use bitcoin::blockdata::transaction::OutPoint as BitcoinOutPoint;
use bitcoin::blockdata::script::{Script, Builder};
use bitcoin::blockdata::opcodes;
-use bitcoin::consensus::encode::{self, Decodable, Encodable};
+use bitcoin::consensus::encode;
use bitcoin::util::hash::BitcoinHash;
use bitcoin::util::bip143;
use ln::msgs::DecodeError;
use ln::chan_utils;
-use ln::chan_utils::HTLCOutputInCommitment;
+use ln::chan_utils::{HTLCOutputInCommitment, LocalCommitmentTransaction, HTLCType};
use ln::channelmanager::{HTLCSource, PaymentPreimage, PaymentHash};
-use ln::channel::{ACCEPTED_HTLC_SCRIPT_WEIGHT, OFFERED_HTLC_SCRIPT_WEIGHT};
use chain::chaininterface::{ChainListener, ChainWatchInterface, BroadcasterInterface, FeeEstimator, ConfirmationTarget, MIN_RELAY_FEE_SAT_PER_1000_WEIGHT};
use chain::transaction::OutPoint;
use chain::keysinterface::SpendableOutputDescriptor;
use util::logger::Logger;
-use util::ser::{ReadableArgs, Readable, Writer, Writeable, WriterWriteAdaptor, U48};
+use util::ser::{ReadableArgs, Readable, Writer, Writeable, U48};
use util::{byte_utils, events};
-use std::collections::{HashMap, hash_map};
+use std::collections::{HashMap, hash_map, HashSet};
use std::sync::{Arc,Mutex};
use std::{hash,cmp, mem};
}
impl<'a, Key : Send + cmp::Eq + hash::Hash> ChainListener for SimpleManyChannelMonitor<Key> {
-
fn block_connected(&self, header: &BlockHeader, height: u32, txn_matched: &[&Transaction], _indexes_of_txn_matched: &[u32]) {
let block_hash = header.bitcoin_hash();
let mut new_events: Vec<events::Event> = Vec::with_capacity(0);
impl<Key : Send + cmp::Eq + hash::Hash + 'static> SimpleManyChannelMonitor<Key> {
/// Creates a new object which can be used to monitor several channels given the chain
/// interface with which to register to receive notifications.
- pub fn new(chain_monitor: Arc<ChainWatchInterface>, broadcaster: Arc<BroadcasterInterface>, logger: Arc<Logger>, feeest: Arc<FeeEstimator>) -> Arc<SimpleManyChannelMonitor<Key>> {
- let res = Arc::new(SimpleManyChannelMonitor {
+ pub fn new(chain_monitor: Arc<ChainWatchInterface>, broadcaster: Arc<BroadcasterInterface>, logger: Arc<Logger>, feeest: Arc<FeeEstimator>) -> SimpleManyChannelMonitor<Key> {
+ let res = SimpleManyChannelMonitor {
monitors: Mutex::new(HashMap::new()),
chain_monitor,
broadcaster,
pending_htlc_updated: Mutex::new(HashMap::new()),
logger,
fee_estimator: feeest,
- });
+ };
res
}
#[derive(Clone, PartialEq)]
enum Storage {
Local {
+ funding_key: SecretKey,
revocation_base_key: SecretKey,
htlc_base_key: SecretKey,
delayed_payment_base_key: SecretKey,
payment_base_key: SecretKey,
shutdown_pubkey: PublicKey,
- prev_latest_per_commitment_point: Option<PublicKey>,
- latest_per_commitment_point: Option<PublicKey>,
funding_info: Option<(OutPoint, Script)>,
current_remote_commitment_txid: Option<Sha256dHash>,
prev_remote_commitment_txid: Option<Sha256dHash>,
struct LocalSignedTx {
/// txid of the transaction in tx, just used to make comparison faster
txid: Sha256dHash,
- tx: Transaction,
+ tx: LocalCommitmentTransaction,
revocation_key: PublicKey,
a_htlc_key: PublicKey,
b_htlc_key: PublicKey,
delayed_payment_key: PublicKey,
+ per_commitment_point: PublicKey,
feerate_per_kw: u64,
- htlc_outputs: Vec<(HTLCOutputInCommitment, Option<(Signature, Signature)>, Option<HTLCSource>)>,
+ htlc_outputs: Vec<(HTLCOutputInCommitment, Option<Signature>, Option<HTLCSource>)>,
}
#[derive(PartialEq)]
/// Higher-level cache structure needed to re-generate bumped claim txn if needed
#[derive(Clone, PartialEq)]
-struct ClaimTxBumpMaterial {
+pub struct ClaimTxBumpMaterial {
// At every block tick, used to check if pending claiming tx is taking too
// much time for confirmation and we need to bump it.
height_timer: u32,
key_storage: Storage,
their_htlc_base_key: Option<PublicKey>,
their_delayed_payment_base_key: Option<PublicKey>,
+ funding_redeemscript: Option<Script>,
+ channel_value_satoshis: Option<u64>,
// first is the idx of the first of the two revocation points
their_cur_revocation_points: Option<(u64, PublicKey, Option<PublicKey>)>,
// Key is identifier of the pending claim request, i.e the txid of the initial claiming transaction generated by
// us and is immutable until all outpoint of the claimable set are post-anti-reorg-delay solved.
// Entry is cache of elements need to generate a bumped claiming transaction (see ClaimTxBumpMaterial)
+ #[cfg(test)] // Used in functional_test to verify sanitization
+ pub pending_claim_requests: HashMap<Sha256dHash, ClaimTxBumpMaterial>,
+ #[cfg(not(test))]
pending_claim_requests: HashMap<Sha256dHash, ClaimTxBumpMaterial>,
// Used to link outpoints claimed in a connected block to a pending claim request.
// is txid of the initial claiming transaction and is immutable until outpoint is
// post-anti-reorg-delay solved, confirmaiton_block is used to erase entry if
// block with output gets disconnected.
+ #[cfg(test)] // Used in functional_test to verify sanitization
+ pub claimable_outpoints: HashMap<BitcoinOutPoint, (Sha256dHash, u32)>,
+ #[cfg(not(test))]
claimable_outpoints: HashMap<BitcoinOutPoint, (Sha256dHash, u32)>,
// Used to track onchain events, i.e transactions parts of channels confirmed on chain, on which
self.key_storage != other.key_storage ||
self.their_htlc_base_key != other.their_htlc_base_key ||
self.their_delayed_payment_base_key != other.their_delayed_payment_base_key ||
+ 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 ||
}
impl ChannelMonitor {
- pub(super) fn new(revocation_base_key: &SecretKey, delayed_payment_base_key: &SecretKey, htlc_base_key: &SecretKey, payment_base_key: &SecretKey, shutdown_pubkey: &PublicKey, our_to_self_delay: u16, destination_script: Script, logger: Arc<Logger>) -> ChannelMonitor {
+ pub(super) fn new(funding_key: &SecretKey, revocation_base_key: &SecretKey, delayed_payment_base_key: &SecretKey, htlc_base_key: &SecretKey, payment_base_key: &SecretKey, shutdown_pubkey: &PublicKey, our_to_self_delay: u16, destination_script: Script, logger: Arc<Logger>) -> ChannelMonitor {
ChannelMonitor {
commitment_transaction_number_obscure_factor: 0,
key_storage: Storage::Local {
+ funding_key: funding_key.clone(),
revocation_base_key: revocation_base_key.clone(),
htlc_base_key: htlc_base_key.clone(),
delayed_payment_base_key: delayed_payment_base_key.clone(),
payment_base_key: payment_base_key.clone(),
shutdown_pubkey: shutdown_pubkey.clone(),
- prev_latest_per_commitment_point: None,
- latest_per_commitment_point: None,
funding_info: None,
current_remote_commitment_txid: None,
prev_remote_commitment_txid: None,
},
their_htlc_base_key: None,
their_delayed_payment_base_key: None,
+ funding_redeemscript: None,
+ channel_value_satoshis: None,
their_cur_revocation_points: None,
our_to_self_delay: our_to_self_delay,
/// 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.
