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0000000..8d5a2f8 --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,11 @@ +[package] +name = "ip-over-anything" +version = "0.1.0" +edition = "2024" + +[dependencies] +tun = "0.7.13" +thiserror = "2.0.12" +log = "0.4.26" +pretty-hex = "0.4.1" +env_logger = "0.11.6" diff --git a/src/layers/mod.rs b/src/layers/mod.rs new file mode 100644 index 0000000..979ba2b --- /dev/null +++ b/src/layers/mod.rs @@ -0,0 +1,10 @@ +use thiserror::Error; + +#[derive(Debug, Error)] +pub enum LayerError {} + +pub trait Layer { + fn frame(&mut self, data: &mut Vec) -> Result; + + fn deframe(&mut self, data: &mut Vec) -> Result; +} diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..9794a99 --- /dev/null +++ b/src/main.rs @@ -0,0 +1,37 @@ +mod layers; +mod medium; +mod tun_tx_worker; + +use crate::tun_tx_worker::TunTxWorker; +use log::LevelFilter; + +fn main() -> Result<(), Box> { + env_logger::builder() + .filter_level(LevelFilter::Info) + .parse_default_env() + .init(); + + let mut config = tun::Configuration::default(); + config + .address((10, 0, 0, 9)) + .netmask((255, 255, 255, 0)) + .destination((10, 0, 0, 1)) + .up(); + + #[cfg(target_os = "linux")] + config.platform_config(|config| { + // requiring root privilege to acquire complete functions + config.ensure_root_privileges(true); + }); + + let dev = tun::create(&config)?; + + let (tx, _rx) = dev.split(); + + let medium = medium::logger::Logger {}; + let tx_worker = TunTxWorker::new(tx, medium); + + tx_worker.worker_thread(); + + Ok(()) +} diff --git a/src/medium/logger.rs b/src/medium/logger.rs new file mode 100644 index 0000000..00aa3ea --- /dev/null +++ b/src/medium/logger.rs @@ -0,0 +1,18 @@ +use crate::medium::WriteMedium; +use log::info; + +pub struct Logger; + +impl std::io::Write for Logger { + fn write(&mut self, buf: &[u8]) -> std::io::Result { + info!("Outbound Message: {}", pretty_hex::pretty_hex(&buf)); + + Ok(buf.len()) + } + + fn flush(&mut self) -> std::io::Result<()> { + Ok(()) + } +} + +impl WriteMedium for Logger {} diff --git a/src/medium/mod.rs b/src/medium/mod.rs new file mode 100644 index 0000000..956ff33 --- /dev/null +++ b/src/medium/mod.rs @@ -0,0 +1,11 @@ +pub mod logger; + +use std::io::{Read, Write}; + +pub trait ReadMedium: Read {} + +pub trait WriteMedium: Write {} + +pub trait Medium: Read + Write { + fn split(self) -> (Box, Box); +} diff --git a/src/tun_tx_worker.rs b/src/tun_tx_worker.rs new file mode 100644 index 0000000..cdd5174 --- /dev/null +++ b/src/tun_tx_worker.rs @@ -0,0 +1,40 @@ +use crate::layers::Layer; +use crate::medium::WriteMedium; +use std::io::Read; + +pub struct TunTxWorker { + layers: Vec>, + tun_reader: tun::Reader, + tx_medium: T, +} + +impl TunTxWorker { + pub fn new(tun_reader: tun::Reader, medium: T) -> Self { + Self { + layers: vec![], + tun_reader, + tx_medium: medium, + } + } + + pub fn add_layer(&mut self, layer: Box) { + self.layers.push(layer) + } + + pub fn worker_thread(mut self) { + let mut buffer = vec![0; 4096]; + loop { + buffer.resize(4096, 0); + let data_read = self.tun_reader.read(&mut buffer).unwrap(); + + if data_read == 0 { + return; + } + + // TODO: Add layer processing + + self.tx_medium.write_all(&buffer[..data_read]).unwrap(); + buffer.clear(); + } + } +}