void Send(byte flg, byte[] data)
{
var sendPacket = new SendPacket(_log, _recvPacket, _ident++, _squence, _ack, flg, data);
WinPcap.Send(sendPacket.Buf);
Log(string.Format("Send {0} Len={1} {2}", Util.Flg2Str(flg), data.Length, Encoding.ASCII.GetString(data)));
_squence += (uint)data.Length;
}
public List <Adapter> GetAdapterList()
{
var ar = new List <Adapter>();
foreach (var a in WinPcap.GetDeviceList())
{
ar.Add(new Adapter(a.description, a.name));
//TODO IPアドレスを取得
}
var ms = new ManagementObjectSearcher("select * from Win32_NetworkAdapterConfiguration");
foreach (var m in ms.Get())
{
foreach (var a in ar)
{
if (a.Name.IndexOf((string)(m["SettingID"])) != -1)
{
if (m["IPAddress"] != null)
{
foreach (var s in (string[])(m["IPAddress"]))
{
if (s.IndexOf(":") == -1)//IPv6排除
{
a.SetIp(s);
}
}
}
if (m["MACAddress"] != null)
{
a.SetMac((string)(m["MACAddress"]));
}
break;
}
}
}
return(ar);
}
public void Start(string name, bool promiscuous)
{
WinPcap.Start(name, promiscuous);
}
public void Dispose()
{
WinPcap.OnRecv -= OnRecv;
WinPcap.Stop();
}
void capture_OnCapture(RecvPacket recvPacket)
{
lock (this) {
//************************************************************
//ARPパケット処理
//************************************************************
if (_arpReplay) //ARP応答処理
{
if (recvPacket.Type == PType.ARP)
{
if (recvPacket.arpHeader.code == 0x0100) //要求
{
var ip = Util.Ip2Str(recvPacket.arpHeader.dstIp);
foreach (var a in _arpReplyList)
{
if (ip == a)
{
var arpReplyPacket = new ArpReplyPacket(_log, recvPacket, _myMac);
WinPcap.Send(arpReplyPacket.Buf);
_log.Set(string.Format("ARP Replay {0}", Util.Ip2Str(recvPacket.arpHeader.dstIp)));
return;
}
}
}
}
}
//************************************************************
//TCPパケット処理
//************************************************************
//宛先MAC確認(Etherヘッダ)
var mac = Util.Mac2Str(recvPacket.Mac[(int)Sd.Dst]);
if (mac.ToUpper() != Util.Mac2Str(_myMac))
{
if (mac.ToUpper() != Adapter.Mac.ToUpper())
{
return;
}
}
//プロトコル確認(IPヘッダ)
if (recvPacket.ipHeader.protocol != 0x06)
{
return;
}
//ポート番号確認(TCPヘッダ)
if (recvPacket.Port[(int)Sd.Dst] != _port)
{
return;
}
if (recvPacket.Flg == 0x02) //SYNパケット到着
//新しいセッションの開始
{
_ar.Add(new Session(recvPacket, _log));
}
else //それ以外のパケット
//当該セッションに追加
{
for (int i = 0; i < _ar.Count; i++)
{
if (_ar[i].Append(recvPacket))
{
break;
}
}
}
//終了したセッションの清掃
for (int i = _ar.Count - 1; i >= 0; i--)
{
if (!_ar[i].Life)
{
_log.Set(string.Format("ar.RemoteAt(0)", i));
_ar.RemoveAt(i);
}
}
}
}