@@ -352,7 +352,8 @@ func setInterfaceMaster(nlh *netlink.Handle, iface netlink.Link, i *nwIface) err

 	}

 	return nlh.LinkSetMaster(iface, &netlink.Bridge{

-		LinkAttrs: netlink.LinkAttrs{Name: i.DstMaster()}})

+		LinkAttrs: netlink.LinkAttrs{Name: i.DstMaster()},

+	})

 }

 func setInterfaceMAC(nlh *netlink.Handle, iface netlink.Link, i *nwIface) error {

@@ -13,7 +13,7 @@ import (

 // For e.g. net.ipv4.ip_forward translated to /proc/sys/net/ipv4/ip_forward.

 func writeSystemProperty(key, value string) error {

 	keyPath := strings.ReplaceAll(key, ".", "/")

-	return os.WriteFile(path.Join("/proc/sys", keyPath), []byte(value), 0644)

+	return os.WriteFile(path.Join("/proc/sys", keyPath), []byte(value), 0o644)

 }

 // readSystemProperty reads the value from the path under /proc/sys and returns it

@@ -73,7 +73,7 @@ func basePath() string {

 }

 func createBasePath() {

-	err := os.MkdirAll(basePath(), 0755)

+	err := os.MkdirAll(basePath(), 0o755)

 	if err != nil {

 		panic("Could not create net namespace path directory")

 	}

@@ -380,12 +380,12 @@ func (n *networkNamespace) DisableARPForVIP(srcName string) (Err error) {

 	err := n.InvokeFunc(func() {

 		path := filepath.Join("/proc/sys/net/ipv4/conf", dstName, "arp_ignore")

-		if err := os.WriteFile(path, []byte{'1', '\n'}, 0644); err != nil {

+		if err := os.WriteFile(path, []byte{'1', '\n'}, 0o644); err != nil {

 			Err = fmt.Errorf("Failed to set %s to 1: %v", path, err)

 			return

 		}

 		path = filepath.Join("/proc/sys/net/ipv4/conf", dstName, "arp_announce")

-		if err := os.WriteFile(path, []byte{'2', '\n'}, 0644); err != nil {

+		if err := os.WriteFile(path, []byte{'2', '\n'}, 0o644); err != nil {

 			Err = fmt.Errorf("Failed to set %s to 2: %v", path, err)

 			return

 		}

@@ -58,7 +58,8 @@ func newKey(t *testing.T) (string, error) {

 func newInfo(hnd *netlink.Handle, t *testing.T) (Sandbox, error) {

 	veth := &netlink.Veth{

 		LinkAttrs: netlink.LinkAttrs{Name: vethName1, TxQLen: 0},

-		PeerName:  vethName2}

+		PeerName:  vethName2,

+	}

 	if err := hnd.LinkAdd(veth); err != nil {

 		return nil, err

 	}

@@ -97,7 +98,8 @@ func newInfo(hnd *netlink.Handle, t *testing.T) (Sandbox, error) {

 	veth = &netlink.Veth{

 		LinkAttrs: netlink.LinkAttrs{Name: vethName3, TxQLen: 0},

-		PeerName:  vethName4}

+		PeerName:  vethName4,

+	}

 	if err := hnd.LinkAdd(veth); err != nil {

 		return nil, err

@@ -4,10 +4,8 @@ package osl

 import "errors"

-var (

-	// ErrNotImplemented is for platforms which don't implement sandbox

-	ErrNotImplemented = errors.New("not implemented")

-)

+// ErrNotImplemented is for platforms which don't implement sandbox

+var ErrNotImplemented = errors.New("not implemented")

 // NewSandbox provides a new sandbox instance created in an os specific way

 // provided a key which uniquely identifies the sandbox