From 1ab25a086af3703c2ad21f7becb00a5d01769691 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Viktor=20Tigerstr=C3=B6m?= <11711198+ViktorTigerstrom@users.noreply.github.com> Date: Sat, 26 Nov 2022 09:02:20 +0100 Subject: [PATCH] Store channels per peer --- lightning/src/ln/chanmon_update_fail_tests.rs | 16 +- lightning/src/ln/channelmanager.rs | 2432 ++++++++++------- lightning/src/ln/functional_test_utils.rs | 29 +- lightning/src/ln/functional_tests.rs | 98 +- lightning/src/ln/onion_route_tests.rs | 4 +- lightning/src/ln/payment_tests.rs | 41 +- lightning/src/ln/reorg_tests.rs | 21 +- lightning/src/ln/shutdown_tests.rs | 5 +- 8 files changed, 1523 insertions(+), 1123 deletions(-) diff --git a/lightning/src/ln/chanmon_update_fail_tests.rs b/lightning/src/ln/chanmon_update_fail_tests.rs index 914e5d9a2..eb634229d 100644 --- a/lightning/src/ln/chanmon_update_fail_tests.rs +++ b/lightning/src/ln/chanmon_update_fail_tests.rs @@ -139,7 +139,10 @@ fn test_monitor_and_persister_update_fail() { let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); assert_eq!(updates.update_fulfill_htlcs.len(), 1); nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]); - if let Some(ref mut channel) = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan.2) { + { + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let mut channel = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan.2); if let Ok((_, _, update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) { // Check that even though the persister is returning a InProgress, // because the update is bogus, ultimately the error that's returned @@ -148,7 +151,7 @@ fn test_monitor_and_persister_update_fail() { logger.assert_log_regex("lightning::chain::chainmonitor".to_string(), regex::Regex::new("Persistence of ChannelMonitorUpdate for channel [0-9a-f]* in progress").unwrap(), 1); assert_eq!(nodes[0].chain_monitor.update_channel(outpoint, update), ChannelMonitorUpdateStatus::Completed); } else { assert!(false); } - } else { assert!(false); }; + } check_added_monitors!(nodes[0], 1); let events = nodes[0].node.get_and_clear_pending_events(); @@ -1415,9 +1418,12 @@ fn monitor_failed_no_reestablish_response() { let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs); let channel_id = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features()).2; { - let mut lock; - get_channel_ref!(nodes[0], lock, channel_id).announcement_sigs_state = AnnouncementSigsState::PeerReceived; - get_channel_ref!(nodes[1], lock, channel_id).announcement_sigs_state = AnnouncementSigsState::PeerReceived; + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let mut node_1_per_peer_lock; + let mut node_1_peer_state_lock; + get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, channel_id).announcement_sigs_state = AnnouncementSigsState::PeerReceived; + get_channel_ref!(nodes[1], nodes[0], node_1_per_peer_lock, node_1_peer_state_lock, channel_id).announcement_sigs_state = AnnouncementSigsState::PeerReceived; } // Route the payment and deliver the initial commitment_signed (with a monitor update failure diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs index 0bad0111a..0a88f97e5 100644 --- a/lightning/src/ln/channelmanager.rs +++ b/lightning/src/ln/channelmanager.rs @@ -293,10 +293,10 @@ struct ReceiveError { type ShutdownResult = (Option<(OutPoint, ChannelMonitorUpdate)>, Vec<(HTLCSource, PaymentHash, PublicKey, [u8; 32])>); -/// Error type returned across the channel_state mutex boundary. When an Err is generated for a +/// Error type returned across the peer_state mutex boundary. When an Err is generated for a /// Channel, we generally end up with a ChannelError::Close for which we have to close the channel /// immediately (ie with no further calls on it made). Thus, this step happens inside a -/// channel_state lock. We then return the set of things that need to be done outside the lock in +/// peer_state lock. We then return the set of things that need to be done outside the lock in /// this struct and call handle_error!() on it. struct MsgHandleErrInternal { @@ -435,8 +435,7 @@ struct ClaimablePayments { } // Note this is only exposed in cfg(test): -pub(super) struct ChannelHolder { - pub(super) by_id: HashMap<[u8; 32], Channel>, +pub(super) struct ChannelHolder { /// Messages to send to peers - pushed to in the same lock that they are generated in (except /// for broadcast messages, where ordering isn't as strict). pub(super) pending_msg_events: Vec, @@ -461,9 +460,14 @@ pub(crate) enum MonitorUpdateCompletionAction { EmitEvent { event: events::Event }, } -/// State we hold per-peer. In the future we should put channels in here, but for now we only hold -/// the latest Init features we heard from the peer. -struct PeerState { +/// State we hold per-peer. +pub(super) struct PeerState { + /// `temporary_channel_id` or `channel_id` -> `channel`. + /// + /// Holds all channels where the peer is the counterparty. Once a channel has been assigned a + /// `channel_id`, the `temporary_channel_id` key in the map is updated and is replaced by the + /// `channel_id`. + pub(super) channel_by_id: HashMap<[u8; 32], Channel>, /// The latest `InitFeatures` we heard from the peer. latest_features: InitFeatures, } @@ -583,19 +587,21 @@ pub type SimpleRefChannelManager<'a, 'b, 'c, 'd, 'e, 'f, 'g, 'h, M, T, F, L> = C // | | // | |__`channel_state` // | | -// | |__`id_to_peer` -// | | -// | |__`short_to_chan_info` -// | | // | |__`per_peer_state` // | | -// | |__`outbound_scid_aliases` -// | | -// | |__`best_block` -// | | -// | |__`pending_events` +// | |__`peer_state` +// | | +// | |__`id_to_peer` +// | | +// | |__`short_to_chan_info` +// | | +// | |__`outbound_scid_aliases` // | | -// | |__`pending_background_events` +// | |__`best_block` +// | | +// | |__`pending_events` +// | | +// | |__`pending_background_events` // pub struct ChannelManager where @@ -623,9 +629,9 @@ where /// See `ChannelManager` struct-level documentation for lock order requirements. #[cfg(any(test, feature = "_test_utils"))] - pub(super) channel_state: Mutex::Signer>>, + pub(super) channel_state: Mutex, #[cfg(not(any(test, feature = "_test_utils")))] - channel_state: Mutex::Signer>>, + channel_state: Mutex, /// Storage for PaymentSecrets and any requirements on future inbound payments before we will /// expose them to users via a PaymentClaimable event. HTLCs which do not meet the requirements @@ -742,15 +748,24 @@ where /// very far in the past, and can only ever be up to two hours in the future. highest_seen_timestamp: AtomicUsize, - /// The bulk of our storage will eventually be here (channels and message queues and the like). + /// The bulk of our storage will eventually be here (message queues and the like). Currently + /// the `per_peer_state` stores our channels on a per-peer basis, as well as the peer's latest + /// features. + /// /// If we are connected to a peer we always at least have an entry here, even if no channels /// are currently open with that peer. + /// /// Because adding or removing an entry is rare, we usually take an outer read lock and then - /// operate on the inner value freely. Sadly, this prevents parallel operation when opening a - /// new channel. + /// operate on the inner value freely. This opens up for parallel per-peer operation for + /// channels. + /// + /// Note that the same thread must never acquire two inner `PeerState` locks at the same time. /// /// See `ChannelManager` struct-level documentation for lock order requirements. - per_peer_state: RwLock>>, + #[cfg(not(any(test, feature = "_test_utils")))] + per_peer_state: FairRwLock::Signer>>>>, + #[cfg(any(test, feature = "_test_utils"))] + pub(super) per_peer_state: FairRwLock::Signer>>>>, /// See `ChannelManager` struct-level documentation for lock order requirements. pending_events: Mutex>, @@ -1411,7 +1426,6 @@ where best_block: RwLock::new(params.best_block), channel_state: Mutex::new(ChannelHolder{ - by_id: HashMap::new(), pending_msg_events: Vec::new(), }), outbound_scid_aliases: Mutex::new(HashSet::new()), @@ -1434,7 +1448,7 @@ where highest_seen_timestamp: AtomicUsize::new(0), - per_peer_state: RwLock::new(HashMap::new()), + per_peer_state: FairRwLock::new(HashMap::new()), pending_events: Mutex::new(Vec::new()), pending_background_events: Mutex::new(Vec::new()), @@ -1531,7 +1545,11 @@ where let temporary_channel_id = channel.channel_id(); let mut channel_state = self.channel_state.lock().unwrap(); - match channel_state.by_id.entry(temporary_channel_id) { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(&their_network_key){ + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(temporary_channel_id) { hash_map::Entry::Occupied(_) => { if cfg!(fuzzing) { return Err(APIError::APIMisuseError { err: "Fuzzy bad RNG".to_owned() }); @@ -1540,7 +1558,8 @@ where } }, hash_map::Entry::Vacant(entry) => { entry.insert(channel); } - } + } + } else { return Err(APIError::ChannelUnavailable { err: format!("Not connected to node: {}", their_network_key) }) } channel_state.pending_msg_events.push(events::MessageSendEvent::SendOpenChannel { node_id: their_network_key, msg: res, @@ -1548,57 +1567,67 @@ where Ok(temporary_channel_id) } - fn list_channels_with_filter::Signer>)) -> bool>(&self, f: Fn) -> Vec { + fn list_channels_with_filter::Signer>)) -> bool + Copy>(&self, f: Fn) -> Vec { let mut res = Vec::new(); + // Allocate our best estimate of the number of channels we have in the `res` + // Vec. Sadly the `short_to_chan_info` map doesn't cover channels without + // a scid or a scid alias, and the `id_to_peer` shouldn't be used outside + // of the ChannelMonitor handling. Therefore reallocations may still occur, but is + // unlikely as the `short_to_chan_info` map often contains 2 entries for + // the same channel. + res.reserve(self.short_to_chan_info.read().unwrap().len()); { - let channel_state = self.channel_state.lock().unwrap(); let best_block_height = self.best_block.read().unwrap().height(); - res.reserve(channel_state.by_id.len()); - for (channel_id, channel) in channel_state.by_id.iter().filter(f) { - let balance = channel.get_available_balances(); - let (to_remote_reserve_satoshis, to_self_reserve_satoshis) = - channel.get_holder_counterparty_selected_channel_reserve_satoshis(); - res.push(ChannelDetails { - channel_id: (*channel_id).clone(), - counterparty: ChannelCounterparty { - node_id: channel.get_counterparty_node_id(), - features: InitFeatures::empty(), - unspendable_punishment_reserve: to_remote_reserve_satoshis, - forwarding_info: channel.counterparty_forwarding_info(), - // Ensures that we have actually received the `htlc_minimum_msat` value - // from the counterparty through the `OpenChannel` or `AcceptChannel` - // message (as they are always the first message from the counterparty). - // Else `Channel::get_counterparty_htlc_minimum_msat` could return the - // default `0` value set by `Channel::new_outbound`. - outbound_htlc_minimum_msat: if channel.have_received_message() { - Some(channel.get_counterparty_htlc_minimum_msat()) } else { None }, - outbound_htlc_maximum_msat: channel.get_counterparty_htlc_maximum_msat(), - }, - funding_txo: channel.get_funding_txo(), - // Note that accept_channel (or open_channel) is always the first message, so - // `have_received_message` indicates that type negotiation has completed. - channel_type: if channel.have_received_message() { Some(channel.get_channel_type().clone()) } else { None }, - short_channel_id: channel.get_short_channel_id(), - outbound_scid_alias: if channel.is_usable() { Some(channel.outbound_scid_alias()) } else { None }, - inbound_scid_alias: channel.latest_inbound_scid_alias(), - channel_value_satoshis: channel.get_value_satoshis(), - unspendable_punishment_reserve: to_self_reserve_satoshis, - balance_msat: balance.balance_msat, - inbound_capacity_msat: balance.inbound_capacity_msat, - outbound_capacity_msat: balance.outbound_capacity_msat, - next_outbound_htlc_limit_msat: balance.next_outbound_htlc_limit_msat, - user_channel_id: channel.get_user_id(), - confirmations_required: channel.minimum_depth(), - confirmations: Some(channel.get_funding_tx_confirmations(best_block_height)), - force_close_spend_delay: channel.get_counterparty_selected_contest_delay(), - is_outbound: channel.is_outbound(), - is_channel_ready: channel.is_usable(), - is_usable: channel.is_live(), - is_public: channel.should_announce(), - inbound_htlc_minimum_msat: Some(channel.get_holder_htlc_minimum_msat()), - inbound_htlc_maximum_msat: channel.get_holder_htlc_maximum_msat(), - config: Some(channel.config()), - }); + let per_peer_state = self.per_peer_state.read().unwrap(); + for (_cp_id, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + for (channel_id, channel) in peer_state.channel_by_id.iter().filter(f) { + let balance = channel.get_available_balances(); + let (to_remote_reserve_satoshis, to_self_reserve_satoshis) = + channel.get_holder_counterparty_selected_channel_reserve_satoshis(); + res.push(ChannelDetails { + channel_id: (*channel_id).clone(), + counterparty: ChannelCounterparty { + node_id: channel.get_counterparty_node_id(), + features: InitFeatures::empty(), + unspendable_punishment_reserve: to_remote_reserve_satoshis, + forwarding_info: channel.counterparty_forwarding_info(), + // Ensures that we have actually received the `htlc_minimum_msat` value + // from the counterparty through the `OpenChannel` or `AcceptChannel` + // message (as they are always the first message from the counterparty). + // Else `Channel::get_counterparty_htlc_minimum_msat` could return the + // default `0` value set by `Channel::new_outbound`. + outbound_htlc_minimum_msat: if channel.have_received_message() { + Some(channel.get_counterparty_htlc_minimum_msat()) } else { None }, + outbound_htlc_maximum_msat: channel.get_counterparty_htlc_maximum_msat(), + }, + funding_txo: channel.get_funding_txo(), + // Note that accept_channel (or open_channel) is always the first message, so + // `have_received_message` indicates that type negotiation has completed. + channel_type: if channel.have_received_message() { Some(channel.get_channel_type().clone()) } else { None }, + short_channel_id: channel.get_short_channel_id(), + outbound_scid_alias: if channel.is_usable() { Some(channel.outbound_scid_alias()) } else { None }, + inbound_scid_alias: channel.latest_inbound_scid_alias(), + channel_value_satoshis: channel.get_value_satoshis(), + unspendable_punishment_reserve: to_self_reserve_satoshis, + balance_msat: balance.balance_msat, + inbound_capacity_msat: balance.inbound_capacity_msat, + outbound_capacity_msat: balance.outbound_capacity_msat, + next_outbound_htlc_limit_msat: balance.next_outbound_htlc_limit_msat, + user_channel_id: channel.get_user_id(), + confirmations_required: channel.minimum_depth(), + confirmations: Some(channel.get_funding_tx_confirmations(best_block_height)), + force_close_spend_delay: channel.get_counterparty_selected_contest_delay(), + is_outbound: channel.is_outbound(), + is_channel_ready: channel.is_usable(), + is_usable: channel.is_live(), + is_public: channel.should_announce(), + inbound_htlc_minimum_msat: Some(channel.get_holder_htlc_minimum_msat()), + inbound_htlc_maximum_msat: channel.get_holder_htlc_maximum_msat(), + config: Some(channel.config()), + }); + } } } let per_peer_state = self.per_peer_state.read().unwrap(); @@ -1654,52 +1683,49 @@ where let result: Result<(), _> = loop { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(channel_id.clone()) { - hash_map::Entry::Occupied(mut chan_entry) => { - if *counterparty_node_id != chan_entry.get().get_counterparty_node_id(){ - return Err(APIError::APIMisuseError { err: "The passed counterparty_node_id doesn't match the channel's counterparty node_id".to_owned() }); - } - let (shutdown_msg, monitor_update, htlcs) = { - let per_peer_state = self.per_peer_state.read().unwrap(); - match per_peer_state.get(&counterparty_node_id) { - Some(peer_state) => { - let peer_state = peer_state.lock().unwrap(); - let their_features = &peer_state.latest_features; - chan_entry.get_mut().get_shutdown(&self.keys_manager, their_features, target_feerate_sats_per_1000_weight)? - }, - None => return Err(APIError::ChannelUnavailable { err: format!("Not connected to node: {}", counterparty_node_id) }), + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(channel_id.clone()) { + hash_map::Entry::Occupied(mut chan_entry) => { + if *counterparty_node_id != chan_entry.get().get_counterparty_node_id(){ + return Err(APIError::APIMisuseError { err: "The passed counterparty_node_id doesn't match the channel's counterparty node_id".to_owned() }); } - }; - failed_htlcs = htlcs; - - // Update the monitor with the shutdown script if necessary. - if let Some(monitor_update) = monitor_update { - let update_res = self.chain_monitor.update_channel(chan_entry.get().get_funding_txo().unwrap(), monitor_update); - let (result, is_permanent) = - handle_monitor_update_res!(self, update_res, chan_entry.get_mut(), RAACommitmentOrder::CommitmentFirst, chan_entry.key(), NO_UPDATE); - if is_permanent { - remove_channel!(self, chan_entry); - break result; + let (shutdown_msg, monitor_update, htlcs) = chan_entry.get_mut().get_shutdown(&self.keys_manager, &peer_state.latest_features, target_feerate_sats_per_1000_weight)?; + failed_htlcs = htlcs; + + // Update the monitor with the shutdown script if necessary. + if let Some(monitor_update) = monitor_update { + let update_res = self.chain_monitor.update_channel(chan_entry.get().get_funding_txo().unwrap(), monitor_update); + let (result, is_permanent) = + handle_monitor_update_res!(self, update_res, chan_entry.get_mut(), RAACommitmentOrder::CommitmentFirst, chan_entry.key(), NO_UPDATE); + if is_permanent { + remove_channel!(self, chan_entry); + break result; + } } - } - channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown { - node_id: *counterparty_node_id, - msg: shutdown_msg - }); + channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown { + node_id: *counterparty_node_id, + msg: shutdown_msg + }); - if chan_entry.get().is_shutdown() { - let channel = remove_channel!(self, chan_entry); - if let Ok(channel_update) = self.get_channel_update_for_broadcast(&channel) { - channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { - msg: channel_update - }); + if chan_entry.get().is_shutdown() { + let channel = remove_channel!(self, chan_entry); + if let Ok(channel_update) = self.get_channel_update_for_broadcast(&channel) { + channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { + msg: channel_update + }); + } + self.issue_channel_close_events(&channel, ClosureReason::HolderForceClosed); } - self.issue_channel_close_events(&channel, ClosureReason::HolderForceClosed); - } - break Ok(()); - }, - hash_map::Entry::Vacant(_) => return Err(APIError::ChannelUnavailable{err: "No such channel".to_owned()}) + break Ok(()); + }, + hash_map::Entry::Vacant(_) => return Err(APIError::ChannelUnavailable { err: "No such channel".to_owned() }) + } + } else { + return Err(APIError::ChannelUnavailable { err: format!