C# UDP 代理/管道 [英] C# UDP Proxy / Pipe
问题描述
任何 C# 或 VB.NET 中的示例设计代码?
Any example design code in C# or VB.NET ?
在 .NET 中寻找 UDP 管道示例
Looking for a UDP Pipe example in .NET
我下载了简单的 UDP 代理/管道 0.4.1作者:路易吉·奥列马
I downloaded Simple UDP proxy/pipe 0.4.1 by Luigi Auriemma
在 C++ 中是什么......
Which is in C++..
它工作得很好..但我想在.NET中自己实现..所以我可以直接嗅探数据包.
it works perfectly.. but I want to make my own implemention in .NET.. so I can sniff packets directly.
推荐答案
如果有人想了解我如何修复它，这里是解决方案.请注意，如果您偶然发现，这可能是所有 google 上唯一的 UDP 代理基于此.. 用 C# 编码.. 使用在线 .NET 转换器轻松移植到 VB.NET
Fixed it here is the solution if anyone wants to learn how I fixed it.. Please note this is probably the only UDP Proxy on all of google if you stumbled upon this.. that is coded in C#.. easily ported to VB.NET with online .NET converter
很高兴这段代码可以正常工作；)
Be happy this code works ;)
当然它效率不高，因为它不使用事件.. 比如 ReceiveAsync/EndReceive.
Sure it's not efficient because it doesn't use events.. like ReceiveAsync/EndReceive.
不使用 Aysnchronize 事件的唯一缺点.. 是您在工作代码下方看到.. 将不得不陷入无限循环.. 它会消耗您的 CPU 周期.. 使用 Thread.Sleep(10)..(不要设置为高，否则会有 udp 延迟)
Only downfall to not using Aysnchronize events.. is that you see below the working code.. will have to be stuck in a infinite loop.. and it will burn your CPU cycles.. easily fixed with a Thread.Sleep(10).. (don't set to high or you will have udp lag)
using System;
using System.Collections.Generic;
using System.Text;
using System.Net.Sockets;
using System.Net;
namespace UdpProxy
{
class Program
{
public static IPEndPoint m_listenEp = null;
public static EndPoint m_connectedClientEp = null;
public static IPEndPoint m_sendEp = null;
public static Socket m_UdpListenSocket = null;
public static Socket m_UdpSendSocket = null;
static void Main(string[] args)
{
// Creates Listener UDP Server
m_listenEp = new IPEndPoint(IPAddress.Any, 7900);
m_UdpListenSocket = new Socket(m_listenEp.Address.AddressFamily, SocketType.Dgram, ProtocolType.Udp);
m_UdpListenSocket.Bind(m_listenEp);
//Connect to zone IP EndPoint
m_sendEp = new System.Net.IPEndPoint(IPAddress.Parse("REMOTE_IP_GOES_HERE"), 7900);
m_connectedClientEp = new System.Net.IPEndPoint(IPAddress.Any, 7900);
byte[] data = new byte[1024];
while (true)
{
if (m_UdpListenSocket.Available > 0)
{
int size = m_UdpListenSocket.ReceiveFrom(data, ref m_connectedClientEp); //client to listener
if (m_UdpSendSocket == null)
{
// Connect to UDP Game Server.
m_UdpSendSocket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
}
m_UdpSendSocket.SendTo(data, size, SocketFlags.None, m_sendEp); //listener to server.
}
if (m_UdpSendSocket != null && m_UdpSendSocket.Available > 0)
{
int size = m_UdpSendSocket.Receive(data); //server to client.
m_UdpListenSocket.SendTo(data, size, SocketFlags.None, m_connectedClientEp); //listner
}
}
// Wait for any key to terminate application
Console.ReadKey();
}
}
}
当我开始一个新的 UDP 代理项目时，我总是回顾这个答案，上面的代码在某些 UDP 服务器上存在问题，它失去了连接，(在无连接协议上)是的，我不知道它是怎么发生的但我使用 UDPClient 而不是 Sockets 修复了它
这是一个不同的变体TCP 或 UDP 重定向器/UDP 代理/UDP 管道/TCP 代理/TCP 管道
Here is a different variant of the TCP or UDP Redirector / UDP Proxy / UDP Pipe / TCP Proxy / TCP Pipe
我创建了许多不同模型的 UDP 代理连接弹跳器，它们似乎都使用标准的 Sockets 类断开连接，但使用 UDPClient 类这个问题完全消失了.
