1 files changed, 241 insertions, 4 deletions

diff --git a/src/ap/hostapd.c b/src/ap/hostapd.c
index 3e4e16b4f396a..c09c17a446963 100644
--- a/src/ap/hostapd.c
+++ b/src/ap/hostapd.c
@@ -17,6 +17,7 @@
 #include "eap_server/tncs.h"
 #include "eapol_auth/eapol_auth_sm.h"
 #include "eapol_auth/eapol_auth_sm_i.h"
+#include "fst/fst.h"
 #include "hostapd.h"
 #include "authsrv.h"
 #include "sta_info.h"
@@ -179,6 +180,7 @@ int hostapd_reload_config(struct hostapd_iface *iface)
 		hapd = iface->bss[j];
 		hapd->iconf = newconf;
 		hapd->iconf->channel = oldconf->channel;
+		hapd->iconf->acs = oldconf->acs;
 		hapd->iconf->secondary_channel = oldconf->secondary_channel;
 		hapd->iconf->ieee80211n = oldconf->ieee80211n;
 		hapd->iconf->ieee80211ac = oldconf->ieee80211ac;
@@ -259,6 +261,7 @@ static void hostapd_free_hapd_data(struct hostapd_data *hapd)
 {
 	os_free(hapd->probereq_cb);
 	hapd->probereq_cb = NULL;
+	hapd->num_probereq_cb = 0;
 
 #ifdef CONFIG_P2P
 	wpabuf_free(hapd->p2p_beacon_ie);
@@ -353,6 +356,22 @@ static void hostapd_cleanup(struct hostapd_data *hapd)
 }
 
 
+static void sta_track_deinit(struct hostapd_iface *iface)
+{
+	struct hostapd_sta_info *info;
+
+	if (!iface->num_sta_seen)
+		return;
+
+	while ((info = dl_list_first(&iface->sta_seen, struct hostapd_sta_info,
+				     list))) {
+		dl_list_del(&info->list);
+		iface->num_sta_seen--;
+		os_free(info);
+	}
+}
+
+
 static void hostapd_cleanup_iface_partial(struct hostapd_iface *iface)
 {
 	wpa_printf(MSG_DEBUG, "%s(%p)", __func__, iface);
@@ -368,6 +387,7 @@ static void hostapd_cleanup_iface_partial(struct hostapd_iface *iface)
 	os_free(iface->basic_rates);
 	iface->basic_rates = NULL;
 	ap_list_deinit(iface);
+	sta_track_deinit(iface);
 }
 
 
@@ -861,7 +881,7 @@ hostapd_das_disconnect(void *ctx, struct radius_das_attrs *attr)
 static int hostapd_setup_bss(struct hostapd_data *hapd, int first)
 {
 	struct hostapd_bss_config *conf = hapd->conf;
-	u8 ssid[HOSTAPD_MAX_SSID_LEN + 1];
+	u8 ssid[SSID_MAX_LEN + 1];
 	int ssid_len, set_ssid;
 	char force_ifname[IFNAMSIZ];
 	u8 if_addr[ETH_ALEN];
@@ -1363,6 +1383,132 @@ fail:
 }
 
