Crate ktls_core 

ktls-core

Abstraction for implementing Linux kernel TLS (kTLS) offload in Rust.

Overview

This crate provides a low-level interface for setting up kernel TLS (kTLS) regardless of your preferred TLS library.

Implementation Guide

Setting up kTLS generally involves these steps:

1. Creates a TcpStream (or something else like UnixStream).
2. Configures the TLS User Level Protocol (ULP) on the stream.
3. Performs the TLS handshake using your preferred TLS library over the stream.
4. Creates the Stream using the configured stream and crypto materials.

Then you can use the Stream as a drop-in replacement of the original TcpStream.

Kernel Compatibility

We perform daily CI tests against the following kernel versions:

Version
mainline
stable
6.6.x (LTS)
6.1.x (LTS)
5.15.x (LTS)
5.10.x (LTS)
5.4.x (LTS)

(For LTS kernels, we test against the latest patch version)

For examples and tests details, please refer to the ktls-tests.

License

Licensed under either of:

• Apache License, Version 2.0 (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT License (LICENSE-MIT or http://opensource.org/licenses/MIT)

at your option.

Re-exports

pub use self::context::Context;

pub use self::error::Error;

pub use self::setup::setup_tls_params;

pub use self::setup::setup_ulp;

pub use self::setup::TlsCryptoInfoRx;

pub use self::setup::TlsCryptoInfoTx;

pub use self::tls::ConnectionTrafficSecrets;

pub use self::tls::ProtocolVersion;

pub use self::tls::TlsSession;

Modules

context

Kernel TLS connection context.

error

Error related types and implementations.

ffi

Safe syscall wrappers.

probe

Utilities for probing kernel TLS support.

setup

Transport Layer Security (TLS) is a Upper Layer Protocol (ULP) that runs over TCP. TLS provides end-to-end data integrity and confidentiality.

shim

Shim layer for different TLS libraries.

tls

Shim layer for TLS protocol implementations.

utils

Utilities