WNM: Add STA flag to indicate the current WNM-Sleep-Mode state

This can be useful for displaying the current STA state and also for
determining whether some operations are likely to fail or need
additional delay.

Signed-hostap: Jouni Malinen <j@w1.fi>

hostapd/dump_state.c

@@ -103,7 +103,7 @@ static void hostapd_dump_state(struct hostapd_data *hapd)
 		fprintf(f, "\nSTA=" MACSTR "\n", MAC2STR(sta->addr));
 
 		fprintf(f,
-			"  AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s"
+			"  AID=%d flags=0x%x %s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s"
 			"\n"
 			"  capability=0x%x listen_interval=%d\n",
 			sta->aid,
@@ -126,6 +126,10 @@ static void hostapd_dump_state(struct hostapd_data *hapd)
 			(sta->flags & WLAN_STA_WDS ? "[WDS]" : ""),
 			(sta->flags & WLAN_STA_NONERP ? "[NonERP]" : ""),
 			(sta->flags & WLAN_STA_WPS2 ? "[WPS2]" : ""),
+			(sta->flags & WLAN_STA_GAS ? "[GAS]" : ""),
+			(sta->flags & WLAN_STA_VHT ? "[VHT]" : ""),
+			(sta->flags & WLAN_STA_WNM_SLEEP_MODE ?
+			 "[WNM_SLEEP_MODE]" : ""),
 			sta->capability,
 			sta->listen_interval);
 

src/ap/drv_callbacks.c

@@ -299,6 +299,7 @@ skip_wpa_check:
 
 	new_assoc = (sta->flags & WLAN_STA_ASSOC) == 0;
 	sta->flags |= WLAN_STA_AUTH | WLAN_STA_ASSOC;
+	sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
 
 	if (reassoc && (sta->auth_alg == WLAN_AUTH_FT))
 		wpa_auth_sm_event(sta->wpa_sm, WPA_ASSOC_FT);

src/ap/ieee802_11.c

@@ -1931,6 +1931,7 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
 	if (sta->flags & WLAN_STA_ASSOC)
 		new_assoc = 0;
 	sta->flags |= WLAN_STA_ASSOC;
+	sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
 	if ((!hapd->conf->ieee802_1x && !hapd->conf->wpa) ||
 	    sta->auth_alg == WLAN_AUTH_FT) {
 		/*

src/ap/sta_info.h

@@ -29,6 +29,7 @@
 #define WLAN_STA_WPS2 BIT(16)
 #define WLAN_STA_GAS BIT(17)
 #define WLAN_STA_VHT BIT(18)
+#define WLAN_STA_WNM_SLEEP_MODE BIT(19)
 #define WLAN_STA_PENDING_DISASSOC_CB BIT(29)
 #define WLAN_STA_PENDING_DEAUTH_CB BIT(30)
 #define WLAN_STA_NONERP BIT(31)

src/ap/wnm_ap.c

@@ -155,6 +155,7 @@ static int ieee802_11_send_wnmsleep_resp(struct hostapd_data *hapd,
 		 */
 		if (wnmsleep_ie.status == WNM_STATUS_SLEEP_ACCEPT &&
 		    wnmsleep_ie.action_type == WNM_SLEEP_MODE_ENTER) {
+			sta->flags |= WLAN_STA_WNM_SLEEP_MODE;
 			hostapd_drv_wnm_oper(hapd, WNM_SLEEP_ENTER_CONFIRM,
 					     addr, NULL, NULL);
 			wpa_set_wnmsleep(sta->wpa_sm, 1);
@@ -168,6 +169,7 @@ static int ieee802_11_send_wnmsleep_resp(struct hostapd_data *hapd,
 		     wnmsleep_ie.status ==
 		     WNM_STATUS_SLEEP_EXIT_ACCEPT_GTK_UPDATE) &&
 		    wnmsleep_ie.action_type == WNM_SLEEP_MODE_EXIT) {
+			sta->flags &= ~WLAN_STA_WNM_SLEEP_MODE;
 			wpa_set_wnmsleep(sta->wpa_sm, 0);
 			hostapd_drv_wnm_oper(hapd, WNM_SLEEP_EXIT_CONFIRM,
 					     addr, NULL, NULL);