use crate::sign::EntropySource;
use crate::chain::transaction::OutPoint;
use crate::events::{ClosureReason, Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PathFailure, PaymentFailureReason, PaymentPurpose};
-use crate::ln::channel::EXPIRE_PREV_CONFIG_TICKS;
+use crate::ln::channel::{EXPIRE_PREV_CONFIG_TICKS, commit_tx_fee_msat, get_holder_selected_channel_reserve_satoshis, ANCHOR_OUTPUT_VALUE_SATOSHI};
use crate::ln::channelmanager::{BREAKDOWN_TIMEOUT, MPP_TIMEOUT_TICKS, MIN_CLTV_EXPIRY_DELTA, PaymentId, PaymentSendFailure, RecentPaymentDetails, RecipientOnionFields, HTLCForwardInfo, PendingHTLCRouting, PendingAddHTLCInfo};
-use crate::ln::features::Bolt11InvoiceFeatures;
-use crate::ln::{msgs, ChannelId, PaymentSecret, PaymentPreimage};
+use crate::ln::features::{Bolt11InvoiceFeatures, ChannelTypeFeatures};
+use crate::ln::{msgs, ChannelId, PaymentHash, PaymentSecret, PaymentPreimage};
use crate::ln::msgs::ChannelMessageHandler;
+use crate::ln::onion_utils;
use crate::ln::outbound_payment::{IDEMPOTENCY_TIMEOUT_TICKS, Retry};
use crate::routing::gossip::{EffectiveCapacity, RoutingFees};
use crate::routing::router::{get_route, Path, PaymentParameters, Route, Router, RouteHint, RouteHintHop, RouteHop, RouteParameters, find_route};
use crate::util::ser::Writeable;
use crate::util::string::UntrustedString;
+use bitcoin::hashes::Hash;
+use bitcoin::hashes::sha256::Hash as Sha256;
use bitcoin::network::constants::Network;
+use bitcoin::secp256k1::{Secp256k1, SecretKey};
use crate::prelude::*;
+use crate::ln::functional_test_utils;
use crate::ln::functional_test_utils::*;
use crate::routing::gossip::NodeId;
+
#[cfg(feature = "std")]
use {
crate::util::time::tests::SinceEpoch,
- std::time::{SystemTime, Instant, Duration}
+ std::time::{SystemTime, Instant, Duration},
};
#[test]
let amt_msat = 1_000_000;
let max_total_routing_fee_msat = 50_000;
let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
- .with_bolt11_features(nodes[3].node.invoice_features()).unwrap();
+ .with_bolt11_features(nodes[3].node.bolt11_invoice_features()).unwrap();
let (mut route, payment_hash, payment_preimage, payment_secret) = get_route_and_payment_hash!(
nodes[0], nodes[3], payment_params, amt_msat, Some(max_total_routing_fee_msat));
let path = route.paths[0].clone();
// Add the HTLC along the first hop.
let fail_path_msgs_1 = remove_first_msg_event_to_node(&nodes[2].node.get_our_node_id(), &mut events);
- let (update_add, commitment_signed) = match fail_path_msgs_1 {
- MessageSendEvent::UpdateHTLCs { node_id: _, updates: msgs::CommitmentUpdate { ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs, ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed } } => {
- assert_eq!(update_add_htlcs.len(), 1);
- assert!(update_fail_htlcs.is_empty());
- assert!(update_fulfill_htlcs.is_empty());
- assert!(update_fail_malformed_htlcs.is_empty());
- assert!(update_fee.is_none());
- (update_add_htlcs[0].clone(), commitment_signed.clone())
- },
- _ => panic!("Unexpected event"),
- };
- nodes[2].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &update_add);
- commitment_signed_dance!(nodes[2], nodes[0], commitment_signed, false);
+ let send_event = SendEvent::from_event(fail_path_msgs_1);
+ nodes[2].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]);
+ commitment_signed_dance!(nodes[2], nodes[0], &send_event.commitment_msg, false);
// Attempt to forward the payment and complete the 2nd path's failure.
expect_pending_htlcs_forwardable!(&nodes[2]);
// Check the remaining max total routing fee for the second attempt is 50_000 - 1_000 msat fee
// used by the first path
route_params.max_total_routing_fee_msat = Some(max_total_routing_fee_msat - 1_000);
+ route.route_params = Some(route_params.clone());
nodes[0].router.expect_find_route(route_params, Ok(route));
nodes[0].node.process_pending_htlc_forwards();
check_added_monitors!(nodes[0], 1);
let max_total_routing_fee_msat = Some(1_000_000);
let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
- .with_bolt11_features(nodes[3].node.invoice_features()).unwrap();
+ .with_bolt11_features(nodes[3].node.bolt11_invoice_features()).unwrap();
let (mut route, payment_hash, payment_preimage, payment_secret) = get_route_and_payment_hash!(
nodes[0], nodes[3], payment_params, amt_msat, max_total_routing_fee_msat);
// Add the HTLC along the first hop.
let fail_path_msgs_1 = remove_first_msg_event_to_node(&nodes[2].node.get_our_node_id(), &mut events);
- let (update_add, commitment_signed) = match fail_path_msgs_1 {
- MessageSendEvent::UpdateHTLCs {
- node_id: _,
- updates: msgs::CommitmentUpdate {
- ref update_add_htlcs, ref update_fulfill_htlcs, ref update_fail_htlcs,
- ref update_fail_malformed_htlcs, ref update_fee, ref commitment_signed
- }
- } => {
- assert_eq!(update_add_htlcs.len(), 1);
- assert!(update_fail_htlcs.is_empty());
- assert!(update_fulfill_htlcs.is_empty());
- assert!(update_fail_malformed_htlcs.is_empty());
- assert!(update_fee.is_none());
- (update_add_htlcs[0].clone(), commitment_signed.clone())
- },
- _ => panic!("Unexpected event"),
- };
- nodes[2].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &update_add);
- commitment_signed_dance!(nodes[2], nodes[0], commitment_signed, false);
+ let send_event = SendEvent::from_event(fail_path_msgs_1);
+ nodes[2].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &send_event.msgs[0]);
+ commitment_signed_dance!(nodes[2], nodes[0], &send_event.commitment_msg, false);
// Attempt to forward the payment and complete the 2nd path's failure.
expect_pending_htlcs_forwardable!(&nodes[2]);
route.paths.remove(0);
route_params.final_value_msat -= first_path_value;
route_params.payment_params.previously_failed_channels.push(chan_4_update.contents.short_channel_id);
-
// Check the remaining max total routing fee for the second attempt accounts only for 1_000 msat
// base fee, but not for overpaid value of the first try.
route_params.max_total_routing_fee_msat.as_mut().map(|m| *m -= 1000);
+
+ route.route_params = Some(route_params.clone());
nodes[0].router.expect_find_route(route_params, Ok(route));
nodes[0].node.process_pending_htlc_forwards();
// Can't use claim_payment_along_route as it doesn't support overpayment, so we break out the
// individual steps here.
