// Check the remaining max total routing fee for the second attempt is 50_000 - 1_000 msat fee
// used by the first path
route_params.max_total_routing_fee_msat = Some(max_total_routing_fee_msat - 1_000);
+ route.route_params = Some(route_params.clone());
nodes[0].router.expect_find_route(route_params, Ok(route));
nodes[0].node.process_pending_htlc_forwards();
check_added_monitors!(nodes[0], 1);
route.paths.remove(0);
route_params.final_value_msat -= first_path_value;
- route.route_params.as_mut().map(|p| p.final_value_msat -= first_path_value);
route_params.payment_params.previously_failed_channels.push(chan_4_update.contents.short_channel_id);
-
// Check the remaining max total routing fee for the second attempt accounts only for 1_000 msat
// base fee, but not for overpaid value of the first try.
route_params.max_total_routing_fee_msat.as_mut().map(|m| *m -= 1000);
+
+ route.route_params = Some(route_params.clone());
nodes[0].router.expect_find_route(route_params, Ok(route));
nodes[0].node.process_pending_htlc_forwards();
let mut retry_params = RouteParameters::from_payment_params_and_value(pay_params, 100_000_000);
retry_params.max_total_routing_fee_msat = None;
- route.route_params.as_mut().unwrap().final_value_msat = 100_000_000;
+ route.route_params = Some(retry_params.clone());
nodes[0].router.expect_find_route(retry_params, Ok(route.clone()));
{
maybe_announced_channel: true,
}], blinded_tail: None },
],
- route_params: Some(RouteParameters::from_payment_params_and_value(
- PaymentParameters::from_node_id(nodes[1].node.get_our_node_id(), TEST_FINAL_CLTV),
- 100_000_001)),
+ route_params: Some(route_params.clone()),
};
nodes[0].router.expect_find_route(route_params.clone(), Ok(route.clone()));
// On retry, split the payment across both channels.
route.paths[1].hops[0].fee_msat = 50_000_001;
let mut pay_params = route_params.payment_params.clone();
pay_params.previously_failed_channels.push(chans[0].short_channel_id.unwrap());
- nodes[0].router.expect_find_route(
- RouteParameters::from_payment_params_and_value(pay_params, amt_msat),
- Ok(route.clone()));
+ let retry_params = RouteParameters::from_payment_params_and_value(pay_params, amt_msat);
+ route.route_params = Some(retry_params.clone());
+ nodes[0].router.expect_find_route(retry_params, Ok(route.clone()));
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::secret_only(payment_secret),
PaymentId(payment_hash.0), route_params, Retry::Attempts(1)).unwrap();
route.paths[0].hops[1].fee_msat = amt_msat;
let mut retry_params = RouteParameters::from_payment_params_and_value(second_payment_params, amt_msat);
retry_params.max_total_routing_fee_msat = None;
+ route.route_params = Some(retry_params.clone());
nodes[0].router.expect_find_route(retry_params, Ok(route.clone()));
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::secret_only(payment_secret),
route.paths.remove(0);
let mut retry_params = RouteParameters::from_payment_params_and_value(second_payment_params, amt_msat / 2);
retry_params.max_total_routing_fee_msat = None;
- route.route_params.as_mut().unwrap().final_value_msat = amt_msat / 2;
+ route.route_params = Some(retry_params.clone());
nodes[0].router.expect_find_route(retry_params, Ok(route.clone()));
nodes[0].node.send_payment(payment_hash, RecipientOnionFields::secret_only(payment_secret),
// from here on out, the retry `RouteParameters` amount will be amt/1000
route_params.final_value_msat /= 1000;
- route.route_params.as_mut().unwrap().final_value_msat /= 1000;
+ route.route_params = Some(route_params.clone());
route.paths.pop();
let end_time = Instant::now() + Duration::from_secs(1);
new_route_params.payment_params.previously_failed_channels = previously_failed_channels.clone();
new_route_params.max_total_routing_fee_msat.as_mut().map(|m| *m -= 100_000);
route.paths[0].hops[1].short_channel_id += 1;
+ route.route_params = Some(new_route_params.clone());
nodes[0].router.expect_find_route(new_route_params, Ok(route.clone()));
let bs_fail_updates = get_htlc_update_msgs!(nodes[1], nodes[0].node.get_our_node_id());
send_payment(&nodes[2], &vec!(&nodes[1])[..], 1_500_000);
let amt_msat = 1_000_000;
- let (route, payment_hash, payment_preimage, payment_secret) =
+ let (mut route, payment_hash, payment_preimage, payment_secret) =
get_route_and_payment_hash!(nodes[0], nodes[2], amt_msat);
// Initiate the payment
// Retry the payment and make sure it succeeds
route_params.payment_params.previously_failed_channels.push(chan_2_update.contents.short_channel_id);
+ route.route_params = Some(route_params.clone());
nodes[0].router.expect_find_route(route_params, Ok(route));
nodes[0].node.process_pending_htlc_forwards();
check_added_monitors!(nodes[0], 1);
assert_eq!(route.paths.len(), 1);
assert_eq!(route.get_total_amount(), amt_msat);
}
+
+ #[test]
+ fn first_hop_preferred_over_hint() {
+ // Check that if we have a first hop to a peer we'd always prefer that over a route hint
+ // they gave us, but we'd still consider all subsequent hints if they are more attractive.
