//! The top-level channel management and payment tracking stuff lives here.
//!
-//! The ChannelManager is the main chunk of logic implementing the lightning protocol and is
+//! The [`ChannelManager`] is the main chunk of logic implementing the lightning protocol and is
//! responsible for tracking which channels are open, HTLCs are in flight and reestablishing those
//! upon reconnect to the relevant peer(s).
//!
use crate::ln::outbound_payment;
use crate::ln::outbound_payment::{OutboundPayments, PaymentAttempts, PendingOutboundPayment};
use crate::ln::wire::Encode;
-use crate::chain::keysinterface::{EntropySource, KeysManager, NodeSigner, Recipient, SignerProvider, ChannelSigner};
+use crate::chain::keysinterface::{EntropySource, KeysManager, NodeSigner, Recipient, SignerProvider, ChannelSigner, WriteableEcdsaChannelSigner};
use crate::util::config::{UserConfig, ChannelConfig};
use crate::util::events::{Event, EventHandler, EventsProvider, MessageSendEvent, MessageSendEventsProvider, ClosureReason, HTLCDestination};
use crate::util::events;
use crate::util::wakers::{Future, Notifier};
use crate::util::scid_utils::fake_scid;
+use crate::util::string::UntrustedString;
use crate::util::ser::{BigSize, FixedLengthReader, Readable, ReadableArgs, MaybeReadable, Writeable, Writer, VecWriter};
use crate::util::logger::{Level, Logger};
use crate::util::errors::APIError;
}
/// A payment identifier used to uniquely identify a payment to LDK.
-/// (C-not exported) as we just use [u8; 32] directly
+///
+/// This is not exported to bindings users as we just use [u8; 32] directly
#[derive(Hash, Copy, Clone, PartialEq, Eq, Debug)]
pub struct PaymentId(pub [u8; 32]);
}
/// An identifier used to uniquely identify an intercepted HTLC to LDK.
-/// (C-not exported) as we just use [u8; 32] directly
+///
+/// This is not exported to bindings users as we just use [u8; 32] directly
#[derive(Hash, Copy, Clone, PartialEq, Eq, Debug)]
pub struct InterceptId(pub [u8; 32]);
first_hop_htlc_msat: u64,
payment_id: PaymentId,
payment_secret: Option<PaymentSecret>,
- /// Note that this is now "deprecated" - we write it for forwards (and read it for
- /// backwards) compatibility reasons, but prefer to use the data in the
- /// [`super::outbound_payment`] module, which stores per-payment data once instead of in
- /// each HTLC.
- payment_params: Option<PaymentParameters>,
},
}
#[allow(clippy::derive_hash_xor_eq)] // Our Hash is faithful to the data, we just don't have SecretKey::hash
0u8.hash(hasher);
prev_hop_data.hash(hasher);
},
- HTLCSource::OutboundRoute { path, session_priv, payment_id, payment_secret, first_hop_htlc_msat, payment_params } => {
+ HTLCSource::OutboundRoute { path, session_priv, payment_id, payment_secret, first_hop_htlc_msat } => {
1u8.hash(hasher);
path.hash(hasher);
session_priv[..].hash(hasher);
payment_id.hash(hasher);
payment_secret.hash(hasher);
first_hop_htlc_msat.hash(hasher);
- payment_params.hash(hasher);
},
}
}
first_hop_htlc_msat: 0,
payment_id: PaymentId([2; 32]),
payment_secret: None,
- payment_params: None,
}
}
}
min_value_msat: Option<u64>,
}
-/// SimpleArcChannelManager is useful when you need a ChannelManager with a static lifetime, e.g.
-/// when you're using lightning-net-tokio (since tokio::spawn requires parameters with static
+/// [`SimpleArcChannelManager`] is useful when you need a [`ChannelManager`] with a static lifetime, e.g.
+/// when you're using `lightning-net-tokio` (since `tokio::spawn` requires parameters with static
/// lifetimes). Other times you can afford a reference, which is more efficient, in which case
-/// SimpleRefChannelManager is the more appropriate type. Defining these type aliases prevents
-/// issues such as overly long function definitions. Note that the ChannelManager can take any type
-/// that implements KeysInterface or Router for its keys manager and router, respectively, but this
-/// type alias chooses the concrete types of KeysManager and DefaultRouter.
+/// [`SimpleRefChannelManager`] is the more appropriate type. Defining these type aliases prevents
+/// issues such as overly long function definitions. Note that the `ChannelManager` can take any type
+/// that implements [`NodeSigner`], [`EntropySource`], and [`SignerProvider`] for its keys manager,
+/// or, respectively, [`Router`] for its router, but this type alias chooses the concrete types
+/// of [`KeysManager`] and [`DefaultRouter`].
