// Get the IPAddress only if one is present
// this could be usefull to find the broadcast address even if the socket is open on the default interface
// removes somes virtual interfaces (certainly not all)
private Net.NetworkInformation.UnicastIPAddressInformation GettAddress_DefaultInterface()
{
Net.NetworkInformation.UnicastIPAddressInformation UniIP = null;
int NbAdd = 0;
foreach (System.Net.NetworkInformation.NetworkInterface adapter in System.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces())
{
if (adapter.OperationalStatus == System.Net.NetworkInformation.OperationalStatus.Up)
{
if (adapter.NetworkInterfaceType != System.Net.NetworkInformation.NetworkInterfaceType.Loopback)
{
if (!(adapter.Description.Contains("VirtualBox") || adapter.Description.Contains("VMware")))
{
foreach (System.Net.NetworkInformation.UnicastIPAddressInformation ip in adapter.GetIPProperties().UnicastAddresses)
{
if (ip.Address.AddressFamily == Net.Sockets.AddressFamily.InterNetwork)
{
UniIP = ip;
NbAdd++;
}
}
}
}
}
}
if (NbAdd == 1)
{
return(UniIP);
}
else
{
return(null);
}
}
// A lot of problems on Mono (Raspberry) to get the correct broadcast @
// so this method is overridable (this allows the implementation of operating system specific code)
// Marc solution http://stackoverflow.com/questions/8119414/how-to-query-the-subnet-masks-using-mono-on-linux for instance
//
protected virtual BacnetAddress _GetBroadcastAddress()
{
// general broadcast by default if nothing better is found
System.Net.IPEndPoint ep = new Net.IPEndPoint(System.Net.IPAddress.Parse("255.255.255.255"), m_port);
Net.NetworkInformation.UnicastIPAddressInformation ipAddr = null;
if (LocalEndPoint.Address.ToString() == "0.0.0.0")
{
ipAddr = GettAddress_DefaultInterface();
}
else
{
// restricted local broadcast (directed ... routable)
foreach (System.Net.NetworkInformation.NetworkInterface adapter in System.Net.NetworkInformation.NetworkInterface.GetAllNetworkInterfaces())
{
foreach (System.Net.NetworkInformation.UnicastIPAddressInformation ip in adapter.GetIPProperties().UnicastAddresses)
{
if (LocalEndPoint.Address.Equals(ip.Address))
{
ipAddr = ip;
break;
}
}
}
}
if (ipAddr != null)
{
try
{
string[] strCurrentIP = ipAddr.Address.ToString().Split('.');
string[] strIPNetMask = ipAddr.IPv4Mask.ToString().Split('.');
StringBuilder BroadcastStr = new StringBuilder();
for (int i = 0; i < 4; i++)
{
BroadcastStr.Append(((byte)(int.Parse(strCurrentIP[i]) | ~int.Parse(strIPNetMask[i]))).ToString());
if (i != 3)
{
BroadcastStr.Append('.');
}
}
ep = new Net.IPEndPoint(System.Net.IPAddress.Parse(BroadcastStr.ToString()), m_port);
}
catch { } //On mono IPv4Mask feature not implemented
}
BacnetAddress broadcast;
Convert(ep, out broadcast);
broadcast.net = 0xFFFF;
return(broadcast);
}
