1 files changed, 67 insertions, 0 deletions
diff --git a/src/migration-scripts/system/13-to-14 b/src/migration-scripts/system/13-to-14
new file mode 100644
index 0000000..fbbecbc
--- /dev/null
+++ b/src/migration-scripts/system/13-to-14
@@ -0,0 +1,67 @@
+# Copyright 2019-2024 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/>.
+
+# Fixup non existent time-zones. Some systems have time-zone set to: Los*
+# (Los_Angeles), Den* (Denver), New* (New_York) ... but those are no real IANA
+# assigned time zones. In the past they have been silently remapped.
+#
+# Time to clean it up!
+#
+# Migrate all configured timezones to real IANA assigned timezones!
+
+import re
+
+from vyos.configtree import ConfigTree
+from vyos.utils.process import cmd
+
+
+tz_base = ['system', 'time-zone']
+
+def migrate(config: ConfigTree) -> None:
+    if not config.exists(tz_base):
+        # Nothing to do
+        return
+
+    tz = config.return_value(tz_base)
+
+    # retrieve all valid timezones
+    try:
+        tz_datas = cmd('timedatectl list-timezones')
+    except OSError:
+        tz_datas = ''
+    tz_data = tz_datas.split('\n')
+
+    if re.match(r'[Ll][Oo][Ss].+', tz):
+        tz = 'America/Los_Angeles'
+    elif re.match(r'[Dd][Ee][Nn].+', tz):
+        tz = 'America/Denver'
+    elif re.match(r'[Hh][Oo][Nn][Oo].+', tz):
+        tz = 'Pacific/Honolulu'
+    elif re.match(r'[Nn][Ee][Ww].+', tz):
+        tz = 'America/New_York'
+    elif re.match(r'[Cc][Hh][Ii][Cc]*.+', tz):
+        tz = 'America/Chicago'
+    elif re.match(r'[Aa][Nn][Cc].+', tz):
+        tz = 'America/Anchorage'
+    elif re.match(r'[Pp][Hh][Oo].+', tz):
+        tz = 'America/Phoenix'
+    elif re.match(r'GMT(.+)?', tz):
+        tz = 'Etc/' + tz
+    elif tz not in tz_data:
+        # assign default UTC timezone
+        tz = 'UTC'
+
+    # replace timezone data is required
+    config.set(tz_base, value=tz)