use bitcoin::secp256k1::Secp256k1;
use bitcoin::{secp256k1, Sequence};
-use crate::blinded_path::BlindedPath;
+use crate::blinded_path::{BlindedPath, NodeIdLookUp};
use crate::blinded_path::payment::{PaymentConstraints, ReceiveTlvs};
use crate::chain;
use crate::chain::{Confirm, ChannelMonitorUpdateStatus, Watch, BestBlock};
use crate::chain::chaininterface::{BroadcasterInterface, ConfirmationTarget, FeeEstimator, LowerBoundedFeeEstimator};
-use crate::chain::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, ChannelMonitorUpdateStep, HTLC_FAIL_BACK_BUFFER, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY, MonitorEvent, CLOSED_CHANNEL_UPDATE_ID};
+use crate::chain::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, WithChannelMonitor, ChannelMonitorUpdateStep, HTLC_FAIL_BACK_BUFFER, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY, MonitorEvent, CLOSED_CHANNEL_UPDATE_ID};
use crate::chain::transaction::{OutPoint, TransactionData};
use crate::events;
use crate::events::{Event, EventHandler, EventsProvider, MessageSendEvent, MessageSendEventsProvider, ClosureReason, HTLCDestination, PaymentFailureReason};
// Since this struct is returned in `list_channels` methods, expose it here in case users want to
// construct one themselves.
use crate::ln::{inbound_payment, ChannelId, PaymentHash, PaymentPreimage, PaymentSecret};
-use crate::ln::channel::{Channel, ChannelPhase, ChannelContext, ChannelError, ChannelUpdateStatus, ShutdownResult, UnfundedChannelContext, UpdateFulfillCommitFetch, OutboundV1Channel, InboundV1Channel};
+use crate::ln::channel::{self, Channel, ChannelPhase, ChannelContext, ChannelError, ChannelUpdateStatus, ShutdownResult, UnfundedChannelContext, UpdateFulfillCommitFetch, OutboundV1Channel, InboundV1Channel, WithChannelContext};
+pub use crate::ln::channel::{InboundHTLCDetails, InboundHTLCStateDetails, OutboundHTLCDetails, OutboundHTLCStateDetails};
use crate::ln::features::{Bolt12InvoiceFeatures, ChannelFeatures, ChannelTypeFeatures, InitFeatures, NodeFeatures};
#[cfg(any(feature = "_test_utils", test))]
use crate::ln::features::Bolt11InvoiceFeatures;
-use crate::routing::gossip::NetworkGraph;
-use crate::routing::router::{BlindedTail, DefaultRouter, InFlightHtlcs, Path, Payee, PaymentParameters, Route, RouteParameters, Router};
-use crate::routing::scoring::{ProbabilisticScorer, ProbabilisticScoringFeeParameters};
+use crate::routing::router::{BlindedTail, InFlightHtlcs, Path, Payee, PaymentParameters, Route, RouteParameters, Router};
+use crate::ln::onion_payment::{check_incoming_htlc_cltv, create_recv_pending_htlc_info, create_fwd_pending_htlc_info, decode_incoming_update_add_htlc_onion, InboundHTLCErr, NextPacketDetails};
use crate::ln::msgs;
use crate::ln::onion_utils;
-use crate::ln::onion_utils::HTLCFailReason;
+use crate::ln::onion_utils::{HTLCFailReason, INVALID_ONION_BLINDING};
use crate::ln::msgs::{ChannelMessageHandler, DecodeError, LightningError};
#[cfg(test)]
use crate::ln::outbound_payment;
use crate::ln::outbound_payment::{Bolt12PaymentError, OutboundPayments, PaymentAttempts, PendingOutboundPayment, SendAlongPathArgs, StaleExpiration};
use crate::ln::wire::Encode;
-use crate::offers::invoice::{BlindedPayInfo, Bolt12Invoice, DEFAULT_RELATIVE_EXPIRY, DerivedSigningPubkey, InvoiceBuilder};
+use crate::offers::invoice::{BlindedPayInfo, Bolt12Invoice, DEFAULT_RELATIVE_EXPIRY, DerivedSigningPubkey, ExplicitSigningPubkey, InvoiceBuilder, UnsignedBolt12Invoice};
use crate::offers::invoice_error::InvoiceError;
-use crate::offers::merkle::SignError;
-use crate::offers::offer::{DerivedMetadata, Offer, OfferBuilder};
+use crate::offers::invoice_request::{DerivedPayerId, InvoiceRequestBuilder};
+use crate::offers::offer::{Offer, OfferBuilder};
use crate::offers::parse::Bolt12SemanticError;
use crate::offers::refund::{Refund, RefundBuilder};
-use crate::onion_message::{Destination, OffersMessage, OffersMessageHandler, PendingOnionMessage, new_pending_onion_message};
-use crate::sign::{EntropySource, KeysManager, NodeSigner, Recipient, SignerProvider};
+use crate::onion_message::messenger::{Destination, MessageRouter, PendingOnionMessage, new_pending_onion_message};
+use crate::onion_message::offers::{OffersMessage, OffersMessageHandler};
+use crate::sign::{EntropySource, NodeSigner, Recipient, SignerProvider};
use crate::sign::ecdsa::WriteableEcdsaChannelSigner;
use crate::util::config::{UserConfig, ChannelConfig, ChannelConfigUpdate};
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::logger::{Level, Logger, WithContext};
use crate::util::errors::APIError;
+#[cfg(not(c_bindings))]
+use {
+ crate::offers::offer::DerivedMetadata,
+ crate::routing::router::DefaultRouter,
+ crate::routing::gossip::NetworkGraph,
+ crate::routing::scoring::{ProbabilisticScorer, ProbabilisticScoringFeeParameters},
+ crate::sign::KeysManager,
+};
+#[cfg(c_bindings)]
+use {
+ crate::offers::offer::OfferWithDerivedMetadataBuilder,
+ crate::offers::refund::RefundMaybeWithDerivedMetadataBuilder,
+};
use alloc::collections::{btree_map, BTreeMap};
// Alternatively, we can fill an outbound HTLC with a HTLCSource::OutboundRoute indicating this is
// our payment, which we can use to decode errors or inform the user that the payment was sent.
-/// Routing info for an inbound HTLC onion.
+/// Information about where a received HTLC('s onion) has indicated the HTLC should go.
#[derive(Clone)] // See Channel::revoke_and_ack for why, tl;dr: Rust bug
+#[cfg_attr(test, derive(Debug, PartialEq))]
pub enum PendingHTLCRouting {
- /// A forwarded HTLC.
+ /// An HTLC which should be forwarded on to another node.
Forward {
- /// BOLT 4 onion packet.
+ /// The onion which should be included in the forwarded HTLC, telling the next hop what to
+ /// do with the HTLC.
onion_packet: msgs::OnionPacket,
- /// The SCID from the onion that we should forward to. This could be a real SCID or a fake one
- /// generated using `get_fake_scid` from the scid_utils::fake_scid module.
+ /// The short channel ID of the channel which we were instructed to forward this HTLC to.
+ ///
+ /// This could be a real on-chain SCID, an SCID alias, or some other SCID which has meaning
+ /// to the receiving node, such as one returned from
+ /// [`ChannelManager::get_intercept_scid`] or [`ChannelManager::get_phantom_scid`].
short_channel_id: u64, // This should be NonZero<u64> eventually when we bump MSRV
+ /// Set if this HTLC is being forwarded within a blinded path.
+ blinded: Option<BlindedForward>,
},
- /// An HTLC paid to an invoice we generated.
+ /// The onion indicates that this is a payment for an invoice (supposedly) generated by us.
+ ///
+ /// Note that at this point, we have not checked that the invoice being paid was actually
+ /// generated by us, but rather it's claiming to pay an invoice of ours.
Receive {
- /// Payment secret and total msat received.
+ /// Information about the amount the sender intended to pay and (potential) proof that this
+ /// is a payment for an invoice we generated. This proof of payment is is also used for
+ /// linking MPP parts of a larger payment.
payment_data: msgs::FinalOnionHopData,
- /// See [`RecipientOnionFields::payment_metadata`] for more info.
+ /// Additional data which we (allegedly) instructed the sender to include in the onion.
+ ///
+ /// For HTLCs received by LDK, this will ultimately be exposed in
+ /// [`Event::PaymentClaimable::onion_fields`] as
+ /// [`RecipientOnionFields::payment_metadata`].
payment_metadata: Option<Vec<u8>>,
+ /// CLTV expiry of the received HTLC.
+ ///
/// Used to track when we should expire pending HTLCs that go unclaimed.
incoming_cltv_expiry: u32,
- /// Optional shared secret for phantom node.
+ /// If the onion had forwarding instructions to one of our phantom node SCIDs, this will
+ /// provide the onion shared secret used to decrypt the next level of forwarding
+ /// instructions.
phantom_shared_secret: Option<[u8; 32]>,
- /// See [`RecipientOnionFields::custom_tlvs`] for more info.
+ /// Custom TLVs which were set by the sender.
+ ///
+ /// For HTLCs received by LDK, this will ultimately be exposed in
+ /// [`Event::PaymentClaimable::onion_fields`] as
+ /// [`RecipientOnionFields::custom_tlvs`].
custom_tlvs: Vec<(u64, Vec<u8>)>,
+ /// Set if this HTLC is the final hop in a multi-hop blinded path.
+ requires_blinded_error: bool,
},
- /// Incoming keysend (sender provided the preimage in a TLV).
+ /// The onion indicates that this is for payment to us but which contains the preimage for
+ /// claiming included, and is unrelated to any invoice we'd previously generated (aka a
+ /// "keysend" or "spontaneous" payment).
ReceiveKeysend {
- /// This was added in 0.0.116 and will break deserialization on downgrades.
+ /// Information about the amount the sender intended to pay and possibly a token to
+ /// associate MPP parts of a larger payment.
+ ///
+ /// This will only be filled in if receiving MPP keysend payments is enabled, and it being
+ /// present will cause deserialization to fail on versions of LDK prior to 0.0.116.
payment_data: Option<msgs::FinalOnionHopData>,
- /// Preimage for this onion payment.
+ /// Preimage for this onion payment. This preimage is provided by the sender and will be
+ /// used to settle the spontaneous payment.
payment_preimage: PaymentPreimage,
- /// See [`RecipientOnionFields::payment_metadata`] for more info.
+ /// Additional data which we (allegedly) instructed the sender to include in the onion.
+ ///
+ /// For HTLCs received by LDK, this will ultimately bubble back up as
+ /// [`RecipientOnionFields::payment_metadata`].
payment_metadata: Option<Vec<u8>>,
- /// CLTV expiry of the incoming HTLC.
- incoming_cltv_expiry: u32, // Used to track when we should expire pending HTLCs that go unclaimed
- /// See [`RecipientOnionFields::custom_tlvs`] for more info.
+ /// CLTV expiry of the received HTLC.
+ ///
+ /// Used to track when we should expire pending HTLCs that go unclaimed.
+ incoming_cltv_expiry: u32,
+ /// Custom TLVs which were set by the sender.
+ ///
+ /// For HTLCs received by LDK, these will ultimately bubble back up as
+ /// [`RecipientOnionFields::custom_tlvs`].
custom_tlvs: Vec<(u64, Vec<u8>)>,
+ /// Set if this HTLC is the final hop in a multi-hop blinded path.
+ requires_blinded_error: bool,
},
}
-/// Full details of an incoming HTLC, including routing info.
+/// Information used to forward or fail this HTLC that is being forwarded within a blinded path.
+#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
+pub struct BlindedForward {
+ /// The `blinding_point` that was set in the inbound [`msgs::UpdateAddHTLC`], or in the inbound
+ /// onion payload if we're the introduction node. Useful for calculating the next hop's
+ /// [`msgs::UpdateAddHTLC::blinding_point`].
+ pub inbound_blinding_point: PublicKey,
+ /// If needed, this determines how this HTLC should be failed backwards, based on whether we are
+ /// the introduction node.
+ pub failure: BlindedFailure,
+}
+
+impl PendingHTLCRouting {
+ // Used to override the onion failure code and data if the HTLC is blinded.
+ fn blinded_failure(&self) -> Option<BlindedFailure> {
+ match self {
+ Self::Forward { blinded: Some(BlindedForward { failure, .. }), .. } => Some(*failure),
+ Self::Receive { requires_blinded_error: true, .. } => Some(BlindedFailure::FromBlindedNode),
+ Self::ReceiveKeysend { requires_blinded_error: true, .. } => Some(BlindedFailure::FromBlindedNode),
+ _ => None,
+ }
+ }
+}
+
+/// Information about an incoming HTLC, including the [`PendingHTLCRouting`] describing where it
+/// should go next.
#[derive(Clone)] // See Channel::revoke_and_ack for why, tl;dr: Rust bug
+#[cfg_attr(test, derive(Debug, PartialEq))]
pub struct PendingHTLCInfo {
/// Further routing details based on whether the HTLC is being forwarded or received.
pub routing: PendingHTLCRouting,
- /// Shared secret from the previous hop.
+ /// The onion shared secret we build with the sender used to decrypt the onion.
+ ///
+ /// This is later used to encrypt failure packets in the event that the HTLC is failed.
pub incoming_shared_secret: [u8; 32],
- payment_hash: PaymentHash,
- /// Amount received
- pub incoming_amt_msat: Option<u64>, // Added in 0.0.113
- /// Sender intended amount to forward or receive (actual amount received
- /// may overshoot this in either case)
+ /// Hash of the payment preimage, to lock the payment until the receiver releases the preimage.
+ pub payment_hash: PaymentHash,
+ /// Amount received in the incoming HTLC.
+ ///
+ /// This field was added in LDK 0.0.113 and will be `None` for objects written by prior
+ /// versions.
+ pub incoming_amt_msat: Option<u64>,
+ /// The amount the sender indicated should be forwarded on to the next hop or amount the sender
+ /// intended for us to receive for received payments.
+ ///
+ /// If the received amount is less than this for received payments, an intermediary hop has
+ /// attempted to steal some of our funds and we should fail the HTLC (the sender should retry
+ /// it along another path).
+ ///
+ /// Because nodes can take less than their required fees, and because senders may wish to
+ /// improve their own privacy, this amount may be less than [`Self::incoming_amt_msat`] for
+ /// received payments. In such cases, recipients must handle this HTLC as if it had received
+ /// [`Self::outgoing_amt_msat`].
pub outgoing_amt_msat: u64,
- /// Outgoing CLTV height.
+ /// The CLTV the sender has indicated we should set on the forwarded HTLC (or has indicated
+ /// should have been set on the received HTLC for received payments).
pub outgoing_cltv_value: u32,
- /// The fee being skimmed off the top of this HTLC. If this is a forward, it'll be the fee we are
- /// skimming. If we're receiving this HTLC, it's the fee that our counterparty skimmed.
+ /// The fee taken for this HTLC in addition to the standard protocol HTLC fees.
+ ///
+ /// If this is a payment for forwarding, this is the fee we are taking before forwarding the
+ /// HTLC.
+ ///
+ /// If this is a received payment, this is the fee that our counterparty took.
+ ///
+ /// This is used to allow LSPs to take fees as a part of payments, without the sender having to
+ /// shoulder them.
pub skimmed_fee_msat: Option<u64>,
}
Fail(HTLCFailureMsg),
}
+#[cfg_attr(test, derive(Clone, Debug, PartialEq))]
pub(super) struct PendingAddHTLCInfo {
pub(super) forward_info: PendingHTLCInfo,
// Note that this may be an outbound SCID alias for the associated channel.
prev_short_channel_id: u64,
prev_htlc_id: u64,
+ prev_channel_id: ChannelId,
prev_funding_outpoint: OutPoint,
prev_user_channel_id: u128,
}
+#[cfg_attr(test, derive(Clone, Debug, PartialEq))]
pub(super) enum HTLCForwardInfo {
AddHTLC(PendingAddHTLCInfo),
FailHTLC {
htlc_id: u64,
err_packet: msgs::OnionErrorPacket,
},
+ FailMalformedHTLC {
+ htlc_id: u64,
+ failure_code: u16,
+ sha256_of_onion: [u8; 32],
+ },
+}
+
+/// Whether this blinded HTLC is being failed backwards by the introduction node or a blinded node,
+/// which determines the failure message that should be used.
+#[derive(Clone, Copy, Debug, Hash, PartialEq, Eq)]
+pub enum BlindedFailure {
+ /// This HTLC is being failed backwards by the introduction node, and thus should be failed with
+ /// [`msgs::UpdateFailHTLC`] and error code `0x8000|0x4000|24`.
+ FromIntroductionNode,
+ /// This HTLC is being failed backwards by a blinded node within the path, and thus should be
+ /// failed with [`msgs::UpdateFailMalformedHTLC`] and error code `0x8000|0x4000|24`.
+ FromBlindedNode,
}
/// Tracks the inbound corresponding to an outbound HTLC
htlc_id: u64,
incoming_packet_shared_secret: [u8; 32],
phantom_shared_secret: Option<[u8; 32]>,
+ blinded_failure: Option<BlindedFailure>,
+ channel_id: ChannelId,
// This field is consumed by `claim_funds_from_hop()` when updating a force-closed backwards
// channel with a preimage provided by the forward channel.
impl From<&ClaimableHTLC> for events::ClaimedHTLC {
fn from(val: &ClaimableHTLC) -> Self {
events::ClaimedHTLC {
- channel_id: val.prev_hop.outpoint.to_channel_id(),
+ channel_id: val.prev_hop.channel_id,
user_channel_id: val.prev_hop.user_channel_id.unwrap_or(0),
cltv_expiry: val.cltv_expiry,
value_msat: val.value,
}
}
-/// Invalid inbound onion payment.
-pub struct InboundOnionErr {
- /// BOLT 4 error code.
- pub err_code: u16,
- /// Data attached to this error.
- pub err_data: Vec<u8>,
- /// Error message text.
- pub msg: &'static str,
-}
-
/// This enum is used to specify which error data to send to peers when failing back an HTLC
/// using [`ChannelManager::fail_htlc_backwards_with_reason`].
///
struct MsgHandleErrInternal {
err: msgs::LightningError,
- chan_id: Option<(ChannelId, u128)>, // If Some a channel of ours has been closed
+ closes_channel: bool,
shutdown_finish: Option<(ShutdownResult, Option<msgs::ChannelUpdate>)>,
- channel_capacity: Option<u64>,
}
impl MsgHandleErrInternal {
#[inline]
},
},
},
- chan_id: None,
+ closes_channel: false,
shutdown_finish: None,
- channel_capacity: None,
}
}
#[inline]
fn from_no_close(err: msgs::LightningError) -> Self {
- Self { err, chan_id: None, shutdown_finish: None, channel_capacity: None }
+ Self { err, closes_channel: false, shutdown_finish: None }
}
#[inline]
- fn from_finish_shutdown(err: String, channel_id: ChannelId, user_channel_id: u128, shutdown_res: ShutdownResult, channel_update: Option<msgs::ChannelUpdate>, channel_capacity: u64) -> Self {
+ fn from_finish_shutdown(err: String, channel_id: ChannelId, shutdown_res: ShutdownResult, channel_update: Option<msgs::ChannelUpdate>) -> Self {
let err_msg = msgs::ErrorMessage { channel_id, data: err.clone() };
let action = if shutdown_res.monitor_update.is_some() {
// We have a closing `ChannelMonitorUpdate`, which means the channel was funded and we
};
Self {
err: LightningError { err, action },
- chan_id: Some((channel_id, user_channel_id)),
+ closes_channel: true,
shutdown_finish: Some((shutdown_res, channel_update)),
- channel_capacity: Some(channel_capacity)
}
}
#[inline]
},
},
},
- chan_id: None,
+ closes_channel: false,
shutdown_finish: None,
- channel_capacity: None,
}
}
fn closes_channel(&self) -> bool {
- self.chan_id.is_some()
+ self.closes_channel
}
}
///
/// Note that any such events are lost on shutdown, so in general they must be updates which
/// are regenerated on startup.
- ClosedMonitorUpdateRegeneratedOnStartup((OutPoint, ChannelMonitorUpdate)),
+ ClosedMonitorUpdateRegeneratedOnStartup((OutPoint, ChannelId, ChannelMonitorUpdate)),
/// Handle a ChannelMonitorUpdate which may or may not close the channel and may unblock the
/// channel to continue normal operation.
///
MonitorUpdateRegeneratedOnStartup {
counterparty_node_id: PublicKey,
funding_txo: OutPoint,
+ channel_id: ChannelId,
update: ChannelMonitorUpdate
},
/// Some [`ChannelMonitorUpdate`] (s) completed before we were serialized but we still have
/// outbound edge.
EmitEventAndFreeOtherChannel {
event: events::Event,
- downstream_counterparty_and_funding_outpoint: Option<(PublicKey, OutPoint, RAAMonitorUpdateBlockingAction)>,
+ downstream_counterparty_and_funding_outpoint: Option<(PublicKey, OutPoint, ChannelId, RAAMonitorUpdateBlockingAction)>,
},
/// Indicates we should immediately resume the operation of another channel, unless there is
/// some other reason why the channel is blocked. In practice this simply means immediately
downstream_counterparty_node_id: PublicKey,
downstream_funding_outpoint: OutPoint,
blocking_action: RAAMonitorUpdateBlockingAction,
+ downstream_channel_id: ChannelId,
},
}
(0, downstream_counterparty_node_id, required),
(2, downstream_funding_outpoint, required),
(4, blocking_action, required),
+ // Note that by the time we get past the required read above, downstream_funding_outpoint will be
+ // filled in, so we can safely unwrap it here.
+ (5, downstream_channel_id, (default_value, ChannelId::v1_from_funding_outpoint(downstream_funding_outpoint.0.unwrap()))),
},
(2, EmitEventAndFreeOtherChannel) => {
(0, event, upgradable_required),
ReleaseRAAChannelMonitorUpdate {
counterparty_node_id: PublicKey,
channel_funding_outpoint: OutPoint,
+ channel_id: ChannelId,
},
}
impl_writeable_tlv_based_enum!(EventCompletionAction,
(0, ReleaseRAAChannelMonitorUpdate) => {
(0, channel_funding_outpoint, required),
(2, counterparty_node_id, required),
+ // Note that by the time we get past the required read above, channel_funding_outpoint will be
+ // filled in, so we can safely unwrap it here.
+ (3, channel_id, (default_value, ChannelId::v1_from_funding_outpoint(channel_funding_outpoint.0.unwrap()))),
};
);
impl RAAMonitorUpdateBlockingAction {
fn from_prev_hop_data(prev_hop: &HTLCPreviousHopData) -> Self {
Self::ForwardedPaymentInboundClaim {
- channel_id: prev_hop.outpoint.to_channel_id(),
+ channel_id: prev_hop.channel_id,
htlc_id: prev_hop.htlc_id,
}
}
/// The peer is currently connected (i.e. we've seen a
/// [`ChannelMessageHandler::peer_connected`] and no corresponding
/// [`ChannelMessageHandler::peer_disconnected`].
- is_connected: bool,
+ pub is_connected: bool,
}
impl <SP: Deref> PeerState<SP> where SP::Target: SignerProvider {
if require_disconnected && self.is_connected {
return false
}
- self.channel_by_id.iter().filter(|(_, phase)| matches!(phase, ChannelPhase::Funded(_))).count() == 0
+ !self.channel_by_id.iter().any(|(_, phase)|
+ match phase {
+ ChannelPhase::Funded(_) | ChannelPhase::UnfundedOutboundV1(_) => true,
+ ChannelPhase::UnfundedInboundV1(_) => false,
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedOutboundV2(_) => true,
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedInboundV2(_) => false,
+ }
+ )
&& self.monitor_update_blocked_actions.is_empty()
&& self.in_flight_monitor_updates.is_empty()
}
Arc<DefaultRouter<
Arc<NetworkGraph<Arc<L>>>,
Arc<L>,
+ Arc<KeysManager>,
Arc<RwLock<ProbabilisticScorer<Arc<NetworkGraph<Arc<L>>>, Arc<L>>>>,
ProbabilisticScoringFeeParameters,
ProbabilisticScorer<Arc<NetworkGraph<Arc<L>>>, Arc<L>>,
&'e DefaultRouter<
&'f NetworkGraph<&'g L>,
&'g L,
+ &'c KeysManager,
&'h RwLock<ProbabilisticScorer<&'f NetworkGraph<&'g L>, &'g L>>,
ProbabilisticScoringFeeParameters,
ProbabilisticScorer<&'f NetworkGraph<&'g L>, &'g L>
fn get_cm(&self) -> &ChannelManager<M, T, ES, NS, SP, F, R, L> { self }
}
-/// 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.
+/// A lightning node's channel state machine and payment management logic, which facilitates
+/// sending, forwarding, and receiving payments through lightning channels.
+///
+/// [`ChannelManager`] is parameterized by a number of components to achieve this.
+/// - [`chain::Watch`] (typically [`ChainMonitor`]) for on-chain monitoring and enforcement of each
+/// channel
+/// - [`BroadcasterInterface`] for broadcasting transactions related to opening, funding, and
+/// closing channels
+/// - [`EntropySource`] for providing random data needed for cryptographic operations
+/// - [`NodeSigner`] for cryptographic operations scoped to the node
+/// - [`SignerProvider`] for providing signers whose operations are scoped to individual channels
+/// - [`FeeEstimator`] to determine transaction fee rates needed to have a transaction mined in a
+/// timely manner
+/// - [`Router`] for finding payment paths when initiating and retrying payments
+/// - [`Logger`] for logging operational information of varying degrees
+///
+/// Additionally, it implements the following traits:
+/// - [`ChannelMessageHandler`] to handle off-chain channel activity from peers
+/// - [`MessageSendEventsProvider`] to similarly send such messages to peers
+/// - [`OffersMessageHandler`] for BOLT 12 message handling and sending
+/// - [`EventsProvider`] to generate user-actionable [`Event`]s
+/// - [`chain::Listen`] and [`chain::Confirm`] for notification of on-chain activity
+///
+/// Thus, [`ChannelManager`] is typically used to parameterize a [`MessageHandler`] and an
+/// [`OnionMessenger`]. The latter is required to support BOLT 12 functionality.
+///
+/// # `ChannelManager` vs `ChannelMonitor`
+///
+/// It's important to distinguish between the *off-chain* management and *on-chain* enforcement of
+/// lightning channels. [`ChannelManager`] exchanges messages with peers to manage the off-chain
+/// state of each channel. During this process, it generates a [`ChannelMonitor`] for each channel
+/// and a [`ChannelMonitorUpdate`] for each relevant change, notifying its parameterized
+/// [`chain::Watch`] of them.
+///
+/// An implementation of [`chain::Watch`], such as [`ChainMonitor`], is responsible for aggregating
+/// these [`ChannelMonitor`]s and applying any [`ChannelMonitorUpdate`]s to them. It then monitors
+/// for any pertinent on-chain activity, enforcing claims as needed.
+///
+/// This division of off-chain management and on-chain enforcement allows for interesting node
+/// setups. For instance, on-chain enforcement could be moved to a separate host or have added
+/// redundancy, possibly as a watchtower. See [`chain::Watch`] for the relevant interface.
+///
+/// # Initialization
+///
+/// Use [`ChannelManager::new`] with the most recent [`BlockHash`] when creating a fresh instance.
+/// Otherwise, if restarting, construct [`ChannelManagerReadArgs`] with the necessary parameters and
+/// references to any deserialized [`ChannelMonitor`]s that were previously persisted. Use this to
+/// deserialize the [`ChannelManager`] and feed it any new chain data since it was last online, as
+/// detailed in the [`ChannelManagerReadArgs`] documentation.
+///
+/// ```
+/// use bitcoin::BlockHash;
+/// use bitcoin::network::constants::Network;
+/// use lightning::chain::BestBlock;
+/// # use lightning::chain::channelmonitor::ChannelMonitor;
+/// use lightning::ln::channelmanager::{ChainParameters, ChannelManager, ChannelManagerReadArgs};
+/// # use lightning::routing::gossip::NetworkGraph;
+/// use lightning::util::config::UserConfig;
+/// use lightning::util::ser::ReadableArgs;
+///
+/// # fn read_channel_monitors() -> Vec<ChannelMonitor<lightning::sign::InMemorySigner>> { vec![] }
+/// # fn example<
+/// # 'a,
+/// # L: lightning::util::logger::Logger,
+/// # ES: lightning::sign::EntropySource,
+/// # S: for <'b> lightning::routing::scoring::LockableScore<'b, ScoreLookUp = SL>,
+/// # SL: lightning::routing::scoring::ScoreLookUp<ScoreParams = SP>,
+/// # SP: Sized,
+/// # R: lightning::io::Read,
+/// # >(
+/// # fee_estimator: &dyn lightning::chain::chaininterface::FeeEstimator,
+/// # chain_monitor: &dyn lightning::chain::Watch<lightning::sign::InMemorySigner>,
+/// # tx_broadcaster: &dyn lightning::chain::chaininterface::BroadcasterInterface,
+/// # router: &lightning::routing::router::DefaultRouter<&NetworkGraph<&'a L>, &'a L, &ES, &S, SP, SL>,
+/// # logger: &L,
+/// # entropy_source: &ES,
+/// # node_signer: &dyn lightning::sign::NodeSigner,
+/// # signer_provider: &lightning::sign::DynSignerProvider,
+/// # best_block: lightning::chain::BestBlock,
+/// # current_timestamp: u32,
+/// # mut reader: R,
+/// # ) -> Result<(), lightning::ln::msgs::DecodeError> {
+/// // Fresh start with no channels
+/// let params = ChainParameters {
+/// network: Network::Bitcoin,
+/// best_block,
+/// };
+/// let default_config = UserConfig::default();
+/// let channel_manager = ChannelManager::new(
+/// fee_estimator, chain_monitor, tx_broadcaster, router, logger, entropy_source, node_signer,
+/// signer_provider, default_config, params, current_timestamp
+/// );
+///
+/// // Restart from deserialized data
+/// let mut channel_monitors = read_channel_monitors();
+/// let args = ChannelManagerReadArgs::new(
+/// entropy_source, node_signer, signer_provider, fee_estimator, chain_monitor, tx_broadcaster,
+/// router, logger, default_config, channel_monitors.iter_mut().collect()
+/// );
+/// let (block_hash, channel_manager) =
+/// <(BlockHash, ChannelManager<_, _, _, _, _, _, _, _>)>::read(&mut reader, args)?;
+///
+/// // Update the ChannelManager and ChannelMonitors with the latest chain data
+/// // ...
+///
+/// // Move the monitors to the ChannelManager's chain::Watch parameter
+/// for monitor in channel_monitors {
+/// chain_monitor.watch_channel(monitor.get_funding_txo().0, monitor);
+/// }
+/// # Ok(())
+/// # }
+/// ```
+///
+/// # Operation
+///
+/// The following is required for [`ChannelManager`] to function properly:
+/// - Handle messages from peers using its [`ChannelMessageHandler`] implementation (typically
+/// called by [`PeerManager::read_event`] when processing network I/O)
+/// - Send messages to peers obtained via its [`MessageSendEventsProvider`] implementation
+/// (typically initiated when [`PeerManager::process_events`] is called)
+/// - Feed on-chain activity using either its [`chain::Listen`] or [`chain::Confirm`] implementation
+/// as documented by those traits
+/// - Perform any periodic channel and payment checks by calling [`timer_tick_occurred`] roughly
+/// every minute
+/// - Persist to disk whenever [`get_and_clear_needs_persistence`] returns `true` using a
+/// [`Persister`] such as a [`KVStore`] implementation
+/// - Handle [`Event`]s obtained via its [`EventsProvider`] implementation
+///
+/// The [`Future`] returned by [`get_event_or_persistence_needed_future`] is useful in determining
+/// when the last two requirements need to be checked.
+///
+/// The [`lightning-block-sync`] and [`lightning-transaction-sync`] crates provide utilities that
+/// simplify feeding in on-chain activity using the [`chain::Listen`] and [`chain::Confirm`] traits,
+/// respectively. The remaining requirements can be met using the [`lightning-background-processor`]
+/// crate. For languages other than Rust, the availability of similar utilities may vary.
+///
+/// # Channels
+///
+/// [`ChannelManager`]'s primary function involves managing a channel state. Without channels,
+/// payments can't be sent. Use [`list_channels`] or [`list_usable_channels`] for a snapshot of the
+/// currently open channels.
+///
+/// ```
+/// # use lightning::ln::channelmanager::AChannelManager;
+/// #
+/// # fn example<T: AChannelManager>(channel_manager: T) {
+/// # let channel_manager = channel_manager.get_cm();
+/// let channels = channel_manager.list_usable_channels();
+/// for details in channels {
+/// println!("{:?}", details);
+/// }
+/// # }
+/// ```
+///
+/// Each channel is identified using a [`ChannelId`], which will change throughout the channel's
+/// life cycle. Additionally, channels are assigned a `user_channel_id`, which is given in
+/// [`Event`]s associated with the channel and serves as a fixed identifier but is otherwise unused
+/// by [`ChannelManager`].
+///
+/// ## Opening Channels
+///
+/// To an open a channel with a peer, call [`create_channel`]. This will initiate the process of
+/// opening an outbound channel, which requires self-funding when handling
+/// [`Event::FundingGenerationReady`].
+///
+/// ```
+/// # use bitcoin::{ScriptBuf, Transaction};
+/// # use bitcoin::secp256k1::PublicKey;
+/// # use lightning::ln::channelmanager::AChannelManager;
+/// # use lightning::events::{Event, EventsProvider};
+/// #
+/// # trait Wallet {
+/// # fn create_funding_transaction(
+/// # &self, _amount_sats: u64, _output_script: ScriptBuf
+/// # ) -> Transaction;
+/// # }
+/// #
+/// # fn example<T: AChannelManager, W: Wallet>(channel_manager: T, wallet: W, peer_id: PublicKey) {
+/// # let channel_manager = channel_manager.get_cm();
+/// let value_sats = 1_000_000;
+/// let push_msats = 10_000_000;
+/// match channel_manager.create_channel(peer_id, value_sats, push_msats, 42, None, None) {
+/// Ok(channel_id) => println!("Opening channel {}", channel_id),
+/// Err(e) => println!("Error opening channel: {:?}", e),
+/// }
+///
+/// // On the event processing thread once the peer has responded
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::FundingGenerationReady {
+/// temporary_channel_id, counterparty_node_id, channel_value_satoshis, output_script,
+/// user_channel_id, ..
+/// } => {
+/// assert_eq!(user_channel_id, 42);
+/// let funding_transaction = wallet.create_funding_transaction(
+/// channel_value_satoshis, output_script
+/// );
+/// match channel_manager.funding_transaction_generated(
+/// &temporary_channel_id, &counterparty_node_id, funding_transaction
+/// ) {
+/// Ok(()) => println!("Funding channel {}", temporary_channel_id),
+/// Err(e) => println!("Error funding channel {}: {:?}", temporary_channel_id, e),
+/// }
+/// },
+/// Event::ChannelPending { channel_id, user_channel_id, former_temporary_channel_id, .. } => {
+/// assert_eq!(user_channel_id, 42);
+/// println!(
+/// "Channel {} now {} pending (funding transaction has been broadcasted)", channel_id,
+/// former_temporary_channel_id.unwrap()
+/// );
+/// },
+/// Event::ChannelReady { channel_id, user_channel_id, .. } => {
+/// assert_eq!(user_channel_id, 42);
+/// println!("Channel {} ready", channel_id);
+/// },
+/// // ...
+/// # _ => {},
+/// });
+/// # }
+/// ```
+///
+/// ## Accepting Channels
+///
+/// Inbound channels are initiated by peers and are automatically accepted unless [`ChannelManager`]
+/// has [`UserConfig::manually_accept_inbound_channels`] set. In that case, the channel may be
+/// either accepted or rejected when handling [`Event::OpenChannelRequest`].
+///
+/// ```
+/// # use bitcoin::secp256k1::PublicKey;
+/// # use lightning::ln::channelmanager::AChannelManager;
+/// # use lightning::events::{Event, EventsProvider};
+/// #
+/// # fn is_trusted(counterparty_node_id: PublicKey) -> bool {
+/// # // ...
+/// # unimplemented!()
+/// # }
+/// #
+/// # fn example<T: AChannelManager>(channel_manager: T) {
+/// # let channel_manager = channel_manager.get_cm();
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::OpenChannelRequest { temporary_channel_id, counterparty_node_id, .. } => {
+/// if !is_trusted(counterparty_node_id) {
+/// match channel_manager.force_close_without_broadcasting_txn(
+/// &temporary_channel_id, &counterparty_node_id
+/// ) {
+/// Ok(()) => println!("Rejecting channel {}", temporary_channel_id),
+/// Err(e) => println!("Error rejecting channel {}: {:?}", temporary_channel_id, e),
+/// }
+/// return;
+/// }
+///
+/// let user_channel_id = 43;
+/// match channel_manager.accept_inbound_channel(
+/// &temporary_channel_id, &counterparty_node_id, user_channel_id
+/// ) {
+/// Ok(()) => println!("Accepting channel {}", temporary_channel_id),
+/// Err(e) => println!("Error accepting channel {}: {:?}", temporary_channel_id, e),
+/// }
+/// },
+/// // ...
+/// # _ => {},
+/// });
+/// # }
+/// ```
+///
+/// ## Closing Channels
+///
+/// There are two ways to close a channel: either cooperatively using [`close_channel`] or
+/// unilaterally using [`force_close_broadcasting_latest_txn`]. The former is ideal as it makes for
+/// lower fees and immediate access to funds. However, the latter may be necessary if the
+/// counterparty isn't behaving properly or has gone offline. [`Event::ChannelClosed`] is generated
+/// once the channel has been closed successfully.
+///
+/// ```
+/// # use bitcoin::secp256k1::PublicKey;
+/// # use lightning::ln::ChannelId;
+/// # use lightning::ln::channelmanager::AChannelManager;
+/// # use lightning::events::{Event, EventsProvider};
+/// #
+/// # fn example<T: AChannelManager>(
+/// # channel_manager: T, channel_id: ChannelId, counterparty_node_id: PublicKey
+/// # ) {
+/// # let channel_manager = channel_manager.get_cm();
+/// match channel_manager.close_channel(&channel_id, &counterparty_node_id) {
+/// Ok(()) => println!("Closing channel {}", channel_id),
+/// Err(e) => println!("Error closing channel {}: {:?}", channel_id, e),
+/// }
+///
+/// // On the event processing thread
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::ChannelClosed { channel_id, user_channel_id, .. } => {
+/// assert_eq!(user_channel_id, 42);
+/// println!("Channel {} closed", channel_id);
+/// },
+/// // ...
+/// # _ => {},
+/// });
+/// # }
+/// ```
+///
+/// # Payments
+///
+/// [`ChannelManager`] is responsible for sending, forwarding, and receiving payments through its
+/// channels. A payment is typically initiated from a [BOLT 11] invoice or a [BOLT 12] offer, though
+/// spontaneous (i.e., keysend) payments are also possible. Incoming payments don't require
+/// maintaining any additional state as [`ChannelManager`] can reconstruct the [`PaymentPreimage`]
+/// from the [`PaymentSecret`]. Sending payments, however, require tracking in order to retry failed
+/// HTLCs.
+///
+/// After a payment is initiated, it will appear in [`list_recent_payments`] until a short time
+/// after either an [`Event::PaymentSent`] or [`Event::PaymentFailed`] is handled. Failed HTLCs
+/// for a payment will be retried according to the payment's [`Retry`] strategy or until
+/// [`abandon_payment`] is called.
+///
+/// ## BOLT 11 Invoices
+///
+/// The [`lightning-invoice`] crate is useful for creating BOLT 11 invoices. Specifically, use the
+/// functions in its `utils` module for constructing invoices that are compatible with
+/// [`ChannelManager`]. These functions serve as a convenience for building invoices with the
+/// [`PaymentHash`] and [`PaymentSecret`] returned from [`create_inbound_payment`]. To provide your
+/// own [`PaymentHash`], use [`create_inbound_payment_for_hash`] or the corresponding functions in
+/// the [`lightning-invoice`] `utils` module.
+///
+/// [`ChannelManager`] generates an [`Event::PaymentClaimable`] once the full payment has been
+/// received. Call [`claim_funds`] to release the [`PaymentPreimage`], which in turn will result in
+/// an [`Event::PaymentClaimed`].
///
-/// Implements [`ChannelMessageHandler`], handling the multi-channel parts and passing things through
-/// to individual Channels.
+/// ```
+/// # use lightning::events::{Event, EventsProvider, PaymentPurpose};
+/// # use lightning::ln::channelmanager::AChannelManager;
+/// #
+/// # fn example<T: AChannelManager>(channel_manager: T) {
+/// # let channel_manager = channel_manager.get_cm();
+/// // Or use utils::create_invoice_from_channelmanager
+/// let known_payment_hash = match channel_manager.create_inbound_payment(
+/// Some(10_000_000), 3600, None
+/// ) {
+/// Ok((payment_hash, _payment_secret)) => {
+/// println!("Creating inbound payment {}", payment_hash);
+/// payment_hash
+/// },
+/// Err(()) => panic!("Error creating inbound payment"),
+/// };
+///
+/// // On the event processing thread
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::PaymentClaimable { payment_hash, purpose, .. } => match purpose {
+/// PaymentPurpose::InvoicePayment { payment_preimage: Some(payment_preimage), .. } => {
+/// assert_eq!(payment_hash, known_payment_hash);
+/// println!("Claiming payment {}", payment_hash);
+/// channel_manager.claim_funds(payment_preimage);
+/// },
+/// PaymentPurpose::InvoicePayment { payment_preimage: None, .. } => {
+/// println!("Unknown payment hash: {}", payment_hash);
+/// },
+/// PaymentPurpose::SpontaneousPayment(payment_preimage) => {
+/// assert_ne!(payment_hash, known_payment_hash);
+/// println!("Claiming spontaneous payment {}", payment_hash);
+/// channel_manager.claim_funds(payment_preimage);
+/// },
+/// },
+/// Event::PaymentClaimed { payment_hash, amount_msat, .. } => {
+/// assert_eq!(payment_hash, known_payment_hash);
+/// println!("Claimed {} msats", amount_msat);
+/// },
+/// // ...
+/// # _ => {},
+/// });
+/// # }
+/// ```
+///
+/// For paying an invoice, [`lightning-invoice`] provides a `payment` module with convenience
+/// functions for use with [`send_payment`].
+///
+/// ```
+/// # use lightning::events::{Event, EventsProvider};
+/// # use lightning::ln::PaymentHash;
+/// # use lightning::ln::channelmanager::{AChannelManager, PaymentId, RecentPaymentDetails, RecipientOnionFields, Retry};
+/// # use lightning::routing::router::RouteParameters;
+/// #
+/// # fn example<T: AChannelManager>(
+/// # channel_manager: T, payment_hash: PaymentHash, recipient_onion: RecipientOnionFields,
+/// # route_params: RouteParameters, retry: Retry
+/// # ) {
+/// # let channel_manager = channel_manager.get_cm();
+/// // let (payment_hash, recipient_onion, route_params) =
+/// // payment::payment_parameters_from_invoice(&invoice);
+/// let payment_id = PaymentId([42; 32]);
+/// match channel_manager.send_payment(
+/// payment_hash, recipient_onion, payment_id, route_params, retry
+/// ) {
+/// Ok(()) => println!("Sending payment with hash {}", payment_hash),
+/// Err(e) => println!("Failed sending payment with hash {}: {:?}", payment_hash, e),
+/// }
+///
+/// let expected_payment_id = payment_id;
+/// let expected_payment_hash = payment_hash;
+/// assert!(
+/// channel_manager.list_recent_payments().iter().find(|details| matches!(
+/// details,
+/// RecentPaymentDetails::Pending {
+/// payment_id: expected_payment_id,
+/// payment_hash: expected_payment_hash,
+/// ..
+/// }
+/// )).is_some()
+/// );
+///
+/// // On the event processing thread
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::PaymentSent { payment_hash, .. } => println!("Paid {}", payment_hash),
+/// Event::PaymentFailed { payment_hash, .. } => println!("Failed paying {}", payment_hash),
+/// // ...
+/// # _ => {},
+/// });
+/// # }
+/// ```
+///
+/// ## BOLT 12 Offers
+///
+/// The [`offers`] module is useful for creating BOLT 12 offers. An [`Offer`] is a precursor to a
+/// [`Bolt12Invoice`], which must first be requested by the payer. The interchange of these messages
+/// as defined in the specification is handled by [`ChannelManager`] and its implementation of
+/// [`OffersMessageHandler`]. However, this only works with an [`Offer`] created using a builder
+/// returned by [`create_offer_builder`]. With this approach, BOLT 12 offers and invoices are
+/// stateless just as BOLT 11 invoices are.
