From: Jeffrey Czyz Date: Thu, 10 Jun 2021 22:49:14 +0000 (-0700) Subject: Accept multi-hop route hints in get_route X-Git-Tag: v0.0.98~1^2~1 X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=200f3d155ce883bbc787fa35933448e4df8cf132;p=rust-lightning Accept multi-hop route hints in get_route Lightning invoices allow for zero or more multi-hop route hints. Update get_route's interface to accept such hints, although only the last hop from each is used for the time being. Moves RouteHint from lightning-invoice crate to lightning crate. Adds a PrivateRoute wrapper around RouteHint for use in lightning-invoice. --- diff --git a/fuzz/src/router.rs b/fuzz/src/router.rs index d0f7b1321..e8e025e24 100644 --- a/fuzz/src/router.rs +++ b/fuzz/src/router.rs @@ -16,7 +16,7 @@ use lightning::chain::transaction::OutPoint; use lightning::ln::channelmanager::ChannelDetails; use lightning::ln::features::InitFeatures; use lightning::ln::msgs; -use lightning::routing::router::{get_route, RouteHintHop}; +use lightning::routing::router::{get_route, RouteHint, RouteHintHop}; use lightning::util::logger::Logger; use lightning::util::ser::Readable; use lightning::routing::network_graph::{NetworkGraph, RoutingFees}; @@ -225,13 +225,13 @@ pub fn do_test(data: &[u8], out: Out) { Some(&first_hops_vec[..]) }, }; - let mut last_hops_vec = Vec::new(); + let mut last_hops = Vec::new(); { let count = get_slice!(1)[0]; for _ in 0..count { scid += 1; let rnid = node_pks.iter().skip(slice_to_be16(get_slice!(2))as usize % node_pks.len()).next().unwrap(); - last_hops_vec.push(RouteHintHop { + last_hops.push(RouteHint(vec![RouteHintHop { src_node_id: *rnid, short_channel_id: scid, fees: RoutingFees { @@ -241,10 +241,9 @@ pub fn do_test(data: &[u8], out: Out) { cltv_expiry_delta: slice_to_be16(get_slice!(2)), htlc_minimum_msat: Some(slice_to_be64(get_slice!(8))), htlc_maximum_msat: None, - }); + }])); } } - let last_hops = &last_hops_vec[..]; for target in node_pks.iter() { let _ = get_route(&our_pubkey, &net_graph, target, None, first_hops.map(|c| c.iter().collect::>()).as_ref().map(|a| a.as_slice()), diff --git a/lightning-invoice/src/de.rs b/lightning-invoice/src/de.rs index 47557665b..9c5120e4a 100644 --- a/lightning-invoice/src/de.rs +++ b/lightning-invoice/src/de.rs @@ -12,7 +12,7 @@ use bitcoin_hashes::Hash; use bitcoin_hashes::sha256; use lightning::ln::PaymentSecret; use lightning::routing::network_graph::RoutingFees; -use lightning::routing::router::RouteHintHop; +use lightning::routing::router::{RouteHint, RouteHintHop}; use num_traits::{CheckedAdd, CheckedMul}; @@ -21,7 +21,7 @@ use secp256k1::recovery::{RecoveryId, RecoverableSignature}; use secp256k1::key::PublicKey; use super::{Invoice, Sha256, TaggedField, ExpiryTime, MinFinalCltvExpiry, Fallback, PayeePubKey, InvoiceSignature, PositiveTimestamp, - SemanticError, RouteHint, Description, RawTaggedField, Currency, RawHrp, SiPrefix, RawInvoice, constants, SignedRawInvoice, + SemanticError, PrivateRoute, Description, RawTaggedField, Currency, RawHrp, SiPrefix, RawInvoice, constants, SignedRawInvoice, RawDataPart, CreationError, InvoiceFeatures}; use self::hrp_sm::parse_hrp; @@ -433,8 +433,8 @@ impl FromBase32 for TaggedField { Ok(TaggedField::MinFinalCltvExpiry(MinFinalCltvExpiry::from_base32(field_data)?)), constants::TAG_FALLBACK => Ok(TaggedField::Fallback(Fallback::from_base32(field_data)?)), - constants::TAG_ROUTE => - Ok(TaggedField::Route(RouteHint::from_base32(field_data)?)), + constants::TAG_PRIVATE_ROUTE => + Ok(TaggedField::PrivateRoute(PrivateRoute::from_base32(field_data)?)), constants::TAG_PAYMENT_SECRET => Ok(TaggedField::PaymentSecret(PaymentSecret::from_base32(field_data)?)), constants::TAG_FEATURES => @@ -558,10 +558,10 @@ impl FromBase32 for Fallback { } } -impl FromBase32 for RouteHint { +impl FromBase32 for PrivateRoute { type Err = ParseError; - fn from_base32(field_data: &[u5]) -> Result { + fn from_base32(field_data: &[u5]) -> Result { let bytes = Vec::::from_base32(field_data)?; if bytes.len() % 51 != 0 { @@ -593,7 +593,7 @@ impl FromBase32 for RouteHint { route_hops.push(hop); } - Ok(RouteHint(route_hops)) + Ok(PrivateRoute(RouteHint(route_hops))) } } @@ -930,8 +930,8 @@ mod test { #[test] fn test_parse_route() { use lightning::routing::network_graph::RoutingFees; - use lightning::routing::router::RouteHintHop; - use ::RouteHint; + use lightning::routing::router::{RouteHint, RouteHintHop}; + use ::PrivateRoute; use bech32::FromBase32; use de::parse_int_be; @@ -976,10 +976,10 @@ mod test { htlc_maximum_msat: None }); - assert_eq!(RouteHint::from_base32(&input), Ok(RouteHint(expected))); + assert_eq!(PrivateRoute::from_base32(&input), Ok(PrivateRoute(RouteHint(expected)))); assert_eq!( - RouteHint::from_base32(&[u5::try_from_u8(0).unwrap(); 40][..]), + PrivateRoute::from_base32(&[u5::try_from_u8(0).unwrap(); 40][..]), Err(ParseError::UnexpectedEndOfTaggedFields) ); } diff --git a/lightning-invoice/src/lib.rs b/lightning-invoice/src/lib.rs index 1d5bb4ffb..19d53b545 100644 --- a/lightning-invoice/src/lib.rs +++ b/lightning-invoice/src/lib.rs @@ -30,7 +30,7 @@ use lightning::ln::PaymentSecret; use lightning::ln::features::InvoiceFeatures; #[cfg(any(doc, test))] use lightning::routing::network_graph::RoutingFees; -use lightning::routing::router::RouteHintHop; +use lightning::routing::router::RouteHint; use secp256k1::key::PublicKey; use secp256k1::{Message, Secp256k1}; @@ -362,7 +362,7 @@ pub enum TaggedField { ExpiryTime(ExpiryTime), MinFinalCltvExpiry(MinFinalCltvExpiry), Fallback(Fallback), - Route(RouteHint), + PrivateRoute(PrivateRoute), PaymentSecret(PaymentSecret), Features(InvoiceFeatures), } @@ -419,7 +419,7 @@ pub struct InvoiceSignature(pub RecoverableSignature); /// The encoded route has to be <1024 5bit characters long (<=639 bytes or <=12 hops) /// #[derive(Eq, PartialEq, Debug, Clone)] -pub struct RouteHint(Vec); +pub struct PrivateRoute(RouteHint); /// Tag constants as specified in BOLT11 #[allow(missing_docs)] @@ -431,7 +431,7 @@ pub mod constants { pub const TAG_EXPIRY_TIME: u8 = 6; pub const TAG_MIN_FINAL_CLTV_EXPIRY: u8 = 24; pub const TAG_FALLBACK: u8 = 9; - pub const TAG_ROUTE: u8 = 3; + pub const TAG_PRIVATE_ROUTE: u8 = 3; pub const TAG_PAYMENT_SECRET: u8 = 16; pub const TAG_FEATURES: u8 = 5; } @@ -509,9 +509,9 @@ impl InvoiceBui } /// Adds a private route. - pub fn route(mut self, route: Vec) -> Self { - match RouteHint::new(route) { - Ok(r) => self.tagged_fields.push(TaggedField::Route(r)), + pub fn private_route(mut self, hint: RouteHint) -> Self { + match PrivateRoute::new(hint) { + Ok(r) => self.tagged_fields.push(TaggedField::PrivateRoute(r)), Err(e) => self.error = Some(e), } self @@ -913,8 +913,8 @@ impl RawInvoice { find_all_extract!