hostapd: add additional ubus notifications

Signed-off-by: John Crispin <john@phrozen.org>

package/network/services/hostapd/patches/600-ubus_support.patch

@@ -156,7 +156,24 @@
  	/*
  	 * sta->capability is used in check_assoc_ies() for RRM enabled
  	 * capability element.
-@@ -3025,7 +3051,7 @@ int ieee802_11_mgmt(struct hostapd_data
+@@ -2688,6 +2714,7 @@ static void handle_disassoc(struct hosta
+ 	wpa_printf(MSG_DEBUG, "disassocation: STA=" MACSTR " reason_code=%d",
+ 		   MAC2STR(mgmt->sa),
+ 		   le_to_host16(mgmt->u.disassoc.reason_code));
++	hostapd_ubus_notify(hapd, "disassoc", mgmt->sa);
+ 
+ 	sta = ap_get_sta(hapd, mgmt->sa);
+ 	if (sta == NULL) {
+@@ -2742,6 +2769,8 @@ static void handle_deauth(struct hostapd
+ 		" reason_code=%d",
+ 		MAC2STR(mgmt->sa), le_to_host16(mgmt->u.deauth.reason_code));
+ 
++	hostapd_ubus_notify(hapd, "deauth", mgmt->sa);
++
+ 	sta = ap_get_sta(hapd, mgmt->sa);
+ 	if (sta == NULL) {
+ 		wpa_msg(hapd->msg_ctx, MSG_DEBUG, "Station " MACSTR " trying "
+@@ -3025,7 +3054,7 @@ int ieee802_11_mgmt(struct hostapd_data
  
  
  	if (stype == WLAN_FC_STYPE_PROBE_REQ) {
@@ -165,7 +182,7 @@
  		return 1;
  	}
  
-@@ -3043,17 +3069,17 @@ int ieee802_11_mgmt(struct hostapd_data
+@@ -3043,17 +3072,17 @@ int ieee802_11_mgmt(struct hostapd_data
  	switch (stype) {
  	case WLAN_FC_STYPE_AUTH:
  		wpa_printf(MSG_DEBUG, "mgmt::auth");
@@ -263,3 +280,31 @@
  #ifdef CONFIG_P2P
  	if (elems.p2p) {
  		wpabuf_free(sta->p2p_ie);
+--- a/src/ap/sta_info.c
++++ b/src/ap/sta_info.c
+@@ -386,6 +386,7 @@ void ap_handle_timer(void *eloop_ctx, vo
+ 			       HOSTAPD_LEVEL_INFO, "deauthenticated due to "
+ 			       "local deauth request");
+ 		ap_free_sta(hapd, sta);
++		hostapd_ubus_notify(hapd, "local-deauth", sta->addr);
+ 		return;
+ 	}
+ 
+@@ -533,6 +534,7 @@ skip_poll:
+ 			hapd, sta,
+ 			WLAN_REASON_PREV_AUTH_NOT_VALID);
+ 		ap_free_sta(hapd, sta);
++		hostapd_ubus_notify(hapd, "inactive-deauth", sta->addr);
+ 		break;
+ 	}
+ }
+--- a/src/ap/wpa_auth_glue.c
++++ b/src/ap/wpa_auth_glue.c
+@@ -159,6 +159,7 @@ static void hostapd_wpa_auth_psk_failure
+ 	struct hostapd_data *hapd = ctx;
+ 	wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_POSSIBLE_PSK_MISMATCH MACSTR,
+ 		MAC2STR(addr));
++	hostapd_ubus_notify(hapd, "key-mismatch", addr);
+ }
+ 
+ 

package/network/services/hostapd/src/src/ap/ubus.c

@@ -182,6 +182,37 @@ hostapd_bss_get_clients(struct ubus_context *ctx, struct ubus_object *obj,
 	return 0;
 }
 
