relayouter

High-performance non-blocking static file serving web server implementation written in FASM, mostly inspired by tiny-nginx.

Naturally with this being x86 assembly using raw syscalls, it won't work on anything other than a Linux x86-64 machine.

Overview

Relayouter is a very small (currently ~5.3 KiB) nginx-like http server that is:

• written in x86 assembly without libc (or any linking at all),
• parallelized across multiple processes bound to each CPU core,
• utilizing epoll for efficient I/O multiplexing,
• using only a single arena allocation for sharing data between processes (everything else is stack allocated),
• able to decode URLs and detect MIME types properly.

Note

There are some critical bugs I need to fix with this. It's also very easily exploitable so don't use this in anything important.

Usage

# clone the repo
git clone "https://github.com/peachey2k2/relayouter.git"
cd ./relayouter

make build # build
make run   # build and run

It'll be hosted on http://localhost:8080/ and serve from ./public

Todo

• recover from more errors
• switch to edge-triggered
• redo jumps with consideration for branch predictions
• reorganize the files
• configuration system