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corplink-rs

使用 rust 实现的 飞连 客户端，支持 Linux/Windows10/MacOS

安装

ArchLinux

下载 release 中的安装包，并安装

pacman -U corplink-rs-4.1-1-x86_64.pkg.tar.zst

欢迎贡献其它包管理器的打包脚本

手动编译

linux/macos

git clone https://github.com/PinkD/corplink-rs --depth 1
cd corplink-rs
# build libwg
cd libwg
./build.sh
# if you are using Windows, you can clone and build libwg maunally
# ref: wireguard-go/Makefile:libwg

cargo build --release
# install corplink-rs to your PATH
mv target/release/corplink-rs /usr/bin/

windows

前提: 需要 Go (≥1.22)、GCC (MinGW-w64)、make、Rust (GNU 工具链)。

安装工具链后，在 PowerShell 中执行：

# 1. 构建 libwg（生成 libwg.a + libwg.h）
cd libwg
.\build.ps1

# 2. 构建 Rust 项目
cd ..
rustup toolchain install stable-gnu
rustup default stable-x86_64-pc-windows-gnu
cargo build --release

编译的 build.ps1 会调用 make libwg，该目标会以 CGO_ENABLED=1 编译 Go 代码。 MinGW GCC 需要在 PATH 中，且 make 需要支持 bash 风格环境变量语法。 也可在 MSYS2 UCRT64 环境中执行 ./build.sh（同样需要 Go + GCC）。

用法

该程序需要 root 权限来启动 wg-go (windows 上需要管理员权限)

# direct
corplink-rs config.json
# systemd
# config is /etc/corplink/config.json
systemctl start corplink-rs.service
# auto start
systemctl enable corplink-rs.service

# systemd with custom config
# config is /etc/corplink/test.json
# NOTE: cookies.json is reserved by cookie storage
systemctl start corplink-rs@test.service

windows 使用说明

快速开始（推荐使用预编译版本）

  1. 从 Releases 下载 corplink-rs-*-windows.zip
  2. 解压到任意目录
  3. 运行 setup.ps1 自动获取 wintun.dll：
powershell -ExecutionPolicy Bypass -File setup.ps1
  1. 编辑 config.json，填入公司代码和登录信息（见下方配置文件实例）
  2. 以管理员身份打开 PowerShell，运行：
.\corplink-rs.exe config.json

# 调试模式
$env:RUST_LOG="debug"; .\corplink-rs.exe config.json

wintun.dll 说明

corplink-rs 依赖 Wintun 虚拟网卡驱动来创建 WireGuard 隧道。由于 Wintun 的许可证要求用户从官网直接获取，我们无法在 release 包中附带该文件。

setup.ps1 脚本会自动从 wintun.net 下载并解压 amd64 版本的 wintun.dll 到当前目录。

手动获取：访问 wintun.net，下载 zip 包，将 bin/amd64/wintun.dll 复制到 corplink-rs.exe 所在目录。

管理员权限

程序需要管理员权限，原因：

  • wg-go 需要创建 TUN 虚拟网卡
  • 配置系统路由表（自动添加 VPN 路由）

如果运行时提示 please run as administrator，右键 PowerShell 选择"以管理员身份运行"。

常见问题

  • wintun.dll 找不到：运行 setup.ps1 或手动下载放入同目录
  • 配置文件 JSON 不支持注释：示例中的 // comment 需要删除
  • 路由未生效：检查是否以管理员运行，关闭其他 VPN 软件避免路由冲突

macos 特殊说明

macos 要求 tun 设备的名称满足正则表达式 utun[0-9]* ，因此需要将配置文件中的 interface_name 改为符合正则的名字，例如 utun12345
另外， utun 后的数字类型应该是 int16 ，如果大于 32767 会报错 Failed to create TUN device: invalid argument 。具体参考 #46

log level 配置

本项目使用 env_logger 作为 log 库，修改 log level 需要使用环境变量，示例：

RUST_LOG=debug ./corplink-rs config.json

配置文件实例

最小配置

{
  "company_name": "company code name",
  "username": "your_name"
}

推荐配置(自用配置)

{
  "company_name": "company code name",
  "username": "your_name",
  "password": "your_pass",
  "platform": "ldap"
}

完整配置

{
  "company_name": "company code name",
  "username": "your_name",
  // support sha256sum hashed pass if you don't use ldap, will ask email for code if not provided
  "password": "your_pass",
  // default is feilian, can be feilian/ldap/lark(aka feishu)/OIDC
  // dingtalk/aad/weixin is not supported yet
  "platform": "ldap",
  "code": "totp code",
  // default is DollarOS(not CentOS)
  "device_name": "any string to describe your device",
  "device_id": "md5 of device_name or any string with same format",
  "public_key": "wg public key, can be generated from private key",
  "private_key": "wg private key",
  "server": "server link",
  // enable wg-go log to debug uapi problems
  "debug_wg": true,
  // will use corplink as interface name
  "interface_name": "corplink",
  // will use the specified server to connect, for example 'HK-1'
  // name from server list
  "vpn_server_name": "hk",
  // latency/default
  // latency: choose the server with the lowest latency
  // default: choose the first available server
  "vpn_select_strategy": "latency",
  // use vpn dns (macOS: networksetup; Linux: rename /etc/resolv.conf aside
  //   and write a new one with the VPN-provided nameserver)
  // NOTE: if process doesn't exit gracefully, your dns may not be restored
  "use_vpn_dns": false,
  // optional: filename for the Linux backup of /etc/resolv.conf.
  // Default "resolv.conf.corplink", always placed next to /etc/resolv.conf.
  // macOS ignores this field.
  "dns_backup_filename": null,
  // automatically setup system routes (default: true)
  // set to false if you want to manually configure routes
  "auto_setup_routes": true,
  // route mode: "split" (default) or "full"
  // - split: use intranet routes from server (same as official split mode)
  // - full:  use full-tunnel routes from server
  //          often combined with "auto_setup_routes": false in container/gateway setups
  "route_mode": "split",
  // optional: list of CIDRs to carve out of AllowedIPs (and system routes).
  // applied as CIDR subtraction: each entry is subtracted from every route
  // returned by the server, so listing a smaller range like "10.68.0.0/16"
  // still punches a hole even when the server returns a supernet like
  // "0.0.0.0/0" (full-tunnel). useful for keeping local LAN traffic off the
  // VPN, and for excluding the VPN peer endpoint IP to avoid a routing loop
  // that would otherwise black-hole all traffic.
  "vpn_disallowed_routes": ["192.168.1.0/24"]
}