- /// Also update Storage with latest local per_commitment_point to derive local_delayedkey in
- /// case of onchain HTLC tx
- pub(super) fn provide_latest_local_commitment_tx_info(&mut self, signed_commitment_tx: Transaction, local_keys: chan_utils::TxCreationKeys, feerate_per_kw: u64, htlc_outputs: Vec<(HTLCOutputInCommitment, Option<(Signature, Signature)>, Option<HTLCSource>)>) {
+ pub(super) fn provide_latest_local_commitment_tx_info(&mut self, commitment_tx: LocalCommitmentTransaction, local_keys: chan_utils::TxCreationKeys, feerate_per_kw: u64, htlc_outputs: Vec<(HTLCOutputInCommitment, Option<Signature>, Option<HTLCSource>)>) {
assert!(self.their_to_self_delay.is_some());
self.prev_local_signed_commitment_tx = self.current_local_signed_commitment_tx.take();
self.current_local_signed_commitment_tx = Some(LocalSignedTx {
- txid: signed_commitment_tx.txid(),
- tx: signed_commitment_tx,
+ txid: commitment_tx.txid(),
+ tx: commitment_tx,
revocation_key: local_keys.revocation_key,
a_htlc_key: local_keys.a_htlc_key,
b_htlc_key: local_keys.b_htlc_key,
delayed_payment_key: local_keys.a_delayed_payment_key,
+ per_commitment_point: local_keys.per_commitment_point,
feerate_per_kw,
htlc_outputs,
});
-
- if let Storage::Local { ref mut latest_per_commitment_point, .. } = self.key_storage {
- *latest_per_commitment_point = Some(local_keys.per_commitment_point);
- } else {
- panic!("Channel somehow ended up with its internal ChannelMonitor being in Watchtower mode?");
- }
}
/// Provides a payment_hash->payment_preimage mapping. Will be automatically pruned when all
}
if let Some(ref local_tx) = self.current_local_signed_commitment_tx {
if let Some(ref other_local_tx) = other.current_local_signed_commitment_tx {
- let our_commitment_number = 0xffffffffffff - ((((local_tx.tx.input[0].sequence as u64 & 0xffffff) << 3*8) | (local_tx.tx.lock_time as u64 & 0xffffff)) ^ self.commitment_transaction_number_obscure_factor);
- let other_commitment_number = 0xffffffffffff - ((((other_local_tx.tx.input[0].sequence as u64 & 0xffffff) << 3*8) | (other_local_tx.tx.lock_time as u64 & 0xffffff)) ^ other.commitment_transaction_number_obscure_factor);
+ let our_commitment_number = 0xffffffffffff - ((((local_tx.tx.without_valid_witness().input[0].sequence as u64 & 0xffffff) << 3*8) | (local_tx.tx.without_valid_witness().lock_time as u64 & 0xffffff)) ^ self.commitment_transaction_number_obscure_factor);
+ let other_commitment_number = 0xffffffffffff - ((((other_local_tx.tx.without_valid_witness().input[0].sequence as u64 & 0xffffff) << 3*8) | (other_local_tx.tx.without_valid_witness().lock_time as u64 & 0xffffff)) ^ other.commitment_transaction_number_obscure_factor);
if our_commitment_number >= other_commitment_number {
self.key_storage = other.key_storage;
}
Ok(())
}
- /// Panics if commitment_transaction_number_obscure_factor doesn't fit in 48 bits
- pub(super) fn set_commitment_obscure_factor(&mut self, commitment_transaction_number_obscure_factor: u64) {
- assert!(commitment_transaction_number_obscure_factor < (1 << 48));
- self.commitment_transaction_number_obscure_factor = commitment_transaction_number_obscure_factor;
- }
-
/// Allows this monitor to scan only for transactions which are applicable. Note that this is
/// optional, without it this monitor cannot be used in an SPV client, but you may wish to
/// avoid this (or call unset_funding_info) on a monitor you wish to send to a watchtower as it
}
/// We log these base keys at channel opening to being able to rebuild redeemscript in case of leaked revoked commit tx
- pub(super) fn set_their_base_keys(&mut self, their_htlc_base_key: &PublicKey, their_delayed_payment_base_key: &PublicKey) {
+ /// Panics if commitment_transaction_number_obscure_factor doesn't fit in 48 bits
+ pub(super) fn set_basic_channel_info(&mut self, their_htlc_base_key: &PublicKey, their_delayed_payment_base_key: &PublicKey, their_to_self_delay: u16, funding_redeemscript: Script, channel_value_satoshis: u64, commitment_transaction_number_obscure_factor: u64) {
self.their_htlc_base_key = Some(their_htlc_base_key.clone());
self.their_delayed_payment_base_key = Some(their_delayed_payment_base_key.clone());
- }
-
- pub(super) fn set_their_to_self_delay(&mut self, their_to_self_delay: u16) {
self.their_to_self_delay = Some(their_to_self_delay);
+ self.funding_redeemscript = Some(funding_redeemscript);
+ self.channel_value_satoshis = Some(channel_value_satoshis);
+ assert!(commitment_transaction_number_obscure_factor < (1 << 48));
+ self.commitment_transaction_number_obscure_factor = commitment_transaction_number_obscure_factor;
}
pub(super) fn unset_funding_info(&mut self) {
}
match self.key_storage {
- Storage::Local { ref revocation_base_key, ref htlc_base_key, ref delayed_payment_base_key, ref payment_base_key, ref shutdown_pubkey, ref prev_latest_per_commitment_point, ref latest_per_commitment_point, ref funding_info, ref current_remote_commitment_txid, ref prev_remote_commitment_txid } => {
+ Storage::Local { ref funding_key, ref revocation_base_key, ref htlc_base_key, ref delayed_payment_base_key, ref payment_base_key, ref shutdown_pubkey, ref funding_info, ref current_remote_commitment_txid, ref prev_remote_commitment_txid } => {
writer.write_all(&[0; 1])?;
+ writer.write_all(&funding_key[..])?;
writer.write_all(&revocation_base_key[..])?;
writer.write_all(&htlc_base_key[..])?;
writer.write_all(&delayed_payment_base_key[..])?;
writer.write_all(&payment_base_key[..])?;
writer.write_all(&shutdown_pubkey.serialize())?;
- prev_latest_per_commitment_point.write(writer)?;
- latest_per_commitment_point.write(writer)?;
match funding_info {
&Some((ref outpoint, ref script)) => {
writer.write_all(&outpoint.txid[..])?;
writer.write_all(&self.their_htlc_base_key.as_ref().unwrap().serialize())?;
writer.write_all(&self.their_delayed_payment_base_key.as_ref().unwrap().serialize())?;
+ self.funding_redeemscript.as_ref().unwrap().write(writer)?;
+ self.channel_value_satoshis.unwrap().write(writer)?;
match self.their_cur_revocation_points {
Some((idx, pubkey, second_option)) => {
macro_rules! serialize_local_tx {
($local_tx: expr) => {
- if let Err(e) = $local_tx.tx.consensus_encode(&mut WriterWriteAdaptor(writer)) {
- match e {
- encode::Error::Io(e) => return Err(e),
- _ => panic!("local tx must have been well-formed!"),
- }
- }
-
+ $local_tx.tx.write(writer)?;
writer.write_all(&$local_tx.revocation_key.serialize())?;
