Merge pull request #2726 from shaavan/issue2712

[rust-lightning] / fuzz / src / router.rs

diff --git a/fuzz/src/router.rs b/fuzz/src/router.rs
index abc6572d85ecc13bd39364d095025bf2736cd70d..c9ceea3d0b3d196169d47a996f4e4a47237098aa 100644 (file)
--- a/fuzz/src/router.rs
+++ b/fuzz/src/router.rs
@@ -7,13 +7,17 @@
 // You may not use this file except in accordance with one or both of these
 // licenses.
 
+use bitcoin::blockdata::constants::ChainHash;
 use bitcoin::blockdata::script::Builder;
 use bitcoin::blockdata::transaction::TxOut;
-use bitcoin::hash_types::BlockHash;
 
+use lightning::blinded_path::{BlindedHop, BlindedPath};
 use lightning::chain::transaction::OutPoint;
+use lightning::ln::ChannelId;
 use lightning::ln::channelmanager::{self, ChannelDetails, ChannelCounterparty};
+use lightning::ln::features::{BlindedHopFeatures, Bolt12InvoiceFeatures};
 use lightning::ln::msgs;
+use lightning::offers::invoice::BlindedPayInfo;
 use lightning::routing::gossip::{NetworkGraph, RoutingFees};
 use lightning::routing::utxo::{UtxoFuture, UtxoLookup, UtxoLookupError, UtxoResult};
 use lightning::routing::router::{find_route, PaymentParameters, RouteHint, RouteHintHop, RouteParameters};
@@ -85,7 +89,7 @@ struct FuzzChainSource<'a, 'b, Out: test_logger::Output> {
        net_graph: &'a NetworkGraph<&'b test_logger::TestLogger<Out>>,
 }
 impl<Out: test_logger::Output> UtxoLookup for FuzzChainSource<'_, '_, Out> {
-       fn get_utxo(&self, _genesis_hash: &BlockHash, _short_channel_id: u64) -> UtxoResult {
+       fn get_utxo(&self, _chain_hash: &ChainHash, _short_channel_id: u64) -> UtxoResult {
                let input_slice = self.input.get_slice(2);
                if input_slice.is_none() { return UtxoResult::Sync(Err(UtxoLookupError::UnknownTx)); }
                let input_slice = input_slice.unwrap();
@@ -207,7 +211,7 @@ pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
                                                let rnid = node_pks.iter().skip(u16::from_be_bytes(get_slice!(2).try_into().unwrap()) as usize % node_pks.len()).next().unwrap();
                                                let capacity = u64::from_be_bytes(get_slice!(8).try_into().unwrap());
                                                $first_hops_vec.push(ChannelDetails {
-                                                       channel_id: [0; 32],
+                                                       channel_id: ChannelId::new_zero(),
                                                        counterparty: ChannelCounterparty {
                                                                node_id: *rnid,
                                                                features: channelmanager::provided_init_features(&UserConfig::default()),
@@ -315,7 +319,7 @@ pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
                                net_graph.channel_failed_permanent(short_channel_id);
                        },
                        _ if node_pks.is_empty() => {},
-                       _ => {
+                       x if x < 250 => {
                                let mut first_hops_vec = Vec::new();
                                // Use macros here and in the blinded match arm to ensure values are fetched from the fuzz
                                // input in the same order, for better coverage.
@@ -323,13 +327,50 @@ pub fn do_test<Out: test_logger::Output>(data: &[u8], out: Out) {
                                let mut last_hops = Vec::new();
                                last_hops!(last_hops);
                                find_routes!(first_hops, node_pks.iter(), |final_amt, final_delta, target: &PublicKey| {
-                                       RouteParameters {
-                                               payment_params: PaymentParameters::from_node_id(*target, final_delta)
+                                       RouteParameters::from_payment_params_and_value(
+                                               PaymentParameters::from_node_id(*target, final_delta)
                                                        .with_route_hints(last_hops.clone()).unwrap(),
-                                               final_value_msat: final_amt,
-                                       }
+                                               final_amt)
                                });
                        },
+                       x => {
+                               let mut first_hops_vec = Vec::new();
+                               let first_hops = first_hops!(first_hops_vec);
+                               let mut last_hops_unblinded = Vec::new();
+                               last_hops!(last_hops_unblinded);
+                               let dummy_pk = PublicKey::from_slice(&[2; 33]).unwrap();
+                               let last_hops: Vec<(BlindedPayInfo, BlindedPath)> = last_hops_unblinded.into_iter().map(|hint| {
+                                       let hop = &hint.0[0];
+                                       let payinfo = BlindedPayInfo {
+                                               fee_base_msat: hop.fees.base_msat,
+                                               fee_proportional_millionths: hop.fees.proportional_millionths,
+                                               htlc_minimum_msat: hop.htlc_minimum_msat.unwrap(),
+                                               htlc_maximum_msat: hop.htlc_minimum_msat.unwrap().saturating_mul(100),
+                                               cltv_expiry_delta: hop.cltv_expiry_delta,
+                                               features: BlindedHopFeatures::empty(),
+                                       };
+                                       let num_blinded_hops = x % 250;
+                                       let mut blinded_hops = Vec::new();
+                                       for _ in 0..num_blinded_hops {
+                                               blinded_hops.push(BlindedHop {
+                                                       blinded_node_id: dummy_pk,
+                                                       encrypted_payload: Vec::new()
+                                               });
+                                       }
+                                       (payinfo, BlindedPath {
+                                               introduction_node_id: hop.src_node_id,
+                                               blinding_point: dummy_pk,
+                                               blinded_hops,
+                                       })
+                               }).collect();
+                               let mut features = Bolt12InvoiceFeatures::empty();
+                               features.set_basic_mpp_optional();
+                               find_routes!(first_hops, vec![dummy_pk].iter(), |final_amt, _, _| {
+                                       RouteParameters::from_payment_params_and_value(PaymentParameters::blinded(last_hops.clone())
+                                               .with_bolt12_features(features.clone()).unwrap(),
+                                       final_amt)
+                               });
+                       }
                }
        }
 }