X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Fpeer_handler.rs;h=d12f8c06eed0409630864359e54c20d3b714930d;hb=fcfd683312c705c2e5150529ed0e680a66ee503c;hp=e1da618ec69f744f036c692ff68391948525e49c;hpb=be123f7d228197a0a9f9e48c4e4e31fa2ecbeca9;p=rust-lightning diff --git a/lightning/src/ln/peer_handler.rs b/lightning/src/ln/peer_handler.rs index e1da618e..d12f8c06 100644 --- a/lightning/src/ln/peer_handler.rs +++ b/lightning/src/ln/peer_handler.rs @@ -19,21 +19,21 @@ use bitcoin::secp256k1::key::{SecretKey,PublicKey}; use ln::features::InitFeatures; use ln::msgs; -use ln::msgs::{ChannelMessageHandler, LightningError, RoutingMessageHandler}; +use ln::msgs::{ChannelMessageHandler, LightningError, NetAddress, RoutingMessageHandler}; use ln::channelmanager::{SimpleArcChannelManager, SimpleRefChannelManager}; use util::ser::{VecWriter, Writeable, Writer}; use ln::peer_channel_encryptor::{PeerChannelEncryptor,NextNoiseStep}; use ln::wire; -use util::byte_utils; +use ln::wire::Encode; +use util::atomic_counter::AtomicCounter; use util::events::{MessageSendEvent, MessageSendEventsProvider}; use util::logger::Logger; -use routing::network_graph::NetGraphMsgHandler; +use routing::network_graph::{NetworkGraph, NetGraphMsgHandler}; use prelude::*; use io; use alloc::collections::LinkedList; use sync::{Arc, Mutex}; -use core::sync::atomic::{AtomicUsize, Ordering}; use core::{cmp, hash, fmt, mem}; use core::ops::Deref; use core::convert::Infallible; @@ -69,7 +69,7 @@ impl RoutingMessageHandler for IgnoringMessageHandler { fn get_next_channel_announcements(&self, _starting_point: u64, _batch_amount: u8) -> Vec<(msgs::ChannelAnnouncement, Option, Option)> { Vec::new() } fn get_next_node_announcements(&self, _starting_point: Option<&PublicKey>, _batch_amount: u8) -> Vec { Vec::new() } - fn sync_routing_table(&self, _their_node_id: &PublicKey, _init: &msgs::Init) {} + fn peer_connected(&self, _their_node_id: &PublicKey, _init: &msgs::Init) {} 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(()) } @@ -307,12 +307,12 @@ const OUTBOUND_BUFFER_LIMIT_DROP_GOSSIP: usize = OUTBOUND_BUFFER_LIMIT_READ_PAUS /// Thus, to avoid needlessly disconnecting a peer, we allow a peer to take this many timer ticks /// per connected peer to respond to a ping, as long as they send us at least one message during /// each tick, ensuring we aren't actually just disconnected. -/// With a timer tick interval of five seconds, this translates to about 30 seconds per connected +/// With a timer tick interval of ten seconds, this translates to about 40 seconds per connected /// peer. /// /// When we improve parallelism somewhat we should reduce this to e.g. this many timer ticks per /// two connected peers, assuming most LDK-running systems have at least two cores. -const MAX_BUFFER_DRAIN_TICK_INTERVALS_PER_PEER: i8 = 6; +const MAX_BUFFER_DRAIN_TICK_INTERVALS_PER_PEER: i8 = 4; /// This is the minimum number of messages we expect a peer to be able to handle within one timer /// tick. Once we have sent this many messages since the last ping, we send a ping right away to @@ -324,6 +324,7 @@ struct Peer { channel_encryptor: PeerChannelEncryptor, their_node_id: Option, their_features: Option, + their_net_address: Option, pending_outbound_buffer: LinkedList>, pending_outbound_buffer_first_msg_offset: usize, @@ -371,18 +372,14 @@ struct PeerHolder { node_id_to_descriptor: HashMap, } -#[cfg(not(any(target_pointer_width = "32", target_pointer_width = "64")))] -fn _check_usize_is_32_or_64() { - // See below, less than 32 bit pointers may be unsafe here! - 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 = PeerManager>, Arc, Arc>>, Arc, Arc>; +/// +/// (C-not exported) as Arcs don't make sense in