X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Ffunctional_tests.rs;h=df3c64ae8ff67ac0e429d720bfe304ba628341db;hb=496eb4526bd64e7d41d0b238b834923ca00c8ff6;hp=b36cb32f3eeca3828257754611060164a75c8c4c;hpb=5a1404809fcf2548924b0a7c0d7be73f24e59e09;p=rust-lightning diff --git a/lightning/src/ln/functional_tests.rs b/lightning/src/ln/functional_tests.rs index b36cb32f..df3c64ae 100644 --- a/lightning/src/ln/functional_tests.rs +++ b/lightning/src/ln/functional_tests.rs @@ -12,14 +12,14 @@ //! claim outputs on-chain. use chain; -use chain::Listen; -use chain::Watch; +use chain::{Confirm, Listen, Watch}; use chain::channelmonitor; use chain::channelmonitor::{ChannelMonitor, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ANTI_REORG_DELAY}; use chain::transaction::OutPoint; use chain::keysinterface::{KeysInterface, BaseSign}; +use ln::{PaymentPreimage, PaymentSecret, PaymentHash}; use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC}; -use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSendFailure, BREAKDOWN_TIMEOUT}; +use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs, RAACommitmentOrder, PaymentSendFailure, BREAKDOWN_TIMEOUT, MIN_CLTV_EXPIRY_DELTA}; use ln::channel::{Channel, ChannelError}; use ln::{chan_utils, onion_utils}; use routing::router::{Route, RouteHop, get_route}; @@ -28,7 +28,7 @@ use ln::msgs; use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler,HTLCFailChannelUpdate, ErrorAction}; use util::enforcing_trait_impls::EnforcingSigner; use util::{byte_utils, test_utils}; -use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider}; +use util::events::{Event, MessageSendEvent, MessageSendEventsProvider}; use util::errors::APIError; use util::ser::{Writeable, ReadableArgs}; use util::config::UserConfig; @@ -49,9 +49,10 @@ use bitcoin::secp256k1::key::{PublicKey,SecretKey}; use regex; -use std::collections::{BTreeSet, HashMap, HashSet}; -use std::default::Default; -use std::sync::Mutex; +use prelude::*; +use alloc::collections::BTreeSet; +use core::default::Default; +use std::sync::{Arc, Mutex}; use ln::functional_test_utils::*; use ln::chan_utils::CommitmentTransaction; @@ -128,7 +129,7 @@ fn test_async_inbound_update_fee() { let channel_id = chan.2; // balancing - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); // A B // update_fee -> @@ -243,7 +244,7 @@ fn test_update_fee_unordered_raa() { let logger = test_utils::TestLogger::new(); // balancing - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); // First nodes[0] generates an update_fee nodes[0].node.update_fee(channel_id, get_feerate!(nodes[0], channel_id) + 20).unwrap(); @@ -625,7 +626,7 @@ fn test_update_fee_with_fundee_update_add_htlc() { let logger = test_utils::TestLogger::new(); // balancing - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); let feerate = get_feerate!(nodes[0], channel_id); nodes[0].node.update_fee(channel_id, feerate+20).unwrap(); @@ -705,10 +706,10 @@ fn test_update_fee_with_fundee_update_add_htlc() { _ => panic!("Unexpected event"), }; - claim_payment(&nodes[1], &vec!(&nodes[0])[..], our_payment_preimage, 800_000); + claim_payment(&nodes[1], &vec!(&nodes[0])[..], our_payment_preimage); - send_payment(&nodes[1], &vec!(&nodes[0])[..], 800000, 800_000); - send_payment(&nodes[0], &vec!(&nodes[1])[..], 800000, 800_000); + send_payment(&nodes[1], &vec!(&nodes[0])[..], 800000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 800000); close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true); } @@ -874,7 +875,7 @@ fn updates_shutdown_wait() { unwrap_send_err!(nodes[0].node.send_payment(&route_1, payment_hash, &Some(payment_secret)), true, APIError::ChannelUnavailable {..}, {}); unwrap_send_err!(nodes[1].node.send_payment(&route_2, payment_hash, &Some(payment_secret)), true, APIError::ChannelUnavailable {..}, {}); - assert!(nodes[2].node.claim_funds(our_payment_preimage, 100_000)); + assert!(nodes[2].node.claim_funds(our_payment_preimage)); check_added_monitors!(nodes[2], 1); let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); assert!(updates.update_add_htlcs.is_empty()); @@ -1047,7 +1048,7 @@ fn do_test_shutdown_rebroadcast(recv_count: u8) { assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); - assert!(nodes[2].node.claim_funds(our_payment_preimage, 100_000)); + assert!(nodes[2].node.claim_funds(our_payment_preimage)); check_added_monitors!(nodes[2], 1); let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); assert!(updates.update_add_htlcs.is_empty()); @@ -1175,15 +1176,15 @@ fn fake_network_test() { let chan_3 = create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known()); // Rebalance the network a bit by relaying one payment through all the channels... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 8000000); // Send some more payments - send_payment(&nodes[1], &vec!(&nodes[2], &nodes[3])[..], 1000000, 1_000_000); - send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1], &nodes[0])[..], 1000000, 1_000_000); - send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1])[..], 1000000, 1_000_000); + send_payment(&nodes[1], &vec!(&nodes[2], &nodes[3])[..], 1000000); + send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1], &nodes[0])[..], 1000000); + send_payment(&nodes[3], &vec!(&nodes[2], &nodes[1])[..], 1000000); // Test failure packets let payment_hash_1 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3])[..], 1000000).1; @@ -1192,13 +1193,13 @@ fn fake_network_test() { // Add a new channel that skips 3 let chan_4 = create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known()); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 1000000, 1_000_000); - send_payment(&nodes[2], &vec!(&nodes[3])[..], 1000000, 1_000_000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000); - send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], 1000000); + send_payment(&nodes[2], &vec!(&nodes[3])[..], 1000000); + send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); + send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); + send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); + send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); + send_payment(&nodes[1], &vec!(&nodes[3])[..], 8000000); // Do some rebalance loop payments, simultaneously let mut hops = Vec::with_capacity(3); @@ -1261,7 +1262,7 @@ fn fake_network_test() { // Claim the rebalances... fail_payment(&nodes[1], &vec!(&nodes[3], &nodes[2], &nodes[1])[..], payment_hash_2); - claim_payment(&nodes[1], &vec!(&nodes[2], &nodes[3], &nodes[1])[..], payment_preimage_1, 1_000_000); + claim_payment(&nodes[1], &vec!(&nodes[2], &nodes[3], &nodes[1])[..], payment_preimage_1); // Add a duplicate new channel from 2 to 4 let chan_5 = create_announced_chan_between_nodes(&nodes, 1, 3, InitFeatures::known(), InitFeatures::known()); @@ -1279,9 +1280,9 @@ fn fake_network_test() { //TODO: Test that routes work again here as we've been notified that the channel is full - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_3, 3_000_000); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_4, 3_000_000); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_5, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_3); + claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_4); + claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[3])[..], payment_preimage_5); // Close down the channels... close_channel(&nodes[0], &nodes[1], &chan_1.2, chan_1.3, true); @@ -1358,15 +1359,7 @@ fn holding_cell_htlc_counting() { nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &bs_fail_updates.update_fail_htlcs[0]); commitment_signed_dance!(nodes[0], nodes[1], bs_fail_updates.commitment_signed, false, true); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelUpdateMessage { ref msg }} => { - assert_eq!(msg.contents.short_channel_id, chan_2.0.contents.short_channel_id); - }, - _ => panic!("Unexpected event"), - } - + expect_payment_failure_chan_update!(nodes[0], chan_2.0.contents.short_channel_id, false); expect_payment_failed!(nodes[0], payment_hash_2, false); // Now forward all the pending HTLCs and claim them back @@ -1415,10 +1408,10 @@ fn holding_cell_htlc_counting() { } for (preimage, _) in payments.drain(..) { - claim_payment(&nodes[1], &[&nodes[2]], preimage, 100_000); + claim_payment(&nodes[1], &[&nodes[2]], preimage); } - send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000, 1_000_000); + send_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000); } #[test] @@ -1445,9 +1438,9 @@ fn duplicate_htlc_test() { *nodes[0].network_payment_count.borrow_mut() -= 1; assert_eq!(route_payment(&nodes[2], &vec!(&nodes[3], &nodes[5])[..], 1000000).0, payment_preimage); - claim_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], payment_preimage, 1_000_000); + claim_payment(&nodes[0], &vec!(&nodes[3], &nodes[4])[..], payment_preimage); fail_payment(&nodes[2], &vec!(&nodes[3], &nodes[5])[..], payment_hash); - claim_payment(&nodes[1], &vec!(&nodes[3])[..], payment_preimage, 1_000_000); + claim_payment(&nodes[1], &vec!(&nodes[3])[..], payment_preimage); } #[test] @@ -1464,7 +1457,7 @@ fn test_duplicate_htlc_different_direction_onchain() { let logger = test_utils::TestLogger::new(); // balancing - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 900_000); @@ -1474,7 +1467,7 @@ fn test_duplicate_htlc_different_direction_onchain() { send_along_route_with_secret(&nodes[1], route, &[&[&nodes[0]]], 800_000, payment_hash, node_a_payment_secret); // Provide preimage to node 0 by claiming payment - nodes[0].node.claim_funds(payment_preimage, 800_000); + nodes[0].node.claim_funds(payment_preimage); check_added_monitors!(nodes[0], 1); // Broadcast node 1 commitment txn @@ -1493,19 +1486,29 @@ fn test_duplicate_htlc_different_direction_onchain() { mine_transaction(&nodes[0], &remote_txn[0]); check_added_monitors!(nodes[0], 1); + connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires // Check we only broadcast 1 timeout tx let claim_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); - let htlc_pair = if claim_txn[0].output[0].value == 800_000 / 1000 { (claim_txn[0].clone(), claim_txn[1].clone()) } else { (claim_txn[1].clone(), claim_txn[0].clone()) }; - assert_eq!(claim_txn.len(), 5); - check_spends!(claim_txn[2], chan_1.3); - check_spends!(claim_txn[3], claim_txn[2]); - assert_eq!(htlc_pair.0.input.len(), 1); - assert_eq!(htlc_pair.0.input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC 1 <--> 0, preimage tx - check_spends!(htlc_pair.0, remote_txn[0]); - assert_eq!(htlc_pair.1.input.len(), 1); - assert_eq!(htlc_pair.1.input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); // HTLC 0 <--> 1, timeout tx - check_spends!(htlc_pair.1, remote_txn[0]); + assert_eq!(claim_txn.len(), 8); + assert_eq!(claim_txn[1], claim_txn[4]); + assert_eq!(claim_txn[2], claim_txn[5]); + check_spends!(claim_txn[1], chan_1.3); + check_spends!(claim_txn[2], claim_txn[1]); + check_spends!(claim_txn[7], claim_txn[1]); + + assert_eq!(claim_txn[0].input.len(), 1); + assert_eq!(claim_txn[3].input.len(), 1); + assert_eq!(claim_txn[0].input[0].previous_output, claim_txn[3].input[0].previous_output); + + assert_eq!(claim_txn[0].input.len(), 1); + assert_eq!(claim_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC 1 <--> 0, preimage tx + check_spends!(claim_txn[0], remote_txn[0]); + assert_eq!(remote_txn[0].output[claim_txn[0].input[0].previous_output.vout as usize].value, 800); + assert_eq!(claim_txn[6].input.len(), 1); + assert_eq!(claim_txn[6].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); // HTLC 0 <--> 1, timeout tx + check_spends!(claim_txn[6], remote_txn[0]); + assert_eq!(remote_txn[0].output[claim_txn[6].input[0].previous_output.vout as usize].value, 900); let events = nodes[0].node.get_and_clear_pending_msg_events(); assert_eq!(events.len(), 3); @@ -1560,7 +1563,7 @@ fn test_basic_channel_reserve() { assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send value that would put our balance under counterparty-announced channel reserve value".to_string(), 1); - send_payment(&nodes[0], &vec![&nodes[1]], max_can_send, max_can_send); + send_payment(&nodes[0], &vec![&nodes[1]], max_can_send); } #[test] @@ -1682,7 +1685,8 @@ fn test_fee_spike_violation_fails_htlc() { }, _ => panic!("Unexpected event"), }; - nodes[1].logger.assert_log("lightning::ln::channel".to_string(), "Attempting to fail HTLC due to fee spike buffer violation".to_string(), 1); + nodes[1].logger.assert_log("lightning::ln::channel".to_string(), + format!("Attempting to fail HTLC due to fee spike buffer violation in channel {}. Rebalancing is required.", ::hex::encode(raa_msg.channel_id)), 1); check_added_monitors!(nodes[1], 2); } @@ -1763,7 +1767,7 @@ fn test_chan_reserve_dust_inbound_htlcs_outbound_chan() { // transaction fee with 0 HTLCs (183 sats)). create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 98817000, InitFeatures::known(), InitFeatures::known()); - let dust_amt = 546000; // Dust amount + let dust_amt = 329000; // Dust amount // In the previous code, routing this dust payment would cause nodes[0] to perceive a channel // reserve violation even though it's a dust HTLC and therefore shouldn't count towards the // commitment transaction fee. @@ -1939,7 +1943,7 @@ fn test_channel_reserve_holding_cell_htlcs() { if stat01.value_to_self_msat < stat01.channel_reserve_msat + commit_tx_fee_all_htlcs + ensure_htlc_amounts_above_dust_buffer + amt_msat { break; } - send_payment(&nodes[0], &vec![&nodes[1], &nodes[2]][..], recv_value_0, recv_value_0); + send_payment(&nodes[0], &vec![&nodes[1], &nodes[2]][..], recv_value_0); let (stat01_, stat11_, stat12_, stat22_) = ( get_channel_value_stat!(nodes[0], chan_1.2), @@ -2070,29 +2074,31 @@ fn test_channel_reserve_holding_cell_htlcs() { let events = nodes[2].node.get_and_clear_pending_events(); assert_eq!(events.len(), 2); match events[0] { - Event::PaymentReceived { ref payment_hash, ref payment_secret, amt, user_payment_id: _ } => { + Event::PaymentReceived { ref payment_hash, ref payment_preimage, ref payment_secret, amt, user_payment_id: _ } => { assert_eq!(our_payment_hash_21, *payment_hash); - assert_eq!(Some(our_payment_secret_21), *payment_secret); + assert!(payment_preimage.is_none()); + assert_eq!(our_payment_secret_21, *payment_secret); assert_eq!(recv_value_21, amt); }, _ => panic!("Unexpected event"), } match events[1] { - Event::PaymentReceived { ref payment_hash, ref payment_secret, amt, user_payment_id: _ } => { + Event::PaymentReceived { ref payment_hash, ref payment_preimage, ref payment_secret, amt, user_payment_id: _ } => { assert_eq!(our_payment_hash_22, *payment_hash); - assert_eq!(Some(our_payment_secret_22), *payment_secret); + assert!(payment_preimage.is_none()); + assert_eq!(our_payment_secret_22, *payment_secret); assert_eq!(recv_value_22, amt); }, _ => panic!("Unexpected event"), } - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_1, recv_value_1); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_21, recv_value_21); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_22, recv_value_22); + claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_1); + claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_21); + claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), our_payment_preimage_22); let commit_tx_fee_0_htlcs = 2*commit_tx_fee_msat(feerate, 1); let recv_value_3 = commit_tx_fee_2_htlcs - commit_tx_fee_0_htlcs - total_fee_msat; - send_payment(&nodes[0], &vec![&nodes[1], &nodes[2]][..], recv_value_3, recv_value_3); + send_payment(&nodes[0], &vec![&nodes[1], &nodes[2]][..], recv_value_3); let commit_tx_fee_1_htlc = 2*commit_tx_fee_msat(feerate, 1 + 1); let expected_value_to_self = stat01.value_to_self_msat - (recv_value_1 + total_fee_msat) - (recv_value_21 + total_fee_msat) - (recv_value_22 + total_fee_msat) - (recv_value_3 + total_fee_msat); @@ -2154,13 +2160,13 @@ fn channel_reserve_in_flight_removes() { // Now claim both of the first two HTLCs on B's end, putting B in AwaitingRAA and generating an // initial fulfill/CS. - assert!(nodes[1].node.claim_funds(payment_preimage_1, b_chan_values.channel_reserve_msat - b_chan_values.value_to_self_msat - 10000)); + assert!(nodes[1].node.claim_funds(payment_preimage_1)); check_added_monitors!(nodes[1], 1); let bs_removes = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); // This claim goes in B's holding cell, allowing us to have a pending B->A RAA which does not // remove the second HTLC when we send the HTLC back from B to A. - assert!(nodes[1].node.claim_funds(payment_preimage_2, 20000)); + assert!(nodes[1].node.claim_funds(payment_preimage_2)); check_added_monitors!(nodes[1], 1); assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty()); @@ -2253,8 +2259,8 @@ fn channel_reserve_in_flight_removes() { expect_pending_htlcs_forwardable!(nodes[0]); expect_payment_received!