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https://github.com/heiher/hev-socks5-tunnel

A high-performance tun2socks for Linux/Android/FreeBSD/macOS/iOS/WSL2 (IPv4/IPv6/TCP/UDP)
https://github.com/heiher/hev-socks5-tunnel

android dns freebsd high-performance ios ipv6 linux macos proxy socks5 tcp tun-device tun2socks tunnel udp

Last synced: 11 days ago
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A high-performance tun2socks for Linux/Android/FreeBSD/macOS/iOS/WSL2 (IPv4/IPv6/TCP/UDP)

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README

        

# HevSocks5Tunnel

[![status](https://github.com/heiher/hev-socks5-tunnel/actions/workflows/build.yaml/badge.svg?branch=master&event=push)](https://github.com/heiher/hev-socks5-tunnel)

A tunnel over Socks5 proxy (tun2socks) for Unix.

## Features

* IPv4/IPv6. (dual stack)
* Redirect TCP connections.
* Redirect UDP packets. (Fullcone NAT, UDP in UDP/TCP)
* Linux/Android/FreeBSD/macOS/iOS/WSL2.

## Benchmarks

See [here](https://github.com/heiher/hev-socks5-tunnel/wiki/Benchmarks) for more details.

### Speed

![](https://github.com/heiher/hev-socks5-tunnel/wiki/res/upload-speed.png)
![](https://github.com/heiher/hev-socks5-tunnel/wiki/res/download-speed.png)

### CPU usage

![](https://github.com/heiher/hev-socks5-tunnel/wiki/res/upload-cpu.png)
![](https://github.com/heiher/hev-socks5-tunnel/wiki/res/download-cpu.png)

### Memory usage

![](https://github.com/heiher/hev-socks5-tunnel/wiki/res/upload-mem.png)
![](https://github.com/heiher/hev-socks5-tunnel/wiki/res/download-mem.png)

## How to Build

### Unix

```bash
git clone --recursive https://github.com/heiher/hev-socks5-tunnel
cd hev-socks5-tunnel
make
```

### Android

```bash
mkdir hev-socks5-tunnel
cd hev-socks5-tunnel
git clone --recursive https://github.com/heiher/hev-socks5-tunnel jni
ndk-build
```

### iOS and macOS

```bash
git clone --recursive https://github.com/heiher/hev-socks5-tunnel
cd hev-socks5-tunnel
# will generate HevSocks5Tunnel.xcframework
./build-apple.sh
```

### Library

```bash
git clone --recursive https://github.com/heiher/hev-socks5-tunnel
cd hev-socks5-tunnel

# Static library
make static

# Shared library
make shared
```

## How to Use

### Config

```yaml
tunnel:
# Interface name
name: tun0
# Interface MTU
mtu: 8500
# Multi-queue
multi-queue: false
# IPv4 address
ipv4: 198.18.0.1
# IPv6 address
ipv6: 'fc00::1'
# Post up script
# post-up-script: up.sh
# Pre down script
# pre-down-script: down.sh

socks5:
# Socks5 server port
port: 1080
# Socks5 server address (ipv4/ipv6)
address: 127.0.0.1
# Socks5 UDP relay mode (tcp|udp)
udp: 'udp'
# Socks5 handshake using pipeline mode
# pipeline: false
# Socks5 server username
# username: 'username'
# Socks5 server password
# password: 'password'
# Socket mark
# mark: 0

#misc:
# task stack size (bytes)
# task-stack-size: 86016
# tcp buffer size (bytes)
# tcp-buffer-size: 65536
# connect timeout (ms)
# connect-timeout: 5000
# read-write timeout (ms)
# read-write-timeout: 60000
# stdout, stderr or file-path
# log-file: stderr
# debug, info, warn or error
# log-level: warn
# If present, run as a daemon with this pid file
# pid-file: /run/hev-socks5-tunnel.pid
# If present, set rlimit nofile; else use default value
# limit-nofile: 65535
```

### Run

#### Linux

```bash
# Set socks5.mark = 438
bin/hev-socks5-tunnel conf/main.yml

# Bypass upstream socks5 server
sudo ip rule add fwmark 438 lookup main pref 10
sudo ip -6 rule add fwmark 438 lookup main pref 10

# Route others
sudo ip route add default dev tun0 table 20
sudo ip rule add lookup 20 pref 20
sudo ip -6 route add default dev tun0 table 20
sudo ip -6 rule add lookup 20 pref 20
```

#### FreeBSD/macOS

```zsh
# Bypass upstream socks5 server
# 10.0.0.1: socks5 server
# 10.0.2.2: default gateway
sudo route add -net 10.0.0.1/32 10.0.2.2

# Route others
sudo route change -inet default -interface utun99
sudo route change -inet6 default -interface utun99
```

#### Low memory usage

On low-memory systems like iOS, reducing the size of the TCP buffer
and task stack can help prevent out-of-memory issues.

```yaml
misc:
# task stack size (bytes)
task-stack-size: 24576 # 20480 + tcp-buffer-size
# tcp buffer size (bytes)
tcp-buffer-size: 4096
```

