dhcpv6-pd: pppoe: T2506: restructure CLI

Rename the CLI nodes for prefix delegation from "dhcpv6-options delegate
<interface>" to "dhcpv6-options prefix-delegation interface <interface>".

The change is required to add the possibility to request for specific prefix
sized via the CLI. That option was not possible with the old configuration
tree.

1 files changed, 65 insertions, 0 deletions

diff --git a/src/migration-scripts/interfaces/9-to-10 b/src/migration-scripts/interfaces/9-to-10
new file mode 100755
index 000000000..ce28627b8
--- /dev/null
+++ b/src/migration-scripts/interfaces/9-to-10
@@ -0,0 +1,65 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2020 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/>.
+
+# - rename CLI node 'dhcpv6-options delgate' to 'dhcpv6-options prefix-delegation
+#   interface'
+# - rename CLI node 'interface-id' for prefix-delegation to 'address' as it
+#   represents the local interface IPv6 address assigned by DHCPv6-PD
+
+from sys import exit, argv
+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)
+
+    for intf_type in config.list_nodes(['interfaces']):
+        for intf in config.list_nodes(['interfaces', intf_type]):
+            # cache current config tree
+            base_path = ['interfaces', intf_type, intf, 'dhcpv6-options',
+                          'delegate']
+
+            if config.exists(base_path):
+                # cache new config tree
+                new_path = ['interfaces', intf_type, intf, 'dhcpv6-options',
+                             'prefix-delegation']
+                if not config.exists(new_path):
+                    config.set(new_path)
+
+                # copy to new node
+                config.copy(base_path, new_path + ['interface'])
+                print(new_path + ['interface'])
+
+                # rename interface-id to address
+                for interface in config.list_nodes(new_path + ['interface']):
+                    config.rename(new_path + ['interface', interface, 'interface-id'], 'address')
+
+                # delete old noe
+                config.delete(base_path)
+
+    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)