怎么把网站黑了,大型电子商务网站建设方案,正规网站建设服务中心,网站建设和网络推广哪个难做我写了一个简单的网络流量监视器来获得B/s和/或总数据传输率(B)。然而#xff0c;当我用ftp(使用Total Commander)传输一个文件来测试它时#xff0c;我不能让它把Total transfer作为文件大小来衡量。它总是比实际尺寸小得多。我不确定我是不是做错了什么。。我设置的BPF过滤…我写了一个简单的网络流量监视器来获得B/s和/或总数据传输率(B)。然而当我用ftp(使用Total Commander)传输一个文件来测试它时我不能让它把Total transfer作为文件大小来衡量。它总是比实际尺寸小得多。我不确定我是不是做错了什么。。我设置的BPF过滤器是dst 下面是我的源代码import threadingimport sysimport pcapyimport timeimport logging as loggerclass NetMonitor(threading.Thread):_timeout 1classmethoddef get_net_interfaces(cls):return pcapy.findalldevs()def __init__(self, device, bpf_filter):threading.Thread.__init__(self)self.active Trueself._net_monitor pcapy.open_live(device, 65535, 0, 1000) #self.timeout * 1000)self._net_monitor.setfilter(bpf_filter)#self.dumper self.net_monitor.dump_open(pkt_dump.txt)self._current_bytes_rate 0self.total_transfer 0 # total number of Bytes transfered#self._tmp_bytes_per_sec_sum 0 # sums up B/s values from each dispatch iteration (eventually used to calc average value)self._inc 0 # number of dispatch iterations (eventually used to calc average B/s value)#---self._dispatch_bytes_sum 0 # sums up packets size for one dispatch calldef __handle_packet(self, header, data):# method is called for each packet by dispatch call (pcapy)self._dispatch_bytes_sum len(data) #header.getlen() #len(data)#logger.debug(h: ({}, {}, {}), d:{}.format(header.getlen(), header.getcaplen(), header.getts(), len(data)))#self.dumper.dump(header, data)def update(self):self._dispatch_bytes_sum 0# process packetspackets_nr self._net_monitor.dispatch(-1, self.__handle_packet)self.total_transfer self._dispatch_bytes_sumself._inc 1self._current_bytes_rate self._dispatch_bytes_sum # add single dispatch B/s - timeout is 1 sself._tmp_bytes_per_sec_sum self._current_bytes_ratelogger.debug(inc:{}, current rate: {} B/s, avg rate: {} B/s, total:{} B.format(self._inc, self.current_rate, self.avg_rate, self.total_transfer))return self._current_bytes_rate, packets_nrdef get_avg_bytes_rate(self):if self._inc:return self._tmp_bytes_per_sec_sum / self._incelse:return 0def get_current_bytes_rate(self):return self._current_bytes_ratedef run(self):while(self.active):self.update()time.sleep(self._timeout)# average B/s rateavg_rate property(get_avg_bytes_rate)# current B/s ratecurrent_rate property(get_current_bytes_rate)if __name__ __main__:filter .join(sys.argv[2:])print filter#nm0 NetMonitor(pcapy.findalldevs()[0], filter)nm1 NetMonitor(pcapy.findalldevs()[1], filter)nm1.start()start_time time.time()while time.time() - start_time int(sys.argv[1]):print current {} B/s, avg {} B/s, total transfer {} B.format(nm1.current_rate, nm1.avg_rate, nm1.total_transfer)time.sleep(1)nm1.active Falsenm1.join()print total: {}, avg: {}.format(nm1.total_transfer, nm1.avg_rate)任何建议都非常感谢。干杯。