(nodes[0], payment_hash_4, payment_secret_4, 10000); - claim_payment(&nodes[1], &[&nodes[0]], payment_preimage_4, 10_000); - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_3, 100_000); + claim_payment(&nodes[1], &[&nodes[0]], payment_preimage_4); + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_3); } #[test] @@ -2280,10 +2286,10 @@ fn channel_monitor_network_test() { connect_blocks(&nodes[4], 4*CHAN_CONFIRM_DEPTH + 1 - nodes[4].best_block_info().1); // Rebalance the network a bit by relaying one payment through all the channels... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000); // Simple case with no pending HTLCs: nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), true); @@ -2303,12 +2309,15 @@ fn channel_monitor_network_test() { // One pending HTLC is discarded by the force-close: let payment_preimage_1 = route_payment(&nodes[1], &vec!(&nodes[2], &nodes[3])[..], 3000000).0; - // Simple case of one pending HTLC to HTLC-Timeout + // Simple case of one pending HTLC to HTLC-Timeout (note that the HTLC-Timeout is not + // broadcasted until we reach the timelock time). nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), true); check_closed_broadcast!(nodes[1], false); check_added_monitors!(nodes[1], 1); { - let mut node_txn = test_txn_broadcast(&nodes[1], &chan_2, None, HTLCType::TIMEOUT); + let mut node_txn = test_txn_broadcast(&nodes[1], &chan_2, None, HTLCType::NONE); + connect_blocks(&nodes[1], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + MIN_CLTV_EXPIRY_DELTA as u32 + 1); + test_txn_broadcast(&nodes[1], &chan_2, None, HTLCType::TIMEOUT); mine_transaction(&nodes[2], &node_txn[0]); check_added_monitors!(nodes[2], 1); test_txn_broadcast(&nodes[2], &chan_2, None, HTLCType::NONE); @@ -2318,9 +2327,9 @@ fn channel_monitor_network_test() { assert_eq!(nodes[2].node.list_channels().len(), 1); macro_rules! claim_funds { - ($node: expr, $prev_node: expr, $preimage: expr, $amount: expr) => { + ($node: expr, $prev_node: expr, $preimage: expr) => { { - assert!($node.node.claim_funds($preimage, $amount)); + assert!($node.node.claim_funds($preimage)); check_added_monitors!($node, 1); let events = $node.node.get_and_clear_pending_msg_events(); @@ -2344,11 +2353,13 @@ fn channel_monitor_network_test() { check_closed_broadcast!(nodes[2], false); let node2_commitment_txid; { - let node_txn = test_txn_broadcast(&nodes[2], &chan_3, None, HTLCType::TIMEOUT); + let node_txn = test_txn_broadcast(&nodes[2], &chan_3, None, HTLCType::NONE); + connect_blocks(&nodes[2], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + MIN_CLTV_EXPIRY_DELTA as u32 + 1); + test_txn_broadcast(&nodes[2], &chan_3, None, HTLCType::TIMEOUT); node2_commitment_txid = node_txn[0].txid(); // Claim the payment on nodes[3], giving it knowledge of the preimage - claim_funds!(nodes[3], nodes[2], payment_preimage_1, 3_000_000); + claim_funds!(nodes[3], nodes[2], payment_preimage_1); mine_transaction(&nodes[3], &node_txn[0]); check_added_monitors!(nodes[3], 1); check_preimage_claim(&nodes[3], &node_txn); @@ -2397,7 +2408,7 @@ fn channel_monitor_network_test() { let node_txn = test_txn_broadcast(&nodes[3], &chan_4, None, HTLCType::TIMEOUT); // Claim the payment on nodes[4], giving it knowledge of the preimage - claim_funds!(nodes[4], nodes[3], payment_preimage_2, 3_000_000); + claim_funds!(nodes[4], nodes[3], payment_preimage_2); connect_blocks(&nodes[4], TEST_FINAL_CLTV - CLTV_CLAIM_BUFFER + 2); let events = nodes[4].node.get_and_clear_pending_msg_events(); @@ -2462,7 +2473,7 @@ fn test_justice_tx() { assert_eq!(revoked_local_txn[1].input[0].previous_output.txid, revoked_local_txn[0].txid()); assert_eq!(revoked_local_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC-Timeout // Revoke the old state - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_3, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_3); { mine_transaction(&nodes[1], &revoked_local_txn[0]); @@ -2479,6 +2490,7 @@ fn test_justice_tx() { test_txn_broadcast(&nodes[1], &chan_5, None, HTLCType::NONE); mine_transaction(&nodes[0], &revoked_local_txn[0]); + connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires // Verify broadcast of revoked HTLC-timeout let node_txn = test_txn_broadcast(&nodes[0], &chan_5, Some(revoked_local_txn[0].clone()), HTLCType::TIMEOUT); check_added_monitors!(nodes[0], 1); @@ -2508,7 +2520,7 @@ fn test_justice_tx() { assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_6.3.txid()); assert_eq!(revoked_local_txn[0].output.len(), 2); // Only HTLC and output back to A are present // Revoke the old state - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_4, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_4); { mine_transaction(&nodes[0], &revoked_local_txn[0]); { @@ -2548,7 +2560,7 @@ fn revoked_output_claim() { // Only output is the full channel value back to nodes[0]: assert_eq!(revoked_local_txn[0].output.len(), 1); // Send a payment through, updating everyone's latest commitment txn - send_payment(&nodes[0], &vec!(&nodes[1])[..], 5000000, 5_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 5000000); // Inform nodes[1] that nodes[0] broadcast a stale tx mine_transaction(&nodes[1], &revoked_local_txn[0]); @@ -2578,7 +2590,7 @@ fn claim_htlc_outputs_shared_tx() { let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); // Rebalance the network to generate htlc in the two directions - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); // node[0] is gonna to revoke an old state thus node[1] should be able to claim both offered/received HTLC outputs on top of commitment tx let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; let (_payment_preimage_2, payment_hash_2, _) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3000000); @@ -2594,7 +2606,7 @@ fn claim_htlc_outputs_shared_tx() { check_spends!(revoked_local_txn[1], revoked_local_txn[0]); //Revoke the old state - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_1, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_1); { mine_transaction(&nodes[0], &revoked_local_txn[0]); @@ -2605,7 +2617,7 @@ fn claim_htlc_outputs_shared_tx() { expect_payment_failed!(nodes[1], payment_hash_2, true); let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 3); // ChannelMonitor: penalty tx, ChannelManager: local commitment + HTLC-timeout + assert_eq!(node_txn.len(), 2); // ChannelMonitor: penalty tx, ChannelManager: local commitment assert_eq!(node_txn[0].input.len(), 3); // Claim the revoked output + both revoked HTLC outputs check_spends!(node_txn[0], revoked_local_txn[0]); @@ -2622,13 +2634,6 @@ fn claim_htlc_outputs_shared_tx() { // Next nodes[1] broadcasts its current local tx state: assert_eq!(node_txn[1].input.len(), 1); assert_eq!(node_txn[1].input[0].previous_output.txid, chan_1.3.txid()); //Spending funding tx unique txouput, tx broadcasted by ChannelManager - - assert_eq!(node_txn[2].input.len(), 1); - let witness_script = node_txn[2].clone().input[0].witness.pop().unwrap(); - assert_eq!(witness_script.len(), OFFERED_HTLC_SCRIPT_WEIGHT); //Spending an offered htlc output - assert_eq!(node_txn[2].input[0].previous_output.txid, node_txn[1].txid()); - assert_ne!(node_txn[2].input[0].previous_output.txid, node_txn[0].input[0].previous_output.txid); - assert_ne!(node_txn[2].input[0].previous_output.txid, node_txn[0].input[1].previous_output.txid); } get_announce_close_broadcast_events(&nodes, 0, 1); assert_eq!(nodes[0].node.list_channels().len(), 0); @@ -2647,7 +2652,7 @@ fn claim_htlc_outputs_single_tx() { let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); // Rebalance the network to generate htlc in the two directions - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); // node[0] is gonna to revoke an old state thus node[1] should be able to claim both offered/received HTLC outputs on top of commitment tx, but this // time as two different claim transactions as we're gonna to timeout htlc with given a high current height let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0; @@ -2657,7 +2662,7 @@ fn claim_htlc_outputs_single_tx() { let revoked_local_txn = get_local_commitment_txn!(nodes[0], chan_1.2); //Revoke the old state - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_1, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_1); { confirm_transaction_at(&nodes[0], &revoked_local_txn[0], 100); @@ -2732,9 +2737,15 @@ fn test_htlc_on_chain_success() { let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known()); + // Ensure all nodes are at the same height + let node_max_height = nodes.iter().map(|node| node.blocks.lock().unwrap().len()).max().unwrap() as u32; + connect_blocks(&nodes[0], node_max_height - nodes[0].best_block_info().1); + connect_blocks(&nodes[1], node_max_height - nodes[1].best_block_info().1); + connect_blocks(&nodes[2], node_max_height - nodes[2].best_block_info().1); + // Rebalance the network a bit by relaying one payment through all the channels... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); let (our_payment_preimage, _payment_hash, _payment_secret) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000); let (our_payment_preimage_2, _payment_hash_2, _payment_secret_2) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000); @@ -2744,8 +2755,8 @@ fn test_htlc_on_chain_success() { let commitment_tx = get_local_commitment_txn!(nodes[2], chan_2.2); assert_eq!(commitment_tx.len(), 1); check_spends!(commitment_tx[0], chan_2.3); - nodes[2].node.claim_funds(our_payment_preimage, 3_000_000); - nodes[2].node.claim_funds(our_payment_preimage_2, 3_000_000); + nodes[2].node.claim_funds(our_payment_preimage); + nodes[2].node.claim_funds(our_payment_preimage_2); check_added_monitors!(nodes[2], 2); let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); assert!(updates.update_add_htlcs.is_empty()); @@ -2773,6 +2784,7 @@ fn test_htlc_on_chain_success() { // Verify that B's ChannelManager is able to extract preimage from HTLC Success tx and pass it backward let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42}; connect_block(&nodes[1], &Block { header, txdata: node_txn}); + connect_blocks(&nodes[1], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires { let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap(); assert_eq!(added_monitors.len(), 1); @@ -2810,34 +2822,26 @@ fn test_htlc_on_chain_success() { macro_rules! check_tx_local_broadcast { ($node: expr, $htlc_offered: expr, $commitment_tx: expr, $chan_tx: expr) => { { let mut node_txn = $node.tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 5); + assert_eq!(node_txn.len(), 3); // Node[1]: ChannelManager: 3 (commitment tx, 2*HTLC-Timeout tx), ChannelMonitor: 2 (timeout tx) // Node[0]: ChannelManager: 3 (commtiemtn tx, 2*HTLC-Timeout tx), ChannelMonitor: 2 HTLC-timeout - check_spends!(node_txn[0], $commitment_tx); check_spends!(node_txn[1], $commitment_tx); - assert_ne!(node_txn[0].lock_time, 0); + check_spends!(node_txn[2], $commitment_tx); assert_ne!(node_txn[1].lock_time, 0); + assert_ne!(node_txn[2].lock_time, 0); if $htlc_offered { - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output + assert_eq!(node_txn[2].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); assert!(node_txn[1].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output + assert!(node_txn[2].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output } else { - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment + assert_eq!(node_txn[2].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); assert!(node_txn[1].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment + assert!(node_txn[2].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment } - check_spends!(node_txn[2], $chan_tx); - check_spends!(node_txn[3], node_txn[2]); - check_spends!(node_txn[4], node_txn[2]); - assert_eq!(node_txn[2].input[0].witness.last().unwrap().len(), 71); - assert_eq!(node_txn[3].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert_eq!(node_txn[4].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert!(node_txn[3].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - assert!(node_txn[4].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - assert_ne!(node_txn[3].lock_time, 0); - assert_ne!(node_txn[4].lock_time, 0); + check_spends!(node_txn[0], $chan_tx); + assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), 71); node_txn.clear(); } } } @@ -2848,29 +2852,43 @@ fn test_htlc_on_chain_success() { // Broadcast legit commitment tx from A on B's chain // Broadcast preimage tx by B on offered output from A commitment tx on A's chain - let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2); - check_spends!(commitment_tx[0], chan_1.3); - mine_transaction(&nodes[1], &commitment_tx[0]); + let node_a_commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2); + check_spends!(node_a_commitment_tx[0], chan_1.3); + mine_transaction(&nodes[1], &node_a_commitment_tx[0]); check_closed_broadcast!(nodes[1], true); check_added_monitors!(nodes[1], 1); - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 3 (commitment tx + HTLC-Sucess * 2), ChannelMonitor : 1 (HTLC-Success) - assert_eq!(node_txn.len(), 4); - check_spends!(node_txn[0], commitment_tx[0]); - assert_eq!(node_txn[0].input.len(), 2); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert_eq!(node_txn[0].input[1].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert_eq!(node_txn[0].lock_time, 0); - assert!(node_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment - check_spends!(node_txn[1], chan_1.3); - assert_eq!(node_txn[1].input[0].witness.clone().last().unwrap().len(), 71); - check_spends!(node_txn[2], node_txn[1]); - check_spends!(node_txn[3], node_txn[1]); + let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); + assert_eq!(node_txn.len(), 6); // ChannelManager : 3 (commitment tx + HTLC-Sucess * 2), ChannelMonitor : 3 (HTLC-Success, 2* RBF bumps of above HTLC txn) + let commitment_spend = + if node_txn[0].input[0].previous_output.txid == node_a_commitment_tx[0].txid() { + check_spends!(node_txn[1], commitment_tx[0]); + check_spends!(node_txn[2], commitment_tx[0]); + assert_ne!(node_txn[1].input[0].previous_output.vout, node_txn[2].input[0].previous_output.vout); + &node_txn[0] + } else { + check_spends!(node_txn[0], commitment_tx[0]); + check_spends!(node_txn[1], commitment_tx[0]); + assert_ne!(node_txn[0].input[0].previous_output.vout, node_txn[1].input[0].previous_output.vout); + &node_txn[2] + }; + + check_spends!(commitment_spend, node_a_commitment_tx[0]); + assert_eq!(commitment_spend.input.len(), 2); + assert_eq!(commitment_spend.input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + assert_eq!(commitment_spend.input[1].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + assert_eq!(commitment_spend.lock_time, 0); + assert!(commitment_spend.output[0].script_pubkey.is_v0_p2wpkh()); // direct payment + check_spends!(node_txn[3], chan_1.3); + assert_eq!(node_txn[3].input[0].witness.clone().last().unwrap().len(), 71); + check_spends!(node_txn[4], node_txn[3]); + check_spends!(node_txn[5], node_txn[3]); // We don't bother to check that B can claim the HTLC output on its commitment tx here as // we already checked the same situation with A. // Verify that A's ChannelManager is able to extract preimage from preimage tx and generate PaymentSent let mut header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42}; - connect_block(&nodes[0], &Block { header, txdata: vec![commitment_tx[0].clone(), node_txn[0].clone()] }); + connect_block(&nodes[0], &Block { header, txdata: vec![node_a_commitment_tx[0].clone(), commitment_spend.clone()] }); + connect_blocks(&nodes[0], TEST_FINAL_CLTV + MIN_CLTV_EXPIRY_DELTA as u32 - 1); // Confirm blocks until the HTLC expires check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); let events = nodes[0].node.get_and_clear_pending_events(); @@ -2889,7 +2907,7 @@ fn test_htlc_on_chain_success() { _ => panic!("Unexpected event"), } } - check_tx_local_broadcast!(nodes[0], true, commitment_tx[0], chan_1.3); + check_tx_local_broadcast!(nodes[0], true, node_a_commitment_tx[0], chan_1.3); } fn do_test_htlc_on_chain_timeout(connect_style: ConnectStyle) { @@ -2914,8 +2932,8 @@ fn do_test_htlc_on_chain_timeout(connect_style: ConnectStyle) { let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known()); // Rebalance the network a bit by relaying one payment thorugh all the channels... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); let (_payment_preimage, payment_hash, _payment_secret) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000); @@ -2982,10 +3000,16 @@ fn do_test_htlc_on_chain_timeout(connect_style: ConnectStyle) { connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); { - // B will rebroadcast its own holder commitment transaction here...just because + // B may rebroadcast its own holder commitment transaction here, as a safeguard against + // some incredibly unlikely partial-eclipse-attack scenarios. That said, because the + // original commitment_tx[0] (also spending chan_2.3) has reached ANTI_REORG_DELAY B really + // shouldn't broadcast anything here, and in some connect style scenarios we do not. let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0); - assert_eq!(node_txn.len(), 1); - check_spends!(node_txn[0], chan_2.3); + if node_txn.len() == 1 { + check_spends!