diff options
Diffstat (limited to 'tun/tun_windows.go')
| -rw-r--r-- | tun/tun_windows.go | 13 |
1 files changed, 9 insertions, 4 deletions
diff --git a/tun/tun_windows.go b/tun/tun_windows.go index 4b5da02..daad4aa 100644 --- a/tun/tun_windows.go +++ b/tun/tun_windows.go @@ -54,15 +54,15 @@ func nanotime() int64 // CreateTUN creates a Wintun interface with the given name. Should a Wintun // interface with the same name exist, it is reused. // -func CreateTUN(ifname string) (Device, error) { - return CreateTUNWithRequestedGUID(ifname, nil) +func CreateTUN(ifname string, mtu int) (Device, error) { + return CreateTUNWithRequestedGUID(ifname, nil, mtu) } // // CreateTUNWithRequestedGUID creates a Wintun interface with the given name and // a requested GUID. Should a Wintun interface with the same name exist, it is reused. // -func CreateTUNWithRequestedGUID(ifname string, requestedGUID *windows.GUID) (Device, error) { +func CreateTUNWithRequestedGUID(ifname string, requestedGUID *windows.GUID, mtu int) (Device, error) { var err error var wt *wintun.Interface @@ -80,12 +80,17 @@ func CreateTUNWithRequestedGUID(ifname string, requestedGUID *windows.GUID) (Dev return nil, fmt.Errorf("Error creating interface: %v", err) } + forcedMTU := 1420 + if mtu > 0 { + forcedMTU = mtu + } + tun := &NativeTun{ wt: wt, handle: windows.InvalidHandle, events: make(chan Event, 10), errors: make(chan error, 1), - forcedMTU: 1500, + forcedMTU: forcedMTU, } err = tun.rings.Init() |