+// This file is Copyright its original authors, visible in version control
+// history.
+//
+// This file is licensed under the Apache License, Version 2.0 <LICENSE-APACHE
+// or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
+// You may not use this file except in accordance with one or both of these
+// licenses.
+
//! The logic to monitor for on-chain transactions and create the relevant claim responses lives
//! here.
//!
use bitcoin::blockdata::script::{Script, Builder};
use bitcoin::blockdata::opcodes;
use bitcoin::consensus::encode;
-use bitcoin::util::hash::BitcoinHash;
use bitcoin::hashes::Hash;
use bitcoin::hashes::sha256::Hash as Sha256;
use ln::chan_utils;
use ln::chan_utils::{CounterpartyCommitmentSecrets, HTLCOutputInCommitment, LocalCommitmentTransaction, HTLCType};
use ln::channelmanager::{HTLCSource, PaymentPreimage, PaymentHash};
-use ln::onchaintx::OnchainTxHandler;
+use ln::onchaintx::{OnchainTxHandler, InputDescriptors};
use chain::chaininterface::{ChainListener, ChainWatchInterface, BroadcasterInterface, FeeEstimator};
use chain::transaction::OutPoint;
use chain::keysinterface::{SpendableOutputDescriptor, ChannelKeys};
use util::logger::Logger;
use util::ser::{Readable, MaybeReadable, Writer, Writeable, U48};
use util::{byte_utils, events};
+use util::events::Event;
use std::collections::{HashMap, hash_map};
use std::sync::Mutex;
use std::{hash,cmp, mem};
use std::ops::Deref;
+use std::io::Error;
/// An update generated by the underlying Channel itself which contains some new information the
/// ChannelMonitor should be made aware of.
#[derive(Debug)]
pub struct MonitorUpdateError(pub &'static str);
+/// An event to be processed by the ChannelManager.
+#[derive(PartialEq)]
+pub enum MonitorEvent {
+ /// A monitor event containing an HTLCUpdate.
+ HTLCEvent(HTLCUpdate),
+
+ /// A monitor event that the Channel's commitment transaction was broadcasted.
+ CommitmentTxBroadcasted(OutPoint),
+}
+
/// Simple structure send back by ManyChannelMonitor in case of HTLC detected onchain from a
/// forward channel and from which info are needed to update HTLC in a backward channel.
#[derive(Clone, PartialEq)]
L::Target: Logger,
C::Target: ChainWatchInterface,
{
- #[cfg(test)] // Used in ChannelManager tests to manipulate channels directly
+ /// The monitors
pub monitors: Mutex<HashMap<Key, ChannelMonitor<ChanSigner>>>,
- #[cfg(not(test))]
- monitors: Mutex<HashMap<Key, ChannelMonitor<ChanSigner>>>,
chain_monitor: C,
broadcaster: T,
logger: L,
L::Target: Logger,
C::Target: ChainWatchInterface,
{
- fn block_connected(&self, header: &BlockHeader, height: u32, txn_matched: &[&Transaction], _indexes_of_txn_matched: &[u32]) {
- let block_hash = header.bitcoin_hash();
+ fn block_connected(&self, header: &BlockHeader, height: u32, txn_matched: &[&Transaction], _indexes_of_txn_matched: &[usize]) {
+ let block_hash = header.block_hash();
{
let mut monitors = self.monitors.lock().unwrap();
for monitor in monitors.values_mut() {
}
fn block_disconnected(&self, header: &BlockHeader, disconnected_height: u32) {
- let block_hash = header.bitcoin_hash();
+ let block_hash = header.block_hash();
let mut monitors = self.monitors.lock().unwrap();
for monitor in monitors.values_mut() {
monitor.block_disconnected(disconnected_height, &block_hash, &*self.broadcaster, &*self.fee_estimator, &*self.logger);
hash_map::Entry::Occupied(_) => return Err(MonitorUpdateError("Channel monitor for given key is already present")),
hash_map::Entry::Vacant(e) => e,
};
- log_trace!(self.logger, "Got new Channel Monitor for channel {}", log_bytes!(monitor.funding_info.0.to_channel_id()[..]));
- self.chain_monitor.install_watch_tx(&monitor.funding_info.0.txid, &monitor.funding_info.1);
- self.chain_monitor.install_watch_outpoint((monitor.funding_info.0.txid, monitor.funding_info.0.index as u32), &monitor.funding_info.1);
- for (txid, outputs) in monitor.get_outputs_to_watch().iter() {
- for (idx, script) in outputs.iter().enumerate() {
- self.chain_monitor.install_watch_outpoint((*txid, idx as u32), script);
+ {
+ let funding_txo = monitor.get_funding_txo();
+ log_trace!(self.logger, "Got new Channel Monitor for channel {}", log_bytes!(funding_txo.0.to_channel_id()[..]));
+ self.chain_monitor.install_watch_tx(&funding_txo.0.txid, &funding_txo.1);
+ self.chain_monitor.install_watch_outpoint((funding_txo.0.txid, funding_txo.0.index as u32), &funding_txo.1);
+ for (txid, outputs) in monitor.get_outputs_to_watch().iter() {
+ for (idx, script) in outputs.iter().enumerate() {
+ self.chain_monitor.install_watch_outpoint((*txid, idx as u32), script);
+ }
}
}
entry.insert(monitor);
}
}
- fn get_and_clear_pending_htlcs_updated(&self) -> Vec<HTLCUpdate> {
- let mut pending_htlcs_updated = Vec::new();
+ fn get_and_clear_pending_monitor_events(&self) -> Vec<MonitorEvent> {
+ let mut pending_monitor_events = Vec::new();
for chan in self.monitors.lock().unwrap().values_mut() {
- pending_htlcs_updated.append(&mut chan.get_and_clear_pending_htlcs_updated());
+ pending_monitor_events.append(&mut chan.get_and_clear_pending_monitor_events());
}
- pending_htlcs_updated
+ pending_monitor_events
}
}
L::Target: Logger,
C::Target: ChainWatchInterface,
{
- fn get_and_clear_pending_events(&self) -> Vec<events::Event> {
+ fn get_and_clear_pending_events(&self) -> Vec<Event> {
let mut pending_events = Vec::new();
for chan in self.monitors.lock().unwrap().values_mut() {
pending_events.append(&mut chan.get_and_clear_pending_events());
b_htlc_key: PublicKey,
delayed_payment_key: PublicKey,
per_commitment_point: PublicKey,
- feerate_per_kw: u64,
+ feerate_per_kw: u32,
htlc_outputs: Vec<(HTLCOutputInCommitment, Option<Signature>, Option<HTLCSource>)>,
}
+/// We use this to track remote commitment transactions and htlcs outputs and
+/// use it to generate any justice or 2nd-stage preimage/timeout transactions.
