//! future, as well as generate and broadcast funding transactions handle payment preimages and a
//! few other things.
-#[cfg(anchors)]
pub mod bump_transaction;
-#[cfg(anchors)]
pub use bump_transaction::BumpTransactionEvent;
-use crate::chain::keysinterface::SpendableOutputDescriptor;
-use crate::ln::channelmanager::{InterceptId, PaymentId};
+use crate::sign::SpendableOutputDescriptor;
+use crate::ln::channelmanager::{InterceptId, PaymentId, RecipientOnionFields};
use crate::ln::channel::FUNDING_CONF_DEADLINE_BLOCKS;
use crate::ln::features::ChannelTypeFeatures;
use crate::ln::msgs;
-use crate::ln::{PaymentPreimage, PaymentHash, PaymentSecret};
+use crate::ln::{ChannelId, PaymentPreimage, PaymentHash, PaymentSecret};
use crate::routing::gossip::NetworkUpdate;
use crate::util::errors::APIError;
use crate::util::ser::{BigSize, FixedLengthReader, Writeable, Writer, MaybeReadable, Readable, RequiredWrapper, UpgradableRequired, WithoutLength};
use crate::util::string::UntrustedString;
-use crate::routing::router::{RouteHop, RouteParameters};
+use crate::routing::router::{BlindedTail, Path, RouteHop, RouteParameters};
-use bitcoin::{PackedLockTime, Transaction, OutPoint};
-#[cfg(anchors)]
-use bitcoin::{Txid, TxIn, TxOut, Witness};
-use bitcoin::blockdata::script::Script;
+use bitcoin::{Transaction, OutPoint};
+use bitcoin::blockdata::locktime::absolute::LockTime;
+use bitcoin::blockdata::script::ScriptBuf;
use bitcoin::hashes::Hash;
use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::secp256k1::PublicKey;
(2, SpontaneousPayment)
);
+/// Information about an HTLC that is part of a payment that can be claimed.
+#[derive(Clone, Debug, PartialEq, Eq)]
+pub struct ClaimedHTLC {
+ /// The `channel_id` of the channel over which the HTLC was received.
+ pub channel_id: ChannelId,
+ /// The `user_channel_id` of the channel over which the HTLC was received. This is the value
+ /// passed in to [`ChannelManager::create_channel`] for outbound channels, or to
+ /// [`ChannelManager::accept_inbound_channel`] for inbound channels if
+ /// [`UserConfig::manually_accept_inbound_channels`] config flag is set to true. Otherwise
+ /// `user_channel_id` will be randomized for an inbound channel.
+ ///
+ /// This field will be zero for a payment that was serialized prior to LDK version 0.0.117. (This
+ /// should only happen in the case that a payment was claimable prior to LDK version 0.0.117, but
+ /// was not actually claimed until after upgrading.)
+ ///
+ /// [`ChannelManager::create_channel`]: crate::ln::channelmanager::ChannelManager::create_channel
+ /// [`ChannelManager::accept_inbound_channel`]: crate::ln::channelmanager::ChannelManager::accept_inbound_channel
+ /// [`UserConfig::manually_accept_inbound_channels`]: crate::util::config::UserConfig::manually_accept_inbound_channels
+ pub user_channel_id: u128,
+ /// The block height at which this HTLC expires.
+ pub cltv_expiry: u32,
+ /// The amount (in msats) of this part of an MPP.
+ pub value_msat: u64,
+ /// The extra fee our counterparty skimmed off the top of this HTLC, if any.
+ ///
+ /// This value will always be 0 for [`ClaimedHTLC`]s serialized with LDK versions prior to
+ /// 0.0.119.
+ pub counterparty_skimmed_fee_msat: u64,
+}
+impl_writeable_tlv_based!(ClaimedHTLC, {
+ (0, channel_id, required),
+ (1, counterparty_skimmed_fee_msat, (default_value, 0u64)),
+ (2, user_channel_id, required),
+ (4, cltv_expiry, required),
+ (6, value_msat, required),
+});
+
/// When the payment path failure took place and extra details about it. [`PathFailure::OnPath`] may
/// contain a [`NetworkUpdate`] that needs to be applied to the [`NetworkGraph`].
///
);
#[derive(Clone, Debug, PartialEq, Eq)]
-/// The reason the channel was closed. See individual variants more details.
+/// The reason the channel was closed. See individual variants for more details.
pub enum ClosureReason {
/// Closure generated from receiving a peer error message.
///
/// Be careful about printing the peer_msg, a well-crafted message could exploit
/// a security vulnerability in the terminal emulator or the logging subsystem.
/// To be safe, use `Display` on `UntrustedString`
- ///
+ ///
/// [`UntrustedString`]: crate::util::string::UntrustedString
peer_msg: UntrustedString,
},
///
/// [`ChannelMonitor`]: crate::chain::channelmonitor::ChannelMonitor
/// [`ChannelManager`]: crate::ln::channelmanager::ChannelManager
- OutdatedChannelManager
+ OutdatedChannelManager,
+ /// The counterparty requested a cooperative close of a channel that had not been funded yet.
+ /// The channel has been immediately closed.
+ CounterpartyCoopClosedUnfundedChannel,
+ /// Another channel in the same funding batch closed before the funding transaction
+ /// was ready to be broadcast.
+ FundingBatchClosure,
}
impl core::fmt::Display for ClosureReason {
},
ClosureReason::DisconnectedPeer => f.write_str("the peer disconnected prior to the channel being funded"),
ClosureReason::OutdatedChannelManager => f.write_str("the ChannelManager read from disk was stale compared to ChannelMonitor(s)"),
+ ClosureReason::CounterpartyCoopClosedUnfundedChannel => f.write_str("the peer requested the unfunded channel be closed"),
+ ClosureReason::FundingBatchClosure => f.write_str("another channel in the same funding batch closed"),
}
}
}
(8, ProcessingError) => { (1, err, required) },
(10, DisconnectedPeer) => {},
(12, OutdatedChannelManager) => {},
+ (13, CounterpartyCoopClosedUnfundedChannel) => {},
+ (15, FundingBatchClosure) => {}
);
/// Intended destination of a failed HTLC as indicated in [`Event::HTLCHandlingFailed`].
