Merge pull request #2258 from valentinewallace/2023-04-blinded-pathfi…

…nding-groundwork-2

Prefactor `PaymentParameters` for blinded recipients

fuzz/src/router.rs

@@ -300,7 +300,7 @@ pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
 					let final_cltv_expiry_delta = slice_to_be32(get_slice!(4));
 					let route_params = RouteParameters {
 						payment_params: PaymentParameters::from_node_id(*target, final_cltv_expiry_delta)
-							.with_route_hints(last_hops.clone()),
+							.with_route_hints(last_hops.clone()).unwrap(),
 						final_value_msat,
 					};
 					let _ = find_route(&our_pubkey, &route_params, &net_graph,

lightning-invoice/src/payment.rs

@@ -152,9 +152,9 @@ fn pay_invoice_using_amount<P: Deref>(
 	let mut payment_params = PaymentParameters::from_node_id(invoice.recover_payee_pub_key(),
 		invoice.min_final_cltv_expiry_delta() as u32)
 		.with_expiry_time(expiry_time_from_unix_epoch(invoice).as_secs())
-		.with_route_hints(invoice.route_hints());
+		.with_route_hints(invoice.route_hints()).unwrap();
 	if let Some(features) = invoice.features() {
-		payment_params = payment_params.with_features(features.clone());
+		payment_params = payment_params.with_bolt11_features(features.clone()).unwrap();
 	}
 	let route_params = RouteParameters {
 		payment_params,

lightning-invoice/src/utils.rs

@@ -838,8 +838,8 @@ mod test {
 
 		let payment_params = PaymentParameters::from_node_id(invoice.recover_payee_pub_key(),
 				invoice.min_final_cltv_expiry_delta() as u32)
-			.with_features(invoice.features().unwrap().clone())
-			.with_route_hints(invoice.route_hints());
+			.with_bolt11_features(invoice.features().unwrap().clone()).unwrap()
+			.with_route_hints(invoice.route_hints()).unwrap();
 		let route_params = RouteParameters {
 			payment_params,
 			final_value_msat: invoice.amount_milli_satoshis().unwrap(),
@@ -1294,8 +1294,8 @@ mod test {
 
 		let payment_params = PaymentParameters::from_node_id(invoice.recover_payee_pub_key(),
 				invoice.min_final_cltv_expiry_delta() as u32)
-			.with_features(invoice.features().unwrap().clone())
-			.with_route_hints(invoice.route_hints());
+			.with_bolt11_features(invoice.features().unwrap().clone()).unwrap()
+			.with_route_hints(invoice.route_hints()).unwrap();
 		let params = RouteParameters {
 			payment_params,
 			final_value_msat: invoice.amount_milli_satoshis().unwrap(),

lightning/src/ln/channelmanager.rs

@@ -45,7 +45,7 @@ use crate::ln::features::{ChannelFeatures, ChannelTypeFeatures, InitFeatures, No
 #[cfg(any(feature = "_test_utils", test))]
 use crate::ln::features::InvoiceFeatures;
 use crate::routing::gossip::NetworkGraph;
-use crate::routing::router::{BlindedTail, DefaultRouter, InFlightHtlcs, Path, PaymentParameters, Route, RouteHop, RouteParameters, Router};
+use crate::routing::router::{BlindedTail, DefaultRouter, InFlightHtlcs, Path, Payee, PaymentParameters, Route, RouteHop, RouteParameters, Router};
 use crate::routing::scoring::ProbabilisticScorer;
 use crate::ln::msgs;
 use crate::ln::onion_utils;
@@ -7251,8 +7251,10 @@ impl Readable for HTLCSource {
 					return Err(DecodeError::InvalidValue);
 				}
 				if let Some(params) = payment_params.as_mut() {
-					if params.final_cltv_expiry_delta == 0 {
-						params.final_cltv_expiry_delta = path.final_cltv_expiry_delta().ok_or(DecodeError::InvalidValue)?;
+					if let Payee::Clear { ref mut final_cltv_expiry_delta, .. } = params.payee {
+						if final_cltv_expiry_delta == &0 {
+							*final_cltv_expiry_delta = path.final_cltv_expiry_delta().ok_or(DecodeError::InvalidValue)?;
+						}
 					}
 				}
 				Ok(HTLCSource::OutboundRoute {
@@ -9428,7 +9430,7 @@ pub mod bench {
 		macro_rules! send_payment {
 			($node_a: expr, $node_b: expr) => {
 				let payment_params = PaymentParameters::from_node_id($node_b.get_our_node_id(), TEST_FINAL_CLTV)
-					.with_features($node_b.invoice_features());
+					.with_bolt11_features($node_b.invoice_features()).unwrap();
 				let mut payment_preimage = PaymentPreimage([0; 32]);
 				payment_preimage.0[0..8].copy_from_slice(&payment_count.to_le_bytes());
 				payment_count += 1;

