WNM: Add option to disable keep-alive frames for testing purposes

"wpa_cli set no_keep_alive 1/0" can now be used to disable/enable
keep alive frames to enable testing.

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

wpa_supplicant/ctrl_iface.c

@@ -415,6 +415,8 @@ static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant *wpa_s,
 		ret = set_bssid_filter(wpa_s, value);
 	} else if (os_strcasecmp(cmd, "disallow_aps") == 0) {
 		ret = set_disallow_aps(wpa_s, value);
+	} else if (os_strcasecmp(cmd, "no_keep_alive") == 0) {
+		wpa_s->no_keep_alive = !!atoi(value);
 	} else {
 		value[-1] = '=';
 		ret = wpa_config_process_global(wpa_s->conf, cmd, -1);

wpa_supplicant/events.c

@@ -1316,12 +1316,16 @@ static void wnm_bss_keep_alive(void *eloop_ctx, void *sock_ctx)
 	if (wpa_s->wpa_state < WPA_ASSOCIATED)
 		return;
 
-	wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
-		   MAC2STR(wpa_s->bssid));
-	/* TODO: could skip this if normal data traffic has been sent */
-	/* TODO: Consider using some more appropriate data frame for this */
-	if (wpa_s->l2)
-		l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800, (u8 *) "", 0);
+	if (!wpa_s->no_keep_alive) {
+		wpa_printf(MSG_DEBUG, "WNM: Send keep-alive to AP " MACSTR,
+			   MAC2STR(wpa_s->bssid));
+		/* TODO: could skip this if normal data traffic has been sent */
+		/* TODO: Consider using some more appropriate data frame for
+		 * this */
+		if (wpa_s->l2)
+			l2_packet_send(wpa_s->l2, wpa_s->bssid, 0x0800,
+				       (u8 *) "", 0);
+	}
 
 #ifdef CONFIG_SME
 	if (wpa_s->sme.bss_max_idle_period) {

wpa_supplicant/wpa_supplicant_i.h

@@ -668,6 +668,8 @@ struct wpa_supplicant {
 	struct wpabuf *last_gas_resp;
 	u8 last_gas_addr[ETH_ALEN];
 	u8 last_gas_dialog_token;
+
+	unsigned int no_keep_alive:1;
 };