writer.write_all(&$local_tx.a_htlc_key.serialize())?;
writer.write_all(&$local_tx.b_htlc_key.serialize())?;
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($local_tx.feerate_per_kw))?;
writer.write_all(&byte_utils::be64_to_array($local_tx.htlc_outputs.len() as u64))?;
- for &(ref htlc_output, ref sigs, ref htlc_source) in $local_tx.htlc_outputs.iter() {
+ for &(ref htlc_output, ref sig, ref htlc_source) in $local_tx.htlc_outputs.iter() {
serialize_htlc_in_commitment!(htlc_output);
- if let &Some((ref their_sig, ref our_sig)) = sigs {
+ if let &Some(ref their_sig) = sig {
1u8.write(writer)?;
writer.write_all(&their_sig.serialize_compact())?;
- writer.write_all(&our_sig.serialize_compact())?;
} else {
0u8.write(writer)?;
}
pub(super) fn get_cur_local_commitment_number(&self) -> u64 {
if let &Some(ref local_tx) = &self.current_local_signed_commitment_tx {
- 0xffff_ffff_ffff - ((((local_tx.tx.input[0].sequence as u64 & 0xffffff) << 3*8) | (local_tx.tx.lock_time as u64 & 0xffffff)) ^ self.commitment_transaction_number_obscure_factor)
+ 0xffff_ffff_ffff - ((((local_tx.tx.without_valid_witness().input[0].sequence as u64 & 0xffffff) << 3*8) | (local_tx.tx.without_valid_witness().lock_time as u64 & 0xffffff)) ^ self.commitment_transaction_number_obscure_factor)
} else { 0xffff_ffff_ffff }
}
let mut inputs_info = Vec::new();
macro_rules! sign_input {
- ($sighash_parts: expr, $input: expr, $amount: expr, $preimage: expr) => {
+ ($sighash_parts: expr, $input: expr, $amount: expr, $preimage: expr, $idx: expr) => {
{
let (sig, redeemscript, htlc_key) = match self.key_storage {
Storage::Local { ref htlc_base_key, .. } => {
- let htlc = &per_commitment_option.unwrap()[$input.sequence as usize].0;
+ let htlc = &per_commitment_option.unwrap()[$idx as usize].0;
let redeemscript = chan_utils::get_htlc_redeemscript_with_explicit_keys(htlc, &a_htlc_key, &b_htlc_key, &revocation_pubkey);
let sighash = hash_to_message!(&$sighash_parts.sighash_all(&$input, &redeemscript, $amount)[..]);
let htlc_key = ignore_error!(chan_utils::derive_private_key(&self.secp_ctx, revocation_point, &htlc_base_key));
}
if let Some(payment_preimage) = self.payment_preimages.get(&htlc.payment_hash) {
if htlc.offered {
- let input = TxIn {
+ let mut input = TxIn {
previous_output: BitcoinOutPoint {
txid: commitment_txid,
vout: transaction_output_index,
},
script_sig: Script::new(),
- sequence: idx as u32, // reset to 0xfffffffd in sign_input
+ sequence: 0xff_ff_ff_fd,
witness: Vec::new(),
};
if htlc.cltv_expiry > height + CLTV_SHARED_CLAIM_BUFFER {
inputs.push(input);
inputs_desc.push(if htlc.offered { InputDescriptors::OfferedHTLC } else { InputDescriptors::ReceivedHTLC });
- inputs_info.push((payment_preimage, tx.output[transaction_output_index as usize].value, htlc.cltv_expiry));
+ inputs_info.push((payment_preimage, tx.output[transaction_output_index as usize].value, htlc.cltv_expiry, idx));
total_value += tx.output[transaction_output_index as usize].value;
} else {
let mut single_htlc_tx = Transaction {
let mut used_feerate;
if subtract_high_prio_fee!(self, fee_estimator, single_htlc_tx.output[0].value, predicted_weight, used_feerate) {
let sighash_parts = bip143::SighashComponents::new(&single_htlc_tx);
- let (redeemscript, htlc_key) = sign_input!(sighash_parts, single_htlc_tx.input[0], htlc.amount_msat / 1000, payment_preimage.0.to_vec());
+ let (redeemscript, htlc_key) = sign_input!(sighash_parts, single_htlc_tx.input[0], htlc.amount_msat / 1000, payment_preimage.0.to_vec(), idx);
assert!(predicted_weight >= single_htlc_tx.get_weight());
spendable_outputs.push(SpendableOutputDescriptor::StaticOutput {
outpoint: BitcoinOutPoint { txid: single_htlc_tx.txid(), vout: 0 },
vout: transaction_output_index,
},
script_sig: Script::new(),
- sequence: idx as u32,
+ sequence: 0xff_ff_ff_fd,
witness: Vec::new(),
};
let mut timeout_tx = Transaction {
let mut used_feerate;
if subtract_high_prio_fee!(self, fee_estimator, timeout_tx.output[0].value, predicted_weight, used_feerate) {
let sighash_parts = bip143::SighashComponents::new(&timeout_tx);
- let (redeemscript, htlc_key) = sign_input!(sighash_parts, timeout_tx.input[0], htlc.amount_msat / 1000, vec![0]);
+ let (redeemscript, htlc_key) = sign_input!(sighash_parts, timeout_tx.input[0], htlc.amount_msat / 1000, vec![0], idx);
assert!(predicted_weight >= timeout_tx.get_weight());
//TODO: track SpendableOutputDescriptor
log_trace!(self, "Outpoint {}:{} is being being claimed, if it doesn't succeed, a bumped claiming txn is going to be broadcast at height {}", timeout_tx.input[0].previous_output.txid, timeout_tx.input[0].previous_output.vout, height_timer);
let height_timer = Self::get_height_timer(height, soonest_timelock);
let spend_txid = spend_tx.txid();
for (input, info) in spend_tx.input.iter_mut().zip(inputs_info.iter()) {
- let (redeemscript, htlc_key) = sign_input!(sighash_parts, input, info.1, (info.0).0.to_vec());
+ let (redeemscript, htlc_key) = sign_input!(sighash_parts, input, info.1, (info.0).0.to_vec(), info.3);
log_trace!(self, "Outpoint {}:{} is being being claimed, if it doesn't succeed, a bumped claiming txn is going to be broadcast at height {}", input.previous_output.txid, input.previous_output.vout, height_timer);
per_input_material.insert(input.previous_output, InputMaterial::RemoteHTLC { script: redeemscript, key: htlc_key, preimage: Some(*(info.0)), amount: info.1, locktime: 0});
match self.claimable_outpoints.entry(input.previous_output) {
assert!(predicted_weight >= spend_tx.get_weight());
let outpoint = BitcoinOutPoint { txid: spend_tx.txid(), vout: 0 };
let output = spend_tx.output[0].clone();
- let height_timer = Self::get_height_timer(height, self.their_to_self_delay.unwrap() as u32); // We can safely unwrap given we are past channel opening
+ let height_timer = Self::get_height_timer(height, height + self.our_to_self_delay as u32);
log_trace!(self, "Outpoint {}:{} is being being claimed, if it doesn't succeed, a bumped claiming txn is going to be broadcast at height {}", spend_tx.input[0].previous_output.txid, spend_tx.input[0].previous_output.vout, height_timer);
let mut per_input_material = HashMap::with_capacity(1);
per_input_material.insert(spend_tx.input[0].previous_output, InputMaterial::Revoked { script: redeemscript, pubkey: None, key: revocation_key, is_htlc: false, amount: tx.output[0].value });
} else { (None, None) }
}