(node_txn[0], chan_2.3); + } else { + assert_eq!(node_txn.len(), 0); + } } expect_pending_htlcs_forwardable!(nodes[1]); @@ -3008,17 +3032,16 @@ fn do_test_htlc_on_chain_timeout(connect_style: ConnectStyle) { check_spends!(commitment_tx[0], chan_1.3); mine_transaction(&nodes[0], &commitment_tx[0]); + connect_blocks(&nodes[0], TEST_FINAL_CLTV + MIN_CLTV_EXPIRY_DELTA as u32 - 1); // Confirm blocks until the HTLC expires check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); - let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 2 (commitment tx, HTLC-Timeout tx), ChannelMonitor : 1 timeout tx - assert_eq!(node_txn.len(), 3); - check_spends!(node_txn[0], commitment_tx[0]); - assert_eq!(node_txn[0].clone().input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[1], chan_1.3); - check_spends!(node_txn[2], node_txn[1]); - assert_eq!(node_txn[1].clone().input[0].witness.last().unwrap().len(), 71); - assert_eq!(node_txn[2].clone().input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); // ChannelManager : 1 commitment tx, ChannelMonitor : 1 timeout tx + assert_eq!(node_txn.len(), 2); + check_spends!(node_txn[0], chan_1.3); + assert_eq!(node_txn[0].clone().input[0].witness.last().unwrap().len(), 71); + check_spends!(node_txn[1], commitment_tx[0]); + assert_eq!(node_txn[1].clone().input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); } #[test] @@ -3046,7 +3069,7 @@ fn test_simple_commitment_revoked_fail_backward() { // Get the will-be-revoked local txn from nodes[2] let revoked_local_txn = get_local_commitment_txn!(nodes[2], chan_2.2); // Revoke the old state - claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage, 3_000_000); + claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage); let (_, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000); @@ -3069,13 +3092,7 @@ fn test_simple_commitment_revoked_fail_backward() { nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[0]); commitment_signed_dance!(nodes[0], nodes[1], commitment_signed, false, true); - - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } + expect_payment_failure_chan_update!(nodes[0], chan_2.0.contents.short_channel_id, true); expect_payment_failed!(nodes[0], payment_hash, false); }, _ => panic!("Unexpected event"), @@ -3112,7 +3129,7 @@ fn do_test_commitment_revoked_fail_backward_exhaustive(deliver_bs_raa: bool, use let revoked_local_txn = get_local_commitment_txn!(nodes[2], chan_2.2); assert_eq!(revoked_local_txn[0].output.len(), if no_to_remote { 1 } else { 2 }); // Revoke the old state - claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage, if no_to_remote { 10_000 } else { 3_000_000}); + claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage); let value = if use_dust { // The dust limit applied to HTLC outputs considers the fee of the HTLC transaction as @@ -3397,11 +3414,13 @@ fn test_htlc_ignore_latest_remote_commitment() { route_payment(&nodes[0], &[&nodes[1]], 10000000); nodes[0].node.force_close_channel(&nodes[0].node.list_channels()[0].channel_id).unwrap(); + connect_blocks(&nodes[0], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + 1); check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 2); + assert_eq!(node_txn.len(), 3); + assert_eq!(node_txn[0], node_txn[1]); let mut header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[0].clone(), node_txn[1].clone()]}); @@ -3411,7 +3430,7 @@ fn test_htlc_ignore_latest_remote_commitment() { // Duplicate the connect_block call since this may happen due to other listeners // registering new transactions header.prev_blockhash = header.block_hash(); - connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[0].clone(), node_txn[1].clone()]}); + connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[0].clone(), node_txn[2].clone()]}); } #[test] @@ -3493,6 +3512,34 @@ fn test_force_close_fail_back() { check_spends!(node_txn[0], tx); } +#[test] +fn test_dup_events_on_peer_disconnect() { + // Test that if we receive a duplicative update_fulfill_htlc message after a reconnect we do + // not generate a corresponding duplicative PaymentSent event. This did not use to be the case + // as we used to generate the event immediately upon receipt of the payment preimage in the + // update_fulfill_htlc message. + + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); + + let payment_preimage = route_payment(&nodes[0], &[&nodes[1]], 1000000).0; + + assert!(nodes[1].node.claim_funds(payment_preimage)); + check_added_monitors!(nodes[1], 1); + let claim_msgs = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); + nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &claim_msgs.update_fulfill_htlcs[0]); + expect_payment_sent!(nodes[0], payment_preimage); + + nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + + reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (1, 0), (0, 0), (0, 0), (false, false)); + assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); +} + #[test] fn test_simple_peer_disconnect() { // Test that we can reconnect when there are no lost messages @@ -3510,7 +3557,7 @@ fn test_simple_peer_disconnect() { let payment_preimage_1 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).0; let payment_hash_2 = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 1000000).1; fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_hash_2); - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_1, 1_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_1); nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); @@ -3524,7 +3571,7 @@ fn test_simple_peer_disconnect() { nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - claim_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], true, payment_preimage_3, 1_000_000); + claim_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], true, payment_preimage_3); fail_payment_along_route(&nodes[0], &[&nodes[1], &nodes[2]], true, payment_hash_5); reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (1, 0), (1, 0), (false, false)); @@ -3546,19 +3593,24 @@ fn test_simple_peer_disconnect() { } } - claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_4, 1_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_preimage_4); fail_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), payment_hash_6); } -fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) { +fn do_test_drop_messages_peer_disconnect(messages_delivered: u8, simulate_broken_lnd: bool) { // Test that we can reconnect when in-flight HTLC updates get dropped let chanmon_cfgs = create_chanmon_cfgs(2); let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + let mut as_funding_locked = None; if messages_delivered == 0 { - create_chan_between_nodes_with_value_a(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known()); + let (funding_locked, _, _) = create_chan_between_nodes_with_value_a(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known()); + as_funding_locked = Some(funding_locked); // nodes[1] doesn't receive the funding_locked message (it'll be re-sent on reconnect) + // Note that we store it so that if we're running with `simulate_broken_lnd` we can deliver + // it before the channel_reestablish message. } else { create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); } @@ -3613,6 +3665,17 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) { nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); if messages_delivered < 3 { + if simulate_broken_lnd { + // lnd has a long-standing bug where they send a funding_locked prior to a + // channel_reestablish if you reconnect prior to funding_locked time. + // + // Here we simulate that behavior, delivering a funding_locked immediately on + // reconnect. Note that we don't bother skipping the now-duplicate funding_locked sent + // in `reconnect_nodes` but we currently don't fail based on that. + // + // See-also + nodes[1].node.handle_funding_locked(&nodes[0].node.get_our_node_id(), &as_funding_locked.as_ref().unwrap().0); + } // Even if the funding_locked messages get exchanged, as long as nothing further was // received on either side, both sides will need to resend them. reconnect_nodes(&nodes[0], &nodes[1], (true, true), (0, 1), (0, 0), (0, 0), (0, 0), (false, false)); @@ -3646,15 +3709,16 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) { let events_2 = nodes[1].node.get_and_clear_pending_events(); assert_eq!(events_2.len(), 1); match events_2[0] { - Event::PaymentReceived { ref payment_hash, ref payment_secret, amt, user_payment_id: _ } => { + Event::PaymentReceived { ref payment_hash, ref payment_preimage, ref payment_secret, amt, user_payment_id: _ } => { assert_eq!(payment_hash_1, *payment_hash); - assert_eq!(Some(payment_secret_1), *payment_secret); + assert!(payment_preimage.is_none()); + assert_eq!(payment_secret_1, *payment_secret); assert_eq!(amt, 1000000); }, _ => panic!("Unexpected event"), } - nodes[1].node.claim_funds(payment_preimage_1, 1_000_000); + nodes[1].node.claim_funds(payment_preimage_1); check_added_monitors!(nodes[1], 1); let events_3 = nodes[1].node.get_and_clear_pending_msg_events(); @@ -3714,8 +3778,7 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) { nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); if messages_delivered < 2 { reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (1, 0), (0, 0), (0, 0), (false, false)); - //TODO: Deduplicate PaymentSent events, then enable this if: - //if messages_delivered < 1 { + if messages_delivered < 1 { let events_4 = nodes[0].node.get_and_clear_pending_events(); assert_eq!(events_4.len(), 1); match events_4[0] { @@ -3724,7 +3787,9 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) { }, _ => panic!("Unexpected event"), } - //} + } else { + assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); + } } else if messages_delivered == 2 { // nodes[0] still wants its RAA + commitment_signed reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, -1), (0, 0), (0, 0), (0, 0), (false, true)); @@ -3749,22 +3814,23 @@ fn do_test_drop_messages_peer_disconnect(messages_delivered: u8) { &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), Some(&nodes[0].node.list_usable_channels().iter().collect::>()), &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap(); let payment_preimage_2 = send_along_route(&nodes[0], route, &[&nodes[1]], 1000000).0; - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2, 1_000_000); + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2); } #[test] fn test_drop_messages_peer_disconnect_a() { - do_test_drop_messages_peer_disconnect(0); - do_test_drop_messages_peer_disconnect(1); - do_test_drop_messages_peer_disconnect(2); - do_test_drop_messages_peer_disconnect(3); + do_test_drop_messages_peer_disconnect(0, true); + do_test_drop_messages_peer_disconnect(0, false); + do_test_drop_messages_peer_disconnect(1, false); + do_test_drop_messages_peer_disconnect(2, false); } #[test] fn test_drop_messages_peer_disconnect_b() { - do_test_drop_messages_peer_disconnect(4); - do_test_drop_messages_peer_disconnect(5); - do_test_drop_messages_peer_disconnect(6); + do_test_drop_messages_peer_disconnect(3, false); + do_test_drop_messages_peer_disconnect(4, false); + do_test_drop_messages_peer_disconnect(5, false); + do_test_drop_messages_peer_disconnect(6, false); } #[test] @@ -3773,7 +3839,10 @@ fn test_funding_peer_disconnect() { let chanmon_cfgs = create_chanmon_cfgs(2); let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); - let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + let persister: test_utils::TestPersister; + let new_chain_monitor: test_utils::TestChainMonitor; + let nodes_0_deserialized: ChannelManager; + let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs); let tx = create_chan_between_nodes_with_value_init(&nodes[0], &nodes[1], 100000, 10001, InitFeatures::known(), InitFeatures::known()); nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); @@ -3850,7 +3919,62 @@ fn test_funding_peer_disconnect() { let logger = test_utils::TestLogger::new(); let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 1000000, TEST_FINAL_CLTV, &logger).unwrap(); let (payment_preimage, _, _) = send_along_route(&nodes[0], route, &[&nodes[1]], 1000000); - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage, 1_000_000); + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage); + + // Check that after deserialization and reconnection we can still generate an identical + // channel_announcement from the cached signatures. + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + + let nodes_0_serialized = nodes[0].node.encode(); + let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new()); + nodes[0].chain_monitor.chain_monitor.monitors.read().unwrap().iter().next().unwrap().1.write(&mut chan_0_monitor_serialized).unwrap(); + + persister = test_utils::TestPersister::new(); + let keys_manager = &chanmon_cfgs[0].keys_manager; + new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[0].chain_source), nodes[0].tx_broadcaster.clone(), nodes[0].logger, node_cfgs[0].fee_estimator, &persister, keys_manager); + nodes[0].chain_monitor = &new_chain_monitor; + let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..]; + let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor)>::read( + &mut chan_0_monitor_read, keys_manager).unwrap(); + assert!(chan_0_monitor_read.is_empty()); + + let mut nodes_0_read = &nodes_0_serialized[..]; + let (_, nodes_0_deserialized_tmp) = { + let mut channel_monitors = HashMap::new(); + channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor); + <(BlockHash, ChannelManager)>::read(&mut nodes_0_read, ChannelManagerReadArgs { + default_config: UserConfig::default(), + keys_manager, + fee_estimator: node_cfgs[0].fee_estimator, + chain_monitor: nodes[0].chain_monitor, + tx_broadcaster: nodes[0].tx_broadcaster.clone(), + logger: nodes[0].logger, + channel_monitors, + }).unwrap() + }; + nodes_0_deserialized = nodes_0_deserialized_tmp; + assert!(nodes_0_read.is_empty()); + + assert!(nodes[0].chain_monitor.watch_channel(chan_0_monitor.get_funding_txo().0, chan_0_monitor).is_ok()); + nodes[0].node = &nodes_0_deserialized; + check_added_monitors!(nodes[0], 1); + + reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); + + // as_announcement should be re-generated exactly by broadcast_node_announcement. + nodes[0].node.broadcast_node_announcement([0, 0, 0], [0; 32], Vec::new()); + let msgs = nodes[0].node.get_and_clear_pending_msg_events(); + let mut found_announcement = false; + for event in msgs.iter() { + match event { + MessageSendEvent::BroadcastChannelAnnouncement { ref msg, .. } => { + if *msg == as_announcement { found_announcement = true; } + }, + MessageSendEvent::BroadcastNodeAnnouncement { .. } => {}, + _ => panic!("Unexpected event"), + } + } + assert!(found_announcement); } #[test] @@ -3880,7 +4004,7 @@ fn test_drop_messages_peer_disconnect_dual_htlc() { _ => panic!("Unexpected event"), } - assert!(nodes[1].node.claim_funds(payment_preimage_1, 1_000_000)); + assert!(nodes[1].node.claim_funds(payment_preimage_1)); check_added_monitors!(nodes[1], 1); let events_2 = nodes[1].node.get_and_clear_pending_msg_events(); @@ -3983,9 +4107,10 @@ fn test_drop_messages_peer_disconnect_dual_htlc() { let events_5 = nodes[1].node.get_and_clear_pending_events(); assert_eq!(events_5.len(), 1); match events_5[0] { - Event::PaymentReceived { ref payment_hash, ref payment_secret, amt: _, user_payment_id: _ } => { + Event::PaymentReceived { ref payment_hash, ref payment_preimage, ref payment_secret, amt: _, user_payment_id: _ } => { assert_eq!(payment_hash_2, *payment_hash); - assert_eq!(Some(payment_secret_2), *payment_secret); + assert!(payment_preimage.is_none()); + assert_eq!(payment_secret_2, *payment_secret); }, _ => panic!("Unexpected event"), } @@ -3994,7 +4119,7 @@ fn test_drop_messages_peer_disconnect_dual_htlc() { assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); check_added_monitors!(nodes[0], 1); - claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2, 1_000_000); + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2); } fn do_test_htlc_timeout(send_partial_mpp: bool) { @@ -4033,7 +4158,8 @@ fn do_test_htlc_timeout(send_partial_mpp: bool) { }; connect_block(&nodes[0], &block); connect_block(&nodes[1], &block); - for _ in CHAN_CONFIRM_DEPTH + 2 ..TEST_FINAL_CLTV + CHAN_CONFIRM_DEPTH + 2 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS { + let block_count = TEST_FINAL_CLTV + CHAN_CONFIRM_DEPTH + 2 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS; + for _ in CHAN_CONFIRM_DEPTH + 2..block_count { block.header.prev_blockhash = block.block_hash(); connect_block(&nodes[0], &block); connect_block(&nodes[1], &block); @@ -4050,9 +4176,9 @@ fn do_test_htlc_timeout(send_partial_mpp: bool) { nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &htlc_timeout_updates.update_fail_htlcs[0]); commitment_signed_dance!