X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Futil%2Fenforcing_trait_impls.rs;h=df0f13bc3adc7d142165e622caec90da62bdc48f;hb=aee7bb4acde387983c428fddcfc5b1a173cdcee7;hp=8344f9f357f959b5d62a4e35ee4e1a677ddfa8b4;hpb=fc9a4c22d195a75ad5942eed271757f285452214;p=rust-lightning diff --git a/lightning/src/util/enforcing_trait_impls.rs b/lightning/src/util/enforcing_trait_impls.rs index 8344f9f3..df0f13bc 100644 --- a/lightning/src/util/enforcing_trait_impls.rs +++ b/lightning/src/util/enforcing_trait_impls.rs @@ -10,7 +10,7 @@ use crate::ln::channel::{ANCHOR_OUTPUT_VALUE_SATOSHI, MIN_CHAN_DUST_LIMIT_SATOSHIS}; use crate::ln::chan_utils::{HTLCOutputInCommitment, ChannelPublicKeys, HolderCommitmentTransaction, CommitmentTransaction, ChannelTransactionParameters, TrustedCommitmentTransaction, ClosingTransaction}; use crate::ln::{chan_utils, msgs, PaymentPreimage}; -use crate::chain::keysinterface::{Sign, InMemorySigner, BaseSign}; +use crate::sign::{WriteableEcdsaChannelSigner, InMemorySigner, ChannelSigner, EcdsaChannelSigner}; use crate::prelude::*; use core::cmp; @@ -23,8 +23,10 @@ use bitcoin::util::sighash; use bitcoin::secp256k1; use bitcoin::secp256k1::{SecretKey, PublicKey}; use bitcoin::secp256k1::{Secp256k1, ecdsa::Signature}; +use crate::events::bump_transaction::HTLCDescriptor; use crate::util::ser::{Writeable, Writer}; use crate::io::Error; +use crate::ln::features::ChannelTypeFeatures; /// Initial value for revoked commitment downward counter pub const INITIAL_REVOKED_COMMITMENT_NUMBER: u64 = 1 << 48; @@ -56,6 +58,12 @@ pub struct EnforcingSigner { pub disable_revocation_policy_check: bool, } +impl PartialEq for EnforcingSigner { + fn eq(&self, o: &Self) -> bool { + Arc::ptr_eq(&self.state, &o.state) + } +} + impl EnforcingSigner { /// Construct an EnforcingSigner pub fn new(inner: InMemorySigner) -> Self { @@ -80,7 +88,7 @@ impl EnforcingSigner { } } - pub fn opt_anchors(&self) -> bool { self.inner.opt_anchors() } + pub fn channel_type_features(&self) -> &ChannelTypeFeatures { self.inner.channel_type_features() } #[cfg(test)] pub fn get_enforcement_state(&self) -> MutexGuard { @@ -88,7 +96,7 @@ impl EnforcingSigner { } } -impl BaseSign for EnforcingSigner { +impl ChannelSigner for EnforcingSigner { fn get_per_commitment_point(&self, idx: u64, secp_ctx: &Secp256k1) -> PublicKey { self.inner.get_per_commitment_point(idx, secp_ctx) } @@ -112,8 +120,15 @@ impl BaseSign for EnforcingSigner { } fn pubkeys(&self) -> &ChannelPublicKeys { self.inner.pubkeys() } + fn channel_keys_id(&self) -> [u8; 32] { self.inner.channel_keys_id() } + fn provide_channel_parameters(&mut self, channel_parameters: &ChannelTransactionParameters) { + self.inner.provide_channel_parameters(channel_parameters) + } +} + +impl EcdsaChannelSigner for EnforcingSigner { fn sign_counterparty_commitment(&self, commitment_tx: &CommitmentTransaction, preimages: Vec, secp_ctx: &Secp256k1) -> Result<(Signature, Vec), ()> { self.verify_counterparty_commitment_tx(commitment_tx, secp_ctx); @@ -157,11 +172,11 @@ impl BaseSign for EnforcingSigner { for (this_htlc, sig) in trusted_tx.htlcs().iter().zip(&commitment_tx.counterparty_htlc_sigs) { assert!