wpa_supplicant EAP-SIM and EAP-AKA auth methods

[BaoZhong ZHENG]

Hi, all

wpa_supplicant supports EAP-SIM and EAP-AKA, using winscard dll.

I am working on Android platform, due to there is no library which
encapsulates SIM card operations such as GSM auth and AKA auth interface, so
I want to change the SIM operations from sync API call to Async message
flow, I means when need to do GSM auth, wpa_supplicant sends one message to
some component which can trigger GSM auth operation, and it will response
the result to wpa_supplicant.

The current point is when I try to break eap_sim_process_challenge func
after send GSM Auth request and return, when results come, I do not find the
way into eap_sim_process_challenge func with GSM Auth results.

Does anyone have some ideas about it?

Thanks in advance
========
Baozhong
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