(self.known_tagged_fields(), TaggedField::Fallback(ref x), x).collect() } - pub fn routes(&self) -> Vec<&RouteHint> { - find_all_extract!(self.known_tagged_fields(), TaggedField::Route(ref x), x).collect() + pub fn private_routes(&self) -> Vec<&PrivateRoute> { + find_all_extract!(self.known_tagged_fields(), TaggedField::PrivateRoute(ref x), x).collect() } pub fn amount_pico_btc(&self) -> Option { @@ -1163,8 +1163,15 @@ impl Invoice { } /// Returns a list of all routes included in the invoice - pub fn routes(&self) -> Vec<&RouteHint> { - self.signed_invoice.routes() + pub fn private_routes(&self) -> Vec<&PrivateRoute> { + self.signed_invoice.private_routes() + } + + /// Returns a list of all routes included in the invoice as the underlying hints + pub fn route_hints(&self) -> Vec<&RouteHint> { + find_all_extract!( + self.signed_invoice.known_tagged_fields(), TaggedField::PrivateRoute(ref x), x + ).map(|route| &**route).collect() } /// Returns the currency for which the invoice was issued @@ -1195,7 +1202,7 @@ impl TaggedField { TaggedField::ExpiryTime(_) => constants::TAG_EXPIRY_TIME, TaggedField::MinFinalCltvExpiry(_) => constants::TAG_MIN_FINAL_CLTV_EXPIRY, TaggedField::Fallback(_) => constants::TAG_FALLBACK, - TaggedField::Route(_) => constants::TAG_ROUTE, + TaggedField::PrivateRoute(_) => constants::TAG_PRIVATE_ROUTE, TaggedField::PaymentSecret(_) => constants::TAG_PAYMENT_SECRET, TaggedField::Features(_) => constants::TAG_FEATURES, }; @@ -1286,32 +1293,32 @@ impl ExpiryTime { } } -impl RouteHint { - /// Create a new (partial) route from a list of hops - pub fn new(hops: Vec) -> Result { - if hops.len() <= 12 { - Ok(RouteHint(hops)) +impl PrivateRoute { + /// Creates a new (partial) route from a list of hops + pub fn new(hops: RouteHint) -> Result { + if hops.0.len() <= 12 { + Ok(PrivateRoute(hops)) } else { Err(CreationError::RouteTooLong) } } - /// Returrn the underlying vector of hops - pub fn into_inner(self) -> Vec { + /// Returns the underlying list of hops + pub fn into_inner(self) -> RouteHint { self.0 } } -impl Into> for RouteHint { - fn into(self) -> Vec { +impl Into for PrivateRoute { + fn into(self) -> RouteHint { self.into_inner() } } -impl Deref for RouteHint { - type Target = Vec; +impl Deref for PrivateRoute { + type Target = RouteHint; - fn deref(&self) -> &Vec { + fn deref(&self) -> &RouteHint { &self.0 } } @@ -1670,6 +1677,7 @@ mod test { #[test] fn test_builder_fail() { use ::*; + use lightning::routing::router::RouteHintHop; use std::iter::FromIterator; use secp256k1::key::PublicKey; @@ -1704,10 +1712,10 @@ mod test { htlc_minimum_msat: None, htlc_maximum_msat: None, }; - let too_long_route = vec![route_hop; 13]; + let too_long_route = RouteHint(vec![route_hop; 13]); let long_route_res = builder.clone() .description("Test".into()) - .route(too_long_route) + .private_route(too_long_route) .build_raw(); assert_eq!