diff --git a/hostapd/Makefile b/hostapd/Makefile
index 2b33d57c2..65c5e9195 100644
--- a/hostapd/Makefile
+++ b/hostapd/Makefile
@@ -327,6 +327,11 @@ NEED_SHA384=y
 NEED_SHA512=y
 endif
 
+ifdef CONFIG_AIRTIME_POLICY
+CFLAGS += -DCONFIG_AIRTIME_POLICY
+OBJS += ../src/ap/airtime_policy.o
+endif
+
 ifdef CONFIG_FILS
 CFLAGS += -DCONFIG_FILS
 OBJS += ../src/ap/fils_hlp.o
diff --git a/hostapd/config_file.c b/hostapd/config_file.c
index dce65570c..a3c58a5e3 100644
--- a/hostapd/config_file.c
+++ b/hostapd/config_file.c
@@ -2313,6 +2313,42 @@ static unsigned int parse_tls_flags(const char *val)
 #endif /* EAP_SERVER */
 
 
+#ifdef CONFIG_AIRTIME_POLICY
+static int add_airtime_weight(struct hostapd_bss_config *bss, char *value)
+{
+	struct airtime_sta_weight *wt;
+	char *pos, *next;
+
+	wt = os_zalloc(sizeof(*wt));
+	if (!wt)
+		return -1;
+
+	/* 02:01:02:03:04:05 10 */
+	pos = value;
+	next = os_strchr(pos, ' ');
+	if (next)
+		*next++ = '\0';
+	if (!next || hwaddr_aton(pos, wt->addr)) {
+		wpa_printf(MSG_ERROR, "Invalid station address: '%s'", pos);
+		os_free(wt);
+		return -1;
+	}
+
+	pos = next;
+	wt->weight = atoi(pos);
+	if (!wt->weight) {
+		wpa_printf(MSG_ERROR, "Invalid weight: '%s'", pos);
+		os_free(wt);
+		return -1;
+	}
+
+	wt->next = bss->airtime_weight_list;
+	bss->airtime_weight_list = wt;
+	return 0;
+}
+#endif /* CONFIG_AIRTIME_POLICY */
+
+
 #ifdef CONFIG_SAE
 static int parse_sae_password(struct hostapd_bss_config *bss, const char *val)
 {
@@ -4392,6 +4428,38 @@ static int hostapd_config_fill(struct hostapd_config *conf,
 		conf->rssi_reject_assoc_timeout = atoi(pos);
 	} else if (os_strcmp(buf, "pbss") == 0) {
 		bss->pbss = atoi(pos);
+#ifdef CONFIG_AIRTIME_POLICY
+	} else if (os_strcmp(buf, "airtime_mode") == 0) {
+		int val = atoi(pos);
+
+		if (val < 0 || val > AIRTIME_MODE_MAX) {
+			wpa_printf(MSG_ERROR, "Line %d: Unknown airtime_mode",
+				   line);
+			return 1;
+		}
+		conf->airtime_mode = val;
+	} else if (os_strcmp(buf, "airtime_update_interval") == 0) {
+		conf->airtime_update_interval = atoi(pos);
+	} else if (os_strcmp(buf, "airtime_bss_weight") == 0) {
+		bss->airtime_weight = atoi(pos);
+	} else if (os_strcmp(buf, "airtime_bss_limit") == 0) {
+		int val = atoi(pos);
+
+		if (val < 0 || val > 1) {
+			wpa_printf(MSG_ERROR,
+				   "Line %d: Invalid airtime_bss_limit (must be 0 or 1)",
+				   line);
+			return 1;
+		}
+		bss->airtime_limit = val;
+	} else if (os_strcmp(buf, "airtime_sta_weight") == 0) {
+		if (add_airtime_weight(bss, pos) < 0) {
+			wpa_printf(MSG_ERROR,
+				   "Line %d: Invalid airtime weight '%s'",
+				   line, pos);
+			return 1;
+		}
+#endif /* CONFIG_AIRTIME_POLICY */
 	} else {
 		wpa_printf(MSG_ERROR,
 			   "Line %d: unknown configuration item '%s'",
diff --git a/hostapd/defconfig b/hostapd/defconfig
index ea5e2c9de..1f504ad18 100644
--- a/hostapd/defconfig
+++ b/hostapd/defconfig
@@ -376,6 +376,9 @@ CONFIG_IPV6=y
 # Experimental implementation of draft-harkins-owe-07.txt
 #CONFIG_OWE=y
 