- fn broadcast_by_local_state(&self, local_tx: &LocalSignedTx, per_commitment_point: &Option<PublicKey>, delayed_payment_base_key: &Option<SecretKey>, height: u32) -> (Vec<Transaction>, Vec<SpendableOutputDescriptor>, Vec<TxOut>, Vec<(Sha256dHash, ClaimTxBumpMaterial)>) {
+ fn broadcast_by_local_state(&self, local_tx: &LocalSignedTx, delayed_payment_base_key: &SecretKey, height: u32) -> (Vec<Transaction>, Vec<SpendableOutputDescriptor>, Vec<TxOut>, Vec<(Sha256dHash, ClaimTxBumpMaterial)>) {
let mut res = Vec::with_capacity(local_tx.htlc_outputs.len());
let mut spendable_outputs = Vec::with_capacity(local_tx.htlc_outputs.len());
let mut watch_outputs = Vec::with_capacity(local_tx.htlc_outputs.len());
macro_rules! add_dynamic_output {
($father_tx: expr, $vout: expr) => {
- if let Some(ref per_commitment_point) = *per_commitment_point {
- if let Some(ref delayed_payment_base_key) = *delayed_payment_base_key {
- if let Ok(local_delayedkey) = chan_utils::derive_private_key(&self.secp_ctx, per_commitment_point, delayed_payment_base_key) {
- spendable_outputs.push(SpendableOutputDescriptor::DynamicOutputP2WSH {
- outpoint: BitcoinOutPoint { txid: $father_tx.txid(), vout: $vout },
- key: local_delayedkey,
- witness_script: chan_utils::get_revokeable_redeemscript(&local_tx.revocation_key, self.our_to_self_delay, &local_tx.delayed_payment_key),
- to_self_delay: self.our_to_self_delay,
- output: $father_tx.output[$vout as usize].clone(),
- });
- }
- }
+ if let Ok(local_delayedkey) = chan_utils::derive_private_key(&self.secp_ctx, &local_tx.per_commitment_point, delayed_payment_base_key) {
+ spendable_outputs.push(SpendableOutputDescriptor::DynamicOutputP2WSH {
+ outpoint: BitcoinOutPoint { txid: $father_tx.txid(), vout: $vout },
+ key: local_delayedkey,
+ witness_script: chan_utils::get_revokeable_redeemscript(&local_tx.revocation_key, self.our_to_self_delay, &local_tx.delayed_payment_key),
+ to_self_delay: self.our_to_self_delay,
+ output: $father_tx.output[$vout as usize].clone(),
+ });
}
}
}
let redeemscript = chan_utils::get_revokeable_redeemscript(&local_tx.revocation_key, self.their_to_self_delay.unwrap(), &local_tx.delayed_payment_key);
let revokeable_p2wsh = redeemscript.to_v0_p2wsh();
- for (idx, output) in local_tx.tx.output.iter().enumerate() {
+ for (idx, output) in local_tx.tx.without_valid_witness().output.iter().enumerate() {
if output.script_pubkey == revokeable_p2wsh {
- add_dynamic_output!(local_tx.tx, idx as u32);
+ add_dynamic_output!(local_tx.tx.without_valid_witness(), idx as u32);
break;
}
}
- for &(ref htlc, ref sigs, _) in local_tx.htlc_outputs.iter() {
- if let Some(transaction_output_index) = htlc.transaction_output_index {
- if let &Some((ref their_sig, ref our_sig)) = sigs {
- if htlc.offered {
- log_trace!(self, "Broadcasting HTLC-Timeout transaction against local commitment transactions");
- let mut htlc_timeout_tx = chan_utils::build_htlc_transaction(&local_tx.txid, local_tx.feerate_per_kw, self.their_to_self_delay.unwrap(), htlc, &local_tx.delayed_payment_key, &local_tx.revocation_key);
-
- htlc_timeout_tx.input[0].witness.push(Vec::new()); // First is the multisig dummy
-
- htlc_timeout_tx.input[0].witness.push(their_sig.serialize_der().to_vec());
- htlc_timeout_tx.input[0].witness[1].push(SigHashType::All as u8);
- htlc_timeout_tx.input[0].witness.push(our_sig.serialize_der().to_vec());
- htlc_timeout_tx.input[0].witness[2].push(SigHashType::All as u8);
-
- htlc_timeout_tx.input[0].witness.push(Vec::new());
- let htlc_script = chan_utils::get_htlc_redeemscript_with_explicit_keys(htlc, &local_tx.a_htlc_key, &local_tx.b_htlc_key, &local_tx.revocation_key);
- htlc_timeout_tx.input[0].witness.push(htlc_script.clone().into_bytes());
-
- add_dynamic_output!(htlc_timeout_tx, 0);
- let height_timer = Self::get_height_timer(height, htlc.cltv_expiry);
- let mut per_input_material = HashMap::with_capacity(1);
- per_input_material.insert(htlc_timeout_tx.input[0].previous_output, InputMaterial::LocalHTLC { script: htlc_script, sigs: (*their_sig, *our_sig), preimage: None, amount: htlc.amount_msat / 1000});
- //TODO: with option_simplified_commitment track outpoint too
- log_trace!(self, "Outpoint {}:{} is being being claimed, if it doesn't succeed, a bumped claiming txn is going to be broadcast at height {}", htlc_timeout_tx.input[0].previous_output.vout, htlc_timeout_tx.input[0].previous_output.txid, height_timer);
- pending_claims.push((htlc_timeout_tx.txid(), ClaimTxBumpMaterial { height_timer, feerate_previous: 0, soonest_timelock: htlc.cltv_expiry, per_input_material }));
- res.push(htlc_timeout_tx);
- } else {
- if let Some(payment_preimage) = self.payment_preimages.get(&htlc.payment_hash) {
- log_trace!(self, "Broadcasting HTLC-Success transaction against local commitment transactions");
- let mut htlc_success_tx = chan_utils::build_htlc_transaction(&local_tx.txid, local_tx.feerate_per_kw, self.their_to_self_delay.unwrap(), htlc, &local_tx.delayed_payment_key, &local_tx.revocation_key);
-
- htlc_success_tx.input[0].witness.push(Vec::new()); // First is the multisig dummy
-
- htlc_success_tx.input[0].witness.push(their_sig.serialize_der().to_vec());
- htlc_success_tx.input[0].witness[1].push(SigHashType::All as u8);
- htlc_success_tx.input[0].witness.push(our_sig.serialize_der().to_vec());
- htlc_success_tx.input[0].witness[2].push(SigHashType::All as u8);
-
- htlc_success_tx.input[0].witness.push(payment_preimage.0.to_vec());
- let htlc_script = chan_utils::get_htlc_redeemscript_with_explicit_keys(htlc, &local_tx.a_htlc_key, &local_tx.b_htlc_key, &local_tx.revocation_key);
- htlc_success_tx.input[0].witness.push(htlc_script.clone().into_bytes());
+ if let &Storage::Local { ref htlc_base_key, .. } = &self.key_storage {
+ for &(ref htlc, ref sigs, _) in local_tx.htlc_outputs.iter() {
+ if let Some(transaction_output_index) = htlc.transaction_output_index {
+ if let &Some(ref their_sig) = sigs {
+ if htlc.offered {
+ log_trace!(self, "Broadcasting HTLC-Timeout transaction against local commitment transactions");
+ let mut htlc_timeout_tx = chan_utils::build_htlc_transaction(&local_tx.txid, local_tx.feerate_per_kw, self.their_to_self_delay.unwrap(), htlc, &local_tx.delayed_payment_key, &local_tx.revocation_key);
+ let (our_sig, htlc_script) = match
+ chan_utils::sign_htlc_transaction(&mut htlc_timeout_tx, their_sig, &None, htlc, &local_tx.a_htlc_key, &local_tx.b_htlc_key, &local_tx.revocation_key, &local_tx.per_commitment_point, htlc_base_key, &self.secp_ctx) {
