2 files changed, 92 insertions, 0 deletions
diff --git a/op-mode-definitions/dynamic-dns.xml b/op-mode-definitions/dynamic-dns.xml
new file mode 100644
index 000000000..c67769a83
--- /dev/null
+++ b/op-mode-definitions/dynamic-dns.xml
@@ -0,0 +1,25 @@
+<?xml version="1.0"?>
+
+<interfaceDefinition>
+  <node name="show">
+    <children>
+      <node name="dns">
+        <children>
+          <node name="dynamic">
+            <properties>
+              <help>Show Dynamic DNS information</help>
+            </properties>
+            <children>
+              <leafNode name="status">
+                <properties>
+                  <help>Show Dynamic DNS status</help>
+                </properties>
+                <command>sudo ${vyos_op_scripts_dir}/dynamic_dns_status.py</command>
+              </leafNode>
+            </children>
+          </node>
+        </children>
+      </node>
+    </children>
+  </node>
+</interfaceDefinition>
diff --git a/src/op_mode/dynamic_dns_status.py b/src/op_mode/dynamic_dns_status.py
new file mode 100755
index 000000000..bbff01f49
--- /dev/null
+++ b/src/op_mode/dynamic_dns_status.py
@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+
+import jinja2
+import sys
+import time
+
+from vyos.config import Config
+
+cache_file = r'/var/cache/ddclient/ddclient.cache'
+
+OUT_TMPL_SRC = """
+{%- for entry in hosts -%}
+ip address   : {{ entry.ip }}
+host-name    : {{ entry.host }}
+last update  : {{ entry.time }}
+update-status: {{ entry.status }}
+
+{% endfor -%}
+"""
+
+if __name__ == '__main__':
+    # Do nothing if service is not configured
+    c = Config()
+    if not c.exists_effective('service dns dynamic'):
+        print("Dynamic DNS not configured")
+        sys.exit(0)
+
+    data = {
+        'hosts': []
+    }
+
+    with open(cache_file, 'r') as f:
+        for line in f:
+            if line.startswith('#'):
+                continue
+
+            outp = {
+                'host': '',
+                'ip': '',
+                'time': ''
+            }
+
+            if 'host=' in line:
+                host = line.split('host=')[1]
+                if host:
+                    outp['host'] = host.split(',')[0]
+
+            if 'ip=' in line:
+                ip = line.split('ip=')[1]
+                if ip:
+                    outp['ip'] = ip.split(',')[0]
+
+            if 'atime=' in line:
+                atime = line.split('atime=')[1]
+                if atime:
+                    tmp = atime.split(',')[0]
+                    outp['time'] = time.strftime("%Y-%m-%d %H:%M:%S", time.gmtime(int(tmp, base=10)))
+
+            if 'status=' in line:
+                status = line.split('status=')[1]
+                if status:
+                    outp['status'] = status.split(',')[0]
+
+            data['hosts'].append(outp)
+
+    tmpl = jinja2.Template(OUT_TMPL_SRC)
+    print(tmpl.render(data))