private TimeSpan GetLeaseDuration()
{
var option = DhcpServerOptionValue.GetScopeDefaultOptionValue(this, 51);
if (option == null)
{
return(default(TimeSpan));
}
else
{
return(TimeSpan.FromSeconds(((DhcpServerOptionElementDWord)option.Values[0]).RawValue));
}
}
internal static DhcpServerDnsSettings GetScopeDnsSettings(DhcpServer server, DhcpServerIpAddress address)
{
// Flag is Option 81
try
{
var option = DhcpServerOptionValue.GetScopeDefaultOptionValue(server, address, 81);
if (option.Values.FirstOrDefault() is DhcpServerOptionElementDWord value)
{
return(new DhcpServerDnsSettings((uint)value.RawValue));
}
else
{
return(GetGlobalDnsSettings(server));
}
}
catch (DhcpServerException e) when(e.ApiErrorId == (uint)DhcpErrors.ERROR_FILE_NOT_FOUND)
{
return(GetGlobalDnsSettings(server));
}
}
internal static DhcpServerDnsSettings GetScopeDnsSettings(DhcpServerScope Scope)
{
// Flag is Option 81
try
{
var option = DhcpServerOptionValue.GetScopeDefaultOptionValue(Scope, 81);
if (option.Values.Count != 1)
{
return(GetGlobalDnsSettings(Scope.Server));
}
else
{
return(null);
}
}
catch (DhcpServerException e) when(e.ApiErrorId == (uint)DhcpErrors.ERROR_FILE_NOT_FOUND)
{
return(null);
}
}
/// <summary>
/// Retrieves the Option Value assoicated with the Option and Scope from the Default options
/// </summary>
/// <param name="OptionId">The identifier for the option value to retrieve</param>
/// <returns>A <see cref="DhcpServerOptionValue"/>.</returns>
public DhcpServerOptionValue GetOptionValue(int OptionId)
{
return(DhcpServerOptionValue.GetScopeDefaultOptionValue(this, OptionId));
}
/// <summary> /// Retrieves the Option Value associated with the Option and Scope from the Default options /// </summary> /// <param name="optionId">The identifier for the option value to retrieve</param> /// <returns>A <see cref="DhcpServerOptionValue"/>.</returns> public IDhcpServerOptionValue GetDefaultOptionValue(DhcpServerOptionIds optionId) => DhcpServerOptionValue.GetScopeDefaultOptionValue(Scope, (int)optionId);