HS 2.0: Add support to update the HS20 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

@@ -94,6 +94,7 @@ static struct wpa_bss_anqp * wpa_bss_anqp_clone(struct wpa_bss_anqp *anqp)
 	ANQP_DUP(domain_name);
 #endif /* CONFIG_INTERWORKING */
 #ifdef CONFIG_HS20
+	ANQP_DUP(hs20_capability_list);
 	ANQP_DUP(hs20_operator_friendly_name);
 	ANQP_DUP(hs20_wan_metrics);
 	ANQP_DUP(hs20_connection_capability);
@@ -163,6 +164,7 @@ static void wpa_bss_anqp_free(struct wpa_bss_anqp *anqp)
 	wpabuf_free(anqp->domain_name);
 #endif /* CONFIG_INTERWORKING */
 #ifdef CONFIG_HS20
+	wpabuf_free(anqp->hs20_capability_list);
 	wpabuf_free(anqp->hs20_operator_friendly_name);
 	wpabuf_free(anqp->hs20_wan_metrics);
 	wpabuf_free(anqp->hs20_connection_capability);

wpa_supplicant/bss.h

@@ -35,6 +35,7 @@ struct wpa_bss_anqp {
 	struct wpabuf *domain_name;
 #endif /* CONFIG_INTERWORKING */
 #ifdef CONFIG_HS20
+	struct wpabuf *hs20_capability_list;
 	struct wpabuf *hs20_operator_friendly_name;
 	struct wpabuf *hs20_wan_metrics;
 	struct wpabuf *hs20_connection_capability;

wpa_supplicant/ctrl_iface.c

@@ -4190,6 +4190,8 @@ static int print_bss_info(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
 		pos = anqp_add_hex(pos, end, "anqp_domain_name",
 				   anqp->domain_name);
 #ifdef CONFIG_HS20
+		pos = anqp_add_hex(pos, end, "hs20_capability_list",
+				   anqp->hs20_capability_list);
 		pos = anqp_add_hex(pos, end, "hs20_operator_friendly_name",
 				   anqp->hs20_operator_friendly_name);
 		pos = anqp_add_hex(pos, end, "hs20_wan_metrics",

wpa_supplicant/hs20_supplicant.c

@@ -380,6 +380,11 @@ void hs20_parse_rx_hs20_anqp_resp(struct wpa_supplicant *wpa_s,
 		wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR
 			" HS Capability List", MAC2STR(sa));
 		wpa_hexdump_ascii(MSG_DEBUG, "HS Capability List", pos, slen);
+		if (anqp) {
+			wpabuf_free(anqp->hs20_capability_list);
+			anqp->hs20_capability_list =
+				wpabuf_alloc_copy(pos, slen);
+		}
 		break;
 	case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
 		wpa_msg(wpa_s, MSG_INFO, "RX-HS20-ANQP " MACSTR