1 files changed, 0 insertions, 63 deletions
diff --git a/pkg/tcpip/link/tun/tun_unsafe.go b/pkg/tcpip/link/tun/tun_unsafe.go
deleted file mode 100644
index 09ca9b527..000000000
--- a/pkg/tcpip/link/tun/tun_unsafe.go
+++ /dev/null
@@ -1,63 +0,0 @@
-// Copyright 2018 The gVisor Authors.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-// +build linux
-
-// Package tun contains methods to open TAP and TUN devices.
-package tun
-
-import (
-	"syscall"
-	"unsafe"
-)
-
-// Open opens the specified TUN device, sets it to non-blocking mode, and
-// returns its file descriptor.
-func Open(name string) (int, error) {
-	return open(name, syscall.IFF_TUN|syscall.IFF_NO_PI)
-}
-
-// OpenTAP opens the specified TAP device, sets it to non-blocking mode, and
-// returns its file descriptor.
-func OpenTAP(name string) (int, error) {
-	return open(name, syscall.IFF_TAP|syscall.IFF_NO_PI)
-}
-
-func open(name string, flags uint16) (int, error) {
-	fd, err := syscall.Open("/dev/net/tun", syscall.O_RDWR, 0)
-	if err != nil {
-		return -1, err
-	}
-
-	var ifr struct {
-		name  [16]byte
-		flags uint16
-		_     [22]byte
-	}
-
-	copy(ifr.name[:], name)
-	ifr.flags = flags
-	_, _, errno := syscall.Syscall(syscall.SYS_IOCTL, uintptr(fd), syscall.TUNSETIFF, uintptr(unsafe.Pointer(&ifr)))
-	if errno != 0 {
-		syscall.Close(fd)
-		return -1, errno
-	}
-
-	if err = syscall.SetNonblock(fd, true); err != nil {
-		syscall.Close(fd)
-		return -1, err
-	}
-
-	return fd, nil
-}