Support openwrt

ReadMe.md

@@ -1,19 +1,174 @@
-Smart DNS
+SmartDNS
 ==============
-Smard DNS会根据上级DNS服务返回的IP地址进行检查，如果IP地址无效，则继续进行DNS请求。
-
+SmartDNS是一个运行在本地的DNS服务器，SmartDNS接受本地客户端的DNS查询请求，从多个上游DNS服务器获取DNS查询结果，并将访问速度最快的结果返回个客户端，避免DNS污染，提高网络访问速度。
+同时支持指定特定域名IP地址，并高性匹配，达到过滤广告的效果。
 
 特性
 --------------
-1. 多级DNS配置
+1. **多DNS上游服务器**  
+   支持配置多个上游DNS服务器，并同时进行查询，即使其中有DNS服务器异常，也不会影响查询。  
+
+1. **返回最快IP地址**  
+   支持从域名所属IP地址列表中查找到访问速度最快的IP地址，并返回给客户端，避免DNS污染，提高网络访问速度。
+
+1. **支持非标准端口**  
+   支持非53端口查询，支持TCP查询，有效避免DNS污染。
+
+1. **特定域名IP地址指定**  
+   支持指定域名的IP地址，达到广告过滤效果，避免恶意网站的效果。
+
+1. **域名高性能后缀匹配**  
+   支持域名后缀匹配模式，简化过滤配置，过滤20万条记录时间<1ms
+
+1. **Linux多平台支持**  
+   支持标准Linux系统（树莓派），openwrt系统各种固件，华硕路由器原生固件。
+
+1. **支持IPV4, IPV6双栈**  
+   支持IPV4，IPV6网络，支持查询A, AAAA记录。
+
+1. **高性能，占用资源少**  
+   多线程异步IO模式，cache缓存查询结果。
+
+架构
+-------------
+![Architecture](doc/architecture.png)  
+1. SmartDNS接收本地网络设备的DNS查询请求，如PC，手机的查询请求。  
+2. SmartDNS将查询请求发送到多个上游DNS服务器，可采用标准UDP查询，非标准端口UDP查询，及TCP查询。  
+3. 上游DNS服务器返回域名对应的Server IP地址列表。SmartDNS检测与本地网络访问速度最快的Server IP。  
+4. 将访问速度最快的Server IP返回给本地客户端。  
 