("Not connected to node: {}", counterparty_node_id) }); } }; @@ -1781,20 +1807,25 @@ where fn force_close_channel_with_peer(&self, channel_id: &[u8; 32], peer_node_id: &PublicKey, peer_msg: Option<&String>, broadcast: bool) -> Result { let mut chan = { - let mut channel_state_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_state_lock; - if let hash_map::Entry::Occupied(chan) = channel_state.by_id.entry(channel_id.clone()) { - if chan.get().get_counterparty_node_id() != *peer_node_id { - return Err(APIError::ChannelUnavailable{err: "No such channel".to_owned()}); - } - if let Some(peer_msg) = peer_msg { - self.issue_channel_close_events(chan.get(),ClosureReason::CounterpartyForceClosed { peer_msg: peer_msg.to_string() }); + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(peer_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + if let hash_map::Entry::Occupied(chan) = peer_state.channel_by_id.entry(channel_id.clone()) { + if chan.get().get_counterparty_node_id() != *peer_node_id { + return Err(APIError::ChannelUnavailable{err: "No such channel".to_owned()}); + } + if let Some(peer_msg) = peer_msg { + self.issue_channel_close_events(chan.get(),ClosureReason::CounterpartyForceClosed { peer_msg: peer_msg.to_string() }); + } else { + self.issue_channel_close_events(chan.get(),ClosureReason::HolderForceClosed); + } + remove_channel!(self, chan) } else { - self.issue_channel_close_events(chan.get(),ClosureReason::HolderForceClosed); + return Err(APIError::ChannelUnavailable{err: "No such channel".to_owned()}); } - remove_channel!(self, chan) } else { - return Err(APIError::ChannelUnavailable{err: "No such channel".to_owned()}); + return Err(APIError::APIMisuseError{ err: format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", peer_node_id) }); } }; log_error!(self.logger, "Force-closing channel {}", log_bytes!(channel_id[..])); @@ -2062,8 +2093,7 @@ where if let &PendingHTLCRouting::Forward { ref short_channel_id, .. } = routing { if let Some((err, mut code, chan_update)) = loop { let id_option = self.short_to_chan_info.read().unwrap().get(&short_channel_id).cloned(); - let mut channel_state = self.channel_state.lock().unwrap(); - let forwarding_id_opt = match id_option { + let forwarding_chan_info_opt = match id_option { None => { // unknown_next_peer // Note that this is likely a timing oracle for detecting whether an scid is a // phantom or an intercept. @@ -2076,13 +2106,20 @@ where break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None)); } }, - Some((_cp_id, chan_id)) => Some(chan_id.clone()), + Some((cp_id, id)) => Some((cp_id.clone(), id.clone())), }; - let chan_update_opt = if let Some(forwarding_id) = forwarding_id_opt { - let chan = match channel_state.by_id.get_mut(&forwarding_id) { + let chan_update_opt = if let Some((counterparty_node_id, forwarding_id)) = forwarding_chan_info_opt { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let None = per_peer_state.get(&counterparty_node_id) { + break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None)); + } + let peer_state_mutex = per_peer_state.get(&counterparty_node_id).unwrap(); + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + let chan = match peer_state.channel_by_id.get_mut(&forwarding_id) { None => { - // Channel was removed. The short_to_chan_info and by_id maps have - // no consistency guarantees. + // Channel was removed. The short_to_chan_info and channel_by_id maps + // have no consistency guarantees. break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None)); }, Some(chan) => chan @@ -2188,7 +2225,7 @@ where /// public, and thus should be called whenever the result is going to be passed out in a /// [`MessageSendEvent::BroadcastChannelUpdate`] event. /// - /// May be called with channel_state already locked! + /// May be called with peer_state already locked! fn get_channel_update_for_broadcast(&self, chan: &Channel<::Signer>) -> Result { if !chan.should_announce() { return Err(LightningError { @@ -2207,7 +2244,7 @@ where /// is public (only returning an Err if the channel does not yet have an assigned short_id), /// and thus MUST NOT be called unless the recipient of the resulting message has already /// provided evidence that they know about the existence of the channel. - /// May be called with channel_state already locked! + /// May be called with peer_state already locked! fn get_channel_update_for_unicast(&self, chan: &Channel<::Signer>) -> Result { log_trace!(self.logger, "Attempting to generate channel update for channel {}", log_bytes!(chan.channel_id())); let short_channel_id = match chan.get_short_channel_id().or(chan.latest_inbound_scid_alias()) { @@ -2260,74 +2297,77 @@ where let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier); let err: Result<(), _> = loop { - let id = match self.short_to_chan_info.read().unwrap().get(&path.first().unwrap().short_channel_id) { + let (counterparty_node_id, id) = match self.short_to_chan_info.read().unwrap().get(&path.first().unwrap().short_channel_id) { None => return Err(APIError::ChannelUnavailable{err: "No channel available with first hop!".to_owned()}), - Some((_cp_id, chan_id)) => chan_id.clone(), + Some((cp_id, chan_id)) => (cp_id.clone(), chan_id.clone()), }; let mut channel_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_lock; - if let hash_map::Entry::Occupied(mut chan) = channel_state.by_id.entry(id) { - match { - if chan.get().get_counterparty_node_id() != path.first().unwrap().pubkey { - return Err(APIError::InvalidRoute{err: "Node ID mismatch on first hop!"}); - } - if !chan.get().is_live() { - return Err(APIError::ChannelUnavailable{err: "Peer for first hop currently disconnected/pending monitor update!".to_owned()}); - } - break_chan_entry!(self, chan.get_mut().send_htlc_and_commit( - htlc_msat, payment_hash.clone(), htlc_cltv, HTLCSource::OutboundRoute { - path: path.clone(), - session_priv: session_priv.clone(), - first_hop_htlc_msat: htlc_msat, - payment_id, - payment_secret: payment_secret.clone(), - payment_params: payment_params.clone(), - }, onion_packet, &self.logger), - chan) - } { - Some((update_add, commitment_signed, monitor_update)) => { - let update_err = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update); - let chan_id = chan.get().channel_id(); - match (update_err, - handle_monitor_update_res!(self, update_err, chan, - RAACommitmentOrder::CommitmentFirst, false, true)) - { - (ChannelMonitorUpdateStatus::PermanentFailure, Err(e)) => break Err(e), - (ChannelMonitorUpdateStatus::Completed, Ok(())) => {}, - (ChannelMonitorUpdateStatus::InProgress, Err(_)) => { - // Note that MonitorUpdateInProgress here indicates (per function - // docs) that we will resend the commitment update once monitor - // updating completes. Therefore, we must return an error - // indicating that it is unsafe to retry the payment wholesale, - // which we do in the send_payment check for - // MonitorUpdateInProgress, below. - return Err(APIError::MonitorUpdateInProgress); - }, - _ => unreachable!(), + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(&counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + if let hash_map::Entry::Occupied(mut chan) = peer_state.channel_by_id.entry(id) { + match { + if !chan.get().is_live() { + return Err(APIError::ChannelUnavailable{err: "Peer for first hop currently disconnected/pending monitor update!".to_owned()}); } + break_chan_entry!(self, chan.get_mut().send_htlc_and_commit( + htlc_msat, payment_hash.clone(), htlc_cltv, HTLCSource::OutboundRoute { + path: path.clone(), + session_priv: session_priv.clone(), + first_hop_htlc_msat: htlc_msat, + payment_id, + payment_secret: payment_secret.clone(), + payment_params: payment_params.clone(), + }, onion_packet, &self.logger), + chan) + } { + Some((update_add, commitment_signed, monitor_update)) => { + let update_err = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update); + let chan_id = chan.get().channel_id(); + match (update_err, + handle_monitor_update_res!(self, update_err, chan, + RAACommitmentOrder::CommitmentFirst, false, true)) + { + (ChannelMonitorUpdateStatus::PermanentFailure, Err(e)) => break Err(e), + (ChannelMonitorUpdateStatus::Completed, Ok(())) => {}, + (ChannelMonitorUpdateStatus::InProgress, Err(_)) => { + // Note that MonitorUpdateInProgress here indicates (per function + // docs) that we will resend the commitment update once monitor + // updating completes. Therefore, we must return an error + // indicating that it is unsafe to retry the payment wholesale, + // which we do in the send_payment check for + // MonitorUpdateInProgress, below. + return Err(APIError::MonitorUpdateInProgress); + }, + _ => unreachable!(), + } - log_debug!(self.logger, "Sending payment along path resulted in a commitment_signed for channel {}", log_bytes!(chan_id)); - channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { - node_id: path.first().unwrap().pubkey, - updates: msgs::CommitmentUpdate { - update_add_htlcs: vec![update_add], - update_fulfill_htlcs: Vec::new(), - update_fail_htlcs: Vec::new(), - update_fail_malformed_htlcs: Vec::new(), - update_fee: None, - commitment_signed, - }, - }); - }, - None => { }, + log_debug!(self.logger, "Sending payment along path resulted in a commitment_signed for channel {}", log_bytes!(chan_id)); + channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { + node_id: path.first().unwrap().pubkey, + updates: msgs::CommitmentUpdate { + update_add_htlcs: vec![update_add], + update_fulfill_htlcs: Vec::new(), + update_fail_htlcs: Vec::new(), + update_fail_malformed_htlcs: Vec::new(), + update_fee: None, + commitment_signed, + }, + }); + }, + None => { }, + } + } else { + // The channel was likely removed after we fetched the id from the + // `short_to_chan_info` map, but before we successfully locked the + // `channel_by_id` map. + // This can occur as no consistency guarantees exists between the two maps. + return Err(APIError::ChannelUnavailable{err: "No channel available with first hop!".to_owned()}); } - } else { - // The channel was likely removed after we fetched the id from the - // `short_to_chan_info` map, but before we successfully locked the `by_id` map. - // This can occur as no consistency guarantees exists between the two maps. - return Err(APIError::ChannelUnavailable{err: "No channel available with first hop!".to_owned()}); - } + } else { return Err(APIError::InvalidRoute{err: "No peer matching the path's first hop found!" })} return Ok(()); }; @@ -2497,20 +2537,29 @@ where /// Handles the generation of a funding transaction, optionally (for tests) with a function /// which checks the correctness of the funding transaction given the associated channel. fn funding_transaction_generated_intern::Signer>, &Transaction) -> Result>( - &self, temporary_channel_id: &[u8; 32], _counterparty_node_id: &PublicKey, funding_transaction: Transaction, find_funding_output: FundingOutput + &self, temporary_channel_id: &[u8; 32], counterparty_node_id: &PublicKey, funding_transaction: Transaction, find_funding_output: FundingOutput ) -> Result<(), APIError> { let (chan, msg) = { - let (res, chan) = match self.channel_state.lock().unwrap().by_id.remove(temporary_channel_id) { - Some(mut chan) => { - let funding_txo = find_funding_output(&chan, &funding_transaction)?; - - (chan.get_outbound_funding_created(funding_transaction, funding_txo, &self.logger) - .map_err(|e| if let ChannelError::Close(msg) = e { - MsgHandleErrInternal::from_finish_shutdown(msg, chan.channel_id(), chan.get_user_id(), chan.force_shutdown(true), None) - } else { unreachable!(); }) - , chan) - }, - None => { return Err(APIError::ChannelUnavailable { err: "No such channel".to_owned() }) }, + let (res, chan) = { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.remove(temporary_channel_id) { + Some(mut chan) => { + let funding_txo = find_funding_output(&chan, &funding_transaction)?; + + (chan.get_outbound_funding_created(funding_transaction, funding_txo, &self.logger) + .map_err(|e| if let ChannelError::Close(msg) = e { + MsgHandleErrInternal::from_finish_shutdown(msg, chan.channel_id(), chan.get_user_id(), chan.force_shutdown(true), None) + } else { unreachable!(); }) + , chan) + }, + None => { return Err(APIError::ChannelUnavailable { err: "No such channel".to_owned() }) }, + } + } else { + return Err(APIError::APIMisuseError { err: format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id) }) + } }; match handle_error!(self, res, chan.get_counterparty_node_id()) { Ok(funding_msg) => { @@ -2527,18 +2576,24 @@ where node_id: chan.get_counterparty_node_id(), msg, }); - match channel_state.by_id.entry(chan.channel_id()) { - hash_map::Entry::Occupied(_) => { - panic!("Generated duplicate funding txid?"); - }, - hash_map::Entry::Vacant(e) => { - let mut id_to_peer = self.id_to_peer.lock().unwrap(); - if id_to_peer.insert(chan.channel_id(), chan.get_counterparty_node_id()).is_some() { - panic!("id_to_peer map already contained funding txid, which shouldn't be possible"); + mem::drop(channel_state); + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(chan.channel_id()) { + hash_map::Entry::Occupied(_) => { + panic!("Generated duplicate funding txid?"); + }, + hash_map::Entry::Vacant(e) => { + let mut id_to_peer = self.id_to_peer.lock().unwrap(); + if id_to_peer.insert(chan.channel_id(), chan.get_counterparty_node_id()).is_some() { + panic!("id_to_peer map already contained funding txid, which shouldn't be possible"); + } + e.insert(chan); } - e.insert(chan); } - } + } else { return Err(APIError::ChannelUnavailable { err: format!("Peer with counterparty_node_id {} disconnected and closed the channel", counterparty_node_id) }) } Ok(()) } @@ -2664,31 +2719,33 @@ where { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - for channel_id in channel_ids { - let channel_counterparty_node_id = channel_state.by_id.get(channel_id) - .ok_or(APIError::ChannelUnavailable { - err: format!("Channel with ID {} was not found", log_bytes!(*channel_id)), - })? - .get_counterparty_node_id(); - if channel_counterparty_node_id != *counterparty_node_id { - return Err(APIError::APIMisuseError { - err: "counterparty node id mismatch".to_owned(), - }); - } - } - for channel_id in channel_ids { - let channel = channel_state.by_id.get_mut(channel_id).unwrap(); - if !channel.update_config(config) { - continue; + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + for channel_id in channel_ids { + if !peer_state.channel_by_id.contains_key(channel_id) { + return Err(APIError::ChannelUnavailable { + err: format!("Channel with ID {} was not found", log_bytes!(*channel_id)), + }); + } } - if let Ok(msg) = self.get_channel_update_for_broadcast(channel) { - channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { msg }); - } else if let Ok(msg) = self.get_channel_update_for_unicast(channel) { - channel_state.pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate { - node_id: channel.get_counterparty_node_id(), - msg, - }); + for channel_id in channel_ids { + let channel = peer_state.channel_by_id.get_mut(channel_id).unwrap(); + if !channel.update_config(config) { + continue; + } + if let Ok(msg) = self.get_channel_update_for_broadcast(channel) { + channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { msg }); + } else if let Ok(msg) = self.get_channel_update_for_unicast(channel) { + channel_state.pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate { + node_id: channel.get_counterparty_node_id(), + msg, + }); + } } + } else { + return Err(APIError::APIMisuseError{ err: format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id) }); } } Ok(()) @@ -2716,21 +2773,30 @@ where /// [`HTLCIntercepted`]: events::Event::HTLCIntercepted // TODO: when we move to deciding the best outbound channel at forward time, only take // `next_node_id` and not `next_hop_channel_id` - pub fn forward_intercepted_htlc(&self, intercept_id: InterceptId, next_hop_channel_id: &[u8; 32], _next_node_id: PublicKey, amt_to_forward_msat: u64) -> Result<(), APIError> { + pub fn forward_intercepted_htlc(&self, intercept_id: InterceptId, next_hop_channel_id: &[u8; 32], next_node_id: PublicKey, amt_to_forward_msat: u64) -> Result<(), APIError> { let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier); - let next_hop_scid = match self.channel_state.lock().unwrap().by_id.get(next_hop_channel_id) { - Some(chan) => { - if !chan.is_usable() { - return Err(APIError::ChannelUnavailable { - err: format!("Channel with id {} not fully established", log_bytes!(*next_hop_channel_id)) + let next_hop_scid = { + let peer_state_lock = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = peer_state_lock.get(&next_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.get(next_hop_channel_id) { + Some(chan) => { + if !chan.is_usable() { + return Err(APIError::ChannelUnavailable { + err: format!("Channel with id {} not fully established", log_bytes!(*next_hop_channel_id)) + }) + } + chan.get_short_channel_id().unwrap_or(chan.outbound_scid_alias()) + }, + None => return Err(APIError::ChannelUnavailable { + err: format!("Channel with id {} not found", log_bytes!(*next_hop_channel_id)) }) } - chan.get_short_channel_id().unwrap_or(chan.outbound_scid_alias()) - }, - None => return Err(APIError::ChannelUnavailable { - err: format!("Channel with id {} not found", log_bytes!(*next_hop_channel_id)) - }) + } else { + return Err(APIError::APIMisuseError{ err: format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", next_node_id) }); + } }; let payment = self.pending_intercepted_htlcs.lock().unwrap().remove(&intercept_id) @@ -2900,16 +2966,22 @@ where } } } - let forward_chan_id = match self.short_to_chan_info.read().unwrap().get(&short_chan_id) { - Some((_cp_id, chan_id)) => chan_id.clone(), + let (counterparty_node_id, forward_chan_id) = match self.short_to_chan_info.read().unwrap().get(&short_chan_id) { + Some((cp_id, chan_id)) => (cp_id.clone(), chan_id.clone()), None => { forwarding_channel_not_found!(); continue; } }; - let mut channel_state_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(forward_chan_id) { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let None = per_peer_state.get(&counterparty_node_id) { + forwarding_channel_not_found!(); + continue; + } + let peer_state_mutex = per_peer_state.get(&counterparty_node_id).unwrap(); + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(forward_chan_id) { hash_map::Entry::Vacant(_) => { forwarding_channel_not_found!(); continue; @@ -3256,10 +3328,14 @@ where let new_feerate = self.fee_estimator.bounded_sat_per_1000_weight(ConfirmationTarget::Normal); - let mut channel_state = self.channel_state.lock().unwrap(); - for (chan_id, chan) in channel_state.by_id.iter_mut() { - let chan_needs_persist = self.update_channel_fee(chan_id, chan, new_feerate); - if chan_needs_persist == NotifyOption::DoPersist { should_persist = NotifyOption::DoPersist; } + let per_peer_state = self.per_peer_state.read().unwrap(); + for (_cp_id, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + for (chan_id, chan) in peer_state.channel_by_id.iter_mut() { + let chan_needs_persist = self.update_channel_fee(chan_id, chan, new_feerate); + if chan_needs_persist == NotifyOption::DoPersist { should_persist = NotifyOption::DoPersist; } + } } should_persist @@ -3291,46 +3367,51 @@ where let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; let pending_msg_events = &mut channel_state.pending_msg_events; - channel_state.by_id.retain(|chan_id, chan| { - let chan_needs_persist = self.update_channel_fee(chan_id, chan, new_feerate); - if chan_needs_persist == NotifyOption::DoPersist { should_persist = NotifyOption::DoPersist; } - - if let Err(e) = chan.timer_check_closing_negotiation_progress() { - let (needs_close, err) = convert_chan_err!(self, e, chan, chan_id); - handle_errors.push((Err(err), chan.get_counterparty_node_id())); - if needs_close { return false; } - } + let per_peer_state = self.per_peer_state.read().unwrap(); + for (counterparty_node_id, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + peer_state.channel_by_id.retain(|chan_id, chan| { + let chan_needs_persist = self.update_channel_fee(chan_id, chan, new_feerate); + if chan_needs_persist == NotifyOption::DoPersist { should_persist = NotifyOption::DoPersist; } + + if let Err(e) = chan.timer_check_closing_negotiation_progress() { + let (needs_close, err) = convert_chan_err!