show base interface for WiFi 4addr interfaces

src/ubus.c

@@ -29,6 +29,7 @@
 
 #include <easy/easy.h>
 
+#include "wifi_api.h"
 #include "util.h"
 #include "debug.h"
 #include "timer.h"
@@ -736,6 +737,14 @@ int hostmngr_ubus_show_hosts(struct ubus_context *ctx, struct ubus_object *obj,
 				blobmsg_add_string(&bb, "device", e->ifname);
 				ifname = e->ifname;
 			}
+
+			if (is_wifi_interface(ifname) == 1) {
+				char pifname[16] = {0};
+
+				interface_get_4addr_parent(ifname, pifname);
+				blobmsg_add_string(&bb, "parent_device", pifname);
+			}
+
 			net = hostmngr_ifname_to_network(p, ifname);
 			blobmsg_add_string(&bb, "network", net ? net : "");
 

src/wifi_api.c

@@ -65,6 +65,9 @@ int is_wifi_interface(const char *ifname)
 	char rpath[PATH_MAX] = {0};
 	struct stat s;
 
+	if (!ifname)
+		return 0;
+
 	memset(&s, 0, sizeof(struct stat));
 	snprintf(path, 512, "/sys/class/net/%s/phy80211", ifname);
 	if (!realpath(path, rpath))
@@ -90,6 +93,9 @@ int is_ap_interface(const char *ifname)
 	enum wifi_mode mode;
 	int ret;
 
+	if (!ifname)
+		return 0;
+
 	ret = wifi_get_mode(ifname, &mode);
 	if (!ret) {
 		if (mode == WIFI_MODE_AP || mode == WIFI_MODE_AP_VLAN)