diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index f19cac6..2d07c67 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -665,6 +665,9 @@
 	u8 vht_oper_centr_freq_seg0_idx;
 	u8 vht_oper_centr_freq_seg1_idx;
 
+	/* Use driver-generated interface addresses when adding multiple BSSs */
+	u8 use_driver_iface_addr;
+
 #ifdef CONFIG_FST
 	struct fst_iface_cfg fst_cfg;
 #endif /* CONFIG_FST */
diff --git a/src/ap/dfs.c b/src/ap/dfs.c
index bda23f0..47adba7 100644
--- a/src/ap/dfs.c
+++ b/src/ap/dfs.c
@@ -704,7 +704,8 @@
 							skip_radar);
 			if (!channel) {
 				wpa_printf(MSG_ERROR, "could not get valid channel");
-				return -1;
+				hostapd_set_state(iface, HAPD_IFACE_DFS);
+				return 0;
 			}
 
 			iface->freq = channel->freq;
@@ -793,7 +794,6 @@
 
 	if (!channel) {
 		wpa_printf(MSG_ERROR, "No valid channel available");
-		hostapd_setup_interface_complete(iface, err);
 		return err;
 	}
 
@@ -858,8 +858,9 @@
 						&vht_oper_centr_freq_seg1_idx,
 						skip_radar);
 		if (!channel) {
-			/* FIXME: Wait for channel(s) to become available */
-			hostapd_disable_iface(iface);
+			wpa_printf(MSG_INFO,
+				   "%s: no DFS channels left, waiting for NOP to finish",
+				   __func__);
 			return err;
 		}
 
@@ -982,6 +983,11 @@
 	/* TODO add correct implementation here */
 	set_dfs_state(iface, freq, ht_enabled, chan_offset, chan_width,
 		      cf1, cf2, HOSTAPD_CHAN_DFS_USABLE);
+
+	/* Handle cases where all channels were initially unavailable */
+	if (iface->state == HAPD_IFACE_DFS && !iface->cac_started)
+		hostapd_handle_dfs(iface);
+
 	return 0;
 }
 
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index 303786b..55ca9e8 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -512,6 +512,9 @@
 	if (hostapd_drv_none(hapd))
 		return 0;
 
+	if (iface->conf->use_driver_iface_addr)
+		return 0;
+
 	/* Generate BSSID mask that is large enough to cover the BSSIDs. */
 
 	/* Determine the bits necessary to cover the number of BSSIDs. */
@@ -905,12 +908,9 @@
 	hapd->started = 1;
 
 	if (!first || first == -1) {
-		if (is_zero_ether_addr(conf->bssid)) {
-			/* Allocate the next available BSSID. */
-			do {
-				inc_byte_array(hapd->own_addr, ETH_ALEN);
-			} while (mac_in_conf(hapd->iconf, hapd->own_addr));
-		} else {
+		u8 *addr = hapd->own_addr;
+
+		if (!is_zero_ether_addr(conf->bssid)) {
 			/* Allocate the configured BSSID. */
 			os_memcpy(hapd->own_addr, conf->bssid, ETH_ALEN);
 
@@ -922,11 +922,18 @@
 					   "the radio", conf->iface);
 				return -1;
 			}
+		} else if (hapd->iconf->use_driver_iface_addr) {
+			addr = NULL;
+		} else {
+			/* Allocate the next available BSSID. */
+			do {
+				inc_byte_array(hapd->own_addr, ETH_ALEN);
+			} while (mac_in_conf(hapd->iconf, hapd->own_addr));
 		}
 
 		hapd->interface_added = 1;
 		if (hostapd_if_add(hapd->iface->bss[0], WPA_IF_AP_BSS,
-				   conf->iface, hapd->own_addr, hapd,
+				   conf->iface, addr, hapd,
 				   &hapd->drv_priv, force_ifname, if_addr,
 				   conf->bridge[0] ? conf->bridge : NULL,
 				   first == -1)) {
@@ -935,6 +942,9 @@
 			hapd->interface_added = 0;
 			return -1;
 		}
+
+		if (!addr)
+			os_memcpy(hapd->own_addr, if_addr, ETH_ALEN);
 	}
 
 	if (conf->wmm_enabled < 0)
@@ -1859,6 +1869,7 @@
 	hapd->iface = hapd_iface;
 	hapd->driver = hapd->iconf->driver;
 	hapd->ctrl_sock = -1;
+	dl_list_init(&hapd->ctrl_dst);
 
 	return hapd;
 }
diff --git a/src/ap/hostapd.h b/src/ap/hostapd.h
index d6d96db..60516ae 100644
--- a/src/ap/hostapd.h
+++ b/src/ap/hostapd.h
@@ -41,7 +41,7 @@
 