+#[derive(PartialEq)]
+struct RemoteCommitmentTransaction {
+ remote_delayed_payment_base_key: PublicKey,
+ remote_htlc_base_key: PublicKey,
+ on_remote_tx_csv: u16,
+ per_htlc: HashMap<Txid, Vec<HTLCOutputInCommitment>>
+}
+
+impl Writeable for RemoteCommitmentTransaction {
+ fn write<W: Writer>(&self, w: &mut W) -> Result<(), ::std::io::Error> {
+ self.remote_delayed_payment_base_key.write(w)?;
+ self.remote_htlc_base_key.write(w)?;
+ w.write_all(&byte_utils::be16_to_array(self.on_remote_tx_csv))?;
+ w.write_all(&byte_utils::be64_to_array(self.per_htlc.len() as u64))?;
+ for (ref txid, ref htlcs) in self.per_htlc.iter() {
+ w.write_all(&txid[..])?;
+ w.write_all(&byte_utils::be64_to_array(htlcs.len() as u64))?;
+ for &ref htlc in htlcs.iter() {
+ htlc.write(w)?;
+ }
+ }
+ Ok(())
+ }
+}
+impl Readable for RemoteCommitmentTransaction {
+ fn read<R: ::std::io::Read>(r: &mut R) -> Result<Self, DecodeError> {
+ let remote_commitment_transaction = {
+ let remote_delayed_payment_base_key = Readable::read(r)?;
+ let remote_htlc_base_key = Readable::read(r)?;
+ let on_remote_tx_csv: u16 = Readable::read(r)?;
+ let per_htlc_len: u64 = Readable::read(r)?;
+ let mut per_htlc = HashMap::with_capacity(cmp::min(per_htlc_len as usize, MAX_ALLOC_SIZE / 64));
+ for _ in 0..per_htlc_len {
+ let txid: Txid = Readable::read(r)?;
+ let htlcs_count: u64 = Readable::read(r)?;
+ let mut htlcs = Vec::with_capacity(cmp::min(htlcs_count as usize, MAX_ALLOC_SIZE / 32));
+ for _ in 0..htlcs_count {
+ let htlc = Readable::read(r)?;
+ htlcs.push(htlc);
+ }
+ if let Some(_) = per_htlc.insert(txid, htlcs) {
+ return Err(DecodeError::InvalidValue);
+ }
+ }
+ RemoteCommitmentTransaction {
+ remote_delayed_payment_base_key,
+ remote_htlc_base_key,
+ on_remote_tx_csv,
+ per_htlc,
+ }
+ };
+ Ok(remote_commitment_transaction)
+ }
+}
+
/// When ChannelMonitor discovers an onchain outpoint being a step of a channel and that it needs
/// to generate a tx to push channel state forward, we cache outpoint-solving tx material to build
/// a new bumped one in case of lenghty confirmation delay
#[derive(Clone, PartialEq)]
pub(crate) enum InputMaterial {
Revoked {
- witness_script: Script,
- pubkey: Option<PublicKey>,
- key: SecretKey,
- is_htlc: bool,
+ per_commitment_point: PublicKey,
+ remote_delayed_payment_base_key: PublicKey,
+ remote_htlc_base_key: PublicKey,
+ per_commitment_key: SecretKey,
+ input_descriptor: InputDescriptors,
amount: u64,
+ htlc: Option<HTLCOutputInCommitment>,
+ on_remote_tx_csv: u16,
},
RemoteHTLC {
- witness_script: Script,
- key: SecretKey,
+ per_commitment_point: PublicKey,
+ remote_delayed_payment_base_key: PublicKey,
+ remote_htlc_base_key: PublicKey,
preimage: Option<PaymentPreimage>,
- amount: u64,
- locktime: u32,
+ htlc: HTLCOutputInCommitment
},
LocalHTLC {
preimage: Option<PaymentPreimage>,
impl Writeable for InputMaterial {
fn write<W: Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
match self {
- &InputMaterial::Revoked { ref witness_script, ref pubkey, ref key, ref is_htlc, ref amount} => {
+ &InputMaterial::Revoked { ref per_commitment_point, ref remote_delayed_payment_base_key, ref remote_htlc_base_key, ref per_commitment_key, ref input_descriptor, ref amount, ref htlc, ref on_remote_tx_csv} => {
writer.write_all(&[0; 1])?;
- witness_script.write(writer)?;
- pubkey.write(writer)?;
- writer.write_all(&key[..])?;
- is_htlc.write(writer)?;
+ per_commitment_point.write(writer)?;
+ remote_delayed_payment_base_key.write(writer)?;
+ remote_htlc_base_key.write(writer)?;
+ writer.write_all(&per_commitment_key[..])?;
+ input_descriptor.write(writer)?;
writer.write_all(&byte_utils::be64_to_array(*amount))?;
+ htlc.write(writer)?;
+ on_remote_tx_csv.write(writer)?;
},
- &InputMaterial::RemoteHTLC { ref witness_script, ref key, ref preimage, ref amount, ref locktime } => {
+ &InputMaterial::RemoteHTLC { ref per_commitment_point, ref remote_delayed_payment_base_key, ref remote_htlc_base_key, ref preimage, ref htlc} => {
writer.write_all(&[1; 1])?;
- witness_script.write(writer)?;
- key.write(writer)?;
+ per_commitment_point.write(writer)?;
+ remote_delayed_payment_base_key.write(writer)?;
+ remote_htlc_base_key.write(writer)?;
preimage.write(writer)?;
- writer.write_all(&byte_utils::be64_to_array(*amount))?;
- writer.write_all(&byte_utils::be32_to_array(*locktime))?;
+ htlc.write(writer)?;
},
&InputMaterial::LocalHTLC { ref preimage, ref amount } => {
writer.write_all(&[2; 1])?;
fn read<R: ::std::io::Read>(reader: &mut R) -> Result<Self, DecodeError> {
let input_material = match <u8 as Readable>::read(reader)? {
0 => {
- let witness_script = Readable::read(reader)?;
- let pubkey = Readable::read(reader)?;
- let key = Readable::read(reader)?;
- let is_htlc = Readable::read(reader)?;
+ let per_commitment_point = Readable::read(reader)?;
+ let remote_delayed_payment_base_key = Readable::read(reader)?;
+ let remote_htlc_base_key = Readable::read(reader)?;
+ let per_commitment_key = Readable::read(reader)?;
+ let input_descriptor = Readable::read(reader)?;
let amount = Readable::read(reader)?;
+ let htlc = Readable::read(reader)?;
+ let on_remote_tx_csv = Readable::read(reader)?;
InputMaterial::Revoked {
- witness_script,
- pubkey,
- key,
- is_htlc,
- amount
+ per_commitment_point,
+ remote_delayed_payment_base_key,
+ remote_htlc_base_key,
+ per_commitment_key,
+ input_descriptor,
+ amount,
+ htlc,
+ on_remote_tx_csv
}
},
1 => {
- let witness_script = Readable::read(reader)?;
- let key = Readable::read(reader)?;
+ let per_commitment_point = Readable::read(reader)?;
+ let remote_delayed_payment_base_key = Readable::read(reader)?;
+ let remote_htlc_base_key = Readable::read(reader)?;
let preimage = Readable::read(reader)?;
- let amount = Readable::read(reader)?;
- let locktime = Readable::read(reader)?;
+ let htlc = Readable::read(reader)?;
InputMaterial::RemoteHTLC {
- witness_script,
- key,
+ per_commitment_point,
+ remote_delayed_payment_base_key,
+ remote_htlc_base_key,
preimage,
- amount,
- locktime
+ htlc
}
},
2 => {
/// information and are actively monitoring the chain.