lightning/src/ln/features.rs

@@ -532,6 +532,14 @@ impl InvoiceFeatures {
 	}
 }
 
+impl Bolt12InvoiceFeatures {
+	/// Converts `Bolt12InvoiceFeatures` to `Features<C>`. Only known `Bolt12InvoiceFeatures` relevant
+	/// to context `C` are included in the result.
+	pub(crate) fn to_context<C: sealed::Context>(&self) -> Features<C> {
+		self.to_context_internal()
+	}
+}
+
 impl ChannelTypeFeatures {
 	// Maps the relevant `InitFeatures` to `ChannelTypeFeatures`. Any unknown features to
 	// `ChannelTypeFeatures` are not included in the result.
@@ -791,6 +799,7 @@ impl_feature_len_prefixed_write!(InitFeatures);
 impl_feature_len_prefixed_write!(ChannelFeatures);
 impl_feature_len_prefixed_write!(NodeFeatures);
 impl_feature_len_prefixed_write!(InvoiceFeatures);
+impl_feature_len_prefixed_write!(Bolt12InvoiceFeatures);
 impl_feature_len_prefixed_write!(BlindedHopFeatures);
 
 // Some features only appear inside of TLVs, so they don't have a length prefix when serialized.

lightning/src/ln/functional_test_utils.rs

@@ -1757,7 +1757,7 @@ macro_rules! get_route {
 macro_rules! get_route_and_payment_hash {
 	($send_node: expr, $recv_node: expr, $recv_value: expr) => {{
 		let payment_params = $crate::routing::router::PaymentParameters::from_node_id($recv_node.node.get_our_node_id(), TEST_FINAL_CLTV)
-			.with_features($recv_node.node.invoice_features());
+			.with_bolt11_features($recv_node.node.invoice_features()).unwrap();
 		$crate::get_route_and_payment_hash!($send_node, $recv_node, payment_params, $recv_value)
 	}};
 	($send_node: expr, $recv_node: expr, $payment_params: expr, $recv_value: expr) => {{
@@ -2306,7 +2306,7 @@ pub const TEST_FINAL_CLTV: u32 = 70;
 
 pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64) -> (PaymentPreimage, PaymentHash, PaymentSecret) {
 	let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV)
-		.with_features(expected_route.last().unwrap().node.invoice_features());
+		.with_bolt11_features(expected_route.last().unwrap().node.invoice_features()).unwrap();
 	let route = get_route(origin_node, &payment_params, recv_value).unwrap();
 	assert_eq!(route.paths.len(), 1);
 	assert_eq!(route.paths[0].hops.len(), expected_route.len());
@@ -2320,7 +2320,7 @@ pub fn route_payment<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route:
 
 pub fn route_over_limit<'a, 'b, 'c>(origin_node: &Node<'a, 'b, 'c>, expected_route: &[&Node<'a, 'b, 'c>], recv_value: u64)  {
 	let payment_params = PaymentParameters::from_node_id(expected_route.last().unwrap().node.get_our_node_id(), TEST_FINAL_CLTV)
-		.with_features(expected_route.last().unwrap().node.invoice_features());
+		.with_bolt11_features(expected_route.last().unwrap().node.invoice_features()).unwrap();
 	let network_graph = origin_node.network_graph.read_only();
 	let scorer = test_utils::TestScorer::new();
 	let seed = [0u8; 32];

