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https://doc.rust-lang.org/cargo/reference/manifest.html - -[dependencies] diff --git a/client/src/main.rs b/client/src/main.rs deleted file mode 100644 index e7a11a9..0000000 --- a/client/src/main.rs +++ /dev/null @@ -1,3 +0,0 @@ -fn main() { - println!("Hello, world!"); -} diff --git a/commons/Cargo.toml b/commons/Cargo.toml index 4ae0719..2eae443 100644 --- a/commons/Cargo.toml +++ b/commons/Cargo.toml @@ -3,7 +3,14 @@ name = "commons" version = "0.1.0" authors = ["Adamaq01 "] edition = "2018" +build = "build.rs" # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html [dependencies] +serde = { version = "1.0.114", features = ["derive"] } +bincode = "1.3.1" +uuid = { version = "0.8.1", features = ["serde"] } + +[build-dependencies] +vergen = "3.1.0" diff --git a/commons/build.rs b/commons/build.rs new file mode 100644 index 0000000..ddbdb68 --- /dev/null +++ b/commons/build.rs @@ -0,0 +1,12 @@ +extern crate vergen; + +use vergen::{generate_cargo_keys, ConstantsFlags}; + +fn main() { + // Setup the flags, toggling off the 'SEMVER' flag + let mut flags = ConstantsFlags::all(); + flags.toggle(ConstantsFlags::SEMVER); + + // Generate the 'cargo:' key output + generate_cargo_keys(flags).expect("Unable to generate the cargo keys!"); +} diff --git a/commons/src/lib.rs b/commons/src/lib.rs index 31e1bb2..92968d6 100644 --- a/commons/src/lib.rs +++ b/commons/src/lib.rs @@ -1,7 +1,34 @@ -#[cfg(test)] -mod tests { - #[test] - fn it_works() { - assert_eq!(2 + 2, 4); +use std::env; +use std::fmt::Error; + +pub mod packet; + +pub const VERSION: &str = concat!("v", env!("VERGEN_SEMVER"), "-", env!("VERGEN_SHA_SHORT")); +pub const DEFAULT_PORT: u16 = 8765; +pub const DEFAULT_PORT_STR: &str = "8765"; +pub const BUFFER_SIZE: usize = 2048; + +pub fn get_path(num: usize) -> Result { + if num > 9 { + Err(Error::default()) + } else { + Ok(format!( + "{}discord-ipc-{}", + if cfg!(windows) { + "\\\\.\\pipe\\".to_string() + } else { + get_temp_path()? + "/" + }, + num + )) } } + +pub fn get_temp_path() -> Result { + env::var("XDG_RUNTIME_DIR") + .or_else(|_| env::var("TMPDIR")) + .or_else(|_| env::var("TMP")) + .or_else(|_| env::var("TEMP")) + .or_else(|_| env::temp_dir().into_os_string().into_string()) + .or_else(|_| Ok("/tmp".to_string())) +} diff --git a/commons/src/packet.rs b/commons/src/packet.rs new file mode 100644 index 0000000..4d4c366 --- /dev/null +++ b/commons/src/packet.rs @@ -0,0 +1,20 @@ +use bincode::Result; +use serde::{Deserialize, Serialize}; +use uuid::Uuid; + +#[derive(Serialize, Deserialize)] +pub enum Packet { + Connect(Uuid), + Disconnect(Uuid), + Data(Uuid, Vec), +} + +impl Packet { + pub fn deserialize(data: Vec) -> Result { + bincode::deserialize(data.as_slice()) + } + + pub fn serialize(&self) -> Result> { + bincode::serialize(&self) + } +} diff --git a/guest/Cargo.toml b/guest/Cargo.toml new file mode 100644 index 0000000..ac62602 --- /dev/null +++ b/guest/Cargo.toml @@ -0,0 +1,18 @@ +[package] +name = "guest" +version = "0.1.0" +authors = ["Adamaq01 "] +edition = "2018" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +commons = { path = "../commons" } +parity-tokio-ipc = { git = "https://github.com/open-trade/parity-tokio-ipc" } +# pretty-hex = "0.1.1" +tokio = { version = "0.2.22", features = ["io-driver", "io-util", "uds", "stream", "rt-core", "macros", "time", "net", "tcp", "sync"] } +bytes = "0.5.6" +async-trait = "0.1.36" +clap = "3.0.0-beta.1" +futures = "0.3" +uuid = { version = "0.8.1", features = ["v4"] } diff --git a/guest/src/main.rs b/guest/src/main.rs new file mode 100644 index 0000000..7eb6901 --- /dev/null +++ b/guest/src/main.rs @@ -0,0 +1,139 @@ +use std::collections::HashMap; +use std::error::Error; +use std::sync::Arc; + +use clap::Clap; +use futures::stream::StreamExt; +use parity_tokio_ipc::{Connection, Endpoint, SecurityAttributes}; +use tokio::io::{AsyncWriteExt, WriteHalf}; +use tokio::net::tcp::OwnedWriteHalf; +use tokio::net::TcpStream; +use tokio::sync::Mutex; +use tokio::{self, prelude::*}; +use uuid::Uuid; + +use commons::packet::Packet; +use commons::packet::Packet::Data; + +#[allow(irrefutable_let_patterns)] +#[tokio::main] +async fn main() -> Result<(), Box> { + let opts: Opts = Opts::parse(); + let addr = opts.address + ":" + opts.port.to_string().as_str(); + + println!("Connecting to {}", addr); + let (mut rx, tx) = TcpStream::connect(&addr).await?.into_split(); + println!("Successfully connected to {}", addr); + + let state = Arc::new(Mutex::new(Shared::new(tx))); + + // TCP Connection + let tcp_state = Arc::clone(&state); + tokio::spawn(async move { + loop { + let mut buf = [0u8; commons::BUFFER_SIZE]; + let length = rx + .read(&mut buf[..]) + .await + .expect("Couldn't receive data from Host"); + if length == 0 { + continue; + } + if let Ok(packet) = Packet::deserialize(buf[..length].to_vec()) { + if let Data(uuid, data) = packet { + if let Some(peer) = tcp_state.lock().await.peers.get_mut(&uuid) { + let _ = peer.write_all(data.as_slice()).await; + } + } + } + // tcp_state.lock().await.broadcast(&buf[..length]).await; + // println!("{:?}", data.hex_dump()); + } + }); + + // Discord + let mut endpoint = Endpoint::new(commons::get_path(0)?); + endpoint.set_security_attributes(SecurityAttributes::allow_everyone_create()?); + + let mut incoming = endpoint.incoming()?; + println!("Listening for Discord IPC Calls"); + + loop { + let stream: Connection = incoming + .next() + .await + .expect("Couldn't receive connection")?; + + let state = Arc::clone(&state); + + let (mut rx, tx) = tokio::io::split(stream); + + let uuid = Uuid::new_v4(); + state.lock().await.peers.insert(uuid, tx); + let _ = state.lock().await.send_packet(Packet::Connect(uuid)).await; + + tokio::spawn(async move { + println!("Accepted connection {}", uuid); + + let mut buf = [0u8; commons::BUFFER_SIZE]; + while let Ok(length) = rx.read(&mut buf[..]).await { + if length == 0 { + break; + } + // println!("{}", &buf[..length].to_vec().hex_dump()); + let _ = state + .lock() + .await + .send_packet(Packet::Data(uuid, buf[..length].to_vec())) + .await; + } + + { + state + .lock() + .await + .send_packet(Packet::Disconnect(uuid)) + .await; + state.lock().await.peers.remove(&uuid); + println!