use ln::msgs::{DecodeError, OptionalField, LocalFeatures, DataLossProtect};
use ln::channelmonitor::ChannelMonitor;
use ln::channelmanager::{PendingHTLCStatus, HTLCSource, HTLCFailReason, HTLCFailureMsg, PendingForwardHTLCInfo, RAACommitmentOrder, PaymentPreimage, PaymentHash, BREAKDOWN_TIMEOUT, MAX_LOCAL_BREAKDOWN_TIMEOUT};
-use ln::chan_utils::{TxCreationKeys,HTLCOutputInCommitment,HTLC_SUCCESS_TX_WEIGHT,HTLC_TIMEOUT_TX_WEIGHT};
+use ln::chan_utils::{LocalCommitmentTransaction,TxCreationKeys,HTLCOutputInCommitment,HTLC_SUCCESS_TX_WEIGHT,HTLC_TIMEOUT_TX_WEIGHT};
use ln::chan_utils;
use chain::chaininterface::{FeeEstimator,ConfirmationTarget};
use chain::transaction::OutPoint;
let feerate = fee_estimator.get_est_sat_per_1000_weight(ConfirmationTarget::Normal);
let secp_ctx = Secp256k1::new();
- let channel_monitor = ChannelMonitor::new(chan_keys.revocation_base_key(), chan_keys.delayed_payment_base_key(),
+ let channel_monitor = ChannelMonitor::new(chan_keys.funding_key(), chan_keys.revocation_base_key(), chan_keys.delayed_payment_base_key(),
chan_keys.htlc_base_key(), chan_keys.payment_base_key(), &keys_provider.get_shutdown_pubkey(), config.own_channel_config.our_to_self_delay,
keys_provider.get_destination_script(), logger.clone());
}
let secp_ctx = Secp256k1::new();
- let channel_monitor = ChannelMonitor::new(chan_keys.revocation_base_key(), chan_keys.delayed_payment_base_key(),
+ let channel_monitor = ChannelMonitor::new(chan_keys.funding_key(), chan_keys.revocation_base_key(), chan_keys.delayed_payment_base_key(),
chan_keys.htlc_base_key(), chan_keys.payment_base_key(), &keys_provider.get_shutdown_pubkey(), config.own_channel_config.our_to_self_delay,
keys_provider.get_destination_script(), logger.clone());
}.push_opcode(opcodes::all::OP_PUSHNUM_2).push_opcode(opcodes::all::OP_CHECKMULTISIG).into_script()
}
- fn sign_commitment_transaction(&self, tx: &mut Transaction, their_sig: &Signature) -> Signature {
- if tx.input.len() != 1 {
- panic!("Tried to sign commitment transaction that had input count != 1!");
- }
- if tx.input[0].witness.len() != 0 {
- panic!("Tried to re-sign commitment transaction");
- }
-
- let funding_redeemscript = self.get_funding_redeemscript();
-
- let sighash = hash_to_message!(&bip143::SighashComponents::new(&tx).sighash_all(&tx.input[0], &funding_redeemscript, self.channel_value_satoshis)[..]);
- let our_sig = self.secp_ctx.sign(&sighash, self.local_keys.funding_key());
-
- tx.input[0].witness.push(Vec::new()); // First is the multisig dummy
-
- let our_funding_key = PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()).serialize();
- let their_funding_key = self.their_funding_pubkey.unwrap().serialize();
- if our_funding_key[..] < their_funding_key[..] {
- tx.input[0].witness.push(our_sig.serialize_der().to_vec());
- tx.input[0].witness.push(their_sig.serialize_der().to_vec());
- } else {
- tx.input[0].witness.push(their_sig.serialize_der().to_vec());
- tx.input[0].witness.push(our_sig.serialize_der().to_vec());
- }
- tx.input[0].witness[1].push(SigHashType::All as u8);
- tx.input[0].witness[2].push(SigHashType::All as u8);
-
- tx.input[0].witness.push(funding_redeemscript.into_bytes());
-
- our_sig
- }
-
/// Builds the htlc-success or htlc-timeout transaction which spends a given HTLC output
/// @local is used only to convert relevant internal structures which refer to remote vs local
/// to decide value of outputs and direction of HTLCs.
