use chain::transaction::OutPoint;
use chain::keysinterface::{ChannelKeys, KeysInterface, SpendableOutputDescriptor};
+use chain::chaininterface;
use chain::chaininterface::{ChainListener, ChainWatchInterfaceUtil, BlockNotifier};
use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC};
use ln::channelmanager::{ChannelManager,ChannelManagerReadArgs,HTLCForwardInfo,RAACommitmentOrder, PaymentPreimage, PaymentHash, PaymentSecret, PaymentSendFailure, BREAKDOWN_TIMEOUT};
use ln::channelmonitor::{ChannelMonitor, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ManyChannelMonitor, ANTI_REORG_DELAY};
+use ln::channelmonitor;
use ln::channel::{Channel, ChannelError};
use ln::{chan_utils, onion_utils};
use ln::router::{Route, RouteHop};
use ln::msgs;
use ln::msgs::{ChannelMessageHandler,RoutingMessageHandler,HTLCFailChannelUpdate, ErrorAction};
use util::enforcing_trait_impls::EnforcingChannelKeys;
-use util::test_utils;
+use util::{byte_utils, test_utils};
use util::events::{Event, EventsProvider, MessageSendEvent, MessageSendEventsProvider};
use util::errors::APIError;
use util::ser::{Writeable, Writer, ReadableArgs};
let (temporary_channel_id, tx, funding_output) = create_funding_transaction(&nodes[0], 100000, 42);
if steps & 0x0f == 3 { return; }
- {
- nodes[0].node.funding_transaction_generated(&temporary_channel_id, funding_output);
- let mut added_monitors = nodes[0].chan_monitor.added_monitors.lock().unwrap();
- assert_eq!(added_monitors.len(), 1);
- assert_eq!(added_monitors[0].0, funding_output);
- added_monitors.clear();
- }
+ nodes[0].node.funding_transaction_generated(&temporary_channel_id, funding_output);
+ check_added_monitors!(nodes[0], 0);
let funding_created = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
if steps & 0x0f == 4 { return; }
nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates_2.update_fail_htlcs[0]);
commitment_signed_dance!(nodes[0], nodes[1], updates_2.commitment_signed, false, true);
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { ref payment_hash, ref rejected_by_dest, .. } => {
- assert_eq!(our_payment_hash, *payment_hash);
- assert!(!rejected_by_dest);
- },
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], our_payment_hash, false);
let msg_events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(msg_events.len(), 2);
_ => panic!("Unexpected event"),
}
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
- assert_eq!(payment_hash, payment_hash_2);
- assert!(!rejected_by_dest);
- },
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], payment_hash_2, false);
// Now forward all the pending HTLCs and claim them back
nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &initial_payment_event.msgs[0]);
nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
check_added_monitors!(nodes[1], 1);
connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
-
- let events = nodes[1].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, .. } => {
- assert_eq!(payment_hash, payment_hash_2);
- },
- _ => panic!("Unexpected event"),
- }
+ 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
check_added_monitors!(nodes[0], 1);
nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 200);
check_added_monitors!(nodes[1], 1);
- connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 200, true, header.bitcoin_hash());
+ expect_pending_htlcs_forwardable_ignore!(nodes[0]);
- let events = nodes[1].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, .. } => {
- assert_eq!(payment_hash, payment_hash_2);
- },
- _ => panic!("Unexpected event"),
- }
+ connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 200, true, header.bitcoin_hash());
+ 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(), 9);
// Revoke the old state
claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage, 3_000_000);
- route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
+ let (_, payment_hash) = route_payment(&nodes[0], &[&nodes[1], &nodes[2]], 3000000);
let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![revoked_local_txn[0].clone()] }, 1);
MessageSendEvent::PaymentFailureNetworkUpdate { .. } => {},
_ => panic!("Unexpected event"),
}
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { .. } => {},
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], payment_hash, false);
},
_ => panic!("Unexpected event"),
}
claim_payment(&nodes[0], &[&nodes[1]], payment_preimage_2, 1_000_000);
}
+fn do_test_htlc_timeout(send_partial_mpp: bool) {
+ // If the user fails to claim/fail an HTLC within the HTLC CLTV timeout we fail it for them
+ // to avoid our counterparty failing the channel.
