X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=src%2Fln%2Fpeer_handler.rs;h=3122e572e57fafcbd90e1c08c6c10b146d152c29;hb=ecade5cf3843928078d1a5bb6d11daeb972eaa15;hp=b44ddc515b54d96fc35b970eb752c2ca7cfddc56;hpb=03c6f84aa82e04c20692f01303bb9eaf6fde4411;p=rust-lightning diff --git a/src/ln/peer_handler.rs b/src/ln/peer_handler.rs index b44ddc51..3122e572 100644 --- a/src/ln/peer_handler.rs +++ b/src/ln/peer_handler.rs @@ -5,7 +5,7 @@ use ln::msgs::{MsgEncodable,MsgDecodable}; use ln::peer_channel_encryptor::{PeerChannelEncryptor,NextNoiseStep}; use util::byte_utils; use util::events::{EventsProvider,Event}; -use util::logger::{Logger, Record}; +use util::logger::Logger; use std::collections::{HashMap,LinkedList}; use std::sync::{Arc, Mutex}; @@ -303,22 +303,23 @@ impl PeerManager { Err(e) => { if let Some(action) = e.action { match action { - msgs::ErrorAction::UpdateFailHTLC { msg } => { - encode_and_send_msg!(msg, 131); - continue; - }, msgs::ErrorAction::DisconnectPeer { msg: _ } => { + //TODO: Try to push msg + log_trace!(self, "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); 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; }, } } else { + log_debug!(self, "Got Err handling message, action not yet filled in: {}", e.err); return Err(PeerHandleError{ no_connection_possible: false }); } } @@ -330,21 +331,23 @@ impl PeerManager { ($thing: expr) => { match $thing { Ok(x) => x, - Err(_e) => { - //TODO: Handle e? - return Err(PeerHandleError{ no_connection_possible: false }); - } - }; - } - } - - macro_rules! try_ignore_potential_decodeerror { - ($thing: expr) => { - match $thing { - Ok(x) => x, - Err(_e) => { - log_debug!(self, "Error decoding message, ignoring due to lnd spec incompatibility. See https://github.com/lightningnetwork/lnd/issues/1407"); - continue; + Err(e) => { + match e { + msgs::DecodeError::UnknownRealmByte => 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 udpate!"); + continue; + }, + msgs::DecodeError::BadPublicKey => return Err(PeerHandleError{ no_connection_possible: false }), + msgs::DecodeError::BadSignature => return Err(PeerHandleError{ no_connection_possible: false }), + msgs::DecodeError::BadText => return Err(PeerHandleError{ no_connection_possible: false }), + msgs::DecodeError::ShortRead => 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"); + continue; + }, + msgs::DecodeError::BadLengthDescriptor => return Err(PeerHandleError{ no_connection_possible: false }), + } } }; } @@ -430,7 +433,24 @@ impl PeerManager { } }, 17 => { - // Error msg + let msg = try_potential_decodeerror!(msgs::ErrorMessage::decode(&msg_data[2..])); + 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, "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())); + } + self.message_handler.chan_handler.handle_error(&peer.their_node_id.unwrap(), &msg); + if msg.channel_id == [0; 32] { + return Err(PeerHandleError{ no_connection_possible: true }); + } }, 18 => { @@ -558,12 +578,20 @@ impl PeerManager { } }, 257 => { - let msg = try_ignore_potential_decodeerror!(msgs::NodeAnnouncement::decode(&msg_data[2..])); - try_potential_handleerror!(self.message_handler.route_handler.handle_node_announcement(&msg)); + let msg = try_potential_decodeerror!(msgs::NodeAnnouncement::decode(&msg_data[2..])); + 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! + } }, 258 => { let msg = try_potential_decodeerror!(msgs::ChannelUpdate::decode(&msg_data[2..])); - try_potential_handleerror!(self.message_handler.route_handler.handle_channel_update(&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! + } }, _ => { if (msg_type & 1) == 0 { @@ -620,6 +648,10 @@ impl PeerManager { }; match peers.peers.get_mut(&descriptor) { Some(peer) => { + if peer.their_global_features.is_none() { + $handle_no_such_peer; + continue; + } (descriptor, peer) }, None => panic!("Inconsistent peers set state!"), @@ -675,44 +707,29 @@ impl PeerManager { Self::do_attempt_write_data(&mut descriptor, peer); continue; }, - Event::SendHTLCs { ref node_id, ref msgs, ref commitment_msg } => { - log_trace!(self, "Handling SendHTLCs event in peer_handler for node {} with {} HTLCs for channel {}", + Event::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 commitment_signed } } => { + log_trace!(self, "Handling UpdateHTLCs event in peer_handler for node {} with {} adds, {} fulfills, {} fails for channel {}", log_pubkey!