#!/usr/bin/lua
--[[
Part of AREDN -- Used for creating Amateur Radio Emergency Data Networks
Copyright (C) 2022 Tim Wilkinson
See Contributors file for additional contributors
This program 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 version 3 of the License.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see .
Additional Terms:
Additional use restrictions exist on the AREDN(TM) trademark and logo.
See AREDNLicense.txt for more info.
Attributions to the AREDN Project must be retained in the source code.
If importing this code into a new or existing project attribution
to the AREDN project must be added to the source code.
You must not misrepresent the origin of the material contained within.
Modified versions must be modified to attribute to the original source
and be marked in reasonable ways as differentiate it from the original
version
--]]
require("uci")
require("nixio")
local info = require("aredn.info")
local node = info.get_nvram("node")
local q = os.getenv("QUERY_STRING") or ""
local server = q:match("server=([^&]*)")
local protocol = q:match("protocol=([^&]*)") or "tcp"
print "Content-type: text/html\r"
print "Cache-Control: no-store\r"
print("Access-Control-Allow-Origin: *\r")
print("\r")
if uci.cursor():get("aredn", "@iperf[0]", "enable") == "0" then
print("CLIENT DISABLED
iperf is disabled
")
elseif not server then
print("
Provide a server name to run a test between this client and a server [/cgi-bin/iperf?server=<ServerName>&protocol=<udp|tcp>]
")
elseif server:match("[^%w%-%.]") then
print("ERROR
Illegal server name
")
else
-- Using io.popen here causes the script to terminate (a bug?), so we have this workaround
if os.execute('if [ "$(pidof iperf3)" = "" ]; then exit 0; else exit 1; fi') ~= 0 then
print("BUSY
iperf server busy
")
return
end
if server == "" then
os.execute("iperf3 -s -D -1 --idle-timeout 20 -B " .. node)
nixio.nanosleep(1, 0)
print("RUNNING
iperf server running
")
else
if not server:match("%.") then
server = server .. ".local.mesh"
end
local status = ""
local f = io.popen("wget -q -O - 'http://" .. server .. ":8080/cgi-bin/iperf?server=' 2>&1")
if f then
status = f:read("*a")
f:close()
end
if status:match("running") then
print("SUCCESS
Client: " .. node .. "\nServer: " .. server .. "\n" .. io.popen("p=$$;setsid sh -c \"(sleep 20; kill $p)\" > /dev/null 2>&1 & /usr/bin/iperf3 --forceflush -b 0 -Z -c " .. server .. (protocol == "udp" and " -u" or "") .. " -l 1K 2>&1"):read("*a") .. "
")
elseif status:match("iperf is disabled") then
print("SERVER DISABLED