cosmetic: move UDPPacket type from types.go to router.go

router/router.go

@@ -195,6 +195,16 @@ func (router *Router) listenUDP(localPort int, po PacketSink) *net.UDPConn {
 	return conn
 }
 
+type UDPPacket struct {
+	Name   PeerName
+	Packet []byte
+	Sender *net.UDPAddr
+}
+
+func (packet UDPPacket) String() string {
+	return fmt.Sprintf("UDP Packet\n name: %s\n sender: %v\n payload: % X", packet.Name, packet.Sender, packet.Packet)
+}
+
 func (router *Router) udpReader(conn *net.UDPConn, po PacketSink) {
 	defer conn.Close()
 	dec := NewEthernetDecoder()

router/types.go

@@ -1,15 +1,5 @@
 package router
 
-import (
-	"net"
-)
-
-type UDPPacket struct {
-	Name   PeerName
-	Packet []byte
-	Sender *net.UDPAddr
-}
-
 type ForwardedFrame struct {
 	srcPeer *Peer
 	dstPeer *Peer

router/utils.go

@@ -50,10 +50,6 @@ func (pde PacketDecodingError) Error() string {
 	return fmt.Sprint("Failed to decode packet: ", pde.Desc)
 }
 
-func (packet UDPPacket) String() string {
-	return fmt.Sprintf("UDP Packet\n name: %s\n sender: %v\n payload: % X", packet.Name, packet.Sender, packet.Packet)
-}
-
 func Concat(elems ...[]byte) []byte {
 	res := []byte{}
 	for _, e := range elems {