 
+#ifdef CONFIG_FST
+
+static const u8 * fst_hostapd_get_bssid_cb(void *ctx)
+{
+	struct hostapd_data *hapd = ctx;
+
+	return hapd->own_addr;
+}
+
+
+static void fst_hostapd_get_channel_info_cb(void *ctx,
+					    enum hostapd_hw_mode *hw_mode,
+					    u8 *channel)
+{
+	struct hostapd_data *hapd = ctx;
+
+	*hw_mode = ieee80211_freq_to_chan(hapd->iface->freq, channel);
+}
+
+
+static void fst_hostapd_set_ies_cb(void *ctx, const struct wpabuf *fst_ies)
+{
+	struct hostapd_data *hapd = ctx;
+
+	if (hapd->iface->fst_ies != fst_ies) {
+		hapd->iface->fst_ies = fst_ies;
+		if (ieee802_11_set_beacon(hapd))
+			wpa_printf(MSG_WARNING, "FST: Cannot set beacon");
+	}
+}
+
+
+static int fst_hostapd_send_action_cb(void *ctx, const u8 *da,
+				      struct wpabuf *buf)
+{
+	struct hostapd_data *hapd = ctx;
+
+	return hostapd_drv_send_action(hapd, hapd->iface->freq, 0, da,
+				       wpabuf_head(buf), wpabuf_len(buf));
+}
+
+
+static const struct wpabuf * fst_hostapd_get_mb_ie_cb(void *ctx, const u8 *addr)
+{
+	struct hostapd_data *hapd = ctx;
+	struct sta_info *sta = ap_get_sta(hapd, addr);
+
+	return sta ? sta->mb_ies : NULL;
+}
+
+
+static void fst_hostapd_update_mb_ie_cb(void *ctx, const u8 *addr,
+					const u8 *buf, size_t size)
+{
+	struct hostapd_data *hapd = ctx;
+	struct sta_info *sta = ap_get_sta(hapd, addr);
+
+	if (sta) {
+		struct mb_ies_info info;
+
+		if (!mb_ies_info_by_ies(&info, buf, size)) {
+			wpabuf_free(sta->mb_ies);
+			sta->mb_ies = mb_ies_by_info(&info);
+		}
+	}
+}
+
+
+static const u8 * fst_hostapd_get_sta(struct fst_get_peer_ctx **get_ctx,
+				      Boolean mb_only)
+{
+	struct sta_info *s = (struct sta_info *) *get_ctx;
+
+	if (mb_only) {
+		for (; s && !s->mb_ies; s = s->next)
+			;
+	}
+
+	if (s) {
+		*get_ctx = (struct fst_get_peer_ctx *) s->next;
+
+		return s->addr;
+	}
+
+	*get_ctx = NULL;
+	return NULL;
+}
+
+
+static const u8 * fst_hostapd_get_peer_first(void *ctx,
+					     struct fst_get_peer_ctx **get_ctx,
+					     Boolean mb_only)
+{
+	struct hostapd_data *hapd = ctx;
+
+	*get_ctx = (struct fst_get_peer_ctx *) hapd->sta_list;
+
+	return fst_hostapd_get_sta(get_ctx, mb_only);
+}
+
+
+static const u8 * fst_hostapd_get_peer_next(void *ctx,
+					    struct fst_get_peer_ctx **get_ctx,
+					    Boolean mb_only)
+{
+	return fst_hostapd_get_sta(get_ctx, mb_only);
+}
+
+
+void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd,
+				struct fst_wpa_obj *iface_obj)
+{
+	iface_obj->ctx = hapd;
+	iface_obj->get_bssid = fst_hostapd_get_bssid_cb;
+	iface_obj->get_channel_info = fst_hostapd_get_channel_info_cb;
+	iface_obj->set_ies = fst_hostapd_set_ies_cb;
+	iface_obj->send_action = fst_hostapd_send_action_cb;
+	iface_obj->get_mb_ie = fst_hostapd_get_mb_ie_cb;
+	iface_obj->update_mb_ie = fst_hostapd_update_mb_ie_cb;
+	iface_obj->get_peer_first = fst_hostapd_get_peer_first;
+	iface_obj->get_peer_next = fst_hostapd_get_peer_next;
+}
+
+#endif /* CONFIG_FST */
+
+
 /**
  * hostapd_setup_interface_complete - Complete interface setup
  *
@@ -1495,6 +1641,7 @@ int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err)
 	hostapd_tx_queue_params(iface);
 
 	ap_list_init(iface);
+	dl_list_init(&iface->sta_seen);
 
 	hostapd_set_acl(hapd);
 
@@ -1528,6 +1675,22 @@ int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err)
 #ifdef NEED_AP_MLME
 dfs_offload:
 #endif /* NEED_AP_MLME */
+
+#ifdef CONFIG_FST
+	if (hapd->iconf->fst_cfg.group_id[0]) {
+		struct fst_wpa_obj iface_obj;
+
+		fst_hostapd_fill_iface_obj(hapd, &iface_obj);
+		iface->fst = fst_attach(hapd->conf->iface, hapd->own_addr,
+					&iface_obj, &hapd->iconf->fst_cfg);
+		if (!iface->fst) {
+			wpa_printf(MSG_ERROR, "Could not attach to FST %s",
+				   hapd->iconf->fst_cfg.group_id);
+			goto fail;
+		}
+	}
+#endif /* CONFIG_FST */
+
 	hostapd_set_state(iface, HAPD_IFACE_ENABLED);
 	wpa_msg(iface->bss[0]->msg_ctx, MSG_INFO, AP_EVENT_ENABLED);
 	if (hapd->setup_complete_cb)
@@ -1544,6 +1707,12 @@ fail:
 	wpa_printf(MSG_ERROR, "Interface initialization failed");
 	hostapd_set_state(iface, HAPD_IFACE_DISABLED);
 	wpa_msg(hapd->msg_ctx, MSG_INFO, AP_EVENT_DISABLED);
+#ifdef CONFIG_FST
+	if (iface->fst) {
+		fst_detach(iface->fst);
+		iface->fst = NULL;
+	}
+#endif /* CONFIG_FST */
 	if (iface->interfaces && iface->interfaces->terminate_on_error)
 		eloop_terminate();
 	return -1;
@@ -1643,6 +1812,13 @@ void hostapd_interface_deinit(struct hostapd_iface *iface)
 	eloop_cancel_timeout(channel_list_update_timeout, iface, NULL);
 	iface->wait_channel_update = 0;
 
