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tun: remove nonblock hack for linux 

This is no longer necessary and actually breaks things

Reported-by: Chris Branch <cbranch@cloudflare.com>
This commit is contained in:
Jason A. Donenfeld 2018-12-06 17:17:51 +01:00
parent 4fd55daafe
commit 651744561e
1 changed files with 0 additions and 10 deletions
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10
tun/tun_linux.go
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@ -368,21 +368,11 @@ func (tun *nativeTun) Close() error {
}
func CreateTUN(name string, mtu int) (TUNDevice, error) {
// open clone device
// HACK: we open it as a raw Fd first, so that f.nonblock=false
// when we make it into a file object.
nfd, err := unix.Open(cloneDevicePath, os.O_RDWR, 0)
if err != nil {
return nil, err
}
err = unix.SetNonblock(nfd, true)
if err != nil {
return nil, err
}
fd := os.NewFile(uintptr(nfd), cloneDevicePath)
if err != nil {
return nil, err