnectPeer HandleError event in peer_handler for node {} with no message", log_pubkey!(node_id));
}
}
descriptor.disconnect_socket();
},
msgs::ErrorAction::IgnoreError => {},
msgs::ErrorAction::SendErrorMessage { ref msg } => {
- log_trace!(self, "Handling SendErrorMessage HandleError event in peer_handler for node {} with message {}",
+ log_trace!(self.logger, "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)));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg)));
self.do_attempt_write_data(&mut descriptor, peer);
},
}
/// Indicates that the given socket descriptor's connection is now closed.
///
- /// This must be called even if a PeerHandleError was given for a read_event or write_event,
- /// but must NOT be called if a PeerHandleError was provided out of a new_\*\_connection event!
+ /// This must only be called if the socket has been disconnected by the peer or your own
+ /// decision to disconnect it and must NOT be called in any case where other parts of this
+ /// library (eg PeerHandleError, explicit disconnect_socket calls) instruct you to disconnect
+ /// the peer.
///
/// Panics if the descriptor was not previously registered in a successful new_*_connection event.
- pub fn disconnect_event(&self, descriptor: &Descriptor) {
+ pub fn socket_disconnected(&self, descriptor: &Descriptor) {
self.disconnect_event_internal(descriptor, false);
}
let peers_needing_send = &mut peers.peers_needing_send;
let node_id_to_descriptor = &mut peers.node_id_to_descriptor;
let peers = &mut peers.peers;
+ let mut descriptors_needing_disconnect = Vec::new();
peers.retain(|descriptor, peer| {
- if peer.awaiting_pong == true {
+ if peer.awaiting_pong {
peers_needing_send.remove(descriptor);
+ descriptors_needing_disconnect.push(descriptor.clone());
match peer.their_node_id {
Some(node_id) => {
+ log_trace!(self.logger, "Disconnecting peer with id {} due to ping timeout", node_id);
node_id_to_descriptor.remove(&node_id);
- self.message_handler.chan_handler.peer_disconnected(&node_id, true);
+ self.message_handler.chan_handler.peer_disconnected(&node_id, false);
+ }
+ None => {
+ // This can't actually happen as we should have hit
+ // is_ready_for_encryption() previously on this same peer.
+ unreachable!();
},
- None => {}
}
+ return false;
+ }
+
+ if !peer.channel_encryptor.is_ready_for_encryption() {
+ // The peer needs to complete its handshake before we can exchange messages
+ return true;
}
let ping = msgs::Ping {
ponglen: 0,
byteslen: 64,
};
- peer.pending_outbound_buffer.push_back(encode_msg!(ping, 18));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(&ping)));
+
let mut descriptor_clone = descriptor.clone();
self.do_attempt_write_data(&mut descriptor_clone, peer);
- if peer.awaiting_pong {
- false // Drop the peer
- } else {
- peer.awaiting_pong = true;
- true
- }
+ peer.awaiting_pong = true;
+ true
});
+
+ for mut descriptor in descriptors_needing_disconnect.drain(..) {
+ descriptor.disconnect_socket();
+ }
}
}
}
#[cfg(test)]
mod tests {
+ use bitcoin::secp256k1::Signature;
+ use bitcoin::BitcoinHash;
+ use bitcoin::network::constants::Network;
+ use bitcoin::blockdata::constants::genesis_block;
use ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor};
use ln::msgs;
+ use ln::features::ChannelFeatures;
use util::events;
use util::test_utils;
