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tun: remove unused isUp method

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Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit is contained in:
Brad Fitzpatrick 2020-02-28 08:53:29 -08:00 committed by Jason A. Donenfeld
parent 203554620d
commit abd287159e
1 changed files with 0 additions and 6 deletions
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6
tun/tun_linux.go
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@ -12,7 +12,6 @@ import (
"bytes" "bytes"
"errors" "errors"
"fmt" "fmt"
"net"
"os" "os"
"sync" "sync"
"syscall" "syscall"
@ -164,11 +163,6 @@ func (tun *NativeTun) routineNetlinkListener() {
} }
} }
func (tun *NativeTun) isUp() (bool, error) {
inter, err := net.InterfaceByName(tun.name)
return inter.Flags&net.FlagUp != 0, err
}
func getIFIndex(name string) (int32, error) { func getIFIndex(name string) (int32, error) {
fd, err := unix.Socket( fd, err := unix.Socket(
unix.AF_INET, unix.AF_INET,