Inteworking: Add support to update the ANQP Capability List into the BSS

In addition, add support for returning the capability list through
the BSS control interface command.

Signed-off-by: ASHUTOSH NARAYAN <ashutoshx.narayan@intel.com>

wpa_supplicant/bss.c

@@ -85,6 +85,7 @@ static struct wpa_bss_anqp * wpa_bss_anqp_clone(struct wpa_bss_anqp *anqp)
 
 #define ANQP_DUP(f) if (anqp->f) n->f = wpabuf_dup(anqp->f)
 #ifdef CONFIG_INTERWORKING
+	ANQP_DUP(capability_list);
 	ANQP_DUP(venue_name);
 	ANQP_DUP(network_auth_type);
 	ANQP_DUP(roaming_consortium);
@@ -155,6 +156,7 @@ static void wpa_bss_anqp_free(struct wpa_bss_anqp *anqp)
 	}
 
 #ifdef CONFIG_INTERWORKING
+	wpabuf_free(anqp->capability_list);
 	wpabuf_free(anqp->venue_name);
 	wpabuf_free(anqp->network_auth_type);
 	wpabuf_free(anqp->roaming_consortium);

wpa_supplicant/bss.h

@@ -26,6 +26,7 @@ struct wpa_bss_anqp {
 	/** Number of BSS entries referring to this ANQP data instance */
 	unsigned int users;
 #ifdef CONFIG_INTERWORKING
+	struct wpabuf *capability_list;
 	struct wpabuf *venue_name;
 	struct wpabuf *network_auth_type;
 	struct wpabuf *roaming_consortium;

wpa_supplicant/ctrl_iface.c

@@ -4176,6 +4176,8 @@ static int print_bss_info(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
 #ifdef CONFIG_INTERWORKING
 	if ((mask & WPA_BSS_MASK_INTERNETW) && bss->anqp) {
 		struct wpa_bss_anqp *anqp = bss->anqp;
+		pos = anqp_add_hex(pos, end, "anqp_capability_list",
+				   anqp->capability_list);
 		pos = anqp_add_hex(pos, end, "anqp_venue_name",
 				   anqp->venue_name);
 		pos = anqp_add_hex(pos, end, "anqp_network_auth_type",

wpa_supplicant/interworking.c

@@ -2728,6 +2728,12 @@ static void interworking_parse_rx_anqp_resp(struct wpa_supplicant *wpa_s,
 	case ANQP_CAPABILITY_LIST:
 		wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR
 			" ANQP Capability list", MAC2STR(sa));
+		wpa_hexdump_ascii(MSG_DEBUG, "ANQP: Capability list",
+				  pos, slen);
+		if (anqp) {
+			wpabuf_free(anqp->capability_list);
+			anqp->capability_list = wpabuf_alloc_copy(pos, slen);
+		}
 		break;
 	case ANQP_VENUE_NAME:
 		wpa_msg(wpa_s, MSG_INFO, "RX-ANQP " MACSTR