802.11 packet reassembly

[razgino11]

Platform

• Hardware: ESP-12e
• Core Version: Latest
• Development Env: Platformio
• Operating System: Windows

Settings in IDE

• Module: Generic ESP8266 Module
• Flash Size: 1MB
• lwip Variant: Higher Bandwidth
• Upload Using: SERIAL
• Upload Speed: 115200

Problem Description

I am attempting to capture a 802.11n packet stream from an iot device,
I was noticing im losing most of the packets, and after analyzing them i figured im losing all of the packets which are fragmented on the 802.11 layer (layer 2)

I have found information online on enabling layer 3 fragmanation and udp fragmanation, but nothing on the 802.11 fragmantation

I would love it if you can point me in the right direction

[d-a-v]

Radio link layer details are out of reach from the API provided by the nonos-sdk firmware that we are using.
I assume you checked nonos-sdk and rtos-sdk documentation.
As nonos-sdk is now unsupported by espressif, you may try first with the rtos-sdk before asking them. Platformio can make use of it.

[razgino11]

Radio link layer details are out of reach from the API provided by the nonos-sdk firmware that we are using. I assume you checked nonos-sdk and rtos-sdk documentation. As nonos-sdk is now unsupported by espressif, you may try first with the rtos-sdk before asking them. Platformio can make use of it.

Thank you for the fast response!
Yes i have tried and wrote the app on both arduino (which uses the no os sdk) and with the rtos in cpp, both version have this problem :(

[d-a-v]

Did you ask on their repository ?

[razgino11]

Did you ask on their repository ?

Hey, not yet, ill open an issue there as well, in the mean time any advice on how i may attempt to fix this myself? also checked on the esp32 and has the same issue

[d-a-v]

The radio fw is closed-source. Unless being able to disassemble and debug their code, I can't think of anything helpful.