(self, e, chan, chan_id); + handle_errors.push((Err(err), *counterparty_node_id)); + if needs_close { return false; } + } - match chan.channel_update_status() { - ChannelUpdateStatus::Enabled if !chan.is_live() => chan.set_channel_update_status(ChannelUpdateStatus::DisabledStaged), - ChannelUpdateStatus::Disabled if chan.is_live() => chan.set_channel_update_status(ChannelUpdateStatus::EnabledStaged), - ChannelUpdateStatus::DisabledStaged if chan.is_live() => chan.set_channel_update_status(ChannelUpdateStatus::Enabled), - ChannelUpdateStatus::EnabledStaged if !chan.is_live() => chan.set_channel_update_status(ChannelUpdateStatus::Disabled), - ChannelUpdateStatus::DisabledStaged if !chan.is_live() => { - if let Ok(update) = self.get_channel_update_for_broadcast(&chan) { - pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { - msg: update - }); - } - should_persist = NotifyOption::DoPersist; - chan.set_channel_update_status(ChannelUpdateStatus::Disabled); - }, - ChannelUpdateStatus::EnabledStaged if chan.is_live() => { - if let Ok(update) = self.get_channel_update_for_broadcast(&chan) { - pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { - msg: update - }); - } - should_persist = NotifyOption::DoPersist; - chan.set_channel_update_status(ChannelUpdateStatus::Enabled); - }, - _ => {}, - } + match chan.channel_update_status() { + ChannelUpdateStatus::Enabled if !chan.is_live() => chan.set_channel_update_status(ChannelUpdateStatus::DisabledStaged), + ChannelUpdateStatus::Disabled if chan.is_live() => chan.set_channel_update_status(ChannelUpdateStatus::EnabledStaged), + ChannelUpdateStatus::DisabledStaged if chan.is_live() => chan.set_channel_update_status(ChannelUpdateStatus::Enabled), + ChannelUpdateStatus::EnabledStaged if !chan.is_live() => chan.set_channel_update_status(ChannelUpdateStatus::Disabled), + ChannelUpdateStatus::DisabledStaged if !chan.is_live() => { + if let Ok(update) = self.get_channel_update_for_broadcast(&chan) { + pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { + msg: update + }); + } + should_persist = NotifyOption::DoPersist; + chan.set_channel_update_status(ChannelUpdateStatus::Disabled); + }, + ChannelUpdateStatus::EnabledStaged if chan.is_live() => { + if let Ok(update) = self.get_channel_update_for_broadcast(&chan) { + pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { + msg: update + }); + } + should_persist = NotifyOption::DoPersist; + chan.set_channel_update_status(ChannelUpdateStatus::Enabled); + }, + _ => {}, + } - chan.maybe_expire_prev_config(); + chan.maybe_expire_prev_config(); - true - }); + true + }); + } } self.claimable_payments.lock().unwrap().claimable_htlcs.retain(|payment_hash, (_, htlcs)| { @@ -3462,13 +3543,19 @@ where &self, mut htlcs_to_fail: Vec<(HTLCSource, PaymentHash)>, channel_id: [u8; 32], counterparty_node_id: &PublicKey ) { - let (failure_code, onion_failure_data) = - match self.channel_state.lock().unwrap().by_id.entry(channel_id) { - hash_map::Entry::Occupied(chan_entry) => { - self.get_htlc_inbound_temp_fail_err_and_data(0x1000|7, &chan_entry.get()) - }, - hash_map::Entry::Vacant(_) => (0x4000|10, Vec::new()) - }; + let (failure_code, onion_failure_data) = { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(channel_id) { + hash_map::Entry::Occupied(chan_entry) => { + self.get_htlc_inbound_temp_fail_err_and_data(0x1000|7, &chan_entry.get()) + }, + hash_map::Entry::Vacant(_) => (0x4000|10, Vec::new()) + } + } else { (0x4000|10, Vec::new()) } + }; for (htlc_src, payment_hash) in htlcs_to_fail.drain(..) { let reason = HTLCFailReason::reason(failure_code, onion_failure_data.clone()); @@ -3482,11 +3569,13 @@ where fn fail_htlc_backwards_internal(&self, source: &HTLCSource, payment_hash: &PaymentHash, onion_error: &HTLCFailReason, destination: HTLCDestination) { #[cfg(debug_assertions)] { - // Ensure that the `channel_state` lock is not held when calling this function. + // Ensure that the `channel_state` and no peer state channel storage lock is not held + // when calling this function. // This ensures that future code doesn't introduce a lock_order requirement for - // `forward_htlcs` to be locked after the `channel_state` lock, which calling this - // function with the `channel_state` locked would. + // `forward_htlcs` to be locked after the `channel_state` and `per_peer_state` locks, + // which calling this function with the locks aquired would. assert!(self.channel_state.try_lock().is_ok()); + assert!(self.per_peer_state.try_write().is_ok()); } //TODO: There is a timing attack here where if a node fails an HTLC back to us they can @@ -3602,16 +3691,26 @@ where let mut valid_mpp = true; let mut errs = Vec::new(); let mut channel_state = Some(self.channel_state.lock().unwrap()); + let mut per_peer_state = Some(self.per_peer_state.read().unwrap()); for htlc in sources.iter() { - let chan_id = match self.short_to_chan_info.read().unwrap().get(&htlc.prev_hop.short_channel_id) { - Some((_cp_id, chan_id)) => chan_id.clone(), + let (counterparty_node_id, chan_id) = match self.short_to_chan_info.read().unwrap().get(&htlc.prev_hop.short_channel_id) { + Some((cp_id, chan_id)) => (cp_id.clone(), chan_id.clone()), None => { valid_mpp = false; break; } }; - if let None = channel_state.as_ref().unwrap().by_id.get(&chan_id) { + if let None = per_peer_state.as_ref().unwrap().get(&counterparty_node_id) { + valid_mpp = false; + break; + } + + let peer_state_mutex = per_peer_state.as_ref().unwrap().get(&counterparty_node_id).unwrap(); + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + + if let None = peer_state.channel_by_id.get(&chan_id) { valid_mpp = false; break; } @@ -3622,6 +3721,7 @@ where valid_mpp = false; break; } + expected_amt_msat = Some(htlc.total_msat); if let OnionPayload::Spontaneous(_) = &htlc.onion_payload { // We don't currently support MPP for spontaneous payments, so just check @@ -3638,12 +3738,14 @@ where } if sources.is_empty() || expected_amt_msat.is_none() { mem::drop(channel_state); + mem::drop(per_peer_state); self.claimable_payments.lock().unwrap().pending_claiming_payments.remove(&payment_hash); log_info!(self.logger, "Attempted to claim an incomplete payment which no longer had any available HTLCs!"); return; } if claimable_amt_msat != expected_amt_msat.unwrap() { mem::drop(channel_state); + mem::drop(per_peer_state); self.claimable_payments.lock().unwrap().pending_claiming_payments.remove(&payment_hash); log_info!(self.logger, "Attempted to claim an incomplete payment, expected {} msat, had {} available to claim.", expected_amt_msat.unwrap(), claimable_amt_msat); @@ -3652,8 +3754,9 @@ where if valid_mpp { for htlc in sources.drain(..) { if channel_state.is_none() { channel_state = Some(self.channel_state.lock().unwrap()); } - if let Err((pk, err)) = self.claim_funds_from_hop(channel_state.take().unwrap(), htlc.prev_hop, - payment_preimage, + if per_peer_state.is_none() { per_peer_state = Some(self.per_peer_state.read().unwrap()); } + if let Err((pk, err)) = self.claim_funds_from_hop(channel_state.take().unwrap(), per_peer_state.take().unwrap(), + htlc.prev_hop, payment_preimage, |_| Some(MonitorUpdateCompletionAction::PaymentClaimed { payment_hash })) { if let msgs::ErrorAction::IgnoreError = err.err.action { @@ -3665,6 +3768,7 @@ where } } mem::drop(channel_state); + mem::drop(per_peer_state); if !valid_mpp { for htlc in sources.drain(..) { let mut htlc_msat_height_data = htlc.value.to_be_bytes().to_vec(); @@ -3685,73 +3789,99 @@ where } fn claim_funds_from_hop) -> Option>(&self, - mut channel_state_lock: MutexGuard::Signer>>, + mut channel_state_lock: MutexGuard, + per_peer_state_lock: RwLockReadGuard::Signer>>>>, prev_hop: HTLCPreviousHopData, payment_preimage: PaymentPreimage, completion_action: ComplFunc) -> Result<(), (PublicKey, MsgHandleErrInternal)> { //TODO: Delay the claimed_funds relaying just like we do outbound relay! let chan_id = prev_hop.outpoint.to_channel_id(); let channel_state = &mut *channel_state_lock; - if let hash_map::Entry::Occupied(mut chan) = channel_state.by_id.entry(chan_id) { - let counterparty_node_id = chan.get().get_counterparty_node_id(); - match chan.get_mut().get_update_fulfill_htlc_and_commit(prev_hop.htlc_id, payment_preimage, &self.logger) { - Ok(msgs_monitor_option) => { - if let UpdateFulfillCommitFetch::NewClaim { msgs, htlc_value_msat, monitor_update } = msgs_monitor_option { + + let counterparty_node_id_opt = match self.short_to_chan_info.read().unwrap().get(&prev_hop.short_channel_id) { + Some((cp_id, _dup_chan_id)) => Some(cp_id.clone()), + None => None + }; + + let (found_channel, mut peer_state_opt) = if counterparty_node_id_opt.is_some() && per_peer_state_lock.get(&counterparty_node_id_opt.unwrap()).is_some() { + let peer_mutex = per_peer_state_lock.get(&counterparty_node_id_opt.unwrap()).unwrap(); + let peer_state = peer_mutex.lock().unwrap(); + let found_channel = peer_state.channel_by_id.contains_key(&chan_id); + (found_channel, Some(peer_state)) + } else { (false, None) }; + + if found_channel { + if let hash_map::Entry::Occupied(mut chan) = peer_state_opt.as_mut().unwrap().channel_by_id.entry(chan_id) { + let counterparty_node_id = chan.get().get_counterparty_node_id(); + match chan.get_mut().get_update_fulfill_htlc_and_commit(prev_hop.htlc_id, payment_preimage, &self.logger) { + Ok(msgs_monitor_option) => { + if let UpdateFulfillCommitFetch::NewClaim { msgs, htlc_value_msat, monitor_update } = msgs_monitor_option { + match self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update) { + ChannelMonitorUpdateStatus::Completed => {}, + e => { + log_given_level!(self.logger, if e == ChannelMonitorUpdateStatus::PermanentFailure { Level::Error } else { Level::Debug }, + "Failed to update channel monitor with preimage {:?}: {:?}", + payment_preimage, e); + let err = handle_monitor_update_res!(self, e, chan, RAACommitmentOrder::CommitmentFirst, false, msgs.is_some()).unwrap_err(); + mem::drop(channel_state_lock); + mem::drop(peer_state_opt); + mem::drop(per_peer_state_lock); + self.handle_monitor_update_completion_actions(completion_action(Some(htlc_value_msat))); + return Err((counterparty_node_id, err)); + } + } + if let Some((msg, commitment_signed)) = msgs { + log_debug!(self.logger, "Claiming funds for HTLC with preimage {} resulted in a commitment_signed for channel {}", + log_bytes!(payment_preimage.0), log_bytes!(chan.get().channel_id())); + channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { + node_id: chan.get().get_counterparty_node_id(), + updates: msgs::CommitmentUpdate { + update_add_htlcs: Vec::new(), + update_fulfill_htlcs: vec![msg], + update_fail_htlcs: Vec::new(), + update_fail_malformed_htlcs: Vec::new(), + update_fee: None, + commitment_signed, + } + }); + } + mem::drop(channel_state_lock); + mem::drop(peer_state_opt); + mem::drop(per_peer_state_lock); + self.handle_monitor_update_completion_actions(completion_action(Some(htlc_value_msat))); + Ok(()) + } else { + Ok(()) + } + }, + Err((e, monitor_update)) => { match self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update) { ChannelMonitorUpdateStatus::Completed => {}, e => { - log_given_level!(self.logger, if e == ChannelMonitorUpdateStatus::PermanentFailure { Level::Error } else { Level::Debug }, - "Failed to update channel monitor with preimage {:?}: {:?}", + // TODO: This needs to be handled somehow - if we receive a monitor update + // with a preimage we *must* somehow manage to propagate it to the upstream + // channel, or we must have an ability to receive the same update and try + // again on restart. + log_given_level!(self.logger, if e == ChannelMonitorUpdateStatus::PermanentFailure { Level::Error } else { Level::Info }, + "Failed to update channel monitor with preimage {:?} immediately prior to force-close: {:?}", payment_preimage, e); - let err = handle_monitor_update_res!(self, e, chan, RAACommitmentOrder::CommitmentFirst, false, msgs.is_some()).unwrap_err(); - mem::drop(channel_state_lock); - self.handle_monitor_update_completion_actions(completion_action(Some(htlc_value_msat))); - return Err((counterparty_node_id, err)); - } + }, } - if let Some((msg, commitment_signed)) = msgs { - log_debug!(self.logger, "Claiming funds for HTLC with preimage {} resulted in a commitment_signed for channel {}", - log_bytes!(payment_preimage.0), log_bytes!(chan.get().channel_id())); - channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { - node_id: chan.get().get_counterparty_node_id(), - updates: msgs::CommitmentUpdate { - update_add_htlcs: Vec::new(), - update_fulfill_htlcs: vec![msg], - update_fail_htlcs: Vec::new(), - update_fail_malformed_htlcs: Vec::new(), - update_fee: None, - commitment_signed, - } - }); + let (drop, res) = convert_chan_err!(self, e, chan.get_mut(), &chan_id); + if drop { + chan.remove_entry(); } mem::drop(channel_state_lock); - self.handle_monitor_update_completion_actions(completion_action(Some(htlc_value_msat))); - Ok(()) - } else { - Ok(()) - } - }, - Err((e, monitor_update)) => { - match self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update) { - ChannelMonitorUpdateStatus::Completed => {}, - e => { - // TODO: This needs to be handled somehow - if we receive a monitor update - // with a preimage we *must* somehow manage to propagate it to the upstream - // channel, or we must have an ability to receive the same update and try - // again on restart. - log_given_level!(self.logger, if e == ChannelMonitorUpdateStatus::PermanentFailure { Level::Error } else { Level::Info }, - "Failed to update channel monitor with preimage {:?} immediately prior to force-close: {:?}", - payment_preimage, e); - }, - } - let (drop, res) = convert_chan_err!(self, e, chan.get_mut(), &chan_id); - if drop { - chan.remove_entry(); - } - mem::drop(channel_state_lock); - self.handle_monitor_update_completion_actions(completion_action(None)); - Err((counterparty_node_id, res)) - }, + mem::drop(peer_state_opt); + mem::drop(per_peer_state_lock); + self.handle_monitor_update_completion_actions(completion_action(None)); + Err((counterparty_node_id, res)) + }, + } + } else { + // We've held the peer_state mutex since finding the channel and setting + // found_channel to true, so the channel can't have been dropped. + unreachable!() } } else { let preimage_update = ChannelMonitorUpdate { @@ -3772,6 +3902,8 @@ where payment_preimage, update_res); } mem::drop(channel_state_lock); + mem::drop(peer_state_opt); + mem::drop(per_peer_state_lock); // Note that we do process the completion action here. This totally could be a // duplicate claim, but we have no way of knowing without interrogating the // `ChannelMonitor` we've provided the above update to. Instead, note that `Event`s are @@ -3786,7 +3918,7 @@ where self.pending_outbound_payments.finalize_claims(sources, &self.pending_events); } - fn claim_funds_internal(&self, channel_state_lock: MutexGuard::Signer>>, source: HTLCSource, payment_preimage: PaymentPreimage, forwarded_htlc_value_msat: Option, from_onchain: bool, next_channel_id: [u8; 32]) { + fn claim_funds_internal(&self, channel_state_lock: MutexGuard, source: HTLCSource, payment_preimage: PaymentPreimage, forwarded_htlc_value_msat: Option, from_onchain: bool, next_channel_id: [u8; 32]) { match source { HTLCSource::OutboundRoute { session_priv, payment_id, path, .. } => { mem::drop(channel_state_lock); @@ -3794,7 +3926,7 @@ where }, HTLCSource::PreviousHopData(hop_data) => { let prev_outpoint = hop_data.outpoint; - let res = self.claim_funds_from_hop(channel_state_lock, hop_data, payment_preimage, + let res = self.claim_funds_from_hop(channel_state_lock, self.per_peer_state.read().unwrap(), hop_data, payment_preimage, |htlc_claim_value_msat| { if let Some(forwarded_htlc_value) = forwarded_htlc_value_msat { let fee_earned_msat = if let Some(claimed_htlc_value) = htlc_claim_value_msat { @@ -3906,22 +4038,41 @@ where htlc_forwards } - fn channel_monitor_updated(&self, funding_txo: &OutPoint, highest_applied_update_id: u64) { + fn channel_monitor_updated(&self, funding_txo: &OutPoint, highest_applied_update_id: u64, counterparty_node_id: Option<&PublicKey>) { let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier); let htlc_forwards; let (mut pending_failures, finalized_claims, counterparty_node_id) = { let mut channel_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_lock; - let mut channel = match channel_state.by_id.entry(funding_txo.to_channel_id()) { - hash_map::Entry::Occupied(chan) => chan, - hash_map::Entry::Vacant(_) => return, + let counterparty_node_id = match counterparty_node_id { + Some(cp_id) => cp_id.clone(), + None => { + // TODO: Once we can rely on the counterparty_node_id from the + // monitor event, this and the id_to_peer map should be removed. + let id_to_peer = self.id_to_peer.lock().unwrap(); + match id_to_peer.get(&funding_txo.to_channel_id()) { + Some(cp_id) => cp_id.clone(), + None => return, + } + } + }; + let per_peer_state = self.per_peer_state.read().unwrap(); + let mut peer_state_lock; + let mut channel = { + if let Some(peer_state_mutex) = per_peer_state.get(&counterparty_node_id) { + peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(funding_txo.to_channel_id()){ + hash_map::Entry::Occupied(chan) => chan, + hash_map::Entry::Vacant(_) => return, + } + } else { return } }; if !channel.get().is_awaiting_monitor_update() || channel.get().get_latest_monitor_update_id() != highest_applied_update_id { return; } - let counterparty_node_id = channel.get().get_counterparty_node_id(); let updates = channel.get_mut().monitor_updating_restored(&self.logger, self.get_our_node_id(), self.genesis_hash, self.best_block.read().unwrap().height()); let channel_update = if updates.channel_ready.is_some() && channel.get().is_usable() { // We only send a channel_update in the case where we are just now sending a @@ -4000,36 +4151,43 @@ where let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(temporary_channel_id.clone()) { - hash_map::Entry::Occupied(mut channel) => { - if !channel.get().inbound_is_awaiting_accept() { - return Err(APIError::APIMisuseError { err: "The channel isn't currently awaiting to be accepted.".to_owned() }); - } - if *counterparty_node_id != channel.get().get_counterparty_node_id() { - return Err(APIError::APIMisuseError { err: "The passed counterparty_node_id doesn't match the channel's counterparty node_id".to_owned() }); - } - if accept_0conf { - channel.get_mut().set_0conf(); - } else if channel.get().get_channel_type().requires_zero_conf() { - let send_msg_err_event = events::MessageSendEvent::HandleError { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(temporary_channel_id.clone()) { + hash_map::Entry::Occupied(mut channel) => { + if !channel.get().inbound_is_awaiting_accept() { + return Err(APIError::APIMisuseError { err: "The channel isn't currently awaiting to be accepted.".to_owned() }); + } + if *counterparty_node_id != channel.get().get_counterparty_node_id() { + return Err(APIError::APIMisuseError { err: "The passed counterparty_node_id doesn't match the channel's counterparty node_id".to_owned() }); + } + if accept_0conf { + channel.get_mut().set_0conf(); + } else if channel.get().get_channel_type().requires_zero_conf() { + let send_msg_err_event = events::MessageSendEvent::HandleError { + node_id: channel.get().get_counterparty_node_id(), + action: msgs::ErrorAction::SendErrorMessage{ + msg: msgs::ErrorMessage { channel_id: temporary_channel_id.clone(), data: "No zero confirmation channels accepted".to_owned(), } + } + }; + channel_state.pending_msg_events.push(send_msg_err_event); + let _ = remove_channel!