//! Further functional tests which test blockchain reorganizations.
use chain::channelmonitor::{ANTI_REORG_DELAY, ChannelMonitor};
-use chain::Watch;
+use chain::transaction::OutPoint;
+use chain::{Confirm, Watch};
use ln::channelmanager::{ChannelManager, ChannelManagerReadArgs};
use ln::features::InitFeatures;
-use ln::msgs::{ChannelMessageHandler, ErrorAction, HTLCFailChannelUpdate};
+use ln::msgs::ChannelMessageHandler;
use util::enforcing_trait_impls::EnforcingSigner;
-use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
+use util::events::{Event, MessageSendEvent, MessageSendEventsProvider, ClosureReason};
use util::test_utils;
use util::ser::{ReadableArgs, Writeable};
use bitcoin::blockdata::block::{Block, BlockHeader};
+use bitcoin::blockdata::script::Builder;
+use bitcoin::blockdata::opcodes;
use bitcoin::hash_types::BlockHash;
+use bitcoin::secp256k1::Secp256k1;
-use std::collections::HashMap;
-use std::mem;
+use prelude::*;
+use core::mem;
use ln::functional_test_utils::*;
connect_blocks(&nodes[1], 2*CHAN_CONFIRM_DEPTH + 1 - nodes[1].best_block_info().1);
connect_blocks(&nodes[2], 2*CHAN_CONFIRM_DEPTH + 1 - nodes[2].best_block_info().1);
- let (our_payment_preimage, our_payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000);
+ let (our_payment_preimage, our_payment_hash, _) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 1000000);
// Provide preimage to node 2 by claiming payment
- nodes[2].node.claim_funds(our_payment_preimage, &None, 1000000);
+ nodes[2].node.claim_funds(our_payment_preimage);
check_added_monitors!(nodes[2], 1);
get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
connect_block(&nodes[2], &Block { header, txdata: node_1_commitment_txn.clone() });
check_added_monitors!(nodes[2], 1);
check_closed_broadcast!(nodes[2], true); // We should get a BroadcastChannelUpdate (and *only* a BroadcstChannelUpdate)
+ check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed);
let node_2_commitment_txn = nodes[2].tx_broadcaster.txn_broadcasted.lock().unwrap();
assert_eq!(node_2_commitment_txn.len(), 3); // ChannelMonitor: 1 offered HTLC-Claim, ChannelManger: 1 local commitment tx, 1 Received HTLC-Claim
assert_eq!(node_2_commitment_txn[1].output.len(), 2); // to-remote and Received HTLC (to-self is dust)
vec![node_1_commitment_txn[0].clone(), node_2_commitment_txn[0].clone()]
} else {
// Broadcast node 2 commitment txn
- let node_2_commitment_txn = get_local_commitment_txn!(nodes[2], chan_2.2);
+ let mut node_2_commitment_txn = get_local_commitment_txn!(nodes[2], chan_2.2);
assert_eq!(node_2_commitment_txn.len(), 2); // 1 local commitment tx, 1 Received HTLC-Claim
assert_eq!(node_2_commitment_txn[0].output.len(), 2); // to-remote and Received HTLC (to-self is dust)
check_spends!(node_2_commitment_txn[0], chan_2.3);
// Give node 1 node 2's commitment transaction and get its response (timing the HTLC out)
mine_transaction(&nodes[1], &node_2_commitment_txn[0]);
- let node_1_commitment_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
- assert_eq!(node_1_commitment_txn.len(), 3); // ChannelMonitor: 1 offered HTLC-Timeout, ChannelManger: 1 local commitment tx, 1 Offered HTLC-Timeout
- assert_eq!(node_1_commitment_txn[1].output.len(), 2); // to-local and Offered HTLC (to-remote is dust)
- check_spends!(node_1_commitment_txn[1], chan_2.3);
- check_spends!(node_1_commitment_txn[2], node_1_commitment_txn[1]);
- check_spends!(node_1_commitment_txn[0], node_2_commitment_txn[0]);
-
- // Confirm node 2's commitment txn (and node 1's HTLC-Timeout) on node 1
- header.prev_blockhash = nodes[1].best_block_hash();
