1 files changed, 61 insertions, 0 deletions
diff --git a/src/migration-scripts/interfaces/19-to-20 b/src/migration-scripts/interfaces/19-to-20
new file mode 100755
index 000000000..ed2780b92
--- /dev/null
+++ b/src/migration-scripts/interfaces/19-to-20
@@ -0,0 +1,61 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2021 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program 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 General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+from sys import argv
+from sys import exit
+from vyos.configtree import ConfigTree
+
+if __name__ == '__main__':
+    if (len(argv) < 1):
+        print("Must specify file name!")
+        exit(1)
+
+    file_name = argv[1]
+    with open(file_name, 'r') as f:
+        config_file = f.read()
+
+    config = ConfigTree(config_file)
+    base = ['interfaces', 'tunnel']
+
+    if not config.exists(base):
+        # Nothing to do
+        exit(0)
+
+    #
+    # Migrate "interface tunnel <tunX> encapsulation gre-bridge" to gretap
+    # Migrate "interface tunnel <tunX> local-ip" to source-address
+    # Migrate "interface tunnel <tunX> remote-ip" to remote
+    for interface in config.list_nodes(base):
+        encap_path = base + [interface, 'encapsulation']
+        if config.exists(encap_path):
+            tmp = config.return_value(encap_path)
+            if tmp == 'gre-bridge':
+                config.set(encap_path, value='gretap')
+
+        local_ip_path = base + [interface, 'local-ip']
+        if config.exists(local_ip_path):
+            config.rename(local_ip_path, 'source-address')
+
+        remote_ip_path = base + [interface, 'remote-ip']
+        if config.exists(remote_ip_path):
+            config.rename(remote_ip_path, 'remote')
+
+    try:
+        with open(file_name, 'w') as f:
+            f.write(config.to_string())
+    except OSError as e:
+        print("Failed to save the modified config: {}".format(e))
+        exit(1)