Add new functions to unsupported file

Docker-DCO-1.1-Signed-off-by: Michael Crosby <michael@crosbymichael.com> (github: crosbymichael)

pkg/netlink/netlink_unsupported.go

@@ -3,31 +3,59 @@
 package netlink
 
 import (
-	"fmt"
+	"errors"
 	"net"
 )
 
+var (
+	ErrNotImplemented = errors.New("not implemented")
+)
+
 func NetworkGetRoutes() ([]Route, error) {
-	return nil, fmt.Errorf("Not implemented")
+	return nil, ErrNotImplemented
 }
 
 func NetworkLinkAdd(name string, linkType string) error {
-	return fmt.Errorf("Not implemented")
+	return ErrNotImplemented
 }
 
 func NetworkLinkUp(iface *net.Interface) error {
-	return fmt.Errorf("Not implemented")
+	return ErrNotImplemented
 }
 
 func NetworkLinkAddIp(iface *net.Interface, ip net.IP, ipNet *net.IPNet) error {
-	return fmt.Errorf("Not implemented")
+	return ErrNotImplemented
 }
 
 func AddDefaultGw(ip net.IP) error {
-	return fmt.Errorf("Not implemented")
+	return ErrNotImplemented
 
 }
 
 func NetworkSetMTU(iface *net.Interface, mtu int) error {
-	return fmt.Errorf("Not implemented")
+	return ErrNotImplemented
+}
+
+func NetworkCreateVethPair(name1, name2 string) error {
+	return ErrNotImplemented
+}
+
+func NetworkChangeName(iface *net.Interface, newName string) error {
+	return ErrNotImplemented
+}
+
+func NetworkSetNsFd(iface *net.Interface, fd int) error {
+	return ErrNotImplemented
+}
+
+func NetworkSetNsPid(iface *net.Interface, nspid int) error {
+	return ErrNotImplemented
+}
+
+func NetworkSetMaster(iface, master *net.Interface) error {
+	return ErrNotImplemented
+}
+
+func NetworkLinkDown(iface *net.Interface) error {
+	return ErrNotImplemented
 }