Ok(())
}
- fn funding_created_signature(&mut self, sig: &Signature) -> Result<(Transaction, Transaction, Signature, TxCreationKeys), ChannelError> {
+ fn funding_created_signature(&mut self, sig: &Signature) -> Result<(Transaction, LocalCommitmentTransaction, Signature, TxCreationKeys), ChannelError> {
let funding_script = self.get_funding_redeemscript();
let local_keys = self.build_local_transaction_keys(self.cur_local_commitment_transaction_number)?;
- let mut local_initial_commitment_tx = self.build_commitment_transaction(self.cur_local_commitment_transaction_number, &local_keys, true, false, self.feerate_per_kw).0;
+ let local_initial_commitment_tx = self.build_commitment_transaction(self.cur_local_commitment_transaction_number, &local_keys, true, false, self.feerate_per_kw).0;
let local_sighash = hash_to_message!(&bip143::SighashComponents::new(&local_initial_commitment_tx).sighash_all(&local_initial_commitment_tx.input[0], &funding_script, self.channel_value_satoshis)[..]);
// They sign the "local" commitment transaction...
secp_check!(self.secp_ctx.verify(&local_sighash, &sig, &self.their_funding_pubkey.unwrap()), "Invalid funding_created signature from peer");
- // ...and we sign it, allowing us to broadcast the tx if we wish
- self.sign_commitment_transaction(&mut local_initial_commitment_tx, sig);
+ let localtx = LocalCommitmentTransaction::new_missing_local_sig(local_initial_commitment_tx, sig, &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), self.their_funding_pubkey.as_ref().unwrap());
let remote_keys = self.build_remote_transaction_keys()?;
let remote_initial_commitment_tx = self.build_commitment_transaction(self.cur_remote_commitment_transaction_number, &remote_keys, false, false, self.feerate_per_kw).0;
.map_err(|_| ChannelError::Close("Failed to get signatures for new commitment_signed"))?.0;
// We sign the "remote" commitment transaction, allowing them to broadcast the tx if they wish.
- Ok((remote_initial_commitment_tx, local_initial_commitment_tx, remote_signature, local_keys))
+ Ok((remote_initial_commitment_tx, localtx, remote_signature, local_keys))
}
pub fn funding_created(&mut self, msg: &msgs::FundingCreated) -> Result<(msgs::FundingSigned, ChannelMonitor), ChannelError> {
let funding_script = self.get_funding_redeemscript();
let local_keys = self.build_local_transaction_keys(self.cur_local_commitment_transaction_number)?;
- let mut local_initial_commitment_tx = self.build_commitment_transaction(self.cur_local_commitment_transaction_number, &local_keys, true, false, self.feerate_per_kw).0;
+ let local_initial_commitment_tx = self.build_commitment_transaction(self.cur_local_commitment_transaction_number, &local_keys, true, false, self.feerate_per_kw).0;
let local_sighash = hash_to_message!(&bip143::SighashComponents::new(&local_initial_commitment_tx).sighash_all(&local_initial_commitment_tx.input[0], &funding_script, self.channel_value_satoshis)[..]);
// They sign the "local" commitment transaction, allowing us to broadcast the tx if we wish.
