//! 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;
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
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]);
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"),
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);
_ => 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);
}
}
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();
mine_transaction(&nodes[1], &node_txn[0]);
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]);
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]);
}
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]);
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]);
}
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[1]);
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]);
}
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]);
// 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
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);
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);
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);
// 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);
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);
}
_ => 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);
}
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]);
}
} 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);
+}
projects / rust-lightning / blobdiff