(nodes[0], nodes[1], htlc_timeout_updates.commitment_signed, false); - // 100_000 msat as u64, followed by a height of TEST_FINAL_CLTV + 2 as u32 + // 100_000 msat as u64, followed by the height at which we failed back above let mut expected_failure_data = byte_utils::be64_to_array(100_000).to_vec(); - expected_failure_data.extend_from_slice(&byte_utils::be32_to_array(TEST_FINAL_CLTV + 2)); + expected_failure_data.extend_from_slice(&byte_utils::be32_to_array(block_count - 1)); expect_payment_failed!(nodes[0], our_payment_hash, true, 0x4000 | 15, &expected_failure_data[..]); } @@ -4069,7 +4195,7 @@ fn do_test_holding_cell_htlc_add_timeouts(forwarded_htlc: bool) { let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]); let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs); create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); - create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known()); + let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known()); // Make sure all nodes are at the same starting height connect_blocks(&nodes[0], 2*CHAN_CONFIRM_DEPTH + 1 - nodes[0].best_block_info().1); @@ -4125,14 +4251,7 @@ fn do_test_holding_cell_htlc_add_timeouts(forwarded_htlc: bool) { _ => unreachable!(), } expect_payment_failed!(nodes[0], second_payment_hash, false); - if let &MessageSendEvent::PaymentFailureNetworkUpdate { ref update } = &nodes[0].node.get_and_clear_pending_msg_events()[0] { - match update { - &HTLCFailChannelUpdate::ChannelUpdateMessage { .. } => {}, - _ => panic!("Unexpected event"), - } - } else { - panic!("Unexpected event"); - } + expect_payment_failure_chan_update!(nodes[0], chan_2.0.contents.short_channel_id, false); } else { expect_payment_failed!(nodes[1], second_payment_hash, true); } @@ -4293,7 +4412,114 @@ fn test_no_txn_manager_serialize_deserialize() { node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap(); } - send_payment(&nodes[0], &[&nodes[1]], 1000000, 1_000_000); + send_payment(&nodes[0], &[&nodes[1]], 1000000); +} + +#[test] +fn test_dup_htlc_onchain_fails_on_reload() { + // When a Channel is closed, any outbound HTLCs which were relayed through it are simply + // dropped when the Channel is. From there, the ChannelManager relies on the ChannelMonitor + // having a copy of the relevant fail-/claim-back data and processes the HTLC fail/claim when + // the ChannelMonitor tells it to. + // + // If, due to an on-chain event, an HTLC is failed/claimed, and then we serialize the + // ChannelManager, we generally expect there not to be a duplicate HTLC fail/claim (eg via a + // PaymentFailed event appearing). However, because we may not serialize the relevant + // ChannelMonitor at the same time, this isn't strictly guaranteed. In order to provide this + // consistency, the ChannelManager explicitly tracks pending-onchain-resolution outbound HTLCs + // and de-duplicates ChannelMonitor events. + // + // This tests that explicit tracking behavior. + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let persister: test_utils::TestPersister; + let new_chain_monitor: test_utils::TestChainMonitor; + let nodes_0_deserialized: ChannelManager; + let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); + + // Route a payment, but force-close the channel before the HTLC fulfill message arrives at + // nodes[0]. + let (payment_preimage, _, _) = route_payment(&nodes[0], &[&nodes[1]], 10000000); + nodes[0].node.force_close_channel(&nodes[0].node.list_channels()[0].channel_id).unwrap(); + check_closed_broadcast!(nodes[0], true); + check_added_monitors!(nodes[0], 1); + + nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); + + // Connect blocks until the CLTV timeout is up so that we get an HTLC-Timeout transaction + connect_blocks(&nodes[0], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + 1); + let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0); + assert_eq!(node_txn.len(), 3); + assert_eq!(node_txn[0], node_txn[1]); + + assert!(nodes[1].node.claim_funds(payment_preimage)); + check_added_monitors!(nodes[1], 1); + + let mut header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[1].clone(), node_txn[2].clone()]}); + check_closed_broadcast!(nodes[1], true); + check_added_monitors!(nodes[1], 1); + let claim_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0); + + header.prev_blockhash = nodes[0].best_block_hash(); + connect_block(&nodes[0], &Block { header, txdata: vec![node_txn[1].clone(), node_txn[2].clone()]}); + + // Serialize out the ChannelMonitor before connecting the on-chain claim transactions. This is + // fairly normal behavior as ChannelMonitor(s) are often not re-serialized when on-chain events + // happen, unlike ChannelManager which tends to be re-serialized after any relevant event(s). + let mut chan_0_monitor_serialized = test_utils::TestVecWriter(Vec::new()); + nodes[0].chain_monitor.chain_monitor.monitors.read().unwrap().iter().next().unwrap().1.write(&mut chan_0_monitor_serialized).unwrap(); + + header.prev_blockhash = nodes[0].best_block_hash(); + let claim_block = Block { header, txdata: claim_txn}; + connect_block(&nodes[0], &claim_block); + expect_payment_sent!(nodes[0], payment_preimage); + + // ChannelManagers generally get re-serialized after any relevant event(s). Since we just + // connected a highly-relevant block, it likely gets serialized out now. + let mut chan_manager_serialized = test_utils::TestVecWriter(Vec::new()); + nodes[0].node.write(&mut chan_manager_serialized).unwrap(); + + // Now reload nodes[0]... + persister = test_utils::TestPersister::new(); + let keys_manager = &chanmon_cfgs[0].keys_manager; + new_chain_monitor = test_utils::TestChainMonitor::new(Some(nodes[0].chain_source), nodes[0].tx_broadcaster.clone(), nodes[0].logger, node_cfgs[0].fee_estimator, &persister, keys_manager); + nodes[0].chain_monitor = &new_chain_monitor; + let mut chan_0_monitor_read = &chan_0_monitor_serialized.0[..]; + let (_, mut chan_0_monitor) = <(BlockHash, ChannelMonitor)>::read( + &mut chan_0_monitor_read, keys_manager).unwrap(); + assert!(chan_0_monitor_read.is_empty()); + + let (_, nodes_0_deserialized_tmp) = { + let mut channel_monitors = HashMap::new(); + channel_monitors.insert(chan_0_monitor.get_funding_txo().0, &mut chan_0_monitor); + <(BlockHash, ChannelManager)> + ::read(&mut std::io::Cursor::new(&chan_manager_serialized.0[..]), ChannelManagerReadArgs { + default_config: Default::default(), + keys_manager, + fee_estimator: node_cfgs[0].fee_estimator, + chain_monitor: nodes[0].chain_monitor, + tx_broadcaster: nodes[0].tx_broadcaster.clone(), + logger: nodes[0].logger, + channel_monitors, + }).unwrap() + }; + nodes_0_deserialized = nodes_0_deserialized_tmp; + + assert!(nodes[0].chain_monitor.watch_channel(chan_0_monitor.get_funding_txo().0, chan_0_monitor).is_ok()); + check_added_monitors!(nodes[0], 1); + nodes[0].node = &nodes_0_deserialized; + + // Note that if we re-connect the block which exposed nodes[0] to the payment preimage (but + // which the current ChannelMonitor has not seen), the ChannelManager's de-duplication of + // payment events should kick in, leaving us with no pending events here. + let height = nodes[0].blocks.lock().unwrap().len() as u32 - 1; + nodes[0].chain_monitor.chain_monitor.block_connected(&claim_block, height); + assert!(nodes[0].node.get_and_clear_pending_events().is_empty()); } #[test] @@ -4412,7 +4638,7 @@ fn test_manager_serialize_deserialize_events() { node.net_graph_msg_handler.handle_channel_update(&bs_update).unwrap(); } - send_payment(&nodes[0], &[&nodes[1]], 1000000, 1_000_000); + send_payment(&nodes[0], &[&nodes[1]], 1000000); } #[test] @@ -4472,7 +4698,7 @@ fn test_simple_manager_serialize_deserialize() { reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); fail_payment(&nodes[0], &[&nodes[1]], our_payment_hash); - claim_payment(&nodes[0], &[&nodes[1]], our_payment_preimage, 1_000_000); + claim_payment(&nodes[0], &[&nodes[1]], our_payment_preimage); } #[test] @@ -4569,11 +4795,11 @@ fn test_manager_serialize_deserialize_inconsistent_monitor() { nodes_0_deserialized = nodes_0_deserialized_tmp; assert!(nodes_0_read.is_empty()); - { // Channel close should result in a commitment tx and an HTLC tx + { // Channel close should result in a commitment tx let txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(txn.len(), 2); + assert_eq!(txn.len(), 1); + check_spends!(txn[0], funding_tx); assert_eq!(txn[0].input[0].previous_output.txid, funding_tx.txid()); - assert_eq!(txn[1].input[0].previous_output.txid, txn[0].txid()); } for monitor in node_0_monitors.drain(..) { @@ -4586,7 +4812,7 @@ fn test_manager_serialize_deserialize_inconsistent_monitor() { reconnect_nodes(&nodes[0], &nodes[1], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); reconnect_nodes(&nodes[0], &nodes[2], (false, false), (0, 0), (0, 0), (0, 0), (0, 0), (false, false)); //... and we can even still claim the payment! - claim_payment(&nodes[2], &[&nodes[0], &nodes[1]], our_payment_preimage, 1_000_000); + claim_payment(&nodes[2], &[&nodes[0], &nodes[1]], our_payment_preimage); nodes[3].node.peer_connected(&nodes[0].node.get_our_node_id(), &msgs::Init { features: InitFeatures::empty() }); let reestablish = get_event_msg!(nodes[3], MessageSendEvent::SendChannelReestablish, nodes[0].node.get_our_node_id()); @@ -4605,7 +4831,7 @@ fn test_manager_serialize_deserialize_inconsistent_monitor() { } macro_rules! check_spendable_outputs { - ($node: expr, $der_idx: expr, $keysinterface: expr, $chan_value: expr) => { + ($node: expr, $keysinterface: expr) => { { let mut events = $node.chain_monitor.chain_monitor.get_and_clear_pending_events(); let mut txn = Vec::new(); @@ -4650,11 +4876,13 @@ fn test_claim_sizeable_push_msat() { assert_eq!(node_txn[0].output.len(), 2); // We can't force trimming of to_remote output as channel_reserve_satoshis block us to do so at channel opening mine_transaction(&nodes[1], &node_txn[0]); - connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); + connect_blocks(&nodes[1], BREAKDOWN_TIMEOUT as u32 - 1); - let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 1); + assert_eq!(spend_txn[0].input.len(), 1); check_spends!(spend_txn[0], node_txn[0]); + assert_eq!(spend_txn[0].input[0].sequence, BREAKDOWN_TIMEOUT as u32); } #[test] @@ -4681,7 +4909,7 @@ fn test_claim_on_remote_sizeable_push_msat() { check_added_monitors!(nodes[1], 1); connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); - let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 1); check_spends!(spend_txn[0], node_txn[0]); } @@ -4702,7 +4930,7 @@ fn test_claim_on_remote_revoked_sizeable_push_msat() { assert_eq!(revoked_local_txn[0].input.len(), 1); assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan.3.txid()); - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); mine_transaction(&nodes[1], &revoked_local_txn[0]); check_closed_broadcast!(nodes[1], true); check_added_monitors!(nodes[1], 1); @@ -4711,7 +4939,7 @@ fn test_claim_on_remote_revoked_sizeable_push_msat() { mine_transaction(&nodes[1], &node_txn[0]); connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); - let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 3); check_spends!(spend_txn[0], revoked_local_txn[0]); // to_remote output on revoked remote commitment_tx check_spends!(spend_txn[1], node_txn[0]); @@ -4735,7 +4963,7 @@ fn test_static_spendable_outputs_preimage_tx() { assert_eq!(commitment_tx[0].input[0].previous_output.txid, chan_1.3.txid()); // Settle A's commitment tx on B's chain - assert!(nodes[1].node.claim_funds(payment_preimage, 3_000_000)); + assert!(nodes[1].node.claim_funds(payment_preimage)); check_added_monitors!(nodes[1], 1); mine_transaction(&nodes[1], &commitment_tx[0]); check_added_monitors!(nodes[1], 1); @@ -4760,7 +4988,7 @@ fn test_static_spendable_outputs_preimage_tx() { mine_transaction(&nodes[1], &node_txn[0]); connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); - let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 1); check_spends!(spend_txn[0], node_txn[0]); } @@ -4776,7 +5004,7 @@ fn test_static_spendable_outputs_timeout_tx() { let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); // Rebalance the network a bit by relaying one payment through all the channels ... - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); let (_, our_payment_hash, _) = route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000); @@ -4792,24 +5020,24 @@ fn test_static_spendable_outputs_timeout_tx() { MessageSendEvent::BroadcastChannelUpdate { .. } => {}, _ => panic!("Unexpected event"), } + connect_blocks(&nodes[1], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires // Check B's monitor was able to send back output descriptor event for timeout tx on A's commitment tx - let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 3); // ChannelManager : 2 (local commitent tx + HTLC-timeout), ChannelMonitor: timeout tx - check_spends!(node_txn[0], commitment_tx[0].clone()); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[1], chan_1.3.clone()); - check_spends!(node_txn[2], node_txn[1]); + let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0); + assert_eq!(node_txn.len(), 2); // ChannelManager : 1 local commitent tx, ChannelMonitor: timeout tx + check_spends!(node_txn[0], chan_1.3.clone()); + check_spends!(node_txn[1], commitment_tx[0].clone()); + assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - mine_transaction(&nodes[1], &node_txn[0]); + mine_transaction(&nodes[1], &node_txn[1]); connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); expect_payment_failed!(nodes[1], our_payment_hash, true); - let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 3); // SpendableOutput: remote_commitment_tx.to_remote, timeout_tx.output check_spends!(spend_txn[0], commitment_tx[0]); - check_spends!(spend_txn[1], node_txn[0]); - check_spends!(spend_txn[2], node_txn[0], commitment_tx[0]); // All outputs + check_spends!(spend_txn[1], node_txn[1]); + check_spends!(spend_txn[2], node_txn[1], commitment_tx[0]); // All outputs } #[test] @@ -4827,7 +5055,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_commitment_tx() { assert_eq!(revoked_local_txn[0].input.len(), 1); assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid()); - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); mine_transaction(&nodes[1], &revoked_local_txn[0]); check_closed_broadcast!(nodes[1], true); @@ -4841,7 +5069,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_commitment_tx() { mine_transaction(&nodes[1], &node_txn[0]); connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); - let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 1); check_spends!(spend_txn[0], node_txn[0]); } @@ -4862,41 +5090,43 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() { assert_eq!(revoked_local_txn[0].input.len(), 1); assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan_1.3.txid()); - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); // A will generate HTLC-Timeout from revoked commitment tx mine_transaction(&nodes[0], &revoked_local_txn[0]); check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); + connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires let revoked_htlc_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); assert_eq!(revoked_htlc_txn.len(), 2); - assert_eq!(revoked_htlc_txn[0].input.len(), 1); - assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]); - check_spends!(revoked_htlc_txn[1], chan_1.3); + check_spends!(revoked_htlc_txn[0], chan_1.3); + assert_eq!(revoked_htlc_txn[1].input.len(), 1); + assert_eq!(revoked_htlc_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + check_spends!(revoked_htlc_txn[1], revoked_local_txn[0]); + assert_ne!(revoked_htlc_txn[1].lock_time, 0); // HTLC-Timeout // B will generate justice tx from A's revoked commitment/HTLC tx let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - connect_block(&nodes[1], &Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone()] }); + connect_block(&nodes[1], &Block { header, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[1].clone()] }); check_closed_broadcast!(nodes[1], true); check_added_monitors!(nodes[1], 1); let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); assert_eq!(node_txn.len(), 3); // ChannelMonitor: bogus justice tx, justice tx on revoked outputs, ChannelManager: local commitment tx // The first transaction generated is bogus - it spends both outputs of revoked_local_txn[0] - // including the one already spent by revoked_htlc_txn[0]. That's OK, we'll spend with valid + // including the one already spent by revoked_htlc_txn[1]. That's OK, we'll spend with valid // transactions next... assert_eq!(node_txn[0].input.len(), 3); - check_spends!(node_txn[0], revoked_local_txn[0], revoked_htlc_txn[0]); + check_spends!(node_txn[0], revoked_local_txn[0], revoked_htlc_txn[1]); assert_eq!(node_txn[1].input.len(), 2); - check_spends!(node_txn[1], revoked_local_txn[0], revoked_htlc_txn[0]); - if node_txn[1].input[1].previous_output.txid == revoked_htlc_txn[0].txid() { - assert_ne!(node_txn[1].input[0].previous_output, revoked_htlc_txn[0].input[0].previous_output); + check_spends!(node_txn[1], revoked_local_txn[0], revoked_htlc_txn[1]); + if node_txn[1].input[1].previous_output.txid == revoked_htlc_txn[1].txid() { + assert_ne!