3 files changed, 69 insertions, 9 deletions
diff --git a/src/validators/base64 b/src/validators/base64
index e2b1e730d..a54168ef7 100755
--- a/src/validators/base64
+++ b/src/validators/base64
@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 #
-# Copyright (C) 2021 VyOS maintainers and contributors
+# Copyright (C) 2021-2025 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
@@ -15,13 +15,17 @@
 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
 import base64
-from sys import argv
+import argparse
 
-if __name__ == '__main__':
-    if len(argv) != 2:
-        exit(1)
-    try:
-        base64.b64decode(argv[1])
-    except:
+parser = argparse.ArgumentParser(description="Validate base64 input.")
+parser.add_argument("base64", help="Base64 encoded string to validate")
+parser.add_argument("--decoded-len", type=int, help="Optional list of valid lengths for the decoded input")
+args = parser.parse_args()
+
+try:
+    decoded = base64.b64decode(args.base64)
+    if args.decoded_len and len(decoded) != args.decoded_len:
         exit(1)
-    exit(0)
+except:
+    exit(1)
+exit(0)
diff --git a/src/validators/cpu b/src/validators/cpu
new file mode 100755
index 000000000..959a49248
--- /dev/null
+++ b/src/validators/cpu
@@ -0,0 +1,43 @@
+#!/usr/bin/python3
+
+import re
+import sys
+
+MAX_CPU = 511
+
+
+def validate_isolcpus(value):
+    pattern = re.compile(r'^(\d{1,3}(-\d{1,3})?)(,(\d{1,3}(-\d{1,3})?))*$')
+    if not pattern.fullmatch(value):
+        return False
+
+    flat_list = []
+    for part in value.split(','):
+        if '-' in part:
+            start, end = map(int, part.split('-'))
+            if start > end or start < 0 or end > MAX_CPU:
+                return False
+            flat_list.extend(range(start, end + 1))
+        else:
+            num = int(part)
+            if num < 0 or num > MAX_CPU:
+                return False
+            flat_list.append(num)
+
+    for i in range(1, len(flat_list)):
+        if flat_list[i] <= flat_list[i - 1]:
+            return False
+
+    return True
+
+
+if __name__ == "__main__":
+    if len(sys.argv) != 2:
+        print("Usage: python3 cpu.py <cpu_list>")
+        sys.exit(1)
+
+    input_value = sys.argv[1]
+    if validate_isolcpus(input_value):
+        sys.exit(0)
+    else:
+        sys.exit(1)
diff --git a/src/validators/ethernet-interface b/src/validators/ethernet-interface
new file mode 100644
index 000000000..2bf92812e
--- /dev/null
+++ b/src/validators/ethernet-interface
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+if ! [[ "$1" =~ ^(lan|eth|eno|ens|enp|enx)[0-9]+$ ]]; then
+    echo "Error: $1 is not an ethernet interface"
+    exit 1
+fi
+
+if ! [ -d "/sys/class/net/$1" ]; then
+    echo "Error: $1 interface does not exist in the system"
+    exit 1
+fi
+
+exit 0