By default sort network addrs before inclusion in node_announcements

[rust-lightning] / lightning / src / ln / channelmanager.rs

diff --git a/lightning/src/ln/channelmanager.rs b/lightning/src/ln/channelmanager.rs
index 58b6982c42a94331578f7cd61d967e9830ce13d5..7b8b2a258705eaa3f8339696f7b3a57ef67731e1 100644 (file)
--- a/lightning/src/ln/channelmanager.rs
+++ b/lightning/src/ln/channelmanager.rs
@@ -43,6 +43,7 @@ use chain::channelmonitor::{ChannelMonitor, ChannelMonitorUpdate, ChannelMonitor
 use chain::transaction::{OutPoint, TransactionData};
 // Since this struct is returned in `list_channels` methods, expose it here in case users want to
 // construct one themselves.
+use ln::{PaymentHash, PaymentPreimage, PaymentSecret};
 pub use ln::channel::CounterpartyForwardingInfo;
 use ln::channel::{Channel, ChannelError};
 use ln::features::{InitFeatures, NodeFeatures};
@@ -68,7 +69,6 @@ use std::sync::atomic::{AtomicUsize, Ordering};
 use std::time::Duration;
 #[cfg(any(test, feature = "allow_wallclock_use"))]
 use std::time::Instant;
-use std::marker::{Sync, Send};
 use std::ops::Deref;
 use bitcoin::hashes::hex::ToHex;
 
@@ -197,19 +197,6 @@ pub(super) enum HTLCFailReason {
        }
 }
 
-/// payment_hash type, use to cross-lock hop
-/// (C-not exported) as we just use [u8; 32] directly
-#[derive(Hash, Copy, Clone, PartialEq, Eq, Debug)]
-pub struct PaymentHash(pub [u8;32]);
-/// payment_preimage type, use to route payment between hop
-/// (C-not exported) as we just use [u8; 32] directly
-#[derive(Hash, Copy, Clone, PartialEq, Eq, Debug)]
-pub struct PaymentPreimage(pub [u8;32]);
-/// payment_secret type, use to authenticate sender to the receiver and tie MPP HTLCs together
-/// (C-not exported) as we just use [u8; 32] directly
-#[derive(Hash, Copy, Clone, PartialEq, Eq, Debug)]
-pub struct PaymentSecret(pub [u8;32]);
-
 type ShutdownResult = (Option<(OutPoint, ChannelMonitorUpdate)>, Vec<(HTLCSource, PaymentHash)>);
 
 /// Error type returned across the channel_state mutex boundary. When an Err is generated for a
@@ -1756,13 +1743,17 @@ impl<Signer: Sign, M: Deref, T: Deref, K: Deref, F: Deref, L: Deref> ChannelMana
        /// only Tor Onion addresses.
        ///
        /// Panics if addresses is absurdly large (more than 500).
-       pub fn broadcast_node_announcement(&self, rgb: [u8; 3], alias: [u8; 32], addresses: Vec<NetAddress>) {
+       pub fn broadcast_node_announcement(&self, rgb: [u8; 3], alias: [u8; 32], mut addresses: Vec<NetAddress>) {
                let _persistence_guard = PersistenceNotifierGuard::new(&self.total_consistency_lock, &self.persistence_notifier);
 
                if addresses.len() > 500 {
                        panic!("More than half the message size was taken up by public addresses!");
                }
 
+               // While all existing nodes handle unsorted addresses just fine, the spec requires that
+               // addresses be sorted for future compatibility.
+               addresses.sort_by_key(|addr| addr.get_id());
+
                let announcement = msgs::UnsignedNodeAnnouncement {
                        features: NodeFeatures::known(),
                        timestamp: self.last_node_announcement_serial.fetch_add(1, Ordering::AcqRel) as u32,
@@ -3768,7 +3759,7 @@ where
        }
 }
 
-impl<Signer: Sign, M: Deref + Sync + Send, T: Deref + Sync + Send, K: Deref + Sync + Send, F: Deref + Sync + Send, L: Deref + Sync + Send>
+impl<Signer: Sign, M: Deref , T: Deref , K: Deref , F: Deref , L: Deref >
        ChannelMessageHandler for ChannelManager<Signer, M, T, K, F, L>
        where M::Target: chain::Watch<Signer>,
         T::Target: BroadcasterInterface,