使用python套接字獲取udp數據包的流量類別

Question

我想使用python套接字檢索udp數據包的流量類別（TOS）。 以下代碼在python中創建套接字，而我想檢索類似於（java套接字中的getTrafficClass方法）的流量類。

 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

我認為在Java中沒有像getTrafficClass()這樣的就緒方法。 您可以讀取IP層標頭（位於UDP層標頭下方）並進行解析，示例代碼位於Sniffy.py https://github.com/OffensivePython/Sniffy/blob/master/Sniffy.py或https：// codingsec.net/2016/05/decoding-ip-layer-python/

[...]
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()
[...]