shadowsocks

This is a port of shadowsocks.

shadowsocks is a fast tunnel proxy that helps you bypass firewalls.

| Library | Description | | ----------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | shadowsocks | shadowsocks core protocol | | shadowsocks-service | Services for serving shadowsocks | | shadowsocks-rust | Binaries running common shadowsocks services |

Related Projects:

spyophobia/shadowsocks-gtk-rs A GUI on Linux for sslocal using GTK, discussion
honwen/openwrt-shadowsocks-rust OpenWRT solution for sslocal, discussion
cg31/shadowsocks-windows-gui-rust Windows GUI client, discussion

Build & Install

Optional Features

trust-dns - Uses trust-dns-resolver as DNS resolver instead of tokio's builtin.
local-http - Allow using HTTP protocol for sslocal
- local-http-native-tls - Support HTTPS with native-tls
- local-http-rustls - Support HTTPS with rustls
local-tunnel - Allow using tunnel protocol for sslocal
local-socks4 - Allow using SOCKS4/4a protocol for sslocal
local-redir - Allow using redir (transparent proxy) protocol for sslocal
local-dns - Allow using dns protocol for sslocal, serves as a DNS server proxying queries to local or remote DNS servers by ACL rules
stream-cipher - Enable deprecated stream ciphers. WARN: stream ciphers are UNSAFE!
aead-cipher-extra - Enable non-standard AEAD ciphers

Memory Allocators

This project uses system (libc) memory allocator (Rust's default). But it also allows you to use other famous allocators by features:

jemalloc - Uses jemalloc as global memory allocator
mimalloc - Uses mi-malloc as global memory allocator
tcmalloc - Uses TCMalloc as global memory allocator. It tries to link system-wide tcmalloc by default, use vendored from source with tcmalloc-vendored.
snmalloc - Uses snmalloc as global memory allocator
rpmalloc - Uses rpmalloc as global memory allocator

crates.io

Install from crates.io:

```bash

Set default toolchain to nightly

rustup default nightly

RECOMMEND: Check the rust-toolchain file in the project root and use the recommended nightly version

For example:

rustup default nightly-2021-06-03

Install from crates.io

cargo install shadowsocks-rust ```

then you can find sslocal and ssserver in $CARGO_HOME/bin.

Download release

Download static-linked build here.

build-windows: Build for x86_64-pc-windows-msvc
build-linux: Build for x86_64-unknown-linux-gnu, Debian 9 (Stretch), GLIBC 2.18
build-docker: Build for x86_64-unknown-linux-musl, x86_64-pc-windows-gnu, ... (statically linked)

Docker

This project provided Docker images for the linux/i386 and linux/amd64 and linux/arm64/v8 architectures.

Pull from GitHub Container Registry

Docker will pull the image of the appropriate architecture from our GitHub Packages.

bash docker pull ghcr.io/shadowsocks/sslocal-rust:latest docker pull ghcr.io/shadowsocks/ssserver-rust:latest

Build on the local machine（Optional）

If you want to build the Docker image yourself, you need to use the BuildX.

bash docker buildx build -t shadowsocks/ssserver-rust:latest -t shadowsocks/ssserver-rust:v1.11.1 --target ssserver . docker buildx build -t shadowsocks/sslocal-rust:latest -t shadowsocks/sslocal-rust:v1.11.1 --target sslocal .

Run the container

You need to mount the configuration file into the container and create an external port map for the container to connect to it.

```bash docker run --name sslocal-rust \ --restart always \ -p 1080:1080/tcp \ -v /path/to/config.json:/etc/shadowsocks-rust/config.json \ -dit ghcr.io/shadowsocks/sslocal-rust:latest

docker run --name ssserver-rust \ --restart always \ -p 8388:8388/tcp \ -p 8388:8388/udp \ -v /path/to/config.json:/etc/shadowsocks-rust/config.json \ -dit ghcr.io/shadowsocks/ssserver-rust:latest ```

Build from source

Use cargo to build. NOTE: RAM >= 2GiB

bash cargo build --release

Then sslocal and ssserver will appear in ./target/(debug|release)/, it works similarly as the two binaries in the official ShadowSocks' implementation.

bash make install TARGET=release

Then sslocal, ssserver, ssmanager and ssurl will be installed to /usr/local/bin (variable PREFIX).