 	size_t count;
 	int global_ctrl_sock;
-	struct wpa_ctrl_dst *global_ctrl_dst;
+	struct dl_list global_ctrl_dst;
 	char *global_iface_path;
 	char *global_iface_name;
 #ifndef CONFIG_NATIVE_WINDOWS
@@ -155,7 +155,7 @@
 	int tkip_countermeasures;
 
 	int ctrl_sock;
-	struct wpa_ctrl_dst *ctrl_dst;
+	struct dl_list ctrl_dst;
 
 	void *ssl_ctx;
 	void *eap_sim_db_priv;
diff --git a/src/ap/ieee802_11.c b/src/ap/ieee802_11.c
index b36e68d..134ae06 100644
--- a/src/ap/ieee802_11.c
+++ b/src/ap/ieee802_11.c
@@ -2782,6 +2782,25 @@
 		wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC);
 	hapd->new_assoc_sta_cb(hapd, sta, !new_assoc);
 	ieee802_1x_notify_port_enabled(sta->eapol_sm, 1);
+
+	if (sta->pending_eapol_rx) {
+		struct os_reltime now, age;
+
+		os_get_reltime(&now);
+		os_reltime_sub(&now, &sta->pending_eapol_rx->rx_time, &age);
+		if (age.sec == 0 && age.usec < 200000) {
+			wpa_printf(MSG_DEBUG,
+				   "Process pending EAPOL frame that was received from " MACSTR " just before association notification",
+				   MAC2STR(sta->addr));
+			ieee802_1x_receive(
+				hapd, mgmt->da,
+				wpabuf_head(sta->pending_eapol_rx->buf),
+				wpabuf_len(sta->pending_eapol_rx->buf));
+		}
+		wpabuf_free(sta->pending_eapol_rx->buf);
+		os_free(sta->pending_eapol_rx);
+		sta->pending_eapol_rx = NULL;
+	}
 }
 
 
diff --git a/src/ap/ieee802_1x.c b/src/ap/ieee802_1x.c
index c774d5c..42b0299 100644
--- a/src/ap/ieee802_1x.c
+++ b/src/ap/ieee802_1x.c
@@ -861,6 +861,29 @@
 }
 
 
+static void ieee802_1x_save_eapol(struct sta_info *sta, const u8 *buf,
+				  size_t len)
+{
+	if (sta->pending_eapol_rx) {
+		wpabuf_free(sta->pending_eapol_rx->buf);
+	} else {
+		sta->pending_eapol_rx =
+			os_malloc(sizeof(*sta->pending_eapol_rx));
+		if (!sta->pending_eapol_rx)
+			return;
+	}
+
+	sta->pending_eapol_rx->buf = wpabuf_alloc_copy(buf, len);
+	if (!sta->pending_eapol_rx->buf) {
+		os_free(sta->pending_eapol_rx);
+		sta->pending_eapol_rx = NULL;
+		return;
+	}
+
+	os_get_reltime(&sta->pending_eapol_rx->rx_time);
+}
+
+
 /**
  * ieee802_1x_receive - Process the EAPOL frames from the Supplicant
  * @hapd: hostapd BSS data
@@ -891,6 +914,13 @@
 		     !(hapd->iface->drv_flags & WPA_DRIVER_FLAGS_WIRED))) {
 		wpa_printf(MSG_DEBUG, "IEEE 802.1X data frame from not "
 			   "associated/Pre-authenticating STA");
+
+		if (sta && (sta->flags & WLAN_STA_AUTH)) {
+			wpa_printf(MSG_DEBUG, "Saving EAPOL frame from " MACSTR
+				   " for later use", MAC2STR(sta->addr));
+			ieee802_1x_save_eapol(sta, buf, len);
+		}
+
 		return;
 	}
 
@@ -1183,6 +1213,12 @@
 	eloop_cancel_timeout(ieee802_1x_wnm_notif_send, hapd, sta);
 #endif /* CONFIG_HS20 */
 
+	if (sta->pending_eapol_rx) {
+		wpabuf_free(sta->pending_eapol_rx->buf);
+		os_free(sta->pending_eapol_rx);
+		sta->pending_eapol_rx = NULL;
+	}
+
 	if (sm == NULL)
 		return;
 
diff --git a/src/ap/sta_info.h b/src/ap/sta_info.h
index cd89e99..70a59cc 100644
--- a/src/ap/sta_info.h
+++ b/src/ap/sta_info.h
@@ -56,6 +56,11 @@
 	u8 channels[];
 };
 
+struct pending_eapol_rx {
+	struct wpabuf *buf;
+	struct os_reltime rx_time;
+};
+
 struct sta_info {
 	struct sta_info *next; /* next entry in sta list */
 	struct sta_info *hnext; /* next entry in hash table list */
@@ -113,6 +118,8 @@
 	/* IEEE 802.1X related data */
 	struct eapol_state_machine *eapol_sm;
 
+	struct pending_eapol_rx *pending_eapol_rx;
+
 	u64 acct_session_id;
 	struct os_reltime acct_session_start;
 	int acct_session_started;