fuzz/src/packet_recv_client.rs

#![no_main]

#[macro_use]
extern crate libfuzzer_sys;

#[macro_use]
extern crate lazy_static;

use std::net::SocketAddr;

use std::sync::Mutex;

lazy_static! {
    static ref CONFIG: Mutex<quiche::Config> = {
        let mut config = quiche::Config::new(quiche::PROTOCOL_VERSION).unwrap();
        config
            .set_application_protos(&[b"hq-23", b"http/0.9"])
            .unwrap();
        config.set_initial_max_data(30);
        config.set_initial_max_stream_data_bidi_local(15);
        config.set_initial_max_stream_data_bidi_remote(15);
        config.set_initial_max_stream_data_uni(10);
        config.set_initial_max_streams_bidi(3);
        config.set_initial_max_streams_uni(3);
        config.verify_peer(false);

        Mutex::new(config)
    };
}

static SCID: quiche::ConnectionId<'static> =
    quiche::ConnectionId::from_ref(&[0; quiche::MAX_CONN_ID_LEN]);

fuzz_target!(|data: &[u8]| {
    let from: SocketAddr = "127.0.0.1:1234".parse().unwrap();
    let to: SocketAddr = "127.0.0.1:4321".parse().unwrap();

    let mut buf = data.to_vec();

    let mut conn = quiche::connect(
        Some("quic.tech"),
        &SCID,
        to,
        from,
        &mut CONFIG.lock().unwrap(),
    )
    .unwrap();

    let info = quiche::RecvInfo { from, to };

    conn.recv(&mut buf, info).ok();
});