check_added_monitors!(nodes[1], 1);
check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed);
let node_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().clone();
- assert_eq!(node_txn.len(), 6); // ChannelManager : 3 (commitment tx + HTLC-Sucess * 2), ChannelMonitor : 3 (HTLC-Success, 2* RBF bumps of above HTLC txn)
+ assert!(node_txn.len() == 4 || node_txn.len() == 6); // ChannelManager : 3 (commitment tx + HTLC-Sucess * 2), ChannelMonitor : 3 (HTLC-Success, 2* RBF bumps of above HTLC txn)
let commitment_spend =
if node_txn[0].input[0].previous_output.txid == node_a_commitment_tx[0].txid() {
- check_spends!(node_txn[1], commitment_tx[0]);
- check_spends!(node_txn[2], commitment_tx[0]);
- assert_ne!(node_txn[1].input[0].previous_output.vout, node_txn[2].input[0].previous_output.vout);
+ if node_txn.len() == 6 {
+ // In some block `ConnectionStyle`s we may avoid broadcasting the double-spending
+ // transactions spending the HTLC outputs of C's commitment transaction. Otherwise,
+ // check that the extra broadcasts (double-)spend those here.
+ check_spends!(node_txn[1], commitment_tx[0]);
+ check_spends!(node_txn[2], commitment_tx[0]);
+ assert_ne!(node_txn[1].input[0].previous_output.vout, node_txn[2].input[0].previous_output.vout);
+ }
&node_txn[0]
} else {
check_spends!(node_txn[0], commitment_tx[0]);
assert_eq!(commitment_spend.input[1].witness.last().unwrap().len(), OFFERED_HTLC_SCRIPT_WEIGHT);
assert_eq!(commitment_spend.lock_time.0, 0);
assert!(commitment_spend.output[0].script_pubkey.is_v0_p2wpkh()); // direct payment
- check_spends!(node_txn[3], chan_1.3);
- assert_eq!(node_txn[3].input[0].witness.clone().last().unwrap().len(), 71);
- check_spends!(node_txn[4], node_txn[3]);
- check_spends!(node_txn[5], node_txn[3]);
+ let funding_spend_offset = if node_txn.len() == 6 { 3 } else { 1 };
+ check_spends!(node_txn[funding_spend_offset], chan_1.3);
+ assert_eq!(node_txn[funding_spend_offset].input[0].witness.clone().last().unwrap().len(), 71);
+ check_spends!(node_txn[funding_spend_offset + 1], node_txn[funding_spend_offset]);
+ check_spends!(node_txn[funding_spend_offset + 2], node_txn[funding_spend_offset]);
// We don't bother to check that B can claim the HTLC output on its commitment tx here as
// we already checked the same situation with A.
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);
+ if *nodes[1].connect_style.borrow() == ConnectStyle::FullBlockViaListen {
+ // We rely on the ability to connect a block redundantly, which isn't allowed via
+ // `chain::Listen`, so we never run the test if we randomly get assigned that
+ // connect_style.
+ return;
+ }
create_announced_chan_between_nodes(&nodes, 0, 1, channelmanager::provided_init_features(), channelmanager::provided_init_features());
route_payment(&nodes[0], &[&nodes[1]], 10000000);
// Duplicate the connect_block call since this may happen due to other listeners
// registering new transactions
- header.prev_blockhash = header.block_hash();
connect_block(&nodes[1], &Block { header, txdata: vec![node_txn[0].clone(), node_txn[2].clone()]});
}
assert!(nodes[0].node.funding_transaction_generated(&temp_channel_id, &nodes[1].node.get_our_node_id(), tx.clone()).is_ok());
get_event_msg!(nodes[0], MessageSendEvent::SendFundingCreated, nodes[1].node.get_our_node_id());
}
+
+#[test]
+fn accept_busted_but_better_fee() {
+ // If a peer sends us a fee update that is too low, but higher than our previous channel
+ // feerate, we should accept it. In the future we may want to consider closing the channel
+ // later, but for now we only accept the update.
+ let mut 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_chan_between_nodes(&nodes[0], &nodes[1], channelmanager::provided_init_features(), channelmanager::provided_init_features());
+
+ // Set nodes[1] to expect 5,000 sat/kW.
+ {
+ let mut feerate_lock = chanmon_cfgs[1].fee_estimator.sat_per_kw.lock().unwrap();
+ *feerate_lock = 5000;
+ }
+
+ // If nodes[0] increases their feerate, even if its not enough, nodes[1] should accept it.
+ {
+ let mut feerate_lock = chanmon_cfgs[0].fee_estimator.sat_per_kw.lock().unwrap();
+ *feerate_lock = 1000;
+ }
+ nodes[0].node.timer_tick_occurred();
+ check_added_monitors!(nodes[0], 1);
+
+ let events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ match events[0] {
+ MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, ref commitment_signed, .. }, .. } => {
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_fee.as_ref().unwrap());
+ commitment_signed_dance!(nodes[1], nodes[0], commitment_signed, false);
+ },
+ _ => panic!("Unexpected event"),
+ };
+
+ // If nodes[0] increases their feerate further, even if its not enough, nodes[1] should accept
+ // it.
+ {
+ let mut feerate_lock = chanmon_cfgs[0].fee_estimator.sat_per_kw.lock().unwrap();
+ *feerate_lock = 2000;
+ }
+ nodes[0].node.timer_tick_occurred();
+ check_added_monitors!(nodes[0], 1);
+
+ let events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ match events[0] {
+ MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, ref commitment_signed, .. }, .. } => {
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_fee.as_ref().unwrap());
+ commitment_signed_dance!(nodes[1], nodes[0], commitment_signed, false);
+ },
+ _ => panic!("Unexpected event"),
+ };
+
+ // However, if nodes[0] decreases their feerate, nodes[1] should reject it and close the
+ // channel.
+ {
+ let mut feerate_lock = chanmon_cfgs[0].fee_estimator.sat_per_kw.lock().unwrap();
+ *feerate_lock = 1000;
+ }
+ nodes[0].node.timer_tick_occurred();
+ check_added_monitors!(nodes[0], 1);
+
+ let events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ match events[0] {
+ MessageSendEvent::UpdateHTLCs { updates: msgs::CommitmentUpdate { ref update_fee, .. }, .. } => {
+ nodes[1].node.handle_update_fee(&nodes[0].node.get_our_node_id(), update_fee.as_ref().unwrap());
+ check_closed_event!(nodes[1], 1, ClosureReason::ProcessingError {
+ err: "Peer's feerate much too low. Actual: 1000. Our expected lower limit: 5000 (- 250)".to_owned() });
+ check_closed_broadcast!(nodes[1], true);
+ check_added_monitors!(nodes[1], 1);
+ },
+ _ => panic!("Unexpected event"),
+ };
+}
projects / rust-lightning / blobdiff