use bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
use crate::blinded_path::BlindedPath;
use crate::blinded_path::payment::{ForwardNode, ForwardTlvs, PaymentConstraints, PaymentRelay, ReceiveTlvs};
-use crate::events::{HTLCDestination, MessageSendEventsProvider};
+use crate::events::{Event, HTLCDestination, MessageSendEvent, MessageSendEventsProvider, PaymentFailureReason};
use crate::ln::PaymentSecret;
use crate::ln::channelmanager;
use crate::ln::channelmanager::{PaymentId, RecipientOnionFields};
use crate::ln::msgs::ChannelMessageHandler;
use crate::ln::onion_utils;
use crate::ln::onion_utils::INVALID_ONION_BLINDING;
-use crate::ln::outbound_payment::Retry;
+use crate::ln::outbound_payment::{Retry, IDEMPOTENCY_TIMEOUT_TICKS};
+use crate::offers::invoice::BlindedPayInfo;
use crate::prelude::*;
-use crate::routing::router::{PaymentParameters, RouteParameters};
+use crate::routing::router::{Payee, PaymentParameters, RouteParameters};
use crate::util::config::UserConfig;
use crate::util::test_utils;
-pub fn get_blinded_route_parameters(
- amt_msat: u64, payment_secret: PaymentSecret, node_ids: Vec<PublicKey>,
- channel_upds: &[&msgs::UnsignedChannelUpdate], keys_manager: &test_utils::TestKeysInterface
-) -> RouteParameters {
+fn blinded_payment_path(
+ payment_secret: PaymentSecret, intro_node_min_htlc: u64, intro_node_max_htlc: u64,
+ node_ids: Vec<PublicKey>, channel_upds: &[&msgs::UnsignedChannelUpdate],
+ keys_manager: &test_utils::TestKeysInterface
+) -> (BlindedPayInfo, BlindedPath) {
let mut intermediate_nodes = Vec::new();
- for (node_id, chan_upd) in node_ids.iter().zip(channel_upds) {
+ let mut intro_node_min_htlc_opt = Some(intro_node_min_htlc);
+ let mut intro_node_max_htlc_opt = Some(intro_node_max_htlc);
+ for (idx, (node_id, chan_upd)) in node_ids.iter().zip(channel_upds).enumerate() {
intermediate_nodes.push(ForwardNode {
node_id: *node_id,
tlvs: ForwardTlvs {
},
payment_constraints: PaymentConstraints {
max_cltv_expiry: u32::max_value(),
- htlc_minimum_msat: chan_upd.htlc_minimum_msat,
+ htlc_minimum_msat: intro_node_min_htlc_opt.take()
+ .unwrap_or_else(|| channel_upds[idx - 1].htlc_minimum_msat),
},
features: BlindedHopFeatures::empty(),
},
- htlc_maximum_msat: chan_upd.htlc_maximum_msat,
+ htlc_maximum_msat: intro_node_max_htlc_opt.take()
+ .unwrap_or_else(|| channel_upds[idx - 1].htlc_maximum_msat),
});
}
let payee_tlvs = ReceiveTlvs {
payment_secret,
payment_constraints: PaymentConstraints {
max_cltv_expiry: u32::max_value(),
- htlc_minimum_msat: channel_upds.last().unwrap().htlc_minimum_msat,
+ htlc_minimum_msat:
+ intro_node_min_htlc_opt.unwrap_or_else(|| channel_upds.last().unwrap().htlc_minimum_msat),
},
};
let mut secp_ctx = Secp256k1::new();
- let blinded_path = BlindedPath::new_for_payment(
+ BlindedPath::new_for_payment(
&intermediate_nodes[..], *node_ids.last().unwrap(), payee_tlvs,
- channel_upds.last().unwrap().htlc_maximum_msat, keys_manager, &secp_ctx
- ).unwrap();
+ intro_node_max_htlc_opt.unwrap_or_else(|| channel_upds.last().unwrap().htlc_maximum_msat),
+ TEST_FINAL_CLTV as u16, keys_manager, &secp_ctx
+ ).unwrap()
+}
+pub fn get_blinded_route_parameters(
+ amt_msat: u64, payment_secret: PaymentSecret, intro_node_min_htlc: u64, intro_node_max_htlc: u64,
+ node_ids: Vec<PublicKey>, channel_upds: &[&msgs::UnsignedChannelUpdate],
+ keys_manager: &test_utils::TestKeysInterface
+) -> RouteParameters {
RouteParameters::from_payment_params_and_value(
- PaymentParameters::blinded(vec![blinded_path]), amt_msat
+ PaymentParameters::blinded(vec![
+ blinded_payment_path(
+ payment_secret, intro_node_min_htlc, intro_node_max_htlc, node_ids, channel_upds,
+ keys_manager
+ )
+ ]), amt_msat
)
}
};
let mut secp_ctx = Secp256k1::new();
let blinded_path = BlindedPath::one_hop_for_payment(
- nodes[1].node.get_our_node_id(), payee_tlvs, &chanmon_cfgs[1].keys_manager, &secp_ctx
+ nodes[1].node.get_our_node_id(), payee_tlvs, TEST_FINAL_CLTV as u16,
+ &chanmon_cfgs[1].keys_manager, &secp_ctx
).unwrap();
let route_params = RouteParameters::from_payment_params_and_value(
},
};
let blinded_path = BlindedPath::one_hop_for_payment(
- nodes[3].node.get_our_node_id(), payee_tlvs, &chanmon_cfgs[3].keys_manager, &secp_ctx
+ nodes[3].node.get_our_node_id(), payee_tlvs, TEST_FINAL_CLTV as u16,
+ &chanmon_cfgs[3].keys_manager, &secp_ctx
).unwrap();
let bolt12_features =
claim_payment_along_route(&nodes[0], expected_route, false, payment_preimage);
}
+#[test]
+fn mpp_to_three_hop_blinded_paths() {
+ let chanmon_cfgs = create_chanmon_cfgs(6);
+ let node_cfgs = create_node_cfgs(6, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(6, &node_cfgs, &[None, None, None, None, None, None]);
+ let nodes = create_network(6, &node_cfgs, &node_chanmgrs);
+
+ // Create this network topology so node 0 MPP's over 2 3-hop blinded paths:
+ // n1 -- n3
+ // / \
+ // n0 n5
+ // \ /
+ // n2 -- n4
+ create_announced_chan_between_nodes(&nodes, 0, 1);
+ create_announced_chan_between_nodes(&nodes, 0, 2);
+ let chan_upd_1_3 = create_announced_chan_between_nodes(&nodes, 1, 3).0.contents;
+ let chan_upd_2_4 = create_announced_chan_between_nodes(&nodes, 2, 4).0.contents;
+ let chan_upd_3_5 = create_announced_chan_between_nodes(&nodes, 3, 5).0.contents;
+ let chan_upd_4_5 = create_announced_chan_between_nodes(&nodes, 4, 5).0.contents;
+
+ let amt_msat = 15_000_000;
+ let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[5], Some(amt_msat), None);
+ let route_params = {
+ let path_1_params = get_blinded_route_parameters(
+ amt_msat, payment_secret, 1, 1_0000_0000, vec![
+ nodes[1].node.get_our_node_id(), nodes[3].node.get_our_node_id(),
+ nodes[5].node.get_our_node_id()
+ ], &[&chan_upd_1_3, &chan_upd_3_5], &chanmon_cfgs[5].keys_manager
+ );
+ let path_2_params = get_blinded_route_parameters(
+ amt_msat, payment_secret, 1, 1_0000_0000, vec![
+ nodes[2].node.get_our_node_id(), nodes[4].node.get_our_node_id(),
+ nodes[5].node.get_our_node_id()
+ ], &[&chan_upd_2_4, &chan_upd_4_5], &chanmon_cfgs[5].keys_manager
+ );
+ let pay_params = PaymentParameters::blinded(
+ vec![
+ path_1_params.payment_params.payee.blinded_route_hints()[0].clone(),
+ path_2_params.payment_params.payee.blinded_route_hints()[0].clone()
+ ]
+ )
+ .with_bolt12_features(channelmanager::provided_bolt12_invoice_features(&UserConfig::default()))
+ .unwrap();
+ RouteParameters::from_payment_params_and_value(pay_params, amt_msat)
+ };
+
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(),
+ PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 2);
+
+ let expected_route: &[&[&Node]] = &[&[&nodes[1], &nodes[3], &nodes[5]], &[&nodes[2], &nodes[4], &nodes[5]]];
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 2);
+
+ let ev = remove_first_msg_event_to_node(&nodes[1].node.get_our_node_id(), &mut events);
+ pass_along_path(&nodes[0], expected_route[0], amt_msat, payment_hash.clone(),
+ Some(payment_secret), ev.clone(), false, None);
+
+ let ev = remove_first_msg_event_to_node(&nodes[2].node.get_our_node_id(), &mut events);
+ pass_along_path(&nodes[0], expected_route[1], amt_msat, payment_hash.clone(),
+ Some(payment_secret), ev.clone(), true, None);
+ claim_payment_along_route(&nodes[0], expected_route, false, payment_preimage);
+}
+
enum ForwardCheckFail {
// Fail a check on the inbound onion payload. In this case, we underflow when calculating the
// outgoing cltv_expiry.
