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-rw-r--r--collectors/python.d.plugin/ntpd/ntpd.chart.py386
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diff --git a/collectors/python.d.plugin/ntpd/ntpd.chart.py b/collectors/python.d.plugin/ntpd/ntpd.chart.py
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+++ b/collectors/python.d.plugin/ntpd/ntpd.chart.py
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+# -*- coding: utf-8 -*-
+# Description: ntpd netdata python.d module
+# Author: Sven Mäder (rda0)
+# Author: Ilya Mashchenko (l2isbad)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
+import struct
+import re
+
+from bases.FrameworkServices.SocketService import SocketService
+
+
+# NTP Control Message Protocol constants
+MODE = 6
+HEADER_FORMAT = '!BBHHHHH'
+HEADER_LEN = 12
+OPCODES = {
+ 'readstat': 1,
+ 'readvar': 2
+}
+
+# Maximal dimension precision
+PRECISION = 1000000
+
+# Static charts
+ORDER = [
+ 'sys_offset',
+ 'sys_jitter',
+ 'sys_frequency',
+ 'sys_wander',
+ 'sys_rootdelay',
+ 'sys_rootdisp',
+ 'sys_stratum',
+ 'sys_tc',
+ 'sys_precision',
+ 'peer_offset',
+ 'peer_delay',
+ 'peer_dispersion',
+ 'peer_jitter',
+ 'peer_xleave',
+ 'peer_rootdelay',
+ 'peer_rootdisp',
+ 'peer_stratum',
+ 'peer_hmode',
+ 'peer_pmode',
+ 'peer_hpoll',
+ 'peer_ppoll',
+ 'peer_precision'
+]
+
+CHARTS = {
+ 'sys_offset': {
+ 'options': [None, 'Combined offset of server relative to this host', 'milliseconds',
+ 'system', 'ntpd.sys_offset', 'area'],
+ 'lines': [
+ ['offset', 'offset', 'absolute', 1, PRECISION]
+ ]
+ },
+ 'sys_jitter': {
+ 'options': [None, 'Combined system jitter and clock jitter', 'milliseconds',
+ 'system', 'ntpd.sys_jitter', 'line'],
+ 'lines': [
+ ['sys_jitter', 'system', 'absolute', 1, PRECISION],
+ ['clk_jitter', 'clock', 'absolute', 1, PRECISION]
+ ]
+ },
+ 'sys_frequency': {
+ 'options': [None, 'Frequency offset relative to hardware clock', 'ppm', 'system', 'ntpd.sys_frequency', 'area'],
+ 'lines': [
+ ['frequency', 'frequency', 'absolute', 1, PRECISION]
+ ]
+ },
+ 'sys_wander': {
+ 'options': [None, 'Clock frequency wander', 'ppm', 'system', 'ntpd.sys_wander', 'area'],
+ 'lines': [
+ ['clk_wander', 'clock', 'absolute', 1, PRECISION]
+ ]
+ },
+ 'sys_rootdelay': {
+ 'options': [None, 'Total roundtrip delay to the primary reference clock', 'milliseconds', 'system',
+ 'ntpd.sys_rootdelay', 'area'],
+ 'lines': [
+ ['rootdelay', 'delay', 'absolute', 1, PRECISION]
+ ]
+ },
+ 'sys_rootdisp': {
+ 'options': [None, 'Total root dispersion to the primary reference clock', 'milliseconds', 'system',
+ 'ntpd.sys_rootdisp', 'area'],
+ 'lines': [
+ ['rootdisp', 'dispersion', 'absolute', 1, PRECISION]
+ ]
+ },
+ 'sys_stratum': {
+ 'options': [None, 'Stratum (1-15)', 'stratum', 'system', 'ntpd.sys_stratum', 'line'],
+ 'lines': [
+ ['stratum', 'stratum', 'absolute', 1, PRECISION]
+ ]
+ },
+ 'sys_tc': {
+ 'options': [None, 'Time constant and poll exponent (3-17)', 'log2 s', 'system', 'ntpd.sys_tc', 'line'],
+ 'lines': [
+ ['tc', 'current', 'absolute', 1, PRECISION],
+ ['mintc', 'minimum', 'absolute', 1, PRECISION]
+ ]
+ },
+ 'sys_precision': {
+ 'options': [None, 'Precision', 'log2 s', 'system', 'ntpd.sys_precision', 'line'],
+ 'lines': [
+ ['precision', 'precision', 'absolute', 1, PRECISION]
+ ]
+ }
+}
+
+PEER_CHARTS = {
+ 'peer_offset': {
+ 'options': [None, 'Filter offset', 'milliseconds', 'peers', 'ntpd.peer_offset', 'line'],
+ 'lines': []
+ },
+ 'peer_delay': {
+ 'options': [None, 'Filter delay', 'milliseconds', 'peers', 'ntpd.peer_delay', 'line'],
+ 'lines': []
+ },
+ 'peer_dispersion': {