(self, channel); + return Err(APIError::APIMisuseError { err: "Please use accept_inbound_channel_from_trusted_peer_0conf to accept channels with zero confirmations.".to_owned() }); + } + + channel_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel { node_id: channel.get().get_counterparty_node_id(), - action: msgs::ErrorAction::SendErrorMessage{ - msg: msgs::ErrorMessage { channel_id: temporary_channel_id.clone(), data: "No zero confirmation channels accepted".to_owned(), } - } - }; - channel_state.pending_msg_events.push(send_msg_err_event); - let _ = remove_channel!(self, channel); - return Err(APIError::APIMisuseError { err: "Please use accept_inbound_channel_from_trusted_peer_0conf to accept channels with zero confirmations.".to_owned() }); + msg: channel.get_mut().accept_inbound_channel(user_channel_id), + }); + } + hash_map::Entry::Vacant(_) => { + return Err(APIError::ChannelUnavailable { err: "Can't accept a channel that doesn't exist".to_owned() }); } - - channel_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel { - node_id: channel.get().get_counterparty_node_id(), - msg: channel.get_mut().accept_inbound_channel(user_channel_id), - }); - } - hash_map::Entry::Vacant(_) => { - return Err(APIError::ChannelUnavailable { err: "Can't accept a channel that doesn't exist".to_owned() }); } + } else { + return Err(APIError::APIMisuseError { err: format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id) }); } Ok(()) } @@ -4060,52 +4218,64 @@ where }; let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(channel.channel_id()) { - hash_map::Entry::Occupied(_) => { - self.outbound_scid_aliases.lock().unwrap().remove(&outbound_scid_alias); - return Err(MsgHandleErrInternal::send_err_msg_no_close("temporary_channel_id collision!".to_owned(), msg.temporary_channel_id.clone())) - }, - hash_map::Entry::Vacant(entry) => { - if !self.default_configuration.manually_accept_inbound_channels { - if channel.get_channel_type().requires_zero_conf() { - return Err(MsgHandleErrInternal::send_err_msg_no_close("No zero confirmation channels accepted".to_owned(), msg.temporary_channel_id.clone())); - } - channel_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel { - node_id: counterparty_node_id.clone(), - msg: channel.accept_inbound_channel(user_channel_id), - }); - } else { - let mut pending_events = self.pending_events.lock().unwrap(); - pending_events.push( - events::Event::OpenChannelRequest { - temporary_channel_id: msg.temporary_channel_id.clone(), - counterparty_node_id: counterparty_node_id.clone(), - funding_satoshis: msg.funding_satoshis, - push_msat: msg.push_msat, - channel_type: channel.get_channel_type().clone(), + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(channel.channel_id()) { + hash_map::Entry::Occupied(_) => { + self.outbound_scid_aliases.lock().unwrap().remove(&outbound_scid_alias); + return Err(MsgHandleErrInternal::send_err_msg_no_close("temporary_channel_id collision for the same peer!".to_owned(), msg.temporary_channel_id.clone())) + }, + hash_map::Entry::Vacant(entry) => { + if !self.default_configuration.manually_accept_inbound_channels { + if channel.get_channel_type().requires_zero_conf() { + return Err(MsgHandleErrInternal::send_err_msg_no_close("No zero confirmation channels accepted".to_owned(), msg.temporary_channel_id.clone())); } - ); - } + channel_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel { + node_id: counterparty_node_id.clone(), + msg: channel.accept_inbound_channel(user_channel_id), + }); + } else { + let mut pending_events = self.pending_events.lock().unwrap(); + pending_events.push( + events::Event::OpenChannelRequest { + temporary_channel_id: msg.temporary_channel_id.clone(), + counterparty_node_id: counterparty_node_id.clone(), + funding_satoshis: msg.funding_satoshis, + push_msat: msg.push_msat, + channel_type: channel.get_channel_type().clone(), + } + ); + } - entry.insert(channel); + entry.insert(channel); + } } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.temporary_channel_id.clone())) } Ok(()) } fn internal_accept_channel(&self, counterparty_node_id: &PublicKey, their_features: InitFeatures, msg: &msgs::AcceptChannel) -> Result<(), MsgHandleErrInternal> { let (value, output_script, user_id) = { - let mut channel_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_lock; - match channel_state.by_id.entry(msg.temporary_channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.temporary_channel_id)); - } - try_chan_entry!(self, chan.get_mut().accept_channel(&msg, &self.default_configuration.channel_handshake_limits, &their_features), chan); - (chan.get().get_value_satoshis(), chan.get().get_funding_redeemscript().to_v0_p2wsh(), chan.get().get_user_id()) - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.temporary_channel_id)) + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.temporary_channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.temporary_channel_id)); + } + try_chan_entry!(self, chan.get_mut().accept_channel(&msg, &self.default_configuration.channel_handshake_limits, &their_features), chan); + (chan.get().get_value_satoshis(), chan.get().get_funding_redeemscript().to_v0_p2wsh(), chan.get().get_user_id()) + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.temporary_channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.temporary_channel_id)) } }; let mut pending_events = self.pending_events.lock().unwrap(); @@ -4120,21 +4290,28 @@ where } fn internal_funding_created(&self, counterparty_node_id: &PublicKey, msg: &msgs::FundingCreated) -> Result<(), MsgHandleErrInternal> { + let mut channel_state_lock = self.channel_state.lock().unwrap(); + let channel_state = &mut *channel_state_lock; + let per_peer_state = self.per_peer_state.read().unwrap(); let ((funding_msg, monitor, mut channel_ready), mut chan) = { let best_block = *self.best_block.read().unwrap(); - let mut channel_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_lock; - match channel_state.by_id.entry(msg.temporary_channel_id.clone()) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.temporary_channel_id)); - } - (try_chan_entry!(self, chan.get_mut().funding_created(msg, best_block, &self.keys_manager, &self.logger), chan), chan.remove()) - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.temporary_channel_id)) + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.temporary_channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.temporary_channel_id)); + } + (try_chan_entry!(self, chan.get_mut().funding_created(msg, best_block, &self.keys_manager, &self.logger), chan), chan.remove()) + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.temporary_channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.temporary_channel_id)) } }; - // Because we have exclusive ownership of the channel here we can release the channel_state + // Because we have exclusive ownership of the channel here we can release the peer_state // lock before watch_channel match self.chain_monitor.watch_channel(monitor.get_funding_txo().0, monitor) { ChannelMonitorUpdateStatus::Completed => {}, @@ -4159,9 +4336,13 @@ where channel_ready = None; // Don't send the channel_ready now }, } - let mut channel_state_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(funding_msg.channel_id) { + // It's safe to unwrap as we've held the `per_peer_state` read lock since checking that the + // peer exists, despite the inner PeerState potentially having no channels after removing + // the channel above. + let peer_state_mutex = per_peer_state.get(counterparty_node_id).unwrap(); + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(funding_msg.channel_id) { hash_map::Entry::Occupied(_) => { return Err(MsgHandleErrInternal::send_err_msg_no_close("Already had channel with the new channel_id".to_owned(), funding_msg.channel_id)) }, @@ -4195,36 +4376,43 @@ where let best_block = *self.best_block.read().unwrap(); let mut channel_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_lock; - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - let (monitor, funding_tx, channel_ready) = match chan.get_mut().funding_signed(&msg, best_block, &self.keys_manager, &self.logger) { - Ok(update) => update, - Err(e) => try_chan_entry!(self, Err(e), chan), - }; - match self.chain_monitor.watch_channel(chan.get().get_funding_txo().unwrap(), monitor) { - ChannelMonitorUpdateStatus::Completed => {}, - e => { - let mut res = handle_monitor_update_res!(self, e, chan, RAACommitmentOrder::RevokeAndACKFirst, channel_ready.is_some(), OPTIONALLY_RESEND_FUNDING_LOCKED); - if let Err(MsgHandleErrInternal { ref mut shutdown_finish, .. }) = res { - // We weren't able to watch the channel to begin with, so no updates should be made on - // it. Previously, full_stack_target found an (unreachable) panic when the - // monitor update contained within `shutdown_finish` was applied. - if let Some((ref mut shutdown_finish, _)) = shutdown_finish { - shutdown_finish.0.take(); + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + let (monitor, funding_tx, channel_ready) = match chan.get_mut().funding_signed(&msg, best_block, &self.keys_manager, &self.logger) { + Ok(update) => update, + Err(e) => try_chan_entry!(self, Err(e), chan), + }; + match self.chain_monitor.watch_channel(chan.get().get_funding_txo().unwrap(), monitor) { + ChannelMonitorUpdateStatus::Completed => {}, + e => { + let mut res = handle_monitor_update_res!(self, e, chan, RAACommitmentOrder::RevokeAndACKFirst, channel_ready.is_some(), OPTIONALLY_RESEND_FUNDING_LOCKED); + if let Err(MsgHandleErrInternal { ref mut shutdown_finish, .. }) = res { + // We weren't able to watch the channel to begin with, so no updates should be made on + // it. Previously, full_stack_target found an (unreachable) panic when the + // monitor update contained within `shutdown_finish` was applied. + if let Some((ref mut shutdown_finish, _)) = shutdown_finish { + shutdown_finish.0.take(); + } } - } - return res - }, - } - if let Some(msg) = channel_ready { - send_channel_ready!(self, channel_state.pending_msg_events, chan.get(), msg); - } - funding_tx - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + return res + }, + } + if let Some(msg) = channel_ready { + send_channel_ready!(self, channel_state.pending_msg_events, chan.get(), msg); + } + funding_tx + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)) } }; log_info!(self.logger, "Broadcasting funding transaction with txid {}", funding_tx.txid()); @@ -4235,39 +4423,46 @@ where fn internal_channel_ready(&self, counterparty_node_id: &PublicKey, msg: &msgs::ChannelReady) -> Result<(), MsgHandleErrInternal> { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - let announcement_sigs_opt = try_chan_entry!(self, chan.get_mut().channel_ready(&msg, self.get_our_node_id(), - self.genesis_hash.clone(), &self.best_block.read().unwrap(), &self.logger), chan); - if let Some(announcement_sigs) = announcement_sigs_opt { - log_trace!(self.logger, "Sending announcement_signatures for channel {}", log_bytes!(chan.get().channel_id())); - channel_state.pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures { - node_id: counterparty_node_id.clone(), - msg: announcement_sigs, - }); - } else if chan.get().is_usable() { - // If we're sending an announcement_signatures, we'll send the (public) - // channel_update after sending a channel_announcement when we receive our - // counterparty's announcement_signatures. Thus, we only bother to send a - // channel_update here if the channel is not public, i.e. we're not sending an - // announcement_signatures. - log_trace!(self.logger, "Sending private initial channel_update for our counterparty on channel {}", log_bytes!(chan.get().channel_id())); - if let Ok(msg) = self.get_channel_update_for_unicast(chan.get()) { - channel_state.pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + let announcement_sigs_opt = try_chan_entry!(self, chan.get_mut().channel_ready(&msg, self.get_our_node_id(), + self.genesis_hash.clone(), &self.best_block.read().unwrap(), &self.logger), chan); + if let Some(announcement_sigs) = announcement_sigs_opt { + log_trace!(self.logger, "Sending announcement_signatures for channel {}", log_bytes!(chan.get().channel_id())); + channel_state.pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures { node_id: counterparty_node_id.clone(), - msg, + msg: announcement_sigs, }); + } else if chan.get().is_usable() { + // If we're sending an announcement_signatures, we'll send the (public) + // channel_update after sending a channel_announcement when we receive our + // counterparty's announcement_signatures. Thus, we only bother to send a + // channel_update here if the channel is not public, i.e. we're not sending an + // announcement_signatures. + log_trace!(self.logger, "Sending private initial channel_update for our counterparty on channel {}", log_bytes!(chan.get().channel_id())); + if let Ok(msg) = self.get_channel_update_for_unicast(chan.get()) { + channel_state.pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate { + node_id: counterparty_node_id.clone(), + msg, + }); + } } - } - emit_channel_ready_event!(self, chan.get_mut()); + emit_channel_ready_event!(self, chan.get_mut()); - Ok(()) - }, - hash_map::Entry::Vacant(_) => Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + Ok(()) + }, + hash_map::Entry::Vacant(_) => Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)) } } @@ -4276,43 +4471,49 @@ where let result: Result<(), _> = loop { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id.clone()) { + hash_map::Entry::Occupied(mut chan_entry) => { + if chan_entry.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } - match channel_state.by_id.entry(msg.channel_id.clone()) { - hash_map::Entry::Occupied(mut chan_entry) => { - if chan_entry.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - - if !chan_entry.get().received_shutdown() { - log_info!(self.logger, "Received a shutdown message from our counterparty for channel {}{}.", - log_bytes!(msg.channel_id), - if chan_entry.get().sent_shutdown() { " after we initiated shutdown" } else { "" }); - } + if !chan_entry.get().received_shutdown() { + log_info!(self.logger, "Received a shutdown message from our counterparty for channel {}{}.", + log_bytes!(msg.channel_id), + if chan_entry.get().sent_shutdown() { " after we initiated shutdown" } else { "" }); + } - let (shutdown, monitor_update, htlcs) = try_chan_entry!(self, chan_entry.get_mut().shutdown(&self.keys_manager, &their_features, &msg), chan_entry); - dropped_htlcs = htlcs; - - // Update the monitor with the shutdown script if necessary. - if let Some(monitor_update) = monitor_update { - let update_res = self.chain_monitor.update_channel(chan_entry.get().get_funding_txo().unwrap(), monitor_update); - let (result, is_permanent) = - handle_monitor_update_res!(self, update_res, chan_entry.get_mut(), RAACommitmentOrder::CommitmentFirst, chan_entry.key(), NO_UPDATE); - if is_permanent { - remove_channel!(self, chan_entry); - break result; + let (shutdown, monitor_update, htlcs) = try_chan_entry!(self, chan_entry.get_mut().shutdown(&self.keys_manager, &their_features, &msg), chan_entry); + dropped_htlcs = htlcs; + + // Update the monitor with the shutdown script if necessary. + if let Some(monitor_update) = monitor_update { + let update_res = self.chain_monitor.update_channel(chan_entry.get().get_funding_txo().unwrap(), monitor_update); + let (result, is_permanent) = + handle_monitor_update_res!(self, update_res, chan_entry.get_mut(), RAACommitmentOrder::CommitmentFirst, chan_entry.key(), NO_UPDATE); + if is_permanent { + remove_channel!(self, chan_entry); + break result; + } } - } - if let Some(msg) = shutdown { - channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown { - node_id: *counterparty_node_id, - msg, - }); - } + if let Some(msg) = shutdown { + channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown { + node_id: *counterparty_node_id, + msg, + }); + } - break Ok(()); - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + break Ok(()); + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)) } }; for htlc_source in dropped_htlcs.drain(..) { @@ -4329,28 +4530,35 @@ where let (tx, chan_option) = { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(msg.channel_id.clone()) { - hash_map::Entry::Occupied(mut chan_entry) => { - if chan_entry.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - let (closing_signed, tx) = try_chan_entry!(self, chan_entry.get_mut().closing_signed(&self.fee_estimator, &msg), chan_entry); - if let Some(msg) = closing_signed { - channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned { - node_id: counterparty_node_id.clone(), - msg, - }); - } - if tx.is_some() { - // We're done with this channel, we've got a signed closing transaction and - // will send the closing_signed back to the remote peer upon return. This - // also implies there are no pending HTLCs left on the channel, so we can - // fully delete it from tracking (the channel monitor is still around to - // watch for old state broadcasts)! - (tx, Some(remove_channel!(self, chan_entry))) - } else { (tx, None) } - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id.clone()) { + hash_map::Entry::Occupied(mut chan_entry) => { + if chan_entry.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + let (closing_signed, tx) = try_chan_entry!(self, chan_entry.get_mut().closing_signed(&self.fee_estimator, &msg), chan_entry); + if let Some(msg) = closing_signed { + channel_state.pending_msg_events.push(events::MessageSendEvent::SendClosingSigned { + node_id: counterparty_node_id.clone(), + msg, + }); + } + if tx.is_some() { + // We're done with this channel, we've got a signed closing transaction and + // will send the closing_signed back to the remote peer upon return. This + // also implies there are no pending HTLCs left on the channel, so we can + // fully delete it from tracking (the channel monitor is still around to + // watch for old state broadcasts)! + (tx, Some(remove_channel!(self, chan_entry))) + } else { (tx, None) } + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)) } }; if let Some(broadcast_tx) = tx { @@ -4380,49 +4588,59 @@ where //but we should prevent it anyway. let pending_forward_info = self.decode_update_add_htlc_onion(msg); - let mut channel_state_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_state_lock; - - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - - let create_pending_htlc_status = |chan: &Channel<::Signer>, pending_forward_info: PendingHTLCStatus, error_code: u16| { - // If the update_add is completely bogus, the call will Err and we will close, - // but if we've sent a shutdown and they haven't acknowledged it yet, we just - // want to reject the new HTLC and fail it backwards instead of forwarding. - match pending_forward_info { - PendingHTLCStatus::Forward(PendingHTLCInfo { ref incoming_shared_secret, .. }) => { - let reason = if (error_code & 0x1000) != 0 { - let (real_code, error_data) = self.get_htlc_inbound_temp_fail_err_and_data(error_code, chan); - HTLCFailReason::reason(real_code, error_data) - } else { - HTLCFailReason::from_failure_code(error_code) - }.get_encrypted_failure_packet(incoming_shared_secret, &None); - let msg = msgs::UpdateFailHTLC { - channel_id: msg.channel_id, - htlc_id: msg.htlc_id, - reason - }; - PendingHTLCStatus::Fail(HTLCFailureMsg::Relay(msg)) - }, - _ => pending_forward_info + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); } - }; - try_chan_entry!