//! The top-level routing/network map tracking logic lives here.
//!
-//! You probably want to create a NetGraphMsgHandler and use that as your RoutingMessageHandler and then
+//! You probably want to create a P2PGossipSync and use that as your RoutingMessageHandler and then
//! interrogate it to get routes for your own payments.
-use bitcoin::secp256k1::key::PublicKey;
+use bitcoin::secp256k1::PublicKey;
use ln::channelmanager::ChannelDetails;
use ln::features::{ChannelFeatures, InvoiceFeatures, NodeFeatures};
use ln::msgs::{DecodeError, ErrorAction, LightningError, MAX_VALUE_MSAT};
-use routing::scoring::Score;
-use routing::network_graph::{DirectedChannelInfoWithUpdate, EffectiveCapacity, NetworkGraph, ReadOnlyNetworkGraph, NodeId, RoutingFees};
-use util::ser::{Writeable, Readable};
+use routing::gossip::{DirectedChannelInfoWithUpdate, EffectiveCapacity, ReadOnlyNetworkGraph, NetworkGraph, NodeId, RoutingFees};
+use routing::scoring::{ChannelUsage, Score};
+use util::ser::{Writeable, Readable, Writer};
use util::logger::{Level, Logger};
use util::chacha20::ChaCha20;
#[derive(Clone, Hash, PartialEq, Eq)]
pub struct Route {
/// The list of routes taken for a single (potentially-)multi-part payment. The pubkey of the
- /// last RouteHop in each path must be the same.
- /// Each entry represents a list of hops, NOT INCLUDING our own, where the last hop is the
- /// destination. Thus, this must always be at least length one. While the maximum length of any
- /// given path is variable, keeping the length of any path to less than 20 should currently
- /// ensure it is viable.
+ /// last RouteHop in each path must be the same. Each entry represents a list of hops, NOT
+ /// INCLUDING our own, where the last hop is the destination. Thus, this must always be at
+ /// least length one. While the maximum length of any given path is variable, keeping the length
+ /// of any path less or equal to 19 should currently ensure it is viable.
pub paths: Vec<Vec<RouteHop>>,
/// The `payment_params` parameter passed to [`find_route`].
/// This is used by `ChannelManager` to track information which may be required for retries,
/// Parameters needed to find a [`Route`].
///
-/// Passed to [`find_route`] and also provided in [`Event::PaymentPathFailed`] for retrying a failed
-/// payment path.
+/// Passed to [`find_route`] and [`build_route_from_hops`], but also provided in
+/// [`Event::PaymentPathFailed`] for retrying a failed payment path.
///
/// [`Event::PaymentPathFailed`]: crate::util::events::Event::PaymentPathFailed
#[derive(Clone, Debug)]
/// Maximum total CTLV difference we allow for a full payment path.
pub const DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA: u32 = 1008;
-/// The median hop CLTV expiry delta currently seen in the network.
+/// Maximum number of paths we allow an (MPP) payment to have.
+// The default limit is currently set rather arbitrary - there aren't any real fundamental path-count
+// limits, but for now more than 10 paths likely carries too much one-path failure.
+pub const DEFAULT_MAX_PATH_COUNT: u8 = 10;
+
+// The median hop CLTV expiry delta currently seen in the network.
const MEDIAN_HOP_CLTV_EXPIRY_DELTA: u32 = 40;
+// During routing, we only consider paths shorter than our maximum length estimate.
+// In the legacy onion format, the maximum number of hops used to be a fixed value of 20.
+// However, in the TLV onion format, there is no fixed maximum length, but the `hop_payloads`
+// field is always 1300 bytes. As the `tlv_payload` for each hop may vary in length, we have to
+// estimate how many hops the route may have so that it actually fits the `hop_payloads` field.
+//
+// We estimate 3+32 (payload length and HMAC) + 2+8 (amt_to_forward) + 2+4 (outgoing_cltv_value) +
+// 2+8 (short_channel_id) = 61 bytes for each intermediate hop and 3+32
+// (payload length and HMAC) + 2+8 (amt_to_forward) + 2+4 (outgoing_cltv_value) + 2+32+8
+// (payment_secret and total_msat) = 93 bytes for the final hop.
+// Since the length of the potentially included `payment_metadata` is unknown to us, we round
+// down from (1300-93) / 61 = 19.78... to arrive at a conservative estimate of 19.
+const MAX_PATH_LENGTH_ESTIMATE: u8 = 19;
+
/// The recipient of a payment.
#[derive(Clone, Debug, Hash, PartialEq, Eq)]
pub struct PaymentParameters {
pub expiry_time: Option<u64>,
/// The maximum total CLTV delta we accept for the route.
+ /// Defaults to [`DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA`].
pub max_total_cltv_expiry_delta: u32,
+
+ /// The maximum number of paths that may be used by (MPP) payments.
+ /// Defaults to [`DEFAULT_MAX_PATH_COUNT`].
+ pub max_path_count: u8,
+
+ /// Selects the maximum share of a channel's total capacity which will be sent over a channel,
+ /// as a power of 1/2. A higher value prefers to send the payment using more MPP parts whereas
+ /// a lower value prefers to send larger MPP parts, potentially saturating channels and
+ /// increasing failure probability for those paths.
+ ///
+ /// Note that this restriction will be relaxed during pathfinding after paths which meet this
+ /// restriction have been found. While paths which meet this criteria will be searched for, it
+ /// is ultimately up to the scorer to select them over other paths.
+ ///
+ /// A value of 0 will allow payments up to and including a channel's total announced usable
+ /// capacity, a value of one will only use up to half its capacity, two 1/4, etc.
+ ///
+ /// Default value: 1
+ pub max_channel_saturation_power_of_half: u8,
+
+ /// A list of SCIDs which this payment was previously attempted over and which caused the
+ /// payment to fail. Future attempts for the same payment shouldn't be relayed through any of
+ /// these SCIDs.
+ pub previously_failed_channels: Vec<u64>,
}
impl_writeable_tlv_based!(PaymentParameters, {
(0, payee_pubkey, required),
(1, max_total_cltv_expiry_delta, (default_value, DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA)),
(2, features, option),
+ (3, max_path_count, (default_value, DEFAULT_MAX_PATH_COUNT)),
(4, route_hints, vec_type),
+ (5, max_channel_saturation_power_of_half, (default_value, 1)),
(6, expiry_time, option),
+ (7, previously_failed_channels, vec_type),
});
impl PaymentParameters {
route_hints: vec![],
expiry_time: None,
max_total_cltv_expiry_delta: DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA,
+ max_path_count: DEFAULT_MAX_PATH_COUNT,
+ max_channel_saturation_power_of_half: 1,
+ previously_failed_channels: Vec::new(),
}
}
pub fn with_max_total_cltv_expiry_delta(self, max_total_cltv_expiry_delta: u32) -> Self {
Self { max_total_cltv_expiry_delta, ..self }
}
+
+ /// Includes a limit for the maximum number of payment paths that may be used.
+ ///
+ /// (C-not exported) since bindings don't support move semantics
+ pub fn with_max_path_count(self, max_path_count: u8) -> Self {
+ Self { max_path_count, ..self }
+ }
+
+ /// Includes a limit for the maximum number of payment paths that may be used.
+ ///
+ /// (C-not exported) since bindings don't support move semantics
+ pub fn with_max_channel_saturation_power_of_half(self, max_channel_saturation_power_of_half: u8) -> Self {
+ Self { max_channel_saturation_power_of_half, ..self }
+ }
}
/// A list of hops along a payment path terminating with a channel to the recipient.
/// All penalties incurred from this hop on the way to the destination, as calculated using
/// channel scoring.
path_penalty_msat: u64,
+ /// The number of hops walked up to this node.
+ path_length_to_node: u8,
}
impl cmp::Ord for RouteGraphNode {
FirstHop {
details: &'a ChannelDetails,
},
- /// A hop found in the [`NetworkGraph`], where the channel capacity may or may not be known.
+ /// A hop found in the [`ReadOnlyNetworkGraph`], where the channel capacity may be unknown.
PublicHop {
info: DirectedChannelInfoWithUpdate<'a>,
short_channel_id: u64,
impl<'a> CandidateRouteHop<'a> {
fn short_channel_id(&self) -> u64 {
match self {
- CandidateRouteHop::FirstHop { details } => details.short_channel_id.unwrap(),
+ CandidateRouteHop::FirstHop { details } => details.get_outbound_payment_scid().unwrap(),
CandidateRouteHop::PublicHop { short_channel_id, .. } => *short_channel_id,
CandidateRouteHop::PrivateHop { hint } => hint.short_channel_id,
}
fn effective_capacity(&self) -> EffectiveCapacity {
match self {
CandidateRouteHop::FirstHop { details } => EffectiveCapacity::ExactLiquidity {
- liquidity_msat: details.outbound_capacity_msat,
+ liquidity_msat: details.next_outbound_htlc_limit_msat,
},
CandidateRouteHop::PublicHop { info, .. } => info.effective_capacity(),
CandidateRouteHop::PrivateHop { .. } => EffectiveCapacity::Infinite,
}
}
+#[inline]
+fn max_htlc_from_capacity(capacity: EffectiveCapacity, max_channel_saturation_power_of_half: u8) -> u64 {
+ let saturation_shift: u32 = max_channel_saturation_power_of_half as u32;
+ match capacity {
+ EffectiveCapacity::ExactLiquidity { liquidity_msat } => liquidity_msat,
+ EffectiveCapacity::Infinite => u64::max_value(),
+ EffectiveCapacity::Unknown => EffectiveCapacity::Unknown.as_msat(),
+ EffectiveCapacity::MaximumHTLC { amount_msat } =>
+ amount_msat.checked_shr(saturation_shift).unwrap_or(0),
+ EffectiveCapacity::Total { capacity_msat, htlc_maximum_msat: None } =>
+ capacity_msat.checked_shr(saturation_shift).unwrap_or(0),
+ EffectiveCapacity::Total { capacity_msat, htlc_maximum_msat: Some(htlc_max) } =>
+ cmp::min(capacity_msat.checked_shr(saturation_shift).unwrap_or(0), htlc_max),
+ }
+}
+
+fn iter_equal<I1: Iterator, I2: Iterator>(mut iter_a: I1, mut iter_b: I2)
+-> bool where I1::Item: PartialEq<I2::Item> {
+ loop {
+ let a = iter_a.next();
+ let b = iter_b.next();
+ if a.is_none() && b.is_none() { return true; }
+ if a.is_none() || b.is_none() { return false; }
+ if a.unwrap().ne(&b.unwrap()) { return false; }
+ }
+}
+
/// It's useful to keep track of the hops associated with the fees required to use them,
/// so that we can choose cheaper paths (as per Dijkstra's algorithm).
/// Fee values should be updated only in the context of the whole path, see update_value_and_recompute_fees.
impl<'a> core::fmt::Debug for PathBuildingHop<'a> {
fn fmt(&self, f: &mut core::fmt::Formatter) -> Result<(), core::fmt::Error> {
- f.debug_struct("PathBuildingHop")
+ let mut debug_struct = f.debug_struct("PathBuildingHop");
+ debug_struct
.field("node_id", &self.node_id)
.field("short_channel_id", &self.candidate.short_channel_id())
.field("total_fee_msat", &self.total_fee_msat)
.field("total_fee_msat - (next_hops_fee_msat + hop_use_fee_msat)", &(&self.total_fee_msat - (&self.next_hops_fee_msat + &self.hop_use_fee_msat)))
.field("path_penalty_msat", &self.path_penalty_msat)
.field("path_htlc_minimum_msat", &self.path_htlc_minimum_msat)
- .field("cltv_expiry_delta", &self.candidate.cltv_expiry_delta())
- .finish()
+ .field("cltv_expiry_delta", &self.candidate.cltv_expiry_delta());
+ #[cfg(all(not(feature = "_bench_unstable"), any(test, fuzzing)))]
+ let debug_struct = debug_struct
+ .field("value_contribution_msat", &self.value_contribution_msat);
+ debug_struct.finish()
}
}
// to the fees being paid not lining up with the actual limits.
//
// Note that this function is not aware of the available_liquidity limit, and thus does not
- // support increasing the value being transferred.
+ // support increasing the value being transferred beyond what was selected during the initial
+ // routing passes.
fn update_value_and_recompute_fees(&mut self, value_msat: u64) {
- assert!(value_msat <= self.hops.last().unwrap().0.fee_msat);
-
let mut total_fee_paid_msat = 0 as u64;
for i in (0..self.hops.len()).rev() {
let last_hop = i == self.hops.len() - 1;
}
}
+/// The default `features` we assume for a node in a route, when no `features` are known about that
+/// specific node.
+///
+/// Default features are:
+/// * variable_length_onion_optional
+fn default_node_features() -> NodeFeatures {
+ let mut features = NodeFeatures::empty();
+ features.set_variable_length_onion_optional();
+ features
+}
+
/// Finds a route from us (payer) to the given target node (payee).
///
/// If the payee provided features in their invoice, they should be provided via `params.payee`.
/// Private routing paths between a public node and the target may be included in `params.payee`.
///
/// If some channels aren't announced, it may be useful to fill in `first_hops` with the results
-/// from [`ChannelManager::list_usable_channels`]. If it is filled in, the view of our local
-/// channels from [`NetworkGraph`] will be ignored, and only those in `first_hops` will be used.
+/// from [`ChannelManager::list_usable_channels`]. If it is filled in, the view of these channels
+/// from `network_graph` will be ignored, and only those in `first_hops` will be used.