(long_route_res, Err(CreationError::RouteTooLong)); @@ -1722,6 +1730,7 @@ mod test { #[test] fn test_builder_ok() { use ::*; + use lightning::routing::router::RouteHintHop; use secp256k1::Secp256k1; use secp256k1::key::{SecretKey, PublicKey}; use std::time::{UNIX_EPOCH, Duration}; @@ -1737,7 +1746,7 @@ mod test { ).unwrap(); let public_key = PublicKey::from_secret_key(&secp_ctx, &private_key); - let route_1 = vec![ + let route_1 = RouteHint(vec![ RouteHintHop { src_node_id: public_key.clone(), short_channel_id: de::parse_int_be(&[123; 8], 256).expect("short chan ID slice too big?"), @@ -1760,9 +1769,9 @@ mod test { htlc_minimum_msat: None, htlc_maximum_msat: None, } - ]; + ]); - let route_2 = vec![ + let route_2 = RouteHint(vec![ RouteHintHop { src_node_id: public_key.clone(), short_channel_id: 0, @@ -1785,7 +1794,7 @@ mod test { htlc_minimum_msat: None, htlc_maximum_msat: None, } - ]; + ]); let builder = InvoiceBuilder::new(Currency::BitcoinTestnet) .amount_pico_btc(123) @@ -1794,8 +1803,8 @@ mod test { .expiry_time(Duration::from_secs(54321)) .min_final_cltv_expiry(144) .fallback(Fallback::PubKeyHash([0;20])) - .route(route_1.clone()) - .route(route_2.clone()) + .private_route(route_1.clone()) + .private_route(route_2.clone()) .description_hash(sha256::Hash::from_slice(&[3;32][..]).unwrap()) .payment_hash(sha256::Hash::from_slice(&[21;32][..]).unwrap()) .payment_secret(PaymentSecret([42; 32])) @@ -1818,7 +1827,7 @@ mod test { assert_eq!(invoice.expiry_time(), Duration::from_secs(54321)); assert_eq!(invoice.min_final_cltv_expiry(), 144); assert_eq!(invoice.fallbacks(), vec![&Fallback::PubKeyHash([0;20])]); - assert_eq!(invoice.routes(), vec![&RouteHint(route_1), &RouteHint(route_2)]); + assert_eq!(invoice.private_routes(), vec![&PrivateRoute(route_1), &PrivateRoute(route_2)]); assert_eq!( invoice.description(), InvoiceDescription::Hash(&Sha256(sha256::Hash::from_slice(&[3;32][..]).unwrap())) diff --git a/lightning-invoice/src/ser.rs b/lightning-invoice/src/ser.rs index 885ea2684..5c7b4aa89 100644 --- a/lightning-invoice/src/ser.rs +++ b/lightning-invoice/src/ser.rs @@ -3,7 +3,7 @@ use std::fmt::{Display, Formatter}; use bech32::{ToBase32, u5, WriteBase32, Base32Len}; use super::{Invoice, Sha256, TaggedField, ExpiryTime, MinFinalCltvExpiry, Fallback, PayeePubKey, InvoiceSignature, PositiveTimestamp, - RouteHint, Description, RawTaggedField, Currency, RawHrp, SiPrefix, constants, SignedRawInvoice, RawDataPart}; + PrivateRoute, Description, RawTaggedField, Currency, RawHrp, SiPrefix, constants, SignedRawInvoice, RawDataPart}; /// Converts a stream of bytes written to it to base32. On finalization the according padding will /// be applied. That means the results of writing two data blocks with one or two `BytesToBase32` @@ -356,11 +356,11 @@ impl Base32Len for Fallback { } } -impl ToBase32 for RouteHint { +impl ToBase32 for PrivateRoute { fn write_base32(&self, writer: &mut W) -> Result<(), ::Err> { let mut converter = BytesToBase32::new(writer); - for hop in self.iter() { + for hop in (self.0).0.iter() { converter.append(&hop.src_node_id.serialize()[..])