/// Used to return a simple Error back to ChannelManager. Will get converted to a
/// msgs::ErrorAction::SendErrorMessage or msgs::ErrorAction::IgnoreError as appropriate with our
/// channel_id in ChannelManager.
-pub(super) enum ChannelError<ChanSigner: ChannelKeys> {
+pub(super) enum ChannelError {
Ignore(&'static str),
Close(&'static str),
CloseDelayBroadcast {
msg: &'static str,
- update: Option<ChannelMonitor<ChanSigner>>,
+ update: ChannelMonitorUpdate,
},
}
-impl<ChanSigner: ChannelKeys> fmt::Debug for ChannelError<ChanSigner> {
+impl fmt::Debug for ChannelError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
match self {
&ChannelError::Ignore(e) => write!(f, "Ignore : {}", e),
})
}
- fn check_remote_fee(fee_estimator: &FeeEstimator, feerate_per_kw: u32) -> Result<(), ChannelError<ChanSigner>> {
+ fn check_remote_fee(fee_estimator: &FeeEstimator, feerate_per_kw: u32) -> Result<(), ChannelError> {
if (feerate_per_kw as u64) < fee_estimator.get_est_sat_per_1000_weight(ConfirmationTarget::Background) {
return Err(ChannelError::Close("Peer's feerate much too low"));
}
/// Creates a new channel from a remote sides' request for one.
/// Assumes chain_hash has already been checked and corresponds with what we expect!
- pub fn new_from_req(fee_estimator: &FeeEstimator, keys_provider: &Arc<KeysInterface<ChanKeySigner = ChanSigner>>, their_node_id: PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel, user_id: u64, logger: Arc<Logger>, config: &UserConfig) -> Result<Channel<ChanSigner>, ChannelError<ChanSigner>> {
+ pub fn new_from_req(fee_estimator: &FeeEstimator, keys_provider: &Arc<KeysInterface<ChanKeySigner = ChanSigner>>, their_node_id: PublicKey, their_features: InitFeatures, msg: &msgs::OpenChannel, user_id: u64, logger: Arc<Logger>, config: &UserConfig) -> Result<Channel<ChanSigner>, ChannelError> {
let mut chan_keys = keys_provider.get_channel_keys(true, msg.funding_satoshis);
let their_pubkeys = ChannelPublicKeys {
funding_pubkey: msg.funding_pubkey,
/// our counterparty!)
/// The result is a transaction which we can revoke ownership of (ie a "local" transaction)
/// TODO Some magic rust shit to compile-time check this?
- fn build_local_transaction_keys(&self, commitment_number: u64) -> Result<TxCreationKeys, ChannelError<ChanSigner>> {
+ fn build_local_transaction_keys(&self, commitment_number: u64) -> Result<TxCreationKeys, ChannelError> {
let per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &self.build_local_commitment_secret(commitment_number));
let delayed_payment_base = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.delayed_payment_base_key());
let htlc_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.htlc_base_key());
/// Creates a set of keys for build_commitment_transaction to generate a transaction which we
/// will sign and send to our counterparty.
/// If an Err is returned, it is a ChannelError::Close (for get_outbound_funding_created)
- fn build_remote_transaction_keys(&self) -> Result<TxCreationKeys, ChannelError<ChanSigner>> {
+ fn build_remote_transaction_keys(&self) -> Result<TxCreationKeys, ChannelError> {
//TODO: Ensure that the payment_key derived here ends up in the library users' wallet as we
//may see payments to it!
let payment_basepoint = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.payment_base_key());
/// Per HTLC, only one get_update_fail_htlc or get_update_fulfill_htlc call may be made.
/// In such cases we debug_assert!(false) and return an IgnoreError. Thus, will always return
/// Ok(_) if debug assertions are turned on and preconditions are met.