+ 'options': [None, 'Filter dispersion', 'milliseconds', 'peers', 'ntpd.peer_dispersion', 'line'],
+ 'lines': []
+ },
+ 'peer_jitter': {
+ 'options': [None, 'Filter jitter', 'milliseconds', 'peers', 'ntpd.peer_jitter', 'line'],
+ 'lines': []
+ },
+ 'peer_xleave': {
+ 'options': [None, 'Interleave delay', 'milliseconds', 'peers', 'ntpd.peer_xleave', 'line'],
+ 'lines': []
+ },
+ 'peer_rootdelay': {
+ 'options': [None, 'Total roundtrip delay to the primary reference clock', 'milliseconds', 'peers',
+ 'ntpd.peer_rootdelay', 'line'],
+ 'lines': []
+ },
+ 'peer_rootdisp': {
+ 'options': [None, 'Total root dispersion to the primary reference clock', 'ms', 'peers',
+ 'ntpd.peer_rootdisp', 'line'],
+ 'lines': []
+ },
+ 'peer_stratum': {
+ 'options': [None, 'Stratum (1-15)', 'stratum', 'peers', 'ntpd.peer_stratum', 'line'],
+ 'lines': []
+ },
+ 'peer_hmode': {
+ 'options': [None, 'Host mode (1-6)', 'hmode', 'peers', 'ntpd.peer_hmode', 'line'],
+ 'lines': []
+ },
+ 'peer_pmode': {
+ 'options': [None, 'Peer mode (1-5)', 'pmode', 'peers', 'ntpd.peer_pmode', 'line'],
+ 'lines': []
+ },
+ 'peer_hpoll': {
+ 'options': [None, 'Host poll exponent', 'log2 s', 'peers', 'ntpd.peer_hpoll', 'line'],
+ 'lines': []
+ },
+ 'peer_ppoll': {
+ 'options': [None, 'Peer poll exponent', 'log2 s', 'peers', 'ntpd.peer_ppoll', 'line'],
+ 'lines': []
+ },
+ 'peer_precision': {
+ 'options': [None, 'Precision', 'log2 s', 'peers', 'ntpd.peer_precision', 'line'],
+ 'lines': []
+ }
+}
+
+
+class Base:
+ regex = re.compile(r'([a-z_]+)=((?:-)?[0-9]+(?:\.[0-9]+)?)')
+
+ @staticmethod
+ def get_header(associd=0, operation='readvar'):
+ """
+ Constructs the NTP Control Message header:
+ 0 1 2 3
+ 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ |LI | VN |Mode |R|E|M| OpCode | Sequence Number |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Status | Association ID |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ | Offset | Count |
+ +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
+ """
+ version = 2
+ sequence = 1
+ status = 0
+ offset = 0
+ count = 0
+ header = struct.pack(HEADER_FORMAT, (version << 3 | MODE), OPCODES[operation],
+ sequence, status, associd, offset, count)
+ return header
+
+
+class System(Base):
+ def __init__(self):
+ self.request = self.get_header()
+
+ def get_data(self, raw):
+ """
+ Extracts key=value pairs with float/integer from ntp response packet data.
+ """
+ data = dict()
+ for key, value in self.regex.findall(raw):
+ data[key] = float(value) * PRECISION
+ return data
+
+
+class Peer(Base):
+ def __init__(self, idx, name):
+ self.id = idx
+ self.real_name = name
+ self.name = name.replace('.', '_')
+ self.request = self.get_header(self.id)
+
+ def get_data(self, raw):
+ """
+ Extracts key=value pairs with float/integer from ntp response packet data.
+ """
+ data = dict()
+ for key, value in self.regex.findall(raw):
+ dimension = '_'.join([self.name, key])
+ data[dimension] = float(value) * PRECISION
+ return data
+
+
+class Service(SocketService):
+ def __init__(self, configuration=None, name=None):
+ SocketService.__init__(self, configuration=configuration, name=name)
+ self.order = list(ORDER)
+ self.definitions = dict(CHARTS)
+ self.port = 'ntp'
+ self.dgram_socket = True
+ self.system = System()
+ self.peers = dict()
+ self.request = str()
+ self.retries = 0
+ self.show_peers = self.configuration.get('show_peers', False)
+ self.peer_rescan = self.configuration.get('peer_rescan', 60)
+ if self.show_peers:
+ self.definitions.update(PEER_CHARTS)
+
+ def check(self):
+ """
+ Checks if we can get valid systemvars.