bindings +pub type SimpleArcPeerManager = PeerManager>, Arc, Arc, Arc>>, Arc, Arc>; /// 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 @@ -390,7 +387,9 @@ pub type SimpleArcPeerManager = PeerManager = PeerManager, &'e NetGraphMsgHandler<&'g C, &'f L>, &'f L, IgnoringMessageHandler>; +/// +/// (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, &'e NetGraphMsgHandler<&'g NetworkGraph, &'h C, &'f 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`]. @@ -422,10 +421,7 @@ pub struct PeerManager PeerManager" for an optional pubkey. +/// This works around `format!()` taking a reference to each argument, preventing +/// `if let Some(node_id) = peer.their_node_id { format!(.., node_id) } else { .. }` from compiling +/// due to lifetime errors. +struct OptionalFromDebugger<'a>(&'a Option); +impl core::fmt::Display for OptionalFromDebugger<'_> { + fn fmt(&self, f: &mut core::fmt::Formatter<'_>) -> Result<(), core::fmt::Error> { + if let Some(node_id) = self.0 { write!(f, " from {}", log_pubkey!(node_id)) } else { Ok(()) } + } +} + +/// A function used to filter out local or private addresses +/// https://www.iana.org./assignments/ipv4-address-space/ipv4-address-space.xhtml +/// https://www.iana.org/assignments/ipv6-address-space/ipv6-address-space.xhtml +fn filter_addresses(ip_address: Option) -> Option { + match ip_address{ + // For IPv4 range 10.0.0.0 - 10.255.255.255 (10/8) + Some(NetAddress::IPv4{addr: [10, _, _, _], port: _}) => None, + // For IPv4 range 0.0.0.0 - 0.255.255.255 (0/8) + Some(NetAddress::IPv4{addr: [0, _, _, _], port: _}) => None, + // For IPv4 range 100.64.0.0 - 100.127.255.255 (100.64/10) + Some(NetAddress::IPv4{addr: [100, 64..=127, _, _], port: _}) => None, + // For IPv4 range 127.0.0.0 - 127.255.255.255 (127/8) + Some(NetAddress::IPv4{addr: [127, _, _, _], port: _}) => None, + // For IPv4 range 169.254.0.0 - 169.254.255.255 (169.254/16) + Some(NetAddress::IPv4{addr: [169, 254, _, _], port: _}) => None, + // For IPv4 range 172.16.0.0 - 172.31.255.255 (172.16/12) + Some(NetAddress::IPv4{addr: [172, 16..=31, _, _], port: _}) => None, + // For IPv4 range 192.168.0.0 - 192.168.255.255 (192.168/16) + Some(NetAddress::IPv4{addr: [192, 168, _, _], port: _}) => None, + // For IPv4 range 192.88.99.0 - 192.88.99.255 (192.88.99/24) + Some(NetAddress::IPv4{addr: [192, 88, 99, _], port: _}) => None, + // For IPv6 range 2000:0000:0000:0000:0000:0000:0000:0000 - 3fff:ffff:ffff:ffff:ffff:ffff:ffff:ffff (2000::/3) + Some(NetAddress::IPv6{addr: [0x20..=0x3F, _, _, _, _, _, _, _, _, _, _, _, _, _, _, _], port: _}) => ip_address, + // For remaining addresses + Some(NetAddress::IPv6{addr: _, port: _}) => None, + Some(..) => ip_address, + None => None, + } +} + impl PeerManager where CM::Target: ChannelMessageHandler, RM::Target: RoutingMessageHandler, @@ -513,8 +550,7 @@ impl P }), our_node_secret, ephemeral_key_midstate, - peer_counter_low: AtomicUsize::new(0), - peer_counter_high: AtomicUsize::new(0), + peer_counter: AtomicCounter::new(), logger, custom_message_handler, } @@ -537,18 +573,18 @@ impl P fn get_ephemeral_key(&self) -> SecretKey { let mut ephemeral_hash = self.ephemeral_key_midstate.clone(); - let low = self.peer_counter_low.fetch_add(1, Ordering::AcqRel); - let high = if low == 0 { - self.peer_counter_high.fetch_add(1, Ordering::AcqRel) - } else { - self.peer_counter_high.load(Ordering::Acquire) - }; - ephemeral_hash.input(&byte_utils::le64_to_array(low as u64)); - ephemeral_hash.input(&byte_utils::le64_to_array(high as u64)); + let counter = self.peer_counter.get_increment(); + ephemeral_hash.input(&counter.to_le_bytes()); SecretKey::from_slice(&Sha256::from_engine(ephemeral_hash).into_inner()).expect("You broke SHA-256!") } - /// Indicates