4 files changed, 117 insertions, 6 deletions
diff --git a/src/validators/base64 b/src/validators/base64
new file mode 100755
index 000000000..e2b1e730d
--- /dev/null
+++ b/src/validators/base64
@@ -0,0 +1,27 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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 base64
+from sys import argv
+
+if __name__ == '__main__':
+    if len(argv) != 2:
+        exit(1)
+    try:
+        base64.b64decode(argv[1])
+    except:
+        exit(1)
+    exit(0)
diff --git a/src/validators/bgp-large-community-list b/src/validators/bgp-large-community-list
new file mode 100755
index 000000000..c07268e81
--- /dev/null
+++ b/src/validators/bgp-large-community-list
@@ -0,0 +1,36 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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
+
+from vyos.template import is_ipv4
+
+pattern = '(.*):(.*):(.*)'
+
+if __name__ == '__main__':
+    if len(sys.argv) != 2:
+        sys.exit(1)
+
+    value = sys.argv[1].split(':')
+    if not len(value) == 3:
+        sys.exit(1)
+
+    if not (re.match(pattern, sys.argv[1]) and
+           (is_ipv4(value[0]) or value[0].isdigit()) and value[1].isdigit()):
+        sys.exit(1)
+
+    sys.exit(0)
diff --git a/src/validators/bgp-route-target b/src/validators/bgp-route-target
new file mode 100755
index 000000000..e7e4d403f
--- /dev/null
+++ b/src/validators/bgp-route-target
@@ -0,0 +1,51 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 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/>.
+
+from argparse import ArgumentParser
+from vyos.template import is_ipv4
+
+parser = ArgumentParser()
+group = parser.add_mutually_exclusive_group()
+group.add_argument('--single', action='store', help='Validate and allow only one route-target')
+group.add_argument('--multi', action='store', help='Validate multiple, whitespace separated route-targets')
+args = parser.parse_args()
+
+def is_valid_rt(rt):
+    # every route target needs to have a colon and must consists of two parts
+    value = rt.split(':')
+    if len(value) != 2:
+        return False
+    # A route target must either be only numbers, or the first part must be an
+    # IPv4 address
+    if (is_ipv4(value[0]) or value[0].isdigit()) and value[1].isdigit():
+        return True
+    return False
+
+if __name__ == '__main__':
+    if args.single:
+        if not is_valid_rt(args.single):
+            exit(1)
+
+    elif args.multi:
+        for rt in args.multi.split(' '):
+            if not is_valid_rt(rt):
+                exit(1)
+
+    else:
+        parser.print_help()
+        exit(1)
+
+    exit(0)
diff --git a/src/validators/script b/src/validators/script
index 2665ec1f6..1d8a27e5c 100755
--- a/src/validators/script
+++ b/src/validators/script
@@ -1,8 +1,6 @@
 #!/usr/bin/env python3
 #
-# numeric value validator
-#
-# Copyright (C) 2018 VyOS maintainers and contributors
+# Copyright (C) 2018-2021 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
@@ -23,7 +21,6 @@ import shlex
 
 import vyos.util
 
-
 if __name__ == '__main__':
     if len(sys.argv) < 2:
         sys.exit('Please specify script file to check')
@@ -35,11 +32,11 @@ if __name__ == '__main__':
         sys.exit(f'File {script} does not exist')
 
     if not (os.path.isfile(script) and os.access(script, os.X_OK)):
-        sys.exit('File {script} is not an executable file')
+        sys.exit(f'File {script} is not an executable file')
 
     # File outside the config dir is just a warning
     if not vyos.util.file_is_persistent(script):
         sys.exit(
-            'Warning: file {path} is outside the / config directory\n'
+            f'Warning: file {path} is outside the / config directory\n'
             'It will not be automatically migrated to a new image on system update'
         )