+ nodes[3].node.claim_funds(payment_preimage);
let extra_fees = vec![0, total_overpaid_amount];
- let expected_total_fee_msat = do_claim_payment_along_route_with_extra_penultimate_hop_fees(
- &nodes[0], &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]], &extra_fees[..], false,
- payment_preimage);
+ let expected_route = &[&[&nodes[1], &nodes[3]][..], &[&nodes[2], &nodes[3]][..]];
+ let args = ClaimAlongRouteArgs::new(&nodes[0], &expected_route[..], payment_preimage)
+ .with_expected_min_htlc_overpay(extra_fees);
+ let expected_total_fee_msat = pass_claimed_payment_along_route(args);
expect_payment_sent!(&nodes[0], payment_preimage, Some(expected_total_fee_msat));
}
let route_params = RouteParameters::from_payment_params_and_value(
PaymentParameters::for_keysend(payee_pubkey, 40, false), 10000);
- let network_graph = nodes[0].network_graph.clone();
+ let network_graph = nodes[0].network_graph;
let channels = nodes[0].node.list_usable_channels();
let first_hops = channels.iter().collect::<Vec<_>>();
let first_hops = if public_node { None } else { Some(first_hops.as_slice()) };
create_announced_chan_between_nodes(&nodes, 0, 2);
create_announced_chan_between_nodes(&nodes, 1, 3);
create_announced_chan_between_nodes(&nodes, 2, 3);
- let network_graph = nodes[0].network_graph.clone();
+ let network_graph = nodes[0].network_graph;
let payer_pubkey = nodes[0].node.get_our_node_id();
let payee_pubkey = nodes[3].node.get_our_node_id();
let nodes_0_deserialized;
let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
- let chan_id = create_announced_chan_between_nodes(&nodes, 0, 1).2;
+ let (_, _, chan_id, funding_tx) = create_announced_chan_between_nodes(&nodes, 0, 1);
let (_, _, chan_id_2, _) = create_announced_chan_between_nodes(&nodes, 1, 2);
// Serialize the ChannelManager prior to sending payments
let bs_reestablish = get_chan_reestablish_msgs!(nodes[1], nodes[0]).pop().unwrap();
nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish);
let as_err = nodes[0].node.get_and_clear_pending_msg_events();
- assert_eq!(as_err.len(), 1);
- match as_err[0] {
+ assert_eq!(as_err.len(), 2);
+ match as_err[1] {
MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
assert_eq!(node_id, nodes[1].node.get_our_node_id());
nodes[1].node.handle_error(&nodes[0].node.get_our_node_id(), msg);
assert_eq!(nodes[0].node.list_usable_channels().len(), 1);
mine_transaction(&nodes[1], &as_commitment_tx);
- let bs_htlc_claim_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
- assert_eq!(bs_htlc_claim_txn.len(), 1);
- check_spends!(bs_htlc_claim_txn[0], as_commitment_tx);
+ let bs_htlc_claim_txn = {
+ let mut txn = nodes[1].tx_broadcaster.unique_txn_broadcast();
+ assert_eq!(txn.len(), 2);
+ check_spends!(txn[0], funding_tx);
+ check_spends!(txn[1], as_commitment_tx);
+ txn.pop().unwrap()
+ };
if !confirm_before_reload {
mine_transaction(&nodes[0], &as_commitment_tx);
+ let txn = nodes[0].tx_broadcaster.unique_txn_broadcast();
+ assert_eq!(txn.len(), 1);
+ assert_eq!(txn[0].txid(), as_commitment_tx.txid());
}
- mine_transaction(&nodes[0], &bs_htlc_claim_txn[0]);
+ mine_transaction(&nodes[0], &bs_htlc_claim_txn);
expect_payment_sent(&nodes[0], payment_preimage_1, None, true, false);
connect_blocks(&nodes[0], TEST_FINAL_CLTV*4 + 20);
let (first_htlc_timeout_tx, second_htlc_timeout_tx) = {
};
check_spends!(first_htlc_timeout_tx, as_commitment_tx);
check_spends!(second_htlc_timeout_tx, as_commitment_tx);
- if first_htlc_timeout_tx.input[0].previous_output == bs_htlc_claim_txn[0].input[0].previous_output {
+ if first_htlc_timeout_tx.input[0].previous_output == bs_htlc_claim_txn.input[0].previous_output {
confirm_transaction(&nodes[0], &second_htlc_timeout_tx);
} else {
confirm_transaction(&nodes[0], &first_htlc_timeout_tx);
let bs_reestablish = get_chan_reestablish_msgs!(nodes[1], nodes[0]).pop().unwrap();
nodes[0].node.handle_channel_reestablish(&nodes[1].node.get_our_node_id(), &bs_reestablish);
let as_err = nodes[0].node.get_and_clear_pending_msg_events();
- assert_eq!(as_err.len(), 1);
+ assert_eq!(as_err.len(), 2);
let bs_commitment_tx;
- match as_err[0] {
+ match as_err[1] {
MessageSendEvent::HandleError { node_id, action: msgs::ErrorAction::SendErrorMessage { ref msg } } => {
assert_eq!(node_id, nodes[1].node.get_our_node_id());
nodes[1].node.handle_error(&nodes[0].node.get_our_node_id(), msg);
// the HTLC-Timeout transaction beyond 1 conf). For dust HTLCs, the HTLC is considered resolved
// after the commitment transaction, so always connect the commitment transaction.
mine_transaction(&nodes[0], &bs_commitment_tx[0]);
+ if nodes[0].connect_style.borrow().updates_best_block_first() {
+ let _ = nodes[0].tx_broadcaster.txn_broadcast();
+ }
mine_transaction(&nodes[1], &bs_commitment_tx[0]);
if !use_dust {
connect_blocks(&nodes[0], TEST_FINAL_CLTV + (MIN_CLTV_EXPIRY_DELTA as u32));
connect_blocks(&nodes[1], TEST_FINAL_CLTV + (MIN_CLTV_EXPIRY_DELTA as u32));
let as_htlc_timeout = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
- check_spends!(as_htlc_timeout[0], bs_commitment_tx[0]);
assert_eq!(as_htlc_timeout.len(), 1);
+ check_spends!(as_htlc_timeout[0], bs_commitment_tx[0]);
mine_transaction(&nodes[0], &as_htlc_timeout[0]);
- // nodes[0] may rebroadcast (or RBF-bump) its HTLC-Timeout, so wipe the announced set.
- nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().clear();
mine_transaction(&nodes[1], &as_htlc_timeout[0]);
}
+ if nodes[0].connect_style.borrow().updates_best_block_first() {
+ let _ = nodes[0].tx_broadcaster.txn_broadcast();
+ }
// Create a new channel on which to retry the payment before we fail the payment via the
// HTLC-Timeout transaction. This avoids ChannelManager timing out the payment due to us
// Connect blocks until the CLTV timeout is up so that we get an HTLC-Timeout transaction
connect_blocks(&nodes[0], TEST_FINAL_CLTV + LATENCY_GRACE_PERIOD_BLOCKS + 1);
- let node_txn = nodes[0].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
- assert_eq!(node_txn.len(), 3);
- assert_eq!(node_txn[0].txid(), node_txn[1].txid());
- check_spends!(node_txn[1], funding_tx);
- check_spends!(node_txn[2], node_txn[1]);
- let timeout_txn = vec![node_txn[2].clone()];
+ let (commitment_tx, htlc_timeout_tx) = {
+ let mut txn = nodes[0].tx_broadcaster.unique_txn_broadcast();
+ assert_eq!(txn.len(), 2);
+ check_spends!(txn[0], funding_tx);
+ check_spends!(txn[1], txn[0]);
+ (txn.remove(0), txn.remove(0))
+ };
nodes[1].node.claim_funds(payment_preimage);
check_added_monitors!(nodes[1], 1);
expect_payment_claimed!(nodes[1], payment_hash, 10_000_000);
- connect_block(&nodes[1], &create_dummy_block(nodes[1].best_block_hash(), 42, vec![node_txn[1].clone()]));
+ mine_transaction(&nodes[1], &commitment_tx);
check_closed_broadcast!(nodes[1], true);
check_added_monitors!(nodes[1], 1);
check_closed_event!(nodes[1], 1, ClosureReason::CommitmentTxConfirmed, [nodes[0].node.get_our_node_id()], 100000);
- let claim_txn = nodes[1].tx_broadcaster.txn_broadcasted.lock().unwrap().split_off(0);
- assert_eq!(claim_txn.len(), 1);
- check_spends!(claim_txn[0], node_txn[1]);
+ let htlc_success_tx = {
+ let mut txn = nodes[1].tx_broadcaster.txn_broadcast();
+ assert_eq!(txn.len(), 1);
+ check_spends!(txn[0], commitment_tx);
+ txn.pop().unwrap()
+ };
- connect_block(&nodes[0], &create_dummy_block(nodes[0].best_block_hash(), 42, vec![node_txn[1].clone()]));
+ mine_transaction(&nodes[0], &commitment_tx);
if confirm_commitment_tx {
connect_blocks(&nodes[0], BREAKDOWN_TIMEOUT as u32 - 1);
}
- let claim_block = create_dummy_block(nodes[0].best_block_hash(), 42, if payment_timeout { timeout_txn } else { vec![claim_txn[0].clone()] });
+ let claim_block = create_dummy_block(nodes[0].best_block_hash(), 42, if payment_timeout { vec![htlc_timeout_tx] } else { vec![htlc_success_tx] });
if payment_timeout {
assert!(confirm_commitment_tx); // Otherwise we're spending below our CSV!
let (payment_hash, payment_secret) = nodes[1].node.create_inbound_payment(Some(amt_msat), expiry_secs, None).unwrap();
let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV)
- .with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
+ .with_bolt11_features(nodes[1].node.bolt11_invoice_features()).unwrap();
let scorer = test_utils::TestScorer::new();
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
let random_seed_bytes = keys_manager.get_secure_random_bytes();
create_announced_chan_between_nodes(&nodes, 0, 1);
create_announced_chan_between_nodes(&nodes, 1, 2);
- let (route, _, _, _) = get_route_and_payment_hash!(&nodes[0], nodes[2], 100_000);
+ let recv_value = 100_000;
+ let (route, _, _, _) = get_route_and_payment_hash!(&nodes[0], nodes[2], recv_value);
- let (payment_hash, payment_id) = nodes[0].node.send_probe(route.paths[0].clone()).unwrap();
+ let res = nodes[0].node.send_probe(route.paths[0].clone()).unwrap();
- // node[0] -- update_add_htlcs -> node[1]
- check_added_monitors!(nodes[0], 1);
- let updates = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
- let probe_event = SendEvent::from_commitment_update(nodes[1].node.get_our_node_id(), updates);
- nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &probe_event.msgs[0]);
- check_added_monitors!(nodes[1], 0);
- commitment_signed_dance!(nodes[1], nodes[0], probe_event.commitment_msg, false);
- expect_pending_htlcs_forwardable!(nodes[1]);
+ let expected_route: &[&[&Node]] = &[&[&nodes[1], &nodes[2]]];
- // node[1] -- update_add_htlcs -> node[2]
- check_added_monitors!(nodes[1], 1);
- let updates = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
- let probe_event = SendEvent::from_commitment_update(nodes[1].node.get_our_node_id(), updates);
- nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &probe_event.msgs[0]);
- check_added_monitors!(nodes[2], 0);
- commitment_signed_dance!(nodes[2], nodes[1], probe_event.commitment_msg, true, true);
+ send_probe_along_route(&nodes[0], expected_route);
- // node[1] <- update_fail_htlcs -- node[2]
- let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
- nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
- check_added_monitors!(nodes[1], 0);
- commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, true);
+ expect_probe_successful_events(&nodes[0], vec![res]);
- // node[0] <- update_fail_htlcs -- node[1]
- let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
- nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
- check_added_monitors!(nodes[0], 0);
- commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false);
-
- let mut events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events.drain(..).next().unwrap() {
- crate::events::Event::ProbeSuccessful { payment_id: ev_pid, payment_hash: ev_ph, .. } => {
- assert_eq!(payment_id, ev_pid);
- assert_eq!(payment_hash, ev_ph);
- },
- _ => panic!(),
- };
assert!(!nodes[0].node.has_pending_payments());
}
assert!(!nodes[0].node.has_pending_payments());
}
+#[test]
+fn preflight_probes_yield_event_skip_private_hop() {
+ let chanmon_cfgs = create_chanmon_cfgs(5);
+ let node_cfgs = create_node_cfgs(5, &chanmon_cfgs);
+
+ // We alleviate the HTLC max-in-flight limit, as otherwise we'd always be limited through that.
