X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fchain%2Fpackage.rs;h=4604a164cd634534169e46f0df40670f346172c3;hb=c4947acaec808ff3568e3c168ac942d9cfcdb9b0;hp=7ea61dc244976c2257087b91ade479d5aa758832;hpb=607727fae793e86f23249afddb0c10018312607f;p=rust-lightning diff --git a/lightning/src/chain/package.rs b/lightning/src/chain/package.rs index 7ea61dc2..4604a164 100644 --- a/lightning/src/chain/package.rs +++ b/lightning/src/chain/package.rs @@ -25,7 +25,7 @@ use crate::ln::chan_utils::{TxCreationKeys, HTLCOutputInCommitment}; use crate::ln::chan_utils; use crate::ln::msgs::DecodeError; use crate::chain::chaininterface::{FeeEstimator, ConfirmationTarget, MIN_RELAY_FEE_SAT_PER_1000_WEIGHT}; -use crate::chain::keysinterface::WriteableEcdsaChannelSigner; +use crate::sign::WriteableEcdsaChannelSigner; #[cfg(anchors)] use crate::chain::onchaintx::ExternalHTLCClaim; use crate::chain::onchaintx::OnchainTxHandler; @@ -98,10 +98,11 @@ pub(crate) struct RevokedOutput { weight: u64, amount: u64, on_counterparty_tx_csv: u16, + is_counterparty_balance_on_anchors: Option<()>, } impl RevokedOutput { - pub(crate) fn build(per_commitment_point: PublicKey, counterparty_delayed_payment_base_key: PublicKey, counterparty_htlc_base_key: PublicKey, per_commitment_key: SecretKey, amount: u64, on_counterparty_tx_csv: u16) -> Self { + pub(crate) fn build(per_commitment_point: PublicKey, counterparty_delayed_payment_base_key: PublicKey, counterparty_htlc_base_key: PublicKey, per_commitment_key: SecretKey, amount: u64, on_counterparty_tx_csv: u16, is_counterparty_balance_on_anchors: bool) -> Self { RevokedOutput { per_commitment_point, counterparty_delayed_payment_base_key, @@ -109,7 +110,8 @@ impl RevokedOutput { per_commitment_key, weight: WEIGHT_REVOKED_OUTPUT, amount, - on_counterparty_tx_csv + on_counterparty_tx_csv, + is_counterparty_balance_on_anchors: if is_counterparty_balance_on_anchors { Some(()) } else { None } } } } @@ -122,6 +124,7 @@ impl_writeable_tlv_based!(RevokedOutput, { (8, weight, required), (10, amount, required), (12, on_counterparty_tx_csv, required), + (14, is_counterparty_balance_on_anchors, option) }); /// A struct to describe a revoked offered output and corresponding information to generate a @@ -479,6 +482,24 @@ impl PackageSolvingData { }; absolute_timelock } + + fn map_output_type_flags(&self) -> (PackageMalleability, bool) { + // Post-anchor, aggregation of outputs of different types is unsafe. See https://github.com/lightning/bolts/pull/803. + let (malleability, aggregable) = match self { + PackageSolvingData::RevokedOutput(RevokedOutput { is_counterparty_balance_on_anchors: Some(()), .. }) => { (PackageMalleability::Malleable, false) }, + PackageSolvingData::RevokedOutput(RevokedOutput { is_counterparty_balance_on_anchors: None, .. }) => { (PackageMalleability::Malleable, true) }, + PackageSolvingData::RevokedHTLCOutput(..) => { (PackageMalleability::Malleable, true) }, + PackageSolvingData::CounterpartyOfferedHTLCOutput(..) => { (PackageMalleability::Malleable, true) }, + PackageSolvingData::CounterpartyReceivedHTLCOutput(..) => { (PackageMalleability::Malleable, false) }, + PackageSolvingData::HolderHTLCOutput(ref outp) => if outp.opt_anchors() { + (PackageMalleability::Malleable, outp.preimage.is_some()) + } else { + (PackageMalleability::Untractable, false) + }, + PackageSolvingData::HolderFundingOutput(..) => { (PackageMalleability::Untractable, false) }, + }; + (malleability, aggregable) + } } impl_writeable_tlv_based_enum!(PackageSolvingData, ; @@ -491,8 +512,7 @@ impl_writeable_tlv_based_enum!