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# Copyright 2020-2024 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/>.
# remove "system console netconsole"
# remove "system console device <device> modem"
import os
from vyos.configtree import ConfigTree
base = ['system', 'console']
def migrate(config: ConfigTree) -> None:
if not config.exists(base):
# Nothing to do
return
# remove "system console netconsole" (T2561)
if config.exists(base + ['netconsole']):
config.delete(base + ['netconsole'])
if config.exists(base + ['device']):
for device in config.list_nodes(base + ['device']):
dev_path = base + ['device', device]
# remove "system console device <device> modem" (T2570)
if config.exists(dev_path + ['modem']):
config.delete(dev_path + ['modem'])
# Only continue on USB based serial consoles
if not 'ttyUSB' in device:
continue
# A serial console has been configured but it does no longer
# exist on the system - cleanup
if not os.path.exists(f'/dev/{device}'):
config.delete(dev_path)
continue
# migrate from ttyUSB device to new device in /dev/serial/by-bus
for root, dirs, files in os.walk('/dev/serial/by-bus'):
for usb_device in files:
device_file = os.path.realpath(os.path.join(root, usb_device))
# migrate to new USB device names (T2529)
if os.path.basename(device_file) == device:
config.copy(dev_path, base + ['device', usb_device])
# Delete old USB node from config
config.delete(dev_path)
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