int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
const char *uuid, const char *pin);
int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid);
int wpas_wps_er_add_pin(struct wpa_supplicant *wpa_s, const u8 *addr,
const char *uuid, const char *pin);
int wpas_wps_er_pbc(struct wpa_supplicant *wpa_s, const char *uuid);