?; let short_channel_id = try_stretch( encode_int_be_base256(hop.short_channel_id), @@ -392,9 +392,9 @@ impl ToBase32 for RouteHint { } } -impl Base32Len for RouteHint { +impl Base32Len for PrivateRoute { fn base32_len(&self) -> usize { - bytes_size_to_base32_size(self.0.len() * 51) + bytes_size_to_base32_size((self.0).0.len() * 51) } } @@ -439,8 +439,8 @@ impl ToBase32 for TaggedField { TaggedField::Fallback(ref fallback_address) => { write_tagged_field(writer, constants::TAG_FALLBACK, fallback_address) }, - TaggedField::Route(ref route_hops) => { - write_tagged_field(writer, constants::TAG_ROUTE, route_hops) + TaggedField::PrivateRoute(ref route_hops) => { + write_tagged_field(writer, constants::TAG_PRIVATE_ROUTE, route_hops) }, TaggedField::PaymentSecret(ref payment_secret) => { write_tagged_field(writer, constants::TAG_PAYMENT_SECRET, payment_secret) diff --git a/lightning-invoice/src/utils.rs b/lightning-invoice/src/utils.rs index b75a215ee..9d41b928d 100644 --- a/lightning-invoice/src/utils.rs +++ b/lightning-invoice/src/utils.rs @@ -7,7 +7,7 @@ use lightning::chain::chaininterface::{BroadcasterInterface, FeeEstimator}; use lightning::chain::keysinterface::{Sign, KeysInterface}; use lightning::ln::channelmanager::{ChannelManager, MIN_FINAL_CLTV_EXPIRY}; use lightning::routing::network_graph::RoutingFees; -use lightning::routing::router::RouteHintHop; +use lightning::routing::router::{RouteHint, RouteHintHop}; use lightning::util::logger::Logger; use std::convert::TryInto; use std::ops::Deref; @@ -40,7 +40,7 @@ where Some(info) => info, None => continue, }; - route_hints.push(vec![RouteHintHop { + route_hints.push(RouteHint(vec![RouteHintHop { src_node_id: channel.remote_network_id, short_channel_id, fees: RoutingFees { @@ -50,7 +50,7 @@ where cltv_expiry_delta: forwarding_info.cltv_expiry_delta, htlc_minimum_msat: None, htlc_maximum_msat: None, - }]); + }])); } let (payment_hash, payment_secret) = channelmanager.create_inbound_payment( @@ -70,8 +70,8 @@ where if let Some(amt) = amt_msat { invoice = invoice.amount_pico_btc(amt * 10); } - for hint in route_hints.drain(..) { - invoice = invoice.route(hint); + for hint in route_hints { + invoice = invoice.private_route(hint); } let raw_invoice = match invoice.build_raw() { @@ -112,14 +112,9 @@ mod test { assert_eq!(invoice.min_final_cltv_expiry(), MIN_FINAL_CLTV_EXPIRY as u64); assert_eq!(invoice.description(), InvoiceDescription::Direct(&Description("test".to_string()))); - let mut route_hints = invoice.routes().clone(); - let mut last_hops = Vec::new(); - for hint in route_hints.drain(..) { - last_hops.push(hint[hint.len() - 1].clone()); - } let amt_msat = invoice.amount_pico_btc().unwrap() / 10; - let first_hops = nodes[0].node.list_usable_channels(); + let last_hops = invoice.route_hints(); let network_graph = nodes[0].net_graph_msg_handler.network_graph.read().unwrap(); let logger = test_utils::TestLogger::new(); let route = router::get_route( @@ -128,7 +123,7 @@ mod test { &invoice.recover_payee_pub_key(), Some(invoice.features().unwrap().clone()), Some(&first_hops.iter().collect::>()), - &last_hops.iter().collect::>(), + &last_hops, amt_msat, invoice.min_final_cltv_expiry() as u32, &logger, diff --git a/lightning/src/routing/router.rs b/lightning/src/routing/router.rs index 52ac9b775..9f4b8ac35 100644 --- a/lightning/src/routing/router.rs +++ b/lightning/src/routing/router.rs @@ -107,7 +107,11 @@ impl Readable for Route { } } -/// A