- fn get_update_fulfill_htlc(&mut self, htlc_id_arg: u64, payment_preimage_arg: PaymentPreimage) -> Result<(Option<msgs::UpdateFulfillHTLC>, Option<ChannelMonitorUpdate>), ChannelError<ChanSigner>> {
+ fn get_update_fulfill_htlc(&mut self, htlc_id_arg: u64, payment_preimage_arg: PaymentPreimage) -> Result<(Option<msgs::UpdateFulfillHTLC>, Option<ChannelMonitorUpdate>), ChannelError> {
// Either ChannelFunded got set (which means it won't be unset) or there is no way any
// caller thought we could have something claimed (cause we wouldn't have accepted in an
// incoming HTLC anyway). If we got to ShutdownComplete, callers aren't allowed to call us,
}), Some(monitor_update)))
}
- pub fn get_update_fulfill_htlc_and_commit(&mut self, htlc_id: u64, payment_preimage: PaymentPreimage) -> Result<(Option<(msgs::UpdateFulfillHTLC, msgs::CommitmentSigned)>, Option<ChannelMonitorUpdate>), ChannelError<ChanSigner>> {
+ pub fn get_update_fulfill_htlc_and_commit(&mut self, htlc_id: u64, payment_preimage: PaymentPreimage) -> Result<(Option<(msgs::UpdateFulfillHTLC, msgs::CommitmentSigned)>, Option<ChannelMonitorUpdate>), ChannelError> {
match self.get_update_fulfill_htlc(htlc_id, payment_preimage)? {
(Some(update_fulfill_htlc), Some(mut monitor_update)) => {
let (commitment, mut additional_update) = self.send_commitment_no_status_check()?;
/// Per HTLC, only one get_update_fail_htlc or get_update_fulfill_htlc call may be made.
/// In such cases we debug_assert!(false) and return an IgnoreError. Thus, will always return
/// Ok(_) if debug assertions are turned on and preconditions are met.
- pub fn get_update_fail_htlc(&mut self, htlc_id_arg: u64, err_packet: msgs::OnionErrorPacket) -> Result<Option<msgs::UpdateFailHTLC>, ChannelError<ChanSigner>> {
+ pub fn get_update_fail_htlc(&mut self, htlc_id_arg: u64, err_packet: msgs::OnionErrorPacket) -> Result<Option<msgs::UpdateFailHTLC>, ChannelError> {
if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
panic!("Was asked to fail an HTLC when channel was not in an operational state");
}
// Message handlers:
- pub fn accept_channel(&mut self, msg: &msgs::AcceptChannel, config: &UserConfig, their_features: InitFeatures) -> Result<(), ChannelError<ChanSigner>> {
+ pub fn accept_channel(&mut self, msg: &msgs::AcceptChannel, config: &UserConfig, their_features: InitFeatures) -> Result<(), ChannelError> {
// Check sanity of message fields:
if !self.channel_outbound {
return Err(ChannelError::Close("Got an accept_channel message from an inbound peer"));
Ok(())
}
- fn funding_created_signature(&mut self, sig: &Signature) -> Result<(Transaction, LocalCommitmentTransaction, Signature, TxCreationKeys), ChannelError<ChanSigner>> {
+ fn funding_created_signature(&mut self, sig: &Signature) -> Result<(Transaction, LocalCommitmentTransaction, Signature, TxCreationKeys), ChannelError> {
let funding_script = self.get_funding_redeemscript();
let local_keys = self.build_local_transaction_keys(self.cur_local_commitment_transaction_number)?;
&self.their_pubkeys.as_ref().expect("their_funding_pubkey() only allowed after accept_channel").funding_pubkey
}
- pub fn funding_created(&mut self, msg: &msgs::FundingCreated) -> Result<(msgs::FundingSigned, ChannelMonitor<ChanSigner>), ChannelError<ChanSigner>> {
+ pub fn funding_created(&mut self, msg: &msgs::FundingCreated) -> Result<(msgs::FundingSigned, ChannelMonitor<ChanSigner>), ChannelError> {
if self.channel_outbound {
return Err(ChannelError::Close("Received funding_created for an outbound channel?"));
}
/// Handles a funding_signed message from the remote end.
/// If this call is successful, broadcast the funding transaction (and not before!)
