【问题标题】:arp -a and route printarp -a 和路由打印
【发布时间】:2023-03-20 04:34:01
【问题描述】:

我需要编写一个程序来显示这些信息:

  • 网络统计
  • TCP/UDP 连接
  • 关于 IP ipconfig /all 的信息
  • arp-a
  • 路线打印

我已经拥有其中的大部分,但我对route printarp -a 有疑问。我不想使用Process.Start() 执行此命令,因为它看起来不太壮观:

Process p = new Process ();

p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
p.StartInfo.UseShellExecute = false;
p.StartInfo.FileName = "route";
p.StartInfo.Arguments = "PRINT";
p.StartInfo.RedirectStandardOutput = true;
p.StartInfo.CreateNoWindow = true;
p.StartInfo.StandardOutputEncoding = Encoding.Default;
p.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
p.Start();
TextBox1.Text = p.StandardOutput.ReadToEnd();

我想使用 foreach 循环将数据放入 ListView 或 DataGrid 列。有没有人可以帮助我?如何将这些数据放入每一列:目标、网络掩码、网关、接口、指标和永久路由?在 ARP 的情况下, Internet地址类型的物理地址?

【问题讨论】:

  • 对不起,刚刚看到我忘记了关于“arp -a”的问题。看看GetIpNetTable2 Function,相当确定这可能就是您要找的东西。虽然不确定从 C# 调用有多容易,但可能是一些更简单的 WMI 方式,但我从未看过它。

标签: c# windows networking network-programming


【解决方案1】:

非常感谢。我已经与指导和 IPv4routetable 的 WMI CODER CREATOR 一起编写了以下代码:

private void button1_Click(object sender, EventArgs e)
{
    try
    {
        ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_IP4RouteTable");
        ListViewItem buf;

        foreach (ManagementObject queryObj in searcher.Get())
        {
            string destination = queryObj["Destination"].ToString();
            string mask = queryObj["Mask"].ToString();
            string metric = queryObj["Metric1"].ToString();
            string interfaceIndex = queryObj["InterfaceIndex"].ToString();
            string nexthop = queryObj["NextHop"].ToString();
            string protocol = queryObj["Protocol"].ToString();
            string type = queryObj["Type"].ToString();
            string status;
            if (queryObj["Status"] != null)
            {
                status = queryObj["Status"].ToString();
            }
            else
            {
                status = string.Empty;
            }


            buf = new ListViewItem(new string[] { destination, mask, metric, interfaceIndex, nexthop, protocol, status, type });
            list_route.Items.Add(buf);

        }
    }
    catch (ManagementException ex)
    {
        MessageBox.Show("An error occurred while querying for WMI data: " + ex.Message);
    }
}

只是不知道在哪个类我找到关于arp-a的资料在google上找不到。如果有人知道他在问答案。如果有人有其他有用的帮助,例如 WMI Coder Creator,不胜感激。

我找到了一些信息。关于 GetIpNetTable 但我不能在 GUI 应用程序中使用此功能,将结果传递给列表视图。 : (

using System;
using System.Runtime.InteropServices;
using System.ComponentModel;
using System.Net;

namespace GetIpNetTable
{
    class Program
    {
        // The max number of physical addresses.
        const int MAXLEN_PHYSADDR = 8;

        // Define the MIB_IPNETROW structure.
        [StructLayout(LayoutKind.Sequential)]
        struct MIB_IPNETROW
        {
            [MarshalAs(UnmanagedType.U4)]
            public int dwIndex;
            [MarshalAs(UnmanagedType.U4)]
            public int dwPhysAddrLen;
            [MarshalAs(UnmanagedType.U1)]
            public byte mac0;
            [MarshalAs(UnmanagedType.U1)]
            public byte mac1;
            [MarshalAs(UnmanagedType.U1)]
            public byte mac2;
            [MarshalAs(UnmanagedType.U1)]
            public byte mac3;
            [MarshalAs(UnmanagedType.U1)]
            public byte mac4;
            [MarshalAs(UnmanagedType.U1)]
            public byte mac5;
            [MarshalAs(UnmanagedType.U1)]
            public byte mac6;
            [MarshalAs(UnmanagedType.U1)]
            public byte mac7;
            [MarshalAs(UnmanagedType.U4)]
            public int dwAddr;
            [MarshalAs(UnmanagedType.U4)]
            public int dwType;
        }