lightning/src/ln/functional_tests.rs

@@ -1829,7 +1829,7 @@ fn test_channel_reserve_holding_cell_htlcs() {
 	// attempt to send amt_msat > their_max_htlc_value_in_flight_msat
 	{
 		let payment_params = PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV)
-			.with_features(nodes[2].node.invoice_features()).with_max_channel_saturation_power_of_half(0);
+			.with_bolt11_features(nodes[2].node.invoice_features()).unwrap().with_max_channel_saturation_power_of_half(0);
 		let (mut route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], payment_params, recv_value_0);
 		route.paths[0].hops.last_mut().unwrap().fee_msat += 1;
 		assert!(route.paths[0].hops.iter().rev().skip(1).all(|h| h.fee_msat == feemsat));
@@ -1856,7 +1856,7 @@ fn test_channel_reserve_holding_cell_htlcs() {
 		}
 
 		let payment_params = PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV)
-			.with_features(nodes[2].node.invoice_features()).with_max_channel_saturation_power_of_half(0);
+			.with_bolt11_features(nodes[2].node.invoice_features()).unwrap().with_max_channel_saturation_power_of_half(0);
 		let route = get_route!(nodes[0], payment_params, recv_value_0).unwrap();
 		let (payment_preimage, ..) = send_along_route(&nodes[0], route, &[&nodes[1], &nodes[2]], recv_value_0);
 		claim_payment(&nodes[0], &[&nodes[1], &nodes[2]], payment_preimage);
@@ -4795,7 +4795,7 @@ fn test_duplicate_payment_hash_one_failure_one_success() {
 	// script push size limit so that the below script length checks match
 	// ACCEPTED_HTLC_SCRIPT_WEIGHT.
 	let payment_params = PaymentParameters::from_node_id(nodes[3].node.get_our_node_id(), TEST_FINAL_CLTV - 40)
-		.with_features(nodes[3].node.invoice_features());
+		.with_bolt11_features(nodes[3].node.invoice_features()).unwrap();
 	let (route, _, _, _) = get_route_and_payment_hash!(nodes[0], nodes[3], payment_params, 800_000);
 	send_along_route_with_secret(&nodes[0], route, &[&[&nodes[1], &nodes[2], &nodes[3]]], 800_000, duplicate_payment_hash, payment_secret);
 
@@ -6101,7 +6101,7 @@ fn test_update_add_htlc_bolt2_sender_cltv_expiry_too_high() {
 	let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 0);
 
 	let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 0)
-		.with_features(nodes[1].node.invoice_features());
+		.with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
 	let (mut route, our_payment_hash, _, our_payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[1], payment_params, 100000000);
 	route.paths[0].hops.last_mut().unwrap().cltv_expiry_delta = 500000001;
 	unwrap_send_err!(nodes[0].node.send_payment_with_route(&route, our_payment_hash,
@@ -7043,7 +7043,7 @@ fn test_check_htlc_underpaying() {
 
 	let scorer = test_utils::TestScorer::new();
 	let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
-	let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV).with_features(nodes[1].node.invoice_features());
+	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();
 	let route = get_route(&nodes[0].node.get_our_node_id(), &payment_params, &nodes[0].network_graph.read_only(), None, 10_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
 	let (_, our_payment_hash, _) = get_payment_preimage_hash!(nodes[0]);
 	let our_payment_secret = nodes[1].node.create_inbound_payment_for_hash(our_payment_hash, Some(100_000), 7200, None).unwrap();
@@ -7189,7 +7189,7 @@ fn test_bump_penalty_txn_on_revoked_commitment() {
 
 	let payment_preimage = route_payment(&nodes[0], &vec!(&nodes[1])[..], 3000000).0;
 	let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 30)
-		.with_features(nodes[0].node.invoice_features());
+		.with_bolt11_features(nodes[0].node.invoice_features()).unwrap();
 	let (route,_, _, _) = get_route_and_payment_hash!(nodes[1], nodes[0], payment_params, 3000000);
 	send_along_route(&nodes[1], route, &vec!(&nodes[0])[..], 3000000);
 