/// counterparty node information.
node_id: Option<PublicKey>,
/// The outgoing `channel_id` between us and the next node.
- channel_id: [u8; 32],
+ channel_id: ChannelId,
},
/// Scenario where we are unsure of the next node to forward the HTLC to.
UnknownNextHop {
///
/// Some of the reasons may include:
/// * HTLC Timeouts
- /// * Expected MPP amount has already been reached
- /// * Claimable amount does not match expected amount
+ /// * Excess HTLCs for a payment that we have already fully received, over-paying for the
+ /// payment,
+ /// * The counterparty node modified the HTLC in transit,
+ /// * A probing attack where an intermediary node is trying to detect if we are the ultimate
+ /// recipient for a payment.
FailedPayment {
/// The payment hash of the payment we attempted to process.
payment_hash: PaymentHash
};
);
+/// The reason the payment failed. Used in [`Event::PaymentFailed`].
+#[derive(Clone, Copy, Debug, PartialEq, Eq)]
+pub enum PaymentFailureReason {
+ /// The intended recipient rejected our payment.
+ RecipientRejected,
+ /// The user chose to abandon this payment by calling [`ChannelManager::abandon_payment`].
+ ///
+ /// [`ChannelManager::abandon_payment`]: crate::ln::channelmanager::ChannelManager::abandon_payment
+ UserAbandoned,
+ /// We exhausted all of our retry attempts while trying to send the payment, or we
+ /// exhausted the [`Retry::Timeout`] if the user set one. If at any point a retry
+ /// attempt failed while being forwarded along the path, an [`Event::PaymentPathFailed`] will
+ /// have come before this.
+ ///
+ /// [`Retry::Timeout`]: crate::ln::channelmanager::Retry::Timeout
+ RetriesExhausted,
+ /// The payment expired while retrying, based on the provided
+ /// [`PaymentParameters::expiry_time`].
+ ///
+ /// [`PaymentParameters::expiry_time`]: crate::routing::router::PaymentParameters::expiry_time
+ PaymentExpired,
+ /// We failed to find a route while retrying the payment.
+ RouteNotFound,
+ /// This error should generally never happen. This likely means that there is a problem with
+ /// your router.
+ UnexpectedError,
+}
+
+impl_writeable_tlv_based_enum!(PaymentFailureReason,
+ (0, RecipientRejected) => {},
+ (2, UserAbandoned) => {},
+ (4, RetriesExhausted) => {},
+ (6, PaymentExpired) => {},
+ (8, RouteNotFound) => {},
+ (10, UnexpectedError) => {}, ;
+);
+
/// An Event which you should probably take some action in response to.
///
/// Note that while Writeable and Readable are implemented for Event, you probably shouldn't use
/// [`ChannelManager::funding_transaction_generated`].
///
/// [`ChannelManager::funding_transaction_generated`]: crate::ln::channelmanager::ChannelManager::funding_transaction_generated
- temporary_channel_id: [u8; 32],
+ temporary_channel_id: ChannelId,
/// The counterparty's node_id, which you'll need to pass back into
/// [`ChannelManager::funding_transaction_generated`].
///
/// The value, in satoshis, that the output should have.
channel_value_satoshis: u64,
/// The script which should be used in the transaction output.
- output_script: Script,
- /// The `user_channel_id` value passed in to [`ChannelManager::create_channel`], or a
- /// random value for an inbound channel. This may be zero for objects serialized with LDK
- /// versions prior to 0.0.113.
+ output_script: ScriptBuf,
+ /// The `user_channel_id` value passed in to [`ChannelManager::create_channel`] for outbound
+ /// channels, or to [`ChannelManager::accept_inbound_channel`] for inbound channels if
+ /// [`UserConfig::manually_accept_inbound_channels`] config flag is set to true. Otherwise
+ /// `user_channel_id` will be randomized for an inbound channel. This may be zero for objects
+ /// serialized with LDK versions prior to 0.0.113.
///
/// [`ChannelManager::create_channel`]: crate::ln::channelmanager::ChannelManager::create_channel
+ /// [`ChannelManager::accept_inbound_channel`]: crate::ln::channelmanager::ChannelManager::accept_inbound_channel
+ /// [`UserConfig::manually_accept_inbound_channels`]: crate::util::config::UserConfig::manually_accept_inbound_channels
user_channel_id: u128,
},
/// Indicates that we've been offered a payment and it needs to be claimed via calling
/// Note that if the preimage is not known, you should call
/// [`ChannelManager::fail_htlc_backwards`] or [`ChannelManager::fail_htlc_backwards_with_reason`]
/// to free up resources for this HTLC and avoid network congestion.
- /// If you fail to call either [`ChannelManager::claim_funds`], [`ChannelManager::fail_htlc_backwards`],
- /// or [`ChannelManager::fail_htlc_backwards_with_reason`] within the HTLC's timeout, the HTLC will be
- /// automatically failed.
+ ///
+ /// If [`Event::PaymentClaimable::onion_fields`] is `Some`, and includes custom TLVs with even type
+ /// numbers, you should use [`ChannelManager::fail_htlc_backwards_with_reason`] with
+ /// [`FailureCode::InvalidOnionPayload`] if you fail to understand and handle the contents, or
+ /// [`ChannelManager::claim_funds_with_known_custom_tlvs`] upon successful handling.
+ /// If you don't intend to check for custom TLVs, you can simply use
+ /// [`ChannelManager::claim_funds`], which will automatically fail back even custom TLVs.
+ ///
+ /// If you fail to call [`ChannelManager::claim_funds`],
+ /// [`ChannelManager::claim_funds_with_known_custom_tlvs`],
+ /// [`ChannelManager::fail_htlc_backwards`], or
+ /// [`ChannelManager::fail_htlc_backwards_with_reason`] within the HTLC's timeout, the HTLC will
+ /// be automatically failed.
///
/// # Note
/// LDK will not stop an inbound payment from being paid multiple times, so multiple
- /// `PaymentClaimable` events may be generated for the same payment.
+ /// `PaymentClaimable` events may be generated for the same payment. In such a case it is
+ /// polite (and required in the lightning specification) to fail the payment the second time
+ /// and give the sender their money back rather than accepting double payment.