(node_txn[1].input[0].previous_output, revoked_htlc_txn[1].input[0].previous_output); } else { - assert_eq!(node_txn[1].input[0].previous_output.txid, revoked_htlc_txn[0].txid()); - assert_ne!(node_txn[1].input[1].previous_output, revoked_htlc_txn[0].input[0].previous_output); + assert_eq!(node_txn[1].input[0].previous_output.txid, revoked_htlc_txn[1].txid()); + assert_ne!(node_txn[1].input[1].previous_output, revoked_htlc_txn[1].input[0].previous_output); } assert_eq!(node_txn[2].input.len(), 1); @@ -4906,7 +5136,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_timeout_tx() { connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); // Check B's ChannelMonitor was able to generate the right spendable output descriptor - let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 1); assert_eq!(spend_txn[0].input.len(), 1); check_spends!(spend_txn[0], node_txn[1]); @@ -4931,7 +5161,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() { // The to-be-revoked commitment tx should have one HTLC and one to_remote output assert_eq!(revoked_local_txn[0].output.len(), 2); - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); // B will generate HTLC-Success from revoked commitment tx mine_transaction(&nodes[1], &revoked_local_txn[0]); @@ -4981,7 +5211,7 @@ fn test_static_spendable_outputs_justice_tx_revoked_htlc_success_tx() { // didn't try to generate any new transactions. // Check A's ChannelMonitor was able to generate the right spendable output descriptor - let spend_txn = check_spendable_outputs!(nodes[0], 1, node_cfgs[0].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[0], node_cfgs[0].keys_manager); assert_eq!(spend_txn.len(), 3); assert_eq!(spend_txn[0].input.len(), 1); check_spends!(spend_txn[0], revoked_local_txn[0]); // spending to_remote output from revoked local tx @@ -5009,14 +5239,20 @@ fn test_onchain_to_onchain_claim() { let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known()); + // Ensure all nodes are at the same height + let node_max_height = nodes.iter().map(|node| node.blocks.lock().unwrap().len()).max().unwrap() as u32; + connect_blocks(&nodes[0], node_max_height - nodes[0].best_block_info().1); + connect_blocks(&nodes[1], node_max_height - nodes[1].best_block_info().1); + connect_blocks(&nodes[2], node_max_height - nodes[2].best_block_info().1); + // Rebalance the network a bit by relaying one payment through all the channels ... - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 8000000); let (payment_preimage, _payment_hash, _payment_secret) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2]), 3000000); let commitment_tx = get_local_commitment_txn!(nodes[2], chan_2.2); check_spends!(commitment_tx[0], chan_2.3); - nodes[2].node.claim_funds(payment_preimage, 3_000_000); + nodes[2].node.claim_funds(payment_preimage); check_added_monitors!(nodes[2], 1); let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); assert!(updates.update_add_htlcs.is_empty()); @@ -5042,19 +5278,16 @@ fn test_onchain_to_onchain_claim() { // So we broadcast C's commitment tx and HTLC-Success on B's chain, we should successfully be able to extract preimage and update downstream monitor let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42}; connect_block(&nodes[1], &Block { header, txdata: vec![c_txn[1].clone(), c_txn[2].clone()]}); + connect_blocks(&nodes[1], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires { let mut b_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - // ChannelMonitor: claim tx, ChannelManager: local commitment tx + HTLC-timeout tx - assert_eq!(b_txn.len(), 3); - check_spends!(b_txn[1], chan_2.3); // B local commitment tx, issued by ChannelManager - check_spends!(b_txn[2], b_txn[1]); // HTLC-Timeout on B local commitment tx, issued by ChannelManager - assert_eq!(b_txn[2].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert!(b_txn[2].output[0].script_pubkey.is_v0_p2wsh()); // revokeable output - assert_ne!(b_txn[2].lock_time, 0); // Timeout tx - check_spends!(b_txn[0], c_txn[1]); // timeout tx on C remote commitment tx, issued by ChannelMonitor - assert_eq!(b_txn[0].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert!(b_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment - assert_ne!(b_txn[2].lock_time, 0); // Timeout tx + // ChannelMonitor: claim tx, ChannelManager: local commitment tx + assert_eq!(b_txn.len(), 2); + check_spends!(b_txn[0], chan_2.3); // B local commitment tx, issued by ChannelManager + check_spends!(b_txn[1], c_txn[1]); // timeout tx on C remote commitment tx, issued by ChannelMonitor + assert_eq!(b_txn[1].input[0].witness.clone().last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); + assert!(b_txn[1].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment + assert_ne!(b_txn[1].lock_time, 0); // Timeout tx b_txn.clear(); } check_added_monitors!(nodes[1], 1); @@ -5083,14 +5316,19 @@ fn test_onchain_to_onchain_claim() { let commitment_tx = get_local_commitment_txn!(nodes[0], chan_1.2); mine_transaction(&nodes[1], &commitment_tx[0]); let b_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - // ChannelMonitor: HTLC-Success tx, ChannelManager: local commitment tx + HTLC-Success tx - assert_eq!(b_txn.len(), 3); - check_spends!(b_txn[1], chan_1.3); - check_spends!(b_txn[2], b_txn[1]); - check_spends!(b_txn[0], commitment_tx[0]); - assert_eq!(b_txn[0].input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert!(b_txn[0].output[0].script_pubkey.is_v0_p2wpkh()); // direct payment - assert_eq!(b_txn[0].lock_time, 0); // Success tx + // ChannelMonitor: HTLC-Success tx + HTLC-Timeout RBF Bump, ChannelManager: local commitment tx + HTLC-Success tx + assert_eq!(b_txn.len(), 4); + check_spends!(b_txn[2], chan_1.3); + check_spends!(b_txn[3], b_txn[2]); + let (htlc_success_claim, htlc_timeout_bumped) = + if b_txn[0].input[0].previous_output.txid == commitment_tx[0].txid() + { (&b_txn[0], &b_txn[1]) } else { (&b_txn[1], &b_txn[0]) }; + check_spends!(htlc_success_claim, commitment_tx[0]); + assert_eq!(htlc_success_claim.input[0].witness.clone().last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + assert!(htlc_success_claim.output[0].script_pubkey.is_v0_p2wpkh()); // direct payment + assert_eq!(htlc_success_claim.lock_time, 0); // Success tx + check_spends!(htlc_timeout_bumped, c_txn[1]); // timeout tx on C remote commitment tx, issued by ChannelMonitor + assert_ne!(htlc_timeout_bumped.lock_time, 0); // Success tx check_closed_broadcast!(nodes[1], true); check_added_monitors!(nodes[1], 1); @@ -5111,11 +5349,20 @@ fn test_duplicate_payment_hash_one_failure_one_success() { let chan_2 = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known()); create_announced_chan_between_nodes(&nodes, 2, 3, InitFeatures::known(), InitFeatures::known()); + let node_max_height = nodes.iter().map(|node| node.blocks.lock().unwrap().len()).max().unwrap() as u32; + connect_blocks(&nodes[0], node_max_height - nodes[0].best_block_info().1); + connect_blocks(&nodes[1], node_max_height - nodes[1].best_block_info().1); + connect_blocks(&nodes[2], node_max_height - nodes[2].best_block_info().1); + connect_blocks(&nodes[3], node_max_height - nodes[3].best_block_info().1); + let (our_payment_preimage, duplicate_payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1], &nodes[2])[..], 900000); let payment_secret = nodes[3].node.create_inbound_payment_for_hash(duplicate_payment_hash, None, 7200, 0).unwrap(); + // We reduce the final CLTV here by a somewhat arbitrary constant to keep it under the one-byte + // script push size limit so that the below script length checks match + // ACCEPTED_HTLC_SCRIPT_WEIGHT. let route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph.read().unwrap(), - &nodes[3].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 900000, TEST_FINAL_CLTV, nodes[0].logger).unwrap(); + &nodes[3].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 900000, TEST_FINAL_CLTV - 40, nodes[0].logger).unwrap(); send_along_route_with_secret(&nodes[0], route, &[&[&nodes[1], &nodes[2], &nodes[3]]], 900000, duplicate_payment_hash, payment_secret); let commitment_txn = get_local_commitment_txn!(nodes[2], chan_2.2); @@ -5125,26 +5372,30 @@ fn test_duplicate_payment_hash_one_failure_one_success() { mine_transaction(&nodes[1], &commitment_txn[0]); check_closed_broadcast!(nodes[1], true); check_added_monitors!(nodes[1], 1); + connect_blocks(&nodes[1], TEST_FINAL_CLTV - 40 + MIN_CLTV_EXPIRY_DELTA as u32 - 1); // Confirm blocks until the HTLC expires let htlc_timeout_tx; { // Extract one of the two HTLC-Timeout transaction let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - // ChannelMonitor: timeout tx * 2, ChannelManager: local commitment tx + HTLC-timeout * 2 - assert_eq!(node_txn.len(), 5); - check_spends!(node_txn[0], commitment_txn[0]); - assert_eq!(node_txn[0].input.len(), 1); + // ChannelMonitor: timeout tx * 3, ChannelManager: local commitment tx + assert_eq!(node_txn.len(), 4); + check_spends!(node_txn[0], chan_2.3); + check_spends!(node_txn[1], commitment_txn[0]); assert_eq!(node_txn[1].input.len(), 1); - assert_ne!(node_txn[0].input[0], node_txn[1].input[0]); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); + check_spends!(node_txn[2], commitment_txn[0]); + assert_eq!(node_txn[2].input.len(), 1); + assert_eq!(node_txn[1].input[0].previous_output, node_txn[2].input[0].previous_output); + check_spends!(node_txn[3], commitment_txn[0]); + assert_ne!(node_txn[1].input[0].previous_output, node_txn[3].input[0].previous_output); + assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[2], chan_2.3); - check_spends!(node_txn[3], node_txn[2]); - check_spends!(node_txn[4], node_txn[2]); + assert_eq!(node_txn[2].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); + assert_eq!(node_txn[3].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); htlc_timeout_tx = node_txn[1].clone(); } - nodes[2].node.claim_funds(our_payment_preimage, 900_000); + nodes[2].node.claim_funds(our_payment_preimage); mine_transaction(&nodes[2], &commitment_txn[0]); check_added_monitors!(nodes[2], 2); let events = nodes[2].node.get_and_clear_pending_msg_events(); @@ -5158,18 +5409,17 @@ fn test_duplicate_payment_hash_one_failure_one_success() { } let htlc_success_txn: Vec<_> = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap().clone(); assert_eq!(htlc_success_txn.len(), 5); // ChannelMonitor: HTLC-Success txn (*2 due to 2-HTLC outputs), ChannelManager: local commitment tx + HTLC-Success txn (*2 due to 2-HTLC outputs) - check_spends!(htlc_success_txn[2], chan_2.3); - check_spends!(htlc_success_txn[3], htlc_success_txn[2]); - check_spends!(htlc_success_txn[4], htlc_success_txn[2]); - assert_eq!(htlc_success_txn[0], htlc_success_txn[3]); + check_spends!(htlc_success_txn[0], commitment_txn[0]); + check_spends!(htlc_success_txn[1], commitment_txn[0]); assert_eq!(htlc_success_txn[0].input.len(), 1); assert_eq!(htlc_success_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert_eq!(htlc_success_txn[1], htlc_success_txn[4]); assert_eq!(htlc_success_txn[1].input.len(), 1); assert_eq!(htlc_success_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); - assert_ne!(htlc_success_txn[0].input[0], htlc_success_txn[1].input[0]); - check_spends!(htlc_success_txn[0], commitment_txn[0]); - check_spends!(htlc_success_txn[1], commitment_txn[0]); + assert_ne!(htlc_success_txn[0].input[0].previous_output, htlc_success_txn[1].input[0].previous_output); + assert_eq!(htlc_success_txn[2], commitment_txn[0]); + assert_eq!(htlc_success_txn[3], htlc_success_txn[0]); + assert_eq!(htlc_success_txn[4], htlc_success_txn[1]); + assert_ne!(htlc_success_txn[0].input[0].previous_output, htlc_timeout_tx.input[0].previous_output); mine_transaction(&nodes[1], &htlc_timeout_tx); connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); @@ -5177,7 +5427,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() { let htlc_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); assert!(htlc_updates.update_add_htlcs.is_empty()); assert_eq!(htlc_updates.update_fail_htlcs.len(), 1); - assert_eq!(htlc_updates.update_fail_htlcs[0].htlc_id, 1); + let first_htlc_id = htlc_updates.update_fail_htlcs[0].htlc_id; assert!(htlc_updates.update_fulfill_htlcs.is_empty()); assert!(htlc_updates.update_fail_malformed_htlcs.is_empty()); check_added_monitors!(nodes[1], 1); @@ -5186,13 +5436,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() { assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); { commitment_signed_dance!(nodes[0], nodes[1], &htlc_updates.commitment_signed, false, true); - let events = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(events.len(), 1); - match events[0] { - MessageSendEvent::PaymentFailureNetworkUpdate { update: msgs::HTLCFailChannelUpdate::ChannelClosed { .. } } => { - }, - _ => { panic!("Unexpected event"); } - } + expect_payment_failure_chan_update!(nodes[0], chan_2.0.contents.short_channel_id, true); } expect_payment_failed!(nodes[0], duplicate_payment_hash, false); @@ -5202,7 +5446,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() { assert!(updates.update_add_htlcs.is_empty()); assert!(updates.update_fail_htlcs.is_empty()); assert_eq!(updates.update_fulfill_htlcs.len(), 1); - assert_eq!(updates.update_fulfill_htlcs[0].htlc_id, 0); + assert_ne!(updates.update_fulfill_htlcs[0].htlc_id, first_htlc_id); assert!(updates.update_fail_malformed_htlcs.is_empty()); check_added_monitors!(nodes[1], 1); @@ -5235,7 +5479,7 @@ fn test_dynamic_spendable_outputs_local_htlc_success_tx() { check_spends!(local_txn[0], chan_1.3); // Give B knowledge of preimage to be able to generate a local HTLC-Success Tx - nodes[1].node.claim_funds(payment_preimage, 9_000_000); + nodes[1].node.claim_funds(payment_preimage); check_added_monitors!(nodes[1], 1); mine_transaction(&nodes[1], &local_txn[0]); check_added_monitors!(nodes[1], 1); @@ -5260,12 +5504,14 @@ fn test_dynamic_spendable_outputs_local_htlc_success_tx() { }; mine_transaction(&nodes[1], &node_tx); - connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); + connect_blocks(&nodes[1], BREAKDOWN_TIMEOUT as u32 - 1); // Verify that B is able to spend its own HTLC-Success tx thanks to spendable output event given back by its ChannelMonitor - let spend_txn = check_spendable_outputs!(nodes[1], 1, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 1); + assert_eq!(spend_txn[0].input.len(), 1); check_spends!(spend_txn[0], node_tx); + assert_eq!(spend_txn[0].input[0].sequence, BREAKDOWN_TIMEOUT as u32); } fn do_test_fail_backwards_unrevoked_remote_announce(deliver_last_raa: bool, announce_latest: bool) { @@ -5294,8 +5540,8 @@ fn do_test_fail_backwards_unrevoked_remote_announce(deliver_last_raa: bool, anno create_announced_chan_between_nodes(&nodes, 3, 5, InitFeatures::known(), InitFeatures::known()); // Rebalance and check output sanity... - send_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 500000, 500_000); - send_payment(&nodes[1], &[&nodes[2], &nodes[3], &nodes[5]], 500000, 500_000); + send_payment(&nodes[0], &[&nodes[2], &nodes[3], &nodes[4]], 500000); + send_payment(&nodes[1], &[&nodes[2], &nodes[3], &nodes[5]], 500000); assert_eq!(get_local_commitment_txn!(nodes[3], chan.2)[0].output.len(), 2); let ds_dust_limit = nodes[3].node.channel_state.lock().unwrap().by_id.get(&chan.2).unwrap().holder_dust_limit_satoshis; @@ -5542,25 +5788,33 @@ fn test_dynamic_spendable_outputs_local_htlc_timeout_tx() { mine_transaction(&nodes[0], &local_txn[0]); check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); + connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires let htlc_timeout = { let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[0], local_txn[0]); - node_txn[0].clone() + assert_eq!(node_txn.len(), 2); + check_spends!(node_txn[0], chan_1.3); + assert_eq!(node_txn[1].input.len(), 1); + assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + check_spends!(node_txn[1], local_txn[0]); + node_txn[1].clone() }; mine_transaction(&nodes[0], &htlc_timeout); - connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1); + connect_blocks(&nodes[0], BREAKDOWN_TIMEOUT as u32 - 1); expect_payment_failed!(nodes[0], our_payment_hash, true); // Verify that A is able to spend its own HTLC-Timeout tx thanks to spendable output event given back by its ChannelMonitor - let spend_txn = check_spendable_outputs!(nodes[0], 1, node_cfgs[0].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[0], node_cfgs[0].keys_manager); assert_eq!(spend_txn.len(), 3); check_spends!(spend_txn[0], local_txn[0]); + assert_eq!(spend_txn[1].input.len(), 1); check_spends!(spend_txn[1], htlc_timeout); + assert_eq!(spend_txn[1].input[0].sequence, BREAKDOWN_TIMEOUT as u32); + assert_eq!(spend_txn[2].input.len(), 2); check_spends!(spend_txn[2], local_txn[0], htlc_timeout); + assert!(spend_txn[2].input[0].sequence == BREAKDOWN_TIMEOUT as u32 || + spend_txn[2].input[1].sequence == BREAKDOWN_TIMEOUT as u32); } #[test] @@ -5590,6 +5844,12 @@ fn test_key_derivation_params() { let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); assert_ne!