daskol / socks-proxy

Simple SOCKS4 proxy in modern C++

SOCKS4 Proxy Server

simple socks4-proxy in modern c++

Overview

SOCKS proxy is simple proxy server which implements well-known SOCKS4 protocol. It accept and multiplexes input and output streams in one thread. It supports half-closed TCP connections. Also default timeout on connection is one second.

    Client           Proxy           Server
      |                |               |
      | 1. Connect ->  |               |
      |                |               |
      |  1. Hello -->  |               |
      |                |               |
      |                | 1. Connect -> |
      |  <-- 1. Hello  |               |
      |                |               |
      |                |               |
      | 2. Data ->     |               |
      |                | 2. Data ->    |
      |                |               |
      |                |               |
      | 2. Fin ->      |               |
      |                | 2. Fin ->     |
      |                |               |
      |                | <- 2. Data    |
      | <- 2. Data     |               |
      |                |               |
      |                | <- 2. Fin     |
      | <- 2. Fin      |               |

Assembly

This implementation depends on Boost.System, Boost.Asio, Google Log and Google Tests. Make dependencoes are cmake, make and git. Google Test is included into project dependencies as git submodule. So, to get sources one should clone repo recursively.

    git clone --recursive https://github.com/daskol/socks-proxy.git

And then one could start building as follows.

    mkdir -p build/release
    cd build/release
    cmake ../.. -DCMAKE_BUILD_TYPE=Release
    make -j2

In order to install target binary to system path one should run following.

    make install

socks-proxy's Issues

Ability to update acl file without service restart

Hi @daskol fine project. Have you any plans for add ability to reload acl file without restart the service.

I imagine the simplest way to implement it is a handling on SIGHUP signal. Thank you.