check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
connect_blocks(&nodes[0], TEST_FINAL_CLTV - 1); // Confirm blocks until the HTLC expires
- // Check we only broadcast 1 timeout tx
let claim_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
assert_eq!(claim_txn.len(), 8);
- assert_eq!(claim_txn[1], claim_txn[4]);
- assert_eq!(claim_txn[2], claim_txn[5]);
- check_spends!(claim_txn[1], chan_1.3);
- check_spends!(claim_txn[2], claim_txn[1]);
- check_spends!(claim_txn[7], claim_txn[1]);
+
+ check_spends!(claim_txn[0], remote_txn[0]); // Immediate HTLC claim with preimage
+
+ check_spends!(claim_txn[1], chan_1.3); // Alternative commitment tx
+ check_spends!(claim_txn[2], claim_txn[1]); // HTLC spend in alternative commitment tx
+
+ let bump_tx = if claim_txn[1] == claim_txn[4] {
+ assert_eq!(claim_txn[1], claim_txn[4]);
+ assert_eq!(claim_txn[2], claim_txn[5]);
+
+ check_spends!(claim_txn[7], claim_txn[1]); // HTLC timeout on alternative commitment tx
+
+ check_spends!(claim_txn[3], remote_txn[0]); // HTLC timeout on broadcasted commitment tx
+ &claim_txn[3]
+ } else {
+ assert_eq!(claim_txn[1], claim_txn[3]);
+ assert_eq!(claim_txn[2], claim_txn[4]);
+
+ check_spends!(claim_txn[5], claim_txn[1]); // HTLC timeout on alternative commitment tx
+
+ check_spends!(claim_txn[7], remote_txn[0]); // HTLC timeout on broadcasted commitment tx
+
+ &claim_txn[7]
+ };
assert_eq!(claim_txn[0].input.len(), 1);
- assert_eq!(claim_txn[3].input.len(), 1);
- assert_eq!(claim_txn[0].input[0].previous_output, claim_txn[3].input[0].previous_output);
+ assert_eq!(bump_tx.input.len(), 1);
+ assert_eq!(claim_txn[0].input[0].previous_output, bump_tx.input[0].previous_output);
assert_eq!(claim_txn[0].input.len(), 1);
assert_eq!(claim_txn[0].input[0].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT); // HTLC 1 <--> 0, preimage tx
- check_spends!(claim_txn[0], remote_txn[0]);
assert_eq!(remote_txn[0].output[claim_txn[0].input[0].previous_output.vout as usize].value, 800);
+
assert_eq!(claim_txn[6].input.len(), 1);
assert_eq!(claim_txn[6].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT); // HTLC 0 <--> 1, timeout tx
check_spends!(claim_txn[6], remote_txn[0]);
send_payment(&nodes[0], &vec!(&nodes[1], &nodes[2], &nodes[3], &nodes[4])[..], 8000000);
// Simple case with no pending HTLCs:
- nodes[1].node.peer_disconnected(&nodes[0].node.get_our_node_id(), true);
+ nodes[1].node.force_close_channel(&chan_1.2).unwrap();
check_added_monitors!(nodes[1], 1);
- check_closed_broadcast!(nodes[1], false);
+ check_closed_broadcast!(nodes[1], true);
{
let mut node_txn = test_txn_broadcast(&nodes[1], &chan_1, None, HTLCType::NONE);
assert_eq!(node_txn.len(), 1);
assert_eq!(nodes[0].node.list_channels().len(), 0);
assert_eq!(nodes[1].node.list_channels().len(), 1);
check_closed_event!(nodes[0], 1, ClosureReason::CommitmentTxConfirmed);
- check_closed_event!(nodes[1], 1, ClosureReason::DisconnectedPeer);
+ check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed);
// One pending HTLC is discarded by the force-close:
let payment_preimage_1 = route_payment(&nodes[1], &vec!(&nodes[2], &nodes[3])[..], 3000000).0;
// Simple case of one pending HTLC to HTLC-Timeout (note that the HTLC-Timeout is not
// broadcasted until we reach the timelock time).
- nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id(), true);
- check_closed_broadcast!(nodes[1], false);
+ nodes[1].node.force_close_channel(&chan_2.2).unwrap();
+ check_closed_broadcast!(nodes[1], true);
check_added_monitors!(nodes[1], 1);
{
let mut node_txn = test_txn_broadcast(&nodes[1], &chan_2, None, HTLCType::NONE);
check_closed_broadcast!(nodes[2], true);
assert_eq!(nodes[1].node.list_channels().len(), 0);
assert_eq!(nodes[2].node.list_channels().len(), 1);
- check_closed_event!(nodes[1], 1, ClosureReason::DisconnectedPeer);
+ check_closed_event!(nodes[1], 1, ClosureReason::HolderForceClosed);
check_closed_event!(nodes[2], 1, ClosureReason::CommitmentTxConfirmed);
macro_rules! claim_funds {
// nodes[3] gets the preimage, but nodes[2] already disconnected, resulting in a nodes[2]
// HTLC-Timeout and a nodes[3] claim against it (+ its own announces)
- nodes[2].node.peer_disconnected(&nodes[3].node.get_our_node_id(), true);
+ nodes[2].node.force_close_channel(&chan_3.2).unwrap();
check_added_monitors!(nodes[2], 1);
- check_closed_broadcast!(nodes[2], false);
+ check_closed_broadcast!(nodes[2], true);
let node2_commitment_txid;
{
let node_txn = test_txn_broadcast(&nodes[2], &chan_3, None, HTLCType::NONE);
check_closed_broadcast!(nodes[3], true);
assert_eq!(nodes[2].node.list_channels().len(), 0);
assert_eq!(nodes[3].node.list_channels().len(), 1);
- check_closed_event!(nodes[2], 1, ClosureReason::DisconnectedPeer);
+ check_closed_event!(nodes[2], 1, ClosureReason::HolderForceClosed);
check_closed_event!(nodes[3], 1, ClosureReason::CommitmentTxConfirmed);
// Drop the ChannelMonitor for the previous channel to avoid it broadcasting transactions and
chanmon_cfgs[1].keys_manager.disable_revocation_policy_check = true;
let node_cfgs = create_node_cfgs(2, &chanmon_cfgs);
let node_chanmgrs = create_node_chanmgrs(2, &node_cfgs, &user_cfgs);
- let nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+ let mut nodes = create_network(2, &node_cfgs, &node_chanmgrs);
+ *nodes[0].connect_style.borrow_mut() = ConnectStyle::FullBlockViaListen;
// Create some new channels:
let chan_5 = create_announced_chan_between_nodes(&nodes, 0, 1, InitFeatures::known(), InitFeatures::known());
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);
- // ChannelMonitor: justice tx revoked offered htlc, justice tx revoked received htlc, justice tx revoked to_local (3)
- // ChannelManager: local commmitment + local HTLC-timeout (2)
- // ChannelMonitor: bumped justice tx, after one increase, bumps on HTLC aren't generated not being substantial anymore, bump on revoked to_local isn't generated due to more room for expiration (2)
- // ChannelMonitor: local commitment + local HTLC-timeout (2)
+ assert!(node_txn.len() == 9 || node_txn.len() == 10);
// Check the pair local commitment and HTLC-timeout broadcast due to HTLC expiration
assert_eq!(node_txn[0].input.len(), 1);
expect_payment_path_successful!(nodes[0]);
}
+#[test]
+fn test_peer_disconnected_before_funding_broadcasted() {
+ // Test that channels are closed with `ClosureReason::DisconnectedPeer` if the peer disconnects
+ // before the funding transaction has been broadcasted.
+ 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);
+
+ // Open a channel between `nodes[0]` and `nodes[1]`, for which the funding transaction is never
+ // broadcasted, even though it's created by `nodes[0]`.
+ let expected_temporary_channel_id = nodes[0].node.create_channel(nodes[1].node.get_our_node_id(), 1_000_000, 500_000_000, 42, None).unwrap();
+ let open_channel = get_event_msg!(nodes[0], MessageSendEvent::SendOpenChannel, nodes[1].node.get_our_node_id());
+ nodes[1].node.handle_open_channel(&nodes[0].node.get_our_node_id(), InitFeatures::known(), &open_channel);
+ let accept_channel = get_event_msg!(nodes[1], MessageSendEvent::SendAcceptChannel, nodes[0].node.get_our_node_id());
+ nodes[0].node.handle_accept_channel(&nodes[1].node.get_our_node_id(), InitFeatures::known(), &accept_channel);
+
+ let (temporary_channel_id, tx, _funding_output) = create_funding_transaction(&nodes[0], 1_000_000, 42);
+ assert_eq!(temporary_channel_id, expected_temporary_channel_id);
+
+ assert!(nodes[0].node.funding_transaction_generated(&temporary_channel_id, tx.clone()).is_ok());
+
+ let funding_created_msg = get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
+ assert_eq!(funding_created_msg.temporary_channel_id, expected_temporary_channel_id);
+
+ // Even though the funding transaction is created by `nodes[0]`, the `FundingCreated` msg is
+ // never sent to `nodes[1]`, and therefore the tx is never signed by either party nor
+ // broadcasted.
+ {
+ assert_eq!(nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().len(), 0);
+ }
+
+ // Ensure that the channel is closed with `ClosureReason::DisconnectedPeer` when the peers are
+ // disconnected before the funding transaction was broadcasted.