///
/// The fees on channels from us to the next hop are ignored as they are assumed to all be equal.
/// However, the enabled/disabled bit on such channels as well as the `htlc_minimum_msat` /
///
/// [`ChannelManager::list_usable_channels`]: crate::ln::channelmanager::ChannelManager::list_usable_channels
/// [`Event::PaymentPathFailed`]: crate::util::events::Event::PaymentPathFailed
-pub fn find_route<L: Deref, S: Score>(
- our_node_pubkey: &PublicKey, route_params: &RouteParameters, network: &NetworkGraph,
- first_hops: Option<&[&ChannelDetails]>, logger: L, scorer: &S, random_seed_bytes: &[u8; 32]
+/// [`NetworkGraph`]: crate::routing::gossip::NetworkGraph
+pub fn find_route<L: Deref, GL: Deref, S: Score>(
+ our_node_pubkey: &PublicKey, route_params: &RouteParameters,
+ network_graph: &NetworkGraph<GL>, first_hops: Option<&[&ChannelDetails]>, logger: L,
+ scorer: &S, random_seed_bytes: &[u8; 32]
) -> Result<Route, LightningError>
-where L::Target: Logger {
- let network_graph = network.read_only();
- match get_route(
- our_node_pubkey, &route_params.payment_params, &network_graph, first_hops, route_params.final_value_msat,
- route_params.final_cltv_expiry_delta, logger, scorer, random_seed_bytes
- ) {
- Ok(mut route) => {
- add_random_cltv_offset(&mut route, &route_params.payment_params, &network_graph, random_seed_bytes);
- Ok(route)
- },
- Err(err) => Err(err),
- }
+where L::Target: Logger, GL::Target: Logger {
+ let graph_lock = network_graph.read_only();
+ let mut route = get_route(our_node_pubkey, &route_params.payment_params, &graph_lock, first_hops,
+ route_params.final_value_msat, route_params.final_cltv_expiry_delta, logger, scorer,
+ random_seed_bytes)?;
+ add_random_cltv_offset(&mut route, &route_params.payment_params, &graph_lock, random_seed_bytes);
+ Ok(route)
}
pub(crate) fn get_route<L: Deref, S: Score>(
let network_channels = network_graph.channels();
let network_nodes = network_graph.nodes();
+ if payment_params.max_path_count == 0 {
+ return Err(LightningError{err: "Can't find a route with no paths allowed.".to_owned(), action: ErrorAction::IgnoreError});
+ }
+
// Allow MPP only if we have a features set from somewhere that indicates the payee supports
// it. If the payee supports it they're supposed to include it in the invoice, so that should
// work reliably.
- let allow_mpp = if let Some(features) = &payment_params.features {
+ let allow_mpp = if payment_params.max_path_count == 1 {
+ false
+ } else if let Some(features) = &payment_params.features {
features.supports_basic_mpp()
} else if let Some(node) = network_nodes.get(&payee_node_id) {
if let Some(node_info) = node.announcement_info.as_ref() {
node_info.features.supports_basic_mpp()
} else { false }
} else { false };
+
log_trace!(logger, "Searching for a route from payer {} to payee {} {} MPP and {} first hops {}overriding the network graph", our_node_pubkey,
payment_params.payee_pubkey, if allow_mpp { "with" } else { "without" },
first_hops.map(|hops| hops.len()).unwrap_or(0), if first_hops.is_some() { "" } else { "not " });
HashMap::with_capacity(if first_hops.is_some() { first_hops.as_ref().unwrap().len() } else { 0 });
if let Some(hops) = first_hops {
for chan in hops {
- if chan.short_channel_id.is_none() {
+ if chan.get_outbound_payment_scid().is_none() {
panic!("first_hops should be filled in with usable channels, not pending ones");
}
if chan.counterparty.node_id == *our_node_pubkey {
// The main heap containing all candidate next-hops sorted by their score (max(A* fee,
// htlc_minimum)). Ideally this would be a heap which allowed cheap score reduction instead of
// adding duplicate entries when we find a better path to a given node.
- let mut targets = BinaryHeap::new();
+ let mut targets: BinaryHeap<RouteGraphNode> = BinaryHeap::new();
// Map from node_id to information about the best current path to that node, including feerate
// information.
- let mut dist = HashMap::with_capacity(network_nodes.len());
+ let mut dist: HashMap<NodeId, PathBuildingHop> = HashMap::with_capacity(network_nodes.len());
// During routing, if we ignore a path due to an htlc_minimum_msat limit, we set this,
// indicating that we may wish to try again with a higher value, potentially paying to meet an
let recommended_value_msat = final_value_msat * ROUTE_CAPACITY_PROVISION_FACTOR as u64;
let mut path_value_msat = final_value_msat;
- // We don't want multiple paths (as per MPP) share liquidity of the same channels.
- // This map allows paths to be aware of the channel use by other paths in the same call.
- // This would help to make a better path finding decisions and not "overbook" channels.
- // It is unaware of the directions (except for `outbound_capacity_msat` in `first_hops`).
- let mut bookkept_channels_liquidity_available_msat = HashMap::with_capacity(network_nodes.len());
-
- // Keeping track of how much value we already collected across other paths. Helps to decide:
- // - how much a new path should be transferring (upper bound);
- // - whether a channel should be disregarded because
- // it's available liquidity is too small comparing to how much more we need to collect;
- // - when we want to stop looking for new paths.
+ // Routing Fragmentation Mitigation heuristic:
+ //
+ // Routing fragmentation across many payment paths increases the overall routing
+ // fees as you have irreducible routing fees per-link used (`fee_base_msat`).
+ // Taking too many smaller paths also increases the chance of payment failure.
+ // Thus to avoid this effect, we require from our collected links to provide
+ // at least a minimal contribution to the recommended value yet-to-be-fulfilled.
+ // This requirement is currently set to be 1/max_path_count of the payment
+ // value to ensure we only ever return routes that do not violate this limit.
+ let minimal_value_contribution_msat: u64 = if allow_mpp {
+ (final_value_msat + (payment_params.max_path_count as u64 - 1)) / payment_params.max_path_count as u64
+ } else {
+ final_value_msat
+ };
+
+ // When we start collecting routes we enforce the max_channel_saturation_power_of_half
+ // requirement strictly. After we've collected enough (or if we fail to find new routes) we
+ // drop the requirement by setting this to 0.
+ let mut channel_saturation_pow_half = payment_params.max_channel_saturation_power_of_half;
+
+ // Keep track of how much liquidity has been used in selected channels. Used to determine
+ // if the channel can be used by additional MPP paths or to inform path finding decisions. It is
+ // aware of direction *only* to ensure that the correct htlc_maximum_msat value is used. Hence,
+ // liquidity used in one direction will not offset any used in the opposite direction.
+ let mut used_channel_liquidities: HashMap<(u64, bool), u64> =
+ HashMap::with_capacity(network_nodes.len());
+
+ // Keeping track of how much value we already collected across other paths. Helps to decide
+ // when we want to stop looking for new paths.
let mut already_collected_value_msat = 0;
for (_, channels) in first_hop_targets.iter_mut() {
// sort channels above `recommended_value_msat` in ascending order, preferring channels
// which have enough, but not too much, capacity for the payment.
channels.sort_unstable_by(|chan_a, chan_b| {
- if chan_b.outbound_capacity_msat < recommended_value_msat || chan_a.outbound_capacity_msat < recommended_value_msat {
+ if chan_b.next_outbound_htlc_limit_msat < recommended_value_msat || chan_a.next_outbound_htlc_limit_msat < recommended_value_msat {
// Sort in descending order
- chan_b.outbound_capacity_msat.cmp(&chan_a.outbound_capacity_msat)
+ chan_b.next_outbound_htlc_limit_msat.cmp(&chan_a.next_outbound_htlc_limit_msat)
} else {
// Sort in ascending order
- chan_a.outbound_capacity_msat.cmp(&chan_b.outbound_capacity_msat)
+ chan_a.next_outbound_htlc_limit_msat.cmp(&chan_b.next_outbound_htlc_limit_msat)
}
});
}
// since that value has to be transferred over this channel.
// Returns whether this channel caused an update to `targets`.
( $candidate: expr, $src_node_id: expr, $dest_node_id: expr, $next_hops_fee_msat: expr,
- $next_hops_value_contribution: expr, $next_hops_path_htlc_minimum_msat: expr,
- $next_hops_path_penalty_msat: expr, $next_hops_cltv_delta: expr ) => { {
+ $next_hops_value_contribution: expr, $next_hops_path_htlc_minimum_msat: expr,
+ $next_hops_path_penalty_msat: expr, $next_hops_cltv_delta: expr, $next_hops_path_length: expr ) => { {
// We "return" whether we updated the path at the end, via this:
let mut did_add_update_path_to_src_node = false;
// Channels to self should not be used. This is more of belt-and-suspenders, because in
// - for first and last hops early in get_route
if $src_node_id != $dest_node_id {
let short_channel_id = $candidate.short_channel_id();
- let available_liquidity_msat = bookkept_channels_liquidity_available_msat
- .entry(short_channel_id)
- .or_insert_with(|| $candidate.effective_capacity().as_msat());
+ let effective_capacity = $candidate.effective_capacity();
+ let htlc_maximum_msat = max_htlc_from_capacity(effective_capacity, channel_saturation_pow_half);
// It is tricky to subtract $next_hops_fee_msat from available liquidity here.
// It may be misleading because we might later choose to reduce the value transferred
// fees caused by one expensive channel, but then this channel could have been used
// if the amount being transferred over this path is lower.
// We do this for now, but this is a subject for removal.
- if let Some(available_value_contribution_msat) = available_liquidity_msat.checked_sub($next_hops_fee_msat) {
-
- // Routing Fragmentation Mitigation heuristic:
- //
- // Routing fragmentation across many payment paths increases the overall routing
- // fees as you have irreducible routing fees per-link used (`fee_base_msat`).
- // Taking too many smaller paths also increases the chance of payment failure.
- // Thus to avoid this effect, we require from our collected links to provide
- // at least a minimal contribution to the recommended value yet-to-be-fulfilled.
- //
- // This requirement is currently 5% of the remaining-to-be-collected value.
- // This means as we successfully advance in our collection,
- // the absolute liquidity contribution is lowered,
- // thus increasing the number of potential channels to be selected.
-
- // Derive the minimal liquidity contribution with a ratio of 20 (5%, rounded up)
- // or 100% if we're not allowed to do multipath payments.
- let minimal_value_contribution_msat: u64 = if allow_mpp {
- (recommended_value_msat - already_collected_value_msat + 19) / 20
- } else {
- final_value_msat
- };
+ if let Some(mut available_value_contribution_msat) = htlc_maximum_msat.checked_sub($next_hops_fee_msat) {
+ let used_liquidity_msat = used_channel_liquidities
+ .get(&(short_channel_id, $src_node_id < $dest_node_id))
+ .map_or(0, |used_liquidity_msat| {
+ available_value_contribution_msat = available_value_contribution_msat
+ .saturating_sub(*used_liquidity_msat);
+ *used_liquidity_msat
+ });
+
// Verify the liquidity offered by this channel complies to the minimal contribution.
let contributes_sufficient_value = available_value_contribution_msat >= minimal_value_contribution_msat;
+ // Do not consider candidate hops that would exceed the maximum path length.
+ let path_length_to_node = $next_hops_path_length + 1;
+ let exceeds_max_path_length = path_length_to_node > MAX_PATH_LENGTH_ESTIMATE;
// Do not consider candidates that exceed the maximum total cltv expiry limit.
// In order to already account for some of the privacy enhancing random CLTV
.unwrap_or(payment_params.max_total_cltv_expiry_delta - final_cltv_expiry_delta);
let hop_total_cltv_delta = ($next_hops_cltv_delta as u32)
.saturating_add($candidate.cltv_expiry_delta());
- let doesnt_exceed_cltv_delta_limit = hop_total_cltv_delta <= max_total_cltv_expiry_delta;
+ let exceeds_cltv_delta_limit = hop_total_cltv_delta > max_total_cltv_expiry_delta;
let value_contribution_msat = cmp::min(available_value_contribution_msat, $next_hops_value_contribution);
// Includes paying fees for the use of the following channels.
let over_path_minimum_msat = amount_to_transfer_over_msat >= $candidate.htlc_minimum_msat() &&
amount_to_transfer_over_msat >= $next_hops_path_htlc_minimum_msat;
+ #[allow(unused_comparisons)] // $next_hops_path_htlc_minimum_msat is 0 in some calls so rustc complains
+ let may_overpay_to_meet_path_minimum_msat =
+ ((amount_to_transfer_over_msat < $candidate.htlc_minimum_msat() &&
+ recommended_value_msat > $candidate.htlc_minimum_msat()) ||
+ (amount_to_transfer_over_msat < $next_hops_path_htlc_minimum_msat &&
+ recommended_value_msat > $next_hops_path_htlc_minimum_msat));
+
+ let payment_failed_on_this_channel =
+ payment_params.previously_failed_channels.contains(&short_channel_id);
+
// If HTLC minimum is larger than the amount we're going to transfer, we shouldn't
- // bother considering this channel.
- // Since we're choosing amount_to_transfer_over_msat as maximum possible, it can
- // be only reduced later (not increased), so this channel should just be skipped
- // as not sufficient.
- if !over_path_minimum_msat && doesnt_exceed_cltv_delta_limit {
+ // bother considering this channel. If retrying with recommended_value_msat may
+ // allow us to hit the HTLC minimum limit, set htlc_minimum_limit so that we go
+ // around again with a higher amount.