 
 使用
 ==============
+下载配套安装包
+--------------
+下载配套版本的SmartDNS安装包，对应安装包配套关系如下。
+
+|系统 |安装包|说明
+|-----|-----|-----
+|标准Linux系统（树莓派）| smartdns.xxxxxxxx.armhf.deb|支持树莓派Raspbian stretch，Debian 9系统。
+|华硕原生固件|asusware.mipsbig.tar.gz|支持MIPS大端架构的系统，如RT-AC55U, RT-AC66U.
+|openwrt 15.01|smartdns.xxxxxxxx.ar71xx.ipk|支持AR71XX MIPS系统
+|openwrt LEDE|smartdns.1.2xxxxxxxx.mips_24kc.ipk|支持AR71XX MIPS系统。
+|openwrt LEDE|smartdns.1.2xxxxxxxx.mipsel_24kc.ipk|支持
+
+标准Linux系统安装（树莓派）
+--------------
+1. 安装
+```
+dpkg -i smartdns.xxxxxxxx.armhf.deb
+```
+2. 修改配置
+```
+vi /etc/smartdns/smartdns.conf
+```
+3. 启动服务
+```
+systemctl enable smartdns
+systemctl start smartdns
+```
+4. 修改本地路由器DNS指向树莓派  
+* 登录到本地网络的路由器中，配置树莓派分配静态IP地址。
+* 修改WAN口或者DHCP DNS为树莓派IP地址。  
+ 注意：  
+ I. 每款路由器配置方法不尽相同，请百度搜索相关的配置方法。  
+ II.  华为等路由器可能不支持配置DNS为本地IP，请修改PC端，手机端DNS服务器为树莓派IP。
+
+
+openwrt/LEDE
+--------------
+1. 安装
+将软件使用winscp上传到路由器的/root目录，执行如下命令安装
+```
+opkg install smartdns.xxxxxxxx.xxxx.ipk
+```
+
+2. 修改配置
+```
+vi /etc/smartdns/smartdns.conf
+```
+3. 启动服务
+```
+
+```
+
+华硕路由器原生固件
+--------------
+在使用此软件时，需要确认路由器是否支持U盘，并准备好U盘一个。
+
+1. 解压安装包到U盘根目录，其目录格式如下。（此处仅列出smartdns相关文件）
+```
+U盘
+ └── asusware.mipsbig
+          ├── bin
+          ├── etc
+          |    ├── smartdns 
+          |    |     └── smartdns.conf
+          |    └── init.d
+          |          └── S50smartdns         
+          ├── lib
+          ├── sbin
+          ├── usr
+          |    └── sbin
+          |          └── smartdns     
+          ....
+```
+2. 修改配置
+```
+vi asusware.mipsbig/etc/smartdns/smartdns.conf
+```
+3. 启动服务
+将U盘插入路由器后方USB插口，并重启路由器。
+
+4. 检测DNS服务是否生效
+待路由器启动后，使用nslookup查询域名，看命令结果中的`服务器`项目是否显示为`smartdns`，如显示smartdns则表示生效
+```
+C:\Users\meikechong>nslookup www.baidu.com
+服务器:  smartdns
+Address:  192.168.1.1
+
+非权威应答:
+名称:    www.a.shifen.com
+Address:  14.215.177.39
+Aliases:  www.baidu.com
+```
+
+配置参数
+==============
+|参数|功能|默认值|配置值|例子|
+|--|--|--|--|--|
+|server-name|DNS服务器名称|操作系统主机名/smartdns|符合主机名规格的字符串|server-name smartdns
+|bind|DNS监听端口号|[::]:53|IP:PORT|bind 192.168.1.1:53
+|cache-size|域名结果缓存个数|512|数字|cache-size 512
+|rr-ttl|域名结果TTL|远程查询结果|大于0的数字|rr-ttl 600
+|rr-ttl-min|允许的最小TTL值|远程查询结果|大于0的数字|rr-ttl-min 60
+|rr-ttl-max|允许的最大TTL值|远程查询结果|大于0的数组|rr-ttl-max 600
+|log-level|设置日志级别|error|error,warn,info,debug|log-level error
+|log-file|日志文件路径|/var/log/smartdns.log|路径|log-file /var/log/smartdns.log
+|log-size|日志大小|128K|数字+K,M,G|log-size 128K
+|log-num|日志归档个数|2|数字|log-num 2
+|server|上游UDP DNS|114.114.114.114|[ip][:port]，可重复| server 8.8.8.8:53
+|server-tcp|上游TCP DNS|无|[IP][:port]，可重复| server-tcp 8.8.8.8:53
+|address|指定域名IP地址|无|address /domain/ip| address /www.example.com/1.2.3.4
+
+捐助
+==============
+
+* Alipay 支付宝  
+![alipay](doc/alipay_donate.jpg)
+
+* Wechat 微信  
+![wechat](doc/wechat_donate.jpg)
+
+说明
+==============
+目前代码未开源，后续根据情况开源。
+
+  
+
+
+
 
 
-License
-===============
-GPL V2 License
 
 

package/debian/make.sh

@@ -1,30 +1,90 @@
 #/bin/sh
 
-CURR_DIR=`pwd`
+CURR_DIR=$(cd $(dirname $0);pwd)
 VER="`date +"1.%Y.%m.%d-%H%M"`"
 SMARTDNS_DIR=$CURR_DIR/../../
 SMARTDNS_BIN=$SMARTDNS_DIR/src/smartdns
-ROOT=/tmp/smartdns-deiban
-rm -fr $ROOT
-mkdir -p $ROOT
-cd $ROOT/
 
-cp $CURR_DIR/DEBIAN $ROOT/ -af
-CONTROL=$ROOT/DEBIAN/control
-mkdir $ROOT/usr/sbin -p
-mkdir $ROOT/etc/smartdns/ -p
-mkdir $ROOT/etc/default/ -p
-mkdir $ROOT/lib/systemd/system/ -p
+showhelp()
+{
+	echo "Usage: make [OPTION]"
+	echo "Options:"
+	echo " -o               output directory."
+	echo " --arch           archtecture."
+    echo " --ver            version."
+	echo " -h               show this message."
+}
 
-sed -i "s/Version:.*/Version: $VER/" $ROOT/DEBIAN/control
-chmod 0755 $ROOT/DEBIAN/prerm
+build()
+{
+    ROOT=/tmp/smartdns-deiban
+    rm -fr $ROOT
+    mkdir -p $ROOT
+    cd $ROOT/
 
-cp $SMARTDNS_DIR/etc/smartdns/smartdns.conf  $ROOT/etc/smartdns/
-cp $SMARTDNS_DIR/etc/default/smartdns  $ROOT/etc/default/
-cp $SMARTDNS_DIR/systemd/smartdns.service $ROOT/lib/systemd/system/ 
-cp $SMARTDNS_DIR/src/smartdns $ROOT/usr/sbin
-chmod +x $ROOT/usr/sbin/smartdns
+    cp $CURR_DIR/DEBIAN $ROOT/ -af
+    CONTROL=$ROOT/DEBIAN/control
+    mkdir $ROOT/usr/sbin -p
+    mkdir $ROOT/etc/smartdns/ -p
+    mkdir $ROOT/etc/default/ -p
+    mkdir $ROOT/lib/systemd/system/ -p
 