I created many different models of UDP Proxy connection bouncers and they all seem to loose connection using the standard Sockets class, but using UDPClient classes this problem completely went away.
UDP 代理只有 25 行代码，但功能和稳定性却超乎想象
The UDP Proxy is only 25 lines of code but the power and stability is off the charts
以下是如何在 TCP 和 UDP 中执行此操作的示例
Below is examples how to do it in both TCP and UDP
C#代码如下
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Diagnostics;
using System.Net;
using System.Threading;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
string Address= "*PUT IP ADDRESS HERE WHERE UDP SERVER IS*";
int UDPPort = *PUT UDP SERVER PORT HERE*;
UdpRedirect _UdpRedirect = new UdpRedirect() { _address = Address, _Port = UDPPort};
Thread _Thread = new Thread(_UdpRedirect.Connect);
_Thread.Name = "UDP";
_Thread.Start();
int TCPPort = *PUT TCP PORT HERE FOR TCP PROXY*;
TcpRedirect _TcpRedirect = new TcpRedirect(Address, TCPPort);
}
}
class UdpRedirect
{
public string _address;
public int _Port;
public UdpRedirect()
{
}
public void Connect()
{
UdpClient _UdpClient = new UdpClient(_Port);
int? LocalPort = null;
while (true)
{
IPEndPoint _IPEndPoint = null;
byte[] _bytes = _UdpClient.Receive(ref _IPEndPoint);
if (LocalPort == null) LocalPort = _IPEndPoint.Port;
bool Local = IPAddress.IsLoopback(_IPEndPoint.Address);
string AddressToSend = null;
int PortToSend = 0;
if (Local)
{
AddressToSend = _address;
PortToSend = _Port;
}
else
{
AddressToSend = "127.0.0.1";
PortToSend = LocalPort.Value;
}
_UdpClient.Send(_bytes, _bytes.Length, AddressToSend, PortToSend);
}
}
}
class TcpRedirect
{
public TcpRedirect(string _address, int _Port)
{
TcpListener _TcpListener = new TcpListener(IPAddress.Any, _Port);
_TcpListener.Start();
int i = 0;
while (true)
{
i++;
TcpClient _LocalSocket = _TcpListener.AcceptTcpClient();
NetworkStream _NetworkStreamLocal = _LocalSocket.GetStream();
TcpClient _RemoteSocket = new TcpClient(_address, _Port);
NetworkStream _NetworkStreamRemote = _RemoteSocket.GetStream();
Console.WriteLine("
<<<<<<<<<connected>>>>>>>>>>>>>");
Client _RemoteClient = new Client("remote" + i)
{
_SendingNetworkStream = _NetworkStreamLocal,
_ListenNetworkStream = _NetworkStreamRemote,
_ListenSocket = _RemoteSocket
};
Client _LocalClient = new Client("local" + i)
{
_SendingNetworkStream = _NetworkStreamRemote,
_ListenNetworkStream = _NetworkStreamLocal,
_ListenSocket = _LocalSocket
};
}
}
public class Client
{
public TcpClient _ListenSocket;
public NetworkStream _SendingNetworkStream;
public NetworkStream _ListenNetworkStream;
Thread _Thread;
public Client(string Name)
{
_Thread = new Thread(new ThreadStart(ThreadStartHander));
_Thread.Name = Name;
_Thread.Start();
}
public void ThreadStartHander()
{
Byte[] data = new byte[99999];
while (true)
{
if (_ListenSocket.Available > 0)
{
int _bytesReaded = _ListenNetworkStream.Read(data, 0, _ListenSocket.Available);
_SendingNetworkStream.Write(data, 0, _bytesReaded);
Console.WriteLine("(((((((" + _bytesReaded + "))))))))))" + _Thread.Name + "
" + ASCIIEncoding.ASCII.GetString(data, 0, _bytesReaded).Replace((char)7, '?'));
}
Thread.Sleep(10);
}
}
}
}
}
VB.NET下面的代码
Imports System.Collections.Generic