+# Airtime policy support
+#CONFIG_AIRTIME_POLICY=y
+
 # Override default value for the wpa_disable_eapol_key_retries configuration
 # parameter. See that parameter in hostapd.conf for more details.
 #CFLAGS += -DDEFAULT_WPA_DISABLE_EAPOL_KEY_RETRIES=1
diff --git a/hostapd/hostapd.conf b/hostapd/hostapd.conf
index 6dd4d0788..1702bd2e0 100644
--- a/hostapd/hostapd.conf
+++ b/hostapd/hostapd.conf
@@ -2496,6 +2496,42 @@ own_ip_addr=127.0.0.1
 # that allows sending of such data. Default: 0.
 #stationary_ap=0
 
+##### Airtime policy configuration ###########################################
+
+# Set the airtime policy operating mode:
+# 0 = disabled (default)
+# 1 = static config
+# 2 = per-BSS dynamic config
+# 3 = per-BSS limit mode
+#airtime_mode=0
+
+# Interval (in milliseconds) to poll the kernel for updated station activity in
+# dynamic and limit modes
+#airtime_update_interval=200
+
+# Static configuration of station weights (when airtime_mode=1). Kernel default
+# weight is 256; set higher for larger airtime share, lower for smaller share.
+# Each entry is a MAC address followed by a weight.
+#airtime_sta_weight=02:01:02:03:04:05 256
+#airtime_sta_weight=02:01:02:03:04:06 512
+
+# Per-BSS airtime weight. In multi-BSS mode, set for each BSS and hostapd will
+# configure station weights to enforce the correct ratio between BSS weights
+# depending on the number of active stations. The *ratios* between different
+# BSSes is what's important, not the absolute numbers.
+# Must be set for all BSSes if airtime_mode=2 or 3, has no effect otherwise.
+#airtime_bss_weight=1
+
+# Whether the current BSS should be limited (when airtime_mode=3).
+#
+# If set, the BSS weight ratio will be applied in the case where the current BSS
+# would exceed the share defined by the BSS weight ratio. E.g., if two BSSes are
+# set to the same weights, and one is set to limited, the limited BSS will get
+# no more than half the available airtime, but if the non-limited BSS has more
+# stations active, that *will* be allowed to exceed its half of the available
+# airtime.
+#airtime_bss_limit=1
+
 ##### TESTING OPTIONS #########################################################
 #
 # The options in this section are only available when the build configuration
diff --git a/src/ap/Makefile b/src/ap/Makefile
index 9b07ee163..48f8f238d 100644
--- a/src/ap/Makefile
+++ b/src/ap/Makefile
@@ -20,6 +20,7 @@ CFLAGS += -DCONFIG_WPS
 CFLAGS += -DCONFIG_PROXYARP
 CFLAGS += -DCONFIG_IPV6
 CFLAGS += -DCONFIG_IAPP
+CFLAGS += -DCONFIG_AIRTIME_POLICY
 
