//! claim outputs on-chain.
use chain::transaction::OutPoint;
-use chain::chaininterface::{ChainListener, ChainWatchInterface};
+use chain::chaininterface::{ChainListener, ChainWatchInterface, ChainWatchInterfaceUtil};
use chain::keysinterface::{KeysInterface, SpendableOutputDescriptor, KeysManager};
+use chain::keysinterface;
use ln::channel::{COMMITMENT_TX_BASE_WEIGHT, COMMITMENT_TX_WEIGHT_PER_HTLC};
use ln::channelmanager::{ChannelManager,ChannelManagerReadArgs,HTLCForwardInfo,RAACommitmentOrder, PaymentPreimage, PaymentHash, BREAKDOWN_TIMEOUT};
use ln::channelmonitor::{ChannelMonitor, CLTV_CLAIM_BUFFER, LATENCY_GRACE_PERIOD_BLOCKS, ManyChannelMonitor, ANTI_REORG_DELAY};
use util::errors::APIError;
use util::ser::{Writeable, ReadableArgs};
use util::config::UserConfig;
+use util::logger::Logger;
use bitcoin::util::hash::BitcoinHash;
use bitcoin_hashes::sha256d::Hash as Sha256dHash;
use std::collections::{BTreeSet, HashMap, HashSet};
use std::default::Default;
-use std::sync::Arc;
+use std::sync::{Arc, Mutex};
use std::sync::atomic::Ordering;
use std::mem;
claim_payment(&nodes[1], &vec!(&nodes[3])[..], payment_preimage);
}
+#[test]
+fn test_duplicate_htlc_different_direction_onchain() {
+ // Test that ChannelMonitor doesn't generate 2 preimage txn
+ // when we have 2 HTLCs with same preimage that go across a node
+ // in opposite directions.
+ let nodes = create_network(2, &[None, None]);
+
+ let chan_1 = create_announced_chan_between_nodes(&nodes, 0, 1, LocalFeatures::new(), LocalFeatures::new());
+
+ // balancing
+ send_payment(&nodes[0], &vec!(&nodes[1])[..], 8000000);
+
+ let (payment_preimage, payment_hash) = route_payment(&nodes[0], &vec!(&nodes[1])[..], 900_000);
+
+ let route = nodes[1].router.get_route(&nodes[0].node.get_our_node_id(), None, &Vec::new(), 800_000, TEST_FINAL_CLTV).unwrap();
+ send_along_route_with_hash(&nodes[1], route, &vec!(&nodes[0])[..], 800_000, payment_hash);
+
+ // Provide preimage to node 0 by claiming payment
+ nodes[0].node.claim_funds(payment_preimage);
+ check_added_monitors!(nodes[0], 1);
+
+ // Broadcast node 1 commitment txn
+ let remote_txn = nodes[1].node.channel_state.lock().unwrap().by_id.get(&chan_1.2).unwrap().last_local_commitment_txn.clone();
+
+ assert_eq!(remote_txn[0].output.len(), 4); // 1 local, 1 remote, 1 htlc inbound, 1 htlc outbound
+ let mut has_both_htlcs = 0; // check htlcs match ones committed
+ for outp in remote_txn[0].output.iter() {
+ if outp.value == 800_000 / 1000 {
+ has_both_htlcs += 1;
+ } else if outp.value == 900_000 / 1000 {
+ has_both_htlcs += 1;
+ }
+ }
+ assert_eq!(has_both_htlcs, 2);
+
+ let header = BlockHeader { version: 0x2000_0000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+
+ nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![remote_txn[0].clone()] }, 1);
+
+ // 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(), 6);
+ 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].clone());
+ 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].clone());
+
+ let events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 2);
+ for e in events {
+ match e {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ MessageSendEvent::UpdateHTLCs { ref node_id, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, .. } } => {
+ assert!(update_add_htlcs.is_empty());
+ assert!(update_fail_htlcs.is_empty());
+ assert_eq!(update_fulfill_htlcs.len(), 1);
+ assert!(update_fail_malformed_htlcs.is_empty());
+ assert_eq!(nodes[1].node.get_our_node_id(), *node_id);
+ },
+ _ => panic!("Unexpected event"),
+ }
+ }
+}
+
fn do_channel_reserve_test(test_recv: bool) {
- use std::sync::atomic::Ordering;
use ln::msgs::HandleError;
let mut nodes = create_network(3, &[None, None, None]);
assert!(route.hops.iter().rev().skip(1).all(|h| h.fee_msat == feemsat));
let err = nodes[0].node.send_payment(route, our_payment_hash).err().unwrap();
match err {
- APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over the max HTLC value in flight"),
+ APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over the max HTLC value in flight our peer will accept"),
_ => panic!("Unknown error variants"),
}
}
let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value + 1);
let err = nodes[0].node.send_payment(route.clone(), our_payment_hash).err().unwrap();
match err {
- APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over the reserve value"),
+ APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over their reserve value"),
_ => panic!("Unknown error variants"),
}
}
{
let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_2 + 1);
match nodes[0].node.send_payment(route, our_payment_hash).err().unwrap() {
- APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over the reserve value"),
+ APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over their reserve value"),
_ => panic!("Unknown error variants"),
}
}
{
let (route, our_payment_hash, _) = get_route_and_payment_hash!(recv_value_22+1);
match nodes[0].node.send_payment(route, our_payment_hash).err().unwrap() {
- APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over the reserve value"),
+ APIError::ChannelUnavailable{err} => assert_eq!(err, "Cannot send value that would put us over their reserve value"),
_ => panic!("Unknown error variants"),
}
}
assert_eq!(node_txn[1].input.len(), 1);
assert_eq!(node_txn[2].input.len(), 1);
- let mut revoked_tx_map = HashMap::new();
- revoked_tx_map.insert(revoked_local_txn[0].txid(), revoked_local_txn[0].clone());
- node_txn[0].verify(&revoked_tx_map).unwrap();
- node_txn[1].verify(&revoked_tx_map).unwrap();
- node_txn[2].verify(&revoked_tx_map).unwrap();
+ fn get_txout(out_point: &BitcoinOutPoint, tx: &Transaction) -> Option<TxOut> {
+ if out_point.txid == tx.txid() {
+ tx.output.get(out_point.vout as usize).cloned()
+ } else {
+ None
+ }
+ }
+ node_txn[0].verify(|out|get_txout(out, &revoked_local_txn[0])).unwrap();
+ node_txn[1].verify(|out|get_txout(out, &revoked_local_txn[0])).unwrap();
+ node_txn[2].verify(|out|get_txout(out, &revoked_local_txn[0])).unwrap();
let mut witness_lens = BTreeSet::new();
witness_lens.insert(node_txn[0].input[0].witness.last().unwrap().len());
F2: for <'a> FnMut(&'a mut msgs::UpdateFailHTLC),
F3: FnMut(),
{
- use ln::msgs::HTLCFailChannelUpdate;
// reset block height
let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
let err = nodes[0].node.send_payment(route, our_payment_hash);
if let Err(APIError::ChannelUnavailable{err}) = err {
- assert_eq!(err, "Cannot send value that would put us over the max HTLC value in flight");
+ assert_eq!(err, "Cannot send value that would put us over the max HTLC value in flight our peer will accept");
} else {
assert!(false);
}
let err = nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
if let Err(msgs::HandleError{err, action: Some(msgs::ErrorAction::SendErrorMessage {..})}) = err {
- assert_eq!(err,"Remote HTLC add would put them over their max HTLC value in flight");
+ assert_eq!(err,"Remote HTLC add would put them over our max HTLC value");
} else {
assert!(false);
}
}
} else { assert!(false); }
}
+
+#[test]
+fn test_data_loss_protect() {
+ // We want to be sure that :
+ // * we don't broadcast our Local Commitment Tx in case of fallen behind
+ // * we close channel in case of detecting other being fallen behind
+ // * we are able to claim our own outputs thanks to remote my_current_per_commitment_point
+ let mut nodes = create_network(2, &[None, None]);
+
+ let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 1000000, LocalFeatures::new(), LocalFeatures::new());
+
+ // Cache node A state before any channel update
+ let previous_node_state = nodes[0].node.encode();
+ let mut previous_chan_monitor_state = test_utils::TestVecWriter(Vec::new());
+ nodes[0].chan_monitor.simple_monitor.monitors.lock().unwrap().iter().next().unwrap().1.write_for_disk(&mut previous_chan_monitor_state).unwrap();
+
+ 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);
+
+ // Restore node A from previous state