channel descriptor which provides a last-hop route to get_route +/// A list of hops along a payment path terminating with a channel to the recipient. +#[derive(Eq, PartialEq, Debug, Clone)] +pub struct RouteHint(pub Vec); + +/// A channel descriptor for a hop along a payment path. #[derive(Eq, PartialEq, Debug, Clone)] pub struct RouteHintHop { /// The node_id of the non-target end of the route @@ -329,8 +333,8 @@ fn compute_fees(amount_msat: u64, channel_fees: RoutingFees) -> Option { /// If the payee provided features in their invoice, they should be provided via payee_features. /// Without this, MPP will only be used if the payee's features are available in the network graph. /// -/// Extra routing hops between known nodes and the target will be used if they are included in -/// last_hops. +/// Private routing paths between a public node and the target may be included in `last_hops`. +/// Currently, only the last hop in each path is considered. /// /// If some channels aren't announced, it may be useful to fill in a first_hops with the /// results from a local ChannelManager::list_usable_channels() call. If it is filled in, our @@ -344,7 +348,7 @@ fn compute_fees(amount_msat: u64, channel_fees: RoutingFees) -> Option { /// equal), however the enabled/disabled bit on such channels as well as the /// htlc_minimum_msat/htlc_maximum_msat *are* checked as they may change based on the receiving node. pub fn get_route(our_node_id: &PublicKey, network: &NetworkGraph, payee: &PublicKey, payee_features: Option, first_hops: Option<&[&ChannelDetails]>, - last_hops: &[&RouteHintHop], final_value_msat: u64, final_cltv: u32, logger: L) -> Result where L::Target: Logger { + last_hops: &[&RouteHint], final_value_msat: u64, final_cltv: u32, logger: L) -> Result where L::Target: Logger { // TODO: Obviously *only* using total fee cost sucks. We should consider weighting by // uptime/success in using a node in the past. if *payee == *our_node_id { @@ -359,7 +363,8 @@ pub fn get_route(our_node_id: &PublicKey, network: &NetworkGraph, paye return Err(LightningError{err: "Cannot send a payment of 0 msat".to_owned(), action: ErrorAction::IgnoreError}); } - for last_hop in last_hops { + let last_hops = last_hops.iter().filter_map(|hops| hops.0.last()).collect::>(); + for last_hop in last_hops.iter() { if last_hop.src_node_id == *payee { return Err(LightningError{err: "Last hop cannot have a payee as a source.".to_owned(), action: ErrorAction::IgnoreError}); } @@ -1154,7 +1159,7 @@ pub fn get_route(our_node_id: &PublicKey, network: &NetworkGraph, paye #[cfg(test)] mod tests { - use routing::router::{get_route, RouteHintHop, RoutingFees}; + use routing::router::{get_route, RouteHint, RouteHintHop, RoutingFees}; use routing::network_graph::{NetworkGraph, NetGraphMsgHandler}; use chain::transaction::OutPoint; use ln::features::{ChannelFeatures, InitFeatures, InvoiceFeatures, NodeFeatures}; @@ -2085,19 +2090,19 @@ mod tests { assert_eq!(route.paths[0][1].channel_features.le_flags(), &id_to_feature_flags(13)); } - fn last_hops(nodes: &Vec) -> Vec { + fn last_hops(nodes: &Vec) -> Vec { let zero_fees = RoutingFees { base_msat: 0, proportional_millionths: 0, }; - vec!