84 lines
2.7 KiB
Lua
84 lines
2.7 KiB
Lua
--
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-- Copyright (C) 2018-2020 Ruilin Peng (Nick) <pymumu@gmail.com>.
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--
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-- smartdns is free software: you can redistribute it and/or modify
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-- it under the terms of the GNU General Public License as published by
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-- the Free Software Foundation, either version 3 of the License, or
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-- (at your option) any later version.
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--
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-- smartdns is distributed in the hope that it will be useful,
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-- but WITHOUT ANY WARRANTY; without even the implied warranty of
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-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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-- GNU General Public License for more details.
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--
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-- You should have received a copy of the GNU General Public License
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-- along with this program. If not, see <http://www.gnu.org/licenses/>.
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module("luci.controller.smartdns", package.seeall)
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local smartdns = require "luci.model.smartdns"
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function index()
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if not nixio.fs.access("/etc/config/smartdns") then
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return
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end
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local page
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page = entry({"admin", "services", "smartdns"}, cbi("smartdns/smartdns"), _("SmartDNS"), 60)
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page.dependent = true
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page = entry({"admin", "services", "smartdns", "status"}, call("act_status"))
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page.leaf = true
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page = entry({"admin", "services", "smartdns", "upstream"}, cbi("smartdns/upstream"), nil)
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page.leaf = true
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end
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local function is_running()
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return luci.sys.call("pidof smartdns >/dev/null") == 0
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end
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function act_status()
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local e={}
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local ipv6_server;
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local redirect_mode="none";
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e.ipv6_works = 2;
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e.ipv4_works = 2;
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e.ipv6_server = 1;
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e.dnsmasq_forward = 0;
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redirect_mode = smartdns.get_config_option("smartdns", "smartdns", "redirect", nil);
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if redirect_mode == "redirect" then
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e.redirect = 1
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elseif redirect_mode == "dnsmasq-upstream" then
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e.redirect = 2
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else
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e.redirect = 0
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end
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e.local_port = smartdns.get_config_option("smartdns", "smartdns", "port", nil);
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ipv6_server = smartdns.get_config_option("smartdns", "smartdns", "ipv6_server", nil);
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if e.redirect == 1 then
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if e.local_port ~= nil and e.local_port ~= "53" then
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e.ipv4_works = luci.sys.call("iptables -t nat -nL PREROUTING 2>/dev/null | grep REDIRECT | grep dpt:53 | grep %q >/dev/null 2>&1" % e.local_port) == 0
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if ipv6_server == "1" then
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e.ipv6_works = luci.sys.call("ip6tables -t nat -nL PREROUTING 2>/dev/null| grep REDIRECT | grep dpt:53 | grep %q >/dev/null 2>&1" % e.local_port) == 0
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else
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e.ipv6_works = 2
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end
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else
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e.redirect = 0
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end
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elseif e.redirect == 2 then
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local str;
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local dnsmasq_server = luci.sys.exec("uci get dhcp.@dnsmasq[0].server")
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if e.local_port ~= nil then
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str = "127.0.0.1#" .. e.local_port
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if string.sub(dnsmasq_server,1,string.len(str)) == str then
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e.dnsmasq_forward = 1
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end
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end
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end
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e.running = is_running()
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luci.http.prepare_content("application/json")
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luci.http.write_json(e)
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end
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