From 20a25967efd1b331f7faed3629617164fa1b40ec Mon Sep 17 00:00:00 2001 From: Matt Corallo Date: Thu, 18 Feb 2021 21:32:58 -0500 Subject: [PATCH] Use `signer` instead of `keys_storage` in OnchainTx to hold `Sign` --- lightning/src/ln/onchaintx.rs | 31 ++++++++++++++----------------- 1 file changed, 14 insertions(+), 17 deletions(-) diff --git a/lightning/src/ln/onchaintx.rs b/lightning/src/ln/onchaintx.rs index 9d5d2e00b..74d82a2ac 100644 --- a/lightning/src/ln/onchaintx.rs +++ b/lightning/src/ln/onchaintx.rs @@ -250,7 +250,7 @@ pub struct OnchainTxHandler { prev_holder_commitment: Option, prev_holder_htlc_sigs: Option>>, - key_storage: ChanSigner, + signer: ChanSigner, pub(crate) channel_transaction_parameters: ChannelTransactionParameters, // Used to track claiming requests. If claim tx doesn't confirm before height timer expiration we need to bump @@ -298,7 +298,7 @@ impl OnchainTxHandler { self.channel_transaction_parameters.write(writer)?; let mut key_data = VecWriter(Vec::new()); - self.key_storage.write(&mut key_data)?; + self.signer.write(&mut key_data)?; assert!(key_data.0.len() < std::usize::MAX); assert!(key_data.0.len() < std::u32::MAX as usize); (key_data.0.len() as u32).write(writer)?; @@ -360,7 +360,7 @@ impl<'a, K: KeysInterface> ReadableArgs<&'a K> for OnchainTxHandler { reader.read_exact(read_slice)?; keys_data.extend_from_slice(read_slice); } - let key_storage = keys_manager.read_chan_signer(&keys_data)?; + let signer = keys_manager.read_chan_signer(&keys_data)?; let pending_claim_requests_len: u64 = Readable::read(reader)?; let mut pending_claim_requests = HashMap::with_capacity(cmp::min(pending_claim_requests_len as usize, MAX_ALLOC_SIZE / 128)); @@ -412,7 +412,7 @@ impl<'a, K: KeysInterface> ReadableArgs<&'a K> for OnchainTxHandler { holder_htlc_sigs, prev_holder_commitment, prev_holder_htlc_sigs, - key_storage, + signer, channel_transaction_parameters: channel_parameters, claimable_outpoints, pending_claim_requests, @@ -424,17 +424,14 @@ impl<'a, K: KeysInterface> ReadableArgs<&'a K> for OnchainTxHandler { } impl OnchainTxHandler { - pub(crate) fn new(destination_script: Script, keys: ChanSigner, channel_parameters: ChannelTransactionParameters, holder_commitment: HolderCommitmentTransaction) -> Self { - - let key_storage = keys; - + pub(crate) fn new(destination_script: Script, signer: ChanSigner, channel_parameters: ChannelTransactionParameters, holder_commitment: HolderCommitmentTransaction) -> Self { OnchainTxHandler { destination_script, holder_commitment, holder_htlc_sigs: None, prev_holder_commitment: None, prev_holder_htlc_sigs: None, - key_storage, + signer, channel_transaction_parameters: channel_parameters, pending_claim_requests: HashMap::new(), claimable_outpoints: HashMap::new(), @@ -605,7 +602,7 @@ impl OnchainTxHandler { for (i, (outp, per_outp_material)) in cached_claim_datas.per_input_material.iter().enumerate() { match per_outp_material { &InputMaterial::Revoked { ref per_commitment_point, ref counterparty_delayed_payment_base_key, ref counterparty_htlc_base_key, ref per_commitment_key, ref input_descriptor, ref amount, ref htlc, ref on_counterparty_tx_csv } => { - if let Ok(chan_keys) = TxCreationKeys::derive_new(&self.secp_ctx, &per_commitment_point, counterparty_delayed_payment_base_key, counterparty_htlc_base_key, &self.key_storage.pubkeys().revocation_basepoint, &self.key_storage.pubkeys().htlc_basepoint) { + if let Ok(chan_keys) = TxCreationKeys::derive_new(&self.secp_ctx, &per_commitment_point, counterparty_delayed_payment_base_key, counterparty_htlc_base_key, &self.signer.pubkeys().revocation_basepoint, &self.signer.pubkeys().htlc_basepoint) { let witness_script = if let Some(ref htlc) = *htlc { chan_utils::get_htlc_redeemscript_with_explicit_keys(&htlc, &chan_keys.broadcaster_htlc_key, &chan_keys.countersignatory_htlc_key, &chan_keys.revocation_key) @@ -613,7 +610,7 @@ impl OnchainTxHandler { chan_utils::get_revokeable_redeemscript(&chan_keys.revocation_key, *on_counterparty_tx_csv, &chan_keys.broadcaster_delayed_payment_key) }; - let sig = self.key_storage.sign_justice_transaction(&bumped_tx, i, *amount, &per_commitment_key, htlc, &self.secp_ctx).expect("sign justice tx"); + let sig = self.signer.sign_justice_transaction(&bumped_tx, i, *amount, &per_commitment_key, htlc, &self.secp_ctx).expect("sign