# Ombrac
[![docs][docs-badge]][docs-url]
[![crates][crates-badge]][crates-url]
[![Build Status][ci-badge]][ci-url]
[![Build Status][release-badge]][release-url]
[![Apache 2.0 Licensed][license-badge]][license-url]
**Ombrac** is a high-performance, secure TCP-over-QUIC tunnel implemented in Rust
## Features
- **Secure**: Native TLS encryption built into the QUIC layer
- **High Performance**: Low-latency multiplexing via QUIC bidirectional streams
- **Versatile**: Supports SOCKS5, HTTP/HTTPS, and TUN device modes
- **Zero-RTT**: Supports 0-RTT and 0.5-RTT for near-instant connections
## Installation
The easiest way to get started is to download the latest pre-compiled binary from the [Releases Page](https://github.com/ombrac/ombrac/releases).
### Get Started
- **Homebrew**: `brew tap ombrac/tap && brew install ombrac`
- **Docker**: `docker pull ghcr.io/ombrac/ombrac/ombrac-server:latest`
- **Cargo**: `cargo install ombrac-client ombrac-server --features binary`
### Build from Source
```bash
git clone https://github.com/ombrac/ombrac.git && cd ombrac
cargo build --release --bin ombrac-client --bin ombrac-server --features binary
```
## Usage
### Server Setup
```bash
ombrac-server -l "[::]:443" -k "secret-key" --tls-cert "fullchain.pem" --tls-key "key.pem"
```
### Client Setup
```bash
ombrac-client -s "server:443" -k "secret-key" --socks "127.0.0.1:1080" --http "127.0.0.1:8080"
```
### Docker Deployment (Insecure Mode)
```bash
# Server
docker run -d \
--name ombrac-server \
-p 443:443/udp \
ghcr.io/ombrac/ombrac/ombrac-server:latest \
-l 0.0.0.0:443 \
-k secret \
--tls-mode insecure
# Client
docker run -d \
--name ombrac-client \
-p 1080:1080/tcp \
ghcr.io/ombrac/ombrac/ombrac-client:latest \
-s remote:443 \
-k secret \
--socks 0.0.0.0:1080 \
--tls-mode insecure
```
## CLI
```bash
Usage: ombrac-client [OPTIONS]
Options:
-c, --config <FILE> Path to the JSON configuration file
-h, --help Print help
-V, --version Print version
Required:
-k, --secret <STR> Protocol Secret
-s, --server <ADDR> Address of the server to connect to
Protocol:
--auth-option <STR> Extended parameter of the protocol, used for authentication related information
Endpoint:
--http <ADDR> The address to bind for the HTTP/HTTPS server
--socks <ADDR> The address to bind for the SOCKS server
--tun-fd <FD> Use a pre-existing TUN device by providing its file descriptor `tun_ipv4`, `tun_ipv6`, and `tun_mtu` will be ignored
--tun-ipv4 <CIDR> The IPv4 address and subnet for the TUN device, in CIDR notation
--tun-ipv6 <CIDR> The IPv6 address and subnet for the TUN device, in CIDR notation
--tun-mtu <MTU> The Maximum Transmission Unit (MTU) for the TUN device. [default: 1500]
--fake-dns <CIDR> The IPv4 address pool for the built-in fake DNS server, in CIDR notation. [default: 198.18.0.0/16]
--disable-udp-443 <BOOL> Disable UDP traffic to port 443 [possible values: true, false]
Transport:
--bind <ADDR> The address to bind for transport
--server-name <STR> Name of the server to connect (derived from `server` if not provided)
--tls-mode <TLS_MODE> Set the TLS mode for the connection [possible values: tls, m-tls, insecure]
--ca-cert <FILE> Path to the Certificate Authority (CA) certificate file in 'TLS' mode, if not provided, the system's default root certificates are used
--client-cert <FILE> Path to the client's TLS certificate for mTLS
--client-key <FILE> Path to the client's TLS private key for mTLS
--zero-rtt <BOOL> Enable 0-RTT for faster connection establishment [possible values: true, false]
--alpn-protocols <PROTOCOLS> Application-Layer protocol negotiation (ALPN) protocols [default: h3]
--congestion <ALGORITHM> Congestion control algorithm to use (e.g. bbr, cubic, newreno) [default: bbr]
--cwnd-init <NUM> Initial congestion window size in bytes
--idle-timeout <TIME> Maximum idle time (in milliseconds) before closing the connection [default: 30000]
--keep-alive <TIME> Keep-alive interval (in milliseconds) [default: 8000]
--max-streams <NUM> Maximum number of bidirectional streams that can be open simultaneously [default: 100]
Logging:
--log-level <LEVEL> Logging level (e.g., INFO, WARN, ERROR) [default: INFO]
```
```bash
Usage: ombrac-server [OPTIONS]
Options:
-c, --config <FILE> Path to the JSON configuration file
-h, --help Print help
-V, --version Print version
Required:
-k, --secret <STR> Protocol Secret
-l, --listen <ADDR> Address to bind the server
Transport:
--tls-mode <TLS_MODE> Set the TLS mode for the connection [possible values: tls, m-tls, insecure]
--ca-cert <FILE> Path to the Certificate Authority (CA) certificate file in 'TLS' mode, if not provided, the system's default root certificates are used
--tls-cert <FILE> Path to the server's TLS certificate
--tls-key <FILE> Path to the server's TLS private key
--zero-rtt <BOOL> Enable 0-RTT for faster connection establishment [possible values: true, false]
--alpn-protocols <PROTOCOLS> Application-Layer protocol negotiation (ALPN) protocols [default: h3]
--congestion <ALGORITHM> Congestion control algorithm to use (e.g. bbr, cubic, newreno) [default: bbr]
--cwnd-init <NUM> Initial congestion window size in bytes
--idle-timeout <TIME> Maximum idle time (in milliseconds) before closing the connection [default: 30000]
--keep-alive <TIME> Keep-alive interval (in milliseconds) [default: 8000]
--max-streams <NUM> Maximum number of bidirectional streams that can be open simultaneously [default: 1000]
Logging:
--log-level <LEVEL> Logging level (e.g., INFO, WARN, ERROR) [default: INFO]
```
## License
This project is licensed under the [Apache-2.0 License](./LICENSE).
[docs-badge]: https://docs.rs/ombrac/badge.svg
[docs-url]: https://docs.rs/ombrac
[crates-badge]: https://img.shields.io/badge/crates.io-ombrac-orange
[crates-url]: https://crates.io/crates/ombrac
[license-badge]: https://img.shields.io/badge/license-apache-blue.svg
[license-url]: https://github.com/ombrac/ombrac/blob/main/LICENSE
[ci-badge]: https://github.com/ombrac/ombrac/workflows/CI/badge.svg
[ci-url]: https://github.com/ombrac/ombrac/actions/workflows/ci.yml?query=branch%3Amain
[release-badge]: https://github.com/ombrac/ombrac/workflows/Release/badge.svg
[release-url]: https://github.com/ombrac/ombrac/actions/workflows/release.yml?query=branch%3Amain