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openwrt-xburst/package/dnsmasq/files/dnsmasq.init
nbd 676c017ecf large init script cleanup and merge of whiterussian changes, new dnsmasq config handling
git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@3588 3c298f89-4303-0410-b956-a3cf2f4a3e73
2006-04-05 02:09:22 +00:00

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#!/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 ${dhcp_lease:-12h}"
}
# ignore requests from wan interface
[ -z "$wan_proto" -o "$wan_proto" = "none" ] || echo "@define wan_ifname $wan_ifname"
cat /etc/dnsmasq.conf
) | awk -f /usr/lib/parse-config.awk | dnsmasq -C /proc/self/fd/0