I'm trying to make a simple console app client (starter.exe) on c# .NET Framework 4.6 to make a WireGuard protocol based connection using Wireguard source code.
What is done:
- Downloaded wireguard source code from here: git://git.zx2c4.com/wireguard-windows
- Successfuly built Tunnel.dll in ..\embeddable-dll-service\amd64\tunnel.dll via build.bat
- Created a project in Visual Studio 2015.using the c# code from ..\embeddable-dll-service\csharp
Starting from here some strange thing are happenning:
- if launching starter.exe \service <path to *.conf> I receive the error
Service run error: The service process could not connect to the service controller.
- if launching starter.exe without parameters everything works fine until I remove the if{} block:
Unhandled Exception: System.ComponentModel.Win32Exception: The service did not respond to the start or control request in a timely fashion
at WireGuardTunnel.Service.Add(String configFile) in D:\Depository\BitBucket\WireGuard_Tunnel_Repository\WireGuardTunnel_proj\Launcher\Service.cs:line 69 at WireGuardTunnel.Program.Main(String[] args) in D:\Depository\BitBucket\WireGuard_Tunnel_Repository\WireGuardTunnel_proj\Launcher\Program.cs:line 83
That means even if the code in if{} block is not executed it influencese somehow the application behaviour.
- Next, as I want to make my app work with parameters I solved the issue by removing return afer Service.Run and passing args[1] to Service.Add(args[1]). It works OK, but I have an extra log line (the first one due to Service.Run perpetual error described above) in the log:
Service run error: The service process could not connect to the service controller.
235660: [TUN] [chicago4] Watching network interfaces
245661: [TUN] [chicago4] Resolving DNS names
245661: [TUN] [chicago4] Creating Wintun interface
225660: [TUN] [chicago4] Starting WireGuard/0.3.1 (Windows 6.1.7601; amd64)
So finally the questions:
- Why Service.Run(confFile) does not work
- Why Service.Run(confFile) influences the Service.Add(confFile)
- Why if{} block is executed when I launch starte.exe with no parameters
The original Program.cs without modification:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net.Sockets;
using System.Diagnostics;
using System.Threading;
using System.Threading.Tasks;
using System.IO;
using System.Runtime.InteropServices;
namespace Tunnel
{
class Program
{
[DllImport("kernel32.dll")]
private static extern bool SetConsoleCtrlHandler(SetConsoleCtrlEventHandler handler, bool add);
private delegate bool SetConsoleCtrlEventHandler(UInt32 signal);
public static void Main(string[] args)
{
string baseDirectory = Path.GetDirectoryName(Process.GetCurrentProcess().MainModule.FileName);
string configFile = Path.Combine(baseDirectory, "demobox.conf");
string logFile = Path.Combine(baseDirectory, "log.bin");
if (args.Length == 2 && args[0] == "/service")
{
configFile = args[1];
Service.Run(configFile);
return;
}
try { File.Delete(logFile); } catch { }
Ringlogger log = new Ringlogger(logFile, "GUI");
var logPrintingThread = new Thread(() =>
{
var cursor = Ringlogger.CursorAll;
while (Thread.CurrentThread.IsAlive)
{
var lines = log.FollowFromCursor(ref cursor);
foreach (var line in lines)
Console.WriteLine(line);
Thread.Sleep(300);
}
});
logPrintingThread.Start();
SetConsoleCtrlHandler(delegate
{
Service.Remove(configFile);
Environment.Exit(0);
return true;
}, true);
try
{
Service.Add(configFile);
logPrintingThread.Join();
}
finally
{
Service.Remove(configFile);
}
}
}
}