 LIB_OBJS= \
 	accounting.o \
@@ -27,6 +28,7 @@ LIB_OBJS= \
 	ap_drv_ops.o \
 	ap_list.o \
 	ap_mlme.o \
+	airtime_policy.o \
 	authsrv.o \
 	beacon.o \
 	bss_load.o \
diff --git a/src/ap/airtime_policy.c b/src/ap/airtime_policy.c
new file mode 100644
index 000000000..f56ca5bdd
--- /dev/null
+++ b/src/ap/airtime_policy.c
@@ -0,0 +1,269 @@
+/*
+ * Airtime policy configuration
+ * Copyright (c) 2018-2019, Toke Høiland-Jørgensen <toke@toke.dk>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#include "utils/includes.h"
+
+#include "utils/common.h"
+#include "utils/eloop.h"
+#include "hostapd.h"
+#include "ap_drv_ops.h"
+#include "sta_info.h"
+#include "airtime_policy.h"
+
+/* Idea:
+ * Two modes of airtime enforcement:
+ * 1. Static weights: specify weights per MAC address with a per-BSS default
+ * 2. Per-BSS limits: Dynamically calculate weights of backlogged stations to
+ *    enforce relative total shares between BSSes.
+ *
+ * - Periodic per-station callback to update queue status.
+ *
+ * Copy accounting_sta_update_stats() to get TXQ info and airtime weights and
+ * keep them updated in sta_info.
+ *
+ * - Separate periodic per-bss (or per-iface?) callback to update weights.
+ *
+ * Just need to loop through all interfaces, count sum the active stations (or
+ * should the per-STA callback just adjust that for the BSS?) and calculate new
+ * weights.
+ */
+
+static int get_airtime_policy_update_timeout(struct hostapd_iface *iface,
+					     unsigned int *sec,
+					     unsigned int *usec)
+{
+	unsigned int update_int = iface->conf->airtime_update_interval;
+
+	if (!update_int) {
+		wpa_printf(MSG_ERROR,
+			   "Airtime policy: Invalid airtime policy update interval %u",
+			   update_int);
+		return -1;
+	}
+
+	*sec = update_int / 1000;
+	*usec = (update_int % 1000) * 1000;
+
+	return 0;
+}
+
+
+static void set_new_backlog_time(struct hostapd_data *hapd,
+				 struct sta_info *sta,
+				 struct os_reltime *now)
+{
+	sta->backlogged_until = *now;
+	sta->backlogged_until.usec += hapd->iconf->airtime_update_interval *
+		AIRTIME_BACKLOG_EXPIRY_FACTOR;
+	while (sta->backlogged_until.usec >= 1000000) {
+		sta->backlogged_until.sec++;
+		sta->backlogged_until.usec -= 1000000;
+	}
+}
+
+
+static void count_backlogged_sta(struct hostapd_data *hapd)
+{
+	struct sta_info *sta;
+	struct hostap_sta_driver_data data = {};
+	unsigned int num_backlogged = 0;
+	struct os_reltime now;
+
+	os_get_reltime(&now);
+
+	for (sta = hapd->sta_list; sta; sta = sta->next) {
+		if (hostapd_drv_read_sta_data(hapd, &data, sta->addr))
+			continue;
+
+		if (data.backlog_bytes > 0)
+			set_new_backlog_time(hapd, sta, &now);
+		if (os_reltime_before(&now, &sta->backlogged_until))
+			num_backlogged++;
+	}
+	hapd->num_backlogged_sta = num_backlogged;
+}
+
+
+static int sta_set_airtime_weight(struct hostapd_data *hapd,
+				  struct sta_info *sta,
+				  unsigned int weight)
+{
+	int ret = 0;
+
+	if (weight != sta->airtime_weight &&
+	    (ret = hostapd_sta_set_airtime_weight(hapd, sta->addr, weight)))
+		return ret;
+
+	sta->airtime_weight = weight;
+	return ret;
+}
+
+
+static void set_sta_weights(struct hostapd_data *hapd, unsigned int weight)
+{
+	struct sta_info *sta;
+
+	for (sta = hapd->sta_list; sta; sta = sta->next)
+		sta_set_airtime_weight(hapd, sta, weight);
+}
+
+
+static unsigned int get_airtime_quantum(unsigned int max_wt)
+{
+	unsigned int quantum = AIRTIME_QUANTUM_TARGET / max_wt;
+
+	if (quantum < AIRTIME_QUANTUM_MIN)
+		quantum = AIRTIME_QUANTUM_MIN;
+	else if (quantum > AIRTIME_QUANTUM_MAX)
+		quantum = AIRTIME_QUANTUM_MAX;
+
+	return quantum;
+}
+
+
+static void update_airtime_weights(void *eloop_data, void *user_data)
+{
+	struct hostapd_iface *iface = eloop_data;
+	struct hostapd_data *bss;
+	unsigned int sec, usec;
+	unsigned int num_sta_min = 0, num_sta_prod = 1, num_sta_sum = 0,
+		wt_sum = 0;
+	unsigned int quantum;
+	Boolean all_div_min = TRUE;
+	Boolean apply_limit = iface->conf->airtime_mode == AIRTIME_MODE_DYNAMIC;
+	int wt, num_bss = 0, max_wt = 0;
+	size_t i;
+
+	for (i = 0; i < iface->num_bss; i++) {
+		bss = iface->bss[i];
+		if (!bss->started || !bss->conf->airtime_weight)
+			continue;
+
+		count_backlogged_sta(bss);
+		if (!bss->num_backlogged_sta)
+			continue;
+
+		if (!num_sta_min || bss->num_backlogged_sta < num_sta_min)
+			num_sta_min = bss->num_backlogged_sta;
+
+		num_sta_prod *= bss->num_backlogged_sta;
+		num_sta_sum += bss->num_backlogged_sta;
+		wt_sum += bss->conf->airtime_weight;
+		num_bss++;
+	}
+
+	if (num_sta_min) {
+		for (i = 0; i < iface->num_bss; i++) {
+			bss = iface->bss[i];
+			if (!bss->started || !bss->conf->airtime_weight)
+				continue;
+
