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rework and cleanup

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This commit is contained in:
Alex Zenla
2024-07-25 05:36:48 -07:00
parent 2c868ce0ca
commit c9783dc244
7 changed files with 3758 additions and 108 deletions
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27
crates/daemon/src/idm.rs
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@ -139,34 +139,49 @@ impl DaemonIdm {
data: Option<Vec<u8>>,
buffers: &mut HashMap<u32, BytesMut>,
) -> Result<()> {
// check if data is present, if it is not, that signals a closed channel.
if let Some(data) = data {
let buffer = buffers.entry(domid).or_insert_with_key(|_| BytesMut::new());
buffer.extend_from_slice(&data);
loop {
// check if the buffer is less than the header size, if so, wait for more data
if buffer.len() < 6 {
break;
}
// check for the magic bytes 0xff, 0xff at the start of the message, if that doesn't
// exist, clear the buffer. this ensures that partial messages won't be processed.
if buffer[0] != 0xff || buffer[1] != 0xff {
buffer.clear();
break;
return Ok(());
}
let size = (buffer[2] as u32 | (buffer[3] as u32) << 8 | (buffer[4] as u32) << 16 | (buffer[5] as u32) << 24) as usize;
// read the size from the buffer as a little endian u32
let size = (buffer[2] as u32
| (buffer[3] as u32) << 8
| (buffer[4] as u32) << 16
| (buffer[5] as u32) << 24) as usize;
let needed = size + 6;
if buffer.len() < needed {
break;
return Ok(());
}
let mut packet = buffer.split_to(needed);
// advance the buffer by the header, leaving only the raw data.
packet.advance(6);
match IdmTransportPacket::decode(packet) {
Ok(packet) => {
let _ = client_or_create(domid, &self.tx_sender, &self.clients, &self.feeds).await?;
let _ =
client_or_create(domid, &self.tx_sender, &self.clients, &self.feeds)
.await?;
let guard = self.feeds.lock().await;
if let Some(feed) = guard.get(&domid) {
let _ = feed.try_send(packet.clone());
}
let _ = self.snoop_sender.send(DaemonIdmSnoopPacket { from: domid, to: 0, packet });
let _ = self.snoop_sender.send(DaemonIdmSnoopPacket {
from: domid,
to: 0,
packet,
});
}
Err(packet) => {
@ -187,8 +202,10 @@ impl DaemonIdm {
let data = packet.encode_to_vec();
let mut buffer = vec![0u8; 6];
let length = data.len() as u32;
// magic bytes
buffer[0] = 0xff;
buffer[1] = 0xff;
// little endian u32 for message size
buffer[2] = length as u8;
buffer[3] = (length << 8) as u8;
buffer[4] = (length << 16) as u8;