a new outbound connection has been established to a node with the given node_id. + /// Indicates a new outbound connection has been established to a node with the given node_id + /// and an optional remote network address. + /// + /// The remote network address adds the option to report a remote IP address back to a connecting + /// peer using the init message. + /// The user should pass the remote network address of the host they are connected to. + /// /// Note that if an Err is returned here you MUST NOT call socket_disconnected for the new /// descriptor but must disconnect the connection immediately. /// @@ -558,7 +594,7 @@ impl P /// [`socket_disconnected()`]. /// /// [`socket_disconnected()`]: PeerManager::socket_disconnected - pub fn new_outbound_connection(&self, their_node_id: PublicKey, descriptor: Descriptor) -> Result, PeerHandleError> { + pub fn new_outbound_connection(&self, their_node_id: PublicKey, descriptor: Descriptor, remote_network_address: Option) -> Result, 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(); let pending_read_buffer = [0; 50].to_vec(); // Noise act two is 50 bytes @@ -568,6 +604,7 @@ impl P channel_encryptor: peer_encryptor, their_node_id: None, their_features: None, + their_net_address: remote_network_address, pending_outbound_buffer: LinkedList::new(), pending_outbound_buffer_first_msg_offset: 0, @@ -588,7 +625,12 @@ impl P Ok(res) } - /// Indicates a new inbound connection has been established. + /// Indicates a new inbound connection has been established to a node with an optional remote + /// network address. + /// + /// The remote network address adds the option to report a remote IP address back to a connecting + /// peer using the init message. + /// The user should pass the remote network address of the host they are connected to. /// /// 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 @@ -599,7 +641,7 @@ impl P /// [`socket_disconnected()`]. /// /// [`socket_disconnected()`]: PeerManager::socket_disconnected - pub fn new_inbound_connection(&self, descriptor: Descriptor) -> Result<(), PeerHandleError> { + pub fn new_inbound_connection(&self, descriptor: Descriptor, remote_network_address: Option) -> 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 @@ -608,6 +650,7 @@ impl P channel_encryptor: peer_encryptor, their_node_id: None, their_features: None, + their_net_address: remote_network_address, pending_outbound_buffer: LinkedList::new(), pending_outbound_buffer_first_msg_offset: 0, @@ -763,7 +806,12 @@ impl P fn enqueue_message(&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 - log_trace!(self.logger, "Enqueueing message {:?} to {}", message, log_pubkey!(peer.their_node_id.unwrap())); + + 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())) + } self.enqueue_encoded_message(peer, &buffer.0); } @@ -804,19 +852,25 @@ impl P match e.action { msgs::ErrorAction::DisconnectPeer { msg: _ } => { //TODO: Try to push msg - log_debug!(self.logger, "Error handling message; disconnecting peer with: {}", e.err); + log_debug!(self.logger, "Error handling message{}; disconnecting peer with: {}", OptionalFromDebugger(&peer.their_node_id), e.err); return Err(PeerHandleError{ no_connection_possible: false }); }, msgs::ErrorAction::IgnoreAndLog(level) => { - log_given_level!(self.logger, level, "Error handling message; ignoring: {}", e.err); + log_given_level!(self.logger, level, "Error handling message{}; ignoring: {}", OptionalFromDebugger(&peer.their_node_id), e.err); continue }, + msgs::ErrorAction::IgnoreDuplicateGossip => continue, // Don't even bother logging these msgs::ErrorAction::IgnoreError => { - log_debug!(self.logger, "Error handling message; ignoring: {}", e.err); + log_debug!