Setting WiFi on Linux platforms using wpa_supplicant vs connmanctl?

Question

I have observed some linux distribution have /etc/wpa_supplicant/wpa_supplicant.conf which can be configured to setup WiFi.

On the other hand some distributions have connmanctl utility/tool. Where we have /var/lib/connman/<SSID>-psk.config file.

Can someone explain the difference between these two and who exactly uses these files to make wifi work?

Answer 1

connman is a network configuration tool such as wicd, netctl or NetworkManager.

wpasupplicant is a supplicant that allows wpa authentication (and more) even with connmanctl.