use crate::ln::msgs;
use crate::util::ser::{Readable, ReadableArgs, Writeable, Writer, MaybeReadable};
use crate::util::logger::{Logger, Level};
-use crate::util::events::{Event, EventHandler, MessageSendEvent, MessageSendEventsProvider};
+use crate::util::events::{MessageSendEvent, MessageSendEventsProvider};
use crate::util::scid_utils::{block_from_scid, scid_from_parts, MAX_SCID_BLOCK};
+use crate::util::string::PrintableString;
use crate::io;
use crate::io_extras::{copy, sink};
/// This network graph is then used for routing payments.
/// Provides interface to help with initial routing sync by
/// serving historical announcements.
-///
-/// Serves as an [`EventHandler`] for applying updates from [`Event::PaymentPathFailed`] to the
-/// [`NetworkGraph`].
pub struct P2PGossipSync<G: Deref<Target=NetworkGraph<L>>, C: Deref, L: Deref>
where C::Target: chain::Access, L::Target: Logger
{
}
}
-impl<L: Deref> EventHandler for NetworkGraph<L> where L::Target: Logger {
- fn handle_event(&self, event: &Event) {
- if let Event::PaymentPathFailed { network_update, .. } = event {
- if let Some(network_update) = network_update {
- match *network_update {
- NetworkUpdate::ChannelUpdateMessage { ref msg } => {
- let short_channel_id = msg.contents.short_channel_id;
- let is_enabled = msg.contents.flags & (1 << 1) != (1 << 1);
- let status = if is_enabled { "enabled" } else { "disabled" };
- log_debug!(self.logger, "Updating channel with channel_update from a payment failure. Channel {} is {}.", short_channel_id, status);
- let _ = self.update_channel(msg);
- },
- NetworkUpdate::ChannelFailure { short_channel_id, is_permanent } => {
- let action = if is_permanent { "Removing" } else { "Disabling" };
- log_debug!(self.logger, "{} channel graph entry for {} due to a payment failure.", action, short_channel_id);
- self.channel_failed(short_channel_id, is_permanent);
- },
- NetworkUpdate::NodeFailure { ref node_id, is_permanent } => {
- if is_permanent {
- log_debug!(self.logger,
- "Removed node graph entry for {} due to a payment failure.", log_pubkey!(node_id));
- self.node_failed_permanent(node_id);
- };
- },
- }
- }
+impl<L: Deref> NetworkGraph<L> where L::Target: Logger {
+ /// Handles any network updates originating from [`Event`]s.
+ ///
+ /// [`Event`]: crate::util::events::Event
+ pub fn handle_network_update(&self, network_update: &NetworkUpdate) {
+ match *network_update {
+ NetworkUpdate::ChannelUpdateMessage { ref msg } => {
+ let short_channel_id = msg.contents.short_channel_id;
+ let is_enabled = msg.contents.flags & (1 << 1) != (1 << 1);
+ let status = if is_enabled { "enabled" } else { "disabled" };
+ log_debug!(self.logger, "Updating channel with channel_update from a payment failure. Channel {} is {}.", short_channel_id, status);
+ let _ = self.update_channel(msg);
+ },
+ NetworkUpdate::ChannelFailure { short_channel_id, is_permanent } => {
+ let action = if is_permanent { "Removing" } else { "Disabling" };
+ log_debug!(self.logger, "{} channel graph entry for {} due to a payment failure.", action, short_channel_id);
+ self.channel_failed(short_channel_id, is_permanent);
+ },
+ NetworkUpdate::NodeFailure { ref node_id, is_permanent } => {
+ if is_permanent {
+ log_debug!(self.logger,
+ "Removed node graph entry for {} due to a payment failure.", log_pubkey!(node_id));
+ self.node_failed_permanent(node_id);
+ };
+ },
}
}
}
impl fmt::Display for NodeAlias {
fn fmt(&self, f: &mut fmt::Formatter) -> Result<(), fmt::Error> {
- let control_symbol = core::char::REPLACEMENT_CHARACTER;
let first_null = self.0.iter().position(|b| *b == 0).unwrap_or(self.0.len());
let bytes = self.0.split_at(first_null).0;
match core::str::from_utf8(bytes) {
- Ok(alias) => {
- for c in alias.chars() {
- let mut bytes = [0u8; 4];
- let c = if !c.is_control() { c } else { control_symbol };
- f.write_str(c.encode_utf8(&mut bytes))?;
- }
- },
+ Ok(alias) => PrintableString(alias).fmt(f)?,
Err(_) => {
+ use core::fmt::Write;
for c in bytes.iter().map(|b| *b as char) {
// Display printable ASCII characters
- let mut bytes = [0u8; 4];
+ let control_symbol = core::char::REPLACEMENT_CHARACTER;
let c = if c >= '\x20' && c <= '\x7e' { c } else { control_symbol };
- f.write_str(c.encode_utf8(&mut bytes))?;
+ f.write_char(c)?;
}
},
};
if info.two_to_one.is_some() && info.two_to_one.as_ref().unwrap().last_update < min_time_unix {
info.two_to_one = None;
}
- if info.one_to_two.is_none() && info.two_to_one.is_none() {
+ if info.one_to_two.is_none() || info.two_to_one.is_none() {
// We check the announcement_received_time here to ensure we don't drop
// announcements that we just received and are just waiting for our peer to send a
// channel_update for.
