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Fix: suppress panic when wintun.dll not found

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xjasonlyu
2022-02-07 17:31:28 +08:00
parent b5794661b5
commit bf35298289
1 changed files with 9 additions and 3 deletions
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core/device/tun/tun_wireguard.go
+9 -3
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@@ -21,7 +21,13 @@ type TUN struct {
offset int
}
func Open(name string, mtu uint32) (device.Device, error) {
func Open(name string, mtu uint32) (_ device.Device, err error) {
defer func() {
if r := recover(); r != nil {
err = fmt.Errorf("open tun: %v", r)
}
}()
var (
offset = 4 /* 4 bytes TUN_PI */
defaultMTU = 1500
@@ -44,11 +50,11 @@ func Open(name string, mtu uint32) (device.Device, error) {
}
t.nt = nt.(*tun.NativeTun)
_mtu, err := nt.MTU()
tunMTU, err := nt.MTU()
if err != nil {
return nil, fmt.Errorf("get mtu: %w", err)
}
t.mtu = uint32(_mtu)
t.mtu = uint32(tunMTU)
ep, err := iobased.New(t, t.mtu, offset)
if err != nil {