(self.logger, "Error handling message{}; ignoring: {}", OptionalFromDebugger(&peer.their_node_id), e.err); continue; }, msgs::ErrorAction::SendErrorMessage { msg } => { - log_debug!(self.logger, "Error handling message; sending error message with: {}", e.err); + log_debug!(self.logger, "Error handling message{}; sending error message with: {}", OptionalFromDebugger(&peer.their_node_id), e.err); + self.enqueue_message(peer, &msg); + continue; + }, + msgs::ErrorAction::SendWarningMessage { msg, log_level } => { + log_given_level!(self.logger, log_level, "Error handling message{}; sending warning message with: {}", OptionalFromDebugger(&peer.their_node_id), e.err); self.enqueue_message(peer, &msg); continue; }, @@ -858,7 +912,7 @@ impl P peer.their_node_id = Some(their_node_id); insert_node_id!(); let features = InitFeatures::known(); - let resp = msgs::Init { features }; + 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; }, @@ -869,7 +923,7 @@ impl P peer.their_node_id = Some(their_node_id); insert_node_id!(); let features = InitFeatures::known(); - let resp = msgs::Init { features }; + 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; }, @@ -896,25 +950,40 @@ impl P Ok(x) => x, Err(e) => { match e { - msgs::DecodeError::UnknownVersion => return Err(PeerHandleError { no_connection_possible: false }), - msgs::DecodeError::UnknownRequiredFeature => { - log_trace!(self.logger, "Got a channel/node announcement with an known required feature flag, you may want to update!"); + // Note that to avoid recursion we never call + // `do_attempt_write_data` from here, causing + // the messages enqueued here to not actually + // be sent before the peer is disconnected. + (msgs::DecodeError::UnknownRequiredFeature, Some(ty)) if is_gossip_msg(ty) => { + log_gossip!(self.logger, "Got a channel/node announcement with an unknown required feature flag, you may want to update!"); + continue; + } + (msgs::DecodeError::UnsupportedCompression, _) => { + log_gossip!(self.logger, "We don't support zlib-compressed message fields, sending a warning and ignoring message"); + self.enqueue_message(peer, &msgs::WarningMessage { channel_id: [0; 32], data: "Unsupported message compression: zlib".to_owned() }); + continue; + } + (_, 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() }); continue; } - msgs::DecodeError::InvalidValue => { + (msgs::DecodeError::UnknownRequiredFeature, ty) => { + log_gossip!(self.logger, "Received a message with an unknown required feature flag or TLV, you may want to update!"); + self.enqueue_message(peer, &msgs::WarningMessage { channel_id: [0; 32], data: format!("Received an unknown required feature/TLV in message type {:?}", ty) }); + return Err(PeerHandleError { no_connection_possible: false }); + } + (msgs::DecodeError::UnknownVersion, _) => return Err(PeerHandleError { no_connection_possible: false }), + (msgs::DecodeError::InvalidValue, _) => { log_debug!(self.logger, "Got an invalid value while deserializing message"); return Err(PeerHandleError { no_connection_possible: false }); } - msgs::DecodeError::ShortRead => { + (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 }), - msgs::DecodeError::UnsupportedCompression => { - log_trace!(self.logger, "We don't support zlib-compressed message fields, ignoring message"); - continue; - } + (msgs::DecodeError::BadLengthDescriptor, _) => return Err(PeerHandleError { no_connection_possible: false }), + (msgs::DecodeError::Io(_), _) => return Err(PeerHandleError { no_connection_possible: false }), } } }; @@ -959,7 +1028,12 @@ impl P peer: &mut Peer, message: wire::Message<<::Target as wire::CustomMessageReader>::CustomMessage> ) -> Result::Target as wire::CustomMessageReader>::CustomMessage>>, MessageHandlingError> { - log_trace!