+ 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::supported(), InitFeatures::supported());
+
+ let our_payment_hash = if send_partial_mpp {
+ let route = nodes[0].router.get_route(&nodes[1].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV).unwrap();
+ let (_, our_payment_hash) = get_payment_preimage_hash!(&nodes[0]);
+ let payment_secret = PaymentSecret([0xdb; 32]);
+ // Use the utility function send_payment_along_path to send the payment with MPP data which
+ // indicates there are more HTLCs coming.
+ nodes[0].node.send_payment_along_path(&route.paths[0], &our_payment_hash, &Some(payment_secret), 200000, CHAN_CONFIRM_DEPTH).unwrap();
+ check_added_monitors!(nodes[0], 1);
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ // Now do the relevant commitment_signed/RAA dances along the path, noting that the final
+ // hop should *not* yet generate any PaymentReceived event(s).
+ pass_along_path(&nodes[0], &[&nodes[1]], 100000, our_payment_hash, Some(payment_secret), events.drain(..).next().unwrap(), false);
+ our_payment_hash
+ } else {
+ route_payment(&nodes[0], &[&nodes[1]], 100000).1
+ };
+
+ let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[0].block_notifier.block_connected_checked(&header, 101, &[], &[]);
+ nodes[1].block_notifier.block_connected_checked(&header, 101, &[], &[]);
+ for i in 102..TEST_FINAL_CLTV + 100 + 1 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS {
+ header.prev_blockhash = header.bitcoin_hash();
+ nodes[0].block_notifier.block_connected_checked(&header, i, &[], &[]);
+ nodes[1].block_notifier.block_connected_checked(&header, i, &[], &[]);
+ }
+
+ expect_pending_htlcs_forwardable!(nodes[1]);
+
+ check_added_monitors!(nodes[1], 1);
+ let htlc_timeout_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
+ assert!(htlc_timeout_updates.update_add_htlcs.is_empty());
+ assert_eq!(htlc_timeout_updates.update_fail_htlcs.len(), 1);
+ assert!(htlc_timeout_updates.update_fail_malformed_htlcs.is_empty());
+ assert!(htlc_timeout_updates.update_fee.is_none());
+
+ 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 123 as u32
+ 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(123));
+ expect_payment_failed!(nodes[0], our_payment_hash, true, 0x4000 | 15, &expected_failure_data[..]);
+}
+
+#[test]
+fn test_htlc_timeout() {
+ do_test_htlc_timeout(true);
+ do_test_htlc_timeout(false);
+}
+
+fn do_test_holding_cell_htlc_add_timeouts(forwarded_htlc: bool) {
+ // Tests that HTLCs in the holding cell are timed out after the requisite number of blocks.
+ 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);
+ create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::supported(), InitFeatures::supported());
+ create_announced_chan_between_nodes(&nodes, 1, 2, InitFeatures::supported(), InitFeatures::supported());
+
+ // Route a first payment to get the 1 -> 2 channel in awaiting_raa...
