--- a/hostapd/Makefile
+++ b/hostapd/Makefile
@@ -165,6 +165,11 @@ OBJS += ../src/common/hw_features_common
 
 OBJS += ../src/eapol_auth/eapol_auth_sm.o
 
+ifdef CONFIG_UBUS
+CFLAGS += -DUBUS_SUPPORT
+OBJS += ../src/ap/ubus.o
+LIBS += -lubox -lubus
+endif
 
 ifdef CONFIG_CODE_COVERAGE
 CFLAGS += -O0 -fprofile-arcs -ftest-coverage
--- a/src/ap/hostapd.h
+++ b/src/ap/hostapd.h
@@ -13,6 +13,7 @@
 #include "utils/list.h"
 #include "ap_config.h"
 #include "drivers/driver.h"
+#include "ubus.h"
 
 struct wpa_ctrl_dst;
 struct radius_server_data;
@@ -119,6 +120,7 @@ struct hostapd_data {
 	struct hostapd_iface *iface;
 	struct hostapd_config *iconf;
 	struct hostapd_bss_config *conf;
+	struct hostapd_ubus_bss ubus;
 	int interface_added; /* virtual interface added for this BSS */
 	unsigned int started:1;
 	unsigned int disabled:1;
@@ -328,6 +330,8 @@ struct hostapd_iface {
 	struct hostapd_config *conf;
 	char phy[16]; /* Name of the PHY (radio) */
 
+	struct hostapd_ubus_iface ubus;
+
 	enum hostapd_iface_state {
 		HAPD_IFACE_UNINITIALIZED,
 		HAPD_IFACE_DISABLED,
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -302,6 +302,7 @@ static void hostapd_free_hapd_data(struc
 	hapd->started = 0;
 
 	wpa_printf(MSG_DEBUG, "%s(%s)", __func__, hapd->conf->iface);
+	hostapd_ubus_free_bss(hapd);
 	iapp_deinit(hapd->iapp);
 	hapd->iapp = NULL;
 	accounting_deinit(hapd);
@@ -1160,6 +1161,8 @@ static int hostapd_setup_bss(struct host
 	if (hapd->driver && hapd->driver->set_operstate)
 		hapd->driver->set_operstate(hapd->drv_priv, 1);
 
+	hostapd_ubus_add_bss(hapd);
+
 	return 0;
 }
 
@@ -1683,6 +1686,7 @@ static int hostapd_setup_interface_compl
 	if (err)
 		goto fail;
 
+	hostapd_ubus_add_iface(iface);
 	wpa_printf(MSG_DEBUG, "Completing interface initialization");
 	if (iface->conf->channel) {
 #ifdef NEED_AP_MLME
@@ -1862,6 +1866,7 @@ dfs_offload:
 
 fail:
 	wpa_printf(MSG_ERROR, "Interface initialization failed");
+	hostapd_ubus_free_iface(iface);
 	hostapd_set_state(iface, HAPD_IFACE_DISABLED);
 	wpa_msg(hapd->msg_ctx, MSG_INFO, AP_EVENT_DISABLED);
 #ifdef CONFIG_FST
@@ -2310,6 +2315,7 @@ void hostapd_interface_deinit_free(struc
 		   (unsigned int) iface->conf->num_bss);
 	driver = iface->bss[0]->driver;
 	drv_priv = iface->bss[0]->drv_priv;
+	hostapd_ubus_free_iface(iface);
 	hostapd_interface_deinit(iface);
 	wpa_printf(MSG_DEBUG, "%s: driver=%p drv_priv=%p -> hapd_deinit",
 		   __func__, driver, drv_priv);
--- a/src/ap/ieee802_11.c
+++ b/src/ap/ieee802_11.c
@@ -1293,7 +1293,8 @@ void ieee802_11_finish_fils_auth(struct
 
 
 static void handle_auth(struct hostapd_data *hapd,
-			const struct ieee80211_mgmt *mgmt, size_t len)
+			const struct ieee80211_mgmt *mgmt, size_t len,
+			struct hostapd_frame_info *fi)
 {
 	u16 auth_alg, auth_transaction, status_code;
 	u16 resp = WLAN_STATUS_SUCCESS;
@@ -1309,6 +1310,11 @@ static void handle_auth(struct hostapd_d
 	char *identity = NULL;
 	char *radius_cui = NULL;
 	u16 seq_ctrl;
+	struct hostapd_ubus_request req = {
+		.type = HOSTAPD_UBUS_AUTH_REQ,
+		.mgmt_frame = mgmt,
+		.frame_info = fi,
+	};
 
 	os_memset(&vlan_id, 0, sizeof(vlan_id));
 
@@ -1466,6 +1472,14 @@ static void handle_auth(struct hostapd_d
 		resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
 		goto fail;
 	}
+
+	if (hostapd_ubus_handle_event(hapd, &req)) {
+		wpa_printf(MSG_DEBUG, "Station " MACSTR " rejected by ubus handler.\n",
+		       MAC2STR(mgmt->sa));
+		resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
+		goto fail;
+	}
+
 	if (res == HOSTAPD_ACL_PENDING) {
 		wpa_printf(MSG_DEBUG, "Authentication frame from " MACSTR
 			   " waiting for an external authentication",
@@ -2401,7 +2415,7 @@ static u16 send_assoc_resp(struct hostap
 
 static void handle_assoc(struct hostapd_data *hapd,
 			 const struct ieee80211_mgmt *mgmt, size_t len,
-			 int reassoc)
+			 int reassoc, struct hostapd_frame_info *fi)
 {
 	u16 capab_info, listen_interval, seq_ctrl, fc;
 	u16 resp = WLAN_STATUS_SUCCESS, reply_res;
@@ -2409,6 +2423,11 @@ static void handle_assoc(struct hostapd_
 	int left, i;
 	struct sta_info *sta;
 	u8 *tmp = NULL;
+	struct hostapd_ubus_request req = {
+		.type = HOSTAPD_UBUS_ASSOC_REQ,
+		.mgmt_frame = mgmt,
+		.frame_info = fi,
+	};
 
 	if (len < IEEE80211_HDRLEN + (reassoc ? sizeof(mgmt->u.reassoc_req) :
 				      sizeof(mgmt->u.assoc_req))) {
@@ -2528,6 +2547,13 @@ static void handle_assoc(struct hostapd_
 	}
 #endif /* CONFIG_MBO */
 
