technology: check validity of given properties for tethering

A WPA2 passphrase is between 8 and 63 characters,
a SSID name is between 1 and 32 characters.

diff --git a/src/technology.c b/src/technology.c
index ad555c9..6d020cb 100644 (file)
--- a/src/technology.c
+++ b/src/technology.c
@@ -755,6 +755,9 @@ static DBusMessage *set_property(DBusConnection *conn,
                if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
                        return __connman_error_not_supported(msg);
 
+               if (strlen(str) < 1 || strlen(str) > 32)
+                       return __connman_error_invalid_arguments(msg);
+
                technology->tethering_ident = g_strdup(str);
        } else if (g_str_equal(name, "TetheringPassphrase") == TRUE) {
                const char *str;
@@ -764,8 +767,8 @@ static DBusMessage *set_property(DBusConnection *conn,
                if (technology->type != CONNMAN_SERVICE_TYPE_WIFI)
                        return __connman_error_not_supported(msg);
 
-               if (strlen(str) < 8)
-                       return __connman_error_invalid_arguments(msg);
+               if (strlen(str) < 8 || strlen(str) > 63)
+                       return __connman_error_passphrase_required(msg);
 
                technology->tethering_passphrase = g_strdup(str);
        } else if (g_str_equal(name, "Powered") == TRUE) {