+ let mut no_htlc_limit_config = test_default_channel_config();
+ no_htlc_limit_config.channel_handshake_config.max_inbound_htlc_value_in_flight_percent_of_channel = 100;
+
+ let user_configs = std::iter::repeat(no_htlc_limit_config).take(5).map(|c| Some(c)).collect::<Vec<Option<UserConfig>>>();
+ let node_chanmgrs = create_node_chanmgrs(5, &node_cfgs, &user_configs);
+ let nodes = create_network(5, &node_cfgs, &node_chanmgrs);
+
+ // Setup channel topology:
+ // N0 -(1M:0)- N1 -(1M:0)- N2 -(70k:0)- N3 -(50k:0)- N4
+
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+ create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0);
+ create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 70_000, 0);
+ create_unannounced_chan_between_nodes_with_value(&nodes, 3, 4, 50_000, 0);
+
+ let mut invoice_features = Bolt11InvoiceFeatures::empty();
+ invoice_features.set_basic_mpp_optional();
+
+ let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
+ .with_bolt11_features(invoice_features).unwrap();
+
+ let recv_value = 50_000_000;
+ let route_params = RouteParameters::from_payment_params_and_value(payment_params, recv_value);
+ let res = nodes[0].node.send_preflight_probes(route_params, None).unwrap();
+
+ let expected_route: &[&[&Node]] = &[&[&nodes[1], &nodes[2], &nodes[3]]];
+
+ assert_eq!(res.len(), expected_route.len());
+
+ send_probe_along_route(&nodes[0], expected_route);
+
+ expect_probe_successful_events(&nodes[0], res.clone());
+
+ assert!(!nodes[0].node.has_pending_payments());
+}
+
+#[test]
+fn preflight_probes_yield_event() {
+ let chanmon_cfgs = create_chanmon_cfgs(4);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+
+ // We alleviate the HTLC max-in-flight limit, as otherwise we'd always be limited through that.
+ let mut no_htlc_limit_config = test_default_channel_config();
+ no_htlc_limit_config.channel_handshake_config.max_inbound_htlc_value_in_flight_percent_of_channel = 100;
+
+ let user_configs = std::iter::repeat(no_htlc_limit_config).take(4).map(|c| Some(c)).collect::<Vec<Option<UserConfig>>>();
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &user_configs);
+ let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+
+ // Setup channel topology:
+ // (1M:0)- N1 -(30k:0)
+ // / \
+ // N0 N4
+ // \ /
+ // (1M:0)- N2 -(70k:0)
+ //
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 2, 1_000_000, 0);
+ create_announced_chan_between_nodes_with_value(&nodes, 1, 3, 30_000, 0);
+ create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 70_000, 0);
+
+ let mut invoice_features = Bolt11InvoiceFeatures::empty();
+ invoice_features.set_basic_mpp_optional();
+
+ let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
+ .with_bolt11_features(invoice_features).unwrap();
+
+ let recv_value = 50_000_000;
+ let route_params = RouteParameters::from_payment_params_and_value(payment_params, recv_value);
+ let res = nodes[0].node.send_preflight_probes(route_params, None).unwrap();
+
+ let expected_route: &[&[&Node]] = &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]];
+
+ assert_eq!(res.len(), expected_route.len());
+
+ send_probe_along_route(&nodes[0], expected_route);
+
+ expect_probe_successful_events(&nodes[0], res.clone());
+
+ assert!(!nodes[0].node.has_pending_payments());
+}
+
#[test]
fn preflight_probes_yield_event_and_skip() {
let chanmon_cfgs = create_chanmon_cfgs(5);
// \ /
// (70k:0)- N3 -(1M:0)
//
- let first_chan_update = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100_000, 0).0;
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100_000, 0);
create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 30_000, 0);
create_announced_chan_between_nodes_with_value(&nodes, 1, 3, 70_000, 0);
create_announced_chan_between_nodes_with_value(&nodes, 2, 4, 1_000_000, 0);
let mut invoice_features = Bolt11InvoiceFeatures::empty();
invoice_features.set_basic_mpp_optional();
- let mut payment_params = PaymentParameters::from_node_id(nodes[4].node.get_our_node_id(), TEST_FINAL_CLTV)
+ let payment_params = PaymentParameters::from_node_id(nodes[4].node.get_our_node_id(), TEST_FINAL_CLTV)
.with_bolt11_features(invoice_features).unwrap();
- let route_params = RouteParameters::from_payment_params_and_value(payment_params, 80_000_000);
+ let recv_value = 80_000_000;
+ let route_params = RouteParameters::from_payment_params_and_value(payment_params, recv_value);
let res = nodes[0].node.send_preflight_probes(route_params, None).unwrap();
+ let expected_route : &[&[&Node]] = &[&[&nodes[1], &nodes[2], &nodes[4]]];
+
// We check that only one probe was sent, the other one was skipped due to limited liquidity.
