CaptureEventArgs.Packet 缺少提取方法

Question

因此，我正在尝试使用 Sharppcap 嗅探数据包，并密切关注 codeproject 上的 Sharppcap 开发人员教程，我尝试在 CaptureEventArgs.Packet 上调用 extract() 方法。似乎 extract() 方法没有实现。代码：

using PacketDotNet;
using SharpPcap;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading.Tasks;

namespace SnifferGUI
{
    class ProjectBehaviour
    {
        public void Initsniff()
        {
            CaptureDeviceList captureDeviceList = CaptureDeviceList.Instance;

            if(captureDeviceList.Count < 1)
            {
                throw new InsufficientExecutionStackException();
            }
            ICaptureDevice device = captureDeviceList[1]; //todo
            device.OnPacketArrival += new SharpPcap.PacketArrivalEventHandler(device_OnPacketArrival);

            device.Open(DeviceMode.Promiscuous, 0);

            device.StartCapture();
        }

        private void device_OnPacketArrival(object sender, CaptureEventArgs e)
        {
            var tcp = (TcpPacket)e.Packet.Extract(typeof(TcpPacket)); //According to the tutorial, this is a valid expression.
        }
    }

}

我的目标是将收到的数据包解析为 TcpPacket 以供进一步处理。我想存储和显示 source/destination ip 和端口、时间戳等。那么，我是不是漏掉了什么？

Answer 1

所以，是的...联系开发人员 via issue on the official github repository 后，我们得出的结论是该教程已过时。此处提供了最新示例：click!

CaptureEventArgs.Packet 缺少提取方法

Missing extract method for CaptureEventArgs.Packet

c#

networking

sniffing

sharppcap