///
/// # Note
/// This event used to be called `PaymentReceived` in LDK versions 0.0.112 and earlier.
///
/// [`ChannelManager::claim_funds`]: crate::ln::channelmanager::ChannelManager::claim_funds
+ /// [`ChannelManager::claim_funds_with_known_custom_tlvs`]: crate::ln::channelmanager::ChannelManager::claim_funds_with_known_custom_tlvs
+ /// [`FailureCode::InvalidOnionPayload`]: crate::ln::channelmanager::FailureCode::InvalidOnionPayload
/// [`ChannelManager::fail_htlc_backwards`]: crate::ln::channelmanager::ChannelManager::fail_htlc_backwards
/// [`ChannelManager::fail_htlc_backwards_with_reason`]: crate::ln::channelmanager::ChannelManager::fail_htlc_backwards_with_reason
PaymentClaimable {
/// This field will always be filled in when the event was generated by LDK versions
/// 0.0.113 and above.
///
- /// [phantom nodes]: crate::chain::keysinterface::PhantomKeysManager
+ /// [phantom nodes]: crate::sign::PhantomKeysManager
receiver_node_id: Option<PublicKey>,
/// The hash for which the preimage should be handed to the ChannelManager. Note that LDK will
/// not stop you from registering duplicate payment hashes for inbound payments.
payment_hash: PaymentHash,
- /// The value, in thousandths of a satoshi, that this payment is for.
+ /// The fields in the onion which were received with each HTLC. Only fields which were
+ /// identical in each HTLC involved in the payment will be included here.
+ ///
+ /// Payments received on LDK versions prior to 0.0.115 will have this field unset.
+ onion_fields: Option<RecipientOnionFields>,
+ /// The value, in thousandths of a satoshi, that this payment is claimable for. May be greater
+ /// than the invoice amount.
+ ///
+ /// May be less than the invoice amount if [`ChannelConfig::accept_underpaying_htlcs`] is set
+ /// and the previous hop took an extra fee.
+ ///
+ /// # Note
+ /// If [`ChannelConfig::accept_underpaying_htlcs`] is set and you claim without verifying this
+ /// field, you may lose money!
+ ///
+ /// [`ChannelConfig::accept_underpaying_htlcs`]: crate::util::config::ChannelConfig::accept_underpaying_htlcs
amount_msat: u64,
+ /// The value, in thousands of a satoshi, that was skimmed off of this payment as an extra fee
+ /// taken by our channel counterparty.
+ ///
+ /// Will always be 0 unless [`ChannelConfig::accept_underpaying_htlcs`] is set.
+ ///
+ /// [`ChannelConfig::accept_underpaying_htlcs`]: crate::util::config::ChannelConfig::accept_underpaying_htlcs
+ counterparty_skimmed_fee_msat: u64,
/// Information for claiming this received payment, based on whether the purpose of the
/// payment is to pay an invoice or to send a spontaneous payment.
purpose: PaymentPurpose,
/// The `channel_id` indicating over which channel we received the payment.
- via_channel_id: Option<[u8; 32]>,
+ via_channel_id: Option<ChannelId>,
/// The `user_channel_id` indicating over which channel we received the payment.
via_user_channel_id: Option<u128>,
+ /// The block height at which this payment will be failed back and will no longer be
+ /// eligible for claiming.
+ ///
+ /// Prior to this height, a call to [`ChannelManager::claim_funds`] is guaranteed to
+ /// succeed, however you should wait for [`Event::PaymentClaimed`] to be sure.
+ ///
+ /// [`ChannelManager::claim_funds`]: crate::ln::channelmanager::ChannelManager::claim_funds
+ claim_deadline: Option<u32>,
},
/// Indicates a payment has been claimed and we've received money!
///
/// This field will always be filled in when the event was generated by LDK versions
/// 0.0.113 and above.
///
- /// [phantom nodes]: crate::chain::keysinterface::PhantomKeysManager
+ /// [phantom nodes]: crate::sign::PhantomKeysManager
receiver_node_id: Option<PublicKey>,
/// The payment hash of the claimed payment. Note that LDK will not stop you from
/// registering duplicate payment hashes for inbound payments.
payment_hash: PaymentHash,
- /// The value, in thousandths of a satoshi, that this payment is for.
+ /// The value, in thousandths of a satoshi, that this payment is for. May be greater than the
+ /// invoice amount.
amount_msat: u64,
/// The purpose of the claimed payment, i.e. whether the payment was for an invoice or a
/// spontaneous payment.
purpose: PaymentPurpose,
+ /// The HTLCs that comprise the claimed payment. This will be empty for events serialized prior
+ /// to LDK version 0.0.117.
+ htlcs: Vec<ClaimedHTLC>,
+ /// The sender-intended sum total of all the MPP parts. This will be `None` for events
+ /// serialized prior to LDK version 0.0.117.
+ sender_intended_total_msat: Option<u64>,
+ },
+ /// Indicates a request for an invoice failed to yield a response in a reasonable amount of time
+ /// or was explicitly abandoned by [`ChannelManager::abandon_payment`]. This may be for an
+ /// [`InvoiceRequest`] sent for an [`Offer`] or for a [`Refund`] that hasn't been redeemed.
+ ///
+ /// [`ChannelManager::abandon_payment`]: crate::ln::channelmanager::ChannelManager::abandon_payment
+ /// [`InvoiceRequest`]: crate::offers::invoice_request::InvoiceRequest
+ /// [`Offer`]: crate::offers::offer::Offer
+ /// [`Refund`]: crate::offers::refund::Refund
+ InvoiceRequestFailed {
+ /// The `payment_id` to have been associated with payment for the requested invoice.
+ payment_id: PaymentId,
},
/// Indicates an outbound payment we made succeeded (i.e. it made it all the way to its target
/// and we got back the payment preimage for it).
/// Note for MPP payments: in rare cases, this event may be preceded by a `PaymentPathFailed`
/// event. In this situation, you SHOULD treat this payment as having succeeded.
PaymentSent {
- /// The id returned by [`ChannelManager::send_payment`].
+ /// The `payment_id` passed to [`ChannelManager::send_payment`].
