Add WPA_BSS_MASK_DELIM flag to BSS command

This flag will add ==== delimiter between to separate bss results.
Unlike the other BSS command MASK values, this delimiter is not
included by default to avoid issues with existing users of the BSS
command.

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

src/common/wpa_ctrl.h

@@ -151,7 +151,7 @@ extern "C" {
 
 /* BSS command information masks */
 
-#define WPA_BSS_MASK_ALL		0xFFFFFFFF
+#define WPA_BSS_MASK_ALL		0xFFFDFFFF
 #define WPA_BSS_MASK_ID			BIT(0)
 #define WPA_BSS_MASK_BSSID		BIT(1)
 #define WPA_BSS_MASK_FREQ		BIT(2)
@@ -169,6 +169,7 @@ extern "C" {
 #define WPA_BSS_MASK_P2P_SCAN		BIT(14)
 #define WPA_BSS_MASK_INTERNETW		BIT(15)
 #define WPA_BSS_MASK_WIFI_DISPLAY	BIT(16)
+#define WPA_BSS_MASK_DELIM		BIT(17)
 
 
 /* wpa_supplicant/hostapd control interface access */

wpa_supplicant/ctrl_iface.c

@@ -3225,6 +3225,13 @@ static int print_bss_info(struct wpa_supplicant *wpa_s, struct wpa_bss *bss,
 	}
 #endif /* CONFIG_INTERWORKING */
 
+	if (mask & WPA_BSS_MASK_DELIM) {
+		ret = os_snprintf(pos, end - pos, "====\n");
+		if (ret < 0 || ret >= end - pos)
+			return 0;
+		pos += ret;
+	}
+
 	return pos - buf;
 }