+enum {
+	NOTIFY_RESPONSE,
+	__NOTIFY_MAX
+};
+
+static const struct blobmsg_policy notify_policy[__NOTIFY_MAX] = {
+	[NOTIFY_RESPONSE] = { "notify_response", BLOBMSG_TYPE_INT32 },
+};
+
+static int
+hostapd_notify_response(struct ubus_context *ctx, struct ubus_object *obj,
+			struct ubus_request_data *req, const char *method,
+			struct blob_attr *msg)
+{
+	struct blob_attr *tb[__NOTIFY_MAX];
+	struct hostapd_data *hapd = get_hapd_from_object(obj);
+	struct wpabuf *elems;
+	const char *pos;
+	size_t len;
+
+	blobmsg_parse(notify_policy, __NOTIFY_MAX, tb,
+		      blob_data(msg), blob_len(msg));
+
+	if (!tb[NOTIFY_RESPONSE])
+		return UBUS_STATUS_INVALID_ARGUMENT;
+
+	hapd->ubus.notify_response = blobmsg_get_u32(tb[NOTIFY_RESPONSE]);
+
+	return UBUS_STATUS_OK;
+}
+
 enum {
 	DEL_CLIENT_ADDR,
 	DEL_CLIENT_REASON,
@@ -427,6 +458,7 @@ static const struct ubus_method bss_methods[] = {
 	UBUS_METHOD("switch_chan", hostapd_switch_chan, csa_policy),
 #endif
 	UBUS_METHOD("set_vendor_elements", hostapd_vendor_elements, ve_policy),
+	UBUS_METHOD("notify_response", hostapd_notify_response, notify_policy),
 };
 
 static struct ubus_object_type bss_object_type =
@@ -523,6 +555,11 @@ int hostapd_ubus_handle_event(struct hostapd_data *hapd, struct hostapd_ubus_req
 		blobmsg_add_u32(&b, "signal", req->frame_info->ssi_signal);
 	blobmsg_add_u32(&b, "freq", hapd->iface->freq);
 
+	if (!hapd->ubus.notify_response) {
+		ubus_notify(ctx, &hapd->ubus.obj, type, b.head, -1);
+		return 0;
+	}
+
 	if (ubus_notify_async(ctx, &hapd->ubus.obj, type, b.head, &ureq.nreq))
 		return 0;
 
@@ -534,3 +571,21 @@ int hostapd_ubus_handle_event(struct hostapd_data *hapd, struct hostapd_ubus_req
 
 	return 0;
 }
+
+void hostapd_ubus_notify(struct hostapd_data *hapd, const char *type, const u8 *addr)
+{
+	char mac[18];
+
+	if (!hapd->ubus.obj.has_subscribers)
+		return;
+
+	if (!addr)
+		return;
+
+	snprintf(mac, sizeof(mac), MACSTR, MAC2STR(addr));
+
+	blob_buf_init(&b, 0);
+	blobmsg_add_macaddr(&b, "address", mac);
+
+	ubus_notify(ctx, &hapd->ubus.obj, type, b.head, -1);
+}

package/network/services/hostapd/src/src/ap/ubus.h

@@ -37,6 +37,7 @@ struct hostapd_ubus_iface {
 struct hostapd_ubus_bss {
 	struct ubus_object obj;
 	struct avl_tree banned;
+	int notify_response;
 };
 
 void hostapd_ubus_add_iface(struct hostapd_iface *iface);
@@ -45,6 +46,7 @@ void hostapd_ubus_add_bss(struct hostapd_data *hapd);
 void hostapd_ubus_free_bss(struct hostapd_data *hapd);
 
 int hostapd_ubus_handle_event(struct hostapd_data *hapd, struct hostapd_ubus_request *req);
+void hostapd_ubus_notify(struct hostapd_data *hapd, const char *type, const u8 *mac);
 
 #else
 
@@ -73,6 +75,9 @@ static inline int hostapd_ubus_handle_event(struct hostapd_data *hapd, struct ho
 	return 0;
 }
 
+static inline void hostapd_ubus_notify(struct hostapd_data *hapd, const char *type, const u8 *mac)
+{
+}
 #endif
 
 #endif