原理和分析

飞连 是基于 wg-go 魔改的企业级 VPN 产品

配置原理

魔改了配置的方式，加了鉴权

猜测是：

  • 动态管理 peer
  • 客户端通过验证后，使用 public key 来请求连接，然后服务端就将客户端的 key 加到 peer 库里，然后将配置返回给客户端，等待客户端连接
    • wg 是支持同一个接口上连多个 peer ，所以这样是 OK 的
  • 定时将不活跃的客户端清理，释放分配的 IP
  • ...

因此，我们只需要生成 wg 的 key ，然后去找服务端拿配置，然后写到 wg 配置里，启动 wg ，就能连上服务端了

后续改动

2.0.9 版本(或者更早)新增了 protocol_version 字段，需要使用魔改后的 wg-corplink 才能连接

请求流程

Linux

graph TD;
    A[Password Login];
    B[Request Email Code];
    C[Email Login];
    D[Verify 2-FA];
    E[List VPN];
    F[Ping VPN];
    G[Connect VPN];
    A-->D;
    B-->C-->D;
    D-->E-->F-->G;
Loading

Android

graph TD;
    A[Password Login];
    B[Request Email Code];
    C[Email Login];
    D[List VPN];
    E[Ping VPN];
    F[Connect VPN With 2-FA Code];
    A-->D;
    B-->C;
    C-->D-->E-->F;
Loading

otp 实现

飞连的 otp 是使用的标准的 totp ，在 ua 为 Android 时，会在登录时返回 totp 的 token ，然后使用 totp 算法就能生成出当前时间的验证码了，然后在获取连接信息时传输该验证码，就不需要单独验证验证码了

TODO

  • 使用 Tauri 实现界面(或许大概可能永远不会有)
  • 实现 TCP 版的 wg 协议
  • 为不同配置生成不同的 cookies.json
  • windows/mac 实现
  • 自动使用从服务器返回的请求中的时间戳同步时间
  • 自动生成 wg key
  • 修复服务端异常断开连接后客户端不会退出的问题

Changelog

  • 0.5.4
    • fix memory leak in unsafe code
    • refactor error handling with anyhow
    • fix default log level
    • add ci for push event(@yanyongyu)
  • 0.5.3
    • remove keep-alive api call
  • 0.5.2
    • add ipv6 support(@hexchain @ManiaciaChao)
  • 0.5.1
    • support using dns from server for macos(@fanwenlin)
    • fix high cpu usage
  • 0.5.0
    • add tcp support for wg-go
  • 0.4.4
    • add macos release(by @overvenus)
    • fix single ip route(by @simpleapples)
    • add qr code suuport for feishu login(@simpleapples)
  • 0.4.3
    • support corplink 2.2.x(by @jixiuf)
  • 0.4.2
    • add OIDC platform support(by @Jinxuyang)
  • 0.4.1
    • fix Windows device up
    • fix undefined behavior for c str
  • 0.4.0
    • embed wg-go with cgo
  • 0.3.6
    • fix wg-corplink not exit(by @LionheartLann)
    • fix session is expired(by @XYenon)
  • 0.3.5
    • fix empty login method list
    • fix write long data to uapi(by @nolouch)
    • add vpn server name option(by @nolouch)
  • 0.3.4
    • fix cookie out of date
  • 0.3.3
    • add feishu tps login support
    • upgrade dependency
  • 0.3.2
    • separate cookies.json
    • add debug flag for wg-go
  • 0.3.1
  • 0.3.0
    • add windows/mac support
  • 0.2.3
    • fix empty protocol_version
    • add privilege check
  • 0.2.2
    • fix wg-corplink not exit if corplink-rs exit accidently
  • 0.2.1
    • use modified wireguard-go
      • don't generate config anymore
    • remove conf_name/conf_dir and add interface_name/wg_binary in config
  • 0.1.4
    • get company name from company code automatically
    • support ldap
    • check and skip tcp wg server
    • optimize config
  • 0.1.3
    • disconnect if wireguard handshake timeout
  • 0.1.2
    • support time correction for totp
  • 0.1.1
    • support generate wg key
  • 0.1.0
    • first version

参考链接

License

 Copyright (C) 2023  PinkD, ShuNing, LionheartLann, XYenon, Verge, jixiuf,
 simpleapples, overvenus, fanwenlin, hexchain, ManiaciaChao, yanyongyu

    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License
    as published by the Free Software Foundation; either version 2
    of the License, or (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.

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使用 rust 实现的飞连客户端

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wireguard corplink

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