(self.logger, "Received message {:?} from {}", message, log_pubkey!(peer.their_node_id.unwrap())); + if is_gossip_msg(message.type_id()) { + log_gossip!(self.logger, "Received message {:?} from {}", message, log_pubkey!(peer.their_node_id.unwrap())); + } else { + log_trace!(self.logger, "Received message {:?} from {}", message, log_pubkey!(peer.their_node_id.unwrap())); + } + peer.received_message_since_timer_tick = true; // Need an Init as first message @@ -982,7 +1056,7 @@ impl P return Err(PeerHandleError{ no_connection_possible: false }.into()); } - log_info!(self.logger, "Received peer Init message: {}", msg.features); + log_info!(self.logger, "Received peer Init message from {}: {}", log_pubkey!(peer.their_node_id.unwrap()), msg.features); if msg.features.initial_routing_sync() { peer.sync_status = InitSyncTracker::ChannelsSyncing(0); @@ -992,7 +1066,7 @@ impl P return Err(PeerHandleError{ no_connection_possible: true }.into()); } - self.message_handler.route_handler.sync_routing_table(&peer.their_node_id.unwrap(), &msg); + self.message_handler.route_handler.peer_connected(&peer.their_node_id.unwrap(), &msg); self.message_handler.chan_handler.peer_connected(&peer.their_node_id.unwrap(), &msg); peer.their_features = Some(msg.features); @@ -1016,6 +1090,21 @@ impl P return Err(PeerHandleError{ no_connection_possible: true }.into()); } }, + wire::Message::Warning(msg) => { + let mut data_is_printable = true; + for b in msg.data.bytes() { + if b < 32 || b > 126 { + data_is_printable = false; + break; + } + } + + if data_is_printable { + log_debug!(self.logger, "Got warning message from {}: {}", log_pubkey!(peer.their_node_id.unwrap()), msg.data); + } else { + log_debug!(self.logger, "Got warning message from {} with non-ASCII error message", log_pubkey!(peer.their_node_id.unwrap())); + } + }, wire::Message::Ping(msg) => { if msg.ponglen < 65532 { @@ -1138,7 +1227,7 @@ impl P fn forward_broadcast_msg(&self, peers: &mut PeerHolder, msg: &wire::Message<<::Target as wire::CustomMessageReader>::CustomMessage>, except_node: Option<&PublicKey>) { match msg { wire::Message::ChannelAnnouncement(ref msg) => { - log_trace!(self.logger, "Sending message to all peers except {:?} or the announced channel's counterparties: {:?}", except_node, msg); + log_gossip!(self.logger, "Sending message to all peers except {:?} or the announced channel's counterparties: {:?}", except_node, msg); let encoded_msg = encode_msg!(msg); for (_, peer) in peers.peers.iter_mut() { @@ -1149,7 +1238,7 @@ impl P if peer.pending_outbound_buffer.len() > OUTBOUND_BUFFER_LIMIT_DROP_GOSSIP || peer.msgs_sent_since_pong > BUFFER_DRAIN_MSGS_PER_TICK * FORWARD_INIT_SYNC_BUFFER_LIMIT_RATIO { - log_trace!(self.logger, "Skipping broadcast message to {:?} as its outbound buffer is full", peer.their_node_id); + log_gossip!(self.logger, "Skipping broadcast message to {:?} as its outbound buffer is full", peer.their_node_id); continue; } if peer.their_node_id.as_ref() == Some(&msg.contents.node_id_1) || @@ -1163,7 +1252,7 @@ impl P } }, wire::Message::NodeAnnouncement(ref msg) => { - log_trace!(self.logger, "Sending message to all peers except {:?} or the announced node: {:?}", except_node, msg); + log_gossip!(self.logger, "Sending message to all peers except {:?} or the announced node: {:?}", except_node, msg); let encoded_msg = encode_msg!(msg); for (_, peer) in peers.peers.iter_mut() { @@ -1174,7 +1263,7 @@ impl P if peer.pending_outbound_buffer.len() > OUTBOUND_BUFFER_LIMIT_DROP_GOSSIP || peer.msgs_sent_since_pong > BUFFER_DRAIN_MSGS_PER_TICK * FORWARD_INIT_SYNC_BUFFER_LIMIT_RATIO { - log_trace!(self.logger, "Skipping broadcast message to {:?