justice tx"); bumped_tx.input[i].witness.push(sig.serialize_der().to_vec()); bumped_tx.input[i].witness[0].push(SigHashType::All as u8); if htlc.is_some() { @@ -627,11 +624,11 @@ impl OnchainTxHandler { } }, &InputMaterial::CounterpartyHTLC { ref per_commitment_point, ref counterparty_delayed_payment_base_key, ref counterparty_htlc_base_key, ref preimage, ref htlc } => { - if let Ok(chan_keys) = TxCreationKeys::derive_new(&self.secp_ctx, &per_commitment_point, counterparty_delayed_payment_base_key, counterparty_htlc_base_key, &self.key_storage.pubkeys().revocation_basepoint, &self.key_storage.pubkeys().htlc_basepoint) { + if let Ok(chan_keys) = TxCreationKeys::derive_new(&self.secp_ctx, &per_commitment_point, counterparty_delayed_payment_base_key, counterparty_htlc_base_key, &self.signer.pubkeys().revocation_basepoint, &self.signer.pubkeys().htlc_basepoint) { let witness_script = chan_utils::get_htlc_redeemscript_with_explicit_keys(&htlc, &chan_keys.broadcaster_htlc_key, &chan_keys.countersignatory_htlc_key, &chan_keys.revocation_key); if !preimage.is_some() { bumped_tx.lock_time = htlc.cltv_expiry }; // Right now we don't aggregate time-locked transaction, if we do we should set lock_time before to avoid breaking hash computation - let sig = self.key_storage.sign_counterparty_htlc_transaction(&bumped_tx, i, &htlc.amount_msat / 1000, &per_commitment_point, htlc, &self.secp_ctx).expect("sign counterparty HTLC tx"); + let sig = self.signer.sign_counterparty_htlc_transaction(&bumped_tx, i, &htlc.amount_msat / 1000, &per_commitment_point, htlc, &self.secp_ctx).expect("sign counterparty HTLC tx"); bumped_tx.input[i].witness.push(sig.serialize_der().to_vec()); bumped_tx.input[i].witness[0].push(SigHashType::All as u8); if let &Some(preimage) = preimage { @@ -914,7 +911,7 @@ impl OnchainTxHandler { // ChannelMonitor replica, so we handle that case here. fn sign_latest_holder_htlcs(&mut self) { if self.holder_htlc_sigs.is_none() { - let (_sig, sigs) = self.key_storage.sign_holder_commitment_and_htlcs(&self.holder_commitment, &self.secp_ctx).expect("sign holder commitment"); + let (_sig, sigs) = self.signer.sign_holder_commitment_and_htlcs(&self.holder_commitment, &self.secp_ctx).expect("sign holder commitment"); self.holder_htlc_sigs = Some(Self::extract_holder_sigs(&self.holder_commitment, sigs)); } } @@ -925,7 +922,7 @@ impl OnchainTxHandler { fn sign_prev_holder_htlcs(&mut self) { if self.prev_holder_htlc_sigs.is_none() { if let Some(ref holder_commitment) = self.prev_holder_commitment { - let (_sig, sigs) = self.key_storage.sign_holder_commitment_and_htlcs(holder_commitment, &self.secp_ctx).expect("sign previous holder commitment"); + let (_sig, sigs) = self.signer.sign_holder_commitment_and_htlcs(holder_commitment, &self.secp_ctx).expect("sign previous holder commitment"); self.prev_holder_htlc_sigs = Some(Self::extract_holder_sigs(holder_commitment, sigs)); } } @@ -946,14 +943,14 @@ impl OnchainTxHandler { // before providing a initial commitment transaction. For outbound channel, init ChannelMonitor at Channel::funding_signed, there is nothing // to monitor before. pub(crate) fn get_fully_signed_holder_tx(&mut self, funding_redeemscript: &Script) -> Transaction { - let (sig, htlc_sigs) = self.key_storage.sign_holder_commitment_and_htlcs(&self.holder_commitment, &self.secp_ctx).expect("signing holder commitment"); + let (sig, htlc_sigs) = self.signer.sign_holder_commitment_and_htlcs(&self.holder_commitment, &self.secp_ctx).expect("signing holder commitment"); self.holder_htlc_sigs = Some(Self::extract_holder_sigs(&self.holder_commitment, htlc_sigs)); self.holder_commitment.add_holder_sig(funding_redeemscript, sig) } #[cfg(any(test, feature="unsafe_revoked_tx_signing"))] pub(crate) fn get_fully_signed_copy_holder_tx(&mut self, funding_redeemscript: &Script) -> Transaction { - let (sig, htlc_sigs) = self.key_storage.unsafe_sign_holder_commitment_and_htlcs(&self.holder_commitment, &self.secp_ctx).expect("sign holder commitment"); + let (sig, htlc_sigs) = self.signer.unsafe_sign_holder_commitment_and_htlcs(&self.holder_commitment, &self.secp_ctx).expect("sign holder commitment"); self.holder_htlc_sigs = Some(Self::extract_holder_sigs(&self.holder_commitment, htlc_sigs)); self.holder_commitment.add_holder_sig(funding_redeemscript, sig) } -- 2.39.5