use crate::chain::chaininterface::{ConfirmationTarget, FeeEstimator, BroadcasterInterface, LowerBoundedFeeEstimator};
use crate::chain::channelmonitor::{ANTI_REORG_DELAY, CLTV_SHARED_CLAIM_BUFFER};
use crate::chain::package::{PackageSolvingData, PackageTemplate};
+use crate::chain::transaction::MaybeSignedTransaction;
use crate::util::logger::Logger;
use crate::util::ser::{Readable, ReadableArgs, MaybeReadable, UpgradableRequired, Writer, Writeable, VecWriter};
/// control) onchain.
pub(crate) enum OnchainClaim {
/// A finalized transaction pending confirmation spending the output to claim.
- Tx(Transaction),
+ Tx(MaybeSignedTransaction),
/// An event yielded externally to signal additional inputs must be added to a transaction
/// pending confirmation spending the output to claim.
Event(ClaimEvent),
}
-/// Represents the different feerates a pending request can use when generating a claim.
+/// Represents the different feerate strategies a pending request can use when generating a claim.
pub(crate) enum FeerateStrategy {
+ /// We must reuse the most recently used feerate, if any.
+ RetryPrevious,
/// We must pick the highest between the most recently used and the current feerate estimate.
HighestOfPreviousOrNew,
/// We must force a bump of the most recently used feerate, either by using the current feerate
}
match claim {
OnchainClaim::Tx(tx) => {
- let log_start = if bumped_feerate { "Broadcasting RBF-bumped" } else { "Rebroadcasting" };
- log_info!(logger, "{} onchain {}", log_start, log_tx!(tx));
- broadcaster.broadcast_transactions(&[&tx]);
+ if tx.is_fully_signed() {
+ let log_start = if bumped_feerate { "Broadcasting RBF-bumped" } else { "Rebroadcasting" };
+ log_info!(logger, "{} onchain {}", log_start, log_tx!(tx.0));
+ broadcaster.broadcast_transactions(&[&tx.0]);
+ } else {
+ log_info!(logger, "Waiting for signature of unsigned onchain transaction {}", tx.0.txid());
+ }
},
OnchainClaim::Event(event) => {
let log_start = if bumped_feerate { "Yielding fee-bumped" } else { "Replaying" };
) {
assert!(new_feerate != 0);
- let transaction = cached_request.finalize_malleable_package(
+ let transaction = cached_request.maybe_finalize_malleable_package(
cur_height, self, output_value, self.destination_script.clone(), logger
).unwrap();
- log_trace!(logger, "...with timer {} and feerate {}", new_timer, new_feerate);
- assert!(predicted_weight >= transaction.weight().to_wu());
+ assert!(predicted_weight >= transaction.0.weight().to_wu());
return Some((new_timer, new_feerate, OnchainClaim::Tx(transaction)));
}
} else {
// which require external funding.
let mut inputs = cached_request.inputs();
debug_assert_eq!(inputs.len(), 1);
- let tx = match cached_request.finalize_untractable_package(self, logger) {
+ let tx = match cached_request.maybe_finalize_untractable_package(self, logger) {
Some(tx) => tx,
None => return None,
};
// Commitment inputs with anchors support are the only untractable inputs supported
// thus far that require external funding.
PackageSolvingData::HolderFundingOutput(output) => {
- debug_assert_eq!(tx.txid(), self.holder_commitment.trust().txid(),
+ debug_assert_eq!(tx.0.txid(), self.holder_commitment.trust().txid(),
"Holder commitment transaction mismatch");
let conf_target = ConfirmationTarget::OnChainSweep;
let package_target_feerate_sat_per_1000_weight = cached_request
.compute_package_feerate(fee_estimator, conf_target, feerate_strategy);
if let Some(input_amount_sat) = output.funding_amount {
- let fee_sat = input_amount_sat - tx.output.iter().map(|output| output.value).sum::<u64>();
+ let fee_sat = input_amount_sat - tx.0.output.iter().map(|output| output.value).sum::<u64>();
let commitment_tx_feerate_sat_per_1000_weight =
- compute_feerate_sat_per_1000_weight(fee_sat, tx.weight().to_wu());
+ compute_feerate_sat_per_1000_weight(fee_sat, tx.0.weight().to_wu());
if commitment_tx_feerate_sat_per_1000_weight >= package_target_feerate_sat_per_1000_weight {
- log_debug!(logger, "Pre-signed {} already has feerate {} sat/kW above required {} sat/kW",
- log_tx!(tx), commitment_tx_feerate_sat_per_1000_weight,
+ log_debug!(logger, "Pre-signed commitment {} already has feerate {} sat/kW above required {} sat/kW",
+ tx.0.txid(), commitment_tx_feerate_sat_per_1000_weight,
package_target_feerate_sat_per_1000_weight);
return Some((new_timer, 0, OnchainClaim::Tx(tx.clone())));
}
// We'll locate an anchor output we can spend within the commitment transaction.
let funding_pubkey = &self.channel_transaction_parameters.holder_pubkeys.funding_pubkey;
- match chan_utils::get_anchor_output(&tx, funding_pubkey) {
+ match chan_utils::get_anchor_output(&tx.0, funding_pubkey) {
// An anchor output was found, so we should yield a funding event externally.