for scid in scids_to_remove {
let info = channels.remove(&scid).expect("We just accessed this scid, it should be present");
Self::remove_channel_in_nodes(&mut nodes, &info, scid);
+ self.removed_channels.lock().unwrap().insert(scid, Some(current_time_unix));
}
}
use crate::chain;
use crate::ln::channelmanager;
use crate::ln::chan_utils::make_funding_redeemscript;
- use crate::ln::PaymentHash;
use crate::ln::features::InitFeatures;
use crate::routing::gossip::{P2PGossipSync, NetworkGraph, NetworkUpdate, NodeAlias, MAX_EXCESS_BYTES_FOR_RELAY, NodeId, RoutingFees, ChannelUpdateInfo, ChannelInfo, NodeAnnouncementInfo, NodeInfo};
use crate::ln::msgs::{RoutingMessageHandler, UnsignedNodeAnnouncement, NodeAnnouncement,
ReplyChannelRange, QueryChannelRange, QueryShortChannelIds, MAX_VALUE_MSAT};
use crate::util::test_utils;
use crate::util::ser::{ReadableArgs, Writeable};
- use crate::util::events::{Event, EventHandler, MessageSendEvent, MessageSendEventsProvider};
+ use crate::util::events::{MessageSendEvent, MessageSendEventsProvider};
use crate::util::scid_utils::scid_from_parts;
use crate::routing::gossip::REMOVED_ENTRIES_TRACKING_AGE_LIMIT_SECS;
let valid_channel_update = get_signed_channel_update(|_| {}, node_1_privkey, &secp_ctx);
assert!(network_graph.read_only().channels().get(&short_channel_id).unwrap().one_to_two.is_none());
- network_graph.handle_event(&Event::PaymentPathFailed {
- payment_id: None,
- payment_hash: PaymentHash([0; 32]),
- payment_failed_permanently: false,
- all_paths_failed: true,
- path: vec![],
- network_update: Some(NetworkUpdate::ChannelUpdateMessage {
- msg: valid_channel_update,
- }),
- short_channel_id: None,
- retry: None,
- error_code: None,
- error_data: None,
+ network_graph.handle_network_update(&NetworkUpdate::ChannelUpdateMessage {
+ msg: valid_channel_update,
});
assert!(network_graph.read_only().channels().get(&short_channel_id).unwrap().one_to_two.is_some());
}
};
- network_graph.handle_event(&Event::PaymentPathFailed {
- payment_id: None,
- payment_hash: PaymentHash([0; 32]),
- payment_failed_permanently: false,
- all_paths_failed: true,
- path: vec![],
- network_update: Some(NetworkUpdate::ChannelFailure {
- short_channel_id,
- is_permanent: false,
- }),
- short_channel_id: None,
- retry: None,
- error_code: None,
- error_data: None,
+ network_graph.handle_network_update(&NetworkUpdate::ChannelFailure {
+ short_channel_id,
+ is_permanent: false,
});
match network_graph.read_only().channels().get(&short_channel_id) {
}
// Permanent closing deletes a channel
- network_graph.handle_event(&Event::PaymentPathFailed {
- payment_id: None,
- payment_hash: PaymentHash([0; 32]),
- payment_failed_permanently: false,
- all_paths_failed: true,
- path: vec![],
- network_update: Some(NetworkUpdate::ChannelFailure {
- short_channel_id,
- is_permanent: true,
- }),
- short_channel_id: None,
- retry: None,
- error_code: None,
- error_data: None,
+ network_graph.handle_network_update(&NetworkUpdate::ChannelFailure {
+ short_channel_id,
+ is_permanent: true,
});
assert_eq!(network_graph.read_only().channels().len(), 0);
assert!(network_graph.read_only().channels().get(&short_channel_id).is_some());
// Non-permanent node failure does not delete any nodes or channels
- network_graph.handle_event(&Event::PaymentPathFailed {
- payment_id: None,
- payment_hash: PaymentHash([0; 32]),
- payment_failed_permanently: false,
- all_paths_failed: true,
- path: vec![],
- network_update: Some(NetworkUpdate::NodeFailure {
- node_id: node_2_id,
- is_permanent: false,
- }),
- short_channel_id: None,
- retry: None,
- error_code: None,
