1 files changed, 52 insertions, 0 deletions
diff --git a/src/validators/port-multi b/src/validators/port-multi
new file mode 100644
index 0000000..ed6ff68
--- /dev/null
+++ b/src/validators/port-multi
@@ -0,0 +1,52 @@
+#!/usr/bin/python3
+
+from sys import argv
+from sys import exit
+import re
+
+from vyos.utils.file import read_file
+
+services_file = '/etc/services'
+
+def get_services():
+    names = []
+    service_data = read_file(services_file, "")
+    for line in service_data.split("\n"):
+        if not line or line[0] == '#':
+            continue
+        tmp = line.split()
+        names.append(tmp[0])
+        if len(tmp) > 2:
+            # Add port aliases to service list, too
+            names.extend(tmp[2:])
+    # remove duplicate entries (e.g. echo) from list
+    names = list(dict.fromkeys(names))
+    return names
+
+if __name__ == '__main__':
+    if len(argv)>1:
+        ports = argv[1].split(",")
+        services = get_services()
+
+        for port in ports:
+            if port and port[0] == '!':
+                port = port[1:]
+            if re.match('^[0-9]{1,5}-[0-9]{1,5}$', port):
+                port_1, port_2 = port.split('-')
+                if int(port_1) not in range(1, 65536) or int(port_2) not in range(1, 65536):
+                    print(f'Error: {port} is not a valid port range')
+                    exit(1)
+                if int(port_1) > int(port_2):
+                    print(f'Error: {port} is not a valid port range')
+                    exit(1)
+            elif port.isnumeric():
+                if int(port) not in range(1, 65536):
+                    print(f'Error: {port} is not a valid port')
+                    exit(1)
+            elif port not in services:
+                print(f'Error: {port} is not a valid service name')
+                exit(1)
+    else:
+        exit(2)
+
+    exit(0)