openwrt/package/hostapd/patches/350-ap_isolate_support.patch

--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -1281,6 +1281,8 @@ struct hostapd_config * hostapd_config_r
 			}
 		} else if (os_strcmp(buf, "wds_sta") == 0) {
 			bss->wds_sta = atoi(pos);
+		} else if (os_strcmp(buf, "ap_isolate") == 0) {
+			bss->isolate = atoi(pos);
 		} else if (os_strcmp(buf, "ap_max_inactivity") == 0) {
 			bss->ap_max_inactivity = atoi(pos);
 		} else if (os_strcmp(buf, "country_code") == 0) {
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -199,6 +199,7 @@ struct hostapd_bss_config {
 	struct mac_acl_entry *deny_mac;
 	int num_deny_mac;
 	int wds_sta;
+	int isolate;
 
 	int auth_algs; /* bitfield of allowed IEEE 802.11 authentication
 			* algorithms, WPA_AUTH_ALG_{OPEN,SHARED,LEAP} */
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1704,6 +1704,14 @@ struct wpa_driver_ops {
 	                   const char *bridge_ifname);
 
 	/**
+	 * set_ap_isolate - Enable/disable AP isolation
+	 * @priv: private driver interface data
+	 * @val: 1 = enabled; 0 = disabled
+	 * Returns: 0 on success, -1 on failure
+	 */
+	int (*set_ap_isolate)(void *priv, int val);
+
+	/**
 	 * send_action - Transmit an Action frame
 	 * @priv: Private driver interface data
 	 * @freq: Frequency (in MHz) of the channel
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -4661,6 +4661,29 @@ static int i802_set_rate_sets(void *priv
 	return -ENOBUFS;
 }
 
+static int i802_set_ap_isolate(void *priv, int val)
+{
+	struct i802_bss *bss = priv;
+	struct wpa_driver_nl80211_data *drv = bss->drv;
+	struct nl_msg *msg;
+	int i;
+
+	msg = nlmsg_alloc();
+	if (!msg)
+		return -ENOMEM;
+
+	genlmsg_put(msg, 0, 0, genl_family_get_id(drv->nl80211), 0, 0,
+		    NL80211_CMD_SET_BSS, 0);
+
+	NLA_PUT_U8(msg, NL80211_ATTR_AP_ISOLATE, !!val);
+
+	NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, if_nametoindex(bss->ifname));
+
+	return send_and_recv_msgs(drv, msg, NULL, NULL);
+ nla_put_failure:
+	return -ENOBUFS;
+}
+
 #endif /* HOSTAPD */
 
 
@@ -5840,6 +5863,7 @@ const struct wpa_driver_ops wpa_driver_n
 	.set_tx_queue_params = i802_set_tx_queue_params,
 	.set_sta_vlan = i802_set_sta_vlan,
 	.set_wds_sta = i802_set_wds_sta,
+	.set_ap_isolate = i802_set_ap_isolate,
 #endif /* HOSTAPD */
 	.set_freq = i802_set_freq,
 	.send_action = wpa_driver_nl80211_send_action,
--- a/src/ap/ap_drv_ops.c
+++ b/src/ap/ap_drv_ops.c
@@ -281,6 +281,14 @@ static int hostapd_set_radius_acl_expire
 }
 
 
+static int hostapd_set_ap_isolate(struct hostapd_data *hapd, int value)
+{
+	if (hapd->driver == NULL || hapd->driver->set_ap_isolate == NULL)
+		return 0;
+	hapd->driver->set_ap_isolate(hapd->drv_priv, value);
+}
+
+
 static int hostapd_set_bss_params(struct hostapd_data *hapd,
 				  int use_protection)
 {
@@ -330,6 +338,12 @@ static int hostapd_set_bss_params(struct
 			   "driver");
 		ret = -1;
 	}
+	if (hostapd_set_ap_isolate(hapd, hapd->conf->isolate) &&
+	    !hapd->conf->isolate) {
+		wpa_printf(MSG_ERROR, "Could not enable AP isolation in "
+			   "kernel driver");
+		ret = -1;
+	}
 
 	return ret;
 }