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git://projects.qi-hardware.com/openwrt-xburst.git
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5ad62fbdd3
/etc/resolv.conf links to /tmp/resolv.conf /tmp/resolv.conf links to /tmp/resolv.conf.auto by default (which is where the ISPs nameserver is in) When dnsmasq starts, it replaces /tmp/resolv.conf with a file pointing to 127.0.0.1 git-svn-id: svn://svn.openwrt.org/openwrt/trunk@6043 3c298f89-4303-0410-b956-a3cf2f4a3e73
65 lines
1.8 KiB
Bash
65 lines
1.8 KiB
Bash
#!/bin/sh /etc/rc.common
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# Copyright (C) 2006 OpenWrt.org
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START=60
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start() {
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include /lib/network
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scan_interfaces
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# The following is to automatically configure the DHCP settings
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# based on config settings. Feel free to replace all this crap
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# with a simple "dnsmasq" and manage everything via the
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# /etc/dnsmasq.conf config file
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[ -f /etc/dnsmasq.conf ] || exit
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args=""
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iface=lan
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config_get ifname "$iface" ifname
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config_get proto "$iface" proto
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[ "$proto" = static ] && dhcp_enable="${dhcp_enable:-1}"
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dhcp_start="${dhcp_start:-100}"
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dhcp_num="${dhcp_num:-50}"
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dhcp_lease="${dhcp_lease:-12h}"
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# if dhcp_enable is unset and there is a dhcp server on the network already, default to dhcp_enable=0
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[ -z "$dhcp_enable" ] && udhcpc -n -q -R -s /bin/true -i $ifname >&- && dhcp_enable="${dhcp_enable:-0}"
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# dhcp_enable=0 disables the dhcp server
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(
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[ -z "$dhcp_enable" -o "$dhcp_enable" -eq 1 ] && {
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# no existing DHCP server?
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# calculate settings
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config_get ipaddr "$iface" ipaddr
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config_get netmask "$iface" netmask
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eval $(ipcalc $ipaddr $netmask ${dhcp_start:-100} ${dhcp_num:-150})
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# and pass the args via config parser defines
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echo "${dhcp_enable:+@define dhcp_enable 1}"
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echo "@define netmask $NETMASK"
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echo "@define start $START"
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echo "@define end $END"
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echo "@define lease ${dhcp_lease:-12h}"
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}
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# ignore requests from wan interface
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config_get wan_proto wan proto
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config_get wan_ifname wan ifname
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[ -z "$wan_proto" -o "$wan_proto" = "none" ] || echo "@define wan_ifname $wan_ifname"
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cat /etc/dnsmasq.conf
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) | awk -f /lib/config/template.awk | dnsmasq -C /proc/self/fd/0 && {
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rm -f /tmp/resolv.conf
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cat > /tmp/resolv.conf <<EOF
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nameserver 127.0.0.1
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search lan
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EOF
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}
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}
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stop() {
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killall dnsmasq
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}
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