assert_eq!(res.len(), 1);
- let log_msg = format!("Skipped sending payment probe to avoid putting channel {} under the liquidity limit.",
- first_chan_update.contents.short_channel_id);
- node_cfgs[0].logger.assert_log_contains("lightning::ln::channelmanager", &log_msg, 1);
- let (payment_hash, payment_id) = res.first().unwrap();
+ send_probe_along_route(&nodes[0], expected_route);
- // node[0] -- update_add_htlcs -> node[1]
- check_added_monitors!(nodes[0], 1);
- let probe_event = SendEvent::from_node(&nodes[0]);
- nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &probe_event.msgs[0]);
- check_added_monitors!(nodes[1], 0);
- commitment_signed_dance!(nodes[1], nodes[0], probe_event.commitment_msg, false);
- expect_pending_htlcs_forwardable!(nodes[1]);
-
- // node[1] -- update_add_htlcs -> node[2]
- check_added_monitors!(nodes[1], 1);
- let probe_event = SendEvent::from_node(&nodes[1]);
- nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &probe_event.msgs[0]);
- check_added_monitors!(nodes[2], 0);
- commitment_signed_dance!(nodes[2], nodes[1], probe_event.commitment_msg, false);
- expect_pending_htlcs_forwardable!(nodes[2]);
-
- // node[2] -- update_add_htlcs -> node[4]
- check_added_monitors!(nodes[2], 1);
- let probe_event = SendEvent::from_node(&nodes[2]);
- nodes[4].node.handle_update_add_htlc(&nodes[2].node.get_our_node_id(), &probe_event.msgs[0]);
- check_added_monitors!(nodes[4], 0);
- commitment_signed_dance!(nodes[4], nodes[2], probe_event.commitment_msg, true, true);
-
- // node[2] <- update_fail_htlcs -- node[4]
- let updates = get_htlc_update_msgs!(nodes[4], nodes[2].node.get_our_node_id());
- nodes[2].node.handle_update_fail_htlc(&nodes[4].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
- check_added_monitors!(nodes[2], 0);
- commitment_signed_dance!(nodes[2], nodes[4], updates.commitment_signed, true);
-
- // node[1] <- update_fail_htlcs -- node[2]
- let updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
- nodes[1].node.handle_update_fail_htlc(&nodes[2].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
- check_added_monitors!(nodes[1], 0);
- commitment_signed_dance!(nodes[1], nodes[2], updates.commitment_signed, true);
-
- // node[0] <- update_fail_htlcs -- node[1]
- let updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
- nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
- check_added_monitors!(nodes[0], 0);
- commitment_signed_dance!(nodes[0], nodes[1], updates.commitment_signed, false);
+ expect_probe_successful_events(&nodes[0], res.clone());
- let mut events = nodes[0].node.get_and_clear_pending_events();
- assert_eq!(events.len(), 1);
- match events.drain(..).next().unwrap() {
- crate::events::Event::ProbeSuccessful { payment_id: ev_pid, payment_hash: ev_ph, .. } => {
- assert_eq!(*payment_id, ev_pid);
- assert_eq!(*payment_hash, ev_ph);
- },
- _ => panic!(),
- };
assert!(!nodes[0].node.has_pending_payments());
}
htlc_maximum_msat: None,
}])
]).unwrap()
- .with_bolt11_features(nodes[2].node.invoice_features()).unwrap();
- let route_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat,);
- let route = get_route(&nodes[0].node.get_our_node_id(), &route_params,
- &nodes[0].network_graph.read_only(), None, nodes[0].logger, &scorer, &Default::default(),
- &random_seed_bytes).unwrap();
+ .with_bolt11_features(nodes[2].node.bolt11_invoice_features()).unwrap();
+ let route_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat);
+ let route = get_route(
+ &nodes[0].node.get_our_node_id(), &route_params, &nodes[0].network_graph.read_only(), None,
+ nodes[0].logger, &scorer, &Default::default(), &random_seed_bytes
+ ).unwrap();
let (payment_hash, payment_secret) = nodes[2].node.create_inbound_payment(Some(amt_msat), 60 * 60, None).unwrap();
nodes[0].node.send_payment_with_route(&route, payment_hash,
// Check for unknown channel id error.
let unknown_chan_id_err = nodes[1].node.forward_intercepted_htlc(intercept_id, &ChannelId::from_bytes([42; 32]), nodes[2].node.get_our_node_id(), expected_outbound_amount_msat).unwrap_err();
assert_eq!(unknown_chan_id_err , APIError::ChannelUnavailable {
- err: format!("Channel with id {} not found for the passed counterparty node_id {}.",
+ err: format!("Channel with id {} not found for the passed counterparty node_id {}",
log_bytes!([42; 32]), nodes[2].node.get_our_node_id()) });
if test == InterceptTest::Fail {
expect_payment_failed_conditions(&nodes[0], payment_hash, false, fail_conditions);
} else if test == InterceptTest::Forward {
// Check that we'll fail as expected when sending to a channel that isn't in `ChannelReady` yet.
- let temp_chan_id = nodes[1].node.create_channel(nodes[2].node.get_our_node_id(), 100_000, 0, 42, None).unwrap();
+ let temp_chan_id = nodes[1].node.create_channel(nodes[2].node.get_our_node_id(), 100_000, 0, 42, None, None).unwrap();
let unusable_chan_err = nodes[1].node.forward_intercepted_htlc(intercept_id, &temp_chan_id, nodes[2].node.get_our_node_id(), expected_outbound_amount_msat).unwrap_err();
assert_eq!(unusable_chan_err , APIError::ChannelUnavailable {
err: format!("Channel with id {} for the passed counterparty node_id {} is still opening.",
}
let payment_params = PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV)
.with_route_hints(route_hints).unwrap()
- .with_bolt11_features(nodes[2].node.invoice_features()).unwrap();
+ .with_bolt11_features(nodes[2].node.bolt11_invoice_features()).unwrap();
let route_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat);
let (payment_hash, payment_secret) = nodes[2].node.create_inbound_payment(Some(amt_msat), 60 * 60, None).unwrap();
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::secret_only(payment_secret),
assert_eq!(skimmed_fee_msat * num_mpp_parts as u64, counterparty_skimmed_fee_msat);
assert_eq!(nodes[2].node.get_our_node_id(), receiver_node_id.unwrap());
match purpose {
- crate::events::PaymentPurpose::InvoicePayment { payment_preimage: ev_payment_preimage,
- payment_secret: ev_payment_secret, .. } =>
- {
+ crate::events::PaymentPurpose::Bolt11InvoicePayment {
+ payment_preimage: ev_payment_preimage,
+ payment_secret: ev_payment_secret,
+ ..
+ } => {
assert_eq!(payment_preimage, ev_payment_preimage.unwrap());
assert_eq!(payment_secret, *ev_payment_secret);
},
let mut expected_paths = Vec::new();
for _ in 0..num_mpp_parts { expected_paths_vecs.push(vec!(&nodes[1], &nodes[2])); }
for i in 0..num_mpp_parts { expected_paths.push(&expected_paths_vecs[i][..]); }
- let total_fee_msat = do_claim_payment_along_route_with_extra_penultimate_hop_fees(
- &nodes[0], &expected_paths[..], &vec![skimmed_fee_msat as u32; num_mpp_parts][..], false,
- payment_preimage);
+ expected_paths[0].last().unwrap().node.claim_funds(payment_preimage);
+ let args = ClaimAlongRouteArgs::new(&nodes[0], &expected_paths[..], payment_preimage)
+ .with_expected_extra_fees(vec![skimmed_fee_msat as u32; num_mpp_parts]);
+ let total_fee_msat = pass_claimed_payment_along_route(args);
// The sender doesn't know that the penultimate hop took an extra fee.
expect_payment_sent(&nodes[0], payment_preimage,
Some(Some(total_fee_msat - skimmed_fee_msat * num_mpp_parts as u64)), true, true);
let mut msg_events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(msg_events.len(), 0);
} else if test == AutoRetry::FailTimeout {
- #[cfg(not(feature = "no-std"))] {
+ #[cfg(feature = "std")] {
// Ensure ChannelManager will not retry a payment if it times out due to Retry::Timeout.
