Add an overload of WiFi.begin to support specifying a WPA2 EAP-TTLS phase 2 method

[semicolonTransistor]

Related area

WiFi

Hardware specification

All WiFi capbale SoCs

Is your feature request related to a problem?

The WiFi.begin() overload for WPA2-Enterprise added in #6398 seems to default to either MSCHAPV2 or MSCHAP as the phase 2 method for EAP-TTLS. There is no parameter to change the TTLS phase 2 method. However, my university network requires using PAP as the phase 2 method. Currently, I am working around this by calling esp_wifi_sta_wpa2_ent_set_ttls_phase2_method(ESP_EAP_TTLS_PHASE2_PAP); before calling WiFi.begin(...)

I believe similar problems have been reported in #6427 and #5483.

Describe the solution you'd like

It would be nice if an overload of WiFi.begin() can be added that accepts a esp_eap_ttls_phase2_types as a parameter so the user can select which TTLS phase 2 method they would like to use.

Alternatively, WiFi.begin() could try all available phase 2 options for TTLS. Which could make it easier to use and more "plug and play". Although I am not sure if that is a good idea since I have very limited knowledge of WPA2-Enterprise.

Describe alternatives you've considered

I have used the following workaround to connect to my school network

  esp_wifi_sta_wpa2_ent_set_ttls_phase2_method(ESP_EAP_TTLS_PHASE2_PAP);
  WiFi.begin(ssid, WPA2_AUTH_TTLS, EAP_IDENTITY, EAP_USERNAME, EAP_PASSWORD);

This works although it took considerable research to find. I think the WiFi library would be more user-friendly if the option is available in WiFi.begin() and didn't require a separate call to an ESP-IDF function.

Additional context

No response

I have checked existing list of Feature requests and the Contribution Guide

• I confirm I have checked existing list of Feature requests and Contribution Guide.

[SuGlider]

@semicolonTransistor
It sounds to be a nice feature.
Let's consider it for the next release 2.0.8 or 3.0.0.
Thanks for the contribution.

[VojtechBartoska]

Possibly relates to #8760.

Lets evaluate this and set up the milestone.