} as its outbound buffer is full", peer.their_node_id); + log_gossip!(self.logger, "Skipping broadcast message to {:?} as its outbound buffer is full", peer.their_node_id); continue; } if peer.their_node_id.as_ref() == Some(&msg.contents.node_id) { @@ -1187,7 +1276,7 @@ impl P } }, wire::Message::ChannelUpdate(ref msg) => { - log_trace!(self.logger, "Sending message to all peers except {:?}: {:?}", except_node, msg); + log_gossip!(self.logger, "Sending message to all peers except {:?}: {:?}", except_node, msg); let encoded_msg = encode_msg!(msg); for (_, peer) in peers.peers.iter_mut() { @@ -1198,7 +1287,7 @@ impl P if peer.pending_outbound_buffer.len() > OUTBOUND_BUFFER_LIMIT_DROP_GOSSIP || peer.msgs_sent_since_pong > BUFFER_DRAIN_MSGS_PER_TICK * FORWARD_INIT_SYNC_BUFFER_LIMIT_RATIO { - log_trace!(self.logger, "Skipping broadcast message to {:?} as its outbound buffer is full", peer.their_node_id); + log_gossip!(self.logger, "Skipping broadcast message to {:?} as its outbound buffer is full", peer.their_node_id); continue; } if except_node.is_some() && peer.their_node_id.as_ref() == except_node { @@ -1346,21 +1435,31 @@ impl P }, MessageSendEvent::BroadcastChannelAnnouncement { msg, update_msg } => { log_debug!(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() { - self.forward_broadcast_msg(peers, &wire::Message::ChannelAnnouncement(msg), None); - self.forward_broadcast_msg(peers, &wire::Message::ChannelUpdate(update_msg), None); + match self.message_handler.route_handler.handle_channel_announcement(&msg) { + Ok(_) | Err(LightningError { action: msgs::ErrorAction::IgnoreDuplicateGossip, .. }) => + self.forward_broadcast_msg(peers, &wire::Message::ChannelAnnouncement(msg), None), + _ => {}, + } + match self.message_handler.route_handler.handle_channel_update(&update_msg) { + Ok(_) | Err(LightningError { action: msgs::ErrorAction::IgnoreDuplicateGossip, .. }) => + self.forward_broadcast_msg(peers, &wire::Message::ChannelUpdate(update_msg), None), + _ => {}, } }, MessageSendEvent::BroadcastNodeAnnouncement { msg } => { log_debug!(self.logger, "Handling BroadcastNodeAnnouncement event in peer_handler"); - if self.message_handler.route_handler.handle_node_announcement(&msg).is_ok() { - self.forward_broadcast_msg(peers, &wire::Message::NodeAnnouncement(msg), None); + match self.message_handler.route_handler.handle_node_announcement(&msg) { + Ok(_) | Err(LightningError { action: msgs::ErrorAction::IgnoreDuplicateGossip, .. }) => + self.forward_broadcast_msg(peers, &wire::Message::NodeAnnouncement(msg), None), + _ => {}, } }, MessageSendEvent::BroadcastChannelUpdate { msg } => { log_debug!(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() { - self.forward_broadcast_msg(peers, &wire::Message::ChannelUpdate(msg), None); + match self.message_handler.route_handler.handle_channel_update(&msg) { + Ok(_) | Err(LightningError { action: msgs::ErrorAction::IgnoreDuplicateGossip, .. }) => + self.forward_broadcast_msg(peers, &wire::Message::ChannelUpdate(msg), None), + _ => {}, } }, MessageSendEvent::SendChannelUpdate { ref node_id, ref msg } => { @@ -1383,7 +1482,7 @@ impl P // room in the send buffer, put the error message there... self.do_attempt_write_data(&mut descriptor, &mut peer); } else { - log_trace!(self.logger, "Handling DisconnectPeer HandleError event in peer_handler for node {} with no message", log_pubkey!(node_id)); + log_gossip!(self.logger, "Handling DisconnectPeer HandleError event in peer_handler for node {} with no message", log_pubkey!(node_id)); } } descriptor.disconnect_socket(); @@ -1393,6 +1492,7 @@ impl P msgs::ErrorAction::IgnoreAndLog(level) => { log_given_level!(self.logger, level, "Received a HandleError event to be ignored for node {}", log_pubkey!