Feature: windows tun more params support

Supported params:

- Name
- MTU
- ComponentID
- Network

engine/parse.go

@@ -7,7 +7,6 @@ import (
 	"strings"
 
 	"github.com/xjasonlyu/tun2socks/device"
-	"github.com/xjasonlyu/tun2socks/device/tun"
 	"github.com/xjasonlyu/tun2socks/proxy"
 )
 
@@ -22,14 +21,12 @@ func parseDevice(s string, mtu uint32) (device.Device, error) {
 		return nil, err
 	}
 
-	name := u.Host
-	driver := u.Scheme
-
 	var d device.Device
 
+	driver := strings.ToLower(u.Scheme)
 	switch driver {
 	case "tun":
-		d, err = tun.Open(tun.WithName(name), tun.WithMTU(mtu))
+		d, err = openTUN(u, mtu)
 	default:
 		err = fmt.Errorf("unsupported driver: %s", driver)
 	}

engine/tun.go

@@ -0,0 +1,15 @@
+// +build !windows
+
+package engine
+
+import (
+	"net/url"
+
+	"github.com/xjasonlyu/tun2socks/device"
+	"github.com/xjasonlyu/tun2socks/device/tun"
+)
+
+func openTUN(u *url.URL, mtu uint32) (device.Device, error) {
+	name := u.Host
+	return tun.Open(tun.WithName(name), tun.WithMTU(mtu))
+}

engine/tun_windows.go

@@ -0,0 +1,33 @@
+package engine
+
+import (
+	"net/url"
+
+	"github.com/xjasonlyu/tun2socks/device"
+	"github.com/xjasonlyu/tun2socks/device/tun"
+)
+
+func openTUN(u *url.URL, mtu uint32) (device.Device, error) {
+	/*
+	  e.g. tun://TUN0/?id=tap0901&network=10.10.10.10/24
+	*/
+
+	name := u.Host
+
+	componentID := u.Query().Get("id")
+	network := u.Query().Get("network")
+
+	if componentID == "" {
+		componentID = "tap0901" /* default */
+	}
+	if network == "" {
+		network = "10.10.10.10/24" /* default */
+	}
+
+	return tun.Open(
+		tun.WithName(name),
+		tun.WithMTU(mtu),
+		tun.WithComponentID(componentID),
+		tun.WithNetwork(network),
+	)
+}