- pub fn funding_signed(&mut self, msg: &msgs::FundingSigned) -> Result<ChannelMonitorUpdate, (Option<ChannelMonitorUpdate>, ChannelError<ChanSigner>)> {
+ pub fn funding_signed(&mut self, msg: &msgs::FundingSigned) -> Result<ChannelMonitorUpdate, (Option<ChannelMonitorUpdate>, ChannelError)> {
if !self.channel_outbound {
return Err((None, ChannelError::Close("Received funding_signed for an inbound channel?")));
}
}
}
- pub fn funding_locked(&mut self, msg: &msgs::FundingLocked) -> Result<(), ChannelError<ChanSigner>> {
+ pub fn funding_locked(&mut self, msg: &msgs::FundingLocked) -> Result<(), ChannelError> {
if self.channel_state & (ChannelState::PeerDisconnected as u32) == ChannelState::PeerDisconnected as u32 {
return Err(ChannelError::Close("Peer sent funding_locked when we needed a channel_reestablish"));
}
cmp::min(self.value_to_self_msat as i64 - self.get_outbound_pending_htlc_stats().1 as i64, 0) as u64)
}
- pub fn update_add_htlc(&mut self, msg: &msgs::UpdateAddHTLC, pending_forward_state: PendingHTLCStatus) -> Result<(), ChannelError<ChanSigner>> {
+ pub fn update_add_htlc(&mut self, msg: &msgs::UpdateAddHTLC, pending_forward_state: PendingHTLCStatus) -> Result<(), ChannelError> {
if (self.channel_state & (ChannelState::ChannelFunded as u32 | ChannelState::RemoteShutdownSent as u32)) != (ChannelState::ChannelFunded as u32) {
return Err(ChannelError::Close("Got add HTLC message when channel was not in an operational state"));
}
/// Marks an outbound HTLC which we have received update_fail/fulfill/malformed
#[inline]
- fn mark_outbound_htlc_removed(&mut self, htlc_id: u64, check_preimage: Option<PaymentHash>, fail_reason: Option<HTLCFailReason>) -> Result<&HTLCSource, ChannelError<ChanSigner>> {
+ fn mark_outbound_htlc_removed(&mut self, htlc_id: u64, check_preimage: Option<PaymentHash>, fail_reason: Option<HTLCFailReason>) -> Result<&HTLCSource, ChannelError> {
for htlc in self.pending_outbound_htlcs.iter_mut() {
if htlc.htlc_id == htlc_id {
match check_preimage {
Err(ChannelError::Close("Remote tried to fulfill/fail an HTLC we couldn't find"))
}
- pub fn update_fulfill_htlc(&mut self, msg: &msgs::UpdateFulfillHTLC) -> Result<HTLCSource, ChannelError<ChanSigner>> {
+ pub fn update_fulfill_htlc(&mut self, msg: &msgs::UpdateFulfillHTLC) -> Result<HTLCSource, ChannelError> {
if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
return Err(ChannelError::Close("Got fulfill HTLC message when channel was not in an operational state"));
}
self.mark_outbound_htlc_removed(msg.htlc_id, Some(payment_hash), None).map(|source| source.clone())
}
- pub fn update_fail_htlc(&mut self, msg: &msgs::UpdateFailHTLC, fail_reason: HTLCFailReason) -> Result<(), ChannelError<ChanSigner>> {
+ pub fn update_fail_htlc(&mut self, msg: &msgs::UpdateFailHTLC, fail_reason: HTLCFailReason) -> Result<(), ChannelError> {
if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
return Err(ChannelError::Close("Got fail HTLC message when channel was not in an operational state"));
}
Ok(())
}
- pub fn update_fail_malformed_htlc<'a>(&mut self, msg: &msgs::UpdateFailMalformedHTLC, fail_reason: HTLCFailReason) -> Result<(), ChannelError<ChanSigner>> {
+ pub fn update_fail_malformed_htlc<'a>(&mut self, msg: &msgs::UpdateFailMalformedHTLC, fail_reason: HTLCFailReason) -> Result<(), ChannelError> {
if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
return Err(ChannelError::Close("Got fail malformed HTLC message when channel was not in an operational state"));
}
Ok(())
}
- pub fn commitment_signed(&mut self, msg: &msgs::CommitmentSigned, fee_estimator: &FeeEstimator) -> Result<(msgs::RevokeAndACK, Option<msgs::CommitmentSigned>, Option<msgs::ClosingSigned>, ChannelMonitorUpdate), (Option<ChannelMonitorUpdate>, ChannelError<ChanSigner>)> {
+ pub fn commitment_signed(&mut self, msg: &msgs::CommitmentSigned, fee_estimator: &FeeEstimator) -> Result<(msgs::RevokeAndACK, Option<msgs::CommitmentSigned>, Option<msgs::ClosingSigned>, ChannelMonitorUpdate), (Option<ChannelMonitorUpdate>, ChannelError)> {
if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
return Err((None, ChannelError::Close("Got commitment signed message when channel was not in an operational state")));
}
/// Used to fulfill holding_cell_htlcs when we get a remote ack (or implicitly get it by them
/// fulfilling or failing the last pending HTLC)
- fn free_holding_cell_htlcs(&mut self) -> Result<Option<(msgs::CommitmentUpdate, ChannelMonitorUpdate)>, ChannelError<ChanSigner>> {
+ fn free_holding_cell_htlcs(&mut self) -> Result<Option<(msgs::CommitmentUpdate, ChannelMonitorUpdate)>, ChannelError> {
assert_eq!(self.channel_state & ChannelState::MonitorUpdateFailed as u32, 0);
if self.holding_cell_htlc_updates.len() != 0 || self.holding_cell_update_fee.is_some() {
log_trace!(self, "Freeing holding cell with {} HTLC updates{}", self.holding_cell_htlc_updates.len(), if self.holding_cell_update_fee.is_some() { " and a fee update" } else { "" });
/// waiting on this revoke_and_ack. The generation of this new commitment_signed may also fail,
/// generating an appropriate error *after* the channel state has been updated based on the
/// revoke_and_ack message.
