Finding SSIDs

To get the SSID, we need to update the previous recipe and parse the SSID from the packets.

How to do it...

Following are the steps to write a SSID sniffer script with scapy module:

1. Create a sniff-ssid.py file and open it in your editor.
2. Import the module required:

from scapy.all import *   

3. Now create a function to parse the SSID from the packet:

def parseSSID(pkt):
    if pkt.haslayer(Dot11):
        print(pkt.show())
        if pkt.type == 0 and pkt.subtype == 8:
                ap_list.append(pkt.addr2)
                print("SSID:" + pkt.info)

4. Now run the sniff and call the parse function on the callback.

sniff(iface='en0', prn=ssid, count=10, timeout=3, store=0)  

5. Now run this...