+///
+/// ```
+/// # use lightning::events::{Event, EventsProvider, PaymentPurpose};
+/// # use lightning::ln::channelmanager::AChannelManager;
+/// # use lightning::offers::parse::Bolt12SemanticError;
+/// #
+/// # fn example<T: AChannelManager>(channel_manager: T) -> Result<(), Bolt12SemanticError> {
+/// # let channel_manager = channel_manager.get_cm();
+/// let offer = channel_manager
+/// .create_offer_builder("coffee".to_string())?
+/// # ;
+/// # // Needed for compiling for c_bindings
+/// # let builder: lightning::offers::offer::OfferBuilder<_, _> = offer.into();
+/// # let offer = builder
+/// .amount_msats(10_000_000)
+/// .build()?;
+/// let bech32_offer = offer.to_string();
+///
+/// // On the event processing thread
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::PaymentClaimable { payment_hash, purpose, .. } => match purpose {
+/// PaymentPurpose::InvoicePayment { payment_preimage: Some(payment_preimage), .. } => {
+/// println!("Claiming payment {}", payment_hash);
+/// channel_manager.claim_funds(payment_preimage);
+/// },
+/// PaymentPurpose::InvoicePayment { payment_preimage: None, .. } => {
+/// println!("Unknown payment hash: {}", payment_hash);
+/// },
+/// // ...
+/// # _ => {},
+/// },
+/// Event::PaymentClaimed { payment_hash, amount_msat, .. } => {
+/// println!("Claimed {} msats", amount_msat);
+/// },
+/// // ...
+/// # _ => {},
+/// });
+/// # Ok(())
+/// # }
+/// ```
+///
+/// Use [`pay_for_offer`] to initiated payment, which sends an [`InvoiceRequest`] for an [`Offer`]
+/// and pays the [`Bolt12Invoice`] response. In addition to success and failure events,
+/// [`ChannelManager`] may also generate an [`Event::InvoiceRequestFailed`].
+///
+/// ```
+/// # use lightning::events::{Event, EventsProvider};
+/// # use lightning::ln::channelmanager::{AChannelManager, PaymentId, RecentPaymentDetails, Retry};
+/// # use lightning::offers::offer::Offer;
+/// #
+/// # fn example<T: AChannelManager>(
+/// # channel_manager: T, offer: &Offer, quantity: Option<u64>, amount_msats: Option<u64>,
+/// # payer_note: Option<String>, retry: Retry, max_total_routing_fee_msat: Option<u64>
+/// # ) {
+/// # let channel_manager = channel_manager.get_cm();
+/// let payment_id = PaymentId([42; 32]);
+/// match channel_manager.pay_for_offer(
+/// offer, quantity, amount_msats, payer_note, payment_id, retry, max_total_routing_fee_msat
+/// ) {
+/// Ok(()) => println!("Requesting invoice for offer"),
+/// Err(e) => println!("Unable to request invoice for offer: {:?}", e),
+/// }
+///
+/// // First the payment will be waiting on an invoice
+/// let expected_payment_id = payment_id;
+/// assert!(
+/// channel_manager.list_recent_payments().iter().find(|details| matches!(
+/// details,
+/// RecentPaymentDetails::AwaitingInvoice { payment_id: expected_payment_id }
+/// )).is_some()
+/// );
+///
+/// // Once the invoice is received, a payment will be sent
+/// assert!(
+/// channel_manager.list_recent_payments().iter().find(|details| matches!(
+/// details,
+/// RecentPaymentDetails::Pending { payment_id: expected_payment_id, .. }
+/// )).is_some()
+/// );
+///
+/// // On the event processing thread
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::PaymentSent { payment_id: Some(payment_id), .. } => println!("Paid {}", payment_id),
+/// Event::PaymentFailed { payment_id, .. } => println!("Failed paying {}", payment_id),
+/// Event::InvoiceRequestFailed { payment_id, .. } => println!("Failed paying {}", payment_id),
+/// // ...
+/// # _ => {},
+/// });
+/// # }
+/// ```
+///
+/// ## BOLT 12 Refunds
+///
+/// A [`Refund`] is a request for an invoice to be paid. Like *paying* for an [`Offer`], *creating*
+/// a [`Refund`] involves maintaining state since it represents a future outbound payment.
+/// Therefore, use [`create_refund_builder`] when creating one, otherwise [`ChannelManager`] will
+/// refuse to pay any corresponding [`Bolt12Invoice`] that it receives.
+///
+/// ```
+/// # use core::time::Duration;
+/// # use lightning::events::{Event, EventsProvider};
+/// # use lightning::ln::channelmanager::{AChannelManager, PaymentId, RecentPaymentDetails, Retry};
+/// # use lightning::offers::parse::Bolt12SemanticError;
+/// #
+/// # fn example<T: AChannelManager>(
+/// # channel_manager: T, amount_msats: u64, absolute_expiry: Duration, retry: Retry,
+/// # max_total_routing_fee_msat: Option<u64>
+/// # ) -> Result<(), Bolt12SemanticError> {
+/// # let channel_manager = channel_manager.get_cm();
+/// let payment_id = PaymentId([42; 32]);
+/// let refund = channel_manager
+/// .create_refund_builder(
+/// "coffee".to_string(), amount_msats, absolute_expiry, payment_id, retry,
+/// max_total_routing_fee_msat
+/// )?
+/// # ;
+/// # // Needed for compiling for c_bindings
+/// # let builder: lightning::offers::refund::RefundBuilder<_> = refund.into();
+/// # let refund = builder
+/// .payer_note("refund for order 1234".to_string())
+/// .build()?;
+/// let bech32_refund = refund.to_string();
+///
+/// // First the payment will be waiting on an invoice
+/// let expected_payment_id = payment_id;
+/// assert!(
+/// channel_manager.list_recent_payments().iter().find(|details| matches!(
+/// details,
+/// RecentPaymentDetails::AwaitingInvoice { payment_id: expected_payment_id }
+/// )).is_some()
+/// );
+///
+/// // Once the invoice is received, a payment will be sent
+/// assert!(
+/// channel_manager.list_recent_payments().iter().find(|details| matches!(
+/// details,
+/// RecentPaymentDetails::Pending { payment_id: expected_payment_id, .. }
+/// )).is_some()
+/// );
+///
+/// // On the event processing thread
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::PaymentSent { payment_id: Some(payment_id), .. } => println!("Paid {}", payment_id),
+/// Event::PaymentFailed { payment_id, .. } => println!("Failed paying {}", payment_id),
+/// // ...
+/// # _ => {},
+/// });
+/// # Ok(())
+/// # }
+/// ```
+///
+/// Use [`request_refund_payment`] to send a [`Bolt12Invoice`] for receiving the refund. Similar to
+/// *creating* an [`Offer`], this is stateless as it represents an inbound payment.
+///
+/// ```
+/// # use lightning::events::{Event, EventsProvider, PaymentPurpose};
+/// # use lightning::ln::channelmanager::AChannelManager;
+/// # use lightning::offers::refund::Refund;
+/// #
+/// # fn example<T: AChannelManager>(channel_manager: T, refund: &Refund) {
+/// # let channel_manager = channel_manager.get_cm();
+/// let known_payment_hash = match channel_manager.request_refund_payment(refund) {
+/// Ok(invoice) => {
+/// let payment_hash = invoice.payment_hash();
+/// println!("Requesting refund payment {}", payment_hash);
+/// payment_hash
+/// },
+/// Err(e) => panic!("Unable to request payment for refund: {:?}", e),
+/// };
+///
+/// // On the event processing thread
+/// channel_manager.process_pending_events(&|event| match event {
+/// Event::PaymentClaimable { payment_hash, purpose, .. } => match purpose {
+/// PaymentPurpose::InvoicePayment { payment_preimage: Some(payment_preimage), .. } => {
+/// assert_eq!(payment_hash, known_payment_hash);
+/// println!("Claiming payment {}", payment_hash);
+/// channel_manager.claim_funds(payment_preimage);
+/// },
+/// PaymentPurpose::InvoicePayment { payment_preimage: None, .. } => {
+/// println!("Unknown payment hash: {}", payment_hash);
+/// },
+/// // ...
+/// # _ => {},
+/// },
+/// Event::PaymentClaimed { payment_hash, amount_msat, .. } => {
+/// assert_eq!(payment_hash, known_payment_hash);
+/// println!("Claimed {} msats", amount_msat);
+/// },
+/// // ...
+/// # _ => {},
+/// });
+/// # }
+/// ```
+///
+/// # Persistence
///
/// 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
/// 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.
///
+/// # `ChannelUpdate` Messages
+///
/// 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.
///
+/// # DoS Mitigation
+///
/// 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
/// 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.
///
+/// # Type Aliases
+///
/// 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.
///
+/// [`ChainMonitor`]: crate::chain::chainmonitor::ChainMonitor
+/// [`MessageHandler`]: crate::ln::peer_handler::MessageHandler
+/// [`OnionMessenger`]: crate::onion_message::messenger::OnionMessenger
+/// [`PeerManager::read_event`]: crate::ln::peer_handler::PeerManager::read_event
+/// [`PeerManager::process_events`]: crate::ln::peer_handler::PeerManager::process_events
+/// [`timer_tick_occurred`]: Self::timer_tick_occurred
+/// [`get_and_clear_needs_persistence`]: Self::get_and_clear_needs_persistence
+/// [`Persister`]: crate::util::persist::Persister
+/// [`KVStore`]: crate::util::persist::KVStore
+/// [`get_event_or_persistence_needed_future`]: Self::get_event_or_persistence_needed_future
+/// [`lightning-block-sync`]: https://docs.rs/lightning_block_sync/latest/lightning_block_sync
+/// [`lightning-transaction-sync`]: https://docs.rs/lightning_transaction_sync/latest/lightning_transaction_sync
+/// [`lightning-background-processor`]: https://docs.rs/lightning_background_processor/lightning_background_processor
+/// [`list_channels`]: Self::list_channels
+/// [`list_usable_channels`]: Self::list_usable_channels
+/// [`create_channel`]: Self::create_channel
+/// [`close_channel`]: Self::force_close_broadcasting_latest_txn
+/// [`force_close_broadcasting_latest_txn`]: Self::force_close_broadcasting_latest_txn
+/// [BOLT 11]: https://github.com/lightning/bolts/blob/master/11-payment-encoding.md
+/// [BOLT 12]: https://github.com/rustyrussell/lightning-rfc/blob/guilt/offers/12-offer-encoding.md
+/// [`list_recent_payments`]: Self::list_recent_payments
+/// [`abandon_payment`]: Self::abandon_payment
+/// [`lightning-invoice`]: https://docs.rs/lightning_invoice/latest/lightning_invoice
+/// [`create_inbound_payment`]: Self::create_inbound_payment
+/// [`create_inbound_payment_for_hash`]: Self::create_inbound_payment_for_hash
+/// [`claim_funds`]: Self::claim_funds
+/// [`send_payment`]: Self::send_payment
+/// [`offers`]: crate::offers
+/// [`create_offer_builder`]: Self::create_offer_builder
+/// [`pay_for_offer`]: Self::pay_for_offer
+/// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
+/// [`create_refund_builder`]: Self::create_refund_builder
+/// [`request_refund_payment`]: Self::request_refund_payment
/// [`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:
// | |
// | |__`pending_intercepted_htlcs`
// |
+// |__`decode_update_add_htlcs`
+// |
// |__`per_peer_state`
// |
// |__`pending_inbound_payments`
// |
// |__`peer_state`
// |
-// |__`id_to_peer`
+// |__`outpoint_to_peer`
// |
// |__`short_to_chan_info`
// |
/// See `ChannelManager` struct-level documentation for lock order requirements.
pending_intercepted_htlcs: Mutex<HashMap<InterceptId, PendingAddHTLCInfo>>,
+ /// SCID/SCID Alias -> pending `update_add_htlc`s to decode.
+ ///
+ /// Note that because we may have an SCID Alias as the key we can have two entries per channel,
+ /// though in practice we probably won't be receiving HTLCs for a channel both via the alias
+ /// and via the classic SCID.
+ ///
+ /// Note that no consistency guarantees are made about the existence of a channel with the
+ /// `short_channel_id` here, nor the `channel_id` in `UpdateAddHTLC`!
+ ///
+ /// See `ChannelManager` struct-level documentation for lock order requirements.
+ decode_update_add_htlcs: Mutex<HashMap<u64, Vec<msgs::UpdateAddHTLC>>>,
+
/// The sets of payments which are claimable or currently being claimed. See
/// [`ClaimablePayments`]' individual field docs for more info.
///
/// See `ChannelManager` struct-level documentation for lock order requirements.
outbound_scid_aliases: Mutex<HashSet<u64>>,
- /// `channel_id` -> `counterparty_node_id`.
- ///
- /// Only `channel_id`s are allowed as keys in this map, and not `temporary_channel_id`s. As
- /// multiple channels with the same `temporary_channel_id` to different peers can exist,
- /// allowing `temporary_channel_id`s in this map would cause collisions for such channels.
+ /// Channel funding outpoint -> `counterparty_node_id`.
///
/// Note that this map should only be used for `MonitorEvent` handling, to be able to access
/// the corresponding channel for the event, as we only have access to the `channel_id` during
/// required to access the channel with the `counterparty_node_id`.
///
/// See `ChannelManager` struct-level documentation for lock order requirements.
- id_to_peer: Mutex<HashMap<ChannelId, PublicKey>>,
+ #[cfg(not(test))]
+ outpoint_to_peer: Mutex<HashMap<OutPoint, PublicKey>>,
+ #[cfg(test)]
+ pub(crate) outpoint_to_peer: Mutex<HashMap<OutPoint, PublicKey>>,
/// SCIDs (and outbound SCID aliases) -> `counterparty_node_id`s and `channel_id`s.
///
pending_offers_messages: Mutex<Vec<PendingOnionMessage<OffersMessage>>>,
+ /// Tracks the message events that are to be broadcasted when we are connected to some peer.
+ pending_broadcast_messages: Mutex<Vec<MessageSendEvent>>,
+
entropy_source: ES,
node_signer: NS,
signer_provider: SP,
// then waiting ANTI_REORG_DELAY to be reorg-safe on the outbound HLTC and
// failing the corresponding htlc backward, and us now seeing the last block of ANTI_REORG_DELAY before
// LATENCY_GRACE_PERIOD_BLOCKS.
-#[deny(const_err)]
#[allow(dead_code)]
const CHECK_CLTV_EXPIRY_SANITY: u32 = MIN_CLTV_EXPIRY_DELTA as u32 - LATENCY_GRACE_PERIOD_BLOCKS - CLTV_CLAIM_BUFFER - ANTI_REORG_DELAY - LATENCY_GRACE_PERIOD_BLOCKS;
// Check for ability of an attacker to make us fail on-chain by delaying an HTLC claim. See
// ChannelMonitor::should_broadcast_holder_commitment_txn for a description of why this is needed.
-#[deny(const_err)]
#[allow(dead_code)]
const CHECK_CLTV_EXPIRY_SANITY_2: u32 = MIN_CLTV_EXPIRY_DELTA as u32 - LATENCY_GRACE_PERIOD_BLOCKS - 2*CLTV_CLAIM_BUFFER;
pub counterparty: ChannelCounterparty,
/// The Channel's funding transaction output, if we've negotiated the funding transaction with
/// our counterparty already.
- ///
- /// Note that, if this has been set, `channel_id` will be equivalent to
- /// `funding_txo.unwrap().to_channel_id()`.
pub funding_txo: Option<OutPoint>,
/// The features which this channel operates with. See individual features for more info.
///
///
/// This field is only `None` for `ChannelDetails` objects serialized prior to LDK 0.0.109.
pub config: Option<ChannelConfig>,
+ /// Pending inbound HTLCs.
+ ///
+ /// This field is empty for objects serialized with LDK versions prior to 0.0.122.
+ pub pending_inbound_htlcs: Vec<InboundHTLCDetails>,
+ /// Pending outbound HTLCs.
+ ///
+ /// This field is empty for objects serialized with LDK versions prior to 0.0.122.
+ pub pending_outbound_htlcs: Vec<OutboundHTLCDetails>,
}
impl ChannelDetails {
inbound_htlc_maximum_msat: context.get_holder_htlc_maximum_msat(),
config: Some(context.config()),
channel_shutdown_state: Some(context.shutdown_state()),
+ pending_inbound_htlcs: context.get_pending_inbound_htlc_details(),
+ pending_outbound_htlcs: context.get_pending_outbound_htlc_details(),
}
}
}
match $internal {
Ok(msg) => Ok(msg),
- Err(MsgHandleErrInternal { err, chan_id, shutdown_finish, channel_capacity }) => {
- let mut msg_events = Vec::with_capacity(2);
+ Err(MsgHandleErrInternal { err, shutdown_finish, .. }) => {
+ let mut msg_event = None;
if let Some((shutdown_res, update_option)) = shutdown_finish {
+ let counterparty_node_id = shutdown_res.counterparty_node_id;
+ let channel_id = shutdown_res.channel_id;
+ let logger = WithContext::from(
+ &$self.logger, Some(counterparty_node_id), Some(channel_id),
+ );
+ log_error!(logger, "Force-closing channel: {}", err.err);
+
$self.finish_close_channel(shutdown_res);
if let Some(update) = update_option {
- msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ let mut pending_broadcast_messages = $self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate {
msg: update
});
}
- if let Some((channel_id, user_channel_id)) = chan_id {
- $self.pending_events.lock().unwrap().push_back((events::Event::ChannelClosed {
- channel_id, user_channel_id,
- reason: ClosureReason::ProcessingError { err: err.err.clone() },
- counterparty_node_id: Some($counterparty_node_id),
- channel_capacity_sats: channel_capacity,
- }, None));
- }
+ } else {
+ log_error!($self.logger, "Got non-closing error: {}", err.err);
}
- log_error!($self.logger, "{}", err.err);
if let msgs::ErrorAction::IgnoreError = err.action {
} else {
- msg_events.push(events::MessageSendEvent::HandleError {
+ msg_event = Some(events::MessageSendEvent::HandleError {
node_id: $counterparty_node_id,
action: err.action.clone()
});
}
- if !msg_events.is_empty() {
+ if let Some(msg_event) = msg_event {
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 = peer_state_mutex.lock().unwrap();
- peer_state.pending_msg_events.append(&mut msg_events);
+ peer_state.pending_msg_events.push(msg_event);
}
}
},
}
} };
- ($self: ident, $internal: expr) => {
- match $internal {
- Ok(res) => Ok(res),
- Err((chan, msg_handle_err)) => {
- let counterparty_node_id = chan.get_counterparty_node_id();
- handle_error!($self, Err(msg_handle_err), counterparty_node_id).map_err(|err| (chan, err))
- },
- }
- };
}
macro_rules! update_maps_on_chan_removal {
($self: expr, $channel_context: expr) => {{
- $self.id_to_peer.lock().unwrap().remove(&$channel_context.channel_id());
+ if let Some(outpoint) = $channel_context.get_funding_txo() {
+ $self.outpoint_to_peer.lock().unwrap().remove(&outpoint);
+ }
let mut short_to_chan_info = $self.short_to_chan_info.write().unwrap();
if let Some(short_id) = $channel_context.get_short_channel_id() {
short_to_chan_info.remove(&short_id);
(false, MsgHandleErrInternal::from_chan_no_close(ChannelError::Ignore(msg), *$channel_id))
},
ChannelError::Close(msg) => {
- log_error!($self.logger, "Closing channel {} due to close-required error: {}", $channel_id, msg);
+ let logger = WithChannelContext::from(&$self.logger, &$channel.context);
+ log_error!(logger, "Closing channel {} due to close-required error: {}", $channel_id, msg);
update_maps_on_chan_removal!($self, $channel.context);
- let shutdown_res = $channel.context.force_shutdown(true);
- let user_id = $channel.context.get_user_id();
- let channel_capacity_satoshis = $channel.context.get_value_satoshis();
-
- (true, MsgHandleErrInternal::from_finish_shutdown(msg, *$channel_id, user_id,
- shutdown_res, $channel_update, channel_capacity_satoshis))
+ let reason = ClosureReason::ProcessingError { err: msg.clone() };
+ let shutdown_res = $channel.context.force_shutdown(true, reason);
+ let err =
+ MsgHandleErrInternal::from_finish_shutdown(msg, *$channel_id, shutdown_res, $channel_update);
+ (true, err)
},
}
};
ChannelPhase::UnfundedInboundV1(channel) => {
convert_chan_phase_err!($self, $err, channel, $channel_id, UNFUNDED_CHANNEL)
},
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedOutboundV2(channel) => {
+ convert_chan_phase_err!($self, $err, channel, $channel_id, UNFUNDED_CHANNEL)
+ },
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedInboundV2(channel) => {
+ convert_chan_phase_err!($self, $err, channel, $channel_id, UNFUNDED_CHANNEL)
+ },
}
};
}
counterparty_node_id: $channel.context.get_counterparty_node_id(),
user_channel_id: $channel.context.get_user_id(),
funding_txo: $channel.context.get_funding_txo().unwrap().into_bitcoin_outpoint(),
+ channel_type: Some($channel.context.get_channel_type().clone()),
}, None));
$channel.context.set_channel_pending_event_emitted();
}
macro_rules! handle_monitor_update_completion {
($self: ident, $peer_state_lock: expr, $peer_state: expr, $per_peer_state_lock: expr, $chan: expr) => { {
- let mut updates = $chan.monitor_updating_restored(&$self.logger,
+ let logger = WithChannelContext::from(&$self.logger, &$chan.context);
+ let mut updates = $chan.monitor_updating_restored(&&logger,
&$self.node_signer, $self.chain_hash, &$self.default_configuration,
- $self.best_block.read().unwrap().height());
+ $self.best_block.read().unwrap().height);
let counterparty_node_id = $chan.context.get_counterparty_node_id();
let channel_update = if updates.channel_ready.is_some() && $chan.context.is_usable() {
// We only send a channel_update in the case where we are just now sending a
let update_actions = $peer_state.monitor_update_blocked_actions
.remove(&$chan.context.channel_id()).unwrap_or(Vec::new());
- let htlc_forwards = $self.handle_channel_resumption(
+ let (htlc_forwards, decode_update_add_htlcs) = $self.handle_channel_resumption(
&mut $peer_state.pending_msg_events, $chan, updates.raa,
- updates.commitment_update, updates.order, updates.accepted_htlcs,
+ updates.commitment_update, updates.order, updates.accepted_htlcs, updates.pending_update_adds,
updates.funding_broadcastable, updates.channel_ready,
updates.announcement_sigs);
if let Some(upd) = channel_update {
if let Some(forwards) = htlc_forwards {
$self.forward_htlcs(&mut [forwards][..]);
}
+ if let Some(decode) = decode_update_add_htlcs {
+ $self.push_decode_update_add_htlcs(decode);
+ }
$self.finalize_claims(updates.finalized_claimed_htlcs);
for failure in updates.failed_htlcs.drain(..) {
let receiver = HTLCDestination::NextHopChannel { node_id: Some(counterparty_node_id), channel_id };
macro_rules! handle_new_monitor_update {
($self: ident, $update_res: expr, $chan: expr, _internal, $completed: expr) => { {
debug_assert!($self.background_events_processed_since_startup.load(Ordering::Acquire));
+ let logger = WithChannelContext::from(&$self.logger, &$chan.context);
match $update_res {
ChannelMonitorUpdateStatus::UnrecoverableError => {
let err_str = "ChannelMonitor[Update] persistence failed unrecoverably. This indicates we cannot continue normal operation and must shut down.";
- log_error!($self.logger, "{}", err_str);
+ log_error!(logger, "{}", err_str);
panic!("{}", err_str);
},
ChannelMonitorUpdateStatus::InProgress => {
- log_debug!($self.logger, "ChannelMonitor update for {} in flight, holding messages until the update completes.",
+ log_debug!(logger, "ChannelMonitor update for {} in flight, holding messages until the update completes.",
&$chan.context.channel_id());
false
},
best_block: RwLock::new(params.best_block),
- outbound_scid_aliases: Mutex::new(HashSet::new()),
- pending_inbound_payments: Mutex::new(HashMap::new()),
+ outbound_scid_aliases: Mutex::new(new_hash_set()),
+ pending_inbound_payments: Mutex::new(new_hash_map()),
pending_outbound_payments: OutboundPayments::new(),
- forward_htlcs: Mutex::new(HashMap::new()),
- claimable_payments: Mutex::new(ClaimablePayments { claimable_payments: HashMap::new(), pending_claiming_payments: HashMap::new() }),
- pending_intercepted_htlcs: Mutex::new(HashMap::new()),
- id_to_peer: Mutex::new(HashMap::new()),
- short_to_chan_info: FairRwLock::new(HashMap::new()),
+ forward_htlcs: Mutex::new(new_hash_map()),
+ decode_update_add_htlcs: Mutex::new(new_hash_map()),
+ claimable_payments: Mutex::new(ClaimablePayments { claimable_payments: new_hash_map(), pending_claiming_payments: new_hash_map() }),
+ pending_intercepted_htlcs: Mutex::new(new_hash_map()),
+ outpoint_to_peer: Mutex::new(new_hash_map()),
+ short_to_chan_info: FairRwLock::new(new_hash_map()),
our_network_pubkey: node_signer.get_node_id(Recipient::Node).unwrap(),
secp_ctx,
highest_seen_timestamp: AtomicUsize::new(current_timestamp as usize),
- per_peer_state: FairRwLock::new(HashMap::new()),
+ per_peer_state: FairRwLock::new(new_hash_map()),
pending_events: Mutex::new(VecDeque::new()),
pending_events_processor: AtomicBool::new(false),
funding_batch_states: Mutex::new(BTreeMap::new()),
pending_offers_messages: Mutex::new(Vec::new()),
+ pending_broadcast_messages: Mutex::new(Vec::new()),
entropy_source,
node_signer,
}
fn create_and_insert_outbound_scid_alias(&self) -> u64 {
- let height = self.best_block.read().unwrap().height();
+ let height = self.best_block.read().unwrap().height;
let mut outbound_scid_alias = 0;
let mut i = 0;
loop {
let config = if override_config.is_some() { override_config.as_ref().unwrap() } else { &self.default_configuration };
match OutboundV1Channel::new(&self.fee_estimator, &self.entropy_source, &self.signer_provider, their_network_key,
their_features, channel_value_satoshis, push_msat, user_channel_id, config,
- self.best_block.read().unwrap().height(), outbound_scid_alias, temporary_channel_id)
+ self.best_block.read().unwrap().height, outbound_scid_alias, temporary_channel_id)
{
Ok(res) => res,
Err(e) => {
fn list_funded_channels_with_filter<Fn: FnMut(&(&ChannelId, &Channel<SP>)) -> bool + Copy>(&self, f: Fn) -> Vec<ChannelDetails> {
// 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
+ // a scid or a scid alias, and the `outpoint_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.
let mut res = Vec::with_capacity(self.short_to_chan_info.read().unwrap().len());
{
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
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();
pub fn list_channels(&self) -> Vec<ChannelDetails> {
// 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
+ // a scid or a scid alias, and the `outpoint_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.
let mut res = Vec::with_capacity(self.short_to_chan_info.read().unwrap().len());
{
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
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();
/// 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 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) {
.collect()
}
- /// Helper function that issues the channel close events
- fn issue_channel_close_events(&self, context: &ChannelContext<SP>, closure_reason: ClosureReason) {
- let mut pending_events_lock = self.pending_events.lock().unwrap();
- match context.unbroadcasted_funding() {
- Some(transaction) => {
- pending_events_lock.push_back((events::Event::DiscardFunding {
- channel_id: context.channel_id(), transaction
- }, None));
- },
- None => {},
- }
- pending_events_lock.push_back((events::Event::ChannelClosed {
- channel_id: context.channel_id(),
- user_channel_id: context.get_user_id(),
- reason: closure_reason,
- counterparty_node_id: Some(context.get_counterparty_node_id()),
- channel_capacity_sats: Some(context.get_value_satoshis()),
- }, None));
- }
-
fn close_channel_internal(&self, channel_id: &ChannelId, counterparty_node_id: &PublicKey, target_feerate_sats_per_1000_weight: Option<u32>, override_shutdown_script: Option<ShutdownScript>) -> Result<(), APIError> {
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
- let mut failed_htlcs: Vec<(HTLCSource, PaymentHash)>;
- let shutdown_result;
- loop {
+ let mut failed_htlcs: Vec<(HTLCSource, PaymentHash)> = Vec::new();
+ let mut shutdown_result = None;
+
+ {
let per_peer_state = self.per_peer_state.read().unwrap();
let peer_state_mutex = per_peer_state.get(counterparty_node_id)
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
let funding_txo_opt = chan.context.get_funding_txo();
let their_features = &peer_state.latest_features;
- let (shutdown_msg, mut monitor_update_opt, htlcs, local_shutdown_result) =
+ let (shutdown_msg, mut monitor_update_opt, htlcs) =
chan.get_shutdown(&self.signer_provider, their_features, target_feerate_sats_per_1000_weight, override_shutdown_script)?;
failed_htlcs = htlcs;
- shutdown_result = local_shutdown_result;
- debug_assert_eq!(shutdown_result.is_some(), chan.is_shutdown());
// We can send the `shutdown` message before updating the `ChannelMonitor`
// here as we don't need the monitor update to complete until we send a
if let Some(monitor_update) = monitor_update_opt.take() {
handle_new_monitor_update!(self, funding_txo_opt.unwrap(), monitor_update,
peer_state_lock, peer_state, per_peer_state, chan);
- break;
- }
-
- if chan.is_shutdown() {
- if let ChannelPhase::Funded(chan) = remove_channel_phase!(self, chan_phase_entry) {
- if let Ok(channel_update) = self.get_channel_update_for_broadcast(&chan) {
- peer_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
- msg: channel_update
- });
- }
- self.issue_channel_close_events(&chan.context, ClosureReason::HolderForceClosed);
- }
}
- break;
+ } else {
+ let mut chan_phase = remove_channel_phase!(self, chan_phase_entry);
+ shutdown_result = Some(chan_phase.context_mut().force_shutdown(false, ClosureReason::HolderForceClosed));
}
},
hash_map::Entry::Vacant(_) => {
- // If we reach this point, it means that the channel_id either refers to an unfunded channel or
- // it does not exist for this peer. Either way, we can attempt to force-close it.
- //
- // An appropriate error will be returned for non-existence of the channel if that's the case.
- mem::drop(peer_state_lock);
- mem::drop(per_peer_state);
- return self.force_close_channel_with_peer(&channel_id, counterparty_node_id, None, false).map(|_| ())
+ return Err(APIError::ChannelUnavailable {
+ err: format!(
+ "Channel with id {} not found for the passed counterparty node_id {}",
+ channel_id, counterparty_node_id,
+ )
+ });
},
}
}
debug_assert_ne!(peer.held_by_thread(), LockHeldState::HeldByThread);
}
- log_debug!(self.logger, "Finishing closure of channel with {} HTLCs to fail", shutdown_res.dropped_outbound_htlcs.len());
+ let logger = WithContext::from(
+ &self.logger, Some(shutdown_res.counterparty_node_id), Some(shutdown_res.channel_id),
+ );
+
+ log_debug!(logger, "Finishing closure of channel due to {} with {} HTLCs to fail",
+ shutdown_res.closure_reason, shutdown_res.dropped_outbound_htlcs.len());
for htlc_source in shutdown_res.dropped_outbound_htlcs.drain(..) {
let (source, payment_hash, counterparty_node_id, channel_id) = htlc_source;
let reason = HTLCFailReason::from_failure_code(0x4000 | 8);
let receiver = HTLCDestination::NextHopChannel { node_id: Some(counterparty_node_id), channel_id };
self.fail_htlc_backwards_internal(&source, &payment_hash, &reason, receiver);
}
- if let Some((_, funding_txo, monitor_update)) = shutdown_res.monitor_update {
+ if let Some((_, funding_txo, _channel_id, monitor_update)) = shutdown_res.monitor_update {
// There isn't anything we can do if we get an update failure - we're already
// force-closing. The monitor update on the required in-memory copy should broadcast
// the latest local state, which is the best we can do anyway. Thus, it is safe to
let mut peer_state = peer_state_mutex.lock().unwrap();
if let Some(mut chan) = peer_state.channel_by_id.remove(&channel_id) {
update_maps_on_chan_removal!(self, &chan.context());
- self.issue_channel_close_events(&chan.context(), ClosureReason::FundingBatchClosure);
- shutdown_results.push(chan.context_mut().force_shutdown(false));
+ shutdown_results.push(chan.context_mut().force_shutdown(false, ClosureReason::FundingBatchClosure));
}
}
has_uncompleted_channel = Some(has_uncompleted_channel.map_or(!state, |v| v || !state));
"Closing a batch where all channels have completed initial monitor update",
);
}
+
+ {
+ let mut pending_events = self.pending_events.lock().unwrap();
+ pending_events.push_back((events::Event::ChannelClosed {
+ channel_id: shutdown_res.channel_id,
+ user_channel_id: shutdown_res.user_channel_id,
+ reason: shutdown_res.closure_reason,
+ counterparty_node_id: Some(shutdown_res.counterparty_node_id),
+ channel_capacity_sats: Some(shutdown_res.channel_capacity_satoshis),
+ channel_funding_txo: shutdown_res.channel_funding_txo,
+ }, None));
+
+ if let Some(transaction) = shutdown_res.unbroadcasted_funding_tx {
+ pending_events.push_back((events::Event::DiscardFunding {
+ channel_id: shutdown_res.channel_id, transaction
+ }, None));
+ }
+ }
for shutdown_result in shutdown_results.drain(..) {
self.finish_close_channel(shutdown_result);
}
} else {
ClosureReason::HolderForceClosed
};
+ let logger = WithContext::from(&self.logger, Some(*peer_node_id), Some(*channel_id));
if let hash_map::Entry::Occupied(chan_phase_entry) = peer_state.channel_by_id.entry(channel_id.clone()) {
- log_error!(self.logger, "Force-closing channel {}", channel_id);
- self.issue_channel_close_events(&chan_phase_entry.get().context(), closure_reason);
+ log_error!(logger, "Force-closing channel {}", channel_id);
let mut chan_phase = remove_channel_phase!(self, chan_phase_entry);
mem::drop(peer_state);
mem::drop(per_peer_state);
match chan_phase {
ChannelPhase::Funded(mut chan) => {
- self.finish_close_channel(chan.context.force_shutdown(broadcast));
+ self.finish_close_channel(chan.context.force_shutdown(broadcast, closure_reason));
(self.get_channel_update_for_broadcast(&chan).ok(), chan.context.get_counterparty_node_id())
},
ChannelPhase::UnfundedOutboundV1(_) | ChannelPhase::UnfundedInboundV1(_) => {
- self.finish_close_channel(chan_phase.context_mut().force_shutdown(false));
+ self.finish_close_channel(chan_phase.context_mut().force_shutdown(false, closure_reason));
+ // Unfunded channel has no update
+ (None, chan_phase.context().get_counterparty_node_id())
+ },
+ // TODO(dual_funding): Combine this match arm with above once #[cfg(dual_funding)] is removed.
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedOutboundV2(_) | ChannelPhase::UnfundedInboundV2(_) => {
+ self.finish_close_channel(chan_phase.context_mut().force_shutdown(false, closure_reason));
// Unfunded channel has no update
(None, chan_phase.context().get_counterparty_node_id())
},
}
} else if peer_state.inbound_channel_request_by_id.remove(channel_id).is_some() {
- log_error!(self.logger, "Force-closing channel {}", &channel_id);
+ log_error!(logger, "Force-closing channel {}", &channel_id);
// N.B. that we don't send any channel close event here: we
// don't have a user_channel_id, and we never sent any opening
// events anyway.
}
};
if let Some(update) = update_opt {
- // Try to send the `BroadcastChannelUpdate` to the peer we just force-closed on, but if
- // not try to broadcast it via whatever peer we have.
- let per_peer_state = self.per_peer_state.read().unwrap();
- let a_peer_state_opt = per_peer_state.get(peer_node_id)
- .ok_or(per_peer_state.values().next());
- if let Ok(a_peer_state_mutex) = a_peer_state_opt {
- let mut a_peer_state = a_peer_state_mutex.lock().unwrap();
- a_peer_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
- msg: update
- });
- }
+ // If we have some Channel Update to broadcast, we cache it and broadcast it later.
+ let mut pending_broadcast_messages = self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ msg: update
+ });
}
Ok(counterparty_node_id)
/// the latest local transaction(s). Fails if `channel_id` is unknown to the manager, or if the
/// `counterparty_node_id` isn't the counterparty of the corresponding channel.
///
- /// You can always get the latest local transaction(s) to broadcast from
- /// [`ChannelMonitor::get_latest_holder_commitment_txn`].
+ /// You can always broadcast the latest local transaction(s) via
+ /// [`ChannelMonitor::broadcast_latest_holder_commitment_txn`].
pub fn force_close_without_broadcasting_txn(&self, channel_id: &ChannelId, counterparty_node_id: &PublicKey)
-> Result<(), APIError> {
self.force_close_sending_error(channel_id, counterparty_node_id, false)
}
}
+ fn can_forward_htlc_to_outgoing_channel(
+ &self, chan: &mut Channel<SP>, msg: &msgs::UpdateAddHTLC, next_packet: &NextPacketDetails
+ ) -> Result<(), (&'static str, u16, Option<msgs::ChannelUpdate>)> {
+ if !chan.context.should_announce() && !self.default_configuration.accept_forwards_to_priv_channels {
+ // Note that the behavior here should be identical to the above block - we
+ // should NOT reveal the existence or non-existence of a private channel if
+ // we don't allow forwards outbound over them.
+ return Err(("Refusing to forward to a private channel based on our config.", 0x4000 | 10, None));
+ }
+ if chan.context.get_channel_type().supports_scid_privacy() && next_packet.outgoing_scid != chan.context.outbound_scid_alias() {
+ // `option_scid_alias` (referred to in LDK as `scid_privacy`) means
+ // "refuse to forward unless the SCID alias was used", so we pretend
+ // we don't have the channel here.
+ return Err(("Refusing to forward over real channel SCID as our counterparty requested.", 0x4000 | 10, None));
+ }
+
+ // Note that we could technically not return an error yet here and just hope
+ // that the connection is reestablished or monitor updated by the time we get
+ // around to doing the actual forward, but better to fail early if we can and
+ // hopefully an attacker trying to path-trace payments cannot make this occur
+ // on a small/per-node/per-channel scale.
+ if !chan.context.is_live() { // channel_disabled
+ // If the channel_update we're going to return is disabled (i.e. the
+ // peer has been disabled for some time), return `channel_disabled`,
+ // otherwise return `temporary_channel_failure`.
+ let chan_update_opt = self.get_channel_update_for_onion(next_packet.outgoing_scid, chan).ok();
+ if chan_update_opt.as_ref().map(|u| u.contents.flags & 2 == 2).unwrap_or(false) {
+ return Err(("Forwarding channel has been disconnected for some time.", 0x1000 | 20, chan_update_opt));
+ } else {
+ return Err(("Forwarding channel is not in a ready state.", 0x1000 | 7, chan_update_opt));
+ }
+ }
+ if next_packet.outgoing_amt_msat < chan.context.get_counterparty_htlc_minimum_msat() { // amount_below_minimum
+ let chan_update_opt = self.get_channel_update_for_onion(next_packet.outgoing_scid, chan).ok();
+ return Err(("HTLC amount was below the htlc_minimum_msat", 0x1000 | 11, chan_update_opt));
+ }
+ if let Err((err, code)) = chan.htlc_satisfies_config(msg, next_packet.outgoing_amt_msat, next_packet.outgoing_cltv_value) {
+ let chan_update_opt = self.get_channel_update_for_onion(next_packet.outgoing_scid, chan).ok();
+ return Err((err, code, chan_update_opt));
+ }
+
+ Ok(())
+ }
+
+ /// Executes a callback `C` that returns some value `X` on the channel found with the given
+ /// `scid`. `None` is returned when the channel is not found.
+ fn do_funded_channel_callback<X, C: Fn(&mut Channel<SP>) -> X>(
+ &self, scid: u64, callback: C,
+ ) -> Option<X> {
+ let (counterparty_node_id, channel_id) = match self.short_to_chan_info.read().unwrap().get(&scid).cloned() {
+ None => return None,
+ Some((cp_id, id)) => (cp_id, id),
+ };
+ let per_peer_state = self.per_peer_state.read().unwrap();
+ let peer_state_mutex_opt = per_peer_state.get(&counterparty_node_id);
+ if peer_state_mutex_opt.is_none() {
+ return None;
+ }
+ let mut peer_state_lock = peer_state_mutex_opt.unwrap().lock().unwrap();
+ let peer_state = &mut *peer_state_lock;
+ match peer_state.channel_by_id.get_mut(&channel_id).and_then(
+ |chan_phase| if let ChannelPhase::Funded(chan) = chan_phase { Some(chan) } else { None }
+ ) {
+ None => None,
+ Some(chan) => Some(callback(chan)),
+ }
+ }
+
+ fn can_forward_htlc(
+ &self, msg: &msgs::UpdateAddHTLC, next_packet_details: &NextPacketDetails
+ ) -> Result<(), (&'static str, u16, Option<msgs::ChannelUpdate>)> {
+ match self.do_funded_channel_callback(next_packet_details.outgoing_scid, |chan: &mut Channel<SP>| {
+ self.can_forward_htlc_to_outgoing_channel(chan, msg, next_packet_details)
+ }) {
+ Some(Ok(())) => {},
+ Some(Err(e)) => return Err(e),
+ None => {
+ // If we couldn't find the channel info for the scid, it may be a phantom or
+ // intercept forward.
+ if (self.default_configuration.accept_intercept_htlcs &&
+ fake_scid::is_valid_intercept(&self.fake_scid_rand_bytes, next_packet_details.outgoing_scid, &self.chain_hash)) ||
+ fake_scid::is_valid_phantom(&self.fake_scid_rand_bytes, next_packet_details.outgoing_scid, &self.chain_hash)
+ {} else {
+ return Err(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
+ }
+ }
+ }
+
+ let cur_height = self.best_block.read().unwrap().height + 1;
+ if let Err((err_msg, err_code)) = check_incoming_htlc_cltv(
+ cur_height, next_packet_details.outgoing_cltv_value, msg.cltv_expiry
+ ) {
+ let chan_update_opt = self.do_funded_channel_callback(next_packet_details.outgoing_scid, |chan: &mut Channel<SP>| {
+ self.get_channel_update_for_onion(next_packet_details.outgoing_scid, chan).ok()
+ }).flatten();
+ return Err((err_msg, err_code, chan_update_opt));
+ }
+
+ Ok(())
+ }
+
+ fn htlc_failure_from_update_add_err(
+ &self, msg: &msgs::UpdateAddHTLC, counterparty_node_id: &PublicKey, err_msg: &'static str,
+ mut err_code: u16, chan_update: Option<msgs::ChannelUpdate>, is_intro_node_blinded_forward: bool,
+ shared_secret: &[u8; 32]
+ ) -> HTLCFailureMsg {
+ let mut res = VecWriter(Vec::with_capacity(chan_update.serialized_length() + 2 + 8 + 2));
+ if chan_update.is_some() && err_code & 0x1000 == 0x1000 {
+ let chan_update = chan_update.unwrap();
+ if err_code == 0x1000 | 11 || err_code == 0x1000 | 12 {
+ msg.amount_msat.write(&mut res).expect("Writes cannot fail");
+ }
+ else if err_code == 0x1000 | 13 {
+ msg.cltv_expiry.write(&mut res).expect("Writes cannot fail");
+ }
+ else if err_code == 0x1000 | 20 {
+ // TODO: underspecified, follow https://github.com/lightning/bolts/issues/791
+ 0u16.write(&mut res).expect("Writes cannot fail");
+ }
+ (chan_update.serialized_length() as u16 + 2).write(&mut res).expect("Writes cannot fail");
+ msgs::ChannelUpdate::TYPE.write(&mut res).expect("Writes cannot fail");
+ chan_update.write(&mut res).expect("Writes cannot fail");
+ } else if err_code & 0x1000 == 0x1000 {
+ // If we're trying to return an error that requires a `channel_update` but
+ // we're forwarding to a phantom or intercept "channel" (i.e. cannot
+ // generate an update), just use the generic "temporary_node_failure"
+ // instead.
+ err_code = 0x2000 | 2;
+ }
+
+ log_info!(
+ WithContext::from(&self.logger, Some(*counterparty_node_id), Some(msg.channel_id)),
+ "Failed to accept/forward incoming HTLC: {}", err_msg
+ );
+ // If `msg.blinding_point` is set, we must always fail with malformed.