("Removed connection {}", uuid) + } + }); + } +} + +struct Shared { + tx: OwnedWriteHalf, + peers: HashMap>, +} + +impl Shared { + fn new(tx: OwnedWriteHalf) -> Self { + Shared { + tx, + peers: HashMap::new(), + } + } + + async fn send_packet(&mut self, packet: Packet) { + let _ = self + .tx + .write_all(packet.serialize().unwrap().as_slice()) + .await; + } +} + +/// Enables Discord Rich Presence on Linux Host for games running in a Windows Guest VM +#[derive(Clap)] +#[clap( +name = "VFIO Discord IPC Bridge Guest", +version = commons::VERSION, +author = "Adamaq01 " +)] +struct Opts { + /// The address to connect to + #[clap(short = "i", long)] + address: String, + /// The port to connect to + #[clap(short, long, default_value = commons::DEFAULT_PORT_STR)] + port: u16, +} diff --git a/host/Cargo.toml b/host/Cargo.toml new file mode 100644 index 0000000..1342299 --- /dev/null +++ b/host/Cargo.toml @@ -0,0 +1,19 @@ +[package] +name = "host" +version = "0.1.0" +authors = ["Adamaq01 "] +edition = "2018" + +# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html + +[dependencies] +commons = { path = "../commons" } +parity-tokio-ipc = "0.7.0" +# pretty-hex = "0.1.1" +tokio = { version = "0.2.22", features = ["io-driver", "io-util", "uds", "stream", "rt-core", "macros", "time", "net", "tcp", "sync"] } +bytes = "0.5.6" +interfaces = "0.0.4" +async-trait = "0.1.36" +clap = "3.0.0-beta.1" +futures = "0.3.5" +uuid = { version = "0.8.1", features = ["v4"] } diff --git a/host/src/discord.rs b/host/src/discord.rs new file mode 100644 index 0000000..c83f8f8 --- /dev/null +++ b/host/src/discord.rs @@ -0,0 +1,150 @@ +use std::io::Error; + +use async_trait::async_trait; +use bytes::BufMut; +use parity_tokio_ipc::{Connection, Endpoint}; +use tokio::io::{AsyncReadExt, AsyncWriteExt, ErrorKind, ReadHalf, WriteHalf}; + +#[async_trait] +pub trait DiscordRead { + async fn receive_data(&mut self) -> Result, Error>; + async fn receive_data_exact(&mut self, length: usize) -> Result, Error>; +} + +#[async_trait] +pub trait DiscordWrite { + async fn send_packet(&mut self, op_code: u32, json: String) -> Result<(), Error>; + async fn send_data(&mut self, data: Vec) -> Result<(), Error>; + async fn shutdown(&mut self) -> Result<(), Error>; +} + +#[async_trait] +impl DiscordRead for Discord { + async fn receive_data(&mut self) -> Result, Error> { + let mut buf = [0u8; commons::BUFFER_SIZE]; + self.connection + .read(&mut buf[..]) + .await + .map(|length| buf[..length].to_vec()) + } + + async fn receive_data_exact(&mut self, length: usize) -> Result, Error> { + let mut buf = [0u8; commons::BUFFER_SIZE]; + self.connection + .read_exact(&mut buf[..length]) + .await + .map(|length| buf[..length].to_vec()) + } +} + +#[async_trait] +impl DiscordWrite for Discord { + async fn send_packet(&mut self, op_code: u32, json: String) -> Result<(), Error> { + let mut packet = vec![0u8; 0]; + packet.put_u32_le(op_code); + packet.put_u32_le(json.len() as u32); + packet.put(json.as_bytes()); + self.connection.write_all(packet.as_slice()).await + } + + async fn send_data(&mut self, data: Vec) -> Result<(), Error> { + self.connection.write_all(data.as_slice()).await + } + + async fn shutdown(&mut self) -> Result<(), Error> { + self.connection.shutdown().await + } +} + +pub struct DiscordReadHalf { + rx: ReadHalf, +} + +pub struct DiscordWriteHalf { + tx: WriteHalf, +} + +#[allow(dead_code)] +impl DiscordReadHalf { + pub fn merge(self, tx: DiscordWriteHalf) -> Discord { + Discord { + connection: self.rx.unsplit(tx.tx), + } + } +} + +#[allow(dead_code)] +impl DiscordWriteHalf { + pub fn merge(self, rx: DiscordReadHalf) -> Discord { + Discord { + connection: rx.rx.unsplit(self.tx), + } + } +} + +#[async_trait] +impl