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system-options.py
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system-options.py
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#!/usr/bin/env python3
#
# Copyright (C) 2019 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/>.
import os
from sys import exit
from copy import deepcopy
from vyos.config import Config
from vyos import ConfigError
systemd_ctrl_alt_del = '/lib/systemd/system/ctrl-alt-del.target'
default_config_data = {
'beep_if_fully_booted': False,
'ctrl_alt_del': 'ignore',
'reboot_on_panic': True
}
def get_config():
opt = deepcopy(default_config_data)
conf = Config()
conf.set_level('system options')
if conf.exists(''):
if conf.exists('ctrl-alt-del-action'):
opt['ctrl_alt_del'] = conf.return_value('ctrl-alt-del-action')
opt['beep_if_fully_booted'] = conf.exists('beep-if-fully-booted')
opt['reboot_on_panic'] = conf.exists('reboot-on-panic')
return opt
def verify(opt):
pass
def generate(opt):
pass
def apply(opt):
# Beep action
if opt['beep_if_fully_booted']:
os.system('systemctl enable vyos-beep.service >/dev/null 2>&1')
else:
os.system('systemctl disable vyos-beep.service >/dev/null 2>&1')
# Ctrl-Alt-Delete action
if opt['ctrl_alt_del'] == 'ignore':
if os.path.exists(systemd_ctrl_alt_del):
os.unlink('/lib/systemd/system/ctrl-alt-del.target')
elif opt['ctrl_alt_del'] == 'reboot':
if os.path.exists(systemd_ctrl_alt_del):
os.unlink(systemd_ctrl_alt_del)
os.symlink('/lib/systemd/system/reboot.target', systemd_ctrl_alt_del)
elif opt['ctrl_alt_del'] == 'poweroff':
if os.path.exists(systemd_ctrl_alt_del):
os.unlink(systemd_ctrl_alt_del)
os.symlink('/lib/systemd/system/poweroff.target', systemd_ctrl_alt_del)
# Reboot system on kernel panic
with open('/proc/sys/kernel/panic', 'w') as f:
if opt['reboot_on_panic']:
f.write('60')
else:
f.write('0')
if __name__ == '__main__':
try:
c = get_config()
verify(c)
generate(c)
apply(c)
except ConfigError as e:
print(e)
exit(1)

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