+ let logger: Arc<Logger> = Arc::new(test_utils::TestLogger::with_id(format!("node {}", 0)));
+ let chan_monitor = <(Sha256dHash, ChannelMonitor)>::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)));
+ let tx_broadcaster = Arc::new(test_utils::TestBroadcaster{txn_broadcasted: Mutex::new(Vec::new())});
+ let feeest = Arc::new(test_utils::TestFeeEstimator { sat_per_kw: 253 });
+ let monitor = Arc::new(test_utils::TestChannelMonitor::new(chain_monitor.clone(), tx_broadcaster.clone(), logger.clone(), feeest.clone()));
+ let mut channel_monitors = HashMap::new();
+ channel_monitors.insert(OutPoint { txid: chan.3.txid(), index: 0 }, &chan_monitor);
+ let node_state_0 = <(Sha256dHash, ChannelManager)>::read(&mut ::std::io::Cursor::new(previous_node_state), ChannelManagerReadArgs {
+ keys_manager: Arc::new(keysinterface::KeysManager::new(&nodes[0].node_seed, Network::Testnet, Arc::clone(&logger), 42, 21)),
+ fee_estimator: feeest.clone(),
+ monitor: monitor.clone(),
+ chain_monitor: chain_monitor.clone(),
+ logger: Arc::clone(&logger),
+ tx_broadcaster,
+ default_config: UserConfig::new(),
+ channel_monitors: &channel_monitors
+ }).unwrap().1;
+ nodes[0].node = Arc::new(node_state_0);
+ monitor.add_update_monitor(OutPoint { txid: chan.3.txid(), index: 0 }, chan_monitor.clone()).is_ok();
+ nodes[0].chan_monitor = monitor;
+ nodes[0].chain_monitor = chain_monitor;
+ check_added_monitors!(nodes[0], 1);
+
+ nodes[0].node.peer_connected(&nodes[1].node.get_our_node_id());
+ nodes[1].node.peer_connected(&nodes[0].node.get_our_node_id());
+
+ let reestablish_0 = get_chan_reestablish_msgs!(nodes[1], nodes[0]);
+
+ // Check we update monitor following learning of per_commitment_point from B
+ if let Err(err) = nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &reestablish_0[0]) {
+ if let Some(error) = err.action {
+ match error {
+ ErrorAction::SendErrorMessage { msg } => {
+ assert_eq!(msg.data, "We have fallen behind - we have received proof that if we broadcast remote is going to claim our funds - we can't do any automated broadcasting");
+ },
+ _ => panic!("Unexpected event!"),
+ }
+ } else { assert!(false); }
+ } else { assert!(false); }
+ check_added_monitors!(nodes[0], 1);
+
+ {
+ let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
+ assert_eq!(node_txn.len(), 0);
+ }
+
+ let mut reestablish_1 = Vec::with_capacity(1);
+ for msg in nodes[0].node.get_and_clear_pending_msg_events() {
+ if let MessageSendEvent::SendChannelReestablish { ref node_id, ref msg } = msg {
+ assert_eq!(*node_id, nodes[1].node.get_our_node_id());
+ reestablish_1.push(msg.clone());
+ } else if let MessageSendEvent::BroadcastChannelUpdate { .. } = msg {
+ } else {
+ panic!("Unexpected event")
+ }
+ }
+
+ // Check we close channel detecting A is fallen-behind
+ if let Err(err) = nodes[1].node.handle_channel_reestablish(&nodes[0].node.get_our_node_id(), &reestablish_1[0]) {
+ if let Some(error) = err.action {
+ match error {
+ ErrorAction::SendErrorMessage { msg } => {
+ assert_eq!(msg.data, "Peer attempted to reestablish channel with a very old local commitment transaction"); },
+ _ => panic!("Unexpected event!"),
+ }
+ } else { assert!(false); }
+ } else { assert!(false); }
+
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ match events[0] {
+ MessageSendEvent::BroadcastChannelUpdate { .. } => {},
+ _ => panic!("Unexpected event"),
+ }
+
+ // Check A is able to claim to_remote output
+ let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
+ assert_eq!(node_txn.len(), 1);
+ check_spends!(node_txn[0], chan.3.clone());
+ assert_eq!(node_txn[0].output.len(), 2);
+ let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42};
+ nodes[0].chain_monitor.block_connected_with_filtering(&Block { header, txdata: vec![node_txn[0].clone()]}, 1);
+ let spend_txn = check_spendable_outputs!(nodes[0], 1);
+ assert_eq!(spend_txn.len(), 1);
+ check_spends!(spend_txn[0], node_txn[0].clone());
+}
projects / rust-lightning / blobdiff