#[test]
fn forward_checks_failure() {
- do_forward_checks_failure(ForwardCheckFail::InboundOnionCheck);
- do_forward_checks_failure(ForwardCheckFail::ForwardPayloadEncodedAsReceive);
- do_forward_checks_failure(ForwardCheckFail::OutboundChannelCheck);
+ do_forward_checks_failure(ForwardCheckFail::InboundOnionCheck, true);
+ do_forward_checks_failure(ForwardCheckFail::InboundOnionCheck, false);
+ do_forward_checks_failure(ForwardCheckFail::ForwardPayloadEncodedAsReceive, true);
+ do_forward_checks_failure(ForwardCheckFail::ForwardPayloadEncodedAsReceive, false);
+ do_forward_checks_failure(ForwardCheckFail::OutboundChannelCheck, true);
+ do_forward_checks_failure(ForwardCheckFail::OutboundChannelCheck, false);
}
-fn do_forward_checks_failure(check: ForwardCheckFail) {
+fn do_forward_checks_failure(check: ForwardCheckFail, intro_fails: bool) {
// Ensure we'll fail backwards properly if a forwarding check fails on initial update_add
// receipt.
- 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);
+ let chanmon_cfgs = create_chanmon_cfgs(4);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
+ let mut nodes = create_network(4, &node_cfgs, &node_chanmgrs);
// We need the session priv to construct a bogus onion packet later.
*nodes[0].keys_manager.override_random_bytes.lock().unwrap() = Some([3; 32]);
create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
let chan_upd_1_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0).0.contents;
+ let chan_upd_2_3 = create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 1_000_000, 0).0.contents;
let amt_msat = 5000;
- let (_, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[2], Some(amt_msat), None);
- let route_params = get_blinded_route_parameters(amt_msat, payment_secret,
- nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(), &[&chan_upd_1_2],
- &chanmon_cfgs[2].keys_manager);
+ let (_, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[3], Some(amt_msat), None);
+ let route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
+ nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(),
+ &[&chan_upd_1_2, &chan_upd_2_3], &chanmon_cfgs[3].keys_manager);
let route = get_route(&nodes[0], &route_params).unwrap();
node_cfgs[0].router.expect_find_route(route_params.clone(), Ok(route.clone()));
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params, Retry::Attempts(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 ev = remove_first_msg_event_to_node(&nodes[1].node.get_our_node_id(), &mut events);
- let mut payment_event = SendEvent::from_event(ev);
+ macro_rules! cause_error {
+ ($src_node_idx: expr, $target_node_idx: expr, $update_add: expr) => {
+ match check {
+ ForwardCheckFail::InboundOnionCheck => {
+ $update_add.cltv_expiry = 10; // causes outbound CLTV expiry to underflow
+ },
+ ForwardCheckFail::ForwardPayloadEncodedAsReceive => {
+ let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
+ let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
+ let cur_height = nodes[0].best_block_info().1;
+ let (mut onion_payloads, ..) = onion_utils::build_onion_payloads(
+ &route.paths[0], amt_msat, RecipientOnionFields::spontaneous_empty(), cur_height, &None).unwrap();
+ // Remove the receive payload so the blinded forward payload is encoded as a final payload
+ // (i.e. next_hop_hmac == [0; 32])
+ onion_payloads.pop();
+ if $target_node_idx + 1 < nodes.len() {
+ onion_payloads.pop();
+ }
+ $update_add.onion_routing_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash).unwrap();
+ },
+ ForwardCheckFail::OutboundChannelCheck => {
+ // The intro node will see that the next-hop peer is disconnected and fail the HTLC backwards.
+ nodes[$src_node_idx].node.peer_disconnected(&nodes[$target_node_idx].node.get_our_node_id());
+ }
+ }
+ }
+ }
- let mut update_add = &mut payment_event.msgs[0];
- match check {
- ForwardCheckFail::InboundOnionCheck => {
- update_add.cltv_expiry = 10; // causes outbound CLTV expiry to underflow
- },
- ForwardCheckFail::ForwardPayloadEncodedAsReceive => {
- let session_priv = SecretKey::from_slice(&[3; 32]).unwrap();
- let onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
- let cur_height = nodes[0].best_block_info().1;
- let (mut onion_payloads, ..) = onion_utils::build_onion_payloads(
- &route.paths[0], amt_msat, RecipientOnionFields::spontaneous_empty(), cur_height, &None).unwrap();
- // Remove the receive payload so the blinded forward payload is encoded as a final payload
- // (i.e. next_hop_hmac == [0; 32])
- onion_payloads.pop();
- update_add.onion_routing_packet = onion_utils::construct_onion_packet(onion_payloads, onion_keys, [0; 32], &payment_hash).unwrap();
- },
- ForwardCheckFail::OutboundChannelCheck => {
- // The intro node will see that the next-hop peer is disconnected and fail the HTLC backwards.
- nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id());
- },
+ let mut updates_0_1 = get_htlc_update_msgs!(nodes[0], nodes[1].node.get_our_node_id());
+ let update_add = &mut updates_0_1.update_add_htlcs[0];
+
+ if intro_fails {
+ cause_error!(1, 2, update_add);
}
- nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event.msgs[0]);
+
+ nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &update_add);
check_added_monitors!(nodes[1], 0);
- do_commitment_signed_dance(&nodes[1], &nodes[0], &payment_event.commitment_msg, true, true);
+ do_commitment_signed_dance(&nodes[1], &nodes[0], &updates_0_1.commitment_signed, true, true);
+
+ if intro_fails {
+ let mut 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]);
+ do_commitment_signed_dance(&nodes[0], &nodes[1], &updates.commitment_signed, false, false);
+ expect_payment_failed_conditions(&nodes[0], payment_hash, false,
+ PaymentFailedConditions::new().expected_htlc_error_data(INVALID_ONION_BLINDING, &[0; 32]));
+ return
+ }
+
+ expect_pending_htlcs_forwardable!(nodes[1]);
+ check_added_monitors!(nodes[1], 1);
+
+ let mut updates_1_2 = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
+ let mut update_add = &mut updates_1_2.update_add_htlcs[0];
+
+ cause_error!(2, 3, update_add);
+
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add);
+ check_added_monitors!(nodes[2], 0);
+ do_commitment_signed_dance(&nodes[2], &nodes[1], &updates_1_2.commitment_signed, true, true);
+
+ let mut updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
+ let update_malformed = &mut updates.update_fail_malformed_htlcs[0];
+ assert_eq!(update_malformed.failure_code, INVALID_ONION_BLINDING);
+ assert_eq!(update_malformed.sha256_of_onion, [0; 32]);
+
+ // Ensure the intro node will properly blind the error if its downstream node failed to do so.
