Simple VPN Client in C

A minimalistic VPN client for private use.

Features

• Basic TCP&UDP tunneling
• Connect with HTTPS proxies
• Cross-platform support (Windows/Linux)
• udp-over-tcp obfuscation
• Shadowsocks protocol support
• PFS support
• WireGuard protocol support
• smart defence against DPI (comming soon)

Requirements

• CMake 3.10+
• C compiler (GCC, Clang, MSVC)
• OpenSSL
• pthreads (for windows)
• getopt.h (for windows)
• WireGuard-nt
• cJSON
• ShadowSocks-libev
• OpenVPN

Basic WireGuard tunneling

./vpnCore WireGuard 1.1.1.1:51820 login:pass

Connect through proxy

./vpnCore --proxy=socks5 tcp 1.1.1.1:443

Json config file example

{
    "protocol": "wireguard",
    "server_ip": "1.1.1.1",
    "server_port": 51820,
    "wireguard_private_key": "yAnz5TF+lXXJte14tji3zlMNq+hd2rYUIg2fZOk7hKQ=",
    "wireguard_public_key": "xTIBA5rboUvnH4htodDoEj3WZ+barGBCQHbR47hTHA="
}

Help

./VpnCore help

Windows build

mkdir build
cd build
cmake ..
cmake --build .