public Request(PacketType packetType, string nasIpAddress, ServiceType serviceType, string userName)
{
_packet = new Packet(packetType);
_packet.Attributes.Add(new IpAddressAttribute(AttributeType.NasIpAddress, nasIpAddress));
_packet.Attributes.Add(new ServiceTypeAttribute(serviceType));
_packet.Attributes.Add(new StringAttribute(AttributeType.UserName, userName));
}
/// <summary>
/// Parses data received from radius server and creates Packet.
/// </summary>
/// <param name="source">Data received from radius server</param>
/// <returns>Radius packet</returns>
//TODO: Implement check of Request Autheticator in packet.
public static Packet Parse(byte[] source)
{
Packet result = null;
var offset = 0;
if (source.Length < MinPacketLength)
return null;
var code = source[offset];
offset += PacketCodeLength;
foreach (var value in Enum.GetValues(typeof(PacketType)).Cast<int>().Where(value => value == code))
result = new Packet((PacketType)value);
if (result == null)
result = new Packet();
result._id = source[offset];
offset += IdentifierLength + PacketLengthLength;
result._requestAuthenticator = new byte[RequestAuthenticatorLength];
Array.Copy(source, offset, result._requestAuthenticator, 0, RequestAuthenticatorLength);
offset += RequestAuthenticatorLength;
while (offset + 1 < source.Length)
{
var attributeLength = source[offset + 1];
if (attributeLength < 3)
break;
var attribyteArray = new byte[attributeLength];
Array.Copy(source, offset, attribyteArray, 0, attributeLength);
var attribute = Attribute.Parse(attribyteArray);
if (attribute != null)
result._attributes.Add(attribute);
offset += attributeLength;
}
return result;
}
