Allow relaying of only one direction in a channel, log on recv

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

diff --git a/lightning/src/ln/msgs.rs b/lightning/src/ln/msgs.rs
index be5be241ec1b60343d3bd54aec0e35a49b309612..85f3026eafa7930d705b9d7cc1b1b8fed3517b39 100644 (file)
--- a/lightning/src/ln/msgs.rs
+++ b/lightning/src/ln/msgs.rs
@@ -302,6 +302,9 @@ impl NetAddress {
                        &NetAddress::OnionV3 { .. } => { 37 },
                }
        }
+
+       /// The maximum length of any address descriptor, not including the 1-byte type
+       pub(crate) const MAX_LEN: u16 = 37;
 }
 
 impl Writeable for NetAddress {
@@ -597,10 +600,11 @@ pub trait RoutingMessageHandler : Send + Sync {
        fn handle_htlc_fail_channel_update(&self, update: &HTLCFailChannelUpdate);
        /// Gets a subset of the channel announcements and updates required to dump our routing table
        /// to a remote node, starting at the short_channel_id indicated by starting_point and
-       /// including batch_amount entries.
-       fn get_next_channel_announcements(&self, starting_point: u64, batch_amount: u8) -> Vec<(ChannelAnnouncement, ChannelUpdate, ChannelUpdate)>;
+       /// including the batch_amount entries immediately higher in numerical value than starting_point.
+       fn get_next_channel_announcements(&self, starting_point: u64, batch_amount: u8) -> Vec<(ChannelAnnouncement, Option<ChannelUpdate>, Option<ChannelUpdate>)>;
        /// Gets a subset of the node announcements required to dump our routing table to a remote node,
-       /// starting at the node *after* the provided publickey and including batch_amount entries.
+       /// starting at the node *after* the provided publickey and including batch_amount entries
+       /// immediately higher (as defined by <PublicKey as Ord>::cmp) than starting_point.
        /// If None is provided for starting_point, we start at the first node.
        fn get_next_node_announcements(&self, starting_point: Option<&PublicKey>, batch_amount: u8) -> Vec<NodeAnnouncement>;
        /// Returns whether a full sync should be requested from a peer.
@@ -1291,7 +1295,7 @@ impl Readable for UnsignedNodeAnnouncement {
 
 impl_writeable_len_match!(NodeAnnouncement, {
                { NodeAnnouncement { contents: UnsignedNodeAnnouncement { ref features, ref addresses, ref excess_address_data, ref excess_data, ..}, .. },
-                       64 + 76 + features.byte_count() + addresses.len()*38 + excess_address_data.len() + excess_data.len() }
+                       64 + 76 + features.byte_count() + addresses.len()*(NetAddress::MAX_LEN as usize + 1) + excess_address_data.len() + excess_data.len() }
        }, {
        signature,
        contents