- pub fn revoke_and_ack(&mut self, msg: &msgs::RevokeAndACK, fee_estimator: &FeeEstimator) -> Result<(Option<msgs::CommitmentUpdate>, Vec<(PendingHTLCInfo, u64)>, Vec<(HTLCSource, PaymentHash, HTLCFailReason)>, Option<msgs::ClosingSigned>, ChannelMonitorUpdate), ChannelError<ChanSigner>> {
+ pub fn revoke_and_ack(&mut self, msg: &msgs::RevokeAndACK, fee_estimator: &FeeEstimator) -> Result<(Option<msgs::CommitmentUpdate>, Vec<(PendingHTLCInfo, u64)>, Vec<(HTLCSource, PaymentHash, HTLCFailReason)>, Option<msgs::ClosingSigned>, ChannelMonitorUpdate), ChannelError> {
if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
return Err(ChannelError::Close("Got revoke/ACK message when channel was not in an operational state"));
}
})
}
- pub fn send_update_fee_and_commit(&mut self, feerate_per_kw: u64) -> Result<Option<(msgs::UpdateFee, msgs::CommitmentSigned, ChannelMonitorUpdate)>, ChannelError<ChanSigner>> {
+ pub fn send_update_fee_and_commit(&mut self, feerate_per_kw: u64) -> Result<Option<(msgs::UpdateFee, msgs::CommitmentSigned, ChannelMonitorUpdate)>, ChannelError> {
match self.send_update_fee(feerate_per_kw) {
Some(update_fee) => {
let (commitment_signed, monitor_update) = self.send_commitment_no_status_check()?;
(raa, commitment_update, order, forwards, failures, needs_broadcast_safe, funding_locked)
}
- pub fn update_fee(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::UpdateFee) -> Result<(), ChannelError<ChanSigner>> {
+ pub fn update_fee(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::UpdateFee) -> Result<(), ChannelError> {
if self.channel_outbound {
return Err(ChannelError::Close("Non-funding remote tried to update channel fee"));
}
/// May panic if some calls other than message-handling calls (which will all Err immediately)
/// have been called between remove_uncommitted_htlcs_and_mark_paused and this call.
