#!/bin/sh setup_eth() { for part in $(nvram get unused_ifnames); do [ "$part" = "$INTERFACE" ] && exit 0 done ifconfig "$INTERFACE" up 2>&- >&- } find_name() { pppoa_ifname="atm0" # hack for ppp over atm, which has no ${proto}_ifname interfaces="lan wan wifi $(nvram get ifnames)" for ifname in $interfaces; do IFTYPE="${ifname}" IFPROTO="$(nvram get ${IFTYPE}_proto)" IFACE="$(nvram get ${IFTYPE}_ifname)" case "$IFPROTO" in ""|none);; static|dhcp) [ "${IFACE}" = "$INTERFACE" ] && return 0 [ "${IFACE%%[0-9]*}" = "br" ] && { for part in $(nvram get ${IFTYPE}_ifnames); do [ "$part" = "$INTERFACE" ] && return 0 done } ;; *) [ "$(nvram get ${IFTYPE}_device)" = "$INTERFACE" \ -a -x /sbin/ifup.${IFPROTO} ] && return 0 ;; esac done IFACE="" IFTYPE="" IFPROTO="" return 255 } do_ifup() { if="$3" if_proto="$(nvram get ${2}_proto)" pidfile=/var/run/${if}.pid [ -f $pidfile ] && $DEBUG kill $(cat $pidfile) case "$1" in static) ip=$(nvram get ${2}_ipaddr) ip6=$(nvram get ${2}_ip6addr) netmask=$(nvram get ${2}_netmask) gateway=$(nvram get ${2}_gateway) $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up [ -n "$ip6" ] && $DEBUG ifconfig $if add $ip6 ${gateway:+$DEBUG route add default gw $gateway} [ -f /tmp/resolv.conf ] || { debug "# --- creating /tmp/resolv.conf ---" for dns in $(nvram get ${2}_dns); do echo "nameserver $dns" >> /tmp/resolv.conf done } env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" & ;; dhcp) DHCP_IP=$(nvram get ${2}_ipaddr) DHCP_NETMASK=$(nvram get ${2}_netmask) $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up DHCP_ARGS="-i $if ${DHCP_IP:+-r $DHCP_IP} -b -p $pidfile" DHCP_HOSTNAME=$(nvram get ${2}_hostname) DHCP_HOSTNAME=${DHCP_HOSTNAME%%.*} [ -z $DHCP_HOSTNAME ] || DHCP_ARGS="$DHCP_ARGS -H $DHCP_HOSTNAME" [ "$if_proto" = "pptp" ] && DHCP_ARGS="$DHCP_ARGS -n -q" || DHCP_ARGS="$DHCP_ARGS -R &" oldpid=$(cat $pidfile) ${DEBUG:-eval} "udhcpc $DHCP_ARGS" pidof udhcpc | grep "$oldpid" >&- 2>&- && { sleep 1 kill -9 $oldpid } # hotplug events are handled by /usr/share/udhcpc/default.script ;; *) if [ -x "/sbin/ifup.$1" ]; then ( $DEBUG . /sbin/ifup.$1 ${2} $3 ) fi ;; esac } do_register() { case "${INTERFACE%%[0-9]*}" in eth) setup_eth;; esac [ -z "$IFTYPE" -o -z "$IFPROTO" ] && { find_name || { case "${INTERFACE%%[0-9]*}" in wds) for tmp in lan wifi; do [ -z "$IFPROTO" ] && [ "$(nvram get ${tmp}_ifname)" = "br0" ] && { IFPROTO="$(nvram get ${tmp}_proto)" IFTYPE="${tmp}" } done [ -z "$IFPROTO" ] && return 0 ;; atm) for tmp in lan wan wifi $(nvram get ifnames); do [ "$(nvram get ${tmp}_proto)" = "pppoa" ] && { do_ifup "pppoa" "$tmp" "$INTERFACE" return 0 } done ;; *) return 0 ;; esac } } case "${INTERFACE%%[0-9]*}" in ppp|atm);; *) mac=$(nvram get ${IFTYPE}_hwaddr) ${mac:+$DEBUG ifconfig $INTERFACE down hw ether $mac} ;; esac if="$(nvram get ${IFTYPE}_ifname)" if [ "${if%%[0-9]}" = "br" ]; then if_valid "$INTERFACE" && { ifconfig "$if" 2>&- >&- || { stp=$(nvram get ${IFTYPE}_stp) $DEBUG brctl addbr "$if" $DEBUG brctl setfd "$if" 0 $DEBUG brctl stp "$if" "${stp:-0}" } if [ "$INTERFACE" != "$if" ]; then $DEBUG ifconfig "$INTERFACE" 0.0.0.0 up brctl addif "$if" "$INTERFACE" else do_ifup "$IFPROTO" "$IFTYPE" "$if" fi } else [ "${INTERFACE%%[0-9]*}" = "ppp" ] || do_ifup "$IFPROTO" "$IFTYPE" "$if" fi } do_unregister() { [ -z "$IFTYPE" -o -z "$IFPROTO" ] && find_name [ -z "$IFTYPE" -o -z "$IFPROTO" ] && return 0 [ "${IFACE%%[0-9]*}" = "br" ] && { if [ "$INTERFACE" != "$IFACE" ]; then brctl delif "$IFACE" "$INTERFACE" 2>&- >&- else brctl delbr "$IFACE" 2>&- >&- fi } case "$IFPROTO" in pppoe|pppoa|pptp) killall pppd 2>&- >&- ;; dhcp) [ -f /var/run/${INTERFACE}.pid ] && kill "$(cat /var/run/${INTERFACE}.pid)" 2>&- >&- ;; esac [ "${INTERFACE%%[0-9]*}" = "atm" ] || ifconfig "$INTERFACE" 0.0.0.0 down 2>&- } case "$ACTION" in add|register) do_register;; remove|unregister) do_unregister;; esac