#### Docker Compose

```yaml
version: "3.9"

services:
client:
image: alpine:latest # just for network testing
tty: true # you can test network in terminal
depends_on:
tun:
condition: service_healthy
network_mode: "service:tun"

tun:
image: ghcr.io/heiher/hev-socks5-tunnel:latest # `latest` for the latest published version; `nightly` for the latest source build; `vX.Y.Z` for the specific version
cap_add:
- NET_ADMIN # needed
devices:
- /dev/net/tun:/dev/net/tun # needed
environment:
TUN: tun0 # optional, tun interface name, default `tun0`
MTU: 8500 # optional, MTU is MTU, default `8500`
IPV4: 198.18.0.1 # optional, tun interface ip, default `198.18.0.1`
TABLE: 20 # optional, ip route table id, default `20`
MARK: 438 # optional, ip route rule mark, dec or hex format, default `438`
SOCKS5_ADDR: a.b.c.d # socks5 proxy server address
SOCKS5_PORT: 1080 # socks5 proxy server port
SOCKS5_USERNAME: user # optional, socks5 proxy username, only set when need to auth
SOCKS5_PASSWORD: pass # optional, socks5 proxy password, only set when need to auth
SOCKS5_UDP_MODE: udp # optional, UDP relay mode, default `udp`, other option `tcp`
IPV4_INCLUDED_ROUTES: 0.0.0.0/0 # optional, demo means proxy all traffic. for multiple network segments, join with `,` or `\n`
IPV4_EXCLUDED_ROUTES: a.b.c.d # optional, demo means exclude traffic from the proxy itself. for multiple network segments, join with `,` or `\n`
LOG_LEVEL: warn # optional, default `warn`, other option `debug`/`info`/`error`
dns:
- 8.8.8.8
```

You can also set the route rules with multiple network segments like:

```yaml
environment:
IPV4_INCLUDED_ROUTES: 10.0.0.0/8,172.16.0.0/12,192.168.0.0/16
IPV4_EXCLUDED_ROUTES: |-
a.b.c.d/24
a.b.c.f/24
```

## API

```c
/**
* hev_socks5_tunnel_main:
* @config_path: config file path
* @tun_fd: tunnel file descriptor
*
* Start and run the socks5 tunnel, this function will blocks until the
* hev_socks5_tunnel_quit is called or an error occurs.
*
* Alias of hev_socks5_tunnel_main_from_file
*
* Returns: returns zero on successful, otherwise returns -1.
*
* Since: 2.4.6
*/
int hev_socks5_tunnel_main (const char *config_path, int tun_fd);

/**
* hev_socks5_tunnel_main_from_file:
* @config_path: config file path
* @tun_fd: tunnel file descriptor
*
* Start and run the socks5 tunnel, this function will blocks until the
* hev_socks5_tunnel_quit is called or an error occurs.
*
* Returns: returns zero on successful, otherwise returns -1.
*
* Since: 2.6.7
*/
int hev_socks5_tunnel_main_from_file (const char *config_path, int tun_fd);

/**
* hev_socks5_tunnel_main_from_str:
* @config_str: string config
* @config_len: the byte length of string config
* @tun_fd: tunnel file descriptor
*
* Start and run the socks5 tunnel, this function will blocks until the
* hev_socks5_tunnel_quit is called or an error occurs.
*
* Returns: returns zero on successful, otherwise returns -1.
*
* Since: 2.6.7
*/
int hev_socks5_tunnel_main_from_str (const unsigned char *config_str,
unsigned int config_len, int tun_fd);

/**
* hev_socks5_tunnel_quit:
*
* Stop the socks5 tunnel.
*
* Since: 2.4.6
*/
void hev_socks5_tunnel_quit (void);

/**
* hev_socks5_tunnel_stats:
* @tx_packets (out): transmitted packets
* @tx_bytes (out): transmitted bytes
* @rx_packets (out): received packets
* @rx_bytes (out): received bytes
*
* Retrieve tunnel interface traffic statistics.
*
* Since: 2.6.5
*/
void hev_socks5_tunnel_stats (size_t *tx_packets, size_t *tx_bytes,
size_t *rx_packets, size_t *rx_bytes);
```

## Use Cases

### Android VPN

* [SocksTun](https://github.com/heiher/sockstun)

### iOS

* [Tun2SocksKit](https://github.com/EbrahimTahernejad/Tun2SocksKit)

## Contributors

* **arror** - https://github.com/arror
* **bazuchan** - https://github.com/bazuchan
* **dovecoteescapee** - https://github.com/dovecoteescapee
* **EbrahimTahernejad** - https://github.com/EbrahimTahernejad
* **heiby** - https://github.com/heiby
* **hev** - https://hev.cc
* **pronebird** - https://github.com/pronebird
* **SaeedDev94** - https://github.com/SaeedDev94
* **WankkoRee** - https://github.com/WankkoRee
* **yiguous** - https://github.com/yiguous

## License

MIT