Reverse engineering ESP32 Wi-Fi driver: the road ahead
esp32-open-mac.be
Reverse engineering ESP32 Wi-Fi driver: the road ahead
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Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#2Very cool project. I think efforts like these are among the most promising to get a FOSS WiFi cards. Because these WiFi-capable MCUs are: designed to be generally programmable, have quite a lot of open documentation, are available for purchase in both small and large quantities, have s availability over long time-frames (10 years), can tap into the larger community knowledge-base. This is in contrast to the more specialized chips that dedicated WiFi cards use.
Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#3[dead]
Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#4I need _Bluetooth_ OBEX support on ESP32 and Espressif's standard lib doesn't provide it.
Is this project going to look at issues like these too?
Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#5I need _Bluetooth_ OBEX support on ESP32 and Espressif's standard lib doesn't provide it. Is this project going to look at issues like these too?
The BT stack is based on Bluedroid, so that’s open source (up to the driver I’d guess); see here https://github.com/espressif/esp-idf/tree/master/components/...
Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#6So this appears to be a clean reversing effort, for what - legal reasons?
Espressif Systems is a Chinese company and probably stole half the code in the firmware anyways. No one will blame you if you stick the stick the firmware in Ghidra.
Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#7So this appears to be a clean reversing effort, for what - legal reasons? Espressif Systems is a Chinese company and probably stole half the code in the firmware anyways. No one will blame you if you stick the stick the firmware in Ghidra.
The people they copied it from would.
Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#8So this appears to be a clean reversing effort, for what - legal reasons? Espressif Systems is a Chinese company and probably stole half the code in the firmware anyways. No one will blame you if you stick the stick the firmware in Ghidra.
If you got enough (wo)manpower you can also do a cleanroom RE using a decompiler - one team decompiles and writes documentation about how the chip works, the second team writes a driver based on that doc.
Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#9Very cool project. I think efforts like these are among the most promising to get a FOSS WiFi cards. Because these WiFi-capable MCUs are: designed to be generally programmable, have quite a lot of open documentation, are available for purchase in both small and large quantities, have s availability over long time-frames (10 years), can tap into the larger community knowledge-base. This is in contrast to the more spec…
What do you mean by FOSS Wi-Fi cards? Aren't there lots of open source drivers for Wi-Fi cards?
Re: Reverse engineering ESP32 Wi-Fi driver: the road ahead
#10So this appears to be a clean reversing effort, for what - legal reasons? Espressif Systems is a Chinese company and probably stole half the code in the firmware anyways. No one will blame you if you stick the stick the firmware in Ghidra.
>Espressif Systems is a Chinese company and probably stole half the code in the firmware anyways.
So if an entity is Chinese we are sure they are thiefs.