For Windows users, if you have encountered any problem in building, check and discuss in #102.

target-cpu optimization

If you are building for your current CPU platform (for example, build and run on your personal computer), it is recommended to set target-cpu=native feature to let rustc generate and optimize code for the CPU running the compiler.

bash export RUSTFLAGS="-C target-cpu=native"

Build standalone binaries

Requirements:

Docker

bash ./build/build-release

Then sslocal, ssserver, ssmanager and ssurl will be packaged in

./build/shadowsocks-${VERSION}-stable.x86_64-unknown-linux-musl.tar.xz
./build/shadowsocks-${VERSION}-stable.x86_64-pc-windows-gnu.zip

Read Cargo.toml for more details.

Getting Started

Create a ShadowSocks' configuration file. Example

jsonc { "server": "my_server_ip", "server_port": 8388, "password": "mypassword", "method": "aes-256-gcm", // ONLY FOR `sslocal` // Delete these lines if you are running `ssserver` or `ssmanager` "local_address": "127.0.0.1", "local_port": 1080 }

Detailed explanation could be found in shadowsocks' documentation.

In shadowsocks-rust, we also have an extended configuration file format, which is able to define more than one server. You can also disable individual servers.

jsonc { "servers": [ { "address": "127.0.0.1", "port": 8388, "password": "hello-world", "method": "aes-256-gcm", "timeout": 7200 }, { "address": "127.0.0.1", "port": 8389, "password": "hello-kitty", "method": "chacha20-ietf-poly1305" }, { "disabled": true, "address": "eg.disable.me", "port": 8390, "password": "hello-internet", "method": "chacha20-ietf-poly1305" } ], // ONLY FOR `sslocal` // Delete these lines if you are running `ssserver` or `ssmanager` "local_port": 1080, "local_address": "127.0.0.1" }

sslocal automatically selects the best server with the lowest latency and the highest availability.

Start Shadowsocks client and server with:

bash sslocal -c config.json ssserver -c config.json

If you Build it with Cargo:

bash cargo run --bin sslocal -- -c config.json cargo run --bin ssserver -- -c config.json

List all available arguments with -h.

Usage

Start local client with configuration file

```bash

Read local client configuration from file

sslocal -c /path/to/shadowsocks.json ```

Socks5 Local client

```bash

Pass all parameters via command line

sslocal -b "127.0.0.1:1080" -s "[::1]:8388" -m "aes-256-gcm" -k "hello-kitty" --plugin "v2ray-plugin" --plugin-opts "server;tls;host=github.com"

Pass server with SIP002 URL

sslocal -b "127.0.0.1:1080" --server-url "ss://YWVzLTI1Ni1nY206cGFzc3dvcmQ@127.0.0.1:8388/?plugin=v2ray-plugin%3Bserver%3Btls%3Bhost%3Dgithub.com" ```

HTTP Local client

bash sslocal -b "127.0.0.1:3128" --protocol http -s "[::1]:8388" -m "aes-256-gcm" -k "hello-kitty"

All parameters are the same as Socks5 client, except --protocol http.