DiscordRead for DiscordReadHalf { + async fn receive_data(&mut self) -> Result, Error> { + let mut buf = [0u8; commons::BUFFER_SIZE]; + self.rx + .read(&mut buf[..]) + .await + .map(|length| buf[..length].to_vec()) + } + + async fn receive_data_exact(&mut self, length: usize) -> Result, Error> { + let mut buf = [0u8; commons::BUFFER_SIZE]; + self.rx + .read_exact(&mut buf[..length]) + .await + .map(|length| buf[..length].to_vec()) + } +} + +#[async_trait] +impl DiscordWrite for DiscordWriteHalf { + async fn send_packet(&mut self, op_code: u32, json: String) -> Result<(), Error> { + let mut packet = vec![0u8; 0]; + packet.put_u32_le(op_code); + packet.put_u32_le(json.len() as u32); + packet.put(json.as_bytes()); + self.tx.write_all(packet.as_slice()).await + } + + async fn send_data(&mut self, data: Vec) -> Result<(), Error> { + self.tx.write_all(data.as_slice()).await + } + + async fn shutdown(&mut self) -> Result<(), Error> { + self.tx.shutdown().await + } +} + +pub struct Discord { + connection: Connection, +} + +impl Discord { + pub async fn connect() -> Result { + for i in 0..10 { + let path = commons::get_path(i).map_err(|err| Error::new(ErrorKind::Other, err))?; + println!("Attempting to connect to {}", path); + let client = Endpoint::connect(path.clone()).await; + if client.is_ok() { + println!("Connected to {}", path); + return client.map(|connection| Discord { connection }); + } else { + println!("Failed to connect to {}", path); + } + } + Err(Error::new( + ErrorKind::Other, + "Couldn't connect to the Discord Client", + )) + } + + pub fn split(self) -> (DiscordReadHalf, DiscordWriteHalf) { + let (rx, tx) = tokio::io::split(self.connection); + (DiscordReadHalf { rx }, DiscordWriteHalf { tx }) + } +} diff --git a/host/src/main.rs b/host/src/main.rs new file mode 100644 index 0000000..d87ce11 --- /dev/null +++ b/host/src/main.rs @@ -0,0 +1,198 @@ +extern crate interfaces; + +use std::collections::HashMap; +use std::error::Error; +use std::net::SocketAddr; +use std::ops::{Index, IndexMut}; +use std::sync::Arc; + +use clap::Clap; +use futures::future::{AbortHandle, Abortable}; +use interfaces::{Interface, Kind}; +use tokio::io::{AsyncReadExt, AsyncWriteExt}; +use tokio::net::tcp::OwnedWriteHalf; +use tokio::net::TcpListener; +use tokio::sync::Mutex; +use uuid::Uuid; + +use commons::packet::Packet; + +use crate::discord::{Discord, DiscordRead, DiscordWrite, DiscordWriteHalf}; + +mod discord; + +#[allow(irrefutable_let_patterns)] +#[tokio::main] +async fn main() -> Result<(), Box> { + let opts: Opts = Opts::parse(); + let addr = opts + .interface + .map(|interface| { + get_address( + &Interface::get_by_name(interface.as_str()) + .expect("Couldn't get interface") + .expect("Couldn't get interface"), + ) + .expect("Couldn't get interface address") + }) + .unwrap_or_else(|| "0.0.0.0".to_string()) + + ":" + + opts.port.to_string().as_str(); + + let state = Arc::new(Mutex::new(Shared::new())); + + // TCP Connections + let mut listener = TcpListener::bind(&addr).await?; + println!("Listening on: {}", addr); + loop { + let (stream, addr) = listener.accept().await?; + + let state = Arc::clone(&state); + + let (mut rx, tx) = stream.into_split(); + + let peer = Peer::new(addr, tx); + state.lock().await.peers.insert(addr, peer); + + tokio::spawn(async move { + println!