(self, chan.get_mut().update_add_htlc(&msg, pending_forward_info, create_pending_htlc_status, &self.logger), chan); - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + + let create_pending_htlc_status = |chan: &Channel<::Signer>, pending_forward_info: PendingHTLCStatus, error_code: u16| { + // If the update_add is completely bogus, the call will Err and we will close, + // but if we've sent a shutdown and they haven't acknowledged it yet, we just + // want to reject the new HTLC and fail it backwards instead of forwarding. + match pending_forward_info { + PendingHTLCStatus::Forward(PendingHTLCInfo { ref incoming_shared_secret, .. }) => { + let reason = if (error_code & 0x1000) != 0 { + let (real_code, error_data) = self.get_htlc_inbound_temp_fail_err_and_data(error_code, chan); + HTLCFailReason::reason(real_code, error_data) + } else { + HTLCFailReason::from_failure_code(error_code) + }.get_encrypted_failure_packet(incoming_shared_secret, &None); + let msg = msgs::UpdateFailHTLC { + channel_id: msg.channel_id, + htlc_id: msg.htlc_id, + reason + }; + PendingHTLCStatus::Fail(HTLCFailureMsg::Relay(msg)) + }, + _ => pending_forward_info + } + }; + try_chan_entry!(self, chan.get_mut().update_add_htlc(&msg, pending_forward_info, create_pending_htlc_status, &self.logger), chan); + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)) } Ok(()) } fn internal_update_fulfill_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) -> Result<(), MsgHandleErrInternal> { - let mut channel_lock = self.channel_state.lock().unwrap(); + let channel_lock = self.channel_state.lock().unwrap(); let (htlc_source, forwarded_htlc_value) = { - let channel_state = &mut *channel_lock; - match channel_state.by_id.entry(msg.channel_id) { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let None = per_peer_state.get(counterparty_node_id) { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)); + } + let peer_state_mutex = per_peer_state.get(counterparty_node_id).unwrap(); + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { hash_map::Entry::Occupied(mut chan) => { if chan.get().get_counterparty_node_id() != *counterparty_node_id { return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); @@ -4437,83 +4655,100 @@ where } fn internal_update_fail_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFailHTLC) -> Result<(), MsgHandleErrInternal> { - let mut channel_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_lock; - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - try_chan_entry!(self, chan.get_mut().update_fail_htlc(&msg, HTLCFailReason::from_msg(msg)), chan); - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + try_chan_entry!(self, chan.get_mut().update_fail_htlc(&msg, HTLCFailReason::from_msg(msg)), chan); + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)); } Ok(()) } fn internal_update_fail_malformed_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFailMalformedHTLC) -> Result<(), MsgHandleErrInternal> { - let mut channel_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_lock; - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - if (msg.failure_code & 0x8000) == 0 { - let chan_err: ChannelError = ChannelError::Close("Got update_fail_malformed_htlc with BADONION not set".to_owned()); - try_chan_entry!(self, Err(chan_err), chan); - } - try_chan_entry!(self, chan.get_mut().update_fail_malformed_htlc(&msg, HTLCFailReason::reason(msg.failure_code, msg.sha256_of_onion.to_vec())), chan); - Ok(()) - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + if (msg.failure_code & 0x8000) == 0 { + let chan_err: ChannelError = ChannelError::Close("Got update_fail_malformed_htlc with BADONION not set".to_owned()); + try_chan_entry!(self, Err(chan_err), chan); + } + try_chan_entry!(self, chan.get_mut().update_fail_malformed_htlc(&msg, HTLCFailReason::reason(msg.failure_code, msg.sha256_of_onion.to_vec())), chan); + Ok(()) + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)) } } fn internal_commitment_signed(&self, counterparty_node_id: &PublicKey, msg: &msgs::CommitmentSigned) -> Result<(), MsgHandleErrInternal> { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - let (revoke_and_ack, commitment_signed, monitor_update) = - match chan.get_mut().commitment_signed(&msg, &self.logger) { - Err((None, e)) => try_chan_entry!(self, Err(e), chan), - Err((Some(update), e)) => { - assert!(chan.get().is_awaiting_monitor_update()); - let _ = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), update); - try_chan_entry!(self, Err(e), chan); - unreachable!(); - }, - Ok(res) => res - }; - let update_res = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update); - if let Err(e) = handle_monitor_update_res!(self, update_res, chan, RAACommitmentOrder::RevokeAndACKFirst, true, commitment_signed.is_some()) { - return Err(e); - } + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + let (revoke_and_ack, commitment_signed, monitor_update) = + match chan.get_mut().commitment_signed(&msg, &self.logger) { + Err((None, e)) => try_chan_entry!(self, Err(e), chan), + Err((Some(update), e)) => { + assert!(chan.get().is_awaiting_monitor_update()); + let _ = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), update); + try_chan_entry!(self, Err(e), chan); + unreachable!(); + }, + Ok(res) => res + }; + let update_res = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), monitor_update); + if let Err(e) = handle_monitor_update_res!(self, update_res, chan, RAACommitmentOrder::RevokeAndACKFirst, true, commitment_signed.is_some()) { + return Err(e); + } - channel_state.pending_msg_events.push(events::MessageSendEvent::SendRevokeAndACK { - node_id: counterparty_node_id.clone(), - msg: revoke_and_ack, - }); - if let Some(msg) = commitment_signed { - channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { + channel_state.pending_msg_events.push(events::MessageSendEvent::SendRevokeAndACK { node_id: counterparty_node_id.clone(), - updates: msgs::CommitmentUpdate { - update_add_htlcs: Vec::new(), - update_fulfill_htlcs: Vec::new(), - update_fail_htlcs: Vec::new(), - update_fail_malformed_htlcs: Vec::new(), - update_fee: None, - commitment_signed: msg, - }, + msg: revoke_and_ack, }); - } - Ok(()) - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + if let Some(msg) = commitment_signed { + channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { + node_id: counterparty_node_id.clone(), + updates: msgs::CommitmentUpdate { + update_add_htlcs: Vec::new(), + update_fulfill_htlcs: Vec::new(), + update_fail_htlcs: Vec::new(), + update_fail_malformed_htlcs: Vec::new(), + update_fee: None, + commitment_signed: msg, + }, + }); + } + Ok(()) + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)) } } @@ -4614,47 +4849,54 @@ where let res = loop { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - break Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - let was_paused_for_mon_update = chan.get().is_awaiting_monitor_update(); - let raa_updates = break_chan_entry!(self, - chan.get_mut().revoke_and_ack(&msg, &self.logger), chan); - htlcs_to_fail = raa_updates.holding_cell_failed_htlcs; - let update_res = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), raa_updates.monitor_update); - if was_paused_for_mon_update { - assert!(update_res != ChannelMonitorUpdateStatus::Completed); - assert!(raa_updates.commitment_update.is_none()); - assert!(raa_updates.accepted_htlcs.is_empty()); - assert!(raa_updates.failed_htlcs.is_empty()); - assert!(raa_updates.finalized_claimed_htlcs.is_empty()); - break Err(MsgHandleErrInternal::ignore_no_close("Existing pending monitor update prevented responses to RAA".to_owned())); - } - if update_res != ChannelMonitorUpdateStatus::Completed { - if let Err(e) = handle_monitor_update_res!(self, update_res, chan, - RAACommitmentOrder::CommitmentFirst, false, - raa_updates.commitment_update.is_some(), false, - raa_updates.accepted_htlcs, raa_updates.failed_htlcs, - raa_updates.finalized_claimed_htlcs) { - break Err(e); - } else { unreachable!(); } - } - if let Some(updates) = raa_updates.commitment_update { - channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { - node_id: counterparty_node_id.clone(), - updates, - }); - } - break Ok((raa_updates.accepted_htlcs, raa_updates.failed_htlcs, - raa_updates.finalized_claimed_htlcs, - chan.get().get_short_channel_id() - .unwrap_or(chan.get().outbound_scid_alias()), - chan.get().get_funding_txo().unwrap(), - chan.get().get_user_id())) - }, - hash_map::Entry::Vacant(_) => break Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + break Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + let was_paused_for_mon_update = chan.get().is_awaiting_monitor_update(); + let raa_updates = break_chan_entry!(self, + chan.get_mut().revoke_and_ack(&msg, &self.logger), chan); + htlcs_to_fail = raa_updates.holding_cell_failed_htlcs; + let update_res = self.chain_monitor.update_channel(chan.get().get_funding_txo().unwrap(), raa_updates.monitor_update); + if was_paused_for_mon_update { + assert!(update_res != ChannelMonitorUpdateStatus::Completed); + assert!(raa_updates.commitment_update.is_none()); + assert!(raa_updates.accepted_htlcs.is_empty()); + assert!(raa_updates.failed_htlcs.is_empty()); + assert!(raa_updates.finalized_claimed_htlcs.is_empty()); + break Err(MsgHandleErrInternal::ignore_no_close("Existing pending monitor update prevented responses to RAA".to_owned())); + } + if update_res != ChannelMonitorUpdateStatus::Completed { + if let Err(e) = handle_monitor_update_res!(self, update_res, chan, + RAACommitmentOrder::CommitmentFirst, false, + raa_updates.commitment_update.is_some(), false, + raa_updates.accepted_htlcs, raa_updates.failed_htlcs, + raa_updates.finalized_claimed_htlcs) { + break Err(e); + } else { unreachable!(); } + } + if let Some(updates) = raa_updates.commitment_update { + channel_state.pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { + node_id: counterparty_node_id.clone(), + updates, + }); + } + break Ok((raa_updates.accepted_htlcs, raa_updates.failed_htlcs, + raa_updates.finalized_claimed_htlcs, + chan.get().get_short_channel_id() + .unwrap_or(chan.get().outbound_scid_alias()), + chan.get().get_funding_txo().unwrap(), + chan.get().get_user_id())) + }, + hash_map::Entry::Vacant(_) => break Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + break Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)) } }; self.fail_holding_cell_htlcs(htlcs_to_fail, msg.channel_id, counterparty_node_id); @@ -4675,16 +4917,21 @@ where } fn internal_update_fee(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFee) -> Result<(), MsgHandleErrInternal> { - let mut channel_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_lock; - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - try_chan_entry!(self, chan.get_mut().update_fee(&self.fee_estimator, &msg, &self.logger), chan); - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + try_chan_entry!(self, chan.get_mut().update_fee(&self.fee_estimator, &msg, &self.logger), chan); + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)); } Ok(()) } @@ -4692,61 +4939,72 @@ where fn internal_announcement_signatures(&self, counterparty_node_id: &PublicKey, msg: &msgs::AnnouncementSignatures) -> Result<(), MsgHandleErrInternal> { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + if !chan.get().is_usable() { + return Err(MsgHandleErrInternal::from_no_close(LightningError{err: "Got an announcement_signatures before we were ready for it".to_owned(), action: msgs::ErrorAction::IgnoreError})); + } - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - if !chan.get().is_usable() { - return Err(MsgHandleErrInternal::from_no_close(LightningError{err: "Got an announcement_signatures before we were ready for it".to_owned(), action: msgs::ErrorAction::IgnoreError})); - } - - channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelAnnouncement { - msg: try_chan_entry!(self, chan.get_mut().announcement_signatures( - self.get_our_node_id(), self.genesis_hash.clone(), self.best_block.read().unwrap().height(), msg), chan), - // Note that announcement_signatures fails if the channel cannot be announced, - // so get_channel_update_for_broadcast will never fail by the time we get here. - update_msg: self.get_channel_update_for_broadcast(chan.get()).unwrap(), - }); - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + channel_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelAnnouncement { + msg: try_chan_entry!(self, chan.get_mut().announcement_signatures( + self.get_our_node_id(), self.genesis_hash.clone(), self.best_block.read().unwrap().height(), msg), chan), + // Note that announcement_signatures fails if the channel cannot be announced, + // so get_channel_update_for_broadcast will never fail by the time we get here. + update_msg: self.get_channel_update_for_broadcast(chan.get()).unwrap(), + }); + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)); } Ok(()) } /// Returns ShouldPersist if anything changed, otherwise either SkipPersist or an Err. fn internal_channel_update(&self, counterparty_node_id: &PublicKey, msg: &msgs::ChannelUpdate) -> Result { - let chan_id = match self.short_to_chan_info.read().unwrap().get(&msg.contents.short_channel_id) { - Some((_cp_id, chan_id)) => chan_id.clone(), + let (chan_counterparty_node_id, chan_id) = match self.short_to_chan_info.read().unwrap().get(&msg.contents.short_channel_id) { + Some((cp_id, chan_id)) => (cp_id.clone(), chan_id.clone()), None => { // It's not a local channel return Ok(NotifyOption::SkipPersist) } }; - let mut channel_state_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_state_lock; - match channel_state.by_id.entry(chan_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - if chan.get().should_announce() { - // If the announcement is about a channel of ours which is public, some - // other peer may simply be forwarding all its gossip to us. Don't provide - // a scary-looking error message and return Ok instead. + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(&chan_counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(chan_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + if chan.get().should_announce() { + // If the announcement is about a channel of ours which is public, some + // other peer may simply be forwarding all its gossip to us. Don't provide + // a scary-looking error message and return Ok instead. + return Ok(NotifyOption::SkipPersist); + } + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a channel_update for a channel from the wrong node - it shouldn't know about our private channels!".to_owned(), chan_id)); + } + let were_node_one = self.get_our_node_id().serialize()[..] < chan.get().get_counterparty_node_id().serialize()[..]; + let msg_from_node_one = msg.contents.flags & 1 == 0; + if were_node_one == msg_from_node_one { return Ok(NotifyOption::SkipPersist); + } else { + log_debug!(self.logger, "Received channel_update for channel {}.", log_bytes!(chan_id)); + try_chan_entry!(self, chan.get_mut().channel_update(&msg), chan); } - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a channel_update for a channel from the wrong node - it shouldn't know about our private channels!".to_owned(), chan_id)); - } - let were_node_one = self.get_our_node_id().serialize()[..] < chan.get().get_counterparty_node_id().serialize()[..]; - let msg_from_node_one = msg.contents.flags & 1 == 0; - if were_node_one == msg_from_node_one { - return Ok(NotifyOption::SkipPersist); - } else { - log_debug!(self.logger, "Received channel_update for channel {}.", log_bytes!(chan_id)); - try_chan_entry!(self, chan.get_mut().channel_update(&msg), chan); - } - }, - hash_map::Entry::Vacant(_) => return Ok(NotifyOption::SkipPersist) + }, + hash_map::Entry::Vacant(_) => return Ok(NotifyOption::SkipPersist) + } + } else { + return Ok(NotifyOption::SkipPersist) } Ok(NotifyOption::DoPersist) } @@ -4756,46 +5014,53 @@ where let need_lnd_workaround = { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; + let per_peer_state = self.per_peer_state.read().unwrap(); - match channel_state.by_id.entry(msg.channel_id) { - hash_map::Entry::Occupied(mut chan) => { - if chan.get().get_counterparty_node_id() != *counterparty_node_id { - return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); - } - // Currently, we expect all holding cell update_adds to be dropped on peer - // disconnect, so Channel's reestablish will never hand us any holding cell - // freed HTLCs to fail backwards. If in the future we no longer drop pending - // add-HTLCs on disconnect, we may be handed HTLCs to fail backwards here. - let responses = try_chan_entry!(self, chan.get_mut().channel_reestablish( - msg, &self.logger, self.our_network_pubkey.clone(), self.genesis_hash, - &*self.best_block.read().unwrap()), chan); - let mut channel_update = None; - if let Some(msg) = responses.shutdown_msg { - channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown { - node_id: counterparty_node_id.clone(), - msg, - }); - } else if chan.get().is_usable() { - // If the channel is in a usable state (ie the channel is not being shut - // down), send a unicast channel_update to our counterparty to make sure - // they have the latest channel parameters. - if let Ok(msg) = self.get_channel_update_for_unicast(chan.get()) { - channel_update = Some(events::MessageSendEvent::SendChannelUpdate { - node_id: chan.get().get_counterparty_node_id(), + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + match peer_state.channel_by_id.entry(msg.channel_id) { + hash_map::Entry::Occupied(mut chan) => { + if chan.get().get_counterparty_node_id() != *counterparty_node_id { + return Err(MsgHandleErrInternal::send_err_msg_no_close("Got a message for a channel from the wrong node!".to_owned(), msg.channel_id)); + } + // Currently, we expect all holding cell update_adds to be dropped on peer + // disconnect, so Channel's reestablish will never hand us any holding cell + // freed HTLCs to fail backwards. If in the future we no longer drop pending + // add-HTLCs on disconnect, we may be handed HTLCs to fail backwards here. + let responses = try_chan_entry!(self, chan.get_mut().channel_reestablish( + msg, &self.logger, self.our_network_pubkey.clone(), self.genesis_hash, + &*self.best_block.read().unwrap()), chan); + let mut channel_update = None; + if let Some(msg) = responses.shutdown_msg { + channel_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown { + node_id: counterparty_node_id.clone(), msg, }); + } else if chan.get().is_usable() { + // If the channel is in a usable state (ie the channel is not being shut + // down), send a unicast channel_update to our counterparty to make sure + // they have the latest channel parameters. + if let Ok(msg) = self.get_channel_update_for_unicast(chan.get()) { + channel_update = Some(events::MessageSendEvent::SendChannelUpdate { + node_id: chan.get().get_counterparty_node_id(), + msg, + }); + } } - } - let need_lnd_workaround = chan.get_mut().workaround_lnd_bug_4006.take(); - htlc_forwards = self.handle_channel_resumption( - &mut channel_state.pending_msg_events, chan.get_mut(), responses.raa, responses.commitment_update, responses.order, - Vec::new(), None, responses.channel_ready, responses.announcement_sigs); - if let Some(upd) = channel_update { - channel_state.pending_msg_events.push(upd); - } - need_lnd_workaround - }, - hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + let need_lnd_workaround = chan.get_mut().workaround_lnd_bug_4006.take(); + htlc_forwards = self.handle_channel_resumption( + &mut channel_state.pending_msg_events, chan.get_mut(), responses.raa, responses.commitment_update, responses.order, + Vec::new(), None, responses.channel_ready, responses.announcement_sigs); + if let Some(upd) = channel_update { + channel_state.pending_msg_events.push(upd); + } + need_lnd_workaround + }, + hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id)) + } + } else { + return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer with a node_id matching the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id)); } }; @@ -4832,32 +5097,47 @@ where MonitorEvent::UpdateFailed(funding_outpoint) => { let mut channel_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_lock; - let by_id = &mut channel_state.by_id; - let pending_msg_events = &mut channel_state.pending_msg_events; - if let hash_map::Entry::Occupied(chan_entry) = by_id.entry(funding_outpoint.to_channel_id()) { - let mut chan = remove_channel!