wlb: T7196: Migrate interface wildcards to nftables format

* wlb: T7196: Migrate interface wildcards to nftables format

* wlb: T7196: Fix exclude/interface verify check

* wlb: T7196: Extra sanity check on ipv4 address function

1 files changed, 33 insertions, 0 deletions

diff --git a/src/migration-scripts/wanloadbalance/3-to-4 b/src/migration-scripts/wanloadbalance/3-to-4
new file mode 100644
index 000000000..e49f46a5b
--- /dev/null
+++ b/src/migration-scripts/wanloadbalance/3-to-4
@@ -0,0 +1,33 @@
+# Copyright 2025 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 vyos.configtree import ConfigTree
+
+base = ['load-balancing', 'wan']
+
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        # Nothing to do
+        return
+
+    if config.exists(base + ['rule']):
+        for rule in config.list_nodes(base + ['rule']):
+            rule_base = base + ['rule', rule]
+
+            if config.exists(rule_base + ['inbound-interface']):
+                ifname = config.return_value(rule_base + ['inbound-interface'])
+
+                if ifname.endswith('+'):
+                    config.set(rule_base + ['inbound-interface'], value=ifname.replace('+', '*'))