private void Initialize(MemoryStream ms, OfpHeader header)
{
if (!_versionChecked)
{
_version = header.Version;
_versionChecked = true;
var reply = new OfpSwitchFeaturesRequest();
_log.Debug("Request for features");
//Console.WriteLine("Request for features");
Write(reply.ToByteArray());
}
else if (header.Type == OfpType.OFPT_FEATURES_REPLY)
{
OfpSwitchFeatures features = new OfpSwitchFeatures(ms, header);
_mac = features.DatapathId.GetPhysicalAddress();
_log.Info($"A switch connected - MAC={_mac}");
//Console.WriteLine($"A switch connected - MAC={_mac}");
foreach (var ofpPhyPort in features.Ports)
{
//Console.WriteLine($"\tPortNum={ofpPhyPort.PortNo} \tPortName={ofpPhyPort.Name} \tPortState={ofpPhyPort.State.ToString()}");
}
SwitchFeatures = features;
_featureChecked = true;
var reply = new OfpSwitchConfig(true);
reply.Flags = OfpConfigFlags.OFPC_FRAG_NORMAL;
reply.MissSendLen = 65535;
Write(reply.ToByteArray());
var reply2 = new OfpSwitchConfigRequest();
Write(reply2.ToByteArray());
}
else if (header.Type == OfpType.OFPT_GET_CONFIG_REPLY)
{
OfpSwitchConfig config = new OfpSwitchConfig(ms, header);
_log.Info($"[{_mac}] Config: Flag={config.Flags} MissSendLen={config.MissSendLen}");
//Console.WriteLine($"[{_mac}] Config: Flag={config.Flags} MissSendLen={config.MissSendLen}");
_configChecked = true;
return;
}
else if (header.Type == OfpType.OFPT_ECHO_REQUEST)
{
OfpEcho echo = new OfpEcho(ms, header);
_version = echo.Header.Version;
_versionChecked = true;
var reply = new OfpEcho(true);
reply.Data = echo.Data;
Write(reply.ToByteArray());
}
else if (header.Type == OfpType.OFPT_ERROR)
{
OfpErrorMsg error = new OfpErrorMsg(ms, header);
_log.Info($"[{_mac}] Error: type={error.Type.ToString()} code={error.GetErrorCode()}");
//Console.WriteLine($"[{_mac}] Error: type={error.Type.ToString()} code={error.GetErrorCode()}");
return;
}
else
{
return;
}
}
private void Echo(MemoryStream ms, OfpHeader header)
{
OfpEcho echo = new OfpEcho(ms, header);
if (echo.Header.Type == OfpType.OFPT_ECHO_REQUEST)
{
Write(new OfpEcho(true).ToByteArray());
}
_controller.PluginSystem.Echo(echo, this);
}
/// <summary>
/// 处理Echo
/// </summary>
/// <param name="echo"></param>
/// <param name="handler"></param>
/// <returns></returns>
public virtual bool Echo(OfpEcho echo, IConnection handler)
{
foreach (var plugin in Plugins.Values.Where(plugin => plugin.Active))
{
try
{
bool result = plugin.MessageHandler.Echo(echo, handler);
if (result)
{
break;
}
}
catch (Exception e)
{
Debug.WriteLine(e);
}
}
return(true);
}
/// <summary>
/// 处理Echo
/// </summary>
/// <param name="echo"></param>
/// <param name="handler"></param>
/// <returns></returns>
public virtual bool Echo(OfpEcho echo, IConnection handler)
{
return(false);
}