///
-/// (C-not exported) as Arcs don't make sense in bindings
+/// This is not exported to bindings users as Arcs don't make sense in bindings
pub type SimpleArcChannelManager<M, T, F, L> = ChannelManager<
Arc<M>,
Arc<T>,
Arc<L>
>;
-/// SimpleRefChannelManager is a type alias for a ChannelManager reference, and is the reference
-/// counterpart to the SimpleArcChannelManager type alias. Use this type by default when you don't
+/// [`SimpleRefChannelManager`] is a type alias for a ChannelManager reference, and is the reference
+/// counterpart to the [`SimpleArcChannelManager`] type alias. Use this type by default when you don't
/// need a ChannelManager with a static lifetime. You'll need a static lifetime in cases such as
-/// usage of lightning-net-tokio (since tokio::spawn requires parameters with static lifetimes).
+/// usage of lightning-net-tokio (since `tokio::spawn` requires parameters with static lifetimes).
/// But if this is not necessary, using a reference is more efficient. Defining these type aliases
/// issues such as overly long function definitions. Note that the ChannelManager can take any type
-/// that implements KeysInterface or Router for its keys manager and router, respectively, but this
-/// type alias chooses the concrete types of KeysManager and DefaultRouter.
+/// that implements [`NodeSigner`], [`EntropySource`], and [`SignerProvider`] for its keys manager,
+/// or, respectively, [`Router`] for its router, but this type alias chooses the concrete types
+/// of [`KeysManager`] and [`DefaultRouter`].
///
-/// (C-not exported) as Arcs don't make sense in bindings
+/// This is not exported to bindings users as Arcs don't make sense in bindings
pub type SimpleRefChannelManager<'a, 'b, 'c, 'd, 'e, 'f, 'g, 'h, M, T, F, L> = ChannelManager<&'a M, &'b T, &'c KeysManager, &'c KeysManager, &'c KeysManager, &'d F, &'e DefaultRouter<&'f NetworkGraph<&'g L>, &'g L, &'h Mutex<ProbabilisticScorer<&'f NetworkGraph<&'g L>, &'g L>>>, &'g L>;
/// Manager which keeps track of a number of channels and sends messages to the appropriate
/// channel, also tracking HTLC preimages and forwarding onion packets appropriately.
///
-/// Implements ChannelMessageHandler, handling the multi-channel parts and passing things through
+/// Implements [`ChannelMessageHandler`], handling the multi-channel parts and passing things through
/// to individual Channels.
///
-/// Implements Writeable to write out all channel state to disk. Implies peer_disconnected() for
+/// Implements [`Writeable`] to write out all channel state to disk. Implies [`peer_disconnected`] for
/// all peers during write/read (though does not modify this instance, only the instance being
-/// serialized). This will result in any channels which have not yet exchanged funding_created (ie
-/// called funding_transaction_generated for outbound channels).
+/// serialized). This will result in any channels which have not yet exchanged [`funding_created`] (i.e.,
+/// called [`funding_transaction_generated`] for outbound channels) being closed.
///
-/// Note that you can be a bit lazier about writing out ChannelManager than you can be with
-/// ChannelMonitors. With ChannelMonitors you MUST write each monitor update out to disk before
-/// returning from chain::Watch::watch_/update_channel, with ChannelManagers, writing updates
-/// happens out-of-band (and will prevent any other ChannelManager operations from occurring during
+/// Note that you can be a bit lazier about writing out `ChannelManager` than you can be with
+/// [`ChannelMonitor`]. With [`ChannelMonitor`] you MUST write each monitor update out to disk before
+/// returning from [`chain::Watch::watch_channel`]/[`update_channel`], with ChannelManagers, writing updates
+/// happens out-of-band (and will prevent any other `ChannelManager` operations from occurring during
/// the serialization process). If the deserialized version is out-of-date compared to the
-/// ChannelMonitors passed by reference to read(), those channels will be force-closed based on the
-/// ChannelMonitor state and no funds will be lost (mod on-chain transaction fees).
+/// [`ChannelMonitor`] passed by reference to [`read`], those channels will be force-closed based on the
+/// `ChannelMonitor` state and no funds will be lost (mod on-chain transaction fees).
///
-/// Note that the deserializer is only implemented for (BlockHash, ChannelManager), which
-/// tells you the last block hash which was block_connect()ed. You MUST rescan any blocks along
-/// the "reorg path" (ie call block_disconnected() until you get to a common block and then call
-/// block_connected() to step towards your best block) upon deserialization before using the
-/// object!
+/// Note that the deserializer is only implemented for `(`[`BlockHash`]`, `[`ChannelManager`]`)`, which
+/// tells you the last block hash which was connected. You should get the best block tip before using the manager.
+/// See [`chain::Listen`] and [`chain::Confirm`] for more details.
///
-/// Note that ChannelManager is responsible for tracking liveness of its channels and generating
-/// ChannelUpdate messages informing peers that the channel is temporarily disabled. To avoid
+/// Note that `ChannelManager` is responsible for tracking liveness of its channels and generating
+/// [`ChannelUpdate`] messages informing peers that the channel is temporarily disabled. To avoid
/// spam due to quick disconnection/reconnection, updates are not sent until the channel has been
/// offline for a full minute. In order to track this, you must call
-/// timer_tick_occurred roughly once per minute, though it doesn't have to be perfect.
