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# Copyright 2023-2024 VyOS maintainers and contributors <maintainers@vyos.io>
#
# 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 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
# Lesser General Public License for more details.
#
# 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/>.
# T5729: Switch to valueless whenever is possible.
# From
# set firewall ... rule <rule> log enable
# set firewall ... rule <rule> state <state> enable
# set firewall ... rule <rule> log disable
# set firewall ... rule <rule> state <state> disable
# To
# set firewall ... rule <rule> log
# set firewall ... rule <rule> state <state>
# Remove command if log=disable or <state>=disable
from vyos.configtree import ConfigTree
base = ['firewall']
def migrate(config: ConfigTree) -> None:
if not config.exists(base):
# Nothing to do
return
# State Policy logs:
if config.exists(base + ['global-options', 'state-policy']):
for state in config.list_nodes(base + ['global-options', 'state-policy']):
if config.exists(base + ['global-options', 'state-policy', state, 'log']):
log_value = config.return_value(base + ['global-options', 'state-policy', state, 'log'])
config.delete(base + ['global-options', 'state-policy', state, 'log'])
if log_value == 'enable':
config.set(base + ['global-options', 'state-policy', state, 'log'])
for family in ['ipv4', 'ipv6', 'bridge']:
if config.exists(base + [family]):
for hook in ['forward', 'input', 'output', 'name']:
if config.exists(base + [family, hook]):
for priority in config.list_nodes(base + [family, hook]):
if config.exists(base + [family, hook, priority, 'rule']):
for rule in config.list_nodes(base + [family, hook, priority, 'rule']):
# Log
if config.exists(base + [family, hook, priority, 'rule', rule, 'log']):
log_value = config.return_value(base + [family, hook, priority, 'rule', rule, 'log'])
config.delete(base + [family, hook, priority, 'rule', rule, 'log'])
if log_value == 'enable':
config.set(base + [family, hook, priority, 'rule', rule, 'log'])
# State
if config.exists(base + [family, hook, priority, 'rule', rule, 'state']):
flag_enable = 'False'
for state in ['established', 'invalid', 'new', 'related']:
if config.exists(base + [family, hook, priority, 'rule', rule, 'state', state]):
state_value = config.return_value(base + [family, hook, priority, 'rule', rule, 'state', state])
config.delete(base + [family, hook, priority, 'rule', rule, 'state', state])
if state_value == 'enable':
config.set(base + [family, hook, priority, 'rule', rule, 'state'], value=state, replace=False)
flag_enable = 'True'
if flag_enable == 'False':
config.delete(base + [family, hook, priority, 'rule', rule, 'state'])
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