-dpkg -b $ROOT $CURR_DIR/smartdns.$VER.armhf.deb
+    sed -i "s/Version:.*/Version: $VER/" $ROOT/DEBIAN/control
+    sed -i "s/Architecture:.*/Architecture: $ARCH/" $ROOT/DEBIAN/control
+    chmod 0755 $ROOT/DEBIAN/prerm
 
-rm -fr $ROOT/
+    cp $SMARTDNS_DIR/etc/smartdns/smartdns.conf  $ROOT/etc/smartdns/
+    cp $SMARTDNS_DIR/etc/default/smartdns  $ROOT/etc/default/
+    cp $SMARTDNS_DIR/systemd/smartdns.service $ROOT/lib/systemd/system/ 
+    cp $SMARTDNS_DIR/src/smartdns $ROOT/usr/sbin
+    chmod +x $ROOT/usr/sbin/smartdns
+
+    dpkg -b $ROOT $OUTPUTDIR/smartdns.$VER.$ARCH.deb
+
+    rm -fr $ROOT/
+}
+
+main()
+{
+	OPTS=`getopt -o o:h --long arch:,ver: \
+		-n  "" -- "$@"`
+
+	if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
+
+	# Note the quotes around `$TEMP': they are essential!
+	eval set -- "$OPTS"
+
+	while true; do
+		case "$1" in
+		--arch)
+			ARCH="$2"
+			shift 2;;
+        --ver)
+            VER="$2"
+            shift 2;;
+		-o )
+			OUTPUTDIR="$2"
+			shift 2;;
+        -h | --help )
+			showhelp
+			return 0
+			shift ;;
+		-- ) shift; break ;;
+		* ) break ;;
+  		esac
+	done
+
+    if [ -z "$ARCH" ]; then
+        echo "please input arch."
+        return 1;
+    fi
+
+    if [ -z "$OUTPUTDIR" ]; then
+        OUTPUTDIR=$CURR_DIR;
+    fi
+
+    build
+}
+
+main $@
+exit $?

package/luci/control/control

@@ -0,0 +1,8 @@
+Package: luci-app-smartdns
+Version: git-18.201.27126-7bf0367-1
+Depends: libc, smartdns
+Source: feeds/luci/applications/luci-app-smartdns
+Section: luci
+Architecture: all
+Installed-Size: 1040
+Description:  A smartdns server module

package/luci/control/postinst

@@ -0,0 +1,5 @@
+#!/bin/sh
+[ "${IPKG_NO_SCRIPT}" = "1" ] && exit 0
+[ -x ${IPKG_INSTROOT}/lib/functions.sh ] || exit 0
+. ${IPKG_INSTROOT}/lib/functions.sh
+default_postinst $0 $@

package/luci/control/postinst-pkg

@@ -0,0 +1,4 @@
+[ -n "${IPKG_INSTROOT}" ] || {
+	(. /etc/uci-defaults/50_luci-smartdns) && rm -f /etc/uci-defaults/50_luci-smartdns
+	exit 0
+}

package/luci/control/prerm

@@ -0,0 +1,4 @@
+#!/bin/sh
+[ -x ${IPKG_INSTROOT}/lib/functions.sh ] || exit 0
+. ${IPKG_INSTROOT}/lib/functions.sh
+default_prerm $0 $@

package/luci/debian-binary

@@ -0,0 +1 @@
+2.0

package/luci/files/etc/uci-defaults/50_luci-smartdns

@@ -0,0 +1,11 @@
+#!/bin/sh
+
+uci -q batch <<-EOF >/dev/null
+	delete ucitrack.@smartdns[-1]
+	add ucitrack smartdns
+	set ucitrack.@smartdns[-1].init=smartdns
+	commit ucitrack
+EOF
+
+rm -f /tmp/luci-indexcache
+exit 0

package/luci/files/luci/controller/smartdns.lua

@@ -0,0 +1,14 @@
+-- Copyright 2018 Nick Peng (pymumu@gmail.com)
+
+module("luci.controller.smartdns", package.seeall)
+
+function index()
+	if not nixio.fs.access("/etc/config/smartdns") then
+		return
+	end
+
+	local page
+
+	page = entry({"admin", "services", "smartdns"}, cbi("smartdns"), _("SmartDNS"), 60)
+	page.dependent = true
+end