+			/* Check if we can divide all sta numbers by the
+			 * smallest number to keep weights as small as possible.
+			 * This is a lazy way to avoid having to factor
+			 * integers. */
+			if (bss->num_backlogged_sta &&
+			    bss->num_backlogged_sta % num_sta_min > 0)
+				all_div_min = FALSE;
+
+			/* If we're in LIMIT mode, we only apply the weight
+			 * scaling when the BSS(es) marked as limited would a
+			 * larger share than the relative BSS weights indicates
+			 * it should. */
+			if (!apply_limit && bss->conf->airtime_limit) {
+				if (bss->num_backlogged_sta * wt_sum >
+				    bss->conf->airtime_weight * num_sta_sum)
+					apply_limit = TRUE;
+			}
+		}
+		if (all_div_min)
+			num_sta_prod /= num_sta_min;
+	}
+
+	for (i = 0; i < iface->num_bss; i++) {
+		bss = iface->bss[i];
+		if (!bss->started || !bss->conf->airtime_weight)
+			continue;
+
+		/* We only set the calculated weight if the BSS has active
+		 * stations and there are other active interfaces as well -
+		 * otherwise we just set a unit weight. This ensures that
+		 * the weights are set reasonably when stations transition from
+		 * inactive to active. */
+		if (apply_limit && bss->num_backlogged_sta && num_bss > 1)
+			wt = bss->conf->airtime_weight * num_sta_prod /
+				bss->num_backlogged_sta;
+		else
+			wt = 1;
+
+		bss->airtime_weight = wt;
+		if (wt > max_wt)
+			max_wt = wt;
+	}
+
+	quantum = get_airtime_quantum(max_wt);
+
+	for (i = 0; i < iface->num_bss; i++) {
+		bss = iface->bss[i];
+		if (!bss->started || !bss->conf->airtime_weight)
+			continue;
+		set_sta_weights(bss, bss->airtime_weight * quantum);
+	}
+
+	if (get_airtime_policy_update_timeout(iface, &sec, &usec) < 0)
+		return;
+
+	eloop_register_timeout(sec, usec, update_airtime_weights, iface,
+			       NULL);
+}
+
+
+static int get_weight_for_sta(struct hostapd_data *hapd, const u8 *sta)
+{
+	struct airtime_sta_weight *wt;
+
+	wt = hapd->conf->airtime_weight_list;
+	while (wt && os_memcmp(wt->addr, sta, ETH_ALEN) != 0)
+		wt = wt->next;
+
+	return wt ? wt->weight : hapd->conf->airtime_weight;
+}
+
+
+int airtime_policy_new_sta(struct hostapd_data *hapd, struct sta_info *sta)
+{
+	unsigned int weight;
+
+	if (hapd->iconf->airtime_mode == AIRTIME_MODE_STATIC) {
+		weight = get_weight_for_sta(hapd, sta->addr);
+		if (weight)
+			return sta_set_airtime_weight(hapd, sta, weight);
+	}
+	return 0;
+}
+
+
+int airtime_policy_update_init(struct hostapd_iface *iface)
+{
+	unsigned int sec, usec;
+
+	if (iface->conf->airtime_mode < AIRTIME_MODE_DYNAMIC)
+		return 0;
+
+	if (get_airtime_policy_update_timeout(iface, &sec, &usec) < 0)
+		return -1;
+
+	eloop_register_timeout(sec, usec, update_airtime_weights, iface, NULL);
+	return 0;
+}
+
+
+void airtime_policy_update_deinit(struct hostapd_iface *iface)
+{
+	eloop_cancel_timeout(update_airtime_weights, iface, NULL);
+}
diff --git a/src/ap/airtime_policy.h b/src/ap/airtime_policy.h
new file mode 100644
index 000000000..c2a9b0080
--- /dev/null
+++ b/src/ap/airtime_policy.h
@@ -0,0 +1,48 @@
+/*
+ * Airtime policy configuration
+ * Copyright (c) 2018-2019, Toke Høiland-Jørgensen <toke@toke.dk>
+ *
+ * This software may be distributed under the terms of the BSD license.
+ * See README for more details.
+ */
+
+#ifndef AIRTIME_POLICY_H
+#define AIRTIME_POLICY_H
+
+struct hostapd_iface;
+
+#ifdef CONFIG_AIRTIME_POLICY
+
+#define AIRTIME_DEFAULT_UPDATE_INTERVAL 200 /* ms */
+#define AIRTIME_BACKLOG_EXPIRY_FACTOR 2500 /* 2.5 intervals + convert to usec */
+
+/* scale quantum so this becomes the effective quantum after applying the max
+ * weight, but never go below min or above max */
+#define AIRTIME_QUANTUM_MIN 8 /* usec */
+#define AIRTIME_QUANTUM_MAX 256 /* usec */
+#define AIRTIME_QUANTUM_TARGET 1024 /* usec */
+
+int airtime_policy_new_sta(struct hostapd_data *hapd, struct sta_info *sta);
+int airtime_policy_update_init(struct hostapd_iface *iface);
+void airtime_policy_update_deinit(struct hostapd_iface *iface);
+
+#else /* CONFIG_AIRTIME_POLICY */
+
+static inline int airtime_policy_new_sta(struct hostapd_data *hapd,
+					 struct sta_info *sta)
+{
+	return -1;
+}
+
+static inline int airtime_policy_update_init(struct hostapd_iface *iface)
+{
+	return -1;
+}
+
+static inline void airtime_policy_update_deinit(struct hostapd_iface *iface)
+{
+}
+
+#endif /* CONFIG_AIRTIME_POLICY */
+
+#endif /* AIRTIME_POLICY_H */
diff --git a/src/ap/ap_config.c b/src/ap/ap_config.c
index 2ace6023a..09ab3727a 100644
--- a/src/ap/ap_config.c
+++ b/src/ap/ap_config.c
@@ -19,6 +19,7 @@
 #include "eap_server/eap.h"
 #include "wpa_auth.h"
 #include "sta_info.h"
+#include "airtime_policy.h"
 #include "ap_config.h"
 
