diff options
Diffstat (limited to 'tunnel/defaultroutemonitor.go')
| -rw-r--r-- | tunnel/defaultroutemonitor.go | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/tunnel/defaultroutemonitor.go b/tunnel/defaultroutemonitor.go index aa0db675..ac4241c9 100644 --- a/tunnel/defaultroutemonitor.go +++ b/tunnel/defaultroutemonitor.go @@ -11,9 +11,7 @@ import ( "time" "golang.org/x/sys/windows" - "golang.zx2c4.com/wireguard/conn" - "golang.zx2c4.com/wireguard/tun" "golang.zx2c4.com/wireguard/windows/tunnel/winipcfg" ) @@ -61,14 +59,17 @@ func bindSocketRoute(family winipcfg.AddressFamily, binder conn.BindSocketToInte return nil } -func monitorDefaultRoutes(family winipcfg.AddressFamily, binder conn.BindSocketToInterface, autoMTU bool, blackholeWhenLoop bool, tun *tun.NativeTun) ([]winipcfg.ChangeCallback, error) { +type mtuClamper interface { + ForceMTU(mtu int) +} + +func monitorDefaultRoutes(family winipcfg.AddressFamily, binder conn.BindSocketToInterface, autoMTU bool, blackholeWhenLoop bool, clamper mtuClamper, ourLUID winipcfg.LUID) ([]winipcfg.ChangeCallback, error) { var minMTU uint32 if family == windows.AF_INET { minMTU = 576 } else if family == windows.AF_INET6 { minMTU = 1280 } - ourLUID := winipcfg.LUID(tun.LUID()) lastLUID := winipcfg.LUID(0) lastIndex := ^uint32(0) lastMTU := uint32(0) @@ -103,7 +104,11 @@ func monitorDefaultRoutes(family winipcfg.AddressFamily, binder conn.BindSocketT if err != nil { return err } - tun.ForceMTU(int(iface.NLMTU)) // TODO: having one MTU for both v4 and v6 kind of breaks the windows model, so right now this just gets the second one which is... bad. + + // Having one MTU for both v4 and v6 kind of breaks the Windows model, so right now this just gets the + // second one which looks bad. However, internally, it doesn't seem like the Windows stack differentiates + // anyway, so it's probably fine. + clamper.ForceMTU(int(iface.NLMTU)) lastMTU = mtu } return nil |