use bitcoin::secp256k1::{self, Secp256k1, SecretKey, PublicKey};
-use ln::features::{InitFeatures, NodeFeatures};
-use ln::msgs;
-use ln::msgs::{ChannelMessageHandler, LightningError, NetAddress, OnionMessageHandler, RoutingMessageHandler};
-use ln::channelmanager::{SimpleArcChannelManager, SimpleRefChannelManager};
-use util::ser::{VecWriter, Writeable, Writer};
-use ln::peer_channel_encryptor::{PeerChannelEncryptor,NextNoiseStep};
-use ln::wire;
-use ln::wire::Encode;
-use routing::gossip::{NetworkGraph, P2PGossipSync};
-use util::atomic_counter::AtomicCounter;
-use util::crypto::sign;
-use util::events::{MessageSendEvent, MessageSendEventsProvider, OnionMessageProvider};
-use util::logger::Logger;
-
-use prelude::*;
-use io;
+use crate::ln::features::{InitFeatures, NodeFeatures};
+use crate::ln::msgs;
+use crate::ln::msgs::{ChannelMessageHandler, LightningError, NetAddress, OnionMessageHandler, RoutingMessageHandler};
+use crate::ln::channelmanager::{SimpleArcChannelManager, SimpleRefChannelManager};
+use crate::util::ser::{VecWriter, Writeable, Writer};
+use crate::ln::peer_channel_encryptor::{PeerChannelEncryptor,NextNoiseStep};
+use crate::ln::wire;
+use crate::ln::wire::Encode;
+use crate::onion_message::{CustomOnionMessageContents, CustomOnionMessageHandler, SimpleArcOnionMessenger, SimpleRefOnionMessenger};
+use crate::routing::gossip::{NetworkGraph, P2PGossipSync};
+use crate::util::atomic_counter::AtomicCounter;
+use crate::util::crypto::sign;
+use crate::util::events::{MessageSendEvent, MessageSendEventsProvider, OnionMessageProvider};
+use crate::util::logger::Logger;
+
+use crate::prelude::*;
+use crate::io;
use alloc::collections::LinkedList;
-use sync::{Arc, Mutex, MutexGuard, FairRwLock};
-use core::sync::atomic::{AtomicBool, AtomicU64, Ordering};
+use crate::sync::{Arc, Mutex, MutexGuard, FairRwLock};
+use core::sync::atomic::{AtomicBool, AtomicU32, Ordering};
use core::{cmp, hash, fmt, mem};
use core::ops::Deref;
use core::convert::Infallible;
fn get_next_channel_announcement(&self, _starting_point: u64) ->
Option<(msgs::ChannelAnnouncement, Option<msgs::ChannelUpdate>, Option<msgs::ChannelUpdate>)> { None }
fn get_next_node_announcement(&self, _starting_point: Option<&PublicKey>) -> Option<msgs::NodeAnnouncement> { None }
- fn peer_connected(&self, _their_node_id: &PublicKey, _init: &msgs::Init) {}
+ fn peer_connected(&self, _their_node_id: &PublicKey, _init: &msgs::Init) -> Result<(), ()> { Ok(()) }
fn handle_reply_channel_range(&self, _their_node_id: &PublicKey, _msg: msgs::ReplyChannelRange) -> Result<(), LightningError> { Ok(()) }
fn handle_reply_short_channel_ids_end(&self, _their_node_id: &PublicKey, _msg: msgs::ReplyShortChannelIdsEnd) -> Result<(), LightningError> { Ok(()) }
fn handle_query_channel_range(&self, _their_node_id: &PublicKey, _msg: msgs::QueryChannelRange) -> Result<(), LightningError> { Ok(()) }
fn handle_query_short_channel_ids(&self, _their_node_id: &PublicKey, _msg: msgs::QueryShortChannelIds) -> Result<(), LightningError> { Ok(()) }
+ fn provided_node_features(&self) -> NodeFeatures { NodeFeatures::empty() }
fn provided_init_features(&self, _their_node_id: &PublicKey) -> InitFeatures {
InitFeatures::empty()
}
}
impl OnionMessageHandler for IgnoringMessageHandler {
fn handle_onion_message(&self, _their_node_id: &PublicKey, _msg: &msgs::OnionMessage) {}
- fn peer_connected(&self, _their_node_id: &PublicKey, _init: &msgs::Init) {}
+ fn peer_connected(&self, _their_node_id: &PublicKey, _init: &msgs::Init) -> Result<(), ()> { Ok(()) }
fn peer_disconnected(&self, _their_node_id: &PublicKey, _no_connection_possible: bool) {}
+ fn provided_node_features(&self) -> NodeFeatures { NodeFeatures::empty() }
+ fn provided_init_features(&self, _their_node_id: &PublicKey) -> InitFeatures {
+ InitFeatures::empty()
+ }
+}
+impl CustomOnionMessageHandler for IgnoringMessageHandler {
+ type CustomMessage = Infallible;
+ fn handle_custom_message(&self, _msg: Infallible) {
+ // Since we always return `None` in the read the handle method should never be called.
