Log peer features in peer_handler (and check for all req bits)

diff --git a/src/ln/peer_handler.rs b/src/ln/peer_handler.rs
index 01416568b468f404e898cd9b718f17d539835543..20faf2500b8ed40e911f018edba75b34828c28a4 100644 (file)
--- a/src/ln/peer_handler.rs
+++ b/src/ln/peer_handler.rs
@@ -451,14 +451,32 @@ impl<Descriptor: SocketDescriptor> PeerManager<Descriptor> {
                                                                                        16 => {
                                                                                                let msg = try_potential_decodeerror!(msgs::Init::read(&mut reader));
                                                                                                if msg.global_features.requires_unknown_bits() {
+                                                                                                       log_info!(self, "Peer global features required unknown version bits");
                                                                                                        return Err(PeerHandleError{ no_connection_possible: true });
                                                                                                }
                                                                                                if msg.local_features.requires_unknown_bits() {
+                                                                                                       log_info!(self, "Peer local features required unknown version bits");
+                                                                                                       return Err(PeerHandleError{ no_connection_possible: true });
+                                                                                               }
+                                                                                               if msg.local_features.requires_data_loss_protect() {
+                                                                                                       log_info!(self, "Peer local features required data_loss_protect");
+                                                                                                       return Err(PeerHandleError{ no_connection_possible: true });
+                                                                                               }
+                                                                                               if msg.local_features.requires_upfront_shutdown_script() {
+                                                                                                       log_info!(self, "Peer local features required upfront_shutdown_script");
                                                                                                        return Err(PeerHandleError{ no_connection_possible: true });
                                                                                                }
                                                                                                if peer.their_global_features.is_some() {
                                                                                                        return Err(PeerHandleError{ no_connection_possible: false });
                                                                                                }
+
+                                                                                               log_info!(self, "Received peer Init message: data_loss_protect: {}, initial_routing_sync: {}, upfront_shutdown_script: {}, unkown local flags: {}, unknown global flags: {}",
+                                                                                                       if msg.local_features.supports_data_loss_protect() { "supported" } else { "not supported"},
+                                                                                                       if msg.local_features.initial_routing_sync() { "requested" } else { "not requested" },
+                                                                                                       if msg.local_features.supports_upfront_shutdown_script() { "supported" } else { "not supported"},
+                                                                                                       if msg.local_features.supports_unknown_bits() { "present" } else { "none" },
+                                                                                                       if msg.global_features.supports_unknown_bits() { "present" } else { "none" });
+
                                                                                                peer.their_global_features = Some(msg.global_features);
                                                                                                peer.their_local_features = Some(msg.local_features);