+ If not, returns None to disable module.
+ """
+ self._parse_config()
+
+ peer_filter = self.configuration.get('peer_filter', r'127\..*')
+ try:
+ self.peer_filter = re.compile(r'^((0\.0\.0\.0)|({0}))$'.format(peer_filter))
+ except re.error as error:
+ self.error('Compile pattern error (peer_filter) : {0}'.format(error))
+ return None
+
+ self.request = self.system.request
+ raw_systemvars = self._get_raw_data()
+
+ if not self.system.get_data(raw_systemvars):
+ return None
+
+ return True
+
+ def get_data(self):
+ """
+ Gets systemvars data on each update.
+ Gets peervars data for all peers on each update.
+ """
+ data = dict()
+
+ self.request = self.system.request
+ raw = self._get_raw_data()
+ if not raw:
+ return None
+
+ data.update(self.system.get_data(raw))
+
+ if not self.show_peers:
+ return data
+
+ if not self.peers or self.runs_counter % self.peer_rescan == 0 or self.retries > 8:
+ self.find_new_peers()
+
+ for peer in self.peers.values():
+ self.request = peer.request
+ peer_data = peer.get_data(self._get_raw_data())
+ if peer_data:
+ data.update(peer_data)
+ else:
+ self.retries += 1
+
+ return data
+
+ def find_new_peers(self):
+ new_peers = dict((p.real_name, p) for p in self.get_peers())
+ if new_peers:
+
+ peers_to_remove = set(self.peers) - set(new_peers)
+ peers_to_add = set(new_peers) - set(self.peers)
+
+ for peer_name in peers_to_remove:
+ self.hide_old_peer_from_charts(self.peers[peer_name])
+ del self.peers[peer_name]
+
+ for peer_name in peers_to_add:
+ self.add_new_peer_to_charts(new_peers[peer_name])
+
+ self.peers.update(new_peers)
+ self.retries = 0
+
+ def add_new_peer_to_charts(self, peer):
+ for chart_id in set(self.charts.charts) & set(PEER_CHARTS):
+ dim_id = peer.name + chart_id[4:]
+ if dim_id not in self.charts[chart_id]:
+ self.charts[chart_id].add_dimension([dim_id, peer.real_name, 'absolute', 1, PRECISION])
+ else:
+ self.charts[chart_id].hide_dimension(dim_id, reverse=True)
+
+ def hide_old_peer_from_charts(self, peer):
+ for chart_id in set(self.charts.charts) & set(PEER_CHARTS):
+ dim_id = peer.name + chart_id[4:]
+ self.charts[chart_id].hide_dimension(dim_id)
+
+ def get_peers(self):
+ self.request = Base.get_header(operation='readstat')
+
+ raw_data = self._get_raw_data(raw=True)
+ if not raw_data:
+ return list()
+
+ peer_ids = self.get_peer_ids(raw_data)
+ if not peer_ids:
+ return list()
+
+ new_peers = list()
+ for peer_id in peer_ids:
+ self.request = Base.get_header(peer_id)
+ raw_peer_data = self._get_raw_data()
+ if not raw_peer_data:
+ continue
+ srcadr = re.search(r'(srcadr)=([^,]+)', raw_peer_data)
+ if not srcadr:
+ continue
+ srcadr = srcadr.group(2)
+ if self.peer_filter.search(srcadr):
+ continue
+ stratum = re.search(r'(stratum)=([^,]+)', raw_peer_data)
+ if not stratum:
+ continue
+ if int(stratum.group(2)) > 15:
+ continue
+
+ new_peer = Peer(idx=peer_id, name=srcadr)
+ new_peers.append(new_peer)
+ return new_peers
+
+ def get_peer_ids(self, res):
+ """
+ Unpack the NTP Control Message header
+ Get data length from header
+ Get list of association ids returned in the readstat response
+ """
+
+ try:
+ count = struct.unpack(HEADER_FORMAT, res[:HEADER_LEN])[6]
+ except struct.error as error:
+ self.error('error unpacking header: {0}'.format(error))
+ return None
+ if not count:
+ self.error('empty data field in NTP control packet')
+ return None
+
+ data_end = HEADER_LEN + count
+ data = res[HEADER_LEN:data_end]
+ data_format = ''.join(['!', 'H' * int(count / 2)])
+ try:
+ peer_ids = list(struct.unpack(data_format, data))[::2]
+ except struct.error as error:
+ self.error('error unpacking data: {0}'.format(error))
+ return None
+ return peer_ids