+	if (hostapd_ubus_handle_event(hapd, &req)) {
+		wpa_printf(MSG_DEBUG, "Station " MACSTR " assoc rejected by ubus handler.\n",
+		       MAC2STR(mgmt->sa));
+		resp = WLAN_STATUS_UNSPECIFIED_FAILURE;
+		goto fail;
+	}
+
 	/*
 	 * sta->capability is used in check_assoc_ies() for RRM enabled
 	 * capability element.
@@ -3035,7 +3061,7 @@ int ieee802_11_mgmt(struct hostapd_data
 
 
 	if (stype == WLAN_FC_STYPE_PROBE_REQ) {
-		handle_probe_req(hapd, mgmt, len, fi->ssi_signal);
+		handle_probe_req(hapd, mgmt, len, fi);
 		return 1;
 	}
 
@@ -3053,17 +3079,17 @@ int ieee802_11_mgmt(struct hostapd_data
 	switch (stype) {
 	case WLAN_FC_STYPE_AUTH:
 		wpa_printf(MSG_DEBUG, "mgmt::auth");
-		handle_auth(hapd, mgmt, len);
+		handle_auth(hapd, mgmt, len, fi);
 		ret = 1;
 		break;
 	case WLAN_FC_STYPE_ASSOC_REQ:
 		wpa_printf(MSG_DEBUG, "mgmt::assoc_req");
-		handle_assoc(hapd, mgmt, len, 0);
+		handle_assoc(hapd, mgmt, len, 0, fi);
 		ret = 1;
 		break;
 	case WLAN_FC_STYPE_REASSOC_REQ:
 		wpa_printf(MSG_DEBUG, "mgmt::reassoc_req");
-		handle_assoc(hapd, mgmt, len, 1);
+		handle_assoc(hapd, mgmt, len, 1, fi);
 		ret = 1;
 		break;
 	case WLAN_FC_STYPE_DISASSOC:
--- a/src/ap/beacon.c
+++ b/src/ap/beacon.c
@@ -702,7 +702,7 @@ void sta_track_claim_taxonomy_info(struc
 
 void handle_probe_req(struct hostapd_data *hapd,
 		      const struct ieee80211_mgmt *mgmt, size_t len,
-		      int ssi_signal)
+		      struct hostapd_frame_info *fi)
 {
 	u8 *resp;
 	struct ieee802_11_elems elems;
@@ -711,9 +711,15 @@ void handle_probe_req(struct hostapd_dat
 	size_t i, resp_len;
 	int noack;
 	enum ssid_match_result res;
+	int ssi_signal = fi->ssi_signal;
 	int ret;
 	u16 csa_offs[2];
 	size_t csa_offs_len;
+	struct hostapd_ubus_request req = {
+		.type = HOSTAPD_UBUS_PROBE_REQ,
+		.mgmt_frame = mgmt,
+		.frame_info = fi,
+	};
 
 	if (len < IEEE80211_HDRLEN)
 		return;
@@ -880,6 +886,12 @@ void handle_probe_req(struct hostapd_dat
 	}
 #endif /* CONFIG_P2P */
 
+	if (hostapd_ubus_handle_event(hapd, &req)) {
+		wpa_printf(MSG_DEBUG, "Probe request for " MACSTR " rejected by ubus handler.\n",
+		       MAC2STR(mgmt->sa));
+		return;
+	}
+
 	/* TODO: verify that supp_rates contains at least one matching rate
 	 * with AP configuration */
 
--- a/src/ap/beacon.h
+++ b/src/ap/beacon.h
@@ -14,7 +14,7 @@ struct ieee80211_mgmt;
 
 void handle_probe_req(struct hostapd_data *hapd,
 		      const struct ieee80211_mgmt *mgmt, size_t len,
-		      int ssi_signal);
+		      struct hostapd_frame_info *fi);
 int ieee802_11_set_beacon(struct hostapd_data *hapd);
 int ieee802_11_set_beacons(struct hostapd_iface *iface);
 int ieee802_11_update_beacons(struct hostapd_iface *iface);
--- a/src/ap/drv_callbacks.c
+++ b/src/ap/drv_callbacks.c
@@ -52,6 +52,10 @@ int hostapd_notif_assoc(struct hostapd_d
 	u16 reason = WLAN_REASON_UNSPECIFIED;
 	u16 status = WLAN_STATUS_SUCCESS;
 	const u8 *p2p_dev_addr = NULL;
+	struct hostapd_ubus_request req = {
+		.type = HOSTAPD_UBUS_ASSOC_REQ,
+		.addr = addr,
+	};
 
 	if (addr == NULL) {
 		/*
@@ -131,6 +135,12 @@ int hostapd_notif_assoc(struct hostapd_d
 		goto fail;
 	}
 
+	if (hostapd_ubus_handle_event(hapd, &req)) {
+		wpa_printf(MSG_DEBUG, "Station " MACSTR " assoc rejected by ubus handler.\n",
+			   MAC2STR(req.addr));
+		goto fail;
+	}
+
 #ifdef CONFIG_P2P
 	if (elems.p2p) {
 		wpabuf_free(sta->p2p_ie);