(PackageSolvingData, ; ); /// A malleable package might be aggregated with other packages to save on fees. -/// A untractable package has been counter-signed and aggregable will break cached counterparty -/// signatures. +/// A untractable package has been counter-signed and aggregable will break cached counterparty signatures. #[derive(Clone, PartialEq, Eq)] pub(crate) enum PackageMalleability { Malleable, @@ -826,19 +846,8 @@ impl PackageTemplate { }).is_some() } - pub (crate) fn build_package(txid: Txid, vout: u32, input_solving_data: PackageSolvingData, soonest_conf_deadline: u32, aggregable: bool, height_original: u32) -> Self { - let malleability = match input_solving_data { - PackageSolvingData::RevokedOutput(..) => PackageMalleability::Malleable, - PackageSolvingData::RevokedHTLCOutput(..) => PackageMalleability::Malleable, - PackageSolvingData::CounterpartyOfferedHTLCOutput(..) => PackageMalleability::Malleable, - PackageSolvingData::CounterpartyReceivedHTLCOutput(..) => PackageMalleability::Malleable, - PackageSolvingData::HolderHTLCOutput(ref outp) => if outp.opt_anchors() { - PackageMalleability::Malleable - } else { - PackageMalleability::Untractable - }, - PackageSolvingData::HolderFundingOutput(..) => PackageMalleability::Untractable, - }; + pub (crate) fn build_package(txid: Txid, vout: u32, input_solving_data: PackageSolvingData, soonest_conf_deadline: u32, height_original: u32) -> Self { + let (malleability, aggregable) = PackageSolvingData::map_output_type_flags(&input_solving_data); let mut inputs = Vec::with_capacity(1); inputs.push((BitcoinOutPoint { txid, vout }, input_solving_data)); PackageTemplate { @@ -880,18 +889,7 @@ impl Readable for PackageTemplate { inputs.push((outpoint, rev_outp)); } let (malleability, aggregable) = if let Some((_, lead_input)) = inputs.first() { - match lead_input { - PackageSolvingData::RevokedOutput(..) => { (PackageMalleability::Malleable, true) }, - PackageSolvingData::RevokedHTLCOutput(..) => { (PackageMalleability::Malleable, true) }, - PackageSolvingData::CounterpartyOfferedHTLCOutput(..) => { (PackageMalleability::Malleable, true) }, - PackageSolvingData::CounterpartyReceivedHTLCOutput(..) => { (PackageMalleability::Malleable, false) }, - PackageSolvingData::HolderHTLCOutput(ref outp) => if outp.opt_anchors() { - (PackageMalleability::Malleable, outp.preimage.is_some()) - } else { - (PackageMalleability::Untractable, false) - }, - PackageSolvingData::HolderFundingOutput(..) => { (PackageMalleability::Untractable, false) }, - } + PackageSolvingData::map_output_type_flags(&lead_input) } else { return Err(DecodeError::InvalidValue); }; let mut soonest_conf_deadline = 0; let mut feerate_previous = 0; @@ -1029,11 +1027,11 @@ mod tests { use bitcoin::secp256k1::Secp256k1; macro_rules! dumb_revk_output { - ($secp_ctx: expr) => { + ($secp_ctx: expr, $is_counterparty_balance_on_anchors: expr) => { { let dumb_scalar = SecretKey::from_slice(&hex::decode("0101010101010101010101010101010101010101010101010101010101010101").unwrap()[..]).unwrap(); let dumb_point = PublicKey::from_secret_key(&$secp_ctx, &dumb_scalar); - PackageSolvingData::RevokedOutput(RevokedOutput::build(dumb_point, dumb_point, dumb_point, dumb_scalar, 0, 0)) + PackageSolvingData::RevokedOutput(RevokedOutput::build(dumb_point, dumb_point, dumb_point, dumb_scalar, 0, 0, $is_counterparty_balance_on_anchors)) } } } @@ -1077,10 +1075,10 @@ mod tests { fn test_package_differing_heights() { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); - let revk_outp = dumb_revk_output!(secp_ctx); + let revk_outp = dumb_revk_output!(secp_ctx, false); - let mut package_one_hundred = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, true, 100); - let package_two_hundred = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, true, 200); + let mut package_one_hundred = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, 100); + let package_two_hundred = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, 200); package_one_hundred.merge_package(package_two_hundred); } @@ -1089,11 +1087,11 @@ mod tests { fn test_package_untractable_merge_to() { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); - let revk_outp = dumb_revk_output!(secp_ctx); + let revk_outp = dumb_revk_output!(secp_ctx, false); let htlc_outp = dumb_htlc_output!