- use util::logger::Logger;
- use secp256k1::Secp256k1;
- use secp256k1::key::{SecretKey, PublicKey};
+ use bitcoin::secp256k1::Secp256k1;
+ use bitcoin::secp256k1::key::{SecretKey, PublicKey};
use rand::{thread_rng, Rng};
- use std::sync::{Arc};
+ use std;
+ use std::cmp::min;
+ use std::sync::{Arc, Mutex};
+ use std::sync::atomic::{AtomicUsize, Ordering};
- #[derive(PartialEq, Eq, Clone, Hash)]
+ #[derive(Clone)]
struct FileDescriptor {
fd: u16,
+ outbound_data: Arc<Mutex<Vec<u8>>>,
+ }
+ impl PartialEq for FileDescriptor {
+ fn eq(&self, other: &Self) -> bool {
+ self.fd == other.fd
+ }
+ }
+ impl Eq for FileDescriptor { }
+ impl std::hash::Hash for FileDescriptor {
+ fn hash<H: std::hash::Hasher>(&self, hasher: &mut H) {
+ self.fd.hash(hasher)
+ }
}
impl SocketDescriptor for FileDescriptor {
fn send_data(&mut self, data: &[u8], _resume_read: bool) -> usize {
+ self.outbound_data.lock().unwrap().extend_from_slice(data);
data.len()
}
fn disconnect_socket(&mut self) {}
}
- fn create_network(peer_count: usize) -> Vec<PeerManager<FileDescriptor>> {
+ struct PeerManagerCfg {
+ chan_handler: test_utils::TestChannelMessageHandler,
+ logger: test_utils::TestLogger,
+ }
+
+ fn create_peermgr_cfgs(peer_count: usize) -> Vec<PeerManagerCfg> {
+ let mut cfgs = Vec::new();
+ for _ in 0..peer_count {
+ let chan_handler = test_utils::TestChannelMessageHandler::new();
+ let logger = test_utils::TestLogger::new();
+ cfgs.push(
+ PeerManagerCfg{
+ chan_handler,
+ logger,
+ }
+ );
+ }
+
+ cfgs
+ }
+
+ fn create_network<'a>(peer_count: usize, cfgs: &'a Vec<PeerManagerCfg>, routing_handlers: Option<&'a Vec<Arc<msgs::RoutingMessageHandler>>>) -> Vec<PeerManager<FileDescriptor, &'a test_utils::TestChannelMessageHandler, &'a test_utils::TestLogger>> {
let mut peers = Vec::new();
let mut rng = thread_rng();
- let logger : Arc<Logger> = Arc::new(test_utils::TestLogger::new());
let mut ephemeral_bytes = [0; 32];
rng.fill_bytes(&mut ephemeral_bytes);
- for _ in 0..peer_count {
- let chan_handler = test_utils::TestChannelMessageHandler::new();
- let router = test_utils::TestRoutingMessageHandler::new();
+ for i in 0..peer_count {
+ let router = if let Some(routers) = routing_handlers { routers[i].clone() } else {
+ Arc::new(test_utils::TestRoutingMessageHandler::new())
+ };
let node_id = {
let mut key_slice = [0;32];
rng.fill_bytes(&mut key_slice);
SecretKey::from_slice(&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, &ephemeral_bytes, Arc::clone(&logger));
+ let msg_handler = MessageHandler { chan_handler: &cfgs[i].chan_handler, route_handler: router };
+ let peer = PeerManager::new(msg_handler, node_id, &ephemeral_bytes, &cfgs[i].logger);
peers.push(peer);
}
peers
}
- fn establish_connection(peer_a: &PeerManager<FileDescriptor>, peer_b: &PeerManager<FileDescriptor>) {
+ fn establish_connection<'a>(peer_a: &PeerManager<FileDescriptor, &'a test_utils::TestChannelMessageHandler, &'a test_utils::TestLogger>, peer_b: &PeerManager<FileDescriptor, &'a test_utils::TestChannelMessageHandler, &'a test_utils::TestLogger>) -> (FileDescriptor, FileDescriptor) {
let secp_ctx = Secp256k1::new();
- 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());
+ let a_id = PublicKey::from_secret_key(&secp_ctx, &peer_a.our_node_secret);
+ let mut fd_a = FileDescriptor { fd: 1, outbound_data: Arc::new(Mutex::new(Vec::new())) };