+ if msg.blinding_point.is_some() {
+ return HTLCFailureMsg::Malformed(msgs::UpdateFailMalformedHTLC {
+ channel_id: msg.channel_id,
+ htlc_id: msg.htlc_id,
+ sha256_of_onion: [0; 32],
+ failure_code: INVALID_ONION_BLINDING,
+ });
+ }
+
+ let (err_code, err_data) = if is_intro_node_blinded_forward {
+ (INVALID_ONION_BLINDING, &[0; 32][..])
+ } else {
+ (err_code, &res.0[..])
+ };
+ HTLCFailureMsg::Relay(msgs::UpdateFailHTLC {
+ channel_id: msg.channel_id,
+ htlc_id: msg.htlc_id,
+ reason: HTLCFailReason::reason(err_code, err_data.to_vec())
+ .get_encrypted_failure_packet(shared_secret, &None),
+ })
+ }
+
fn decode_update_add_htlc_onion(
- &self, msg: &msgs::UpdateAddHTLC
+ &self, msg: &msgs::UpdateAddHTLC, counterparty_node_id: &PublicKey,
) -> Result<
(onion_utils::Hop, [u8; 32], Option<Result<PublicKey, secp256k1::Error>>), HTLCFailureMsg
> {
msg, &self.node_signer, &self.logger, &self.secp_ctx
)?;
- macro_rules! return_err {
- ($msg: expr, $err_code: expr, $data: expr) => {
- {
- log_info!(self.logger, "Failed to accept/forward incoming HTLC: {}", $msg);
- return Err(HTLCFailureMsg::Relay(msgs::UpdateFailHTLC {
- channel_id: msg.channel_id,
- htlc_id: msg.htlc_id,
- reason: HTLCFailReason::reason($err_code, $data.to_vec())
- .get_encrypted_failure_packet(&shared_secret, &None),
- }));
- }
- }
- }
-
- let NextPacketDetails {
- next_packet_pubkey, outgoing_amt_msat, outgoing_scid, outgoing_cltv_value
- } = match next_packet_details_opt {
+ let next_packet_details = match next_packet_details_opt {
Some(next_packet_details) => next_packet_details,
// it is a receive, so no need for outbound checks
None => return Ok((next_hop, shared_secret, None)),
// Perform outbound checks here instead of in [`Self::construct_pending_htlc_info`] because we
// can't hold the outbound peer state lock at the same time as the inbound peer state lock.
- if let Some((err, mut code, chan_update)) = loop {
- let id_option = self.short_to_chan_info.read().unwrap().get(&outgoing_scid).cloned();
- 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.
- if (self.default_configuration.accept_intercept_htlcs &&
- fake_scid::is_valid_intercept(&self.fake_scid_rand_bytes, outgoing_scid, &self.chain_hash)) ||
- fake_scid::is_valid_phantom(&self.fake_scid_rand_bytes, outgoing_scid, &self.chain_hash)
- {
- None
- } else {
- break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
- }
- },
- Some((cp_id, id)) => Some((cp_id.clone(), id.clone())),
- };
- 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();
- let peer_state_mutex_opt = per_peer_state.get(&counterparty_node_id);
- if peer_state_mutex_opt.is_none() {
- break Some(("Don't have available channel for forwarding as requested.", 0x4000 | 10, None));
- }
- let mut peer_state_lock = peer_state_mutex_opt.unwrap().lock().unwrap();
- let peer_state = &mut *peer_state_lock;
- let chan = match peer_state.channel_by_id.get_mut(&forwarding_id).map(
- |chan_phase| if let ChannelPhase::Funded(chan) = chan_phase { Some(chan) } else { None }
- ).flatten() {
- None => {
- // 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
- };
- if !chan.context.should_announce() && !self.default_configuration.accept_forwards_to_priv_channels {
- // Note that the behavior here should be identical to the above block - we
- // should NOT reveal the existence or non-existence of a private channel if
- // we don't allow forwards outbound over them.
- break Some(("Refusing to forward to a private channel based on our config.", 0x4000 | 10, None));
- }
- if chan.context.get_channel_type().supports_scid_privacy() && outgoing_scid != chan.context.outbound_scid_alias() {
- // `option_scid_alias` (referred to in LDK as `scid_privacy`) means
- // "refuse to forward unless the SCID alias was used", so we pretend
- // we don't have the channel here.
- break Some(("Refusing to forward over real channel SCID as our counterparty requested.", 0x4000 | 10, None));
- }
- let chan_update_opt = self.get_channel_update_for_onion(outgoing_scid, chan).ok();
-
- // Note that we could technically not return an error yet here and just hope
- // that the connection is reestablished or monitor updated by the time we get
- // around to doing the actual forward, but better to fail early if we can and
- // hopefully an attacker trying to path-trace payments cannot make this occur
- // on a small/per-node/per-channel scale.
- if !chan.context.is_live() { // channel_disabled
- // If the channel_update we're going to return is disabled (i.e. the
- // peer has been disabled for some time), return `channel_disabled`,
- // otherwise return `temporary_channel_failure`.
- if chan_update_opt.as_ref().map(|u| u.contents.flags & 2 == 2).unwrap_or(false) {
- break Some(("Forwarding channel has been disconnected for some time.", 0x1000 | 20, chan_update_opt));
- } else {
- break Some(("Forwarding channel is not in a ready state.", 0x1000 | 7, chan_update_opt));
- }
- }
- if outgoing_amt_msat < chan.context.get_counterparty_htlc_minimum_msat() { // amount_below_minimum
- break Some(("HTLC amount was below the htlc_minimum_msat", 0x1000 | 11, chan_update_opt));
- }
- if let Err((err, code)) = chan.htlc_satisfies_config(&msg, outgoing_amt_msat, outgoing_cltv_value) {
- break Some((err, code, chan_update_opt));
- }
- chan_update_opt
- } else {
- None
- };
-
- let cur_height = self.best_block.read().unwrap().height() + 1;
-
- if let Err((err_msg, code)) = check_incoming_htlc_cltv(
- cur_height, outgoing_cltv_value, msg.cltv_expiry
- ) {
- if code & 0x1000 != 0 && chan_update_opt.is_none() {
- // We really should set `incorrect_cltv_expiry` here but as we're not
- // forwarding over a real channel we can't generate a channel_update
- // for it. Instead we just return a generic temporary_node_failure.
- break Some((err_msg, 0x2000 | 2, None))
- }
- let chan_update_opt = if code & 0x1000 != 0 { chan_update_opt } else { None };
- break Some((err_msg, code, chan_update_opt));
- }
+ self.can_forward_htlc(&msg, &next_packet_details).map_err(|e| {
+ let (err_msg, err_code, chan_update_opt) = e;
+ self.htlc_failure_from_update_add_err(
+ msg, counterparty_node_id, err_msg, err_code, chan_update_opt,
+ next_hop.is_intro_node_blinded_forward(), &shared_secret
+ )
+ })?;
- break None;
- }
- {
- let mut res = VecWriter(Vec::with_capacity(chan_update.serialized_length() + 2 + 8 + 2));
- if let Some(chan_update) = chan_update {
- if code == 0x1000 | 11 || code == 0x1000 | 12 {
- msg.amount_msat.write(&mut res).expect("Writes cannot fail");
- }
- else if code == 0x1000 | 13 {
- msg.cltv_expiry.write(&mut res).expect("Writes cannot fail");
- }
- else if code == 0x1000 | 20 {
- // TODO: underspecified, follow https://github.com/lightning/bolts/issues/791
- 0u16.write(&mut res).expect("Writes cannot fail");
- }
- (chan_update.serialized_length() as u16 + 2).write(&mut res).expect("Writes cannot fail");
- msgs::ChannelUpdate::TYPE.write(&mut res).expect("Writes cannot fail");
- chan_update.write(&mut res).expect("Writes cannot fail");
- } else if code & 0x1000 == 0x1000 {
- // If we're trying to return an error that requires a `channel_update` but
- // we're forwarding to a phantom or intercept "channel" (i.e. cannot
- // generate an update), just use the generic "temporary_node_failure"
- // instead.
- code = 0x2000 | 2;
- }
- return_err!(err, code, &res.0[..]);
- }
- Ok((next_hop, shared_secret, Some(next_packet_pubkey)))
+ Ok((next_hop, shared_secret, Some(next_packet_details.next_packet_pubkey)))
}
fn construct_pending_htlc_status<'a>(
- &self, msg: &msgs::UpdateAddHTLC, shared_secret: [u8; 32], decoded_hop: onion_utils::Hop,
- allow_underpay: bool, next_packet_pubkey_opt: Option<Result<PublicKey, secp256k1::Error>>
+ &self, msg: &msgs::UpdateAddHTLC, counterparty_node_id: &PublicKey, shared_secret: [u8; 32],
+ decoded_hop: onion_utils::Hop, allow_underpay: bool,
+ next_packet_pubkey_opt: Option<Result<PublicKey, secp256k1::Error>>,
) -> PendingHTLCStatus {
macro_rules! return_err {
($msg: expr, $err_code: expr, $data: expr) => {
{
- log_info!(self.logger, "Failed to accept/forward incoming HTLC: {}", $msg);
+ let logger = WithContext::from(&self.logger, Some(*counterparty_node_id), Some(msg.channel_id));
+ log_info!(logger, "Failed to accept/forward incoming HTLC: {}", $msg);
+ if msg.blinding_point.is_some() {
+ return PendingHTLCStatus::Fail(HTLCFailureMsg::Malformed(
+ msgs::UpdateFailMalformedHTLC {
+ channel_id: msg.channel_id,
+ htlc_id: msg.htlc_id,
+ sha256_of_onion: [0; 32],
+ failure_code: INVALID_ONION_BLINDING,
+ }
+ ))
+ }
return PendingHTLCStatus::Fail(HTLCFailureMsg::Relay(msgs::UpdateFailHTLC {
channel_id: msg.channel_id,
htlc_id: msg.htlc_id,
match decoded_hop {
onion_utils::Hop::Receive(next_hop_data) => {
// OUR PAYMENT!
- let current_height: u32 = self.best_block.read().unwrap().height();
+ let current_height: u32 = self.best_block.read().unwrap().height;
match create_recv_pending_htlc_info(next_hop_data, shared_secret, msg.payment_hash,
msg.amount_msat, msg.cltv_expiry, None, allow_underpay, msg.skimmed_fee_msat,
current_height, self.default_configuration.accept_mpp_keysend)
// delay) once they've send us a commitment_signed!
PendingHTLCStatus::Forward(info)
},
- Err(InboundOnionErr { err_code, err_data, msg }) => return_err!(msg, err_code, &err_data)
+ Err(InboundHTLCErr { err_code, err_data, msg }) => return_err!(msg, err_code, &err_data)
}
},
onion_utils::Hop::Forward { next_hop_data, next_hop_hmac, new_packet_bytes } => {
match create_fwd_pending_htlc_info(msg, next_hop_data, next_hop_hmac,
new_packet_bytes, shared_secret, next_packet_pubkey_opt) {
Ok(info) => PendingHTLCStatus::Forward(info),
- Err(InboundOnionErr { err_code, err_data, msg }) => return_err!(msg, err_code, &err_data)
+ Err(InboundHTLCErr { err_code, err_data, msg }) => return_err!(msg, err_code, &err_data)
}
}
}
if chan.context.get_short_channel_id().is_none() {
return Err(LightningError{err: "Channel not yet established".to_owned(), action: msgs::ErrorAction::IgnoreError});
}
- log_trace!(self.logger, "Attempting to generate broadcast channel update for channel {}", &chan.context.channel_id());
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ log_trace!(logger, "Attempting to generate broadcast channel update for channel {}", &chan.context.channel_id());
self.get_channel_update_for_unicast(chan)
}
/// [`channel_update`]: msgs::ChannelUpdate
/// [`internal_closing_signed`]: Self::internal_closing_signed
fn get_channel_update_for_unicast(&self, chan: &Channel<SP>) -> Result<msgs::ChannelUpdate, LightningError> {
- log_trace!(self.logger, "Attempting to generate channel update for channel {}", &chan.context.channel_id());
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ log_trace!(logger, "Attempting to generate channel update for channel {}", chan.context.channel_id());
let short_channel_id = match chan.context.get_short_channel_id().or(chan.context.latest_inbound_scid_alias()) {
None => return Err(LightningError{err: "Channel not yet established".to_owned(), action: msgs::ErrorAction::IgnoreError}),
Some(id) => id,
}
fn get_channel_update_for_onion(&self, short_channel_id: u64, chan: &Channel<SP>) -> Result<msgs::ChannelUpdate, LightningError> {
- log_trace!(self.logger, "Generating channel update for channel {}", &chan.context.channel_id());
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ log_trace!(logger, "Generating channel update for channel {}", chan.context.channel_id());
let were_node_one = self.our_network_pubkey.serialize()[..] < chan.context.get_counterparty_node_id().serialize()[..];
let enabled = chan.context.is_usable() && match chan.channel_update_status() {
} = args;
// The top-level caller should hold the total_consistency_lock read lock.
debug_assert!(self.total_consistency_lock.try_write().is_err());
-
- log_trace!(self.logger,
- "Attempting to send payment with payment hash {} along path with next hop {}",
- payment_hash, path.hops.first().unwrap().short_channel_id);
let prng_seed = self.entropy_source.get_secure_random_bytes();
let session_priv = SecretKey::from_slice(&session_priv_bytes[..]).expect("RNG is busted");
let (onion_packet, htlc_msat, htlc_cltv) = onion_utils::create_payment_onion(
&self.secp_ctx, &path, &session_priv, total_value, recipient_onion, cur_height,
payment_hash, keysend_preimage, prng_seed
- )?;
+ ).map_err(|e| {
+ let logger = WithContext::from(&self.logger, Some(path.hops.first().unwrap().pubkey), None);
+ log_error!(logger, "Failed to build an onion for path for payment hash {}", payment_hash);
+ e
+ })?;
let err: Result<(), _> = loop {
let (counterparty_node_id, id) = match self.short_to_chan_info.read().unwrap().get(&path.hops.first().unwrap().short_channel_id) {
- None => return Err(APIError::ChannelUnavailable{err: "No channel available with first hop!".to_owned()}),
+ None => {
+ let logger = WithContext::from(&self.logger, Some(path.hops.first().unwrap().pubkey), None);
+ log_error!(logger, "Failed to find first-hop for payment hash {}", payment_hash);
+ return Err(APIError::ChannelUnavailable{err: "No channel available with first hop!".to_owned()})
+ },
Some((cp_id, chan_id)) => (cp_id.clone(), chan_id.clone()),
};
+ let logger = WithContext::from(&self.logger, Some(counterparty_node_id), Some(id));
+ log_trace!(logger,
+ "Attempting to send payment with payment hash {} along path with next hop {}",
+ payment_hash, path.hops.first().unwrap().short_channel_id);
+
let per_peer_state = self.per_peer_state.read().unwrap();
let peer_state_mutex = per_peer_state.get(&counterparty_node_id)
.ok_or_else(|| APIError::ChannelUnavailable{err: "No peer matching the path's first hop found!".to_owned() })?;
return Err(APIError::ChannelUnavailable{err: "Peer for first hop currently disconnected".to_owned()});
}
let funding_txo = chan.context.get_funding_txo().unwrap();
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
let send_res = chan.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,
- }, onion_packet, None, &self.fee_estimator, &self.logger);
+ }, onion_packet, None, &self.fee_estimator, &&logger);
match break_chan_phase_entry!(self, send_res, chan_phase_entry) {
Some(monitor_update) => {
match handle_new_monitor_update!(self, funding_txo, monitor_update, peer_state_lock, peer_state, per_peer_state, chan) {
}
return Ok(());
};
-
match handle_error!(self, err, path.hops.first().unwrap().pubkey) {
Ok(_) => unreachable!(),
Err(e) => {
/// [`PeerManager::process_events`]: crate::ln::peer_handler::PeerManager::process_events
/// [`ChannelMonitorUpdateStatus::InProgress`]: crate::chain::ChannelMonitorUpdateStatus::InProgress
pub fn send_payment_with_route(&self, route: &Route, payment_hash: PaymentHash, recipient_onion: RecipientOnionFields, payment_id: PaymentId) -> Result<(), PaymentSendFailure> {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
self.pending_outbound_payments
.send_payment_with_route(route, payment_hash, recipient_onion, payment_id,
/// Similar to [`ChannelManager::send_payment_with_route`], but will automatically find a route based on
/// `route_params` and retry failed payment paths based on `retry_strategy`.
pub fn send_payment(&self, payment_hash: PaymentHash, recipient_onion: RecipientOnionFields, payment_id: PaymentId, route_params: RouteParameters, retry_strategy: Retry) -> Result<(), RetryableSendFailure> {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
self.pending_outbound_payments
.send_payment(payment_hash, recipient_onion, payment_id, retry_strategy, route_params,
#[cfg(test)]
pub(super) fn test_send_payment_internal(&self, route: &Route, payment_hash: PaymentHash, recipient_onion: RecipientOnionFields, keysend_preimage: Option<PaymentPreimage>, payment_id: PaymentId, recv_value_msat: Option<u64>, onion_session_privs: Vec<[u8; 32]>) -> Result<(), PaymentSendFailure> {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
self.pending_outbound_payments.test_send_payment_internal(route, payment_hash, recipient_onion,
keysend_preimage, payment_id, recv_value_msat, onion_session_privs, &self.node_signer,
#[cfg(test)]
pub(crate) fn test_add_new_pending_payment(&self, payment_hash: PaymentHash, recipient_onion: RecipientOnionFields, payment_id: PaymentId, route: &Route) -> Result<Vec<[u8; 32]>, PaymentSendFailure> {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
self.pending_outbound_payments.test_add_new_pending_payment(payment_hash, recipient_onion, payment_id, route, None, &self.entropy_source, best_block_height)
}
}
pub(super) fn send_payment_for_bolt12_invoice(&self, invoice: &Bolt12Invoice, payment_id: PaymentId) -> Result<(), Bolt12PaymentError> {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
self.pending_outbound_payments
.send_payment_for_bolt12_invoice(
///
/// [`send_payment`]: Self::send_payment
pub fn send_spontaneous_payment(&self, route: &Route, payment_preimage: Option<PaymentPreimage>, recipient_onion: RecipientOnionFields, payment_id: PaymentId) -> Result<PaymentHash, PaymentSendFailure> {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
self.pending_outbound_payments.send_spontaneous_payment_with_route(
route, payment_preimage, recipient_onion, payment_id, &self.entropy_source,
///
/// [`PaymentParameters::for_keysend`]: crate::routing::router::PaymentParameters::for_keysend
pub fn send_spontaneous_payment_with_retry(&self, payment_preimage: Option<PaymentPreimage>, recipient_onion: RecipientOnionFields, payment_id: PaymentId, route_params: RouteParameters, retry_strategy: Retry) -> Result<PaymentHash, RetryableSendFailure> {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
self.pending_outbound_payments.send_spontaneous_payment(payment_preimage, recipient_onion,
payment_id, retry_strategy, route_params, &self.router, self.list_usable_channels(),
/// [`PaymentHash`] of probes based on a static secret and a random [`PaymentId`], which allows
/// us to easily discern them from real payments.
pub fn send_probe(&self, path: Path) -> Result<(PaymentHash, PaymentId), PaymentSendFailure> {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
self.pending_outbound_payments.send_probe(path, self.probing_cookie_secret,
&self.entropy_source, &self.node_signer, best_block_height,
ProbeSendFailure::RouteNotFound
})?;
- let mut used_liquidity_map = HashMap::with_capacity(first_hops.len());
+ let mut used_liquidity_map = hash_map_with_capacity(first_hops.len());
let mut res = Vec::new();
let mut peer_state_lock = peer_state_mutex.lock().unwrap();
let peer_state = &mut *peer_state_lock;
- let (chan, msg_opt) = match peer_state.channel_by_id.remove(temporary_channel_id) {
- Some(ChannelPhase::UnfundedOutboundV1(chan)) => {
- let funding_txo = find_funding_output(&chan, &funding_transaction)?;
+ let funding_txo;
+ let (mut chan, msg_opt) = match peer_state.channel_by_id.remove(temporary_channel_id) {
+ Some(ChannelPhase::UnfundedOutboundV1(mut chan)) => {
+ funding_txo = find_funding_output(&chan, &funding_transaction)?;
- let funding_res = chan.get_funding_created(funding_transaction, funding_txo, is_batch_funding, &self.logger)
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ let funding_res = chan.get_funding_created(funding_transaction, funding_txo, is_batch_funding, &&logger)
.map_err(|(mut chan, e)| if let ChannelError::Close(msg) = e {
let channel_id = chan.context.channel_id();
- let user_id = chan.context.get_user_id();
- let shutdown_res = chan.context.force_shutdown(false);
- let channel_capacity = chan.context.get_value_satoshis();
- (chan, MsgHandleErrInternal::from_finish_shutdown(msg, channel_id, user_id, shutdown_res, None, channel_capacity))
+ let reason = ClosureReason::ProcessingError { err: msg.clone() };
+ let shutdown_res = chan.context.force_shutdown(false, reason);
+ (chan, MsgHandleErrInternal::from_finish_shutdown(msg, channel_id, shutdown_res, None))
} else { unreachable!(); });
match funding_res {
- Ok((chan, funding_msg)) => (chan, funding_msg),
+ Ok(funding_msg) => (chan, funding_msg),
Err((chan, err)) => {
mem::drop(peer_state_lock);
mem::drop(per_peer_state);
-
let _: Result<(), _> = handle_error!(self, Err(err), chan.context.get_counterparty_node_id());
return Err(APIError::ChannelUnavailable {
err: "Signer refused to sign the initial commitment transaction".to_owned()
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.context.channel_id(), chan.context.get_counterparty_node_id()).is_some() {
- panic!("id_to_peer map already contained funding txid, which shouldn't be possible");
+ let mut outpoint_to_peer = self.outpoint_to_peer.lock().unwrap();
+ match outpoint_to_peer.entry(funding_txo) {
+ hash_map::Entry::Vacant(e) => { e.insert(chan.context.get_counterparty_node_id()); },
+ hash_map::Entry::Occupied(o) => {
+ let err = format!(
+ "An existing channel using outpoint {} is open with peer {}",
+ funding_txo, o.get()
+ );
+ mem::drop(outpoint_to_peer);
+ mem::drop(peer_state_lock);
+ mem::drop(per_peer_state);
+ let reason = ClosureReason::ProcessingError { err: err.clone() };
+ self.finish_close_channel(chan.context.force_shutdown(true, reason));
+ return Err(APIError::ChannelUnavailable { err });
+ }
}
- e.insert(ChannelPhase::Funded(chan));
+ e.insert(ChannelPhase::UnfundedOutboundV1(chan));
}
}
Ok(())
}));
}
{
- let height = self.best_block.read().unwrap().height();
+ let height = self.best_block.read().unwrap().height;
// Transactions are evaluated as final by network mempools if their locktime is strictly
// lower than the next block height. However, the modules constituting our Lightning
// node might not have perfect sync about their blockchain views. Thus, if the wallet
}
let outpoint = OutPoint { txid: tx.txid(), index: output_index.unwrap() };
if let Some(funding_batch_state) = funding_batch_state.as_mut() {
- funding_batch_state.push((outpoint.to_channel_id(), *counterparty_node_id, false));
+ // TODO(dual_funding): We only do batch funding for V1 channels at the moment, but we'll probably
+ // need to fix this somehow to not rely on using the outpoint for the channel ID if we
+ // want to support V2 batching here as well.
+ funding_batch_state.push((ChannelId::v1_from_funding_outpoint(outpoint), *counterparty_node_id, false));
}
Ok(outpoint)
})
.and_then(|mut peer_state| peer_state.channel_by_id.remove(&channel_id))
.map(|mut chan| {
update_maps_on_chan_removal!(self, &chan.context());
- self.issue_channel_close_events(&chan.context(), ClosureReason::ProcessingError { err: e.clone() });
- shutdown_results.push(chan.context_mut().force_shutdown(false));
+ let closure_reason = ClosureReason::ProcessingError { err: e.clone() };
+ shutdown_results.push(chan.context_mut().force_shutdown(false, closure_reason));
});
}
}
+ mem::drop(funding_batch_states);
for shutdown_result in shutdown_results.drain(..) {
self.finish_close_channel(shutdown_result);
}
.ok_or_else(|| APIError::ChannelUnavailable { err: format!("Can't find a peer matching the passed counterparty node_id {}", 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.has_channel(channel_id) {
return Err(APIError::ChannelUnavailable {
}
if let ChannelPhase::Funded(channel) = channel_phase {
if let Ok(msg) = self.get_channel_update_for_broadcast(channel) {
- peer_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate { msg });
+ let mut pending_broadcast_messages = self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate { msg });
} else if let Ok(msg) = self.get_channel_update_for_unicast(channel) {
peer_state.pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate {
node_id: channel.context.get_counterparty_node_id(),
None => {
let error = format!("Channel with id {} not found for the passed counterparty node_id {}",
next_hop_channel_id, next_node_id);
- log_error!(self.logger, "{} when attempting to forward intercepted HTLC", error);
+ let logger = WithContext::from(&self.logger, Some(next_node_id), Some(*next_hop_channel_id));
+ log_error!(logger, "{} when attempting to forward intercepted HTLC", error);
return Err(APIError::ChannelUnavailable {
err: error
})
})?;
let routing = match payment.forward_info.routing {
- PendingHTLCRouting::Forward { onion_packet, .. } => {
- PendingHTLCRouting::Forward { onion_packet, short_channel_id: next_hop_scid }
+ PendingHTLCRouting::Forward { onion_packet, blinded, .. } => {
+ PendingHTLCRouting::Forward {
+ onion_packet, blinded, short_channel_id: next_hop_scid
+ }
},
_ => unreachable!() // Only `PendingHTLCRouting::Forward`s are intercepted
};
let mut per_source_pending_forward = [(
payment.prev_short_channel_id,
payment.prev_funding_outpoint,
+ payment.prev_channel_id,
payment.prev_user_channel_id,
vec![(pending_htlc_info, payment.prev_htlc_id)]
)];
short_channel_id: payment.prev_short_channel_id,
user_channel_id: Some(payment.prev_user_channel_id),
outpoint: payment.prev_funding_outpoint,
+ channel_id: payment.prev_channel_id,
htlc_id: payment.prev_htlc_id,
incoming_packet_shared_secret: payment.forward_info.incoming_shared_secret,
phantom_shared_secret: None,
+ blinded_failure: payment.forward_info.routing.blinded_failure(),
});
let failure_reason = HTLCFailReason::from_failure_code(0x4000 | 10);
Ok(())
}
+ fn process_pending_update_add_htlcs(&self) {
+ let mut decode_update_add_htlcs = new_hash_map();
+ mem::swap(&mut decode_update_add_htlcs, &mut self.decode_update_add_htlcs.lock().unwrap());
+
+ let get_failed_htlc_destination = |outgoing_scid_opt: Option<u64>, payment_hash: PaymentHash| {
+ if let Some(outgoing_scid) = outgoing_scid_opt {
+ match self.short_to_chan_info.read().unwrap().get(&outgoing_scid) {
+ Some((outgoing_counterparty_node_id, outgoing_channel_id)) =>
+ HTLCDestination::NextHopChannel {
+ node_id: Some(*outgoing_counterparty_node_id),
+ channel_id: *outgoing_channel_id,
+ },
+ None => HTLCDestination::UnknownNextHop {
+ requested_forward_scid: outgoing_scid,
+ },
+ }
+ } else {
+ HTLCDestination::FailedPayment { payment_hash }
+ }
+ };
+
+ 'outer_loop: for (incoming_scid, update_add_htlcs) in decode_update_add_htlcs {
+ let incoming_channel_details_opt = self.do_funded_channel_callback(incoming_scid, |chan: &mut Channel<SP>| {
+ let counterparty_node_id = chan.context.get_counterparty_node_id();
+ let channel_id = chan.context.channel_id();
+ let funding_txo = chan.context.get_funding_txo().unwrap();
+ let user_channel_id = chan.context.get_user_id();
+ let accept_underpaying_htlcs = chan.context.config().accept_underpaying_htlcs;
+ (counterparty_node_id, channel_id, funding_txo, user_channel_id, accept_underpaying_htlcs)
+ });
+ let (
+ incoming_counterparty_node_id, incoming_channel_id, incoming_funding_txo,
+ incoming_user_channel_id, incoming_accept_underpaying_htlcs
+ ) = if let Some(incoming_channel_details) = incoming_channel_details_opt {
+ incoming_channel_details
+ } else {
+ // The incoming channel no longer exists, HTLCs should be resolved onchain instead.
+ continue;
+ };
+
+ let mut htlc_forwards = Vec::new();
+ let mut htlc_fails = Vec::new();
+ for update_add_htlc in &update_add_htlcs {
+ let (next_hop, shared_secret, next_packet_details_opt) = match decode_incoming_update_add_htlc_onion(
+ &update_add_htlc, &self.node_signer, &self.logger, &self.secp_ctx
+ ) {
+ Ok(decoded_onion) => decoded_onion,
+ Err(htlc_fail) => {
+ htlc_fails.push((htlc_fail, HTLCDestination::InvalidOnion));
+ continue;
+ },
+ };
+
+ let is_intro_node_blinded_forward = next_hop.is_intro_node_blinded_forward();
+ let outgoing_scid_opt = next_packet_details_opt.as_ref().map(|d| d.outgoing_scid);
+
+ // Process the HTLC on the incoming channel.
+ match self.do_funded_channel_callback(incoming_scid, |chan: &mut Channel<SP>| {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ chan.can_accept_incoming_htlc(
+ update_add_htlc, &self.fee_estimator, &logger,
+ )
+ }) {
+ Some(Ok(_)) => {},
+ Some(Err((err, code))) => {
+ let outgoing_chan_update_opt = if let Some(outgoing_scid) = outgoing_scid_opt.as_ref() {
+ self.do_funded_channel_callback(*outgoing_scid, |chan: &mut Channel<SP>| {
+ self.get_channel_update_for_onion(*outgoing_scid, chan).ok()
+ }).flatten()
+ } else {
+ None
+ };
+ let htlc_fail = self.htlc_failure_from_update_add_err(
+ &update_add_htlc, &incoming_counterparty_node_id, err, code,
+ outgoing_chan_update_opt, is_intro_node_blinded_forward, &shared_secret,
+ );
+ let htlc_destination = get_failed_htlc_destination(outgoing_scid_opt, update_add_htlc.payment_hash);
+ htlc_fails.push((htlc_fail, htlc_destination));
+ continue;
+ },
+ // The incoming channel no longer exists, HTLCs should be resolved onchain instead.
+ None => continue 'outer_loop,
+ }
+
+ // Now process the HTLC on the outgoing channel if it's a forward.
+ if let Some(next_packet_details) = next_packet_details_opt.as_ref() {
+ if let Err((err, code, chan_update_opt)) = self.can_forward_htlc(
+ &update_add_htlc, next_packet_details
+ ) {
+ let htlc_fail = self.htlc_failure_from_update_add_err(
+ &update_add_htlc, &incoming_counterparty_node_id, err, code,
+ chan_update_opt, is_intro_node_blinded_forward, &shared_secret,
+ );
+ let htlc_destination = get_failed_htlc_destination(outgoing_scid_opt, update_add_htlc.payment_hash);
+ htlc_fails.push((htlc_fail, htlc_destination));
+ continue;
+ }
+ }
+
+ match self.construct_pending_htlc_status(
+ &update_add_htlc, &incoming_counterparty_node_id, shared_secret, next_hop,
+ incoming_accept_underpaying_htlcs, next_packet_details_opt.map(|d| d.next_packet_pubkey),
+ ) {
+ PendingHTLCStatus::Forward(htlc_forward) => {
+ htlc_forwards.push((htlc_forward, update_add_htlc.htlc_id));
+ },
+ PendingHTLCStatus::Fail(htlc_fail) => {
+ let htlc_destination = get_failed_htlc_destination(outgoing_scid_opt, update_add_htlc.payment_hash);
+ htlc_fails.push((htlc_fail, htlc_destination));
+ },
+ }
+ }
+
+ // Process all of the forwards and failures for the channel in which the HTLCs were
+ // proposed to as a batch.
+ let pending_forwards = (incoming_scid, incoming_funding_txo, incoming_channel_id,
+ incoming_user_channel_id, htlc_forwards.drain(..).collect());
+ self.forward_htlcs_without_forward_event(&mut [pending_forwards]);
+ for (htlc_fail, htlc_destination) in htlc_fails.drain(..) {
+ let failure = match htlc_fail {
+ HTLCFailureMsg::Relay(fail_htlc) => HTLCForwardInfo::FailHTLC {
+ htlc_id: fail_htlc.htlc_id,
+ err_packet: fail_htlc.reason,
+ },
+ HTLCFailureMsg::Malformed(fail_malformed_htlc) => HTLCForwardInfo::FailMalformedHTLC {
+ htlc_id: fail_malformed_htlc.htlc_id,
+ sha256_of_onion: fail_malformed_htlc.sha256_of_onion,
+ failure_code: fail_malformed_htlc.failure_code,
+ },
+ };
+ self.forward_htlcs.lock().unwrap().entry(incoming_scid).or_insert(vec![]).push(failure);
+ self.pending_events.lock().unwrap().push_back((events::Event::HTLCHandlingFailed {
+ prev_channel_id: incoming_channel_id,
+ failed_next_destination: htlc_destination,
+ }, None));
+ }
+ }
+ }
+
/// Processes HTLCs which are pending waiting on random forward delay.
///
/// Should only really ever be called in response to a PendingHTLCsForwardable event.
pub fn process_pending_htlc_forwards(&self) {
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
+ self.process_pending_update_add_htlcs();
+
let mut new_events = VecDeque::new();
let mut failed_forwards = Vec::new();
- let mut phantom_receives: Vec<(u64, OutPoint, u128, Vec<(PendingHTLCInfo, u64)>)> = Vec::new();
+ let mut phantom_receives: Vec<(u64, OutPoint, ChannelId, u128, Vec<(PendingHTLCInfo, u64)>)> = Vec::new();
{
- let mut forward_htlcs = HashMap::new();
+ let mut forward_htlcs = new_hash_map();
mem::swap(&mut forward_htlcs, &mut self.forward_htlcs.lock().unwrap());
for (short_chan_id, mut pending_forwards) in forward_htlcs {
if short_chan_id != 0 {
+ let mut forwarding_counterparty = None;
macro_rules! forwarding_channel_not_found {
() => {
for forward_info in pending_forwards.drain(..) {
match forward_info {
HTLCForwardInfo::AddHTLC(PendingAddHTLCInfo {
- prev_short_channel_id, prev_htlc_id, prev_funding_outpoint, prev_user_channel_id,
- forward_info: PendingHTLCInfo {
+ prev_short_channel_id, prev_htlc_id, prev_channel_id, prev_funding_outpoint,
+ prev_user_channel_id, forward_info: PendingHTLCInfo {
routing, incoming_shared_secret, payment_hash, outgoing_amt_msat,
outgoing_cltv_value, ..
}
}) => {
macro_rules! failure_handler {
($msg: expr, $err_code: expr, $err_data: expr, $phantom_ss: expr, $next_hop_unknown: expr) => {
- log_info!(self.logger, "Failed to accept/forward incoming HTLC: {}", $msg);
+ let logger = WithContext::from(&self.logger, forwarding_counterparty, Some(prev_channel_id));
+ log_info!(logger, "Failed to accept/forward incoming HTLC: {}", $msg);
let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData {
short_channel_id: prev_short_channel_id,
user_channel_id: Some(prev_user_channel_id),
+ channel_id: prev_channel_id,
outpoint: prev_funding_outpoint,
htlc_id: prev_htlc_id,
incoming_packet_shared_secret: incoming_shared_secret,
phantom_shared_secret: $phantom_ss,
+ blinded_failure: routing.blinded_failure(),
});
let reason = if $next_hop_unknown {
}
}
}
- if let PendingHTLCRouting::Forward { onion_packet, .. } = routing {
+ if let PendingHTLCRouting::Forward { ref onion_packet, .. } = routing {
let phantom_pubkey_res = self.node_signer.get_node_id(Recipient::PhantomNode);
if phantom_pubkey_res.is_ok() && fake_scid::is_valid_phantom(&self.fake_scid_rand_bytes, short_chan_id, &self.chain_hash) {
let phantom_shared_secret = self.node_signer.ecdh(Recipient::PhantomNode, &onion_packet.public_key.unwrap(), None).unwrap().secret_bytes();
let next_hop = match onion_utils::decode_next_payment_hop(
phantom_shared_secret, &onion_packet.hop_data, onion_packet.hmac,
- payment_hash, &self.node_signer
+ payment_hash, None, &self.node_signer
) {
Ok(res) => res,
Err(onion_utils::OnionDecodeErr::Malformed { err_msg, err_code }) => {
};
match next_hop {
onion_utils::Hop::Receive(hop_data) => {
- let current_height: u32 = self.best_block.read().unwrap().height();
+ let current_height: u32 = self.best_block.read().unwrap().height;
match create_recv_pending_htlc_info(hop_data,
incoming_shared_secret, payment_hash, outgoing_amt_msat,
outgoing_cltv_value, Some(phantom_shared_secret), false, None,
current_height, self.default_configuration.accept_mpp_keysend)
{
- Ok(info) => phantom_receives.push((prev_short_channel_id, prev_funding_outpoint, prev_user_channel_id, vec![(info, prev_htlc_id)])),
- Err(InboundOnionErr { err_code, err_data, msg }) => failed_payment!(msg, err_code, err_data, Some(phantom_shared_secret))
+ Ok(info) => phantom_receives.push((prev_short_channel_id, prev_funding_outpoint, prev_channel_id, prev_user_channel_id, vec![(info, prev_htlc_id)])),
+ Err(InboundHTLCErr { err_code, err_data, msg }) => failed_payment!(msg, err_code, err_data, Some(phantom_shared_secret))
}
},
_ => panic!(),
fail_forward!(format!("Unknown short channel id {} for forward HTLC", short_chan_id), 0x4000 | 10, Vec::new(), None);
}
},
- HTLCForwardInfo::FailHTLC { .. } => {
+ HTLCForwardInfo::FailHTLC { .. } | HTLCForwardInfo::FailMalformedHTLC { .. } => {
// Channel went away before we could fail it. This implies
// the channel is now on chain and our counterparty is
// trying to broadcast the HTLC-Timeout, but that's their
continue;
}
};
+ forwarding_counterparty = Some(counterparty_node_id);
let per_peer_state = self.per_peer_state.read().unwrap();
let peer_state_mutex_opt = per_peer_state.get(&counterparty_node_id);
if peer_state_mutex_opt.is_none() {
let mut peer_state_lock = peer_state_mutex_opt.unwrap().lock().unwrap();
let peer_state = &mut *peer_state_lock;
if let Some(ChannelPhase::Funded(ref mut chan)) = peer_state.channel_by_id.get_mut(&forward_chan_id) {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
for forward_info in pending_forwards.drain(..) {
- match forward_info {
+ let queue_fail_htlc_res = match forward_info {
HTLCForwardInfo::AddHTLC(PendingAddHTLCInfo {
- prev_short_channel_id, prev_htlc_id, prev_funding_outpoint, prev_user_channel_id,
- forward_info: PendingHTLCInfo {
+ prev_short_channel_id, prev_htlc_id, prev_channel_id, prev_funding_outpoint,
+ prev_user_channel_id, forward_info: PendingHTLCInfo {
incoming_shared_secret, payment_hash, outgoing_amt_msat, outgoing_cltv_value,
- routing: PendingHTLCRouting::Forward { onion_packet, .. }, skimmed_fee_msat, ..
+ routing: PendingHTLCRouting::Forward {
+ onion_packet, blinded, ..
+ }, skimmed_fee_msat, ..
},
}) => {
- log_trace!(self.logger, "Adding HTLC from short id {} with payment_hash {} to channel with short id {} after delay", prev_short_channel_id, &payment_hash, short_chan_id);
+ log_trace!(logger, "Adding HTLC from short id {} with payment_hash {} to channel with short id {} after delay", prev_short_channel_id, &payment_hash, short_chan_id);
let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData {
short_channel_id: prev_short_channel_id,
user_channel_id: Some(prev_user_channel_id),
+ channel_id: prev_channel_id,
outpoint: prev_funding_outpoint,
htlc_id: prev_htlc_id,
incoming_packet_shared_secret: incoming_shared_secret,
// Phantom payments are only PendingHTLCRouting::Receive.
phantom_shared_secret: None,
+ blinded_failure: blinded.map(|b| b.failure),
+ });
+ let next_blinding_point = blinded.and_then(|b| {
+ let encrypted_tlvs_ss = self.node_signer.ecdh(
+ Recipient::Node, &b.inbound_blinding_point, None
+ ).unwrap().secret_bytes();
+ onion_utils::next_hop_pubkey(
+ &self.secp_ctx, b.inbound_blinding_point, &encrypted_tlvs_ss
+ ).ok()
});
if let Err(e) = chan.queue_add_htlc(outgoing_amt_msat,
payment_hash, outgoing_cltv_value, htlc_source.clone(),
- onion_packet, skimmed_fee_msat, &self.fee_estimator,
- &self.logger)
+ onion_packet, skimmed_fee_msat, next_blinding_point, &self.fee_estimator,
+ &&logger)
{
if let ChannelError::Ignore(msg) = e {
- log_trace!(self.logger, "Failed to forward HTLC with payment_hash {}: {}", &payment_hash, msg);
+ log_trace!(logger, "Failed to forward HTLC with payment_hash {}: {}", &payment_hash, msg);
} else {
panic!("Stated return value requirements in send_htlc() were not met");
}
));
continue;
}
+ None
},
HTLCForwardInfo::AddHTLC { .. } => {
panic!("short_channel_id != 0 should imply any pending_forward entries are of type Forward");
},
HTLCForwardInfo::FailHTLC { htlc_id, err_packet } => {
- log_trace!(self.logger, "Failing HTLC back to channel with short id {} (backward HTLC ID {}) after delay", short_chan_id, htlc_id);
- if let Err(e) = chan.queue_fail_htlc(
- htlc_id, err_packet, &self.logger
- ) {
- if let ChannelError::Ignore(msg) = e {
- log_trace!(self.logger, "Failed to fail HTLC with ID {} backwards to short_id {}: {}", htlc_id, short_chan_id, msg);
- } else {
- panic!("Stated return value requirements in queue_fail_htlc() were not met");
- }
- // fail-backs are best-effort, we probably already have one
- // pending, and if not that's OK, if not, the channel is on
- // the chain and sending the HTLC-Timeout is their problem.
- continue;
- }
+ log_trace!(logger, "Failing HTLC back to channel with short id {} (backward HTLC ID {}) after delay", short_chan_id, htlc_id);
+ Some((chan.queue_fail_htlc(htlc_id, err_packet, &&logger), htlc_id))
},
+ HTLCForwardInfo::FailMalformedHTLC { htlc_id, failure_code, sha256_of_onion } => {
+ log_trace!(logger, "Failing malformed HTLC back to channel with short id {} (backward HTLC ID {}) after delay", short_chan_id, htlc_id);
+ let res = chan.queue_fail_malformed_htlc(
+ htlc_id, failure_code, sha256_of_onion, &&logger
+ );
+ Some((res, htlc_id))
+ },
+ };
+ if let Some((queue_fail_htlc_res, htlc_id)) = queue_fail_htlc_res {
+ if let Err(e) = queue_fail_htlc_res {
+ if let ChannelError::Ignore(msg) = e {
+ log_trace!(logger, "Failed to fail HTLC with ID {} backwards to short_id {}: {}", htlc_id, short_chan_id, msg);
+ } else {
+ panic!("Stated return value requirements in queue_fail_{{malformed_}}htlc() were not met");
+ }
+ // fail-backs are best-effort, we probably already have one
+ // pending, and if not that's OK, if not, the channel is on
+ // the chain and sending the HTLC-Timeout is their problem.
+ continue;
+ }
}
}
} else {
'next_forwardable_htlc: for forward_info in pending_forwards.drain(..) {
match forward_info {
HTLCForwardInfo::AddHTLC(PendingAddHTLCInfo {
- prev_short_channel_id, prev_htlc_id, prev_funding_outpoint, prev_user_channel_id,
- forward_info: PendingHTLCInfo {
+ prev_short_channel_id, prev_htlc_id, prev_channel_id, prev_funding_outpoint,
+ prev_user_channel_id, forward_info: PendingHTLCInfo {
routing, incoming_shared_secret, payment_hash, incoming_amt_msat, outgoing_amt_msat,
skimmed_fee_msat, ..