(); - let mut untractable_package = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, true, 100); - let malleable_package = PackageTemplate::build_package(txid, 1, htlc_outp.clone(), 1000, true, 100); + let mut untractable_package = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, 100); + let malleable_package = PackageTemplate::build_package(txid, 1, htlc_outp.clone(), 1000, 100); untractable_package.merge_package(malleable_package); } @@ -1103,10 +1101,10 @@ mod tests { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); let htlc_outp = dumb_htlc_output!(); - let revk_outp = dumb_revk_output!(secp_ctx); + let revk_outp = dumb_revk_output!(secp_ctx, false); - let mut malleable_package = PackageTemplate::build_package(txid, 0, htlc_outp.clone(), 1000, true, 100); - let untractable_package = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, true, 100); + let mut malleable_package = PackageTemplate::build_package(txid, 0, htlc_outp.clone(), 1000, 100); + let untractable_package = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, 100); malleable_package.merge_package(untractable_package); } @@ -1115,10 +1113,11 @@ mod tests { fn test_package_noaggregation_to() { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); - let revk_outp = dumb_revk_output!(secp_ctx); + let revk_outp = dumb_revk_output!(secp_ctx, false); + let revk_outp_counterparty_balance = dumb_revk_output!(secp_ctx, true); - let mut noaggregation_package = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, false, 100); - let aggregation_package = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, true, 100); + let mut noaggregation_package = PackageTemplate::build_package(txid, 0, revk_outp_counterparty_balance.clone(), 1000, 100); + let aggregation_package = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, 100); noaggregation_package.merge_package(aggregation_package); } @@ -1127,10 +1126,11 @@ mod tests { fn test_package_noaggregation_from() { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); - let revk_outp = dumb_revk_output!(secp_ctx); + let revk_outp = dumb_revk_output!(secp_ctx, false); + let revk_outp_counterparty_balance = dumb_revk_output!(secp_ctx, true); - let mut aggregation_package = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, true, 100); - let noaggregation_package = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, false, 100); + let mut aggregation_package = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, 100); + let noaggregation_package = PackageTemplate::build_package(txid, 1, revk_outp_counterparty_balance.clone(), 1000, 100); aggregation_package.merge_package(noaggregation_package); } @@ -1139,11 +1139,11 @@ mod tests { fn test_package_empty() { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); - let revk_outp = dumb_revk_output!(secp_ctx); + let revk_outp = dumb_revk_output!(secp_ctx, false); - let mut empty_package = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, true, 100); + let mut empty_package = PackageTemplate::build_package(txid, 0, revk_outp.clone(), 1000, 100); empty_package.inputs = vec![]; - let package = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, true, 100); + let package = PackageTemplate::build_package(txid, 1, revk_outp.clone(), 1000, 100); empty_package.merge_package(package); } @@ -1152,11 +1152,11 @@ mod tests { fn test_package_differing_categories() { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); - let revk_outp = dumb_revk_output!(secp_ctx); + let revk_outp = dumb_revk_output!(secp_ctx, false); let counterparty_outp = dumb_counterparty_output!(secp_ctx, 0, false); - let mut revoked_package = PackageTemplate::build_package(txid, 0, revk_outp, 1000, true, 100); - let counterparty_package = PackageTemplate::build_package(txid, 1, counterparty_outp, 1000, true, 100); + let mut revoked_package = PackageTemplate::build_package(txid, 0, revk_outp, 1000, 100); + let counterparty_package = PackageTemplate::build_package(txid, 1, counterparty_outp, 1000, 100); revoked_package.merge_package(counterparty_package); } @@ -1164,13 +1164,13 @@ mod tests { fn test_package_split_malleable() { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); - let revk_outp_one = dumb_revk_output!