+ if !contributes_sufficient_value || exceeds_max_path_length ||
+ exceeds_cltv_delta_limit || payment_failed_on_this_channel {
+ // Path isn't useful, ignore it and move on.
+ } else if may_overpay_to_meet_path_minimum_msat {
hit_minimum_limit = true;
- } else if contributes_sufficient_value && doesnt_exceed_cltv_delta_limit {
+ } else if over_path_minimum_msat {
// Note that low contribution here (limited by available_liquidity_msat)
// might violate htlc_minimum_msat on the hops which are next along the
// payment path (upstream to the payee). To avoid that, we recompute
}
}
- let path_penalty_msat = $next_hops_path_penalty_msat.saturating_add(
- scorer.channel_penalty_msat(short_channel_id, amount_to_transfer_over_msat,
- *available_liquidity_msat, &$src_node_id, &$dest_node_id));
+ let channel_usage = ChannelUsage {
+ amount_msat: amount_to_transfer_over_msat,
+ inflight_htlc_msat: used_liquidity_msat,
+ effective_capacity,
+ };
+ let channel_penalty_msat = scorer.channel_penalty_msat(
+ short_channel_id, &$src_node_id, &$dest_node_id, channel_usage
+ );
+ let path_penalty_msat = $next_hops_path_penalty_msat
+ .saturating_add(channel_penalty_msat);
let new_graph_node = RouteGraphNode {
node_id: $src_node_id,
lowest_fee_to_peer_through_node: total_fee_msat,
value_contribution_msat: value_contribution_msat,
path_htlc_minimum_msat,
path_penalty_msat,
+ path_length_to_node,
};
// Update the way of reaching $src_node_id with the given short_channel_id (from $dest_node_id),
} }
}
- let empty_node_features = NodeFeatures::empty();
+ let default_node_features = default_node_features();
+
// Find ways (channels with destination) to reach a given node and store them
// in the corresponding data structures (routing graph etc).
// $fee_to_target_msat represents how much it costs to reach to this node from the payee,
// meaning how much will be paid in fees after this node (to the best of our knowledge).
// This data can later be helpful to optimize routing (pay lower fees).
macro_rules! add_entries_to_cheapest_to_target_node {
- ( $node: expr, $node_id: expr, $fee_to_target_msat: expr, $next_hops_value_contribution: expr, $next_hops_path_htlc_minimum_msat: expr, $next_hops_path_penalty_msat: expr, $next_hops_cltv_delta: expr ) => {
+ ( $node: expr, $node_id: expr, $fee_to_target_msat: expr, $next_hops_value_contribution: expr,
+ $next_hops_path_htlc_minimum_msat: expr, $next_hops_path_penalty_msat: expr,
+ $next_hops_cltv_delta: expr, $next_hops_path_length: expr ) => {
let skip_node = if let Some(elem) = dist.get_mut(&$node_id) {
let was_processed = elem.was_processed;
elem.was_processed = true;
if let Some(first_channels) = first_hop_targets.get(&$node_id) {
for details in first_channels {
let candidate = CandidateRouteHop::FirstHop { details };
- add_entry!(candidate, our_node_id, $node_id, $fee_to_target_msat, $next_hops_value_contribution, $next_hops_path_htlc_minimum_msat, $next_hops_path_penalty_msat, $next_hops_cltv_delta);
+ add_entry!(candidate, our_node_id, $node_id, $fee_to_target_msat,
+ $next_hops_value_contribution,
+ $next_hops_path_htlc_minimum_msat, $next_hops_path_penalty_msat,
+ $next_hops_cltv_delta, $next_hops_path_length);
}
}
let features = if let Some(node_info) = $node.announcement_info.as_ref() {
&node_info.features
} else {
- &empty_node_features
+ &default_node_features
};
if !features.requires_unknown_bits() {
info: directed_channel.with_update().unwrap(),
short_channel_id: *chan_id,
};
- add_entry!(candidate, *source, $node_id, $fee_to_target_msat, $next_hops_value_contribution, $next_hops_path_htlc_minimum_msat, $next_hops_path_penalty_msat, $next_hops_cltv_delta);
+ add_entry!(candidate, *source, $node_id,
+ $fee_to_target_msat,
+ $next_hops_value_contribution,
+ $next_hops_path_htlc_minimum_msat,
+ $next_hops_path_penalty_msat,
+ $next_hops_cltv_delta, $next_hops_path_length);
}
}
}
// TODO: diversify by nodes (so that all paths aren't doomed if one node is offline).
'paths_collection: loop {
- // For every new path, start from scratch, except
- // bookkept_channels_liquidity_available_msat, which will improve
- // the further iterations of path finding. Also don't erase first_hop_targets.
+ // For every new path, start from scratch, except for used_channel_liquidities, which
+ // helps to avoid reusing previously selected paths in future iterations.
targets.clear();
dist.clear();
hit_minimum_limit = false;
if let Some(first_channels) = first_hop_targets.get(&payee_node_id) {
for details in first_channels {
let candidate = CandidateRouteHop::FirstHop { details };
- let added = add_entry!(candidate, our_node_id, payee_node_id, 0, path_value_msat, 0, 0u64, 0);
- log_trace!(logger, "{} direct route to payee via SCID {}", if added { "Added" } else { "Skipped" }, candidate.short_channel_id());
+ let added = add_entry!(candidate, our_node_id, payee_node_id, 0, path_value_msat,
+ 0, 0u64, 0, 0);
+ log_trace!(logger, "{} direct route to payee via SCID {}",
+ if added { "Added" } else { "Skipped" }, candidate.short_channel_id());
}
}
// If not, targets.pop() will not even let us enter the loop in step 2.
None => {},
Some(node) => {
- add_entries_to_cheapest_to_target_node!(node, payee_node_id, 0, path_value_msat, 0, 0u64, 0);
+ add_entries_to_cheapest_to_target_node!(node, payee_node_id, 0, path_value_msat, 0, 0u64, 0, 0);
},
}
let mut aggregate_next_hops_path_htlc_minimum_msat: u64 = 0;
let mut aggregate_next_hops_path_penalty_msat: u64 = 0;
let mut aggregate_next_hops_cltv_delta: u32 = 0;
+ let mut aggregate_next_hops_path_length: u8 = 0;
for (idx, (hop, prev_hop_id)) in hop_iter.zip(prev_hop_iter).enumerate() {
let source = NodeId::from_pubkey(&hop.src_node_id);
short_channel_id: hop.short_channel_id,
})
.unwrap_or_else(|| CandidateRouteHop::PrivateHop { hint: hop });
- let capacity_msat = candidate.effective_capacity().as_msat();
+
+ if !add_entry!(candidate, source, target, aggregate_next_hops_fee_msat,
+ path_value_msat, aggregate_next_hops_path_htlc_minimum_msat,
+ aggregate_next_hops_path_penalty_msat,
+ aggregate_next_hops_cltv_delta, aggregate_next_hops_path_length) {
+ // If this hop was not used then there is no use checking the preceding
+ // hops in the RouteHint. We can break by just searching for a direct
+ // channel between last checked hop and first_hop_targets.
+ hop_used = false;
+ }
+
+ let used_liquidity_msat = used_channel_liquidities
+ .get(&(hop.short_channel_id, source < target)).copied().unwrap_or(0);
+ let channel_usage = ChannelUsage {
+ amount_msat: final_value_msat + aggregate_next_hops_fee_msat,
+ inflight_htlc_msat: used_liquidity_msat,
+ effective_capacity: candidate.effective_capacity(),
+ };
+ let channel_penalty_msat = scorer.channel_penalty_msat(
+ hop.short_channel_id, &source, &target, channel_usage
+ );
aggregate_next_hops_path_penalty_msat = aggregate_next_hops_path_penalty_msat
- .saturating_add(scorer.channel_penalty_msat(hop.short_channel_id, final_value_msat, capacity_msat, &source, &target));
+ .saturating_add(channel_penalty_msat);
aggregate_next_hops_cltv_delta = aggregate_next_hops_cltv_delta
.saturating_add(hop.cltv_expiry_delta as u32);
- if !add_entry!(candidate, source, target, aggregate_next_hops_fee_msat, path_value_msat, aggregate_next_hops_path_htlc_minimum_msat, aggregate_next_hops_path_penalty_msat, aggregate_next_hops_cltv_delta) {
- // If this hop was not used then there is no use checking the preceding hops
- // in the RouteHint. We can break by just searching for a direct channel between
- // last checked hop and first_hop_targets
- hop_used = false;
- }
+ aggregate_next_hops_path_length = aggregate_next_hops_path_length
+ .saturating_add(1);
// Searching for a direct channel between last checked hop and first_hop_targets
if let Some(first_channels) = first_hop_targets.get(&NodeId::from_pubkey(&prev_hop_id)) {
for details in first_channels {
let candidate = CandidateRouteHop::FirstHop { details };
- add_entry!(candidate, our_node_id, NodeId::from_pubkey(&prev_hop_id), aggregate_next_hops_fee_msat, path_value_msat, aggregate_next_hops_path_htlc_minimum_msat, aggregate_next_hops_path_penalty_msat, aggregate_next_hops_cltv_delta);
+ add_entry!(candidate, our_node_id, NodeId::from_pubkey(&prev_hop_id),
+ aggregate_next_hops_fee_msat, path_value_msat,
+ aggregate_next_hops_path_htlc_minimum_msat,
+ aggregate_next_hops_path_penalty_msat, aggregate_next_hops_cltv_delta,
+ aggregate_next_hops_path_length);
}
}
// In the next values of the iterator, the aggregate fees already reflects
// the sum of value sent from payer (final_value_msat) and routing fees
// for the last node in the RouteHint. We need to just add the fees to
- // route through the current node so that the preceeding node (next iteration)
+ // route through the current node so that the preceding node (next iteration)
// can use it.
let hops_fee = compute_fees(aggregate_next_hops_fee_msat + final_value_msat, hop.fees)
.map_or(None, |inc| inc.checked_add(aggregate_next_hops_fee_msat));
if let Some(first_channels) = first_hop_targets.get(&NodeId::from_pubkey(&hop.src_node_id)) {
for details in first_channels {
let candidate = CandidateRouteHop::FirstHop { details };
- add_entry!(candidate, our_node_id, NodeId::from_pubkey(&hop.src_node_id), aggregate_next_hops_fee_msat, path_value_msat, aggregate_next_hops_path_htlc_minimum_msat, aggregate_next_hops_path_penalty_msat, aggregate_next_hops_cltv_delta);
+ add_entry!(candidate, our_node_id,
+ NodeId::from_pubkey(&hop.src_node_id),
+ aggregate_next_hops_fee_msat, path_value_msat,
+ aggregate_next_hops_path_htlc_minimum_msat,
+ aggregate_next_hops_path_penalty_msat,
+ aggregate_next_hops_cltv_delta,
+ aggregate_next_hops_path_length);
}
}
}
// Both these cases (and other cases except reaching recommended_value_msat) mean that
// paths_collection will be stopped because found_new_path==false.
// This is not necessarily a routing failure.
- 'path_construction: while let Some(RouteGraphNode { node_id, lowest_fee_to_node, total_cltv_delta, value_contribution_msat, path_htlc_minimum_msat, path_penalty_msat, .. }) = targets.pop() {
+ 'path_construction: while let Some(RouteGraphNode { node_id, lowest_fee_to_node, total_cltv_delta, value_contribution_msat, path_htlc_minimum_msat, path_penalty_msat, path_length_to_node, .. }) = targets.pop() {
// Since we're going payee-to-payer, hitting our node as a target means we should stop
// traversing the graph and arrange the path out of what we found.
if node_id == our_node_id {
let mut new_entry = dist.remove(&our_node_id).unwrap();
- let mut ordered_hops = vec!((new_entry.clone(), NodeFeatures::empty()));
+ let mut ordered_hops: Vec<(PathBuildingHop, NodeFeatures)> = vec!((new_entry.clone(), default_node_features.clone()));
'path_walk: loop {
let mut features_set = false;
if let Some(first_channels) = first_hop_targets.get(&ordered_hops.last().unwrap().0.node_id) {
for details in first_channels {
- if details.short_channel_id.unwrap() == ordered_hops.last().unwrap().0.candidate.short_channel_id() {
+ if details.get_outbound_payment_scid().unwrap() == ordered_hops.last().unwrap().0.candidate.short_channel_id() {
ordered_hops.last_mut().unwrap().1 = details.counterparty.features.to_context();
features_set = true;
break;
if let Some(node_info) = node.announcement_info.as_ref() {
ordered_hops.last_mut().unwrap().1 = node_info.features.clone();
} else {
- ordered_hops.last_mut().unwrap().1 = NodeFeatures::empty();
+ ordered_hops.last_mut().unwrap().1 = default_node_features.clone();
}
} else {
// We can fill in features for everything except hops which were
// so that fees paid for a HTLC forwarding on the current channel are
// associated with the previous channel (where they will be subtracted).
ordered_hops.last_mut().unwrap().0.fee_msat = new_entry.hop_use_fee_msat;
- ordered_hops.push((new_entry.clone(), NodeFeatures::empty()));
+ ordered_hops.push((new_entry.clone(), default_node_features.clone()));
}
ordered_hops.last_mut().unwrap().0.fee_msat = value_contribution_msat;
ordered_hops.last_mut().unwrap().0.hop_use_fee_msat = 0;
// Remember that we used these channels so that we don't rely
// on the same liquidity in future paths.
let mut prevented_redundant_path_selection = false;
- for (payment_hop, _) in payment_path.hops.iter() {
- let channel_liquidity_available_msat = bookkept_channels_liquidity_available_msat.get_mut(&payment_hop.candidate.short_channel_id()).unwrap();
- let mut spent_on_hop_msat = value_contribution_msat;
- let next_hops_fee_msat = payment_hop.next_hops_fee_msat;
- spent_on_hop_msat += next_hops_fee_msat;
- if spent_on_hop_msat == *channel_liquidity_available_msat {
+ let prev_hop_iter = core::iter::once(&our_node_id)
+ .chain(payment_path.hops.iter().map(|(hop, _)| &hop.node_id));
+ for (prev_hop, (hop, _)) in prev_hop_iter.zip(payment_path.hops.iter()) {
+ let spent_on_hop_msat = value_contribution_msat + hop.next_hops_fee_msat;
+ let used_liquidity_msat = used_channel_liquidities
+ .entry((hop.candidate.short_channel_id(), *prev_hop < hop.node_id))
+ .and_modify(|used_liquidity_msat| *used_liquidity_msat += spent_on_hop_msat)
+ .or_insert(spent_on_hop_msat);
+ let hop_capacity = hop.candidate.effective_capacity();
+ let hop_max_msat = max_htlc_from_capacity(hop_capacity, channel_saturation_pow_half);
+ if *used_liquidity_msat == hop_max_msat {
// If this path used all of this channel's available liquidity, we know
// this path will not be selected again in the next loop iteration.
prevented_redundant_path_selection = true;
}
- *channel_liquidity_available_msat -= spent_on_hop_msat;
+ debug_assert!(*used_liquidity_msat <= hop_max_msat);
}
if !prevented_redundant_path_selection {
// If we weren't capped by hitting a liquidity limit on a channel in the path,
// we'll probably end up picking the same path again on the next iteration.
