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Implement first, unfinished version of DNS support and fix incomplete TCP stream bug

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This commit does two things:
First, it implements a first, unfinished version of the virtual DNS
functionality. This feature is incomplete and has known bugs. Since it
needs to be enabled manually, this is not a huge issue so far.
Second, the commit fixes a bug where TCP streams where not properly
relayed, causing TCP connections to stall.
This commit is contained in:
B. Blechschmidt 2023-03-23 13:03:01 +01:00
parent 56d0dd9d42
commit c9297124e1
5 changed files with 375 additions and 54 deletions
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11
src/main.rs
View file

@ -1,6 +1,7 @@
use clap::Parser;
use env_logger::Env;
use tun2proxy::tun2proxy::Options;
use tun2proxy::{main_entry, Proxy};
/// Tunnel interface to proxy
@ -14,6 +15,9 @@ struct Args {
/// The proxy URL in the form proto://[username[:password]@]host:port
#[arg(short, long = "proxy", value_parser = Proxy::from_url, value_name = "URL")]
proxy: Proxy,
#[arg(short, long = "dns")]
virtual_dns: bool,
}
fn main() {
@ -24,5 +28,10 @@ fn main() {
let proxy_type = args.proxy.proxy_type;
log::info!("Proxy {proxy_type} server: {addr}");
main_entry(&args.tun, args.proxy);
let mut options = Options::new();
if args.virtual_dns {
options = options.with_virtual_dns();
}
main_entry(&args.tun, args.proxy, options);
}