package/luci/files/luci/model/cbi/smartdns.lua

@@ -0,0 +1,120 @@
+-- Copyright 2018 Nick Peng (pymumu@gmail.com)
+
+require("nixio.fs")
+require("luci.http")
+
+m = Map("smartdns", translate("SmartDNS"),
+	translate("SmartDNS is a local dns server to find fastest ip."))
+
+if luci.sys.call("pidof smartdns >/dev/null") == 0 then
+	m = Map("smartdns", translate("SmartDNS"), "%s - %s" %{translate("SmartDNS"), translate("RUNNING")})
+else
+	m = Map("smartdns", translate("SmartDNS"), "%s - %s" %{translate("SmartDNS"), translate("NOT RUNNING")})
+end
+
+-- Basic
+s = m:section(TypedSection, "smartdns", translate("SmartDNS Server"))
+s.anonymous = true
+
+s:tab("settings", translate("Settings"))
+s:tab("help", translate("Technical Support"))
+
+---- Eanble
+o = s:taboption("settings", Flag, "enabled", translate("Enable"), translate("Enable or disable smartdns server"))
+o.rempty      = false
+
+---- Port
+o = s:taboption("settings", Value, "port", translate("Local Port"), translate("Smartdns local server port"))
+o.placeholder = 5353
+o.default     = 5353
+o.datatype    = "port"
+o.rempty      = false
+
+o = s:taboption("settings", Flag, "redirect", translate("redirect"), translate("redirect standard dns query from 53 to smartdns"))
+o.default     = true
+o.rempty      = false
+
+---- cache-size
+o = s:taboption("settings", Value, "cache_size", translate("Cache Size"), translate("DNS domain result cache size"))
+o.rempty      = true
+
+---- rr-ttl
+o = s:taboption("settings", Value, "rr_ttl", translate("Domain TTL"), translate("TTL for all domain result."))
+o.rempty      = true
+
+---- rr-ttl-min
+o = s:taboption("settings", Value, "rr_ttl_min", translate("Domain TTL Min"), translate("Minimum TTL for all domain result."))
+o.rempty      = true
+
+---- rr-ttl-max
+o = s:taboption("settings", Value, "rr_ttl_min", translate("Domain TTL Max"), translate("Maximum TTL for all domain result."))
+o.rempty      = true
+
+o = s:taboption("help", Button, "web")
+o.title = translate("SmartDNS official website")
+o.inputtitle = translate("open website")
+o.inputstyle = "apply"
+o.write = function()
+	luci.http.redirect("https://pymumu.github.io/")
+end
+
+o = s:taboption("help", Button, "Donate")
+o.title = translate("Donate to smartdns")
+o.inputtitle = translate("Donate")
+o.inputstyle = "apply"
+o.write = function()
+	luci.http.redirect("https://pymumu.github.io/smartdns")
+end
+
+-- Upstream servers
+s = m:section(TypedSection, "server", translate("Upstream Servers"), translate("Upstream Servers, support UDP, TCP protocol"))
+s.anonymous = true
+s.addremove = true
+s.template = "cbi/tblsection"
+
+---- name
+s:option(Value, "name", translate("Name"), translate("DNS Server name"))
+---- IP address
+o = s:option(Value, "ip", translate("ip"), translate("DNS Server ip"))
+o.datatype = "ipaddr"
+o.rmempty = false 
+---- port
+o = s:option(Value, "port", translate("port"), translate("DNS Server port"))
+o.placeholder = 53
+o.default     = 53
+o.datatype    = "port"
+o.rempty      = false
+---- type
+o = s:option(ListValue, "type", translate("type"), translate("DNS Server type"))
+o.placeholder = "udp"
+o:value("udp", translate("udp"))
+o:value("tcp", translate("tcp"))
+o.default     = "udp"
+o.rempty      = false
+
+-- Doman addresss
+s = m:section(TypedSection, "smartdns", translate("Domain Address"), 
+	translate("DNS Server name"))
+s.anonymous = true
+
+---- address
+addr = s:option(Value, "address",
+	translate(""), 
+	translate("Specify an IP address to return for any host in the given domains " ..
+	  "Queries in the domains are never forwarded and always replied to with the specified IP address which may be IPv4 or IPv6. " ..
+	  ""))
+
+addr.template = "cbi/tvalue"
+addr.rows = 20
+
+function addr.cfgvalue(self, section)
+	return nixio.fs.readfile("/etc/smartdns/address.conf")
+end
+
+function addr.write(self, section, value)
+	value = value:gsub("\r\n?", "\n")
+	nixio.fs.writefile("/etc/smartdns/address.conf", value)
+end
+
+return m
+