///
/// Pending Events or updated HTLCs which have not yet been read out by
-/// get_and_clear_pending_htlcs_updated or get_and_clear_pending_events are serialized to disk and
+/// get_and_clear_pending_monitor_events or get_and_clear_pending_events are serialized to disk and
/// reloaded at deserialize-time. Thus, you must ensure that, when handling events, all events
/// gotten are fully handled before re-serializing the new state.
pub struct ChannelMonitor<ChanSigner: ChannelKeys> {
commitment_transaction_number_obscure_factor: u64,
destination_script: Script,
- broadcasted_local_revokable_script: Option<(Script, SecretKey, Script)>,
+ broadcasted_local_revokable_script: Option<(Script, PublicKey, PublicKey)>,
remote_payment_script: Script,
shutdown_script: Script,
current_remote_commitment_txid: Option<Txid>,
prev_remote_commitment_txid: Option<Txid>,
- their_htlc_base_key: PublicKey,
- their_delayed_payment_base_key: PublicKey,
+ remote_tx_cache: RemoteCommitmentTransaction,
funding_redeemscript: Script,
channel_value_satoshis: u64,
// first is the idx of the first of the two revocation points
their_cur_revocation_points: Option<(u64, PublicKey, Option<PublicKey>)>,
- our_to_self_delay: u16,
- their_to_self_delay: u16,
+ on_local_tx_csv: u16,
commitment_secrets: CounterpartyCommitmentSecrets,
remote_claimable_outpoints: HashMap<Txid, Vec<(HTLCOutputInCommitment, Option<Box<HTLCSource>>)>>,
payment_preimages: HashMap<PaymentHash, PaymentPreimage>,
- pending_htlcs_updated: Vec<HTLCUpdate>,
- pending_events: Vec<events::Event>,
+ pending_monitor_events: Vec<MonitorEvent>,
+ pending_events: Vec<Event>,
// Used to track onchain events, i.e transactions parts of channels confirmed on chain, on which
// we have to take actions once they reach enough confs. Key is a block height timer, i.e we enforce
// (we do *not*, however, update them in update_monitor to ensure any local user copies keep
// their last_block_hash from its state and not based on updated copies that didn't run through
// the full block_connected).
- pub(crate) last_block_hash: BlockHash,
+ last_block_hash: BlockHash,
secp_ctx: Secp256k1<secp256k1::All>, //TODO: dedup this a bit...
}
/// with success or failure.
///
/// You should probably just call through to
- /// ChannelMonitor::get_and_clear_pending_htlcs_updated() for each ChannelMonitor and return
+ /// ChannelMonitor::get_and_clear_pending_monitor_events() for each ChannelMonitor and return
/// the full list.
- fn get_and_clear_pending_htlcs_updated(&self) -> Vec<HTLCUpdate>;
+ fn get_and_clear_pending_monitor_events(&self) -> Vec<MonitorEvent>;
}
#[cfg(any(test, feature = "fuzztarget"))]
self.funding_info != other.funding_info ||
self.current_remote_commitment_txid != other.current_remote_commitment_txid ||
self.prev_remote_commitment_txid != other.prev_remote_commitment_txid ||
- self.their_htlc_base_key != other.their_htlc_base_key ||
- self.their_delayed_payment_base_key != other.their_delayed_payment_base_key ||
+ self.remote_tx_cache != other.remote_tx_cache ||
self.funding_redeemscript != other.funding_redeemscript ||
self.channel_value_satoshis != other.channel_value_satoshis ||
self.their_cur_revocation_points != other.their_cur_revocation_points ||
- self.our_to_self_delay != other.our_to_self_delay ||
- self.their_to_self_delay != other.their_to_self_delay ||
+ self.on_local_tx_csv != other.on_local_tx_csv ||
self.commitment_secrets != other.commitment_secrets ||
self.remote_claimable_outpoints != other.remote_claimable_outpoints ||
self.remote_commitment_txn_on_chain != other.remote_commitment_txn_on_chain ||
self.current_local_commitment_number != other.current_local_commitment_number ||
self.current_local_commitment_tx != other.current_local_commitment_tx ||
self.payment_preimages != other.payment_preimages ||
- self.pending_htlcs_updated != other.pending_htlcs_updated ||
+ self.pending_monitor_events != other.pending_monitor_events ||
self.pending_events.len() != other.pending_events.len() || // We trust events to round-trip properly
self.onchain_events_waiting_threshold_conf != other.onchain_events_waiting_threshold_conf ||
self.outputs_to_watch != other.outputs_to_watch ||
/// the "reorg path" (ie disconnecting blocks until you find a common ancestor from both the
/// returned block hash and the the current chain and then reconnecting blocks to get to the
/// best chain) upon deserializing the object!
- pub fn write_for_disk<W: Writer>(&self, writer: &mut W) -> Result<(), ::std::io::Error> {
+ pub fn write_for_disk<W: Writer>(&self, writer: &mut W) -> Result<(), Error> {
//TODO: We still write out all the serialization here manually instead of using the fancy
//serialization framework we have, we should migrate things over to it.