(RouteHintHop { + vec![RouteHint(vec![RouteHintHop { src_node_id: nodes[3].clone(), short_channel_id: 8, fees: zero_fees, cltv_expiry_delta: (8 << 8) | 1, htlc_minimum_msat: None, htlc_maximum_msat: None, - }, RouteHintHop { + }]), RouteHint(vec![RouteHintHop { src_node_id: nodes[4].clone(), short_channel_id: 9, fees: RoutingFees { @@ -2107,14 +2112,14 @@ mod tests { cltv_expiry_delta: (9 << 8) | 1, htlc_minimum_msat: None, htlc_maximum_msat: None, - }, RouteHintHop { + }]), RouteHint(vec![RouteHintHop { src_node_id: nodes[5].clone(), short_channel_id: 10, fees: zero_fees, cltv_expiry_delta: (10 << 8) | 1, htlc_minimum_msat: None, htlc_maximum_msat: None, - }) + }])] } #[test] @@ -2124,8 +2129,8 @@ mod tests { // Simple test across 2, 3, 5, and 4 via a last_hop channel - // First check that lst hop can't have its source as the payee. - let invalid_last_hop = RouteHintHop { + // First check that last hop can't have its source as the payee. + let invalid_last_hop = RouteHint(vec![RouteHintHop { src_node_id: nodes[6], short_channel_id: 8, fees: RoutingFees { @@ -2135,7 +2140,7 @@ mod tests { cltv_expiry_delta: (8 << 8) | 1, htlc_minimum_msat: None, htlc_maximum_msat: None, - }; + }]); let mut invalid_last_hops = last_hops(&nodes); invalid_last_hops.push(invalid_last_hop); @@ -2224,7 +2229,7 @@ mod tests { assert_eq!(route.paths[0][1].node_features.le_flags(), &Vec::::new()); // We dont pass flags in from invoices yet assert_eq!(route.paths[0][1].channel_features.le_flags(), &Vec::::new()); // We can't learn any flags from invoices, sadly - last_hops[0].fees.base_msat = 1000; + last_hops[0].0[0].fees.base_msat = 1000; // Revert to via 6 as the fee on 8 goes up let route = get_route(&our_id, &net_graph_msg_handler.network_graph.read().unwrap(), &nodes[6], None, None, &last_hops.iter().collect::>(), 100, 42, Arc::clone(&logger)).unwrap(); @@ -2312,7 +2317,7 @@ mod tests { let target_node_id = PublicKey::from_secret_key(&Secp256k1::new(), &SecretKey::from_slice(&hex::decode(format!("{:02}", 43).repeat(32)).unwrap()[..]).unwrap()); // If we specify a channel to a middle hop, that overrides our local channel view and that gets used - let last_hops = vec![RouteHintHop { + let last_hops = RouteHint(vec![RouteHintHop { src_node_id: middle_node_id, short_channel_id: 8, fees: RoutingFees { @@ -2322,7 +2327,7 @@ mod tests { cltv_expiry_delta: (8 << 8) | 1, htlc_minimum_msat: None, htlc_maximum_msat: None, - }]; + }]); let our_chans = vec![channelmanager::ChannelDetails { channel_id: [0; 32], funding_txo: Some(OutPoint { txid: bitcoin::Txid::from_slice(&[0; 32]).unwrap(), index: 0 }), @@ -2337,7 +2342,7 @@ mod tests { is_usable: true, is_public: true, counterparty_forwarding_info: None, }]; - let route = get_route(&source_node_id, &NetworkGraph::new(genesis_block(Network::Testnet).header.block_hash()), &target_node_id, None, Some(&our_chans.iter().collect::>()), &last_hops.iter().collect::>(), 100, 42, Arc::new(test_utils::TestLogger::new())).unwrap(); + let route = get_route(&source_node_id, &NetworkGraph::new(genesis_block(Network::Testnet).header.block_hash()), &target_node_id, None, Some(&our_chans.iter().collect::>()), &vec![&last_hops], 100, 42, Arc::new(test_utils::TestLogger::new())).unwrap(); assert_eq!(route.paths[0].len(), 2);