//! The router finds paths within a [`NetworkGraph`] for a payment.
-use bitcoin::secp256k1::PublicKey;
+use bitcoin::secp256k1::{PublicKey, Secp256k1, self};
use bitcoin::hashes::Hash;
use bitcoin::hashes::sha256::Hash as Sha256;
use crate::ln::features::{Bolt11InvoiceFeatures, Bolt12InvoiceFeatures, ChannelFeatures, NodeFeatures};
use crate::ln::msgs::{DecodeError, ErrorAction, LightningError, MAX_VALUE_MSAT};
use crate::offers::invoice::{BlindedPayInfo, Bolt12Invoice};
+use crate::onion_message::{DefaultMessageRouter, Destination, MessageRouter, OnionMessagePath};
use crate::routing::gossip::{DirectedChannelInfo, EffectiveCapacity, ReadOnlyNetworkGraph, NetworkGraph, NodeId, RoutingFees};
use crate::routing::scoring::{ChannelUsage, LockableScore, ScoreLookUp};
+use crate::sign::EntropySource;
use crate::util::ser::{Writeable, Readable, ReadableArgs, Writer};
use crate::util::logger::{Level, Logger};
use crate::util::chacha20::ChaCha20;
use core::ops::Deref;
/// A [`Router`] implemented using [`find_route`].
-pub struct DefaultRouter<G: Deref<Target = NetworkGraph<L>>, L: Deref, S: Deref, SP: Sized, Sc: ScoreLookUp<ScoreParams = SP>> where
+pub struct DefaultRouter<G: Deref<Target = NetworkGraph<L>> + Clone, L: Deref, S: Deref, SP: Sized, Sc: ScoreLookUp<ScoreParams = SP>> where
L::Target: Logger,
S::Target: for <'a> LockableScore<'a, ScoreLookUp = Sc>,
{
logger: L,
random_seed_bytes: Mutex<[u8; 32]>,
scorer: S,
- score_params: SP
+ score_params: SP,
+ message_router: DefaultMessageRouter<G, L>,
}
-impl<G: Deref<Target = NetworkGraph<L>>, L: Deref, S: Deref, SP: Sized, Sc: ScoreLookUp<ScoreParams = SP>> DefaultRouter<G, L, S, SP, Sc> where
+impl<G: Deref<Target = NetworkGraph<L>> + Clone, L: Deref, S: Deref, SP: Sized, Sc: ScoreLookUp<ScoreParams = SP>> DefaultRouter<G, L, S, SP, Sc> where
L::Target: Logger,
S::Target: for <'a> LockableScore<'a, ScoreLookUp = Sc>,
{
/// Creates a new router.
pub fn new(network_graph: G, logger: L, random_seed_bytes: [u8; 32], scorer: S, score_params: SP) -> Self {
let random_seed_bytes = Mutex::new(random_seed_bytes);
- Self { network_graph, logger, random_seed_bytes, scorer, score_params }
+ let message_router = DefaultMessageRouter::new(network_graph.clone());
+ Self { network_graph, logger, random_seed_bytes, scorer, score_params, message_router }
}
}
-impl< G: Deref<Target = NetworkGraph<L>>, L: Deref, S: Deref, SP: Sized, Sc: ScoreLookUp<ScoreParams = SP>> Router for DefaultRouter<G, L, S, SP, Sc> where
+impl<G: Deref<Target = NetworkGraph<L>> + Clone, L: Deref, S: Deref, SP: Sized, Sc: ScoreLookUp<ScoreParams = SP>> Router for DefaultRouter<G, L, S, SP, Sc> where
L::Target: Logger,
S::Target: for <'a> LockableScore<'a, ScoreLookUp = Sc>,
{
}
}
+impl< G: Deref<Target = NetworkGraph<L>> + Clone, L: Deref, S: Deref, SP: Sized, Sc: ScoreLookUp<ScoreParams = SP>> MessageRouter for DefaultRouter<G, L, S, SP, Sc> where
+ L::Target: Logger,
+ S::Target: for <'a> LockableScore<'a, ScoreLookUp = Sc>,
+{
+ fn find_path(
+ &self, sender: PublicKey, peers: Vec<PublicKey>, destination: Destination
+ ) -> Result<OnionMessagePath, ()> {
+ self.message_router.find_path(sender, peers, destination)
+ }
+
+ fn create_blinded_paths<
+ ES: EntropySource + ?Sized, T: secp256k1::Signing + secp256k1::Verification
+ >(
+ &self, recipient: PublicKey, peers: Vec<PublicKey>, entropy_source: &ES,
+ secp_ctx: &Secp256k1<T>
+ ) -> Result<Vec<BlindedPath>, ()> {
+ self.message_router.create_blinded_paths(recipient, peers, entropy_source, secp_ctx)
+ }
+}
+
/// A trait defining behavior for routing a payment.
-pub trait Router {
+pub trait Router: MessageRouter {
/// Finds a [`Route`] for a payment between the given `payer` and a payee.
///
/// The `payee` and the payment's value are given in [`RouteParameters::payment_params`]
pub(crate) mod bench_utils {
use super::*;
use std::fs::File;
+ use std::time::Duration;
use bitcoin::hashes::Hash;
use bitcoin::secp256k1::{PublicKey, Secp256k1, SecretKey};
if let Ok(route) = route_res {
for path in route.paths {
if seed & 0x80 == 0 {
- scorer.payment_path_successful(&path);
+ scorer.payment_path_successful(&path, Duration::ZERO);
} else {
let short_channel_id = path.hops[path.hops.len() / 2].short_channel_id;
- scorer.payment_path_failed(&path, short_channel_id);
+ scorer.payment_path_failed(&path, short_channel_id, Duration::ZERO);
}
seed = seed.overflowing_mul(6364136223846793005).0.overflowing_add(1).0;
}