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::secret_only(payment_secret),
PaymentId(payment_hash.0), route_params, Retry::Timeout(Duration::from_secs(60))).unwrap();
let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV)
.with_expiry_time(payment_expiry_secs as u64)
.with_bolt11_features(invoice_features).unwrap();
+
+ // Configure the initial send path
let mut route_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat);
route_params.max_total_routing_fee_msat = None;
- // Configure the initial send, retry1 and retry2's paths.
let send_route = Route {
paths: vec![
Path { hops: vec![RouteHop {
],
route_params: Some(route_params.clone()),
};
+ nodes[0].router.expect_find_route(route_params.clone(), Ok(send_route));
+
+ // Configure the retry1 paths
+ let mut payment_params = route_params.payment_params.clone();
+ payment_params.previously_failed_channels.push(chan_2_id);
+ let mut retry_1_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat / 2);
+ retry_1_params.max_total_routing_fee_msat = None;
+
let retry_1_route = Route {
paths: vec![
Path { hops: vec![RouteHop {
maybe_announced_channel: true,
}], blinded_tail: None },
],
- route_params: Some(route_params.clone()),
+ route_params: Some(retry_1_params.clone()),
};
+ nodes[0].router.expect_find_route(retry_1_params.clone(), Ok(retry_1_route));
+
+ // Configure the retry2 path
+ let mut payment_params = retry_1_params.payment_params.clone();
+ payment_params.previously_failed_channels.push(chan_3_id);
+ let mut retry_2_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat / 4);
+ retry_2_params.max_total_routing_fee_msat = None;
+
let retry_2_route = Route {
paths: vec![
Path { hops: vec![RouteHop {
maybe_announced_channel: true,
}], blinded_tail: None },
],
- route_params: Some(route_params.clone()),
+ route_params: Some(retry_2_params.clone()),
};
- nodes[0].router.expect_find_route(route_params.clone(), Ok(send_route));
- let mut payment_params = route_params.payment_params.clone();
- payment_params.previously_failed_channels.push(chan_2_id);
-
- let mut retry_1_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat / 2);
- retry_1_params.max_total_routing_fee_msat = None;
- nodes[0].router.expect_find_route(retry_1_params, Ok(retry_1_route));
-
- let mut payment_params = route_params.payment_params.clone();
- payment_params.previously_failed_channels.push(chan_3_id);
- let mut retry_2_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat / 4);
- retry_2_params.max_total_routing_fee_msat = None;
nodes[0].router.expect_find_route(retry_2_params, Ok(retry_2_route));
// Send a payment that will partially fail on send, then partially fail on retry, then succeed.
let mut pay_params = route.route_params.clone().unwrap().payment_params;
pay_params.previously_failed_channels.push(chans[1].short_channel_id.unwrap());
- // Note that the second request here requests the amount we originally failed to send,
- // not the amount remaining on the full payment, which should be changed.
- let mut retry_params = RouteParameters::from_payment_params_and_value(pay_params, 100_000_001);
+ let mut retry_params = RouteParameters::from_payment_params_and_value(pay_params, 100_000_000);
retry_params.max_total_routing_fee_msat = None;
+ route.route_params = Some(retry_params.clone());
nodes[0].router.expect_find_route(retry_params, Ok(route.clone()));
{
maybe_announced_channel: true,
}], blinded_tail: None },
],
- route_params: Some(RouteParameters::from_payment_params_and_value(
- PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV),
- 100_000_001)),
+ route_params: Some(route_params.clone()),
};
nodes[0].router.expect_find_route(route_params.clone(), Ok(route.clone()));
// On retry, split the payment across both channels.
route.paths[1].hops[0].fee_msat = 50_000_001;
let mut pay_params = route_params.payment_params.clone();
pay_params.previously_failed_channels.push(chans[0].short_channel_id.unwrap());
- nodes[0].router.expect_find_route(
- RouteParameters::from_payment_params_and_value(pay_params, amt_msat),
- Ok(route.clone()));
+ let retry_params = RouteParameters::from_payment_params_and_value(pay_params, amt_msat);
+ route.route_params = Some(retry_params.clone());
+ nodes[0].router.expect_find_route(retry_params, Ok(route.clone()));
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::secret_only(payment_secret),
PaymentId(payment_hash.0), route_params, Retry::Attempts(1)).unwrap();
maybe_announced_channel: true,
}], blinded_tail: None }
],
- route_params: Some(RouteParameters::from_payment_params_and_value(
- PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV),
- 100_000_000)),
+ route_params: Some(route_params.clone()),
};
route.route_params.as_mut().unwrap().max_total_routing_fee_msat = None;
nodes[0].router.expect_find_route(route_params.clone(), Ok(route.clone()));
route.paths[0].hops[1].fee_msat = amt_msat;
let mut retry_params = RouteParameters::from_payment_params_and_value(second_payment_params, amt_msat);
retry_params.max_total_routing_fee_msat = None;
+ route.route_params = Some(retry_params.clone());
nodes[0].router.expect_find_route(retry_params, Ok(route.clone()));
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::secret_only(payment_secret),
maybe_announced_channel: true,
}], blinded_tail: None }
],
- route_params: Some(RouteParameters::from_payment_params_and_value(
- PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV),
- 100_000_000)),
+ route_params: Some(route_params.clone()),
};
- route.route_params.as_mut().unwrap().max_total_routing_fee_msat = None;
+
nodes[0].router.expect_find_route(route_params.clone(), Ok(route.clone()));
+
let mut second_payment_params = route_params.payment_params.clone();
second_payment_params.previously_failed_channels = vec![chan_2_scid];
// On retry, we'll only be asked for one path (or 100k sats)
route.paths.remove(0);
let mut retry_params = RouteParameters::from_payment_params_and_value(second_payment_params, amt_msat / 2);
retry_params.max_total_routing_fee_msat = None;
+ route.route_params = Some(retry_params.clone());
nodes[0].router.expect_find_route(retry_params, Ok(route.clone()));
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::secret_only(payment_secret),
maybe_announced_channel: true,
}], blinded_tail: None }
],
- route_params: Some(RouteParameters {
- payment_params: PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV),
- final_value_msat: amt_msat - amt_msat / 1000,
- max_total_routing_fee_msat: Some(500_000),
- }),
+ route_params: Some(route_params.clone()),
};
nodes[0].router.expect_find_route(route_params.clone(), Ok(route.clone()));
// from here on out, the retry `RouteParameters` amount will be amt/1000
route_params.final_value_msat /= 1000;
+ route.route_params = Some(route_params.clone());
route.paths.pop();
let end_time = Instant::now() + Duration::from_secs(1);
// We really want std::thread::scope, but its not stable until 1.63. Until then, we get unsafe.
