rustls / rustls-openssl-compat Goto Github PK

See rustls/rustls-ffi#404

It would help with the eventual move towards shared FFI helpers if this repo also adopted the Castable helper macros recently added in rustls-ffi.

Filing this as an issue instead of a PR making the switch to avoid unnecessary conflicts with in-progress work. We can do this at some future point.

Checklist

• I've searched the issue tracker for similar requests

Is your feature request related to a problem? Please describe.

Use rustls as a drop in replacement for OpenSSL with the public API from OpenSSL 3.2.0 (or latest stable 3.x version) as per the roadmap (https://github.com/rustls/rustls/blob/main/ROADMAP.md) so that I can use rustls as my main TLS implementation with applications that are not written in rust and depend on openssl.

Describe the solution you'd like

libssl.so implemented by rustls with the same header file names and functions as openssl. Allow a main.c to be linked with original openssl libs or rustls libs and functionally work the same way. Initially starting by implementing enough to run openssl-bench and then enough to use in curl, and then the whole public API.

Describe alternatives you've considered

Convert everyone to using rust 🦀 or could create a separate C library that is NOT a drop in replacement. I think both of these would harm adoption rates though.

Additional context

This is part of the roadmap. I'm just creating this for initial discussion on plans to implement before there is a PR opened. Apologies if work has already started on this.