/// 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.
+///
+/// Note that the deserializer is only implemented for (Sha256dHash, ChannelMonitor), which
+/// tells you the last block hash which was block_connect()ed. You MUST rescan any blocks along
+/// 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 struct ChannelMonitor<ChanSigner: ChannelKeys> {
latest_update_id: u64,
commitment_transaction_number_obscure_factor: u64,
counterparty_payment_script: Script,
shutdown_script: Script,
- keys: ChanSigner,
+ key_derivation_params: (u64, u64),
+ holder_revocation_basepoint: PublicKey,
funding_info: (OutPoint, Script),
current_counterparty_commitment_txid: Option<Txid>,
prev_counterparty_commitment_txid: Option<Txid>,
self.destination_script != other.destination_script ||
self.broadcasted_holder_revokable_script != other.broadcasted_holder_revokable_script ||
self.counterparty_payment_script != other.counterparty_payment_script ||
- self.keys.pubkeys() != other.keys.pubkeys() ||
+ self.key_derivation_params != other.key_derivation_params ||
+ self.holder_revocation_basepoint != other.holder_revocation_basepoint ||
self.funding_info != other.funding_info ||
self.current_counterparty_commitment_txid != other.current_counterparty_commitment_txid ||
self.prev_counterparty_commitment_txid != other.prev_counterparty_commitment_txid ||
}
}
-impl<ChanSigner: ChannelKeys + Writeable> ChannelMonitor<ChanSigner> {
- /// Writes this monitor into the given writer, suitable for writing to disk.
- ///
- /// Note that the deserializer is only implemented for (Sha256dHash, ChannelMonitor), which
- /// tells you the last block hash which was block_connect()ed. You MUST rescan any blocks along
- /// 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 serialize_for_disk<W: Writer>(&self, writer: &mut W) -> Result<(), Error> {
+impl<ChanSigner: ChannelKeys> Writeable for ChannelMonitor<ChanSigner> {
+ fn write<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.counterparty_payment_script.write(writer)?;
self.shutdown_script.write(writer)?;
- self.keys.write(writer)?;
+ self.key_derivation_params.write(writer)?;
+ self.holder_revocation_basepoint.write(writer)?;
writer.write_all(&self.funding_info.0.txid[..])?;
writer.write_all(&byte_utils::be16_to_array(self.funding_info.0.index))?;
self.funding_info.1.write(writer)?;
let counterparty_htlc_base_key = counterparty_channel_parameters.pubkeys.htlc_basepoint;
let counterparty_tx_cache = CounterpartyCommitmentTransaction { counterparty_delayed_payment_base_key, counterparty_htlc_base_key, on_counterparty_tx_csv, per_htlc: HashMap::new() };
- let mut onchain_tx_handler = OnchainTxHandler::new(destination_script.clone(), keys.clone(), channel_parameters.clone());
+ let key_derivation_params = keys.key_derivation_params();
+ let holder_revocation_basepoint = keys.pubkeys().revocation_basepoint;
+ let mut onchain_tx_handler = OnchainTxHandler::new(destination_script.clone(), keys, channel_parameters.clone());
let secp_ctx = Secp256k1::new();
counterparty_payment_script,
shutdown_script,
- keys,
+ key_derivation_params,
+ holder_revocation_basepoint,
funding_info,
current_counterparty_commitment_txid: None,
prev_counterparty_commitment_txid: None,
let secret = self.get_secret(commitment_number).unwrap();
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_pubkey = ignore_error!(chan_utils::derive_public_revocation_key(&self.secp_ctx, &per_commitment_point, &self.holder_revocation_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.counterparty_tx_cache.counterparty_delayed_payment_base_key));
let revokeable_redeemscript = chan_utils::get_revokeable_redeemscript(&revocation_pubkey, self.counterparty_tx_cache.on_counterparty_tx_csv, &delayed_key);
per_commitment_point: broadcasted_holder_revokable_script.1,
to_self_delay: self.on_holder_tx_csv,
output: outp.clone(),
- key_derivation_params: self.keys.key_derivation_params(),
+ key_derivation_params: self.key_derivation_params,
revocation_pubkey: broadcasted_holder_revokable_script.2.clone(),
});
break;
spendable_output = Some(SpendableOutputDescriptor::StaticOutputCounterpartyPayment {
outpoint: OutPoint { txid: tx.txid(), index: i as u16 },
output: outp.clone(),
- key_derivation_params: self.keys.key_derivation_params(),
+ key_derivation_params: self.key_derivation_params,
});
break;
} else if outp.script_pubkey == self.shutdown_script {
let counterparty_payment_script = Readable::read(reader)?;
let shutdown_script = Readable::read(reader)?;
- let keys = Readable::read(reader)?;
+ let key_derivation_params = Readable::read(reader)?;
+ let holder_revocation_basepoint = 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 {
counterparty_payment_script,
shutdown_script,
- keys,
+ key_derivation_params,
+ holder_revocation_basepoint,
funding_info,
current_counterparty_commitment_txid,
prev_counterparty_commitment_txid,
projects / rust-lightning / blobdiff