#!/bin/sh find_name() { for ifname in lan wan wifi ${ifnames}; do IFTYPE="${ifname}" eval "IFPROTO=\"\${${IFTYPE}_proto}\"" eval "IFACE=\"\${${IFTYPE}_ifname}\"" case "$IFPROTO" in ""|none);; static|dhcp) [ "${IFACE}" = "$INTERFACE" ] && return 0 [ "${IFACE%%[0-9]*}" = "br" ] && { eval "ifs=\"\${${IFTYPE}_ifnames}\"" for part in $ifs; do [ "$part" = "$INTERFACE" ] && return 0 done } ;; pppoa) [ "$INTERFACE" = "atm0" \ -a -x /sbin/ifup.${IFPROTO} ] && return 0 ;; *) eval "device=\"\${${IFTYPE}_device}\"" [ "$device" = "$INTERFACE" \ -a -x /sbin/ifup.${IFPROTO} ] && return 0 ;; esac done IFACE="" IFTYPE="" IFPROTO="" return 255 } do_ifup() { if="$3" eval "if_proto=\"\${${2}_proto}\"" pidfile=/var/run/${if}.pid [ -f $pidfile ] && $DEBUG kill $(cat $pidfile) case "$1" in static) eval "ip=\"\${${2}_ipaddr}\"" eval "ip6=\"\${${2}_ip6addr}\"" eval "netmask=\"\${${2}_netmask}\"" eval "gateway=\"\${${2}_gateway}\"" eval "dns=\"\${${2}_dns}\"" $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 ns in $dns; do echo "nameserver $ns" >> /tmp/resolv.conf done } env -i ACTION="ifup" INTERFACE="${2}" PROTO=static /sbin/hotplug "iface" & ;; dhcp) eval "ip=\"\${${2}_ipaddr}\"" eval "netmask=\"\${${2}_netmask}\"" eval "hostname=\"\${${2}_hostname}\"" $DEBUG ifconfig $if $ip ${netmask:+netmask $netmask} broadcast + up args="-i $if ${ip:+-r $ip} -b -p $pidfile" hostname="${hostname%%.*}" args="$args${hostname:+ -H $hostname}" [ "$if_proto" = "pptp" ] && args="$args -n -q" || args="$args -R &" ${DEBUG:-eval} "udhcpc $args" # hotplug events are handled by /usr/share/udhcpc/default.script ;; *) if [ -x "/sbin/ifup.$1" ]; then ( $DEBUG . /sbin/ifup.$1 ${2} $3 ) fi ;; esac } do_register() { [ -z "$IFTYPE" -o -z "$IFPROTO" ] && { find_name || { case "${INTERFACE%%[0-9]*}" in wds) for ifname in lan wifi; do eval "if=\"\${${ifname}_ifname}\"" [ -z "$IFPROTO" ] && [ "$if" = "br0" ] && { eval "IFPROTO=\"\${${2}_proto}\"" IFTYPE="${tmp}" } done [ -z "$IFPROTO" ] && return 0 ;; atm) for tmp in lan wan wifi ${ifnames}; do eval "if_proto=\"\${${2}_proto}\"" [ "$if_proto" = "pppoa" ] && { do_ifup "pppoa" "$tmp" "$INTERFACE" return 0 } done ;; *) return 0 ;; esac } } case "${INTERFACE%%[0-9]*}" in ppp|atm);; *) eval "mac=\"\${${IFTYPE}_hwaddr}\"" ${mac:+$DEBUG ifconfig $INTERFACE down hw ether $mac} ;; esac eval "if=\"\${${IFTYPE}_ifname}\"" if [ "${if%%[0-9]}" = "br" ]; then if_valid "$INTERFACE" && { ifconfig "$if" 2>&- >&- || { eval "stp=\"\${${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 $DEBUG brctl addif "$if" "$INTERFACE" $DEBUG ifconfig "$INTERFACE" allmulti else do_ifup "$IFPROTO" "$IFTYPE" "$if" fi } else [ "${INTERFACE%%[0-9]*}" = "ppp" ] || do_ifup "$IFPROTO" "$IFTYPE" "$if" fi } do_unregister() { [ -z "$IFTYPE" -o -z "$IFPROTO" ] && { find_name || return 0 } [ "${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