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@chilversc
Created March 11, 2015 16:59
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SSH Tunnel with a dynamically allocated local port in C# using SSH.NET
class SshTunnel : IDisposable
{
private SshClient client;
private ForwardedPortLocal port;
private int localPort;
public SshTunnel (ConnectionInfo connectionInfo, uint remotePort)
{
try {
client = new SshClient (connectionInfo);
// using 0 for the client port to dynamically allocate it
port = new ForwardedPortLocal ("127.0.0.1", 0, "127.0.0.1", remotePort);
client.Connect ();
client.AddForwardedPort(port);
port.Start();
// HACK to get the dynamically allocated client port
var listener = (TcpListener) typeof (ForwardedPortLocal).GetField ("_listener", BindingFlags.Instance | BindingFlags.NonPublic).GetValue (port);
localPort = ((System.Net.IPEndPoint) listener.LocalEndpoint).Port;
} catch {
Dispose ();
throw;
}
}
public int LocalPort { get { return localPort; } }
public void Dispose ()
{
if (port != null)
port.Dispose ();
if (client != null)
client.Dispose ();
}
}
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