Imports System.Linq
Imports System.Text
Imports System.Net.Sockets
Imports System.Diagnostics
Imports System.Net
Imports System.Threading
Namespace ConsoleApplication1
Class Program
Private Shared Sub Main(args As String())
Dim Address As String = "*PUT IP ADDRESS HERE WHERE UDP SERVER IS*"
Dim UDPPort As Integer = *PUT UDP SERVER PORT HERE*
Dim _UdpRedirect As New UdpRedirect() With { _
Key ._address = Address, _
Key ._Port = UDPPort _
}
Dim _Thread As New Thread(AddressOf _UdpRedirect.Connect)
_Thread.Name = "UDP"
_Thread.Start()
Dim TCPPort As Integer = *PUT TCP SERVER PORT HERE*
Dim _TcpRedirect As New TcpRedirect(Address, TCPPort)
End Sub
End Class
Class UdpRedirect
Public _address As String
Public _Port As Integer
Public Sub New()
End Sub
Public Sub Connect()
Dim _UdpClient As New UdpClient(_Port)
Dim LocalPort As System.Nullable(Of Integer) = Nothing
While True
Dim _IPEndPoint As IPEndPoint = Nothing
Dim _bytes As Byte() = _UdpClient.Receive(_IPEndPoint)
If LocalPort Is Nothing Then
LocalPort = _IPEndPoint.Port
End If
Dim Local As Boolean = IPAddress.IsLoopback(_IPEndPoint.Address)
Dim AddressToSend As String = Nothing
Dim PortToSend As Integer = 0
If Local Then
AddressToSend = _address
PortToSend = _Port
Else
AddressToSend = "127.0.0.1"
PortToSend = LocalPort.Value
End If
_UdpClient.Send(_bytes, _bytes.Length, AddressToSend, PortToSend)
End While
End Sub
End Class
Class TcpRedirect
Public Sub New(_address As String, _Port As Integer)
Dim _TcpListener As New TcpListener(IPAddress.Any, _Port)
_TcpListener.Start()
Dim i As Integer = 0
While True
i += 1
Dim _LocalSocket As TcpClient = _TcpListener.AcceptTcpClient()
Dim _NetworkStreamLocal As NetworkStream = _LocalSocket.GetStream()
Dim _RemoteSocket As New TcpClient(_address, _Port)
Dim _NetworkStreamRemote As NetworkStream = _RemoteSocket.GetStream()
Console.WriteLine(vbLf & "<<<<<<<<<connected>>>>>>>>>>>>>")
Dim _RemoteClient As New Client("remote" + i) With { _
Key ._SendingNetworkStream = _NetworkStreamLocal, _
Key ._ListenNetworkStream = _NetworkStreamRemote, _
Key ._ListenSocket = _RemoteSocket _
}
Dim _LocalClient As New Client("local" + i) With { _
Key ._SendingNetworkStream = _NetworkStreamRemote, _
Key ._ListenNetworkStream = _NetworkStreamLocal, _
Key ._ListenSocket = _LocalSocket _
}
End While
End Sub
Public Class Client
Public _ListenSocket As TcpClient
Public _SendingNetworkStream As NetworkStream
Public _ListenNetworkStream As NetworkStream
Private _Thread As Thread
Public Sub New(Name As String)
_Thread = New Thread(New ThreadStart(AddressOf ThreadStartHander))
_Thread.Name = Name
_Thread.Start()
End Sub
Public Sub ThreadStartHander()
Dim data As [Byte]() = New Byte(99998) {}
While True
If _ListenSocket.Available > 0 Then
Dim _bytesReaded As Integer = _ListenNetworkStream.Read(data, 0, _ListenSocket.Available)
_SendingNetworkStream.Write(data, 0, _bytesReaded)
Console.WriteLine("(((((((" + _bytesReaded + "))))))))))" + _Thread.Name + vbLf + ASCIIEncoding.ASCII.GetString(data, 0, _bytesReaded).Replace(CChar(7), "?"C))
End If
Thread.Sleep(10)
End While
End Sub
End Class
End Class
End Namespace
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