+ let secp_ctx = Secp256k1::new();
+ let logger = Arc::new(ln_test_utils::TestLogger::new());
+ let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, Arc::clone(&logger)));
+ let gossip_sync = P2PGossipSync::new(Arc::clone(&network_graph), None, Arc::clone(&logger));
+ let scorer = ln_test_utils::TestScorer::new();
+ let keys_manager = ln_test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
+ let random_seed_bytes = keys_manager.get_secure_random_bytes();
+ let config = UserConfig::default();
+
+ let amt_msat = 1_000_000;
+ let (our_privkey, our_node_id, privkeys, nodes) = get_nodes(&secp_ctx);
+
+ add_channel(&gossip_sync, &secp_ctx, &our_privkey, &privkeys[0],
+ ChannelFeatures::from_le_bytes(id_to_feature_flags(1)), 1);
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ chain_hash: genesis_block(Network::Testnet).header.block_hash(),
+ short_channel_id: 1,
+ timestamp: 1,
+ flags: 0,
+ cltv_expiry_delta: 42,
+ htlc_minimum_msat: 1_000,
+ htlc_maximum_msat: 10_000_000,
+ fee_base_msat: 800,
+ fee_proportional_millionths: 0,
+ excess_data: Vec::new()
+ });
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ chain_hash: genesis_block(Network::Testnet).header.block_hash(),
+ short_channel_id: 1,
+ timestamp: 1,
+ flags: 1,
+ cltv_expiry_delta: 42,
+ htlc_minimum_msat: 1_000,
+ htlc_maximum_msat: 10_000_000,
+ fee_base_msat: 800,
+ fee_proportional_millionths: 0,
+ excess_data: Vec::new()
+ });
+
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[0], &privkeys[1],
+ ChannelFeatures::from_le_bytes(id_to_feature_flags(1)), 2);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ chain_hash: genesis_block(Network::Testnet).header.block_hash(),
+ short_channel_id: 2,
+ timestamp: 2,
+ flags: 0,
+ cltv_expiry_delta: 42,
+ htlc_minimum_msat: 1_000,
+ htlc_maximum_msat: 10_000_000,
+ fee_base_msat: 800,
+ fee_proportional_millionths: 0,
+ excess_data: Vec::new()
+ });
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ chain_hash: genesis_block(Network::Testnet).header.block_hash(),
+ short_channel_id: 2,
+ timestamp: 2,
+ flags: 1,
+ cltv_expiry_delta: 42,
+ htlc_minimum_msat: 1_000,
+ htlc_maximum_msat: 10_000_000,
+ fee_base_msat: 800,
+ fee_proportional_millionths: 0,
+ excess_data: Vec::new()
+ });
+
+ let dest_node_id = nodes[2];
+
+ let route_hint = RouteHint(vec![RouteHintHop {
+ src_node_id: our_node_id,
+ short_channel_id: 44,
+ fees: RoutingFees {
+ base_msat: 234,
+ proportional_millionths: 0,
+ },
+ cltv_expiry_delta: 10,
+ htlc_minimum_msat: None,
+ htlc_maximum_msat: Some(5_000_000),
+ },
+ RouteHintHop {
+ src_node_id: nodes[0],
+ short_channel_id: 45,
+ fees: RoutingFees {
+ base_msat: 123,
+ proportional_millionths: 0,
+ },
+ cltv_expiry_delta: 10,
+ htlc_minimum_msat: None,
+ htlc_maximum_msat: None,
+ }]);
+
+ let payment_params = PaymentParameters::from_node_id(dest_node_id, 42)
+ .with_route_hints(vec![route_hint]).unwrap()
+ .with_bolt11_features(channelmanager::provided_invoice_features(&config)).unwrap();
+ let route_params = RouteParameters::from_payment_params_and_value(
+ payment_params, amt_msat);
+
+ // First create an insufficient first hop for channel with SCID 1 and check we'd use the
+ // route hint.
