conntrack: T4309: T4903: Refactor `system conntrack ignore` rule generation, add IPv6 support and firewall groups

1 files changed, 50 insertions, 0 deletions

diff --git a/src/migration-scripts/conntrack/3-to-4 b/src/migration-scripts/conntrack/3-to-4
new file mode 100755
index 000000000..e90c383af
--- /dev/null
+++ b/src/migration-scripts/conntrack/3-to-4
@@ -0,0 +1,50 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 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/>.
+
+# Add support for IPv6 conntrack ignore, move existing nodes to `system conntrack ignore ipv4`
+
+from sys import argv
+from sys import exit
+
+from vyos.configtree import ConfigTree
+
+if len(argv) < 2:
+    print("Must specify file name!")
+    exit(1)
+
+file_name = argv[1]
+
+with open(file_name, 'r') as f:
+    config_file = f.read()
+
+base = ['system', 'conntrack']
+config = ConfigTree(config_file)
+
+if not config.exists(base):
+    # Nothing to do
+    exit(0)
+
+if config.exists(base + ['ignore', 'rule']):
+    config.set(base + ['ignore', 'ipv4'])
+    config.copy(base + ['ignore', 'rule'], base + ['ignore', 'ipv4', 'rule'])
+    config.delete(base + ['ignore', 'rule'])
+
+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)