mirror of
https://github.com/munin-monitoring/contrib.git
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267 lines
8 KiB
Python
Executable file
267 lines
8 KiB
Python
Executable file
#!/usr/bin/python
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# modem:
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#
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# * upstream and downstream power levels
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# * downstream signal to noise ratio
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# * downstream error counts
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#
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# The values are retrieved from the cable modem's status web pages at
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# 192.168.100.1. So, this plugin must be installed on a munin node
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# which can access those pages.
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#
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# To install, place this plugin in the node's plugins directory,
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# /etc/munin/plugins and restart munin-node.
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#
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# Developed and tested with:
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# firmware: D30CM-OSPREY-2.4.0.1-GA-02-NOSH
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# hardware version: 1
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#
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# Copyright 2020 Nathaniel Clark <nathaniel.clark@misrule.us>
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"""
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=head1 NAME
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arris-sb6183 - Health monitoring plugin for Arris SB6183 Cable Modem
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=head1 CONFIGURATION
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Make sure 192.168.100.1 is accessible through your firewall.
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To have this register with munin as it's own host set the "env.hostname" in config.
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Also ensure that the hostname set is listed in munin.conf.
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[arris*]
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env.hostname modem
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=head1 VERSION
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0.0.1
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=head1 AUTHOR
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Nathaniel Clark <nathaniel.clark@misrule.us>
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=head1 LICENSE
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GPLv2
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=head1 MAGIC MARKERS
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#%# family=contrib
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#%# capabilities=autoconf
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=cut
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"""
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import re
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import os
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import sys
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import requests
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from lxml import html
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URL = os.getenv("url", "http://192.168.100.1/RgConnect.asp")
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HOSTNAME = os.getenv("hostname", None)
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UPCOUNT = int(os.getenv("up", 4))
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DOWNCOUNT = int(os.getenv("down", 16))
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if len(sys.argv) == 2:
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if sys.argv[1] == "config":
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if HOSTNAME:
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print("host_name {0}\n".format(HOSTNAME))
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# POWER
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print("multigraph arris_power")
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print("graph_title Arris Power (dBmV)")
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print("graph_vlabel Power (dBmV)")
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print("graph_category network")
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for i in range(1, DOWNCOUNT + 1):
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print("down_{0}.label Down Ch {1}".format(i, i))
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print("down_{0}.type GAUGE".format(i))
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print("down_{0}.draw LINE1".format(i))
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for i in range(1, UPCOUNT + 1):
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print("up_{0}.label Up Ch {1}".format(i, i))
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print("up_{0}.type GAUGE".format(i))
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# print("up_{0}.draw LINE1".format(i))
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for i in range(1, DOWNCOUNT + 1):
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name = "down_{0}".format(i)
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print("\nmultigraph arris_power.{0}".format(name))
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print("graph_title Downstream Power for Channel {0} (dBmV)".format(i))
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print("graph_category network")
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print("power.label dBmV")
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print("power.type GAUGE")
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print("power.draw LINE1")
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for i in range(1, UPCOUNT + 1):
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name = "up_{0}".format(i)
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print("\nmultigraph arris_power.{0}".format(name))
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print("graph_title Upstream Power for Channel {0} (dBmV)".format(i))
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print("graph_category network")
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print("power.label dBmV")
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print("power.type GAUGE")
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print("power.draw LINE1")
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# SNR
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print("\nmultigraph arris_snr")
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print("graph_title Arris Signal-to-Noise Ratio (dB)")
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print("graph_vlabel SNR (dB)")
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print("graph_category network")
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for i in range(1, DOWNCOUNT + 1):
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print("down_{0}.label Ch {1}".format(i, i))
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print("down_{0}.type GAUGE".format(i))
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print("down_{0}.draw LINE1".format(i))
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for i in range(1, DOWNCOUNT + 1):
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name = "down_{0}".format(i)
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print("\nmultigraph arris_snr.{0}".format(name))
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print("graph_title SNR on Channel {0} (dB)".format(i))
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print("graph_vlabel SNR (dB)")
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print("graph_category network")
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print("snr.label dB")
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print("snr.type GAUGE")
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print("snr.draw LINE1")
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# ERRORS
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print("\nmultigraph arris_error")
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print("graph_title Arris Channel Errors")
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print("graph_category network")
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print("graph_args --base 1000")
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print("graph_vlabel errors/sec")
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print("graph_category network")
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print("corr.label Corrected")
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print("corr.type DERIVE")
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print("corr.min 0")
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print("uncr.label Uncorrectable")
