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125 lines
4.7 KiB
125 lines
4.7 KiB
--
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-- This file is part of SmartSNMP
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-- Copyright (C) 2014, Credo Semiconductor Inc.
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--
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-- This program is free software; you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation; either version 2 of the License, or
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-- (at your option) any later version.
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--
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-- This program is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License along
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-- with this program; if not, write to the Free Software Foundation, Inc.,
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-- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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--
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local mib = require "smartsnmp"
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require "ubus"
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require "uloop"
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uloop.init()
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local conn = ubus.connect()
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if not conn then
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error("Failed to connect to ubusd")
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end
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local if_cache = {}
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local if_status_cache = {}
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local if_index_cache = {}
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local last_load_time = os.time()
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local function need_to_reload()
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if os.time() - last_load_time >= 3 then
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last_load_time = os.time()
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return true
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else
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return false
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end
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end
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local function load_config()
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if need_to_reload() == true then
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if_cache = {}
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if_status_cache = {}
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if_index_cache = {}
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-- if description
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for k, v in pairs(conn:call("network.device", "status", {})) do
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if_status_cache[k] = {}
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end
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for name_ in pairs(if_status_cache) do
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for k, v in pairs(conn:call("network.device", "status", { name = name_ })) do
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if k == 'mtu' then
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if_status_cache[name_].mtu = v
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elseif k == 'macaddr' then
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if_status_cache[name_].macaddr = v
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elseif k == 'up' then
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if v == true then
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if_status_cache[name_].up = 1
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else
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if_status_cache[name_].up = 2
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end
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elseif k == 'statistics' then
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for item, stat in pairs(v) do
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if item == 'rx_bytes' then
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if_status_cache[name_].in_octet = stat
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elseif item == 'tx_bytes' then
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if_status_cache[name_].out_octet = stat
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elseif item == 'rx_errors' then
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if_status_cache[name_].in_errors = stat
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elseif item == 'tx_errors' then
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if_status_cache[name_].out_errors = stat
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elseif item == 'rx_dropped' then
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if_status_cache[name_].in_discards = stat
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elseif item == 'tx_dropped' then
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if_status_cache[name_].out_discards = stat
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end
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end
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end
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end
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end
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if_cache['desc'] = {}
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for name, status in pairs(if_status_cache) do
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table.insert(if_cache['desc'], name)
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for k, v in pairs(status) do
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if if_cache[k] == nil then if_cache[k] = {} end
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table.insert(if_cache[k], v)
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end
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end
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-- if index
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for i in ipairs(if_cache['desc']) do
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table.insert(if_index_cache, i)
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end
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end
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end
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mib.module_methods.or_table_reg("1.3.6.1.2.1.2", "The MIB module for managing Interfaces implementations")
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local ifGroup = {
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[1] = mib.ConstInt(function () load_config() return #if_index_cache end),
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[2] = {
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[1] = {
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[1] = mib.ConstIndex(function () load_config() return if_index_cache end),
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[2] = mib.ConstString(function (i) load_config() return if_cache['desc'][i] end),
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[4] = mib.ConstInt(function (i) load_config() return if_cache['mtu'][i] end),
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[6] = mib.ConstString(function (i) load_config() return if_cache['macaddr'][i] end),
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[8] = mib.ConstInt(function (i) load_config() return if_cache['up'][i] end),
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[10] = mib.ConstCount(function (i) load_config() return if_cache['in_octet'][i] end),
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[13] = mib.ConstCount(function (i) load_config() return if_cache['in_discards'][i] end),
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[14] = mib.ConstCount(function (i) load_config() return if_cache['in_errors'][i] end),
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[16] = mib.ConstCount(function (i) load_config() return if_cache['out_octet'][i] end),
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[19] = mib.ConstCount(function (i) load_config() return if_cache['out_discards'][i] end),
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[20] = mib.ConstCount(function (i) load_config() return if_cache['out_errors'][i] end),
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}
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}
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}
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return ifGroup
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