(this_htlc.transaction_output_index.is_some()); let keys = trusted_tx.keys(); - let htlc_tx = chan_utils::build_htlc_transaction(&commitment_txid, trusted_tx.feerate_per_kw(), holder_csv, &this_htlc, self.opt_anchors(), &keys.broadcaster_delayed_payment_key, &keys.revocation_key); + let htlc_tx = chan_utils::build_htlc_transaction(&commitment_txid, trusted_tx.feerate_per_kw(), holder_csv, &this_htlc, self.channel_type_features(), &keys.broadcaster_delayed_payment_key, &keys.revocation_key); - let htlc_redeemscript = chan_utils::get_htlc_redeemscript(&this_htlc, self.opt_anchors(), &keys); + let htlc_redeemscript = chan_utils::get_htlc_redeemscript(&this_htlc, self.channel_type_features(), &keys); - let sighash_type = if self.opt_anchors() { + let sighash_type = if self.channel_type_features().supports_anchors_zero_fee_htlc_tx() { EcdsaSighashType::SinglePlusAnyoneCanPay } else { EcdsaSighashType::All @@ -190,6 +205,15 @@ impl BaseSign for EnforcingSigner { Ok(self.inner.sign_justice_revoked_htlc(justice_tx, input, amount, per_commitment_key, htlc, secp_ctx).unwrap()) } + fn sign_holder_htlc_transaction( + &self, htlc_tx: &Transaction, input: usize, htlc_descriptor: &HTLCDescriptor, + secp_ctx: &Secp256k1 + ) -> Result { + assert_eq!(htlc_tx.input[input], htlc_descriptor.unsigned_tx_input()); + assert_eq!(htlc_tx.output[input], htlc_descriptor.tx_output(secp_ctx)); + Ok(self.inner.sign_holder_htlc_transaction(htlc_tx, input, htlc_descriptor, secp_ctx).unwrap()) + } + fn sign_counterparty_htlc_transaction(&self, htlc_tx: &Transaction, input: usize, amount: u64, per_commitment_point: &PublicKey, htlc: &HTLCOutputInCommitment, secp_ctx: &Secp256k1) -> Result { Ok(self.inner.sign_counterparty_htlc_transaction(htlc_tx, input, amount, per_commitment_point, htlc, secp_ctx).unwrap()) } @@ -201,7 +225,7 @@ impl BaseSign for EnforcingSigner { } fn sign_holder_anchor_input( - &self, anchor_tx: &mut Transaction, input: usize, secp_ctx: &Secp256k1, + &self, anchor_tx: &Transaction, input: usize, secp_ctx: &Secp256k1, ) -> Result { debug_assert!(MIN_CHAN_DUST_LIMIT_SATOSHIS > ANCHOR_OUTPUT_VALUE_SATOSHI); // As long as our minimum dust limit is enforced and is greater than our anchor output @@ -210,23 +234,20 @@ impl BaseSign for EnforcingSigner { self.inner.sign_holder_anchor_input(anchor_tx, input, secp_ctx) } - fn sign_channel_announcement(&self, msg: &msgs::UnsignedChannelAnnouncement, secp_ctx: &Secp256k1) - -> Result<(Signature, Signature), ()> { - self.inner.sign_channel_announcement(msg, secp_ctx) - } - - fn ready_channel(&mut self, channel_parameters: &ChannelTransactionParameters) { - self.inner.ready_channel(channel_parameters) + fn sign_channel_announcement_with_funding_key( + &self, msg: &msgs::UnsignedChannelAnnouncement, secp_ctx: &Secp256k1 + ) -> Result { + self.inner.sign_channel_announcement_with_funding_key(msg, secp_ctx) } } -impl Sign for EnforcingSigner {} +impl WriteableEcdsaChannelSigner for EnforcingSigner {} impl Writeable for EnforcingSigner { fn write(&self, writer: &mut W) -> Result<(), Error> { // EnforcingSigner has two fields - `inner` ([`InMemorySigner`]) and `state` // ([`EnforcementState`]). `inner` is serialized here and deserialized by - // [`KeysInterface::read_chan_signer`]. `state` is managed by [`KeysInterface`] + // [`SignerProvider::read_chan_signer`]. `state` is managed by [`SignerProvider`] // and will be serialized as needed by the implementation of that trait. self.inner.write(writer)?; Ok(())