+ update_malformed.sha256_of_onion = [1; 32];
+ update_malformed.failure_code = INVALID_ONION_BLINDING ^ 1;
+ nodes[1].node.handle_update_fail_malformed_htlc(&nodes[2].node.get_our_node_id(), update_malformed);
+ do_commitment_signed_dance(&nodes[1], &nodes[2], &updates.commitment_signed, true, false);
let mut 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]);
let amt_msat = 5000;
let (_, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[2], Some(amt_msat), None);
- let route_params = get_blinded_route_parameters(amt_msat, payment_secret,
+ let route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(), &[&chan_upd_1_2],
&chanmon_cfgs[2].keys_manager);
let mut updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
let mut update_malformed = &mut updates.update_fail_malformed_htlcs[0];
- // Ensure the final hop does not correctly blind their error.
+ // Check that the final node encodes its failure correctly.
+ assert_eq!(update_malformed.failure_code, INVALID_ONION_BLINDING);
+ assert_eq!(update_malformed.sha256_of_onion, [0; 32]);
+
+ // Modify such the final hop does not correctly blind their error so we can ensure the intro node
+ // converts it to the correct error.
update_malformed.sha256_of_onion = [1; 32];
nodes[1].node.handle_update_fail_malformed_htlc(&nodes[2].node.get_our_node_id(), update_malformed);
do_commitment_signed_dance(&nodes[1], &nodes[2], &updates.commitment_signed, true, false);
#[test]
fn forward_fail_in_process_pending_htlc_fwds() {
- do_forward_fail_in_process_pending_htlc_fwds(ProcessPendingHTLCsCheck::FwdPeerDisconnected);
- do_forward_fail_in_process_pending_htlc_fwds(ProcessPendingHTLCsCheck::FwdChannelClosed);
+ do_forward_fail_in_process_pending_htlc_fwds(ProcessPendingHTLCsCheck::FwdPeerDisconnected, true);
+ do_forward_fail_in_process_pending_htlc_fwds(ProcessPendingHTLCsCheck::FwdPeerDisconnected, false);
+ do_forward_fail_in_process_pending_htlc_fwds(ProcessPendingHTLCsCheck::FwdChannelClosed, true);
+ do_forward_fail_in_process_pending_htlc_fwds(ProcessPendingHTLCsCheck::FwdChannelClosed, false);
}
-fn do_forward_fail_in_process_pending_htlc_fwds(check: ProcessPendingHTLCsCheck) {
+fn do_forward_fail_in_process_pending_htlc_fwds(check: ProcessPendingHTLCsCheck, intro_fails: bool) {
// Ensure the intro node will error backwards properly if the HTLC fails in
// process_pending_htlc_forwards.
- 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);
+ let chanmon_cfgs = create_chanmon_cfgs(4);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
+ let mut nodes = create_network(4, &node_cfgs, &node_chanmgrs);
create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
- let (chan_upd_1_2, channel_id) = {
+ let (chan_upd_1_2, chan_id_1_2) = {
let chan = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0);
(chan.0.contents, chan.2)
};
+ let (chan_upd_2_3, chan_id_2_3) = {
+ let chan = create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 1_000_000, 0);
+ (chan.0.contents, chan.2)
+ };
let amt_msat = 5000;
let (_, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[2], Some(amt_msat), None);
- let route_params = get_blinded_route_parameters(amt_msat, payment_secret,
- nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(), &[&chan_upd_1_2],
+ let route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
+ nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(), &[&chan_upd_1_2, &chan_upd_2_3],
&chanmon_cfgs[2].keys_manager);
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
check_added_monitors!(nodes[1], 0);
do_commitment_signed_dance(&nodes[1], &nodes[0], &payment_event.commitment_msg, false, false);
+ macro_rules! cause_error {
+ ($prev_node: expr, $curr_node: expr, $next_node: expr, $failed_chan_id: expr, $failed_scid: expr) => {
+ match check {
+ ProcessPendingHTLCsCheck::FwdPeerDisconnected => {
+ // Disconnect the next-hop peer so when we go to forward in process_pending_htlc_forwards, the
+ // intro node will error backwards.
+ $curr_node.node.peer_disconnected(&$next_node.node.get_our_node_id());
+ expect_pending_htlcs_forwardable!($curr_node);
+ expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!($curr_node,
+ vec![HTLCDestination::NextHopChannel { node_id: Some($next_node.node.get_our_node_id()), channel_id: $failed_chan_id }]);
+ },
+ ProcessPendingHTLCsCheck::FwdChannelClosed => {
+ // Force close the next-hop channel so when we go to forward in process_pending_htlc_forwards,
+ // the intro node will error backwards.
+ $curr_node.node.force_close_broadcasting_latest_txn(&$failed_chan_id, &$next_node.node.get_our_node_id()).unwrap();
+ let events = $curr_node.node.get_and_clear_pending_events();
+ match events[0] {
+ crate::events::Event::PendingHTLCsForwardable { .. } => {},
+ _ => panic!("Unexpected event {:?}", events),
+ };
+ match events[1] {
+ crate::events::Event::ChannelClosed { .. } => {},
+ _ => panic!("Unexpected event {:?}", events),
+ }
+
+ $curr_node.node.process_pending_htlc_forwards();
+ expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!($curr_node,
+ vec![HTLCDestination::UnknownNextHop { requested_forward_scid: $failed_scid }]);
+ check_closed_broadcast(&$curr_node, 1, true);
+ check_added_monitors!($curr_node, 1);
+ $curr_node.node.process_pending_htlc_forwards();
+ },
+ }
+ }
+ }
+
+ if intro_fails {
+ cause_error!(nodes[0], nodes[1], nodes[2], chan_id_1_2, chan_upd_1_2.short_channel_id);
+ let mut 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[1], 1);
+ do_commitment_signed_dance(&nodes[0], &nodes[1], &updates.commitment_signed, false, false);
+
+ expect_payment_failed_conditions(&nodes[0], payment_hash, false,
+ PaymentFailedConditions::new().expected_htlc_error_data(INVALID_ONION_BLINDING, &[0; 32]));
+ return
+ }
+
+ expect_pending_htlcs_forwardable!(nodes[1]);
+ check_added_monitors!(nodes[1], 1);
+
+ let mut updates_1_2 = get_htlc_update_msgs!(nodes[1], nodes[2].node.get_our_node_id());
+ let mut update_add = &mut updates_1_2.update_add_htlcs[0];
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &update_add);
+ check_added_monitors!(nodes[2], 0);
+ do_commitment_signed_dance(&nodes[2], &nodes[1], &updates_1_2.commitment_signed, true, true);
+
+ cause_error!(nodes[1], nodes[2], nodes[3], chan_id_2_3, chan_upd_2_3.short_channel_id);
+ check_added_monitors!(nodes[2], 1);
+
+ let mut updates = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
+ let update_malformed = &mut updates.update_fail_malformed_htlcs[0];
+ assert_eq!(update_malformed.failure_code, INVALID_ONION_BLINDING);
+ assert_eq!(update_malformed.sha256_of_onion, [0; 32]);
+
+ // Ensure the intro node will properly blind the error if its downstream node failed to do so.