}
}) => {
+ let blinded_failure = routing.blinded_failure();
let (cltv_expiry, onion_payload, payment_data, phantom_shared_secret, mut onion_fields) = match routing {
- PendingHTLCRouting::Receive { payment_data, payment_metadata, incoming_cltv_expiry, phantom_shared_secret, custom_tlvs } => {
+ PendingHTLCRouting::Receive {
+ payment_data, payment_metadata, incoming_cltv_expiry, phantom_shared_secret,
+ custom_tlvs, requires_blinded_error: _
+ } => {
let _legacy_hop_data = Some(payment_data.clone());
let onion_fields = RecipientOnionFields { payment_secret: Some(payment_data.payment_secret),
payment_metadata, custom_tlvs };
(incoming_cltv_expiry, OnionPayload::Invoice { _legacy_hop_data },
Some(payment_data), phantom_shared_secret, onion_fields)
},
- PendingHTLCRouting::ReceiveKeysend { payment_data, payment_preimage, payment_metadata, incoming_cltv_expiry, custom_tlvs } => {
+ PendingHTLCRouting::ReceiveKeysend {
+ payment_data, payment_preimage, payment_metadata,
+ incoming_cltv_expiry, custom_tlvs, requires_blinded_error: _
+ } => {
let onion_fields = RecipientOnionFields {
payment_secret: payment_data.as_ref().map(|data| data.payment_secret),
payment_metadata,
prev_hop: HTLCPreviousHopData {
short_channel_id: prev_short_channel_id,
user_channel_id: Some(prev_user_channel_id),
+ channel_id: prev_channel_id,
outpoint: prev_funding_outpoint,
htlc_id: prev_htlc_id,
incoming_packet_shared_secret: incoming_shared_secret,
phantom_shared_secret,
+ blinded_failure,
},
// We differentiate the received value from the sender intended value
// if possible so that we don't prematurely mark MPP payments complete
debug_assert!(!committed_to_claimable);
let mut htlc_msat_height_data = $htlc.value.to_be_bytes().to_vec();
htlc_msat_height_data.extend_from_slice(
- &self.best_block.read().unwrap().height().to_be_bytes(),
+ &self.best_block.read().unwrap().height.to_be_bytes(),
);
failed_forwards.push((HTLCSource::PreviousHopData(HTLCPreviousHopData {
short_channel_id: $htlc.prev_hop.short_channel_id,
user_channel_id: $htlc.prev_hop.user_channel_id,
+ channel_id: prev_channel_id,
outpoint: prev_funding_outpoint,
htlc_id: $htlc.prev_hop.htlc_id,
incoming_packet_shared_secret: $htlc.prev_hop.incoming_packet_shared_secret,
phantom_shared_secret,
+ blinded_failure,
}), payment_hash,
HTLCFailReason::reason(0x4000 | 15, htlc_msat_height_data),
HTLCDestination::FailedPayment { payment_hash: $payment_hash },
#[allow(unused_assignments)] {
committed_to_claimable = true;
}
- let prev_channel_id = prev_funding_outpoint.to_channel_id();
htlcs.push(claimable_htlc);
let amount_msat = htlcs.iter().map(|htlc| htlc.value).sum();
htlcs.iter_mut().for_each(|htlc| htlc.total_value_received = Some(amount_msat));
}
};
if let Some(min_final_cltv_expiry_delta) = min_final_cltv_expiry_delta {
- let expected_min_expiry_height = (self.current_best_block().height() + min_final_cltv_expiry_delta as u32) as u64;
+ let expected_min_expiry_height = (self.current_best_block().height + min_final_cltv_expiry_delta as u32) as u64;
if (cltv_expiry as u64) < expected_min_expiry_height {
log_trace!(self.logger, "Failing new HTLC with payment_hash {} as its CLTV expiry was too soon (had {}, earliest expected {})",
&payment_hash, cltv_expiry, expected_min_expiry_height);
},
};
},
- HTLCForwardInfo::FailHTLC { .. } => {
+ HTLCForwardInfo::FailHTLC { .. } | HTLCForwardInfo::FailMalformedHTLC { .. } => {
panic!("Got pending fail of our own HTLC");
}
}
}
}
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
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, |args| self.send_payment_along_path(args));
for event in background_events.drain(..) {
match event {
- BackgroundEvent::ClosedMonitorUpdateRegeneratedOnStartup((funding_txo, update)) => {
+ BackgroundEvent::ClosedMonitorUpdateRegeneratedOnStartup((funding_txo, _channel_id, update)) => {
// The channel has already been closed, so no use bothering to care about the
// monitor updating completing.
let _ = self.chain_monitor.update_channel(funding_txo, &update);
},
- BackgroundEvent::MonitorUpdateRegeneratedOnStartup { counterparty_node_id, funding_txo, update } => {
+ BackgroundEvent::MonitorUpdateRegeneratedOnStartup { counterparty_node_id, funding_txo, channel_id, update } => {
let mut updated_chan = false;
{
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(funding_txo.to_channel_id()) {
+ match peer_state.channel_by_id.entry(channel_id) {
hash_map::Entry::Occupied(mut chan_phase) => {
if let ChannelPhase::Funded(chan) = chan_phase.get_mut() {
updated_chan = true;
fn update_channel_fee(&self, chan_id: &ChannelId, chan: &mut Channel<SP>, new_feerate: u32) -> NotifyOption {
if !chan.context.is_outbound() { return NotifyOption::SkipPersistNoEvents; }
+
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+
// If the feerate has decreased by less than half, don't bother
if new_feerate <= chan.context.get_feerate_sat_per_1000_weight() && new_feerate * 2 > chan.context.get_feerate_sat_per_1000_weight() {
- if new_feerate != chan.context.get_feerate_sat_per_1000_weight() {
- log_trace!(self.logger, "Channel {} does not qualify for a feerate change from {} to {}.",
- chan_id, chan.context.get_feerate_sat_per_1000_weight(), new_feerate);
- }
return NotifyOption::SkipPersistNoEvents;
}
if !chan.context.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_trace!(logger, "Channel {} does not qualify for a feerate change from {} to {} as it cannot currently be updated (probably the peer is disconnected).",
chan_id, chan.context.get_feerate_sat_per_1000_weight(), new_feerate);
return NotifyOption::SkipPersistNoEvents;
}
- log_trace!(self.logger, "Channel {} qualifies for a feerate change from {} to {}.",
+ log_trace!(logger, "Channel {} qualifies for a feerate change from {} to {}.",
&chan_id, chan.context.get_feerate_sat_per_1000_weight(), new_feerate);
- chan.queue_update_fee(new_feerate, &self.fee_estimator, &self.logger);
+ chan.queue_update_fee(new_feerate, &self.fee_estimator, &&logger);
NotifyOption::DoPersist
}
| {
context.maybe_expire_prev_config();
if unfunded_context.should_expire_unfunded_channel() {
- log_error!(self.logger,
+ let logger = WithChannelContext::from(&self.logger, context);
+ log_error!(logger,
"Force-closing pending channel with ID {} for not establishing in a timely manner", chan_id);
update_maps_on_chan_removal!(self, &context);
- self.issue_channel_close_events(&context, ClosureReason::HolderForceClosed);
- shutdown_channels.push(context.force_shutdown(false));
+ shutdown_channels.push(context.force_shutdown(false, ClosureReason::HolderForceClosed));
pending_msg_events.push(MessageSendEvent::HandleError {
node_id: counterparty_node_id,
action: msgs::ErrorAction::SendErrorMessage {
if n >= DISABLE_GOSSIP_TICKS {
chan.set_channel_update_status(ChannelUpdateStatus::Disabled);
if let Ok(update) = self.get_channel_update_for_broadcast(&chan) {
- pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ let mut pending_broadcast_messages = self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate {
msg: update
});
}
if n >= ENABLE_GOSSIP_TICKS {
chan.set_channel_update_status(ChannelUpdateStatus::Enabled);
if let Ok(update) = self.get_channel_update_for_broadcast(&chan) {
- pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ let mut pending_broadcast_messages = self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate {
msg: update
});
}
chan.context.maybe_expire_prev_config();
if chan.should_disconnect_peer_awaiting_response() {
- log_debug!(self.logger, "Disconnecting peer {} due to not making any progress on channel {}",
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ log_debug!(logger, "Disconnecting peer {} due to not making any progress on channel {}",
counterparty_node_id, chan_id);
pending_msg_events.push(MessageSendEvent::HandleError {
node_id: counterparty_node_id,
process_unfunded_channel_tick(chan_id, &mut chan.context, &mut chan.unfunded_context,
pending_msg_events, counterparty_node_id)
},
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedInboundV2(chan) => {
+ process_unfunded_channel_tick(chan_id, &mut chan.context, &mut chan.unfunded_context,
+ pending_msg_events, counterparty_node_id)
+ },
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedOutboundV2(chan) => {
+ process_unfunded_channel_tick(chan_id, &mut chan.context, &mut chan.unfunded_context,
+ pending_msg_events, counterparty_node_id)
+ },
}
});
for (chan_id, req) in peer_state.inbound_channel_request_by_id.iter_mut() {
if { req.ticks_remaining -= 1 ; req.ticks_remaining } <= 0 {
- log_error!(self.logger, "Force-closing unaccepted inbound channel {} for not accepting in a timely manner", &chan_id);
+ let logger = WithContext::from(&self.logger, Some(counterparty_node_id), Some(*chan_id));
+ log_error!(logger, "Force-closing unaccepted inbound channel {} for not accepting in a timely manner", &chan_id);
peer_state.pending_msg_events.push(
events::MessageSendEvent::HandleError {
node_id: counterparty_node_id,
FailureCode::RequiredNodeFeatureMissing => HTLCFailReason::from_failure_code(failure_code.into()),
FailureCode::IncorrectOrUnknownPaymentDetails => {
let mut htlc_msat_height_data = htlc.value.to_be_bytes().to_vec();
- htlc_msat_height_data.extend_from_slice(&self.best_block.read().unwrap().height().to_be_bytes());
+ htlc_msat_height_data.extend_from_slice(&self.best_block.read().unwrap().height.to_be_bytes());
HTLCFailReason::reason(failure_code.into(), htlc_msat_height_data)
},
FailureCode::InvalidOnionPayload(data) => {
}
}
+ fn fail_htlc_backwards_internal(&self, source: &HTLCSource, payment_hash: &PaymentHash, onion_error: &HTLCFailReason, destination: HTLCDestination) {
+ let push_forward_event = self.fail_htlc_backwards_internal_without_forward_event(source, payment_hash, onion_error, destination);
+ if push_forward_event { self.push_pending_forwards_ev(); }
+ }
+
/// Fails an HTLC backwards to the sender of it to us.
/// Note that we do not assume that channels corresponding to failed HTLCs are still available.
- fn fail_htlc_backwards_internal(&self, source: &HTLCSource, payment_hash: &PaymentHash, onion_error: &HTLCFailReason, destination: HTLCDestination) {
+ fn fail_htlc_backwards_internal_without_forward_event(&self, source: &HTLCSource, payment_hash: &PaymentHash, onion_error: &HTLCFailReason, destination: HTLCDestination) -> bool {
// Ensure that no peer state channel storage lock is 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 `per_peer_state` peer locks, which calling
// Note that we MUST NOT end up calling methods on self.chain_monitor here - we're called
// from block_connected which may run during initialization prior to the chain_monitor
// being fully configured. See the docs for `ChannelManagerReadArgs` for more.
+ let mut push_forward_event;
match source {
HTLCSource::OutboundRoute { ref path, ref session_priv, ref payment_id, .. } => {
- if self.pending_outbound_payments.fail_htlc(source, payment_hash, onion_error, path,
+ push_forward_event = self.pending_outbound_payments.fail_htlc(source, payment_hash, onion_error, path,
session_priv, payment_id, self.probing_cookie_secret, &self.secp_ctx,
- &self.pending_events, &self.logger)
- { self.push_pending_forwards_ev(); }
+ &self.pending_events, &self.logger);
},
- HTLCSource::PreviousHopData(HTLCPreviousHopData { ref short_channel_id, ref htlc_id, ref incoming_packet_shared_secret, ref phantom_shared_secret, ref outpoint, .. }) => {
- log_trace!(self.logger, "Failing HTLC with payment_hash {} backwards from us with {:?}", &payment_hash, onion_error);
- let err_packet = onion_error.get_encrypted_failure_packet(incoming_packet_shared_secret, phantom_shared_secret);
+ HTLCSource::PreviousHopData(HTLCPreviousHopData {
+ ref short_channel_id, ref htlc_id, ref incoming_packet_shared_secret,
+ ref phantom_shared_secret, outpoint: _, ref blinded_failure, ref channel_id, ..
+ }) => {
+ log_trace!(
+ WithContext::from(&self.logger, None, Some(*channel_id)),
+ "Failing {}HTLC with payment_hash {} backwards from us: {:?}",
+ if blinded_failure.is_some() { "blinded " } else { "" }, &payment_hash, onion_error
+ );
+ let failure = match blinded_failure {
+ Some(BlindedFailure::FromIntroductionNode) => {
+ let blinded_onion_error = HTLCFailReason::reason(INVALID_ONION_BLINDING, vec![0; 32]);
+ let err_packet = blinded_onion_error.get_encrypted_failure_packet(
+ incoming_packet_shared_secret, phantom_shared_secret
+ );
+ HTLCForwardInfo::FailHTLC { htlc_id: *htlc_id, err_packet }
+ },
+ Some(BlindedFailure::FromBlindedNode) => {
+ HTLCForwardInfo::FailMalformedHTLC {
+ htlc_id: *htlc_id,
+ failure_code: INVALID_ONION_BLINDING,
+ sha256_of_onion: [0; 32]
+ }
+ },
+ None => {
+ let err_packet = onion_error.get_encrypted_failure_packet(
+ incoming_packet_shared_secret, phantom_shared_secret
+ );
+ HTLCForwardInfo::FailHTLC { htlc_id: *htlc_id, err_packet }
+ }
+ };
- let mut push_forward_ev = false;
+ push_forward_event = self.decode_update_add_htlcs.lock().unwrap().is_empty();
let mut forward_htlcs = self.forward_htlcs.lock().unwrap();
- if forward_htlcs.is_empty() {
- push_forward_ev = true;
- }
+ push_forward_event &= forward_htlcs.is_empty();
match forward_htlcs.entry(*short_channel_id) {
hash_map::Entry::Occupied(mut entry) => {
- entry.get_mut().push(HTLCForwardInfo::FailHTLC { htlc_id: *htlc_id, err_packet });
+ entry.get_mut().push(failure);
},
hash_map::Entry::Vacant(entry) => {
- entry.insert(vec!(HTLCForwardInfo::FailHTLC { htlc_id: *htlc_id, err_packet }));
+ entry.insert(vec!(failure));
}
}
mem::drop(forward_htlcs);
- if push_forward_ev { self.push_pending_forwards_ev(); }
let mut pending_events = self.pending_events.lock().unwrap();
pending_events.push_back((events::Event::HTLCHandlingFailed {
- prev_channel_id: outpoint.to_channel_id(),
+ prev_channel_id: *channel_id,
failed_next_destination: destination,
}, None));
},
}
+ push_forward_event
}
/// Provides a payment preimage in response to [`Event::PaymentClaimable`], generating any
}
if valid_mpp {
for htlc in sources.drain(..) {
+ let prev_hop_chan_id = htlc.prev_hop.channel_id;
if let Err((pk, err)) = self.claim_funds_from_hop(
htlc.prev_hop, payment_preimage,
|_, definitely_duplicate| {
if let msgs::ErrorAction::IgnoreError = err.err.action {
// We got a temporary failure updating monitor, but will claim the
// HTLC when the monitor updating is restored (or on chain).
- log_error!(self.logger, "Temporary failure claiming HTLC, treating as success: {}", err.err.err);
+ let logger = WithContext::from(&self.logger, None, Some(prev_hop_chan_id));
+ log_error!(logger, "Temporary failure claiming HTLC, treating as success: {}", err.err.err);
} else { errs.push((pk, err)); }
}
}
if !valid_mpp {
for htlc in sources.drain(..) {
let mut htlc_msat_height_data = htlc.value.to_be_bytes().to_vec();
- htlc_msat_height_data.extend_from_slice(&self.best_block.read().unwrap().height().to_be_bytes());
+ htlc_msat_height_data.extend_from_slice(&self.best_block.read().unwrap().height.to_be_bytes());
let source = HTLCSource::PreviousHopData(htlc.prev_hop);
let reason = HTLCFailReason::reason(0x4000 | 15, htlc_msat_height_data);
let receiver = HTLCDestination::FailedPayment { payment_hash };
{
let per_peer_state = self.per_peer_state.read().unwrap();
- let chan_id = prev_hop.outpoint.to_channel_id();
+ let chan_id = prev_hop.channel_id;
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
if let hash_map::Entry::Occupied(mut chan_phase_entry) = peer_state.channel_by_id.entry(chan_id) {
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
let counterparty_node_id = chan.context.get_counterparty_node_id();
- let fulfill_res = chan.get_update_fulfill_htlc_and_commit(prev_hop.htlc_id, payment_preimage, &self.logger);
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ let fulfill_res = chan.get_update_fulfill_htlc_and_commit(prev_hop.htlc_id, payment_preimage, &&logger);
match fulfill_res {
UpdateFulfillCommitFetch::NewClaim { htlc_value_msat, monitor_update } => {
if let Some(action) = completion_action(Some(htlc_value_msat), false) {
- log_trace!(self.logger, "Tracking monitor update completion action for channel {}: {:?}",
+ log_trace!(logger, "Tracking monitor update completion action for channel {}: {:?}",
chan_id, action);
peer_state.monitor_update_blocked_actions.entry(chan_id).or_insert(Vec::new()).push(action);
}
BackgroundEvent::MonitorUpdateRegeneratedOnStartup {
counterparty_node_id,
funding_txo: prev_hop.outpoint,
+ channel_id: prev_hop.channel_id,
update: monitor_update.clone(),
});
}
};
mem::drop(peer_state_lock);
- log_trace!(self.logger, "Completing monitor update completion action for channel {} as claim was redundant: {:?}",
+ log_trace!(logger, "Completing monitor update completion action for channel {} as claim was redundant: {:?}",
chan_id, action);
- let (node_id, funding_outpoint, blocker) =
+ let (node_id, _funding_outpoint, channel_id, blocker) =
if let MonitorUpdateCompletionAction::FreeOtherChannelImmediately {
downstream_counterparty_node_id: node_id,
downstream_funding_outpoint: funding_outpoint,
- blocking_action: blocker,
+ blocking_action: blocker, downstream_channel_id: channel_id,
} = action {
- (node_id, funding_outpoint, blocker)
+ (node_id, funding_outpoint, channel_id, blocker)
} else {
debug_assert!(false,
"Duplicate claims should always free another channel immediately");
let mut peer_state = peer_state_mtx.lock().unwrap();
if let Some(blockers) = peer_state
.actions_blocking_raa_monitor_updates
- .get_mut(&funding_outpoint.to_channel_id())
+ .get_mut(&channel_id)
{
let mut found_blocker = false;
blockers.retain(|iter| {
}
let preimage_update = ChannelMonitorUpdate {
update_id: CLOSED_CHANNEL_UPDATE_ID,
+ counterparty_node_id: None,
updates: vec![ChannelMonitorUpdateStep::PaymentPreimage {
payment_preimage,
}],
+ channel_id: Some(prev_hop.channel_id),
};
if !during_init {
// with a preimage we *must* somehow manage to propagate it to the upstream
// channel, or we must have an ability to receive the same event and try
// again on restart.
- log_error!(self.logger, "Critical error: failed to update channel monitor with preimage {:?}: {:?}",
+ log_error!(WithContext::from(&self.logger, None, Some(prev_hop.channel_id)),
+ "Critical error: failed to update channel monitor with preimage {:?}: {:?}",
payment_preimage, update_res);
}
} else {
// complete the monitor update completion action from `completion_action`.
self.pending_background_events.lock().unwrap().push(
BackgroundEvent::ClosedMonitorUpdateRegeneratedOnStartup((
- prev_hop.outpoint, preimage_update,
+ prev_hop.outpoint, prev_hop.channel_id, preimage_update,
)));
}
// Note that we do process the completion action here. This totally could be a
}
fn claim_funds_internal(&self, source: HTLCSource, payment_preimage: PaymentPreimage,
- forwarded_htlc_value_msat: Option<u64>, from_onchain: bool, startup_replay: bool,
- next_channel_counterparty_node_id: Option<PublicKey>, next_channel_outpoint: OutPoint
+ forwarded_htlc_value_msat: Option<u64>, skimmed_fee_msat: Option<u64>, from_onchain: bool,
+ startup_replay: bool, next_channel_counterparty_node_id: Option<PublicKey>,
+ next_channel_outpoint: OutPoint, next_channel_id: ChannelId, next_user_channel_id: Option<u128>,
) {
match source {
HTLCSource::OutboundRoute { session_priv, payment_id, path, .. } => {
debug_assert_eq!(pubkey, path.hops[0].pubkey);
}
let ev_completion_action = EventCompletionAction::ReleaseRAAChannelMonitorUpdate {
- channel_funding_outpoint: next_channel_outpoint,
+ channel_funding_outpoint: next_channel_outpoint, channel_id: next_channel_id,
counterparty_node_id: path.hops[0].pubkey,
};
self.pending_outbound_payments.claim_htlc(payment_id, payment_preimage,
&self.logger);
},
HTLCSource::PreviousHopData(hop_data) => {
- let prev_outpoint = hop_data.outpoint;
+ let prev_channel_id = hop_data.channel_id;
+ let prev_user_channel_id = hop_data.user_channel_id;
let completed_blocker = RAAMonitorUpdateBlockingAction::from_prev_hop_data(&hop_data);
#[cfg(debug_assertions)]
let claiming_chan_funding_outpoint = hop_data.outpoint;
|htlc_claim_value_msat, definitely_duplicate| {
let chan_to_release =
if let Some(node_id) = next_channel_counterparty_node_id {
- Some((node_id, next_channel_outpoint, completed_blocker))
+ Some((node_id, next_channel_outpoint, next_channel_id, completed_blocker))
} else {
// We can only get `None` here if we are processing a
// `ChannelMonitor`-originated event, in which case we
},
// or the channel we'd unblock is already closed,
BackgroundEvent::ClosedMonitorUpdateRegeneratedOnStartup(
- (funding_txo, monitor_update)
+ (funding_txo, _channel_id, monitor_update)
) => {
if *funding_txo == next_channel_outpoint {
assert_eq!(monitor_update.updates.len(), 1);
BackgroundEvent::MonitorUpdatesComplete {
channel_id, ..
} =>
- *channel_id == claiming_chan_funding_outpoint.to_channel_id(),
+ *channel_id == prev_channel_id,
}
}), "{:?}", *background_events);
}
Some(MonitorUpdateCompletionAction::FreeOtherChannelImmediately {
downstream_counterparty_node_id: other_chan.0,
downstream_funding_outpoint: other_chan.1,
- blocking_action: other_chan.2,
+ downstream_channel_id: other_chan.2,
+ blocking_action: other_chan.3,
})
} else { None }
} else {
- let fee_earned_msat = if let Some(forwarded_htlc_value) = forwarded_htlc_value_msat {
+ let total_fee_earned_msat = if let Some(forwarded_htlc_value) = forwarded_htlc_value_msat {
if let Some(claimed_htlc_value) = htlc_claim_value_msat {
Some(claimed_htlc_value - forwarded_htlc_value)
} else { None }
} else { None };
+ debug_assert!(skimmed_fee_msat <= total_fee_earned_msat,
+ "skimmed_fee_msat must always be included in total_fee_earned_msat");
Some(MonitorUpdateCompletionAction::EmitEventAndFreeOtherChannel {
event: events::Event::PaymentForwarded {
- fee_earned_msat,
+ prev_channel_id: Some(prev_channel_id),
+ next_channel_id: Some(next_channel_id),
+ prev_user_channel_id,
+ next_user_channel_id,
+ total_fee_earned_msat,
+ skimmed_fee_msat,
claim_from_onchain_tx: from_onchain,
- prev_channel_id: Some(prev_outpoint.to_channel_id()),
- next_channel_id: Some(next_channel_outpoint.to_channel_id()),
outbound_amount_forwarded_msat: forwarded_htlc_value_msat,
},
downstream_counterparty_and_funding_outpoint: chan_to_release,
event, downstream_counterparty_and_funding_outpoint
} => {
self.pending_events.lock().unwrap().push_back((event, None));
- if let Some((node_id, funding_outpoint, blocker)) = downstream_counterparty_and_funding_outpoint {
- self.handle_monitor_update_release(node_id, funding_outpoint, Some(blocker));
+ if let Some((node_id, funding_outpoint, channel_id, blocker)) = downstream_counterparty_and_funding_outpoint {
+ self.handle_monitor_update_release(node_id, funding_outpoint, channel_id, Some(blocker));
}
},
MonitorUpdateCompletionAction::FreeOtherChannelImmediately {
- downstream_counterparty_node_id, downstream_funding_outpoint, blocking_action,
+ downstream_counterparty_node_id, downstream_funding_outpoint, downstream_channel_id, blocking_action,
} => {
self.handle_monitor_update_release(
downstream_counterparty_node_id,
downstream_funding_outpoint,
+ downstream_channel_id,
Some(blocking_action),
);
},
fn handle_channel_resumption(&self, pending_msg_events: &mut Vec<MessageSendEvent>,
channel: &mut Channel<SP>, raa: Option<msgs::RevokeAndACK>,
commitment_update: Option<msgs::CommitmentUpdate>, order: RAACommitmentOrder,
- pending_forwards: Vec<(PendingHTLCInfo, u64)>, funding_broadcastable: Option<Transaction>,
+ pending_forwards: Vec<(PendingHTLCInfo, u64)>, pending_update_adds: Vec<msgs::UpdateAddHTLC>,
+ funding_broadcastable: Option<Transaction>,
channel_ready: Option<msgs::ChannelReady>, announcement_sigs: Option<msgs::AnnouncementSignatures>)
- -> Option<(u64, OutPoint, u128, Vec<(PendingHTLCInfo, u64)>)> {
- log_trace!(self.logger, "Handling channel resumption for channel {} with {} RAA, {} commitment update, {} pending forwards, {}broadcasting funding, {} channel ready, {} announcement",
+ -> (Option<(u64, OutPoint, ChannelId, u128, Vec<(PendingHTLCInfo, u64)>)>, Option<(u64, Vec<msgs::UpdateAddHTLC>)>) {
+ let logger = WithChannelContext::from(&self.logger, &channel.context);
+ log_trace!(logger, "Handling channel resumption for channel {} with {} RAA, {} commitment update, {} pending forwards, {} pending update_add_htlcs, {}broadcasting funding, {} channel ready, {} announcement",
&channel.context.channel_id(),
if raa.is_some() { "an" } else { "no" },
- if commitment_update.is_some() { "a" } else { "no" }, pending_forwards.len(),
+ if commitment_update.is_some() { "a" } else { "no" },
+ pending_forwards.len(), pending_update_adds.len(),
if funding_broadcastable.is_some() { "" } else { "not " },
if channel_ready.is_some() { "sending" } else { "without" },
if announcement_sigs.is_some() { "sending" } else { "without" });
- let mut htlc_forwards = None;
-
let counterparty_node_id = channel.context.get_counterparty_node_id();
+ let short_channel_id = channel.context.get_short_channel_id().unwrap_or(channel.context.outbound_scid_alias());
+
+ let mut htlc_forwards = None;
if !pending_forwards.is_empty() {
- htlc_forwards = Some((channel.context.get_short_channel_id().unwrap_or(channel.context.outbound_scid_alias()),
- channel.context.get_funding_txo().unwrap(), channel.context.get_user_id(), pending_forwards));
+ htlc_forwards = Some((short_channel_id, channel.context.get_funding_txo().unwrap(),
+ channel.context.channel_id(), channel.context.get_user_id(), pending_forwards));
+ }
+ let mut decode_update_add_htlcs = None;
+ if !pending_update_adds.is_empty() {
+ decode_update_add_htlcs = Some((short_channel_id, pending_update_adds));
}
if let Some(msg) = channel_ready {
}
if let Some(tx) = funding_broadcastable {
- log_info!(self.logger, "Broadcasting funding transaction with txid {}", tx.txid());
+ log_info!(logger, "Broadcasting funding transaction with txid {}", tx.txid());
self.tx_broadcaster.broadcast_transactions(&[&tx]);
}
emit_channel_ready_event!(pending_events, channel);
}
- htlc_forwards
+ (htlc_forwards, decode_update_add_htlcs)
}
- fn channel_monitor_updated(&self, funding_txo: &OutPoint, highest_applied_update_id: u64, counterparty_node_id: Option<&PublicKey>) {
+ fn channel_monitor_updated(&self, funding_txo: &OutPoint, channel_id: &ChannelId, highest_applied_update_id: u64, counterparty_node_id: Option<&PublicKey>) {
debug_assert!(self.total_consistency_lock.try_write().is_err()); // Caller holds read lock
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()) {
+ // monitor event, this and the outpoint_to_peer map should be removed.
+ let outpoint_to_peer = self.outpoint_to_peer.lock().unwrap();
+ match outpoint_to_peer.get(funding_txo) {
Some(cp_id) => cp_id.clone(),
None => return,
}
peer_state_lock = peer_state_mutex_opt.unwrap().lock().unwrap();
let peer_state = &mut *peer_state_lock;
let channel =
- if let Some(ChannelPhase::Funded(chan)) = peer_state.channel_by_id.get_mut(&funding_txo.to_channel_id()) {
+ if let Some(ChannelPhase::Funded(chan)) = peer_state.channel_by_id.get_mut(channel_id) {
chan
} else {
let update_actions = peer_state.monitor_update_blocked_actions
- .remove(&funding_txo.to_channel_id()).unwrap_or(Vec::new());
+ .remove(&channel_id).unwrap_or(Vec::new());
mem::drop(peer_state_lock);
mem::drop(per_peer_state);
self.handle_monitor_update_completion_actions(update_actions);
pending.retain(|upd| upd.update_id > highest_applied_update_id);
pending.len()
} else { 0 };
- log_trace!(self.logger, "ChannelMonitor updated to {}. Current highest is {}. {} pending in-flight updates.",
+ let logger = WithChannelContext::from(&self.logger, &channel.context);
+ log_trace!(logger, "ChannelMonitor updated to {}. Current highest is {}. {} pending in-flight updates.",
highest_applied_update_id, channel.context.get_latest_monitor_update_id(),
remaining_in_flight);
if !channel.is_awaiting_monitor_update() || channel.context.get_latest_monitor_update_id() != highest_applied_update_id {
}
fn do_accept_inbound_channel(&self, temporary_channel_id: &ChannelId, counterparty_node_id: &PublicKey, accept_0conf: bool, user_channel_id: u128) -> Result<(), APIError> {
+
+ let logger = WithContext::from(&self.logger, Some(*counterparty_node_id), Some(*temporary_channel_id));
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
let peers_without_funded_channels =
self.peers_without_funded_channels(|peer| { peer.total_channel_count() > 0 });
let per_peer_state = self.per_peer_state.read().unwrap();
let peer_state_mutex = per_peer_state.get(counterparty_node_id)
- .ok_or_else(|| APIError::ChannelUnavailable { err: format!("Can't find a peer matching the passed counterparty node_id {}", counterparty_node_id) })?;
+ .ok_or_else(|| {
+ let err_str = format!("Can't find a peer matching the passed counterparty node_id {}", counterparty_node_id);
+ log_error!(logger, "{}", err_str);
+
+ APIError::ChannelUnavailable { err: err_str }
+ })?;
let mut peer_state_lock = peer_state_mutex.lock().unwrap();
let peer_state = &mut *peer_state_lock;
let is_only_peer_channel = peer_state.total_channel_count() == 1;
// happening and return an error. N.B. that we create channel with an outbound SCID of zero so
// that we can delay allocating the SCID until after we're sure that the checks below will
// succeed.
- let mut channel = match peer_state.inbound_channel_request_by_id.remove(temporary_channel_id) {
+ let res = match peer_state.inbound_channel_request_by_id.remove(temporary_channel_id) {
Some(unaccepted_channel) => {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
InboundV1Channel::new(&self.fee_estimator, &self.entropy_source, &self.signer_provider,
counterparty_node_id.clone(), &self.channel_type_features(), &peer_state.latest_features,
&unaccepted_channel.open_channel_msg, user_channel_id, &self.default_configuration, best_block_height,
- &self.logger, accept_0conf).map_err(|e| APIError::ChannelUnavailable { err: e.to_string() })
- }
- _ => Err(APIError::APIMisuseError { err: "No such channel awaiting to be accepted.".to_owned() })
- }?;
-
- if accept_0conf {
- // This should have been correctly configured by the call to InboundV1Channel::new.
- debug_assert!(channel.context.minimum_depth().unwrap() == 0);
- } else if channel.context.get_channel_type().requires_zero_conf() {
- let send_msg_err_event = events::MessageSendEvent::HandleError {
- node_id: channel.context.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(), }
+ &self.logger, accept_0conf).map_err(|err| MsgHandleErrInternal::from_chan_no_close(err, *temporary_channel_id))
+ },
+ _ => {
+ let err_str = "No such channel awaiting to be accepted.".to_owned();
+ log_error!(logger, "{}", err_str);
+
+ return Err(APIError::APIMisuseError { err: err_str });
+ }
+ };
+
+ match res {
+ Err(err) => {
+ mem::drop(peer_state_lock);
+ mem::drop(per_peer_state);
+ match handle_error!(self, Result::<(), MsgHandleErrInternal>::Err(err), *counterparty_node_id) {
+ Ok(_) => unreachable!("`handle_error` only returns Err as we've passed in an Err"),
+ Err(e) => {
+ return Err(APIError::ChannelUnavailable { err: e.err });
+ },
}
- };
- peer_state.pending_msg_events.push(send_msg_err_event);
- return Err(APIError::APIMisuseError { err: "Please use accept_inbound_channel_from_trusted_peer_0conf to accept channels with zero confirmations.".to_owned() });
- } else {
- // If this peer already has some channels, a new channel won't increase our number of peers
- // with unfunded channels, so as long as we aren't over the maximum number of unfunded
- // channels per-peer we can accept channels from a peer with existing ones.
- if is_only_peer_channel && peers_without_funded_channels >= MAX_UNFUNDED_CHANNEL_PEERS {
- let send_msg_err_event = events::MessageSendEvent::HandleError {
- node_id: channel.context.get_counterparty_node_id(),
- action: msgs::ErrorAction::SendErrorMessage{
- msg: msgs::ErrorMessage { channel_id: temporary_channel_id.clone(), data: "Have too many peers with unfunded channels, not accepting new ones".to_owned(), }
- }
- };
- peer_state.pending_msg_events.push(send_msg_err_event);
- return Err(APIError::APIMisuseError { err: "Too many peers with unfunded channels, refusing to accept new ones".to_owned() });
}
- }
+ Ok(mut channel) => {
+ if accept_0conf {
+ // This should have been correctly configured by the call to InboundV1Channel::new.
+ debug_assert!(channel.context.minimum_depth().unwrap() == 0);
+ } else if channel.context.get_channel_type().requires_zero_conf() {
+ let send_msg_err_event = events::MessageSendEvent::HandleError {
+ node_id: channel.context.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(), }
+ }
+ };
+ peer_state.pending_msg_events.push(send_msg_err_event);
+ let err_str = "Please use accept_inbound_channel_from_trusted_peer_0conf to accept channels with zero confirmations.".to_owned();
+ log_error!(logger, "{}", err_str);
- // Now that we know we have a channel, assign an outbound SCID alias.
- let outbound_scid_alias = self.create_and_insert_outbound_scid_alias();
- channel.context.set_outbound_scid_alias(outbound_scid_alias);
+ return Err(APIError::APIMisuseError { err: err_str });
+ } else {
+ // If this peer already has some channels, a new channel won't increase our number of peers
+ // with unfunded channels, so as long as we aren't over the maximum number of unfunded
+ // channels per-peer we can accept channels from a peer with existing ones.
+ if is_only_peer_channel && peers_without_funded_channels >= MAX_UNFUNDED_CHANNEL_PEERS {
+ let send_msg_err_event = events::MessageSendEvent::HandleError {
+ node_id: channel.context.get_counterparty_node_id(),
+ action: msgs::ErrorAction::SendErrorMessage{
+ msg: msgs::ErrorMessage { channel_id: temporary_channel_id.clone(), data: "Have too many peers with unfunded channels, not accepting new ones".to_owned(), }
+ }
+ };
+ peer_state.pending_msg_events.push(send_msg_err_event);
+ let err_str = "Too many peers with unfunded channels, refusing to accept new ones".to_owned();
+ log_error!(logger, "{}", err_str);
- peer_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel {
- node_id: channel.context.get_counterparty_node_id(),
- msg: channel.accept_inbound_channel(),
- });
+ return Err(APIError::APIMisuseError { err: err_str });
+ }
+ }
- peer_state.channel_by_id.insert(temporary_channel_id.clone(), ChannelPhase::UnfundedInboundV1(channel));
+ // Now that we know we have a channel, assign an outbound SCID alias.
+ let outbound_scid_alias = self.create_and_insert_outbound_scid_alias();
+ channel.context.set_outbound_scid_alias(outbound_scid_alias);
- Ok(())
+ peer_state.pending_msg_events.push(events::MessageSendEvent::SendAcceptChannel {
+ node_id: channel.context.get_counterparty_node_id(),
+ msg: channel.accept_inbound_channel(),
+ });
+
+ peer_state.channel_by_id.insert(temporary_channel_id.clone(), ChannelPhase::UnfundedInboundV1(channel));
+
+ Ok(())
+ },
+ }
}
/// Gets the number of peers which match the given filter and do not have any funded, outbound,
fn peers_without_funded_channels<Filter>(&self, maybe_count_peer: Filter) -> usize
where Filter: Fn(&PeerState<SP>) -> bool {
let mut peers_without_funded_channels = 0;
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
{
let peer_state_lock = self.per_peer_state.read().unwrap();
for (_, peer_mtx) in peer_state_lock.iter() {
num_unfunded_channels += 1;
}
},
+ // TODO(dual_funding): Combine this match arm with above once #[cfg(dual_funding)] is removed.
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedInboundV2(chan) => {
+ // Only inbound V2 channels that are not 0conf and that we do not contribute to will be
+ // included in the unfunded count.
+ if chan.context.minimum_depth().unwrap_or(1) != 0 &&
+ chan.dual_funding_context.our_funding_satoshis == 0 {
+ num_unfunded_channels += 1;
+ }
+ },
ChannelPhase::UnfundedOutboundV1(_) => {
// Outbound channels don't contribute to the unfunded count in the DoS context.
continue;
+ },
+ // TODO(dual_funding): Combine this match arm with above once #[cfg(dual_funding)] is removed.
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedOutboundV2(_) => {
+ // Outbound channels don't contribute to the unfunded count in the DoS context.
+ continue;
}
}
}
fn internal_open_channel(&self, counterparty_node_id: &PublicKey, msg: &msgs::OpenChannel) -> Result<(), MsgHandleErrInternal> {
// Note that the ChannelManager is NOT re-persisted on disk after this, so any changes are
// likely to be lost on restart!
- if msg.chain_hash != self.chain_hash {
- return Err(MsgHandleErrInternal::send_err_msg_no_close("Unknown genesis block hash".to_owned(), msg.temporary_channel_id.clone()));
+ if msg.common_fields.chain_hash != self.chain_hash {
+ return Err(MsgHandleErrInternal::send_err_msg_no_close("Unknown genesis block hash".to_owned(),
+ msg.common_fields.temporary_channel_id.clone()));
}
if !self.default_configuration.accept_inbound_channels {
- return Err(MsgHandleErrInternal::send_err_msg_no_close("No inbound channels accepted".to_owned(), msg.temporary_channel_id.clone()));
+ return Err(MsgHandleErrInternal::send_err_msg_no_close("No inbound channels accepted".to_owned(),
+ msg.common_fields.temporary_channel_id.clone()));
}
// Get the number of peers with channels, but without funded ones. We don't care too much
let peer_state_mutex = per_peer_state.get(counterparty_node_id)
.ok_or_else(|| {
debug_assert!(false);
- MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer matching the passed counterparty node_id {}", counterparty_node_id), msg.temporary_channel_id.clone())
+ MsgHandleErrInternal::send_err_msg_no_close(
+ format!("Can't find a peer matching the passed counterparty node_id {}", counterparty_node_id),
+ msg.common_fields.temporary_channel_id.clone())
})?;
let mut peer_state_lock = peer_state_mutex.lock().unwrap();
let peer_state = &mut *peer_state_lock;
{
return Err(MsgHandleErrInternal::send_err_msg_no_close(
"Have too many peers with unfunded channels, not accepting new ones".to_owned(),
- msg.temporary_channel_id.clone()));
+ msg.common_fields.temporary_channel_id.clone()));
}
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
if Self::unfunded_channel_count(peer_state, best_block_height) >= MAX_UNFUNDED_CHANS_PER_PEER {
return Err(MsgHandleErrInternal::send_err_msg_no_close(
format!("Refusing more than {} unfunded channels.", MAX_UNFUNDED_CHANS_PER_PEER),
- msg.temporary_channel_id.clone()));
+ msg.common_fields.temporary_channel_id.clone()));
}
- let channel_id = msg.temporary_channel_id;
+ let channel_id = msg.common_fields.temporary_channel_id;
let channel_exists = peer_state.has_channel(&channel_id);
if channel_exists {
- return Err(MsgHandleErrInternal::send_err_msg_no_close("temporary_channel_id collision for the same peer!".to_owned(), msg.temporary_channel_id.clone()));
+ return Err(MsgHandleErrInternal::send_err_msg_no_close(
+ "temporary_channel_id collision for the same peer!".to_owned(),
+ msg.common_fields.temporary_channel_id.clone()));
}
// If we're doing manual acceptance checks on the channel, then defer creation until we're sure we want to accept.
if self.default_configuration.manually_accept_inbound_channels {
+ let channel_type = channel::channel_type_from_open_channel(
+ &msg.common_fields, &peer_state.latest_features, &self.channel_type_features()
+ ).map_err(|e|
+ MsgHandleErrInternal::from_chan_no_close(e, msg.common_fields.temporary_channel_id)
+ )?;
let mut pending_events = self.pending_events.lock().unwrap();
pending_events.push_back((events::Event::OpenChannelRequest {
- temporary_channel_id: msg.temporary_channel_id.clone(),
+ temporary_channel_id: msg.common_fields.temporary_channel_id.clone(),
counterparty_node_id: counterparty_node_id.clone(),
- funding_satoshis: msg.funding_satoshis,
+ funding_satoshis: msg.common_fields.funding_satoshis,
push_msat: msg.push_msat,
- channel_type: msg.channel_type.clone().unwrap(),
+ channel_type,
}, None));
peer_state.inbound_channel_request_by_id.insert(channel_id, InboundChannelRequest {
open_channel_msg: msg.clone(),
&self.default_configuration, best_block_height, &self.logger, /*is_0conf=*/false)
{
Err(e) => {
- return Err(MsgHandleErrInternal::from_chan_no_close(e, msg.temporary_channel_id));
+ return Err(MsgHandleErrInternal::from_chan_no_close(e, msg.common_fields.temporary_channel_id));
},
Ok(res) => res
};
let channel_type = channel.context.get_channel_type();
if 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()));
+ return Err(MsgHandleErrInternal::send_err_msg_no_close(
+ "No zero confirmation channels accepted".to_owned(),
+ msg.common_fields.temporary_channel_id.clone()));
}
if channel_type.requires_anchors_zero_fee_htlc_tx() {
- return Err(MsgHandleErrInternal::send_err_msg_no_close("No channels with anchor outputs accepted".to_owned(), msg.temporary_channel_id.clone()));
+ return Err(MsgHandleErrInternal::send_err_msg_no_close(
+ "No channels with anchor outputs accepted".to_owned(),
+ msg.common_fields.temporary_channel_id.clone()));
}
let outbound_scid_alias = self.create_and_insert_outbound_scid_alias();
let peer_state_mutex = per_peer_state.get(counterparty_node_id)
.ok_or_else(|| {
debug_assert!(false);
- MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer matching the passed counterparty node_id {}", counterparty_node_id), msg.temporary_channel_id)
+ MsgHandleErrInternal::send_err_msg_no_close(format!("Can't find a peer matching the passed counterparty node_id {}", counterparty_node_id), msg.common_fields.temporary_channel_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) {
+ match peer_state.channel_by_id.entry(msg.common_fields.temporary_channel_id) {
hash_map::Entry::Occupied(mut phase) => {
match phase.get_mut() {
ChannelPhase::UnfundedOutboundV1(chan) => {
(chan.context.get_value_satoshis(), chan.context.get_funding_redeemscript().to_v0_p2wsh(), chan.context.get_user_id())
},
_ => {
- return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Got an unexpected accept_channel message from peer with counterparty_node_id {}", counterparty_node_id), msg.temporary_channel_id));
+ return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Got an unexpected accept_channel message from peer with counterparty_node_id {}", counterparty_node_id), msg.common_fields.temporary_channel_id));
}
}
},
- hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Got a message for a channel from the wrong node! No such channel for the passed counterparty_node_id {}", counterparty_node_id), msg.temporary_channel_id))
+ hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Got a message for a channel from the wrong node! No such channel for the passed counterparty_node_id {}", counterparty_node_id), msg.common_fields.temporary_channel_id))
}
};
let mut pending_events = self.pending_events.lock().unwrap();
pending_events.push_back((events::Event::FundingGenerationReady {
- temporary_channel_id: msg.temporary_channel_id,
+ temporary_channel_id: msg.common_fields.temporary_channel_id,
counterparty_node_id: *counterparty_node_id,
channel_value_satoshis: value,
output_script,
let mut peer_state_lock = peer_state_mutex.lock().unwrap();
let peer_state = &mut *peer_state_lock;
- let (chan, funding_msg_opt, monitor) =
+ let (mut chan, funding_msg_opt, monitor) =
match peer_state.channel_by_id.remove(&msg.temporary_channel_id) {
Some(ChannelPhase::UnfundedInboundV1(inbound_chan)) => {
- match inbound_chan.funding_created(msg, best_block, &self.signer_provider, &self.logger) {
+ let logger = WithChannelContext::from(&self.logger, &inbound_chan.context);
+ match inbound_chan.funding_created(msg, best_block, &self.signer_provider, &&logger) {
Ok(res) => res,
- Err((mut inbound_chan, err)) => {
+ Err((inbound_chan, err)) => {
// We've already removed this inbound channel from the map in `PeerState`
// above so at this point we just need to clean up any lingering entries
// concerning this channel as it is safe to do so.