- pub fn channel_reestablish(&mut self, msg: &msgs::ChannelReestablish) -> Result<(Option<msgs::FundingLocked>, Option<msgs::RevokeAndACK>, Option<msgs::CommitmentUpdate>, Option<ChannelMonitorUpdate>, RAACommitmentOrder, Option<msgs::Shutdown>), ChannelError<ChanSigner>> {
+ pub fn channel_reestablish(&mut self, msg: &msgs::ChannelReestablish) -> Result<(Option<msgs::FundingLocked>, Option<msgs::RevokeAndACK>, Option<msgs::CommitmentUpdate>, Option<ChannelMonitorUpdate>, RAACommitmentOrder, Option<msgs::Shutdown>), ChannelError> {
if self.channel_state & (ChannelState::PeerDisconnected as u32) == 0 {
// While BOLT 2 doesn't indicate explicitly we should error this channel here, it
// almost certainly indicates we are going to end up out-of-sync in some way, so we
return Err(ChannelError::Close("Peer sent a garbage channel_reestablish with secret key not matching the commitment height provided"));
}
if msg.next_remote_commitment_number > INITIAL_COMMITMENT_NUMBER - self.cur_local_commitment_transaction_number {
- self.channel_monitor.provide_rescue_remote_commitment_tx_info(data_loss.my_current_per_commitment_point);
- return Err(ChannelError::CloseDelayBroadcast { msg: "We have fallen behind - we have received proof that if we broadcast remote is going to claim our funds - we can't do any automated broadcasting", update: Some(self.channel_monitor.clone())});
+ self.latest_monitor_update_id += 1;
+ let monitor_update = ChannelMonitorUpdate {
+ update_id: self.latest_monitor_update_id,
+ updates: vec![ChannelMonitorUpdateStep::RescueRemoteCommitmentTXInfo {
+ their_current_per_commitment_point: data_loss.my_current_per_commitment_point
+ }]
+ };
+ self.channel_monitor.update_monitor_ooo(monitor_update.clone()).unwrap();
+ return Err(ChannelError::CloseDelayBroadcast {
+ msg: "We have fallen behind - we have received proof that if we broadcast remote is going to claim our funds - we can't do any automated broadcasting",
+ update: monitor_update
+ });
}
},
OptionalField::Absent => {}
})
}
- pub fn shutdown(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::Shutdown) -> Result<(Option<msgs::Shutdown>, Option<msgs::ClosingSigned>, Vec<(HTLCSource, PaymentHash)>), ChannelError<ChanSigner>> {
+ pub fn shutdown(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::Shutdown) -> Result<(Option<msgs::Shutdown>, Option<msgs::ClosingSigned>, Vec<(HTLCSource, PaymentHash)>), ChannelError> {
if self.channel_state & (ChannelState::PeerDisconnected as u32) == ChannelState::PeerDisconnected as u32 {
return Err(ChannelError::Close("Peer sent shutdown when we needed a channel_reestablish"));
}
tx.input[0].witness.push(self.get_funding_redeemscript().into_bytes());
}
- pub fn closing_signed(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::ClosingSigned) -> Result<(Option<msgs::ClosingSigned>, Option<Transaction>), ChannelError<ChanSigner>> {
+ pub fn closing_signed(&mut self, fee_estimator: &FeeEstimator, msg: &msgs::ClosingSigned) -> Result<(Option<msgs::ClosingSigned>, Option<Transaction>), ChannelError> {
if self.channel_state & BOTH_SIDES_SHUTDOWN_MASK != BOTH_SIDES_SHUTDOWN_MASK {
return Err(ChannelError::Close("Remote end sent us a closing_signed before both sides provided a shutdown"));
}
}
/// If an Err is returned, it is a ChannelError::Close (for get_outbound_funding_created)
- fn get_outbound_funding_created_signature(&mut self) -> Result<(Signature, Transaction), ChannelError<ChanSigner>> {
+ fn get_outbound_funding_created_signature(&mut self) -> Result<(Signature, Transaction), ChannelError> {
let remote_keys = self.build_remote_transaction_keys()?;
let remote_initial_commitment_tx = self.build_commitment_transaction(self.cur_remote_commitment_transaction_number, &remote_keys, false, false, self.feerate_per_kw).0;
Ok((self.local_keys.sign_remote_commitment(self.feerate_per_kw, &remote_initial_commitment_tx, &remote_keys, &Vec::new(), self.our_to_self_delay, &self.secp_ctx)
/// Note that channel_id changes during this call!
/// Do NOT broadcast the funding transaction until after a successful funding_signed call!
/// If an Err is returned, it is a ChannelError::Close.
- pub fn get_outbound_funding_created(&mut self, funding_txo: OutPoint) -> Result<(msgs::FundingCreated, ChannelMonitor<ChanSigner>), ChannelError<ChanSigner>> {
+ pub fn get_outbound_funding_created(&mut self, funding_txo: OutPoint) -> Result<(msgs::FundingCreated, ChannelMonitor<ChanSigner>), ChannelError> {
if !self.channel_outbound {
panic!("Tried to create outbound funding_created message on an inbound channel!");
}
/// closing).
/// Note that the "channel must be funded" requirement is stricter than BOLT 7 requires - see
/// https://github.com/lightningnetwork/lightning-rfc/issues/468
- pub fn get_channel_announcement(&self, our_node_id: PublicKey, chain_hash: Sha256dHash) -> Result<(msgs::UnsignedChannelAnnouncement, Signature), ChannelError<ChanSigner>> {
+ pub fn get_channel_announcement(&self, our_node_id: PublicKey, chain_hash: Sha256dHash) -> Result<(msgs::UnsignedChannelAnnouncement, Signature), ChannelError> {
if !self.config.announced_channel {
return Err(ChannelError::Ignore("Channel is not available for public announcements"));
}
/// HTLCs on the wire or we wouldn't be able to determine what they actually ACK'ed.
