use bitcoin::secp256k1::{Secp256k1, ecdsa::Signature};
use bitcoin::secp256k1;
-use crate::chain::keysinterface::BaseSign;
+use crate::chain::keysinterface::{ChannelSigner, EntropySource, SignerProvider};
use crate::ln::msgs::DecodeError;
use crate::ln::PaymentPreimage;
#[cfg(anchors)]
use crate::chain::chaininterface::ConfirmationTarget;
use crate::chain::chaininterface::{FeeEstimator, BroadcasterInterface, LowerBoundedFeeEstimator};
use crate::chain::channelmonitor::{ANTI_REORG_DELAY, CLTV_SHARED_CLAIM_BUFFER};
-use crate::chain::keysinterface::{Sign, KeysInterface};
+use crate::chain::keysinterface::WriteableEcdsaChannelSigner;
#[cfg(anchors)]
use crate::chain::package::PackageSolvingData;
use crate::chain::package::PackageTemplate;
/// Outpoint under claim process by our own tx, once this one get enough confirmations, we remove it from
/// bump-txn candidate buffer.
Claim {
- claim_request: Txid,
+ package_id: PackageID,
},
/// Claim tx aggregate multiple claimable outpoints. One of the outpoint may be claimed by a counterparty party tx.
/// In this case, we need to drop the outpoint and regenerate a new claim tx. By safety, we keep tracking
impl_writeable_tlv_based_enum_upgradable!(OnchainEvent,
(0, Claim) => {
- (0, claim_request, required),
+ (0, package_id, required),
},
(1, ContentiousOutpoint) => {
(0, package, required),
/// OnchainTxHandler receives claiming requests, aggregates them if it's sound, broadcast and
/// do RBF bumping if possible.
-pub struct OnchainTxHandler<ChannelSigner: Sign> {
+#[derive(PartialEq)]
+pub struct OnchainTxHandler<ChannelSigner: WriteableEcdsaChannelSigner> {
destination_script: Script,
holder_commitment: HolderCommitmentTransaction,
// holder_htlc_sigs and prev_holder_htlc_sigs are in the order as they appear in the commitment
const SERIALIZATION_VERSION: u8 = 1;
const MIN_SERIALIZATION_VERSION: u8 = 1;
-impl<ChannelSigner: Sign> OnchainTxHandler<ChannelSigner> {
+impl<ChannelSigner: WriteableEcdsaChannelSigner> OnchainTxHandler<ChannelSigner> {
pub(crate) fn write<W: Writer>(&self, writer: &mut W) -> Result<(), io::Error> {
write_ver_prefix!(writer, SERIALIZATION_VERSION, MIN_SERIALIZATION_VERSION);
}
}
-impl<'a, K: KeysInterface> ReadableArgs<(&'a K, u64, [u8; 32])> for OnchainTxHandler<K::Signer> {
- fn read<R: io::Read>(reader: &mut R, args: (&'a K, u64, [u8; 32])) -> Result<Self, DecodeError> {
- let keys_manager = args.0;
- let channel_value_satoshis = args.1;
- let channel_keys_id = args.2;
+impl<'a, 'b, ES: EntropySource, SP: SignerProvider> ReadableArgs<(&'a ES, &'b SP, u64, [u8; 32])> for OnchainTxHandler<SP::Signer> {
+ fn read<R: io::Read>(reader: &mut R, args: (&'a ES, &'b SP, u64, [u8; 32])) -> Result<Self, DecodeError> {
+ let entropy_source = args.0;
+ let signer_provider = args.1;
+ let channel_value_satoshis = args.2;
+ let channel_keys_id = args.3;
let _ver = read_ver_prefix!(reader, SERIALIZATION_VERSION);
bytes_read += bytes_to_read;
}
- let mut signer = keys_manager.derive_channel_signer(channel_value_satoshis, channel_keys_id);
+ let mut signer = signer_provider.derive_channel_signer(channel_value_satoshis, channel_keys_id);
signer.provide_channel_parameters(&channel_parameters);
let pending_claim_requests_len: u64 = Readable::read(reader)?;
read_tlv_fields!(reader, {});
let mut secp_ctx = Secp256k1::new();
- secp_ctx.seeded_randomize(&keys_manager.get_secure_random_bytes());
+ secp_ctx.seeded_randomize(&entropy_source.get_secure_random_bytes());
Ok(OnchainTxHandler {
destination_script,
}
}
-impl<ChannelSigner: Sign> OnchainTxHandler<ChannelSigner> {
+impl<ChannelSigner: WriteableEcdsaChannelSigner> OnchainTxHandler<ChannelSigner> {
pub(crate) fn new(destination_script: Script, signer: ChannelSigner, channel_parameters: ChannelTransactionParameters, holder_commitment: HolderCommitmentTransaction, secp_ctx: Secp256k1<secp256k1::All>) -> Self {
OnchainTxHandler {
destination_script,
// remove it once it reaches the confirmation threshold, or to generate a new claim if the
// transaction is reorged out.
