1 files changed, 71 insertions, 0 deletions
diff --git a/src/migration-scripts/system/23-to-24 b/src/migration-scripts/system/23-to-24
new file mode 100644
index 0000000..feb62bc
--- /dev/null
+++ b/src/migration-scripts/system/23-to-24
@@ -0,0 +1,71 @@
+# Copyright 2022-2024 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/>.
+
+from ipaddress import ip_interface
+from ipaddress import ip_address
+
+from vyos.configtree import ConfigTree
+from vyos.template import is_ipv4
+
+base = ['protocols', 'static', 'arp']
+tmp_base = ['protocols', 'static', 'arp-tmp']
+
+def fixup_cli(config, path, interface, host):
+    if config.exists(path + ['address']):
+        for address in config.return_values(path + ['address']):
+            tmp = ip_interface(address)
+            # ARP is only available for IPv4 ;-)
+            if not is_ipv4(tmp):
+                continue
+            if ip_address(host) in tmp.network.hosts():
+                mac = config.return_value(tmp_base + [host, 'hwaddr'])
+                iface_path = ['protocols', 'static', 'arp', 'interface']
+                config.set(iface_path + [interface, 'address', host, 'mac'], value=mac)
+                config.set_tag(iface_path)
+                config.set_tag(iface_path + [interface, 'address'])
+                continue
+
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        # Nothing to do
+        return
+
+    # We need a temporary copy of the config tree as the original one needs to be
+    # deleted first due to a change iun thge tagNode structure.
+    config.copy(base, tmp_base)
+    config.delete(base)
+
+    for host in config.list_nodes(tmp_base):
+        for type in config.list_nodes(['interfaces']):
+            for interface in config.list_nodes(['interfaces', type]):
+                if_base = ['interfaces', type, interface]
+                fixup_cli(config, if_base, interface, host)
+
+                if config.exists(if_base + ['vif']):
+                    for vif in config.list_nodes(if_base + ['vif']):
+                        vif_base = ['interfaces', type, interface, 'vif', vif]
+                        fixup_cli(config, vif_base, f'{interface}.{vif}', host)
+
+                if config.exists(if_base + ['vif-s']):
+                    for vif_s in config.list_nodes(if_base + ['vif-s']):
+                        vif_s_base = ['interfaces', type, interface, 'vif-s', vif_s]
+                        fixup_cli(config, vif_s_base, f'{interface}.{vif_s}', host)
+
+                        if config.exists(if_base + ['vif-s', vif_s, 'vif-c']):
+                            for vif_c in config.list_nodes(if_base + ['vif-s', vif_s, 'vif-c']):
+                                vif_c_base = ['interfaces', type, interface, 'vif-s', vif_s, 'vif-c', vif_c]
+                                fixup_cli(config, vif_c_base, f'{interface}.{vif_s}.{vif_c}', host)
+
+    config.delete(tmp_base)