        // Declare the GetIpNetTable function.
        [DllImport("Iphlpapi.dll")]
        [Return: MarshalAs(UnmanagedType.U4)]
        static extern int GetIpNetTable(
           IntPtr pIpNetTable,
           [MarshalAs (UnmanagedType.U4)]
             pdwSize ref int,
           bool border);

        // The Insufficient buffer error.
        const int ERROR_INSUFFICIENT_BUFFER = 122;

        static void Main(string[] args)
        {
            // The number of bytes needed.
            bytesNeeded int = 0;

            // The result from the API call.
            int result = GetIpNetTable(IntPtr.Zero, ref bytesNeeded, false);

            // Call the function, expecting an Insufficient buffer.
            if (result! = ERROR_INSUFFICIENT_BUFFER)
            {
                // Throw an exception.
                throw new Win32Exception(result);
            }

            // Allocate the memory, do it in a try / finally block, to ensure code
            // That it is released.
            IntPtr buffer = IntPtr.Zero;

            // Try / finally.
            try
            {
                // Allocate the memory.
                buffer = Marshal.AllocCoTaskMem(bytesNeeded);

                // Make the call again.If it did not Succeed, then
                // Raise an error.
                result = GetIpNetTable(buffer, ref bytesNeeded, false);

                // If the result is not 0(no error), then throw an exception.
                if (result! = 0)
                {
                   // Throw an exception.
                   throw new Win32Exception(result);
                }

                // Now we have the buffer, the have to marshal it. We can read
                // The first 4 bytes to get the length of the buffer.
                int entries = Marshal.ReadInt32(buffer);

                // Increment the memory pointer by the size of the int.
                IntPtr = new IntPtr currentBuffer(buffer.ToInt64() +
                   Marshal.SizeOf(typeof(int)));

                // Allocate an array of entries.
                MIB_IPNETROW[] table = new MIB_IPNETROW[entries];

                // Cycle through the entries.
                for (int index = 0; index < entries; index ++)
                {
                    // Call PtrToStructure, getting the information structure.
                    table[index] = (MIB_IPNETROW)Marshal.PtrToStructure(new
                       IntPtr(currentBuffer.ToInt64() + (index *
                       Marshal.SizeOf(typeof(MIB_IPNETROW)))), typeof(MIB_IPNETROW));
                }

                for (int index = 0; index < entries; index + +)
                {
                    IPAddress ip = new IPAddress(table[index].DwAddr);
                    Console.Write("IP:" + ip.ToString() + "\ t \ TMAC");
                    byte b;

                    b = table[index].mac0;
                    if (b < 0x10)
                    {
                        Console.Write("0");
                    }
                    else
                    {
                        Console.Write("");
                    }
                    Console.Write(b.ToString("X"));

                    b = table[index].mac1;
                    if (b < 0x10)
                    {
                        Console.Write("-0");
                    }
                    else
                    {
                        Console.Write("-");
                    }
                    Console.Write(b.ToString("X"));

                    b = table[index].mac2;
                    if (b < 0x10)
                    {
                        Console.Write("-0");
                    }
                    else
                    {
                        Console.Write("-");
                    }
                    Console.Write(b.ToString("X"));

                    b = table[index].mac3;
                    if (b < 0x10)
                    {
                        Console.Write("-0");
                    }
                    else
                    {
                        Console.Write("-");
                    }
                    Console.Write(b.ToString("X"));

                    b = table[index].mac4;
                    if (b < 0x10)
                    {
                        Console.Write("-0");
                    }
                    else
                    {
                        Console.Write("-");
                    }
                    Console.Write(b.ToString("X"));

                    b = table[index].mac5;
                    if (b < 0x10)
                    {
                        Console.Write("-0");
                    }
                    else
                    {
                        Console.Write("-");
                    }
                    Console.Write(b.ToString("X"));
                    Console.WriteLine();
                }
            }
            finally
            {
                // Release the elephant.
                Marshal.FreeCoTaskMem(buffer);
            }
        }
    }
}

【讨论】:

  • 按预期为我工作。谢谢男人。
【解决方案2】:

我想您可能只是解析您检索到的文本以获取您想要的值并将它们放在 ListView 等中。但是,我认为有更好的方法来检索它,我认为您会能够使用 WMI 类 Win32_IP4RouteTable 获取此信息。

如果您之前没有使用过 WMI,您也许可以使用 WMI Code Creator v1.0 来帮助您开始使用(我自己没有使用过,但有时我看到其他人建议使用它)。

WMI .NET Overview 可能也很有用。

【讨论】:

  • 我不能使用 GetIPNetTable :(
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