Starting a 'ziti-wintun' example.

wintun-testing/ziti-wintun/main.go

@@ -0,0 +1,83 @@
+package main
+
+import (
+  "fmt"
+  "golang.org/x/sys/windows"
+  "golang.zx2c4.com/wireguard/tun"
+  "golang.zx2c4.com/wireguard/windows/tunnel/winipcfg"
+  "net"
+  "os"
+  "os/signal"
+  user2 "os/user"
+  "path/filepath"
+  "syscall"
+)
+
+func main() {
+	user, err := user2.Current()
+
+	fmt.Printf("user [%v]\n", user)
+
+	if len(os.Args) != 2 {
+		fmt.Printf("usage: %s <interfaceName>\n", filepath.Base(os.Args[0]))
+		os.Exit(1)
+	}
+	interfaceName := os.Args[1]
+
+	fmt.Println("creating TUN device")
+	tunDevice, err := tun.CreateTUN(interfaceName, 0)
+	if err == nil {
+		realInterfaceName, err2 := tunDevice.Name()
+		if err2 == nil {
+			interfaceName = realInterfaceName
+		}
+
+	} else {
+		fmt.Printf("error creating TUN device: (%v)\n", err)
+		os.Exit(1)
+	}
+	defer func() { _ = tunDevice.Close() }()
+	if name, err := tunDevice.Name(); err == nil {
+		fmt.Printf("created TUN device [%s]\n", name)
+	}
+
+	nativeTunDevice := tunDevice.(*tun.NativeTun)
+	luid := winipcfg.LUID(nativeTunDevice.LUID())
+	ip, ipnet, err := net.ParseCIDR("169.254.100.200/32")
+	if err != nil {
+		fatal(err)
+	}
+	fmt.Printf("setting TUN interface address to [%s]\n", ip)
+	err = luid.SetIPAddresses([]net.IPNet{{ip, ipnet.Mask}})
+	if err != nil {
+		fatal(err)
+	}
+	fmt.Printf("TUN interface address set to [%s]\n", ip)
+
+	fmt.Printf("routing destination [%s] through [%s]\n", *ipnet, ipnet.IP)
+	err = luid.SetRoutes([]*winipcfg.RouteData{{*ipnet, ipnet.IP, 0}})
+	if err != nil {
+		fatal(err)
+	}
+	fmt.Println("routing applied")
+
+	errs := make(chan error)
+	term := make(chan os.Signal, 1)
+
+	fmt.Println("running")
+
+	signal.Notify(term, os.Interrupt)
+	signal.Notify(term, os.Kill)
+	signal.Notify(term, syscall.SIGTERM)
+
+	select {
+	case <-term:
+	case <-errs:
+	}
+
+	fmt.Println("shutting down")
+}
+
+func fatal(v ...interface{}) {
+	panic(windows.StringToUTF16Ptr(fmt.Sprint(v...)))
+}