checks/tcp_connections.include

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2015             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 # parsed = {
  28 #     "ESTABLISHED" : 6,
  29 #     "BOUND"       : 17,
  30 #     "SYN_SENT"    : 1,
  31 #     "LISTEN"      : 10,
  32 # }
  33
  34 tcp_conn_stats_default_levels = {}
  35
  36
  37 def inventory_tcp_connections(parsed):
  38     if parsed:
  39         return [(None, 'tcp_conn_stats_default_levels')]
  40
  41
  42 def check_tcp_connections(item, params, parsed):
  43     if not parsed:
  44         yield 0, "Currently no TCP connections"
  45         return
  46
  47     for tcp_state, tcp_count in parsed.iteritems():
  48         if tcp_count <= 0:
  49             continue
  50
  51         infotext = "%s: %s" % (tcp_state, tcp_count)
  52         state = 0
  53         warn, crit = params.get(tcp_state, (None, None))
  54         if crit is not None and tcp_count >= crit:
  55             state = 2
  56         elif warn is not None and tcp_count >= warn:
  57             state = 1
  58         if state:
  59             infotext += " (warn/crit at %d/%d)" % (warn, crit)
  60         yield state, infotext, [(tcp_state, tcp_count, warn, crit)]