#!/bin/sh [ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1 . /etc/functions.sh include /lib/network RESOLV_CONF="/tmp/resolv.conf.auto" hotplug_event() { scan_interfaces for ifc in $interfaces; do config_get ifname $ifc ifname [ "$ifname" = "$interface" ] || continue config_get proto $ifc proto [ "$proto" = "dhcp" ] || continue [ ifup = "$1" ] && { config_get userdns "$ifc" dns [ -n "$userdns" ] && { for i in $userdns; do echo "custom dns $i" echo "nameserver $i" >> "${RESOLV_CONF}.tmp" done dns="$userdns" } uci_set_state network "$ifc" ipaddr "$ip" uci_set_state network "$ifc" netmask "${subnet:-255.255.255.0}" uci_set_state network "$ifc" dnsdomain "$domain" uci_set_state network "$ifc" dns "$dns" uci_set_state network "$ifc" gateway "$router" } env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface done } case "$1" in deconfig) ifconfig $interface 0.0.0.0 hotplug_event ifdown ;; renew|bound) ifconfig $interface $ip \ netmask ${subnet:-255.255.255.0} \ broadcast ${broadcast:-+} [ -n "$router" ] && { for i in $router ; do echo "adding router $i" route add default gw $i dev $interface valid="$valid|$i" done echo "deleting old routes" $(route -n | awk '/^0.0.0.0\W{9}('$valid')\W/ {next} /^0.0.0.0/ {print "route del -net "$1" gw "$2";"}') } [ -n "$dns" ] && \ echo -n > "${RESOLV_CONF}.tmp" if [ "$1" = "renew" ]; then hotplug_event update else hotplug_event ifup fi [ -n "$dns" ] && { [ -s "${RESOLV_CONF}.tmp" ] || { for i in $dns ; do echo "adding dns $i" echo "nameserver $i" >> "${RESOLV_CONF}.tmp" done } ${domain:+echo search $domain} >> "${RESOLV_CONF}.tmp" mv "${RESOLV_CONF}.tmp" "$RESOLV_CONF" } # user rules [ -f /etc/udhcpc.user ] && . /etc/udhcpc.user ;; esac exit 0