(chan_0.3.output[0].script_pubkey, chan_1.3.output[0].script_pubkey); + // Ensure all nodes are at the same height + let node_max_height = nodes.iter().map(|node| node.blocks.lock().unwrap().len()).max().unwrap() as u32; + connect_blocks(&nodes[0], node_max_height - nodes[0].best_block_info().1); + connect_blocks(&nodes[1], node_max_height - nodes[1].best_block_info().1); + connect_blocks(&nodes[2], node_max_height - nodes[2].best_block_info().1); + let (_, our_payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9000000); let local_txn_0 = get_local_commitment_txn!(nodes[0], chan_0.2); let local_txn_1 = get_local_commitment_txn!(nodes[0], chan_1.2); @@ -5608,28 +5868,34 @@ fn test_key_derivation_params() { // Timeout HTLC on A's chain and so it can generate a HTLC-Timeout tx mine_transaction(&nodes[0], &local_txn_1[0]); + connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); let htlc_timeout = { let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[0], local_txn_1[0]); - node_txn[0].clone() + assert_eq!(node_txn[1].input.len(), 1); + assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + check_spends!(node_txn[1], local_txn_1[0]); + node_txn[1].clone() }; mine_transaction(&nodes[0], &htlc_timeout); - connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1); + connect_blocks(&nodes[0], BREAKDOWN_TIMEOUT as u32 - 1); expect_payment_failed!(nodes[0], our_payment_hash, true); // Verify that A is able to spend its own HTLC-Timeout tx thanks to spendable output event given back by its ChannelMonitor let new_keys_manager = test_utils::TestKeysInterface::new(&seed, Network::Testnet); - let spend_txn = check_spendable_outputs!(nodes[0], 1, new_keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[0], new_keys_manager); assert_eq!(spend_txn.len(), 3); check_spends!(spend_txn[0], local_txn_1[0]); + assert_eq!(spend_txn[1].input.len(), 1); check_spends!(spend_txn[1], htlc_timeout); + assert_eq!(spend_txn[1].input[0].sequence, BREAKDOWN_TIMEOUT as u32); + assert_eq!(spend_txn[2].input.len(), 2); check_spends!(spend_txn[2], local_txn_1[0], htlc_timeout); + assert!(spend_txn[2].input[0].sequence == BREAKDOWN_TIMEOUT as u32 || + spend_txn[2].input[1].sequence == BREAKDOWN_TIMEOUT as u32); } #[test] @@ -5641,20 +5907,20 @@ fn test_static_output_closing_tx() { let chan = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); let closing_tx = close_channel(&nodes[0], &nodes[1], &chan.2, chan.3, true).2; mine_transaction(&nodes[0], &closing_tx); connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1); - let spend_txn = check_spendable_outputs!(nodes[0], 2, node_cfgs[0].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[0], node_cfgs[0].keys_manager); assert_eq!(spend_txn.len(), 1); check_spends!(spend_txn[0], closing_tx); mine_transaction(&nodes[1], &closing_tx); connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1); - let spend_txn = check_spendable_outputs!(nodes[1], 2, node_cfgs[1].keys_manager, 100000); + let spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); assert_eq!(spend_txn.len(), 1); check_spends!(spend_txn[0], closing_tx); } @@ -5670,7 +5936,7 @@ fn do_htlc_claim_local_commitment_only(use_dust: bool) { // Claim the payment, but don't deliver A's commitment_signed, resulting in the HTLC only being // present in B's local commitment transaction, but none of A's commitment transactions. - assert!(nodes[1].node.claim_funds(our_payment_preimage, if use_dust { 50_000 } else { 3_000_000 })); + assert!(nodes[1].node.claim_funds(our_payment_preimage)); check_added_monitors!(nodes[1], 1); let bs_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); @@ -5883,6 +6149,31 @@ fn bolt2_open_channel_sending_node_checks_part2() { assert!(PublicKey::from_slice(&node0_to_1_send_open_channel.delayed_payment_basepoint.serialize()).is_ok()); } +#[test] +fn bolt2_open_channel_sane_dust_limit() { + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + let channel_value_satoshis=1000000; + let push_msat=10001; + nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), channel_value_satoshis, push_msat, 42, None).unwrap(); + let mut node0_to_1_send_open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id()); + node0_to_1_send_open_channel.dust_limit_satoshis = 661; + node0_to_1_send_open_channel.channel_reserve_satoshis = 100001; + + nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &node0_to_1_send_open_channel); + let events = nodes[1].node.get_and_clear_pending_msg_events(); + let err_msg = match events[0] { + MessageSendEvent::HandleError { action: ErrorAction::SendErrorMessage { ref msg }, node_id: _ } => { + msg.clone() + }, + _ => panic!("Unexpected event"), + }; + assert_eq!(err_msg.data, "dust_limit_satoshis (661) is greater than the implementation limit (660)"); +} + // Test that if we fail to send an HTLC that is being freed from the holding cell, and the HTLC // originated from our node, its failure is surfaced to the user. We trigger this failure to // free the HTLC by increasing our fee while the HTLC is in the holding cell such that the HTLC @@ -5939,8 +6230,9 @@ fn test_fail_holding_cell_htlc_upon_free() { // us to surface its failure to the user. chan_stat = get_channel_value_stat!(nodes[0], chan.2); assert_eq!(chan_stat.holding_cell_outbound_amount_msat, 0); - nodes[0].logger.assert_log("lightning::ln::channel".to_string(), "Freeing holding cell with 1 HTLC updates".to_string(), 1); - let failure_log = format!("Failed to send HTLC with payment_hash {} due to Cannot send value that would put our balance under counterparty-announced channel reserve value ({})", log_bytes!(our_payment_hash.0), chan_stat.channel_reserve_msat); + nodes[0].logger.assert_log("lightning::ln::channel".to_string(), format!("Freeing holding cell with 1 HTLC updates in channel {}", hex::encode(chan.2)), 1); + let failure_log = format!("Failed to send HTLC with payment_hash {} due to Cannot send value that would put our balance under counterparty-announced channel reserve value ({}) in channel {}", + hex::encode(our_payment_hash.0), chan_stat.channel_reserve_msat, hex::encode(chan.2)); nodes[0].logger.assert_log("lightning::ln::channel".to_string(), failure_log.to_string(), 1); // Check that the payment failed to be sent out. @@ -6019,8 +6311,9 @@ fn test_free_and_fail_holding_cell_htlcs() { // to surface its failure to the user. The first payment should succeed. chan_stat = get_channel_value_stat!(nodes[0], chan.2); assert_eq!(chan_stat.holding_cell_outbound_amount_msat, 0); - nodes[0].logger.assert_log("lightning::ln::channel".to_string(), "Freeing holding cell with 2 HTLC updates".to_string(), 1); - let failure_log = format!("Failed to send HTLC with payment_hash {} due to Cannot send value that would put our balance under counterparty-announced channel reserve value ({})", log_bytes!(payment_hash_2.0), chan_stat.channel_reserve_msat); + nodes[0].logger.assert_log("lightning::ln::channel".to_string(), format!("Freeing holding cell with 2 HTLC updates in channel {}", hex::encode(chan.2)), 1); + let failure_log = format!("Failed to send HTLC with payment_hash {} due to Cannot send value that would put our balance under counterparty-announced channel reserve value ({}) in channel {}", + hex::encode(payment_hash_2.0), chan_stat.channel_reserve_msat, hex::encode(chan.2)); nodes[0].logger.assert_log("lightning::ln::channel".to_string(), failure_log.to_string(), 1); // Check that the second payment failed to be sent out. @@ -6063,7 +6356,7 @@ fn test_free_and_fail_holding_cell_htlcs() { Event::PaymentReceived { .. } => {}, _ => panic!("Unexpected event"), } - nodes[1].node.claim_funds(payment_preimage_1, amt_1); + nodes[1].node.claim_funds(payment_preimage_1); check_added_monitors!(nodes[1], 1); let update_msgs = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &update_msgs.update_fulfill_htlcs[0]); @@ -6202,20 +6495,8 @@ fn test_fail_holding_cell_htlc_upon_free_multihop() { _ => panic!("Unexpected event"), }; nodes[0].node.handle_revoke_and_ack(&nodes[1].node.get_our_node_id(), &raa); - let fail_msg_event = nodes[0].node.get_and_clear_pending_msg_events(); - assert_eq!(fail_msg_event.len(), 1); - match &fail_msg_event[0] { - &MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {}, - _ => panic!("Unexpected event"), - } - let failure_event = nodes[0].node.get_and_clear_pending_events(); - assert_eq!(failure_event.len(), 1); - match &failure_event[0] { - &Event::PaymentFailed { rejected_by_dest, .. } => { - assert!(!rejected_by_dest); - }, - _ => panic!("Unexpected event"), - } + expect_payment_failure_chan_update!(nodes[0], chan_1_2.0.contents.short_channel_id, false); + expect_payment_failed!(nodes[0], our_payment_hash, false); check_added_monitors!(nodes[0], 1); } @@ -6366,7 +6647,7 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_value_in_flight() { let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, channel_value, 0, InitFeatures::known(), InitFeatures::known()); let max_in_flight = get_channel_value_stat!(nodes[0], chan.2).counterparty_max_htlc_value_in_flight_msat; - send_payment(&nodes[0], &vec!(&nodes[1])[..], max_in_flight, max_in_flight); + send_payment(&nodes[0], &vec!(&nodes[1])[..], max_in_flight); let (_, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(nodes[1]); // Manually create a route over our max in flight (which our router normally automatically @@ -6382,7 +6663,7 @@ fn test_update_add_htlc_bolt2_sender_exceed_max_htlc_value_in_flight() { assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); nodes[0].logger.assert_log_contains("lightning::ln::channelmanager".to_string(), "Cannot send value that would put us over the max HTLC value in flight our peer will accept".to_string(), 1); - send_payment(&nodes[0], &[&nodes[1]], max_in_flight, max_in_flight); + send_payment(&nodes[0], &[&nodes[1]], max_in_flight); } // BOLT 2 Requirements for the Receiver when handling an update_add_htlc message. @@ -6706,7 +6987,7 @@ fn test_update_fulfill_htlc_bolt2_incorrect_htlc_id() { let our_payment_preimage = route_payment(&nodes[0], &[&nodes[1]], 100000).0; - nodes[1].node.claim_funds(our_payment_preimage, 100_000); + nodes[1].node.claim_funds(our_payment_preimage); check_added_monitors!(nodes[1], 1); let events = nodes[1].node.get_and_clear_pending_msg_events(); @@ -6747,7 +7028,7 @@ fn test_update_fulfill_htlc_bolt2_wrong_preimage() { let our_payment_preimage = route_payment(&nodes[0], &[&nodes[1]], 100000).0; - nodes[1].node.claim_funds(our_payment_preimage, 100_000); + nodes[1].node.claim_funds(our_payment_preimage); check_added_monitors!(nodes[1], 1); let events = nodes[1].node.get_and_clear_pending_msg_events(); @@ -7017,19 +7298,21 @@ fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) { // We revoked bs_commitment_tx if revoked { let (payment_preimage_3, _, _) = route_payment(&nodes[0], &[&nodes[1]], 1000000); - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_3, 1_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage_3); } let mut timeout_tx = Vec::new(); if local { // We fail dust-HTLC 1 by broadcast of local commitment tx mine_transaction(&nodes[0], &as_commitment_tx[0]); + connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1); + expect_payment_failed!(nodes[0], dust_hash, true); + + connect_blocks(&nodes[0], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS - ANTI_REORG_DELAY); check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0); - timeout_tx.push(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap()[0].clone()); - connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1); - expect_payment_failed!(nodes[0], dust_hash, true); + timeout_tx.push(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap()[1].clone()); assert_eq!(timeout_tx[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // We fail non-dust-HTLC 2 by broadcast of local HTLC-timeout tx on local commitment tx assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0); @@ -7042,8 +7325,8 @@ fn do_test_sweep_outbound_htlc_failure_update(revoked: bool, local: bool) { check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0); - timeout_tx.push(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap()[0].clone()); - connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1); + connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires + timeout_tx.push(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap()[1].clone()); if !revoked { expect_payment_failed!(nodes[0], dust_hash, true); assert_eq!(timeout_tx[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); @@ -7390,8 +7673,8 @@ fn test_data_loss_protect() { let mut previous_chain_monitor_state = test_utils::TestVecWriter(Vec::new()); nodes[0].chain_monitor.chain_monitor.monitors.read().unwrap().iter().next().unwrap().1.write(&mut previous_chain_monitor_state).unwrap(); - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); - send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000, 8_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000); nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); @@ -7400,7 +7683,7 @@ fn test_data_loss_protect() { logger = test_utils::TestLogger::with_id(format!("node {}", 0)); let mut chain_monitor = <(BlockHash, ChannelMonitor)>::read(&mut ::std::io::Cursor::new(previous_chain_monitor_state.0), keys_manager).unwrap().1; chain_source = test_utils::TestChainSource::new(Network::Testnet); - tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())}; + tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new()), blocks: Arc::new(Mutex::new(Vec::new()))}; fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 }; persister = test_utils::TestPersister::new(); monitor = test_utils::TestChainMonitor::new(Some(&chain_source), &tx_broadcaster, &logger, &fee_estimator, &persister, keys_manager); @@ -7469,7 +7752,7 @@ fn test_data_loss_protect() { assert_eq!(node_txn[0].output.len(), 2); mine_transaction(&nodes[0], &node_txn[0]); connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1); - let spend_txn = check_spendable_outputs!(nodes[0], 1, node_cfgs[0].keys_manager, 1000000); + let spend_txn = check_spendable_outputs!(nodes[0], node_cfgs[0].keys_manager); assert_eq!(spend_txn.len(), 1); check_spends!(spend_txn[0], node_txn[0]); } @@ -7483,16 +7766,30 @@ fn test_check_htlc_underpaying() { let chanmon_cfgs = create_chanmon_cfgs(2); let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); - let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs); // Create some initial channels create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); - let (payment_preimage, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1]], 10_000); + let route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 10_000, TEST_FINAL_CLTV, nodes[0].logger).unwrap(); + let (_, our_payment_hash, _) = get_payment_preimage_hash!(nodes[0]); + let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(our_payment_hash, Some(100_000), 7200, 0).unwrap(); + nodes[0].node.send_payment(&route, our_payment_hash, &Some(our_payment_secret)).unwrap(); + check_added_monitors!(nodes[0], 1); + + let mut events = nodes[0].node.get_and_clear_pending_msg_events(); + assert_eq!(events.len(), 1); + let mut payment_event = SendEvent::from_event(events.pop().unwrap()); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]); + commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false); - // Node 3 is expecting payment of 100_000 but receive 10_000, - // fail htlc like we didn't know the preimage. - nodes[1].node.claim_funds(payment_preimage, 100_000); + // Note that we first have to wait a random delay before processing the receipt of the HTLC, + // and then will wait a second random delay before failing the HTLC back: + expect_pending_htlcs_forwardable!(nodes[1]); + expect_pending_htlcs_forwardable!(nodes[1]); + + // Node 3 is expecting payment of 100_000 but received 10_000, + // it should fail htlc like we didn't know the preimage. nodes[1].node.process_pending_htlc_forwards(); let events = nodes[1].node.get_and_clear_pending_msg_events(); @@ -7516,8 +7813,7 @@ fn test_check_htlc_underpaying() { // 10_000 msat as u64, followed by a height of CHAN_CONFIRM_DEPTH as u32 let mut expected_failure_data = byte_utils::be64_to_array(10_000).to_vec(); expected_failure_data.extend_from_slice(&byte_utils::be32_to_array(CHAN_CONFIRM_DEPTH)); - expect_payment_failed!(nodes[0], payment_hash, true, 0x4000|15, &expected_failure_data[..]); - nodes[1].node.get_and_clear_pending_events(); + expect_payment_failed!(nodes[0], our_payment_hash, true, 0x4000|15, &expected_failure_data[..]); } #[test] @@ -7538,16 +7834,17 @@ fn test_announce_disable_channels() { nodes[0].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), false); - nodes[0].node.timer_tick_occurred(); // dirty -> stagged - nodes[0].node.timer_tick_occurred(); // staged -> fresh + nodes[0].node.timer_tick_occurred(); // Enabled -> DisabledStaged + nodes[0].node.timer_tick_occurred(); // DisabledStaged -> Disabled let msg_events = nodes[0].node.get_and_clear_pending_msg_events(); assert_eq!