+ let route = nodes[1].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV).unwrap();
+ let (_, first_payment_hash) = get_payment_preimage_hash!(nodes[0]);
+ nodes[1].node.send_payment(&route, first_payment_hash, &None).unwrap();
+ assert_eq!(nodes[1].node.get_and_clear_pending_msg_events().len(), 1);
+ check_added_monitors!(nodes[1], 1);
+
+ // Now attempt to route a second payment, which should be placed in the holding cell
+ let (_, second_payment_hash) = get_payment_preimage_hash!(nodes[0]);
+ if forwarded_htlc {
+ let route = nodes[0].router.get_route(&nodes[2].node.get_our_node_id(), None, &Vec::new(), 100000, TEST_FINAL_CLTV).unwrap();
+ nodes[0].node.send_payment(&route, second_payment_hash, &None).unwrap();
+ check_added_monitors!(nodes[0], 1);
+ let payment_event = SendEvent::from_event(nodes[0].node.get_and_clear_pending_msg_events().remove(0));
+ 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);
+ expect_pending_htlcs_forwardable!(nodes[1]);
+ check_added_monitors!(nodes[1], 0);
+ } else {
+ nodes[1].node.send_payment(&route, second_payment_hash, &None).unwrap();
+ check_added_monitors!(nodes[1], 0);
+ }
+
+ let mut header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ nodes[1].block_notifier.block_connected_checked(&header, 101, &[], &[]);
+ for i in 102..TEST_FINAL_CLTV + 100 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS {
+ header.prev_blockhash = header.bitcoin_hash();
+ nodes[1].block_notifier.block_connected_checked(&header, i, &[], &[]);
+ }
+
+ assert!(nodes[1].node.get_and_clear_pending_msg_events().is_empty());
+ assert!(nodes[1].node.get_and_clear_pending_events().is_empty());
+
+ header.prev_blockhash = header.bitcoin_hash();
+ nodes[1].block_notifier.block_connected_checked(&header, TEST_FINAL_CLTV + 100 - CLTV_CLAIM_BUFFER - LATENCY_GRACE_PERIOD_BLOCKS, &[], &[]);
+
+ if forwarded_htlc {
+ expect_pending_htlcs_forwardable!(nodes[1]);
+ check_added_monitors!(nodes[1], 1);
+ let fail_commit = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(fail_commit.len(), 1);
+ match fail_commit[0] {
+ MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fail_htlcs, ref 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, true, true);
+ },
+ _ => 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");
+ }
+ } else {
+ expect_payment_failed!(nodes[1], second_payment_hash, true);
+ }
+}
+
+#[test]
+fn test_holding_cell_htlc_add_timeouts() {
+ do_test_holding_cell_htlc_add_timeouts(false);
+ do_test_holding_cell_htlc_add_timeouts(true);
+}
+
#[test]
fn test_invalid_channel_announcement() {
//Test BOLT 7 channel_announcement msg requirement for final node, gather data to build customed channel_announcement msgs
keys_manager = test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet, Arc::new(test_utils::TestLogger::new()));
let (_, nodes_0_deserialized_tmp) = {
let mut channel_monitors = HashMap::new();
- channel_monitors.insert(chan_0_monitor.get_funding_txo().unwrap(), &mut chan_0_monitor);
+ channel_monitors.insert(chan_0_monitor.get_funding_txo(), &mut chan_0_monitor);
<(Sha256dHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
default_config: config,
keys_manager: &keys_manager,
nodes_0_deserialized = nodes_0_deserialized_tmp;
assert!(nodes_0_read.is_empty());
- assert!(nodes[0].chan_monitor.add_monitor(chan_0_monitor.get_funding_txo().unwrap(), chan_0_monitor).is_ok());
+ assert!(nodes[0].chan_monitor.add_monitor(chan_0_monitor.get_funding_txo(), chan_0_monitor).is_ok());
nodes[0].node = &nodes_0_deserialized;
nodes[0].block_notifier.register_listener(nodes[0].node);
assert_eq!(nodes[0].node.list_channels().len(), 1);
keys_manager = test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet, Arc::new(test_utils::TestLogger::new()));
let (_, nodes_0_deserialized_tmp) = {
let mut channel_monitors = HashMap::new();
- channel_monitors.insert(chan_0_monitor.get_funding_txo().unwrap(), &mut chan_0_monitor);
+ channel_monitors.insert(chan_0_monitor.get_funding_txo(), &mut chan_0_monitor);