+ Ok(res) => res,
+ Err(_) => continue,
+ };
- add_dynamic_output!(htlc_success_tx, 0);
+ add_dynamic_output!(htlc_timeout_tx, 0);
let height_timer = Self::get_height_timer(height, htlc.cltv_expiry);
let mut per_input_material = HashMap::with_capacity(1);
- per_input_material.insert(htlc_success_tx.input[0].previous_output, InputMaterial::LocalHTLC { script: htlc_script, sigs: (*their_sig, *our_sig), preimage: Some(*payment_preimage), amount: htlc.amount_msat / 1000});
+ per_input_material.insert(htlc_timeout_tx.input[0].previous_output, InputMaterial::LocalHTLC { script: htlc_script, sigs: (*their_sig, our_sig), preimage: None, amount: htlc.amount_msat / 1000});
//TODO: with option_simplified_commitment track outpoint too
- log_trace!(self, "Outpoint {}:{} is being being claimed, if it doesn't succeed, a bumped claiming txn is going to be broadcast at height {}", htlc_success_tx.input[0].previous_output.vout, htlc_success_tx.input[0].previous_output.txid, height_timer);
- pending_claims.push((htlc_success_tx.txid(), ClaimTxBumpMaterial { height_timer, feerate_previous: 0, soonest_timelock: htlc.cltv_expiry, per_input_material }));
- res.push(htlc_success_tx);
+ log_trace!(self, "Outpoint {}:{} is being being claimed, if it doesn't succeed, a bumped claiming txn is going to be broadcast at height {}", htlc_timeout_tx.input[0].previous_output.vout, htlc_timeout_tx.input[0].previous_output.txid, height_timer);
+ pending_claims.push((htlc_timeout_tx.txid(), ClaimTxBumpMaterial { height_timer, feerate_previous: 0, soonest_timelock: htlc.cltv_expiry, per_input_material }));
+ res.push(htlc_timeout_tx);
+ } else {
+ if let Some(payment_preimage) = self.payment_preimages.get(&htlc.payment_hash) {
+ log_trace!(self, "Broadcasting HTLC-Success transaction against local commitment transactions");
+ let mut htlc_success_tx = chan_utils::build_htlc_transaction(&local_tx.txid, local_tx.feerate_per_kw, self.their_to_self_delay.unwrap(), htlc, &local_tx.delayed_payment_key, &local_tx.revocation_key);
+ let (our_sig, htlc_script) = match
+ chan_utils::sign_htlc_transaction(&mut htlc_success_tx, their_sig, &Some(*payment_preimage), htlc, &local_tx.a_htlc_key, &local_tx.b_htlc_key, &local_tx.revocation_key, &local_tx.per_commitment_point, htlc_base_key, &self.secp_ctx) {
+ Ok(res) => res,
+ Err(_) => continue,
+ };
+
+ add_dynamic_output!(htlc_success_tx, 0);
+ let height_timer = Self::get_height_timer(height, htlc.cltv_expiry);
+ let mut per_input_material = HashMap::with_capacity(1);
+ per_input_material.insert(htlc_success_tx.input[0].previous_output, InputMaterial::LocalHTLC { script: htlc_script, sigs: (*their_sig, our_sig), preimage: Some(*payment_preimage), amount: htlc.amount_msat / 1000});
+ //TODO: with option_simplified_commitment track outpoint too
+ log_trace!(self, "Outpoint {}:{} is being being claimed, if it doesn't succeed, a bumped claiming txn is going to be broadcast at height {}", htlc_success_tx.input[0].previous_output.vout, htlc_success_tx.input[0].previous_output.txid, height_timer);
+ pending_claims.push((htlc_success_tx.txid(), ClaimTxBumpMaterial { height_timer, feerate_previous: 0, soonest_timelock: htlc.cltv_expiry, per_input_material }));
+ res.push(htlc_success_tx);
+ }
}
- }
- watch_outputs.push(local_tx.tx.output[transaction_output_index as usize].clone());
- } else { panic!("Should have sigs for non-dust local tx outputs!") }
+ watch_outputs.push(local_tx.tx.without_valid_witness().output[transaction_output_index as usize].clone());
+ } else { panic!("Should have sigs for non-dust local tx outputs!") }
+ }
}
}
// HTLCs set may differ between last and previous local commitment txn, in case of one them hitting chain, ensure we cancel all HTLCs backward
let mut is_local_tx = false;
+ if let &mut Some(ref mut local_tx) = &mut self.current_local_signed_commitment_tx {
+ if local_tx.txid == commitment_txid {
+ match self.key_storage {
+ Storage::Local { ref funding_key, .. } => {
+ local_tx.tx.add_local_sig(funding_key, self.funding_redeemscript.as_ref().unwrap(), self.channel_value_satoshis.unwrap(), &self.secp_ctx);
+ },
+ _ => {},
+ }
+ }
+ }
if let &Some(ref local_tx) = &self.current_local_signed_commitment_tx {
if local_tx.txid == commitment_txid {
is_local_tx = true;
log_trace!(self, "Got latest local commitment tx broadcast, searching for available HTLCs to claim");
+ assert!(local_tx.tx.has_local_sig());
match self.key_storage {
- Storage::Local { ref delayed_payment_base_key, ref latest_per_commitment_point, .. } => {
- append_onchain_update!(self.broadcast_by_local_state(local_tx, latest_per_commitment_point, &Some(*delayed_payment_base_key), height));
+ Storage::Local { ref delayed_payment_base_key, .. } => {
+ let mut res = self.broadcast_by_local_state(local_tx, delayed_payment_base_key, height);
+ append_onchain_update!(res);
},
- Storage::Watchtower { .. } => {
- append_onchain_update!(self.broadcast_by_local_state(local_tx, &None, &None, height));
- }
+ Storage::Watchtower { .. } => { }
+ }
+ }
+ }
+ if let &mut Some(ref mut local_tx) = &mut self.prev_local_signed_commitment_tx {
+ if local_tx.txid == commitment_txid {
+ match self.key_storage {
+ Storage::Local { ref funding_key, .. } => {
+ local_tx.tx.add_local_sig(funding_key, self.funding_redeemscript.as_ref().unwrap(), self.channel_value_satoshis.unwrap(), &self.secp_ctx);
+ },
+ _ => {},
}
}
}
if local_tx.txid == commitment_txid {
is_local_tx = true;
log_trace!(self, "Got previous local commitment tx broadcast, searching for available HTLCs to claim");
+ assert!(local_tx.tx.has_local_sig());
match self.key_storage {
- Storage::Local { ref delayed_payment_base_key, ref prev_latest_per_commitment_point, .. } => {
- append_onchain_update!(self.broadcast_by_local_state(local_tx, prev_latest_per_commitment_point, &Some(*delayed_payment_base_key), height));
+ Storage::Local { ref delayed_payment_base_key, .. } => {
+ let mut res = self.broadcast_by_local_state(local_tx, delayed_payment_base_key, height);
+ append_onchain_update!(res);
},
- Storage::Watchtower { .. } => {
- append_onchain_update!(self.broadcast_by_local_state(local_tx, &None, &None, height));
- }
+ Storage::Watchtower { .. } => { }
}
}
}
/// substantial amount of time (a month or even a year) to get back funds. Best may be to contact
/// out-of-band the other node operator to coordinate with him if option is available to you.
/// In any-case, choice is up to the user.