(msg_events.len(), 3); + let mut chans_disabled: HashSet = [short_id_1, short_id_2, short_id_3].iter().map(|a| *a).collect(); for e in msg_events { match e { MessageSendEvent::BroadcastChannelUpdate { ref msg } => { - let short_id = msg.contents.short_channel_id; - // Check generated channel_update match list in PendingChannelUpdate - if short_id != short_id_1 && short_id != short_id_2 && short_id != short_id_3 { + assert_eq!(msg.contents.flags & (1<<1), 1<<1); // The "channel disabled" bit should be set + // Check that each channel gets updated exactly once + if !chans_disabled.remove(&msg.contents.short_channel_id) { panic!("Generated ChannelUpdate for wrong chan!"); } }, @@ -7580,6 +7877,22 @@ fn test_announce_disable_channels() { nodes[0].node.timer_tick_occurred(); assert!(nodes[0].node.get_and_clear_pending_msg_events().is_empty()); + nodes[0].node.timer_tick_occurred(); + let msg_events = nodes[0].node.get_and_clear_pending_msg_events(); + assert_eq!(msg_events.len(), 3); + chans_disabled = [short_id_1, short_id_2, short_id_3].iter().map(|a| *a).collect(); + for e in msg_events { + match e { + MessageSendEvent::BroadcastChannelUpdate { ref msg } => { + assert_eq!(msg.contents.flags & (1<<1), 0); // The "channel disabled" bit should be off + // Check that each channel gets updated exactly once + if !chans_disabled.remove(&msg.contents.short_channel_id) { + panic!("Generated ChannelUpdate for wrong chan!"); + } + }, + _ => panic!("Unexpected event"), + } + } } #[test] @@ -7618,7 +7931,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() { let header_114 = connect_blocks(&nodes[1], 14); // Actually revoke tx by claiming a HTLC - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); let header = BlockHeader { version: 0x20000000, prev_blockhash: header_114, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; connect_block(&nodes[1], &Block { header, txdata: vec![revoked_txn[0].clone()] }); check_added_monitors!(nodes[1], 1); @@ -7628,7 +7941,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() { let feerate_1; { let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 3); // justice tx (broadcasted from ChannelMonitor) + local commitment tx + local HTLC-timeout (broadcasted from ChannelManager) + assert_eq!(node_txn.len(), 2); // justice tx (broadcasted from ChannelMonitor) + local commitment tx assert_eq!(node_txn[0].input.len(), 3); // Penalty txn claims to_local, offered_htlc and received_htlc outputs assert_eq!(node_txn[0].output.len(), 1); check_spends!(node_txn[0], revoked_txn[0]); @@ -7700,47 +8013,47 @@ fn test_bump_penalty_txn_on_revoked_htlcs() { let nodes = create_network(2, &node_cfgs, &node_chanmgrs); let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000, InitFeatures::known(), InitFeatures::known()); - // Lock HTLC in both directions - let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3_000_000).0; - route_payment(&nodes[1], &vec!(&nodes[0])[..], 3_000_000).0; + // Lock HTLC in both directions (using a slightly lower CLTV delay to provide timely RBF bumps) + let route = get_route(&nodes[0].node.get_our_node_id(), &nodes[0].net_graph_msg_handler.network_graph.read().unwrap(), + &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 3_000_000, 50, nodes[0].logger).unwrap(); + let payment_preimage = send_along_route(&nodes[0], route, &[&nodes[1]], 3_000_000).0; + let route = get_route(&nodes[1].node.get_our_node_id(), &nodes[1].net_graph_msg_handler.network_graph.read().unwrap(), + &nodes[0].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &Vec::new(), 3_000_000, 50, nodes[0].logger).unwrap(); + send_along_route(&nodes[1], route, &[&nodes[0]], 3_000_000); let revoked_local_txn = get_local_commitment_txn!(nodes[1], chan.2); assert_eq!(revoked_local_txn[0].input.len(), 1); assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan.3.txid()); // Revoke local commitment tx - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 3_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); let header = BlockHeader { version: 0x20000000, prev_blockhash: nodes[1].best_block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; // B will generate both revoked HTLC-timeout/HTLC-preimage txn from revoked commitment tx connect_block(&nodes[1], &Block { header, txdata: vec![revoked_local_txn[0].clone()] }); check_closed_broadcast!(nodes[1], true); check_added_monitors!(nodes[1], 1); + connect_blocks(&nodes[1], 49); // Confirm blocks until the HTLC expires (note CLTV was explicitly 50 above) let revoked_htlc_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(revoked_htlc_txn.len(), 4); - if revoked_htlc_txn[0].input[0].witness.last().unwrap().len() == ACCEPTED_HTLC_SCRIPT_WEIGHT { - assert_eq!(revoked_htlc_txn[0].input.len(), 1); - check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]); - assert_eq!(revoked_htlc_txn[1].input.len(), 1); - assert_eq!(revoked_htlc_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert_eq!(revoked_htlc_txn[1].output.len(), 1); - check_spends!(revoked_htlc_txn[1], revoked_local_txn[0]); - } else if revoked_htlc_txn[1].input[0].witness.last().unwrap().len() == ACCEPTED_HTLC_SCRIPT_WEIGHT { - assert_eq!(revoked_htlc_txn[1].input.len(), 1); - check_spends!(revoked_htlc_txn[1], revoked_local_txn[0]); - assert_eq!(revoked_htlc_txn[0].input.len(), 1); - assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - assert_eq!(revoked_htlc_txn[0].output.len(), 1); - check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]); - } + assert_eq!(revoked_htlc_txn.len(), 3); + check_spends!(revoked_htlc_txn[1], chan.3); + + assert_eq!(revoked_htlc_txn[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); + assert_eq!(revoked_htlc_txn[0].input.len(), 1); + check_spends!(revoked_htlc_txn[0], revoked_local_txn[0]); + + assert_eq!(revoked_htlc_txn[2].input.len(), 1); + assert_eq!(revoked_htlc_txn[2].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + assert_eq!(revoked_htlc_txn[2].output.len(), 1); + check_spends!(revoked_htlc_txn[2], revoked_local_txn[0]); // Broadcast set of revoked txn on A let hash_128 = connect_blocks(&nodes[0], 40); let header_11 = BlockHeader { version: 0x20000000, prev_blockhash: hash_128, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; connect_block(&nodes[0], &Block { header: header_11, txdata: vec![revoked_local_txn[0].clone()] }); let header_129 = BlockHeader { version: 0x20000000, prev_blockhash: header_11.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; - connect_block(&nodes[0], &Block { header: header_129, txdata: vec![revoked_htlc_txn[0].clone(), revoked_htlc_txn[1].clone()] }); + connect_block(&nodes[0], &Block { header: header_129, txdata: vec![revoked_htlc_txn[0].clone(), revoked_htlc_txn[2].clone()] }); expect_pending_htlcs_forwardable_ignore!(nodes[0]); let first; let feerate_1; @@ -7769,7 +8082,7 @@ fn test_bump_penalty_txn_on_revoked_htlcs() { assert_ne!(node_txn[1].input[0].previous_output, node_txn[2].input[0].previous_output); assert_eq!(node_txn[0].input[0].previous_output, revoked_htlc_txn[0].input[0].previous_output); - assert_eq!(node_txn[1].input[0].previous_output, revoked_htlc_txn[1].input[0].previous_output); + assert_eq!(node_txn[1].input[0].previous_output, revoked_htlc_txn[2].input[0].previous_output); // node_txn[3] is the local commitment tx broadcast just because (and somewhat in case of // reorgs, though its not clear its ever worth broadcasting conflicting txn like this when @@ -7780,11 +8093,11 @@ fn test_bump_penalty_txn_on_revoked_htlcs() { // output, checked above). assert_eq!(node_txn[4].input.len(), 2); assert_eq!(node_txn[4].output.len(), 1); - check_spends!(node_txn[4], revoked_htlc_txn[0], revoked_htlc_txn[1]); + check_spends!(node_txn[4], revoked_htlc_txn[0], revoked_htlc_txn[2]); first = node_txn[4].txid(); // Store both feerates for later comparison - let fee_1 = revoked_htlc_txn[0].output[0].value + revoked_htlc_txn[1].output[0].value - node_txn[4].output[0].value; + let fee_1 = revoked_htlc_txn[0].output[0].value + revoked_htlc_txn[2].output[0].value - node_txn[4].output[0].value; feerate_1 = fee_1 * 1000 / node_txn[4].get_weight() as u64; penalty_txn = vec![node_txn[2].clone()]; node_txn.clear(); @@ -7803,9 +8116,9 @@ fn test_bump_penalty_txn_on_revoked_htlcs() { check_spends!(node_txn[1], revoked_local_txn[0]); // Note that these are both bogus - they spend outputs already claimed in block 129: if node_txn[0].input[0].previous_output == revoked_htlc_txn[0].input[0].previous_output { - assert_eq!(node_txn[1].input[0].previous_output, revoked_htlc_txn[1].input[0].previous_output); + assert_eq!(node_txn[1].input[0].previous_output, revoked_htlc_txn[2].input[0].previous_output); } else { - assert_eq!(node_txn[0].input[0].previous_output, revoked_htlc_txn[1].input[0].previous_output); + assert_eq!(node_txn[0].input[0].previous_output, revoked_htlc_txn[2].input[0].previous_output); assert_eq!(node_txn[1].input[0].previous_output, revoked_htlc_txn[0].input[0].previous_output); } @@ -7821,10 +8134,10 @@ fn test_bump_penalty_txn_on_revoked_htlcs() { assert_eq!(node_txn.len(), 1); assert_eq!(node_txn[0].input.len(), 2); - check_spends!(node_txn[0], revoked_htlc_txn[0], revoked_htlc_txn[1]); + check_spends!(node_txn[0], revoked_htlc_txn[0], revoked_htlc_txn[2]); // Verify bumped tx is different and 25% bump heuristic assert_ne!(first, node_txn[0].txid()); - let fee_2 = revoked_htlc_txn[0].output[0].value + revoked_htlc_txn[1].output[0].value - node_txn[0].output[0].value; + let fee_2 = revoked_htlc_txn[0].output[0].value + revoked_htlc_txn[2].output[0].value - node_txn[0].output[0].value; let feerate_2 = fee_2 * 1000 / node_txn[0].get_weight() as u64; assert!(feerate_2 * 100 > feerate_1 * 125); let txn = vec![node_txn[0].clone()]; @@ -7875,46 +8188,47 @@ fn test_bump_penalty_txn_on_remote_commitment() { assert_eq!(remote_txn[0].input[0].previous_output.txid, chan.3.txid()); // Claim a HTLC without revocation (provide B monitor with preimage) - nodes[1].node.claim_funds(payment_preimage, 3_000_000); + nodes[1].node.claim_funds(payment_preimage); mine_transaction(&nodes[1], &remote_txn[0]); check_added_monitors!(nodes[1], 2); + connect_blocks(&nodes[1], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires // One or more claim tx should have been broadcast, check it let timeout; let preimage; + let preimage_bump; let feerate_timeout; let feerate_preimage; { let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 5); // 2 * claim tx (broadcasted from ChannelMonitor) + local commitment tx + local HTLC-timeout + local HTLC-success (broadcasted from ChannelManager) + // 9 transactions including: + // 1*2 ChannelManager local broadcasts of commitment + HTLC-Success + // 1*3 ChannelManager local broadcasts of commitment + HTLC-Success + HTLC-Timeout + // 2 * HTLC-Success (one RBF bump we'll check later) + // 1 * HTLC-Timeout + assert_eq!(node_txn.len(), 8); assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[1].input.len(), 1); + assert_eq!(node_txn[6].input.len(), 1); check_spends!(node_txn[0], remote_txn[0]); - check_spends!(node_txn[1], remote_txn[0]); - check_spends!(node_txn[2], chan.3); - check_spends!(node_txn[3], node_txn[2]); - check_spends!(node_txn[4], node_txn[2]); - if node_txn[0].input[0].witness.last().unwrap().len() == ACCEPTED_HTLC_SCRIPT_WEIGHT { - timeout = node_txn[0].txid(); - let index = node_txn[0].input[0].previous_output.vout; - let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value; - feerate_timeout = fee * 1000 / node_txn[0].get_weight() as u64; - - preimage = node_txn[1].txid(); - let index = node_txn[1].input[0].previous_output.vout; - let fee = remote_txn[0].output[index as usize].value - node_txn[1].output[0].value; - feerate_preimage = fee * 1000 / node_txn[1].get_weight() as u64; - } else { - timeout = node_txn[1].txid(); - let index = node_txn[1].input[0].previous_output.vout; - let fee = remote_txn[0].output[index as usize].value - node_txn[1].output[0].value; - feerate_timeout = fee * 1000 / node_txn[1].get_weight() as u64; - - preimage = node_txn[0].txid(); - let index = node_txn[0].input[0].previous_output.vout; - let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value; - feerate_preimage = fee * 1000 / node_txn[0].get_weight() as u64; - } + check_spends!(node_txn[6], remote_txn[0]); + assert_eq!(node_txn[0].input[0].previous_output, node_txn[3].input[0].previous_output); + preimage_bump = node_txn[3].clone(); + + check_spends!(node_txn[1], chan.3); + check_spends!(node_txn[2], node_txn[1]); + assert_eq!(node_txn[1], node_txn[4]); + assert_eq!(node_txn[2], node_txn[5]); + + timeout = node_txn[6].txid(); + let index = node_txn[6].input[0].previous_output.vout; + let fee = remote_txn[0].output[index as usize].value - node_txn[6].output[0].value; + feerate_timeout = fee * 1000 / node_txn[6].get_weight() as u64; + + preimage = node_txn[0].txid(); + let index = node_txn[0].input[0].previous_output.vout; + let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value; + feerate_preimage = fee * 1000 / node_txn[0].get_weight() as u64; + node_txn.clear(); }; assert_ne!(feerate_timeout, 0); @@ -7924,36 +8238,24 @@ fn test_bump_penalty_txn_on_remote_commitment() { connect_blocks(&nodes[1], 15); { let mut node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn.len(), 2); + assert_eq!(node_txn.len(), 1); assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[1].input.len(), 1); + assert_eq!(preimage_bump.input.len(), 1); check_spends!(node_txn[0], remote_txn[0]); - check_spends!(node_txn[1], remote_txn[0]); - if node_txn[0].input[0].witness.last().unwrap().len() == ACCEPTED_HTLC_SCRIPT_WEIGHT { - let index = node_txn[0].input[0].previous_output.vout; - let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value; - let new_feerate = fee * 1000 / node_txn[0].get_weight() as u64; - assert!(new_feerate * 100 > feerate_timeout * 125); - assert_ne!(timeout, node_txn[0].txid()); - - let index = node_txn[1].input[0].previous_output.vout; - let fee = remote_txn[0].output[index as usize].value - node_txn[1].output[0].value; - let new_feerate = fee * 1000 / node_txn[1].get_weight() as u64; - assert!(new_feerate * 100 > feerate_preimage * 125); - assert_ne!(preimage, node_txn[1].txid()); - } else { - let index = node_txn[1].input[0].previous_output.vout; - let fee = remote_txn[0].output[index as usize].value - node_txn[1].output[0].value; - let new_feerate = fee * 1000 / node_txn[1].get_weight() as u64; - assert!(new_feerate * 100 > feerate_timeout * 125); - assert_ne!(timeout, node_txn[1].txid()); - - let index = node_txn[0].input[0].previous_output.vout; - let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value; - let new_feerate = fee * 1000 / node_txn[0].get_weight() as u64; - assert!(new_feerate * 100 > feerate_preimage * 125); - assert_ne!(preimage, node_txn[0].txid()); - } + check_spends!(preimage_bump, remote_txn[0]); + + let index = preimage_bump.input[0].previous_output.vout; + let fee = remote_txn[0].output[index as usize].value - preimage_bump.output[0].value; + let new_feerate = fee * 1000 / preimage_bump.get_weight() as u64; + assert!(new_feerate * 100 > feerate_timeout * 125); + assert_ne!(timeout, preimage_bump.txid()); + + let index = node_txn[0].input[0].previous_output.vout; + let fee = remote_txn[0].output[index as usize].value - node_txn[0].output[0].value; + let new_feerate = fee * 1000 / node_txn[0].get_weight() as u64; + assert!(new_feerate * 100 > feerate_preimage * 125); + assert_ne!(preimage, node_txn[0].txid()); + node_txn.clear(); } @@ -8012,10 +8314,10 @@ fn test_bump_txn_sanitize_tracking_maps() { assert_eq!(revoked_local_txn[0].input[0].previous_output.txid, chan.3.txid()); // Revoke local commitment tx - claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage, 9_000_000); + claim_payment(&nodes[0], &vec!(&nodes[1])[..], payment_preimage); // Broadcast set of revoked txn on A - connect_blocks(&nodes[0], 52 - CHAN_CONFIRM_DEPTH); + connect_blocks(&nodes[0], TEST_FINAL_CLTV + 2 - CHAN_CONFIRM_DEPTH); expect_pending_htlcs_forwardable_ignore!(nodes[0]); assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 0); @@ -8107,7 +8409,178 @@ fn test_simple_mpp() { route.paths[1][0].short_channel_id = chan_2_id; route.paths[1][1].short_channel_id = chan_4_id; send_along_route_with_secret(&nodes[0], route, &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], 200_000, payment_hash, payment_secret); - claim_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], false, payment_preimage, 200_000); + claim_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], false, payment_preimage); +} + +#[test] +fn test_preimage_storage() { + // Simple test of payment preimage storage allowing no client-side storage to claim payments + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id; + + { + let (payment_hash, payment_secret) = nodes[1].node.create_inbound_payment(Some(100_000), 7200, 42); + + let logger = test_utils::TestLogger::new(); + let net_graph_msg_handler = &nodes[0].net_graph_msg_handler; + let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &[], 100_000, TEST_FINAL_CLTV, &logger).unwrap(); + nodes[0].node.send_payment(&route, payment_hash, &Some(payment_secret)).unwrap(); + check_added_monitors!