writer.write_all(&[SERIALIZATION_VERSION; 1])?;
self.current_remote_commitment_txid.write(writer)?;
self.prev_remote_commitment_txid.write(writer)?;
- writer.write_all(&self.their_htlc_base_key.serialize())?;
- writer.write_all(&self.their_delayed_payment_base_key.serialize())?;
+ self.remote_tx_cache.write(writer)?;
self.funding_redeemscript.write(writer)?;
self.channel_value_satoshis.write(writer)?;
},
}
- writer.write_all(&byte_utils::be16_to_array(self.our_to_self_delay))?;
- writer.write_all(&byte_utils::be16_to_array(self.their_to_self_delay))?;
+ writer.write_all(&byte_utils::be16_to_array(self.on_local_tx_csv))?;
self.commitment_secrets.write(writer)?;
writer.write_all(&$local_tx.delayed_payment_key.serialize())?;
writer.write_all(&$local_tx.per_commitment_point.serialize())?;
- writer.write_all(&byte_utils::be64_to_array($local_tx.feerate_per_kw))?;
+ writer.write_all(&byte_utils::be32_to_array($local_tx.feerate_per_kw))?;
writer.write_all(&byte_utils::be64_to_array($local_tx.htlc_outputs.len() as u64))?;
for &(ref htlc_output, ref sig, ref htlc_source) in $local_tx.htlc_outputs.iter() {
serialize_htlc_in_commitment!(htlc_output);
writer.write_all(&payment_preimage.0[..])?;
}
- writer.write_all(&byte_utils::be64_to_array(self.pending_htlcs_updated.len() as u64))?;
- for data in self.pending_htlcs_updated.iter() {
- data.write(writer)?;
+ writer.write_all(&byte_utils::be64_to_array(self.pending_monitor_events.len() as u64))?;
+ for event in self.pending_monitor_events.iter() {
+ match event {
+ MonitorEvent::HTLCEvent(upd) => {
+ 0u8.write(writer)?;
+ upd.write(writer)?;
+ },
+ MonitorEvent::CommitmentTxBroadcasted(_) => 1u8.write(writer)?
+ }
}
writer.write_all(&byte_utils::be64_to_array(self.pending_events.len() as u64))?;
impl<ChanSigner: ChannelKeys> ChannelMonitor<ChanSigner> {
pub(super) fn new(keys: ChanSigner, shutdown_pubkey: &PublicKey,
- our_to_self_delay: u16, destination_script: &Script, funding_info: (OutPoint, Script),
- their_htlc_base_key: &PublicKey, their_delayed_payment_base_key: &PublicKey,
- their_to_self_delay: u16, funding_redeemscript: Script, channel_value_satoshis: u64,
+ on_remote_tx_csv: u16, destination_script: &Script, funding_info: (OutPoint, Script),
+ remote_htlc_base_key: &PublicKey, remote_delayed_payment_base_key: &PublicKey,
+ on_local_tx_csv: u16, funding_redeemscript: Script, channel_value_satoshis: u64,
commitment_transaction_number_obscure_factor: u64,
initial_local_commitment_tx: LocalCommitmentTransaction) -> ChannelMonitor<ChanSigner> {
let payment_key_hash = WPubkeyHash::hash(&keys.pubkeys().payment_point.serialize());
let remote_payment_script = Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&payment_key_hash[..]).into_script();
- let mut onchain_tx_handler = OnchainTxHandler::new(destination_script.clone(), keys.clone(), their_to_self_delay);
+ let remote_tx_cache = RemoteCommitmentTransaction { remote_delayed_payment_base_key: *remote_delayed_payment_base_key, remote_htlc_base_key: *remote_htlc_base_key, on_remote_tx_csv, per_htlc: HashMap::new() };
+
+ let mut onchain_tx_handler = OnchainTxHandler::new(destination_script.clone(), keys.clone(), on_local_tx_csv);
let local_tx_sequence = initial_local_commitment_tx.unsigned_tx.input[0].sequence as u64;
let local_tx_locktime = initial_local_commitment_tx.unsigned_tx.lock_time as u64;
current_remote_commitment_txid: None,
prev_remote_commitment_txid: None,
- their_htlc_base_key: their_htlc_base_key.clone(),
- their_delayed_payment_base_key: their_delayed_payment_base_key.clone(),
+ remote_tx_cache,
funding_redeemscript,
channel_value_satoshis: channel_value_satoshis,
their_cur_revocation_points: None,
- our_to_self_delay,
- their_to_self_delay,
+ on_local_tx_csv,
commitment_secrets: CounterpartyCommitmentSecrets::new(),
remote_claimable_outpoints: HashMap::new(),
current_local_commitment_number: 0xffff_ffff_ffff - ((((local_tx_sequence & 0xffffff) << 3*8) | (local_tx_locktime as u64 & 0xffffff)) ^ commitment_transaction_number_obscure_factor),
payment_preimages: HashMap::new(),
- pending_htlcs_updated: Vec::new(),
+ pending_monitor_events: Vec::new(),
pending_events: Vec::new(),
onchain_events_waiting_threshold_conf: HashMap::new(),
log_trace!(logger, "New potential remote commitment transaction: {}", encode::serialize_hex(unsigned_commitment_tx));
self.prev_remote_commitment_txid = self.current_remote_commitment_txid.take();
self.current_remote_commitment_txid = Some(new_txid);
- self.remote_claimable_outpoints.insert(new_txid, htlc_outputs);
+ self.remote_claimable_outpoints.insert(new_txid, htlc_outputs.clone());
self.current_remote_commitment_number = commitment_number;
//TODO: Merge this into the other per-remote-transaction output storage stuff
match self.their_cur_revocation_points {
self.their_cur_revocation_points = Some((commitment_number, their_revocation_point, None));
}
}
+ let mut htlcs = Vec::with_capacity(htlc_outputs.len());
+ for htlc in htlc_outputs {
+ if htlc.0.transaction_output_index.is_some() {
+ htlcs.push(htlc.0);
+ }
+ }
+ self.remote_tx_cache.per_htlc.insert(new_txid, htlcs);
}
/// Informs this monitor of the latest local (ie broadcastable) commitment transaction. The
/// monitor watches for timeouts and may broadcast it if we approach such a timeout. Thus, it
/// is important that any clones of this channel monitor (including remote clones) by kept
/// up-to-date as our local commitment transaction is updated.
- /// Panics if set_their_to_self_delay has never been called.
+ /// Panics if set_on_local_tx_csv has never been called.
pub(super) fn provide_latest_local_commitment_tx_info(&mut self, commitment_tx: LocalCommitmentTransaction, htlc_outputs: Vec<(HTLCOutputInCommitment, Option<Signature>, Option<HTLCSource>)>) -> Result<(), MonitorUpdateError> {
if self.local_tx_signed {
return Err(MonitorUpdateError("A local commitment tx has already been signed, no new local commitment txn can be sent to our counterparty"));
for tx in self.get_latest_local_commitment_txn(logger).iter() {
broadcaster.broadcast_transaction(tx);
}
- }
-
- /// Used in Channel to cheat wrt the update_ids since it plays games, will be removed soon!
- pub(super) fn update_monitor_ooo<L: Deref>(&mut self, mut updates: ChannelMonitorUpdate, logger: &L) -> Result<(), MonitorUpdateError> where L::Target: Logger {
- for update in updates.updates.drain(..) {
- match update {
- ChannelMonitorUpdateStep::LatestLocalCommitmentTXInfo { commitment_tx, htlc_outputs } => {
- if self.lockdown_from_offchain { panic!(); }
- self.provide_latest_local_commitment_tx_info(commitment_tx, htlc_outputs)?