let mut all_inputs_have_confirmed_spend = true;
- for outpoint in &request_outpoints {
- if let Some(first_claim_txid_height) = self.claimable_outpoints.get(outpoint) {
+ for outpoint in request_outpoints.iter() {
+ if let Some(first_claim_txid_height) = self.claimable_outpoints.get(*outpoint) {
// We check for outpoint spends within claims individually rather than as a set
// since requests can have outpoints split off.
if !self.onchain_events_awaiting_threshold_conf.iter()
- .any(|event_entry| if let OnchainEvent::Claim { claim_request } = event_entry.event {
- first_claim_txid_height.0 == claim_request.into_inner()
+ .any(|event_entry| if let OnchainEvent::Claim { package_id } = event_entry.event {
+ first_claim_txid_height.0 == package_id
} else {
// The onchain event is not a claim, keep seeking until we find one.
false
// outpoints to know if transaction is the original claim or a bumped one issued
// by us.
let mut are_sets_equal = true;
- if !request.requires_external_funding() || !request.is_malleable() {
- // If the claim does not require external funds to be allocated through
- // additional inputs we can simply check the inputs in order as they
- // cannot change under us.
- if request.outpoints().len() != tx.input.len() {
+ let mut tx_inputs = tx.input.iter().map(|input| &input.previous_output).collect::<Vec<_>>();
+ tx_inputs.sort_unstable();
+ for request_input in request.outpoints() {
+ if tx_inputs.binary_search(&request_input).is_err() {
are_sets_equal = false;
- } else {
- for (claim_inp, tx_inp) in request.outpoints().iter().zip(tx.input.iter()) {
- if **claim_inp != tx_inp.previous_output {
- are_sets_equal = false;
- }
- }
- }
- } else {
- // Otherwise, we'll do a linear search for each input (we don't expect
- // large input sets to exist) to ensure the request's input set is fully
- // spent to be resilient against the external claim reordering inputs.
- let mut spends_all_inputs = true;
- for request_input in request.outpoints() {
- if tx.input.iter().find(|input| input.previous_output == *request_input).is_none() {
- spends_all_inputs = false;
- break;
- }
+ break;
}
- are_sets_equal = spends_all_inputs;
}
macro_rules! clean_claim_request_after_safety_delay {
txid: tx.txid(),
height: conf_height,
block_hash: Some(conf_hash),
- event: OnchainEvent::Claim { claim_request: Txid::from_inner(first_claim_txid_height.0) }
+ event: OnchainEvent::Claim { package_id: first_claim_txid_height.0 }
};
if !self.onchain_events_awaiting_threshold_conf.contains(&entry) {
self.onchain_events_awaiting_threshold_conf.push(entry);
for entry in onchain_events_awaiting_threshold_conf {
if entry.has_reached_confirmation_threshold(cur_height) {
match entry.event {
- OnchainEvent::Claim { claim_request } => {
- let package_id = claim_request.into_inner();
+ OnchainEvent::Claim { package_id } => {
// We may remove a whole set of claim outpoints here, as these one may have
// been aggregated in a single tx and claimed so atomically
if let Some(request) = self.pending_claim_requests.remove(&package_id) {
for outpoint in request.outpoints() {
- log_debug!(logger, "Removing claim tracking for {} due to maturation of claim tx {}.", outpoint, claim_request);
- self.claimable_outpoints.remove(&outpoint);
+ log_debug!(logger, "Removing claim tracking for {} due to maturation of claim package {}.",
+ outpoint, log_bytes!(package_id));
+ self.claimable_outpoints.remove(outpoint);
#[cfg(anchors)]
self.pending_claim_events.remove(&package_id);
}
OnchainEvent::ContentiousOutpoint { package } => {
log_debug!(logger, "Removing claim tracking due to maturation of claim tx for outpoints:");
log_debug!(logger, " {:?}", package.outpoints());
- self.claimable_outpoints.remove(&package.outpoints()[0]);
+ self.claimable_outpoints.remove(package.outpoints()[0]);
}
}
} else {
//- resurect outpoint back in its claimable set and regenerate tx
match entry.event {
OnchainEvent::ContentiousOutpoint { package } => {
- if let Some(ancestor_claimable_txid) = self.claimable_outpoints.get(&package.outpoints()[0]) {
+ if let Some(ancestor_claimable_txid) = self.claimable_outpoints.get(package.outpoints()[0]) {
if let Some(request) = self.pending_claim_requests.get_mut(&ancestor_claimable_txid.0) {
request.merge_package(package);
// Using a HashMap guarantee us than if we have multiple outpoints getting
#[cfg(anchors)]
pub(crate) fn generate_external_htlc_claim(
- &
mut self, outp: &::bitcoin::OutPoint, preimage: &Option<PaymentPreimage>
+ &self, outp: &::bitcoin::OutPoint, preimage: &Option<PaymentPreimage>
) -> Option<ExternalHTLCClaim> {
let find_htlc = |holder_commitment: &HolderCommitmentTransaction| -> Option<ExternalHTLCClaim> {
let trusted_tx = holder_commitment.trust();
projects / rust-lightning / blobdiff