- connect_block(&nodes[1], &Block { header, txdata: vec![node_2_commitment_txn[0].clone(), node_1_commitment_txn[0].clone()] });
+ connect_blocks(&nodes[1], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires
+ let node_1_commitment_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
+ assert_eq!(node_1_commitment_txn.len(), 2); // ChannelMonitor: 1 offered HTLC-Timeout, ChannelManger: 1 local commitment tx
+ assert_eq!(node_1_commitment_txn[0].output.len(), 2); // to-local and Offered HTLC (to-remote is dust)
+ check_spends!(node_1_commitment_txn[0], chan_2.3);
+ check_spends!(node_1_commitment_txn[1], node_2_commitment_txn[0]);
+
+ // Confirm node 1's HTLC-Timeout on node 1
+ mine_transaction(&nodes[1], &node_1_commitment_txn[1]);
// ...but return node 2's commitment tx (and claim) in case claim is set and we're preparing to reorg
- node_2_commitment_txn
+ vec![node_2_commitment_txn.pop().unwrap()]
};
check_added_monitors!(nodes[1], 1);
check_closed_broadcast!(nodes[1], true); // We should get a BroadcastChannelUpdate (and *only* a BroadcstChannelUpdate)
+ check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
// Connect ANTI_REORG_DELAY - 2 blocks, giving us a confirmation count of ANTI_REORG_DELAY - 1.
connect_blocks(&nodes[1], ANTI_REORG_DELAY - 2);
check_added_monitors!(nodes[1], 0);
connect_block(&nodes[1], &block);
// ChannelManager only polls chain::Watch::release_pending_monitor_events when we
- // probe it for events, so we probe non-message events here (which should still end up empty):
- assert_eq!(nodes[1].node.get_and_clear_pending_events().len(), 0);
+ // probe it for events, so we probe non-message events here (which should just be the
+ // PaymentForwarded event).
+ expect_payment_forwarded!(nodes[1], nodes[0], Some(1000), true);
} else {
// Confirm the timeout tx and check that we fail the HTLC backwards
let block = Block {
if claim {
expect_payment_sent!(nodes[0], our_payment_preimage);
} else {
- let events = nodes[0].node.get_and_clear_pending_msg_events();
- assert_eq!(events.len(), 1);
- if let MessageSendEvent::PaymentFailureNetworkUpdate { update: HTLCFailChannelUpdate::ChannelClosed { ref is_permanent, .. } } = events[0] {
- assert!(is_permanent);
- } else { panic!("Unexpected event!"); }
- expect_payment_failed!(nodes[0], our_payment_hash, false);
+ expect_payment_failed_with_update!(nodes[0], our_payment_hash, false, chan_2.0.contents.short_channel_id, true);
}
}
let channel_state = nodes[0].node.channel_state.lock().unwrap();
assert_eq!(channel_state.by_id.len(), 1);
- assert_eq!(channel_state.short_to_id.len(), 1);
+ assert_eq!(channel_state.short_to_id.len(), 2);
mem::drop(channel_state);
if !reorg_after_reload {
disconnect_all_blocks(&nodes[0]);
}
if connect_style == ConnectStyle::FullBlockViaListen && !use_funding_unconfirmed {
- handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Funding transaction was un-confirmed. Locked at 6 confs, now have 2 confs.");
+ handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Channel closed because of an exception: Funding transaction was un-confirmed. Locked at 6 confs, now have 2 confs.");
} else {
- handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Funding transaction was un-confirmed. Locked at 6 confs, now have 0 confs.");
+ handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Channel closed because of an exception: Funding transaction was un-confirmed. Locked at 6 confs, now have 0 confs.");
}
check_added_monitors!(nodes[1], 1);
{
// it when we go to deserialize, and then use the ChannelManager.
