X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Fln%2Freorg_tests.rs;h=c15365629015cb3b54600efab1486532c3a888fc;hb=d00e55077aa613457b6cc1957238a91a700873f8;hp=b745453a3c6799e012ddf3368be4136ef4831653;hpb=d82e6ba7a35f59157606a1d0e6c72832fa02beb6;p=rust-lightning diff --git a/lightning/src/ln/reorg_tests.rs b/lightning/src/ln/reorg_tests.rs index b745453a..c1536562 100644 --- a/lightning/src/ln/reorg_tests.rs +++ b/lightning/src/ln/reorg_tests.rs @@ -15,6 +15,7 @@ use crate::chain::transaction::OutPoint; use crate::chain::Confirm; use crate::events::{Event, MessageSendEventsProvider, ClosureReason, HTLCDestination, MessageSendEvent}; use crate::ln::msgs::{ChannelMessageHandler, Init}; +use crate::sign::OutputSpender; use crate::util::test_utils; use crate::util::ser::Writeable; use crate::util::string::UntrustedString; @@ -25,7 +26,7 @@ use bitcoin::secp256k1::Secp256k1; use crate::prelude::*; -use crate::ln::functional_test_utils::*; +use crate::ln::{functional_test_utils::*, ChannelId}; fn do_test_onchain_htlc_reorg(local_commitment: bool, claim: bool) { // Our on-chain HTLC-claim learning has a few properties worth testing: @@ -270,8 +271,9 @@ fn do_test_unconf_chan(reload_node: bool, reorg_after_reload: bool, use_funding_ if use_funding_unconfirmed { let relevant_txids = nodes[0].node.get_relevant_txids(); assert_eq!(relevant_txids.len(), 1); - let block_hash_opt = relevant_txids[0].1; + let block_hash_opt = relevant_txids[0].2; let expected_hash = nodes[0].get_block_header(chan_conf_height).block_hash(); + assert_eq!(relevant_txids[0].1, chan_conf_height); assert_eq!(block_hash_opt, Some(expected_hash)); let txid = relevant_txids[0].0; assert_eq!(txid, chan.3.txid()); @@ -315,8 +317,9 @@ fn do_test_unconf_chan(reload_node: bool, reorg_after_reload: bool, use_funding_ if use_funding_unconfirmed { let relevant_txids = nodes[0].node.get_relevant_txids(); assert_eq!(relevant_txids.len(), 1); - let block_hash_opt = relevant_txids[0].1; + let block_hash_opt = relevant_txids[0].2; let expected_hash = nodes[0].get_block_header(chan_conf_height).block_hash(); + assert_eq!(chan_conf_height, relevant_txids[0].1); assert_eq!(block_hash_opt, Some(expected_hash)); let txid = relevant_txids[0].0; assert_eq!(txid, chan.3.txid()); @@ -463,7 +466,7 @@ fn test_set_outpoints_partial_claiming() { // Connect blocks on node B connect_blocks(&nodes[1], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + 1); check_closed_broadcast!(nodes[1], true); - check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed, [nodes[0].node.get_our_node_id()], 1000000); + check_closed_event!(nodes[1], 1, ClosureReason::HTLCsTimedOut, [nodes[0].node.get_our_node_id()], 1000000); check_added_monitors!(nodes[1], 1); // Verify node B broadcast 2 HTLC-timeout txn let partial_claim_tx = { @@ -529,7 +532,7 @@ fn do_test_to_remote_after_local_detection(style: ConnectStyle) { let (_, _, chan_id, funding_tx) = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 100_000_000); let funding_outpoint = OutPoint { txid: funding_tx.txid(), index: 0 }; - assert_eq!(funding_outpoint.to_channel_id(), chan_id); + assert_eq!(ChannelId::v1_from_funding_outpoint(funding_outpoint), chan_id); let remote_txn_a = get_local_commitment_txn!(nodes[0], chan_id); let remote_txn_b = get_local_commitment_txn!(nodes[1], chan_id); @@ -664,6 +667,9 @@ fn test_htlc_preimage_claim_holder_commitment_after_counterparty_commitment_reor mine_transaction(&nodes[0], &commitment_tx_b); mine_transaction(&nodes[1], &commitment_tx_b); + if nodes[1].connect_style.borrow().updates_best_block_first() { + let _ = nodes[1].tx_broadcaster.txn_broadcast(); + } // Provide the preimage now, such that we only claim from the holder commitment (since it's // currently confirmed) and not the counterparty's. @@ -754,3 +760,122 @@ fn test_htlc_preimage_claim_prev_counterparty_commitment_after_current_counterpa // commitment (still unrevoked) is the currently confirmed closing transaction. assert_eq!