- update_maps_on_chan_removal!(self, &inbound_chan.context);
- let user_id = inbound_chan.context.get_user_id();
- let shutdown_res = inbound_chan.context.force_shutdown(false);
- return Err(MsgHandleErrInternal::from_finish_shutdown(format!("{}", err),
- msg.temporary_channel_id, user_id, shutdown_res, None, inbound_chan.context.get_value_satoshis()));
+ debug_assert!(matches!(err, ChannelError::Close(_)));
+ // Really we should be returning the channel_id the peer expects based
+ // on their funding info here, but they're horribly confused anyway, so
+ // there's not a lot we can do to save them.
+ return Err(convert_chan_phase_err!(self, err, &mut ChannelPhase::UnfundedInboundV1(inbound_chan), &msg.temporary_channel_id).1);
},
}
},
- Some(ChannelPhase::Funded(_)) | Some(ChannelPhase::UnfundedOutboundV1(_)) => {
- return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Got an unexpected funding_created message from peer with counterparty_node_id {}", counterparty_node_id), msg.temporary_channel_id));
+ Some(mut phase) => {
+ let err_msg = format!("Got an unexpected funding_created message from peer with counterparty_node_id {}", counterparty_node_id);
+ let err = ChannelError::Close(err_msg);
+ return Err(convert_chan_phase_err!(self, err, &mut phase, &msg.temporary_channel_id).1);
},
None => return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Got a message for a channel from the wrong node! No such channel for the passed counterparty_node_id {}", counterparty_node_id), msg.temporary_channel_id))
};
- match peer_state.channel_by_id.entry(chan.context.channel_id()) {
+ let funded_channel_id = chan.context.channel_id();
+
+ macro_rules! fail_chan { ($err: expr) => { {
+ // Note that at this point we've filled in the funding outpoint on our
+ // channel, but its actually in conflict with another channel. Thus, if
+ // we call `convert_chan_phase_err` immediately (thus calling
+ // `update_maps_on_chan_removal`), we'll remove the existing channel
+ // from `outpoint_to_peer`. Thus, we must first unset the funding outpoint
+ // on the channel.
+ let err = ChannelError::Close($err.to_owned());
+ chan.unset_funding_info(msg.temporary_channel_id);
+ return Err(convert_chan_phase_err!(self, err, chan, &funded_channel_id, UNFUNDED_CHANNEL).1);
+ } } }
+
+ match peer_state.channel_by_id.entry(funded_channel_id) {
hash_map::Entry::Occupied(_) => {
- Err(MsgHandleErrInternal::send_err_msg_no_close(
- "Already had channel with the new channel_id".to_owned(),
- chan.context.channel_id()
- ))
+ fail_chan!("Already had channel with the new channel_id");
},
hash_map::Entry::Vacant(e) => {
- let mut id_to_peer_lock = self.id_to_peer.lock().unwrap();
- match id_to_peer_lock.entry(chan.context.channel_id()) {
+ let mut outpoint_to_peer_lock = self.outpoint_to_peer.lock().unwrap();
+ match outpoint_to_peer_lock.entry(monitor.get_funding_txo().0) {
hash_map::Entry::Occupied(_) => {
- return Err(MsgHandleErrInternal::send_err_msg_no_close(
- "The funding_created message had the same funding_txid as an existing channel - funding is not possible".to_owned(),
- chan.context.channel_id()))
+ fail_chan!("The funding_created message had the same funding_txid as an existing channel - funding is not possible");
},
hash_map::Entry::Vacant(i_e) => {
let monitor_res = self.chain_monitor.watch_channel(monitor.get_funding_txo().0, monitor);
if let Ok(persist_state) = monitor_res {
i_e.insert(chan.context.get_counterparty_node_id());
- mem::drop(id_to_peer_lock);
+ mem::drop(outpoint_to_peer_lock);
// There's no problem signing a counterparty's funding transaction if our monitor
// hasn't persisted to disk yet - we can't lose money on a transaction that we haven't
}
Ok(())
} else {
- log_error!(self.logger, "Persisting initial ChannelMonitor failed, implying the funding outpoint was duplicated");
- let channel_id = match funding_msg_opt {
- Some(msg) => msg.channel_id,
- None => chan.context.channel_id(),
- };
- return Err(MsgHandleErrInternal::send_err_msg_no_close(
- "The funding_created message had the same funding_txid as an existing channel - funding is not possible".to_owned(),
- channel_id));
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ log_error!(logger, "Persisting initial ChannelMonitor failed, implying the funding outpoint was duplicated");
+ fail_chan!("Duplicate funding outpoint");
}
}
}
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_phase_entry) => {
- match chan_phase_entry.get_mut() {
- ChannelPhase::Funded(ref mut chan) => {
- let monitor = try_chan_phase_entry!(self,
- chan.funding_signed(&msg, best_block, &self.signer_provider, &self.logger), chan_phase_entry);
- if let Ok(persist_status) = self.chain_monitor.watch_channel(chan.context.get_funding_txo().unwrap(), monitor) {
- handle_new_monitor_update!(self, persist_status, peer_state_lock, peer_state, per_peer_state, chan, INITIAL_MONITOR);
- Ok(())
- } else {
- try_chan_phase_entry!(self, Err(ChannelError::Close("Channel funding outpoint was a duplicate".to_owned())), chan_phase_entry)
+ hash_map::Entry::Occupied(chan_phase_entry) => {
+ if matches!(chan_phase_entry.get(), ChannelPhase::UnfundedOutboundV1(_)) {
+ let chan = if let ChannelPhase::UnfundedOutboundV1(chan) = chan_phase_entry.remove() { chan } else { unreachable!() };
+ let logger = WithContext::from(
+ &self.logger,
+ Some(chan.context.get_counterparty_node_id()),
+ Some(chan.context.channel_id())
+ );
+ let res =
+ chan.funding_signed(&msg, best_block, &self.signer_provider, &&logger);
+ match res {
+ Ok((mut chan, monitor)) => {
+ if let Ok(persist_status) = self.chain_monitor.watch_channel(chan.context.get_funding_txo().unwrap(), monitor) {
+ // We really should be able to insert here without doing a second
+ // lookup, but sadly rust stdlib doesn't currently allow keeping
+ // the original Entry around with the value removed.
+ let mut chan = peer_state.channel_by_id.entry(msg.channel_id).or_insert(ChannelPhase::Funded(chan));
+ if let ChannelPhase::Funded(ref mut chan) = &mut chan {
+ handle_new_monitor_update!(self, persist_status, peer_state_lock, peer_state, per_peer_state, chan, INITIAL_MONITOR);
+ } else { unreachable!(); }
+ Ok(())
+ } else {
+ let e = ChannelError::Close("Channel funding outpoint was a duplicate".to_owned());
+ // 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.
+ chan.unset_funding_info(msg.channel_id);
+ return Err(convert_chan_phase_err!(self, e, &mut ChannelPhase::Funded(chan), &msg.channel_id).1);
+ }
+ },
+ Err((chan, e)) => {
+ debug_assert!(matches!(e, ChannelError::Close(_)),
+ "We don't have a channel anymore, so the error better have expected close");
+ // We've already removed this outbound channel from the map in
+ // `PeerState` above so at this point we just need to clean up any
+ // lingering entries concerning this channel as it is safe to do so.
+ return Err(convert_chan_phase_err!(self, e, &mut ChannelPhase::UnfundedOutboundV1(chan), &msg.channel_id).1);
}
- },
- _ => {
- 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("Failed to find corresponding channel".to_owned(), msg.channel_id));
}
},
hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close("Failed to find corresponding channel".to_owned(), msg.channel_id))
match peer_state.channel_by_id.entry(msg.channel_id) {
hash_map::Entry::Occupied(mut chan_phase_entry) => {
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
let announcement_sigs_opt = try_chan_phase_entry!(self, chan.channel_ready(&msg, &self.node_signer,
- self.chain_hash, &self.default_configuration, &self.best_block.read().unwrap(), &self.logger), chan_phase_entry);
+ self.chain_hash, &self.default_configuration, &self.best_block.read().unwrap(), &&logger), chan_phase_entry);
if let Some(announcement_sigs) = announcement_sigs_opt {
- log_trace!(self.logger, "Sending announcement_signatures for channel {}", chan.context.channel_id());
+ log_trace!(logger, "Sending announcement_signatures for channel {}", chan.context.channel_id());
peer_state.pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
node_id: counterparty_node_id.clone(),
msg: announcement_sigs,
// 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 {}", chan.context.channel_id());
+ log_trace!(logger, "Sending private initial channel_update for our counterparty on channel {}", chan.context.channel_id());
if let Ok(msg) = self.get_channel_update_for_unicast(chan) {
peer_state.pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate {
node_id: counterparty_node_id.clone(),
match phase {
ChannelPhase::Funded(chan) => {
if !chan.received_shutdown() {
- log_info!(self.logger, "Received a shutdown message from our counterparty for channel {}{}.",
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ log_info!(logger, "Received a shutdown message from our counterparty for channel {}{}.",
msg.channel_id,
if chan.sent_shutdown() { " after we initiated shutdown" } else { "" });
}
}
},
ChannelPhase::UnfundedInboundV1(_) | ChannelPhase::UnfundedOutboundV1(_) => {
+ let context = phase.context_mut();
+ let logger = WithChannelContext::from(&self.logger, context);
+ log_error!(logger, "Immediately closing unfunded channel {} as peer asked to cooperatively shut it down (which is unnecessary)", &msg.channel_id);
+ let mut chan = remove_channel_phase!(self, chan_phase_entry);
+ finish_shutdown = Some(chan.context_mut().force_shutdown(false, ClosureReason::CounterpartyCoopClosedUnfundedChannel));
+ },
+ // TODO(dual_funding): Combine this match arm with above.
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedInboundV2(_) | ChannelPhase::UnfundedOutboundV2(_) => {
let context = phase.context_mut();
log_error!(self.logger, "Immediately closing unfunded channel {} as peer asked to cooperatively shut it down (which is unnecessary)", &msg.channel_id);
- self.issue_channel_close_events(&context, ClosureReason::CounterpartyCoopClosedUnfundedChannel);
let mut chan = remove_channel_phase!(self, chan_phase_entry);
- finish_shutdown = Some(chan.context_mut().force_shutdown(false));
+ finish_shutdown = Some(chan.context_mut().force_shutdown(false, ClosureReason::CounterpartyCoopClosedUnfundedChannel));
},
}
} else {
}
};
if let Some(broadcast_tx) = tx {
- log_info!(self.logger, "Broadcasting {}", log_tx!(broadcast_tx));
+ let channel_id = chan_option.as_ref().map(|channel| channel.context().channel_id());
+ log_info!(WithContext::from(&self.logger, Some(*counterparty_node_id), channel_id), "Broadcasting {}", log_tx!(broadcast_tx));
self.tx_broadcaster.broadcast_transactions(&[&broadcast_tx]);
}
if let Some(ChannelPhase::Funded(chan)) = chan_option {
if let Ok(update) = self.get_channel_update_for_broadcast(&chan) {
- let mut peer_state_lock = peer_state_mutex.lock().unwrap();
- let peer_state = &mut *peer_state_lock;
- peer_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ let mut pending_broadcast_messages = self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate {
msg: update
});
}
- self.issue_channel_close_events(&chan.context, ClosureReason::CooperativeClosure);
}
mem::drop(per_peer_state);
if let Some(shutdown_result) = shutdown_result {
// Note that the ChannelManager is NOT re-persisted on disk after this (unless we error
// closing a channel), so any changes are likely to be lost on restart!
- let decoded_hop_res = self.decode_update_add_htlc_onion(msg);
+ let decoded_hop_res = self.decode_update_add_htlc_onion(msg, counterparty_node_id);
let per_peer_state = self.per_peer_state.read().unwrap();
let peer_state_mutex = per_peer_state.get(counterparty_node_id)
.ok_or_else(|| {
match peer_state.channel_by_id.entry(msg.channel_id) {
hash_map::Entry::Occupied(mut chan_phase_entry) => {
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
- let pending_forward_info = match decoded_hop_res {
+ let mut pending_forward_info = match decoded_hop_res {
Ok((next_hop, shared_secret, next_packet_pk_opt)) =>
- self.construct_pending_htlc_status(msg, shared_secret, next_hop,
- chan.context.config().accept_underpaying_htlcs, next_packet_pk_opt),
+ self.construct_pending_htlc_status(
+ msg, counterparty_node_id, shared_secret, next_hop,
+ chan.context.config().accept_underpaying_htlcs, next_packet_pk_opt,
+ ),
Err(e) => PendingHTLCStatus::Fail(e)
};
- let create_pending_htlc_status = |chan: &Channel<SP>, 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 {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ // 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.
+ if let Err((_, error_code)) = chan.can_accept_incoming_htlc(&msg, &self.fee_estimator, &logger) {
+ if msg.blinding_point.is_some() {
+ pending_forward_info = PendingHTLCStatus::Fail(HTLCFailureMsg::Malformed(
+ msgs::UpdateFailMalformedHTLC {
channel_id: msg.channel_id,
htlc_id: msg.htlc_id,
- reason
- };
- PendingHTLCStatus::Fail(HTLCFailureMsg::Relay(msg))
- },
- _ => pending_forward_info
+ sha256_of_onion: [0; 32],
+ failure_code: INVALID_ONION_BLINDING,
+ }
+ ))
+ } else {
+ match pending_forward_info {
+ PendingHTLCStatus::Forward(PendingHTLCInfo {
+ ref incoming_shared_secret, ref routing, ..
+ }) => {
+ let reason = if routing.blinded_failure().is_some() {
+ HTLCFailReason::reason(INVALID_ONION_BLINDING, vec![0; 32])
+ } else 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
+ };
+ pending_forward_info = PendingHTLCStatus::Fail(HTLCFailureMsg::Relay(msg));
+ },
+ _ => {},
+ }
}
- };
- try_chan_phase_entry!(self, chan.update_add_htlc(&msg, pending_forward_info, create_pending_htlc_status, &self.fee_estimator, &self.logger), chan_phase_entry);
+ }
+ try_chan_phase_entry!(self, chan.update_add_htlc(&msg, pending_forward_info), chan_phase_entry);
} else {
return try_chan_phase_entry!(self, Err(ChannelError::Close(
"Got an update_add_htlc message for an unfunded channel!".into())), chan_phase_entry);
fn internal_update_fulfill_htlc(&self, counterparty_node_id: &PublicKey, msg: &msgs::UpdateFulfillHTLC) -> Result<(), MsgHandleErrInternal> {
let funding_txo;
- let (htlc_source, forwarded_htlc_value) = {
+ let next_user_channel_id;
+ let (htlc_source, forwarded_htlc_value, skimmed_fee_msat) = {
let per_peer_state = self.per_peer_state.read().unwrap();
let peer_state_mutex = per_peer_state.get(counterparty_node_id)
.ok_or_else(|| {
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
let res = try_chan_phase_entry!(self, chan.update_fulfill_htlc(&msg), chan_phase_entry);
if let HTLCSource::PreviousHopData(prev_hop) = &res.0 {
- log_trace!(self.logger,
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ log_trace!(logger,
"Holding the next revoke_and_ack from {} until the preimage is durably persisted in the inbound edge's ChannelMonitor",
msg.channel_id);
peer_state.actions_blocking_raa_monitor_updates.entry(msg.channel_id)
// outbound HTLC is claimed. This is guaranteed to all complete before we
// process the RAA as messages are processed from single peers serially.
funding_txo = chan.context.get_funding_txo().expect("We won't accept a fulfill until funded");
+ next_user_channel_id = chan.context.get_user_id();
res
} else {
return try_chan_phase_entry!(self, Err(ChannelError::Close(
hash_map::Entry::Vacant(_) => return Err(MsgHandleErrInternal::send_err_msg_no_close(format!("Got a message for a channel from the wrong node! No such channel for the passed counterparty_node_id {}", counterparty_node_id), msg.channel_id))
}
};
- self.claim_funds_internal(htlc_source, msg.payment_preimage.clone(), Some(forwarded_htlc_value), false, false, Some(*counterparty_node_id), funding_txo);
+ self.claim_funds_internal(htlc_source, msg.payment_preimage.clone(),
+ Some(forwarded_htlc_value), skimmed_fee_msat, false, false, Some(*counterparty_node_id),
+ funding_txo, msg.channel_id, Some(next_user_channel_id),
+ );
+
Ok(())
}
match peer_state.channel_by_id.entry(msg.channel_id) {
hash_map::Entry::Occupied(mut chan_phase_entry) => {
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
let funding_txo = chan.context.get_funding_txo();
- let monitor_update_opt = try_chan_phase_entry!(self, chan.commitment_signed(&msg, &self.logger), chan_phase_entry);
+ let monitor_update_opt = try_chan_phase_entry!(self, chan.commitment_signed(&msg, &&logger), chan_phase_entry);
if let Some(monitor_update) = monitor_update_opt {
handle_new_monitor_update!(self, funding_txo.unwrap(), monitor_update, peer_state_lock,
peer_state, per_peer_state, chan);
}
}
+ fn push_decode_update_add_htlcs(&self, mut update_add_htlcs: (u64, Vec<msgs::UpdateAddHTLC>)) {
+ let mut push_forward_event = self.forward_htlcs.lock().unwrap().is_empty();
+ let mut decode_update_add_htlcs = self.decode_update_add_htlcs.lock().unwrap();
+ push_forward_event &= decode_update_add_htlcs.is_empty();
+ let scid = update_add_htlcs.0;
+ match decode_update_add_htlcs.entry(scid) {
+ hash_map::Entry::Occupied(mut e) => { e.get_mut().append(&mut update_add_htlcs.1); },
+ hash_map::Entry::Vacant(e) => { e.insert(update_add_htlcs.1); },
+ }
+ if push_forward_event { self.push_pending_forwards_ev(); }
+ }
+
#[inline]
- fn forward_htlcs(&self, per_source_pending_forwards: &mut [(u64, OutPoint, u128, Vec<(PendingHTLCInfo, u64)>)]) {
- for &mut (prev_short_channel_id, prev_funding_outpoint, prev_user_channel_id, ref mut pending_forwards) in per_source_pending_forwards {
- let mut push_forward_event = false;
+ fn forward_htlcs(&self, per_source_pending_forwards: &mut [(u64, OutPoint, ChannelId, u128, Vec<(PendingHTLCInfo, u64)>)]) {
+ let push_forward_event = self.forward_htlcs_without_forward_event(per_source_pending_forwards);
+ if push_forward_event { self.push_pending_forwards_ev() }
+ }
+
+ #[inline]
+ fn forward_htlcs_without_forward_event(&self, per_source_pending_forwards: &mut [(u64, OutPoint, ChannelId, u128, Vec<(PendingHTLCInfo, u64)>)]) -> bool {
+ let mut push_forward_event = false;
+ for &mut (prev_short_channel_id, prev_funding_outpoint, prev_channel_id, prev_user_channel_id, ref mut pending_forwards) in per_source_pending_forwards {
let mut new_intercept_events = VecDeque::new();
let mut failed_intercept_forwards = Vec::new();
if !pending_forwards.is_empty() {
// Pull this now to avoid introducing a lock order with `forward_htlcs`.
let is_our_scid = self.short_to_chan_info.read().unwrap().contains_key(&scid);
+ let decode_update_add_htlcs_empty = self.decode_update_add_htlcs.lock().unwrap().is_empty();
let mut forward_htlcs = self.forward_htlcs.lock().unwrap();
let forward_htlcs_empty = forward_htlcs.is_empty();
match forward_htlcs.entry(scid) {
hash_map::Entry::Occupied(mut entry) => {
entry.get_mut().push(HTLCForwardInfo::AddHTLC(PendingAddHTLCInfo {
- prev_short_channel_id, prev_funding_outpoint, prev_htlc_id, prev_user_channel_id, forward_info }));
+ prev_short_channel_id, prev_funding_outpoint, prev_channel_id, prev_htlc_id, prev_user_channel_id, forward_info }));
},
hash_map::Entry::Vacant(entry) => {
if !is_our_scid && forward_info.incoming_amt_msat.is_some() &&
intercept_id
}, None));
entry.insert(PendingAddHTLCInfo {
- prev_short_channel_id, prev_funding_outpoint, prev_htlc_id, prev_user_channel_id, forward_info });
+ prev_short_channel_id, prev_funding_outpoint, prev_channel_id, prev_htlc_id, prev_user_channel_id, forward_info });
},
hash_map::Entry::Occupied(_) => {
- log_info!(self.logger, "Failed to forward incoming HTLC: detected duplicate intercepted payment over short channel id {}", scid);
+ let logger = WithContext::from(&self.logger, None, Some(prev_channel_id));
+ log_info!(logger, "Failed to forward incoming HTLC: detected duplicate intercepted payment over short channel id {}", scid);
let htlc_source = HTLCSource::PreviousHopData(HTLCPreviousHopData {
short_channel_id: prev_short_channel_id,
user_channel_id: Some(prev_user_channel_id),
outpoint: prev_funding_outpoint,
+ channel_id: prev_channel_id,
htlc_id: prev_htlc_id,
incoming_packet_shared_secret: forward_info.incoming_shared_secret,
phantom_shared_secret: None,
+ blinded_failure: forward_info.routing.blinded_failure(),
});
failed_intercept_forwards.push((htlc_source, forward_info.payment_hash,
} else {
// We don't want to generate a PendingHTLCsForwardable event if only intercepted
// payments are being processed.
- if forward_htlcs_empty {
- push_forward_event = true;
- }
+ push_forward_event |= forward_htlcs_empty && decode_update_add_htlcs_empty;
entry.insert(vec!(HTLCForwardInfo::AddHTLC(PendingAddHTLCInfo {
- prev_short_channel_id, prev_funding_outpoint, prev_htlc_id, prev_user_channel_id, forward_info })));
+ prev_short_channel_id, prev_funding_outpoint, prev_channel_id, prev_htlc_id, prev_user_channel_id, forward_info })));
}
}
}
}
for (htlc_source, payment_hash, failure_reason, destination) in failed_intercept_forwards.drain(..) {
- self.fail_htlc_backwards_internal(&htlc_source, &payment_hash, &failure_reason, destination);
+ push_forward_event |= self.fail_htlc_backwards_internal_without_forward_event(&htlc_source, &payment_hash, &failure_reason, destination);
}
if !new_intercept_events.is_empty() {
let mut events = self.pending_events.lock().unwrap();
events.append(&mut new_intercept_events);
}
- if push_forward_event { self.push_pending_forwards_ev() }
}
+ push_forward_event
}
fn push_pending_forwards_ev(&self) {
/// the [`ChannelMonitorUpdate`] in question.
fn raa_monitor_updates_held(&self,
actions_blocking_raa_monitor_updates: &BTreeMap<ChannelId, Vec<RAAMonitorUpdateBlockingAction>>,
- channel_funding_outpoint: OutPoint, counterparty_node_id: PublicKey
+ channel_funding_outpoint: OutPoint, channel_id: ChannelId, counterparty_node_id: PublicKey
) -> bool {
actions_blocking_raa_monitor_updates
- .get(&channel_funding_outpoint.to_channel_id()).map(|v| !v.is_empty()).unwrap_or(false)
+ .get(&channel_id).map(|v| !v.is_empty()).unwrap_or(false)
|| self.pending_events.lock().unwrap().iter().any(|(_, action)| {
action == &Some(EventCompletionAction::ReleaseRAAChannelMonitorUpdate {
channel_funding_outpoint,
+ channel_id,
counterparty_node_id,
})
})
if let Some(chan) = peer_state.channel_by_id.get(&channel_id) {
return self.raa_monitor_updates_held(&peer_state.actions_blocking_raa_monitor_updates,
- chan.context().get_funding_txo().unwrap(), counterparty_node_id);
+ chan.context().get_funding_txo().unwrap(), channel_id, counterparty_node_id);
}
}
false
match peer_state.channel_by_id.entry(msg.channel_id) {
hash_map::Entry::Occupied(mut chan_phase_entry) => {
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
let funding_txo_opt = chan.context.get_funding_txo();
let mon_update_blocked = if let Some(funding_txo) = funding_txo_opt {
self.raa_monitor_updates_held(
- &peer_state.actions_blocking_raa_monitor_updates, funding_txo,
+ &peer_state.actions_blocking_raa_monitor_updates, funding_txo, msg.channel_id,
*counterparty_node_id)
} else { false };
let (htlcs_to_fail, monitor_update_opt) = try_chan_phase_entry!(self,
- chan.revoke_and_ack(&msg, &self.fee_estimator, &self.logger, mon_update_blocked), chan_phase_entry);
+ chan.revoke_and_ack(&msg, &self.fee_estimator, &&logger, mon_update_blocked), chan_phase_entry);
if let Some(monitor_update) = monitor_update_opt {
let funding_txo = funding_txo_opt
.expect("Funding outpoint must have been set for RAA handling to succeed");
match peer_state.channel_by_id.entry(msg.channel_id) {
hash_map::Entry::Occupied(mut chan_phase_entry) => {
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
- try_chan_phase_entry!(self, chan.update_fee(&self.fee_estimator, &msg, &self.logger), chan_phase_entry);
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ try_chan_phase_entry!(self, chan.update_fee(&self.fee_estimator, &msg, &&logger), chan_phase_entry);
} else {
return try_chan_phase_entry!(self, Err(ChannelError::Close(
"Got an update_fee message for an unfunded channel!".into())), chan_phase_entry);
peer_state.pending_msg_events.push(events::MessageSendEvent::BroadcastChannelAnnouncement {
msg: try_chan_phase_entry!(self, chan.announcement_signatures(
- &self.node_signer, self.chain_hash, self.best_block.read().unwrap().height(),
+ &self.node_signer, self.chain_hash, self.best_block.read().unwrap().height,
msg, &self.default_configuration
), chan_phase_entry),
// Note that announcement_signatures fails if the channel cannot be announced,
if were_node_one == msg_from_node_one {
return Ok(NotifyOption::SkipPersistNoEvents);
} else {
- log_debug!(self.logger, "Received channel_update {:?} for channel {}.", msg, chan_id);
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ log_debug!(logger, "Received channel_update {:?} for channel {}.", msg, chan_id);
let did_change = try_chan_phase_entry!(self, chan.channel_update(&msg), chan_phase_entry);
// If nothing changed after applying their update, we don't need to bother
// persisting.
}
fn internal_channel_reestablish(&self, counterparty_node_id: &PublicKey, msg: &msgs::ChannelReestablish) -> Result<NotifyOption, MsgHandleErrInternal> {
- let htlc_forwards;
let need_lnd_workaround = {
let per_peer_state = self.per_peer_state.read().unwrap();
msg.channel_id
)
})?;
+ let logger = WithContext::from(&self.logger, Some(*counterparty_node_id), Some(msg.channel_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) {
// 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_phase_entry!(self, chan.channel_reestablish(
- msg, &self.logger, &self.node_signer, self.chain_hash,
+ msg, &&logger, &self.node_signer, self.chain_hash,
&self.default_configuration, &*self.best_block.read().unwrap()), chan_phase_entry);
let mut channel_update = None;
if let Some(msg) = responses.shutdown_msg {
}
}
let need_lnd_workaround = chan.context.workaround_lnd_bug_4006.take();
- htlc_forwards = self.handle_channel_resumption(
+ let (htlc_forwards, decode_update_add_htlcs) = self.handle_channel_resumption(
&mut peer_state.pending_msg_events, chan, responses.raa, responses.commitment_update, responses.order,
- Vec::new(), None, responses.channel_ready, responses.announcement_sigs);
+ Vec::new(), Vec::new(), None, responses.channel_ready, responses.announcement_sigs);
+ debug_assert!(htlc_forwards.is_none());
+ debug_assert!(decode_update_add_htlcs.is_none());
if let Some(upd) = channel_update {
peer_state.pending_msg_events.push(upd);
}
}
},
hash_map::Entry::Vacant(_) => {
- log_debug!(self.logger, "Sending bogus ChannelReestablish for unknown channel {} to force channel closure",
- log_bytes!(msg.channel_id.0));
+ log_debug!(logger, "Sending bogus ChannelReestablish for unknown channel {} to force channel closure",
+ msg.channel_id);
// Unfortunately, lnd doesn't force close on errors
// (https://github.com/lightningnetwork/lnd/blob/abb1e3463f3a83bbb843d5c399869dbe930ad94f/htlcswitch/link.go#L2119).
// One of the few ways to get an lnd counterparty to force close is by
}
};
- let mut persist = NotifyOption::SkipPersistHandleEvents;
- if let Some(forwards) = htlc_forwards {
- self.forward_htlcs(&mut [forwards][..]);
- persist = NotifyOption::DoPersist;
- }
-
if let Some(channel_ready_msg) = need_lnd_workaround {
self.internal_channel_ready(counterparty_node_id, &channel_ready_msg)?;
}
- Ok(persist)
+ Ok(NotifyOption::SkipPersistHandleEvents)
}
/// Process pending events from the [`chain::Watch`], returning whether any events were processed.
let mut failed_channels = Vec::new();
let mut pending_monitor_events = self.chain_monitor.release_pending_monitor_events();
let has_pending_monitor_events = !pending_monitor_events.is_empty();
- for (funding_outpoint, mut monitor_events, counterparty_node_id) in pending_monitor_events.drain(..) {
+ for (funding_outpoint, channel_id, mut monitor_events, counterparty_node_id) in pending_monitor_events.drain(..) {
for monitor_event in monitor_events.drain(..) {
match monitor_event {
MonitorEvent::HTLCEvent(htlc_update) => {
+ let logger = WithContext::from(&self.logger, counterparty_node_id, Some(channel_id));
if let Some(preimage) = htlc_update.payment_preimage {
- log_trace!(self.logger, "Claiming HTLC with preimage {} from our monitor", preimage);
- self.claim_funds_internal(htlc_update.source, preimage, htlc_update.htlc_value_satoshis.map(|v| v * 1000), true, false, counterparty_node_id, funding_outpoint);
+ log_trace!(logger, "Claiming HTLC with preimage {} from our monitor", preimage);
+ self.claim_funds_internal(htlc_update.source, preimage,
+ htlc_update.htlc_value_satoshis.map(|v| v * 1000), None, true,
+ false, counterparty_node_id, funding_outpoint, channel_id, None);
} else {
- log_trace!(self.logger, "Failing HTLC with hash {} from our monitor", &htlc_update.payment_hash);
- let receiver = HTLCDestination::NextHopChannel { node_id: counterparty_node_id, channel_id: funding_outpoint.to_channel_id() };
+ log_trace!(logger, "Failing HTLC with hash {} from our monitor", &htlc_update.payment_hash);
+ let receiver = HTLCDestination::NextHopChannel { node_id: counterparty_node_id, channel_id };
let reason = HTLCFailReason::from_failure_code(0x4000 | 8);
self.fail_htlc_backwards_internal(&htlc_update.source, &htlc_update.payment_hash, &reason, receiver);
}
},
- MonitorEvent::HolderForceClosed(funding_outpoint) => {
+ MonitorEvent::HolderForceClosed(_) | MonitorEvent::HolderForceClosedWithInfo { .. } => {
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()
+ // monitor event, this and the outpoint_to_peer map should be removed.
+ let outpoint_to_peer = self.outpoint_to_peer.lock().unwrap();
+ outpoint_to_peer.get(&funding_outpoint).cloned()
}
};
if let Some(counterparty_node_id) = counterparty_node_id_opt {
let mut peer_state_lock = peer_state_mutex.lock().unwrap();
let peer_state = &mut *peer_state_lock;
let pending_msg_events = &mut peer_state.pending_msg_events;
- if let hash_map::Entry::Occupied(chan_phase_entry) = peer_state.channel_by_id.entry(funding_outpoint.to_channel_id()) {
+ if let hash_map::Entry::Occupied(chan_phase_entry) = peer_state.channel_by_id.entry(channel_id) {
if let ChannelPhase::Funded(mut chan) = remove_channel_phase!(self, chan_phase_entry) {
- failed_channels.push(chan.context.force_shutdown(false));
+ let reason = if let MonitorEvent::HolderForceClosedWithInfo { reason, .. } = monitor_event {
+ reason
+ } else {
+ ClosureReason::HolderForceClosed
+ };
+ failed_channels.push(chan.context.force_shutdown(false, reason.clone()));
if let Ok(update) = self.get_channel_update_for_broadcast(&chan) {
- pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ let mut pending_broadcast_messages = self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate {
msg: update
});
}
- self.issue_channel_close_events(&chan.context, ClosureReason::HolderForceClosed);
pending_msg_events.push(events::MessageSendEvent::HandleError {
node_id: chan.context.get_counterparty_node_id(),
action: msgs::ErrorAction::DisconnectPeer {
- msg: Some(msgs::ErrorMessage { channel_id: chan.context.channel_id(), data: "Channel force-closed".to_owned() })
+ msg: Some(msgs::ErrorMessage { channel_id: chan.context.channel_id(), data: reason.to_string() })
},
});
}
}
}
},
- MonitorEvent::Completed { funding_txo, monitor_update_id } => {
- self.channel_monitor_updated(&funding_txo, monitor_update_id, counterparty_node_id.as_ref());
+ MonitorEvent::Completed { funding_txo, channel_id, monitor_update_id } => {
+ self.channel_monitor_updated(&funding_txo, &channel_id, monitor_update_id, counterparty_node_id.as_ref());
},
}
}
let counterparty_node_id = chan.context.get_counterparty_node_id();
let funding_txo = chan.context.get_funding_txo();
let (monitor_opt, holding_cell_failed_htlcs) =
- chan.maybe_free_holding_cell_htlcs(&self.fee_estimator, &self.logger);
+ chan.maybe_free_holding_cell_htlcs(&self.fee_estimator, &&WithChannelContext::from(&self.logger, &chan.context));
if !holding_cell_failed_htlcs.is_empty() {
failed_htlcs.push((holding_cell_failed_htlcs, *channel_id, counterparty_node_id));
}
/// attempted in every channel, or in the specifically provided channel.
///
/// [`ChannelSigner`]: crate::sign::ChannelSigner
- #[cfg(test)] // This is only implemented for one signer method, and should be private until we
- // actually finish implementing it fully.
+ #[cfg(async_signing)]
pub fn signer_unblocked(&self, channel_opt: Option<(PublicKey, ChannelId)>) {
let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
let unblock_chan = |phase: &mut ChannelPhase<SP>, pending_msg_events: &mut Vec<MessageSendEvent>| {
let node_id = phase.context().get_counterparty_node_id();
- if let ChannelPhase::Funded(chan) = phase {
- let msgs = chan.signer_maybe_unblocked(&self.logger);
- if let Some(updates) = msgs.commitment_update {
- pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
- node_id,
- updates,
- });
- }
- if let Some(msg) = msgs.funding_signed {
- pending_msg_events.push(events::MessageSendEvent::SendFundingSigned {
- node_id,
- msg,
- });
- }
- if let Some(msg) = msgs.funding_created {
- pending_msg_events.push(events::MessageSendEvent::SendFundingCreated {
- node_id,
- msg,
- });
+ match phase {
+ ChannelPhase::Funded(chan) => {
+ let msgs = chan.signer_maybe_unblocked(&self.logger);
+ if let Some(updates) = msgs.commitment_update {
+ pending_msg_events.push(events::MessageSendEvent::UpdateHTLCs {
+ node_id,
+ updates,
+ });
+ }
+ if let Some(msg) = msgs.funding_signed {
+ pending_msg_events.push(events::MessageSendEvent::SendFundingSigned {
+ node_id,
+ msg,
+ });
+ }
+ if let Some(msg) = msgs.channel_ready {
+ send_channel_ready!(self, pending_msg_events, chan, msg);
+ }
}
- if let Some(msg) = msgs.channel_ready {
- send_channel_ready!(self, pending_msg_events, chan, msg);
+ ChannelPhase::UnfundedOutboundV1(chan) => {
+ if let Some(msg) = chan.signer_maybe_unblocked(&self.logger) {
+ pending_msg_events.push(events::MessageSendEvent::SendFundingCreated {
+ node_id,
+ msg,
+ });
+ }
}
+ ChannelPhase::UnfundedInboundV1(_) => {},
}
};
peer_state.channel_by_id.retain(|channel_id, phase| {
match phase {
ChannelPhase::Funded(chan) => {
- match chan.maybe_propose_closing_signed(&self.fee_estimator, &self.logger) {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ match chan.maybe_propose_closing_signed(&self.fee_estimator, &&logger) {
Ok((msg_opt, tx_opt, shutdown_result_opt)) => {
if let Some(msg) = msg_opt {
has_update = true;
// 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 {
+ let mut pending_broadcast_messages = self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate {
msg: update
});
}
- self.issue_channel_close_events(&chan.context, ClosureReason::CooperativeClosure);
-
- log_info!(self.logger, "Broadcasting {}", log_tx!(tx));
+ log_info!(logger, "Broadcasting {}", log_tx!(tx));
self.tx_broadcaster.broadcast_transactions(&[&tx]);
update_maps_on_chan_removal!(self, &chan.context);
false
// Channel::force_shutdown tries to make us do) as we may still be in initialization,
// so we track the update internally and handle it when the user next calls
// timer_tick_occurred, guaranteeing we're running normally.
- if let Some((counterparty_node_id, funding_txo, update)) = failure.monitor_update.take() {
+ if let Some((counterparty_node_id, funding_txo, channel_id, update)) = failure.monitor_update.take() {
assert_eq!(update.updates.len(), 1);
if let ChannelMonitorUpdateStep::ChannelForceClosed { should_broadcast } = update.updates[0] {
assert!(should_broadcast);
} else { unreachable!(); }
self.pending_background_events.lock().unwrap().push(
BackgroundEvent::MonitorUpdateRegeneratedOnStartup {
- counterparty_node_id, funding_txo, update
+ counterparty_node_id, funding_txo, update, channel_id,
});
}
self.finish_close_channel(failure);
}
}
+}
+macro_rules! create_offer_builder { ($self: ident, $builder: ty) => {
/// Creates an [`OfferBuilder`] such that the [`Offer`] it builds is recognized by the
/// [`ChannelManager`] when handling [`InvoiceRequest`] messages for the offer. The offer will
/// not have an expiration unless otherwise set on the builder.
///
/// # Privacy
///
- /// Uses a one-hop [`BlindedPath`] for the offer with [`ChannelManager::get_our_node_id`] as the
- /// introduction node and a derived signing pubkey for recipient privacy. As such, currently,
- /// the node must be announced. Otherwise, there is no way to find a path to the introduction
- /// node in order to send the [`InvoiceRequest`].
+ /// Uses [`MessageRouter::create_blinded_paths`] to construct a [`BlindedPath`] for the offer.
+ /// However, if one is not found, uses a one-hop [`BlindedPath`] with
+ /// [`ChannelManager::get_our_node_id`] as the introduction node instead. In the latter case,
+ /// the node must be announced, otherwise, there is no way to find a path to the introduction in
+ /// order to send the [`InvoiceRequest`].
+ ///
+ /// Also, uses a derived signing pubkey in the offer for recipient privacy.
///
/// # Limitations
///
/// Requires a direct connection to the introduction node in the responding [`InvoiceRequest`]'s
/// reply path.
///
+ /// # Errors
+ ///
+ /// Errors if the parameterized [`Router`] is unable to create a blinded path for the offer.
+ ///
/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
///
/// [`Offer`]: crate::offers::offer::Offer
/// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
pub fn create_offer_builder(
- &self, description: String
- ) -> OfferBuilder<DerivedMetadata, secp256k1::All> {
- let node_id = self.get_our_node_id();
- let expanded_key = &self.inbound_payment_key;
- let entropy = &*self.entropy_source;
- let secp_ctx = &self.secp_ctx;
- let path = self.create_one_hop_blinded_path();
+ &$self, description: String
+ ) -> Result<$builder, Bolt12SemanticError> {
+ let node_id = $self.get_our_node_id();
+ let expanded_key = &$self.inbound_payment_key;
+ let entropy = &*$self.entropy_source;
+ let secp_ctx = &$self.secp_ctx;
+
+ let path = $self.create_blinded_path().map_err(|_| Bolt12SemanticError::MissingPaths)?;
+ let builder = OfferBuilder::deriving_signing_pubkey(
+ description, node_id, expanded_key, entropy, secp_ctx
+ )
+ .chain_hash($self.chain_hash)
+ .path(path);
- OfferBuilder::deriving_signing_pubkey(description, node_id, expanded_key, entropy, secp_ctx)
- .chain_hash(self.chain_hash)
- .path(path)
+ Ok(builder.into())
}
+} }
+macro_rules! create_refund_builder { ($self: ident, $builder: ty) => {
/// Creates a [`RefundBuilder`] such that the [`Refund`] it builds is recognized by the
/// [`ChannelManager`] when handling [`Bolt12Invoice`] messages for the refund.
///
///
/// # Privacy
///
- /// Uses a one-hop [`BlindedPath`] for the refund with [`ChannelManager::get_our_node_id`] as
- /// the introduction node and a derived payer id for payer privacy. As such, currently, the
- /// node must be announced. Otherwise, there is no way to find a path to the introduction node
- /// in order to send the [`Bolt12Invoice`].
+ /// Uses [`MessageRouter::create_blinded_paths`] to construct a [`BlindedPath`] for the refund.
+ /// However, if one is not found, uses a one-hop [`BlindedPath`] with
+ /// [`ChannelManager::get_our_node_id`] as the introduction node instead. In the latter case,
+ /// the node must be announced, otherwise, there is no way to find a path to the introduction in
+ /// order to send the [`Bolt12Invoice`].
+ ///
+ /// Also, uses a derived payer id in the refund for payer privacy.
///
/// # Limitations
///
///
/// # Errors
///
- /// Errors if a duplicate `payment_id` is provided given the caveats in the aforementioned link
- /// or if `amount_msats` is invalid.
+ /// Errors if:
+ /// - a duplicate `payment_id` is provided given the caveats in the aforementioned link,
+ /// - `amount_msats` is invalid, or
+ /// - the parameterized [`Router`] is unable to create a blinded path for the refund.
///
/// This is not exported to bindings users as builder patterns don't map outside of move semantics.
///
/// [`Refund`]: crate::offers::refund::Refund
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
/// [`Bolt12Invoice::payment_paths`]: crate::offers::invoice::Bolt12Invoice::payment_paths
+ /// [Avoiding Duplicate Payments]: #avoiding-duplicate-payments
pub fn create_refund_builder(
- &self, description: String, amount_msats: u64, absolute_expiry: Duration,
+ &$self, description: String, amount_msats: u64, absolute_expiry: Duration,
payment_id: PaymentId, retry_strategy: Retry, max_total_routing_fee_msat: Option<u64>
- ) -> Result<RefundBuilder<secp256k1::All>, Bolt12SemanticError> {
- let node_id = self.get_our_node_id();
- let expanded_key = &self.inbound_payment_key;
- let entropy = &*self.entropy_source;
- let secp_ctx = &self.secp_ctx;
- let path = self.create_one_hop_blinded_path();
+ ) -> Result<$builder, Bolt12SemanticError> {
+ let node_id = $self.get_our_node_id();
+ let expanded_key = &$self.inbound_payment_key;
+ let entropy = &*$self.entropy_source;
+ let secp_ctx = &$self.secp_ctx;
+ let path = $self.create_blinded_path().map_err(|_| Bolt12SemanticError::MissingPaths)?;
let builder = RefundBuilder::deriving_payer_id(
description, node_id, expanded_key, entropy, secp_ctx, amount_msats, payment_id
)?
