From a2b6098e6f9c1915a61a9aebc8f9852bd897387c Mon Sep 17 00:00:00 2001
From: Lucas Christian <lucas@lucasec.com>
Date: Sun, 11 Aug 2024 15:18:38 -0700
Subject: T6648: dhcpv6-server: align stateless DHCPv6 options with stateful

---
 interface-definitions/include/dhcp/option-v6.xml.i | 12 +++++++++
 .../include/version/dhcpv6-server-version.xml.i    |  2 +-
 interface-definitions/service_dhcpv6-server.xml.in | 22 +--------------
 python/vyos/template.py                            |  4 +--
 src/migration-scripts/dhcpv6-server/5-to-6         | 31 ++++++++++++++++++++++
 5 files changed, 47 insertions(+), 24 deletions(-)
 create mode 100644 src/migration-scripts/dhcpv6-server/5-to-6

diff --git a/interface-definitions/include/dhcp/option-v6.xml.i b/interface-definitions/include/dhcp/option-v6.xml.i
index 1df0c3934..e1897f52d 100644
--- a/interface-definitions/include/dhcp/option-v6.xml.i
+++ b/interface-definitions/include/dhcp/option-v6.xml.i
@@ -78,6 +78,18 @@
         <multi/>
       </properties>
     </leafNode>
+    <leafNode name="info-refresh-time">
+      <properties>
+      <help>Time (in seconds) that stateless clients should wait between refreshing the information they were given</help>
+      <valueHelp>
+        <format>u32:1-4294967295</format>
+        <description>DHCPv6 information refresh time</description>
+      </valueHelp>
+      <constraint>
+        <validator name="numeric" argument="--range 1-4294967295"/>
+      </constraint>
+      </properties>
+    </leafNode>
     <node name="vendor-option">
       <properties>
         <help>Vendor Specific Options</help>
diff --git a/interface-definitions/include/version/dhcpv6-server-version.xml.i b/interface-definitions/include/version/dhcpv6-server-version.xml.i
index 1f30368a3..8b72a9c72 100644
--- a/interface-definitions/include/version/dhcpv6-server-version.xml.i
+++ b/interface-definitions/include/version/dhcpv6-server-version.xml.i
@@ -1,3 +1,3 @@
 <!-- include start from include/version/dhcpv6-server-version.xml.i -->
-<syntaxVersion component='dhcpv6-server' version='5'></syntaxVersion>
+<syntaxVersion component='dhcpv6-server' version='6'></syntaxVersion>
 <!-- include end -->
diff --git a/interface-definitions/service_dhcpv6-server.xml.in b/interface-definitions/service_dhcpv6-server.xml.in
index daca7b43f..cf14388e8 100644
--- a/interface-definitions/service_dhcpv6-server.xml.in
+++ b/interface-definitions/service_dhcpv6-server.xml.in
@@ -63,27 +63,7 @@
                   </constraint>
                 </properties>
               </leafNode>
-              <node name="common-options">
-                <properties>
-                  <help>Common options to distribute to all clients, including stateless clients</help>
-                </properties>
-                <children>
-                  <leafNode name="info-refresh-time">
-                    <properties>
-                      <help>Time (in seconds) that stateless clients should wait between refreshing the information they were given</help>
-                      <valueHelp>
-                        <format>u32:1-4294967295</format>
-                        <description>DHCPv6 information refresh time</description>
-                      </valueHelp>
-                      <constraint>
-                        <validator name="numeric" argument="--range 1-4294967295"/>
-                      </constraint>
-                    </properties>
-                  </leafNode>
-                  #include <include/dhcp/domain-search.xml.i>
-                  #include <include/name-server-ipv6.xml.i>
-                </children>
-              </node>
+              #include <include/dhcp/option-v6.xml.i>
               <tagNode name="subnet">
                 <properties>
                   <help>IPv6 DHCP subnet for this shared network</help>
diff --git a/python/vyos/template.py b/python/vyos/template.py
index 3507e0940..aa99bed5a 100644
--- a/python/vyos/template.py
+++ b/python/vyos/template.py
@@ -922,8 +922,8 @@ def kea6_shared_network_json(shared_networks):
             'subnet6': []
         }
 
-        if 'common_options' in config:
-            network['option-data'] = kea6_parse_options(config['common_options'])
+        if 'option' in config:
+            network['option-data'] = kea6_parse_options(config['option'])
 
         if 'interface' in config:
             network['interface'] = config['interface']
diff --git a/src/migration-scripts/dhcpv6-server/5-to-6 b/src/migration-scripts/dhcpv6-server/5-to-6
new file mode 100644
index 000000000..cad0a3538
--- /dev/null
+++ b/src/migration-scripts/dhcpv6-server/5-to-6
@@ -0,0 +1,31 @@
+# Copyright 2024 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# This library 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
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library.  If not, see <http://www.gnu.org/licenses/>.
+
+# T6648: Rename "common-options" to "option" at shared-network level
+
+from vyos.configtree import ConfigTree
+
+base = ['service', 'dhcpv6-server', 'shared-network-name']
+
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        # Nothing to do
+        return
+
+    for network in config.list_nodes(base):
+        if not config.exists(base + [network, 'common-options']):
+            continue
+
+        config.rename(base + [network, 'common-options'], 'option')
-- 
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