// Decrease the available liquidity of a hop in the middle of the path.
let victim_scid = payment_path.hops[(payment_path.hops.len()) / 2].0.candidate.short_channel_id();
+ let exhausted = u64::max_value();
log_trace!(logger, "Disabling channel {} for future path building iterations to avoid duplicates.", victim_scid);
- let victim_liquidity = bookkept_channels_liquidity_available_msat.get_mut(&victim_scid).unwrap();
- *victim_liquidity = 0;
+ *used_channel_liquidities.entry((victim_scid, false)).or_default() = exhausted;
+ *used_channel_liquidities.entry((victim_scid, true)).or_default() = exhausted;
}
- // Track the total amount all our collected paths allow to send so that we:
- // - know when to stop looking for more paths
- // - know which of the hops are useless considering how much more sats we need
- // (contributes_sufficient_value)
+ // Track the total amount all our collected paths allow to send so that we know
+ // when to stop looking for more paths
already_collected_value_msat += value_contribution_msat;
payment_paths.push(payment_path);
match network_nodes.get(&node_id) {
None => {},
Some(node) => {
- add_entries_to_cheapest_to_target_node!(node, node_id, lowest_fee_to_node, value_contribution_msat, path_htlc_minimum_msat, path_penalty_msat, total_cltv_delta);
+ add_entries_to_cheapest_to_target_node!(node, node_id, lowest_fee_to_node,
+ value_contribution_msat, path_htlc_minimum_msat, path_penalty_msat,
+ total_cltv_delta, path_length_to_node);
},
}
}
if !allow_mpp {
+ if !found_new_path && channel_saturation_pow_half != 0 {
+ channel_saturation_pow_half = 0;
+ continue 'paths_collection;
+ }
// If we don't support MPP, no use trying to gather more value ever.
break 'paths_collection;
}
// iteration.
// In the latter case, making another path finding attempt won't help,
// because we deterministically terminated the search due to low liquidity.
- if already_collected_value_msat >= recommended_value_msat || !found_new_path {
+ if !found_new_path && channel_saturation_pow_half != 0 {
+ channel_saturation_pow_half = 0;
+ } else if already_collected_value_msat >= recommended_value_msat || !found_new_path {
log_trace!(logger, "Have now collected {} msat (seeking {} msat) in paths. Last path loop {} a new path.",
already_collected_value_msat, recommended_value_msat, if found_new_path { "found" } else { "did not find" });
break 'paths_collection;
// Step (9).
// Select the best route by lowest total cost.
drawn_routes.sort_unstable_by_key(|paths| paths.iter().map(|path| path.get_cost_msat()).sum::<u64>());
+ let selected_route = drawn_routes.first_mut().unwrap();
+
+ // Sort by the path itself and combine redundant paths.
+ // Note that we sort by SCIDs alone as its simpler but when combining we have to ensure we
+ // compare both SCIDs and NodeIds as individual nodes may use random aliases causing collisions
+ // across nodes.
+ selected_route.sort_unstable_by_key(|path| {
+ let mut key = [0u64; MAX_PATH_LENGTH_ESTIMATE as usize];
+ debug_assert!(path.hops.len() <= key.len());
+ for (scid, key) in path.hops.iter().map(|h| h.0.candidate.short_channel_id()).zip(key.iter_mut()) {
+ *key = scid;
+ }
+ key
+ });
+ for idx in 0..(selected_route.len() - 1) {
+ if idx + 1 >= selected_route.len() { break; }
+ if iter_equal(selected_route[idx ].hops.iter().map(|h| (h.0.candidate.short_channel_id(), h.0.node_id)),
+ selected_route[idx + 1].hops.iter().map(|h| (h.0.candidate.short_channel_id(), h.0.node_id))) {
+ let new_value = selected_route[idx].get_value_msat() + selected_route[idx + 1].get_value_msat();
+ selected_route[idx].update_value_and_recompute_fees(new_value);
+ selected_route.remove(idx + 1);
+ }
+ }
+
let mut selected_paths = Vec::<Vec<Result<RouteHop, LightningError>>>::new();
- for payment_path in drawn_routes.first().unwrap() {
+ for payment_path in selected_route {
let mut path = payment_path.hops.iter().map(|(payment_hop, node_features)| {
Ok(RouteHop {
pubkey: PublicKey::from_slice(payment_hop.node_id.as_slice()).map_err(|_| LightningError{err: format!("Public key {:?} is invalid", &payment_hop.node_id), action: ErrorAction::IgnoreAndLog(Level::Trace)})?,
});
selected_paths.push(path);
}
+ // Make sure we would never create a route with more paths than we allow.
+ debug_assert!(selected_paths.len() <= payment_params.max_path_count.into());
if let Some(features) = &payment_params.features {
for path in selected_paths.iter_mut() {
// destination, if the remaining CLTV expiry delta exactly matches a feasible path in the network
// graph. In order to improve privacy, this method obfuscates the CLTV expiry deltas along the
// payment path by adding a randomized 'shadow route' offset to the final hop.
-fn add_random_cltv_offset(route: &mut Route, payment_params: &PaymentParameters, network_graph: &ReadOnlyNetworkGraph, random_seed_bytes: &[u8; 32]) {
+fn add_random_cltv_offset(route: &mut Route, payment_params: &PaymentParameters,
+ network_graph: &ReadOnlyNetworkGraph, random_seed_bytes: &[u8; 32]
+) {
let network_channels = network_graph.channels();
let network_nodes = network_graph.nodes();
}
}
+/// Construct a route from us (payer) to the target node (payee) via the given hops (which should
+/// exclude the payer, but include the payee). This may be useful, e.g., for probing the chosen path.
+///
+/// Re-uses logic from `find_route`, so the restrictions described there also apply here.
+pub fn build_route_from_hops<L: Deref, GL: Deref>(
+ our_node_pubkey: &PublicKey, hops: &[PublicKey], route_params: &RouteParameters,
+ network_graph: &NetworkGraph<GL>, logger: L, random_seed_bytes: &[u8; 32]
+) -> Result<Route, LightningError>
+where L::Target: Logger, GL::Target: Logger {
+ let graph_lock = network_graph.read_only();
+ let mut route = build_route_from_hops_internal(
+ our_node_pubkey, hops, &route_params.payment_params, &graph_lock,
+ route_params.final_value_msat, route_params.final_cltv_expiry_delta, logger, random_seed_bytes)?;
+ add_random_cltv_offset(&mut route, &route_params.payment_params, &graph_lock, random_seed_bytes);
+ Ok(route)
+}
+
+fn build_route_from_hops_internal<L: Deref>(
+ our_node_pubkey: &PublicKey, hops: &[PublicKey], payment_params: &PaymentParameters,
+ network_graph: &ReadOnlyNetworkGraph, final_value_msat: u64, final_cltv_expiry_delta: u32,
+ logger: L, random_seed_bytes: &[u8; 32]
+) -> Result<Route, LightningError> where L::Target: Logger {
+
+ struct HopScorer {
+ our_node_id: NodeId,
+ hop_ids: [Option<NodeId>; MAX_PATH_LENGTH_ESTIMATE as usize],
+ }
+
+ impl Score for HopScorer {
+ fn channel_penalty_msat(&self, _short_channel_id: u64, source: &NodeId, target: &NodeId,
+ _usage: ChannelUsage) -> u64
+ {
+ let mut cur_id = self.our_node_id;
+ for i in 0..self.hop_ids.len() {
+ if let Some(next_id) = self.hop_ids[i] {
+ if cur_id == *source && next_id == *target {
+ return 0;
+ }
+ cur_id = next_id;
+ } else {
+ break;
+ }
+ }
+ u64::max_value()
+ }
+
+ fn payment_path_failed(&mut self, _path: &[&RouteHop], _short_channel_id: u64) {}
+
+ fn payment_path_successful(&mut self, _path: &[&RouteHop]) {}
+
+ fn probe_failed(&mut self, _path: &[&RouteHop], _short_channel_id: u64) {}
+
+ fn probe_successful(&mut self, _path: &[&RouteHop]) {}
+ }
+
+ impl<'a> Writeable for HopScorer {
+ #[inline]
+ fn write<W: Writer>(&self, _w: &mut W) -> Result<(), io::Error> {
+ unreachable!();
+ }
+ }
+
+ if hops.len() > MAX_PATH_LENGTH_ESTIMATE.into() {
+ return Err(LightningError{err: "Cannot build a route exceeding the maximum path length.".to_owned(), action: ErrorAction::IgnoreError});
+ }
+
+ let our_node_id = NodeId::from_pubkey(our_node_pubkey);
+ let mut hop_ids = [None; MAX_PATH_LENGTH_ESTIMATE as usize];
+ for i in 0..hops.len() {
+ hop_ids[i] = Some(NodeId::from_pubkey(&hops[i]));
+ }
+
+ let scorer = HopScorer { our_node_id, hop_ids };
+
+ get_route(our_node_pubkey, payment_params, network_graph, None, final_value_msat,
+ final_cltv_expiry_delta, logger, &scorer, random_seed_bytes)
+}
+
#[cfg(test)]
mod tests {
- use routing::network_graph::{NetworkGraph, NetGraphMsgHandler, NodeId};
- use routing::router::{get_route, add_random_cltv_offset, PaymentParameters, Route, RouteHint, RouteHintHop, RouteHop, RoutingFees, DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA};
- use routing::scoring::Score;
+ use routing::gossip::{NetworkGraph, P2PGossipSync, NodeId, EffectiveCapacity};
+ use routing::router::{get_route, build_route_from_hops_internal, add_random_cltv_offset, default_node_features,
+ PaymentParameters, Route, RouteHint, RouteHintHop, RouteHop, RoutingFees,
+ DEFAULT_MAX_TOTAL_CLTV_EXPIRY_DELTA, MAX_PATH_LENGTH_ESTIMATE};
+ use routing::scoring::{ChannelUsage, Score, ProbabilisticScorer, ProbabilisticScoringParameters};
use chain::transaction::OutPoint;
use chain::keysinterface::KeysInterface;
use ln::features::{ChannelFeatures, InitFeatures, InvoiceFeatures, NodeFeatures};
use ln::msgs::{ErrorAction, LightningError, OptionalField, UnsignedChannelAnnouncement, ChannelAnnouncement, RoutingMessageHandler,
- NodeAnnouncement, UnsignedNodeAnnouncement, ChannelUpdate, UnsignedChannelUpdate};
+ NodeAnnouncement, UnsignedNodeAnnouncement, ChannelUpdate, UnsignedChannelUpdate};
use ln::channelmanager;
use util::test_utils;
use util::chacha20::ChaCha20;
use hex;
- use bitcoin::secp256k1::key::{PublicKey,SecretKey};
+ use bitcoin::secp256k1::{PublicKey,SecretKey};
use bitcoin::secp256k1::{Secp256k1, All};
use prelude::*;
use sync::{self, Arc};
+ use core::convert::TryInto;
+
fn get_channel_details(short_channel_id: Option<u64>, node_id: PublicKey,
features: InitFeatures, outbound_capacity_msat: u64) -> channelmanager::ChannelDetails {
channelmanager::ChannelDetails {
node_id,
unspendable_punishment_reserve: 0,
forwarding_info: None,
+ outbound_htlc_minimum_msat: None,
+ outbound_htlc_maximum_msat: None,
},
funding_txo: Some(OutPoint { txid: bitcoin::Txid::from_slice(&[0; 32]).unwrap(), index: 0 }),
channel_type: None,
short_channel_id,
+ outbound_scid_alias: None,
inbound_scid_alias: None,
channel_value_satoshis: 0,
user_channel_id: 0,
balance_msat: 0,
outbound_capacity_msat,
+ next_outbound_htlc_limit_msat: outbound_capacity_msat,
inbound_capacity_msat: 42,
unspendable_punishment_reserve: None,
confirmations_required: None,
force_close_spend_delay: None,
- is_outbound: true, is_funding_locked: true,
+ is_outbound: true, is_channel_ready: true,
is_usable: true, is_public: true,
+ inbound_htlc_minimum_msat: None,
+ inbound_htlc_maximum_msat: None,
+ config: None,
}
}
// Using the same keys for LN and BTC ids
fn add_channel(
- net_graph_msg_handler: &NetGraphMsgHandler<Arc<NetworkGraph>, Arc<test_utils::TestChainSource>, Arc<test_utils::TestLogger>>,
+ gossip_sync: &P2PGossipSync<Arc<NetworkGraph<Arc<test_utils::TestLogger>>>, Arc<test_utils::TestChainSource>, Arc<test_utils::TestLogger>>,
secp_ctx: &Secp256k1<All>, node_1_privkey: &SecretKey, node_2_privkey: &SecretKey, features: ChannelFeatures, short_channel_id: u64
) {
let node_id_1 = PublicKey::from_secret_key(&secp_ctx, node_1_privkey);
let msghash = hash_to_message!(&Sha256dHash::hash(&unsigned_announcement.encode()[..])[..]);
let valid_announcement = ChannelAnnouncement {
- node_signature_1: secp_ctx.sign(&msghash, node_1_privkey),
- node_signature_2: secp_ctx.sign(&msghash, node_2_privkey),
- bitcoin_signature_1: secp_ctx.sign(&msghash, node_1_privkey),
- bitcoin_signature_2: secp_ctx.sign(&msghash, node_2_privkey),
+ node_signature_1: secp_ctx.sign_ecdsa(&msghash, node_1_privkey),
+ node_signature_2: secp_ctx.sign_ecdsa(&msghash, node_2_privkey),
+ bitcoin_signature_1: secp_ctx.sign_ecdsa(&msghash, node_1_privkey),
+ bitcoin_signature_2: secp_ctx.sign_ecdsa(&msghash, node_2_privkey),
contents: unsigned_announcement.clone(),
};
- match net_graph_msg_handler.handle_channel_announcement(&valid_announcement) {
+ match gossip_sync.handle_channel_announcement(&valid_announcement) {
