Struct NativeTun

polyamide/tun/tun_linux.go:30–56

)

type NativeTun struct {
	tunFile                 *os.File
	index                   int32      // if index
	errors                  chan error // async error handling
	events                  chan Event // device related events
	netlinkSock             int
	netlinkCancel           *rwcancel.RWCancel
	hackListenerClosed      sync.Mutex
	statusListenersShutdown chan struct{}
	batchSize               int
	vnetHdr                 bool
	udpGSO                  bool

	closeOnce sync.Once

	nameOnce  sync.Once // guards calling initNameCache, which sets following fields
	nameCache string    // name of interface
	nameErr   error

	readOpMu sync.Mutex                    // readOpMu guards readBuff
	readBuff [virtioNetHdrLen + 65535]byte // if vnetHdr every read() is prefixed by virtioNetHdr

	writeOpMu   sync.Mutex // writeOpMu guards toWrite, tcpGROTable
	toWrite     []int
	tcpGROTable *tcpGROTable
	udpGROTable *udpGROTable
}

func (tun *NativeTun) File() *os.File {
	return tun.tunFile