/// You MUST call send_commitment prior to any other calls on this Channel
/// If an Err is returned, it's a ChannelError::Ignore!
- pub fn send_htlc(&mut self, amount_msat: u64, payment_hash: PaymentHash, cltv_expiry: u32, source: HTLCSource, onion_routing_packet: msgs::OnionPacket) -> Result<Option<msgs::UpdateAddHTLC>, ChannelError<ChanSigner>> {
+ pub fn send_htlc(&mut self, amount_msat: u64, payment_hash: PaymentHash, cltv_expiry: u32, source: HTLCSource, onion_routing_packet: msgs::OnionPacket) -> Result<Option<msgs::UpdateAddHTLC>, ChannelError> {
if (self.channel_state & (ChannelState::ChannelFunded as u32 | BOTH_SIDES_SHUTDOWN_MASK)) != (ChannelState::ChannelFunded as u32) {
return Err(ChannelError::Ignore("Cannot send HTLC until channel is fully established and we haven't started shutting down"));
}
/// Always returns a ChannelError::Close if an immediately-preceding (read: the
/// last call to this Channel) send_htlc returned Ok(Some(_)) and there is an Err.
/// May panic if called except immediately after a successful, Ok(Some(_))-returning send_htlc.
- pub fn send_commitment(&mut self) -> Result<(msgs::CommitmentSigned, ChannelMonitorUpdate), ChannelError<ChanSigner>> {
+ pub fn send_commitment(&mut self) -> Result<(msgs::CommitmentSigned, ChannelMonitorUpdate), ChannelError> {
if (self.channel_state & (ChannelState::ChannelFunded as u32)) != (ChannelState::ChannelFunded as u32) {
panic!("Cannot create commitment tx until channel is fully established");
}
self.send_commitment_no_status_check()
}
/// Only fails in case of bad keys
- fn send_commitment_no_status_check(&mut self) -> Result<(msgs::CommitmentSigned, ChannelMonitorUpdate), ChannelError<ChanSigner>> {
+ fn send_commitment_no_status_check(&mut self) -> Result<(msgs::CommitmentSigned, ChannelMonitorUpdate), ChannelError> {
// We can upgrade the status of some HTLCs that are waiting on a commitment, even if we
// fail to generate this, we still are at least at a position where upgrading their status
// is acceptable.
/// Only fails in case of bad keys. Used for channel_reestablish commitment_signed generation
/// when we shouldn't change HTLC/channel state.
- fn send_commitment_no_state_update(&self) -> Result<(msgs::CommitmentSigned, (Transaction, Vec<(HTLCOutputInCommitment, Option<&HTLCSource>)>)), ChannelError<ChanSigner>> {
+ fn send_commitment_no_state_update(&self) -> Result<(msgs::CommitmentSigned, (Transaction, Vec<(HTLCOutputInCommitment, Option<&HTLCSource>)>)), ChannelError> {
let mut feerate_per_kw = self.feerate_per_kw;
if let Some(feerate) = self.pending_update_fee {
if self.channel_outbound {
/// to send to the remote peer in one go.
/// Shorthand for calling send_htlc() followed by send_commitment(), see docs on those for
/// more info.
- pub fn send_htlc_and_commit(&mut self, amount_msat: u64, payment_hash: PaymentHash, cltv_expiry: u32, source: HTLCSource, onion_routing_packet: msgs::OnionPacket) -> Result<Option<(msgs::UpdateAddHTLC, msgs::CommitmentSigned, ChannelMonitorUpdate)>, ChannelError<ChanSigner>> {
+ pub fn send_htlc_and_commit(&mut self, amount_msat: u64, payment_hash: PaymentHash, cltv_expiry: u32, source: HTLCSource, onion_routing_packet: msgs::OnionPacket) -> Result<Option<(msgs::UpdateAddHTLC, msgs::CommitmentSigned, ChannelMonitorUpdate)>, ChannelError> {
match self.send_htlc(amount_msat, payment_hash, cltv_expiry, source, onion_routing_packet)? {
Some(update_add_htlc) => {
let (commitment_signed, monitor_update) = self.send_commitment_no_status_check()?;
projects / rust-lightning / commitdiff