Ok(res) => assert!(res),
_ => panic!()
};
}
fn update_channel(
- net_graph_msg_handler: &NetGraphMsgHandler<Arc<NetworkGraph>, Arc<test_utils::TestChainSource>, Arc<test_utils::TestLogger>>,
+ gossip_sync: &P2PGossipSync<Arc<NetworkGraph<Arc<test_utils::TestLogger>>>, Arc<test_utils::TestChainSource>, Arc<test_utils::TestLogger>>,
secp_ctx: &Secp256k1<All>, node_privkey: &SecretKey, update: UnsignedChannelUpdate
) {
let msghash = hash_to_message!(&Sha256dHash::hash(&update.encode()[..])[..]);
let valid_channel_update = ChannelUpdate {
- signature: secp_ctx.sign(&msghash, node_privkey),
+ signature: secp_ctx.sign_ecdsa(&msghash, node_privkey),
contents: update.clone()
};
- match net_graph_msg_handler.handle_channel_update(&valid_channel_update) {
+ match gossip_sync.handle_channel_update(&valid_channel_update) {
Ok(res) => assert!(res),
Err(_) => panic!()
};
}
fn add_or_update_node(
- net_graph_msg_handler: &NetGraphMsgHandler<Arc<NetworkGraph>, Arc<test_utils::TestChainSource>, Arc<test_utils::TestLogger>>,
+ gossip_sync: &P2PGossipSync<Arc<NetworkGraph<Arc<test_utils::TestLogger>>>, Arc<test_utils::TestChainSource>, Arc<test_utils::TestLogger>>,
secp_ctx: &Secp256k1<All>, node_privkey: &SecretKey, features: NodeFeatures, timestamp: u32
) {
let node_id = PublicKey::from_secret_key(&secp_ctx, node_privkey);
};
let msghash = hash_to_message!(&Sha256dHash::hash(&unsigned_announcement.encode()[..])[..]);
let valid_announcement = NodeAnnouncement {
- signature: secp_ctx.sign(&msghash, node_privkey),
+ signature: secp_ctx.sign_ecdsa(&msghash, node_privkey),
contents: unsigned_announcement.clone()
};
- match net_graph_msg_handler.handle_node_announcement(&valid_announcement) {
+ match gossip_sync.handle_node_announcement(&valid_announcement) {
Ok(_) => (),
Err(_) => panic!()
};
}
fn get_nodes(secp_ctx: &Secp256k1<All>) -> (SecretKey, PublicKey, Vec<SecretKey>, Vec<PublicKey>) {
- let privkeys: Vec<SecretKey> = (2..10).map(|i| {
+ let privkeys: Vec<SecretKey> = (2..22).map(|i| {
SecretKey::from_slice(&hex::decode(format!("{:02x}", i).repeat(32)).unwrap()[..]).unwrap()
}).collect();
}
}
+ fn build_line_graph() -> (
+ Secp256k1<All>, sync::Arc<NetworkGraph<Arc<test_utils::TestLogger>>>,
+ P2PGossipSync<sync::Arc<NetworkGraph<Arc<test_utils::TestLogger>>>, sync::Arc<test_utils::TestChainSource>, sync::Arc<test_utils::TestLogger>>,
+ sync::Arc<test_utils::TestChainSource>, sync::Arc<test_utils::TestLogger>,
+ ) {
+ let secp_ctx = Secp256k1::new();
+ let logger = Arc::new(test_utils::TestLogger::new());
+ let chain_monitor = Arc::new(test_utils::TestChainSource::new(Network::Testnet));
+ let genesis_hash = genesis_block(Network::Testnet).header.block_hash();
+ let network_graph = Arc::new(NetworkGraph::new(genesis_hash, Arc::clone(&logger)));
+ let gossip_sync = P2PGossipSync::new(Arc::clone(&network_graph), None, Arc::clone(&logger));
+
+ // Build network from our_id to node 19:
+ // our_id -1(1)2- node0 -1(2)2- node1 - ... - node19
+ let (our_privkey, _, privkeys, _) = get_nodes(&secp_ctx);
+
+ for (idx, (cur_privkey, next_privkey)) in core::iter::once(&our_privkey)
+ .chain(privkeys.iter()).zip(privkeys.iter()).enumerate() {
+ let cur_short_channel_id = (idx as u64) + 1;
+ add_channel(&gossip_sync, &secp_ctx, &cur_privkey, &next_privkey,
+ ChannelFeatures::from_le_bytes(id_to_feature_flags(1)), cur_short_channel_id);
+ update_channel(&gossip_sync, &secp_ctx, &cur_privkey, UnsignedChannelUpdate {
+ chain_hash: genesis_block(Network::Testnet).header.block_hash(),
+ short_channel_id: cur_short_channel_id,
+ timestamp: idx as u32,
+ flags: 0,
+ cltv_expiry_delta: 0,
+ htlc_minimum_msat: 0,
+ htlc_maximum_msat: OptionalField::Absent,
+ fee_base_msat: 0,
+ fee_proportional_millionths: 0,
+ excess_data: Vec::new()
+ });
+ update_channel(&gossip_sync, &secp_ctx, &next_privkey, UnsignedChannelUpdate {
+ chain_hash: genesis_block(Network::Testnet).header.block_hash(),
+ short_channel_id: cur_short_channel_id,
+ timestamp: (idx as u32)+1,
+ flags: 1,
+ cltv_expiry_delta: 0,
+ htlc_minimum_msat: 0,
+ htlc_maximum_msat: OptionalField::Absent,
+ fee_base_msat: 0,
+ fee_proportional_millionths: 0,
+ excess_data: Vec::new()
+ });
+ add_or_update_node(&gossip_sync, &secp_ctx, next_privkey,
+ NodeFeatures::from_le_bytes(id_to_feature_flags(1)), 0);
+ }
+
+ (secp_ctx, network_graph, gossip_sync, chain_monitor, logger)
+ }
+
fn build_graph() -> (
Secp256k1<All>,
- sync::Arc<NetworkGraph>,
- NetGraphMsgHandler<sync::Arc<NetworkGraph>, sync::Arc<test_utils::TestChainSource>, sync::Arc<crate::util::test_utils::TestLogger>>,
+ sync::Arc<NetworkGraph<Arc<test_utils::TestLogger>>>,
+ P2PGossipSync<sync::Arc<NetworkGraph<Arc<test_utils::TestLogger>>>, sync::Arc<test_utils::TestChainSource>, sync::Arc<test_utils::TestLogger>>,
sync::Arc<test_utils::TestChainSource>,
sync::Arc<test_utils::TestLogger>,
) {
let secp_ctx = Secp256k1::new();
let logger = Arc::new(test_utils::TestLogger::new());
let chain_monitor = Arc::new(test_utils::TestChainSource::new(Network::Testnet));
- let network_graph = Arc::new(NetworkGraph::new(genesis_block(Network::Testnet).header.block_hash()));
- let net_graph_msg_handler = NetGraphMsgHandler::new(Arc::clone(&network_graph), None, Arc::clone(&logger));
+ let genesis_hash = genesis_block(Network::Testnet).header.block_hash();
+ let network_graph = Arc::new(NetworkGraph::new(genesis_hash, Arc::clone(&logger)));
+ let gossip_sync = P2PGossipSync::new(Arc::clone(&network_graph), None, Arc::clone(&logger));
// Build network from our_id to node6:
//
// -1(1)2- node0 -1(3)2-
let (our_privkey, _, privkeys, _) = get_nodes(&secp_ctx);
- add_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, &privkeys[0], ChannelFeatures::from_le_bytes(id_to_feature_flags(1)), 1);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ 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, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 1,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[0], NodeFeatures::from_le_bytes(id_to_feature_flags(1)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[0], NodeFeatures::from_le_bytes(id_to_feature_flags(1)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, &privkeys[1], ChannelFeatures::from_le_bytes(id_to_feature_flags(2)), 2);
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &our_privkey, &privkeys[1], ChannelFeatures::from_le_bytes(id_to_feature_flags(2)), 2);
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 1,
fee_proportional_millionths: u32::max_value(),
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 1,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[1], NodeFeatures::from_le_bytes(id_to_feature_flags(2)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[1], NodeFeatures::from_le_bytes(id_to_feature_flags(2)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, &privkeys[7], ChannelFeatures::from_le_bytes(id_to_feature_flags(12)), 12);
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &our_privkey, &privkeys[7], ChannelFeatures::from_le_bytes(id_to_feature_flags(12)), 12);
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 1,
fee_proportional_millionths: u32::max_value(),
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 1,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[7], NodeFeatures::from_le_bytes(id_to_feature_flags(8)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[7], NodeFeatures::from_le_bytes(id_to_feature_flags(8)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(3)), 3);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[0], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(3)), 3);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 1,
excess_data: Vec::new()
});
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(4)), 4);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[1], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(4)), 4);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 1,
fee_proportional_millionths: 1000000,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 1,
excess_data: Vec::new()
});
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(13)), 13);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[7], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(13)), 13);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 1,
fee_proportional_millionths: 2000000,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 1,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[2], NodeFeatures::from_le_bytes(id_to_feature_flags(3)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[2], NodeFeatures::from_le_bytes(id_to_feature_flags(3)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], &privkeys[4], ChannelFeatures::from_le_bytes(id_to_feature_flags(6)), 6);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[2], &privkeys[4], ChannelFeatures::from_le_bytes(id_to_feature_flags(6)), 6);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 1,
excess_data: Vec::new(),
});
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(11)), 11);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[4], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(11)), 11);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 11,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[3], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[3], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 11,
timestamp: 1,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[4], NodeFeatures::from_le_bytes(id_to_feature_flags(5)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[4], NodeFeatures::from_le_bytes(id_to_feature_flags(5)), 0);
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[3], NodeFeatures::from_le_bytes(id_to_feature_flags(4)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[3], NodeFeatures::from_le_bytes(id_to_feature_flags(4)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], &privkeys[5], ChannelFeatures::from_le_bytes(id_to_feature_flags(7)), 7);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[2], &privkeys[5], ChannelFeatures::from_le_bytes(id_to_feature_flags(7)), 7);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 1,
fee_proportional_millionths: 1000000,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[5], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[5], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 1,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[5], NodeFeatures::from_le_bytes(id_to_feature_flags(6)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[5], NodeFeatures::from_le_bytes(id_to_feature_flags(6)), 0);
- (secp_ctx, network_graph, net_graph_msg_handler, chain_monitor, logger)
+ (secp_ctx, network_graph, gossip_sync, chain_monitor, logger)
}
#[test]
#[test]
fn htlc_minimum_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let payment_params = PaymentParameters::from_node_id(nodes[2]);
let scorer = test_utils::TestScorer::with_penalty(0);
// Simple route to 2 via 1
// Disable other paths
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 2,
// Check against amount_to_transfer_over_msat.
// Set minimal HTLC of 200_000_000 msat.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 3,
// Second hop only allows to forward 199_999_999 at most, thus not allowing the first hop to
// be used.
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 3,
} else { panic!(); }
// Lift the restriction on the first hop.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 4,
#[test]
fn htlc_minimum_overpay_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let payment_params = PaymentParameters::from_node_id(nodes[2]).with_features(InvoiceFeatures::known());
let scorer = test_utils::TestScorer::with_penalty(0);
// A route to node#2 via two paths.
// One path allows transferring 35-40 sats, another one also allows 35-40 sats.
// Thus, they can't send 60 without overpaying.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 3,
});
// Make 0 fee.