 
@@ -249,6 +250,10 @@ struct hostapd_config * hostapd_config_defaults(void)
 	conf->rssi_reject_assoc_rssi = 0;
 	conf->rssi_reject_assoc_timeout = 30;
 
+#ifdef CONFIG_AIRTIME_POLICY
+	conf->airtime_update_interval = AIRTIME_DEFAULT_UPDATE_INTERVAL;
+#endif /* CONFIG_AIRTIME_POLICY */
+
 	return conf;
 }
 
@@ -766,6 +771,20 @@ void hostapd_config_free_bss(struct hostapd_bss_config *conf)
 
 	hostapd_config_free_sae_passwords(conf);
 
+#ifdef CONFIG_AIRTIME_POLICY
+	{
+		struct airtime_sta_weight *wt, *wt_prev;
+
+		wt = conf->airtime_weight_list;
+		conf->airtime_weight_list = NULL;
+		while (wt) {
+			wt_prev = wt;
+			wt = wt->next;
+			os_free(wt_prev);
+		}
+	}
+#endif /* CONFIG_AIRTIME_POLICY */
+
 	os_free(conf);
 }
 
@@ -1162,6 +1181,13 @@ int hostapd_config_check(struct hostapd_config *conf, int full_config)
 		return -1;
 	}
 
+#ifdef CONFIG_AIRTIME_POLICY
+	if (full_config && conf->airtime_mode > AIRTIME_MODE_STATIC &&
+	    !conf->airtime_update_interval) {
+		wpa_printf(MSG_ERROR, "Airtime update interval cannot be zero");
+		return -1;
+	}
+#endif /* CONFIG_AIRTIME_POLICY */
 	for (i = 0; i < NUM_TX_QUEUES; i++) {
 		if (hostapd_config_check_cw(conf, i))
 			return -1;
diff --git a/src/ap/ap_config.h b/src/ap/ap_config.h
index f18425224..b0b5c6f3f 100644
--- a/src/ap/ap_config.h
+++ b/src/ap/ap_config.h
@@ -259,6 +259,12 @@ struct dpp_controller_conf {
 	struct hostapd_ip_addr ipaddr;
 };
 