+/// [`timer_tick_occurred`] roughly once per minute, though it doesn't have to be perfect.
///
-/// To avoid trivial DoS issues, ChannelManager limits the number of inbound connections and
+/// To avoid trivial DoS issues, `ChannelManager` limits the number of inbound connections and
/// inbound channels without confirmed funding transactions. This may result in nodes which we do
/// not have a channel with being unable to connect to us or open new channels with us if we have
/// many peers with unfunded channels.
/// exempted from the count of unfunded channels. Similarly, outbound channels and connections are
/// never limited. Please ensure you limit the count of such channels yourself.
///
-/// Rather than using a plain ChannelManager, it is preferable to use either a SimpleArcChannelManager
-/// a SimpleRefChannelManager, for conciseness. See their documentation for more details, but
-/// essentially you should default to using a SimpleRefChannelManager, and use a
-/// SimpleArcChannelManager when you require a ChannelManager with a static lifetime, such as when
+/// Rather than using a plain `ChannelManager`, it is preferable to use either a [`SimpleArcChannelManager`]
+/// a [`SimpleRefChannelManager`], for conciseness. See their documentation for more details, but
+/// essentially you should default to using a [`SimpleRefChannelManager`], and use a
+/// [`SimpleArcChannelManager`] when you require a `ChannelManager` with a static lifetime, such as when
/// you're using lightning-net-tokio.
+///
+/// [`peer_disconnected`]: msgs::ChannelMessageHandler::peer_disconnected
+/// [`funding_created`]: msgs::FundingCreated
+/// [`funding_transaction_generated`]: Self::funding_transaction_generated
+/// [`BlockHash`]: bitcoin::hash_types::BlockHash
+/// [`update_channel`]: chain::Watch::update_channel
+/// [`ChannelUpdate`]: msgs::ChannelUpdate
+/// [`timer_tick_occurred`]: Self::timer_tick_occurred
+/// [`read`]: ReadableArgs::read
//
// Lock order:
// The tree structure below illustrates the lock order requirements for the different locks of the
pub outbound_htlc_maximum_msat: Option<u64>,
}
-/// Details of a channel, as returned by ChannelManager::list_channels and ChannelManager::list_usable_channels
+/// Details of a channel, as returned by [`ChannelManager::list_channels`] and [`ChannelManager::list_usable_channels`]
#[derive(Clone, Debug, PartialEq)]
pub struct ChannelDetails {
/// The channel's ID (prior to funding transaction generation, this is a random 32 bytes,
/// inbound. This may be zero for inbound channels serialized with LDK versions prior to
/// 0.0.113.
pub user_channel_id: u128,
+ /// The currently negotiated fee rate denominated in satoshi per 1000 weight units,
+ /// which is applied to commitment and HTLC transactions.
+ ///
+ /// This value will be `None` for objects serialized with LDK versions prior to 0.0.115.
+ pub feerate_sat_per_1000_weight: Option<u32>,
/// Our total balance. This is the amount we would get if we close the channel.
/// This value is not exact. Due to various in-flight changes and feerate changes, exactly this
/// amount is not likely to be recoverable on close.
pub fn get_outbound_payment_scid(&self) -> Option<u64> {
self.short_channel_id.or(self.outbound_scid_alias)
}
+
+ fn from_channel<Signer: WriteableEcdsaChannelSigner>(channel: &Channel<Signer>,
+ best_block_height: u32, latest_features: InitFeatures) -> Self {
+
+ let balance = channel.get_available_balances();
+ let (to_remote_reserve_satoshis, to_self_reserve_satoshis) =
+ channel.get_holder_counterparty_selected_channel_reserve_satoshis();
+ ChannelDetails {
+ channel_id: channel.channel_id(),
+ counterparty: ChannelCounterparty {
+ node_id: channel.get_counterparty_node_id(),
+ features: latest_features,
+ 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(),
+ feerate_sat_per_1000_weight: Some(channel.get_feerate_sat_per_1000_weight()),
+ 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()),
+ }
+ }
}
/// Used by [`ChannelManager::list_recent_payments`] to express the status of recent payments.
R::Target: Router,
L::Target: Logger,
{
- /// Constructs a new ChannelManager to hold several channels and route between them.
+ /// Constructs a new `ChannelManager` to hold several channels and route between them.
///
/// This is the main "logic hub" for all channel-related actions, and implements
- /// ChannelMessageHandler.
+ /// [`ChannelMessageHandler`].
///
/// Non-proportional fees are fixed according to our risk using the provided fee estimator.
///
- /// Users need to notify the new ChannelManager when a new block is connected or
- /// disconnected using its `block_connected` and `block_disconnected` methods, starting
- /// from after `params.latest_hash`.