let node_ref = NodePtr::from_node(&nodes[0]);
move || {
+ let _ = &node_ref;
let node_a = unsafe { &*node_ref.0 };
while Instant::now() < end_time {
node_a.node.get_and_clear_pending_events(); // wipe the PendingHTLCsForwardable
new_route_params.payment_params.previously_failed_channels = previously_failed_channels.clone();
new_route_params.max_total_routing_fee_msat.as_mut().map(|m| *m -= 100_000);
route.paths[0].hops[1].short_channel_id += 1;
+ route.route_params = Some(new_route_params.clone());
nodes[0].router.expect_find_route(new_route_params, Ok(route.clone()));
let bs_fail_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
create_announced_chan_between_nodes(&nodes, 2, 3);
let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash!(nodes[3]);
- let mut route_params = RouteParameters::from_payment_params_and_value(
- PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
- .with_bolt11_features(nodes[1].node.invoice_features()).unwrap(),
- 10_000_000);
+ let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
+ .with_bolt11_features(nodes[1].node.bolt11_invoice_features()).unwrap();
+ let mut route_params = RouteParameters::from_payment_params_and_value(payment_params, 10_000_000);
let mut route = nodes[0].router.find_route(&nodes[0].node.get_our_node_id(), &route_params,
None, nodes[0].node.compute_inflight_htlcs()).unwrap();
// Make sure the route is ordered as the B->D path before C->D
match (known_tlvs, even_tlvs) {
(true, _) => {
nodes[1].node.claim_funds_with_known_custom_tlvs(our_payment_preimage);
- let expected_total_fee_msat = pass_claimed_payment_along_route(&nodes[0], &[&[&nodes[1]]], &[0; 1], false, our_payment_preimage);
+ let expected_total_fee_msat = pass_claimed_payment_along_route(ClaimAlongRouteArgs::new(&nodes[0], &[&[&nodes[1]]], our_payment_preimage));
expect_payment_sent!(&nodes[0], our_payment_preimage, Some(expected_total_fee_msat));
},
(false, false) => {
send_payment(&nodes[2], &vec!(&nodes[1])[..], 1_500_000);
let amt_msat = 1_000_000;
- let (route, payment_hash, payment_preimage, payment_secret) =
+ let (mut route, payment_hash, payment_preimage, payment_secret) =
get_route_and_payment_hash!(nodes[0], nodes[2], amt_msat);
// Initiate the payment
// Retry the payment and make sure it succeeds
route_params.payment_params.previously_failed_channels.push(chan_2_update.contents.short_channel_id);
+ route.route_params = Some(route_params.clone());
nodes[0].router.expect_find_route(route_params, Ok(route));
nodes[0].node.process_pending_htlc_forwards();
check_added_monitors!(nodes[0], 1);
let mut events = nodes[0].node.get_and_clear_pending_msg_events();
assert_eq!(events.len(), 1);
- let payment_claimable = pass_along_path(&nodes[0], &[&nodes[1], &nodes[2]], 1_000_000,
- payment_hash, Some(payment_secret), events.pop().unwrap(), true, None).unwrap();
- match payment_claimable {
- Event::PaymentClaimable { onion_fields, .. } => {
- assert_eq!(onion_fields.unwrap().custom_tlvs(), &custom_tlvs);
- },
- _ => panic!("Unexpected event"),
- };
+ let path = &[&nodes[1], &nodes[2]];
+ let args = PassAlongPathArgs::new(&nodes[0], path, 1_000_000, payment_hash, events.pop().unwrap())
+ .with_payment_secret(payment_secret)
+ .with_custom_tlvs(custom_tlvs);
+ do_pass_along_path(args);
claim_payment_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], false, payment_preimage);
}
let chan_2_3 = create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 100_000, 0);
let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
- .with_bolt11_features(nodes[3].node.invoice_features()).unwrap();
+ .with_bolt11_features(nodes[3].node.bolt11_invoice_features()).unwrap();
let mut route = get_route!(nodes[0], payment_params, 15_000_000).unwrap();
assert_eq!(route.paths.len(), 2);
route.paths.sort_by(|path_a, _| {
let payment_metadata = vec![44, 49, 52, 142];
let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV)
- .with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
+ .with_bolt11_features(nodes[1].node.bolt11_invoice_features()).unwrap();
let mut route_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat);
// Send the MPP payment, delivering the updated commitment state to nodes[1].
do_test_payment_metadata_consistency(false, true);
do_test_payment_metadata_consistency(false, false);
}
+
+#[test]
+fn test_htlc_forward_considers_anchor_outputs_value() {
+ // Tests that:
+ //
+ // 1) Forwarding nodes don't forward HTLCs that would cause their balance to dip below the
+ // reserve when considering the value of anchor outputs.
+ //
+ // 2) Recipients of `update_add_htlc` properly reject HTLCs that would cause the initiator's
+ // balance to dip below the reserve when considering the value of anchor outputs.
+ let mut config = test_default_channel_config();
+ config.channel_handshake_config.negotiate_anchors_zero_fee_htlc_tx = true;
+ config.manually_accept_inbound_channels = true;
+ config.channel_config.forwarding_fee_base_msat = 0;
+ config.channel_config.forwarding_fee_proportional_millionths = 0;
+
+ // Set up a test network of three nodes that replicates a production failure leading to the
+ // discovery of this bug.
