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Deregister handshake properly when converting to session

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This commit is contained in:
arkpar 2016-02-19 22:09:06 +01:00
parent b66f88181a
commit 69df91de68
3 changed files with 45 additions and 23 deletions
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29
util/src/network/connection.rs
View File

@ -175,6 +175,18 @@ impl Connection {
self.socket.peer_addr()
}
pub fn try_clone(&self) -> io::Result<Self> {
Ok(Connection {
token: self.token,
socket: try!(self.socket.try_clone()),
rec_buf: Vec::new(),
rec_size: 0,
send_queue: VecDeque::new(),
interest: EventSet::hup() | EventSet::readable(),
stats: self.stats.clone(),
})
}
/// Register this connection with the IO event loop.
pub fn register_socket<Host: Handler>(&self, reg: Token, event_loop: &mut EventLoop<Host>) -> io::Result<()> {
trace!(target: "net", "connection register; token={:?}", reg);
@ -265,7 +277,7 @@ impl EncryptedConnection {
}
/// Create an encrypted connection out of the handshake. Consumes a handshake object.
pub fn new(mut handshake: Handshake) -> Result<EncryptedConnection, UtilError> {
pub fn new(handshake: &mut Handshake) -> Result<EncryptedConnection, UtilError> {
let shared = try!(crypto::ecdh::agree(handshake.ecdhe.secret(), &handshake.remote_public));
let mut nonce_material = H512::new();
if handshake.originated {
@ -300,9 +312,8 @@ impl EncryptedConnection {
ingress_mac.update(&mac_material);
ingress_mac.update(if handshake.originated { &handshake.ack_cipher } else { &handshake.auth_cipher });
handshake.connection.expect(ENCRYPTED_HEADER_LEN);
Ok(EncryptedConnection {
connection: handshake.connection,
let mut enc = EncryptedConnection {
connection: try!(handshake.connection.try_clone()),
encoder: encoder,
decoder: decoder,
mac_encoder: mac_encoder,
@ -311,7 +322,9 @@ impl EncryptedConnection {
read_state: EncryptedConnectionState::Header,
protocol_id: 0,
payload_len: 0
})
};
enc.connection.expect(ENCRYPTED_HEADER_LEN);
Ok(enc)
}
/// Send a packet
@ -440,6 +453,12 @@ impl EncryptedConnection {
Ok(())
}
/// Register socket with the event lpop. This should be called at the end of the event loop.
pub fn register_socket<Host:Handler>(&self, reg: Token, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
try!(self.connection.register_socket(reg, event_loop));
Ok(())
}
/// Update connection registration. This should be called at the end of the event loop.
pub fn update_socket<Host:Handler>(&self, reg: Token, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
try!(self.connection.update_socket(reg, event_loop));

25
util/src/network/host.rs
View File

@ -544,7 +544,7 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
if let Some(handshake) = handshake {
let mut h = handshake.lock().unwrap();
if let Err(e) = h.writable(io, &self.info.read().unwrap()) {
debug!(target: "net", "Handshake write error: {}:{:?}", token, e);
trace!(target: "net", "Handshake write error: {}: {:?}", token, e);
}
}
}
@ -554,7 +554,7 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
if let Some(session) = session {
let mut s = session.lock().unwrap();
if let Err(e) = s.writable(io, &self.info.read().unwrap()) {
debug!(target: "net", "Session write error: {}:{:?}", token, e);
trace!(target: "net", "Session write error: {}: {:?}", token, e);
}
io.update_registration(token).unwrap_or_else(|e| debug!(target: "net", "Session registration error: {:?}", e));
}
@ -583,7 +583,7 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
return;
} else if create_session {
self.start_session(token, io);
io.update_registration(token).unwrap_or_else(|e| debug!(target: "net", "Session registration error: {:?}", e));
return;
}
io.update_registration(token).unwrap_or_else(|e| debug!(target: "net", "Token registration error: {:?}", e));
}
@ -642,16 +642,9 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
// turn a handshake into a session
let mut sessions = self.sessions.write().unwrap();
let mut h = handshakes.remove(token).unwrap();
// wait for other threads to stop using it
{
while Arc::get_mut(&mut h).is_none() {
h.lock().ok();
}
}
let h = Arc::try_unwrap(h).ok().unwrap().into_inner().unwrap();
let mut h = handshakes.get_mut(token).unwrap().lock().unwrap();
let originated = h.originated;
let mut session = match Session::new(h, &self.info.read().unwrap()) {
let mut session = match Session::new(&mut h, &self.info.read().unwrap()) {
Ok(s) => s,
Err(e) => {
debug!("Session creation error: {:?}", e);
@ -660,7 +653,8 @@ impl<Message> Host<Message> where Message: Send + Sync + Clone {
};
let result = sessions.insert_with(move |session_token| {
session.set_token(session_token);
io.update_registration(session_token).expect("Error updating session registration");
io.deregister_stream(token).expect("Error deleting handshake registration");
io.register_stream(session_token).expect("Error creating session registration");
self.stats.inc_sessions();
if !originated {
// Add it no node table
@ -872,7 +866,10 @@ impl<Message> IoHandler<NetworkIoMessage<Message>> for Host<Message> where Messa
fn register_stream(&self, stream: StreamToken, reg: Token, event_loop: &mut EventLoop<IoManager<NetworkIoMessage<Message>>>) {
match stream {
FIRST_SESSION ... LAST_SESSION => {
warn!("Unexpected session stream registration");
let session = { self.sessions.read().unwrap().get(stream).cloned() };
if let Some(session) = session {
session.lock().unwrap().register_socket(reg, event_loop).expect("Error registering socket");
}
}
FIRST_HANDSHAKE ... LAST_HANDSHAKE => {
let connection = { self.handshakes.read().unwrap().get(stream).cloned() };

10
util/src/network/session.rs
View File

@ -109,8 +109,8 @@ const PACKET_USER: u8 = 0x10;
const PACKET_LAST: u8 = 0x7f;
impl Session {
/// Create a new session out of comepleted handshake. Consumes handshake object.
pub fn new(h: Handshake, host: &HostInfo) -> Result<Session, UtilError> {
/// Create a new session out of comepleted handshake.
pub fn new(h: &mut Handshake, host: &HostInfo) -> Result<Session, UtilError> {
let id = h.id.clone();
let connection = try!(EncryptedConnection::new(h));
let mut session = Session {
@ -169,6 +169,12 @@ impl Session {
self.info.capabilities.iter().any(|c| c.protocol == protocol)
}
/// Register the session socket with the event loop
pub fn register_socket<Host:Handler<Timeout=Token>>(&self, reg: Token, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
try!(self.connection.register_socket(reg, event_loop));
Ok(())
}
/// Update registration with the event loop. Should be called at the end of the IO handler.
pub fn update_socket<Host:Handler>(&self, reg:Token, event_loop: &mut EventLoop<Host>) -> Result<(), UtilError> {
self.connection.update_socket(reg, event_loop)