如何在沒有收到數據包的情況下告訴scapy sniff（）停止？

如何告訴scapy sniff（）函數在沒有收到數據包時停止？我使用sendp（）函數發送數據包示例：發送DHCP Discover時未發送響應。如何在沒有收到數據包的情況下告訴scapy sniff（）停止？

2013-10-24 yoyo

Scapy中的sniff()函數有一個超時參數。您可以在幾秒鐘內提供超時。

您可以通過打印sniff.__doc__找到其他選擇。

[email protected]:~$ scapy 
>>> print sniff.__doc__ 
Sniff packets 
sniff([count=0,] [prn=None,] [store=1,] [offline=None,] [lfilter=None,] + 
     L2ListenSocket args) -> list of packets 

    count: number of packets to capture. 0 means infinity 
    store: wether to store sniffed packets or discard them 
    prn: function to apply to each packet. If something is returned, 
     it is displayed. Ex: 
     ex: prn = lambda x: x.summary() 
lfilter: python function applied to each packet to determine 
     if further action may be done 
     ex: lfilter = lambda x: x.haslayer(Padding) 
offline: pcap file to read packets from, instead of sniffing them 
timeout: stop sniffing after a given time (default: None) 
L2socket: use the provided L2socket 
opened_socket: provide an object ready to use .recv() on 
stop_filter: python function applied to each packet to determine 
      if we have to stop the capture after this packet 
      ex: stop_filter = lambda x: x.haslayer(TCP)

來源

2013-10-24 16:26:28 RyPeck

是的，我知道超時時間，但我問自己是否有辦法阻止自己編程時間之後沒有任何事情發生。 – yoyo

據我所知，超時是你唯一的選擇。其他一切都需要接收數據包。 – RyPeck

是的，我認爲是經過一些研究後，謝謝^^ – yoyo

如何在沒有收到數據包的情況下告訴scapy sniff（）停止？

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