gossip: Added message for unsuccessful connection attempts

Signed-off-by: Christian Decker <decker.christian@gmail.com>

gossipd/gossip.c

@@ -1913,6 +1913,7 @@ static struct io_plan *recv_req(struct io_conn *conn, struct daemon_conn *master
 	case WIRE_GOSSIP_RESOLVE_CHANNEL_REPLY:
 	case WIRE_GOSSIP_PEER_CONNECTED:
 	case WIRE_GOSSIP_PEER_ALREADY_CONNECTED:
+	case WIRE_GOSSIP_PEER_CONNECTION_FAILED:
 	case WIRE_GOSSIP_PEER_NONGOSSIP:
 	case WIRE_GOSSIP_GET_UPDATE:
 	case WIRE_GOSSIP_GET_UPDATE_REPLY:

gossipd/gossip_wire.csv

@@ -43,6 +43,12 @@ gossip_peer_connected,,lfeatures,lflen*u8
 gossip_peer_already_connected,3015
 gossip_peer_already_connected,,id,struct pubkey
 
+# gossipd -> master: attempted to connect, unsuccessful, gave up
+gossip_peer_connection_failed,3020
+gossip_peer_connection_failed,,id,struct pubkey
+gossip_peer_connection_failed,,timeout,u32
+gossip_peer_connection_failed,,attempts,u32
+
 # Gossipd -> master: peer sent non-gossip packet. Two fds: peer and gossip
 gossip_peer_nongossip,3003
 gossip_peer_nongossip,,id,struct pubkey

lightningd/gossip_control.c

@@ -133,6 +133,9 @@ static unsigned gossip_msg(struct subd *gossip, const u8 *msg, const int *fds)
 	case WIRE_GOSSIP_PEER_ALREADY_CONNECTED:
 		peer_already_connected(gossip->ld, msg);
 		break;
+	case WIRE_GOSSIP_PEER_CONNECTION_FAILED:
+		/* TODO(cdecker) Implement handler */
+		break;
 	case WIRE_GOSSIP_PEER_NONGOSSIP:
 		if (tal_count(fds) != 2)
 			return 2;