///
/// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
payment_id: Option<PaymentId>,
/// payment is no longer retryable, due either to the [`Retry`] provided or
/// [`ChannelManager::abandon_payment`] having been called for the corresponding payment.
///
+ /// In exceedingly rare cases, it is possible that an [`Event::PaymentFailed`] is generated for
+ /// a payment after an [`Event::PaymentSent`] event for this same payment has already been
+ /// received and processed. In this case, the [`Event::PaymentFailed`] event MUST be ignored,
+ /// and the payment MUST be treated as having succeeded.
+ ///
/// [`Retry`]: crate::ln::channelmanager::Retry
/// [`ChannelManager::abandon_payment`]: crate::ln::channelmanager::ChannelManager::abandon_payment
PaymentFailed {
- /// The id returned by [`ChannelManager::send_payment`] and used with
- /// [`ChannelManager::abandon_payment`].
+ /// The `payment_id` passed to [`ChannelManager::send_payment`].
///
/// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
- /// [`ChannelManager::abandon_payment`]: crate::ln::channelmanager::ChannelManager::abandon_payment
payment_id: PaymentId,
/// The hash that was given to [`ChannelManager::send_payment`].
///
/// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
payment_hash: PaymentHash,
+ /// The reason the payment failed. This is only `None` for events generated or serialized
+ /// by versions prior to 0.0.115.
+ reason: Option<PaymentFailureReason>,
},
/// Indicates that a path for an outbound payment was successful.
///
/// Always generated after [`Event::PaymentSent`] and thus useful for scoring channels. See
/// [`Event::PaymentSent`] for obtaining the payment preimage.
PaymentPathSuccessful {
- /// The id returned by [`ChannelManager::send_payment`].
+ /// The `payment_id` passed to [`ChannelManager::send_payment`].
///
/// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
payment_id: PaymentId,
/// The hash that was given to [`ChannelManager::send_payment`].
///
+ /// This will be `Some` for all payments which completed on LDK 0.0.104 or later.
+ ///
/// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
payment_hash: Option<PaymentHash>,
/// The payment path that was successful.
///
/// May contain a closed channel if the HTLC sent along the path was fulfilled on chain.
- path: Vec<RouteHop>,
+ path: Path,
},
/// Indicates an outbound HTLC we sent failed, likely due to an intermediary node being unable to
/// handle the HTLC.
///
/// [`ChannelManager::abandon_payment`]: crate::ln::channelmanager::ChannelManager::abandon_payment
PaymentPathFailed {
- /// The id returned by [`ChannelManager::send_payment`] and used with
- /// [`ChannelManager::abandon_payment`].
+ /// The `payment_id` passed to [`ChannelManager::send_payment`].
+ ///
+ /// This will be `Some` for all payment paths which failed on LDK 0.0.103 or later.
///
/// [`ChannelManager::send_payment`]: crate::ln::channelmanager::ChannelManager::send_payment
/// [`ChannelManager::abandon_payment`]: crate::ln::channelmanager::ChannelManager::abandon_payment
/// [`NetworkGraph`]: crate::routing::gossip::NetworkGraph
failure: PathFailure,
/// The payment path that failed.
- path: Vec<RouteHop>,
+ path: Path,
/// The channel responsible for the failed payment path.
///
/// Note that for route hints or for the first hop in a path this may be an SCID alias and
/// [`ChannelManager::send_probe`]: crate::ln::channelmanager::ChannelManager::send_probe
payment_hash: PaymentHash,
/// The payment path that was successful.
- path: Vec<RouteHop>,
+ path: Path,
},
/// Indicates that a probe payment we sent failed at an intermediary node on the path.
ProbeFailed {
/// [`ChannelManager::send_probe`]: crate::ln::channelmanager::ChannelManager::send_probe
payment_hash: PaymentHash,
/// The payment path that failed.
- path: Vec<RouteHop>,
+ path: Path,
/// The channel responsible for the failed probe.
///
/// Note that for route hints or for the first hop in a path this may be an SCID alias and
inbound_amount_msat: u64,
/// How many msats the payer intended to route to the next node. Depending on the reason you are
/// intercepting this payment, you might take a fee by forwarding less than this amount.
+ /// Forwarding less than this amount may break compatibility with LDK versions prior to 0.0.116.
///
/// Note that LDK will NOT check that expected fees were factored into this value. You MUST
/// check that whatever fee you want has been included here or subtract it as required. Further,
SpendableOutputs {
/// The outputs which you should store as spendable by you.
outputs: Vec<SpendableOutputDescriptor>,
+ /// The `channel_id` indicating which channel the spendable outputs belong to.
+ ///
+ /// This will always be `Some` for events generated by LDK versions 0.0.117 and above.
+ channel_id: Option<ChannelId>,
},
/// This event is generated when a payment has been successfully forwarded through us and a
/// forwarding fee earned.
PaymentForwarded {
/// The incoming channel between the previous node and us. This is only `None` for events
/// generated or serialized by versions prior to 0.0.107.
- prev_channel_id: Option<[u8; 32]>,
+ prev_channel_id: Option<ChannelId>,
/// The outgoing channel between the next node and us. This is only `None` for events
/// generated or serialized by versions prior to 0.0.107.
- next_channel_id: Option<[u8; 32]>,
+ next_channel_id: Option<ChannelId>,
/// The fee, in milli-satoshis, which was earned as a result of the payment.
///
/// Note that if we force-closed the channel over which we forwarded an HTLC while the HTLC
/// [`Event::ChannelReady`] event.
ChannelPending {
/// The `channel_id` of the channel that is pending confirmation.
- channel_id: [u8; 32],
+ channel_id: ChannelId,
/// The `user_channel_id` value passed in to [`ChannelManager::create_channel`] for outbound
/// channels, or to [`ChannelManager::accept_inbound_channel`] for inbound channels if
/// [`UserConfig::manually_accept_inbound_channels`] config flag is set to true. Otherwise
/// The `temporary_channel_id` this channel used to be known by during channel establishment.
///
/// Will be `None` for channels created prior to LDK version 0.0.115.
