gtuntap

func (*Iface) Close ¶

func (i *Iface) Close() error

func (*Iface) DeleteNetRoute ¶

func (i *Iface) DeleteNetRoute(destNet net.IPNet) error

func (*Iface) DestIP ¶

func (i *Iface) DestIP() net.IP

func (*Iface) DeviceIPNet ¶

func (i *Iface) DeviceIPNet() net.IPNet

func (*Iface) Name ¶

func (i *Iface) Name() string

Name returns device name. On macOS, it is generated by system, but not from `name` param of `New(...)` function.

func (*Iface) Read ¶

func (i *Iface) Read(pkt []byte) (int, error)

func (*Iface) ServeByConn ¶

func (i *Iface) ServeByConn(conn io.ReadWriteCloser) error

ServeByConn starts VPN after accept `.vpn` stream.

func (*Iface) ServeByDeviceData ¶

func (i *Iface) ServeByDeviceData(openRWC OpenRWC) (bool, error)

ServeByDeviceData starts VPN after device accepted IP packet. 只有从虚拟网卡中读到数据，才去建立`.vpn` stream，并进行交换

func (*Iface) SudoAddNetRoute ¶

func (i *Iface) SudoAddNetRoute(destNet net.IPNet) error

SudoAddNetRoute add `net` type route, all traffic sent to destNet will be forward to current TUN/TAP device.

func (*Iface) SudoSetup ¶

func (i *Iface) SudoSetup() error

SudoSetup starts a TUN/TAP device.

Notice： 1、如果程序退出，即使是强行结束进程，TUN设备、ifconfig所自动创建的临时路由、通过route命令创建的TUN设备相关的临时路由，都会被系统自动清除。macOS下亲测如此

func (*Iface) Write ¶

func (i *Iface) Write(pkt []byte) (int, error)

func (PacketIP) GetDestinationIP ¶

func (p PacketIP) GetDestinationIP() net.IP

func (PacketIP) GetSourceIP ¶

func (p PacketIP) GetSourceIP() net.IP