Interworking: Init scard when a credential requires SIM access

When an ANQP fetch is triggered and ANQP_3GPP_CELLULAR_NETWORK info is
required, initialize scard to be ready when comparing ANQP and
credentials.

Signed-off-by: Jean Trivelly <jean.trivelly@intel.com>

wpa_supplicant/events.c

@@ -303,11 +303,11 @@ int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 #ifdef PCSC_FUNCS
 	int aka = 0, sim = 0;
 
-	if (ssid->eap.pcsc == NULL || wpa_s->scard != NULL ||
-	    wpa_s->conf->external_sim)
+	if ((ssid != NULL && ssid->eap.pcsc == NULL) ||
+	    wpa_s->scard != NULL || wpa_s->conf->external_sim)
 		return 0;
 
-	if (ssid->eap.eap_methods == NULL) {
+	if (ssid == NULL || ssid->eap.eap_methods == NULL) {
 		sim = 1;
 		aka = 1;
 	} else {

wpa_supplicant/interworking.c

@@ -260,8 +260,10 @@ static int interworking_anqp_send_req(struct wpa_supplicant *wpa_s,
 		info_ids[num_info_ids++] = ANQP_IP_ADDR_TYPE_AVAILABILITY;
 	if (all || cred_with_nai_realm(wpa_s))
 		info_ids[num_info_ids++] = ANQP_NAI_REALM;
-	if (all || cred_with_3gpp(wpa_s))
+	if (all || cred_with_3gpp(wpa_s)) {
 		info_ids[num_info_ids++] = ANQP_3GPP_CELLULAR_NETWORK;
+		wpa_supplicant_scard_init(wpa_s, NULL);
+	}
 	if (all || cred_with_domain(wpa_s))
 		info_ids[num_info_ids++] = ANQP_DOMAIN_NAME;
 	wpa_hexdump(MSG_DEBUG, "Interworking: ANQP Query info",