(htlc_preimage_tx.input[0].witness.second_to_last().unwrap(), &payment_preimage.0[..]); } + +fn do_test_retries_own_commitment_broadcast_after_reorg(anchors: bool, revoked_counterparty_commitment: bool) { + // Tests that a node will retry broadcasting its own commitment after seeing a confirmed + // counterparty commitment be reorged out. + let mut chanmon_cfgs = create_chanmon_cfgs(2); + if revoked_counterparty_commitment { + chanmon_cfgs[1].keys_manager.disable_revocation_policy_check = true; + } + let node_cfgs = create_node_cfgs(2, &chanmon_cfgs); + let mut config = test_default_channel_config(); + if anchors { + config.channel_handshake_config.negotiate_anchors_zero_fee_htlc_tx = true; + config.manually_accept_inbound_channels = true; + } + let persister; + let new_chain_monitor; + let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &[Some(config), Some(config)]); + let nodes_1_deserialized; + let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs); + + let (_, _, chan_id, funding_tx) = create_announced_chan_between_nodes(&nodes, 0, 1); + + // Route a payment so we have an HTLC to claim as well. + let _ = route_payment(&nodes[0], &[&nodes[1]], 1_000_000); + + if revoked_counterparty_commitment { + // Trigger a fee update such that we advance the state. We will have B broadcast its state + // without the fee update. + let serialized_node = nodes[1].node.encode(); + let serialized_monitor = get_monitor!(nodes[1], chan_id).encode(); + + *chanmon_cfgs[0].fee_estimator.sat_per_kw.lock().unwrap() += 1; + nodes[0].node.timer_tick_occurred(); + check_added_monitors!(nodes[0], 1); + + let fee_update = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id()); + nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), &fee_update.update_fee.unwrap()); + commitment_signed_dance!(nodes[1], nodes[0], fee_update.commitment_signed, false); + + reload_node!( + nodes[1], config, &serialized_node, &[&serialized_monitor], persister, new_chain_monitor, nodes_1_deserialized + ); + } + + // Connect blocks until the HTLC expiry is met, prompting a commitment broadcast by A. + connect_blocks(&nodes[0], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + 1); + check_closed_broadcast(&nodes[0], 1, true); + check_added_monitors(&nodes[0], 1); + check_closed_event(&nodes[0], 1, ClosureReason::HTLCsTimedOut, false, &[nodes[1].node.get_our_node_id()], 100_000); + + { + let mut txn = nodes[0].tx_broadcaster.txn_broadcast(); + if anchors { + assert_eq!(txn.len(), 1); + let commitment_tx_a = txn.pop().unwrap(); + check_spends!(commitment_tx_a, funding_tx); + } else { + assert_eq!(txn.len(), 2); + let htlc_tx_a = txn.pop().unwrap(); + let commitment_tx_a = txn.pop().unwrap(); + check_spends!(commitment_tx_a, funding_tx); + check_spends!(htlc_tx_a, commitment_tx_a); + } + }; + + // B will also broadcast its own commitment. + nodes[1].node.force_close_broadcasting_latest_txn(&chan_id, &nodes[0].node.get_our_node_id()).unwrap(); + check_closed_broadcast(&nodes[1], 1, true); + check_added_monitors(&nodes[1], 1); + check_closed_event(&nodes[1], 1, ClosureReason::HolderForceClosed, false, &[nodes[0].node.get_our_node_id()], 100_000); + + let commitment_b = { + let mut txn = nodes[1].tx_broadcaster.txn_broadcast(); + assert_eq!(txn.len(), 1); + let tx = txn.pop().unwrap(); + check_spends!(tx, funding_tx); + tx + }; + + // Confirm B's commitment, A should now broadcast an HTLC timeout for commitment B. + mine_transaction(&nodes[0], &commitment_b); + { + let mut txn = nodes[0].tx_broadcaster.txn_broadcast(); + if nodes[0].connect_style.borrow().updates_best_block_first() { + // `commitment_a` and `htlc_timeout_a` are rebroadcast because the best block was + // updated prior to seeing `commitment_b`. + assert_eq!(txn.len(), if anchors { 2 } else { 3 }); + check_spends!(txn.last().unwrap(), commitment_b); + } else { + assert_eq!(txn.len(), 1); + check_spends!(txn[0], commitment_b); + } + } + + // Disconnect the block, allowing A to retry its own commitment. Note that we connect two + // blocks, one to get us back to the original height, and another to retry our pending claims. + disconnect_blocks(&nodes[0], 1); + connect_blocks(&nodes[0], 2); + { + let mut txn = nodes[0].tx_broadcaster.unique_txn_broadcast(); + if anchors { + assert_eq!(txn.len(), 1); + check_spends!(txn[0], funding_tx); + } else { + assert_eq!(txn.len(), 2); + check_spends!(txn[0], txn[1]); // HTLC timeout A + check_spends!(txn[1], funding_tx); // Commitment A + assert_ne!(txn[1].txid(), commitment_b.txid()); + } + } +} + +#[test] +fn test_retries_own_commitment_broadcast_after_reorg() { + do_test_retries_own_commitment_broadcast_after_reorg(false, false); + do_test_retries_own_commitment_broadcast_after_reorg(false, true); + do_test_retries_own_commitment_broadcast_after_reorg(true, false); + do_test_retries_own_commitment_broadcast_after_reorg(true, true); +}