Add ctrl_iface events for AP mode STA connect/disconnect

These are used to notify ctrl_iface monitors when a STA completes
connection (the port becomes authorized) and when a STA disconnects.

hostapd/ieee802_11.c

@@ -36,6 +36,7 @@
 #include "accounting.h"
 #include "driver_i.h"
 #include "mlme.h"
+#include "wpa_ctrl.h"
 
 
 u8 * hostapd_eid_supp_rates(struct hostapd_data *hapd, u8 *eid)
@@ -1198,6 +1199,8 @@ static void handle_disassoc(struct hostapd_data *hapd,
 	}
 
 	sta->flags &= ~WLAN_STA_ASSOC;
+	wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED MACSTR,
+		MAC2STR(sta->addr));
 	wpa_auth_sm_event(sta->wpa_sm, WPA_DISASSOC);
 	hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 		       HOSTAPD_LEVEL_INFO, "disassociated");
@@ -1246,6 +1249,8 @@ static void handle_deauth(struct hostapd_data *hapd,
 	}
 
 	sta->flags &= ~(WLAN_STA_AUTH | WLAN_STA_ASSOC);
+	wpa_msg(hapd->msg_ctx, MSG_INFO, AP_STA_DISCONNECTED MACSTR,
+		MAC2STR(sta->addr));
 	wpa_auth_sm_event(sta->wpa_sm, WPA_DEAUTH);
 	hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE80211,
 		       HOSTAPD_LEVEL_DEBUG, "deauthenticated");
@@ -1661,6 +1666,8 @@ static void handle_assoc_cb(struct hostapd_data *hapd,
 	if (!hapd->conf->ieee802_1x && !hapd->conf->wpa) {
 		/* Open or static WEP; no separate authorization */
 		sta->flags |= WLAN_STA_AUTHORIZED;
+		wpa_msg(hapd->msg_ctx, MSG_INFO,
+			AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr));
 	}
 
 	if (reassoc)

hostapd/ieee802_1x.c

@@ -31,6 +31,7 @@
 #include "hw_features.h"
 #include "eap_server/eap.h"
 #include "ieee802_11_defs.h"
+#include "wpa_ctrl.h"
 
 
 static void ieee802_1x_finished(struct hostapd_data *hapd,
@@ -83,12 +84,20 @@ void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
 		return;
 
 	if (authorized) {
+		if (!(sta->flags & WLAN_STA_AUTHORIZED))
+			wpa_msg(hapd->msg_ctx, MSG_INFO,
+				AP_STA_CONNECTED MACSTR, MAC2STR(sta->addr));
 		sta->flags |= WLAN_STA_AUTHORIZED;
 		res = hostapd_sta_set_flags(hapd, sta->addr, sta->flags,
 					    WLAN_STA_AUTHORIZED, ~0);
 		hostapd_logger(hapd, sta->addr, HOSTAPD_MODULE_IEEE8021X,
 			       HOSTAPD_LEVEL_DEBUG, "authorizing port");
 	} else {
+		if ((sta->flags & (WLAN_STA_AUTHORIZED | WLAN_STA_ASSOC)) ==
+		    (WLAN_STA_AUTHORIZED | WLAN_STA_ASSOC))
+			wpa_msg(hapd->msg_ctx, MSG_INFO,
+				AP_STA_DISCONNECTED MACSTR,
+				MAC2STR(sta->addr));
 		sta->flags &= ~WLAN_STA_AUTHORIZED;
 		res = hostapd_sta_set_flags(hapd, sta->addr, sta->flags,
 					    0, ~WLAN_STA_AUTHORIZED);

src/common/wpa_ctrl.h

@@ -74,6 +74,8 @@ extern "C" {
 #define WPS_EVENT_NEW_AP_SETTINGS "WPS-NEW-AP-SETTINGS "
 #define WPS_EVENT_REG_SUCCESS "WPS-REG-SUCCESS "
 #define WPS_EVENT_AP_SETUP_LOCKED "WPS-AP-SETUP-LOCKED "
+#define AP_STA_CONNECTED "AP-STA-CONNECTED "
+#define AP_STA_DISCONNECTED "AP-STA-DISCONNECTED "
 
 
 /* wpa_supplicant/hostapd control interface access */