- former_temporary_channel_id: Option<[u8; 32]>,
+ former_temporary_channel_id: Option<ChannelId>,
/// The `node_id` of the channel counterparty.
counterparty_node_id: PublicKey,
/// The outpoint of the channel's funding transaction.
/// establishment.
ChannelReady {
/// The `channel_id` of the channel that is ready.
- channel_id: [u8; 32],
+ channel_id: ChannelId,
/// The `user_channel_id` value passed in to [`ChannelManager::create_channel`] for outbound
/// channels, or to [`ChannelManager::accept_inbound_channel`] for inbound channels if
/// [`UserConfig::manually_accept_inbound_channels`] config flag is set to true. Otherwise
},
/// Used to indicate that a previously opened channel with the given `channel_id` is in the
/// process of closure.
+ ///
+ /// Note that this event is only triggered for accepted channels: if the
+ /// [`UserConfig::manually_accept_inbound_channels`] config flag is set to true and the channel is
+ /// rejected, no `ChannelClosed` event will be sent.
+ ///
+ /// [`ChannelManager::accept_inbound_channel`]: crate::ln::channelmanager::ChannelManager::accept_inbound_channel
+ /// [`UserConfig::manually_accept_inbound_channels`]: crate::util::config::UserConfig::manually_accept_inbound_channels
ChannelClosed {
/// The `channel_id` of the channel which has been closed. Note that on-chain transactions
/// resolving the channel are likely still awaiting confirmation.
- channel_id: [u8; 32],
+ channel_id: ChannelId,
/// The `user_channel_id` value passed in to [`ChannelManager::create_channel`] for outbound
/// channels, or to [`ChannelManager::accept_inbound_channel`] for inbound channels if
/// [`UserConfig::manually_accept_inbound_channels`] config flag is set to true. Otherwise
/// [`UserConfig::manually_accept_inbound_channels`]: crate::util::config::UserConfig::manually_accept_inbound_channels
user_channel_id: u128,
/// The reason the channel was closed.
- reason: ClosureReason
+ reason: ClosureReason,
+ /// Counterparty in the closed channel.
+ ///
+ /// This field will be `None` for objects serialized prior to LDK 0.0.117.
+ counterparty_node_id: Option<PublicKey>,
+ /// Channel capacity of the closing channel (sats).
+ ///
+ /// This field will be `None` for objects serialized prior to LDK 0.0.117.
+ channel_capacity_sats: Option<u64>,
},
/// Used to indicate to the user that they can abandon the funding transaction and recycle the
/// inputs for another purpose.
+ ///
+ /// This event is not guaranteed to be generated for channels that are closed due to a restart.
DiscardFunding {
/// The channel_id of the channel which has been closed.
- channel_id: [u8; 32],
+ channel_id: ChannelId,
/// The full transaction received from the user
transaction: Transaction
},
/// Indicates a request to open a new channel by a peer.
///
- /// To accept the request, call [`ChannelManager::accept_inbound_channel`]. To reject the
- /// request, call [`ChannelManager::force_close_without_broadcasting_txn`].
+ /// To accept the request, call [`ChannelManager::accept_inbound_channel`]. To reject the request,
+ /// call [`ChannelManager::force_close_without_broadcasting_txn`]. Note that a ['ChannelClosed`]
+ /// event will _not_ be triggered if the channel is rejected.
///
/// The event is only triggered when a new open channel request is received and the
/// [`UserConfig::manually_accept_inbound_channels`] config flag is set to true.
///
/// [`ChannelManager::accept_inbound_channel`]: crate::ln::channelmanager::ChannelManager::accept_inbound_channel
/// [`ChannelManager::force_close_without_broadcasting_txn`]: crate::ln::channelmanager::ChannelManager::force_close_without_broadcasting_txn
- temporary_channel_id: [u8; 32],
+ temporary_channel_id: ChannelId,
/// The node_id of the counterparty requesting to open the channel.
///
/// When responding to the request, the `counterparty_node_id` should be passed
/// requirements (i.e. insufficient fees paid, or a CLTV that is too soon).
HTLCHandlingFailed {
/// The channel over which the HTLC was received.
- prev_channel_id: [u8; 32],
+ prev_channel_id: ChannelId,
/// Destination of the HTLC that failed to be processed.
failed_next_destination: HTLCDestination,
},
- #[cfg(anchors)]
/// Indicates that a transaction originating from LDK needs to have its fee bumped. This event
/// requires confirmed external funds to be readily available to spend.
///
- /// LDK does not currently generate this event. It is limited to the scope of channels with
- /// anchor outputs, which will be introduced in a future release.
+ /// LDK does not currently generate this event unless the
+ /// [`ChannelHandshakeConfig::negotiate_anchors_zero_fee_htlc_tx`] config flag is set to true.
+ /// It is limited to the scope of channels with anchor outputs.
+ ///
+ /// [`ChannelHandshakeConfig::negotiate_anchors_zero_fee_htlc_tx`]: crate::util::config::ChannelHandshakeConfig::negotiate_anchors_zero_fee_htlc_tx
BumpTransaction(BumpTransactionEvent),
}
// We never write out FundingGenerationReady events as, upon disconnection, peers
// drop any channels which have not yet exchanged funding_signed.
},
- &Event::PaymentClaimable { ref payment_hash, ref amount_msat, ref purpose, ref receiver_node_id, ref via_channel_id, ref via_user_channel_id } => {
+ &Event::PaymentClaimable { ref payment_hash, ref amount_msat, counterparty_skimmed_fee_msat,
+ ref purpose, ref receiver_node_id, ref via_channel_id, ref via_user_channel_id,
+ ref claim_deadline, ref onion_fields
+ } => {
1u8.write(writer)?;
let mut payment_secret = None;
let payment_preimage;
payment_preimage = Some(*preimage);
}
}
+ let skimmed_fee_opt = if counterparty_skimmed_fee_msat == 0 { None }
+ else { Some(counterparty_skimmed_fee_msat) };
write_tlv_fields!(writer, {
(0, payment_hash, required),
(1, receiver_node_id, option),
(3, via_channel_id, option),
(4, amount_msat, required),
(5, via_user_channel_id, option),
- (6, 0u64, required), // user_payment_id required for compatibility with 0.0.103 and earlier
+ // Type 6 was `user_payment_id` on 0.0.103 and earlier
+ (7, claim_deadline, option),
(8, payment_preimage, option),
+ (9, onion_fields, option),
+ (10, skimmed_fee_opt, option),
});
},
&Event::PaymentSent { ref payment_id, ref payment_preimage, ref payment_hash, ref fee_paid_msat } => {
(1, None::<NetworkUpdate>, option), // network_update in LDK versions prior to 0.0.114
(2, payment_failed_permanently, required),
(3, false, required), // all_paths_failed in LDK versions prior to 0.0.114
- (5, *path, vec_type),
+ (4, path.blinded_tail, option),
+ (5, path.hops, required_vec),
(7, short_channel_id, option),
(9, None::<RouteParameters>, option), // retry in LDK versions prior to 0.0.115
(11, payment_id, option),
// Note that we now ignore these on the read end as we'll re-generate them in
// ChannelManager, we write them here only for backwards compatibility.