+ update_malformed.sha256_of_onion = [1; 32];
+ update_malformed.failure_code = INVALID_ONION_BLINDING ^ 1;
+ nodes[1].node.handle_update_fail_malformed_htlc(&nodes[2].node.get_our_node_id(), update_malformed);
+ do_commitment_signed_dance(&nodes[1], &nodes[2], &updates.commitment_signed, true, false);
+
+ let mut 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]);
+ do_commitment_signed_dance(&nodes[0], &nodes[1], &updates.commitment_signed, false, false);
+ expect_payment_failed_conditions(&nodes[0], payment_hash, false,
+ PaymentFailedConditions::new().expected_htlc_error_data(INVALID_ONION_BLINDING, &[0; 32]));
+}
+
+#[test]
+fn blinded_intercept_payment() {
+ do_blinded_intercept_payment(true);
+ do_blinded_intercept_payment(false);
+}
+fn do_blinded_intercept_payment(intercept_node_fails: bool) {
+ let chanmon_cfgs = create_chanmon_cfgs(3);
+ let node_cfgs = create_node_cfgs(3, &chanmon_cfgs);
+ let mut intercept_forwards_config = test_default_channel_config();
+ intercept_forwards_config.accept_intercept_htlcs = true;
+ let node_chanmgrs = create_node_chanmgrs(3, &node_cfgs, &[None, Some(intercept_forwards_config), None]);
+ let nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+ let (channel_id, chan_upd) = {
+ let chan = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0);
+ (chan.2, chan.0.contents)
+ };
+
+ let amt_msat = 5000;
+ let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[2], Some(amt_msat), None);
+ let intercept_scid = nodes[1].node.get_intercept_scid();
+ let mut intercept_chan_upd = chan_upd;
+ intercept_chan_upd.short_channel_id = intercept_scid;
+ let route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
+ nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(), &[&intercept_chan_upd],
+ &chanmon_cfgs[2].keys_manager);
+
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(),
+ PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+ let payment_event = {
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ SendEvent::from_event(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, true);
+
+ let events = nodes[1].node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 1);
+ let (intercept_id, expected_outbound_amount_msat) = match events[0] {
+ crate::events::Event::HTLCIntercepted {
+ intercept_id, payment_hash: pmt_hash,
+ requested_next_hop_scid: short_channel_id, expected_outbound_amount_msat, ..
+ } => {
+ assert_eq!(pmt_hash, payment_hash);
+ assert_eq!(short_channel_id, intercept_scid);
+ (intercept_id, expected_outbound_amount_msat)
+ },
+ _ => panic!()
+ };
+
+ if intercept_node_fails {
+ nodes[1].node.fail_intercepted_htlc(intercept_id).unwrap();
+ expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1], vec![HTLCDestination::UnknownNextHop { requested_forward_scid: intercept_scid }]);
+ nodes[1].node.process_pending_htlc_forwards();
+ let update_fail = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
+ check_added_monitors!(&nodes[1], 1);
+ assert!(update_fail.update_fail_htlcs.len() == 1);
+ let fail_msg = update_fail.update_fail_htlcs[0].clone();
+ nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &fail_msg);
+ commitment_signed_dance!(nodes[0], nodes[1], update_fail.commitment_signed, false);
+ expect_payment_failed_conditions(&nodes[0], payment_hash, false,
+ PaymentFailedConditions::new().expected_htlc_error_data(INVALID_ONION_BLINDING, &[0; 32]));
+ return
+ }
+
+ nodes[1].node.forward_intercepted_htlc(intercept_id, &channel_id, nodes[2].node.get_our_node_id(), expected_outbound_amount_msat).unwrap();
+ expect_pending_htlcs_forwardable!(nodes[1]);
+
+ let payment_event = {
+ {
+ let mut added_monitors = nodes[1].chain_monitor.added_monitors.lock().unwrap();
+ assert_eq!(added_monitors.len(), 1);
+ added_monitors.clear();
+ }
+ let mut events = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ SendEvent::from_event(events.remove(0))
+ };
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event.msgs[0]);
+ commitment_signed_dance!(nodes[2], nodes[1], &payment_event.commitment_msg, false, true);
+ expect_pending_htlcs_forwardable!(nodes[2]);
+
+ expect_payment_claimable!(&nodes[2], payment_hash, payment_secret, amt_msat, None, nodes[2].node.get_our_node_id());
+ do_claim_payment_along_route(&nodes[0], &vec!(&vec!(&nodes[1], &nodes[2])[..]), false, payment_preimage);
+ expect_payment_sent(&nodes[0], payment_preimage, Some(Some(1000)), true, true);
+}
+
+#[test]
+fn two_hop_blinded_path_success() {
+ 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_with_value(&nodes, 0, 1, 1_000_000, 0);
+ let chan_upd_1_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0).0.contents;
+
+ let amt_msat = 5000;
+ let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[2], Some(amt_msat), None);
+ let route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
+ nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(), &[&chan_upd_1_2],
+ &chanmon_cfgs[2].keys_manager);
+
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+ pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2]]], amt_msat, payment_hash, payment_secret);
+ claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
+}
+
+#[test]
+fn three_hop_blinded_path_success() {
+ let chanmon_cfgs = create_chanmon_cfgs(5);
+ let node_cfgs = create_node_cfgs(5, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(5, &node_cfgs, &[None, None, None, None, None]);
+ let mut nodes = create_network(5, &node_cfgs, &node_chanmgrs);
+ 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);
+ let chan_upd_2_3 = create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 1_000_000, 0).0.contents;
+ let chan_upd_3_4 = create_announced_chan_between_nodes_with_value(&nodes, 3, 4, 1_000_000, 0).0.contents;
+
+ // Get all our nodes onto the same height so payments don't fail for CLTV violations.
+ connect_blocks(&nodes[0], nodes[4].best_block_info().1 - nodes[0].best_block_info().1);
+ connect_blocks(&nodes[1], nodes[4].best_block_info().1 - nodes[1].best_block_info().1);
+ connect_blocks(&nodes[2], nodes[4].best_block_info().1 - nodes[2].best_block_info().1);
+ assert_eq!(nodes[4].best_block_info().1, nodes[3].best_block_info().1);
+
+ let amt_msat = 5000;
+ let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[4], Some(amt_msat), None);
+ let route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
+ nodes.iter().skip(2).map(|n| n.node.get_our_node_id()).collect(),
+ &[&chan_upd_2_3, &chan_upd_3_4], &chanmon_cfgs[4].keys_manager);
+
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+ pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2], &nodes[3], &nodes[4]]], amt_msat, payment_hash, payment_secret);
+ claim_payment(&nodes[0], &[&nodes[1], &nodes[2], &nodes[3], &nodes[4]], payment_preimage);
+}
+
+#[test]
+fn three_hop_blinded_path_fail() {
+ // Test that an intermediate blinded forwarding node gets failed back to with
+ // malformed and also fails back themselves with malformed.
+ let chanmon_cfgs = create_chanmon_cfgs(4);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, None]);
+ let mut nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+ let chan_upd_1_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0).0.contents;
+ let chan_upd_2_3 = create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 1_000_000, 0).0.contents;
+
+ let amt_msat = 5000;
+ let (_, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[3], Some(amt_msat), None);
+ let route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
+ nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(),
+ &[&chan_upd_1_2, &chan_upd_2_3], &chanmon_cfgs[3].keys_manager);
+
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+ pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2], &nodes[3]]], amt_msat, payment_hash, payment_secret);
+
+ nodes[3].node.fail_htlc_backwards(&payment_hash);
+ expect_pending_htlcs_forwardable_conditions(
+ nodes[3].node.get_and_clear_pending_events(), &[HTLCDestination::FailedPayment { payment_hash }]
+ );
+ nodes[3].node.process_pending_htlc_forwards();
+ check_added_monitors!(nodes[3], 1);
+
+ let updates_3_2 = get_htlc_update_msgs!(nodes[3], nodes[2].node.get_our_node_id());
+ assert_eq!(updates_3_2.update_fail_malformed_htlcs.len(), 1);
+ let update_malformed = &updates_3_2.update_fail_malformed_htlcs[0];
+ assert_eq!(update_malformed.sha256_of_onion, [0; 32]);
+ assert_eq!(update_malformed.failure_code, INVALID_ONION_BLINDING);
+ nodes[2].node.handle_update_fail_malformed_htlc(&nodes[3].node.get_our_node_id(), update_malformed);
+ do_commitment_signed_dance(&nodes[2], &nodes[3], &updates_3_2.commitment_signed, true, false);
+
+ let updates_2_1 = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
+ assert_eq!(updates_2_1.update_fail_malformed_htlcs.len(), 1);
+ let update_malformed = &updates_2_1.update_fail_malformed_htlcs[0];
+ assert_eq!(update_malformed.sha256_of_onion, [0; 32]);
+ assert_eq!(update_malformed.failure_code, INVALID_ONION_BLINDING);
+ nodes[1].node.handle_update_fail_malformed_htlc(&nodes[2].node.get_our_node_id(), update_malformed);
+ do_commitment_signed_dance(&nodes[1], &nodes[2], &updates_2_1.commitment_signed, true, false);
+
+ let updates_1_0 = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
+ assert_eq!(updates_1_0.update_fail_htlcs.len(), 1);
+ nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates_1_0.update_fail_htlcs[0]);
+ do_commitment_signed_dance(&nodes[0], &nodes[1], &updates_1_0.commitment_signed, false, false);
+ expect_payment_failed_conditions(&nodes[0], payment_hash, false,
+ PaymentFailedConditions::new().expected_htlc_error_data(INVALID_ONION_BLINDING, &[0; 32]));
+}
+
+#[derive(PartialEq)]
+enum ReceiveCheckFail {
+ // The recipient fails the payment upon `PaymentClaimable`.
