114 lines
2.7 KiB
Rust
114 lines
2.7 KiB
Rust
use tokio::task::JoinHandle;
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use quic_demo::prelude::*;
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#[tokio::main]
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async fn main () -> anyhow::Result <()> {
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tracing_subscriber::fmt::init ();
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let server_addr = "0.0.0.0:30380".parse ()?;
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let (mut incoming, server_cert) = make_server_endpoint (server_addr)?;
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tokio::fs::write ("quic_server.crt", &server_cert).await?;
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debug! ("Waiting for end server to connect");
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let end_server_conn = incoming.next ().await.ok_or_else (|| anyhow::anyhow! ("No end server connection"))?;
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let end_server_conn = end_server_conn.await?;
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let quinn::NewConnection {
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connection: end_server_conn,
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..
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} = end_server_conn;
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debug! ("Waiting for client to connect");
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let client_conn = incoming.next ().await.ok_or_else (|| anyhow::anyhow! ("No client connection"))?;
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let client_conn = client_conn.await?;
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let quinn::NewConnection {
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connection: _client_conn,
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bi_streams: mut client_incoming_bi_streams,
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..
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} = client_conn;
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debug! ("Waiting for client to open bi stream");
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let (client_send, client_recv) = client_incoming_bi_streams.next ().await.ok_or_else (|| anyhow::anyhow! ("Client didn't open a bi stream"))??;
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debug! ("Opening bi stream to the end server");
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let (server_send, server_recv) = end_server_conn.open_bi ().await?;
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debug! ("Relaying bytes...");
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let ptth_conn = PtthNewConnection {
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client_send,
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client_recv,
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server_send,
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server_recv,
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}.build ();
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ptth_conn.uplink_task.await??;
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ptth_conn.downlink_task.await??;
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Ok (())
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}
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struct PtthNewConnection {
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client_send: quinn::SendStream,
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client_recv: quinn::RecvStream,
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server_send: quinn::SendStream,
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server_recv: quinn::RecvStream,
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}
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struct PtthConnection {
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uplink_task: JoinHandle <anyhow::Result <()>>,
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downlink_task: JoinHandle <anyhow::Result <()>>,
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}
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impl PtthNewConnection {
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fn build (self) -> PtthConnection {
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let Self {
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mut client_send,
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mut client_recv,
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mut server_send,
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mut server_recv,
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} = self;
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let uplink_task = tokio::spawn (async move {
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// Uplink - Client to end server
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let mut buf = vec! [0u8; 65_536];
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while let Some (bytes_read) = client_recv.read (&mut buf).await? {
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let buf_slice = &buf [0..bytes_read];
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server_send.write_all (buf_slice).await?;
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}
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debug! ("Uplink closed");
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Ok::<_, anyhow::Error> (())
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});
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let downlink_task = tokio::spawn (async move {
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// Downlink - End server to client
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let mut buf = vec! [0u8; 65_536];
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while let Some (bytes_read) = server_recv.read (&mut buf).await? {
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let buf_slice = &buf [0..bytes_read];
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client_send.write_all (buf_slice).await?;
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}
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debug! ("Downlink closed");
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Ok::<_, anyhow::Error> (())
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});
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PtthConnection {
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uplink_task,
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downlink_task,
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}
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}
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}
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