Tunnel Local client

```bash

Set 127.0.0.1:8080 as the target for forwarding to

sslocal --protocol tunnel -b "127.0.0.1:3128" -f "127.0.0.1:8080" -s "[::1]:8388" -m "aes-256-gcm" -k "hello-kitty" ```

--protocol tunnel enables local client Tunnel mode
-f "127.0.0.1:8080 sets the tunnel target address

Transparent Proxy Local client

NOTE: It currently only supports

Linux (with iptables targets REDIRECT and TPROXY)
BSDs (with pf), such as OS X 10.10+, FreeBSD, ...

bash sslocal -b "127.0.0.1:60080" --protocol redir -s "[::1]:8388" -m "aes-256-gcm" -k "hello-kitty" --tcp-redir "redirect" --udp-redir "tproxy"

Redirects connections with iptables configurations to the port that sslocal is listening on.

--protocol redir enables local client Redir mode
(optional) --tcp-redir sets TCP mode to REDIRECT (Linux)
(optional) --udp-redir sets UDP mode to TPROXY (Linux)

Tun interface client

NOTE: It currently only supports

Linux, Android
macOS, iOS

Linux

Create a Tun interface with name tun0

bash ip tuntap add mode tun tun0 ifconfig tun0 inet 10.255.0.1 netmask 255.255.255.0 up

Start sslocal with --protocol tun and binds to tun0

bash sslocal --protocol tun -s "[::1]:8388" -m "aes-256-gcm" -k "hello-kitty" --outbound-bind-interface lo0 --tun-interface-name tun0

macOS

bash sslocal --protocol tun -s "[::1]:8388" -m "aes-256-gcm" -k "hello-kitty" --outbound-bind-interface lo0 --tun-interface-address 10.255.0.1/24

It will create a Tun interface with address 10.255.0.1 and netmask 255.255.255.0.

(OPTIONAL) macOS requires adding a route entry to redirect packets that destinated to 10.155.0.1 (the address of the Tun interface) to the Tun interface itself.

```bash

10.255.0.1 address

255.255.255.0 netmask

utun8 tun's interface name

route add -net 10.255.0.1 -netmask 255.255.255.0 -interface utun8 ```

Server

```bash

Read server configuration from file

ssserver -c /path/to/shadowsocks.json

Pass all parameters via command line

ssserver -s "[::]:8388" -m "aes-256-gcm" -k "hello-kitty" --plugin "v2ray-plugin" --plugin-opts "server;tls;host=github.com" ```

Server Manager

Supported Manage Multiple Users API:

add - Starts a server instance
remove - Deletes an existing server instance
list - Lists all current running servers
ping - Lists all servers' statistic data

NOTE: stat command is not supported. Because servers are running in the same process with the manager itself.

```bash

Start it just with --manager-address command line parameter

ssmanager --manager-address "127.0.0.1:6100"

For *nix system, manager can bind to unix socket address

ssmanager --manager-address "/tmp/shadowsocks-manager.sock"

You can also provide a configuration file

`manager_address` key must be provided in the configuration file

ssmanager -c /path/to/shadowsocks.json

Create one server by UDP

echo 'add: {"server_port":8388,"password":"hello-kitty"}' | nc -u '127.0.0.1' '6100'

Close one server by unix socket

echo 'remove: {"server_port":8388}' | nc -Uu '/tmp/shadowsocks-manager.sock' ```

For manager UI, check more details in the shadowsocks-manager project.