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();
+ get_monitor!(nodes[0], chan.2).write(&mut chan_0_monitor_serialized).unwrap();
persister = test_utils::TestPersister::new();
let keys_manager = &chanmon_cfgs[0].keys_manager;
disconnect_all_blocks(&nodes[0]);
}
if connect_style == ConnectStyle::FullBlockViaListen && !use_funding_unconfirmed {
- handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Funding transaction was un-confirmed. Locked at 6 confs, now have 2 confs.");
+ handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Channel closed because of an exception: Funding transaction was un-confirmed. Locked at 6 confs, now have 2 confs.");
} else {
- handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Funding transaction was un-confirmed. Locked at 6 confs, now have 0 confs.");
+ handle_announce_close_broadcast_events(&nodes, 0, 1, true, "Channel closed because of an exception: Funding transaction was un-confirmed. Locked at 6 confs, now have 0 confs.");
}
check_added_monitors!(nodes[1], 1);
{
*nodes[0].chain_monitor.expect_channel_force_closed.lock().unwrap() = Some((chan.2, true));
nodes[0].node.test_process_background_events(); // Required to free the pending background monitor update
check_added_monitors!(nodes[0], 1);
+ let expected_err = if connect_style == ConnectStyle::FullBlockViaListen && !use_funding_unconfirmed {
+ "Funding transaction was un-confirmed. Locked at 6 confs, now have 2 confs."
+ } else {
+ "Funding transaction was un-confirmed. Locked at 6 confs, now have 0 confs."
+ };
+ check_closed_event!(nodes[1], 1, ClosureReason::CounterpartyForceClosed { peer_msg: "Channel closed because of an exception: ".to_owned() + expected_err });
+ check_closed_event!(nodes[0], 1, ClosureReason::ProcessingError { err: expected_err.to_owned() });
assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 1);
nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
// Now check that we can create a new channel
create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
- send_payment(&nodes[0], &[&nodes[1]], 8000000, 8_000_000);
+ send_payment(&nodes[0], &[&nodes[1]], 8000000);
}
#[test]
// Connect blocks on node A to advance height towards TEST_FINAL_CLTV
// Provide node A with both preimage
- nodes[0].node.claim_funds(payment_preimage_1, &None, 3_000_000);
- nodes[0].node.claim_funds(payment_preimage_2, &None, 3_000_000);
+ nodes[0].node.claim_funds(payment_preimage_1);
+ nodes[0].node.claim_funds(payment_preimage_2);
check_added_monitors!(nodes[0], 2);
nodes[0].node.get_and_clear_pending_events();
nodes[0].node.get_and_clear_pending_msg_events();
// Connect blocks on node A commitment transaction
mine_transaction(&nodes[0], &remote_txn[0]);
check_closed_broadcast!(nodes[0], true);
+ check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
check_added_monitors!(nodes[0], 1);
// Verify node A broadcast tx claiming both HTLCs
{
// Connect blocks on node B
connect_blocks(&nodes[1], 135);
check_closed_broadcast!(nodes[1], true);
+ check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
check_added_monitors!(nodes[1], 1);
// Verify node B broadcast 2 HTLC-timeout txn
let partial_claim_tx = {
node_txn.clear();
}
}
+
+fn do_test_to_remote_after_local_detection(style: ConnectStyle) {
+ // In previous code, detection of to_remote outputs in a counterparty commitment transaction
+ // was dependent on whether a local commitment transaction had been seen on-chain previously.
+ // This resulted in some edge cases around not being able to generate a SpendableOutput event
+ // after a reorg.
+ //
+ // Here, we test this by first confirming one set of commitment transactions, then
+ // disconnecting them and reconnecting another. We then confirm them and check that the correct
+ // SpendableOutput event is generated.
+ 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);
+
+ *nodes[0].connect_style.borrow_mut() = style;
+ *nodes[1].connect_style.borrow_mut() = style;
+
+ let (_, _, chan_id, funding_tx) =
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 100_000_000, InitFeatures::known(), InitFeatures::known());
+ let funding_outpoint = OutPoint { txid: funding_tx.txid(), index: 0 };
+ assert_eq!(funding_outpoint.to_channel_id(), 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);
+
+ mine_transaction(&nodes[0], &remote_txn_a[0]);
+ mine_transaction(&nodes[1], &remote_txn_a[0]);
+
+ assert!(nodes[0].node.list_channels().is_empty());
+ check_closed_broadcast!(nodes[0], true);
+ check_added_monitors!(nodes[0], 1);
+ check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
+ assert!(nodes[1].node.list_channels().is_empty());
+ check_closed_broadcast!(nodes[1], true);
+ check_added_monitors!(nodes[1], 1);
+ check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
+
+ // Drop transactions broadcasted in response to the first commitment transaction (we have good
+ // test coverage of these things already elsewhere).
+ assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0).len(), 1);
+ assert_eq!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0).len(), 1);
+
+ assert!(nodes[0].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+ assert!(nodes[1].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+
+ disconnect_blocks(&nodes[0], 1);
+ disconnect_blocks(&nodes[1], 1);
+
+ assert!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty());
+ assert!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty());
+ assert!(nodes[0].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+ assert!(nodes[1].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+
+ connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
+ connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
+
+ assert!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty());
+ assert!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty());
+ assert!(nodes[0].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+ assert!(nodes[1].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+
+ mine_transaction(&nodes[0], &remote_txn_b[0]);
+ mine_transaction(&nodes[1], &remote_txn_b[0]);
+
+ assert!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty());
+ assert!(nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().is_empty());
+ assert!(nodes[0].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+ assert!(nodes[1].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+
+ connect_blocks(&nodes[0], ANTI_REORG_DELAY - 1);
+ connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
+
+ let mut node_a_spendable = nodes[0].chain_monitor.chain_monitor.get_and_clear_pending_events();
+ assert_eq!(node_a_spendable.len(), 1);
+ if let Event::SpendableOutputs { outputs } = node_a_spendable.pop().unwrap() {
+ assert_eq!(outputs.len(), 1);
+ let spend_tx = nodes[0].keys_manager.backing.spend_spendable_outputs(&[&outputs[0]], Vec::new(),
+ Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, &Secp256k1::new()).unwrap();
+ check_spends!(spend_tx, remote_txn_b[0]);
+ }
+
+ // nodes[1] is waiting for the to_self_delay to expire, which is many more than
+ // ANTI_REORG_DELAY. Instead, walk it back and confirm the original remote_txn_a commitment
+ // again and check that nodes[1] generates a similar spendable output.
+ // Technically a reorg of ANTI_REORG_DELAY violates our assumptions, so this is undefined by
+ // our API spec, but we currently handle this correctly and there's little reason we shouldn't
+ // in the future.
+ assert!(nodes[1].chain_monitor.chain_monitor.get_and_clear_pending_events().is_empty());
+ disconnect_blocks(&nodes[1], ANTI_REORG_DELAY);
+ mine_transaction(&nodes[1], &remote_txn_a[0]);
+ connect_blocks(&nodes[1], ANTI_REORG_DELAY - 1);
+
+ let mut node_b_spendable = nodes[1].chain_monitor.chain_monitor.get_and_clear_pending_events();
+ assert_eq!(node_b_spendable.len(), 1);
+ if let Event::SpendableOutputs { outputs } = node_b_spendable.pop().unwrap() {
+ assert_eq!(outputs.len(), 1);
+ let spend_tx = nodes[1].keys_manager.backing.spend_spendable_outputs(&[&outputs[0]], Vec::new(),
+ Builder::new().push_opcode(opcodes::all::OP_RETURN).into_script(), 253, &Secp256k1::new()).unwrap();
+ check_spends!(spend_tx, remote_txn_a[0]);
+ }
+}
+
+#[test]
+fn test_to_remote_after_local_detection() {
+ do_test_to_remote_after_local_detection(ConnectStyle::BestBlockFirst);
+ do_test_to_remote_after_local_detection(ConnectStyle::BestBlockFirstSkippingBlocks);
+ do_test_to_remote_after_local_detection(ConnectStyle::TransactionsFirst);
+ do_test_to_remote_after_local_detection(ConnectStyle::TransactionsFirstSkippingBlocks);
+ do_test_to_remote_after_local_detection(ConnectStyle::FullBlockViaListen);
+}
projects / rust-lightning / blobdiff