<(Sha256dHash, ChannelManager<EnforcingChannelKeys, &test_utils::TestChannelMonitor, &test_utils::TestBroadcaster, &test_utils::TestKeysInterface, &test_utils::TestFeeEstimator>)>::read(&mut nodes_0_read, ChannelManagerReadArgs {
default_config: UserConfig::default(),
keys_manager: &keys_manager,
nodes_0_deserialized = nodes_0_deserialized_tmp;
assert!(nodes_0_read.is_empty());
- assert!(nodes[0].chan_monitor.add_monitor(chan_0_monitor.get_funding_txo().unwrap(), chan_0_monitor).is_ok());
+ assert!(nodes[0].chan_monitor.add_monitor(chan_0_monitor.get_funding_txo(), chan_0_monitor).is_ok());
nodes[0].node = &nodes_0_deserialized;
check_added_monitors!(nodes[0], 1);
monitor: nodes[0].chan_monitor,
tx_broadcaster: nodes[0].tx_broadcaster.clone(),
logger: Arc::new(test_utils::TestLogger::new()),
- channel_monitors: &mut node_0_stale_monitors.iter_mut().map(|monitor| { (monitor.get_funding_txo().unwrap(), monitor) }).collect(),
+ channel_monitors: &mut node_0_stale_monitors.iter_mut().map(|monitor| { (monitor.get_funding_txo(), monitor) }).collect(),
}) { } else {
panic!("If the monitor(s) are stale, this indicates a bug and we should get an Err return");
};
monitor: nodes[0].chan_monitor,
tx_broadcaster: nodes[0].tx_broadcaster.clone(),
logger: Arc::new(test_utils::TestLogger::new()),
- channel_monitors: &mut node_0_monitors.iter_mut().map(|monitor| { (monitor.get_funding_txo().unwrap(), monitor) }).collect(),
+ channel_monitors: &mut node_0_monitors.iter_mut().map(|monitor| { (monitor.get_funding_txo(), monitor) }).collect(),
}).unwrap();
nodes_0_deserialized = nodes_0_deserialized_tmp;
assert!(nodes_0_read.is_empty());
}
for monitor in node_0_monitors.drain(..) {
- assert!(nodes[0].chan_monitor.add_monitor(monitor.get_funding_txo().unwrap(), monitor).is_ok());
+ assert!(nodes[0].chan_monitor.add_monitor(monitor.get_funding_txo(), monitor).is_ok());
check_added_monitors!(nodes[0], 1);
}
nodes[0].node = &nodes_0_deserialized;
let header_1 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
nodes[1].block_notifier.block_connected(&Block { header: header_1, txdata: vec![node_txn[0].clone()] }, 1);
connect_blocks(&nodes[1].block_notifier, ANTI_REORG_DELAY - 1, 1, true, header.bitcoin_hash());
- let events = nodes[1].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, .. } => {
- assert_eq!(payment_hash, our_payment_hash);
- },
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[1], our_payment_hash, true);
let spend_txn = check_spendable_outputs!(nodes[1], 1);
assert_eq!(spend_txn.len(), 3); // SpendableOutput: remote_commitment_tx.to_remote (*2), timeout_tx.output (*1)
_ => { panic!("Unexpected event"); }
}
}
- let events = nodes[0].node.get_and_clear_pending_events();
- match events[0] {
- Event::PaymentFailed { ref payment_hash, .. } => {
- assert_eq!(*payment_hash, duplicate_payment_hash);
- }
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], duplicate_payment_hash, false);
// Solve 2nd HTLC by broadcasting on B's chain HTLC-Success Tx from C
nodes[1].block_notifier.block_connected(&Block { header, txdata: vec![htlc_success_txn[0].clone()] }, 200);
let header_201 = BlockHeader { version: 0x20000000, prev_blockhash: header.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
nodes[0].block_notifier.block_connected(&Block { header: header_201, txdata: vec![htlc_timeout.clone()] }, 201);
connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 201, true, header_201.bitcoin_hash());
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, .. } => {
- assert_eq!(payment_hash, our_payment_hash);
- },
- _ => panic!("Unexpected event"),
- }
+ 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);
check_closed_broadcast!(nodes[0], false);
check_added_monitors!(nodes[0], 1);
} else {
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, rejected_by_dest, .. } => {
- assert_eq!(payment_hash, our_payment_hash);
- assert!(rejected_by_dest);
- },
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], our_payment_hash, true);
}
}
let events = nodes[0].node.get_and_clear_pending_events();
assert_eq!(events.len(), 1);
- if let &Event::PaymentFailed { payment_hash:_, ref rejected_by_dest, ref error_code } = &events[0] {