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 2,
});
// Disable other paths
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 3,
// Now, test that if there are 2 paths, a "cheaper" by fee path wouldn't be prioritized
// while taking even more fee to match htlc_minimum_msat.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 4,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 3,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 4,
#[test]
fn disable_channels_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let payment_params = PaymentParameters::from_node_id(nodes[2]);
let scorer = test_utils::TestScorer::with_penalty(0);
let random_seed_bytes = keys_manager.get_secure_random_bytes();
// // Disable channels 4 and 12 by flags=2
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
#[test]
fn disable_node_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (_, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let payment_params = PaymentParameters::from_node_id(nodes[2]);
let scorer = test_utils::TestScorer::with_penalty(0);
// Disable nodes 1, 2, and 8 by requiring unknown feature bits
let mut unknown_features = NodeFeatures::known();
unknown_features.set_unknown_feature_required();
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[0], unknown_features.clone(), 1);
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[1], unknown_features.clone(), 1);
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[7], unknown_features.clone(), 1);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[0], unknown_features.clone(), 1);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[1], unknown_features.clone(), 1);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[7], unknown_features.clone(), 1);
// If all nodes require some features we don't understand, route should fail
if let Err(LightningError{err, action: ErrorAction::IgnoreError}) = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 100, 42, Arc::clone(&logger), &scorer, &random_seed_bytes) {
assert_eq!(route.paths[0][4].short_channel_id, 8);
assert_eq!(route.paths[0][4].fee_msat, 100);
assert_eq!(route.paths[0][4].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][4].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][4].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][4].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
}
assert_eq!(route.paths[0][4].short_channel_id, 8);
assert_eq!(route.paths[0][4].fee_msat, 100);
assert_eq!(route.paths[0][4].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][4].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][4].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][4].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
}
#[test]
fn multi_hint_last_hops_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (_, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let last_hops = multi_hop_last_hops_hint([nodes[2], nodes[3]]);
let payment_params = PaymentParameters::from_node_id(nodes[6]).with_route_hints(last_hops.clone());
// Test shows that multiple hop hints are considered.
// Disabling channels 6 & 7 by flags=2
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 2,
assert_eq!(route.paths[0][3].short_channel_id, last_hops[0].0[1].short_channel_id);
assert_eq!(route.paths[0][3].fee_msat, 100);
assert_eq!(route.paths[0][3].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][3].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][3].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][3].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
}
#[test]
fn private_multi_hint_last_hops_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (_, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let non_announced_privkey = SecretKey::from_slice(&hex::decode(format!("{:02x}", 0xf0).repeat(32)).unwrap()[..]).unwrap();
// Test shows that multiple hop hints are considered.
// Disabling channels 6 & 7 by flags=2
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 2,
assert_eq!(route.paths[0][2].short_channel_id, last_hops[0].0[0].short_channel_id);
assert_eq!(route.paths[0][2].fee_msat, 0);
assert_eq!(route.paths[0][2].cltv_expiry_delta, 129);
- assert_eq!(route.paths[0][2].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][2].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][2].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
assert_eq!(route.paths[0][3].pubkey, nodes[6]);
assert_eq!(route.paths[0][3].short_channel_id, last_hops[0].0[1].short_channel_id);
assert_eq!(route.paths[0][3].fee_msat, 100);
assert_eq!(route.paths[0][3].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][3].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][3].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][3].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
}
assert_eq!(route.paths[0][4].short_channel_id, 8);
assert_eq!(route.paths[0][4].fee_msat, 100);
assert_eq!(route.paths[0][4].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][4].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][4].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][4].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
}
assert_eq!(route.paths[0][1].short_channel_id, 8);
assert_eq!(route.paths[0][1].fee_msat, 100);
assert_eq!(route.paths[0][1].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][1].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][1].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][1].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
last_hops[0].0[0].fees.base_msat = 1000;
assert_eq!(route.paths[0][3].short_channel_id, 10);
assert_eq!(route.paths[0][3].fee_msat, 100);
assert_eq!(route.paths[0][3].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][3].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][3].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][3].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
// ...but still use 8 for larger payments as 6 has a variable feerate
assert_eq!(route.paths[0][4].short_channel_id, 8);
assert_eq!(route.paths[0][4].fee_msat, 2000);
assert_eq!(route.paths[0][4].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][4].node_features.le_flags(), &Vec::<u8>::new()); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][4].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][4].channel_features.le_flags(), &Vec::<u8>::new()); // We can't learn any flags from invoices, sadly
}
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
let random_seed_bytes = keys_manager.get_secure_random_bytes();
- get_route(&source_node_id, &payment_params, &NetworkGraph::new(genesis_block(Network::Testnet).header.block_hash()).read_only(),
- Some(&our_chans.iter().collect::<Vec<_>>()), route_val, 42, &test_utils::TestLogger::new(), &scorer, &random_seed_bytes)
+ let genesis_hash = genesis_block(Network::Testnet).header.block_hash();
+ let logger = test_utils::TestLogger::new();
+ let network_graph = NetworkGraph::new(genesis_hash, &logger);
+ let route = get_route(&source_node_id, &payment_params, &network_graph.read_only(),
+ Some(&our_chans.iter().collect::<Vec<_>>()), route_val, 42, &logger, &scorer, &random_seed_bytes);
+ route
}
#[test]
assert_eq!(route.paths[0][1].short_channel_id, 8);
assert_eq!(route.paths[0][1].fee_msat, 1000000);
assert_eq!(route.paths[0][1].cltv_expiry_delta, 42);
- assert_eq!(route.paths[0][1].node_features.le_flags(), &[0; 0]); // We dont pass flags in from invoices yet
+ assert_eq!(route.paths[0][1].node_features.le_flags(), default_node_features().le_flags()); // We dont pass flags in from invoices yet
assert_eq!(route.paths[0][1].channel_features.le_flags(), &[0; 0]); // We can't learn any flags from invoices, sadly
}
fn available_amount_while_routing_test() {
// Tests whether we choose the correct available channel amount while routing.
- let (secp_ctx, network_graph, mut net_graph_msg_handler, chain_monitor, logger) = build_graph();
+ let (secp_ctx, network_graph, mut gossip_sync, chain_monitor, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
// our node to node2 via node0: channels {1, 3}.
// First disable all other paths.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
// Make the first channel (#1) very permissive,
// and we will be testing all limits on the second channel.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 2,
// First, let's see if routing works if we have absolutely no idea about the available amount.
// In this case, it should be set to 250_000 sats.
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 2,
assert_eq!(path.last().unwrap().fee_msat, 250_000_000);
}
- // Check that setting outbound_capacity_msat in first_hops limits the channels.
+ // Check that setting next_outbound_htlc_limit_msat in first_hops limits the channels.
// Disable channel #1 and use another first hop.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 3,
excess_data: Vec::new()
});
- // Now, limit the first_hop by the outbound_capacity_msat of 200_000 sats.
+ // Now, limit the first_hop by the next_outbound_htlc_limit_msat of 200_000 sats.
let our_chans = vec![get_channel_details(Some(42), nodes[0].clone(), InitFeatures::from_le_bytes(vec![0b11]), 200_000_000)];
{
}
// Enable channel #1 back.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 4,
// Now let's see if routing works if we know only htlc_maximum_msat.
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 3,
// We can't change UTXO capacity on the fly, so we'll disable
// the existing channel and add another one with the capacity we need.
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 4,
.push_opcode(opcodes::all::OP_CHECKMULTISIG).into_script().to_v0_p2wsh();
*chain_monitor.utxo_ret.lock().unwrap() = Ok(TxOut { value: 15, script_pubkey: good_script.clone() });
- net_graph_msg_handler.add_chain_access(Some(chain_monitor));
+ gossip_sync.add_chain_access(Some(chain_monitor));
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(3)), 333);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[0], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(3)), 333);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 333,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 333,
timestamp: 1,
}
// Now let's see if routing chooses htlc_maximum_msat over UTXO capacity.
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 333,
timestamp: 6,
fn available_liquidity_last_hop_test() {
// Check that available liquidity properly limits the path even when only
// one of the latter hops is limited.
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
// Total capacity: 50 sats.
// Disable other potential paths.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 2,
// Limit capacities
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 11,
timestamp: 2,
#[test]
fn ignore_fee_first_hop_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
let payment_params = PaymentParameters::from_node_id(nodes[2]);
// Path via node0 is channels {1, 3}. Limit them to 100 and 50 sats (total limit 50).
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 2,
#[test]
fn simple_mpp_route_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
let random_seed_bytes = keys_manager.get_secure_random_bytes();
- let payment_params = PaymentParameters::from_node_id(nodes[2]).with_features(InvoiceFeatures::known());
+ let payment_params = PaymentParameters::from_node_id(nodes[2])
+ .with_features(InvoiceFeatures::known());
// We need a route consisting of 3 paths:
// From our node to node2 via node0, node7, node1 (three paths one hop each).
// Their aggregate capacity will be 50 + 60 + 180 = 290 sats.
// Path via node0 is channels {1, 3}. Limit them to 100 and 50 sats (total limit 50).
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 2,
// Path via node7 is channels {12, 13}. Limit them to 60 and 60 sats
// (total limit 60).
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
// Path via node1 is channels {2, 4}. Limit them to 200 and 180 sats
// (total capacity 180 sats).
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 2,
{
// Attempt to route more than available results in a failure.
if let Err(LightningError{err, action: ErrorAction::IgnoreError}) = get_route(
- &our_id, &payment_params, &network_graph.read_only(), None, 300_000, 42, Arc::clone(&logger), &scorer, &random_seed_bytes) {
- assert_eq!(err, "Failed to find a sufficient route to the given destination");
+ &our_id, &payment_params, &network_graph.read_only(), None, 300_000, 42,
+ Arc::clone(&logger), &scorer, &random_seed_bytes) {
+ assert_eq!(err, "Failed to find a sufficient route to the given destination");
+ } else { panic!(); }
+ }
+
+ {
+ // Attempt to route while setting max_path_count to 0 results in a failure.
+ let zero_payment_params = payment_params.clone().with_max_path_count(0);
+ if let Err(LightningError{err, action: ErrorAction::IgnoreError}) = get_route(
+ &our_id, &zero_payment_params, &network_graph.read_only(), None, 100, 42,
+ Arc::clone(&logger), &scorer, &random_seed_bytes) {
+ assert_eq!(err, "Can't find a route with no paths allowed.");
+ } else { panic!(); }
+ }
+
+ {
+ // Attempt to route while setting max_path_count to 3 results in a failure.
+ // This is the case because the minimal_value_contribution_msat would require each path
+ // to account for 1/3 of the total value, which is violated by 2 out of 3 paths.
+ let fail_payment_params = payment_params.clone().with_max_path_count(3);
+ if let Err(LightningError{err, action: ErrorAction::IgnoreError}) = get_route(
+ &our_id, &fail_payment_params, &network_graph.read_only(), None, 250_000, 42,
+ Arc::clone(&logger), &scorer, &random_seed_bytes) {
+ assert_eq!(err, "Failed to find a sufficient route to the given destination");
} else { panic!(); }
}
{
// Now, attempt to route 250 sats (just a bit below the capacity).
// Our algorithm should provide us with these 3 paths.
- let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 250_000, 42, Arc::clone(&logger), &scorer, &random_seed_bytes).unwrap();
+ let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None,
+ 250_000, 42, Arc::clone(&logger), &scorer, &random_seed_bytes).unwrap();
assert_eq!(route.paths.len(), 3);
let mut total_amount_paid_msat = 0;
for path in &route.paths {
{
// Attempt to route an exact amount is also fine
- let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 290_000, 42, Arc::clone(&logger), &scorer, &random_seed_bytes).unwrap();
+ let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None,
+ 290_000, 42, Arc::clone(&logger), &scorer, &random_seed_bytes).unwrap();
assert_eq!(route.paths.len(), 3);
let mut total_amount_paid_msat = 0;
for path in &route.paths {
#[test]
fn long_mpp_route_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
// are used twice will have 200 sats capacity.
// Disable other potential paths.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 2,
});
// Path via {node0, node2} is channels {1, 3, 5}.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 2,
});
// Capacity of 200 sats because this channel will be used by 3rd path as well.
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(5)), 5);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[2], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(5)), 5);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 5,
timestamp: 2,
// Path via {node7, node2, node4} is channels {12, 13, 6, 11}.
// Add 100 sats to the capacities of {12, 13}, because these channels
// are also used for 3rd path. 100 sats for the rest. Total capacity: 100 sats.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 11,
timestamp: 2,
#[test]
fn mpp_cheaper_route_test() {
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
// are used twice will have 200 sats capacity.
// Disable other potential paths.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 2,
});
// Path via {node0, node2} is channels {1, 3, 5}.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 2,
});
// Capacity of 200 sats because this channel will be used by 3rd path as well.
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(5)), 5);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[2], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(5)), 5);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 5,
timestamp: 2,
// Path via {node7, node2, node4} is channels {12, 13, 6, 11}.
// Add 100 sats to the capacities of {12, 13}, because these channels
// are also used for 3rd path. 100 sats for the rest. Total capacity: 100 sats.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 11,
timestamp: 2,
// This test makes sure that MPP algorithm properly takes into account
// fees charged on the channels, by making the fees impactful:
// if the fee is not properly accounted for, the behavior is different.
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
// It's fine to ignore this concern for now.