(self, chan_entry); - failed_channels.push(chan.force_shutdown(false)); - if let Ok(update) = self.get_channel_update_for_broadcast(&chan) { - pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { - msg: update - }); + let counterparty_node_id_opt = match counterparty_node_id { + Some(cp_id) => Some(cp_id), + None => { + // TODO: Once we can rely on the counterparty_node_id from the + // monitor event, this and the id_to_peer map should be removed. + let id_to_peer = self.id_to_peer.lock().unwrap(); + id_to_peer.get(&funding_outpoint.to_channel_id()).cloned() + } + }; + if let Some(counterparty_node_id) = counterparty_node_id_opt { + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(&counterparty_node_id) { + let pending_msg_events = &mut channel_state.pending_msg_events; + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + if let hash_map::Entry::Occupied(chan_entry) = peer_state.channel_by_id.entry(funding_outpoint.to_channel_id()) { + let mut chan = remove_channel!(self, chan_entry); + failed_channels.push(chan.force_shutdown(false)); + if let Ok(update) = self.get_channel_update_for_broadcast(&chan) { + pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { + msg: update + }); + } + let reason = if let MonitorEvent::UpdateFailed(_) = monitor_event { + ClosureReason::ProcessingError { err: "Failed to persist ChannelMonitor update during chain sync".to_string() } + } else { + ClosureReason::CommitmentTxConfirmed + }; + self.issue_channel_close_events(&chan, reason); + pending_msg_events.push(events::MessageSendEvent::HandleError { + node_id: chan.get_counterparty_node_id(), + action: msgs::ErrorAction::SendErrorMessage { + msg: msgs::ErrorMessage { channel_id: chan.channel_id(), data: "Channel force-closed".to_owned() } + }, + }); + } } - let reason = if let MonitorEvent::UpdateFailed(_) = monitor_event { - ClosureReason::ProcessingError { err: "Failed to persist ChannelMonitor update during chain sync".to_string() } - } else { - ClosureReason::CommitmentTxConfirmed - }; - self.issue_channel_close_events(&chan, reason); - pending_msg_events.push(events::MessageSendEvent::HandleError { - node_id: chan.get_counterparty_node_id(), - action: msgs::ErrorAction::SendErrorMessage { - msg: msgs::ErrorMessage { channel_id: chan.channel_id(), data: "Channel force-closed".to_owned() } - }, - }); } }, MonitorEvent::Completed { funding_txo, monitor_update_id } => { - self.channel_monitor_updated(&funding_txo, monitor_update_id); + self.channel_monitor_updated(&funding_txo, monitor_update_id, counterparty_node_id.as_ref()); }, } } @@ -4888,45 +5168,49 @@ where { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - let by_id = &mut channel_state.by_id; let pending_msg_events = &mut channel_state.pending_msg_events; + let per_peer_state = self.per_peer_state.read().unwrap(); - by_id.retain(|channel_id, chan| { - match chan.maybe_free_holding_cell_htlcs(&self.logger) { - Ok((commitment_opt, holding_cell_failed_htlcs)) => { - if !holding_cell_failed_htlcs.is_empty() { - failed_htlcs.push(( - holding_cell_failed_htlcs, - *channel_id, - chan.get_counterparty_node_id() - )); - } - if let Some((commitment_update, monitor_update)) = commitment_opt { - match self.chain_monitor.update_channel(chan.get_funding_txo().unwrap(), monitor_update) { - ChannelMonitorUpdateStatus::Completed => { - pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { - node_id: chan.get_counterparty_node_id(), - updates: commitment_update, - }); - }, - e => { - has_monitor_update = true; - let (res, close_channel) = handle_monitor_update_res!(self, e, chan, RAACommitmentOrder::CommitmentFirst, channel_id, COMMITMENT_UPDATE_ONLY); - handle_errors.push((chan.get_counterparty_node_id(), res)); - if close_channel { return false; } - }, + for (_cp_id, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + peer_state.channel_by_id.retain(|channel_id, chan| { + match chan.maybe_free_holding_cell_htlcs(&self.logger) { + Ok((commitment_opt, holding_cell_failed_htlcs)) => { + if !holding_cell_failed_htlcs.is_empty() { + failed_htlcs.push(( + holding_cell_failed_htlcs, + *channel_id, + chan.get_counterparty_node_id() + )); + } + if let Some((commitment_update, monitor_update)) = commitment_opt { + match self.chain_monitor.update_channel(chan.get_funding_txo().unwrap(), monitor_update) { + ChannelMonitorUpdateStatus::Completed => { + pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs { + node_id: chan.get_counterparty_node_id(), + updates: commitment_update, + }); + }, + e => { + has_monitor_update = true; + let (res, close_channel) = handle_monitor_update_res!(self, e, chan, RAACommitmentOrder::CommitmentFirst, channel_id, COMMITMENT_UPDATE_ONLY); + handle_errors.push((chan.get_counterparty_node_id(), res)); + if close_channel { return false; } + }, + } } + true + }, + Err(e) => { + let (close_channel, res) = convert_chan_err!(self, e, chan, channel_id); + handle_errors.push((chan.get_counterparty_node_id(), Err(res))); + // ChannelClosed event is generated by handle_error for us + !close_channel } - true - }, - Err(e) => { - let (close_channel, res) = convert_chan_err!(self, e, chan, channel_id); - handle_errors.push((chan.get_counterparty_node_id(), Err(res))); - // ChannelClosed event is generated by handle_error for us - !close_channel } - } - }); + }); + } } let has_update = has_monitor_update || !failed_htlcs.is_empty() || !handle_errors.is_empty(); @@ -4950,43 +5234,47 @@ where { let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; - let by_id = &mut channel_state.by_id; let pending_msg_events = &mut channel_state.pending_msg_events; + let per_peer_state = self.per_peer_state.read().unwrap(); - by_id.retain(|channel_id, chan| { - match chan.maybe_propose_closing_signed(&self.fee_estimator, &self.logger) { - Ok((msg_opt, tx_opt)) => { - if let Some(msg) = msg_opt { - has_update = true; - pending_msg_events.push(events::MessageSendEvent::SendClosingSigned { - node_id: chan.get_counterparty_node_id(), msg, - }); - } - if let Some(tx) = tx_opt { - // We're done with this channel. We got a closing_signed and sent back - // a closing_signed with a closing transaction to broadcast. - if let Ok(update) = self.get_channel_update_for_broadcast(&chan) { - pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { - msg: update + for (_cp_id, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + peer_state.channel_by_id.retain(|channel_id, chan| { + match chan.maybe_propose_closing_signed(&self.fee_estimator, &self.logger) { + Ok((msg_opt, tx_opt)) => { + if let Some(msg) = msg_opt { + has_update = true; + pending_msg_events.push(events::MessageSendEvent::SendClosingSigned { + node_id: chan.get_counterparty_node_id(), msg, }); } + if let Some(tx) = tx_opt { + // We're done with this channel. We got a closing_signed and sent back + // a closing_signed with a closing transaction to broadcast. + if let Ok(update) = self.get_channel_update_for_broadcast(&chan) { + pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { + msg: update + }); + } - self.issue_channel_close_events(chan, ClosureReason::CooperativeClosure); + self.issue_channel_close_events(chan, ClosureReason::CooperativeClosure); - log_info!(self.logger, "Broadcasting {}", log_tx!(tx)); - self.tx_broadcaster.broadcast_transaction(&tx); - update_maps_on_chan_removal!(self, chan); - false - } else { true } - }, - Err(e) => { - has_update = true; - let (close_channel, res) = convert_chan_err!(self, e, chan, channel_id); - handle_errors.push((chan.get_counterparty_node_id(), Err(res))); - !close_channel + log_info!(self.logger, "Broadcasting {}", log_tx!(tx)); + self.tx_broadcaster.broadcast_transaction(&tx); + update_maps_on_chan_removal!(self, chan); + false + } else { true } + }, + Err(e) => { + has_update = true; + let (close_channel, res) = convert_chan_err!(self, e, chan, channel_id); + handle_errors.push((chan.get_counterparty_node_id(), Err(res))); + !close_channel + } } - } - }); + }); + } } for (counterparty_node_id, err) in handle_errors.drain(..) { @@ -5216,10 +5504,15 @@ where pub fn compute_inflight_htlcs(&self) -> InFlightHtlcs { let mut inflight_htlcs = InFlightHtlcs::new(); - for chan in self.channel_state.lock().unwrap().by_id.values() { - for (htlc_source, _) in chan.inflight_htlc_sources() { - if let HTLCSource::OutboundRoute { path, .. } = htlc_source { - inflight_htlcs.process_path(path, self.get_our_node_id()); + let per_peer_state = self.per_peer_state.read().unwrap(); + for (_cp_id, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + for chan in peer_state.channel_by_id.values() { + for (htlc_source, _) in chan.inflight_htlc_sources() { + if let HTLCSource::OutboundRoute { path, .. } = htlc_source { + inflight_htlcs.process_path(path, self.get_our_node_id()); + } } } } @@ -5467,11 +5760,14 @@ where } fn get_relevant_txids(&self) -> Vec<(Txid, Option)> { - let channel_state = self.channel_state.lock().unwrap(); - let mut res = Vec::with_capacity(channel_state.by_id.len()); - for chan in channel_state.by_id.values() { - if let (Some(funding_txo), block_hash) = (chan.get_funding_txo(), chan.get_funding_tx_confirmed_in()) { - res.push((funding_txo.txid, block_hash)); + let mut res = Vec::with_capacity(self.short_to_chan_info.read().unwrap().len()); + for (_cp_id, peer_state_mutex) in self.per_peer_state.read().unwrap().iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + for chan in peer_state.channel_by_id.values() { + if let (Some(funding_txo), block_hash) = (chan.get_funding_txo(), chan.get_funding_tx_confirmed_in()) { + res.push((funding_txo.txid, block_hash)); + } } } res @@ -5513,86 +5809,91 @@ where let mut channel_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_lock; let pending_msg_events = &mut channel_state.pending_msg_events; - channel_state.by_id.retain(|_, channel| { - let res = f(channel); - if let Ok((channel_ready_opt, mut timed_out_pending_htlcs, announcement_sigs)) = res { - for (source, payment_hash) in timed_out_pending_htlcs.drain(..) { - let (failure_code, data) = self.get_htlc_inbound_temp_fail_err_and_data(0x1000|14 /* expiry_too_soon */, &channel); - timed_out_htlcs.push((source, payment_hash, HTLCFailReason::reason(failure_code, data), - HTLCDestination::NextHopChannel { node_id: Some(channel.get_counterparty_node_id()), channel_id: channel.channel_id() })); - } - if let Some(channel_ready) = channel_ready_opt { - send_channel_ready!(self, pending_msg_events, channel, channel_ready); - if channel.is_usable() { - log_trace!(self.logger, "Sending channel_ready with private initial channel_update for our counterparty on channel {}", log_bytes!(channel.channel_id())); - if let Ok(msg) = self.get_channel_update_for_unicast(channel) { - pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate { - node_id: channel.get_counterparty_node_id(), - msg, - }); + let per_peer_state = self.per_peer_state.read().unwrap(); + for (_cp_id, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + peer_state.channel_by_id.retain(|_, channel| { + let res = f(channel); + if let Ok((channel_ready_opt, mut timed_out_pending_htlcs, announcement_sigs)) = res { + for (source, payment_hash) in timed_out_pending_htlcs.drain(..) { + let (failure_code, data) = self.get_htlc_inbound_temp_fail_err_and_data(0x1000|14 /* expiry_too_soon */, &channel); + timed_out_htlcs.push((source, payment_hash, HTLCFailReason::reason(failure_code, data), + HTLCDestination::NextHopChannel { node_id: Some(channel.get_counterparty_node_id()), channel_id: channel.channel_id() })); + } + if let Some(channel_ready) = channel_ready_opt { + send_channel_ready!(self, pending_msg_events, channel, channel_ready); + if channel.is_usable() { + log_trace!(self.logger, "Sending channel_ready with private initial channel_update for our counterparty on channel {}", log_bytes!(channel.channel_id())); + if let Ok(msg) = self.get_channel_update_for_unicast(channel) { + pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate { + node_id: channel.get_counterparty_node_id(), + msg, + }); + } + } else { + log_trace!(self.logger, "Sending channel_ready WITHOUT channel_update for {}", log_bytes!(channel.channel_id())); } - } else { - log_trace!(self.logger, "Sending channel_ready WITHOUT channel_update for {}", log_bytes!(channel.channel_id())); } - } - emit_channel_ready_event!(self, channel); + emit_channel_ready_event!(self, channel); - if let Some(announcement_sigs) = announcement_sigs { - log_trace!(self.logger, "Sending announcement_signatures for channel {}", log_bytes!(channel.channel_id())); - pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures { - node_id: channel.get_counterparty_node_id(), - msg: announcement_sigs, - }); - if let Some(height) = height_opt { - if let Some(announcement) = channel.get_signed_channel_announcement(self.get_our_node_id(), self.genesis_hash, height) { - pending_msg_events.push(events::MessageSendEvent::BroadcastChannelAnnouncement { - msg: announcement, - // Note that announcement_signatures fails if the channel cannot be announced, - // so get_channel_update_for_broadcast will never fail by the time we get here. - update_msg: self.get_channel_update_for_broadcast(channel).unwrap(), - }); + if let Some(announcement_sigs) = announcement_sigs { + log_trace!(self.logger, "Sending announcement_signatures for channel {}", log_bytes!(channel.channel_id())); + pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures { + node_id: channel.get_counterparty_node_id(), + msg: announcement_sigs, + }); + if let Some(height) = height_opt { + if let Some(announcement) = channel.get_signed_channel_announcement(self.get_our_node_id(), self.genesis_hash, height) { + pending_msg_events.push(events::MessageSendEvent::BroadcastChannelAnnouncement { + msg: announcement, + // Note that announcement_signatures fails if the channel cannot be announced, + // so get_channel_update_for_broadcast will never fail by the time we get here. + update_msg: self.get_channel_update_for_broadcast(channel).unwrap(), + }); + } } } - } - if channel.is_our_channel_ready() { - if let Some(real_scid) = channel.get_short_channel_id() { - // If we sent a 0conf channel_ready, and now have an SCID, we add it - // to the short_to_chan_info map here. Note that we check whether we - // can relay using the real SCID at relay-time (i.e. - // enforce option_scid_alias then), and if the funding tx is ever - // un-confirmed we force-close the channel, ensuring short_to_chan_info - // is always consistent. - let mut short_to_chan_info = self.short_to_chan_info.write().unwrap(); - let scid_insert = short_to_chan_info.insert(real_scid, (channel.get_counterparty_node_id(), channel.channel_id())); - assert!(scid_insert.is_none() || scid_insert.unwrap() == (channel.get_counterparty_node_id(), channel.channel_id()), - "SCIDs should never collide - ensure you weren't behind by a full {} blocks when creating channels", - fake_scid::MAX_SCID_BLOCKS_FROM_NOW); + if channel.is_our_channel_ready() { + if let Some(real_scid) = channel.get_short_channel_id() { + // If we sent a 0conf channel_ready, and now have an SCID, we add it + // to the short_to_chan_info map here. Note that we check whether we + // can relay using the real SCID at relay-time (i.e. + // enforce option_scid_alias then), and if the funding tx is ever + // un-confirmed we force-close the channel, ensuring short_to_chan_info + // is always consistent. + let mut short_to_chan_info = self.short_to_chan_info.write().unwrap(); + let scid_insert = short_to_chan_info.insert(real_scid, (channel.get_counterparty_node_id(), channel.channel_id())); + assert!(scid_insert.is_none() || scid_insert.unwrap() == (channel.get_counterparty_node_id(), channel.channel_id()), + "SCIDs should never collide - ensure you weren't behind by a full {} blocks when creating channels", + fake_scid::MAX_SCID_BLOCKS_FROM_NOW); + } } - } - } else if let Err(reason) = res { - update_maps_on_chan_removal!(self, channel); - // It looks like our counterparty went on-chain or funding transaction was - // reorged out of the main chain. Close the channel. - failed_channels.push(channel.force_shutdown(true)); - if let Ok(update) = self.get_channel_update_for_broadcast(&channel) { - pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { - msg: update + } else if let Err(reason) = res { + update_maps_on_chan_removal!(self, channel); + // It looks like our counterparty went on-chain or funding transaction was + // reorged out of the main chain. Close the channel. + failed_channels.push(channel.force_shutdown(true)); + if let Ok(update) = self.get_channel_update_for_broadcast(&channel) { + pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { + msg: update + }); + } + let reason_message = format!("{}", reason); + self.issue_channel_close_events(channel, reason); + pending_msg_events.push(events::MessageSendEvent::HandleError { + node_id: channel.get_counterparty_node_id(), + action: msgs::ErrorAction::SendErrorMessage { msg: msgs::ErrorMessage { + channel_id: channel.channel_id(), + data: reason_message, + } }, }); + return false; } - let reason_message = format!("{}", reason); - self.issue_channel_close_events(channel, reason); - pending_msg_events.push(events::MessageSendEvent::HandleError { - node_id: channel.get_counterparty_node_id(), - action: msgs::ErrorAction::SendErrorMessage { msg: msgs::ErrorMessage { - channel_id: channel.channel_id(), - data: reason_message, - } }, - }); - return false; - } - true - }); + true + }); + } } if let Some(height) = height_opt { @@ -5794,25 +6095,29 @@ where let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier); let mut failed_channels = Vec::new(); let mut no_channels_remain = true; + let mut channel_state = self.channel_state.lock().unwrap(); + let mut per_peer_state = self.per_peer_state.write().unwrap(); { - let mut channel_state_lock = self.channel_state.lock().unwrap(); - let channel_state = &mut *channel_state_lock; let pending_msg_events = &mut channel_state.pending_msg_events; log_debug!(self.logger, "Marking channels with {} disconnected and generating channel_updates. We believe we {} make future connections to this peer.", log_pubkey!(counterparty_node_id), if no_connection_possible { "cannot" } else { "can" }); - channel_state.by_id.retain(|_, chan| { - if chan.get_counterparty_node_id() == *counterparty_node_id { - chan.remove_uncommitted_htlcs_and_mark_paused(&self.logger); - if chan.is_shutdown() { - update_maps_on_chan_removal!