+ RecipientFail,
+ // Failure to decode the recipient's onion payload.
+ OnionDecodeFail,
+ // The incoming HTLC did not satisfy our requirements; in this case it underpaid us according to
+ // the expected receive amount in the onion.
+ ReceiveRequirements,
+ // The incoming HTLC errors when added to the Channel, in this case due to the HTLC being
+ // delivered out-of-order with a shutdown message.
+ ChannelCheck,
+ // The HTLC is successfully added to the inbound channel but fails receive checks in
+ // process_pending_htlc_forwards.
+ ProcessPendingHTLCsCheck,
+ // The HTLC violates the `PaymentConstraints` contained within the receiver's encrypted payload.
+ PaymentConstraints,
+}
+
+#[test]
+fn multi_hop_receiver_fail() {
+ do_multi_hop_receiver_fail(ReceiveCheckFail::RecipientFail);
+ do_multi_hop_receiver_fail(ReceiveCheckFail::OnionDecodeFail);
+ do_multi_hop_receiver_fail(ReceiveCheckFail::ReceiveRequirements);
+ do_multi_hop_receiver_fail(ReceiveCheckFail::ChannelCheck);
+ do_multi_hop_receiver_fail(ReceiveCheckFail::ProcessPendingHTLCsCheck);
+ do_multi_hop_receiver_fail(ReceiveCheckFail::PaymentConstraints);
+}
+
+fn do_multi_hop_receiver_fail(check: ReceiveCheckFail) {
+ // Test that the receiver to a multihop blinded path fails back correctly.
+ 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);
+ // We need the session priv to construct an invalid onion packet later.
+ let session_priv = [3; 32];
+ *nodes[0].keys_manager.override_random_bytes.lock().unwrap() = Some(session_priv);
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+ let (chan_upd_1_2, chan_id_1_2) = {
+ let (chan_upd, _, channel_id, ..) = create_announced_chan_between_nodes_with_value(
+ &nodes, 1, 2, 1_000_000, 0
+ );
+ (chan_upd.contents, channel_id)
+ };
+
+ let amt_msat = 5000;
+ let excess_final_cltv_delta_opt = if check == ReceiveCheckFail::ProcessPendingHTLCsCheck {
+ // Set the final CLTV expiry too low to trigger the failure in process_pending_htlc_forwards.
+ Some(TEST_FINAL_CLTV as u16 - 2)
+ } else { None };
+ let (_, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[2], Some(amt_msat), excess_final_cltv_delta_opt);
+ let mut route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
+ nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(), &[&chan_upd_1_2],
+ &chanmon_cfgs[2].keys_manager);
+
+ let route = if check == ReceiveCheckFail::ProcessPendingHTLCsCheck {
+ let mut route = get_route(&nodes[0], &route_params).unwrap();
+ // Set the final CLTV expiry too low to trigger the failure in process_pending_htlc_forwards.
+ route.paths[0].hops.last_mut().map(|h| h.cltv_expiry_delta += excess_final_cltv_delta_opt.unwrap() as u32);
+ route.paths[0].blinded_tail.as_mut().map(|bt| bt.excess_final_cltv_expiry_delta = excess_final_cltv_delta_opt.unwrap() as u32);
+ route
+ } else if check == ReceiveCheckFail::PaymentConstraints {
+ // Create a blinded path where the receiver's encrypted payload has an htlc_minimum_msat that is
+ // violated by `amt_msat`, and stick it in the route_params without changing the corresponding
+ // BlindedPayInfo (to ensure pathfinding still succeeds).
+ let high_htlc_min_bp = {
+ let mut high_htlc_minimum_upd = chan_upd_1_2.clone();
+ high_htlc_minimum_upd.htlc_minimum_msat = amt_msat + 1000;
+ let high_htlc_min_params = get_blinded_route_parameters(amt_msat, payment_secret, 1, 1_0000_0000,
+ nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(), &[&high_htlc_minimum_upd],
+ &chanmon_cfgs[2].keys_manager);
+ if let Payee::Blinded { route_hints, .. } = high_htlc_min_params.payment_params.payee {
+ route_hints[0].1.clone()
+ } else { panic!() }
+ };
+ if let Payee::Blinded { ref mut route_hints, .. } = route_params.payment_params.payee {
+ route_hints[0].1 = high_htlc_min_bp;
+ } else { panic!() }
+ find_route(&nodes[0], &route_params).unwrap()
+ } else {
+ find_route(&nodes[0], &route_params).unwrap()
+ };
+ node_cfgs[0].router.expect_find_route(route_params.clone(), Ok(route.clone()));
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+
+ let mut payment_event_0_1 = {
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ let ev = remove_first_msg_event_to_node(&nodes[1].node.get_our_node_id(), &mut events);
+ SendEvent::from_event(ev)
+ };
+ nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event_0_1.msgs[0]);
+ check_added_monitors!(nodes[1], 0);
+ do_commitment_signed_dance(&nodes[1], &nodes[0], &payment_event_0_1.commitment_msg, false, false);
+ expect_pending_htlcs_forwardable!(nodes[1]);
+ check_added_monitors!(&nodes[1], 1);
+
+ let mut payment_event_1_2 = {
+ let mut events = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ let ev = remove_first_msg_event_to_node(&nodes[2].node.get_our_node_id(), &mut events);
+ SendEvent::from_event(ev)
+ };
+
match check {
- ProcessPendingHTLCsCheck::FwdPeerDisconnected => {
- // Disconnect the next-hop peer so when we go to forward in process_pending_htlc_forwards, the
- // intro node will error backwards.
- nodes[1].node.peer_disconnected(&nodes[2].node.get_our_node_id());
- expect_pending_htlcs_forwardable!(nodes[1]);
- expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1],
- vec![HTLCDestination::NextHopChannel { node_id: Some(nodes[2].node.get_our_node_id()), channel_id }]);
+ ReceiveCheckFail::RecipientFail => {
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_1_2.msgs[0]);
+ check_added_monitors!(nodes[2], 0);
+ do_commitment_signed_dance(&nodes[2], &nodes[1], &payment_event_1_2.commitment_msg, true, true);
+ expect_pending_htlcs_forwardable!(nodes[2]);
+ check_payment_claimable(
+ &nodes[2].node.get_and_clear_pending_events()[0], payment_hash, payment_secret, amt_msat,
+ None, nodes[2].node.get_our_node_id()
+ );
+ nodes[2].node.fail_htlc_backwards(&payment_hash);
+ expect_pending_htlcs_forwardable_conditions(
+ nodes[2].node.get_and_clear_pending_events(), &[HTLCDestination::FailedPayment { payment_hash }]
+ );
+ nodes[2].node.process_pending_htlc_forwards();
+ check_added_monitors!(nodes[2], 1);
+ },
+ ReceiveCheckFail::OnionDecodeFail => {
+ let session_priv = SecretKey::from_slice(&session_priv).unwrap();
+ let mut onion_keys = onion_utils::construct_onion_keys(&Secp256k1::new(), &route.paths[0], &session_priv).unwrap();
+ let cur_height = nodes[0].best_block_info().1;
+ let (mut onion_payloads, ..) = onion_utils::build_onion_payloads(
+ &route.paths[0], amt_msat, RecipientOnionFields::spontaneous_empty(), cur_height, &None).unwrap();
+
+ let update_add = &mut payment_event_1_2.msgs[0];
+ onion_payloads.last_mut().map(|p| {
+ if let msgs::OutboundOnionPayload::BlindedReceive { ref mut intro_node_blinding_point, .. } = p {
+ // The receiver should error if both the update_add blinding_point and the
+ // intro_node_blinding_point are set.