+ let first_hop = get_channel_details(Some(1), nodes[0],
+ channelmanager::provided_init_features(&config), 999_999);
+ let first_hops = vec![first_hop];
+
+ let route = get_route(&our_node_id, &route_params.clone(), &network_graph.read_only(),
+ Some(&first_hops.iter().collect::<Vec<_>>()), Arc::clone(&logger), &scorer,
+ &Default::default(), &random_seed_bytes).unwrap();
+ assert_eq!(route.paths.len(), 1);
+ assert_eq!(route.get_total_amount(), amt_msat);
+ assert_eq!(route.paths[0].hops.len(), 2);
+ assert_eq!(route.paths[0].hops[0].short_channel_id, 44);
+ assert_eq!(route.paths[0].hops[1].short_channel_id, 45);
+ assert_eq!(route.get_total_fees(), 123);
+
+ // Now check we would trust our first hop info, i.e., fail if we detect the route hint is
+ // for a first hop channel.
+ let mut first_hop = get_channel_details(Some(1), nodes[0], channelmanager::provided_init_features(&config), 999_999);
+ first_hop.outbound_scid_alias = Some(44);
+ let first_hops = vec![first_hop];
+
+ let route_res = get_route(&our_node_id, &route_params.clone(), &network_graph.read_only(),
+ Some(&first_hops.iter().collect::<Vec<_>>()), Arc::clone(&logger), &scorer,
+ &Default::default(), &random_seed_bytes);
+ assert!(route_res.is_err());
+
+ // Finally check we'd use the first hop if has sufficient outbound capacity. But we'd stil
+ // use the cheaper second hop of the route hint.
+ let mut first_hop = get_channel_details(Some(1), nodes[0],
+ channelmanager::provided_init_features(&config), 10_000_000);
+ first_hop.outbound_scid_alias = Some(44);
+ let first_hops = vec![first_hop];
+
+ let route = get_route(&our_node_id, &route_params.clone(), &network_graph.read_only(),
+ Some(&first_hops.iter().collect::<Vec<_>>()), Arc::clone(&logger), &scorer,
+ &Default::default(), &random_seed_bytes).unwrap();
+ assert_eq!(route.paths.len(), 1);
+ assert_eq!(route.get_total_amount(), amt_msat);
+ assert_eq!(route.paths[0].hops.len(), 2);
+ assert_eq!(route.paths[0].hops[0].short_channel_id, 1);
+ assert_eq!(route.paths[0].hops[1].short_channel_id, 45);
+ assert_eq!(route.get_total_fees(), 123);
+ }
+
+ #[test]
+ fn allow_us_being_first_hint() {
+ // Check that we consider a route hint even if we are the src of the first hop.
+ let secp_ctx = Secp256k1::new();
+ let logger = Arc::new(ln_test_utils::TestLogger::new());
+ let network_graph = Arc::new(NetworkGraph::new(Network::Testnet, Arc::clone(&logger)));
+ let scorer = ln_test_utils::TestScorer::new();
+ let keys_manager = ln_test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
+ let random_seed_bytes = keys_manager.get_secure_random_bytes();
+ let config = UserConfig::default();
+
+ let (_, our_node_id, _, nodes) = get_nodes(&secp_ctx);
+
+ let amt_msat = 1_000_000;
+ let dest_node_id = nodes[1];
+
+ let first_hop = get_channel_details(Some(1), nodes[0], channelmanager::provided_init_features(&config), 10_000_000);
+ let first_hops = vec![first_hop];
+
+ let route_hint = RouteHint(vec![RouteHintHop {
+ src_node_id: our_node_id,
+ short_channel_id: 44,
+ fees: RoutingFees {
+ base_msat: 123,
+ proportional_millionths: 0,
+ },
+ cltv_expiry_delta: 10,
+ htlc_minimum_msat: None,
+ htlc_maximum_msat: None,
+ }]);
+
+ let payment_params = PaymentParameters::from_node_id(dest_node_id, 42)
+ .with_route_hints(vec![route_hint]).unwrap()
+ .with_bolt11_features(channelmanager::provided_invoice_features(&config)).unwrap();
+
+ let route_params = RouteParameters::from_payment_params_and_value(
+ payment_params, amt_msat);
+
+
+ let route = get_route(&our_node_id, &route_params, &network_graph.read_only(),
+ Some(&first_hops.iter().collect::<Vec<_>>()), Arc::clone(&logger), &scorer,
+ &Default::default(), &random_seed_bytes).unwrap();
+
+ assert_eq!(route.paths.len(), 1);
+ assert_eq!(route.get_total_amount(), amt_msat);
+ assert_eq!(route.get_total_fees(), 0);
+ assert_eq!(route.paths[0].hops.len(), 1);
+
+ assert_eq!(route.paths[0].hops[0].short_channel_id, 44);
+ }
}
#[cfg(all(any(test, ldk_bench), not(feature = "no-std")))]
projects / rust-lightning / commitdiff