+ if let &Event::PaymentFailed { payment_hash:_, ref rejected_by_dest, ref error_code, error_data: _ } = &events[0] {
assert_eq!(*rejected_by_dest, !expected_retryable);
assert_eq!(*error_code, expected_error_code);
} else {
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());
let parent_hash = connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 2, true, header.bitcoin_hash());
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, .. } => {
- assert_eq!(payment_hash, dust_hash);
- },
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], dust_hash, true);
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
let header_2 = BlockHeader { version: 0x20000000, prev_blockhash: parent_hash, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
nodes[0].block_notifier.block_connected(&Block { header: header_2, txdata: vec![timeout_tx[0].clone()]}, 7);
let header_3 = BlockHeader { version: 0x20000000, prev_blockhash: header_2.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 8, true, header_3.bitcoin_hash());
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, .. } => {
- assert_eq!(payment_hash, non_dust_hash);
- },
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], non_dust_hash, true);
} else {
// We fail dust-HTLC 1 by broadcast of remote commitment tx. If revoked, fail also non-dust HTLC
nodes[0].block_notifier.block_connected(&Block { header, txdata: vec![bs_commitment_tx[0].clone()]}, 1);
let parent_hash = connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 2, true, header.bitcoin_hash());
let header_2 = BlockHeader { version: 0x20000000, prev_blockhash: parent_hash, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
if !revoked {
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, .. } => {
- assert_eq!(payment_hash, dust_hash);
- },
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], dust_hash, true);
assert_eq!(timeout_tx[0].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
// We fail non-dust-HTLC 2 by broadcast of local timeout tx on remote commitment tx
nodes[0].block_notifier.block_connected(&Block { header: header_2, txdata: vec![timeout_tx[0].clone()]}, 7);
assert_eq!(nodes[0].node.get_and_clear_pending_events().len(), 0);
let header_3 = BlockHeader { version: 0x20000000, prev_blockhash: header_2.bitcoin_hash(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
connect_blocks(&nodes[0].block_notifier, ANTI_REORG_DELAY - 1, 8, true, header_3.bitcoin_hash());
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events[0] {
- Event::PaymentFailed { payment_hash, .. } => {
- assert_eq!(payment_hash, non_dust_hash);
- },
- _ => panic!("Unexpected event"),
- }
+ expect_payment_failed!(nodes[0], non_dust_hash, true);
} else {
// If revoked, both dust & non-dust HTLCs should have been failed after ANTI_REORG_DELAY confs of revoked
// commitment tx
let logger: Arc<Logger> = Arc::new(test_utils::TestLogger::with_id(format!("node {}", 0)));
let mut chan_monitor = <(Sha256dHash, ChannelMonitor<EnforcingChannelKeys>)>::read(&mut ::std::io::Cursor::new(previous_chan_monitor_state.0), Arc::clone(&logger)).unwrap().1;
let chain_monitor = Arc::new(ChainWatchInterfaceUtil::new(Network::Testnet, Arc::clone(&logger)));
- tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new()), broadcasted_txn: Mutex::new(HashMap::new())};
+ tx_broadcaster = test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())};
fee_estimator = test_utils::TestFeeEstimator { sat_per_kw: 253 };
keys_manager = test_utils::TestKeysInterface::new(&nodes[0].node_seed, Network::Testnet, Arc::clone(&logger));
monitor = test_utils::TestChannelMonitor::new(chain_monitor.clone(), &tx_broadcaster, logger.clone(), &fee_estimator);
// Create some initial channels
create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::supported(), InitFeatures::supported());
- let (payment_preimage, _) = route_payment(&nodes[0], &[&nodes[1]], 10_000);
+ let (payment_preimage, payment_hash) = route_payment(&nodes[0], &[&nodes[1]], 10_000);
// Node 3 is expecting payment of 100_000 but receive 10_000,
// fail htlc like we didn't know the preimage.
nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &update_fail_htlc);
commitment_signed_dance!(nodes[0], nodes[1], commitment_signed, false, true);
- let events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- if let &Event::PaymentFailed { payment_hash:_, ref rejected_by_dest, ref error_code } = &events[0] {
- assert_eq!(*rejected_by_dest, true);
- assert_eq!(error_code.unwrap(), 0x4000|15);
- } else {
- panic!("Unexpected event");
- }
+ // 10_000 msat as u64, followed by a height of 99 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(99));
+ expect_payment_failed!(nodes[0], payment_hash, true, 0x4000|15, &expected_failure_data[..]);
nodes[1].node.get_and_clear_pending_events();
}
// Broadcast set of revoked txn on A
let header_128 = connect_blocks(&nodes[0].block_notifier, 128, 0, true, header.bitcoin_hash());
+ expect_pending_htlcs_forwardable_ignore!(nodes[0]);
+
let header_129 = BlockHeader { version: 0x20000000, prev_blockhash: header_128, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
nodes[0].block_notifier.block_connected(&Block { header: header_129, txdata: vec![revoked_local_txn[0].clone(), revoked_htlc_txn[0].clone(), revoked_htlc_txn[1].clone()] }, 129);
let first;
// Broadcast set of revoked txn on A
let header_128 = connect_blocks(&nodes[0].block_notifier, 128, 0, false, Default::default());
+ expect_pending_htlcs_forwardable_ignore!(nodes[0]);
+
let header_129 = BlockHeader { version: 0x20000000, prev_blockhash: header_128, merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
nodes[0].block_notifier.block_connected(&Block { header: header_129, txdata: vec![revoked_local_txn[0].clone()] }, 129);
check_closed_broadcast!(nodes[0], false);
// ...but with the right secret we should be able to claim all the way back
claim_payment_along_route_with_secret(&nodes[0], &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], false, payment_preimage, Some(payment_secret), 200_000);
}
+
+#[test]
+fn test_update_err_monitor_lockdown() {
+ // Our monitor will lock update of local commitment transaction if a broadcastion condition
+ // has been fulfilled (either force-close from Channel or block height requiring a HTLC-
+ // timeout). Trying to update monitor after lockdown should return a ChannelMonitorUpdateErr.
+ //
+ // This scenario may happen in a watchtower setup, where watchtower process a block height
+ // triggering a timeout while a slow-block-processing ChannelManager receives a local signed
+ // commitment at same time.
+
+ 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);
+
+ // Create some initial channel
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::supported(), InitFeatures::supported());
+ 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);
+
+ // 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;
+
+ // Copy SimpleManyChannelMonitor to simulate a watchtower and update block height of node 0 until its ChannelMonitor timeout HTLC onchain
+ let logger = Arc::new(test_utils::TestLogger::with_id(format!("node {}", 0)));
+ let watchtower = {
+ let monitors = nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap();
+ let monitor = monitors.get(&outpoint).unwrap();
+ let mut w = test_utils::TestVecWriter(Vec::new());
+ monitor.write_for_disk(&mut w).unwrap();
+ let new_monitor = <(Sha256dHash, channelmonitor::ChannelMonitor<EnforcingChannelKeys>)>::read(
+ &mut ::std::io::Cursor::new(&w.0), Arc::new(test_utils::TestLogger::new())).unwrap().1;
+ assert!(new_monitor == *monitor);
+ let chain_monitor = Arc::new(chaininterface::ChainWatchInterfaceUtil::new(Network::Testnet, logger.clone() as Arc<Logger>));
+ let watchtower = test_utils::TestChannelMonitor::new(chain_monitor, &chanmon_cfgs[0].tx_broadcaster, logger.clone(), &chanmon_cfgs[0].fee_estimator);
+ assert!(watchtower.add_monitor(outpoint, new_monitor).is_ok());
+ watchtower
+ };
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ watchtower.simple_monitor.block_connected(&header, 200, &vec![], &vec![]);
+
+ // Try to update ChannelMonitor
+ assert!(nodes[1].node.claim_funds(preimage, &None, 9_000_000));
+ 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);
+ nodes[0].node.handle_update_fulfill_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fulfill_htlcs[0]);
+ if let Some(ref mut channel) = nodes[0].node.channel_state.lock().unwrap().by_id.get_mut(&chan_1.2) {
+ if let Ok((_, _, _, update)) = channel.commitment_signed(&updates.commitment_signed, &node_cfgs[0].fee_estimator) {
+ if let Err(_) = watchtower.simple_monitor.update_monitor(outpoint, update.clone()) {} else { assert!(false); }
+ if let Ok(_) = nodes[0].chan_monitor.update_monitor(outpoint, update) {} else { assert!(false); }
+ } else { assert!(false); }
+ } else { assert!(false); };
+ // Our local monitor is in-sync and hasn't processed yet timeout
+ check_added_monitors!(nodes[0], 1);
+ let events = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+}