(self, chan); - self.issue_channel_close_events(chan, ClosureReason::DisconnectedPeer); - return false; - } else { - no_channels_remain = false; + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + peer_state.channel_by_id.retain(|_, chan| { + if chan.get_counterparty_node_id() == *counterparty_node_id { + chan.remove_uncommitted_htlcs_and_mark_paused(&self.logger); + if chan.is_shutdown() { + update_maps_on_chan_removal!(self, chan); + self.issue_channel_close_events(chan, ClosureReason::DisconnectedPeer); + return false; + } else { + no_channels_remain = false; + } } - } - true - }); + true + }); + } pending_msg_events.retain(|msg| { match msg { &events::MessageSendEvent::SendAcceptChannel { ref node_id, .. } => node_id != counterparty_node_id, @@ -5837,10 +6142,12 @@ where &events::MessageSendEvent::SendGossipTimestampFilter { .. } => false, } }); + mem::drop(channel_state); } if no_channels_remain { - self.per_peer_state.write().unwrap().remove(counterparty_node_id); + per_peer_state.remove(counterparty_node_id); } + mem::drop(per_peer_state); for failure in failed_channels.drain(..) { self.finish_force_close_channel(failure); @@ -5862,6 +6169,7 @@ where match peer_state_lock.entry(counterparty_node_id.clone()) { hash_map::Entry::Vacant(e) => { e.insert(Mutex::new(PeerState { + channel_by_id: HashMap::new(), latest_features: init_msg.features.clone(), })); }, @@ -5874,34 +6182,40 @@ where let mut channel_state_lock = self.channel_state.lock().unwrap(); let channel_state = &mut *channel_state_lock; let pending_msg_events = &mut channel_state.pending_msg_events; - channel_state.by_id.retain(|_, chan| { - let retain = if chan.get_counterparty_node_id() == *counterparty_node_id { - if !chan.have_received_message() { - // If we created this (outbound) channel while we were disconnected from the - // peer we probably failed to send the open_channel message, which is now - // lost. We can't have had anything pending related to this channel, so we just - // drop it. - false - } else { - pending_msg_events.push(events::MessageSendEvent::SendChannelReestablish { - node_id: chan.get_counterparty_node_id(), - msg: chan.get_channel_reestablish(&self.logger), - }); - true - } - } else { true }; - if retain && chan.get_counterparty_node_id() != *counterparty_node_id { - if let Some(msg) = chan.get_signed_channel_announcement(self.get_our_node_id(), self.genesis_hash.clone(), self.best_block.read().unwrap().height()) { - if let Ok(update_msg) = self.get_channel_update_for_broadcast(chan) { - pending_msg_events.push(events::MessageSendEvent::SendChannelAnnouncement { - node_id: *counterparty_node_id, - msg, update_msg, + let per_peer_state = self.per_peer_state.read().unwrap(); + + for (_cp_id, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + peer_state.channel_by_id.retain(|_, chan| { + let retain = if chan.get_counterparty_node_id() == *counterparty_node_id { + if !chan.have_received_message() { + // If we created this (outbound) channel while we were disconnected from the + // peer we probably failed to send the open_channel message, which is now + // lost. We can't have had anything pending related to this channel, so we just + // drop it. + false + } else { + pending_msg_events.push(events::MessageSendEvent::SendChannelReestablish { + node_id: chan.get_counterparty_node_id(), + msg: chan.get_channel_reestablish(&self.logger), }); + true + } + } else { true }; + if retain && chan.get_counterparty_node_id() != *counterparty_node_id { + if let Some(msg) = chan.get_signed_channel_announcement(self.get_our_node_id(), self.genesis_hash.clone(), self.best_block.read().unwrap().height()) { + if let Ok(update_msg) = self.get_channel_update_for_broadcast(chan) { + pending_msg_events.push(events::MessageSendEvent::SendChannelAnnouncement { + node_id: *counterparty_node_id, + msg, update_msg, + }); + } } } - } - retain - }); + retain + }); + } //TODO: Also re-broadcast announcement_signatures Ok(()) } @@ -5920,18 +6234,23 @@ where { // First check if we can advance the channel type and try again. let mut channel_state = self.channel_state.lock().unwrap(); - if let Some(chan) = channel_state.by_id.get_mut(&msg.channel_id) { - if chan.get_counterparty_node_id() != *counterparty_node_id { - return; - } - if let Ok(msg) = chan.maybe_handle_error_without_close(self.genesis_hash) { - channel_state.pending_msg_events.push(events::MessageSendEvent::SendOpenChannel { - node_id: *counterparty_node_id, - msg, - }); - return; + let per_peer_state = self.per_peer_state.read().unwrap(); + if let Some(peer_state_mutex) = per_peer_state.get(counterparty_node_id) { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + if let Some(chan) = peer_state.channel_by_id.get_mut(&msg.channel_id) { + if chan.get_counterparty_node_id() != *counterparty_node_id { + return; + } + if let Ok(msg) = chan.maybe_handle_error_without_close(self.genesis_hash) { + channel_state.pending_msg_events.push(events::MessageSendEvent::SendOpenChannel { + node_id: *counterparty_node_id, + msg, + }); + return; + } } - } + } else { return; } } // Untrusted messages from peer, we throw away the error if id points to a non-existent channel @@ -6401,19 +6720,29 @@ where } { - // Take `channel_state` lock temporarily to avoid creating a lock order that requires - // that the `forward_htlcs` lock is taken after `channel_state` - let channel_state = self.channel_state.lock().unwrap(); + let per_peer_state = self.per_peer_state.read().unwrap(); let mut unfunded_channels = 0; - for (_, channel) in channel_state.by_id.iter() { - if !channel.is_funding_initiated() { - unfunded_channels += 1; + let mut number_of_channels = 0; + for (_, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + number_of_channels += peer_state.channel_by_id.len(); + for (_, channel) in peer_state.channel_by_id.iter() { + if !channel.is_funding_initiated() { + unfunded_channels += 1; + } } } - ((channel_state.by_id.len() - unfunded_channels) as u64).write(writer)?; - for (_, channel) in channel_state.by_id.iter() { - if channel.is_funding_initiated() { - channel.write(writer)?; + + ((number_of_channels - unfunded_channels) as u64).write(writer)?; + + for (_, peer_state_mutex) in per_peer_state.iter() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + for (_, channel) in peer_state.channel_by_id.iter() { + if channel.is_funding_initiated() { + channel.write(writer)?; + } } } } @@ -6695,7 +7024,7 @@ where let channel_count: u64 = Readable::read(reader)?; let mut funding_txo_set = HashSet::with_capacity(cmp::min(channel_count as usize, 128)); - let mut by_id = HashMap::with_capacity(cmp::min(channel_count as usize, 128)); + let mut peer_channels: HashMap::Signer>>> = HashMap::with_capacity(cmp::min(channel_count as usize, 128)); let mut id_to_peer = HashMap::with_capacity(cmp::min(channel_count as usize, 128)); let mut short_to_chan_info = HashMap::with_capacity(cmp::min(channel_count as usize, 128)); let mut channel_closures = Vec::new(); @@ -6761,7 +7090,17 @@ where if channel.is_funding_initiated() { id_to_peer.insert(channel.channel_id(), channel.get_counterparty_node_id()); } - by_id.insert(channel.channel_id(), channel); + match peer_channels.entry(channel.get_counterparty_node_id()) { + hash_map::Entry::Occupied(mut entry) => { + let by_id_map = entry.get_mut(); + by_id_map.insert(channel.channel_id(), channel); + }, + hash_map::Entry::Vacant(entry) => { + let mut by_id_map = HashMap::new(); + by_id_map.insert(channel.channel_id(), channel); + entry.insert(by_id_map); + } + } } } else if channel.is_awaiting_initial_mon_persist() { // If we were persisted and shut down while the initial ChannelMonitor persistence @@ -6816,10 +7155,11 @@ where } let peer_count: u64 = Readable::read(reader)?; - let mut per_peer_state = HashMap::with_capacity(cmp::min(peer_count as usize, MAX_ALLOC_SIZE/mem::size_of::<(PublicKey, Mutex)>())); + let mut per_peer_state = HashMap::with_capacity(cmp::min(peer_count as usize, MAX_ALLOC_SIZE/mem::size_of::<(PublicKey, Mutex::Signer>>)>())); for _ in 0..peer_count { let peer_pubkey = Readable::read(reader)?; let peer_state = PeerState { + channel_by_id: peer_channels.remove(&peer_pubkey).unwrap_or(HashMap::new()), latest_features: Readable::read(reader)?, }; per_peer_state.insert(peer_pubkey, Mutex::new(peer_state)); @@ -6912,7 +7252,7 @@ where // We only rebuild the pending payments map if we were most recently serialized by // 0.0.102+ for (_, monitor) in args.channel_monitors.iter() { - if by_id.get(&monitor.get_funding_txo().0.to_channel_id()).is_none() { + if id_to_peer.get(&monitor.get_funding_txo().0.to_channel_id()).is_none() { for (htlc_source, htlc) in monitor.get_pending_outbound_htlcs() { if let HTLCSource::OutboundRoute { payment_id, session_priv, path, payment_secret, .. } = htlc_source { if path.is_empty() { @@ -7060,28 +7400,32 @@ where } let mut outbound_scid_aliases = HashSet::new(); - for (chan_id, chan) in by_id.iter_mut() { - if chan.outbound_scid_alias() == 0 { - let mut outbound_scid_alias; - loop { - outbound_scid_alias = fake_scid::Namespace::OutboundAlias - .get_fake_scid(best_block_height, &genesis_hash, fake_scid_rand_bytes.as_ref().unwrap(), &args.keys_manager); - if outbound_scid_aliases.insert(outbound_scid_alias) { break; } - } - chan.set_outbound_scid_alias(outbound_scid_alias); - } else if !outbound_scid_aliases.insert(chan.outbound_scid_alias()) { - // Note that in rare cases its possible to hit this while reading an older - // channel if we just happened to pick a colliding outbound alias above. - log_error!(args.logger, "Got duplicate outbound SCID alias; {}", chan.outbound_scid_alias()); - return Err(DecodeError::InvalidValue); - } - if chan.is_usable() { - if short_to_chan_info.insert(chan.outbound_scid_alias(), (chan.get_counterparty_node_id(), *chan_id)).is_some() { + for (_peer_node_id, peer_state_mutex) in per_peer_state.iter_mut() { + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + for (chan_id, chan) in peer_state.channel_by_id.iter_mut() { + if chan.outbound_scid_alias() == 0 { + let mut outbound_scid_alias; + loop { + outbound_scid_alias = fake_scid::Namespace::OutboundAlias + .get_fake_scid(best_block_height, &genesis_hash, fake_scid_rand_bytes.as_ref().unwrap(), &args.keys_manager); + if outbound_scid_aliases.insert(outbound_scid_alias) { break; } + } + chan.set_outbound_scid_alias(outbound_scid_alias); + } else if !outbound_scid_aliases.insert(chan.outbound_scid_alias()) { // Note that in rare cases its possible to hit this while reading an older // channel if we just happened to pick a colliding outbound alias above. log_error!(args.logger, "Got duplicate outbound SCID alias; {}", chan.outbound_scid_alias()); return Err(DecodeError::InvalidValue); } + if chan.is_usable() { + if short_to_chan_info.insert(chan.outbound_scid_alias(), (chan.get_counterparty_node_id(), *chan_id)).is_some() { + // Note that in rare cases its possible to hit this while reading an older + // channel if we just happened to pick a colliding outbound alias above. + log_error!(args.logger, "Got duplicate outbound SCID alias; {}", chan.outbound_scid_alias()); + return Err(DecodeError::InvalidValue); + } + } } } @@ -7118,8 +7462,13 @@ where // without the new monitor persisted - we'll end up right back here on // restart. let previous_channel_id = claimable_htlc.prev_hop.outpoint.to_channel_id(); - if let Some(channel) = by_id.get_mut(&previous_channel_id) { - channel.claim_htlc_while_disconnected_dropping_mon_update(claimable_htlc.prev_hop.htlc_id, payment_preimage, &args.logger); + if let Some(peer_node_id) = id_to_peer.get(&previous_channel_id){ + let peer_state_mutex = per_peer_state.get(peer_node_id).unwrap(); + let mut peer_state_lock = peer_state_mutex.lock().unwrap(); + let peer_state = &mut *peer_state_lock; + if let Some(channel) = peer_state.channel_by_id.get_mut(&previous_channel_id) { + channel.claim_htlc_while_disconnected_dropping_mon_update(claimable_htlc.prev_hop.htlc_id, payment_preimage, &args.logger); + } } if let Some(previous_hop_monitor) = args.channel_monitors.get(&claimable_htlc.prev_hop.outpoint) { previous_hop_monitor.provide_payment_preimage(&payment_hash, &payment_preimage, &args.tx_broadcaster, &bounded_fee_estimator, &args.logger); @@ -7145,7 +7494,6 @@ where best_block: RwLock::new(BestBlock::new(best_block_hash, best_block_height)), channel_state: Mutex::new(ChannelHolder { - by_id, pending_msg_events: Vec::new(), }), inbound_payment_key: expanded_inbound_key, @@ -7168,7 +7516,7 @@ where highest_seen_timestamp: AtomicUsize::new(highest_seen_timestamp as usize), - per_peer_state: RwLock::new(per_peer_state), + per_peer_state: FairRwLock::new(per_peer_state), pending_events: Mutex::new(pending_events_read), pending_background_events: Mutex::new(pending_background_events_read), diff --git a/lightning/src/ln/functional_test_utils.rs b/lightning/src/ln/functional_test_utils.rs index d6e0456b1..4430128ea 100644 --- a/lightning/src/ln/functional_test_utils.rs +++ b/lightning/src/ln/functional_test_utils.rs @@ -560,10 +560,11 @@ macro_rules! get_htlc_update_msgs { #[cfg(test)] macro_rules! get_channel_ref { - ($node: expr, $lock: ident, $channel_id: expr) => { + ($node: expr, $counterparty_node: expr, $per_peer_state_lock: ident, $peer_state_lock: ident, $channel_id: expr) => { { - $lock = $node.node.channel_state.lock().unwrap(); - $lock.by_id.get_mut(&$channel_id).unwrap() + $per_peer_state_lock = $node.node.per_peer_state.read().unwrap(); + $peer_state_lock = $per_peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap(); + $peer_state_lock.channel_by_id.get_mut(&$channel_id).unwrap() } } } @@ -572,8 +573,9 @@ macro_rules! get_channel_ref { macro_rules! get_feerate { ($node: expr, $counterparty_node: expr, $channel_id: expr) => { { - let mut lock; - let chan = get_channel_ref!($node, lock, $channel_id); + let mut per_peer_state_lock; + let mut peer_state_lock; + let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id); chan.get_feerate() } } @@ -583,8 +585,9 @@ macro_rules! get_feerate { macro_rules! get_opt_anchors { ($node: expr, $counterparty_node: expr, $channel_id: expr) => { { - let mut lock; - let chan = get_channel_ref!($node, lock, $channel_id); + let mut per_peer_state_lock; + let mut peer_state_lock; + let chan = get_channel_ref!($node, $counterparty_node, per_peer_state_lock, peer_state_lock, $channel_id); chan.opt_anchors() } } @@ -1896,9 +1899,10 @@ pub fn do_claim_payment_along_route<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, { $node.node.handle_update_fulfill_htlc(&$prev_node.node.get_our_node_id(), &next_msgs.as_ref().unwrap().0); let fee = { - let channel_state = $node.node.channel_state.lock().unwrap(); - let channel = channel_state - .by_id.get(&next_msgs.as_ref().unwrap().0.channel_id).unwrap(); + let per_peer_state = $node.node.per_peer_state.read().unwrap(); + let peer_state = per_peer_state.get(&$prev_node.node.get_our_node_id()) + .unwrap().lock().unwrap(); + let channel = peer_state.channel_by_id.get(&next_msgs.as_ref().unwrap().0.channel_id).unwrap(); if let Some(prev_config) = channel.prev_config() { prev_config.forwarding_fee_base_msat } else { @@ -2406,8 +2410,9 @@ pub fn get_announce_close_broadcast_events<'a, 'b, 'c>(nodes: &Vec {{ - let chan_lock = $node.node.channel_state.lock().unwrap(); - let chan = chan_lock.by_id.get(&$channel_id).unwrap(); + let peer_state_lock = $node.node.per_peer_state.read().unwrap(); + let chan_lock = peer_state_lock.get(&$counterparty_node.node.get_our_node_id()).unwrap().lock().unwrap(); + let chan = chan_lock.channel_by_id.get(&$channel_id).unwrap(); chan.get_value_stat() }} } diff --git a/lightning/src/ln/functional_tests.rs b/lightning/src/ln/functional_tests.rs index cc57e2f51..e180f68ca 100644 --- a/lightning/src/ln/functional_tests.rs +++ b/lightning/src/ln/functional_tests.rs @@ -175,8 +175,11 @@ fn do_test_counterparty_no_reserve(send_from_initiator: bool) { } nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), channelmanager::provided_init_features(), &accept_channel_message); { - let mut lock; - let mut chan = get_channel_ref!(if send_from_initiator { &nodes[1] } else { &nodes[0] }, lock, temp_channel_id); + let sender_node = if send_from_initiator { &nodes[1] } else { &nodes[0] }; + let counterparty_node = if send_from_initiator { &nodes[0] } else { &nodes[1] }; + let mut sender_node_per_peer_lock; + let mut sender_node_peer_state_lock; + let mut chan = get_channel_ref!(sender_node, counterparty_node, sender_node_per_peer_lock, sender_node_peer_state_lock, temp_channel_id); chan.holder_selected_channel_reserve_satoshis = 0; chan.holder_max_htlc_value_in_flight_msat = 100_000_000; } @@ -686,16 +689,18 @@ fn test_update_fee_that_funder_cannot_afford() { // Get the EnforcingSigner for each channel, which will be used to (1) get the keys // needed to sign the new commitment tx and (2) sign the new commitment tx. let (local_revocation_basepoint, local_htlc_basepoint, local_funding) = { - let chan_lock = nodes[0].node.channel_state.lock().unwrap(); - let local_chan = chan_lock.by_id.get(&chan.2).unwrap(); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + let local_chan = chan_lock.channel_by_id.get(&chan.2).unwrap(); let chan_signer = local_chan.get_signer(); let pubkeys = chan_signer.pubkeys(); (pubkeys.revocation_basepoint, pubkeys.htlc_basepoint, pubkeys.funding_pubkey) }; let (remote_delayed_payment_basepoint, remote_htlc_basepoint,remote_point, remote_funding) = { - let chan_lock = nodes[1].node.channel_state.lock().unwrap(); - let remote_chan = chan_lock.by_id.get(&chan.2).unwrap(); + let per_peer_state = nodes[1].node.per_peer_state.read().unwrap(); + let chan_lock = per_peer_state.get(&nodes[0].node.get_our_node_id()).unwrap().lock().unwrap(); + let remote_chan = chan_lock.channel_by_id.get(&chan.2).unwrap(); let chan_signer = remote_chan.get_signer(); let pubkeys = chan_signer.pubkeys(); (pubkeys.delayed_payment_basepoint, pubkeys.htlc_basepoint, @@ -708,8 +713,9 @@ fn test_update_fee_that_funder_cannot_afford() { &remote_htlc_basepoint, &local_revocation_basepoint, &local_htlc_basepoint); let res = { - let local_chan_lock = nodes[0].node.channel_state.lock().unwrap(); - let local_chan = local_chan_lock.by_id.get(&chan.2).unwrap(); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let local_chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + let local_chan = local_chan_lock.channel_by_id.get(&chan.2).unwrap(); let local_chan_signer = local_chan.get_signer(); let mut htlcs: Vec<(HTLCOutputInCommitment, ())> = vec![]; let commitment_tx = CommitmentTransaction::new_with_auxiliary_htlc_data( @@ -1385,8 +1391,9 @@ fn test_fee_spike_violation_fails_htlc() { // Get the EnforcingSigner for each channel, which will be used to (1) get the keys // needed to sign the new commitment tx and (2) sign the new commitment tx. let (local_revocation_basepoint, local_htlc_basepoint, local_secret, next_local_point, local_funding) = { - let chan_lock = nodes[0].node.channel_state.lock().unwrap(); - let local_chan = chan_lock.by_id.get(&chan.2).unwrap(); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + let local_chan = chan_lock.channel_by_id.get(&chan.2).unwrap(); let chan_signer = local_chan.get_signer(); // Make the signer believe we validated another commitment, so we can release the secret chan_signer.get_enforcement_state().last_holder_commitment -= 1; @@ -1398,8 +1405,9 @@ fn test_fee_spike_violation_fails_htlc() { chan_signer.pubkeys().funding_pubkey) }; let (remote_delayed_payment_basepoint, remote_htlc_basepoint, remote_point, remote_funding) = { - let chan_lock = nodes[1].node.channel_state.lock().unwrap(); - let remote_chan = chan_lock.by_id.get(&chan.2).unwrap(); + let per_peer_state = nodes[1].node.per_peer_state.read().unwrap(); + let chan_lock = per_peer_state.get(&nodes[0].node.get_our_node_id()).unwrap().lock().unwrap(); + let remote_chan = chan_lock.channel_by_id.get(&chan.2).unwrap(); let chan_signer = remote_chan.get_signer(); let pubkeys = chan_signer.pubkeys(); (pubkeys.delayed_payment_basepoint, pubkeys.htlc_basepoint, @@ -1426,8 +1434,9 @@ fn test_fee_spike_violation_fails_htlc() { let commitment_number = INITIAL_COMMITMENT_NUMBER - 1; let res = { - let local_chan_lock = nodes[0].node.channel_state.lock().unwrap(); - let local_chan = local_chan_lock.by_id.get(&chan.2).unwrap(); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let local_chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + let local_chan = local_chan_lock.channel_by_id.get(&chan.2).unwrap(); let local_chan_signer = local_chan.get_signer(); let commitment_tx = CommitmentTransaction::new_with_auxiliary_htlc_data( commitment_number, @@ -3062,7 +3071,8 @@ fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool, use let value = if use_dust { // The dust limit applied to HTLC outputs considers the fee of the HTLC transaction as // well, so HTLCs at exactly the dust limit will not be included in commitment txn. - nodes[2].node.channel_state.lock().unwrap().by_id.get(&chan_2.2).unwrap().holder_dust_limit_satoshis * 1000 + nodes[2].node.per_peer_state.read().unwrap().get(&nodes[1].node.get_our_node_id()) + .unwrap().lock().unwrap().channel_by_id.get(&chan_2.2).unwrap().holder_dust_limit_satoshis * 1000 } else { 3000000 }; let (_, first_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], value); @@ -4884,7 +4894,8 @@ fn do_test_fail_backwards_unrevoked_remote_announce(deliver_last_raa: bool, anno send_payment(&nodes[1], &[&nodes[2], &nodes[3], &nodes[5]], 500000); assert_eq!