Some((idx, _)) => {
// TODO: Use a lower confirmation target when both our and the
package_target_feerate_sat_per_1000_weight as u64,
OnchainClaim::Event(ClaimEvent::BumpCommitment {
package_target_feerate_sat_per_1000_weight,
- commitment_tx: tx.clone(),
+ commitment_tx: tx.0.clone(),
anchor_output_idx: idx,
}),
))
// `OnchainClaim`.
let claim_id = match claim {
OnchainClaim::Tx(tx) => {
- log_info!(logger, "Broadcasting onchain {}", log_tx!(tx));
- broadcaster.broadcast_transactions(&[&tx]);
- ClaimId(tx.txid().to_byte_array())
+ if tx.is_fully_signed() {
+ log_info!(logger, "Broadcasting onchain {}", log_tx!(tx.0));
+ broadcaster.broadcast_transactions(&[&tx.0]);
+ } else {
+ log_info!(logger, "Waiting for signature of unsigned onchain transaction {}", tx.0.txid());
+ }
+ ClaimId(tx.0.txid().to_byte_array())
},
OnchainClaim::Event(claim_event) => {
log_info!(logger, "Yielding onchain event to spend inputs {:?}", req.outpoints());
) {
match bump_claim {
OnchainClaim::Tx(bump_tx) => {
- log_info!(logger, "Broadcasting RBF-bumped onchain {}", log_tx!(bump_tx));
- broadcaster.broadcast_transactions(&[&bump_tx]);
+ if bump_tx.is_fully_signed() {
+ log_info!(logger, "Broadcasting RBF-bumped onchain {}", log_tx!(bump_tx.0));
+ broadcaster.broadcast_transactions(&[&bump_tx.0]);
+ } else {
+ log_info!(logger, "Waiting for signature of RBF-bumped unsigned onchain transaction {}",
+ bump_tx.0.txid());
+ }
},
OnchainClaim::Event(claim_event) => {
log_info!(logger, "Yielding RBF-bumped onchain event to spend inputs {:?}", request.outpoints());
request.set_feerate(new_feerate);
match bump_claim {
OnchainClaim::Tx(bump_tx) => {
- log_info!(logger, "Broadcasting onchain {}", log_tx!(bump_tx));
- broadcaster.broadcast_transactions(&[&bump_tx]);
+ if bump_tx.is_fully_signed() {
+ log_info!(logger, "Broadcasting onchain {}", log_tx!(bump_tx.0));
+ broadcaster.broadcast_transactions(&[&bump_tx.0]);
+ } else {
+ log_info!(logger, "Waiting for signature of unsigned onchain transaction {}", bump_tx.0.txid());
+ }
},
OnchainClaim::Event(claim_event) => {
log_info!(logger, "Yielding onchain event after reorg to spend inputs {:?}", request.outpoints());
&self.holder_commitment.trust().built_transaction().transaction
}
- //TODO: getting lastest holder transactions should be infallible and result in us "force-closing the channel", but we may
- // have empty holder commitment transaction if a ChannelMonitor is asked to force-close just after OutboundV1Channel::get_funding_created,
- // before providing a initial commitment transaction. For outbound channel, init ChannelMonitor at Channel::funding_signed, there is nothing
- // to monitor before.
- pub(crate) fn get_fully_signed_holder_tx(&mut self, funding_redeemscript: &Script) -> Transaction {
- let sig = self.signer.sign_holder_commitment(&self.holder_commitment, &self.secp_ctx).expect("signing holder commitment");
- self.holder_commitment.add_holder_sig(funding_redeemscript, sig)
+ pub(crate) fn get_maybe_signed_holder_tx(&mut self, funding_redeemscript: &Script) -> MaybeSignedTransaction {
+ let tx = self.signer.sign_holder_commitment(&self.holder_commitment, &self.secp_ctx)
+ .map(|sig| self.holder_commitment.add_holder_sig(funding_redeemscript, sig))
+ .unwrap_or_else(|_| self.get_unsigned_holder_commitment_tx().clone());
+ MaybeSignedTransaction(tx)
}
#[cfg(any(test, feature="unsafe_revoked_tx_signing"))]
self.holder_commitment.add_holder_sig(funding_redeemscript, sig)
}
- pub(crate) fn get_fully_signed_htlc_tx(&mut self, outp: &::bitcoin::OutPoint, preimage: &Option<PaymentPreimage>) -> Option<Transaction> {
+ pub(crate) fn get_maybe_signed_htlc_tx(&mut self, outp: &::bitcoin::OutPoint, preimage: &Option<PaymentPreimage>) -> Option<MaybeSignedTransaction> {
let get_signed_htlc_tx = |holder_commitment: &HolderCommitmentTransaction| {
let trusted_tx = holder_commitment.trust();
if trusted_tx.txid() != outp.txid {
preimage: preimage.clone(),
counterparty_sig: counterparty_htlc_sig.clone(),
};
- let htlc_sig = self.signer.sign_holder_htlc_transaction(&htlc_tx, 0, &htlc_descriptor, &self.secp_ctx).unwrap();
- htlc_tx.input[0].witness = trusted_tx.build_htlc_input_witness(
- htlc_idx, &counterparty_htlc_sig, &htlc_sig, preimage,
- );
- Some(htlc_tx)
+ if let Ok(htlc_sig) = self.signer.sign_holder_htlc_transaction(&htlc_tx, 0, &htlc_descriptor, &self.secp_ctx) {
+ htlc_tx.input[0].witness = trusted_tx.build_htlc_input_witness(
+ htlc_idx, &counterparty_htlc_sig, &htlc_sig, preimage,
+ );
+ }
+ Some(MaybeSignedTransaction(htlc_tx))
};
// Check if the HTLC spends from the current holder commitment first, or the previous.
projects / rust-lightning / blobdiff