Example configuration:

```jsonc { // Required option // Address that ssmanager is listening on "manageraddress": "127.0.0.1", "managerport": 6100,

// Or bind to a Unix Domain Socket
"manager_address": "/tmp/shadowsocks-manager.sock",

"servers": [
    // These servers will be started automatically when ssmanager is started
],

// Outbound socket binds to this IP address
// For choosing different network interface on the same machine
"local_address": "xxx.xxx.xxx.xxx",

// Other options that may be passed directly to new servers

} ```

Configuration

``jsonc { // LOCAL: Listen address. This is exactly the same aslocals[0]` // SERVER: Bind address for remote sockets, mostly used for choosing interface // Don't set it if you don't know what's this for. "localaddress": "127.0.0.1", "localport": 1080,

// Extended multiple local configuration
"locals": [
    {
        // Basic configuration, a SOCKS5 local server
        "local_address": "127.0.0.1",
        "local_port": 1080,
        // OPTIONAL. Setting the `mode` for this specific local server instance.
        // If not set, it will derive from the outer `mode`
        "mode": "tcp_and_udp"
    },
    {
        // SOCKS5, SOCKS4/4a local server
        "protocol": "socks",
        // Listen address
        "local_address": "127.0.0.1",
        "local_port": 1081,
        // OPTIONAL. Enables UDP relay
        "mode": "tcp_and_udp",
        // OPTIONAL. Customizing the UDP's binding address. Depending on `mode`, if
        // - TCP is enabled, then SOCKS5's UDP Association command will return this address
        // - UDP is enabled, then SOCKS5's UDP server will listen to this address.
        "local_udp_address": "127.0.0.1",
        "local_udp_port": 2081
    },
    {
        // Tunnel local server (feature = "local-tunnel")
        "protocol": "tunnel",
        // Listen address
        "local_address": "127.0.0.1",
        "local_port": 5353,
        // Forward address, the target of this tunnel
        // In this example, this will build a `127.0.0.1:5353` -> `8.8.8.8:53` tunnel
        "forward_address": "8.8.8.8",
        "forward_port": 53,
        // OPTIONAL. Customizing whether to start TCP and UDP tunnel
        "mode": "tcp_only"
    },
    {
        // HTTP local server (feature = "local-http")
        "protocol": "http",
        // Listen address
        "local_address": "127.0.0.1",
        "local_port": 3128
    },
    {
        // DNS local server (feature = "local-dns")
        // This DNS works like China-DNS, it will send requests to `local_dns` and `remote_dns` and choose by ACL rules
        "protocol": "dns",
        // Listen address
        "local_address": "127.0.0.1",
        "local_port": 53,
        // Local DNS address, DNS queries will be sent directly to this address
        "local_dns_address": "114.114.114.114",
        // OPTIONAL. Local DNS's port, 53 by default
        "local_dns_port": 53,
        // Remote DNS address, DNS queries will be sent through ssserver to this address
        "remote_dns_address": "8.8.8.8",
        // OPTIONAL. Remote DNS's port, 53 by default
        "remote_dns_port": 53
    },
    {
        // Tun local server (feature = "local-tun")
        "protocol": "tun",
        // Tun interface name
        "tun_interface_name": "tun0",
        // Tun interface address
        //
        // It has to be a host address in CIDR form
        "tun_interface_address": "10.255.0.1/24"
    }
],

// Server configuration
// listen on [::] for dual stack support
"server": "::",
// Change to use your custom port number
"server_port": 8388,
"method": "aes-256-gcm",
"password": "your-password",
"plugin": "v2ray-plugin",
"plugin_opts": "mode=quic;host=github.com",
// Server: TCP socket timeout in seconds.
// Client: TCP connection timeout in seconds.
// Omit this field if you don't have specific needs.
"timeout": 7200,

// Extended multiple server configuration
// LOCAL: Choosing the best server to connect dynamically
// SERVER: Creating multiple servers in one process
