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-rw-r--r--[-rwxr-xr-x]src/migration-scripts/nat/6-to-795
1 files changed, 38 insertions, 57 deletions
diff --git a/src/migration-scripts/nat/6-to-7 b/src/migration-scripts/nat/6-to-7
index 25640dec2..e9b90fc98 100755..100644
--- a/src/migration-scripts/nat/6-to-7
+++ b/src/migration-scripts/nat/6-to-7
@@ -1,18 +1,17 @@
-#!/usr/bin/env python3
+# Copyright 2023-2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
-# Copyright (C) 2023 VyOS maintainers and contributors
+# This library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
#
-# 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,
+# This library 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.
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser 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/>.
+# You should have received a copy of the GNU Lesser General Public License
+# along with this library. If not, see <http://www.gnu.org/licenses/>.
# T5681: Firewall re-writing. Simplify cli when mathcing interface
# From
@@ -23,51 +22,33 @@
# 'set nat [source|destination] rule X [inbound-interface|outbound interface] group <iface_group>'
# Also remove command if interface == any
-from sys import argv,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()
-
-config = ConfigTree(config_file)
-
-if not config.exists(['nat']):
- # Nothing to do
- exit(0)
-
-for direction in ['source', 'destination']:
- # If a node doesn't exist, we obviously have nothing to do.
- if not config.exists(['nat', direction]):
- continue
-
- # However, we also need to handle the case when a 'source' or 'destination' sub-node does exist,
- # but there are no rules under it.
- if not config.list_nodes(['nat', direction]):
- continue
-
- for rule in config.list_nodes(['nat', direction, 'rule']):
- base = ['nat', direction, 'rule', rule]
- for iface in ['inbound-interface','outbound-interface']:
- if config.exists(base + [iface]):
- if config.exists(base + [iface, 'interface-name']):
- tmp = config.return_value(base + [iface, 'interface-name'])
- if tmp != 'any':
- config.delete(base + [iface, 'interface-name'])
- if '+' in tmp:
- tmp = tmp.replace('+', '*')
- config.set(base + [iface, 'name'], value=tmp)
- else:
- config.delete(base + [iface])
-
-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)
+def migrate(config: ConfigTree) -> None:
+ if not config.exists(['nat']):
+ # Nothing to do
+ return
+
+ for direction in ['source', 'destination']:
+ # If a node doesn't exist, we obviously have nothing to do.
+ if not config.exists(['nat', direction]):
+ continue
+
+ # However, we also need to handle the case when a 'source' or 'destination' sub-node does exist,
+ # but there are no rules under it.
+ if not config.list_nodes(['nat', direction]):
+ continue
+
+ for rule in config.list_nodes(['nat', direction, 'rule']):
+ base = ['nat', direction, 'rule', rule]
+ for iface in ['inbound-interface','outbound-interface']:
+ if config.exists(base + [iface]):
+ if config.exists(base + [iface, 'interface-name']):
+ tmp = config.return_value(base + [iface, 'interface-name'])
+ if tmp != 'any':
+ config.delete(base + [iface, 'interface-name'])
+ if '+' in tmp:
+ tmp = tmp.replace('+', '*')
+ config.set(base + [iface, 'name'], value=tmp)
+ else:
+ config.delete(base + [iface])