- },
- ChannelMonitorUpdateStep::LatestRemoteCommitmentTXInfo { unsigned_commitment_tx, htlc_outputs, commitment_number, their_revocation_point } =>
- self.provide_latest_remote_commitment_tx_info(&unsigned_commitment_tx, htlc_outputs, commitment_number, their_revocation_point, logger),
- ChannelMonitorUpdateStep::PaymentPreimage { payment_preimage } =>
- self.provide_payment_preimage(&PaymentHash(Sha256::hash(&payment_preimage.0[..]).into_inner()), &payment_preimage),
- ChannelMonitorUpdateStep::CommitmentSecret { idx, secret } =>
- self.provide_secret(idx, secret)?,
- ChannelMonitorUpdateStep::ChannelForceClosed { .. } => {},
- }
- }
- self.latest_update_id = updates.update_id;
- Ok(())
+ self.pending_monitor_events.push(MonitorEvent::CommitmentTxBroadcasted(self.funding_info.0));
}
/// Updates a ChannelMonitor on the basis of some new information provided by the Channel
}
/// Gets the funding transaction outpoint of the channel this ChannelMonitor is monitoring for.
- pub fn get_funding_txo(&self) -> OutPoint {
- self.funding_info.0
+ pub fn get_funding_txo(&self) -> &(OutPoint, Script) {
+ &self.funding_info
}
/// Gets a list of txids, with their output scripts (in the order they appear in the
}
/// Get the list of HTLCs who's status has been updated on chain. This should be called by
- /// ChannelManager via ManyChannelMonitor::get_and_clear_pending_htlcs_updated().
- pub fn get_and_clear_pending_htlcs_updated(&mut self) -> Vec<HTLCUpdate> {
+ /// ChannelManager via ManyChannelMonitor::get_and_clear_pending_monitor_events().
+ pub fn get_and_clear_pending_monitor_events(&mut self) -> Vec<MonitorEvent> {
let mut ret = Vec::new();
- mem::swap(&mut ret, &mut self.pending_htlcs_updated);
+ mem::swap(&mut ret, &mut self.pending_monitor_events);
ret
}
/// This is called by ManyChannelMonitor::get_and_clear_pending_events() and is equivalent to
/// EventsProvider::get_and_clear_pending_events() except that it requires &mut self as we do
/// no internal locking in ChannelMonitors.
- pub fn get_and_clear_pending_events(&mut self) -> Vec<events::Event> {
+ pub fn get_and_clear_pending_events(&mut self) -> Vec<Event> {
let mut ret = Vec::new();
mem::swap(&mut ret, &mut self.pending_events);
ret
let per_commitment_key = ignore_error!(SecretKey::from_slice(&secret));
let per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &per_commitment_key);
let revocation_pubkey = ignore_error!(chan_utils::derive_public_revocation_key(&self.secp_ctx, &per_commitment_point, &self.keys.pubkeys().revocation_basepoint));
- let revocation_key = ignore_error!(chan_utils::derive_private_revocation_key(&self.secp_ctx, &per_commitment_key, &self.keys.revocation_base_key()));
- let b_htlc_key = ignore_error!(chan_utils::derive_public_key(&self.secp_ctx, &per_commitment_point, &self.keys.pubkeys().htlc_basepoint));
- let delayed_key = ignore_error!(chan_utils::derive_public_key(&self.secp_ctx, &PublicKey::from_secret_key(&self.secp_ctx, &per_commitment_key), &self.their_delayed_payment_base_key));
- let a_htlc_key = ignore_error!(chan_utils::derive_public_key(&self.secp_ctx, &PublicKey::from_secret_key(&self.secp_ctx, &per_commitment_key), &self.their_htlc_base_key));
+ let delayed_key = ignore_error!(chan_utils::derive_public_key(&self.secp_ctx, &PublicKey::from_secret_key(&self.secp_ctx, &per_commitment_key), &self.remote_tx_cache.remote_delayed_payment_base_key));
- let revokeable_redeemscript = chan_utils::get_revokeable_redeemscript(&revocation_pubkey, self.our_to_self_delay, &delayed_key);
+ let revokeable_redeemscript = chan_utils::get_revokeable_redeemscript(&revocation_pubkey, self.remote_tx_cache.on_remote_tx_csv, &delayed_key);
let revokeable_p2wsh = revokeable_redeemscript.to_v0_p2wsh();
// First, process non-htlc outputs (to_local & to_remote)
for (idx, outp) in tx.output.iter().enumerate() {
if outp.script_pubkey == revokeable_p2wsh {
- let witness_data = InputMaterial::Revoked { witness_script: revokeable_redeemscript.clone(), pubkey: Some(revocation_pubkey), key: revocation_key, is_htlc: false, amount: outp.value };
- claimable_outpoints.push(ClaimRequest { absolute_timelock: height + self.our_to_self_delay as u32, aggregable: true, outpoint: BitcoinOutPoint { txid: commitment_txid, vout: idx as u32 }, witness_data});
+ let witness_data = InputMaterial::Revoked { per_commitment_point, remote_delayed_payment_base_key: self.remote_tx_cache.remote_delayed_payment_base_key, remote_htlc_base_key: self.remote_tx_cache.remote_htlc_base_key, per_commitment_key, input_descriptor: InputDescriptors::RevokedOutput, amount: outp.value, htlc: None, on_remote_tx_csv: self.remote_tx_cache.on_remote_tx_csv};
+ claimable_outpoints.push(ClaimRequest { absolute_timelock: height + self.remote_tx_cache.on_remote_tx_csv as u32, aggregable: true, outpoint: BitcoinOutPoint { txid: commitment_txid, vout: idx as u32 }, witness_data});
}
}
if let Some(ref per_commitment_data) = per_commitment_option {
for (_, &(ref htlc, _)) in per_commitment_data.iter().enumerate() {
if let Some(transaction_output_index) = htlc.transaction_output_index {
- let expected_script = chan_utils::get_htlc_redeemscript_with_explicit_keys(&htlc, &a_htlc_key, &b_htlc_key, &revocation_pubkey);
if transaction_output_index as usize >= tx.output.len() ||
- tx.output[transaction_output_index as usize].value != htlc.amount_msat / 1000 ||
- tx.output[transaction_output_index as usize].script_pubkey != expected_script.to_v0_p2wsh() {
+ tx.output[transaction_output_index as usize].value != htlc.amount_msat / 1000 {
return (claimable_outpoints, (commitment_txid, watch_outputs)); // Corrupted per_commitment_data, fuck this user
}
- let witness_data = InputMaterial::Revoked { witness_script: expected_script, pubkey: Some(revocation_pubkey), key: revocation_key, is_htlc: true, amount: tx.output[transaction_output_index as usize].value };
+ let witness_data = InputMaterial::Revoked { per_commitment_point, remote_delayed_payment_base_key: self.remote_tx_cache.remote_delayed_payment_base_key, remote_htlc_base_key: self.remote_tx_cache.remote_htlc_base_key, per_commitment_key, input_descriptor: if htlc.offered { InputDescriptors::RevokedOfferedHTLC } else { InputDescriptors::RevokedReceivedHTLC }, amount: tx.output[transaction_output_index as usize].value, htlc: Some(htlc.clone()), on_remote_tx_csv: self.remote_tx_cache.on_remote_tx_csv};
