1 files changed, 38 insertions, 0 deletions
diff --git a/src/migration-scripts/interfaces/10-to-11 b/src/migration-scripts/interfaces/10-to-11
new file mode 100644
index 0000000..8a562f2
--- /dev/null
+++ b/src/migration-scripts/interfaces/10-to-11
@@ -0,0 +1,38 @@
+# Copyright 2020-2024 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/>.
+
+# rename WWAN (wirelessmodem) serial interface from non persistent ttyUSB2 to
+# a bus like name, e.g. "usb0b1.3p1.3"
+
+import os
+
+from vyos.configtree import ConfigTree
+
+base = ['interfaces', 'wirelessmodem']
+
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(base):
+        # Nothing to do
+        return
+
+    for wwan in config.list_nodes(base):
+        if config.exists(base + [wwan, 'device']):
+            device = config.return_value(base + [wwan, 'device'])
+
+            for root, dirs, files in os.walk('/dev/serial/by-bus'):
+                for file in files:
+                    device_file = os.path.realpath(os.path.join(root, file))
+                    if os.path.basename(device_file) == device:
+                        config.set(base + [wwan, 'device'], value=file, replace=True)