(nodes[0], 1); + let mut events = nodes[0].node.get_and_clear_pending_msg_events(); + let mut payment_event = SendEvent::from_event(events.pop().unwrap()); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]); + commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false); + } + // Note that after leaving the above scope we have no knowledge of any arguments or return + // values from previous calls. + expect_pending_htlcs_forwardable!(nodes[1]); + let events = nodes[1].node.get_and_clear_pending_events(); + assert_eq!(events.len(), 1); + match events[0] { + Event::PaymentReceived { payment_preimage, user_payment_id, .. } => { + assert_eq!(user_payment_id, 42); + claim_payment(&nodes[0], &[&nodes[1]], payment_preimage.unwrap()); + }, + _ => panic!("Unexpected event"), + } +} + +#[test] +fn test_secret_timeout() { + // Simple test of payment secret storage time outs + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id; + + let (payment_hash, payment_secret_1) = nodes[1].node.create_inbound_payment(Some(100_000), 2, 0); + + // We should fail to register the same payment hash twice, at least until we've connected a + // block with time 7200 + CHAN_CONFIRM_DEPTH + 1. + if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2, 0) { + assert_eq!(err, "Duplicate payment hash"); + } else { panic!(); } + let mut block = { + let node_1_blocks = nodes[1].blocks.lock().unwrap(); + Block { + header: BlockHeader { + version: 0x2000000, + prev_blockhash: node_1_blocks.last().unwrap().0.block_hash(), + merkle_root: Default::default(), + time: node_1_blocks.len() as u32 + 7200, bits: 42, nonce: 42 }, + txdata: vec![], + } + }; + connect_block(&nodes[1], &block); + if let Err(APIError::APIMisuseError { err }) = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2, 0) { + assert_eq!(err, "Duplicate payment hash"); + } else { panic!(); } + + // If we then connect the second block, we should be able to register the same payment hash + // again with a different user_payment_id (this time getting a new payment secret). + block.header.prev_blockhash = block.header.block_hash(); + block.header.time += 1; + connect_block(&nodes[1], &block); + let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(payment_hash, Some(100_000), 2, 42).unwrap(); + assert_ne!(payment_secret_1, our_payment_secret); + + { + let logger = test_utils::TestLogger::new(); + let net_graph_msg_handler = &nodes[0].net_graph_msg_handler; + let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &[], 100_000, TEST_FINAL_CLTV, &logger).unwrap(); + nodes[0].node.send_payment(&route, payment_hash, &Some(our_payment_secret)).unwrap(); + check_added_monitors!(nodes[0], 1); + let mut events = nodes[0].node.get_and_clear_pending_msg_events(); + let mut payment_event = SendEvent::from_event(events.pop().unwrap()); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]); + commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false); + } + // Note that after leaving the above scope we have no knowledge of any arguments or return + // values from previous calls. + expect_pending_htlcs_forwardable!(nodes[1]); + let events = nodes[1].node.get_and_clear_pending_events(); + assert_eq!(events.len(), 1); + match events[0] { + Event::PaymentReceived { payment_preimage, payment_secret, user_payment_id, .. } => { + assert!(payment_preimage.is_none()); + assert_eq!(user_payment_id, 42); + assert_eq!(payment_secret, our_payment_secret); + // We don't actually have the payment preimage with which to claim this payment! + }, + _ => panic!("Unexpected event"), + } +} + +#[test] +fn test_bad_secret_hash() { + // Simple test of unregistered payment hash/invalid payment secret handling + let chanmon_cfgs = create_chanmon_cfgs(2); + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[None, None]); + let nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()).0.contents.short_channel_id; + + let random_payment_hash = PaymentHash([42; 32]); + let random_payment_secret = PaymentSecret([43; 32]); + let (our_payment_hash, our_payment_secret) = nodes[1].node.create_inbound_payment(Some(100_000), 2, 0); + + let logger = test_utils::TestLogger::new(); + let net_graph_msg_handler = &nodes[0].net_graph_msg_handler; + let route = get_route(&nodes[0].node.get_our_node_id(), &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[1].node.get_our_node_id(), Some(InvoiceFeatures::known()), None, &[], 100_000, TEST_FINAL_CLTV, &logger).unwrap(); + + // All the below cases should end up being handled exactly identically, so we macro the + // resulting events. + macro_rules! handle_unknown_invalid_payment_data { + () => { + check_added_monitors!(nodes[0], 1); + let mut events = nodes[0].node.get_and_clear_pending_msg_events(); + let payment_event = SendEvent::from_event(events.pop().unwrap()); + nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]); + commitment_signed_dance!(nodes[1], nodes[0], payment_event.commitment_msg, false); + + // We have to forward pending HTLCs once to process the receipt of the HTLC and then + // again to process the pending backwards-failure of the HTLC + expect_pending_htlcs_forwardable!(nodes[1]); + expect_pending_htlcs_forwardable!(nodes[1]); + check_added_monitors!(nodes[1], 1); + + // We should fail the payment back + let mut events = nodes[1].node.get_and_clear_pending_msg_events(); + match events.pop().unwrap() { + MessageSendEvent::UpdateHTLCs { node_id: _, updates: msgs::CommitmentUpdate { update_fail_htlcs, commitment_signed, .. } } => { + nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlcs[0]); + commitment_signed_dance!(nodes[0], nodes[1], commitment_signed, false); + }, + _ => panic!("Unexpected event"), + } + } + } + + let expected_error_code = 0x4000|15; // incorrect_or_unknown_payment_details + // Error data is the HTLC value (100,000) and current block height + let expected_error_data = [0, 0, 0, 0, 0, 1, 0x86, 0xa0, 0, 0, 0, CHAN_CONFIRM_DEPTH as u8]; + + // Send a payment with the right payment hash but the wrong payment secret + nodes[0].node.send_payment(&route, our_payment_hash, &Some(random_payment_secret)).unwrap(); + handle_unknown_invalid_payment_data!(); + expect_payment_failed!(nodes[0], our_payment_hash, true, expected_error_code, expected_error_data); + + // Send a payment with a random payment hash, but the right payment secret + nodes[0].node.send_payment(&route, random_payment_hash, &Some(our_payment_secret)).unwrap(); + handle_unknown_invalid_payment_data!(); + expect_payment_failed!(nodes[0], random_payment_hash, true, expected_error_code, expected_error_data); + + // Send a payment with a random payment hash and random payment secret + nodes[0].node.send_payment(&route, random_payment_hash, &Some(random_payment_secret)).unwrap(); + handle_unknown_invalid_payment_data!(); + expect_payment_failed!(nodes[0], random_payment_hash, true, expected_error_code, expected_error_data); } #[test] @@ -8130,7 +8603,7 @@ fn test_update_err_monitor_lockdown() { let outpoint = OutPoint { txid: chan_1.3.txid(), index: 0 }; // Rebalance the network to generate htlc in the two directions - send_payment(&nodes[0], &vec!(&nodes[1])[..], 10_000_000, 10_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 10_000_000); // Route a HTLC from node 0 to node 1 (but don't settle) let preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 9_000_000).0; @@ -8152,10 +8625,13 @@ fn test_update_err_monitor_lockdown() { watchtower }; let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + // Make the tx_broadcaster aware of enough blocks that it doesn't think we're violating + // transaction lock time requirements here. + chanmon_cfgs[0].tx_broadcaster.blocks.lock().unwrap().resize(200, (header, 0)); watchtower.chain_monitor.block_connected(&Block { header, txdata: vec![] }, 200); // Try to update ChannelMonitor - assert!(nodes[1].node.claim_funds(preimage, 9_000_000)); + assert!(nodes[1].node.claim_funds(preimage)); check_added_monitors!(nodes[1], 1); let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); assert_eq!(updates.update_fulfill_htlcs.len(), 1); @@ -8189,7 +8665,7 @@ fn test_concurrent_monitor_claim() { let outpoint = OutPoint { txid: chan_1.3.txid(), index: 0 }; // Rebalance the network to generate htlc in the two directions - send_payment(&nodes[0], &vec!(&nodes[1])[..], 10_000_000, 10_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 10_000_000); // Route a HTLC from node 0 to node 1 (but don't settle) route_payment(&nodes[0], &vec!(&nodes[1])[..], 9_000_000).0; @@ -8211,6 +8687,9 @@ fn test_concurrent_monitor_claim() { watchtower }; let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + // Make the tx_broadcaster aware of enough blocks that it doesn't think we're violating + // transaction lock time requirements here. + chanmon_cfgs[0].tx_broadcaster.blocks.lock().unwrap().resize((CHAN_CONFIRM_DEPTH + 1 + TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS) as usize, (header, 0)); watchtower_alice.chain_monitor.block_connected(&Block { header, txdata: vec![] }, CHAN_CONFIRM_DEPTH + 1 + TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS); // Watchtower Alice should have broadcast a commitment/HTLC-timeout @@ -8342,7 +8821,7 @@ fn test_htlc_no_detection() { // Create some initial channels let chan_1 = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001, InitFeatures::known(), InitFeatures::known()); - send_payment(&nodes[0], &vec!(&nodes[1])[..], 1_000_000, 1_000_000); + send_payment(&nodes[0], &vec!(&nodes[1])[..], 1_000_000); let (_, our_payment_hash, _) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 2_000_000); let local_txn = get_local_commitment_txn!(nodes[0], chan_1.2); assert_eq!(local_txn[0].input.len(), 1); @@ -8357,16 +8836,17 @@ fn test_htlc_no_detection() { chain::Listen::block_connected(&nodes[0].chain_monitor.chain_monitor, &Block { header, txdata: vec![local_txn[0].clone()] }, nodes[0].best_block_info().1 + 1); check_closed_broadcast!(nodes[0], true); check_added_monitors!(nodes[0], 1); + connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1); let htlc_timeout = { let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap(); - assert_eq!(node_txn[0].input.len(), 1); - assert_eq!(node_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); - check_spends!(node_txn[0], local_txn[0]); - node_txn[0].clone() + assert_eq!(node_txn[1].input.len(), 1); + assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); + check_spends!(node_txn[1], local_txn[0]); + node_txn[1].clone() }; - let header_201 = BlockHeader { version: 0x20000000, prev_blockhash: header.block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; + let header_201 = BlockHeader { version: 0x20000000, prev_blockhash: nodes[0].best_block_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 }; connect_block(&nodes[0], &Block { header: header_201, txdata: vec![htlc_timeout.clone()] }); connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1); expect_payment_failed!(nodes[0], our_payment_hash, true); @@ -8434,7 +8914,7 @@ fn do_test_onchain_htlc_settlement_after_close(broadcast_alice: bool, go_onchain // Step (5): // Carol then claims the funds and sends an update_fulfill message to Bob, and they go through the // process of removing the HTLC from their commitment transactions. - assert!(nodes[2].node.claim_funds(payment_preimage, 3_000_000)); + assert!(nodes[2].node.claim_funds(payment_preimage)); check_added_monitors!(nodes[2], 1); let carol_updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id()); assert!(carol_updates.update_add_htlcs.is_empty()); @@ -8688,7 +9168,7 @@ fn test_duplicate_chan_id() { let (funding_locked, _) = create_chan_between_nodes_with_value_confirm(&nodes[0], &nodes[1], &tx); let (announcement, as_update, bs_update) = create_chan_between_nodes_with_value_b(&nodes[0], &nodes[1], &funding_locked); update_nodes_with_chan_announce(&nodes, 0, 1, &announcement, &as_update, &bs_update); - send_payment(&nodes[0], &[&nodes[1]], 8000000, 8_000_000); + send_payment(&nodes[0], &[&nodes[1]], 8000000); } #[test] @@ -8804,3 +9284,86 @@ fn test_invalid_funding_tx() { } else { panic!(); } assert_eq!(nodes[1].node.list_channels().len(), 0); } + +fn do_test_tx_confirmed_skipping_blocks_immediate_broadcast(test_height_before_timelock: bool) { + // In the first version of the chain::Confirm interface, after a refactor was made to not + // broadcast CSV-locked transactions until their CSV lock is up, we wouldn't reliably broadcast + // transactions after a `transactions_confirmed` call. Specifically, if the chain, provided via + // `best_block_updated` is at height N, and a transaction output which we wish to spend at + // height N-1 (due to a CSV to height N-1) is provided at height N, we will not broadcast the + // spending transaction until height N+1 (or greater). This was due to the way + // `ChannelMonitor::transactions_confirmed` worked, only checking if we should broadcast a + // spending transaction at the height the input transaction was confirmed at, not whether we + // should broadcast a spending transaction at the current height. + // A second, similar, issue involved failing HTLCs backwards - because we only provided the + // height at which transactions were confirmed to `OnchainTx::update_claims_view`, it wasn't + // aware that the anti-reorg-delay had, in fact, already expired, waiting to fail-backwards + // until we learned about an additional block. + // + // As an additional check, if `test_height_before_timelock` is set, we instead test that we + // aren't broadcasting transactions too early (ie not broadcasting them at all). + let chanmon_cfgs = create_chanmon_cfgs(3); + let node_cfgs = create_node_cfgs(3, &chanmon_cfgs); + let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, None, None]); + let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs); + *nodes[0].connect_style.borrow_mut() = ConnectStyle::BestBlockFirstSkippingBlocks; + + create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known()); + let (chan_announce, _, channel_id, _) = create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::known(), InitFeatures::known()); + let (_, payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1_000_000); + nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), false); + nodes[2].node.peer_disconnected(&nodes[1].node.get_our_node_id(), false); + + nodes[1].node.force_close_channel(&channel_id).unwrap(); + check_closed_broadcast!(nodes[1], true); + check_added_monitors!(nodes[1], 1); + let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0); + assert_eq!(node_txn.len(), 1); + + let conf_height = nodes[1].best_block_info().1; + if !test_height_before_timelock { + connect_blocks(&nodes[1], 24 * 6); + } + nodes[1].chain_monitor.chain_monitor.transactions_confirmed( + &nodes[1].get_block_header(conf_height), &[(0, &node_txn[0])], conf_height); + if test_height_before_timelock { + // If we confirmed the close transaction, but timelocks have not yet expired, we should not + // generate any events or broadcast any transactions + assert!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty()); + assert!(nodes[1].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty()); + } else { + // We should broadcast an HTLC transaction spending our funding transaction first + let spending_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0); + assert_eq!(spending_txn.len(), 2); + assert_eq!(spending_txn[0], node_txn[0]); + check_spends!(spending_txn[1], node_txn[0]); + // We should also generate a SpendableOutputs event with the to_self output (as its + // timelock is up). + let descriptor_spend_txn = check_spendable_outputs!(nodes[1], node_cfgs[1].keys_manager); + assert_eq!(descriptor_spend_txn.len(), 1); + + // If we also discover that the HTLC-Timeout transaction was confirmed some time ago, we + // should immediately fail-backwards the HTLC to the previous hop, without waiting for an + // additional block built on top of the current chain. + nodes[1].chain_monitor.chain_monitor.transactions_confirmed( + &nodes[1].get_block_header(conf_height + 1), &[(0, &spending_txn[1])], conf_height + 1); + expect_pending_htlcs_forwardable!(nodes[1]); + check_added_monitors!(nodes[1], 1); + + let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()); + assert!(updates.update_add_htlcs.is_empty()); + assert!(updates.update_fulfill_htlcs.is_empty()); + assert_eq!(updates.update_fail_htlcs.len(), 1); + assert!(updates.update_fail_malformed_htlcs.is_empty()); + assert!(updates.update_fee.is_none()); + nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]); + commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, true, true); + expect_payment_failed!(nodes[0], payment_hash, false); + expect_payment_failure_chan_update!(nodes[0], chan_announce.contents.short_channel_id, true); + } +} +#[test] +fn test_tx_confirmed_skipping_blocks_immediate_broadcast() { + do_test_tx_confirmed_skipping_blocks_immediate_broadcast(false); + do_test_tx_confirmed_skipping_blocks_immediate_broadcast(true); +}