+struct airtime_sta_weight {
+	struct airtime_sta_weight *next;
+	unsigned int weight;
+	u8 addr[ETH_ALEN];
+};
+
 /**
  * struct hostapd_bss_config - Per-BSS configuration
  */
@@ -719,6 +725,12 @@ struct hostapd_bss_config {
 #define BACKHAUL_BSS 1
 #define FRONTHAUL_BSS 2
 	int multi_ap; /* bitmap of BACKHAUL_BSS, FRONTHAUL_BSS */
+
+#ifdef CONFIG_AIRTIME_POLICY
+	unsigned int airtime_weight;
+	int airtime_limit;
+	struct airtime_sta_weight *airtime_weight_list;
+#endif /* CONFIG_AIRTIME_POLICY */
 };
 
 /**
@@ -884,6 +896,18 @@ struct hostapd_config {
 
 	int rssi_reject_assoc_rssi;
 	int rssi_reject_assoc_timeout;
+
+#ifdef CONFIG_AIRTIME_POLICY
+	enum {
+		AIRTIME_MODE_OFF = 0,
+		AIRTIME_MODE_STATIC = 1,
+		AIRTIME_MODE_DYNAMIC = 2,
+		AIRTIME_MODE_LIMIT = 3,
+		__AIRTIME_MODE_MAX,
+	} airtime_mode;
+	unsigned int airtime_update_interval;
+#define AIRTIME_MODE_MAX (__AIRTIME_MODE_MAX - 1)
+#endif /* CONFIG_AIRTIME_POLICY */
 };
 
 
diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index 0bd689238..d0fecc895 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -50,6 +50,7 @@
 #include "fils_hlp.h"
 #include "acs.h"
 #include "hs20.h"
+#include "airtime_policy.h"
 
 
 static int hostapd_flush_old_stations(struct hostapd_data *hapd, u16 reason);
@@ -491,6 +492,7 @@ static void hostapd_cleanup_iface_partial(struct hostapd_iface *iface)
 	iface->basic_rates = NULL;
 	ap_list_deinit(iface);
 	sta_track_deinit(iface);
+	airtime_policy_update_deinit(iface);
 }
 
 
@@ -1976,6 +1978,7 @@ dfs_offload:
 
 	hostapd_set_state(iface, HAPD_IFACE_ENABLED);
 	hostapd_owe_update_trans(iface);
+	airtime_policy_update_init(iface);
 	wpa_msg(iface->bss[0]->msg_ctx, MSG_INFO, AP_EVENT_ENABLED);
 	if (hapd->setup_complete_cb)
 		hapd->setup_complete_cb(hapd->setup_complete_cb_ctx);
@@ -2996,6 +2999,8 @@ void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
 	}
 #endif /* CONFIG_P2P */
 
+	airtime_policy_new_sta(hapd, sta);
+
 	/* Start accounting here, if IEEE 802.1X and WPA are not used.
 	 * IEEE 802.1X/WPA code will start accounting after the station has
 	 * been authorized. */
diff --git a/src/ap/hostapd.h b/src/ap/hostapd.h
index 0f76cd6c8..594699f3c 100644
--- a/src/ap/hostapd.h
+++ b/src/ap/hostapd.h
@@ -379,6 +379,11 @@ struct hostapd_data {
 	unsigned int dpp_ignore_netaccesskey_mismatch:1;
 #endif /* CONFIG_TESTING_OPTIONS */
 #endif /* CONFIG_DPP */
+
+#ifdef CONFIG_AIRTIME_POLICY
+	unsigned int num_backlogged_sta;
+	unsigned int airtime_weight;
+#endif /* CONFIG_AIRTIME_POLICY */
 };
 
 
@@ -541,6 +546,9 @@ struct hostapd_iface {
 	unsigned int num_sta_seen;
 
 	u8 dfs_domain;
+#ifdef CONFIG_AIRTIME_POLICY
+	unsigned int airtime_quantum;
+#endif /* CONFIG_AIRTIME_POLICY */
 };
 
 /* hostapd.c */
diff --git a/src/ap/sta_info.h b/src/ap/sta_info.h
index ece0c60ab..c185d7a0a 100644
--- a/src/ap/sta_info.h
+++ b/src/ap/sta_info.h
@@ -275,6 +275,10 @@ struct sta_info {
 	u8 last_tk[WPA_TK_MAX_LEN];
 	size_t last_tk_len;
 #endif /* CONFIG_TESTING_OPTIONS */
+#ifdef CONFIG_AIRTIME_POLICY
+	unsigned int airtime_weight;
+	struct os_reltime backlogged_until;
+#endif /* CONFIG_AIRTIME_POLICY */
 };