(get_local_commitment_txn!(nodes[3], chan_2_3.2)[0].output.len(), 2); - let ds_dust_limit = nodes[3].node.channel_state.lock().unwrap().by_id.get(&chan_2_3.2).unwrap().holder_dust_limit_satoshis; + let ds_dust_limit = nodes[3].node.per_peer_state.read().unwrap().get(&nodes[2].node.get_our_node_id()) + .unwrap().lock().unwrap().channel_by_id.get(&chan_2_3.2).unwrap().holder_dust_limit_satoshis; // 0th HTLC: let (_, payment_hash_1, _) = route_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], ds_dust_limit*1000); // not added < dust limit + HTLC tx fee // 1st HTLC: @@ -5985,7 +5996,8 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_num_and_htlc_id_increment() let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs); let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0, channelmanager::provided_init_features(), channelmanager::provided_init_features()); - let max_accepted_htlcs = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().counterparty_max_accepted_htlcs as u64; + let max_accepted_htlcs = nodes[1].node.per_peer_state.read().unwrap().get(&nodes[0].node.get_our_node_id()) + .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().counterparty_max_accepted_htlcs as u64; for i in 0..max_accepted_htlcs { let (route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], 100000); @@ -6054,8 +6066,9 @@ fn test_update_add_htlc_bolt2_receiver_check_amount_received_more_than_min() { let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 95000000, channelmanager::provided_init_features(), channelmanager::provided_init_features()); let htlc_minimum_msat: u64; { - let chan_lock = nodes[0].node.channel_state.lock().unwrap(); - let channel = chan_lock.by_id.get(&chan.2).unwrap(); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + let channel = chan_lock.channel_by_id.get(&chan.2).unwrap(); htlc_minimum_msat = channel.get_holder_htlc_minimum_msat(); } @@ -6633,7 +6646,8 @@ fn do_test_failure_delay_dust_htlc_local_commitment(announce_latest: bool) { let nodes = create_network(2, &node_cfgs, &node_chanmgrs); let chan =create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features()); - let bs_dust_limit = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().holder_dust_limit_satoshis; + let bs_dust_limit = nodes[1].node.per_peer_state.read().unwrap().get(&nodes[0].node.get_our_node_id()) + .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().holder_dust_limit_satoshis; // We route 2 dust-HTLCs between A and B let (_, payment_hash_1, _) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000); @@ -6724,7 +6738,8 @@ fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) { let nodes = create_network(3, &node_cfgs, &node_chanmgrs); let chan = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features()); - let bs_dust_limit = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().holder_dust_limit_satoshis; + let bs_dust_limit = nodes[1].node.per_peer_state.read().unwrap().get(&nodes[0].node.get_our_node_id()) + .unwrap().lock().unwrap().channel_by_id.get(&chan.2).unwrap().holder_dust_limit_satoshis; let (_payment_preimage_1, dust_hash, _payment_secret_1) = route_payment(&nodes[0], &[&nodes[1]], bs_dust_limit*1000); let (_payment_preimage_2, non_dust_hash, _payment_secret_2) = route_payment(&nodes[0], &[&nodes[1]], 1000000); @@ -7387,8 +7402,9 @@ fn test_counterparty_raa_skip_no_crash() { let per_commitment_secret; let next_per_commitment_point; { - let mut guard = nodes[0].node.channel_state.lock().unwrap(); - let keys = guard.by_id.get_mut(&channel_id).unwrap().get_signer(); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let mut guard = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + let keys = guard.channel_by_id.get_mut(&channel_id).unwrap().get_signer(); const INITIAL_COMMITMENT_NUMBER: u64 = (1 << 48) - 1; @@ -7746,8 +7762,9 @@ fn test_reject_funding_before_inbound_channel_accepted() { // `handle_accept_channel`, which is required in order for `create_funding_transaction` to // succeed when `nodes[0]` is passed to it. let accept_chan_msg = { - let mut lock; - let channel = get_channel_ref!(&nodes[1], lock, temp_channel_id); + let mut node_1_per_peer_lock; + let mut node_1_peer_state_lock; + let channel = get_channel_ref!(&nodes[1], nodes[0], node_1_per_peer_lock, node_1_peer_state_lock, temp_channel_id); channel.get_accept_channel_message() }; nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), channelmanager::provided_init_features(), &accept_chan_msg); @@ -8090,12 +8107,15 @@ fn test_update_err_monitor_lockdown() { let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); assert_eq!(updates.update_fulfill_htlcs.len(), 1); nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]); - if let Some(ref mut channel) = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2) { + { + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let mut channel = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1.2); if let Ok((_, _, update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) { assert_eq!(watchtower.chain_monitor.update_channel(outpoint, update.clone()), ChannelMonitorUpdateStatus::PermanentFailure); assert_eq!(nodes[0].chain_monitor.update_channel(outpoint, update), ChannelMonitorUpdateStatus::Completed); } else { assert!(false); } - } else { assert!(false); }; + } // Our local monitor is in-sync and hasn't processed yet timeout check_added_monitors!(nodes[0], 1); let events = nodes[0].node.get_and_clear_pending_events(); @@ -8181,14 +8201,17 @@ fn test_concurrent_monitor_claim() { let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); assert_eq!(updates.update_add_htlcs.len(), 1); nodes[0].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &updates.update_add_htlcs[0]); - if let Some(ref mut channel) = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2) { + { + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let mut channel = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1.2); if let Ok((_, _, update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].logger) { // Watchtower Alice should already have seen the block and reject the update assert_eq!(watchtower_alice.chain_monitor.update_channel(outpoint, update.clone()), ChannelMonitorUpdateStatus::PermanentFailure); assert_eq!(watchtower_bob.chain_monitor.update_channel(outpoint, update.clone()), ChannelMonitorUpdateStatus::Completed); assert_eq!(nodes[0].chain_monitor.update_channel(outpoint, update), ChannelMonitorUpdateStatus::Completed); } else { assert!(false); } - } else { assert!(false); }; + } // Our local monitor is in-sync and hasn't processed yet timeout check_added_monitors!(nodes[0], 1); @@ -8576,12 +8599,13 @@ fn test_duplicate_chan_id() { create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 100000, 42); // Get and check the FundingGenerationReady event let funding_created = { - let mut a_channel_lock = nodes[0].node.channel_state.lock().unwrap(); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let mut a_peer_state = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); // Once we call `get_outbound_funding_created` the channel has a duplicate channel_id as // another channel in the ChannelManager - an invalid state. Thus, we'd panic later when we // try to create another channel. Instead, we drop the channel entirely here (leaving the // channelmanager in a possibly nonsense state instead). - let mut as_chan = a_channel_lock.by_id.remove(&open_chan_2_msg.temporary_channel_id).unwrap(); + let mut as_chan = a_peer_state.channel_by_id.remove(&open_chan_2_msg.temporary_channel_id).unwrap(); let logger = test_utils::TestLogger::new(); as_chan.get_outbound_funding_created(tx.clone(), funding_outpoint, &&logger).unwrap() }; @@ -9236,9 +9260,10 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e let (temporary_channel_id, tx, _) = create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 1_000_000, 42); if on_holder_tx { - if let Some(mut chan) = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&temporary_channel_id) { - chan.holder_dust_limit_satoshis = 546; - } + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let mut chan = get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, temporary_channel_id); + chan.holder_dust_limit_satoshis = 546; } nodes[0].node.funding_transaction_generated(&temporary_channel_id, &nodes[1].node.get_our_node_id(), tx.clone()).unwrap(); @@ -9253,8 +9278,9 @@ fn do_test_max_dust_htlc_exposure(dust_outbound_balance: bool, exposure_breach_e update_nodes_with_chan_announce(&nodes, 0, 1, &announcement, &as_update, &bs_update); let dust_buffer_feerate = { - let chan_lock = nodes[0].node.channel_state.lock().unwrap(); - let chan = chan_lock.by_id.get(&channel_id).unwrap(); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let chan_lock = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + let chan = chan_lock.channel_by_id.get(&channel_id).unwrap(); chan.get_dust_buffer_feerate(None) as u64 }; let dust_outbound_htlc_on_holder_tx_msat: u64 = (dust_buffer_feerate * htlc_timeout_tx_weight(opt_anchors) / 1000 + open_channel.dust_limit_satoshis - 1) * 1000; diff --git a/lightning/src/ln/onion_route_tests.rs b/lightning/src/ln/onion_route_tests.rs index 4f90202fd..cad6952d3 100644 --- a/lightning/src/ln/onion_route_tests.rs +++ b/lightning/src/ln/onion_route_tests.rs @@ -503,7 +503,9 @@ fn test_onion_failure() { Some(NetworkUpdate::ChannelFailure{short_channel_id, is_permanent:true}), Some(short_channel_id)); let short_channel_id = channels[1].0.contents.short_channel_id; - let amt_to_forward = nodes[1].node.channel_state.lock().unwrap().by_id.get(&channels[1].2).unwrap().get_counterparty_htlc_minimum_msat() - 1; + let amt_to_forward = nodes[1].node.per_peer_state.read().unwrap().get(&nodes[2].node.get_our_node_id()) + .unwrap().lock().unwrap().channel_by_id.get(&channels[1].2).unwrap() + .get_counterparty_htlc_minimum_msat() - 1; let mut bogus_route = route.clone(); let route_len = bogus_route.paths[0].len(); bogus_route.paths[0][route_len-1].fee_msat = amt_to_forward; diff --git a/lightning/src/ln/payment_tests.rs b/lightning/src/ln/payment_tests.rs index 6c3f98df4..e69b628fc 100644 --- a/lightning/src/ln/payment_tests.rs +++ b/lightning/src/ln/payment_tests.rs @@ -500,8 +500,10 @@ fn do_retry_with_no_persist(confirm_before_reload: bool) { // and not the original fee. We also update node[1]'s relevant config as // do_claim_payment_along_route expects us to never overpay. { - let mut channel_state = nodes[1].node.channel_state.lock().unwrap(); - let mut channel = channel_state.by_id.get_mut(&chan_id_2).unwrap(); + let per_peer_state = nodes[1].node.per_peer_state.read().unwrap(); + let mut peer_state = per_peer_state.get(&nodes[2].node.get_our_node_id()) + .unwrap().lock().unwrap(); + let mut channel = peer_state.channel_by_id.get_mut(&chan_id_2).unwrap(); let mut new_config = channel.config(); new_config.forwarding_fee_base_msat += 100_000; channel.update_config(&new_config); @@ -1267,10 +1269,12 @@ fn test_trivial_inflight_htlc_tracking(){ { let inflight_htlcs = node_chanmgrs[0].compute_inflight_htlcs(); - let node_0_channel_lock = nodes[0].node.channel_state.lock().unwrap(); - let node_1_channel_lock = nodes[1].node.channel_state.lock().unwrap(); - let channel_1 = node_0_channel_lock.by_id.get(&chan_1_id).unwrap(); - let channel_2 = node_1_channel_lock.by_id.get(&chan_2_id).unwrap(); + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let mut node_1_per_peer_lock; + let mut node_1_peer_state_lock; + let channel_1 = get_channel_ref!(&nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1_id); + let channel_2 = get_channel_ref!(&nodes[1], nodes[2], node_1_per_peer_lock, node_1_peer_state_lock, chan_2_id); let chan_1_used_liquidity = inflight_htlcs.used_liquidity_msat( &NodeId::from_pubkey(&nodes[0].node.get_our_node_id()) , @@ -1292,10 +1296,12 @@ fn test_trivial_inflight_htlc_tracking(){ { let inflight_htlcs = node_chanmgrs[0].compute_inflight_htlcs(); - let node_0_channel_lock = nodes[0].node.channel_state.lock().unwrap(); - let node_1_channel_lock = nodes[1].node.channel_state.lock().unwrap(); - let channel_1 = node_0_channel_lock.by_id.get(&chan_1_id).unwrap(); - let channel_2 = node_1_channel_lock.by_id.get(&chan_2_id).unwrap(); + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let mut node_1_per_peer_lock; + let mut node_1_peer_state_lock; + let channel_1 = get_channel_ref!(&nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1_id); + let channel_2 = get_channel_ref!(&nodes[1], nodes[2], node_1_per_peer_lock, node_1_peer_state_lock, chan_2_id); let chan_1_used_liquidity = inflight_htlcs.used_liquidity_msat( &NodeId::from_pubkey(&nodes[0].node.get_our_node_id()) , @@ -1318,10 +1324,12 @@ fn test_trivial_inflight_htlc_tracking(){ { let inflight_htlcs = node_chanmgrs[0].compute_inflight_htlcs(); - let node_0_channel_lock = nodes[0].node.channel_state.lock().unwrap(); - let node_1_channel_lock = nodes[1].node.channel_state.lock().unwrap(); - let channel_1 = node_0_channel_lock.by_id.get(&chan_1_id).unwrap(); - let channel_2 = node_1_channel_lock.by_id.get(&chan_2_id).unwrap(); + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let mut node_1_per_peer_lock; + let mut node_1_peer_state_lock; + let channel_1 = get_channel_ref!(&nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_1_id); + let channel_2 = get_channel_ref!(&nodes[1], nodes[2], node_1_per_peer_lock, node_1_peer_state_lock, chan_2_id); let chan_1_used_liquidity = inflight_htlcs.used_liquidity_msat( &NodeId::from_pubkey(&nodes[0].node.get_our_node_id()) , @@ -1362,8 +1370,9 @@ fn test_holding_cell_inflight_htlcs() { let inflight_htlcs = node_chanmgrs[0].compute_inflight_htlcs(); { - let channel_lock = nodes[0].node.channel_state.lock().unwrap(); - let channel = channel_lock.by_id.get(&channel_id).unwrap(); + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + let channel = get_channel_ref!(&nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, channel_id); let used_liquidity = inflight_htlcs.used_liquidity_msat( &NodeId::from_pubkey(&nodes[0].node.get_our_node_id()) , diff --git a/lightning/src/ln/reorg_tests.rs b/lightning/src/ln/reorg_tests.rs index c261c3d6e..b6b454c53 100644 --- a/lightning/src/ln/reorg_tests.rs +++ b/lightning/src/ln/reorg_tests.rs @@ -24,7 +24,6 @@ use bitcoin::blockdata::opcodes; use bitcoin::secp256k1::Secp256k1; use crate::prelude::*; -use core::mem; use bitcoin::hashes::Hash; use bitcoin::TxMerkleNode; @@ -267,10 +266,12 @@ fn do_test_unconf_chan(reload_node: bool, reorg_after_reload: bool, use_funding_ let chan_conf_height = core::cmp::max(nodes[0].best_block_info().1 + 1, nodes[1].best_block_info().1 + 1); let chan = create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features()); - let channel_state = nodes[0].node.channel_state.lock().unwrap(); - assert_eq!(channel_state.by_id.len(), 1); - assert_eq!(nodes[0].node.short_to_chan_info.read().unwrap().len(), 2); - mem::drop(channel_state); + { + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let peer_state = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + assert_eq!(peer_state.channel_by_id.len(), 1); + assert_eq!(nodes[0].node.short_to_chan_info.read().unwrap().len(), 2); + } assert_eq!(nodes[0].node.list_channels()[0].confirmations, Some(10)); assert_eq!(nodes[1].node.list_channels()[0].confirmations, Some(10)); @@ -303,8 +304,9 @@ fn do_test_unconf_chan(reload_node: bool, reorg_after_reload: bool, use_funding_ handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Channel closed because of an exception: Funding transaction was un-confirmed. Locked at 6 confs, now have 0 confs."); check_added_monitors!(nodes[1], 1); { - let channel_state = nodes[0].node.channel_state.lock().unwrap(); - assert_eq!(channel_state.by_id.len(), 0); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let peer_state = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + assert_eq!(peer_state.channel_by_id.len(), 0); assert_eq!(nodes[0].node.short_to_chan_info.read().unwrap().len(), 0); } } @@ -354,8 +356,9 @@ fn do_test_unconf_chan(reload_node: bool, reorg_after_reload: bool, use_funding_ handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Channel closed because of an exception: Funding transaction was un-confirmed. Locked at 6 confs, now have 0 confs."); check_added_monitors!(nodes[1], 1); { - let channel_state = nodes[0].node.channel_state.lock().unwrap(); - assert_eq!(channel_state.by_id.len(), 0); + let per_peer_state = nodes[0].node.per_peer_state.read().unwrap(); + let peer_state = per_peer_state.get(&nodes[1].node.get_our_node_id()).unwrap().lock().unwrap(); + assert_eq!(peer_state.channel_by_id.len(), 0); assert_eq!(nodes[0].node.short_to_chan_info.read().unwrap().len(), 0); } } diff --git a/lightning/src/ln/shutdown_tests.rs b/lightning/src/ln/shutdown_tests.rs index 6a0d7c61f..e47d7209f 100644 --- a/lightning/src/ln/shutdown_tests.rs +++ b/lightning/src/ln/shutdown_tests.rs @@ -761,8 +761,9 @@ fn do_test_closing_signed_reinit_timeout(timeout_step: TimeoutStep) { // nodes[1] should happily accept and respond to. node_0_closing_signed.fee_range.as_mut().unwrap().max_fee_satoshis *= 10; { - let mut lock; - get_channel_ref!(nodes[0], lock, chan_id).closing_fee_limits.as_mut().unwrap().1 *= 10; + let mut node_0_per_peer_lock; + let mut node_0_peer_state_lock; + get_channel_ref!(nodes[0], nodes[1], node_0_per_peer_lock, node_0_peer_state_lock, chan_id).closing_fee_limits.as_mut().unwrap().1 *= 10; } nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &node_0_closing_signed); let node_1_closing_signed = get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id()); -- 2.39.5