},
- &Event::SpendableOutputs { ref outputs } => {
+ &Event::SpendableOutputs { ref outputs, channel_id } => {
5u8.write(writer)?;
write_tlv_fields!(writer, {
(0, WithoutLength(outputs), required),
+ (1, channel_id, option),
});
},
&Event::HTLCIntercepted { requested_next_hop_scid, payment_hash, inbound_amount_msat, expected_outbound_amount_msat, intercept_id } => {
(5, outbound_amount_forwarded_msat, option),
});
},
- &Event::ChannelClosed { ref channel_id, ref user_channel_id, ref reason } => {
+ &Event::ChannelClosed { ref channel_id, ref user_channel_id, ref reason,
+ ref counterparty_node_id, ref channel_capacity_sats
+ } => {
9u8.write(writer)?;
// `user_channel_id` used to be a single u64 value. In order to remain backwards
// compatible with versions prior to 0.0.113, the u128 is serialized as two
(1, user_channel_id_low, required),
(2, reason, required),
(3, user_channel_id_high, required),
+ (5, counterparty_node_id, option),
+ (7, channel_capacity_sats, option),
});
},
&Event::DiscardFunding { ref channel_id, ref transaction } => {
write_tlv_fields!(writer, {
(0, payment_id, required),
(2, payment_hash, option),
- (4, *path, vec_type)
+ (4, path.hops, required_vec),
+ (6, path.blinded_tail, option),
})
},
- &Event::PaymentFailed { ref payment_id, ref payment_hash } => {
+ &Event::PaymentFailed { ref payment_id, ref payment_hash, ref reason } => {
15u8.write(writer)?;
write_tlv_fields!(writer, {
(0, payment_id, required),
+ (1, reason, option),
(2, payment_hash, required),
})
},
// We never write the OpenChannelRequest events as, upon disconnection, peers
// drop any channels which have not yet exchanged funding_signed.
},
- &Event::PaymentClaimed { ref payment_hash, ref amount_msat, ref purpose, ref receiver_node_id } => {
+ &Event::PaymentClaimed { ref payment_hash, ref amount_msat, ref purpose, ref receiver_node_id, ref htlcs, ref sender_intended_total_msat } => {
19u8.write(writer)?;
write_tlv_fields!(writer, {
(0, payment_hash, required),
(1, receiver_node_id, option),
(2, purpose, required),
(4, amount_msat, required),
+ (5, *htlcs, optional_vec),
+ (7, sender_intended_total_msat, option),
});
},
&Event::ProbeSuccessful { ref payment_id, ref payment_hash, ref path } => {
write_tlv_fields!(writer, {
(0, payment_id, required),
(2, payment_hash, required),
- (4, *path, vec_type)
+ (4, path.hops, required_vec),
+ (6, path.blinded_tail, option),
})
},
&Event::ProbeFailed { ref payment_id, ref payment_hash, ref path, ref short_channel_id } => {
write_tlv_fields!(writer, {
(0, payment_id, required),
(2, payment_hash, required),
- (4, *path, vec_type),
+ (4, path.hops, required_vec),
(6, short_channel_id, option),
+ (8, path.blinded_tail, option),
})
},
&Event::HTLCHandlingFailed { ref prev_channel_id, ref failed_next_destination } => {
(2, failed_next_destination, required),
})
},
- #[cfg(anchors)]
&Event::BumpTransaction(ref event)=> {
27u8.write(writer)?;
match event {
(8, funding_txo, required),
});
},
+ &Event::InvoiceRequestFailed { ref payment_id } => {
+ 33u8.write(writer)?;
+ write_tlv_fields!(writer, {
+ (0, payment_id, required),
+ })
+ },
// Note that, going forward, all new events must only write data inside of
// `write_tlv_fields`. Versions 0.0.101+ will ignore odd-numbered events that write
// data via `write_tlv_fields`.
let mut payment_preimage = None;
let mut payment_secret = None;
let mut amount_msat = 0;
+ let mut counterparty_skimmed_fee_msat_opt = None;
let mut receiver_node_id = None;
- let mut _user_payment_id = None::<u64>; // For compatibility with 0.0.103 and earlier
+ let mut _user_payment_id = None::<u64>; // Used in 0.0.103 and earlier, no longer written in 0.0.116+.
let mut via_channel_id = None;
+ let mut claim_deadline = None;
let mut via_user_channel_id = None;
+ let mut onion_fields = None;
read_tlv_fields!(reader, {
(0, payment_hash, required),
(1, receiver_node_id, option),
(4, amount_msat, required),
(5, via_user_channel_id, option),
(6, _user_payment_id, option),
+ (7, claim_deadline, option),
(8, payment_preimage, option),
+ (9, onion_fields, option),
+ (10, counterparty_skimmed_fee_msat_opt, option),
});
let purpose = match payment_secret {
Some(secret) => PaymentPurpose::InvoicePayment {
receiver_node_id,
payment_hash,
amount_msat,
+ counterparty_skimmed_fee_msat: counterparty_skimmed_fee_msat_opt.unwrap_or(0),
purpose,
via_channel_id,
via_user_channel_id,
+ claim_deadline,
+ onion_fields,
}))
};
f()
(5, fee_paid_msat, option),
});
if payment_hash.is_none() {
- payment_hash = Some(PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner()));
+ payment_hash = Some(PaymentHash(Sha256::hash(&payment_preimage.0[..]).to_byte_array()));
}
Ok(Some(Event::PaymentSent {
payment_id,
let mut payment_hash = PaymentHash([0; 32]);
let mut payment_failed_permanently = false;
let mut network_update = None;
+ let mut blinded_tail: Option<BlindedTail> = None;
let mut path: Option<Vec<RouteHop>> = Some(vec![]);
let mut short_channel_id = None;
let mut payment_id = None;
(0, payment_hash, required),
(1, network_update, upgradable_option),
(2, payment_failed_permanently, required),
- (5, path, vec_type),
+ (4, blinded_tail, option),
+ // Added as a part of LDK 0.0.101 and always filled in since.