+ unreachable!();
+ }
+ fn read_custom_message<R: io::Read>(&self, _msg_type: u64, _buffer: &mut R) -> Result<Option<Infallible>, msgs::DecodeError> where Self: Sized {
+ Ok(None)
+ }
+}
+
+impl CustomOnionMessageContents for Infallible {
+ fn tlv_type(&self) -> u64 { unreachable!(); }
}
+
impl Deref for IgnoringMessageHandler {
type Target = IgnoringMessageHandler;
fn deref(&self) -> &Self { self }
// msgs::ChannelUpdate does not contain the channel_id field, so we just drop them.
fn handle_channel_update(&self, _their_node_id: &PublicKey, _msg: &msgs::ChannelUpdate) {}
fn peer_disconnected(&self, _their_node_id: &PublicKey, _no_connection_possible: bool) {}
- fn peer_connected(&self, _their_node_id: &PublicKey, _msg: &msgs::Init) {}
+ fn peer_connected(&self, _their_node_id: &PublicKey, _init: &msgs::Init) -> Result<(), ()> { Ok(()) }
fn handle_error(&self, _their_node_id: &PublicKey, _msg: &msgs::ErrorMessage) {}
fn provided_node_features(&self) -> NodeFeatures { NodeFeatures::empty() }
fn provided_init_features(&self, _their_node_id: &PublicKey) -> InitFeatures {
- // Use our known channel feature set as peers may otherwise not be willing to talk to us at
- // all.
- InitFeatures::known_channel_features()
+ // Set a number of features which various nodes may require to talk to us. It's totally
+ // reasonable to indicate we "support" all kinds of channel features...we just reject all
+ // channels.
+ let mut features = InitFeatures::empty();
+ features.set_data_loss_protect_optional();
+ features.set_upfront_shutdown_script_optional();
+ features.set_variable_length_onion_optional();
+ features.set_static_remote_key_optional();
+ features.set_payment_secret_optional();
+ features.set_basic_mpp_optional();
+ features.set_wumbo_optional();
+ features.set_shutdown_any_segwit_optional();
+ features.set_channel_type_optional();
+ features.set_scid_privacy_optional();
+ features.set_zero_conf_optional();
+ features
}
}
impl Deref for ErroringMessageHandler {
pending_outbound_buffer: LinkedList<Vec<u8>>,
pending_outbound_buffer_first_msg_offset: usize,
- // Queue gossip broadcasts separately from `pending_outbound_buffer` so we can easily prioritize
- // channel messages over them.
+ /// Queue gossip broadcasts separately from `pending_outbound_buffer` so we can easily
+ /// prioritize channel messages over them.
+ ///
+ /// Note that these messages are *not* encrypted/MAC'd, and are only serialized.
gossip_broadcast_buffer: LinkedList<Vec<u8>>,
awaiting_write_event: bool,
/// SimpleRefPeerManager is the more appropriate type. Defining these type aliases prevents
/// issues such as overly long function definitions.
