/// <summary>
/// Returns adapter's name, as visible to user in Windows Control Panel.
/// </summary>
/// <param name="adapterIndex"></param>
/// <returns></returns>
public string GetName(int adapterIndex)
{
OSVERSIONINFO versionInfo = OSVERSIONINFO.GetVersion();
#pragma warning disable 612,618
return(Ndisapi.ConvertAdapterName(
m_szAdapterNameList,
adapterIndex * 256,
(uint)versionInfo.dwPlatformId,
(uint)versionInfo.dwMajorVersion));
#pragma warning restore 612,618
}
private TcpFilter()
{
driverPtr = Ndisapi.OpenFilterDriver();
adapters = new TCP_AdapterList();
needToStop = false;
GCHandle.Alloc(adapters);
if ((Ndisapi.IsDriverLoaded(driverPtr)))
{
ready = Ndisapi.GetTcpipBoundAdaptersInfo(driverPtr, ref adapters);
}
threadReadPacket = new Thread(doReadPacket);
threadEvents = new Thread(doEvents);
}
protected virtual void Dispose(bool disposing)
{
if (disposed)
{
return;
}
if (disposing)
{
needToStop = true;
try
{
if (threadReadPacket != null)
{
if (threadReadPacket.IsAlive)
{
threadReadPacket.Join();
}
}
}
finally
{
Marshal.FreeHGlobal(bufferPtr);
Ndisapi.CloseFilterDriver(driverPtr);
}
try
{
if (threadEvents != null)
{
if (threadEvents.IsAlive)
{
threadEvents.Join();
}
}
}
catch { }
}
disposed = true;
}
private void doReadPacket()
{
while (true)
{
if (needToStop)
{
return;
}
if (Ndisapi.ReadPacket(driverPtr, ref request))
{
buffer = (INTERMEDIATE_BUFFER)Marshal.PtrToStructure(bufferPtr, typeof(INTERMEDIATE_BUFFER));
lock (packets)
{
packets.Enqueue(buffer.m_IBuffer.Clone() as byte[]);
}
//Тут нужен мульти лок
//captureDevice_OnPacketArrival(buffer);
}
else
{
System.Threading.Thread.Sleep(16);
}
}
}
public bool startASync(int deviceNumber)
{
if (!ready)
{
return(false);
}
try
{
ADAPTER_MODE mode = new ADAPTER_MODE
{
dwFlags = Ndisapi.MSTCP_FLAG_SENT_LISTEN | Ndisapi.MSTCP_FLAG_RECV_LISTEN,
hAdapterHandle = adapters.m_nAdapterHandle[deviceNumber]
};
Ndisapi.SetAdapterMode(driverPtr, ref mode);
if (host != null)
{
IP_ADDRESS_V4 serverIp = new IP_ADDRESS_V4()
{
m_AddressType = Ndisapi.IP_SUBNET_V4_TYPE,
m_IpSubnet = new IP_SUBNET_V4
{
m_Ip = BitConverter.ToUInt32(IPAddress.Parse(host).GetAddressBytes(), 0),
m_IpMask = 0xFFFFFFFF
}
};
STATIC_FILTER_TABLE filtersTable = new STATIC_FILTER_TABLE();
filtersTable.m_StaticFilters = new STATIC_FILTER[256];
filtersTable.m_TableSize = 3;
filtersTable.m_StaticFilters[0].m_Adapter = 0; // applied to all adapters
filtersTable.m_StaticFilters[0].m_ValidFields = Ndisapi.NETWORK_LAYER_VALID;
filtersTable.m_StaticFilters[0].m_FilterAction = Ndisapi.FILTER_PACKET_REDIRECT;
filtersTable.m_StaticFilters[0].m_dwDirectionFlags = Ndisapi.PACKET_FLAG_ON_SEND;
filtersTable.m_StaticFilters[0].m_NetworkFilter.m_dwUnionSelector = Ndisapi.IPV4;
filtersTable.m_StaticFilters[0].m_NetworkFilter.m_IPv4.m_ValidFields = Ndisapi.IP_V4_FILTER_DEST_ADDRESS;
filtersTable.m_StaticFilters[0].m_NetworkFilter.m_IPv4.m_DestAddress = serverIp;
filtersTable.m_StaticFilters[1].m_Adapter = 0; // applied to all adapters
filtersTable.m_StaticFilters[1].m_ValidFields = Ndisapi.NETWORK_LAYER_VALID;
filtersTable.m_StaticFilters[1].m_FilterAction = Ndisapi.FILTER_PACKET_REDIRECT;
filtersTable.m_StaticFilters[1].m_dwDirectionFlags = Ndisapi.PACKET_FLAG_ON_RECEIVE;
filtersTable.m_StaticFilters[1].m_NetworkFilter.m_dwUnionSelector = Ndisapi.IPV4;
filtersTable.m_StaticFilters[1].m_NetworkFilter.m_IPv4.m_ValidFields = Ndisapi.IP_V4_FILTER_SRC_ADDRESS;
filtersTable.m_StaticFilters[1].m_NetworkFilter.m_IPv4.m_SrcAddress = serverIp;
filtersTable.m_StaticFilters[2].m_Adapter = 0; // applied to all adapters
filtersTable.m_StaticFilters[2].m_ValidFields = 0;
filtersTable.m_StaticFilters[2].m_FilterAction = Ndisapi.FILTER_PACKET_PASS;
filtersTable.m_StaticFilters[2].m_dwDirectionFlags = Ndisapi.PACKET_FLAG_ON_RECEIVE | Ndisapi.PACKET_FLAG_ON_SEND;
Ndisapi.SetPacketFilterTable(driverPtr, ref filtersTable);
}
buffer = new INTERMEDIATE_BUFFER();
bufferPtr = Marshal.AllocHGlobal(Marshal.SizeOf(buffer));
Win32Api.ZeroMemory(bufferPtr, Marshal.SizeOf(buffer));
request = new ETH_REQUEST
{
hAdapterHandle = adapters.m_nAdapterHandle[deviceNumber],
EthPacket = { Buffer = bufferPtr }
};
threadReadPacket.Start();
threadEvents.Start();
ready = false;
return(true);
}
catch { return(false); }
}
