Method send

src/network.js:355–372

(payload, proto)

    // Called internally when we want to send a frame TO the VM
    send(payload, proto) {
        if (!this.vmMac) return; 
        
        const frame = Buffer.alloc(14 + payload.length);
        this.vmMac.copy(frame, 0); 
        this.gatewayMac.copy(frame, 6); 
        frame.writeUInt16BE(proto, 12);
        payload.copy(frame, 14);
        
        // Wrap in QEMU framing
        const header = Buffer.alloc(4);
        header.writeUInt32BE(frame.length, 0);
        
        this.txBuffer = Buffer.concat([this.txBuffer, header, frame]);
        
        this.emit('tx', frame); // For testing/debug
        this.emit('network-activity'); // Notify worker to wake up poll
    }
    
    // Send to broadcast MAC (for DHCP etc)
    sendBroadcast(payload, proto) {