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Code Issues Releases Wiki Activity

wintun: also set friendly name after setting interface name

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This commit is contained in:
Jason A. Donenfeld 2019-08-19 09:20:23 +02:00
parent 333de75370
commit eb786cd7c1
1 changed files with 23 additions and 8 deletions
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31
tun/wintun/wintun_windows.go
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@ -563,19 +563,34 @@ func (wintun *Wintun) InterfaceName() (string, error) {
// SetInterfaceName sets name of the Wintun interface.
func (wintun *Wintun) SetInterfaceName(ifname string) error {
netRegKey, err := registry.OpenKey(registry.LOCAL_MACHINE, wintun.netRegKeyName(), registry.SET_VALUE)
if err != nil {
return fmt.Errorf("Network-specific registry key open failed: %v", err)
}
defer netRegKey.Close()
err = netRegKey.SetStringValue("Name", ifname)
if err != nil {
return err
}
deviceRegKey, err := registry.OpenKey(registry.LOCAL_MACHINE, wintun.deviceRegKeyName(), registry.SET_VALUE)
if err != nil {
return fmt.Errorf("Device-level registry key open failed: %v", err)
}
defer deviceRegKey.Close()
err = deviceRegKey.SetStringValue("DeviceDesc", deviceTypeName)
if err != nil {
return err
}
err = deviceRegKey.SetStringValue("FriendlyName", deviceTypeName)
if err != nil {
return err
}
// We have to tell the various runtime COM services about the new name too. We ignore the
// error because netshell isn't available on servercore.
// TODO: netsh.exe falls back to NciSetConnection in this case. If somebody complains, maybe
// we should do the same.
netshell.HrRenameConnection(&wintun.cfgInstanceID, windows.StringToUTF16Ptr(ifname))
// Set the interface name. The above line should have done this too, but in case it failed, we force it.
key, err := registry.OpenKey(registry.LOCAL_MACHINE, wintun.netRegKeyName(), registry.SET_VALUE)
if err != nil {
return fmt.Errorf("Network-specific registry key open failed: %v", err)
}
defer key.Close()
return key.SetStringValue("Name", ifname)
return nil
}
// netRegKeyName returns the interface-specific network registry key name.