[TW#16750] esp_wifi_80211_tx function overwrites frame counter

[seppestas]

I originally reported this as a comment on issue #677.

The esp_wifi_80211_tx function seems to overwrite the frame counter of the frames sent using it, even if en_sys_seq is set to false.

When setting en_sys_seq to false the frame counter is always overwritten to 0. When setting en_sys_seq to true the frame counter follows the frame counter of frames sent by other components acting on WiFi (e.g AP beacons), but the frames sent by esp_wifi_80211_tx do not themselves cause the frame counter to increment. This happens both when WiFi was configured in AP and Station mode. Tested on ESP-IDF v2.1 and on the master branch (094e47f).

The old ieee80211_freedom_output function did not have this behaviour, allowing to send frames with arbitrary frame counter values.

[liuzfesp]

@seppestas esp_wifi_80211_tx will be optimized in v3.1

[seppestas]

@liuzfesp Any idea when v3.1 would become available? The milestones on GH do not seem to be very up to date...

We currently have 2 different firmwares, one based on ESP-IDF v2.0 to support the low level IEEE802.11 functionality we need and one where we have a BLE PoC for configuration. Merging both to a newer version of the ESP-IDF would be a lot easier (and future proof) than trying to backport the BLE functionality.