///
-/// (C-not exported) as Arcs don't make sense in bindings
-pub type SimpleArcPeerManager<SD, M, T, F, C, L> = PeerManager<SD, Arc<SimpleArcChannelManager<M, T, F, L>>, Arc<P2PGossipSync<Arc<NetworkGraph<Arc<L>>>, Arc<C>, Arc<L>>>, IgnoringMessageHandler, Arc<L>, Arc<IgnoringMessageHandler>>;
+/// (C-not exported) as `Arc`s don't make sense in bindings.
+pub type SimpleArcPeerManager<SD, M, T, F, C, L> = PeerManager<SD, Arc<SimpleArcChannelManager<M, T, F, L>>, Arc<P2PGossipSync<Arc<NetworkGraph<Arc<L>>>, Arc<C>, Arc<L>>>, Arc<SimpleArcOnionMessenger<L>>, Arc<L>, IgnoringMessageHandler>;
/// 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
/// But if this is not necessary, using a reference is more efficient. Defining these type aliases
/// helps with issues such as long function definitions.
///
-/// (C-not exported) as Arcs don't make sense in bindings
-pub type SimpleRefPeerManager<'a, 'b, 'c, 'd, 'e, 'f, 'g, 'h, SD, M, T, F, C, L> = PeerManager<SD, SimpleRefChannelManager<'a, 'b, 'c, 'd, 'e, M, T, F, L>, &'e P2PGossipSync<&'g NetworkGraph<&'f L>, &'h C, &'f L>, IgnoringMessageHandler, &'f L, IgnoringMessageHandler>;
+/// (C-not exported) as general type aliases don't make sense in bindings.
+pub type SimpleRefPeerManager<'a, 'b, 'c, 'd, 'e, 'f, 'g, 'h, 'i, 'j, 'k, SD, M, T, F, C, L> = PeerManager<SD, SimpleRefChannelManager<'a, 'b, 'c, 'd, 'e, M, T, F, L>, &'e P2PGossipSync<&'g NetworkGraph<&'f L>, &'h C, &'f L>, &'i SimpleRefOnionMessenger<'j, 'k, L>, &'f L, IgnoringMessageHandler>;
/// A PeerManager manages a set of peers, described by their [`SocketDescriptor`] and marshalls
/// socket events into messages which it passes on to its [`MessageHandler`].
/// Used to track the last value sent in a node_announcement "timestamp" field. We ensure this
/// value increases strictly since we don't assume access to a time source.
- last_node_announcement_serial: AtomicU64,
+ last_node_announcement_serial: AtomicU32,
our_node_secret: SecretKey,
ephemeral_key_midstate: Sha256Engine,
/// minute should suffice.
///
/// (C-not exported) as we can't export a PeerManager with a dummy route handler
- pub fn new_channel_only(channel_message_handler: CM, onion_message_handler: OM, our_node_secret: SecretKey, current_time: u64, ephemeral_random_data: &[u8; 32], logger: L) -> Self {
+ pub fn new_channel_only(channel_message_handler: CM, onion_message_handler: OM, our_node_secret: SecretKey, current_time: u32, ephemeral_random_data: &[u8; 32], logger: L) -> Self {
Self::new(MessageHandler {
chan_handler: channel_message_handler,
route_handler: IgnoringMessageHandler{},
/// cryptographically secure random bytes.
///
/// (C-not exported) as we can't export a PeerManager with a dummy channel handler
- pub fn new_routing_only(routing_message_handler: RM, our_node_secret: SecretKey, current_time: u64, ephemeral_random_data: &[u8; 32], logger: L) -> Self {
+ pub fn new_routing_only(routing_message_handler: RM, our_node_secret: SecretKey, current_time: u32, ephemeral_random_data: &[u8; 32], logger: L) -> Self {
Self::new(MessageHandler {
chan_handler: ErroringMessageHandler::new(),
route_handler: routing_message_handler,
/// incremented irregularly internally. In general it is best to simply use the current UNIX
/// timestamp, however if it is not available a persistent counter that increases once per
/// minute should suffice.