- .chain_hash(self.chain_hash)
+ .chain_hash($self.chain_hash)
.absolute_expiry(absolute_expiry)
.path(path);
+ let _persistence_guard = PersistenceNotifierGuard::notify_on_drop($self);
+
let expiration = StaleExpiration::AbsoluteTimeout(absolute_expiry);
- self.pending_outbound_payments
+ $self.pending_outbound_payments
.add_new_awaiting_invoice(
payment_id, expiration, retry_strategy, max_total_routing_fee_msat,
)
.map_err(|_| Bolt12SemanticError::DuplicatePaymentId)?;
- Ok(builder)
+ Ok(builder.into())
}
+} }
+
+impl<M: Deref, T: Deref, ES: Deref, NS: Deref, SP: Deref, F: Deref, R: Deref, L: Deref> ChannelManager<M, T, ES, NS, SP, F, R, L>
+where
+ M::Target: chain::Watch<<SP::Target as SignerProvider>::EcdsaSigner>,
+ T::Target: BroadcasterInterface,
+ ES::Target: EntropySource,
+ NS::Target: NodeSigner,
+ SP::Target: SignerProvider,
+ F::Target: FeeEstimator,
+ R::Target: Router,
+ L::Target: Logger,
+{
+ #[cfg(not(c_bindings))]
+ create_offer_builder!(self, OfferBuilder<DerivedMetadata, secp256k1::All>);
+ #[cfg(not(c_bindings))]
+ create_refund_builder!(self, RefundBuilder<secp256k1::All>);
+
+ #[cfg(c_bindings)]
+ create_offer_builder!(self, OfferWithDerivedMetadataBuilder);
+ #[cfg(c_bindings)]
+ create_refund_builder!(self, RefundMaybeWithDerivedMetadataBuilder);
/// Pays for an [`Offer`] using the given parameters by creating an [`InvoiceRequest`] and
/// enqueuing it to be sent via an onion message. [`ChannelManager`] will pay the actual
///
/// # Errors
///
- /// Errors if a duplicate `payment_id` is provided given the caveats in the aforementioned link
- /// or if the provided parameters are invalid for the offer.
+ /// Errors if:
+ /// - a duplicate `payment_id` is provided given the caveats in the aforementioned link,
+ /// - the provided parameters are invalid for the offer,
+ /// - the offer is for an unsupported chain, or
+ /// - the parameterized [`Router`] is unable to create a blinded reply path for the invoice
+ /// request.
///
/// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
/// [`InvoiceRequest::quantity`]: crate::offers::invoice_request::InvoiceRequest::quantity
let entropy = &*self.entropy_source;
let secp_ctx = &self.secp_ctx;
- let builder = offer
+ let builder: InvoiceRequestBuilder<DerivedPayerId, secp256k1::All> = offer
.request_invoice_deriving_payer_id(expanded_key, entropy, secp_ctx, payment_id)?
- .chain_hash(self.chain_hash)?;
+ .into();
+ let builder = builder.chain_hash(self.chain_hash)?;
+
let builder = match quantity {
None => builder,
Some(quantity) => builder.quantity(quantity)?,
None => builder,
Some(payer_note) => builder.payer_note(payer_note),
};
-
let invoice_request = builder.build_and_sign()?;
- let reply_path = self.create_one_hop_blinded_path();
+ let reply_path = self.create_blinded_path().map_err(|_| Bolt12SemanticError::MissingPaths)?;
+
+ let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
let expiration = StaleExpiration::TimerTicks(1);
self.pending_outbound_payments
///
/// The resulting invoice uses a [`PaymentHash`] recognized by the [`ChannelManager`] and a
/// [`BlindedPath`] containing the [`PaymentSecret`] needed to reconstruct the corresponding
- /// [`PaymentPreimage`].
+ /// [`PaymentPreimage`]. It is returned purely for informational purposes.
///
/// # Limitations
///
/// node meeting the aforementioned criteria, but there's no guarantee that they will be
/// received and no retries will be made.
///
+ /// # Errors
+ ///
+ /// Errors if:
+ /// - the refund is for an unsupported chain, or
+ /// - the parameterized [`Router`] is unable to create a blinded payment path or reply path for
+ /// the invoice.
+ ///
/// [`Bolt12Invoice`]: crate::offers::invoice::Bolt12Invoice
- pub fn request_refund_payment(&self, refund: &Refund) -> Result<(), Bolt12SemanticError> {
+ pub fn request_refund_payment(
+ &self, refund: &Refund
+ ) -> Result<Bolt12Invoice, Bolt12SemanticError> {
let expanded_key = &self.inbound_payment_key;
let entropy = &*self.entropy_source;
let secp_ctx = &self.secp_ctx;
let amount_msats = refund.amount_msats();
let relative_expiry = DEFAULT_RELATIVE_EXPIRY.as_secs() as u32;
+ if refund.chain() != self.chain_hash {
+ return Err(Bolt12SemanticError::UnsupportedChain);
+ }
+
+ let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
+
match self.create_inbound_payment(Some(amount_msats), relative_expiry, None) {
Ok((payment_hash, payment_secret)) => {
- let payment_paths = vec![
- self.create_one_hop_blinded_payment_path(payment_secret),
- ];
- #[cfg(not(feature = "no-std"))]
+ let payment_paths = self.create_blinded_payment_paths(amount_msats, payment_secret)
+ .map_err(|_| Bolt12SemanticError::MissingPaths)?;
+
+ #[cfg(feature = "std")]
let builder = refund.respond_using_derived_keys(
payment_paths, payment_hash, expanded_key, entropy
)?;
- #[cfg(feature = "no-std")]
+ #[cfg(not(feature = "std"))]
let created_at = Duration::from_secs(
self.highest_seen_timestamp.load(Ordering::Acquire) as u64
);
- #[cfg(feature = "no-std")]
+ #[cfg(not(feature = "std"))]
let builder = refund.respond_using_derived_keys_no_std(
payment_paths, payment_hash, created_at, expanded_key, entropy
)?;
+ let builder: InvoiceBuilder<DerivedSigningPubkey> = builder.into();
let invoice = builder.allow_mpp().build_and_sign(secp_ctx)?;
- let reply_path = self.create_one_hop_blinded_path();
+ let reply_path = self.create_blinded_path()
+ .map_err(|_| Bolt12SemanticError::MissingPaths)?;
let mut pending_offers_messages = self.pending_offers_messages.lock().unwrap();
if refund.paths().is_empty() {
let message = new_pending_onion_message(
- OffersMessage::Invoice(invoice),
+ OffersMessage::Invoice(invoice.clone()),
Destination::Node(refund.payer_id()),
Some(reply_path),
);
}
}
- Ok(())
+ Ok(invoice)
},
Err(()) => Err(Bolt12SemanticError::InvalidAmount),
}
inbound_payment::get_payment_preimage(payment_hash, payment_secret, &self.inbound_payment_key)
}
- /// Creates a one-hop blinded path with [`ChannelManager::get_our_node_id`] as the introduction
- /// node.
- fn create_one_hop_blinded_path(&self) -> BlindedPath {
- let entropy_source = self.entropy_source.deref();
+ /// Creates a blinded path by delegating to [`MessageRouter::create_blinded_paths`].
+ ///
+ /// Errors if the `MessageRouter` errors or returns an empty `Vec`.
+ fn create_blinded_path(&self) -> Result<BlindedPath, ()> {
+ let recipient = self.get_our_node_id();
let secp_ctx = &self.secp_ctx;
- BlindedPath::one_hop_for_message(self.get_our_node_id(), entropy_source, secp_ctx).unwrap()
+
+ let peers = self.per_peer_state.read().unwrap()
+ .iter()
+ .filter(|(_, peer)| peer.lock().unwrap().latest_features.supports_onion_messages())
+ .map(|(node_id, _)| *node_id)
+ .collect::<Vec<_>>();
+
+ self.router
+ .create_blinded_paths(recipient, peers, secp_ctx)
+ .and_then(|paths| paths.into_iter().next().ok_or(()))
}
- /// Creates a one-hop blinded path with [`ChannelManager::get_our_node_id`] as the introduction
- /// node.
- fn create_one_hop_blinded_payment_path(
- &self, payment_secret: PaymentSecret
- ) -> (BlindedPayInfo, BlindedPath) {
- let entropy_source = self.entropy_source.deref();
+ /// Creates multi-hop blinded payment paths for the given `amount_msats` by delegating to
+ /// [`Router::create_blinded_payment_paths`].
+ fn create_blinded_payment_paths(
+ &self, amount_msats: u64, payment_secret: PaymentSecret
+ ) -> Result<Vec<(BlindedPayInfo, BlindedPath)>, ()> {
let secp_ctx = &self.secp_ctx;
+ let first_hops = self.list_usable_channels();
let payee_node_id = self.get_our_node_id();
- let max_cltv_expiry = self.best_block.read().unwrap().height() + LATENCY_GRACE_PERIOD_BLOCKS;
+ let max_cltv_expiry = self.best_block.read().unwrap().height + CLTV_FAR_FAR_AWAY
+ + LATENCY_GRACE_PERIOD_BLOCKS;
let payee_tlvs = ReceiveTlvs {
payment_secret,
payment_constraints: PaymentConstraints {
htlc_minimum_msat: 1,
},
};
- // TODO: Err for overflow?
- BlindedPath::one_hop_for_payment(
- payee_node_id, payee_tlvs, entropy_source, secp_ctx
- ).unwrap()
+ self.router.create_blinded_payment_paths(
+ payee_node_id, first_hops, payee_tlvs, amount_msats, secp_ctx
+ )
}
/// Gets a fake short channel id for use in receiving [phantom node payments]. These fake scids
///
/// [phantom node payments]: crate::sign::PhantomKeysManager
pub fn get_phantom_scid(&self) -> u64 {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let short_to_chan_info = self.short_to_chan_info.read().unwrap();
loop {
let scid_candidate = fake_scid::Namespace::Phantom.get_fake_scid(best_block_height, &self.chain_hash, &self.fake_scid_rand_bytes, &self.entropy_source);
/// Note that this method is not guaranteed to return unique values, you may need to call it a few
/// times to get a unique scid.
pub fn get_intercept_scid(&self) -> u64 {
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
let short_to_chan_info = self.short_to_chan_info.read().unwrap();
loop {
let scid_candidate = fake_scid::Namespace::Intercept.get_fake_scid(best_block_height, &self.chain_hash, &self.fake_scid_rand_bytes, &self.entropy_source);
/// [`Event`] being handled) completes, this should be called to restore the channel to normal
/// operation. It will double-check that nothing *else* is also blocking the same channel from
/// making progress and then let any blocked [`ChannelMonitorUpdate`]s fly.
- fn handle_monitor_update_release(&self, counterparty_node_id: PublicKey, channel_funding_outpoint: OutPoint, mut completed_blocker: Option<RAAMonitorUpdateBlockingAction>) {
+ fn handle_monitor_update_release(&self, counterparty_node_id: PublicKey,
+ channel_funding_outpoint: OutPoint, channel_id: ChannelId,
+ mut completed_blocker: Option<RAAMonitorUpdateBlockingAction>) {
+
+ let logger = WithContext::from(
+ &self.logger, Some(counterparty_node_id), Some(channel_id),
+ );
loop {
let per_peer_state = self.per_peer_state.read().unwrap();
if let Some(peer_state_mtx) = per_peer_state.get(&counterparty_node_id) {
let mut peer_state_lck = peer_state_mtx.lock().unwrap();
let peer_state = &mut *peer_state_lck;
-
if let Some(blocker) = completed_blocker.take() {
// Only do this on the first iteration of the loop.
if let Some(blockers) = peer_state.actions_blocking_raa_monitor_updates
- .get_mut(&channel_funding_outpoint.to_channel_id())
+ .get_mut(&channel_id)
{
blockers.retain(|iter| iter != &blocker);
}
}
if self.raa_monitor_updates_held(&peer_state.actions_blocking_raa_monitor_updates,
- channel_funding_outpoint, counterparty_node_id) {
+ channel_funding_outpoint, channel_id, counterparty_node_id) {
// Check that, while holding the peer lock, we don't have anything else
// blocking monitor updates for this channel. If we do, release the monitor
// update(s) when those blockers complete.
- log_trace!(self.logger, "Delaying monitor unlock for channel {} as another channel's mon update needs to complete first",
- &channel_funding_outpoint.to_channel_id());
+ log_trace!(logger, "Delaying monitor unlock for channel {} as another channel's mon update needs to complete first",
+ &channel_id);
break;
}
- if let hash_map::Entry::Occupied(mut chan_phase_entry) = peer_state.channel_by_id.entry(channel_funding_outpoint.to_channel_id()) {
+ if let hash_map::Entry::Occupied(mut chan_phase_entry) = peer_state.channel_by_id.entry(
+ channel_id) {
if let ChannelPhase::Funded(chan) = chan_phase_entry.get_mut() {
debug_assert_eq!(chan.context.get_funding_txo().unwrap(), channel_funding_outpoint);
if let Some((monitor_update, further_update_exists)) = chan.unblock_next_blocked_monitor_update() {
- log_debug!(self.logger, "Unlocking monitor updating for channel {} and updating monitor",
- channel_funding_outpoint.to_channel_id());
+ log_debug!(logger, "Unlocking monitor updating for channel {} and updating monitor",
+ channel_id);
handle_new_monitor_update!(self, channel_funding_outpoint, monitor_update,
peer_state_lck, peer_state, per_peer_state, chan);
if further_update_exists {
// If there are more `ChannelMonitorUpdate`s to process, restart at the
// top of the loop.
- continue;
- }
- } else {
- log_trace!(self.logger, "Unlocked monitor updating for channel {} without monitors to update",
- channel_funding_outpoint.to_channel_id());
- }
- }
- }
- } else {
- log_debug!(self.logger,
- "Got a release post-RAA monitor update for peer {} but the channel is gone",
- log_pubkey!(counterparty_node_id));
- }
- break;
- }
- }
-
- fn handle_post_event_actions(&self, actions: Vec<EventCompletionAction>) {
- for action in actions {
- match action {
- EventCompletionAction::ReleaseRAAChannelMonitorUpdate {
- channel_funding_outpoint, counterparty_node_id
- } => {
- self.handle_monitor_update_release(counterparty_node_id, channel_funding_outpoint, None);
- }
- }
- }
- }
-
- /// Processes any events asynchronously in the order they were generated since the last call
- /// using the given event handler.
- ///
- /// See the trait-level documentation of [`EventsProvider`] for requirements.
- pub async fn process_pending_events_async<Future: core::future::Future, H: Fn(Event) -> Future>(
- &self, handler: H
- ) {
- let mut ev;
- process_events_body!(self, ev, { handler(ev).await });
- }
-}
-
-fn create_fwd_pending_htlc_info(
- msg: &msgs::UpdateAddHTLC, hop_data: msgs::InboundOnionPayload, hop_hmac: [u8; 32],
- new_packet_bytes: [u8; onion_utils::ONION_DATA_LEN], shared_secret: [u8; 32],
- next_packet_pubkey_opt: Option<Result<PublicKey, secp256k1::Error>>
-) -> Result<PendingHTLCInfo, InboundOnionErr> {
- debug_assert!(next_packet_pubkey_opt.is_some());
- let outgoing_packet = msgs::OnionPacket {
- version: 0,
- public_key: next_packet_pubkey_opt.unwrap_or(Err(secp256k1::Error::InvalidPublicKey)),
- hop_data: new_packet_bytes,
- hmac: hop_hmac,
- };
-
- let (short_channel_id, amt_to_forward, outgoing_cltv_value) = match hop_data {
- msgs::InboundOnionPayload::Forward { short_channel_id, amt_to_forward, outgoing_cltv_value } =>
- (short_channel_id, amt_to_forward, outgoing_cltv_value),
- msgs::InboundOnionPayload::Receive { .. } | msgs::InboundOnionPayload::BlindedReceive { .. } =>
- return Err(InboundOnionErr {
- msg: "Final Node OnionHopData provided for us as an intermediary node",
- err_code: 0x4000 | 22,
- err_data: Vec::new(),
- }),
- };
-
- Ok(PendingHTLCInfo {
- routing: PendingHTLCRouting::Forward {
- onion_packet: outgoing_packet,
- short_channel_id,
- },
- payment_hash: msg.payment_hash,
- incoming_shared_secret: shared_secret,
- incoming_amt_msat: Some(msg.amount_msat),
- outgoing_amt_msat: amt_to_forward,
- outgoing_cltv_value,
- skimmed_fee_msat: None,
- })
-}
-
-fn create_recv_pending_htlc_info(
- hop_data: msgs::InboundOnionPayload, shared_secret: [u8; 32], payment_hash: PaymentHash,
- amt_msat: u64, cltv_expiry: u32, phantom_shared_secret: Option<[u8; 32]>, allow_underpay: bool,
- counterparty_skimmed_fee_msat: Option<u64>, current_height: u32, accept_mpp_keysend: bool,
-) -> Result<PendingHTLCInfo, InboundOnionErr> {
- let (payment_data, keysend_preimage, custom_tlvs, onion_amt_msat, outgoing_cltv_value, payment_metadata) = match hop_data {
- msgs::InboundOnionPayload::Receive {
- payment_data, keysend_preimage, custom_tlvs, amt_msat, outgoing_cltv_value, payment_metadata, ..
- } =>
- (payment_data, keysend_preimage, custom_tlvs, amt_msat, outgoing_cltv_value, payment_metadata),
- msgs::InboundOnionPayload::BlindedReceive {
- amt_msat, total_msat, outgoing_cltv_value, payment_secret, ..
- } => {
- let payment_data = msgs::FinalOnionHopData { payment_secret, total_msat };
- (Some(payment_data), None, Vec::new(), amt_msat, outgoing_cltv_value, None)
- }
- msgs::InboundOnionPayload::Forward { .. } => {
- return Err(InboundOnionErr {
- err_code: 0x4000|22,
- err_data: Vec::new(),
- msg: "Got non final data with an HMAC of 0",
- })
- },
- };
- // final_incorrect_cltv_expiry
- if outgoing_cltv_value > cltv_expiry {
- return Err(InboundOnionErr {
- msg: "Upstream node set CLTV to less than the CLTV set by the sender",
- err_code: 18,
- err_data: cltv_expiry.to_be_bytes().to_vec()
- })
- }
- // final_expiry_too_soon
- // We have to have some headroom to broadcast on chain if we have the preimage, so make sure
- // we have at least HTLC_FAIL_BACK_BUFFER blocks to go.
- //
- // Also, ensure that, in the case of an unknown preimage for the received payment hash, our
- // payment logic has enough time to fail the HTLC backward before our onchain logic triggers a
- // channel closure (see HTLC_FAIL_BACK_BUFFER rationale).
- if cltv_expiry <= current_height + HTLC_FAIL_BACK_BUFFER + 1 {
- let mut err_data = Vec::with_capacity(12);
- err_data.extend_from_slice(&amt_msat.to_be_bytes());
- err_data.extend_from_slice(¤t_height.to_be_bytes());
- return Err(InboundOnionErr {
- err_code: 0x4000 | 15, err_data,
- msg: "The final CLTV expiry is too soon to handle",
- });
- }
- if (!allow_underpay && onion_amt_msat > amt_msat) ||
- (allow_underpay && onion_amt_msat >
- amt_msat.saturating_add(counterparty_skimmed_fee_msat.unwrap_or(0)))
- {
- return Err(InboundOnionErr {
- err_code: 19,
- err_data: amt_msat.to_be_bytes().to_vec(),
- msg: "Upstream node sent less than we were supposed to receive in payment",
- });
- }
-
- let routing = if let Some(payment_preimage) = keysend_preimage {
- // We need to check that the sender knows the keysend preimage before processing this
- // payment further. Otherwise, an intermediary routing hop forwarding non-keysend-HTLC X
- // could discover the final destination of X, by probing the adjacent nodes on the route
- // with a keysend payment of identical payment hash to X and observing the processing
- // time discrepancies due to a hash collision with X.
- let hashed_preimage = PaymentHash(Sha256::hash(&payment_preimage.0).to_byte_array());
- if hashed_preimage != payment_hash {
- return Err(InboundOnionErr {
- err_code: 0x4000|22,
- err_data: Vec::new(),
- msg: "Payment preimage didn't match payment hash",
- });
- }
- if !accept_mpp_keysend && payment_data.is_some() {
- return Err(InboundOnionErr {
- err_code: 0x4000|22,
- err_data: Vec::new(),
- msg: "We don't support MPP keysend payments",
- });
- }
- PendingHTLCRouting::ReceiveKeysend {
- payment_data,
- payment_preimage,
- payment_metadata,
- incoming_cltv_expiry: outgoing_cltv_value,
- custom_tlvs,
- }
- } else if let Some(data) = payment_data {
- PendingHTLCRouting::Receive {
- payment_data: data,
- payment_metadata,
- incoming_cltv_expiry: outgoing_cltv_value,
- phantom_shared_secret,
- custom_tlvs,
- }
- } else {
- return Err(InboundOnionErr {
- err_code: 0x4000|0x2000|3,
- err_data: Vec::new(),
- msg: "We require payment_secrets",
- });
- };
- Ok(PendingHTLCInfo {
- routing,
- payment_hash,
- incoming_shared_secret: shared_secret,
- incoming_amt_msat: Some(amt_msat),
- outgoing_amt_msat: onion_amt_msat,
- outgoing_cltv_value,
- skimmed_fee_msat: counterparty_skimmed_fee_msat,
- })
-}
-
-/// Peel one layer off an incoming onion, returning [`PendingHTLCInfo`] (either Forward or Receive).
-/// This does all the relevant context-free checks that LDK requires for payment relay or
-/// acceptance. If the payment is to be received, and the amount matches the expected amount for
-/// a given invoice, this indicates the [`msgs::UpdateAddHTLC`], once fully committed in the
-/// channel, will generate an [`Event::PaymentClaimable`].
-pub fn peel_payment_onion<NS: Deref, L: Deref, T: secp256k1::Verification>(
- msg: &msgs::UpdateAddHTLC, node_signer: &NS, logger: &L, secp_ctx: &Secp256k1<T>,
- cur_height: u32, accept_mpp_keysend: bool,
-) -> Result<PendingHTLCInfo, InboundOnionErr>
-where
- NS::Target: NodeSigner,
- L::Target: Logger,
-{
- let (hop, shared_secret, next_packet_details_opt) =
- decode_incoming_update_add_htlc_onion(msg, node_signer, logger, secp_ctx
- ).map_err(|e| {
- let (err_code, err_data) = match e {
- HTLCFailureMsg::Malformed(m) => (m.failure_code, Vec::new()),
- HTLCFailureMsg::Relay(r) => (0x4000 | 22, r.reason.data),
- };
- let msg = "Failed to decode update add htlc onion";
- InboundOnionErr { msg, err_code, err_data }
- })?;
- Ok(match hop {
- onion_utils::Hop::Forward { next_hop_data, next_hop_hmac, new_packet_bytes } => {
- let NextPacketDetails {
- next_packet_pubkey, outgoing_amt_msat: _, outgoing_scid: _, outgoing_cltv_value
- } = match next_packet_details_opt {
- Some(next_packet_details) => next_packet_details,
- // Forward should always include the next hop details
- None => return Err(InboundOnionErr {
- msg: "Failed to decode update add htlc onion",
- err_code: 0x4000 | 22,
- err_data: Vec::new(),
- }),
- };
-
- if let Err((err_msg, code)) = check_incoming_htlc_cltv(
- cur_height, outgoing_cltv_value, msg.cltv_expiry
- ) {
- return Err(InboundOnionErr {
- msg: err_msg,
- err_code: code,
- err_data: Vec::new(),
- });
- }
- create_fwd_pending_htlc_info(
- msg, next_hop_data, next_hop_hmac, new_packet_bytes, shared_secret,
- Some(next_packet_pubkey)
- )?
- },
- onion_utils::Hop::Receive(received_data) => {
- create_recv_pending_htlc_info(
- received_data, shared_secret, msg.payment_hash, msg.amount_msat, msg.cltv_expiry,
- None, false, msg.skimmed_fee_msat, cur_height, accept_mpp_keysend,
- )?
- }
- })
-}
-
-struct NextPacketDetails {
- next_packet_pubkey: Result<PublicKey, secp256k1::Error>,
- outgoing_scid: u64,
- outgoing_amt_msat: u64,
- outgoing_cltv_value: u32,
-}
-
-fn decode_incoming_update_add_htlc_onion<NS: Deref, L: Deref, T: secp256k1::Verification>(
- msg: &msgs::UpdateAddHTLC, node_signer: &NS, logger: &L, secp_ctx: &Secp256k1<T>,
-) -> Result<(onion_utils::Hop, [u8; 32], Option<NextPacketDetails>), HTLCFailureMsg>
-where
- NS::Target: NodeSigner,
- L::Target: Logger,
-{
- macro_rules! return_malformed_err {
- ($msg: expr, $err_code: expr) => {
- {
- log_info!(logger, "Failed to accept/forward incoming HTLC: {}", $msg);
- return Err(HTLCFailureMsg::Malformed(msgs::UpdateFailMalformedHTLC {
- channel_id: msg.channel_id,
- htlc_id: msg.htlc_id,
- sha256_of_onion: Sha256::hash(&msg.onion_routing_packet.hop_data).to_byte_array(),
- failure_code: $err_code,
- }));
+ continue;
+ }
+ } else {
+ log_trace!(logger, "Unlocked monitor updating for channel {} without monitors to update",
+ channel_id);
+ }
+ }
+ }
+ } else {
+ log_debug!(logger,
+ "Got a release post-RAA monitor update for peer {} but the channel is gone",
+ log_pubkey!(counterparty_node_id));
}
+ break;
}
}
- if let Err(_) = msg.onion_routing_packet.public_key {
- return_malformed_err!("invalid ephemeral pubkey", 0x8000 | 0x4000 | 6);
- }
-
- let shared_secret = node_signer.ecdh(
- Recipient::Node, &msg.onion_routing_packet.public_key.unwrap(), None
- ).unwrap().secret_bytes();
-
- if msg.onion_routing_packet.version != 0 {
- //TODO: Spec doesn't indicate if we should only hash hop_data here (and in other
- //sha256_of_onion error data packets), or the entire onion_routing_packet. Either way,
- //the hash doesn't really serve any purpose - in the case of hashing all data, the
- //receiving node would have to brute force to figure out which version was put in the
- //packet by the node that send us the message, in the case of hashing the hop_data, the
- //node knows the HMAC matched, so they already know what is there...
- return_malformed_err!("Unknown onion packet version", 0x8000 | 0x4000 | 4);
- }
- macro_rules! return_err {
- ($msg: expr, $err_code: expr, $data: expr) => {
- {
- log_info!(logger, "Failed to accept/forward incoming HTLC: {}", $msg);
- return Err(HTLCFailureMsg::Relay(msgs::UpdateFailHTLC {
- channel_id: msg.channel_id,
- htlc_id: msg.htlc_id,
- reason: HTLCFailReason::reason($err_code, $data.to_vec())
- .get_encrypted_failure_packet(&shared_secret, &None),
- }));
+ fn handle_post_event_actions(&self, actions: Vec<EventCompletionAction>) {
+ for action in actions {
+ match action {
+ EventCompletionAction::ReleaseRAAChannelMonitorUpdate {
+ channel_funding_outpoint, channel_id, counterparty_node_id
+ } => {
+ self.handle_monitor_update_release(counterparty_node_id, channel_funding_outpoint, channel_id, None);
+ }
}
}
}
- let next_hop = match onion_utils::decode_next_payment_hop(
- shared_secret, &msg.onion_routing_packet.hop_data[..], msg.onion_routing_packet.hmac,
- msg.payment_hash, node_signer
+ /// Processes any events asynchronously in the order they were generated since the last call
+ /// using the given event handler.
+ ///
+ /// See the trait-level documentation of [`EventsProvider`] for requirements.
+ pub async fn process_pending_events_async<Future: core::future::Future, H: Fn(Event) -> Future>(
+ &self, handler: H
) {
- Ok(res) => res,
- Err(onion_utils::OnionDecodeErr::Malformed { err_msg, err_code }) => {
- return_malformed_err!(err_msg, err_code);
- },
- Err(onion_utils::OnionDecodeErr::Relay { err_msg, err_code }) => {
- return_err!(err_msg, err_code, &[0; 0]);
- },
- };
-
- let next_packet_details = match next_hop {
- onion_utils::Hop::Forward {
- next_hop_data: msgs::InboundOnionPayload::Forward {
- short_channel_id, amt_to_forward, outgoing_cltv_value
- }, ..
- } => {
- let next_packet_pubkey = onion_utils::next_hop_pubkey(secp_ctx,
- msg.onion_routing_packet.public_key.unwrap(), &shared_secret);
- NextPacketDetails {
- next_packet_pubkey, outgoing_scid: short_channel_id,
- outgoing_amt_msat: amt_to_forward, outgoing_cltv_value
- }
- },
- onion_utils::Hop::Receive { .. } => return Ok((next_hop, shared_secret, None)),
- onion_utils::Hop::Forward { next_hop_data: msgs::InboundOnionPayload::Receive { .. }, .. } |
- onion_utils::Hop::Forward { next_hop_data: msgs::InboundOnionPayload::BlindedReceive { .. }, .. } =>
- {
- return_err!("Final Node OnionHopData provided for us as an intermediary node", 0x4000 | 22, &[0; 0]);
- }
- };
-
- Ok((next_hop, shared_secret, Some(next_packet_details)))
-}
-
-fn check_incoming_htlc_cltv(
- cur_height: u32, outgoing_cltv_value: u32, cltv_expiry: u32
-) -> Result<(), (&'static str, u16)> {
- if (cltv_expiry as u64) < (outgoing_cltv_value) as u64 + MIN_CLTV_EXPIRY_DELTA as u64 {
- return Err((
- "Forwarding node has tampered with the intended HTLC values or origin node has an obsolete cltv_expiry_delta",
- 0x1000 | 13, // incorrect_cltv_expiry
- ));
- }
- // Theoretically, channel counterparty shouldn't send us a HTLC expiring now,
- // but we want to be robust wrt to counterparty packet sanitization (see
- // HTLC_FAIL_BACK_BUFFER rationale).
- if cltv_expiry <= cur_height + HTLC_FAIL_BACK_BUFFER as u32 { // expiry_too_soon
- return Err(("CLTV expiry is too close", 0x1000 | 14));
- }
- if cltv_expiry > cur_height + CLTV_FAR_FAR_AWAY as u32 { // expiry_too_far
- return Err(("CLTV expiry is too far in the future", 21));
- }
- // If the HTLC expires ~now, don't bother trying to forward it to our
- // counterparty. They should fail it anyway, but we don't want to bother with
- // the round-trips or risk them deciding they definitely want the HTLC and
- // force-closing to ensure they get it if we're offline.
- // We previously had a much more aggressive check here which tried to ensure
- // our counterparty receives an HTLC which has *our* risk threshold met on it,
- // but there is no need to do that, and since we're a bit conservative with our
- // risk threshold it just results in failing to forward payments.
- if (outgoing_cltv_value) as u64 <= (cur_height + LATENCY_GRACE_PERIOD_BLOCKS) as u64 {
- return Err(("Outgoing CLTV value is too soon", 0x1000 | 14));
- }
-
- Ok(())
+ let mut ev;
+ process_events_body!(self, ev, { handler(ev).await });
+ }
}
impl<M: Deref, T: Deref, ES: Deref, NS: Deref, SP: Deref, F: Deref, R: Deref, L: Deref> MessageSendEventsProvider for ChannelManager<M, T, ES, NS, SP, F, R, L>
/// will randomly be placed first or last in the returned array.
///
/// Note that even though `BroadcastChannelAnnouncement` and `BroadcastChannelUpdate`
- /// `MessageSendEvent`s are intended to be broadcasted to all peers, they will be pleaced among
+ /// `MessageSendEvent`s are intended to be broadcasted to all peers, they will be placed among
/// the `MessageSendEvent`s to the specific peer they were generated under.
fn get_and_clear_pending_msg_events(&self) -> Vec<MessageSendEvent> {
let events = RefCell::new(Vec::new());
result = NotifyOption::DoPersist;
}
+ let mut is_any_peer_connected = false;
let mut pending_events = Vec::new();
let per_peer_state = self.per_peer_state.read().unwrap();
for (_cp_id, peer_state_mutex) in per_peer_state.iter() {
if peer_state.pending_msg_events.len() > 0 {
pending_events.append(&mut peer_state.pending_msg_events);
}
+ if peer_state.is_connected {
+ is_any_peer_connected = true
+ }
+ }
+
+ // Ensure that we are connected to some peers before getting broadcast messages.
+ if is_any_peer_connected {
+ let mut broadcast_msgs = self.pending_broadcast_messages.lock().unwrap();
+ pending_events.append(&mut broadcast_msgs);
}
if !pending_events.is_empty() {
fn filtered_block_connected(&self, header: &Header, txdata: &TransactionData, height: u32) {
{
let best_block = self.best_block.read().unwrap();
- assert_eq!(best_block.block_hash(), header.prev_blockhash,
+ assert_eq!(best_block.block_hash, header.prev_blockhash,
"Blocks must be connected in chain-order - the connected header must build on the last connected header");
- assert_eq!(best_block.height(), height - 1,
+ assert_eq!(best_block.height, height - 1,
"Blocks must be connected in chain-order - the connected block height must be one greater than the previous height");
}
let new_height = height - 1;
{
let mut best_block = self.best_block.write().unwrap();
- assert_eq!(best_block.block_hash(), header.block_hash(),
+ assert_eq!(best_block.block_hash, header.block_hash(),
"Blocks must be disconnected in chain-order - the disconnected header must be the last connected header");
- assert_eq!(best_block.height(), height,
+ assert_eq!(best_block.height, height,
"Blocks must be disconnected in chain-order - the disconnected block must have the correct height");
*best_block = BestBlock::new(header.prev_blockhash, new_height)
}
- self.do_chain_event(Some(new_height), |channel| channel.best_block_updated(new_height, header.time, self.chain_hash, &self.node_signer, &self.default_configuration, &self.logger));
+ self.do_chain_event(Some(new_height), |channel| channel.best_block_updated(new_height, header.time, self.chain_hash, &self.node_signer, &self.default_configuration, &&WithChannelContext::from(&self.logger, &channel.context)));
}
}
let _persistence_guard =
PersistenceNotifierGuard::optionally_notify_skipping_background_events(
self, || -> NotifyOption { NotifyOption::DoPersist });
- self.do_chain_event(Some(height), |channel| channel.transactions_confirmed(&block_hash, height, txdata, self.chain_hash, &self.node_signer, &self.default_configuration, &self.logger)
+ self.do_chain_event(Some(height), |channel| channel.transactions_confirmed(&block_hash, height, txdata, self.chain_hash, &self.node_signer, &self.default_configuration, &&WithChannelContext::from(&self.logger, &channel.context))
.map(|(a, b)| (a, Vec::new(), b)));
- let last_best_block_height = self.best_block.read().unwrap().height();
+ let last_best_block_height = self.best_block.read().unwrap().height;
if height < last_best_block_height {
let timestamp = self.highest_seen_timestamp.load(Ordering::Acquire);
- self.do_chain_event(Some(last_best_block_height), |channel| channel.best_block_updated(last_best_block_height, timestamp as u32, self.chain_hash, &self.node_signer, &self.default_configuration, &self.logger));
+ self.do_chain_event(Some(last_best_block_height), |channel| channel.best_block_updated(last_best_block_height, timestamp as u32, self.chain_hash, &self.node_signer, &self.default_configuration, &&WithChannelContext::from(&self.logger, &channel.context)));
}
}
self, || -> NotifyOption { NotifyOption::DoPersist });
*self.best_block.write().unwrap() = BestBlock::new(block_hash, height);
- self.do_chain_event(Some(height), |channel| channel.best_block_updated(height, header.time, self.chain_hash, &self.node_signer, &self.default_configuration, &self.logger));
+ self.do_chain_event(Some(height), |channel| channel.best_block_updated(height, header.time, self.chain_hash, &self.node_signer, &self.default_configuration, &&WithChannelContext::from(&self.logger, &channel.context)));
macro_rules! max_time {
($timestamp: expr) => {
self.do_chain_event(None, |channel| {
if let Some(funding_txo) = channel.context.get_funding_txo() {
if funding_txo.txid == *txid {
- channel.funding_transaction_unconfirmed(&self.logger).map(|()| (None, Vec::new(), None))
+ channel.funding_transaction_unconfirmed(&&WithChannelContext::from(&self.logger, &channel.context)).map(|()| (None, Vec::new(), None))
} else { Ok((None, Vec::new(), None)) }
} else { Ok((None, Vec::new(), None)) }
});
let mut peer_state_lock = peer_state_mutex.lock().unwrap();
let peer_state = &mut *peer_state_lock;
let pending_msg_events = &mut peer_state.pending_msg_events;
+
peer_state.channel_by_id.retain(|_, phase| {
match phase {
// Retain unfunded channels.
ChannelPhase::UnfundedOutboundV1(_) | ChannelPhase::UnfundedInboundV1(_) => true,
+ // TODO(dual_funding): Combine this match arm with above.
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedOutboundV2(_) | ChannelPhase::UnfundedInboundV2(_) => true,
ChannelPhase::Funded(channel) => {
let res = f(channel);
if let Ok((channel_ready_opt, mut timed_out_pending_htlcs, announcement_sigs)) = res {
timed_out_htlcs.push((source, payment_hash, HTLCFailReason::reason(failure_code, data),
HTLCDestination::NextHopChannel { node_id: Some(channel.context.get_counterparty_node_id()), channel_id: channel.context.channel_id() }));
}
+ let logger = WithChannelContext::from(&self.logger, &channel.context);
if let Some(channel_ready) = channel_ready_opt {
send_channel_ready!(self, pending_msg_events, channel, channel_ready);
if channel.context.is_usable() {
- log_trace!(self.logger, "Sending channel_ready with private initial channel_update for our counterparty on channel {}", channel.context.channel_id());
+ log_trace!(logger, "Sending channel_ready with private initial channel_update for our counterparty on channel {}", channel.context.channel_id());
if let Ok(msg) = self.get_channel_update_for_unicast(channel) {
pending_msg_events.push(events::MessageSendEvent::SendChannelUpdate {
node_id: channel.context.get_counterparty_node_id(),
});
}
} else {
- log_trace!(self.logger, "Sending channel_ready WITHOUT channel_update for {}", channel.context.channel_id());
+ log_trace!(logger, "Sending channel_ready WITHOUT channel_update for {}", channel.context.channel_id());
}
}
}
if let Some(announcement_sigs) = announcement_sigs {
- log_trace!(self.logger, "Sending announcement_signatures for channel {}", channel.context.channel_id());
+ log_trace!(logger, "Sending announcement_signatures for channel {}", channel.context.channel_id());
pending_msg_events.push(events::MessageSendEvent::SendAnnouncementSignatures {
node_id: channel.context.get_counterparty_node_id(),
msg: announcement_sigs,
update_maps_on_chan_removal!(self, &channel.context);
// 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.context.force_shutdown(true));
+ let reason_message = format!("{}", reason);
+ failed_channels.push(channel.context.force_shutdown(true, reason));
if let Ok(update) = self.get_channel_update_for_broadcast(&channel) {
- pending_msg_events.push(events::MessageSendEvent::BroadcastChannelUpdate {
+ let mut pending_broadcast_messages = self.pending_broadcast_messages.lock().unwrap();
+ pending_broadcast_messages.push(events::MessageSendEvent::BroadcastChannelUpdate {
msg: update
});
}
- let reason_message = format!("{}", reason);
- self.issue_channel_close_events(&channel.context, reason);
pending_msg_events.push(events::MessageSendEvent::HandleError {
node_id: channel.context.get_counterparty_node_id(),
action: msgs::ErrorAction::DisconnectPeer {
incoming_packet_shared_secret: htlc.forward_info.incoming_shared_secret,
phantom_shared_secret: None,
outpoint: htlc.prev_funding_outpoint,
+ channel_id: htlc.prev_channel_id,
+ blinded_failure: htlc.forward_info.routing.blinded_failure(),
});
let requested_forward_scid /* intercept scid */ = match htlc.forward_info.routing {
timed_out_htlcs.push((prev_hop_data, htlc.forward_info.payment_hash,
HTLCFailReason::from_failure_code(0x2000 | 2),
HTLCDestination::InvalidForward { requested_forward_scid }));
- log_trace!(self.logger, "Timing out intercepted HTLC with requested forward scid {}", requested_forward_scid);
+ let logger = WithContext::from(
+ &self.logger, None, Some(htlc.prev_channel_id)
+ );
+ log_trace!(logger, "Timing out intercepted HTLC with requested forward scid {}", requested_forward_scid);
false
} else { true }
});
}
/// Returns true if this [`ChannelManager`] needs to be persisted.
+ ///
+ /// See [`Self::get_event_or_persistence_needed_future`] for retrieving a [`Future`] that
+ /// indicates this should be checked.
pub fn get_and_clear_needs_persistence(&self) -> bool {
self.needs_persist_flag.swap(false, Ordering::AcqRel)
}
fn handle_open_channel_v2(&self, counterparty_node_id: &PublicKey, msg: &msgs::OpenChannelV2) {
let _: Result<(), _> = handle_error!(self, Err(MsgHandleErrInternal::send_err_msg_no_close(
"Dual-funded channels not supported".to_owned(),
- msg.temporary_channel_id.clone())), *counterparty_node_id);
+ msg.common_fields.temporary_channel_id.clone())), *counterparty_node_id);
}
fn handle_accept_channel(&self, counterparty_node_id: &PublicKey, msg: &msgs::AcceptChannel) {
fn handle_accept_channel_v2(&self, counterparty_node_id: &PublicKey, msg: &msgs::AcceptChannelV2) {
let _: Result<(), _> = handle_error!(self, Err(MsgHandleErrInternal::send_err_msg_no_close(
"Dual-funded channels not supported".to_owned(),
- msg.temporary_channel_id.clone())), *counterparty_node_id);
+ msg.common_fields.temporary_channel_id.clone())), *counterparty_node_id);
}
fn handle_funding_created(&self, counterparty_node_id: &PublicKey, msg: &msgs::FundingCreated) {
let mut failed_channels = Vec::new();
let mut per_peer_state = self.per_peer_state.write().unwrap();
let remove_peer = {
- log_debug!(self.logger, "Marking channels with {} disconnected and generating channel_updates.",
- log_pubkey!(counterparty_node_id));
+ log_debug!(
+ WithContext::from(&self.logger, Some(*counterparty_node_id), None),
+ "Marking channels with {} disconnected and generating channel_updates.",
+ log_pubkey!(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;
peer_state.channel_by_id.retain(|_, phase| {
let context = match phase {
ChannelPhase::Funded(chan) => {
- if chan.remove_uncommitted_htlcs_and_mark_paused(&self.logger).is_ok() {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ if chan.remove_uncommitted_htlcs_and_mark_paused(&&logger).is_ok() {
// We only retain funded channels that are not shutdown.
return true;
}
&mut chan.context
},
- // Unfunded channels will always be removed.
- ChannelPhase::UnfundedOutboundV1(chan) => {
- &mut chan.context
+ // We retain UnfundedOutboundV1 channel for some time in case
+ // peer unexpectedly disconnects, and intends to reconnect again.
+ ChannelPhase::UnfundedOutboundV1(_) => {
+ return true;
},
+ // Unfunded inbound channels will always be removed.
ChannelPhase::UnfundedInboundV1(chan) => {
&mut chan.context
},
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedOutboundV2(chan) => {
+ &mut chan.context
+ },
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedInboundV2(chan) => {
+ &mut chan.context
+ },
};
// Clean up for removal.
update_maps_on_chan_removal!(self, &context);
- self.issue_channel_close_events(&context, ClosureReason::DisconnectedPeer);
- failed_channels.push(context.force_shutdown(false));
+ failed_channels.push(context.force_shutdown(false, ClosureReason::DisconnectedPeer));
false
});
// Note that we don't bother generating any events for pre-accept channels -
// Gossip
&events::MessageSendEvent::SendChannelAnnouncement { .. } => false,
&events::MessageSendEvent::BroadcastChannelAnnouncement { .. } => true,
- &events::MessageSendEvent::BroadcastChannelUpdate { .. } => true,
+ // [`ChannelManager::pending_broadcast_events`] holds the [`BroadcastChannelUpdate`]
+ // This check here is to ensure exhaustivity.