package/luci/make.sh

@@ -0,0 +1,88 @@
+#/bin/sh
+
+CURR_DIR=$(cd $(dirname $0);pwd)
+
+VER="`date +"1.%Y.%m.%d-%H%M"`"
+SMARTDNS_DIR=$CURR_DIR/../../
+
+showhelp()
+{
+	echo "Usage: make [OPTION]"
+	echo "Options:"
+	echo " -o               output directory."
+	echo " --arch           archtecture."
+    echo " --ver            version."
+	echo " -h               show this message."
+}
+
+build()
+{
+    ROOT=/tmp/luci-app-smartdns
+    rm -fr $ROOT
+
+    mkdir -p $ROOT
+    cp $CURR_DIR/* $ROOT/ -af
+    cd $ROOT/
+    mkdir $ROOT/root/usr/lib/lua/ -p
+    cp $ROOT/files/luci $ROOT/root/usr/lib/lua/ -af
+    cp $ROOT/files/etc $ROOT/root/ -af
+    
+    sed -i "s/^Architecture.*/Architecture: $ARCH/g" $ROOT/control/control
+    sed -i "s/Version:.*/Version: $VER/" $ROOT/control/control
+
+    cd $ROOT/control
+    chmod +x *
+    tar zcf ../control.tar.gz ./
+    cd $ROOT
+
+    tar zcf $ROOT/data.tar.gz -C root .
+    tar zcf $OUTPUTDIR/luci-app-smartdns.$VER.$ARCH.ipk control.tar.gz data.tar.gz debian-binary
+    rm -fr $ROOT/
+}
+
+main()
+{
+	OPTS=`getopt -o o:h --long arch:,ver: \
+		-n  "" -- "$@"`
+
+	if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
+
+	# Note the quotes around `$TEMP': they are essential!
+	eval set -- "$OPTS"
+
+	while true; do
+		case "$1" in
+		--arch)
+			ARCH="$2"
+			shift 2;;
+        --ver)
+            VER="$2"
+            shift 2;;
+		-o )
+			OUTPUTDIR="$2"
+			shift 2;;
+        -h | --help )
+			showhelp
+			return 0
+			shift ;;
+		-- ) shift; break ;;
+		* ) break ;;
+  		esac
+	done
+
+    if [ -z "$ARCH" ]; then
+        echo "please input arch."
+        return 1;
+    fi
+
+    if [ -z "$OUTPUTDIR" ]; then
+        OUTPUTDIR=$CURR_DIR;
+    fi
+
+    build
+}
+
+main $@
+exit $?
+
+

package/openwrt/control/conffiles

@@ -0,0 +1 @@
+/etc/config/smartdns

package/openwrt/control/control

@@ -0,0 +1,11 @@
+Package: smartdns
+Architecture: mipsbig
+Priority: optional
+Section: net
+Version: 2018.7.6-1921
+Maintainer: pymumu
+Source: http://127.0.0.1/
+Description: A smart dns server
+Suggests: 
+Conflicts: 
+Enabled: yes

package/openwrt/control/postinst

@@ -0,0 +1,15 @@
+#!/bin/sh
+
+chmod +x /usr/sbin/smartdns
+chmod +x /etc/init.d/smartdns
+
+[ "${IPKG_NO_SCRIPT}" = "1" ] && exit 0
+. ${IPKG_INSTROOT}/lib/functions.sh
+default_postinst $0 $@
+
+
+
+
+
+
+

package/openwrt/control/prerm

@@ -0,0 +1,4 @@
+#!/bin/sh
+. ${IPKG_INSTROOT}/lib/functions.sh
+default_prerm $0 $@
+

package/openwrt/debian-binary

@@ -0,0 +1 @@
+2.0

package/openwrt/files/etc/config/smartdns

@@ -0,0 +1,2 @@
+config 'smartdns'
+	option 'enabled' '0'