+#ifdef CONFIG_FST
+	if (iface->fst) {
+		fst_detach(iface->fst);
+		iface->fst = NULL;
+	}
+#endif /* CONFIG_FST */
+
 	for (j = iface->num_bss - 1; j >= 0; j--)
 		hostapd_bss_deinit(iface->bss[j]);
 }
@@ -2029,7 +2205,7 @@ hostapd_iface_alloc(struct hapd_interfaces *interfaces)
 
 static struct hostapd_config *
 hostapd_config_alloc(struct hapd_interfaces *interfaces, const char *ifname,
-		     const char *ctrl_iface)
+		     const char *ctrl_iface, const char *driver)
 {
 	struct hostapd_bss_config *bss;
 	struct hostapd_config *conf;
@@ -2042,6 +2218,21 @@ hostapd_config_alloc(struct hapd_interfaces *interfaces, const char *ifname,
 		return NULL;
 	}
 
+	if (driver) {
+		int j;
+
+		for (j = 0; wpa_drivers[j]; j++) {
+			if (os_strcmp(driver, wpa_drivers[j]->name) == 0) {
+				conf->driver = wpa_drivers[j];
+				goto skip;
+			}
+		}
+
+		wpa_printf(MSG_ERROR,
+			   "Invalid/unknown driver '%s' - registering the default driver",
+			   driver);
+	}
+
 	conf->driver = wpa_drivers[0];
 	if (conf->driver == NULL) {
 		wpa_printf(MSG_ERROR, "No driver wrappers registered!");
@@ -2049,6 +2240,7 @@ hostapd_config_alloc(struct hapd_interfaces *interfaces, const char *ifname,
 		return NULL;
 	}
 
+skip:
 	bss = conf->last_bss = conf->bss[0];
 
 	os_strlcpy(bss->iface, ifname, sizeof(bss->iface));
@@ -2209,8 +2401,14 @@ int hostapd_add_iface(struct hapd_interfaces *interfaces, char *buf)
 		if (conf && conf->bss)
 			os_strlcpy(conf->bss[0]->iface, buf,
 				   sizeof(conf->bss[0]->iface));
-	} else
-		conf = hostapd_config_alloc(interfaces, buf, ptr);
+	} else {
+		char *driver = os_strchr(ptr, ' ');
+
+		if (driver)
+			*driver++ = '\0';
+		conf = hostapd_config_alloc(interfaces, buf, ptr, driver);
+	}
+
 	if (conf == NULL || conf->bss == NULL) {
 		wpa_printf(MSG_ERROR, "%s: Failed to allocate memory "
 			   "for configuration", __func__);
@@ -2722,4 +2920,43 @@ hostapd_switch_channel_fallback(struct hostapd_iface *iface,
 	hostapd_enable_iface(iface);
 }
 
+
+struct hostapd_data * hostapd_get_iface(struct hapd_interfaces *interfaces,
+					const char *ifname)
+{
+	size_t i, j;
+
+	for (i = 0; i < interfaces->count; i++) {
+		struct hostapd_iface *iface = interfaces->iface[i];
+
+		for (j = 0; j < iface->num_bss; j++) {
+			struct hostapd_data *hapd = iface->bss[j];
+
+			if (os_strcmp(ifname, hapd->conf->iface) == 0)
+				return hapd;
+		}
+	}
+
+	return NULL;
+}
+
 #endif /* NEED_AP_MLME */
+
+
+void hostapd_periodic_iface(struct hostapd_iface *iface)
+{
+	size_t i;
+
+	ap_list_timer(iface);
+
+	for (i = 0; i < iface->num_bss; i++) {
+		struct hostapd_data *hapd = iface->bss[i];
+
+		if (!hapd->started)
+			continue;
+
+#ifndef CONFIG_NO_RADIUS
+		hostapd_acl_expire(hapd);
+#endif /* CONFIG_NO_RADIUS */
+	}
+}