+ 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, &[Some(config), Some(config), Some(config)]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+
+ const CHAN_AMT: u64 = 1_000_000;
+ const PUSH_MSAT: u64 = 900_000_000;
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, CHAN_AMT, 500_000_000);
+ let (_, _, chan_id_2, _) = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, CHAN_AMT, PUSH_MSAT);
+
+ let channel_reserve_msat = get_holder_selected_channel_reserve_satoshis(CHAN_AMT, &config) * 1000;
+ let commitment_fee_msat = commit_tx_fee_msat(
+ *nodes[1].fee_estimator.sat_per_kw.lock().unwrap(), 2, &ChannelTypeFeatures::anchors_zero_htlc_fee_and_dependencies()
+ );
+ let anchor_outpus_value_msat = ANCHOR_OUTPUT_VALUE_SATOSHI * 2 * 1000;
+ let sendable_balance_msat = CHAN_AMT * 1000 - PUSH_MSAT - channel_reserve_msat - commitment_fee_msat - anchor_outpus_value_msat;
+ let channel_details = nodes[1].node.list_channels().into_iter().find(|channel| channel.channel_id == chan_id_2).unwrap();
+ assert!(sendable_balance_msat >= channel_details.next_outbound_htlc_minimum_msat);
+ assert!(sendable_balance_msat <= channel_details.next_outbound_htlc_limit_msat);
+
+ send_payment(&nodes[0], &[&nodes[1], &nodes[2]], sendable_balance_msat);
+ send_payment(&nodes[2], &[&nodes[1], &nodes[0]], sendable_balance_msat);
+
+ // Send out an HTLC that would cause the forwarding node to dip below its reserve when
+ // considering the value of anchor outputs.
+ let (route, payment_hash, _, payment_secret) = get_route_and_payment_hash!(
+ nodes[0], nodes[2], sendable_balance_msat + anchor_outpus_value_msat
+ );
+ nodes[0].node.send_payment_with_route(
+ &route, payment_hash, RecipientOnionFields::secret_only(payment_secret), PaymentId(payment_hash.0)
+ ).unwrap();
+ check_added_monitors!(nodes[0], 1);
+
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ let mut update_add_htlc = if let MessageSendEvent::UpdateHTLCs { updates, .. } = events.pop().unwrap() {
+ nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &updates.update_add_htlcs[0]);
+ check_added_monitors(&nodes[1], 0);
+ commitment_signed_dance!(nodes[1], nodes[0], &updates.commitment_signed, false);
+ updates.update_add_htlcs[0].clone()
+ } else {
+ panic!("Unexpected event");
+ };
+
+ // The forwarding node should reject forwarding it as expected.
+ expect_pending_htlcs_forwardable!(nodes[1]);
+ expect_pending_htlcs_forwardable_and_htlc_handling_failed!(&nodes[1], vec![HTLCDestination::NextHopChannel {
+ node_id: Some(nodes[2].node.get_our_node_id()),
+ channel_id: chan_id_2
+ }]);
+ check_added_monitors(&nodes[1], 1);
+
+ let mut events = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ if let MessageSendEvent::UpdateHTLCs { updates, .. } = events.pop().unwrap() {
+ nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates.update_fail_htlcs[0]);
+ check_added_monitors(&nodes[0], 0);
+ commitment_signed_dance!(nodes[0], nodes[1], &updates.commitment_signed, false);
+ } else {
+ panic!("Unexpected event");
+ }
+
+ expect_payment_failed!(nodes[0], payment_hash, false);
+
+ // Assume that the forwarding node did forward it, and make sure the recipient rejects it as an
+ // invalid update and closes the channel.
+ update_add_htlc.channel_id = chan_id_2;
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add_htlc);
+ check_closed_event(&nodes[2], 1, ClosureReason::ProcessingError {
+ err: "Remote HTLC add would put them under remote reserve value".to_owned()
+ }, false, &[nodes[1].node.get_our_node_id()], 1_000_000);
+ check_closed_broadcast(&nodes[2], 1, true);
+ check_added_monitors(&nodes[2], 1);
+}
+
+#[test]
+fn peel_payment_onion_custom_tlvs() {
+ 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);
+ let secp_ctx = Secp256k1::new();
+
+ let amt_msat = 1000;
+ let payment_params = PaymentParameters::for_keysend(nodes[1].node.get_our_node_id(),
+ TEST_FINAL_CLTV, false);
+ let route_params = RouteParameters::from_payment_params_and_value(payment_params, amt_msat);
+ let route = functional_test_utils::get_route(&nodes[0], &route_params).unwrap();
+ let mut recipient_onion = RecipientOnionFields::spontaneous_empty()
+ .with_custom_tlvs(vec![(414141, vec![42; 1200])]).unwrap();
+ let prng_seed = chanmon_cfgs[0].keys_manager.get_secure_random_bytes();
+ let session_priv = SecretKey::from_slice(&prng_seed[..]).expect("RNG is busted");
+ let keysend_preimage = PaymentPreimage([42; 32]);
+ let payment_hash = PaymentHash(Sha256::hash(&keysend_preimage.0).to_byte_array());
+
+ let (onion_routing_packet, first_hop_msat, cltv_expiry) = onion_utils::create_payment_onion(
+ &secp_ctx, &route.paths[0], &session_priv, amt_msat, recipient_onion.clone(),
+ nodes[0].best_block_info().1, &payment_hash, &Some(keysend_preimage), prng_seed
+ ).unwrap();
+
+ let update_add = msgs::UpdateAddHTLC {
+ channel_id: ChannelId([0; 32]),
+ htlc_id: 42,
+ amount_msat: first_hop_msat,
+ payment_hash,
+ cltv_expiry,
+ skimmed_fee_msat: None,
+ onion_routing_packet,
+ blinding_point: None,
+ };
+ let peeled_onion = crate::ln::onion_payment::peel_payment_onion(
+ &update_add, &&chanmon_cfgs[1].keys_manager, &&chanmon_cfgs[1].logger, &secp_ctx,
+ nodes[1].best_block_info().1, true, false
+ ).unwrap();
+ assert_eq!(peeled_onion.incoming_amt_msat, Some(amt_msat));
+ match peeled_onion.routing {
+ PendingHTLCRouting::ReceiveKeysend {
+ payment_data, payment_metadata, custom_tlvs, ..
+ } => {
+ #[cfg(not(c_bindings))]
+ assert_eq!(&custom_tlvs, recipient_onion.custom_tlvs());
+ #[cfg(c_bindings)]
+ assert_eq!(custom_tlvs, recipient_onion.custom_tlvs());
+ assert!(payment_metadata.is_none());
+ assert!(payment_data.is_none());
+ },
+ _ => panic!()
+ }
+}