X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning%2Fsrc%2Frouting%2Fnetwork_graph.rs;h=10c0ba57b58b05e2a6875795773e4a19188c6cb1;hb=09714e6fe286b8cd5863b616748362b76c2fbdf0;hp=851e01b5088e6988eae597982c91fa4c865b3172;hpb=1beccf188d157cc3147d348a348ad8d2e5d5fe59;p=rust-lightning

diff --git a/lightning/src/routing/network_graph.rs b/lightning/src/routing/network_graph.rs
index 851e01b5..10c0ba57 100644
--- a/lightning/src/routing/network_graph.rs
+++ b/lightning/src/routing/network_graph.rs
@@ -299,7 +299,7 @@ where C::Target: chain::Access, L::Target: Logger
 
 	fn handle_channel_announcement(&self, msg: &msgs::ChannelAnnouncement) -> Result<bool, LightningError> {
 		self.network_graph.update_channel_from_announcement(msg, &self.chain_access, &self.secp_ctx)?;
-		log_trace!(self.logger, "Added channel_announcement for {}{}", msg.contents.short_channel_id, if !msg.contents.excess_data.is_empty() { " with excess uninterpreted data!" } else { "" });
+		log_gossip!(self.logger, "Added channel_announcement for {}{}", msg.contents.short_channel_id, if !msg.contents.excess_data.is_empty() { " with excess uninterpreted data!" } else { "" });
 		Ok(msg.contents.excess_data.len() <= MAX_EXCESS_BYTES_FOR_RELAY)
 	}
 
@@ -847,8 +847,13 @@ impl NetworkGraph {
 			None => Err(LightningError{err: "No existing channels for node_announcement".to_owned(), action: ErrorAction::IgnoreError}),
 			Some(node) => {
 				if let Some(node_info) = node.announcement_info.as_ref() {
-					if node_info.last_update  >= msg.timestamp {
-						return Err(LightningError{err: "Update older than last processed update".to_owned(), action: ErrorAction::IgnoreAndLog(Level::Trace)});
+					// The timestamp field is somewhat of a misnomer - the BOLTs use it to order
+					// updates to ensure you always have the latest one, only vaguely suggesting
+					// that it be at least the current time.
+					if node_info.last_update  > msg.timestamp {
+						return Err(LightningError{err: "Update older than last processed update".to_owned(), action: ErrorAction::IgnoreAndLog(Level::Gossip)});
+					} else if node_info.last_update  == msg.timestamp {
+						return Err(LightningError{err: "Update had the same timestamp as last processed update".to_owned(), action: ErrorAction::IgnoreDuplicateGossip});
 					}
 				}
 
@@ -977,7 +982,7 @@ impl NetworkGraph {
 					Self::remove_channel_in_nodes(&mut nodes, &entry.get(), msg.short_channel_id);
 					*entry.get_mut() = chan_info;
 				} else {
-					return Err(LightningError{err: "Already have knowledge of channel".to_owned(), action: ErrorAction::IgnoreAndLog(Level::Trace)})
+					return Err(LightningError{err: "Already have knowledge of channel".to_owned(), action: ErrorAction::IgnoreDuplicateGossip});
 				}
 			},
 			BtreeEntry::Vacant(entry) => {
@@ -1082,8 +1087,16 @@ impl NetworkGraph {
 				macro_rules! maybe_update_channel_info {
 					( $target: expr, $src_node: expr) => {
 						if let Some(existing_chan_info) = $target.as_ref() {
-							if existing_chan_info.last_update >= msg.timestamp {
-								return Err(LightningError{err: "Update older than last processed update".to_owned(), action: ErrorAction::IgnoreAndLog(Level::Trace)});
+							// The timestamp field is somewhat of a misnomer - the BOLTs use it to
+							// order updates to ensure you always have the latest one, only
+							// suggesting  that it be at least the current time. For
+							// channel_updates specifically, the BOLTs discuss the possibility of
+							// pruning based on the timestamp field being more than two weeks old,
+							// but only in the non-normative section.
+							if existing_chan_info.last_update > msg.timestamp {
+								return Err(LightningError{err: "Update older than last processed update".to_owned(), action: ErrorAction::IgnoreAndLog(Level::Gossip)});
+							} else if existing_chan_info.last_update == msg.timestamp {
+								return Err(LightningError{err: "Update had same timestamp as last processed update".to_owned(), action: ErrorAction::IgnoreDuplicateGossip});
 							}
 							chan_was_enabled = existing_chan_info.enabled;
 						} else {
@@ -1720,7 +1733,7 @@ mod tests {
 
 		match net_graph_msg_handler.handle_channel_update(&valid_channel_update) {
 			Ok(_) => panic!(),
-			Err(e) => assert_eq!(e.err, "Update older than last processed update")
+			Err(e) => assert_eq!(e.err, "Update had same timestamp as last processed update")
 		};
 		unsigned_channel_update.timestamp += 500;