public static List <MibTcpRowOwnerId> GetTcpConnections(IpVersion ipVersion, TcpTableClass tableClass)
{
int tableSize = 0;
GetExtendedTcpTable(IntPtr.Zero, ref tableSize, true, ipVersion, tableClass);
var tcpTablePtr = Marshal.AllocHGlobal(tableSize);
var tcpConnections = new List <MibTcpRowOwnerId>();
try
{
if (GetExtendedTcpTable(tcpTablePtr, ref tableSize, true, ipVersion, tableClass) != 0)
{
return(tcpConnections);
}
var table = Marshal.PtrToStructure <MibTcpTableOwnerPid>(tcpTablePtr);
var rowPtr = IntPtr.Add(tcpTablePtr, Marshal.SizeOf(table.TableCount));
for (var i = 0; i < table.TableCount; i++)
{
var tcpRow = Marshal.PtrToStructure <MibTcpRowOwnerId>(rowPtr);
tcpConnections.Add(tcpRow);
rowPtr = IntPtr.Add(rowPtr, Marshal.SizeOf(tcpRow));
}
}
finally
{
Marshal.FreeHGlobal(tcpTablePtr);
}
return(tcpConnections);
}
public static extern uint GetExtendedTcpTable(
IntPtr tcpTable,
ref int outBufLen,
bool sort,
IpVersion ipVersion,
TcpTableClass tableClass,
uint reserved = 0);
private static extern int GetExtendedTcpTable(
byte[] pTcpTable,
out int dwOutBufLen,
bool sort,
int ipVersion,
TcpTableClass tblClass,
int reserved);
private static extern uint GetExtendedTcpTable(IntPtr pTcpTable, ref int dwOutBufLen, bool sort, int ipVersion, TcpTableClass tblClass, uint reserved = 0);
private static extern uint GetExtendedTcpTable(IntPtr pTcpTable, ref int pdwSize, bool bOrder,
int ulAf, TcpTableClass tableClass, uint reserved = 0);
private static extern uint GetExtendedTcpTable(IntPtr pTcpTable, ref int dwOutBufLen, bool sort, int ipVersion,
TcpTableClass tblClass, uint reserved = 0);
internal static extern uint GetExtendedTcpTable(SafeLocalFree pTcpTable, ref uint dwOutBufLen, bool order, uint IPVersion, TcpTableClass tableClass, uint reserved);
internal extern static uint GetExtendedTcpTable(SafeLocalFree pTcpTable, ref uint dwOutBufLen, bool order,
uint IPVersion, TcpTableClass tableClass, uint reserved);
internal extern static uint GetExtendedTcpTable(SafeLocalAllocHandle pTcpTable, ref uint dwOutBufLen, bool order,
uint IPVersion, TcpTableClass tableClass, uint reserved);
internal static unsafe partial uint GetExtendedTcpTable(IntPtr pTcpTable, uint *dwOutBufLen, [MarshalAs(UnmanagedType.Bool)] bool order,
uint IPVersion, TcpTableClass tableClass, uint reserved);
internal static unsafe partial uint GetExtendedTcpTable(IntPtr pTcpTable, uint *dwOutBufLen, bool order,
uint IPVersion, TcpTableClass tableClass, uint reserved);
public static extern int GetExtendedTcpTable(IntPtr pTcpTable, ref dword pdwSize, bool bOrder, AfInet ulAf, TcpTableClass tcpTableClass, dword reserved = 0);
public static extern int GetExtendedTcpTable(byte[] tcpTable, out int size, bool order, uint ipVersion, TcpTableClass tableClass, uint reserved);