1 files changed, 15 insertions, 0 deletions
diff --git a/kvmd/validators/kvm.py b/kvmd/validators/kvm.py
index e99929af..29b45500 100644
--- a/kvmd/validators/kvm.py
+++ b/kvmd/validators/kvm.py
@@ -20,10 +20,13 @@
 # ========================================================================== #
 
 
+import re
+
 from typing import Any
 
 from .. import keymap
 
+from . import check_not_none_string
 from . import check_string_in_list
 
 from .basic import valid_number
@@ -38,6 +41,18 @@ def valid_atx_button(arg: Any) -> str:
     return check_string_in_list(arg, "ATX button", ["power", "power_long", "reset"])
 
 
+def valid_msd_image_name(arg: Any) -> str:
+    if len(str(arg).strip()) == 0:
+        arg = None
+    arg = check_not_none_string(arg, "MSD image name", strip=True)
+    arg = re.sub(r"[^\w\.+@()\[\]-]", "_", arg)
+    if arg == ".":
+        arg = "_"
+    if arg == "..":
+        arg = "__"
+    return arg[:255]
+
+
 def valid_log_seek(arg: Any) -> int:
     return int(valid_number(arg, min=0, name="log seek"))