("Accepted connection {}", addr); + + let mut buf = [0u8; commons::BUFFER_SIZE]; + while let Ok(length) = rx.read(&mut buf[..]).await { + if length == 0 { + break; + } + // println!("{}", &buf[..length].to_vec().hex_dump()); + let packet = Packet::deserialize(buf[..length].to_vec()).unwrap(); + match packet { + Packet::Connect(uuid) => { + let (mut discord_rx, discord_tx) = + Discord::connect().await.unwrap().split(); + let (abort_handle, abort_registration) = AbortHandle::new_pair(); + state.lock().await[addr] + .abort_handles + .insert(uuid, abort_handle); + state.lock().await[addr].discords.insert(uuid, discord_tx); + let discord_state = Arc::clone(&state); + let _ = tokio::spawn(Abortable::new( + async move { + loop { + let data = discord_rx.receive_data().await; + if let Ok(data) = data { + let _ = discord_state.lock().await[addr] + .tx + .write_all( + Packet::Data(uuid, data) + .serialize() + .unwrap() + .as_slice(), + ) + .await; + } else { + return; + } + } + }, + abort_registration, + )); + } + Packet::Data(uuid, data) => { + let _ = state.lock().await[addr] + .discords + .get_mut(&uuid) + .unwrap() + .send_data(data) + .await; + } + Packet::Disconnect(uuid) => { + let _ = state.lock().await[addr] + .abort_handles + .remove(&uuid) + .unwrap() + .abort(); + let _ = state.lock().await[addr] + .discords + .remove(&uuid) + .unwrap() + .shutdown() + .await; + } + } + } + + { + state.lock().await.peers.remove(&addr); + println!("Removed connection {}", addr) + } + }); + } +} + +pub fn get_address(interface: &Interface) -> Option { + for addr in &interface.addresses { + if addr.kind == Kind::Ipv4 && addr.addr.is_some() { + return Some(addr.addr?.ip().to_string()); + } + } + None +} + +struct Peer { + address: SocketAddr, + tx: OwnedWriteHalf, + abort_handles: HashMap, + discords: HashMap, +} + +impl Peer { + fn new(address: SocketAddr, tx: OwnedWriteHalf) -> Peer { + Peer { + address, + tx, + abort_handles: HashMap::new(), + discords: HashMap::new(), + } + } +} + +struct Shared { + peers: HashMap, +} + +impl Shared { + fn new() -> Self { + Shared { + peers: HashMap::new(), + } + } +} + +impl Index for Shared { + type Output = Peer; + + fn index(&self, index: SocketAddr) -> &Self::Output { + self.peers.get(&index).unwrap() + } +} + +impl IndexMut for Shared { + fn index_mut(&mut self, index: SocketAddr) -> &mut Self::Output { + self.peers.get_mut(&index).unwrap() + } +} + +/// Enables Discord Rich Presence on Linux Host for games running in a Windows Guest VM +#[derive(Clap)] +#[clap( +name = "VFIO Discord IPC Bridge Host", +version = commons::VERSION, +author = "Adamaq01 " +)] +struct Opts { + /// The network interface to use + #[clap(short, long)] + interface: Option, + /// The port to listen to + #[clap(short, long, default_value = commons::DEFAULT_PORT_STR)] + port: u16, +} diff --git a/server/Cargo.toml b/server/Cargo.toml deleted file mode 100644 index 5606aee..0000000 --- a/server/Cargo.toml +++ /dev/null @@ -1,9 +0,0 @@ -[package] -name = "server" -version = "0.1.0" -authors = ["Adamaq01 "] -edition = "2018" - -# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html - -[dependencies] diff --git a/server/src/main.rs b/server/src/main.rs deleted file mode 100644 index e7a11a9..0000000 --- a/server/src/main.rs +++ /dev/null @@ -1,3 +0,0 @@ -fn main() { - println!("Hello, world!"); -}