@@ -7294,13 +7294,13 @@ fn test_bump_penalty_txn_on_revoked_htlcs() {
 
 	let chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 1000000, 59000000);
 	// Lock HTLC in both directions (using a slightly lower CLTV delay to provide timely RBF bumps)
-	let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 50).with_features(nodes[1].node.invoice_features());
+	let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), 50).with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
 	let scorer = test_utils::TestScorer::new();
 	let random_seed_bytes = chanmon_cfgs[1].keys_manager.get_secure_random_bytes();
 	let route = get_route(&nodes[0].node.get_our_node_id(), &payment_params, &nodes[0].network_graph.read_only(), None,
 		3_000_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
 	let payment_preimage = send_along_route(&nodes[0], route, &[&nodes[1]], 3_000_000).0;
-	let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 50).with_features(nodes[0].node.invoice_features());
+	let payment_params = PaymentParameters::from_node_id(nodes[0].node.get_our_node_id(), 50).with_bolt11_features(nodes[0].node.invoice_features()).unwrap();
 	let route = get_route(&nodes[1].node.get_our_node_id(), &payment_params, &nodes[1].network_graph.read_only(), None,
 		3_000_000, nodes[0].logger, &scorer, &random_seed_bytes).unwrap();
 	send_along_route(&nodes[1], route, &[&nodes[0]], 3_000_000);
@@ -9300,7 +9300,7 @@ fn do_test_dup_htlc_second_rejected(test_for_second_fail_panic: bool) {
 	let _chan = create_announced_chan_between_nodes_with_value(&nodes, 0, 1, 100000, 10001);
 
 	let payment_params = PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV)
-		.with_features(nodes[1].node.invoice_features());
+		.with_bolt11_features(nodes[1].node.invoice_features()).unwrap();
 	let route = get_route!(nodes[0], payment_params, 10_000).unwrap();
 
 	let (our_payment_preimage, our_payment_hash, our_payment_secret) = get_payment_preimage_hash!(&nodes[1]);
@@ -9409,7 +9409,7 @@ fn test_inconsistent_mpp_params() {
 	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_features(nodes[3].node.invoice_features());
+		.with_bolt11_features(nodes[3].node.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, _| {

lightning/src/ln/onion_route_tests.rs

@@ -714,8 +714,8 @@ fn do_test_onion_failure_stale_channel_update(announced_channel: bool) {
 			htlc_minimum_msat: None,
 		}])];
 		let payment_params = PaymentParameters::from_node_id(*channel_to_update_counterparty, TEST_FINAL_CLTV)
-			.with_features(nodes[2].node.invoice_features())
-			.with_route_hints(hop_hints);
+			.with_bolt11_features(nodes[2].node.invoice_features()).unwrap()
+			.with_route_hints(hop_hints).unwrap();
 		get_route_and_payment_hash!(nodes[0], nodes[2], payment_params, PAYMENT_AMT)
 	};
 	send_along_route_with_secret(&nodes[0], route.clone(), &[&[&nodes[1], &nodes[2]]], PAYMENT_AMT,
@@ -861,7 +861,7 @@ fn test_always_create_tlv_format_onion_payloads() {
 	create_announced_chan_between_nodes(&nodes, 1, 2);
 
 	let payment_params = PaymentParameters::from_node_id(nodes[2].node.get_our_node_id(), TEST_FINAL_CLTV)
-		.with_features(InvoiceFeatures::empty());
+		.with_bolt11_features(InvoiceFeatures::empty()).unwrap();
 	let (route, _payment_hash, _payment_preimage, _payment_secret) = get_route_and_payment_hash!(nodes[0], nodes[2], payment_params, 40000);
 
 	let hops = &route.paths[0].hops;
@@ -963,7 +963,7 @@ macro_rules! get_phantom_route {
 		let phantom_pubkey = $nodes[1].keys_manager.get_node_id(Recipient::PhantomNode).unwrap();
 		let phantom_route_hint = $nodes[1].node.get_phantom_route_hints();
 		let payment_params = PaymentParameters::from_node_id(phantom_pubkey, TEST_FINAL_CLTV)
-			.with_features($nodes[1].node.invoice_features())
+			.with_bolt11_features($nodes[1].node.invoice_features()).unwrap()
 			.with_route_hints(vec![RouteHint(vec![
 					RouteHintHop {
 						src_node_id: $nodes[0].node.get_our_node_id(),
@@ -987,7 +987,7 @@ macro_rules! get_phantom_route {
 						htlc_minimum_msat: None,
 						htlc_maximum_msat: None,
 					}
-		])]);
+		])]).unwrap();
 		let scorer = test_utils::TestScorer::new();
 		let network_graph = $nodes[0].network_graph.read_only();
 		(get_route(