secp_check!(self.secp_ctx.verify(&local_sighash, &msg.signature, &self.their_funding_pubkey.unwrap()), "Invalid funding_signed signature from peer");
- self.sign_commitment_transaction(&mut local_initial_commitment_tx, &msg.signature);
- self.channel_monitor.provide_latest_local_commitment_tx_info(local_initial_commitment_tx, local_keys, self.feerate_per_kw, Vec::new());
+ self.channel_monitor.provide_latest_local_commitment_tx_info(
+ LocalCommitmentTransaction::new_missing_local_sig(local_initial_commitment_tx, &msg.signature, &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), self.their_funding_pubkey.as_ref().unwrap()),
+ local_keys, self.feerate_per_kw, Vec::new());
self.channel_state = ChannelState::FundingSent as u32 | (self.channel_state & (ChannelState::MonitorUpdateFailed as u32));
self.cur_local_commitment_transaction_number -= 1;
return Err(ChannelError::Close("Got wrong number of HTLC signatures from remote"));
}
- self.sign_commitment_transaction(&mut local_commitment_tx.0, &msg.signature);
-
let mut htlcs_and_sigs = Vec::with_capacity(local_commitment_tx.2.len());
for (idx, (htlc, source)) in local_commitment_tx.2.drain(..).enumerate() {
if let Some(_) = htlc.transaction_output_index {
}
}
- self.channel_monitor.provide_latest_local_commitment_tx_info(local_commitment_tx.0, local_keys, self.feerate_per_kw, htlcs_and_sigs);
+
+ self.channel_monitor.provide_latest_local_commitment_tx_info(
+ LocalCommitmentTransaction::new_missing_local_sig(local_commitment_tx.0, &msg.signature, &PublicKey::from_secret_key(&self.secp_ctx, self.local_keys.funding_key()), self.their_funding_pubkey.as_ref().unwrap()),
+ local_keys, self.feerate_per_kw, htlcs_and_sigs);
for htlc in self.pending_inbound_htlcs.iter_mut() {
let new_forward = if let &InboundHTLCState::RemoteAnnounced(ref forward_info) = &htlc.state {
}
/// May only be called after funding has been initiated (ie is_funding_initiated() is true)
- pub fn channel_monitor(&self) -> &ChannelMonitor {
+ pub fn channel_monitor(&mut self) -> &mut ChannelMonitor {
if self.channel_state < ChannelState::FundingCreated as u32 {
panic!("Can't get a channel monitor until funding has been created");
}
- &self.channel_monitor
+ &mut self.channel_monitor
}
/// Guaranteed to be Some after both FundingLocked messages have been exchanged (and, thus,
use ln::channel::{Channel,ChannelKeys,InboundHTLCOutput,OutboundHTLCOutput,InboundHTLCState,OutboundHTLCState,HTLCOutputInCommitment,TxCreationKeys};
use ln::channel::MAX_FUNDING_SATOSHIS;
use ln::chan_utils;
+ use ln::chan_utils::LocalCommitmentTransaction;
use chain::chaininterface::{FeeEstimator,ConfirmationTarget};
use chain::keysinterface::{InMemoryChannelKeys, KeysInterface};
use chain::transaction::OutPoint;
.collect();
(res.0, htlcs)
};
+ let redeemscript = chan.get_funding_redeemscript();
let their_signature = Signature::from_der(&hex::decode($their_sig_hex).unwrap()[..]).unwrap();
- let sighash = Message::from_slice(&bip143::SighashComponents::new(&unsigned_tx.0).sighash_all(&unsigned_tx.0.input[0], &chan.get_funding_redeemscript(), chan.channel_value_satoshis)[..]).unwrap();
+ let sighash = Message::from_slice(&bip143::SighashComponents::new(&unsigned_tx.0).sighash_all(&unsigned_tx.0.input[0], &redeemscript, chan.channel_value_satoshis)[..]).unwrap();
secp_ctx.verify(&sighash, &their_signature, &chan.their_funding_pubkey.unwrap()).unwrap();
- chan.sign_commitment_transaction(&mut unsigned_tx.0, &their_signature);
+ let mut localtx = LocalCommitmentTransaction::new_missing_local_sig(unsigned_tx.0.clone(), &their_signature, &PublicKey::from_secret_key(&secp_ctx, chan.local_keys.funding_key()), chan.their_funding_pubkey.as_ref().unwrap());
+ localtx.add_local_sig(chan.local_keys.funding_key(), &redeemscript, chan.channel_value_satoshis, &chan.secp_ctx);
- assert_eq!(serialize(&unsigned_tx.0)[..],
+ assert_eq!(serialize(localtx.with_valid_witness())[..],
hex::decode($tx_hex).unwrap()[..]);
};
}
projects / rust-lightning / blobdiff