// Disable other potential paths.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 7,
timestamp: 2,
});
// Path via {node0, node2} is channels {1, 3, 5}.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 2,
excess_data: Vec::new()
});
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(5)), 5);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[2], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(5)), 5);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 5,
timestamp: 2,
// - channel 12 capacity is 250 sats
// - fee for channel 6 is 150 sats
// Let's test this by enforcing these 2 conditions and removing other limits.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 11,
timestamp: 2,
// to only have the remaining to-collect amount in available liquidity.
//
// This bug appeared in production in some specific channel configurations.
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
// would first use the no-fee route and then fail to find a path along the second route as
// we think we can only send up to 1 additional sat over the last-hop but refuse to as its
// under 5% of our payment amount.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 2,
fee_proportional_millionths: u32::max_value(),
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: u32::max_value(),
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
// Get a route for 100 sats and check that we found the MPP route no problem and didn't
// overpay at all.
- let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 100_000, 42, Arc::clone(&logger), &scorer, &random_seed_bytes).unwrap();
+ let mut route = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 100_000, 42, Arc::clone(&logger), &scorer, &random_seed_bytes).unwrap();
assert_eq!(route.paths.len(), 2);
- // Paths are somewhat randomly ordered, but:
- // * the first is channel 2 (1 msat fee) -> channel 4 -> channel 42
- // * the second is channel 1 (0 fee, but 99 sat maximum) -> channel 3 -> channel 42
- assert_eq!(route.paths[0][0].short_channel_id, 2);
- assert_eq!(route.paths[0][0].fee_msat, 1);
- assert_eq!(route.paths[0][2].fee_msat, 1_000);
- assert_eq!(route.paths[1][0].short_channel_id, 1);
- assert_eq!(route.paths[1][0].fee_msat, 0);
- assert_eq!(route.paths[1][2].fee_msat, 99_000);
+ route.paths.sort_by_key(|path| path[0].short_channel_id);
+ // Paths are manually ordered ordered by SCID, so:
+ // * the first is channel 1 (0 fee, but 99 sat maximum) -> channel 3 -> channel 42
+ // * the second is channel 2 (1 msat fee) -> channel 4 -> channel 42
+ assert_eq!(route.paths[0][0].short_channel_id, 1);
+ assert_eq!(route.paths[0][0].fee_msat, 0);
+ assert_eq!(route.paths[0][2].fee_msat, 99_000);
+ assert_eq!(route.paths[1][0].short_channel_id, 2);
+ assert_eq!(route.paths[1][0].fee_msat, 1);
+ assert_eq!(route.paths[1][2].fee_msat, 1_000);
assert_eq!(route.get_total_fees(), 1);
assert_eq!(route.get_total_amount(), 100_000);
}
fn drop_lowest_channel_mpp_route_test() {
// This test checks that low-capacity channel is dropped when after
// path finding we realize that we found more capacity than we need.
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
let random_seed_bytes = keys_manager.get_secure_random_bytes();
- let payment_params = PaymentParameters::from_node_id(nodes[2]).with_features(InvoiceFeatures::known());
+ let payment_params = PaymentParameters::from_node_id(nodes[2]).with_features(InvoiceFeatures::known())
+ .with_max_channel_saturation_power_of_half(0);
// We need a route consisting of 3 paths:
// From our node to node2 via node0, node7, node1 (three paths one hop each).
// Their aggregate capacity will be 50 + 60 + 20 = 130 sats.
// Path via node0 is channels {1, 3}. Limit them to 100 and 50 sats (total limit 50);
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[0], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 2,
});
// Path via node7 is channels {12, 13}. Limit them to 60 and 60 sats (total limit 60);
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 13,
timestamp: 2,
});
// Path via node1 is channels {2, 4}. Limit them to 20 and 20 sats (total capacity 20 sats).
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 2,
// payment) htlc_minimum_msat. In the original algorithm, this resulted in node4's
// "previous hop" being set to node 3, creating a loop in the path.
let secp_ctx = Secp256k1::new();
+ let genesis_hash = genesis_block(Network::Testnet).header.block_hash();
let logger = Arc::new(test_utils::TestLogger::new());
- let network = Arc::new(NetworkGraph::new(genesis_block(Network::Testnet).header.block_hash()));
- let net_graph_msg_handler = NetGraphMsgHandler::new(Arc::clone(&network), None, Arc::clone(&logger));
+ let network = Arc::new(NetworkGraph::new(genesis_hash, Arc::clone(&logger)));
+ let gossip_sync = P2PGossipSync::new(Arc::clone(&network), None, Arc::clone(&logger));
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
let random_seed_bytes = keys_manager.get_secure_random_bytes();
let payment_params = PaymentParameters::from_node_id(nodes[6]);
- add_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, &privkeys[1], ChannelFeatures::from_le_bytes(id_to_feature_flags(6)), 6);
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &our_privkey, &privkeys[1], ChannelFeatures::from_le_bytes(id_to_feature_flags(6)), 6);
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 6,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[1], NodeFeatures::from_le_bytes(id_to_feature_flags(1)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[1], NodeFeatures::from_le_bytes(id_to_feature_flags(1)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], &privkeys[4], ChannelFeatures::from_le_bytes(id_to_feature_flags(5)), 5);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[1], &privkeys[4], ChannelFeatures::from_le_bytes(id_to_feature_flags(5)), 5);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 5,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[4], NodeFeatures::from_le_bytes(id_to_feature_flags(4)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[4], NodeFeatures::from_le_bytes(id_to_feature_flags(4)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(4)), 4);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[4], &privkeys[3], ChannelFeatures::from_le_bytes(id_to_feature_flags(4)), 4);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[3], NodeFeatures::from_le_bytes(id_to_feature_flags(3)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[3], NodeFeatures::from_le_bytes(id_to_feature_flags(3)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[3], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(3)), 3);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[3], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[3], &privkeys[2], ChannelFeatures::from_le_bytes(id_to_feature_flags(3)), 3);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[3], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 3,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[2], NodeFeatures::from_le_bytes(id_to_feature_flags(2)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[2], NodeFeatures::from_le_bytes(id_to_feature_flags(2)), 0);
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], &privkeys[4], ChannelFeatures::from_le_bytes(id_to_feature_flags(2)), 2);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[2], &privkeys[4], ChannelFeatures::from_le_bytes(id_to_feature_flags(2)), 2);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[2], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 1,
excess_data: Vec::new()
});
- add_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], &privkeys[6], ChannelFeatures::from_le_bytes(id_to_feature_flags(1)), 1);
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
+ add_channel(&gossip_sync, &secp_ctx, &privkeys[4], &privkeys[6], ChannelFeatures::from_le_bytes(id_to_feature_flags(1)), 1);
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[4], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 1,
timestamp: 1,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- add_or_update_node(&net_graph_msg_handler, &secp_ctx, &privkeys[6], NodeFeatures::from_le_bytes(id_to_feature_flags(6)), 0);
+ add_or_update_node(&gossip_sync, &secp_ctx, &privkeys[6], NodeFeatures::from_le_bytes(id_to_feature_flags(6)), 0);
{
// Now ensure the route flows simply over nodes 1 and 4 to 6.
// Test that if, while walking the graph, we find a hop that has exactly enough liquidity
// for us, including later hop fees, we take it. In the first version of our MPP algorithm
// we calculated fees on a higher value, resulting in us ignoring such paths.
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, _, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
// We modify the graph to set the htlc_maximum of channel 2 to below the value we wish to
// send.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 12,
timestamp: 2,
// htlc_maximum_msat, we don't end up undershooting a later htlc_minimum_msat. In the
// initial version of MPP we'd accept such routes but reject them while recalculating fees,
// resulting in us thinking there is no possible path, even if other paths exist.
- let (secp_ctx, network_graph, net_graph_msg_handler, _, logger) = build_graph();
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
let (our_privkey, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
let scorer = test_utils::TestScorer::with_penalty(0);
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
// We modify the graph to set the htlc_minimum of channel 2 and 4 as needed - channel 2
// gets an htlc_maximum_msat of 80_000 and channel 4 an htlc_minimum_msat of 90_000. We
// then try to send 90_000.
- update_channel(&net_graph_msg_handler, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &our_privkey, UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 2,
timestamp: 2,
fee_proportional_millionths: 0,
excess_data: Vec::new()
});
- update_channel(&net_graph_msg_handler, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
chain_hash: genesis_block(Network::Testnet).header.block_hash(),
short_channel_id: 4,
timestamp: 2,
// route over multiple channels with the same first hop.
let secp_ctx = Secp256k1::new();
let (_, our_id, _, nodes) = get_nodes(&secp_ctx);
+ let genesis_hash = genesis_block(Network::Testnet).header.block_hash();
let logger = Arc::new(test_utils::TestLogger::new());
- let network_graph = NetworkGraph::new(genesis_block(Network::Testnet).header.block_hash());
+ let network_graph = NetworkGraph::new(genesis_hash, Arc::clone(&logger));
let scorer = test_utils::TestScorer::with_penalty(0);
let payment_params = PaymentParameters::from_node_id(nodes[0]).with_features(InvoiceFeatures::known());
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
assert_eq!(route.paths[0].len(), 1);
assert_eq!(route.paths[1].len(), 1);
+ assert!((route.paths[0][0].short_channel_id == 3 && route.paths[1][0].short_channel_id == 2) ||
+ (route.paths[0][0].short_channel_id == 2 && route.paths[1][0].short_channel_id == 3));
+
assert_eq!(route.paths[0][0].pubkey, nodes[0]);
- assert_eq!(route.paths[0][0].short_channel_id, 3);
assert_eq!(route.paths[0][0].fee_msat, 50_000);
assert_eq!(route.paths[1][0].pubkey, nodes[0]);
- assert_eq!(route.paths[1][0].short_channel_id, 2);
assert_eq!(route.paths[1][0].fee_msat, 50_000);
}
fn write<W: Writer>(&self, _w: &mut W) -> Result<(), ::io::Error> { unimplemented!() }
}
impl Score for BadChannelScorer {
- fn channel_penalty_msat(&self, short_channel_id: u64, _send_amt: u64, _capacity_msat: u64, _source: &NodeId, _target: &NodeId) -> u64 {
+ fn channel_penalty_msat(&self, short_channel_id: u64, _: &NodeId, _: &NodeId, _: ChannelUsage) -> u64 {
if short_channel_id == self.short_channel_id { u64::max_value() } else { 0 }
}
fn payment_path_failed(&mut self, _path: &[&RouteHop], _short_channel_id: u64) {}
fn payment_path_successful(&mut self, _path: &[&RouteHop]) {}
+ fn probe_failed(&mut self, _path: &[&RouteHop], _short_channel_id: u64) {}
+ fn probe_successful(&mut self, _path: &[&RouteHop]) {}
}
struct BadNodeScorer {
}
impl Score for BadNodeScorer {
- fn channel_penalty_msat(&self, _short_channel_id: u64, _send_amt: u64, _capacity_msat: u64, _source: &NodeId, target: &NodeId) -> u64 {
+ fn channel_penalty_msat(&self, _: u64, _: &NodeId, target: &NodeId, _: ChannelUsage) -> u64 {
if *target == self.node_id { u64::max_value() } else { 0 }
}
fn payment_path_failed(&mut self, _path: &[&RouteHop], _short_channel_id: u64) {}
fn payment_path_successful(&mut self, _path: &[&RouteHop]) {}
+ fn probe_failed(&mut self, _path: &[&RouteHop], _short_channel_id: u64) {}
+ fn probe_successful(&mut self, _path: &[&RouteHop]) {}
}
#[test]
}
}
+ #[test]
+ fn avoids_recently_failed_paths() {
+ // Ensure that the router always avoids all of the `previously_failed_channels` channels by
+ // randomly inserting channels into it until we can't find a route anymore.
+ let (secp_ctx, network, _, _, logger) = build_graph();
+ let (_, our_id, _, nodes) = get_nodes(&secp_ctx);
+ let network_graph = network.read_only();
+
+ let scorer = test_utils::TestScorer::with_penalty(0);
+ let mut payment_params = PaymentParameters::from_node_id(nodes[6]).with_route_hints(last_hops(&nodes))
+ .with_max_path_count(1);
+ let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
+ let random_seed_bytes = keys_manager.get_secure_random_bytes();
+
+ // We should be able to find a route initially, and then after we fail a few random
+ // channels eventually we won't be able to any longer.
+ assert!(get_route(&our_id, &payment_params, &network_graph, None, 100, 0, Arc::clone(&logger), &scorer, &random_seed_bytes).is_ok());
+ loop {
+ if let Ok(route) = get_route(&our_id, &payment_params, &network_graph, None, 100, 0, Arc::clone(&logger), &scorer, &random_seed_bytes) {
+ for chan in route.paths[0].iter() {
+ assert!(!payment_params.previously_failed_channels.contains(&chan.short_channel_id));
+ }
+ let victim = (u64::from_ne_bytes(random_seed_bytes[0..8].try_into().unwrap()) as usize)
+ % route.paths[0].len();
+ payment_params.previously_failed_channels.push(route.paths[0][victim].short_channel_id);
+ } else { break; }
+ }
+ }
+
+ #[test]
+ fn limits_path_length() {
+ let (secp_ctx, network, _, _, logger) = build_line_graph();
+ let (_, our_id, _, nodes) = get_nodes(&secp_ctx);
+ let network_graph = network.read_only();
+
+ let scorer = test_utils::TestScorer::with_penalty(0);
+ let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
+ let random_seed_bytes = keys_manager.get_secure_random_bytes();
+
+ // First check we can actually create a long route on this graph.
