IPv6: T3976: add prefix-list and access-list option from ipv6 route-map

1 files changed, 59 insertions, 0 deletions

diff --git a/src/migration-scripts/policy/2-to-3 b/src/migration-scripts/policy/2-to-3
new file mode 100755
index 000000000..5caec2dd2
--- /dev/null
+++ b/src/migration-scripts/policy/2-to-3
@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2022 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/>.
+​
+# T3976: change cli
+#     from: set policy route-map FOO rule 10 match ipv6 nexthop 'h:h:h:h:h:h:h:h'
+#       to: set policy route-map FOO rule 10 match ipv6 nexthop address 'h:h:h:h:h:h:h:h'
+​
+from sys import argv
+from sys import exit
+​
+from vyos.configtree import ConfigTree
+​
+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()
+​
+base = ['policy', 'route-map']
+config = ConfigTree(config_file)
+​
+if not config.exists(base):
+    # Nothing to do
+    exit(0)
+​
+​
+for route_map in config.list_nodes(base):
+    if not config.exists(base + [route_map, 'rule']):
+        continue
+    for rule in config.list_nodes(base + [route_map, 'rule']):
+        base_rule = base + [route_map, 'rule', rule]
+​
+        if config.exists(base_rule + ['match', 'ipv6', 'nexthop']):
+            tmp = config.return_value(base_rule + ['match', 'ipv6', 'nexthop'])
+            config.delete(base_rule + ['match', 'ipv6', 'nexthop'])
+            config.set(base_rule + ['match', 'ipv6', 'nexthop', 'address'], value=tmp)
+​
+try:
+    with open(file_name, 'w') as f:
+        f.write(config.to_string())
+except OSError as e:
+    print(f'Failed to save the modified config: {e}')
+    exit(1)
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