/// <summary>
/// Generate unique machine identifier. Value should be with guid key in Attributes dictionary.
/// Machine id is equal to mac address of first network interface. If network interface in unvailable, random long will be generated.
/// </summary>
/// <returns>Machine uuid</returns>
private string GenerateMachineId()
{
if (SystemInfo.deviceUniqueIdentifier != SystemInfo.unsupportedIdentifier)
{
return(SystemInfo.deviceUniqueIdentifier);
}
var networkInterface =
NetworkInterface.GetAllNetworkInterfaces()
.FirstOrDefault(n => n.OperationalStatus == OperationalStatus.Up);
PhysicalAddress physicalAddr = null;
string macAddress = null;
if (networkInterface == null ||
(physicalAddr = networkInterface.GetPhysicalAddress()) == null ||
string.IsNullOrEmpty(macAddress = physicalAddr.ToString()))
{
return(Guid.NewGuid().ToString());
}
string hex = macAddress.Replace(":", string.Empty);
var value = Convert.ToInt64(hex, 16);
return(GuidExtensions.FromLong(value).ToString());
}
/// <summary>
/// Generate unique machine identifier. Value should be with guid key in Attributes dictionary.
/// Machine id is equal to mac address of first network interface. If network interface in unvailable, random long will be generated.
/// </summary>
/// <returns>Machine uuid</returns>
private static string GenerateMachineId()
{
#if !UNITY_WEBGL && !UNITY_SWITCH
// DeviceUniqueIdentifier will return "Switch" on Nintendo Switch
// try to generate random guid instead
if (SystemInfo.deviceUniqueIdentifier != SystemInfo.unsupportedIdentifier)
{
return(SystemInfo.deviceUniqueIdentifier);
}
var networkInterface =
NetworkInterface.GetAllNetworkInterfaces()
.FirstOrDefault(n => n.OperationalStatus == OperationalStatus.Up);
PhysicalAddress physicalAddr = null;
string macAddress = null;
if (networkInterface == null ||
(physicalAddr = networkInterface.GetPhysicalAddress()) == null ||
string.IsNullOrEmpty(macAddress = physicalAddr.ToString()))
{
return(Guid.NewGuid().ToString());
}
string hex = macAddress.Replace(":", string.Empty);
var value = Convert.ToInt64(hex, 16);
return(GuidExtensions.FromLong(value).ToString());
#else
return(Guid.NewGuid().ToString());
#endif
}