+ &events::MessageSendEvent::BroadcastChannelUpdate { .. } => {
+ debug_assert!(false, "This event shouldn't have been here");
+ false
+ },
&events::MessageSendEvent::BroadcastNodeAnnouncement { .. } => true,
&events::MessageSendEvent::SendChannelUpdate { .. } => false,
&events::MessageSendEvent::SendChannelRangeQuery { .. } => false,
}
fn peer_connected(&self, counterparty_node_id: &PublicKey, init_msg: &msgs::Init, inbound: bool) -> Result<(), ()> {
+ let logger = WithContext::from(&self.logger, Some(*counterparty_node_id), None);
if !init_msg.features.supports_static_remote_key() {
- log_debug!(self.logger, "Peer {} does not support static remote key, disconnecting", log_pubkey!(counterparty_node_id));
+ log_debug!(logger, "Peer {} does not support static remote key, disconnecting", log_pubkey!(counterparty_node_id));
return Err(());
}
return NotifyOption::SkipPersistNoEvents;
}
e.insert(Mutex::new(PeerState {
- channel_by_id: HashMap::new(),
- inbound_channel_request_by_id: HashMap::new(),
+ channel_by_id: new_hash_map(),
+ inbound_channel_request_by_id: new_hash_map(),
latest_features: init_msg.features.clone(),
pending_msg_events: Vec::new(),
in_flight_monitor_updates: BTreeMap::new(),
let mut peer_state = e.get().lock().unwrap();
peer_state.latest_features = init_msg.features.clone();
- let best_block_height = self.best_block.read().unwrap().height();
+ let best_block_height = self.best_block.read().unwrap().height;
if inbound_peer_limited &&
Self::unfunded_channel_count(&*peer_state, best_block_height) ==
peer_state.channel_by_id.len()
}
}
- log_debug!(self.logger, "Generating channel_reestablish events for {}", log_pubkey!(counterparty_node_id));
+ log_debug!(logger, "Generating channel_reestablish events for {}", log_pubkey!(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 peer_state = &mut *peer_state_lock;
let pending_msg_events = &mut peer_state.pending_msg_events;
- peer_state.channel_by_id.iter_mut().filter_map(|(_, phase)|
- if let ChannelPhase::Funded(chan) = phase { Some(chan) } else {
- // Since unfunded channel maps are cleared upon disconnecting a peer, and they're not persisted
- // (so won't be recovered after a crash), they shouldn't exist here and we would never need to
- // worry about closing and removing them.
- debug_assert!(false);
- None
+ for (_, phase) in peer_state.channel_by_id.iter_mut() {
+ match phase {
+ ChannelPhase::Funded(chan) => {
+ let logger = WithChannelContext::from(&self.logger, &chan.context);
+ pending_msg_events.push(events::MessageSendEvent::SendChannelReestablish {
+ node_id: chan.context.get_counterparty_node_id(),
+ msg: chan.get_channel_reestablish(&&logger),
+ });
+ }
+
+ ChannelPhase::UnfundedOutboundV1(chan) => {
+ pending_msg_events.push(events::MessageSendEvent::SendOpenChannel {
+ node_id: chan.context.get_counterparty_node_id(),
+ msg: chan.get_open_channel(self.chain_hash),
+ });
+ }
+
+ // TODO(dual_funding): Combine this match arm with above once #[cfg(dual_funding)] is removed.
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedOutboundV2(chan) => {
+ pending_msg_events.push(events::MessageSendEvent::SendOpenChannelV2 {
+ node_id: chan.context.get_counterparty_node_id(),
+ msg: chan.get_open_channel_v2(self.chain_hash),
+ });
+ },
+
+ ChannelPhase::UnfundedInboundV1(_) => {
+ // Since unfunded inbound channel maps are cleared upon disconnecting a peer,
+ // they are not persisted and won't be recovered after a crash.
+ // Therefore, they shouldn't exist at this point.
+ debug_assert!(false);
+ }
+
+ // TODO(dual_funding): Combine this match arm with above once #[cfg(dual_funding)] is removed.
+ #[cfg(dual_funding)]
+ ChannelPhase::UnfundedInboundV2(channel) => {
+ // Since unfunded inbound channel maps are cleared upon disconnecting a peer,
+ // they are not persisted and won't be recovered after a crash.
+ // Therefore, they shouldn't exist at this point.
+ debug_assert!(false);
+ },
}
- ).for_each(|chan| {
- pending_msg_events.push(events::MessageSendEvent::SendChannelReestablish {
- node_id: chan.context.get_counterparty_node_id(),
- msg: chan.get_channel_reestablish(&self.logger),
- });
- });
+ }
}
return NotifyOption::SkipPersistHandleEvents;
}
fn handle_error(&self, counterparty_node_id: &PublicKey, msg: &msgs::ErrorMessage) {
- let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
-
match &msg.data as &str {
"cannot co-op close channel w/ active htlcs"|
"link failed to shutdown" =>
// We're not going to bother handling this in a sensible way, instead simply
// repeating the Shutdown message on repeat until morale improves.
if !msg.channel_id.is_zero() {
- let per_peer_state = self.per_peer_state.read().unwrap();
- let peer_state_mutex_opt = per_peer_state.get(counterparty_node_id);
- if peer_state_mutex_opt.is_none() { return; }
- let mut peer_state = peer_state_mutex_opt.unwrap().lock().unwrap();
- if let Some(ChannelPhase::Funded(chan)) = peer_state.channel_by_id.get(&msg.channel_id) {
- if let Some(msg) = chan.get_outbound_shutdown() {
- peer_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown {
- node_id: *counterparty_node_id,
- msg,
- });
- }
- peer_state.pending_msg_events.push(events::MessageSendEvent::HandleError {
- node_id: *counterparty_node_id,
- action: msgs::ErrorAction::SendWarningMessage {
- msg: msgs::WarningMessage {
- channel_id: msg.channel_id,
- data: "You appear to be exhibiting LND bug 6039, we'll keep sending you shutdown messages until you handle them correctly".to_owned()
- },
- log_level: Level::Trace,
+ PersistenceNotifierGuard::optionally_notify(
+ self,
+ || -> NotifyOption {
+ let per_peer_state = self.per_peer_state.read().unwrap();
+ let peer_state_mutex_opt = per_peer_state.get(counterparty_node_id);
+ if peer_state_mutex_opt.is_none() { return NotifyOption::SkipPersistNoEvents; }
+ let mut peer_state = peer_state_mutex_opt.unwrap().lock().unwrap();
+ if let Some(ChannelPhase::Funded(chan)) = peer_state.channel_by_id.get(&msg.channel_id) {
+ if let Some(msg) = chan.get_outbound_shutdown() {
+ peer_state.pending_msg_events.push(events::MessageSendEvent::SendShutdown {
+ node_id: *counterparty_node_id,
+ msg,
+ });
+ }
+ peer_state.pending_msg_events.push(events::MessageSendEvent::HandleError {
+ node_id: *counterparty_node_id,
+ action: msgs::ErrorAction::SendWarningMessage {
+ msg: msgs::WarningMessage {
+ channel_id: msg.channel_id,
+ data: "You appear to be exhibiting LND bug 6039, we'll keep sending you shutdown messages until you handle them correctly".to_owned()
+ },
+ log_level: Level::Trace,
+ }
+ });
+ // This can happen in a fairly tight loop, so we absolutely cannot trigger
+ // a `ChannelManager` write here.
+ return NotifyOption::SkipPersistHandleEvents;
}
- });
- }
+ NotifyOption::SkipPersistNoEvents
+ }
+ );
}
return;
}
_ => {}
}
+ let _persistence_guard = PersistenceNotifierGuard::notify_on_drop(self);
+
if msg.channel_id.is_zero() {
let channel_ids: Vec<ChannelId> = {
let per_peer_state = self.per_peer_state.read().unwrap();
if peer_state_mutex_opt.is_none() { return; }
let mut peer_state_lock = peer_state_mutex_opt.unwrap().lock().unwrap();
let peer_state = &mut *peer_state_lock;
- if let Some(ChannelPhase::UnfundedOutboundV1(chan)) = peer_state.channel_by_id.get_mut(&msg.channel_id) {
- if let Ok(msg) = chan.maybe_handle_error_without_close(self.chain_hash, &self.fee_estimator) {
- peer_state.pending_msg_events.push(events::MessageSendEvent::SendOpenChannel {
- node_id: *counterparty_node_id,
- msg,
- });
- return;
- }
+ match peer_state.channel_by_id.get_mut(&msg.channel_id) {
+ Some(ChannelPhase::UnfundedOutboundV1(ref mut chan)) => {
+ if let Ok(msg) = chan.maybe_handle_error_without_close(self.chain_hash, &self.fee_estimator) {
+ peer_state.pending_msg_events.push(events::MessageSendEvent::SendOpenChannel {
+ node_id: *counterparty_node_id,
+ msg,
+ });
+ return;
+ }
+ },
+ #[cfg(dual_funding)]
+ Some(ChannelPhase::UnfundedOutboundV2(ref mut chan)) => {
+ if let Ok(msg) = chan.maybe_handle_error_without_close(self.chain_hash, &self.fee_estimator) {
+ peer_state.pending_msg_events.push(events::MessageSendEvent::SendOpenChannelV2 {
+ node_id: *counterparty_node_id,
+ msg,
+ });
+ return;
+ }
+ },
+ None | Some(ChannelPhase::UnfundedInboundV1(_) | ChannelPhase::Funded(_)) => (),
+ #[cfg(dual_funding)]
+ Some(ChannelPhase::UnfundedInboundV2(_)) => (),
}
}
let amount_msats = match InvoiceBuilder::<DerivedSigningPubkey>::amount_msats(
&invoice_request
) {
- Ok(amount_msats) => Some(amount_msats),
+ Ok(amount_msats) => amount_msats,
Err(error) => return Some(OffersMessage::InvoiceError(error.into())),
};
let invoice_request = match invoice_request.verify(expanded_key, secp_ctx) {
return Some(OffersMessage::InvoiceError(error.into()));
},
};
- let relative_expiry = DEFAULT_RELATIVE_EXPIRY.as_secs() as u32;
- match self.create_inbound_payment(amount_msats, relative_expiry, None) {
- Ok((payment_hash, payment_secret)) if invoice_request.keys.is_some() => {
- let payment_paths = vec![
- self.create_one_hop_blinded_payment_path(payment_secret),
- ];
- #[cfg(not(feature = "no-std"))]
- let builder = invoice_request.respond_using_derived_keys(
- payment_paths, payment_hash
- );
- #[cfg(feature = "no-std")]
- let created_at = Duration::from_secs(
- self.highest_seen_timestamp.load(Ordering::Acquire) as u64
- );
- #[cfg(feature = "no-std")]
- let builder = invoice_request.respond_using_derived_keys_no_std(
- payment_paths, payment_hash, created_at
- );
- match builder.and_then(|b| b.allow_mpp().build_and_sign(secp_ctx)) {
- Ok(invoice) => Some(OffersMessage::Invoice(invoice)),
- Err(error) => Some(OffersMessage::InvoiceError(error.into())),
- }
- },
- Ok((payment_hash, payment_secret)) => {
- let payment_paths = vec![
- self.create_one_hop_blinded_payment_path(payment_secret),
- ];
- #[cfg(not(feature = "no-std"))]
- let builder = invoice_request.respond_with(payment_paths, payment_hash);
- #[cfg(feature = "no-std")]
- let created_at = Duration::from_secs(
- self.highest_seen_timestamp.load(Ordering::Acquire) as u64
- );
- #[cfg(feature = "no-std")]
- let builder = invoice_request.respond_with_no_std(
- payment_paths, payment_hash, created_at
- );
- let response = builder.and_then(|builder| builder.allow_mpp().build())
- .map_err(|e| OffersMessage::InvoiceError(e.into()))
- .and_then(|invoice|
- match invoice.sign(|invoice| self.node_signer.sign_bolt12_invoice(invoice)) {
- Ok(invoice) => Ok(OffersMessage::Invoice(invoice)),
- Err(SignError::Signing(())) => Err(OffersMessage::InvoiceError(
- InvoiceError::from_string("Failed signing invoice".to_string())
- )),
- Err(SignError::Verification(_)) => Err(OffersMessage::InvoiceError(
- InvoiceError::from_string("Failed invoice signature verification".to_string())
- )),
- });
- match response {
- Ok(invoice) => Some(invoice),
- Err(error) => Some(error),
- }
+ let relative_expiry = DEFAULT_RELATIVE_EXPIRY.as_secs() as u32;
+ let (payment_hash, payment_secret) = match self.create_inbound_payment(
+ Some(amount_msats), relative_expiry, None
+ ) {
+ Ok((payment_hash, payment_secret)) => (payment_hash, payment_secret),
+ Err(()) => {
+ let error = Bolt12SemanticError::InvalidAmount;
+ return Some(OffersMessage::InvoiceError(error.into()));
},
+ };
+
+ let payment_paths = match self.create_blinded_payment_paths(
+ amount_msats, payment_secret
+ ) {
+ Ok(payment_paths) => payment_paths,
Err(()) => {
- Some(OffersMessage::InvoiceError(Bolt12SemanticError::InvalidAmount.into()))
+ let error = Bolt12SemanticError::MissingPaths;
+ return Some(OffersMessage::InvoiceError(error.into()));
},
+ };
+
+ #[cfg(not(feature = "std"))]
+ let created_at = Duration::from_secs(
+ self.highest_seen_timestamp.load(Ordering::Acquire) as u64
+ );
+
+ let response = if invoice_request.keys.is_some() {
+ #[cfg(feature = "std")]
+ let builder = invoice_request.respond_using_derived_keys(
+ payment_paths, payment_hash
+ );
+ #[cfg(not(feature = "std"))]
+ let builder = invoice_request.respond_using_derived_keys_no_std(
+ payment_paths, payment_hash, created_at
+ );
+ builder
+ .map(InvoiceBuilder::<DerivedSigningPubkey>::from)
+ .and_then(|builder| builder.allow_mpp().build_and_sign(secp_ctx))
+ .map_err(InvoiceError::from)
+ } else {
+ #[cfg(feature = "std")]
+ let builder = invoice_request.respond_with(payment_paths, payment_hash);
+ #[cfg(not(feature = "std"))]
+ let builder = invoice_request.respond_with_no_std(
+ payment_paths, payment_hash, created_at
+ );
+ builder
+ .map(InvoiceBuilder::<ExplicitSigningPubkey>::from)
+ .and_then(|builder| builder.allow_mpp().build())
+ .map_err(InvoiceError::from)
+ .and_then(|invoice| {
+ #[cfg(c_bindings)]
+ let mut invoice = invoice;
+ invoice
+ .sign(|invoice: &UnsignedBolt12Invoice|
+ self.node_signer.sign_bolt12_invoice(invoice)
+ )
+ .map_err(InvoiceError::from)
+ })
+ };
+
+ match response {
+ Ok(invoice) => Some(OffersMessage::Invoice(invoice)),
+ Err(error) => Some(OffersMessage::InvoiceError(error.into())),
}
},
OffersMessage::Invoice(invoice) => {
- match invoice.verify(expanded_key, secp_ctx) {
- Err(()) => {
- Some(OffersMessage::InvoiceError(InvoiceError::from_string("Unrecognized invoice".to_owned())))
- },
- Ok(_) if invoice.invoice_features().requires_unknown_bits_from(&self.bolt12_invoice_features()) => {
- Some(OffersMessage::InvoiceError(Bolt12SemanticError::UnknownRequiredFeatures.into()))
- },
- Ok(payment_id) => {
- if let Err(e) = self.send_payment_for_bolt12_invoice(&invoice, payment_id) {
- log_trace!(self.logger, "Failed paying invoice: {:?}", e);
- Some(OffersMessage::InvoiceError(InvoiceError::from_string(format!("{:?}", e))))
+ let response = invoice
+ .verify(expanded_key, secp_ctx)
+ .map_err(|()| InvoiceError::from_string("Unrecognized invoice".to_owned()))
+ .and_then(|payment_id| {
+ let features = self.bolt12_invoice_features();
+ if invoice.invoice_features().requires_unknown_bits_from(&features) {
+ Err(InvoiceError::from(Bolt12SemanticError::UnknownRequiredFeatures))
} else {
- None
+ self.send_payment_for_bolt12_invoice(&invoice, payment_id)
+ .map_err(|e| {
+ log_trace!(self.logger, "Failed paying invoice: {:?}", e);
+ InvoiceError::from_string(format!("{:?}", e))
+ })
}
- },
+ });
+
+ match response {
+ Ok(()) => None,
+ Err(e) => Some(OffersMessage::InvoiceError(e)),
}
},
OffersMessage::InvoiceError(invoice_error) => {
}
}
+impl<M: Deref, T: Deref, ES: Deref, NS: Deref, SP: Deref, F: Deref, R: Deref, L: Deref>
+NodeIdLookUp for ChannelManager<M, T, ES, NS, SP, F, R, L>
+where
+ M::Target: chain::Watch<<SP::Target as SignerProvider>::EcdsaSigner>,
+ T::Target: BroadcasterInterface,
+ ES::Target: EntropySource,
+ NS::Target: NodeSigner,
+ SP::Target: SignerProvider,
+ F::Target: FeeEstimator,
+ R::Target: Router,
+ L::Target: Logger,
+{
+ fn next_node_id(&self, short_channel_id: u64) -> Option<PublicKey> {
+ self.short_to_chan_info.read().unwrap().get(&short_channel_id).map(|(pubkey, _)| *pubkey)
+ }
+}
+
/// Fetches the set of [`NodeFeatures`] flags that are provided by or required by
/// [`ChannelManager`].
pub(crate) fn provided_node_features(config: &UserConfig) -> NodeFeatures {
features.set_channel_type_optional();
features.set_scid_privacy_optional();
features.set_zero_conf_optional();
+ features.set_route_blinding_optional();
if config.channel_handshake_config.negotiate_anchors_zero_fee_htlc_tx {
features.set_anchors_zero_fee_htlc_tx_optional();
}
(37, user_channel_id_high_opt, option),
(39, self.feerate_sat_per_1000_weight, option),
(41, self.channel_shutdown_state, option),
+ (43, self.pending_inbound_htlcs, optional_vec),
+ (45, self.pending_outbound_htlcs, optional_vec),
});
Ok(())
}
(37, user_channel_id_high_opt, option),
(39, feerate_sat_per_1000_weight, option),
(41, channel_shutdown_state, option),
+ (43, pending_inbound_htlcs, optional_vec),
+ (45, pending_outbound_htlcs, optional_vec),
});
// `user_channel_id` used to be a single u64 value. In order to remain backwards compatible with
inbound_htlc_maximum_msat,
feerate_sat_per_1000_weight,
channel_shutdown_state,
+ pending_inbound_htlcs: pending_inbound_htlcs.unwrap_or(Vec::new()),
+ pending_outbound_htlcs: pending_outbound_htlcs.unwrap_or(Vec::new()),
})
}
}
(6, real_node_pubkey, required),
});
+impl_writeable_tlv_based!(BlindedForward, {
+ (0, inbound_blinding_point, required),
+ (1, failure, (default_value, BlindedFailure::FromIntroductionNode)),
+});
+
impl_writeable_tlv_based_enum!(PendingHTLCRouting,
(0, Forward) => {
(0, onion_packet, required),
+ (1, blinded, option),
(2, short_channel_id, required),
},
(1, Receive) => {
(2, incoming_cltv_expiry, required),
(3, payment_metadata, option),
(5, custom_tlvs, optional_vec),
+ (7, requires_blinded_error, (default_value, false)),
},
(2, ReceiveKeysend) => {
(0, payment_preimage, required),
+ (1, requires_blinded_error, (default_value, false)),
(2, incoming_cltv_expiry, required),
(3, payment_metadata, option),
(4, payment_data, option), // Added in 0.0.116
(1, Fail),
);
+impl_writeable_tlv_based_enum!(BlindedFailure,
+ (0, FromIntroductionNode) => {},
+ (2, FromBlindedNode) => {}, ;
+);
+
impl_writeable_tlv_based!(HTLCPreviousHopData, {
(0, short_channel_id, required),
(1, phantom_shared_secret, option),
(2, outpoint, required),
+ (3, blinded_failure, option),
(4, htlc_id, required),
(6, incoming_packet_shared_secret, required),
(7, user_channel_id, option),
+ // Note that by the time we get past the required read for type 2 above, outpoint will be
+ // filled in, so we can safely unwrap it here.
+ (9, channel_id, (default_value, ChannelId::v1_from_funding_outpoint(outpoint.0.unwrap()))),
});
impl Writeable for ClaimableHTLC {
(2, prev_short_channel_id, required),
(4, prev_htlc_id, required),
(6, prev_funding_outpoint, required),
+ // Note that by the time we get past the required read for type 6 above, prev_funding_outpoint will be
+ // filled in, so we can safely unwrap it here.
+ (7, prev_channel_id, (default_value, ChannelId::v1_from_funding_outpoint(prev_funding_outpoint.0.unwrap()))),
});
-impl_writeable_tlv_based_enum!(HTLCForwardInfo,
- (1, FailHTLC) => {
- (0, htlc_id, required),
- (2, err_packet, required),
- };
- (0, AddHTLC)
-);
+impl Writeable for HTLCForwardInfo {
+ fn write<W: Writer>(&self, w: &mut W) -> Result<(), io::Error> {
+ const FAIL_HTLC_VARIANT_ID: u8 = 1;
+ match self {
+ Self::AddHTLC(info) => {
+ 0u8.write(w)?;
+ info.write(w)?;
+ },
+ Self::FailHTLC { htlc_id, err_packet } => {
+ FAIL_HTLC_VARIANT_ID.write(w)?;
+ write_tlv_fields!(w, {
+ (0, htlc_id, required),
+ (2, err_packet, required),
+ });
+ },
+ Self::FailMalformedHTLC { htlc_id, failure_code, sha256_of_onion } => {
+ // Since this variant was added in 0.0.119, write this as `::FailHTLC` with an empty error
+ // packet so older versions have something to fail back with, but serialize the real data as
+ // optional TLVs for the benefit of newer versions.
+ FAIL_HTLC_VARIANT_ID.write(w)?;
+ let dummy_err_packet = msgs::OnionErrorPacket { data: Vec::new() };
+ write_tlv_fields!(w, {
+ (0, htlc_id, required),
+ (1, failure_code, required),
+ (2, dummy_err_packet, required),
+ (3, sha256_of_onion, required),
+ });
+ },
+ }
+ Ok(())
+ }
+}
+
+impl Readable for HTLCForwardInfo {
+ fn read<R: Read>(r: &mut R) -> Result<Self, DecodeError> {
+ let id: u8 = Readable::read(r)?;
+ Ok(match id {
+ 0 => Self::AddHTLC(Readable::read(r)?),
+ 1 => {
+ _init_and_read_len_prefixed_tlv_fields!(r, {
+ (0, htlc_id, required),
+ (1, malformed_htlc_failure_code, option),
+ (2, err_packet, required),
+ (3, sha256_of_onion, option),
+ });
+ if let Some(failure_code) = malformed_htlc_failure_code {
+ Self::FailMalformedHTLC {
+ htlc_id: _init_tlv_based_struct_field!(htlc_id, required),
+ failure_code,
+ sha256_of_onion: sha256_of_onion.ok_or(DecodeError::InvalidValue)?,
+ }
+ } else {
+ Self::FailHTLC {
+ htlc_id: _init_tlv_based_struct_field!(htlc_id, required),
+ err_packet: _init_tlv_based_struct_field!(err_packet, required),
+ }
+ }
+ },
+ _ => return Err(DecodeError::InvalidValue),
+ })
+ }
+}
impl_writeable_tlv_based!(PendingInboundPayment, {
(0, payment_secret, required),
self.chain_hash.write(writer)?;
{
let best_block = self.best_block.read().unwrap();
- best_block.height().write(writer)?;
- best_block.block_hash().write(writer)?;
+ best_block.height.write(writer)?;
+ best_block.block_hash.write(writer)?;
}
let mut serializable_peer_count: u64 = 0;
}
}
+ let mut decode_update_add_htlcs_opt = None;
+ let decode_update_add_htlcs = self.decode_update_add_htlcs.lock().unwrap();
+ if !decode_update_add_htlcs.is_empty() {
+ decode_update_add_htlcs_opt = Some(decode_update_add_htlcs);
+ }
+
let per_peer_state = self.per_peer_state.write().unwrap();
let pending_inbound_payments = self.pending_inbound_payments.lock().unwrap();
}
// Encode without retry info for 0.0.101 compatibility.
- let mut pending_outbound_payments_no_retry: HashMap<PaymentId, HashSet<[u8; 32]>> = HashMap::new();
+ let mut pending_outbound_payments_no_retry: HashMap<PaymentId, HashSet<[u8; 32]>> = new_hash_map();
for (id, outbound) in pending_outbound_payments.iter() {
match outbound {
PendingOutboundPayment::Legacy { session_privs } |
for ((counterparty_id, _), peer_state) in per_peer_state.iter().zip(peer_states.iter()) {
for (funding_outpoint, updates) in peer_state.in_flight_monitor_updates.iter() {
if !updates.is_empty() {
- if in_flight_monitor_updates.is_none() { in_flight_monitor_updates = Some(HashMap::new()); }
+ if in_flight_monitor_updates.is_none() { in_flight_monitor_updates = Some(new_hash_map()); }
in_flight_monitor_updates.as_mut().unwrap().insert((counterparty_id, funding_outpoint), updates);
}
}
(10, in_flight_monitor_updates, option),
(11, self.probing_cookie_secret, required),
(13, htlc_onion_fields, optional_vec),
+ (14, decode_update_add_htlcs_opt, option),
});
Ok(())
mut channel_monitors: Vec<&'a mut ChannelMonitor<<SP::Target as SignerProvider>::EcdsaSigner>>) -> Self {
Self {
entropy_source, node_signer, signer_provider, fee_estimator, chain_monitor, tx_broadcaster, router, logger, default_config,
- channel_monitors: channel_monitors.drain(..).map(|monitor| { (monitor.get_funding_txo().0, monitor) }).collect()
+ channel_monitors: hash_map_from_iter(
+ channel_monitors.drain(..).map(|monitor| { (monitor.get_funding_txo().0, monitor) })
+ ),
}
}
}
let mut failed_htlcs = Vec::new();
let channel_count: u64 = Readable::read(reader)?;
- let mut funding_txo_set = HashSet::with_capacity(cmp::min(channel_count as usize, 128));
- let mut funded_peer_channels: HashMap<PublicKey, HashMap<ChannelId, ChannelPhase<SP>>> = 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 funding_txo_set = hash_set_with_capacity(cmp::min(channel_count as usize, 128));
+ let mut funded_peer_channels: HashMap<PublicKey, HashMap<ChannelId, ChannelPhase<SP>>> = hash_map_with_capacity(cmp::min(channel_count as usize, 128));
+ let mut outpoint_to_peer = hash_map_with_capacity(cmp::min(channel_count as usize, 128));
+ let mut short_to_chan_info = hash_map_with_capacity(cmp::min(channel_count as usize, 128));
let mut channel_closures = VecDeque::new();
let mut close_background_events = Vec::new();
+ let mut funding_txo_to_channel_id = hash_map_with_capacity(channel_count as usize);
for _ in 0..channel_count {
let mut channel: Channel<SP> = Channel::read(reader, (
&args.entropy_source, &args.signer_provider, best_block_height, &provided_channel_type_features(&args.default_config)
))?;
+ let logger = WithChannelContext::from(&args.logger, &channel.context);
let funding_txo = channel.context.get_funding_txo().ok_or(DecodeError::InvalidValue)?;
+ funding_txo_to_channel_id.insert(funding_txo, channel.context.channel_id());
funding_txo_set.insert(funding_txo.clone());
if let Some(ref mut monitor) = args.channel_monitors.get_mut(&funding_txo) {
if channel.get_cur_holder_commitment_transaction_number() > monitor.get_cur_holder_commitment_number() ||
channel.get_cur_counterparty_commitment_transaction_number() > monitor.get_cur_counterparty_commitment_number() ||
channel.context.get_latest_monitor_update_id() < monitor.get_latest_update_id() {
// But if the channel is behind of the monitor, close the channel:
- log_error!(args.logger, "A ChannelManager is stale compared to the current ChannelMonitor!");
- log_error!(args.logger, " The channel will be force-closed and the latest commitment transaction from the ChannelMonitor broadcast.");
+ log_error!(logger, "A ChannelManager is stale compared to the current ChannelMonitor!");
+ log_error!(logger, " The channel will be force-closed and the latest commitment transaction from the ChannelMonitor broadcast.");
if channel.context.get_latest_monitor_update_id() < monitor.get_latest_update_id() {
- log_error!(args.logger, " The ChannelMonitor for channel {} is at update_id {} but the ChannelManager is at update_id {}.",
+ log_error!(logger, " The ChannelMonitor for channel {} is at update_id {} but the ChannelManager is at update_id {}.",
&channel.context.channel_id(), monitor.get_latest_update_id(), channel.context.get_latest_monitor_update_id());
}
if channel.get_cur_holder_commitment_transaction_number() > monitor.get_cur_holder_commitment_number() {
- log_error!(args.logger, " The ChannelMonitor for channel {} is at holder commitment number {} but the ChannelManager is at holder commitment number {}.",
+ log_error!(logger, " The ChannelMonitor for channel {} is at holder commitment number {} but the ChannelManager is at holder commitment number {}.",
&channel.context.channel_id(), monitor.get_cur_holder_commitment_number(), channel.get_cur_holder_commitment_transaction_number());
}
if channel.get_revoked_counterparty_commitment_transaction_number() > monitor.get_min_seen_secret() {
- log_error!(args.logger, " The ChannelMonitor for channel {} is at revoked counterparty transaction number {} but the ChannelManager is at revoked counterparty transaction number {}.",
+ log_error!(logger, " The ChannelMonitor for channel {} is at revoked counterparty transaction number {} but the ChannelManager is at revoked counterparty transaction number {}.",
&channel.context.channel_id(), monitor.get_min_seen_secret(), channel.get_revoked_counterparty_commitment_transaction_number());
}
if channel.get_cur_counterparty_commitment_transaction_number() > monitor.get_cur_counterparty_commitment_number() {
- log_error!(args.logger, " The ChannelMonitor for channel {} is at counterparty commitment transaction number {} but the ChannelManager is at counterparty commitment transaction number {}.",
+ log_error!(logger, " The ChannelMonitor for channel {} is at counterparty commitment transaction number {} but the ChannelManager is at counterparty commitment transaction number {}.",
&channel.context.channel_id(), monitor.get_cur_counterparty_commitment_number(), channel.get_cur_counterparty_commitment_transaction_number());
}
- let mut shutdown_result = channel.context.force_shutdown(true);
+ let mut shutdown_result = channel.context.force_shutdown(true, ClosureReason::OutdatedChannelManager);
if shutdown_result.unbroadcasted_batch_funding_txid.is_some() {
return Err(DecodeError::InvalidValue);
}
- if let Some((counterparty_node_id, funding_txo, update)) = shutdown_result.monitor_update {
+ if let Some((counterparty_node_id, funding_txo, channel_id, update)) = shutdown_result.monitor_update {
close_background_events.push(BackgroundEvent::MonitorUpdateRegeneratedOnStartup {
- counterparty_node_id, funding_txo, update
+ counterparty_node_id, funding_txo, channel_id, update
});
}
failed_htlcs.append(&mut shutdown_result.dropped_outbound_htlcs);
reason: ClosureReason::OutdatedChannelManager,
counterparty_node_id: Some(channel.context.get_counterparty_node_id()),
channel_capacity_sats: Some(channel.context.get_value_satoshis()),
+ channel_funding_txo: channel.context.get_funding_txo(),
}, None));
for (channel_htlc_source, payment_hash) in channel.inflight_htlc_sources() {
let mut found_htlc = false;
// claim update ChannelMonitor updates were persisted prior to persising
// the ChannelMonitor update for the forward leg, so attempting to fail the
// backwards leg of the HTLC will simply be rejected.
- log_info!(args.logger,
+ log_info!(logger,
"Failing HTLC with hash {} as it is missing in the ChannelMonitor for channel {} but was present in the (stale) ChannelManager",
&channel.context.channel_id(), &payment_hash);
failed_htlcs.push((channel_htlc_source.clone(), *payment_hash, channel.context.get_counterparty_node_id(), channel.context.channel_id()));
}
}
} else {
- log_info!(args.logger, "Successfully loaded channel {} at update_id {} against monitor at update id {}",
+ log_info!(logger, "Successfully loaded channel {} at update_id {} against monitor at update id {}",
&channel.context.channel_id(), channel.context.get_latest_monitor_update_id(),
monitor.get_latest_update_id());
if let Some(short_channel_id) = channel.context.get_short_channel_id() {
short_to_chan_info.insert(short_channel_id, (channel.context.get_counterparty_node_id(), channel.context.channel_id()));
}
- if channel.context.is_funding_broadcast() {
- id_to_peer.insert(channel.context.channel_id(), channel.context.get_counterparty_node_id());
+ if let Some(funding_txo) = channel.context.get_funding_txo() {
+ outpoint_to_peer.insert(funding_txo, channel.context.get_counterparty_node_id());
}
match funded_peer_channels.entry(channel.context.get_counterparty_node_id()) {
hash_map::Entry::Occupied(mut entry) => {
by_id_map.insert(channel.context.channel_id(), ChannelPhase::Funded(channel));
},
hash_map::Entry::Vacant(entry) => {
- let mut by_id_map = HashMap::new();
+ let mut by_id_map = new_hash_map();
by_id_map.insert(channel.context.channel_id(), ChannelPhase::Funded(channel));
entry.insert(by_id_map);
}
// If we were persisted and shut down while the initial ChannelMonitor persistence
// was in-progress, we never broadcasted the funding transaction and can still
// safely discard the channel.
- let _ = channel.context.force_shutdown(false);
+ let _ = channel.context.force_shutdown(false, ClosureReason::DisconnectedPeer);
channel_closures.push_back((events::Event::ChannelClosed {
channel_id: channel.context.channel_id(),
user_channel_id: channel.context.get_user_id(),
reason: ClosureReason::DisconnectedPeer,
counterparty_node_id: Some(channel.context.get_counterparty_node_id()),
channel_capacity_sats: Some(channel.context.get_value_satoshis()),
+ channel_funding_txo: channel.context.get_funding_txo(),
}, None));
} else {
- log_error!(args.logger, "Missing ChannelMonitor for channel {} needed by ChannelManager.", &channel.context.channel_id());
- log_error!(args.logger, " The chain::Watch API *requires* that monitors are persisted durably before returning,");
- log_error!(args.logger, " client applications must ensure that ChannelMonitor data is always available and the latest to avoid funds loss!");
- log_error!(args.logger, " Without the ChannelMonitor we cannot continue without risking funds.");
- log_error!(args.logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/lightningdevkit/rust-lightning");
+ log_error!(logger, "Missing ChannelMonitor for channel {} needed by ChannelManager.", &channel.context.channel_id());
+ log_error!(logger, " The chain::Watch API *requires* that monitors are persisted durably before returning,");
+ log_error!(logger, " client applications must ensure that ChannelMonitor data is always available and the latest to avoid funds loss!");
+ log_error!(logger, " Without the ChannelMonitor we cannot continue without risking funds.");
+ log_error!(logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/lightningdevkit/rust-lightning");
return Err(DecodeError::InvalidValue);
}
}
- for (funding_txo, _) in args.channel_monitors.iter() {
+ for (funding_txo, monitor) in args.channel_monitors.iter() {
if !funding_txo_set.contains(funding_txo) {
- log_info!(args.logger, "Queueing monitor update to ensure missing channel {} is force closed",
- &funding_txo.to_channel_id());
+ let logger = WithChannelMonitor::from(&args.logger, monitor);
+ let channel_id = monitor.channel_id();
+ log_info!(logger, "Queueing monitor update to ensure missing channel {} is force closed",
+ &channel_id);
let monitor_update = ChannelMonitorUpdate {
update_id: CLOSED_CHANNEL_UPDATE_ID,
+ counterparty_node_id: None,
updates: vec![ChannelMonitorUpdateStep::ChannelForceClosed { should_broadcast: true }],
+ channel_id: Some(monitor.channel_id()),
};
- close_background_events.push(BackgroundEvent::ClosedMonitorUpdateRegeneratedOnStartup((*funding_txo, monitor_update)));
+ close_background_events.push(BackgroundEvent::ClosedMonitorUpdateRegeneratedOnStartup((*funding_txo, channel_id, monitor_update)));
}
}
const MAX_ALLOC_SIZE: usize = 1024 * 64;
let forward_htlcs_count: u64 = Readable::read(reader)?;
- let mut forward_htlcs = HashMap::with_capacity(cmp::min(forward_htlcs_count as usize, 128));
+ let mut forward_htlcs = hash_map_with_capacity(cmp::min(forward_htlcs_count as usize, 128));
for _ in 0..forward_htlcs_count {
let short_channel_id = Readable::read(reader)?;
let pending_forwards_count: u64 = Readable::read(reader)?;
let peer_state_from_chans = |channel_by_id| {
PeerState {
channel_by_id,
- inbound_channel_request_by_id: HashMap::new(),
+ inbound_channel_request_by_id: new_hash_map(),
latest_features: InitFeatures::empty(),
pending_msg_events: Vec::new(),
in_flight_monitor_updates: BTreeMap::new(),
};
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<PeerState<SP>>)>()));
+ let mut per_peer_state = hash_map_with_capacity(cmp::min(peer_count as usize, MAX_ALLOC_SIZE/mem::size_of::<(PublicKey, Mutex<PeerState<SP>>)>()));
for _ in 0..peer_count {
let peer_pubkey = Readable::read(reader)?;
- let peer_chans = funded_peer_channels.remove(&peer_pubkey).unwrap_or(HashMap::new());
+ let peer_chans = funded_peer_channels.remove(&peer_pubkey).unwrap_or(new_hash_map());
let mut peer_state = peer_state_from_chans(peer_chans);
peer_state.latest_features = Readable::read(reader)?;
per_peer_state.insert(peer_pubkey, Mutex::new(peer_state));
let highest_seen_timestamp: u32 = Readable::read(reader)?;
let pending_inbound_payment_count: u64 = Readable::read(reader)?;
- let mut pending_inbound_payments: HashMap<PaymentHash, PendingInboundPayment> = HashMap::with_capacity(cmp::min(pending_inbound_payment_count as usize, MAX_ALLOC_SIZE/(3*32)));
+ let mut pending_inbound_payments: HashMap<PaymentHash, PendingInboundPayment> = hash_map_with_capacity(cmp::min(pending_inbound_payment_count as usize, MAX_ALLOC_SIZE/(3*32)));
for _ in 0..pending_inbound_payment_count {
if pending_inbound_payments.insert(Readable::read(reader)?, Readable::read(reader)?).is_some() {
return Err(DecodeError::InvalidValue);
let pending_outbound_payments_count_compat: u64 = Readable::read(reader)?;
let mut pending_outbound_payments_compat: HashMap<PaymentId, PendingOutboundPayment> =
- HashMap::with_capacity(cmp::min(pending_outbound_payments_count_compat as usize, MAX_ALLOC_SIZE/32));
+ hash_map_with_capacity(cmp::min(pending_outbound_payments_count_compat as usize, MAX_ALLOC_SIZE/32));
for _ in 0..pending_outbound_payments_count_compat {
let session_priv = Readable::read(reader)?;
let payment = PendingOutboundPayment::Legacy {
- session_privs: [session_priv].iter().cloned().collect()
+ session_privs: hash_set_from_iter([session_priv]),
};
if pending_outbound_payments_compat.insert(PaymentId(session_priv), payment).is_some() {
return Err(DecodeError::InvalidValue)
// pending_outbound_payments_no_retry is for compatibility with 0.0.101 clients.
let mut pending_outbound_payments_no_retry: Option<HashMap<PaymentId, HashSet<[u8; 32]>>> = None;
let mut pending_outbound_payments = None;
- let mut pending_intercepted_htlcs: Option<HashMap<InterceptId, PendingAddHTLCInfo>> = Some(HashMap::new());
+ let mut pending_intercepted_htlcs: Option<HashMap<InterceptId, PendingAddHTLCInfo>> = Some(new_hash_map());
let mut received_network_pubkey: Option<PublicKey> = None;
let mut fake_scid_rand_bytes: Option<[u8; 32]> = None;
let mut probing_cookie_secret: Option<[u8; 32]> = None;
let mut claimable_htlc_purposes = None;
let mut claimable_htlc_onion_fields = None;
- let mut pending_claiming_payments = Some(HashMap::new());
+ let mut pending_claiming_payments = Some(new_hash_map());
let mut monitor_update_blocked_actions_per_peer: Option<Vec<(_, BTreeMap<_, Vec<_>>)>> = Some(Vec::new());
let mut events_override = None;
let mut in_flight_monitor_updates: Option<HashMap<(PublicKey, OutPoint), Vec<ChannelMonitorUpdate>>> = None;
+ let mut decode_update_add_htlcs: Option<HashMap<u64, Vec<msgs::UpdateAddHTLC>>> = None;
read_tlv_fields!(reader, {
(1, pending_outbound_payments_no_retry, option),
(2, pending_intercepted_htlcs, option),
(10, in_flight_monitor_updates, option),
(11, probing_cookie_secret, option),
(13, claimable_htlc_onion_fields, optional_vec),
+ (14, decode_update_add_htlcs, option),
});
+ let mut decode_update_add_htlcs = decode_update_add_htlcs.unwrap_or_else(|| new_hash_map());
if fake_scid_rand_bytes.is_none() {
fake_scid_rand_bytes = Some(args.entropy_source.get_secure_random_bytes());
}
if pending_outbound_payments.is_none() && pending_outbound_payments_no_retry.is_none() {
pending_outbound_payments = Some(pending_outbound_payments_compat);
} else if pending_outbound_payments.is_none() {
- let mut outbounds = HashMap::new();
+ let mut outbounds = new_hash_map();
for (id, session_privs) in pending_outbound_payments_no_retry.unwrap().drain() {
outbounds.insert(id, PendingOutboundPayment::Legacy { session_privs });
}
let mut pending_background_events = Vec::new();
macro_rules! handle_in_flight_updates {
($counterparty_node_id: expr, $chan_in_flight_upds: expr, $funding_txo: expr,
- $monitor: expr, $peer_state: expr, $channel_info_log: expr
+ $monitor: expr, $peer_state: expr, $logger: expr, $channel_info_log: expr
) => { {
let mut max_in_flight_update_id = 0;
$chan_in_flight_upds.retain(|upd| upd.update_id > $monitor.get_latest_update_id());
for update in $chan_in_flight_upds.iter() {
- log_trace!(args.logger, "Replaying ChannelMonitorUpdate {} for {}channel {}",
- update.update_id, $channel_info_log, &$funding_txo.to_channel_id());
+ log_trace!($logger, "Replaying ChannelMonitorUpdate {} for {}channel {}",
+ update.update_id, $channel_info_log, &$monitor.channel_id());
max_in_flight_update_id = cmp::max(max_in_flight_update_id, update.update_id);
pending_background_events.push(
BackgroundEvent::MonitorUpdateRegeneratedOnStartup {
counterparty_node_id: $counterparty_node_id,
funding_txo: $funding_txo,
+ channel_id: $monitor.channel_id(),
update: update.clone(),
});
}
pending_background_events.push(
BackgroundEvent::MonitorUpdatesComplete {
counterparty_node_id: $counterparty_node_id,
- channel_id: $funding_txo.to_channel_id(),
+ channel_id: $monitor.channel_id(),
});
}
if $peer_state.in_flight_monitor_updates.insert($funding_txo, $chan_in_flight_upds).is_some() {
- log_error!(args.logger, "Duplicate in-flight monitor update set for the same channel!");
+ log_error!($logger, "Duplicate in-flight monitor update set for the same channel!");
return Err(DecodeError::InvalidValue);
}
max_in_flight_update_id
let peer_state = &mut *peer_state_lock;
for phase in peer_state.channel_by_id.values() {
if let ChannelPhase::Funded(chan) = phase {
+ let logger = WithChannelContext::from(&args.logger, &chan.context);
+
// Channels that were persisted have to be funded, otherwise they should have been
// discarded.