claimable_outpoints.push(ClaimRequest { absolute_timelock: htlc.cltv_expiry, aggregable: true, outpoint: BitcoinOutPoint { txid: commitment_txid, vout: transaction_output_index }, witness_data });
}
}
if revocation_points.0 == commitment_number + 1 { Some(point) } else { None }
} else { None };
if let Some(revocation_point) = revocation_point_option {
- let revocation_pubkey = ignore_error!(chan_utils::derive_public_revocation_key(&self.secp_ctx, revocation_point, &self.keys.pubkeys().revocation_basepoint));
- let b_htlc_key = ignore_error!(chan_utils::derive_public_key(&self.secp_ctx, revocation_point, &self.keys.pubkeys().htlc_basepoint));
- let htlc_privkey = ignore_error!(chan_utils::derive_private_key(&self.secp_ctx, revocation_point, &self.keys.htlc_base_key()));
- let a_htlc_key = ignore_error!(chan_utils::derive_public_key(&self.secp_ctx, revocation_point, &self.their_htlc_base_key));
+ self.remote_payment_script = {
+ // Note that the Network here is ignored as we immediately drop the address for the
+ // script_pubkey version
+ let payment_hash160 = WPubkeyHash::hash(&self.keys.pubkeys().payment_point.serialize());
+ Builder::new().push_opcode(opcodes::all::OP_PUSHBYTES_0).push_slice(&payment_hash160[..]).into_script()
+ };
// Then, try to find htlc outputs
for (_, &(ref htlc, _)) in per_commitment_data.iter().enumerate() {
if let Some(transaction_output_index) = htlc.transaction_output_index {
- let expected_script = chan_utils::get_htlc_redeemscript_with_explicit_keys(&htlc, &a_htlc_key, &b_htlc_key, &revocation_pubkey);
if transaction_output_index as usize >= tx.output.len() ||
- tx.output[transaction_output_index as usize].value != htlc.amount_msat / 1000 ||
- tx.output[transaction_output_index as usize].script_pubkey != expected_script.to_v0_p2wsh() {
+ tx.output[transaction_output_index as usize].value != htlc.amount_msat / 1000 {
return (claimable_outpoints, (commitment_txid, watch_outputs)); // Corrupted per_commitment_data, fuck this user
}
let preimage = if htlc.offered { if let Some(p) = self.payment_preimages.get(&htlc.payment_hash) { Some(*p) } else { None } } else { None };
let aggregable = if !htlc.offered { false } else { true };
if preimage.is_some() || !htlc.offered {
- let witness_data = InputMaterial::RemoteHTLC { witness_script: expected_script, key: htlc_privkey, preimage, amount: htlc.amount_msat / 1000, locktime: htlc.cltv_expiry };
+ let witness_data = InputMaterial::RemoteHTLC { per_commitment_point: *revocation_point, remote_delayed_payment_base_key: self.remote_tx_cache.remote_delayed_payment_base_key, remote_htlc_base_key: self.remote_tx_cache.remote_htlc_base_key, preimage, htlc: htlc.clone() };
claimable_outpoints.push(ClaimRequest { absolute_timelock: htlc.cltv_expiry, aggregable, outpoint: BitcoinOutPoint { txid: commitment_txid, vout: transaction_output_index }, witness_data });
}
}
let secret = if let Some(secret) = self.get_secret(commitment_number) { secret } else { return (Vec::new(), None); };
let per_commitment_key = ignore_error!(SecretKey::from_slice(&secret));
let per_commitment_point = PublicKey::from_secret_key(&self.secp_ctx, &per_commitment_key);
- let revocation_pubkey = ignore_error!(chan_utils::derive_public_revocation_key(&self.secp_ctx, &per_commitment_point, &self.keys.pubkeys().revocation_basepoint));
- let revocation_key = ignore_error!(chan_utils::derive_private_revocation_key(&self.secp_ctx, &per_commitment_key, &self.keys.revocation_base_key()));
- let delayed_key = ignore_error!(chan_utils::derive_public_key(&self.secp_ctx, &per_commitment_point, &self.their_delayed_payment_base_key));
- let redeemscript = chan_utils::get_revokeable_redeemscript(&revocation_pubkey, self.our_to_self_delay, &delayed_key);
log_trace!(logger, "Remote HTLC broadcast {}:{}", htlc_txid, 0);
- let witness_data = InputMaterial::Revoked { witness_script: redeemscript, pubkey: Some(revocation_pubkey), key: revocation_key, is_htlc: false, amount: tx.output[0].value };
- let claimable_outpoints = vec!(ClaimRequest { absolute_timelock: height + self.our_to_self_delay as u32, aggregable: true, outpoint: BitcoinOutPoint { txid: htlc_txid, vout: 0}, witness_data });
+ let witness_data = InputMaterial::Revoked { per_commitment_point, remote_delayed_payment_base_key: self.remote_tx_cache.remote_delayed_payment_base_key, remote_htlc_base_key: self.remote_tx_cache.remote_htlc_base_key, per_commitment_key, input_descriptor: InputDescriptors::RevokedOutput, amount: tx.output[0].value, htlc: None, on_remote_tx_csv: self.remote_tx_cache.on_remote_tx_csv };
+ let claimable_outpoints = vec!(ClaimRequest { absolute_timelock: height + self.remote_tx_cache.on_remote_tx_csv as u32, aggregable: true, outpoint: BitcoinOutPoint { txid: htlc_txid, vout: 0}, witness_data });
(claimable_outpoints, Some((htlc_txid, tx.output.clone())))
}
- fn broadcast_by_local_state(&self, commitment_tx: &Transaction, local_tx: &LocalSignedTx) -> (Vec<ClaimRequest>, Vec<TxOut>, Option<(Script, SecretKey, Script)>) {
+ fn broadcast_by_local_state(&self, commitment_tx: &Transaction, local_tx: &LocalSignedTx) -> (Vec<ClaimRequest>, Vec<TxOut>, Option<(Script, PublicKey, PublicKey)>) {
let mut claim_requests = Vec::with_capacity(local_tx.htlc_outputs.len());
let mut watch_outputs = Vec::with_capacity(local_tx.htlc_outputs.len());
- let redeemscript = chan_utils::get_revokeable_redeemscript(&local_tx.revocation_key, self.their_to_self_delay, &local_tx.delayed_payment_key);
- let broadcasted_local_revokable_script = if let Ok(local_delayedkey) = chan_utils::derive_private_key(&self.secp_ctx, &local_tx.per_commitment_point, self.keys.delayed_payment_base_key()) {
- Some((redeemscript.to_v0_p2wsh(), local_delayedkey, redeemscript))
- } else { None };
+ let redeemscript = chan_utils::get_revokeable_redeemscript(&local_tx.revocation_key, self.on_local_tx_csv, &local_tx.delayed_payment_key);
+ let broadcasted_local_revokable_script = Some((redeemscript.to_v0_p2wsh(), local_tx.per_commitment_point.clone(), local_tx.revocation_key.clone()));
for &(ref htlc, _, _) in local_tx.htlc_outputs.iter() {
if let Some(transaction_output_index) = htlc.transaction_output_index {
/// Unsafe test-only version of get_latest_local_commitment_txn used by our test framework
/// to bypass LocalCommitmentTransaction state update lockdown after signature and generate
/// revoked commitment transaction.
