141 lines
4.2 KiB
Lua
141 lines
4.2 KiB
Lua
-- Scripts pour tester le sniffer de smartphone qui essaient de se connecter sur des AP WIFI
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-- source: https://nodemcu.readthedocs.io/en/dev/modules/wifi/#wifieventmonregister
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print("\n b.lua zf191030.2052 \n")
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ztrig_rssi=-70
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--f= "set_time.lua" if file.exists(f) then dofile(f) end
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-- apzuzu6 38:2c:4a:4e:d3:d8
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--zadrs, zname, zrssi, ztime0, ztime1
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zmac_adrs={}
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zmac_adrs[#zmac_adrs+1]="b8:d7:af:a6:bd:86,S7 zf,0,0,0"
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zmac_adrs[#zmac_adrs+1]="cc:c0:79:7d:f5:d5,S7 Melanie,0,0,0"
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zmac_adrs[#zmac_adrs+1]="5c:f9:38:a1:f7:f0,MAC zf,0,0,0"
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zmac_adrs[#zmac_adrs+1]="d8:30:62:5a:d6:3a,IMAC Maman,0,0,0"
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zmac_adrs[#zmac_adrs+1]="88:e9:fe:6b:ec:1e,MAC Luc,0,0,0"
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zmac_adrs[#zmac_adrs+1]="0c:2c:54:b3:c5:1a,HU Nicolas,0,0,0"
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zmac_adrs[#zmac_adrs+1]="c0:a6:00:bf:4e:43,IPHONE Maeva,0,0,0"
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function zshow()
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for i=1, #zmac_adrs do
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-- print(i,zmac_adrs[i])
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zadrs, zname, zrssi, ztime0, ztime1 = zmac_adrs[i]:match("([^,]+),([^,]+),([^,]+),([^,]+),([^,]+)")
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if tonumber(zrssi) < 0 then
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ztx = i.."-"..zadrs..", "..zname..", "..zrssi..", "..zround(zcalc_distance(zrssi),1).."m, "
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ztx = ztx..ztime_format(ztime_uncompress(ztime0))..", "..ztime_format(ztime_uncompress(ztime1))
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print(ztx)
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ztx = nil
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end
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end
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end
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function zsplit(zline)
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zadrs, zname, zrssi, ztime0, ztime1 = zline:match("([^,]+),([^,]+),([^,]+),([^,]+),([^,]+)")
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-- print("-", zadrs, zname, zrssi, ztime0, ztime1,"-")
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end
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function zmerge()
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zline=zadrs..","..zname..","..zrssi..","..ztime0..","..ztime1
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return zline
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end
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function find_adrs(zadrs)
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for i=1, #zmac_adrs do
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if zadrs == zmac_adrs[i]:match("([^,]+),[^,]+,[^,]+,[^,]+,[^,]+") then
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-- print("find: "..zmac_adrs[i])
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return i
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end
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end
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return 1-1
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end
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function zsort_rssi()
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print("tri du tableau")
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table.sort(zmac_adrs, function(a,b)
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return a:match("[^,]+,[^,]+,([^,]+),[^,]+,[^,]+") < b:match("[^,]+,[^,]+,([^,]+),[^,]+,[^,]+")
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end)
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end
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function zround(num, dec)
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local mult = 10^(dec or 0)
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return math.floor(num * mult + 0.5) / mult
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end
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function zsniff(T)
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print("toto1950: "..T.RSSI)
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if T.RSSI > ztrig_rssi then
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print("\n\tMAC: ".. T.MAC.."\n\tRSSI: "..T.RSSI)
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-- n'existe plus zf191030.1406 ztime()
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z_adrs_mac_index=find_adrs(T.MAC)
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print("toto: -"..z_adrs_mac_index.."-")
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if z_adrs_mac_index == 0 then
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print("Oh une inconnue !")
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zmac_adrs[#zmac_adrs+1]=" , ,0,0,0"
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z_adrs_mac_index=#zmac_adrs
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-- print("tutu: -"..zmac_adrs[z_adrs_mac_index].."-")
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zsplit(zmac_adrs[z_adrs_mac_index])
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zadrs=T.MAC
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else
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-- print("titi: -")
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zsplit(zmac_adrs[z_adrs_mac_index])
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end
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-- zmac_adrs[T.MAC]["ztime"]=string.format("%04d/%02d/%02d %02d:%02d:%02d", tm["year"], tm["mon"], tm["day"], tm["hour"], tm["min"], tm["sec"])
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if tonumber(ztime0) == 0 then
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ztime0 = ztime_compress(rtctime.get())
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else
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if ztime_uncompress(ztime0) < ztime2019 then
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ztime0 = ztime_compress(rtctime.get())
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end
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end
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ztime1 = ztime_compress(rtctime.get())
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zrssi=T.RSSI
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--[[
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if zrssi == 0 then
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zrssi=T.RSSI
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else
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zrssi=zround((4*zrssi+T.RSSI)/5, 0)
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end
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]]
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if zname ~= " " then
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print("Bonjour "..zname.." ! "..zrssi)
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end
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zmac_adrs[z_adrs_mac_index]=zmerge()
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end
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end
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function zcalc_distance(zrssi2)
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zrssi_1m=-40 zn=2
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zdist=10^((zrssi_1m - zrssi2) / (10 * zn))
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return zdist
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end
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--[[
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print("distance: "..zcalc_distance(-60).."m")
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La formule pour calculer la distance est assez simple.
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d = 10 ^ ((TxPower - RSSI) / (10 * n))
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- TxPower est le RSSI mesuré à 1 m d'un point d'accès connu. Par exemple: -84 dB.
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- n est la constante de propagation ou l'exposant d'affaiblissement de trajet. Par exemple: 2,7 à 4,3 (l'espace libre a n = 2 pour référence).
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- RSSI est le RSSI mesuré
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- d est la distance en mètre
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]]
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wifi.eventmon.register(wifi.eventmon.AP_PROBEREQRECVED, zsniff)
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--[[
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wifi.eventmon.unregister(wifi.eventmon.AP_PROBEREQRECVED)
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zsort_rssi() zshow()
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]]
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