- error_data: None,
+ network_graph.handle_network_update(&NetworkUpdate::NodeFailure {
+ node_id: node_2_id,
+ is_permanent: false,
});
assert!(network_graph.read_only().channels().get(&short_channel_id).is_some());
assert!(network_graph.read_only().nodes().get(&NodeId::from_pubkey(&node_2_id)).is_some());
// Permanent node failure deletes node and its channels
- network_graph.handle_event(&Event::PaymentPathFailed {
- payment_id: None,
- payment_hash: PaymentHash([0; 32]),
- payment_failed_permanently: false,
- all_paths_failed: true,
- path: vec![],
- network_update: Some(NetworkUpdate::NodeFailure {
- node_id: node_2_id,
- is_permanent: true,
- }),
- short_channel_id: None,
- retry: None,
- error_code: None,
- error_data: None,
+ network_graph.handle_network_update(&NetworkUpdate::NodeFailure {
+ node_id: node_2_id,
+ is_permanent: true,
});
assert_eq!(network_graph.read_only().nodes().len(), 0);
assert_eq!(network_graph.read_only().nodes().len(), 2);
network_graph.remove_stale_channels_and_tracking_with_time(101 + STALE_CHANNEL_UPDATE_AGE_LIMIT_SECS);
+ #[cfg(not(feature = "std"))] {
+ // Make sure removed channels are tracked.
+ assert_eq!(network_graph.removed_channels.lock().unwrap().len(), 1);
+ }
+ network_graph.remove_stale_channels_and_tracking_with_time(101 + STALE_CHANNEL_UPDATE_AGE_LIMIT_SECS +
+ REMOVED_ENTRIES_TRACKING_AGE_LIMIT_SECS);
+
#[cfg(feature = "std")]
{
// In std mode, a further check is performed before fully removing the channel -
// the channel_announcement must have been received at least two weeks ago. We
- // fudge that here by indicating the time has jumped two weeks. Note that the
- // directional channel information will have been removed already..
+ // fudge that here by indicating the time has jumped two weeks.
assert_eq!(network_graph.read_only().channels().len(), 1);
assert_eq!(network_graph.read_only().nodes().len(), 2);
- assert!(network_graph.read_only().channels().get(&short_channel_id).unwrap().one_to_two.is_none());
+ // Note that the directional channel information will have been removed already..
+ // We want to check that this will work even if *one* of the channel updates is recent,
+ // so we should add it with a recent timestamp.
+ assert!(network_graph.read_only().channels().get(&short_channel_id).unwrap().one_to_two.is_none());
use std::time::{SystemTime, UNIX_EPOCH};
let announcement_time = SystemTime::now().duration_since(UNIX_EPOCH).expect("Time must be > 1970").as_secs();
+ let valid_channel_update = get_signed_channel_update(|unsigned_channel_update| {
+ unsigned_channel_update.timestamp = (announcement_time + 1 + STALE_CHANNEL_UPDATE_AGE_LIMIT_SECS) as u32;
+ }, node_1_privkey, &secp_ctx);
+ assert!(gossip_sync.handle_channel_update(&valid_channel_update).is_ok());
+ assert!(network_graph.read_only().channels().get(&short_channel_id).unwrap().one_to_two.is_some());
network_graph.remove_stale_channels_and_tracking_with_time(announcement_time + 1 + STALE_CHANNEL_UPDATE_AGE_LIMIT_SECS);
+ // Make sure removed channels are tracked.
+ assert_eq!(network_graph.removed_channels.lock().unwrap().len(), 1);
+ // Provide a later time so that sufficient time has passed
+ network_graph.remove_stale_channels_and_tracking_with_time(announcement_time + 1 + STALE_CHANNEL_UPDATE_AGE_LIMIT_SECS +
+ REMOVED_ENTRIES_TRACKING_AGE_LIMIT_SECS);
}
assert_eq!(network_graph.read_only().channels().len(), 0);
assert_eq!(network_graph.read_only().nodes().len(), 0);
+ assert!(network_graph.removed_channels.lock().unwrap().is_empty());
#[cfg(feature = "std")]
{
projects / rust-lightning / blobdiff