添加苹果支持

iface_darwin.go

@@ -0,0 +1,46 @@
+//go:build darwin
+
+package Atom_Device
+
+import (
+	"fmt"
+	"net"
+	"os/exec"
+	"strconv"
+
+	"golang.zx2c4.com/wireguard/tun"
+)
+
+// TODO: untested
+func NewTUN(ifname string, mtu int, localIP net.IP, ipMask net.IPMask) (tun.Device, error) {
+	ipNet := &net.IPNet{
+		IP:   localIP,
+		Mask: ipMask,
+	}
+
+	tunDevice, err := tun.CreateTUN(ifname, mtu)
+	if err != nil {
+		return nil, fmt.Errorf("create tun: %v", err)
+	}
+	// Interface name must be utun[0-9]*
+	realIfname, err := tunDevice.Name()
+	if err != nil {
+		return nil, fmt.Errorf("get interface name: %v", err)
+	}
+
+	err = exec.Command("ifconfig", realIfname, "inet", ipNet.String(), "mtu", strconv.FormatInt(int64(mtu), 10), "up").Run()
+	if err != nil {
+		return nil, fmt.Errorf("unable to setup interface: %v", err)
+	}
+
+	return tunDevice, nil
+}
+
+func (d *Device) InterfaceName() (string, error) {
+	interfaceName, err := d.tun.Name()
+	if err != nil {
+		return "", err
+	}
+
+	return interfaceName, nil
+}