package/openwrt/files/etc/init.d/smartdns

@@ -0,0 +1,116 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2008-2011 OpenWrt.org
+
+START=50
+SERVICE_USE_PID=1
+SERVICE_WRITE_PID=1
+SERVICE_DAEMONIZE=1
+BASECONFIGFILE="/etc/smartdns/smartdns.conf"
+SMARTDNS_CONF="/var/etc/smartdns.conf"
+ADDRESS_CONF="/etc/smartdns/address.conf"
+SMARTDNS_CONF_TMP="${SMARTDNS_CONF}.tmp"
+
+set_iptable()
+{
+	IPS="`ifconfig | grep "inet addr" | grep -v ":127" | grep "Bcast" | awk '{print $2}' | awk -F: '{print $2}'`"
+	for IP in $IPS
+	do
+		iptables -t nat -A PREROUTING -p udp -d $IP --dport 53 -j REDIRECT --to-ports $SMARTDNS_PORT >/dev/null 2>&1
+	done
+
+}
+
+clear_iptable()
+{
+	IPS="`ifconfig | grep "inet addr" | grep -v ":127" | grep "Bcast" | awk '{print $2}' | awk -F: '{print $2}'`"
+	for IP in $IPS
+	do
+		iptables -t nat -D PREROUTING -p udp -d $IP --dport 53 -j REDIRECT --to-ports $SMARTDNS_PORT >/dev/null 2>&1
+	done
+	
+}
+
+conf_append()
+{
+	echo "$1 $2" >> $SMARTDNS_CONF_TMP
+}
+
+load_server()
+{
+	local section="$1"
+	config_get "port" "$section" "port" "53"
+	config_get "type" "$section" "type" "udp"
+	config_get "ip" "$section" "ip" ""
+
+	if [ -z "$port" ] || [ -z "$ip" ] || [ -z "$type" ]; then
+		return
+	fi
+
+	SERVER="server"
+	if [ "$type" = "tcp" ]; then
+		SERVER="server-tcp"
+	fi
+
+	if [ ! -z "`echo $ip | grep ":"`" ]; then
+		if [ -z "`echo $ip | grep "\["`" ]; then
+			ip="[$ip]"
+		fi
+	fi
+
+	conf_append "$SERVER" "$ip:$port"
+
+}
+
+start_service() {
+	local section="$1"
+	args=""
+	config_get "port" "$section" "port" "5353"
+	conf_append "bind" "[::]:$port"
+	SMARTDNS_PORT="$port"
+
+	config_get "cache_size" "$section" "cache_size" ""
+	if [ ! -z "$cache_size" ]; then
+		conf_append "cache-size" "$cache_size"
+	fi
+
+	config_get "rr_ttl" "$section" "rr_ttl" ""
+	if [ ! -z "$rr_ttl" ]; then
+		conf_append "rr-ttl" "$rr_ttl"
+	fi
+
+	config_get "rr_ttl_min" "$section" "rr_ttl_min" ""
+	if [ ! -z "$rr_ttl_min" ]; then
+		conf_append "rr-ttl-min" "$rr_ttl_min"
+	fi
+
+	config_get "rr_ttl_max" "$section" "rr_ttl_max" ""
+	if [ ! -z "$rr_ttl_max" ]; then
+		conf_append "rr-ttl-max" "$rr_ttl_max"
+	fi
+
+	clear_iptable
+	config_get_bool "redirect" "$section" "redirect" '0'
+	if [ "$redirect" -eq 1 ]; then
+		set_iptable
+	fi
+
+	config_foreach load_server "server"
+
+	echo "# address" >> $SMARTDNS_CONF_TMP
+	grep "^ *address" $ADDRESS_CONF >> $SMARTDNS_CONF_TMP
+
+	config_get_bool "enabled" "$section" "enabled" '0'
+	mv $SMARTDNS_CONF_TMP $SMARTDNS_CONF
+	[ "$enabled" -gt 0 ] || return 1
+	service_start /usr/sbin/smartdns $args -c $SMARTDNS_CONF
+}
+
+start() {
+	config_load "smartdns"
+	config_foreach start_service "smartdns"
+}
+
+stop() {
+	service_stop /usr/sbin/smartdns
+}
+

package/openwrt/make.sh

@@ -0,0 +1,99 @@
+#/bin/sh
+
+CURR_DIR=$(cd $(dirname $0);pwd)
+
+VER="`date +"1.%Y.%m.%d-%H%M"`"
+SMARTDNS_DIR=$CURR_DIR/../../
+SMARTDNS_BIN=$SMARTDNS_DIR/src/smartdns
+SMARTDNS_CONF=$SMARTDNS_DIR/etc/smartdns/smartdns.conf
+ADDRESS_CONF=$CURR_DIR/address.conf
+
+showhelp()
+{
+	echo "Usage: make [OPTION]"
+	echo "Options:"
+	echo " -o               output directory."
+	echo " --arch           archtecture."
+    echo " --ver            version."
+	echo " -h               show this message."
+}
+
+build()
+{
+    ROOT=/tmp/smartdns-openwrt
+    rm -fr $ROOT
+
+    mkdir -p $ROOT
+    cp $CURR_DIR/* $ROOT/ -af
+    cd $ROOT/
+    mkdir $ROOT/root/usr/sbin -p
+    mkdir $ROOT/root/etc/init.d -p
+    mkdir $ROOT/root/etc/smartdns/ -p
+
+    cp $SMARTDNS_CONF  $ROOT/root/etc/smartdns/
+    cp $ADDRESS_CONF $ROOT/root/etc/smartdns/
+    cp $CURR_DIR/files/etc $ROOT/root/ -af
+    cp $SMARTDNS_BIN $ROOT/root/usr/sbin
+
+    chmod +x $ROOT/root/etc/init.d/smartdns
+
+    sed -i "s/^Architecture.*/Architecture: $ARCH/g" $ROOT/control/control
+    sed -i "s/Version:.*/Version: $VER/" $ROOT/control/control
+    sed -i "s/^\(bind .*\):53/\1:5353/g" $ROOT/root/etc/smartdns/smartdns.conf
+
+    cd $ROOT/control
+    chmod +x *
+    tar zcf ../control.tar.gz ./
+    cd $ROOT
+
+    tar zcf $ROOT/data.tar.gz -C root .
+    tar zcf $OUTPUTDIR/smartdns.$VER.$ARCH.ipk control.tar.gz data.tar.gz debian-binary
+    rm -fr $ROOT/
+}
+
+main()
+{
+	OPTS=`getopt -o o:h --long arch:,ver: \
+		-n  "" -- "$@"`
+
+	if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
+
+	# Note the quotes around `$TEMP': they are essential!
+	eval set -- "$OPTS"
+
+	while true; do
+		case "$1" in
+		--arch)
+			ARCH="$2"
+			shift 2;;
+        --ver)
+            VER="$2"
+            shift 2;;
+		-o )
+			OUTPUTDIR="$2"
+			shift 2;;
+        -h | --help )
+			showhelp
+			return 0
+			shift ;;
+		-- ) shift; break ;;
+		* ) break ;;
+  		esac
+	done
+
+    if [ -z "$ARCH" ]; then
+        echo "please input arch."
+        return 1;
+    fi
+
+    if [ -z "$OUTPUTDIR" ]; then
+        OUTPUTDIR=$CURR_DIR;
+    fi
+
+    build
+}
+
+main $@
+exit $?
+
+