(node_id)); }, + msgs::ErrorAction::IgnoreDuplicateGossip => {}, msgs::ErrorAction::IgnoreError => { log_debug!(self.logger, "Received a HandleError event to be ignored for node {}", log_pubkey!(node_id)); }, @@ -1402,6 +1502,12 @@ impl P msg.data); self.enqueue_message(get_peer_for_forwarding!(node_id), msg); }, + msgs::ErrorAction::SendWarningMessage { ref msg, ref log_level } => { + log_given_level!(self.logger, *log_level, "Handling SendWarningMessage HandleError event in peer_handler for node {} with message {}", + log_pubkey!(node_id), + msg.data); + self.enqueue_message(get_peer_for_forwarding!(node_id), msg); + }, } }, MessageSendEvent::SendChannelRangeQuery { ref node_id, ref msg } => { @@ -1411,7 +1517,7 @@ impl P self.enqueue_message(get_peer_for_forwarding!(node_id), msg); } MessageSendEvent::SendReplyChannelRange { ref node_id, ref msg } => { - log_trace!(self.logger, "Handling SendReplyChannelRange event in peer_handler for node {} with num_scids={} first_blocknum={} number_of_blocks={}, sync_complete={}", + log_gossip!(self.logger, "Handling SendReplyChannelRange event in peer_handler for node {} with num_scids={} first_blocknum={} number_of_blocks={}, sync_complete={}", log_pubkey!(node_id), msg.short_channel_ids.len(), msg.first_blocknum, @@ -1419,6 +1525,9 @@ impl P msg.sync_complete); self.enqueue_message(get_peer_for_forwarding!(node_id), msg); } + MessageSendEvent::SendGossipTimestampFilter { ref node_id, ref msg } => { + self.enqueue_message(get_peer_for_forwarding!(node_id), msg); + } } } @@ -1514,9 +1623,9 @@ impl P /// Send pings to each peer and disconnect those which did not respond to the last round of /// pings. /// - /// This may be called on any timescale you want, however, roughly once every five to ten - /// seconds is preferred. The call rate determines both how often we send a ping to our peers - /// and how much time they have to respond before we disconnect them. + /// This may be called on any timescale you want, however, roughly once every ten seconds is + /// preferred. The call rate determines both how often we send a ping to our peers and how much + /// time they have to respond before we disconnect them. /// /// May call [`send_data`] on all [`SocketDescriptor`]s. Thus, be very careful with reentrancy /// issues! @@ -1594,10 +1703,20 @@ impl P } } +fn is_gossip_msg(type_id: u16) -> bool { + match type_id { + msgs::ChannelAnnouncement::TYPE | + msgs::ChannelUpdate::TYPE | + msgs::NodeAnnouncement::TYPE => true, + _ => false + } +} + #[cfg(test)] mod tests { - use ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler}; + use ln::peer_handler::{PeerManager, MessageHandler, SocketDescriptor, IgnoringMessageHandler, filter_addresses}; use ln::msgs; + use ln::msgs::NetAddress; use util::events; use util::test_utils; @@ -1673,8 +1792,8 @@ mod tests { 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(); + let initial_data = peer_b.new_outbound_connection(a_id, fd_b.clone(), None).unwrap(); + peer_a.new_inbound_connection(fd_a.clone(), None).unwrap(); assert_eq!(peer_a.read_event(&mut fd_a, &initial_data).unwrap(), false); peer_a.process_events(); assert_eq!(peer_b.read_event(&mut fd_b, &fd_a.outbound_data.lock().unwrap().split_off(0)).unwrap(), false); @@ -1781,8 +1900,8 @@ mod tests { let a_id = PublicKey::from_secret_key(&secp_ctx, &peers[0].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 = peers[1].new_outbound_connection(a_id, fd_b.clone()).unwrap(); - peers[0].new_inbound_connection(fd_a.clone()).unwrap(); + let initial_data = peers[1].new_outbound_connection(a_id, fd_b.clone(), None).unwrap(); + peers[0].new_inbound_connection(fd_a.clone(), None).unwrap(); // If we get a single timer tick before completion, that's fine assert_eq!