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#!/usr/bin/env python3
#
# Copyright (C) 2024 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 csv
import sys
from itertools import chain
import vyos.opmode
from vyos.configquery import ConfigTreeQuery
from vyos.utils.process import cmd
def _get_raw_data(command: str) -> dict:
# Returns returns chronyc output as a dictionary
# Initialize dictionary keys to align with output of
# chrony -c. From some commands, its -c switch outputs
# more parameters, make sure to include them all below.
# See to chronyc(1) for definition of key variables
match command:
case "chronyc -c activity":
keys: list = [
'sources_online',
'sources_offline',
'sources_doing_burst_return_online',
'sources_doing_burst_return_offline',
'sources_with_unknown_address'
]
case "chronyc -c sources":
keys: list = [
'm',
's',
'name_ip_address',
'stratum',
'poll',
'reach',
'last_rx',
'last_sample_adj_offset',
'last_sample_mes_offset',
'last_sample_est_error'
]
case "chronyc -c sourcestats":
keys: list = [
'name_ip_address',
'np',
'nr',
'span',
'frequency',
'freq_skew',
'offset',
'std_dev'
]
case "chronyc -c tracking":
keys: list = [
'ref_id',
'ref_id_name',
'stratum',
'ref_time',
'system_time',
'last_offset',
'rms_offset',
'frequency',
'residual_freq',
'skew',
'root_delay',
'root_dispersion',
'update_interval',
'leap_status'
]
case _:
raise ValueError(f"Raw mode: of {command} is not implemented")
# Get -c option command line output, splitlines,
# and save comma-separated values as a flat list
output = cmd(command).splitlines()
values = csv.reader(output)
values = list(chain.from_iterable(values))
# Divide values into chunks of size keys and transpose
if len(values) > len(keys):
values = _chunk_list(values,keys)
values = zip(*values)
return dict(zip(keys, values))
def _chunk_list(in_list, n):
# Yields successive n-sized chunks from in_list
for i in range(0, len(in_list), len(n)):
yield in_list[i:i + len(n)]
def _is_configured():
# Check if ntp is configured
config = ConfigTreeQuery()
if not config.exists("service ntp"):
raise vyos.opmode.UnconfiguredSubsystem("NTP service is not enabled.")
def show_activity(raw: bool):
_is_configured()
command = f'chronyc'
if raw:
command += f" -c activity"
return _get_raw_data(command)
else:
command += f" activity"
return cmd(command)
def show_sources(raw: bool):
_is_configured()
command = f'chronyc'
if raw:
command += f" -c sources"
return _get_raw_data(command)
else:
command += f" sources -v"
return cmd(command)
def show_tracking(raw: bool):
_is_configured()
command = f'chronyc'
if raw:
command += f" -c tracking"
return _get_raw_data(command)
else:
command += f" tracking"
return cmd(command)
def show_sourcestats(raw: bool):
_is_configured()
command = f'chronyc'
if raw:
command += f" -c sourcestats"
return _get_raw_data(command)
else:
command += f" sourcestats -v"
return cmd(command)
if __name__ == '__main__':
try:
res = vyos.opmode.run(sys.modules[__name__])
if res:
print(res)
except (ValueError, vyos.opmode.Error) as e:
print(e)
sys.exit(1)
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