gluon/package/gluon-core/luasrc/lib/gluon/upgrade/820-dns-config

#!/usr/bin/lua

local site = require 'gluon.site'
local uci = require('simple-uci').cursor()

local dns = site.dns({})
local next_node = site.next_node({})

local dnsmasq = uci:get_first("dhcp", "dnsmasq")

uci:set('dhcp', dnsmasq, 'localise_queries', true)
uci:set('dhcp', dnsmasq, 'localservice', false)

uci:set('dhcp', dnsmasq, 'server', dns.servers)
uci:set('dhcp', dnsmasq, 'cachesize', dns.cacheentries)

uci:delete('firewall', 'client_dns')
if dns.servers then
	-- allow inbound traffic for dns from client zone
	uci:section('firewall', 'rule', 'client_dns', {
		src = 'local_client',
		dest_port = '53',
		proto = 'tcpudp',
		target = 'ACCEPT',
	})
end

if next_node.name and next_node.ip4 then
	uci:section('dhcp', 'domain', 'nextnode4', {
		name = next_node.name,
		ip = next_node.ip4,
	})
else
	uci:delete('dhcp', 'domain', 'nextnode4')
end

if next_node.name and next_node.ip6 then
	uci:section('dhcp', 'domain', 'nextnode6', {
		name = next_node.name,
		ip = next_node.ip6,
	})
else
	uci:delete('dhcp', 'domain', 'nextnode6')
end

uci:save('dhcp')
uci:save('firewall')