- #[cfg(test)]
+ #[cfg(any(test,feature = "unsafe_revoked_tx_signing"))]
pub fn unsafe_get_latest_local_commitment_txn<L: Deref>(&mut self, logger: &L) -> Vec<Transaction> where L::Target: Logger {
log_trace!(logger, "Getting signed copy of latest local commitment transaction!");
if let Some(commitment_tx) = self.onchain_tx_handler.get_fully_signed_copy_local_tx(&self.funding_redeemscript) {
claimable_outpoints.push(ClaimRequest { absolute_timelock: height, aggregable: false, outpoint: BitcoinOutPoint { txid: self.funding_info.0.txid.clone(), vout: self.funding_info.0.index as u32 }, witness_data: InputMaterial::Funding { funding_redeemscript: self.funding_redeemscript.clone() }});
}
if should_broadcast {
+ self.pending_monitor_events.push(MonitorEvent::CommitmentTxBroadcasted(self.funding_info.0));
if let Some(commitment_tx) = self.onchain_tx_handler.get_fully_signed_local_tx(&self.funding_redeemscript) {
+ self.local_tx_signed = true;
let (mut new_outpoints, new_outputs, _) = self.broadcast_by_local_state(&commitment_tx, &self.current_local_commitment_tx);
if !new_outputs.is_empty() {
watch_outputs.push((self.current_local_commitment_tx.txid.clone(), new_outputs));
match ev {
OnchainEvent::HTLCUpdate { htlc_update } => {
log_trace!(logger, "HTLC {} failure update has got enough confirmations to be passed upstream", log_bytes!((htlc_update.1).0));
- self.pending_htlcs_updated.push(HTLCUpdate {
+ self.pending_monitor_events.push(MonitorEvent::HTLCEvent(HTLCUpdate {
payment_hash: htlc_update.1,
payment_preimage: None,
source: htlc_update.0,
- });
+ }));
},
OnchainEvent::MaturingOutput { descriptor } => {
log_trace!(logger, "Descriptor {} has got enough confirmations to be passed upstream", log_spendable!(descriptor));
- self.pending_events.push(events::Event::SpendableOutputs {
+ self.pending_events.push(Event::SpendableOutputs {
outputs: vec![descriptor]
});
}
}
}
}
+
self.onchain_tx_handler.block_connected(txn_matched, claimable_outpoints, height, &*broadcaster, &*fee_estimator, &*logger);
self.last_block_hash = block_hash.clone();
self.last_block_hash = block_hash.clone();
}
- pub(super) fn would_broadcast_at_height<L: Deref>(&self, height: u32, logger: &L) -> bool where L::Target: Logger {
+ fn would_broadcast_at_height<L: Deref>(&self, height: u32, logger: &L) -> bool where L::Target: Logger {
// We need to consider all HTLCs which are:
// * in any unrevoked remote commitment transaction, as they could broadcast said
// transactions and we'd end up in a race, or
if let Some((source, payment_hash)) = payment_data {
let mut payment_preimage = PaymentPreimage([0; 32]);
if accepted_preimage_claim {
- if !self.pending_htlcs_updated.iter().any(|update| update.source == source) {
+ if !self.pending_monitor_events.iter().any(
+ |update| if let &MonitorEvent::HTLCEvent(ref upd) = update { upd.source == source } else { false }) {
payment_preimage.0.copy_from_slice(&input.witness[3]);
- self.pending_htlcs_updated.push(HTLCUpdate {
+ self.pending_monitor_events.push(MonitorEvent::HTLCEvent(HTLCUpdate {
source,
payment_preimage: Some(payment_preimage),
payment_hash
- });
+ }));
}
} else if offered_preimage_claim {
- if !self.pending_htlcs_updated.iter().any(|update| update.source == source) {
+ if !self.pending_monitor_events.iter().any(
+ |update| if let &MonitorEvent::HTLCEvent(ref upd) = update {
+ upd.source == source
+ } else { false }) {
payment_preimage.0.copy_from_slice(&input.witness[1]);
- self.pending_htlcs_updated.push(HTLCUpdate {
+ self.pending_monitor_events.push(MonitorEvent::HTLCEvent(HTLCUpdate {
source,
payment_preimage: Some(payment_preimage),
payment_hash
- });
+ }));
}
} else {
log_info!(logger, "Failing HTLC with payment_hash {} timeout by a spend tx, waiting for confirmation (at height{})", log_bytes!(payment_hash.0), height + ANTI_REORG_DELAY - 1);
fn is_paying_spendable_output<L: Deref>(&mut self, tx: &Transaction, height: u32, logger: &L) where L::Target: Logger {
let mut spendable_output = None;
for (i, outp) in tx.output.iter().enumerate() { // There is max one spendable output for any channel tx, including ones generated by us
+ if i > ::std::u16::MAX as usize {
+ // While it is possible that an output exists on chain which is greater than the
+ // 2^16th output in a given transaction, this is only possible if the output is not
+ // in a lightning transaction and was instead placed there by some third party who
+ // wishes to give us money for no reason.
+ // Namely, any lightning transactions which we pre-sign will never have anywhere
+ // near 2^16 outputs both because such transactions must have ~2^16 outputs who's
+ // scripts are not longer than one byte in length and because they are inherently
+ // non-standard due to their size.
+ // Thus, it is completely safe to ignore such outputs, and while it may result in
+ // us ignoring non-lightning fund to us, that is only possible if someone fills
+ // nearly a full block with garbage just to hit this case.