+ let mut fd_b = FileDescriptor { fd: 1, outbound_data: Arc::new(Mutex::new(Vec::new())) };
+ let initial_data = peer_b.new_outbound_connection(a_id, fd_b.clone()).unwrap();
+ peer_a.new_inbound_connection(fd_a.clone()).unwrap();
+ assert_eq!(peer_a.read_event(&mut fd_a, &initial_data).unwrap(), false);
+ assert_eq!(peer_b.read_event(&mut fd_b, &fd_a.outbound_data.lock().unwrap().split_off(0)).unwrap(), false);
+ assert_eq!(peer_a.read_event(&mut fd_a, &fd_b.outbound_data.lock().unwrap().split_off(0)).unwrap(), false);
+ (fd_a.clone(), fd_b.clone())
+ }
+
+ fn establish_connection_and_read_events<'a>(peer_a: &PeerManager<FileDescriptor, &'a test_utils::TestChannelMessageHandler, &'a test_utils::TestLogger>, peer_b: &PeerManager<FileDescriptor, &'a test_utils::TestChannelMessageHandler, &'a test_utils::TestLogger>) -> (FileDescriptor, FileDescriptor) {
+ let (mut fd_a, mut fd_b) = establish_connection(peer_a, peer_b);
+ assert_eq!(peer_b.read_event(&mut fd_b, &fd_a.outbound_data.lock().unwrap().split_off(0)).unwrap(), false);
+ assert_eq!(peer_a.read_event(&mut fd_a, &fd_b.outbound_data.lock().unwrap().split_off(0)).unwrap(), false);
+ (fd_a.clone(), fd_b.clone())
}
#[test]
fn test_disconnect_peer() {
// Simple test which builds a network of PeerManager, connects and brings them to NoiseState::Finished and
// push a DisconnectPeer event to remove the node flagged by id
- let mut peers = create_network(2);
+ let cfgs = create_peermgr_cfgs(2);
+ let chan_handler = test_utils::TestChannelMessageHandler::new();
+ let mut peers = create_network(2, &cfgs, None);
establish_connection(&peers[0], &peers[1]);
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);
- let chan_handler = test_utils::TestChannelMessageHandler::new();
chan_handler.pending_events.lock().unwrap().push(events::MessageSendEvent::HandleError {
node_id: their_id,
action: 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);
+ peers[0].message_handler.chan_handler = &chan_handler;
peers[0].process_events();
assert_eq!(peers[0].peers.lock().unwrap().peers.len(), 0);
}
+
#[test]
- fn test_timer_tick_occured(){
+ fn test_timer_tick_occurred() {
// Create peers, a vector of two peer managers, perform initial set up and check that peers[0] has one Peer.
- let peers = create_network(2);
+ let cfgs = create_peermgr_cfgs(2);
+ let peers = create_network(2, &cfgs, None);
establish_connection(&peers[0], &peers[1]);
assert_eq!(peers[0].peers.lock().unwrap().peers.len(), 1);
peers[0].timer_tick_occured();
assert_eq!(peers[0].peers.lock().unwrap().peers.len(), 0);
}
+
+ pub struct TestRoutingMessageHandler {
+ pub chan_upds_recvd: AtomicUsize,
+ pub chan_anns_recvd: AtomicUsize,
+ pub chan_anns_sent: AtomicUsize,
+ }
+
+ impl TestRoutingMessageHandler {
+ pub fn new() -> Self {
+ TestRoutingMessageHandler {
+ chan_upds_recvd: AtomicUsize::new(0),
+ chan_anns_recvd: AtomicUsize::new(0),
+ chan_anns_sent: AtomicUsize::new(0),
+ }
+ }
+
+ }
+ impl msgs::RoutingMessageHandler for TestRoutingMessageHandler {
+ fn handle_node_announcement(&self, _msg: &msgs::NodeAnnouncement) -> Result<bool, msgs::LightningError> {
+ Err(msgs::LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
+ }
+ fn handle_channel_announcement(&self, _msg: &msgs::ChannelAnnouncement) -> Result<bool, msgs::LightningError> {
