Libraries and Tools
As explained in the Build article, Eddie is linked to or uses different tools and libraries to perform tasks.
The list below matches resources/libraries.txt in the Eddie repository (also shown in the About dialog).
Common (all platforms)
OpenVPN
A secure tunneling daemon.
License: GNU General Public License (GPL v2+)
https://openvpn.net/
WireGuard
Fast, modern, secure VPN tunnel (protocol and core). Platform-specific components are listed in the sections below.
License: GNU General Public License (GPL v2)
https://www.wireguard.com/
stunnel
A TLS encryption wrapper.
License: GNU General Public License (GPL v2+)
https://www.stunnel.org/
nlohmann/json
JSON for Modern C++ (bundled source).
License: MIT
https://github.com/nlohmann/json
sha256
FIPS-180-2 SHA-256 implementation by Christophe Devine (bundled source).
License: GNU General Public License (GPL v2+)
base64
Base64 encoder/decoder by Rene Nyffenegger (bundled source).
License: zlib-style (see dependencies/base64/base64.h)
three.js
3D graphics library, bundled into the WebUI world map globe (map-globe.bundle.js).
License: MIT
https://threejs.org/
three-globe
Three.js globe component used by the WebUI world map globe (bundled).
License: MIT
https://github.com/vasturiano/three-globe
solar-calculator
Sun-position math for the globe day/night terminator (bundled).
License: ISC
https://github.com/d3/solar-calculator
Shared on Linux and MacOS
Hummingbird
OpenVPN 3 client based on the AirVPN OpenVPN 3 library.
License: GNU General Public License (GPL v3)
https://airvpn.org/hummingbird/
PStreams
POSIX process I/O for C++ by Jonathan Wakely (bundled source).
License: Boost Software License, Version 1.0
https://www.boost.org/LICENSE10.txt
MacOS-only
wireguard-go
Userspace implementation of WireGuard.
License: MIT
https://git.zx2c4.com/wireguard-go/
wireguard-tools (wg)
WireGuard configuration utility.
License: GNU General Public License (GPL v2)
https://git.zx2c4.com/wireguard-tools/
Windows-only
wireguard-nt (wireguard.dll)
Kernel driver, redistributed and used only through the documented wireguard.h API, with no source modifications. Redistribution is permitted by section 3.d of its license because Eddie distributes wireguard.dll alongside software that uses it only via the Permitted API.
License: WireGuard LLC Prebuilt Binaries License (proprietary)
https://download.wireguard.com/wireguard-nt/
tap-windows6 (tap0901, tapctl)
TAP virtual network driver, installed and managed by Eddie.
License: GNU General Public License (GPL v2)
https://github.com/OpenVPN/tap-windows6
ovpn-dco-win (ovpn-dco)
OpenVPN Data Channel Offload driver, installed and managed by Eddie.
License: GNU General Public License (GPL v2)
https://github.com/OpenVPN/ovpn-dco-win
Plink (PuTTY)
Command-line SSH client, bundled for SSH tunneling support.
License: MIT
https://www.chiark.greenend.org.uk/~sgtatham/putty/
yxml
A small XML parser (bundled source), used by the Windows elevated helper.
License: MIT
https://dev.yorhel.nl/yxml
Assets (imagery)
NASA Blue Marble (Blue Marble Next Generation)
Daytime Earth texture (earth-day.jpg) for the WebUI world map, 2D and globe. December composite with bathymetry, 5400x2700.
License: Public domain (NASA imagery, no endorsement implied)
https://eoimages.gsfc.nasa.gov/images/imagerecords/73000/73909/world.topo.bathy.200412.3x5400x2700.jpg
NASA Black Marble 2016
Night-time city-lights texture (earth-night.jpg) for the WebUI world map, 2D and globe. Sourced from the 3 km image and downscaled to 8192x4096.
License: Public domain (NASA imagery, no endorsement implied)
https://eoimages.gsfc.nasa.gov/images/imagerecords/144000/144898/BlackMarble20163km.jpg