X-Git-Url: https://git.rohieb.name/openwrt.git/blobdiff_plain/676c017ecfced2e37aeec176f8aa6b9df90024f3..ccf3bdc4a6309f23aa80e643b4b4c734ab4100ca:/package/dnsmasq/files/dnsmasq.init?ds=inline diff --git a/package/dnsmasq/files/dnsmasq.init b/package/dnsmasq/files/dnsmasq.init index 17ef43c3d..870414900 100644 --- a/package/dnsmasq/files/dnsmasq.init +++ b/package/dnsmasq/files/dnsmasq.init @@ -1,45 +1,292 @@ -#!/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 "$value" +} + +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" +} + +append_server() { + append args "-S $1" +} + +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 "$cfg" dbus "-1" + append_bool "$cfg" boguspriv "-b" + append_bool "$cfg" expandhosts "-E" + append_bool "$cfg" enable_tftp "--enable-tftp" + + append_parm "$cfg" dnsforwardmax "-0" + append_parm "$cfg" port "-p" + append_parm "$cfg" ednspacket_max "-P" + append_parm "$cfg" dhcpleasemax "-X" + append_parm "$cfg" "addnhosts" "-H" + append_parm "$cfg" "queryport" "-Q" + append_parm "$cfg" "domain" "-s" + append_parm "$cfg" "local" "-S" + config_list_foreach "$cfg" "server" append_server + append_parm "$cfg" "leasefile" "-l" + append_parm "$cfg" "resolvfile" "-r" + append_parm "$cfg" "tftp_root" "--tftp-root" + append_parm "$cfg" "dhcp_boot" "--dhcp-boot" + + config_get leasefile $cfg leasefile + [ -e "$leasefile" ] || touch "$leasefile" + config_get_bool cachelocal "$cfg" cachelocal 1 +} + +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 "$mac" ] || return 0 + + config_get ip "$cfg" ip + [ -n "$ip" ] || return 0 + + append args "--dhcp-host=$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_boot_add() { + local cfg="$1" + + config_get name "$cfg" name + + config_get filename "$cfg" filename + [ -n "$filename" ] || return 0 + + config_get servername "$cfg" servername + [ -n "$servername" ] || return 0 + + config_get serveraddress "$cfg" serveraddress + [ -n "$serveraddress" ] || return 0 + + append args "--dhcp-boot=${name:+net:$name,}$filename,$servername,$serveraddress" + + dhcp_option_add "$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 "$net" dns + [ "$cachelocal" = "0" -a -n "$dnsserver" ] && { + DNS_SERVERS="$DNS_SERVERS $dnsserver" } - # ignore requests from wan interface - [ -z "$wan_proto" -o "$wan_proto" = "none" ] || echo "@define wan_ifname $wan_ifname" + append_bool "$cfg" ignore "-2 $ifname" + + config_get proto "$net" proto + [ static = "$proto" ] || return 0 + + config_get ipaddr "$net" ipaddr + config_get netmask "$cfg" netmask + [ -n "$netmask" ] || 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 -s /bin/true -t 1 -i $ifname >&- && return 0 + } + + config_get start "$cfg" start + config_get limit "$cfg" limit + config_get leasetime "$cfg" leasetime + config_get options "$cfg" options + config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1 + + leasetime="${leasetime:-12h}" + start="$(dhcp_calc "${start:-100}")" + limit="$((${limit:-150} + 1))" + eval "$(ipcalc.sh $ipaddr $netmask $start $limit)" + if [ "$dynamicdhcp" = "0" ]; then END="static"; fi + append args "--dhcp-range=$name,$START,$END,$NETMASK,$leasetime${options:+ $options}" - cat /etc/dnsmasq.conf -) | awk -f /usr/lib/parse-config.awk | dnsmasq -C /proc/self/fd/0 + dhcp_option_add "$cfg" "$name" +} + +dhcp_option_add() { + local cfg="$1" + local name="$2" + + config_get dhcp_option "$cfg" dhcp_option + for o in $dhcp_option; do + append args "-O $name","$o" + done + +} + +start() { + include /lib/network + scan_interfaces + config_load dhcp + + args="" + config_foreach dnsmasq dnsmasq + config_foreach dhcp_host_add host + config_foreach dhcp_boot_add boot + 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 + } +} + +stop() { + [ -f /tmp/resolv.conf ] && { + rm -f /tmp/resolv.conf + ln -s /tmp/resolv.conf.auto /tmp/resolv.conf + } + killall dnsmasq + return 0 +}