+ self.chan_anns_recvd.fetch_add(1, Ordering::AcqRel);
+ Err(msgs::LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
+ }
+ fn handle_channel_update(&self, _msg: &msgs::ChannelUpdate) -> Result<bool, msgs::LightningError> {
+ self.chan_upds_recvd.fetch_add(1, Ordering::AcqRel);
+ Err(msgs::LightningError { err: "", action: msgs::ErrorAction::IgnoreError })
+ }
+ fn handle_htlc_fail_channel_update(&self, _update: &msgs::HTLCFailChannelUpdate) {}
+ fn get_next_channel_announcements(&self, starting_point: u64, batch_amount: u8) -> Vec<(msgs::ChannelAnnouncement, Option<msgs::ChannelUpdate>, Option<msgs::ChannelUpdate>)> {
+ let mut chan_anns = Vec::new();
+ const TOTAL_UPDS: u64 = 100;
+ let end: u64 = min(starting_point + batch_amount as u64, TOTAL_UPDS - self.chan_anns_sent.load(Ordering::Acquire) as u64);
+ for i in starting_point..end {
+ let chan_upd_1 = get_dummy_channel_update(i);
+ let chan_upd_2 = get_dummy_channel_update(i);
+ let chan_ann = get_dummy_channel_announcement(i);
+
+ chan_anns.push((chan_ann, Some(chan_upd_1), Some(chan_upd_2)));
+ }
+
+ self.chan_anns_sent.fetch_add(chan_anns.len(), Ordering::AcqRel);
+ chan_anns
+ }
+
+ fn get_next_node_announcements(&self, _starting_point: Option<&PublicKey>, _batch_amount: u8) -> Vec<msgs::NodeAnnouncement> {
+ Vec::new()
+ }
+
+ fn should_request_full_sync(&self, _node_id: &PublicKey) -> bool {
+ true
+ }
+ }
+
+ fn get_dummy_channel_announcement(short_chan_id: u64) -> msgs::ChannelAnnouncement {
+ use bitcoin::secp256k1::ffi::Signature as FFISignature;
+ let secp_ctx = Secp256k1::new();
+ let network = Network::Testnet;
+ let node_1_privkey = SecretKey::from_slice(&[42; 32]).unwrap();
+ let node_2_privkey = SecretKey::from_slice(&[41; 32]).unwrap();
+ let node_1_btckey = SecretKey::from_slice(&[40; 32]).unwrap();
+ let node_2_btckey = SecretKey::from_slice(&[39; 32]).unwrap();
+ let unsigned_ann = msgs::UnsignedChannelAnnouncement {
+ features: ChannelFeatures::known(),
+ chain_hash: genesis_block(network).header.bitcoin_hash(),
+ short_channel_id: short_chan_id,
+ node_id_1: PublicKey::from_secret_key(&secp_ctx, &node_1_privkey),
+ node_id_2: PublicKey::from_secret_key(&secp_ctx, &node_2_privkey),
+ bitcoin_key_1: PublicKey::from_secret_key(&secp_ctx, &node_1_btckey),
+ bitcoin_key_2: PublicKey::from_secret_key(&secp_ctx, &node_2_btckey),
+ excess_data: Vec::new(),
+ };
+
+ msgs::ChannelAnnouncement {
+ node_signature_1: Signature::from(FFISignature::new()),
+ node_signature_2: Signature::from(FFISignature::new()),
+ bitcoin_signature_1: Signature::from(FFISignature::new()),
+ bitcoin_signature_2: Signature::from(FFISignature::new()),
+ contents: unsigned_ann,
+ }
+ }
+
+ fn get_dummy_channel_update(short_chan_id: u64) -> msgs::ChannelUpdate {
+ use bitcoin::secp256k1::ffi::Signature as FFISignature;
+ let network = Network::Testnet;
+ msgs::ChannelUpdate {
+ signature: Signature::from(FFISignature::new()),
+ contents: msgs::UnsignedChannelUpdate {
+ chain_hash: genesis_block(network).header.bitcoin_hash(),
+ short_channel_id: short_chan_id,
+ timestamp: 0,
+ flags: 0,
+ cltv_expiry_delta: 0,
+ htlc_minimum_msat: 0,
+ fee_base_msat: 0,
+ fee_proportional_millionths: 0,
+ excess_data: vec![],
+ }
+ }
+ }
+
+ #[test]
+ fn test_do_attempt_write_data() {
+ // Create 2 peers with custom TestRoutingMessageHandlers and connect them.
