#!/usr/bin/python
# -*- encoding: utf-8; py-indent-offset: 4 -*-
# +------------------------------------------------------------------+
# |             ____ _               _        __  __ _  __           |
# |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
# |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
# |           | |___| | | |  __/ (__|   <    | |  | | . \            |
# |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
# |                                                                  |
# | Copyright Mathias Kettner 2015             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.

# Example output:
# Overall memory
# .1.3.6.1.4.1.3375.2.1.7.1.1.0 8396496896 sysHostMemoryTotal
# .1.3.6.1.4.1.3375.2.1.7.1.2.0 1331092416 sysHostMemoryUsed
#
# TMM (Traffic Management Module) memory
# .1.3.6.1.4.1.3375.2.1.1.2.1.44.0 0 sysStatMemoryTotal
# .1.3.6.1.4.1.3375.2.1.1.2.1.45.0 0 sysStatMemoryUsed

factory_settings["f5_bigip_mem_default_levels"] = {
    "levels"    : ("perc_used", (80.0, 90.0))
}

def parse_f5_bigip_mem(info):
    parsed = {
        "mem" : (info[0][0], info[0][1]),
        "tmm" : (info[0][2], info[0][3]),
    }
    return parsed

def inventory_f5_bigip_mem(parsed):
    return [ ( "total", {} ) ]


def check_f5_bigip_mem(item, params, parsed):
    mem_total, mem_used = parsed["mem"]
    return check_memory_simple(float(mem_used), float(mem_total), params)

check_info['f5_bigip_mem'] = {
    'parse_function'            : parse_f5_bigip_mem,
    'inventory_function'        : inventory_f5_bigip_mem,
    'check_function'            : check_f5_bigip_mem,
    'service_description'       : 'Memory',
    'has_perfdata'              : True,
    'snmp_info'                 : (".1.3.6.1.4.1.3375.2.1", [
                                        "7.1.1",     # F5-BIGIP-SYSTEM-MIB::sysHostMemoryTotal
                                        "7.1.2",     # F5-BIGIP-SYSTEM-MIB::sysHostMemoryUsed
                                        "1.2.1.143", # F5-BIGIP-SYSTEM-MIB::sysStatMemoryTotalKb
                                        "1.2.1.144", # F5-BIGIP-SYSTEM-MIB::sysStatMemoryUsedKb
                                  ]),
    'snmp_scan_function'        : lambda oid: ".1.3.6.1.4.1.3375" in oid(".1.3.6.1.2.1.1.2.0"),
    'default_levels_variable'   : 'f5_bigip_mem_default_levels',
    'group'                     : 'memory_simple',
    'includes'                  : [ "memory.include" ],
}

def inventory_f5_bigip_mem_tmm(parsed):
    mem = parsed["tmm"][0]
    # Some devices obviously do not deliver this information...
    if not mem == '' and not float(mem) == 0:
        return [ ( "TMM", {} ) ]


def check_f5_bigip_mem_tmm(item, params, parsed):
    mem_total, mem_used = parsed["tmm"]
    return check_memory_simple(float(mem_used) * 1024, float(mem_total) * 1024, params)

check_info['f5_bigip_mem.tmm'] = {
    'inventory_function'        : inventory_f5_bigip_mem_tmm,
    'check_function'            : check_f5_bigip_mem_tmm,
    'service_description'       : 'Memory',
    'has_perfdata'              : True,
    'default_levels_variable'   : 'f5_bigip_mem_default_levels',
    'group'                     : 'memory_simple',
    'includes'                  : [ "memory.include" ],
}
