private ConnectionInfo ConnectionInformation(MIB_TCPROW_OWNER_PID rawConection)
{
return(new ConnectionInfo()
{
LocalPort = rawConection.LocalPort,
LocalIP = rawConection.LocalIP,
RemotePort = rawConection.RemotePort,
RemoteIP = rawConection.RemoteIP,
Pid = rawConection.Pid,
Status = (ConnectionStatus)rawConection.state,
});
}
private MIB_TCPROW_OWNER_PID[] GetAllTcpConnections()
{
//Based on http://stackoverflow.com/questions/577433/which-pid-listens-on-a-given-port-in-c-sharp
MIB_TCPROW_OWNER_PID[] tTable;
int AF_INET = 2; // IP_v4
int bufferSize = 0;
uint ret = GetExtendedTcpTable(IntPtr.Zero, ref bufferSize, true, AF_INET, TCP_TABLE_CLASS.TCP_TABLE_OWNER_PID_ALL, 0);
if (ret != 0 && ret != 122)
{
throw new Exception("bad ret on check " + ret);
}
IntPtr buffTable = Marshal.AllocHGlobal(bufferSize);
try
{
ret = GetExtendedTcpTable(buffTable, ref bufferSize, true, AF_INET, TCP_TABLE_CLASS.TCP_TABLE_OWNER_PID_ALL, 0);
if (ret != 0)
{
throw new Exception("bad ret " + ret);
}
// get the number of entries in the table
MIB_TCPTABLE_OWNER_PID tab = (MIB_TCPTABLE_OWNER_PID)Marshal.PtrToStructure(buffTable, typeof(MIB_TCPTABLE_OWNER_PID));
IntPtr rowPtr = (IntPtr)((long)buffTable + Marshal.SizeOf(tab.dwNumEntries));
tTable = new MIB_TCPROW_OWNER_PID[tab.dwNumEntries];
for (int i = 0; i < tab.dwNumEntries; i++)
{
MIB_TCPROW_OWNER_PID tcpRow = (MIB_TCPROW_OWNER_PID)Marshal.PtrToStructure(rowPtr, typeof(MIB_TCPROW_OWNER_PID));
tTable[i] = tcpRow;
rowPtr += Marshal.SizeOf(tcpRow);
}
}
finally
{
// Free the Memory
Marshal.FreeHGlobal(buffTable);
}
return(tTable);
}