- pub fn new(message_handler: MessageHandler<CM, RM, OM>, our_node_secret: SecretKey, current_time: u64, ephemeral_random_data: &[u8; 32], logger: L, custom_message_handler: CMH) -> Self {
+ pub fn new(message_handler: MessageHandler<CM, RM, OM>, our_node_secret: SecretKey, current_time: u32, ephemeral_random_data: &[u8; 32], logger: L, custom_message_handler: CMH) -> Self {
let mut ephemeral_key_midstate = Sha256::engine();
ephemeral_key_midstate.input(ephemeral_random_data);
our_node_secret,
ephemeral_key_midstate,
peer_counter: AtomicCounter::new(),
- last_node_announcement_serial: AtomicU64::new(current_time),
+ last_node_announcement_serial: AtomicU32::new(current_time),
logger,
custom_message_handler,
secp_ctx,
}
if peer.should_buffer_gossip_broadcast() {
if let Some(msg) = peer.gossip_broadcast_buffer.pop_front() {
- peer.pending_outbound_buffer.push_back(msg);
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_buffer(&msg[..]));
}
}
if peer.should_buffer_gossip_backfill() {
/// Append a message to a peer's pending outbound/write buffer
fn enqueue_message<M: wire::Type>(&self, peer: &mut Peer, message: &M) {
- let mut buffer = VecWriter(Vec::with_capacity(2048));
- wire::write(message, &mut buffer).unwrap(); // crash if the write failed
-
if is_gossip_msg(message.type_id()) {
log_gossip!(self.logger, "Enqueueing message {:?} to {}", message, log_pubkey!(peer.their_node_id.unwrap()));
} else {
log_trace!(self.logger, "Enqueueing message {:?} to {}", message, log_pubkey!(peer.their_node_id.unwrap()))
}
peer.msgs_sent_since_pong += 1;
- peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&buffer.0[..]));
+ peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(message));
}
/// Append a message to a peer's pending outbound/write gossip broadcast buffer
- fn enqueue_encoded_gossip_broadcast(&self, peer: &mut Peer, encoded_message: &Vec<u8>) {
+ fn enqueue_encoded_gossip_broadcast(&self, peer: &mut Peer, encoded_message: Vec<u8>) {
peer.msgs_sent_since_pong += 1;
- peer.gossip_broadcast_buffer.push_back(peer.channel_encryptor.encrypt_message(&encoded_message[..]));
+ peer.gossip_broadcast_buffer.push_back(encoded_message);
}
fn do_read_event(&self, peer_descriptor: &mut Descriptor, data: &[u8]) -> Result<bool, PeerHandleError> {
peer.their_node_id = Some(their_node_id);
insert_node_id!();
let features = self.message_handler.chan_handler.provided_init_features(&their_node_id)
- .or(self.message_handler.route_handler.provided_init_features(&their_node_id));
+ .or(self.message_handler.route_handler.provided_init_features(&their_node_id))
+ .or(self.message_handler.onion_message_handler.provided_init_features(&their_node_id));
let resp = msgs::Init { features, remote_network_address: filter_addresses(peer.their_net_address.clone()) };
self.enqueue_message(peer, &resp);
peer.awaiting_pong_timer_tick_intervals = 0;
peer.their_node_id = Some(their_node_id);
insert_node_id!();
let features = self.message_handler.chan_handler.provided_init_features(&their_node_id)
- .or(self.message_handler.route_handler.provided_init_features(&their_node_id));
+ .or(self.message_handler.route_handler.provided_init_features(&their_node_id))
+ .or(self.message_handler.onion_message_handler.provided_init_features(&their_node_id));
let resp = msgs::Init { features, remote_network_address: filter_addresses(peer.their_net_address.clone()) };
self.enqueue_message(peer, &resp);
peer.awaiting_pong_timer_tick_intervals = 0;
}
(_, Some(ty)) if is_gossip_msg(ty) => {
log_gossip!(self.logger, "Got an invalid value while deserializing a gossip message");
- self.enqueue_message(peer, &msgs::WarningMessage { channel_id: [0; 32], data: "Unreadable/bogus gossip message".to_owned() });
+ self.enqueue_message(peer, &msgs::WarningMessage {
