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#!/usr/bin/env python3
#
# Copyright (C) VyOS Inc.
#
# 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 unittest
from base_vyostest_shim import VyOSUnitTestSHIM
from vyos.configsession import ConfigSessionError
from vyos.system import disk
from vyos.system.grub import CFG_VYOS_VARS
from vyos.system.grub import vars_read
from vyos.utils.cpu import get_cpu_arch
from vyos.xml_ref import default_value
base_path = ['system', 'console']
# The serial console device is platform dependent. On amd64 this is the 8250
# UART at ttyS0, while arm64 systems use the PL011 UART exposed as ttyAMA0.
# A device that does not exist is not a TTY and thus never becomes the Kernel
# boot console - so we must test with the device of the running platform.
serial_console = 'ttyAMA0' if get_cpu_arch() == 'arm64' else 'ttyS0'
console_type = serial_console[:-1]
default_speed = default_value(base_path + ['device', serial_console, 'speed'])
def get_grub_vars() -> dict:
root_dir = disk.find_persistence()
vars_file: str = f'{root_dir}/{CFG_VYOS_VARS}'
vars_current: dict[str, str] = vars_read(vars_file)
return vars_current
class TestSystemConsole(VyOSUnitTestSHIM.TestCase):
@classmethod
def setUpClass(cls):
super(TestSystemConsole, cls).setUpClass()
# ensure we can also run this test on a live system - so lets clean
# out the current configuration :)
cls.cli_delete(cls, base_path)
cls.cli_commit(cls)
def tearDown(self):
self.cli_delete(base_path)
self.cli_commit()
# always forward to base class
super().tearDown()
def test_multiple_kernel_consoles(self):
self.cli_set(base_path + ['device', f'{console_type}1', 'kernel'])
self.cli_set(base_path + ['device', f'{console_type}2', 'kernel'])
# Only one console can have 'kernel'
with self.assertRaises(ConfigSessionError):
self.cli_commit()
def test_fbcon_and_serial_con_switch(self):
if not self.running_in_smoketest_harness():
self.skipTest('Not running under VyOS CI/CD QEMU environment!')
grub_vars = get_grub_vars()
# we have deleted the CLI config in tearDown() so the default is now
# the framebuffer console at tty0
self.assertEqual(grub_vars['console_type'], 'tty')
self.cli_set(base_path + ['device', serial_console, 'kernel'])
self.cli_commit()
grub_vars = get_grub_vars()
# We moved the Kernel boot console to the platform serial device
self.assertEqual(grub_vars['console_type'], console_type)
self.assertEqual(grub_vars['console_num'], serial_console[-1])
self.assertEqual(grub_vars['console_speed'], default_speed)
self.cli_delete(base_path)
self.cli_commit()
# We moved back to tty as Kernel boot console
grub_vars = get_grub_vars()
self.assertEqual(grub_vars['console_type'], 'tty')
if __name__ == '__main__':
unittest.main(verbosity=2, failfast=VyOSUnitTestSHIM.TestCase.debug_on())
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