Native Tunnel

This module provides general purpose functionality for tunneling connections via an intermediary SSH proxy.

Clients connect to a provided local port and get traffic forwarded to/from the target host via an SSH proxy.

class pssh.clients.native.tunnel.LocalForwarder

Thread runner for a group of local port forwarding proxies.

Starts servers in their own gevent hub via thread run target.

Use enqueue to create new servers and get port to connect to via out_q once a target has been put into the input queue.

SSHClient is the client for the SSH host that will be proxying.

cleanup_server(client)

The purpose of this function is for a proxied client to notify the LocalForwarder that it is shutting down and its corresponding server can also be shut down.

enqueue(client, host, port)

Add target host:port to tunnel via client to queue.

Parameters:
run()

Thread runner ensures a non main hub has been created for all subsequent greenlets and waits for (client, host, port) tuples to be put into self.in_q.

A server is created once something is in the queue and the port to connect to is put into self.out_q.

shutdown()

Stop all tunnel servers.

class pssh.clients.native.tunnel.TunnelServer(client, host, port, bind_address='127.0.0.1', num_retries=3)

Local port forwarding server for tunneling connections from remote SSH server.

Accepts connections on an available bind_address port once started and tunnels data to/from remote SSH host for each connection.

property listen_port