"servers": [
    {
        // Fields are the same as the single server's configuration

        // Individual servers can be disabled
        // "disabled": true,
        "address": "0.0.0.0",
        "port": 8389,
        "method": "aes-256-gcm",
        "password": "your-password",
        "plugin": "...",
        "plugin_opts": "...",
        "timeout": 7200,

        // Customized weight for local server's balancer
        //
        // Weight must be in [0, 1], default is 1.0.
        // The higher weight, the server may rank higher.
        "tcp_weight": 1.0,
        "udp_weight": 1.0,
    }
],

// Global configurations for UDP associations
"udp_timeout": 300, // Timeout for UDP associations (in seconds), 5 minutes by default
"udp_max_associations": 512, // Maximum UDP associations to be kept in one server, unlimited by default

// Options for Manager
"manager_address": "127.0.0.1", // Could be a path to UNIX socket, /tmp/shadowsocks-manager.sock
"manager_port": 5300, // Not needed for UNIX socket

// DNS server's address for resolving domain names
// For *NIX and Windows, it uses system's configuration by default
//
// Value could be IP address of DNS server, for example, "8.8.8.8".
// DNS client will automatically request port 53 with both TCP and UDP protocol.
//
// It also allows some pre-defined well-known public DNS servers:
// - google (TCP, UDP)
// - cloudflare (TCP, UDP)
// - cloudflare_tls (TLS), enable by feature "dns-over-tls"
// - cloudflare_https (HTTPS), enable by feature "dns-over-https"
// - quad9 (TCP, UDP)
// - quad9_tls (TLS), enable by feature "dns-over-tls"
//
// The field is only effective if feature "trust-dns" is enabled.
"dns": "google",

// Mode, could be one of the
// - tcp_only
// - tcp_and_udp
// - udp_only
"mode": "tcp_only",

// TCP_NODELAY
"no_delay": false,

// Enables `SO_KEEPALIVE` and set `TCP_KEEPIDLE`, `TCP_KEEPINTVL` to the specified seconds
"keep_alive": 15,

// Soft and Hard limit of file descriptors on *NIX systems
"nofile": 10240,

// Try to resolve domain name to IPv6 (AAAA) addresses first
"ipv6_first": false,

// Balancer customization
"balancer": {
    // MAX Round-Trip-Time (RTT) of servers
    // The timeout seconds of each individual checks
    "max_server_rtt": 5,
    // Interval seconds between each check
    "check_interval": 10,
}

} ```

Supported Ciphers

AEAD Ciphers

chacha20-ietf-poly1305
aes-128-gcm, aes-256-gcm

Stream Ciphers

plain or none (No encryption, only used for debugging or with plugins that ensure transport security)

Deprecated

* `table` * `aes-128-cfb`, `aes-128-cfb1`, `aes-128-cfb8`, `aes-128-cfb128` * `aes-192-cfb`, `aes-192-cfb1`, `aes-192-cfb8`, `aes-192-cfb128` * `aes-256-cfb`, `aes-256-cfb1`, `aes-256-cfb8`, `aes-256-cfb128` * `aes-128-ctr` * `aes-192-ctr` * `aes-256-ctr` * `camellia-128-cfb`, `camellia-128-cfb1`, `camellia-128-cfb8`, `camellia-128-cfb128` * `camellia-192-cfb`, `camellia-192-cfb1`, `camellia-192-cfb8`, `camellia-192-cfb128` * `camellia-256-cfb`, `camellia-256-cfb1`, `camellia-256-cfb8`, `camellia-256-cfb128` * `rc4-md5` * `chacha20-ietf`

ACL

sslocal, ssserver, and ssmanager support ACL file with syntax like shadowsocks-libev. Some examples could be found in here.

Available sections

For local servers (sslocal, ssredir, ...)
- Modes:
- [bypass_all] - ACL runs in BlackList mode. Bypasses all addresses that didn't match any rules.
- [proxy_all] - ACL runs in WhiteList mode. Proxies all addresses that didn't match any rules.
- Rules:
- [bypass_list] - Rules for connecting directly
- [proxy_list] - Rules for connecting through proxies
For remote servers (ssserver)
- Modes:
- [reject_all] - ACL runs in BlackList mode. Rejects all clients that didn't match any rules.
- [accept_all] - ACL runs in WhiteList mode. Accepts all clients that didn't match any rules.
- Rules:
- [white_list] - Rules for accepted clients
- [black_list] - Rules for rejected clients
- [outbound_block_list] - Rules for blocking outbound addresses.

Example