package/optware/make.sh

@@ -1,31 +1,92 @@
 #/bin/sh
 
-CURR_DIR=`pwd`
+CURR_DIR=$(cd $(dirname $0);pwd)
 VER="`date +"1.%Y.%m.%d-%H%M"`"
 SMARTDNS_DIR=$CURR_DIR/../../
 SMARTDNS_BIN=$SMARTDNS_DIR/src/smartdns
 SMARTDNS_CONF=$SMARTDNS_DIR/etc/smartdns/smartdns.conf
-ROOT=/tmp/smartdns-optware
-rm -fr $ROOT
 
-mkdir -p $ROOT
-cp * $ROOT/ -af
-cd $ROOT/
-mkdir $ROOT/opt/usr/sbin -p
-mkdir $ROOT/opt/etc/init.d -p
-mkdir $ROOT/opt/etc/smartdns/ -p
+showhelp()
+{
+	echo "Usage: make [OPTION]"
+	echo "Options:"
+	echo " -o               output directory."
+	echo " --arch           archtecture."
+    echo " --ver            version."
+	echo " -h               show this message."
+}
 
-cp $SMARTDNS_CONF  $ROOT/opt/etc/smartdns/
-cp S50smartdns $ROOT/opt/etc/init.d/
-cp $SMARTDNS_BIN $ROOT/opt/usr/sbin
+build()
+{
+    ROOT=/tmp/smartdns-optware
+    rm -fr $ROOT
 
-sed -i "s/^\(bind .*\):53/\1:535/g" $ROOT/opt/etc/smartdns/smartdns.conf
+    mkdir -p $ROOT
+    cp $CURR_DIR/* $ROOT/ -af
+    cd $ROOT/
+    mkdir $ROOT/opt/usr/sbin -p
+    mkdir $ROOT/opt/etc/init.d -p
+    mkdir $ROOT/opt/etc/smartdns/ -p
 
-cd $ROOT/control
-chmod +x *
-tar zcf ../control.tar.gz ./
-cd $ROOT
+    cp $SMARTDNS_CONF  $ROOT/opt/etc/smartdns/
+    cp $CURR_DIR/S50smartdns $ROOT/opt/etc/init.d/
+    cp $SMARTDNS_BIN $ROOT/opt/usr/sbin
 
-tar zcf data.tar.gz opt
-tar zcf $CURR_DIR/smartdns.$VER.mipsbig.ipk control.tar.gz data.tar.gz debian-binary
-rm -fr $ROOT/
+    sed -i "s/^\(bind .*\):53/\1:535/g" $ROOT/opt/etc/smartdns/smartdns.conf
+    sed -i "s/^Architecture.*/Architecture: $ARCH/g" $ROOT/control/control
+    sed -i "s/Version:.*/Version: $VER/" $ROOT/control/control
+
+    cd $ROOT/control
+    chmod +x *
+    tar zcf ../control.tar.gz ./
+    cd $ROOT
+
+    tar zcf data.tar.gz opt
+    tar zcf $OUTPUTDIR/smartdns.$VER.$ARCH.ipk control.tar.gz data.tar.gz debian-binary
+    rm -fr $ROOT/
+}
+
+main()
+{
+	OPTS=`getopt -o o:h --long arch:,ver: \
+		-n  "" -- "$@"`
+
+	if [ $? != 0 ] ; then echo "Terminating..." >&2 ; exit 1 ; fi
+
+	# Note the quotes around `$TEMP': they are essential!
+	eval set -- "$OPTS"
+
+	while true; do
+		case "$1" in
+		--arch)
+			ARCH="$2"
+			shift 2;;
+        --ver)
+            VER="$2"
+            shift 2;;
+		-o )
+			OUTPUTDIR="$2"
+			shift 2;;
+        -h | --help )
+			showhelp
+			return 0
+			shift ;;
+		-- ) shift; break ;;
+		* ) break ;;
+  		esac
+	done
+
+    if [ -z "$ARCH" ]; then
+        echo "please input arch."
+        return 1;
+    fi
+
+    if [ -z "$OUTPUTDIR" ]; then
+        OUTPUTDIR=$CURR_DIR;
+    fi
+
+    build
+}
+
+main $@
+exit $?