+ /// Users need to notify the new `ChannelManager` when a new block is connected or
+ /// disconnected using its [`block_connected`] and [`block_disconnected`] methods, starting
+ /// from after [`params.best_block.block_hash`]. See [`chain::Listen`] and [`chain::Confirm`] for
+ /// more details.
+ ///
+ /// [`block_connected`]: chain::Listen::block_connected
+ /// [`block_disconnected`]: chain::Listen::block_disconnected
+ /// [`params.best_block.block_hash`]: chain::BestBlock::block_hash
pub fn new(fee_est: F, chain_monitor: M, tx_broadcaster: T, router: R, logger: L, entropy_source: ES, node_signer: NS, signer_provider: SP, config: UserConfig, params: ChainParameters) -> Self {
let mut secp_ctx = Secp256k1::new();
secp_ctx.seeded_randomize(&entropy_source.get_secure_random_bytes());
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: peer_state.latest_features.clone(),
- 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()),
- });
+ for (_channel_id, channel) in peer_state.channel_by_id.iter().filter(f) {
+ let details = ChannelDetails::from_channel(channel, best_block_height,
+ peer_state.latest_features.clone());
+ res.push(details);
}
}
}
res
}
- /// Gets the list of open channels, in random order. See ChannelDetail field documentation for
+ /// Gets the list of open channels, in random order. See [`ChannelDetails`] field documentation for
/// more information.
pub fn list_channels(&self) -> Vec<ChannelDetails> {
self.list_channels_with_filter(|_| true)
self.list_channels_with_filter(|&(_, ref channel)| channel.is_live())
}
+ /// Gets the list of channels we have with a given counterparty, in random order.
+ pub fn list_channels_with_counterparty(&self, counterparty_node_id: &PublicKey) -> Vec<ChannelDetails> {
+ let best_block_height = self.best_block.read().unwrap().height();
+ 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;
+ let features = &peer_state.latest_features;
+ return peer_state.channel_by_id
+ .iter()
+ .map(|(_, channel)|
+ ChannelDetails::from_channel(channel, best_block_height, features.clone()))
+ .collect();
+ }
+ vec![]
+ }
+
/// Returns in an undefined order recent payments that -- if not fulfilled -- have yet to find a
/// successful path, or have unresolved HTLCs.
///
/// would appear on a force-closure transaction, whichever is lower. We will allow our
/// counterparty to pay as much fee as they'd like, however.
///
- /// May generate a SendShutdown message event on success, which should be relayed.
+ /// May generate a [`SendShutdown`] message event on success, which should be relayed.
///
/// [`ChannelConfig::force_close_avoidance_max_fee_satoshis`]: crate::util::config::ChannelConfig::force_close_avoidance_max_fee_satoshis
/// [`Background`]: crate::chain::chaininterface::ConfirmationTarget::Background
/// [`Normal`]: crate::chain::chaininterface::ConfirmationTarget::Normal
+ /// [`SendShutdown`]: crate::util::events::MessageSendEvent::SendShutdown
pub fn close_channel(&self, channel_id: &[u8; 32], counterparty_node_id: &PublicKey) -> Result<(), APIError> {
self.close_channel_internal(channel_id, counterparty_node_id, None)
}
/// transaction feerate below `target_feerate_sat_per_1000_weight` (or the feerate which
/// will appear on a force-closure transaction, whichever is lower).
///
- /// May generate a SendShutdown message event on success, which should be relayed.
+ /// May generate a [`SendShutdown`] message event on success, which should be relayed.
///
/// [`ChannelConfig::force_close_avoidance_max_fee_satoshis`]: crate::util::config::ChannelConfig::force_close_avoidance_max_fee_satoshis
/// [`Background`]: crate::chain::chaininterface::ConfirmationTarget::Background
/// [`Normal`]: crate::chain::chaininterface::ConfirmationTarget::Normal
+ /// [`SendShutdown`]: crate::util::events::MessageSendEvent::SendShutdown
pub fn close_channel_with_target_feerate(&self, channel_id: &[u8; 32], counterparty_node_id: &PublicKey, target_feerate_sats_per_1000_weight: u32) -> Result<(), APIError> {
self.close_channel_internal(channel_id, counterparty_node_id, Some(target_feerate_sats_per_1000_weight))
}
let peer_state = &mut *peer_state_lock;
if let hash_map::Entry::Occupied(chan) = peer_state.channel_by_id.entry(channel_id.clone()) {
if let Some(peer_msg) = peer_msg {
- self.issue_channel_close_events(chan.get(),ClosureReason::CounterpartyForceClosed { peer_msg: peer_msg.to_string() });
+ self.issue_channel_close_events(chan.get(),ClosureReason::CounterpartyForceClosed { peer_msg: UntrustedString(peer_msg.to_string()) });
} else {
self.issue_channel_close_events(chan.get(),ClosureReason::HolderForceClosed);
}
pending_forward_info
}
- /// Gets the current channel_update for the given channel. This first checks if the channel is
+ /// Gets the current [`channel_update`] for the given channel. This first checks if the channel is
/// public, and thus should be called whenever the result is going to be passed out in a
/// [`MessageSendEvent::BroadcastChannelUpdate`] event.
