internal static Owner GetOwningModuleTCP6(MIB_TCP6ROW_OWNER_MODULE row)
{
Owner ret = null;
//if (ownerCache.TryGetValue(row, out ret))
//{
// return ret;
//}
IntPtr buffer = IntPtr.Zero;
try
{
uint buffSize = 0;
var retn = GetOwnerModuleFromTcp6Entry(ref row, TCPIP_OWNER_MODULE_INFO_CLASS.TCPIP_OWNER_MODULE_INFO_BASIC, IntPtr.Zero, ref buffSize);
if ((retn != NO_ERROR) && (retn != ERROR_INSUFFICIENT_BUFFER))
{
//Cannot get owning module for this connection
LogHelper.Info("Unable to get the connection owner.");
return(ret);
}
if (buffSize == 0)
{
//No buffer? Probably means we can't retrieve any information about this connection; skip it
LogHelper.Info("Unable to get the connection owner.");
return(ret);
}
buffer = Marshal.AllocHGlobal((int)buffSize);
//GetOwnerModuleFromTcp6Entry needs the fields of TCPIP_OWNER_MODULE_INFO_BASIC to be NULL
ZeroMemory(buffer, buffSize);
var resp = GetOwnerModuleFromTcp6Entry(ref row, TCPIP_OWNER_MODULE_INFO_CLASS.TCPIP_OWNER_MODULE_INFO_BASIC, buffer, ref buffSize);
if (resp == 0)
{
ret = new Owner((TCPIP_OWNER_MODULE_BASIC_INFO)Marshal.PtrToStructure(buffer, typeof(TCPIP_OWNER_MODULE_BASIC_INFO)));
}
else if (resp != ERROR_NOT_FOUND) // Ignore closed connections
{
LogHelper.Error("Unable to get the connection owner.", new Win32Exception((int)resp));
}
//ownerCache.Add(row, ret);
return(ret);
}
finally
{
if (buffer != IntPtr.Zero)
{
Marshal.FreeHGlobal(buffer);
}
}
}
public static TCP_ESTATS_DATA_ROD_v0 GetTCPStatistics(MIB_TCP6ROW_OWNER_MODULE conn)
{
IntPtr rw = IntPtr.Zero;
IntPtr rod = IntPtr.Zero;
try
{
var row = new MIB_TCP6ROW()
{
_localAddress = conn._localAddress, _remoteAddress = conn._remoteAddress, _localPort = conn._localPort, _remotePort = conn._remotePort, State = conn._state, LocalScopeId = conn.LocalScopeId, RemoteScopeId = conn.RemoteScopeId
};
var rwS = Marshal.SizeOf(typeof(TCP_ESTATS_DATA_RW_v0));
rw = Marshal.AllocHGlobal(rwS);
var rodS = Marshal.SizeOf(typeof(TCP_ESTATS_DATA_ROD_v0));
rod = Marshal.AllocHGlobal(rodS);
var resp = GetPerTcp6ConnectionEStats(ref row, TCP_ESTATS_TYPE.TcpConnectionEstatsData, rw, 0, (uint)rwS, IntPtr.Zero, 0, 0, rod, 0, (uint)rodS);
if (resp != NO_ERROR)
{
LogHelper.Error("Unable to get the connection statistics.", new Win32Exception((int)resp));
}
var parsedRW = (TCP_ESTATS_DATA_RW_v0)Marshal.PtrToStructure(rw, typeof(TCP_ESTATS_DATA_RW_v0));
var parsedROD = (TCP_ESTATS_DATA_ROD_v0)Marshal.PtrToStructure(rod, typeof(TCP_ESTATS_DATA_ROD_v0));
return(parsedROD);
}
finally
{
if (rw != IntPtr.Zero)
{
Marshal.FreeHGlobal(rw);
}
if (rod != IntPtr.Zero)
{
Marshal.FreeHGlobal(rod);
}
}
}
public static extern uint GetOwnerModuleFromTcp6Entry(ref MIB_TCP6ROW_OWNER_MODULE pTcpEntry, TCPIP_OWNER_MODULE_INFO_CLASS Class, IntPtr Buffer, ref uint pdwSize);
public static extern ErrorCode GetOwnerModuleFromTcp6Entry(ref MIB_TCP6ROW_OWNER_MODULE pTcpEntry, TCPIP_OWNER_MODULE_INFO_CLASS @class, IntPtr buffer, ref int pdwSize);