1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
--[[
Licensed under GNU General Public License v2
* (c) 2013, Luca CPZ
* (c) 2010-2012, Peter Hofmann
--]]
local helpers = require("lain.helpers")
local naughty = require("naughty")
local wibox = require("wibox")
local string = string
-- Network infos
-- lain.widget.net
local function factory(args)
args = args or {}
local net = { widget = args.widget or wibox.widget.textbox(), devices = {} }
local timeout = args.timeout or 2
local units = args.units or 1024 -- KB
local notify = args.notify or "on"
local wifi_state = args.wifi_state or "off"
local eth_state = args.eth_state or "off"
local screen = args.screen or 1
local settings = args.settings or function() end
-- Compatibility with old API where iface was a string corresponding to 1 interface
net.iface = (args.iface and (type(args.iface) == "string" and {args.iface}) or
(type(args.iface) == "table" and args.iface)) or {}
function net.get_devices()
net.iface = {} -- reset at every call
helpers.line_callback("ip link", function(line)
net.iface[#net.iface + 1] = not string.match(line, "LOOPBACK") and string.match(line, "(%w+): <") or nil
end)
end
if #net.iface == 0 then net.get_devices() end
function net.update()
-- These are the totals over all specified interfaces
net_now = {
devices = {},
-- Bytes since last iteration
sent = 0,
received = 0
}
for _, dev in ipairs(net.iface) do
local dev_now = {}
local dev_before = net.devices[dev] or { last_t = 0, last_r = 0 }
local now_t = tonumber(helpers.first_line(string.format("/sys/class/net/%s/statistics/tx_bytes", dev)) or 0)
local now_r = tonumber(helpers.first_line(string.format("/sys/class/net/%s/statistics/rx_bytes", dev)) or 0)
dev_now.carrier = helpers.first_line(string.format("/sys/class/net/%s/carrier", dev)) or "0"
dev_now.state = helpers.first_line(string.format("/sys/class/net/%s/operstate", dev)) or "down"
dev_now.sent = (now_t - dev_before.last_t) / timeout / units
dev_now.received = (now_r - dev_before.last_r) / timeout / units
net_now.sent = net_now.sent + dev_now.sent
net_now.received = net_now.received + dev_now.received
dev_now.sent = string.format("%.1f", dev_now.sent)
dev_now.received = string.format("%.1f", dev_now.received)
dev_now.last_t = now_t
dev_now.last_r = now_r
if wifi_state == "on" and helpers.first_line(string.format("/sys/class/net/%s/uevent", dev)) == "DEVTYPE=wlan" then
dev_now.wifi = true
if string.match(dev_now.carrier, "1") then
dev_now.signal = tonumber(string.match(helpers.lines_from("/proc/net/wireless")[3], "(%-%d+%.)")) or nil
end
else
dev_now.wifi = false
end
if eth_state == "on" and helpers.first_line(string.format("/sys/class/net/%s/uevent", dev)) ~= "DEVTYPE=wlan" then
dev_now.ethernet = true
else
dev_now.ethernet = false
end
net.devices[dev] = dev_now
-- Notify only once when connection is lost
if string.match(dev_now.carrier, "0") and notify == "on" and helpers.get_map(dev) then
naughty.notify {
title = dev,
text = "No carrier",
icon = helpers.icons_dir .. "no_net.png",
screen = screen
}
helpers.set_map(dev, false)
elseif string.match(dev_now.carrier, "1") then
helpers.set_map(dev, true)
end
net_now.carrier = dev_now.carrier
net_now.state = dev_now.state
net_now.devices[dev] = dev_now
-- net_now.sent and net_now.received will be
-- the totals across all specified devices
end
net_now.sent = string.format("%.1f", net_now.sent)
net_now.received = string.format("%.1f", net_now.received)
widget = net.widget
settings()
end
helpers.newtimer("network", timeout, net.update)
return net
end
return factory
|