///
- /// Note that in `internal_closing_signed`, this function is called without the `peer_state`
+ /// Note that in [`internal_closing_signed`], this function is called without the `peer_state`
/// corresponding to the channel's counterparty locked, as the channel been removed from the
/// storage and the `peer_state` lock has been dropped.
+ ///
+ /// [`channel_update`]: msgs::ChannelUpdate
+ /// [`internal_closing_signed`]: Self::internal_closing_signed
fn get_channel_update_for_broadcast(&self, chan: &Channel<<SP::Target as SignerProvider>::Signer>) -> Result<msgs::ChannelUpdate, LightningError> {
if !chan.should_announce() {
return Err(LightningError {
self.get_channel_update_for_unicast(chan)
}
- /// Gets the current channel_update for the given channel. This does not check if the channel
- /// is public (only returning an Err if the channel does not yet have an assigned short_id),
+ /// Gets the current [`channel_update`] for the given channel. This does not check if the channel
+ /// is public (only returning an `Err` if the channel does not yet have an assigned SCID),
/// 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.
///
- /// Note that through `internal_closing_signed`, this function is called without the
+ /// Note that through [`internal_closing_signed`], this function is called without the
/// `peer_state` corresponding to the channel's counterparty locked, as the channel been
/// removed from the storage and the `peer_state` lock has been dropped.
+ ///
+ /// [`channel_update`]: msgs::ChannelUpdate
+ /// [`internal_closing_signed`]: Self::internal_closing_signed
fn get_channel_update_for_unicast(&self, chan: &Channel<<SP::Target as SignerProvider>::Signer>) -> Result<msgs::ChannelUpdate, LightningError> {
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()) {
}
#[cfg(test)]
- pub(crate) fn test_send_payment_along_path(&self, path: &Vec<RouteHop>, payment_
params: &Option<PaymentParameters>, payment_hash: &PaymentHash, payment_secret: &Option<PaymentSecret>, total_value: u64, cur_height: u32, payment_id: PaymentId, keysend_preimage: &Option<PaymentPreimage>, session_priv_bytes: [u8; 32]) -> Result<(), APIError> {
+ pub(crate) fn test_send_payment_along_path(&self, path: &Vec<RouteHop>, payment_hash: &PaymentHash, payment_secret: &Option<PaymentSecret>, total_value: u64, cur_height: u32, payment_id: PaymentId, keysend_preimage: &Option<PaymentPreimage>, session_priv_bytes: [u8; 32]) -> Result<(), APIError> {
let _lck = self.total_consistency_lock.read().unwrap();
- self.send_payment_along_path(path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv_bytes)
+ self.send_payment_along_path(path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv_bytes)
}
- fn send_payment_along_path(&self, path: &Vec<RouteHop>, payment_
params: &Option<PaymentParameters>, payment_hash: &PaymentHash, payment_secret: &Option<PaymentSecret>, total_value: u64, cur_height: u32, payment_id: PaymentId, keysend_preimage: &Option<PaymentPreimage>, session_priv_bytes: [u8; 32]) -> Result<(), APIError> {
+ fn send_payment_along_path(&self, path: &Vec<RouteHop>, payment_hash: &PaymentHash, payment_secret: &Option<PaymentSecret>, total_value: u64, cur_height: u32, payment_id: PaymentId, keysend_preimage: &Option<PaymentPreimage>, session_priv_bytes: [u8; 32]) -> Result<(), APIError> {
// The top-level caller should hold the total_consistency_lock read lock.
debug_assert!(self.total_consistency_lock.try_write().is_err());
first_hop_htlc_msat: htlc_msat,
payment_id,
payment_secret: payment_secret.clone(),
- payment_params: payment_params.clone(),
}, onion_packet, &self.logger);
match break_chan_entry!(self, send_res, chan) {
Some(monitor_update) => {
/// Value parameters are provided via the last hop in route, see documentation for [`RouteHop`]
/// fields for more info.
///
- /// May generate SendHTLCs message(s) event on success, which should be relayed (e.g. via
+ /// May generate [`UpdateHTLCs`] message(s) event on success, which should be relayed (e.g. via
/// [`PeerManager::process_events`]).
///
/// # Avoiding Duplicate Payments
///
/// # Possible Error States on [`PaymentSendFailure`]
///
- /// Each path may have a different return value, and PaymentSendValue may return a Vec with
+ /// Each path may have a different return value, and [`PaymentSendFailure`] may return a `Vec` with
/// each entry matching the corresponding-index entry in the route paths, see
/// [`PaymentSendFailure`] for more info.
