155 lines
5.1 KiB
Lua
155 lines
5.1 KiB
Lua
-- contrib/net_linux.lua
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-- Copyright (C) 2009 Henning Glawe <glaweh@debian.org>
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-- Copyright (C) 2009 Lucas de Vries <lucas@glacicle.com>
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-- Copyright (C) 2010 Adrian C. <anrxc@sysphere.org>
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-- Copyright (C) 2017 Jörg Thalheim <joerg@higgsboson.tk>
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-- Copyright (C) 2017 Roberto <empijei@users.noreply.github.com>
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--
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-- This file is part of Vicious.
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--
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-- Vicious 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
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-- published by the Free Software Foundation, either version 2 of the
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-- License, or (at your option) any later version.
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--
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-- Vicious 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
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-- along with Vicious. If not, see <https://www.gnu.org/licenses/>.
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-- {{{ Grab environment
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local pairs = pairs
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local tonumber = tonumber
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local os = { time = os.time }
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local io = { lines = io.lines }
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local setmetatable = setmetatable
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local string = { match = string.match }
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local helpers = require("vicious.helpers")
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-- }}}
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-- Net: provides usage statistics for all network interfaces
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-- vicious.contrib.net
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local net_linux = {}
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-- Initialise function tables
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local nets = {}
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-- Variable definitions
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local unit = { ["b"] = 1, ["kb"] = 1024,
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["mb"] = 1024^2, ["gb"] = 1024^3
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}
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-- {{{ Net widget type
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local function worker(format, tignorelist)
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local args = {}
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local tignore = {}
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local total_rx = 0
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local total_tx = 0
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local any_up = 0
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if not tignorelist then
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tignorelist = {"lo", "wmaster0"}
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end
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for k, i in pairs(tignorelist) do
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tignore[i] = true
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end
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-- Get NET stats
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for line in io.lines("/proc/net/dev") do
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-- Match wmaster0 as well as rt0 (multiple leading spaces)
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local name = string.match(line, "^[%s]?[%s]?[%s]?[%s]?([%w]+):")
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if name ~= nil then
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-- Received bytes, first value after the name
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local recv = tonumber(string.match(line, ":[%s]*([%d]+)"))
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-- Transmited bytes, 7 fields from end of the line
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local send = tonumber(string.match(line,
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"([%d]+)%s+%d+%s+%d+%s+%d+%s+%d+%s+%d+%s+%d+%s+%d$"))
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if not tignore[name] then
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total_rx = total_rx + recv
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total_tx = total_tx + send
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end
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helpers.uformat(args, name .. " rx", recv, unit)
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helpers.uformat(args, name .. " tx", send, unit)
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if nets[name] == nil then
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-- Default values on the first run
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nets[name] = {}
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helpers.uformat(args, name .. " down", 0, unit)
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helpers.uformat(args, name .. " up", 0, unit)
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args["{"..name.." carrier}"] = 0
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nets[name].time = os.time()
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else -- Net stats are absolute, substract our last reading
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local interval = os.time() - nets[name].time > 0 and
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os.time() - nets[name].time or 1
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nets[name].time = os.time()
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local down = (recv - nets[name][1]) / interval
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local up = (send - nets[name][2]) / interval
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helpers.uformat(args, name .. " down", down, unit)
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helpers.uformat(args, name .. " up", up, unit)
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-- Carrier detection
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sysnet = helpers.pathtotable("/sys/class/net/" .. name)
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if sysnet.carrier then
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ccarrier = tonumber(sysnet.carrier)
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args["{"..name.." carrier}"] = ccarrier
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if ccarrier == 1 and not tignore[name] then
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any_up = 1
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end
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else
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args["{"..name.." carrier}"] = 0
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end
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end
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-- Store totals
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nets[name][1] = recv
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nets[name][2] = send
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end
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end
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helpers.uformat(args, "total rx", total_rx, unit)
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helpers.uformat(args, "total tx", total_tx, unit)
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if nets["total"] == nil then
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-- Default values on the first run
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nets["total"] = {}
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helpers.uformat(args, "total down", 0, unit)
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helpers.uformat(args, "total up", 0, unit)
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args["{total carrier}"] = 0
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nets["total"].time = os.time()
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else -- Net stats are absolute, substract our last reading
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local interval = os.time() - nets["total"].time > 0 and
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os.time() - nets["total"].time or 1
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nets["total"].time = os.time()
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local down = (total_rx - nets["total"][1]) / interval
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local up = (total_tx - nets["total"][2]) / interval
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helpers.uformat(args, "total down", down, unit)
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helpers.uformat(args, "total up", up, unit)
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args["{total carrier}"] = any_up
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end
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-- Store totals
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nets["total"][1] = total_rx
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nets["total"][2] = total_tx
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return args
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end
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-- }}}
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return setmetatable(net_linux, { __call = function(_, ...) return worker(...) end })
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