pppoe: T3112: drop "ipv6 enable" option

IPv6 enable can be considered once the ipv6 node is present!

1 files changed, 50 insertions, 0 deletions

diff --git a/src/migration-scripts/interfaces/15-to-16 b/src/migration-scripts/interfaces/15-to-16
new file mode 100755
index 000000000..126911ccd
--- /dev/null
+++ b/src/migration-scripts/interfaces/15-to-16
@@ -0,0 +1,50 @@
+#!/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/>.
+
+# remove pppoe "ipv6 enable" option
+
+import os
+
+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)
+    base = ['interfaces', 'pppoe']
+
+    if not config.exists(base):
+        # Nothing to do
+        exit(0)
+
+    for interface in config.list_nodes(base):
+        ipv6_enable = base + [interface, 'ipv6', 'enable']
+        if config.exists(ipv6_enable):
+            config.delete(ipv6_enable)
+
+    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)