7 files changed, 63 insertions, 0 deletions
diff --git a/src/validators/ipv4 b/src/validators/ipv4
new file mode 100755
index 000000000..53face090
--- /dev/null
+++ b/src/validators/ipv4
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+ipaddrcheck --is-ipv4 $1
diff --git a/src/validators/ipv4-multicast b/src/validators/ipv4-multicast
new file mode 100755
index 000000000..e5cbc9532
--- /dev/null
+++ b/src/validators/ipv4-multicast
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+ipaddrcheck --is-ipv4-multicast $1
diff --git a/src/validators/ipv6-exclude b/src/validators/ipv6-exclude
new file mode 100755
index 000000000..893eeab09
--- /dev/null
+++ b/src/validators/ipv6-exclude
@@ -0,0 +1,7 @@
+#!/bin/sh
+arg="$1"
+if [ "${arg:0:1}" != "!" ]; then
+  exit 1
+fi
+path=$(dirname "$0")
+${path}/ipv6 "${arg:1}"
diff --git a/src/validators/ipv6-multicast b/src/validators/ipv6-multicast
new file mode 100755
index 000000000..66cd90c9c
--- /dev/null
+++ b/src/validators/ipv6-multicast
@@ -0,0 +1,3 @@
+#!/bin/sh
+
+ipaddrcheck --is-ipv6-multicast $1
diff --git a/src/validators/ipv6-range b/src/validators/ipv6-range
new file mode 100755
index 000000000..033b6461b
--- /dev/null
+++ b/src/validators/ipv6-range
@@ -0,0 +1,16 @@
+#!/usr/bin/python3
+
+import sys
+import re
+from vyos.template import is_ipv6
+
+if __name__ == '__main__':
+    if len(sys.argv)>1:
+        ipv6_range = sys.argv[1]
+        # Regex for ipv6-ipv6 https://regexr.com/
+        if re.search('([a-f0-9:]+:+)+[a-f0-9]+-([a-f0-9:]+:+)+[a-f0-9]+', ipv6_range):
+            for tmp in ipv6_range.split('-'):
+                if not is_ipv6(tmp):
+                    sys.exit(1)
+
+    sys.exit(0)
diff --git a/src/validators/ipv6-range-exclude b/src/validators/ipv6-range-exclude
new file mode 100755
index 000000000..912b55ae3
--- /dev/null
+++ b/src/validators/ipv6-range-exclude
@@ -0,0 +1,7 @@
+#!/bin/sh
+arg="$1"
+if [ "${arg:0:1}" != "!" ]; then
+  exit 1
+fi
+path=$(dirname "$0")
+${path}/ipv6-range "${arg:1}"
diff --git a/src/validators/sysctl b/src/validators/sysctl
new file mode 100755
index 000000000..9b5bba3e1
--- /dev/null
+++ b/src/validators/sysctl
@@ -0,0 +1,24 @@
+#!/bin/sh
+#
+# Copyright (C) 2021 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+declare -a array
+eval "array=($(/sbin/sysctl -N -a))"
+
+if [[ ! " ${array[@]} " =~ " $1 " ]]; then
+    # passed sysctl option is invalid
+    exit 1
+fi
+exit 0