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// SPDX-License-Identifier: BSD-3-Clause
use devices::virtio::{
BincodeRequest, BincodeResponse, InterruptProxy, InterruptProxyEvent, MsgOnSocketRequest,
MsgOnSocketResponse, RemotePciCapability, VirtioDevice, Wl,
};
use msg_socket::MsgSocket;
use poly_msg_socket::PolyMsgSocket;
use std::collections::BTreeMap;
use std::fs::remove_file;
use sys_util::{error, net::UnixSeqpacketListener, warn, GuestMemory};
#[cfg(any(target_arch = "arm", target_arch = "aarch64"))]
pub use aarch64::arch_memory_regions;
#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
pub use x86_64::arch_memory_regions;
type Socket =
PolyMsgSocket<MsgOnSocketResponse, MsgOnSocketRequest, BincodeResponse, BincodeRequest>;
fn main() {
eprintln!("hello world");
// Create and display the socket.
let mut path = std::env::var("XDG_RUNTIME_DIR").expect("XDG_RUNTIME_DIR missing");
path.push_str("/crosvm-wl.sock");
let _ = remove_file(&path);
let server = UnixSeqpacketListener::bind(&path).expect("failed to create control socket");
println!("{}", path);
// Receive connection from crosvm.
let conn = server.accept().expect("accept failed");
let msg_socket: Socket = PolyMsgSocket::new(conn);
let (vm_socket, memory_params) = match msg_socket.recv() {
Ok(poly_msg_socket::Value::MsgOnSocket(MsgOnSocketRequest::Create {
vm_socket,
memory_params,
})) => (MsgSocket::new(vm_socket.owned()), memory_params),
Ok(msg) => {
panic!("received unexpected message: {:?}", msg);
}
Err(e) => {
panic!("recv error: {}", e);
}
};
let mut wayland_paths = BTreeMap::new();
wayland_paths.insert("".into(), "/run/user/1000/wayland-0".into());
let mut wl = Wl::new(wayland_paths, vm_socket, None).unwrap();
loop {
use poly_msg_socket::Value::*;
match msg_socket.recv() {
Ok(MsgOnSocket(MsgOnSocketRequest::Kill)) => {
// Will block until worker shuts down.
drop(wl);
if let Err(e) = msg_socket.send(MsgOnSocketResponse::Kill) {
error!("responding to Kill failed: {}", e);
}
break;
}
Ok(MsgOnSocket(MsgOnSocketRequest::AckFeatures(value))) => wl.ack_features(value),
Ok(Bincode(BincodeRequest::ReadConfig { offset, len })) => {
let mut data = vec![0; len];
wl.read_config(offset, &mut data);
if let Err(e) = msg_socket.send(BincodeResponse::ReadConfig(data)) {
panic!("responding to ReadConfig failed: {}", e);
}
}
Ok(Bincode(BincodeRequest::WriteConfig { offset, ref data })) => {
wl.write_config(offset, data)
}
Ok(MsgOnSocket(MsgOnSocketRequest::Activate {
shm,
interrupt,
interrupt_resample_evt,
in_queue,
out_queue,
in_queue_evt,
out_queue_evt,
})) => {
let shm = shm.owned();
let regions = arch_memory_regions(memory_params);
let mem =
GuestMemory::with_memfd(®ions, shm).expect("GuestMemory::with_memfd failed");
let interrupt: MsgSocket<InterruptProxyEvent, ()> =
MsgSocket::new(interrupt.owned());
wl.activate(
mem,
Box::new(InterruptProxy::new(
interrupt,
interrupt_resample_evt.owned(),
)),
vec![in_queue, out_queue],
vec![in_queue_evt.owned(), out_queue_evt.owned()],
);
println!("activated Wl");
}
Ok(MsgOnSocket(MsgOnSocketRequest::Reset)) => {
let result = wl.reset();
if let Err(e) = msg_socket.send(MsgOnSocketResponse::Reset(result)) {
panic!("responding to Reset failed: {}", e);
}
}
Ok(Bincode(BincodeRequest::GetDeviceBars(address))) => {
let result = wl.get_device_bars(address);
if let Err(e) = msg_socket.send(BincodeResponse::GetDeviceBars(result)) {
panic!("responding to GetDeviceBars failed: {}", e);
}
}
Ok(Bincode(BincodeRequest::GetDeviceCaps)) => {
let result = wl
.get_device_caps()
.into_iter()
.map(|c| RemotePciCapability::from(&*c))
.collect();
if let Err(e) = msg_socket.send(BincodeResponse::GetDeviceCaps(result)) {
panic!("responding to GetDeviceCaps failed: {}", e);
}
}
Ok(MsgOnSocket(msg @ MsgOnSocketRequest::Create { .. })) => {
panic!("unexpected message {:?}", msg)
}
Err(e) => panic!("recv failed: {}", e),
}
}
}
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