+ assert!(intro_node_blinding_point.is_none() && update_add.blinding_point.is_some());
+ *intro_node_blinding_point = Some(PublicKey::from_slice(&[2; 33]).unwrap());
+ } else { panic!() }
+ });
+ update_add.onion_routing_packet = onion_utils::construct_onion_packet(
+ vec![onion_payloads.pop().unwrap()], vec![onion_keys.pop().unwrap()], [0; 32],
+ &payment_hash
+ ).unwrap();
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), update_add);
+ check_added_monitors!(nodes[2], 0);
+ do_commitment_signed_dance(&nodes[2], &nodes[1], &payment_event_1_2.commitment_msg, true, true);
+ },
+ ReceiveCheckFail::ReceiveRequirements => {
+ let update_add = &mut payment_event_1_2.msgs[0];
+ update_add.amount_msat -= 1;
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), update_add);
+ check_added_monitors!(nodes[2], 0);
+ do_commitment_signed_dance(&nodes[2], &nodes[1], &payment_event_1_2.commitment_msg, true, true);
},
- ProcessPendingHTLCsCheck::FwdChannelClosed => {
- // Force close the next-hop channel so when we go to forward in process_pending_htlc_forwards,
- // the intro node will error backwards.
- nodes[1].node.force_close_broadcasting_latest_txn(&channel_id, &nodes[2].node.get_our_node_id()).unwrap();
- let events = nodes[1].node.get_and_clear_pending_events();
+ ReceiveCheckFail::ChannelCheck => {
+ nodes[2].node.close_channel(&chan_id_1_2, &nodes[1].node.get_our_node_id()).unwrap();
+ let node_2_shutdown = get_event_msg!(nodes[2], MessageSendEvent::SendShutdown, nodes[1].node.get_our_node_id());
+ nodes[1].node.handle_shutdown(&nodes[2].node.get_our_node_id(), &node_2_shutdown);
+ let node_1_shutdown = get_event_msg!(nodes[1], MessageSendEvent::SendShutdown, nodes[2].node.get_our_node_id());
+
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_1_2.msgs[0]);
+ nodes[2].node.handle_commitment_signed(&nodes[1].node.get_our_node_id(), &payment_event_1_2.commitment_msg);
+ check_added_monitors!(nodes[2], 1);
+
+ nodes[2].node.handle_shutdown(&nodes[1].node.get_our_node_id(), &node_1_shutdown);
+ commitment_signed_dance!(nodes[2], nodes[1], (), false, true, false, false);
+ },
+ ReceiveCheckFail::ProcessPendingHTLCsCheck => {
+ assert_eq!(payment_event_1_2.msgs[0].cltv_expiry, nodes[0].best_block_info().1 + 1 + excess_final_cltv_delta_opt.unwrap() as u32 + TEST_FINAL_CLTV);
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_1_2.msgs[0]);
+ check_added_monitors!(nodes[2], 0);
+ do_commitment_signed_dance(&nodes[2], &nodes[1], &payment_event_1_2.commitment_msg, true, true);
+ expect_pending_htlcs_forwardable!(nodes[2]);
+ expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[2],
+ vec![HTLCDestination::FailedPayment { payment_hash }]);
+ check_added_monitors!(nodes[2], 1);
+ },
+ ReceiveCheckFail::PaymentConstraints => {
+ nodes[2].node.handle_update_add_htlc(&nodes[1].node.get_our_node_id(), &payment_event_1_2.msgs[0]);
+ check_added_monitors!(nodes[2], 0);
+ do_commitment_signed_dance(&nodes[2], &nodes[1], &payment_event_1_2.commitment_msg, true, true);
+ }
+ }
+
+ let updates_2_1 = get_htlc_update_msgs!(nodes[2], nodes[1].node.get_our_node_id());
+ assert_eq!(updates_2_1.update_fail_malformed_htlcs.len(), 1);
+ let update_malformed = &updates_2_1.update_fail_malformed_htlcs[0];
+ assert_eq!(update_malformed.sha256_of_onion, [0; 32]);
+ assert_eq!(update_malformed.failure_code, INVALID_ONION_BLINDING);
+ nodes[1].node.handle_update_fail_malformed_htlc(&nodes[2].node.get_our_node_id(), update_malformed);
+ do_commitment_signed_dance(&nodes[1], &nodes[2], &updates_2_1.commitment_signed, true, false);
+
+ let updates_1_0 = if check == ReceiveCheckFail::ChannelCheck {
+ let events = nodes[1].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 2);
+ events.into_iter().find_map(|ev| {
+ match ev {
+ MessageSendEvent:: UpdateHTLCs { node_id, updates } => {
+ assert_eq!(node_id, nodes[0].node.get_our_node_id());
+ return Some(updates)
+ },
+ MessageSendEvent::SendClosingSigned { .. } => None,
+ _ => panic!()
+ }
+ }).unwrap()
+ } else { get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id()) };
+ assert_eq!(updates_1_0.update_fail_htlcs.len(), 1);
+ nodes[0].node.handle_update_fail_htlc(&nodes[1].node.get_our_node_id(), &updates_1_0.update_fail_htlcs[0]);
+ do_commitment_signed_dance(&nodes[0], &nodes[1], &updates_1_0.commitment_signed, false, false);
+ expect_payment_failed_conditions(&nodes[0], payment_hash, false,
+ PaymentFailedConditions::new().expected_htlc_error_data(INVALID_ONION_BLINDING, &[0; 32]));
+}
+
+#[test]
+fn blinded_path_retries() {
+ let chanmon_cfgs = create_chanmon_cfgs(4);
+ // Make one blinded path's fees slightly higher so they are tried in a deterministic order.
+ let mut higher_fee_chan_cfg = test_default_channel_config();
+ higher_fee_chan_cfg.channel_config.forwarding_fee_base_msat += 1;
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, Some(higher_fee_chan_cfg), None]);
+ let mut nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+
+ // Create this network topology so nodes[0] has a blinded route hint to retry over.