- pub fn get_latest_local_commitment_txn(&self) -> Vec<Transaction> {
+ pub fn get_latest_local_commitment_txn(&mut self) -> Vec<Transaction> {
+ log_trace!(self, "Getting signed latest local commitment transaction!");
+ if let &mut Some(ref mut local_tx) = &mut self.current_local_signed_commitment_tx {
+ match self.key_storage {
+ Storage::Local { ref funding_key, .. } => {
+ local_tx.tx.add_local_sig(funding_key, self.funding_redeemscript.as_ref().unwrap(), self.channel_value_satoshis.unwrap(), &self.secp_ctx);
+ },
+ _ => {},
+ }
+ }
if let &Some(ref local_tx) = &self.current_local_signed_commitment_tx {
- let mut res = vec![local_tx.tx.clone()];
+ let mut res = vec![local_tx.tx.with_valid_witness().clone()];
match self.key_storage {
- Storage::Local { ref delayed_payment_base_key, ref prev_latest_per_commitment_point, .. } => {
- res.append(&mut self.broadcast_by_local_state(local_tx, prev_latest_per_commitment_point, &Some(*delayed_payment_base_key), 0).0);
+ Storage::Local { ref delayed_payment_base_key, .. } => {
+ res.append(&mut self.broadcast_by_local_state(local_tx, delayed_payment_base_key, 0).0);
// We throw away the generated waiting_first_conf data as we aren't (yet) confirmed and we don't actually know what the caller wants to do.
// The data will be re-generated and tracked in check_spend_local_transaction if we get a confirmation.
},
}
fn block_connected(&mut self, txn_matched: &[&Transaction], height: u32, block_hash: &Sha256dHash, broadcaster: &BroadcasterInterface, fee_estimator: &FeeEstimator)-> (Vec<(Sha256dHash, Vec<TxOut>)>, Vec<SpendableOutputDescriptor>, Vec<(HTLCSource, Option<PaymentPreimage>, PaymentHash)>) {
+ log_trace!(self, "Block {} at height {} connected with {} txn matched", block_hash, height, txn_matched.len());
let mut watch_outputs = Vec::new();
let mut spendable_outputs = Vec::new();
let mut htlc_updated = Vec::new();
- let mut bump_candidates = Vec::new();
+ let mut bump_candidates = HashSet::new();
for tx in txn_matched {
if tx.input.len() == 1 {
// Assuming our keys were not leaked (in which case we're screwed no matter what),
// Scan all input to verify is one of the outpoint spent is of interest for us
let mut claimed_outputs_material = Vec::new();
for inp in &tx.input {
- if let Some(ancestor_claimable_txid) = self.claimable_outpoints.get(&inp.previous_output) {
+ if let Some(first_claim_txid_height) = self.claimable_outpoints.get(&inp.previous_output) {
// If outpoint has claim request pending on it...
- if let Some(claim_material) = self.pending_claim_requests.get_mut(&ancestor_claimable_txid.0) {
+ if let Some(claim_material) = self.pending_claim_requests.get_mut(&first_claim_txid_height.0) {
//... we need to verify equality between transaction outpoints and claim request
// outpoints to know if transaction is the original claim or a bumped one issued
// by us.
}
}
- // If this is our transaction (or our counterparty spent all the outputs
- // before we could anyway), wait for ANTI_REORG_DELAY and clean the RBF
- // tracking map.
- if set_equality {
- match self.onchain_events_waiting_threshold_conf.entry(height + ANTI_REORG_DELAY - 1) {
- hash_map::Entry::Occupied(_) => {},
- hash_map::Entry::Vacant(entry) => {
- entry.insert(vec![OnchainEvent::Claim { claim_request: ancestor_claimable_txid.0.clone()}]);
+ macro_rules! clean_claim_request_after_safety_delay {
+ () => {
+ let new_event = OnchainEvent::Claim { claim_request: first_claim_txid_height.0.clone() };
+ match self.onchain_events_waiting_threshold_conf.entry(height + ANTI_REORG_DELAY - 1) {
+ hash_map::Entry::Occupied(mut entry) => {
+ if !entry.get().contains(&new_event) {
+ entry.get_mut().push(new_event);
+ }
+ },
+ hash_map::Entry::Vacant(entry) => {
+ entry.insert(vec![new_event]);
+ }
}
}
+ }
+
+ // If this is our transaction (or our counterparty spent all the outputs
+ // before we could anyway with same inputs order than us), wait for
+ // ANTI_REORG_DELAY and clean the RBF tracking map.
+ if set_equality {
+ clean_claim_request_after_safety_delay!();
} else { // If false, generate new claim request with update outpoint set
for input in tx.input.iter() {
if let Some(input_material) = claim_material.per_input_material.remove(&input.previous_output) {
claimed_outputs_material.push((input.previous_output, input_material));
}
+ // If there are no outpoints left to claim in this request, drop it entirely after ANTI_REORG_DELAY.
+ if claim_material.per_input_material.is_empty() {
+ clean_claim_request_after_safety_delay!();
+ }
}
//TODO: recompute soonest_timelock to avoid wasting a bit on fees
- bump_candidates.push((ancestor_claimable_txid.0.clone(), claim_material.clone()));
+ bump_candidates.insert(first_claim_txid_height.0.clone());
}
break; //No need to iterate further, either tx is our or their
} else {
}
}
for (outpoint, input_material) in claimed_outputs_material.drain(..) {
+ let new_event = OnchainEvent::ContentiousOutpoint { outpoint, input_material };
match self.onchain_events_waiting_threshold_conf.entry(height + ANTI_REORG_DELAY - 1) {
- hash_map::Entry::Occupied(_) => {},
+ hash_map::Entry::Occupied(mut entry) => {
+ if !entry.get().contains(&new_event) {
+ entry.get_mut().push(new_event);
+ }
+ },
hash_map::Entry::Vacant(entry) => {
- entry.insert(vec![OnchainEvent::ContentiousOutpoint { outpoint, input_material }]);
+ entry.insert(vec![new_event]);
}
}
}
}
+ let should_broadcast = if let Some(_) = self.current_local_signed_commitment_tx {
+ self.would_broadcast_at_height(height)
+ } else { false };
+ if let Some(ref mut cur_local_tx) = self.current_local_signed_commitment_tx {
+ if should_broadcast {
+ match self.key_storage {
+ Storage::Local { ref funding_key, .. } => {
+ cur_local_tx.tx.add_local_sig(funding_key, self.funding_redeemscript.as_ref().unwrap(), self.channel_value_satoshis.unwrap(), &self.secp_ctx);
+ },
+ _ => {}
+ }
+ }
+ }
if let Some(ref cur_local_tx) = self.current_local_signed_commitment_tx {
- if self.would_broadcast_at_height(height) {
- log_trace!(self, "Broadcast onchain {}", log_tx!(cur_local_tx.tx));
- broadcaster.broadcast_transaction(&cur_local_tx.tx);
+ if should_broadcast {
+ log_trace!(self, "Broadcast onchain {}", log_tx!(cur_local_tx.tx.with_valid_witness()));
+ broadcaster.broadcast_transaction(&cur_local_tx.tx.with_valid_witness());
match self.key_storage {
- Storage::Local { ref delayed_payment_base_key, ref latest_per_commitment_point, .. } => {
- let (txs, mut spendable_output, new_outputs, _) = self.broadcast_by_local_state(&cur_local_tx, latest_per_commitment_point, &Some(*delayed_payment_base_key), height);
+ Storage::Local { ref delayed_payment_base_key, .. } => {
+ let (txs, mut spendable_output, new_outputs, _) = self.broadcast_by_local_state(&cur_local_tx, delayed_payment_base_key, height);
spendable_outputs.append(&mut spendable_output);
if !new_outputs.is_empty() {
watch_outputs.push((cur_local_tx.txid.clone(), new_outputs));
broadcaster.broadcast_transaction(&tx);
}
},
- Storage::Watchtower { .. } => {
