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Switch to wireguard driver for a better windows support
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,50 @@ | ||
| package tun | ||
|
|
||
| import ( | ||
| "io" | ||
| "runtime" | ||
|
|
||
| "golang.zx2c4.com/wireguard/tun" | ||
| ) | ||
|
|
||
| type tunnel struct { | ||
| tun.Device | ||
| } | ||
|
|
||
| func (t *tunnel) Read(b []byte) (int, error) { | ||
| if runtime.GOOS == "windows" { | ||
| return t.Device.Read(b, 0) | ||
| } | ||
| // unix.IFF_NO_PI is not set, therefore we receive packet information | ||
| n, err := t.Device.File().Read(b) | ||
| if n < 4 { | ||
| return 0, err | ||
| } | ||
| // shift slice to the left | ||
| return copy(b[:n-4], b[4:n]), nil | ||
| } | ||
|
|
||
| func (t *tunnel) Write(b []byte) (int, error) { | ||
| if runtime.GOOS == "windows" { | ||
| return t.Device.Write(b, 0) | ||
| } | ||
| return t.Device.Write(append(make([]byte, 4), b...), 4) | ||
| } | ||
|
|
||
| func (t *tunnel) Close() error { | ||
| return t.Device.Close() | ||
| } | ||
|
|
||
| func OpenTunDevice(name, addr, gw, mask string, dnsServers []string, persist bool) (io.ReadWriteCloser, error) { | ||
| tunDev, err := tun.CreateTUN(name, 1500) | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| getName, err := tunDev.Name() | ||
| if err != nil { | ||
| return nil, err | ||
| } | ||
|
|
||
| return &tunnel{Device: tunDev}, setInterface(getName, addr, gw, mask, tunDev.(*tun.NativeTun)) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,67 +1,31 @@ | ||
| package tun | ||
|
|
||
| import ( | ||
| "errors" | ||
| "fmt" | ||
| "io" | ||
| "net" | ||
| "os/exec" | ||
| "strconv" | ||
| "strings" | ||
|
|
||
| "github.com/songgao/water" | ||
| "github.com/eycorsican/go-tun2socks/routes" | ||
| "golang.zx2c4.com/wireguard/tun" | ||
| ) | ||
|
|
||
| func isIPv4(ip net.IP) bool { | ||
| if ip.To4() != nil { | ||
| return true | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| func isIPv6(ip net.IP) bool { | ||
| // To16() also valid for ipv4, ensure it's not an ipv4 address | ||
| if ip.To4() != nil { | ||
| return false | ||
| } | ||
| if ip.To16() != nil { | ||
| return true | ||
| func setInterface(name, addr, gw, mask string, tun *tun.NativeTun) error { | ||
| addrs, err := routes.ParseAddresses(addr, gw, mask) | ||
| if err != nil { | ||
| return err | ||
| } | ||
| return false | ||
| } | ||
|
|
||
| func OpenTunDevice(name, addr, gw, mask string, dnsServers []string, persist bool) (io.ReadWriteCloser, error) { | ||
| tunDev, err := water.New(water.Config{ | ||
| DeviceType: water.TUN, | ||
| }) | ||
| v, err := exec.Command("ifconfig", name, "mtu", "1500").Output() | ||
| if err != nil { | ||
| return nil, err | ||
| return fmt.Errorf("failed to set MTU: %s: %s", v, err) | ||
| } | ||
| name = tunDev.Name() | ||
| ip := net.ParseIP(addr) | ||
| if ip == nil { | ||
| return nil, errors.New("invalid IP address") | ||
| } | ||
|
|
||
| var params string | ||
| if isIPv4(ip) { | ||
| params = fmt.Sprintf("%s inet %s netmask %s %s", name, addr, mask, gw) | ||
| } else if isIPv6(ip) { | ||
| prefixlen, err := strconv.Atoi(mask) | ||
| if err != nil { | ||
| return nil, errors.New(fmt.Sprintf("parse IPv6 prefixlen failed: %v", err)) | ||
| } | ||
| params = fmt.Sprintf("%s inet6 %s/%d", name, addr, prefixlen) | ||
| } else { | ||
| return nil, errors.New("invalid IP address") | ||
| v, err = exec.Command("ifconfig", name, "inet", addrs[0].String(), addrs[1].String()).Output() | ||
| if err != nil { | ||
| return fmt.Errorf("failed to set ip addr: %s: %s", v, err) | ||
| } | ||
|
|
||
| out, err := exec.Command("ifconfig", strings.Split(params, " ")...).Output() | ||
| v, err = exec.Command("ifconfig", name, "up").Output() | ||
| if err != nil { | ||
| if len(out) != 0 { | ||
| return nil, errors.New(fmt.Sprintf("%v, output: %s", err, out)) | ||
| } | ||
| return nil, err | ||
| return fmt.Errorf("failed to bring up interface: %s: %s", v, err) | ||
| } | ||
| return tunDev, nil | ||
|
|
||
| return nil | ||
| } |
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