(peers[0].peers.lock().unwrap().peers.len(), 1); @@ -1800,4 +1919,100 @@ mod tests { assert!(peers[0].read_event(&mut fd_a, &fd_b.outbound_data.lock().unwrap().split_off(0)).is_err()); } + + #[test] + fn test_filter_addresses(){ + // Tests the filter_addresses function. + + // For (10/8) + let ip_address = NetAddress::IPv4{addr: [10, 0, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [10, 0, 255, 201], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [10, 255, 255, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For (0/8) + let ip_address = NetAddress::IPv4{addr: [0, 0, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [0, 0, 255, 187], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [0, 255, 255, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For (100.64/10) + let ip_address = NetAddress::IPv4{addr: [100, 64, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [100, 78, 255, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [100, 127, 255, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For (127/8) + let ip_address = NetAddress::IPv4{addr: [127, 0, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [127, 65, 73, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [127, 255, 255, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For (169.254/16) + let ip_address = NetAddress::IPv4{addr: [169, 254, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [169, 254, 221, 101], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [169, 254, 255, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For (172.16/12) + let ip_address = NetAddress::IPv4{addr: [172, 16, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [172, 27, 101, 23], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [172, 31, 255, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For (192.168/16) + let ip_address = NetAddress::IPv4{addr: [192, 168, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [192, 168, 205, 159], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [192, 168, 255, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For (192.88.99/24) + let ip_address = NetAddress::IPv4{addr: [192, 88, 99, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [192, 88, 99, 140], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv4{addr: [192, 88, 99, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For other IPv4 addresses + let ip_address = NetAddress::IPv4{addr: [188, 255, 99, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone())); + let ip_address = NetAddress::IPv4{addr: [123, 8, 129, 14], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone())); + let ip_address = NetAddress::IPv4{addr: [2, 88, 9, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone())); + + // For (2000::/3) + let ip_address = NetAddress::IPv6{addr: [32, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone())); + let ip_address = NetAddress::IPv6{addr: [45, 34, 209, 190, 0, 123, 55, 34, 0, 0, 3, 27, 201, 0, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone())); + let ip_address = NetAddress::IPv6{addr: [63, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), Some(ip_address.clone())); + + // For other IPv6 addresses + let ip_address = NetAddress::IPv6{addr: [24, 240, 12, 32, 0, 0, 0, 0, 20, 97, 0, 32, 121, 254, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv6{addr: [68, 23, 56, 63, 0, 0, 2, 7, 75, 109, 0, 39, 0, 0, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + let ip_address = NetAddress::IPv6{addr: [101, 38, 140, 230, 100, 0, 30, 98, 0, 26, 0, 0, 57, 96, 0, 0], port: 1000}; + assert_eq!(filter_addresses(Some(ip_address.clone())), None); + + // For (None) + assert_eq!(filter_addresses(None), None); + } }