Include connected time in AP mode STA-* commands

This allows hostapd_cli and wpa_cli all_sta command to be used to
display connected time (in seconds) of each station in AP mode.

Signed-hostap: Raja Mani <rmani@qca.qualcomm.com>

src/ap/ctrl_iface_ap.c

@@ -21,6 +21,28 @@
 #include "ap_drv_ops.h"
 
 
+static int hostapd_get_sta_conn_time(struct sta_info *sta,
+				     char *buf, size_t buflen)
+{
+	struct os_time now, age;
+	int len = 0, ret;
+
+	if (!sta->connected_time.sec)
+		return 0;
+
+	os_get_time(&now);
+	os_time_sub(&now, &sta->connected_time, &age);
+
+	ret = os_snprintf(buf + len, buflen - len, "connected_time=%u\n",
+			  (unsigned int) age.sec);
+	if (ret < 0 || (size_t) ret >= buflen - len)
+		return len;
+	len += ret;
+
+	return len;
+}
+
+
 static int hostapd_ctrl_iface_sta_mib(struct hostapd_data *hapd,
 				      struct sta_info *sta,
 				      char *buf, size_t buflen)
@@ -58,6 +80,10 @@ static int hostapd_ctrl_iface_sta_mib(struct hostapd_data *hapd,
 	if (res >= 0)
 		len += res;
 
+	res = hostapd_get_sta_conn_time(sta, buf + len, buflen - len);
+	if (res >= 0)
+		len += res;
+
 	return len;
 }
 

src/ap/hostapd.c

@@ -1373,8 +1373,10 @@ void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *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. */
-	if (!hapd->conf->ieee802_1x && !hapd->conf->wpa)
+	if (!hapd->conf->ieee802_1x && !hapd->conf->wpa) {
+		os_get_time(&sta->connected_time);
 		accounting_sta_start(hapd, sta);
+	}
 
 	/* Start IEEE 802.1X authentication process for new stations */
 	ieee802_1x_new_station(hapd, sta);

src/ap/ieee802_1x.c

@@ -99,8 +99,10 @@ void ieee802_1x_set_sta_authorized(struct hostapd_data *hapd,
 		       "driver (errno=%d).\n", MAC2STR(sta->addr), errno);
 	}
 
-	if (authorized)
+	if (authorized) {
+		os_get_time(&sta->connected_time);
 		accounting_sta_start(hapd, sta);
+	}
 }
 
 

src/ap/sta_info.h

@@ -121,6 +121,8 @@ struct sta_info {
 
 	struct wpabuf *wps_ie; /* WPS IE from (Re)Association Request */
 	struct wpabuf *p2p_ie; /* P2P IE from (Re)Association Request */
+
+	struct os_time connected_time;
 };