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https://github.com/paullouisageneau/libjuice
JUICE is a UDP Interactive Connectivity Establishment library
https://github.com/paullouisageneau/libjuice
c ice libnice nat-hole-punching nat-traversal p2p peer-to-peer rfc-5389 rfc-5766 rfc-8445 rfc-8489 rfc-8656 sdp sip stun stun-client turn-client udp webrtc
Last synced: 15 days ago
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JUICE is a UDP Interactive Connectivity Establishment library
- Host: GitHub
- URL: https://github.com/paullouisageneau/libjuice
- Owner: paullouisageneau
- License: mpl-2.0
- Created: 2020-01-01T18:45:16.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2024-04-26T17:06:51.000Z (6 months ago)
- Last Synced: 2024-05-01T21:51:17.804Z (6 months ago)
- Topics: c, ice, libnice, nat-hole-punching, nat-traversal, p2p, peer-to-peer, rfc-5389, rfc-5766, rfc-8445, rfc-8489, rfc-8656, sdp, sip, stun, stun-client, turn-client, udp, webrtc
- Language: C
- Homepage:
- Size: 774 KB
- Stars: 366
- Watchers: 15
- Forks: 69
- Open Issues: 15
-
Metadata Files:
- Readme: README.md
- Funding: .github/FUNDING.yml
- License: LICENSE
Awesome Lists containing this project
README
# libjuice - UDP Interactive Connectivity Establishment
[](https://www.mozilla.org/en-US/MPL/2.0/)
[](https://github.com/paullouisageneau/libjuice/actions/workflows/build.yml)
[](https://repology.org/project/libjuice/versions)
[](https://repology.org/project/libjuice/versions)
[](https://gitter.im/libjuice/community?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
[](https://discord.gg/jXAP8jp3Nn)
libjuice :lemon::sweat_drops: (_JUICE is a UDP Interactive Connectivity Establishment library_) allows to open bidirectionnal User Datagram Protocol (UDP) streams with Network Address Translator (NAT) traversal.
The library is a simplified implementation of the Interactive Connectivity Establishment (ICE) protocol, client-side and server-side, written in C without dependencies for POSIX platforms (including GNU/Linux, Android, Apple macOS and iOS) and Microsoft Windows. The client supports only a single component over UDP per session in a standard single-gateway network topology, as this should be sufficient for the majority of use cases nowadays.
libjuice is licensed under MPL 2.0, see [LICENSE](https://github.com/paullouisageneau/libjuice/blob/master/LICENSE).
libjuice is available on [AUR](https://aur.archlinux.org/packages/libjuice/) and [vcpkg](https://vcpkg.io/en/getting-started). Bindings are available for [Rust](https://github.com/VollmondT/juice-rs).
For a STUN/TURN server application based on libjuice, see [Violet](https://github.com/paullouisageneau/violet).
## Compatibility
The library implements a simplified full ICE agent ([RFC5245](https://www.rfc-editor.org/rfc/rfc5245.html) then [RFC8445](https://www.rfc-editor.org/rfc/rfc8445.html)) featuring:
- STUN protocol ([RFC5389](https://www.rfc-editor.org/rfc/rfc5389.html) then [RFC8489](https://www.rfc-editor.org/rfc/rfc8489.html))
- TURN relaying ([RFC5766](https://www.rfc-editor.org/rfc/rfc5766.html) then [RFC8656](https://www.rfc-editor.org/rfc/rfc8656.html))
- ICE Consent freshness ([RFC7675](https://www.rfc-editor.org/rfc/rfc7675.html))
- ICE Patiently Awaiting Connectivity ([RFC 8863](https://www.rfc-editor.org/rfc/rfc8863.html))
- SDP-based interface ([RFC8839](https://www.rfc-editor.org/rfc/rfc8839.html))
- IPv4 and IPv6 dual-stack support
- Optional multiplexing on a single UDP port
The limitations compared to a fully-featured ICE agent are:
- Only UDP is supported as transport protocol and other protocols are ignored.
- Only one component is supported, which is sufficient for WebRTC Data Channels and multiplexed RTP+RTCP.
- Candidates are gathered without binding to each network interface, which behaves identically to the full implementation on most client systems.
It also implements a lightweight STUN/TURN server ([RFC8489](https://www.rfc-editor.org/rfc/rfc8489.html) and [RFC8656](https://www.rfc-editor.org/rfc/rfc8656.html)). The server can be disabled at compile-time with the `NO_SERVER` flag.
## Dependencies
None!
Optionally, [Nettle](https://www.lysator.liu.se/~nisse/nettle/) can provide SHA1 and SHA256 algorithms instead of the internal implementation.
## Building
### Clone repository
```bash
$ git clone https://github.com/paullouisageneau/libjuice.git
$ cd libjuice
```
### Build with CMake
The CMake library targets `libjuice` and `libjuice-static` respectively correspond to the shared and static libraries. The default target will build the library and tests. It exports the targets with namespace `LibJuice::LibJuice` and `LibJuice::LibJuiceStatic` to link the library from another CMake project.
#### POSIX-compliant operating systems (including Linux and Apple macOS)
```bash
$ cmake -B build
$ cd build
$ make -j2
```
The option `USE_NETTLE` allows to use the Nettle library instead of the internal implementation for HMAC-SHA1:
```bash
$ cmake -B build -DUSE_NETTLE=1
$ cd build
$ make -j2
```
#### Microsoft Windows with MinGW cross-compilation
```bash
$ cmake -B build -DCMAKE_TOOLCHAIN_FILE=/usr/share/mingw/toolchain-x86_64-w64-mingw32.cmake # replace with your toolchain file
$ cd build
$ make -j2
```
#### Microsoft Windows with Microsoft Visual C++
```bash
$ cmake -B build -G "NMake Makefiles"
$ cd build
$ nmake
```
### Build directly with Make (Linux only)
```bash
$ make
```
The option `USE_NETTLE` allows to use the Nettle library instead of the internal implementation for HMAC-SHA1:
```bash
$ make USE_NETTLE=1
```
## Example
See [test/connectivity.c](https://github.com/paullouisageneau/libjuice/blob/master/test/connectivity.c) for a complete local connection example.
See [test/server.c](https://github.com/paullouisageneau/libjuice/blob/master/test/server.c) for a server example.