```ini

SERVERS

For ssserver, accepts requests from all clients by default

[accept_all]

Blocks these clients

[black_list] 1.2.3.4 127.0.0.1/8

Disallow these outbound addresses

[outboundblocklist] 127.0.0.1/8 ::1

Using regular expression

^[a-z]{5}.baidu.com

Match exactly

|baidu.com

Match with subdomains

||google.com

An internationalized domain name should be converted to punycode

|☃-⌘.com - WRONG

|xn----dqo34k.com

||джpумлатест.bрфa - WRONG

||xn--p-8sbkgc5ag7bhce.xn--ba-lmcq

CLIENTS

For sslocal, ..., bypasses all targets by default

[bypass_all]

Proxy these addresses

[proxy_list] ||google.com 8.8.8.8 ```

Useful Tools

ssurl is for encoding and decoding ShadowSocks URLs (SIP002). Example:

plain ss://YWVzLTI1Ni1jZmI6cGFzc3dvcmQ@127.0.0.1:8388/?plugin=obfs-local%3Bobfs%3Dhttp%3Bobfs-host%3Dwww.baidu.com

Notes

It supports the following features:

[x] SOCKS5 CONNECT command
[x] SOCKS5 UDP ASSOCIATE command (partial)
[x] SOCKS4/4a CONNECT command
[x] Various crypto algorithms
[x] Load balancing (multiple servers) and server delay checking
[x] [SIP004](https://github.com/shadowsocks/shadowsocks-org/issues/30) AEAD ciphers
[x] [SIP003](https://github.com/shadowsocks/shadowsocks-org/issues/28) Plugins
[x] [SIP002](https://github.com/shadowsocks/shadowsocks-org/issues/27) Extension ss URLs
[x] HTTP Proxy Supports (RFC 7230 and CONNECT)
[x] Defend against replay attacks, shadowsocks/shadowsocks-org#44
[x] Manager APIs, supporting Manage Multiple Users
[x] ACL (Access Control List)
[x] Support HTTP/HTTPS Proxy protocol

TODO

[x] Documentation
[x] Extend configuration format
[x] Improved logging format (waiting for the new official log crate)
[x] Support more ciphers without depending on libcrypto (waiting for an acceptable Rust crypto lib implementation)
[x] Windows support.
[ ] Build with stable rustc (blocking by crypto2).
[x] Support HTTP Proxy protocol
[x] AEAD ciphers. (proposed in SIP004, still under discussion)
[x] Choose server based on delay #152

License

The MIT License (MIT)

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

shadowsocks

Build & Install

Optional Features

Memory Allocators

crates.io

Set default toolchain to nightly

RECOMMEND: Check the rust-toolchain file in the project root and use the recommended nightly version

For example:

rustup default nightly-2021-06-03

Install from crates.io

Download release

Docker

Pull from GitHub Container Registry

Build on the local machine（Optional）

Run the container

Build from source

target-cpu optimization

Build standalone binaries

Getting Started

Usage

Read local client configuration from file

Socks5 Local client

Pass all parameters via command line

Pass server with SIP002 URL

HTTP Local client

Tunnel Local client

Set 127.0.0.1:8080 as the target for forwarding to

Transparent Proxy Local client

Tun interface client

Linux

macOS

10.255.0.1 address

255.255.255.0 netmask

utun8 tun's interface name

Server

Read server configuration from file

Pass all parameters via command line

Server Manager

Start it just with --manager-address command line parameter

For *nix system, manager can bind to unix socket address

You can also provide a configuration file

manager_address key must be provided in the configuration file

Create one server by UDP

Close one server by unix socket

Configuration

Supported Ciphers

AEAD Ciphers

Stream Ciphers

ACL

Available sections

Example

SERVERS

For ssserver, accepts requests from all clients by default

Blocks these clients

Disallow these outbound addresses

Using regular expression

Match exactly

Match with subdomains

An internationalized domain name should be converted to punycode

|☃-⌘.com - WRONG

||джpумлатест.bрфa - WRONG

CLIENTS

For sslocal, ..., bypasses all targets by default

Proxy these addresses

Useful Tools

Notes

TODO

License

`manager_address` key must be provided in the configuration file