Method HandleData

quic.go:258–293

HandleData handles handshake bytes received from the peer. It may produce connection events, which may be read with [QUICConn.NextEvent].

(level QUICEncryptionLevel, data []byte)

// HandleData handles handshake bytes received from the peer.
// It may produce connection events, which may be read with [QUICConn.NextEvent].
func (q *QUICConn) HandleData(level QUICEncryptionLevel, data []byte) error {
	c := q.conn
	if c.in.level != level {
		return quicError(c.in.setErrorLocked(errors.New("tls: handshake data received at wrong level")))
	}
	c.quic.readbuf = data
	<-c.quic.signalc
	_, ok := <-c.quic.blockedc
	if ok {
		// The handshake goroutine is waiting for more data.
		return nil
	}
	// The handshake goroutine has exited.
	c.handshakeMutex.Lock()
	defer c.handshakeMutex.Unlock()
	c.hand.Write(c.quic.readbuf)
	c.quic.readbuf = nil
	for q.conn.hand.Len() >= 4 && q.conn.handshakeErr == nil {
		b := q.conn.hand.Bytes()
		n := int(b[1])<<16 | int(b[2])<<8 | int(b[3])
		if n > maxHandshake {
			q.conn.handshakeErr = fmt.Errorf("tls: handshake message of length %d bytes exceeds maximum of %d bytes", n, maxHandshake)
			break
		}
		if len(b) < 4+n {
			return nil
		}
		if err := q.conn.handlePostHandshakeMessage(); err != nil {
			q.conn.handshakeErr = err
		}
	}
	if q.conn.handshakeErr != nil {
		return quicError(q.conn.handshakeErr)
	}
	return nil
}

type QUICSessionTicketOptions struct {
	// EarlyData specifies whether the ticket may be used for 0-RTT.