+ channel_id: [0; 32],
+ data: format!("Unreadable/bogus gossip message of type {}", ty),
+ });
continue;
}
(msgs::DecodeError::UnknownRequiredFeature, ty) => {
peer_lock.sync_status = InitSyncTracker::ChannelsSyncing(0);
}
- 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!(their_node_id));
+ if let Err(()) = self.message_handler.route_handler.peer_connected(&their_node_id, &msg) {
+ log_debug!(self.logger, "Route Handler decided we couldn't communicate with peer {}", log_pubkey!(their_node_id));
+ return Err(PeerHandleError{ no_connection_possible: true }.into());
+ }
+ if let Err(()) = self.message_handler.chan_handler.peer_connected(&their_node_id, &msg) {
+ log_debug!(self.logger, "Channel Handler decided we couldn't communicate with peer {}", log_pubkey!(their_node_id));
+ return Err(PeerHandleError{ no_connection_possible: true }.into());
+ }
+ if let Err(()) = self.message_handler.onion_message_handler.peer_connected(&their_node_id, &msg) {
+ log_debug!(self.logger, "Onion Message Handler decided we couldn't communicate with peer {}", log_pubkey!(their_node_id));
return Err(PeerHandleError{ no_connection_possible: true }.into());
}
-
- self.message_handler.route_handler.peer_connected(&their_node_id, &msg);
- self.message_handler.chan_handler.peer_connected(&their_node_id, &msg);
- self.message_handler.onion_message_handler.peer_connected(&their_node_id, &msg);
peer_lock.their_features = Some(msg.features);
return Ok(None);
if except_node.is_some() && peer.their_node_id.as_ref() == except_node {
continue;
}
- self.enqueue_encoded_gossip_broadcast(&mut *peer, &encoded_msg);
+ self.enqueue_encoded_gossip_broadcast(&mut *peer, encoded_msg.clone());
}
},
wire::Message::NodeAnnouncement(ref msg) => {
if except_node.is_some() && peer.their_node_id.as_ref() == except_node {
continue;
}
- self.enqueue_encoded_gossip_broadcast(&mut *peer, &encoded_msg);
+ self.enqueue_encoded_gossip_broadcast(&mut *peer, encoded_msg.clone());
}
},
wire::Message::ChannelUpdate(ref msg) => {
if except_node.is_some() && peer.their_node_id.as_ref() == except_node {
continue;
}
- self.enqueue_encoded_gossip_broadcast(&mut *peer, &encoded_msg);
+ self.enqueue_encoded_gossip_broadcast(&mut *peer, encoded_msg.clone());
}
},
_ => debug_assert!(false, "We shouldn't attempt to forward anything but gossip messages"),
// addresses be sorted for future compatibility.
addresses.sort_by_key(|addr| addr.get_id());
+ let features = self.message_handler.chan_handler.provided_node_features()
+ .or(self.message_handler.route_handler.provided_node_features())
+ .or(self.message_handler.onion_message_handler.provided_node_features());
let announcement = msgs::UnsignedNodeAnnouncement {
- features: self.message_handler.chan_handler.provided_node_features(),
- timestamp: self.last_node_announcement_serial.fetch_add(1, Ordering::AcqRel) as u32,
+ features,
+ timestamp: self.last_node_announcement_serial.fetch_add(1, Ordering::AcqRel),
node_id: PublicKey::from_secret_key(&self.secp_ctx, &self.our_node_secret),
rgb, alias, addresses,
excess_address_data: Vec::new(),
#[cfg(test)]
mod tests {
- use ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler, filter_addresses};
- use ln::{msgs, wire};
- use ln::msgs::NetAddress;
- use util::events;
- use util::test_utils;
+ use crate::ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler, filter_addresses};
+ use crate::ln::{msgs, wire};
+ use crate::ln::msgs::NetAddress;
+ use crate::util::events;
+ use crate::util::test_utils;
use bitcoin::secp256k1::Secp256k1;
use bitcoin::secp256k1::{SecretKey, PublicKey};
- use prelude::*;
- use sync::{Arc, Mutex};
+ use crate::prelude::*;
+ use crate::sync::{Arc, Mutex};
use core::sync::atomic::Ordering;
#[derive(Clone)]