+ // Defaults to an empty Vec, though likely should have been `Option`al.
+ (5, path, optional_vec),
(7, short_channel_id, option),
(11, payment_id, option),
(13, failure_opt, upgradable_option),
payment_hash,
payment_failed_permanently,
failure,
- path: path.unwrap(),
+ path: Path { hops: path.unwrap(), blinded_tail },
short_channel_id,
#[cfg(test)]
error_code,
5u8 => {
let f = || {
let mut outputs = WithoutLength(Vec::new());
+ let mut channel_id: Option<ChannelId> = None;
read_tlv_fields!(reader, {
(0, outputs, required),
+ (1, channel_id, option),
});
- Ok(Some(Event::SpendableOutputs { outputs: outputs.0 }))
+ Ok(Some(Event::SpendableOutputs { outputs: outputs.0, channel_id }))
};
f()
},
},
9u8 => {
let f = || {
- let mut channel_id = [0; 32];
+ let mut channel_id = ChannelId::new_zero();
let mut reason = UpgradableRequired(None);
let mut user_channel_id_low_opt: Option<u64> = None;
let mut user_channel_id_high_opt: Option<u64> = None;
+ let mut counterparty_node_id = None;
+ let mut channel_capacity_sats = None;
read_tlv_fields!(reader, {
(0, channel_id, required),
(1, user_channel_id_low_opt, option),
(2, reason, upgradable_required),
(3, user_channel_id_high_opt, option),
+ (5, counterparty_node_id, option),
+ (7, channel_capacity_sats, option),
});
// `user_channel_id` used to be a single u64 value. In order to remain
let user_channel_id = (user_channel_id_low_opt.unwrap_or(0) as u128) +
((user_channel_id_high_opt.unwrap_or(0) as u128) << 64);
- Ok(Some(Event::ChannelClosed { channel_id, user_channel_id, reason: _init_tlv_based_struct_field!(reason, upgradable_required) }))
+ Ok(Some(Event::ChannelClosed { channel_id, user_channel_id, reason: _init_tlv_based_struct_field!(reason, upgradable_required),
+ counterparty_node_id, channel_capacity_sats }))
};
f()
},
11u8 => {
let f = || {
- let mut channel_id = [0; 32];
- let mut transaction = Transaction{ version: 2, lock_time: PackedLockTime::ZERO, input: Vec::new(), output: Vec::new() };
+ let mut channel_id = ChannelId::new_zero();
+ let mut transaction = Transaction{ version: 2, lock_time: LockTime::ZERO, input: Vec::new(), output: Vec::new() };
read_tlv_fields!(reader, {
(0, channel_id, required),
(2, transaction, required),
},
13u8 => {
let f = || {
- let mut payment_id = PaymentId([0; 32]);
- let mut payment_hash = None;
- let mut path: Option<Vec<RouteHop>> = Some(vec![]);
- read_tlv_fields!(reader, {
+ _init_and_read_len_prefixed_tlv_fields!(reader, {
(0, payment_id, required),
(2, payment_hash, option),
- (4, path, vec_type),
+ (4, path, required_vec),
+ (6, blinded_tail, option),
});
Ok(Some(Event::PaymentPathSuccessful {
- payment_id,
+ payment_id: payment_id.0.unwrap(),
payment_hash,
- path: path.unwrap(),
+ path: Path { hops: path, blinded_tail },
}))
};
f()
let f = || {
let mut payment_hash = PaymentHash([0; 32]);
let mut payment_id = PaymentId([0; 32]);
+ let mut reason = None;
read_tlv_fields!(reader, {
(0, payment_id, required),
+ (1, reason, upgradable_option),
(2, payment_hash, required),
});
Ok(Some(Event::PaymentFailed {
payment_id,
payment_hash,
+ reason,
}))
};
f()
let mut purpose = UpgradableRequired(None);
let mut amount_msat = 0;
let mut receiver_node_id = None;
+ let mut htlcs: Option<Vec<ClaimedHTLC>> = Some(vec![]);
+ let mut sender_intended_total_msat: Option<u64> = None;
read_tlv_fields!(reader, {
(0, payment_hash, required),
(1, receiver_node_id, option),
(2, purpose, upgradable_required),
(4, amount_msat, required),
+ (5, htlcs, optional_vec),
+ (7, sender_intended_total_msat, option),
});
Ok(Some(Event::PaymentClaimed {
receiver_node_id,
payment_hash,
purpose: _init_tlv_based_struct_field!(purpose, upgradable_required),
amount_msat,
+ htlcs: htlcs.unwrap_or(vec![]),
+ sender_intended_total_msat,
}))
};
f()
},
21u8 => {
let f = || {
- let mut payment_id = PaymentId([0; 32]);
- let mut payment_hash = PaymentHash([0; 32]);
- let mut path: Option<Vec<RouteHop>> = Some(vec![]);
- read_tlv_fields!(reader, {
+ _init_and_read_len_prefixed_tlv_fields!(reader, {
(0, payment_id, required),
(2, payment_hash, required),
- (4, path, vec_type),
+ (4, path, required_vec),
+ (6, blinded_tail, option),
});
Ok(Some(Event::ProbeSuccessful {
- payment_id,
- payment_hash,
- path: path.unwrap(),
+ payment_id: payment_id.0.unwrap(),
+ payment_hash: payment_hash.0.unwrap(),
+ path: Path { hops: path, blinded_tail },
}))
};
f()
},
23u8 => {
let f = || {
- let mut payment_id = PaymentId([0; 32]);
- let mut payment_hash = PaymentHash([0; 32]);
- let mut path: Option<Vec<RouteHop>> = Some(vec![]);
- let mut short_channel_id = None;
- read_tlv_fields!(reader, {
+ _init_and_read_len_prefixed_tlv_fields!(reader, {
(0, payment_id, required),
(2, payment_hash, required),
- (4, path, vec_type),
+ (4, path, required_vec),
(6, short_channel_id, option),
+ (8, blinded_tail, option),
});
Ok(Some(Event::ProbeFailed {
- payment_id,
- payment_hash,
- path: path.unwrap(),
+ payment_id: payment_id.0.unwrap(),
+ payment_hash: payment_hash.0.unwrap(),
+ path: Path { hops: path, blinded_tail },
short_channel_id,
}))
};
},
25u8 => {
let f = || {
- let mut prev_channel_id = [0; 32];
+ let mut prev_channel_id = ChannelId::new_zero();
let mut failed_next_destination_opt = UpgradableRequired(None);
read_tlv_fields!(reader, {
(0, prev_channel_id, required),
27u8 => Ok(None),
29u8 => {
let f = || {
- let mut channel_id = [0; 32];