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print("uncr.type DERIVE")
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print("uncr.min 0")
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print("uncr.warning 1")
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for i in range(1, DOWNCOUNT + 1):
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name = "down_{0}".format(i)
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print("\nmultigraph arris_error.{0}".format(name))
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print("graph_title Channel {0} Errors".format(i))
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print("graph_args --base 1000")
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print("graph_vlabel errors/sec")
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print("graph_category network")
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print("corr.label Correctable")
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print("corr.type DERIVE")
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print("corr.min 0")
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print("uncr.label Uncorrectable")
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print("uncr.type DERIVE")
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print("uncr.min 0")
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print("uncr.warning 1")
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sys.exit(0)
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if sys.argv[1] == "autoconfig":
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try:
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page = requests.get(URL)
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except:
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print("no (no router)")
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else:
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if page.status_code == 200:
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print("yes")
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else:
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print("no (Bad status code: %d)" % page.status_code)
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sys.exit(0)
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rxblank = re.compile(r"[\x00\n\r\t ]+", re.MULTILINE)
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rxcomment = re.compile(r"<!--.*?-->")
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rxscript = re.compile(r"<script.*?</script>", re.MULTILINE)
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page = requests.get(URL)
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data = rxscript.sub("", rxcomment.sub("", rxblank.sub(" ", page.text)))
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dom = html.fromstring(data)
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arr = dom.xpath('//table[contains(@class, "simpleTable")]')
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downstream = arr[1]
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upstream = arr[2]
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trs = downstream.findall("tr")
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# drop title
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trs.pop(0)
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headings = ["".join(x.itertext()).strip() for x in trs.pop(0).findall("td")]
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# ['Channel', 'Lock Status', 'Modulation', 'Channel ID', 'Frequency', 'Power', 'SNR', 'Corrected', 'Uncorrectables']
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mapper = lambda x, y: (x, y)
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# Summation Graphs
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correct = 0
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uncorr = 0
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power = {"up": ["U"] * UPCOUNT, "down": ["U"] * DOWNCOUNT}
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snr = ["U"] * DOWNCOUNT
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for row in trs:
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data = dict(
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map(
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mapper, headings, ["".join(x.itertext()).strip() for x in row.findall("td")]
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)
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)
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uncorr += int(data["Uncorrectables"])
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correct += int(data["Corrected"])
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channel = int(data["Channel"])
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print("multigraph arris_power.down_{0}".format(channel))
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value = data["Power"].split(" ")[0]
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print("power.value {0}".format(value))
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power["down"][channel - 1] = value
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print("multigraph arris_snr.down_{0}".format(channel))
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value = data["SNR"].split(" ")[0]
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print("snr.value {0}".format(value))
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snr[channel - 1] = value
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print("multigraph arris_error.down_{0}".format(channel))
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print("corr.value {0}".format(data["Corrected"]))
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print("uncr.value {0}".format(data["Uncorrectables"]))
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# Fill missing
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for i in range(len(trs), DOWNCOUNT):
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print("multigraph arris_power.down_{0}".format(i + 1))
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print("power.value U")
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print("multigraph arris_snr.down_{0}".format(i + 1))
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print("snr.value U")
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print("multigraph arris_error.down_{0}".format(i + 1))
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print("corr.value U")
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print("uncr.value U")
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print("multigraph arris_error")
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print("corr.value {0}".format(correct))
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print("uncr.value {0}".format(uncorr))
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print("multigraph arris_snr")
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for i in range(0, DOWNCOUNT):
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print("down_{0}.value {1}".format(i + 1, snr[i]))
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trs = upstream.findall("tr")
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# drop title
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trs.pop(0)
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headings = ["".join(x.itertext()).strip() for x in trs.pop(0).findall("td")]
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# ['Channel', 'Lock Status', 'US Channel Type', 'Channel ID', 'Symbol Rate', 'Frequency', 'Power']
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for row in trs:
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data = dict(
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map(
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mapper, headings, ["".join(x.itertext()).strip() for x in row.findall("td")]
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)
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)
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channel = int(data["Channel"])
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print("multigraph arris_power.up_{0}".format(channel))
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value = data["Power"].split(" ")[0]
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print("power.value {0}".format(value))
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power["up"][channel - 1] = value
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# Fill missing
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for i in range(len(trs), UPCOUNT):
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print("multigraph arris_power.up_{0}".format(i + 1))
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print("power.value U")
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print("multigraph arris_power")
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for i in range(0, DOWNCOUNT):
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print("down_{0}.value {1}".format(i + 1, power["down"][i]))
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for i in range(0, UPCOUNT):
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print("up_{0}.value {1}".format(i + 1, power["up"][i]))
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