#!/usr/bin/lua

local site = require 'gluon.site_config'

local uci = require('luci.model.uci').cursor()


local function configure_mtu(radio, config)
  local mesh = 'mesh_' .. radio

  if config.mesh_vlan then
    uci:set('network', mesh, 'mtu', 1536)
    uci:set('network', mesh .. '_vlan', 'mtu', 1532)
  else
    uci:set('network', mesh, 'mtu', 1532)
  end
end


local radios = {}

uci:foreach('wireless', 'wifi-device',
	    function(s)
	      table.insert(radios, s['.name'])
	    end
)

for _, radio in ipairs(radios) do
	local hwmode = uci:get('wireless', radio, 'hwmode')

	if hwmode == '11g' or hwmode == '11ng' then
	  configure_mtu(radio, site.wifi24)
	elseif hwmode == '11a' or hwmode == '11na' then
	  configure_mtu(radio, site.wifi5)
	end
end


uci:save('network')
uci:commit('network')