+ let mut channel_id = ChannelId::new_zero();
let mut user_channel_id: u128 = 0;
let mut counterparty_node_id = RequiredWrapper(None);
let mut channel_type = RequiredWrapper(None);
},
31u8 => {
let f = || {
- let mut channel_id = [0; 32];
+ let mut channel_id = ChannelId::new_zero();
let mut user_channel_id: u128 = 0;
let mut former_temporary_channel_id = None;
let mut counterparty_node_id = RequiredWrapper(None);
};
f()
},
+ 33u8 => {
+ let f = || {
+ _init_and_read_len_prefixed_tlv_fields!(reader, {
+ (0, payment_id, required),
+ });
+ Ok(Some(Event::InvoiceRequestFailed {
+ payment_id: payment_id.0.unwrap(),
+ }))
+ };
+ f()
+ },
// Versions prior to 0.0.100 did not ignore odd types, instead returning InvalidValue.
// Version 0.0.100 failed to properly ignore odd types, possibly resulting in corrupt
// reads.
/// broadcast to most peers).
/// These events are handled by PeerManager::process_events if you are using a PeerManager.
#[derive(Clone, Debug)]
+#[cfg_attr(test, derive(PartialEq))]
pub enum MessageSendEvent {
/// Used to indicate that we've accepted a channel open and should send the accept_channel
/// message provided to the given peer.
/// The message which should be sent.
msg: msgs::AcceptChannel,
},
+ /// Used to indicate that we've accepted a V2 channel open and should send the accept_channel2
+ /// message provided to the given peer.
+ SendAcceptChannelV2 {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::AcceptChannelV2,
+ },
/// Used to indicate that we've initiated a channel open and should send the open_channel
/// message provided to the given peer.
SendOpenChannel {
/// The message which should be sent.
msg: msgs::OpenChannel,
},
+ /// Used to indicate that we've initiated a V2 channel open and should send the open_channel2
+ /// message provided to the given peer.
+ SendOpenChannelV2 {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::OpenChannelV2,
+ },
/// Used to indicate that a funding_created message should be sent to the peer with the given node_id.
SendFundingCreated {
/// The node_id of the node which should receive this message
/// The message which should be sent.
msg: msgs::FundingSigned,
},
+ /// Used to indicate that a stfu message should be sent to the peer with the given node id.
+ SendStfu {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::Stfu,
+ },
+ /// Used to indicate that a splice message should be sent to the peer with the given node id.
+ SendSplice {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::Splice,
+ },
+ /// Used to indicate that a splice_ack message should be sent to the peer with the given node id.
+ SendSpliceAck {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::SpliceAck,
+ },
+ /// Used to indicate that a splice_locked message should be sent to the peer with the given node id.
+ SendSpliceLocked {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::SpliceLocked,
+ },
+ /// Used to indicate that a tx_add_input message should be sent to the peer with the given node_id.
+ SendTxAddInput {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxAddInput,
+ },
+ /// Used to indicate that a tx_add_output message should be sent to the peer with the given node_id.
+ SendTxAddOutput {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxAddOutput,
+ },
+ /// Used to indicate that a tx_remove_input message should be sent to the peer with the given node_id.
+ SendTxRemoveInput {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxRemoveInput,
+ },
+ /// Used to indicate that a tx_remove_output message should be sent to the peer with the given node_id.
+ SendTxRemoveOutput {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxRemoveOutput,
+ },
+ /// Used to indicate that a tx_complete message should be sent to the peer with the given node_id.
+ SendTxComplete {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxComplete,
+ },
+ /// Used to indicate that a tx_signatures message should be sent to the peer with the given node_id.
+ SendTxSignatures {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxSignatures,
+ },
+ /// Used to indicate that a tx_init_rbf message should be sent to the peer with the given node_id.
+ SendTxInitRbf {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxInitRbf,
+ },
+ /// Used to indicate that a tx_ack_rbf message should be sent to the peer with the given node_id.
+ SendTxAckRbf {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxAckRbf,
+ },
+ /// Used to indicate that a tx_abort message should be sent to the peer with the given node_id.
+ SendTxAbort {
+ /// The node_id of the node which should receive this message
+ node_id: PublicKey,
+ /// The message which should be sent.
+ msg: msgs::TxAbort,
+ },
/// Used to indicate that a channel_ready message should be sent to the peer with the given node_id.
SendChannelReady {
/// The node_id of the node which should receive these message(s)
fn get_and_clear_pending_msg_events(&self) -> Vec<MessageSendEvent>;
}
-/// A trait indicating an object may generate onion messages to send
-pub trait OnionMessageProvider {
- /// Gets the next pending onion message for the peer with the given node id.
- fn next_onion_message_for_peer(&self, peer_node_id: PublicKey) -> Option<msgs::OnionMessage>;
-}
-
/// A trait indicating an object may generate events.
///
/// Events are processed by passing an [`EventHandler`] to [`process_pending_events`].