WIFI-SNIFFER EXAMPLE ON ESP SDK

bonchenko
Posts: 8
Joined: Wed May 13, 2015 12:09 pm

WIFI-SNIFFER EXAMPLE ON ESP SDK

Postby bonchenko » Tue May 19, 2015 6:01 pm

Hi, anybody tried the wifi-sniffer example on ESP SDK 0.9.5? I compiled and flashed the fw to my ESP-01 but I cannot see any packet being sniffed. This is the UART output,

Image

Also, after several minutes, it will behave strangely - wdt triggered but not restarted.

Anybody successful in trying this example? The code also seems correct according to SDK doc, it got sniffing rx callback that is supposed to be called when a packet is received/sniffed

ESP_Faye
Posts: 1641
Joined: Mon Oct 27, 2014 11:08 am

Re: WIFI-SNIFFER EXAMPLE ON ESP SDK

Postby ESP_Faye » Tue May 19, 2015 6:04 pm

Hi,

Here is a sniffer demo for the latest SDK_v1.0.1 ,please have a try.
Attachments
sniffer demo for SDKv1.0.1.zip
(2.65 KiB) Downloaded 1333 times

bonchenko
Posts: 8
Joined: Wed May 13, 2015 12:09 pm

Re: WIFI-SNIFFER EXAMPLE ON ESP SDK

Postby bonchenko » Wed May 20, 2015 4:06 pm

Hi there. I tried your code and use SDK v1.01, but still not entering the sniffer rx promiscuous callback. Then I change the mode to station mode, previously you use stationap mode ( wifi_set_opmode(STATION_MODE); ) and now I can get the packet :D :D

One more thing, can I get the IP adress and MAC address of the packet sender?

User avatar
nissimzur
Posts: 5
Joined: Mon Jun 15, 2015 1:53 pm

Re: WIFI-SNIFFER EXAMPLE ON ESP SDK

Postby nissimzur » Mon Jun 15, 2015 2:23 pm

I look for the MAC too. We hope that Espressif_Faye will see this and reply.
Bonchenko please call my Skype skype:nissim.test and we can share research and reply here results.
-Nissim
Kind regards,
Dr. Nissim Zur
Bluetooth Smart, IoT expert
CTO Elinistech

Linkedin http://lnkd.in/TTnsGz
Email nissim@vitelix.com
Skype:nissim.test
Image

ESP_Faye
Posts: 1641
Joined: Mon Oct 27, 2014 11:08 am

Re: WIFI-SNIFFER EXAMPLE ON ESP SDK

Postby ESP_Faye » Wed Jun 17, 2015 10:20 am

Hi,

IP address and MAC address of the packet sender can not be got in sniffer now.

Sorry for the inconvenience.

kissste
Posts: 1
Joined: Thu Jun 18, 2015 12:13 am

Re: WIFI-SNIFFER EXAMPLE ON ESP SDK

Postby kissste » Thu Jun 18, 2015 2:03 am

MAC Addresses are available in the MAC Header.

google: 802.11 packet format

Image

There are Address 1, 2 and 3 which are populated based on Frame Control - 'DS From'/'DS To' bits

User avatar
nissimzur
Posts: 5
Joined: Mon Jun 15, 2015 1:53 pm

Re: WIFI-SNIFFER EXAMPLE ON ESP SDK

Postby nissimzur » Thu Jun 18, 2015 2:18 pm

Did you mean that MAC address of the packet sender can be extracted from the sniffer demo ?

Espressif_Faye : if the sniffer demo can’t do it, which demo apps can do it ? (detection all MAC Smartphone, as station, around looking for gateway to connect)

…Without the sender MAC, all sniffer application is useless. The main idea of sniffer is to recognize “who is around” and what it send,index by MAC of course
Kind regards,
Dr. Nissim Zur
Bluetooth Smart, IoT expert
CTO Elinistech

Linkedin http://lnkd.in/TTnsGz
Email nissim@vitelix.com
Skype:nissim.test
Image

Who is online

Users browsing this forum: No registered users and 7 guests