///
/// * [`APIError::MonitorUpdateInProgress`] if a new monitor update failure prevented sending the
/// relevant updates.
///
- /// Note that depending on the type of the PaymentSendFailure the HTLC may have been
+ /// Note that depending on the type of the [`PaymentSendFailure`] the HTLC may have been
/// irrevocably committed to on our end. In such a case, do NOT retry the payment with a
/// different route unless you intend to pay twice!
///
///
/// [`Event::PaymentSent`]: events::Event::PaymentSent
/// [`Event::PaymentFailed`]: events::Event::PaymentFailed
+ /// [`UpdateHTLCs`]: events::MessageSendEvent::UpdateHTLCs
/// [`PeerManager::process_events`]: crate::ln::peer_handler::PeerManager::process_events
/// [`ChannelMonitorUpdateStatus::InProgress`]: crate::chain::ChannelMonitorUpdateStatus::InProgress
pub fn send_payment(&self, route: &Route, payment_hash: PaymentHash, payment_secret: &Option<PaymentSecret>, payment_id: PaymentId) -> Result<(), PaymentSendFailure> {
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier);
self.pending_outbound_payments
.send_payment_with_route(route, payment_hash, payment_secret, payment_id, &self.entropy_source, &self.node_signer, best_block_height,
- |path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
- self.send_payment_along_path(path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
+ |path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
+ self.send_payment_along_path(path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
}
/// Similar to [`ChannelManager::send_payment`], but will automatically find a route based on
&self.router, self.list_usable_channels(), || self.compute_inflight_htlcs(),
&self.entropy_source, &self.node_signer, best_block_height, &self.logger,
&self.pending_events,
- |path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
- self.send_payment_along_path(path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
+ |path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
+ self.send_payment_along_path(path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
}
#[cfg(test)]
let best_block_height = self.best_block.read().unwrap().height();
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier);
self.pending_outbound_payments.test_send_payment_internal(route, payment_hash, payment_secret, keysend_preimage, payment_id, recv_value_msat, onion_session_privs, &self.node_signer, best_block_height,
- |path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
- self.send_payment_along_path(path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
+ |path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
+ self.send_payment_along_path(path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
}
#[cfg(test)]
self.pending_outbound_payments.send_spontaneous_payment_with_route(
route, payment_preimage, payment_id, &self.entropy_source, &self.node_signer,
best_block_height,
- |path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
- self.send_payment_along_path(path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
+ |path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
+ self.send_payment_along_path(path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
}
/// Similar to [`ChannelManager::send_spontaneous_payment`], but will automatically find a route
retry_strategy, route_params, &self.router, self.list_usable_channels(),
|| self.compute_inflight_htlcs(), &self.entropy_source, &self.node_signer, best_block_height,
&self.logger, &self.pending_events,
- |path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
- self.send_payment_along_path(path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
+ |path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
+ self.send_payment_along_path(path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
}
/// Send a payment that is probing the given route for liquidity. We calculate the
let best_block_height = self.best_block.read().unwrap().height();
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(&self.total_consistency_lock, &self.persistence_notifier);
self.pending_outbound_payments.send_probe(hops, self.probing_cookie_secret, &self.entropy_source, &self.node_signer, best_block_height,
- |path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
- self.send_payment_along_path(path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
+ |path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
+ self.send_payment_along_path(path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv))
}
/// Returns whether a payment with the given [`PaymentHash`] and [`PaymentId`] is, in fact, a
self.pending_outbound_payments.check_retry_payments(&self.router, || self.list_usable_channels(),
|| self.compute_inflight_htlcs(), &self.entropy_source, &self.node_signer, best_block_height,
&self.pending_events, &self.logger,
- |path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
- self.send_payment_along_path(path, payment_params, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv));
+ |path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv|
+ self.send_payment_along_path(path, payment_hash, payment_secret, total_value, cur_height, payment_id, keysend_preimage, session_priv));
for (htlc_source, payment_hash, failure_reason, destination) in failed_forwards.drain(..) {
self.fail_htlc_backwards_internal(&htlc_source, &payment_hash, &failure_reason, destination);
fn update_channel_fee(&self, chan_id: &[u8; 32], chan: &mut Channel<<SP::Target as SignerProvider>::Signer>, new_feerate: u32) -> NotifyOption {
if !chan.is_outbound() { return NotifyOption::SkipPersist; }
// If the feerate has decreased by less than half, don't bother
- if new_feerate <= chan.get_feerate() && new_feerate * 2 > chan.get_feerate() {
+ if new_feerate <= chan.get_feerate_sat_per_1000_weight() && new_feerate * 2 > chan.get_feerate_sat_per_1000_weight() {
log_trace!(self.logger, "Channel {} does not qualify for a feerate change from {} to {}.",
- log_bytes!(chan_id[..]), chan.get_feerate(), new_feerate);
+ log_bytes!(chan_id[..]), chan.get_feerate_sat_per_1000_weight(), new_feerate);
return NotifyOption::SkipPersist;
}
if !chan.is_live() {
log_trace!(self.logger, "Channel {} does not qualify for a feerate change from {} to {} as it cannot currently be updated (probably the peer is disconnected).",
- log_bytes!(chan_id[..]), chan.get_feerate(), new_feerate);
+ log_bytes!(chan_id[..]), chan.get_feerate_sat_per_1000_weight(), new_feerate);
return NotifyOption::SkipPersist;
}
log_trace!(self.logger, "Channel {} qualifies for a feerate change from {} to {}.",
- log_bytes!(chan_id[..]), chan.get_feerate(), new_feerate);
+ log_bytes!(chan_id[..]), chan.get_feerate_sat_per_1000_weight(), new_feerate);
chan.queue_update_fee(new_feerate, &self.logger);
NotifyOption::DoPersist
///
/// This currently includes:
/// * Increasing or decreasing the on-chain feerate estimates for our outbound channels,
- /// * Broadcasting `ChannelUpdate` messages if we've been disconnected from our peer for more
+ /// * Broadcasting [`ChannelUpdate`] messages if we've been disconnected from our peer for more
/// than a minute, informing the network that they should no longer attempt to route over
/// the channel.
