netlink: move Route type to common arch file

Docker-DCO-1.1-Signed-off-by: Johan Euphrosine <proppy@google.com> (github: proppy)
Upstream-commit: dadd54dba395f68c492a8ce5e2bf9488f9db0830
Component: engine

components/engine/pkg/netlink/netlink.go

@@ -0,0 +1,15 @@
+// Packet netlink provide access to low level Netlink sockets and messages.
+//
+// Actual implementations are in:
+// netlink_linux.go
+// netlink_darwin.go
+package netlink
+
+import "net"
+
+// A Route is a subnet associated with the interface to reach it.
+type Route struct {
+	*net.IPNet
+	Iface   *net.Interface
+	Default bool
+}

components/engine/pkg/netlink/netlink_linux.go

@@ -471,13 +471,6 @@ func NetworkLinkAdd(name string, linkType string) error {
 	return s.HandleAck(wb.Seq)
 }
 
-// A Route is a subnet associated with the interface to reach it.
-type Route struct {
-	*net.IPNet
-	Iface   *net.Interface
-	Default bool
-}
-
 // Returns an array of IPNet for all the currently routed subnets on ipv4
 // This is similar to the first column of "ip route" output
 func NetworkGetRoutes() ([]Route, error) {