+ continue;
+ }
if outp.script_pubkey == self.destination_script {
spendable_output = Some(SpendableOutputDescriptor::StaticOutput {
- outpoint: BitcoinOutPoint { txid: tx.txid(), vout: i as u32 },
+ outpoint: OutPoint { txid: tx.txid(), index: i as u16 },
output: outp.clone(),
});
break;
} else if let Some(ref broadcasted_local_revokable_script) = self.broadcasted_local_revokable_script {
if broadcasted_local_revokable_script.0 == outp.script_pubkey {
spendable_output = Some(SpendableOutputDescriptor::DynamicOutputP2WSH {
- outpoint: BitcoinOutPoint { txid: tx.txid(), vout: i as u32 },
- key: broadcasted_local_revokable_script.1,
- witness_script: broadcasted_local_revokable_script.2.clone(),
- to_self_delay: self.their_to_self_delay,
+ outpoint: OutPoint { txid: tx.txid(), index: i as u16 },
+ per_commitment_point: broadcasted_local_revokable_script.1,
+ to_self_delay: self.on_local_tx_csv,
output: outp.clone(),
+ key_derivation_params: self.keys.key_derivation_params(),
+ remote_revocation_pubkey: broadcasted_local_revokable_script.2.clone(),
});
break;
}
} else if self.remote_payment_script == outp.script_pubkey {
- spendable_output = Some(SpendableOutputDescriptor::DynamicOutputP2WPKH {
- outpoint: BitcoinOutPoint { txid: tx.txid(), vout: i as u32 },
- key: self.keys.payment_key().clone(),
+ spendable_output = Some(SpendableOutputDescriptor::StaticOutputRemotePayment {
+ outpoint: OutPoint { txid: tx.txid(), index: i as u16 },
output: outp.clone(),
+ key_derivation_params: self.keys.key_derivation_params(),
});
break;
} else if outp.script_pubkey == self.shutdown_script {
spendable_output = Some(SpendableOutputDescriptor::StaticOutput {
- outpoint: BitcoinOutPoint { txid: tx.txid(), vout: i as u32 },
+ outpoint: OutPoint { txid: tx.txid(), index: i as u16 },
output: outp.clone(),
});
}
let broadcasted_local_revokable_script = match <u8 as Readable>::read(reader)? {
0 => {
let revokable_address = Readable::read(reader)?;
- let local_delayedkey = Readable::read(reader)?;
+ let per_commitment_point = Readable::read(reader)?;
let revokable_script = Readable::read(reader)?;
- Some((revokable_address, local_delayedkey, revokable_script))
+ Some((revokable_address, per_commitment_point, revokable_script))
},
1 => { None },
_ => return Err(DecodeError::InvalidValue),
let current_remote_commitment_txid = Readable::read(reader)?;
let prev_remote_commitment_txid = Readable::read(reader)?;
- let their_htlc_base_key = Readable::read(reader)?;
- let their_delayed_payment_base_key = Readable::read(reader)?;
+ let remote_tx_cache = Readable::read(reader)?;
let funding_redeemscript = Readable::read(reader)?;
let channel_value_satoshis = Readable::read(reader)?;
}
};
- let our_to_self_delay: u16 = Readable::read(reader)?;
- let their_to_self_delay: u16 = Readable::read(reader)?;
+ let on_local_tx_csv: u16 = Readable::read(reader)?;
let commitment_secrets = Readable::read(reader)?;
let b_htlc_key = Readable::read(reader)?;
let delayed_payment_key = Readable::read(reader)?;
let per_commitment_point = Readable::read(reader)?;
- let feerate_per_kw: u64 = Readable::read(reader)?;
+ let feerate_per_kw: u32 = Readable::read(reader)?;
let htlcs_len: u64 = Readable::read(reader)?;
let mut htlcs = Vec::with_capacity(cmp::min(htlcs_len as usize, MAX_ALLOC_SIZE / 128));
}
}
- let pending_htlcs_updated_len: u64 = Readable::read(reader)?;
- let mut pending_htlcs_updated = Vec::with_capacity(cmp::min(pending_htlcs_updated_len as usize, MAX_ALLOC_SIZE / (32 + 8*3)));
- for _ in 0..pending_htlcs_updated_len {
- pending_htlcs_updated.push(Readable::read(reader)?);
+ let pending_monitor_events_len: u64 = Readable::read(reader)?;
+ let mut pending_monitor_events = Vec::with_capacity(cmp::min(pending_monitor_events_len as usize, MAX_ALLOC_SIZE / (32 + 8*3)));
+ for _ in 0..pending_monitor_events_len {
+ let ev = match <u8 as Readable>::read(reader)? {
+ 0 => MonitorEvent::HTLCEvent(Readable::read(reader)?),
+ 1 => MonitorEvent::CommitmentTxBroadcasted(funding_info.0),
+ _ => return Err(DecodeError::InvalidValue)
+ };
+ pending_monitor_events.push(ev);
}
let pending_events_len: u64 = Readable::read(reader)?;
- let mut pending_events = Vec::with_capacity(cmp::min(pending_events_len as usize, MAX_ALLOC_SIZE / mem::size_of::<events::Event>()));
+ let mut pending_events = Vec::with_capacity(cmp::min(pending_events_len as usize, MAX_ALLOC_SIZE / mem::size_of::<Event>()));
for _ in 0..pending_events_len {
if let Some(event) = MaybeReadable::read(reader)? {
pending_events.push(event);
current_remote_commitment_txid,
prev_remote_commitment_txid,
- their_htlc_base_key,
- their_delayed_payment_base_key,
+ remote_tx_cache,
funding_redeemscript,
channel_value_satoshis,
their_cur_revocation_points,
- our_to_self_delay,
- their_to_self_delay,
+ on_local_tx_csv,
commitment_secrets,
remote_claimable_outpoints,
current_local_commitment_number,
payment_preimages,
- pending_htlcs_updated,
+ pending_monitor_events,
pending_events,
onchain_events_waiting_threshold_conf,
use util::test_utils::TestLogger;
use bitcoin::secp256k1::key::{SecretKey,PublicKey};
use bitcoin::secp256k1::Secp256k1;
- use rand::{thread_rng,Rng};
use std::sync::Arc;
use chain::keysinterface::InMemoryChannelKeys;
let mut preimages = Vec::new();
{
- let mut rng = thread_rng();
- for _ in 0..20 {
- let mut preimage = PaymentPreimage([0; 32]);
- rng.fill_bytes(&mut preimage.0[..]);
+ for i in 0..20 {
+ let preimage = PaymentPreimage([i; 32]);
let hash = PaymentHash(Sha256::hash(&preimage.0[..]).into_inner());
preimages.push((preimage, hash));
}
SecretKey::from_slice(&[41; 32]).unwrap(),
[41; 32],
0,
+ (0, 0)
);
// Prune with one old state and a local commitment tx holding a few overlaps with the
projects / rust-lightning / blobdiff