- let (txs, mut spendable_output, new_outputs, _) = self.broadcast_by_local_state(&cur_local_tx, &None, &None, height);
- spendable_outputs.append(&mut spendable_output);
- if !new_outputs.is_empty() {
- watch_outputs.push((cur_local_tx.txid.clone(), new_outputs));
- }
- for tx in txs {
- log_trace!(self, "Broadcast onchain {}", log_tx!(tx));
- broadcaster.broadcast_transaction(&tx);
- }
- }
+ Storage::Watchtower { .. } => { },
}
}
}
for ev in events {
match ev {
OnchainEvent::Claim { claim_request } => {
- // 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
- self.pending_claim_requests.remove(&claim_request);
+ // 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(bump_material) = self.pending_claim_requests.remove(&claim_request) {
+ for outpoint in bump_material.per_input_material.keys() {
+ self.claimable_outpoints.remove(&outpoint);
+ }
+ }
},
OnchainEvent::HTLCUpdate { htlc_update } => {
log_trace!(self, "HTLC {} failure update has got enough confirmations to be passed upstream", log_bytes!((htlc_update.1).0));
}
}
}
- for (ancestor_claim_txid, ref mut cached_claim_datas) in self.pending_claim_requests.iter_mut() {
+ for (first_claim_txid, ref mut cached_claim_datas) in self.pending_claim_requests.iter_mut() {
if cached_claim_datas.height_timer == height {
- bump_candidates.push((ancestor_claim_txid.clone(), cached_claim_datas.clone()));
+ bump_candidates.insert(first_claim_txid.clone());
}
}
- for &mut (_, ref mut cached_claim_datas) in bump_candidates.iter_mut() {
- if let Some((new_timer, new_feerate, bump_tx)) = self.bump_claim_tx(height, &cached_claim_datas, fee_estimator) {
- cached_claim_datas.height_timer = new_timer;
- cached_claim_datas.feerate_previous = new_feerate;
- broadcaster.broadcast_transaction(&bump_tx);
+ for first_claim_txid in bump_candidates.iter() {
+ if let Some((new_timer, new_feerate)) = {
+ if let Some(claim_material) = self.pending_claim_requests.get(first_claim_txid) {
+ if let Some((new_timer, new_feerate, bump_tx)) = self.bump_claim_tx(height, &claim_material, fee_estimator) {
+ broadcaster.broadcast_transaction(&bump_tx);
+ Some((new_timer, new_feerate))
+ } else { None }
+ } else { unreachable!(); }
+ } {
+ if let Some(claim_material) = self.pending_claim_requests.get_mut(first_claim_txid) {
+ claim_material.height_timer = new_timer;
+ claim_material.feerate_previous = new_feerate;
+ } else { unreachable!(); }
}
}
- for (ancestor_claim_txid, cached_claim_datas) in bump_candidates.drain(..) {
- self.pending_claim_requests.insert(ancestor_claim_txid, cached_claim_datas);
- }
self.last_block_hash = block_hash.clone();
(watch_outputs, spendable_outputs, htlc_updated)
}
fn block_disconnected(&mut self, height: u32, block_hash: &Sha256dHash, broadcaster: &BroadcasterInterface, fee_estimator: &FeeEstimator) {
+ log_trace!(self, "Block {} at height {} disconnected", block_hash, height);
let mut bump_candidates = HashMap::new();
if let Some(events) = self.onchain_events_waiting_threshold_conf.remove(&(height + ANTI_REORG_DELAY - 1)) {
//We may discard:
'outer_loop: for input in &tx.input {
let mut payment_data = None;
- let revocation_sig_claim = (input.witness.len() == 3 && input.witness[2].len() == OFFERED_HTLC_SCRIPT_WEIGHT && input.witness[1].len() == 33)
- || (input.witness.len() == 3 && input.witness[2].len() == ACCEPTED_HTLC_SCRIPT_WEIGHT && input.witness[1].len() == 33);
- let accepted_preimage_claim = input.witness.len() == 5 && input.witness[4].len() == ACCEPTED_HTLC_SCRIPT_WEIGHT;
- let offered_preimage_claim = input.witness.len() == 3 && input.witness[2].len() == OFFERED_HTLC_SCRIPT_WEIGHT;
+ let revocation_sig_claim = (input.witness.len() == 3 && HTLCType::scriptlen_to_htlctype(input.witness[2].len()) == Some(HTLCType::OfferedHTLC) && input.witness[1].len() == 33)
+ || (input.witness.len() == 3 && HTLCType::scriptlen_to_htlctype(input.witness[2].len()) == Some(HTLCType::AcceptedHTLC) && input.witness[1].len() == 33);
+ let accepted_preimage_claim = input.witness.len() == 5 && HTLCType::scriptlen_to_htlctype(input.witness[4].len()) == Some(HTLCType::AcceptedHTLC);
+ let offered_preimage_claim = input.witness.len() == 3 && HTLCType::scriptlen_to_htlctype(input.witness[2].len()) == Some(HTLCType::OfferedHTLC);
macro_rules! log_claim {
($tx_info: expr, $local_tx: expr, $htlc: expr, $source_avail: expr) => {
for per_outp_material in cached_claim_datas.per_input_material.values() {
match per_outp_material {
&InputMaterial::Revoked { ref script, ref is_htlc, ref amount, .. } => {
- inputs_witnesses_weight += Self::get_witnesses_weight(if !is_htlc { &[InputDescriptors::RevokedOutput] } else if script.len() == OFFERED_HTLC_SCRIPT_WEIGHT { &[InputDescriptors::RevokedOfferedHTLC] } else if script.len() == ACCEPTED_HTLC_SCRIPT_WEIGHT { &[InputDescriptors::RevokedReceivedHTLC] } else { &[] });
+ inputs_witnesses_weight += Self::get_witnesses_weight(if !is_htlc { &[InputDescriptors::RevokedOutput] } else if HTLCType::scriptlen_to_htlctype(script.len()) == Some(HTLCType::OfferedHTLC) { &[InputDescriptors::RevokedOfferedHTLC] } else if HTLCType::scriptlen_to_htlctype(script.len()) == Some(HTLCType::AcceptedHTLC) { &[InputDescriptors::RevokedReceivedHTLC] } else { unreachable!() });
amt += *amount;
},
&InputMaterial::RemoteHTLC { ref preimage, ref amount, .. } => {
bumped_tx.input[i].witness.push(vec!(1));
}
bumped_tx.input[i].witness.push(script.clone().into_bytes());
- log_trace!(self, "Going to broadcast bumped Penalty Transaction {} claiming revoked {} output {} from {} with new feerate {}", bumped_tx.txid(), if !is_htlc { "to_local" } else if script.len() == OFFERED_HTLC_SCRIPT_WEIGHT { "offered" } else if script.len() == ACCEPTED_HTLC_SCRIPT_WEIGHT { "received" } else { "" }, outp.vout, outp.txid, new_feerate);
+ log_trace!(self, "Going to broadcast bumped Penalty Transaction {} claiming revoked {} output {} from {} with new feerate {}", bumped_tx.txid(), if !is_htlc { "to_local" } else if HTLCType::scriptlen_to_htlctype(script.len()) == Some(HTLCType::OfferedHTLC) { "offered" } else if HTLCType::scriptlen_to_htlctype(script.len()) == Some(HTLCType::AcceptedHTLC) { "received" } else { "" }, outp.vout, outp.txid, new_feerate);
},
&InputMaterial::RemoteHTLC { ref script, ref key, ref preimage, ref amount, ref locktime } => {
if !preimage.is_some() { bumped_tx.lock_time = *locktime };
let key_storage = match <u8 as Readable<R>>::read(reader)? {
0 => {
+ let funding_key = Readable::read(reader)?;
let revocation_base_key = Readable::read(reader)?;
let htlc_base_key = Readable::read(reader)?;
let delayed_payment_base_key = Readable::read(reader)?;
let payment_base_key = Readable::read(reader)?;
let shutdown_pubkey = Readable::read(reader)?;
- let prev_latest_per_commitment_point = Readable::read(reader)?;
- let latest_per_commitment_point = Readable::read(reader)?;
// Technically this can fail and serialize fail a round-trip, but only for serialization of
// barely-init'd ChannelMonitors that we can't do anything with.
