dbus: Add NonColoc6GHz and 6GHzOnly flags in wpa_supplicant scan

Handler function for "Scan" method call of a network device doesn't set
non_coloc_6ghz, therefore wpa_supplicant doesn't scan non-PSC channels
on 6GHz band only if a co-located AP was reported on the channel.

Add NonColoc6GHz and 6GHzOnly flags to the wpas_dbus_handler_scan, so
that dBus scan requests can cover non-PSC channels and scan only 6 GHz
channels.

Signed-off-by: Kaidong Wang <kaidong@chromium.org>

doc/dbus.doxygen

@@ -212,6 +212,8 @@ fi.w1.wpa_supplicant1.CreateInterface.
 	      <tr><td>IEs</td><td>aay</td><td>Information elements to used in active scan (applies only if scan type is active)</td><td>No</td>
 	      <tr><td>Channels</td><td>a(uu)</td><td>Array of frequencies to scan in form of (center, width) in MHz.</td><td>No</td>
 	      <tr><td>AllowRoam</td><td>b</td><td>TRUE (or absent) to allow a roaming decision based on the results of this scan, FALSE to prevent a roaming decision.</td><td>No</td>
+	      <tr><td>NonColoc6GHz</td><td>b</td><td>TRUE to force scanning of non-PSC 6 GHz channels, FALSE (or absent) to skip scanning of non-PSC 6 GHz channels.</td><td>No</td>
+	      <tr><td>6GHzOnly</td><td>b</td><td>TRUE to scan only 6 GHz channels, FALSE (or absent) to scan all channels. Applies only if Channels is absent.</td><td>No</td>
 	    </table>
 	  </dd>
 	</dl>

wpa_supplicant/dbus/dbus_new_handlers.c

@@ -1594,10 +1594,10 @@ static int wpas_dbus_get_scan_channels(DBusMessage *message,
 }
 
 
-static int wpas_dbus_get_scan_allow_roam(DBusMessage *message,
+static int wpas_dbus_get_scan_boolean(DBusMessage *message,
-					 DBusMessageIter *var,
+				      DBusMessageIter *var,
-					 dbus_bool_t *allow,
+				      dbus_bool_t *allow,
-					 DBusMessage **reply)
+				      DBusMessage **reply)
 {
 	if (dbus_message_iter_get_arg_type(var) != DBUS_TYPE_BOOLEAN) {
 		wpa_printf(MSG_DEBUG, "%s[dbus]: Type must be a boolean",
@@ -1630,6 +1630,8 @@ DBusMessage * wpas_dbus_handler_scan(DBusMessage *message,
 	struct wpa_driver_scan_params params;
 	size_t i;
 	dbus_bool_t allow_roam = 1;
+	dbus_bool_t non_coloc_6ghz = FALSE;
+	dbus_bool_t scan_6ghz_only = FALSE;
 
 	os_memset(&params, 0, sizeof(params));
 
@@ -1661,10 +1663,22 @@ DBusMessage * wpas_dbus_handler_scan(DBusMessage *message,
 							&params, &reply) < 0)
 				goto out;
 		} else if (os_strcmp(key, "AllowRoam") == 0) {
-			if (wpas_dbus_get_scan_allow_roam(message,
+			if (wpas_dbus_get_scan_boolean(message,
-							  &variant_iter,
+						       &variant_iter,
-							  &allow_roam,
+						       &allow_roam,
-							  &reply) < 0)
+						       &reply) < 0)
+				goto out;
+		} else if (os_strcmp(key, "NonColoc6GHz") == 0) {
+			if (wpas_dbus_get_scan_boolean(message,
+						       &variant_iter,
+						       &non_coloc_6ghz,
+						       &reply) < 0)
+				goto out;
+		} else if (os_strcmp(key, "6GHzOnly") == 0) {
+			if (wpas_dbus_get_scan_boolean(message,
+						       &variant_iter,
+						       &scan_6ghz_only,
+						       &reply) < 0)
 				goto out;
 		} else {
 			wpa_printf(MSG_DEBUG, "%s[dbus]: Unknown argument %s",
@@ -1683,6 +1697,13 @@ DBusMessage * wpas_dbus_handler_scan(DBusMessage *message,
 		goto out;
 	}
 
+	if (non_coloc_6ghz)
+		params.non_coloc_6ghz = 1;
+
+	if (scan_6ghz_only && !params.freqs)
+		wpa_add_scan_freqs_list(wpa_s, HOSTAPD_MODE_IEEE80211A, &params,
+					true, false, false);
+
 	if (os_strcmp(type, "passive") == 0) {
 		if (params.num_ssids || params.extra_ies_len) {
 			wpa_printf(MSG_DEBUG,