+ 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);
+
+ check_closed_event!(nodes[0], 1, ClosureReason::DisconnectedPeer);
+ check_closed_event!(nodes[1], 1, ClosureReason::DisconnectedPeer);
+}
+
#[test]
fn test_simple_peer_disconnect() {
// Test that we can reconnect when there are no lost messages
let htlc_timeout_tx;
{ // Extract one of the two HTLC-Timeout transaction
let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap();
- // ChannelMonitor: timeout tx * 3, ChannelManager: local commitment tx
- assert_eq!(node_txn.len(), 4);
+ // ChannelMonitor: timeout tx * 2-or-3, ChannelManager: local commitment tx
+ assert!(node_txn.len() == 4 || node_txn.len() == 3);
check_spends!(node_txn[0], chan_2.3);
check_spends!(node_txn[1], commitment_txn[0]);
assert_eq!(node_txn[1].input.len(), 1);
- check_spends!(node_txn[2], commitment_txn[0]);
- assert_eq!(node_txn[2].input.len(), 1);
- assert_eq!(node_txn[1].input[0].previous_output, node_txn[2].input[0].previous_output);
- check_spends!(node_txn[3], commitment_txn[0]);
- assert_ne!(node_txn[1].input[0].previous_output, node_txn[3].input[0].previous_output);
+
+ if node_txn.len() > 3 {
+ check_spends!(node_txn[2], commitment_txn[0]);
+ assert_eq!(node_txn[2].input.len(), 1);
+ assert_eq!(node_txn[1].input[0].previous_output, node_txn[2].input[0].previous_output);
+
+ check_spends!(node_txn[3], commitment_txn[0]);
+ assert_ne!(node_txn[1].input[0].previous_output, node_txn[3].input[0].previous_output);
+ } else {
+ check_spends!(node_txn[2], commitment_txn[0]);
+ assert_ne!(node_txn[1].input[0].previous_output, node_txn[2].input[0].previous_output);
+ }
assert_eq!(node_txn[1].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
assert_eq!(node_txn[2].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
- assert_eq!(node_txn[3].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
+ if node_txn.len() > 3 {
+ assert_eq!(node_txn[3].input[0].witness.last().unwrap().len(), ACCEPTED_HTLC_SCRIPT_WEIGHT);
+ }
htlc_timeout_tx = node_txn[1].clone();
}
assert_eq!(node_txn[6].input.len(), 1);
check_spends!(node_txn[0], remote_txn[0]);
check_spends!(node_txn[6], remote_txn[0]);
- assert_eq!(node_txn[0].input[0].previous_output, node_txn[3].input[0].previous_output);
- preimage_bump = node_txn[3].clone();
check_spends!(node_txn[1], chan.3);
check_spends!(node_txn[2], node_txn[1]);
- assert_eq!(node_txn[1], node_txn[4]);
- assert_eq!(node_txn[2], node_txn[5]);
+
+ if node_txn[0].input[0].previous_output == node_txn[3].input[0].previous_output {
+ preimage_bump = node_txn[3].clone();
+ check_spends!(node_txn[3], remote_txn[0]);
+
+ assert_eq!(node_txn[1], node_txn[4]);
+ assert_eq!(node_txn[2], node_txn[5]);
+ } else {
+ preimage_bump = node_txn[7].clone();
+ check_spends!(node_txn[7], remote_txn[0]);
+ assert_eq!(node_txn[0].input[0].previous_output, node_txn[7].input[0].previous_output);
+
+ assert_eq!(node_txn[1], node_txn[3]);
+ assert_eq!(node_txn[2], node_txn[4]);
+ }
timeout = node_txn[6].txid();
let index = node_txn[6].input[0].previous_output.vout;
watchtower
};
let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ let block = Block { header, txdata: vec![] };
// Make the tx_broadcaster aware of enough blocks that it doesn't think we're violating
// transaction lock time requirements here.
- chanmon_cfgs[0].tx_broadcaster.blocks.lock().unwrap().resize(200, (header, 0));
- watchtower.chain_monitor.block_connected(&Block { header, txdata: vec![] }, 200);
+ chanmon_cfgs[0].tx_broadcaster.blocks.lock().unwrap().resize(200, (block.clone(), 0));
+ watchtower.chain_monitor.block_connected(&block, 200);
// Try to update ChannelMonitor
assert!(nodes[1].node.claim_funds(preimage));
watchtower
};
let header = BlockHeader { version: 0x20000000, prev_blockhash: Default::default(), merkle_root: Default::default(), time: 42, bits: 42, nonce: 42 };
+ let block = Block { header, txdata: vec![] };
// Make the tx_broadcaster aware of enough blocks that it doesn't think we're violating
// transaction lock time requirements here.
- chanmon_cfgs[0].tx_broadcaster.blocks.lock().unwrap().resize((CHAN_CONFIRM_DEPTH + 1 + TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS) as usize, (header, 0));
- watchtower_alice.chain_monitor.block_connected(&Block { header, txdata: vec![] }, CHAN_CONFIRM_DEPTH + 1 + TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS);
+ chanmon_cfgs[0].tx_broadcaster.blocks.lock().unwrap().resize((CHAN_CONFIRM_DEPTH + 1 + TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS) as usize, (block.clone(), 0));
+ watchtower_alice.chain_monitor.block_connected(&block, CHAN_CONFIRM_DEPTH + 1 + TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS);
// Watchtower Alice should have broadcast a commitment/HTLC-timeout
{