WLAN SSID Sniffer in Python using Scapy

ssid-sniffer-scapy-python.py

#!/usr/bin/env python

from scapy.all import *

ap_list = []

def PacketHandler(pkt) :

  if pkt.haslayer(Dot11) :
		if pkt.type == 0 and pkt.subtype == 8 :
			if pkt.addr2 not in ap_list :
				ap_list.append(pkt.addr2)
				print "AP MAC: %s with SSID: %s " %(pkt.addr2, pkt.info)


sniff(iface="mon0", prn = PacketHandler)

Hello,

I'am rather new by using python (lotst ofe experience with other languages). I bougth a raspberry and know tries to find out if I can use my Pi for notifying if a dedicated person is in the neighbouhood. I.e. by detecting Wifi, bluetooth or other specifc signal (also for automatic opening doors; get ligths on etc.)
I loaded the code and tried to run the application.
it just gave me the error it could not find scapy
--> I did install the scapy modules by PIP
What did probably go wrong?

Dick

Hello,

Thanks for this script, I'm using it for a personal project!

I don't know if it's currently obsolete or not, the if condition which tests the type and the subtype never returns positive value to me. So I changed if pkt.haslayer (Dot11): so that it becomes if pkt.haslayer (Dot11ProbeReq):

I was then able to delete the if type && subtype