- /// * Expiring a channel's previous `ChannelConfig` if necessary to only allow forwarding HTLCs
- /// with the current `ChannelConfig`.
+ /// * Expiring a channel's previous [`ChannelConfig`] if necessary to only allow forwarding HTLCs
+ /// with the current [`ChannelConfig`].
/// * Removing peers which have disconnected but and no longer have any channels.
///
- /// Note that this may cause reentrancy through `chain::Watch::update_channel` calls or feerate
+ /// Note that this may cause reentrancy through [`chain::Watch::update_channel`] calls or feerate
/// estimate fetches.
+ ///
+ /// [`ChannelUpdate`]: msgs::ChannelUpdate
+ /// [`ChannelConfig`]: crate::util::config::ChannelConfig
pub fn timer_tick_occurred(&self) {
PersistenceNotifierGuard::optionally_notify(&self.total_consistency_lock, &self.persistence_notifier, || {
let mut should_persist = NotifyOption::SkipPersist;
// from block_connected which may run during initialization prior to the chain_monitor
// being fully configured. See the docs for `ChannelManagerReadArgs` for more.
match source {
- HTLCSource::OutboundRoute { ref path, ref session_priv, ref payment_id, ref payment_params, .. } => {
+ HTLCSource::OutboundRoute { ref path, ref session_priv, ref payment_id, .. } => {
if self.pending_outbound_payments.fail_htlc(source, payment_hash, onion_error, path,
- session_priv, payment_id, payment_params, self.probing_cookie_secret, &self.secp_ctx,
+ session_priv, payment_id, self.probing_cookie_secret, &self.secp_ctx,
&self.pending_events, &self.logger)
{ self.push_pending_forwards_ev(); }
},
Ok(())
}
- /// Process pending events from the `chain::Watch`, returning whether any events were processed.
+ /// Process pending events from the [`chain::Watch`], returning whether any events were processed.
fn process_pending_monitor_events(&self) -> bool {
debug_assert!(self.total_consistency_lock.try_write().is_err()); // Caller holds read lock
/// [`ChannelManager`].
pub fn provided_init_features(_config: &UserConfig) -> InitFeatures {
// Note that if new features are added here which other peers may (eventually) require, we
- // should also add the corresponding (optional) bit to the ChannelMessageHandler impl for
- // ErroringMessageHandler.
+ // should also add the corresponding (optional) bit to the [`ChannelMessageHandler`] impl for
+ // [`ErroringMessageHandler`].
let mut features = InitFeatures::empty();
features.set_data_loss_protect_optional();
features.set_upfront_shutdown_script_optional();
(33, self.inbound_htlc_minimum_msat, option),
(35, self.inbound_htlc_maximum_msat, option),
(37, user_channel_id_high_opt, option),
+ (39, self.feerate_sat_per_1000_weight, option),
});
Ok(())
}
(33, inbound_htlc_minimum_msat, option),
(35, inbound_htlc_maximum_msat, option),
(37, user_channel_id_high_opt, option),
+ (39, feerate_sat_per_1000_weight, option),
});
// `user_channel_id` used to be a single u64 value. In order to remain backwards compatible with
is_public: is_public.0.unwrap(),
inbound_htlc_minimum_msat,
inbound_htlc_maximum_msat,
+ feerate_sat_per_1000_weight,
})
}
}
path,
payment_id: payment_id.unwrap(),
payment_secret,
- payment_params,
})
}
1 => Ok(HTLCSource::PreviousHopData(Readable::read(reader)?)),
impl Writeable for HTLCSource {
fn write<W: Writer>(&self, writer: &mut W) -> Result<(), crate::io::Error> {
match self {
- HTLCSource::OutboundRoute { ref session_priv, ref first_hop_htlc_msat, ref path, payment_id, payment_secret, payment_params } => {
+ HTLCSource::OutboundRoute { ref session_priv, ref first_hop_htlc_msat, ref path, payment_id, payment_secret } => {
0u8.write(writer)?;
let payment_id_opt = Some(payment_id);
write_tlv_fields!(writer, {
(2, first_hop_htlc_msat, required),
(3, payment_secret, option),
(4, *path, vec_type),
- (5, payment_params, option),
+ (5, None::<PaymentParameters>, option), // payment_params in LDK versions prior to 0.0.115
});
}
HTLCSource::PreviousHopData(ref field) => {
/// In such cases the latest local transactions will be sent to the tx_broadcaster included in
/// this struct.