(node_id), - msgs.len(), - log_bytes!(commitment_msg.channel_id)); + update_add_htlcs.len(), + update_fulfill_htlcs.len(), + update_fail_htlcs.len(), + log_bytes!(commitment_signed.channel_id)); let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, { //TODO: Do whatever we're gonna do for handling dropped messages }); - for msg in msgs { + 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!(commitment_msg, 132))); - Self::do_attempt_write_data(&mut descriptor, peer); - continue; - }, - Event::SendFulfillHTLC { ref node_id, ref msg, ref commitment_msg } => { - log_trace!(self, "Handling SendFulfillHTLCs event in peer_handler for node {} with payment_preimage {} for channel {}", - log_pubkey!(node_id), - log_bytes!(msg.payment_preimage), - log_bytes!(msg.channel_id)); - let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, { - //TODO: Do whatever we're gonna do for handling dropped messages - }); - 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!(commitment_msg, 132))); - Self::do_attempt_write_data(&mut descriptor, peer); - continue; - }, - Event::SendFailHTLC { ref node_id, ref msg, ref commitment_msg } => { - log_trace!(self, "Handling SendFailHTLCs event in peer_handler for node {} for HTLC ID {} for channel {}", - log_pubkey!(node_id), - msg.htlc_id, - log_bytes!(msg.channel_id)); - let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, { - //TODO: Do whatever we're gonna do for handling dropped messages - }); - 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!(commitment_msg, 132))); + for msg in update_fulfill_htlcs { + peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 130))); + } + for msg in update_fail_htlcs { + peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 131))); + } + 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!(commitment_signed, 132))); Self::do_attempt_write_data(&mut descriptor, peer); continue; }, @@ -734,7 +751,7 @@ impl PeerManager { 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() { + if !peer.channel_encryptor.is_ready_for_encryption() || peer.their_global_features.is_none() { continue } match peer.their_node_id { @@ -758,7 +775,7 @@ impl PeerManager { let encoded_msg = encode_msg!(msg, 258); for (ref descriptor, ref mut peer) in peers.peers.iter_mut() { - if !peer.channel_encryptor.is_ready_for_encryption() { + if !peer.channel_encryptor.is_ready_for_encryption() || peer.their_global_features.is_none() { continue } peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encoded_msg[..])); @@ -770,18 +787,6 @@ impl PeerManager { Event::HandleError { ref node_id, ref action } => { if let Some(ref action) = *action { match *action { - msgs::ErrorAction::UpdateFailHTLC { ref msg } => { - log_trace!(self, "Handling UpdateFailHTLC HandleError event in peer_handler for node {} for HTLC ID {} for channel {}", - log_pubkey!(node_id), - msg.htlc_id, - log_bytes!(msg.channel_id)); - let (mut descriptor, peer) = get_peer_for_forwarding!(node_id, { - //TODO: Do whatever we're gonna do for handling dropped messages - }); - peer.pending_outbound_buffer.push_back(peer.channel_encryptor.encrypt_message(&encode_msg!(msg, 131))); - Self::do_attempt_write_data(&mut descriptor, peer); - - }, msgs::ErrorAction::DisconnectPeer { ref msg } => { if let Some(mut descriptor) = peers.node_id_to_descriptor.remove(node_id) { if let Some(mut peer) = peers.peers.remove(&descriptor) { @@ -920,7 +925,7 @@ mod tests { fn establish_connection(peer_a: &PeerManager, peer_b: &PeerManager) { let secp_ctx = Secp256k1::new(); - let their_id = PublicKey::from_secret_key(&secp_ctx, &peer_b.our_node_secret).unwrap(); + let their_id = PublicKey::from_secret_key(&secp_ctx, &peer_b.our_node_secret); let fd = FileDescriptor { fd: 1}; peer_a.new_inbound_connection(fd.clone()).unwrap(); peer_a.peers.lock().unwrap().node_id_to_descriptor.insert(their_id, fd.clone()); @@ -935,7 +940,7 @@ mod tests { assert_eq!(peers[0].peers.lock().unwrap().peers.len(), 1); let secp_ctx = Secp256k1::new(); - let their_id = PublicKey::from_secret_key(&secp_ctx, &peers[1].our_node_secret).unwrap(); + let their_id = PublicKey::from_secret_key(&secp_ctx, &peers[1].our_node_secret); let chan_handler = test_utils::TestChannelMessageHandler::new(); chan_handler.pending_events.lock().unwrap().push(events::Event::HandleError {