public void DevconHelper_BadCommand_ExceptionThrown()
{
// Arrange
// Act
DevconHelper.RunCommand("NOT_A_REAL_COMMAND");
}
/// <summary>
/// Remove all loopback interfaces. By default only removes interfaces created with
/// Loopback.NET but can also remove other loop back interfaces
/// </summary>
/// <param name="onlyLoopbackNetIfaces">True to remove only interfaces created with Loopback.NET, false to remove all</param>
public static void RemoveAll(bool onlyLoopbackNetIfaces = true)
{
string idToRemove;
if (onlyLoopbackNetIfaces)
{
// Adding wildcard (*) to capture all matchinv devices
idToRemove = _LPNET_TOKEN_PREFIX + "*";
}
else
{
// Adding wildcard (*) to capture all matchinv devices
idToRemove = _MSLOOP_DEFAULT_HWID + "*";
}
DevconHelper.Remove(idToRemove);
}
public static LoopbackInterface Create(string name = null)
{
string removalToken;
// Getting current defined interfaces, so we can deduce which new interface was created
NetworkInterface[] oldInterfaces = NetworkInterface.GetAllNetworkInterfaces();
// Check if an interface already exists with this name
NetworkInterface candidate = oldInterfaces.SingleOrDefault(iface => iface.Name == name);
if (candidate != null)
{
removalToken = _LPNET_TOKEN_PREFIX + candidate.Id;
return(new LoopbackInterface(candidate, removalToken));
}
// This process required admin privileges. If we don't have those, there's no point trying
AssertAdminPriv();
// Mark existing interfaces
DevconHelper.AddHWID(_MSLOOP_DEFAULT_HWID, _LPNET_TEMP_HWID);
DevconHelper.RemoveHWID(_MSLOOP_DEFAULT_HWID, _MSLOOP_DEFAULT_HWID);
// Running DEVCON util to create a new (unnamed) loopback device
DevconHelper.Install(@"%WINDIR%\Inf\Netloop.inf", _MSLOOP_DEFAULT_HWID);
// Getting interfaces after the loop back addition
NetworkInterface[] newInterfaces = NetworkInterface.GetAllNetworkInterfaces();
// Filtering previous interfaces from current interfaces, trying to narrow down the options for the new interface
NetworkInterface[] diffInterfaces = newInterfaces.Except(oldInterfaces, new NetInterfacesComparer()).ToArray();
if (diffInterfaces.Length == 0)
{
// Restore previous interfaces' hwid before throwing
DevconHelper.AddHWID(_LPNET_TEMP_HWID, _MSLOOP_DEFAULT_HWID);
DevconHelper.RemoveHWID(_LPNET_TEMP_HWID, _LPNET_TEMP_HWID);
throw new Exception("No new interface could be found after devcon finished.");
}
if (diffInterfaces.Length > 1)
{
// Restore previous interfaces' hwid before throwing
DevconHelper.AddHWID(_LPNET_TEMP_HWID, _MSLOOP_DEFAULT_HWID);
DevconHelper.RemoveHWID(_LPNET_TEMP_HWID, _LPNET_TEMP_HWID);
throw new Exception(
$"Expected exactly 1 new interfaces, found {diffInterfaces.Length}. New interfaces: {string.Join(",", diffInterfaces.Select(iface => iface.Name).ToArray())}");
}
// We found our new loopback device!
NetworkInterface loopbackDevice = diffInterfaces.Single();
// Mark newly creating device with special removal token
removalToken = _LPNET_TOKEN_PREFIX + loopbackDevice.Id;
DevconHelper.AddHWID("*MSLOOP", removalToken);
// Restore previous interfaces' hwid
DevconHelper.AddHWID(_LPNET_TEMP_HWID, _MSLOOP_DEFAULT_HWID);
DevconHelper.RemoveHWID(_LPNET_TEMP_HWID, _LPNET_TEMP_HWID);
// Check if rename required
if (name != null)
{
// Specific name requested, call sub-function
RenameInterface(loopbackDevice, name);
// Retrieve new, updated, NetworkInterface object with the new name
loopbackDevice = NetworkInterface.GetAllNetworkInterfaces().Single(iface => iface.Id == loopbackDevice.Id);
}
return(new LoopbackInterface(loopbackDevice, removalToken));
}
/// <summary>
/// Remove a specific Loopback device
/// </summary>
/// <param name="loopback">Device to remove</param>
public static void Remove(LoopbackInterface loopback)
{
DevconHelper.Remove(loopback.RemovalToken);
}