+ // n1
+ // / \
+ // n0 n3
+ // \ /
+ // n2
+ 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);
+ let chan_1_3 = create_announced_chan_between_nodes_with_value(&nodes, 1, 3, 1_000_000, 0);
+ let chan_2_3 = create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 1_000_000, 0);
+
+ let amt_msat = 5000;
+ let (_, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[3], Some(amt_msat), None);
+ let route_params = {
+ let pay_params = PaymentParameters::blinded(
+ vec![
+ blinded_payment_path(payment_secret, 1, 1_0000_0000,
+ vec![nodes[1].node.get_our_node_id(), nodes[3].node.get_our_node_id()], &[&chan_1_3.0.contents],
+ &chanmon_cfgs[3].keys_manager
+ ),
+ blinded_payment_path(payment_secret, 1, 1_0000_0000,
+ vec![nodes[2].node.get_our_node_id(), nodes[3].node.get_our_node_id()], &[&chan_2_3.0.contents],
+ &chanmon_cfgs[3].keys_manager
+ ),
+ ]
+ )
+ .with_bolt12_features(channelmanager::provided_bolt12_invoice_features(&UserConfig::default()))
+ .unwrap();
+ RouteParameters::from_payment_params_and_value(pay_params, amt_msat)
+ };
+
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params.clone(), Retry::Attempts(2)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+ pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[3]]], amt_msat, payment_hash, payment_secret);
+
+ macro_rules! fail_payment_back {
+ ($intro_node: expr) => {
+ nodes[3].node.fail_htlc_backwards(&payment_hash);
+ expect_pending_htlcs_forwardable_conditions(
+ nodes[3].node.get_and_clear_pending_events(), &[HTLCDestination::FailedPayment { payment_hash }]
+ );
+ nodes[3].node.process_pending_htlc_forwards();
+ check_added_monitors!(nodes[3], 1);
+
+ let updates = get_htlc_update_msgs!(nodes[3], $intro_node.node.get_our_node_id());
+ assert_eq!(updates.update_fail_malformed_htlcs.len(), 1);
+ let update_malformed = &updates.update_fail_malformed_htlcs[0];
+ assert_eq!(update_malformed.sha256_of_onion, [0; 32]);
+ assert_eq!(update_malformed.failure_code, INVALID_ONION_BLINDING);
+ $intro_node.node.handle_update_fail_malformed_htlc(&nodes[3].node.get_our_node_id(), update_malformed);
+ do_commitment_signed_dance(&$intro_node, &nodes[3], &updates.commitment_signed, true, false);
+
+ let updates = get_htlc_update_msgs!($intro_node, nodes[0].node.get_our_node_id());
+ assert_eq!(updates.update_fail_htlcs.len(), 1);
+ nodes[0].node.handle_update_fail_htlc(&$intro_node.node.get_our_node_id(), &updates.update_fail_htlcs[0]);
+ do_commitment_signed_dance(&nodes[0], &$intro_node, &updates.commitment_signed, false, false);
+
+ let mut events = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(events.len(), 2);
match events[0] {
- crate::events::Event::PendingHTLCsForwardable { .. } => {},
- _ => panic!("Unexpected event {:?}", events),
- };
+ Event::PaymentPathFailed { payment_hash: ev_payment_hash, payment_failed_permanently, .. } => {
+ assert_eq!(payment_hash, ev_payment_hash);
+ assert_eq!(payment_failed_permanently, false);
+ },
+ _ => panic!("Unexpected event"),
+ }
match events[1] {
- crate::events::Event::ChannelClosed { .. } => {},
- _ => panic!("Unexpected event {:?}", events),
+ Event::PendingHTLCsForwardable { .. } => {},
+ _ => panic!("Unexpected event"),
}
+ nodes[0].node.process_pending_htlc_forwards();
+ }
+ }
+
+ fail_payment_back!(nodes[1]);
+
+ // Pass the retry along.
+ check_added_monitors!(nodes[0], 1);
+ let mut msg_events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(msg_events.len(), 1);
+ pass_along_path(&nodes[0], &[&nodes[2], &nodes[3]], amt_msat, payment_hash, Some(payment_secret), msg_events.pop().unwrap(), true, None);
- nodes[1].node.process_pending_htlc_forwards();
- expect_pending_htlcs_forwardable_and_htlc_handling_failed_ignore!(nodes[1],
- vec![HTLCDestination::UnknownNextHop { requested_forward_scid: chan_upd_1_2.short_channel_id }]);
- check_closed_broadcast(&nodes[1], 1, true);
- check_added_monitors!(nodes[1], 1);
- nodes[1].node.process_pending_htlc_forwards();
+ fail_payment_back!(nodes[2]);
+ let evs = nodes[0].node.get_and_clear_pending_events();
+ assert_eq!(evs.len(), 1);
+ match evs[0] {
+ Event::PaymentFailed { payment_hash: ev_payment_hash, reason, .. } => {
+ assert_eq!(ev_payment_hash, payment_hash);
+ // We have 1 retry attempt remaining, but we're out of blinded paths to try.
+ assert_eq!(reason, Some(PaymentFailureReason::RouteNotFound));
},
+ _ => panic!()
}
+}
+
+#[test]
+fn min_htlc() {
+ // The min htlc of a blinded path is the max (htlc_min - following_fees) along the path. Make sure
+ // the payment succeeds when we calculate the min htlc this way.
+ let chanmon_cfgs = create_chanmon_cfgs(4);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let mut node_1_cfg = test_default_channel_config();
+ node_1_cfg.channel_handshake_config.our_htlc_minimum_msat = 2000;
+ node_1_cfg.channel_config.forwarding_fee_base_msat = 1000;
+ node_1_cfg.channel_config.forwarding_fee_proportional_millionths = 100_000;
+ let mut node_2_cfg = test_default_channel_config();
+ node_2_cfg.channel_handshake_config.our_htlc_minimum_msat = 5000;
+ node_2_cfg.channel_config.forwarding_fee_base_msat = 200;
+ node_2_cfg.channel_config.forwarding_fee_proportional_millionths = 150_000;
+ let mut node_3_cfg = test_default_channel_config();
+ node_3_cfg.channel_handshake_config.our_htlc_minimum_msat = 2000;
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, Some(node_1_cfg), Some(node_2_cfg), Some(node_3_cfg)]);
+ let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+ let chan_1_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0);
+ let chan_2_3 = create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 1_000_000, 0);
+ let min_htlc_msat = {
+ // The min htlc for this setup is nodes[2]'s htlc_minimum_msat minus the
+ // following fees.
+ let post_base_fee = chan_2_3.1.contents.htlc_minimum_msat - chan_2_3.0.contents.fee_base_msat as u64;
+ let prop_fee = chan_2_3.0.contents.fee_proportional_millionths as u64;
+ (post_base_fee * 1_000_000 + 1_000_000 + prop_fee - 1) / (prop_fee + 1_000_000)
+ };
+ let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[3], Some(min_htlc_msat), None);
+ let mut route_params = get_blinded_route_parameters(
+ min_htlc_msat, payment_secret, chan_1_2.1.contents.htlc_minimum_msat,
+ chan_1_2.1.contents.htlc_maximum_msat, vec![nodes[1].node.get_our_node_id(),
+ nodes[2].node.get_our_node_id(), nodes[3].node.get_our_node_id()],
+ &[&chan_1_2.0.contents, &chan_2_3.0.contents], &chanmon_cfgs[3].keys_manager);
+ assert_eq!(min_htlc_msat,
+ route_params.payment_params.payee.blinded_route_hints()[0].0.htlc_minimum_msat);
+
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params.clone(), Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+ pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2], &nodes[3]]], min_htlc_msat, payment_hash, payment_secret);
+ claim_payment(&nodes[0], &[&nodes[1], &nodes[2], &nodes[3]], payment_preimage);
+
+ // Paying 1 less than the min fails.
+ for _ in 0..IDEMPOTENCY_TIMEOUT_TICKS + 1 {
+ nodes[0].node.timer_tick_occurred();
+ }
+ if let Payee::Blinded { ref mut route_hints, .. } = route_params.payment_params.payee {
+ route_hints[0].0.htlc_minimum_msat -= 1;
+ } else { panic!() }
+ route_params.final_value_msat -= 1;
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+
+ let mut payment_event_0_1 = {
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+ let ev = remove_first_msg_event_to_node(&nodes[1].node.get_our_node_id(), &mut events);
+ SendEvent::from_event(ev)
+ };
+ nodes[1].node.handle_update_add_htlc(&nodes[0].node.get_our_node_id(), &payment_event_0_1.msgs[0]);
+ check_added_monitors!(nodes[1], 0);
+ do_commitment_signed_dance(&nodes[1], &nodes[0], &payment_event_0_1.commitment_msg, true, true);
let mut 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[1], 1);
do_commitment_signed_dance(&nodes[0], &nodes[1], &updates.commitment_signed, false, false);
-
expect_payment_failed_conditions(&nodes[0], payment_hash, false,
PaymentFailedConditions::new().expected_htlc_error_data(INVALID_ONION_BLINDING, &[0; 32]));
}
+
+#[test]
+fn conditionally_round_fwd_amt() {
+ // Previously, the (rng-found) feerates below caught a bug where an intermediate node would
+ // calculate an amt_to_forward that underpaid them by 1 msat, caused by rounding up the outbound
+ // amount on top of an already rounded-up total routing fee. Ensure that we'll conditionally round
+ // down intermediate nodes' outbound amounts based on whether rounding up will result in
+ // undercharging for relay.