let outpoint = OutPoint {
let current_remote_commitment_txid = Readable::read(reader)?;
let prev_remote_commitment_txid = Readable::read(reader)?;
Storage::Local {
+ funding_key,
revocation_base_key,
htlc_base_key,
delayed_payment_base_key,
payment_base_key,
shutdown_pubkey,
- prev_latest_per_commitment_point,
- latest_per_commitment_point,
funding_info,
current_remote_commitment_txid,
prev_remote_commitment_txid,
let their_htlc_base_key = Some(Readable::read(reader)?);
let their_delayed_payment_base_key = Some(Readable::read(reader)?);
+ let funding_redeemscript = Some(Readable::read(reader)?);
+ let channel_value_satoshis = Some(Readable::read(reader)?);
let their_cur_revocation_points = {
let first_idx = <U48 as Readable<R>>::read(reader)?.0;
macro_rules! read_local_tx {
() => {
{
- let tx = match Transaction::consensus_decode(reader.by_ref()) {
- Ok(tx) => tx,
- Err(e) => match e {
- encode::Error::Io(ioe) => return Err(DecodeError::Io(ioe)),
- _ => return Err(DecodeError::InvalidValue),
- },
- };
-
- if tx.input.is_empty() {
- // Ensure tx didn't hit the 0-input ambiguity case.
- return Err(DecodeError::InvalidValue);
- }
-
+ let tx = <LocalCommitmentTransaction as Readable<R>>::read(reader)?;
let revocation_key = Readable::read(reader)?;
let a_htlc_key = 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 htlcs_len: u64 = Readable::read(reader)?;
let htlc = read_htlc_in_commitment!();
let sigs = match <u8 as Readable<R>>::read(reader)? {
0 => None,
- 1 => Some((Readable::read(reader)?, Readable::read(reader)?)),
+ 1 => Some(Readable::read(reader)?),
_ => return Err(DecodeError::InvalidValue),
};
htlcs.push((htlc, sigs, Readable::read(reader)?));
LocalSignedTx {
txid: tx.txid(),
- tx, revocation_key, a_htlc_key, b_htlc_key, delayed_payment_key, feerate_per_kw,
+ tx, revocation_key, a_htlc_key, b_htlc_key, delayed_payment_key, per_commitment_point, feerate_per_kw,
htlc_outputs: htlcs
}
}
key_storage,
their_htlc_base_key,
their_delayed_payment_base_key,
+ funding_redeemscript,
+ channel_value_satoshis,
their_cur_revocation_points,
our_to_self_delay,
use ln::channelmanager::{PaymentPreimage, PaymentHash};
use ln::channelmonitor::{ChannelMonitor, InputDescriptors};
use ln::chan_utils;
- use ln::chan_utils::{HTLCOutputInCommitment, TxCreationKeys};
+ use ln::chan_utils::{HTLCOutputInCommitment, TxCreationKeys, LocalCommitmentTransaction};
use util::test_utils::TestLogger;
use secp256k1::key::{SecretKey,PublicKey};
use secp256k1::Secp256k1;
{
// insert_secret correct sequence
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
{
// insert_secret #1 incorrect
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
{
// insert_secret #2 incorrect (#1 derived from incorrect)
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
{
// insert_secret #3 incorrect
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
{
// insert_secret #4 incorrect (1,2,3 derived from incorrect)
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
{
// insert_secret #5 incorrect
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
{
// insert_secret #6 incorrect (5 derived from incorrect)
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
{
// insert_secret #7 incorrect
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
{
// insert_secret #8 incorrect
- monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
secrets.clear();
secrets.push([0; 32]);
// Prune with one old state and a local commitment tx holding a few overlaps with the
// old state.
- let mut monitor = ChannelMonitor::new(&SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
- monitor.set_their_to_self_delay(10);
+ let mut monitor = ChannelMonitor::new(&SecretKey::from_slice(&[41; 32]).unwrap(), &SecretKey::from_slice(&[42; 32]).unwrap(), &SecretKey::from_slice(&[43; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &SecretKey::from_slice(&[44; 32]).unwrap(), &PublicKey::from_secret_key(&secp_ctx, &SecretKey::from_slice(&[45; 32]).unwrap()), 0, Script::new(), logger.clone());
+ monitor.their_to_self_delay = Some(10);
- monitor.provide_latest_local_commitment_tx_info(dummy_tx.clone(), dummy_keys!(), 0, preimages_to_local_htlcs!(preimages[0..10]));
+ monitor.provide_latest_local_commitment_tx_info(LocalCommitmentTransaction::dummy(), dummy_keys!(), 0, preimages_to_local_htlcs!(preimages[0..10]));
monitor.provide_latest_remote_commitment_tx_info(&dummy_tx, preimages_slice_to_htlc_outputs!(preimages[5..15]), 281474976710655, dummy_key);
monitor.provide_latest_remote_commitment_tx_info(&dummy_tx, preimages_slice_to_htlc_outputs!(preimages[15..20]), 281474976710654, dummy_key);
monitor.provide_latest_remote_commitment_tx_info(&dummy_tx, preimages_slice_to_htlc_outputs!(preimages[17..20]), 281474976710653, dummy_key);
// Now update local commitment tx info, pruning only element 18 as we still care about the
// previous commitment tx's preimages too
- monitor.provide_latest_local_commitment_tx_info(dummy_tx.clone(), dummy_keys!(), 0, preimages_to_local_htlcs!(preimages[0..5]));
+ monitor.provide_latest_local_commitment_tx_info(LocalCommitmentTransaction::dummy(), dummy_keys!(), 0, preimages_to_local_htlcs!(preimages[0..5]));
secret[0..32].clone_from_slice(&hex::decode("2273e227a5b7449b6e70f1fb4652864038b1cbf9cd7c043a7d6456b7fc275ad8").unwrap());
monitor.provide_secret(281474976710653, secret.clone()).unwrap();
assert_eq!(monitor.payment_preimages.len(), 12);
test_preimages_exist!(&preimages[18..20], monitor);
// But if we do it again, we'll prune 5-10
- monitor.provide_latest_local_commitment_tx_info(dummy_tx.clone(), dummy_keys!(), 0, preimages_to_local_htlcs!(preimages[0..3]));
+ monitor.provide_latest_local_commitment_tx_info(LocalCommitmentTransaction::dummy(), dummy_keys!(), 0, preimages_to_local_htlcs!(preimages[0..3]));
secret[0..32].clone_from_slice(&hex::decode("27cddaa5624534cb6cb9d7da077cf2b22ab21e9b506fd4998a51d54502e99116").unwrap());
monitor.provide_secret(281474976710652, secret.clone()).unwrap();
assert_eq!(monitor.payment_preimages.len(), 5);
projects / rust-lightning / blobdiff