1 files changed, 27 insertions, 0 deletions
diff --git a/src/validators/mac-address-firewall b/src/validators/mac-address-firewall
new file mode 100755
index 000000000..70551f86d
--- /dev/null
+++ b/src/validators/mac-address-firewall
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2018-2022 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import re
+import sys
+
+pattern = "^!?([0-9A-Fa-f]{2}:){5}([0-9A-Fa-f]{2})$"
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        sys.exit(1)
+    if not re.match(pattern, sys.argv[1]):
+        sys.exit(1)
+    sys.exit(0)