+ let chanmon_cfgs = create_chanmon_cfgs(5);
+ let node_cfgs = create_node_cfgs(5, &chanmon_cfgs);
+
+ let mut node_1_cfg = test_default_channel_config();
+ node_1_cfg.channel_config.forwarding_fee_base_msat = 247371;
+ node_1_cfg.channel_config.forwarding_fee_proportional_millionths = 86552;
+
+ let mut node_2_cfg = test_default_channel_config();
+ node_2_cfg.channel_config.forwarding_fee_base_msat = 198921;
+ node_2_cfg.channel_config.forwarding_fee_proportional_millionths = 681759;
+
+ let mut node_3_cfg = test_default_channel_config();
+ node_3_cfg.channel_config.forwarding_fee_base_msat = 132845;
+ node_3_cfg.channel_config.forwarding_fee_proportional_millionths = 552561;
+
+ let node_chanmgrs = create_node_chanmgrs(5, &node_cfgs, &[None, Some(node_1_cfg), Some(node_2_cfg), Some(node_3_cfg), None]);
+ let nodes = create_network(5, &node_cfgs, &node_chanmgrs);
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+ let chan_1_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0);
+ let chan_2_3 = create_announced_chan_between_nodes_with_value(&nodes, 2, 3, 1_000_000, 0);
+ let chan_3_4 = create_announced_chan_between_nodes_with_value(&nodes, 3, 4, 1_000_000, 0);
+
+ let amt_msat = 100_000;
+ let (payment_preimage, payment_hash, payment_secret) = get_payment_preimage_hash(&nodes[4], Some(amt_msat), None);
+ let mut route_params = get_blinded_route_parameters(amt_msat, payment_secret,
+ chan_1_2.1.contents.htlc_minimum_msat, chan_1_2.1.contents.htlc_maximum_msat,
+ vec![nodes[1].node.get_our_node_id(), nodes[2].node.get_our_node_id(),
+ nodes[3].node.get_our_node_id(), nodes[4].node.get_our_node_id()],
+ &[&chan_1_2.0.contents, &chan_2_3.0.contents, &chan_3_4.0.contents],
+ &chanmon_cfgs[4].keys_manager);
+ route_params.max_total_routing_fee_msat = None;
+
+ nodes[0].node.send_payment(payment_hash, RecipientOnionFields::spontaneous_empty(), PaymentId(payment_hash.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+ pass_along_route(&nodes[0], &[&[&nodes[1], &nodes[2], &nodes[3], &nodes[4]]], amt_msat, payment_hash, payment_secret);
+ nodes[4].node.claim_funds(payment_preimage);
+ let expected_path = &[&nodes[1], &nodes[2], &nodes[3], &nodes[4]];
+ let expected_route = &[&expected_path[..]];
+ let mut args = ClaimAlongRouteArgs::new(&nodes[0], &expected_route[..], payment_preimage)
+ .allow_1_msat_fee_overpay();
+ let expected_fee = pass_claimed_payment_along_route(args);
+ expect_payment_sent(&nodes[0], payment_preimage, Some(Some(expected_fee)), true, true);
+}
+
+#[test]
+fn blinded_keysend() {
+ let mut mpp_keysend_config = test_default_channel_config();
+ mpp_keysend_config.accept_mpp_keysend = true;
+ 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, Some(mpp_keysend_config)]);
+ let mut nodes = create_network(3, &node_cfgs, &node_chanmgrs);
+ create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1_000_000, 0);
+ let chan_upd_1_2 = create_announced_chan_between_nodes_with_value(&nodes, 1, 2, 1_000_000, 0).0.contents;
+
+ let amt_msat = 5000;
+ let (keysend_preimage, _, payment_secret) = get_payment_preimage_hash(&nodes[2], None, None);
+ let route_params = get_blinded_route_parameters(amt_msat, payment_secret, 1,
+ 1_0000_0000,
+ nodes.iter().skip(1).map(|n| n.node.get_our_node_id()).collect(),
+ &[&chan_upd_1_2], &chanmon_cfgs[2].keys_manager);
+
+ let payment_hash = nodes[0].node.send_spontaneous_payment_with_retry(Some(keysend_preimage), RecipientOnionFields::spontaneous_empty(), PaymentId(keysend_preimage.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors(&nodes[0], 1);
+
+ let expected_route: &[&[&Node]] = &[&[&nodes[1], &nodes[2]]];
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 1);
+
+ let ev = remove_first_msg_event_to_node(&nodes[1].node.get_our_node_id(), &mut events);
+ pass_along_path(&nodes[0], expected_route[0], amt_msat, payment_hash, Some(payment_secret), ev.clone(), true, Some(keysend_preimage));
+ claim_payment_along_route(&nodes[0], expected_route, false, keysend_preimage);
+}
+
+#[test]
+fn blinded_mpp_keysend() {
+ let mut mpp_keysend_config = test_default_channel_config();
+ mpp_keysend_config.accept_mpp_keysend = true;
+ let chanmon_cfgs = create_chanmon_cfgs(4);
+ let node_cfgs = create_node_cfgs(4, &chanmon_cfgs);
+ let node_chanmgrs = create_node_chanmgrs(4, &node_cfgs, &[None, None, None, Some(mpp_keysend_config)]);
+ let nodes = create_network(4, &node_cfgs, &node_chanmgrs);
+
+ create_announced_chan_between_nodes(&nodes, 0, 1);
+ create_announced_chan_between_nodes(&nodes, 0, 2);
+ let chan_1_3 = create_announced_chan_between_nodes(&nodes, 1, 3);
+ let chan_2_3 = create_announced_chan_between_nodes(&nodes, 2, 3);
+
+ let amt_msat = 15_000_000;
+ let (keysend_preimage, _, payment_secret) = get_payment_preimage_hash(&nodes[3], None, None);
+ let route_params = {
+ let pay_params = PaymentParameters::blinded(
+ vec![
+ blinded_payment_path(payment_secret, 1, 1_0000_0000,
+ vec![nodes[1].node.get_our_node_id(), nodes[3].node.get_our_node_id()], &[&chan_1_3.0.contents],
+ &chanmon_cfgs[3].keys_manager
+ ),
+ blinded_payment_path(payment_secret, 1, 1_0000_0000,
+ vec![nodes[2].node.get_our_node_id(), nodes[3].node.get_our_node_id()], &[&chan_2_3.0.contents],
+ &chanmon_cfgs[3].keys_manager
+ ),
+ ]
+ )
+ .with_bolt12_features(channelmanager::provided_bolt12_invoice_features(&UserConfig::default()))
+ .unwrap();
+ RouteParameters::from_payment_params_and_value(pay_params, amt_msat)
+ };
+
+ let payment_hash = nodes[0].node.send_spontaneous_payment_with_retry(Some(keysend_preimage), RecipientOnionFields::spontaneous_empty(), PaymentId(keysend_preimage.0), route_params, Retry::Attempts(0)).unwrap();
+ check_added_monitors!(nodes[0], 2);
+
+ let expected_route: &[&[&Node]] = &[&[&nodes[1], &nodes[3]], &[&nodes[2], &nodes[3]]];
+ let mut events = nodes[0].node.get_and_clear_pending_msg_events();
+ assert_eq!(events.len(), 2);
+
+ let ev = remove_first_msg_event_to_node(&nodes[1].node.get_our_node_id(), &mut events);
+ pass_along_path(&nodes[0], expected_route[0], amt_msat, payment_hash.clone(),
+ Some(payment_secret), ev.clone(), false, Some(keysend_preimage));
+
+ let ev = remove_first_msg_event_to_node(&nodes[2].node.get_our_node_id(), &mut events);
+ pass_along_path(&nodes[0], expected_route[1], amt_msat, payment_hash.clone(),
+ Some(payment_secret), ev.clone(), true, Some(keysend_preimage));
+ claim_payment_along_route(&nodes[0], expected_route, false, keysend_preimage);
+}
projects / rust-lightning / blobdiff