(secp_ctx); - let revk_outp_two = dumb_revk_output!(secp_ctx); - let revk_outp_three = dumb_revk_output!(secp_ctx); + let revk_outp_one = dumb_revk_output!(secp_ctx, false); + let revk_outp_two = dumb_revk_output!(secp_ctx, false); + let revk_outp_three = dumb_revk_output!(secp_ctx, false); - let mut package_one = PackageTemplate::build_package(txid, 0, revk_outp_one, 1000, true, 100); - let package_two = PackageTemplate::build_package(txid, 1, revk_outp_two, 1000, true, 100); - let package_three = PackageTemplate::build_package(txid, 2, revk_outp_three, 1000, true, 100); + let mut package_one = PackageTemplate::build_package(txid, 0, revk_outp_one, 1000, 100); + let package_two = PackageTemplate::build_package(txid, 1, revk_outp_two, 1000, 100); + let package_three = PackageTemplate::build_package(txid, 2, revk_outp_three, 1000, 100); package_one.merge_package(package_two); package_one.merge_package(package_three); @@ -1193,7 +1193,7 @@ mod tests { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let htlc_outp_one = dumb_htlc_output!(); - let mut package_one = PackageTemplate::build_package(txid, 0, htlc_outp_one, 1000, true, 100); + let mut package_one = PackageTemplate::build_package(txid, 0, htlc_outp_one, 1000, 100); let ret_split = package_one.split_package(&BitcoinOutPoint { txid, vout: 0}); assert!(ret_split.is_none()); } @@ -1202,9 +1202,9 @@ mod tests { fn test_package_timer() { let txid = Txid::from_hex("c2d4449afa8d26140898dd54d3390b057ba2a5afcf03ba29d7dc0d8b9ffe966e").unwrap(); let secp_ctx = Secp256k1::new(); - let revk_outp = dumb_revk_output!(secp_ctx); + let revk_outp = dumb_revk_output!(secp_ctx, false); - let mut package = PackageTemplate::build_package(txid, 0, revk_outp, 1000, true, 100); + let mut package = PackageTemplate::build_package(txid, 0, revk_outp, 1000, 100); assert_eq!(package.timer(), 100); package.set_timer(101); assert_eq!(package.timer(), 101); @@ -1216,7 +1216,7 @@ mod tests { let secp_ctx = Secp256k1::new(); let counterparty_outp = dumb_counterparty_output!(secp_ctx, 1_000_000, false); - let package = PackageTemplate::build_package(txid, 0, counterparty_outp, 1000, true, 100); + let package = PackageTemplate::build_package(txid, 0, counterparty_outp, 1000, 100); assert_eq!(package.package_amount(), 1000); } @@ -1229,15 +1229,15 @@ mod tests { let weight_sans_output = (4 + 4 + 1 + 36 + 4 + 1 + 1 + 8 + 1) * WITNESS_SCALE_FACTOR + 2; { - let revk_outp = dumb_revk_output!(secp_ctx); - let package = PackageTemplate::build_package(txid, 0, revk_outp, 0, true, 100); + let revk_outp = dumb_revk_output!(secp_ctx, false); + let package = PackageTemplate::build_package(txid, 0, revk_outp, 0, 100); assert_eq!(package.package_weight(&Script::new()), weight_sans_output + WEIGHT_REVOKED_OUTPUT as usize); } { for &opt_anchors in [false, true].iter() { let counterparty_outp = dumb_counterparty_output!(secp_ctx, 1_000_000, opt_anchors); - let package = PackageTemplate::build_package(txid, 0, counterparty_outp, 1000, true, 100); + let package = PackageTemplate::build_package(txid, 0, counterparty_outp, 1000, 100); assert_eq!(package.package_weight(&Script::new()), weight_sans_output + weight_received_htlc(opt_anchors) as usize); } } @@ -1245,7 +1245,7 @@ mod tests { { for &opt_anchors in [false, true].iter() { let counterparty_outp = dumb_counterparty_offered_output!(secp_ctx, 1_000_000, opt_anchors); - let package = PackageTemplate::build_package(txid, 0, counterparty_outp, 1000, true, 100); + let package = PackageTemplate::build_package(txid, 0, counterparty_outp, 1000, 100); assert_eq!(package.package_weight(&Script::new()), weight_sans_output + weight_offered_htlc(opt_anchors) as usize); } }