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#!/usr/bin/env python3
#
# Copyright (C) 2024-2025 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
import unittest
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.configsession import ConfigSessionError
from vyos.utils.cpu import get_cpus
from vyos.utils.file import read_file
from vyos.utils.process import is_systemd_service_active
from vyos.utils.system import sysctl_read
from vyos.system import image
base_path = ['system', 'option']
class TestSystemOption(VyOSUnitTestSHIM.TestCase):
def tearDown(self):
self.cli_delete(base_path)
self.cli_commit()
def test_ctrl_alt_delete(self):
self.cli_set(base_path + ['ctrl-alt-delete', 'reboot'])
self.cli_commit()
tmp = os.readlink('/lib/systemd/system/ctrl-alt-del.target')
self.assertEqual(tmp, '/lib/systemd/system/reboot.target')
self.cli_set(base_path + ['ctrl-alt-delete', 'poweroff'])
self.cli_commit()
tmp = os.readlink('/lib/systemd/system/ctrl-alt-del.target')
self.assertEqual(tmp, '/lib/systemd/system/poweroff.target')
self.cli_delete(base_path + ['ctrl-alt-delete', 'poweroff'])
self.cli_commit()
self.assertFalse(os.path.exists('/lib/systemd/system/ctrl-alt-del.target'))
def test_reboot_on_panic(self):
panic_file = '/proc/sys/kernel/panic'
tmp = read_file(panic_file)
self.assertEqual(tmp, '0')
self.cli_set(base_path + ['reboot-on-panic'])
self.cli_commit()
tmp = read_file(panic_file)
self.assertEqual(tmp, '60')
def test_performance(self):
tuned_service = 'tuned.service'
path = ['system', 'sysctl', 'parameter']
self.assertFalse(is_systemd_service_active(tuned_service))
# T3204 sysctl options must not be overwritten by tuned
gc_thresh1 = '131072'
gc_thresh2 = '262000'
gc_thresh3 = '524000'
self.cli_set(path + ['net.ipv4.neigh.default.gc_thresh1', 'value', gc_thresh1])
self.cli_set(path + ['net.ipv4.neigh.default.gc_thresh2', 'value', gc_thresh2])
self.cli_set(path + ['net.ipv4.neigh.default.gc_thresh3', 'value', gc_thresh3])
self.cli_set(base_path + ['performance', 'network-throughput'])
self.cli_commit()
self.assertTrue(is_systemd_service_active(tuned_service))
self.assertEqual(sysctl_read('net.ipv4.neigh.default.gc_thresh1'), gc_thresh1)
self.assertEqual(sysctl_read('net.ipv4.neigh.default.gc_thresh2'), gc_thresh2)
self.assertEqual(sysctl_read('net.ipv4.neigh.default.gc_thresh3'), gc_thresh3)
def test_ssh_client_options(self):
loopback = 'lo'
ssh_client_opt_file = '/etc/ssh/ssh_config.d/91-vyos-ssh-client-options.conf'
self.cli_set(['system', 'option', 'ssh-client', 'source-interface', loopback])
self.cli_commit()
tmp = read_file(ssh_client_opt_file)
self.assertEqual(tmp, f'BindInterface {loopback}')
self.cli_delete(['system', 'option'])
self.cli_commit()
self.assertFalse(os.path.exists(ssh_client_opt_file))
def test_kernel_options(self):
amd_pstate_mode = 'active'
isolate_cpus = '1,2,3'
nohz_full = '2'
rcu_no_cbs = '1,2,4-5'
default_hp_size = '2M'
hp_size_1g = '1G'
hp_size_2m = '2M'
hp_count_1g = '2'
hp_count_2m = '512'
self.cli_set(['system', 'option', 'kernel', 'cpu', 'disable-nmi-watchdog'])
self.cli_set(['system', 'option', 'kernel', 'cpu', 'isolate-cpus', isolate_cpus])
self.cli_set(['system', 'option', 'kernel', 'cpu', 'nohz-full', nohz_full])
self.cli_set(['system', 'option', 'kernel', 'cpu', 'rcu-no-cbs', rcu_no_cbs])
self.cli_set(['system', 'option', 'kernel', 'disable-hpet'])
self.cli_set(['system', 'option', 'kernel', 'disable-mce'])
self.cli_set(['system', 'option', 'kernel', 'disable-mitigations'])
self.cli_set(['system', 'option', 'kernel', 'disable-power-saving'])
self.cli_set(['system', 'option', 'kernel', 'disable-softlockup'])
self.cli_set(['system', 'option', 'kernel', 'memory', 'disable-numa-balancing'])
self.cli_set(['system', 'option', 'kernel', 'memory', 'default-hugepage-size', default_hp_size])
self.cli_set(['system', 'option', 'kernel', 'memory', 'hugepage-size', hp_size_1g, 'hugepage-count', hp_count_1g])
self.cli_set(['system', 'option', 'kernel', 'memory', 'hugepage-size', hp_size_2m, 'hugepage-count', hp_count_2m])
self.cli_set(['system', 'option', 'kernel', 'quiet'])
self.cli_set(['system', 'option', 'kernel', 'amd-pstate-driver', amd_pstate_mode])
cpu_vendor = get_cpus()[0]['vendor_id']
if cpu_vendor != 'AuthenticAMD':
with self.assertRaises(ConfigSessionError):
self.cli_commit()
self.cli_delete(['system', 'option', 'kernel', 'amd-pstate-driver'])
self.cli_commit()
# Read GRUB config file for current running image
tmp = read_file(f'{image.grub.GRUB_DIR_VYOS_VERS}/{image.get_running_image()}.cfg')
self.assertIn(' mitigations=off', tmp)
self.assertIn(' intel_idle.max_cstate=0 processor.max_cstate=1', tmp)
self.assertIn(' quiet', tmp)
self.assertIn(' nmi_watchdog=0', tmp)
self.assertIn(' hpet=disable', tmp)
self.assertIn(' mce=off', tmp)
self.assertIn(' nosoftlockup', tmp)
self.assertIn(f' isolcpus={isolate_cpus}', tmp)
self.assertIn(f' nohz_full={nohz_full}', tmp)
self.assertIn(f' rcu_nocbs={rcu_no_cbs}', tmp)
self.assertIn(f' default_hugepagesz={default_hp_size}', tmp)
self.assertIn(f' hugepagesz={hp_size_1g} hugepages={hp_count_1g}', tmp)
self.assertIn(f' hugepagesz={hp_size_2m} hugepages={hp_count_2m}', tmp)
self.assertIn(' numa_balancing=disable', tmp)
if cpu_vendor == 'AuthenticAMD':
self.assertIn(f' initcall_blacklist=acpi_cpufreq_init amd_pstate={amd_pstate_mode}', tmp)
if __name__ == '__main__':
unittest.main(verbosity=2)
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