tun2tor
A Rust library that creates a utun interface and routes traffic through Tor for secure network tunneling.
What is tun2tor?
tun2tor is a Rust library that creates a virtual utun (userspace tunnel) interface and routes network traffic through Tor or other stream-based proxies. It solves the problem of securely tunneling network data for applications requiring privacy and anonymity, such as those in the iCepa project.
Developers working on privacy-focused applications, especially those embedding secure tunneling in iOS or macOS projects, or anyone needing a lightweight library to route traffic through Tor.
Developers choose tun2tor for its simplicity, embeddability, and direct integration with Tor, offering a specialized solution over generic tunneling tools. Its use of Rust ensures memory safety and performance, while Tokio provides efficient async handling.
Overview
A rust library to provide a virtual utun interface to Tor
Use Cases
Best For
- Embedding secure tunneling in iOS/macOS applications
- Routing network traffic through Tor for anonymity
- Debugging and testing utun-based network setups
- Building privacy-focused mobile apps like iCepa
- Creating lightweight proxies for stream-based data
- Cross-platform network tunneling experiments
Not Ideal For
- New projects requiring long-term maintenance and active development
- Applications needing cross-platform support beyond macOS and iOS
- Systems requiring flexible, runtime configuration without code changes
Pros & Cons
Pros
Utilizes Tokio for asynchronous input/output, providing high-performance network handling as highlighted in the README.
Connects seamlessly to Tor for secure and anonymized traffic routing, ideal for privacy-focused applications like iCepa.
Designed as a minimal library for embedding in projects, offering a small footprint for tunneling needs.
Full support for macOS and iOS with cross-compilation tools, making it suitable for Apple ecosystem development.
Cons
The README explicitly warns that the project will probably be discontinued and recommends leaf, indicating poor future support.
Only supports macOS and iOS currently, with Linux support in development, restricting its use in broader environments.
Settings like IP addresses and ports are hardcoded in main.rs, requiring source modifications for any changes.
Frequently Asked Questions
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