使用python s获取udp数据包的流量类

Question

我想使用pythonsockets检索udp包的流量类（TOS）。下面的代码用python编写了这个socket，我想检索它的traffic类，类似于（javasockets中的getTrafficClass方法）。在

UDP_IP = '127.0.0.1' UDP_PORT = 8080 BUFFER_SIZE = 20 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) s.bind((UDP_IP, UDP_PORT)) data, address = s.recvfrom(BUFFER_SIZE) if data: print "received data:", data //I need to get the traffic class here.

Answer 1

我认为在java中没有类似getTrafficClass()的现成方法。您可以读取IP层头（UDP层头下面的一个）并解析它，示例代码在Sniffy.pyhttps://github.com/OffensivePython/Sniffy/blob/master/Sniffy.py或{a2}

[...]
def sniff(sock):
""" sniff a packet, parse its header and dump the sniffed data """
packet, address = sock.recvfrom(65565)
ipheader=ip(packet[:20])
ipheader.parse()
[...]