let funding_txo = chan.context.get_funding_txo().ok_or(DecodeError::InvalidValue)?;
if let Some(mut chan_in_flight_upds) = in_flight_upds.remove(&(*counterparty_id, funding_txo)) {
max_in_flight_update_id = cmp::max(max_in_flight_update_id,
handle_in_flight_updates!(*counterparty_id, chan_in_flight_upds,
- funding_txo, monitor, peer_state, ""));
+ funding_txo, monitor, peer_state, logger, ""));
}
}
if chan.get_latest_unblocked_monitor_update_id() > max_in_flight_update_id {
- // If the channel is ahead of the monitor, return InvalidValue:
- log_error!(args.logger, "A ChannelMonitor is stale compared to the current ChannelManager! This indicates a potentially-critical violation of the chain::Watch API!");
- log_error!(args.logger, " The ChannelMonitor for channel {} is at update_id {} with update_id through {} in-flight",
+ // If the channel is ahead of the monitor, return DangerousValue:
+ log_error!(logger, "A ChannelMonitor is stale compared to the current ChannelManager! This indicates a potentially-critical violation of the chain::Watch API!");
+ log_error!(logger, " The ChannelMonitor for channel {} is at update_id {} with update_id through {} in-flight",
chan.context.channel_id(), monitor.get_latest_update_id(), max_in_flight_update_id);
- log_error!(args.logger, " but the ChannelManager is at update_id {}.", chan.get_latest_unblocked_monitor_update_id());
- log_error!(args.logger, " The chain::Watch API *requires* that monitors are persisted durably before returning,");
- log_error!(args.logger, " client applications must ensure that ChannelMonitor data is always available and the latest to avoid funds loss!");
- log_error!(args.logger, " Without the latest ChannelMonitor we cannot continue without risking funds.");
- log_error!(args.logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/lightningdevkit/rust-lightning");
- return Err(DecodeError::InvalidValue);
+ log_error!(logger, " but the ChannelManager is at update_id {}.", chan.get_latest_unblocked_monitor_update_id());
+ log_error!(logger, " The chain::Watch API *requires* that monitors are persisted durably before returning,");
+ log_error!(logger, " client applications must ensure that ChannelMonitor data is always available and the latest to avoid funds loss!");
+ log_error!(logger, " Without the latest ChannelMonitor we cannot continue without risking funds.");
+ log_error!(logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/lightningdevkit/rust-lightning");
+ return Err(DecodeError::DangerousValue);
}
} else {
// We shouldn't have persisted (or read) any unfunded channel types so none should have been
if let Some(in_flight_upds) = in_flight_monitor_updates {
for ((counterparty_id, funding_txo), mut chan_in_flight_updates) in in_flight_upds {
+ let channel_id = funding_txo_to_channel_id.get(&funding_txo).copied();
+ let logger = WithContext::from(&args.logger, Some(counterparty_id), channel_id);
if let Some(monitor) = args.channel_monitors.get(&funding_txo) {
// Now that we've removed all the in-flight monitor updates for channels that are
// still open, we need to replay any monitor updates that are for closed channels,
// creating the neccessary peer_state entries as we go.
let peer_state_mutex = per_peer_state.entry(counterparty_id).or_insert_with(|| {
- Mutex::new(peer_state_from_chans(HashMap::new()))
+ Mutex::new(peer_state_from_chans(new_hash_map()))
});
let mut peer_state = peer_state_mutex.lock().unwrap();
handle_in_flight_updates!(counterparty_id, chan_in_flight_updates,
- funding_txo, monitor, peer_state, "closed ");
+ funding_txo, monitor, peer_state, logger, "closed ");
} else {
- log_error!(args.logger, "A ChannelMonitor is missing even though we have in-flight updates for it! This indicates a potentially-critical violation of the chain::Watch API!");
- log_error!(args.logger, " The ChannelMonitor for channel {} is missing.",
- &funding_txo.to_channel_id());
- log_error!(args.logger, " The chain::Watch API *requires* that monitors are persisted durably before returning,");
- log_error!(args.logger, " client applications must ensure that ChannelMonitor data is always available and the latest to avoid funds loss!");
- log_error!(args.logger, " Without the latest ChannelMonitor we cannot continue without risking funds.");
- log_error!(args.logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/lightningdevkit/rust-lightning");
+ log_error!(logger, "A ChannelMonitor is missing even though we have in-flight updates for it! This indicates a potentially-critical violation of the chain::Watch API!");
+ log_error!(logger, " The ChannelMonitor for channel {} is missing.", if let Some(channel_id) =
+ channel_id { channel_id.to_string() } else { format!("with outpoint {}", funding_txo) } );
+ log_error!(logger, " The chain::Watch API *requires* that monitors are persisted durably before returning,");
+ log_error!(logger, " client applications must ensure that ChannelMonitor data is always available and the latest to avoid funds loss!");
+ log_error!(logger, " Without the latest ChannelMonitor we cannot continue without risking funds.");
+ log_error!(logger, " Please ensure the chain::Watch API requirements are met and file a bug report at https://github.com/lightningdevkit/rust-lightning");
return Err(DecodeError::InvalidValue);
}
}
// We only rebuild the pending payments map if we were most recently serialized by
// 0.0.102+
for (_, monitor) in args.channel_monitors.iter() {
- let counterparty_opt = id_to_peer.get(&monitor.get_funding_txo().0.to_channel_id());
+ let counterparty_opt = outpoint_to_peer.get(&monitor.get_funding_txo().0);
if counterparty_opt.is_none() {
+ let logger = WithChannelMonitor::from(&args.logger, monitor);
for (htlc_source, (htlc, _)) in monitor.get_pending_or_resolved_outbound_htlcs() {
if let HTLCSource::OutboundRoute { payment_id, session_priv, path, .. } = htlc_source {
if path.hops.is_empty() {
- log_error!(args.logger, "Got an empty path for a pending payment");
+ log_error!(logger, "Got an empty path for a pending payment");
return Err(DecodeError::InvalidValue);
}
match pending_outbounds.pending_outbound_payments.lock().unwrap().entry(payment_id) {
hash_map::Entry::Occupied(mut entry) => {
let newly_added = entry.get_mut().insert(session_priv_bytes, &path);
- log_info!(args.logger, "{} a pending payment path for {} msat for session priv {} on an existing pending payment with payment hash {}",
- if newly_added { "Added" } else { "Had" }, path_amt, log_bytes!(session_priv_bytes), &htlc.payment_hash);
+ log_info!(logger, "{} a pending payment path for {} msat for session priv {} on an existing pending payment with payment hash {}",
+ if newly_added { "Added" } else { "Had" }, path_amt, log_bytes!(session_priv_bytes), htlc.payment_hash);
},
hash_map::Entry::Vacant(entry) => {
let path_fee = path.fee_msat();
retry_strategy: None,
attempts: PaymentAttempts::new(),
payment_params: None,
- session_privs: [session_priv_bytes].iter().map(|a| *a).collect(),
+ session_privs: hash_set_from_iter([session_priv_bytes]),
payment_hash: htlc.payment_hash,
payment_secret: None, // only used for retries, and we'll never retry on startup
payment_metadata: None, // only used for retries, and we'll never retry on startup
starting_block_height: best_block_height,
remaining_max_total_routing_fee_msat: None, // only used for retries, and we'll never retry on startup
});
- log_info!(args.logger, "Added a pending payment for {} msat with payment hash {} for path with session priv {}",
+ log_info!(logger, "Added a pending payment for {} msat with payment hash {} for path with session priv {}",
path_amt, &htlc.payment_hash, log_bytes!(session_priv_bytes));
}
}
// still have an entry for this HTLC in `forward_htlcs` or
// `pending_intercepted_htlcs`, we were apparently not persisted after
// the monitor was when forwarding the payment.
+ decode_update_add_htlcs.retain(|scid, update_add_htlcs| {
+ update_add_htlcs.retain(|update_add_htlc| {
+ let matches = *scid == prev_hop_data.short_channel_id &&
+ update_add_htlc.htlc_id == prev_hop_data.htlc_id;
+ if matches {
+ log_info!(logger, "Removing pending to-decode HTLC with hash {} as it was forwarded to the closed channel {}",
+ &htlc.payment_hash, &monitor.channel_id());
+ }
+ !matches
+ });
+ !update_add_htlcs.is_empty()
+ });
forward_htlcs.retain(|_, forwards| {
forwards.retain(|forward| {
if let HTLCForwardInfo::AddHTLC(htlc_info) = forward {
if pending_forward_matches_htlc(&htlc_info) {
- log_info!(args.logger, "Removing pending to-forward HTLC with hash {} as it was forwarded to the closed channel {}",
- &htlc.payment_hash, &monitor.get_funding_txo().0.to_channel_id());
+ log_info!(logger, "Removing pending to-forward HTLC with hash {} as it was forwarded to the closed channel {}",
+ &htlc.payment_hash, &monitor.channel_id());
false
} else { true }
} else { true }
});
pending_intercepted_htlcs.as_mut().unwrap().retain(|intercepted_id, htlc_info| {
if pending_forward_matches_htlc(&htlc_info) {
- log_info!(args.logger, "Removing pending intercepted HTLC with hash {} as it was forwarded to the closed channel {}",
- &htlc.payment_hash, &monitor.get_funding_txo().0.to_channel_id());
+ log_info!(logger, "Removing pending intercepted HTLC with hash {} as it was forwarded to the closed channel {}",
+ &htlc.payment_hash, &monitor.channel_id());
pending_events_read.retain(|(event, _)| {
if let Event::HTLCIntercepted { intercept_id: ev_id, .. } = event {
intercepted_id != ev_id
let compl_action =
EventCompletionAction::ReleaseRAAChannelMonitorUpdate {
channel_funding_outpoint: monitor.get_funding_txo().0,
+ channel_id: monitor.channel_id(),
counterparty_node_id: path.hops[0].pubkey,
};
pending_outbounds.claim_htlc(payment_id, preimage, session_priv,
- path, false, compl_action, &pending_events, &args.logger);
+ path, false, compl_action, &pending_events, &&logger);
pending_events_read = pending_events.into_inner().unwrap();
}
},
// channel_id -> peer map entry).
counterparty_opt.is_none(),
counterparty_opt.cloned().or(monitor.get_counterparty_node_id()),
- monitor.get_funding_txo().0))
+ monitor.get_funding_txo().0, monitor.channel_id()))
} else { None }
} else {
// If it was an outbound payment, we've handled it above - if a preimage
}
}
- if !forward_htlcs.is_empty() || pending_outbounds.needs_abandon() {
+ if !forward_htlcs.is_empty() || !decode_update_add_htlcs.is_empty() || pending_outbounds.needs_abandon() {
// If we have pending HTLCs to forward, assume we either dropped a
// `PendingHTLCsForwardable` or the user received it but never processed it as they
// shut down before the timer hit. Either way, set the time_forwardable to a small
let inbound_pmt_key_material = args.node_signer.get_inbound_payment_key_material();
let expanded_inbound_key = inbound_payment::ExpandedKey::new(&inbound_pmt_key_material);
- let mut claimable_payments = HashMap::with_capacity(claimable_htlcs_list.len());
+ let mut claimable_payments = hash_map_with_capacity(claimable_htlcs_list.len());
if let Some(purposes) = claimable_htlc_purposes {
if purposes.len() != claimable_htlcs_list.len() {
return Err(DecodeError::InvalidValue);
}
}
- let mut outbound_scid_aliases = HashSet::new();
+ let mut outbound_scid_aliases = new_hash_set();
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, phase) in peer_state.channel_by_id.iter_mut() {
if let ChannelPhase::Funded(chan) = phase {
+ let logger = WithChannelContext::from(&args.logger, &chan.context);
if chan.context.outbound_scid_alias() == 0 {
let mut outbound_scid_alias;
loop {
} else if !outbound_scid_aliases.insert(chan.context.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.context.outbound_scid_alias());
+ log_error!(logger, "Got duplicate outbound SCID alias; {}", chan.context.outbound_scid_alias());
return Err(DecodeError::InvalidValue);
}
if chan.context.is_usable() {
if short_to_chan_info.insert(chan.context.outbound_scid_alias(), (chan.context.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.context.outbound_scid_alias());
+ log_error!(logger, "Got duplicate outbound SCID alias; {}", chan.context.outbound_scid_alias());
return Err(DecodeError::InvalidValue);
}
}
// this channel as well. On the flip side, there's no harm in restarting
// 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(peer_node_id) = id_to_peer.get(&previous_channel_id){
+ let previous_channel_id = claimable_htlc.prev_hop.channel_id;
+ if let Some(peer_node_id) = outpoint_to_peer.get(&claimable_htlc.prev_hop.outpoint) {
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(ChannelPhase::Funded(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);
+ let logger = WithChannelContext::from(&args.logger, &channel.context);
+ channel.claim_htlc_while_disconnected_dropping_mon_update(claimable_htlc.prev_hop.htlc_id, payment_preimage, &&logger);
}
}
if let Some(previous_hop_monitor) = args.channel_monitors.get(&claimable_htlc.prev_hop.outpoint) {
for (node_id, monitor_update_blocked_actions) in monitor_update_blocked_actions_per_peer.unwrap() {
if let Some(peer_state) = per_peer_state.get(&node_id) {
- for (_, actions) in monitor_update_blocked_actions.iter() {
+ for (channel_id, actions) in monitor_update_blocked_actions.iter() {
+ let logger = WithContext::from(&args.logger, Some(node_id), Some(*channel_id));
for action in actions.iter() {
if let MonitorUpdateCompletionAction::EmitEventAndFreeOtherChannel {
downstream_counterparty_and_funding_outpoint:
- Some((blocked_node_id, blocked_channel_outpoint, blocking_action)), ..
+ Some((blocked_node_id, _blocked_channel_outpoint, blocked_channel_id, blocking_action)), ..
} = action {
- if let Some(blocked_peer_state) = per_peer_state.get(&blocked_node_id) {
- log_trace!(args.logger,
+ if let Some(blocked_peer_state) = per_peer_state.get(blocked_node_id) {
+ log_trace!(logger,
"Holding the next revoke_and_ack from {} until the preimage is durably persisted in the inbound edge's ChannelMonitor",
- blocked_channel_outpoint.to_channel_id());
+ blocked_channel_id);
blocked_peer_state.lock().unwrap().actions_blocking_raa_monitor_updates
- .entry(blocked_channel_outpoint.to_channel_id())
+ .entry(*blocked_channel_id)
.or_insert_with(Vec::new).push(blocking_action.clone());
} else {
// If the channel we were blocking has closed, we don't need to
}
peer_state.lock().unwrap().monitor_update_blocked_actions = monitor_update_blocked_actions;
} else {
- log_error!(args.logger, "Got blocked actions without a per-peer-state for {}", node_id);
+ log_error!(WithContext::from(&args.logger, Some(node_id), None), "Got blocked actions without a per-peer-state for {}", node_id);
return Err(DecodeError::InvalidValue);
}
}
pending_intercepted_htlcs: Mutex::new(pending_intercepted_htlcs.unwrap()),
forward_htlcs: Mutex::new(forward_htlcs),
+ decode_update_add_htlcs: Mutex::new(decode_update_add_htlcs),
claimable_payments: Mutex::new(ClaimablePayments { claimable_payments, pending_claiming_payments: pending_claiming_payments.unwrap() }),
outbound_scid_aliases: Mutex::new(outbound_scid_aliases),
- id_to_peer: Mutex::new(id_to_peer),
+ outpoint_to_peer: Mutex::new(outpoint_to_peer),
short_to_chan_info: FairRwLock::new(short_to_chan_info),
fake_scid_rand_bytes: fake_scid_rand_bytes.unwrap(),
pending_offers_messages: Mutex::new(Vec::new()),
+ pending_broadcast_messages: Mutex::new(Vec::new()),
+
entropy_source: args.entropy_source,
node_signer: args.node_signer,
signer_provider: args.signer_provider,
channel_manager.fail_htlc_backwards_internal(&source, &payment_hash, &reason, receiver);
}
- for (source, preimage, downstream_value, downstream_closed, downstream_node_id, downstream_funding) in pending_claims_to_replay {
+ for (source, preimage, downstream_value, downstream_closed, downstream_node_id, downstream_funding, downstream_channel_id) in pending_claims_to_replay {
// We use `downstream_closed` in place of `from_onchain` here just as a guess - we
// don't remember in the `ChannelMonitor` where we got a preimage from, but if the
// channel is closed we just assume that it probably came from an on-chain claim.
- channel_manager.claim_funds_internal(source, preimage, Some(downstream_value),
- downstream_closed, true, downstream_node_id, downstream_funding);
+ channel_manager.claim_funds_internal(source, preimage, Some(downstream_value), None,
+ downstream_closed, true, downstream_node_id, downstream_funding,
+ downstream_channel_id, None
+ );
}
//TODO: Broadcast channel update for closed channels, but only after we've made a
use crate::events::{Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, ClosureReason};
use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
use crate::ln::ChannelId;
- use crate::ln::channelmanager::{create_recv_pending_htlc_info, inbound_payment, PaymentId, PaymentSendFailure, RecipientOnionFields, InterceptId};
- use crate::ln::features::{ChannelFeatures, NodeFeatures};
+ use crate::ln::channelmanager::{create_recv_pending_htlc_info, HTLCForwardInfo, inbound_payment, PaymentId, PaymentSendFailure, RecipientOnionFields, InterceptId};
use crate::ln::functional_test_utils::*;
use crate::ln::msgs::{self, ErrorAction};
use crate::ln::msgs::ChannelMessageHandler;
- use crate::routing::router::{Path, PaymentParameters, RouteHop, RouteParameters, find_route};
+ use crate::prelude::*;
+ use crate::routing::router::{PaymentParameters, RouteParameters, find_route};
use crate::util::errors::APIError;
+ use crate::util::ser::Writeable;
use crate::util::test_utils;
use crate::util::config::{ChannelConfig, ChannelConfigUpdate};
use crate::sign::EntropySource;
}
}
+ #[test]
+ fn test_channel_update_cached() {
+ let chanmon_cfgs = create_chanmon_cfgs(3);
+ let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ let chan = create_announced_chan_between_nodes(&nodes, 0, 1);
+
+ nodes[0].node.force_close_channel_with_peer(&chan.2, &nodes[1].node.get_our_node_id(), None, true).unwrap();
+ check_added_monitors!(nodes[0], 1);
+ check_closed_event!(nodes[0], 1, ClosureReason::HolderForceClosed, [nodes[1].node.get_our_node_id()], 100000);
+
+ // Confirm that the channel_update was not sent immediately to node[1] but was cached.
+ let node_1_events = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(node_1_events.len(), 0);
+
+ {
+ // Assert that ChannelUpdate message has been added to node[0] pending broadcast messages
+ let pending_broadcast_messages= nodes[0].node.pending_broadcast_messages.lock().unwrap();
+ assert_eq!(pending_broadcast_messages.len(), 1);
+ }
+
+ // Test that we do not retrieve the pending broadcast messages when we are not connected to any peer
+ nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id());
+ nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id());
+
+ nodes[0].node.peer_disconnected(&nodes[2].node.get_our_node_id());
+ nodes[2].node.peer_disconnected(&nodes[0].node.get_our_node_id());
+
+ let node_0_events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(node_0_events.len(), 0);
+
+ // Now we reconnect to a peer
+ nodes[0].node.peer_connected(&nodes[2].node.get_our_node_id(), &msgs::Init {
+ features: nodes[2].node.init_features(), networks: None, remote_network_address: None
+ }, true).unwrap();
+ nodes[2].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init {
+ features: nodes[0].node.init_features(), networks: None, remote_network_address: None
+ }, false).unwrap();
+
+ // Confirm that get_and_clear_pending_msg_events correctly captures pending broadcast messages
+ let node_0_events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(node_0_events.len(), 1);
+ match &node_0_events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => (),
+ _ => panic!("Unexpected event"),
+ }
+ {
+ // Assert that ChannelUpdate message has been cleared from nodes[0] pending broadcast messages
+ let pending_broadcast_messages= nodes[0].node.pending_broadcast_messages.lock().unwrap();
+ assert_eq!(pending_broadcast_messages.len(), 0);
+ }
+ }
+
#[test]
fn test_drop_disconnected_peers_when_removing_channels() {
let chanmon_cfgs = create_chanmon_cfgs(2);
}
#[test]
- fn test_id_to_peer_coverage() {
- // Test that the `ChannelManager:id_to_peer` contains channels which have been assigned
+ fn test_outpoint_to_peer_coverage() {
+ // Test that the `ChannelManager:outpoint_to_peer` contains channels which have been assigned
// a `channel_id` (i.e. have had the funding tx created), and that they are removed once
// the channel is successfully closed.
let chanmon_cfgs = create_chanmon_cfgs(2);
let accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), &accept_channel);
- let (temporary_channel_id, tx, _funding_output) = create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 1_000_000, 42);
+ let (temporary_channel_id, tx, funding_output) = create_funding_transaction(&nodes[0], &nodes[1].node.get_our_node_id(), 1_000_000, 42);
let channel_id = ChannelId::from_bytes(tx.txid().to_byte_array());
{
- // Ensure that the `id_to_peer` map is empty until either party has received the
+ // Ensure that the `outpoint_to_peer` map is empty until either party has received the
// funding transaction, and have the real `channel_id`.
- assert_eq!(nodes[0].node.id_to_peer.lock().unwrap().len(), 0);
- assert_eq!(nodes[1].node.id_to_peer.lock().unwrap().len(), 0);
+ assert_eq!(nodes[0].node.outpoint_to_peer.lock().unwrap().len(), 0);
+ assert_eq!(nodes[1].node.outpoint_to_peer.lock().unwrap().len(), 0);
}
nodes[0].node.funding_transaction_generated(&temporary_channel_id, &nodes[1].node.get_our_node_id(), tx.clone()).unwrap();
{
- // Assert that `nodes[0]`'s `id_to_peer` map is populated with the channel as soon as
+ // Assert that `nodes[0]`'s `outpoint_to_peer` map is populated with the channel as soon as
// as it has the funding transaction.
- let nodes_0_lock = nodes[0].node.id_to_peer.lock().unwrap();
+ let nodes_0_lock = nodes[0].node.outpoint_to_peer.lock().unwrap();
assert_eq!(nodes_0_lock.len(), 1);
- assert!(nodes_0_lock.contains_key(&channel_id));
+ assert!(nodes_0_lock.contains_key(&funding_output));
}
- assert_eq!(nodes[1].node.id_to_peer.lock().unwrap().len(), 0);
+ assert_eq!(nodes[1].node.outpoint_to_peer.lock().unwrap().len(), 0);
let funding_created_msg = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
nodes[1].node.handle_funding_created(&nodes[0].node.get_our_node_id(), &funding_created_msg);
{
- let nodes_0_lock = nodes[0].node.id_to_peer.lock().unwrap();
+ let nodes_0_lock = nodes[0].node.outpoint_to_peer.lock().unwrap();
assert_eq!(nodes_0_lock.len(), 1);
- assert!(nodes_0_lock.contains_key(&channel_id));
+ assert!(nodes_0_lock.contains_key(&funding_output));
}
expect_channel_pending_event(&nodes[1], &nodes[0].node.get_our_node_id());
{
- // Assert that `nodes[1]`'s `id_to_peer` map is populated with the channel as soon as
- // as it has the funding transaction.
- let nodes_1_lock = nodes[1].node.id_to_peer.lock().unwrap();
+ // Assert that `nodes[1]`'s `outpoint_to_peer` map is populated with the channel as
+ // soon as it has the funding transaction.
+ let nodes_1_lock = nodes[1].node.outpoint_to_peer.lock().unwrap();
assert_eq!(nodes_1_lock.len(), 1);
- assert!(nodes_1_lock.contains_key(&channel_id));
+ assert!(nodes_1_lock.contains_key(&funding_output));
}
check_added_monitors!(nodes[1], 1);
let funding_signed = get_event_msg!(nodes[1], MessageSendEvent::SendFundingSigned, nodes[0].node.get_our_node_id());
let closing_signed_node_0 = get_event_msg!(nodes[0], MessageSendEvent::SendClosingSigned, nodes[1].node.get_our_node_id());
nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &closing_signed_node_0);
{
- // Assert that the channel is kept in the `id_to_peer` map for both nodes until the
+ // Assert that the channel is kept in the `outpoint_to_peer` map for both nodes until the
// channel can be fully closed by both parties (i.e. no outstanding htlcs exists, the
// fee for the closing transaction has been negotiated and the parties has the other
// party's signature for the fee negotiated closing transaction.)
- let nodes_0_lock = nodes[0].node.id_to_peer.lock().unwrap();
+ let nodes_0_lock = nodes[0].node.outpoint_to_peer.lock().unwrap();
assert_eq!(nodes_0_lock.len(), 1);
- assert!(nodes_0_lock.contains_key(&channel_id));
+ assert!(nodes_0_lock.contains_key(&funding_output));
}
{
// At this stage, `nodes[1]` has proposed a fee for the closing transaction in the
// `handle_closing_signed` call above. As `nodes[1]` has not yet received the signature
// from `nodes[0]` for the closing transaction with the proposed fee, the channel is
- // kept in the `nodes[1]`'s `id_to_peer` map.
- let nodes_1_lock = nodes[1].node.id_to_peer.lock().unwrap();
+ // kept in the `nodes[1]`'s `outpoint_to_peer` map.
+ let nodes_1_lock = nodes[1].node.outpoint_to_peer.lock().unwrap();
assert_eq!(nodes_1_lock.len(), 1);
- assert!(nodes_1_lock.contains_key(&channel_id));
+ assert!(nodes_1_lock.contains_key(&funding_output));
}
nodes[0].node.handle_closing_signed(&nodes[1].node.get_our_node_id(), &get_event_msg!(nodes[1], MessageSendEvent::SendClosingSigned, nodes[0].node.get_our_node_id()));
// `nodes[0]` accepts `nodes[1]`'s proposed fee for the closing transaction, and
// therefore has all it needs to fully close the channel (both signatures for the
// closing transaction).
- // Assert that the channel is removed from `nodes[0]`'s `id_to_peer` map as it can be
+ // Assert that the channel is removed from `nodes[0]`'s `outpoint_to_peer` map as it can be
// fully closed by `nodes[0]`.
- assert_eq!(nodes[0].node.id_to_peer.lock().unwrap().len(), 0);
+ assert_eq!(nodes[0].node.outpoint_to_peer.lock().unwrap().len(), 0);
- // Assert that the channel is still in `nodes[1]`'s `id_to_peer` map, as `nodes[1]`
+ // Assert that the channel is still in `nodes[1]`'s `outpoint_to_peer` map, as `nodes[1]`
// doesn't have `nodes[0]`'s signature for the closing transaction yet.
- let nodes_1_lock = nodes[1].node.id_to_peer.lock().unwrap();
+ let nodes_1_lock = nodes[1].node.outpoint_to_peer.lock().unwrap();
assert_eq!(nodes_1_lock.len(), 1);
- assert!(nodes_1_lock.contains_key(&channel_id));
+ assert!(nodes_1_lock.contains_key(&funding_output));
}
let (_nodes_0_update, closing_signed_node_0) = get_closing_signed_broadcast!(nodes[0].node, nodes[1].node.get_our_node_id());
nodes[1].node.handle_closing_signed(&nodes[0].node.get_our_node_id(), &closing_signed_node_0.unwrap());
{
- // Assert that the channel has now been removed from both parties `id_to_peer` map once
+ // Assert that the channel has now been removed from both parties `outpoint_to_peer` map once
// they both have everything required to fully close the channel.
- assert_eq!(nodes[1].node.id_to_peer.lock().unwrap().len(), 0);
+ assert_eq!(nodes[1].node.outpoint_to_peer.lock().unwrap().len(), 0);
}
let (_nodes_1_update, _none) = get_closing_signed_broadcast!(nodes[1].node, nodes[0].node.get_our_node_id());
- check_closed_event!(nodes[0], 1, ClosureReason::CooperativeClosure, [nodes[1].node.get_our_node_id()], 1000000);
- check_closed_event!(nodes[1], 1, ClosureReason::CooperativeClosure, [nodes[0].node.get_our_node_id()], 1000000);
+ check_closed_event!(nodes[0], 1, ClosureReason::LocallyInitiatedCooperativeClosure, [nodes[1].node.get_our_node_id()], 1000000);
+ check_closed_event!(nodes[1], 1, ClosureReason::CounterpartyInitiatedCooperativeClosure, [nodes[0].node.get_our_node_id()], 1000000);
}
fn check_not_connected_to_peer_error<T>(res_err: Result<T, APIError>, expected_public_key: PublicKey) {
check_added_monitors!(nodes[0], 1);
expect_channel_pending_event(&nodes[0], &nodes[1].node.get_our_node_id());
}
- open_channel_msg.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
+ open_channel_msg.common_fields.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
}
// A MAX_UNFUNDED_CHANS_PER_PEER + 1 channel will be summarily rejected
- open_channel_msg.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
+ open_channel_msg.common_fields.temporary_channel_id = ChannelId::temporary_from_entropy_source(
+ &nodes[0].keys_manager);
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_msg);
assert_eq!(get_err_msg(&nodes[1], &nodes[0].node.get_our_node_id()).channel_id,
- open_channel_msg.temporary_channel_id);
+ open_channel_msg.common_fields.temporary_channel_id);
// Further, because all of our channels with nodes[0] are inbound, and none of them funded,
// it doesn't count as a "protected" peer, i.e. it counts towards the MAX_NO_CHANNEL_PEERS
for i in 0..super::MAX_UNFUNDED_CHANNEL_PEERS - 1 {
nodes[1].node.handle_open_channel(&peer_pks[i], &open_channel_msg);
get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, peer_pks[i]);
- open_channel_msg.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
+ open_channel_msg.common_fields.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
}
nodes[1].node.handle_open_channel(&last_random_pk, &open_channel_msg);
assert_eq!(get_err_msg(&nodes[1], &last_random_pk).channel_id,
- open_channel_msg.temporary_channel_id);
+ open_channel_msg.common_fields.temporary_channel_id);
// Of course, however, outbound channels are always allowed
nodes[1].node.create_channel(last_random_pk, 100_000, 0, 42, None, None).unwrap();
for _ in 0..super::MAX_UNFUNDED_CHANS_PER_PEER {
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_msg);
get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
- open_channel_msg.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
+ open_channel_msg.common_fields.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
}
// Once we have MAX_UNFUNDED_CHANS_PER_PEER unfunded channels, new inbound channels will be
// rejected.
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_msg);
assert_eq!(get_err_msg(&nodes[1], &nodes[0].node.get_our_node_id()).channel_id,
- open_channel_msg.temporary_channel_id);
+ open_channel_msg.common_fields.temporary_channel_id);
// but we can still open an outbound channel.
nodes[1].node.create_channel(nodes[0].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
// but even with such an outbound channel, additional inbound channels will still fail.
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_msg);
assert_eq!(get_err_msg(&nodes[1], &nodes[0].node.get_our_node_id()).channel_id,
- open_channel_msg.temporary_channel_id);
+ open_channel_msg.common_fields.temporary_channel_id);
}
#[test]
_ => panic!("Unexpected event"),
}
get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, random_pk);
- open_channel_msg.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
+ open_channel_msg.common_fields.temporary_channel_id = ChannelId::temporary_from_entropy_source(&nodes[0].keys_manager);
}
// If we try to accept a channel from another peer non-0conf it will fail.
_ => panic!("Unexpected event"),
}
assert_eq!(get_err_msg(&nodes[1], &last_random_pk).channel_id,
- open_channel_msg.temporary_channel_id);
+ open_channel_msg.common_fields.temporary_channel_id);
// ...however if we accept the same channel 0conf it should work just fine.
nodes[1].node.handle_open_channel(&last_random_pk, &open_channel_msg);
let sender_intended_amt_msat = 100;
let extra_fee_msat = 10;
let hop_data = msgs::InboundOnionPayload::Receive {
- amt_msat: 100,
- outgoing_cltv_value: 42,
+ sender_intended_htlc_amt_msat: 100,
+ cltv_expiry_height: 42,
payment_metadata: None,
keysend_preimage: None,
payment_data: Some(msgs::FinalOnionHopData {
};
// Check that if the amount we received + the penultimate hop extra fee is less than the sender
// intended amount, we fail the payment.
- let current_height: u32 = node[0].node.best_block.read().unwrap().height();
- if let Err(crate::ln::channelmanager::InboundOnionErr { err_code, .. }) =
+ let current_height: u32 = node[0].node.best_block.read().unwrap().height;
+ if let Err(crate::ln::channelmanager::InboundHTLCErr { err_code, .. }) =
create_recv_pending_htlc_info(hop_data, [0; 32], PaymentHash([0; 32]),
sender_intended_amt_msat - extra_fee_msat - 1, 42, None, true, Some(extra_fee_msat),
current_height, node[0].node.default_configuration.accept_mpp_keysend)
// If amt_received + extra_fee is equal to the sender intended amount, we're fine.
let hop_data = msgs::InboundOnionPayload::Receive { // This is the same payload as above, InboundOnionPayload doesn't implement Clone
- amt_msat: 100,
- outgoing_cltv_value: 42,
+ sender_intended_htlc_amt_msat: 100,
+ cltv_expiry_height: 42,
payment_metadata: None,
keysend_preimage: None,
payment_data: Some(msgs::FinalOnionHopData {
}),
custom_tlvs: Vec::new(),
};
- let current_height: u32 = node[0].node.best_block.read().unwrap().height();
+ let current_height: u32 = node[0].node.best_block.read().unwrap().height;
assert!(create_recv_pending_htlc_info(hop_data, [0; 32], PaymentHash([0; 32]),
sender_intended_amt_msat - extra_fee_msat, 42, None, true, Some(extra_fee_msat),
current_height, node[0].node.default_configuration.accept_mpp_keysend).is_ok());
let node_chanmgr = create_node_chanmgrs(1, &node_cfg, &[None]);
let node = create_network(1, &node_cfg, &node_chanmgr);
- let current_height: u32 = node[0].node.best_block.read().unwrap().height();
+ let current_height: u32 = node[0].node.best_block.read().unwrap().height;
let result = create_recv_pending_htlc_info(msgs::InboundOnionPayload::Receive {
- amt_msat: 100,
- outgoing_cltv_value: 22,
+ sender_intended_htlc_amt_msat: 100,
+ cltv_expiry_height: 22,
payment_metadata: None,
keysend_preimage: None,
payment_data: Some(msgs::FinalOnionHopData {
nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 100_000, 0, 0, None, None).unwrap();
let open_channel_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
- assert!(open_channel_msg.channel_type.as_ref().unwrap().supports_anchors_zero_fee_htlc_tx());
+ assert!(open_channel_msg.common_fields.channel_type.as_ref().unwrap().supports_anchors_zero_fee_htlc_tx());
nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), &open_channel_msg);
let events = nodes[1].node.get_and_clear_pending_events();
nodes[0].node.handle_error(&nodes[1].node.get_our_node_id(), &error_msg);
let open_channel_msg = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
- assert!(!open_channel_msg.channel_type.unwrap().supports_anchors_zero_fee_htlc_tx());
+ assert!(!open_channel_msg.common_fields.channel_type.unwrap().supports_anchors_zero_fee_htlc_tx());
// Since nodes[1] should not have accepted the channel, it should
// not have generated any events.
}
#[test]
- fn test_peel_payment_onion() {
- use super::*;
- let secp_ctx = Secp256k1::new();
-
- let bob = crate::sign::KeysManager::new(&[2; 32], 42, 42);
- let bob_pk = PublicKey::from_secret_key(&secp_ctx, &bob.get_node_secret_key());
- let charlie = crate::sign::KeysManager::new(&[3; 32], 42, 42);
- let charlie_pk = PublicKey::from_secret_key(&secp_ctx, &charlie.get_node_secret_key());
-
- let (session_priv, total_amt_msat, cur_height, recipient_onion, preimage, payment_hash,
- prng_seed, hops, recipient_amount, pay_secret) = payment_onion_args(bob_pk, charlie_pk);
-
- let path = Path {
- hops: hops,
- blinded_tail: None,
+ fn test_malformed_forward_htlcs_ser() {
+ // Ensure that `HTLCForwardInfo::FailMalformedHTLC`s are (de)serialized properly.
+ let chanmon_cfg = create_chanmon_cfgs(1);
+ let node_cfg = create_node_cfgs(1, &chanmon_cfg);
+ let persister;
+ let chain_monitor;
+ let chanmgrs = create_node_chanmgrs(1, &node_cfg, &[None]);
+ let deserialized_chanmgr;
+ let mut nodes = create_network(1, &node_cfg, &chanmgrs);
+
+ let dummy_failed_htlc = |htlc_id| {
+ HTLCForwardInfo::FailHTLC { htlc_id, err_packet: msgs::OnionErrorPacket { data: vec![42] }, }
+ };
+ let dummy_malformed_htlc = |htlc_id| {
+ HTLCForwardInfo::FailMalformedHTLC { htlc_id, failure_code: 0x4000, sha256_of_onion: [0; 32] }
};
- let (amount_msat, cltv_expiry, onion) = create_payment_onion(
- &secp_ctx, &path, &session_priv, total_amt_msat, recipient_onion, cur_height,
- payment_hash, Some(preimage), prng_seed
- ).unwrap();
+ let dummy_htlcs_1: Vec<HTLCForwardInfo> = (1..10).map(|htlc_id| {
+ if htlc_id % 2 == 0 {
+ dummy_failed_htlc(htlc_id)
+ } else {
+ dummy_malformed_htlc(htlc_id)
+ }
+ }).collect();
- let msg = make_update_add_msg(amount_msat, cltv_expiry, payment_hash, onion);
- let logger = test_utils::TestLogger::with_id("bob".to_string());
+ let dummy_htlcs_2: Vec<HTLCForwardInfo> = (1..10).map(|htlc_id| {
+ if htlc_id % 2 == 1 {
+ dummy_failed_htlc(htlc_id)
+ } else {
+ dummy_malformed_htlc(htlc_id)
+ }
+ }).collect();
- let peeled = peel_payment_onion(&msg, &&bob, &&logger, &secp_ctx, cur_height, true)
- .map_err(|e| e.msg).unwrap();
- let next_onion = match peeled.routing {
- PendingHTLCRouting::Forward { onion_packet, short_channel_id: _ } => {
- onion_packet
- },
- _ => panic!("expected a forwarded onion"),
- };
+ let (scid_1, scid_2) = (42, 43);
+ let mut forward_htlcs = new_hash_map();
+ forward_htlcs.insert(scid_1, dummy_htlcs_1.clone());
+ forward_htlcs.insert(scid_2, dummy_htlcs_2.clone());
- let msg2 = make_update_add_msg(amount_msat, cltv_expiry, payment_hash, next_onion);
- let peeled2 = peel_payment_onion(&msg2, &&charlie, &&logger, &secp_ctx, cur_height, true)
- .map_err(|e| e.msg).unwrap();
-
- match peeled2.routing {
- PendingHTLCRouting::ReceiveKeysend { payment_preimage, payment_data, incoming_cltv_expiry, .. } => {
- assert_eq!(payment_preimage, preimage);
- assert_eq!(peeled2.outgoing_amt_msat, recipient_amount);
- assert_eq!(incoming_cltv_expiry, peeled2.outgoing_cltv_value);
- let msgs::FinalOnionHopData{total_msat, payment_secret} = payment_data.unwrap();
- assert_eq!(total_msat, total_amt_msat);
- assert_eq!(payment_secret, pay_secret);
- },
- _ => panic!("expected a received keysend"),
- };
- }
+ let mut chanmgr_fwd_htlcs = nodes[0].node.forward_htlcs.lock().unwrap();
+ *chanmgr_fwd_htlcs = forward_htlcs.clone();
+ core::mem::drop(chanmgr_fwd_htlcs);
+
+ reload_node!(nodes[0], nodes[0].node.encode(), &[], persister, chain_monitor, deserialized_chanmgr);
- fn make_update_add_msg(
- amount_msat: u64, cltv_expiry: u32, payment_hash: PaymentHash,
- onion_routing_packet: msgs::OnionPacket
- ) -> msgs::UpdateAddHTLC {
- msgs::UpdateAddHTLC {
- channel_id: ChannelId::from_bytes([0; 32]),
- htlc_id: 0,
- amount_msat,
- cltv_expiry,
- payment_hash,
- onion_routing_packet,
- skimmed_fee_msat: None,
+ let mut deserialized_fwd_htlcs = nodes[0].node.forward_htlcs.lock().unwrap();
+ for scid in [scid_1, scid_2].iter() {
+ let deserialized_htlcs = deserialized_fwd_htlcs.remove(scid).unwrap();
+ assert_eq!(forward_htlcs.remove(scid).unwrap(), deserialized_htlcs);
}
- }
+ assert!(deserialized_fwd_htlcs.is_empty());
+ core::mem::drop(deserialized_fwd_htlcs);
- fn payment_onion_args(hop_pk: PublicKey, recipient_pk: PublicKey) -> (
- SecretKey, u64, u32, RecipientOnionFields, PaymentPreimage, PaymentHash, [u8; 32],
- Vec<RouteHop>, u64, PaymentSecret,
- ) {
- let session_priv_bytes = [42; 32];
- let session_priv = SecretKey::from_slice(&session_priv_bytes).unwrap();
- let total_amt_msat = 1000;
- let cur_height = 1000;
- let pay_secret = PaymentSecret([99; 32]);
- let recipient_onion = RecipientOnionFields::secret_only(pay_secret);
- let preimage_bytes = [43; 32];
- let preimage = PaymentPreimage(preimage_bytes);
- let rhash_bytes = Sha256::hash(&preimage_bytes).to_byte_array();
- let payment_hash = PaymentHash(rhash_bytes);
- let prng_seed = [44; 32];
-
- // make a route alice -> bob -> charlie
- let hop_fee = 1;
- let recipient_amount = total_amt_msat - hop_fee;
- let hops = vec![
- RouteHop {
- pubkey: hop_pk,
- fee_msat: hop_fee,
- cltv_expiry_delta: 42,
- short_channel_id: 1,
- node_features: NodeFeatures::empty(),
- channel_features: ChannelFeatures::empty(),
- maybe_announced_channel: false,
- },
- RouteHop {
- pubkey: recipient_pk,
- fee_msat: recipient_amount,
- cltv_expiry_delta: 42,
- short_channel_id: 2,
- node_features: NodeFeatures::empty(),
- channel_features: ChannelFeatures::empty(),
- maybe_announced_channel: false,
- }
- ];
-
- (session_priv, total_amt_msat, cur_height, recipient_onion, preimage, payment_hash,
- prng_seed, hops, recipient_amount, pay_secret)
- }
-
- pub fn create_payment_onion<T: bitcoin::secp256k1::Signing>(
- secp_ctx: &Secp256k1<T>, path: &Path, session_priv: &SecretKey, total_msat: u64,
- recipient_onion: RecipientOnionFields, best_block_height: u32, payment_hash: PaymentHash,
- keysend_preimage: Option<PaymentPreimage>, prng_seed: [u8; 32]
- ) -> Result<(u64, u32, msgs::OnionPacket), ()> {
- let onion_keys = super::onion_utils::construct_onion_keys(&secp_ctx, &path, &session_priv).map_err(|_| ())?;
- let (onion_payloads, htlc_msat, htlc_cltv) = super::onion_utils::build_onion_payloads(
- &path,
- total_msat,
- recipient_onion,
- best_block_height + 1,
- &keysend_preimage,
- ).map_err(|_| ())?;
- let onion_packet = super::onion_utils::construct_onion_packet(
- onion_payloads, onion_keys, prng_seed, &payment_hash
- )?;
- Ok((htlc_msat, htlc_cltv, onion_packet))
+ expect_pending_htlcs_forwardable!(nodes[0]);
}
}
use bitcoin::blockdata::locktime::absolute::LockTime;
use bitcoin::hashes::Hash;
use bitcoin::hashes::sha256::Hash as Sha256;
- use bitcoin::{Block, Transaction, TxOut};
+ use bitcoin::{Transaction, TxOut};
use crate::sync::{Arc, Mutex, RwLock};
let fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: Mutex::new(253) };
let logger_a = test_utils::TestLogger::with_id("node a".to_owned());
let scorer = RwLock::new(test_utils::TestScorer::new());
- let router = test_utils::TestRouter::new(Arc::new(NetworkGraph::new(network, &logger_a)), &scorer);
+ let router = test_utils::TestRouter::new(Arc::new(NetworkGraph::new(network, &logger_a)), &logger_a, &scorer);
let mut config: UserConfig = Default::default();
config.channel_config.max_dust_htlc_exposure = MaxDustHTLCExposure::FeeRateMultiplier(5_000_000 / 253);
assert_eq!(&tx_broadcaster.txn_broadcasted.lock().unwrap()[..], &[tx.clone()]);
- let block = create_dummy_block(BestBlock::from_network(network).block_hash(), 42, vec![tx]);
+ let block = create_dummy_block(BestBlock::from_network(network).block_hash, 42, vec![tx]);
Listen::block_connected(&node_a, &block, 1);
Listen::block_connected(&node_b, &block, 1);