From 19a43a68f29c886ca0fb98c4eb62e5847e9dbe7d Mon Sep 17 00:00:00 2001 From: moparisthebest Date: Fri, 12 Jul 2019 01:02:41 -0400 Subject: [PATCH] Initial Commit --- .gitignore | 4 + Cargo.lock | 6 ++ Cargo.toml | 20 +++++ LICENSE-APACHE | 201 +++++++++++++++++++++++++++++++++++++++++++++++++ LICENSE-MIT | 25 ++++++ README.md | 28 +++++++ src/main.rs | 186 +++++++++++++++++++++++++++++++++++++++++++++ 7 files changed, 470 insertions(+) create mode 100644 .gitignore create mode 100644 Cargo.lock create mode 100644 Cargo.toml create mode 100644 LICENSE-APACHE create mode 100644 LICENSE-MIT create mode 100644 README.md create mode 100644 src/main.rs diff --git a/.gitignore b/.gitignore new file mode 100644 index 0000000..5f3af30 --- /dev/null +++ b/.gitignore @@ -0,0 +1,4 @@ +/target/ +**/*.rs.bk +.idea +easier diff --git a/Cargo.lock b/Cargo.lock new file mode 100644 index 0000000..80a6262 --- /dev/null +++ b/Cargo.lock @@ -0,0 +1,6 @@ +# This file is automatically @generated by Cargo. +# It is not intended for manual editing. +[[package]] +name = "wireguard-proxy" +version = "0.1.0" + diff --git a/Cargo.toml b/Cargo.toml new file mode 100644 index 0000000..d4489cb --- /dev/null +++ b/Cargo.toml @@ -0,0 +1,20 @@ +[package] +name = "wireguard-proxy" +version = "0.1.0" +authors = ["moparisthebest "] + +description = "Tunnel wireguard (UDP) over TCP/TLS." +repository = "https://code.moparisthebest.com/moparisthebest/wireguard-proxy" +keywords = ["wireguard", "tunnel", "tcp", "udp", "tls"] + +license = "MIT/Apache-2.0" +readme = "README.md" + +edition = "2018" + +include = [ + "**/*.rs", + "Cargo.toml", + "LICENSE-*", + "*.md", +] diff --git a/LICENSE-APACHE b/LICENSE-APACHE new file mode 100644 index 0000000..16fe87b --- /dev/null +++ b/LICENSE-APACHE @@ -0,0 +1,201 @@ + Apache License + Version 2.0, January 2004 + http://www.apache.org/licenses/ + +TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION + +1. 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IN NO EVENT +SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY +CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION +OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR +IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER +DEALINGS IN THE SOFTWARE. diff --git a/README.md b/README.md new file mode 100644 index 0000000..f4ab006 --- /dev/null +++ b/README.md @@ -0,0 +1,28 @@ +# wireguard-proxy + +Server-side daemon to proxy multiple TCP connections to wireguard, client-side implementation coming here soon + +Testing with GNU netcat: + +- `nc -vulp 51820` listen on udp like wireguard would +- `nc -u 127.0.0.1 51820` connect directly to local udp wireguard port to send/receive data +- `nc -vlp 5555` listen on tcp like wireguard-proxy would +- `nc 127.0.0.1 5555` connect directly to local tcp wireguard-proxy port to send/recieve data +- so to test through wireguard-proxy run first and last command while it's running, type in both places + +# License + +This project is licensed under either of + + * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or + http://www.apache.org/licenses/LICENSE-2.0) + * MIT license ([LICENSE-MIT](LICENSE-MIT) or + http://opensource.org/licenses/MIT) + +at your option. + +### Contribution + +Unless you explicitly state otherwise, any contribution intentionally submitted +for inclusion in die by you, as defined in the Apache-2.0 license, shall be +dual licensed as above, without any additional terms or conditions. diff --git a/src/main.rs b/src/main.rs new file mode 100644 index 0000000..0ef626c --- /dev/null +++ b/src/main.rs @@ -0,0 +1,186 @@ +use std::io::{Read, Write}; +use std::net::{TcpListener, TcpStream, UdpSocket}; +use std::time::Duration; + +use std::env; +use std::str::FromStr; +use std::sync::Arc; +use std::thread; + +struct Server { + udp_target: String, + udp_host: String, + udp_low_port: u16, + udp_high_port: u16, + socket_timeout: Option, +} + +unsafe impl Send for Server {} + +impl Server { + fn new( + udp_target: String, + udp_host: String, + udp_low_port: u16, + udp_high_port: u16, + secs: u64, + ) -> Server { + Server { + udp_target, + udp_host, + udp_low_port, + udp_high_port, + socket_timeout: match secs { + 0 => None, + x => Some(Duration::from_secs(x)), + }, + } + } + + fn handle_client(&self, mut tcp_stream: TcpStream) -> std::io::Result { + tcp_stream.set_read_timeout(self.socket_timeout)?; + + let mut port = self.udp_low_port; + let udp_socket = loop { + match UdpSocket::bind((&self.udp_host[..], port)) { + Ok(sock) => break sock, + Err(_) => { + port += 1; + if port > self.udp_high_port { + panic!("cannot find free port, increase range?"); + } + } + } + }; + udp_socket.set_read_timeout(self.socket_timeout)?; + udp_socket.connect(&self.udp_target)?; + + let udp_socket_clone = udp_socket.try_clone().expect("clone udp_socket failed"); + let mut tcp_stream_clone = tcp_stream.try_clone().expect("clone tcp_stream failed"); + thread::spawn(move || { + let mut buf = [0u8; 2048]; + loop { + match udp_socket_clone.recv(&mut buf) { + Ok(len) => { + println!("udp got len: {}", len); + tcp_stream_clone + .write(&buf[..len]) + .expect("cannot write to tcp_clone"); + } + Err(e) => { + println!("recv function failed: {:?}", e); + break; + } + } + } + }); + + let mut buf = [0u8; 2048]; + loop { + match tcp_stream.read(&mut buf) { + Ok(len) => { + println!("tcp got len: {}", len); + udp_socket.send(&buf[..len])?; + } + Err(e) => { + println!("Unable to read stream: {}", e); + break; + } + } + } + + Ok(0) + } +} + +struct Args<'a> { + args: &'a Vec, +} + +impl<'a> Args<'a> { + fn new(args: &'a Vec) -> Args { + Args { args } + } + fn get_str(&self, index: usize, def: &'a str) -> &'a str { + match self.args.get(index) { + Some(ret) => ret, + None => def, + } + } + fn get(&self, index: usize, def: T) -> T { + match self.args.get(index) { + Some(ret) => match ret.parse::() { + Ok(ret) => ret, + Err(_) => def, // or panic + }, + None => def, + } + } +} + +fn main() { + let raw_args = env::args().collect(); + let args = Args::new(&raw_args); + if args.get_str(1, "").contains("-h") { + println!( + "usage: {} [-h] [host, 127.0.0.1:5555] [udp_target, 127.0.0.1:51820] [udp_bind_host_range, 127.0.0.1:30000-40000] [socket_timeout, 0]", + args.get_str(0, "curl_bash") + ); + return; + } + let host = args.get_str(1, "127.0.0.1:5555"); + + let udp_bind_host_range_str = args.get_str(3, "127.0.0.1:30000-40000"); + let mut udp_bind_host_range = udp_bind_host_range_str.split(":"); + let udp_host = udp_bind_host_range + .next() + .expect("udp_bind_host_range host invalid"); + let mut udp_ports = udp_bind_host_range + .next() + .expect("udp_bind_host_range port range invalid") + .split("-"); + let udp_low_port = udp_ports + .next() + .expect("udp_bind_host_range low port invalid") + .trim() + .parse::() + .expect("udp_bind_host_range low port invalid"); + let udp_high_port = udp_ports + .next() + .expect("udp_bind_host_range low port invalid") + .trim() + .parse::() + .expect("udp_bind_host_range low port invalid"); + + let server = Arc::new(Server::new( + args.get_str(2, "127.0.0.1:51820").to_owned(), + udp_host.to_string(), + udp_low_port, + udp_high_port, + args.get(4, 0), + )); + + println!( + "udp_target: {}, udp_bind_host_range: {}, socket_timeout: {:?}", + server.udp_target, udp_bind_host_range_str, server.socket_timeout, + ); + + let listener = TcpListener::bind(&host).unwrap(); + println!("Listening for connections on {}", &host); + + for stream in listener.incoming() { + match stream { + Ok(stream) => { + let server = server.clone(); + thread::spawn(move || { + server + .handle_client(stream) + .expect("error handling connection") + }); + } + Err(e) => { + println!("Unable to connect: {}", e); + } + } + } +}