X-Git-Url: http://git.rohieb.name/openwrt.git/blobdiff_plain/676c017ecfced2e37aeec176f8aa6b9df90024f3..12614f928a606f09401eb6fca120294ad4a799ba:/package/dnsmasq/files/dnsmasq.init

diff --git a/package/dnsmasq/files/dnsmasq.init b/package/dnsmasq/files/dnsmasq.init
index 17ef43c3d..ec595afce 100644
--- a/package/dnsmasq/files/dnsmasq.init
+++ b/package/dnsmasq/files/dnsmasq.init
@@ -1,45 +1,252 @@
-#!/bin/sh
-. /etc/config/network
-
-# The following is to automatically configure the DHCP settings
-# based on config settings. Feel free to replace all this crap
-# with a simple "dnsmasq" and manage everything via the
-# /etc/dnsmasq.conf config file
-
-[ -f /etc/dnsmasq.conf ] || exit
-
-args=""
-iface=lan
-eval "ifname=\${${iface}_ifname}"
-
-dhcp_enable="${dhcp_enable:-1}"
-dhcp_start="${dhcp_start:-100}"
-dhcp_num="${dhcp_num:-50}"
-dhcp_lease="${dhcp_lease:-12h}"
-
-# if dhcp_enable is unset and there is a dhcp server on the network already, default to dhcp_enable=0
-[ -z "$dhcp_enable" ] && udhcpc -n -q -R -s /bin/true -i $ifname >&- && dhcp_enable="${dhcp_enable:-0}"
-
-# dhcp_enable=0 disables the dhcp server
-(
-	[ -z "$dhcp_enable" -o "$dhcp_enable" -eq 1 ] && {
-		# no existing DHCP server?
-
-		# calculate settings
-		eval "ipaddr=\${${iface}_ipaddr}"
-		eval "netmask=\${${iface}_netmask}"
-		eval $(ipcalc $ipaddr $netmask ${dhcp_start:-100} ${dhcp_num:-150})
-		
-		# and pass the args via config parser defines
-		echo "@define dhcp_enable 1"
-		echo "@define netmask $NETMASK"
-		echo "@define start $START"
-		echo "@define end $END"
-		echo "@define lease ${dhcp_lease:-12h}"
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2007 OpenWrt.org
+
+START=60
+DNS_SERVERS=""
+
+dhcp_calc() {
+	local ip="$1"
+	local res=0
+
+	while [ -n "$ip" ]; do
+		part="${ip%%.*}"
+		res="$(($res * 256))"
+		res="$(($res + $part))"
+		[ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip=
+	done
+	echo "$res"
+}
+
+append_bool() {
+	local section="$1"
+	local option="$2"
+	local value="$3"
+	local _loctmp
+	config_get_bool _loctmp "$section" "$option"
+	[ "$_loctmp" -gt 0 ] && append args "$3"
+}
+
+append_parm() {
+	local section="$1"
+	local option="$2"
+	local switch="$3"
+	local _loctmp
+	config_get _loctmp "$section" "$option"
+	[ -z "$_loctmp" ] && return 0
+	append args "$switch $_loctmp"
+}
+
+dnsmasq() {
+	local cfg="$1"
+	append_bool "$cfg" authoritative "-K"
+	append_bool "$cfg" nodaemon "-d"
+	append_bool "$cfg" domainneeded "-D"
+	append_bool "$cfg" filterwin2k "-f"
+	append_bool "$cfg" nohosts "-h"
+	append_bool "$cfg" nonegcache "-N"
+	append_bool "$cfg" strictorder "-o"
+	append_bool "$cfg" logqueries "-q"
+	append_bool "$cfg" noresolv "-R"
+	append_bool "$cfg" localise_queries "-y"
+	append_bool "$cfg" readethers "-Z"
+	append_bool "$cfg" dbus "-l"
+
+	append_parm "$cfg" dnsforwardmax "-0"
+	append_parm "$cfg" port "-p"
+	append_parm "$cfg" ednspacket_max "-P"
+	append_parm "$cfg" dhcpleasemax "-X"
+
+	config_get addnhosts "$cfg" addnhosts
+	config_get interface "$cfg" interface
+	config_get exceptinterface "$cfg" exceptinterface
+	config_get queryport "$cfg" queryport
+	config_get domain "$cfg" domain
+}
+
+dhcp_subscrid_add() {
+	local cfg="$1"
+
+	config_get name "$cfg" name
+	[ -n "$name" ] || return 0
+
+	config_get subscriberid "$cfg" subscriberid
+	[ -n "$subscriberid" ] || return 0
+
+	append args "--dhcp-subscrid=$name,$subscriberid"
+
+	dhcp_option_add "$cfg" "$name"
+}
+
+dhcp_remoteid_add() {
+	local cfg="$1"
+
+	config_get name "$cfg" name
+	[ -n "$name" ] || return 0
+
+	config_get remoteid "$cfg" remoteid
+	[ -n "$remoteid" ] || return 0
+
+	append args "--dhcp-remoteid=$name,$remoteid"
+
+	dhcp_option_add "$cfg" "$name"
+}
+
+dhcp_circuitid_add() {
+	local cfg="$1"
+
+	config_get name "$cfg" name
+	[ -n "$name" ] || return 0
+
+	config_get circuitid "$cfg" circuitid
+	[ -n "$circuitid" ] || return 0
+
+	append args "--dhcp-circuitid=$name,$circuitid"
+
+	dhcp_option_add "$cfg" "$name"
+}
+
+dhcp_userclass_add() {
+	local cfg="$1"
+
+	config_get name "$cfg" name
+	[ -n "$name" ] || return 0
+
+	config_get userclass "$cfg" userclass
+	[ -n "$userclass" ] || return 0
+
+	append args "--dhcp-userclass=$name,$userclass"
+
+	dhcp_option_add "$cfg" "$name"
+}
+
+dhcp_vendorclass_add() {
+	local cfg="$1"
+
+	config_get name "$cfg" name
+	[ -n "$name" ] || return 0
+
+	config_get vendorclass "$cfg" vendorclass
+	[ -n "$vendorclass" ] || return 0
+
+	append args "--dhcp-vendorclass=$name,$vendorclass"
+
+	dhcp_option_add "$cfg" "$name"
+}
+
+dhcp_host_add() {
+	local cfg="$1"
+
+	config_get name "$cfg" name
+	[ -n "$name" ] || return 0
+
+	config_get mac "$cfg" mac
+	[ -n "$mac" ] || return 0
+
+
+	append args "--dhcp-host=$mac,$ip"
+
+	dhcp_option_add "$cfg" "$name"
+}
+
+dhcp_mac_add() {
+	local cfg="$1"
+
+	config_get name "$cfg" name
+	[ -n "$name" ] || return 0
+
+	config_get mac "$cfg" mac
+	[ -n "$mac" ] || return 0
+
+	append args "--dhcp-mac=$name,$mac"
+
+	dhcp_option_add "$cfg" "$name"
+}
+
+dhcp_add() {
+	local cfg="$1"
+	config_get net "$cfg" interface
+	[ -n "$net" ] || return 0
+
+	config_get name "$cfg" name
+	[ -n "$name" ] || name="$net"
+
+	config_get ifname "$net" ifname
+	[ -n "$ifname" ] || return 0
+
+	config_get dnsserver "$net" dns
+	[ -n "$dnsserver" ] && {
+		DNS_SERVERS="$DNS_SERVERS $dnsserver"
+	}
+
+	append_bool "$cfg" ignore "-I $ifname"
+
+	config_get proto "$net" proto
+	[ static = "$proto" ] || return 0
+
+	config_get ipaddr "$net" ipaddr
+	config_get netmask "$net" netmask
+
+	#check for an already active dhcp server on the interface, unless 'force' is set
+	config_get_bool force "$cfg" force 0
+	[ "$force" -gt 0 ] || {
+		udhcpc -n -q -R -s /bin/true -t 1 -i $ifname >&- && return 0
 	}
 
