txscapy.py 文件源码

def TCPTraceroute(self, host):
        if host not in self.hosts:
            self.hosts.append(host)

        d = defer.Deferred()
        reactor.callLater(self.timeout, d.callback, self)

        for dst_port in self.dst_ports:
            self.sendPackets(
                IP(dst=host, ttl=(self.ttl_min, self.ttl_max), id=RandShort()) / TCP(flags=2L, dport=dst_port,
                                                                                     sport=RandShort(),
                                                                                     seq=RandShort()))
        return d