protected override int Execute()
{
var config = FindConfig();
if (config.Selected.IPAddress == null)
{
return(WriteError("No IP address specified"));
}
WriteDebug($"Target IP address is {config.Selected.IPAddress}");
WriteDebug();
try
{
var mac = ExecuteDirect(config.Selected.IPAddressRaw);
var strmac = EncodingConverter.ByteArrayToHexDump(mac, ":", -1, string.Empty, true);
return(WriteInfoOutput(strmac, $"The MAC address of {config.Selected.IPAddress} is {strmac}"));
}
catch (TaskException)
{
throw;
}
catch (Exception e)
{
return(WriteError($"An error occured while sending ARP package: {e.Message}", e));
}
}
private void SendWOL(byte[] macaddr)
{
var packet = new List <byte>();
for (var i = 0; i < 6; i++)
{
packet.Add(0xFF);
}
for (var i = 0; i < 16; i++)
{
packet.AddRange(macaddr);
}
WriteDebug($"Sending UDP package to [{IPAddress.Broadcast}]:{42} with data\n{EncodingConverter.ByteArrayToHexDump(packet, ":", 6, "", true)}");
WriteDebug();
using (var client = new UdpClient())
{
client.Connect(IPAddress.Broadcast, 42);
client.Send(packet.ToArray(), packet.Count);
client.Close();
}
}
private void SendWOL(byte[] macaddr, IPAddress ipaddr)
{
var packet = new List <byte>();
for (var i = 0; i < 6; i++)
{
packet.Add(0xFF);
}
for (var i = 0; i < 16; i++)
{
packet.AddRange(macaddr);
}
WriteDebug($"Sending UDP package to [{IPAddress.Broadcast}]:{42} with data\n{EncodingConverter.ByteArrayToHexDump(packet, ":", 6, "", true)}");
WriteDebug();
using (var client = new UdpClient())
{
client.Connect(IPAddress.Broadcast, 42);
client.Send(packet.ToArray(), packet.Count);
client.Close();
}
if (ipaddr != null && ipaddr.AddressFamily == AddressFamily.InterNetwork)
{
WriteDebug($"Trying to determine the broadcast adress for [{ipaddr}] in all available adapters");
WriteDebug();
foreach (var iface in NetworkInterface.GetAllNetworkInterfaces().Where(p => p.NetworkInterfaceType != NetworkInterfaceType.Loopback).OrderBy(p => p.OperationalStatus))
{
var anymatch = false;
foreach (var ipinfo in iface.GetIPProperties().UnicastAddresses.AsEnumerable().Where(p => p.Address.AddressFamily == AddressFamily.InterNetwork))
{
if (ipaddr.IsPartOfSubnet(ipinfo.Address, ipinfo.IPv4Mask))
{
WriteDebug($"Found matching subnet [{ipinfo.Address}|{ipinfo.IPv4Mask}] in adapter \"{iface.Name}\"");
WriteDebug();
anymatch = true;
var broadcast = ipinfo.Address.GetBroadcastAddress(ipinfo.IPv4Mask);
if (broadcast == null)
{
continue;
}
WriteDebug($"Sending UDP package to [{broadcast}]:{42} with data\n{EncodingConverter.ByteArrayToHexDump(packet, ":", 6, "", true)}");
WriteDebug();
using (var client = new UdpClient())
{
client.Connect(broadcast, 42);
client.Send(packet.ToArray(), packet.Count);
client.Close();
}
}
}
if (!anymatch)
{
WriteDebug($"Found no matching subnet in adapter \"{iface.Name}\"");
WriteDebug();
}
}
}
}