checks/juniper_bgp_state

   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
  28 def _clean_v4_address(chunks):
  29     return "%d.%d.%d.%d" % tuple(chunks)
  30
  31
  32 def _clean_v6_address(chunks):
  33     ichunks = iter('%02x' % int(i) for i in chunks)
  34     blocks = ("%s%s" % pair for pair in zip(ichunks, ichunks))
  35     stripped_blocks = ('0' if b == '0000' else b.lstrip('0') for b in blocks)
  36     v6_string = ':'.join(b for b in stripped_blocks)
  37
  38     # replace longest series of zeros
  39     for length in range(8, 0, -1):
  40         subs = ':'.join('0' * length)
  41         if subs in v6_string:
  42             shortened = v6_string.replace(subs, '', 1)
  43             if not shortened or shortened.startswith(':'):
  44                 shortened = ':' + shortened
  45             if shortened.endswith(':'):
  46                 shortened += ':'
  47             return '[%s]' % shortened
  48     return v6_string
  49
  50
  51 def juniper_bgp_state_create_item(peering_entry):
  52     try:
  53         if len(peering_entry) == 4:
  54             return _clean_v4_address(peering_entry)
  55         elif len(peering_entry) == 16:
  56             return _clean_v6_address(peering_entry)
  57     except (ValueError, IndexError):
  58         pass
  59     return ' '.join('%02X' % int(i) for i in peering_entry)  # that's what has been in the data
  60
  61
  62 def parse_juniper_bgp_state(info):
  63     bgp_state_map = {
  64         "0": "undefined",  # 0 does not exist
  65         "1": "idle",  # 1
  66         "2": "connect",  # 2
  67         "3": "active",  # 3
  68         "4": "opensent",  # 4
  69         "5": "openconfirm",  # 5
  70         "6": "established",  # 6
  71     }
  72     bgp_operational_state_map = {
  73         "0": "undefined",  # 0 does not exist
  74         "1": "halted",  # 1
  75         "2": "running"  # 2
  76     }
  77     parsed = {}
  78     for state, operational_state, peering_entry in info:
  79         item = juniper_bgp_state_create_item(peering_entry)
  80         state_txt = bgp_state_map.get(state.strip(), "undefined")
  81         operational_txt = bgp_operational_state_map.get(operational_state.strip(), "undefined")
  82
  83         parsed[item] = {
  84             "state": state_txt,
  85             "operational_state": operational_txt,
  86         }
  87     return parsed
  88
  89
  90 @get_parsed_item_data
  91 def check_juniper_bgp_state(item, _no_params, data):
  92     state = data.get('state', "undefined")
  93     operational_state = data.get('operational_state', "undefined")
  94
  95     status = {
  96         "established": 0,
  97         "undefined": 3,
  98     }.get(state, 2)
  99     # if we're halted, being un-established is fine
 100     yield status if operational_state == "running" else 0, \
 101         "Status with peer %s is %s" % (item, state)
 102
 103     op_status = {
 104         "running": 0,
 105         "undefined": 3,
 106     }.get(operational_state, 1)
 107     yield op_status, "operational status: %s" % operational_state
 108
 109
 110 check_info["juniper_bgp_state"] = {
 111     "parse_function": parse_juniper_bgp_state,
 112     "check_function": check_juniper_bgp_state,
 113     "inventory_function": discover(),
 114     "service_description": "BGP Status Peer %s",
 115     "snmp_info": (
 116         '.1.3.6.1.4.1.2636.5.1.1.2.1.1.1',
 117         [
 118             2,  # jnxBgpM2PeerState
 119             3,  # jnxBgpM2PeerStatus (like operational status)
 120             BINARY(11),  # jnxBgpM2PeerRemoteAddr
 121         ]),
 122     "snmp_scan_function":
 123         lambda oid: oid(".1.3.6.1.2.1.1.2.0").startswith(".1.3.6.1.4.1.2636.1.1.1"),
 124 }