Small script to show a list of active WiFi devices on Asus routers

find_devices.py

import subprocess
import sys
import time

des = sys.argv[1]

def call(cmd):
    process = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)

    # wait for the process to terminate
    out, err = process.communicate()
    errcode = process.returncode
    return (errcode, out)

mac_present = []
err, out = call("ssh %s wl -i eth2 assoclist" % des)
if err == 0:
    for line in out.split('\n')[:-1]:
        mac_present.append(line.split(' ')[1])
else:
    print "Error", out

time.sleep(1) # Avoid SSH bruteforce detection
err, out = call("ssh %s arp" % des)
if err == 0:
    for device_name in out.split('\n')[:-1]:
        for mac in mac_present:
            if mac in device_name:
                print device_name
else:
    print "Error", out