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- #!/usr/bin/lua
- local fs = require('nixio.fs')
- local uci = require('luci.model.uci').cursor()
- local iwinfo = require "iwinfo"
- local site = require 'gluon.site_config'
- local fileOk="/tmp/ath9k-ok"
- local fileReset="/tmp/ath9k-reset"
- function time2file (file)
- local f = io.open(file, 'w')
- f:write(string.format('%i', os.time()))
- f:close()
- end
- function devOk (iface)
- local radio = uci:get_all('wireless', iface, 'radio')
- local disabled = uci:get_bool('wireless', iface, 'disabled') or uci:get_bool('wireless', radio, 'disabled')
- if disabled then
- return null
- end
- local hwmode = uci:get_all('wireless', radio, 'hwmode')
- if not hwmode == '11g' then
- return null
- end
- local wifitype = iwinfo.type(radio)
- local assoclist = iwinfo[wifitype].assoclist(iface)
- if assoclist and #assoclist > 0 then
- return true
- end
- return false
- end
- function check_wifi()
- local ifaces = {}
- uci:foreach('wireless', 'wifi-iface',
- function(s)
- table.insert(ifaces, s['.name'])
- end
- )
- local blackout = false
- for _, iface in ipairs(ifaces) do
- local tmp = devOk(iface)
- if tmp then
- return true
- elseif tmp == false then
- blackout = true
- end
- end
- return not blackout
- end
- if not fs.readfile(fileReset) then
- time2file(fileReset)
- end
- if check_wifi() or not fs.readfile(fileOk) then
- time2file(fileOk)
- os.exit(0)
- end
- local blackout_wait_secs = site.ath9k-workaround.blackout_wait *60
- local reset_wait_secs = site.ath9k-workaround.reset_wait *60
- if os.difftime(os.time(), tonumber(fs.readfile(fileReset))) <= reset_wait_secs then
- os.exit(0)
- end
- if os.difftime(os.time(), tonumber(fs.readfile(fileOk))) <= blackout_wait_secs then
- os.exit(0)
- end
- io.popen('logger -s -t ath9k-blackout-workaround -p local0.info "blackout detected, resart wifi"')
- time2file(fileReset)
- os.execute("wifi")
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