///
- /// (C-not exported) because we have no HashMap bindings
+ /// This is not exported to bindings users because we have no HashMap bindings
pub channel_monitors: HashMap<OutPoint, &'a mut ChannelMonitor<<SP::Target as SignerProvider>::Signer>>,
}
// to connect messages with new values
chan.0.contents.fee_base_msat *= 2;
chan.1.contents.fee_base_msat *= 2;
- let node_a_chan_info = nodes[0].node.list_channels()[0].clone();
- let node_b_chan_info = nodes[1].node.list_channels()[0].clone();
+ let node_a_chan_info = nodes[0].node.list_channels_with_counterparty(
+ &nodes[1].node.get_our_node_id()).pop().unwrap();
+ let node_b_chan_info = nodes[1].node.list_channels_with_counterparty(
+ &nodes[0].node.get_our_node_id()).pop().unwrap();
// The first two nodes (which opened a channel) should now require fresh persistence
assert!(nodes[0].node.await_persistable_update_timeout(Duration::from_millis(1)));
// indicates there are more HTLCs coming.
let cur_height = CHAN_CONFIRM_DEPTH + 1; // route_payment calls send_payment, which adds 1 to the current height. So we do the same here to match.
let session_privs = nodes[0].node.test_add_new_pending_payment(our_payment_hash, Some(payment_secret), payment_id, &mpp_route).unwrap();
- nodes[0].node.test_send_payment_along_path(&mpp_route.paths[0], &route.payment_params, &our_payment_hash, &Some(payment_secret), 200_000, cur_height, payment_id, &None, session_privs[0]).unwrap();
+ nodes[0].node.test_send_payment_along_path(&mpp_route.paths[0], &our_payment_hash, &Some(payment_secret), 200_000, cur_height, payment_id, &None, session_privs[0]).unwrap();
check_added_monitors!(nodes[0], 1);
let mut events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
expect_payment_failed!(nodes[0], our_payment_hash, true);
// Send the second half of the original MPP payment.
- nodes[0].node.test_send_payment_along_path(&mpp_route.paths[1], &route.payment_params, &our_payment_hash, &Some(payment_secret), 200_000, cur_height, payment_id, &None, session_privs[1]).unwrap();
+ nodes[0].node.test_send_payment_along_path(&mpp_route.paths[1], &our_payment_hash, &Some(payment_secret), 200_000, cur_height, payment_id, &None, session_privs[1]).unwrap();
check_added_monitors!(nodes[0], 1);
let mut events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
assert!(updates.update_fee.is_none());
nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
- nodes[1].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Payment preimage didn't match payment hash".to_string(), 1);
+ nodes[1].logger.assert_log_contains("lightning::ln::channelmanager", "Payment preimage didn't match payment hash", 1);
}
#[test]
assert!(updates.update_fee.is_none());
nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
- nodes[1].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "We don't support MPP keysend payments".to_string(), 1);
+ nodes[1].logger.assert_log_contains("lightning::ln::channelmanager", "We don't support MPP keysend payments", 1);
}
#[test]
match nodes[0].node.send_payment(&route, payment_hash, &None, PaymentId(payment_hash.0)).unwrap_err() {
PaymentSendFailure::ParameterError(APIError::APIMisuseError { ref err }) => {
- assert!(regex::Regex::new(r"Payment secret is required for multi-path payments").unwrap().is_match(err)) },
+ assert!(regex::Regex::new(r"Payment secret is required for multi-path payments").unwrap().is_match(err))
+ },
_ => panic!("unexpected error")
}
}
match inbound_payment::verify(bad_payment_hash, &payment_data, nodes[0].node.highest_seen_timestamp.load(Ordering::Acquire) as u64, &nodes[0].node.inbound_payment_key, &nodes[0].logger) {
Ok(_) => panic!("Unexpected ok"),
Err(()) => {
- nodes[0].logger.assert_log_contains("lightning::ln::inbound_payment".to_string(), "Failing HTLC with user-generated payment_hash".to_string(), 1);
+ nodes[0].logger.assert_log_contains("lightning::ln::inbound_payment", "Failing HTLC with user-generated payment_hash", 1);
}
}
projects / rust-lightning / blobdiff