-	# ignore requests from wan interface
-	[ -z "$wan_proto" -o "$wan_proto" = "none" ] || echo "@define wan_ifname $wan_ifname"
+	config_get start "$cfg" start
+	config_get limit "$cfg" limit
+	config_get leasetime "$cfg" leasetime
+	config_get options "$cfg" options
+
+	leasetime="${leasetime:-12h}"
+	start="$(dhcp_calc "${start:-100}")"
+	limit="$((${limit:-150} + 1))"
+	eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"
+	append args "--dhcp-range=$name,$START,$END,$NETMASK,$leasetime${options:+ $options}"
+
+	dhcp_option_add "$cfg" "$name"
+}
+
+dhcp_option_add() {
+	local cfg="$1"
+	local name="$2"
+
+	for count in $(seq 0 100); do
+		eval current_value=\$CONFIG_"$cfg"_dhcp"$count"
+		if [ -z "$current_value" ]; then
+			let "count-=1"
+			break
+		fi
+		append args "-O $name","$current_value"
+	done
+
+}
+
+start() {
+	include /lib/network
+	scan_interfaces
+	config_load /var/state/network
+	config_load dhcp
+
+	args=""
+	config_foreach dnsmasq dnsmasq
+	config_foreach dhcp_host_add host
+	config_foreach dhcp_mac_add mac
+	config_foreach dhcp_vendorclass_add vendorclass
+	config_foreach dhcp_userclass_add userclass
+	config_foreach dhcp_circuitid_add circuitid
+	config_foreach dhcp_remoteid_add remoteid
+	config_foreach dhcp_subscrid_add subscrid
+	config_foreach dhcp_add dhcp
+
+	/usr/sbin/dnsmasq $args && {
+		rm -f /tmp/resolv.conf
+		DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
+		for DNS_SERVER in $DNS_SERVERS ; do
+			echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
+		done
+	}
+}
 
-	cat /etc/dnsmasq.conf
-) | awk -f /usr/lib/parse-config.awk | dnsmasq -C /proc/self/fd/0
+stop() {
+	killall dnsmasq
+}