checks/aironet_clients

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
  11 # +------------------------------------------------------------------+
  12 #
  13 # This file is part of Check_MK.
  14 # The official homepage is at http://mathias-kettner.de/check_mk.
  15 #
  16 # check_mk is free software;  you can redistribute it and/or modify it
  17 # under the  terms of the  GNU General Public License  as published by
  18 # the Free Software Foundation in version 2.  check_mk is  distributed
  19 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  20 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  21 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  22 # tails. You should have  received  a copy of the  GNU  General Public
  23 # License along with GNU Make; see the file  COPYING.  If  not,  write
  24 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  25 # Boston, MA 02110-1301 USA.
  26
  27 aironet_default_strength_levels = (-25, -20)
  28 aironet_default_quality_levels = (40, 35)
  29
  30 # Note: this check uses three different items in order
  31 # to distinguish three independent aspects. This should rather
  32 # be converted to subchecks, because:
  33 # - Subchecks can ship separate PNP templates.
  34 # - Perf-O-Meters need separate checks, as well.
  35 # - WATO configuration is done on a per-check basis and
  36 #   the parameters for the three aspects are not of the same
  37 #   meaing and type
  38
  39
  40 def inventory_aironet_clients(info):
  41     if len(info) > 0:
  42         return [("strength", "aironet_default_strength_levels"),
  43                 ("quality", "aironet_default_quality_levels"), ("clients", None)]
  44
  45
  46 def check_aironet_clients(item, params, info):
  47     info = [line for line in info if line[0] != '']
  48
  49     if len(info) == 0:
  50         return (0, "No clients currently logged in")
  51
  52     if item == "clients":
  53         return (0, "%d clients currently logged in" % len(info), [("clients", len(info), None, None,
  54                                                                    0, None)])
  55
  56     # item = "quality" or "strength"
  57     if item == "quality":
  58         index = 1
  59         mmin = 0
  60         mmax = 100
  61         unit = "%"
  62         neg = 1
  63     else:
  64         index = 0
  65         mmin = None
  66         mmax = 0
  67         unit = "dB"
  68         neg = -1
  69
  70     avg = sum([saveint(line[index]) for line in info]) / float(len(info))
  71     warn, crit = params
  72     perfdata = [(item, avg, warn, crit, mmin, mmax)]
  73     infotxt = "signal %s at %.1f%s (warn/crit at %s%s/%s%s)" % \
  74         (item, avg, unit, warn, unit, crit, unit)
  75
  76     if neg * avg <= neg * crit:
  77         return (2, infotxt, perfdata)
  78     elif neg * avg <= neg * warn:
  79         return (1, infotxt, perfdata)
  80     return (0, infotxt, perfdata)
  81
  82
  83 check_info["aironet_clients"] = {
  84     'check_function': check_aironet_clients,
  85     'inventory_function': inventory_aironet_clients,
  86     'service_description': 'Average client signal %s',
  87     'has_perfdata': True,
  88     'snmp_info': (
  89         '.1.3.6.1.4.1.9.9.273.1.3.1.1',
  90         [
  91             3,  # CISCO-DOT11-ASSOCIATION-MIB::cDot11ClientSignalStrength
  92             4,  # CISCO-DOT11-ASSOCIATION-MIB::cDot11ClientSigQuality
  93         ]),
  94     'snmp_scan_function': lambda oid: oid(".1.3.6.1.2.1.1.2.0") in [
  95         ".1.3.6.1.4.1.9.1.525",
  96         ".1.3.6.1.4.1.9.1.618",
  97         ".1.3.6.1.4.1.9.1.685",
  98         ".1.3.6.1.4.1.9.1.758",
  99         ".1.3.6.1.4.1.9.1.1034",
 100         ".1.3.6.1.4.1.9.1.1247",
 101         ".1.3.6.1.4.1.9.1.1873",
 102         ".1.3.6.1.4.1.9.1.1661",
 103         ".1.3.6.1.4.1.9.1.2240",],
 104 }