src/dns_cache.h

@@ -6,6 +6,7 @@
 #include "hash.h"
 #include "list.h"
 #include "atomic.h"
+#include <time.h>
 
 struct dns_cache {
 	struct hlist_node node;

src/tlog.c

@@ -33,6 +33,7 @@
 #define TLOG_TMP_LEN 128
 #define TLOG_LOG_SIZE (1024 * 1024 * 50)
 #define TLOG_LOG_COUNT 32
+#define TLOG_LOG_NAME_LEN 128
 
 struct oldest_log {
     char name[TLOG_TMP_LEN];
@@ -59,7 +60,7 @@ struct tlog {
 
     off_t filesize;
     char logdir[PATH_MAX];
-    char logname[PATH_MAX];
+    char logname[TLOG_LOG_NAME_LEN];
     int logsize;
     int logcount;
     int block;
@@ -382,7 +383,7 @@ int tlog_ext(tlog_level level, const char *file, int line, const char *func, voi
 
 static int _tlog_rename_logfile(const char *gzip_file)
 {
-    char archive_file[PATH_MAX];
+    char archive_file[PATH_MAX * 2];
     struct tlog_time logtime;
     int i = 0;
 
@@ -460,7 +461,7 @@ static int _tlog_count_log_callback(const char *path, struct dirent *entry, void
 static int _tlog_get_oldest_callback(const char *path, struct dirent *entry, void *userptr)
 {
     struct stat sb;
-    char filename[PATH_MAX];
+    char filename[PATH_MAX * 2];
     struct oldest_log *oldestlog = userptr;
 
     /* if not a gz file, skip */
@@ -500,7 +501,7 @@ static int _tlog_remove_oldestlog(void)
         return -1;
     }
 
-    char filename[PATH_MAX];
+    char filename[PATH_MAX * 2];
     snprintf(filename, sizeof(filename), "%s/%s", tlog.logdir, oldestlog.name);
 
     /* delete */
@@ -530,7 +531,7 @@ static int _tlog_remove_oldlog(void)
 
 static void _tlog_log_unlock(void)
 {
-    char lock_file[PATH_MAX];
+    char lock_file[PATH_MAX * 2];
     if (tlog.fd_lock <= 0) {
         return;
     }
@@ -543,7 +544,7 @@ static void _tlog_log_unlock(void)
 
 static int _tlog_log_lock(void)
 {
-    char lock_file[PATH_MAX];
+    char lock_file[PATH_MAX * 2];
     int fd;
 
     if (tlog.multi_log == 0) {
@@ -586,7 +587,7 @@ static void _tlog_wait_pid(int wait_hang)
 
     /* gzip process exited */
     tlog.zip_pid = -1;
-    char gzip_file[PATH_MAX];
+    char gzip_file[PATH_MAX * 2];
 
     /* rename ziped file */
     snprintf(gzip_file, sizeof(gzip_file), "%s/%s.pending.gz", tlog.logdir, tlog.logname);
@@ -646,10 +647,10 @@ errout:
 
 static int _tlog_archive_log(void)
 {
-    char gzip_file[PATH_MAX];
-    char gzip_cmd[PATH_MAX];
-    char log_file[PATH_MAX];
-    char pending_file[PATH_MAX];
+    char gzip_file[PATH_MAX * 2];
+    char gzip_cmd[PATH_MAX * 2];
+    char log_file[PATH_MAX * 2];
+    char pending_file[PATH_MAX * 2];
 
     snprintf(gzip_file, sizeof(gzip_file), "%s/%s.pending.gz", tlog.logdir, tlog.logname);
     snprintf(pending_file, sizeof(pending_file), "%s/%s.pending", tlog.logdir, tlog.logname);
@@ -718,7 +719,7 @@ static int _tlog_write_log(char *buff, int bufflen)
 
     if (tlog.fd <= 0) {
         /* open a new log file to write */
-        char logfile[PATH_MAX];
+        char logfile[PATH_MAX * 2];
         if (_tlog_mkdir(tlog.logdir) != 0) {
             fprintf(stderr, "create log dir %s failed.\n", tlog.logdir);
             return -1;