+ let feasible_payment_params = PaymentParameters::from_node_id(nodes[18]);
+ let route = get_route(&our_id, &feasible_payment_params, &network_graph, None, 100, 0,
+ Arc::clone(&logger), &scorer, &random_seed_bytes).unwrap();
+ let path = route.paths[0].iter().map(|hop| hop.short_channel_id).collect::<Vec<_>>();
+ assert!(path.len() == MAX_PATH_LENGTH_ESTIMATE.into());
+
+ // But we can't create a path surpassing the MAX_PATH_LENGTH_ESTIMATE limit.
+ let fail_payment_params = PaymentParameters::from_node_id(nodes[19]);
+ match get_route(&our_id, &fail_payment_params, &network_graph, None, 100, 0,
+ Arc::clone(&logger), &scorer, &random_seed_bytes)
+ {
+ Err(LightningError { err, .. } ) => {
+ assert_eq!(err, "Failed to find a path to the given destination");
+ },
+ Ok(_) => panic!("Expected error"),
+ }
+ }
+
#[test]
fn adds_and_limits_cltv_offset() {
let (secp_ctx, network_graph, _, _, logger) = build_graph();
assert!(path_plausibility.iter().all(|x| *x));
}
+ #[test]
+ fn builds_correct_path_from_hops() {
+ let (secp_ctx, network, _, _, logger) = build_graph();
+ let (_, our_id, _, nodes) = get_nodes(&secp_ctx);
+ let network_graph = network.read_only();
+
+ let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
+ let random_seed_bytes = keys_manager.get_secure_random_bytes();
+
+ let payment_params = PaymentParameters::from_node_id(nodes[3]);
+ let hops = [nodes[1], nodes[2], nodes[4], nodes[3]];
+ let route = build_route_from_hops_internal(&our_id, &hops, &payment_params,
+ &network_graph, 100, 0, Arc::clone(&logger), &random_seed_bytes).unwrap();
+ let route_hop_pubkeys = route.paths[0].iter().map(|hop| hop.pubkey).collect::<Vec<_>>();
+ assert_eq!(hops.len(), route.paths[0].len());
+ for (idx, hop_pubkey) in hops.iter().enumerate() {
+ assert!(*hop_pubkey == route_hop_pubkeys[idx]);
+ }
+ }
+
+ #[test]
+ fn avoids_saturating_channels() {
+ let (secp_ctx, network_graph, gossip_sync, _, logger) = build_graph();
+ let (_, our_id, privkeys, nodes) = get_nodes(&secp_ctx);
+
+ let scorer = ProbabilisticScorer::new(Default::default(), &*network_graph, Arc::clone(&logger));
+
+ // Set the fee on channel 13 to 100% to match channel 4 giving us two equivalent paths (us
+ // -> node 7 -> node2 and us -> node 1 -> node 2) which we should balance over.
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[1], UnsignedChannelUpdate {
+ chain_hash: genesis_block(Network::Testnet).header.block_hash(),
+ short_channel_id: 4,
+ timestamp: 2,
+ flags: 0,
+ cltv_expiry_delta: (4 << 4) | 1,
+ htlc_minimum_msat: 0,
+ htlc_maximum_msat: OptionalField::Present(200_000_000),
+ fee_base_msat: 0,
+ fee_proportional_millionths: 0,
+ excess_data: Vec::new()
+ });
+ update_channel(&gossip_sync, &secp_ctx, &privkeys[7], UnsignedChannelUpdate {
+ chain_hash: genesis_block(Network::Testnet).header.block_hash(),
+ short_channel_id: 13,
+ timestamp: 2,
+ flags: 0,
+ cltv_expiry_delta: (13 << 4) | 1,
+ htlc_minimum_msat: 0,
+ htlc_maximum_msat: OptionalField::Present(200_000_000),
+ fee_base_msat: 0,
+ fee_proportional_millionths: 0,
+ excess_data: Vec::new()
+ });
+
+ let payment_params = PaymentParameters::from_node_id(nodes[2]).with_features(InvoiceFeatures::known());
+ let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
+ let random_seed_bytes = keys_manager.get_secure_random_bytes();
+ // 150,000 sat is less than the available liquidity on each channel, set above.
+ let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 150_000_000, 42, Arc::clone(&logger), &scorer, &random_seed_bytes).unwrap();
+ assert_eq!(route.paths.len(), 2);
+ assert!((route.paths[0][1].short_channel_id == 4 && route.paths[1][1].short_channel_id == 13) ||
+ (route.paths[1][1].short_channel_id == 4 && route.paths[0][1].short_channel_id == 13));
+ }
+
#[cfg(not(feature = "no-std"))]
pub(super) fn random_init_seed() -> u64 {
// Because the default HashMap in std pulls OS randomness, we can use it as a (bad) RNG.
seed
}
#[cfg(not(feature = "no-std"))]
- use util::ser::Readable;
+ use util::ser::ReadableArgs;
#[test]
#[cfg(not(feature = "no-std"))]
return;
},
};
- let graph = NetworkGraph::read(&mut d).unwrap();
+ let logger = test_utils::TestLogger::new();
+ let graph = NetworkGraph::read(&mut d, &logger).unwrap();
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
let random_seed_bytes = keys_manager.get_secure_random_bytes();
let payment_params = PaymentParameters::from_node_id(dst);
let amt = seed as u64 % 200_000_000;
let params = ProbabilisticScoringParameters::default();
- let scorer = ProbabilisticScorer::new(params, &graph);
- if get_route(src, &payment_params, &graph.read_only(), None, amt, 42, &test_utils::TestLogger::new(), &scorer, &random_seed_bytes).is_ok() {
+ let scorer = ProbabilisticScorer::new(params, &graph, &logger);
+ if get_route(src, &payment_params, &graph.read_only(), None, amt, 42, &logger, &scorer, &random_seed_bytes).is_ok() {
continue 'load_endpoints;
}
}
return;
},
};
- let graph = NetworkGraph::read(&mut d).unwrap();
+ let logger = test_utils::TestLogger::new();
+ let graph = NetworkGraph::read(&mut d, &logger).unwrap();
let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
let random_seed_bytes = keys_manager.get_secure_random_bytes();
let payment_params = PaymentParameters::from_node_id(dst).with_features(InvoiceFeatures::known());
let amt = seed as u64 % 200_000_000;
let params = ProbabilisticScoringParameters::default();
- let scorer = ProbabilisticScorer::new(params, &graph);
- if get_route(src, &payment_params, &graph.read_only(), None, amt, 42, &test_utils::TestLogger::new(), &scorer, &random_seed_bytes).is_ok() {
+ let scorer = ProbabilisticScorer::new(params, &graph, &logger);
+ if get_route(src, &payment_params, &graph.read_only(), None, amt, 42, &logger, &scorer, &random_seed_bytes).is_ok() {
continue 'load_endpoints;
}
}
}
}
+
+ #[test]
+ fn honors_manual_penalties() {
+ let (secp_ctx, network_graph, _, _, logger) = build_line_graph();
+ let (_, our_id, _, nodes) = get_nodes(&secp_ctx);
+
+ let keys_manager = test_utils::TestKeysInterface::new(&[0u8; 32], Network::Testnet);
+ let random_seed_bytes = keys_manager.get_secure_random_bytes();
+
+ let scorer_params = ProbabilisticScoringParameters::default();
+ let mut scorer = ProbabilisticScorer::new(scorer_params, Arc::clone(&network_graph), Arc::clone(&logger));
+
+ // First check set manual penalties are returned by the scorer.
+ let usage = ChannelUsage {
+ amount_msat: 0,
+ inflight_htlc_msat: 0,
+ effective_capacity: EffectiveCapacity::Total { capacity_msat: 1_024_000, htlc_maximum_msat: Some(1_000) },
+ };
+ scorer.set_manual_penalty(&NodeId::from_pubkey(&nodes[3]), 123);
+ scorer.set_manual_penalty(&NodeId::from_pubkey(&nodes[4]), 456);
+ assert_eq!(scorer.channel_penalty_msat(42, &NodeId::from_pubkey(&nodes[3]), &NodeId::from_pubkey(&nodes[4]), usage), 456);
+
+ // Then check we can get a normal route
+ let payment_params = PaymentParameters::from_node_id(nodes[10]);
+ let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 100, 42, Arc::clone(&logger), &scorer, &random_seed_bytes);
+ assert!(route.is_ok());
+
+ // Then check that we can't get a route if we ban an intermediate node.
+ scorer.add_banned(&NodeId::from_pubkey(&nodes[3]));
+ let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 100, 42, Arc::clone(&logger), &scorer, &random_seed_bytes);
+ assert!(route.is_err());
+
+ // Finally make sure we can route again, when we remove the ban.
+ scorer.remove_banned(&NodeId::from_pubkey(&nodes[3]));
+ let route = get_route(&our_id, &payment_params, &network_graph.read_only(), None, 100, 42, Arc::clone(&logger), &scorer, &random_seed_bytes);
+ assert!(route.is_ok());
+ }
}
#[cfg(all(test, not(feature = "no-std")))]
use chain::keysinterface::{KeysManager,KeysInterface};
use ln::channelmanager::{ChannelCounterparty, ChannelDetails};
use ln::features::{InitFeatures, InvoiceFeatures};
- use routing::scoring::{FixedPenaltyScorer, ProbabilisticScorer, ProbabilisticScoringParameters, Scorer};
+ use routing::gossip::NetworkGraph;
+ use routing::scoring::{FixedPenaltyScorer, ProbabilisticScorer, ProbabilisticScoringParameters};
use util::logger::{Logger, Record};
+ use util::ser::ReadableArgs;
use test::Bencher;
fn log(&self, _record: &Record) {}
}
- fn read_network_graph() -> NetworkGraph {
+ fn read_network_graph(logger: &DummyLogger) -> NetworkGraph<&DummyLogger> {
let mut d = test_utils::get_route_file().unwrap();
- NetworkGraph::read(&mut d).unwrap()
+ NetworkGraph::read(&mut d, logger).unwrap()
}
fn payer_pubkey() -> PublicKey {
node_id,
unspendable_punishment_reserve: 0,
forwarding_info: None,
+ outbound_htlc_minimum_msat: None,
+ outbound_htlc_maximum_msat: None,
},
funding_txo: Some(OutPoint {
txid: bitcoin::Txid::from_slice(&[0; 32]).unwrap(), index: 0
channel_type: None,
short_channel_id: Some(1),
inbound_scid_alias: None,
+ outbound_scid_alias: None,
channel_value_satoshis: 10_000_000,
user_channel_id: 0,
balance_msat: 10_000_000,
outbound_capacity_msat: 10_000_000,
+ next_outbound_htlc_limit_msat: 10_000_000,
inbound_capacity_msat: 0,
unspendable_punishment_reserve: None,
confirmations_required: None,
force_close_spend_delay: None,
is_outbound: true,
- is_funding_locked: true,
+ is_channel_ready: true,
is_usable: true,
is_public: true,
+ inbound_htlc_minimum_msat: None,
+ inbound_htlc_maximum_msat: None,
+ config: None,
}
}
#[bench]
fn generate_routes_with_zero_penalty_scorer(bench: &mut Bencher) {
- let network_graph = read_network_graph();
+ let logger = DummyLogger {};
+ let network_graph = read_network_graph(&logger);
let scorer = FixedPenaltyScorer::with_penalty(0);
generate_routes(bench, &network_graph, scorer, InvoiceFeatures::empty());
}
#[bench]
fn generate_mpp_routes_with_zero_penalty_scorer(bench: &mut Bencher) {
- let network_graph = read_network_graph();
+ let logger = DummyLogger {};
+ let network_graph = read_network_graph(&logger);
let scorer = FixedPenaltyScorer::with_penalty(0);
generate_routes(bench, &network_graph, scorer, InvoiceFeatures::known());
}
- #[bench]
- fn generate_routes_with_default_scorer(bench: &mut Bencher) {
- let network_graph = read_network_graph();
- let scorer = Scorer::default();
- generate_routes(bench, &network_graph, scorer, InvoiceFeatures::empty());
- }
-
- #[bench]
- fn generate_mpp_routes_with_default_scorer(bench: &mut Bencher) {
- let network_graph = read_network_graph();
- let scorer = Scorer::default();
- generate_routes(bench, &network_graph, scorer, InvoiceFeatures::known());
- }
-
#[bench]
fn generate_routes_with_probabilistic_scorer(bench: &mut Bencher) {
- let network_graph = read_network_graph();
+ let logger = DummyLogger {};
+ let network_graph = read_network_graph(&logger);
let params = ProbabilisticScoringParameters::default();
- let scorer = ProbabilisticScorer::new(params, &network_graph);
+ let scorer = ProbabilisticScorer::new(params, &network_graph, &logger);
generate_routes(bench, &network_graph, scorer, InvoiceFeatures::empty());
}
#[bench]
fn generate_mpp_routes_with_probabilistic_scorer(bench: &mut Bencher) {
- let network_graph = read_network_graph();
+ let logger = DummyLogger {};
+ let network_graph = read_network_graph(&logger);
let params = ProbabilisticScoringParameters::default();
- let scorer = ProbabilisticScorer::new(params, &network_graph);
+ let scorer = ProbabilisticScorer::new(params, &network_graph, &logger);
generate_routes(bench, &network_graph, scorer, InvoiceFeatures::known());
}
fn generate_routes<S: Score>(
- bench: &mut Bencher, graph: &NetworkGraph, mut scorer: S, features: InvoiceFeatures
+ bench: &mut Bencher, graph: &NetworkGraph<&DummyLogger>, mut scorer: S,
+ features: InvoiceFeatures
) {
let nodes = graph.read_only().nodes().clone();
let payer = payer_pubkey();
projects / rust-lightning / blobdiff