#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
# +------------------------------------------------------------------+
#
# This file is part of Check_MK.
# The official homepage is at http://mathias-kettner.de/check_mk.
#
# check_mk is free software;  you can redistribute it and/or modify it
# under the  terms of the  GNU General Public License  as published by
# the Free Software Foundation in version 2.  check_mk is  distributed
# in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
# out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
# PARTICULAR PURPOSE. See the  GNU General Public License for more de-
# tails. You should have  received  a copy of the  GNU  General Public
# License along with GNU Make; see the file  COPYING.  If  not,  write
# to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
# Boston, MA 02110-1301 USA.

def inventory_steelhead_connections(info):
    if len(info) >= 7:
        return [(None, {})]


def check_steelhead_connections(item, params, info):
    if params is None:
        params = {}

    map_counter_types = {
        "1" : "optimized",
        "2" : "passthrough",
        "3" : "halfOpened",
        "4" : "halfClosed",
        "5" : "established",
        "6" : "active",
        "7" : "total", }

    values = {}
    for oid, value in info:
        counter_type = oid.strip('.').split('.')[-2]
        key = map_counter_types.get(counter_type, "unknown")
        values[key] = int(value)

    # leave out total and optimized in perfdata since they can be computed
    for key, title, has_perf in [
        ("total",       "Total connections", False),
        ("passthrough", "Passthrough",       True),
        ("optimized",   "Optimized",         False),
        ("active",      "Active",            True),
        ("established", "Established",       True),
        ("halfOpened",  "Half opened",       True),
        ("halfClosed",  "Half closed",       True),
        ]:
        value = values[key]
        if has_perf:
            perfdata = [(key, value)]
        else:
            perfdata = []

        infotext = "%s: %d" % (title, value)
        state = 0
        if params.get(key):
            warn, crit = params[key]
            if value >= crit:
                state = 2
            elif value >= warn:
                state = 1
            if state > 0:
                infotext += " (warn/crit at %d/%d)" % (warn, crit)

        yield state, infotext, perfdata


check_info['steelhead_connections'] = {
    "inventory_function"    : inventory_steelhead_connections,
    "check_function"        : check_steelhead_connections,
    "service_description"   : "Connections",
    "has_perfdata"          : True,
    "snmp_info"             : (".1.3.6.1.4.1.17163.1.1.5", [ OID_STRING, 2 ]),
    "snmp_scan_function"    : lambda oid: oid(".1.3.6.1.2.1.1.2.0").startswith(".1.3.6.1.4.1.17163."),
    "group"                 : "steelhead_connections",
}