+ let cfgs = create_peermgr_cfgs(2);
+ let mut routing_handlers: Vec<Arc<msgs::RoutingMessageHandler>> = Vec::new();
+ let mut routing_handlers_concrete: Vec<Arc<TestRoutingMessageHandler>> = Vec::new();
+ for _ in 0..2 {
+ let routing_handler = Arc::new(TestRoutingMessageHandler::new());
+ routing_handlers.push(routing_handler.clone());
+ routing_handlers_concrete.push(routing_handler.clone());
+ }
+ let peers = create_network(2, &cfgs, Some(&routing_handlers));
+
+ // By calling establish_connect, we trigger do_attempt_write_data between
+ // the peers. Previously this function would mistakenly enter an infinite loop
+ // when there were more channel messages available than could fit into a peer's
+ // buffer. This issue would now be detected by this test (because we use custom
+ // RoutingMessageHandlers that intentionally return more channel messages
+ // than can fit into a peer's buffer).
+ let (mut fd_a, mut fd_b) = establish_connection(&peers[0], &peers[1]);
+
+ // Make each peer to read the messages that the other peer just wrote to them.
+ peers[1].read_event(&mut fd_b, &fd_a.outbound_data.lock().unwrap().split_off(0)).unwrap();
+ peers[0].read_event(&mut fd_a, &fd_b.outbound_data.lock().unwrap().split_off(0)).unwrap();
+
+ // Check that each peer has received the expected number of channel updates and channel
+ // announcements.
+ assert_eq!(routing_handlers_concrete[0].clone().chan_upds_recvd.load(Ordering::Acquire), 100);
+ assert_eq!(routing_handlers_concrete[0].clone().chan_anns_recvd.load(Ordering::Acquire), 50);
+ assert_eq!(routing_handlers_concrete[1].clone().chan_upds_recvd.load(Ordering::Acquire), 100);
+ assert_eq!(routing_handlers_concrete[1].clone().chan_anns_recvd.load(Ordering::Acquire), 50);
+ }
+
+ #[test]
+ fn limit_initial_routing_sync_requests() {
+ // Inbound peer 0 requests initial_routing_sync, but outbound peer 1 does not.
+ {
+ let cfgs = create_peermgr_cfgs(2);
+ let routing_handlers: Vec<Arc<msgs::RoutingMessageHandler>> = vec![
+ Arc::new(test_utils::TestRoutingMessageHandler::new().set_request_full_sync()),
+ Arc::new(test_utils::TestRoutingMessageHandler::new()),
+ ];
+ let peers = create_network(2, &cfgs, Some(&routing_handlers));
+ let (fd_0_to_1, fd_1_to_0) = establish_connection_and_read_events(&peers[0], &peers[1]);
+
+ let peer_0 = peers[0].peers.lock().unwrap();
+ let peer_1 = peers[1].peers.lock().unwrap();
+
+ let peer_0_features = peer_1.peers.get(&fd_1_to_0).unwrap().their_features.as_ref();
+ let peer_1_features = peer_0.peers.get(&fd_0_to_1).unwrap().their_features.as_ref();
+
+ assert!(peer_0_features.unwrap().initial_routing_sync());
+ assert!(!peer_1_features.unwrap().initial_routing_sync());
+ }
+
+ // Outbound peer 1 requests initial_routing_sync, but inbound peer 0 does not.
+ {
+ let cfgs = create_peermgr_cfgs(2);
+ let routing_handlers: Vec<Arc<msgs::RoutingMessageHandler>> = vec![
+ Arc::new(test_utils::TestRoutingMessageHandler::new()),
+ Arc::new(test_utils::TestRoutingMessageHandler::new().set_request_full_sync()),
+ ];
+ let peers = create_network(2, &cfgs, Some(&routing_handlers));
+ let (fd_0_to_1, fd_1_to_0) = establish_connection_and_read_events(&peers[0], &peers[1]);
+
+ let peer_0 = peers[0].peers.lock().unwrap();
+ let peer_1 = peers[1].peers.lock().unwrap();
+
+ let peer_0_features = peer_1.peers.get(&fd_1_to_0).unwrap().their_features.as_ref();
+ let peer_1_features = peer_0.peers.get(&fd_0_to_1).unwrap().their_features.as_ref();
+
+ assert!(!peer_0_features.unwrap().initial_routing_sync());
+ assert!(peer_1_features.unwrap().initial_routing_sync());
+ }
+ }
}
projects / rust-lightning / blobdiff