From: Matt Corallo <git@bluematt.me>
Date: Sat, 8 Sep 2018 18:43:15 +0000 (-0400)
Subject: Disallow duplicate Init messages from peers
X-Git-Tag: v0.0.12~319^2
X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=commitdiff_plain;h=refs%2Fheads%2F2018-09-channel-connection-cleanups;p=rust-lightning

Disallow duplicate Init messages from peers
---

diff --git a/src/ln/peer_handler.rs b/src/ln/peer_handler.rs
index 3d3588a4d..8a4228851 100644
--- a/src/ln/peer_handler.rs
+++ b/src/ln/peer_handler.rs
@@ -445,6 +445,9 @@ impl<Descriptor: SocketDescriptor> PeerManager<Descriptor> {
 												if msg.local_features.requires_unknown_bits() {
 													return Err(PeerHandleError{ no_connection_possible: true });
 												}
+												if peer.their_global_features.is_some() {
+													return Err(PeerHandleError{ no_connection_possible: false });
+												}
 												peer.their_global_features = Some(msg.global_features);
 												peer.their_local_features = Some(msg.local_features);